Security and protection device capable of being quickly disassembled and assembled

Abstract

The utility model discloses a security and protection device capable of being quickly assembled and disassembled, which comprises an installation support and a detector, the detector comprises a base, a shell arranged at the top end of the base and a control panel assembly arranged in the shell, and the bottom end of the base is used for being matched with the top end of the installation support. The control panel assembly partially extends out of the shell and is arranged at the bottom in the base, a first mounting groove is formed in the top end of the mounting support, an elastic arm is arranged in the first mounting groove, and one end of the elastic arm is bent in the direction close to the center of the mounting support and connected with the inner wall of the side, close to the center of the mounting support, of the first mounting groove. The other end of the elastic arm is arranged obliquely downwards in the direction away from the center of the mounting support, a key groove communicated with the first mounting groove is formed in one end of the mounting support, a key is arranged in the key groove, one end of the key extends into the first mounting groove and abuts against the other end of the elastic arm, and a first buckle is arranged at the bottom end of the base. According to the utility model, the detector can be quickly and conveniently disassembled and assembled.

Description

TECHNICAL FIELD

[0001] The utility model relates to the security technology field, concretely relates to a security device of quick dismounting. BACKGROUND

[0002] The existing security device generally includes mounting support and detector, and the detector is smoke alarm, carbon monoxide alarm, temperature sensing detector, infrared detector etc., when installing the security device, generally first place the mounting support on the wall, ceiling etc., then install the screw on the multiple support mounting holes of mounting support and wall or ceiling etc., to install the mounting support on the wall, ceiling etc., then cooperate the bottom end of the base of detector with the top end of mounting support and install the screw in the multiple base mounting hole of base and the support mounting hole of corresponding mounting support, then install the anti-disassembly pin in the base anti-disassembly hole of base and the support anti-disassembly hole of mounting support, so that the detector is installed on the mounting support, and the security device is installed, when needing to replace new detector or needing to overhaul the detector, first dismount the anti-disassembly pin from the base anti-disassembly hole and the support anti-disassembly hole, then dismount the screw from the base mounting hole and the corresponding support mounting hole, then take down the detector from the mounting support, and then replace the new detector or overhaul the detector. The security device with the structure needs the auxiliary tool such as screwdriver to complete the installation of screw and anti-disassembly pin during the dismounting of detector, so that the dismounting of detector is complicated and slow, and the labor intensity is increased, and the work efficiency is reduced. SUMMARY

[0003] In order to overcome the defects of the prior art, the utility model provides a security device of quick dismounting, which can quickly and conveniently dismount the detector, reduces the labor intensity, and improves the work efficiency.

[0004] The utility model solves the technical scheme that the technical scheme adopts:

[0005] The security device can be quickly assembled and disassembled, comprising a mounting bracket and a detector, the detector comprising a base, a shell arranged at the top end of the base, and a control board assembly arranged in the shell, the bottom end of the base being used to cooperate with the top end of the mounting bracket, the control board assembly partially extending out of the shell and being arranged at the bottom of the base, the top end of the mounting bracket being provided with a first mounting groove, the first mounting groove being provided with an elastic arm, one end of the elastic arm being bent towards the center of the mounting bracket and being connected with the inner wall of the side of the first mounting groove close to the center of the mounting bracket, the other end of the elastic arm being inclined downward away from the center of the mounting bracket, one end of the mounting bracket being provided with a key groove in communication with the first mounting groove, the key groove being provided with a key, one end of the key extending into the first mounting groove and abutting against the other end of the elastic arm, the key being movable towards or away from the center of the mounting bracket, the bottom end of the base being provided with a first buckle, the first buckle being used to be inserted into the first mounting groove, the end of the first buckle being provided with a first clamping hook used to clamp the other end of the elastic arm, the top end of the mounting bracket being provided with a second mounting groove arranged opposite to the first mounting groove, the bottom of the second mounting groove being provided with a mounting piece, the top end of the mounting piece being formed with an arc-shaped portion, the bottom end of the base being provided with a rotating shaft, the rotating shaft being used to rotate with the arc-shaped portion.

[0006] As a preferred technical scheme, the key comprises a key body and a force applying piece, the key groove comprises a first part and a second part in communication with each other, the second part is in communication with the first mounting groove and has a size larger than that of the first part, the key body is arranged in the first part, the force applying piece is arranged in the second part, one end of the key body protrudes from one end of the mounting bracket, the other end of the key body is connected with one end of the force applying piece, one end of the force applying piece abuts against the inner wall of the second part close to the first part, the other end of the force applying piece is provided with two first force applying portions arranged opposite to each other, one end of the two first force applying portions extends into the first mounting groove and abuts against the other end of the elastic arm, when the first buckle is inserted into the first mounting groove, the first buckle is located between one end of the two first force applying portions.

[0007] As a preferred technical scheme, the other end of the force applying piece is provided with a second force applying portion, the second force applying portion is located between the two first force applying portions, one end of the second force applying portion abuts against the other end of the elastic arm, the end of the first buckle is provided with a buckle avoiding groove used to avoid one end of the second force applying portion.

[0008] Preferably, the inner wall of the top end of the second part is provided with a first guide part, the distal end of the first guide part is provided with a key guide groove, the key guide groove is matched with the second force applying part; the inner wall of the top end of the second part is provided with a second guide part, one end of the second guide part is connected with the first guide part, the other end of the second guide part is connected with the inner wall of the end of the second part close to the first part, the top end of the force applying piece is provided with a force applying guide groove, and the force applying guide groove is matched with the second guide part.

[0009] Preferably, the other end of the elastic arm is provided with two elastic arm buckles, the two elastic arm buckles correspond to the two first force applying parts respectively, and one end of the two first force applying parts respectively abuts against the two elastic arm buckles.

[0010] Preferably, the bottom end of the base is provided with two first connecting pieces oppositely arranged, the rotating shaft is arranged between the distal ends of the two first connecting pieces, the bottom end of the base is provided with a hole position, one end of the second connecting piece extends into the hole position and is connected with the inner walls on both sides of the hole position, the other end of the second connecting piece is connected with the rotating shaft, and the arc-shaped part and the mounting piece are provided with a mounting avoiding groove for avoiding the second connecting piece.

[0011] Preferably, the end of the arc-shaped part away from the mounting piece is provided with a clamping block, and the clamping block is used for clamping the rotating shaft.

[0012] Preferably, the bottom of the mounting support is provided with two support pieces which are symmetrical about the center of the mounting support, one end of each of the two support pieces is connected with the inner wall on one side of the mounting support, and the line between the two support pieces crosses the line between the first mounting groove and the second mounting groove; the top end of the support piece is provided with a first mounting position which is in communication with the inside of the support piece, the inner wall on one side of the first mounting position is provided with a clamping piece, the clamping piece is partially located in the support piece, the bottom end of the base is provided with a second mounting position corresponding to the support piece, the inner wall on one side of the second mounting position is provided with a second buckle, the second buckle partially protrudes from the bottom end of the base, the part of the second buckle protruding from the bottom end of the base is used for being inserted into the first mounting position of the corresponding support piece and the corresponding support piece, and the distal end of the second buckle has a second hook which is used for clamping the clamping piece of the corresponding support piece.

[0013] Preferably, the top end of the support piece is provided with two positioning grooves oppositely arranged, the first mounting position is located between and in communication with the two positioning grooves, the two sides of the second buckle are respectively provided with two first positioning pieces, the two first positioning pieces are arranged at the bottom end of the base respectively, and the two first positioning pieces are respectively used for matching the two positioning grooves of the corresponding support piece.

[0014] As a preferred technical scheme, two second positioning members are respectively arranged at the bottom end of the base and are respectively used for contacting two sides of the corresponding support member.

[0015] The utility model discloses the beneficial effect is: the utility model discloses through the button, elastic arm, mounting and arc part that are set up on the mounting bracket and through the first buckle and pivot that are set up on the base, does not need to help for example screwdriver etc. auxiliary tool in the process of detector dismounting, and dismounting is quick, convenient, reduces the manual labor intensity, improves work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model is further illustrated below in connection with the drawings and examples.

[0017] Figure 1 It is the first angle structure schematic drawing of security device that an embodiment of the utility model provides can quickly dismounts;

[0018] Figure 2 It is Figure 1 The second angle structure schematic drawing of security device shown in figure 2;

[0019] Figure 3 It is Figure 1 The structure schematic drawing of mounting bracket, base, first buckle subassembly, pivot subassembly and two second buckle subassembly of security device shown in figure 3;

[0020] Figure 4 It is Figure 3 The overhead schematic drawing of mounting bracket, base, first buckle subassembly, pivot subassembly and two second buckle subassembly of security device shown in figure 3;

[0021] Figure 5 It is Figure 4 The section view schematic drawing of A-A shown in figure 4;

[0022] Figure 6 It is Figure 4 The section view schematic drawing of B-B shown in figure 5;

[0023] Figure 7 It is Figure 1 The structure schematic drawing of mounting bracket and button of security device shown in figure 6 is in overhead angle;

[0024] Figure 8 It is Figure 1 The structure schematic drawing of mounting bracket and button of security device shown in figure 6 is in overhead angle;

[0025] Figure 9 It is Figure 8a local enlarged view of the indicated a;

[0026] Figure 10 is Figure 1 a structural schematic view of a mounting bracket of the security device shown;

[0027] Figure 11 is Figure 10 a top view schematic view of the mounting bracket shown;

[0028] Figure 12 is Figure 11 a sectional view schematic view of the C-C shown;

[0029] Figure 13 is Figure 1 a structural schematic view of a key of the security device shown;

[0030] Figure 14 is Figure 1 a structural schematic view of a first angle of a base of the security device shown;

[0031] Figure 15 is Figure 1 a structural schematic view of a second angle of a base of the security device shown;

[0032] Figure 16 is Figure 1 a structural schematic view of a third angle of a base of the security device shown.

[0033] Reference signs:

[0034] 10, mounting bracket; 10a, bracket mounting hole; 11, first mounting groove; 12, key groove; 12a, first part; 12b, second part; 121, first guide part; 1211, key guide groove; 123, second guide part; 13, second mounting groove; 131, second bracket groove; 131, bracket hole; 14, support piece; 141, first mounting position; 142, positioning groove;

[0035] 20, detector; 21, main body; 22, base; 221, hole position; 222, base groove; 223, connecting block; 224, second mounting position; 23, control board assembly;

[0036] 31, key; 311, key body; 312, force applying piece; 3121, first force applying part; 3122, second force applying part; 3123, force applying guide groove; 32, elastic arm; 321, elastic arm buckle; 33, first buckle; 33a, first clamping hook; 331, buckle avoiding groove;

[0037] 41, mounting piece; 411, arc-shaped part; 412, mounting avoiding groove; 413, clamping block; 42, rotating shaft; 421, first connecting piece; 422, second connecting piece;

[0038] 51, engaging member; 52, second buckle; 52a, second hook; 521, first positioning member; 522, second positioning member. DETAILED DESCRIPTION

[0039] The concept, specific structure and technical effects of the present application will be described clearly and completely in combination with the embodiments and drawings, so as to fully understand the purpose, features and effects of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments of the present application, other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application. In addition, all the coupling / connection relationships involved in the patent do not mean that the components are directly connected, but that a better coupling structure can be formed by adding or reducing coupling accessories according to the specific implementation situation. The various technical features in the present application can be combined interactively without mutual contradiction and conflict.

[0040] Please refer to Figures 1 to 6 The present application provides a security device which can be quickly disassembled and assembled, comprising a mounting bracket 10 and a detector 20.

[0041] The bottom end of the mounting bracket 10 is provided with a plurality of, for example, two bracket mounting holes 10a. As shown in Figure 7 The mounting bracket 10 is used to be mounted on, for example, a wall, a ceiling, etc. through the bracket mounting holes 10a, screws, etc. It can be understood that the number of bracket mounting holes 10a can be set according to the actual situation.

[0042] In this embodiment, the detector 20 is a smoke alarm, a carbon monoxide alarm, a temperature sensor, an infrared sensor, etc.

[0043] The detector 20 comprises a shell 21, a base 22, and a control board assembly 23 arranged in the shell 21. The shell 21 is arranged at the top end of the base 22, and the bottom end of the base 22 is used to cooperate with the top end of the mounting bracket 10. The control board assembly 23 partially extends out of the shell 21 and is arranged at the bottom of the base 22. The detector 20 and the control board assembly 23 are both existing structures. The control board assembly 23 mainly comprises a PCB board, a sensor, an alarm, etc. The structure and working principle thereof will not be described here.

[0044] In combination with Figures 7 to 16As shown, the top end of the mounting bracket 10 is provided with a first mounting slot 11 near one end of the mounting bracket 10, and an elastic arm 32 is arranged in the first mounting slot 11. One end of the elastic arm 32 is bent towards the center of the mounting bracket 10 and connected to the inner wall of the side of the first mounting slot 11 near the center of the mounting bracket 10, and the other end of the elastic arm 32 is inclined downward away from the center of the mounting bracket 10. This structure allows the elastic arm 32 to elastically deform. One end of the mounting bracket 10 is provided with a key slot 12 communicating with the first mounting slot 11, and a key 31 is arranged in the key slot 12. One end of the key 31 extends into the first mounting slot 11 and abuts against the other end of the elastic arm 32. The key 31 can move towards or away from the center of the mounting bracket 10.

[0045] The bottom end of the base 22 is provided with a first buckle 33 near one end of the base 22, which is used to be inserted into the first mounting slot 11. The end of the first buckle 33 has a first clamping hook 33a for clamping the other end of the elastic arm 32.

[0046] The top end of the mounting bracket 10 is provided with a second mounting slot 13 opposite the first mounting slot 11, which extends to the other end of the mounting bracket 10. The bottom of the second mounting slot 13 is provided with a mounting piece 41, and the top end of the mounting piece 41 is formed with an arc-shaped portion 411 by bending. The bottom end of the base 22 is provided with a rotating shaft 42 near the other end of the base 22, which is used to rotate with the arc-shaped portion 411.

[0047] Through the above structure, when the security device of the utility model is actually installed, the mounting bracket 10 is first installed on the wall, ceiling, etc., and then the rotating shaft 42 on the base 22 of the detector 20 is placed in the second mounting slot 13 and matched with the arc-shaped portion 411. Then, taking the rotating shaft 42 as a fulcrum, the base 22 is rotated towards the mounting bracket 10 to insert the first buckle 33 into the first mounting slot 11 and make the first clamping hook 33a clamped with the other end of the elastic arm 32. In this way, the base 22 is installed on the mounting bracket 10, and the security device is installed. Figures 3 to 5When it is necessary to replace the detector 20 or to perform maintenance operation on the detector 20, the button 31 is pressed towards the center of the mounting bracket 10 first, so that the button 31 moves towards the center of the mounting bracket 10, the movement of the button 31 can push the other end of the elastic arm 32 to move towards the center of the mounting bracket 10, until the first clamping hook 33a of the first clamping buckle 33 is separated from the other end of the elastic arm 32, at this time the elastic arm 32 is elastically deformed, then the base 22 is rotated away from the mounting bracket 10 with the pivot 42 as the fulcrum to move the first clamping buckle 33 out of the first mounting groove 11, then the button 31 is released, and under the elastic force of the elastic arm 32, the other end of the elastic arm 32 can drive the button 31 to move away from the center of the mounting bracket 10 to the initial position, then the pivot 42 on the base 22 is separated from the arc-shaped part 411 and the pivot 42 is moved out of the second mounting groove 12, so that the detector 20 is disassembled from the mounting bracket 10, and then a new detector 20 can be replaced or maintenance operation can be performed on the detector 20.

[0048] The button 31, the elastic arm 32, the mounting piece 41 and the arc-shaped part 411 arranged on the mounting bracket 10 and the first clamping buckle 33 and the pivot 42 arranged on the base 22, so that during the disassembly and assembly of the detector 20, auxiliary tools such as screwdrivers are not needed, the disassembly and assembly are quick and convenient, the labor intensity is reduced, and the work efficiency is improved.

[0049] In the embodiment, the key 31 comprises a key body 311 and a force applying member 312. The key slot 12 comprises a first part 12a and a second part 12b which are communicated with each other, the second part 12b is communicated with the first mounting slot 11 and the length and width dimensions of the second part 12b are greater than those of the first part 12a. The size and shape of the key body 311 are adapted to the first part 12a, the key body 311 is arranged in the first part 12a, the size and shape of the force applying member 312 are adapted to the second part 12b, the force applying member 312 is arranged in the second part 12b, one end of the key body 311 protrudes from one end of the mounting bracket 10, facilitating pressing the key body 311, the other end of the key body 311 is connected with one end of the force applying member 312, one end of the force applying member 312 abuts against the inner wall of the second part 12b which is close to the first part 12a, the other end of the force applying member 312 is provided with two first force applying parts 3121 which are oppositely arranged, one end of the two first force applying parts 3121 extends into the first mounting slot 11 and abuts against the other end of the elastic arm 32, when the first buckle 33 is inserted into the first mounting slot 11, the first buckle 33 is located between one end of the two first force applying parts 3121. By pressing the key body 311 towards the direction close to the center of the mounting bracket 10, the key body 311 can be moved towards the direction close to the center of the mounting bracket 10, thus the force applying member 312 and the two first force applying parts 3121 can be moved towards the direction close to the center of the mounting bracket 10, and then the other end of the elastic arm 32 can be pushed towards the direction close to the center of the mounting bracket 10 by the two first force applying parts 3121. When the key body 311 is released, the two first force applying parts 3121 can be moved towards the direction away from the center of the mounting bracket 10 to the initial position by the other end of the elastic arm 32 under the elastic force of the elastic arm 32, thus the force applying member 312 and the key body 311 can be moved towards the direction away from the center of the mounting bracket 10 to the initial position, at this time, one end of the key body 311 protrudes from one end of the mounting bracket 10, one end of the force applying member 312 abuts against the inner wall of the second part 12b which is close to the first part 12a, thus the key 31 will not be separated from the key slot 12.

[0050] The other end of the force applying member 312 is provided with a second force applying part 3122, which is located between the two first force applying parts 3121, and one end of the second force applying part 3122 abuts against the other end of the elastic arm 32. The end of the first buckle 33 is provided with a buckle avoiding slot 331 for avoiding the one end of the second force applying part 3122. When the key body 311 moves towards the center of the mounting bracket 10, the key body 311 can drive the force applying member 312, the two first force applying parts 3121 and the second force applying part 3122 to move towards the center of the mounting bracket 10, so that the two first force applying parts 3121 and the second force applying part 3122 can jointly push the other end of the elastic arm 32 to move towards the center of the mounting bracket 10, thereby increasing the force for pushing the other end of the elastic arm 32 to move towards the center of the mounting bracket 10, so that the other end of the elastic arm 32 can quickly separate from the first clamping hook 33a of the first buckle 33. When the key body 311 is released, the other end of the elastic arm 32 can drive the two first force applying parts 3121 and the second force applying part 3122 to move away from the center of the mounting bracket 10 to the initial position under the elastic force of the elastic arm 32, so that the two first force applying parts 3121 and the second force applying part 3122 can drive the force applying member 312 and the key body 311 to move away from the center of the mounting bracket 10 to the initial position.

[0051] The key body 311, the force applying member 312, the two first force applying parts 3121 and the second force applying part 3122 are preferably integrally formed, which is convenient for manufacturing.

[0052] Further, the inner wall of the top end of the second part 12b is provided with a first guide part 121, and the end of the first guide part 121 is provided with a key guide slot 1211, which cooperates with the second force applying part 3122. The inner wall of the top end of the second part 12b is provided with a second guide part 123, one end of the second guide part 123 is connected with the first guide part 121, and the other end of the second guide part 123 is connected with the inner wall of the end of the second part 12b close to the first part 12a. The top end of the force applying member 312 is provided with a force applying guide slot 3123, which cooperates with the second guide part 123. The key guide slot 1211 is arranged to guide the movement of the second force applying part 3122, so as to ensure the stability and linearity of the movement of the first force applying part 3121 and the second force applying part 3122. The second guide part 123 and the force applying guide slot 3123 are arranged to guide the movement of the force applying member 312, so as to ensure the stability and linearity of the movement of the force applying member 312, thereby ensuring the stability and linearity of the movement of the key 31.

[0053] The other end of the elastic arm 32 is provided with two elastic arm buckles 321 corresponding to the two first force applying parts 3121, and the first buckle 33 is located between the two elastic arm buckles 321 when the first buckle 33 is inserted into the first mounting groove 11, and one end of the two first force applying parts 3121 abuts against the two elastic arm buckles 321, respectively. The two elastic arm buckles 321 can increase the contact area between one end of the two first force applying parts 3121 and the other end of the elastic arm 32, facilitate the movement of the other end of the elastic arm 32 towards the center of the mounting support 10 by the two first force applying parts 3121, and facilitate the movement of the two first force applying parts 3121 away from the center of the mounting support 10 by the other end of the elastic arm 32 to the initial position.

[0054] Further, the arc-shaped part 411 is provided with a clamping block 413 at the end away from the mounting part 41, and the clamping block 413 is used to clamp the rotating shaft 42. After the rotating shaft 42 cooperates with the arc-shaped part 411, the clamping block 413 can clamp the rotating shaft 42, so that the rotating shaft 42 and the arc-shaped part 411 can be prevented from being separated. In the embodiment, the clamping block 413 is four, and the four clamping blocks 413 are arranged at intervals along the length direction of the arc-shaped part 411. It can be understood that the number of the clamping block 413 can be arranged according to actual conditions.

[0055] In the embodiment, the bottom end of the mounting support 10 is provided with a first support groove at the positions corresponding to the key groove 12 and the first mounting groove 11, and the first support groove is in communication with the key groove 12 and the first mounting groove 11. The bottom end of the mounting support 10 is provided with a second support groove 131 at the position corresponding to the second mounting groove 13, and the bottom of the second mounting groove 13 is provided with two support holes 132 arranged at intervals and in communication with the second support groove 131. The first support groove, the second support groove 131 and the support holes 132 can reduce the weight of the mounting support 10, and facilitate the installation of the mounting support 10 on the wall, the ceiling or the like.

[0056] In the embodiment, the bottom end of the base 22 is provided with two first connecting parts 421 arranged oppositely at the position close to the other end of the base 22, and the rotating shaft 42 is arranged between the two ends of the two first connecting parts 421. The bottom end of the base 22 is provided with a hole site 221, and one end of the second connecting part 422 extends into the hole site 221 and is connected with the inner walls of the hole site 221 on both sides, as shown in Figure 3As shown, the other end of the second connecting piece 422 is connected with the rotating shaft 42, and the arc-shaped part 411 and the mounting part 41 are provided with mounting avoiding grooves 412 for avoiding the second connecting piece 422. The second connecting piece 422 arranged supports the rotating shaft 42, avoiding the bending deformation of the rotating shaft 42. The bottom of the base 22 is provided with a base groove 222 in communication with the hole position 221, and the bottom of the base groove 222 is provided with a connecting block 223 connected with one end of the second connecting piece 422, so as to support the second connecting piece 422.

[0057] Further, the bottom of the mounting bracket 10 is provided with two support parts 14 symmetrically arranged about the center of the mounting bracket 10, and one end of each of the two support parts 14 is connected with the inner wall of the two sides of the mounting bracket 10, and the connecting line between the two support parts 14 is cross-shaped with the connecting line between the first mounting groove 11 and the second mounting groove 13.

[0058] The top end of the support part 14 is provided with a first mounting position 141 in communication with the inside of the support part 14, and the inner wall of one side of the first mounting position 141, for example, the inner wall of the side close to the center of the mounting bracket 10, is provided with a clamping piece 51 partially arranged in the support part 14, for example, as shown. Figure 6 The bottom end of the base 22 is provided with a second mounting position 224 corresponding to the support part 14, for example, as shown. Figure 3 The inner wall of one side of the second mounting position 224, for example, the inner wall of the side away from the center of the base 22, is provided with a second buckle 52 in a U shape partially protruding from the bottom end of the base 22, and the part of the second buckle 52 protruding from the bottom end of the base 22 is used for being inserted into the first mounting position 141 of the corresponding support part 14 and the corresponding support part 14, and the end of the second buckle 52 has a second clamping hook 52a used for clamping the clamping piece 51 of the corresponding support part 14. In the process of installing the security device of the utility model, after the rotating shaft 42 on the base 22 of the detector 20 is placed in the second mounting groove 13 and the rotating shaft 42 is matched with the arc-shaped part 411, the second buckle 52 is first inserted into the first mounting position 141 of the corresponding support part 14 and the corresponding support part 141, and the second clamping hook 52a of the second buckle 52 is clamped with the clamping piece 51 of the corresponding support part 14, and then the first buckle 33 is inserted into the first mounting groove 11, and the first clamping hook 33a is clamped with the other end of the elastic arm 32. In the process of dismounting the detector 20 from the mounting bracket 10, after the release button 31 is released, the base 22 is continuously rotated, so that the second clamping hook 52a of the second buckle 52 is separated from the clamping piece 51 of the corresponding support part 14, and the second buckle 52 is moved out of the first mounting position 141 of the corresponding support part 14 and the inside of the corresponding support part 14. Through the arrangement of the clamping piece 51 and the second buckle 52, the stability of the connection between the base 22 and the mounting bracket 10 can be improved.

[0059] In the embodiment, the engaging members 51 are multiple, for example, two, and the two engaging members 51 are arranged at intervals along the length direction of the first mounting position 141. Understandably, the number of the engaging members 51 can be arranged according to actual conditions. The bottom end of the mounting bracket 10 is provided with a third bracket slot corresponding to the support member 14, and the third bracket slot is in communication with the inside of the corresponding support member 14. The third bracket slot can reduce the weight of the mounting bracket 10, and facilitate the mounting of the mounting bracket 10 on, for example, a wall surface, a ceiling, etc.

[0060] Further, the top end of the support member 14 is provided with two oppositely arranged positioning grooves 142, and the first mounting position 141 is located between the two positioning grooves 142 and is in communication with the two positioning grooves 142, respectively. The two sides of the second buckle 52 are respectively provided with two first positioning members 521, and the two first positioning members 521 are arranged at the bottom end of the base 22, respectively. The two first positioning members 521 are respectively used for cooperating with the two positioning grooves 142 of the corresponding support member 14. The ends of the two first positioning members 521 away from the second buckle 52 are respectively provided with two second positioning members 522, and the first positioning member 521 and the corresponding second positioning member 522 form an L-shaped structure. The two second positioning members 522 are arranged at the bottom end of the base 22, respectively, and the two second positioning members 522 are respectively used for contacting the two sides of the corresponding support member 14. After the shaft 42 on the base 22 of the detector 20 is placed in the second mounting slot 13 and the shaft 42 cooperates with the arc-shaped portion 411, the two first positioning members 521 are first cooperated with the two positioning grooves 142 of the corresponding support member 14, respectively, and the two second positioning members 522 are respectively contacted with the two sides of the corresponding support member 14. In this way, the position of the base 22 can be positioned, so that the installation of the base 22 is more convenient and fast. Then, the second buckle 52 is inserted into the first mounting position 141 of the corresponding support member 14 and the corresponding support member 14, and the second clamping hook 52a of the second buckle 52 is clamped with the engaging member 51 of the corresponding support member 14.

[0061] The above is a specific description of the preferred embodiment of the present application, but the present application is not limited to the above-mentioned embodiment. Those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the present application. These equivalent modifications or replacements are all included in the scope defined by the claims of the present application.

Claims

1. A quick-assembly and detachable security device, comprising a mounting bracket and a detector, the detector comprising a base, a housing disposed at the top of the base, and a control board assembly disposed within the housing, the bottom end of the base for engaging with the top end of the mounting bracket, the control board assembly partially extending beyond the housing and disposed at the bottom of the base, characterized in that, The top end of the mounting bracket is provided with a first mounting slot, and an elastic arm is arranged in the first mounting slot. One end of the elastic arm is bent towards the center of the mounting bracket and connected with the inner wall of the side of the first mounting slot close to the center of the mounting bracket. The other end of the elastic arm is obliquely arranged downwards away from the center of the mounting bracket. One end of the mounting bracket is provided with a key slot in communication with the first mounting slot. A key is arranged in the key slot. One end of the key extends into the first mounting slot and abuts against the other end of the elastic arm. The key is movable towards or away from the center of the mounting bracket. The bottom end of the base is provided with a first buckle for insertion into the first mounting slot. The end of the first buckle is provided with a first clamping hook for clamping the other end of the elastic arm. The top end of the mounting bracket is provided with a second mounting slot opposite to the first mounting slot. The bottom of the second mounting slot is provided with a mounting piece. The top end of the mounting piece is formed with an arc-shaped portion. The bottom end of the base is provided with a rotating shaft for rotating cooperation with the arc-shaped portion.

2. The security device of claim 1, wherein, The key comprises a key body and a force applying piece. The key slot comprises a first part and a second part in communication with each other. The second part is in communication with the first mounting slot and has a longer width than the first part. The key body is arranged in the first part. The force applying piece is arranged in the second part. One end of the key body protrudes from one end of the mounting bracket. The other end of the key body is connected with one end of the force applying piece. One end of the force applying piece abuts against the inner wall of one end of the second part close to the first part. The other end of the force applying piece is provided with two first force applying portions opposite to each other. One end of the two first force applying portions extends into the first mounting slot and abuts against the other end of the elastic arm. When the first buckle is inserted into the first mounting slot, the first buckle is located between one end of the two first force applying portions.

3. The security device of claim 2, wherein the security device is configured to be quickly disassembled by a user. The other end of the force applying piece is provided with a second force applying portion between the two first force applying portions. One end of the second force applying portion abuts against the other end of the elastic arm. The end of the first buckle is provided with a buckle avoiding slot for avoiding one end of the second force applying portion.

4. The security device of claim 3, wherein the security device is configured to be quickly disassembled by a user. The inner wall of the top end of the second part is provided with a first guide portion. The end of the first guide portion is provided with a key guide slot in cooperation with the second force applying portion. The inner wall of the top end of the second part is provided with a second guide portion. One end of the second guide portion is connected with the first guide portion. The other end of the second guide portion is connected with the inner wall of one end of the second part close to the first part. The top end of the force applying piece is provided with a force applying guide slot in cooperation with the second guide portion.

5. The security device of claim 2, wherein the security device is configured to be quickly disassembled by a user. The other end of the elastic arm is provided with two elastic arm buckles corresponding to the two first force applying portions. One end of the two first force applying portions respectively abuts against the two elastic arm buckles.

6. The security device of claim 1, wherein, The bottom end of the base is provided with two first connecting members arranged oppositely, the rotating shaft is arranged between the ends of the two first connecting members, the bottom end of the base is provided with a hole position, one end of the second connecting member extends into the hole position and is connected with the inner walls on both sides of the hole position, the other end of the second connecting member is connected with the rotating shaft, and the arc-shaped part and the mounting member are provided with a mounting avoiding groove for avoiding the second connecting member.

7. The security device of claim 1, wherein, The end of the arc-shaped part away from the mounting member is provided with a clamping block for clamping the rotating shaft.

8. The security device of claim 1, wherein, The bottom of the mounting bracket is provided with two support members symmetrically about the center of the mounting bracket, one end of each of the two support members is connected with the inner wall on one side of the mounting bracket, and the connecting line between the two support members is in a cross shape with the connecting line between the first mounting groove and the second mounting groove. The top end of the support member is provided with a first mounting position in communication with the inside of the support member, the inner wall on one side of the first mounting position is provided with a clamping member, the bottom end of the base is provided with a second mounting position corresponding to the support member, the inner wall on one side of the second mounting position is provided with a second buckle, the second buckle partially protrudes from the bottom end of the base, the part of the second buckle protruding from the bottom end of the base is used for being inserted into the first mounting position of the corresponding support member and the corresponding support member, and the end of the second buckle has a second clamping hook for clamping the clamping member of the corresponding support member.

9. The security device of claim 8, wherein, The top end of the support member is provided with two positioning grooves arranged oppositely, the first mounting position is located between the two positioning grooves and communicates with the two positioning grooves respectively, the two sides of the second buckle are respectively provided with two first positioning members, the two first positioning members are arranged at the bottom end of the base respectively, and the two first positioning members are respectively used for cooperating with the two positioning grooves of the corresponding support member.

10. The security device of claim 9, wherein the security device is configured to be quickly disassembled by a user. The ends of the two first positioning members away from the second buckle are respectively provided with two second positioning members, the two second positioning members are arranged at the bottom end of the base respectively, and the two second positioning members are respectively used for contacting the two sides of the corresponding support member.

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