A double-point industrial box door lock with a padlock hole
Patent Information
- Application Number
- CN202522284926.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-29
- Publication Date
- 2026-09-11
- Estimated Expiration
- 2035-10-29
AI Technical Summary
[0005]本申请所要解决问题是:长时间使用齿轮,齿条磨损较为严重,容易产生滑齿,且难以判定是否完全固定,没有感应结构,当安装固定长度过长,槽口过大时,难以有效固定的问题
1、通过拨块带动支撑轴转动,经异形转块联动连接杆一、连接杆二旋转,配合限位块限制卡柱运动方向使卡柱实现滑动运动,同时弹簧提供压力反馈,从而实现可按需灵活固定安装,兼顾快速安装的便捷性与两点固定的结构稳定性,有效增强整体牢固性与安全防护性能;
Smart Images

Figure CN224742191U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lock technology, specifically to a double-point industrial box door lock with padlock holes. Background Technology
[0002] In the field of industrial equipment, the enclosure serves as the core carrier for precision instruments, key components, and important materials. The performance of its door lock device directly affects the operational safety of the equipment and the reliability of material storage. Industrial enclosure door locks must simultaneously meet the requirements of structural robustness and ease of operation. Among them, the dual-point locking structure has a significant advantage in improving the overall resistance to deformation because it can distribute external loads through two points of force. The addition of padlock holes can further enhance the level of security protection and meet the needs of multiple locking protection in industrial environments.
[0003] A search revealed a Chinese patent (CN221346640U) disclosing a cabinet door lock mechanism. The mechanism includes a mounting frame with mounting plates at both its left and right ends. A mounting housing is installed between the left and right inner walls of the mounting frame. A cover plate is installed at the front end of the mounting housing, and a locking device is installed between the left and right inner walls of the mounting housing. A handle is installed at the front end of the locking device. This utility model describes a recessed, outward-opening two-point lock. The number of rotations of the drive gear can be controlled by rotating the handle, thus adjusting the extension distance of the pin. This not only improves the adaptability of the device but also facilitates installation and disassembly by attaching the handle to the connecting post via a snap-fit mechanism. The cover plate can be removed by loosening the mounting screws, allowing for internal maintenance of the two-point lock. The mounting frame, mounted on the outer surface of the mounting housing, protects the two-point lock from external scratches.
[0004] The aforementioned patent proposes a method where a handle is used to mount a connecting column on the locking device via a plug. Rotating the handle rotates the connecting column and the drive gear, which in turn rotates the sliding seats on both sides. The two sliding seats then slide in opposite directions within the two support seats via sliders, ultimately causing the pin on it to push out of the mounting bracket and housing through the pin slot to secure the window. Furthermore, the number of rotations of the drive gear can be controlled by rotating the handle to adjust the extension distance of the pin. However, this method suffers from severe wear on the gear and rack after prolonged use, leading to slippage and difficulty in determining whether the lock is fully secured. It also lacks a sensing structure, making it difficult to effectively secure the lock when the installation length is too long or the slot is too large. Therefore, we provide a dual-point industrial cabinet door lock with a padlock hole. Utility Model Content
[0005] The problem this application aims to solve is: after long-term use of gears, the rack wears out significantly, making it easy for the teeth to slip, and it is difficult to determine whether they are completely fixed. Without a sensing structure, it is difficult to effectively fix the gears when the installation length is too long or the slot is too large.
[0006] To solve the above-mentioned technical problems, this application provides a dual-point industrial cabinet door lock with padlock hole, including a shell, a support shaft rotatably connected to the middle of the shell, an irregularly shaped rotating block provided on the outer side of the support shaft, a connecting rod one rotatably connected to the bottom end of the irregularly shaped rotating block, a connecting rod two rotatably connected to the bottom end of the irregularly shaped rotating block, and locking pins rotatably connected to the distal sides of the connecting rod one and the connecting rod two.
[0007] In some embodiments, a threaded rod is fixedly connected to the front side of each of the two locking pins. A threaded sleeve is rotatably connected to the outer side of the threaded rod, and a threaded rod is rotatably connected to the inside of the threaded sleeve. Two limiting blocks are provided inside the housing. A fixing block is provided inside the housing. A spring is provided on the outer side of the fixing block. A lever is provided at the top of the support shaft. A metal hole is provided at the top of the housing. A metal groove is provided at the bottom of the housing. A metal pin is slidably connected inside the metal groove.
[0008] In some embodiments, the locking pin is slidably connected inside the limiting block.
[0009] In some embodiments, the side of the spring away from the fixed block is disposed on the outside of the irregular rotating block.
[0010] In some embodiments, the toggle is rotatably connected to the top of the housing.
[0011] In some embodiments, the irregularly shaped rotating block is rotatably connected to the interior of the housing.
[0012] In some embodiments, the first threaded rod and the second threaded rod abut against each other.
[0013] This utility model has at least the following beneficial effects: 1. The support shaft is rotated by the lever, and the rotating block is linked to the first connecting rod and the second connecting rod to rotate. The limit block restricts the movement direction of the locking column, allowing the locking column to slide. At the same time, the spring provides pressure feedback, so as to achieve flexible and fixed installation as needed. It takes into account the convenience of quick installation and the structural stability of two-point fixation, effectively enhancing the overall firmness and safety protection performance. 2. By rotating the threaded sleeve, the threaded rod 2 is driven to extend and retract, thereby enabling free adjustment of the length for installation slots that are too large or for different installation requirements. This effectively solves the problem of unstable installation caused by insufficient clamp length, ensuring the overall stability of the equipment installation and guaranteeing its smooth operation. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the metal channel block structure of this utility model; Figure 3 This is a schematic diagram of the irregularly shaped rotating block structure of this utility model; Figure 4 This is a schematic diagram of the card post structure of this utility model; Figure 5 This is a schematic diagram of the threaded sleeve structure of this utility model.
[0015] In the diagram: 1. Outer shell; 2. Support shaft; 3. Irregular rotating block; 4. Connecting rod one; 5. Connecting rod two; 6. Locking pin; 7. Threaded rod one; 8. Threaded sleeve; 9. Threaded rod two; 10. Limiting block; 11. Fixing block; 12. Spring; 13. Pulling block; 14. Metal hole; 15. Metal groove block; 16. Metal pin. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] Example 1 Please see Figures 1-3 This utility model provides a technical solution: A dual-point industrial cabinet door lock with a padlock hole includes a housing 1. A support shaft 2 is rotatably connected to the middle of the housing 1. The housing 1 provides a mounting carrier for internal components, and its central rotatable connection structure ensures that the support shaft 2 can rotate stably around its own axis. A shaped rotating block 3 is provided on the outer side of the support shaft 2. When the support shaft 2 rotates, it can synchronously drive the outer shaped rotating block 3 to rotate together, realizing power transmission. A connecting rod 4 is rotatably connected to the bottom end of the shaped rotating block 3. The shaped rotating block 3 drives the connecting rod 4 to rotate through the bottom rotatable connection structure, transmitting the rotational force of the shaped rotating block to the connecting rod 4. The bottom end of the rotatably connects to the second connecting rod 5. The irregularly shaped rotating block 3 synchronously drives the second connecting rod 5 to rotate through the bottom rotating connection structure, forming a synchronous linkage mechanism of the two connecting rods. The far side of the first connecting rod 4 and the second connecting rod 5 are rotatably connected to the locking pin 6. When the first connecting rod 4 and the second connecting rod 5 rotate, they drive the locking pin 6 on the far side to move. The locking or unlocking action of the cabinet door lock is realized by the displacement of the locking pin. The irregularly shaped rotating block 3 is rotatably connected inside the outer shell 1. The rotating connection structure of the irregularly shaped rotating block 3 inside the outer shell 1 makes its rotational movement constrained by the outer shell, ensuring the stability of the movement trajectory and avoiding interference from external impurities.
[0018] Example 2 Please see Figures 1-4This utility model provides a technical solution: A threaded rod 7 is fixedly connected to the front side of each of the two locking posts 6. The threaded rod 7 provides the basic connection structure for length adjustment of the locking posts 6, and achieves length extension function through cooperation with a threaded sleeve. A threaded sleeve 8 is rotatably connected to the outer side of the threaded rod 7. The threaded sleeve 8 can drive the threaded rod 7 and the threaded rod 9 to produce relative displacement through rotation, serving as the core transmission component for length adjustment. A threaded rod 9 is rotatably connected inside the threaded sleeve 8. The threaded cooperation between the threaded rod 9 and the threaded sleeve 8 achieves telescopic movement, which can extend the effective working length of the locking posts 6. The design is adapted to different installation requirements; the housing 1 has two limiting blocks 10 inside, which limit the movement direction of the locking post 6 by engaging the outer side of the locking post 6, ensuring that the locking post 6 makes stable linear sliding movement; the housing 1 has a fixing block 11 inside, which provides a fixed support point for the spring 12, ensuring the installation stability when the spring is under force; the fixing block 11 has a spring 12 outside, which generates elastic deformation when the irregular rotating block 3 moves, providing clear pressure feedback for user operation; the top of the support shaft 2 has a lever 13, which serves as the operation input end, and the lever 13 is rotated to control the operation. The movement directly drives the support shaft 2 to rotate, enabling convenient opening and closing of the door lock; the top of the outer shell 1 is provided with a metal hole 14, which provides an installation interface for the padlock, enhancing the anti-pry security performance of the door lock; the bottom of the outer shell 1 is provided with a metal groove block 15, which provides a sliding guide channel for the metal pin 16, ensuring the stability of the metal pin's movement trajectory; the metal pin 16 is slidably connected inside the metal groove block 15, and the metal pin 16 can achieve an auxiliary limiting function by sliding, further improving the overall stability of the door lock after installation; the locking post 6 is slidably connected inside the limiting block 10. The sliding connection structure enables the locking pin 6 to make precise linear movements under the constraint of the limiting block, ensuring accurate locking positions at two points; the side of the spring 12 away from the fixed block 11 is set on the outside of the irregular rotating block 3, and the spring transmits elastic force to the transmission mechanism through the connection with the irregular rotating block 3, realizing operation feedback and motion reset assistance; the lever 13 is rotatably connected to the top of the outer shell 1, and its rotatable connection structure ensures stability during operation and avoids shaking that affects transmission accuracy; the threaded rod 1 7 and the threaded rod 2 9 abut each other, and the abutment structure ensures effective transmission of force when the threaded sleeve 8 rotates, ensuring smooth and reliable length adjustment process.
[0019] Based on the above embodiments, the following is the complete working principle of the above embodiments: When the lock needs to be installed and used, simply rotate the lever 13 to drive the support shaft 2 to rotate, and drive the connecting rod 4 and connecting rod 5 to rotate through the irregular rotating block 3, so that the two locking pins 6 can move. Since the limiting block 10 is locked on the outside of the locking pins 6 to restrict their movement in the opposite direction, the two locking pins 6 can slide. The spring 12 provides a pressure sensation to the user. According to the user's own needs, the entire device can be fixed and installed, increasing the overall stability. While installing quickly, two-point fixation increases its safety and stability. When the installation groove is too large, or due to installation requirements or other factors, the length of the two locking pins 6 is insufficient, resulting in an unstable installation, the threaded sleeve 8 can be rotated to drive the threaded rod 9 to move. The length can be freely adjusted according to the user and different terrain and requirements, ensuring the overall installation stability and ensuring the good operation of the device.
[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.
Claims
1. A dual-point industrial cabinet door lock with padlock hole, comprising a shell (1), characterized in that: A support shaft (2) is rotatably connected to the middle of the outer shell (1). A shaped rotating block (3) is provided on the outer side of the support shaft (2). A connecting rod (4) is rotatably connected to the bottom end of the shaped rotating block (3). A connecting rod (5) is rotatably connected to the bottom end of the shaped rotating block (3). A locking pin (6) is rotatably connected to the far side of the connecting rod (4) and the connecting rod (5).
2. The dual-point industrial cabinet door lock with padlock hole according to claim 1, characterized in that: Both of the two locking pins (6) are fixedly connected to the front side of a threaded rod (7). A threaded sleeve (8) is rotatably connected to the outer side of the threaded rod (7). A threaded rod (9) is rotatably connected to the inside of the threaded sleeve (8). Two limiting blocks (10) are provided inside the outer shell (1). A fixing block (11) is provided inside the outer shell (1). A spring (12) is provided on the outer side of the fixing block (11). A lever (13) is provided at the top of the support shaft (2). A metal hole (14) is provided at the top of the outer shell (1). A metal groove block (15) is provided at the bottom of the outer shell (1). A metal pin (16) is slidably connected inside the metal groove block (15).
3. The dual-point industrial cabinet door lock with padlock hole according to claim 2, characterized in that: The locking pin (6) is slidably connected inside the limiting block (10).
4. The double point hasp and staple industrial box door lock of claim 2, wherein: The side of the spring (12) away from the fixed block (11) is located on the outside of the irregular rotating block (3).
5. The dual-point industrial cabinet door lock with padlock hole according to claim 2, characterized in that: The lever (13) is rotatably connected to the top of the outer casing (1).
6. The double point hasp and staple industrial box door lock of claim 1, wherein: The irregularly shaped rotating block (3) is rotatably connected inside the outer shell (1).
7. The dual-point industrial cabinet door lock with padlock hole according to claim 2, characterized in that: The threaded rod one (7) and the threaded rod two (9) abut against each other.
Citation Information
Patent Citations
Pit-inserting type outward-opening two-point lock
CN221346640U