Pressure relief valve with clamping device

Abstract

The utility model discloses a pressure relief valve with a clamping device. The pressure relief valve with the clamping device comprises the clamping device and a pressure relief valve body. The clamping device is arranged at the oil outlet end of the pressure relief valve body and comprises an upper clamping block and a lower clamping block, the lower clamping block is connected with the pressure relief valve in a clamped mode, and the upper clamping block is connected with the lower clamping block through a connecting rod; the upper clamping block is driven by the connecting rod to get close to the lower clamping block or the upper clamping block is driven by the connecting rod to get away from the lower clamping block. According to the pressure relief valve, the pressure relief valve and the pipeline connected with the pressure relief valve are locked through the clamping device, the situation that the pipeline connected with the pressure relief valve is impacted by internal liquid and falls off in the using process is avoided, and the using stability of the pressure relief valve is guaranteed advantageously.

Description

Technical Field

[0001] The utility model relates to the field of pressure relief valves, in particular to a pressure relief valve with a clamping device. Background Art

[0002] A pressure relief valve is a device that uses a moving part to open, close or partially block one or more openings or channels to allow liquid flow, air flow or other air flow or a large amount of loose material to flow out, close or be regulated.

[0003] During use, the lubrication pump intermittently supplies lubricating oil from the main channel to the oil outlet pipeline. When the lubrication pump suddenly stops or starts, the flow velocity of the fluid in the pipeline will change drastically, and the liquid momentum will change rapidly, causing the pressure to change significantly, triggering water hammer, and causing the conveying pipeline to shake. During long-term use, the conveying pipeline is at risk of detaching from the pressure relief valve, reducing the stability of the pressure relief valve. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the existing technology. The utility model provides a pressure relief valve with a clamping device. By setting the clamping device, the pressure relief valve and the pipe connected to it are locked, so as to prevent the pipe connected to the pressure relief valve from being impacted by the internal liquid and falling during use, which is conducive to ensuring the stability of the use of the pressure relief valve.

[0005] Accordingly, the present invention provides a pressure relief valve with a clamping device, the pressure relief valve with the clamping device comprising: a clamping device and a pressure relief valve body;

[0006] The clamping device is provided at the oil outlet end of the pressure relief valve body, and the clamping device comprises: an upper clamping block and a lower clamping block, the lower clamping block is clamped with the pressure relief valve, and the upper clamping block is connected to the lower clamping block based on a connecting rod;

[0007] The upper clamping block is driven by the connecting rod to approach the lower clamping block, or the upper clamping block is driven by the connecting rod to move away from the lower clamping block.

[0008] Preferably, the end surface of the upper clamping block close to the lower clamping block is recessed in a direction away from the lower clamping block to form a semicircular upper limit portion.

[0009] Preferably, the end surface of the lower clamping block close to the upper clamping block is recessed in a direction away from the upper clamping block to form a semicircular lower limit portion;

[0010] The upper limit portion and the lower limit portion are combined to form a fixing portion.

[0011] Preferably, an end of the fixing portion close to the pressure relief valve body forms a clamping portion having the same shape as the pressure relief valve body.

[0012] Preferably, a silicone layer is provided on the surface of the upper limit portion and the lower limit portion.

[0013] Preferably, the upper clamping block is provided with a first connecting hole passing through the upper clamping block, and the lower clamping block is provided with a second connecting hole, and the first connecting hole is connected to the second connecting hole based on the connecting rod.

[0014] Preferably, the pressure relief valve body comprises: a first valve body and a second valve body, one end of the first valve body is connected to one end of the second valve body;

[0015] The other end of the first valve body is connected to the oil outlet pipe, and the other end of the second valve body is connected to the oil inlet pipe.

[0016] Preferably, the pressure relief valve body further includes a valve body plug, which is located in a flow cavity formed by the connection of the first valve body and the second valve body, and the valve body plug moves in the flow cavity under force.

[0017] Preferably, the clamping device is located at the connection between the first valve body and the oil outlet pipe and at the connection between the first clamping device, the second valve body and the oil inlet pipe.

[0018] Beneficial effects of the utility model:

[0019] The utility model locks the pressure relief valve and the pipe connected to it by arranging a clamping device, thereby preventing the pipe connected to the pressure relief valve from falling due to the impact of the internal liquid during use, which is beneficial to ensuring the stability of the pressure relief valve. The upper clamping block and the lower clamping block in the utility model are close to or separated from each other, and the distance between the upper clamping block and the lower clamping block is adjusted to adapt to transportation pipes with different radii, thereby enhancing the flexibility of the clamping device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a schematic structural diagram of a pressure relief valve with a clamping device in the present invention;

[0022] Figure 2 This is an exploded view of the pressure relief valve with a clamping device in the present invention;

[0023] Figure 3 It is a structural schematic diagram of the clamping device in the utility model;

[0024] Figure 4 It is a cross-sectional view of the clamping device in the present utility model;

[0025] Figure 5 It is a cross-sectional view of the pressure relief valve in the present utility model.

[0026] In the accompanying drawings, 1. Clamping device; 11. Upper clamping block; 111. Upper limit portion; 112. First connecting hole; 12. Lower clamping block; 121. Lower limit portion; 122. Second connecting hole; 13. Silicone layer; 131. Groove; 14. Connecting rod; 2. Pressure relief valve body; 21. First valve body; 211. Working oil circuit; 212. Return oil circuit; 22. Second valve body; 23. Flow chamber; 24. Valve body plug; 3. Oil inlet pipe; 4. Oil outlet pipe. DETAILED DESCRIPTION

[0027] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Figure 1 The schematic diagram of the structure of the pressure relief valve with a clamping device in the utility model is shown. Figure 2 The schematic diagram of the structure of the new clamping device is shown in FIG. Figure 3 It shows the structural diagram of the upper limit block in the utility model. Figure 4 It shows the structural diagram of the lower limit block in the utility model.

[0029] The pressure relief valve with a clamping device 1 includes: a clamping device 1 and a pressure relief valve body 2; the clamping device 1 is arranged at the oil outlet end of the pressure relief valve body 2, and the clamping device 1 includes: an upper clamping block 11 and a lower clamping block 12, the lower clamping block 12 is clamped with the pressure relief valve, and the upper clamping block 11 is connected to the lower clamping block 12 based on a connecting rod 14; the upper clamping block 11 is driven by the connecting rod 14 to approach the lower clamping block 12 or the upper clamping block 11 is driven by the connecting rod 14 to move away from the lower clamping block 12. The pressure relief valve is used to release excess pressure in the oil circuit system, reduce the pressure in the oil circuit system, and reduce the risk of explosion caused by excessive pressure in the oil circuit system. The clamping device 1 is used to lock the pressure relief valve and the pipe connected to it to prevent the pipe connected to the pressure relief valve from being impacted by the internal liquid and falling during use, which is conducive to ensuring the stability of the pressure relief valve.

[0030] Furthermore, a fixing mechanism is provided on the side wall of the lower clamping block 12, and the fixing mechanism is used to fix the pressure relief valve in a corresponding position. The fixing mechanism can be a clamping boss or a connecting hole with a thread. When the pressure relief valve body 2 is clamped with the clamping device 1, the fixing mechanism can install the pressure relief valve in the corresponding position. When the fixing mechanism is a clamping boss, the clamping boss can be clamped with the connecting hole, so that the entire pressure relief valve is installed in the corresponding position and the risk of the pressure relief valve swinging due to hydraulic reasons during use is reduced. When the fixing mechanism is a connecting hole with a thread, the connecting hole is fixed in the corresponding position based on a screw, so that the entire pressure relief valve is installed in the corresponding position and the risk of the pressure relief valve swinging due to hydraulic reasons during use is reduced.

[0031] Furthermore, the end surface of the upper clamping block 11 close to the lower clamping block 12 is recessed in the direction away from the lower clamping block 12 to form a semicircular upper limit portion 111. The semicircular shape of the upper limit portion 111 can fit the delivery pipe used in daily life. The semicircular shape of the upper limit portion 111 can form a tighter fit with the surface of the delivery pipe, increase the contact area between the upper limit portion 111 and the delivery pipe, and then increase the friction between the upper limit portion 111 and the delivery pipe, ensuring that the upper limit portion 111 remains in close contact with the delivery pipe during use, reducing the risk of the delivery pipe becoming disconnected.

[0032] Furthermore, the end surface of the lower clamping block 12, which is adjacent to the upper clamping block 11, is recessed away from the upper clamping block 11 to form a semicircular lower stop 121. The upper and lower stop 111 and 121 combine to form a fixing portion. The semicircular shape of the lower stop 121 allows for a tighter fit with the surface of the delivery pipe, increasing the contact area between the lower stop 121 and the delivery pipe, thereby increasing the friction between the upper and lower stop 111, 121, ensuring that the upper and lower stop 111 maintain close contact with the delivery pipe during use, reducing the risk of the delivery pipe becoming disconnected. The upper limit portion 111 and the lower limit portion 121 are combined to form a fixed portion, and a circular accommodating cavity is provided in the fixed portion. The delivery pipe is inserted into the accommodating cavity so that the inner wall of the fixed portion fits tightly with the delivery pipe. The delivery pipe is surrounded by the upper limit portion 111 and the lower limit portion 121 on all sides, ensuring that the fixed portion and the delivery pipe remain in close contact, thereby reducing the risk of the delivery pipe becoming disconnected.

[0033] Furthermore, one end of the fixing portion close to the pressure relief valve body 2 forms a clamping portion having the same shape as the pressure relief valve body 2. The contour, size, and curvature of the clamping portion closely match those of the pressure relief valve body 2, thereby ensuring a tight fit between the two. When the pressure relief valve body 2 is clamped onto the corresponding clamping portion, the clamping portion limits the range of movement of the pressure relief valve, and the side walls of the clamping portion limit the left and right swinging of the pressure relief valve. The clamping portion helps prevent the body from accidentally moving during operation, and can also absorb and disperse vibrations and impacts to a certain extent, protecting the pressure relief valve from damage.

[0034] Furthermore, a silicone layer 13 is provided on the surface of the upper limit portion 111 and the lower limit portion 121. The silicone layer 13 is used to protect the oil inlet pipe 3 or the oil outlet pipe 4 connected to the pressure relief valve. The silicone layer 13 has good elasticity, can resist compression and stretching by external forces, and is not easily deformed or broken. That is, when the oil outlet pipe 4 or the oil inlet pipe 3 swings due to the impact of liquid, the silicone layer 13 can absorb the kinetic energy of the swing of the oil outlet pipe 4 or the oil inlet pipe 3, so that the oil outlet pipe 4 or the oil inlet pipe 3 is stably connected to the pressure relief valve, ensuring stable operation of the entire oil circuit system.

[0035] Furthermore, any of the silicone layers 13 is recessed to form a plurality of grooves 131, and the plurality of grooves 131 are distributed in an array on the corresponding silicone layer 13. The plurality of grooves 131 are used to increase the friction between the silicone layer 13 and the corresponding oil outlet pipe 4 or oil inlet pipe 3. When the upper limit portion 111 and the lower limit portion 121 simultaneously clamp the corresponding oil outlet pipe 4 or oil inlet pipe 3, the silicone layer 13 is squeezed, causing the plurality of grooves 131 to deform, thereby increasing the friction between the silicone layer 13 and the corresponding oil outlet pipe 4 or oil inlet pipe 3, and reducing the risk of the oil outlet pipe 4 or the oil inlet pipe 3 being detached from the pressure relief valve.

[0036] Furthermore, both ends of the upper clamping block 11 are provided with first connecting holes 112 that pass through the upper clamping block 11, and the lower clamping block 12 is provided with second connecting holes 122. The first connecting holes 112 are connected to the second connecting holes 122 based on the connecting rod 14. In this embodiment, the connecting rod 14 is a threaded rod. The upper clamping block 11 has two first connecting holes 112, and the lower clamping block 12 has two second connecting holes 122. The two first connecting holes 112 and the two second connecting holes 122 correspond one to one. That is, one threaded rod is threadedly connected to the first connecting holes 112 and the second connecting holes 122, so that the upper clamping block 11 and the lower clamping block 12 are tightly connected. When the threaded rod is threadedly connected only to the first connecting holes 112, the distance between the upper clamping block 11 and the lower clamping block 12 can be adjusted to accommodate transport pipelines of different radii, thereby enhancing the flexibility of the clamping device 1.

[0037] Furthermore, the pressure relief valve body 2 includes a first valve body 21 and a second valve body 22. One end of the first valve body 21 is connected to one end of the second valve body 22. The other end of the first valve body 21 is connected to the oil outlet pipe 4, and the other end of the second valve body 22 is connected to the oil inlet pipe 3. The first valve body 21 and the second valve body 22 are connected to form a flow chamber 23. The flow chamber 23 is connected to the oil outlet pipe 4 and the oil inlet pipe 3. This allows liquid to enter the flow chamber 23 from the oil outlet pipe 4, then flow from the flow chamber 23 into the oil outlet pipe 4, and then flow to the next component, which helps ensure the stability of the entire oil circuit system.

[0038] It should be noted that the first valve body 21 has a working oil circuit 211 and a return oil circuit 212. The working oil circuit 211 is connected to the flow chamber 23, and the return oil circuit 212 is connected to the flow chamber 23. The return oil circuit 212 is used to adjust the oil circuit system pressure, and the working oil circuit 211 is used to control the oil circuit to enter the next component.

[0039] Furthermore, the pressure relief valve body 2 further includes a valve body plug 24 , which is located in a flow cavity 23 formed by the connection of the first valve body 21 and the second valve body 22 , and moves in the flow cavity 23 under force. The valve body plug 24 is used to switch the working oil circuit 211 and the return oil circuit 212, that is, when the valve body plug 24 blocks the return oil circuit 212, the liquid can only flow from the working oil circuit 211 to the next component; when the liquid supply inside the oil circuit system stops and the valve body plug 24 is away from the oil inlet of the return oil circuit 212, the air pressure inside the oil circuit system increases, and the air pressure moves the valve body plug 24 toward the oil inlet away from the return oil circuit 212. At the same time, the air pressure in the oil circuit system causes the pressure and liquid in the oil circuit system to flow out of the return oil circuit 212, thereby releasing the internal air pressure and excess liquid in the return oil circuit 212, reducing the risk of accidents caused by excessive air pressure in the oil channel.

[0040] Furthermore, the clamping device 1 is located at the connection between the first valve body 21 and the oil outlet pipe 4, and at the connection between the second valve body 22 and the oil inlet pipe 3. The clamping device 1 ensures that the connection between the valve body and the connecting pipe is stable and reliable. In a fluid system, the connection between the pressure relief valve body 2 and the delivery pipeline is often subject to high pressure and vibration. The clamping device 1 can effectively reduce the risk of the connection between the first valve body 21 and the oil outlet pipe 4 becoming loose or leaking due to excessive force or vibration. Similarly, the clamping device 1 can effectively reduce the risk of the connection between the second valve body 22 and the oil inlet pipe 3 becoming loose or leaking due to excessive force or vibration.

[0041] To sum up, the utility model locks the pressure relief valve and the pipe connected to it by setting a clamping device, thereby preventing the pipe connected to the pressure relief valve from falling due to the impact of the internal liquid during use, which is beneficial to ensuring the stability of the use of the pressure relief valve; the upper clamping block and the lower clamping block in the utility model are close to or separated from each other, and the distance between the upper clamping block and the lower clamping block is adjusted to adapt to transportation pipes of different radii, thereby enhancing the flexibility of the clamping device.

[0042] In addition, the above is a detailed introduction to a pressure relief valve with a clamping device provided in an embodiment of the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for general technical personnel in this field, based on the idea of ​​the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A pressure relief valve with a clamping device, characterized in that: The pressure relief valve with a clamping device comprises: a clamping device and a pressure relief valve body; The clamping device is provided at the oil outlet end of the pressure relief valve body, and the clamping device comprises: an upper clamping block and a lower clamping block, the lower clamping block is clamped with the pressure relief valve body, and the upper clamping block is connected to the lower clamping block based on a connecting rod; The upper clamping block is driven by the connecting rod to approach the lower clamping block, or the upper clamping block is driven by the connecting rod to move away from the lower clamping block.

2. The pressure relief valve with a clamping device according to claim 1, characterized in that The end surface of the upper clamping block close to the lower clamping block is recessed in a direction away from the lower clamping block to form a semicircular upper limit portion.

3. The pressure relief valve with a clamping device according to claim 2, characterized in that The end surface of the lower clamping block close to the upper clamping block is recessed in a direction away from the upper clamping block to form a semicircular lower limit portion; The upper limit portion and the lower limit portion are combined to form a fixing portion.

4. The pressure relief valve with a clamping device according to claim 3, characterized in that An end of the fixing portion close to the pressure relief valve body forms a clamping portion having the same shape as the pressure relief valve body.

5. The pressure relief valve with a clamping device according to claim 3, characterized in that: A silicone layer is provided on the surfaces of the upper limit portion and the lower limit portion.

6. The pressure relief valve with a clamping device according to claim 5, characterized in that Any of the silicone layers is sunken to form a plurality of grooves, and the plurality of grooves are arrayed on the corresponding silicone layer.

7. The pressure relief valve with a clamping device according to claim 1, characterized in that The upper clamping block is provided with a first connecting hole penetrating the upper clamping block, and the lower clamping block is provided with a second connecting hole, wherein the first connecting hole is connected to the second connecting hole based on the connecting rod.

8. The pressure relief valve with a clamping device according to claim 1, characterized in that The pressure relief valve body comprises: a first valve body and a second valve body, one end of the first valve body is connected to one end of the second valve body; The other end of the first valve body is connected to the oil outlet pipe, and the other end of the second valve body is connected to the oil inlet pipe.

9. The pressure relief valve with a clamping device according to claim 8, characterized in that The pressure relief valve body further includes a valve body rubber plug, which is located in a flow cavity formed by the connection of the first valve body and the second valve body, and the valve body rubber plug is forced to move in the flow cavity.

10. The pressure relief valve with a clamping device according to claim 8, characterized in that The clamping device is located at the connection between the first valve body and the oil outlet pipe and at the connection between the first clamping device and the second valve body and the oil inlet pipe.

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