Elevator safety tongs and lifting mechanism combination

Abstract

The invention discloses an elevator safety clamp and lifting mechanism combination which comprises a mounting plate (1), a safety clamp and a lifting mechanism, in the first step of the braking state of the safety clamp, a movable clamp block (4) continues to move upwards, the side wall of the movable clamp block (4) is tightly attached to an elevator guide rail, meanwhile, the elevator guide rail is pushed to be tightly attached to a braking point (9) of a braking clamp block (5) firstly, and first-step braking is achieved; and in the second step of the safety clamp braking state, the movable clamp block (4) continues to move upwards, the side wall of the movable clamp block (4) is tightly attached to one side face of the elevator guide rail, and meanwhile a side wall braking point (9) and the whole side wall or part of the side wall of the brake clamp block (5) are tightly attached to the elevator guide rail to achieve complete braking. According to the elevator safety tongs and lifting mechanism combination, a single-set disc spring structure is adopted, self-adaption is achieved, meanwhile, a single-set disc spring provides enough elasticity, and therefore the braking effect can be guaranteed; meanwhile, the installation space of the elastic device is saved, and the structure is more compact.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of elevator accessories, in particular to a combination of elevator safety gear and lifting mechanism. BACKGROUND

[0002] The applicant's previous application of an adaptive safety gear for an elevator includes a safety gear body, a recess in which an elevator guide rail is embedded is arranged in the middle of the front surface of the safety gear body; a fixed jaw block and a movable jaw block are arranged on one side of the safety gear body of the recess, and a guide block and a fixed block are arranged on the other side of the safety gear body of the recess; a leaf spring is arranged on the back surface of the safety gear body, one end of the leaf spring is fixed with the fixed jaw block and the movable jaw block, and the other end of the leaf spring is fixed with the guide block and the fixed block; characterized in that: one side of the safety gear body where the guide block and the fixed block are arranged is provided with an elastic device at one end of the leaf spring on the same side; the elastic device is provided with a guide structure along the length direction and has a length adjustment structure; when braking, the guide block and the fixed block are pushed close to the elevator guide rail against the elastic device; when resetting, the elastic device pushes the guide block and the fixed block away from the elevator guide rail to the initial position. One side of the safety gear body where the guide block and the fixed block are arranged is provided with an elastic device at one end of the leaf spring on the same side; the elastic device is provided with a guide structure along the length direction and has a length adjustment structure; when braking, the guide block and the fixed block are pushed close to the elevator guide rail against the elastic device, realizing self-adaptation; when resetting, the elastic device pushes the guide block and the fixed block away from the elevator guide rail. Through the above guide structure, the elastic device has a guide row in the length direction when it is elastically deformed, preventing shaking and deviation and ensuring elastic deformation in a single direction; in addition, the length adjustment structure can reserve a certain adjustment space, facilitating assembly and micro-adjustment during on-site installation and later maintenance and inspection. The safety gear with the above structure has the following disadvantages: under the premise of insufficient space, the safety gear base lacks sufficient space to install the elastic device, especially the need for two sets of elastic devices above and below, assuming that one set of elastic devices is installed, then the braking jaw block will be unevenly stressed, affecting the key braking effect.

[0003] Also disclosed is a self-balanced progressive elevator safety gear, comprising a rack, a recess for connecting guide rails is arranged in the middle of the rack; an adjusting plate is connected to one side of the rack through an adjusting screw, a wedge-shaped guide block is connected to the adjusting plate through a spring; a wedge-shaped brake block is connected to the wedge-shaped guide block, a lifting rope is connected to the top of the wedge-shaped brake block; an eccentric wheel is further connected to the rack through a rotating shaft, the eccentric wheel and the wedge-shaped brake block are respectively located on both sides of the guide rail. The spring can automatically adjust the braking force of the wedge-shaped brake block when the wedge-shaped brake block clamps the guide rail; the eccentric wheel can rotate when the wedge-shaped brake block clamps the guide rail, thereby adjusting the distance between the rotating shaft and the guide rail, and further adjusting the braking force of the eccentric wheel on one side of the guide rail; thereby the braking forces on both sides of the guide rail can be automatically balanced, and the deformation of the guide rail is prevented. The structure is also to automatically adjust the braking force of the wedge-shaped brake block through two groups of springs, but a larger installation space is also required, and the requirements for the springs are also high, and the two groups of springs need to be highly consistent SUMMARY

[0004] The technical problem to be solved by the present application is to provide an elevator safety gear and lifting mechanism combination that adopts a single group of disc spring structure, is self-adaptive, provides sufficient elasticity for the single group of disc spring, thereby ensuring the braking effect, saves the installation space of the elastic device, and makes the structure more compact.

[0005] The technical scheme of the present application is to provide an elevator safety gear and lifting mechanism combination with the following structure, comprising a mounting plate, a safety gear and a lifting mechanism, characterized in that: the safety gear is installed on one side of the mounting plate and both have a transverse adjustment structure in the direction perpendicular to the elevator guide rail, the lifting mechanism is arranged side by side on the side of the safety gear and is installed on the mounting plate, the lifting mechanism is provided with a swing arm and a lifting plate, the lifting plate is linked in the middle of the swing arm, one end of the swing arm is a fulcrum and is connected to the connecting shaft of the mounting plate, the other end of the swing arm extends transversely to the safety gear and is connected with the movable jaw block on the safety gear; the safety gear further comprises a brake jaw block connected in a floating manner, the brake jaw block is arranged in the direction parallel to the guide rail and comprises a first connecting end at the bottom and a second connecting end at the top, any one of the rotary connection points in the brake jaw block is rotatably connected to the safety gear base, any height position of the rotary connection point to the second connecting end and the side surface close to the side of the elevator guide rail are provided with protruding brake points, the second connecting end is provided with a group of axially superimposed disc springs; in the initial state, the movable jaw block and the brake jaw block are both provided with a gap from the elevator guide rail, and the brake jaw block is in a vertical state; in the safety gear triggering state, the lifting mechanism works and lifts the movable jaw block through the swing arm and moves upward; in the first step of the safety gear braking state, the movable jaw block continues to move upward and the side wall is tightly attached to the elevator guide rail, at the same time, the brake point of the brake jaw block is first tightly attached to the elevator guide rail, thereby achieving the first step of stopping; in the second step of the safety gear braking state, the movable jaw block continues to move upward and the side wall of the movable jaw block is tightly attached to one side surface of the elevator guide rail, at the same time, the side wall brake point and the entire side wall or part of the side wall of the brake jaw block are tightly attached to the elevator guide rail, thereby completely stopping.

[0006] The safety gear is installed on one side of the mounting plate and both have a transverse adjustment structure in the direction perpendicular to the elevator guide rail, which means that the mounting plate is provided with two groups of long holes, and the bolts for fixing the mounting plate pass through the corresponding long holes and are fixed with the mounting plate, and when the bolts are loosened, the safety gear can move freely in the transverse direction of the mounting plate.

[0007] The mounting plate is provided with a support structure connected to the swing arm for adjusting the inclination angle of the swing arm, the support structure comprises a first support plate, a second support plate, a spring and a connecting screw rod, the first support plate is fixed on the mounting plate, the second support plate is fixed with the swing arm, the first support plate is provided with a first bent plate, the second support plate is provided with a second bent plate, the second bent plate is arranged in parallel with the first bent plate and located at the top of the first bent plate, the connecting screw rod passes through the spring, the first bent plate and the second bent plate in sequence from bottom to top, extends out of the second bent plate and is screwed; the bottom of the spring abuts against the head of the connecting screw rod and the top abuts against the bottom of the first bent plate, the spring provides an upward pre-tightening force for the second bent plate, thereby eliminating the swing gap of the swing arm.

[0008] The brake block is a lever structure, the fulcrum is a rotating shaft and is installed on the safety brake base, the power arm is the length L1 from the first connecting end to the fulcrum, and the resistance arm is the length L2 from the second connecting end to the fulcrum, and the length L1 is less than the length L2.

[0009] In the braking process, the movable brake block is pulled upward, and the disc spring is compressed to provide clamping force because the force point of the brake block is above the fulcrum; the friction coefficient between the elevator guide rail and the movable brake block changes with the friction state during the clamping process of the elevator guide rail and the movable brake block, f=μ*Fn, when the friction coefficient is too large, the disc spring elastic force is unchanged, the normal force Fn is reduced, and the friction force is automatically adjusted to be small, forming a negative feedback.

[0010] When the elevator guide rail extrudes the brake block, the second connecting end of the brake block extrudes the disc spring, and the extruded disc spring provides a reaction force F1, and based on the length L1 of the power arm from the first connecting end to the fulcrum being less than the length L2 of the second connecting end to the fulcrum, the reaction force F2 received by the brake point and the second connecting end is greater than the reaction force F1, which is used to increase the braking force of the brake point and the second connecting end with the elevator guide rail.

[0011] The second connecting end is provided with a guide rod, the guide rod is arranged along the axis of the disc spring, the disc spring is axially sleeved outside the guide rod, a through hole is arranged on the protrusion of the safety brake base, the free end of the guide rod is embedded in the through hole, the inner diameter of the through hole is greater than the diameter of the guide rod, and the guide rod has a swing space in the through hole.

[0012] In the second step of the safety brake braking state, the brake block is extruded by the elevator guide rail and moves in the direction perpendicular to the elevator guide rail while swinging around the fulcrum.

[0013] After adopting the above structure, the present application has the following advantages:

[0014] 1. The pull-up mechanism and the safety brake are arranged transversely and parallel to each other, which is suitable for conditions where the installation position is insufficient up and down.

[0015] 2. The swing arm of the pull-up mechanism always has an upward pre-tightening force under the action of the spring, so that the safety brake can be driven instantaneously at the first time in the triggering state, and the gap is eliminated, so that the triggering is more agile.

[0016] 3. Since the safety brake is installed on one side of the mounting plate and the two have a transverse adjustment structure in the direction perpendicular to the elevator guide rail, the transverse position of the safety brake on the mounting plate can be adjusted, and the position can be adjusted according to the elevator guide rail to match the pull-up mechanism, so that the two achieve the best matching precision.

[0017] 4. In the process of braking, in the first step of the safety gear braking state, the movable jaw continues to move upward and the side wall is in close contact with the elevator guide rail, and the elevator guide rail is in close contact with the braking point of the brake jaw, thereby achieving the first step of braking; in the second step of the safety gear braking state, the movable jaw continues to move upward and the side wall of the movable jaw is in close contact with one side of the elevator guide rail, and the side wall braking point and the entire side wall or part of the side wall of the brake jaw are in close contact with the elevator guide rail, thereby completely stopping. The braking starts from a braking point in close contact with the elevator guide rail, and then the side wall is in close contact with the surface of the elevator guide rail, thereby achieving point braking and surface braking, further increasing the braking effect, and the braking effect of the braking point is further improved in the second step of surface braking.

[0018] 5. In addition, the safety gear further comprises a brake jaw connected by floating, which is arranged in the direction parallel to the guide rail and comprises a first connecting end at the bottom and a second connecting end at the top. Any one of the rotating connection points of the brake jaw is rotatably connected to the safety gear base. A protruding braking point is arranged at any height position of the second connecting end and close to the side surface of the elevator guide rail. A group of axially stacked disc springs are arranged at the second connecting end, so that the brake jaw connected by floating becomes a lever, and the power arm and the resistance arm are located on the same side. The lever can increase the force of the braking point when the brake jaw is pressed, thereby improving the braking effect.

[0019] As an improvement, the safety gear is installed on one side of the mounting plate, and the two are horizontally adjusted in the direction perpendicular to the elevator guide rail. The mounting plate is provided with two groups of long holes, and the bolts for fixing the mounting plate pass through the corresponding long holes and are fixed with the mounting plate. When the bolts are loosened, the safety gear can move freely along the mounting plate.

[0020] As an improvement, the mounting plate is provided with a support structure connected to the swing arm for adjusting the inclination angle of the swing arm. The support structure comprises a first support plate, a second support plate, a spring and a connecting screw. The first support plate is fixed on the mounting plate, and the second support plate is fixed with the swing arm. The first support plate is provided with a first bent plate, and the second support plate is provided with a second bent plate. The second bent plate is arranged in parallel with the first bent plate and located at the top of the first bent plate. The connecting screw passes through the spring, the first bent plate and the second bent plate in sequence from bottom to top, extends out of the second bent plate and is screwed. The bottom of the spring abuts against the head of the connecting screw, and the top of the spring abuts against the bottom of the first bent plate. The spring provides an upward pre-tightening force for the second bent plate, thereby eliminating the swing gap of the swing arm.

[0021] As an improvement, the brake jaw block is a lever structure, the fulcrum is a rotating shaft and is installed on the safety jaw base, the power arm is the length L1 from the first connecting end to the fulcrum, the resistance arm is the length L2 from the second connecting end to the fulcrum, the length L1 is less than the length L2, and the force arm of the lever is used to improve the force of the second connecting end during braking.

[0022] As an improvement, the movable jaw block is pulled up during braking, and the disc spring is compressed to provide clamping force during clamping of the elevator guide rail. The friction coefficient between the elevator guide rail and the movable jaw block changes with the friction state during braking, f=μ*Fn. When the friction coefficient is too large, the disc spring elastic force remains unchanged, the normal pressure Fn decreases, and the friction force is automatically adjusted to be smaller, forming a negative feedback.

[0023] As an improvement, when the elevator guide rail presses the brake jaw block, the second connecting end of the brake jaw block presses the disc spring, and the compressed disc spring provides a reaction force F1. Based on the length L1 of the power arm from the first connecting end to the fulcrum being less than the length L2 of the second connecting end to the fulcrum, the reaction force F2 received by the braking point and the second connecting end is greater than the reaction force F1, thereby increasing the braking force between the braking point and the second connecting end and the elevator guide rail. The force arm of the lever is used to improve the force of the second connecting end during braking.

[0024] As an improvement, the second connecting end is provided with a guide rod, the guide rod is arranged along the axis of the disc spring, the disc spring is axially sleeved outside the guide rod, a through hole is arranged on the protrusion of the safety jaw base, the free end of the guide rod is embedded in the through hole, the inner diameter of the through hole is greater than the diameter of the guide rod, and the guide rod has a swing space in the through hole, so that the guide rod also has axial guidance and limiting of the disc spring. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a front installation perspective view of the elevator safety jaw and lifting mechanism combination of the present application.

[0026] Figure 2 It is a front view of the elevator safety jaw and lifting mechanism combination of the present application.

[0027] Figure 3 It is a back installation perspective view of the elevator safety jaw and lifting mechanism combination of the present application.

[0028] Figure 4 It is a perspective view of the elevator safety jaw and lifting mechanism combination of the present application.

[0029] Figure 5 It is a front perspective view of the lifting mechanism of the present application.

[0030] Figure 6It is the back perspective view of the lifting mechanism of the present application.

[0031] Figure 7 It is the perspective view of the safety clamp of the present application.

[0032] Figure 8 It is the perspective view of the safety clamp of the present application.

[0033] Figure 9 It is the perspective view of the brake clamp block of the present application

[0034] Figure 10 It is the cross-sectional view of the safety clamp of the present application.

[0035] Figure 11 It is the schematic view of the safety clamp of the present application before stopping.

[0036] Figure 12 It is the schematic view of the safety clamp of the present application after stopping.

[0037] As shown in the figure, 1, mounting plate, 2, swing arm, 3, lifting plate, 4, connecting shaft, 5, brake clamp block, 6, first connecting end, 7, second connecting end, 8, safety clamp base, 9, brake point, 10, disc spring, 11, long hole, 12, bolt, 13, first support plate, 14, second support plate, 15, first bending plate, 16, second bending plate, 17, spring, 18, connecting screw, 19, through hole, 20, guide rod, 21, connecting shaft. Specific embodiments

[0038] The present application will be further described below in conjunction with the accompanying drawings.

[0039] As Figures 1-10 shown, the elevator safety clamp and lifting mechanism combination of the present application comprises mounting plate 1, safety clamp and lifting mechanism. The safety clamp is installed on one side of the mounting plate 1 and both have a structure with lateral adjustment in the direction of the vertical elevator guide rail, specifically, the mounting plate 1 is provided with two sets of upper and lower long holes 11, the bolts 12 for fixing the mounting plate 1 respectively pass through a corresponding long hole and are fixed with the mounting plate 1, and the safety clamp is freely moved laterally along the mounting plate 1 when the bolts 12 are loosened. The lifting mechanism is arranged side by side on the side of the safety clamp and is installed on the mounting plate 1. As Figure 1 shown, the lifting mechanism is located on the left side and the safety clamp is located on the right side.

[0040] As Figure 4 and Figure 5 shown, the lifting mechanism is provided with a swing arm 2 and a lifting plate 3, the lifting plate 3 is linked in the middle of the swing arm 2, one end of the swing arm 2 is a fulcrum and is connected to the connecting shaft 21 of the mounting plate 1, the other end of the swing arm 2 extends laterally to the safety clamp and is connected with the movable clamp block 4 on the safety clamp.

[0041] As Figure 6 shown, the mounting plate 1 is provided with a support structure connected to the swing arm 2 for adjusting the inclination angle of the swing arm 2, which includes a first support plate 13, a second support plate 14, a spring 17 and a connecting screw 18, the first support plate 13 is fixed on the mounting plate 1, the second support plate 14 is fixed with the swing arm 2, the first support plate 13 is provided with a first bent plate 15, the second support plate 14 is provided with a second bent plate 16, the second bent plate 16 is arranged in parallel with the first bent plate 15 and located at the top of the first bent plate 15, the connecting screw 18 passes through the spring 17, the first bent plate 15 and the second bent plate 16 in turn from bottom to top, extends out of the second bent plate 16 and is screwed; the bottom of the spring 17 abuts against the head of the connecting screw 18, and the top abuts against the bottom of the first bent plate 15, the spring 17 provides an upward pre-tightening force for the second bent plate 16, thereby eliminating the swing gap of the swing arm 2.

[0042] As Figure 7 and Figure 8 shown, the safety clamp further includes a brake clamp block 5 connected in a floating manner, which is arranged in the direction of the parallel guide rail, including a first connecting end 6 at the bottom and a second connecting end 7 at the top, any one of the rotary connection points in the brake clamp block 5 is rotatably connected to the safety clamp base 8, any height position of the rotary connection point to the second connecting end 7 and the side surface close to the side of the elevator guide rail is provided with a protruding brake point 9, the second connecting end 7 is provided with a group of axially superimposed disc springs 10; in the initial state, the movable clamp block 4 and the brake clamp block 5 are provided with a gap between them and the elevator guide rail, and the brake clamp block 5 is in a vertical state; in the safety clamp triggering state, the lifting mechanism works and lifts the movable clamp block 4 through the swing arm 2, and moves upward; in the first step of the safety clamp braking state, the movable clamp block 4 continues to move upward and the side wall is tightly attached to the elevator guide rail, at the same time, the brake point 9 of the brake clamp block 5 is tightly attached to the elevator guide rail, which plays the first step of stopping; in the second step of the safety clamp braking state, the movable clamp block 4 continues to move upward, the side wall of the movable clamp block 4 is tightly attached to one side of the elevator guide rail, at the same time, the side wall brake point 9 and the entire side wall or part of the side wall of the brake clamp block 5 are tightly attached to the elevator guide rail to completely stop.

[0043] As Figure 9 shown, the brake clamp block 5 is a lever structure, the fulcrum is a rotating shaft installed on the safety clamp base 8, the power arm is the length L1 from the first connecting end 6 to the fulcrum, and the resistance arm is the length L2 from the second connecting end 7 to the fulcrum, the length L1 is less than the length L2.

[0044] During braking, the movable clamp 4 is pulled upwards. During the clamping process of the elevator guide rail, since the force point of the brake clamp 5 is above the fulcrum, the disc spring 10 is compressed to provide clamping force. During braking, the friction coefficient between the elevator guide rail and the movable clamp 4 changes with the friction state, f=μ*Fn. When the friction coefficient is too large, the spring force of the disc spring remains unchanged, the positive pressure Fn decreases, and then the friction force is automatically adjusted to decrease, forming negative feedback.

[0045] When the elevator guide rail squeezes the brake caliper block 5, the second connecting end 7 of the brake caliper block 5 squeezes the disc spring 10. The squeezed disc spring 10 provides a reaction force F1. Since the length L1 of the power arm from the first connecting end 6 to the fulcrum is less than the length L2 of the second connecting end 7 to the fulcrum, the reaction force F2 received by the braking point 9 and the second connecting end 7 is greater than the reaction force F1, which is used to increase the braking force between the braking point 9 and the second connecting end 7 and the elevator guide rail.

[0046] The second connecting end 7 is provided with a guide rod 20, which is arranged along the axis of the disc spring 10. The disc spring 10 is axially sleeved on the guide rod 20. The protrusion of the safety clamp base 8 is provided with a through hole 19. The free end of the guide rod 20 is embedded in the through hole 19. The inner diameter of the through hole 18 is larger than the diameter of the guide rod 20. The guide rod 20 has swing space in the through hole 19.

[0047] In the second step of the safety clamp braking state, after the brake clamp block 5 is squeezed by the elevator guide rail, it moves to the right in the direction perpendicular to the elevator guide rail while swinging around the fulcrum.

[0048] Working principle:

[0049] In the initial state, such as Figure 11 As shown, there is a gap between the movable clamp 4 and the brake clamp 5 and the elevator guide rail, and the brake clamp 5 is in a vertical state; at this time, the swing arm 2 of the lifting mechanism is tilted downward.

[0050] When the safety clamp is triggered, the lifting mechanism works, the lifting plate 3 is pulled up, and the swing arm is also a lever, which drives the swing arm 2 to swing up and lift the movable clamp block 4 through the swing arm 2 and move it upward; the left slope of the clamp block 4 relies on the ball bearing row to tilt upward along the left slope of the safety clamp base 8, and at the same time moves laterally to the right to approach the elevator guide rail.

[0051] In the first step of the safety clamp braking state, the movable clamp block 4 continues to move upward and its side wall is in close contact with the elevator guide rail. At the same time, it pushes the elevator guide rail to be in close contact with the braking point 9 of the brake clamp block 5, thus achieving the first step of stopping.

[0052] In the second step of the safety gear braking state, the movable jaw 4 continues to move upward and the side wall of the movable jaw 4 is in close contact with one side of the elevator guide rail, while the side wall of the brake jaw 5 is in close contact with the elevator guide rail at the braking point 9 and the entire side wall or part of the side wall is in close contact with the elevator guide rail to completely stop, as shown in Figure 12 At the same time of stopping, the bottom of the movable jaw 4 rotates around the fulcrum when the elevator guide rail is in close contact with the movable jaw 4.

Claims

1. An elevator safety clamp and lifting mechanism assembly, comprising a mounting plate (1), a safety clamp, and a lifting mechanism, characterized in that: The safety clamp is installed on one side of the mounting plate (1) and both have a lateral adjustment structure in the direction of the vertical elevator guide rail. The lifting mechanism is located side by side on the side of the safety clamp and is installed on the mounting plate (1). The lifting mechanism is provided with a swing arm (2) and a lifting plate (3). The lifting plate (3) is connected to the middle of the swing arm (2). One end of the swing arm (2) is a fulcrum and is connected to the connecting shaft (21) of the mounting plate (1). The other end of the swing arm (2) extends laterally to the safety clamp and is connected to the movable clamp block (4) on the safety clamp. The safety clamp also includes a brake caliper block (5) with a floating connection. The brake caliper block (5) is arranged along the direction of the parallel guide rail and includes a first connecting end (6) at the bottom and a second connecting end (7) at the top. Any one of the rotating connecting points of the brake caliper block (5) is rotatably connected to the safety clamp base (8). The side of the rotating connecting point at any height position from the second connecting end (7) and close to the elevator guide rail is provided with a protruding brake point (9). The second connecting end (7) is provided with a set of axially superimposed disc springs (10). In the initial state, there is a gap between the movable clamp (4) and the brake clamp (5) and the elevator guide rail, and the brake clamp (5) is in a vertical state; When the safety clamp is triggered, the lifting mechanism operates and lifts the movable clamp block (4) via the swing arm (2), and moves it upward; In the first step of the safety clamp braking state, the movable clamp block (4) continues to move upward and its side wall is in close contact with the elevator guide rail. At the same time, it pushes the elevator guide rail to be in close contact with the braking point (9) of the brake clamp block (5) to achieve the first step of stopping. In the second step of the safety clamp braking state, the movable clamp block (4) continues to move upward and the side wall of the movable clamp block (4) is in close contact with one side of the elevator guide rail. At the same time, the braking point (9) of the side wall of the braking clamp block (5) and the entire side wall or part of the side wall are in close contact with the elevator guide rail and come to a complete stop.

2. The elevator safety clamp and lifting mechanism assembly according to claim 1, characterized in that: The structure in which the safety clamp is installed on one side of the mounting plate (1) and both have a lateral adjustment in the direction of the vertical elevator guide rail means that the mounting plate (1) is provided with two sets of long holes (11) at the top and bottom. The bolts (12) used to fix the mounting plate (1) pass through the corresponding long hole and are fixed to the mounting plate (1). When the bolts (12) are loosened, the safety clamp can move freely in the lateral direction along the mounting plate (1).

3. The elevator safety clamp and lifting mechanism assembly according to claim 1, characterized in that: The mounting plate (1) is provided with a support structure, which is connected to the swing arm (2) for adjusting the tilt angle of the swing arm (2). The support structure includes a first support plate (13), a second support plate (14), a spring (17), and a connecting screw (18). The first support plate (13) is fixed on the mounting plate (1), and the second support plate (14) is fixed to the swing arm (2). The first support plate (13) is provided with a first bending plate (15), and the second support plate (14) is provided with a second bending plate (16). The second bending plate (16) is arranged parallel to the first bending plate (15) and located on top of the first bending plate (15). The connecting screw (18) passes through the spring (17), the first bending plate (15), and the second bending plate (16) from bottom to top, extends out of the second bending plate (16), and is tightened with a screw. The bottom of the spring (17) abuts against the head of the connecting screw (18), and the top abuts against the bottom of the first bending plate (15). The spring (17) provides an upward preload force to the second bending plate (16), thereby eliminating the swing gap of the swing arm (2).

4. The elevator safety clamp and lifting mechanism assembly according to claim 1, 2, or 3, characterized in that: The brake caliper block (5) is a lever structure with a pivot shaft at the fulcrum and mounted on the safety caliper base (8). The power arm is the first connecting end (6) with a length of L1 to the fulcrum, and the resistance arm is the second connecting end (7) with a length of L2 to the fulcrum. The length L1 is less than the length L2.

5. The elevator safety clamp and lifting mechanism assembly according to claim 4, characterized in that: During braking, the movable clamp (4) is pulled upward and clamps the elevator guide rail. Since the force point of the brake clamp (5) is above the fulcrum, the disc spring (10) is compressed and provides clamping force. During braking, the friction coefficient between the elevator guide rail and the movable clamp (4) changes with the friction state, f=μ*Fn. When the friction coefficient is too large, the spring force of the disc spring remains unchanged, the positive pressure Fn decreases, and then the friction force is automatically adjusted to decrease, forming negative feedback.

6. The elevator safety clamp and lifting mechanism assembly according to claim 4 or 5, characterized in that: When the elevator guide rail squeezes the brake caliper block (5), the second connecting end (7) of the brake caliper block (5) squeezes the disc spring (10). The squeezed disc spring (10) provides a reaction force F1. Since the length L1 from the first connecting end (6) to the fulcrum of the power arm is less than the length L2 from the second connecting end (7) to the fulcrum, the reaction force F2 received by the braking point (9) and the second connecting end (7) is greater than the reaction force F1, which is used to increase the braking force between the braking point (9) and the second connecting end (7) and the elevator guide rail.

7. The elevator safety clamp and lifting mechanism assembly according to claim 5 or 6, characterized in that: The second connecting end (7) is provided with a guide rod (20), the guide rod (20) is arranged along the axis of the disc spring (10), the disc spring (10) is axially sleeved on the guide rod (20), the protrusion of the safety clamp base (8) is provided with a through hole (19), the free end of the guide rod (20) is embedded in the through hole (19), the inner diameter of the through hole (18) is larger than the diameter of the guide rod (20), and the guide rod (20) has swing space in the through hole (19).

8. The elevator safety clamp and lifting mechanism assembly according to claim 1, characterized in that: In the second step of the safety clamp braking state, after the brake clamp block (5) is squeezed by the elevator guide rail, it moves in the direction perpendicular to the elevator guide rail while swinging around the fulcrum.

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