Disclosed is a clogging-proof and jamming-proof constant-temperature valve core, comprising an upper housing (1), a lower housing (2), a plunger component (3), a guide rod (4), a spline rod (5), a paraffin wax temperature sensor (6), and a working spring (7). The plunger component comprises a sealing gland (31), a connecting sleeve (32), a plunger upper cover (33), a plunger base (34), and a protective spring (35). The sealing gland (31) and the connecting sleeve (32) can be movably sleeved on the paraffin wax temperature sensor (6). The sealing gland (31) is arranged above the connecting sleeve (32), and, the sealing gland (31) and the connecting sleeve (32) are nested in each other. The top part of the paraffin wax temperature sensor (6) protrudes the sealing gland (31). The top part of the connecting sleeve (32) is abutted against the sealing gland (31). The bottom part of the connecting sleeve (32) is abutted against the paraffin wax temperature sensor (6). The plunger upper cover (33) and the plunger base (34) are movably nested in each other. The top part of the plunger cover (33) is abutted against the sealing gland (31). The bottom part of the plunger base (34) is abutted against the connecting sleeve (32). The protective spring (35) is provided between the plunger upper cover (33) and the plunger base (34), thus allowing the plunger upper cover (33), the protective spring (35), and the plunger base (34) to be locked tightly between the sealing gland (31) and the connecting sleeve (32). The clogging-proof and jamming-proof constant-temperature valve core solves the problem of a valve core being clogged by sediment.
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