Valve with pressure relief function

Abstract

The utility model provides a valve with a pressure relief function, and belongs to the technical field of valves. The valve with the pressure relief function comprises a valve body and a pressure relief structure, the valve body comprises a valve main body, the pressure relief structure comprises a pressure relief box, a pressure relief assembly, a driving assembly, a limiting frame, a pressure relief frame and a baffle, the pressure relief box and the pressure relief frame are both communicated with the valve main body, the pressure relief assembly is arranged in the pressure relief box, and the driving assembly is arranged in the pressure relief box. The driving assembly is arranged in the pressure relief box, the baffle is connected with the driving assembly, the two sides of the limiting frame communicate with the pressure relief box and the pressure relief frame correspondingly, and the baffle is in sliding connection with the limiting frame and the pressure relief frame. According to the pressure relief valve, the valve with the pressure relief function can conveniently adjust the opening degree of the baffle according to the pressure, the pressure relief adjusting function is achieved, and the pressure relief effect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of valves, in particular, to a valve with pressure relief function. BACKGROUND

[0002] The valve is a pipeline accessory used to open and close the pipeline, control the flow direction, adjust and control the parameters of the conveying medium. The hydrogen energy valve refers to the valve used on the hydrogen conveying pipeline. Through the action of the valve, the control effect of hydrogen conveying is achieved. However, when the existing hydrogen energy valve is used, the valve does not have a pressure relief mechanism. When the valve is subjected to excessive pressure, it cannot be discharged in time, causing damage to the pipeline or explosion.

[0003] To this end, Chinese patent application No. CN202421263986.7 discloses a hydrogen energy valve with pressure relief function, which comprises a valve shell, flange plates are fixedly connected to the two sides of the valve shell, a handle is movably connected to the surface of the valve shell, a gas guide pipe is connected to the outer surface of the valve shell, a pressure relief pipe is fixedly connected to the surface of the gas guide pipe, a control ball is fixedly connected to the bottom end of the handle, and a control ring is fixedly connected to the inner side of the valve shell. The threaded connection of the fixed disc and the pressure relief pipe, the connection of the supporting spring and the ball, and the action of the ball in the pressure relief pipe achieve the control effect of the gas guide pipe passage, thereby realizing the pressure relief function, improving the safety performance and effect of use, and changing the action angle of the ring plate on the adjusting column through the abutting connection of the ring plate and the control ring, thereby achieving the control effect of the valve shell ventilation volume and improving the use range and performance.

[0004] However, in the above-mentioned scheme, when the pipeline system appears abnormal pressure fluctuation, the pressure relief mode cannot adjust the pressure relief amount according to the pressure change, which easily leads to pressure relief lag when sudden high pressure impact occurs, thereby reducing the pressure relief effect and the practicability of the device. Utility model content

[0005] In order to make up for the above shortcomings, the present application provides a valve with pressure relief function, which aims to improve the practicability of the device.

[0006] The embodiment of the present application provides a valve with pressure relief function, which comprises a valve body and a pressure relief structure, the valve body comprises a valve main body, the pressure relief structure comprises a pressure relief box, a pressure relief assembly, a driving assembly, a limiting frame, a pressure relief frame and a baffle, the pressure relief box and the pressure relief frame are in communication with the valve main body, the pressure relief assembly is arranged in the pressure relief box, the driving assembly is arranged in the pressure relief box, the baffle is connected with the driving assembly, the limiting frame is in communication with the pressure relief box and the pressure relief frame on both sides respectively, the baffle is slidably connected with the limiting frame, and the baffle is slidably connected with the pressure relief frame.

[0007] In a specific embodiment, the pressure relief assembly comprises a sliding plate, a pressure relief hole and a first spring, the sliding plate is slidably connected with the inner wall of the pressure relief box, the pressure relief box is provided with a plurality of pressure relief holes penetrating through the four surfaces, and the first spring is fixedly connected with the sliding plate.

[0008] In the above implementation process, the sliding plate, the pressure relief hole and the first spring are arranged, so that pressure relief is facilitated.

[0009] In a specific embodiment, the pressure relief box is provided with an adjusting assembly, the adjusting assembly comprises a screw rod, a pressing plate and an L-shaped limiting rod, the screw rod is threadedly connected with the pressure relief box, the screw rod is rotatably connected with the pressing plate, the L-shaped limiting rod is fixedly connected to one side of the pressing plate, the L-shaped limiting rod is slidably connected with the pressure relief box, and the first spring is fixedly connected with the pressing plate.

[0010] In the above implementation process, the screw rod, the pressing plate and the L-shaped limiting rod are arranged, so that the initial pressure of the pressing plate on the sliding plate can be conveniently adjusted, the pressure relief threshold is adjusted, and the practicability of the device is improved.

[0011] In a specific embodiment, a bearing is embedded on one side of the pressing plate, and the screw rod is in interference fit with the inner ring of the bearing.

[0012] In the above implementation process, the screw rod is in interference fit with the inner ring of the bearing, so that the screw rod and the pressing plate can be rotatably connected, and the pressing plate can be conveniently driven to move.

[0013] In a specific embodiment, a rotating block is arranged at one end of the screw rod.

[0014] In the above implementation process, the rotating block is arranged at one end of the screw rod, so that the user can conveniently rotate the screw rod, thereby saving time and effort.

[0015] In a specific implementation, the driving assembly comprises a first toothed plate, a gear and two second toothed plates, the first toothed plate is in sliding connection with the inner wall of the pressure relief box, the gear is in rotational connection with the pressure relief box, the first toothed plate is in meshing connection with the gear, the two second toothed plates are in meshing connection with the gear, the second toothed plates are in sliding connection with the limiting frame, and the baffle is in fixed connection with the second toothed plates.

[0016] In the implementation process, the first toothed plate, the gear and the two second toothed plates are arranged to facilitate the driving of the baffle.

[0017] In a specific implementation, the baffle is provided with a second spring on one side, and the second spring is connected with the pressure relief box.

[0018] In the implementation process, the second spring is arranged to facilitate the resetting of the baffle.

[0019] Compared with the prior art, the beneficial effects of the present application are as follows: through the double-channel linkage structure of the pressure relief box and the pressure relief frame, and through the driving assembly to drive the baffle to slide, the opening of the baffle is dynamically adjusted according to the pressure gradient, the pressure relief adjustment function is realized, the effect of pressure relief is improved, through the arrangement of the adjusting assembly, the initial pressure of the pressure plate on the sliding plate is conveniently adjusted, so as to adjust the pressure relief threshold, and the practicability of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0021] Figure 1 is a schematic diagram of a valve structure with pressure relief function provided by the embodiments of the present application;

[0022] Figure 2 is a schematic diagram of a valve structure with pressure relief function provided by the embodiments of the present application;

[0023] Figure 3 is a schematic diagram of a pressure relief structure provided by the embodiments of the present application;

[0024] Figure 4 is a schematic diagram of a pressure relief structure provided by the embodiments of the present application.

[0025] In the figure: 10-valve body; 110-valve body; 20-pressure relief structure; 210-pressure relief box; 220-pressure relief assembly; 221-sliding plate; 222-pressure relief hole; 223-first spring; 230-driving assembly; 231-first tooth plate; 232-gear; 233-second tooth plate; 240-limiting frame; 250-pressure relief frame; 260-baffle; 270-adjusting assembly; 271-screw rod; 272-pressing plate; 273-L-shaped limiting rod; 280-second spring. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments of the present application.

[0027] Please refer to Figure 1 , the present application provides a valve with pressure relief function, comprising a valve body 10 and a pressure relief structure 20.

[0028] Please refer to Figure 1 and Figure 2 , the valve body 10 comprises a valve body 110.

[0029] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , the pressure relief structure 20 comprises a pressure relief box 210, a pressure relief assembly 220, a driving assembly 230, a limiting frame 240, a pressure relief frame 250 and a baffle 260, the pressure relief box 210 and the pressure relief frame 250 are in communication with the valve body 110, the pressure relief assembly 220 is arranged in the pressure relief box 210, the driving assembly 230 is arranged in the pressure relief box 210, the baffle 260 is connected with the driving assembly 230, the limiting frame 240 is in communication with the pressure relief box 210 and the pressure relief frame 250 on both sides, the baffle 260 is slidingly connected with the limiting frame 240, and the baffle 260 is slidingly connected with the pressure relief frame 250.

[0030] In specific arrangement, the pressure relief assembly 220 comprises a sliding plate 221, a pressure relief hole 222 and a first spring 223, the sliding plate 221 is slidingly connected with the inner wall of the pressure relief box 210, the pressure relief box 210 is provided with a plurality of pressure relief holes 222 on four sides, and the first spring 223 is fixedly connected with the sliding plate 221, wherein the arrangement of the sliding plate 221, the pressure relief hole 222 and the first spring 223 can facilitate pressure relief.

[0031] In the specific arrangement, the pressure relief tank 210 is provided with an adjusting assembly 270, which comprises a screw rod 271, a pressing plate 272 and an L-shaped limiting rod 273, the screw rod 271 is threadedly connected with the pressure relief tank 210, the screw rod 271 is rotationally connected with the pressing plate 272, the L-shaped limiting rod 273 is fixedly connected to one side of the pressing plate 272, the L-shaped limiting rod 273 is slidingly connected with the pressure relief tank 210, and the first spring 223 is fixedly connected with the pressing plate 272, wherein the screw rod 271, the pressing plate 272 and the L-shaped limiting rod 273 can conveniently adjust the initial pressure of the pressing plate 272 on the sliding plate 221, so as to adjust the pressure relief threshold, thereby improving the practicability of the device.

[0032] In the specific arrangement, the pressing plate 272 is embedded with a bearing on one side, and the screw rod 271 is interference-fitted with the inner ring of the bearing, wherein the interference-fitting of the screw rod 271 with the inner ring of the bearing can conveniently rotationally connect the screw rod 271 with the pressing plate 272, and conveniently drive the pressing plate 272 to move.

[0033] In the specific arrangement, the screw rod 271 is provided with a rotating block at one end, wherein the rotating block at one end of the screw rod 271 can conveniently rotate the screw rod 271 for the user, saving time and effort.

[0034] In the specific arrangement, the driving assembly 230 comprises a first toothed plate 231, a gear 232 and two second toothed plates 233, the first toothed plate 231 is slidingly connected with the inner wall of the pressure relief tank 210, the gear 232 is rotationally connected with the pressure relief tank 210, the first toothed plate 231 is engaged with the gear 232, and the two second toothed plates 233 are engaged with the gear 232, the second toothed plate 233 is slidingly connected with the limiting frame 240, and the baffle 260 is fixedly connected with the second toothed plate 233, wherein the first toothed plate 231, the gear 232 and the two second toothed plates 233 can conveniently drive the baffle 260 to move.

[0035] In the specific arrangement, the baffle 260 is provided with a second spring 280 on one side, and the second spring 280 is connected with the pressure relief tank 210, wherein the second spring 280 can conveniently drive the baffle 260 to reset.

[0036] The working principle of the valve with pressure relief function: when using the valve with pressure relief function, in the initial state, the sliding plate 221 is covered with the pressure relief hole 222 under the pressure of the first spring 223, and the baffle 260 is closed under the action of the second spring 280, when the pipeline pressure exceeds the preset threshold, the pressure pushes the sliding plate 221 to move upwards, gradually opens the pressure relief hole 222 distributed on four sides of the pressure relief box 210, the sliding plate 221 continues to move upwards, drives the gear 232 to rotate by pushing the first tooth plate 231, drives the second tooth plate 233 on both sides to translate, makes the baffle 260 slide along the limiting frame 240, and gradually opens the passage of the pressure relief frame 250, realizes the pressure relief regulation function, improves the pressure relief effect, when the pressure falls, the first spring 223 and the second spring 280 push the sliding plate 221 and the baffle 260 to reset respectively, quickly restores the sealing state, the pre-pressure of the pressure plate 272 on the first spring 223 can be adjusted by rotating the screw rod 271, which improves the practicability of the device.

[0037] It should be noted that the specific model and specification of the valve body 110 need to be selected and determined according to the actual specification of the device, and the specific selection calculation method adopts the existing technology in the art, so it will not be described in detail.

[0038] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A valve having a pressure relief function, characterized by, The utility model relates to a valve body (10) including a valve body (110), a pressure relief structure (20) including a pressure relief box (210), a pressure relief assembly (220), a driving assembly (230), a limiting frame (240), a pressure relief frame (250) and a baffle (260), the pressure relief box (210) and the pressure relief frame (250) are communicated with the valve body (110), the pressure relief assembly (220) is arranged in the pressure relief box (210), the driving assembly (230) is arranged in the pressure relief box (210), the baffle (260) is connected with the driving assembly (230), the limiting frame (240) both sides are communicated with the pressure relief box (210) and the pressure relief frame (250) respectively, the baffle (260) is connected with the limiting frame (240) slidingly, and the baffle (260) is connected with the pressure relief frame (250) slidingly. The pressure relief assembly (220) includes a sliding plate (221), a pressure relief hole (222) and a first spring (223), the sliding plate (221) is connected with the inner wall of the pressure relief box (210) slidingly, the pressure relief box (210) is provided with a plurality of pressure relief holes (222) on four sides, and the first spring (223) is fixedly connected with the sliding plate (221). The pressure relief box (210) is provided with an adjusting assembly (270), the adjusting assembly (270) includes a screw rod (271), a pressing plate (272) and an L-shaped limiting rod (273), the screw rod (271) is threadedly connected with the pressure relief box (210), the screw rod (271) is rotatably connected with the pressing plate (272), the L-shaped limiting rod (273) is fixedly connected to one side of the pressing plate (272), the L-shaped limiting rod (273) is slidingly connected with the pressure relief box (210), and the first spring (223) is fixedly connected with the pressing plate (272).

2. The valve with pressure relief function according to claim 1, characterized in that, A bearing is embedded on one side of the pressing plate (272), and the screw rod (271) is in interference fit with the inner ring of the bearing.

3. The valve with pressure relief function according to claim 2, characterized in that, One end of the screw rod (271) is provided with a rotating block.

4. The valve with pressure relief function according to claim 3, characterized in that, The driving assembly (230) includes a first toothed plate (231), a gear (232) and two second toothed plates (233), the first toothed plate (231) is slidingly connected with the inner wall of the pressure relief box (210), the gear (232) is rotatably connected with the pressure relief box (210), the first toothed plate (231) is engaged with the gear (232), both the second toothed plates (233) are engaged with the gear (232), the second toothed plate (233) is slidingly connected with the limiting frame (240), and the baffle (260) is fixedly connected with the second toothed plate (233).

5. The valve with pressure relief function according to claim 3, characterized in that, One side of the baffle (260) is provided with a second spring (280), and the second spring (280) is connected with the pressure relief box (210).

6. The valve with pressure relief function according to claim 1, characterized in that, ​ 7. The valve with pressure relief function according to claim 1, characterized in that, ​

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