CN211831495U

CN211831495U - Machine case locking and pulling device

Info

Publication number: CN211831495U
Application number: CN202020789817.2U
Authority: CN
Inventors: 王超; 贾浪; 张童; 李元; 刘振涛
Original assignee: XI'AN XIANGXUN TECHNOLOGY CO LTD
Current assignee: XI'AN XIANGXUN TECHNOLOGY CO LTD
Priority date: 2020-05-13
Filing date: 2020-05-13
Publication date: 2020-10-30
Anticipated expiration: 2030-05-13

Abstract

The utility model relates to a case locking and pulling device, which belongs to the technical field of electronic equipment case disassembly and assembly, and the technical problem solved by the utility model is to provide a case locking and pulling device, which adopts the technical proposal that; a cabinet lock-up pulling device comprising: the front end of the connecting rod is hinged with the chassis bracket, the pull sleeve is sleeved on the connecting rod, a first annular arm is arranged at the front part of the pull sleeve, a second annular arm is arranged in the middle of the pull sleeve, and an annular clamping groove is formed between the first annular arm and the second annular arm; the lock cap and the rotating handle are sleeved on the pull sleeve, an opening for pushing and pressing a case hook is arranged at the front end of the lock cap, and an annular push plate for pushing the second annular arm to move forwards is arranged in the lock cap; the equipment is widely applied to the field of electronic equipment case disassembly and assembly.

Description

Machine case locking and pulling device

Technical Field

The utility model belongs to the technical field of the dismouting of electronic equipment machine case, concretely relates to machine case locking pull-out device.

Background

The electronic equipment cabinet includes: the electronic equipment case is an important structure for installing and protecting various circuit units, components and mechanical parts in the electronic equipment, and plays a very important role in eliminating the interference of various complex environments to the equipment, ensuring the safe, stable and reliable work of the equipment, improving the service efficiency and service life of the equipment, enhancing the convenience of equipment installation and maintenance and the like.

The existing electronic equipment chassis mostly adopts the structural form of a modular chassis, the chassis is installed in the chassis when in use, a chassis bracket device is arranged in the chassis, the chassis bracket device comprises a chassis bracket and an electric connector arranged at the rear side of the bracket, and the chassis is introduced by inserting the electric connector arranged at the rear side into the electric connector arranged on the chassis bracket.

However, the existing chassis locking device has the following problems in the actual use process:

1. some existing chassis locking devices adopt a mode of indirectly fixing a chassis, but the chassis locking devices have the problems of complex structure and complex operation, and the difficulty of a manufacturing process and the complexity of assembly are increased in the manufacturing and processing process of the chassis locking devices.

2. In addition, a part of case locking devices adopt a mode of directly fixing the case, the connection mode of the case locking devices is usually rigid connection, and the risk of locking function failure caused by vibration working conditions in the use process exists in the locking mode.

3. In addition, the two case locking devices have the problem of single function, can only realize locking and fixing of the case, cannot realize the function of pulling up the case, and also need to be specially arranged to pull up the pulling-up device, thereby increasing the complexity of the case disassembly process.

Therefore, it is an urgent need to solve the above-mentioned problems to provide a chassis locking device with simple structure, high reliability and pull-up function.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a machine case locking pull-out device for overcome that current locker structure is complicated, the operation is complicated, the reliability is low and do not possess the problem of pulling-out the function.

The utility model discloses the technical scheme who adopts does: a cabinet lock-up pulling device comprising: the front end of the connecting rod is hinged with the chassis bracket, the pull sleeve is sleeved on the connecting rod, a first annular arm is arranged at the front part of the pull sleeve, a second annular arm is arranged in the middle of the pull sleeve, and an annular clamping groove is formed between the first annular arm and the second annular arm;

the lock cap and the rotating handle are sleeved on the pull sleeve, an opening used for pushing and pressing a hook of the case is formed in the front end of the lock cap, an annular push plate used for pushing the second annular arm to move forwards is arranged in the lock cap, and the lock cap is in sliding fit with an annular groove formed in the rotating handle through an annular bulge formed in the rear end of the lock cap;

the utility model discloses a limiting device, including the twist grip, limiting seat, pull cover, limiting nut, swivel handle, limiting seat, limiting groove, limiting nut, snap spring are still installed to the slip grip rear end, the swivel handle rear end is fixed with the limiting seat, fasten through the screw between limiting seat and the swivel handle, the limiting seat passes through the screw assembly on the connecting rod, be provided with the limiting groove in the limiting seat, pull the cover rear end and insert limiting groove inside, and be located the pulling of limiting groove inside and overlap and still be.

Furthermore, an elastic part is arranged between the annular push plate and the rotating handle, the elastic part is a spring, and the elastic part is sleeved on the pull sleeve.

Furthermore, the rotating handle is made of aluminum, a first check ring is arranged between the elastic piece and the rotating handle, and the first check ring is made of stainless steel; the first retaining ring that sets up, on the one hand, when the unevenness appears in the terminal surface of twist grip and spring contact, reducible spring is because the atress is inhomogeneous and warp, and on the other hand, because first retaining ring is stainless steel material, when twist grip rotates, has reduced the wearing and tearing between spring and the aluminium system twist grip, and first retaining ring can also reduce the radial rotation of spring moreover.

Furthermore, a second retaining ring is arranged at the rear end of the limiting seat, the second retaining ring is fixedly mounted on the connecting rod, and the second retaining ring is used for preventing the limiting seat from being punched out of the connecting rod in the pulling process.

This quick-witted case locking pull-out device locks, the connecting rod articulates on quick-witted case bracket through the round pin axle, manual rotation twist grip, thereby twist grip drives spacing seat and removes along the connecting rod, twist grip promotes the cover that draws simultaneously, the lock nut removes, when the lock nut contacts with quick-witted case hook, continue to rotate twist grip and carry out quick-witted case locking, because install the effect of spring on the lock nut, on the one hand, the spring can provide the pretightning force, on the other hand, quick-witted case receives flexible load at the in-process of locking and locks, the injury of rigid locking to quick-witted case connector has further been avoided at the locking in-process.

The locking of the case pulling process is the reverse process, namely, the reverse rotation rotating handle drives the limiting seat to realize moving along the connecting rod, meanwhile, the pulling sleeve and the locking cap are pushed to move in the direction away from the case, the spring is completely reset, the locking cap is completely separated from the bracket of the case to be locked, the pulling sleeve is contacted with the other end of the bracket of the case, and the pulling function is realized through the lever principle by continuing to reversely rotate the rotating handle or downwards pressing the rotating handle.

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

The utility model discloses a case locking pull-out device, simple structure, the simple operation through the connecting rod, draw mutually supporting between cover, locking cap, twist grip and the spacing seat, alright realize the locking of case and play and pull out two kinds of functions.

The spring is arranged between the lock cap and the rotating handle, when the case is locked, the rotating handle can directly push the lock cap to be clamped, the spring is always in a compression state in the locking process, stable locking thrust is provided, the spring is converted into locking pretightening force in the locking state, and the locking safety is improved; when the machine case is pulled up, the spring can also provide auxiliary thrust, so that two procedures of locking and pulling the machine case can be rapidly carried out, and the working efficiency of locking and pulling the machine case is improved.

Thirdly, the rear end of the pull sleeve and the rotating handle are movably arranged, when the rotating handle pushes the pull sleeve, the pull sleeve can axially shift in the limiting groove, the impact caused by rigid connection is relieved, and the reliability and the safety of the whole device are improved by the flexibly connected pull sleeve; meanwhile, the displacement of the pulling sleeve on the connecting rod can be limited by the limiting nut.

Drawings

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 is an internal structure diagram of a machine box locking and pulling device of the present invention.

Fig. 2 is a locking state diagram of the case locking and pulling device of the present invention.

Fig. 3 is a drawing state diagram of the apparatus for locking and drawing a chassis of the present invention.

In the figure, 2 is a connecting rod, 3 is a pull sleeve, 4 is a lock cap, 5 is an elastic part, 6 is a first check ring, 7 is a limit nut, 8 is a limit seat, 9 is a second check ring, 10 is a case bracket, 11 is a case hook, 12 is a rotating handle, 21 is a limit groove, 22 is an annular groove, 23 is an annular push plate, 24 is an annular bulge, 25 is a second annular arm, and 26 is a case.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1, fig. 2 and fig. 3, the apparatus for locking and pulling out a chassis in this embodiment includes: the front end of the connecting rod 2 is hinged with a case bracket 10, the pull sleeve 3 is sleeved on the connecting rod 2, a first annular arm is arranged at the front part of the pull sleeve 3, a second annular arm 25 is arranged at the middle part of the pull sleeve 3, and an annular clamping groove is formed between the first annular arm and the second annular arm 25;

the lock cap 4 and the rotating handle 12 are both sleeved on the pull sleeve 3, an opening for pushing and pressing a case hook is arranged at the front end of the lock cap 4, an annular push plate 23 for pushing a second annular arm 25 to move forwards is arranged inside the lock cap 4, and the lock cap 4 is in mutual sliding fit with an annular groove 22 arranged in the rotating handle 12 through an annular bulge 24 arranged at the rear end of the lock cap 4;

the rear end of the rotating handle 12 is fixed with a limiting seat 8, the limiting seat 8 and the rotating handle 12 are fastened through screws, the limiting seat 8 is assembled on the connecting rod 2 through threads, a limiting groove 21 is formed in the limiting seat 8, the rear end of the pull sleeve 3 is inserted into the limiting groove 21, a limiting nut 7 is further arranged on the pull sleeve 3 located in the limiting groove 21, and a clamp spring is further installed at the rear end of the limiting nut 7.

An elastic part 5 is arranged between the annular push plate 23 and the rotating handle 12, the elastic part 5 is a spring, and the elastic part 5 is sleeved on the pull sleeve 3.

Further, the rotating handle 12 is made of aluminum, a first retainer ring 6 is arranged between the elastic piece 5 and the rotating handle 12, and the first retainer ring 6 is made of stainless steel; first retaining ring 6 that sets up, on the one hand, when the unevenness appears in the terminal surface of twist grip and spring contact, reducible spring is because the atress is inhomogeneous and warp, and on the other hand, because first retaining ring 6 is stainless steel material, when twist grip rotates, has reduced the wearing and tearing between spring and the aluminium system twist grip, and first retaining ring 6 can also reduce the radial rotation of spring moreover.

Furthermore, a second retaining ring 9 is arranged at the rear end of the limiting seat 8, the second retaining ring 9 is fixedly mounted on the connecting rod 2, and the second retaining ring is used for preventing the limiting seat from being punched out of the connecting rod in the pulling process.

The best suit of this locking device's spring is on drawing cover 3, also can draw 3 circumference directions on the cover and evenly set up a plurality of spring, and spring one end is fixed with annular push pedal 23, and the spring other end is fixed with first retaining ring 6.

This quick-witted case locking pull-out device locks, connecting rod 2 articulates on quick-witted case bracket 10 through the round pin axle, manual rotation twist grip 12, thereby twist grip 12 drives spacing seat 8 and removes along connecting rod 2, twist grip 12 promotes draws cover 3 simultaneously, locking cap 4 removes, the cover 3 that draws that the activity set up this moment can take place the axial deflection in spacing groove 21, avoid the impact that rigid connection caused, when locking cap 4 and quick-witted case hook 11 contact, continue to rotate twist grip 12 and carry out quick-witted case 26 locking, because the effect of installing the spring on locking cap 4, on the one hand, the spring can provide the pretightning force, on the other hand, quick-witted case receives flexible load at the in-process of locking and locks, the injury of rigid locking to quick-witted case connector has further been avoided in locking process.

The locking of the case pulling process is the reverse process, namely, the reverse rotation rotating handle 12 drives the limiting seat 8 to move along the connecting rod 2, meanwhile, the pulling sleeve 3 and the locking cap 4 are pushed to move towards the direction away from the case, the spring is completely reset, the locking cap 4 is completely separated from the locked case bracket 10, the pulling sleeve 3 is contacted with the other end of the case bracket 10, and the pulling function is realized through the lever principle by continuing to reversely rotate the rotating handle 12 or downwards pressing the rotating handle 12.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. It will be apparent to those skilled in the art that modifications and improvements can be made to the above-described embodiments without departing from the spirit and scope of the invention. Accordingly, it will be appreciated that those skilled in the art, upon attaining an understanding of the foregoing may readily produce alterations to, variations of, and equivalents to these embodiments without departing from the spirit and scope of the present invention as defined by the appended claims.

Claims

1. The utility model provides a quick-witted case locking pull-out device which characterized in that includes: the front end of the connecting rod (2) is hinged with a case bracket (10), the pull sleeve (3) is sleeved on the connecting rod (2), a first annular arm is arranged at the front part of the pull sleeve (3), a second annular arm (25) is arranged at the middle part of the pull sleeve (3), and an annular clamping groove is formed between the first annular arm and the second annular arm (25);

the lock cap (4) and the rotating handle (12) are sleeved on the pull sleeve (3), an opening for pushing and pressing a case hook is formed in the front end of the lock cap (4), an annular push plate (23) for pushing the second annular arm (25) to move forwards is arranged inside the lock cap (4), and the lock cap (4) is in sliding fit with an annular groove (22) formed in the rotating handle (12) through an annular protrusion (24) formed in the rear end of the lock cap;

the rear end of the rotating handle (12) is fixed with a limiting seat (8), the limiting seat (8) is assembled on the connecting rod (2) through threads, a limiting groove (21) is formed in the limiting seat (8), the rear end of the pull sleeve (3) is inserted into the limiting groove (21), and a limiting nut (7) is further arranged on the pull sleeve (3) located in the limiting groove (21).

2. The chassis lock extraction device of claim 1, wherein: an elastic piece (5) is arranged between the annular push plate (23) and the rotating handle (12), and the elastic piece (5) is sleeved on the pull sleeve (3).

3. The chassis lock extraction device of claim 2, wherein: the elastic piece (5) is a spring.

4. The chassis lock extraction device of claim 3, wherein: the rotating handle (12) is made of aluminum.

5. The chassis lock-pulling device according to claim 4, wherein: a first retainer ring (6) is arranged between the elastic piece (5) and the rotating handle (12).

6. The chassis lock-pulling device according to claim 5, wherein: the first retainer ring (6) is made of stainless steel.

7. The chassis lock extraction device of claim 1, wherein: the rear end of the limiting seat (8) is provided with a second check ring (9), and the second check ring (9) is fixedly installed on the connecting rod (2).

8. The chassis lock extraction device of claim 7, wherein: the limiting seat (8) and the rotating handle (12) are fastened through screws.

9. The chassis lock extraction device of claim 1, wherein: and a clamp spring is further mounted at the rear end of the limiting nut (7).