Gate valve with emergency opening and closing function
By installing a slot and a sliding groove on the inner wall of the gate valve, equipped with arc clamps and sealing sleeves, and using a limiting plate and rotating device to ensure sealing, the problem of existing gate valves being easily broken when not in use for a long time is solved, the emergency effect and fixity are improved, and the normal operation and safety of the equipment are ensured.
Patent Information
- Application Number
- CN202421588096.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-06
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-06
AI Technical Summary
When existing gate valves are not used for a long time, they are prone to break the connection point of the valve stem and the valve plate due to excessive force rotation, and the arc-shaped clamp cannot be effectively fixed, resulting in the equipment being unable to be effectively closed, reducing emergency effects and fixability.
A gate valve with emergency opening and closing function is designed. By installing a clamping groove and sliding groove on the inner wall of the gate valve body, an arc clamp block and a sealing sleeve is equipped. The limiting plate and rotating device are used to ensure that the arc clamp block is closely attached to the inner wall, and sealing is achieved through the sealing plate and sealing block to prevent fluid leakage.
It effectively prevents fluid leakage when the valve plate is broken, ensures normal operation of the equipment, improves the emergency effect and fixation of the gate valve, and avoids safety hazards and potential hazards caused by valve plate breakage.
Smart Images
Figure CN222880375U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gate valves, in particular to a gate valve with emergency opening and closing functions. Background Art
[0002] The gate valve is an opening and closing component, the movement direction of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. The gate valve is sealed by the contact between the valve seat and the gate. Usually the sealing surface is welded with metal materials to increase wear resistance.
[0003] During use, the existing gate valve can control the on-off of the fluid, but it cannot be opened and closed in an emergency, resulting in the valve stem breaking when it is turned forcefully when not in use for a long time, causing the valve plate to be blocked on the inner wall of the gate valve. At the same time, the arc-shaped clamping block cannot be fixed, resulting in the arc-shaped clamping block tilting when the gate valve is closed, making it impossible for the equipment to effectively close the gate valve, thereby reducing the emergency effect and fixity of the traditional gate valve, and thus a gate valve with emergency opening and closing function is introduced. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a gate valve with emergency opening and closing functions, which has the advantages of good emergency effect and good fixation, and solves the problems raised by the above-mentioned background technology.
[0005] The utility model provides the following technical solutions: a gate valve with emergency opening and closing functions, comprising a gate valve body, a handwheel is provided on the top of the gate valve body, a valve stem is fixedly assembled at the bottom of the handwheel, a valve plate is threadedly connected to the bottom of the valve stem, a rotating rod is rotatably connected to the inner wall of the gate valve body, one end of a limiting plate is fixedly assembled on the outer wall of the rotating rod, a sealing block is fixedly assembled on the other end of the limiting plate, a clamping block is fixedly assembled on the end of the sealing block away from the limiting plate, sealing plates are fixedly assembled on the outer walls of both sides of the limiting plate, and a limiting rod is fixedly assembled on the bottom of the limiting plate.
[0006] As an optimal technical solution of the utility model, the inner wall of the gate valve body is respectively provided with a clamping groove and a sliding groove, the inner wall of the gate valve body is provided with an arc clamping block, the inner wall of the arc clamping block is threadedly connected with a threaded barrel, the top of the threaded barrel is fixedly equipped with a rotating device, the outer wall of the arc clamping block is fixedly equipped with a sealing sleeve, and the inner wall of the sliding groove is fixedly equipped with a limiting rod 2.
[0007] As a preferred technical solution of the utility model, the clamping block is clamped with the inner wall of the clamping groove, and the limiting rod is plugged with the inner wall of the rotating device.
[0008] As a preferred technical solution of the utility model, the arc clamping block is matched with the inner wall of the gate valve body, and the sealing plate, the sealing block and the sealing sleeve are all tightly fitted with the inner wall of the gate valve body.
[0009] As a preferred technical solution of the utility model, the valve stem is threadedly connected to the inner wall of the gate valve body, and the valve plate is matched with the inner wall of the gate valve body.
[0010] As a preferred technical solution of the utility model, there are four limit rods 2, and the four arc blocks are respectively located on the inner wall of the sliding groove.
[0011] Compared with the prior art, the utility model has the following beneficial effects:
[0012] 1. For the gate valve with emergency opening and closing function, if the gate valve body has not been used for a long time, turning the hand wheel and the valve stem forcefully will cause the connection point between the valve stem and the valve plate to break. The staff will open the limit plate and then put the arc clamp into the inner wall of the gate valve body. By rotating the rotating device and the threaded cylinder, the arc clamp can be tightly fitted to the inner wall of the gate valve body. The sealing sleeve provided on the outer wall of the arc clamp can seal the inner wall of the gate valve body during placement, so that the fluid will not flow out from the gap between the arc clamp and the sealing sleeve, preventing the valve plate from breaking, which will affect the normal operation of the equipment and cause great harm.
[0013] 2. For the gate valve with emergency opening and closing function, after placing the arc clamping block, the staff rotates the limit plate so that the limit plate drives the rotating rod to rotate on the inner wall of the gate valve body. When the clamping block is clamped with the inner wall of the clamping groove, the limit rod is inserted into the inner wall of the rotating device to limit the rotating device. The rotating device is squeezed and limited by the limit plate, so that the arc clamping block is more stable during use. When the gate valve body is in use, the clamping block is clamped with the clamping groove, so that the sealing plate and the sealing block seal the gap between the limit plate and the gate valve body, so that the fluid of the gate valve body will not flow out from the connection point between the gate valve body and the limit plate during operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0015] Figure 2 This is a schematic diagram of the valve plate structure of the utility model;
[0016] Figure 3 This is a schematic diagram of the sealing sleeve structure of the utility model;
[0017] Figure 4 This is a schematic diagram of the second structure of the limit rod of the utility model;
[0018] Figure 5 For this utility model Figure 3 Enlarged structural diagram at A in the middle.
[0019] In the figure: 1. gate valve body; 2. hand wheel; 3. valve stem; 4. valve plate; 5. limit plate; 6. rotating device; 7. sealing plate; 8. limit rod 1; 9. sliding groove; 10. arc clamping block; 11. sealing sleeve; 12. limit rod 2; 13. threaded tube; 14. sealing block; 15. clamping block; 16. clamping groove; 17. rotating rod. DETAILED DESCRIPTION
[0020] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0021] See also Figure 1 - Figure 5 A gate valve with emergency opening and closing function comprises a gate valve body 1, a hand wheel 2 is arranged on the top of the gate valve body 1, a valve stem 3 is fixedly assembled at the bottom of the hand wheel 2, a valve plate 4 is threadedly connected to the bottom of the valve stem 3, a rotating rod 17 is rotatably connected to the inner wall of the gate valve body 1, one end of a limit plate 5 is fixedly assembled on the outer wall of the rotating rod 17, a sealing block 14 is fixedly assembled on the other end of the limit plate 5, a clamping block 15 is fixedly assembled on the end of the sealing block 14 away from the limit plate 5, sealing plates 7 are fixedly assembled on the outer walls of both sides of the limit plate 5, and a limit rod 8 is fixedly assembled on the bottom of the limit plate 5.
[0022] It should be noted that, when the gate valve body 1 has not been used for a long time, if the hand wheel 2 and the valve stem 3 are turned excessively, there may be a risk of fracture at the connection point between the valve stem 3 and the valve plate 4. The staff opens the limit plate 5, and then places the arc block 10 in the inner wall of the gate valve body 1. By accurately turning the rotating device 6 and the threaded cylinder 13, it is ensured that the arc block 10 can fit tightly against the inner wall of the gate valve body 1. At the same time, since the outer wall of the arc block 10 is equipped with a sealing sleeve 11, the arc block 10 can effectively seal the inner wall of the gate valve body 1 during placement, thereby avoiding the possibility of fluid leakage from the gap between the arc block 10 and the sealing sleeve 11, preventing abnormal equipment operation caused by the breakage of the valve plate 4, and thus avoiding the major safety hazards and potential hazards caused thereby.
[0023] In a preferred embodiment, the inner wall of the gate valve body 1 is respectively provided with a clamping groove 16 and a sliding groove 9, the inner wall of the gate valve body 1 is provided with an arc clamping block 10, the inner wall of the arc clamping block 10 is threadedly connected with a threaded barrel 13, the top of the threaded barrel 13 is fixedly equipped with a rotating device 6, the outer wall of the arc clamping block 10 is fixedly equipped with a sealing sleeve 11, and the inner wall of the sliding groove 9 is fixedly equipped with a limiting rod 12.
[0024] It should be noted that the staff rotates the limit plate 5 to drive the rotating rod 17 to rotate on the inner wall of the container gate valve body 1. When the clamping block 15 is clamped with the inner wall of the clamping groove 16, the limit rod 8 will be accurately inserted into the inner wall of the rotating device 6, thereby realizing effective limiting of the rotating device 6. The rotating device 6 is squeezed and limited by the limit plate 5, ensuring the high stability of the arc clamping block 10 during use. At the same time, during the operation of the container gate valve body 1, the clamping block 15 and the clamping groove 16 remain in a clamping state, so that the sealing plate 7 and the sealing block 14 can tightly close the gap between the limit plate 5 and the container gate valve body 1, effectively preventing the fluid from leaking from the connection point between the container gate valve body 1 and the limit plate 5.
[0025] In a preferred embodiment, the clamping block 15 is clamped with the inner wall of the clamping groove 16 , and the limiting rod 8 is plugged with the inner wall of the rotating device 6 .
[0026] It should be noted that the clamping block 15 is clamped with the clamping groove 16 to fix the limit plate 5, and the limit rod 8 limits the rotating device 6 during the fixing process of the limit plate 5.
[0027] In a preferred embodiment, the arc clamping block 10 is matched with the inner wall of the gate valve body 1 , and the sealing plate 7 , the sealing block 14 and the sealing sleeve 11 are all tightly fitted with the inner wall of the gate valve body 1 .
[0028] It should be noted that the sealing plate 7 , the sealing block 14 and the sealing sleeve 11 are fitted to the inner wall of the gate valve body 1 , so that the arc clamping block 10 can better seal the gate valve body 1 during placement.
[0029] In a preferred embodiment, the valve stem 3 is threadedly connected to the inner wall of the gate valve body 1 , and the valve plate 4 is matched with the inner wall of the gate valve body 1 .
[0030] It should be noted that the valve stem 3 is threadedly connected to the inner wall of the gate valve body 1 so that the valve stem 3 is limited during placement, and the fluid does not flow out from the connection between the valve plate 4 and the gate valve body 1 when the valve plate 4 is closed.
[0031] In a preferred embodiment, there are four limiting rods 12 , and the four arc blocks 10 are respectively located on the inner walls of the sliding groove 9 .
[0032] It should be noted that the four arc clamping blocks 10 can play a role of limiting when the arc clamping blocks 10 are placed into the inner wall of the gate valve body 1 .
[0033] Working principle: when the gate valve body 1 has not been used for a long time, turning the hand wheel 2 and the valve stem 3 forcefully will cause the connection point between the valve stem 3 and the valve plate 4 to break. The staff will open the limit plate 5 and then accurately place the arc block 10 into the inner wall of the gate valve body 1. By accurately adjusting the rotation of the rotating device 6 and the threaded cylinder 13, it is ensured that the arc block 10 is tightly fitted to the inner wall of the gate valve body 1. The sealing sleeve 11 equipped on the outer wall of the arc block 10 is used to achieve effective sealing of the inner wall of the gate valve body 1 by the arc block 10 during placement, thereby preventing the fluid from leaking from the gap between the arc block 10 and the sealing sleeve 11, thereby avoiding the adverse effect of the valve plate 4 on the normal operation of the equipment when it breaks, and the possible damage caused by the valve plate 4. To avoid serious hazards, the staff needs to rotate the limit plate 5 to drive the rotating rod 17 to rotate on the inner wall of the gate valve body 1. When the clamping block 15 is clamped with the inner wall of the clamping groove 16, the limit rod 8 will automatically insert into the inner wall of the rotating device 6 to fix the rotating device 6. The limiting plate 5 squeezes and limits the rotating device 6 to ensure that the arc clamping block 10 maintains extremely high stability during use. During the use of the entire gate valve body 1, the clamping block 15 and the clamping groove 16 always remain in a clamping state, so that the sealing plate 7 and the sealing block 14 effectively seal the gap between the limit plate 5 and the gate valve body 1, ensuring that the fluid of the gate valve body 1 will not leak from the connection point between the gate valve body 1 and the limit plate 5 when the gate valve body 1 is working.
[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A gate valve with emergency opening and closing function, comprising a gate valve body (1), characterized in that: A hand wheel (2) is provided at the top of the gate valve body (1), a valve stem (3) is fixedly mounted at the bottom of the hand wheel (2), a valve plate (4) is threadedly connected to the bottom of the valve stem (3), a rotating rod (17) is rotatably connected to the inner wall of the gate valve body (1), one end of a limit plate (5) is fixedly mounted on the outer wall of the rotating rod (17), a sealing block (14) is fixedly mounted on the other end of the limit plate (5), a clamping block (15) is fixedly mounted on the end of the sealing block (14) away from the limit plate (5), sealing plates (7) are fixedly mounted on the outer walls of both sides of the limit plate (5), and a limit rod 1 (8) is fixedly mounted on the bottom of the limit plate (5).
2. A gate valve with emergency opening and closing function according to claim 1, characterized in that: The inner wall of the gate valve body (1) is respectively provided with a clamping groove (16) and a sliding groove (9), the inner wall of the gate valve body (1) is provided with an arc clamping block (10), the inner wall of the arc clamping block (10) is threadedly connected with a threaded barrel (13), the top of the threaded barrel (13) is fixedly equipped with a rotating device (6), the outer wall of the arc clamping block (10) is fixedly equipped with a sealing sleeve (11), and the inner wall of the sliding groove (9) is fixedly equipped with a second limit rod (12).
3. A gate valve with emergency opening and closing function according to claim 1, characterized in that: The clamping block (15) is clamped with the inner wall of the clamping groove (16), and the limiting rod (8) is plugged with the inner wall of the rotating device (6).
4. A gate valve with emergency opening and closing function according to claim 2, characterized in that: The arc clamping block (10) is adapted to the inner wall of the gate valve body (1), and the sealing plate (7), the sealing block (14) and the sealing sleeve (11) are all tightly fitted to the inner wall of the gate valve body (1).
5. The gate valve with emergency opening and closing function according to claim 1 is characterized in that: The valve stem (3) is threadedly connected to the inner wall of the gate valve body (1), and the valve plate (4) is adapted to the inner wall of the gate valve body (1).
6. The gate valve with emergency opening and closing function according to claim 2 is characterized in that: There are four limit rods (12) and four arc blocks (10) are respectively located on the inner wall of the sliding groove (9).