A glass lifter tensioner

Abstract

The application discloses a glass lifter tensioner and relates to the technical field of glass lifters, which comprises a fixed pipe and a movable pipe, a spring is arranged in the fixed pipe, the spring is arranged on one end of the movable pipe, the other end of the movable pipe is provided with a stop groove, a reverse buckle is arranged outside the movable pipe, a locking ring is arranged on the fixed pipe, and the reverse buckle is clamped with the locking ring. In the initial state, the reverse buckle is in an open state, the spring and the movable pipe are sequentially placed in the fixed pipe, the locking ring is moved, the movement of the locking ring causes the reverse buckle to be closed, the locking ring is clamped with the reverse buckle, the reverse buckle is clamped with the stop groove of the movable pipe, the quick installation of the tensioner is realized, the installation is convenient and fast, and the tensioner is convenient to use and has higher practicality.

Description

Technical Field

[0001] This invention relates to the field of glass lifter technology, and more particularly to a glass lifter tensioner. Background Technology

[0002] With the increasing use of frameless car doors, the demand for corresponding frameless window regulators is also growing. Frameless car doors require a micro-raising and micro-lowering function for the glass, which necessitates that the regulator's tensioning system remain consistently taut. Traditional regulator tensioning systems tend to loosen over time, becoming unsuitable for the needs of frameless car doors.

[0003] For example, CN214006881U, published on August 20, 2021, discloses an automatic tensioning device for the steel wire rope of a glass lifter. The device includes an outer sleeve with multiple axially extending openings evenly distributed at one end, forming elastic clips between adjacent openings. Each elastic clip has a locking tooth at its free end. A sleeve cap is engaged in the shaft hole of the outer sleeve, with the opening of the sleeve cap located between the elastic clips of the outer sleeve. An axially extending guide post is provided inside the tube hole of the sleeve cap, leaving space between the guide post and the sleeve cap for installing a compression spring. A compression spring is installed within this space. A through hole is provided at the axis of the guide post for the steel wire rope to pass through. A hollow adjusting rod is fitted with the tube hole of the sleeve cap and slides against the guide post. One end of the hollow adjusting rod abuts against the compression spring, and multiple annular locking tooth grooves are evenly arranged axially on the outer circumference of the other end of the rod. These annular locking tooth grooves cooperate with the locking teeth of the elastic clips to form an automatic tensioning and locking mechanism for the steel wire rope. The elastic clip and anti-reverse tooth of the tensioner disclosed above have a fixed structure, which makes it difficult to adjust their initial positions during use, resulting in poor practicality. Summary of the Invention

[0004] The purpose of this invention is to provide a glass lifter tensioner that is easier to install and more practical. This invention uses a locking ring to engage with a snap-fit ​​piece on the fixed tube, thereby adjusting the position of the snap-fit ​​piece. This facilitates fixing the snap-fit ​​piece after the movable and fixed tubes are installed, making the connection convenient, quick, and easy to use.

[0005] To achieve the above objectives, the technical solution adopted by the present invention to solve its technical problem is: a glass lifter tensioner, comprising a fixed tube and a movable tube, wherein a spring is provided inside the fixed tube, the spring is sleeved on one end of the movable tube, a stop groove is provided at the other end of the movable tube, an inverted buckle is provided outside the movable tube, and a locking ring is provided on the fixed tube, wherein the inverted buckle is engaged with the locking ring.

[0006] As a further embodiment of the present invention, the locking ring is provided with a limiting protrusion, and the buckle is provided with a limiting groove that cooperates with the limiting protrusion.

[0007] As a further embodiment of the present invention, the cross-sectional area of ​​the limiting protrusion is smaller than the cross-sectional area of ​​the limiting groove, and the two ends of the cross-section of the limiting protrusion are provided with inclined surfaces, and the two ends of the cross-section of the limiting groove are provided with inclined surfaces.

[0008] As a further embodiment of the present invention, the locking ring is provided with a guide groove, and the fixing tube is provided with a guide post that cooperates with the guide groove.

[0009] As a further embodiment of the present invention, the undercut piece is provided with an arc-shaped protrusion, the undercut piece is provided with a protrusion, and the fixing tube is provided with a limiting surface that cooperates with the protrusion.

[0010] As a further embodiment of the present invention, the end of the inverted tab is provided with a stop block, the stop block is wedge-shaped, and the cross-section of the stop groove is wedge-shaped.

[0011] As a further embodiment of the present invention, one end of the fixed tube is provided with an extension tube, a sliding tube is provided inside the fixed tube, the movable tube is sleeved on the sliding tube, and a connecting channel is provided inside the extension tube and the sliding tube.

[0012] As a further embodiment of the present invention, the movable tube is provided with a sliding groove that cooperates with the sliding tube, and a through channel is provided on the side of the movable tube away from the sliding groove, and the sliding groove and the through channel are connected by a through groove.

[0013] As a further embodiment of the present invention, the spring is sleeved on the sliding tube, and the movable tube is provided with a stepped surface for the spring to move.

[0014] As a further embodiment of the present invention, the inner diameter of the extension tube gradually increases from the inside to the outside, and the end of the sliding tube and the bottom of the sliding groove are provided with mutually compatible inclined surfaces.

[0015] The beneficial effects of this invention are:

[0016] In the initial state, the inverted plate is in the open state. The spring and the movable tube are placed into the fixed tube in sequence. At this time, the locking ring is moved. The movement of the locking ring causes the inverted plate to close until the locking ring and the inverted plate are engaged. At this time, the inverted plate is engaged with the brake groove of the movable tube, thereby realizing the quick installation of the tensioner. The installation is convenient and quick, easy to use, and more practical.

[0017] The locking ring is fixed to the inverted fastener by the limiting protrusion on the inverted fastener and the limiting groove on the fixing tube. The limiting protrusion and the limiting groove are both inclined at both ends of their cross-sections. The inclined surfaces facilitate the quick assembly and disassembly of the limiting protrusion and the limiting groove when the locking ring is moved.

[0018] The locking ring moves accurately through the cooperation of the guide groove and the guide post, which makes it easy to adjust the angle of the locking ring and ensures that the limiting protrusion and the limiting groove are accurately connected. The guide groove and the guide post prevent the locking ring from rotating, thereby increasing the stability of the locking ring after it is connected to the buckle piece. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the tensioner of the glass lifter of the present invention.

[0020] Figure 2 for Figure 1 A schematic diagram of the working structure of the tensioner of the window regulator.

[0021] Figure 3 for Figure 2 Another perspective structural diagram of the tensioner of the window regulator.

[0022] Figure 4 for Figure 2 A schematic diagram of the cross-sectional structure.

[0023] Figure 5 for Figure 1 A schematic diagram of the cross-sectional structure.

[0024] In the attached diagram: 1-Fixed tube, 2-Locking ring, 3-Spring, 4-Moving tube, 5-Stop groove, 6-Inverted clip, 601-Arc-shaped protrusion, 602-Stop block, 7-Limiting protrusion, 8-Limiting groove, 9-Guide groove, 10-Guide post, 11-Extension tube, 12-Sliding tube, 13-Connecting channel, 14-Slide groove, 15-Through channel, 16-Through groove, 17-Stepped surface, 18-Placement groove, 19-Protrusion, 20-Limiting surface. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0026] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0027] like Figure 1As shown, the tensioner of the glass lifter includes a fixed tube 1 and a movable tube 4. A spring 3 is provided inside the fixed tube 1 and is sleeved on one end of the movable tube 4. A stop groove 5 is provided at the other end of the movable tube 4. An inverted buckle 6 is provided outside the movable tube 4. A locking ring 2 is provided on the fixed tube 1. The inverted buckle 6 is engaged with the locking ring 2. In this embodiment, there are two inverted buckles 6. The two inverted buckles 6 are symmetrically arranged on the outside of the fixed tube 1 and are integrally formed with the fixed tube 1. When no external force is applied, the two inverted buckles 6 are in an open state. Specifically, a placement groove 18 is provided on the outside of the fixed tube 1, and the inverted buckle 6 is placed in the placement groove 18. Thus, when the inverted buckle 6 is engaged with the locking ring 2, the inverted buckle 18 will not wobble in its width direction.

[0028] In its natural state, the inverted clip 6 is in the open state. At this time, the spring 3 and the movable tube 4 are placed into the fixed tube 1 in sequence. Then, the locking ring 2 is moved, and the locking ring 2 moves to close the inverted clip 6 until the locking ring 2 and the inverted clip 6 are engaged. At this time, the inverted clip 6 is engaged with the brake groove 5 of the movable tube 4, thereby realizing the installation of the tensioner.

[0029] Specifically, refer to Figure 1 The locking ring 2 is provided with a limiting protrusion 7, and the inverted plate 6 is provided with a limiting groove 8 that cooperates with the limiting protrusion 7. Through the cooperation of the limiting protrusion 7 and the limiting groove 8, the locking ring 2 does not move when the inverted plate 6 is closed, thereby achieving a stable engagement between the inverted plate 6 and the stop groove 5 on the movable tube 4.

[0030] Specifically, the cross-sectional area of ​​the limiting protrusion 7 is smaller than that of the limiting groove 8, which facilitates the easy movement of the limiting protrusion 7 into the limiting groove 8. Both ends of the cross-section of the limiting protrusion 7 and the cross-section of the limiting groove 8 are provided with inclined surfaces. The inclined surfaces facilitate the separation of the limiting protrusion 7 and the limiting groove 8 when the locking ring 2 is moved by the staff, thereby achieving convenient disassembly and assembly.

[0031] Furthermore, the locking ring 2 is provided with a guide groove 9 inside, and the fixed tube 1 is provided with a guide post 10 that cooperates with the guide groove 9 outside. When the locking ring 2 moves, the guide post 10 on the fixed tube 1 and the locking ring 9 move relative to each other. The locking ring 2 can be accurately moved through the cooperation of the guide groove 9 and the guide post 10, so as to facilitate the adjustment of the angle of the locking ring 2, so that the limiting protrusion 7 and the limiting groove 8 are accurately connected. Moreover, the setting of the guide groove 9 and the guide post 10 prevents the locking ring 2 from rotating, thereby increasing the stability of the locking ring 2 after it is connected with the buckle 6.

[0032] Reference Figure 1The inverted fastener 6 has an arc-shaped protrusion 601. After the locking ring 2 moves, it squeezes the arc-shaped protrusion 601 to achieve the rapid closing of the inverted fastener 6. The inverted fastener 6 has a protrusion 19. The fixed tube 1 has a limiting surface 20 that cooperates with the protrusion 19. When the inverted fastener 6 is close to the fixed tube 1, the protrusion 19 moves into the limiting surface 20. The limiting surface 20 limits the protrusion 19 along the axial direction of the fixed tube 1, thereby preventing the inverted fastener 6 from moving.

[0033] Reference Figure 1 The end of the inverted clip 6 is provided with a stop block 602. The stop block 602 is wedge-shaped, and the cross section of the stop groove 5 is wedge-shaped. The stop block 602 and the stop groove 5 cooperate to limit the movement of the movable tube 4. When the movable tube 4 moves under the action of the wire rope, the stop block 602 and the stop groove 5 slowly move relative to each other due to the elastic force of the spring 3 until the stop block 602 moves into the next stop groove 5.

[0034] Reference Figure 1 One end of the fixed tube 1 is provided with an extension tube 11, and a sliding tube 12 is provided inside the fixed tube 1. The movable tube 4 is sleeved on the sliding tube 12. The extension tube 11 and the sliding tube 12 are provided with a connecting channel 13. The wire rope passes through the connecting channel 13 of the extension tube 11 and the sliding tube 12, and passes through the movable tube 4. When the wire rope drives the movable tube 4 to move, the movable tube 4 and the sliding tube 12 sway relative to each other. The sliding tube 12 guides the movement of the movable tube 4.

[0035] The movable tube 4 is provided with a sliding groove 14 that cooperates with the sliding tube 12. The movable tube 4 is provided with a through channel 15 on the side away from the sliding groove 14. The sliding groove 14 and the through channel 15 are connected by a through groove 16. Specifically, the wire rope passes through the sliding groove 14, the through groove 16 and the through channel 15. In this embodiment, the diameter of the through groove 16 is smaller than the diameter of the sliding groove 14 and the through channel 15.

[0036] Spring 3 is sleeved on sliding tube 12. Stepped surface 17 is provided on movable tube 4 for spring 3 to move. Spring 3 is limited by stepped surface 17. When movable tube 4 moves, stepped surface 17 squeezes spring 3, thereby realizing elastic support of spring 3 for movable block 4.

[0037] The inner diameter of the extension tube 11 gradually increases from the inside to the outside, which facilitates the movement of the wire rope into the extension tube 11 during wire rope installation. The end of the sliding tube 12 and the bottom of the groove 14 are provided with mutually compatible inclined surfaces. The inclined surfaces protect the sliding tube 12 when it collides in the groove 14, preventing damage to the sliding tube 12 and the movable tube 4 after the collision.

[0038] In summary, when the tensioner is in use: When the glass is raised, the upper steel wire rope tightens, and the lower steel wire rope tensioning system loosens. At this time, under the action of spring 3, the movable tube 4 slides outward and pushes the end of the brake block 602 of the inverted plate 6 on the fixed tube 1 outward through the wedge-shaped sliding surface of the stop groove 5 on the movable tube 4. When the tip of the brake block 602 at the end of the fixed tube 1 passes the tooth tip of the stop groove 5 on the movable tube 4, it returns to the closed state under the action of the rebound force of the inverted plate 6 on the fixed tube 1. When the glass is lowered, the lower steel wire rope is tightened. At this time, the stop surface of the brake block 602 of the inverted plate 6 on the fixed tube 1 and the stop surface of the stop groove 5 on the movable tube 4 fit tightly together, and the inverted plate 6 of the fixed tube 1 retracts inward. At this time, the limiting protrusion 7 and the limiting groove 8 of the inverted plate 6 of the fixed tube 1 contact each other, so that the inverted plate 6 of the fixed tube 1 cannot retract inward, thus preventing the movable tube 4 from moving inward. Repeat the above process when the system loosens again.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tensioner for a glass lifter, characterized in that, The device includes a fixed tube (1) and a movable tube (4). A spring (3) is provided inside the fixed tube (1). The spring (3) is sleeved on one end of the movable tube (4). A stop groove (5) is provided at the other end of the movable tube (4). A buckle plate (6) is provided outside the movable tube (4). A locking ring (2) is provided on the fixed tube (1). The buckle plate (6) is engaged with the locking ring (2). A limiting protrusion (7) is provided on the locking ring (2). A limiting groove (8) is provided on the buckle plate (6) to cooperate with the limiting protrusion (7). The cross-sectional area of ​​the limiting protrusion (7) is smaller than the cross-sectional area of ​​the limiting groove (8). The limiting protrusion (7) has inclined surfaces at both ends of its cross section, and the limiting groove (8) has inclined surfaces at both ends of its cross section; the locking ring (2) has a guide groove (9) inside, and the fixing tube (1) has a guide post (10) that cooperates with the guide groove (9) outside; the buckle (6) has an arc-shaped protrusion (601) on its side, the buckle (6) has a protrusion (19) on its side, and the fixing tube (1) has a limiting surface (20) that cooperates with the protrusion (19); the end of the buckle (6) has a stop block (602), the stop block (602) is wedge-shaped, and the cross section of the stop groove (5) is wedge-shaped.

2. The tensioner for the glass lifter according to claim 1, characterized in that, One end of the fixed tube (1) is provided with an extension tube (11), and a sliding tube (12) is provided inside the fixed tube (1). The movable tube (4) is sleeved on the sliding tube (12), and a connecting channel (13) is provided inside the extension tube (11) and the sliding tube (12).

3. The tensioner for the glass lifter according to claim 2, characterized in that, The movable tube (4) is provided with a sliding groove (14) that cooperates with the sliding tube (12). The movable tube (4) is provided with a through channel (15) on the side away from the sliding groove (14). The sliding groove (14) and the through channel (15) are connected by a through groove (16).

4. The tensioner for the glass lifter according to claim 2, characterized in that, The spring (3) is sleeved on the sliding tube (12), and the movable tube (4) is provided with a stepped surface (17) for the spring (3) to move.

5. The glass lifter tensioner according to any one of claims 2-4, characterized in that, The inner diameter of the extension tube (11) gradually increases from the inside to the outside, and the end of the sliding tube (12) and the bottom of the groove (14) are provided with mutually compatible inclined surfaces.

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