CN214578183U

CN214578183U - Pin with small tolerance and high matching precision

Info

Publication number: CN214578183U
Application number: CN202120729954.1U
Authority: CN
Inventors: 黄玉铭
Original assignee: Guangdong Zhongmeng Industrial Co ltd
Current assignee: Guangdong Zhongmeng Industrial Co ltd
Priority date: 2021-04-12
Filing date: 2021-04-12
Publication date: 2021-11-02
Anticipated expiration: 2031-04-12

Abstract

The utility model relates to a pin of high cooperation precision that tolerance is little, including the pin body, the pin body comprises round pin head and pin rod. The utility model discloses, install the pin body when treating the inside of fixed object when needs, directly insert the pin body treat the connecting hole of fixed object inside can, when the top edge of stopper contacts with the hole of fixed object, because the stopper receives the extrusion, make the stopper move down, be convenient for install the pin body inside treating the connecting hole of fixed object, when the pin body is taken off to needs, through pressing T type pole, make T type pole control the removal in the inside of recess, thereby drive wire rope pulling stopper and move down, be convenient for take out the pin body from the inside of fixed object, and convenient for operation, set up the round pin head, the pin pole, T type pole, a rubber block and stop gear, partial spare part is lost when can effectively avoiding the pin body to dismantle, cause the condition that the pin body can' T use to take place.

Description

Pin with small tolerance and high matching precision

Technical Field

The utility model relates to a pin of little high fit precision of tolerance belongs to pin technical field.

Background

The pin is also called as a pin, has simple structure and convenient assembly and disassembly, is widely applied to various fixed connections, is mainly used for fixing the relative position between two parts and connecting the parts and can transmit certain load, the pin is in a cylindrical shape at one end, the other end is in a conical shape and is similar to a bullet shape, the pin is one of common fasteners in modern mechanical equipment, and the diameter of the cylindrical surface is important data for distinguishing the specification.

The pin of the little high cooperation precision of current tolerance, install the pin body when treating fixed object's connecting hole is inside when needs, need prevent that the pin from droing from fixed object's inside with the snap ring card in the inside of ring channel, accomplish the fixing to the object with this, but the snap ring block is because the snap ring is less when the ring channel is inside, it is comparatively labouring when hardly taking and pressing with the hand, it is great to staff's hand wearing and tearing to press for a long time, be not convenient for install, when needs are dismantled the pin, cause the snap ring to lose easily, it is troublesome to bring unnecessary for subsequent work.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem who solves overcomes current defect, provides the pin of the little high cooperation precision of tolerance, has and is convenient for install the pin body inside the connecting hole of treating fixed object, is convenient for take out the pin body from the inside of fixed object, and partial spare part loses when can effectively avoiding the pin body to dismantle, causes the condition that the pin body can't be used to take place, improves benefits such as work efficiency, can effectively solve the problem in the background art simultaneously.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model provides a pin of little high cooperation precision of tolerance, includes the pin body, the pin body comprises round pin head and pin rod, and the pin rod keeps away from the one end outer wall of round pin head and has seted up the ring channel, the inside of round pin head and pin rod is all seted up flutedly, and the inside of recess is provided with T type pole, the one end of T type pole is provided with the rubber block No. one, the inside of recess is provided with a plurality of stop gear.

Furthermore, the pin head and the pin rod are integrally connected, the left end and the right end of the first rubber block are fixedly connected with the inner walls of the T-shaped rod and the groove respectively, and the other end of the T-shaped rod is movably connected with the groove through the first rubber block.

Further, stop gear's inside is including the stopper, and the bottom fixedly connected with wire rope of stopper, the bracing piece has been cup jointed to the inside one end of stopper, and the equal fixedly connected with concave type piece in upper and lower both ends of bracing piece, the bottom of stopper is provided with No. two rubber pads, spacing hole has been seted up to the inside of ring channel.

Furthermore, the limiting block and the supporting rod are movably connected, the other end of the steel wire rope penetrates through the limiting hole and is fixedly connected with the outer wall of the T-shaped rod, the outer wall of the concave block is fixedly connected with the inner wall of the annular groove, and the upper end and the lower end of the second rubber pad are fixedly connected with the outer wall of the bottom end of the limiting block and the inner wall of the annular groove respectively.

Furthermore, the number of the limiting mechanisms is three, and the limiting mechanisms are distributed in a triangular structure.

Further, the top edge of stopper is the fillet structure, spacing hole is the arc structure with wire rope's laminating position, wire rope's diameter is less than the diameter in spacing hole.

The utility model discloses a technological effect and advantage:

1. when the pin body needs to be arranged inside an object to be fixed, the pin body is directly inserted into the connecting hole of the object to be fixed, when the top edge of the limiting block contacts with the inner hole of the fixed object, because the limiting block is extruded to enable the limiting block to move downwards, the pin body is convenient to be arranged in the connecting hole of the object to be fixed, when the pin body needs to be taken down, the T-shaped rod is pressed to move left and right in the groove, thereby driving the steel wire rope to pull the limiting block to move downwards, being convenient for taking out the pin body from the inside of the fixed object, being convenient for operation, and being provided with a pin head, a pin rod, a T-shaped rod, a first rubber block and a limiting mechanism, the situation that the pin body cannot be used due to the fact that part of parts are lost when the pin body is disassembled can be effectively avoided, and working efficiency is improved;

2. the utility model discloses, the top edge that sets up the stopper is the fillet structure, and frictional force when having reduced the top edge of stopper and fixed object contact, it is more convenient to install, and spacing hole is the arc structure with wire rope's laminating position, and wire rope's diameter is less than the diameter in spacing hole, and frictional force when reducing spacing hole and wire rope contact improves wire rope's life.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

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

fig. 2 is a schematic front structural view of the present invention;

fig. 3 is a schematic sectional structure of the present invention;

FIG. 4 is a schematic view of a partial structure of a middle stopper of the present invention;

FIG. 5 is an enlarged schematic view of the structure at A in FIG. 4;

fig. 6 is the utility model discloses well stopper and the connection structure schematic diagram of bracing piece.

Reference numbers in the figures: 1. a pin body; 2. a pin head; 3. a pin rod; 301. an annular groove; 302. a groove; 4. a T-shaped rod; 5. a first rubber block; 6. a limiting mechanism; 601. a limiting block; 602. a wire rope; 603. a support bar; 604. a concave block; 605. a second rubber pad; 606. and a limiting hole.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

As shown in fig. 1-6, a pin with small tolerance and high matching precision comprises a pin body 1, the pin body 1 is composed of a pin head 2 and a pin rod 3, an annular groove 301 is formed in the outer wall of one end of the pin rod 3, which is far away from the pin head 2, grooves 302 are formed in the pin head 2 and the pin rod 3, a T-shaped rod 4 is arranged in each groove 302, one end of the T-shaped rod 4 is provided with a first rubber block 5, the pin head 2 and the pin rod 3 are integrally connected, the left end and the right end of the first rubber block 5 are fixedly connected with the inner walls of the T-shaped rod 4 and the grooves 302, the other end of the T-shaped rod 4 is movably connected with the grooves 302 through the first rubber block 5, the T-shaped rod 4 is enabled to extrude the first rubber block 5 by pressing the T-shaped rod 4, the T-shaped rod 4 is enabled to move left and right inside the grooves 302 conveniently, a plurality of limiting mechanisms 6 are arranged inside the grooves 302, the limiting mechanism 6 comprises a limiting block 601 inside, a steel wire rope 602 is fixedly connected to the bottom end of the limiting block 601, a supporting rod 603 is sleeved at one end inside the limiting block 601, concave blocks 604 are fixedly connected to the upper end and the lower end of the supporting rod 603, a second rubber pad 605 is arranged at the bottom end of the limiting block 601, a limiting hole 606 is formed inside the annular groove 301, the limiting block 601 and the supporting rod 603 form a movable connection, the other end of the steel wire rope 602 penetrates through the limiting hole 606 and is fixedly connected with the outer wall of the T-shaped rod 4, the outer wall of the concave block 604 and the inner wall of the annular groove 301 are fixedly connected with each other, the upper end and the lower end of the second rubber pad 605 are respectively and fixedly connected with the outer wall of the bottom end of the limiting block 601 and the inner wall of the annular groove 301, when the pin body 1 needs to be installed inside an object to be fixed, the pin body 1 is directly inserted into a connecting hole of the object to be fixed, when the top corner of the limiting block 601 contacts with the inner hole of the fixed object, the limiting block 601 is pressed to move downwards, so that the pin body 1 is convenient to install in the connecting hole of the object to be fixed, when the pin body 1 needs to be taken down, the T-shaped rod 4 is pressed to move left and right in the groove 302, so as to drive the steel wire rope 602 to pull the limiting block 601 to move downwards, so that the pin body 1 is convenient to take out from the fixed object, the operation is convenient, the pin head 2, the pin rod 3, the T-shaped rod 4, the first rubber block 5 and the limiting mechanism 6 are arranged, the condition that part of parts are lost when the pin body 1 is disassembled to cause that the pin body 1 cannot be used can be effectively avoided, the working efficiency is improved, the number of the limiting mechanisms 6 is three, and the limiting mechanisms 6 are distributed in a triangular structure, so that the object can be uniformly fixed, stability when improving the object fixation, the top edge of stopper 601 is the fillet structure, frictional force when having reduced the top edge of stopper 601 and fixed object contact, and it is more convenient to install, and spacing hole 606 is the arc structure with wire rope 602's laminating position, and wire rope 602's diameter is less than the diameter of spacing hole 606, reduces the frictional force when spacing hole 606 and wire rope 602 contact, improves wire rope 602's life.

For the convenience of understanding the technical solution of the present invention, the following detailed description is made on the working principle or the operation mode of the present invention in the practical process.

The utility model discloses the theory of operation: when the pin body 1 is required to be installed inside an object to be fixed, the pin body 1 is directly inserted into a connecting hole of the object to be fixed, when the top edge of the limiting block 601 is in contact with an inner hole of the fixed object, the limiting block 601 is extruded to enable the limiting block 601 to move downwards, the pin body 1 is convenient to install inside the connecting hole of the object to be fixed, when the pin body 1 is required to be taken down, the T-shaped rod 4 is enabled to move left and right inside the groove 302 by pressing the T-shaped rod 4, the steel wire rope 602 is driven to pull the limiting block 601 to move downwards, the pin body 1 is convenient to take out from the inside of the fixed object, the operation is convenient, the pin head 2, the pin rod 3, the T-shaped rod 4, the rubber block I5 and the limiting mechanism 6 are arranged, the situation that part of parts are lost when the pin body 1 is detached and the pin body 1 cannot be used can be effectively avoided, improve work efficiency, the top edge of stopper 601 is the fillet structure, frictional force when the top edge of stopper 601 and fixed object contact has been reduced, it is more convenient to install, spacing hole 606 is the arc structure with wire rope 602's laminating position, wire rope 602's diameter is less than the diameter of spacing hole 606, frictional force when reducing spacing hole 606 and wire rope 602 contact, improve wire rope 602's life, the length of pin 3 is 8.5 +/-0.1 mm, the diameter of pin 3 is 3.9mm-4.0mm, the width of ring channel 301 is 0.7mm-0.84mm, the diameter of ring channel 301 is 3.3 +/-0.05 mm, make the tolerance size precision of pin body 1 higher, thereby make the cooperation requirement between pin body 1 and the spare part more accurate, effectively improve the stability when the object is fixed.

The above is the preferred embodiment of the present invention, and the technical personnel in the field of the present invention can also change and modify the above embodiment, therefore, the present invention is not limited to the above specific embodiment, and any obvious improvement, replacement or modification made by the technical personnel in the field on the basis of the present invention all belong to the protection scope of the present invention.

Claims

1. A pin with small tolerance and high matching precision comprises a pin body (1) and is characterized in that: the pin bolt is characterized in that the pin bolt body (1) is composed of a pin head (2) and a pin rod (3), an annular groove (301) is formed in the outer wall of one end, away from the pin head (2), of the pin rod (3), a groove (302) is formed in the pin head (2) and the pin rod (3), a T-shaped rod (4) is arranged in the groove (302), one end of the T-shaped rod (4) is provided with a rubber block (5), and a plurality of limiting mechanisms (6) are arranged in the groove (302).

2. A pin of high fitting accuracy with a small tolerance according to claim 1, wherein: the pin head (2) is connected with the pin rod (3) in an integrated mode, the left end and the right end of the first rubber block (5) are fixedly connected with the inner walls of the T-shaped rod (4) and the inner wall of the groove (302) respectively, and the other end of the T-shaped rod (4) is movably connected with the groove (302) through the first rubber block (5).

3. A pin of high fitting accuracy with a small tolerance according to claim 1, wherein: the inside of stop gear (6) is including stopper (601), and the bottom fixedly connected with wire rope (602) of stopper (601), bracing piece (603) have been cup jointed to the inside one end of stopper (601), and the equal fixedly connected with concave type piece (604) in upper and lower both ends of bracing piece (603), the bottom of stopper (601) is provided with No. two rubber pads (605), spacing hole (606) have been seted up to the inside of ring channel (301).

4. A pin of high fitting accuracy with a small tolerance according to claim 3, wherein: the limiting block (601) and the supporting rod (603) are movably connected, the other end of the steel wire rope (602) penetrates through the inside of the limiting hole (606) and is fixedly connected with the outer wall of the T-shaped rod (4), the outer wall of the concave block (604) is fixedly connected with the inner wall of the annular groove (301), and the upper end and the lower end of the second rubber pad (605) are fixedly connected with the outer wall of the bottom end of the limiting block (601) and the inner wall of the annular groove (301) respectively.

5. A pin of high fitting accuracy with a small tolerance according to claim 3, wherein: the number of the limiting mechanisms (6) is three, and the limiting mechanisms (6) are distributed in a triangular structure.

6. A pin of high fitting accuracy with a small tolerance according to claim 3, wherein: the top edge of stopper (601) is the fillet structure, spacing hole (606) are the arc structure with the laminating position of wire rope (602), the diameter of wire rope (602) is less than the diameter of spacing hole (606).