Acid and alkali resistant door lock device

Abstract

The utility model relates to an acid and alkali resistant door lock device. Comprising a lock rod, a deflector rod device, a packaging box and a handle, the lock rod is of a telescopic structure, is made of acid and alkali resistant engineering plastics and is matched with a clamping groove in the door body in a clamping mode. The rod shifting device is arranged in the packaging box, is connected with the lock rod through a mechanical linkage mechanism and is used for controlling the telescopic action of the lock rod; the packaging box adopts an integrally-formed corrosion-resistant shell and wraps the lock rod and a transmission part of the rod shifting device. And the handle is connected with the deflector rod device through a rotating shaft, and anti-skid lines are arranged on the surface. The technical problems that in the prior art, a common door lock is prone to being corroded and damaged, equipment cannot be normally opened and closed and cannot be safely protected, and a magnet and a door stopper installed on a door plate in the prior art need to be fixed through metal screws and are corroded and damaged in the acid-base environment are solved.

Description

Technical Field

[0001] This utility model relates to the field of door lock devices, and in particular to an acid and alkali resistant door lock device. Background Technology

[0002] In chemical production, equipment is often exposed to corrosive environments such as strong acids and alkalis. Ordinary door locks are easily corroded and damaged, causing the equipment to fail to open and close properly and to provide safety protection. In the past, magnetic door locks and door stops installed on door panels required metal screws for fixing, which were corroded and damaged in acidic and alkaline environments. Currently, there is a lack of door lock products on the market that can meet the needs of such special environments. Utility Model Content

[0003] This application provides an acid and alkali resistant door lock device, which solves the technical problem that ordinary door locks in the prior art are easily corroded and damaged, causing the equipment to fail to open and close properly and provide security protection. In the past, magnetic door catches and door stops installed on the door panel required metal screws for fixing, which were corroded and damaged in acid and alkali environments.

[0004] The technical solution adopted in the embodiments of this application is as follows:

[0005] An acid and alkali resistant door lock device includes a lock rod, a lever mechanism, a casing, and a handle. The lock rod is a telescopic structure made of acid and alkali resistant engineering plastic and engages with a slot on the door body via a snap-fit ​​mechanism. The lever mechanism is located inside the casing and is connected to the lock rod via a mechanical linkage mechanism to control the telescopic movement of the lock rod. The casing is a one-piece molded corrosion-resistant shell that covers the lock rod and the transmission components of the lever mechanism. The handle is connected to the lever mechanism via a pivot and has anti-slip textures on its surface.

[0006] A further technical solution is that the locking rod, lever, encapsulation box, and handle are made of polypropylene (PP) or polyvinyl chloride (PVC).

[0007] A further technical solution is as follows: the end of the locking rod is provided with a tapered guide, and a rubber buffer pad is correspondingly provided in the slot.

[0008] A further technical solution is that the handle adopts a hollow injection molding structure.

[0009] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0010] 1. Due to the inclusion of a locking rod, lever, sealing box, and handle, this device, through a combination of PP / PVC materials and a fully enclosed structure, allows the door lock to maintain a lifespan of over 5000 opening and closing cycles in corrosive environments with pH 1-14, extending the maintenance cycle by 5-8 times compared to metal locks. The modular design of the locking rod allows for quick replacement of different lengths, achieving a compatibility rate of over 95%. The curved design of the handle reduces operating force, resulting in 40% energy savings compared to traditional structures. Simulated tests show that in a 50℃ acidic steam environment, the wear of key transmission components is less than 0.1mm / year. The overall solution significantly reduces the comprehensive cost compared to stainless steel door locks. Therefore, this acid and alkali resistant door lock solves the problem of easy corrosion and damage to door locks in chemical equipment under strong acid and alkali environments, improving the safety and reliability of the equipment, reducing maintenance and replacement costs. The locking rod can be flexibly processed and manufactured according to different door heights to meet different door panel design requirements, demonstrating broad application prospects. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of the connection between an acid and alkali resistant door lock device and the door body in an embodiment of this utility model.

[0012] Figure 2 This is a front view of an acid and alkali resistant door lock device according to an embodiment of the present invention.

[0013] Figure 3 This is a right view of an acid and alkali resistant door lock device according to an embodiment of the present invention.

[0014] In the picture: 1. Locking bar; 2. Lever; 3. Encapsulation box; 4. Handle. Detailed Implementation

[0015] This application provides an acid and alkali resistant door lock device, which solves the technical problem that ordinary door locks in the prior art are easily corroded and damaged, causing the equipment to fail to open and close properly and provide security protection. In the past, magnetic door catches and door stops installed on the door panel required metal screws for fixing, which were corroded and damaged in acid and alkali environments.

[0016] The technical solution in this application is to solve the above problems, and the overall approach is as follows:

[0017] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0018] An acid and alkali resistant door lock device, such as Figure 1 , Figure 2 and Figure 3As shown, the device includes a locking rod 1, a lever 2, a housing 3, and a handle 4. The locking rod 1 is a telescopic structure made of acid and alkali resistant engineering plastic and engages with a slot on the door via a snap-fit ​​mechanism. The lever 2 is located inside the housing 3 and is connected to the locking rod 1 via a mechanical linkage mechanism, used to control the extension and retraction of the locking rod 1. The housing 3 is a one-piece molded corrosion-resistant shell that covers the transmission components of the locking rod 1 and the lever 2. The handle 4 is connected to the lever 2 via a pivot and has an anti-slip texture on its surface.

[0019] The locking bar 1, lever 2, encapsulation box 3, and handle 4 are made of polypropylene (PP) or polyvinyl chloride (PVC).

[0020] The end of the locking rod 1 is provided with a tapered guide, and a rubber buffer pad is correspondingly provided in the slot.

[0021] Handle 4 adopts a hollow injection molding structure.

[0022] This embodiment of the acid and alkali resistant door lock device includes: a PP material lock rod 1 connected to a PVC lever 2 via a slide rail; and a packaged box 3 made of PP integral injection molding with an internal waterproof sealing ring. During installation, the packaged box 3 is glued to the inside of the door panel 8, and the pivot of the handle 4 passes through the door panel and is linked to the lever 2. When the operator presses down the handle 4, the lever 2 causes the lock rod 1 to retract and disengage from the slot, at which point the door panel can be opened. In practical applications, this device is installed on the observation door of a chemical reactor. Testing showed no corrosion or deformation after 6 months of continuous use in a 40% sulfuric acid environment. The extension stroke of the lock rod 1 can reach 20mm, adapting to door structures of different thicknesses.

[0023] Thanks to the design of the lock rod 1, lever 2, encapsulation box 3, and handle 4, this device, through a combination of PP / PVC materials and a fully enclosed structure, allows the door lock to maintain a lifespan of over 5000 opening and closing cycles in corrosive environments with pH 1-14, extending the maintenance cycle by 5-8 times compared to metal locks. The modular design of the lock rod 1 allows for quick replacement of different lengths, achieving a compatibility rate of over 95%. The curvature design of the handle 4 reduces operating force, resulting in 40% energy savings compared to traditional structures. Simulated tests show that in a 50℃ acidic steam environment, the wear of the key transmission component 2 is less than 0.1mm / year. The overall solution significantly reduces the comprehensive cost compared to stainless steel door locks. Therefore, this acid and alkali resistant door lock solves the problem of easy corrosion and damage to door locks in chemical equipment under strong acid and alkali environments, improving the safety and reliability of the equipment, reducing maintenance and replacement costs. The lock rod can be flexibly manufactured according to different door heights to meet different door panel design requirements, demonstrating broad application prospects.

[0024] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0025] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An acid and alkali resistant door lock device, characterized in that, It includes a locking rod (1), a lever (2), a sealing box (3), and a handle (4); the locking rod (1) is a telescopic structure made of acid and alkali resistant engineering plastic, and is engaged with the slot on the door body by a snap-fit ​​method; the lever (2) is located inside the sealing box (3) and is connected to the locking rod (1) through a mechanical linkage mechanism, and is used to control the telescopic movement of the locking rod (1); the sealing box (3) is an integrally molded corrosion resistant shell that covers the transmission components of the locking rod (1) and the lever (2); the handle (4) is connected to the lever (2) through a rotating shaft and has anti-slip texture on its surface.

2. The acid and alkali resistant door lock device as described in claim 1, characterized in that, The locking bar (1), lever (2), encapsulation box (3) and handle (4) are made of polypropylene (PP) or polyvinyl chloride (PVC).

3. The acid and alkali resistant door lock device as described in claim 1, characterized in that, The locking rod (1) has a tapered guide at its end, and a rubber buffer pad is correspondingly provided in the slot.

4. The acid and alkali resistant door lock device as described in claim 1, characterized in that, The handle (4) adopts a hollow injection molding structure.

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