A valve cover fixing structure of a high-sealing dome valve

Abstract

The application belongs to the technical field of dome valves, and discloses a valve cover fixing structure of a high-sealing dome valve, which comprises a valve body, a valve cover is arranged above the valve body, a valve core is rotatably arranged in the valve body, a driving mechanism for driving the valve core to rotate is arranged outside the valve body, a first connecting hole is formed through the upper surface of the valve body, a second connecting hole is formed through the upper surface of the valve cover, and a connecting mechanism for connecting the valve body and the valve cover is arranged between the valve body and the valve cover. The application has the effect of reducing the working difficulty of workers.

Description

Technical Field

[0001] This utility model relates to the field of dome valve technology, and in particular to a valve cover fixing structure for a high-sealing dome valve. Background Technology

[0002] The high-sealing dome valve is a type of dome valve characterized by its high sealing performance. It uses a diaphragm and valve seat sealing method, which can effectively prevent material leakage and gas leakage. This type of valve is widely used in pneumatic conveying systems. It can cut off the flow of materials entering the pressure tank or the static material column and close to achieve a seal.

[0003] When installing the dome valve, the threaded holes on the valve cover must be aligned with the threaded holes on the valve body. The valve body and valve cover are then secured together with bolts. Since the sealing rings inside the valve body need frequent replacement, multiple bolts must be unscrewed simultaneously during replacement, making the process difficult and increasing the workload for operators. Utility Model Content

[0004] To solve the above problems, this utility model provides a valve cover fixing structure for a high-sealing dome valve.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a valve cover fixing structure for a high-sealing dome valve, including a valve body, a valve cover installed on the top of the valve body, a valve core rotatably disposed inside the valve body, a driving mechanism for driving the valve core to rotate outside the valve body, a first connecting hole penetrating through the upper surface of the valve body, a second connecting hole penetrating through the upper surface of the valve cover, and a connecting mechanism for connecting the valve body and the valve cover together.

[0006] By adopting the above technical solution, when workers need to connect the valve cover and the valve body, they connect the valve cover and the valve body through the connecting mechanism. Subsequently, the valve cover and the valve body are separated from each other through the connecting mechanism. In this process, the connecting mechanism reduces the difficulty for workers to disassemble the valve cover, thereby reducing the difficulty of their work.

[0007] Furthermore, the upper surface of the valve body is provided with a plurality of mounting holes arranged in a circumferential array, and the inner wall of each of the mounting holes is provided with a plurality of fixing holes arranged in a circumferential array. The connecting mechanism includes a mounting rod slidably disposed in the mounting hole, a fixing rod slidably disposed in the fixing hole, and a first spring fixedly disposed on the side wall of the fixing rod. The other end of the first spring is fixedly disposed on the inner wall of the fixing hole. The outer wall of the mounting rod is provided with a plurality of first blocking holes arranged in a circumferential array. The fixing rod is slidably connected to the first blocking holes. The mounting rod is fixed to the valve cover. The end of the fixing rod away from the first spring is provided with a rounded corner.

[0008] Furthermore, the valve cover and the upper surface of the mounting rod are both provided with a movable hole, which is connected to the first blocking hole. A movable rod is slidably disposed in the movable hole, and a plurality of second blocking holes are arranged in a circumferential array on the outer wall of the movable rod. The fixed rod is slidably connected to the second blocking holes.

[0009] By adopting the above technical solution, when the operator needs to disassemble the valve cover, they need to move the movable rod downwards, causing the inner wall of the second blocking hole to press against the rounded corner, thus allowing the fixed rod to slide closer to the fixed hole and separate from the second blocking hole. Then, the operator moves the valve cover upwards, causing the mounting rod to slide upwards under the action of the valve cover, causing the inner wall of the first blocking hole to press against the fixed rod, thus allowing the fixed rod to slide closer to the fixed hole and separate from the first blocking hole. The operator can then remove the mounting rod from the mounting hole. This process reduces the difficulty of disassembling the valve cover and thus reduces the workload for the operator. Furthermore, when the operator needs to install the valve cover, the mounting rod slides into the mounting hole, aligning the fixed rod, the first blocking hole, and the second blocking hole, allowing the fixed rod to slide into the first and second blocking holes, thus completing the installation of the valve cover.

[0010] Furthermore, a second spring is fixedly installed on the inner bottom wall of the movable hole, and the other end of the second spring is fixedly installed on the bottom surface of the movable rod.

[0011] By adopting the above technical solution, when the worker moves the installation rod outside the installation hole, the movable rod slides upward under the action of the second spring, thereby aligning the first blocking hole and the second blocking hole. In this process, the difficulty for the worker to reset the movable rod is reduced, thus reducing the difficulty of the worker's work.

[0012] Furthermore, a limiting groove is formed on the inner wall of the movable hole, and a limiting component is fixedly provided on the outer wall of the movable rod, with the limiting component slidably connected to the limiting groove.

[0013] By adopting the above technical solution, when the movable rod slides, the limiting component slides synchronously with the movable rod under the action of the movable rod. During this process, the limiting component limits the movable rod, thereby reducing the probability of the movable rod rotating and thus improving the stability of the device.

[0014] Furthermore, a blocking rod is fixedly installed on the inner bottom wall of the movable hole, and the second spring is sleeved on the outer wall of the blocking rod.

[0015] By adopting the above technical solution, the blocking rod blocks the moving rod, thereby reducing the probability that the moving rod will slide completely into the moving hole, thus improving the stability of the device.

[0016] Furthermore, a sealant is applied between the valve cover and the valve body.

[0017] By adopting the above technical solution, the sealant improves the sealing performance between the valve cover and the valve body, thereby improving the overall sealing performance of the valve.

[0018] Furthermore, a rubber pad is fixedly provided on the upper surface of the movable rod.

[0019] By adopting the above technical solution, the rubber pad reduces the difficulty for workers to press down the movable rod, thereby reducing the difficulty of their work.

[0020] In summary, this utility model has the following beneficial effects:

[0021] 1. In this application, when the operator needs to connect the valve cover and the valve body, the operator connects the valve cover and the valve body through a connecting mechanism. Subsequently, the valve cover and the valve body are separated from each other through the valve cover and the valve body. In this process, the connecting mechanism reduces the difficulty for the operator to disassemble the valve cover, thereby reducing the difficulty of the operator's work;

[0022] 2. In this application, when the operator needs to disassemble the valve cover, the operator moves the movable rod downwards, causing the inner wall of the second blocking hole to abut against the rounded corner, thereby causing the fixed rod to slide closer to the fixed hole, thus separating the fixed rod from the second blocking hole. At this time, the operator moves the valve cover upwards, causing the mounting rod to slide upwards under the action of the valve cover, causing the inner wall of the first blocking hole to abut against the fixed rod, thereby causing the fixed rod to slide closer to the fixed hole, thus separating the fixed rod from the first blocking hole. The operator can then remove the mounting rod from the mounting hole. This process reduces the difficulty of disassembling the valve cover, thus reducing the workload for the operator. Furthermore, when the operator needs to install the valve cover, the operator slides the mounting rod into the mounting hole, aligning the fixed rod, the first blocking hole, and the second blocking hole, allowing the fixed rod to slide into the first and second blocking holes, thus completing the installation of the valve cover.

[0023] 3. In this application, when the worker moves the installation rod outside the installation hole, the movable rod slides upward under the action of the second spring, thereby making the first blocking hole and the second blocking hole face each other. In this process, the difficulty of the worker resetting the movable rod is reduced, thereby reducing the difficulty of the worker's work. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0025] Figure 2 This is a cross-sectional structural diagram of the connecting mechanism in an embodiment of this utility model;

[0026] Figure 3 yes Figure 2 A magnified structural diagram of A in the middle;

[0027] Figure 4 This is a schematic diagram of the structure of the mounting rod and the movable rod in an embodiment of this utility model.

[0028] In the diagram: 1. Valve body; 11. Valve cover; 12. Valve core; 13. First connecting hole; 14. Second connecting hole; 2. Mounting hole; 21. Fixing hole; 22. First blocking hole; 23. Movable hole; 24. Second blocking hole; 3. Connecting mechanism; 31. Mounting rod; 32. Fixing rod; 33. First spring; 34. Rounded corner; 4. Movable rod; 5. Second spring; 6. Limiting groove; 61. Limiting component; 7. Blocking rod; 8. Rubber pad. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] like Figure 1-4 As shown in the figure, this application discloses a valve cover fixing structure for a high-sealing dome valve, including a valve body 1, a valve cover 11, a valve core 12, a connecting mechanism 3, a movable rod 4, a second spring 5, and a limiting member 61. The valve cover 11 is installed above the valve body 1, and a first connecting hole 13 is formed through the upper surface of the valve body 1, while a second connecting hole 14 is formed through the upper surface of the valve cover 11. A driving mechanism (not shown in the figure) is disposed outside the valve body 1 and is used to drive the valve core 12 to rotate.

[0031] When the operator needs to connect the valve cover 11 to the valve body 1, the operator connects the valve cover 11 to the valve body 1 through the connecting mechanism 3. Subsequently, the valve cover 11 is separated from the valve body 1 through the connecting mechanism 3. In this process, the connecting mechanism 3 reduces the difficulty for the operator to disassemble the valve cover 11, thereby reducing the difficulty of the operator's work.

[0032] The upper surface of the valve body 1 has a plurality of mounting holes 2 arranged in a circumferential array, and the inner walls of the mounting holes 2 each have a plurality of fixing holes 21 arranged in a circumferential array. A connecting mechanism 3 is disposed between the valve body 1 and the valve cover 11 to connect the valve body 1 and the valve cover 11. The connecting mechanism 3 includes a mounting rod 31, a fixing rod 32, and a first spring 33. The mounting rod 31 is a cylindrical rod with a vertical axis. The mounting rod 31 is slidably disposed in the mounting hole 2 and is fixed to the valve cover 11. The outer wall of the mounting rod 31 has a plurality of first blocking holes 22 arranged in a circumferential array. The fixing rod 32 is a cylindrical rod with a horizontal axis. The fixing rod 32 is slidably disposed in the fixing hole 21 and is slidably connected to the first blocking holes 22. The first spring 33 is fixedly disposed on the side wall of the fixing rod 32, and the other end of the first spring 33 is fixedly disposed on the inner wall of the fixing hole 21. The end of the fixing rod 32 away from the first spring 33 has a rounded corner 34.

[0033] The valve cover 11 and the upper surface of the mounting rod 31 are both provided with a movable hole 23, which is connected to the first blocking hole 22. The movable rod 4 is a round rod structure, and its axis coincides with the axis of the mounting rod 31. Multiple second blocking holes 24 are arranged in a circular array on the outer wall of the movable rod 4, and the fixed rod 32 is slidably connected to the second blocking holes 24.

[0034] When the operator needs to disassemble the valve cover 11, they need to move the movable rod 4 downwards, causing the inner wall of the second blocking hole 24 to press against the rounded corner 34, thus causing the fixed rod 32 to slide closer to the fixed hole 21, thereby separating the fixed rod 32 from the second blocking hole 24. Then, the operator moves the valve cover 11 upwards, causing the mounting rod 31 to slide upwards under the action of the valve cover 11, causing the inner wall of the first blocking hole 22 to press against the fixed rod 32, thus causing the fixed rod 32 to slide closer to the fixed hole 21, thereby separating the fixed rod 32 from the first blocking hole 22. The operator can then remove the mounting rod 31 from the mounting hole 2. This process reduces the difficulty of disassembling the valve cover 11, thus reducing the workload for the operator. Furthermore, when the operator needs to install the valve cover 11, the operator slides the mounting rod 31 into the mounting hole 2, aligning the fixed rod 32, the first blocking hole 22, and the second blocking hole 24, allowing the fixed rod 32 to slide into the first blocking hole 22 and the second blocking hole 24, thus completing the installation of the valve cover 11.

[0035] One end of the second spring 5 is fixedly mounted on the inner bottom wall of the movable hole 23, and the other end of the second spring 5 is fixedly mounted on the bottom surface of the movable rod 4.

[0036] When the worker moves the mounting rod 31 outside the mounting hole 2, the movable rod 4 slides upward under the action of the second spring 5, thereby aligning the first blocking hole 22 and the second blocking hole 24. In this process, the difficulty for the worker to reset the movable rod 4 is reduced, thus reducing the difficulty of the worker's work.

[0037] A limiting groove 6 is provided on the inner wall of the movable hole 23, and a limiting member 61 is fixedly installed on the outer wall of the movable rod 4. The limiting member 61 is slidably connected to the limiting groove 6.

[0038] When the movable rod 4 slides, the limiting member 61 slides synchronously with the movable rod 4 under the action of the movable rod 4. During this process, the limiting member 61 limits the movable rod 4, thereby reducing the probability of the movable rod 4 rotating and thus improving the stability of the device.

[0039] To improve the stability of the device, a blocking rod 7 is fixedly installed on the inner bottom wall of the movable hole 23, and a second spring 5 is sleeved on the outer wall of the blocking rod 7. The blocking rod 7 blocks the movable rod 4, thereby reducing the probability that the movable rod 4 will slide completely into the movable hole 23, thus improving the stability of the device.

[0040] To improve the overall sealing performance of the valve, a sealant is applied between the valve cover 11 and the valve body 1. The sealant improves the sealing performance between the valve cover 11 and the valve body 1, thereby improving the overall sealing performance of the valve.

[0041] To reduce the difficulty of the work for the staff, a rubber pad 8 is fixedly installed on the upper surface of the movable rod 4. The rubber pad 8 reduces the difficulty for the staff to press down on the movable rod 4, thereby reducing the difficulty of the work for the staff.

[0042] The working principle of the valve cover fixing structure of the high-sealing dome valve in this embodiment is as follows: When the operator needs to connect the valve cover 11 to the valve body 1, the operator connects the valve cover 11 to the valve body 1 through the connecting mechanism 3. Subsequently, the valve cover 11 is separated from the valve body 1 through the connecting mechanism 3. In this process, the connecting mechanism 3 reduces the difficulty for the operator to disassemble the valve cover 11, thereby reducing the difficulty of the operator's work.

[0043] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A valve cover fixing structure for a high-sealing dome valve, comprising a valve body (1), characterized in that: A valve cover (11) is installed on the top of the valve body (1). A valve core (12) is rotatably arranged inside the valve body (1). A driving mechanism for driving the valve core (12) to rotate is provided outside the valve body (1). A first connecting hole (13) is opened through the upper surface of the valve body (1). A second connecting hole (14) is opened through the upper surface of the valve cover (11). A connecting mechanism (3) for connecting the valve body (1) and the valve cover (11) is provided together between the valve body (1) and the valve cover (11).

2. The valve cover fixing structure of a high-sealing dome valve according to claim 1, characterized in that: The upper surface of the valve body (1) is provided with a plurality of mounting holes (2) arranged in a circumferential array. The inner walls of the plurality of mounting holes (2) are provided with a plurality of fixing holes (21) arranged in a circumferential array. The connecting mechanism (3) includes a mounting rod (31) slidably disposed in the mounting hole (2), a fixing rod (32) slidably disposed in the fixing hole (21), and a first spring (33) fixedly disposed on the side wall of the fixing rod (32). The other end of the first spring (33) is fixedly disposed on the inner wall of the fixing hole (21). The outer wall of the mounting rod (31) is provided with a plurality of first blocking holes (22) arranged in a circumferential array. The fixing rod (32) is slidably connected to the first blocking holes (22). The mounting rod (31) is fixed to the valve cover (11). The end of the fixing rod (32) away from the first spring (33) is provided with a rounded corner (34).

3. The valve cover fixing structure of a high-sealing dome valve according to claim 2, characterized in that: The valve cover (11) and the mounting rod (31) have a common movable hole (23) on their upper surfaces. The movable hole (23) is connected to the first blocking hole (22). A movable rod (4) is slidably disposed in the movable hole (23). Multiple second blocking holes (24) are arranged in a circumferential array on the outer wall of the movable rod (4). The fixed rod (32) is slidably connected to the second blocking holes (24).

4. The valve cover fixing structure of a high-sealing dome valve according to claim 3, characterized in that: A second spring (5) is fixedly installed on the inner bottom wall of the movable hole (23), and the other end of the second spring (5) is fixedly installed on the bottom surface of the movable rod (4).

5. The valve cover fixing structure of a high-sealing dome valve according to claim 3, characterized in that: A limiting groove (6) is provided on the inner wall of the movable hole (23), and a limiting member (61) is fixedly provided on the outer wall of the movable rod (4). The limiting member (61) is slidably connected to the limiting groove (6).

6. The valve cover fixing structure of a high-sealing dome valve according to claim 4, characterized in that: A blocking rod (7) is fixedly installed on the inner bottom wall of the movable hole (23), and the second spring (5) is sleeved on the outer wall of the blocking rod (7).

7. The valve cover fixing structure of a high-sealing dome valve according to claim 1, characterized in that: The valve cover (11) and the valve body (1) are coated with sealant.

8. The valve cover fixing structure of a high-sealing dome valve according to claim 3, characterized in that: A rubber pad (8) is fixedly installed on the upper surface of the movable rod (4).

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