CN112796596B

CN112796596B - Multi-angle limiting handle mechanism

Info

Publication number: CN112796596B
Application number: CN202110102837.7A
Authority: CN
Inventors: 熊勇; 徐勇; 程志能; 李辉
Original assignee: Dongfeng Off Road Vehicle Co Ltd
Current assignee: Dongfeng Off Road Vehicle Co Ltd
Priority date: 2021-01-26
Filing date: 2021-01-26
Publication date: 2023-10-17
Anticipated expiration: 2041-01-26
Also published as: CN112796596A

Abstract

The invention belongs to the field of automobile parts, and particularly discloses a multi-angle limiting handle mechanism. Comprises a fixed frame and an opening and closing piece, wherein the opening and closing piece is movably connected with the fixed frame; one end of the handle is movably connected with the opening and closing piece through a swing arm, and the other end of the handle is movably connected with the fixed frame; the lockpin and the swing arm are matched and arranged so as to be connected with the swing arm in a locking way or in a movable way according to the requirements, the opening and closing piece and the fixed frame are adjusted according to the requirements, and when the included angle between the opening and closing piece and the fixed frame meets the requirements, the lockpin and the swing arm are matched and locked so that the opening and closing piece and the fixed frame are relatively fixed. The invention can effectively solve the problems that the opening and closing piece of the vehicle cannot be locked after being opened, the limiting angle is single, the using adaptability is low, and meanwhile, the invention also has the characteristics of multi-angle adjustment limiting, fixable display and the like, thus being particularly suitable for multi-point limiting according to the requirement when the military vehicle needs to open doors and windows at a small angle to shoot outwards in the driving process, improving the combat adaptability and being simple and labor-saving to operate.

Description

Multi-angle limiting handle mechanism

Technical Field

The invention belongs to the field of automobile parts, and particularly relates to a multi-angle limiting handle mechanism.

Background

The opening and closing member limiting device is an auxiliary component of the fixed member connected with the opening member, and has the main functions of locking or positioning the opening angle of the opening and closing member, preventing the opening from being crashed into objects in the surrounding environment, or locking at a certain angle, facilitating related operation and the like. At present, the limiting device of the opening and closing piece adopts a hinge or a stay bar type device with single angle limiting, and the requirement of multi-point limiting locking cannot be met. .

Chinese patent CN202417108U discloses a door opening limiting mechanism, comprising a door frame fixing frame and a door fixing frame, and also provided with a limiter arm, the right arm of which is hinged with the door frame fixing frame; the left arm of the limiter arm is connected with the vehicle door fixing frame; the left arm is connected with the vehicle door fixing frame through a rolling shaft positioned in the slideway; one end of the limiter arm is connected with the door frame fixing frame through a pin shaft. However, the patent can only be used for doors and windows which are vertically and horizontally opened, when the opening part encounters a side slope or external force, the opening part is easy to move back and collide with surrounding objects, and the opening position cannot be fixed. Chinese patent CN205976820U discloses a seed opening limiting device, comprising a door frame chute and a door plate wind hook, wherein one end of the plate wind hook is connected to a side door, and the other end of the plate wind hook is placed in the chute; when the side door is closed, the wind hook is pulled out of the limiting hole by hand, and the side door is closed. Under certain special conditions, such as the opening and closing piece is in the opening process, the opening space given by the surrounding environment is insufficient, and when a single fixed angle designed by the limiting device cannot be reached, or when a military vehicle needs to open a door or window at a small angle to shoot outwards in the driving process, the scheme cannot meet the requirement that the door or window can be limited at multiple points according to actual condition requirements.

Based on the defects and shortcomings, the art needs to propose a multi-angle limit handle mechanism to solve the problems that after a vehicle opening and closing part is opened, locking cannot be achieved, the limit angle is single, and the use adaptability is low.

Disclosure of Invention

Aiming at the defects or improvement demands of the prior art, the invention provides a multi-angle limit handle mechanism, wherein the multi-angle limit handle mechanism is correspondingly designed by combining the characteristics of a vehicle and the handle angle adjustment process characteristics of the vehicle, and the key components such as a fixed frame, an opening and closing piece, the structures of a handle and a lock pin and the specific setting modes of the handle and the lock pin are researched and designed, so that the problems that the opening and closing piece of the vehicle cannot be locked after being opened, the limit angle is single and the use adaptability is low can be correspondingly solved, and the multi-angle limit handle mechanism also has the characteristics of multi-angle adjustment limit, fixability and the like, so that the multi-angle limit handle mechanism is particularly suitable for multi-point limit according to requirements when a military vehicle needs to open doors and windows at a small angle to shoot in the driving process, and the operational adaptability is improved.

In order to achieve the above purpose, the invention provides a multi-angle limit handle mechanism, which comprises a fixed frame and,

the opening and closing piece is movably connected with the fixed frame;

one end of the handle is movably connected with the opening and closing piece through a swing arm, and the other end of the handle is movably connected with the fixed frame;

the lock pin is matched with the swing arm and is used for being in locking connection or movable connection with the swing arm according to requirements;

the swing arm is sleeved on one side of the handle close to the opening and closing piece and is in sliding connection with the handle;

in this way, the opening and closing piece and the fixed frame are adjusted according to the requirement, and when the included angle between the opening and closing piece and the fixed frame meets the requirement, the lock pin and the swing arm are matched and locked, so that the opening and closing piece and the fixed frame are relatively fixed.

As a further preferable aspect, the limiting member includes a shallow limiting groove and a deep limiting groove, both of which include a buffering arc surface and a fixed vertical surface, and the height of the fixed vertical surface of the shallow limiting groove is smaller than that of the fixed vertical surface of the deep limiting groove.

As a further preferable mode, the lock pin further comprises a compression spring sleeved on the lock tongue, and the handle is further provided with a hollow groove for accommodating the compression spring.

As a further preferable mode, the handle is further provided with a pulley, the swing arm is provided with a sliding groove, and the pulley penetrates through the sliding groove to be fixedly connected with the handle.

As a further preferable mode, the handle is further provided with a holding groove and a first hinge shaft, the holding groove is used for holding, and the first hinge shaft is matched with a first hinge seat arranged on the fixed frame.

As a further preferable mode, a knob is further arranged on the handle.

As a further preferred aspect, the handle is any one of a "V" shape, a "U" shape, or an "L" shape.

As a further preferable mode, a plurality of locking holes are formed in one side, close to the lock pin, of the swing arm, a second hinge shaft is further arranged on the swing arm, a second hinge seat is arranged on the opening and closing piece, and the second hinge shaft is matched with the second hinge seat.

Preferably, the fixed frame is further provided with a third hinge support, the opening and closing member is further provided with a third hinge shaft, and the third hinge support is matched with the third hinge shaft.

In general, compared with the prior art, the above technical solution conceived by the present invention mainly has the following technical advantages:

1. the invention can effectively solve the problems that the opening and closing piece of the vehicle cannot be locked after being opened, the limiting angle is single, the using adaptability is low, and meanwhile, the invention also has the characteristics of multi-angle adjustment limiting, fixable display and the like, thus being particularly suitable for shooting outside when a military vehicle needs to open doors and windows at a small angle in the driving process, and being capable of carrying out multi-point limiting according to the requirement and improving the combat adaptability.

2. The invention can lock the handle after the angle of the handle is adjusted, thereby meeting the requirement that the opening and closing piece is locked at any angle and having strong adaptability.

3. In the locking process of the handle mechanism, the compression spring is utilized to provide return force, so that the operation is convenient and labor-saving.

4. According to the invention, through the fixed frame, the opening and closing part, the handle and the swing arm which are movably connected with each other, the angle of the opening and closing part can be adjusted as required, the angle adjustment range is 0-180 degrees, and the use adaptability is strong.

Drawings

FIG. 1 is a schematic view of a multi-angle limit handle mechanism according to a preferred embodiment of the present invention;

FIG. 2 is a schematic view of the structure of the handle of FIG. 1;

FIG. 3 is another schematic structural view of the handle of FIG. 1;

FIG. 4 is a cross-sectional view A-A as referred to in FIG. 3;

FIG. 5 is a schematic view of the latch involved in FIG. 1;

FIG. 6 is a schematic structural view of the swing arm involved in FIG. 1;

FIG. 7 is a schematic view of the shutter of FIG. 1;

FIG. 8 is a schematic structural view of the fixing frame referred to in FIG. 1;

FIG. 9 is a schematic view of a multi-angle limit handle mechanism of the type shown in FIG. 1 in a locked state;

FIG. 10 is a schematic view of the multi-angle limit handle mechanism of FIG. 1 in an unlocked state;

fig. 11 is a schematic view of a multi-angle limit handle mechanism according to a preferred embodiment of the present invention.

Like reference numerals denote like technical features throughout the drawings, in particular: 1-handle, 101-first hinge shaft, 102-hand holding groove, 103-pulley, 104-empty groove, 105-limit flange, 2-lock pin, 201-lock tongue, 202-compression spring, 203-knob, 204-shallow limit groove, 205-deep limit groove, 3-swing arm, 301-locking hole, 302-slide groove, 303-second hinge shaft, 4-shutter, 401-second hinge seat, 402-third hinge shaft, 5-fixed frame, 501-first hinge seat, 502-third hinge seat.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.

As shown in fig. 1 to 9, the multi-angle limit handle mechanism provided by the embodiment of the invention comprises a fixed frame 5, an opening and closing piece 4, a handle 1, a lock pin 2 and a swing arm 3, wherein the opening and closing piece 4 is movably connected with the fixed frame 5; one end of the handle 1 is movably connected with the opening and closing piece 4 through a swing arm 3, and the other end of the handle 1 is movably connected with the fixed frame 5; the lock pin 2 is matched with the swing arm 3 and is used for being in locking connection or movable connection with the swing arm 3 according to requirements; in this way, the opening and closing member 4 and the fixed frame 5 are adjusted according to the requirement, and when the included angle between the opening and closing member 4 and the fixed frame 5 meets the requirement, the lock pin 2 and the swing arm 3 are locked in a matched manner, so that the opening and closing member 4 and the fixed frame 5 are relatively fixed.

Specifically, in the present invention, the connection between the handle 1 and the fixed frame 5 and the connection between the fixed frame 5 and the shutter 4 are located on both sides of the fixed frame 5. Meanwhile, when the angle between the opening and closing member 4 and the fixed frame 5 is 0 °, as shown in (a) of fig. 11, the joint of the swing arm 3 and the opening and closing member 4 is located at the side of the opening and closing member 4 facing the handle 1, in this way, when a certain opening and closing force is applied to the handle 1, the opening and closing member 4 rotates around the joint of the opening and closing member 4 and the fixed frame 5 under the acting force of the handle 1, and when the angle between the opening and closing member 4 and the fixed frame 5 is a designated angle, the lock pin 2 rotates, so that the lock pin 2 moves forward and locks with the swing arm 3, thereby realizing the fixation of the opening and closing member 4 and the fixed frame 5 at the designated angle.

Further, in the present invention, one end of the swing arm 3 is rotatably connected to the shutter 4, and the other end is slidably connected to the handle 1, in such a manner that the angle between the shutter 4 and the fixed frame 5 is arbitrarily adjusted in the range of 0 ° to 180 °, and at any angle in this range, the lock pin 2 can be kept in a vertical state with the swing arm 3 to be locked-connected to the swing arm 3.

More specifically, in the present invention, the limiting member includes a shallow limiting groove 204 and a deep limiting groove 205, where the shallow limiting groove 204 and the deep limiting groove 205 each include a buffering arc surface and a fixed vertical surface, and the height of the fixed vertical surface of the shallow limiting groove 204 is smaller than the height of the fixed vertical surface of the deep limiting groove 205. The lock pin 2 further comprises a compression spring 202 sleeved on the lock tongue 201, and the handle 1 is further provided with a hollow groove 104 for accommodating the compression spring 202. The handle 1 is also provided with a pulley 103, the swing arm 3 is provided with a chute 302, and the pulley 103 passes through the chute 302 to be fixedly connected with the handle 1. The handle 1 is further provided with a holding groove 102 and a first hinge shaft 101, the holding groove 102 is used for holding, and the first hinge shaft 101 is matched with a first hinge seat 501 arranged on the fixed frame 5. The handle 1 is also provided with a knob 203. The handle 1 is in any one shape of V shape, U shape or L shape. The swing arm 3 is close to one side of lockpin 2 is equipped with a plurality of locking holes 301, still be equipped with second hinge 303 on the swing arm 3, be equipped with second hinge 401 on the shutter 4, second hinge 303 with the cooperation of second hinge 401 sets up. The fixed frame 5 is further provided with a third hinge base 3, the opening and closing member 4 is further provided with a third hinge shaft 402, and the third hinge base 3 is matched with the third hinge shaft 402. Correspondingly, the multi-angle limiting handle can realize 180-degree rotation of the opening and closing part 4 around the fixed frame 5, and can be locked and fixed at any required angle, so that the problems that the opening and closing part of a vehicle cannot be locked after being opened, the limiting angle is single, and the use adaptability is low are solved.

Specifically, the lock pin 2 is disposed on the handle 1 and cooperates with the swing arm 3, so that the handle 1 can slide along the swing arm 3, and the angle between the fixed frame 5 and the shutter 4 can be adjusted arbitrarily. More specifically, the handle 1 is hinged on the fixed frame through the hinge, is equipped with the empty slot 104 in the handle 1, be equipped with compression spring 202 in the empty slot 104, the lockpin 2 includes knob 203 and spring bolt 201, compression spring 202 suit is on spring bolt 201, be equipped with two kinds of spacing grooves of depth on the knob, be equipped with limit flange 105 in the empty slot 104 of handle 1, spring bolt 201 locking is in locking hole 301, in the swing arm 3 was located to locking hole 301, be equipped with bar spout 302 on the swing arm 3, still be equipped with pulley 103 on the handle 1, pulley 103 passes through spout 302 sliding connection on swing arm 3, be equipped with the hinge on the swing arm 3, the hinge passes through the hinge and links to each other with shutter 4, the hinge is fixed on shutter 4, shutter 4 articulates on fixed frame 5 through the hinge.

In a preferred embodiment of the invention, the multi-angle limit handle mechanism comprises a handle body 1, a hinge shaft 101 is arranged on the handle body 1, the hinge shaft 101 is hinged on a hinge seat 501 and can rotate around the hinge seat 360 degrees, a hand holding groove 102 is arranged on the handle body 1 and can hold the hand holding groove 102 to open or close, a pulley 103 is arranged on the handle body 1, the pulley 103 can slide on a sliding groove 302, a hollow groove 104 is arranged in the handle body 1, a compression spring 202 is arranged in the hollow groove 104, the compression spring 202 is sheathed on a lock pin 2, the lock pin 2 can slide in the hollow groove 104, one end of the lock pin 2 is provided with a knob 203, the knob 203 is provided with a shallow limit groove 204 and a deep limit groove 205, the switch between the shallow limit groove 204 and the deep limit groove 205 can be carried out every time by rotating ninety degrees clockwise the knob 203, the other end of the lock pin 2 is provided with a lock tongue 201, the lock tongue 201 can be disassembled into or withdrawn from a locking hole 301, the locking hole 301 is arranged in the swing arm 3, a sliding groove 302 is arranged on the swing arm 3, one end of the swing arm 3 is clamped on the pulley 103 through the sliding groove 302 and is connected with the handle 1, the other end of the swing arm 3 is hinged on the hinge seat 401 through a hinge shaft 303 which is provided with the swing arm, the opening and closing member 4 is hinged on the hinge seat 502 through a hinge shaft 402 which is provided with the swing arm, the fixed frame 5 is connected with the opening and closing member 4, when the knob 203 is rotated to enable the limit flange 105 to slide into the shallow limit groove 204, the lock pin 2 tightens the compression spring 202 to drive the lock tongue 201 to withdraw from the locking hole 301, the pulley 103 can slide in the sliding groove 302, the push-pull handle body 1 pushes the opening and closing member 4 to rotate around the hinge shaft 402 through the swing arm 3, meanwhile, the swing arm 3 can carry out linkage rotation around the hinge shaft 303 according to the relative positions of the handle body 1 and the opening and closing member 3 at two ends, at the moment, the opening and closing member 3 is in an active state, as shown in figure 10, when the knob 203 is rotated ninety degrees clockwise again so that the limit flange 105 slides into the deep limit groove 205, the compression spring 202 rebounds to push the lock pin 2 to drive the lock tongue 201 to enter the locking hole 301, at this time, the pulley 103 cannot slide in the chute 302, the push-pull handle body 1 pushes the opening and closing member 4 to rotate around the hinge shaft 402 through the swing arm 3, at this time, the opening and closing member 3 is in a locking state, as shown in fig. 9, according to actual situation, the lock can be opened at a required angle position and locked, and the structure is simple and the operation is convenient.

More specifically, in the present invention, the swing arm 3 includes a swing arm body, a sliding groove 302 provided on the swing arm body, and a plurality of locking holes 301, wherein the pulley 103 passes through the sliding groove 302, and two ends of the pulley 103 are fixedly connected with the handle 1, and a middle part of the pulley 103 is movably connected with the sliding groove 302, in this way, during the rotation of the opening and closing member 4, one end of the handle 1 connected with the swing arm 3 can slide along the sliding groove 302, so that the lock pin 2 is always parallel to the central axis of the locking hole 301. In a preferred embodiment of the present invention, a plurality of locking holes 301 are arranged in an array, and the distance between adjacent locking holes 301 can be adjusted as required, for example, by arranging the distance between adjacent locking holes 301, so as to control the opening and closing angle of the shutter 4. If, set up 16 locking holes of evenly arranging on the swing arm body to can realize that the contained angle between shutter 4 and the fixed frame 5 is adjustable: 10 °, 20 °, 30 °, … °, 170 °, wherein when the angle between the shutter 4 and the fixed frame 5 is 0 °, locking is performed by the door lock, and when the angle between the shutter 4 and the fixed frame 5 is 180 °, locking is not performed. Of course, the above is only a preferred embodiment of the present embodiment, and the distance between the locking holes may be arbitrarily adjusted as required. The distance between the locking holes arranged in any other way is within the scope of the invention.

As another preferred embodiment of the present invention, the pulley 103 is further sleeved with a drum, which may be a hard steel drum or a flexible wear-resistant drum, wherein the flexible wear-resistant drum is superior to the hard steel drum. The flexible wear-resistant rotary drum provides the rotating force when the handle 1 and the swing arm 3 relatively move, so that the abrasion of the handle 1 and the sliding groove 302 is reduced, and on the other hand, the noise when the handle 1 and the swing arm 3 relatively move can be reduced. Further, a plurality of rolling members rotatable along the axial direction of the chute 302 are embedded in the inner side wall of the chute 302, and the rolling members are also used for reducing noise and friction during the relative movement of the handle 1 and the swing arm 3. In one aspect, the rolling elements are balls or rollers.

In another preferred embodiment of the present invention, the swing arm body is a triangle-like structure, wherein the hinge shaft 303 is disposed at one vertex angle of the triangle-like structure, the chute 302 is disposed at a bottom edge of the triangle-like structure opposite to the vertex angle, and the locking hole is disposed at a bottom end of the bottom edge and opposite to the locking pin 2. And each corner of the triangle-like structure is provided with a rounding structure so as to prevent each part from interfering in the rotating motion process.

In another preferred embodiment of the present invention, the limiting member includes a shallow limiting groove 204 and a deep limiting groove 205, the number of the shallow limiting groove 204 and the deep limiting groove 205 are the same, the shallow limiting groove 204 and the deep limiting groove 205 are both arranged, the plurality of shallow limiting grooves 204 and the deep limiting groove 205 are uniformly arranged along the circumference, and each shallow limiting groove 204 and the deep limiting groove 205 includes a section of buffering cambered surface and a fixed vertical surface, in this way, when the lock pin 2 rotates by a corresponding angle, the plurality of shallow limiting grooves 204 are matched with the limiting flange, the lock pin 2 is retracted out of the locking hole, and when the compression spring is compressed and then rotates by a corresponding angle, the deep limiting groove 205 is matched with the limiting flange to limit and fix, and meanwhile, in the process of screwing in the deep limiting groove 205, the compression spring is pushed back, the lock pin 2 is pushed to advance and extend into the locking hole, so that the locking of the opening and closing member 4 and the fixed frame 5 is realized. In one embodiment of the present invention, two shallow limiting grooves 204 and two deep limiting grooves 205 are provided, i.e. one shallow limiting groove 204 or one deep limiting groove 205 is provided in an azimuth angle of 90 °. In another embodiment, the shallow limit groove 204 and the deep limit groove 205 are each provided with three, i.e. one shallow limit groove 204 or deep limit groove 205 is provided in an azimuth angle of 60 °.

Accordingly, the limit flange 105 is provided on the handle 1, as shown in fig. 1, and in the present invention, the structure of the limit flange 105 is adapted to the structure of the deep limit groove 205, so as to cooperate with and lock with the deep limit groove 205 during the screwing process of the deep limit groove 205. More specifically, when the knob 203 is rotated to enable the limit flange 105 to slide into the shallow limit groove 204, the lock pin 2 tightens the compression spring 202 to drive the lock tongue 201 to withdraw from the locking hole 301, at this time, the pulley 103 can slide in the chute 302, the push-pull handle body 1 pushes the opening and closing member 4 to rotate around the hinge shaft 402 through the swing arm 3, meanwhile, the swing arm 3 can rotate around the hinge shaft 303 in a linkage manner according to the relative positions of the handle body 1 and the opening and closing member 3 at two ends, at this time, the opening and closing member 3 is in an active state, as shown in fig. 10, when the knob 203 is rotated clockwise again by a corresponding angle to enable the limit flange 105 to slide into the deep limit groove 205, the compression spring 202 rebounds to push the lock pin 2 to drive the lock tongue 201 to enter the locking hole 301, at this time, the pulley 103 cannot slide in the chute 302, the push-pull handle body 1 pushes the opening and closing member 4 cannot rotate around the hinge shaft 402 through the swing arm 3, at this time, the opening and closing member 3 is in a locking state, as shown in fig. 9, at the required, can be opened at a required angle and locked according to practical situation.

As shown in FIG. 11, the multi-angle limit handle mechanism provided by the invention realizes that the angle of the opening and closing member can be adjusted as required through the fixed frame, the opening and closing member, the handle and the swing arm which are movably connected with each other, and the angle adjustment range is 0-180 degrees. The opening and closing piece of a certain military vehicle can be opened to a required position, the opening angle of the opening and closing piece is locked, and the opening and closing piece is simple in structure and convenient to operate.

It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the invention and is not intended to limit the invention, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.

Claims

1. A multi-angle limit handle mechanism is characterized by comprising a fixed frame (5) and a handle,

the opening and closing piece (4), the opening and closing piece (4) is movably connected with the fixed frame (5);

one end of the handle (1) is movably connected with the opening and closing piece (4) through a swing arm (3), and the other end of the handle (1) is movably connected with the fixed frame (5);

the lock pin (2) is matched with the swing arm (3) and is used for being in locking connection or movable connection with the swing arm (3) according to requirements;

in this way, the opening and closing piece (4) and the fixed frame (5) are adjusted according to the requirement, and when the included angle between the opening and closing piece (4) and the fixed frame (5) meets the requirement, the lock pin (2) and the swing arm (3) are matched and locked, so that the opening and closing piece (4) and the fixed frame (5) are relatively fixed;

the lock pin (2) comprises a limiting piece and a lock tongue (201) fixedly connected with the limiting piece, a limiting flange (105) which is arranged corresponding to the limiting piece is arranged on the handle (1), and the matching position of the limiting piece and the limiting flange (105) is adjusted so as to realize the advancing and retreating of the lock tongue (201);

one side of the swing arm (3) close to the lock pin (2) is provided with a plurality of locking holes (301), the swing arm (3) is also provided with a second hinge shaft (303), the opening and closing piece (4) is provided with a second hinge seat (401), and the second hinge shaft (303) is matched with the second hinge seat (401).

2. The multi-angle limit handle mechanism according to claim 1, wherein the limit member comprises a shallow limit groove (204) and a deep limit groove (205), the shallow limit groove (204) and the deep limit groove (205) each comprise a buffering cambered surface and a fixed vertical surface, and the height of the fixed vertical surface of the shallow limit groove (204) is smaller than the height of the fixed vertical surface of the deep limit groove (205).

3. The multi-angle limit handle mechanism according to claim 1, wherein the lock pin (2) further comprises a compression spring (202) sleeved on the lock tongue (201), and the handle (1) is further provided with a hollow groove (104) for accommodating the compression spring (202).

4. The multi-angle limiting handle mechanism according to claim 1, wherein the handle (1) is further provided with a pulley (103), the swing arm (3) is provided with a sliding groove (302), and the pulley (103) is fixedly connected with the handle (1) through the sliding groove (302).

5. The multi-angle limiting handle mechanism according to claim 1, wherein the handle (1) is further provided with a holding groove (102) and a first hinge shaft (101), the holding groove (102) is used for holding, and the first hinge shaft (101) is matched with a first hinge seat (501) arranged on the fixed frame (5).

6. The multi-angle limit handle mechanism according to claim 1, wherein a knob (203) is further provided on the handle (1).

7. The multi-angle limit handle mechanism according to claim 1, wherein the handle (1) is any one of a "V" shape, a "U" shape or an "L" shape.

8. The multi-angle limiting handle mechanism according to claim 1, wherein a third hinge seat (3) is further arranged on the fixed frame (5), a third hinge shaft (402) is further arranged on the opening and closing member (4), and the third hinge seat (3) is matched with the third hinge shaft (402).