CN209875008U

CN209875008U - Improved generation is from pretightning force pivot subassembly

Info

Publication number: CN209875008U
Application number: CN201821547163.1U
Authority: CN
Inventors: 杨军
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-09-21
Filing date: 2018-09-21
Publication date: 2019-12-31
Anticipated expiration: 2028-09-21

Abstract

The utility model relates to the field of rotating shaft assembly equipment, in particular to an improved self-pretightening force rotating shaft assembly, which comprises an aluminum pipe, wherein the first end of the aluminum pipe is fixedly connected with the first end of a left support, and the second end of the aluminum pipe is fixedly connected with the first end of a right support; the first end of the left support, the silencing pipe, the torsion spring, the support limiting sleeve, the guide column and the first end of the right support are contained in an inner hole of the aluminum pipe through the aluminum pipe; the first end of the torsion spring is connected with the first end of the guide post, and the second end of the torsion spring penetrates through the silencing pipe and extends out of the silencing pipe from the second end of the silencing pipe; the first end of the support limiting sleeve is fixed with the second end of the torsion spring; and an anti-wear gasket is arranged at the joint of the left support and the support limiting sleeve. The utility model discloses can effectually alleviate spring distortion, avoid left branch seat and support stop collar to rub each other, reduce to produce local wear because of two part terminal surface unevennesses.

Description

Improved generation is from pretightning force pivot subassembly

Technical Field

The utility model relates to a pivot subassembly equipment field especially relates to an improved generation is from pretightning force pivot subassembly suitable for (window) curtain pivot.

Background

The rotating shaft component is a connecting component used during rotation, can be applied to curtain rotating shafts of automobile skylight sun-shading curtains, automobile object-shading curtains, family window sun-shading curtains and the like, and is more convenient to fold and unfold due to the use of the rotating shaft component, so that the rotating shaft component is popular and widely used by people.

The existing energy storage rotating shaft assembly structure is approximately the energy storage structure disclosed in the background technology of Chinese patent number ZL201621156508.1 (grant bulletin date: 2017.05.24); the method comprises the following steps: a sleeve; a torsion spring assembly central axis; the first fixing block is arranged at the first end of the sleeve; a torsion spring; the buffer sleeve is sleeved between the peripheral surface of the torsion spring and the inner wall of the sleeve; the diameter of the tail end of the torsion spring is gradually reduced and finally approaches to the outer diameter of the middle shaft of the torsion spring assembly, the tail end of the torsion spring is provided with a hook-shaped structure, a pin hole is formed in the position, close to the tail end, of the middle shaft of the torsion spring assembly, a pin penetrating through the pin hole is matched with the hook-shaped structure to fix the tail end of the torsion spring, an elastic buffer washer in interference fit with the inner wall of the sleeve is sleeved between the tail end of the middle shaft of the torsion spring assembly and the pin hole, and two ends of the elastic buffer washer are limited by the pin and a locking.

However, such energy storage devices have the following problems in the actual production process: plastic pieces at two ends of the mechanism are assembled with the spring, and the plastic pieces are contacted with the spring and not contacted with the spring in the running process of the rotating shaft, so that abnormal noise of friction and interference is generated; the oiling process cannot avoid the fault by 100 percent; secondly, the spring and the aluminum pipe are isolated by a buffer sleeve, but the thickness of the buffer sleeve is limited, so that the impact and the collision between the spring and the aluminum pipe cannot be completely absorbed; when the vehicle passes through a bumpy road surface, the rotating shaft assembly generates impact and bump sound; and the existing structure has many parts, complex assembly process and low production efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an improved generation is from pretightning force pivot subassembly to solve above-mentioned technical problem.

The utility model discloses a solve above-mentioned technical problem, adopt following technical scheme to realize:

an improved self-pretightening force rotating shaft assembly is designed, and comprises an aluminum pipe, wherein the first end of the aluminum pipe is fixedly connected with the first end of a left support, and the second end of the aluminum pipe is fixedly connected with the first end of a right support; the first end of the left support, the silencing pipe, the torsion spring, the support limiting sleeve, the guide column and the first end of the right support are contained in an inner hole of the aluminum pipe through the aluminum pipe; the silencing pipe is inserted into the aluminum pipe; the first end of the torsion spring is fixed with the first end of the guide post, and the second end of the torsion spring penetrates through the silencing pipe and extends out of the silencing pipe from the second end of the silencing pipe; the first end of the support limiting sleeve is fixed with the second end of the torsion spring; the threaded joint of the first end of the right support is in contact with a right positioning pin, and the outer side of the right positioning pin is sleeved with a spring; and an anti-wear gasket is arranged at the joint of the left support and the support limiting sleeve.

Preferably, an axially extending and radially protruding fourth limiting rib is arranged on the outer side of the left support, a plurality of axially extending and radially recessed limiting grooves are formed in the inner pipe wall of the aluminum pipe, and the fourth limiting rib and the limiting grooves are mutually embedded, so that the aluminum pipe and the left support are prevented from rotating mutually.

Preferably, the first end of the support limiting sleeve axially extends to one side to form a first spring support, and the first spring support is inserted into the inner hole of the torsion spring from the first end of the torsion spring and is in fit connection with the inner hole of the torsion spring; the first spring support is in clearance fit with the inner hole of the torsion spring so as to improve abnormal sound caused by friction in the operation process.

Preferably, the inner diameter of the silencing tube is in clearance fit with the outer diameter of the torsion spring.

Preferably, an axially extending and radially protruding third limiting rib is arranged on the outer pipe wall of the silencing pipe, and the third limiting rib on the outer pipe wall of the silencing pipe is embedded into the limiting groove on the inner pipe wall of the aluminum pipe, so that the silencing pipe and the aluminum pipe are prevented from rotating.

Preferably, the first end of guide post is provided with an axially extending second spring pillar, just the second spring pillar insert in the hole of torsional spring and with the hole cooperation of torsional spring is connected, the second spring pillar with the clearance fit of the hole of torsional spring to improve the abnormal sound that causes of friction in the operation process.

Preferably, a second positioning hole which is vertically communicated is formed in the support limiting sleeve, a first positioning hole which is vertically communicated with the left support is formed in the left support, a positioning pin is inserted into the second positioning hole and the first positioning hole, and the fixing pin is inserted into the second positioning hole and the first positioning hole to realize connection, anti-back and pre-tightening anti-rotation among the spring, the support limiting sleeve and the left support.

Preferably, the end part of the support limiting sleeve is fixedly connected with the first end of the fixed shaft, and the tail end of the second end of the fixed shaft is provided with a flat surface; the fixed shaft is positioned in the center of the support limiting sleeve.

Preferably, a first end of the right support is provided with a first limiting rib which axially extends and radially protrudes, and the first limiting rib is embedded with the limiting groove on the inner pipe wall of the aluminum pipe, so that the aluminum pipe and the right support are prevented from rotating mutually.

Preferably, the first end of the torsion spring is fixed with a first buckle, and the first buckle is inserted into a first clamping hole in the guide column; the second end of torsional spring is fixed the second buckle, just the second buckle inserts the inside in the second screens hole of support stop collar realizes right the torsional spring is fixed.

The utility model has the advantages that:

the utility model introduces the guide post, fixes one end of the spring, overcomes the friction resistance to push the guide post to move rightwards when the spring is stressed and deformed, reduces the distortion of the spring, is buckled inside the support limiting sleeve and connected with the left support through the buckle arranged at the end part of the torsional spring, can limit the spring to be separated from the clamping groove through the left support, and additionally increases the antifriction gasket, thereby not only avoiding the mutual friction between the left support and the support limiting sleeve, but also reducing the local abrasion caused by the unevenness of the end surfaces of two parts; the inner diameter of the torsion spring is in clearance fit with the guide post and the support post of the support limiting sleeve, so that the whole body is prevented from being rubbed in the operation process and has no abnormal sound; the whole assembly process can be manually completed, the structure is simple, the number of parts is small, the assembly process is simple, and the production efficiency is improved by more than 100 percent

Drawings

Fig. 1 is a schematic diagram of the explosion structure of the present invention;

FIG. 2 is a schematic view of the connection structure of the torsion spring and the support stop collar of the present invention;

FIG. 3 is a schematic view of an enlarged structure at A of the present invention;

fig. 4 is a schematic sectional structure view in one direction of the present invention;

fig. 5 is a schematic cross-sectional structure view in another direction of the present invention;

reference numerals: 100. the device comprises a right support, 101, a threaded joint, 102, a first limiting rib, 200, a right positioning pin, 201, a first connecting rod, 202, a second connecting rod, 300, a spring, 400, an aluminum pipe, 401, a limiting groove, 500, a guide post, 501, a second limiting rib, 502, a first clamping hole, 503, a second spring support, 600, a torsion spring, 601, a first buckle, 602, a second buckle, 700, a silencing pipe, 701, a third limiting rib, 800, a left support, 801, a fourth limiting rib, 802, a first positioning hole, 900, an anti-wear gasket, 1000, a support limiting sleeve, 1001, a second positioning hole, 1002, a fixing shaft, 1003, a first spring support, 1004, a second clamping hole, 1100 and a positioning pin.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in fig. 1 to 5, in an improved self-pretightening force rotating shaft assembly, an aluminum pipe 400 in this embodiment is an aluminum extruded pipe 6063-T5, and a right support 100, a right fixing pin 200, a left support 800 and a support limiting sleeve 1000 are plastic pieces; the silencing tube 700 is a rubber piece; the spring 300, the torsion spring 600 and the positioning pin 1100 are wound spring parts, the fixing shaft 1002 is a machined stainless steel part, and the anti-friction gasket 900 is a plastic part.

The inner pipe wall of the aluminum pipe 400 is provided with a plurality of axially extending and radially recessed limiting grooves 401, and the widths of the plurality of limiting grooves 401 are different.

The support limiting sleeve 1000, the antifriction gasket 900, the left support 800, the torsion spring 600, the silencing tube 700 and the guide column 500 are assembled into a rotating shaft torsion spring assembly which is arranged in the aluminum tube 400 and is contained by the aluminum tube 400; the positioning pin 1100 fixes the support limiting sleeve 1000 and the left support 800 to realize the pre-tightening function.

The right support 100, the right fixing pin 200 and the spring 300 form a right support assembly, and the subassembly has a telescopic function and is convenient to install, is arranged in the aluminum pipe 400 and is contained by the aluminum pipe 400.

A first buckle 601 and a second buckle 602 are respectively arranged at the first end and the second end of the torsion spring 600; the first buckle 601 and the second buckle 602 are respectively matched with the first clamping hole 502 of the guide column 500 and the second clamping hole 1004 of the support limiting sleeve 1000 for limiting and preventing withdrawing; a silencing pipe 700 is provided between the torsion spring 600 and the aluminum pipe 400, and the silencing pipe 700 is fitted to the outer diameter of the torsion spring 600 through the inner diameter.

A second end of the right support 100 is provided with a first limiting rib 102, wherein the first limiting rib 102 is provided with a plurality of first limiting ribs, and the first limiting ribs have different thicknesses.

The second end of the left support 800 is provided with a fourth limiting rib 801, wherein the fourth limiting rib 801 is provided with a plurality of limiting ribs, and the thickness of the fourth limiting rib 801 is different.

The outer wall of the silencer duct 700 is provided with third limiting ribs 701 extending axially and protruding radially.

The first limiting rib 102 on the right support 100, the third limiting rib 701 on the silencing tube 700 and the fourth limiting rib 801 on the left support 800 are embedded into the limiting groove 401 of the aluminum tube 400, and the first limiting rib 102 on the right support 100 and the fourth limiting rib 801 on the left support 800 are embedded into the limiting groove 401 of the aluminum tube 400 and are matched with each other to limit relative circumferential rotation of parts.

Wherein, the inner hole of the torsion spring 600 is required to be in clearance fit with the second spring support 503 on the first end of the guide column 500 and the first spring support 1003 on the left support limiting sleeve 1000, so as to prevent the improved self-pretightening force rotating shaft assembly of the utility model from rubbing and generating abnormal sound in the operation process; the thickness and the material hardness of the silencing pipe 700 are controlled, and the buffer bump and the noise decibel reduction value are realized to the maximum limit.

The utility model discloses during the assembly, at first pack antifriction gasket 900 into support stop collar 1000, the external diameter of torsional spring 600 penetrates in left support 800, enter into second locating hole 1004 with the second buckle 602 of torsional spring 600 through the guide way of support stop collar 1000 again, then promote left support 800 and stop to the step department of support stop collar 1000, the internal diameter that the first fixture block 601 of torsional spring 600 passes through hush pipe 700, the first fixture block hole 502 that the first buckle 601 of torsional spring 600 got into guide post 500 through the guide way of guide post 500, accomplish pivot torsional spring assembly.

The first connecting rod 201 of the right fixing pin 200 is inserted into the inner hole of the right support 100, and then the spring 300 is screwed into the second connecting rod 202 of the right support 100 to complete the assembly of the right support assembly.

Next, the assembled right support assembly is installed into the aluminum pipe 400, and when the assembly is required, the anti-rotation limiting position is required to be noticed, and the first limiting rib 102 on the right support 100 is embedded into a limiting groove 401 of the aluminum pipe 400 to limit the relative radial rotation of parts; the rib position of the right support 100 is in interference fit with the inner hole of the aluminum pipe 400, so that the axial loosening is prevented.

Next, the assembled rotating shaft torsion spring assembly is installed into the aluminum pipe 400, the anti-rotation limiting position is required to be taken care during the assembling, the second limiting rib 501 on the guide column 500 is embedded into the anti-rotation limiting groove 401 of the aluminum pipe 400,

the third limiting rib 701 on the silencing pipe 700 is embedded into the limiting groove 401 of the aluminum pipe 400, and the fourth limiting rib 801 on the left support 800 is embedded into the limiting groove 401 of the aluminum pipe 400 and matched with the same to limit relative radial rotation of parts; the rib position of the left support 800 is in interference fit with the inner hole of the aluminum pipe 400, so that the axial loosening is prevented.

After the fixed shaft 1002 is rotated for a specified number of turns as required, when the second positioning hole 1001 on the support stop collar 1000 is overlapped with the first positioning hole 802 on the left support 800, the positioning pin 1100 is inserted to realize pre-tightening and anti-rotation, and the assembly process is completed.

The above assembly procedures can be manually completed.

The flat surface is arranged at the tail end of the second end of the fixed shaft 1002, and the flat surface is assembled with the assembly surface of the sunroof guide rail, so that the improved self-pretightening force rotating shaft assembly is positioned.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an improved generation is from pretightning force pivot subassembly, includes aluminum pipe (400), its characterized in that: the first end of the aluminum pipe (400) is fixedly connected with the first end of the left support (800), and the second end of the aluminum pipe (400) is fixedly connected with the first end of the right support (100); the aluminum pipe (400) contains the first end of the left support (800), the silencing pipe (700), the torsion spring (600), the support limiting sleeve (1000), the guide column (500) and the first end of the right support (100) in an inner hole of the aluminum pipe (400); the silencing tube (700) is inserted into the aluminum tube (400); the first end of the torsion spring (600) is fixed with the first end of the guide column (500), and the second end of the torsion spring (600) penetrates through the silencing pipe (700) and extends out of the silencing pipe (700) from the second end of the silencing pipe (700); the first end of the support limiting sleeve (1000) is fixed with the second end of the torsion spring (600); the threaded joint (101) at the first end of the right support (100) is in contact with a right positioning pin (200), and the outer side of the right positioning pin (200) is sleeved with a spring (300); and an anti-wear gasket (900) is arranged at the joint of the left support (800) and the support limiting sleeve (1000).

2. The improved self-tightening force spindle assembly of claim 1, wherein: the outer side of the left support (800) is provided with a fourth limiting rib (801) which axially extends and radially protrudes, the inner pipe wall of the aluminum pipe (400) is provided with a plurality of axially extending and radially recessed limiting grooves (401), and the fourth limiting rib (801) and the limiting grooves (401) are mutually embedded.

3. The improved self-tightening force spindle assembly of claim 1, wherein: the first end of the support limiting sleeve (1000) axially extends to one side to form a first spring support column (1003), and the first spring support column (1003) is inserted into the inner hole of the torsion spring (600) from the first end of the torsion spring (600) and is in fit connection with the inner hole of the torsion spring (600); the first spring support (1003) is in clearance fit with an inner bore of the torsion spring (600).

4. The improved self-tightening force spindle assembly of claim 1, wherein: the inner diameter of the silencing pipe (700) is in clearance fit with the outer diameter of the torsion spring (600).

5. The improved self-tightening force spindle assembly of claim 2, wherein: the outer wall of the silencing pipe (700) is provided with a third limiting rib (701) which extends axially and protrudes radially, and the third limiting rib (701) on the outer wall of the silencing pipe (700) is embedded into a limiting groove (401) on the inner wall of the aluminum pipe (400).

6. The improved self-tightening force spindle assembly of claim 1, wherein: the first end of guide post (500) is provided with a second spring pillar (503) of axial extension, just second spring pillar (503) insert in the hole of torsional spring (600) and with the hole cooperation of torsional spring (600) is connected, second spring pillar (503) with the clearance fit of the hole of torsional spring (600).

7. The improved self-tightening force spindle assembly of claim 1, wherein: the support limiting sleeve (1000) is provided with a second positioning hole (1001) which is vertically communicated, the left support (800) is provided with a first positioning hole (802) which is vertically communicated, and a positioning pin (1100) is inserted into the second positioning hole (1001) and the first positioning hole (802).

8. The improved self-tightening force spindle assembly of claim 1, wherein: the end part of the support limiting sleeve (1000) is fixedly connected with the first end of the fixed shaft (1002), and the tail end of the second end of the fixed shaft (1002) is provided with a flat surface; the fixed shaft (1002) is positioned at the center of the support limiting sleeve (1000).

9. The improved self-tightening force spindle assembly of claim 2, wherein: the first end of the right support (100) is provided with a first limiting rib (102) which axially extends and radially protrudes, and the first limiting rib (102) is mutually embedded with a limiting groove (401) on the inner pipe wall of the aluminum pipe (400).

10. The improved self-tightening force spindle assembly of claim 1, wherein: a first buckle (601) is fixed at the first end of the torsion spring (600), and the first buckle (601) is inserted into a first clamping hole (502) in the guide column (500); the second end of the torsion spring (600) is fixed with a second buckle (602), and the second buckle (602) is inserted into the second clamping hole (1004) of the support limiting sleeve (1000).