CN214148449U

CN214148449U - High-airtightness bidirectional thermal expansion valve

Info

Publication number: CN214148449U
Application number: CN202120212707.4U
Authority: CN
Inventors: 吴一清
Original assignee: Zhejiang Minte Auto Air Conditioner Co ltd
Current assignee: Zhejiang Minte Auto Air Conditioner Co ltd
Priority date: 2021-01-26
Filing date: 2021-01-26
Publication date: 2021-09-07
Anticipated expiration: 2031-01-26

Abstract

The utility model discloses a high-airtightness two-way thermal expansion valve, which comprises a first filter box, an expansion valve body and a second filter box, wherein the bottom of the expansion valve body is in threaded connection with a connecting block, the top of the connecting block is fixedly connected with a connecting plate, the inside of the expansion valve body is in sliding connection with a lifting plate, a first spring is arranged between the lifting plate and the connecting plate, the top of the lifting plate is fixedly connected with a conical block, the top of the conical block is fixedly connected with a transmission rod, and the transmission rod is in sliding connection with the expansion valve body; the utility model discloses the beneficial effect who reaches is: the filtering function of impurities in the air is realized by arranging the first filtering box, the second filtering box, the activated carbon filtering plate and the bamboo charcoal filtering plate; the locking block, the locking groove, the chute, the sliding block and the sliding rod are arranged, so that the filter box is convenient to mount and dismount; the sealing gasket is arranged, so that the air tightness inside the device is improved, the use is convenient, and the practicability is high.

Description

High-airtightness bidirectional thermal expansion valve

Technical Field

The utility model relates to an expansion valve technical field specifically is a two-way thermal expansion valve of high gas tightness.

Background

The thermostatic expansion valve controls the opening degree of the expansion valve through the superheat degree of a gaseous refrigerant at the outlet of the evaporator, so the thermostatic expansion valve is widely applied to a non-flooded evaporator, the thermostatic expansion valve can be divided into an internal balanced type and an external balanced type according to different balancing modes, different substances and modes can be adopted in a thermostatic expansion valve temperature sensing system for filling, and the main modes comprise a liquid filling mode, an inflatable mode, a cross liquid filling mode, a mixed filling mode and an adsorption filling mode; the existing bidirectional thermal expansion valve is lack of a filtering device, so that impurities such as dust in air can easily enter the pipeline, the pipeline is blocked, the use is affected, and the practicability is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a two-way thermal expansion valve of high gas tightness to solve the problem that proposes in the above-mentioned background art.

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

the utility model provides a two-way thermal expansion valve of high gas tightness, includes filter cartridge, expansion valve body and No. two filter cartridges, the bottom threaded connection of expansion valve body has the connecting block, the top fixedly connected with connecting plate of connecting block, the inside sliding connection of expansion valve body has the lifter plate, be equipped with a spring between lifter plate and the connecting plate, the top fixedly connected with toper piece of lifter plate, the top fixedly connected with transfer line of toper piece, transfer line and expansion valve body sliding connection, the top fixedly connected with diaphragm capsule of expansion valve body, the outside of diaphragm capsule is equipped with the capillary, the one end fixedly connected with temperature tube of capillary, the inside of expansion valve body is equipped with the fixed slot, the inside sliding connection of fixed slot has the latch segment, be equipped with No. two springs between latch segment and the fixed slot, the bottom of a filter cartridge and the bottom of No. two filter cartridges all are equipped with the locking that uses with the latch segment cooperation A groove.

Preferably, one side of the first filter box is provided with an air inlet pipe, and one side of the second filter box is provided with an air outlet pipe.

Preferably, the inside of the first filter box and the inside of the second filter box are both provided with an activated carbon filter plate and a bamboo charcoal filter plate in sequence.

Preferably, the diaphragm is arranged in the diaphragm box and at the top of the transmission rod, a piston block is fixedly connected to the outer side of the transmission rod, and the piston block is connected with the expansion valve body in a sliding mode.

Preferably, the expansion valve body is fixedly connected with a fixing plate in the interior, and a tapered groove matched with the tapered block for use is formed in the fixing plate.

Preferably, a connecting pipe is arranged on the outer side of the expansion valve body, and a sealing gasket is arranged inside the expansion valve body.

Preferably, the inside of expansion valve body is equipped with the spacing groove, the inside sliding connection in spacing groove has the slide bar, the outside fixedly connected with stopper of slide bar, the outside of slide bar and the one side cover that is located the stopper are equipped with No. three springs, one side fixedly connected with sliding block of slide bar, the inside of latch segment is equipped with the chute that uses with the sliding block cooperation.

The utility model discloses the beneficial effect who reaches is: the filtering function of impurities in the air is realized by arranging the first filtering box, the second filtering box, the activated carbon filtering plate and the bamboo charcoal filtering plate; the locking block, the locking groove, the chute, the sliding block and the sliding rod are arranged, so that the filter box is convenient to mount and dismount; the sealing gasket is arranged, so that the air tightness inside the device is improved, the use is convenient, and the practicability is high.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is an enlarged view of a portion of the present invention.

In the figure: 1. an air inlet pipe; 2. a first filter cartridge; 3. an expansion valve body; 4. connecting blocks; 5. an air outlet pipe; 6. a temperature measuring tube; 7. a capillary tube; 8. a bellows; 9. a connecting pipe; 10. a membrane; 11. a conical block; 12. a lifting plate; 13. a first spring; 14. a connecting plate; 15. an activated carbon filter plate; 16. a bamboo charcoal filter plate; 17. a fixing plate; 18. a transmission rod; 19. a piston block; 20. a locking groove; 21. a locking block; 22. a chute; 23. a slider; 24. fixing grooves; 25. a second spring; 26. a limiting groove; 27. a third spring; 28. a limiting block; 29. a slide bar; 30. a gasket; 31. no. two filter cassettes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution:

a high-airtightness two-way thermal expansion valve comprises a first filter box 2, an expansion valve body 3 and a second filter box 31, wherein the bottom of the expansion valve body 3 is in threaded connection with a connecting block 4, the top of the connecting block 4 is fixedly connected with a connecting plate 14, the inside of the expansion valve body 3 is in sliding connection with a lifting plate 12, a first spring 13 is arranged between the lifting plate 12 and the connecting plate 14, the top of the lifting plate 12 is fixedly connected with a conical block 11 for facilitating flow control, the top of the conical block 11 is fixedly connected with a transmission rod 18, the transmission rod 18 is in sliding connection with the expansion valve body 3, the top of the expansion valve body 3 is fixedly connected with a diaphragm capsule 8, the outer side of the diaphragm capsule 8 is provided with a capillary tube 7, one end of the capillary tube 7 is fixedly connected with a temperature measuring tube 6 for facilitating temperature detection, a fixing groove 24 is arranged inside the expansion valve body 3, and the inside of the fixing groove 24 is in sliding connection with a locking block 21, a second spring 25 is arranged between the locking block 21 and the fixing groove 24, and locking grooves 20 matched with the locking block 21 for use are formed in the bottom of the first filter box 2 and the bottom of the second filter box 31, so that the first filter box 2 and the second filter box 31 can be conveniently fixed.

Furthermore, one side of the first filter box 2 is provided with an air inlet pipe 1, and one side of the second filter box 31 is provided with an air outlet pipe 5, so that air inlet and air outlet are facilitated.

Furthermore, the inside of the first filter box 2 and the inside of the second filter box 31 are sequentially provided with an activated carbon filter plate 15 and a bamboo charcoal filter plate 16, so that impurities in the air can be conveniently filtered.

Furthermore, a diaphragm 10 is arranged inside the diaphragm box 8 and on the top of the transmission rod 18, a piston block 19 is fixedly connected to the outer side of the transmission rod 18, and the piston block 19 is slidably connected with the expansion valve body 3, so that the transmission rod 18 is driven to move.

Further, the inside fixedly connected with fixed plate 17 of expansion valve body 3, the inside of fixed plate 17 is equipped with the toper groove that uses with toper piece 11 cooperation, is convenient for control flow.

Furthermore, the outer side of the expansion valve body 3 is provided with a connecting pipe 9, and the inside of the expansion valve body 3 is provided with a sealing gasket 30, so that the balance of the diaphragm 10 can be adjusted conveniently, and the air tightness of the device can be kept good.

Further, the inside of expansion valve body 3 is equipped with spacing groove 26, and the inside sliding connection of spacing groove 26 has slide bar 29, and the outside fixedly connected with stopper 28 of slide bar 29, the outside of slide bar 29 and the one side cover that is located stopper 28 are equipped with No. three springs 27, and one side fixedly connected with sliding block 23 of slide bar 29, the inside of latch segment 21 is equipped with chute 22 that uses with sliding block 23 cooperation, the dismantlement of No. one filter cartridge 2 and No. two filter cartridges 31 of being convenient for.

Specifically, when the utility model is used, the first filter cartridge 2 and the second filter cartridge 31 are pushed into the expansion valve body 3, in the pushing process, the locking block 21 is extruded to enter the fixing groove 24, the second spring 25 is compressed, and along with the continuous pushing of the box body, the second spring 25 drives the locking block 21 to move into the locking groove 20 due to elasticity, so as to fix the box body, and when the box body is disassembled, the sliding rod 29 is pulled, so that the sliding rod 29 drives the sliding block 23 to slide along the chute 22, thereby driving the locking block 21 to be separated from the locking groove 20, and the disassembly can be carried out; when gas forward flows, the temperature measuring tube 6 transmits temperature to drive the diaphragm 10 to move downwards, the diaphragm 10 moves to drive the transmission rod 18 to move, the transmission rod 18 moves to drive the conical block 11 to move, so that the conical groove is exposed, gas is conveyed through the conical groove after being filtered, the first spring 13 is compressed, gas at the outlet of the evaporator enters the inside of the diaphragm box 8 through the connecting tube 9, so that the transmitted return gas pressure at the outlet of the evaporator is balanced with the acting force above the spring elastic force and the diaphragm 10, when gas flows reversely, the gas extrudes the lifting plate 12, the lifting plate 12 moves to drive the conical block 11 to move, so that the conical groove is exposed, and gas can be conveyed after being filtered.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, are used for indicating the orientation or position based on the orientation or position shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, or they may be connected through the inside of two elements or through the interaction of two elements, unless otherwise specifically limited, and those skilled in the art will understand that the terms specifically mean the inside of the two elements or through the interaction of the two elements.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a two-way thermal expansion valve of high gas tightness, includes No. one filter cartridge (2), expansion valve body (3) and No. two filter cartridges (31), its characterized in that: the bottom of the expansion valve body (3) is in threaded connection with a connecting block (4), the top of the connecting block (4) is fixedly connected with a connecting plate (14), the inside of the expansion valve body (3) is in sliding connection with a lifting plate (12), a first spring (13) is arranged between the lifting plate (12) and the connecting plate (14), the top of the lifting plate (12) is fixedly connected with a conical block (11), the top of the conical block (11) is fixedly connected with a transmission rod (18), the transmission rod (18) is in sliding connection with the expansion valve body (3), the top of the expansion valve body (3) is fixedly connected with a diaphragm capsule (8), the outer side of the diaphragm capsule (8) is provided with a capillary tube (7), one end of the capillary tube (7) is fixedly connected with a temperature measuring tube (6), a fixing groove (24) is arranged inside the expansion valve body (3), and the inside of the fixing groove (24) is in sliding connection with a locking block (21), be equipped with No. two spring (25) between latch segment (21) and fixed slot (24), the bottom of a filter cartridge (2) and the bottom of No. two filter cartridges (31) all are equipped with and use with latch segment (21) cooperation locking groove (20).

2. A high-airtightness bidirectional thermal expansion valve according to claim 1, wherein: an air inlet pipe (1) is arranged on one side of the first filter box (2), and an air outlet pipe (5) is arranged on one side of the second filter box (31).

3. A high-airtightness bidirectional thermal expansion valve according to claim 1, wherein: the interior of the first filter box (2) and the interior of the second filter box (31) are sequentially provided with an activated carbon filter plate (15) and a bamboo charcoal filter plate (16).

4. A high-airtightness bidirectional thermal expansion valve according to claim 1, wherein: the expansion valve is characterized in that a diaphragm (10) is arranged in the diaphragm box (8) and at the top of the transmission rod (18), a piston block (19) is fixedly connected to the outer side of the transmission rod (18), and the piston block (19) is in sliding connection with the expansion valve body (3).

5. A high-airtightness bidirectional thermal expansion valve according to claim 1, wherein: the expansion valve is characterized in that a fixing plate (17) is fixedly connected to the inside of the expansion valve body (3), and a conical groove matched with the conical block (11) is formed in the fixing plate (17).

6. A high-airtightness bidirectional thermal expansion valve according to claim 1, wherein: the outer side of the expansion valve body (3) is provided with a connecting pipe (9), and a sealing gasket (30) is arranged inside the expansion valve body (3).

7. A high-airtightness bidirectional thermal expansion valve according to claim 1, wherein: the inside of expansion valve body (3) is equipped with spacing groove (26), the inside sliding connection of spacing groove (26) has slide bar (29), the outside fixedly connected with stopper (28) of slide bar (29), the outside of slide bar (29) and the one side cover that is located stopper (28) are equipped with No. three spring (27), one side fixedly connected with sliding block (23) of slide bar (29), the inside of latch segment (21) is equipped with chute (22) that uses with sliding block (23) cooperation.