A double-point industrial cabinet door lock

Abstract

The utility model relates to box door lock technical field, concretely to a kind of double-point industrial box door lock, including buckle body component and buckle seat component, buckle body component and buckle seat component cooperate and lock the lid and box, buckle body component includes the spring for the spring of buckle seat component locking provides elasticity, the lower portion of buckle body component is provided with the adjusting assembly for the elasticity of spring is adjusted, adjusting assembly includes fixed link, the inner surface of fixed link movably inserts adjusting rod, the outer surface of adjusting rod is equipped with several adjusting screw holes, the outer surface of fixed link is screwed and is passed adjusting bolt. The utility model, by screwing down adjusting bolt adjustment adjusting rod in the length inside fixed link, the position of adjusting disc is adjusted, so that adjusting disc slides on movable rod, drive the elasticity of spring, so as to be able to along with the elasticity change of spring the elasticity of spring is adjusted in time, guarantee the stability of buckle body component and buckle seat component connection.

Description

Technical Field

[0001] This utility model relates to the field of cabinet door lock technology, specifically a dual-point industrial cabinet door lock. Background Technology

[0002] Industrial enclosure door locks are locking devices specifically designed for various enclosures such as power distribution boxes, control cabinets, server racks, and machine tool housings in industrial settings. Their core function is to ensure the safety of equipment, wiring, or stored items inside the enclosure. They also meet the harsh requirements of industrial environments, featuring vibration resistance, impact resistance, high and low temperature resistance, and corrosion resistance. They are often made of materials such as zinc alloy and stainless steel, and some models also integrate waterproof and dustproof functions, meeting IP protection standards. Structurally, they consist of a lock body, lock cylinder, and handle or key assembly. Common types include rotary locks, compression locks, and linkage locks. The choice depends on the enclosure size, sealing requirements, and security level. They are widely used in intelligent manufacturing, power, communications, and rail transportation, and are fundamental components for the safe operation of industrial equipment.

[0003] A search revealed a Chinese patent (CN220667280U) disclosing a double-point latch for a housing, comprising a base, two axle seats, two axle clips, a pull rod axle, a combined rocker arm, two small floor plates, a handle, and an anti-disengagement locking mechanism. The two axle seats are fixed to the base, and the two axle clips are respectively connected to their respective axle seats via pins. The pull rod axle passes through the two axle clips, and both ends are connected to one end of the combined rocker arm via rocker arm bolts. The other end of the combined rocker arm is connected to a crossbeam bracket. The combined rocker arm consists of two middle rocker arms, a left rocker arm, and a right rocker arm. The two small floor plates are respectively... Fixed at both ends of the crossbeam bracket, with the handle fixed at the ends of the two shaft clips, the anti-disengagement locking mechanism consists of a safety hook, a locking seat, a safety hook connecting rod, a spring mounting rod, and a safety hook positioning rod. The two locking seats are fixed on both sides of the base, and the two safety hooks are respectively connected to the inner side of the corresponding shaft clips through the safety hook pivot. The front end of the safety hook engages with the corresponding locking seat, and the safety hooks are connected to each other through the safety hook positioning rod. The two ends of the safety hook positioning rod are connected to the spring mounting rod through springs, and the spring mounting rod is connected between the two shaft clips. The safety hook connecting rod is fixed at the ends of the two safety hooks.

[0004] The aforementioned patent proposes an anti-disengagement locking mechanism consisting of a safety hook, a locking seat, a spring, a safety hook positioning rod, and a spring mounting rod to prevent disengagement. However, in actual use, the locking function is achieved through the rebound force generated by the spring. But with prolonged use, the spring's elasticity will weaken as the usage time and the number of times the lock is opened increase, affecting the stability of the lock. Therefore, we propose a dual-point industrial box door lock. Utility Model Content

[0005] The technical problem to be solved by this application is that when a spring is used for a long time, its elastic force will weaken as the usage time and the number of times the lock is opened increases, thus affecting the stability of the lock. To address the aforementioned technical problems, this application provides a dual-point industrial enclosure door lock, comprising a latch assembly and a latch seat assembly. The latch assembly and the latch seat assembly cooperate to lock the enclosure cover to the enclosure. The latch assembly includes a spring for providing elastic force to lock the latch seat assembly. Below the latch assembly is an adjusting assembly for adjusting the elastic force of the spring. The adjusting assembly includes a fixed rod, with an adjusting rod movably inserted into the inner surface of the fixed rod. The outer surface of the adjusting rod has several adjusting screw holes, and an adjusting bolt is threaded through the outer surface of the fixed rod. The other end of the adjusting bolt is connected to the internal thread of one of the adjusting screw holes.

[0006] In some embodiments, the fastener assembly further includes a fixing seat mounted on the lid. A rotating seat is provided on the front outer surface of the fixing seat. A support shaft is rotatably connected inside the rotating seat. A fastening arm is sleeved on the outer surface of the support shaft. A connecting plate is provided at the other end of the fastening arm. A movable rod is movably passed through the outer surface of the connecting plate. An L-shaped fastening plate is provided at the other end of the movable rod. An adjusting plate is movably sleeved on the outer surface of the movable rod. A spring is disposed between the adjusting plate and the L-shaped fastening plate. The spring is sleeved on the outside of the movable rod. An adjusting assembly is disposed between the connecting plate and the adjusting plate. The fixing rod is connected to the bottom of the connecting plate, and the movable rod is connected to the top of the adjusting plate.

[0007] In some embodiments, the fastener assembly includes a mounting base, which is installed on the front side of the housing. The outer surface of the mounting base is provided with a mounting plate, and the bottom outer surface of the mounting plate is provided with a connecting fastener plate that mates with an L-shaped fastener plate. The outer surface of the connecting fastener plate is provided with a slot.

[0008] In some embodiments, the mounting plate is mounted on the surface of the fastener via a mounting assembly, the mounting assembly being used to adjust the position of the mounting plate.

[0009] In some embodiments, the mounting assembly includes multiple sets of mounting screw holes formed on the surface of the mounting base, with two mounting screw holes arranged symmetrically on the left and right sides in each set. Two mounting bolts pass through the outer surface of the mounting plate, and the other ends of the two mounting bolts are respectively connected to the internal threads of one set of mounting screw holes.

[0010] In some embodiments, mounting holes are provided at the four corners of the fixing base and the mounting base, and the mounting holes are oblong holes.

[0011] In some embodiments, the support shaft is a damped rotating shaft.

[0012] In some embodiments, the dimensions of the slot pair are larger than the dimensions of the vertical end of the L-shaped buckle.

[0013] This utility model has at least the following beneficial effects: This utility model allows for the adjustment of the length of the adjusting rod inside the fixed rod by unscrewing the adjusting bolt, thereby adjusting the position of the adjusting disc and causing the adjusting disc to slide on the movable rod. This, in turn, drives the spring force, enabling timely adjustment of the spring force as it changes, thus ensuring the stability of the connection between the buckle assembly and the buckle seat assembly. This invention allows for the adjustment of the mounting plate's position on the buckle by unscrewing the mounting bolts, ensuring that the distance between the L-shaped buckle and the connecting buckle is maintained so that the L-shaped buckle can be snapped into the connecting buckle. This makes it suitable for use with industrial boxes with lids of different thicknesses. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the locking structure of the present invention when the latch is locked. Figure 2 This is a schematic diagram of the exploded structure of this utility model; Figure 3 This is a schematic diagram of the structure of the latch of this utility model when it is opened; Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0015] In the diagram: 100, fixed base; 101, rotating base; 102, buckle arm; 103, connecting plate; 104, movable rod; 105, adjusting plate; 106, spring; 107, L-shaped buckle plate; 200, mounting base; 201, mounting plate; 202, connecting buckle plate; 300, fixed rod; 301, adjusting rod; 302, adjusting bolt; 400, mounting screw hole; 401, mounting bolt. 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 refer to Figures 1-4This utility model provides a technical solution: a double-point industrial box door lock, including a buckle assembly and a buckle seat assembly. The buckle assembly and the buckle seat assembly cooperate to lock the box cover and the box body. The buckle assembly includes a spring 106 for providing elastic force to lock the buckle seat assembly. Below the buckle assembly is an adjusting assembly for adjusting the elastic force of the spring 106. The adjusting assembly includes a fixing rod 300, an adjusting rod 301 is movably inserted into the inner surface of the fixing rod 300, and several adjusting screw holes are opened on the outer surface of the adjusting rod 301. An adjusting bolt 302 is threaded through the outer surface of the fixing rod 300, and the other end of the adjusting bolt 302 is connected to one of the adjusting bolts. The internal threaded connection of the adjusting screw hole is specifically designed to adjust the spring force of spring 106 when the spring force is insufficient. This is achieved by unscrewing the adjusting bolt 302, causing the adjusting rod 301 to slide inside the fixed rod 300, and the adjusting disc 105 to slide on the movable rod 104. This compresses the spring 106, increasing its spring force. The adjusting bolt 302 is then screwed into the corresponding adjusting screw hole to limit the movement of the adjusting rod 301 and the fixed rod 300. This allows for timely adjustment of the spring force as it changes, ensuring the stability of the connection between the buckle assembly and the buckle seat assembly.

[0018] In some embodiments, the buckle assembly further includes a fixing seat 100, which is mounted on the box cover. A rotating seat 101 is provided on the front outer surface of the fixing seat 100. A support shaft is rotatably connected inside the rotating seat 101. A buckle arm 102 is sleeved on the outer surface of the support shaft. A connecting plate 103 is provided at the other end of the buckle arm 102. A movable rod 104 is movably passed through the outer surface of the connecting plate 103. An L-shaped buckle plate 107 is provided at the other end of the movable rod 104. An adjusting plate 105 is movably sleeved on the outer surface of the movable rod 104. A spring 106 is provided between the adjusting plate 105 and the L-shaped buckle plate 107. Between 7, spring 106 is sleeved on the outside of movable rod 104, adjustment assembly is set between connecting plate 103 and adjustment plate 105, fixed rod 300 is connected to the bottom of connecting plate 103, movable rod 104 is connected to the top of adjustment plate 105. Specifically, force is applied to movable rod 104 and buckle arm 102. When force is applied to movable rod 104, movable rod 104 drives L-shaped buckle plate 107 downward, causing spring 106 to deform, and buckle arm 102 to rotate between rotating seats 101, causing L-shaped buckle plate 107 to rotate to the bottom of buckle assembly, thereby locking the box cover and box body.

[0019] In some embodiments, the fastener assembly includes a mounting base 200, which is mounted on the front side of the housing. The outer surface of the mounting base 200 is provided with a mounting plate 201. The bottom outer surface of the mounting plate 201 is provided with a connecting fastener 202 that cooperates with the L-shaped fastener 107. The outer surface of the connecting fastener has a slot. Specifically, the L-shaped fastener 107 rotates to be below the connecting fastener 202, so that the L-shaped fastener 107 corresponds to the connecting fastener 202. The force applied to the movable rod 104 is stopped, so that the elastic restoring force of the spring 106 drives the L-shaped fastener 107 to return to its original position, so that the vertical section of the L-shaped fastener 107 is engaged in the slot of the connecting fastener 202, thereby locking the lid and the housing.

[0020] In some embodiments, the mounting plate 201 is mounted on the surface of the fastener via a mounting assembly. The mounting assembly is used to adjust the position of the mounting plate 201. The mounting assembly includes multiple sets of mounting screw holes 400 formed on the surface of the mounting base 200. Each set of mounting screw holes 400 consists of two holes arranged symmetrically on the left and right sides. Two mounting bolts 401 are threaded through the outer surface of the mounting plate 201. The other ends of the two mounting bolts 401 are respectively connected to the internal threads of one set of mounting screw holes 400. Specifically, for cases with different thicknesses of case covers, the mounting distance between the fixing base 100 and the mounting base 200 is affected by the thickness of the case cover. Different installation distances result in different distances between the L-shaped buckle plate 107 and the connecting buckle plate 202, preventing the L-shaped buckle plate 107 from snapping into the connecting buckle plate 202. In this case, unscrew the mounting bolt 401 and adjust the position of the mounting plate 201 on the mounting base 200 so that the mounting bolt 401 is screwed into the corresponding mounting screw hole 400, limiting the distance between the mounting plate 201 and the mounting base 200. This ensures that the distance between the L-shaped buckle plate 107 and the connecting buckle plate 202 is maintained, allowing the L-shaped buckle plate 107 to snap into the connecting buckle plate 202. This makes it suitable for use with industrial boxes with lids of different thicknesses.

[0021] In some embodiments, mounting holes are provided at the four corners of the fixing base 100 and the mounting base 200. The mounting holes are oblong holes. Specifically, by providing oblong mounting holes, the reserved holes on the box cover and the box body can correspond to the oblong mounting holes of the fixing base 100 and the mounting base 200, which facilitates the installation of the fixing base 100 and the mounting base 200.

[0022] In some embodiments, the support shaft is a damping pivot. Specifically, by setting a support shaft with a damping pivot, the support shaft can always remain in the same fixed position when no external force is applied after force is applied to it.

[0023] In some embodiments, the size of the slot is larger than the size of the vertical end of the L-shaped buckle 107. Specifically, the length and width of the slot are 1mm-3mm larger than the length and width of the vertical end of the L-shaped buckle 107, respectively. The slot provides some space around it for the insertion of the L-shaped buckle 107, so that when the elastic force of the spring 106 moves the vertical end of the L-shaped buckle 107 upward, the L-shaped buckle 107 can be inserted into the slot.

[0024] Based on the above embodiments, the following is the complete working principle of the above embodiments: In use, the fixing seat 100 is installed on the box cover, and the mounting seat 200 is installed on the box body, thereby installing the fastening assembly and the fastening seat assembly on the box cover and the box body respectively. The box body and the box cover are locked by the cooperation of the fastening assembly and the fastening seat assembly. When locking, force is applied to the movable rod 104 and the fastening arm 102. When force is applied to the movable rod 104, the movable rod 104 drives the L-shaped fastening plate 107 downward, causing the spring 106 to deform. Then, the fastening arm 102 rotates between the rotating seats 101, causing the L-shaped fastening plate 107 to rotate to below the connecting fastening plate 202, so that the L-shaped fastening plate 107 corresponds to the connecting fastening plate 202. The force applied to the movable rod 104 is stopped, causing the spring 106 to spring back. The restoring force drives the L-shaped buckle plate 107 to reset, causing the vertical section of the L-shaped buckle plate 107 to engage in the slot of the connecting buckle plate 202, thereby locking the lid and the box body. When the spring force of the spring 106 is insufficient, the spring force of the spring 106 is adjusted. At this time, the adjusting bolt 302 is unscrewed, causing the adjusting rod 301 to slide inside the fixed rod 300, causing the adjusting plate 105 to slide on the movable rod 104, causing the adjusting plate 105 to compress the spring 106, increasing the spring force of the spring 106. Then, the adjusting bolt 302 is screwed into the corresponding adjusting screw hole to limit the adjustment rod 301 and the fixed rod 300, so that the spring force of the spring 106 can be adjusted in time according to the change of the spring force, ensuring the stability of the connection between the buckle body assembly and the buckle seat assembly.

[0025] Due to the varying thickness of the lid, the installation distance between the fixing base 100 and the mounting base 200 differs, resulting in different distances between the L-shaped buckle plate 107 and the connecting buckle plate 202. Consequently, the L-shaped buckle plate 107 cannot be snapped into the connecting buckle plate 202. In this case, the mounting bolt 401 is unscrewed, and the position of the mounting plate 201 on the mounting base 200 is adjusted so that the mounting bolt 401 is screwed into the corresponding mounting screw hole 400. This limits the movement of the mounting plate 201 and the mounting base 200, ensuring that the distance between the L-shaped buckle plate 107 and the connecting buckle plate 202 is maintained, allowing the L-shaped buckle plate 107 to snap into the connecting buckle plate 202. This method is suitable for use with industrial boxes containing lids of different thicknesses.

[0026] 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.

[0027] 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, comprising a latch assembly and a latch base assembly, characterized in that: The fastener assembly and the fastener seat assembly work together to lock the lid and the box body together. The fastener assembly includes a spring (106) for providing elastic force to lock the fastener seat assembly. An adjustment assembly for adjusting the elastic force of the spring (106) is provided below the fastener assembly. The adjustment assembly includes a fixed rod (300). An adjustment rod (301) is movably inserted into the inner surface of the fixed rod (300). Several adjustment screw holes are opened on the outer surface of the adjustment rod (301). An adjustment bolt (302) is threaded through the outer surface of the fixed rod (300). The other end of the adjustment bolt (302) is connected to the internal thread of one of the adjustment screw holes.

2. The dual-point industrial cabinet door lock according to claim 1, characterized in that: The fastener assembly also includes a fixing seat (100), which is mounted on the box cover. A rotating seat (101) is provided on the front outer surface of the fixing seat (100). A support shaft is rotatably connected inside the rotating seat (101). A fastening arm (102) is sleeved on the outer surface of the support shaft. A connecting plate (103) is provided at the other end of the fastening arm (102). A movable rod (104) is movably passed through the outer surface of the connecting plate (103). An L-shaped ... The L-shaped buckle plate (107) is movably fitted with an adjusting disc (105) on the outer surface of the movable rod (104). The spring (106) is disposed between the adjusting disc (105) and the L-shaped buckle plate (107). The spring (106) is sleeved on the outside of the movable rod (104). The adjusting assembly is disposed between the connecting plate (103) and the adjusting disc (105). The fixed rod (300) is connected to the bottom of the connecting plate (103). The movable rod (104) is connected to the top of the adjusting disc (105).

3. The dual-point industrial cabinet door lock according to claim 2, characterized in that: The fastener assembly includes a mounting base (200), which is installed on the front side of the housing. The outer surface of the mounting base (200) is provided with a mounting plate (201), and the bottom outer surface of the mounting plate (201) is provided with a connecting fastener (202) that cooperates with the L-shaped fastener (107). The outer surface of the connecting fastener has a slot.

4. The dual-point industrial cabinet door lock according to claim 3, characterized in that: The mounting plate (201) is mounted on the surface of the buckle by a mounting assembly, which is used to adjust the position of the mounting plate (201).

5. The dual-point industrial cabinet door lock according to claim 4, characterized in that: The mounting assembly includes multiple sets of mounting screw holes (400) formed on the surface of the mounting base (200). Each set of mounting screw holes (400) consists of two holes arranged symmetrically on the left and right. Two mounting bolts (401) are threaded through the outer surface of the mounting plate (201). The other ends of the two mounting bolts (401) are respectively connected to the internal threads of one set of mounting screw holes (400).

6. The dual-point industrial cabinet door lock according to claim 3, characterized in that: Mounting holes are provided at the four corners of both the fixed base (100) and the mounting base (200), and the mounting holes are oblong holes.

7. The dual-point industrial cabinet door lock according to claim 2, characterized in that: The support shaft is a damped rotating shaft.

8. The dual-point industrial cabinet door lock according to claim 3, characterized in that: The dimensions of the slot are larger than the dimensions of the vertical end of the L-shaped buckle (107).

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