An elevator guide rail clamping device

Abstract

This utility model discloses an elevator guide rail clamping device, which includes: a mounting base, a clamping mechanism, and a driving mechanism; the clamping mechanism has two wedges; the driving mechanism includes: a first rotating rod, a connecting block, and a connecting plate, one end of the first connecting rod is connected to the connecting plate, and the other end of the first connecting rod is connected to the bottom of the corresponding wedge; when the first rotating rod rotates forward, it pushes the connecting plate to move towards the wedge, thereby pushing the two wedges closer together to clamp the elevator rail; when the first rotating rod rotates in the reverse direction, it pushes the connecting plate to move away from the wedge, and the wedges move away from each other due to their own weight to release the elevator rail. This utility model, by setting up a driving mechanism and a clamping mechanism, where the driving mechanism drives the clamping mechanism to clamp the elevator rail or the clamping mechanism releases the elevator rail due to its own weight, reduces the number of mechanisms driving the movement of the wedges in the corresponding clamping mechanism, reducing the weight of the structure while maintaining the performance of the clamping device.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, and in particular to an elevator guide rail clamping device. Background Technology

[0002] During elevator installation or dismantling, construction workers need to use elevator guide rail clamping devices to help the work platform move up and down in the shaft and stop at the designated position so that workers can carry out their work in the corresponding position.

[0003] Most existing elevator guide rail clamping devices use motor-driven or cylinder-driven wedges to clamp the elevator guide rail and drive the wedges away from the guide rail to release it. However, this structure is complex internally, and the internal mechanical mechanism is more prone to problems such as friction, wear, and gaps between parts, leading to unstable performance of the mechanical mechanism. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art. This utility model provides an elevator guide rail clamping device. By setting a driving mechanism and a clamping mechanism, the driving mechanism drives the clamping mechanism to clamp the elevator rail. The clamping mechanism releases the elevator rail due to its own weight. This reduces the mechanism that drives the wedge block in the corresponding clamping mechanism to move, thereby reducing the weight of the structure while maintaining the performance of the clamping device.

[0005] Accordingly, this utility model proposes an elevator guide rail clamping device, which includes: a mounting base, a clamping mechanism, and a driving mechanism connected to the clamping mechanism;

[0006] The clamping mechanism has two wedges for clamping the elevator guide rail, and the bottoms of the two wedges are connected to the drive mechanism based on the first connecting rod.

[0007] The driving mechanism includes: a first rotating rod, a plurality of connecting blocks and connecting plates disposed on the first rotating rod, the first rotating rod being rotatably mounted on the mounting base, the connecting plates being mounted on the bottom of the wedge, one end of the first connecting rod being connected to the connecting plate, and the other end of the first connecting rod being connected to the bottom of the corresponding wedge;

[0008] When the first rotating rod rotates in the forward direction, it drives the multiple connecting blocks to rotate, pushes the connecting plate to move toward the wedge block, and then pushes the two wedge blocks to move closer to each other to clamp the elevator track.

[0009] When the first rotating rod rotates in the opposite direction, it drives the multiple connecting blocks to rotate, pushing the connecting plate to move away from the wedge block. The wedge blocks move away from each other due to their own weight, thus releasing the elevator track.

[0010] Preferably, an L-shaped rod is provided on one end of the first rotating rod, and the first rotating rod is fixedly connected to the L-shaped rod based on the sleeve;

[0011] The L-shaped rod rotates with its connection point with the first rotating rod as the center, causing the first rotating rod to rotate around its axis.

[0012] Preferably, the surface of the sleeve extends outward to form a limiting rod, and the sleeve is provided with a torsion spring. One end of the torsion spring is engaged with the limiting rod, and the other end of the torsion spring is inserted into the L-shaped connecting rod.

[0013] Preferably, the clamping mechanism further includes: a number of limiting blocks equal to the number of wedges, each of the limiting blocks having a plurality of rollers that abut against the sides of the wedges.

[0014] Preferably, the plurality of rollers are embedded in the limiting block, and the distance between two adjacent rollers is equal.

[0015] Preferably, one sidewall of the limiting block extends outward to form a limiting boss, and the limiting boss is engaged with the limiting groove provided on the corresponding wedge block.

[0016] Preferably, a safety device is provided at the top of the clamping mechanism. The safety device is connected to the wedge in the clamping mechanism based on the second connecting rod, and the safety device is moved by the drive of the wedge.

[0017] Preferably, a limiting nut is provided on any of the second connecting rods, and the bottom of the limiting nut abuts against the top of the corresponding wedge.

[0018] Preferably, the safety device includes: a fixed frame and two symmetrically distributed movable plates;

[0019] A fixed rod is provided on one side of any of the movable plates, the movable rod is movably inserted into the fixed frame based on the fixed rod, and a first spring is sleeved on the fixed rod.

[0020] Preferably, one end of any of the first connecting rods is inserted into the corresponding wedge, and the other end of the first connecting rod is provided with a plurality of fixing nuts. The plurality of fixing nuts clamp one side of the connecting plate, so that the connecting plate is fixedly connected to the corresponding first connecting rod.

[0021] The beneficial effects of this utility model are:

[0022] This invention incorporates a first rotating rod, a connecting block, a connecting plate, and a clamping mechanism within an elevator guide rail clamping device. When the first rotating rod rotates forward, the first end of the connecting block abuts against the bottom of the connecting plate. The connecting block lifts the connecting plate and moves it towards the wedge, thereby pushing the two wedges closer together to clamp the elevator rail. Conversely, when the first rotating rod rotates in the opposite direction, and the first end of the connecting block is not in contact with the bottom of the connecting plate, the connecting plate moves away from the wedge due to its own weight. Finally, the bottom of the connecting plate contacts the first end of the connecting block, stopping the connecting plate in the corresponding position. This structure reduces the number of mechanisms driving the wedges in the corresponding clamping mechanism, reducing the weight of the structure while maintaining the performance of the clamping device. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a first structural schematic diagram of the elevator guide rail clamping device in this utility model;

[0025] Figure 2 This is a schematic diagram of the second structure of the elevator guide rail clamping device in this utility model;

[0026] Figure 3 This is a cross-sectional view of the elevator guide rail clamping device in this utility model;

[0027] Figure 4 This is a schematic diagram of the first structure of the elevator guide rail clamping device in the clamping state in this utility model;

[0028] Figure 5 This is a schematic diagram of the first structure of the elevator guide rail clamping device in the released state in this utility model;

[0029] Figure 6 yes Figure 5 Enlarged view of point A.

[0030] In the attached diagram: 1. Mounting base; 2. Clamping mechanism; 21. Wedge block; 211. Limiting groove; 22. Limiting block; 221. Limiting boss; 23. Roller; 3. Drive mechanism; 31. First rotating rod; 32. Connecting block; 33. Connecting plate; 34. First connecting rod; 341. Fixing nut; 4. L-shaped rod; 5. Sleeve; 51. Limiting rod; 6. Torsion spring; 7. Safety device; 71. Fixing frame; 72. Moving plate; 73. Fixing rod; 74. First spring; 8. Second connecting rod; 81. Limiting nut. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0032] Figure 1 This is a schematic diagram of the first structure of the elevator guide rail clamping device in this utility model. Figure 2 This is a schematic diagram of the second structure of the elevator guide rail clamping device in this utility model. Figure 3 This is a cross-sectional view of the elevator guide rail clamping device of this utility model. Figure 4 This is a schematic diagram of the first structure of the elevator guide rail clamping device in the clamping state in this utility model. Figure 5 This is a schematic diagram of the first structure of the elevator guide rail clamping device in the released state in this utility model. Figure 6 yes Figure 5The enlarged view at point A shows that the clamping device includes: a mounting base 1, a clamping mechanism 2, and a driving mechanism 3 connected to the clamping mechanism 2. The clamping mechanism 2 is mounted on the mounting base 1, and the driving mechanism 3 is disposed within the mounting base 1 and located at the bottom of the clamping mechanism 2. When the driving mechanism 3 abuts against the bottom of the clamping mechanism 2, it exerts a force on the bottom of the clamping mechanism 2, causing the clamping mechanism 2 to clamp the elevator rail. When the driving mechanism 3 is not in contact with the bottom of the clamping mechanism 2, it exerts no force on the bottom of the clamping mechanism 2, and the clamping mechanism 2 releases the elevator rail. The clamping mechanism 2 has two wedges 21 for clamping the elevator guide rail, and the bottoms of the two wedges 21 are connected to the driving mechanism 3 based on a first connecting rod 34. The driving mechanism 3 includes: a first... The system comprises a rotating rod 31, multiple connecting blocks 32 and connecting plates 33 disposed on the first rotating rod 31, the first rotating rod 31 being rotatably mounted on the mounting base 1, the connecting plates 33 being mounted on the bottom of the wedge 21, one end of the first connecting rod 34 being connected to the connecting plate 33, and the other end of the first connecting rod 34 being connected to the bottom of the corresponding wedge 21; when the first rotating rod 31 rotates in the forward direction, it drives the multiple connecting blocks 32 to rotate, pushing the connecting plates 33 to move towards the wedge 21, thereby pushing the two wedges 21 closer together to clamp the elevator track; when the first rotating rod 31 rotates in the reverse direction, it drives the multiple connecting blocks 32 to rotate, pushing the connecting plates 33 to move away from the wedges 21, and the wedges 21, under their own weight, move away from each other to release the elevator track. In this embodiment, the two wedges 21 used to clamp the elevator guide rail are symmetrically distributed, that is, the two wedges 21 are symmetrically distributed with the center line of the mounting base 1 as a reference, and the corresponding elevator rail is locked at the corresponding position of the mounting base 1, so that the two wedges 21 are also symmetrically distributed with the elevator rail as a reference. One end of the first connecting rod 34 is fixedly connected to the connecting rod, and the other end of the first connecting rod 34 is movably inserted into the wedge 21. The wedge 21 has a connecting hole that can accommodate the first connecting rod 34. The other end of the first connecting rod 34 is inserted into the connecting hole of the wedge 21, which can ensure that the wedge 21 moves along the surface of the first connecting rod 34 and avoid the wedge 21 moving along a non-preset path, which helps to ensure the accuracy of the use of the elevator guide rail clamping device.Two connecting blocks 32 are provided on the first rotating rod 31. The ends of the two connecting blocks 32 are fixedly connected to the first connecting rod 34, and the heads of the two connecting blocks 32 are adapted to connect with the bottom of the connecting plate 33. When the heads of the connecting blocks 32 abut against the bottom of the connecting plate 33, the connecting blocks 32 can lift the connecting plate 33 and move it toward the wedge 21. When the heads of the connecting blocks 32 are not in contact with the bottom of the connecting plate 33, the connecting plate 33 moves away from the wedge 21 under the influence of its own gravity. Finally, the bottom of the connecting plate 33 contacts the heads of the connecting blocks 32, so that the connecting plate 33 stops in the corresponding position. This structure reduces the mechanism for driving the corresponding wedge 21 to move, and maintains the performance of the clamping device while reducing the structure.

[0033] When the first rotating rod 31 rotates in the forward direction, it drives the connecting block 32 to rotate, causing the connecting block 32 to abut against the bottom of the connecting plate 33 and lift the connecting plate 33 so that the connecting plate 33 moves toward the wedge block 21. The connecting plate 33 moves toward the wedge block 21, thereby pushing the two wedge blocks 21 closer to each other to clamp the elevator track, so that the clamping device is converted into a clamping state. When the first rotating rod 31 rotates in the opposite direction, it drives the two connecting blocks 32 to rotate, causing the head end of the connecting block 32 to move away from the connecting plate 33, and the connecting block 32 to have no contact with the connecting plate 33. The connecting plate 33 moves away from the wedge block 21 under the influence of its own gravity. Finally, the bottom of the connecting plate 33 contacts the head end of the connecting block 32, causing the connecting plate 33 to stop in the corresponding position. Then, the two wedge blocks 21 also move away from each other in the direction of the connecting plate 33 under the influence of their own gravity, so as to release the elevator track and convert the clamping device into the released state.

[0034] It should be noted that the two connecting blocks 32 are symmetrically distributed with the center line of the mounting base 1 as a reference, and the two connecting blocks 32 are respectively located on both sides of the corresponding elevator rail. They simultaneously output force to the connecting plate 33 from two directions, which avoids the connecting plate 33 from tilting during use. This prevents the connecting plate 33 from pushing the wedge 21, resulting in one wedge 21 abutting against the elevator rail while the other wedge 21 does not. This facilitates the connecting plate 33 pushing the two wedges 21 to simultaneously abut against the corresponding elevator rail, so that the elevator rail clamping device can clamp the corresponding elevator rail.

[0035] Furthermore, an L-shaped rod 4 is provided at one end of the first rotating rod 31, and the first rotating rod 31 is fixedly connected to the L-shaped rod 4 based on the sleeve 5. When the L-shaped rod 4 is subjected to force, it rotates with its connection point with the first rotating rod 31 as the center, causing the first rotating rod 31 to rotate around its axis. The right-angle design of the L-shaped rod 4 allows it to more effectively disperse stress when subjected to pressure and tension, thereby improving the overall load-bearing capacity and preventing the L-shaped rod 4 from breaking when driven by external force, which helps to ensure the stability of the elevator guide rail clamping device.

[0036] It should be noted that the L-shaped rod 4 has a connecting groove and a connecting hole. The connecting hole is located at the midpoint of the L-shaped rod 4, and the connecting groove is located at one end of the L-shaped rod 4. The first rotating rod 31 is inserted into the connecting hole so that the first rotating rod 31 is fixedly connected to the L-shaped connecting rod. That is, when the L-shaped rod 4 is subjected to force and rotates, it can drive the first rotating rod 31 to rotate around the axis of the first rotating rod 31, thereby driving the connecting block 32 to rotate.

[0037] Furthermore, a limiting rod 51 extends outward from the surface of the sleeve 5, and a torsion spring 6 is provided on the sleeve 5. One end of the torsion spring 6 is engaged with the limiting rod 51, and the other end of the torsion spring 6 is inserted into the L-shaped connecting rod. When an external force is applied to the L-shaped connecting rod, causing it to rotate around the central axis of the sleeve 5, the L-shaped connecting rod drives one end of the torsion spring 6 to rotate, while the other end of the torsion spring 6 remains relatively stationary due to being engaged with the limiting rod 51 of the sleeve 5. This causes the torsion spring 6 to undergo torsional deformation, generating an elastic torque. When the external force disappears, the torsion spring 6 returns to its original shape under the action of the elastic torque, driving the L-shaped connecting rod to rotate in the opposite direction and return to its initial position, thus realizing the elastic reset function. At the same time, the engaging structure between the limiting rod 51 and the torsion spring 6, as well as the connection method between the L-shaped connecting rod and the torsion spring 6, prevent relative displacement or disengagement between the components during rotation, ensuring the stability of the structure.

[0038] Furthermore, the clamping mechanism 2 also includes: a number of limiting blocks 22 equal to the number of wedges 21, each of the limiting blocks 22 having multiple rollers 23 abutting against the sides of the wedges 21. In this embodiment, the clamping mechanism 2 also includes two limiting blocks 22, one of which is connected to a corresponding wedge 21. The limiting block 22 also has four rollers 23 abutting against the sides of the wedges 21. The rollers 23 are used to reduce the frictional force of the movement of the wedges 21, significantly reducing the frictional resistance between the wedges 21 and the limiting blocks 22, reducing component wear, and extending the service life of the clamping mechanism 2. During movement, the rollers 23 on the limiting blocks 22 remain in contact with the sides of the wedges 21. The rollers 23 roll under the action of the sides of the wedges 21, converting the sliding friction in the traditional clamping mechanism 2 into rolling friction, greatly reducing frictional resistance.

[0039] Furthermore, multiple rollers 23 are embedded within the limiting block 22, and the distance between any two adjacent rollers 23 is equal. In this embodiment, the equal distance between any two adjacent rollers 23 ensures that the supporting force on the wedge block 21 is evenly distributed during movement, preventing swaying or offset caused by uneven support, thereby ensuring the smooth movement of the wedge block 21. Simultaneously, the equal spacing between the rollers 23 ensures that the load borne by each roller 23 is relatively balanced, reducing wear caused by local overload. Furthermore, the smooth transmission also reduces friction between the rollers 23 and the wedge block 21, further reducing the risk of wear and extending the service life of the rollers 23.

[0040] Furthermore, one sidewall of the limiting block 22 extends outward to form a limiting boss 221, which engages with a limiting groove 211 on the corresponding wedge 21. The limiting boss 221 is inserted into the corresponding wedge 21. When the wedge 21 moves due to its own weight, the limiting boss 221 and the limiting groove 211 constrain the direction of movement of the wedge 21, ensuring that the wedge 21 can move along a specified direction. This prevents the wedge 21 from moving along a non-preset path, causing offset or disengagement, and helps stabilize the clamping force on the wedge 21, thus improving the stability of the clamping device.

[0041] Furthermore, a safety device 7 is provided at the top of the clamping mechanism 2. The safety device 7 is connected to the wedge 21 in the clamping mechanism 2 based on the second connecting rod 8, and the safety device 7 is driven by the wedge 21 to move. The safety device 7 is used to clamp the elevator guide rail in time when a malfunction occurs, so that the elevator stops in a short time and reduces the risk of elevator falling. The safety device 7 is driven by the wedge 21 and moves together with the wedge 21, ensuring that the wedge 21, the safety device 7 and the mounting base 1 have a speed difference in the event of a falling accident. This allows the wedge 21 and the safety device 7 to repeatedly contact the elevator guide rail, increasing the friction between the safety device 7 and the elevator rail to slow down the descent speed, and allowing the safety device 7 and the wedge 21 to clamp the corresponding elevator guide rail, ultimately stopping the clamping device.

[0042] Furthermore, a limiting nut 81 is provided on any of the second connecting rods 8, and the bottom of the limiting nut 81 abuts against the top of the corresponding wedge 21. In this embodiment, a limiting nut 81 is provided in the middle area of ​​any of the second connecting rods 8. The limiting nut 81 is used to limit the movement range of the wedge 21. When the top of the wedge 21 abuts against the bottom of the limiting nut 81, the limiting boss 221 remains engaged with the limiting groove 211, preventing the wedge 21 from moving to abut against the limiting nut 81 without contact between the wedge 21 and the fixing block, which would cause the wedge 21 to fall out of the clamping device. This helps the wedge 21 to remain installed in the fixing block, ensuring that the wedge 21 and the safety device 7 can repeatedly contact the elevator guide rail, increasing the friction between the safety device 7 and the elevator rail to slow down the descent speed, and allowing the safety device 7 and the wedge 21 to clamp the corresponding elevator guide rail, ultimately stopping the clamping device.

[0043] Furthermore, the safety device 7 includes a fixed frame 71 and two symmetrically distributed movable plates 72; a fixed rod 73 is provided on one side of each movable plate 72, and the movable plate 72 is movably inserted into the fixed frame 71 based on the fixed rod 73, and a first spring 74 is sleeved on the fixed rod 73. The two symmetrically distributed movable plates 72 are respectively arranged on both sides of the fixed frame 71. In the event of a fall accident, the wedge block 21 and the movable plate 72 repeatedly contact the corresponding elevator guide rail, thereby increasing the friction between the clamping device and the elevator guide rail, thus stopping the fall. During this repeated contact process, a speed difference occurs between the wedge 21, the safety device 7, and the mounting base 1. The mounting base 1 falls faster than the wedge 21 and the safety device 7. Consequently, the fixing block exerts a force on the wedge 21, causing the two wedges 21 to tend to move closer to each other. When the two wedges 21 move closer to each other, they clamp the elevator guide rail, thereby increasing the friction between the clamping device and the elevator guide rail, thus stopping the falling elevator.

[0044] Furthermore, one end of any of the first connecting rods 34 is inserted into the corresponding wedge block 21, and the other end of the first connecting rod 34 is provided with a plurality of fixing nuts 341. The plurality of fixing nuts 341 clamp one side of the connecting plate 33, so that the connecting plate 33 is fixedly connected to the corresponding first connecting rod 34. In this embodiment, two fixing nuts 341 are provided on the other end of the first connecting rod 34. The two fixing nuts 341 clamp one side of the connecting plate 33, that is, there is a certain gap between the two fixing nuts 341. This gap is used to accommodate the connecting plate 33, and when the connecting plate 33 is located in this gap, the opposite ends of the two fixing nuts 341 clamp the connecting plate 33, ensuring that the corresponding first connecting rod 34 can move when the connecting plate 33 moves.

[0045] In summary, this utility model, by setting a first rotating rod, a connecting block, a connecting plate, and a clamping mechanism, allows the first rotating rod to rotate in the forward direction, causing the first end of the connecting block to abut against the bottom of the connecting plate. The connecting block can then lift the connecting plate and move it towards the wedge, thereby pushing the two wedges closer together to clamp the elevator track. Conversely, when the first rotating rod rotates in the reverse direction, and the first end of the connecting block is not in contact with the bottom of the connecting plate, the connecting plate moves away from the wedge due to its own weight. Finally, the bottom of the connecting plate contacts the first end of the connecting block, stopping the connecting plate in the corresponding position. This structure reduces the mechanism for driving the corresponding wedges to move, reducing the structure while maintaining the performance of the clamping device. Simplifying the mechanical structure can reduce inertial mass and improve dynamic response speed.

[0046] Furthermore, the elevator guide rail clamping device provided by the embodiments of this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. An elevator guide rail clamping device, characterized in that, The clamping device includes: a mounting base, a clamping mechanism, and a drive mechanism connected to the clamping mechanism; The clamping mechanism has two wedges for clamping the elevator guide rail, and the bottoms of the two wedges are connected to the drive mechanism based on the first connecting rod. The driving mechanism includes: a first rotating rod, a plurality of connecting blocks and connecting plates disposed on the first rotating rod, the first rotating rod being rotatably mounted on the mounting base, the connecting plates being mounted on the bottom of the wedge, one end of the first connecting rod being connected to the connecting plate, and the other end of the first connecting rod being connected to the bottom of the corresponding wedge; When the first rotating rod rotates in the forward direction, it drives the multiple connecting blocks to rotate, pushes the connecting plate to move toward the wedge block, and then pushes the two wedge blocks to move closer to each other to clamp the elevator track. When the first rotating rod rotates in the opposite direction, it drives the multiple connecting blocks to rotate, pushing the connecting plate to move away from the wedge block. The wedge blocks move away from each other due to their own weight, thus releasing the elevator track.

2. The elevator guide rail clamping device according to claim 1, characterized in that, An L-shaped rod is provided on one end of the first rotating rod, and the first rotating rod is fixedly connected to the L-shaped rod based on the sleeve; The L-shaped rod rotates with its connection point with the first rotating rod as the center, causing the first rotating rod to rotate around its axis.

3. The elevator guide rail clamping device according to claim 2, characterized in that, The surface of the sleeve extends outward to form a limiting rod, and the sleeve is provided with a torsion spring. One end of the torsion spring is engaged with the limiting rod, and the other end of the torsion spring is inserted into the L-shaped connecting rod.

4. The elevator guide rail clamping device according to claim 1, characterized in that, The clamping mechanism further includes: a number of limiting blocks equal to the number of the wedges, each of the limiting blocks having multiple rollers that abut against the sides of the wedges.

5. The elevator guide rail clamping device according to claim 4, characterized in that, Multiple rollers are embedded in the limiting block, and the distance between two adjacent rollers is equal.

6. The elevator guide rail clamping device according to claim 1, characterized in that, One sidewall of the limiting block extends outward to form a limiting boss, which is connected to the limiting groove provided on the corresponding wedge block.

7. The elevator guide rail clamping device according to claim 1, characterized in that, A safety device is provided at the top of the clamping mechanism. The safety device is connected to the wedge block in the clamping mechanism based on the second connecting rod, and the safety device moves by being driven by the wedge block.

8. The elevator guide rail clamping device according to claim 7, characterized in that, A limiting nut is provided on any of the second connecting rods, and the bottom of the limiting nut abuts against the top of the corresponding wedge.

9. The elevator guide rail clamping device according to claim 7, characterized in that, The safety device includes: a fixed frame and two symmetrically distributed movable plates; A fixed rod is provided on one side of any of the movable plates, the movable rod is movably inserted into the fixed frame based on the fixed rod, and a first spring is sleeved on the fixed rod.

10. The elevator guide rail clamping device according to claim 1, characterized in that, One end of any of the first connecting rods is inserted into the corresponding wedge, and the other end of the first connecting rod is provided with multiple fixing nuts. The multiple fixing nuts clamp one side of the connecting plate, so that the connecting plate is fixedly connected to the corresponding first connecting rod.

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