Adjustable access control card reader support

Abstract

The utility model belongs to the field of entrance guard card reader supports, and particularly discloses an adjustable entrance guard card reader support which comprises a supporting foot and an installation base arranged on the top of the supporting foot, the installation base is provided with a bearing part, a plug is arranged on the top of the bearing part, clamping parts located on the bearing part are arranged on the two sides of the plug respectively, and the clamping parts are connected with the supporting foot. Pressing columns are arranged between the clamping parts on the two sides and the plug, extend into the bearing part and are in sliding fit with the bearing part. An ejection block is arranged on the side, close to the pressing columns, of the clamping part, the side face of the ejection block is in sliding fit with the interior of the clamping part, a transmission mechanism is connected between the ejection block and the adjacent pressing column, the transmission mechanism penetrates through the top of the bearing part and extends to the clamping part, and when the two pressing columns are pressed to descend to a preset distance, the distance between the two ejection blocks is reduced to form a clamping distance; according to the scheme, the access control card reader bracket can be matched with the widths of different access control card readers through self-adaptive adjustment, so that the use specifications of the access control card readers are prevented from being limited, and the universality and the economical efficiency are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to access control card reader support field, especially a kind of adjustable access control card reader support. BACKGROUND

[0002] Access control card reader is the important component device of access control system, usually cooperates with electric lock in access control system, access control card reader is responsible for generating the input signal of access control system, and electric lock is unlocked by input signal trigger, so that the door can be opened, it is also the key equipment in access control system.

[0003] At present, the width of different styles and models of access control card reader is different, and the access control card reader needs to be fixed by access control card reader support when using, since the specifications of access control card reader are various, there are both wider and smaller, which leads to that access control card reader support needs to be customized according to the width of access control card reader, and the customized access control card reader support matches the specifications of access control card reader, so that access control card reader can be firmly fixed on access control card reader support, it can be seen that the existing access control card reader support does not have the function of matching different access control card reader width by self-adaptive adjustment, and the universality is poor, so that the product procurement and maintenance replacement of access control card reader are limited by the specifications of original access control card reader support, if access control card reader is replaced, access control card reader and access control card reader support need to be replaced together, so as to increase the use cost of product procurement and maintenance replacement, and the economy is poor. SUMMARY

[0004] The utility model aims at providing a kind of adjustable access control card reader support, realize that access control card reader support matches the width of different access control card reader by self-adaptive adjustment, avoid to limit the use specifications of access control card reader, to improve the universality and economy of access control card reader support.

[0005] The utility model provides technical scheme as follows: a kind of adjustable access control card reader support, including support leg and the mounting seat of being located on the top of support leg, the mounting seat is equipped with supporting portion, the top of supporting portion is equipped with the plug for inserting the bottom of access control card reader, the two sides of plug are respectively equipped with the clamping portion on supporting portion, and the pressure column is equipped between the two sides clamping portion and plug, the pressure column extends to the inside of supporting portion, and with the sliding fit of supporting portion;

[0006] The side of clamping portion adjacent to pressure column is equipped with top block, the side of top block and the inside of clamping portion are slidingly fitted, the transmission mechanism is connected between top block and adjacent pressure column, the transmission mechanism penetrates the top of supporting portion and extends to the clamping portion, when two pressure columns are all dropped to preset distance, the spacing of two top blocks is reduced to form the clamping spacing for clamping access control card reader.

[0007] In the adjustable access control card reader support mentioned above, the transmission mechanism comprises a driving crank and a driven crank arranged in the clamping part, a gear fixed on the first end of the driving crank, and a rack connected with the pressure column, the rack penetrating through the top of the supporting part and being in sliding fit with the supporting part, and the gear is in meshing connection with the rack.

[0008] The driving crank is arranged downwardly inclined towards the supporting part, the driven crank is arranged parallel to and spaced from the driving crank, the first end of both the driving crank and the driven crank is hinged with the clamping part, and the second end of both the driving crank and the driven crank is in rotating fit with the top block and in sliding fit with the top block along the axial direction of the pressure column.

[0009] In the adjustable access control card reader support mentioned above, a guide rail extending along the axial direction of the pressure column is arranged on the top block, and a rotatable roller is arranged on the second end of both the driving crank and the driven crank, the roller is clamped on the guide rail, and the roller is in rotating fit and sliding fit with the guide rail.

[0010] In the adjustable access control card reader support mentioned above, the guide rail is a T-shaped slot, and the roller is clamped in the T-shaped slot.

[0011] In the adjustable access control card reader support mentioned above, an upper limiting block opposite to the top of the rack is fixed in the clamping part, and a lower limiting block is arranged on the side surface of the rack.

[0012] In the adjustable access control card reader support mentioned above, a connecting part connected with the pressure column is arranged on the rack, a guide column penetrating through the connecting part is arranged in the supporting part, the connecting part is in sliding fit with the guide column, a spring is sleeved on the guide column, the upper end of the spring abuts against the connecting part and the lower end of the spring abuts against the supporting part, and the upper end of the guide column is fixed on the top of the supporting part.

[0013] In the adjustable access control card reader support mentioned above, a pressure sensor, a buzzer and a control circuit board are fixed in the supporting part, the buzzer and the pressure sensor are in conductive connection with the control circuit board respectively, and the lower end of both the guide column and the spring abuts against the pressure sensor; a threading hole is arranged in the middle part of the supporting part.

[0014] In the adjustable access control card reader support mentioned above, a recess is arranged on the top surface of the supporting part between the pressure column and the plug on both sides.

[0015] In the adjustable access control card reader support mentioned above, the supporting leg and the mounting seat are detachably connected.

[0016] In the aforementioned adjustable access control card reader bracket, connection holes are provided on both sides of the support portion and the two clamping portions.

[0017] The beneficial effects of this utility model after adopting the above technical solution are as follows:

[0018] This technical solution involves installing a plug on the support section. The plug is inserted into the bottom of the access control card reader for installation and positioning. Pressure posts are located on both sides of the plug. When the access control card reader is inserted into the plug, it simultaneously presses down on the pressure posts. Under the downward force, both pressure posts slide down relative to the support section. During this descent, the pressure posts on both sides drive the top blocks on the clamping sections to move synchronously via corresponding transmission mechanisms. The top blocks move closer together until they clamp the access control card reader across its width. At this point, there is no more space for the top blocks to continue moving. A clamping gap is formed between them. At the same time, the access control card reader pushes against the top block through a reverse force. The top block, through a transmission mechanism, presses against the pressure column in the opposite direction, preventing the pressure column from descending further and lifting the access control card reader. A self-locking effect is formed between the pressure column and the top block, preventing the access control card reader from descending further, thus completing the installation of the access control card reader. It can be seen that when fixing the access control card reader, the access control card reader bracket achieves adaptive adjustment to match the width of different access control card readers through the linkage between the pressure column and the top block on the mounting base. This avoids restricting the usage specifications of the access control card reader and improves the versatility and economy of the access control card reader bracket. Attached Figure Description

[0019] Figure 1 This is a front view of the adjustable access control card reader bracket of Embodiment 1 of this utility model;

[0020] Figure 2 This is a cross-sectional view of the adjustable access control card reader bracket in its working state according to Embodiment 1 of this utility model;

[0021] Figure 3 This is a cross-sectional view of the adjustable access control card reader bracket in the initial state of Embodiment 1 of this utility model;

[0022] Figure 4 This is a schematic diagram of the guide rail structure of Embodiment 1 of this utility model.

[0023] Reference numerals: 1. Support leg; 2. Mounting base; 3. Clamping distance; 4. Access control card reader; 5. Transmission mechanism; 21. Support part; 211. Recess; 212. Plug; 213. Guide post; 214. Wiring hole;

[0024] 22. Clamping part; 221. Top block; 22211. Guide rail; 222. Upper limit block;

[0025] 23. Connecting hole; 24. Pressure column; 25. Spring; 26. Control circuit board; 27. Buzzer; 28. Pressure sensor;

[0026] 51. Driven crank; 52. Gear; 53. Driven crank; 54. Roller; 55. Rack; 551. Lower limit block; 552. Connecting part. Detailed Implementation

[0027] The technical solution of this utility model will be further described in detail below with reference to specific embodiments, but this does not constitute any limitation on this utility model.

[0028] Example 1:

[0029] like Figures 1-4 As shown, an adjustable access control card reader includes a support leg 1 and a mounting base 2 on the top of the support leg 1. The mounting base 2 has a support portion 21. The top of the support portion 21 has a plug 212 for inserting the bottom of the access control card reader 4. The plug 212 has clamping portions 22 on both sides located on the support portion 21. A pressure post 24 is provided between the clamping portions 22 on both sides and the plug 212. The pressure post 24 extends into the interior of the support portion 21 and slides with the support portion 21.

[0030] A top block 221 is provided on one side of the clamping part 22 adjacent to the pressure column 24. The side of the top block 221 slides in cooperation with the interior of the clamping part 22. A transmission mechanism 5 is connected between the top block 221 and the adjacent pressure column 24. The transmission mechanism 5 passes through the top of the support part 21 and extends to the clamping part 22. When both pressure columns 24 are pressed down to a preset distance, the distance between the two top blocks 221 is reduced to form a clamping distance 3 for clamping the access control card reader 4.

[0031] The specific adjustment principle of the access control card reader is that the plug 212 is arranged on the supporting portion 21, the plug 212 is inserted into the bottom of the access control card reader 4 to position and install the access control card reader 4, the plug 212 is provided with the pressing columns 24 on both sides, when the access control card reader 4 is inserted on the plug 212, the pressing columns 24 on both sides are simultaneously pressed down, the pressing columns 24 on both sides slide downward relative to the supporting portion 21 after being subjected to the downward force, in the process of downward movement, the pressing columns 24 on both sides drive the top blocks 221 on the clamping portions 22 on both sides to move synchronously through the corresponding transmission mechanisms 5, the top blocks 221 on both sides move close to each other, and the access control card reader 4 is clamped from the width direction of the access control card reader 4, at this time, there is no space for the top blocks 221 to continue to move, and the clamping spacing 3 is formed between the two top blocks 221. At the same time, the access control card reader 4 is pressed to the top blocks 221 through the reverse force, the top blocks 221 are reversely pressed to the pressing columns 24 through the transmission mechanisms 5, the pressing columns 24 cannot continue to descend and support the access control card reader 4, the self-locking effect is formed between the pressing columns 24 and the top blocks 221, the access control card reader 4 cannot continue to descend, and the installation of the access control card reader 4 is completed. It can be seen that when the access control card reader is fixed, the pressing columns 24 on the mounting seat 2 are linked with the top blocks 221, the width of the access control card reader is self-adaptively adjusted and matched with different access control card readers 4, the use specifications of the access control card readers 4 are not limited, and the versatility and economy of the access control card reader are improved.

[0032] In actual application, the plug 212 can be inserted into the bottom of the access control card reader 4 because the bottom of the access control card reader 4 is provided with a port for transmitting data, the plug 212 positions the access control card reader 4 by being inserted into the port, and the access control card reader 4 is pulled out of the mounting seat 2 when the access control card reader 4 needs to transmit data, so that the port at the bottom of the access control card reader 4 is emptied.

[0033] In the embodiment, the transmission mechanism 5 is preferably a double-crank mechanism and a rack 55 transmission mechanism 5, in addition to this, the transmission mechanism 5 is in real time linkage with the pressing columns 24 and the top blocks 221, and can also be a cam transmission mechanism 5 and a crank slider mechanism and other mechanisms matched with the rack 55 transmission mechanism 5, and the embodiment does not make too many limitations.

[0034] In combination with Figure 2 and Figure 3 It is shown that the specific structure of the transmission mechanism 5 is that the transmission mechanism 5 includes a driving crank 53 and a driven crank 51 arranged in the clamping portion 22, a gear 52 fixed on the first end of the driving crank 53, and a rack 55 connected with the pressing column 24, the rack 55 penetrates through the top of the supporting portion 21 and is in sliding cooperation with the supporting portion 21, and the gear 52 is in meshing connection with the rack 55.

[0035] The driving crank 53 is arranged downwardly inclined towards the supporting part 21, the driven crank 51 is arranged parallel to and spaced from the driving crank 53, the first ends of the driving crank 53 and the driven crank 51 are both hinged to the clamping part 22, the second ends of the driving crank 53 and the driven crank 51 are both rotationally fitted to the top block 221 and are both slidingly fitted to the top block 221 along the axial direction of the pressing column 24.

[0036] The specific transmission process of the transmission mechanism 5 is that the pressing column 24 is lowered to drive the rack 55 to be lowered, the rack 55 drives the gear 52 to rotate, the gear 52 drives the driving crank 53 to swing upwardly, so that the top block 221 on the clamping part 22 is pushed outwardly, and the driven crank 51 is synchronously swung upwardly to jointly push the top block 221 with the driving crank 53.

[0037] The specific connection mode of the driving crank 53 and the driven crank 51 with the guide rail 22211 is that the top block 221 is provided with a guide rail 22211 extending along the axial direction of the pressing column 24, the second ends of the driving crank 53 and the driven crank 51 are both provided with a rotatable roller 54, the roller 54 is clamped on the guide rail 22211, and the roller 54 is rotationally and slidingly fitted to the guide rail 22211.

[0038] The arrangement of the roller 54 avoids rigid friction between the driving crank 53, the driven crank 51 and the guide rail 22211, thereby improving the smoothness of the movement of the top block 221.

[0039] As shown in Figure 4 The specific structure of the guide rail 22211 is that the guide rail 22211 is a T-shaped groove, and the roller 54 is clamped in the T-shaped groove. In addition, the guide rail 22211 can also adopt a dovetail groove structure, which is not limited in the embodiment.

[0040] As shown in Figure 2 and Figure 3 Preferably, an upper limiting block 222 opposite to the top of the rack 55 is fixed in the clamping part 22, and a lower limiting block 551 is arranged on the side surface of the rack 55.

[0041] The upper limit block 222 is arranged to limit the maximum upward stroke of the rack 55, so that the driving crank 53 and the driven crank 51 are tilted towards the top of the clamping part 22 driven by the gear 52, thereby preventing the top block 221 from retreating into the clamping part 22 during the downward stroke of the rack 55, and avoiding loosening the access card reader 4. The lower limit block 551 is arranged to limit the maximum downward stroke of the rack 55, thereby indirectly limiting the maximum downward swing angle of both the driving crank 53 and the driven crank 51, so that the top block 221 does not approach too close to the first ends of the driving crank 53 and the driven crank 51, preventing the top block 221 from colliding with the first ends of the driving crank 53 and the driven crank 51 and the gear 52, and avoiding damage to the components.

[0042] In combination Figure 2 and Figure 3 As shown in FIG. 6, in specific applications, the rack 55 is provided with a connecting part 552 connected to the pressing column 24, the supporting part 21 is provided with a guide column 213 penetrating through the connecting part 552, the connecting part 552 is in sliding fit with the guide column 213, a spring 25 is sleeved on the guide column 213, the upper end of the spring 25 abuts against the connecting part 552, the lower end of the spring 25 abuts against the supporting part 21, and the upper end of the guide column 213 is fixed on the top of the supporting part 21.

[0043] The spring 25 is arranged to have a damping effect when the pressing column 24 is descending, and to have a resetting effect on the pressing column 24 and the rack 55 when the access card reader 4 is moving upwards. When the pressing column 24 is descending, the rack 55 is connected to the pressing column 24 through the connecting part 552 and descends synchronously with the pressing column 24. The connecting part 552 slides downward along the guide column 213 while the pressing column 24 is descending, and squeezes the spring 25 to make the spring 25 contract. When the access card reader 4 is removed, the spring 25 gradually deforms to return to the initial state as the access card reader 4 moves upwards, thereby completely ejecting the pressing column 24 and completely retracting the top block 221 for the next installation and use.

[0044] In combination Figure 2 and Figure 3 As shown in FIG. 7, further improvements are made, the supporting part 21 is fixed with a pressure sensor 28, a buzzer 27 and a control circuit board 26, the buzzer 27 and the pressure sensor 28 are respectively in conductive connection with the control circuit board 26, and the lower ends of both the guide column 213 and the spring 25 abut against the pressure sensor 28; a wire hole 214 is formed in the middle of the supporting part 21.

[0045] The control circuit board 26 obtains external power through the wiring hole 214, and then supplies power to the pressure sensor 28 and the buzzer 27. The lower end of the spring 25 abuts against the pressure sensor 28. Whenever the force of the pressure column 24 is transmitted to the pressure sensor 28 through the connecting part 552 and the spring 25, the pressure sensor 28 can sense the installation of the access control card reader 4. If it is not installed properly, it can sound an alarm through the buzzer 27. In addition, when the access control card reader 4 is pulled out, the pressure sensor 28 can also sense the change in pressure and make the buzzer 27 sound an alarm to warn that the access control card reader 4 is being pulled out, so as to attract the attention of people around and prevent the access control card reader 4 from being stolen.

[0046] Combination Figure 1 , Figure 2 and Figure 3 As shown, as a further improvement of this embodiment, a recess 211 is provided on the top surface of the support portion 21 between the pressure posts 24 on both sides and the plug 212.

[0047] The recess 211 provides a point of leverage for removing the access control card reader 4 from the mounting base 2. When removing the access control card reader 4, insert your finger or tool into the recess 211 and then push the access control card reader 4 upward. As the access control card reader 4 moves upward, the top blocks 221 on both sides also release simultaneously, allowing the access control card reader 4 to be easily pulled out.

[0048] Preferably, there are two recesses 211, which are located opposite each other on both sides of the plug 212, so that two fingers can be inserted into the recesses 211 to pry open the access control card reader 4. When prying open the access control card reader 4, in addition to using two fingers, a tool can also be used to insert into the two recesses 211 and push the access control card reader 4 from the left and right sides, so that the access control card reader 4 is evenly stressed and can move upward smoothly.

[0049] Combination Figure 1 and Figure 3 As shown, in another improvement of this embodiment, the support leg 1 is detachably connected to the mounting base 2.

[0050] When the mounting base 2 is connected to the support leg 1, the access control card reader serves as a stand to fix the access control card reader 4; when the mounting base 2 is separated from the bracket, the access control card reader's mounting base 2 serves as a hanger to fix the access control card reader 4.

[0051] The supporting part 21 has connecting holes 23 on both sides and the two clamping parts 22.

[0052] When the mounting base 2 is used as a hanger, it can be fixed to a wall or other location by means of adhesive or by means of connection hole 23.

[0053] The above embodiment is the preferred embodiment of the present application, but the embodiment of the present application is not limited by the above embodiment, and any change, modification, replacement, combination, simplification made without departing from the spirit and principle of the present application should be an equivalent replacement mode, and all are included in the protection scope of the present application.

Claims

1. An adjustable access card reader support, comprising a support leg and a mounting seat provided on the top of the support leg, the mounting seat is provided with a supporting part, the top of the supporting part is provided with a plug for inserting the bottom of an access card reader, characterized in that, Two sides of the plug are respectively provided with clamping parts on the supporting parts, and a pressing column is arranged between each of the clamping parts and the plug, the pressing column extends to the inside of the supporting part and is in sliding fit with the supporting part; A top block is arranged on one side of the clamping part adjacent to the pressing column, the side surface of the top block is in sliding fit with the inside of the clamping part, a transmission mechanism is connected between the top block and the adjacent pressing column, the transmission mechanism penetrates the top of the supporting part and extends to the clamping part, when the two pressing columns are pressed to drop to a preset distance, the distance between the two top blocks is reduced to form a clamping distance for clamping the access control card reader.

2. The adjustable access card reader mount of claim 1, wherein, The transmission mechanism comprises a driving crank and a driven crank arranged in the clamping part, a gear fixed on the first end of the driving crank, and a rack connected with the pressing column, the rack penetrates the top of the supporting part and is in sliding fit with the supporting part, and the gear is in meshing connection with the rack; The driving crank is downwardly inclined towards the supporting part, the driven crank is parallel to and spaced from the driving crank, the first ends of the driving crank and the driven crank are both hinged to the clamping part, and the second ends of the driving crank and the driven crank are both in rotational fit with the top block and are in sliding fit with the top block along the axial direction of the pressing column.

3. The adjustable access card reader mount of claim 2, wherein, A guide rail extending along the axial direction of the pressing column is arranged on the top block, rotatable rollers are arranged on the second ends of the driving crank and the driven crank, the rollers are clamped on the guide rail, and the rollers are in rotational fit and sliding fit with the guide rail.

4. The adjustable access card reader mount of claim 3, wherein, The guide rail is a T-shaped groove, and the rollers are clamped in the T-shaped groove.

5. The adjustable access card reader holder of claim 2, wherein, An upper limiting block opposite to the top of the rack is fixed in the clamping part, and a lower limiting block is arranged on the side surface of the rack.

6. The adjustable access card reader mount of claim 2, wherein, A connecting part connected with the pressing column is arranged on the rack, a guide column penetrating the connecting part is arranged in the supporting part, the connecting part is in sliding fit with the guide column, a spring is sleeved on the guide column, the upper end of the spring abuts against the connecting part and the lower end abuts against the supporting part, and the upper end of the guide column is fixed on the top of the supporting part.

7. The adjustable access card reader mount of claim 6, wherein, A pressure sensor, a buzzer and a control circuit board are fixed in the supporting part, the buzzer and the pressure sensor are in conductive connection with the control circuit board, the lower ends of the guide column and the spring abut against the pressure sensor, and a threading hole is arranged in the middle part of the supporting part.

8. The adjustable access card reader mount of any of claims 1-7, wherein, A recess is arranged between each of the pressing columns and the plug on the top surface of the supporting part.

9. The adjustable access card reader mount of any of claims 1-7, wherein, The supporting leg and the mounting seat are detachably connected.

10. The adjustable access card reader mount of claim 9, wherein, Connecting holes are arranged in the two sides of the supporting part and the two clamping parts.

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