Elevator installation buffer pile
By designing elevator installation buffer piles, the interaction of components such as contact plates, buffers, and springs is used to absorb and convert the elevator's kinetic energy, solving the problem of buffer pile damage caused by rapid elevator descent and achieving effective buffering and extended lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI DESEN ELEVATOR ENGINEERING CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-04-28
AI Technical Summary
Existing elevator buffer columns are prone to damage when descending at high speeds, resulting in decreased buffering performance and shortened service life.
An elevator installation buffer pile was designed, including components such as a chassis, a fixed column, a contact plate, a protective column, a buffer, and a compression block. Through the interaction between the contact plate and the contact piece, the buffer's elasticity and gas compression mechanism are used to absorb impact energy and prevent the contact plate from falling excessively. Combined with the reaction force of the spring and the piston, the elevator's kinetic energy is converted into internal energy.
It effectively prevents damage to the device from excessive elevator descent, improves buffer performance, and extends the service life of the buffer column.
Smart Images
Figure CN224172261U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of buffer piles, specifically an elevator installation buffer pile. Background Technology
[0002] As a key component of the elevator safety system, elevator buffer piles are mainly installed at the bottom of the elevator shaft. Their function is to effectively buffer the huge impact force generated by the elevator fall when the elevator car or counterweight device falls accidentally, through its own deformation or energy absorption mechanism, thereby avoiding rigid collision between the elevator car or counterweight device and the bottom of the shaft, maximizing the protection of passenger life and reducing damage to elevator equipment.
[0003] Currently, springs are a commonly used buffer element in the design of elevator buffer columns. Spring buffer columns utilize the elastic properties of springs. When the elevator car or counterweight is impacted, the spring is compressed and deformed, converting the kinetic energy of the elevator into the elastic potential energy of the spring, thereby slowing down the elevator's falling speed.
[0004] If the elevator descends too quickly or there are too many passengers, the spring buffer column may not be able to effectively cushion the elevator, which can easily lead to overload damage to the buffer column, resulting in a decrease in its cushioning performance and a reduction in its service life. Utility Model Content
[0005] Therefore, the purpose of this utility model is to provide an elevator installation buffer post to solve the technical problem that elevators with high descent speeds can damage the buffer post, leading to a decrease in the buffer post's buffering performance.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an elevator installation buffer pile, including a chassis, a fixed column fixed to the top of the chassis, a contact plate connected to the top of the fixed column, protective columns on both sides of the fixed column, a buffer installed inside the protective column, a pressing block connected to the top of the buffer, a buffer rod fixed to one side of the pressing block, and a contact piece at the top of the buffer rod.
[0007] By adopting the above technical solution, the problem of the buffer column being damaged by the elevator descending at a high speed, resulting in a decrease in the buffer column's buffering performance, is solved. When the contact plate descends and contacts the contact piece, the contact plate squeezes the contact piece downwards, causing the contact piece to squeeze and contract the buffer inside the protective column through the squeezing block connected at the bottom. The buffer has strong elasticity and absorbs the squeezing force of the squeezing block. The buffer also hinders the excessive descent of the contact plate through the contact piece, thereby reducing the damage to the overall device caused by the impact of the excessive descent of the contact plate.
[0008] The present invention is further configured such that a piston is provided inside the fixed column, a buffer column is connected to one side of the piston, and the end of the buffer column is connected to the contact plate.
[0009] Preferably, when the elevator descends rapidly, the bottom of the elevator first contacts the upper surface of the contact plate, which then pushes the contact plate downward. During the downward movement of the contact plate, the contact plate pushes the piston downward through the buffer column. The downward movement of the piston compresses the gas inside the fixed column. The contact plate converts the kinetic energy of the elevator into the internal energy of the air inside the fixed column, thereby enabling the contact plate to play a good buffering role for the elevator.
[0010] The present invention is further configured such that a fixing block is fitted on the outer wall of the fixing column, and a spring is installed on the top of the fixing block.
[0011] Preferably, as the contact disc moves downward, the contact disc compresses the spring downward, and the spring gives the contact disc a reaction force, which hinders the contact disc from moving downward.
[0012] The present invention is further configured such that two sets of reinforcing blocks are provided at the bottom of the contact plate, and the reinforcing blocks are located above the contact piece.
[0013] Preferably, when the bottom of the contact plate contacts the contact piece, the contact plate contacts the contact piece through a reinforcing block at the bottom. The reinforcing block has high strength, thereby reducing the impact damage of the contact piece to the bottom of the contact plate.
[0014] The present invention is further configured such that a protective column is fixed to the top of the protective column, and the protective column is sleeved on the outer wall of the buffer rod.
[0015] Preferably, the protective post protects the buffer rod and limits its positional movement to prevent deformation when subjected to significant pressure from the contact plate.
[0016] The present invention is further provided that a protective pad is installed on the top of the protective column, and the protective pad is made of rubber.
[0017] Preferably, when the contact piece is displaced to its lowest point, it will come into contact with the protective post, and the protective pad on top of the protective post can buffer and protect the contact between the contact piece and the protective post.
[0018] The present invention is further configured such that the buffer is made of polyurethane material and the buffer has a hardness between Shore 40D and Shore 80D.
[0019] Preferably, the buffer material of polyurethane has high elasticity and appropriate hardness. When the extrusion block extrudes the buffer, the buffer can absorb and buffer the impact energy transmitted by the contact plate, and the buffer can still push the contact piece back to its original position after multiple impacts.
[0020] The present invention is further configured such that the outer wall of the buffer is provided with multiple sets of grooves, and the outer wall of the protective column is provided with an exhaust hole.
[0021] Preferably, when the buffer is compressed and deformed, the groove on the outer wall of the buffer can provide space for the buffer to deform, and the gas inside the protective column can be discharged through the exhaust hole, providing sufficient space for the buffer to deform.
[0022] In summary, the present invention has the following main advantages:
[0023] 1. This utility model solves the problem that elevators with high descent speeds can damage the buffer column, leading to a decrease in its buffering performance, by setting up a chassis, protective column, contact plate, compression block, and buffer. When the contact plate descends and contacts the contact plate, the contact plate compresses the contact plate downwards, causing the contact plate to compress and contract the buffer inside the protective column through the compression block connected at the bottom. The buffer has strong elasticity and absorbs the compressive force of the compression block. The buffer also hinders the excessive descent of the contact plate through the contact plate, thereby reducing the damage to the overall device caused by the impact of the excessive descent of the contact plate.
[0024] 2. This utility model, by setting up a contact plate, a buffer column, a spring, a piston, a fixed column, and a chassis, ensures that when the elevator descends rapidly, the bottom of the elevator first contacts the upper surface of the contact plate, pressing the contact plate downwards. During the downward movement of the contact plate, the contact plate presses down on the spring, and the spring provides a reaction force to the contact plate, hindering its downward movement. Furthermore, the contact plate, through the buffer column, presses the piston downwards, and the downward movement of the piston compresses the gas inside the fixed column. The contact plate converts the kinetic energy of the elevator into the internal energy of the air inside the fixed column, thus enabling the contact plate to provide a good buffering effect for the elevator. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall device of this utility model;
[0026] Figure 2 This is a partial sectional view of the fixing column of this utility model;
[0027] Figure 3 This is the integral structure of the contact plate of this utility model;
[0028] Figure 4 This is a side cross-sectional view of the protective column of this utility model.
[0029] Explanation of reference numerals in the attached figures:
[0030] 1. Chassis; 2. Fixed column; 3. Contact plate; 301. Buffer column; 302. Piston; 4. Spring; 401. Fixed block; 5. Protective column; 501. Protective column; 502. Buffer rod; 503. Contact piece; 504. Compression block; 505. Vent hole; 506. Protective pad; 507. Reinforcing block; 6. Buffer; 601. Groove. Detailed Implementation
[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0032] The embodiments of this utility model will be described below based on its overall structure.
[0033] Please see Figure 1 — Figure 4 The device includes a chassis 1, a fixed column 2 fixed to the top of the chassis 1, a contact plate 3 connected to the top of the fixed column 2, protective columns 5 on both sides of the fixed column 3, a buffer 6 installed inside the protective column 5, a compression block 504 connected to the top of the buffer 6, a buffer rod 502 fixed to one side of the compression block 504, and a contact piece 503 at the top of the buffer rod 502. This solves the problem that a fast-descending elevator can damage the buffer column, leading to a decrease in the buffer column's buffering performance. When the contact plate 3 descends and contacts the contact piece 503, the contact plate 3 compresses the contact piece 503 downwards, causing the contact piece 503 to compress and contract the buffer 6 inside the protective column 5 through the compression block 504 connected at the bottom. The buffer 6 has strong elasticity and absorbs the compressive force of the compression block 504. The buffer 6, through the contact piece 503, hinders the excessive descent of the contact plate 3, thereby reducing the damage to the overall device caused by the excessive descent of the contact plate 3.
[0034] For details regarding the above embodiments, please refer to [link / reference]. Figure 2 A piston 302 is installed inside the fixed column 2. A buffer column 301 is connected to one side of the piston 302. The end of the buffer column 301 is connected to the contact plate 3. When the elevator descends rapidly, the bottom of the elevator first contacts the upper surface of the contact plate 3 and pushes the contact plate 3 downward. During the downward movement of the contact plate 3, the contact plate 3 pushes the piston 302 downward through the buffer column 301. The downward movement of the piston 302 compresses the gas inside the fixed column 2. The contact plate 3 converts the kinetic energy of the elevator into the internal energy of the air inside the fixed column 2, so that the contact plate 3 can play a good buffering role for the elevator.
[0035] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 A fixing block 401 is fitted on the outer wall of the fixing column 2. A spring 4 is installed on the top of the fixing block 401. During the downward movement of the contact plate 3, the contact plate 3 presses the spring 4 downward, and the spring 4 gives the contact plate 3 a reaction force, which hinders the downward movement of the contact plate 3.
[0036] For details regarding the above embodiments, please refer to [link / reference]. Figure 3 Two sets of reinforcing blocks 507 are provided at the bottom of the contact plate 3, and the reinforcing blocks 507 are located directly above the contact piece 503. When the bottom of the contact plate 3 contacts the contact piece 503, the contact plate 3 contacts the contact piece 503 through the reinforcing blocks 507 at the bottom. The reinforcing blocks 507 have high strength, thereby reducing the impact damage of the contact piece 503 to the bottom of the contact plate 3.
[0037] For details regarding the above embodiments, please refer to [link / reference]. Figure 3 The top of the protective column 5 is fixed with a protective column 501, and the protective column 501 is sleeved on the outer wall of the buffer rod 502. The protective column 501 protects the buffer rod 502 and limits the position movement of the buffer rod 502 to prevent the buffer rod 502 from deforming under the large pressure of the contact plate 3.
[0038] For details regarding the above embodiments, please refer to [link / reference]. Figure 4 The top of the protective post 501 is equipped with a protective pad 506, which is made of rubber. When the contact piece 503 is moved to the lowest end, the contact piece 503 will contact the protective post 501. The protective pad 506 on the top of the protective post 501 can buffer and protect the contact between the contact piece 503 and the protective post 501.
[0039] For details regarding the above embodiments, please refer to [link / reference]. Figure 4 The buffer 6 is made of polyurethane material and has a hardness between Shore D40 and Shore D80. The polyurethane material buffer 6 has high elasticity and appropriate hardness. When the extrusion block 504 extrudes the buffer 6, the buffer 6 can absorb and buffer the impact energy transmitted by the contact plate 503. After multiple impacts, the buffer 6 can still push the contact plate 503 back to its original position.
[0040] For details regarding the above embodiments, please refer to [link / reference]. Figure 4 The outer wall of the buffer 6 is provided with multiple sets of grooves 601, and the outer wall of the protective column 5 is provided with exhaust holes 505. When the buffer 6 is compressed and deformed, the grooves 601 on the outer wall of the buffer 6 can provide space for the buffer 6 to deform, and the gas inside the protective column 5 can be discharged through the exhaust holes 505, providing sufficient space for the buffer 6 to deform.
[0041] In practical operation, when the elevator descends rapidly, the bottom of the elevator first contacts the upper surface of the contact plate 3, pressing the contact plate 3 downward. During the downward movement of the contact plate 3, the contact plate 3 presses down on the spring 4, and the spring 4 provides a reaction force to the contact plate 3, hindering its downward movement. The contact plate 3 also presses the piston 302 downward through the buffer column 301. The downward movement of the piston 302 compresses the gas inside the fixed column 2. When the contact plate 3 descends and contacts the contact piece 503, the contact plate 3 presses the contact piece 503 downward, causing the contact piece 503 to compress and contract the buffer 6 inside the protective column 5 through the compression block 504 connected at the bottom. The buffer 6 has strong elasticity and absorbs the compressive force of the compression block 504. The buffer 6, through the contact piece 503, hinders the excessive descent of the contact plate 3, thereby reducing the damage to the overall device caused by the impact of the excessive descent of the contact plate 3.
[0042] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. An elevator mounting buffer pile, comprising a chassis (1), characterized in that: A fixing post (2) is fixed to the top of the chassis (1). A contact plate (3) is connected to the top of the fixing post (2). Protective posts (5) are provided on both sides of the fixing post (2). A buffer (6) is installed inside the protective post (5). A squeezing block (504) is connected to the top of the buffer (6). A buffer rod (502) is fixed to one side of the squeezing block (504). A contact piece (503) is provided at the top of the buffer rod (502).
2. The elevator installation buffer pile according to claim 1, characterized in that: The fixed column (2) is equipped with a piston (302), and a buffer column (301) is connected to one side of the piston (302). The end of the buffer column (301) is connected to the contact plate (3).
3. The elevator installation buffer pile according to claim 1, characterized in that: The outer wall of the fixed column (2) is fitted with a fixing block (401), and a spring (4) is installed on the top of the fixing block (401).
4. The elevator installation buffer pile according to claim 1, characterized in that: The bottom of the contact plate (3) is provided with two sets of reinforcing blocks (507), and the reinforcing blocks (507) are located above the contact piece (503).
5. The elevator installation buffer pile according to claim 1, characterized in that: The top of the protective column (5) is fixed with a protective column (501), and the protective column (501) is sleeved on the outer wall of the buffer rod (502).
6. The elevator installation buffer pile according to claim 5, characterized in that: The top of the protective column (501) is equipped with a protective pad (506), and the protective pad (506) is made of rubber.
7. The elevator installation buffer pile according to claim 1, characterized in that: The buffer (6) is made of polyurethane material and the buffer (6) is made of a material with a hardness between Shore D40 and Shore D80.
8. The elevator installation buffer pile according to claim 1, characterized in that: The outer wall of the buffer (6) is provided with multiple sets of grooves (601), and the outer wall of the protective column (5) is provided with an exhaust hole (505).