CN214870164U

CN214870164U - Bolt unilateral tightening assembly

Info

Publication number: CN214870164U
Application number: CN202121093148.6U
Authority: CN
Inventors: 曹港; 史建辉; 刘勇
Original assignee: Hunan Sany Automobile Body Co ltd
Current assignee: Hunan Sany Automobile Body Co ltd
Priority date: 2021-05-20
Filing date: 2021-05-20
Publication date: 2021-11-26
Anticipated expiration: 2031-05-20

Abstract

The utility model relates to a bolt-up technical field provides a subassembly is screwed up to bolt unilateral, include: the bottom end of the bolt is provided with a positioning block; the nut is sleeved on the bolt; the top end of the sleeve is sleeved on the nut, and a guide slide way arranged along the length direction of the sleeve is arranged in the sleeve; a fixed member slidably disposed within the guide track, the sleeve being rotatable relative to the fixed member; and the top end of the fixed component is provided with a positioning groove matched with the positioning block and used for fixing the bolt. The utility model discloses need not to carry out big processing change to bolt structure, under the prerequisite that does not reduce bolt intensity, can realize that the unilateral of bolt is screwed up, have simple structure, characteristics with low costs and convenient operation.

Description

Bolt unilateral tightening assembly

Technical Field

The utility model relates to a bolt-up technical field especially relates to a subassembly is screwed up to bolt unilateral.

Background

At present, when fastening a bolt, a set of bolt and nut needs two people to cooperate when tightening to accomplish the installation, needs two sets of tightening tools to tighten bolt and nut respectively in the both sides of work piece, and is with high costs and time-consuming and laborious to when some narrow spaces, can't use tightening tools such as electric torch or spanner to tighten. In order to solve the above problems, for example, patent No. CN201710783800.9 discloses a one-side tightening bolt for sealing a joint area, which is manufactured by forming a through hole by hollowing out the bolt itself, and is provided with a pulling joint, a core bar, and the like of a ferromagnetic material to be tightened one-side. However, the bolt needs to be hollowed out before the bolt is screwed, the strength of the bolt is greatly weakened, the fastening strength is reduced, the change of the bolt structure is large, a good fastening effect cannot be achieved, the whole set of screwing structure is complex, the installation is complex, and the cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model provides a subassembly is screwed up to bolt unilateral sets up the locating piece and passes through the sleeve through the bottom at the bolt, need not to carry out big processing change to the bolt structure, under the prerequisite that does not reduce bolt intensity, can realize that the unilateral of bolt is screwed up, has simple structure, with low costs and convenient operation's characteristics.

The utility model provides a subassembly is screwed up to bolt unilateral, include: the bottom end of the bolt is provided with a positioning block; the nut is sleeved on the bolt; the top end of the sleeve is sleeved on the nut, and a guide slide way arranged along the length direction of the sleeve is arranged in the sleeve; a fixed member slidably disposed within the guide track, the sleeve being rotatable relative to the fixed member; and the top end of the fixed component is provided with a positioning groove matched with the positioning block and used for fixing the bolt.

According to the utility model provides a pair of subassembly is screwed up to bolt unilateral still includes the butt piece, the part of butt piece is followed telescopic bottom stretches into in the direction slide with the bottom butt of fixed component.

According to the utility model provides a pair of subassembly is screwed up to bolt unilateral, the bottom of fixed component is prismoid, the top of butt piece be equipped with the recess of fixed component's bottom looks adaptation is used for fixing the fixed component.

According to the utility model provides a pair of subassembly is screwed up to bolt unilateral, the butt piece is cylindrical, just the sleeve is relative the butt piece is rotatable.

According to the utility model provides a pair of subassembly is screwed up to bolt unilateral, telescopic passageway is reducing structure, include the direction slide with be used for holding the chamber that holds of nut, it is located to hold the chamber the upper portion of direction slide and with direction slide intercommunication, just the internal diameter that holds the chamber is greater than the internal diameter of direction slide.

According to the utility model provides a pair of subassembly is screwed up to bolt unilateral, telescopic top be equipped with nut appearance assorted mounting hole.

According to the utility model provides a pair of subassembly is screwed up to bolt unilateral, the guide way the inner wall with the outer wall of fixed component is circular.

According to the utility model provides a pair of subassembly is screwed up to bolt unilateral, the locating piece is the polygon.

According to the utility model provides a pair of subassembly is screwed up to bolt unilateral, the locating piece is square.

According to the utility model provides a pair of subassembly is screwed up to bolt unilateral, the coincidence of bolt, locating piece and fixed component's central line.

The utility model provides a subassembly is screwed up to bolt unilateral sets up the locating piece through the bottom at the bolt, sets up fixed component in the sleeve and fixes the locating piece to fix the bolt, then tighten the nut through revolving wrong sleeve, need not to carry out big processing change to the bolt structure, under the prerequisite that does not reduce bolt intensity, can realize that the unilateral of bolt is screwed up, has simple structure, with low costs and convenient operation's characteristics.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings required for the embodiments or the prior art descriptions, and obviously, the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of a bolt unilateral tightening assembly provided by the present invention;

reference numerals:

1: a workpiece; 2: a bolt; 3: positioning blocks;

4: a sleeve; 5: a guide slide way; 6: a fixing member;

7: positioning a groove; 8: an abutting member; 9: an accommodating chamber;

10: and a nut.

Detailed Description

To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only used for convenience of description and simplification of the description of the embodiments of the present invention, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the embodiments of the present invention.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

According to the utility model discloses an embodiment, as shown in FIG. 1, the utility model provides a bolt unilateral tightening subassembly mainly includes: bolt 2, nut 10, sleeve 4 and fixing member 6. Wherein, the bottom end of the bolt 2 is provided with a positioning block 3; when the workpiece 1 is installed, the bolt 2 penetrates from the upper end of the workpiece 1 to the lower end of the workpiece 1, the nut 10 is sleeved at the lower part of the bolt 2, and the heads of the nut 10 and the bolt 2 are respectively positioned at two sides of the workpiece 1; the top end of the sleeve 4 is sleeved on the outer wall of the nut 10, the bottom end of the bolt 2 extends into the sleeve 4, and a guide slideway 5 arranged along the length direction of the sleeve 4 is arranged in the sleeve 4; the fixed member 6 is slidably arranged in the guide slideway 5, and the sleeve 4 can rotate relative to the fixed member 6; the top end of the fixed component 6 is provided with a positioning groove 7 matched with the positioning block 3 for fixing the bolt 2.

The utility model provides a subassembly is screwed up to bolt unilateral, set up locating piece 3 through the bottom at bolt 2, and set up the fixed component 6 that has constant head tank 7 in sleeve 4, set up locating piece 3 in constant head tank 7 in order to fix locating piece 3, and then fix bolt 2, then screw up nut 10 through revolving wrong sleeve 4, owing to revolving the in-process of revolving wrong nut 10, nut 10 up moves, therefore, the corresponding needs of fixed component 6 slide, with locating piece 3 of real-time fixing bolt 2, thereby realize fine fastening effect. Therefore, the utility model discloses need not to carry out big processing change to bolt 2 structure, under the prerequisite that does not reduce 2 intensity of bolt, can realize that bolt 2's unilateral is screwed up, have simple structure, characteristics with low costs and convenient operation.

In one embodiment, the length of the fixing member 6 is greater than the length of the guide runner 5, such that a portion of the fixing member 6 is located outside the sleeve 4, so that an operator can fix the fixing member 6 by a tightening tool and then screw the sleeve 4.

In another embodiment, different from the above embodiments, the length of the fixing member 6 is smaller than the length of the guide chute 5, the bolt unilateral tightening assembly of the present invention further includes an abutting part 8, a portion of the abutting part 8 extends into the guide chute 5 from the bottom end of the sleeve 4 to abut against the bottom end of the fixing member 6, and the fixing of the fixing member 6 is realized by the fixing abutting part 8.

Specifically, the specific shape of the bottom end of the fixing member 6 is not particularly limited, and may be other than circular arc, as long as the fixing member can play a role of fixing connection, such as pyramid, frustum of pyramid, etc., in this example, the bottom end of the fixing member 6 is frustum of pyramid, and the top end of the abutting piece 8 is provided with a groove adapted to the bottom end of the fixing member 6 for fixing the fixing member 6.

Also, the abutment 8 may be cylindrical or square or the like and the sleeve 4 may be rotatable relative to the abutment 8, when the abutment 8 extends into the guide ramp 5 of the sleeve 4, the rotation of the sleeve 4 should not be affected.

According to the utility model discloses an embodiment, sleeve 4's passageway is reducing structure, including direction slide 5 with be used for holding the chamber 9 that holds of nut 10, hold the chamber 9 and be located the upper portion of direction slide 5 and communicate with direction slide 5, and the internal diameter that holds chamber 9 is greater than the internal diameter of direction slide 5, the sleeve 4 cover of being convenient for is located on nut 10. It should be understood that the top end of the sleeve 4 is provided with a mounting hole matching the shape of the nut 10 for butt joint, and the nut 10 is rotated by screwing the sleeve 4 to realize screwing.

According to the utility model discloses an embodiment, the inner wall of direction slide 5 and the outer wall of fixed component 6 are circular, realize sleeve 4 and fixed component 6's relative rotation, and do not influence the fixed of fixed component 6.

According to the utility model discloses an embodiment, locating piece 3 is the polygon, realizes the fixed of locating piece 3 through fixed component 6.

In an example, the utility model discloses locating piece 3 is square, and processing is convenient, and the close specification bolt 2 of being convenient for uses square locating piece 3 of same specification size and the sleeve 4 that matches with it, improves the utility model discloses the adaptability scope of subassembly is screwed up to the bolt unilateral.

According to the utility model discloses an embodiment, the utility model discloses bolt 2, locating piece 3 and fixed component 6's central line coincidence to improve fastening effect.

To sum up, the utility model provides a subassembly is screwed up to bolt unilateral sets up locating piece 3 and passes through sleeve 4 through the bottom at bolt 2, need not to carry out big processing change to bolt 2 structure, under the prerequisite that does not reduce bolt 2 intensity, can realize that bolt 2's unilateral is screwed up, has simple structure, characteristics with low costs and convenient operation.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A bolt unilateral tightening assembly, comprising:

the bottom end of the bolt is provided with a positioning block;

the nut is sleeved on the bolt;

the top end of the sleeve is sleeved on the nut, and a guide slide way arranged along the length direction of the sleeve is arranged in the sleeve;

a fixed member slidably disposed within the guide track, the sleeve being rotatable relative to the fixed member; and the top end of the fixed component is provided with a positioning groove matched with the positioning block and used for fixing the bolt.

2. The bolt unilaterally tightening assembly according to claim 1, further comprising an abutment, a portion of which extends from the bottom end of the sleeve into the guide channel in abutment with the bottom end of the fixing member.

3. The bolt unilateral tightening assembly according to claim 2, wherein the bottom end of the fixing member is pyramid-shaped, and the top end of the abutment member is provided with a groove adapted to the bottom end of the fixing member for fixing the fixing member.

4. The bolt unilaterally tightening assembly according to claim 2, wherein the abutment member is cylindrical and the sleeve is rotatable relative to the abutment member.

5. The bolt unilateral tightening assembly according to claim 1, wherein the passage of the sleeve is of a diameter-variable structure and includes the guide slideway and an accommodating cavity for accommodating the nut, the accommodating cavity is located at the upper part of the guide slideway and communicated with the guide slideway, and the inner diameter of the accommodating cavity is larger than that of the guide slideway.

6. The bolt unilaterally tightening assembly according to claim 1, wherein the top end of the sleeve is provided with a mounting hole matching the profile of the nut.

7. The bolt unilaterally tightening assembly according to claim 1, wherein the inner wall of the guide runner and the outer wall of the fixing member are circular.

8. The bolt unilaterally tightening assembly according to claim 1, wherein the locating block is polygonal.

9. The bolt unilaterally tightening assembly according to claim 7, wherein the locating block is square.

10. The bolt unilaterally tightening assembly according to any one of claims 1-9, wherein centerlines of the bolt, the locating block, and the securing member coincide.