CN211204525U

CN211204525U - Pressure adjustable compressor expansion valve

Info

Publication number: CN211204525U
Application number: CN201922130477.2U
Authority: CN
Inventors: 左声银
Original assignee: Jiangxi Nuobao Electric Appliance Co ltd
Current assignee: Jiangxi Nuobao Electric Appliance Co ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-08-07
Anticipated expiration: 2029-12-03

Abstract

The utility model discloses a pressure adjustable compressor expansion valve, which comprises a valve body, the treatment trough has been seted up in the valve body, movable mounting has the piston in the treatment trough, valve body upper end fixed mounting has the end cover, be equipped with pressure regulating device between end cover and the piston. Has the advantages that: the utility model discloses installed pressure adjustment device between end cover and piston, utilized the rotation threaded rod to make the interval between first fly leaf and the second fly leaf diminish, the spring is compressed, the elasticity increase that the spring contains for inside needs bigger atmospheric pressure comes to come piston jack-up, with the inside pressure demand of this control.

Description

Pressure adjustable compressor expansion valve

Technical Field

The utility model relates to an expansion valve technical field especially relates to a pressure adjustable compressor expansion valve.

Background

An expansion valve is an important component in a refrigeration system and is typically mounted between the reservoir and the evaporator.

When the existing expansion valve is used, the size of the air outlet is controlled by utilizing pressure difference so as to dynamically control the refrigeration effect, but the internal pressure cannot be controlled from the outside, so that the internal pressure is constant, and the refrigeration effect is uncontrollable.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the internal pressure is difficult to adjust in the prior art, and providing a pressure adjustable compressor expansion valve.

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

the utility model provides a pressure adjustable compressor expansion valve, includes the valve body, set up the treatment trough in the valve body, movable mounting has the piston in the treatment trough, valve body upper end fixed mounting has the end cover, be equipped with pressure adjusting device between end cover and the piston.

In the pressure-adjustable compressor expansion valve, an air inlet pipe is fixedly inserted into the side wall of the valve body, an air outlet pipe is fixedly mounted at the bottom end of the valve body, an air outlet hole is formed in the bottom wall of the valve body, a connecting rod is fixedly mounted on the outer wall of the piston, which is close to one side of the air outlet hole, a sealing plug is fixedly mounted at one end of the connecting rod, which is close to the air outlet hole, and the sealing plug and the air outlet hole are.

In the above pressure-adjustable compressor expansion valve, the sealing plug is conical.

In foretell pressure adjustable compressor expansion valve, pressure adjusting device includes that the end cover is close to the mounting groove of seting up on the outer wall of treatment trough one side, movable mounting has first fly leaf in the mounting groove, movable mounting has the second fly leaf in the mounting groove, common fixed mounting has the spring between second fly leaf and the first fly leaf are close to one side outer wall mutually, common fixed mounting has the movable rod between one side outer wall with the piston is close to mutually, fixed mounting has the bearing on the outer wall of valve body one side is kept away from to the end cover, and the bearing runs through the outer wall of end cover and extends to the mounting groove in, fixed mounting has the threaded rod on the inner ring of bearing, fixed mounting has the screwed pipe on the second fly leaf is close to bearing one side outer wall, thread engagement between threaded rod and the screwed pipe, and.

In foretell pressure adjustable compressor expansion valve, symmetry fixed mounting has two first slide bars on the outer wall of first fly leaf both sides, first spout has been seted up to the symmetry on the inner wall of mounting groove both sides, mutually support between first slide bar and the first spout, and slidable mounting.

In the above pressure-adjustable compressor expansion valve, two second sliding rods are symmetrically and fixedly mounted on the outer walls of two sides of the second movable plate, two second sliding grooves are symmetrically formed in the inner walls of two sides of the mounting groove, and the second sliding rods are matched with the second sliding grooves and are slidably mounted.

Compared with the prior art, the utility model discloses the advantage lies in:

the utility model discloses installed pressure adjustment device between end cover and piston, utilized the rotation threaded rod to make the interval between first fly leaf and the second fly leaf diminish, the spring is compressed, the elasticity increase that the spring contains for inside needs bigger atmospheric pressure comes to come piston jack-up, with the inside pressure demand of this control.

Drawings

Fig. 1 is a front view of a pressure-adjustable compressor expansion valve according to the present invention;

fig. 2 is an enlarged view of a portion a of the structure of the pressure adjustable compressor expansion valve according to the present invention;

fig. 3 is an enlarged view of a part B structure in a pressure-adjustable compressor expansion valve according to the present invention.

In the figure: the device comprises a valve body 1, a processing groove 2, an air inlet pipe 3, an air outlet pipe 4, an end cover 5, an air outlet hole 6, a piston 7, a connecting rod 8, a sealing plug 9, a movable rod 10, a first movable plate 11, a first sliding rod 12, a first sliding groove 13, a second movable plate 14, a second sliding rod 15, a second sliding groove 16, a spring 17, a threaded pipe 18, a threaded rod 19 and a bearing 20.

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.

Referring to fig. 1-3, a pressure-adjustable compressor expansion valve comprises a valve body 1, a processing tank 2 is arranged in the valve body 1, a piston 7 is movably arranged in the processing tank 2, an air inlet pipe 3 is fixedly inserted on the side wall of the valve body 1, an air outlet pipe 4 is fixedly arranged at the bottom end of the valve body 1, an air outlet hole 6 is arranged on the bottom wall of the valve body 1, a connecting rod 8 is fixedly arranged on the outer wall of the piston 7 close to one side of the air outlet hole 6, a sealing plug 9 is fixedly arranged at one end of the connecting rod 8 close to the air outlet hole 6, the sealing plug 9 is conical, the sealing plug 9 and the air outlet hole 6 are mutually matched, an end cover 5 is fixedly arranged at the upper end of the valve body 1, a pressure adjusting device is arranged between the end cover 5 and the piston 7, the pressure adjusting device comprises an installation groove arranged on the outer wall, the inner walls of two sides of the mounting groove are symmetrically provided with first sliding grooves 13, the first sliding rod 12 and the first sliding grooves 13 are matched with each other and are slidably mounted, a second movable plate 14 is movably mounted in the mounting groove, two second sliding rods 15 are symmetrically and fixedly mounted on the outer walls of two sides of the second movable plate 14, two second sliding grooves 16 are symmetrically formed on the inner walls of two sides of the mounting groove, the second sliding rods 15 and the second sliding grooves 16 are matched with each other and are slidably mounted, a spring 17 is fixedly mounted between the outer walls of one side, close to the second movable plate 14, of the second movable plate 14 and the outer wall of one side, close to the first movable plate 11, of the first movable plate 11 and the outer wall of one side, close to the piston 7, of the first movable plate 11 and the outer wall of one side, a bearing 20 is fixedly mounted on the outer wall of one side, far away from the valve body 1, of the end cover 5, the bearing 20, the threaded rod 19 is engaged with the threaded pipe 18 and is installed in a threaded manner, and it is noted that, by rotating the threaded rod 19, the distance between the first movable plate 11 and the second movable plate 14 is reduced, the spring 17 is compressed, the elastic force contained in the spring 17 is increased, so that a greater air pressure is required inside to jack up the piston 7, thereby controlling the pressure requirement inside.

Further, unless otherwise specifically stated or limited, the above-described fixed connection is to be understood in a broad sense, and may be, for example, welded, glued, or integrally formed as is conventional in the art.

The utility model discloses the theory of operation: the air inlet pipe 3 enters air, the internal pressure is increased, the piston 7 is jacked up, the connecting rod 8 is driven to pull up the sealing plug 9, and the air outlet 6 is opened for ventilation.

When the distance between the first movable plate 11 and the second movable plate 14 becomes smaller and the elastic force of the spring 17 increases, a greater pressure is required in the processing tank 2 to lift the piston 7.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a pressure adjustable compressor expansion valve, includes valve body (1), its characterized in that, set up in valve body (1) treatment tank (2), movable mounting has piston (7) in treatment tank (2), valve body (1) upper end fixed mounting has end cover (5), be equipped with pressure adjustment device between end cover (5) and piston (7), pressure adjustment device includes that end cover (5) are close to the mounting groove of seting up on the outer wall of treatment tank (2) one side, movable mounting has first fly leaf (11) in the mounting groove, movable mounting has second fly leaf (14) in the mounting groove, second fly leaf (14) and first fly leaf (11) are close to common fixed mounting between one side outer wall and have spring (17) mutually, common fixed mounting has movable rod (10) between first fly leaf (11) and piston (7) are close to one side outer wall mutually, the end cover (5) is far away from the outer wall of one side of the valve body (1) and is fixedly provided with a bearing (20), the bearing (20) penetrates through the outer wall of the end cover (5) and extends into the mounting groove, a threaded rod (19) is fixedly arranged on an inner ring of the bearing (20), a second movable plate (14) is close to the outer wall of one side of the bearing (20) and is fixedly provided with a threaded pipe (18), the threaded rod (19) is in threaded engagement with the threaded pipe (18), the first movable plate (11) is symmetrically and fixedly provided with two first sliding rods (12) on the outer walls of two sides of the first movable plate (11), first sliding grooves (13) are symmetrically formed in the inner walls of two sides of the mounting groove, the first sliding rods (12) are matched with the first sliding grooves (13) and are slidably mounted, two second sliding rods (15) are symmetrically and fixedly arranged on the outer, two second sliding grooves (16) are symmetrically formed in the inner walls of the two sides of the mounting groove, and the second sliding rods (15) are matched with the second sliding grooves (16) and are mounted in a sliding mode.

2. The pressure-adjustable compressor expansion valve according to claim 1, wherein an air inlet pipe (3) is fixedly inserted into a side wall of the valve body (1), an air outlet pipe (4) is fixedly installed at a bottom end of the valve body (1), an air outlet hole (6) is formed in a bottom wall of the valve body (1), a connecting rod (8) is fixedly installed on an outer wall of one side, close to the air outlet hole (6), of the piston (7), a sealing plug (9) is fixedly installed at one end, close to the air outlet hole (6), of the connecting rod (8), and the sealing plug (9) and the air outlet hole (6) are matched with each other.

3. A pressure-adjustable compressor expansion valve according to claim 2, characterized in that the sealing plug (9) is conical.