A fire hydrant valve disc with self-buffering protection function

Abstract

The utility model discloses a fire hydrant valve flap with a self-buffering protection function, and specifically relates to the field of fire hydrants. The utility model provides a fire hydrant valve flap with a self-buffering protection function, comprising a valve flap body, a buffer shell, and a buffer device, wherein the valve flap body comprises a closing portion and a connecting portion, wherein the connecting portion is arranged on the closing portion, and a rubber sealing layer is arranged on the top of the closing portion, and the buffer shell is sleeved on the closing portion, and the buffer device is arranged between the buffer shell and the closing portion, wherein the buffer device comprises a buffer base, a first buffer rod, a second buffer rod, a rolling mechanism, and a buffer mechanism, wherein a mounting groove is arranged in the buffer shell, and the buffer base is arranged in the mounting groove, and one end of the first buffer rod and one end of the second buffer rod are rotatably arranged in the middle of the buffer base, and the rolling mechanism is arranged on the other end of the first buffer rod and the other end of the second buffer rod, and the buffer mechanism is arranged between the two ends of the first buffer rod and the second buffer rod.

Description

Technical Field

[0001] The utility model relates to the field of fire hydrants, in particular to a fire hydrant valve flap with a self-buffering protection function. Background Art

[0002] The fire hydrant valve flap is an important component used to control the flow of water in fire hydrants. It is usually installed between the fire hydrant body and the fire hydrant valve body. It is driven by a valve stem to open or close the connecting channel between the hydrant body and the valve body. Each time the valve flap is opened, it is often subjected to the instantaneous impact of the water flow. After long-term use, the valve flap is easily damaged, resulting in the inability to close the water flow channel, causing a waste of water resources. Utility Model Content

[0003] The utility model aims to overcome the above technical problems and provide a fire hydrant valve flap with a self-buffering protection function.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a fire hydrant valve flap with self-buffering protection function, including a valve flap body, a buffer shell, and a buffer device, the valve flap body including a closing part and a connecting part, the connecting part is arranged on the closing part, the top of the closing part is provided with a rubber sealing layer, the buffer shell is sleeved on the closing part, and the buffer device is arranged between the buffer shell and the closing part, wherein the buffer device includes a buffer base, a first buffer rod, a second buffer rod, a rolling mechanism, and a buffer mechanism, the buffer shell is provided with a mounting groove, the buffer base is arranged in the mounting groove, one end of the first buffer rod and one end of the second buffer rod are rotatably arranged in the middle of the buffer base, the rolling mechanism is arranged on the other end of the first buffer rod and the other end of the second buffer rod, and the buffer mechanism is arranged between the two ends of the first buffer rod and the second buffer rod.

[0005] Furthermore, the rolling mechanism includes rollers, and the rollers are arranged at the ends of the first buffer rod and the ends of the second buffer rod.

[0006] Furthermore, the buffer mechanism includes a buffer spring, one end of the buffer spring is connected to the end of the first buffer rod, and the other end of the buffer spring is connected to the end of the second buffer rod.

[0007] Furthermore, the buffer device also includes a rotating mechanism, and the rotating mechanism is arranged between the first buffer rod and the buffer base and between the second buffer rod and the buffer base.

[0008] Furthermore, the rotating mechanism includes a rotating seat, a rotating hole, and a rotating shaft. The rotating seat is arranged in the middle of the buffer base, the rotating hole is arranged at the end of the first buffer rod and the end of the second buffer rod, the rotating shaft is arranged on both sides of the rotating seat, and the rotating shaft is installed on the rotating hole.

[0009] Furthermore, a limiting block is provided on the top of the buffer shell, and a first limiting step is provided on the side wall of the closing portion.

[0010] Furthermore, a second limiting step is provided inside the buffer shell.

[0011] Furthermore, the height of the sealing portion is 2-3 cm.

[0012] From the above description of the utility model, it can be seen that compared with the prior art, the fire hydrant valve flap with self-buffering protection function provided by the utility model has the following advantages: the valve flap body includes a closing part and a connecting part, the connecting part is arranged on the closing part, and a rubber sealing layer is provided on the top of the closing part, and the rubber sealing layer is used to close the connecting channel between the fire hydrant body and the fire hydrant valve body, and a buffer shell is provided at the bottom of the closing part, and the buffer shell is used to protect the closing part to prevent the instantaneous impact of the water flow from damaging the closing part, and a buffer device is provided between the buffer shell and the closing part, and the buffer device is used to offset the impact force of the water flow, further protecting the closing part and the buffer shell, thereby achieving the purpose of protecting the valve flap body, improving the service life of the valve flap body, and ensuring the normal and stable use of the fire hydrant. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is an exploded view of the fire hydrant valve disc with self-buffering protection function of the utility model.

[0014] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0015] Figure 3 It is a front view of the fire hydrant valve disc with self-buffering protection function of the utility model.

[0016] Figure 4 for Figure 3 Cross-section along BB direction. DETAILED DESCRIPTION

[0017] 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.

[0018] Reference Figure 1-Figure 4 As shown, a fire hydrant valve flap with a self-buffering protection function is used to be arranged at the connecting channel between the fire hydrant body and the fire hydrant valve body to control the flow of water, which includes a valve flap body 1, a buffer shell 2, and a buffer device 3. The valve flap body 1 includes a closing portion 11 and a connecting portion 12, and the connecting portion 12 is arranged on the closing portion 11. The connecting portion 12 and the closing portion 11 are integrally formed. A rubber sealing layer 111 is provided on the top of the closing portion 11. The rubber sealing layer 111 is used to close the connecting channel between the fire hydrant body and the fire hydrant valve body. The buffer shell 2 is sleeved on the closing portion 11, and the buffer shell 2 can move along the axial direction of the closing portion 11. The buffer shell 2 is used to protect the closing portion 11 to prevent the closing portion 11 from being damaged by the instantaneous impact of the water flow. The buffer device 3 is arranged between the buffer shell 2 and the closing portion 11. The buffer device 3 is used to offset the impact force of the water flow, further protecting the closing portion 11 and the buffer shell 2, thereby achieving the purpose of protecting the valve flap body 1, improving the service life of the valve flap body 1, and ensuring the normal and stable use of the fire hydrant.

[0019] Among them, the buffer device 3 includes a buffer base 31, a first buffer rod 32, a second buffer rod 33, a rolling mechanism 34, and a buffer mechanism 35. The buffer shell 2 is provided with a mounting groove 21, and the buffer base 31 is arranged in the mounting groove 21. One end of the first buffer rod 32 and one end of the second buffer rod 33 are rotatably arranged in the middle of the buffer base 31. The first buffer rod 32 and the second buffer rod 33 form a V-shaped structure. The rolling mechanism 34 is arranged on the other end of the first buffer rod 32 and the other end of the second buffer rod 33. The buffer mechanism 35 is arranged between the two ends of the first buffer rod 32 and the second buffer rod 33.

[0020] The rolling mechanism 34 includes rollers, and the rollers are disposed at ends of the first buffer rod 32 and the second buffer rod 33 .

[0021] The buffer mechanism 35 includes a buffer spring, one end of which is connected to the end of the first buffer rod 32 , and the other end of which is connected to the end of the second buffer rod 33 .

[0022] Specifically, when the buffer shell 2 is impacted by water flow, the buffer shell 2 moves upward along the axial direction of the closed portion 11, so that the two ends of the first buffer rod 32 and the second buffer rod 33 expand outward, that is, the angle between the first buffer rod 32 and the second buffer rod 33 increases, thereby stretching the buffer spring so that the elastic force generated by the buffer spring offsets the impact force of the water flow.

[0023] The buffer device 3 further includes a rotating mechanism 36 , which is disposed between the first buffer rod 32 and the buffer base 31 and between the second buffer rod 33 and the buffer base 31 .

[0024] The rotating mechanism 36 includes a rotating seat 361, a rotating hole 362, and a rotating shaft 363. The rotating seat 361 is arranged in the middle of the buffer base 31, the rotating hole 362 is arranged at the end of the first buffer rod 32 and the end of the second buffer rod 33, the rotating shaft 363 is arranged on both sides of the rotating seat 361, and the rotating shaft 363 is installed on the rotating hole 362.

[0025] A limiting block 22 is disposed on the top of the buffer shell 2 , and a first limiting step 112 is disposed on the side wall of the closing portion 11 . The limiting block 22 cooperates with the first limiting step 112 to prevent the buffer shell 2 from being separated from the closing portion 11 .

[0026] A second limiting step 23 is provided inside the buffer shell 2 , and the second limiting step 23 is used to limit the upward movement distance of the buffer shell 2 .

[0027] The height of the sealing portion 11 is 2-3 cm.

[0028] 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 fire hydrant valve flap with self-buffering protection function, characterized in that: The invention comprises a valve flap body, a buffer shell and a buffer device, wherein the valve flap body comprises a closing portion and a connecting portion, wherein the connecting portion is arranged on the closing portion, a rubber sealing layer is arranged on the top of the closing portion, the buffer shell is sleeved on the closing portion, and the buffer device is arranged between the buffer shell and the closing portion, wherein the buffer device comprises a buffer base, a first buffer rod, a second buffer rod, a rolling mechanism and a buffer mechanism, wherein a mounting groove is arranged in the buffer shell, the buffer base is arranged in the mounting groove, one end of the first buffer rod and one end of the second buffer rod are rotatably arranged in the middle of the buffer base, the rolling mechanism is arranged on the other end of the first buffer rod and the other end of the second buffer rod, and the buffer mechanism is arranged between the two ends of the first buffer rod and the second buffer rod.

2. The fire hydrant valve flap with self-buffering protection function according to claim 1 is characterized in that: The rolling mechanism includes rollers, and the rollers are arranged at ends of the first buffer rod and the second buffer rod.

3. The fire hydrant valve flap with self-buffering protection function according to claim 2 is characterized in that: The buffer mechanism includes a buffer spring, one end of which is connected to the end of the first buffer rod, and the other end of which is connected to the end of the second buffer rod.

4. The fire hydrant valve flap with self-buffering protection function according to claim 3 is characterized in that: The buffer device further includes a rotating mechanism, and the rotating mechanism is arranged between the first buffer rod and the buffer base and between the second buffer rod and the buffer base.

5. The fire hydrant valve flap with self-buffering protection function according to claim 4 is characterized in that: The rotating mechanism includes a rotating seat, a rotating hole, and a rotating shaft. The rotating seat is arranged in the middle of the buffer base, the rotating hole is arranged at the end of the first buffer rod and the end of the second buffer rod, the rotating shaft is arranged on both sides of the rotating seat, and the rotating shaft is installed on the rotating hole.

6. The fire hydrant valve flap with self-buffering protection function according to claim 5 is characterized in that: A limiting block is disposed on the top of the buffer shell, and a first limiting step is disposed on the side wall of the closing portion.

7. The fire hydrant valve flap with self-buffering protection function according to claim 6 is characterized in that: A second limiting step is provided inside the buffer shell.

8. The fire hydrant valve flap with self-buffering protection function according to claim 7 is characterized in that: The height of the closed portion is 2-3 cm.

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