Book anti-theft alarm monitor

Abstract

The utility model relates to the field of alarm monitors, and discloses a book anti-theft alarm monitor which comprises a supporting base, alarm hosts are symmetrically arranged on the upper surface of the supporting base, detection doors are clamped to the upper surfaces of the alarm hosts, guide limiting grooves are formed in the front ends and the rear ends of the alarm hosts, and placement clamping grooves are formed in the middles of the bottom ends of the detection doors. Limiting blocks are symmetrically welded to the bottom of one side of the detection door, limiting holes are formed in the middles of one sides of the limiting blocks in a penetrating mode, a fixed inner cavity is formed in the position, close to the single side of the detection door, of the inner top of the alarm host, and limiting rods are movably arranged at the front end and the rear end of the inner wall of the fixed inner cavity. The limiting rod is controlled to move through the adjusting mechanism, so that the effect of convenient clamping connection and disassembly of the detection door and the alarm host is achieved, the rapid disassembly effect of the detection door is reflected, the problem that the detection door blocks a large-size object is avoided, overall operation is easy and convenient, and time and labor are saved during operation of people.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of alarm monitoring instruments, in particular to a book anti-theft alarm monitoring instrument. BACKGROUND

[0002] In the scenarios of libraries, bookstores, etc., the book anti-theft alarm monitoring instrument is a key device to protect the safety of books. It issues an alarm when a book is taken out of a specific area without authorization by detecting the book anti-theft tag, thereby effectively preventing book theft and protecting the order of book management in the place.

[0003] However, the existing book anti-theft alarm monitoring instrument has significant deficiencies in actual application. The distance between adjacent detection plates is fixed and limited, and when large tool books, hardcover book collections, or readers carrying large packages pass through, the detection plates are easy to block the objects. This not only reduces the efficiency of passing through, but also may cause damage to the equipment or objects due to the collision of the objects with the detection plates. The existing monitoring instrument is fixed to the ground by means of bolts, etc. When large-volume objects need to pass through and the detection plates need to be disassembled, tools are needed to disassemble the fixed parts, which is cumbersome and time-consuming to operate, and frequent disassembly may damage the installation structure, increasing maintenance costs. These defects seriously restrict the convenience and flexibility of the book anti-theft alarm monitoring instrument.

[0004] For the related technologies in the above, the inventor believes that the anti-theft alarm monitoring instrument has the defect of blocking large-volume objects when in use, therefore, the book anti-theft alarm monitoring instrument is proposed to solve the above problems. CONTENT OF THE INVENTION

[0005] In order to solve the problem that the anti-theft alarm monitoring instrument blocks large-volume objects when in use, the present application provides a book anti-theft alarm monitoring instrument.

[0006] The book anti-theft alarm monitoring instrument provided by the present application adopts the following technical solution:

[0007] The book anti-theft alarm monitoring instrument comprises a supporting base, an alarm host is symmetrically arranged on the upper surface of the supporting base, a detection door is connected to the upper surface of the alarm host, guide limiting grooves are formed at the front and rear ends of the alarm host, a placing slot is formed in the middle of the bottom end of the detection door, limiting protrusions are fixedly connected to the inner walls of the placing slot at the front and rear ends, limiting blocks are symmetrically welded to the bottom of one side of the detection door, a limiting hole is formed in the middle of one side of the limiting block, a fixed inner cavity is formed in the inner top of the alarm host close to the single side of the detection door, limiting rods are movably arranged at the inner walls of the fixed inner cavity at the front and rear ends, and an adjusting mechanism is further arranged in the fixed inner cavity for controlling the movement of the limiting rods.

[0008] Preferably, the adjusting mechanism comprises a limiting screw threadedly connected to the upper surface of the alarm host and extending into the fixed inner cavity, a connecting piece rotatably installed at the bottom end of the limiting screw, and a movable supporting rod rotatably installed at the front and rear ends of the connecting piece.

[0009] Preferably, through holes are formed through the front and rear ends of the inner wall of the fixed inner cavity, the outer diameter of the limiting rod is smaller than the inner diameter of the through hole, and the outer surface of the limiting rod is located inside the through hole.

[0010] Preferably, the outer diameter of the limiting rod is smaller than the inner diameter of the limiting hole, the limiting rod extends into the limiting hole through the alarm host, and the limiting rod and the limiting hole are mutually clamped.

[0011] Preferably, the placement clamping groove is movably clamped at the middle position of the outer surface of the alarm host, the limiting protrusion is located inside the guide limiting groove, and the guide limiting groove and the limiting protrusion are mutually adapted.

[0012] In summary, the present application has the following beneficial technical effects:

[0013] 1. The adjusting mechanism controls the movement of the limiting rod, achieving convenient clamping and dismounting of the detection door and the alarm host. When a large volume of goods needs to be detected, the limiting rod is separated from the limiting hole by rotating the limiting screw, so that the detection door can be quickly dismounted to avoid obstruction. When mounting, the reverse operation can be performed, which is simple and convenient to operate and saves time and effort.

[0014] 2. The placement clamping groove is clamped with the alarm host, and the guide limiting groove and the limiting protrusion are adapted, ensuring stable installation of the detection door and facilitating dismounting, thereby improving the flexibility of equipment use. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 is a schematic diagram of the overall structure of the application embodiment;

[0016] Fig. 2 is a schematic diagram of the structure of the detection door in the application embodiment;

[0017] Fig. 3 is a schematic diagram of the internal structure of the fixed inner cavity in the application embodiment;

[0018] BRIEF DESCRIPTION OF DRAWINGS 1. support base; 2. alarm host; 3. detection door; 4. guide limiting groove; 5. placement clamping groove; 6. limiting protrusion; 7. limiting block; 8. limiting hole; 9. fixed inner cavity; 10. limiting screw; 11. connecting piece; 12. movable supporting rod; 13. connecting seat; 14. limiting rod. DETAILED DESCRIPTION

[0019] The application will be further described below with reference to the accompanying drawings. Figs. 1-3 The application will be further described below with reference to the accompanying drawings.

[0020] The application discloses a book theft alarm monitoring instrument. Referring to Figs. 1-3 , the book theft alarm monitoring instrument comprises a support base 1, an alarm host 2 symmetrically arranged on the upper surface of the support base 1, a detection door 3 clamped on the upper surface of the alarm host 2, guide limiting grooves 4 formed at the front and rear ends of the alarm host 2, a placing clamping groove 5 formed at the middle part of the bottom end of the detection door 3, limiting protrusions 6 fixedly connected to the inner walls of the front and rear ends of the placing clamping groove 5, the placing clamping groove 5 being movably clamped at the middle position of the outer surface of the alarm host 2, the limiting protrusions 6 being located inside the guide limiting grooves 4, the guide limiting grooves 4 and the limiting protrusions 6 being mutually adapted, limiting blocks 7 symmetrically welded to the bottom of one side of the detection door 3, a limiting hole 8 formed at the middle part of one side of the limiting block 7, a fixed inner cavity 9 formed at the inner top of the alarm host 2 close to the single side of the detection door 3, limiting rods 14 movably arranged at the inner walls of the front and rear ends of the fixed inner cavity 9, an adjusting mechanism further arranged inside the fixed inner cavity 9 and used for controlling the movement of the limiting rods 14, through holes formed at the inner walls of the front and rear ends of the fixed inner cavity 9, the outer diameter of the limiting rods 14 being smaller than the inner diameter of the through holes, the outer surface of one side of the limiting rods 14 being located inside the through holes, the outer diameter of the limiting rods 14 being smaller than the inner diameter of the limiting hole 8, one end of the limiting rods 14 extending to the inside of the limiting hole 8 through the alarm host 2, and the limiting rods 14 and the limiting hole 8 being mutually clamped.

[0021] By aligning the placing clamping groove 5 of the detection door 3 with the alarm host 2, the limiting protrusions 6 are inserted into the guide limiting grooves 4, preliminary positioning is realized, the limiting rods 14 are inserted into the limiting hole 8 of the limiting block 7, the clamping of the detection door 3 and the alarm host 2 is completed, and the stable installation of the detection door 3 is ensured.

[0022] Referring to Fig. 2 and Fig. 3 , the adjusting mechanism comprises a limiting screw rod 10, the limiting screw rod 10 being threadedly connected to the upper surface of the alarm host 2 and extending to the inside of the fixed inner cavity 9, a connecting piece 11 rotatably mounted at the bottom end of the limiting screw rod 10, movable supporting rods 12 rotatably mounted at the front and rear ends of the connecting piece 11, a connecting support 13 rotatably mounted at the bottom of one end of the movable supporting rods 12, and the connecting support 13 being fixedly connected to one end of the limiting rods 14.

[0023] By rotating the limiting screw rod 10, the limiting screw rod 10 moves in the fixed inner cavity 9, the connecting piece 11 is synchronously moved, the movable supporting rods 12 and the connecting support 13 are rotated, the connecting support 13 drives the limiting rods 14 to move.

[0024] The implementation principle of the book anti-theft alarm monitoring instrument is as follows: when the detection door 3 is installed, the placing clamping groove 5 of the detection door 3 is aligned with the alarm host 2, the limiting convex strip 6 is inserted into the guiding limiting groove 4, preliminary positioning is realized. Then the limiting screw 10 is rotated, the limiting screw 10 moves in the fixed inner cavity 9, drives the connecting piece 11 to move synchronously, through the rotation of the movable supporting rod 12 and the connecting support 13, the limiting rod 14 is inserted into the limiting hole 8 of the limiting block 7, the clamping of the detection door 3 and the alarm host 2 is completed, and the stable installation of the detection door 3 is ensured.

[0025] When a large volume of articles needs to pass through, the limiting screw 10 is reversely rotated, the limiting rod 14 is separated from the limiting hole 8, at this time, the detection door 3 can be disassembled from the alarm host 2, and the blocking of the articles is avoided. Through the structural design, the convenient disassembly and assembly of the detection door 3 are realized, the problems that the existing monitoring instrument blocks large volume articles and is time-consuming and labor-consuming in disassembly and assembly are solved, and the convenience and flexibility in use are improved.

[0026] Finally, the following points should be explained: first, in the description of the application, it should be pointed out that, unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0027] Secondly: the utility model discloses the embodiment in the drawing, only relate to the structure involved in the embodiment of the present disclosure, other structures can refer to the usual design, in the case where there is no conflict, the same embodiment and different embodiments of the utility model can be combined with each other;

[0028] Finally: the above only for the preferred embodiment of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement etc.

[0029] The above are the preferred embodiments of the application, and are not used to limit the protection scope of the application, so: any equivalent change made according to the structure, shape, principle of the application should be covered in the protection scope of the application.

Claims

1. A book anti-theft alarm monitoring device, comprising a support base (1), wherein an alarm host (2) is symmetrically arranged on the upper surface of the support base (1), and a detection door (3) is snapped onto the upper surface of the alarm host (2), characterized in that: The alarm host (2) is provided with a guide limiting groove (4) at both ends, the detection door (3) is provided with a placing clamping groove (5) at the middle of the bottom, the inner wall of the placing clamping groove (5) is fixedly connected with a limiting convex strip (6) at both ends, the detection door (3) is symmetrically welded with a limiting block (7) at the bottom of one side, the limiting block (7) is provided with a limiting hole (8) at the middle of one side, the alarm host (2) is provided with a fixed inner cavity (9) near the single side of the detection door (3) at the top, the inner wall of the fixed inner cavity (9) is movably provided with a limiting rod (14) at both ends, and the fixed inner cavity (9) is further provided with an adjusting mechanism for controlling the movement of the limiting rod (14).

2. The book anti-theft alarm monitor according to claim 1, characterized in that: The adjusting mechanism comprises a limiting screw rod (10), the limiting screw rod (10) is threadedly connected to the upper surface of the alarm host (2) and extends into the fixed inner cavity (9), the limiting screw rod (10) is rotatably connected with a connecting piece (11) at the bottom, the connecting piece (11) is rotatably connected with a movable supporting rod (12) at both ends, the movable supporting rod (12) is rotatably connected with a connecting support (13) at one end of the bottom, and the connecting support (13) is fixedly connected with the limiting rod (14) at one end of the middle.

3. The book theft alarm monitor according to claim 1, characterized in that: The inner wall of the fixed inner cavity (9) is provided with a through hole at both ends, the outer diameter of the limiting rod (14) is smaller than the inner diameter of the through hole, and one side of the outer surface of the limiting rod (14) is located in the through hole.

4. The book theft alarm monitor according to claim 1, characterized in that: The outer diameter of the limiting rod (14) is smaller than the inner diameter of the limiting hole (8), one end of the limiting rod (14) extends into the limiting hole (8) through the alarm host (2), and the limiting rod (14) and the limiting hole (8) are clamped with each other.

5. The book theft alarm monitor according to claim 1, characterized in that: The placing clamping groove (5) is movably clamped at the middle position of the outer surface of the alarm host (2), the limiting convex strip (6) is located in the guide limiting groove (4), and the guide limiting groove (4) and the limiting convex strip (6) are matched with each other.

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