CN210760969U

CN210760969U - Rod-shaped object locking buckle and pull rod assembly

Info

Publication number: CN210760969U
Application number: CN201921612575.3U
Authority: CN
Inventors: 江海斌; 沈先取; 王佳
Original assignee: Zhejiang Ruitai Suspension System Technology Ltd
Current assignee: Zhejiang Ruitai Suspension System Technology Ltd
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-06-16
Anticipated expiration: 2029-09-25

Abstract

The utility model discloses a rod-shaped object locking buckle and pull rod assembly, which comprises a buckle body, wherein the buckle body comprises a locking part and an adjusting part connected with the locking part, a locking area is formed by enclosing the locking part and the adjusting part, and the adjusting part is provided with an adjusting gap communicated with the locking area; the locking piece is connected with the adjusting part and can apply force to the adjusting part to force the locking area to be increased or decreased; the locking region comprises a first locking arc section, a second locking arc section and a linear positioning section, wherein the second locking arc section and the linear positioning section are located on two sides of the adjusting gap, one side of the linear positioning section is tangent to the second locking arc section, the other side of the linear positioning section extends towards the first locking arc section, the two linear positioning sections are arranged in the locking region, and the locking member can push a rod-shaped object arranged in the locking region to move towards the first locking arc section when force is applied to the adjusting portion, so that the contact area between the two is increased, the cohesion degree of the rod-shaped object is gradually improved, and the locking effect is improved.

Description

Rod-shaped object locking buckle and pull rod assembly

Technical Field

The utility model belongs to the technical field of car a steering system's technique and specifically relates to a shaft-like thing locking buckle and pull rod assembly are related to.

Background

The automobile pull rod can be divided into a drag rod and a cross rod, which are two main parts of an automobile steering system. A conventional tie rod structure for an automobile, for example, as shown in "a tie rod assembly" disclosed in patent No. CN208069794U, includes a first tie rod and a second tie rod, a telescopic shaft sleeve is disposed between the two tie rods, and the first tie rod and the second tie rod can axially slide relative to the telescopic shaft sleeve.

In the prior art, the tie rod and the telescopic shaft sleeve are usually connected in a threaded manner, during the running of a vehicle, the tie rod and the telescopic shaft sleeve need to be kept in relative rotation locking in the circumferential direction to resist the torque generated during the steering process of the vehicle, and the threaded connection only has certain axial self-locking property, so that a tension band is further arranged on the outer wall of the telescopic shaft sleeve, which is also shown in the patent. When the vehicle is locked, the bolt on the elastic hoop is screwed for increasing the friction force between the telescopic shaft sleeve and the transverse pull rod, so that the safety of the vehicle in the driving process is improved.

The pull rod generally applied to the car is not high in torque force required to be born, so that the requirement on the locking strength of the elastic hoop is low. However, in heavy trucks and large vehicles, the pull rod is often required to be capable of bearing a torque of 300-400N · m, and the conventional elastic hoop structure cannot achieve the locking effect, so that a safety accident caused by relative rotation between the tie rod and the telescopic shaft sleeve is easily caused in the driving process of the vehicle.

SUMMERY OF THE UTILITY MODEL

The first purpose of the utility model is to provide a rod-shaped article locking buckle with better locking effect.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a rod clasp, comprising:

the buckle body comprises a locking part and an adjusting part connected with the locking part, a locking area is formed by enclosing the locking part and the adjusting part, and the adjusting part is provided with an adjusting gap communicated with the locking area;

the locking piece is connected with the adjusting part and can apply force to the adjusting part to force the locking area to be increased or decreased;

the locking area comprises a first locking arc section, a second locking arc section and a linear positioning section, wherein the second locking arc section is positioned on two sides of the adjusting gap, one side of the linear positioning section is tangent to the second locking arc section, and the other side of the linear positioning section extends towards the first locking arc section.

By adopting the technical scheme, the rod-shaped object stretches into the locking area, the initial positioning is realized by utilizing the tangency of the two linear positioning sections and the outer wall of the rod-shaped object, the outer surface of the rod-shaped object cannot be completely attached to the first locking arc section due to the problem of processing precision, only partial attachment can be realized, when the locking area is gradually reduced by operating the locking part, the two linear positioning sections apply force to the rod-shaped object, so that the rod-shaped object slightly moves towards one side of the first locking arc section, the attachment area between the rod-shaped object and the first locking arc section is gradually increased, meanwhile, the second locking arc sections positioned at the two sides of the adjusting gap are also gradually increased and the attachment area of the rod-shaped object is increased, the attachment area of the whole rod-shaped object is gradually increased along with the reduction of the locking area, the attachment area is gradually increased, and the locking force on.

Preferably, the adjusting part comprises two adjusting seats arranged in a mirror image manner, the adjusting seats comprise base plates connected with the locking part and adjusting blocks connected to two sides of the base plates and turned over in opposite directions, and the locking parts are arranged on the two base plates in a penetrating manner; wherein, the interval between two regulating blocks reduces gradually from the one end of connecting to the base plate to the other end.

Through adopting above-mentioned technical scheme, the retaining member is when the application of force in two base plates, because two regulating blocks have certain slope contained angle, can avoid when the closure, two regulating block one end in the same regulation seat take place the motion of leaving mutually, better promotion closure effect.

Preferably, the substrate has an inner concave surface, and two sides of the inner concave surface form an abutting part respectively.

Through adopting above-mentioned technical scheme, the setting up of interior concave surface makes the portion of support of both sides bulge relatively, and utilize support portion and retaining member contact, reduce the area of contact between retaining member and the base plate, make the effort of retaining member concentrate on support portion, through the effort to support portion, can drive two regulating blocks on the regulation seat and take place the relative motion, increase camber, make the camber centre of a circle progressively lean on to first locking arc section, advance the laminating area of increase shaft-like thing and first locking arc section, better promotion locking effect.

Preferably, the locking member includes a bolt inserted through the two adjusting seats and a nut screwed to one end of the bolt, and the bolt includes a bolt head, and the bolt head and the end surface of the nut are abutted against the abutting portion.

By adopting the technical scheme, the two adjusting seats can be forced to move oppositely by screwing the nut, so that the locking area is reduced, and the locking force is improved; the end faces of the bolt head and the nut are respectively abutted against the abutting portion, when the nut is screwed, acting force can be concentrated on the abutting portion, and the abutting portion is close to the adjusting blocks, so that the two adjusting blocks can be driven to move oppositely, and the locking effect is improved.

Preferably, the adjustment gap increases gradually from the side communicating with the closure zone to the direction away from the closure zone.

Through adopting above-mentioned technical scheme, the retaining member is when acting on the regulation portion, when making the closure region shrink, the corresponding reduction of regulation clearance, because the one end of regulation clearance keeping away from the closure region is big mouthful end, at first made things convenient for the shaft-like thing to slide into the closure region from the direction of big mouth end, simultaneously when conflicting in one side of communicating in the closure region mutually, the closure region is in the minimum point this moment, because the regulation clearance is towards keeping away from progressively increasing in the closure region direction, make when can conflicting mutually in one side of closure region, the area of conflicting is less relatively, higher machining precision can be realized to the conflict face, and then reach better cooperation precision, promote the closure effect.

Preferably, orthographic projections of the first locking arc segment and the second locking arc segment are on the same circumferential surface.

By adopting the technical scheme, when the rod-shaped object is arranged in the locking area, the outer surface of the rod-shaped object can be well attached to the first locking arc section and the second locking arc section, and the primary positioning and pre-tightening effects are better realized.

Preferably, the button body is of a one-piece structure.

Through adopting above-mentioned technical scheme, the knot body intensity of integral type structure is higher, is difficult to take place the fracture because stress concentration in the closure deformation process, the batch production of being convenient for simultaneously.

A second object of the present invention is to provide a drawbar assembly capable of carrying a relatively high torque.

a pull rod assembly comprises a rod body and at least one telescopic rod connected to the end part of the rod body in a threaded mode, and further comprises a rod body locking buckle connected to the rod body and used for locking the rod body and the telescopic rod.

Through adopting above-mentioned technical scheme, the body of rod is in entering into the closure region in back, and two straight line location sections are tangent with the body of rod, and when the retaining member acted on the regulating part, two straight line location sections can promote the body of rod for the body of rod is progressively leaned on to first locking segmental arc, and along with the shrink of regulating part, the contact area of second locking segmental arc also gradual increase and body of rod surface increases the locking force to the body of rod simultaneously, makes frictional force increase between the body of rod and the telescopic link, improves the torsion resistance intensity of whole pull rod assembly.

To sum up, the utility model discloses a beneficial technological effect does:

1. by arranging the two linear positioning sections in the locking area, when the locking part applies force to the adjusting part, the locking part can push the rod-shaped object arranged in the locking area to move towards the first locking arc section, so that the contact area between the rod-shaped object and the first locking arc section is increased, and meanwhile, the contact area between the second locking arc section and the outer surface of the rod-shaped object is gradually increased, so that the cohesion degree of the rod-shaped object is gradually improved, and the locking effect is improved;

2. one end through with two regulating blocks sets up in opposite directions, sets up the interior concave surface on the base plate simultaneously for including concave surface both sides form relative convex portion of supporting, force to concentrate on the effort of retaining member to support to the portion, and then when shrink closure region, two regulating blocks take place small relative motion on the same regulation seat, better promotion locking effect.

Drawings

FIG. 1 is a schematic view of a lever lock buckle according to an embodiment;

FIG. 2 is a schematic view showing the installation of two adjusting bases and locking members according to the first embodiment;

FIG. 3 is a schematic structural view of a tie rod of a second embodiment;

fig. 4 is a cross-sectional view C-C of fig. 3.

In the figure, 10, the rod-shaped object locking buckle; 11. a buckle body; 111. a locking portion; 112. an adjustment section; 1121. a substrate; 1122. an adjusting block; 1123. an inner concave surface; 1124. an abutting portion; 113. a lock area; 114. a first locking arc segment; 115. a second locking arc segment; 116. a linear positioning section; 117. adjusting the clearance; 12. a locking member; 121. a bolt; 122. a bolt head; 123. a nut; 20. a rod body; 30. a telescopic rod.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example one

Referring to fig. 1 and 2 together, a rod-shaped object locking buckle includes an integrated buckle body 11 and a locking member 12 connected to the buckle body 11. The buckle body 11 includes a locking portion 111 and an adjusting portion 112 connected to the locking portion 111, the adjusting portion 112 is located at an end of the locking portion 111, a locking region 113 is formed by the locking portion 111 and the adjusting portion 112, an adjusting gap 117 communicating with the locking region 113 is provided in the adjusting portion 112, and the adjusting gap 117 gradually increases from an end communicating with the locking region 113 to a direction away from the locking region 113.

The locking area 113 is substantially circular and comprises a first locking arc 114, a second locking arc 115 located on both sides of the adjustment gap 117, and a linear positioning section 116 having one end tangent to the second locking arc 115, the other end of the linear positioning section 116 extending towards the first locking arc 114. The first locking arc section 114 and the linear positioning section 116 are both located on the inner arc surface of the locking portion 111, the second locking arc section 115 is located on the inner arc surface of the adjusting portion 112, and orthographic projections of the first locking arc section 114 and the second locking arc section 115 are located on the same circumferential surface.

The adjustment portion 112 includes two adjustment seats arranged in a mirror image, and the adjustment gap 117 is formed between the two adjustment seats. The adjusting base includes a base plate 1121 connected to the locking portion 111 and adjusting blocks 1122 connected to two sides of the base plate 1121 and turned over toward each other, and a distance between the two adjusting blocks 1122 on the same adjusting base is gradually reduced from a side connected to the base plate 1121 to a direction away from the base plate 1121.

The base plate 1121 has an inner concave surface 1123, and two sides of the inner concave surface 1123 form relatively protruding abutting portions 1124, preferably, the abutting portions 1124 are located at the connecting position of the adjusting block 1122 and the base plate 1121 by the curvature of the inner concave surface 1123.

The locker 12 includes a bolt 121 and a nut 123 threadedly coupled with the bolt 121. The two substrates 1121 are respectively provided with a through hole for the bolt 121 to pass through, the bolt 121 has a head 122, and the head 122 and an end surface of the nut 123 have a certain surface area, which can respectively abut against the two abutting portions 1124 on the substrates 1121.

When the rod-shaped object locking buckle 10 is used, a rod-shaped object to be locked is clamped into the locking area 113 in advance, the rod-shaped object can directly penetrate into the locking area 113 during clamping, or the rod-shaped object can slide into the locking area 113 from one side of the adjusting gap 117 in a guiding manner, and the rod-shaped object is tangent to the two linear positioning sections 116 to realize pre-fixing. Subsequently, the locking member 12 is installed, the nut 123 is screwed, at this time, the two adjusting seats move towards each other, the adjusting gap 117 is gradually reduced, the area of the locking region 113 is also gradually reduced, and during the gradual reduction of the area of the locking region 113, the two linear positioning sections 116 push the rod-shaped object placed in the locking region 113 to move towards one side of the first locking arc section 114, so as to continuously increase the attaching area between the rod-shaped object and the first locking arc section 114. Secondly, retaining member 12 when acting on the portion 1124 that supports on base plate 1121, can drive two regulation pieces 1122 on the same regulation seat and take place slight opposite movement, second locking segmental arc 115 takes place the deformation along with it, the camber increases step by step for the camber centre of a circle is toward moving near first locking segmental arc 114 one side, promote the further increase of shaft-like thing and the laminating area of first locking segmental arc 114, better promotion locking effect, according to the locking demand, adjusting nut 123 can with the degree of screwing up of bolt 121.

Example two

Referring to fig. 3 and 4 together, an automobile drawbar includes a bar body 20 and at least one telescopic rod 30 threadedly coupled to one end of the bar body 20. The rod 20 is further connected to the rod locking buckle 10 of the first embodiment, and the rod 20 is locked in the locking region 113.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. A rod clasp, comprising:

the buckle body (11), the buckle body (11) comprises a locking portion (111) and an adjusting portion (112) connected to the locking portion (111), a locking area (113) is formed by enclosing the locking portion (111) and the adjusting portion (112), and the adjusting portion (112) is provided with an adjusting gap (117) communicated with the locking area (113);

the locking piece (12) is connected with the adjusting part (112) and can apply force to the adjusting part (112) to forcibly increase or decrease the locking area (113);

the locking area (113) comprises a first locking arc section (114), a second locking arc section (115) positioned at two sides of the adjusting gap (117), and a linear positioning section (116), wherein one side of the linear positioning section (116) is tangent to the second locking arc section (115), and the other side of the linear positioning section extends towards the first locking arc section (114).

2. The rod-shaped object locking buckle according to claim 1, wherein the adjusting part (112) comprises two adjusting seats arranged in a mirror image manner, the adjusting seats comprise a base plate (1121) connected with the locking part (111) and adjusting blocks (1122) connected to two sides of the base plate (1121) and turned over toward each other, and the locking part (12) is arranged on the two base plates (1121) in a penetrating manner; wherein, the distance between the two adjusting blocks (1122) is gradually reduced from one end connected with the substrate (1121) to the other end.

3. The rod clasp of claim 2, wherein the base plate (1121) has an inner concave surface (1123), and an abutting portion (1124) is formed on each of both sides of the inner concave surface (1123).

4. The rod-shaped object locking buckle according to claim 3, wherein the locking member (12) comprises a bolt (121) passing through the two adjusting seats and a nut (123) screwed to one end of the bolt (121), the bolt (121) comprises a bolt head (122), and the bolt head (122) and the end surface of the nut (123) are abutted against the abutting portion (1124).

5. The rod clasp of claim 1, wherein the adjustment gap (117) increases progressively from the side communicating with the locking region (113) in a direction away from the locking region (113).

6. The rod clasp of claim 1, wherein the orthographic projections of the first locking arc (114) and the second locking arc (115) are on the same circumferential surface.

7. The rod clasp of claim 1 wherein the clasp body (11) is of one-piece construction.

8. A rod assembly comprising a rod (20) and at least one telescopic rod (30) screwed to an end of the rod (20), wherein the rod assembly further comprises a rod locking buckle (10) connected to the rod (20) for locking the rod (20) to the telescopic rod (30) according to any one of claims 1 to 7.