CN211398138U

CN211398138U - Expansion locking device

Info

Publication number: CN211398138U
Application number: CN201921326737.7U
Authority: CN
Inventors: 王建勇
Original assignee: Ningbo Hongheng Precision Machinery Co ltd
Current assignee: Ningbo Hongheng Precision Machinery Co ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2020-09-01
Anticipated expiration: 2029-08-16

Abstract

The utility model discloses an expansion locking device, which comprises a supporting body, a fixed seat arranged on the upper part of the supporting body, a flange sleeve passing through the fixed seat, an expansion block arranged on the flange sleeve, a blocking sleeve arranged inside the flange sleeve, a push rod arranged in the blocking sleeve, a guiding regulation frame arranged at the lower end of the push rod, a connecting arm hinged with the guiding regulation frame, a fixed connecting rod arranged on the supporting body, a movable connecting rod movably connected with the fixed connecting rod, and a handle fixedly arranged in the movable connecting rod, wherein one end of the connecting arm is movably connected with the guiding regulation frame through a pin, and the other end of the connecting arm is movably connected with the movable connecting rod through a pin; firstly, the utility model has simple structure, adopts the push rod to rotate to replace the rotating mode, has quick operation, stable buckle stress and quick disassembly; secondly, the movable connecting rod and the fixed connecting rod are matched for use to have the force arm effect, so that the locking operation is easier, and particularly when the telescopic pipe (arm) is thicker, the advantage is more obvious.

Description

Expansion locking device

Technical Field

The utility model relates to an inflation locking device.

Background

A radial expansion locking mechanism; the expansion block is designed into two semicircular blocks, the front ends of the inner sides of the two semicircular blocks are designed into conical surfaces, and the rear ends of the inner sides of the two semicircular blocks are designed into regular hexagons. The embedded hexagonal nut rotates to drive the two semicircular blocks to move forwards, and the conical body connected with the screw rod expands the two semicircular blocks radially, so that the semicircular blocks are tightly matched with the inner wall of the holding rod for locking. Although the catching fork of the locking mechanism can be locked in a middle length state, the catching fork can be unlocked by reversely rotating by a small angle, and certain insecurity exists in the work. In addition, the semi-circular expansion block of the mechanism has poor processability, and is not beneficial to mass production.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the defects of the prior art, an expansion locking device is provided, and the problems that although a catching fork of the locking mechanism can be locked in a middle length state, the catching fork can be unlocked by reversely rotating by a small angle, and certain insecurity exists in the work process are solved; in addition, the semi-circular expansion block of the mechanism has poor processability, which is not beneficial to mass production.

(II) technical scheme

The utility model discloses a following technical scheme realizes: the utility model provides an inflation locking device, including the supporter, set up the fixing base on supporter upper portion, pass the flange sleeve of fixing base, set up the inflation piece on the flange sleeve, set up the inside blocking sleeve of flange sleeve, set up the push rod in blocking the sleeve, set up the direction regulation frame at the push rod lower extreme, articulate the linking arm in one with the direction regulation frame mutually, set up the fixed connecting rod on the supporter, with fixed connecting rod swing joint's swing joint, fixed handle that sets up in the swing joint, pin and direction regulation frame swing joint are passed through to linking arm one end, and the other end passes through pin and swing joint.

By adopting the technical scheme, the movable connecting rod and the fixed connecting rod are matched for use to have the force arm effect, so that the locking operation is easier.

Preferably, the flange sleeve is provided with a protective sleeve in cooperation with the fixed seat, and the protective sleeve is integrally annular.

By adopting the technical scheme, the protective sleeve is designed, so that the abrasion generated in the use of the flange sleeve and the fixed seat can be effectively prevented, and the service life is prolonged.

Preferably, the lower end of the blocking sleeve extends to the outside of the lower end of the fixed seat and is in fit connection with the push rod.

By adopting the technical scheme, the rotating mode is replaced by the rotating operation of the push rod, the operation is fast, the stress of the buckle is stable, and the disassembly is fast.

Preferably, the whole fixed seat is in a 7 shape, and the fixed seat is integrally formed by a transverse fixed block and a longitudinal fixed block; the transverse fixing block is provided with a channel penetrating through the transverse fixing block, and the channel is used for installing and placing a flange sleeve.

By adopting the technical scheme, the fixing seat is integrally formed by the transverse fixing block and the longitudinal fixing block, so that the overall firmness is more stable.

Preferably, the protective sleeve comprises a first semicircular protective sleeve and a second semicircular protective sleeve, and the first semicircular protective sleeve and the second semicircular protective sleeve are fixed on the transverse fixing block through a plurality of bolts; first semicircle ring protective sheath and second semicircle ring protective sheath are all fixed at horizontal fixed block through a plurality of bolts, adopt a plurality of bolts locking effect better

By adopting the technical scheme, the protective sleeve is the first semicircular ring protective sleeve and the second semicircular ring protective sleeve which are separated, so that the protective sleeve is more convenient to mount and dismount, and the working efficiency is improved.

Preferably, the support body is fixed with the fixing seat in a threaded manner through a plurality of bolts.

Preferably, the movable connecting rod is movably connected with the fixed connecting rod through a pin.

Preferably, the expansion locking device further comprises a guide sleeve, and the push rod is matched and connected with the guide sleeve through a guide regulation frame (13).

(III) advantageous effects

Compared with the prior art, the utility model, following beneficial effect has:

the utility model discloses an inflation locking device, it has following two advantages:

firstly, the utility model has simple structure, adopts the push rod to rotate to replace the rotating mode, has quick operation, stable buckle stress and quick disassembly;

secondly, the movable connecting rod and the fixed connecting rod are matched for use to have the force arm effect, so that the locking operation is easier, and particularly when the telescopic pipe (arm) is thicker, the advantage is more obvious.

Drawings

Fig. 1 is a schematic side view of an expansion locking device according to the present invention;

fig. 2 is a schematic perspective view of the expansion locking device of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1-2, the present invention provides an expansion locking device, which comprises a supporting body 1, a fixing seat 2 disposed on the upper portion of the supporting body 1, a flange sleeve 5 passing through the fixing seat 2, an expansion block 6 disposed on the flange sleeve 5, a blocking sleeve 7 disposed inside the flange sleeve 5, a push rod 2 disposed in the blocking sleeve 7, a guiding regulation frame 13 disposed at the lower end of the push rod 3, a connecting arm 12 hinged to the guiding regulation frame 13, a fixed connecting rod 11 disposed on the supporting body 1, a movable connecting rod 10 movably connected to the fixed connecting rod 11, and a handle 9 fixedly disposed in the movable connecting rod 10, wherein one end of the connecting arm 12 is movably connected to the guiding regulation frame 13 by a pin, and the other end is movably connected to the movable connecting rod 10 by a pin; the support body 1 is fixed with the fixed seat 2 through a plurality of bolts in a threaded manner, and the movable connecting rod 10 is movably connected with the fixed connecting rod 11 through a pin; by adopting the technical scheme, the movable connecting rod 10 and the fixed connecting rod 11 are matched for use to have the force arm effect, so that the locking operation is easier.

As shown in fig. 1-2, in the expansion locking device of the present invention, a protective sleeve 4 is provided in cooperation between the flange sleeve 5 and the fixed seat 2, and the protective sleeve 4 is annular; adopt above-mentioned technical scheme, through designing a protective sheath 4, can effectually prevent the wearing and tearing that produce in flange sleeve 5 and the use of fixing base 2, improve life.

As shown in fig. 1-2, in the expansion locking device of the present invention, the lower end of the blocking sleeve 7 extends to the outside of the lower end of the fixing base 2 and is connected with the push rod 3 in a matching manner; adopt above-mentioned technical scheme, adopt 3 rotation operations of push rod to replace the rotation mode, the operation is swift, and the buckle atress is stable, and dismantles swiftly.

As shown in fig. 1 and 2, in the expansion locking device of the present invention, the fixing base 2 is integrally formed in a shape of "7", and the fixing base 2 is integrally formed by a transverse fixing block 21 and a longitudinal fixing block 22; a channel penetrating through the transverse fixing block 21 is arranged on the transverse fixing block, and the channel is used for installing and placing the flange sleeve 5; adopt above-mentioned technical scheme, fixing base 2 is by horizontal fixed block 21 and vertical fixed block 22 integrated into one piece, and holistic fastness is more stable like this.

As shown in fig. 1 and fig. 2, the protection sleeve 4 of the expansion locking device of the present invention includes a first semicircular protection sleeve 41 and a second semicircular protection sleeve 42, wherein the first semicircular protection sleeve 41 and the second semicircular protection sleeve 42 are both fixed on the transverse fixing block 21 by a plurality of bolts; adopt above-mentioned technical scheme, protective sheath 4 is first semicircle ring protective sheath 41 and the second semicircle ring protective sheath 42 of disconnect-type, and such design makes its installation and dismantlement more convenient, improves work efficiency.

As shown in fig. 1 and fig. 2, the utility model discloses an expansion locking device, expansion locking device still includes uide bushing 8, push rod 3 is connected through the cooperation of direction rule frame 13 and uide bushing 8.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by the technical solution of the present invention by those skilled in the art should fall into the protection scope of the present invention, and the technical contents claimed by the present invention have been fully recorded in the claims.

Claims

1. An expansion locking device, characterized in that: including supporter (1), fixing base (2) of setting on supporter (1) upper portion, flange sleeve (5) of passing fixing base (2), inflation piece (6) of setting on flange sleeve (5), set up stopping sleeve (7) inside flange sleeve (5), push rod (3) of setting in stopping sleeve (7), direction regulation frame (13) of setting at push rod (3) lower extreme, link arm (12) that articulates mutually with direction regulation frame (13), fixed connecting rod (11) of setting on supporter (1), movable connecting rod (10) with fixed connecting rod (11) swing joint, fixed handle (9) of setting in movable connecting rod (10), link arm (12) one end is through pin and direction regulation frame (13) swing joint, the other end passes through pin and movable connecting rod (10) swing joint.

2. The expansion locking device of claim 1, wherein: the flange sleeve (5) is provided with a protective sleeve (4) in cooperation with the fixing seat (2), and the protective sleeve (4) is integrally of a circular ring type.

3. The expansion locking device of claim 1, wherein: the lower end of the blocking sleeve (7) extends to the outside of the lower end of the fixed seat (2) and is connected with the push rod (3) in a matching mode.

4. The expansion locking device of claim 1, wherein: the whole fixed seat (2) is in a 7 shape, and the fixed seat (2) is integrally formed by a transverse fixed block (21) and a longitudinal fixed block (22); the transverse fixing block (21) is provided with a channel penetrating through the transverse fixing block, and the channel is used for installing and placing the flange sleeve (5).

5. The expansion locking device of claim 2, wherein: protective sheath (4) are including first semicircle ring protective sheath (41) and second semicircle ring protective sheath (42), first semicircle ring protective sheath (41) and second semicircle ring protective sheath (42) are all fixed on horizontal fixed block (21) through a plurality of bolts.

6. The expansion locking device of claim 1, wherein: the support body (1) is fixed with the fixed seat (2) in a threaded manner through a plurality of bolts.

7. The expansion locking device of claim 1, wherein: the movable connecting rod (10) is movably connected with the fixed connecting rod (11) through a pin.

8. The expansion locking device of claim 1, wherein: the expansion locking device further comprises a guide sleeve (8), and the push rod (3) is connected with the guide sleeve (8) in a matched mode through a guide regulation frame (13).