Angle-adjustable access punch card machine

Abstract

The utility model discloses an angle adjustable access control punch card machine belongs to access control punch card machine technical field, and its technical key points include punch card machine body and through the wall mounting plate of bolt fixed connection on the wall, the side of punch card machine body is close to the wall mounting plate and is provided with the angle adjusting assembly of adjusting to punch card machine body screen angle of orientation, the utility model discloses a setting angle adjusting assembly, and the user can easily adjust the screen angle of orientation of punch card machine body according to actual needs, and provide multi -gear, self -locking type stable angle regulation, the design makes punch card machine can adapt to different installation environment, user height and use habit, and the versatility and user experience of equipment have been improved significantly, through height adjusting assembly, avoid the user when carrying out facial recognition, and the deformation that produces because of the face that appears stretch or extrusion when bending head or lifting head, make punch card machine body more quickly identify the face of user.

Description

Technical Field

[0001] This utility model belongs to the technical field of access control card reader, specifically relating to an adjustable-angle access control card reader. Background Technology

[0002] Access control systems, as a core component of modern security and attendance management, are widely used in enterprises, industrial parks, buildings, and other locations. Traditional access control methods mainly include contact IC cards, magnetic cards, barcodes, and biometric technologies such as fingerprint and facial recognition.

[0003] A search revealed Chinese patent CN215576747U, which discloses a novel high-power intelligent access control card reader structure based on facial recognition. The structure includes a base, a circuit board, and a display screen. The circuit board has a system-on-a-chip (SoC), with a central processing unit on the left and an image preprocessor, a video decoding processor, and a video encoding processor integrated in the middle. However, existing access control card readers with facial recognition cannot adjust the angle according to the user's height, making it difficult for users of different heights to look directly at the card reader, thus leading to inaccurate facial recognition. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable access control card reader to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an adjustable access control card reader, comprising a card reader body and a wall mounting plate fixed to the wall by bolts, wherein an angle adjustment component for adjusting the orientation angle of the card reader screen is provided on the side of the card reader body near the wall mounting plate, and a height adjustment component for adjusting the height of the card reader body is provided on the side of the angle adjustment component near the wall mounting plate;

[0006] The angle adjustment assembly includes a connecting column that is fixedly connected to the side of the card reader body facing the wall mounting plate by bolts. A positioning shaft is fixedly connected to the end of the connecting column away from the card reader body. Limiting mechanisms are respectively provided at both ends of the positioning shaft, and a positioning column is sleeved on the surface of each limiting mechanism and fits against the limiting mechanism.

[0007] Preferably, the limiting mechanism includes two sets of holes symmetrically opened at both ends of the positioning shaft. Each set of holes consists of several limiting holes opened in a circular array. A rod is slidably connected inside each limiting hole, and a first spring is provided inside each limiting hole. The two ends of the first spring are fixedly connected to the rod and the positioning shaft, respectively. Two positioning posts are respectively sleeved on the surfaces of the two sets of holes. A limiting groove is opened inside each positioning post, and the rod is inserted into the limiting groove.

[0008] Preferably, the limiting groove has an annular wave-shaped structure, and the end of each insertion rod near the positioning post is arc-shaped and fits against the positioning post.

[0009] Preferably, the height adjustment assembly includes two fixed frames symmetrically fixed to the wall mounting plate facing the card reader body via bolts. Each of the two fixed frames has a toothed plate fixedly connected to an adjacent side, with the toothed surfaces of the two toothed plates adjacent to each other. A positioning shell is provided between the two fixed frames. A central groove is provided inside the positioning shell, and an elliptical plate is provided inside the central groove. The elliptical plate is rotatably connected to the positioning shell via a limiting shaft. Two extrusion plates are symmetrically arranged inside the central groove. Each of the two extrusion plates has a toothed block fixedly connected to an opposite side via a connecting rod. The toothed plates mesh with each other, with the toothed blocks evenly corresponding to each other.

[0010] Preferably, the two extrusion plates are respectively disposed on both sides of the elliptical plate and are in close contact with each other, and a second spring is fixedly connected to the opposite side of the two extrusion plates, and the end of the two second springs away from the extrusion plates is fixedly connected to the positioning shell.

[0011] Preferably, the inside of the concentrating groove is fixedly connected to two fixing rods, and the two fixing rods are not on the same horizontal line. The longer ends of the elliptical plate are respectively attached to the two fixing rods, so that when the longer ends of the elliptical plate are horizontally inside the concentrating groove, the elliptical plate is in an inclined state.

[0012] Preferably, a fixing plate is provided at the end of the positioning post facing the wall mounting plate, and a slider is slidably connected inside the fixing plate. Both positioning posts are fixedly connected to the slider. A limit rod is fixedly connected at the end of the slider facing the elliptical plate. The limit rod is inserted inside the elliptical plate. A sliding rod is fixedly connected inside the elliptical plate. A spiral corresponding to the sliding rod is formed on the surface of the limit rod. The sliding rod is slidably connected to the limit rod through a spiral groove.

[0013] Preferably, the wall mounting plate has two guide rods symmetrically fixedly connected to the side facing the card reader body, and the fixing plate is slidably connected to the two guide rods via a slider.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. By setting an angle adjustment component, this utility model allows users to easily adjust the screen orientation angle of the time clock according to actual needs. The angle adjustment adopts a wave-shaped limit groove and a spring rod to provide multi-level, self-locking, and stable angle adjustment. This design enables the time clock to adapt to different installation environments, user heights, and usage habits, significantly improving the versatility of the equipment and the user experience.

[0016] 2. This utility model utilizes the cooperation between the annular wave groove and the spring pin in the angle adjustment component, so that the user can feel a clear sense of the gear position when rotating the screen. It automatically locks after being released, effectively preventing the machine from rotating on its own.

[0017] 3. This utility model uses a height adjustment component to avoid facial deformation caused by stretching or squeezing when users look down or up during facial recognition, allowing the card reader to recognize the user's face more quickly. The height adjustment adopts a toothed plate and toothed block meshing structure, combined with a spiral drive unlocking mechanism, to achieve stepless lifting and reliable locking. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the vertical cross-sectional structure of the positioning column of this utility model;

[0020] Figure 3 This is an exploded view of the present invention;

[0021] Figure 4 This is a schematic diagram of the extrusion plate and elliptical plate structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the vertical cross-sectional structure of the positioning shell of this utility model;

[0023] Figure 6 This is a schematic diagram of the elliptical plate and sliding rod structure of this utility model.

[0024] In the diagram: 1. Time clock machine body; 2. Wall mounting plate; 3. Connecting column; 4. Positioning column; 5. Limiting groove; 6. Positioning shaft; 7. Limiting hole; 8. Insert rod; 9. First spring; 10. Fixing plate; 11. Guide rod; 12. Fixing frame; 13. Toothed plate; 14. Positioning shell; 15. Concentrated groove; 16. Toothed block; 17. Extrusion plate; 18. Elliptical plate; 19. Second spring; 20. Limiting rod; 21. Sliding rod. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1-6 This utility model provides an adjustable access control card reader, including a card reader body 1 and a wall mounting plate 2 fixed to the wall by bolts. An angle adjustment component is provided on the side of the card reader body 1 near the wall mounting plate 2 to adjust the orientation angle of the screen of the card reader body 1, and a height adjustment component is provided on the side of the angle adjustment component near the wall mounting plate 2 to adjust the height of the card reader body 1.

[0027] The angle adjustment assembly includes a connecting column 3 fixedly connected to the side of the card reader body 1 facing the wall mounting plate 2 by bolts. A positioning shaft 6 is fixedly connected to the end of the connecting column 3 away from the card reader body 1. Limiting mechanisms are provided at both ends of the positioning shaft 6, and a positioning column 4 is fitted on the surface of each limiting mechanism and fits against the limiting mechanism. The limiting mechanism includes two sets of holes symmetrically opened at both ends of the positioning shaft 6. Each set of holes consists of several limiting holes 7 opened in a ring array. A rod 8 is slidably connected inside each limiting hole 7. A first spring 9 is provided inside each limiting hole 7. The two ends of the first spring 9 are fixedly connected to the rod 8 and the positioning shaft 6, respectively. The two positioning columns 4 are respectively fitted on the surfaces of the two sets of holes. A limiting groove 5 is opened inside each positioning column 4. The rod 8 is inserted into the limiting groove 5. The limiting groove 5 has a ring wave-shaped structure, and the end of each rod 8 near the positioning column 4 is arc-shaped and fits against the positioning column 4.

[0028] When the orientation angle of the screen of the time clock machine 1 needs to be changed, force is applied to the time clock machine 1. The time clock machine 1 will rotate inside the limiting groove 5 with the positioning shaft 6 as the axis via the connecting column 3. When the positioning shaft 6 rotates, several insert rods 8 will slide inside the limiting hole 7 due to the limiting groove 5. The first spring 9 will be repeatedly compressed until the time clock machine 1 is adjusted to a suitable angle. After the force applied to the time clock machine 1 is released, several insert rods 8 will be inserted deep inside the limiting groove 5 due to the elastic potential energy of the first spring 9 and will fit against the positioning column 4. The limiting of the connecting column 3 is achieved by the shape of several insert rods 8 and the limiting groove 5, thus preventing the time clock machine 1 from rotating on its own.

[0029] In this utility model, the height adjustment component includes two fixed frames 12 that are symmetrically fixed to the wall mounting plate 2 facing the card reader body 1 by bolts. The adjacent sides of the two fixed frames 12 are fixedly connected to toothed plates 13, and the toothed surfaces of the two toothed plates 13 are adjacent. A positioning shell 14 is provided between the two fixed frames 12. A central groove 15 is provided inside the positioning shell 14. An elliptical plate 18 is provided inside the central groove 15. The elliptical plate 18 is rotatably connected to the positioning shell 14 by a limiting shaft. Two extrusion plates 17 are symmetrically arranged inside the central groove 15. The opposite sides of the two extrusion plates 17 are fixedly connected to toothed blocks 16 by connecting rods. The toothed plates 13 of the two toothed blocks 16 are evenly corresponding and meshed. The two extrusion plates 17 are respectively provided on both sides of the elliptical plate 18 and are in close contact with the elliptical plate 18. The opposite sides of the two extrusion plates 17 are fixedly connected to second springs 19. The ends of the two second springs 19 away from the extrusion plates 17 are fixedly connected to the positioning shell 14.

[0030] A fixing plate 10 is provided at one end of the positioning post 4 facing the wall mounting plate 2. A slider is slidably connected inside the fixing plate 10. Both positioning posts 4 are fixedly connected to the slider. A limit rod 20 is fixedly connected at one end of the slider facing the elliptical plate 18. The limit rod 20 is inserted inside the elliptical plate 18. A sliding rod 21 is fixedly connected inside the elliptical plate 18. A spiral corresponding to the sliding rod 21 is opened on the surface of the limit rod 20. The sliding rod 21 is slidably connected to the limit rod 20 through the spiral groove.

[0031] When the height of the card reader body 1 needs to be adjusted, first pull the card reader body 1 away from the wall mounting plate 2. The slider will slide inside the fixed plate 10, and the limit rod 20 will be pulled out from inside the elliptical plate 18. At the same time as it is pulled out, the slide rod 21 will slide inside the spiral groove. Due to the shape of the spiral groove, the slide rod 21 will cause the elliptical plate 18 to rotate inside the concentrating groove 15 until the elliptical plate 18 rotates 90°. Then the limit on the two pressing plates 17 will be released through the elliptical plate 18. The two pressing plates 17 will then move closer to each other due to the force applied by the second spring 19, thereby causing the two toothed blocks 16 to disengage from the toothed plate 13, thus releasing the limit on the card reader body 1, and the card reader body 1 can be moved up and down.

[0032] When the card reader body 1 is moved to a suitable height and needs to be positioned, press the card reader body 1 towards the wall mounting plate 2. The limiting rod 20 will be inserted into the interior of the elliptical plate 18 again, and at the same time, the sliding rod 21 will be inserted into the interior of the spiral groove. As the limiting rod 20 gradually extends in, the sliding rod 21 will drive the elliptical plate 18 to rotate in the opposite direction until it rotates 90°. When the elliptical plate 18 rotates, it will squeeze the two pressing plates 17, so that the two toothed blocks 16 re-engage with the toothed plate 13, thus achieving the limitation of the card reader body 1.

[0033] In this utility model, the inside of the concentrating groove 15 is fixedly connected to two fixing rods, and the two fixing rods are not on the same horizontal line. The two longer ends of the elliptical plate 18 are respectively attached to the two fixing rods, so that when the two longer ends of the elliptical plate 18 are horizontally inside the concentrating groove 15, the elliptical plate 18 is in an inclined state.

[0034] When the longer ends of the elliptical plate 18 are tilted inside the concentrating groove 15, it avoids excessive friction between the two pressing plates 17 and the elliptical plate 18 when the limit is released, thus preventing workers with less strength from easily contacting the limit.

[0035] In this utility model, two guide rods 11 are symmetrically fixedly connected to the side of the wall mounting plate 2 facing the card reader body 1, and the fixing plate 10 is slidably connected to the two guide rods 11 through a slider.

[0036] The two guide rods 11 can prevent the moving direction of the fixed plate 10 from deviating when the body 1 of the time clock moves up and down.

[0037] The use of this utility model involves the following steps:

[0038] S1: When it is necessary to change the orientation angle of the screen of the card reader 1, force is applied to the card reader 1. The card reader 1 will rotate inside the limiting groove 5 with the positioning shaft 6 as the axis via the connecting column 3. When the positioning shaft 6 rotates, several insert rods 8 will slide inside the limiting hole 7 due to the limiting groove 5. The first spring 9 will be repeatedly compressed until the card reader 1 is adjusted to a suitable angle. After the force applied to the card reader 1 is released, several insert rods 8 will be inserted deep inside the limiting groove 5 due to the elastic potential energy of the first spring 9 and will fit against the positioning column 4. The limiting of the connecting column 3 is achieved by the shape of several insert rods 8 and the limiting groove 5, thus preventing the card reader 1 from rotating on its own.

[0039] S2: When the height of the card reader body 1 needs to be adjusted, first pull the card reader body 1 away from the wall mounting plate 2. The slider will slide inside the fixed plate 10, and the limit rod 20 will be pulled out from inside the elliptical plate 18. At the same time as it is pulled out, the slide rod 21 will slide inside the spiral groove. Due to the shape of the spiral groove, the slide rod 21 will drive the elliptical plate 18 to rotate inside the concentrating groove 15 until the elliptical plate 18 rotates 90°. Then the limit on the two pressing plates 17 will be released through the elliptical plate 18. The two pressing plates 17 will move closer to each other due to the force applied by the second spring 19, thereby driving the two toothed blocks 16 to disengage from the toothed plate 13, thus releasing the limit on the card reader body 1. The card reader body 1 can then be moved up and down.

[0040] S3: When the card reader body 1 is moved to a suitable height and needs to be positioned, press the card reader body 1 towards the wall mounting plate 2. The limiting rod 20 will be inserted into the interior of the elliptical plate 18 again, and at the same time, the sliding rod 21 will be inserted into the interior of the spiral groove. As the limiting rod 20 gradually extends in, the sliding rod 21 will drive the elliptical plate 18 to rotate in the opposite direction until it rotates 90°. When the elliptical plate 18 rotates, it will squeeze the two pressing plates 17, so that the two toothed blocks 16 re-engage with the toothed plate 13, thus achieving the limitation of the card reader body 1.

[0041] Finally, the following points should be noted: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0042] The electronic components and modules used in this utility model can all be parts that are commonly used in the market and can achieve the specific functions in this case. The specific models and sizes can be selected and adjusted according to actual needs.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An angle-adjustable access control card reader, comprising a card reader body (1) and a wall mounting plate (2) fixedly connected to the wall by bolts, characterized in that: The card reader body (1) is provided with an angle adjustment component on the side near the wall mounting plate (2) to adjust the orientation angle of the screen of the card reader body (1), and a height adjustment component is provided on the side near the wall mounting plate (2) to adjust the height of the card reader body (1). The angle adjustment assembly includes a connecting column (3) that is fixedly connected to the side of the card reader body (1) facing the wall mounting plate (2) by bolts. A positioning shaft (6) is fixedly connected to the end of the connecting column (3) away from the card reader body (1). Limiting mechanisms are respectively provided at both ends of the positioning shaft (6), and a positioning column (4) is sleeved on the surface of each limiting mechanism and fits against the limiting mechanism.

2. The adjustable-angle access control card reader according to claim 1, characterized in that: The limiting mechanism includes two sets of holes symmetrically opened at both ends of the positioning shaft (6). Each set of holes consists of several limiting holes (7) arranged in a circular array. A rod (8) is slidably connected inside each limiting hole (7). A first spring (9) is provided inside each limiting hole (7). The two ends of the first spring (9) are fixedly connected to the rod (8) and the positioning shaft (6) respectively. Two positioning posts (4) are respectively sleeved on the surfaces of the two sets of holes. A limiting groove (5) is opened inside each positioning post (4). The rod (8) is inserted into the limiting groove (5).

3. The adjustable-angle access control card reader according to claim 2, characterized in that: The limiting groove (5) has an annular wave-shaped structure, and the end of each of the insert rods (8) near the positioning post (4) is arc-shaped and fits against the positioning post (4).

4. The adjustable-angle access control card reader according to claim 1, characterized in that: The height adjustment assembly includes two fixed frames (12) symmetrically fixed to the wall mounting plate (2) facing the card reader body (1) by bolts. Each of the two fixed frames (12) has a toothed plate (13) fixedly connected to an adjacent side. The toothed surfaces of the two toothed plates (13) are adjacent. A positioning shell (14) is provided between the two fixed frames (12). A central groove (15) is provided inside the positioning shell (14). An elliptical plate (18) is provided inside the central groove (15). The elliptical plate (18) is rotatably connected to the positioning shell (14) by a limiting shaft. Two extrusion plates (17) are symmetrically arranged inside the central groove (15). Each of the two extrusion plates (17) has a toothed block (16) fixedly connected to an opposite side by a connecting rod. The two toothed blocks (16) are evenly corresponding to the toothed plates (13) and mesh with each other.

5. The adjustable-angle access control card reader according to claim 4, characterized in that: The two extrusion plates (17) are respectively disposed on both sides of the elliptical plate (18) and are in close contact with each other. The opposite sides of the two extrusion plates (17) are fixedly connected with second springs (19), and the ends of the two second springs (19) away from the extrusion plates (17) are fixedly connected to the positioning shell (14).

6. The adjustable-angle access control card reader according to claim 4, characterized in that: The internal fixed connection of the central groove (15) consists of two fixed rods, which are not on the same horizontal line. The longer ends of the elliptical plate (18) are respectively attached to the two fixed rods, so that when the longer ends of the elliptical plate (18) are horizontally inside the central groove (15), the elliptical plate (18) is in an inclined state.

7. The adjustable-angle access control card reader according to claim 4, characterized in that: A fixing plate (10) is provided at one end of the positioning column (4) facing the wall mounting plate (2). A slider is slidably connected inside the fixing plate (10). Both positioning columns (4) are fixedly connected to the slider. A limiting rod (20) is fixedly connected at one end of the slider facing the elliptical plate (18). The limiting rod (20) is inserted inside the elliptical plate (18). A sliding rod (21) is fixedly connected inside the elliptical plate (18). A spiral corresponding to the sliding rod (21) is opened on the surface of the limiting rod (20). The sliding rod (21) is slidably connected to the limiting rod (20) through a spiral groove.

8. The adjustable-angle access control card reader according to claim 7, characterized in that: The wall mounting plate (2) is symmetrically fixedly connected to two guide rods (11) on the side facing the card reader body (1), and the fixing plate (10) is slidably connected to the two guide rods (11) by a slider.

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