Anti-falling tensioning guide rail

Abstract

The utility model relates to an anti-dropping tensioning guide rail in the technical field of electric guide rails, which comprises a guide pulley block, a stabilizing pulley block and a guide rail frame, the upper edge of the guide rail frame is a guide rail groove, the lower edge of the guide rail frame is a long-strip-shaped stroke cavity, and the guide pulley block comprises a plurality of vertically arranged first pulleys. The surface of each first pulley is an inwards-sunken embedded arc groove, the first pulleys vertically rotate in cooperation with the arc protrusions through the embedded arc grooves, the stabilizing pulley block comprises a plurality of second pulleys, the surfaces of the second pulleys are of a plane structure, and the surfaces of the second pulleys rotationally abut against the inner wall of the stroke cavity. The POM material rubber coating layer is arranged on the surface of the first pulley, shaking between the pulley block and the guide rail frame can be effectively reduced, the situation that the pulley block derails is avoided, and meanwhile the silence performance is good, operation is silent and stable, lubricating oil is not needed, and dust prevention and jumping prevention are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric guide rails, in particular to an anti - detachment and tensioning guide rail. Background Technique

[0002] The guide rail, also known as the slide rail, linear guide rail, and linear slide rail, is used in occasions of linear reciprocating motion. It has a higher rated load than linear bearings and can bear a certain torque, enabling high - precision linear motion under high - load conditions.

[0003] Existing guide rails applied to furniture pay attention to their stability to prevent the doors or objects carried by the guide rails from derailing, and have solved the problems of the double - axis core track in the market, such as running jamming, loud noise, and easy rusting of the chrome - plated axis over a long time. Therefore, in view of these current situations, there is an urgent need to develop an anti - detachment and tensioning guide rail to meet the actual use needs. Summary of the Invention

[0004] The purpose of the utility model is to solve the above - mentioned defects and provide an anti - detachment and tensioning guide rail.

[0005] In order to solve the above - mentioned technical problems, the utility model adopts the following technical scheme:

[0006] An anti - detachment and tensioning guide rail includes a guiding pulley group and a guide rail frame. The upper edge of the guide rail frame is a guide rail groove, and both sides of the guide rail groove are arc - shaped protrusions protruding inwards. The guiding pulley group includes several vertically arranged first pulleys. The surface of the first pulley is an inward - concave fitting arc groove. The first pulley is vertically fitted and rotated with the arc - shaped protrusion through the fitting arc groove, and a POM - material rubber - coated layer is provided on the surface of the first pulley.

[0007] In the above description, as a further scheme, it further includes a stabilizing pulley group. A long - strip - shaped travel cavity is further provided at the lower edge of the guide rail frame. A connecting bracket is provided between the guiding pulley group and the stabilizing pulley group for combined fixation. The stabilizing pulley group includes several second pulleys. The surface of the second pulley is a planar structure. The second pulley is horizontally arranged inside the travel cavity, and the surface of the second pulley is rotatably abutted against the inner wall of the travel cavity.

[0008] In the above description, as a further scheme, the radian of the arc - shaped protrusion is smaller than the radian of the fitting arc groove, and the horizontal trajectory of the guide rail frame is an arc - shaped structure.

[0009] In the above description, as a further scheme, the inside of the connecting bracket further includes a driving part. The driving part includes a synchronous wheel and a servo motor. The synchronous wheel is horizontally and rotatably connected to the bottom of the connecting bracket through the servo motor, and a horizontally arranged rack is provided on the outer wall of the travel cavity. The synchronous wheel is meshed with the rack for transmission.

[0010] In the above description, as a further solution, a clearance opening is provided in the middle of the connecting bracket, and one side of the synchronous wheel passes through the clearance opening to engage with the rack.

[0011] In the above description, as a further solution, the guide pulley group also includes a mounting block, a mounting pin is provided at the center of the first pulley, the first pulley is rotatably connected to one end surface of the mounting block through the mounting pin, and the end surface of the mounting block away from the first pulley is fixedly connected to the top of the connecting bracket.

[0012] In the above description, as a further solution, a deep groove ball bearing is provided at the center of the first pulley, a limit screw is provided at one end of the mounting pin, and the first pulley is rotatably sleeved on one end of the mounting pin close to the limit screw through the deep groove ball bearing.

[0013] In the above description, as a further solution, an engaging groove is opened on one end face of the mounting block away from the first pulley, a fixing nut is arranged inside the engaging groove, and one end of the mounting pin away from the first pulley passes through the engaging groove and is threadedly fixed to the fixing nut.

[0014] The beneficial effects produced by the utility model are as follows:

[0015] The anti-dropping tensioning guide rail of the present application is provided with a guide pulley group and a stabilizing pulley group, which respectively cooperate with the guide groove and the travel cavity of the guide rail frame to form an anti-dropping structure for tensioning left and right and up and down, which can effectively reduce the shaking between the pulley group and the guide rail frame and avoid the derailment of the pulley group. At the same time, it has good silent performance, runs quietly and stably, does not require lubricating oil, and is dust-proof and anti-jumping. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of an anti-drop tensioning guide rail according to the utility model;

[0017] Figure 2 It is a side view schematic diagram of an anti-dropping tensioning guide rail structure of the utility model;

[0018] Figure 3 for Figure 2 A is a schematic diagram of the partially enlarged structure of the middle part;

[0019] Figure 4 It is a structural schematic diagram of the guide pulley block described in the utility model;

[0020] Figure 5 It is a three-dimensional structural schematic diagram of an anti-drop tensioning guide rail according to the utility model;

[0021] Figure 6 It is a front view structural schematic diagram of an anti-dropping tensioning guide rail described in the utility model;

[0022] Figure 7 Side view structural schematic diagram of an anti - detachment and tensioning guide rail according to the present utility model:

[0023] In the figure: 1 - guiding pulley set, 111 - first pulley, 11 - fitting arc groove, 12 - mounting pin, 121 - limit screw, 13 - bearing, 14 - mounting block, 141 - fitting groove, 15 - fixing nut, 2 - stabilizing pulley set, 21 - second pulley, 22 - synchronous pulley, 23 - servo motor, 3 - connecting bracket, 31 - clearance opening, 4 - guide rail frame, 41 - guide rail groove, 411 - arc - shaped protrusion, 42 - stroke cavity, 421 - rack. Specific implementation mode

[0024] For the convenience of understanding by those skilled in the art, the present utility model will be further described below in conjunction with embodiments and the accompanying drawings. The content mentioned in the implementation mode does not limit the present utility model. The present utility model will be described in detail below with reference to the accompanying drawings.

[0025] Please refer to Figure 1-4 , a specific implementation of an anti - detachment and tensioning guide rail thereof, includes a guiding pulley set 1, a stabilizing pulley set 2 and a guide rail frame 4. The upper edge of the guide rail frame 4 is a guide rail groove 41, and both sides of the guide rail groove 41 are arc - shaped protrusions 411 protruding inwards. The lower edge of the guide rail frame 4 is a strip - shaped stroke cavity 42. The guiding pulley set 1 and the stabilizing pulley set 2 are tensioned and fixedly combined by a connecting bracket 3. The guiding pulley set 1 includes a plurality of vertically arranged first pulleys 11. The surface of the first pulley 11 is an inward - concave fitting arc groove 111. The first pulley 11 is vertically matched and rotated with the arc - shaped protrusion 411 through the fitting arc groove 111. The stabilizing pulley set 2 includes a plurality of second pulleys 21. The surface of the second pulley 21 is a flat structure. The second pulley 21 is horizontally arranged inside the stroke cavity 42, and the surface of the second pulley 21 is rotatably abutted against the inner wall of the stroke cavity 42. The surface of the first pulley 11 is provided with a POM material rubber - coated layer.

[0026] The inside of the connecting bracket 3 further includes a driving part. The driving part includes a synchronous pulley 22 and a servo motor 23. The synchronous pulley 22 is horizontally and rotatably connected to the bottom of the connecting bracket 3 through the servo motor 23. And a horizontally arranged rack 421 is provided on the outer wall of the stroke cavity 42. The synchronous pulley 22 is engaged and driven with the rack 421. A clearance opening 31 is provided in the middle of the connecting bracket 3. One side of the synchronous pulley 22 passes through the clearance opening 31 and is engaged with the rack 421.

[0027] In a preferred solution, the curvature of the arc-shaped protrusion 411 is smaller than the curvature of the embedded arc groove 111. In a curved guide structure, by making the curvature of the arc-shaped protrusion 411 smaller than the curvature of the embedded arc groove 111, a space for the first pulley 11 to be offset can be reserved at the arc-shaped moving corner, so that the first pulley 11 can move smoothly in the guide rail groove 41 of the arc track. In some cases, the horizontal track of the guide rail frame 4 can be an arc-shaped structure to form a slide rail that can be used for an arc-shaped or S-shaped track.

[0028] Specifically, the guide pulley group 1 also includes a mounting block 14, a mounting pin 12 is provided at the center of the first pulley 11, the first pulley 11 is rotatably connected to one end surface of the mounting block 14 through the mounting pin 12, and the end surface of the mounting block 14 away from the first pulley 11 is fixedly connected to the top of the connecting bracket 3, a deep groove ball bearing 13 is provided at the center of the first pulley 11, and a limit screw 121 is provided at one end of the mounting pin 12. The first pulley 11 is rotatably sleeved on one end of the mounting pin 12 close to the limit screw 121 through the deep groove ball bearing 13, an end surface of the mounting block 14 away from the first pulley 11 is provided with an embedding groove 141, and a fixing nut 15 is provided inside the embedding groove 141, and the end of the mounting pin 12 away from the first pulley 11 passes through the embedding groove 141 and is threadedly fixed to the fixing nut 15.

[0029] The advantages of an anti-drop tensioning guide rail are that a guide pulley block 1 and a stabilizing pulley block 2 are provided to cooperate with the guide groove 41 and the travel cavity 42 of the guide rail frame 4 respectively, forming an anti-drop structure for left and right and up and down tensioning, which can effectively reduce the shaking between the pulley block and the guide rail frame 4, and avoid the derailment of the pulley block. At the same time, it has good silent performance, runs quietly and stably, does not require lubricating oil, and is dust-proof and anti-jumping.

[0030] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the utility model, which does not depart from the content of the technical solution of the utility model, belongs to the scope of the technical solution of the utility model.

Claims

1. An anti-loosening and tensioning guide rail, comprising a guide pulley set and a guide rail frame, characterized in that: The upper edge of the guide rail frame is a guide rail groove, and both sides of the guide rail groove are arc-shaped protrusions protruding inwards. The guide pulley group includes a number of vertically arranged first pulleys. The surface of the first pulley is an inwardly concave fitting arc groove. The first pulley is vertically matched and rotated with the arc-shaped protrusion through the fitting arc groove. The surface of the first pulley is provided with a POM material rubber coating layer.

2. The anti-loosening tensioning guide rail according to claim 1, wherein: It further includes a stabilizing pulley group. A long strip-shaped travel cavity is also provided at the lower edge of the guide rail frame. A connecting bracket is provided between the guide pulley group and the stabilizing pulley group for combined fixation. The stabilizing pulley group includes a number of second pulleys. The surface of the second pulley is a flat structure. The second pulley is horizontally arranged inside the travel cavity, and the surface of the second pulley is rotatably abutted against the inner wall of the travel cavity.

3. The anti-loosening tensioning guide rail according to claim 1, characterized in that: The radian of the arc-shaped protrusion is smaller than the radian of the fitting arc groove, and the horizontal trajectory of the guide rail frame is an arc-shaped structure.

4. The anti - detachment tensioning guide rail according to claim 2, characterized in that: The interior of the connecting bracket further includes a driving part. The driving part includes a synchronous pulley and a servo motor. The synchronous pulley is horizontally and rotatably connected to the bottom of the connecting bracket through the servo motor. A horizontally arranged rack is provided on the outer wall of the travel cavity, and the synchronous pulley is engaged with the rack for transmission.

5. The anti - detachment tensioning guide rail according to claim 4, characterized in that: A clearance opening is provided in the middle of the connecting bracket, and one side of the synchronous pulley passes through the clearance opening to be engaged with the rack.

6. The anti-loosening and tensioning guide rail according to claim 1, characterized in that: The guide pulley group further includes a mounting block. A mounting pin is provided at the center of the first pulley. The first pulley is rotatably connected to one end face of the mounting block through the mounting pin. The end face of the mounting block away from the first pulley is fixedly connected to the top of the connecting bracket.

7. The anti-loosening tensioning guide rail according to claim 6, characterized in that: A deep groove ball bearing is provided at the center of the first pulley. A limit screw is provided at one end of the mounting pin. The first pulley is rotatably sleeved on the end of the mounting pin close to the limit screw through the deep groove ball bearing.

8. The anti-slip tensioning guide rail according to claim 7, characterized in that: A fitting groove is provided on the end face of the mounting block away from the first pulley. A fixing nut is provided inside the fitting groove. The end of the mounting pin away from the first pulley passes through the fitting groove and is threadedly fixed to the fixing nut.

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