Leakage-proof valve for refrigeration equipment

Abstract

The utility model relates to the technical field of valves, in particular to a leakage-proof valve for refrigeration equipment, which comprises a valve body, a switch mechanism for controlling the opening and closing of an inner cavity of the valve body, and a limiting mechanism for limiting the switch mechanism, the valve body is composed of a transversely-arranged first valve shell and a vertically-arranged second valve shell. Inner cavities of the first valve shell and the second valve shell are communicated with each other. The switching mechanism comprises a flow guide ring fixedly installed on the inner wall of the first valve shell, a sealing plate used for blocking or opening an inner cavity of the valve body and a driving assembly used for driving the sealing plate to move. According to the anti-leakage valve, the sealing plates are tightly attached to the adjacent flow guide rings, the inner cavity of the first valve body can be blocked, and due to the fact that the number of the sealing plates and the number of the flow guide rings are both two, the dual-blocking effect is achieved, the blocking effect is better, the sealing effect of the valve is guaranteed, and the anti-leakage effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to an anti-leakage valve for refrigeration equipment. Background Art

[0002] Valves are pipe accessories used to open and close pipelines, control flow direction, and adjust and control the parameters (temperature, pressure, and flow) of the conveying medium. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc. Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metals, and radioactive media. Valves are also divided into cast iron valves, cast steel valves, stainless steel valves, chrome-molybdenum steel valves, chrome-molybdenum-vanadium steel valves, duplex steel valves, plastic valves, non-standard custom valves, etc. according to their materials.

[0003] A valve structure is required in refrigeration equipment, but most existing valve devices are controlled by one-way valves, which cannot play a secondary blocking role on the inner cavity, and the blocking effect is not good. In addition, most of the existing valves do not have a limit structure. When the valve turntable rotates to a certain position, the turntable is prone to malfunction, affecting the use effect.

[0004] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Utility Model Content

[0005] The purpose of the utility model is to provide an anti-leakage valve for refrigeration equipment which can effectively solve the above technical problems.

[0006] In order to achieve the purpose of this utility model, the following technical solutions are adopted:

[0007] An anti-leakage valve for refrigeration equipment, comprising: a valve body, a switch mechanism for controlling the opening and closing of a cavity of the valve body, and a limit mechanism for limiting the position of the switch mechanism;

[0008] The valve body is composed of a horizontally arranged valve shell 1 and a vertically arranged valve shell 2 on the left side; the inner cavities of the valve shell 1 and the valve shell 2 are interconnected;

[0009] The switch mechanism comprises: a guide ring fixedly mounted on an inner wall of the valve housing, a sealing plate for blocking or opening the inner cavity of the valve body, and a driving component for driving the sealing plate to move;

[0010] The driving assembly includes: a threaded rod rotatably mounted on the two side walls of the valve housing, a turntable fixedly mounted on the top of the threaded rod, a threaded pipe threadedly connected to the threaded rod, a connecting plate fixedly mounted on the bottom end of the threaded pipe, a connecting block fixedly mounted on the bottom of the connecting plate, a linkage rod hingedly mounted between the connecting block and the sealing plate, and a guide member for guiding the connecting plate.

[0011] Furthermore, the guide member includes: a guide groove provided on the second inner wall of the valve housing, and a guide block fixedly mounted on the side wall of the connecting plate and sliding in the inner cavity of the guide groove.

[0012] Furthermore, the adjacent sealing plates and guide rings are arranged to fit each other.

[0013] Furthermore, the limiting mechanism includes: a circular plate fixedly sleeved on the outer edge of the threaded rod, a plug-in hole provided on the outer edge of the circular plate, and a plug-in component plugged into the inner cavity of the plug-in hole.

[0014] Furthermore, the connector includes: a fixed tube fixedly installed on the top of the valve housing, a movable rod installed on the side wall of the fixed tube, a movable block fixedly installed on one end of the movable rod, a movable plate fixedly installed on the other end of the movable rod, a clamping block fixedly installed on the side wall of the movable plate, and a linkage spring sleeved on the outer edge of the movable rod.

[0015] Furthermore, the plug holes are arranged in a circular array with the center of the top of the circular plate as the central axis.

[0016] Furthermore, one end of the linkage spring is fixedly mounted on the inner wall of the fixed tube, and the other end is fixedly mounted on the side wall of the movable plate.

[0017] Furthermore, flanges are fixedly mounted on the outer edge of the valve body near both ends.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model discloses a leakage-proof valve for refrigeration equipment. The inner cavity of a valve body can be blocked by tightly fitting a sealing plate with an adjacent guide ring. Since two sealing plates and two guide rings are provided, a double blocking effect is achieved, which makes the blocking effect better, thereby ensuring the sealing effect of the valve and achieving the leakage-proof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0021] Figure 1 The utility model is a three-dimensional schematic diagram of an anti-leakage valve for refrigeration equipment.

[0022] Figure 2 The utility model is a front view of an anti-leakage valve for refrigeration equipment.

[0023] Figure 3 The utility model is a leakage-proof valve for refrigeration equipment Figure 2 Enlarged view of point A in the middle.

[0024] Figure 4 The utility model is a three-dimensional schematic diagram of a guide ring component of an anti-leakage valve for refrigeration equipment.

[0025] Figure 5 The utility model is a cross-sectional schematic diagram of a guide ring component of a leakage-proof valve for refrigeration equipment.

[0026] In the figure: 1. valve body; 2. flange; 3. turntable; 4. threaded rod; 5. threaded pipe; 6. connecting plate; 7. connecting block; 8. linkage rod; 9. sealing plate; 10. guide ring; 11. guide block; 12. round plate; 13. fixed pipe; 14. movable block; 15. movable rod; 16. movable plate; 17. clamping block; 18. linkage spring. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below. Obviously, the described embodiments are partial embodiments of the utility model, rather than all embodiments.

[0028] In the description of the present utility model, it should be understood that the terms "center", "lateral", "longitudinal", "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present utility model. When a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a centered component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centered component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centered component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0029] like Figures 1 to 5 As shown, the utility model is a leakage-proof valve for refrigeration equipment, comprising: a valve body 1, a switch mechanism for controlling the opening and closing of the inner cavity of the valve body 1, and a limit mechanism for limiting the switch mechanism;

[0030] The valve body 1 is composed of a horizontally arranged valve shell 1 and a vertically arranged valve shell 2 on the left side; the inner cavities of the valve shell 1 and the valve shell 2 are interconnected;

[0031] The switch mechanism includes: a guide ring 10 fixedly mounted on an inner wall of the valve housing, a sealing plate 9 for blocking or opening the inner cavity of the valve body 1, two sealing plates 9 and two guide rings 10 are provided, the tops of the two sealing plates 9 are hingedly mounted on the inner wall of the valve body 1, and a driving component is provided between the adjacent sealing plates 9 and the guide rings 10 to drive the sealing plates 9 to move; the driving component includes: a threaded rod 4 rotatably mounted on two side walls of the valve housing, a turntable 3 fixedly mounted on the top of the threaded rod 4, a threaded pipe 5 threadedly connected to the threaded rod 4, and a threaded pipe 5 fixedly mounted on the bottom of the threaded pipe 5 The connecting plate 6 comprises a connecting block 7 fixedly mounted at the bottom of the connecting plate 6, a linkage rod 8 hingedly mounted between the connecting block 7 and the sealing plate 9, and a guide member for guiding the connecting plate 6; the guide member comprises: a guide groove provided on the second inner wall of the valve housing, a guide block 11 fixedly mounted on the side wall of the connecting plate 6 and sliding in the inner cavity of the guide groove; when the connecting plate 6 moves, the guide block 11 can be driven to slide in the inner cavity of the guide groove, thereby guiding the moving direction of the connecting plate 6, thereby guiding the moving direction of the threaded pipe 5, and preventing the threaded pipe 5 from rotating together with the threaded rod 4.

[0032] When it is necessary to block the inner cavity of the valve housing, the turntable 3 is rotated, and the turntable 3 drives the threaded rod 4 to rotate. Under the action of the threaded rod 4, the threaded tube 5 moves downward, and the connecting plate 6 is driven downward by the threaded tube 5, and the connecting block 7 is driven downward by the connecting plate 6, and the connecting rod 8 is driven downward by the connecting block 7, and the adjacent sealing plates 9 are driven to move to both sides by the two connecting rods 8, so that the sealing plates 9 and the adjacent guide rings 10 are tightly fitted, and the inner cavity of the valve body can be blocked at this time.

[0033] Furthermore, since two sealing plates 9 and two guide rings 10 are provided, a double blocking effect is achieved, which makes the blocking effect better, thereby ensuring the sealing effect of the valve and achieving the anti-leakage effect.

[0034] When it is necessary to open the inner cavity of the valve housing, the turntable 3 is rotated in the opposite direction to drive the threaded rod 4 to rotate in the opposite direction, thereby driving the threaded tube 5 to move upward, and the threaded tube 5 drives the connecting plate 6 to move upward, and the connecting plate 6 drives the connecting block 7 to move upward, and the connecting block 7 drives the two connecting rods 8 to move inward, and the connecting rod 8 drives the adjacent sealing plate 9 to flip inward, so that the sealing plate 9 is separated from the guide ring 10, and the blockage of the inner cavity of the valve housing is released.

[0035] The limiting mechanism includes: a circular plate 12 fixedly mounted on the outer edge of the threaded rod 4, a plug-in hole opened on the outer edge of the circular plate 12, the plug-in holes are arranged in a circular array with the center of the top of the circular plate 12 as the central axis, and a plug-in component plugged into the inner cavity of the plug-in hole; the plug-in component includes: a fixed tube 13 fixedly mounted on the top of the valve housing 2, a movable rod 15 installed on the side wall of the fixed tube 13, a movable block 14 fixedly mounted on one end of the movable rod 15, a movable plate 16 fixedly mounted on the other end of the movable rod 15, and a clamping block 17 fixedly mounted on the side wall of the movable plate 16, the clamping block 17 is plugged into the inner cavity of the adjacent plug-in hole, and is mounted on the outer edge of the movable rod 15, one end of the linkage spring 18 is fixedly mounted on the inner wall of the fixed tube 13, and the other end is fixedly mounted on the side wall of the movable plate 16.

[0036] When the switch mechanism is used, by pulling the movable block 14 to the left, the movable block 14 drives the movable rod 15 to move to the left, the movable rod 15 drives the movable plate 16 to move to the left, the movable plate 16 drives the clamping block 17 to move to the left, the clamping block 17 is separated from the adjacent plug hole, and can drive the linkage spring 18 to be compressed. At this time, the limiting mechanism has no limiting effect on the switch mechanism;

[0037] After the switch mechanism is used, the movable block 14 is released, and the movable plate 16 is reset by the elastic force of the linkage spring 18, and the clamping block 17 is reset by the movable plate 16, so that the clamping block 17 is plugged into the inner cavity of the adjacent plug-in hole, thereby limiting the switch mechanism, achieving the purpose of preventing the turntable 3 from malfunctioning and ensuring the stability of use.

[0038] Flanges 2 are fixedly mounted on the outer edges of the valve body 1 near both ends. The arrangement of the flanges 2 facilitates the connection of the valve body 1 with a pipeline.

[0039] Working principle: During use, when it is necessary to block the inner cavity of the valve housing, rotate the turntable 3, and the turntable 3 drives the threaded rod 4 to rotate. Under the action of the threaded rod 4, the threaded tube 5 moves downward, and the connecting plate 6 moves downward through the threaded tube 5, and the connecting block 7 moves downward through the connecting plate 6, and the connecting rod 8 moves downward through the connecting block 7, and the adjacent sealing plates 9 are driven to move to both sides through the two connecting rods 8, so that the sealing plates 9 and the adjacent guide rings 10 fit tightly, and the inner cavity of the valve body can be blocked at this time. Moreover, since there are two sealing plates 9 and two guide rings 10, a double blocking effect is achieved, which makes the blocking effect better, thereby ensuring the sealing effect of the valve and achieving the anti-leakage effect; when it is necessary to open the inner cavity of the valve housing, the turntable 3 is rotated in the opposite direction, which can drive the threaded rod 4 to rotate in the opposite direction, thereby driving the threaded tube 5 to move upward, and the threaded tube 5 drives the connecting plate 6 to move upward, and drives the connecting block 7 to move upward through the connecting plate 6, and drives the two connecting rods 8 to move inward through the connecting block 7, and drives the adjacent sealing plates 9 to flip inward through the connecting rod 8, thereby separating the sealing plates 9 from the guide ring 10, and at this time, the blockage of the inner cavity of the valve housing is released.

[0040] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0041] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A leak-proof valve for refrigeration equipment, characterized in that: include: A valve body, a switch mechanism for controlling the opening and closing of the inner cavity of the valve body, and a limiting mechanism for limiting the position of the switch mechanism; The valve body is composed of a transversely arranged valve shell 1 and a vertically arranged valve shell 2; the inner cavities of the valve shell 1 and the valve shell 2 are interconnected; The switch mechanism comprises: a guide ring fixedly mounted on an inner wall of the valve housing, a sealing plate for blocking or opening the inner cavity of the valve body, and a driving component for driving the sealing plate to move; The driving assembly includes: a threaded rod rotatably mounted on the two side walls of the valve housing, a turntable fixedly mounted on the top of the threaded rod, a threaded pipe threadedly connected to the threaded rod, a connecting plate fixedly mounted on the bottom end of the threaded pipe, a connecting block fixedly mounted on the bottom of the connecting plate, a linkage rod hingedly mounted between the connecting block and the sealing plate, and a guide member for guiding the connecting plate.

2. The anti-leakage valve for refrigeration equipment according to claim 1, characterized in that: The guide member comprises: a guide groove arranged on the second inner wall of the valve housing, and a guide block fixedly mounted on the side wall of the connecting plate and sliding in the inner cavity of the guide groove.

3. The anti-leakage valve for refrigeration equipment according to claim 1, characterized in that: The adjacent sealing plates and guide rings are arranged to fit each other.

4. The anti-leakage valve for refrigeration equipment according to claim 1, characterized in that: The limiting mechanism comprises: a circular plate fixedly sleeved on the outer edge of the threaded rod, a plug hole provided on the outer edge of the circular plate, and a plug-in component plugged into the inner cavity of the plug hole.

5. The anti-leakage valve for refrigeration equipment according to claim 4, characterized in that: The connector includes: a fixed tube fixedly installed on the top of the valve housing, a movable rod installed on the side wall of the fixed tube, a movable block fixedly installed on one end of the movable rod, a movable plate fixedly installed on the other end of the movable rod, a clamping block fixedly installed on the side wall of the movable plate, and a linkage spring sleeved on the outer edge of the movable rod.

6. The anti-leakage valve for refrigeration equipment according to claim 5, characterized in that: The plug holes are arranged in a circular array with the top center of the circular plate as the central axis.

7. The anti-leakage valve for refrigeration equipment according to claim 5, characterized in that: One end of the linkage spring is fixedly mounted on the inner wall of the fixed tube, and the other end is fixedly mounted on the side wall of the movable plate.

8. The anti-leakage valve for refrigeration equipment according to claim 1, characterized in that: Flanges are fixedly mounted on the outer edge of the valve body near both ends.

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