CN214647731U

CN214647731U - High-strength front electric sliding rail

Info

Publication number: CN214647731U
Application number: CN202121072326.7U
Authority: CN
Inventors: 伊鹏辉; 王川; 王志诚; 倪洪斌
Original assignee: Keiper Changshu Seating Mechanisms Co Ltd
Current assignee: Keiper Changshu Seating Mechanisms Co Ltd
Priority date: 2021-05-19
Filing date: 2021-05-19
Publication date: 2021-11-09
Anticipated expiration: 2031-05-19

Abstract

The utility model provides a high-strength front electric slide rail, which comprises an upper rail, a lower rail, a retainer assembly and a transmission mechanism assembly; the upper rail can be matched with the lower rail along the lower rail in a sliding way; the retainer assembly is arranged in the retainer accommodating space; the transmission mechanism assembly is arranged in the transmission mechanism accommodating space and is connected with the upper rail and the lower rail; the transmission mechanism assembly comprises a gear box assembly, a screw rod, two retainer ring assemblies and a nut support assembly; one end of the screw rod is in transmission connection with the gear box assembly; two ends of the screw rod are respectively connected with a check ring assembly, and the gear box assembly and the check ring assembly are fixed with the upper rail; the nut support assembly is sleeved outside the screw rod through the internal thread hole, and the nut support assembly is fixed with the lower rail. The utility model discloses a high-strength front electric slide rail, which adopts a front and back symmetrical stop block design, adopts an integral retainer ring, and adopts a sectional type design for a nut bracket; the slide rail can bear higher strength and meet the requirement of 40 KN.

Description

High-strength front electric sliding rail

Technical Field

The utility model relates to a slide rail field especially relates to a leading electronic slide rail of high strength.

Background

The existing scheme of the front electric sliding rail mainly aims at the design of a front row seat, and does not consider the requirement of a two-row 60-side double seat sliding rail. For the two-row 60-side seat, the slide rail is required to bear the inertia force caused by the weight of two persons in the front and rear collision processes, and the strength of the existing slide rail cannot meet the requirement.

At present, one end of a three-point safety belt of an automobile seat is fixed on a B column, and the other two points of the three-point safety belt are fixed on the seat. And the two-row seats of the MPV and the three-point type safety belts on part of the three-row seats are all fixed on the seats, and the requirements of 40KN are provided for the requirements of the front and back static strength of the slide rail.

The existing front electric slide rail only has the front-section local screw rod to bear the front and back strength, and the strength is limited, so that the 40KN requirement cannot be met.

In addition, the front and back strength supports of the existing product slide rail respectively need a check ring, so that the number of parts is large, the number of working procedures is large, and the influence of twice press mounting on the jumping of the screw rod is large. The existing front-mounted electric slide rail can crush the lower rail due to the stress inclination of the nut bracket when the front or rear collision happens, so that the strength can not meet the 40KN requirement.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides a high-strength front electric slide rail, which adopts a front and back symmetrical stop block design, adopts an integral check ring, and adopts a sectional type design for a nut bracket; the slide rail can bear higher strength, the 40KN requirement is met, the number of parts can be reduced, the assembly procedures are reduced, the influence of the process flow on the jumping of the screw rod is reduced, and the sound performance of the slide rail is improved.

In order to achieve the above object, the present invention provides a high-strength front electric slide rail, which comprises an upper rail, a lower rail, two retainer assemblies and a transmission mechanism assembly; the upper rail can be matched with the lower rail along the lower rail in a sliding manner, two sides of the upper rail and two sides of the lower rail are matched to form a holding frame accommodating space respectively, and the upper rail and the middle of the lower rail are matched to form a transmission mechanism accommodating space; the retainer assembly is arranged in the retainer accommodating space; the transmission mechanism assembly is arranged in the transmission mechanism accommodating space and is connected with the upper rail and the lower rail; the transmission mechanism assembly comprises a gear box assembly, a screw rod, two retainer ring assemblies, a rear bracket and a nut bracket assembly; one end of the screw rod is in transmission connection with the gear box assembly, and the other end of the screw rod is in fit connection with the rear support; the two ends of the screw rod are respectively and symmetrically connected with the retainer ring assembly, and the gear box assembly and the retainer ring assembly are fixed with the upper rail; the nut support assembly forms an internal thread hole matched with the screw rod, the nut support assembly is sleeved outside the screw rod through the internal thread hole, and the nut support assembly is fixed with the lower rail.

Preferably, the retainer ring assembly comprises a retainer ring and a screw rod bracket; the baffle ring is sleeved and fixed on the screw rod; the top of the screw rod support is fixedly connected with the upper rail, and the retainer ring is used for limiting the screw rod support along the axial direction of the screw rod.

Preferably, the retainer ring is integrally formed, two ends of the retainer ring are respectively provided with a convex ring, and the middle part of the retainer ring is provided with an annular groove; a concave part matched with the annular groove is formed at the lower part of the screw rod bracket; the retainer ring is rotatably arranged in the concave part in a penetrating way through the annular groove; the two convex rings limit the screw rod bracket along the axial direction of the screw rod; the top of the screw rod support is fixedly connected with the upper rail.

Preferably, the retainer ring is connected with the screw rod through gluing or riveting.

Preferably, the nut bracket assembly comprises a nut bracket assembly and a nut bracket reinforcing sheet; the nut support assembly forms the internal thread hole, is sleeved outside the screw rod through the internal thread hole and is positioned between the two retaining rings; the bottom surface of the nut bracket reinforcing sheet is fixedly connected with the lower rail; the nut bracket assembly is fixedly connected with the nut bracket reinforcing sheet in a threaded manner; the bottom area of the nut bracket reinforcing sheet is larger than that of the nut bracket assembly.

Preferably, the nut bracket reinforcing sheet is glued or welded with the lower rail.

Preferably, the transmission mechanism assembly further comprises a rear support, and the rear support is connected to the screw rod and is located at one end, far away from the gear box assembly, of the screw rod.

The utility model discloses owing to adopted above technical scheme, make it have following beneficial effect:

firstly, the baffle ring assemblies which are symmetrically arranged are adopted in the front and the back of the screw rod, and in the front and the back collision processes, due to the design of the front and the back symmetrical type baffle blocks, the whole section of the screw rod is stressed, one part of the screw rod is stressed and stretched, the other part of the screw rod is stressed and compressed, and therefore higher collision strength can be borne. Secondly, the check ring adopts an integrally formed structure, and integrates the front and back strength supporting functions into one part, so that the number of parts is reduced, and the weight of the device is reduced; the assembly process can be reduced, the influence on the jumping of the screw rod is reduced, and the sound performance of the slide rail is improved; in addition, the X-direction stroke space is increased. The nut support assembly is designed in a sectional mode, the upper nut support assembly supports nut transmission, the lower nut support reinforcing sheet is connected with the lower rail through welding/gluing, the contact area of the nut support assembly and the lower rail is increased, and the lower rail is prevented from being extruded and broken under the working conditions of front and rear collision, so that the slide rail can bear higher strength; in addition, the height space of the lower nut bracket is reserved, so that the bolt is conveniently arranged on the lower rail, and the assembling space is facilitated.

Drawings

Fig. 1 is a schematic view of an overall structure of a high-strength front electric slide rail according to an embodiment of the present invention;

fig. 2 is an exploded view of the high-strength front electric slide rail according to the embodiment of the present invention;

fig. 3 is a sectional view of the high-strength front electric slide rail according to the embodiment of the present invention;

fig. 4 is a schematic view of a connection structure of a retainer ring assembly according to an embodiment of the present invention;

fig. 5 and fig. 6 are schematic structural views of a retainer ring according to an embodiment of the present invention;

fig. 7 is a schematic view of a connection structure of a nut bracket assembly according to an embodiment of the present invention.

Detailed Description

The following description of the preferred embodiments of the present invention will be given with reference to the accompanying drawings, fig. 1 to 7, and will make the functions and features of the present invention better understood.

Referring to fig. 1 to 3, a high-strength front electric slide rail according to an embodiment of the present invention includes an upper rail 1, a lower rail 2, two retainer assemblies 3, and a transmission assembly 4; the upper rail 1 can be matched with the lower rail 2 along the lower rail 2 in a sliding way, two sides of the upper rail 1 and the lower rail 2 are matched to form a holding frame accommodating space respectively, and the middle parts of the upper rail 1 and the lower rail 2 are matched to form a transmission mechanism accommodating space; the retainer assembly 3 is arranged in the retainer accommodating space; the transmission mechanism assembly 4 is arranged in the transmission mechanism accommodating space and is connected with the upper rail 1 and the lower rail 2; the transmission mechanism assembly 4 comprises a gear box assembly 41, a screw rod 42, two retainer ring assemblies 43, a rear bracket 45 and a nut bracket assembly 44; one end of the screw rod 42 is in transmission connection with the gear box assembly 41, and the other end of the screw rod 42 is in matching connection with the rear support 45; two ends of the screw rod 42 are respectively connected with a retainer ring component 43, and the gear box assembly 41 and the retainer ring component 43 are fixed with the upper rail 1; the nut bracket assembly 44 forms an internal threaded hole matched with the lead screw 42, and is sleeved outside the lead screw 42 through the internal threaded hole, and the nut bracket assembly 44 is fixed with the lower rail 2.

The check ring assemblies 43 are symmetrically arranged in the front and the back of the screw rod 42, and in the front and the back collision processes, due to the design of front and back symmetrical check blocks, the whole screw rod 42 is stressed, one part of the screw rod 42 is stressed and stretched, the other part of the screw rod 42 is stressed and compressed, and therefore higher collision strength can be borne.

Referring to fig. 4, the retainer ring assembly 43 includes a retainer ring 431 and a screw rod support 432; the retainer ring 431 is sleeved and fixed on the screw rod 42; the top of the screw rod bracket 432 is fixedly connected with the upper rail 1, and the retainer ring 431 limits the screw rod bracket 432 along the axial direction of the screw rod 42.

Referring to fig. 4 to 6, the retainer ring 431 is integrally formed, two ends of the retainer ring 431 are respectively formed with a protruding ring 4312, and the middle of the retainer ring 431 is formed with an annular groove 4311; the lower part of the screw rod bracket 432 is provided with a concave part matched with the annular groove 4311; the retainer ring 431 is rotatably arranged in the concave part in a penetrating way through the annular groove 4311; the two convex rings 4312 limit the screw rod support 432 along the axial direction of the screw rod 42; the top of the screw rod bracket 432 is fixedly connected with the upper rail 1.

The retainer ring 431 is glued or clinched to the lead screw 42.

The structure of the retainer ring 431 is shown in fig. 5 and 6, wherein the retainer ring 431 of fig. 5 can be fixed with the screw rod 42 by means of gluing; the retainer ring 431 of fig. 6 can be fixed to the screw rod 42 by caulking.

The retainer ring 431 is of an integrally formed structure, and the originally required front and back strength supporting functions are integrated into one part, so that the number of parts is reduced, and the weight of the device is reduced; the assembly process can be reduced, the influence on the jumping of the screw rod 42 is reduced, and the sound performance of the slide rail is improved; in addition, the X-direction stroke space is increased.

Referring to fig. 3 and 7, the nut bracket assembly 44 includes a nut bracket assembly 441 and a nut bracket reinforcement sheet 442; the nut bracket assembly 441 forms an internal threaded hole and is sleeved outside the screw rod 42 through the internal threaded hole and positioned between the two retaining rings 431; the bottom surface of the nut bracket reinforcing sheet 442 is fixedly connected with the lower rail 2; the nut bracket assembly 441 is screwed and fixed with the nut bracket reinforcing sheet 442 through a nut bracket fastening bolt 443; the bottom area of the nut bracket reinforcement piece 442 is larger than the bottom area of the nut bracket assembly 441.

The nut bracket reinforcing piece 442 is glued or welded to the lower rail 2.

The nut bracket assembly 44 is designed in a sectional mode, the upper nut bracket assembly 441 supports nut transmission, the lower nut bracket reinforcing sheet 442 is connected with the lower rail 2 through welding/gluing, the contact area of the nut bracket assembly 441 and the lower rail 2 is increased, and the lower rail 2 is prevented from being extruded and broken under the working conditions of front and rear collision, so that the slide rail can bear higher strength; in addition, the height space of the lower nut bracket is reserved, so that the bolt is conveniently arranged on the lower rail 2, and the assembling space is facilitated.

The present invention has been described in detail with reference to the embodiments shown in the drawings, and those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details of the embodiments should not be construed as limitations of the invention, which are intended to be covered by the following claims.

Claims

1. A high-strength front electric slide rail is characterized by comprising an upper rail, a lower rail, two retainer assemblies and a transmission mechanism assembly; the upper rail can be matched with the lower rail along the lower rail in a sliding manner, two sides of the upper rail and two sides of the lower rail are matched to form a holding frame accommodating space respectively, and the upper rail and the middle of the lower rail are matched to form a transmission mechanism accommodating space; the retainer assembly is arranged in the retainer accommodating space; the transmission mechanism assembly is arranged in the transmission mechanism accommodating space and is connected with the upper rail and the lower rail; the transmission mechanism assembly comprises a gear box assembly, a screw rod, two retainer ring assemblies, a rear bracket and a nut bracket assembly; one end of the screw rod is in transmission connection with the gear box assembly, and the other end of the screw rod is in fit connection with the rear support; the two ends of the screw rod are respectively and symmetrically connected with the retainer ring assembly, and the gear box assembly and the retainer ring assembly are fixed with the upper rail; the nut support assembly forms an internal thread hole matched with the screw rod, the nut support assembly is sleeved outside the screw rod through the internal thread hole, and the nut support assembly is fixed with the lower rail.

2. The high-strength electric front rail according to claim 1, wherein the retainer ring assembly comprises a retainer ring and a screw bracket; the baffle ring is sleeved and fixed on the screw rod; the top of the screw rod support is fixedly connected with the upper rail, and the retainer ring is used for limiting the screw rod support along the axial direction of the screw rod.

3. The high-strength front electric slide rail according to claim 2, wherein the retainer ring is integrally formed, a convex ring is respectively formed at two ends of the retainer ring, and an annular groove is formed in the middle of the retainer ring; a concave part matched with the annular groove is formed at the lower part of the screw rod bracket; the retainer ring is rotatably arranged in the concave part in a penetrating way through the annular groove; the two convex rings limit the screw rod bracket along the axial direction of the screw rod; the top of the screw rod support is fixedly connected with the upper rail.

4. The high-strength front electric slide rail according to claim 3, wherein the retainer ring is connected with the screw rod by gluing or riveting.

5. The high strength front mounted power slide of claim 3, wherein said nut bracket assembly includes a nut bracket assembly and a nut bracket reinforcement tab; the nut support assembly forms the internal thread hole, is sleeved outside the screw rod through the internal thread hole and is positioned between the two retaining rings; the bottom surface of the nut bracket reinforcing sheet is fixedly connected with the lower rail; the nut bracket assembly is fixedly connected with the nut bracket reinforcing sheet in a threaded manner; the bottom area of the nut bracket reinforcing sheet is larger than that of the nut bracket assembly.

6. The high-strength front electric slide rail according to claim 5, wherein the nut bracket reinforcing sheet is glued or welded to the lower rail.