Plastic integrally formed lock case

Abstract

This utility model belongs to the field of plastic lock boxes, and in particular, a one-piece molded plastic lock box, which includes a lock box mechanism. The lock box mechanism is mounted on a steel door and connected to a lock cylinder installed in an installation groove on one side of the steel door. The lock box mechanism includes a plastic lock box, a fireproof plate, a threaded rod, a movable plate, a limiting rod, a rubber plate, a guide rod, and a rotating plate. The plastic lock box is installed in the installation groove, and a threaded rod is rotatably connected to the plastic lock box. Both ends of the threaded rod are threadedly connected to movable plates. Multiple limiting rods are slidably connected to two movable plates, and a rubber plate is fixedly connected to one side of each of the two movable plates. This utility model, through the cooperation of its various components, not only achieves the effect of fixing lock cylinders of different specifications, but also, through the action of the plastic lock box and the fireproof plate, prevents rust and corrosion even after long-term use in harsh environments.

Description

Technical Field

[0001] This utility model relates to the field of plastic lock box technology, and in particular to a one-piece molded plastic lock box. Background Technology

[0002] The basic structure of a metal composite door is a panel + an internal honeycomb core. The honeycomb core inside the door leaf cannot provide support for the installation of the lock body. Moreover, the installation of the lock body will cause the honeycomb in this area to be broken, resulting in the door leaf being recessed when the handle through screw is installed. Therefore, it is necessary to provide an additional structure at the location where the lock body is installed to support the installation of the lock body and to increase the strength of the door leaf at this location to prevent recessing.

[0003] In existing technologies, common metal composite doors typically use dedicated lock boxes for lock installation. These dedicated lock boxes are only designed for lock bodies of fixed sizes. When dimensions such as the lock cylinder distance, decorative panel size, and mounting hole distance change, they become unusable, requiring a redesign and remanufacturing of the lock box structure, which significantly limits their application. To address this issue, application number 202122349334.8 discloses a steel lock box for metal composite doors, comprising a lock box body and a lock face fixing telescopic component installed at the opening of the lock box body. The lock box body has mounting brackets on both sides for... The lock box body and the lock face fixing telescopic component are provided with a first through hole for mounting screws and a second through hole for mounting screws. The lock box body and the lock face fixing telescopic component are connected by screws that pass through both the first and second through holes. The lock face fixing telescopic component can be installed at different installation positions through the first and second through holes, which can adjust the distance from the handle mounting point on the lock box to the lock face. This makes it suitable for lock bodies of different sizes and solves the problem in the prior art that the lock box can only be used for a specific size of lock body. When the dimensions such as the lock cylinder distance, decorative panel size, and mounting hole distance change, it cannot be used.

[0004] However, a thorough reading of the aforementioned patent documents reveals the following shortcomings: the high density of the steel lock box leads to an increase in the overall weight of the door. This not only requires more manpower and time during installation, increasing installation costs, but also accelerates the wear and tear of door hinges and other hardware components over long-term use, shortening the door's lifespan.

[0005] In humid environments or environments with a risk of acid and alkali corrosion, steel lock boxes are prone to rust and corrosion. Rusty lock boxes not only have an unsightly appearance, but also affect the normal opening and closing of the lock, reduce security, and have a high cost for repairing or replacing.

[0006] Moreover, existing lock cylinders are generally fixed inside the lock box with screws. When the screw holes on the lock cylinder do not correspond to the screw holes on the lock box, the lock cylinder cannot be fixed, which has certain limitations.

[0007] Therefore, this application proposes a one-piece molded plastic lock box to solve the above problems. Utility Model Content

[0008] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a one-piece molded plastic lock box.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A one-piece molded plastic lock box, including a lock box mechanism;

[0011] The lock box mechanism is mounted on the steel door and connected to the lock cylinder installed in the mounting groove opened on one side of the steel door;

[0012] The lock box mechanism includes a plastic lock box, a fireproof plate, a threaded rod, a movable plate, a limiting rod, a rubber plate, a guide rod, and a rotating plate. The plastic lock box is installed in the mounting slot. A threaded rod is rotatably connected inside the plastic lock box. Movable plates are threaded to both ends of the threaded rod. Multiple limiting rods are slidably connected to two movable plates. A rubber plate is fixedly connected to one side of each of the two movable plates. Each rubber plate is fixedly connected to one end of one of the multiple limiting rods. This lock box mechanism not only secures lock cylinders of different specifications, expanding its applicability, but also, thanks to the plastic lock box and fireproof plate, prevents rust and corrosion even after long-term use in harsh environments, greatly improving the product's reliability and service life.

[0013] Specifically, a fireproof plate is installed on one side of the plastic lock box, and the fireproof plate is fixedly installed in the mounting groove to play a fireproof role.

[0014] Specifically, two fixing plates are fixedly connected to one side of the fireproof board, and screws are threaded to both sides of the plastic lock box. The two screws are threaded to the two fixing plates respectively, for assembling the fireproof board and the plastic lock box.

[0015] Specifically, a guide rod is fixedly installed inside the plastic lock box, and the two movable plates and the rubber plate are slidably connected to the guide rod to play a guiding role.

[0016] Specifically, a rotating plate is fixedly sleeved on the threaded rod to facilitate the rotation of the threaded rod by the operator.

[0017] Specifically, the threads at both ends of the threaded rod are opposite, and because the threads at both ends of the threaded rod are opposite, the two moving plates move in opposite directions.

[0018] Specifically, the two fixed plates are located on both sides of the two movable plates to avoid motion interference.

[0019] Specifically, the steel door, the plastic lock box, the two movable plates, and the two rubber plates are provided with two identical through holes to expose the keyhole and the pivot on the lock cylinder.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] This utility model discloses a one-piece molded plastic lock box. Through the cooperative design between the threaded rod, the moving plate, the limiting rod, and the rubber plate, it can achieve the effect of fixing lock cylinders of different specifications, thereby improving the applicability.

[0022] This utility model discloses a one-piece molded plastic lock box. Through the cooperative design between the plastic lock box and the fireproof plate, it can achieve long-term use in harsh environments without rusting or corrosion, greatly improving the reliability and service life of the product. Attached Figure Description

[0023] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary. The structures, proportions, sizes, etc., shown in this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance, and any modification of the structure, change of the proportional relationship, or adjustment of the size is not permitted.

[0024] Figure 1 This is a three-dimensional structural diagram of a one-piece molded plastic lock box proposed in this utility model;

[0025] Figure 2 This is a partial exploded view of a one-piece molded plastic lock box proposed in this utility model;

[0026] Figure 3 This is a schematic diagram of the lock box mechanism structure of a one-piece molded plastic lock box proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of the internal structure of a one-piece molded plastic lock box according to the present invention.

[0028] Figure 5 This is a structural diagram of the plastic lock box, threaded rod, moving plate, limit rod, rubber plate, guide rod, and rotating plate.

[0029] In the diagram: 1. Steel door; 2. Lock box mechanism; 3. Fixing plate; 4. Screw; 5. Mounting groove; 21. Plastic lock box; 22. Fireproof board; 23. Threaded rod; 24. Moving plate; 25. Limiting rod; 26. Rubber plate; 27. Guide rod; 28. Rotating plate. Detailed Implementation

[0030] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] Reference Figures 1-5 A one-piece molded plastic lock box, including a lock box mechanism 2;

[0032] The lock box mechanism 2 is mounted on the steel door 1 and connected to the lock cylinder installed in the mounting groove 5 opened on one side of the steel door 1;

[0033] The lock box mechanism 2 includes a plastic lock box 21, a fireproof plate 22, a threaded rod 23, a movable plate 24, a limiting rod 25, a rubber plate 26, a guide rod 27, and a rotating plate 28. The plastic lock box 21 is installed in the mounting groove 5. The threaded rod 23 is rotatably connected inside the plastic lock box 21. Both ends of the threaded rod 23 are threadedly connected to the movable plate 24. Multiple limiting rods 25 are slidably connected to the two movable plates 24. A rubber plate 26 is fixedly connected to one side of each of the two movable plates 24. The two rubber plates 26 are respectively fixedly connected to one end of the multiple limiting rods 25. Through the function of the lock box mechanism 2, not only can the lock cylinders of different specifications be fixed, thus improving the applicability, but also, through the function of the plastic lock box 21 and the fireproof plate 22, there will be no rust or corrosion even after long-term use in harsh environments, greatly improving the reliability and service life of the product.

[0034] In this embodiment, a fireproof plate 22 is installed on one side of the plastic lock box 21. The plastic lock box 21 is made of high-strength engineering plastic, such as an alloy material of polycarbonate and acrylonitrile-butadiene-styrene copolymer. This material combines the high strength and high toughness of PC with the good molding and processing properties and chemical corrosion resistance of ABS, and can effectively withstand various external forces during the use of the door lock. The fireproof plate 22 is fixedly installed in the mounting groove 5 to play a fireproof role. The fireproof plate 22 is made of resin.

[0035] In this embodiment, two fixing plates 3 are fixedly connected to one side of the fireproof plate 22, and screws 4 are threadedly connected to both sides of the plastic lock box 21. The two screws 4 are threadedly connected to the two fixing plates 3 respectively, for assembling the fireproof plate 22 and the plastic lock box 21.

[0036] In this embodiment, a guide rod 27 is fixedly installed inside the plastic lock box 21. The two movable plates 24 and the rubber plate 26 are slidably connected to the guide rod 27, which serves as a guide.

[0037] In this embodiment, a rotating plate 28 is fixedly sleeved on the threaded rod 23 to facilitate the rotation of the threaded rod 23 by the operator.

[0038] In this embodiment, the threads at both ends of the threaded rod 23 are opposite. Because the threads at both ends of the threaded rod 23 are opposite, the two moving plates 24 move in opposite directions.

[0039] In this embodiment, the two fixed plates 3 are located on both sides of the two movable plates 24 to avoid motion interference.

[0040] In this embodiment, the steel door 1, the plastic lock box 21, the two movable plates 24 and the two rubber plates 26 are provided with two identical through holes to facilitate the exposure of the keyhole and the pivot on the lock cylinder.

[0041] Working principle: In use, first, install the plastic lock box 21 into the mounting groove 5 on the steel door 1. Then, install the lock cylinder into the plastic lock box 21, aligning the keyhole and pivot on the lock cylinder with the moving plate 24, rubber plate 26, and through hole on the plastic lock box 21, respectively. Next, by rotating the rotating plate 28 on the threaded rod 23, the threaded rod 23 rotates on the plastic lock box 21 and engages in threaded transmission with the two moving plates 24. Because the threads at both ends of the threaded rod 23 are opposite, the two moving plates 24 move in opposite directions, thereby causing the two moving plates 24 to move in opposite directions. 4. The mechanism moves towards the lock cylinder and clamps and fixes it. During this process, one end of multiple limiting rods 25 corresponding to the lock cylinder abuts against the lock cylinder and slides on the two moving plates 24, while the other end abuts against the two rubber plates 26 and deforms them. This causes the multiple limiting rods 25 to form a mold groove that matches the lock cylinder. Through the interaction between the lock cylinder and the multiple limiting rods 25 around it, the lock cylinder is fixed and limited. This allows for the fixing and limiting of lock cylinders of different specifications, greatly improving flexibility and applicability.

[0042] Next, insert the two fixing plates 3 on the fireproof plate 22 into the plastic lock box 21 and fix them with two screws 4. Then, push the plastic lock box 21 and the fireproof plate 22 into the mounting groove 5, so that the key hole and the pivot on the lock cylinder correspond to the two through holes on the steel door 1, and the mounting hole on the fireproof plate 22 corresponds to the threaded groove on the steel door 1. Finally, fix the fireproof plate 22 on the steel door 1 with bolts.

[0043] The technological advancements of this utility model compared to existing technologies are as follows: through the cooperation of various components, it can not only achieve the effect of fixing lock cylinders of different specifications, thus expanding the scope of application, but also, through the action of the plastic lock box 21 and the fireproof plate 22, it will not rust or corrode even after long-term use in harsh environments, greatly improving the reliability and service life of the product. Moreover, the structure is simple and more practical.

Claims

1. A plastic integrally molded lock case characterized by, Including the locking mechanism (2); The lock box mechanism (2) is set on the steel door (1) and connected to the lock cylinder installed in the mounting groove (5) opened on one side of the steel door (1); The locking mechanism (2) includes a plastic locking box (21), a fireproof plate (22), a threaded rod (23), a movable plate (24), a limiting rod (25), a rubber plate (26), a guide rod (27), and a rotating plate (28). The plastic locking box (21) is installed in the mounting groove (5). The threaded rod (23) is rotatably connected inside the plastic locking box (21). The movable plate (24) is threaded to both ends of the threaded rod (23). Multiple limiting rods (25) are slidably connected to the two movable plates (24). A rubber plate (26) is fixedly connected to one side of each of the two movable plates (24). The two rubber plates (26) are respectively fixedly connected to one end of the multiple limiting rods (25).

2. The integrally molded plastic lock case of claim 1, wherein, A fireproof plate (22) is installed on one side of the plastic lock box (21), and the fireproof plate (22) is fixedly installed in the mounting groove (5).

3. A one-piece molded plastic lock box according to claim 2, characterized in that, Two fixing plates (3) are fixedly connected to one side of the fireproof board (22), and screws (4) are threadedly connected to both sides of the plastic lock box (21). The two screws (4) are threadedly connected to the two fixing plates (3) respectively.

4. A one-piece molded plastic lock box according to claim 1, characterized in that, A guide rod (27) is fixedly installed inside the plastic lock box (21), and the two movable plates (24) and the rubber plate (26) are slidably connected to the guide rod (27).

5. A one-piece molded plastic lock box according to claim 1, characterized in that, A rotating plate (28) is fixedly sleeved on the threaded rod (23).

6. A one-piece molded plastic lock box according to claim 1, characterized in that, The threads at both ends of the threaded rod (23) are opposite.

7. A one-piece molded plastic lock box according to claim 3, characterized in that, The two fixed plates (3) are located on both sides of the two movable plates (24).

8. A one-piece molded plastic lock box according to claim 1, characterized in that, The steel door (1), the plastic lock box (21), the two movable plates (24) and the two rubber plates (26) are provided with two identical through holes.

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