Library book anti-theft device

Abstract

The utility model relates to a library book anti-theft device, which comprises a base, a plurality of detection units and an acoustic magnetic label, two slots are horizontally arranged at the left end and the right end of the upper surface of the base in parallel, and a second anode copper column and a second cathode copper column are arranged in the slots. The second positive electrode copper column and the second negative electrode copper column are electrically connected with an external power source through wires, detection plates are detachably and vertically arranged in the two slots, the area between the detection plates on the left side and the right side is a detection area, and each detection plate is a rectangular plate formed by splicing a plurality of detection units connected in sequence. According to the utility model, the plurality of detachable detection units are arranged, so that replacement, maintenance, carrying and accurate detection are facilitated, the detection time is shortened, and the detection efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a library book theftproof technical field, specifically a library book theftproof device. BACKGROUND

[0002] The library book theftproof instrument can effectively prevent book loss, simplify management, improve work efficiency and create a good office and reading environment, and is composed of an alarm, an inductive detector and an inductive magnetic strip, and auxiliary equipment such as a charging and demagnetizer, a demagnetization plate and a back detector.

[0003] The existing library book theftproof instrument is fixed and assembled on a shell by bolts, and the whole shell needs to be disassembled for maintenance when one part is damaged, which is inconvenient for maintenance and replacement of parts and inconvenient for carrying, and the inductive detector part of the existing library book theftproof instrument can only detect whether the person entering or leaving carries an inductive magnetic strip that has not been demagnetized, and cannot accurately determine the height range of the inductive magnetic strip on the body of the carrier, and often needs to be checked to find the books carried in violation. INVENTION CONTENTS

[0004] The utility model solves the technical problem in the prior art, and provides a library book theftproof device.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme:

[0006] A library book theftproof device, comprising a base, a plurality of detection units and a sound and magnetic label, two insertion slots are horizontally and parallelly formed on the upper surface of the base at the left and right ends, a second positive copper column and a second negative copper column are arranged in the insertion slot, the second positive copper column and the second negative copper column are electrically connected with an external power supply through wires, and a detection plate is vertically and detachably arranged in the two insertion slots,

[0007] The area between the left and right detection plates is a detection area, and the detection plate is a rectangular plate spliced by a plurality of sequentially connected detection units,

[0008] The detection unit comprises a mounting plate, a sound and magnetic inductor, an alarm and a warning light, the sound and magnetic inductor and the alarm are arranged on the inner side of the mounting plate, the warning light is arranged on the surface of the mounting plate, the sound and magnetic inductor, the alarm and the warning light are connected in series to form a series circuit, and the signal output end of the sound and magnetic inductor is connected with the signal input ends of the alarm and the warning light at the same time, the first positive copper column and the first negative copper column are arranged on the upper and lower ends of the mounting plate and located on the left and right sides respectively, the upper and lower first positive copper columns on the same side are electrically connected and connected with one end of the series circuit at the same time, and the upper and lower first negative copper columns on the same side are electrically connected and connected with the other end of the series circuit at the same time,

[0009] When the bottom end of the detection plate is embedded into the inside of the slot, the second positive copper column and the second negative copper column are respectively electrically connected with the corresponding first positive copper column and the first negative copper column and are electrically connected with the external power supply through the wire, so that the acoustic magnetic inductor, the alarm and the warning light are simultaneously electrified, and the acoustic magnetic tag is used for being pasted on a book.

[0010] Further, the top of the mounting plate is provided with a flange, two positioning grooves are symmetrically formed in the top of the flange, a recess corresponding to the flange is formed in the bottom of the mounting plate, two positioning rings corresponding to the two positioning grooves are arranged on the inside of the recess, and a first positive copper column and a first negative copper column are respectively arranged on the inside of each of the two positioning grooves and the two positioning rings.

[0011] Further, when the mounting plates of the two adjacent detection units are connected in a head-to-tail mode, the positioning ring at the bottom of one of the mounting plates is embedded into the inside of the positioning groove at the top of the other mounting plate, and the two first positive copper columns and the two first negative copper columns in the inside of the corresponding positioning ring and the positioning groove are respectively electrically connected, so that the two series circuits of the two adjacent detection units form a parallel circuit.

[0012] Further, the inside of the slot is provided with a second positive copper column and a second negative copper column, and when the mounting plate is vertically embedded into the slot, the second positive copper column and the second negative copper column are respectively electrically connected with the corresponding first positive copper column and the first negative copper column.

[0013] Further, two clamping grooves are symmetrically formed on the left and right sides of the mounting plate, and a fixing member is arranged on the left and right sides of the mounting plate, the fixing member is a rectangular block, two clamping blocks are symmetrically arranged on the fixing member, and when the mounting plates of the two adjacent detection units are connected in a head-to-tail mode, the fixing member is used for inserting the two clamping blocks into the inside of the two clamping grooves close to the embedded end to fix the two adjacent mounting plates.

[0014] Further, the top of the uppermost mounting plate is provided with a protection block matched with the flange, and the protection block is used for protecting the flange and the two copper columns.

[0015] After the above technical scheme is adopted, the utility model has the following advantages compared with the prior art:

[0016] The utility model discloses a plurality of detachable detection units are set up, and the replacement maintenance, carrying and accurate detection are convenient, and the checking time is reduced, and the checking efficiency is improved, and each detection unit can independently embed into the socket of base, and is electrically connected with base. When the damage of certain detection unit, only need to pull out the unit from the socket, and the new unit can be replaced, and the whole shell does not need to be disassembled, and the process of maintenance and replacement parts is greatly simplified, and the plurality of detection units can be detachably connected in turn, and this design makes the device can flexibly increase or reduce the number of detection units according to actual needs. Meanwhile, since each part is detachable, the whole device is more convenient when carrying and rearranging. Compared with the traditional full body examination mode, the device of the embodiment can be more accurate in positioning the height position of the magnetic stripe through the setting of multiple detection units, unnecessary examination steps are reduced, and the examination efficiency is improved.

[0017] The utility model will be explained in detail below in connection with the drawings and examples. DRAWINGS

[0018] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0019] Figure 2 It is the internal structure section view of the utility model;

[0020] Figure 3 It is Figure 2 The enlarged view of A in the middle;

[0021] Figure 4 It is the base three-dimensional structure diagram;

[0022] Figure 5 It is the top structure schematic diagram of mounting block;

[0023] Figure 6 It is the bottom structure schematic diagram of mounting block;

[0024] Figure 7 It is the structure schematic diagram of fixed part;

[0025] Figure 8 It is the structure schematic diagram of protection block;

[0026] Figure 9 It is the schematic diagram of acousto-magnetic tag and book sticking position;

[0027] Figure 10 It is the circuit connection block diagram of the utility model.

[0028] In the drawings, the component list represented by each sign is as follows:

[0029] 1, base; 2, mounting plate; 3, acousto-magnetic inductor; 4, alarm; 5, warning light; 6, acousto-magnetic tag; 7, slot; 8, flange; 9, positioning groove; 10, groove; 11, positioning ring; 12, first positive copper column; 13, first negative copper column; 14, second positive copper column; 15, second negative copper column; 16, clamping groove; 17, fixing piece; 18, clamping block; 19, protection block. DETAILED DESCRIPTION

[0030] The principles and characteristics of the present application are described below in conjunction with the accompanying drawings, and the examples are only used to explain the present application and are not intended to limit the scope of the present application.

[0031] In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise" are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the devices or elements indicated to have a specific direction, to be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application.

[0032] As shown in Figures 1-10 A library book anti-theft device, comprising a base 1, a plurality of detection units and an acousto-magnetic tag 6, two slots 7 are horizontally and parallelly formed on the upper surface of the base 1, a second positive copper column 14 and a second negative copper column 15 are arranged in the slots 7, the second positive copper column 14 and the second negative copper column 15 are electrically connected to an external power source through wires, and a detection plate is vertically and detachably arranged in each of the two slots 7,

[0033] The area between the detection plates on the left and right sides is a detection area, and the detection plate is a rectangular plate formed by a plurality of detection units connected in sequence,

[0034] The detection unit comprises a mounting plate 2, an acousto-magnetic inductor 3, an alarm 4 and a warning light 5, the acousto-magnetic inductor 3 and the alarm 4 are arranged on the inner side of the mounting plate 2, the warning light 5 is arranged on the surface of the mounting plate 2, the acousto-magnetic inductor 3, the alarm 4 and the warning light 5 are connected in series to form a series circuit, and the signal output end of the acousto-magnetic inductor 3 is connected to the signal input ends of the alarm 4 and the warning light 5, the first positive copper column 12 and the first negative copper column 13 are arranged on the upper and lower ends of the mounting plate 2 and located on the left and right sides respectively, the upper and lower first positive copper columns 12 on the same side are electrically connected and connected to one end of the series circuit, and the upper and lower first negative copper columns 13 on the same side are electrically connected and connected to the other end of the series circuit,

[0035] When the bottom end of the detection plate is embedded into the inner side of the slot 7, the second positive copper column 14 and the second negative copper column 15 are respectively electrically connected with the corresponding first positive copper column 12 and the first negative copper column 13 and are electrically connected with the external power supply through the wires, so that the acoustic magnetic inductor 3, the alarm 4 and the warning light 5 are simultaneously electrified, and the acoustic magnetic label 6 is used for being pasted on a book.

[0036] As an implementation form, the top of the mounting plate 2 is provided with a flange 8, two positioning grooves 9 are symmetrically formed in the top of the flange 8, a recess 10 corresponding to the flange 8 is formed in the bottom of the mounting plate 2, two positioning rings 11 corresponding to the two positioning grooves 9 are arranged in the inner side of the recess 10, and the inner sides of the two positioning grooves 9 and the two positioning rings 11 are respectively provided with the first positive copper column 12 and the first negative copper column 13.

[0037] As an implementation form, when the mounting plates 2 of two adjacent detection units are connected in a head-to-tail mode, the positioning ring 11 in the bottom of one of the mounting plates 2 is embedded into the inner side of the positioning groove 9 in the top of the other mounting plate 2, the two first positive copper columns 12 and the two first negative copper columns 13 in the inner sides of the corresponding positioning ring 11 and the positioning groove 9 are respectively electrically connected, and the two series circuits of the two adjacent detection units form a parallel circuit.

[0038] As an implementation form, the inner side of the slot 7 is provided with the second positive copper column 14 and the second negative copper column 15, when the mounting plate 2 is vertically embedded into the slot 7, the second positive copper column 14 and the second negative copper column 15 are respectively electrically connected with the corresponding first positive copper column 12 and the first negative copper column 13.

[0039] As an implementation form, two clamping grooves 16 are symmetrically formed in the left and right sides of the mounting plate 2, the mounting plate 2 is provided with a fixing piece 17 on the left and right sides, the fixing piece 17 is a rectangular block, two clamping blocks 18 are symmetrically arranged on the fixing piece 17, when the mounting plates 2 of two adjacent detection units are connected in a head-to-tail mode, the fixing piece 17 is used for inserting the two clamping blocks 18 into the inner sides of the two clamping grooves 16 close to the embedded end to fix the two adjacent mounting plates 2.

[0040] As an implementation form, the top of the uppermost mounting plate 2 is provided with a protection block 19 matched with the flange 8, and the protection block 19 is used for protecting the flange 8 and the two copper columns.

[0041] In the utility model, the acoustic magnetic inductor 3 is BL-2800, and the alarm 4 is Qisheng LTA5002.

[0042] The working process of the utility model is: first, fix the base 1 position, then vertically insert the detection unit into the slot 7 of the base 1, ensure that the second positive copper column 14 and the second negative copper column 15 are electrically connected with the corresponding copper column on the detection unit, align and insert each detection unit through the positioning ring 11 at the bottom with the positioning groove 9 at the top of the adjacent unit, ensure that the first positive copper column 12 and the first negative copper column 13 are electrically connected. Thus complete the circuit connection of the whole detection area. Then insert the clamping block 18 on the fixing piece 17 into the corresponding clamping groove 16 inside the adjacent two mounting plates 2 to fix the adjacent two mounting plates 2, connect the wire on the base 1 with the external power supply, the acoustic magnetic inductor 3 starts to work, emits electromagnetic signals of specific frequency to the detection area. When the books with un-erased acoustic magnetic tags 6 pass through the detection area, the acoustic magnetic tags 6 will produce resonance signals. The acoustic magnetic inductor 3 in the same height range receives the resonance signals and sends the electric signals to the alarm 4 and the warning light 5. After the alarm 4 receives the electric signals, immediately produces alarm audio, at the same time the warning light 5 receives the electric signals and starts to flash, so as to attract the attention of the staff. According to the prompt of the alarm audio and the warning light 5, the staff quickly locates the person who carries the books in violation of the rules, and carries out corresponding inspection according to the height range corresponding to the warning light 5.

[0043] When a certain detection unit fails, the staff first disconnects the power supply, removes the fixing piece 17 on the left and right sides, then pulls it out of the slot 7 and replaces it with a new detection unit, and then inserts the fixing piece 17 to complete the replacement. According to the actual needs of the library, the staff can increase or decrease the number of detection units at any time to optimize the detection effect and coverage.

[0044] The above is an example of the best implementation of the utility model, wherein the parts not described in detail are the common knowledge of ordinary technical personnel in the art. The protection scope of the utility model is subject to the content of the claims, and any equivalent transformation based on the technical inspiration of the utility model is also within the protection scope of the utility model.

Claims

1. A library book anti-theft device, characterized in that, The utility model provides a kind of book anti-theft device, including base (1), multiple detection units and acousto-magnetic label (6), the upper surface of the base (1) left and right ends horizontal parallel is provided with two slots (7), the second positive pole copper column (14) and second negative pole copper column (15) are arranged in the slot (7), the second positive pole copper column (14) and second negative pole copper column (15) are electrically connected with external power supply by wire, two slots (7) are detachably vertically provided with detection plate, The area between the detection plates on the left and right sides is a detection area, and the detection plate is a rectangular plate spliced by multiple detection units connected in sequence, The detection unit includes a mounting plate (2), an acousto-magnetic inductor (3), an alarm (4) and a warning light (5), the inside of the mounting plate (2) is provided with the acousto-magnetic inductor (3) and the alarm (4), the surface of the mounting plate (2) is provided with the warning light (5), the acousto-magnetic inductor (3), the alarm (4) and the warning light (5) are connected in series to form a series circuit, and the signal output end of the acousto-magnetic inductor (3) is connected with the signal input end of the alarm (4) and the warning light (5) at the same time; the upper and lower ends of the mounting plate (2) are provided with a first positive pole copper column (12) and a first negative pole copper column (13) located on the left and right sides respectively, the upper and lower two first positive pole copper columns (12) located on the same side are electrically connected and connected with one end of the series circuit at the same time, and the upper and lower two first negative pole copper columns (13) located on the same side are electrically connected and connected with the other end of the series circuit at the same time, When the bottom end of the detection plate is embedded in the inside of the slot (7), the second positive pole copper column (14) and the second negative pole copper column (15) are respectively electrically connected with the corresponding first positive pole copper column (12) and first negative pole copper column (13) and electrically connected with the external power supply through the wire, so that the acousto-magnetic inductor (3), the alarm (4) and the warning light (5) are electrified at the same time, and the acousto-magnetic label (6) is used to be pasted on the book.

2. A library book theft deterrent device according to claim 1, wherein, The top of the mounting plate (2) is provided with a flange (8), the top of the flange (8) is symmetrically provided with two positioning grooves (9), the bottom of the mounting plate (2) is provided with a recess (10) corresponding to the flange (8), the inside of the recess (10) is provided with two positioning rings (11) corresponding to the two positioning grooves (9), and the inside of the two positioning grooves (9) and the two positioning rings (11) is respectively provided with the first positive pole copper column (12) and the first negative pole copper column (13).

3. A library book theft deterrent device according to claim 2, wherein, When the mounting plates (2) of two adjacent detection units are connected in head-to-tail mode, the positioning ring (11) at the bottom of one of the mounting plates (2) is embedded in the inside of the positioning groove (9) at the top of the other mounting plate (2), the two first positive pole copper columns (12) and the two first negative pole copper columns (13) in the inside of the corresponding positioning ring (11) and the positioning groove (9) are respectively electrically connected, and the two series circuits of the two adjacent detection units form a parallel circuit.

4. A library book theft deterrent device according to claim 3, wherein, Second positive pole copper column (14) and second negative pole copper column (15) are arranged in the inside of the slot (7), when the mounting plate (2) is vertically embedded into the slot (7), the second positive pole copper column (14) and the second negative pole copper column (15) are electrically connected with the corresponding first positive pole copper column (12) and the first negative pole copper column (13) respectively.

5. The library book theft deterrent device of claim 1, wherein, Two clamping grooves (16) are symmetrically arranged on the left and right sides of the mounting plate (2), and a fixing piece (17) is arranged on the left and right sides of the mounting plate (2), the fixing piece (17) is a rectangular block, two clamping blocks (18) are symmetrically arranged on the fixing piece (17), when the mounting plates (2) of two adjacent detection units are connected in a head-to-tail mode, the fixing piece (17) is used for inserting the two clamping blocks (18) into the inside of the two clamping grooves (16) close to the embedded end, so as to fix the two adjacent mounting plates (2).

6. The library book theft deterrent device of claim 1, wherein, The top of the uppermost mounting plate (2) is provided with a protection block (19) matched with the flange (8), and the protection block (19) is used for protecting the flange (8) and the two copper columns.

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