Ejector pin type unlocking device

Abstract

The utility model relates to an anti-theft device, and aims to provide a thimble type unlocking device which has the characteristics of safety, reliability and convenience in use. According to the technical scheme, the ejector pin type unlocking device is characterized by comprising a grip and a handle which are rotationally connected, an ejector pin which is telescopically positioned in the grip, and a transmission mechanism which transmits power of the handle to drive the ejector pin to extend out of an unlocking surface of the grip.

Description

Technical Field

[0001] The utility model relates to an anti-theft device, in particular to a thimble type lock opener. Background Art

[0002] Both the Chinese utility model patents CN214365530U and CN205777934U disclose a lock core structure, and its working principle is as follows: the thimble is inserted into the anti-theft label to squeeze the top ring, and after the top ring is stressed, it continues to squeeze the outer ring of the plastic spring, forcing it to deform, so the inner ring of the plastic spring warps upwards to lift the push three-ball seat, realizing unlocking.

[0003] The defects of this structure are as follows: the thimble is two slender hanging needles, and a relatively large thrust is required to open the lock core of the anti-theft label, and the operation is relatively inconvenient; the thimble is small in volume and needs to be properly stored, otherwise it is extremely easy to lose; the front end of the thimble is relatively sharp, and it is easy to be bent under pressure, affecting unlocking, and it is also easy to cause personal injury. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies in the above background art and provide a thimble type lock opener, which should have the characteristics of safety, reliability and convenient use.

[0005] The technical solution of the utility model is as follows:

[0006] A thimble type lock opener, characterized in that it includes a handle and a handgrip connected by rotation, a thimble telescopically positioned in the handgrip, and a transmission mechanism for transmitting the power of the handgrip to drive the thimble to extend out of the unlocking surface of the handgrip.

[0007] The transmission mechanism includes a large gear coaxially fixed with the handgrip, a small gear meshing with the large gear, a rack meshing with the small gear, and a slider fixed to the rack.

[0008] The slider is slidably positioned on the back plate, and two parallel thimbles are fixed to the slider.

[0009] A torsion spring is installed on the rotating shaft of the handgrip; the unlocking surface is provided with a thimble hole for cooperating with the telescopic movement of the thimble.

[0010] Guide grooves for inserting anti-theft labels are provided on both side edges of the unlocking surface.

[0011] A telescopic ejector pin and a spring for pushing the ejector pin to extend out from the front end surface are further provided in the handgrip.

[0012] The unlocking surface is provided with an ejector pin hole for cooperating with the telescopic movement of the ejector pin.

[0013] It further includes a bracket for erecting the lock opener and a hanging rope connecting the handgrip.

[0014] The beneficial effects of the utility model are:

[0015] The utility model has the characteristics of simple structure, convenient use, safety and reliability; the utility model mainly uses the lever principle and gear transmission to unlock. When in use, the anti-theft label is loaded into the guide groove in the specified direction, and then the handle is pressed to push the ejector pin into the anti-theft label. After the plastic spring inside the anti-theft label is compressed, it jacks up the three-ball seat to complete the unlocking, which is convenient to operate and relatively labor-saving; at the same time, the ejector pin only extends outwards when unlocking, and is completely hidden inside the unlocker usually, which not only has high safety, is not easy to hurt people, but also can avoid deformation caused by collision and ensure normal use. Brief Description of the Drawings

[0016] Figure 1 is one of the three-dimensional structure diagrams of the utility model (the ejector pin does not extend out).

[0017] Figure 2 is the second three-dimensional structure diagram of the utility model (the ejector pin extends out).

[0018] Figure 3 is the front view structure diagram of the utility model.

[0019] Figure 4 is the sectional structure diagram of the utility model.

[0020] Figure 5 is the connection relationship diagram of the transmission mechanism of the utility model.

[0021] Figure 6 is the three-dimensional structure diagram of the unlocking surface of the utility model.

[0022] Figure 7 is the three-dimensional structure diagram of the back plate of the utility model.

[0023] Figure 8 is the three-dimensional structure diagram of the ejector pin and the slider of the utility model.

[0024] Figure 9 is the three-dimensional structure diagram of the ejector post of the utility model.

[0025] Figure 10 is the unlocking state diagram of the utility model.

[0026] Figure 11 is Figure 10 the sectional structure diagram of

[0027] Figure 12 is the three-dimensional structure diagram of the anti-theft label.

[0028] Figure 13 is the front view structure diagram of the anti-theft label.

[0029] Figure 14Schematic diagram of the bracket and lanyard of the present utility model.

[0030] Reference numerals:

[0031] Grip 1, thimble hole 1-1, guide groove 1-2, ejector pin hole 1-3, hand-held part 1.1, unlocking surface 1.2, handle 2, rotating shaft 2-1, anti-theft label 20, top cover 21, unlocking hole 22, slot 23, thimble 3, large gear 4, small gear 5, rack 6, slider 7, back plate 8, chute 8-1, torsion spring 9, ejector pin 10, sliding column 10-1, column head 10-2, spring 11, support block 12, bracket 13, lanyard 14. Detailed implementation manners

[0032] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0033] As Figure 1 shown, a thimble-type unlocking device includes a grip 1, a handle 2, and a thimble 3.

[0034] One end of the grip is a hand-held part 1.1, and the other end is an unlocking surface 1.2 for installing an anti-theft label and unlocking. As Figure 6 shown, two parallel guide grooves 1-2 are provided on both sides of the unlocking surface, and two thimble holes 1-1 and an ejector pin hole 1-3 are also provided between the guide grooves.

[0035] The handle is rotatably positioned on the grip through a rotating shaft 2-1, and a torsion spring 9 is installed on the rotating shaft for resetting the handle. The two ends of the torsion spring respectively abut against the grip and the handle.

[0036] The thimble is arranged in the grip, and a transmission mechanism is arranged between the grip and the thimble for transmitting the power of the handle. When the handle is rotated, the thimble is pushed out from the thimble hole on the unlocking surface under the action of the thrust force to unlock the anti-theft label.

[0037] The transmission mechanism includes a large gear 4, a small gear 5, a rack 6, a slider 7, and a back plate 8 arranged in sequence along the power transmission direction.

[0038] The large gear is coaxially fixed with the rotating shaft of the handle, the rotatable small gear meshes with the large gear, the slider can slide along the back plate, the rack meshes with the small gear and is fixed to the slider, a chute 8-1 for guiding the sliding of the slider is provided on the back plate, and two thimbles are arranged in parallel and fixed to one end of the slider. As Figure 3 and Figure 4 shown, when the handle is rotated counterclockwise, the large gear rotates clockwise, the small gear rotates counterclockwise, the rack and the slider move horizontally to the left, and the thimble extends out of the thimble hole.

[0039] The grip further includes a top column 10. The top column is slidably positioned on a support block 12 through a sliding column 10-1 at the rear end. The sliding direction of the top column is parallel to the sliding direction of the ejector pin. The support block is fixed to the grip. A spring 11 is sleeved on the sliding column. Under the action of the spring, a column head 10-2 at the front end of the top column extends out of a top column hole on the unlocking surface.

[0040] The unlocking device is also equipped with a bracket 13 and a lanyard 14. The bracket can be fixed on a tabletop, and the unlocking device is mounted on the bracket. One end of the lanyard is fixed to the tail of the grip, and the other end is fixed to the tabletop or the wall surface.

[0041] The working principle of the present utility model is as follows:

[0042] As Figure 12 shown, an existing anti-theft label 20 is provided with a top cover 21 in an arc shape. Six unlocking holes 22 communicating with the inner cavity are provided on the top cover. A circular slot 23 is provided below the top cover, and the inner wall of the slot is in a hexagonal structure.

[0043] As Figure 10 shown, when the anti-theft label is loaded into the unlocking device, the top cover of the anti-theft label is snapped into the guiding groove. Two adjacent vertices on one side of the hexagonal structure and two adjacent vertices on the symmetric other side respectively abut against the edges of the guiding grooves on both sides, thereby restricting the insertion direction of the anti-theft label (the hexagonal structure enables the anti-theft label to have 3 insertion directions).

[0044] After the anti-theft label is loaded into the guiding groove (the arc-shaped top cover of the anti-theft label can push open the top column), the top column presses against the top of the anti-theft label, and the anti-theft label is tightly pressed and fixed and not prone to shaking. The two ejector pin holes of the unlocking device and two symmetric unlocking holes of the anti-theft label are just vertically aligned (any 3 insertion directions can ensure the vertical alignment of the ejector pin holes and the unlocking holes). At this time, when the unlocking device is pressed, the handle drives the ejector pin to extend through the lever principle and gear transmission. The ejector pin then inserts into the unlocking hole and easily completes the unlocking.

[0045] The features of the present utility model are as follows: It can be unlocked without being powered on; it is convenient to carry and can be used immediately when unlocking; it uses the lever principle to drive the gear for unlocking, which can amplify the thrust and is very labor-saving for unlocking.

[0046] The preferred embodiments of the present utility model are given in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present utility model more thorough and comprehensive.

Claims

1. A thimble-type unlocking device, characterized in that: The invention comprises a grip (1) and a handle (2) which are rotatably connected, a push pin (3) which is telescopically positioned in the grip, and a transmission mechanism which transmits power from the handle to drive the push pin to extend out of the unlocking surface of the grip.

2. The ejector according to claim 1, characterized in that: The transmission mechanism comprises a large gear (4) coaxially fixed to the handle, a small gear (5) meshing with the large gear, a rack (6) meshing with the small gear, and a sliding block (7) fixed to the rack.

3. The ejector type lock opener according to claim 2, characterized in that: The slide block is slidably positioned on the back plate (8), and two parallel ejector pins are fixed to the slide block.

4. The ejector-type unlocking device according to claim 3, characterized in that: The rotating shaft of the handle is provided with a torsion spring (9); the unlocking surface is provided with an ejector hole (1-1) for cooperating with the extension and retraction of the ejector.

5. The ejector type unlocking device according to claim 1 or 4, characterized in that: Guide grooves (1-2) for inserting anti-theft tags are provided on both side edges of the unlocking surface.

6. The ejector type lock opener according to claim 5, characterized in that: The handle is also provided with a retractable top column (10) and a spring (11) for pushing the top column to extend out from the front end surface.

7. The ejector-type unlocking device according to claim 6, characterized in that: The unlocking surface is provided with a top post hole (1-3) cooperating with the extension and retraction of the top post.

8. The ejector-type lock opener according to claim 7, characterized in that: It also includes a bracket (13) for mounting the unlocking device and a hanging rope (14) connected to the handle.

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