CN212207556U - Test cabinet - Google Patents

Abstract

The application relates to the technical field of test equipment, in particular to a test cabinet, which comprises a test cabinet body, a cabinet door, a lock bar and a safety protection assembly; the cabinet door is provided with a lock hole, the lock hole comprises a first hole section and a second hole section which are mutually connected, the second hole section is positioned on one side of the cabinet door close to the safety protection assembly, and the aperture of the second hole section is gradually increased along the direction far away from the first hole section; the lock bar is rotatably arranged on the cabinet door through the lock hole; the locking bar is connected with a connecting piece and a clamping piece, and a clamping groove corresponding to the clamping piece is arranged on the test cabinet body; the safety protection assembly is arranged on the test cabinet body and comprises a driving mechanism and a clamping plate, and the driving mechanism is detachably connected with the clamping plate; the connecting piece is provided with a jack, and the clamping plate is provided with a cutting matched with the jack. This application had both guaranteed the locking effect to the cabinet door, guaranteed again that locking Assembly can carry out the dismouting maintenance fast, had solved effectively and had the inconvenient technical problem of locking Assembly dismantlement change among the prior art.

Description

Test cabinet

Technical Field

The application relates to the technical field of test equipment, in particular to a test cabinet.

Background

The fault indicator test system mainly comprises a main control cabinet and a test cabinet, and the equipment can simulate the normal operation of a 10kV line or the line state when short circuit and ground fault occur, can be used for testing various fault indicators, and can be used for the occasions of type inspection, delivery inspection, sampling inspection, arrival inspection and the like.

The test cabinet is detecting the during operation, need tightly close the cabinet door of test cabinet, control the detection by the computer in the test cabinet completely, test cabinet internal connection is a large amount of circuits simultaneously, and then carry out the during operation at the test cabinet, the operator forbids closely and is close to the test cabinet, perhaps change the adjustment to the components and parts in the test cabinet, but still have many operators at present and carry out the during operation at the test cabinet, open the test cabinet by oneself, so that the interconnecting link in the test cabinet is adjusted, but take place a lot of incident easily like this, very dangerous.

In order to prevent that the operator from opening the test cabinet by oneself when the test cabinet carries out the during operation, need install the effectual locking Assembly of locking additional to the cabinet door, but locking Assembly is after the operator maloperation is tried to open the cabinet door through rotatory locking strip, long-time rotatory locking strip leads to locking strip and other locking part to appear not hard up or wearing and tearing easily, need maintain or change corresponding part, and current locking Assembly has guaranteed the locking effect to the cabinet door, but because the structure is complicated to lead to locking Assembly to dismantle and change but very inconvenient.

SUMMERY OF THE UTILITY MODEL

In view of this, the purpose of this application provides a test cabinet, has both guaranteed the locking effect to the cabinet door, guarantees again that locking Assembly can carry out the dismouting maintenance fast, has solved effectively among the prior art and has had locking Assembly to dismantle the inconvenient technical problem of change.

In order to achieve the purpose, the application provides the following technical scheme:

a test cabinet comprises a test cabinet body, a cabinet door, a lock bar and a safety protection assembly;

the cabinet door is provided with a lock hole, the lock hole comprises a first hole section and a second hole section which are connected with each other, the second hole section is positioned on one side of the cabinet door close to the safety protection assembly, and the aperture of the second hole section is gradually increased along the direction far away from the first hole section;

the lock bar is rotatably arranged on the cabinet door through the lock hole;

the lock bar is provided with a connecting piece and a clamping piece in a connecting way, and a clamping groove corresponding to the clamping piece is arranged on the test cabinet body;

the safety protection assembly is arranged on the test cabinet body and comprises a driving mechanism and a clamping plate, and the driving mechanism is detachably connected with the clamping plate;

the connecting piece is provided with jacks, and the clamping and stopping plate is provided with inserting strips matched with the jacks.

Preferably, in the above test cabinet, the insert bar and the locking plate are detachably connected.

Preferably, in the above-mentioned test cabinet, a sliding groove is provided on the test cabinet body, and the locking plate is provided with a sliding block matched with the sliding groove.

Preferably, in the above test cabinet, the locking plate is provided with a locking hole;

the driving mechanism is provided with a clamping block matched with the clamping hole, the clamping block is provided with a threaded rod, and one end of the threaded rod, extending out of the clamping hole, is connected with a locking nut;

the driving mechanism is connected with the clamping plate through the threaded rod and the locking nut.

Preferably, in the above test cabinet, the card hole is an elliptical hole or a polygonal hole.

Preferably, in the above test cabinet, an installation groove is formed in the periphery of the lock nut, and a rubber pad is arranged in the installation groove.

Preferably, in the above test cabinet, the driving mechanism is specifically an electric cylinder, and the fixture block is connected to an expansion link of the electric cylinder.

Preferably, in the above test cabinet, a transparent window is provided on the cabinet door.

Preferably, in the above test cabinet, the universal wheels are mounted at the bottom of the test cabinet body.

Preferably, in the above test cabinet, at least two of the inserts are provided.

Compared with the prior art, the beneficial effects of this application are:

(1) in the joint spare block on the cabinet door inserted the jack of establishing the connecting piece on the cabinet door to the joint inslot on the test cabinet body and inserted the strip through the card on the card stop board of test cabinet body, utilized the combination of manual locking and mechanical locking two kinds of modes to have realized the dual locking of cabinet door for the unable direct rotatory locking strip of passing through of operator opens the cabinet door, can reduce because the incident that the operator maloperation causes, protected the operator.

(2) After an operator tries to open the cabinet door by rotating the lock bar by mistake, the lock bar and the inserting bar are easy to loosen or wear due to long-time rotation of the lock bar, the lock bar and the inserting bar need to be maintained or replaced, and the clamping plate can be directly detached from the driving mechanism due to the detachable connection of the clamping plate and the driving mechanism, so that the new inserting bar is convenient to replace, meanwhile, because the lock hole is provided with the second hole section positioned at the inner side of the cabinet door and the aperture of the second hole section is gradually increased along the direction far away from the first hole section, the opening of the lock hole for the insertion of the lock bar is effectively increased, and no matter the old lock bar is detached or the new lock bar is installed, the lock hole with a larger opening can be convenient for detaching, taking out and inserting and installing the lock bar, the dismounting and maintenance speed of the locking assembly is effectively increased, the locking effect of the cabinet door is ensured, and the effect that the locking assembly can be quickly dismounted and maintained is also ensured, the technical problem that the locking assembly is inconvenient to disassemble and replace in the prior art is effectively solved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a top transverse cross-sectional view of a test cabinet according to an embodiment of the present disclosure;

FIG. 2 is an enlarged view of a lock hole of a test cabinet according to an embodiment of the present disclosure;

FIG. 3 is an exploded view of a safety protection assembly of a test cabinet according to an embodiment of the present disclosure;

fig. 4 is a perspective view of a lock nut of a test cabinet according to an embodiment of the present disclosure;

fig. 5 is a perspective view of the test cabinet provided in the embodiment of the present application when the cabinet door is closed;

fig. 6 is a perspective view of the test cabinet provided in the embodiment of the present application when the cabinet door is opened;

fig. 7 is a schematic structural diagram of another test cabinet provided in the embodiment of the present application.

In the figure:

101 is a test cabinet body, 102 is a test controller, 103 is a connecting wire, 104 is a cabinet door, 105 is a lock hole, 105a is a first hole section, 105b is a second hole section, 106 is a lock bar, 107 is a clamping piece, 108 is a clamping groove, 201 is a control panel, 202 is a wiring hole, 203 is a connecting piece, 204 is a rack, 301 is a clamping plate, 301a is an insert bar, 302 is an insertion hole, 303 is a driving mechanism, 304 is a clamping block, 305 is a clamping hole, 306 is a threaded rod, 307 is a locking nut, 308 is a connecting block, 401 is a sliding block, 401a is a sliding groove, 402 is an installation groove, and 403 is a rubber pad.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.

The fault indicator test system mainly comprises a main control cabinet and a test cabinet, and the equipment can simulate the normal operation of a 10kV line or the line state when short circuit and ground fault occur, can be used for testing various fault indicators, and can be used for the occasions of type inspection, delivery inspection, sampling inspection, arrival inspection and the like. The test cabinet is detecting the during operation, need tightly close the cabinet door of test cabinet, control the detection by the computer in the test cabinet completely, test cabinet internal connection is a large amount of circuits simultaneously, and then carry out the during operation at the test cabinet, the operator forbids closely and is close to the test cabinet, perhaps change the adjustment to the components and parts in the test cabinet, but still have many operators at present and carry out the during operation at the test cabinet, open the test cabinet by oneself, so that the interconnecting link in the test cabinet is adjusted, but take place a lot of incident easily like this, very dangerous. In order to prevent that the operator from opening the test cabinet by oneself when the test cabinet carries out the during operation, need install the effectual locking Assembly of locking additional to the cabinet door, but locking Assembly is after the operator maloperation is tried to open the cabinet door through rotatory locking strip, long-time rotatory locking strip leads to locking strip and other locking part to appear not hard up or wearing and tearing easily, need maintain or change corresponding part, and current locking Assembly has guaranteed the locking effect to the cabinet door, but because the structure is complicated to lead to locking Assembly to dismantle and change but very inconvenient. The application provides a test cabinet has both guaranteed the locking effect to the cabinet door, guarantees again that locking Assembly can carry out the dismouting maintenance fast, has solved effectively and has had among the prior art locking Assembly to dismantle the inconvenient technical problem of change.

Referring to fig. 1 to 6, an embodiment of the present application provides a test cabinet, which includes a test cabinet body 101, a cabinet door 104, a lock bar 106, and a safety protection assembly; a lock hole 105 is formed in the cabinet door 104, the lock hole 105 comprises a first hole section 105a and a second hole section 105b which are connected with each other, the second hole section 105b is located on one side, close to the safety protection assembly, of the cabinet door 104, and the aperture of the second hole section 105b is gradually increased along the direction far away from the first hole section 105 a; the lock bar 106 is rotatably arranged on the cabinet door 104 through the lock hole 105; the locking bar 106 is provided with a connecting piece 203 and a clamping piece 107 in a connecting way, and a clamping groove 108 corresponding to the clamping piece 107 is arranged on the test cabinet body 101; the safety protection assembly is arranged on the test cabinet body 101 and comprises a driving mechanism 303 and a clamping plate 301, and the driving mechanism 303 and the clamping plate 301 are detachably connected; the connector 203 is provided with a jack 302, and the locking plate 301 is provided with a slip 301a matched with the jack 302.

The locking strip 106 and the safety protection assembly of this embodiment can be applied to the locking of the cabinet door 104 of the test cabinet, and also can be applied to the locking operation of the cabinet doors 104 of other types of cabinets, and are not described in detail in this application.

More specifically, the pore diameter of the first pore section 105a is kept constant, and the pore diameter of the second pore section 105b is gradually increased on the basis of the first pore section 105 a; the first end of the locking bar 106 passes through the locking hole 105 and protrudes out of the cabinet door 104, so that an operator can conveniently operate the locking bar 106 manually or by using a tool, the first end of the locking bar 106 is rotatably connected with the locking hole 105 through a bearing, the second end of the locking bar 106 extends along the direction close to the safety protection assembly, the connecting piece 203 and the clamping piece 107 are installed at the second end of the locking bar 106, the connecting piece 203 is connected with the end face of the second end of the locking bar 106, the clamping piece 107 is connected with the outer peripheral wall of the locking bar 106, and the central line of the locking hole 105 and the central line of the locking bar 106 are positioned on the same straight line; in order to better clamp the clamping piece 107, the cabinet door 104 can be provided with a clamping seat, the clamping seat is also provided with a clamping groove 108 for clamping the clamping piece 107, and the clamping groove 108 of the clamping seat and the clamping groove 108 of the test cabinet body 101 are both positioned on a motion track of the clamping piece 107 rotating along with the lock bar 106 to do circular motion; the driving mechanism 303 is mounted on the inner wall of the test cabinet body 101.

When the cabinet door locking device is used, the cabinet door 104 is closed, the clamping groove 108 in the test cabinet body 101 is located on a clamping piece 107 rotating motion track, then the clamping piece 107 is driven to rotate through the rotating locking strip 106, the clamping piece 107 is clamped in the clamping groove 108 in the test cabinet body 101, the rotating locking strip 106 is stopped, the inserting strip 301a on the clamping plate 301 is just opposite to the inserting hole 302 in the connecting piece 203, the driving mechanism 303 is started to drive the clamping plate 301 to move along the direction close to the connecting piece 203, and when the inserting strip 301a on the clamping plate 301 is inserted into the inserting hole 302 in the connecting piece 203, the cabinet door 104 can be locked.

The beneficial effects of this embodiment: (1) in the joint piece 107 block on the cabinet door 104 inserted the joint groove 108 on the test cabinet body 101 and inserted the jack 302 of establishing the connecting piece 203 on the cabinet door 104 through the cutting insert 301a on the stop plate 301 of test cabinet body 101, the combination of utilizing manual locking and mechanical locking two kinds of modes has realized the dual locking to cabinet door 104, make the operator directly can't open cabinet door 104 through rotatory locking strip 106, the incident that causes because operator's maloperation can have been reduced, the operator has been protected. (2) after an operator tries to open the cabinet door 104 by rotating the locking bar 106 by mistake, the locking bar 106 and the inserting bar 301a are easy to loosen or wear due to long-time rotation of the locking bar 106, the locking bar 106 and the inserting bar 301a need to be repaired or replaced, and the locking plate 301 can be directly detached from the driving mechanism 303 due to the detachable connection of the locking plate 301 and the driving mechanism 303, so that the new inserting bar 301a is convenient to replace, meanwhile, because the locking hole 105 is provided with the second hole section 105b positioned at the inner side of the cabinet door 104 and the aperture of the second hole section 105b is gradually increased along the direction far away from the first hole section 105a, the opening of the locking hole 105 for inserting the locking bar 106 is effectively increased, and regardless of detaching the old locking bar 106 or installing the new locking bar 106, the locking hole 105 with a larger opening can facilitate detaching, inserting and installing the locking bar 106, thereby effectively accelerating the detaching and repairing speed of the locking assembly, realized both having guaranteed the locking effect to cabinet door 104, guaranteed the effect that locking Assembly can carry out the dismouting maintenance fast again, solved effectively and had the inconvenient technical problem of locking Assembly dismantlement change among the prior art.

Further, in the present embodiment, the insert 301a and the locking plate 301 are detachably connected. Because when carrying out test work, the operator can the maloperation often open cabinet door 104 through rotatory locking strip 106, under the restriction effect each other of cutting 301a and jack 302, can prevent locking strip 106 and connecting piece 203 by the rotation, reached and prevented that the operator from opening the purpose of cabinet door 104 in test work, but also because the operator often maloperation, the operator can transmit cutting 301a department to the effort of locking strip 106, cutting 301a can be difficult to avoid appearing wearing and tearing after long-term work, the cabinet door 104 is difficult to appear becoming flexible, in order to guarantee the cyclic utilization of card board 301, just at this moment can utilize the connection characteristic of dismantling of card board 301 and cutting 301a, only dismantle cutting 301a from card board 301, change each cutting 301a, in order to guarantee that cabinet door 104 has good locking effect all the time. More specifically, the insert 301a may be detachably coupled to the locking plate 301 by nuts provided on both front and rear sides of the locking plate 301.

Further, in this embodiment, the test cabinet body 101 is provided with a sliding groove 401a, and the locking plate 301 is provided with a slider 401 matching with the sliding groove 401 a. Setting up through slider 401 and spout 401a can prevent on the one hand that card ends board 301 and moves along upper and lower direction, is favorable to reducing the shake that produces when card ends board 301 motion, and on the other hand provides some holding power to card ends board 301 through test cabinet body 101, is favorable to guaranteeing the stability when card ends board 301 moves, has avoided effectively that cutting 301a is difficult to insert the condition emergence of jack 302.

Further, in the present embodiment, the locking plate 301 is provided with a locking hole 305; the driving mechanism 303 is provided with a clamping block 304 matched with the clamping hole 305, the clamping block 304 is provided with a threaded rod 306, and one end of the threaded rod 306 extending out of the clamping hole 305 is connected with a locking nut 307; the drive mechanism 303 is connected to the locking plate 301 via a threaded rod 306 and a lock nut 307. The locking plate 301 can be fixed to the driving mechanism 303 by the locking nut 307 and the threaded rod 306, so that the driving mechanism 303 can drive the locking plate 301 to move away from or close to the connecting member 203, and the connection stability of the driving mechanism 303 and the locking plate 301 can be further ensured by the locking block 304 being locked into the locking hole 305 of the locking plate 301.

Further, in this embodiment, the fastening hole 305 is an elliptical hole or a polygonal hole, and particularly, in this embodiment, it is preferable that the fastening hole 305 is rectangular, and the latching block 304 is also in the shape of a matched rectangular parallelepiped, so that the fastening hole 305 and the latching block 304 have the advantages of simple processing and convenient installation, and the rectangular fastening hole 305 and the rectangular latching block 3043 can prevent the latching block 304 and the latching plate 301 from rotating relatively, thereby ensuring the normal fixed connection between the driving mechanism 303 and the latching plate 301.

More specifically, it is needless to say that the latch hole 305 may be a hole having a shape other than an elliptical hole or a polygonal hole as long as relative rotation between the latch block 304 and the latch plate 301 is not allowed.

Further, in the present embodiment, the outer periphery of the lock nut 307 is provided with a mounting groove 402, and a rubber pad 403 is provided in the mounting groove 402. The mounting groove 402 is specifically an arc-shaped groove, and the arrangement of the arc-shaped groove and the rubber pad 403 can increase the friction force when an operator holds the locking nut 307, so that the operator can mount the locking nut 307 on the threaded rod 306 conveniently.

Further, in this embodiment, the driving mechanism 303 is specifically an electric cylinder, and the fixture block 304 is connected to an expansion rod of the electric cylinder. The driving mechanism 303 is specifically an electric cylinder, and the fixture block 304 is connected with an expansion link of the electric cylinder. Can drive the direction removal that chucking plate 301 is close to connecting piece 203 through electric cylinder extension telescopic link, can drive chucking plate 301 through electric cylinder withdrawal telescopic link and remove along the direction of keeping away from connecting piece 203, drive chucking plate 301 through electric cylinder and have easy operation convenient advantage.

More specifically, a connecting block 308 is arranged at one end of the telescopic rod of the electric cylinder close to the locking plate 301, the connecting block 308 is cylindrical, the clamping block 304 is installed at one end of the connecting block 308 close to the locking plate 301, the projection of the clamping block 304 along the central line of the telescopic rod is located on the end face of the connecting block 308, that is, the cross-sectional area of the clamping block 304 is smaller than that of the connecting block 308, when the driving mechanism 303 and the locking plate 301 are connected, the end face of the connecting block 308 abuts against the rear end face of the locking plate 301, and then the locking nut 307 is continuously rotated to enable the locking nut 307 to abut against the front end face of the locking plate 301, so that the locking plate 301 and the driving.

Further, in this embodiment, be equipped with perspective window on the cabinet door 104, perspective window is that clear glass inlays and forms on cabinet door 104, can make things convenient for the operator to see through cabinet door 104 and watch the inside test condition of test cabinet body 101 and the connection condition of connecting wire 103 through perspective window, and the operator of being convenient for in time discovers the operation that the mistake stopped the test cabinet.

Further, in this embodiment, the universal wheel is installed to the bottom of test cabinet body 101, is equipped with the brake valve on the universal wheel, when needs remove the test cabinet, opens the brake valve, can remove the test cabinet, when the cabinet that awaits measuring removes corresponding position, closes the brake valve for the test cabinet no longer removes. The setting up of universal wheel makes things convenient for the operator to remove whole test cabinet, has fine suitability.

Further, in this embodiment, there are at least two insertion bars 301a, and the insertion holes 301a and the insertion holes 302 are correspondingly disposed, so that when the operator operates the rotating locking bar 106 and the connecting member 203 by mistake, the at least two insertion holes 302 and the insertion bars 301a can limit the rotation of the locking bar 106 and the connecting member 203 well, thereby achieving the effect of preventing the operator from opening the cabinet door 104 during the test operation. In particular, a plurality of insertion holes 302 are uniformly distributed on the connecting member 203, and the insertion strips 301a of the locking plate 301 are arranged corresponding to the insertion holes 302, so that the insertion holes 302 and the insertion strips 301a arranged in this way play the best restriction role.

The test cabinet body 101 provided by the embodiment is vertically arranged on the ground, and the test cabinet body 101 is generally matched with a data receiving cabinet to carry out measurement operation together; the test cabinet also comprises test controllers 102 arranged in the test cabinet body 101 and connecting wires 103 used for connecting the test controllers 102; the test controller 102 comprises a control panel 201 arranged on the test controller 102 and wiring holes 202 arranged on the control panel 201, the test controller 102 is mainly used for carrying out data test and receiving processing on various external signals, and a plurality of test controllers are generally arranged, and data transmission and processing are carried out in a distributed and graded manner, and the whole test is controlled; the connecting line 103 is connected with each test controller 102 through the connecting line hole 202 to realize the mutual transmission of data; when testing, earlier carry out the electricity with control panel 201 and test controller 102 with connecting wire 103 and be connected, then the operator passes through control panel 201 with data and inputs to test controller 102 in, then the operator closes cabinet door 104, close the back, rotatory locking strip 106 makes joint spare 107 block in joint groove 108, when opening the test, actuating mechanism 303 circular telegram is given to test cabinet body 101, make the safety protection subassembly start simultaneously, lock up cabinet door 104 this moment, test operation in the test cabinet body 101 simultaneously. The cabinet door 104 is further provided with a handle, so that an operator can open and close the cabinet body conveniently through the handle. In addition, in this embodiment, except for the manner that the clamping member 107 needs to rotate to move circularly to be clamped in the clamping groove 108, please refer to fig. 7, the clamping member 107 can also be clamped in the clamping groove 108 in a translational movement manner, at this time, the connecting member 203 is a gear concentrically arranged with the locking bar 106, the clamping member 107 is the clamping member 107 with a rack 204, the gear is driven to rotate by rotating the locking bar 106, and then the rack 204 meshed with the gear is driven to make the clamping member 107 move linearly, so that the clamping member 107 on the cabinet door 104 is clamped in the clamping groove 108 on the test cabinet body 101.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A test cabinet is characterized by comprising a test cabinet body, a cabinet door, a lock bar and a safety protection assembly;

the cabinet door is provided with a lock hole, the lock hole comprises a first hole section and a second hole section which are connected with each other, the second hole section is positioned on one side of the cabinet door close to the safety protection assembly, and the aperture of the second hole section is gradually increased along the direction far away from the first hole section;

the lock bar is rotatably arranged on the cabinet door through the lock hole;

the lock bar is provided with a connecting piece and a clamping piece in a connecting way, and a clamping groove corresponding to the clamping piece is arranged on the test cabinet body;

the safety protection assembly is arranged on the test cabinet body and comprises a driving mechanism and a clamping plate, and the driving mechanism is detachably connected with the clamping plate;

the connecting piece is provided with jacks, and the clamping and stopping plate is provided with inserting strips matched with the jacks.

2. The test cabinet of claim 1, wherein the insert and the retention plate are removably connected.

3. The test cabinet according to claim 1, wherein a sliding groove is formed on the test cabinet body, and the locking plate is provided with a sliding block matched with the sliding groove.

4. The test cabinet of claim 1, wherein the locking plate is provided with a locking hole;

the driving mechanism is provided with a clamping block matched with the clamping hole, the clamping block is provided with a threaded rod, and one end of the threaded rod, extending out of the clamping hole, is connected with a locking nut;

the driving mechanism is connected with the clamping plate through the threaded rod and the locking nut.

5. The test cabinet of claim 4, wherein the card hole is an elliptical hole, a polygonal hole.

6. The test cabinet as claimed in claim 4, wherein the locking nut has a mounting groove formed on the outer periphery thereof, and a rubber pad is disposed in the mounting groove.

7. The test cabinet according to claim 4, wherein the driving mechanism is a power cylinder, and the fixture block is connected to a telescopic rod of the power cylinder.

8. The test cabinet of claim 1, wherein the cabinet door has a see-through window.

9. The test cabinet of claim 1, wherein the bottom of the test cabinet body is mounted with universal wheels.

10. The test cabinet of any one of claims 1-9, wherein there are at least two of the inserts.

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