Lock body applied to metal plate outer protection
By adopting roller connection and clamp structure in the outer protective lock body of sheet metal, the problem of sliding lag and installation accuracy of the lock body is solved, and the smooth movement of the lock core and lock box and fine adjustment of the lock tongue direction is achieved, which improves the The lock body experience and installation convenience.
Patent Information
- Application Number
- CN202420161679.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-23
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-01-23
AI Technical Summary
In the existing sheet metal external protective lock body, the contact between the lock pin body and the lock shell causes stiffness and lag during sliding, and the lock tongue needs to be corresponding to the position when inserting the lock buckle, which is prone to insufficiency.
Roller connection is used instead of sliding connection, so that the lock core and the lock box can be connected rollingly, reduce the friction coefficient, and fine-tuning of the lock tongue and installation accuracy can be reduced through the clamp and U-shaped plate structure.
It realizes smooth movement between the lock core and the lock box and fine adjustment of the lock tongue direction, solves the problems of sliding lag and high installation accuracy, and improves the use experience and installation convenience of the lock body.
Smart Images
Figure CN222276413U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lock bodies, in particular to a lock body used for sheet metal exterior protection. Background Art
[0002] The lock body for sheet metal external protection includes a lock body and a lock catch. The lock body includes a lock box and a lock pin. The lock pin is arranged in the lock box, and the lock box is fixed on the door body of the sheet metal external protection. A lock tongue is arranged at the end of the lock pin, and the lock catch is installed on the door frame. When in use, the lock tongue extends from the lock shell and is inserted into the lock catch to lock the door body to the door frame. Among them, the lock pin and the lock box are connected by sliding. The body of the lock pin is equivalent to a slider. When the lock pin body slides in the lock box, the lock tongue is pushed out of the lock box.
[0003] There are two problems with the existing lock body:
[0004] 1. The lock pin body and the lock shell are in surface contact. When the lock pin body slides in the lock shell, if there is a slight problem in the manufacturing process, it will cause the lock pin body to feel sticky when sliding in the lock shell, and in severe cases, it will cause a jamming phenomenon.
[0005] Second, to ensure that the lock tongue can be accurately inserted into the lock buckle, the position of the lock buckle must correspond to the position of the lock tongue. Since the lock pin and the lock box are in surface contact, the direction of the lock tongue is not easy to adjust when the lock pin slides in the lock box. If there is a slight deviation, the lock tongue will not be inserted into the lock buckle. Therefore, the position accuracy of the lock buckle and the lock box is required to be high during installation. Utility Model Content
[0006] In view of this, the utility model provides a lock body for use in sheet metal exterior protection, in which a lock pin and a lock box are connected in a rolling manner via a plurality of rollers.
[0007] To this end, the present application provides the following technical solutions: a lock body used on sheet metal external protection, comprising a lock box, in which a lock core is connected via a roller; the lock box comprises a lock cover, the open end of the lock cover is connected to a back plate for sealing the lock cover and fixing the lock box on the door body of the sheet metal external protection; the upper end of the lock core is fixedly connected to a lock pin, and a lock tongue is provided at the end of the lock pin, and the lock tongue can be inserted into a lock buckle installed in the sheet metal external protection door frame, and the box body of the lock box is provided with a notch for the lock tongue to enter and exit the box body.
[0008] Furthermore, the lock core also includes an inner shell formed by two U-shaped plates buckled together, and an opening is naturally formed at the end of the two U-shaped plates after the two U-shaped plates are buckled together, and the lock tongue is exposed to the outside of the inner shell after passing through the opening.
[0009] Furthermore, two clamping blocks are symmetrically mounted on the left and right sides of the locking pin body by means of screws, and the locking pin is fixed to the upper part of the inner shell body by means of the clamping blocks.
[0010] Furthermore, the four sides of the inner shell are rollingly connected to the inner wall of the lock box through rollers.
[0011] Furthermore, a long hole is provided on one side of the lock cover, a handle is fixedly connected to the inner shell, and the body of the handle is placed in the long hole and exposed to the outside of the lock box.
[0012] The beneficial effects of the utility model are as follows: the utility model realizes the rolling connection between the lock core and the lock box through the roller, reduces the friction coefficient between the lock box and the lock core, and makes the relative movement between the lock core and the lock box smoother; in addition, there will inevitably be a certain gap between the wheel axle of the roller and the roller body, and the gap enables the travel direction of the lock tongue to be fine-tuned to a certain extent, thereby correspondingly reducing the relative installation accuracy between the lock buckle and the lock box. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0014] Figure 1 It is a schematic diagram of the utility model when the lock tongue is extended.
[0015] Figure 2 It is a schematic diagram of the utility model after the lock tongue is retracted.
[0016] Figure 3 It is an assembly exploded view of the utility model.
[0017] Figure 4 yes Figure 2 Exploded view of the center lock cylinder.
[0018] Figure 5 yes Figure 4 Exploded view of the center locking pin assembly.
[0019] In the figure: 1. lock box; 1.1. back plate; 1.2. lock cover; 1.2.1; notch; 1.2.2. long hole; 2. lock pin; 2.1. lock tongue; 2.2. clamping block; 3. inner shell; 3.1. first U-shaped plate; 3.2. second U-shaped plate; 2-3. lock core; 4. handle; 5. pulley. DETAILED DESCRIPTION
[0020] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0021] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0022] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0023] The utility model provides a lock body used for sheet metal outer protection, such as Figure 1-3 As shown, it includes a lock core 2-3 and a lock box 1, and the lock core is placed in the lock box. The lock box is composed of a lock cover 1.2 and a back plate 1.1 connected together. A built-in cavity for accommodating the lock core is provided in the lock cover. The lock cover and the back plate are fastened to the door body with sheet metal protection with screws after being combined. The back plate plays the role of sealing the lock core in the lock box and fixing the lock body on the door body with sheet metal protection. The lock core is connected to the built-in cavity of the lock box by rolling through a pulley 5. A lock tongue 2.1 is provided at the upper end of the lock core, and the lock tongue can be inserted into the lock buckle provided in the door frame. The specific structure of the lock core is as follows:
[0024] like Figure 4-5 As shown, the lock core includes: a first U-shaped plate 3.1 and a second U-shaped plate 3.2, which are buckled together to form an inner shell 3 with a square tubular structure and openings at both ends. A lock pin 2 is screwed into the inner shell, and a lock tongue is arranged on the upper part of the lock pin (see Figure 5 ), the lock tongue passes through the opening and is exposed to the outside of the inner shell so as to be connected with the lock buckle; two clamping blocks 2.2 are symmetrically installed on the left and right sides of the lock pin body under the lock tongue with screws, and the lock pin is fixed to the upper part of the inner shell after being connected with the clamping blocks by screws.
[0025] like Figure 1-3As shown, a notch 1.2.1 is provided on the cover body at the top of the lock cover, and when the notch and the back plate are connected, a through hole for the lock tongue to pass through is formed; a long hole 1.2.2 is provided on the cover body on the side opposite to the back plate of the lock cover, and a U-shaped handle 4 is fixed on the inner shell body, and the two free ends of the handle are fixed on the outer side of the inner shell body wall, and the body of the handle is placed at the long hole and exposed to the outside of the lock box.
[0026] like Figure 3 As shown, four pulleys are installed on the plate body of the back plate located on one side of the lock box by screws, and the wheels of the pulleys are rollingly connected to the end surface of one end of the inner shell body; four pulleys are installed on the cover body of the lock cover on the left and right sides of the long hole by screws, and the wheels of the pulleys are rollingly connected to the end surface of one end of the inner shell body where the handle is installed; two pulleys are fixed on the left and right sides of the inner shell body by screws, and the wheels of the pulleys are rollingly connected to the inner wall of the lock cover.
[0027] When in use, first use screws to fix the lock box to the door body on the sheet metal outer protection located on the door frame through the mounting holes on the edge of the back plate, and then turn the handle by hand. When the handle slides back and forth in the long hole, it drives the lock core and the lock cover to move relative to each other, so that the lock tongue is exposed from the notch of the lock cover or retracted into the lock box, thereby closing or unlocking the door.
[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.
Claims
1. A lock body used for sheet metal external protection, characterized in that: It includes a lock box, in which a lock core is connected via a roller; the lock box includes a lock cover, the open end of the lock cover is connected to a back plate for sealing the lock cover and fixing the lock box on the sheet metal outer protective upper door body; the upper end of the lock core is fixedly connected to a lock pin, and the end of the lock pin is provided with a lock tongue, and the lock tongue can be inserted into a lock buckle installed in the sheet metal outer protective door frame, and the box body of the lock box is provided with a notch for the lock tongue to enter and exit the box body.
2. A lock body used for sheet metal outer protection according to claim 1, characterized in that: The lock core also includes an inner shell formed by buckling two U-shaped plates. When the two U-shaped plates are buckled, an opening is naturally formed at the end thereof, and the lock tongue is exposed to the outside of the inner shell after passing through the opening.
3. A lock body used for sheet metal outer protection according to claim 1, characterized in that: Two clamping blocks are symmetrically mounted on the left and right sides of the lock pin body by screws, and the lock pin is fixed to the upper part of the inner shell body through the clamping blocks.
4. A lock body used for sheet metal outer protection according to claim 2, characterized in that: The four sides of the inner shell are rollingly connected with the inner wall of the lock box through rollers.
5. A lock body used for sheet metal outer protection according to claim 2, characterized in that: A long hole is arranged on one side of the lock cover, a handle is fixedly connected to the inner shell, and the body of the handle is placed in the long hole and exposed to the outside of the lock box.