Elastic cushion block capable of preventing beam from falling
By adopting a combined structure of rubber body, high-strength spring and rubber protective layer in the anti-fall beam device, the problems of short buffer distance and poor rebound are solved, and a larger buffer distance and rebound force are achieved, which prevents damage to the beam body and reduces production costs.
Patent Information
- Application Number
- CN202421906500.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-08
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-08-08
AI Technical Summary
The buffer pads of the existing longitudinal anti-falling beam device have a short buffer distance and poor rebound ability, which cannot effectively deal with the longitudinal displacement of the beam body, which can easily lead to damage to the beam body.
It adopts an internal rubber body and a high-strength spring structure, the outer covers the rubber protective layer, and a collision plate is installed at both ends, which is connected by connecting rods to form an anti-fall beam elastic pad with flexibility and rebound force.
It improves the buffer distance and rebound ability, effectively reduces external forces, prevents beam body damage, and simplifies the processing technology and reduces production costs.
Smart Images
Figure CN222893485U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of anti-falling beam devices, and in particular relates to an anti-falling beam elastic pad. Background Art
[0002] The anti-fall beam device is a protective device used in bridge structures to resist earthquakes and prevent the beam from falling, colliding or detaching. According to their functions, the anti-fall beam device is generally divided into two types: transverse anti-fall beams and longitudinal anti-fall beams. The main function of the transverse anti-fall beam is: when used for a long time or when an earthquake occurs, the transverse anti-fall beam will produce lateral tension on the beam, effectively preventing the beam from falling laterally. The main function of the longitudinal anti-fall beam is: when the two beams move longitudinally, the distance between the beams or the abutments changes, the beams or the abutments contact and are subjected to force with the buffer pads, and the buffer pads are continuously under pressure, which can effectively reduce and digest the external squeezing force and prevent the beam from being damaged.
[0003] At present, the buffer pads used in the longitudinal anti-fall beams in China basically adopt the structure of plate-type rubber bearings, that is, the stiffened steel edge and the rubber layer overlap to form a shape. The buffer pads of this structure have a strong pressure-bearing capacity, but their buffering energy dissipation effect is not satisfactory. When impacted, the buffer pads have fixed rigidity, short buffering distance, and poor resilience. Especially when the beam body moves too much, the buffer pads have no compression space and basically lose their buffering capacity, which can easily cause damage to the beam body. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide an anti-falling beam elastic pad which has a large buffer distance, strong rebound ability and a certain reset ability to cope with the longitudinal displacement of the beam body.
[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: it includes an internal rubber body, a high-strength spring is arranged in the internal rubber body, a rubber protective layer is arranged outside the internal rubber body and the high-strength spring, anti-collision plates are arranged at both ends of the internal rubber body and the rubber protective layer, and a connecting rod hole is arranged in the center of the internal rubber body and the anti-collision plate.
[0006] Its additional technical features are: the cross-sections of the internal rubber body and the rubber protective layer are rectangular, circular, triangular or other geometric shapes;
[0007] The cross section of the connecting rod hole is rectangular, circular, triangular or other geometric shapes.
[0008] When preparing the anti-drop beam elastic pad provided by the utility model, first brush the high-strength spring with adhesive for standby use. Then, according to the product size, the internal rubber body is coated on the steel core. Then the high-strength spring is inserted into the internal rubber body. Thereafter, the rubber protective layer is coated on the outer layer of the internal rubber body and the high-strength spring, and anti-collision plates are set at both ends of the internal rubber body and the rubber protective layer, and the elastic pad is prefabricated. Finally, the prefabricated elastic pad containing the steel core is put into the mold as a whole for pressure vulcanization, and then demolded, trimmed, and inspected. When in use, the anti-drop beam elastic pad is set between the two beams and on the outside of the beam through a connecting rod with a nut. When the two beams move longitudinally, the distance between the beams or the abutments changes, the beams or the abutments contact and are subjected to force with the buffer pad, and the buffer pad is continuously subjected to pressure, which can effectively reduce and absorb the external force of extrusion and prevent the beam from being damaged.
[0009] The anti-drop beam elastic pad provided by the utility model is vulcanized by an internal rubber body, a high-strength spring, a rubber protective layer, and an anti-collision plate. It has a larger buffer distance and flexibility while ensuring the required stiffness, and has stronger anti-collision and recovery capabilities. The anti-collision plates are located at both ends of the elastic pad and are connected to the rubber protective layer or the high-strength spring. The high-strength spring can adjust the stiffness and buffer distance according to the engineering requirements. The rubber protective layer and the internal rubber body can be any elastic material such as plastic, rubber, polyurethane, etc. The cross-section of the internal rubber body and the rubber protective layer is rectangular, circular, triangular or other geometric shapes, and the cross-section of the connecting rod hole is rectangular, circular, triangular or other geometric shapes, so that the elastic pad can be any shape such as rectangular, circular, triangular, etc. and can be combined with a connecting rod of any shape to form an anti-drop beam device.
[0010] The anti-drop beam elastic pad provided by the utility model changes the internal laminated structure of steel plates and rubber into a high-strength spring structure, which has stronger flexibility and increases the rigidity with increasing compression distance, thereby greatly improving the buffering distance. Moreover, since the high-strength spring has a rebound force, after being compressed, the rebound force will act in a balanced and stable reverse direction on the beam body, thereby assisting the beam body in resetting to a great extent and achieving the dual purposes of preventing collision and adjusting the position of the beam body. At the same time, since the pad changes the internal laminated steel plate into a high-strength spring, its processing technology is simpler and the production cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a structural schematic diagram of the anti-falling beam elastic pad of the utility model;
[0012] Figure 2 This is the end view of the elastic pad to prevent beam from falling;
[0013] Figure 3 Schematic diagram of the installation structure of the elastic pad to prevent the beam from falling. DETAILED DESCRIPTION
[0014] The specific structure of the anti-falling beam elastic pad of the utility model is further described in detail below with reference to the accompanying drawings.
[0015] like Figure 1 As shown, the utility model anti-drop beam elastic pad includes an internal rubber body 1, a high-strength spring 2 is arranged inside the internal rubber body 1, a rubber protective layer 3 is arranged outside the internal rubber body 1 and the high-strength spring 2, anti-collision plates 4 are arranged at both ends of the internal rubber body 1 and the rubber protective layer 3, and a connecting rod hole 5 is arranged in the center of the internal rubber body 1 and the anti-collision plate 4.
[0016] like Figure 2 As shown, a connecting rod hole 5 is provided at the center of the anti-collision plate 4 .
[0017] like Figure 3 As shown, the anti-drop beam elastic pad composed of the internal rubber body, high-strength spring, rubber protective layer and anti-collision plate 4 is arranged between the two cross beams 8 and on the outside of the cross beam 8 through a connecting rod 7 with a nut 6.
[0018] When preparing the anti-drop beam elastic pad provided by the utility model, first apply adhesive to the high-strength spring 2 for standby use. Then, according to the product size, the internal rubber body 1 is coated on the steel core. Then the high-strength spring 2 is inserted into the internal rubber body 1. Thereafter, the rubber protective layer 3 is coated on the outer layer of the internal rubber body 1 and the high-strength spring 2, and anti-collision plates 4 are set at both ends of the internal rubber body 1 and the rubber protective layer 2, and the elastic pad is prefabricated. Finally, the prefabricated elastic pad containing the steel core is put into the mold as a whole for pressure vulcanization, and then demolded, trimmed, and inspected. When in use, the anti-drop beam elastic pad is set between the two beams 8 and on the outside of the beam 8 through the connecting rod 7 with the nut 6. When the two beams 8 move longitudinally, the distance between the beams 8 and the beams 8 or the abutments changes, the beams 8 or the abutments contact and are subjected to force with the buffer pad, and the buffer pad is continuously subjected to pressure, which can effectively reduce and digest the external force of extrusion and prevent the beam from being damaged.
[0019] The anti-drop beam elastic pad provided by the utility model is vulcanized by an internal rubber body 1, a high-strength spring 2, a rubber protective layer 3, and an anti-collision plate 4. It has a larger buffer distance and flexibility while ensuring the required stiffness, and has stronger anti-collision and recovery capabilities. The anti-collision plate 4 is located at both ends of the elastic pad and is connected to the rubber protective layer 3 or the high-strength spring 2. The high-strength spring 2 can adjust the stiffness and buffer distance according to the engineering requirements. The rubber protective layer 3 and the internal rubber body 1 can be any elastic material such as plastic, rubber, polyurethane, etc. The cross-section of the internal rubber body 1 and the rubber protective layer 3 is rectangular, circular, triangular or other geometric shapes, and the cross-section of the connecting rod hole 5 is rectangular, circular, triangular or other geometric shapes, so that the elastic pad can be any shape such as rectangular, circular, triangular, etc. and can be combined with a connecting rod 7 of any shape to form an anti-drop beam device.
[0020] The anti-drop beam elastic pad provided by the utility model changes the internal laminated structure of steel plates and rubber into a high-strength spring 2 structure, which has stronger flexibility and increases stiffness with increasing compression distance, greatly improving the buffering distance. Moreover, since the high-strength spring 2 has a rebound force, after being compressed, the rebound force will act in a balanced and stable reverse direction on the beam body, which can greatly assist the beam body in resetting, achieving the dual purposes of anti-collision and adjusting the position of the beam body. At the same time, since the pad changes the internal laminated steel plate into a high-strength spring 2, its processing technology is simpler and the production cost is reduced.
[0021] The anti-falling beam elastic pad provided by the utility model is not limited to the above-mentioned structure. Any modifications, equivalent replacements and improvements made on the basis of the utility model should be included in the protection scope of the utility model.
Claims
1. Anti-falling beam elastic pad, characterized by: It comprises an internal rubber body, a high-strength spring is arranged in the internal rubber body, a rubber protective layer is arranged outside the internal rubber body and the high-strength spring, anti-collision plates are arranged at both ends of the internal rubber body and the rubber protective layer, and a connecting rod hole is arranged in the center of the internal rubber body and the anti-collision plate.
2. The anti-falling beam elastic pad according to claim 1 is characterized in that: The cross sections of the internal rubber body and the rubber protective layer are rectangular, circular or triangular.
3. The anti-falling beam elastic pad according to claim 1 is characterized in that: The cross section of the connecting rod hole is rectangular, circular or triangular.