Automatic lock of shielding cabinet

Abstract

The utility model relates to the technical field of shielding cabinets, in particular to an automatic lock of a shielding cabinet, which comprises a lock head mounted on a cabinet door and a locking part mounted on a cabinet body, the lock head comprises an elastic piece, a clamping head and a mounting part, the mounting part is arranged on the cabinet door, and the clamping head is connected with the mounting part through the elastic piece; the locking part comprises a clamping jaw mechanism, a limiting column and an electric control telescopic assembly. The limiting column is installed on the cabinet body and is hollow, and openings are formed in the two ends of the limiting column. The electric control telescopic assembly is installed in the limiting column and controls the clamping jaw mechanism to horizontally move in the axis direction of the limiting column, and the clamping jaw mechanism can clamp the clamping head. The beneficial effects of the utility model are that the clamping jaw mechanism clamps the clamping head of the lock head, and the electric control telescopic assembly drives the clamping jaw to move towards the closing direction of the cabinet door, so that the elastic lock head is in a tight state, a tensioning force is continuously provided, and the leakproofness of the shielding cabinet is improved. And only the door needs to be closed in the closing process, thereby being more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of shielding cabinets, and specifically discloses an automatic lock for a shielding cabinet. Background Art

[0002] Shielding cabinets have become an indispensable standard accessory and basic installation part in the operation of computers, network servers, switches, small devices, electronic terminals, various communication electronic equipment and a large number of monitoring equipment. In order to prevent the above-mentioned equipment from being interfered by external electromagnetic waves during operation and to prevent the leakage of information transmitted by the above-mentioned equipment during operation, electromagnetic shielding cabinets are often used to physically isolate electromagnetic signals. Its locking mechanism is one of the key points of product design.

[0003] Chinese invention patent application CN114135175A discloses a shielding cabinet lock installed on a shielding cabinet. The shielding cabinet includes a cabinet body and a door panel. A lock gear is provided on the cabinet body, and a locking groove is provided on the lock gear. A slidable locking rod is installed on the door panel, and its sliding direction is parallel to the door panel surface. A driving mechanism is also installed on the door panel, and the output end of the driving mechanism is connected to the locking rod. Based on the above design, the driving mechanism drives the locking rod to slide into the locking groove, and the door panel is subjected to pressure directed to the cabinet body to achieve locking. However, this shielding cabinet lock requires manual operation of the locking rod to slide the lock gear into the locking groove, which is very cumbersome to use and causes the cabinet door to not be closed tightly. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an automatic lock for a shielding cabinet, which can conveniently open and close the cabinet door and improve the airtightness of the shielding cabinet.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] Provided is an automatic lock for a shielded cabinet, comprising a lock head mounted on a cabinet door and a locking portion mounted on a cabinet body, characterized in that: the lock head comprises a clamping head, an elastic member and a mounting portion, the mounting portion is arranged on the cabinet door, and the clamping head and the mounting portion are connected via an elastic member;

[0007] The locking part includes a clamping claw mechanism and an electrically controlled telescopic assembly; the clamping claw mechanism is used to elastically clamp the clamping head, the electrically controlled telescopic assembly is installed on the cabinet, the electrically controlled telescopic assembly includes a telescopic part, and the clamping claw mechanism is coaxially connected to the telescopic part;

[0008] When the clamping head extends into the interior of the clamping jaw mechanism and is clamped by the clamping jaw mechanism, the electrically controlled telescopic assembly drives the clamping jaw mechanism to move along the axis direction of the locking portion.

[0009] Furthermore, it also includes a limiting column, which is hollow and has openings at both ends. The limiting column is fixed on the cabinet body, and the clamping claw mechanism and the telescopic part are arranged in the limiting column and are coaxial with the limiting column.

[0010] Furthermore, the clamping mechanism includes a claw column and a claw piece, the claw piece is elastic, and a plurality of the claw pieces are evenly arranged in the circumferential direction of the end face of the claw column; the outermost side of the claw piece abuts against the inner wall of the limiting column.

[0011] Furthermore, the electrically-controlled telescopic assembly further comprises a self-locking switch for controlling the extension or retraction of the telescopic portion of the electrically-controlled telescopic assembly, and the self-locking switch is arranged on the end surface of the claw column facing the claw piece.

[0012] Furthermore, it also includes a button, which passes through the lock head along the lock head axis and is inserted into the lock head, with a clamping head and a mounting portion protruding from both ends of the button, and the button is used to abut against the self-locking switch.

[0013] Further, the electrically controlled telescopic assembly comprises a motor and a telescopic portion driven by the motor, and the telescopic portion comprises a screw and a threaded column matched with the screw;

[0014] The threaded column is coaxially connected to one end of the claw column away from the claw piece;

[0015] The limiting column is provided with a sliding groove, and the claw column is provided with a sliding block corresponding to the sliding groove.

[0016] Furthermore, a groove is provided on the side wall of the clamping head, and the free end of the claw piece is clamped in the groove when the clamping jaw mechanism clamps the clamping head.

[0017] Furthermore, a rubber buffer ring is provided between the cabinet door and the cabinet body.

[0018] Furthermore, one end of the clamping head close to the clamping claw is a curved surface.

[0019] Furthermore, a return spring is provided between the cabinet door and the cabinet body.

[0020] The beneficial effect of the utility model is that the utility model provides an automatic lock for a shielding cabinet, and the lock head is elastic. When the cabinet door is closed, the clamping claw mechanism clamps the clamping head of the lock head, and the electric control telescopic component drives the clamping claw to move in the closing direction of the cabinet door, so that the elastic lock head is in a tight state, so as to continuously provide a tightening force, thereby improving the airtightness of the shielding cabinet. And the closing process only requires closing the door, which is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the relevant parts of the locking part when the automatic locking door of the shielding cabinet of the utility model is opened and the clamping claws are tightened;

[0022] Figure 2This is a schematic diagram of the state in which the automatic lock of the shielding cabinet of the utility model is installed on the shielding cabinet;

[0023] Description of labels:

[0024] 1. Lock head; 11. Elastic member; 12. Clamping head; 121. Groove; 13. Mounting part; 14. Button;

[0025] 2. Locking part; 21. Clamping mechanism; 211. Claw column; 2111. Self-locking switch; 212. Claw piece; 213. Slider; 22. Electric telescopic assembly; 221. Motor; 222. Telescopic part; 2221. Screw rod; 2222. Threaded column;

[0026] 3. Limiting column; 31. Slideway;

[0027] 4. Rubber buffer ring;

[0028] 5. Return spring. DETAILED DESCRIPTION

[0029] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0030] See also Figure 1-2 The utility model provides an automatic lock for a shielded cabinet, comprising a lock head 1 installed on a cabinet door and a locking portion 2 installed on a cabinet body, characterized in that: the lock head 1 comprises a clamping head 12, an elastic member 11 and a mounting portion 13, the mounting portion 13 is arranged on the cabinet door, and the clamping head 12 and the mounting portion 13 are connected by the elastic member 11;

[0031] The locking part 2 includes a clamping claw mechanism 21 and an electric telescopic assembly 22; the clamping claw mechanism 21 is used to elastically clamp the clamping head 12, the electric telescopic assembly 22 is installed on the cabinet, the electric telescopic assembly 22 includes a telescopic part 222, and the clamping claw mechanism 21 is coaxially connected with the telescopic part 222;

[0032] When the clamping head 12 extends into the clamping jaw mechanism 21 and is clamped by the clamping jaw mechanism 21 , the electrically controlled telescopic assembly 22 drives the clamping jaw mechanism 21 to move along the axis direction of the locking portion 2 .

[0033] From the above description, it can be seen that a shielding cabinet automatic lock has a lock head 1 that is elastic. When closing the cabinet door, the clamping claw mechanism 21 clamps the clamping head 12 of the lock head 1, and the electric control telescopic component 22 drives the clamping claw to move in the closing direction of the cabinet door, so that the elastic lock head 1 is in a taut state, so as to continuously provide a tightening force to improve the airtightness of the shielding cabinet. And the closing process only requires closing the door, which is more convenient.

[0034] Furthermore, it also includes a limiting column 3, which is hollow and has openings at both ends. The limiting column 3 is fixed on the cabinet, and the clamping claw mechanism 21 and the telescopic part 222 are arranged in the limiting column 3 and are coaxial with the limiting column 3.

[0035] Furthermore, the clamping mechanism 21 includes a claw column 211 and a claw piece 212 , the claw piece 212 is elastic, and a plurality of claw pieces 212 are evenly arranged in the circumferential direction of the end face of the claw column 211 ; the outermost side of the claw piece 212 abuts against the inner wall of the limiting column 3 .

[0036] From the above description, it can be seen that the outermost side of the claw piece 212 abuts against the inner wall of the limiting column 3. When the electric-controlled telescopic component 22 controls the clamping mechanism 21 to retract into the limiting column 3, the inner wall of the limiting column 3 locks the claw piece 212 to prevent the lock head 1 from loosening.

[0037] Furthermore, the electrically controlled telescopic component 22 further includes a self-locking switch 2111 for controlling the telescopic portion 222 of the electrically controlled telescopic component 22 to extend or retract, and the self-locking switch 2111 is disposed on the end surface of the claw column 211 facing the claw piece 212 .

[0038] Furthermore, it also includes a button 14, which passes through the lock head 1 along the axis of the lock head 1 and is inserted into the lock head 1, with the clamping head 12 and the mounting portion 13 protruding from both ends of the button 14, and the button 14 is used to abut against the self-locking switch 2111.

[0039] As can be seen from the above description, the end surface of the claw column 211 facing the claw piece 212 is provided with a self-locking switch 2111 for controlling the extension or retraction of the electric telescopic component 22, which can cooperate with the button 14 inserted in the lock head 1. When closing the door, the button 14 protruding from the clamping head 12 touches the self-locking switch 2111 to control the retraction of the electric telescopic component 22. When opening the door, the end of the button 14 protruding from the mounting portion 13 is pressed to control the extension of the electric telescopic component 22.

[0040] Further, the electric-controlled telescopic assembly 22 includes a motor 221 and a telescopic portion 222 driven by the motor 221, and the telescopic portion 222 includes a screw rod 2221 and a threaded column 2222 matched with the screw rod 2221;

[0041] The threaded column 2222 is coaxially connected to one end of the claw column 211 away from the claw piece 212;

[0042] A sliding groove 31 is disposed on the limiting column 3 , and a sliding block 213 corresponding to the sliding groove 31 is disposed on the claw column 211 .

[0043] It can be seen from the above description that the electric-controlled telescopic assembly 22 is a screw structure with high stability, high precision, light weight and compact structure.

[0044] Furthermore, a groove 121 is provided on the side wall of the clamping head 12 , and when the clamping jaw mechanism 21 clamps the clamping head 12 , the free end of the claw piece 212 is clamped in the groove 121 .

[0045] From the above description, it can be seen that a groove 121 is provided on the side wall of the holding head. When the clamping jaw mechanism 21 clamps the clamping head 12, the claw piece 212 is stuck in the groove 121, which is more stable.

[0046] Furthermore, a rubber buffer ring 4 is provided between the cabinet door and the cabinet body. From the above description, it can be seen that a rubber buffer ring 4 is provided between the cabinet door and the cabinet body, which plays a buffering effect when closing the door, so that the shielding cabinet door is closed more tightly.

[0047] Furthermore, the end of the clamping head 12 close to the clamping jaw is an arc surface. From the above description, it can be known that the end of the clamping head 12 close to the clamping jaw is an arc surface, and the clamping head 12 is easier to extend into the middle of the clamping jaw surrounded by the claw piece 212.

[0048] Furthermore, a return spring 5 is provided between the cabinet door and the cabinet body.

[0049] From the above description, it can be seen that a reset spring 5 is arranged between the cabinet door and the cabinet body, and when the door is opened, the shielding cabinet door is automatically opened with the help of the force of the reset spring 5. At the same time, the reset spring 5 prevents the cabinet door from closing under the action of non-artificial external force.

[0050] Embodiment 1:

[0051] Application scenario: The existing shielding cabinet lock requires manual operation of the lock rod to slide the lock into the locking groove, which is very cumbersome to use. In addition, the door panels of the shielding cabinet are mostly thin and easily deformed by force, resulting in the cabinet door not being able to close tightly.

[0052] like Figure 1 and Figure 2 The shielding cabinet automatic lock shown has a lock head 1 installed on the cabinet door and a locking part 2 installed on the cabinet body;

[0053] The lock head 1 includes a mounting portion 13, an elastic member 11 and a protruding end, wherein the mounting portion 13 is arranged on the cabinet door, and the clamping head 12 and the mounting portion 13 are connected via the elastic member 11; the locking portion 2 includes a clamping claw mechanism 21, a limiting column 3 and an electrically controlled telescopic component 22; the limiting column 3 is installed on the cabinet body, the limiting column 3 is hollow, and has openings at both ends; the electrically controlled telescopic component 22 is installed in the limiting column 3, and controls the clamping claw mechanism 21 to move horizontally along the axial direction of the limiting column 3, and the clamping claw mechanism 21 can clamp the above-mentioned clamping head 12.

[0054] The clamping head 12 is provided with a groove 121 , and the clamping jaw mechanism 21 is just stuck in the groove 121 when clamping.

[0055] The electric-controlled telescopic assembly 22 is a screw structure, including a motor 221 , a screw 2221 , and a threaded column 2222 .

[0056] The clamping mechanism 21 includes a claw column 211 and a claw piece 212 ; the claw piece 212 is elastic and is circumferentially arranged on the end surface of the claw column 211 ; the outermost side of the claw piece 212 abuts against the inner wall of the limiting column 3 .

[0057] The claw column 211 is provided with a self-locking switch 2111 for controlling the electric telescopic component 22 at one end provided with the claw piece 212 .

[0058] The lock head 1 is provided with a button 14 inserted in the lock head 1 , and the button 14 can control the self-locking switch 2111 .

[0059] A sliding groove 31 is disposed on the limiting column 3 , and a sliding block 213 corresponding to the sliding groove 31 is disposed on the clamping jaw mechanism 21 .

[0060] Use of the above shielding cabinet automatic lock:

[0061] When the shielding cabinet automatic lock staff closes the shielding cabinet, they directly close the door. At this time, the clamping mechanism 21 is outside the limit column 3, and the claw piece 212 is in an open state. As the staff closes the cabinet door, the clamping head 12 of the lock head 1 presses the self-locking switch 2111 on the clamping mechanism 21.

[0062] The self-locking switch 2111 is closed, and the electric control telescopic assembly 22 is controlled to start, and the clamping claw mechanism 21 is controlled to move toward the cabinet in the limiting column 3. During the movement, the claw piece 212 against the inner wall of the limiting column 3 is tightened due to the action of the limiting column 3, thereby grasping the lock head 1, and the claw piece 212 is buckled in the groove 121, and at the same time drives the cabinet door to close.

[0063] After the clamping claw mechanism 21 is received in the limiting column 3, the inner wall of the limiting column 3 constrains the claw piece 212 to prevent the lock head 1 from loosening.

[0064] In the closed state, the elastic member 11 is in a taut state due to the contraction of the electric-controlled telescopic assembly 22. Even if the cabinet door is deformed after long-term use, the cabinet door can be closed tightly.

[0065] When the staff needs to open the shielding cabinet door, they only need to press the end of the button 14 protruding from the mounting portion 13, and the end of the button 14 protruding from the clamping head 12 applies pressure to the self-locking switch 2111, and the self-locking switch 2111 is triggered, and the control motor 221 is started to push the clamping claw mechanism 21 out of the limit column 3. The elastic claw piece 212 is not constrained by the limit column 3, and automatically pops open to release the lock head 1, completing the door opening, which is more convenient.

[0066] The above description is only 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 specification 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. An automatic lock for a shielding cabinet, comprising a lock head mounted on a cabinet door and a locking portion mounted on a cabinet body, characterized in that: The lock head comprises a clamping head, an elastic member and a mounting portion, wherein the mounting portion is arranged on the cabinet door, and the clamping head and the mounting portion are connected via the elastic member; The locking part includes a clamping claw mechanism and an electrically controlled telescopic assembly; the clamping claw mechanism is used to elastically clamp the clamping head, the electrically controlled telescopic assembly is installed on the cabinet, the electrically controlled telescopic assembly includes a telescopic part, and the clamping claw mechanism is coaxially connected to the telescopic part; When the clamping head extends into the interior of the clamping jaw mechanism and is clamped by the clamping jaw mechanism, the electrically controlled telescopic assembly drives the clamping jaw mechanism to move along the axis direction of the locking portion.

2. The automatic lock for the shielding cabinet according to claim 1 is characterized in that: It also includes a limiting column, which is hollow and has openings at both ends. The limiting column is fixed on the cabinet body, and the clamping claw mechanism and the telescopic part are arranged in the limiting column and are coaxial with the limiting column.

3. The automatic lock for the shielding cabinet according to claim 2 is characterized in that: The clamping mechanism comprises a claw column and a claw piece, the claw piece is elastic, and a plurality of the claw pieces are evenly arranged in the circumferential direction of the end face of the claw column; the outermost side of the claw piece abuts against the inner wall of the limiting column.

4. The automatic lock for the shielding cabinet according to claim 3 is characterized in that: The electric-controlled telescopic assembly also includes a self-locking switch for controlling the extension or retraction of the telescopic portion of the electric-controlled telescopic assembly, and the self-locking switch is arranged on the end surface of the claw column facing the claw piece.

5. The automatic lock for the shielding cabinet according to claim 4 is characterized in that: It also includes a button, which passes through the lock head along the lock head axis and is inserted into the lock head. The two ends of the button protrude a clamping head and a mounting portion, and the button is used to abut against the self-locking switch.

6. The automatic lock for the shielding cabinet according to claim 3 is characterized in that: The electric control telescopic assembly includes a motor and a telescopic part driven by the motor, and the telescopic part includes a screw and a threaded column matched with the screw; The threaded column is coaxially connected to one end of the claw column away from the claw piece; The limiting column is provided with a sliding groove, and the claw column is provided with a sliding block corresponding to the sliding groove.

7. The automatic lock for the shielding cabinet according to claim 1 is characterized in that: A groove is arranged on the side wall of the clamping head, and the free end of the claw piece is clamped in the groove when the clamping claw mechanism clamps the clamping head.

8. The automatic lock for the shielding cabinet according to claim 1 is characterized in that: A rubber buffer ring is arranged between the cabinet door and the cabinet body.

9. The automatic lock for the shielding cabinet according to claim 1, characterized in that: One end of the clamping head close to the clamping claw is an arc surface.

10. The automatic lock for the shielding cabinet according to claim 1, characterized in that: A return spring is arranged between the cabinet door and the cabinet body.

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