Steel cable pre-tightening piece of window glass lifter

Abstract

The utility model discloses a steel cable pre-tightening piece of a glass lifter, which comprises a shell, a wiring hole for a steel cable to penetrate through is formed on the shell, a sliding seat is arranged in the shell in a sliding manner, a threading hole is arranged on the sliding seat, the threading hole and the wiring hole are coaxially arranged, a pre-tightening spring is propped between the sliding seat and the shell, and the pre-tightening spring is connected with the sliding seat in a sliding manner. A plurality of locking grooves are formed in the outer wall of the sliding seat, each locking groove comprises a vertical limiting face and an inclined guiding face, the guiding faces are arranged on the sides close to the pre-tightening springs, a lock catch used for positioning the sliding seat is further arranged in the shell, one end of the lock catch is rotationally connected into the shell, and the other end of the lock catch is rotationally connected into the shell. A clamping nozzle is formed at the other end of the lock catch and is arranged in the lock groove; and a collision torsional spring for keeping the clamping nozzle in the lock groove is also arranged between the lock catch and the shell. The steel cable tensioning device is simple in structure and reasonable in overall layout, effectively achieves tensioning of a steel cable and has a good using effect.

Description

Technical Field

[0001] The utility model relates to a steel cable pre-tightening component of a glass lifter. Background Art

[0002] With the rapid development of the automotive industry, consumers have become more demanding of their vehicles' appearance. A new type of frameless car has emerged on the market and is gaining widespread popularity. In frameless cars, the window glass must drop a certain distance when the door is opened, otherwise it will damage the door groove. However, the steel cable of the window lifter will lengthen after a period of operation. If the cable cannot maintain its pretension, the lifter will continue to operate in the same manner, affecting the window lift efficiency and causing damage to the door groove when the door is opened. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a steel cable pre-tensioning component for a glass lifter, which has a simple structure, a reasonable overall layout, effectively realizes the tensioning of the steel cable, and has a good use effect.

[0004] To achieve the above-mentioned purpose, the utility model provides a steel cable pretensioner of a glass lifter, comprising a shell, a wiring hole formed on the shell for allowing the steel cable to pass through, a sliding seat slidably arranged in the shell, a wire threading hole provided on the sliding seat, the wire threading hole and the wiring hole being coaxially arranged, a pretensioning spring abutting against the sliding seat and the shell, a plurality of locking grooves are provided on the outer wall of the sliding seat, the locking groove comprises a vertical limiting surface and an inclined guide surface, the guide surface is arranged on a side close to the pretensioning spring, a lock buckle for positioning the sliding seat is further provided in the shell, one end of the lock buckle is rotatably connected to the shell, and the other end is formed with a bayonet and arranged in the lock slot, and a contact torsion spring for keeping the bayonet in the lock slot is further provided between the lock buckle and the shell.

[0005] The beneficial effect of such a setting is that, during use, the steel cable is passed through the wiring hole and the threading hole on the shell. At the same time, since the steel cable itself is equipped with a sleeve, in the initial state, the steel cable has no free length, and its own sleeve supports the sliding seat to compress the preload spring. When the free length of the steel cable increases, the sliding seat slides outward under the elastic force of the preload spring, and the lock buckle enters the lock groove at the adjacent position through displacement to prevent the sliding seat from returning to the initial position. The changed length of the steel cable is eliminated and absorbed by the device to ensure the tension of the steel cable system and maintain the smooth operation of the window lifter. This structural layout is reasonable and simple to use, is conducive to processing and production, is reliable to use, and effectively avoids damage to the door groove when opening the car door.

[0006] As a further configuration of the present invention, a skirt is circumferentially provided on the outer peripheral wall of the sliding seat, an abutment step is provided in the shell, the preload spring abuts on the abutment step, and the skirt is provided outside the preload spring.

[0007] The beneficial effects of such an arrangement are: such an arrangement further ensures the stability of the position of the preload spring and ensures the convenience of assembly; at the same time, the structure is simple, the production and processing are convenient, and the use is reliable.

[0008] As a further configuration of the present invention, the shell is divided into a base and a cover, the base is fixedly connected to the cover, the sliding seat is slidably arranged in the base, the lock and the interference torsion spring are arranged on the base, the wiring hole is arranged on the cover, and the interference platform is arranged on the cover.

[0009] The beneficial effect of this arrangement is that the shell is divided into two parts, making the overall structure easier to assemble and improving production and processing efficiency. At the same time, the structure is simple, easy to implement, and reliable to use.

[0010] As a further configuration of the present invention, a slot and a latch are provided between the base and the cover, and the slot and the latch are snap-fitted together.

[0011] The beneficial effect of such arrangement is that the connection is tighter, the structure is simple, the connection is reliable, and it is not easy to get loose, thus having a good use effect.

[0012] As a further configuration of the present invention, there are two lock buckles symmetrically arranged on both sides of the sliding seat.

[0013] The beneficial effect of such a setting is that such a setting further improves the stability of the structural locking structure, avoids unilateral failure that affects the normal use of the structure, and at the same time, the structure is simple, easy to implement, and has a good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0015] Figure 2 This is a schematic cross-sectional view of an embodiment of the present invention;

[0016] Figure 3 This is a schematic structural diagram of the cover body in an embodiment of the present utility model;

[0017] Figure 4 It is a structural schematic diagram of the base in an embodiment of the present utility model. DETAILED DESCRIPTION

[0018] The utility model provides an embodiment of a steel cable pre-tightening member for a glass lifter, such as Figures 1 to 4 As shown, it includes a shell, a wiring hole 11 is formed on the shell for the steel cable to pass through, a sliding seat 3 is slidably arranged in the shell, a wire threading hole 31 is provided on the sliding seat 3, and the wire threading hole 31 is coaxially arranged with the wiring hole 11, and a pre-tightening spring 5 is in contact with the sliding seat 3 and the shell, and a plurality of locking grooves 33 are provided on the outer wall of the sliding seat 3, and the locking groove 33 includes a vertical limiting surface 331 and an inclined guide surface 332, and the guide surface 332 is arranged on the side close to the pre-tightening spring 5, and a lock buckle 4 for positioning the sliding seat 3 is also provided in the shell, and one end of the lock buckle 4 is rotatably connected to the shell, and the other end is formed with a bayonet 41 and is arranged in the locking groove 33, and a contact torsion spring 6 for keeping the bayonet 41 in the locking groove 33 is also provided between the lock buckle 4 and the shell. The beneficial effect of such arrangement is as follows: in use, the steel cable is passed through the wiring hole 11 and the threading hole 31 on the housing. At the same time, since the steel cable itself is equipped with a sleeve, in the initial state, the steel cable has no free length, and its own sleeve presses against the sliding seat 3 to compress the preload spring 5. When the free length of the steel cable increases, the sliding seat 3 slides outward under the elastic force of the preload spring 5, and the lock buckle 4 enters the lock groove 33 at the adjacent position by displacement, preventing the sliding seat 3 from returning to the initial position. The changed length of the steel cable is eliminated and absorbed by the device to ensure the tension of the steel cable system and maintain the smooth operation of the window lifter. This structural layout is reasonable, simple to use, conducive to processing and production, reliable in use, and effectively avoids damage to the door groove when opening the car door.

[0019] As a further feature of this embodiment, a skirt 32 is circumferentially provided on the outer peripheral wall of the sliding seat 3. An abutment step is provided in the housing, against which the preload spring 5 abuts, and the skirt 32 is disposed around the preload spring 5. This arrangement has the beneficial effect of further ensuring the stability of the position of the preload spring 5 and facilitating assembly. It also has a simple structure, is easy to manufacture and process, and is reliable in use.

[0020] As a further configuration of this embodiment, the housing is separately provided with a base 2 and a cover 1. The base 2 is fixedly connected to the cover 1. The sliding seat 3 is slidably disposed in the base 2. The lock catch 4 and the abutment torsion spring 6 are disposed on the base 2. The wiring hole 11 is disposed on the cover 1, and the abutment platform is disposed on the cover 1. The beneficial effect of this configuration is that the housing is divided into two parts, making the overall structure easier to assemble and improving production and processing efficiency. At the same time, the structure is simple, easy to implement, and reliable to use.

[0021] As a further configuration of this embodiment, a slot 22 and a latch 12 are provided between the base 2 and the cover 1, and the slot 22 engages with the latch 12. This configuration has the beneficial effect of making the connection tighter, while having a simple structure, a reliable connection, and being difficult to loosen, thereby achieving a good use effect.

[0022] As a further configuration of this embodiment, there are two lock buckles 4 symmetrically arranged on both sides of the sliding seat 3. The beneficial effect of this configuration is that it further improves the stability of the structural locking structure, avoids unilateral failure that affects the normal use of the structure, and at the same time has a simple structure, is easy to implement, and has a good use effect.

[0023] The above example is only one preferred specific example of the present invention. Common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are all included in the protection scope of the present invention.

Claims

1. A cable pretensioner for a window lifter, comprising a housing having a wiring hole formed therein for inserting a cable, characterized in that: A sliding seat is slidingly arranged in the shell, and a threading hole is arranged on the sliding seat. The threading hole is coaxially arranged with the wiring hole. A pre-tightening spring is in contact with the sliding seat and the shell. A plurality of locking grooves are arranged on the outer wall of the sliding seat. The locking groove includes a vertical limiting surface and an inclined guide surface. The guide surface is arranged on the side close to the pre-tightening spring. A lock buckle for positioning the sliding seat is also provided in the shell. One end of the lock buckle is rotatably connected to the shell, and the other end is formed with a bayonet and arranged in the lock slot. A contact torsion spring for keeping the bayonet in the lock slot is also provided between the lock buckle and the shell.

2. The steel cable pretensioner for a window lifter according to claim 1, characterized in that: A skirt is provided on the outer peripheral wall of the sliding seat along the circumferential direction, an abutting step is provided in the shell, the preload spring abuts on the abutting step, and the skirt is provided around the preload spring.

3. The steel cable pretensioner for a window lifter according to claim 2, characterized in that: The shell is divided into a base and a cover, the base is fixedly connected to the cover, the sliding seat is slidably arranged in the base, the lock and the interference torsion spring are arranged on the base, the wiring hole is arranged on the cover, and the interference platform is arranged on the cover.

4. The steel cable pretensioner for a window lifter according to claim 3, characterized in that: A slot and a latch are provided between the base and the cover body, and the slot and the latch are engaged with each other.

5. The steel cable pretensioner for a window lifter according to claim 3, characterized in that: There are two lock buckles symmetrically arranged on both sides of the sliding seat.

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