Anti-back-locking door lock device for door body of refrigeration house

Abstract

The utility model discloses an anti-back-locking door lock device for a door body of a refrigeration house, which comprises an anti-back-locking component arranged in the door body, and the anti-back-locking component is a push rod component fixed in the door body. The push rod component is installed at the position, right facing a second lock catch of the door lock, of the door body when the door body is closed on a box body of the refrigeration house, and after the push rod component is pressed down, the push rod component enables the second lock catch to be bounced off so as to drive a second clamping spring of the door lock to rotate clockwise till the second clamping spring is clamped with a first clamping groove of a first clamping spring of the door lock, and the door lock is locked. And the lock hook of the door lock is separated from the lock seat, so that the door body can be opened in the door body. The anti-back-locking door lock device provided by the utility model is simple in structure and easy to operate.

Description

Technical Field

[0001] The utility model relates to the technical field related to refrigeration equipment, and in particular to an anti-reverse-locking door lock device for a door body of a cold storage. Background Art

[0002] During use, cold storage doors often frost due to the convection of hot and cold air. Due to the special insulation requirements of cold storage, doors are generally thick. For operators, if they accidentally lock the door when entering or exiting, if other accompanying personnel do not discover it in time, the trapped operator may be in danger of death. To prevent this, the locked-in personnel are required to be able to open the cold storage door from inside. This effectively prevents personnel from being locked inside the cold storage and prevents safety accidents.

[0003] In order to solve the problem that the current cold storage door has poor anti-locking function and is prone to safety accidents, the present utility model is proposed. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides an anti-reverse locking door lock device for the door body of a cold storage. The anti-reverse locking door lock device has a simple structure and is easy to operate. It can improve the overall safety of the unit and effectively prevent staff from being locked into the cold storage, thereby preventing the occurrence of safety accidents.

[0005] The lock mechanism of the present invention is a novel method for preventing the door from being locked and the door from being opened, wherein the lock mechanism is configured to prevent the door from being locked and the door from being opened. When the handle connected to the lock shell is used to close or open the door body, the second retaining spring can be correspondingly clamped with the second retaining groove or the first retaining groove of the first retaining spring, so that the second lock catch is correspondingly popped in or popped out, so that the lock hook is correspondingly clamped or disengaged from the lock seat to close or open the door body accordingly. In which, the anti-reverse locking door lock device also includes an anti-reverse locking component arranged inside the door body, and the anti-reverse locking component is arranged to be a push rod component fixed to the inside of the door body, and the push rod component is installed at a position facing the second lock catch when the door body is closed on the box body. When the push rod component is pressed, the push rod component causes the second lock catch to pop open, thereby driving the second retaining spring to rotate clockwise until the second retaining spring is clamped with the first retaining groove of the first retaining spring, so that the lock hook is disengaged from the lock seat, so that the door body can be opened from the inside of the door body.

[0006] According to the anti-reverse locking door lock device provided by the utility model, a door lock structure in which a simple lock hook and a lock seat are matched to each other is adopted to make the door lock structure simple, and the anti-reverse locking component adopts a push rod component that matches the door lock, so that the door lock can be opened inside the box body of the cold storage without adding other components to the door lock, so that the anti-reverse locking door lock device has a simple structure, stable performance, safety and reliability, and is easy to operate.

[0007] Further preferably, when the door is closed and the handle is buckled, the third engaging groove of the first retaining spring engages with the first lock catch, and the first lock catch drives the first retaining spring to rotate counterclockwise until the second retaining spring engages with the second engaging groove of the first retaining spring, and the second lock catch springs in, locking the lock hook with the lock base. The door lock has a simple closing structure and is easy to operate.

[0008] Further preferably, when the handle is pulled outward, the handle slot on the handle drives the second retaining spring to rotate clockwise until the second retaining spring is locked with the first retaining slot of the first retaining spring, the second lock catch springs open, and the lock hook disengages from the lock seat, thereby opening the door. The door lock has a simple opening structure and is easy to operate.

[0009] Further preferably, the door lock further comprises a locking tongue associated with the door lock key and a stopper provided on the handle. After the door is closed and the handle is released, the key is turned to rotate the locking tongue 90 degrees, causing the locking tongue to engage with the stopper, preventing the handle from being pulled outward to unlock the door. The locking member of the door lock thus employed has a simple structure and is easy to operate.

[0010] According to the above-mentioned anti-reverse locking door lock device of the present invention, after the lock tongue of the external door lock of the cold storage is locked with a key, the retaining spring can be opened by the push rod component fixed to the door body inside, pushing the door body to rotate and drive the lock hook of the door lock to disengage from the lock seat, so that the lock can be unlocked from the inside of the box even in the closed state of the lock tongue.

[0011] By adopting the above technical solution, compared with the existing technology, the anti-reverse locking door lock device provided by the utility model has the advantages of simple structure, stable performance, safety and reliability, and easy operation. It can effectively prevent staff from being locked into the cold storage and prevent the occurrence of safety accidents.

[0012] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. In the drawings:

[0014] Figure 1 A schematic diagram of a cold storage according to an embodiment of the present utility model is shown.

[0015] Figure 2 A schematic diagram of an anti-reverse locking door lock device for a cold storage according to an embodiment of the present utility model is shown.

[0016] Figure 3 A schematic diagram showing the cooperation between a lock hook and a lock seat of an anti-reverse-locking door lock device according to an embodiment of the present utility model is shown.

[0017] Figure 4A schematic diagram showing the structure of an anti-reverse-locking door lock device according to an embodiment of the present utility model is shown.

[0018] Figure 5 A cross-sectional view of an anti-reverse-lock door lock device according to an embodiment of the present invention is shown.

[0019] Figure 6 A schematic diagram of a first retaining spring of an anti-reverse-locking door lock device according to an embodiment of the present utility model is shown.

[0020] Figure 7 A schematic diagram of a handle of an anti-reverse-lock door lock device according to an embodiment of the present utility model is shown.

[0021] Among them: 1-box body; 2-door body; 3-door lock; 4-lock seat; 5-lock hook; 6-door lock base; 7-lock shell; 81-first lock buckle; 82-second lock buckle; 9-lock tongue; 10-push rod component; 111-first retaining spring, 112-second retaining spring; 12-handle; 13-key; 141-first slot; 142-second slot; 143-third slot; 15-block; 16-handle slot; 17-tubular component.

[0022] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0023] In the description of the present invention, it should be noted that the terms "inside" and "outside" etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," "engaged," "contacted," and "associated" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; and direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0025] Figure 1 Schematic diagram of a cold storage according to an embodiment of the present invention is shown. Figure 1As shown, the cold storage includes a box body 1, a door body 2 and a door lock 3. The door body 2 is arranged on one side of the box body 1. As an example, a door body design of a double door can be adopted. The door lock 3 is designed as an anti-reverse locking door lock device, and the anti-reverse locking door lock device includes an anti-reverse locking component arranged inside the door body 2. As an example, Figure 4 As shown, the anti-locking component is designed as a push rod component 10 located inside the door body 2. Figures 2 to 5 The door lock 3 includes upper and lower lock hooks 5, a door lock base 6 and a lock shell 7, and the handle 12 of the door body is connected to the lock shell 7.

[0026] like Figure 4 and Figure 5 As shown, as an example, the door lock 3 includes a first lock catch 81, a second lock catch 82, a lock tongue 9, a first retaining spring 111, a second retaining spring 112, etc. The door lock base 6 is fixed to the door body 2, and the upper and lower lock hooks 5 are connected to the lock housing 7 via a tubular member 17 (e.g., a steel pipe). At the positions corresponding to the door lock 3, lock seats 4 are installed on the upper and lower parts of the cold storage box 1. The lock hooks 5 cooperate with the lock seats 4 to realize the opening and closing of the door body 2. By adjusting the positions of the two lock seats 4 at the upper and lower parts of the box 1, the degree of sealing between the door body 2 and the box 1 can be adjusted.

[0027] refer to Figures 2 to 4 The first lock catch 81 is fixed on the door lock base 6, and the push rod component 10 is fixed inside the door body 2. When the door body 2 is opened, the lock seat 4 and the lock hook 5 are in a non-contact state.

[0028] refer to Figures 4 to 6 The first retaining spring 111, the second retaining spring 112, the lock tongue 9, the first lock catch 81, and the second lock catch 82 are arranged inside the lock housing 7. When the door lock 3 is in the open state, the first lock catch 81 is not in contact with the first retaining spring 111, the second retaining spring 112 is locked in the first retaining groove 141 of the first retaining spring 111, and the second lock catch 82 is in the open state.

[0029] When closing the door 2 and locking the door handle 12, the third retaining groove 143 of the first retaining spring 111 engages with the first lock catch 81, which in turn drives the first retaining spring 111 to rotate counterclockwise until the second retaining spring 112 engages with the second retaining groove 142 of the first retaining spring 111. The second lock catch 82 then springs in, locking the hook 5 and the lock base 4. If the door handle 12 is then pulled outward, the handle retaining groove 16 on the door handle 12 drives the second retaining spring 112 to rotate clockwise, locking the first retaining groove 141 of the first retaining spring 111. The lock catch 2 then springs open, disengaging the lock hook 5 from the lock base 4, unlocking the door lock 3, and allowing the door 2 to be opened.

[0030] refer to Figures 4 to 7After closing the door body 2 and buckling the handle 12 of the door body 2, turning the key 13 drives the lock tongue 9 to rotate 90 degrees. The lock tongue 9 is stuck with the block 15 on the door handle 12. The door handle 12 cannot be pulled outward to open the door lock 3, and the door lock 3 is locked.

[0031] If someone is trapped inside the box body 1 of the cold storage at this time, he can press the push rod component 10 installed inside the door body 2. The push rod component 10 is installed at a position opposite to the second lock buckle 82 when the door body 2 is closed on the box body 1. After pressing the push rod component 10, the second retaining spring 112 can be driven to rotate clockwise and clamped with the first retaining groove 141 of the first retaining spring 111, so that the lock hook 5 is disengaged from the lock seat 4, and the door body 2 can be pushed to rotate to open the door body 2.

[0032] By using the above-mentioned anti-reverse locking door lock device, for example, an anti-reverse locking door lock device including a push rod component 10, after locking the lock tongue 9 with a key 13 outside the cold storage, the second retaining spring 112 can be opened by the push rod component 10 fixed to the door body 2 inside the box body 1, so that the lock hook 5 is disengaged from the lock seat 4, thereby pushing the door body 2 to rotate and driving the lock hook 5 of the door lock 3 to disengage from the lock seat 4, and the lock can be unlocked inside the box body 1 even when the lock tongue 9 is in the closed state.

[0033] The anti-reverse locking door lock device provided by the utility model has a simple structure and is easy to operate. The door lock itself does not require additional components to open the door from the inside of the box. It has stable performance, is safe and reliable, and can effectively prevent staff from being locked into the cold storage, thereby preventing safety accidents.

[0034] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this patent can make slight changes or modifications to equivalent embodiments using the above-mentioned technical content without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

[0035] Although different examples have specific components shown in the drawings, the embodiments of the present disclosure are not limited to these specific combinations. Some of the components or features in one example can be used in combination with features or components in another example.

[0036] Those skilled in the art will appreciate that the foregoing embodiments are illustrative and not restrictive. That is, modifications of the present disclosure will fall within the scope of the claims. Therefore, the following claims should be studied to determine their true scope and content.

Claims

1. An anti-reverse locking door lock device for a cold storage door, the anti-reverse locking door lock device comprising a door lock for closing the door relative to the cold storage box, characterized in that: The door lock comprises a lock hook, a door lock base and a lock shell, the door lock base is fixed to the door body, the lock hook is connected to the lock shell by a tubular member, and a lock seat is provided at the upper and lower parts of the box body of the cold storage at the corresponding positions of the door lock, the lock hook cooperates with the lock seat to realize the opening and closing of the door body, and a first lock catch, a second lock catch, a first clamping spring and a second clamping spring are provided inside the lock shell, the first lock catch is fixed to the door lock base, the first clamping spring includes a first clamping groove and a second clamping groove that can engage with the second clamping spring and a third clamping groove that can engage with the first lock catch, and the second lock catch can engage with the second clamping spring. When the handle of the door body connected to the lock shell is actuated to close or open the door body, the second clamping spring can be clamped with the second clamping groove or the first clamping groove of the first clamping spring accordingly, so that the second lock catch is rebounded in or rebounded accordingly, so that the lock hook is clamped or disengaged from the lock seat accordingly to close or open the door body accordingly. In which, the anti-reverse locking door lock device also includes an anti-reverse locking component arranged inside the door body, and the anti-reverse locking component is arranged to be a push rod component fixed to the inside of the door body. The push rod component is installed at a position facing the second lock buckle when the door body is closed on the box body. When the push rod component is pressed, the push rod component causes the second lock buckle to pop open, thereby driving the second retaining spring to rotate clockwise until the second retaining spring is clamped with the first retaining groove of the first retaining spring, so that the lock hook is disengaged from the lock seat, so that the door body can be opened inside the door body.

2. The anti-reverse-lock door lock device according to claim 1, characterized in that: During the process of closing the door body and buckling the door handle, the third slot of the first retaining spring is clamped with the first lock catch, and the first lock catch drives the first retaining spring to rotate counterclockwise until the second retaining spring is clamped with the second slot of the first retaining spring, and the second lock catch pops in, so that the lock hook is clamped with the lock seat, thereby closing the door body.

3. The anti-reverse locking door lock device according to claim 1 or 2, characterized in that: When the handle is pulled outward, the handle slot on the handle drives the two retaining springs to rotate clockwise until the second retaining spring is clamped with the first slot of the first retaining spring, and the second lock buckle pops open, causing the lock hook to disengage from the lock seat, thereby opening the door body.

4. The anti-reverse locking door lock device according to claim 1 or 2, characterized in that: The door lock also includes a lock tongue associated with the key of the door lock and a block provided on the handle. After closing the door body and buckling the handle, turning the key drives the lock tongue to rotate 90 degrees, and the lock tongue and the block are stuck, so that the handle cannot be pulled outward to open the door lock.

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