Roller shutter door lock

Abstract

The utility model relates to the technical field of roller shutter door locks, and discloses a roller shutter door lock which comprises a lock box, penetrating holes are formed in the two sides of the lock box, a sliding plate is arranged in the lock box, one end of the sliding plate penetrates through the penetrating holes, the other end of the sliding plate is fixedly connected with a spring bolt, and the spring bolt penetrates through the penetrating holes. Two positioning columns are fixedly connected to the inner wall of the bottom of the lock box, a positioning groove is formed in the upper surface of the sliding plate, the two positioning columns both penetrate through the positioning groove, and a mounting block is fixedly connected to the bottom of the sliding plate. According to the utility model, manual locking by personnel is not needed, automatic locking at the moment when the roller shutter door falls to the ground is really realized, the problem that personnel forget to lock and miss to lock is solved, the safety guarantee is enhanced, the potential safety hazard that other parts of locks are stumbled due to pre-embedded lock boxes on the ground is solved, and a ground channel is really safe and unobstructed; and the problem that other roller shutter bottom beam locks are difficult to install is solved, installation is convenient and fast, the installation time is greatly shortened, and the labor cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of rolling shutter door locks, and more specifically to a rolling shutter door lock. Background Art

[0002] As the name suggests, the rolling shutter door lock is the lock on the rolling shutter door. Its function is the same as a lock. It is used to lock the rolling shutter door so that outsiders cannot open it.

[0003] The existing rolling shutter locks usually require a lock box to be embedded in the ground during installation, which is not only cumbersome to install, but also poses a safety hazard of tripping. Utility Model Content

[0004] In order to overcome the above defects of the prior art, the utility model provides a rolling door lock to solve the problems existing in the above background technology.

[0005] The utility model provides the following technical solution: a rolling shutter door lock comprises a lock box, wherein both sides of the lock box are provided with through holes, a slide plate is provided in the lock box, and one end of the slide plate passes through the through hole, the other end of the slide plate is fixedly connected with a lock tongue, and the lock tongue passes through the through hole, the bottom inner wall of the lock box is fixedly connected with two positioning posts, the upper surface of the slide plate is provided with a positioning groove, the two positioning posts both pass through the positioning groove, the bottom of the slide plate is fixedly connected with a mounting block, one side of the mounting block is fixedly connected with a tension spring, and the tension spring is fixed to one of the positioning posts, one side of the slide plate is provided with a clamping groove, one side of the clamping groove is provided with an inclined surface, the bottom inner wall of the lock box is fixedly connected with a fixed shaft, the outer side of the fixed shaft is rotatably connected with a force arm, one end of the force arm is integrally formed with a clamping head, one side of the lock box is provided with an avoidance groove, and the force arm passes through the avoidance groove, the circumferential outer wall of the fixed shaft is sleeved with a torsion spring, and the two ends of the torsion spring are respectively fixed to the force arm and the lock box, and the upper surface of the slide plate is provided with a pulling groove at a position outside the lock box.

[0006] As a further solution of the utility model, a box cover is provided on the top of the lock box, a plurality of riveted studs are fixedly connected to the bottom of the lock box, and a plurality of fixing holes penetrating the box cover are provided on the upper surface of the box cover.

[0007] As a further solution of the utility model, the heights of the plurality of self-clinching studs and the two positioning posts are equal to the depth of the lock box.

[0008] As a further solution of the utility model, the box cover is fixed by screws and riveting studs.

[0009] As a further solution of the utility model, the plurality of self-riveting studs correspond one-to-one to the plurality of fixing holes respectively.

[0010] As a further solution of the utility model, the diameter of the two positioning columns is equal to the length of the positioning groove, and the width of the slide plate and the lock tongue are equal to the length and height of the through hole, so that the slide plate can move horizontally.

[0011] As a further solution of the utility model, the force arm and the avoidance groove do not interfere with each other, and the movement distance of the lock tongue is 30mm;

[0012] Technical effects and advantages of the utility model:

[0013] 1. When the bottom beam of the rolling shutter door touches the ground, the lock tongue inside the lock box instantly pops out a 30mm long lock tongue and goes directly into the rear cavity of the rolling shutter door track to achieve automatic locking. There is no need for personnel to manually lock it. The rolling shutter door can be automatically locked the moment it hits the ground, which solves the problem of people forgetting to lock or leaking locks, enhances safety protection, and solves the safety hazard of tripping caused by pre-buried lock boxes in other locks, truly ensuring safe and unobstructed ground passages.

[0014] 2. The lock body of the utility model is easy and quick to install, and is suitable for the installation of various common rolling door bottom beams and locks on the market. It solves the problem of difficult installation of other rolling door bottom beam locks, and is easy to install, greatly reducing the installation time and saving labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0016] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0017] Figure 3 It is a schematic diagram of the exploded structure of the utility model.

[0018] The accompanying drawings are marked as follows: 1. lock tongue; 2. slide plate; 3. avoidance groove; 4. lock box; 5. box cover; 6. lever arm; 7. slot; 8. fixed axis; 9. through hole; 10. inclined surface; 11. positioning groove; 12. positioning column; 13. clamping head; 14. pull groove; 15. rivet stud; 16. torsion spring; 17. tension spring; 18. mounting block. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative, and the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0020] Reference Figure 1-Figure 3 The utility model provides a rolling door lock, including a lock box 4, both sides of the lock box 4 are provided with through holes 9, a slide plate 2 is provided in the lock box 4, and one end of the slide plate 2 passes through the through hole 9, a lock tongue 1 is welded to the other end of the slide plate 2, and the lock tongue 1 passes through the through hole 9, two positioning columns 12 are welded to the inner wall of the bottom of the lock box 4, a positioning groove 11 is provided on the upper surface of the slide plate 2, and the two positioning columns 12 pass through the positioning groove 11, a mounting block 18 is welded to the bottom of the slide plate 2, and a tension spring 17 is welded to one side of the mounting block 18 , and the tension spring 17 is fixed to one of the positioning columns 12, a card slot 7 is provided on one side of the slide plate 2, and a slope 10 is provided on one side of the card slot 7, a fixed shaft 8 is welded to the inner wall of the bottom of the lock box 4, and the outer side of the fixed shaft 8 is rotatably connected to the force arm 6, and one end of the force arm 6 is integrally formed with a clamping head 13, and the clamping head 13 can be clamped with the card slot 7, a avoidance groove 3 is provided on one side of the lock box 4, and the force arm 6 passes through the avoidance groove 3, a torsion spring 16 is sleeved on the circumferential outer wall of the fixed shaft 8, and the two ends of the torsion spring 16 are respectively connected to the force arm 6 and the lock When the locking nut 13 is in the locking groove 7, the locking nut 13 is disengaged from the locking groove 7, and the tension spring 17 in the stretched state pulls the slide plate 2 to move, so that the lock tongue 1 on the slide plate 2 is instantly ejected through the perforation 9 and directly enters the rear cavity of the roller shutter door track to achieve an automatic locking state, without the need for manual locking by personnel, and the roller shutter door is truly automatically locked when it falls to the ground, solving the problem of personnel forgetting to lock or leaking locks, enhancing safety protection, and solving the safety hazard of tripping over the lock box 4 embedded in the ground of other locks, and truly achieving safe and unobstructed ground passages. A pull groove 14 is provided on the upper surface of the slide plate 2 outside the lock box 4, and the lock tongue 1 can be pulled back through the pull groove 14 to unlock.

[0021] In the utility model, a box cover 5 is provided on the top of the lock box 4, and a plurality of rivet studs 15 are welded on the bottom of the lock box 4. A plurality of fixing holes penetrating the box cover 5 are provided on the upper surface of the box cover 5. The heights of the plurality of rivet studs 15 and the two positioning columns 12 are equal to the depth of the lock box 4. The box cover 5 is fixed to the rivet studs 15 by screws. The plurality of rivet studs 15 correspond to the plurality of fixing holes one by one, and the screws are passed through the fixing holes to connect with the rivet studs 15, so that the box cover 5 is fixedly installed on the lock box 4. The diameter of the two positioning columns 12 is equal to the length of the positioning groove 11, and the widths of the slide plate 2 and the lock tongue 1 are equal to the length of the through hole 9, so that the slide plate 2 can move horizontally, and the force arm 6 and the avoidance groove 3 do not interfere with each other. The moving distance of the lock tongue 1 is 30 mm.

[0022] When the shutter door is in the state of being lowered, the lever arm 6 in the lock box 4 will contact the ground, and the lever arm 6 will be squeezed to rotate around the fixed shaft 8, so that the lever arm 6 will deform the torsion spring 16 and generate torque. At the same time, during the rotation of the lever arm 6, the clamping head 13 is located in the clamping groove 7, so the slide plate 2 will be pushed to move first. When the lever arm 6 completely enters the lock box 4, the clamping head 13 is disengaged from the clamping groove 7, and the tension spring 17 in the stretched state will pull the slide plate 2 to move, so that the lock tongue 1 on the slide plate 2 will instantly pop out the 30mm long lock tongue 1 through the perforation 9 and directly enter the rear cavity of the shutter door track to achieve the automatic locking state, without the need for personnel to manually lock the door, and the shutter door can be automatically locked at the moment of landing, which solves the problem of personnel forgetting to lock or leaking the lock, enhances safety protection, and solves the safety hazard of tripping caused by the lock box 4 embedded in the ground of other locks, so as to truly ensure the safety and smoothness of the ground passage.

[0023] Finally, a few points should be explained: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0024] In the drawings of the embodiments disclosed by the present invention, only the structures related to the embodiments disclosed by the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

Claims

1. A rolling door lock, comprising a lock box (4), characterized in that: Both sides of the lock box (4) are provided with through holes (9), a slide plate (2) is provided inside the lock box (4), and one end of the slide plate (2) passes through the through hole (9), the other end of the slide plate (2) is fixedly connected with a lock tongue (1), and the lock tongue (1) passes through the through hole (9), the bottom inner wall of the lock box (4) is fixedly connected with two positioning columns (12), the upper surface of the slide plate (2) is provided with a positioning groove (11), the two positioning columns (12) both pass through the positioning groove (11), the bottom of the slide plate (2) is fixedly connected with a mounting block (18), one side of the mounting block (18) is fixedly connected with a tension spring (17), and the tension spring (17) is connected to one of the positioning columns (1 2), a slot (7) is provided on one side of the slide plate (2), a slope (10) is provided on one side of the slot (7), a fixed shaft (8) is fixedly connected to the inner wall of the bottom of the lock box (4), a force arm (6) is rotatably connected to the outer side of the fixed shaft (8), a clamping head (13) is integrally formed at one end of the force arm (6), a avoidance groove (3) is provided on one side of the lock box (4), and the force arm (6) passes through the avoidance groove (3), a torsion spring (16) is sleeved on the circumferential outer wall of the fixed shaft (8), and the two ends of the torsion spring (16) are respectively fixed to the force arm (6) and the lock box (4), and a pull groove (14) is provided on the upper surface of the slide plate (2) at a position outside the lock box (4).

2. A rolling door lock according to claim 1, characterized in that: A box cover (5) is provided on the top of the lock box (4), a plurality of riveted studs (15) are fixedly connected to the bottom of the lock box (4), and a plurality of fixing holes penetrating the box cover (5) are provided on the upper surface of the box cover (5).

3. A rolling door lock according to claim 2, characterized in that: The heights of the plurality of pressure riveting studs (15) and the two positioning columns (12) are all equal to the depth of the lock box (4).

4. A rolling door lock according to claim 3, characterized in that: The box cover (5) is fixed to the rivet studs (15) by means of screws.

5. The rolling door lock according to claim 2, characterized in that: The plurality of riveting studs (15) correspond one-to-one to the plurality of fixing holes respectively.

6. The rolling door lock according to claim 1, characterized in that: The diameters of the two positioning columns (12) are equal to the length of the positioning groove (11), and the widths of the slide plate (2) and the locking tongue (1) are equal to the length and height of the through hole (9), so that the slide plate (2) can move horizontally.

7. The rolling door lock according to claim 1, characterized in that: The force arm (6) and the avoidance groove (3) do not interfere with each other, and the moving distance of the locking tongue (1) is 30 mm.

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