Buffer mechanism of anti-explosion valve

Abstract

The utility model relates to the technical field of explosion-proof valves, and discloses a buffer mechanism of an explosion-proof valve, which comprises a valve main body, a baffle plate is arranged in the valve main body, and fixing plates are arranged at two ends of the right side of the baffle plate. According to the buffer mechanism of the anti-explosion valve, the buffer spring, the reset spring, the movable sleeve and the hinge rod are arranged, when explosion and other situations occur, shock waves can make the valve body move, and therefore the valve body can be close to the door plate, and when the valve body is close to the door plate, a buffer plate can extrude the door plate; when the shock waves disappear, the buffer spring and the reset spring enable the movable sleeve to drive the buffer plate to reset through the hinge rod through the elasticity of the buffer spring and the reset spring, and the situation that the valve body cannot be buffered after explosion again is prevented; the problems that after a valve is buffered, the valve is inconvenient to rebound again, and the buffering effect is easily affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof wave valves, in particular to a buffer mechanism of explosion-proof wave valves. Background Art

[0002] Explosion-proof wave valve refers to the protective ventilation equipment used in civil air defense projects to ensure uninterrupted ventilation within the project in the event of an air raid. It is generally used in conjunction with a diffusion chamber. Civil air defense doors are clearly classified and include ordinary single-leaf and double-leaf protective closed doors and closed doors, movable door sills, single-leaf and double-leaf protective closed doors and closed doors, and other civil air defense equipment. When using explosion-proof wave valves, the buffer mechanism can reduce the damage to the explosion-proof wave valves.

[0003] There are still some problems with the buffer mechanism of common explosion-proof wave valves. For example, when the buffer mechanism is used, the buffer plate will squeeze the door plate to buffer the valve, but after buffering the valve, it is inconvenient for the valve to rebound, which can easily affect the buffer effect.

[0004] Therefore, we proposed a buffer mechanism for explosion-proof wave valve to improve the above problems. Utility Model Content

[0005] The utility model aims to provide a buffer mechanism for an explosion-proof valve, so as to solve the problem in the background art that after the valve is buffered, the valve is not convenient to rebound, which easily affects the buffering effect.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a buffer mechanism of an explosion-proof valve, comprising a valve body, a baffle plate is arranged inside the valve body, fixing plates are arranged at both ends of the right side of the baffle plate, fixing blocks are fixedly connected to the bottom and top of the right side of the fixing plate respectively, connecting rods are fixedly connected between the fixing blocks, and buffer components are arranged on the outside and right side of the connecting rod;

[0007] The buffer assembly includes a buffer spring, a return spring and a movable sleeve. A buffer plate is arranged on the right side of the connecting rod. A buffer spring is fixedly connected between the fixed block and the fixing bolt. A movable sleeve is sleeved on the bottom and top of the outside of the connecting rod. A return spring is fixedly connected between the movable sleeve and the fixed block. Mounting blocks are fixedly connected to the right side of the movable sleeve and the left side of the buffer plate respectively. A hinged rod is movably hinged between the mounting blocks.

[0008] Preferably, the movable sleeve slides at the bottom end and the top end of the outside of the connecting rod, and the return spring is arranged at the bottom end and the top end of the outside of the connecting rod.

[0009] Preferably, two groups of the fixing plates are provided, and four groups of the fixing blocks are provided, and the fixing blocks are symmetrically distributed about the vertical center line of the fixing plates.

[0010] Preferably, a mounting sleeve is provided on the outside of the connecting rod, an extension block is fixedly connected to the left side of the mounting sleeve, fixing grooves are provided at the bottom and top ends of the extension block, fixing bolts are provided inside the fixing grooves, and a damper is provided between the mounting sleeve and the buffer plate.

[0011] Preferably, the mounting sleeve is mounted on the outside of the connecting rod via a fixing groove and a fixing bolt, and two groups of the mounting sleeve are provided.

[0012] Preferably, mounting grooves are respectively provided at the bottom and top ends of the baffle plate and the fixing plate, and mounting bolts are provided inside the mounting grooves.

[0013] Preferably, the mounting grooves are provided on both sides of the bottom and the top of the baffle, and the mounting bolts and the mounting grooves cooperate with each other.

[0014] Preferably, the fixing plate is mounted on the baffle plate through mounting bolts and mounting grooves, and the baffle plate is mounted inside the valve body.

[0015] Compared with the prior art, the utility model has the beneficial effects that: the buffer mechanism of the explosion-proof wave valve not only facilitates the rebound of the buffer plate and the position limiting of the buffer plate, but also facilitates the installation of the mechanism;

[0016] (1) By providing a buffer spring, a mounting block, a return spring, a movable sleeve and a hinge rod, when an explosion occurs, the shock wave will cause the valve body to move, thereby allowing the valve body to approach the door panel. When the valve body approaches the door panel, the buffer plate will press the door panel, and the buffer spring will buffer the valve body through its elasticity to reduce the shock wave. When the shock wave disappears, the buffer spring and the return spring will use their own elasticity to cause the movable sleeve to drive the buffer plate to reset through the hinge rod to prevent the valve body from failing to buffer the explosion again;

[0017] (2) By providing a fixing bolt, a damper, an extension block and a mounting sleeve, the mounting sleeve is sleeved on the outside of the connecting rod, and then the fixing bolt is screwed into the inside of the fixing groove to fix the extension block, so that the mounting sleeve can be installed on the outside of the connecting rod, and the damper can support the buffer plate to prevent the buffer plate from shaking during use, thereby improving the stability of the buffer plate during use;

[0018] (3) By providing a fixing plate, a mounting bolt and a mounting groove, when the mechanism needs to be installed, the fixing plate is placed on the right side inside the valve body, and then the mounting groove inside the fixing plate is aligned with the mounting groove inside the baffle. After the mounting grooves are aligned, the mounting bolts are screwed into the mounting grooves to fix the fixing plate, so that the mechanism can be installed. When the mechanism needs to be disassembled, the mounting bolts are screwed out from the mounting grooves to make the fixing plate lose its fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0020] Figure 2 This is a rear view structural diagram of the fixing plate of the utility model;

[0021] Figure 3 This is a schematic diagram of the side structure of the baffle of the utility model;

[0022] Figure 4 For the utility model Figure 2 Schematic diagram of the enlarged cross-section structure at point A in the middle.

[0023] In the figure: 1. valve body; 2. baffle; 3. fixing plate; 4. connecting rod; 5. mounting bolt; 6. mounting groove; 7. fixing block; 8. buffer spring; 9. buffer plate; 10. fixing bolt; 11. damper; 12. mounting block; 13. extension block; 14. fixing groove; 15. mounting sleeve; 16. reset spring; 17. movable sleeve; 18. hinge rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1: Please refer to Figure 1-4 A buffer mechanism of an explosion-proof valve comprises a valve body 1, a baffle plate 2 is arranged inside the valve body 1, fixing plates 3 are arranged at both ends of the right side of the baffle plate 2, fixing blocks 7 are fixedly connected to the bottom and top of the right side of the fixing plate 3, connecting rods 4 are fixedly connected between the fixing blocks 7, and buffer components are arranged on the outside and right side of the connecting rod 4;

[0026] The buffer assembly includes a buffer spring 8, a return spring 16 and a movable sleeve 17. A buffer plate 9 is provided on the right side of the connecting rod 4. The buffer spring 8 is fixedly connected between the fixed block 7 and the fixing bolt 10. The bottom and top of the outer side of the connecting rod 4 are sleeved with a movable sleeve 17. The return spring 16 is fixedly connected between the movable sleeve 17 and the fixed block 7. The right side of the movable sleeve 17 and the left side of the buffer plate 9 are respectively fixedly connected with mounting blocks 12. A hinged rod 18 is movably hinged between the mounting blocks 12.

[0027] The movable sleeve 17 slides at the bottom and top of the outside of the connecting rod 4, the return spring 16 is arranged at the bottom and top of the outside of the connecting rod 4, the fixing plate 3 is provided with two groups, the fixing blocks 7 are provided with four groups, and the fixing blocks 7 are symmetrically distributed about the vertical center line of the fixing plate 3;

[0028] Specifically, Figure 1 , Figure 2 and Figure 4 As shown, when an explosion occurs, the shock wave will cause the valve body 1 to move, thereby allowing the valve body 1 to approach the door panel. When the valve body 1 approaches the door panel, the buffer plate 9 will squeeze the door panel, and the buffer spring 8 will use its elasticity to buffer the valve body 1 and reduce the shock wave. When the shock wave disappears, the buffer spring 8 and the reset spring 16 will use their own elasticity to allow the movable sleeve 17 to reset the buffer plate 9 through the hinge rod 18 to prevent the valve body 1 from failing to buffer due to another explosion.

[0029] Embodiment 2: A mounting sleeve 15 is provided on the outside of the connecting rod 4, and an extension block 13 is fixedly connected to the left side of the mounting sleeve 15. A fixing groove 14 is provided at the bottom and top of the extension block 13, and a fixing bolt 10 is provided inside the fixing groove 14. A damper 11 is provided between the mounting sleeve 15 and the buffer plate 9. The mounting sleeve 15 is installed on the outside of the connecting rod 4 through the fixing groove 14 and the fixing bolt 10. Two groups of mounting sleeves 15 are provided;

[0030] Specifically, Figure 1 , Figure 2 and Figure 4 As shown, the mounting sleeve 15 is sleeved on the outside of the connecting rod 4, and then the fixing bolt 10 is screwed into the inside of the fixing groove 14 to fix the extension block 13, so that the mounting sleeve 15 can be installed on the outside of the connecting rod 4. The damper 11 can support the buffer plate 9 to prevent the buffer plate 9 from shaking during use, thereby improving the stability of the buffer plate 9 during use.

[0031] Embodiment 3: The bottom and top ends of the baffle plate 2 and the fixing plate 3 are respectively provided with mounting grooves 6, and mounting bolts 5 are arranged inside the mounting grooves 6. The mounting grooves 6 are provided on both sides of the bottom and top of the baffle plate 2, and the mounting bolts 5 and the mounting grooves 6 cooperate with each other. The fixing plate 3 is installed on the baffle plate 2 through the mounting bolts 5 and the mounting grooves 6, and the baffle plate 2 is installed inside the valve body 1;

[0032] Specifically, Figure 1 , Figure 2 and Figure 3As shown, when the mechanism needs to be installed, the fixing plate 3 is placed on the right side inside the valve body 1, and then the mounting groove 6 inside the fixing plate 3 is aligned with the mounting groove 6 inside the baffle 2. After the mounting groove 6 is aligned, the mounting bolt 5 is screwed into the mounting groove 6 to fix the fixing plate 3, so that the mechanism can be installed. When the mechanism needs to be disassembled, the mounting bolt 5 is screwed out from the mounting groove 6 to make the fixing plate 3 lose its fixation.

[0033] Working principle: When the utility model is in use, the fixing plate 3 is placed on the right side inside the valve body 1, and then the mounting groove 6 inside the fixing plate 3 is aligned with the mounting groove 6 inside the baffle 2. After the mounting groove 6 is aligned, the mounting bolt 5 is screwed into the inside of the mounting groove 6 to fix the fixing plate 3, so that the mechanism can be installed. When an explosion or the like occurs during use, the shock wave will cause the valve body 1 to move, so that the valve body 1 can be moved closer to the door panel. When the valve body 1 is closer to the door panel, the buffer plate 9 will squeeze the door panel, and the buffer spring 8 will buffer the valve body 1 through its elasticity to reduce the shock wave. When the shock wave disappears, the buffer spring 8 and the reset spring 16 will use their own elasticity to make the movable sleeve 17 drive the buffer plate 9 to reset through the hinge rod 18 to prevent the valve body 1 from being buffered by another explosion. The damper 11 can support the buffer plate 9 to prevent the buffer plate 9 from shaking during use, thereby improving the stability of the buffer plate 9 during use. When the mechanism needs to be disassembled, the mounting bolt 5 is screwed out from the inside of the mounting groove 6 to make the fixing plate 3 lose its fixation.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A buffer mechanism for an explosion-proof valve, comprising a valve body (1), characterized in that: A baffle (2) is arranged inside the valve body (1), and fixing plates (3) are arranged at both ends of the right side of the baffle (2), and fixing blocks (7) are fixedly connected to the bottom and top of the right side of the fixing plate (3), respectively, and connecting rods (4) are fixedly connected between the fixing blocks (7), and a buffer assembly is arranged on the outside and right side of the connecting rod (4); The buffer assembly comprises a buffer spring (8), a return spring (16) and a movable sleeve (17); a buffer plate (9) is arranged on the right side of the connecting rod (4); a buffer spring (8) is fixedly connected between the fixing block (7) and the fixing bolt (10); a movable sleeve (17) is sleeved on the bottom and top of the outside of the connecting rod (4); a return spring (16) is fixedly connected between the movable sleeve (17) and the fixing block (7); the right side of the movable sleeve (17) and the left side of the buffer plate (9) are respectively fixedly connected with mounting blocks (12); and a hinged rod (18) is movably hinged between the mounting blocks (12).

2. The buffer mechanism of the explosion-proof valve according to claim 1, characterized in that: The movable sleeve (17) slides at the bottom end and the top end outside the connecting rod (4), and the return spring (16) is arranged at the bottom end and the top end outside the connecting rod (4).

3. The buffer mechanism of the explosion-proof valve according to claim 1, characterized in that: The fixing plates (3) are provided in two groups, the fixing blocks (7) are provided in four groups, and the fixing blocks (7) are symmetrically distributed about the vertical center line of the fixing plates (3).

4. The buffer mechanism of the explosion-proof valve according to claim 1, characterized in that: A mounting sleeve (15) is arranged outside the connecting rod (4), an extension block (13) is fixedly connected to the left side of the mounting sleeve (15), a fixing groove (14) is provided at the bottom and top ends inside the extension block (13), a fixing bolt (10) is arranged inside the fixing groove (14), and a damper (11) is arranged between the mounting sleeve (15) and the buffer plate (9).

5. The buffer mechanism of the explosion-proof valve according to claim 4, characterized in that: The mounting sleeve (15) is mounted on the outside of the connecting rod (4) via a fixing groove (14) and a fixing bolt (10), and two groups of the mounting sleeve (15) are provided.

6. The buffer mechanism of the explosion-proof valve according to claim 1, characterized in that: The bottom and top ends of the baffle plate (2) and the fixing plate (3) are respectively provided with mounting grooves (6), and mounting bolts (5) are arranged inside the mounting grooves (6).

7. The buffer mechanism of the explosion-proof valve according to claim 6, characterized in that: The mounting groove (6) is provided on both sides of the bottom and the top of the baffle (2), and the mounting bolt (5) and the mounting groove (6) cooperate with each other.

8. The buffer mechanism of the explosion-proof valve according to claim 1, characterized in that: The fixing plate (3) is mounted on the baffle (2) via mounting bolts (5) and mounting grooves (6); the baffle (2) is mounted inside the valve body (1).

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