CN216691759U

CN216691759U - Telescopic elastic pin

Info

Publication number: CN216691759U
Application number: CN202220177012.1U
Authority: CN
Inventors: 李晓华
Original assignee: Xiamen Shenghongxin Technology Co ltd
Current assignee: Xiamen Shenghongxin Technology Co ltd
Priority date: 2022-01-24
Filing date: 2022-01-24
Publication date: 2022-06-07
Anticipated expiration: 2032-01-24

Abstract

The application discloses telescopic elastic pin, including round pin axle, spring, heart subassembly and main part, the spring housing is established at round pin epaxially, the heart subassembly is hollow form, the epaxial one end that overlaps and be equipped with the spring of round pin is pegged graft and is advanced interior back and main part fixed connection of heart subassembly, the one end that the main part was kept away from to the round pin axle is located outside the heart subassembly, the heart subassembly is used for the installation of elastic pin to be fixed. The elastic pin has the advantages that the elastic pin is not only fixed firmly to a workpiece, but also is convenient to adjust.

Description

Telescopic elastic pin

Technical Field

The application relates to the field of cylindrical pins, in particular to a telescopic elastic pin.

Background

The elastic cylindrical pin is also called as an elastic pin, is a headless hollow cylindrical body, is axially grooved, and has chamfers at the end parts of two ends for positioning, connecting, fixing and the like of parts; the pin has an outer diameter slightly larger than the diameter of the assembling hole, and the cylindrical pin is generally used for connecting and locking parts or used for assembling and positioning and can also be used as a part of a safety device.

Most of functions of the existing cylindrical pins on the market are single, the problems that connection is unstable and fixation is not ideal exist, when the cylindrical pins are used, the phenomenon that the cylinders inside the cylindrical pins are blocked is quite possibly caused, the existing cylindrical pins are usually solid metal bodies, elasticity is lacked, assembly is difficult, the phenomenon of inconvenience in disassembly is avoided, the requirements of users are not met, the benefits of the users cannot be guaranteed, and the improvement is needed.

SUMMERY OF THE UTILITY MODEL

To the deficiency of prior art, the purpose of this application is to provide a telescopic elastic pin, its advantage lies in this elastic pin not only fixed firm to the work piece to it is convenient to adjust.

The application provides a installed part convenient to installation adopts following technical scheme: the utility model provides a telescopic elastic pin, includes round pin axle, spring, heart subassembly and main part, the spring housing is established at the round pin epaxially, the heart subassembly is hollow form, the one end that the epaxial cover of round pin was equipped with the spring is inserted into behind the heart subassembly with main part fixed connection, the one end that the main part was kept away from to the round pin axle is located outside the heart subassembly, the heart subassembly is used for the installation of elastic pin to be fixed.

By adopting the technical scheme: when a workpiece needs to be adjusted and fixed through the elastic pin, the inner core assembly of the elastic pin is fixedly installed, when a fixed gear of the workpiece needs to be adjusted, the main body is pulled to move in the direction away from the inner core assembly, so that the pin shaft is driven to move towards the inner core assembly, the pin shaft of the elastic pin moves out of the gear hole of the workpiece at the moment until the pin shaft is completely hidden in the inner core assembly, after the workpiece is adjusted to a proper position, the pin shaft is aligned with the gear hole in the corresponding position again, the main body is loosened, one end of the pin shaft moves out of the inner core assembly under the elastic force of the spring and is inserted into the gear hole in the corresponding position of the workpiece again, and therefore the position of the workpiece is adjusted; carry out position control to the work piece through this elastic pin, not only adjust the convenience to the fixed position of work piece is still firm after adjusting.

Preferably, the pin shaft comprises an inserting portion and an installation portion, the inserting portion and the installation portion are located on the same horizontal line, the diameter size of the inserting portion is larger than that of the installation portion, the spring is sleeved on the installation portion, and the diameter size of the spring is located between that of the inserting portion and that of the installation portion.

By adopting the technical scheme: the main body is pulled to move towards the direction far away from the inner core assembly, the pin shaft is driven to move towards the inner core assembly, at the moment, one end, far away from the inserting part, of the spring abuts against one end, close to the main body, of the inner core assembly, one end, far away from the main body, of the spring abuts against the inserting part, in the process that the pin shaft moves towards the inner core assembly, the inserting part of the pin body extrudes the spring towards the direction close to the main body, the main body is loosened after a workpiece is adjusted to a proper position, and the pin shaft is inserted into the corresponding gear hole of the workpiece again under the elastic force of the spring; the diameter size of the pin shaft insertion part is set to be larger than that of the installation part, so that the situation that the spring is sleeved on the outer surface of the insertion part and cannot abut against the insertion part when the insertion part of the pin shaft compresses the spring or the spring recovers to deform is avoided as much as possible.

Preferably, the length of the spring under the action of no external force is equal to that of the mounting part.

By adopting the technical scheme: pulling the main body to drive the inserting part of the pin shaft to extrude the spring, so that the spring obtains elastic deformation, and the pin shaft is inserted into the gear hole again to accumulate elastic force; the overlong length of the spring is avoided as much as possible, and the pin shaft still cannot be completely positioned in the inner core assembly after the pin shaft compresses the spring to the maximum extent; or the phenomenon that the length of the spring is too short and the pin shaft cannot be driven to be smoothly inserted into the gear hole after the puller spring is loosened and restored to deform so that the elastic pin is not firmly fixed to the workpiece is avoided as far as possible.

Preferably, a thread forming mounting bolt is arranged on the surface of one end, away from the insertion part, of the mounting part, a mounting screw hole matched with the mounting bolt is formed in the main body, and the mounting bolt of the elastic pin is screwed in the mounting screw hole of the main body.

By adopting the technical scheme: during assembly, the spring is sleeved on the mounting portion of the pin shaft, one end of the spring is abutted to the insertion portion of the pin shaft, one end of the mounting portion of the pin shaft is inserted into the inner core assembly, the mounting bolt of the pin shaft is screwed into the mounting screw hole in the main body, the pin shaft and the main body are fixed to each other, and therefore the main body can be pulled to drive the pin shaft to extrude the spring when in use, and the pin shaft is hidden in the inner core assembly.

Preferably, the inner core subassembly includes mounting and installed part, the mounting is hollow form, the round pin axle alternates in the mounting, the mounting surface is provided with the screw thread, the elastic pin passes through mounting fixed mounting.

By adopting the technical scheme: when using this elastic pin to carry out position control to the work piece and fix, twist the mounting in the fixed orifices and fix, make from this and keep the whole position of elastic pin inconvenient, when the position control to the work piece of needs, the pulling main part make the round pin axle shift out from the gear hole of work piece can, through set up the screw thread on the mounting surface, not only fixed convenient to the elastic pin, fixed firm moreover.

Preferably, the mounting part is sleeved at one end of the fixing part and fixed with the fixing part, a mounting groove matched with the mounting part is formed in one side, far away from the screw hole, of the main body, and the mounting part is inserted in the mounting groove.

According to the technical scheme, the pin shaft is inserted into the fixing piece, the mounting bolt and the mounting screw hole are screwed and fixed, so that the mounting piece is inserted into the mounting groove, when the position of a workpiece is adjusted, the main body is pulled, the mounting portion of the pin shaft penetrates through the fixing piece and is located in the mounting groove of the main body, and the mounting portion of the pin shaft is prevented from being exposed outside to damage as much as possible when the main body is pulled.

Preferably, follow the internal surface of mounting groove is provided with a plurality of joint strips, the length direction of joint strip is unanimous with the length direction of screw, the joint strip is at the internal surface evenly distributed of mounting groove, the surface of installed part is provided with a plurality of and joint strip assorted joint grooves, the joint groove is at the surface evenly distributed of installed part, the installed part is pegged graft in the mounting groove back joint strip and joint groove engaged with mutually.

After the position of the workpiece is adjusted, the main body is pulled to be sleeved on the outer surface of the mounting piece, and the clamping strip in the mounting groove is meshed with the clamping groove in the outer surface of the mounting piece, so that interference to the moving working process of the pin shaft is avoided, the main body is fixed in the horizontal direction, and the main body is prevented from rotating to be fixed and falling off from the pin shaft.

Preferably, a protective cover is arranged on one side of the main body provided with the screw hole.

By adopting the technical scheme, the protective cover is arranged on the main body, so that not only can the surface of the main body be protected, but also the surface of the protective cover is provided with characters, and the effect of advertising can be achieved on the elastic pin.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the pulling main part makes it remove to the direction of keeping away from the heart subassembly during regulation, drives the round pin axle of elastic pin and shifts out from the gear hole of work piece, until the round pin axle hide totally in the heart subassembly, after adjusting the work piece to suitable position afterwards, unclamp the main part and make the round pin axle peg graft into the gear hole of work piece corresponding position again under the spring action of spring downthehole, carry out position control through this elastic pin to the work piece, not only adjust the convenience, and the position fixing to the work piece after adjusting is still firm.

2. Thereby the joint strip through in the mounting groove is engaged with the joint groove of installed part surface mutually, thereby avoids the main part to take place to rotate as far as possible and makes the main part and the fixed between the round pin axle drop.

3. The protective cover is arranged on the main body, so that the surface of the main body is protected, and the surface of the protective cover is provided with characters, so that the elastic pin can be used for advertising.

Drawings

Fig. 1 is a schematic view of the overall structure of a retractable elastic pin according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a pin and a spring according to an embodiment of the present application.

Fig. 3 is a schematic structural view of the inner core assembly according to the embodiment of the present application.

Fig. 4 is a schematic structural diagram of a main body of an embodiment of the present application.

Reference numerals: 1. a pin shaft; 11. a plug-in part; 12. an installation part; 13. installing a bolt; 2. a spring; 3. a main body; 31. mounting a screw hole; 32. mounting grooves; 321. a clamping strip; 33. a protective cover; 4. an inner core assembly; 41. a fixing member; 42. a mounting member; 421. a clamping groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

Referring to fig. 1, the embodiment of the application discloses a telescopic elastic pin, including round pin axle 1, spring 2, main part 3 and interior heart subassembly 4, wherein interior heart subassembly 4 is hollow form, and spring 2 cover is established after round pin axle 1, with round pin axle 1 from the one end interlude of interior heart subassembly 4, alternates out from the other end of interior heart subassembly 4, keeps the both ends of round pin axle 1 all to be located outside interior heart subassembly 4, fixes mutually with main part 3 after following round pin axle 1 wears out from interior heart subassembly 4.

Referring to fig. 1 and 2, the pin shaft 1 comprises an insertion part 11 and a mounting part 12, the insertion part 11 is fixedly connected with the mounting part 12, the spring 2 is sleeved on the mounting part 12 of the pin shaft 1, and in order to prevent the spring 2 from sliding out of the insertion part 11 of the pin shaft 1 as much as possible, the diameter size of the spring 2 is set to be smaller than that of the insertion part 11, so that one end, close to the insertion part 11, of the spring 2 can abut against the insertion part 11; in addition, in order to fixedly mount the pin 1, a surface of the mounting portion 12 away from the end of the insertion portion 11 is provided with threads to form a mounting bolt 13, and correspondingly, a mounting screw hole 31 (not shown in fig. 1 and 2) is provided in the main body 3, and the pin 1 to be sleeved with the spring 2 is passed through one end of the core assembly 4, and then screwed into the mounting screw hole 31 of the main body 3 through the mounting bolt 13 at one end of the pin 1 to be fixed.

In order to prevent the spring 2 from sliding out of one end, close to the main body 3, of the inner core assembly 4 in the process of compressing the spring 2, of the pin shaft 1 as much as possible, the size of a through hole, close to one end of the main body 3, of the inner core assembly 4 is set to be smaller than the diameter of the spring 2, and therefore in the process of pulling the main body 3 to enable the pin shaft 1 to extrude the spring 2, two ends of the spring 2 are respectively abutted against the insertion part 11 and the inner core assembly 4; in order to keep the elastic pin to work normally, the length of the spring 2 in a natural state is equal to the length of the mounting part 12 of the pin shaft 1; when the length of the spring 2 is too long, the pin shaft 1 cannot completely enter the inner core assembly 4 after extruding the spring 2, so that the pin shaft 1 cannot completely move out of the gear hole of the workpiece, and the pin shaft 1 is influenced to continuously switch the gear hole of the workpiece to be fixed; after the main body 3 is loosened, the spring 2 drives the pin shaft 1 to be inserted into the gear hole at the corresponding position of the workpiece under the action of elastic deformation of the spring 2, and when the length of the spring 2 is too short, the spring 2 cannot drive the pin shaft 1 to be completely inserted into the gear hole of the workpiece, so that the elastic pin is not firmly fixed in the gear hole of the workpiece.

Referring to fig. 3, the core assembly 4 includes a fixing member 41 and a mounting member 42, wherein the fixing member 41 is hollow, the pin shaft 1 is inserted into the fixing member 41, the mounting member 42 is sleeved at one end of the fixing member 41 and is fixedly connected to the fixing member 41, in addition, in order to keep the pin shaft 1 stable in position in the fixing member 41, the spring 2 is prevented from falling off due to position deviation in the fixing member 41 as much as possible, the diameter of the insertion portion 11 of the pin shaft 1 is set to be matched with the size of the through hole of the fixing member 41, and after the pin shaft 1 is inserted into the fixing member 41, the outer surface of the pin shaft 1 is attached to the inner surface of the fixing member 41, so that the pin shaft 1 and the fixing member 41 are kept stable.

Referring to fig. 4, in order to avoid as much as possible the fixing between the mounting bolt 13 on the pin shaft 1 and the mounting screw hole 31 on the main body 3 from falling off due to the accidental rotation of the main body 3, a mounting groove 32 corresponding to the mounting member 42 is provided on the main body 3, the mounting groove 32 is communicated with the mounting screw hole 31, in addition, a plurality of clamping strips 321 are further provided in the mounting groove 32, the clamping strips 321 are arranged along the length direction of the mounting screw hole 31 and are uniformly distributed on the inner surface of the mounting groove 32, a plurality of clamping grooves 421 are correspondingly provided on the outer surface of the mounting member 42, after the mounting member 42 is inserted into the mounting groove 32 of the main body 3, the clamping grooves 421 on the outer surface of the mounting member 42 are engaged with the clamping strips 321 on the inner surface of the mounting groove 32, after the workpiece is mounted and fixed by the elastic pin, the mounting groove 32 of the main body 3 is sleeved on the mounting member 42 so that the main body 3 keeps stable in position.

Referring to fig. 1, in the process of fixing the position of the elastic pin to the workpiece, in order to avoid damaging the surface of the main body 3, a protective cover 33 is provided on the surface of the main body 3, and characters can be provided on the protective cover 33 to achieve the purpose of advertising the elastic pin.

The application principle of a coating canning closing cap device of this application embodiment does: when the fixing position of a workpiece needs to be adjusted, the main body 3 is pulled in the direction away from the fixing part 41 to drive the pin shaft 1 to move out of the gear hole of the workpiece and enter the fixing part 41, the spring 2 is gradually extruded after the pin shaft 1 enters the fixing part 41 until the pin shaft 1 is completely hidden in the fixing part 41, then the position of the workpiece is adjusted to enable the pin shaft 1 to be aligned with the gear hole after the position is adjusted, the pulling on the main body 3 is released, the pin shaft 1 is inserted into the gear hole of the workpiece again under the elastic force action of the spring 2, and the workpiece is fixed again through the elastic pin.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A retractable spring pin, characterized by: including round pin axle (1), spring (2), heart subassembly (4) and main part (3), spring (2) cover is established on round pin axle (1), heart subassembly (4) are hollow form, round pin axle (1) is gone up the one end plug that the cover was equipped with spring (2) and is gone into back and main part (3) fixed connection in heart subassembly (4), the one end that main part (3) were kept away from in round pin axle (1) is located outside heart subassembly (4), heart subassembly (4) are used for the installation of elastic pin fixed.

2. The retractable elastic pin according to claim 1, characterized in that the pin shaft (1) comprises an insertion part (11) and a mounting part (12), the insertion part (11) and the mounting part (12) are positioned on the same horizontal line, the diameter of the insertion part (11) is larger than that of the mounting part (12), the spring (2) is sleeved on the mounting part (12), and the diameter of the spring (2) is positioned between the diameter of the insertion part (11) and that of the mounting part (12).

3. A resilient, retractable pin according to claim 2, wherein the spring (2) is of the same length as the mounting portion (12) when not subjected to external forces.

4. A telescopic elastic pin according to claim 3, characterized in that a thread forming mounting bolt (13) is arranged on the surface of one end of the mounting part (12) far away from the insertion part (11), a mounting screw hole (31) matched with the mounting bolt (13) is arranged on the main body (3), and the mounting bolt (13) of the elastic pin is screwed in the mounting screw hole (31) of the main body (3).

5. The retractable elastic pin according to claim 1, wherein the inner core assembly (4) comprises a fixing member (41) and a mounting member (42), the fixing member (41) is hollow, the pin shaft (1) is inserted into the fixing member (41), the surface of the fixing member (41) is provided with threads, and the elastic pin is fixedly mounted through the fixing member (41).

6. The retractable elastic pin according to claim 5, characterized in that the mounting member (42) is sleeved on one end of the fixing member (41), the mounting member (42) is fixed with the fixing member (41), a mounting groove (32) matched with the mounting member (42) is arranged on one side of the main body (3) away from the screw hole, and the mounting member (42) is inserted into the mounting groove (32).

7. The retractable elastic pin according to claim 6, characterized in that a plurality of clamping strips (321) are arranged along the inner surface of the mounting groove (32), the length direction of the clamping strips (321) is consistent with the length direction of the screw hole, the clamping strips (321) are uniformly distributed on the inner surface of the mounting groove (32), a plurality of clamping grooves (421) matched with the clamping strips (321) are arranged on the outer surface of the mounting piece (42), the clamping grooves (421) are uniformly distributed on the outer surface of the mounting piece (42), and the mounting piece (42) is inserted into the mounting groove (32), and then the clamping strips (321) are engaged with the clamping grooves (421).

8. A retractable elastic pin as claimed in claim 1, characterized in that the side of the body (3) provided with the threaded hole is provided with a protective cover (33).