CN217976938U

CN217976938U - Pin shaft structure stable in positioning

Info

Publication number: CN217976938U
Application number: CN202222209690.4U
Authority: CN
Inventors: 许跃进
Original assignee: Fujian Yuesheng Machinery Co ltd
Current assignee: Fujian Yuesheng Machinery Co ltd
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2022-12-06
Anticipated expiration: 2032-08-22

Abstract

The utility model discloses a fix a position stable round pin axle construction relates to round pin axle technical field, and in the time of solving current round pin off-axial mount and connecting rod, the round pin axle can take place to rotate with mount and connecting rod together, and the turning force can drive the round pin axle and take place the lateral shifting of position, and poor stability makes mount and connecting rod rock the problem that the collision reduced the smoothness nature of rotating easily. One end of the limiting seat is provided with a connecting seat, the connecting seat and the limiting seat are of an integrated structure, one end of the connecting seat is provided with a pin shaft center rod, and the pin shaft center rod and the connecting seat are of an integrated structure; further comprising: the connecting toughness pieces are arranged at the other end of the central rod of the pin shaft, the number of the connecting toughness pieces is four, the connecting toughness pieces and the central rod of the pin shaft are of an integral structure, and an enlarged cavity is arranged between the four connecting toughness pieces; and the expansion rotating seat is arranged on one side of the connecting toughness piece, and one end of the expansion rotating seat is provided with an expansion fixing seat.

Description

Pin shaft structure stable in positioning

Technical Field

The utility model relates to a round pin axle technical field specifically is a stable round pin axle construction in location.

Background

The pin shaft is a standard fastener, can be fixedly connected statically, can also move relative to a connected piece, and is mainly used at the hinged part of two parts to form hinged connection;

for example, chinese granted patent with publication number CN203488539U (pin connecting assembly and pin): the workpiece clamping device comprises a pin shaft body, a pin shaft head and a clamping groove, wherein the clamping groove is formed between the pin shaft body and the pin shaft head, the pin shaft head penetrates through the pin shaft hole of each workpiece and rotates for a preset angle, the workpiece and the pin shaft are axially clamped at the clamping groove, and the pin shaft connecting assembly comprises the pin shaft and a baffle. When the workpieces are connected, the pin shaft and the pin shaft connecting assembly do not need to spend time for installing a shaft baffle or inserting a spring clip (or a split pin), and can realize the disassembly and assembly of the workpieces only by rotating, so that the workpiece disassembly and assembly efficiency is improved.

However, when the existing pin shaft is externally connected with the fixing frame and the connecting rod, the pin shaft can rotate together with the fixing frame and the connecting rod, the pin shaft can be driven by a rotating force to transversely shift, the stability is poor, the fixing frame and the connecting rod are easy to shake and collide, and the rotation smoothness is reduced; therefore, the existing requirements are not met, and a pin shaft structure with stable positioning is provided for the existing requirements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fix a position stable pin structure to when solving the external mount of current round pin axle and connecting rod that propose among the above-mentioned background art, the round pin axle can take place to rotate with mount and connecting rod together, and the turning force can drive the round pin axle and take place the lateral deviation in position, and poor stability makes mount and connecting rod rock the problem that the collision reduced the rotation smoothness nature easily.

In order to achieve the above object, the utility model provides a following technical scheme: a pin shaft structure with stable positioning comprises: the limiting device comprises a limiting seat, a connecting seat is arranged at one end of the limiting seat, the connecting seat and the limiting seat are of an integrated structure, a pin shaft center rod is arranged at one end of the connecting seat, and the pin shaft center rod and the connecting seat are of an integrated structure;

further comprising:

the connecting toughness pieces are arranged at the other end of the pin shaft center rod, the number of the connecting toughness pieces is four, the connecting toughness pieces and the pin shaft center rod are of an integral structure, and an enlarged cavity is arranged between the four connecting toughness pieces;

the expansion rotating seat is arranged on one side of the connecting toughness sheet, one end of the expansion rotating seat is provided with an expansion fixing seat, and the expansion fixing seat and the expansion rotating seat are of an integral structure;

the second fixing plate is arranged outside the expanding rotating seat, a thread groove is formed in the center of the second fixing plate and penetrates through the second fixing plate, threads are formed in the outer wall of the expanding fixing seat, and the expanding fixing seat is in threaded connection with the thread groove through the threads.

Preferably, the side surfaces of the connecting seat and the connecting toughness piece are provided with limiting moving columns, the outside of the connecting seat is provided with a first fixing frame, the outside of the connecting toughness piece is provided with a second fixing frame, the inside of the first fixing frame and the inside of the second fixing frame are provided with through holes, and the inner wall of each through hole is provided with a limiting moving groove.

Preferably, a connecting rod is arranged between the first fixing frame and the second fixing frame, one end of the connecting rod is sleeved outside the central rod of the pin shaft, and the connecting rod is rotatably connected with the central rod of the pin shaft.

Preferably, a cross groove is formed in the surface of one side of the expanding fixing seat, and the cross groove and the expanding fixing seat are of an integral structure.

Preferably, both ends of the second fixing plate are provided with second threaded parts, and one end of each second threaded part penetrates through the second fixing plate and is in threaded connection with the second fixing frame.

Preferably, the other end of the limiting seat is provided with a first fixing plate, the first fixing plate and the limiting seat are of an integral structure, the two ends of the first fixing plate are provided with first threaded parts, and the first fixing plate is in threaded connection with the first fixing frame through the first threaded parts.

Preferably, the outer wall of the expanding and rotating seat is provided with a non-slip mat, and the non-slip mat is connected with the expanding and rotating seat in an adhesion mode.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up four connection toughness pieces in round pin axle well core rod one end, a circle is constituteed to four connection toughness pieces, to enlarge and rotate the screw thread groove that the seat located from second fixed plate center and pass, make it be located inside the expansion cavity of constituteing by four connection toughness pieces, rotate and enlarge the fixing base, can drive like this and enlarge and rotate the seat and push down and enlarge the cavity, make four connection toughness pieces to expand extrusion second mount all around, improve the stability between connection toughness piece and the second mount through the extrusion force, just can not rotate along with the connecting rod rotation yet, prevent well core rod axle horizontal migration, it passes through screw thread and screw thread groove and is connected to enlarge the fixing base, the second fixed plate relies on second screwed part and second mount to be fixed, play the locate effect to expanding the rotation seat, just play the locate effect to being connected the toughness piece after being connected with connection toughness piece, avoid horizontal migration.

2. All set up spacing moving column through a side surface at connecting seat both sides and two connection toughness pieces, through hole inner wall at first mount and second mount center department all sets up spacing moving groove, when round pin axle well core rod passes first mount and second mount, aim at spacing moving groove with spacing moving column and remove, play the effect that the location removed, just also can not rotate along with the connecting rod in the atress of later stage, improve positioning stability, first fixed plate is fixed through first screw thread spare and first mount, fix spacing seat, further improve stability.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic diagram of the structure of the pin shaft center rod of the present invention;

FIG. 3 is a right side view structural diagram of the center rod of the pin shaft of the present invention;

fig. 4 is a schematic view of the connection structure between the enlarged fixing base and the second fixing plate of the present invention;

in the figure: 1. a limiting seat; 2. a pin shaft center rod; 3. a connecting seat; 4. connecting the flexible sheets; 5. limiting the movable column; 6. a first fixing plate; 7. a second fixing plate; 8. enlarging the fixed seat; 9. a second threaded member; 10. a first threaded member; 11. a first fixing frame; 12. a second fixing frame; 13. a connecting rod; 14. expanding the rotating seat; 15. a thread; 16. a thread groove; 17. a cross-shaped groove; 18. a limiting moving groove; 19. expanding the cavity; 20. a through hole; 21. a non-slip mat.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, the present invention provides an embodiment of: a pin shaft structure with stable positioning comprises: the device comprises a limiting seat 1, wherein a connecting seat 3 is arranged at one end of the limiting seat 1, the connecting seat 3 and the limiting seat 1 are of an integral structure, a pin shaft central rod 2 is arranged at one end of the connecting seat 3, and the pin shaft central rod 2 and the connecting seat 3 are of an integral structure;

further comprising:

the connecting flexible sheets 4 are arranged at the other end of the central pin shaft rod 2, the number of the connecting flexible sheets 4 is four, the connecting flexible sheets 4 and the central pin shaft rod 2 are of an integral structure, and an enlarged cavity 19 is arranged between the four connecting flexible sheets 4;

an expanding rotating seat 14 which is arranged at one side of the connecting toughness sheet 4, wherein one end of the expanding rotating seat 14 is provided with an expanding fixed seat 8, and the expanding fixed seat 8 and the expanding rotating seat 14 are of an integral structure;

and a second fixing plate 7 disposed outside the enlarged rotary seat 14, wherein a thread groove 16 is formed at the center of the second fixing plate 7, the thread groove 16 penetrates through the second fixing plate 7, and a thread 15 is formed on the outer wall of the enlarged fixing seat 8, so that the enlarged fixing seat 8 is screwed to the second fixing plate 7 by the thread 15 and the thread groove 16.

Referring to fig. 1, 2 and 3, the side surfaces of the connecting seat 3 and the flexible connecting piece 4 are respectively provided with a limiting moving column 5, a first fixing frame 11 is sleeved outside the connecting seat 3, and a second fixing frame 12 is sleeved outside the flexible connecting piece 4. Specifically, the inside of first mount 11 and second mount 12 all is provided with through hole 20, and the inner wall of through hole 20 is provided with the spacing moving groove 18 that cooperates spacing moving post 5, aims at spacing moving groove 18 with spacing moving post 5 during the assembly and removes, plays the effect that the location was removed to realize connecting seat 3 and first mount 11, connect toughness piece 4 and second mount 12 and can not take place the rotation each other, play limiting displacement.

Referring to fig. 1 and 2, a connecting rod 13 is disposed between the first fixing frame 11 and the second fixing frame 12, one end of the connecting rod 13 is sleeved outside the central rod 2 of the pin, and the connecting rod 13 and the central rod 2 of the pin can rotate relative to each other. Preferably, the connecting rod 13 is rotatably connected to the central pin shaft rod 2 by a ball bearing (not shown), an outer ring of the ball bearing is fixedly connected to the connecting rod 13, and an inner ring of the ball bearing is fixedly connected to the central pin shaft rod 2. Thus, the ball bearing can play a role in connection and positioning, so that the connecting rod 13 cannot transversely slide along the axial direction of the central rod 2 of the pin shaft, and the rotation can be smoother.

Referring to fig. 1, a cross-shaped groove 17 is formed on a side surface of the enlarged fixing base 8, and the cross-shaped groove 17 and the enlarged fixing base 8 are integrated, so that the enlarged fixing base 8 can be conveniently rotated by the external cross-shaped screwdriver.

Referring to fig. 1 and 4, the two ends of the second fixing plate 7 are provided with the second screws 9, and one end of the second screw 9 penetrates through the second fixing plate 7 to be connected with the second fixing frame 12 by screw threads, so that the second fixing plate 7 can be fixed and detached conveniently, and the enlarged rotating base 14 is positioned and fixed by the second fixing plate 7, thereby achieving the effect of fixing the enlarged rotating base 14.

Referring to fig. 1, a first fixing plate 6 is disposed at the other end of the limiting seat 1, the first fixing plate 6 and the limiting seat 1 are integrated, first threaded members 10 are disposed at both ends of the first fixing plate 6, and the first fixing plate 6 is in threaded connection with a first fixing frame 11 through the first threaded members 10, so that the fixing of the limiting seat 1 and the first fixing frame 11 is realized, and the overall stability of the pin shaft is improved.

Referring to fig. 4, the outer wall of the expanding rotating seat 14 is provided with the anti-slip pad 21, and the anti-slip pad 21 is bonded to the expanding rotating seat 14, so that the anti-slip property of the expanding rotating seat 14 and the inner wall of the connecting flexible sheet 4 is improved, and the anti-slip property is not easy to loosen.

The working principle is as follows: when the connecting device is used, the connecting flexible sheet 4 at one end of the central rod 2 of the pin shaft sequentially penetrates through the first fixing frame 11, the connecting rod 13 and the second fixing frame 12, when the connecting device penetrates through the first fixing frame 11 and the second fixing frame 12, the limiting moving column 5 is aligned to the limiting moving groove 18 to move, the effect of positioning movement is achieved, the connecting seat 3 and the connecting flexible sheet 4 are limited with the first fixing frame 11 and the second fixing frame 12 respectively, the first fixing plate 6 is in threaded connection with the first fixing frame 11 through the first threaded part 10, the fixing of the limiting seat 1 and the first fixing frame 11 is achieved, the second fixing plate 7 is in threaded connection with the second fixing frame 12 through the second threaded part 9, after the fixing is achieved, the expanding rotating seat 14 penetrates through the threaded groove 16 in the center of the second fixing plate 7, the expanding rotating seat 8 is located inside the expanding cavity 19 formed by the four connecting flexible sheets 4, the expanding fixing seat 8 rotates, the expanding fixing seat 8 is connected with the threaded groove 16 through the threads 15, the expanding seat 14 can be driven to press the expanding cavity 19, the four connecting flexible sheets 4 are expanded to extrude the second connecting rod 12 towards the periphery, the connecting rod 4, and the transverse extrusion force between the fixing frame 13 can be prevented from being rotated and the transverse extrusion force between the fixing frame 12, and the connecting rod 13 can not be prevented from being rotated.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A pin shaft structure with stable positioning comprises a limiting seat (1), wherein a connecting seat (3) is arranged at one end of the limiting seat (1), and a pin shaft center rod (2) is arranged at one end of the connecting seat (3);

the method is characterized in that: further comprising:

the connecting toughness pieces (4) are arranged at the other end of the pin shaft center rod (2), the number of the connecting toughness pieces (4) is four, and an enlarged cavity (19) is arranged among the four connecting toughness pieces (4);

the expansion rotating seat (14) is arranged on one side of the connecting toughness sheet (4), one end of the expansion rotating seat (14) is provided with an expansion fixing seat (8), and the expansion fixing seat (8) and the expansion rotating seat (14) are of an integral structure;

the second fixing plate (7) is arranged outside the expanding rotating seat (14), a thread groove (16) is formed in the center of the second fixing plate (7), threads (15) are arranged on the outer wall of the expanding fixing seat (8), and the expanding fixing seat (8) is in threaded connection with the thread groove (16) through the threads (15).

2. The pin structure for stable positioning according to claim 1, wherein: the side surfaces of the connecting seat (3) and the connecting toughness piece (4) are provided with limiting moving columns (5), the outside of the connecting seat (3) is provided with a first fixing frame (11), the outside of the connecting toughness piece (4) is provided with a second fixing frame (12), the inside of the first fixing frame (11) and the inside of the second fixing frame (12) are provided with through holes (20), and the inner wall of each through hole (20) is provided with a limiting moving groove (18).

3. The pin structure for stable positioning according to claim 2, wherein: a connecting rod (13) is arranged between the first fixing frame (11) and the second fixing frame (12), and one end of the connecting rod (13) is sleeved outside the central rod (2) of the pin shaft.

4. The pin structure with stable positioning according to claim 1, wherein: and the two ends of the second fixing plate (7) are both provided with second threaded parts (9), and one end of each second threaded part (9) penetrates through the second fixing plate (7) to be in threaded connection with the second fixing frame (12).

5. The pin structure with stable positioning according to claim 1, wherein: the other end of spacing seat (1) is provided with first fixed plate (6), the both ends of first fixed plate (6) all are provided with first screw (10), and first fixed plate (6) are through first screw (10) and first mount (11) threaded connection.

6. The pin structure for stable positioning according to claim 1, wherein: the outer wall of the expanding rotating seat (14) is provided with a non-slip mat (21), and the non-slip mat (21) is connected with the expanding rotating seat (14) in an adhesion mode.