Flange stop valve with good anti-seismic effect

Abstract

The utility model discloses a flange stop valve with a good anti-shock effect, which comprises a stop valve main body, a mounting flange is arranged at an inlet and an outlet of the stop valve main body, a valve port is arranged in the stop valve main body, a connecting flange is arranged at the top end of the stop valve main body, a valve rod main body is arranged in the connecting flange, and a valve rod is arranged in the valve rod main body. An adjusting rotating handle is fixedly connected to the top end of the valve rod body, limiting rods are movably installed on the two sides of the bottom end of the adjusting rotating handle, a fixing block is fixedly connected to the top end of the connecting flange, limiting clamping grooves are fixedly formed in the two sides of the fixing block, and a valve element body is installed at the bottom end of the valve rod body. According to the flange stop valve with the good anti-seismic effect, anti-seismic buffering protection can be conducted on the exterior of the flange stop valve through the anti-seismic sleeve, the damping spring in the stop valve body has the good elastic performance, the overall anti-seismic effect of the stop valve can be improved, the function of conveniently improving the anti-seismic effect is achieved through the structure, and the problem that the anti-seismic effect is poor is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of stop valves, in particular to a flange stop valve with good anti-seismic effect. Background Art

[0002] The stop valve is the most common type of valve. The friction between the sealing surfaces of the stop valve is small, it is relatively durable, the opening height is not large, it is easy to manufacture and maintain, and it is used in petrochemical, chemical, electric power, metallurgy, medicine, food and other industries.

[0003] After searching, a flange stop valve disclosed in application number CN201822002101.9 is mentioned in the text, which "includes a valve body, wherein a water inlet and a water outlet are respectively provided at the left and right ends of the valve body, and flanges are installed at the connections between the water inlet and the water outlet and the pipeline, and the top of the valve body is bolted to the valve cover, and a control device is welded on the top of the valve cover, a valve stem is provided at the top center of the control device, a hand turntable is provided on the outer periphery of the top of the valve stem, and the control device and the valve cover are interspersed in sequence at the bottom of the valve stem". Once the flange stop valve in the above application has the problem of excessive vibration amplitude during use, the outside and inside of the flange stop valve cannot be timely buffered and shock-absorbing, and the turning handle on the flange stop valve is easy to be touched by mistake.

[0004] There is an urgent need for a flange stop valve with good seismic resistance to solve the technical defects proposed in the above technology. Utility Model Content

[0005] The utility model aims to provide a flange stop valve with good anti-seismic effect, so as to solve the problem of poor anti-seismic effect in the above-mentioned background technology.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a flange stop valve with good seismic resistance, comprising a stop valve body, a mounting flange is installed at the inlet and outlet of the stop valve body, a valve port is arranged inside the stop valve body, a connecting flange is installed at the top of the stop valve body, a valve stem body is arranged inside the connecting flange, an adjusting handle is fixedly connected to the top of the valve stem body, limiting rods are movably installed on both sides of the bottom end of the adjusting handle, a fixing block is fixedly connected to the top of the connecting flange, limiting slots are fixedly installed on both sides of the fixing block, a valve core body is installed at the bottom end of the valve stem body, a sealing ring is installed on the outside of the valve core body, a shock-absorbing spring is installed on the outside of the valve stem body, seismic sleeves are installed on both sides of the connecting flange, a buffer pad is fixedly connected to the inner side of the seismic sleeve, and a rubber pad is fixedly connected to the inner side of the buffer pad.

[0007] Preferably, the anti-vibration sleeve is sleeved on the outside of the stop valve body, and the inner side of the rubber pad is in contact with the outer wall of the stop valve body.

[0008] Preferably, a connecting block is fixedly connected to the top end of the valve core body, a connecting groove is provided at the bottom end of the valve stem body, connecting bolts are provided on both sides of the valve stem body, and the connecting block is embedded in the connecting groove.

[0009] Preferably, a notch is provided on one side of the limiting slot, and the bottom end of the limiting rod can be embedded in the notch of the limiting slot.

[0010] Preferably, the inner diameter of the fixing block is larger than the outer diameter of the valve stem body, and the valve stem body is embedded in the fixing block.

[0011] Preferably, the valve core body is embedded in the valve port, and the valve core body is embedded in the valve port.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the flange stop valve with good earthquake resistance not only realizes the function of improving the earthquake resistance and preventing accidental touch, but also realizes the function of being easy to disassemble and replace;

[0013] (1) The anti-seismic sleeve, the shock absorbing spring, the buffer pad and the rubber pad are provided. The anti-seismic sleeve is installed on the outside of the stop valve body. The buffer pad and the rubber pad inside the anti-seismic sleeve have a certain buffering effect. When the stop valve body vibrates, the anti-seismic sleeve can provide anti-seismic buffering protection to the outside. The shock absorbing spring inside the stop valve body has good elastic performance, which can improve the overall anti-seismic effect of the stop valve. This structure realizes the function of facilitating the improvement of the anti-seismic effect.

[0014] (2) By providing a limit rod, an adjustment handle, a fixing block and a limit slot, after the stop valve body is adjusted to be stable, the limit rod can be inserted into the limit slot, and the limit rod can limit and fix the adjustment handle to prevent the staff from accidentally touching the adjustment handle, thereby improving the stability of the stop valve body. This structure realizes the function of preventing accidental touch;

[0015] (3) By providing a valve core body, a sealing ring, a connecting block and a connecting bolt, the valve stem body can push the valve core body to be embedded in the valve port, and the sealing ring outside the valve core body can improve the sealing performance of the closure. The valve core body can be disassembled and removed from the valve stem body. When disassembling, it is necessary to first unscrew the connecting bolts, and then remove the connecting block on the valve core body from the valve stem body. This structure realizes the function of easy disassembly and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0017] Figure 2 This is a front view structural schematic diagram of the utility model;

[0018] Figure 3For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0019] Figure 4 It is a front view structural schematic diagram of the adjusting handle of the utility model.

[0020] In the figure: 1. Mounting flange; 2. Valve core body; 3. Stop valve body; 4. Anti-seismic sleeve; 5. Connecting flange; 6. Valve stem body; 7. Limit rod; 8. Adjusting handle; 9. Fixing block; 10. Shock-absorbing spring; 11. Buffer pad; 12. Valve port; 13. Rubber pad; 14. Sealing ring; 15. Connecting block; 16. Connecting bolt; 17. Limiting slot. DETAILED DESCRIPTION

[0021] 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.

[0022] Example 1: Please refer to Figure 1-4 A flange stop valve with good anti-seismic effect, comprising a stop valve body 3, a mounting flange 1 is installed at the inlet and outlet of the stop valve body 3, a valve port 12 is arranged inside the stop valve body 3, a connecting flange 5 is installed at the top of the stop valve body 3, a valve stem body 6 is arranged inside the connecting flange 5, an adjusting handle 8 is fixedly connected to the top of the valve stem body 6, and limit rods 7 are movably installed on both sides of the bottom of the adjusting handle 8, a fixing block 9 is fixedly connected to the top of the connecting flange 5, and limit slots 17 are fixedly installed on both sides of the fixing block 9, a valve core body 2 is installed at the bottom of the valve stem body 6, a sealing ring 14 is installed on the outside of the valve core body 2, a shock-absorbing spring 10 is installed on the outside of the valve stem body 6, and anti-seismic sleeves 4 are installed on both sides of the connecting flange 5, a buffer pad 11 is fixedly connected to the inner side of the anti-seismic sleeve 4, and a rubber pad 13 is fixedly connected to the inner side of the buffer pad 11;

[0023] The anti-seismic sleeve 4 is sleeved on the outside of the stop valve body 3, and the inner side of the rubber pad 13 is in contact with the outer wall of the stop valve body 3;

[0024] Specifically, if Figure 1 and Figure 2 As shown, the buffer pad 11 and rubber pad 13 inside the anti-seismic sleeve 4 have a certain buffering effect. When the stop valve body 3 vibrates, the anti-seismic sleeve 4 can provide anti-seismic buffering protection to its exterior. The shock-absorbing spring 10 inside the stop valve body 3 has good elastic properties, which can improve the overall anti-seismic effect of the stop valve.

[0025] Embodiment 2: A notch is provided on one side of the limiting slot 17, and the bottom end of the limiting rod 7 can be embedded in the notch of the limiting slot 17. The inner diameter of the fixing block 9 is larger than the outer diameter of the valve stem body 6, and the valve stem body 6 is embedded in the inner part of the fixing block 9;

[0026] Specifically, if Figure 1 and Figure 4 As shown, the limit rod 7 at the bottom of the adjusting handle 8 can fix it, and the adjusting handle 8 can drive the valve stem body 6 to rotate and move. However, after the stop valve body 3 is stably adjusted, the limit rod 7 can be used to limit the adjusting handle 8 to prevent the staff from accidentally touching the adjusting handle 8, thereby improving the stability of the stop valve body 3.

[0027] Embodiment 3: The top of the valve core body 2 is fixedly connected with a connecting block 15, the bottom of the valve stem body 6 is provided with a connecting groove, and connecting bolts 16 are provided on both sides of the valve stem body 6. The connecting block 15 is embedded in the connecting groove, and the valve core body 2 is embedded in the valve port 12, and the valve core body 2 is embedded with the valve port 12;

[0028] Specifically, if Figure 1 and Figure 3 As shown, the sealing ring 14 outside the valve core body 2 can improve the sealing of the closure, and the valve core body 2 can be disassembled and removed from the valve stem body 6. When disassembling, it is necessary to first unscrew the connecting bolts 16, and then remove the connecting block 15 on the valve core body 2 from the valve stem body 6.

[0029] Working principle: When the utility model is used, the stop valve body 3 needs to be installed on the equipment first. The mounting flange 1 on the stop valve body 3 is convenient for installing and fixing it. Then, the adjusting handle 8 is turned according to the flow demand. The adjusting handle 8 can drive the valve stem body 6 to move to a suitable position. The valve stem body 6 can push the valve core body 2 to be embedded in the valve port 12. The sealing ring 14 outside the valve core body 2 can improve the sealing performance of the closure. The valve core body 2 can be disassembled from the valve stem body 6. When disassembling, the connecting bolt 16 needs to be unscrewed first, and then the connecting block 15 on the valve core body 2 is removed from the valve The limit rod 7 can be removed from the rod body 6. After the stop valve body 3 is adjusted and stabilized, the limit rod 7 can be inserted into the limit slot 17. The limit rod 7 can limit and fix the adjusting handle 8 to prevent the staff from accidentally touching the adjusting handle 8. The buffer pad 11 and rubber pad 13 inside the anti-seismic sleeve 4 have a certain buffering effect. When the stop valve body 3 vibrates, the anti-seismic sleeve 4 can provide anti-seismic buffering protection for its exterior. The shock-absorbing spring 10 inside the stop valve body 3 has good elastic performance, which can improve the overall anti-seismic effect of the stop valve. This structure realizes the function of facilitating the improvement of the anti-seismic effect.

[0030] 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 flange stop valve with good seismic resistance, comprising a stop valve body (3), characterized in that: The inlet and outlet of the stop valve body (3) are provided with a mounting flange (1), the interior of the stop valve body (3) is provided with a valve port (12), the top of the stop valve body (3) is provided with a connecting flange (5), the interior of the connecting flange (5) is provided with a valve stem body (6), the top of the valve stem body (6) is fixedly connected with an adjusting handle (8), the two sides of the bottom of the adjusting handle (8) are movably provided with limit rods (7), the top of the connecting flange (5) is fixedly connected with a fixing block ( 9), the fixed block (9) is fixedly installed with limit slots (17) on both sides, the valve core body (2) is installed at the bottom end of the valve stem body (6), the valve core body (2) is installed with a sealing ring (14) on the outside of the valve core body (2), the valve stem body (6) is installed with a shock-absorbing spring (10), the connection flange (5) is installed with anti-vibration sleeves (4) on both sides, the inner side of the anti-vibration sleeve (4) is fixedly connected with a buffer pad (11), and the inner side of the buffer pad (11) is fixedly connected with a rubber pad (13).

2. A flange stop valve with good seismic resistance according to claim 1, characterized in that: The anti-vibration sleeve (4) is sleeved on the outside of the stop valve body (3), and the inner side of the rubber pad (13) is in contact with the outer wall of the stop valve body (3).

3. A flange stop valve with good seismic resistance according to claim 1, characterized in that: The top end of the valve core body (2) is fixedly connected with a connecting block (15), the bottom end of the valve stem body (6) is provided with a connecting groove, connecting bolts (16) are provided on both sides of the valve stem body (6), and the connecting block (15) is embedded in the inside of the connecting groove.

4. A flange stop valve with good seismic resistance according to claim 1, characterized in that: A notch is provided on one side of the limiting slot (17), and the bottom end of the limiting rod (7) can be embedded in the notch of the limiting slot (17).

5. A flange stop valve with good seismic resistance according to claim 1, characterized in that: The inner diameter of the fixing block (9) is larger than the outer diameter of the valve stem body (6), and the valve stem body (6) is embedded in the fixing block (9).

6. A flange stop valve with good earthquake resistance according to claim 1, characterized in that: The valve core body (2) is embedded in the interior of the valve port (12), and the valve core body (2) is embedded in the valve port (12).

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