Protection device of automatic exhaust valve

Abstract

The utility model discloses a protection device of an automatic exhaust valve, and relates to the technical field of automatic exhaust valves, the protection device comprises a valve body, an end cover body and a limiting assembly, the upper end of the valve body is provided with a thread groove, two sides of the inner wall of the valve body are provided with clamping grooves, the bottom of the end cover body is fixedly connected with a fixing sleeve, and the end cover body is fixedly connected with the limiting assembly. Threaded lines are arranged on the outer wall of the fixing sleeve, the limiting assembly comprises clamping blocks, the clamping blocks are arranged at the two ends of the fixing sleeve, a sliding face is arranged at the bottom of one end of each clamping block, and one end of each clamping block is fixedly connected with a reset spring. The fixing sleeve is screwed into the threaded groove, the sliding face rubs with the edge of the upper end of the valve body in the screwing-in process, the clamping block moves under the friction resistance and drives the reset spring to be compressed, when the fixing sleeve is completely screwed into the threaded groove, the reset spring drives the clamping block to do reset motion, the clamping block is clamped in the clamping groove, and therefore the valve body is clamped in the clamping groove. Therefore, the end cover body is limited, and good stability is provided.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic exhaust valves, and particularly relates to a protection device for an automatic exhaust valve. Background Technique

[0002] An automatic exhaust valve is a device used for exhausting air during the operation of a heating ventilation and air conditioning (HVAC) system. During the operation of the HVAC system, various adverse effects caused by gases such as hydrogen and oxygen released when water is heated can damage the system and reduce the thermal effect. If these gases cannot be discharged in time, many adverse consequences will occur. Currently, the valve body and end cover of an automatic exhaust valve are usually connected together by threads, and this connection method is prone to loosening, resulting in the end cover falling off, lacking stability and the effect of protecting the end cover, thus causing the exhaust valve to lose its function. Content of the Utility Model

[0003] The utility model provides a protection device for an automatic exhaust valve to solve the problems raised in the above background technique.

[0004] To solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A protection device for an automatic exhaust valve includes a valve body main body, an end cover main body, and a limiting component. A threaded groove is opened at the upper end of the valve body main body, and clamping grooves are opened on both sides of the inner wall of the valve body main body. A fixing sleeve is fixedly connected to the bottom of the end cover main body, and thread patterns are provided on the outer wall of the fixing sleeve. The limiting component includes clamping blocks, the clamping blocks are arranged at both ends of the fixing sleeve, a sliding surface is provided at the bottom of one end of the clamping block, and a return spring is fixedly connected to one end of the clamping block.

[0006] The further improvement of the technical solution of the utility model lies in that: the thread patterns are adapted to the threaded groove, and the end cover main body is threadedly engaged with the upper end of the valve body main body through the thread patterns and the threaded groove.

[0007] Adopting the above technical solution, the end cover main body in this solution is threadedly engaged with the valve body main body through the thread patterns and the threaded groove.

[0008] The further improvement of the technical solution of the utility model lies in that: movable grooves are opened at both ends of the fixing sleeve, the clamping blocks are movably connected to the inside of the movable grooves, and the end of the return spring away from the clamping block is fixedly connected to the inner wall of the movable groove.

[0009] Adopting the above technical solution, the return spring in this solution can drive the clamping blocks to perform a reset movement, so that the clamping blocks are clamped inside the clamping grooves.

[0010] A further improvement of the technical solution of the utility model is that: the upper and lower ends of the movable groove are provided with limiting grooves, the upper and lower ends of the clamping block are fixedly connected to the limiting blocks, and the limiting blocks and the limiting grooves are matched.

[0011] A further improvement of the technical solution of the utility model is that: the limit block is slidably connected to the inside of the limit groove, and the clamping block is slidably connected to the inside of the movable groove through the limit block and the limit groove.

[0012] By adopting the above technical solution, the limiting block and the limiting groove in the solution can limit the clamping block, so that the clamping block can slide linearly inside the movable groove and the clamping block will not fall out of the movable groove.

[0013] A further improvement of the technical solution of the utility model is that: an active cavity is opened at the upper end of the active groove, and a connecting rod is fixedly connected to the upper end of the limit block at the upper end of the clamping block, the connecting rod is adapted to the active cavity, and the connecting rod is slidably connected to the active cavity.

[0014] By adopting the above technical solution, the connecting rod in the solution can slide inside the movable cavity.

[0015] A further improvement of the technical solution of the utility model is that a through slot is provided on one side of the upper end of the movable cavity, the through slot penetrates through the outer wall of the end cover body, and an extension rod is fixedly connected to one side of the upper end of the connecting rod.

[0016] A further improvement of the technical solution of the utility model is that: the extension rod is adapted to the through slot, the extension rod is slidably connected to the inside of the through slot, and a pressing block is fixedly connected to one end of the extension rod away from the connecting rod.

[0017] By adopting the above technical solution, the extension rod in the solution can slide inside the through groove. By pressing the button block, the extension rod can be driven to slide and the connecting rod can be driven to drive the card block to slide, so that the card block is disengaged from the card slot, causing looseness between the end cover body and the valve body, thereby facilitating the separation of the end cover body and the valve body, and facilitating their disassembly, providing convenience for the staff.

[0018] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0019] 1. The utility model provides a protective device for an automatic exhaust valve. By screwing a fixing sleeve into a threaded groove, a sliding surface will rub against an edge of an upper end of a valve body during the screwing process, so that a clamping block moves under the resistance of friction and drives a reset spring to be compressed. When the fixing sleeve is completely screwed into the threaded groove, the reset spring drives the clamping block to perform a reset movement, so that the clamping block is clamped in the inside of the clamping groove, thereby limiting the end cover body and providing good stability.

[0020] 2. The present utility model provides a protection device for an automatic exhaust valve. By pressing the pressing block, the extension rod can be driven to slide, and the connecting rod can be driven to drive the clamping block to slide, so that the clamping block disengages from the clamping groove, causing looseness between the end cover body and the valve body, and facilitating the separation of the end cover body and the valve body for convenient disassembly, providing convenience for the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the front view of the protection device for the automatic exhaust valve according to the embodiment of the present utility model;

[0022] Figure 2 is the structural diagram of the end cover body of the protection device for the automatic exhaust valve according to the embodiment of the present utility model;

[0023] Figure 3 is the internal structural diagram of the end cover body of the protection device for the automatic exhaust valve according to the embodiment of the present utility model;

[0024] Figure 4 is the protection device for the automatic exhaust valve according to the embodiment of the present utility model Figure 3 enlarged structural diagram at position A;

[0025] Figure 5 is the structural diagram of the valve body of the protection device for the automatic exhaust valve according to the embodiment of the present utility model.

[0026] In the figure: 1. Valve body; 101. Thread groove; 102. Clamping groove; 2. End cover body; 201. Fixed sleeve; 202. Thread pattern; 203. Activity groove; 204. Limit groove; 205. Activity cavity; 3. Limit component; 301. Clamping block; 302. Sliding surface; 303. Limit block; 304. Return spring; 305. Connecting rod; 306. Extension rod; 307. Pressing block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] The following further describes the present utility model in detail with reference to the embodiments:

[0029] Embodiment 1

[0030] As Figures 1-5As shown, the utility model provides a protective device for an automatic exhaust valve, including a valve body 1, an end cover body 2, and a limit assembly 3. A threaded groove 101 is provided at the upper end of the valve body 1, and clamping grooves 102 are provided on both sides of the inner wall of the valve body 1. A fixing sleeve 201 is fixedly connected to the bottom of the end cover body 2, and a threaded pattern 202 is provided on the outer wall of the fixing sleeve 201. The limit assembly 3 includes a clamping block 301, which is arranged at both ends of the fixing sleeve 201. A sliding surface 302 is provided at the bottom of one end of the clamping block 301, and a reset spring 304 is fixedly connected to one end of the clamping block 301.

[0031] In this embodiment, by screwing the fixing sleeve 201 into the threaded groove 101, the sliding surface 302 of the block 301 will rub against the edge of the upper end of the valve body 1 during the screwing process, so that the block 301 moves under the resistance of friction and drives the reset spring 304 to be compressed. When the fixing sleeve 201 is completely screwed into the threaded groove 101, the reset spring 304 will drive the block 301 to perform a reset movement, so that the block 301 is clamped in the inside of the slot 102, thereby limiting the end cover body 2 and providing good stability.

[0032] Example 2

[0033] like Figures 1-5 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the thread pattern 202 and the thread groove 101 are adapted to each other, the end cover body 2 is threadedly engaged with the upper end of the valve body 1 through the thread pattern 202 and the thread groove 101, movable grooves 203 are provided at both ends of the fixed sleeve 201, the clamping block 301 is movably connected to the inside of the movable groove 203, one end of the return spring 304 away from the clamping block 301 is fixedly connected to the inner wall of the movable groove 203, the upper and lower ends of the movable groove 203 are provided with limiting grooves 204, the upper and lower ends of the clamping block 301 are fixedly connected to the limiting block 303, the limiting block 303 and the limiting groove 204 are adapted to each other, the limiting block 303 is slidably connected to the inside of the limiting groove 204, and the clamping block 301 is slidably connected to the inside of the movable groove 203 through the limiting block 303 and the limiting groove 204.

[0034] In this embodiment, the end cover body 2 is threadably engaged with the valve body 1 through the threaded pattern 202 and the threaded groove 101. The reset spring 304 can drive the block 301 to perform a reset movement, so that the block 301 is clamped inside the groove 102. The limit block 303 and the limit groove 204 can limit the block 301, so that the block 301 performs a linear sliding movement inside the movable groove 203, and the block 301 will not separate from the movable groove 203.

[0035] Example 3

[0036] like Figures 1-5As shown, on the basis of Embodiment 1 and Embodiment 2, the present utility model provides a technical solution: Preferably, an activity cavity 205 is opened at the upper end of the activity slot 203. The upper end of the limit block 303 at the upper end of the clamping block 301 is fixedly connected with a connecting rod 305. The connecting rod 305 is adapted to the activity cavity 205. The connecting rod 305 is slidably connected to the activity cavity 205. A through slot is opened at one side of the upper end of the activity cavity 205. The through slot runs through the outer wall of the end cover body 2. One side of the upper end of the connecting rod 305 is fixedly connected with an extension rod 306. The extension rod 306 is adapted to the through slot. The extension rod 306 is slidably connected to the inside of the through slot. One end of the extension rod 306 away from the connecting rod 305 is fixedly connected with a pressing block 307.

[0037] In this embodiment, the extension rod 306 can slide inside the through slot. By pressing the pressing block 307, the extension rod 306 can be driven to slide, and the connecting rod 305 can be driven to drive the clamping block 301 to make a sliding movement, so that the clamping block 301 is disengaged from the clamping slot 102, causing the end cover body 2 and the valve body 1 to become loose, and then facilitating the separation of the end cover body 2 and the valve body 1, which provides convenience for the staff to disassemble them.

[0038] Next, the working principle of the protection device of the automatic exhaust valve will be specifically described.

[0039] As Figures 1-5 shown, by screwing the fixing sleeve 201 into the threaded groove 101, during the screwing process, the sliding surface 302 of the clamping block 301 will rub against the edge of the upper end of the valve body 1, causing the clamping block 301 to slide inside the activity slot 203 under the frictional resistance and driving the return spring 304 to compress. When the fixing sleeve 201 is completely screwed into the threaded groove 101, the return spring 304 will drive the clamping block 301 to make a reset movement, so that the clamping block 301 is clamped inside the clamping slot 102, thereby limiting and fixing the end cover body 2. When the end cover body 2 needs to be disassembled, by pressing the pressing block 307, the extension rod 306 can be driven to slide, and the connecting rod 305 can be driven to drive the clamping block 301 to make a sliding movement, so that the clamping block 301 is disengaged from the clamping slot 102, causing the end cover body 2 and the valve body 1 to become loose, and then the end cover body 2 and the valve body 1 can be separated.

[0040] The above generally describes the present utility model in detail. However, based on the present utility model, some modifications or improvements can be made, which are obvious to those of ordinary skill in the technical field. Therefore, the modifications or improvements made without departing from the spirit of the present utility model are within the protection scope of the present utility model.

Claims

1. A protection device for an automatic exhaust valve, comprising a valve body main body (1), an end cover main body (2), and a limiting component (3), characterized in that: A threaded groove (101) is provided at the upper end of the valve body main body (1). On both sides of the inner wall of the valve body main body (1), clamping grooves (102) are provided. A fixing sleeve (201) is fixedly connected to the bottom of the end cover main body (2). Thread patterns (202) are provided on the outer wall of the fixing sleeve (201). The limiting component (3) includes a clamping block (301). The clamping blocks (301) are arranged at both ends of the fixing sleeve (201). A sliding surface (302) is provided at the bottom of one end of the clamping block (301). A return spring (304) is fixedly connected to one end of the clamping block (301).

2. The protection device for an automatic exhaust valve according to claim 1, characterized in that: The thread patterns (202) and the threaded groove (101) are adapted to each other. The end cover main body (2) is threadedly engaged with the upper end of the valve body main body (1) through the thread patterns (202) and the threaded groove (101).

3. The protection device of an automatic exhaust valve according to claim 2, characterized in that: Moving grooves (203) are provided at both ends of the fixing sleeve (201). The clamping blocks (301) are movably connected to the inside of the moving grooves (203). The end of the return spring (304) away from the clamping block (301) is fixedly connected to the inner wall of the moving groove (203).

4. The protection device of an automatic exhaust valve according to claim 3, characterized in that: Limiting grooves (204) are provided at the upper and lower ends of the moving groove (203). Limiting blocks (303) are fixedly connected to the upper and lower ends of the clamping block (301). The limiting blocks (303) and the limiting grooves (204) are adapted to each other.

5. The protection device of an automatic exhaust valve according to claim 4, characterized in that: The limiting blocks (303) are slidably connected to the inside of the limiting grooves (204). The clamping blocks (301) are slidably connected to the inside of the moving grooves (203) through the limiting blocks (303) and the limiting grooves (204).

6. The protection device of an automatic exhaust valve according to claim 5, characterized in that: A moving cavity (205) is provided at the upper end of the moving groove (203). A connecting rod (305) is fixedly connected to the upper end of the limiting block (303) at the upper end of the clamping block (301). The connecting rod (305) and the moving cavity (205) are adapted to each other. The connecting rod (305) is slidably connected to the moving cavity (205).

7. The protection device for an automatic exhaust valve according to claim 6, characterized in that: A through groove is provided on one side of the upper end of the moving cavity (205). The through groove runs through the outer wall of the end cover main body (2). An extension rod (306) is fixedly connected to one side of the upper end of the connecting rod (305).

8. The protection device of an automatic exhaust valve according to claim 7, characterized in that: The extension rod (306) and the through groove are adapted to each other. The extension rod (306) is slidably connected to the inside of the through groove. A pressing block (307) is fixedly connected to the end of the extension rod (306) away from the connecting rod (305).

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