Built-in door lock connecting mechanism

Abstract

The utility model provides a built-in door lock connecting mechanism which comprises a cabinet door and a lock body, the lock body is fixedly installed on the surface of the cabinet door, an upper pull rod and a lower pull rod are installed at the upper end and the lower end of the lock body respectively in a matched mode, and limiting rods are fixedly installed at one end of the upper pull rod and one end of the lower pull rod and are hollow square pipes. The limiting rod is slidably connected to the surface of the cabinet door through a guide structure. The limiting rod is arranged to be the hollow square pipe and has the advantage of being stable in structure, the at least two protective sleeves are arranged between the limiting rod and the cabinet door, the limiting rod has high stability when vertically moving on the surface of the cabinet door, the strength of the limiting rod is high, and high safety can be provided; the limiting rod can slide on the surface of the guide rod through the sliding groove, the sliding stroke of the limiting rod on the surface of the guide rod is limited due to the fact that the length of the sliding groove is limited, and the sliding stability of the limiting rod on the cabinet door is further improved.

Description

Technical Field

[0001] This utility model relates to the field of cabinet accessory technology, specifically to a built-in door lock connection mechanism. Background Technology

[0002] Server racks are typically made of cold-rolled steel or alloy plates and are used to house related control equipment. They protect the equipment inside and shield it from electromagnetic interference. Server racks are generally divided into server racks, network racks, and electrical equipment racks. To facilitate disassembly and maintenance, all racks are equipped with doors, which are fitted with multi-lock locks.

[0003] Most current top and bottom locks connect the upper and lower levers to two limit rods of corresponding lengths, and then use guides to make the upper and lower limit rods slide on the cabinet door. However, in order to save costs, the upper and lower limit rods are often simply replaced with thinner plates, and the number of guides is also small. Moreover, the upper and lower limit rods are simply fixed to the cabinet door without limiting their travel. This makes the sliding of the upper and lower limit rods on the cabinet door very unstable. Utility Model Content

[0004] The purpose of this utility model is to provide a built-in door lock connection mechanism to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A built-in door lock connection mechanism includes a cabinet door and a lock body. The lock body is fixedly installed on the surface of the cabinet door. An upper pull rod and a lower pull rod are respectively installed at the upper and lower ends of the lock body. A limit rod is fixedly installed at one end of each of the upper and lower pull rods. The limit rod is a hollow square tube. The limit rod is slidably connected to the surface of the cabinet door through a guide structure. The guide structure includes a sleeve, a through hole, a guide rod, and a slide groove. The slide groove is provided on the surface of the limit rod. The sleeve is fixedly connected to the surface of the cabinet door and sleeved on the surface of the limit rod. The through hole is provided on the surface of the sleeve. One end of the guide rod is fixedly installed on the surface of the cabinet door. The other end of the guide rod passes through the through hole and extends to the other side of the sleeve. The limit rod is slidably connected to the surface of the guide rod through the slide groove.

[0007] Preferably, the sheath consists of a front panel, a side panel, and a bottom plate. The side panel is vertically fixed between the front panel and the bottom plate. The front panel and the bottom plate are arranged in parallel. The front panel, the side panel, and the bottom plate are all in contact with the surface of the limiting rod.

[0008] Preferably, the two ends of the groove are set as arc surfaces, and the diameter of the arc surface is the same as the diameter of the through hole and the guide rod.

[0009] Preferably, there are two guide rods, and the distance between the two guide rods is less than the length of the groove.

[0010] Preferably, limit plates are fixedly installed on both sides of one end of the limit rod, and a roller is rotatably connected between the two limit plates.

[0011] Preferably, each of the limiting rods is slidably connected to the surface of the cabinet door by at least two sheaths, and the at least two sheaths are evenly distributed on the surface of the limiting rod.

[0012] Preferably, both the upper and lower pull rods are connected to the limiting rod via bolts and nuts.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model uses a hollow square tube as the limiting rod, which has the advantage of structural stability. At least two protective sleeves are set between the limiting rod and the cabinet door, which makes the limiting rod highly stable when moving vertically on the surface of the cabinet door. It also has high strength and can provide high safety. The limiting rod has a sliding groove on its surface, which allows it to slide on the surface of the guide rod. Since the length of the groove is limited, the stroke of the limiting rod on the surface of the guide rod is also limited, which further improves the stability of the limiting rod sliding on the cabinet door. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This utility model Figure 1 Enlarged structural diagram of area A in the middle;

[0017] Figure 3 This is a schematic diagram of the main structure of the sheath of this utility model;

[0018] Figure 4 This is a schematic diagram of the main structure of the lock body of this utility model.

[0019] In the diagram: 1. Cabinet door; 2. Lock body; 3. Upper pull rod; 4. Lower pull rod; 5. Limiting rod; 6. Protective sleeve; 7. Through hole; 8. Guide rod; 9. Slide groove; 10. Panel; 11. Side panel; 12. Bottom plate; 13. Curved surface; 14. Limiting plate; 15. Roller. Detailed Implementation

[0020] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 This utility model provides a built-in door lock connection mechanism, including a cabinet door 1 and a lock body 2. The lock body 2 is fixedly installed on the surface of the cabinet door 1. An upper pull rod 3 and a lower pull rod 4 are respectively installed at the upper and lower ends of the lock body 2. A limit rod 5 is fixedly installed at one end of the upper pull rod 3 and the lower pull rod 4. The upper pull rod 3 and the lower pull rod 4 are connected to the limit rod 5 by bolts and nuts. The limit rod 5 is a hollow square tube. The limit rod 5 is slidably connected to the surface of the cabinet door 1 through a guide structure. The guide structure includes a sleeve 6, a through hole 7, a guide rod 8, and a slide groove 9. The slide groove 9 is set on the surface of the limit rod 5. The sleeve 6 is fixedly connected to the surface of the cabinet door 1 and sleeved on the surface of the limit rod 5. The through hole 7 is set on the surface of the sleeve 6. One end of the guide rod 8 is fixedly installed on the surface of the cabinet door 1. The other end of the guide rod 8 passes through the through hole 7 and extends to the other side of the sleeve 6. The limit rod 5 is slidably connected to the surface of the guide rod 8 through the slide groove 9.

[0022] Compared with the prior art, this embodiment uses hollow square tubes to process the limiting rod 5 instead of sheet metal, which not only has higher mechanical strength, but also more stability during sliding. With the protective sleeve 6 used to guide the limiting rod 5, the stability during sliding can be further increased, thereby preventing the limiting rod 5 from getting stuck due to friction during sliding. The setting of the sliding groove 9 on the surface of the limiting rod 5 allows the limiting rod 5 to slide on the surface of the guide rod 8 through the sliding groove 9. Since the length of the sliding groove 9 is limited, the stroke of the limiting rod 5 on the surface of the guide rod 8 is also limited, which further improves the stability of the limiting rod 5 sliding on the cabinet door 1.

[0023] Please see Figures 1 to 4 When the lock body 2 moves the upper pull rod 3 and the lower pull rod 4 closer together, the upper pull rod 3 and the lower pull rod 4 can then move the two limit rods 5 closer together. When the limit rods 5 move, they can disengage from the inside of the cabinet, thus opening the cabinet door 1. When the lock body 2 moves the upper pull rod 3 and the lower pull rod 4 away from each other, the upper pull rod 3 and the lower pull rod 4 can then move the two limit rods 5 away from each other, causing the limit rods 5 to re-abut against the inner wall of the cabinet, thus closing the cabinet door 1. During the above process, the limit rods 5 can slide on the surface of the guide rod 8 through the slide groove 9. Since the position of the protective sleeve 6 is fixed, the limit rods 5 can also slide inside the protective sleeve 6. The protective sleeve 6 guides the limit rods 5 during the sliding process, thus achieving stable sliding of the limit rods 5.

[0024] The sheath 6 consists of a panel 10, a side plate 11, and a bottom plate 12. The side plate 11 is vertically fixed between the panel 10 and the bottom plate 12. The panel 10 and the bottom plate 12 are arranged in parallel. The panel 10, the side plate 11, and the bottom plate 12 are all in contact with the surface of the limiting rod 5.

[0025] Please see Figure 3 For the sheath 6, the panel 10, side plate 11 and bottom plate 12 are integrally formed by bending sheet metal. When the limiting rod 5 slides, the bottom plate 12, side plate 11 and panel 10 are always in contact with the surface of the limiting rod 5 to ensure the stability of the limiting rod 5 when it slides. The two bottom plates 12 do not contact each other to facilitate the overall processing of the sheath 6.

[0026] The two ends of the slide groove 9 are set as arc surfaces 13. The diameter of the arc surface 13 is the same as the diameter of the through hole 7 and the guide rod 8. There are two guide rods 8, and the distance between the two guide rods 8 is less than the length of the slide groove 9.

[0027] Please see Figure 2 and Figure 3 With the above structure, the inner wall of the slide groove 9 is always in contact with the surface of the guide rod 8 when the limiting rod 5 slides, which further ensures the stability of the limiting rod 5 when sliding. In the initial state, the whole formed by the two guide rods 8 is located in the middle part of the slide groove 9. As the slide groove 9 moves, one of the arc surfaces 13 of the slide groove 9 can abut against one of the guide rods 8. At this time, the limiting rod 5 moves to the maximum stroke.

[0028] Limiting plates 14 are fixedly installed on both sides of one end of the limiting rod 5, and rollers 15 are rotatably connected between the two limiting plates 14.

[0029] Please see Figure 3 When the limiting rod 5 slides on the surface of the cabinet door 1, it can drive the roller 15 to move synchronously through the limiting plate 14. When the cabinet door 1 is locked, the roller 15 is in contact with the inner wall of the cabinet. When the cabinet door 1 is opened, the limiting rod 5 drives the roller 15 to move through the limiting plate 14. At this time, the friction between the roller 15 and the inner wall of the cabinet will drive the roller 15 to rotate, thus facilitating the movement of the limiting rod 5.

[0030] Each limiting rod 5 is slidably connected to the surface of the cabinet door 1 by at least two protective sleeves 6, and the at least two protective sleeves 6 are evenly distributed on the surface of the limiting rod 5.

[0031] Please see Figure 1For cabinet door 1, its height is determined by the cabinet body. For a conventional cabinet body, the upper pull rod 3 and the lower pull rod 4 alone are not enough to lock cabinet door 1. After the limit rod 5 is equipped, the upper pull rod 3 and the lower pull rod 4 can drive the limit rod 5 to lock cabinet door 1. Therefore, multiple protective sleeves 6 are needed to guide the limit rod 5 to ensure the stability of the limit rod 5 when it slides.

[0032] It should be noted that, Figure 4 The present invention provides a structural diagram of a lock body 2 and an upper pull rod 3 and a lower pull rod 4. Since the upper pull rod 3 and the lower pull rod 4 are connected to the limiting rod 5 by bolts and nuts, and the upper pull rod 3 and the lower pull rod 4 in the prior art are also provided with holes for bolts to pass through, this embodiment can be adapted to any type of lock in the prior art, such as electronic locks and mechanical locks.

[0033] 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, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A built-in door lock connection mechanism, comprising a cabinet door (1) and a lock body (2), wherein the lock body (2) is fixedly installed on the surface of the cabinet door (1), and an upper pull rod (3) and a lower pull rod (4) are respectively installed at the upper and lower ends of the lock body (2), characterized in that: One end of the upper pull rod (3) and the lower pull rod (4) are fixedly installed with a limiting rod (5). The limiting rod (5) is set as a hollow square tube. The limiting rod (5) is slidably connected to the surface of the cabinet door (1) through a guide structure. The guide structure includes a sleeve (6), a through hole (7), a guide rod (8) and a slide groove (9). The slide groove (9) is set on the surface of the limiting rod (5). The sleeve (6) is fixedly connected to the surface of the cabinet door (1) and sleeved on the surface of the limiting rod (5). The through hole (7) is set on the surface of the sleeve (6). One end of the guide rod (8) is fixedly installed on the surface of the cabinet door (1). The other end of the guide rod (8) passes through the through hole (7) and extends to the other side of the sleeve (6). The limiting rod (5) is slidably connected to the surface of the guide rod (8) through the slide groove (9).

2. The built-in door lock connection mechanism according to claim 1, characterized in that: The sheath (6) is composed of a panel (10), a side plate (11) and a bottom plate (12). The side plate (11) is vertically fixed between the panel (10) and the bottom plate (12). The panel (10) and the bottom plate (12) are arranged in parallel. The panel (10), the side plate (11) and the bottom plate (12) are all in contact with the surface of the limiting rod (5).

3. The built-in door lock connection mechanism according to claim 2, characterized in that: The two ends of the groove (9) are set as arc surfaces (13), and the diameter of the arc surface (13) is the same as the diameter of the through hole (7) and the guide rod (8).

4. The built-in door lock connection mechanism according to claim 3, characterized in that: There are two guide rods (8), and the distance between the two guide rods (8) is less than the length of the groove (9).

5. The built-in door lock connection mechanism according to claim 1, characterized in that: Limiting plates (14) are fixedly installed on both sides of one end of the limiting rod (5), and rollers (15) are rotatably connected between the two limiting plates (14).

6. The built-in door lock connection mechanism according to claim 2, characterized in that: Each of the limiting rods (5) is slidably connected to the surface of the cabinet door (1) by at least two sleeves (6), and the at least two sleeves (6) are evenly distributed on the surface of the limiting rod (5).

7. The built-in door lock connection mechanism according to claim 1, characterized in that: Both the upper pull rod (3) and the lower pull rod (4) are connected to the limiting rod (5) by bolts and nuts.

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