A sliding guide shoe for elevator cars

Abstract

This utility model discloses an elevator car sliding guide shoe, including a guide shoe seat, a cylindrical guide shoe shaft connected to the front end of the guide shoe seat, a spring seat and a guide shoe bracket sequentially mounted on the guide shoe shaft at the rear side of the guide shoe seat, and a connecting elastic piece connecting the spring seat and the guide shoe bracket at the top. The elevator car sliding guide shoe of this utility model utilizes the pressure of a buffer spring to ensure that the bottom of the guide shoe liner remains in contact with the guide rail end face, thereby reducing vibration and impact during car operation and ensuring smooth car running. When wear of parts causes increased clearance, a compensating spring can push the spring seat forward, and through the meshing action of the toothed plate and the teeth on the guide shoe bracket, as well as the downward pressure of the connecting elastic piece, the wear of the guide shoe liner material is automatically compensated, ensuring the function of the buffer spring.

Description

Technical Field

[0001] This utility model belongs to the field of lifting and transport machinery technology, specifically, it relates to a sliding guide shoe for an elevator car. Background Technology

[0002] The main function of elevator car guide shoes is to ensure that the elevator car moves back and forth along the fixed guide rails on the building shaft wall, preventing the car from tilting or swaying during operation, thus ensuring stable elevator operation and passenger safety. Elevator car guide shoes are a key component ensuring elevator operation; each elevator car is equipped with four sets of guide shoes, located on both sides of the upper beam and below the safety clamp seat at the bottom of the car.

[0003] Elevator car guide shoes are generally divided into rolling guide shoes and sliding guide shoes. Rolling guide shoes reduce friction through rolling contact, while sliding guide shoes are secured to the guide rail by a nylon liner. They have the advantages of simple structure and strong load-bearing capacity. Their working principle is that the concave groove on the liner matches the convex working surface of the guide rail, restricting the car to move only in the vertical direction. This prevents the car from twisting on the traction steel wire rope and from tilting or swaying under asymmetrical loads. It also keeps the elevator car door sill, landing door sill, hoistway walls and various parts of the operating system in a constant positional relationship.

[0004] There is a certain gap between the guide shoe liner and the guide rail in the elevator car to ensure movement during operation. The size of this gap has a significant impact on the operation of the elevator car. If the gap is too large, the elevator car will shake during operation, which will not only affect the comfort of the passengers but may also indirectly affect the operation of components such as the car doors and landing doors. Conversely, if the gap is too small, it may lead to increased friction between the guide shoe and the guide rail, increasing noise during operation and thus accelerating the wear of the guide shoe liner, shortening its service life.

[0005] Existing elevator car sliding guide shoes mostly adopt a simple, rigid, fixed structure, requiring adjustment of the fit clearance between the guide shoe and the guide rail during installation. During elevator use, wear can cause the clearance to widen, resulting in elevator shaking; conversely, deformation of components may cause the clearance to narrow, leading to car sluggishness and increased traction. Furthermore, rigid sliding guide shoes lack cushioning, resulting in significant vibration and noise during car operation and poor running stability. Utility Model Content

[0006] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide an elevator car sliding guide shoe, which adopts a guide shoe support mechanism with elastic buffer function and gap compensation to reduce the vibration and impact during elevator car operation and make the elevator car run smoothly.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: An elevator car sliding guide shoe includes a guide shoe seat, a cylindrical guide shoe shaft connected to the front end of the guide shoe seat, a spring seat and a guide shoe bracket sequentially mounted on the guide shoe shaft at the rear side of the guide shoe seat, and a connecting elastic piece connecting the spring seat and the guide shoe bracket at the top.

[0008] Furthermore, a first threaded hole is provided on the rear end face of the guide shoe seat, and a shoe liner receiving groove is provided on the front end, and a shoe liner is fixed therein; the shoe liner has a groove, the width of which is the same as the width of the car guide rail, and is used to cooperate with the car guide rail to restrict the car to move only in the up and down direction. The front end of the guide shoe shaft is provided with an external thread that matches the first threaded hole of the guide shoe seat. The rear end of the external thread is provided with an annular boss. The external thread of the guide shoe shaft is screwed into the first threaded hole of the guide shoe seat and locked by a fixing nut, thereby connecting the guide shoe shaft and the guide shoe seat into one unit.

[0009] Furthermore, the spring seat includes a cylindrical spring seat body, a first receiving hole is provided at the front end of the spring seat body, and a buffer spring is provided therein; a first through hole is provided at the bottom of the first receiving hole, the diameter of the first through hole is the same as the outer diameter of the guide shoe shaft, and the front and rear ends of the buffer spring abut against the annular boss and the bottom of the first receiving hole, respectively. The guide shoe bracket includes a cylindrical bracket body. A second receiving hole is provided at the front end of the bracket body, and a bushing receiving hole is provided at the rear end, with the two connected by a second through hole. The second receiving hole, the bushing receiving hole, and the second through hole are coaxial, and their axes coincide with the axis of the first through hole of the spring seat. A compensating spring is provided inside the second receiving hole, and a sliding bushing is provided inside the bushing receiving hole. The sliding bushing is cylindrical, with its outer diameter being the same as the inner diameter of the bushing receiving hole and its inner diameter being the same as the outer diameter of the guide shoe shaft. The inner diameter of the second through hole is the same as the outer diameter of the guide shoe shaft. The front and rear ends of the compensating spring abut against the rear end of the spring seat and the bottom of the second receiving hole, respectively. The rear end of the guide shoe shaft passes sequentially through the buffer spring in the first receiving hole, the first through hole, the compensation spring in the second receiving hole, the second through hole, and the sliding bushing in the bushing receiving hole, and a limiting plate is fixed at the rear end to prevent the guide shoe shaft from coming out.

[0010] According to a preferred embodiment, the rear end of the spring seat is recessed inward to form a limiting groove corresponding to the position of the compensating spring, so as to provide abutment and limiting at the front end of the compensating spring.

[0011] According to this utility model, the first through hole and the guide shoe shaft are in clearance fit, the second through hole and the guide shoe shaft are in clearance fit, and the sliding bushing and the guide shoe shaft are in interference fit.

[0012] According to this utility model, a second threaded hole is provided on the rear end face of the guide shoe shaft, and a corresponding fixing hole is provided on the limiting plate. The limiting plate is fixed to the rear end of the guide shoe shaft by a fixing member.

[0013] According to this utility model, the guide shoe bracket also includes a base plate connected to the bottom of the bracket body. The base plate has several fixing holes and is connected and fixed to the elevator car by fasteners.

[0014] Furthermore, the main body of the guide shoe bracket is connected to the base plate by a vertical plate, and triangular plates are added on both sides of the vertical plate to enhance the overall structural strength.

[0015] According to this utility model, the spring seat further includes a first protrusion located at the top of the spring seat body; the guide shoe bracket further includes a second protrusion located at the top of the bracket body, the upper surface of the second protrusion is provided with longitudinal teeth, and a toothed plate is configured to mesh with it; the teeth are in the shape of right-angled triangles, and the front side of each tooth is perpendicular to the horizontal plane; correspondingly, the lower surface of the toothed plate is also provided with teeth, which are also in the shape of right-angled triangles, and the rear side of each tooth is perpendicular to the horizontal plane, and meshes with the teeth on the upper surface of the second protrusion. The upper surface of the first boss of the spring seat is flush with the upper surface of the toothed plate that engages with the second boss of the guide shoe bracket, and they are connected above each other by the connecting elastic piece.

[0016] Furthermore, multiple fixing holes are provided on the upper surface of the first boss and the upper surface of the toothed plate, and a corresponding number of fixing holes are also provided on the connecting elastic sheet. The two sides of the connecting elastic sheet are fixed to the first boss and the toothed plate respectively by the fixing component, thereby connecting the two to each other.

[0017] According to a preferred embodiment, a pad is further provided between the connecting elastic piece and the fixing member on the first boss. The length of the pad covers multiple fixing holes on the first boss, and a corresponding number of fixing holes are also provided on the pad. The pad and the connecting elastic piece are fixed to the first boss by the fixing member.

[0018] According to this utility model, the guide shoe seat is provided with cover plates at the upper and lower ends of the guide shoe receiving groove. Fixing holes are provided on both the upper and lower end faces of the guide shoe seat and on the cover plates. The outer edge of the cover plate is provided with a folded edge. Correspondingly, the outer edges of the upper and lower ends of the groove of the boot liner are provided with notches. The size of the notches is adapted to the cross-sectional size of the folded edge. The cover plates are fixed to the upper and lower ends of the guide shoe seat by the fixing members. The folded edge is just inserted into the notch of the groove, thereby limiting and fixing the boot liner in the guide shoe receiving groove.

[0019] This utility model has the following beneficial effects: 1. The elevator car sliding guide shoe of this utility model has a buffer spring pressure that allows the bottom of the guide shoe liner to always be in contact with the guide rail end face, so as to reduce the vibration and impact during car operation and make the car run smoothly.

[0020] 2. When the wear of parts causes the gap to increase, the spring seat can be pushed forward by the compensation spring. Through the meshing action of the toothed plate and the upper row of teeth of the guide shoe bracket and the downward pressure of the connecting elastic plate, the wear of the guide shoe liner material is automatically compensated, ensuring the function of the buffer spring.

[0021] 3. The elevator car sliding guide shoe of this utility model has a simple structure, reliable operation, and convenient installation. It has low vibration and noise during car operation and good running stability. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the sliding guide shoe for the elevator car according to this utility model.

[0023] Figure 2 This is a cross-sectional structural diagram of the elevator car sliding guide shoe of this utility model.

[0024] Figure 3 This is a structural diagram of the sliding guide shoe liner.

[0025] Figure 4 This is a structural diagram of the sliding guide shoe and guide shoe seat.

[0026] Figure 5 This is a structural diagram of the sliding guide shoe shaft.

[0027] Figure 6 This is a structural diagram of the sliding guide shoe tooth plate.

[0028] Figure 7 This is a structural diagram of the sliding guide shoe support.

[0029] Drawing number explanation: 1-Fixing nut; 2-Fixing hole; 3-Screw; 4-Washer plate; 5-Vertical plate; 6-Triangle plate; 10-Guide shoe seat; 11-First threaded hole; 12-Guide shoe receiving groove; 13-Shoe liner; 14-Groove; 15-Notch; 16-Cover plate; 17-Folded edge; 20-Guide shoe shaft; 21-External thread; 22-Annular boss; 23-Limiting plate; 24-Second threaded hole; 25-Limiting groove; 30-Spring seat; 31-Spring seat body; 32-First boss; 33-First receiving hole; 34-Buffer spring; 35-First through hole; 40-Guide shoe bracket; 41-Bracket body; 42-Base plate; 43-Second boss; 44-Second receiving hole; 45-Bushplate receiving hole; 46-Second through hole; 47-Compensating spring; 48-Sliding bushing; 49-Gear; 50-Gear plate; 60-Connecting elastic plate. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the following embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0031] In the context of this utility model, it should be noted that the terms "front", "rear", "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. The above description is for the purpose of simplifying the description of this utility model and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0032] like Figure 1 As shown, the elevator car sliding guide shoe of this utility model includes a guide shoe seat 10, a cylindrical guide shoe shaft 20 connected to the front end of the guide shoe seat 10, a spring seat 30 and a guide shoe bracket 40 sequentially mounted on the guide shoe shaft 20 on the rear side of the guide shoe seat 10, and a connecting elastic piece 60 connecting the spring seat 30 and the guide shoe bracket 40 above.

[0033] Combination Figure 2 , Figure 3 and Figure 4 As shown, the guide shoe seat 10 has a first threaded hole 11 on its rear end face and a shoe liner receiving groove 12 on its front end, and a shoe liner 13 is fixed therein; the shoe liner 13 has a groove 14, the width of which is the same as the width of the car guide rail (not shown in the figure), and is used to cooperate with the car guide rail to restrict the car to move only in the up and down direction.

[0034] Combination Figure 2 and Figure 5 As shown, the front end of the guide shoe shaft 20 is provided with an external thread 21 that is adapted to the first threaded hole 11 of the guide shoe seat 10, and the rear end of the external thread is provided with an annular boss 22. The external thread 21 of the guide shoe shaft 20 is screwed into the first threaded hole 11 of the guide shoe seat 10 and locked by the fixing nut 1, thereby connecting the guide shoe shaft 20 and the guide shoe seat 10 into one unit. like Figure 2 As shown, the spring seat 30 includes a cylindrical spring seat body 31 and a first boss 32 located on the top of the spring seat body 31. The first boss is preferably a square boss. A first receiving hole 33 is provided at the front end of the spring seat body 31, and a buffer spring 34, preferably a cylindrical helical spring, is provided therein. A first through hole 35 is provided at the bottom of the first receiving hole 33. The diameter of the first through hole 35 is the same as the outer diameter of the guide shoe shaft 20. The front and rear ends of the buffer spring 34 abut against the annular boss 22 and the bottom of the first receiving hole 33, respectively.

[0035] Combination Figure 2 and Figure 6 As shown, the guide shoe bracket 40 includes a cylindrical bracket body 41, a base plate 42 connected below the bracket body 41, and a second boss 43 located on the top of the bracket body 41. The base plate 42 has several fixing holes 2 and is fixed to the elevator car (not shown) by fasteners such as screws. The front end of the bracket body 41 has a second receiving hole 44, and the rear end has a bushing receiving hole 45, which are connected by a second through hole 46. The second receiving hole 44, the bushing receiving hole 45, and the second through hole 46 are coaxial. The axis of the spring seat 30 coincides with the axis of the first through hole 35. A compensating spring 47, preferably a cylindrical helical spring, is provided in the second receiving hole 44. A sliding bushing 48, cylindrical in shape, is provided in the bushing receiving hole 45. The outer diameter of the sliding bushing 48 is the same as the inner diameter of the bushing receiving hole 45, and the inner diameter is the same as the outer diameter of the guide shoe shaft 20. The inner diameter of the second through hole 46 is the same as the outer diameter of the guide shoe shaft 20. The front and rear ends of the compensating spring 47 abut against the rear end of the spring seat 30 and the bottom of the second receiving hole 44, respectively. Preferably, the rear end of the spring seat 30 is recessed inward to form a limiting groove 25 corresponding to the position of the compensating spring 47, for the abutment and limiting of the front end of the compensating spring 47.

[0036] The second boss 43 is preferably a square boss, combined with Figure 6 and Figure 7 As shown, the upper surface of the second protrusion 43 is provided with longitudinal teeth 49 and is equipped with a toothed plate 50 that meshes with them; furthermore, the teeth 49 are in the shape of right-angled triangles, and the front side of each tooth is perpendicular to the horizontal plane. Preferably, the rear side of each tooth has an angle of 20° with the horizontal plane; correspondingly, the lower surface of the toothed plate 50 is also provided with teeth, which are also in the shape of right-angled triangles, and the rear side of each tooth is perpendicular to the horizontal plane, so that the two mesh with each other.

[0037] Furthermore, the upper surface of the first boss 32 of the spring seat 30 is flush with the upper surface of the toothed plate 50 that engages with the second boss 43 of the guide shoe bracket 40, and they are connected above each other by the connecting elastic piece 60. Preferably, as Figure 2As shown, multiple fixing holes are provided on the upper surface of the first boss 32 and the upper surface of the toothed plate 50. A corresponding number of fixing holes are also provided on the connecting elastic piece 60. The two sides of the connecting elastic piece 60 are fixed to the first boss 32 and the toothed plate 50 respectively using fasteners, such as bolts, thereby connecting the two together. Preferably, a washer 4 is added between the connecting elastic piece 60 on the first boss 32 and the bolt. The length of the washer 4 covers the multiple fixing holes on the first boss 32, preferably matching the length of the first boss 32, and the washer 4 also has a corresponding number of fixing holes. Thus, when the bolt fixes the washer 4 and the connecting elastic piece 60 to the first boss 32, it strengthens the fixing effect of the bolt and balances the force among the multiple bolts.

[0038] Furthermore, the rear end of the guide shoe shaft 20 passes sequentially through the buffer spring 34 in the first receiving hole 33, the first through hole 35, the compensating spring 47 in the second receiving hole 44, the second through hole 46, and the sliding bushing 48 in the bushing receiving hole 45, and a limiting plate 23 is fixed at the rear end to prevent the guide shoe shaft 20 from coming out. Preferably, a second threaded hole 24 is provided on the rear end face of the guide shoe shaft 20, and a corresponding fixing hole is provided on the limiting plate 23. The limiting plate 23 is fixed to the rear end of the guide shoe shaft 20 by a fastener, such as a screw 3.

[0039] Furthermore, the first through hole 35 and the guide shoe shaft 20 are clearance fit, the second through hole 46 and the guide shoe shaft 20 are clearance fit, and the sliding bushing 48 and the guide shoe shaft 20 are interference fit.

[0040] Combination Figure 2 and Figure 3 As shown, the guide shoe seat 10 has cover plates 16 at both the upper and lower ends of the guide shoe receiving groove 12. Fixing holes 2 are provided on both the upper and lower end faces of the guide shoe seat 10 and on the cover plates 16. The outer edge of the cover plates 16 has a folded edge 17. Correspondingly, as... Figure 4 As shown, the upper and lower outer edges of the groove 14 of the boot liner 13 are provided with notches 15. The size of the notches 15 is adapted to the cross-sectional size of the folded edge 17. The cover plate 16 is fixed to the upper and lower ends of the guide shoe seat 10 by fasteners, such as screws. The folded edge 17 fits into the notches 15 of the groove 14, thereby limiting and fixing the boot liner 13 in the guide shoe receiving groove 12.

[0041] like Figure 6 As shown, the support body 41 of the guide shoe bracket 40 is connected to the base plate 42 by a vertical plate 5, and triangular plates 6 are added on both sides of the vertical plate 5 to strengthen the overall structural strength.

[0042] The working principle of the elevator car sliding guide shoe of this utility model is as follows: The elevator car sliding guide shoe is bolted to the elevator car through the fixing holes 2 on the base plate 42 of the guide shoe bracket 40. During installation, the groove 14 of the shoe liner 13 inside the guide shoe seat 10 engages with the fixed guide rail on the shaft wall, ensuring that the buffer spring 34 has a certain amount of compression. At the same time, the meshing position of the toothed plate 50 and the toothed row 49 on the guide shoe bracket 40 is adjusted so that the compensating spring 47 is also compressed. When the elevator car moves up and down, the buffer spring 34 pushes the guide shoe shaft 20 forward through the annular boss 22 on the guide shoe shaft 20. Since the guide shoe shaft 20 and the guide shoe seat 10 are connected as one piece by threads, the shoe liner 13 installed in the guide shoe seat 10 will press against the surface of the fixed guide rail under the action of the buffer spring 34, eliminating the gap between the two and playing a buffering and vibration absorption role. For the deformation of parts such as the guide rail, the compression of the buffer spring 34 can also be used to avoid the occurrence of movement interference and jamming between parts.

[0043] The teeth 49 on the upper surface of the second protrusion 43 of the guide shoe bracket 40 mesh with the teeth on the lower part of the toothed plate 50. Since the rear tooth surface of the teeth on the lower part of the toothed plate 50 is perpendicular to the horizontal plane, the toothed plate 50 can only move forward relative to the guide shoe bracket 40 and cannot move backward. Consequently, the position of the spring seat 30, which is fixed by the connecting elastic plate 60, cannot move backward. When the surface of the shoe liner 13 wears and the gap between it and the guide rail increases, the pressure of the buffer spring 34 decreases, and the spring seat 30 moves forward under the action of the compensating spring 47. The connecting elastic plate 60, which is fixed to the upper end of the spring seat 30, drives the toothed plate 50 to move forward relative to the guide shoe bracket 40. At this time, the elastic deformation of the connecting elastic plate 60 allows the toothed plate 50 to lift upward. After the toothed plate 50 moves forward a certain distance under the action of the compensating spring 47, the teeth 49 on the upper surface of the second protrusion 43 of the guide shoe bracket 40 can mesh with the teeth on the lower part of the toothed plate 50 again due to the downward pressure of the connecting elastic plate 60. The teeth on the toothed plate 50 have vertical edges on the rear side, forming a ratchet effect. The toothed plate 50 can only move forward and not backward relative to the guide shoe bracket 40, thereby locking the forward movement position of the spring seat 30, compensating for the wear of the shoe liner 13 surface, maintaining the distance between the shoe liner 13 and the guide rail surface, and maintaining the buffering capacity of the buffer spring 34.

[0044] The function of the sliding bushing 48 is to reduce the resistance to the movement of the guide shoe shaft 20 during operation, while the function of the limiting plate 23 is to prevent the guide shoe shaft 20 from coming off from the rear.

Claims

1. A sliding guide shoe for an elevator car, characterized in that, It includes a guide shoe seat (10), a cylindrical guide shoe shaft (20) connected to the front end of the guide shoe seat (10), a spring seat (30) and a guide shoe bracket (40) sequentially mounted on the guide shoe shaft (20) on the rear side of the guide shoe seat (10), and a connecting elastic piece (60) connecting the spring seat (30) and the guide shoe bracket (40) above.

2. The elevator car sliding guide shoe according to claim 1, characterized in that, The guide shoe seat (10) has a first threaded hole (11) on its rear end face and a shoe liner receiving groove (12) on its front end, and a shoe liner (13) is fixed therein; the shoe liner (13) has a groove (14) with the same width as the car guide rail, which is used to cooperate with the car guide rail to restrict the car to move only in the up and down direction. The front end of the guide shoe shaft (20) is provided with an external thread (21) that is compatible with the first threaded hole (11) of the guide shoe seat (10). The rear end of the external thread is provided with an annular boss (22). The external thread (21) of the guide shoe shaft (20) is screwed into the first threaded hole (11) of the guide shoe seat (10) and locked by a fixing nut, thereby connecting the guide shoe shaft (20) and the guide shoe seat (10) into one unit.

3. The elevator car sliding guide shoe according to claim 2, characterized in that, The spring seat (30) includes a cylindrical spring seat body (31). The front end of the spring seat body (31) is provided with a first receiving hole (33) and a buffer spring (34) is provided therein. The bottom of the first receiving hole (33) is provided with a first through hole (35). The diameter of the first through hole (35) is the same as the outer diameter of the guide shoe shaft (20). The front and rear ends of the buffer spring (34) abut against the annular boss (22) and the bottom of the first receiving hole (33), respectively. The guide shoe bracket (40) includes a cylindrical bracket body (41). The front end of the bracket body (41) is provided with a second receiving hole (44), and the rear end is provided with a bushing receiving hole (45), and the two are connected through a second through hole (46). The second receiving hole (44), the bushing receiving hole (45), and the second through hole (46) are coaxial, and their axes coincide with the axis of the first through hole (35) of the spring seat (30). A patch is provided in the second receiving hole (44). The compensating spring (47) has a sliding bushing (48) inside the bushing receiving hole (45). The sliding bushing (48) is cylindrical, and its outer diameter is the same as the inner diameter of the bushing receiving hole (45). Its inner diameter is the same as the outer diameter of the guide shoe shaft (20). The inner diameter of the second through hole (46) is the same as the outer diameter of the guide shoe shaft (20). The front and rear ends of the compensating spring (47) abut against the rear end of the spring seat (30) and the bottom of the second receiving hole (44), respectively. The rear end of the guide shoe shaft (20) passes sequentially through the buffer spring (34) in the first receiving hole (33), the first through hole (35), the compensation spring (47) in the second receiving hole (44), the second through hole (46), and the sliding bushing (48) in the bushing receiving hole (45), and a limiting plate (23) is fixed at the rear end to prevent the guide shoe shaft (20) from coming out.

4. The elevator car sliding guide shoe according to claim 3, characterized in that, The rear end of the spring seat (30) is recessed inward to form a limiting groove (25) corresponding to the position of the compensation spring (47), so as to be used for the top and limiting of the front end of the compensation spring (47).

5. The elevator car sliding guide shoe according to claim 3, characterized in that, The first through hole (35) and the guide shoe shaft (20) are clearance fit, the second through hole (46) and the guide shoe shaft (20) are clearance fit, and the sliding bushing (48) and the guide shoe shaft (20) are interference fit.

6. The elevator car sliding guide shoe according to claim 3, characterized in that, The guide shoe shaft (20) has a second threaded hole (24) on its rear end face, and the limiting plate (23) has a corresponding fixing hole. The limiting plate (23) is fixed to the rear end of the guide shoe shaft (20) by a fixing member.

7. The elevator car sliding guide shoe according to claim 3, characterized in that, The guide shoe bracket (40) also includes a base plate (42) connected to the bottom of the bracket body (41). The base plate (42) has several fixing holes and is connected and fixed to the elevator car through fasteners.

8. The elevator car sliding guide shoe according to claim 7, characterized in that, The main body (41) of the guide shoe bracket (40) is connected to the base plate (42) by a vertical plate (5), and triangular plates (6) are added on both sides of the vertical plate (5) to strengthen the overall structural strength.

9. The elevator car sliding guide shoe according to claim 3, characterized in that, The spring seat (30) also includes a first boss (32) located on the top of the spring seat body (31); The guide shoe bracket (40) also includes a second boss (43) located on the top of the bracket body (41). The upper surface of the second boss (43) is provided with longitudinal teeth (49) and is equipped with a toothed plate (50) that meshes with it. The teeth (49) are in the shape of right triangles, and the front side of each tooth is perpendicular to the horizontal plane. Correspondingly, the lower surface of the toothed plate (50) is also provided with teeth, which are also in the shape of right triangles, and the rear side of each tooth is perpendicular to the horizontal plane and meshes with the teeth (49) on the upper surface of the second boss (43). The upper surface of the first boss (32) of the spring seat (30) is flush with the upper surface of the toothed plate (50) that meshes with the second boss (43) of the guide shoe bracket (40), and they are connected above each other by the connecting elastic piece (60).

10. The elevator car sliding guide shoe according to claim 9, characterized in that, Multiple fixing holes are provided on the upper surface of the first boss (32) and the upper surface of the toothed plate (50). A corresponding number of fixing holes are also provided on the connecting elastic piece (60). The two sides of the connecting elastic piece (60) are fixed to the first boss (32) and the toothed plate (50) respectively by the fixing member, thereby connecting the two to each other.

11. The elevator car sliding guide shoe according to claim 10, characterized in that, A pad (4) is added between the connecting elastic piece (60) on the first boss (32) and the fixing member. The length of the pad (4) covers multiple fixing holes on the first boss (32), and a corresponding number of fixing holes are also opened on the pad (4). The pad (4) and the connecting elastic piece (60) are fixed to the first boss (32) by the fixing member.

12. The elevator car sliding guide shoe according to claim 2, characterized in that, The guide shoe seat (10) has cover plates (16) at the upper and lower ends of the guide shoe receiving groove (12). Fixing holes are provided on the upper and lower end faces of the guide shoe seat (10) and on the cover plate (16). The outer edge of the cover plate (16) is provided with a folded edge (17). Correspondingly, the outer edges of the upper and lower ends of the groove (14) of the boot liner (13) are provided with notches (15). The size of the notches (15) is adapted to the cross-sectional size of the folded edge (17). The cover plate (16) is fixed to the upper and lower ends of the guide shoe seat (10) by the fastener. The folded edge (17) fits into the notch (15) of the groove (14), thereby limiting and fixing the boot liner (13) in the guide shoe receiving groove (12).

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