Safety protection mechanism for test box

Abstract

The utility model discloses a safety protection mechanism for a test box, the test box comprises a protection door and a box body, the protection door is hinged with the box body, and the safety protection mechanism comprises an explosion-proof chain, a locking assembly and a fixing piece; one end of the explosion-proof chain is detachably connected with the protective door, and the other end of the explosion-proof chain is detachably connected with the box body or the adjacent protective door; the locking assembly is connected with the protective door in a relatively rotating manner; the fixing pieces are connected with the box body, and at least one fixing piece is arranged in the height direction of the box body; the two ends of the locking assembly in the axial direction can be locked with or separated from the corresponding fixing pieces respectively. Under the combined action of the anti-explosion chain, the locking assembly and the fixing piece, the safety protection level of the test box is jointly improved.

Description

Technical Field

[0001] The utility model relates to the field of battery testing equipment, in particular to a test box safety protection mechanism. Background Art

[0002] Before leaving the factory, batteries need to be placed in a test chamber for environmental simulation and performance testing to fully verify their performance. Currently, test chamber doors typically use a single latch for direct locking, as shown in the invention patent application with publication number CN116087802 A. Because batteries can explode during testing, using a single latch for locking can easily cause the door to explode or deform, rendering it inoperable. This results in insufficient safety protection. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a safety protection mechanism for a test box to improve the safety protection level of the test box.

[0004] A test box safety protection mechanism, the test box comprising a protection door and a box body, the protection door and the box body being hinged, the safety protection mechanism comprising an explosion-proof chain, a locking assembly and a fixing member;

[0005] One end of the explosion-proof chain is detachably connected to the protective door, and the other end of the explosion-proof chain is detachably connected to the box or the adjacent protective door;

[0006] The locking assembly is connected to the protective door so as to be relatively rotatable;

[0007] The fixing member is connected to the box body, and at least the fixing member is provided in the height direction of the box body;

[0008] Both ends of the locking assembly in the axial direction can be locked with or separated from a corresponding fixing member respectively.

[0009] Furthermore, the locking assembly includes a locking rod, a locking assembly and a locking hook;

[0010] A locking hook is provided at each of the two axial ends of the locking rod, the locking hook is in transmission connection with the locking rod, and the locking hook can be engaged with or separated from the fixing member;

[0011] The lock assembly is hinged to the locking rod;

[0012] The lock assembly has a limiting end, and when the lock hook is separated from the fixing member, the limiting end is pressed against the protective door.

[0013] Furthermore, the locking assembly includes a hinge, a wrench assembly, a transmission member and a limit block;

[0014] The transmission member is in transmission connection with the locking rod;

[0015] The limiting block is located at the limiting end of the locking assembly;

[0016] The fixed end of the wrench assembly is connected to the protective door, and the movable end of the wrench assembly is hinged to the hinged end of the transmission member through the hinge member;

[0017] The limiting block is connected to the limiting end of the transmission member.

[0018] Furthermore, in the axial projection area of ​​the locking rod, an angle of 70° to 100° is formed between the hinged end of the transmission member and the limiting block.

[0019] Furthermore, the wrench assembly includes a wrench body and a hinged seat;

[0020] The hinge seat is connected to the protective door, and the wrench body is hinged to the hinge seat;

[0021] The wrench body is hinged to the hinge member at a position close to the hinge seat.

[0022] Furthermore, a clearance space for the hinged part to move is formed between the wrench body and the hinged seat.

[0023] Furthermore, the transmission member includes a sleeve and a hinge block;

[0024] The hinge block and the limiting block are respectively connected to the circumferential side walls of the sleeve.

[0025] The beneficial effects of the present invention are as follows: by providing a locking assembly and a fixing member, both sides of the protective door are locked and limited in the height direction of the box, thereby improving the tightness of the connection between the protective door and the box. Compared with the existing technology, the safety protection level is improved. In addition, the explosion-proof chain is provided. When the battery in the box explodes, even if the locking assembly is forcibly destroyed by the protective door, the opening angle of the protective door can be limited due to the limitation of the explosion-proof chain, thereby preventing damage to other objects and personnel in the adjacent space. Through the combined action of the explosion-proof chain, the locking assembly and the fixing member, the present invention jointly improves the safety protection level of the test box. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of the safety protection mechanism of the test chamber in the present utility model;

[0027] Figure 2 for Figure 1 A magnified view of part A;

[0028] Figure 3 for Figure 1 Magnified view of part B.

[0029] Description of labels:

[0030] 1. Protective door; 2. Box body; 3. Explosion-proof chain; 4. Locking assembly; 41. Locking rod; 42. Locking assembly; 421. Hinge; 422. Wrench assembly; 4221. Wrench body; 4222. Hinge seat; 423. Transmission part; 4231. Sleeve; 4232. Hinge block; 424. Limit block; 43. Lock hook; 44. Fixed seat; 5. Fixing part. DETAILED DESCRIPTION

[0031] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

[0032] Please refer to Figure 1-Figure 3 A test box safety protection mechanism includes a protective door 1 and a box body 2. In the horizontal direction, the protective door 1 is hinged to the box body 2 so that the protective door 1 can be flipped in the horizontal direction. The safety protection mechanism includes an explosion-proof chain 3, a locking assembly 4, and a fixing member 5. One end of the explosion-proof chain 3 is detachably connected to the protective door 1, and the other end of the explosion-proof chain 3 is detachably connected to the box body 2 or an adjacent protective door 1. The locking assembly 4 is relatively rotatably connected to the protective door 1. The fixing member 5 is connected to the box body 2, and at least one fixing member 5 is provided in the height direction of the box body 2. The two ends of the locking assembly 4 in the axial direction can be locked or separated with a corresponding fixing member 5 respectively. Specifically, in the height direction of the box body 2, a fixing member 5 should be provided on both sides of each protective door 1. Preferably, in the horizontal direction, there are two protective doors 1, and the two protective doors 1 are symmetrically arranged. Accordingly, each protective door 1 is provided with a locking assembly 4, and the two ends of the explosion-proof chain 3 are respectively connected to a corresponding protective door 1. Preferably, each protective door 1 is provided with two explosion-proof chains 3 in the height direction, and the explosion-proof chains 3 are detachably connected to the locking ring on the protective door 1 through a lock buckle.

[0033] It is understood that by providing the locking assembly 4 and the fixing member 5, both sides of the protective door 1 are locked and limited in the height direction of the box body 2, thereby improving the connection tightness between the protective door 1 and the box body 2. Compared with the prior art, the safety protection level is improved. In addition, the explosion-proof chain 3 is provided. When the battery in the box body 2 explodes, due to the limitation of the explosion-proof chain 3, even if the locking assembly 4 is forcibly destroyed by the protective door 1, the opening angle of the protective door 1 can be limited to avoid damage to other objects and personnel in the adjacent space. Under the joint action of the explosion-proof chain 3, the locking assembly 4 and the fixing member 5, the utility model jointly improves the safety protection level of the test box.

[0034] In some embodiments, the locking assembly 4 includes a locking rod 41, a latch assembly 42, and a locking hook 43. A locking hook 43 is provided at each axial end of the locking rod 41, which is in transmission connection with the locking rod 41 and can engage or disengage with the fixing member 5. The latch assembly 42 is hingedly connected to the locking rod 41. The latch assembly 42 has a stopper end, which presses against the protective door 1 when the lock hook 43 is separated from the fixing member 5. The latch assembly 42 cooperates with the locking rod 41 to simultaneously drive the two lock hooks 43 to engage or disengage with the corresponding fixing member 5, thereby locking and unlocking the lock hooks 43, making operation easier. A groove is defined on the side of the fixing member 5 opposite the lock hook 43, into which the lock hook 43 can engage to achieve locking. The locking rod 41 is mounted on the protective door 1 via multiple fixing seats 44, so that a gap exists between the circumferential sidewalls of the locking rod 41 and the protective door 1, providing sufficient space for the lock hook 43 to flip.

[0035] In some embodiments, the lock assembly 42 includes a hinge 421, a wrench assembly 422, a transmission member 423, and a limit block 424; the transmission member 423 is in transmission connection with the locking rod 41; the limit block 424 is located at the limit end of the lock assembly 42; the fixed end of the wrench assembly 422 is connected to the protective door 1, and the movable end of the wrench assembly 422 is hinged to the hinged end of the transmission member 423 via the hinge 421; the limit block 424 is connected to the limit end of the transmission member 423. The limit block 424 is provided to limit the turning range of the wrench assembly 422, while the transmission member 423 is provided to transmit the movement of the wrench assembly 422 to the locking rod 41, thereby driving the lock hook 43 to rotate, achieving linkage and improving transmission reliability.

[0036] In some embodiments, the wrench assembly 422 includes a wrench body 4221 and a hinge seat 4222. The hinge seat 4222 is connected to the protective door 1, and the wrench body 4221 is hingedly connected to the hinge seat 4222. The wrench body is hingedly connected to the hinge member 421 near the hinge seat 4222. The provision of the hinge seat 4222 provides a fulcrum for the rotation of the wrench body 4221 and the hinge member 421, thereby enabling the locking rod 41 to rotate relative to the protective door 1.

[0037] In some embodiments, a clearance space is formed between the wrench body 4221 and the hinge seat 4222 for the hinge 421 to move. The clearance space is formed to provide a storage space for the hinge 421 and to provide a movable space for the hinge 421 when the hinge 421 rotates to avoid movement interference.

[0038] In some embodiments, the transmission member 423 includes a sleeve 4231 and a hinge block 4232; the hinge block 4232 and the stop block 424 are respectively connected to the circumferential sidewalls of the sleeve 4231. Preferably, the sleeve 4231, the hinge block 4232, and the stop block 424 are integrally formed. The hinge block 4232 is located at the hinge end of the transmission member 423, the stop block 424 is located at the stop end of the transmission member 423, and the sleeve 4231 is in driving connection with the locking rod 41.

[0039] In some embodiments, in the axial projection area of ​​the locking rod 41, an angle of 70° to 100° is formed between the hinged end of the transmission member 423 and the limit block 424, that is, the angle formed between two adjacent planes of the limit block 424 and the hinge block 4232. Preferably, the angle is 90°.

[0040] The working principle of this utility model is:

[0041] Taking the locking assembly 4 on the right side of the accompanying drawings as an example, after closing the protective door 1, flip the wrench assembly 422 so that the wrench assembly 422 flips counterclockwise. At this time, the limit block 424 releases the pressure on the protective door 1 and gradually moves away from the protective door 1. The wrench assembly 422 drives the hinge 421 to rotate, and the hinge 421 drives the transmission member 423 to rotate. At this time, the locking rod 41 and the lock hook 43 rotate synchronously, and the lock hook 43 gradually embeds into the groove of the fixing member 5. When the wrench assembly 422 moves to the end, the lock hook 43 presses against the groove of the fixing member 5 to complete the locking, and vice versa, it is an unlocking action;

[0042] When the locking assembly 4 is locked, the two ends of the explosion-proof chain 3 are connected to the two protective doors 1 respectively.

[0043] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the description and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A test box safety protection mechanism, the test box comprising a protection door and a box body, the protection door and the box body being hinged, characterized in that: The safety protection mechanism includes an explosion-proof chain, a locking assembly and a fixing member; One end of the explosion-proof chain is detachably connected to the protective door, and the other end of the explosion-proof chain is detachably connected to the box or the adjacent protective door; The locking assembly is connected to the protective door so as to be relatively rotatable; The fixing member is connected to the box body, and at least one fixing member is provided in the height direction of the box body; The two ends of the locking assembly in the axial direction can be locked with or separated from a corresponding fixing member respectively; The locking assembly includes a locking rod, a locking assembly and a locking hook; A locking hook is provided at each of the two axial ends of the locking rod, the locking hook is in transmission connection with the locking rod, and the locking hook can be engaged with or separated from the fixing member; The lock assembly is hinged to the locking rod; The lock assembly has a limiting end, and when the lock hook is separated from the fixing member, the limiting end presses against the protective door; A groove is provided on the side of the fixing member opposite to the locking hook, and the locking hook can be embedded in the groove; the locking rod is mounted on the protective door through a plurality of fixing seats, so that there is a distance between the circumferential side wall of the locking rod and the protective door.

2. A test chamber safety protection mechanism according to claim 1, characterized in that: The lock assembly includes a hinge, a wrench assembly, a transmission part and a limit block; The transmission member is in transmission connection with the locking rod; The limiting block is located at the limiting end of the locking assembly; The fixed end of the wrench assembly is connected to the protective door, and the movable end of the wrench assembly is hinged to the hinged end of the transmission member through the hinge member; The limiting block is connected to the limiting end of the transmission member.

3. A test chamber safety protection mechanism according to claim 2, characterized in that: In the axial projection area of ​​the locking rod, an angle of 70° to 100° is formed between the hinged end of the transmission member and the limiting block.

4. A test chamber safety protection mechanism according to claim 2, characterized in that: The wrench assembly includes a wrench body and a hinged seat; The hinge seat is connected to the protective door, and the wrench body is hinged to the hinge seat; The wrench body is hinged to the hinge member at a position close to the hinge seat.

5. A test chamber safety protection mechanism according to claim 4, characterized in that: A clearance space for the hinged component to move is formed between the wrench body and the hinged seat.

6. A test chamber safety protection mechanism according to claim 2, characterized in that: The transmission member includes a sleeve and a hinge block; The hinge block and the limiting block are respectively connected to the circumferential side walls of the sleeve.

Images