Elevator counterweight balancing device with noise reduction structure

Abstract

The invention discloses an elevator counterweight balancing device with a noise reduction structure, and relates to the technical field of elevator counterweight devices. Comprising guide rails which are symmetrically distributed, a mounting frame is arranged between the guide rails which are symmetrically distributed, the upper side of the mounting frame is fixedly connected with connecting frames which are symmetrically distributed, the mounting frame is detachably connected with connecting blocks which are symmetrically distributed in a linear array, and a sliding groove is formed in one side of each connecting block; friction blocks are slidably connected into the sliding grooves of the connecting blocks in a limited mode and are in friction fit with the adjacent guide rails. The friction blocks in the linear array make contact with the adjacent guide rails in sequence, so that the friction force between the guide rails and the connecting blocks is increased in a stepped mode, the descending speed of the mounting frame and other parts connected to the mounting frame is reduced, and the instantaneous impact generated when the mounting frame and the other parts connected to the mounting frame make contact with other structural bodies is reduced; and the mounting frame, other parts connected to the mounting frame and other structural bodies are prevented from being damaged due to collision.

Description

Technical Field

[0001] The invention relates to the technical field of elevator counterweight devices, and in particular to an elevator counterweight balancing device with a noise reduction structure. Background Art

[0002] The elevator counterweight device is an important component of the elevator traction system. It is mainly used to balance the weight of the elevator car, thereby reducing the power required by the elevator motor and improving the efficiency and stability of the elevator operation. The elevator counterweight device is connected to the elevator car through a traction sheave, and the traction sheave is driven up and down by the winch through the traction rope, thereby driving the counterweight device to move up and down along the guide rail. During the normal use of the elevator, if the traction rope of the counterweight device breaks due to excessive wear or other reasons, the counterweight device will lose traction and fall rapidly. At present, the elevator counterweight device is only provided with a protective structure at the bottom of the elevator shaft. However, if the counterweight device is located too high at this time, the counterweight device will cause a large impact on the protective structure when it falls and contacts with the protective structure. The impact acts in reverse on the counterweight device, causing the counterweight device to be damaged and deformed, affecting the subsequent use of the counterweight device. Summary of the invention

[0003] In order to overcome the shortcomings of the existing elevator counterweight device during rapid falling, the present invention provides an elevator counterweight balancing device with a noise reduction structure.

[0004] The technical solution is: an elevator counterweight balancing device with a noise reduction structure, comprising symmetrically distributed guide rails, a mounting frame is arranged between the symmetrically distributed guide rails, a symmetrically distributed connecting frame is fixedly connected to the upper side of the mounting frame, the symmetrically distributed connecting frames are slidably connected with a connecting plate, an elastic member is fixedly connected between the connecting plate and the mounting frame, a traction wheel is rotatably connected to the upper side of the connecting plate through a connecting seat, the mounting frame is detachably connected with a linear array and symmetrically distributed connecting block, the connecting block is slidably connected with the adjacent guide rails, the symmetrically distributed connecting blocks are jointly provided with a counterweight block, a slide groove is arranged on one side of the connecting block, a friction block is limitedly slidably connected in the slide groove of the connecting block, the friction block is frictionally matched with the adjacent guide rail, and an elastic member is fixedly connected between the friction block and the adjacent connecting block, the mounting frame is detachably connected with a fixing plate, the fixing plate is extruded and matched with the adjacent and symmetrically distributed connecting blocks and the counterweight block therebetween, the connecting block is provided with a mute sponge, and the symmetrically distributed mute pulleys are respectively extruded and matched with the adjacent guide rails.

[0005] As a further preferred embodiment, an inclined surface is provided on the side of the friction block away from the adjacent counterweight block, and the distance between the inclined surface on the friction block and the fixed plate decreases as the distance between the friction block and the adjacent counterweight block increases, and the height difference between the two sides of the inclined surface on the same friction block is one half of the height of the friction block.

[0006] As a further preferred solution, the distance between the opposite sides of the symmetrically distributed connecting blocks and the adjacent guide rails is smaller than the height of the adjacent friction blocks, and the connecting parts between the friction blocks and the adjacent elastic members are made of rigid material, and the remaining parts are made of elastic deformable material.

[0007] As a further preferred scheme, the symmetrically distributed connecting frames are all fixedly connected with a first liquid storage shell, the interior of the first liquid storage shell is slidably connected with a piston rod that passes through the adjacent connecting frame, an elastic member is fixedly connected between the piston rod and the adjacent first liquid storage shell, the first liquid storage shell is fixedly connected and connected with a connecting pipe, and the connecting pipe on the first liquid storage shell passes through the mounting frame and the fixing plate and is connected with a slide groove of the adjacent connecting block.

[0008] As a further preferred scheme, the connecting block is slidably connected with an extrusion plate that is extruded and matched with the adjacent friction block in the slide groove, an elastic member is fixedly connected between the extrusion plate and the adjacent connecting block, an extrusion rod is slidably connected with the slide groove of the connecting block, the extrusion rod is slidably matched with the adjacent connecting block, the extrusion plate is extruded and matched with the adjacent extrusion rod, and except the connecting block connected with the adjacent first liquid storage shell, the remaining connecting blocks are provided with a limiting groove connected with the slide groove thereon, a limiting pin is rotatably connected with the limiting groove of the connecting block, the limiting pin is limited and matched with the adjacent friction block, a torsion spring is fixedly connected between the limiting pin and the adjacent connecting block, and the limiting pin is extruded and matched with the adjacent extrusion rod.

[0009] As a further preferred solution, the elastic coefficient of the elastic member between the piston rod and the adjacent first liquid storage shell is greater than the elastic coefficient of the elastic member between the adjacent friction block and the adjacent connecting block, so as to enable the piston rod and the adjacent friction block to move synchronously and smoothly.

[0010] As a further preferred scheme, it also includes symmetrically distributed fixing frames, the symmetrically distributed fixing frames are all fixedly connected to the lower side of the mounting frame, the fixing frames are rotatably connected with intercepting blocks, a torsion spring is fixedly connected between the intercepting block and the adjacent fixing frames, the intercepting block is extruded and matched with the adjacent extrusion rods, the guide rail is provided with a linear array of positioning grooves, the lower side of the mounting frame is fixedly provided with symmetrically distributed elastic telescopic rods, the telescopic ends of the elastic telescopic rods are limitedly matched with the adjacent intercepting blocks, and the positioning grooves of the linear array are limitedly matched with the telescopic ends of the adjacent elastic telescopic rods.

[0011] As a further preferred solution, the height of the positioning groove is greater than the diameter of the telescopic end of the adjacent elastic telescopic rod and the minimum value of the height of the adjacent friction block, and less than the maximum value of the height of the adjacent friction block.

[0012] As a further preferred scheme, it also includes a second liquid storage shell, which is fixedly connected to the lower side of the symmetrically distributed guide rails through a connecting piece, and a moving block is slidably connected to the interior of the second liquid storage shell, and a moving rod is fixedly connected to the side of the moving block close to the mounting frame, and the moving rod is slidably connected to the second liquid storage shell, and a buffer column uniformly distributed circumferentially is fixedly connected to the interior of the second liquid storage shell, and the moving block is provided with circumferentially uniformly distributed through holes, and the circumferentially uniformly distributed buffer columns are respectively used to reduce the flow area of ​​adjacent through holes on the moving block, and the moving rod is fixedly connected to a load-bearing plate at one end away from the moving block, an elastic piece is provided between the load-bearing plate and the second liquid storage shell, the load-bearing plate is extruded and fitted with the mounting frame, and the symmetrically distributed guide rails are all slidably connected to the load-bearing plate.

[0013] As a further preferred solution, the buffer columns uniformly distributed circumferentially are all configured to be truncated cone-shaped, and the diameter of the buffer columns gradually decreases from bottom to top, while the heights of the buffer columns uniformly distributed circumferentially are not consistent.

[0014] The present invention has the following advantages: the friction blocks of the linear array contact the adjacent guide rails in turn, so that the friction between the guide rails and the connecting blocks is increased step by step, the descending speed of the mounting frame and other parts connected thereto is slowed down, the instantaneous impact of the mounting frame and other parts connected thereto when in contact with other structures is reduced, and the mounting frame and other parts connected thereto and other structures are prevented from being damaged by impact; at the same time, the noise generated by the connecting block during movement is absorbed by the silent sponge arranged on the connecting block, that is, the noise generated by the mounting frame and other parts connected thereto during movement is reduced.

[0015] When the friction block contacts the adjacent guide rail, the friction block is deformed by the squeezing force of the adjacent connecting block and the adjacent guide rail, so that the friction block is inserted between the adjacent connecting block and the adjacent guide rail, further increasing the friction between the guide rail and the adjacent connecting block, thereby further slowing down the falling speed of the mounting frame and other parts connected thereto.

[0016] Through the cooperation between the telescopic end of the elastic telescopic rod and the adjacent positioning groove, when the friction block cannot effectively decelerate the fixing frame, the mounting frame and other parts connected thereto are intercepted and locked, so that the mounting frame and other parts connected thereto cannot move downward any further, and the mounting frame and other parts connected thereto are fixed on the two guide rails, thereby ensuring the integrity of the mounting frame and other parts connected thereto. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the connecting frame and the connecting plate of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the first liquid storage shell and the piston rod of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the connecting block and the friction block of the present invention; Figure 5 It is a three-dimensional structural schematic diagram of the extrusion rod and the limit pin of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the positioning groove and the elastic telescopic rod of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the fixing frame and the intercepting block of the present invention; Figure 8 It is a three-dimensional structural cross-sectional view of the second liquid storage shell of the present invention.

[0018] Wherein: 1-guide rail, 2-mounting frame, 3-connecting frame, 4-connecting plate, 5-traction wheel, 6-connecting block, 7-friction block, 8-fixed plate, 9-first liquid storage shell, 10-piston rod, 11-extrusion plate, 12-extrusion rod, 13-limiting pin, 131-fixed frame, 14-interception block, 15-positioning groove, 16-elastic telescopic rod, 17-second liquid storage shell, 18-moving block, 19-moving rod, 20-buffer column, 21-load-bearing plate. DETAILED DESCRIPTION

[0019] The technical solution is further described below in conjunction with specific embodiments. It should be noted that the words indicating directions such as up, down, left, and right mentioned in this document are only for the positions of the structures shown in the corresponding drawings. The serial numbers assigned to the components in this document, such as first, second, etc., are only used to distinguish the objects described and do not have any order or technical meaning.

[0020] Embodiment 1: Considering that the existing elevator counterweight device will fall downward as a whole when the traction rope breaks, the counterweight device will generate a relatively large impact force when it contacts the protective device, which may easily cause the counterweight device and the gas structure in the elevator shaft to be damaged and deformed by the impact, the present invention proposes: An elevator counterweight balancing device with a noise reduction structure, such as Figure 1-Figure 5As shown, two groups of guide rails 1 are symmetrically distributed on the left and right, and a winch for winding a traction rope is commonly arranged on the upper side of the two groups of guide rails 1 (an existing device, not shown in the figure), each group of guide rails 1 is composed of a number of upper and lower linear arrays, and two adjacent guide rails 1 are connected by connecting members, wherein the specific number of guide rails 1 can be determined by the staff according to the height of the floor, and a mounting frame 2 is commonly arranged between the two groups of guide rails 1, and two connecting frames 3 symmetrically distributed on the left and right are fixedly connected to the upper side of the mounting frame 2, and the two connecting frames 3 are commonly slidably connected to a connecting plate 4, and an elastic member is fixedly connected between the connecting plate 4 and the mounting frame 2, and the elastic member is a tension spring, which is used to drive the connecting plate 4 to reset to the initial position, and the elastic member is in a stretched state at the initial position, and the connecting plate 4 The upper side is rotatably connected to a traction wheel 5 through a connecting seat, and the traction rope on the winch passes around the traction wheel 5. The mounting frame 2 is detachably connected to a plurality of connecting blocks 6 in an upper and lower linear array and symmetrically distributed on the left and right (the specific number of connecting blocks 6 can also be specifically selected by the staff), wherein two connecting blocks 6 located on the same plane are set as a group, which are the first group, the second group, and so on from top to bottom until the last group, and the connecting blocks 6 are slidably connected to the adjacent guide rails 1, and counterweight blocks are arranged between each group of connecting blocks 6, and slide grooves are arranged on the opposite sides of each group of connecting blocks 6, and friction blocks 7 are limitedly slidably connected in the slide grooves of the connecting blocks 6, wherein two friction blocks 7 located on the same plane are set as a group, which are the first group, the second group, and so on from top to bottom until the last group, and the friction blocks 7 and The adjacent guide rails 1 are frictionally matched, and the distance between the opposite sides of the symmetrically distributed connecting blocks 6 and the adjacent guide rails 1 is less than the height of the adjacent friction blocks 7, but greater than half of the height of the adjacent friction blocks 7, and the connecting portion of the friction block 7 and the adjacent elastic member is made of a rigid material, and the remaining portion is made of an elastic deformable material. When the friction block 7 extends out and contacts the adjacent guide rail 1, the friction block 7 is squeezed by the guide rail 1 and the adjacent connecting block 6 and deformed, and then inserted between the adjacent guide rail 1 and the adjacent connecting block 6, increasing the resistance of the connecting block 6 to move downward, and an elastic member is fixed between the friction block 7 and the adjacent connecting block 6, the elastic member is a spring, which is used to drive the friction block 7 to move in a direction away from the adjacent counterweight block, and the elastic member is in a compressed state at the initial position. The mounting frame 2 is detachably connected with a fixing plate 8. An inclined surface is provided on the side of the friction block 7 away from the adjacent counterweight. The distance between the inclined surface on the friction block 7 and the fixing plate 8 decreases as the distance between the friction block 7 and the adjacent counterweight increases, and the height difference between the two sides of the inclined surface on the same friction block 7 is half of the height of the friction block 7. The volume of each group of friction blocks 7 between the adjacent guide rails 1 and the adjacent connecting blocks 6 increases synchronously with the increase of the distance between each group of friction blocks 7, so that when each group of friction blocks 7 contacts the adjacent guide rails 1 respectively, each group of friction blocks 7 can be more smoothly inserted between the adjacent guide rails 1 and the adjacent connecting blocks 6. The fixing plate 8 is squeezed and matched with the first group of connecting blocks 6 and the counterweight between the two, and the first group of connecting blocks 6 and the counterweight between the two are squeezed by the fixing plate 8.Then squeeze the remaining groups of connection blocks 6 and the remaining counterweight blocks, fix the connection blocks 6 and counterweight blocks in the linear array, and the upper side of the fixing plate 8 is rotatably connected to two guide wheels symmetrically distributed on the left and right through a connecting piece, which is used to guide the up and down movement of the mounting frame 2 and other parts connected thereto. The connection blocks 6 in the upper and lower linear arrays and symmetrically distributed on the left and right are all provided with silent sponges to reduce the noise generated by the connection blocks 6 during movement.

[0021] like Figure 1-Figure 5As shown, the two connecting frames 3 are fixedly connected with the first liquid storage shell 9, and the first liquid storage shell 9 is filled with hydraulic oil. The interiors of the two first liquid storage shells 9 are slidably connected with piston rods 10 that penetrate the adjacent connecting frames 3. An elastic member is fixedly connected between the piston rod 10 and the adjacent first liquid storage shells 9. The elastic member is a tension spring, which is used to drive the adjacent piston rod 10 to move downward, and the elastic member is in a stretched state in the initial position. The first liquid storage shell 9 is fixedly connected and connected with a connecting pipe. The connection point between the first liquid storage shell 9 and the adjacent connecting pipe is located on the lower side of the adjacent piston rod 10. The connecting pipe on the first liquid storage shell 9 penetrates the mounting frame 2 and the fixing plate 8 and is connected with the slide groove of the adjacent connecting block 6. The slide groove of the uppermost connecting block 6 The connection with the adjacent connecting pipe is located between it and the adjacent friction block 7, so that the first group of friction blocks 7 are respectively moved by the extrusion of the hydraulic oil. The elastic coefficient of the elastic member between the piston rod 10 and the adjacent first liquid storage shell 9 is greater than the elastic coefficient of the elastic member between the adjacent friction block 7 and the adjacent connecting block 6, which is used to make the piston rod 10 and the adjacent friction block 7 move synchronously and smoothly. The sliding groove of the connecting block 6 is slidably connected with an extrusion plate 11 that is extruded and matched with the adjacent friction block 7, wherein two extrusion plates 11 located on the same plane are set as a group, which are the first group, the second group... until the last group from top to bottom, and the upper side of each group of extrusion plates 11 is provided with an inclined surface, and each group of extrusion plates 11 has an inclined surface on its upper side. The distance between the inclined surface and the fixed plate 8 decreases as the distance between the two increases. An elastic member is fixedly connected between the extrusion plate 11 and the adjacent connecting block 6. The elastic member is a spring, which is used to maintain the position of the extrusion plate 11 in contact with the adjacent friction block 7. An extrusion rod 12 is slidably connected in the slide groove of the connecting block 6. The extrusion rod 12 is in an inverted L shape. The extrusion rod 12 is located on the lower side of the adjacent extrusion plate 11. The extrusion plate 11 is extruded and matched with the horizontal part of the adjacent extrusion rod 12. The vertical part of the extrusion rod 12 is slidably matched with the connecting block 6 adjacent to the lower side. Except for the first group of connecting blocks 6, the remaining connecting blocks 6 are provided with a limiting groove connected to the upper slide groove thereof. The connecting block 6 is rotatably connected in the limiting groove There is a limit pin 13, which is limitedly matched with the adjacent friction block 7 to maintain the initial position of the friction block 7. A torsion spring is fixedly connected between the limit pin 13 and the adjacent connecting block 6. The limit pin 13 is squeezed and matched with the extrusion rod 12 on the upper adjacent connecting block 6. The extrusion rod 12 squeezes the adjacent limit pin 13 during the downward movement to rotate the limit pin 13, and at the same time, the torsion spring between the limit pin 13 and the adjacent connecting block 6 is twisted and stored. There is friction between the connecting block 6 and the adjacent friction block 7, and the friction between the two is less than the elastic force of the elastic member between the two, so that after the first group of friction blocks 7 move to the limit position, the second group of friction blocks 7 move respectively under the action of the adjacent springs.

[0022] During normal use of the elevator, the winch drives the traction wheel 5 to move up and down through the traction rope, and the traction wheel 5 drives the connecting plate 4 and other parts connected thereto to move up and down synchronously. At this time, the two tension springs between the connecting plate 4 and the mounting frame 2 are in a stretched state. When the elevator is stationary, the traction rope provides an upward pulling force to the traction wheel 5. At the same time, due to the gravity of the mounting frame 2 and other parts connected thereto, there is always a distance between the mounting frame 2 and the connecting plate 4, thereby making the two tension springs between the connecting plate 4 and the mounting frame 2 in a stretched state.

[0023] If the traction rope breaks during the operation of the elevator, the traction wheel 5 loses the upward pulling force, even if the connecting plate 4 and other parts connected thereto lose the upward pulling force synchronously, the connecting plate 4 and other parts connected thereto fall downward synchronously under the action of their own gravity. During the falling process, the tension spring between the connecting plate 4 and the mounting frame 2 first recovers from the stretched state to the contracted state, so that the connecting plate 4 drives the traction wheel 5 to move downward along the two connecting frames 3 relative to the mounting frame 2. At the same time, during the downward movement of the connecting plate 4, the extrusion pressure of the connecting plate 4 on the two piston rods 10 gradually decreases, so that the two piston rods 10 move downward together with the connecting plate 4 under the action of adjacent tension springs, and at the same time, the hydraulic oil in the adjacent first liquid storage shell 9 is squeezed into the slide groove of the adjacent connecting block 6 through the adjacent connecting pipe, that is, squeezed into the slide groove of the first group of connecting blocks 6.

[0024] In the process of the hydraulic oil flowing into the slide groove of the first group of connecting blocks 6, the first group of friction blocks 7 are respectively subjected to the extrusion force and move in the opposite direction. In the process of the movement of the friction blocks 7, the extrusion force of the friction blocks 7 on the adjacent springs is synchronously reduced, so that the springs between the friction blocks 7 and the adjacent connecting blocks 6 can gradually return to the relaxed state, until the opposite sides of the first group of friction blocks 7 are respectively in contact with the adjacent guide rails 1, and the first group of friction blocks 7 respectively increase the friction between the adjacent connecting blocks 6 and the adjacent guide rails 1, thereby reducing the descending speed of the mounting frame 2 and other parts connected thereto. At the same time, when the first group of friction blocks 7 are in contact with the guide rail 1, the friction between the guide rail 1 and the adjacent friction blocks 7 is relatively large, and the mounting frame 2 and other parts connected thereto fall faster, thereby causing The first group of friction blocks 7 synchronously generates a speed difference with the mounting frame 2, so that the opposite sides of the first group of friction blocks 7 are pulled upward relative to the mounting frame 2 by the adjacent guide rails 1, that is, the two guide rails 1 respectively pull out the uppermost adjacent friction blocks 7 with the help of friction force, and at the same time, the first group of friction blocks 7 are respectively squeezed by the adjacent guide rails 1 and the adjacent connecting blocks 6 to be deformed, thereby increasing the friction between the guide rails 1 and the adjacent connecting blocks 6, reducing the descending speed of the mounting frame 2 and other parts connected thereto, and at the same time, during the descent of the mounting frame 2 and other parts connected thereto, the silent sponge arranged on the connecting block 6 absorbs the noise generated by the connecting block 6 during the movement, that is, reducing the noise generated by the mounting frame 2 and other parts connected thereto during the movement.

[0025] In the above-mentioned process of pulling out the first group of friction blocks 7, the first group of friction blocks 7 are subjected to the downward squeezing force of the adjacent connecting blocks 6, so that the opposite sides of the first group of friction blocks 7 are synchronously bent upward, and then the opposite sides of the first group of friction blocks 7 are inserted between the adjacent connecting blocks 6 and the guide rail 1, further increasing the friction between the guide rail 1 and the adjacent connecting blocks 6, and then slowing down the falling speed of the mounting frame 2 and other parts connected thereto again, until the first group of friction blocks 7 are all moved to the limit position, the two piston rods 10 are synchronously moved downward to the limit position, and at the same time, the tension spring on the piston rod 10 returns to the contracted state, and the spring on the first group of friction blocks 7 returns to the relaxed state.

[0026] During the back movement of the first group of friction blocks 7, the first group of friction blocks 7 respectively squeeze the inclined surfaces on the adjacent extrusion plates 11, so that the extrusion plates 11 move downward due to the extrusion force, and compress the springs between them and the adjacent connecting blocks 6 to store force. At the same time, the first group of extrusion plates 11 squeeze the adjacent extrusion rods 12 respectively, so that the adjacent extrusion rods 12 move downward synchronously. During the downward movement, the extrusion rods 12 squeeze the first upper limit pin 13, so that the first upper limit pin 13 rotates (from top to bottom). During the rotation of the limit pin 13, the torsion spring between it and the adjacent connecting block 6 is twisted to store force until the first group of friction blocks 7 are all moved to the limit position. The first group of extrusion plates 11 and the first group of extrusion rods 12 are all moved downward to the limit position. At this time, the first group of limit pins 13 are all rotated from a horizontal state to a vertical state.

[0027] When the first group of limit pins 13 rotates to a vertical state, the first group of limit pins 13 lose contact with the adjacent friction blocks 7 respectively, thereby causing the second group of friction blocks 7 to move in opposite directions under the action of the adjacent springs. The movement process of the second group of friction blocks 7 can refer to the movement process of the first group of friction blocks 7, and no detailed description is given. When the opposite sides of the second group of friction blocks 7 contact the adjacent guide rails 1 respectively, the second group of friction blocks 7 again increase the friction between the mounting frame 2 and other parts connected thereto and the two guide rails 1, that is, the falling speed of the mounting frame 2 is slowed down again. At the same time, the movement processes of the remaining groups of friction blocks 7 can refer to the movement process of the first group of friction blocks 7. The friction blocks 7 of each group cooperate with each other to gradually increase the friction between the guide rails 1 and the connecting block 6, that is, gradually slow down the descending speed of the mounting frame 2 and other parts connected thereto, thereby reducing the instantaneous impact of the mounting frame 2 and other parts connected thereto when they contact with other structures, thereby preventing the mounting frame 2 and other parts connected thereto and other structures from being damaged by impact.

[0028] After the device stops falling, the staff will inspect and repair the device and repair it for subsequent continued use.

[0029] In this embodiment, the two lowermost connection blocks 6 are not provided with parts such as the extrusion plate 11, the extrusion rod 12 and the limit pin 13, which will be normally provided in the subsequent embodiments and will be the last group.

[0030] Embodiment 2: Based on embodiment 1, Figure 3 , Figure 6 and Figure 7As shown, it also includes two fixed frames 131 symmetrically distributed on the left and right, and the two fixed frames 131 are fixedly connected to the lower side of the mounting frame 2. The fixed frames 131 are rotatably connected with intercepting blocks 14, and torsion springs are fixedly connected between the intercepting blocks 14 and the adjacent fixed frames 131. The two intercepting blocks 14 are respectively squeezed and matched with the adjacent extrusion rods 12 in the last group. The two extrusion rods 12 in the last group respectively squeeze the adjacent intercepting blocks 14 during the downward movement, so that the intercepting blocks 14 rotate, and the torsion springs between the intercepting blocks 14 and the adjacent fixed frames 131 are twisted and stored. The guide rail 1 is provided with a linear array of positioning grooves 15. The lower side of the mounting frame 2 is fixedly connected with two elastic telescopic rods 16 symmetrically distributed on the left and right. In the initial position, the telescopic end of the elastic telescopic rod 16 is located in its fixed part, that is, In the initial position, the elastic telescopic rod 16 is in a force storage state, the telescopic end of the elastic telescopic rod 16 is limited and matched with the adjacent intercepting block 14, and the positioning grooves 15 of the linear array are limited and matched with the telescopic ends of the adjacent elastic telescopic rods 16. The height of the positioning groove 15 is greater than the diameter of the telescopic end of the adjacent elastic telescopic rod 16. The telescopic end of the elastic telescopic rod 16 can be extended into the adjacent positioning groove, thereby limiting and fixing the mounting frame 2. The height of the positioning groove 15 is greater than the minimum value of the height of the adjacent friction block 7 and less than the maximum value of the height of the adjacent friction block 7, so that the friction block 7 can be inserted into the adjacent positioning groove 15 on the adjacent guide rail 1 during the movement. The friction block 7 cooperates with the adjacent positioning groove 15 to buffer the falling speed of the mounting frame 2 and other parts connected thereto.

[0031] When the mounting frame 2 and other parts connected thereto are gradually decelerated as described above, if the falling speed of the mounting frame 2 and other parts connected thereto cannot be effectively slowed down after all the friction blocks 7 are in contact with the guide rail 1, the last group (the lowermost group) of extrusion rods 12 squeeze the adjacent interception blocks 14 respectively during the downward movement (the movement process of the last group of extrusion rods 12 will not be described in detail, and the specific process can refer to the movement process of the first group of extrusion rods 12 mentioned above), so that the two interception blocks 14 are gradually rotated due to the extrusion force, and at the same time, during the rotation of the interception block 14, the torsion spring between it and the adjacent fixing frame 131 is twisted by the interception block 14 to store force.

[0032] When the two ends of the two elastic telescopic rods 16 are in contact with the adjacent guide rails 1, the two elastic telescopic ends of the two elastic telescopic rods 16 stop moving synchronously. At the same time, in the process of the mounting frame 2 driving the other parts connected thereto to move downward, the contact positions of the two elastic telescopic ends of the two elastic telescopic rods 16 with the adjacent guide rails 1 also change accordingly. When the two ends of the two elastic telescopic rods 16 are respectively moved to the positions matching the adjacent positioning grooves 15, the two elastic telescopic ends of the two elastic telescopic rods 16 are respectively inserted into the adjacent positioning grooves 15, and the telescopic ends of the two elastic telescopic rods 16 cooperate with each other to intercept and lock the mounting frame 2 and the other parts connected thereto, so that the mounting frame 2 and the other parts connected thereto can no longer move downward, and the mounting frame 2 and the other parts connected thereto are fixed at a certain position of the two guide rails 1.

[0033] When the friction block 7 contacts the adjacent guide rail 1, the side of the friction block 7 away from the adjacent counterweight block can briefly enter the adjacent positioning groove 15, thereby buffering the falling speed of the mounting frame 2 and other parts connected thereto. When the device is successfully intercepted by the telescopic end of the elastic telescopic rod 16, the staff repairs the device and then puts it into use again.

[0034] Embodiment 3: Based on embodiment 2, Figure 1 and Figure 8As shown, it also includes a second liquid storage shell 17, the interior of the second liquid storage shell 17 is filled with hydraulic oil, the second liquid storage shell 17 is fixedly connected to the lower side of the two groups of guide rails 1 through a connecting piece, the interior of the second liquid storage shell 17 is slidably connected with a moving block 18, the upper side of the moving block 18 is fixedly connected with a moving rod 19, the moving rod 19 is slidably connected to the second liquid storage shell 17, the interior of the second liquid storage shell 17 is fixedly connected with a buffer column 20 evenly distributed in the circumferential direction, the moving block 18 is provided with through holes evenly distributed in the circumferential direction, the specific number of through holes on the moving block 18 is consistent with the specific number of buffer columns 20, the buffer columns 20 evenly distributed in the circumferential direction are all set to a truncated cone shape, and the diameter of the buffer column 20 gradually decreases from bottom to top, the buffer columns 20 evenly distributed in the circumferential direction are respectively used to reduce the flow area of ​​adjacent through holes on the moving block 18, and when the buffer column 20 is inserted into the adjacent through hole on the moving block 18, the flow of the through hole is changed. The through area increases the resistance of the moving block 18 to move downward. At the same time, the heights of the circumferentially evenly distributed buffer columns 20 are not consistent, so that the resistance of the moving block 18 gradually increases during the downward movement of the moving block 18. The circumferentially evenly distributed buffer columns 20 are arranged from high to low in the order of the first, the second... until the last one. The upper end of the moving rod 19 is fixedly connected to a load-bearing plate 21, and an elastic member is arranged between the load-bearing plate 21 and the second liquid storage shell 17. The elastic member is a spring, which is used to maintain the initial position of the load-bearing plate 21 and to reduce the speed at which the load-bearing plate 21 moves downward. The load-bearing plate 21 is squeezed and matched with the mounting frame 2, and the two guide rails 1 are slidably connected to the load-bearing plate 21. The load-bearing plate 21 moves downward along the two guide rails 1 under the squeezing force of the mounting frame 2, and compresses the adjacent springs to store force, and then the load-bearing plate 21 drives the moving rod 19 and the moving block 18 to move downward synchronously.

[0035] When the telescopic ends of the two elastic telescopic rods 16 are respectively inserted into the adjacent positioning grooves 15, if the mounting frame 2 and other parts connected thereto fall and generate an impact force on the telescopic ends of the two elastic telescopic rods 16 that is too large, causing the telescopic ends of the elastic telescopic rods 16 to be deformed or even broken, after the mounting frame 2 moves downward to contact the bearing plate 21, the mounting frame 2 drives the bearing plate 21 to move downward synchronously, and the bearing plate 21 drives the moving block 18 to move downward synchronously through the transmission of the moving rod 19, so that the hydraulic fluid in the second liquid storage shell 17 is The oil flows through the through hole on the moving block 18, and at the same time, the hydraulic oil in the second liquid storage shell 17 cannot flow quickly due to the influence of the diameter of the through hole on the moving block 18. During the downward movement of the load-bearing plate 21, the spring between it and the second liquid storage shell 17 is compressed and stored. The spring between the second liquid storage shell 17 and the load-bearing plate 21 and the moving block 18 limit the flow rate of the hydraulic oil in the second liquid storage shell 17 and together buffer the mounting frame 2 and other parts connected thereto, so as to slow down the falling speed of the mounting frame 2 and other parts connected thereto.

[0036] When the moving block 18 moves downward to the position where it cooperates with the first buffer column 20, the first buffer column 20 is inserted into the adjacent through hole on the moving block 18, reducing the flow area of ​​the adjacent through hole on the moving block 18, thereby increasing the resistance of the moving block 18 to move downward. When the moving block 18 moves downward to the position where it cooperates with the second buffer column 20, the first buffer column 20 is inserted into the adjacent through hole on the moving block 18, increasing the resistance of the moving block 18 to move downward again, that is, increasing the resistance of the mounting frame 2 and other parts connected thereto to move downward, and slowing down the speed of the mounting frame 2 and other parts connected thereto to move downward again. The working process of the remaining buffer columns 20 will no longer be described in detail. Just refer to the above. The circumferentially evenly distributed buffer columns 20 cooperate with the through holes on the moving block 18 to jointly buffer the impact force generated by the downward fall of the mounting frame 2 and other parts connected thereto, thereby avoiding the mounting frame 2 and other parts connected thereto from generating a large impact force after falling to the position in contact with the load-bearing plate 21, which may cause damage to the device.

[0037] Until the device stops falling downward, the staff will inspect and repair the device. After the inspection and repair of the device, the staff will fix the broken traction rope to the traction wheel 5 again, and use the winch to move the mounting frame 2 and other parts connected to it upward to the working position. In the process of the mounting frame 2 moving upward, the squeezing pressure of the mounting frame 2 on the load-bearing plate 21 gradually decreases, thereby gradually reducing the squeezing pressure of the load-bearing plate 21 on the spring on its lower side, and the load-bearing plate 21, under the action of the spring on its lower side, drives the moving rod 19 and the moving block 18 to slowly return to the initial position upward.

[0038] The technical principles of the embodiments of the present invention are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the embodiments of the present invention and cannot be interpreted in any way as limiting the protection scope of the embodiments of the present invention. Based on the explanations herein, those skilled in the art can think of other specific implementation methods of the embodiments of the present invention without creative work, and these methods will fall within the protection scope of the embodiments of the present invention.

Claims

1. An elevator counterweight balancing device with a noise reduction structure, comprising symmetrically distributed guide rails (1), a mounting frame (2) being arranged between the symmetrically distributed guide rails (1), characterized in that: The invention also comprises symmetrically distributed connecting frames (3), the symmetrically distributed connecting frames (3) are all fixedly connected to the upper side of the mounting frame (2), the symmetrically distributed connecting frames (3) are slidably connected to a connecting plate (4), an elastic member is fixedly connected between the connecting plate (4) and the mounting frame (2), the upper side of the connecting plate (4) is rotatably connected to a traction wheel (5) via a connecting seat, the mounting frame (2) is detachably connected to a linear array of symmetrically distributed connecting blocks (6), the connecting blocks (6) are slidably connected to the adjacent guide rails (1), and the symmetrically distributed connecting blocks (6) are jointly provided with a counterweight. A block, a slide groove is provided on one side of the connecting block (6), a friction block (7) is limitedly slidably connected in the slide groove of the connecting block (6), the friction block (7) is frictionally matched with the adjacent guide rail (1), and an elastic member is fixedly connected between the friction block (7) and the adjacent connecting block (6), the mounting frame (2) is detachably connected with a fixing plate (8), the fixing plate (8) is squeezed and matched with the adjacent and symmetrically distributed connecting blocks (6) and the counterweight block therebetween, the connecting block (6) is provided with a silent sponge, and the symmetrically distributed silent pulleys are respectively squeezed and matched with the adjacent guide rails (1).

2. The elevator counterweight balancing device with a noise reduction structure according to claim 1, characterized in that: An inclined surface is provided on a side of the friction block (7) away from the adjacent counterweight block, the distance between the inclined surface on the friction block (7) and the fixed plate (8) decreases as the distance between the friction block (7) and the adjacent counterweight block increases, and the height difference between the two sides of the inclined surface on the same friction block (7) is half the height of the friction block (7).

3. The elevator counterweight balancing device with a noise reduction structure according to claim 2, characterized in that: The distance between the opposite sides of the symmetrically distributed connecting blocks (6) and the adjacent guide rails (1) is smaller than the height of the adjacent friction blocks (7), and the connecting portion between the friction blocks (7) and the adjacent elastic members is made of a rigid material, while the remaining portion is made of an elastic deformable material.

4. The elevator counterweight balancing device with a noise reduction structure according to claim 1, characterized in that: The symmetrically distributed connecting frames (3) are all fixedly connected to a first liquid storage shell (9), the interior of the first liquid storage shell (9) is slidably connected to a piston rod (10) that passes through an adjacent connecting frame (3), an elastic member is fixedly connected between the piston rod (10) and the adjacent first liquid storage shell (9), the first liquid storage shell (9) is fixedly connected to and communicated with a connecting pipe, and the connecting pipe on the first liquid storage shell (9) passes through the mounting frame (2) and the fixing plate (8) and is connected to a slide groove of the adjacent connecting block (6).

5. The elevator counterweight balancing device with a noise reduction structure according to claim 4, characterized in that: An extrusion plate (11) is slidably connected in the slide groove of the connecting block (6) and is extruded and matched with the adjacent friction block (7). An elastic member is fixedly connected between the extrusion plate (11) and the adjacent connecting block (6). An extrusion rod (12) is slidably connected in the slide groove of the connecting block (6). The extrusion rod (12) is slidably matched with the adjacent connecting block (6). The extrusion plate (11) is extruded and matched with the adjacent extrusion rod (12). Except for the connecting block (6) connected to the adjacent first liquid storage shell (9), the remaining connecting blocks (6) are provided with a limiting groove connected to the slide groove thereon. A limiting pin (13) is rotatably connected in the limiting groove of the connecting block (6). The limiting pin (13) is limitedly matched with the adjacent friction block (7). A torsion spring is fixedly connected between the limiting pin (13) and the adjacent connecting block (6). The limiting pin (13) is extruded and matched with the adjacent extrusion rod (12).

6. The elevator counterweight balancing device with a noise reduction structure according to claim 5, characterized in that: The elastic coefficient of the elastic member between the piston rod (10) and the adjacent first liquid storage shell (9) is greater than the elastic coefficient of the elastic member between the adjacent friction block (7) and the adjacent connection block (6), so as to enable the piston rod (10) and the adjacent friction block (7) to move synchronously and smoothly.

7. The elevator counterweight balancing device with a noise reduction structure according to claim 5, characterized in that: The invention also comprises symmetrically distributed fixing frames (131), the symmetrically distributed fixing frames (131) are all fixedly connected to the lower side of the mounting frame (2), the fixing frames (131) are rotatably connected with intercepting blocks (14), a torsion spring is fixedly connected between the intercepting blocks (14) and the adjacent fixing frames (131), the intercepting blocks (14) are squeezed and matched with the adjacent extrusion rods (12), the guide rail (1) is provided with a linear array of positioning grooves (15), the lower side of the mounting frame (2) is fixedly connected with symmetrically distributed elastic telescopic rods (16), the telescopic ends of the elastic telescopic rods (16) are limitedly matched with the adjacent intercepting blocks (14), and the linear array of positioning grooves (15) are limitedly matched with the telescopic ends of the adjacent elastic telescopic rods (16).

8. The elevator counterweight balancing device with a noise reduction structure according to claim 7, characterized in that: The height of the positioning groove (15) is greater than the minimum value of the diameter of the telescopic end of the adjacent elastic telescopic rod (16) and the height of the adjacent friction block (7), and is less than the maximum value of the height of the adjacent friction block (7).

9. The elevator counterweight balancing device with a noise reduction structure according to claim 7, characterized in that: The second liquid storage shell (17) is fixedly connected to the lower side of the symmetrically distributed guide rail (1) through a connecting piece, a moving block (18) is slidably connected inside the second liquid storage shell (17), a moving rod (19) is fixedly connected to the side of the moving block (18) close to the mounting frame (2), the moving rod (19) is slidably connected to the second liquid storage shell (17), and buffer columns (20) uniformly distributed in the circumferential direction are fixedly connected inside the second liquid storage shell (17). 8) is provided with circumferentially evenly distributed through holes, the circumferentially evenly distributed buffer columns (20) are respectively used to reduce the flow area of ​​adjacent through holes on the moving block (18), one end of the moving rod (19) away from the moving block (18) is fixedly connected to a load-bearing plate (21), an elastic member is provided between the load-bearing plate (21) and the second liquid storage shell (17), the load-bearing plate (21) is pressed and matched with the mounting frame (2), and the symmetrically distributed guide rails (1) are all slidably connected to the load-bearing plate (21).

10. An elevator counterweight balancing device with a noise reduction structure according to claim 9, characterized in that: The buffer columns (20) uniformly distributed in the circumferential direction are all arranged in a truncated cone shape, and the diameter of the buffer columns (20) gradually decreases from bottom to top, while the heights of the buffer columns (20) uniformly distributed in the circumferential direction are not consistent.

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