Compression-resistant sealing element for fire-fighting equipment

Abstract

The utility model discloses a compression-resistant sealing element for fire-fighting equipment, and particularly relates to the field of fire-fighting equipment. The utility model provides a fire-fighting equipment compression-resistant sealing element, which comprises a connecting column, a sealing base, a sealing element main body and an anti-drop device, the bottom of the connecting column is provided with a rotating hole, the top of the sealing base is provided with a rotating shaft matched with the rotating hole, the rotating shaft is arranged in the rotating hole, and the sealing element main body is arranged in the anti-drop device. The sealing piece body is arranged at the bottom of the sealing base, and the anti-disengaging device is arranged between the rotating shaft and the connecting column.

Description

Technical Field

[0001] The utility model relates to the field of fire-fighting equipment, in particular to a pressure-resistant sealing component for fire-fighting equipment. Background Art

[0002] A fire hydrant is a fire-fighting equipment. The pressure-resistant seal is an important component arranged between the hydrant body and the hydrant valve body to close the water flow channel of the fire hydrant, ensuring that the fire hydrant can still maintain sealing performance under high-pressure water flow. It is connected to the valve stem of the fire hydrant valve body, and is driven by the valve stem to close the water flow channel of the fire hydrant. At present, a connecting hole is provided in the water flow channel of the fire hydrant. The pressure-resistant seal closes the water flow channel of the fire hydrant by closing the connecting hole. In the process of closing the water flow channel of the fire hydrant, the pressure-resistant seal is driven to move downward by rotating the valve stem until the pressure-resistant seal is pressed against the position of the connecting hole to close the connecting hole. However, after the pressure-resistant seal is pressed against the connecting hole, part of the pressure-resistant seal will enter the connecting hole. At this time, if the valve stem continues to be rotated, the hole wall of the connecting hole will cut the pressure-resistant seal, thereby damaging the pressure-resistant seal, and further affecting the sealing performance of the fire hydrant. Utility Model Content

[0003] The purpose of the utility model is to overcome the above technical problems and provide a pressure-resistant seal for fire-fighting equipment.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a pressure-resistant seal for fire-fighting equipment, including a connecting column, a sealing base, a sealing body, and an anti-detachment device, wherein a rotating hole is provided at the bottom of the connecting column, a rotating shaft matched with the rotating hole is provided at the top of the sealing base, the rotating shaft is installed in the rotating hole, the sealing body is arranged at the bottom of the sealing base, and the anti-detachment device is arranged between the rotating shaft and the connecting column.

[0005] Furthermore, the anti-slip device includes a connecting slot, an anti-slip ring groove, and a U-shaped clamp. The connecting slot is arranged on the connecting column, the connecting slot is connected to the rotating hole, the anti-slip ring groove is arranged on the rotating shaft, and the U-shaped clamp includes a main body and claw parts arranged at both ends of the main body, the main body is arranged in the connecting slot, and the claw part is arranged in the anti-slip ring groove.

[0006] Furthermore, the anti-slip device comprises two groups, and the two groups of anti-slip devices are arranged opposite to each other up and down.

[0007] Furthermore, a fixing device is provided between the U-shaped clamp and the connecting column.

[0008] Furthermore, the fixing device includes a fixing seat, a through hole, a threaded hole, and a fixing bolt. The fixing seat is arranged on the main body of the U-shaped clamp, the through hole is arranged on the fixing seat, the threaded hole is arranged on the side wall of the connecting column, and the fixing bolt passes through the through hole and is connected to the threaded hole.

[0009] Furthermore, an end face bearing is provided in the rotating hole, and the top of the rotating shaft is pressed against the end face bearing.

[0010] Furthermore, the sealing element body has a hemispherical structure.

[0011] Furthermore, the sealing body is made of rubber material.

[0012] From the above description of the utility model, it can be seen that compared with the prior art, the fire-fighting equipment pressure-resistant seal provided by the utility model has the following advantages: a connecting column and a sealing base are provided, a rotating hole is provided at the bottom of the connecting column, a rotating shaft matched with the rotating hole is provided at the top of the sealing base, the rotating shaft is installed in the rotating hole, a sealing body is provided at the bottom of the sealing base, an anti-slip device is provided between the rotating shaft and the connecting column, and the anti-slip device is used to prevent the rotating shaft from escaping from the rotating hole. Specifically, the rotating shaft can rotate around the central axis of the rotating hole, so that when the sealing body is pressed against the connecting hole of the fire hydrant water flow channel and the valve stem continues to be rotated, the sealing base can be stationary relative to the fire hydrant, and the connecting column can continue to rotate relative to the stationary sealing base to continue to move downward, so that the force of the sealing body pressing against the connecting hole of the fire hydrant water flow channel is sufficient to ensure the sealing performance of the fire hydrant, while preventing the connecting column from continuing to rotate and driving the sealing base to rotate, causing the hole wall of the connecting hole of the fire hydrant water flow channel to cut the sealing body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is an exploded view of the pressure-resistant seal of the fire-fighting equipment of the present utility model.

[0014] Figure 2 The utility model is a schematic diagram of the overall structure of the pressure-resistant seal of fire-fighting equipment.

[0015] Figure 3 This is a cross-sectional view of the installation of the pressure-resistant seal of the fire-fighting equipment of the utility model. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions in the present utility model in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present utility model.

[0017] Reference Figure 1-Figure 3 As shown, a pressure-resistant seal for fire-fighting equipment includes a connecting column 1, a sealing base 2, a sealing body 3, and an anti-slip device 4. The connecting column 1 is used to be fixedly connected to a valve stem. A rotating hole 11 is provided at the bottom of the connecting column 1. A rotating shaft 21 adapted to the rotating hole 11 is provided at the top of the sealing base 2. The rotating shaft 21 is installed in the rotating hole 11. The sealing body 3 is arranged at the bottom of the sealing base 2. The anti-slip device 4 is arranged between the rotating shaft 21 and the connecting column 1 to prevent the rotating shaft 21 from escaping from the rotating hole 11.

[0018] Specifically, the rotating shaft 21 can rotate around the central axis of the rotating hole 11, so that when the sealing body 3 is pressed against the connecting hole of the fire hydrant water flow channel and the valve stem continues to be rotated, the sealing base 2 can be stationary relative to the fire hydrant, and the connecting column 1 can continue to rotate relative to the stationary sealing base 2 to continue to move downward, so that the force of the sealing body 3 pressing against the connecting hole of the fire hydrant water flow channel is sufficient to ensure the sealing performance of the fire hydrant, while preventing the connecting column 1 from continuing to rotate and driving the sealing base 2 to rotate, causing the hole wall of the connecting hole of the fire hydrant water flow channel to cut the sealing body 3, which has the function of protecting the sealing body 3.

[0019] The anti-slip device 4 includes two groups, and the two groups of anti-slip devices 4 are arranged opposite to each other up and down. The anti-slip device 4 includes a connecting notch 41, an anti-slip ring groove 42, and a U-shaped clamp 43. The connecting notch 41 is arranged on the connecting column 1, and the connecting notch 41 is connected to the rotating hole 11. The anti-slip ring groove 42 is arranged on the rotating shaft 21. The U-shaped clamp 43 includes a main body 431 and claws 432 arranged at both ends of the main body 431. The main body 431 is arranged in the connecting notch 41, and the claws 432 are arranged in the anti-slip ring groove 42, so as to limit the axial movement of the rotating shaft 21, thereby preventing the rotating shaft 21 from being separated from the rotating hole 11.

[0020] A fixing device 5 is provided between the U-shaped clamp 43 and the connecting column 1, and the fixing device 5 is used to fix the U-shaped clamp 43 on the connecting column 1 to prevent the U-shaped clamp 43 from being separated from the connecting slot 41. The fixing device 5 includes a fixing seat 51, a through hole 52, a threaded hole 53, and a fixing bolt 54. The fixing seat 51 is provided on the main body 431 of the U-shaped clamp 43, the through hole 52 is provided on the fixing seat 51, the threaded hole 53 is provided on the side wall of the connecting column 1, and the fixing bolt 54 passes through the through hole 52 and is connected with the threaded hole 53.

[0021] An end bearing 6 is provided in the rotating hole 11 , and the top of the rotating shaft 21 is pressed against the end bearing 6 . The end bearing 6 can reduce the friction between the rotating shaft 21 and the top of the rotating hole 11 when the rotating shaft 21 rotates.

[0022] The sealing body 3 is in a hemispherical structure.

[0023] The sealing body 3 is made of rubber material.

[0024] The above are only some specific implementation methods of the utility model, but the design concept of the utility model is not limited to this. Any non-substantial changes to the utility model using this concept shall be deemed as an infringement of the protection scope of the utility model.

Claims

1. A pressure-resistant seal for fire-fighting equipment, characterized in that: It includes a connecting column, a sealing base, a sealing body, and an anti-slip device. The bottom of the connecting column is provided with a rotating hole, the top of the sealing base is provided with a rotating shaft adapted to the rotating hole, the rotating shaft is installed in the rotating hole, the sealing body is arranged at the bottom of the sealing base, and the anti-slip device is arranged between the rotating shaft and the connecting column.

2. The fire-fighting equipment pressure-resistant seal according to claim 1, characterized in that: The anti-slip device includes a connecting slot, an anti-slip ring groove, and a U-shaped clamp. The connecting slot is arranged on the connecting column, the connecting slot is connected to the rotating hole, the anti-slip ring groove is arranged on the rotating shaft, and the U-shaped clamp includes a main body and claw parts arranged at both ends of the main body, the main body is arranged in the connecting slot, and the claw part is arranged in the anti-slip ring groove.

3. The fire-fighting equipment pressure-resistant seal according to claim 2, characterized in that: The anti-slip device comprises two groups, and the two groups of anti-slip devices are arranged opposite to each other up and down.

4. The fire-fighting equipment pressure-resistant seal according to claim 3, characterized in that: A fixing device is provided between the U-shaped clamp and the connecting column.

5. The fire-fighting equipment pressure-resistant seal according to claim 4, characterized in that: The fixing device includes a fixing seat, a through hole, a threaded hole, and a fixing bolt. The fixing seat is arranged on the main body of the U-shaped clamp, the through hole is arranged on the fixing seat, the threaded hole is arranged on the side wall of the connecting column, and the fixing bolt passes through the through hole and is connected to the threaded hole.

6. The fire-fighting equipment pressure-resistant seal according to claim 5, characterized in that: An end face bearing is arranged in the rotating hole, and the top of the rotating shaft is pressed against the end face bearing.

7. The fire-fighting equipment pressure-resistant seal according to claim 6, characterized in that: The sealing element body is in a hemispherical structure.

8. The fire-fighting equipment pressure-resistant seal according to claim 7, characterized in that: The sealing element body is made of rubber material.

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