Buffering device of construction hoist
Through the combination of multiple guide rods and auxiliary buffer components, the tilt and off-position problems caused by uneven force during the transport of heavy objects by scissor lifts are solved, and the stability and safety of the equipment are improved.
Patent Information
- Application Number
- CN202420841426.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-04-22
AI Technical Summary
During the transport of heavy objects, the scissor lift is susceptible to transverse shearing forces due to uneven force during the process of transporting heavy objects, resulting in tilt and off-position, which increases the risk of safety accidents.
Multiple guide rods are used to allocate the shock force of the bracket, and cooperate with auxiliary buffer components, including buffer blocks and buffer springs, spread the extrusion pressure given by the heavy objects, buffer the transverse shear force, avoid tilt and off-position, and improve the stability of the bracket. Sex and safety.
Effectively allocate and buffer the vibration and shear force of the bracket, improve the stability and safety of the elevator, reduce the risk of bracket damage, and enhance the safety of transporting heavy objects.
Smart Images
Figure CN222361911U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of elevators, in particular to a buffer device for a construction elevator. Background Art
[0002] Elevators and lifting work platforms are a kind of multifunctional lifting mechanical equipment. There are many types of them, which can be roughly divided into fixed elevators and mobile elevators. They can be divided into guide rail type, articulated arm type, scissors type, chain type, loading and unloading platforms, etc. according to their types.
[0003] Among them, scissor-type lifts are more common, and mobile scissor-type lifts are more widely used in the construction process. The scissor-type lift's scissor-type mechanical structure makes the lifting platform have higher stability. The wide working platform and higher carrying capacity make the high-altitude working range larger and suitable for multiple people to work at the same time, making work more efficient and safer. However, in the process of transporting heavy objects, due to uneven force, the bracket is prone to lateral shear force, which makes it easy to tilt and cause dislocation, causing damage to the supporting bracket, which is easy to cause safety accidents.
[0004] Therefore, a buffer device for a construction hoist is proposed. Utility Model Content
[0005] The purpose of the utility model is to provide a buffer device for a construction elevator in view of the above-mentioned problems. The utility model distributes the vibration force when the bracket stops through multiple guide rods, and cooperates with the function of the auxiliary buffer component to greatly offset it, thereby ensuring the stability of the bracket operation; and when the elevator transports heavy objects, multiple guide rods assist in directly spreading the extrusion force given by the heavy objects, and cooperate with the auxiliary buffer component to buffer the lateral shear force received by the bracket, thereby avoiding misalignment caused by tilting, reducing the probability of damage to the bracket, and improving safety. In order to achieve the above-mentioned utility model purpose, the technical solution adopted by the utility model is as follows:
[0006] According to one aspect of the utility model, a buffer device for a construction elevator is provided, comprising a base, a plurality of movable wheels are evenly distributed at the lower end of the base, a placement cavity is opened at the top of the base, a bracket is fixedly installed in the placement cavity, and the bracket is a scissors-type bracket, the bracket is composed of a plurality of square rectangular tubes and connecting rods, a plurality of the square rectangular tubes are staggered to form two symmetrical scissors-type frames, and a plurality of inflection points on the two scissors-type frames correspond, a plurality of the connecting rods are all arranged on the corresponding inflection points, a platform is provided on the top of the bracket, a driving unit for driving the bracket to be telescoped is provided on the bracket, a plurality of guide rods are evenly distributed in the placement cavity, the other end of each of the guide rods is connected to the bottom of the platform, and a plurality of guide rods are evenly distributed around the bracket, and an auxiliary buffer assembly is provided on the guide rod.
[0007] Preferably, the driving unit includes an oil cylinder, a cylinder and a connecting seat. Two cylinders are provided on the bracket, and the two cylinders are respectively mounted on the connecting rods on both sides, and the two cylinders are staggered up and down. Each of the cylinders can rotate in a circle on the corresponding connecting rod. Each of the cylinders is provided with a connecting seat, and the two ends of the oil cylinder are respectively connected to the two connecting seats.
[0008] Preferably, the auxiliary buffer assembly includes a buffer block and a buffer spring. A buffer block is provided at the connection between each guide rod and the platform. The buffer block can be made of rubber or polyurethane material. Each guide rod is a telescopic rod, and a buffer spring is wound around one end of each guide rod close to the platform.
[0009] Preferably, each of the guide rods is in the shape of a multi-faceted column.
[0010] Preferably, a plurality of air holes are formed at the lower end of each guide rod, and the plurality of air holes are arranged in a circular array.
[0011] Preferably, each of the air holes is arranged to be tilted downward, and the downward tilt angle of each air hole is between 30° and 45°.
[0012] Preferably, a narrow throat is provided in the middle of each of the air hole channels.
[0013] Preferably, each of the buffer springs is provided with a plurality of buffer spacings.
[0014] Preferably, a plurality of buffer pads are provided on the bracket, and each buffer pad is arranged above the corresponding square rectangular tube.
[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:
[0016] 1. The construction elevator buffer device described in the utility model distributes the vibration force when the bracket stops through multiple guide rods, and cooperates with the function of auxiliary buffer components to greatly offset the vibration force, thereby ensuring the stability of the bracket operation; and when the elevator transports heavy objects, multiple guide rods assist in directly spreading the extrusion force given by the heavy objects, and cooperate with the auxiliary buffer components to buffer the lateral shear force exerted on the bracket, avoiding dislocation caused by tilting, reducing the chance of damage to the bracket, and improving safety.
[0017] 2. The utility model describes a buffer device for a construction elevator, which has a plurality of air holes at the lower end of the guide rod, so that the interior of the guide rod is equivalent to a closed cavity. When the guide rod retracts, the air inside the guide rod is squeezed to the outside of the guide rod through the plurality of air holes. Since the air volume of the air holes is small, the entire contraction process has a certain buffering effect, thereby ensuring the stability of the elevator. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a three-dimensional diagram of the utility model;
[0019] Figure 2 It is a partial cross-sectional view of the front view of the utility model;
[0020] Figure 3 This utility model Figure 2 A magnified image of point A;
[0021] Figure 4 This utility model Figure 2 A magnified view of point B;
[0022] Figure 5 It is a schematic diagram of the internal partial structure of the utility model;
[0023] In the attached drawings, 1, base; 2, moving wheel; 3, placement cavity; 4, bracket; 5, platform; 6, guide rod; 7, buffer block; 8, buffer spring; 9, air hole; 10, narrow throat; 11, buffer pad; 12, connecting rod; 13, oil cylinder; 14, cylinder; 15, connecting seat. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many details listed in the specification are only for the purpose of enabling readers to have a thorough understanding of one or more aspects of the utility model, and these aspects of the utility model can be realized even without these specific details.
[0025] See also Figures 1 to 5 The utility model provides a buffer device for a construction elevator, and the technical solution is as follows:
[0026] It includes a base 1, a plurality of moving wheels 2 are evenly distributed at the lower end of the base 1, a placement cavity 3 is opened at the top of the base 1, a bracket 4 is fixedly installed in the placement cavity 3, and the bracket 4 is a scissors-type bracket 4, the bracket 4 is composed of a plurality of square rectangular tubes and a connecting rod 12, the plurality of square rectangular tubes are staggered to form two symmetrical scissors-type frames, and the plurality of inflection points on the two scissors-type frames correspond, and the plurality of connecting rods 12 are all arranged on the corresponding inflection points, a platform 5 is provided on the top of the bracket 4, and a driving unit for driving the bracket 4 to extend and retract is provided on the bracket 4, a plurality of guide rods 6 are evenly distributed in the placement cavity 3, the other end of each guide rod 6 is connected to the bottom of the platform 5, and the plurality of guide rods 6 are evenly distributed around the bracket 4, and an auxiliary buffer component is provided on the guide rod 6.
[0027] The driving unit includes an oil cylinder 13, a cylinder 14 and a connecting seat 15. Two cylinders 14 are provided on the bracket, and the two cylinders 14 are respectively mounted on the connecting rods 12 on both sides, and the two cylinders 14 are staggered up and down. Each cylinder 14 can rotate in a circle on the corresponding connecting rod 12. Each cylinder 14 is provided with a connecting seat 15, and the two ends of the oil cylinder 13 are respectively connected to the two connecting seats 15.
[0028] There are many types of lifts, among which scissor lifts are more common, and mobile scissor lifts are more commonly used in the construction process. The scissor mechanical structure of the scissor lift makes the lifting platform have higher stability, a wide working platform and a higher carrying capacity, which makes the high-altitude working range larger and suitable for multiple people to work at the same time, making the work more efficient and safer; however, in the process of transporting heavy objects, due to uneven force, the bracket 4 is easily subjected to lateral shear force, and then it is easy to tilt and cause dislocation, so that the support bracket 4 is damaged, which is easy to cause safety accidents;
[0029] The oil cylinder 13 of the driving unit generally has a relatively long-lasting bearing capacity. The driving force of the oil cylinder 13 drives the scissor-type bracket 4 to extend / contract. During the process, since the bracket 4 will extend / contract under the action of the oil cylinder 13, the corresponding connecting rod 12 will follow and move up and down. The cylinder 14 is sleeved on the connecting rod 12, and the connecting seat 15 is set on the cylinder 14. The cylinder 14 will move and rotate accordingly to ensure that the bracket 4 will not interfere with the extension / contraction of the oil cylinder 13, avoid mutual interference between the bracket 4 and the oil cylinder 13, and improve the stability of the lift when moving up and down; and when the bracket 4 is extended / contracted to a certain At the moment of stopping at a fixed height, the platform 5 will vibrate slightly, and the vibration will be transmitted from the platform 5 to the bracket 4, which will affect the connection stability between the bracket 4 and the platform 5 in the long run. The vibration force is distributed by multiple guide rods 6, and with the help of the auxiliary buffer component, it can be greatly offset, thereby ensuring the stability of the operation of the bracket 4; and when the elevator transports heavy objects, the multiple guide rods 6 help to directly spread the extrusion force given by the heavy objects, and with the help of the auxiliary buffer component, the lateral shear force on the bracket 4 can be buffered to avoid dislocation caused by tilting, reduce the chance of damage to the bracket 4, and improve safety.
[0030] The auxiliary buffer assembly includes a buffer block 7 and a buffer spring 8. A buffer block 7 is provided at the connection between each guide rod 6 and the platform 5. The buffer block 7 can be made of rubber or polyurethane material. Each guide rod 6 is a telescopic rod, and each guide rod 6 is wound with a buffer spring 8 at one end close to the platform 5; the buffer block 7 can play a certain limiting role, limiting the lateral translation variable of the platform 5, and the buffer block 7 is arranged between the guide rod 6 and the platform 5. When the elevator is lifted, the guide rod 6 and the platform 5 will be subjected to mutual impact force, and the buffer block 7 can play a buffering effect to weaken the impact force, thereby ensuring the stability of the platform 5 and the service life of the guide rod 6; and the upper end of each guide rod 6 is wound with a buffer spring 8, which has a buffering effect, further weakening and slowing down the impact force between the guide rod 6 and the platform 5, thereby ensuring the stability of the elevator operation.
[0031] The shape of each guide rod 6 is a multi-faceted column; the contact area between the planes is the largest. If the guide rod 6 is cylindrical, it will be slightly deformed when subjected to lateral shear force, and the contact area cannot be maximized. By setting the guide rod 6 to a multi-faceted column, such as a six-sided column, it can be subjected to shear forces in multiple directions to ensure that the contact area is maximized, so that the shear force can be evenly distributed over the entire plane, thereby improving the guide rod 6's resistance to shear force and preventing the bracket 4 from being damaged by the lateral shear force.
[0032] A plurality of air holes 9 are provided at the lower end of each guide rod 6, and the plurality of air holes 9 are arranged in a circular array; the interior of the guide rod 6 is equivalent to a closed cavity, and a plurality of air holes 9 are provided at the lower end of the guide rod 6. When the bracket 4 drives the platform 5 to retract, the guide rod 6 retracts synchronously, and the air inside the guide rod 6 is squeezed to the outside of the guide rod 6 through the plurality of air holes 9. Since the ventilation volume of the air holes 9 is small, the entire contraction process has a certain buffering effect, thereby ensuring the stability of the elevator lifting.
[0033] Each air hole 9 is arranged to be tilted downward, and the downward tilt angle of each air hole 9 is between 30° and 45°; the air holes 9 are arranged to be tilted downward to prevent external dust and other impurities from entering the guide rod 6 through the air holes 9, affecting the normal extension and retraction of the guide rod 6, and preventing interference between other components and the guide rod 6 due to the guide rod 6, thereby ensuring the stability of the elevator; similarly, if the downward tilt angle is too small, external dust and other impurities will easily enter the guide rod 6, and if the tilt angle is too large, dust and other impurities accumulated in the placement cavity 3 will easily enter the guide rod 6 due to the negative pressure suction force formed when the telescopic rod is extended, and 30°-45° is a more reasonable tilt range, which reduces the probability of dust and other impurities entering the guide rod 6 through the air holes 9.
[0034] A narrow throat 10 is provided in the middle of each air hole 9; the air hole 9 is wide at both ends and narrow in the middle. When the telescopic rod retracts, the gas in the guide rod 6 is compressed by the narrow throat 10 in the air hole 9, and the gas flow rate will increase, that is, the rate at which the gas flows out of the air hole 9 is increased, thereby cleaning impurities such as dust accumulated around the outside of the guide rod 6 and reducing the probability of dust entering the guide rod 6.
[0035] Each buffer spring 8 is provided with a plurality of buffer spacings, which provide buffer space for the buffer spring 8 to move, thereby preventing the buffer spring 8 from being continuously squeezed and causing greater wear and damage, thereby increasing the service life of the buffer spring 8 and the stability when used as a buffer.
[0036] A plurality of buffer pads 11 are provided on the bracket 4, and the bracket 4 is composed of a plurality of square rectangular tubes, and each buffer pad 11 is arranged above the corresponding square rectangular tube; when the bracket 4 retracts, the plurality of square rectangular tubes will squeeze each other. The buffer pads 11 are provided, and the thickness of the buffer pads 11 is relatively thin, which can play a certain buffering role without affecting the stability of direct retraction, that is, the service life of the bracket 4 is improved, and the stability of the elevator operation is guaranteed to a certain extent.
[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. A buffer device for a construction hoist, characterized in that: include: A base (1), wherein a plurality of moving wheels (2) are evenly distributed at the lower end of the base (1), a placement cavity (3) is opened at the top of the base (1), a bracket (4) is fixedly installed in the placement cavity (3), and the bracket (4) is a scissor-type bracket (4), the bracket (4) is composed of a plurality of square rectangular tubes and a connecting rod (12), the plurality of square rectangular tubes are staggered to form two symmetrical scissor-type frames, and a plurality of inflection points on the two scissor-type frames correspond to each other, and a plurality of connecting rods (12) are arranged on the corresponding inflection points, a platform (5) is provided at the top of the bracket (4), and a driving unit for driving the bracket (4) to extend and retract is provided on the bracket (4), a plurality of guide rods (6) are evenly distributed in the placement cavity (3), the other end of each guide rod (6) is connected to the bottom of the platform (5), and a plurality of guide rods (6) are evenly distributed around the bracket (4), and an auxiliary buffer component is provided on the guide rod (6).
2. A buffer device for a construction elevator according to claim 1, characterized in that: The driving unit comprises an oil cylinder (13), a cylinder (14) and a connecting seat (15); two cylinders (14) are arranged on the bracket, and the two cylinders (14) are respectively sleeved on the connecting rods (12) on both sides, and the two cylinders (14) are staggeredly distributed up and down; each of the cylinders (14) can rotate in a circle on the corresponding connecting rod (12); each of the cylinders (14) is provided with a connecting seat (15); and the two ends of the oil cylinder (13) are respectively connected to the two connecting seats (15).
3. A buffer device for a construction elevator according to claim 1, characterized in that: The auxiliary buffer assembly comprises a buffer block (7) and a buffer spring (8); a buffer block (7) is provided at the connection between each guide rod (6) and the platform (5); each guide rod (6) is a telescopic rod; and a buffer spring (8) is wound around one end of each guide rod (6) close to the platform (5).
4. A buffer device for a construction elevator according to claim 3, characterized in that: Each of the guide rods (6) is in the shape of a multi-faceted column.
5. A buffer device for a construction elevator according to claim 3, characterized in that: A plurality of air holes (9) are provided at the lower end of each guide rod (6), and the plurality of air holes (9) are arranged in a circular array.
6. A buffer device for a construction elevator according to claim 5, characterized in that: Each of the air holes (9) is arranged to be tilted downward, and the tilt angle of each air hole (9) is between 30° and 45°.
7. A buffer device for a construction elevator according to claim 6, characterized in that: A narrow throat (10) is provided in the middle of each of the air holes (9).
8. A buffer device for a construction elevator according to claim 3, characterized in that: Each buffer spring (8) is provided with a plurality of buffer spacings.
9. A buffer device for a construction elevator according to claim 1, characterized in that: The bracket (4) is provided with a plurality of buffer pads (11), and each buffer pad (11) is arranged above a corresponding square rectangular tube.