CN214500126U

CN214500126U - Thermostatic valve core soft sealing plunger and thermostatic valve core

Info

Publication number: CN214500126U
Application number: CN202120267891.2U
Authority: CN
Inventors: 郑敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-01
Filing date: 2021-02-01
Publication date: 2021-10-26
Anticipated expiration: 2031-02-01

Abstract

The utility model discloses a soft sealed plunger of thermostatic cartridge and thermostatic cartridge, wherein the soft sealed plunger of thermostatic cartridge includes the plunger body, the outer wall middle part of plunger body is equipped with the seal ring groove, two terminal surfaces of plunger body all are equipped with the ring channel, O type circle is installed to the interference in the ring channel, the one end of O type circle expose in the ring channel. The utility model provides a soft sealed plunger of thermostatic cartridge, the processing degree of difficulty is low, and is not fragile, can ensure complete leakproofness in installing thermostatic cartridge.

Description

Thermostatic valve core soft sealing plunger and thermostatic valve core

Technical Field

The utility model relates to a water valve technical field is mixed to the constant temperature, concretely a soft sealing plunger of thermostatic cartridge and thermostatic cartridge.

Background

The thermostatic valve core is a device which automatically adjusts the mixing proportion of cold water and hot water, so that the temperature of the mixed water can be automatically kept at a set temperature. The thermostatic valve core generally comprises a valve body, a thermosensitive element and a piston, wherein the thermosensitive element senses temperature to control the reciprocating movement of the piston and regulate the flow ratio of cold water and hot water entering the valve body so as to achieve constant-temperature water outlet. The common thermosensitive element is a paraffin constant temperature component and a memory alloy spring, wherein the memory alloy spring is a thermosensitive element newly introduced in recent years, the response of the thermosensitive element is extremely sensitive near 40 ℃, and the requirement of a user for stepless fine adjustment can be met, but because the development time is short, the production process and the product quality are not mature, a high-level technology and process are required for applying the thermosensitive element to precision parts in a large scale, products produced by different batches and manufacturers have certain differences, the effect when the memory alloy spring is actually used is not satisfactory, and the thermosensitive element is not effectively popularized yet. The production development of the paraffin constant-temperature component is long, the production process and the product quality are mature and stable, the difference among products is small, the price is cheaper, and the popularization rate is higher.

The plunger is an important component in the thermostatic valve core, can move up and down to adjust the water inflow of hot water or cold water or seal a hot water inlet and a cold water inlet, and the existing plungers are made of copper or plastic materials, are linearly and hard extruded with a material surface of a handle seat or a shell when sealing the cold water inlet or the hot water inlet, are easy to seal and leak water; and the plunger is easy to knock and damage, and the phenomenon that the planeness cannot reach the standard or the parallelism cannot reach the standard exists in the processing, so that safety accidents such as repair and the like are caused.

SUMMERY OF THE UTILITY MODEL

In order to compensate the deficiency that exists among the prior art, the utility model provides a soft sealing plunger of thermostatic cartridge, the processing degree of difficulty is low, and is not fragile, installs and can ensure complete leakproofness in the thermostatic cartridge.

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

the utility model provides a thermostatic valve core soft seal plunger, includes the plunger body, the outer wall middle part of plunger body is equipped with the seal ring groove, two terminal surfaces of plunger body all are equipped with the ring channel, the interference is installed O type circle in the ring channel, the one end of O type circle expose in the ring channel.

Further, the inner walls of the two ends of the plunger body are provided with a first step surface and a second step surface, the second step surface is sleeved with a gland, the outer wall of the exposed end of the gland is provided with a flange, and an O-shaped ring is arranged on the first step surface and passes through the flange and the plunger body.

Furthermore, the gland is a hollow cap, and the exposed end of the gland is flush with the end face of the plunger body.

Furthermore, the end outer wall of the gland facing the second step surface is provided with a chamfer.

The utility model also provides a thermostatic cartridge including above-mentioned thermostatic cartridge soft sealing plunger.

Further, the thermostatic valve core comprises a shell, an adjusting handle seat, an adjusting handle, a stud assembly, a push rod, a mandrel assembly, a shell spring and a backflow ring, wherein the push rod, the mandrel assembly, the shell spring and the backflow ring are arranged in the shell; the casing is equipped with cold water entry and hot water entry, regulation handle seat threaded connection in the casing top, double-screw bolt subassembly swing joint in the regulation handle seat, regulation handle stretches into in the regulation handle seat with the double-screw bolt subassembly is connected, backward flow circle threaded connection in the casing bottom, thermostatic cartridge soft sealing plunger is located in the casing, mandrel subassembly one end cup joints in the casing spring, and the other end cup joints in the thermostatic cartridge soft sealing plunger, the push rod is located the mandrel subassembly with between the double-screw bolt subassembly.

Compared with the prior art, the utility model discloses following beneficial technological effect has:

the utility model discloses a thermostatic valve core soft sealing plunger and thermostatic valve core, wherein the thermostatic valve core soft sealing plunger processing degree of difficulty is low, has reduced the grinding technology; the sealing mode of the plunger is changed from hard contact of copper and copper (or plastic and plastic) to soft contact of rubber and copper (or plastic), so that the complete sealing performance of the plunger is ensured, and 100 percent of water-break protection of the thermostatic valve core is realized; the soft seal of plunger long service life is difficult to be blocked the plunger by sand grain and impurity and is caused sealed inefficacy.

Drawings

Fig. 1 is a sectional view of the structure of a thermostatic cartridge soft sealing plunger of the utility model.

Fig. 2 is an explosion diagram of the structure of the soft sealing plunger of the thermostatic valve core of the utility model.

Fig. 3 is a sectional view of the thermostatic cartridge of the present invention.

Fig. 4 is an exploded view of a thermostatic cartridge according to the present invention.

Wherein: 1. a plunger body; 11. a seal ring groove; 12. a first step surface; 13. a second step surface; 2. an O-shaped ring; 3. a gland; 31. a flange; 4. a plunger piston seal ring;

10. a thermostatic valve core soft sealing plunger; 20. a housing; 201. a cold water inlet; 202. a hot water inlet; 30. an adjusting handle seat; 40. an adjusting handle; 50. a stud assembly; 60. a push rod; 70. a mandrel assembly; 80. a housing spring; 90. a reflux ring; 100. a handle clamp spring; 110. a plastic gasket; 120. a first seal ring; 130. a second seal ring; 140. a third seal ring; 150. and (5) filtering by using a filter screen.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention can be embodied in many other forms without departing from the spirit or essential characteristics thereof, and it should be understood that the invention is not limited to the specific embodiments disclosed below.

Example 1

As shown in fig. 1-2, the soft sealing plunger for the thermostatic valve element comprises a plunger body 1, wherein a sealing ring groove 11 is formed in the middle of the outer wall of the plunger body 1, annular grooves are formed in two end faces of the plunger body 1, an O-ring 2 is installed in each annular groove in an interference fit mode, and one end of each O-ring 2 is exposed out of each annular groove.

Specifically, the inner walls of the two ends of the plunger body 1 are respectively provided with a first step surface 12 and a second step surface 13, the second step surface 13 is sleeved with a gland 3, the outer wall of the exposed end of the gland 3 is provided with a flange 31, and the O-shaped ring 2 is arranged on the first step surface 12 and is clamped with the plunger body 1 through the flange 31. The gland 3 is a hollow cover and the exposed end of the gland is flush with the end face of the plunger body 1. The end part outer wall of the gland 3 facing the second step surface 13 is provided with a chamfer. It should be noted that the gland 3 can also be connected with the plunger body 1 by a screw connection or other connection methods, and similar changes are all within the protection scope of the present invention. The plunger seal ring 4 is arranged in the seal ring groove 11.

As shown in fig. 3-4, a thermostatic valve cartridge includes a housing 20, an adjustment handle seat 30, an adjustment handle 40, a stud assembly 50, a push rod 60 disposed in the housing 20, a plunger assembly 70, a housing spring 80, and a return coil 90. The shell 20 is provided with a cold water inlet 201 and a hot water inlet 202, the adjusting handle seat 30 is connected to the top end of the shell 20 in a threaded mode, the stud assembly 50 is movably connected into the adjusting handle seat 30, and the adjusting handle 40 extends into the adjusting handle seat 30 to be connected with the stud assembly 50. The backflow ring 90 is connected to the bottom end of the housing 20 through threads, the thermostatic valve core soft sealing plunger 10 is arranged in the housing 20, one end of the core rod assembly 70 is sleeved in the housing spring 80, the other end of the core rod assembly is sleeved in the thermostatic valve core soft sealing plunger 10, and the push rod 60 is arranged between the core rod assembly 70 and the stud assembly 50.

Specifically, the adjusting handle 40 is clamped with the adjusting handle seat 30 through a handle clamp spring 100, a plastic pad 110 is arranged between the end surfaces of the adjusting handle 40 and the adjusting handle seat 30, and a first sealing ring 120 is arranged between the inner walls of the adjusting handle 40 and the adjusting handle seat 30. The stud assembly 50 is composed of a stud 501, a top post 502, a stud spring 503 and a stud snap spring 504. The outer wall of the adjustment handle seat 30 is provided with a second sealing ring 130. A third sealing ring 140 is arranged on the outer wall of the shell 20 between the cold water inlet 201 and the hot water inlet 202 and below the hot water inlet 202. The cold water inlet 201 and the hot water inlet 202 are provided with filter screens 150.

Although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that modifications, equivalents, improvements and the like can be made in the technical solutions of the foregoing embodiments or in some technical features of the foregoing embodiments, but all modifications, equivalents, improvements and the like within the spirit and principle of the present invention are intended to be included in the scope of the present invention.

Claims

1. The utility model provides a thermostatic valve core soft seal plunger which characterized in that: the plunger comprises a plunger body, the outer wall middle part of plunger body is equipped with the seal ring groove, two terminal surfaces of plunger body all are equipped with the ring channel, interference mounting has O type circle in the ring channel, the one end of O type circle expose in the ring channel.

2. The soft sealing plunger of a thermostatic valve cartridge according to claim 1, wherein: the plunger body's both ends inner wall all is equipped with first step face and second step face, the cover is equipped with the gland on the second step face, the end outer wall that exposes of gland is equipped with the flange, O type circle is located on the first step face and pass through the flange with the plunger body chucking.

3. The soft sealing plunger of a thermostatic valve cartridge according to claim 2, wherein: the gland is a hollow cap, and the exposed end of the gland is flush with the end face of the plunger body.

4. The soft sealing plunger of a thermostatic valve cartridge according to claim 3, wherein: the end part outer wall of the gland facing the second step surface is provided with a chamfer.

5. A thermostatic cartridge, its characterized in that: comprising a soft sealing plunger according to any of claims 1 to 4.

6. A thermostatic cartridge according to claim 5, wherein: the device comprises a shell, an adjusting handle seat, an adjusting handle, a stud assembly, a push rod, a mandrel assembly, a shell spring and a backflow ring, wherein the push rod, the mandrel assembly, the shell spring and the backflow ring are arranged in the shell; the casing is equipped with cold water entry and hot water entry, regulation handle seat threaded connection in the casing top, double-screw bolt subassembly swing joint in the regulation handle seat, regulation handle stretches into in the regulation handle seat with the double-screw bolt subassembly is connected, backward flow circle threaded connection in the casing bottom, thermostatic cartridge soft sealing plunger is located in the casing, mandrel subassembly one end cup joints in the casing spring, and the other end cup joints in the thermostatic cartridge soft sealing plunger, the push rod is located the mandrel subassembly with between the double-screw bolt subassembly.