Double-wheel damping guide shoe

Abstract

The utility model discloses a double-wheel damping guide shoe which comprises a guide shoe bottom plate (1), a first rolling wheel (2), a second rolling wheel (3), a first connecting rod (4) and a second connecting rod (5). The first connecting end and the third connecting end are respectively provided with an elastic device, the elastic force direction of the elastic devices faces the inner side, the first rolling wheel (2) and the second rolling wheel (3) are symmetrically arranged, a channel for an elevator guide rail to pass through is formed between the first rolling wheel (2) and the second rolling wheel (3), and the first connecting rod (4) and the second connecting rod (5) are levers with power arms and resisting arms on the same side. And the inner sides of the first roller (2) and the second roller (3) enable the side walls to cling to an elevator guide rail and transversely move along the direction vertical to the elevator guide rail through respective elastic devices. According to the guide shoe, the idler wheel is installed on the lever, and the elastic device is additionally arranged, so that the idler wheel can be better attached to the guide rail, and damping and buffering can be facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator parts, and specifically relates to a double-wheel shock-absorbing guide shoe. Background Art

[0002] Currently, a roller guide shoe shock-absorbing device is disclosed, which includes a saddle, a mounting seat and a second roller seat. A plug-in port is provided in the middle of the rear end of the saddle. Plug-in plates integrally formed therewith are provided on both sides of the front end of the mounting seat. The plug-in plates are inserted into the inside of the saddle through the plug-in port. A card slot for inserting the first roller seat is provided on the side wall of the plug-in plate. Buffer pads are provided above and below the front and rear sides of the card slot. A main support roller is movably installed in the first roller seat. The mounting seat is fixed to the rear end of the saddle by a first bolt. An auxiliary support roller is movably installed in the second roller seat. A connecting block is connected to the rear end of the second roller seat. L-shaped brackets are provided on both sides of the saddle. The connecting block is inserted into the L-shaped brackets. A long bolt on the L-shaped bracket is sleeved with a buffer spring and then penetrates through a corresponding hole on the connecting block, and finally the long bolt is screwed to the side wall of the saddle. Connecting frames are provided at the upper and lower ends of the rear part of the saddle. The connecting frames are integrally formed with the saddle, and the connecting frames are fixedly connected to the side of the car by second bolts. A sliding groove is provided on the inner side edge of the saddle. A sliding projection integrally formed therewith is provided on the outer side of the plug-in plate. The sliding projection is slidably connected in the corresponding sliding groove. The auxiliary support roller and the main support roller have the same model, and a shock-absorbing rubber washer is sleeved on the outer side thereof. The saddle and the L-shaped brackets are integrally formed. Through the setting of the buffer spring, when the auxiliary support roller is pressed, a buffering effect can be achieved, avoiding excessive friction between the auxiliary support roller and the guide rail and generating noise. And under the elastic force of the buffer spring, the auxiliary support roller can always be closely attached to the side wall of the guide rail. The buffer spring of this structure only plays a buffering role, and the up-and-down positions of the support rollers on both sides are fixed, and the lateral position, so that the swing amplitude and swing position of the support rollers are limited, and the flexibility is poor.

[0003] There is also disclosed a roller type guide shoe for an elevator, including a bottom plate. One side of the top end of the bottom plate is fixedly connected with two vertical plates. There is a placement opening between the two vertical plates, and rectangular openings are respectively penetrated through the surfaces of the two vertical plates. A tension spring is fixedly connected to the inner wall of the rectangular opening. The other end of the tension spring is fixedly connected with a stabilizing seat. The other end of the stabilizing seat is fixedly connected with an auxiliary spring. The other end of the auxiliary spring is fixedly connected with a connecting plate. The other side of the connecting plate is movably connected with an adjusting bolt, and the other end of the adjusting bolt threadedly penetrates through the vertical plate. One side of the stabilizing seat is fixedly connected with a pin. The other end of the pin is movably connected with a side roller. And a support plate connected to the vertical plate is arranged on the top of the bottom plate. A strip-shaped opening is penetrated through the surface of the support plate. A bearing seat is arranged inside the strip-shaped opening. One side of the bearing seat is movably connected with a rotating shaft. A top roller is fixedly connected to the outer wall of the rotating shaft. This structure uses the stabilizing seat and the auxiliary spring to make the roller slide. There is a chance that the stabilizing seat will get stuck during sliding, which will reduce the reliability of the guide shoe. Summary of the Utility Model

[0004] The technical problem to be solved by the present utility model is to provide a double-wheel shock-absorbing guide shoe that installs the roller on a lever and adds an elastic device, which can make the roller better adhere to the guide rail and also helps with shock absorption and buffering.

[0005] The technical solution of the present utility model is to provide a double-wheel shock-absorbing guide shoe with the following structure, which is characterized in that: it includes a guide shoe bottom plate, a first roller, a second roller, a first connecting rod and a second connecting rod; the first roller is arranged in the middle of the first connecting rod. The top of the first connecting rod is movably connected to the first connection end and the bottom is hinged to the second connection end; the second roller is arranged in the middle of the second connecting rod. The top of the second connecting rod is movably connected to the third connection end and the bottom is hinged to the fourth connection end; elastic devices are arranged at both the first connection end and the third connection end, and the elastic force direction of the elastic device is inward. The first roller and the second roller are symmetrically arranged and there is a channel for the elevator guide rail to pass through in the middle. The first connecting rod and the second connecting rod are a lever with the power arm and the resistance arm on the same side. The inner sides of the first roller and the second roller make the side walls closely adhere to the elevator guide rail and move horizontally along the direction perpendicular to the elevator guide rail through their respective elastic devices.

[0006] The first connection end is the swing fulcrum of the first connecting rod, and the first connection end is the swing fulcrum of the second connecting rod.

[0007] Both the first connecting rod and the second connecting rod are arranged parallel to the guide shoe bottom plate with a spacing. Convex blocks are arranged on the inner side walls of the first connecting rod and the second connecting rod. Through holes are arranged on the convex blocks. The rotating shafts of the first roller and the second roller are connected to the corresponding through holes.

[0008] The first connection end and the third connection end are symmetrically arranged along the elevator guide rail, and each includes a first fixed base, a second fixed base, a screw rod and a spring. The first fixed base is vertically installed on the guide shoe bottom plate. The screw rod penetrates through the first fixed base and the second fixed base. The second fixed base, the screw rod and the spring are all located outside the first fixed base. The spring is sleeved on the screw rod and its two ends respectively abut between the second fixed base and the outer end of the screw rod. The second fixed base axially moves on the screw rod. The inner end of the screw rod is screwed onto the first fixed base. The spring provides a thrust force to make the second fixed base approach the first fixed base. The top of the first connecting rod or the second connecting rod is correspondingly installed on the second fixed base.

[0009] The distance between the two first fixed bases is smaller than the distance between the first roller and the second roller.

[0010] The second connection end and the fourth connection end are symmetrically arranged along the elevator guide rail, and each includes a third fixed seat and a fourth fixed seat. The third fixed seat is vertically installed on the guide shoe bottom plate. The fourth fixed seat is vertically installed on the third fixed seat. The bottom of the first connecting rod or the second connecting rod is rotatably connected to the rotating shaft of the fourth fixed seat.

[0011] The inner side of the second fixed base is positioned by two juxtaposed nuts on the screw rod and abuts against one end of the spring. The two nuts are screwed tightly with each other to adjust the pre-tightening force of the spring.

[0012] The first fixed base and the third fixed seat on each side of the elevator guide rail are vertically aligned.

[0013] After adopting the above structure, the utility model has the following advantages:

[0014] 1. The two rollers are respectively installed on the connecting rod. The connecting rod adopts a lever structure and swings along the fulcrum at the bottom, so that the swinging amplitude and position of the roller are wider, that is, the roller can adapt to a larger offset range and can adapt to more complex working conditions.

[0015] 2. A spring is arranged at the top of the connecting rod, so as to provide a certain pre-tightening force for the roller, so that the roller can closely adhere to the elevator guide rail, and can realize rapid reset, and at the same time play a role in buffering and shock absorption to reduce the impact force generated due to the unevenness of the guide rail during the operation of the elevator.

[0016] As an improvement, the first connecting rod and the second connecting rod are both arranged parallel to the guide shoe bottom plate and have a spacing. The inner side walls of the first connecting rod and the second connecting rod are both provided with bumps. Through holes are provided on the bumps. The rotating shafts of the first roller and the second roller are connected to the corresponding through holes, which is convenient for installing the roller while ensuring the strength of the connecting rod.

[0017] As an improvement, the first connection end and the third connection end are symmetrically arranged along the elevator guide rail, and each includes a first fixed base, a second fixed base, a screw rod and a spring. The first fixed base is vertically installed on the guide shoe bottom plate. The screw rod penetrates through the first fixed base and the second fixed base. The second fixed base, the screw rod and the spring are all located outside the first fixed base. The spring is sleeved on the screw rod and its two ends respectively abut between the second fixed base and the outer end of the screw rod. The second fixed base is axially movable on the screw rod. The inner end of the screw rod is screwed on the first fixed base. The spring provides a thrust force to make the second fixed base approach the first fixed base. The top of the first connecting rod or the second connecting rod is correspondingly installed on the second fixed base. This structure enables the roller to better adhere to the guide rail and also helps with shock absorption and buffering.

[0018] As an improvement, the distance between the two first fixed bases is smaller than the distance between the first roller and the second roller, so that there is a greater offset between the first roller and the second roller.

[0019] As an improvement, the second connection end and the fourth connection end are symmetrically arranged along the elevator guide rail, and each includes a third fixed seat and a fourth fixed seat. The third fixed seat is vertically installed on the guide shoe bottom plate. The fourth fixed seat is vertically installed on the third fixed seat. The bottom of the first connecting rod or the second connecting rod is rotatably connected to the rotating shaft of the fourth fixed seat. This structure is simple and reliable.

[0020] As an improvement, the inner side of the second fixed base is positioned by two juxtaposed nuts on the screw rod and abuts against one end of the spring. The two nuts are screwed tightly with each other to adjust the pre-tightening force of the spring, increase the adjustment range, and be applicable to different installation occasions. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the double-wheel shock-absorbing guide shoe of the present utility model.

[0022] Figure 2 It is a split schematic diagram of the double-wheel shock-absorbing guide shoe of the present utility model.

[0023] Figure 3 It is a schematic diagram of a perspective view one of one group of roller structures of the present utility model.

[0024] Figure 4 It is a schematic diagram of a perspective view two of one group of roller structures of the present utility model.

[0025] Figure 5 It is a schematic diagram of a perspective view three of one group of roller structures of the present utility model.

[0026] Figure 6 It is a split schematic diagram of one group of roller structures of the present utility model.

[0027] Figure 7 This is a cross-sectional schematic view of the double-wheel shock-absorbing guide shoe of the present utility model.

[0028] As shown in the figure: 1. Guide shoe bottom plate, 2. First roller, 3. Second roller, 4. First connecting rod, 5. Second connecting rod, 6. Bump, 7. Through hole, 8. First fixed base, 9. Second fixed base, 10. Screw, 11. Spring, 12. Third fixed base, 13. Fourth fixed base, 14. Sliding shoe lining. Specific embodiments

[0029] The present utility model will be further described below in conjunction with the accompanying drawings.

[0030] As Figures 1-7 shown, the double-wheel shock-absorbing guide shoe of the present utility model includes a guide shoe bottom plate 1, a first roller 2, a second roller 3, a first connecting rod 4 and a second connecting rod 5. The first roller 2 and the second roller 3, the first connecting rod 4 and the second connecting rod 5 are symmetrically arranged along the elevator guide rail at the same time, and the elevator guide rail passes through the first roller 2 and the second roller 3.

[0031] The first roller 2 is arranged in the middle of the first connecting rod 4. The top of the first connecting rod 4 is movably connected to the first connection end and the bottom is hinged to the second connection end; the second roller 3 is arranged in the middle of the second connecting rod 5. The top of the second connecting rod 5 is movably connected to the third connection end and the bottom is hinged to the fourth connection end. The first connecting rod 4 and the second connecting rod 5 adopt a lever structure, and the rotation fulcrums are all located at the bottom of the guide shoe bottom plate 1.

[0032] Elastic devices are provided at both the first connection end and the third connection end. The elastic force direction of the elastic device is inward. The first roller 2 and the second roller 3 are symmetrically arranged and there is a channel for the elevator guide rail to pass through in the middle. The first connecting rod 4 and the second connecting rod 5 are levers with the power arm and the resistance arm on the same side. The inner sides of the first roller 2 and the second roller 3 make the side walls closely adhere to the elevator guide rail through their respective elastic devices and move horizontally in the direction perpendicular to the elevator guide rail.

[0033] As Figure 1 、 Figure 2 and Figure 7 shown, the first connection end is the swing fulcrum of the first connecting rod 4, the third connection end is the swing fulcrum of the second connecting rod, and both the first connection end and the third connection end are located at the bottom of the guide shoe bottom plate 1.

[0034] As Figure 1As shown, the first connecting rod 4 and the second connecting rod 5 are both arranged parallel to the guide shoe bottom plate 1 with a spacing therebetween, reducing the friction between the first connecting rod 4 and the second connecting rod 5. The inner side walls of the first connecting rod 4 and the second connecting rod 5 are both provided with bumps 6. The added bumps 6 not only strengthen the overall strength of the connecting rod, but also facilitate the installation of the rollers. Through holes 7 are provided on the bumps 6, and the rotating shafts of the first roller 2 and the second roller 3 are connected to the corresponding through holes 7. After installation, the first roller 2 and the second roller 3 can rotate freely.

[0035] As Figure 1 , 3 -6 shows, the first connection end and the third connection end are symmetrically arranged along the elevator guide rail, and respectively include a first fixing base 8, a second fixing base 9, a screw 10 and a spring 11. The first fixing base 8 is vertically installed on the guide shoe bottom plate 1. The screw 10 passes through the first fixing base 8 and the second fixing base 9. The second fixing base 9, the screw 10 and the spring 11 are all located outside the first fixing base 8. The spring 11 is sleeved on the screw 10 and its two ends respectively abut between the outer ends of the second fixing base 9 and the screw 10. The second fixing base 9 axially moves on the screw 10. The inner end of the screw 10 is screwed tightly on the first fixing base 8. The spring 11 provides a thrust force to make the second fixing base 9 approach the first fixing base 8. The top of the first connecting rod 4 or the second connecting rod 5 is correspondingly installed on the second fixing base 9.

[0036] As Figure 1 and Figure 7 shows, the spacing between the two first fixing bases 8 is smaller than the spacing between the first roller 2 and the second roller 3, so that the spacing between the two first fixing bases 8 provides enough space for the first roller 2 and the second roller 3 to swing.

[0037] As Figure 1 shows, the second connection end and the fourth connection end are symmetrically arranged along the elevator guide rail, and respectively include a third fixing seat 12 and a fourth fixing seat 13. The third fixing seat 12 is vertically installed on the guide shoe bottom plate 1. The fourth fixing seat 13 is vertically installed on the third fixing seat 12. The bottom of the first connecting rod 4 or the second connecting rod 5 is rotatably connected to the rotating shaft of the fourth fixing seat 13.

[0038] The inner side of the second fixing base 9 is positioned by two juxtaposed nuts on the screw 11 and abuts against one end of the spring 11. The two nuts are screwed tightly with each other to adjust the pre-tightening force of the spring 11, and the pre-tightening force directly determines the positioning position of the second fixing base 9 on the screw 11.

[0039] The first fixing bases 8 on each side of the elevator guide rail are vertically aligned, and the third fixing seats 12 on both sides are at the same height, and the third fixing seats 12 on both sides are also at the same height.

[0040] A sliding shoe lining (14) is provided between two first fixed bases 8 and between two third fixed bases 12. In this embodiment, there are two overlapping sliding shoe linings (14).

Claims

1. A double-wheel shock-absorbing guide shoe, characterized in that: The invention comprises a guide shoe bottom plate (1), a first roller (2), a second roller (3), a first connecting rod (4) and a second connecting rod (5); the first roller (2) is arranged at the middle of the first connecting rod (4), the top of the first connecting rod (4) is movably connected to the first connecting end, and the bottom is hinged to the second connecting end; the second roller (3) is arranged at the middle of the second connecting rod (5), the top of the second connecting rod (5) is movably connected to the third connecting end, and the bottom is hinged to the fourth connecting end; the first connecting end and the third connecting end are both provided with elastic devices, the elastic force direction of the elastic devices is inward, the first roller (2) and the second roller (3) are symmetrically arranged and a channel for the elevator guide rail to pass through is provided in the middle, the first connecting rod (4) and the second connecting rod (5) are a lever with a power arm and a resistance arm on the same side, and the inner sides of the first roller (2) and the second roller (3) are respectively elastic devices so that the side walls are closely attached to the elevator guide rail and move laterally in a direction perpendicular to the elevator guide rail.

2. The double-wheel shock-absorbing guide shoe according to claim 1, characterized in that: The first connecting end is a swing fulcrum of the first connecting rod (4), and the third connecting end is a swing fulcrum of the second connecting rod.

3. The double-wheel shock-absorbing guide shoe according to claim 1, characterized in that: The first connecting rod (4) and the second connecting rod (5) are both arranged parallel to the guide shoe base plate (1) and are spaced apart from each other; inner side walls of the first connecting rod (4) and the second connecting rod (5) are both provided with protrusions (6); the protrusions (6) are provided with through holes (7); and the rotating shafts of the first roller (2) and the second roller (3) are connected to the corresponding through holes (7).

4. The double-wheel shock-absorbing guide shoe according to claim 1, characterized in that: The first connection end and the third connection end are symmetrically arranged along the elevator guide rail, and respectively comprise a first fixed base (8), a second fixed base (9), a screw (10) and a spring (11); the first fixed base (8) is vertically mounted on the guide shoe bottom plate (1); the screw (10) passes through the first fixed base (8) and the second fixed base (9); the second fixed base (9), the screw (10) and the spring (11) are all located on the outer side of the first fixed base (8); the spring (11) is sleeved on the screw (10) and its two ends are respectively abutted between the outer ends of the second fixed base (9) and the screw (10); the second fixed base (9) is axially movable on the screw (10); the inner end of the screw (10) is screwed on the first fixed base (8); the spring (11) provides a thrust to make the second fixed base (9) approach the first fixed base (8); and the top of the first connecting rod (4) or the second connecting rod (5) is correspondingly mounted on the second fixed base (9).

5. The double-wheel shock-absorbing guide shoe according to claim 4, characterized in that: The distance between the two first fixed bases (8) is smaller than the distance between the first roller (2) and the second roller (3).

6. The double-wheel shock-absorbing guide shoe according to claim 1 or 4, characterized in that: The second connecting end and the fourth connecting end are symmetrically arranged along the elevator guide rail, and respectively comprise a third fixing seat (12) and a fourth fixing seat (13); the third fixing seat (12) is vertically mounted on the guide shoe bottom plate (1); the fourth fixing seat (13) is vertically mounted on the third fixing seat (12); and the bottom of the first connecting rod (4) or the second connecting rod (5) is rotatably connected to the rotating shaft of the fourth fixing seat (13).

7. The double-wheel shock-absorbing guide shoe according to claim 4, characterized in that: The inner side of the second fixed base (9) is positioned by two parallel nuts on the screw rod (10) and abuts against one end of the spring (11). The two nuts are tightened against each other to adjust the preload force of the spring (11).

8. The double-wheel shock-absorbing guide shoe according to claim 6, characterized in that: The first fixed base (8) and the third fixed base (12) located on each side of the elevator guide rail are aligned vertically.

9. The double-wheel shock-absorbing guide shoe according to claim 6, characterized in that: A sliding shoe liner (14) is provided between the two first fixed bases (8) and between the two third fixed bases (12).

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