A walk-in cooler security lock device

Abstract

This invention discloses a cold storage safety lock device, belonging to the field of safety lock technology. It includes a first housing and a second housing. A guide mounting bracket is installed inside the first housing, and an extension rod is movably mounted inside the guide mounting bracket. One end of the extension rod is connected to a ratchet wrench that passes through the guide mounting bracket and the first housing. The other end of the extension rod is threadedly connected to a first connector located on the outside of the first housing. A first clamping mechanism and a second clamping mechanism, which cooperate with the first connector, are rotatably mounted inside the second housing. A limiting tube is provided between the ends of the first clamping mechanism and the second clamping mechanism located on the outside of the second housing. The first clamping mechanism, the second clamping mechanism, and the limiting tube are interconnected by a padlock. This invention effectively prevents personnel from becoming trapped inside the cold storage and endangering their lives. It achieves both anti-theft operation within the cold storage and improves the safety of preventing personnel from becoming trapped.

Description

Technical Field

[0001] This invention relates to a safety lock, and more particularly to a cold storage safety lock device, belonging to the field of safety lock technology. Background Technology

[0002] Cold storage facilities are warehouses that utilize cooling equipment to create suitable humidity and low temperature conditions. Also known as cold storage warehouses, frozen warehouses, or frozen storage facilities, they extend the shelf life of products and regulate market supply. Currently, commonly used cold storage doors are sliding doors, secured by bolts and padlocks on the outside for theft prevention. However, if someone is accidentally locked inside the cold storage and cannot open the door from the inside, it poses a life-threatening danger. This invention proposes a new solution to address these problems. Summary of the Invention

[0003] The main objective of this invention is to provide a cold storage safety lock device to address the shortcomings of existing technologies.

[0004] The objective of this invention can be achieved by adopting the following technical solution:

[0005] A cold storage safety lock device includes a first housing and a second housing. A guide mounting bracket is installed inside the first housing. An extension rod is movably installed inside the guide mounting bracket. One end of the extension rod is connected to a ratchet wrench that passes through the guide mounting bracket and the first housing. The other end of the extension rod is threadedly connected to a first connector located outside the first housing. A first clamping mechanism and a second clamping mechanism that cooperate with the first connector are rotatably installed inside the second housing. A limiting tube is provided between the ends of the first clamping mechanism and the second clamping mechanism located outside the second housing. The first clamping mechanism, the second clamping mechanism, and the limiting tube are interconnected by a padlock.

[0006] Preferably, the back of the first housing has a first opening that cooperates with the ratchet wrench.

[0007] Preferably, the guide mounting bracket includes a guide tube fixed inside the first housing, and one end of the guide tube is fixedly mounted with a mounting tube that cooperates with the extension rod.

[0008] Preferably, the guide tube has a second opening that cooperates with the first opening.

[0009] Preferably, both the first clamping mechanism and the second clamping mechanism include a mounting rod that is rotatably mounted inside the second housing via a rotating shaft.

[0010] Preferably, the mounting rod is symmetrically equipped with a protrusion and a spring at one end inside the second housing, and the top end of the spring is connected to the inner wall of the second housing.

[0011] Preferably, the first connector includes a locking block that cooperates with the first clamping mechanism and the second clamping mechanism, and the locking block has two symmetrically formed grooves that cooperate with the protrusion.

[0012] Preferably, one end of the card block is hemispherical, and the other end of the card block has a threaded groove.

[0013] Preferably, the extension rod includes a rod body, one end of which is connected to a connecting block that cooperates with the ratchet wrench.

[0014] Preferably, a limiting piece is installed on the outer side of the rod, and a threaded head for connecting the first connector is fixedly installed at the other end of the rod.

[0015] The beneficial technical effects of the present invention are as follows: When using the cold storage safety lock device of the present invention, the first housing is installed on the cold storage door with the ratchet wrench facing inwards. When closing the door, pushing the first housing causes the ratchet wrench to enter the interior of the second housing. At this time, the first clamping mechanism and the second clamping mechanism will lock the first connector. Then, inserting the limiting tube between the first clamping mechanism and the second clamping mechanism allows the padlock to pass through the limiting tube, the first clamping mechanism, and the second clamping mechanism to fix it. When a person is trapped inside the cold storage, rotating the ratchet wrench separates the threaded extension rod from the first connector, allowing the cold storage door to be opened. This effectively prevents people from being trapped inside the cold storage and endangering their lives. It achieves anti-theft operation inside the cold storage and improves the safety of preventing people from being trapped. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the cold storage safety lock device according to the present invention;

[0017] Figure 2 This is a cross-sectional view of a preferred embodiment of the cold storage safety lock device according to the present invention;

[0018] Figure 3 This is a schematic diagram of the rear structure of the second housing of a preferred embodiment of the cold storage safety lock device according to the present invention;

[0019] Figure 4 This is a schematic diagram of the rod structure of a preferred embodiment of the cold storage safety lock device according to the present invention;

[0020] Figure 5 This is a schematic diagram of the guide tube structure of a preferred embodiment of the cold storage safety lock device according to the present invention;

[0021] Figure 6 This is a schematic diagram of the mounting rod structure of a preferred embodiment of the cold storage safety lock device according to the present invention.

[0022] In the diagram: 1. First housing; 2. Second housing; 3. Padlock; 4. Limiting tube; 5. First clamping mechanism; 6. Second clamping mechanism; 7. First connector; 8. Extension rod; 9. Ratchet wrench; 10. First opening; 11. Guide mounting bracket; 111. Mounting tube; 112. Guide tube; 113. Second opening; 501. Mounting rod; 502. Protrusion; 503. Spring; 504. Rotating shaft; 701. Locking block; 702. Groove; 703. Threaded groove; 801. Rod body; 802. Limiting piece; 803. Threaded head; 804. Connecting block. Detailed Implementation

[0023] To enable those skilled in the art to understand the technical solution of the present invention more clearly, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0024] like Figures 1-6 As shown, the cold storage safety lock device provided in this embodiment includes a first housing 1 and a second housing 2. A guide mounting bracket 11 is installed inside the first housing 1. An extension rod 8 is movably installed inside the guide mounting bracket 11. One end of the extension rod 8 is connected to a ratchet wrench 9 that passes through the guide mounting bracket 11 and the first housing 1. The other end of the extension rod 8 is threadedly connected to a first connector 7 located on the outside of the first housing 1. A first clamping mechanism 5 and a second clamping mechanism 6 that cooperate with the first connector 7 are rotatably installed inside the second housing 2. A limiting tube 4 is provided between the ends of the first clamping mechanism 5 and the second clamping mechanism 6 located on the outside of the second housing 2. The first clamping mechanism 5, the second clamping mechanism 6 and the limiting tube 4 are interconnected by a padlock 3. In use, the first housing 1 is installed on the cold storage door with the ratchet wrench 9 facing inwards. When closing the door, push the first housing 1 to allow the ratchet wrench 9 to enter the second housing 2. At this time, the first clamping mechanism 5 and the second clamping mechanism 6 will lock the first connector 7. Then, insert the limiting tube 4 between the first clamping mechanism 5 and the second clamping mechanism 6 to fix it through the padlock 3. When someone is trapped inside the cold storage, turn the ratchet wrench 9 to separate the threaded extension rod 8 from the first connector 7, and the cold storage door can be opened. In use, it can effectively prevent people from being trapped inside the cold storage and causing life-threatening situations. It not only realizes anti-theft operation inside the cold storage, but also improves the prevention of people being unable to escape, making it safer.

[0025] The back of the first housing 1 has a first opening 10 that mates with the ratchet wrench 9. The guide mounting bracket 11 includes a guide tube 112 fixed inside the first housing 1. One end of the guide tube 112 is fixedly mounted with a mounting tube 111 that mates with the extension rod 8. The guide tube 112 has a second opening 113 that mates with the first opening 10. The first opening 10 and the second opening 113 facilitate the rotation of the ratchet wrench 9, the guide tube 112 facilitates the guidance of the extension rod 8, and the mounting tube 111 facilitates the installation of the extension rod 8.

[0026] Both the first clamping mechanism 5 and the second clamping mechanism 6 include a mounting rod 501 rotatably mounted inside the second housing 2 via a rotating shaft 504. A protrusion 502 and a spring 503 are symmetrically mounted on one end of the mounting rod 501 inside the second housing 2. The top end of the spring 503 is connected to the inner wall of the second housing 2. When the rounded head at one end of the locking block 701 pushes the protrusion 502, the protrusion 502 is displaced, causing the mounting rod 501 to rotate and simultaneously compressing the spring 503. When the protrusion 502 moves to the position of the groove 702, the spring 503 compresses the protrusion 502 and engages it inside the groove 702.

[0027] The first connector 7 includes a locking block 701 that cooperates with the first clamping mechanism 5 and the second clamping mechanism 6. The locking block 701 has two symmetrically formed grooves 702 that cooperate with the protrusions 502. One end of the locking block 701 is hemispherical, and the other end has a threaded groove 703. The threaded groove 703 facilitates connection with the threaded head 803, and the grooves 702 facilitate cooperation with the protrusions 502.

[0028] The extension rod 8 includes a rod body 801. One end of the rod body 801 is connected to a connecting block 804 that cooperates with a ratchet wrench 9. A limiting piece 802 is installed on the outer side of the rod body 801. The other end of the rod body 801 is fixedly installed with a threaded head 803 for connecting to the first connector 7. In use, the rod body 801 is rotated by the ratchet wrench 9 and the connecting block 804. As the rod body 801 rotates, the threaded head 803 gradually disengages from the threaded groove 703. During normal use, the limiting piece 802 can prevent the rod body 801 from disengaging from the inside of the first housing 1.

[0029] In this embodiment, as Figures 1-6 As shown in the figure, the working process of the cold storage safety lock device provided in this embodiment is as follows:

[0030] Step 1: When using, install the first housing 1 on the cold storage door and the second housing 2 on the cold storage wall or another door, with the ratchet wrench 9 and the first opening 10 facing the inside of the cold storage. When closing the door, push the first housing 1 to allow the ratchet wrench 9 to enter the interior of the second housing 2, causing the first clamping mechanism 5 and the second clamping mechanism 6 to lock the first connector 7. Then, insert the limiting tube 4 between the first clamping mechanism 5 and the second clamping mechanism 6 to fix it in place by passing the padlock 3 through the limiting tube 4, the first clamping mechanism 5, and the second clamping mechanism 6.

[0031] Step 2: As the locking block 701 gradually extends into the second housing 2, the round head at one end of the locking block 701 will push open the protrusion 502. At this time, the protrusion 502 will be displaced, causing the mounting rod 501 to rotate and simultaneously compressing the spring 503. When the protrusion 502 moves to the position of the groove 702, the spring 503 will compress the protrusion 502 into the interior of the groove 702, thereby completing the clamping and fixing of the locking block 701.

[0032] Step 3: When personnel are locked inside the cold storage, turn the ratchet wrench 9 to separate the threaded extension rod 8 and the first connector 7. When in use, rotate the rod 801 through the ratchet wrench 9 and the connecting block 804. As the rod 801 rotates, the threaded head 803 will gradually come out of the thread groove 703. During the rotation, the first clamping mechanism 5 and the second clamping mechanism 6 will lock the first connector 7 to prevent the first connector 7 and the extension rod 8 from rotating at the same time. When you need to open the door from the outside of the cold storage, first open the padlock 3, and then remove the limiting tube 4 that is pressed between the first clamping mechanism 5 and the second clamping mechanism 6. At this time, press the end of the first clamping mechanism 5 and the second clamping mechanism 6 located on the outside of the second housing 2 at the same time, and the protrusion 502 on the other end will come out from the groove 702, and the cold storage door can be opened.

[0033] The above description is merely a further embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed in the present invention, based on the technical solution and concept of the present invention, shall fall within the scope of protection of the present invention.

Claims

1. A walk-in cooler security lock device, characterized by, The utility model provides a kind of double-connection type extension rod, including first shell (1) and second shell (2), the inside of first shell (1) is equipped with guide mounting bracket (11), the inside of guide mounting bracket (11) is movably equipped with extension rod (8), one end of extension rod (8) is connected with ratchet wrench (9) that passes through guide mounting bracket (11) and first shell (1), the other end of extension rod (8) is threadedly connected with first connecting head (7) outside first shell (1), the inside of second shell (2) is rotatably equipped with first clamping mechanism (5) and second clamping mechanism (6) with first connecting head (7) interoperate, the first clamping mechanism (5) and the second clamping mechanism (6) are located between the one end of second shell (2) outside and are equipped with limit tube (4), the first clamping mechanism (5), the second clamping mechanism (6) and the limit tube (4) are connected with padlock (3) each other, the limit tube (4) is inserted between the first clamping mechanism (5) and the second clamping mechanism (6), the first clamping mechanism (5), the second clamping mechanism (6) and the limit tube (4) are connected with padlock (3) each other, the back of first shell (1) is equipped with first opening (10) with ratchet wrench (9) interoperate; The first connecting head (7) includes a clamping block (701) that cooperates with the first clamping mechanism (5) and the second clamping mechanism (6), and the clamping block (701) is symmetrically provided with two recesses (702) that cooperate with the protrusions (502) symmetrically installed on the one end of the mounting rods (501) in the first clamping mechanism (5) and the second clamping mechanism (6) inside the second shell (2).

2. A walk-in cooler security lock as defined in claim 1, wherein, The guide mounting bracket (11) includes a guide tube (112) fixedly installed in the first shell (1), and the guide tube (112) is fixedly installed with a mounting tube (111) that cooperates with the extension rod (8) on one end.

3. A walk-in cooler security lock as defined in claim 2, wherein, The guide tube (112) is provided with a second opening (113) that cooperates with the first opening (10).

4. A walk-in cooler security lock as defined in claim 1, wherein, The first clamping mechanism (5) and the second clamping mechanism (6) each include a mounting rod (501) rotatably installed in the second shell (2) by a rotating shaft (504).

5. A cold storage safety lock device as described in claim 4, characterized in that, The mounting rod (501) is symmetrically provided with a protrusion (502) and a spring (503) on one end inside the second shell (2), and the top end of the spring (503) is connected with the inner wall of the second shell (2).

6. A walk-in cooler security lock as defined in claim 1, wherein, One end of the clamping block (701) is hemispherical, and the other end of the clamping block (701) is provided with a threaded groove (703).

7. A walk-in cooler security lock as defined in claim 1, wherein, The extension rod (8) includes a rod body (801), and the rod body (801) is connected with a connecting block (804) that cooperates with the ratchet wrench (9) on one end.

8. A freezer security lock as claimed in claim 7, wherein the locking mechanism comprises a locking pin which is received in a slot in the housing. The outer side of the rod body (801) is provided with a limiting sheet (802), and the other end of the rod body (801) is fixedly installed with a threaded head (803) for connecting the first connecting head (7).

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