Infrared motion sensor

Abstract

The application provides an infrared motion sensor, which comprises a fixed hanging plate and a sensor main body, the fixed hanging plate comprises a fixed lock buckle and a fixed clasp buckle, and the sensor main body comprises a fixed lock hook and a fixed clasp hook, wherein: the fixed lock buckle is used for being locked with the fixed lock hook when the sensor main body is inserted from a first direction and reaches a first preset position, so that the fixed hanging plate and the sensor main body are fixed in the first direction; and the fixed clasp buckle is used for being embedded with the fixed clasp hook when the sensor main body is inserted from the first direction and reaches the first preset position, so that the fixed hanging plate and the sensor main body are fixed in a second direction. The infrared motion sensor is beneficial to solve the problem that security equipment does not have a disassembly prevention function, is easy to be damaged, is disassembled and thus causes the equipment to malfunction.

Description

Technical Field

[0001] This application relates to the field of motion sensor technology, and more particularly to an infrared motion sensor. Background Technology

[0002] Infrared motion sensors, also known as passive infrared (PIR) detectors or pyroelectric infrared sensors, as well as security devices such as door magnetic alarms, are increasingly used in daily life.

[0003] However, currently available battery-powered security devices such as infrared motion sensors and door magnetic alarms are mostly fixed with adhesive backing or backplate + screws because users need to replace batteries. This solution has certain exposure risks. For security devices installed in public areas, they do not have anti-tampering functions, which means they can be sabotaged or dismantled in advance, causing the devices to malfunction. Utility Model Content

[0004] This application provides an infrared motion sensor, which helps to solve the problem that security equipment lacks anti-tampering capabilities and is easily damaged or disassembled, leading to equipment malfunction.

[0005] The infrared motion sensor includes a fixed mounting plate and a sensor body. The fixed mounting plate includes a fixed latch and a fixed buckle, and the sensor body includes a fixed locking hook and a fixed locking hook. The fixed latch is used to lock with the fixed locking hook when the sensor body is inserted from a first direction and reaches a first preset position, so as to fix the fixed mounting plate and the sensor body in the first direction. The fixed buckle is used to engage with the fixed locking hook when the sensor body is inserted from the first direction and reaches the first preset position, so as to fix the fixed mounting plate and the sensor body in a second direction.

[0006] As can be seen, in this embodiment of the application, the fixed mounting plate and the sensor body are fixedly installed by two pairs of fixing parts: the fixed latch and the fixed hook, and the fixed buckle and the fixed hook. When the sensor body is inserted from the first direction and reaches the first preset position after installation, the fixed latch and the fixed hook lock, thereby realizing the installation and locking of the fixed mounting plate and the sensor body. This solves the problem that security equipment does not have anti-disassembly function and is easily damaged or disassembled, which may cause the equipment to malfunction.

[0007] In one possible embodiment, the fixing latch includes a first elastic latch and a second elastic latch; the first elastic latch and the second elastic latch are disposed on both sides of the same horizontal position on the surface of the fixing plate, and the gap width between the first elastic latch and the second elastic latch is a first width; the sensor body also includes a first connecting post, and the first connecting post has a first fixing hook and a second fixing hook on both sides of the same horizontal position, the width of the first connecting post is a second width, and the maximum distance between the first fixing hook and the second fixing hook is a third width, the second width is less than the first width, and the third width is greater than the first width, wherein: the first elastic latch and the second elastic latch are used to generate elastic deformation when the fixing hook contacts the fixing hook during the insertion of the fixing hook from the first direction, so that the fixing hook passes through the gap between the first elastic latch and the second elastic latch; after the fixing hook passes through the gap between the first elastic latch and the second elastic latch, the elastic deformation is restored, so that the first elastic latch is locked with the first fixing hook in the first direction, and the second elastic latch is locked with the second fixing hook in the first direction.

[0008] As can be seen from the embodiments of this application, the structure of the first fixed locking hook, the second fixed locking hook, the first elastic buckle and the second elastic buckle realizes the installation and locking of the fixed mounting plate and the sensor body, thereby solving the problem caused by the lack of anti-tampering mechanism in security equipment.

[0009] In one possible embodiment, the first elastic buckle and the second elastic buckle each include a slider, a second connecting post, and a spring, wherein: the slider is used to contact the fixed locking hook; the spring is used to generate elastic deformation; and the second connecting post is used to connect the slider and the spring.

[0010] In one possible embodiment, the slider is made of aluminum alloy and the second connecting post is made of ferromagnetic material.

[0011] In one possible embodiment, the slider is connected to the second connecting post based on a two-component epoxy resin AB adhesive.

[0012] In one possible embodiment, the first elastic buckle and the second elastic buckle further include protective covers for shielding the slider, the spring, and the second connecting post.

[0013] In one possible embodiment, the mounting plate further includes at least one fixing through hole and a fastening part corresponding to the at least one fixing through hole, wherein: the fastening part is used to fix the mounting plate to the mounting surface through the fixing through hole, the mounting surface including a wall surface, a ceiling surface or a column surface.

[0014] In one possible embodiment, the fixing through hole is an internally threaded hole, and the fastening part is a screw.

[0015] As can be seen from the embodiments of this application, the mechanical fixing of the internal threaded hole and screw completely eliminates the risk of the mounting plate being pried off the mounting surface as a whole, forming a double guarantee with the anti-disassembly function of the fixing hook. At the same time, it improves the installation reliability in harsh environments.

[0016] In one possible embodiment, the retaining latch is also used to release the lock between the retaining latch and the retaining hook when the disassembly tool is contacted.

[0017] In one possible embodiment, the disassembly tool includes a magnetic component. When the magnetic component is placed in a second preset position and generates a magnetic attraction effect on the first elastic buckle and the second elastic buckle respectively, the first elastic buckle undergoes elastic deformation and releases its lock from the first fixed hook, while the second elastic buckle undergoes elastic deformation and unlocks from the second fixed hook.

[0018] As can be seen from the embodiments of this application, the synergistic design of the magnetic trigger unlocking mechanism and the double elastic buckle structure ensures the tamper-proof security of the infrared motion detector while also enabling quick unlocking and disassembly using disassembly tools, thus ensuring ease of operation.

[0019] As can be seen from the infrared motion sensor in the above-described embodiments, the use of two pairs of fixing components—fixed latches and fixed hooks, fixed buckles and fixed hooks—to securely install the mounting plate and sensor body solves the problem of security equipment lacking anti-tamper functionality and being easily damaged or disassembled, leading to equipment malfunction. The fixed through-holes and corresponding fastening parts completely eliminate the risk of the mounting plate being pried off the mounting surface, while also improving installation reliability in harsh environments. The synergistic design of the magnetic trigger unlocking mechanism and the double-elastic buckle structure also allows for quick unlocking and disassembly using tools, ensuring ease of operation. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of an infrared motion sensor provided in an embodiment of this application; Figure 2 This is a schematic diagram illustrating a first preset position according to an embodiment of this application; Figure 3 A schematic diagram illustrating the locking process of a fixed latch and a fixed hook provided in an embodiment of this application; Figure 4A schematic diagram of a fixing through hole and fastening parts provided in an embodiment of this application; Figure 5A This is a schematic diagram of the structure of a fixing buckle and a fixing hook provided in an embodiment of this application; Figure 5B A schematic diagram of the locking configuration of a fixed latch and a fixed hook provided in an embodiment of this application; Figure 6 This is a schematic diagram of the internal structure of an elastic buckle provided in an embodiment of this application; Figure 7 This is a schematic diagram of the structure of a disassembly tool provided in an embodiment of this application.

[0022] Reference numerals: 100: Infrared motion sensor; 101: Fixed mounting plate; 102: Sensor body; 1011: Fixed latch; 1012: Fixed buckle; 1021: Fixed hook; 1022: Fixed latch; 401: Fixed through hole; 402: Fastening part; 501: First elastic buckle; 502: Second elastic buckle; 503: First fixed hook; 504: Second fixed hook; 505: First connecting post; 601: Slider; 602: Second connecting post; 603: Spring; 604: Protective cover; 701: Disassembly tool; 702: First magnetic component; 703: Second magnetic component. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0024] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps is not limited to the steps listed, but may optionally include steps not listed, or may optionally include other steps inherent to these processes, methods, products, or apparatuses.

[0025] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0026] Example 1: Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of an infrared motion sensor provided in an embodiment of this application, wherein the infrared motion sensor 100 includes a fixed mounting plate 101 and a sensor body 102.

[0027] The mounting plate 101 is used to fix the device to a mounting surface, which is a relatively fixed surface of an object, such as a wall surface, ceiling, column, or tabletop. The sensor body 102 is specifically an infrared motion sensor used to detect movement in the measured environment; it can also be used for security devices such as door magnetic sensors.

[0028] The mounting plate 101 includes a fixing latch 1011 and a fixing buckle 1012, and the sensor body 102 includes a fixing hook 1021 and a fixing hook 1022. Figure 1 In the example shown, the mounting plate 101 includes a fixing latch 1011 and four fixing clips 1012. Because the sensor body 102 obstructs one of the fixing clips 1012, it is not in use. Figure 1 As shown in the image.

[0029] Furthermore, due to the obstruction by the sensor body 102, the fixing hook 1021 and fixing latch 1022 are not shown in the figure. It should be noted that the fixing latch 1012 and fixing latch 1022 correspond one-to-one. Figure 1 In the example shown, the fixed mounting plate 101 includes four fixing buckles 1012, and the sensor body 102 also includes four corresponding fixing hooks 1022.

[0030] The locking latch 1011 is used to secure the sensor body 102 from the first direction (i.e., Figure 1 When the sensor body 102 is inserted into the vertical direction shown in the figure and reaches the first preset position, it is locked with the fixing hook 1021 so that the fixing plate 101 and the sensor body 102 are fixed in the first direction.

[0031] Please see Figure 2 , Figure 2 This is a schematic diagram illustrating a first preset position as shown in an embodiment of this application, such as... Figure 2As shown, in this embodiment, the fixed mounting plate 101 and the sensor body 102 have the same length and width. The first preset position specifically refers to... Figure 2 In the test diagram shown, the fixed mounting plate 101 and the sensor body 102 are facing each other, and the sensor body 102 is positioned when the minimum distance between the fixed mounting plate 101 and the sensor body 102 is zero.

[0032] Furthermore, it should be noted that once the locking buckle 1011 and the locking hook 1021 are locked, they can only be unlocked using the corresponding disassembly tools. Otherwise, the locking buckle 1011 and the locking hook 1021 will remain locked, and the mounting plate 101 and the sensor body 102 will be fixed in the first direction due to the locking buckle 1011 and the locking hook 1021. Unless otherwise specified, "fixed in the first direction" here specifically refers to... Figure 1 Relative movement is not possible in the first direction shown or in the opposite direction.

[0033] The fixing buckle 1012 is used to engage with the fixing hook 1022 when the sensor body 102 is inserted from the first direction and reaches the first preset position, so that the fixing plate 101 and the sensor body 102 are fixed in the second direction, which includes all directions other than the first direction.

[0034] Furthermore, to achieve the locking of the locking buckle 1011 and the locking hook 1021, the locking buckle 1011 or the locking hook 1021 needs to deform when they come into contact with each other, so that the locking hook 1021 enters a first preset position, and then returns to its original shape after entering the first preset position, thereby achieving locking. Specifically, one or more of the locking buckle 1011 or the locking hook 1021 may deform.

[0035] For example, please see Figure 3 , Figure 3 This is a schematic diagram illustrating the locking process of a fixed latch and a fixed hook, provided as an embodiment of this application. Figure 3 In the process, the three process nodes from top to bottom are before locking, during locking, and after locking. In the state before locking, the fixed latch 1011 and the fixed hook 1021 are not in contact. It should be noted that the fixed latch 1011 also includes an elastic component inside, so that the component that directly contacts the fixed latch 1011 and the fixed hook 1021 can deform downward and cannot deform upward.

[0036] In the locked state, the fixed latch 1011 and the fixed hook 1021 are in contact, and the fixed latch 1011 undergoes elastic deformation.

[0037] Once locked, the retaining latch 1011 returns to its original shape, while the retaining hook 1021 cannot deform upwards. Therefore, the retaining latch 1011 and the retaining hook 1021 are locked.

[0038] As can be seen, in this embodiment of the application, the fixed mounting plate and the sensor body are fixedly installed by two pairs of fixing parts: the fixed latch and the fixed hook, and the fixed buckle and the fixed hook. When the sensor body is inserted from the first direction and reaches the first preset position after installation, the fixed latch and the fixed hook lock, thereby realizing the installation and locking of the fixed mounting plate and the sensor body. This solves the problem that security equipment does not have anti-disassembly function and is easily damaged or disassembled, which may cause the equipment to malfunction.

[0039] Optionally, the mounting plate further includes at least one fixing through hole and a fastening part corresponding to the at least one fixing through hole, wherein: the fastening part is used to fix the mounting plate to the mounting surface through the fixing through hole, the mounting surface including the wall surface, ceiling surface or column surface.

[0040] Specifically, in this embodiment, the fixing through holes are provided on the fixing plate, specifically in the four corner edge areas or the upper and lower edges, and the number of through holes is two, four, etc.

[0041] Furthermore, the fixed through holes are symmetrically distributed to ensure installation stability.

[0042] The fastening parts here are one or more of the following: self-tapping screws, nails, screws, etc., and their thread structure can adapt to various mounting surfaces (such as concrete, wood or metal substrates).

[0043] Optionally, the fixing through hole is an internally threaded hole, and the fastening part is a screw.

[0044] Please see Figure 4 , Figure 4 This illustration shows a fixing through hole and fastening parts provided in an embodiment of this application. The fixing plate 101 further includes fixing through holes 401 and fastening parts 402. Specifically, the fixing plate 101 includes two fixing through holes 401, which are internally threaded holes distributed along the upper and lower edges of the fixing plate 101. The fastening parts 402 are screws. The two fastening parts 402, through the fixing through holes 401, can fix the fixing plate 101 to the mounting surface.

[0045] As can be seen from the embodiments of this application, the mechanical fixing of the internal threaded hole and screw completely eliminates the risk of the mounting plate being pried off the mounting surface as a whole, forming a double guarantee with the anti-disassembly function of the fixing hook. At the same time, it improves the installation reliability in harsh environments.

[0046] Example 2: The above embodiments provide an infrared motion sensor. Based on this, when the fixed latch includes a first elastic latch and a second elastic latch, and the fixed hook includes a first fixed hook and a second fixed hook, the embodiments of this application also provide a more detailed infrared motion sensor.

[0047] Please see Figure 5A , Figure 5A This is a schematic diagram of a fixing buckle and a fixing hook provided in an embodiment of this application. The fixing buckle 1011 includes a first elastic buckle 501 and a second elastic buckle 502, and the fixing hook 1021 includes a first fixing hook 503 and a second fixing hook 504.

[0048] like Figure 5A As shown, the first elastic buckle 501 and the second elastic buckle 502 constitute a symmetrical elastic buckle mechanism. The first width refers to the distance between the inner sides of the two elastic buckles. The upper width of the part of the elastic buckle that directly contacts the first fixed hook 503 and the second fixed hook 504 is smaller than the lower width, forming a wedge-shaped surface so that when the first elastic buckle 501 and the second elastic buckle 502 come into contact with the first fixed hook 503 and the second fixed hook 504 moving from top to bottom (first direction), they will generate elastic deformation in their respective directions, so that the first fixed hook 503 and the second fixed hook 504 can pass through.

[0049] The first connecting post 505 in the figure is used to connect the first fixing hook 503, the second fixing hook 504, and the sensor body 102. Figure 5A (Not shown in the image), the first fixing hook 503 and the second fixing hook 504 are located on both sides of the first connecting post 505, wherein the width of the first connecting post 505 is the second width, and the maximum distance between the first fixing hook 503 and the second fixing hook 504 is the third width. The second width is less than the first width, and the third width is greater than the first width.

[0050] The following will describe in detail the mounting plate 101 ( Figure 5A The installation process of the sensor body 102 (not shown in the image) and sensor body 102.

[0051] Insertion and Deformation Stage: When the sensor body 102 moves along the first direction (vertically downward), the first fixing hook 503 and the second fixing hook 504 enter the gap of the elastic buckle. When the first fixing hook 503 and the second fixing hook 504 respectively contact the inner inclined surface of the first elastic buckle 501 and the second elastic buckle 502, the wedge-shaped structure of the inclined surface converts the vertical movement into a lateral component force, pushing the two elastic buckles to elastically deform in opposite directions. At this time, the gap temporarily expands to more than the third width, and the first fixing hook 503 and the second fixing hook 504 pass smoothly.

[0052] Deformation recovery stage: After the first fixed hook 503 and the second fixed hook 504 have completely passed the first elastic buckle 501 and the second elastic buckle 502, the elastic buckle loses the external force constraint and returns to the original gap first width by relying on the elasticity of the material.

[0053] Mechanical interlock stage: Please refer to Figure 5B , Figure 5B This is a schematic diagram of the locking configuration of a fixed latch and a fixed hook provided in an embodiment of this application. After resetting, the lower edge of the component that directly contacts the first elastic latch 501 and the second elastic latch 502 forms a vertical step difference with the upper edge of the hook. This step difference constitutes physical interference, thereby locking the first elastic latch 501 and the first fixed hook 503 in the first direction, and locking the second elastic latch 502 and the second fixed hook 504 in the first direction.

[0054] The first connecting post 505 prevents the sensor body 102 from detaching in the reverse direction, thus achieving locking in the first direction.

[0055] Furthermore, after the first fixed hook 503 and the second fixed hook 504 have completely passed the first elastic buckle 501 and the second elastic buckle 502, a baffle is also provided below the first fixed hook 503 and the second fixed hook 504 to achieve locking in the opposite direction of the first direction.

[0056] also, Figure 5A and Figure 5B For detailed descriptions of the fixed mounting plate 101, sensor body 102, fixed buckle 1011, fixed buckle 1012, fixed hook 1021 and fixed hook 1022 (not shown), please refer to the relevant content in Embodiment 1, which will not be repeated here.

[0057] As can be seen from the embodiments of this application, the structure of the first fixed locking hook, the second fixed locking hook, the first elastic buckle and the second elastic buckle realizes the installation and locking of the fixed mounting plate and the sensor body, thereby solving the problem caused by the lack of anti-tampering mechanism in security equipment.

[0058] Optionally, the first elastic buckle and the second elastic buckle each include a slider, a second connecting post, and a spring, wherein: the slider is used to contact and fix the locking hook; the spring is used to generate elastic deformation; and the second connecting post is used to connect the slider and the spring.

[0059] Specifically, in the embodiments of this application, the first elastic buckle and the second elastic buckle respectively include a slider, a second connecting post and a spring. Since the first elastic buckle and the second elastic buckle have the same structure, the following description will take the first elastic buckle as an example.

[0060] In the first elastic latch, the slider is used to directly contact the fixed locking hook (first fixed locking hook). A spring is used to generate elastic deformation, enabling the entire mechanism to move laterally. The second connecting post connects the slider and the spring, making them a single unit.

[0061] In one possible embodiment, the slider is made of aluminum alloy and the second connecting post is made of ferromagnetic material.

[0062] Specifically, in the embodiments of this application, the main reason for using aluminum alloy for the sliders of the first and second elastic buckles is that it has good stability in a lightweight size and is not affected by magnetic attraction, so that the first and second elastic buckles move only under the influence of the spring; under normal conditions, the slider protrudes outward, which hinders the first and second fixed hooks to achieve the locking of the first elastic buckle with the first fixed hook and the second elastic buckle with the second fixed hook.

[0063] During the installation process of the sensor body and the mounting plate, the slider is recessed to achieve the installation of the sensor body and the mounting plate.

[0064] Optionally, the slider is connected to the second connecting post based on a two-component epoxy resin AB adhesive.

[0065] Optionally, the first and second elastic buckles also include protective covers for shielding the slider, the spring, and the second connecting post.

[0066] Please see Figure 6 , Figure 6 This is a schematic diagram of the internal structure of an elastic buckle provided in an embodiment of this application. Figure 6 The structure shown is specifically the internal structure of the first elastic buckle; the internal structure of the second elastic buckle is similar and will not be described in detail here. It includes a slider 601, a second connecting post 602, a spring 603, and a protective cover 604. The slider 601 is connected to the second connecting post 602 using a two-component epoxy resin AB adhesive. After the second connecting post 602 is connected to the spring 603, it is placed in a semi-enclosed track within the fixed mounting plate 101. The protective cover 604 is then installed on the semi-enclosed track within the fixed mounting plate 101 to conceal the slider 601, the second connecting post 602, and the spring 603.

[0067] Example 3: The above-described embodiments describe an infrared motion sensor in normal operation before and after installation. Based on this, this embodiment also provides another more detailed infrared motion sensor when the fixing hook is disassembled using a disassembly tool.

[0068] In this embodiment, the fixing latch includes a first elastic latch and a second elastic latch; the first elastic latch and the second elastic latch are disposed on both sides of the same horizontal position on the surface of the fixing plate, and the gap width between the first elastic latch and the second elastic latch is a first width; the sensor body also includes a first connecting post, and the two sides of the first connecting post at the same horizontal position include a first fixing hook and a second fixing hook, the width of the first connecting post is a second width, and the maximum distance between the first fixing hook and the second fixing hook is a third width, the second width is less than the first width, and the third width is greater than the first width, wherein: the first elastic latch and the second elastic latch are used to generate elastic deformation when the fixing hook contacts the fixing hook during the insertion of the fixing hook from the first direction, so that the fixing hook passes through the gap between the first elastic latch and the second elastic latch; after the fixing hook passes through the gap between the first elastic latch and the second elastic latch, the elastic deformation is restored, so that the first elastic latch is locked with the first fixing hook in the first direction, and the second elastic latch is locked with the second fixing hook in the first direction.

[0069] The locking catch is also used to release the locking catch from the locking hook when the disassembly tool is in contact with it.

[0070] Specifically, in this embodiment of the application, the locking of the fixed buckle and the fixed hook can be achieved by a disassembly tool. The disassembly tool corresponds to the fixed buckle and the fixed hook. Specifically, the locking of the fixed buckle and the fixed hook can be released by directly contacting the fixed buckle and the fixed hook or by means of magnetic attraction.

[0071] Optionally, the device includes a magnetic component. When the magnetic component is placed in a second preset position and generates a magnetic attraction effect on the first elastic buckle and the second elastic buckle respectively, the first elastic buckle undergoes elastic deformation and releases from the lock with the first fixed hook, and the second elastic buckle undergoes elastic deformation and unlocks from the second fixed hook.

[0072] Specifically, in this embodiment, the disassembly tool includes a magnetic component, with two magnetic components (such as neodymium iron boron permanent magnets) symmetrically embedded inside. The spacing between the magnets matches the horizontal layout of the first and second elastic buckles on the fixed mounting plate.

[0073] For example, please see Figure 7 , Figure 7 This is a schematic diagram of a disassembly tool provided in an embodiment of this application. The disassembly tool 701 includes a first magnetic component 702 and a second magnetic component 703. The gap formed by the first magnetic component 702 and the second magnetic component 703 is larger than a first gap, so that a fixed hanging plate 101 can be placed in the gap formed by the first magnetic component 702 and the second magnetic component 703 of the disassembly tool 701 to achieve magnetic unlocking.

[0074] The magnetic unlocking mechanism is implemented in three steps: Magnetic triggering stage: When the disassembly tool 701 approaches the fixed mounting plate and the sensor body to the second preset position, the magnetic field generated by the first magnetic component 702 and the second magnetic component 703 penetrates the outer shell of the fixed mounting plate and acts on the ferromagnetic material of the first elastic buckle and the second elastic buckle (such as the second connecting post of ferromagnetic material mentioned above).

[0075] Elastic deformation stage: The first and second elastic buckles undergo elastic deformation under magnetic traction, causing the gap between the first and second elastic buckles to expand to more than the third width.

[0076] Locking release stage: After the gap widens, the first fixed locking hook and the first elastic buckle are released from locking, and the second fixed locking hook and the second elastic buckle are released from locking. At this time, the sensor body can move freely in the opposite direction along the first direction.

[0077] As can be seen from the embodiments of this application, the synergistic design of the magnetic trigger unlocking mechanism and the double elastic buckle structure ensures the tamper-proof security of the infrared motion detector while also enabling quick unlocking and disassembly using disassembly tools, thus ensuring ease of operation.

[0078] As can be seen from the infrared motion sensor in the above-described embodiments, the use of two pairs of fixing components—fixed latches and fixed hooks, fixed buckles and fixed hooks—to securely install the mounting plate and sensor body solves the problem of security equipment lacking anti-tamper functionality and being easily damaged or disassembled, leading to equipment malfunction. The fixed through-holes and fastening parts completely eliminate the risk of the mounting plate being pried off the mounting surface, while also improving installation reliability in harsh environments. The synergistic design of the magnetic trigger unlocking mechanism and the double-elastic buckle structure also allows for quick unlocking and disassembly using tools, ensuring ease of operation.

[0079] In the several embodiments provided in this application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical or other forms.

[0080] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0081] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0082] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An infrared motion sensor, characterized in that, The infrared motion sensor includes a mounting plate and a sensor body. The mounting plate includes a fixing latch and a fixing buckle, and the sensor body includes a fixing hook and a fixing hook, wherein: The fixing buckle is used to lock with the fixing hook when the sensor body is inserted from the first direction and reaches the first preset position, so as to fix the fixing plate and the sensor body in the first direction. The fixing buckle is used to engage with the fixing hook when the sensor body is inserted from the first direction and reaches the first preset position, so as to fix the fixing plate and the sensor body in the second direction.

2. The infrared motion sensor according to claim 1, characterized in that, The fixing latch includes a first elastic latch and a second elastic latch; the first elastic latch and the second elastic latch are disposed on both sides of the same horizontal position on the surface of the fixing plate, and the gap width between the first elastic latch and the second elastic latch is a first width; the sensor body also includes a first connecting post, and the first connecting post has a first fixing hook and a second fixing hook on both sides of the same horizontal position, the width of the first connecting post is a second width, the maximum distance between the first fixing hook and the second fixing hook is a third width, the second width is less than the first width, and the third width is greater than the first width, wherein: The first elastic buckle and the second elastic buckle are used to generate elastic deformation when the fixed locking hook contacts the fixed locking hook during the process of the fixed locking hook being inserted from the first direction, so that the fixed locking hook passes through the gap between the first elastic buckle and the second elastic buckle; After the fixed locking hook passes through the gap between the first elastic buckle and the second elastic buckle, it recovers its elastic deformation so that the first elastic buckle and the first fixed locking hook are locked in the first direction, and the second elastic buckle and the second fixed locking hook are locked in the first direction.

3. The infrared motion sensor according to claim 2, characterized in that, The first elastic buckle and the second elastic buckle each include a slider, a second connecting post, and a spring, wherein: The slider is used to contact the fixed locking hook; The spring is used to generate elastic deformation; The second connecting post is used to connect the slider and the spring.

4. The infrared motion sensor according to claim 3, characterized in that, The slider is made of aluminum alloy, and the second connecting post is made of ferromagnetic material.

5. The infrared motion sensor according to claim 3, characterized in that, The slider is connected to the second connecting post based on a two-component epoxy resin AB adhesive.

6. The infrared motion sensor according to any one of claims 3-5, characterized in that, The first elastic buckle and the second elastic buckle also include protective covers, which are used to cover the slider, the spring and the second connecting post.

7. The infrared motion sensor according to any one of claims 1-5, characterized in that, The fixed mounting plate further includes at least one fixed through hole and fastening parts corresponding to the at least one fixed through hole, wherein: The fastening component is used to fix the mounting plate to the mounting surface through the fixing through hole, the mounting surface including the wall surface, ceiling surface or column surface.

8. The infrared motion sensor according to claim 7, characterized in that, The fixing through hole is an internally threaded hole, and the fastening part is a screw.

9. The infrared motion sensor according to any one of claims 2-5, characterized in that, The locking latch is also used to release the locking latch from the locking hook when the disassembly tool is contacted.

10. The infrared motion sensor according to claim 9, characterized in that, The disassembly tool includes a magnetic component. When the magnetic component is placed in the second preset position and generates a magnetic attraction effect on the first elastic buckle and the second elastic buckle respectively, the first elastic buckle undergoes elastic deformation and releases its lock from the first fixing hook, and the second elastic buckle undergoes elastic deformation and unlocks from the second fixing hook.

Images