Safety lock device of cold storage door

Abstract

The utility model discloses a cold storage door safety lock device which comprises an embedded box and a lock head. A clamping block is mounted in the inserting groove; a plug connector is fixed to one end of the lock head, the plug connector is inserted into the plug connector groove in a matched mode, a limiting groove is formed in the inner wall of the plug connector, one end of the clamping block is clamped with the limiting groove in a matched mode, and a button used for pushing the clamping block to be separated from the limiting groove is installed on the surface of the embedded box; when a person is closed into the refrigeration house, the trapped person presses the button, the pushing clamping block is separated from the limiting groove, at the moment, the plug connector is separated from the interior of the plug connector groove, the lock head is separated from the refrigeration house door, the situation that the person is trapped in the refrigeration house and cannot escape from the refrigeration house to cause life danger can be effectively prevented in the using process, and anti-theft operation in the refrigeration house is achieved; and the safety is higher, the installation is practical, the cost is low, the installation and operation are easy, and the popularization and the use are convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of safety locks, and more specifically, relates to a safety lock device for a cold storage door. Background Art

[0002] At present, a cold storage is a warehouse that uses cooling facilities to create suitable humidity and low temperature conditions. It is also called a refrigerated storage, frozen storage or frozen storage. It can extend the storage period of products to regulate market supply.

[0003] The cold storage door commonly used in the prior art is usually a sliding door, and the outside of the cold storage door is locked with a bolt and a padlock to achieve the purpose of theft prevention. However, once a negligent person is locked in the cold storage, the cold storage door cannot be opened from inside the cold storage, which will cause life danger to the trapped person;

[0004] The above-mentioned existing technical solutions have the following defects: when the trapped persons are locked in the cold storage, it is difficult for outsiders to find the trapped persons due to the excellent airtightness of the cold storage. The trapped persons can only seek help through their own internal facilities. Due to the consideration of installation cost, it is difficult to equip the current cold storage with corresponding rescue facilities, so it poses a great safety hazard to the staff. Utility Model Content

[0005] In order to solve the defects existing in the above-mentioned technology, the utility model provides a cold storage door safety lock device, which aims to improve the potential safety hazard problem of people being locked in the cold storage.

[0006] To achieve the above purpose, the technical solution of the utility model is as follows:

[0007] A safety lock device for a cold storage door, comprising an embedded box and a lock head;

[0008] A plug-in slot is provided at one end of the embedded box, and a card block is installed in the plug-in slot; a plug-in component is fixed to one end of the lock head, and the plug-in component is plugged into the plug-in slot, and a limiting slot is provided on the inner wall of the plug-in component, and one end of the card block is engaged with the limiting slot, and a button for pushing the card block to separate from the limiting slot is installed on the surface of the embedded box.

[0009] In one embodiment of the utility model, a groove is provided on the outer surface of the embedded box, the button is arranged in the groove, a push rod is fixed to the button, the push rod passes through the embedded box, a connecting rod is hinged at one end of the push rod, and one end of the connecting rod is hinged to the block.

[0010] In one embodiment of the utility model, a rotating shaft is inserted into the through hole opened on the surface of the clamping block, one end of the rotating shaft is fixed to the embedded box, a torsion spring is connected between the clamping block and the rotating shaft, and an additional torsion spring is provided to push the clamping block to rotate around the rotating shaft, so that one end of the clamping block is clamped and locked to the limiting groove.

[0011] In one embodiment of the utility model, a reset spring is sleeved on the outer surface of the push rod, a retaining spring is provided at one end of the reset spring, the retaining spring is engaged and fixed with a retaining groove provided on the surface of the push rod, and a reset spring is additionally provided to push the push rod to reset.

[0012] In one embodiment of the utility model, there are two clamping blocks, which are symmetrically arranged. A triangular protrusion is provided at the first end of the clamping block, and the triangular protrusion is engaged with the limiting groove. One end of the connecting rod is connected to the second end of the clamping block through a universal shaft, and the rotating shaft is arranged at a position between the triangular protrusion and the universal shaft.

[0013] In one embodiment of the utility model, a toggle block is slidably arranged in the groove, a limit strip is fixed at one end of the toggle block, the limit strip is cooperatively arranged on the inner surface of the button, the toggle block is connected with a compression spring, one end of the compression spring is in contact with the embedded box; in order to prevent the lock head from popping out due to the accidental pressing of the button, a safety structure is added for this purpose, and the button is locked by the limit strip in contact with the button; when unlocking is required, the toggle block is pushed so that the limit strip leaves the button, and then the button is pressed to unlock.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] When in use, the embedded box is fixedly installed on the cold storage door, so that the button installed on the surface of the embedded box for pushing the card block to separate from the limit groove faces the inside of the cold storage. When closing the door, the cold storage door is pushed to drive the lock head to cooperate and lock with the corresponding lock buckle on the door frame. At this time, the cold storage door is locked. When a person is locked in the cold storage, the trapped person presses the button to push the card block to separate from the limit groove. At this time, the connector is disengaged from the inside of the connector groove, so that the lock head is separated from the cold storage door. When in use, it can effectively prevent people from being trapped in the cold storage and unable to escape, causing life-threatening danger. It not only realizes the anti-theft operation in the cold storage, but also improves the prevention of people from being unable to escape, and has higher safety. The structure is simple, the installation cost is low, it is easy to install and operate, and it is convenient to promote and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the cold storage door safety lock device in the embodiment of the utility model;

[0017] Figure 2 An exploded view provided in an embodiment of the utility model;

[0018] Figure 3 It is a schematic diagram of the cutaway structure in a side view in an embodiment of the utility model;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the connector in the embodiment of the utility model;

[0020] Figure 5 It is a schematic diagram of the structure of the linkage between the button and the card block in the embodiment of the utility model.

[0021] In the figure: 100, embedded box; 101, plug-in slot; 110, clamping block; 111, rotating shaft; 113, torsion spring; 130, button; 131, push rod; 133, connecting rod; 135, return spring; 137, retaining spring; 150, toggle block; 151, limit strip; 153, compression spring; 170, elastic member; 171, limit block; 300, lock; 310, plug-in member; 311, limit slot. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments.

[0023] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0024] In the examples, unless otherwise specified, all the means used are conventional means in the art.

[0025] See also Figure 1-Figure 5 , the present application provides a cold storage door safety lock device, including an embedded box 100 and a lock head 300;

[0026] A plug-in slot 101 is provided at one end of the embedded box 100, and a card block 110 is installed in the plug-in slot 101; a plug-in connector 310 is fixed at one end of the lock head 300, and the plug-in connector 310 is plugged into the plug-in slot 101. A limiting slot 311 is provided on the inner wall of the plug-in connector 310, and one end of the card block 110 is engaged with the limiting slot 311. A button 130 for pushing the card block 110 to separate from the limiting slot 311 is installed on the surface of the embedded box 100.

[0027] Specifically, an elastic member 170 is installed in the plug slot 101, one end of the elastic member 170 is connected to a limit block 171, the limit block 171 is slidably disposed in the plug slot 101, and one end of the plug connector 310 is in contact with the end surface of the limit block 171;

[0028] When the connector 310 is inserted into the connector slot 101, the elastic member 170 is pushed to be compressed to form an elastic deformation. In practical use, when the lock head 300 is hit, an elastic buffer is generated by squeezing the elastic member 170, which plays a buffering role, reduces damage to the lock head 300, and prolongs the service life. At the same time, when the button 130 is pressed to unlock, the reaction force generated by the compressed elastic member 170 pushing the connector 310 facilitates the lock head 300 to quickly disengage from the embedded box 100 and perform the unlocking operation.

[0029] In one embodiment of the utility model, the lock head 300 mentioned above is a first lock buckle; it is used to lock in cooperation with a corresponding second lock buckle on the door frame; and is arranged on the inner surface of the cold storage door on one side of the embedded box 100 where a groove is provided, and a camera is installed on the inner surface of the cold storage door, as well as a touch switch linked to the button 130, which is used to start the camera to take a snapshot while pressing the button 130 to monitor the facial information of the unlocking person.

[0030] In one embodiment of the utility model, a groove is provided on the outer surface of the embedded box 100, and the button 130 is arranged in the groove. The button 130 is fixed with a push rod 131, and the push rod 131 passes through the embedded box 100. One end of the push rod 131 is hinged with a connecting rod 133, and one end of the connecting rod 133 is hinged to the block 110.

[0031] In one embodiment of the utility model, a rotating shaft 111 is inserted into the through hole opened on the surface of the clamping block 110, one end of the rotating shaft 111 is fixed to the embedded box 100, and a torsion spring 113 is connected between the clamping block 110 and the rotating shaft 111. The additional torsion spring 113 is used to push the clamping block 110 to rotate around the rotating shaft 111, so that one end of the clamping block 110 is clamped and locked to the limiting groove 311.

[0032] In one embodiment of the utility model, a return spring 135 is sleeved on the outer surface of the push rod 131, and a retaining spring 137 is provided at one end of the return spring 135. The retaining spring 137 is engaged and fixed with a retaining groove provided on the surface of the push rod 131. The return spring 135 is additionally provided to push the push rod 131 to reset.

[0033] In one embodiment of the utility model, two clamping blocks 110 are provided, and the two clamping blocks 110 are symmetrically arranged. A triangular protrusion is opened at the first end of the clamping block 110, and the triangular protrusion is engaged with the limiting groove 311. One end of the connecting rod 133 is connected to the second end of the clamping block 110 through a universal shaft, and the rotating shaft 111 is arranged at a position between the triangular protrusion and the universal shaft.

[0034] See also Figure 2-Figure 5In one embodiment of the utility model, a toggle block 150 is slidably arranged in the groove, and a limit strip 151 is fixed at one end of the toggle block 150, and the limit strip 151 is cooperatively arranged on the inner surface of the button 130, and the toggle block 150 is connected with a compression spring 153, and one end of the compression spring 153 is in conflict with the embedded box 100; in order to prevent the lock head 300 from popping out due to the accidental pressing of the button 130, a safety structure is added for this purpose, and the limit strip 151 is in conflict with the button 130 to lock; when unlocking is required, the toggle block 150 is pushed to make the limit strip 151 leave the button 130, and then the button 130 is pressed to perform the unlocking operation.

[0035] Working principle: When in use, the embedded box 100 is fixedly installed on the cold storage door, so that the button 130 installed on the surface of the embedded box 100 for pushing the card block 110 to separate from the limiting groove 311 faces the inside of the cold storage. When closing the door, the cold storage door is pushed to drive the lock head 300 to cooperate and lock with the corresponding lock buckle on the door frame. At this time, the cold storage door is locked. When a person is locked in the cold storage, the trapped person presses the button 130 to push the card block 110 to separate from the limiting groove 311. At this time, the connector 310 disengages from the inside of the plug-in slot 101, so that the lock head 300 is separated from the cold storage door. When in use, it can effectively prevent people from being trapped in the cold storage and unable to escape, causing life-threatening danger. It not only realizes the anti-theft operation in the cold storage, but also improves the prevention of people from being unable to escape, and has higher safety. The structure is simple, the installation is practical and the cost is low. It is easy to install and operate, and is convenient for promotion and use.

[0036] The above-mentioned embodiments only express several implementation methods of the utility model. The descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent.

[0037] It should be pointed out that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the utility model, and these are all within the scope of protection of the utility model. Therefore, the scope of protection of the utility model patent shall be based on the attached claims.

Claims

1. A cold storage door safety lock device, characterized in that: include An embedded box (100), wherein one end of the embedded box (100) is provided with an inserting slot (101), and a card block (110) is installed in the inserting slot (101); A lock head (300), one end of which is fixed with a plug-in connector (310), the plug-in connector (310) being plugged into the plug-in slot (101), the inner wall of the plug-in connector (310) being provided with a limiting slot (311), one end of the clamping block (110) being plugged into the limiting slot (311), and a button (130) for pushing the clamping block (110) to separate from the limiting slot (311) being installed on the surface of the embedded box (100).

2. The cold storage door safety lock device according to claim 1, characterized in that: The outer surface of the embedded box (100) is provided with a groove, the button (130) is arranged in the groove, the button (130) is fixed with a push rod (131), the push rod (131) passes through the embedded box (100), one end of the push rod (131) is hinged with a connecting rod (133), and one end of the connecting rod (133) is hinged with the block (110).

3. The cold storage door safety lock device according to claim 2, characterized in that: A rotating shaft (111) is inserted into a through hole formed on the surface of the clamping block (110), one end of the rotating shaft (111) is fixed to the embedded box (100), and a torsion spring (113) is connected between the clamping block (110) and the rotating shaft (111).

4. The cold storage door safety lock device according to claim 3, characterized in that: A return spring (135) is sleeved on the outer surface of the push rod (131), and a retaining spring (137) is provided at one end of the return spring (135). The retaining spring (137) is engaged and fixed with a retaining groove provided on the surface of the push rod (131).

5. The cold storage door safety lock device according to claim 4, characterized in that: Two clamping blocks (110) are provided, and the two clamping blocks (110) are symmetrically arranged. A triangular protrusion is provided at the first end of the clamping block (110), and the triangular protrusion is engaged with the limiting groove (311). One end of the connecting rod (133) is connected to the second end of the clamping block (110) via a universal shaft, and the rotating shaft (111) is arranged at a position between the triangular protrusion and the universal shaft.

6. The cold storage door safety lock device according to claim 5, characterized in that: A toggle block (150) is slidably arranged in the groove, a limit strip (151) is fixed to one end of the toggle block (150), the limit strip (151) is cooperatively arranged on the inner surface of the button (130), the toggle block (150) is connected to a compression spring (153), one end of the compression spring (153) contacts the embedded box (100).

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