Pressure release device for large steel silo

Abstract

The utility model discloses a pressure release device for a large steel silo, which relates to the technical field of pressure release devices, and comprises a cylinder body, the upper end of the cylinder body is spirally connected with a cylinder cover, the outer surfaces of the upper end and the lower end of the cylinder body are provided with threads, the lower part of the cylinder body is provided with an exhaust hole, and a piston assembly is arranged in the cylinder body. An anti-blocking assembly is arranged on the inner wall of the cylinder body and located at the exhaust hole, and a fixed adjusting assembly is arranged on the inner wall of the cylinder cover. When the negative pressure in the steel silo reaches a pressure release threshold value, the piston assembly is pulled downwards, the anti-blocking assembly is triggered in the downward movement process of the piston assembly, and when the piston assembly moves downwards to exceed the bottom end of the cylinder body, the interior of the steel silo communicates with the outside, and the negative pressure is released.

Description

TECHNICAL FIELD

[0001] The utility model relates to pressure release device technical field, specifically a kind of pressure release device for large steel plate warehouse. BACKGROUND

[0002] For the large steel plate warehouse of storing powdery material, the top of steel plate warehouse is provided with the breather valve communicated with atmosphere, since dust raising will be generated in the process of powdery material into steel plate warehouse, in order to avoid dust raising, some users will cover the breather valve on the top of steel plate warehouse with air-permeable cloth during use, since air-permeable cloth works in dust environment for a long time, air-permeable hole on air-permeable cloth is easily blocked, if air-permeable cloth is blocked, negative pressure will be generated in steel plate warehouse when dust collector on the top of steel plate warehouse is running, and when negative pressure is too large, steel plate warehouse is sucked to be flat, thereby causing steel plate warehouse to collapse.

[0003] The patent with the patent announcement number CN218950062U records a kind of pressure release device for large steel plate warehouse, wherein the scheme recorded in it, when the pressure in steel plate warehouse exceeds preset value, cover plate starts to be pressed by external atmosphere, starts to move downward, spring is compressed, positioning pin moves along with the movement of cover plate at this time, when cover plate falls to the inside of shell, at this time, steel plate warehouse is connected with external atmosphere as a whole, to release the pressure in steel plate warehouse.But the device cannot adjust and set pressure value according to different situations of steel plate warehouse when using.

[0004] Based on this, now provide a kind of pressure release device for large steel plate warehouse, can eliminate the drawbacks of existing device. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of pressure release device for large steel plate, to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of pressure release device for large steel plate, including barrel body, screw connection has cylinder cover on the upper end of barrel body, the upper end outer surface of barrel body is equipped with barrel body screw thread, the lower end outer surface of barrel body is equipped with barrel body lower screw thread, the one end of barrel body outer surface is equipped with exhaust hole near barrel body lower screw thread, the inside of barrel body is equipped with piston assembly for releasing pressure;

[0007] The inner wall of barrel body is equipped with anti-blocking assembly at exhaust hole;

[0008] The inner wall of cylinder cover is equipped with fixed adjustment assembly.

[0009] On the basis of the above technical scheme, the utility model also provides the following optional technical scheme:

[0010] In an alternative: the piston assembly includes a tension spring, the upper end of the tension spring is rotatably connected to the upper end center inside the cylinder cover, the lower end of the tension spring is fixedly connected with a connecting rod, the part close to the upper end of the connecting rod is provided with a protruding block, the lower end of the connecting rod is fixedly connected with a piston plate matched with the cylinder body, the upper side of the piston plate is provided with a limiting sheet, the limiting sheet is fixedly connected with the inner wall of the cylinder body at both ends, and the limiting sheet is slidably connected with the connecting rod.

[0011] In an alternative: the anti-blocking assembly includes a fixed plate, one side of the fixed plate is fixedly connected with the inner wall of the cylinder body below the exhaust hole, the upper surface of the fixed plate is provided with a fixed sheet at both ends, the upper side of the fixed plate is provided with a cleaning rod matched with the exhaust hole, the cleaning rod is slidably connected with the fixed sheet, one side of the fixed plate close to the exhaust hole is provided with a limiting groove, the limiting groove is provided with a compression sheet, the upper end of the compression sheet is fixedly connected with the cleaning rod, and the compression sheet is fixedly connected with the inner wall of the cylinder body and is provided with a spring.

[0012] In an alternative: the fixed adjusting assembly includes a cylinder cover fixed thread, and the cylinder cover fixed thread is located at the lower end of the inner wall of the cylinder cover.

[0013] In an alternative: the outer surface of the cylinder cover is provided with an anti-skid pattern.

[0014] In an alternative: the protruding block is spherical.

[0015] In an alternative: one end of the cleaning rod close to the connecting rod is arc-shaped.

[0016] In an alternative: the cylinder body is cylindrical.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] 1、The utility model discloses a fixed adjusting assembly is set up, and the distance between the piston plate and the bottom end of the cylinder body is adjusted by screwing the cylinder cover, so that the adjustable effect of releasing the pressure threshold is achieved.

[0019] 2、The utility model discloses an anti-blocking assembly is set up, and the effect of preventing the air hole from being blocked is achieved by the back-and-forth movement of the cleaning rod in the exhaust hole.

[0020] 3、The utility model discloses a cylinder body lower thread is set up, and the effect of facilitating installation and replacement is achieved. DRAWINGS

[0021] Figure 1 It is the structure schematic drawing of the utility model.

[0022] Figure 2 It is the sectional structure schematic drawing of the utility model.

[0023] Figure 3The utility model discloses Figure 2 The enlarged structure schematic diagram of the middle A.

[0024] Figure 4 The utility model discloses The utility model discloses

[0025] Mark annotation: 1, the barrel body is 2, the barrel cover is 3, the tension spring is 4, the connecting rod is 5, the convex block is 6, the piston plate is 7, the cleaning rod is 8, the fixed plate is 9, the spring is 10, the compression piece is 11, the exhaust hole is 12, the barrel body upper thread is 13, the barrel body lower thread is 14, the barrel cover fixed thread is 15, the barrel cover adjusting thread is 16, the limiting groove is 17, the fixed piece is 18, the limiting piece. Specific implementation

[0026] In order to make the utility model's purpose, technical scheme and advantage more clearly clear, following combining with the drawing and example, this utility model carries out further detailed explanation.

[0027] In one embodiment, as Figures 1-4 The utility model discloses The utility model discloses

[0028] As Figure 2 , Figure 3As shown, the piston assembly includes a pull spring 3, the upper end of the pull spring 3 is rotatably connected to the inside of the upper end of the cylinder cover 2, the lower end of the pull spring 3 is fixedly connected with a connecting rod 4, the part close to the upper end of the connecting rod 4 is provided with a protruding block 5, the protruding block 5 is spherical, the lower end of the connecting rod 4 is fixedly connected with a piston plate 6 matched with the cylinder body 1, the upper side of the piston plate 6 is provided with a limiting piece 18, the limiting piece 18 is fixedly connected with the inner wall of the cylinder body 1 at both ends, and the limiting piece 18 is slidably connected with the connecting rod 4; the anti-blocking assembly includes a fixed plate 8, one side of the fixed plate 8 is fixedly connected with the inner wall of the cylinder body 1 below the exhaust hole 11, the upper surface of the fixed plate 8 is provided with a fixed piece 17 at both ends, the upper side of the fixed plate 8 is provided with a cleaning rod 7 matched with the exhaust hole 11, the end close to the connecting rod 4 of the cleaning rod 7 is arc-shaped, the cleaning rod 7 is slidably connected with the fixed piece 17, one side of the fixed plate 8 close to the exhaust hole 11 is provided with a limiting groove 16, the limiting groove 16 is provided with a compression piece 10, the upper end of the compression piece 10 is fixedly connected with the cleaning rod 7, and the compression piece 10 is fixedly connected with the inner wall of the cylinder body 1 and the spring 9; when the negative pressure in the steel plate bin reaches the pressure release threshold value, the piston plate 6 drives the connecting rod 4 and the protruding block 5 to move downward and stretch the pull spring 3 under the action of the negative pressure in the steel plate bin, when the protruding block 5 is close to the cleaning rod 7, the cleaning rod 7 is pushed into the exhaust hole 11 to clean the exhaust hole 11, meanwhile, the cleaning rod 7 drives the compression piece 10 to move towards the exhaust hole 11 and compresses the spring 9, when the protruding block 5 starts to move away from the cleaning rod 7 and contacts, the cleaning rod 7 will return to the initial state under the action of the spring 9, when the piston plate 6 is below the bottom end of the cylinder body 1, the inside of the steel plate bin is communicated with the outside and the pressure is released, after the pressure release is completed, the connecting rod 4 and the piston plate 6 will return to the initial state under the action of the pull spring 3.

[0029] As shown in Figure 2 , Figure 4 the fixed adjusting assembly includes a cylinder cover fixed thread 14 located at the lower end of the inner wall of the cylinder cover 2, and a cylinder cover adjusting thread 15 located at the upper end of the inner wall of the cylinder cover 2; in use, first, the cylinder cover fixed thread 14 is screw-connected with the cylinder body thread 12 on the cylinder body 1 until the cylinder body thread 12 is located between the cylinder cover fixed thread 14 and the cylinder cover adjusting thread 15, and then the cylinder cover adjusting thread 15 is screw-connected with the cylinder body thread 12, and the pressure release threshold value is set by adjusting the screwing depth of the cylinder cover adjusting thread 15 and the cylinder body thread 12.

[0030] The utility model discloses a working principle: first through the cylinder body lower thread 13 with the device fixed on the steel plate storehouse, then spiral screw cylinder cover 2, through the change cylinder cover adjusting screw thread 15 with the cylinder body screw thread 12 screw into the depth of setting pressure release threshold size, work, the negative pressure in the steel plate storehouse will make piston plate 6 downward motion, piston plate 6 drive connecting rod 4 and convex block 5 downward motion, and stretch tension spring 3, when convex block 5 close cleaning rod 7, will promote cleaning rod 7 gradually enter the exhaust hole 11, and cleaning rod 7 drive compression sheet 10 and cylinder body 1 inner wall compression spring 9 when, when convex block 5 begins to be far from cleaning rod 7, under the action of spring 9, cleaning rod 7 gradually leave exhaust hole 11, and return to the initial state, when piston plate 6 is lower than the bottom end of cylinder body 1, and the steel plate storehouse interior is connected with the outside and releases pressure, and after pressure release completes, under the action of tension spring 3, connecting rod 4 and piston plate 6 will return to the initial state.

[0031] The above is only the specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of the change or replacement within the technical range disclosed in the present application, and all should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be the protection scope of the claims.

Claims

1. A pressure release device for large steel plate silos, comprising a barrel body (1), a barrel cover (2) is screw connected to the upper end of the barrel body (1), characterized in that, The upper end outer surface of the barrel (1) is provided with barrel upper thread (12), the lower end outer surface of the barrel (1) is provided with barrel lower thread (13), the outer surface of the barrel (1) is provided with exhaust hole (11) near the lower end of the barrel (13), the inside of the barrel (1) is provided with piston assembly for releasing pressure; The inner wall of the barrel (1) is provided with anti-blocking assembly at the exhaust hole (11); The inner wall of the barrel cover (2) is provided with fixed adjusting assembly.

2. A pressure relief device for a large steel silo according to claim 1, characterized in that The piston assembly includes tension spring (3), the upper end of the tension spring (3) is rotatably connected to the upper end center of the inside of the barrel cover (2), the lower end of the tension spring (3) is fixedly connected with connecting rod (4), the part near the upper end of the connecting rod (4) is provided with protruding block (5), the lower end of the connecting rod (4) is fixedly connected with piston plate (6) matched with the barrel (1), the upper side of the piston plate (6) is provided with limiting piece (18), the both ends of the limiting piece (18) are fixedly connected with the inner wall of the barrel (1), and the limiting piece (18) is slidably connected with the connecting rod (4).

3. A pressure relief device for a large steel silo according to claim 1, characterized in that The anti-blocking assembly includes fixed plate (8), one side of the fixed plate (8) is fixedly connected with the inner wall of the barrel (1) below the exhaust hole (11), the upper surface of the fixed plate (8) is provided with fixed piece (17) at both ends, the upper side of the fixed plate (8) is provided with cleaning rod (7) matched with the exhaust hole (11), the cleaning rod (7) is slidably connected with the fixed piece (17), one side of the fixed plate (8) near the exhaust hole (11) is provided with limiting groove (16), the limiting groove (16) is provided with compression piece (10), the upper end of the compression piece (10) is fixedly connected with the cleaning rod (7), and the spring (9) is fixedly connected between the compression piece (10) and the inner wall of the barrel (1).

4. A pressure relief device for a large steel silo according to claim 1, characterized in that The fixed adjusting assembly includes barrel cover fixed thread (14), the barrel cover fixed thread (14) is located at the lower end of the inner wall of the barrel cover (2), and the upper end of the inner wall of the barrel cover (2) is provided with barrel cover adjusting thread (15).

5. A pressure relief device for a large steel silo according to claim 1, characterized in that The outer surface of the barrel cover (2) is provided with anti-skid pattern.

6. A pressure relief device for a large steel silo according to claim 2, wherein The protruding block (5) is spherical.

7. A pressure relief device for a large steel silo according to claim 3, wherein The end of the cleaning rod (7) near the connecting rod (4) is arc-shaped.

8. A pressure relief device for a large steel silo according to claim 1, characterized in that The barrel (1) is cylindrical.

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