CN212899868U

CN212899868U - Constant temperature valve core with cold and hot water ends capable of removing impurities in two directions

Info

Publication number: CN212899868U
Application number: CN202021464020.1U
Authority: CN
Inventors: 吴育志; 林凯; 刘佑成
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2021-04-06
Anticipated expiration: 2030-07-22

Abstract

The utility model discloses a two-way constant temperature valve core that can get rid of impurity of cold and hot water end, include: the water inlet is arranged below the first water inlet and communicated with the first cavity, and an opening on the lower surface of the first cavity is a water outlet; the plunger assembly is accommodated in the first cavity and changes the water passing area of the first water inlet or the second water inlet under the action of the plunger assembly; the transmission assembly is arranged above the plunger assembly, is connected with the shell and is used for pushing the plunger assembly to move downwards; the working spring is accommodated in the first cavity, arranged below the plunger assembly and used for pushing the plunger assembly to move upwards; the plunger assembly is compressed by rotating the transmission assembly or the working spring, so that the upper plunger amplifies the first water inlet or the lower plunger amplifies the second water inlet, impurities or silt blocked at the water inlet are discharged to the water outlet, the blocking problem is solved, and the service life of the thermostatic valve core is prolonged.

Description

Constant temperature valve core with cold and hot water ends capable of removing impurities in two directions

Technical Field

The utility model relates to a two-way constant temperature valve core that can get rid of impurity of cold and hot water end.

Background

In the bathroom field, thermostatic valve cores have been widely used in products; however, after a common thermostatic valve core on the market at home is used for a period of time, the water outlet end of the thermostatic valve core is easily blocked due to impurities or silt particles in water, and the thermostatic valve core cannot be normally used and temperature can not be adjusted.

SUMMERY OF THE UTILITY MODEL

The utility model provides a two-way thermostatic cartridge that can get rid of impurity of cold and hot water end for solving above-mentioned problem.

In order to achieve the above object, the utility model adopts the following technical scheme:

a thermostatic valve core with cold and hot water ends capable of removing impurities in two directions comprises:

the water inlet is arranged below the first water inlet and communicated with the first cavity, and an opening on the lower surface of the first cavity is a water outlet;

the plunger assembly is accommodated in the first cavity and changes the water passing area of the first water inlet or the second water inlet under the action of a spring of the plunger assembly;

the transmission assembly is arranged above the plunger assembly, is connected with the shell and is used for pushing the plunger assembly to move downwards; and

and the working spring is accommodated in the first cavity, is arranged below the plunger assembly and is used for pushing the plunger assembly to move upwards.

Preferably, the height of the plunger assembly is similar to the distance between the first water inlet and the second water inlet.

Preferably, the plunger assembly includes an upper plunger, a lower plunger, a connecting sleeve and a compression spring, the compression spring is disposed on the lower plunger, the upper plunger is sleeved on the compression spring and the lower plunger, the connecting sleeve is disposed on the upper plunger and connected with the lower plunger, and the compression spring is limited between the upper plunger and the lower plunger.

Preferably, the force value of the working spring is twice the force value of the compression spring.

Preferably, the upper plunger comprises a first side wall and a first end surface arranged on the upper surface of the first side wall, a second cavity is formed between the first side wall and the first end surface, a first through hole and a plurality of first water through holes arranged around the first through hole are arranged on the first end surface, and a first sealing groove is arranged on the first side wall;

the lower plunger comprises a second side wall and a second end face arranged on the lower surface of the second side wall, a first cylinder is arranged on the second end face upwards, the first cylinder is provided with a through second through hole, first threads are arranged on the inner surface of the second through hole, a plurality of second water through holes are arranged on the second end face and surround the first cylinder, and a second sealing groove is arranged on the second side wall;

the connecting sleeve comprises a second column body and a third end face arranged on the upper surface of the second column body, a second thread is arranged on the outer surface of the second column body, and a third through hole penetrates through the third end face and the second column body; and

the compression spring is sleeved on the first cylinder, the upper plunger cover is arranged on the lower plunger, the connecting sleeve is connected with the first thread through the second thread, and the compression spring is limited between the upper plunger and the lower plunger.

Preferably, a second sealing ring is arranged on the second sealing groove, so that the upper plunger and the lower plunger are in sealing fit; and a first sealing ring is arranged on the first sealing groove, so that the plunger assembly is in sealing fit with the shell.

Preferably, the transmission assembly comprises a handle seat, a guide rod, an adjusting handle, a top column and a protection spring, wherein the protection spring is arranged above the top column, the guide rod sleeve is arranged on the top column, the protection spring is limited in the guide rod, the adjusting handle is connected with the guide rod through threads, and the handle seat sleeve is arranged on the guide rod and the adjusting handle and is limited in the handle seat through a clamp spring.

Preferably, the handle seat comprises a third cavity penetrating through the upper end and the lower end, a fourth end surface is arranged on the upper surface of one side far away from the shell, third threads are arranged on the outer surface of the side wall of one side close to the shell, and a third sealing groove is arranged above the third threads;

the guide rod is arranged in the third cavity and comprises a fourth cavity penetrating through the upper end and the lower end, and an internal transmission screw thread is arranged on the inner surface of one end, far away from the plunger assembly, of the fourth cavity;

the adjusting handle comprises an outer transmission screw thread matched with the inner transmission screw thread, a fifth end surface is arranged above the outer transmission screw thread, a fourth sealing groove is arranged above the fifth end surface, a clamping groove is arranged above the fourth sealing groove, and an operating handle is arranged above the clamping groove;

the top column is arranged in the fourth cavity, and a yielding groove is formed in the middle of the top column; and

the protection spring is arranged above the top column and is contained in the fourth cavity;

the adjusting handle penetrates through the third cavity from bottom to top, the fourth end face limits the fifth end face to the upper side, and the clamping spring is inserted into the clamping groove to enable the adjusting handle to be positioned on the fourth end face.

Preferably, a fourth sealing ring is arranged on the fourth sealing groove, so that the adjusting handle is in sealing fit with the handle seat.

Preferably, the lower surface of the shell is provided with a sixth end surface, the middle section of the third cylinder is located on the sixth end surface, the water outlet is arranged on the third cylinder in a penetrating manner, and the working spring is sleeved on the third cylinder.

Preferably, the thermostatic valve element further comprises a bulb, the two ends of the bulb are small in diameter, the middle section of the bulb is large in diameter, the middle section of the bulb is arranged between the plunger assembly and the third cylinder, one end of the bulb penetrates through the plunger assembly and is contained in the abdicating groove, and the other end of the bulb penetrates through the first water outlet and extends out of the first water outlet.

The utility model has the advantages that:

when the water inlet has impurity or silt to block, compress the plunger subassembly through the effect of rotating transmission assembly or working spring for go up the plunger and enlarge first water inlet or the second water inlet is enlargied to the plunger down, will block up the delivery port at the impurity or the silt of water inlet, overcome the problem of jam, prolonged thermostatic cartridge's life.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is a structural sectional view of the thermostatic cartridge of the utility model, which can remove impurities from the cold and hot water ends in two directions.

Fig. 2 is an explosion diagram of the thermostatic cartridge of the utility model with two-way cold and hot water ends for removing impurities.

Fig. 3 is a cross-sectional view of the plunger assembly of the thermostatic cartridge of the present invention with two-way cold and hot water ends for removing impurities.

Fig. 4 is an axonometric view of the upper plunger of the thermostatic cartridge of the utility model, which can remove impurities from the cold and hot water ends in two directions.

Fig. 5 is an axonometric view of the lower plunger of the thermostatic cartridge of the utility model, which can remove impurities from the cold and hot water ends in two directions.

Fig. 6 is a sectional view of the transmission assembly of the thermostatic cartridge of the present invention with a cold and hot water end capable of removing impurities in two directions.

Fig. 7 is an axonometric view of the guide rod of the thermostatic cartridge of the utility model, which can remove impurities from the cold and hot water ends in two directions.

Fig. 8 is an axonometric view of the top column of the thermostatic cartridge of the utility model, which can remove impurities from the cold and hot water ends in two directions.

Fig. 9 is a sectional perspective view of a casing of a thermostatic cartridge of the present invention with a cold and hot water end capable of removing impurities in two directions.

Fig. 10 is a state diagram of the mixed water outlet of the thermostatic cartridge with the cold and hot water ends capable of removing impurities in two directions.

Fig. 11 is a state diagram of the cold water outlet and impurity discharging of the thermostatic cartridge with two-way impurity discharging function at the cold and hot water ends of the present invention.

Fig. 12 is a state diagram of the hot water outlet and impurity discharging of the thermostatic cartridge of the present invention with a cold and hot water end capable of discharging impurities in both directions.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention clearer and more obvious, the following description of the present invention with reference to the accompanying drawings and embodiments is provided for further details. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

As shown in fig. 1 to 9, a thermostatic valve core with a cold and hot water end capable of removing impurities in two directions comprises a shell 1, a plunger assembly 2, a transmission assembly 3, a working spring 4 and a thermal bulb 5; the shell 1 comprises a first cavity 11, a first water inlet 12, a second water inlet 13 and a water outlet 14, the plunger assembly 2 is accommodated in the first cavity 11, and the water passing area of the first water inlet 12 or the second water inlet 13 is changed under the action of a spring of the plunger assembly 2; the transmission assembly 3 is arranged above the plunger assembly 2, is connected with the shell 1, and is used for pushing the plunger assembly 2 to move downwards; the working spring 4 is accommodated in the first cavity 11, is arranged below the plunger assembly 2 and is used for pushing the plunger assembly 2 to move upwards; the water passing area of the first water inlet 12 or the second water inlet 13 is respectively adjusted under the action of the transmission assembly 3 or the working spring 4, so that the water outlet temperature of the thermostatic valve core is adjusted.

In this embodiment, the height of the plunger assembly 2 is similar to the distance between the first water inlet 12 and the second water inlet 13.

Referring to fig. 1 to 2 and 9, the first cavity 11 has two open ends, the first water inlet 12 is disposed on a side surface of the housing 1 and is communicated with the first cavity 11, the second water inlet 13 is disposed below the first water inlet 12 and is communicated with the first cavity 11, and an opening on a lower surface of the first cavity 11 is a water outlet 14; a sixth end surface 15 is arranged on the lower surface of the shell 1, the middle section of a third column 16 is positioned on the sixth end surface 15, the water outlet 14 is arranged on the third column 16 in a penetrating manner, and the third column 16 is sleeved with the working spring 4; a filter screen 6 is respectively sleeved on the outer surfaces of the first water inlet 12 and the second water inlet 13; and the upper part, the middle part and the lower part of the outer surface of the side wall of the shell 1 are respectively provided with a fifth sealing groove, a fifth sealing ring is arranged on the fifth sealing groove, and the fifth sealing ring is used for being in sealing fit with the matching piece.

Referring to fig. 1 to 5, the plunger assembly 2 includes:

the upper plunger 21 comprises a first side wall 211 and a first end surface 212 arranged on the upper surface of the first side wall 211, the first side wall 211 and the first end surface 212 form a second cavity, a first through hole 213 and a plurality of first water through holes 214 arranged around the first through hole 213 are arranged on the first end surface 212, and a first sealing groove 216 is arranged on the first side wall 211;

the lower plunger 22 comprises a second side wall 221 and a second end face 222 arranged on the lower surface of the second side wall 221, a first cylinder 223 is arranged on the second end face 222 upwards, the first cylinder 223 is provided with a through second through hole 224, first threads 225 are arranged on the inner surface of the second through hole 224, a plurality of second water through holes 226 are arranged on the second end face 222 in a surrounding mode around the first cylinder 223, and a second sealing groove 228 is arranged on the second side wall 221;

the connecting sleeve 23 comprises a second cylinder 231 and a third end surface 232 arranged on the upper surface of the second cylinder 231, a second thread 233 is arranged on the outer surface of the second cylinder 231, and a third through hole 234 penetrates through the third end surface 232 and the second cylinder 231; and

the compression spring 24 is sleeved on the first cylinder 223, the upper plunger cover 21 is arranged on the lower plunger 22, and the connecting sleeve 23 is connected with the first thread 225 through the second thread 233, so that the compression spring 24 is limited between the upper plunger 21 and the lower plunger 22.

In this embodiment, a second sealing ring 227 is disposed on the second sealing groove 228, so that the upper plunger 21 and the lower plunger 22 are in sealing engagement; a first sealing ring 215 is disposed on the first sealing groove 216, so that the plunger assembly 2 and the housing 1 are in sealing engagement.

Referring to fig. 1 to 2 and 6 to 8, the transmission assembly 3 includes:

the handle seat 31 comprises a third cavity 311 penetrating through the upper end and the lower end, a fourth end surface 312 is arranged on the upper surface of one side far away from the shell 1, a third thread 313 is arranged on the outer surface of the side wall of one side close to the shell 1, and a third sealing groove is arranged above the third thread 313;

the guide rod 32 is arranged in the third cavity 311, the guide rod 32 comprises a fourth cavity 321 penetrating through the upper end and the lower end, an inner transmission thread 322 is arranged on the inner surface of one end, away from the plunger assembly 2, of the fourth cavity 321, and a fourth sealing groove 323 is arranged on the outer surface of one end, away from the plunger assembly 2, of the fourth cavity 321;

the adjusting handle 33 comprises an outer transmission screw thread 331 used for being matched with the inner transmission screw thread 322, a fifth end surface 332 is arranged above the outer transmission screw thread 331, a fourth sealing groove is arranged above the fifth end surface 332, a clamping groove is arranged above the fourth sealing groove, and an operating handle 335 is arranged above the clamping groove;

a top pillar 34 disposed in the fourth cavity 321, wherein the top pillar 34 includes a middle yielding groove 341 and a sixth sealing groove 342 disposed on an outer surface of the top pillar 34; and

a protection spring 35 disposed above the top pillar 34 and accommodated in the fourth cavity 321;

the adjusting handle 33 passes through the third cavity 311 from bottom to top, the fourth end surface 312 limits the fifth end surface 332 to face upward, and the clamping spring 334 is inserted into the clamping groove, so that the adjusting handle 33 is positioned on the fourth end surface 312.

In this embodiment, a fourth sealing ring 333 is disposed on the fourth sealing groove, so that the adjustment handle 33 is in sealing engagement with the handle seat 31; and a third sealing ring 314 is arranged on the third sealing groove, and the third sealing ring 314 is used for being in sealing fit with a fitting piece.

Referring to fig. 1 to 2, the diameter of both ends of the thermal bulb 5 is small, and the diameter of the middle section is large, and the middle section is arranged between the plunger assembly 2 and the third cylinder 16, so that the thermal bulb 5 cannot fall off from the thermostatic valve core; one end of the bulb 5 penetrates through the plunger assembly 2 and is accommodated in the relief groove 341, and the other end of the bulb 5 penetrates through the first water outlet 141 and extends out of the first water outlet 141.

Referring to fig. 10 to 12, the present invention works as follows: cold water enters the first water inlet 12, hot water enters the second water inlet 13, and when the force value of the working height of the compression spring 24 is approximately equal to that of the working spring 4, the thermostatic valve core works normally; the thermal bulb 5 is a high-precision paraffin thermal bulb, and the water inlet proportion of cold water and hot water is automatically adjusted by the principle of thermal expansion and cold contraction of the paraffin thermal bulb; the thermal expansion and cold contraction of the thermal bulb 5 drives the plunger assembly to move up and down to adjust the water inlet proportion of cold water and hot water, so that the water outlet temperature is adjusted and controlled to be constant within a certain range; the opening size of the first water inlet 12 is A1, the opening size of the second water inlet 13 is A2, and the opening A1 of the first water inlet 12 is 0.2 mm-0.3 mm in a normal use state. After the thermostatic cartridge is used for a period of time, impurities or sand particles may be present at the first water inlet 12 and the second water inlet 13; therefore, in a full hot state, in order to ensure that the working spring 4 can push the lower plunger 22 to move upwards, the force value of the working spring 4 is about twice that of the force value of the compression spring 24, and at the same time, the force value of the protection spring 35 is about twice that of the working spring 4, so that the working spring 4 can work normally in a normal use process, in a limit high temperature state, the force value generated by the thermal bulb 5 is larger than that of the protection spring 35, so that the thermal bulb 5 can push the protection spring 35 to move, and the thermal bulb 5 is protected from being damaged, the lower plunger 22 compresses the compression spring 24, the opening a2 of the second water inlet 13 is enlarged, and impurities at the end of the second water inlet 13 can be discharged; under the cold state entirely, through rotating adjustment handle 33, drive guide bar 32 promotes go up plunger 21 moves down, overcomes compression spring 24's spring force value, go up plunger 21 compression spring 24, opening A1 of first water inlet 12 enlargies, in this embodiment, go up plunger 21 upper surface and move down 1mm, opening A1 of first water inlet 12 is about 1.5mm, can discharge the impurity of first water inlet 12 end.

The utility model discloses when there is impurity or silt to block at the water inlet, through rotating transmission assembly 3 or work spring 4's effect and compression plunger subassembly 2 makes it enlargies to go up plunger 21 first water inlet 12 or plunger 22 enlargies down second water inlet 13 will block up and arrange at the impurity or the silt of water inlet delivery port 14, overcome the problem of jam, prolonged the life delivery port of constant temperature case.

While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. The utility model provides a cold and hot water end is two-way can get rid of thermostatic valve core of impurity which characterized in that includes:

2. The bi-directional impurity exclusion thermostatic cartridge of claim 1 wherein the plunger assembly has a height that is similar to the distance between the first and second water inlets.

3. The dual direction hot and cold water end purge thermostatic valve cartridge of claim 2, wherein the plunger assembly comprises an upper plunger, a lower plunger, a connecting sleeve, and a compression spring, the compression spring is disposed on the lower plunger, the upper plunger is sleeved on the compression spring and the lower plunger, the connecting sleeve is disposed on the upper plunger and connected to the lower plunger, and the compression spring is confined between the upper plunger and the lower plunger.

4. A bi-directional impurity-excluding thermostatic cartridge according to claim 3, wherein the force value of the working spring is twice the force value of the compression spring.

5. The thermostatic cartridge for cold and hot water end bidirectional purging foreign matter according to claim 4, wherein,

the upper plunger comprises a first side wall and a first end face arranged on the upper surface of the first side wall, a second cavity is formed between the first side wall and the first end face, a first through hole and a plurality of first water through holes arranged around the first through hole are formed in the first end face, and a first sealing groove is formed in the first side wall;

6. The thermostatic valve core with the cold and hot water ends capable of discharging impurities in a bidirectional mode according to claim 5, wherein a second sealing ring is arranged on the second sealing groove, so that the upper plunger and the lower plunger are in sealing fit; and a first sealing ring is arranged on the first sealing groove, so that the plunger assembly is in sealing fit with the shell.

7. The thermostatic valve cartridge of claim 1, wherein the transmission assembly comprises a handle seat, a guide rod, an adjusting handle, a top post and a protection spring, the protection spring is arranged above the top post, the guide rod is sleeved on the top post to limit the protection spring in the guide rod, the adjusting handle is connected with the guide rod through a thread, the handle seat is sleeved on the guide rod and the adjusting handle, and the adjusting handle is limited on the handle seat through a snap spring.

8. The thermostatic valve core with cold and hot water ends capable of removing impurities bidirectionally of claim 7,

the handle seat comprises a third cavity penetrating through the upper end and the lower end, a fourth end surface is arranged on the upper surface of one side far away from the shell, third threads are arranged on the outer surface of the side wall of one side close to the shell, and a third sealing groove is arranged above the third threads;

9. The thermostatic valve core with the cold and hot water ends capable of discharging impurities in two directions as claimed in claim 8, wherein a fourth sealing ring is arranged on the fourth sealing groove, so that the adjusting handle and the handle seat are in sealing fit.

10. The thermostatic valve core with the cold and hot water ends capable of removing impurities bidirectionally of claim 1, wherein a sixth end surface is arranged on the lower surface of the shell, the middle section of a third cylinder is positioned on the sixth end surface, the water outlet is arranged on the third cylinder in a penetrating way, and the working spring is sleeved on the third cylinder.