Fence door locking device

Abstract

The utility model relates to the technical field of door lock mechanisms, in particular to a barrier door locking device. The butt-joint door frame comprises a hook body door frame and a lock body door frame, a butt-joint hook assembly is arranged on the hook body door frame, and a lock body sliding strip mechanism matched with the butt-joint hook assembly on the hook body door frame is arranged on the lock body door frame and located on the butt-joint face of the hook body door frame and the lock body door frame; the lock body sliding strip mechanism comprises a sliding lock strip, a sliding groove hole and a hook body penetrating hole are formed in the sliding lock strip, a sliding shaft is arranged in the sliding groove hole, one end of the sliding shaft is perpendicularly fixed to the butt joint face of the lock body door frame and the hook body door frame, the other end of the sliding shaft penetrates through the sliding groove hole, and the butt joint hook assembly comprises a hook body arranged on the side, facing the lock body door frame, of the hook body door frame. According to the technical scheme, the door lock connecting point stress is not single, the longitudinal stress at the butt joint position is uniform, the long-term use stability is reduced, the period is prolonged by multiple times, and the situation that two butt-jointed doors cannot be in butt joint due to partial deformation is avoided. And butt joint points are uniformly stressed and are not easy to damage and damage.

Description

Technical Field

[0001] The utility model relates to the technical field of door lock mechanisms, in particular to a fence door locking device. Background Art

[0002] The barrier door refers to the locking door body surrounding the entrance and exit of the subway station. When in use, slide the two doors along the slide rail to the middle to dock and then lock them, or slide the barrier door on one side to the other side to lock them. The docking part of the barrier door is the docking door frame, and the two door frames are locked when docking.

[0003] The existing door lock joints have a single stress, and the longitudinal force at the joint is uneven, which will reduce the stability after long-term use. The two doors that are connected will be unable to connect due to partial deformation and need to be replaced. Therefore, a locking device is needed that can maintain uniform force at the joint point of the fence door when locking and is not easy to cause damage. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a fence door locking device, and its technical solution is as follows:

[0005] A fence door locking device comprises a docking door frame, the docking door frame comprises a hook body door frame and a lock body door frame, the hook body door frame is provided with a docking hook assembly, and the lock body door frame is provided with a lock body slide bar mechanism that is compatible with the docking hook assembly on the hook body door frame at the docking surface between the hook body door frame and the lock body door frame; the lock body slide bar mechanism comprises a sliding lock bar, the sliding lock bar is provided with a slide slot hole and a hook body penetration hole, the slide slot holes are two or more, a sliding shaft is provided in the slide slot hole, one end of the sliding shaft is vertically fixed to the docking surface of the lock body door frame with the hook body door frame, and the other end passes through the slide slot hole, so that the slide bar mechanism can slide a first displacement distance along the slide slot hole; the docking hook assembly comprises a lock body door frame provided on the hook body door frame The hook body faces one side of the lock body door frame, and the hook body corresponds to the hook body penetration hole one by one. The hook body is a sheet hook including a hook tail, a hook head and a barb. The hook head is provided with a hook head impact surface, and the hook head impact surface faces the lock body door frame, and the hook tail is fixed on the hook body door frame; the barb faces upward; in the vertical direction, the distance from the lower surface of the hook tail to the highest point of the upper surface of the barb is less than or equal to the vertical length of the hook body penetration hole, when the sliding shaft is located at the uppermost end of the slide slot hole, the uppermost end of the hook body penetration hole is lower than the highest point of the upper surface of the barb in the horizontal direction, and the distance from the highest point of the upper surface of the barb to the upper surface of the hook tail in the vertical direction is less than the first displacement distance; the sliding lock strip is provided with a handle lock nose on the side facing away from the hook body door frame.

[0006] Furthermore, a lock nose slide hole matched with the handle lock nose is provided on a side of the lock body door frame facing the hook body door frame, and the vertical length of the lock nose slide hole is greater than or equal to the sum of the vertical length of the handle lock nose and the first displacement distance; a locking hinge matched with the handle lock nose is provided on a side of the lock body door frame facing away from the hook body door frame, and a lock hole is provided on the handle lock nose through the locking hinge part.

[0007] Furthermore, the impact surface of the hook head is circularly chamfered, the barb cross section is parallel to the sliding surface of the sliding lock strip, and the number of the hook bodies is two or more.

[0008] Furthermore, a docking piece is provided at the hook tail, the docking piece is fixedly connected to the hook body door frame by bolts, and the hook body is welded to the docking piece.

[0009] Furthermore, the sliding shaft is a bolt, and a bolt hole is opened on the lock body door frame. The bolt passes through the gasket, the slide slot hole and the bolt hole in sequence, and the other end is fixed with a nut.

[0010] Furthermore, the plate is bent into a U-shaped frame.

[0011] The stress of the door lock joint of this technical solution is not single, and the longitudinal force at the joint is uniform. The stability of long-term use is reduced and the cycle is extended several times. The two doors that are connected will not be unable to connect due to partial deformation. The joint point is evenly stressed and is not easy to cause damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the sliding lock strip;

[0013] Figure 2 Schematic diagram of hook body;

[0014] Figure 3 This is a schematic diagram of the handle lock nose;

[0015] Figure 4 It is a schematic diagram of locking hinge;

[0016] Figure 5 It is a schematic diagram of the assembly of the hook body and the hook body door frame;

[0017] Figure 6 for Figure 5 Side view;

[0018] Figure 7 It is a schematic diagram of the assembly of the sliding lock strip and the lock body door frame;

[0019] Figure 8 It is a schematic diagram of the side assembly of the sliding lock strip and the lock body door frame;

[0020] Figure numerals: hook body door frame 1, lock body door frame 2, sliding lock strip 3, slide groove hole 31, hook body through hole 32, sliding shaft 33, hook body 4, hook tail 41, hook head 42, barb 43, hook head impact surface 44, docking piece 5, handle lock nose 6, lock hole 61, lock nose sliding hole 7, locking hinge 8. DETAILED DESCRIPTION

[0021] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0023] In addition, the terms "first", "second", a, b, c, d, e, f, etc. are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0024] Example 1

[0025] The present embodiment discloses a fence door locking device, including a docking door frame, the docking door frame includes a hook door frame 1 and a lock door frame 2, the hook door frame 1 is provided with a docking hook assembly, and the lock door frame is provided with a lock body slide bar mechanism adapted to the docking hook assembly on the hook door frame 1 at the docking surface between the hook door frame 1 and the lock door frame 2; the lock body slide bar mechanism includes a sliding lock bar 3, and the sliding lock bar 3 is provided with a slide groove hole 31 and a hook body penetration hole 32, refer to Figure 1There are two or more slide slot holes 31, and a sliding shaft 33 is arranged in the slide slot hole 31. One end of the sliding shaft 33 is vertically fixed to the docking surface of the lock body door frame 2 with the hook body door frame 1, and the other end passes through the slide slot hole 31, so that the slide bar mechanism 3 can slide along the slide slot hole 31 for a first displacement distance; the docking hook assembly includes a hook body 4 arranged on the hook body door frame 1 facing the lock body door frame, and the hook body 4 corresponds to the hook body through hole 32 one by one, refer to Figure 2 The hook body 4 is a sheet-shaped hook including a hook tail 41, a hook head 42 and a barb 43. The hook head 42 is provided with a hook head impact surface 44, and the hook head impact surface 44 faces the lock body door frame 2, and the hook tail 41 is fixed on the hook body door frame; the barb 43 faces upward; in the vertical direction, the distance from the lower surface of the hook tail 41 to the highest point of the upper surface of the barb 43 is less than or equal to the vertical length of the hook body through hole 42, when the sliding shaft 32 is located at the uppermost end of the slide slot hole, the uppermost end of the hook body through hole 32 is horizontally lower than the highest point of the upper surface of the barb 43, and the distance from the highest point of the upper surface of the barb 43 to the upper surface of the hook tail 41 in the vertical direction is less than the first displacement distance; the sliding lock strip 3 is provided with a handle lock nose 6 on the side facing away from the hook body door frame, with reference to Figure 3 .

[0026] Assume that the hook body door frame 1 is on the left and the lock body door frame 2 is on the right. In the natural state, the sliding lock strip 3 has the sliding shaft 32 located at the highest point of the slide slot hole 31, that is, the sliding lock strip 3 falls down. At this time, the impact surface 44 of the docking hook head contacts the uppermost end of the hook body through hole 32 of the sliding lock strip 3. At this time, since the barb 43 is facing upward, the sliding lock strip 3 will be located on the slideway formed by the slide slot hole 31 along the sliding shaft 32, and fall to the highest point of the barb 43, and the sliding lock strip 3 will be restored to falling. The handle lock nose 6 can be used to manually lift the sliding lock strip 3 so that the uppermost end of the hook body through hole 32 is higher than the highest point of the barb 43, and the door can be opened at this time.

[0027] Example 2

[0028] This embodiment is further optimized on the basis of embodiment 1. Figures 5 to 8 The lock body door frame 2 is provided with a lock nose sliding hole 7 adapted to the handle lock nose 6 on one side facing the hook body door frame 1, and the vertical length of the lock nose sliding hole 7 is greater than or equal to the sum of the vertical length of the handle lock nose 6 and the first displacement distance. The lock body door frame 1 is provided with a locking hinge 8 adapted to the handle lock nose on one side facing away from the hook body door frame, and a lock hole 61 is provided on the handle lock nose 6 through the locking hinge 8. After docking, the handle lock nose 6 falls down, and the lock nose 6 is connected to the handle lock nose 6. Figure 4 At this time, the locking hinge 7 is folded, that is, the front end of the handle lock nose 6 passes through the locking hinge 7, and then a conventional padlock is added to achieve locking. The impact surface 44 of the hook head is rounded and chamfered to avoid scratching people. The cross section of the barb 43 is parallel to the sliding surface of the slide mechanism, that is, the sliding surface of the sliding lock strip 3. The number of hook bodies 4 is two or more, and 3 in the figure. Figure 7The middle hinge is not folded up, and the handle lock nose 6 is not drawn in order to see the lock nose sliding hole 7 clearly. Figure 8 The hinge can be seen folded up on the middle side, and the structure of the handle lock nose 6 is drawn.

[0029] A butt joint piece 5 is provided at the hook tail 41, and the butt joint piece 5 is fixedly connected to the hook body door frame 1 by bolts, and the hook body 4 is welded to the butt joint piece 5. This is used in the case where the hook body door frame 1 is made of low-temperature materials that cannot be directly welded, and at the same time, the butt joint piece 5 can be made of a high-strength alloy material to improve the strength without replacing the high-cost material of the entire door body. A butt joint piece 5 can also be added between the handle lock nose 6 and the sliding lock strip 3.

[0030] The sliding shaft 33 is a bolt, and a bolt hole is provided on the lock body door frame 2. The bolt passes through the gasket, the slide slot hole 31 and the bolt hole in sequence, and the other end is fixed with a nut. That is, the sliding lock bar 3 can slide. Similar track structures can also perform similar functions, which are not listed here one by one.

[0031] The docking door frame can be based on channel steel by drilling holes and welding on the channel steel, or the plate can be bent into a U-shaped frame as the device shell.

[0032] The stress of the door lock joint of this technical solution is not single, and the longitudinal force at the joint is uniform. The stability of long-term use is reduced and the cycle is extended several times. The two doors that are connected will not be unable to connect due to partial deformation. The joint point is evenly stressed and is not easy to cause damage.

[0033] 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 the 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 solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A fence door locking device, comprising a docking door frame, characterized in that: The docking door frame comprises a hook body door frame and a lock body door frame, the hook body door frame is provided with a docking hook assembly, and the lock body door frame is provided with a lock body slide bar mechanism compatible with the docking hook assembly on the hook body door frame at the docking surface of the hook body door frame and the lock body door frame; the lock body slide bar mechanism comprises a sliding lock bar, the sliding lock bar is provided with a slide slot hole and a hook body penetration hole, and there are two or more slide slot holes, and a sliding shaft is provided in the slide slot hole, one end of the sliding shaft is vertically fixed on the lock body door frame at the docking surface with the hook body door frame, and the other end passes through the slide slot hole, so that the slide bar mechanism can slide a first displacement distance along the slide slot hole; the docking hook assembly comprises a lock body slide bar mechanism provided on the hook body door frame toward the lock body door frame The hook body on the side, the hook body and the hook body penetration hole correspond one to one, the hook body is a sheet hook, including a hook tail, a hook head and a barb, the hook head is provided with a hook head impact surface, the hook head impact surface faces the lock body door frame, and the hook tail is fixed on the hook body door frame; the barb faces upward; in the vertical direction, the distance from the lower surface of the hook tail to the highest point of the upper surface of the barb is less than or equal to the vertical length of the hook body penetration hole, when the sliding shaft is located at the uppermost end of the slide slot hole, the uppermost end of the hook body penetration hole is lower than the highest point of the upper surface of the barb in the horizontal direction, and the distance from the highest point of the upper surface of the barb to the upper surface of the hook tail in the vertical direction is less than the first displacement distance; the sliding lock strip is provided with a handle lock nose on the side facing away from the hook body door frame.

2. The fence door locking device according to claim 1, characterized in that: A lock nose sliding hole matched with the handle lock nose is provided on a side of the lock body door frame facing the hook body door frame, and the vertical length of the lock nose sliding hole is greater than or equal to the sum of the vertical length of the handle lock nose and the first displacement distance; a locking hinge matched with the handle lock nose is provided on a side of the lock body door frame facing away from the hook body door frame, and a lock hole is provided on the handle lock nose through the locking hinge portion.

3. The fence door locking device according to claim 1, characterized in that: The impact surface of the hook head is circularly chamfered, the barb cross section is parallel to the sliding surface of the sliding lock strip, and the number of the hook bodies is two or more.

4. The fence door locking device according to claim 1, characterized in that: A docking piece is provided at the hook tail, the docking piece is fixedly connected to the hook body door frame by bolts, and the hook body is welded to the docking piece.

5. The fence door locking device according to claim 1, characterized in that: The sliding shaft is a bolt, and a bolt hole is provided on the lock body door frame. The bolt passes through the gasket, the slide slot hole and the bolt hole in sequence, and the other end is fixed with a nut.

6. The fence door locking device according to claim 1, characterized in that: The docking door frame is formed into a U-shaped frame by bending a plate.

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