CN110953227A

CN110953227A - Gear type double-end connecting piece

Info

Publication number: CN110953227A
Application number: CN201911271865.0A
Authority: CN
Inventors: 宋伟栋
Original assignee: Shaoxing Sunny High Strength Fasteners Co ltd
Current assignee: Shaoxing Sunny High Strength Fasteners Co ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-04-03

Abstract

The invention relates to the technical field of fasteners, in particular to a gear type double-end connecting piece which comprises a hollow shell, wherein the upper end and the lower end of the shell are respectively provided with a first through hole communicated with the hollow part of the shell, the hollow part of the shell is provided with a gear, the left side and the right side of the gear are respectively meshed with a rack, one end of each of two racks is provided with a limiting rod, the limiting rods are connected with connecting rods, one connecting rod extends out of the first through hole at the upper end of the shell, the other connecting rod extends out of the first through hole at the lower end of the shell, the two connecting rods; the advantages are that: the rack is driven to move by the gear, so that the connecting piece at the upper end is driven to move upwards, the connecting piece at the lower end moves downwards, the moving distance of the upper connecting piece and the lower connecting piece is the same at the moment, and compared with the prior art, the synchronous adjustment of the connecting pieces in two directions can be completed only by once adjustment of the structure.

Description

Gear type double-end connecting piece

Technical Field

The invention relates to the technical field of fasteners, in particular to a gear type double-end connecting piece.

Background

Double-end connecting piece is as one of fastener, and the wide application is in each trade, and current double-end connecting piece often separates when carrying out the tip regulation of stretching out and drawing back and adjust one end, need notice the length that both ends stretched out constantly when carrying out the other end regulation whether unanimous to make the moment at both ends the same, in order to guarantee the stability of connecting, such regulation of flexible regulation structure is too loaded down with trivial details.

Disclosure of Invention

The invention aims to provide a gear type double-end connecting piece which is used for improving the convenience of telescopic adjustment of the double-end connecting piece.

In order to achieve the purpose, the technical scheme of the invention is as follows:

the utility model provides a gear type double-end connector, includes hollow casing, the upper and lower both ends of casing all set up with the well hollow through-hole that link up in the casing one, the well hollow portion of casing is equipped with the gear, the left and right sides of gear all meshes the rack, the one end of two racks all is equipped with the gag lever post, even has the connecting rod on the gag lever post, one of them connecting rod stretches out the through-hole one of casing upper end, another connecting rod stretches out the through-hole one of casing lower extreme, the line of two coaxial settings of connecting rod and two connecting rods passes the.

Furthermore, the other end of the rack is provided with an observation rod opposite to the limiting rod, and the gear is positioned between the observation rod and the limiting rod.

Furthermore, a second through hole is formed in the bottom surface of the hollow portion of the shell, a screw rod penetrating through the second through hole is arranged on the surface, opposite to the second through hole, of the gear, and a fastening nut used for being abutted to the outer wall of the shell is connected to one end, penetrating through the second through hole, of the screw rod in a threaded mode.

Furthermore, sliding grooves are formed in the left side and the right side of the hollow portion of the shell, and the rack slides in the sliding grooves.

Furthermore, one end of the connecting rod, which extends out of the first through hole, is provided with a mounting hole.

Furthermore, an external thread is arranged at one end, extending out of the first through hole, of the connecting rod.

Further, include with connecting rod assorted plastics expansion pipe, the one end that the connecting rod stretches out through-hole one is equipped with the barb, is equipped with on the inner wall of plastics expansion plug pipe with barb matched with barb groove.

Furthermore, a backing ring is arranged on the surface of the gear opposite to the second through hole.

Furthermore, a cross groove is formed in the rotation center of the gear.

Furthermore, an operation hole opposite to the cross groove and an observation hole used for movement of the observation rod are formed in the side wall of the shell, and the length of the observation hole is equal to the maximum movement distance of the observation rod.

The invention has the advantages that: the rack is driven to move by the gear, so that the connecting piece at the upper end is driven to move upwards, the connecting piece at the lower end moves downwards, the moving distance of the upper connecting piece and the lower connecting piece is the same at the moment, and compared with the prior art, the synchronous adjustment of the connecting pieces in two directions can be completed only by once adjustment of the structure.

Drawings

FIG. 1 is a schematic view of the constitution of the present invention in example 1;

FIG. 2 is a schematic view showing the connection of the gear to the bottom surface of the hollow part in embodiment 1;

FIG. 3 is a view showing the positional relationship between a viewing port and an operation port in a casing in example 1;

FIG. 4 is a schematic view showing a state after the rack is moved in embodiment 1;

FIG. 5 is a schematic view showing the construction of a connecting rod in embodiment 2;

FIG. 6 is a schematic view showing the construction of a connecting rod in embodiment 3;

description of the reference symbols

The shell body 1, the gear 2, the rack 3, the limiting rod 4, the connecting rod 5, the observation rod 6, the through hole two 7, the screw rod 8, the fastening nut 9, the backing ring 10, the mounting hole 11, the external thread 12, the plastic expansion plug pipe 13, the barb 14, the barb groove 15, the sliding groove 16, the cross groove 17, the observation hole 18 and the operation hole 19.

Detailed Description

The present invention will be described in further detail with reference to examples.

Example 1:

this embodiment provides a gear type double-end connection spare, as shown in fig. 1 to 4, including hollow rectangle casing 1, casing 1's upper and lower both ends all set up with casing 1 well kenozooecium through-hole one (not shown in the figure) that link up, casing 1's well kenozooecium is equipped with gear 2, gear 2's the left and right sides all meshes has rack 3, the one end of two rack 3 all is equipped with gag lever post 4, even there is connecting rod 5 on the gag lever post 4, one of them connecting rod 5 stretches out first through-hole of casing 1 upper end, another connecting rod 5 stretches out first through-hole of casing 1 lower extreme, the coaxial setting of two connecting rods 5 and the line of two connecting rods.

The connection mode between the gear 2 and the shell 1 is as follows: a second through hole 7 is formed in the bottom surface of the hollow portion of the shell 1, a screw 8 penetrating through the second through hole 7 is arranged on the surface, opposite to the second through hole 7, of the gear 2, and one end, penetrating through the second through hole 7, of the screw 8 is in threaded connection with a fastening nut 9 used for being abutted to the outer wall of the shell 1. The left side and the right side of the hollow part of the shell 1 are provided with sliding grooves 16, the rack 3 slides in the sliding grooves 16, the sliding grooves 16 are arranged for guiding the movement of the rack 3 so as to ensure the linearity of the movement of the rack 3, but due to the design of the sliding grooves 16, the rack 3 cannot be tightly attached to the bottom surface of the hollow part of the shell 1, but due to the existence of the fastening nut 9, the gear 2 is attached to the bottom surface of the hollow part during fastening, so that the meshing between the gear 2 and the rack 3 is not stable (only the meshing part is arranged on each tooth), and in order to solve the defect, a backing ring 10 is arranged on the surface of the gear 2 opposite to the through hole two 7 to back up the gear 2 so that the gear 2 and the rack 3 can be.

In order to facilitate the rotation of the gear 2, the cross-shaped groove 17 is further formed in the rotation center of the gear 2 in the embodiment, so that the cross-shaped screwdriver can rotate the gear 2 conveniently, and in order to facilitate the operation of the bolt driver, the side wall of the shell 1 is provided with an operation hole 19 which is opposite to the cross-shaped groove 17.

The action principle of the embodiment is that when the connecting rod 5 needs to be stretched, a cross screwdriver is inserted into the cross groove 17, then a wrench is used for loosening the fastening nut 9, after loosening, the cross screwdriver is used for rotating the gear 2, so that the rack 3 on the right side of the gear 2 moves upwards (downwards), and the rack 3 on the left side of the gear 2 moves downwards (upwards), and therefore stretching adjustment of the connecting rod 5 is achieved, after the connecting rod is adjusted to a proper position, the fastening nut 9 is firstly tightened, and then the screwdriver is pulled out.

Taking the rack 3 on the right side of the gear 2 in fig. 1 as an example, when the rack 3 is located at the initial position, if the gear 2 is rotated clockwise, because the limiting rod 4 is in contact with the gear 2, the downward movement of the rack 3 can be limited by the limiting rod 4, so as to prompt an operator that the gear 2 cannot rotate counterclockwise at the moment, taking the rack 3 on the right side of the gear 2 in fig. 4 as an example, when the rack 3 is located at the end point of the upward movement, if the gear 2 is rotated counterclockwise, because the limiting rod 4 abuts against the inner wall of the upper part of the shell 1, the upward movement of the rack 3 can be limited by the limiting rod 4, so as to prompt the operator that the gear 2 cannot. The limiting rod 4 plays a role in limiting and also plays a role in connecting the connecting rod 5 and the rack 3 together.

In order to conveniently observe whether the movement of the rack 3 reaches the limit position, one end of the rack 3, which is far away from the limiting rod 4, is further provided with an observation rod 6, as shown in fig. 1 and 4, the starting position and the end position of the observation rod 6 are marked, meanwhile, an observation hole 18 used for the movement of the observation rod 6 is formed in the side wall of the shell 1, and the length of the observation hole 18 is equal to the maximum moving distance of the observation rod 6. In addition, when observation pole 6 moves to the terminal point, can also take place to interfere with gear 2, carry out spacingly to gear 2's rotation, avoid excessively revolving to twist this connecting piece and cause the influence.

The end of the connecting rod 5 extending out of the first through hole is provided with a mounting hole 11.

Example 2:

this embodiment is similar to embodiment 1, except that, as shown in fig. 5, the end of the connecting rod 5 extending out of the through hole is provided with an external thread 12.

Example 3:

the embodiment is similar to embodiment 1, except that, as shown in fig. 6, the embodiment comprises a plastic expansion tube matched with the connecting rod 5, the end of the connecting rod 5 extending out of the first through hole is provided with a barb 14, and the inner wall of the plastic expansion plug tube 13 is provided with a barb groove 15 matched with the barb 14. During the installation, squeeze into the downthehole of installation position with plastics expansion pipe earlier, then adjust connecting rod 5 for connecting rod 5 extends and inserts to plastics bloated stopper pipe 13 in, and connecting rod 5 contracts one section distance again after inserting plastics bloated stopper pipe 13 completely, makes barb 14 insert barb groove 15 and connect in order to accomplish. The barb 14 can make the plastics expand and fill up the pipe on the one hand and expand for the plastics expand pipe closely joints with the installation position, and on the other hand can strengthen being connected of connecting rod 5 and plastics expand and fill up the pipe.

The above-mentioned embodiments are merely illustrative of the inventive concept and are not intended to limit the scope of the invention, which is defined by the claims and the insubstantial modifications of the inventive concept can be made without departing from the scope of the invention.

Claims

1. The utility model provides a gear type double-end connector which characterized in that: including hollow casing, the through-hole that link up with well kenozooecium one is all seted up at the upper and lower both ends of casing, and well kenozooecium of casing is equipped with the gear, and the left and right sides of gear all meshes has the rack, and the one end of two racks all is equipped with the gag lever post, even has the connecting rod on the gag lever post, and one of them connecting rod stretches out through-hole one of casing upper end, and another connecting rod stretches out through-hole one of casing lower extreme, the coaxial setting of two connecting rods and the line of.

2. A gear type double-ended connecting member according to claim 1, wherein: the other end of the rack is provided with an observation rod opposite to the limiting rod, and the gear is positioned between the observation rod and the limiting rod.

3. A gear type double-ended connecting member according to claim 1, wherein: and a second through hole is formed in the bottom surface of the hollow part of the shell, a screw rod penetrating through the second through hole is arranged on the surface, opposite to the second through hole, of the gear, and one end, penetrating through the second through hole, of the screw rod is in threaded connection with a fastening nut used for being abutted against the outer wall of the shell.

4. A gear type double-ended connecting member according to claim 3, wherein: the left side and the right side of the hollow part of the shell are provided with sliding grooves, and the racks slide in the sliding grooves.

5. A gear type double-ended connecting member according to claim 1, wherein: and a mounting hole is formed in one end, extending out of the first through hole, of the connecting rod.

6. A gear type double-ended connecting member according to claim 1, wherein: and an external thread is arranged at one end of the connecting rod, which extends out of the first through hole.

7. A gear type double-ended connecting member according to claim 1, wherein: including with connecting rod assorted plastics expansion pipe, the one end that the connecting rod stretches out through-hole one is equipped with the barb, is equipped with on the inner wall of plastics expansion plug pipe with barb matched with barb groove.

8. A gear type double-ended connecting member according to claim 4, wherein: and a backing ring is arranged on the surface of the gear opposite to the second through hole.

9. A gear type double-ended connecting member according to claim 2, wherein: the rotation center of the gear is provided with a cross groove.

10. A gear type double-ended connecting member according to claim 9, wherein: the side wall of the shell is provided with an operation hole opposite to the cross groove and an observation hole used for the observation rod to move, and the length of the observation hole is equal to the maximum moving distance of the observation rod.