Ground fire hydrant for outputting foam extinguishing agent
By designing structures such as buffer cylinder, shock absorbing bump and buffer ring block on the fire hydrant, the impact force is gradually weakened, and the problem of easy damage to the ground fire hydrant is solved, achieving higher durability and leakage prevention effect.
Patent Information
- Application Number
- CN202510760816.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-09
- Publication Date
- 2025-08-15
AI Technical Summary
On-ground fire hydrants are prone to breakage or surface damage in warehouses and factories due to bumps from forklifts or goods, and then leak.
A buffer structure including a buffer cylinder, shock absorbing bump, buffer ring block, contact buffer ring and buffer seat is designed. The impact force is gradually weakened through a multi-layer buffering mechanism to prevent the impact force from being directly transmitted to the fire hydrant body.
It effectively prevents breakage or surface damage caused by bumps or impacts, reduces the risk of leakage, and improves the durability of the equipment.
Smart Images
Figure CN120486535A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of fire hydrants, in particular to a ground fire hydrant for outputting foam fire extinguishing agent. Background Art
[0002] Above-ground fire hydrants are firefighting facilities installed above ground level outside buildings, with the valve, outlet, and part of the housing exposed above ground. These hydrants can be connected not only to a water source but also to a foam tank. Unlike ordinary fire hydrants, their foam liquid has a superior fire extinguishing effect, quickly extinguishing the source of fire without causing secondary pollution to the surrounding environment. This type of fire hydrant is also known as a foam fire hydrant.
[0003] In warehouses and factories, flammable and combustible items are usually stored, and the risk of fire is high. Foam fire hydrants are usually installed to prevent fires. However, when transporting goods in warehouses and factories, forklifts or trucks are usually used to carry and transport the goods. During transportation, the line of sight is easily blocked by the goods, or improper operation may cause the forklift or goods to collide with the fire hydrant body. The fire hydrant body usually does not have a buffer mechanism on the surface, so it is easy for the fire hydrant body to break or the surface to be damaged after collision, which can easily cause the fire hydrant to leak. Summary of the Invention
[0004] The purpose of the present invention is to provide a ground fire hydrant for outputting foam fire extinguishing agent in view of the defects and shortcomings of the prior art.
[0005] To achieve the above-mentioned object, the present invention adopts the following technical solution: a ground fire hydrant for outputting foam fire extinguishing agent, comprising a fire hydrant body, and also comprising two mounting seats arranged above and below the fire hydrant body, a buffer cylinder arranged between the two mounting seats and sleeved on the outside of the fire hydrant body, sliding ring grooves respectively provided on the two mounting seats and having a clearance fit with the buffer cylinder, a plurality of shock-absorbing protrusions annularly provided on the buffer cylinder and located between the buffer cylinder and the fire hydrant body, a buffer ring block arranged on the outside of the buffer cylinder, and a buffer ring block arranged on the outside of the buffer ring block. A contact buffer ring, two buffer seats respectively arranged on the outsides of the two mounting seats, elastic connecting parts respectively arranged between the two buffer seats and the contact buffer rings, a deformation inner cavity formed between the elastic connecting part and the buffer ring block, the buffer ring block is an elastic block, the contact buffer ring is an elastic ring, the elastic connecting part is annularly arranged between the two buffer seats and the contact buffer ring, the elastic connecting part is an arc-shaped part, the distance between the contact buffer ring and the fire hydrant body is greater than the distance between the buffer seat and the fire hydrant body, and the shock-absorbing protrusion is an elastic block or a flexible block.
[0006] A further improvement is that: the buffer ring block is provided with an arc-shaped variable hole, and the arc-shaped variable hole is located on the end surface of the buffer cylinder.
[0007] A further improvement is that a buffer inner cavity is provided on the contact buffer ring, and the buffer inner cavity is provided in an annular shape on the contact buffer ring.
[0008] A further improvement is that: a plurality of tearing holes are opened on the contact buffer ring, each of the tearing holes is connected to the buffer inner cavity, and the buffer inner cavity is an elliptical inner cavity.
[0009] A further improvement is that each of the shock-absorbing bumps comprises two symmetrically arranged bumps, each having an outer curved surface on its outer side and an inner curved surface on its inner side, with a deformable space formed between the two bumps. Both bumps are elastic or flexible. The ends of the outer curved surface are close to or connected to the ends of the inner curved surface, giving the bump a crescent shape.
[0010] A further improvement is that the buffer seat is a rubber seat or a silica gel seat.
[0011] After adopting the above technical solution, the beneficial effects of the present invention are as follows: the outer surface of the fire hydrant body is covered with the buffer seat, the elastic connecting part and the contact buffer ring. When a forklift or cargo collides with the fire hydrant body, the object first hits the contact buffer ring, causing the contact buffer ring to be concave toward the fire hydrant body through the deformation inner cavity. The elastic setting of the contact buffer ring and the concave process are used to initially buffer the impact force, and the remaining impact force is transmitted to the buffer ring block. The buffer ring block is elastically deformed by the impact, thereby performing a secondary buffering of the impact force, and the remaining impact force is transmitted to the buffer cylinder. When the impact is in the air, the buffer cylinder moves in the sliding ring groove toward the outer wall of the fire hydrant body to squeeze a number of shock-absorbing protrusions, and the impact force is buffered again by the several shock-absorbing protrusions. In the process of contacting the depression of the buffer ring, if the object with a large impact force hits the buffer seat, the impact force can also be weakened by the buffer seat. The impact force generated by the collision is gradually buffered by the layered arrangement to prevent the impact force from being directly transmitted to the surface of the fire hydrant body, and to prevent the fire hydrant body from being broken or the surface damaged due to bumps and collisions. It is not easy for the fire hydrant to leak due to bumps or collisions.
[0012] Further effect: By arranging several shock-absorbing protrusions equidistantly in an annular shape, not only can a buffering effect be achieved, but the buffer tube and the fire hydrant body can be kept on the same central axis as much as possible. The setting of the sliding ring groove can be used when any part of the contact buffer ring is hit, so that the impact force is transmitted to the buffer tube. The impact force is auxiliary buffered by the movement of the buffer tube in the sliding ring groove. Compared with the buffer tube being directly fixed on the mounting seat, the impact force transmitted to the mounting seat and the fire hydrant body can be reduced.
[0013] Further effect: The setting of the arc-shaped hole can make the buffer ring block more easily produce elastic deformation when the buffer ring block is impacted, increase the deformation space of the buffer ring block, and thus increase the buffering and weakening effect of the impact force.
[0014] Further effect: when an object collides with the contact buffer ring, the setting of the buffer inner cavity can reduce the transmission of the impact force and increase the deformation space of the buffer inner cavity to enhance the buffering effect of the impact force.
[0015] Further effect: Since the contact buffer ring is easily compressed and deformed after being impacted, the setting of the tearing openings can control the direction and position of the deformation through the tearing openings when the contact buffer ring is deformed by impact, making it easier for the contact buffer ring to compress the space of the buffer cavity and disperse the impact force to each tearing opening, thereby improving the buffering effect of the impact force.
[0016] Further effect: when the buffer cylinder squeezes the shock-absorbing bump, the bump can be deformed toward the buffer cylinder through the inner arc surface and deformation space of the two bumps. Compared with the traditional method of directly setting a bump, the deformation amount of the shock-absorbing bump can be increased. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] 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.
[0018] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a front view cross-sectional view of the fire hydrant body, mounting seat, buffer cylinder, sliding ring groove, shock-absorbing protrusion, buffer ring block, contact buffer ring, buffer seat, elastic connecting portion, deformation cavity, and arc deformation hole of the present invention; Figure 3 It is a cross-sectional view of the contact buffer ring, the buffer inner cavity, and the tearing hole in the present invention; Figure 4 It is a top view of a cross-section of a fire hydrant body and a buffer cylinder in the present invention; Figure 5 It is a structural schematic diagram of the shock-absorbing protrusion in the present invention.
[0019] Explanation of the accompanying symbols: fire hydrant body 1, mounting seat 2, buffer cylinder 3, sliding ring groove 4, shock-absorbing protrusion 5, buffer ring block 6, contact buffer ring 7, buffer seat 8, elastic connecting part 9, deformation inner cavity 10, arc deformation hole 11, buffer inner cavity 12, tearing card hole 13, outer arc surface 14, inner arc surface 15, deformation space 16. DETAILED DESCRIPTION
[0020] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.
[0021] See Figures 1 to 5 As shown, the technical solution adopted in this specific embodiment is: a ground fire hydrant for outputting foam fire extinguishing agent, including a fire hydrant body 1, and also including two mounting seats 2 arranged above and below the fire hydrant body 1, a buffer cylinder 3 arranged between the two mounting seats 2 and sleeved on the outside of the fire hydrant body 1, a sliding ring groove 4 respectively opened on the two mounting seats 2 and with a clearance fit with the buffer cylinder 3, a plurality of shock-absorbing protrusions 5 annularly arranged on the buffer cylinder 3 and located between the buffer cylinder 3 and the fire hydrant body 1, a buffer ring block 6 arranged on the outside of the buffer cylinder 3, and a contact buffer provided on the outside of the buffer ring block 6. The punch ring 7, two buffer seats 8 respectively arranged on the outside of the two mounting seats 2, elastic connecting parts 9 respectively arranged between the two buffer seats 8 and the contact buffer ring 7, and a deformation cavity 10 formed between the elastic connecting part 9 and the buffer ring block 6. The buffer ring block 6 is an elastic block, the contact buffer ring 7 is an elastic ring, the elastic connecting part 9 is annularly arranged between the two buffer seats 8 and the contact buffer ring 7, the elastic connecting part 9 is an arc-shaped part, the distance between the contact buffer ring 7 and the fire hydrant body 1 is greater than the distance between the buffer seat 8 and the fire hydrant body 1, and the shock-absorbing protrusion 5 is an elastic block or a flexible block. The buffer tube 3 can be made of nylon, polyurethane or stainless steel with good support and deformation resistance. The good support can transmit the impact force, making the shock-absorbing protrusion 5 more easily squeezed and buffered. Alternatively, materials with cushioning and support properties such as rubber or TPU can be selected. In this case, the higher the thickness, the better the support and the greater the impact force transmitted. The thickness can be set in advance according to the use requirements. The buffer tube 3 only needs to be able to play a supporting, transmitting or buffering role. The central axis of the sliding ring groove 4 corresponds to the central axis of the fire hydrant body 1 and the mounting seat 2. The two sliding ring grooves 4 slide in conjunction with the upper and lower ends of the buffer tube 3. A group of circular equidistant positions of several shock-absorbing protrusions 5 are arranged in a longitudinal arrangement by setting multiple groups of shock-absorbing protrusions 5. The upper and lower end surfaces of the buffer ring block 6 are arc surfaces. The buffer ring block 6 is fixedly connected to the contact buffer ring 7 by glue or hot melt. The buffer ring block 6 is also fixedly connected to the buffer tube 3 by glue or hot melt. The elastic connecting part 9 is made of rubber or silicone material and is fixedly connected between the contact buffer ring 7 and the buffer seat 8 by glue or hot melt. The elastic connecting part 9 has two parts, which are respectively set at the upper and lower ends of the contact buffer ring 7. The two elastic connecting parts 9 are symmetrical up and down.
[0022] The buffer ring block 6 is provided with an arc-shaped variable hole 11 , which is located on the end surface of the buffer cylinder 3 .
[0023] The contact buffer ring 7 is provided with a buffer inner cavity 12 , which is annularly provided on the contact buffer ring 7 .
[0024] The contact and buffer ring 7 is provided with a plurality of tear holes 13, each of which communicates with the buffer cavity 12, which is an elliptical cavity. Each tear hole 13 is integrally formed with the contact and buffer ring 7 and the buffer cavity 12 through 3D printing or mold demolding. The tear holes 13 are arranged along the edge of the buffer cavity 12.
[0025] Each of the shock-absorbing bumps 5 comprises two symmetrically arranged bumps, each having an outer curved surface 14 on its outer side and an inner curved surface 15 on its inner side. A deformable space 16 is formed between the two bumps. Both bumps are elastic or flexible. The ends of the outer curved surface 14 and the ends of the inner curved surface 15 are adjacent to or connected to each other, giving the bump a crescent shape.
[0026] The buffer seat 8 is a rubber seat or a silica gel seat.
[0027] The working principle of the present invention is as follows: the outer surface of the fire hydrant body 1 is covered with a buffer seat 8, an elastic connecting portion 9, and a contact buffer ring 7. When a forklift or cargo collides with the fire hydrant body, the object first hits the contact buffer ring 7, causing the contact buffer ring 7 to be recessed toward the fire hydrant body 1 through the deformation inner cavity 10. The elastic setting of the contact buffer ring 7 and the recessed process are used to initially buffer the impact force, and the remaining impact force is transmitted to the buffer ring block 6. The buffer ring block 6 is elastically deformed by the impact, thereby performing a secondary buffering of the impact force. The remaining impact force is transmitted to the buffer cylinder 3. At this time, the buffer The cylinder 3 moves in the sliding ring groove 4 toward the outer wall of the fire hydrant body 1 to squeeze a plurality of shock-absorbing protrusions 5, and the impact force is buffered again by the plurality of shock-absorbing protrusions 5. In the process of contacting the depression of the buffer ring 7, if an object with a large impact force hits the buffer seat 8, the impact force can also be weakened by the buffer seat 8. The impact force generated by the impact is gradually buffered by the layered arrangement, preventing the impact force from being directly transmitted to the surface of the fire hydrant body 1, preventing the fire hydrant body from being broken or the surface from being damaged due to bumps or collisions, and not easily causing the fire hydrant to leak due to bumps or collisions. The arrangement of a plurality of shock-absorbing protrusions 5 at equal intervals in an annular manner not only provides a buffering effect, but also allows the buffer cylinder 3 and the fire hydrant body 1 to be kept on the same central axis as much as possible. The arrangement of the sliding annular groove 4 allows the buffer cylinder 3 to move in the sliding annular groove 4 in the event of an impact when any part of the contacting buffer ring 7 is hit. This auxiliary buffering of the impact force is achieved by the movement of the buffer cylinder 3 in the sliding annular groove 4. Compared with a case where the buffer cylinder 3 is directly fixed to the mounting seat 2, the impact force transmitted to the mounting seat 2 and the fire hydrant body can be reduced. The arc-shaped hole 11 can make the buffer ring block 6 more easily elastically deformed when the buffer ring block 6 is impacted, thereby increasing the deformation space 16 of the buffer ring block 6 and increasing the buffering effect of the impact force. When an object hits the contact buffer ring 7, the buffer cavity 12 can reduce the transmission of the impact force and increase the deformation space 16 of the buffer cavity 12 to enhance the buffering effect of the impact force; Since the contact buffer ring 7 is easily compressed and deformed after being impacted, the provision of the tearing holes 13 can control the direction and position of the deformation of the contact buffer ring 7 through the tearing holes 13 when the contact buffer ring 7 is deformed by the impact, making it easier for the contact buffer ring 7 to compress the space of the buffer cavity 12, so that the impact force is dispersed to each tearing hole 13, thereby improving the impact buffering effect; When the buffer cylinder 3 squeezes the shock-absorbing protrusion 5, the protrusion can be deformed toward the buffer cylinder 3 through the inner arc surface 15 and deformation space 16 of the two protrusions. Compared with the traditional method of directly setting a protrusion, the deformation amount of the shock-absorbing protrusion 5 can be increased.
[0028] The present invention protects the product's structure; the component models are not the subject of this invention's protection and are generally known technology. Any commercially available component that can achieve the aforementioned functions of this invention can be used as a ground fire hydrant for dispensing foam fire extinguishing agents. Therefore, detailed descriptions of component models and other parameters are not provided in this invention. The present invention's contribution lies in the scientific combination of the components.
[0029] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention as claimed. The scope of protection claimed is defined by the appended claims and their equivalents. Any details not described in detail herein are well known to those skilled in the art.
Claims
1. A ground fire hydrant for dispensing a foam fire extinguishing agent, comprising a fire hydrant body, characterized in that: It also includes two mounting seats arranged above and below the fire hydrant body, a buffer cylinder arranged between the two mounting seats and sleeved on the outside of the fire hydrant body, sliding ring grooves respectively opened on the two mounting seats and gap-matched with the buffer cylinder, a plurality of shock-absorbing protrusions annularly arranged on the buffer cylinder and located between the buffer cylinder and the fire hydrant body, a buffer ring block arranged on the outside of the buffer cylinder, a contact buffer ring arranged on the outside of the buffer ring block, two buffer seats respectively arranged on the outside of the two mounting seats, elastic connecting parts respectively arranged between the two buffer seats and the contact buffer ring, and a deformation inner cavity formed between the elastic connecting part and the buffer ring block, the buffer ring block is an elastic block, the contact buffer ring is an elastic ring, the elastic connecting part is annularly arranged between the two buffer seats and the contact buffer ring, the elastic connecting part is an arc-shaped part, the distance between the contact buffer ring and the fire hydrant body is greater than the distance between the buffer seat and the fire hydrant body, and the shock-absorbing protrusion is an elastic block or a flexible block.
2. The above-ground fire hydrant for dispensing foam fire extinguishing agent according to claim 1, characterized in that: The buffer ring block is provided with an arc-shaped variable hole, and the arc-shaped variable hole is located on the end surface of the buffer cylinder.
3. The above-ground fire hydrant for dispensing foam fire extinguishing agent according to claim 1, characterized in that: A buffer inner cavity is provided on the contact buffer ring, and the buffer inner cavity is annularly provided on the contact buffer ring.
4. The above-ground fire hydrant for dispensing foam fire extinguishing agent according to claim 3, characterized in that: The contact buffer ring is provided with a plurality of tearing holes, each of the tearing holes is communicated with the buffer inner cavity, and the buffer inner cavity is an elliptical inner cavity.
5. The above-ground fire hydrant for dispensing foam fire extinguishing agent according to claim 1, characterized in that: Each of the shock-absorbing bumps comprises two symmetrically arranged bumps, each having an outer curved surface on its outer side and an inner curved surface on its inner side, with a deformable space formed between the two bumps. Both bumps are elastic or flexible. The ends of the outer curved surface are adjacent to or connected to the ends of the inner curved surface, giving the bump a crescent shape.
6. The above-ground fire hydrant for dispensing foam fire extinguishing agent according to claim 5, characterized in that: The buffer seat is a rubber seat or a silica gel seat.