Gate valve with pressure relief function
By integrating a gate valve design with a pressure relief function, the problem of traditional gate valves being unable to automatically relieve pressure under high pressure conditions is solved, achieving automatic pressure relief, preventing pipeline damage, simplifying the system structure, and reducing costs.
Patent Information
- Application Number
- CN202520399307.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-08
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-03-08
AI Technical Summary
Traditional gate valves cannot automatically release excessive pressure when fluid pressure rises abnormally, which can damage the pipeline system, pose safety hazards, and increase system complexity and cost.
A gate valve integrating the basic functions of a gate valve and a pressure relief function was designed. The opening and closing of the gate valve is controlled by a rubber plug and an adjusting mechanism, and the pressure is automatically released by a pressure relief mechanism when the pressure is too high. Automatic pressure relief is achieved by using an arc-shaped baffle and a telescopic mechanism.
It enables automatic pressure relief under high pressure conditions, prevents pipeline damage, simplifies the system structure, reduces costs, and improves system reliability.
Smart Images
Figure CN223594994U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to valve technical field more specifically, the utility model relates to a gate valve with pressure relief function. BACKGROUND
[0002] In various fluid conveying systems, the gate valve as a commonly used cutoff device plays an important role in controlling fluid on-off. However, the traditional gate valve has some problems in actual use. When the fluid pressure in the pipeline abnormally rises, for example, during system startup, stop or failure, the traditional gate valve cannot automatically release the high pressure, which may cause damage to the pipeline system, and even cause safety accidents.
[0003] To solve this problem, it is usually necessary to additionally install a pressure relief device, such as a safety valve, in the pipeline system, which not only increases the complexity and cost of the system, but also occupies more space, and the combination of multiple valves may have coordination problems, reducing the reliability of the system. Therefore, we have developed a new type of gate valve which integrates the basic functions of the gate valve and the pressure relief function, which has important practical significance. SUMMARY
[0004] In order to overcome the shortcomings of the prior art, the utility model provides a gate valve with pressure relief function to solve the problems in the background art.
[0005] To achieve the above purpose, the utility model provides the following technical scheme: a gate valve with pressure relief function, comprising a valve body, a sleeve fixed on the upper side wall of the valve body, a pressure relief mechanism arranged between the sleeve and the valve body, a baffle fixed in the valve body, a water inlet hole formed in the baffle, a rubber plug placed above the water inlet hole, a lower rod fixed above the rubber plug, the lower rod penetrating through the side wall of the valve body and arranged in the sleeve, and an adjusting mechanism connected to one end of the lower rod, and a sealing ring fixed at the contact between the side wall of the valve body and the lower rod.
[0006] As a preferred technical scheme of the utility model, annular mounting plates are fixed at both ends of the valve body, and a plurality of mounting holes are formed in the annular mounting plates.
[0007] As a preferred technical scheme of the utility model, the pressure relief mechanism comprises two pressure relief holes, two arc-shaped baffles and an annular rotating plate, the annular rotating plate is sleeved outside the sleeve, and the annular rotating plate is connected with the sleeve through threads, an annular sliding groove is formed in the outer wall of the annular rotating plate, an annular sliding plate is slidably arranged in the annular sliding groove, side plates are fixed on both sides of the annular sliding plate, two pressure relief holes are formed in the side walls of the valve body on both sides of the sleeve, two arc-shaped baffles are placed above the two pressure relief holes, sealing rubber pads are fixed at the bottoms of the arc-shaped baffles, and telescopic mechanisms are connected between the upper sides of the two arc-shaped baffles and the two side plates.
[0008] As a preferred technical scheme of the utility model, the telescopic mechanism comprises a sliding hole and a sliding rod, the sliding hole is arranged on the side plate, one end of the sliding rod is fixed above the arc-shaped baffle, the other end of the sliding rod passes through the sliding hole and is fixed with a rod limiting plate, a spring is arranged on one side of the sliding rod, one end of the spring is fixed above the arc-shaped baffle, and the other end of the spring is fixed below the side plate.
[0009] As a preferred technical scheme of the utility model, the annular rotating plate is fixed with an L-shaped rotating rod on one side.
[0010] As a preferred technical scheme of the utility model, the adjusting mechanism comprises a nut and a threaded rod, the nut is embedded above the sleeve, one end of the threaded rod is rotatably connected above the lower rod, the other end of the threaded rod passes through the nut and is fixed with a rotating handle, and the threaded rod and the nut are connected through threads.
[0011] As a preferred technical scheme of the utility model, the sleeve is filled with a sealing filler.
[0012] Compared with the prior art, the utility model has the beneficial effects as follows:
[0013] 1、 the rubber plug is placed above the water inlet hole, so that the gate valve can be closed, the adjusting mechanism can drive the lower rod to move up and down, the lower rod moves up and down to drive the rubber plug to move up and down, so that the gate valve can be opened.
[0014] 2、 when the pressure in the gate valve is too large, the pressure relief mechanism can release the pressure, so as to prevent the pipeline from being damaged. DRAWINGS
[0015] Fig. 1 It is a perspective structural schematic view of the utility model of a gate valve with pressure relief function;
[0016] Fig. 2 It is a front view structural schematic view of the utility model of a gate valve with pressure relief function;
[0017] Fig. 3 It is an enlarged schematic view of the A part structure of the utility model of a gate valve with pressure relief function;
[0018] Fig. 4 It is a telescopic mechanism structural schematic view of the utility model of a gate valve with pressure relief function.
[0019] In the diagram: 1. Valve body; 2. Annular mounting plate; 3. Mounting hole; 4. Inner baffle; 5. Water inlet; 6. Rubber plug; 7. Sleeve; 8. Lower rod; 9. Telescopic mechanism; 91. Sliding hole; 92. Sliding rod; 93. Spring; 94. Rod limit plate; 10. Threaded rod; 11. Nut; 12. Handle; 13. Annular rotating plate; 14. Side plate; 15. Pressure relief hole; 16. Arc-shaped baffle; 17. Sealing rubber gasket; 18. Annular groove; 19. Annular sliding plate; 20. L-shaped rotating rod. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] like Figs. 1 to 4 As shown, this utility model provides a gate valve with a pressure relief function, including a valve body 1, a sleeve 7 fixed to the upper side wall of the valve body 1, a pressure relief mechanism between the sleeve 7 and the valve body 1, a baffle 4 fixed inside the valve body 1, an inlet hole 5 on the baffle 4, a rubber plug 6 placed above the inlet hole 5, which facilitates the closure of the gate valve by placing the rubber plug 6 on the inlet hole 5, a lower rod 8 fixed above the rubber plug 6, one end of the lower rod 8 passing through the side wall of the valve body 1 and set inside the sleeve 7, and an adjustment mechanism connected to the other end of the lower rod 8, a sealing ring fixed at the contact point between the side wall of the valve body 1 and the lower rod 8, the adjustment mechanism can drive the lower rod 8 to move up and down, the lower rod 8 can drive the rubber plug 6 to move up and down, thereby opening the gate valve, when the pressure inside the gate valve is too high, the pressure can be released by the pressure relief mechanism.
[0022] The valve body 1 is fixed with annular mounting plates 2 at both ends, and the annular mounting plates 2 are provided with multiple mounting holes 3, which facilitate the installation of the valve body 1.
[0023] The pressure relief mechanism comprises two pressure relief holes 15, two arc-shaped baffles 16 and a ring-shaped rotating plate 13. The ring-shaped rotating plate 13 is sleeved outside the sleeve 7 and is connected with the sleeve 7 through threads. An L-shaped rotating rod 20 is fixed on one side above the ring-shaped rotating plate 13. A ring-shaped sliding groove 18 is formed on the outer wall of the ring-shaped rotating plate 13, and a ring-shaped sliding plate 19 is slidably arranged in the ring-shaped sliding groove 18. Side plates 14 are fixed on both sides of the ring-shaped sliding plate 19. The two pressure relief holes 15 are respectively formed on the side walls of the valve body 1 on both sides of the sleeve 7. The two arc-shaped baffles 16 are respectively placed above the two pressure relief holes 15, and the arc-shaped baffles 16 are fixed with sealing rubber pads 17 at the bottom. The sealing rubber pads 17 can increase the sealing between the arc-shaped baffles 16 and the pressure relief holes 15. The two arc-shaped baffles 16 are connected with the two side plates 14 through telescopic mechanisms 9. The arc-shaped baffles 16 are placed above the pressure relief holes 15 to close them. The telescopic mechanisms 9 can exert a force on the arc-shaped baffles 16. When the force in the valve body 1 is greater than the force exerted by the telescopic mechanisms 9 on the arc-shaped baffles 16, the arc-shaped baffles 16 will be lifted to open the pressure relief holes 15. The pressure in the valve body 1 can be released through the pressure relief holes 15.
[0024] The telescopic mechanism 9 comprises a sliding hole 91 and a sliding rod 92. The sliding hole 91 is formed on the side plate 14. One end of the sliding rod 92 is fixed above the arc-shaped baffle 16. The other end of the sliding rod 92 penetrates through the sliding hole 91 and is fixed with a rod limiting plate 94. A spring 93 is sleeved on one side of the sliding rod 92. One end of the spring 93 is fixed above the arc-shaped baffle 16, and the other end of the spring 93 is fixed below the side plate 14. The ring-shaped rotating plate 13 can be moved up and down outside the sleeve 7 by rotating the ring-shaped rotating plate 13. The side plate 14 can be moved up and down on the sliding rod 92 by moving the ring-shaped rotating plate 13 up and down, so as to change the compression degree of the spring 93, and thus the force on the arc-shaped baffle 16 can be changed.
[0025] The adjusting mechanism comprises a nut 11 and a threaded rod 10. The nut 11 is embedded above the sleeve 7. One end of the threaded rod 10 is rotatably connected above the lower rod 8. The other end of the threaded rod 10 penetrates through the nut 11 and is fixed with a rotating handle 12. The threaded rod 10 is connected with the nut 11 through threads. The threaded rod 10 can be moved in the nut 11 by rotating the rotating handle 12. The lower rod 8 can be moved up and down by moving the threaded rod 10.
[0026] The sleeve 7 is filled with a sealing filler. The sealing filler can increase the sealing between the sleeve 7 and the valve body 1.
[0027] The working principle and use flow of the utility model: through the rubber plug 6 is placed above the water inlet hole 5, the gate valve can be closed, through rotating the handle 12 can drive the threaded rod 10 moves in the nut 11, the threaded rod 10 moves can drive the lower pole 8 moves up and down, the lower pole 8 moves up and down can drive the rubber plug 6 moves up and down, so as to open the gate valve, through the telescopic mechanism 9 can exert a force to the arc baffle 16, when the force in the valve body 1 is greater than the force that the telescopic mechanism 9 exerts to the arc baffle 16, the arc baffle 16 will be lifted to open the pressure relief hole 15, the pressure in the valve body 1 can be released through the pressure relief hole 15, so as to prevent the pipeline from being damaged.
[0028] It should be noted that in this document, the terms "one" and "the" are used to describe various entities and operations, not necessarily requiring or implying that these entities or operations are in the same location, or are of the same type. Also, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.
[0029] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A gate valve with pressure relief function, comprising a valve body (1), characterized in that: A sleeve (7) is fixed to the upper side wall of the valve body (1). A pressure relief mechanism is provided between the sleeve (7) and the valve body (1). A baffle (4) is fixed inside the valve body (1). A water inlet hole (5) is opened on the baffle (4). A rubber plug (6) is placed above the water inlet hole (5). A lower rod (8) is fixed above the rubber plug (6). One end of the lower rod (8) passes through the side wall of the valve body (1) and is set inside the sleeve (7). An adjustment mechanism is connected to one end of the lower rod (8). A sealing ring is fixed at the contact point between the side wall of the valve body (1) and the lower rod (8).
2. A gate valve with pressure relief function according to claim 1, characterized in that: Both ends of the valve body (1) are fixed with annular mounting plates (2), and the annular mounting plates (2) are provided with multiple mounting holes (3).
3. A gate valve with pressure relief function according to claim 1, characterized in that: The pressure relief mechanism includes two pressure relief holes (15), two arc-shaped baffles (16), and an annular rotating plate (13). The annular rotating plate (13) is sleeved on the outside of the sleeve (7), and the annular rotating plate (13) and the sleeve (7) are connected by threads. An annular groove (18) is provided on the outer wall of the annular rotating plate (13), and an annular sliding plate (19) is slidably arranged in the annular groove (18). Side plates (14) are fixed on both sides of the annular sliding plate (19). The two pressure relief holes (15) are respectively opened on the side walls of the valve body (1) on both sides of the sleeve (7). The two arc-shaped baffles (16) are respectively placed above the two pressure relief holes (15), and a sealing rubber gasket (17) is fixed at the bottom of the arc-shaped baffles (16). A telescopic mechanism (9) is connected between the top of the two arc-shaped baffles (16) and the two side plates (14).
4. A gate valve with pressure relief function according to claim 3, characterized in that: The telescopic mechanism (9) includes a sliding hole (91) and a sliding rod (92). The sliding hole (91) is opened on the side plate (14). One end of the sliding rod (92) is fixed above the arc-shaped baffle (16). The other end of the sliding rod (92) passes through the sliding hole (91) and is fixed with a rod limiting plate (94). A spring (93) is sleeved on one side of the sliding rod (92). One end of the spring (93) is fixed above the arc-shaped baffle (16), and the other end of the spring (93) is fixed below the side plate (14).
5. A gate valve with pressure relief function according to claim 3, characterized in that: An L-shaped rotating rod (20) is fixed on one side above the annular rotating plate (13).
6. A gate valve with pressure relief function according to claim 1, characterized in that: The adjustment mechanism includes a nut (11) and a threaded rod (10). The nut (11) is embedded above the sleeve (7). One end of the threaded rod (10) is rotatably connected above the lower rod (8). The other end of the threaded rod (10) passes through the nut (11) and is fixed with a handle (12). The threaded rod (10) and the nut (11) are connected by threads.
7. A gate valve with pressure relief function according to claim 1, characterized in that: The sleeve (7) is filled with a sealing filler.