Constant-temperature and constant-pressure valve element and faucet thereof

Abstract

The utility model belongs to the technical field of water heating equipment, and particularly relates to a constant-temperature and constant-pressure valve element and a faucet thereof, the constant-temperature and constant-pressure valve element comprises an outer sleeve, a valve element sleeve, two inner sealing rings, two outer twisting pieces and a blocking ring, and the valve element sleeve, the two inner sealing rings, the two outer twisting pieces and the blocking ring are arranged in the outer sleeve. The two outer twisting pieces are arranged on the opposite side faces of the two inner sealing rings. Through the adjusting mechanism and the linkage mechanism, the pushing spring in the brake ring on the adjusting mechanism is influenced by the temperature of hot water, after cold water is stopped from being input, the pushing spring lowers pushing of the brake block, and then the plugging ring is driven to move and be attached to the hot water flow limiting ring under the pulling of the pulling-back spring; and a plurality of first conical holes are sealed, so that the effects of stopping cold water and automatically closing input of hot water can be achieved, and the use safety of a user is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of water heating equipment, and particularly relates to a constant-temperature and constant-pressure valve core and a faucet thereof. BACKGROUND

[0002] When multiple water-using appliances are used simultaneously or the water pressure of the water supply pipe network fluctuates, the water flow of the ordinary faucet will be affected, and the water flow will be large or small at different times. The constant-pressure faucet can automatically adjust the water outlet pressure to ensure the stability of the water flow, so that users will not feel uncomfortable due to sudden changes in the water flow during hand washing, vegetable washing, and bathing. In addition, for the temperature control valve core in the existing faucet, the amount of cold and hot water entering on both sides is usually controlled to control the water temperature of the faucet. If the cold water stops flowing due to other reasons, the hot water will flow out without mixing with the cold water, and the temperature of the hot water flowing out is relatively high, which may cause harm to the user. SUMMARY

[0003] The utility model aims to provide a constant-temperature and constant-pressure valve core and a faucet thereof, which can solve the above technical problems.

[0004] The technical scheme adopted by the utility model is as follows:

[0005] The constant-temperature and constant-pressure valve core and the faucet thereof provided by the utility model include an outer sleeve, a valve core sleeve, two inner sealing rings, two outer torsion members, and a blocking ring, the two sides of the valve core sleeve are connected to the opposite sides of the two inner sealing rings, and the two outer torsion members are arranged on the opposite sides of the two inner sealing rings.

[0006] The valve core sleeve includes a hot water baffle, a cold water baffle, a mixing pipe, an extension sleeve, a resistance pipe, and an inner blocking ring, the hot water baffle and the cold water baffle are sleeved in the outer sleeve, the hot water baffle and the cold water baffle correspond to the cold and hot water inlets arranged on the outer sleeve, a filter cover is arranged on the hot water baffle and the cold water baffle, the mixing pipe and the extension sleeve are arranged on the opposite sides of the hot water baffle and the cold water baffle, one side of the resistance pipe is sleeved in the mixing pipe, a plurality of water outlets are formed on one side of the mixing pipe, the resistance pipe corresponds to the plurality of water outlets after adjustment, the other side of the resistance pipe is sleeved in the extension sleeve, a fixing ring and an inner blocking ring are arranged in the outer sleeve, the fixing ring is arranged on the outer circumferential surface of the extension sleeve, the blocking ring and the inner blocking ring are arranged on the two sides of the outer circumferential surface of the mixing pipe, an adjustment mechanism is arranged in the hot water baffle in the mixing pipe, and a linkage mechanism is arranged in the cold water baffle in the resistance pipe.

[0007] The adjusting mechanism comprises a hot water flow limiting ring, a back pulling spring, an opposite pulling spring, a reset spring, an inner sleeve rod and a brake ring, the hot water flow limiting ring is arranged on one side of a hot water baffle cover, a plurality of first tapered holes are formed on the hot water flow limiting ring, a blocking ring and a hot water adjusting ring are slidably arranged in the hot water baffle cover, the reset spring is arranged in the hot water baffle cover, the blocking ring is connected with the hot water adjusting ring through the reset spring, an outer threaded rod is arranged on the side surface of the hot water adjusting ring, the outer threaded rod is arranged in threaded cooperation with an inner threaded pipe on one side of the hot water, and a water flow hole corresponding to the center of the reset spring is formed on the blocking ring.

[0008] When the constant temperature and constant pressure valve core and the faucet are used, the outer twisting member corresponding to the cold water outlet is twisted, the inner sleeve rod and the inner threaded pipe are synchronously rotated by the outer twisting member, the inner core rod on the linkage mechanism is moved by the rotation of the inner threaded pipe, the inner core rod drives the cold water adjusting ring to slide in the cold water baffle cover, the cold water adjusting ring slides through the filter cover, the cold water enters the cold water baffle cover through the filter cover, then enters the choke pipe through the second tapered hole on the cold water flow limiting ring, the connecting block and the choke pipe slide along the mixing pipe and the extension sleeve by the movement of the inner core rod, the choke pipe opens the water outlet hole channels on the mixing pipe, so that the faucet can flow out water, and the inner core rod drives the spoiler ring and the inner sleeve rod to move when the inner core rod moves, so that the spoiler ring pulls the back pulling spring to generate tension.

[0009] Then the other outer twisting member is rotated, the corresponding inner threaded pipe is synchronously rotated, the outer threaded rod on the adjusting mechanism is moved by the inner threaded pipe, the hot water adjusting ring slides in the hot water baffle cover by the outer threaded rod, so that the hot water enters the hot water baffle cover through the filter cover, then enters the mixing pipe through the water flow hole on the blocking ring and the first tapered hole on the hot water flow limiting ring, so that the hot water in the mixing pipe and the cold water entering through the choke pipe are mixed, and then flow out through the water outlet hole.

[0010] As preferred, the connecting rod is movably sleeved in the two first tapered holes, the brake ring is slidably sleeved on the inner sleeve rod through the sleeve sliding hole formed on the brake ring, one side of the inner sleeve rod is connected with the other side surface of the hot water flow limiting ring through the opposite pulling spring, the inner sleeve rod is arranged in the mixing pipe, the spoiler ring is movably sleeved in the choke pipe, the spoiler ring is slidably sleeved on the other side of the inner sleeve rod, a plurality of through holes are formed on the spoiler ring and the brake ring, the back pulling spring is sleeved on the inner sleeve rod, and the back pulling spring is arranged between the spoiler ring and the brake ring.

[0011] As preferred, the outer sleeve is provided with two internal threaded rings and a blocking ring connected with the valve core sleeve, the two internal threaded rings are respectively threadedly matched with two internal sealing rings, the two internal threaded rings are provided with two external sealing rings on opposite sides, the two external sealing rings are respectively arranged on the two internal sealing rings, and the two internal sealing rings are rotatably provided with an internal threaded tube connected with the valve core sleeve, the side surface of the outer torsion member is provided with an insertion slot, and a transmission rod is inserted and matched in the insertion slot and arranged on one side of the external threaded tube.

[0012] As preferred, the brake ring is formed with two symmetric insertion holes communicating with the sleeve sliding hole, two groups of sliding rail grooves are formed in the two insertion holes, two groups of clamping blocks are slidably sleeved in the two groups of sliding rail grooves, and two groups of push springs are sleeved in the two groups of sliding rail grooves, respectively. The push spring is arranged on the opposite side of the insertion hole and the clamping block, a plurality of clamping groove rings are formed on the inner sleeve rod, the opposite sides of the two groups of clamping blocks are clamped and matched with the clamping groove rings, a groove for sleeving the push spring is formed on the side surface of the insertion hole, and a limiting ring for blocking the brake ring is arranged on the inner sleeve rod close to the reverse pulling spring.

[0013] As preferred, the linkage mechanism comprises an inner core rod sleeved in the cold water baffle cover and the flow blocking pipe, the cold water baffle cover is provided with a cold water flow limiting ring close to the flow blocking pipe, a plurality of second tapered holes penetrating through both sides are formed in the cold water flow limiting ring, and a cold water adjusting ring is slidably arranged in the cold water baffle cover. The cold water adjusting ring is arranged on the inner core rod, and the cold water flow limiting ring is slidably sleeved on the inner core rod.

[0014] As preferred, one side of the inner core rod is arranged on the side surface of the spoiler ring, the other side of the inner core rod is threadedly matched with an internal threaded tube corresponding to the cold water inlet through the external helical thread, and the flow blocking pipe is provided with two symmetric connecting blocks, both of which are arranged on the inner core rod.

[0015] As preferred, the reverse pulling spring, the back pulling spring and the push spring are all memory alloy springs with thermal shrinkage performance, the thermal shrinkage tension of the back pulling spring is twice that of the reverse pulling spring and the push spring, and the reset spring is a memory alloy spring with thermal expansion performance.

[0016] The faucet adopts the constant temperature and pressure valve core.

[0017] The beneficial effects are:

[0018] 1. This utility model, through the adjustment mechanism and linkage mechanism, allows the push spring inside the brake ring on the adjustment mechanism to be affected by the hot water temperature. After the cold water input stops, the push spring reduces its pushing force on the brake block, and then, under the pull of the pull spring, it drives the sealing ring to move and stick to the hot water flow limiting ring, thus sealing multiple first conical holes. In this way, the effect of automatically shutting off the hot water input when the cold water stops can be achieved, improving the safety of users.

[0019] 2. This utility model uses the hot water flow limiting ring and cold water flow limiting ring on the valve core sleeve, as well as the first conical hole and the second conical hole, to compress and mix the hot and cold water entering the outer sleeve, thereby keeping the water flow from the faucet within a constant pressure range and ensuring water output stability. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0021] Figure 2 This is an exploded view of the outer sleeve of this utility model;

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the valve core tube of this utility model;

[0023] Figure 4 This is a schematic diagram of the valve core sleeve structure of this utility model;

[0024] Figure 5 This is an exploded view of the valve core sleeve of this utility model;

[0025] Figure 6 This is a schematic diagram of the internal structure of the flow-blocking tube of this utility model;

[0026] Figure 7 This is a schematic diagram of the adjustment mechanism structure of this utility model;

[0027] Figure 8 This is a schematic diagram of the other side of the adjustment mechanism of this utility model;

[0028] Figure 9 This is a schematic diagram of the brake ring structure of this utility model;

[0029] Figure 10 This is a schematic diagram of the clip block structure of this utility model;

[0030] Figure 11 This is a schematic diagram of the linkage mechanism of this utility model.

[0031] The attached diagram lists the components represented by each number as follows:

[0032] 1, outer sleeve; 2, valve core sleeve; 21, hot water baffle cover; 21a, cold water baffle cover; 22, filter cover; 23, mixing pipe; 24, extension sleeve; 25, fixed ring; 26, choke pipe; 261, connecting block; 27, inner baffle ring; 28, adjusting mechanism; 281, hot water flow limiting ring; 281a, first tapered hole; 282, inner sleeve rod; 282a, clamping groove ring; 283, brake ring; 283a, insertion hole; 283b, slide rail groove; 283c, clamping block; 283d, push spring; 283e, sleeve sliding hole; 284, reverse pull spring; 285, connecting rod; 286, spoiler ring; 287, return spring; 288, plugging ring; 289, hot water adjusting ring; 2810, reset spring; 2811, outer threaded rod; 29, linkage mechanism; 291, inner core rod; 292, cold water flow limiting ring; 292a, second tapered hole; 293, cold water adjusting ring; 3, inner sealing ring; 31, inner threaded pipe; 32, outer sealing ring; 33, transmission rod; 4, outer torsion member; 41, plug-in slot; 5, inner threaded ring; 6, blocking ring. DETAILED DESCRIPTION

[0033] In order to make the purpose and advantages of the utility model more clear and obvious, the utility model is specifically described below in combination with examples. It should be understood that the following text is only used to describe one or several specific embodiments of the utility model, and does not strictly limit the specific protection scope requested by the utility model.

[0034] As Figures 1-11 shown, a constant temperature and pressure valve core and a faucet thereof, comprising an outer sleeve 1 and a valve core sleeve 2, two inner sealing rings 3, two outer torsion members 4 and a blocking ring 6 arranged in the outer sleeve 1, the two sides of the valve core sleeve 2 are respectively connected with the opposite sides of the two inner sealing rings 3, and the two outer torsion members 4 are arranged on the opposite sides of the two inner sealing rings 3;

[0035] The valve core sleeve 2 comprises a hot water baffle cover 21, a cold water baffle cover 21a, a mixing pipe 23, an extension sleeve 24, a choke pipe 26 and an inner baffle ring 27, the hot water baffle cover 21 and the cold water baffle cover 21a are sleeved in the outer sleeve 1, the hot water baffle cover 21 and the cold water baffle cover 21a correspond to the cold and hot water inlets provided on the outer sleeve 1 respectively, the hot water baffle cover 21 and the cold water baffle cover 21a are provided with filter covers 22, the mixing pipe 23 and the extension sleeve 24 are provided on the opposite sides of the hot water baffle cover 21 and the cold water baffle cover 21a respectively, one side of the choke pipe 26 is sleeved in the mixing pipe 23, a plurality of water outlets are formed on one side of the mixing pipe 23, the choke pipe 26 corresponds to the plurality of water outlets after adjustment, the other side of the choke pipe 26 is sleeved in the extension sleeve 24 in a sliding manner, the outer sleeve 1 is provided with a fixing ring 25 and the inner baffle ring 27, the fixing ring 25 is provided on the outer circumferential surface of the extension sleeve 24, the baffle ring 6 and the inner baffle ring 27 are provided on the outer circumferential sides of the mixing pipe 23 respectively, the mixing pipe 23 is provided with an adjusting mechanism 28 located in the hot water baffle cover 21, the choke pipe 26 is provided with a linkage mechanism 29 located in the cold water baffle cover 21a;

[0036] The adjusting mechanism 28 comprises a hot water flow limiting ring 281, a back pulling spring 287, an inverse pulling spring 284, a reset spring 2810, an inner sleeve rod 282 and a brake ring 283, the hot water flow limiting ring 281 is provided on one side in the hot water baffle cover 21, a plurality of first tapered holes 281a penetrating on both sides are formed on the hot water flow limiting ring 281, a plugging ring 288 and a hot water adjusting ring 289 are provided in the hot water baffle cover 21 in a sliding manner, the reset spring 2810 is provided in the hot water baffle cover 21, the plugging ring 288 is connected with the hot water adjusting ring 289 through the reset spring 2810, an outer threaded rod 2811 is provided on the side surface of the hot water adjusting ring 289, the outer threaded rod 2811 is provided in threaded cooperation with an inner threaded pipe 31 on the hot water side, a water flow hole corresponding to the center of the reset spring 2810 is formed on the plugging ring 288.

[0037] As an optional implementation, the connecting rod 285 is sleeved in the two first conical holes 281a respectively, the brake ring 283 is sleeved on the inner sleeve rod 282 through the sleeve sliding hole 283e, one side of the inner sleeve rod 282 is connected with the other side of the hot water limiting ring 281 through the back pull spring 284, the inner sleeve rod 282 is arranged in the mixing pipe 23, the spoiler ring 286 is sleeved in the resistance pipe 26, the spoiler ring 286 is sleeved on the other side of the inner sleeve rod 282, a plurality of through holes are formed in the spoiler ring 286 and the brake ring 283, the back pull spring 287 is sleeved on the inner sleeve rod 282, and the back pull spring 287 is arranged between the spoiler ring 286 and the brake ring 283. In this way, the through holes in the spoiler ring 286 and the brake ring 283 can block the cold water and be impacted, the brake ring 283 and the spoiler ring 286 can be provided with a moving power close to the hot water limiting ring 281, and the reset movement when the cold water is supplied can be facilitated.

[0038] Referring to the drawings Figure 3 The outer sleeve pipe 1 is provided with two inner threaded rings 5 and a blocking ring 6 connected with the valve core sleeve 2, the two inner threaded rings 5 are respectively threadedly matched with two inner sealing rings 3, the two inner threaded rings 5 are provided with two outer sealing rings 32 on opposite sides, the two outer sealing rings 32 are respectively arranged on the two inner sealing rings 3, the two inner sealing rings 3 are rotatably provided with inner threaded pipes 31 connected with the valve core sleeve 2, the outer torsion member 4 is provided with a plug-in groove 41 on the side, the plug-in groove 41 is provided with a transmission rod 33 in plug-in fit, the plug-in groove 41 and the transmission rod 33 are hexagonal in shape, and the transmission rod 33 is arranged on one side of the outer threaded pipe. In this way, the inner sealing ring 3 and the inner threaded ring 5 can block the cold and hot water area of the outer sleeve pipe 1, and then the outer torsion member 4 is rotated to adjust the valve core sleeve 2.

[0039] Referring to the drawings Figure 9, two symmetric and intercommunication with sleeve sliding hole 283e are formed on the brake ring 283, two groups of slide rail grooves 283b are formed in the two insertion holes 283a, two groups of slide rail grooves 283b are respectively sleeved with the clamping blocks 283c, two groups of slide rail grooves 283b are respectively sleeved with two groups of push spring 283d, the push spring 283d is arranged on the opposite side of the insertion hole 283a and the clamping block 283c, a plurality of clamping groove rings 282a are formed on the inner sleeve rod 282, the opposite side of the two groups of clamping blocks 283c is clamped with the clamping groove ring 282a, the clamping groove ring 282a corresponds to the plurality of water outlet holes on the mixing pipe 23, the side of the insertion hole 283a is formed with a groove for sleeving the push spring 283d, the inner sleeve rod 282 is provided with a limiting ring for blocking the brake ring 283 on the side close to the reverse spring 284, so that the clamping block 283c is pushed by the push spring 283d and clamped on the clamping groove ring 282a, thereby limiting the movement of the brake ring 283, so that when the reverse spring 287 is pulled, the brake ring 283 is in a fixed position, and the force of the reverse spring 287 is stored by opening adjustment of cold water, thereby facilitating the power supply of automatic stop of hot water in the later period.

[0040] Referring to the drawings Figure 11 , the linkage mechanism 29 includes an inner core rod 291 sleeved in the cold water baffle cover 21a and the flow blocking pipe 26, the cold water baffle cover 21a is provided with a cold water flow limiting ring 292 on the side close to the flow blocking pipe 26, a plurality of second tapered holes 292a are formed on the cold water flow limiting ring 292, a cold water adjusting ring 293 is slidably arranged in the cold water baffle cover 21a, the cold water adjusting ring 293 is arranged on the inner core rod 291, and the cold water flow limiting ring 292 is slidably sleeved on the inner core rod 291, so that when the cold water flows out through the second tapered hole 292a, the shape of the second tapered hole 292a collects the water flow and increases the pressure before flowing out, so that the water pressure entering the flow blocking pipe 26 is in a constant range, thereby the same pressure mixing with hot water through the turbulence ring 286 and the brake ring 283.

[0041] Further, one side of the inner core rod 291 is arranged on the side of the turbulence ring 286, and the other side of the inner core rod 291 is threadedly connected with the internally threaded pipe 31 corresponding to the cold water outlet through the externally threaded connection, the flow blocking pipe 26 is provided with two symmetric connecting blocks 261, and the two connecting blocks 261 are arranged on the inner core rod 291, so that when the inner core rod 291 moves, the flow blocking pipe 26 is driven to move through the connecting blocks 261, thereby opening the water outlet channel on the mixing pipe 23, and facilitating the outflow of the mixed water flow.

[0042] Further, the anti-pulling spring 284, the back-pulling spring 287 and the pushing spring 283d are all set as memory alloy springs with thermal contraction performance, the thermal contraction tension of the back-pulling spring 287 is set as twice the thermal contraction tension of the anti-pulling spring 284 and the pushing spring 283d, and the reset spring 2810 is set as a memory alloy spring with thermal expansion performance, so that after the anti-pulling spring 284, the back-pulling spring 287, the reset spring 2810 and the pushing spring 283d are affected by hot water temperature, the pushing spring 283d is contracted by heat to reduce the pushing effect on the clamping block 283c, so that the back-pulling spring 287 is contracted by heat to increase the tension on the brake ring 283, thereby driving the brake ring 283 to slide along the inner sleeve rod 282, and driving the blocking ring 288 to block the first tapered hole 281a on the hot water flow limiting ring 281, while the reset spring 2810 is expanded by heat, thereby assisting the movement of the blocking ring 288.

[0043] With the above structure, in use, by twisting the outer twisting member 4 corresponding to the cold water outlet, the outer twisting member 4 drives the inner sleeve rod 282 and the inner threaded pipe 31 to rotate synchronously, while the rotation of the inner threaded pipe 31 drives the inner core rod 291 on the linkage mechanism 29 to move, so that the inner core rod drives the cold water adjusting ring 293 to slide in the cold water baffle cover 21a, the cold water adjusting ring 293 slides through the filter cover 22, so that the cold water enters the cold water baffle cover 21a through the filter cover 22, and then enters the flow resistance pipe 26 through the second tapered hole 292a on the cold water flow limiting ring 292, while the movement of the inner core rod 291 drives the connecting block 261 and the flow resistance pipe 26 to slide along the mixing pipe 23 and the extension sleeve 24, so that the flow resistance pipe 26 opens the multiple water outlet hole channels on the mixing pipe 23, thereby enabling the faucet to flow out water, while the movement of the inner core rod 291 drives the turbulence ring 286 and the inner sleeve rod 282 to move, so that the turbulence ring 286 pulls the back-pulling spring 287 to generate tension;

[0044] Then rotate the other outer twisting member 4 to rotate, synchronously drive the corresponding inner threaded pipe 31 to rotate, so that the inner threaded pipe 31 drives the outer threaded rod 2811 on the adjusting mechanism 28 to move, the outer threaded rod 2811 drives the hot water adjusting ring 289 to slide in the hot water baffle cover 21, so that the hot water enters the hot water baffle cover 21 through the filter cover 22, and then enters the mixing pipe 23 through the water flow hole on the blocking ring 288 and the first tapered hole 281a on the hot water flow limiting ring 281, so that the hot water in the mixing pipe 23 and the cold water entering through the flow resistance pipe 26 are mixed, and then flow out through the water outlet hole into the faucet;

[0045] During use, cold water is stopped from being input for other reasons, so that hot water is fully entered, causing temperature to rise, and the anti-pulling spring 284, the back-pulling spring 287, the reset spring 2810 and the pushing spring 283d are heated, so that the pushing spring 283d is heated to shrink, and the pushing on the clamping block 283c is reduced, when the back-pulling spring 287 pulls the brake ring 283, the clamping block 283c is separated from the clamping of the clamping groove ring 282a, and the elasticity of the back-pulling spring 287 is enhanced due to the influence of temperature, so that the brake ring 283 is pulled to move close to the spoiler ring 286, and the connecting rod 285 and the blocking ring 288 are synchronously moved by the brake ring 283, so that the blocking ring 288 is moved to be attached to the side of the hot water flow limiting ring 281, so as to block the first tapered hole 281a on the hot water flow limiting ring 281 to limit the outflow, so as to limit the hot water in the hot water blocking cover 21 to flow into the mixing pipe 23, so as to achieve the effect that cold water is stopped and hot water is automatically stopped from flowing out.

[0046] The preferred embodiments of the present application are described above, it should be noted that, for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, these improvements and refinements should also be considered as the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application are implemented according to the conventional means in the art, unless otherwise specified and limited.

Claims

1. A thermostatic pressure balanced spool, characterized by: The utility model provides a valve core sleeve (2) and two inner sealing rings (3) are connected to the both sides of the valve core sleeve (2), two outer torsion members (4) are arranged on the opposite sides of the two inner sealing rings (3), and a blocking ring (6) is arranged on the outer torsion members (4). The valve core sleeve (2) comprises a hot water baffle (21), a cold water baffle (21a), a mixing pipe (23), an extension sleeve (24), a flow resistance pipe (26) and an inner blocking ring (27), the hot water baffle (21) and the cold water baffle (21a) are sleeved in the outer sleeve (1), the hot water baffle (21) and the cold water baffle (21a) correspond to the cold and hot water inlets arranged on the outer sleeve (1), the hot water baffle (21) and the cold water baffle (21a) are provided with filter covers (22), the mixing pipe (23) and the extension sleeve (24) are arranged on the opposite sides of the hot water baffle (21) and the cold water baffle (21a) respectively, one side of the flow resistance pipe (26) is sleeved in the mixing pipe (23), a plurality of water outlets are formed on one side of the mixing pipe (23), the flow resistance pipe (26) is adjusted to correspond to the plurality of water outlets, the other side of the flow resistance pipe (26) is sleeved in the extension sleeve (24) in a sliding mode, the outer sleeve (1) is provided with a fixing ring (25) and the inner blocking ring (27), the fixing ring (25) is arranged on the outer circumferential surface of the extension sleeve (24), the blocking ring (6) and the inner blocking ring (27) are arranged on the outer circumferential sides of the mixing pipe (23) respectively, the mixing pipe (23) is provided with an adjusting mechanism (28) located in the hot water baffle (21), and the flow resistance pipe (26) is provided with a linkage mechanism (29) located in the cold water baffle (21a). The adjusting mechanism (28) comprises a hot water flow limiting ring (281), a back pulling spring (287), an inverse pulling spring (284), a reset spring (2810), an inner sleeve rod (282) and a brake ring (283), the hot water flow limiting ring (281) is arranged on one side in the hot water baffle (21), a plurality of first tapered holes (281a) penetrating through two sides are formed on the hot water flow limiting ring (281), a plugging ring (288) and a hot water adjusting ring (289) are arranged in the hot water baffle (21) in a sliding mode, the reset spring (2810) is arranged in the hot water baffle (21), the plugging ring (288) is connected to the hot water adjusting ring (289) through the reset spring (2810), an outer threaded rod (2811) is arranged on the side surface of the hot water adjusting ring (289), the outer threaded rod (2811) is arranged in threaded cooperation with an inner threaded pipe (31) on one side of the hot water, and a water flow hole corresponding to the center of the reset spring (2810) is formed on the plugging ring (288).

2. The thermostatic pressure-balanced valve trim according to claim 1, characterized in that: Two first taper holes (281a) are movably sleeved with connecting rods (285) respectively, the brake ring (283) is sleeved on the inner sleeve rod (282) through the sleeving hole (283e) formed, one side of the inner sleeve rod (282) is connected with the other side of the hot water flow limiting ring (281) through the back pulling spring (284), the inner sleeve rod (282) is arranged in the mixing pipe (23), the resistance pipe (26) movably sleeves the spoiler ring (286), the spoiler ring (286) is sleeved on the other side of the inner sleeve rod (282), a plurality of through holes are formed in the spoiler ring (286) and the brake ring (283), the back pulling spring (287) is sleeved on the inner sleeve rod (282), and the back pulling spring (287) is arranged between the spoiler ring (286) and the brake ring (283).

3. A thermostatic pressure-balanced valve cartridge according to claim 2, characterized in that: Two inner threaded rings (5) and a blocking ring (6) connected with the valve core sleeve (2) are arranged in the outer sleeve pipe (1), two inner sealing rings (3) are threadedly matched with the two inner threaded rings (5) respectively, two outer sealing rings (32) are arranged on the two inner sealing rings (3) respectively, the outer torsion member (4) is arranged on the outer threaded pipe (31) connected with the valve core sleeve (2), the side of the outer torsion member (4) is provided with a plug groove (41), the plug groove (41) is provided with a transmission rod (33) in plug fit, and the transmission rod (33) is arranged on one side of the outer threaded pipe.

4. A thermostatic pressure-balanced valve cartridge according to claim 3, characterized in that: The brake ring (283) is provided with two symmetrical insertion holes (283a) communicating with the sleeving hole (283e), two groups of slide rail grooves (283b) are formed in the two insertion holes (283a), two groups of clamping blocks (283c) are sleeved in the two groups of slide rail grooves (283b) respectively, two groups of push spring (283d) are sleeved in the two groups of slide rail grooves (283b) respectively, the push spring (283d) is arranged on the opposite side of the insertion hole (283a) and the clamping block (283c), a plurality of clamping groove rings (282a) are formed on the inner sleeve rod (282), the opposite sides of the two groups of clamping blocks (283c) are clamped with the clamping groove rings (282a), recesses for sleeving the push spring (283d) are formed on the side of the insertion hole (283a), and the inner sleeve rod (282) is provided with a limiting ring for blocking the brake ring (283) on the side close to the back pulling spring (284).

5. A thermostatic pressure-balanced valve cartridge according to claim 4, characterized in that: The linkage mechanism (29) comprises an inner core rod (291) sleeved in the cold water baffle cover (21a) and the choke pipe (26), a cold water flow limiting ring (292) is arranged in the cold water baffle cover (21a) and close to the choke pipe (26), a plurality of second tapered holes (292a) are formed on the cold water flow limiting ring (292), a cold water adjusting ring (293) is arranged in the cold water baffle cover (21a) and is sleeved on the inner core rod (291).

6. A thermostatic pressure-balanced valve cartridge according to claim 5, characterized in that: One side of the inner core rod (291) is arranged on the side of the spoiler ring (286), the other side of the inner core rod (291) is threadedly connected with the inner threaded pipe (31) corresponding to the cold water outlet, the choke pipe (26) is provided with two symmetrical connecting blocks (261), and the two connecting blocks (261) are arranged on the inner core rod (291).

7. A thermostatic pressure-balanced valve cartridge according to claim 6, characterized in that: The anti-pulling spring (284), the back-pulling spring (287) and the push spring (283d) are all memory alloy springs with thermal shrinkage performance, the thermal shrinkage tension of the back-pulling spring (287) is twice that of the anti-pulling spring (284) and the push spring (283d), and the reset spring (2810) is a memory alloy spring with thermal expansion performance.

8. A faucet characterized by: The faucet adopts the constant temperature and pressure valve core according to any one of claims 1 to 7.

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