CN211145448U

CN211145448U - Memory alloy thermostatic valve core for feeding cold water upwards

Info

Publication number: CN211145448U
Application number: CN201922202325.9U
Authority: CN
Inventors: 唐卫胜; 王增新; 严伟
Original assignee: Shaanxi Qunde Material Science & Technology Co ltd
Current assignee: Shaanxi Qunde Material Science & Technology Co ltd
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2020-07-31
Anticipated expiration: 2029-12-10

Abstract

The utility model discloses an upper cold water inlet memory alloy thermostatic valve core, which comprises a valve core upper body and a valve core lower body connected with the valve core upper body, wherein the valve core upper body and the valve core lower body are of hollow structures and form a water passing channel which is communicated up and down; an adjusting knob, an adjusting block and a spring sleeve are arranged in the inner cavity of the upper body of the valve core, a memory alloy spring is arranged in the spring sleeve, and the memory alloy spring is positioned in the water passing channel; the water-saving valve is characterized in that a slide block and a water-stopping ring are arranged in the inner cavity of the lower body of the valve core, a biasing spring is arranged in the inner cavity of the water-stopping ring, the water-stopping ring is connected with the slide block and is under the elastic action of the biasing spring, the spring sleeve is connected with the water-stopping ring and is under the elastic action of a memory spring, and a mixed water outlet is formed in the side wall of the bottom of the lower body of the valve. The utility model has the characteristics that go up cold hot water of intaking under water to effectively solved the phenomenon that the cold and hot water mixes inadequately and then accuse temperature is unstable when memory alloy spring is in case upper portion.

Description

Memory alloy thermostatic valve core for feeding cold water upwards

Technical Field

The utility model relates to a case particularly, relates to a memory alloy constant temperature valve core of enterprising cold water, is applicable to memory alloy constant temperature valve core such as shower facility.

Background

The prior memory alloy thermostatic valve core in the bathroom industry is structurally characterized in that a memory spring is mostly arranged at a water outlet, so that the position of a cold water inlet and a hot water inlet is heated up and cooled down, and is inconsistent with the traditional paraffin valve core; when the hot water inlet is arranged at the upper part of the valve core, heat can be conducted to the adjusting handle, and people can scald the valve core without paying attention to the hot water inlet. In addition, the water channel design of the existing thermostatic faucet in the market; most of the valves are designed according to the hot water inlet under the valve core and the cold water inlet on the valve core, including the use habits of people, so that a little resistance exists in the production, the sale and the use.

In view of this, the applicant designs the water flow direction structurally, so that the memory spring is always in the mixed water environment, the difficulty that the hot water inlet of the memory alloy thermostatic valve core is difficult to arrange at the lower part is overcome, the memory alloy spring is arranged at the upper part of the valve core, the market requirement is met, the cold water and the hot water are fully mixed, and the temperature control is further realized.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a memory alloy thermostatic cartridge of enterprising cold water is provided, guaranteed that thermostatic cartridge is cold, hot water inlet is unanimous with traditional paraffin case, enterprising cold hot water that advances under water promptly to effectively solved the memory alloy spring and be in case upper portion and the unstable phenomenon of accuse temperature that leads to.

In order to solve the technical problem, the utility model discloses a following technical scheme: the water-saving valve comprises a valve core upper body and a valve core lower body connected with the valve core upper body, wherein the valve core upper body and the valve core lower body are of hollow structures and form a water passing channel which is communicated up and down; an adjusting knob, an adjusting block and a spring sleeve are arranged in the inner cavity of the upper body of the valve core, a memory alloy spring is arranged in the spring sleeve, and the memory alloy spring is positioned in the water passing channel; the water-saving valve is characterized in that a slide block and a water-stopping ring are arranged in the inner cavity of the lower body of the valve core, a biasing spring is arranged in the inner cavity of the water-stopping ring, the water-stopping ring is connected with the slide block and is under the elastic action of the biasing spring, a memory spring sleeve is connected with the water-stopping ring and is under the elastic action of the memory spring, and a mixed water outlet is formed in the side wall of the bottom of the lower body of the valve.

Furthermore, the adjusting knob is limited on the valve core upper body through a clamp spring.

Further, the spring sleeve is connected with the water stopping ring through threads.

Furthermore, the center of the sliding block is provided with a first through hole and is in threaded connection with the top end of the water stopping ring.

Furthermore, the bias spring is arranged in the water interception ring, a second through hole is formed in the water interception ring, and elastic acting force is applied to the whole body formed by the memory spring sleeve, the water interception ring and the sliding block.

Further, the memory alloy spring applies elastic acting force to the whole body formed by the spring sleeve, the water stopping ring and the sliding block.

Furthermore, a third through hole is formed in the center of the spring sleeve, and the memory alloy spring is located in an inner cavity of the spring sleeve.

Furthermore, a first sealing ring and a second sealing ring are arranged between the circumferential direction of the adjusting knob and the valve core upper body.

Further, a third sealing ring is arranged between the sliding block and the lower body of the valve core.

Furthermore, a fourth sealing ring is arranged between the water stopping ring and the lower body of the valve core for stopping hot water and guiding the hot water to the upper part of the sliding block.

Furthermore, the upper valve core body is provided with a fifth sealing ring, the lower valve core body is provided with a sixth sealing ring and a seventh sealing ring, the mixed water outlet is positioned between the seventh sealing ring and the inner bottom surface of the lower valve core body, the fifth sealing ring and the sixth sealing ring seal cold water and isolate the cold water from hot water, the sixth sealing ring and the seventh sealing ring seal hot water and isolate the cold water from the mixed water, and the seventh sealing ring isolates the mixed water from the hot water.

The utility model has the characteristics that go up cold hot water of intaking under water to effectively solved the phenomenon that the cold and hot water mixes inadequately and then accuse temperature is unstable when memory alloy spring is in case upper portion. Compared with the prior art, the beneficial effects of the utility model reside in that:

1. the optimized structural design is adopted, the memory alloy spring is arranged on the upper portion of the valve core, the water flow direction of hot water is changed through the sealing ring arranged outside the water stop ring, the memory spring sleeve is arranged, cold water and hot water are mixed and then flow out through the center of the memory spring sleeve, cold water or hot water is prevented from directly scouring the memory spring, the memory spring is located in a water passing channel, namely, the memory spring is always in a mixed water environment, and the problem that the temperature control effect is not ideal due to insufficient mixing of the cold water and the hot water caused by the fact that the memory alloy spring is arranged on the upper.

2. The bias spring is arranged in the water interception ring and forms a bias structure with the memory alloy spring in the inner cavity of the sliding block and the memory spring sleeve, so that the stress direction is on the same axis, the stress structure of the temperature adjustment sliding block in the valve body is optimized, and the stability of the sliding block in the temperature control process is ensured.

3. The influence of increased water pressure after the slider in the thermostatic valve core is limited in the in-service use is avoided, cold water and hot water flow to the valve core bottom via the thermostatic valve core after being fully mixed and then flow out, the strength loss of the memory spring and the bias spring is very small, and the thermostatic valve core temperature control effect is better and sensitive.

4. The force of the memory spring and the bias spring directly acts on the sliding block and a connecting part of the sliding block, force conversion is not carried out, force loss is small, and the temperature control of the valve core is more sensitive.

Drawings

Fig. 1a is a schematic cross-sectional view of an embodiment of a memory alloy thermostatic cartridge according to the present invention;

fig. 1b is an exploded view of an embodiment of the memory alloy thermostatic cartridge of the present invention;

FIG. 2 is a schematic view of the conditioning block of FIG. 1 a;

FIG. 3 is a schematic view of the slider of FIG. 1 a;

FIG. 4 is a top view corresponding to FIG. 3;

FIG. 5 is a schematic view of the water-stop ring of FIG. 1a

FIG. 6 is a schematic view of the memory alloy spring housing of FIG. 1 a.

Description of the reference numerals

1-adjusting knob; 2-valve core upper body; 3-a regulating block; 4-a memory alloy spring; 5-a spring sleeve; 6-a cold water inlet; 7-hot water inlet; 8-valve core lower body; 9-a water-stopping ring; 10-a biasing spring; 11-a clamp spring; 12-a first sealing ring; 13-a second sealing ring; 14-a third sealing ring; 15-a fourth sealing ring; 16-a fifth sealing ring; 17-a sixth sealing ring; 18-seventh sealing ring; 19-mixed water outlet; 20-a slide block; 21-hot water through hole; 22-a mixing chamber; 23-a first through central via; 24-a second through central through hole; 25-third through center via.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific examples, which should not be construed as limiting the invention.

Referring to fig. 1a and 1b and fig. 2 to 5, the memory alloy thermostatic valve core for upward cooling water according to the present invention includes a valve core upper body 2 and a valve core lower body 8 connected thereto, wherein the valve core upper body 2 and the valve core lower body 8 are hollow and form a water passage penetrating up and down; an adjusting knob 1, an adjusting block 3 and a memory alloy spring 4 are arranged in an inner cavity of the valve core upper body 2, a cold water inlet 6, a hot water inlet 7 and a mixed water outlet 19 are sequentially arranged on the side wall of the valve core lower body 8 from top to bottom, the cold water inlet 6 is used for accessing cold water, the hot water inlet 7 is used for accessing hot water, and after the cold water and the hot water are mixed, constant-temperature water is output from the mixed water outlet 19. A spring sleeve 5, a slide block 20, a bias spring 10 and a water stop ring 9 are arranged in the inner cavity of the valve core lower body 8; a first through central through hole 23 is formed in the center of the sliding block 20, and a second through central through hole 24 is formed in the center of the water stopping ring 9; a third through central through hole 25 is formed in the center of the spring sleeve 5, and the first through central through hole 23, the second through central through hole 24 and the third through central through hole 25 are communicated through threads to form a mixed water channel; a mixed water outlet 19 is formed in the side wall of the bottom of the lower body of the valve core; which are described separately below.

As shown in fig. 1a and 1b, an adjusting knob 1, an adjusting block 3 and a memory alloy spring 4 are arranged in an inner cavity of a valve core upper body 2, the adjusting knob 1 is limited by a clamp spring 11 and sealed by a first sealing ring 12 and a second sealing ring 13, and mixed water is prevented from seeping out. The top of the adjusting block 3 is connected with the bottom of the adjusting knob 1 through a multi-start thread. Referring to fig. 2, the bottom of the adjusting block 3 is provided with a circular step for limiting the memory alloy spring 4.

With continued reference to fig. 1a and 1b, a spring housing 5, a slider 20, a water stop ring 9 and a biasing spring 10 are disposed in a cavity of the lower body 8 of the valve core. Referring to fig. 3 and 4, the slider 20 is concave, the top of the slider is provided with a groove connected to the first through center hole, a plurality of hot water holes 21 extending along the height direction are uniformly distributed in the circumferential direction of the groove, hot water enters the valve body from the hot water inlet 7 and flows into the mixing chamber 22 through the three hot water holes 21 on the slider 20. The memory alloy spring 4 applies downward acting force to the memory alloy spring sleeve 5, and a third sealing ring 14 is arranged between the sliding block 20 and the valve core lower body 8 and used for isolating cold water and hot water. Referring to fig. 5, the water stop ring 9 is shaped like a Chinese character 'ji', and has threads on both the top outer circle and the inner circle, the threads on the outer circle are connected to the center hole on the bottom of the slider 20, the threads on the inner circle are connected to the spring housing 5, and a fourth sealing ring 15 is provided between the lower disk-shaped portion and the lower body 8 of the valve core for isolating hot water and mixed water. As shown in fig. 6, the bottom of the spring housing 5 is threaded to connect with a second through hole in the water stop ring 9, and the water stop ring 9 is internally provided with a biasing spring 10.

Referring to fig. 1a and fig. 1b, and with reference to fig. 2, fig. 3 and fig. 5, the memory alloy spring 4, the spring housing 5, the sliding block 20, the water stop ring 9 and the bias spring 10 form a bias structure inside the valve body, and the three are located in the same center bias structure, so that the sliding block 20 is ensured to move up and down on the same axis, the bad work of the bias structure is eliminated, and the stability of temperature control is improved. Driven by the adjusting knob 1, the adjusting block 3 can move up and down axially, the adjusting block 3 generates displacement when moving up and down to adjust the compression amount of the memory alloy spring 4, and the sliding block 20 moves up and down axially under the elastic acting force of the memory alloy spring 4 to change the sizes of the channels of the cold water inlet 6 and the hot water inlet 7, so that the purpose of setting the temperature is achieved.

In this embodiment, the central through holes of the spring sleeve 5, the slider 20 and the water stop ring 9 form a water outlet channel. The hot and cold water is mixed in the mixing chamber 22 and then flows out through the water outlet passage.

As shown in fig. 1a and 1b, hot water can only flow through the hot water through hole 21 on the slider 20 through the hot water inlet 7 to enter the mixing chamber 22, cold water enters through the cold water inlet 6, and the cold water and the hot water are fully mixed in the mixing chamber 22. Meanwhile, the memory alloy spring 4 generates elasticity change through the change of the temperature of the mixed water, so that the sliding block 20 is adjusted up and down, the size of the channel of the cold water inlet 6 and the hot water inlet 7 can be changed by moving the sliding block 20 up and down, and the constant outlet water temperature is realized.

In addition, a fifth sealing ring 16 is arranged on the valve core upper body 2, a sixth sealing ring 17 and a seventh sealing ring 18 are arranged on the valve core lower body 8, a mixed water outlet 19 is positioned between the seventh sealing ring 18 and the inner bottom surface of the valve core lower body 8, the fifth sealing ring 16 and the sixth sealing ring 17 seal cold water and isolate the cold water from hot water, the sixth sealing ring 17 and the seventh sealing ring 18 seal hot water and isolate the cold water and the mixed water, and the seventh sealing ring 18 isolates the mixed water from the hot water.

The utility model discloses during the assembly, each valve body and accuse temperature subassembly installation order:

1. the water-stopping ring 9 is integrally installed with the sliding block 20 and the spring sleeve 5 through threads;

2. the bias spring 10, the assembled slide block 20 and the memory alloy spring 4 are sequentially placed into the lower valve body 8;

3. the valve core upper body 2 and the adjusting knob 1 are fixed through a clamp spring 9, and the adjusting block 3 is connected and installed into a whole by means of multi-start threads on the adjusting knob 1.

4. And (4) matching the assembled valve core lower body 8 with the valve core upper body 2 through threads, and finishing installation.

The utility model discloses the rivers direction does: cold water enters the mixing cavity 22 of the upper valve core body 2 through the cold water inlet 6, hot water enters the lower valve core body 8 through the hot water inlet 7, and the hot water is mixed with the cold water in the mixing cavity 22 through the hot water through hole 21 of the slide block 20. The mixed water flows into the water outlet channel formed by the slide block 20, the water stop ring 9 and the central hole of the spring sleeve 5 and finally flows out through the mixed water outlet 19.

The utility model discloses after setting for the leaving water temperature, biasing structure strength is balanced. Since the outlet water temperature is set within the characteristic range of the memory alloy spring 4, if the water temperature fluctuates due to some reasons such as sudden changes in the water supply pressure and temperature, the elastic modulus of the memory alloy spring 4 changes greatly, which causes the corresponding change in the force of the memory alloy spring 4, thereby breaking the original force balance and pushing the slider 20 to move axially up and down to change the ratio of cold water to hot water. Because of adopting negative feedback control, the outlet water temperature of the thermostatic valve is quickly and automatically restored to be close to the original temperature needing to be controlled, and new balance is reestablished at the temperature so as to keep the outlet water temperature constant.

The utility model discloses use the nearly linear intelligent drive that the memory alloy spring can realize in the big temperature range, avoid the uncomfortable condition that temperature variation brought, improve the security, travelling comfort, intellectuality and the life of temperature-sensing valve. The utility model discloses case workable, batchization stability, uniformity are good.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the protection scope of the present invention is defined by the claims. Various modifications and equivalents of the invention can be made by those skilled in the art within the spirit and scope of the invention, and such modifications and equivalents should also be considered as falling within the scope of the invention.

Claims

1. A memory alloy thermostatic valve core for feeding cold water upwards comprises a valve core upper body and a valve core lower body connected with the valve core upper body, wherein the valve core upper body and the valve core lower body are of hollow structures and form a water passing channel which is communicated up and down; an adjusting knob, an adjusting block and a spring sleeve are arranged in the inner cavity of the upper body of the valve core, a memory alloy spring is arranged in the spring sleeve, and the memory alloy spring is positioned in the water passing channel; the water-saving valve is characterized in that a slide block and a water-stopping ring are arranged in the inner cavity of the lower body of the valve core, a biasing spring is arranged in the inner cavity of the water-stopping ring, the water-stopping ring is connected with the slide block and is under the elastic action of the biasing spring, the spring sleeve is connected with the water-stopping ring and is under the elastic action of a memory alloy spring, and a mixed water outlet is formed in the side wall of the bottom of the lower body of the valve.

2. The memory alloy thermostatic valve cartridge according to claim 1, wherein the adjusting knob is retained on the valve cartridge upper body by a snap spring.

3. The memory alloy thermostatic cartridge of claim 1, wherein the spring housing is threadably connected to the water trap ring.

4. The memory alloy thermostatic valve core according to claim 1, wherein the slider is provided with a first through hole at the center and is in threaded connection with the top end of the water stopping ring.

5. The memory alloy thermostatic valve cartridge according to claim 1, wherein the biasing spring is located within the water shut-off ring, and a second through hole is formed in the water shut-off ring to apply elastic force to the whole of the memory spring sleeve, the water shut-off ring and the slide block.

6. The memory alloy thermostatic cartridge of claim 5, wherein the memory alloy spring exerts a resilient force on the entirety of the spring housing, the cutoff ring, and the slide.

7. The memory alloy thermostatic valve cartridge according to claim 1, wherein a third through hole is formed in the center of the spring sleeve, and the memory alloy spring is located in an inner cavity of the spring sleeve.

8. The memory alloy thermostatic valve cartridge according to claim 1, wherein a first sealing ring and a second sealing ring are arranged between the circumferential direction of the adjusting knob and the valve cartridge upper body.

9. The memory alloy thermostatic valve cartridge of claim 1, wherein a third sealing ring is disposed between the slider and the valve cartridge lower body.

10. The memory alloy thermostatic valve cartridge of claim 1, wherein a fourth sealing ring is disposed between the water shut-off ring and the lower body of the valve cartridge to block hot water and guide the hot water to an upper portion of the slider.

11. The memory alloy thermostatic valve cartridge of claim 1, wherein the upper body of the valve cartridge is provided with a fifth sealing ring, the lower body of the valve cartridge is provided with a sixth sealing ring and a seventh sealing ring, the mixed water outlet is located between the seventh sealing ring and the inner bottom surface of the lower body of the valve cartridge, the fifth sealing ring and the sixth sealing ring seal cold water and isolate hot water, the sixth sealing ring and the seventh sealing ring seal hot water and isolate cold water and mixed water, the seventh sealing ring isolates mixed water and hot water.