CN110001915B

CN110001915B - Locking and releasing device

Info

Publication number: CN110001915B
Application number: CN201910225113.4A
Authority: CN
Inventors: 王虎; 邱坤滨; 张增太; 何文杰; 彭伟; 吴影生
Original assignee: CETC 38 Research Institute
Current assignee: CETC 38 Research Institute
Priority date: 2019-03-22
Filing date: 2019-03-22
Publication date: 2020-08-14
Anticipated expiration: 2039-03-22
Also published as: CN110001915A

Abstract

The invention discloses a locking and releasing device which comprises a base, a locking device and a pressing device, wherein the pressing device comprises a fixed end and a movable end, the fixed end is movably connected with the base, and the movable end is connected with the base through the locking device; a placing cavity is formed between the pressing device and the base, a captive balloon body can be placed in the placing cavity, and the captive balloon body is locked and fixed through the pressing device and the base; according to the invention, through the structural arrangement of the locking device, the pressing locking and automatic releasing of the pressing device can be realized at the same time, and the locking and releasing device has the advantages of low structural complexity and simplicity in operation.

Description

Locking and releasing device

Technical Field

The invention relates to the field of captive balloon equipment, in particular to a locking and releasing device.

Background

The captive balloon serving as a floating platform can be suspended in a troposphere and a stratosphere, has wide application prospects in military and civil use, and is particularly suitable for carrying electronic equipment for search reconnaissance, communication interference and the like due to maneuverability and flexibility.

Fixing the utricule on the mounting bracket before the captive balloon is aerifyd, generally being full of the gas formation balloon at the utricule and coming the balloon of flying through manual unblock in the twinkling of an eye, because the balloon inflation speed is fast, this kind of release mode easily produces the potential safety hazard to operating personnel, and manual unblock atress is uneven simultaneously, easily makes the electronic equipment who carries on the captive balloon produce and rocks the vibration, influences the detection performance. The existing automatic unlocking device is complex in design, is not suitable for releasing the captive balloon body 5 in the inflation process, and is easy to be blocked and the like in severe environment.

In view of the above-mentioned drawbacks, the inventors of the present invention have finally obtained the present invention through a long period of research and practice.

Disclosure of Invention

In order to solve the technical defects, the invention adopts the technical scheme that a locking and releasing device is provided, and the locking and releasing device comprises a base, a locking device and a pressing device, wherein the pressing device comprises a fixed end and a movable end, the fixed end is movably connected with the base, and the movable end is connected with the base through the locking device; a placing cavity is formed between the pressing device and the base, a captive balloon body can be placed in the placing cavity, and the captive balloon body is locked and fixed through the pressing device and the base; the locking device comprises a locking oil cylinder, a locking hook, a support and a locking torsion spring, wherein the locking oil cylinder and the locking hook are arranged on the support, a fixed shaft is arranged at one end of the locking oil cylinder, the locking oil cylinder is movably connected with the support through the fixed shaft, a connecting part is arranged at the end part of a telescopic rod of the locking oil cylinder, the connecting part is provided with a connecting hole, the connecting hole is arranged in a waist-long hole, a rotating shaft is fixedly arranged in the middle of the locking hook, the locking hook is connected with the support through the rotating shaft, the locking hook can freely rotate around the rotating shaft, the locking torsion spring is arranged on the rotating shaft, and the locking torsion spring provides elasticity; the latch hook lower extreme is provided with the connecting block, the connecting block set up in the connecting hole, the latch hook with closing device joint can.

Preferably, the connecting part is U-shaped, the connecting holes are formed in two side edges of the connecting part, the connecting block is cylindrical, and two ends of the connecting block respectively penetrate through the connecting holes in the corresponding side edges of the connecting part; the two ends of the connecting block are provided with limiting parts, and the diameter of the cross section of each limiting part is larger than that of the connecting hole.

Preferably, a groove is formed in the upper portion of the lock hook, a hook is arranged at the movable end of the pressing device, the hook and the groove are arranged in a matched mode, and the hook can be hooked in the groove; the groove opening is obliquely arranged downwards when the lock hook is in a locking position, and the direction of the groove opening can be changed into the oblique upward arrangement along with the rotation of the lock hook around the rotating shaft.

Preferably, the hook is cylindrical, and the upper part of the lock hook is provided with an inclined section corresponding to the hook.

Preferably, the compressing device comprises a compressing torsion spring, a support lug, a roller and a handle frame, the support lug is arranged at the fixed end of the compressing device, the support lug is provided with a connecting hole, the movable connection between the fixed end of the compressing device and the base is realized by simultaneously penetrating a connecting shaft through the base and the connecting hole, the compressing device can freely rotate around the connecting shaft, the compressing torsion spring is arranged in the connecting hole, and the compressing torsion spring provides elasticity to maintain the open state of the compressing device; the rollers are arranged in 2 numbers, the rollers are arranged in parallel, two ends of each roller are fixed on the support lug and the handle frame respectively, the handle frame is arranged at the movable end of the pressing device, and the hook is arranged on the end face, close to the locking device, of the handle frame.

Preferably, the base is provided with a connecting seat corresponding to the support lug, the support lug is provided with a rotating part, and the connecting hole is arranged on the rotating part; the connecting seat is arranged in a left-right symmetrical mode by taking the rotating part as a center, the connecting shaft penetrates through the connecting seat and the rotating part simultaneously to realize the connection of the fixed end and the base, and the compression torsion spring is arranged in the connecting seat; the outer disc of rotation portion is provided with the stopper, correspond between the connecting seat the stopper sets up the locating piece.

Preferably, the locking and releasing device further comprises a fixing device, the fixing device is arranged in the placing cavity and comprises a base and an extrusion part, the extrusion part is fixedly arranged on the upper part of the base, and the extrusion part is connected with the base through the base; the extrusion part is arranged to be of a protrusion shape with a symmetrical structure, an arc-shaped convex rib is formed in the middle of the extrusion part, and the arc-shaped convex rib is arranged between the rollers.

Preferably, the base is provided with an adjusting frame, the adjusting frame is provided with an adjusting hole, the adjusting hole is a waist long hole, and a screw penetrates through the adjusting hole to be in threaded connection with the base.

Preferably, the bottom of the base is further provided with an adjusting screw, the adjusting screw is in threaded connection with the base, and the upper end of the adjusting screw is in contact connection with the base.

Preferably, the adjusting screw is further provided with a locking nut, and the locking nut is arranged on the lower portion of the base.

Compared with the prior art, the invention has the beneficial effects that: 1, the structure of the locking device is arranged, so that the pressing locking and automatic releasing of the pressing device can be realized at the same time, and the locking and releasing device has low structural complexity and simple operation; the symmetrical protruding structures of the extrusion part and the position adjustment of the base and the base can realize the adjustment of the space between the upper surface of the extrusion part and the roller, ensure the locking and fixing effect of the locking and releasing device on the captive balloon body, and ensure that the locking and releasing device is suitable for the captive balloon bodies with different thicknesses and sizes, thereby improving the applicability of the locking and releasing device.

Drawings

FIG. 1 is an overall structural view of a lock release device according to the present invention;

FIG. 2 is a structural view of the locking device;

FIG. 3 is an attachment view of the locking device;

FIG. 4 is a structural view of the hold-down device;

FIG. 5 is a partial attachment view of the compression device;

figure 6 is a view of the locking process of the lock release device,

wherein (a) is an initial state in the locking process, (b) is a proceeding state in the locking process, and (c) is a terminating state in the locking process;

figure 7 is a view of the unlocking process of the lock release device,

wherein (a) is an initial state in the unlocking process, and (b) is a termination state in the unlocking process;

FIG. 8 is a structural view of the fixture;

fig. 9 is a bottom view of the lock release device of the present invention.

The figures in the drawings represent:

1-a base; 2-a locking device; 3-a pressing device; 4-a fixing device; 5-mooring the balloon body; 11-a connecting seat; 12-positioning blocks; 13-adjusting the screw; 14-a lock nut; 21-locking the oil cylinder; 22-a latch hook; 23-a support; 24-locking torsion spring; 25-a fixed shaft; 26-a connecting part; 31-hanging hook; 32-compression torsion spring; 33-support lug; 34-a roller; 35-handle holder; 36-a connecting shaft; 37-a rotating part; 38-a stop block; 41-a base; 42-an extrusion part; 43-an adjusting bracket; 44-a conditioning aperture; 221-a rotating shaft; 222-a connecting block; 223-a limiting part; 224-a trench; 225-inclined section; 261-connecting hole.

Detailed Description

The above and further features and advantages of the present invention are described in more detail below with reference to the accompanying drawings.

Example one

As shown in fig. 1, fig. 1 is a structural view of a lock release device according to the present invention; the locking and releasing device comprises a base 1, a locking device 2 and a pressing device 3, wherein the pressing device 3 comprises a fixed end and a movable end, the fixed end is movably connected with the base 1, and the movable end can be connected with the base 1 through the locking device 2. When the two ends of the pressing device 3 are connected with the base 1 at the same time, a placing cavity is formed between the pressing device 3 and the base 1, the captive balloon body 5 can be placed in the placing cavity, and the corresponding part of the captive balloon body 5 is locked and fixed through the pressing device 3 and the base 1.

Preferably, the base 1 is configured as a U-shaped structure, and the pressing device 3 is disposed at the open end of the base 1, so that the placing cavity is formed between the pressing device 3 and the base 1.

As shown in fig. 2 and 3, fig. 2 is a structural view of the locking device; FIG. 3 is an attachment view of the locking device; the locking device 2 comprises a locking oil cylinder 21, a locking hook 22, a support 23 and a locking torsion spring 24, the support 23 is fixedly arranged on the base 1, the locking oil cylinder 21 and the locking hook 22 are both arranged on the support 23, a fixed shaft 25 is arranged at one end of the locking oil cylinder 21, the locking oil cylinder 21 is movably connected with the support 23 through the fixed shaft 25, namely, the locking oil cylinder 21 can freely rotate around the fixed shaft 25; the end part of the telescopic rod of the locking oil cylinder 21 is provided with a connecting part 26, the connecting part 26 is provided with a connecting hole 261, the connecting hole 261 is a waist-long hole, and the size of the connecting hole 261 is determined by the circular stroke of the locking hook 22 which can move freely in the locking process.

The fixed pivot 221 that is provided with in latch hook 22 middle part, latch hook 22 passes through pivot 221 with support 23 is connected, latch hook 22 can wind pivot 221 free rotation, locking torsional spring 24 set up in on the pivot 221, locking torsional spring 24 provides elasticity and guarantees latch hook 22 is in the locking position. The lower end of the latch hook 22 is provided with a connecting block 222, the connecting block 222 is arranged in the connecting hole 261, and the connecting block 222 can move in the connecting hole 261.

Preferably, the connecting portion 26 is U-shaped, the connecting holes 261 are disposed on two side edges of the connecting portion 26, the connecting block 222 is cylindrical, and two ends of the connecting block 222 respectively penetrate through the connecting holes 261 on the corresponding side edges of the connecting portion 26; the two ends of the connecting block 222 are provided with limiting parts 223, and the cross section diameter of the limiting parts 223 is larger than that of the connecting hole 261, so that the axial movement of the connecting block 222 is avoided, and the stability of the connection state of the locking hook 22 and the locking oil cylinder 21 is improved.

The upper part of the locking hook 22 is provided with a groove 224, the groove 224 is matched with the pressing device 3, and the position of the movable end of the pressing device 3 can be fixed through the locking hook 22, so that the connection between the pressing device 3 and the base 1 at the position of the locking device 2 is realized.

Preferably, the movable end of the pressing device 3 is provided with a hook 31, the hook 31 is disposed in cooperation with the groove 224, and the hook 31 can be hooked in the groove 224, so as to connect the movable end of the pressing device 3. Preferably, the opening of the groove 224 is disposed obliquely downward when the locking hook 22 is in the locking position, and the opening direction of the groove 224 can be changed to be disposed upward when the locking hook 22 rotates counterclockwise around the rotating shaft 221 by a certain angle.

The hook 31 is cylindrical, an inclined section 225 is arranged on the upper portion of the locking hook 22, and in the downward moving process of the hook 31, the hook 31 is in contact with the inclined section 225, so that the upper portion of the locking hook 22 is under the action of inclined pressure, the hook 31 rotates around the rotating shaft 221 until the hook 31 moves into the groove 224, and the hook 31 and the groove 224 are matched and hooked.

As shown in fig. 4 and 5, fig. 4 is a structural view of the pressing device; FIG. 5 is a partial attachment view of the compression device; closing device 3 is including compressing tightly torsional spring 32, journal stirrup 33, roller 34 and handle frame 35, journal stirrup 33 sets up closing device 3's stiff end, journal stirrup 33 is provided with connecting hole 261, through passing connecting axle 36 simultaneously base 1 with connecting hole 261 realizes closing device 3 stiff end with base 1's swing joint, closing device 3 can wind connecting axle 36 free rotation, it sets up to compress tightly torsional spring 32 in the connecting hole 261, it provides elasticity and maintains to compress tightly torsional spring 32 closing device 3 is right the open state of base 1 opening end. The arrangement of the compression torsion spring 32 ensures the opening speed of the compression device 3 when the compression device is opened, so that the speed requirement of releasing the captive balloon 5 is met.

The base 1 is provided with a connecting seat 11 corresponding to the supporting lug 33, the supporting lug 33 is provided with a rotating part 37, and the connecting hole 261 is arranged on the rotating part 37, so that the rotating part 37 is arranged in a ring-shaped structure; the connecting seat 11 is arranged in a bilateral symmetry mode by taking the rotating part 37 as a center, the connecting shaft 36 penetrates through the connecting seat 11 and the rotating part 37 to realize the connection between the fixed end and the base 1, and the compression torsion spring 32 is arranged in the connecting seat 11.

Preferably, a limiting block 38 is disposed on an outer circumferential surface of the rotating portion 37, and a positioning block 12 is disposed between the connecting seats 11 and corresponding to the limiting block 38; when the pressing device 3 rotates around the connecting shaft 36 to realize the opening operation of the pressing device 3, the limiting block 38 and the positioning block 12 are used for limiting the opening angle of the pressing device 3, and the pressing device 3 is prevented from being damaged due to the fact that the pressing device 3 collides with the base 1 due to an excessively large opening angle.

The number of the rollers 34 is generally 2, and the rollers 34 are arranged in parallel, and both ends of the rollers 34 are respectively fixed on the support lugs 33 and the handle frame 35, so as to ensure the overall structural strength of the pressing device 3. The handle frame 35 is arranged at the movable end of the pressing device 3, the hook 31 is arranged at the end surface of the handle frame 35 close to the locking device 2, and an operator moves the pressing device 3 through the handle frame 35 to hook the hook 31 in the groove 224; the compression torsion spring 32 provides a resilient force to ensure that the hook 31 is pressed against the inner wall of the groove 224.

The locking and releasing device of the invention is described in detail with reference to the attached drawings: before the captive balloon flies off, as shown in fig. 6, fig. 6 is a locking process diagram of the locking and releasing device; the movable end of the pressing device 3 is in an unconnected state, the locking hook 22 is in a locking position under the action of the locking torsion spring 24, and at the moment, the connecting block 222 is located at the left end position of the connecting hole 261; as shown in fig. 6 (a), when the operator places the captive balloon 5 in the placing space and presses down the handle holder, the pressing device 3 rotates around the connecting shaft 36 against the counterclockwise resilient force of the pressing torsion spring 32, and the connecting block 222 moves from the left end to the right end of the connecting hole 261; as shown in fig. 6 (b), during the process of pressing down the handle holder, the hook 31 contacts the inclined section 225 at the upper end of the locking hook 22 and continues to press down, the locking hook 22 rotates counterclockwise around the rotating shaft 221 against the resilience force of the locking torsion spring 24 in the clockwise direction under the action of the force exerted by the hook 31, the opening direction of the groove 224 changes, and the hook 31 and the inclined section 225 move relatively until the position of the groove 224 coincides, that is, the hook 31 is clamped into the groove 224; as shown in fig. 6 (c), due to the influence of the diameter of the hook 31 itself and the depth of the groove 224, when the hook 31 is engaged with the groove 224 and the locking hook 22 is restored to the locking position, the locking hook 22 rotates clockwise around the rotating shaft 221 under the resilience of the locking torsion spring 24, and the connecting block 222 is restored to the left end position of the connecting hole 261; under the combined action of the compression torsion spring 32 and the compression torsion spring 32, the hook 31 is tightly attached to the lock hook 22, and the opening of the groove 224 is inclined downwards, so that the stability of clamping between the hook 31 and the lock hook 22 is ensured.

When the captive balloon is flying away, as shown in fig. 7, fig. 7 is an unlocking process diagram of the locking and releasing device; as shown in the state transition from the diagram (a) to the diagram (b) in fig. 7, under the action of the locking cylinder 21, the telescopic rod of the locking cylinder 21 pushes the connecting portion 26 to move rightwards, so that the left end of the connecting hole 261 drives the connecting block 222 to move, the locking hook 22 overcomes the clockwise resilience of the locking torsion spring 24 to rotate around the rotating shaft 221 anticlockwise until the hook 31 is disengaged from the groove 224, the pressing device 3 rotates around the connecting shaft 36 anticlockwise under the action of the resilience of the pressing torsion spring 32, so as to realize the rapid opening of the pressing device 3, the roller 34 of the pressing device 3 is disengaged from the captive balloon 5, and the flying operation of the captive balloon is completed.

Through the structure setting of locking device 2, can realize simultaneously to closing device 3 pushes down locking and automatic release, just locking release's structure complexity is low, easy operation.

Example two

The locking and releasing device further comprises a fixing device 4, the fixing device 4 is arranged in the placing cavity, and the fixing device 4 strengthens the locking and fixing effect on the captive balloon body 5 in a locking state.

FIG. 8 is a structural view of the fixation device, as shown in FIG. 8; the fixing device 4 comprises a base 41 and a pressing part 42, the pressing part 42 is fixedly arranged on the upper part of the base 41, the pressing part 42 is connected with the base 1 through the base 41, and the base 41 is used for improving the stability of the structure and the position of the pressing part 42.

Preferably, the pressing portion 42 is provided in a protrusion shape with a symmetrical structure, that is, from the extending direction of the pressing portion 42 from two sides to the middle, the height of the pressing portion 42 gradually increases, so that an arc-shaped convex rib is formed at the middle position of the pressing portion 42; when the two ends of the pressing device 3 are connected with the base 1 at the same time, the height of the convex rib exceeds the plane formed by the two rollers 34, and the captive balloon 5 is clamped between the rollers 34 and the squeezing part 42, so that the relative friction force between the captive balloon 5 and the locking and releasing device is increased, and the locking and fixing effect of the locking and releasing device on the captive balloon 5 is improved.

The base 41 is provided with an adjusting frame 43, the adjusting frame 43 is connected with the base 1 through a screw, preferably, the adjusting frame 43 is provided with an adjusting hole 44, the adjusting hole 44 is a waist-shaped long hole, a screw passes through the adjusting hole 44 to be in threaded connection with the base 1, the position between the adjusting frame 43 and the base 1 can be adjusted by adjusting the state of the screw and the adjusting frame 43, namely, the screw is tightened, when the opposite surfaces between the screw, the adjusting frame 43 and the base 1 are tightly attached, the adjusting frame 43 and the base 1 realize the fixation of the relative position due to the relative friction force, the screw is loosened, the pressure on the opposite surfaces between the screw, the adjusting frame 43 and the base 1 is reduced, and the space between the upper surface of the extruding part 42 and the roller 34 can be adjusted by adjusting the relative position between the adjusting frame 43 and the base 1, therefore, the locking and releasing device is suitable for the captive balloon bodies 5 with different thicknesses and sizes, and the applicability of the locking and releasing device is improved.

Preferably, the number of the adjusting frames 43 is 2, and the adjusting frames 43 are symmetrically arranged on two sides of the base 1, and each adjusting frame 43 is provided with at least 2 adjusting holes 44, so as to ensure stable connection between the adjusting frame 43 and the base 1.

FIG. 9 is a bottom view of the lock release device of the present invention, as shown in FIG. 9; preferably, the bottom of the base 1 is further provided with an adjusting screw 13, the adjusting screw 13 is in threaded connection with the base 1, and the upper end of the adjusting screw 13 is in contact connection with the base 41; when the screw is in a loose state, by rotating the adjusting screw 13, the end of the adjusting screw 13 presses the base 41 to raise the position of the base 41, or the end of the adjusting screw 13 lowers to lower the position of the base 41 under the action of gravity, so that the position of the base 41 is adjusted, and meanwhile, the position of the base 41 is adjusted by the adjusting screw 13, so that the control precision is improved, and an operator can conveniently adjust the position between the fixing device 4 and the pressing device 3.

The adjusting screw 13 is further provided with a locking nut 14, the locking nut 14 is arranged on the lower portion of the base 1, and after the position of the base 41 is adjusted, the locking nut 14 is screwed to the bottom of the base 1 and tightly attached to the bottom, so that the state of the adjusting screw 13 is fixed, and the adjusting position of the base 41 is stable.

EXAMPLE III

The quick release device is mainly used for the flying device when the captive gas flies, the flying device generally comprises a flying frame, the quick release device is arranged on the flying frame, an operator fixes the captive balloon body 5 on the flying frame in a horizontal state through the quick release device, and the flying frame is adjusted to be in an inclined or vertical state, and then the captive balloon body 5 is released instantly in the process of inflating the captive balloon body 5, so that the flying of the captive balloon is realized.

Preferably, the flying rack is provided with more than 3 quick release devices simultaneously, so as to ensure the fixing effect of the flying rack on the captive balloon body 5. Because the captive balloon utricule 5 self has certain gravity, and other equipment still attach, through the structural arrangement of quick release device, avoid the in-process of flying the frame and adjusting to slope or vertical state, captive balloon utricule 5 takes place the change in position or state under self action of gravity to make the captive balloon have the better state of flying.

The foregoing is merely a preferred embodiment of the invention, which is intended to be illustrative and not limiting. It will be understood by those skilled in the art that various changes, modifications and equivalents may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A locking and releasing device is characterized by comprising a base, a locking device and a pressing device, wherein the pressing device comprises a fixed end and a movable end, the fixed end is movably connected with the base, and the movable end is connected with the base through the locking device; a placing cavity is formed between the pressing device and the base, a captive balloon body can be placed in the placing cavity, and the captive balloon body is locked and fixed through the pressing device and the base; the locking device comprises a locking oil cylinder, a locking hook, a support and a locking torsion spring, wherein the locking oil cylinder and the locking hook are arranged on the support, a fixed shaft is arranged at one end of the locking oil cylinder, the locking oil cylinder is movably connected with the support through the fixed shaft, a connecting part is arranged at the end part of a telescopic rod of the locking oil cylinder, the connecting part is provided with a connecting hole, the connecting hole is arranged in a waist-long hole, a rotating shaft is fixedly arranged in the middle of the locking hook, the locking hook is connected with the support through the rotating shaft, the locking hook can freely rotate around the rotating shaft, the locking torsion spring is arranged on the rotating shaft, and the locking torsion spring provides elasticity; the latch hook lower extreme is provided with the connecting block, the connecting block set up in the connecting hole, the latch hook with closing device joint can.

2. The lock releasing device as claimed in claim 1, wherein the connecting portion is provided in a U-shape, the connecting holes are provided at both sides of the connecting portion, the connecting block is provided in a cylindrical shape, and both ends of the connecting block pass through the connecting holes at the corresponding sides of the connecting portion, respectively; the two ends of the connecting block are provided with limiting parts, and the diameter of the cross section of each limiting part is larger than that of the connecting hole.

3. The lock releasing device as claimed in claim 1, wherein a groove is provided on the upper portion of the locking hook, a hook is provided on the movable end of the pressing device, the hook and the groove are cooperatively arranged, and the hook can be hooked in the groove; the groove opening is obliquely and downwards arranged when the lock hook is in the locking position, and the direction of the groove opening is changed into the obliquely and upwards arrangement along with the rotation of the lock hook around the rotating shaft.

4. The lock release device as claimed in claim 3, wherein the hook is provided in a cylindrical shape, and an upper portion of the hook is provided with an inclined section corresponding to the hook.

5. The lock release device according to claim 4, wherein the pressing device comprises a pressing torsion spring, a support lug, a roller and a handle holder, the support lug is arranged at the fixed end of the pressing device, the support lug is provided with a connecting hole, the movable connection of the fixed end of the pressing device and the base is realized by simultaneously passing a connecting shaft through the base and the connecting hole, the pressing device can freely rotate around the connecting shaft, the pressing torsion spring is arranged in the connecting hole, and the pressing torsion spring provides elasticity to maintain the open state of the pressing device; the rollers are arranged in 2 numbers, the rollers are arranged in parallel, two ends of each roller are fixed on the support lug and the handle frame respectively, the handle frame is arranged at the movable end of the pressing device, and the hook is arranged on the end face, close to the locking device, of the handle frame.

6. The lock releasing device as claimed in claim 5, wherein the base is provided with a connecting seat corresponding to the lug, the lug is provided with a rotating portion, and the connecting hole is provided on the rotating portion; the connecting seat is arranged in a left-right symmetrical mode by taking the rotating part as a center, the connecting shaft penetrates through the connecting seat and the rotating part simultaneously to realize the connection of the fixed end and the base, and the compression torsion spring is arranged in the connecting seat; the outer disc of rotation portion is provided with the stopper, correspond between the connecting seat the stopper sets up the locating piece.

7. The lock release device of claim 5, further comprising a fixing device disposed in the placement chamber, wherein the fixing device comprises a base and a pressing portion, the pressing portion is fixedly disposed on an upper portion of the base, and the pressing portion is connected to the base through the base; the extrusion part is arranged to be of a protrusion shape with a symmetrical structure, an arc-shaped convex rib is formed in the middle of the extrusion part, and the arc-shaped convex rib is arranged between the rollers.

8. The lock release device as claimed in claim 7, wherein the base is provided with an adjustment bracket provided with an adjustment hole, the adjustment hole being a waist-shaped hole through which a screw is threaded to the base.

9. The lock release device as claimed in claim 8, wherein the base is further provided at a bottom thereof with an adjusting screw, the adjusting screw is threadedly coupled with the base, and an upper end portion of the adjusting screw is in contact connection with the base.

10. The lock release device as claimed in claim 9, wherein the adjustment screw is further provided with a lock nut provided at a lower portion of the base.