CN213730376U

CN213730376U - Expansion screw assembling tool

Info

Publication number: CN213730376U
Application number: CN202022164823.1U
Authority: CN
Inventors: 汤淼; 陈垣晓
Original assignee: FAW Volkswagen Automotive Co Ltd
Current assignee: FAW Volkswagen Automotive Co Ltd
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-07-20
Anticipated expiration: 2030-09-28

Abstract

The utility model provides an expansion screw assembling tool, include: the push rod comprises a pressing part, a working part and a guide rail, the pressing part is arranged at the first end of the push rod, the working part is arranged at the second end of the push rod, and the guide rail is arranged between the first end of the push rod and the second end of the push rod; the loop bar, the loop bar cup joints the push rod outside, just press the splenium to follow stretch out the first end of loop bar, the loop bar includes: the matching part is matched with the guide rail, so that the push rod relatively moves along the guide rail relative to the loop bar; the limiting part is used for fixing an expansion screw to be assembled and is arranged at the second end of the loop bar; when pressing the splenium, the push rod is relative the loop bar moves along the guide rail, the work portion stretches into spacing portion supports with waiting to assemble the inflation screw and leans on. The utility model discloses well push rod and loop bar pass through the guide rail cooperation and realize the assembly to the inflation screw.

Description

Expansion screw assembling tool

Technical Field

The utility model relates to a mounting tool technical field, concretely relates to inflation screw assembling tool.

Background

The installation of the interior trim guard plate of the automobile production enterprise tends to be simple and direct nowadays, and the interior trim guard plate is usually fixed by adopting an expansion screw made of a plastic material, so that compared with the traditional working method of fastening by using a metal screw, the labor productivity is effectively improved, and the production cost is reduced; but simultaneously because need push the expand plug manual work in the fabrication hole when the inflation screw assembly of plastics material, long-term this kind of mode installation is big to operator's hand injury. In addition, when the expansion screw is assembled, if a small hammer and other tools are used for assisting assembly, the inner decoration guard plate and the automobile body metal plate are easily damaged, so that the production cost is increased, the repair cost is increased, the production efficiency is reduced, and the working strength of an operator is increased.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one aspect of the above problems, the present invention provides an expansion screw assembling tool, including: the push rod comprises a pressing part, a working part and a guide rail, the pressing part is arranged at the first end of the push rod, the working part is arranged at the second end of the push rod, and the guide rail is arranged between the first end of the push rod and the second end of the push rod; the loop bar, the loop bar cup joints the push rod outside, just press the splenium to follow stretch out the first end of loop bar, the loop bar includes: the matching part is matched with the guide rail, so that the push rod relatively moves along the guide rail relative to the loop bar; the limiting part is used for fixing an expansion screw to be assembled and is arranged at the second end of the loop bar; when the pressing portion is pressed, the push rod moves along the guide rail relative to the sleeve rod, and the working portion extends into the limiting portion and abuts against the expansion screw to be assembled.

Preferably, the guide rail extends axially along the push rod.

Preferably, the fitting portion is fixedly provided on the loop bar.

Preferably, the guide rail is a strip-shaped through hole formed in the push rod.

Preferably, the matching part is a through hole formed in the side wall of the loop bar, and the matching part is connected with the guide rail through a fastener.

Preferably, the fastener is fixedly connected with the matching part, and at least part of the fastener abuts against the side wall of the strip-shaped through hole of the guide rail.

Preferably, the loop bar further comprises a limiting sleeve fixedly arranged on one side close to the first end of the loop bar, the matching part and the fastening part are arranged inside the limiting sleeve, and the limiting sleeve is used for limiting the movement of the fastening part relative to the matching part.

Preferably, at least part of the inner peripheral wall of the limiting sleeve is provided with an internal thread, the outer peripheral wall of the loop bar is provided with an external thread matched with the internal thread, and the internal thread and the external thread are matched to enable the limiting sleeve to be in threaded connection with the loop bar.

Preferably, the push rod further comprises an elastic member, the elastic member is arranged in the loop bar and is used for providing restoring force of the push rod, the push rod is provided with a first abutting portion, the loop bar is provided with a second abutting portion, and two ends of the elastic member abut against the first abutting portion and the second abutting portion respectively.

Preferably, the push rod has a first rod portion and a second rod portion, a first end of the first rod portion is provided with a pressing portion, a second end of the first rod portion is connected with a first end of the second rod portion, a second end of the second rod portion is provided with a working portion, the first rod portion and the second rod portion are coaxially arranged, the diameter of the first rod portion is larger than that of the second rod portion, and a second end of the first rod portion is provided with a first abutting portion.

Preferably, the elastic member is sleeved on the second rod part.

Preferably, the loop bar further comprises an anti-slip piece, and the anti-slip piece is sleeved on the loop bar.

The utility model discloses inflation screw assembler has following beneficial effect:

(1) the expansion screw is fixed through the limiting part, the assembly of the expansion screw is realized through the sleeve rod and the push rod which can move relatively to the pressing part, the acting area of the application of the hand is increased through the contact surface provided by the pressing part, and the damage to the hand caused by the expansion screw directly pressed by the hand is avoided; meanwhile, the distance between the force application point and the vehicle body is increased by the expansion screw assembling tool, and the damage risk to the vehicle body is reduced.

(2) The push rod is reset by arranging the elastic piece, so that the time cost consumed by manual reset operation is reduced, and the working efficiency is improved.

(3) The friction force of the holding part is increased by arranging the anti-skid piece, and the stability in the operation process is increased.

Drawings

For a better understanding of the above and other objects, features, advantages and functions of the present invention, reference should be made to the embodiments illustrated in the drawings. Like reference numerals in the drawings refer to like parts. It will be appreciated by persons skilled in the art that the drawings are intended to illustrate preferred embodiments of the invention without any limiting effect on the scope of the invention, and that the various components in the drawings are not to scale.

Fig. 1 shows a schematic structural view of an expansion screw assembly tool according to an embodiment of the present invention;

fig. 2 shows another schematic structural view of an expansion screw assembly tool according to an embodiment of the present invention;

fig. 3 shows an application scenario schematic diagram of the expansion screw assembling tool according to an embodiment of the present invention.

Description of reference numerals:

10. a push rod; 101. a first rod portion; 102. a second rod portion; 11. a pressing part; 12. a working part; 13. a guide rail; 20. a loop bar; 21. a fitting portion; 22. a limiting part; 23. a fastener; 24. a restraining sleeve; 25. an anti-slip member; 30. an elastic member; 40. an expansion screw; 50. vehicle interior trim.

Detailed Description

Exemplary embodiments of the present disclosure are described below with reference to the accompanying drawings, in which various details of the embodiments of the disclosure are included to assist understanding, and which are to be considered as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present disclosure. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.

The term "include" and variations thereof as used herein is meant to be inclusive in an open-ended manner, i.e., "including but not limited to". Unless specifically stated otherwise, the term "or" means "and/or". The term "based on" means "based at least in part on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first," "second," and the like may refer to different or the same object. Other explicit and implicit definitions are also possible below.

To at least partially solve one or more of the above problems and other potential problems, an embodiment of the present disclosure provides an expansion screw assembling tool, including a push rod 10 and a loop bar 20, the push rod 10 including a pressing portion 11, a working portion 12, and a guide rail 13, the pressing portion 11 being disposed at a first end of the push rod 10, the working portion 12 being disposed at a second end of the push rod 10, and the guide rail 13 being disposed between the first end of the push rod 10 and the second end of the push rod 10; loop bar 20 cup joints outside push rod 10, and presses a portion 11 to stretch out from the first end of loop bar 20, and loop bar 20 includes: the matching part 21 is matched with the guide rail 13, so that the push rod 10 relatively moves along the guide rail 13 relative to the loop bar 20; the limiting part 22 is used for fixing an expansion screw to be assembled, and the limiting part 22 is arranged at the second end of the loop bar 20; when the pressing part 11 is pressed, the push rod 10 moves along the guide rail 13 relative to the loop bar 20, and the working part 12 extends into the limiting part 22 to abut against the expansion screw to be assembled.

Specifically, as shown in fig. 1, the push rod 10 is a cylindrical structure, the working part 12 is an end face of a first end of the cylindrical structure, and the working part 12 is used for contacting with an expansion screw to be assembled; the pressing portion 11 is disposed at the second end of the push rod 10, the pressing portion 11 is used for providing a force acting surface for receiving an external force, the pressing portion 11 is of a circular disk structure coaxial with the push rod 10, and in other embodiments, the pressing portion 11 may also be of a structural design with other shapes, for example, a sheet structure with a cross section of a quadrangle, a hexagon, or the like.

The loop bar 20 is a cylindrical shell structure, the first end of the push rod 10 extends into the loop bar 20 from the second end of the loop bar 20, and the pressing part 11 of the push rod 10 extends out of the loop bar 20 from the second end of the loop bar 20, and the matching part 21 arranged on the loop bar 20 is matched with the guide rail 13 to realize the movable connection of the push rod 10 and the loop bar 20, so that the movement of the push rod 10 relative to the loop bar 20 is limited in the extending direction of the guide rail 13. Spacing portion 22 sets up the second end at loop bar 20, spacing portion 22 is for having the shell structure of ring terminal surface, spacing portion 22 inside and loop bar 20's inside intercommunication, when carrying out the inflation screw assembly, support spacing portion 22's ring terminal surface and lean on the nut of waiting to assemble the inflation screw, make the screw bulge of waiting to assemble the inflation screw stretch into the cavity that spacing portion 22's shell structure formed, thereby the restriction is waited to assemble the removal of inflation screw, improve assembly efficiency.

As shown in an application scenario diagram of the expansion screw assembling tool shown in fig. 3, the expansion screw 40 is placed in a corresponding assembling hole on the vehicle interior 50, the limiting portion 22 of the expansion screw assembling tool abuts against a nut of the expansion screw 40, so that a screw end of the expansion screw 40 extends into the limiting portion 22, and when the loop bar 20 is held, a force is applied to the pressing portion 11, at this time, the push rod 10 moves along the guide rail 13 relative to the loop bar 20 under the action of an external force, the working portion 12 extends into the limiting portion 22 from the second end of the loop bar 20 and acts on the screw of the expansion screw 40, and the screw is pressed into a sleeve of the expansion screw to assemble the expansion screw 40.

It should be noted that in other embodiments, the push rod 10 may also adopt a multi-prismatic structure, and accordingly, the loop bar 20 may be a cylindrical shell structure having an inner through hole corresponding to the multi-prismatic structure, or may be another shell structure having an inner through hole corresponding to the multi-prismatic structure.

In some embodiments, the guide track 13 extends axially along the push rod 10.

Specifically, as shown in fig. 1 and 2, the guide rail 13 extends along the axial direction of the push rod 10, so that when a pressure is applied to the pressing portion 11, the push rod 10 moves in the axial direction relative to the sleeve rod 20 under the action of an external force, so that the force is distributed in the axial direction of the push rod 10, and further acts on the screw of the expansion screw 40, thereby reducing the force dispersion and improving the action effect.

In other embodiments, the guide rail 13 may be a guide track spirally distributed around the circumference of the push rod 10, and when an external force is applied to the pressing portion 11, the push rod 10 moves in the axial direction relative to the sleeve rod 20 while rotating around the axis.

In some embodiments, the mating portion 21 is fixedly disposed on the stem 20.

Specifically, the matching portion 21 is a sliding block fixedly arranged on the inner wall of the loop bar 20, the guide rail 13 is a groove formed in the outer wall of the push rod 10, the sliding block corresponding to the matching portion 21 is matched with the groove corresponding to the guide rail 13, so that when the push rod 10 is pressed by an external force, the sliding block slides in the groove along the extending direction of the groove, and further, the push rod 10 moves along the axis relative to the loop bar 20.

In some embodiments, the guide rail 13 is a strip-shaped through hole formed on the push rod 10.

Specifically, as shown in fig. 2, the guide rail 13 is a strip-shaped through hole passing through the axis of the push rod 10, the strip-shaped through hole extends along the axis of the push rod 10, the matching portion 21 of the loop bar 20 corresponds to two sides of the strip-shaped through hole of the guide rail 13, for example, the matching portion 21 is two sliding blocks arranged on the inner wall of the loop bar 20, the two sliding blocks are symmetrical about the axis of the loop bar 20, and at least part of the sliding blocks abuts against the inner wall of the strip-shaped through hole, so that the push rod 10 moves relative to the loop bar 20 along the extending direction of the guide rail 13.

In some embodiments, the fitting portion 21 is a through hole opened on a sidewall of the loop bar 20, and the fitting portion 21 is connected with the guide rail 13 by a fastener 23.

Specifically, as shown in fig. 2, the matching portion 21 is two circular through holes symmetrically formed in the side wall of the loop bar 20, the circular through holes of the matching portion 21 are communicated with the strip-shaped through holes of the guide rail 13, and the fastening member 23 sequentially penetrates through the circular through holes of the matching portion and the strip-shaped through holes of the guide rail 13, so that the circular through holes and the strip-shaped through holes are always communicated. Thereby achieving the restriction of the movement of the push rod 10 with respect to the stem 20.

In some embodiments, the fastening member 23 is fixedly connected to the fitting portion 21, and the fastening member 23 at least partially abuts against a sidewall of the strip-shaped through hole of the guide rail 13.

Specifically, as shown in fig. 2, the fastening member 23 is a screw, the screw penetrates through a circular through hole corresponding to the matching portion 21 and a strip-shaped through hole corresponding to the guide rail 13, a main body portion of the screw is disposed in the strip-shaped through hole, a blocking member formed by the matching portion 21 and the fastening member 23 forms a movement restriction on the push rod 10, so that when the push rod 10 moves to two ends of the strip-shaped through hole of the guide rail 13 relative to the loop bar 20, a side wall of the screw abuts against a side wall of an end portion of the strip-shaped through hole, further movement of the push rod 10 is blocked, and the push rod 10 is prevented from falling off from the loop bar 20.

In other embodiments, an internal thread is formed on the inner wall of the circular through hole of the matching portion 21, and the fastening member 23 is a screw having an external thread matching with the internal thread, and the screw is fixed in the matching portion 21 through thread matching, and at the same time, the end of the screw at least partially extends into the strip-shaped through hole of the guide rail 13, so that the screw can abut against the end side wall of the strip-shaped through hole in the moving process of the push rod 10, so as to form a movement limitation on the push rod 10.

In some embodiments, the stem 20 further comprises a restraining sleeve 24, the restraining sleeve 24 is fixedly disposed at a side near the first end of the stem 20, the engaging portion 21 and the fastening member 23 are disposed inside the restraining sleeve 24, and the restraining sleeve 24 is used for restraining the fastening member 23 from moving relative to the engaging portion 21.

Specifically, as shown in fig. 2, the limiting sleeve 24 is sleeved on the sleeve rod 20, and the inner wall of the limiting sleeve 24 is tightly connected with the outer wall of the sleeve rod 20, so that the screw end of the fastening member 23 abuts against the inner wall of the limiting sleeve 24, thereby limiting the movement of the fastening member 23, preventing the fastening member 23 from falling off from the fitting portion 21, and increasing the overall stability of the expansion screw assembling tool.

In some embodiments, at least a portion of the inner circumferential wall of the restraining sleeve 24 is provided with internal threads, and the outer circumferential wall of the stem 20 is provided with external threads that mate with the internal threads, the internal and external threads cooperating to threadably engage the restraining sleeve 24 with the stem 20.

Specifically, restriction cover 24 and loop bar 20 realize the spiro union through the adaptation screw thread of adjacent lateral wall to make restriction cover 24 and loop bar 20 fixed connection, simultaneously, the threaded connection mode of adaptation has realized restricting cover 24 and loop bar 20 detachable connection, realizes dismantling restriction cover 24 through screwing the operation promptly, the convenient replacement to fastener 23.

In some embodiments, the elastic member 30 is further included, the elastic member 30 is disposed in the sleeve 20, the elastic member 30 is used for providing the restoring force of the push rod 10, wherein the push rod 10 has a first abutting portion, the sleeve 20 has a second abutting portion, and two ends of the elastic member 30 abut against the first abutting portion and the second abutting portion respectively.

Specifically, as shown in fig. 2, the elastic member 30 is a spring, two ends of the spring respectively abut against a first abutting portion and a second abutting portion, when the push rod 10 moves relative to the loop bar 20 under the action of an external force, a relative distance between the first abutting portion and the second abutting portion is reduced, the spring is compressed, when the external force applied to the push rod 10 disappears, the spring moves the push rod 10 relative to the loop bar 120 under the action of a restoring force, and the relative distance between the first abutting portion and the second abutting portion gradually restores to before the application of the external force. The elastic piece 30 realizes automatic reset of the push rod 10, and is convenient to directly operate when being used again, thereby being beneficial to improving the assembly efficiency.

In some embodiments, the putter 10 has a first rod portion 101 and a second rod portion 102, a first end of the first rod portion 101 is provided with the pressing portion 11, a second end of the first rod portion 101 is connected with a first end of the second rod portion 102, a second end of the second rod portion 102 is provided with the working portion 12, the first rod portion 101 and the second rod portion 102 are coaxially arranged, a diameter of the first rod portion 101 is larger than a diameter of the second rod portion 102, and a second end of the first rod portion 101 is provided with the first abutting portion.

Specifically, as shown in fig. 2, the first rod portion 101 and the second rod portion 102, which are coaxially disposed, form an annular end surface at the junction thereof, the annular end surface forms a first abutting portion, one free end of the elastic member 30 abuts against the annular end surface, correspondingly, the junction of the second end of the loop bar 20 and the limiting portion 22 forms another annular end surface corresponding to the first abutting portion, i.e., a second abutting portion, and the other free end of the elastic member 30 abuts against the second abutting portion, wherein the elastic member 30 may be one spring, or two or more springs disposed in parallel to the axial direction of the push rod 10.

In some embodiments, the resilient member 30 is disposed over the second shaft portion 102.

Specifically, the elastic member 30 is a spring, and the spring is sleeved on the second rod portion 102 of the push rod 10, so that the spring is prevented from shaking in the sleeve rod 20, and the stability of the expansion screw assembling tool is improved.

In some embodiments, the sleeve rod 20 further comprises a slip-preventing member 25, and the slip-preventing member 25 is sleeved on the sleeve rod 20.

Specifically, as shown in fig. 1 and fig. 2, the outer wall of the sleeve 20 is sleeved with a slip-preventing member 25, wherein the slip-preventing member 25 may be made of rubber material with embossed patterns on the surface, or plastic material such as polyethylene with slip-preventing particles on the surface. In the present embodiment, the anti-slip means 25 is fixedly arranged on the loop bar 20 by means of circumferential covering. In other embodiments, the anti-slip member 25 may be a ring-shaped anti-slip member spaced apart from the outer wall of the sleeve 20, or may be a plurality of strip-shaped anti-slip members uniformly distributed parallel to the axis of the sleeve 20. Of course, in other embodiments, the anti-slip members 25 may be a combination of anti-slip components disposed on the outer wall of the stem 20 in any pattern.

Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the technical improvements to the market, or to enable others of ordinary skill in the art to understand the disclosure.

Claims

1. An expansion screw assembly tool, comprising:

the push rod (10) comprises a pressing part (11), a working part (12) and a guide rail (13), the pressing part (11) is arranged at the first end of the push rod (10), the working part (12) is arranged at the second end of the push rod (10), and the guide rail (13) is arranged between the first end of the push rod (10) and the second end of the push rod (10);

the loop bar (20), loop bar (20) cup joint in push rod (10) outside, and press portion (11) to stretch out from the first end of loop bar (20), loop bar (20) includes:

the matching part (21) is matched with the guide rail (13) to enable the push rod (10) to move relative to the loop bar (20) along the guide rail (13);

the limiting part (22), the limiting part (22) is used for fixing the expansion screw to be assembled, and the limiting part (22) is arranged at the second end of the loop bar (20);

when the pressing portion (11) is pressed, the push rod (10) moves along the guide rail (13) relative to the sleeve rod (20), and the working portion (12) extends into the limiting portion (22) to abut against the expansion screw to be assembled.

2. Tool according to claim 1, characterized in that the guide rail (13) extends axially along the push rod (10).

3. Tool according to claim 2, characterized in that the engagement portion (21) is fixedly arranged on the shank (20).

4. Tool according to claim 2, characterized in that the guide (13) is a strip-shaped through hole provided on the push rod (10).

5. Tool according to claim 4, characterized in that the engagement part (21) is a through hole opening in the side wall of the shank (20), the engagement part (21) being connected to the guide rail (13) by means of a fastening element (23).

6. Tool according to claim 5, characterized in that the fastening element (23) is fixedly connected to the fitting part (21) and that the fastening element (23) at least partially abuts against a side wall of the strip-shaped through hole of the guide rail (13).

7. The tool according to claim 6, wherein the shank (20) further comprises a restraining sleeve (24), the restraining sleeve (24) being fixedly disposed on a side adjacent to the first end of the shank (20), the engaging portion (21) and the fastener (23) being disposed within the restraining sleeve (24), the restraining sleeve (24) being adapted to restrain movement of the fastener (23) relative to the engaging portion (21).

8. Tool according to claim 7, characterized in that at least part of the inner peripheral wall of the restraining sleeve (24) is provided with an internal thread and the outer peripheral wall of the shank (20) is provided with an external thread adapted to the internal thread, the internal thread and the external thread cooperating to screw the restraining sleeve (24) to the shank (20).

9. The tool according to claim 1, further comprising a resilient member (30), wherein the resilient member (30) is disposed within the sleeve (20), and wherein the resilient member (30) is configured to provide a restoring force to the push rod (10), wherein the push rod (10) has a first abutting portion, the sleeve (20) has a second abutting portion, and wherein the resilient member (30) abuts against the first abutting portion and the second abutting portion at two ends thereof.

10. The tool according to claim 9, wherein the push rod (10) has a first rod part (101) and a second rod part (102), a first end of the first rod part (101) is provided with a pressing part (11), a second end of the first rod part (101) is connected with a first end of the second rod part (102), a second end of the second rod part (102) is provided with a working part (12), the first rod part (101) and the second rod part (102) are coaxially arranged, a diameter of the first rod part (101) is larger than a diameter of the second rod part (102), and a second end of the first rod part (101) is provided with the first abutting part.

11. The tool according to claim 10, wherein said resilient member (30) is fitted over said second shaft portion (102).

12. Tool according to claim 1, characterized in that the shank (20) further comprises a slip-preventing element (25), the slip-preventing element (25) being fitted over the shank (20).