Compression-resistant structure of underground fire hydrant
By designing the compressive structure of the inner pipe body, outer pipe body and elastic layer at the water pipe connection of the buried fire hydrant, the damage and water leakage at the connection caused by the extrusion of the buried object are solved, and a higher compressive effect is achieved.
Patent Information
- Application Number
- CN202420727650.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-10
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-04-10
AI Technical Summary
The existing buried fire hydrants are easily squeezed by buried objects underground, resulting in long-term pressure and damage to the connection point with the water pipe, resulting in water leakage and waste of water resources.
A buried fire hydrant compressive structure is designed, including an inner pipe body, an outer pipe body and an elastic layer. The outer wall of the inner pipe body is equipped with elastic convex strips, and the inner wall of the outer pipe body is connected to the middle pipe body through an elastic layer to enhance the compressive resistance.
Through this structure, the compressive resistance of the buried fire hydrant and the water pipe connection is enhanced, damage and water leakage caused by squeezing is avoided, and the compressive resistance is improved.
Smart Images
Figure CN222632405U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fire fighting equipment, in particular to a buried fire hydrant pressure-resistant structure. Background Art
[0002] Traditional fire hydrants stand on the ground and are easily hit, which poses a great safety hazard. Therefore, underground fire hydrants are gradually being widely used and have achieved better results. However, existing underground fire hydrants will be squeezed by buried objects underground, and the connection between the fire hydrant and the water pipe is usually the weakest point. Long-term squeezing will damage the connection with the water pipe, resulting in leakage after the connection is damaged, resulting in a waste of water resources. Utility Model Content
[0003] The utility model aims to solve the problem of compression resistance of buried fire hydrants in the prior art and proposes a compression resistance structure of buried fire hydrants.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A buried fire hydrant pressure-resistant structure comprises an inner tube body and an outer tube body sleeved on the outer side of the inner tube body; the outer wall of the inner tube body is provided with elastic convex strips; an elastic layer is provided between the outer tube body and the middle tube body; the inner wall of the outer tube body is connected to the outer wall of the middle tube body through the elastic layer, and the middle tube body is sleeved on the outer side of the inner tube body.
[0006] Preferably, both ends of the inner tube body are provided with connecting parts; the connecting parts are annular; the inner wall diameter of the connecting parts matches the inner wall diameter of the inner tube body; the outer wall diameter of the connecting parts directly matches the outer wall of the outer tube body.
[0007] Preferably, matching threaded holes are provided on the inner tube body and the connecting portion; the inner tube body and the connecting portion are fixedly connected via threads.
[0008] Preferably, a connecting flange is connected to the connecting portion at one end via a threaded hole; the connecting flange matches the flange of the water receiving end of the fire hydrant; and the connecting flange and the flange of the water receiving end of the fire hydrant are connected via a screw.
[0009] Preferably, the inner tube body and the outer tube body have the same length.
[0010] Preferably, a plurality of the elastic convex strips are provided; the elastic convex strips are arranged around the outer wall of the inner tube body; and the cross section of the elastic convex strips is trapezoidal.
[0011] Preferably, the inner tube body is sleeved on the outside of the fire hydrant water pipe; and the inner wall diameter of the inner tube body is larger than the outer wall diameter of the fire hydrant water pipe.
[0012] Compared with the prior art, the utility model provides a buried fire hydrant pressure-resistant structure, which has the following beneficial effects:
[0013] 1. The pressure-resistant structure of the buried fire hydrant is achieved by sleeve-mounting an inner tube body and an outer tube body at the connection between the buried fire hydrant and the water pipe, and arranging elastic convex strips on the outer side of the inner tube body to protect the inner tube body while enhancing the pressure resistance; the elastic layer and the middle tube body arranged on the inner side of the outer tube body are supported, and when the outer tube body is subjected to pressure, the elastic layer and the middle tube body are squeezed, and the symmetrical elastic layers provide resilience, so that the outer tube body can achieve the pressure-resistant effect while not being easily squeezed and broken, thereby increasing the pressure-resistant effect of the buried fire hydrant.
[0014] 2. The pressure-resistant structure of the buried fire hydrant avoids lateral movement of the inner and outer pipe bodies by setting a connection part on the inner pipe body, and is fixed at the connection between the fire hydrant and the water pipe through a connecting flange to enhance the pressure resistance of the buried fire hydrant connection.
[0015] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of the utility model;
[0017] Figure 2 It is a schematic diagram of the structure of the inner tube body and the outer tube body in the utility model;
[0018] Figure 3 It is a cross-sectional view of the inner tube body in the utility model;
[0019] Figure 4 It is a side view of the utility model;
[0020] Figure 5 This is a schematic diagram of the connection structure between the connecting part and the inner tube body in the utility model;
[0021] Figure 6 It is a schematic diagram of the overall connection structure in the utility model.
[0022] In the figure: 1 inner tube body, 2 outer tube body, 3 elastic convex strip, 4 elastic layer, 5 middle tube body, 6 connecting part, 61 threaded hole, 7 connecting flange. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.
[0025] Reference Figure 1-4 , comprising an inner tube body 1 and an outer tube body 2 sleeved on the outer side of the inner tube body 1; the outer wall of the inner tube body 1 is provided with elastic convex strips 3; an elastic layer 4 is provided between the outer tube body 2 and the middle tube body 5; the inner wall of the outer tube body 2 is connected to the outer wall of the middle tube body 5 through the elastic layer 4, and the middle tube body 5 is sleeved on the outer side of the inner tube body 1.
[0026] The inner tube body 1 and the outer tube body 2 have the same length; the inner tube body 1 is sleeved on the outside of the fire hydrant water pipe; and the inner wall diameter of the inner tube body 1 is larger than the outer wall diameter of the fire hydrant water pipe.
[0027] The elastic ridges 3 are provided in plurality; the elastic ridges 3 are arranged around the outer wall of the inner tube body 1; and the cross section of the elastic ridges 3 is trapezoidal. By providing the elastic ridges 3, the inner tube body is protected while the pressure resistance is enhanced.
[0028] When the outer pipe body is subjected to pressure, the elastic layer and the middle pipe body are squeezed, and the symmetrical elastic layer provides resilience, so that the outer pipe body can achieve the effect of pressure resistance while not being easily squeezed and broken, thereby increasing the pressure resistance effect of the buried fire hydrant.
[0029] Reference Figure 5-6 , connecting parts 6 are provided at both ends of the inner tube body 1; the connecting part 6 is annular; the inner wall diameter of the connecting part 6 matches the inner wall diameter of the inner tube body 1; the outer wall diameter of the connecting part 6 directly matches the outer wall of the outer tube body 2; matching threaded holes 61 are provided on the inner tube body 1 and the connecting part 6; the inner tube body 1 and the connecting part 6 are fixedly connected by threads; a connecting flange 7 is connected to the connecting part 6 at one end through a threaded hole 61; the connecting flange 7 matches the flange of the water receiving end of the fire hydrant; the connecting flange 7 is connected to the flange of the water receiving end of the fire hydrant through a screw.
[0030] A connection portion is provided on the inner pipe body to avoid lateral movement of the inner pipe body and the outer pipe body, and the connection flange is fixed to the connection between the fire hydrant and the water pipe to enhance the pressure resistance of the buried fire hydrant connection.
[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A buried fire hydrant pressure-resistant structure, characterized in that: The invention comprises an inner tube body (1) and an outer tube body (2) sleeved on the outer side of the inner tube body (1); the outer wall of the inner tube body (1) is provided with elastic convex strips (3); an elastic layer (4) is provided between the outer tube body (2) and the middle tube body (5); the inner wall of the outer tube body (2) is connected to the outer wall of the middle tube body (5) via the elastic layer (4); and the middle tube body (5) is sleeved on the outer side of the inner tube body (1).
2. The buried fire hydrant pressure-resistant structure according to claim 1, characterized in that: Both ends of the inner tube body (1) are provided with connecting parts (6); the connecting parts (6) are in a circular ring shape; the inner wall diameter of the connecting part (6) matches the inner wall diameter of the inner tube body (1); and the outer wall diameter of the connecting part (6) directly matches the outer wall of the outer tube body (2).
3. The buried fire hydrant pressure-resistant structure according to claim 2, characterized in that: The inner tube body (1) and the connecting portion (6) are provided with matching threaded holes (61); the inner tube body (1) and the connecting portion (6) are fixedly connected via threads.
4. The buried fire hydrant pressure-resistant structure according to claim 3, characterized in that: A connecting flange (7) is connected to the connecting portion (6) at one end via a threaded hole (61); the connecting flange (7) matches the flange of the water receiving end of the fire hydrant; the connecting flange (7) is connected to the flange of the water receiving end of the fire hydrant via a screw.
5. The buried fire hydrant pressure-resistant structure according to claim 1, characterized in that: The inner tube body (1) and the outer tube body (2) have the same length.
6. The buried fire hydrant pressure-resistant structure according to claim 1, characterized in that: A plurality of the elastic convex strips (3) are provided; the elastic convex strips (3) are arranged in a ring on the outer wall of the inner tube body (1); and the cross section of the elastic convex strips (3) is trapezoidal.
7. The buried fire hydrant pressure-resistant structure according to claim 1, characterized in that: The inner tube body (1) is sleeved on the outside of the fire hydrant water pipe; and the inner wall diameter of the inner tube body (1) is greater than the outer wall diameter of the fire hydrant water pipe.