Detector

Abstract

The utility model discloses a detector. The detector comprises a shell, a rear cover and a sliding cover, the rear cover is arranged on the shell, and the fastener penetrates through the rear cover to fixedly connect the rear cover with the shell; the sliding cover is detachably installed on the rear cover, the rear cover is provided with an installation part for the fastening piece to penetrate through, and the sliding cover covers the installation part and has the movable freedom degree of sliding relative to the installation part in the first direction. By arranging the detachable sliding cover, when the detector is assembled, the mounting part is covered by the sliding cover, so that the fastener for fixing the shell and the rear cover is hidden, the possibility that the fastener is damaged is avoided, and meanwhile, the attractiveness of the detector is improved.

Description

Technical Field

[0001] The present application relates to the field of security technology, and in particular to a detector. Background Art

[0002] In the fields of security and Internet of Things technology, detectors are often needed to detect whether there is human activity in the target detection area. When human activity is detected, the detector will sound an alarm.

[0003] For example, a vibration intrusion detector is a device that can generate an alarm signal for mechanical vibration (impact) caused by intrusion within the detection range. It is generally composed of a vibration sensor and a signal processor. Existing detectors generally connect the housing and the bracket by screws. The bolts used to connect the housing and the bracket are not easy to hide, and some bolts are exposed on the outside of the detector, which makes the bolts easily corroded and affects the aesthetics of the device after assembly. Utility Model Content

[0004] In order to solve the deficiencies of the prior art, the purpose of the present application is to provide a detector that solves the technical problem that bolts used to fix the detector are difficult to hide.

[0005] To achieve the above objectives, this application adopts the following technical solutions:

[0006] A detector comprises a shell, a back cover and a sliding cover; the back cover is mounted on the shell, and a fastener passes through the back cover to fix the back cover to the shell; the sliding cover is detachably mounted on the back cover, and the back cover has a mounting portion for the fastener to pass through, the sliding cover covers the mounting portion, and has the freedom of movement to slide relative to the mounting portion along a first direction.

[0007] Furthermore, the rear cover includes a first limiting guide rail extending along a first direction, the first limiting guide rail is distributed on the left and right sides of the mounting portion, and the sliding cover is provided with a sliding member slidably connected to the first limiting guide rail.

[0008] Furthermore, the back cover also includes a second limit guide rail extending along the second direction, the second limit guide rail is connected to the first limit guide rail, the end of the second limit guide rail facing away from the first limit guide rail has a notch, and the sliding member enters the second limit guide rail through the notch, wherein the angle formed between the first direction and the second direction is greater than 0°.

[0009] Furthermore, the first position-limiting guide rail has a receiving portion communicated with the second position-limiting guide rail, and the receiving portion is located between two ends of the first position-limiting guide rail.

[0010] Furthermore, the detector includes a first magnetic component and a second magnetic component, the first magnetic component is installed on the back cover, and the second magnetic component is installed on the sliding cover. When the sliding cover covers the mounting portion, the sliding cover is adsorbed on the back cover through the cooperation of the first magnetic component and the second magnetic component.

[0011] Furthermore, the mounting portion has a fixing groove for fixing the first magnetic member, the first magnetic member is fixed in the fixing groove, and the second magnetic member is fixedly connected to the sliding cover.

[0012] Furthermore, the detector also includes a fixing bracket, which is installed on a side of the shell away from the rear cover and fixedly connected to the shell, and the detector is fixedly connected to the device to be tested via the fixing bracket.

[0013] Furthermore, the shell has a locking portion extending toward the rear cover, and the fastener passes through the rear cover and is connected to the locking portion to fix the rear cover to the shell; the detector includes a circuit module, which is mounted on the shell, and the circuit module has a avoidance portion for avoiding the locking portion, and the avoidance portion is a notch distributed on the outer edge of the circuit module or a through hole passing through the circuit module.

[0014] Furthermore, the detector also includes a clamping piece installed on the shell, and the side of the shell away from the rear cover has an opening penetrating the shell, the clamping piece is engaged with the outer edge of the opening, and the detector is fixedly connected to the device to be tested through the clamping piece.

[0015] Furthermore, the detector includes a circuit module, the card connector is electrically connected to the circuit module, the circuit module can obtain a trigger signal indicating that the card connector is separated from the shell, and execute a corresponding alarm prompt in response to the trigger signal.

[0016] The detector of the present application is provided with a detachable sliding cover so that the sliding cover can cover the fasteners used to connect the back cover and the shell. After the detector is installed, the fasteners are concealed by the sliding cover, thereby improving the overall aesthetics of the detector and extending the service life of the fasteners. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 An exploded diagram of a detector in an embodiment of the present application;

[0018] Figure 2 In the implementation mode of this application Figure 1 A magnified image of point A;

[0019] Figure 3 A cross-sectional view of the detector at a first viewing angle in an embodiment of the present application;

[0020] Figure 4 A cross-sectional view of a partial structure of a detector in an embodiment of the present application;

[0021] Figure 5 A cross-sectional view of the detector at a second viewing angle in an embodiment of the present application;

[0022] Figure 6 It is a schematic diagram of a fixing component in an embodiment of the present application. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the specific implementation manner of the present application will be clearly and completely described below in conjunction with the drawings in the implementation manner of the present application.

[0024] like Figure 1 As shown, the present application provides a detector 100, which is specifically a vibration intrusion detector. The vibration intrusion detector is a device that can generate an alarm signal for mechanical vibration (impact) caused by intrusion within its detection range. It is generally composed of a vibration sensor and a signal processor.

[0025] The detector 100 includes a housing 11, a circuit module 12, a circuit cover 13, a back cover 14 and a sliding cover 15. The circuit module 12 is fixed on the housing 11. The circuit module 12 includes a PCB circuit board and various electrical components connected to the PCB circuit board. The electrical components include a vibration sensor, a control chip, and an alarm module. The vibration sensor converts mechanical vibration into an electrical signal recognizable by the control chip. The control chip controls the alarm module to execute a corresponding alarm prompt according to the electrical signal. The alarm module can be a speaker or an indicator light. The alarm module can also be a communication unit capable of signal transmission with a terminal device, such as a Bluetooth module, a cellular network module, etc. The electrical signal is transmitted to the terminal device through the communication unit to execute an alarm prompt on the terminal device. The circuit cover 13 is covered on the circuit module 12 and fixed to the housing 11 to improve the protection effect of the circuit module 12. In the example of the present application, a number of buckles are distributed on the outer edge of the circuit cover 13, and the circuit cover 13 is connected to the housing 11 through the buckles to improve the convenience of maintaining the circuit module 12. The rear cover 14 is mounted on the housing 11, and a fastener 16 passes through the rear cover 14 to fix the rear cover 14 to the housing 11. The sliding cover 15 is mounted on the rear cover 14 and can move relative to the rear cover 14. The rear cover 14 has a mounting portion 141 for the fastener 16 to pass through. The sliding cover 15 covers the mounting portion 141 and has the freedom of movement to slide relative to the mounting portion 141 along a first direction.

[0026] In order to clearly illustrate the technical solution of the present application, the following is also provided: Figure 1 The up-down, left-right, and front-back directions shown are the up-down, left-right, and front-back directions of the detector 100. It should be noted that the first direction mentioned above is the up-down direction of the detector 100.

[0027] like Figure 2As shown, the housing 11 has a locking portion 111 extending toward the rear cover 14, and the fastener 16 passes through the rear cover 14 and is connected to the locking portion 111, so as to fix the rear cover 14 to the housing 11. Specifically, the housing 11 includes a bottom wall 112 for connecting the circuit module 12 and side walls 113 distributed around the outer edge of the bottom wall 112, the locking portion 111 is fixed to the bottom wall 112, and is integrally formed with the bottom wall 112, and the locking portion 111 extends from the bottom wall 112 to the rear cover 14. The circuit module 12 has an avoidance portion 121 for avoiding the locking portion 111, and the avoidance portion 121 is a notch distributed on the outer edge of the circuit module 12, or a through hole penetrating the circuit module 12 in the front-to-back direction; wherein the avoidance portion 121 is specifically located on the PCB circuit board.

[0028] like Figure 3 As shown, in the example of the present application, the rear cover 14 includes a first limiting guide rail 142 extending along the first direction, and the first limiting guide rail 142 is distributed on the left and right sides of the mounting portion 141, and the first limiting guide rails 142 on both sides are recessed toward the inner side of the rear cover 14. The sliding cover 15 includes a sliding member 151 matched with the first limiting guide rail 142, and the sliding cover 15 is slidably connected to the rear cover 14 through the matching of the sliding member 151 and the first limiting guide rail 142. When the sliding cover 15 is connected to the rear cover 14, at least part of the sliding member 151 is located in the first limiting guide rail 142, and the sliding cover 15 is limited in the left and right directions of the detector 100 by the first limiting guide rail 142, and at this time, the sliding cover 15 can slide relative to the rear cover 14 along the first direction.

[0029] like Figure 3 and Figure 4 As shown, further, the rear cover 14 also includes a second limiting guide rail 143, the second limiting guide rail 143 extends along the second direction, and the first limiting guide rail 142 is connected to the second limiting guide rail 143, so that the sliding member 151 can slide between the first limiting guide rail 142 and the second limiting guide rail 143. Among them, a notch 1431 is provided at one end of the second limiting guide rail 143 away from the first limiting guide rail 142, and the sliding member 151 can enter the second limiting guide rail 143 through the notch 1431. It can be understood that when the sliding member 151 leaves the second limiting guide rail 143 from the notch 1431, the sliding cover 15 is separated from the rear cover 14, so that the fastener 16 can be disassembled to maintain the detector.

[0030] In an embodiment of the present application, the angle between the first direction and the second direction is greater than 0° to prevent the sliding cover 15 from being separated from the rear cover 14 when subjected to external force, causing the mounting portion 141 to be exposed outside the detector 100. By setting a first limiting guide rail 142 and a second limiting guide rail 143 at an angle, the sliding cover 15 can be effectively prevented from accidentally separating from the rear cover 14.

[0031] In the specific installation process, the sliding member 151 is installed in the second limiting guide rail 143 along the notch 1431, and the sliding cover 15 is first slid relative to the rear cover 14 along the second direction until the sliding member 151 enters the first limiting guide rail 142, and then the sliding cover 15 is slid relative to the rear cover 14 along the first direction until the sliding cover 15 completely covers the installation portion 141. When the fastener 16 needs to be removed, the sliding cover 15 is moved in the first direction and the second direction in sequence until the sliding member 151 is separated from the second limiting guide rail 143 at the notch 1431, and the installation portion 141 is exposed to the outside of the detector 100, so that the fastener 16 can be pre-tightened or removed.

[0032] In order to clearly illustrate the technical solution of the present application, the following embodiments are provided:

[0033] Embodiment 1: When the sliding cover 15 is installed on the back cover 14 and covers the mounting portion 141, the sliding member 151 is located at one end of the first limiting guide rail 142 away from the second limiting guide rail 143. When the detector 100 needs to be maintained, the sliding cover 15 is moved upward along the first direction relative to the back cover 14 until the sliding member 151 moves between the first limiting guide rail 142 and the second limiting guide rail 143; when the sliding member 151 is in the second limiting guide rail 143, the sliding cover 15 is moved forward and upward relative to the back cover 14 along the second direction until the sliding member 151 is separated from the second limiting guide rail 143 by the notch 1431. At this time, the sliding cover 15 is separated from the back cover 14, and the fastener 16 is exposed outside the detector 100.

[0034] like Figure 4 As shown, as an implementation, the first position-limiting guide rail 142 has a receiving portion 1421 connected to the second position-limiting guide rail 143, and the receiving portion 1421 is located between the two ends of the first position-limiting guide rail 142. With the receiving portion 1421 as a node, the first position-limiting guide rail 142 is divided into a first portion 1422 and a second portion 1423, wherein the first portion 1422 is located below the second portion 1423. When viewed from the left and right directions of the detector 100, the guide rail structure formed by the combination of the first position-limiting guide rail 142 and the second position-limiting guide rail 143 is substantially in a "Y" shape.

[0035] If the above structure is not provided, when the sliding cover 15 is subjected to a force in the first direction, the sliding member 151 has the possibility of moving upward along the first direction relative to the first limiting guide rail 142; when the sliding member 151 moves to between the first limiting guide rail 142 and the second limiting guide rail 143, the sliding cover 15 is affected by the force in the first direction and has a component of the force in the second direction, so that the sliding member 151 continues to move along the second direction relative to the second limiting guide rail 143 until the sliding member 151 is disengaged from the second limiting guide rail 143, causing the sliding cover 15 to fall off from the rear cover 14, and easily causing a certain degree of wear to the second limiting guide rail 143 or the sliding member 151.

[0036] In the example of the present application, when the sliding cover 15 is subjected to a force in the first direction, the sliding member 151 slides upward relative to the first part 1422 along the first direction, and enters the second part 1423 through the receiving portion 1421 along the first direction to prevent the sliding cover 15 from separating from the back cover 14.

[0037] In order to clearly illustrate the technical solution of the present application, the following embodiments are provided:

[0038] Example 2: When the detector 100 needs maintenance, the sliding cover 15 is moved upward along the first direction relative to the back cover 14 until the sliding member 151 moves between the first limiting guide rail 142 and the second limiting guide rail 143; when the sliding member 151 is in the second limiting guide rail 143, the sliding cover 15 is moved forward and upward along the second direction relative to the back cover 14 until the sliding member 151 is separated from the second limiting guide rail 143 by the notch 1431. At this time, the sliding cover 15 is separated from the back cover 14, and the fastener 16 is exposed outside the detector 100, so that the operator can perform maintenance on the detector 100. When the sliding cover 15 is subjected to an external force, the sliding cover 15 moves upward along the first direction relative to the rear cover 14, and the sliding member 151 enters the second part 1423 through the receiving portion 1421. The sliding cover 15 is limited by the second part 1423 to prevent the sliding member 151 from entering the second limiting guide rail 143 from the receiving portion 1421, thereby reducing the possibility of the sliding cover 15 being separated from the rear cover 14 by external force in the case of non-active maintenance.

[0039] like Figure 5 As shown, as an implementation method, the detector 100 includes a first magnetic component 17 and a second magnetic component 18. The first magnetic component 17 is installed on the back cover 14, and the second magnetic component 18 is installed on the sliding cover 15. When the sliding cover 15 covers the mounting portion 141, the sliding cover 15 is adsorbed on the back cover 14 through the cooperation of the first magnetic component 17 and the second magnetic component 18, so as to prevent the sliding cover 15 from moving under the action of external force.

[0040] Specifically, the mounting portion 141 has an inwardly recessed fixing groove 144, and the first magnetic member 17 is fixed in the limiting groove, wherein the first magnetic member 17 can be relatively fixed to the limiting groove by means of adhesion, interference connection, bolt connection, etc. Similarly, a fixing structure substantially consistent with the outer contour of the second magnetic member 18 is provided on the sliding cover 15, and the second magnetic member 18 is relatively fixed to the sliding cover 15 by means of adhesion, interference connection, bolt connection, etc.

[0041] In other examples, the first magnetic member 17 and the second magnetic member 18 may be embedded in the back cover 14 and the sliding cover 15 , respectively, to prevent the first magnetic member 17 and the second magnetic member 18 from falling off from the back cover 14 and / or the sliding cover 15 due to the interaction force between the first magnetic member 17 and the second magnetic member 18 .

[0042] like Figure 6 As shown, the detector 100 further includes a fixing assembly 19 , which is mounted on a side of the housing 11 away from the rear cover 14 and fixed to the housing 11 . The detector 100 is connected to the device under test via the fixing assembly 19 .

[0043] Among them, the fixing component 19 includes a fixing bracket 191 and a clamping part 192. The fixing bracket 191 is a metal bracket. The shell 11 and the fixing bracket 191 are fixedly connected. The fixing bracket 191 is welded to the device under test so that the detector 100 and the device under test are kept relatively fixed. When the device under test generates mechanical vibration, the detector 100 can generate corresponding alarm prompts according to the machinery.

[0044] An installation space for setting up the circuit module 12 is formed between the shell 11 and the back cover 14. The side of the shell 11 facing away from the back cover 14 (i.e., the bottom wall 112 of the shell 11) has an opening 114 that penetrates the shell 11 along the front-to-back direction. The clip 192 is engaged with the side wall of the outer edge of the opening 114 to close the installation space.

[0045] When the outer surface of the device under test does not meet the conditions for bolt installation, the clamping piece 192 engages with the side wall of the outer edge of the opening 114 to close the installation space. The fixing bracket 191 is arranged on the side of the shell 11 away from the rear cover 14 and covers the clamping piece 192. The detector 100 is welded to the device under test through the fixing bracket 191 so that the detector 100 and the device under test remain relatively fixed.

[0046] When the device under test and the detector 100 can be connected by bolt installation, the bolts for fixing the detector 100 pass through the clamping member 192 so that the detector 100 is fixedly connected to the device under test.

[0047] Exemplarily, the clamping member 192 is provided with a metal contact connected to the circuit module 12. When the detector 100 is connected to the device to be tested via the clamping member 192, if the housing 11 is separated from the clamping member 192, the metal contact between the clamping member 192 and the circuit module 12 is disconnected, and the circuit module 12 performs a corresponding alarm prompt. Since the clamping member 192 and the housing 11 are connected only by the claws of the clamping member 192, the above arrangement can solve the problem of the detector 100 being violently disassembled.

[0048] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to this application.

Claims

1. A detector, characterized in that: include: case; A rear cover, the rear cover is mounted on the housing, and a fastener passes through the rear cover to fix the rear cover to the housing; The sliding cover is detachably mounted on the rear cover, the rear cover has a mounting portion for the fastener to pass through, the sliding cover covers the mounting portion, and has the freedom of movement to slide relative to the mounting portion along a first direction.

2. The detector according to claim 1, characterized in that: The rear cover comprises a first limiting guide rail extending along the first direction, the first limiting guide rail being distributed on the left and right sides of the mounting portion, and the sliding cover is provided with a sliding member slidably connected to the first limiting guide rail.

3. The detector according to claim 2, characterized in that: The back cover also includes a second limit guide rail extending along a second direction, the second limit guide rail is connected to the first limit guide rail, the end of the second limit guide rail facing away from the first limit guide rail has a notch, the sliding member enters the second limit guide rail through the notch, wherein the angle formed between the first direction and the second direction is greater than 0°.

4. The detector according to claim 3, characterized in that: The first position-limiting guide rail has a receiving portion communicated with the second position-limiting guide rail, and the receiving portion is located between two ends of the first position-limiting guide rail.

5. The detector according to claim 1, characterized in that: The detector includes a first magnetic component and a second magnetic component, wherein the first magnetic component is mounted on the back cover, and the second magnetic component is mounted on the sliding cover. When the sliding cover covers the mounting portion, the sliding cover is adsorbed on the back cover through the cooperation of the first magnetic component and the second magnetic component.

6. The detector according to claim 5, characterized in that: The mounting portion has a fixing groove for fixing the first magnetic member, the first magnetic member is fixed in the fixing groove, and the second magnetic member is fixedly connected to the sliding cover.

7. The detector according to claim 1, characterized in that: The detector further comprises a fixing bracket, which is mounted on a side of the shell away from the rear cover and fixedly connected to the shell, and the detector is welded to the device to be tested via the fixing bracket.

8. The detector according to claim 1, characterized in that: The shell has a locking portion extending toward the rear cover, and the fastener passes through the rear cover and is connected to the locking portion to fix the rear cover to the shell; the detector includes a circuit module, and the circuit module is mounted on the shell, and the circuit module has an avoidance portion for avoiding the locking portion, and the avoidance portion is a notch distributed on the outer edge of the circuit module or a through hole passing through the circuit module.

9. The detector according to claim 1, characterized in that: The detector further comprises a clamping member mounted on the shell, the shell has an opening penetrating the shell on a side away from the rear cover, the clamping member is engaged with an outer edge of the opening, and the detector is fixedly connected to the device to be tested via the clamping member.

10. The detector according to claim 9, characterized in that: The detector includes a circuit module, the clamping component is electrically connected to the circuit module, and the circuit module can obtain a trigger signal indicating that the clamping component is separated from the shell, and execute a corresponding alarm prompt in response to the trigger signal.

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