CN219220673U

CN219220673U - Shutdown anti-reversion mechanism of refrigeration compressor

Info

Publication number: CN219220673U
Application number: CN202222420466.XU
Authority: CN
Inventors: 熊诗祥; 朱玉林
Original assignee: Zhejiang Commercial Machinery Factory Co ltd
Current assignee: Zhejiang Commercial Machinery Factory Co ltd
Priority date: 2022-03-17
Filing date: 2022-09-13
Publication date: 2023-06-20
Anticipated expiration: 2032-09-13

Abstract

The utility model discloses a shutdown anti-reversion mechanism of a refrigeration compressor, which comprises a refrigeration compressor shell, wherein an exhaust port is arranged in the refrigeration compressor shell, a fixed seat is arranged in the exhaust port, and a movable cylinder is arranged in the fixed seat. When the refrigeration compressor is in normal use, the air flow pushes the movable cylinder to move upwards and drives the movable block to move in the movable groove, the movable block drives the compression spring to stretch, so that the air flow is discharged in a dispersed manner through a plurality of groups of air outlet holes on the outer side of the movable cylinder, when the refrigeration compressor is stopped, the movable cylinder is not pushed by the pushing force from the air outlet, at the moment, the movable cylinder is pushed to move downwards under the elastic action of the compression spring, and the movable cylinder synchronously descends and enables the cover plate and the fixed seat to be tightly closed mutually, thereby avoiding the backflow phenomenon of high-pressure air through automatic closing of the air outlet, reducing the damage to the refrigeration compressor, prolonging the service life of the refrigeration compressor and realizing the anti-reversion function of the refrigeration compressor.

Description

Shutdown anti-reversion mechanism of refrigeration compressor

Technical Field

The utility model relates to the technical field of refrigeration compressors, in particular to a shutdown anti-reversion mechanism of a refrigeration compressor.

Background

The refrigerating compressor is a core and a heart of the refrigerating system, the capacity and the characteristics of the refrigerating system are determined by the capacity and the characteristics of the compressor, the design and the matching of the refrigerating system are realized in a manner that the capacity of the compressor is embodied, the types of the compressors are various, and the refrigerating compressor can be divided into a fixed displacement compressor and a variable displacement compressor according to different working principles;

at the moment of stopping the refrigeration compressor, as the high-pressure passage and the low-pressure passage are still communicated, the high-pressure gas flows back to one side of the low-pressure gas to cause the reversion of the compressor, and the existing reversion prevention mechanism for stopping the refrigeration compressor is complex in operation and poor in protection, so that the refrigeration compressor is easily damaged when the high-pressure gas flows back, and the service life of the refrigeration compressor is further reduced.

Disclosure of Invention

The utility model aims to provide a shutdown anti-reversion mechanism of a refrigeration compressor, which aims to solve the problems of complex operation and poor protection of the anti-reversion mechanism in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a refrigeration compressor stops anti-reverse mechanism, includes the refrigeration compressor casing, the inside of refrigeration compressor casing is provided with the gas vent, and the internally mounted of gas vent has the fixing base, the internally mounted of fixing base has a movable section of thick bamboo, and the top of a movable section of thick bamboo installs the apron, the top of fixing base is provided with sealing mechanism, the inside both sides of fixing base all are provided with the movable groove, movable block is all installed to the both sides of a movable section of thick bamboo, and compression spring is all installed on the top of movable block, compression spring's top all is connected with the inner wall of movable groove.

When the technical scheme is used, the exhaust port can be automatically closed when the refrigerating compressor stops, so that the reflux phenomenon of high-pressure gas is avoided, the damage to the refrigerating compressor is reduced, and the service life of the refrigerating compressor is prolonged.

Preferably, the bottom end of the fixed seat is provided with a first air gathering port, and the bottom end of the movable cylinder is provided with a second air gathering port. The first air gathering port and the second air gathering port can play a role in centralizing air flow, so that the movable cylinder can be pushed to move.

Preferably, guide rods are arranged in the movable grooves, and vertically penetrate through the movable blocks. The stability of the movement of the movable block can be improved under the action of the guide rod.

Preferably, the width of the movable groove is equal to the width of the movable block, and the movable groove and the movable block are symmetrically arranged relative to the central axis of the movable cylinder.

Preferably, the sealing mechanism comprises a sealing groove, the sealing groove is arranged at the top end of the fixing seat, a sealing pad is arranged at the top end of the sealing groove, a sealing ring is arranged at the top end of the sealing pad, and the top end of the sealing ring is connected with the bottom end of the cover plate. The sealing performance of the closure between the cover plate and the fixing seat can be improved through the effect of the sealing mechanism.

Preferably, the two ends of the movable cylinder are uniformly provided with air outlet holes, and the cross sections of the air outlet holes are circular.

Compared with the prior art, the utility model has the beneficial effects that: the shutdown anti-reversion mechanism of the refrigeration compressor not only realizes the anti-reversion function, but also realizes the function of convenient sealing;

(1) When the refrigeration compressor is in normal use, the air flow pushes the movable cylinder to move upwards and drives the movable block to move in the movable groove, the movable block drives the compression spring to stretch out and draw back, so that the air flow is discharged in a dispersed manner through a plurality of groups of air outlet holes on the outer side of the movable cylinder, when the refrigeration compressor is stopped, the movable cylinder is not pushed by the pushing force from the air outlet, at the moment, the movable cylinder is pushed to move downwards under the elastic action of the compression spring, the movable cylinder is synchronously lowered and the cover plate and the fixed seat are tightly closed mutually, thereby the backflow phenomenon of high-pressure air can be avoided through automatic closing of the air outlet, the damage to the refrigeration compressor is reduced, the service life of the refrigeration compressor is prolonged, and the anti-reversion function of the refrigeration compressor is realized;

(2) Through being provided with sealing mechanism, when the apron received compression spring's pulling force rebound in the use, apron closely pastes and drives the sealing ring and remove with the fixing base, and sealing ring and sealing groove mutually clamped are in order to strengthen the closeness of closure between apron and the fixing base under the effect of sealed pad to can effectually improve the gas tightness of gas vent, in order to avoid gaseous backward flow.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic cross-sectional elevation view of the present utility model;

FIG. 2 is a schematic top view of the present utility model;

FIG. 3 is a schematic view of the structure of FIG. 1A according to the present utility model;

FIG. 4 is a schematic view of a three-dimensional structure of a movable barrel according to the present utility model;

fig. 5 is a schematic view of the exhaust state structure of the present utility model.

Reference numerals in the drawings illustrate: 1. a refrigeration compressor housing; 2. a fixing seat; 3. a first gas gathering port; 4. a movable cylinder; 5. a second air-condensing port; 6. an exhaust port; 7. a movable block; 8. a movable groove; 9. a compression spring; 10. a guide rod; 11. a cover plate; 12. an air outlet hole; 13. a sealing mechanism; 1301. a seal ring; 1302. a sealing gasket; 1303. and (5) sealing the groove.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by one of ordinary skill in the art without inventive faculty, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.

Referring to fig. 1-5, an embodiment of the present utility model is provided: the shutdown anti-reversion mechanism of the refrigeration compressor comprises a refrigeration compressor shell 1, wherein an exhaust port 6 is arranged in the refrigeration compressor shell 1, and a fixed seat 2 is arranged in the exhaust port 6;

the bottom end of the fixed seat 2 is provided with a first air gathering port 3, and the bottom end of the movable cylinder 4 is provided with a second air gathering port 5;

specifically, as shown in fig. 1, when in use, the first air gathering port 3 and the second air gathering port 5 can play a role in centralizing air flow, so that the movable cylinder 4 can be pushed to move;

a movable cylinder 4 is arranged in the fixed seat 2;

the two ends of the movable cylinder 4 are uniformly provided with air outlet holes 12, and the sections of the air outlet holes 12 are circular;

specifically, as shown in fig. 1, when in use, the air flow can be conveniently discharged through the air outlet hole 12;

the top end of the movable cylinder 4 is provided with a cover plate 11, and the top end of the fixed seat 2 is provided with a sealing mechanism 13;

the sealing mechanism 13 comprises a sealing groove 1303, the sealing groove 1303 is arranged at the top end of the fixed seat 2, a sealing pad 1302 is arranged at the top end of the sealing groove 1303, a sealing ring 1301 is arranged at the top end of the sealing pad 1302, and the top end of the sealing ring 1301 is connected with the bottom end of the cover plate 11;

specifically, as shown in fig. 3, when in use, by providing the sealing mechanism 13, when the cover plate 11 is rebounded by the tension of the compression spring 9 in the use process, the cover plate 11 is tightly adhered to the fixed seat 2 and drives the sealing ring 1301 to move, the sealing ring 1301 and the sealing groove 1303 are mutually clamped and under the action of the sealing gasket 1302 to enhance the closing tightness between the cover plate 11 and the fixed seat 2, so that the air tightness of the exhaust port 6 can be effectively improved to avoid the air backflow;

the two sides of the inside of the fixed seat 2 are provided with movable grooves 8;

guide rods 10 are arranged in the movable grooves 8, and the guide rods 10 vertically penetrate through the movable blocks 7;

specifically, as shown in fig. 1, when in use, the guiding and limiting functions of the movable block 7 can be realized through the action of the guiding rod 10;

the width of the movable groove 8 is equal to the width of the movable block 7, and the movable groove 8 and the movable block 7 are symmetrically arranged relative to the central axis of the movable cylinder 4;

specifically, as shown in fig. 1, when in use, the width of the movable groove 8 is equal to the width of the movable block 7, so that the stability of the movable cylinder 4 during movement can be improved;

the movable block 7 is installed on both sides of the movable cylinder 4, the compression spring 9 is installed on the top end of the movable block 7, and the top end of the compression spring 9 is connected with the inner wall of the movable groove 8.

Working principle: when the refrigerating compressor is in use, firstly, when the refrigerating compressor is in normal use, the air flow pushes the movable cylinder 4 to move upwards and drives the movable block 7 to extrude the compression spring 9, so that the air flow is dispersed and discharged through a plurality of groups of air outlet holes 12 at the outer side of the movable cylinder 4, when the refrigerating compressor is stopped, the movable cylinder 4 is not pushed by the pushing force from the air outlet 6, at the moment, the movable cylinder 4 is pushed to move downwards under the elastic action of the compression spring 9, the movable cylinder 4 is synchronously lowered and the cover plate 11 and the fixed seat 2 are tightly closed mutually, and therefore, the backflow phenomenon of high-pressure air can be avoided through automatic closing of the air outlet 6, and the anti-reversion function of the refrigerating compressor is realized;

secondly, when apron 11 receives compression spring 9's pulling force resilience, apron 11 closely pastes and drives sealing ring 1301 and remove with fixing base 2, and sealing ring 1301 and sealing groove 1303 mutually block and with the effect of reinforcing apron 11 and fixing base 2 between closed compactness under sealed 1302 to can effectually improve the gas tightness of gas vent 6, in order to avoid gaseous backward flow.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present utility model without undue burden.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. The utility model provides a refrigeration compressor stops anti-reverse mechanism, includes refrigeration compressor casing (1), its characterized in that: the inside of refrigeration compressor casing (1) is provided with gas vent (6), and the internally mounted of gas vent (6) has fixing base (2), the internally mounted of fixing base (2) has movable section of thick bamboo (4), and apron (11) are installed on the top of movable section of thick bamboo (4), the top of fixing base (2) is provided with sealing mechanism (13), inside both sides of fixing base (2) all are provided with movable groove (8), movable block (7) are all installed to the both sides of movable section of thick bamboo (4), and compression spring (9) are all installed on the top of movable block (7), the top of compression spring (9) all is connected with the inner wall of movable groove (8).

2. The refrigerant compressor shutdown anti-reverse mechanism of claim 1, wherein: the bottom of fixing base (2) is provided with first gas gathering mouth (3), the bottom of movable section of thick bamboo (4) is provided with second gas gathering mouth (5).

3. The refrigerant compressor shutdown anti-reverse mechanism of claim 1, wherein: guide rods (10) are arranged in the movable grooves (8), and the guide rods (10) vertically penetrate through the movable blocks (7).

4. The refrigerant compressor shutdown anti-reverse mechanism of claim 1, wherein: the width of the movable groove (8) is equal to the width of the movable block (7), and the movable groove (8) and the movable block (7) are symmetrically arranged relative to the central axis of the movable cylinder (4).

5. The refrigerant compressor shutdown anti-reverse mechanism of claim 1, wherein: sealing mechanism (13) are including seal groove (1303), and seal groove (1303) set up the top at fixing base (2), sealed pad (1302) are installed on the top of seal groove (1303), and seal ring (1301) are installed on the top of sealed pad (1302), the top of seal ring (1301) is connected with the bottom of apron (11).

6. The refrigerant compressor shutdown anti-reverse mechanism of claim 1, wherein: the two ends of the movable cylinder (4) are uniformly provided with air outlet holes (12), and the sections of the air outlet holes (12) are circular.