CN218616351U - Car seat long slide rail pencil box tow chain helping hand mechanism that resets - Google Patents

Abstract

The utility model provides a long slide rail pencil box tow chain of car seat booster mechanism that resets, including tow chain box and the tow chain of setting in the tow chain box, seted up a spout in the tow chain box, slidable mounting has tow chain sliding assembly in the spout, and tow chain sliding assembly includes slide, mount, pulley and pulley pivot, and slide slidable mounting is in the spout, and the mount is connected with reset assembly, and reset assembly includes constant force spring, tight pulley pivot, tight pulley, fixed plate, leading wheel pivot, leading wheel. In the process of drawing the drag chain, the drag chain is moved through the drag chain sliding assembly, and the sliding plate moves back and forth along the sliding groove; the constant force spring extends or contracts, and is guided by the guide wheel as the movement of the constant force spring, and the constant force spring performs the stretching or winding action on the fixed wheel. In the process of pushing the drag chain back, a pull force is used for balancing the resistance of the drag chain, and the damage caused by overlarge stress in the drag chain is avoided.

Description

Car seat long slide rail pencil box tow chain helping hand mechanism that resets

Technical Field

The utility model belongs to the technical field of automobile parts, especially, relate to a long slide rail pencil box tow chain of car seat helping hand mechanism that resets.

Background

At present MPV car seat adopts long slide rail form more, the seat stroke is longer than traditional slide rail, among the prior art, for guaranteeing that the pencil removes in long stroke within range, adopt the tow chain structure more, the tow chain is located inside the slide rail, retreat the back when the seat, the tow chain can retract inside the tow chain box that the slide rail next door was arranged, at the in-process that the seat retreated, a backward thrust is applyed to the tow chain tip, push back the tow chain box with the tow chain, at the in-process that pushes back, because the tow chain box adopts around the book structure, the in-process resistance of tow chain around rolling up can be very big, the extreme condition will damage partial tow chain, lead to the tow chain to throw off, thereby make whole tow chain inefficacy, the seat can't remove and be in the card die state.

In order to solve the problem of damage caused by the pushing back process of the drag chain, a stretching mechanism is required to be arranged inside the drag chain box, certain force is applied to the moving end inside the drag chain, the internal resistance is balanced, and therefore the problem of drag chain damage is solved. Most of the technical schemes at present do not have a reset mechanism or adopt a tension spring arrangement, the tension spring arrangement occupies a large space, the elasticity is gradually increased or reduced in the stretching process, the whole force application process is unstable, and the risk of drag chain damage cannot be completely eliminated.

SUMMERY OF THE UTILITY MODEL

For solving the problem that exists among the background art, the utility model provides a long slide rail pencil box tow chain of car seat booster mechanism that resets.

The technical scheme of the utility model as follows:

a long slide rail wire harness box drag chain resetting booster mechanism for an automobile seat comprises a drag chain box and a drag chain arranged in the drag chain box, wherein a sliding chute is formed in the drag chain box, a drag chain sliding assembly is slidably mounted in the sliding chute, the drag chain sliding assembly comprises a sliding plate, a fixing frame, a pulley and a pulley rotating shaft, the sliding plate is slidably mounted in the sliding chute, the fixing frame is fixedly mounted at the end part of the sliding plate, a connecting hole is formed in the fixing frame, the pulley rotating shaft is fixedly mounted at the other end of the sliding plate, and the pulley is rotatably mounted on the pulley rotating shaft; the mount is connected with reset assembly, reset assembly includes constant force spring, tight pulley pivot, tight pulley, fixed plate, leading wheel pivot, leading wheel, set screw is passed through to the one end of constant force spring and is connected with the connecting hole on the mount, the other end fixed mounting of constant force spring is on the tight pulley, and the constant force spring winding is on the tight pulley, the tight pulley rotates and installs in the tight pulley pivot, tight pulley pivot fixed mounting is on the fixed plate, the fixed plate passes through set screw fixed mounting in the tow chain box, leading wheel pivot fixed mounting is on the fixed plate, the leading wheel rotates and installs in the leading wheel pivot, the leading wheel rotates along the surface rotation of constant force spring.

As the utility model discloses a preferred, all install anti-drop for the axle retaining ring in pulley pivot and the tight pulley pivot.

As the utility model discloses a preferred, the epaxial installation anticreep of leading wheel is fallen the jump ring for the axle.

As a preference of the present invention, the reset assembly is located at an end of the drag chain box, and the drag chain sliding assembly is located adjacent to the reset assembly.

As an optimization of the utility model, the fixed plate is fixedly installed in the drag chain box through four fixing screws.

The utility model has the advantages as follows:

the utility model provides a long slide rail pencil box tow chain of car seat power assisting device that resets, occupation space is little, and tow chain atress is even, can effectually eliminate and avoid the tow chain damage phenomenon; the constant force spring is used as a driving part inside the drag chain box, the force of the constant force spring in the whole force application process is constant, and the internal resistance of the drag chain can be effectively balanced.

Drawings

Other objects and results of the invention will be more apparent and readily appreciated by reference to the following description taken in conjunction with the accompanying drawings, and as the invention is more fully understood. In the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the middle drag chain sliding assembly of the present invention.

Fig. 3 is a schematic structural diagram of the middle reset assembly of the present invention.

Fig. 4 is a schematic view of the structure of the middle retainer ring of the present invention.

Fig. 5 is the schematic diagram of the middle clamp spring structure of the present invention.

Wherein the reference numbers are: the drag chain box 1, the drag chain 2, the sliding groove 11, the drag chain sliding assembly 3, the sliding plate 31, the fixing frame 32, the pulley 33, the pulley rotating shaft 34, the connecting hole 321, the reset assembly 4, the constant force spring 41, the fixing wheel rotating shaft 42, the fixing wheel 43, the fixing plate 44, the guide wheel rotating shaft 45, the guide wheel 46, the retainer ring 5 and the clamp spring 6.

Detailed Description

In order to make the technical solution and advantages of the present invention better understood by those skilled in the art, the present invention will be described in detail with reference to the accompanying drawings, which are not intended to limit the scope of the present invention.

In the description of the present application, it should be noted that the terms "inner", "end", and the like indicate the orientation or positional relationship: the particular arrangements or components shown in the drawings, or the orientations or positional relationships conventionally used in the manufacture of the applications, are for convenience only and to simplify the description, and are not intended to indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular orientation, and are not to be construed as limiting the application.

In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; they may be mechanically coupled, directly coupled, indirectly coupled through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Referring to FIGS. 1-3: a long slide rail wire harness box drag chain resetting booster mechanism of an automobile seat comprises a drag chain box 1 and a drag chain 2 arranged in the drag chain box 1, wherein a sliding groove 11 is formed in the drag chain box 1, a drag chain sliding assembly 3 is slidably arranged in the sliding groove 11, the drag chain sliding assembly 3 comprises a sliding plate 31, a fixed frame 32, a pulley 33 and a pulley rotating shaft 34, the sliding plate 31 is slidably arranged in the sliding groove 11, the fixed frame 32 is fixedly arranged at the end part of the sliding plate 31, a connecting hole 321 is formed in the fixed frame 32, the pulley rotating shaft 34 is fixedly arranged at the other end of the sliding plate 31, and the pulley 33 is rotatably arranged on the pulley rotating shaft 34; mount 32 is connected with reset assembly 4, reset assembly 4 includes constant force spring 41, tight pulley pivot 42, tight pulley 43, fixed plate 44, leading wheel pivot 45, leading wheel 46, the one end of constant force spring 41 is passed through set screw and is connected with connecting hole 321 on the mount 32, the other end fixed mounting of constant force spring 41 is on tight pulley 43, the winding of constant force spring 41 is on tight pulley 44, tight pulley 44 rotates and installs on tight pulley pivot 42, tight pulley pivot 42 fixed mounting is on fixed plate 44, fixed plate 44 is through four pieces of set screw fixed mounting in drag chain box 1, leading wheel pivot 45 fixed mounting is on fixed plate 44, leading wheel 46 rotates and installs on leading wheel pivot 45, leading wheel 46 rotates along the surface of constant force spring 41.

Further, the pulley rotating shaft 34 and the fixed pulley rotating shaft 42 are both provided with anti-falling shaft retainer rings 5 (see fig. 4), and the guide wheel shaft 45 is provided with anti-falling shaft retainer springs 6 (see fig. 5).

Further, a reset assembly 4 is located at the end of the tow box 1, and a tow slide assembly 3 is present adjacent to the reset assembly 4 (see fig. 1).

The utility model discloses a theory of operation does:

in the process of stretching the drag chain 2, the drag chain 2 moves through the drag chain sliding assembly 3, the drag chain 2 stretches, and the sliding plate 31 moves back and forth along the sliding groove 11; the constant force spring 41 connected to the fixed frame 32 thus performs an extending or contracting motion, and at the same time, the constant force spring 41 performs an extending or winding motion on the fixed wheel 43 as a motion guide of the constant force spring 41 by the guide wheel 46. In the process of pushing the drag chain 2 back, a pull force is used for balancing the resistance of the drag chain 2, and the damage caused by overlarge stress in the drag chain 2 is avoided.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (5)

1. The utility model provides a long slide rail pencil box tow chain of car seat power assisting device that resets, includes tow chain box and the tow chain of setting in the tow chain box, its characterized in that: a sliding groove is formed in the drag chain box, a drag chain sliding assembly is slidably mounted in the sliding groove and comprises a sliding plate, a fixing frame, a pulley and a pulley rotating shaft, the sliding plate is slidably mounted in the sliding groove, the fixing frame is fixedly mounted at the end part of the sliding plate, a connecting hole is formed in the fixing frame, the pulley rotating shaft is fixedly mounted at the other end of the sliding plate, and the pulley is rotatably mounted on the pulley rotating shaft; the mount is connected with reset assembly, reset assembly includes constant force spring, tight pulley pivot, tight pulley, fixed plate, leading wheel pivot, leading wheel, set screw is passed through to the one end of constant force spring and is connected with the connecting hole on the mount, the other end fixed mounting of constant force spring is on the tight pulley, and the constant force spring winding is on the tight pulley, the tight pulley rotates and installs in the tight pulley pivot, tight pulley pivot fixed mounting is on the fixed plate, the fixed plate passes through set screw fixed mounting in the tow chain box, leading wheel pivot fixed mounting is on the fixed plate, the leading wheel rotates and installs in the leading wheel pivot, the leading wheel rotates along the surface rotation of constant force spring.

2. The long slide rail harness box tow chain of car seat power assisting device of claim 1, characterized in that: and the pulley rotating shaft and the fixed wheel rotating shaft are both provided with anti-falling shaft check rings.

3. The long slide rail wire harness box tow chain of the automobile seat resets assist drive device according to claim 1, its characterized in that: and the guide wheel shaft is provided with a snap spring for an anti-falling shaft.

4. The long slide rail wire harness box tow chain of the automobile seat resets assist drive device according to claim 1, its characterized in that: the reset assembly is located at the end of the tow chain box, and the tow chain sliding assembly is located adjacent to the reset assembly.

5. The long slide rail wire harness box tow chain of the automobile seat resets assist drive device according to claim 1, its characterized in that: the fixed plate is fixedly arranged in the drag chain box through four fixing screws.

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