Detection device

Abstract

The utility model provides a detection device. The detection device comprises a base; the side end of the angle adjusting part is rotationally connected to the base; the detection main body is used for detecting environmental parameters, and the detection main body is connected to the angle adjusting part so as to adjust the detection direction when the angle adjusting part rotates relative to the base; the resistance adapter is arranged between the angle adjusting piece and the base, the angle adjusting piece generates first rotation resistance based on the resistance adapter, and the first rotation resistance is used for maintaining the detection direction stable; the first rotation resistance is matched with the rigidity of the base and the rigidity of the angle adjusting piece, so that when the operation force for driving the angle adjusting piece to rotate is removed, the angle adjusting piece does not rebound or the rebound angle is smaller than 4 degrees. According to the detection device provided by the utility model, a user can more accurately control the detection direction.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of smart home, especially a detection device. BACKGROUND

[0002] With the development of smart home, people's demand for life intelligent is higher and higher, to realize the intelligent home scene, intelligent sensing device is essential.

[0003] The detection direction of the detection device has a greater impact on the detection effect, and in use, in order to make the detection device as little as possible to appear false triggering or non-triggering, the detection direction of the detection device needs to be adjusted according to the actual effect.

[0004] In the prior art, the detection device adjusts the detection direction by adjusting the support, and the adjustment accuracy of the adjusting support directly affects the accuracy of the detection direction, but the adjusting accuracy of the adjusting support of the prior art is not high. UTILITY MODEL CONTENTS

[0005] One purpose of the utility model is to provide a detection device, wherein the first rotation resistance can overcome the influence of the gravity of the detection main body and the angle adjusting piece, and overcome the influence of vibration, and maintain the stability of the detection direction.

[0006] Another purpose of the utility model is to provide a detection device, wherein the first rotation resistance value is adaptively designed according to the rigidity of the base and the angle adjusting piece, so that the angle adjusting piece does not rebound or the rebound angle is less than 4°, thereby reducing the offset of the detection direction, and allowing the user to more accurately control the detection direction.

[0007] Another purpose of the utility model is to provide a detection device, wherein the ratio of T1 to m1 satisfies the relationship: 0.49N·mm / g≤T1 / m1≤4.63N·mm / g, so that the angle adjusting piece not only maintains the stability of the detection direction, but also the rebound angle of the angle adjusting piece is less than 4° when the operating force F is removed, thereby improving the accuracy of the detection direction adjustment.

[0008] Another purpose of the utility model is to provide a detection device, wherein the first rotation resistance is adjusted by operating the threaded column, so that the first rotation resistance can be infinitely adjusted, so as to adjust the first rotation resistance to a more optimal value; in addition, the tightening torque value of the resistance adapter can be set to ensure that the first rotation resistance of products produced in each batch is consistent.

[0009] The utility model discloses a detection device, wherein the connecting portion is provided with a resistance adapter at one end, which has the advantages that: 1, the connecting portion is provided with a resistance adapter at one end, the tightening force of the resistance adapter is linearly related to the first rotation resistance, which reduces the difficulty of adjusting the first rotation resistance, easily adjusts the first rotation resistance to the optimal value, and ensures that the first rotation resistance of products produced in different batches is consistent. 2, the connecting portion is provided with a resistance adapter at one end, so that the first rotation resistance of the resistance adapter under the tightened state does not easily exceed the second critical value, eliminating the risk of loosening of the resistance adapter. 3, the connecting portion is provided with a resistance adapter at one end, so that the tightening force of the resistance adapter can be tightened to the target value at one time, and the assembly efficiency is improved; and the number of resistance adapters of the embodiment is less, and the assembly efficiency is further improved.

[0010] The utility model discloses a detection device, wherein the end faces of the connecting portion at both ends are respectively in abutment with the end faces of the connecting grooves at both ends, so that the end faces of the connecting grooves at both ends form face limiting for the connecting portion, the angle adjusting piece rotates more stably, and tilting and shaking are avoided. At the same time, the connecting portion at both ends is in abutment with the connecting grooves, which can prevent the connecting portion from being separated from the base and avoid the angle adjusting piece from falling off.

[0011] The utility model discloses a detection device, wherein in the first state, the lower surface of the angle adjusting piece is parallel to the upper surface of the base and has a reserved gap therebetween, the reserved gap provides rebounding space for the angle adjusting piece, that is, when the angle adjusting piece rotates to the vertical state, it can still rotate clockwise by a certain angle, ensuring that the angle adjusting piece can reach the vertical state after rebounding. Therefore, when the first rotation resistance T1 is larger, the detection direction can also reach the vertical direction.

[0012] The utility model discloses a detection device, wherein the first reinforcing wall is used for reinforcing the rigidity of the base, reducing the deformation amount of the base, and further reducing the rebounding amount of the angle adjusting piece, so that the detection direction adjustment is more accurate.

[0013] The utility model discloses a detection device, wherein the angle adjusting piece is connected to the base through two resistance adapters, improving the rotation stability.

[0014] The utility model discloses a detection device, wherein the first rotation resistance is controlled by controlling the interference amount between the connecting portion and the connecting groove, which is more convenient to ensure that the first rotation resistance of products produced in different batches is consistent.

[0015] The utility model discloses a detection device, wherein the raw ear needle is used as the bolt, which improves the assembly efficiency, and the connection stability of the raw ear needle is good, and the normal use will not cause the falling-off situation.

[0016] To achieve the above at least one purpose, the utility model provides a detection device, including base, angle adjusting spare, its side end rotation connection in base, detection main part for detecting environmental parameter, detection main part connection in angle adjusting spare, with when angle adjusting spare relative to base rotation, adjust detection direction, resistance adaptation spare setting between angle adjusting spare with base, angle adjusting spare based on resistance adaptation spare generates first rotation resistance, first rotation resistance is used for maintaining detection direction stability, first rotation resistance adapts to the rigidity of base and angle adjusting spare, so that when the operating force that drives angle adjusting spare rotation is removed, angle adjusting spare does not occur rebound or rebound angle is less than 4 DEG.

[0017] Further, the base has a first friction surface, the angle adjusting member has a second friction surface directly or indirectly abutting the first friction surface, when the angle adjusting member rotates relative to the base, the second friction surface and the first friction surface generate dynamic friction; the resistance adaptation member has a threaded column, the threaded column passes through the first friction surface and the second friction surface, the resistance adaptation member adjusts the normal pressure between the first friction surface and the second friction surface through the threaded column, and further adjusts the first rotation resistance.

[0018] Further, the side end of the angle adjusting member is provided with a connecting portion, the base is provided with a connecting groove, the connecting portion is embedded in the connecting groove, one end of the connecting portion is provided with the resistance adaptation member, and the other end is not provided with the resistance adaptation member; the end face of the connecting portion close to the resistance adaptation member constitutes the second friction surface, and the end face of the connecting groove close to the resistance adaptation member constitutes the first friction surface.

[0019] Further, the end faces of both ends of the connecting portion are in abutment with the end faces of both ends of the connecting groove.

[0020] In some embodiments, the end of the angle adjusting member is provided with a connecting portion, the base is provided with a connecting groove, the connecting portion is embedded in the connecting groove, both ends of the connecting portion are provided with the resistance adaptation member; the end faces of both ends of the connecting portion are in abutment with the end faces of both ends of the connecting groove, the end faces of both ends of the connecting groove constitute the first friction surface, and the end faces of both ends of the connecting portion constitute the second friction surface.

[0021] In some embodiments, the resistance adapter comprises the threaded column and a screw cap arranged at one end of the threaded column, the second friction surface of the connecting part is provided with a connecting hole, the first friction surface of the connecting groove is provided with a first through hole corresponding to the connecting hole, the threaded column passes through the first through hole and is connected to the connecting hole, and the threaded column constitutes the rotating shaft of the angle adjusting part.

[0022] In some embodiments, the end of the angle adjusting part is provided with a connecting part, the base is provided with a connecting groove, and the connecting part is embedded in the connecting groove; the resistance adapter is configured as an ear needle, the connecting part is transversely provided with a connecting hole, the base is provided with a first through hole corresponding to the connecting hole at two ends of the connecting groove, the ear needle is placed in the connecting hole, and the ear needle is inserted into the first through hole at two ends, so that the connecting part is rotationally connected to the base, and the ear needle forms the rotating shaft of the angle adjusting part; the connecting part is attached to the connecting groove at two ends, so that the first rotating resistance is generated when the connecting part rotates.

[0023] In some embodiments, the environmental parameters comprise human motion and / or micro-motion, the detection main body comprises a shell, a detection module, a button cell and an end cover, the shell is configured in a cylindrical shape with two open ends, the angle adjusting part is arranged at a first open end of the shell, the end cover is arranged at a second open end of the shell, the detection module and the button cell are arranged inside the shell, and a detection direction of the detection module is directed to a direction opposite to the second open end; a first reinforcing wall is arranged around an edge of a bottom of the base, and the first reinforcing wall is used to reinforce the rigidity of the base.

[0024] In some embodiments, the angle adjusting part has a first state during rotation, in the first state, a lower surface of the angle adjusting part is parallel to an upper surface of the base, and a reserved gap is formed between the lower surface and the upper surface.

[0025] In some embodiments, the sum of the weight of the detection main body and the angle adjusting part is m1, the first rotating resistance is T1, and the ratio of T1 to m1 satisfies the relationship: 0.49 N·mm / g≤T1 / m1≤4.63 N·mm / g.

[0026] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. The above-mentioned application contents can be combined arbitrarily, and these and other purposes of the present application will be fully embodied through the following detailed description and drawings.

[0027] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the rotation process of the angle adjustment component according to an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the detection device structure according to an embodiment of the present invention;

[0031] Figure 3 This is a schematic diagram of the detection device structure according to an embodiment of the present invention;

[0032] Figure 4 This is an assembly diagram of the angle adjustment component, the base, and the resistance adapter according to an embodiment of the present invention;

[0033] Figure 5 This is a structural schematic diagram of the base and resistance adapter in one embodiment of the present invention;

[0034] Figure 6 This is a cross-sectional view of an angle adjustment component, a base, and a resistance adapter according to an embodiment of this utility model;

[0035] Figure 7 This is a schematic diagram of the detection device structure according to an embodiment of the present invention;

[0036] Figure 8 This is an assembly diagram of the detection body and the angle adjustment component according to an embodiment of the present invention;

[0037] Figure 9 This is a cross-sectional view of a detection device according to an embodiment of the present invention;

[0038] Figure 10 This is an assembly diagram of the angle adjustment component, the base, and the resistance adapter according to an embodiment of the present invention;

[0039] Figure 11 This is an assembly diagram of the angle adjustment component, base, and resistance adapter according to an embodiment of the present invention. Detailed Implementation

[0040] In the description of the utility model, the terms "inner", "outer", "horizontal", "vertical", "upper", "lower", "top", "bottom", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and do not require the utility model to be necessarily constructed and operated in a particular orientation, and therefore should not be understood as limiting the utility model.

[0041] In the description of the utility model, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features.

[0042] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connection" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or can communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0043] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. The technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the technical personnel in the art. When the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0044] Please refer to Figures 1-11 The utility model provides a plurality of embodiments of detection device 100 will be specifically explained. Among them, detection device 100 is used to detect environmental parameters, the environmental parameters here can be understood as one or more parameter data capable of representing the current environmental state, and detection device 100 can detect one kind of parameter data, also can detect multiple parameter data simultaneously. Exemplarily, the environmental parameters can be, for example, infrared signals (for biological detection), microwave signals (for active human body detection), and then, the corresponding detection device 100 can be formed into a biological monitoring device with biological monitoring capability, which can detect whether there is a living being in the current environment, or a human body detection device with microwave detection capability, which can detect whether there is a human body in the current environment.

[0045] As Figures 1-3As shown, a feasible embodiment of the detection device 100 is given. Specifically, the detection device 100 comprises a base 2, an angle adjusting member 3, and a detection main body 1, the side end of the angle adjusting member 3 is rotationally connected to the base 2; the detection main body 1 is used for detecting an environmental parameter, the detection main body 1 is connected to the angle adjusting member 3, and the angle adjusting member 3 is rotated relative to the base 2 to adjust the detection direction of the detection main body 1.

[0046] It can be understood that the base 2 is used for carrying the detection main body 1 and can be connected to the surface of an object such as a wall, a cabinet, a door, etc., and the angle adjusting member 3 is rotated relative to the base 2 to adjust the detection direction of the detection main body 1.

[0047] The environmental parameter reflects the environmental state. For example, in the application scenario of a human body detection device, the environmental parameter can include an infrared signal and / or a microwave signal, thereby being capable of realizing the state detection of the movement and / or micro-motion of a human body in the environment. The movement of the human body can be understood as the limb activity of the human body, and the micro-motion of the human body can be understood as the subtle movement of the human body such as breathing and heartbeat. The realization of the state detection of the movement and / or micro-motion of the human body in the environment can be understood as that the detection main body 1 can be a pyroelectric infrared sensor capable of detecting the limb activity of the human body through an infrared signal, or a radar sensor capable of detecting the limb activity and subtle movement of the human body through a microwave signal, or a combination of a pyroelectric infrared sensor and a radar sensor capable of jointly detecting the limb activity and subtle movement of the human body through an infrared signal and a microwave signal.

[0048] In an embodiment, as shown in FIG. 2, the detection device 100 further comprises a display 4 connected to the detection main body 1, and the display 4 is used for displaying the detection result of the detection main body 1. Figure 9As shown, the detection body 1 comprises a detection module 11, which comprises a pyroelectric infrared detection unit 111 and a radar detection unit 112. The pyroelectric infrared detection unit 111 can passively sense infrared light emitted by a human body. Its advantages are low power consumption and low cost, but it cannot detect a stationary human body. The radar detection unit 112 can actively emit radar detection waves and receive reflected radar detection waves. Based on the Doppler principle, it can determine whether there is a moving human body or object in the detection area. Its advantage is that it can detect the subtle movements of a human body. When a human body is stationary, it can also detect whether there is a person by detecting the breathing and heartbeat of the human body. However, the radar detection unit 112 needs to continuously emit radar detection waves when working, which results in high power consumption. In this embodiment, the pyroelectric infrared detection unit 111 and the radar detection unit 112 are combined. When there is no person in the detection area, only the infrared detection unit works to save power. When a person appears in the detection area, the pyroelectric infrared detection unit 111 is triggered, and then the radar detection unit 112 is switched to work, so as to ensure the detection sensitivity and avoid the situation that the human body is not detected when it is stationary. In this way, the detection sensitivity of the detection device 100 is ensured, and the power consumption is saved, so that the battery life of the detection device 100 can be guaranteed when it is powered by a battery.

[0049] As shown in Figure 2 , when the angle adjusting part 3 is adjusted to a suitable angle, it is necessary to keep the angle from changing due to gravity or vibration, so as to ensure the stability of the detection direction of the detection body 1. For this purpose, as shown in Figure 3 and Figure 4 , the detection device 100 further comprises a resistance adapting part 4, which is arranged between the angle adjusting part 3 and the base 2. The angle adjusting part 3 generates a first rotation resistance based on the resistance adapting part 4, and the first rotation resistance is used to maintain the stability of the detection direction. Wherein, the angle adjusting part 3 generates a first rotation resistance based on the resistance adapting part 4 can be understood as that the resistance adapting part 4 generates a normal force between the angle adjusting part 3 and the base 2, thereby generating a friction torque that hinders rotation, and the friction torque forms the first rotation resistance (as shown in the embodiment of Figures 1-10 ); or it can also be understood that the resistance adapting part 4 provides a rotation shaft for the rotation connection, and the angle adjusting part 3 rotates based on the rotation shaft, thereby generating the first rotation resistance (as shown in the embodiment of Figure 11 ).

[0050] In the design, the first rotation resistance is designed to be greater than a first critical value, so as to overcome the influence of the gravity of the detection body 1 and the angle adjusting member 3 and the influence of vibration, and maintain the detection direction stable. In an exemplary embodiment, the weight of the detection body 1 is 24.7 g, the sum of the weight of the detection body 1 and the angle adjusting member 3 is 27.2 g, and the first critical value of the first rotation resistance is 13.3 N·mm, that is, in this embodiment, the first rotation resistance is greater than 13.3 N·mm to maintain the detection direction stable.

[0051] Of course, the first rotation resistance is not the larger the better, for example, as shown in the figure, the angle adjusting member 3 rotates relative to the base 2 to generate the first rotation resistance T1, when the first rotation resistance T1 increases, the operating force F needs to be increased synchronously to drive the angle adjusting member 3 to rotate, and correspondingly, the deformation amount of the base 2 and the angle adjusting member 3 also increases. When the operating force F is removed, the deformation amount of the base 2 and the angle adjusting member 3 recovers, the angle adjusting member 3 appears "rebound" phenomenon, which causes the detection direction to deviate, and the user is difficult to accurately control the detection direction. Figure 1

[0052] To solve the problem that the detection direction deviates when the operating force is removed, the first rotation resistance is adjusted to adapt to the rigidity of the base 2 and the angle adjusting member 3, so that when the operating force driving the angle adjusting member 3 to rotate is removed, the angle adjusting member 3 does not rebound or the rebound angle is less than 4°. The first rotation resistance adapting to the rigidity of the base 2 and the angle adjusting member 3 can be understood as that the first rotation resistance value is adaptively designed according to the rigidity of the base 2 and the angle adjusting member 3, so that the rebound angle of the angle adjusting member 3 is less than 4°, thereby reducing the deviation of the detection direction, and enabling the user to more accurately control the detection direction.

[0053] Further, when the rebound angle of the angle adjusting member 3 is exactly 4°, the corresponding first rotation resistance value is set as a second critical value, that is, when the first rotation resistance is less than the second critical value, the rebound angle of the angle adjusting member 3 is less than 4°. In an embodiment, the sum of the weight of the detection body 1 and the angle adjusting member 3 is 27.2 g, and the second critical value of the first rotation resistance is 126 N·mm.

[0054] ​In an embodiment, the first rotation resistance is controlled between a first threshold value and a second threshold value, so as to maintain the stability of the detection direction and improve the accuracy of the detection direction adjustment. The sum of the weight of the detection main body 1 and the angle adjustment member 3 is denoted as m1, and the first rotation resistance is denoted as T1. The ratio of T1 to m1 satisfies the relationship: 0.49 N·mm / g≤T1 / m1≤4.63 N·mm / g, so that the angle adjustment member 3 not only can maintain the stability of the detection direction, but also has a rebound angle less than 4° when the operating force F is removed, thereby improving the accuracy of the detection direction adjustment.

[0055] In some embodiments, as shown in Figures 3-6 The base 2 has a first friction surface 211, and the angle adjustment member 3 has a second friction surface 311 directly or indirectly abutting against the first friction surface 211. When the angle adjustment member 3 rotates relative to the base 2, kinetic friction is generated between the second friction surface 311 and the first friction surface 211, and the kinetic friction forms the first rotation resistance. The indirect abutment can be understood as that a sheet is clamped between the first friction surface 211 and the second friction surface 311, and the first friction surface 211 abuts against the second friction surface 311 through the sheet. The kinetic friction generated between the second friction surface 311 and the first friction surface 211 can be direct friction or indirect friction through the sheet. In a preferred embodiment, the first friction surface 211 directly abuts against the second friction surface 311, and direct friction is generated between the two.

[0056] The resistance adapter 4 has a threaded column 41 penetrating through the first friction surface 211 and the second friction surface 311. The resistance adapter 4 adjusts the normal pressure between the first friction surface 211 and the second friction surface 311 through the threaded column 41, and further adjusts the first rotation resistance. In this embodiment, the first rotation resistance is adjusted by operating the threaded column 41, so that the first rotation resistance can be infinitely adjusted, so as to be adjusted to the first threshold value and the second threshold value, and to be adjusted to an optimal value. In addition, the tightening torque value of the resistance adapter 4 can be set to ensure that the first rotation resistance of products of each batch is consistent.

[0057] Further, as shown in Figures 3-6As shown, the side end of the angle adjusting piece 3 is provided with a connecting part 31, the base 2 is provided with a connecting groove 21, the connecting part 31 is embedded in the connecting groove 21, one end of the connecting part 31 is provided with the resistance adapting piece 4, and the other end is not provided with the resistance adapting piece 4; the end face of the connecting part 31 close to the resistance adapting piece 4 constitutes the second friction surface 311, and the end face of the connecting groove 21 close to the resistance adapting piece 4 constitutes the first friction surface 211. Compared with the connecting part 31 provided with the resistance adapting piece 4 at both ends, the connecting part 31 of the embodiment is provided with the resistance adapting piece 4 at only one end, which has the following advantages:

[0058] 1. If the connecting part 31 is provided with the resistance adapting piece 4 at both ends, the first rotation resistance generated by the two resistance adapting pieces 4 will be superimposed, which greatly increases the difficulty of adjusting the first rotation resistance, and it is difficult to adjust the first rotation resistance to the optimal value, and it is difficult to ensure that the first rotation resistance of products produced in different batches is consistent. The connecting part 31 of the embodiment is provided with the resistance adapting piece 4 at only one end, and the tightening degree of the resistance adapting piece 4 is linearly related to the first rotation resistance, which reduces the difficulty of adjusting the first rotation resistance, easily adjusts the first rotation resistance to the optimal value, and can ensure that the first rotation resistance of products produced in different batches is consistent.

[0059] 2. The first rotation resistance generated by the two resistance adapting pieces 4 will be superimposed, which makes the first rotation resistance easily exceed the second critical value, and loosening the resistance adapting piece 4 is needed to reduce the first rotation resistance, and there is a risk of loosening the resistance adapting piece 4. The connecting part 31 of the embodiment is provided with the resistance adapting piece 4 at only one end, so that the first rotation resistance of the resistance adapting piece 4 in the tightened state does not easily exceed the second critical value, eliminating the risk of loosening the resistance adapting piece 4.

[0060] 3. If the connecting part 31 is provided with the resistance adapting piece 4 at both ends, the tightening force of the two resistance adapting pieces 4 will conflict with each other, and the two tightening forces will be related, which makes it difficult to tighten the two tightening forces to the target value at one time during assembly, reducing the assembly efficiency. The connecting part 31 of the embodiment is provided with the resistance adapting piece 4 at only one end, so that the tightening force of the resistance adapting piece 4 can be tightened to the target value at one time, and the assembly efficiency is improved. Moreover, the number of resistance adapting pieces 4 in the embodiment is less, and the assembly efficiency is further improved.

[0061] Since the connecting part 31 is provided with the resistance adapting piece 4 at only one end, the constraint force of the resistance adapting piece 4 as the rotating shaft is weak, and the angle adjusting piece 3 will have a tendency to tilt and shake when rotating, and the angle adjusting piece 3 has a risk of falling off. To solve this problem, in the embodiment, the end face of the connecting part 31 close to the resistance adapting piece 4 is provided with a limiting groove 32, and the end face of the connecting groove 21 close to the resistance adapting piece 4 is provided with a limiting protrusion 22, the limiting groove 32 is matched with the limiting protrusion 22, and the limiting groove 32 is matched with the limiting protrusion 22. Figure 6As shown, the end faces of the connecting portion 31 are in abutment with the end faces of the connecting groove 21, so that the end faces of the connecting groove 21 limit the connecting portion 31 in the plane, making the angle adjusting member 3 rotate more stably and avoiding tilting and shaking. At the same time, the connecting portion 31 is in abutment with the connecting groove 21, which can prevent the connecting portion 31 from being separated from the base 2 and the angle adjusting member 3 from falling off.

[0062] Further, as shown in Figure 4 and Figure 3 the connecting portion 31 protrudes towards the base 2, so that the connecting portion 31 overlaps the base 2 in thickness, thereby the connecting portion 31 does not increase the thickness and is conducive to reducing the overall thickness of the base 2 and the angle adjusting member 3.

[0063] In some embodiments, as shown in Figures 4-6 the resistance adapting member 4 includes the threaded column 41 and the screw cap 42 arranged at one end of the threaded column 41, the screw cap 42 is used to receive a screwing operation to drive the threaded column 41 to rotate, the second friction surface 311 of the connecting portion 31 is provided with a connecting hole 312, the first friction surface 211 of the connecting groove 21 is provided with a first through hole 212 corresponding to the connecting hole 312, the threaded column 41 passes through the first through hole 212 and is connected to the connecting hole 312, the diameter of the first through hole 212 is smaller than the diameter of the screw cap 42, when the screw cap 42 is tightened, the screw cap 42 drives the end wall of the connecting groove 21 to press the connecting portion 31, thereby increasing the normal pressure between the first friction surface 211 and the second friction surface 311, and the first rotation resistance is increased accordingly. The threaded column 41 constitutes the rotation shaft of the angle adjusting member 3.

[0064] Further, as shown in Figure 4 the base 2 is configured in a round cake shape, the connecting groove 21 is configured as a square notch arranged on the side surface of the base 2, and the first through hole 212 penetrates the side surface of the base 2 to the first friction surface 211 of the connecting groove 21. One end of the first through hole 212 close to the side surface of the base 2 is provided with a containing groove 24, and the containing groove 24 is used to contain the screw cap 42 of the resistance adapting member 4.

[0065] Further, as shown in Figure 5 the bottom of the base 2 is fixedly installed with a magnetic member 22, the magnetic member 22 protrudes from the bottom of the base 2, and the base 2 is magnetically connected to the ferrous surface through the magnetic member 22. In a preferred embodiment, the magnetic member 22 adopts magnetic rubber. The magnetic connection has two advantages: 1. improving the flexibility of the installation position; 2. as shown in Figure 2As shown, the base 2 can be horizontally rotated based on the magnetic surface, and the angle adjusting member 3 is rotationally connected with the base 2, so that the detection direction can be adjusted to cover any angle in the three-dimensional space.

[0066] In some embodiments, as shown in Figure 8 and Figure 9 As shown, the detection body 1 further comprises a shell 12, a button cell 13 and an end cover 14. The shell 12 is configured as a cylinder with both ends open. The angle adjusting member 3 is arranged at the first open end of the shell 12, and the end cover 14 is arranged at the second open end of the shell 12. The detection module 11 and the button cell 13 are arranged inside the shell 12, and the detection direction of the detection module 11 is opposite to the second open end. The angle adjusting member 3 is configured as a disc which is adapted to the first open end. The angle adjusting member 3 is circumferentially provided with a plurality of buckles 321, and the inner wall of the shell 12 is provided with a plurality of sockets 121 which are adapted to the buckles 321. The angle adjusting member 3 is rotationally connected with the first open end of the shell 12.

[0067] The detection body 1 further comprises a first circuit board 15 and a second circuit board 16 which are arranged inside the shell 12. The first circuit board 15 is placed towards the second open end, and the pyroelectric infrared detection unit 111 is arranged on the first circuit board 15 which faces the second open end. The pyroelectric infrared detection unit 111 has an infrared sensing surface on the top thereof, and the infrared sensing surface is used for sensing the change of infrared light. The end cover 14 is provided with a lens 19 which is arranged at a position deviated from the center of the end cover 14. The center of the infrared sensing surface corresponds to the center of the lens 19, and the lens 19 is used for converging the light in the detection area on the infrared sensing surface, so as to enhance the sensitivity of the pyroelectric infrared detection unit 111. The lens 19 is a convex lens array similar to the shape of a tortoise shell. The infrared sensing surface is arranged near the focal point of the lens 19. In an embodiment, the focal length of the lens 19 is 6 mm. The pyroelectric infrared detection unit 111 is a HS312 binary pyroelectric infrared sensor of Sensirion Sensing Technology Co., Ltd. The pyroelectric infrared detection unit 111 is lifted by a cylindrical gasket, so that the infrared sensing surface is located near the focal point of the lens 19.

[0068] The second circuit board 16 is mounted on the side of the first circuit board 15 facing the end cover 14. The radar detection unit 112 is disposed on the second circuit board 16, facing the end cover 14. The radar detection unit 112 emits radar detection waves that pass through the end cover 14 and are reflected back to the radar detection unit 112 after being reflected by objects within the detection area. The radar detection waves determine whether there is a moving human body or object within the detection area based on the Doppler principle. In one embodiment, the radar detection unit 112 uses a radar chip of model SGR1101T, and the frequency of the radar detection waves is 24GHz.

[0069] Furthermore, the end cap 14 and the outer shell 12 are sealed together by sealant, and the lens and the end cap 14 are sealed together by sealant.

[0070] Furthermore, such as Figure 5 As shown, a first reinforcing wall 23 is provided around the bottom edge of the base 2. The first reinforcing wall 23 is used to strengthen the rigidity of the base 2, so as to reduce the deformation of the base 2, thereby reducing the rebound of the angle adjustment member 3, making the detection direction adjustment more accurate.

[0071] According to the above record, such as Figure 1 As shown, if the first rotational resistance T1 is too small, the detection direction will change due to gravity or vibration, and the detection direction will be unstable. When the first rotational resistance T1 is large, the operating force F required to drive the angle adjustment component 3 will also be large. Correspondingly, the base 2 and the angle adjustment component 3 will have a large deformation. When the operating force F is removed, the deformation of the base 2 and the angle adjustment component 3 will recover, and the angle adjustment component 3 will exhibit a "rebound" phenomenon, causing the detection direction to deviate. Furthermore, due to the "rebound" phenomenon of the angle adjustment component 3, it is difficult for the detection direction to reach the vertical direction.

[0072] To solve the above problems, such as Figure 7 As shown, the angle adjusting member 3 exists in a first state during rotation. In this first state, the lower surface of the angle adjusting member 3 is parallel to the upper surface of the base 2, and there is a reserved gap 34 between them. The reserved gap 34 provides rebound space for the angle adjusting member 3, that is, when the angle adjusting member 3 rotates to the vertical state, it can still rotate clockwise by a certain angle to ensure that the angle adjusting member 3 can reach the vertical state after rebounding. This ensures that even when the first rotational resistance T1 is large, the detection direction can still reach the vertical direction. In one embodiment, the reserved gap 34 is 0.5mm.

[0073] like Figure 8 and Figure 9As shown, the detection main body 1 further comprises a middle shell 17, the first circuit board 15 is fixedly abutted by the middle shell 17, the bottom of the middle shell 17 is provided with a battery compartment, the button cell 13 is installed in the battery compartment, the angle adjusting piece 3 is provided with a battery abutting rib 33 protruding upward, the battery abutting rib 33 abuts the bottom of the button cell 13 to prevent the button cell 13 from being separated from the battery compartment.

[0074] Further, as Figure 8 shown, the upper surface of the angle adjusting piece 3 is provided with a second reinforcing wall 32 around the edge, the second reinforcing wall 32 protrudes upward from the angle adjusting piece 3, and the buckle 321 is arranged outside the second reinforcing wall 32. When assembled, the angle adjusting piece 3 covers the first open end of the outer shell 12, the second reinforcing wall 32 is embedded in the outer shell 12, and the buckle 321 is rotatably connected to the socket 121. Among them, the second reinforcing wall 32 can increase the rigidity of the angle adjusting piece 3, reduce the deformation amount of the angle adjusting piece 3, and further reduce the rebound amount of the angle adjusting piece 3, so that the detection direction adjustment is more accurate.

[0075] As Figure 9 shown, an annular sealing groove is formed between the middle shell 17 and the outer shell 12, a sealing ring 18 is arranged in the annular sealing groove, the second reinforcing wall 32 of the angle adjusting piece 3 abuts the sealing ring 18, and the sealing ring 18 is located at the junction between the middle shell 17, the outer shell 12 and the second reinforcing wall 32, thereby sealing the three.

[0076] As Figure 9 shown, the left side of the first circuit board 15 is provided with an electronic switch 151 near the edge, the trigger rod of the electronic switch 151 protrudes leftward from the first circuit board 15, the sidewall of the outer shell 12 is provided with a key hole opposite the electronic switch 151, and a silica gel key 122 is embedded in the key hole, the silica gel key 122 is used to trigger the electronic switch 151. The sidewall of the silica gel key 122 is inwardly recessed to form a clamping ring, the clamping ring is clamped in the key hole, so that the silica gel key 122 is limited in the key hole, and the silica gel key 122 is in interference fit with the key hole, so as to realize the sealed connection between the silica gel key 122 and the outer shell 12. It is worth mentioning that the silica gel key 122 protrudes from the side of the outer shell 12, so as to facilitate the pressing force applied to the silica gel key 122.

[0077] In some embodiments, as Figure 10As shown, the difference between the embodiment and the above-mentioned embodiments is that the connecting portion 31 is provided with the resistance adapting piece 4 at both ends; the end faces of the connecting portion 31 at both ends are in abutment with the end faces of the connecting groove 21 at both ends, the end faces of the connecting groove 21 at both ends constitute the first friction surface 211, and the end faces of the connecting portion 31 at both ends constitute the second friction surface 311. The connecting portion 31 is provided with the connecting hole 312 at both ends, and the connecting groove 21 is provided with the first through hole 212 at both ends; the resistance adapting piece 4 at both ends of the connecting portion 31 passes through the corresponding first through hole 212 and is connected to the connecting hole 312, and the threaded columns 41 of the two resistance adapting pieces 4 constitute the rotating shaft of the angle adjusting piece 3 together.

[0078] In the embodiment, the first rotating resistance is generated at both ends of the connecting portion 31, and the two first rotating resistances are superimposed. By adjusting the tightening force of the two resistance adapting pieces 4, the rotating resistance after superimposition of the two rotating resistances reaches between the first critical value and the second critical value.

[0079] Compared with the embodiments of Figures 4-6 , the angle adjusting piece 3 of the embodiment is connected to the base 2 through the two resistance adapting pieces 4, thereby improving the rotating stability.

[0080] In some embodiments, as Figure 11 shown, the difference between the embodiment and the above-mentioned embodiments is that the resistance adapting piece 4 no longer has the threaded column 41 and the screw cap 42; in the embodiment, the resistance adapting piece 4 is configured as a bolt pin, the bolt pin transversely penetrates the connecting portion 31 and rotationally connects the connecting portion 31 and the base 2, and the bolt pin forms the rotating shaft of the angle adjusting piece 3; the end faces of the connecting portion 31 at both ends are in abutment with the end faces of the connecting groove 21 at both ends, so that the connecting portion 31 generates the first rotating resistance when rotating. The bolt pin can be a pin, a rivet or other bolt pin structure; since the bolt pin does not provide tension, the size of the first rotating resistance depends on the interference amount between the connecting portion 31 and the connecting groove 21; the greater the interference amount, the greater the abutment force between the connecting portion 31 and the connecting groove 21, and the greater the first rotating resistance. In design, the interference amount is reasonably designed to make the first rotating resistance reach between the first critical value and the second critical value.

[0081] Compared with the embodiments of Figures 4-6 and Figure 10The embodiment needs to control the first rotation resistance by controlling the tightening force of the resistance adapting part 4, and the embodiment controls the first rotation resistance by controlling the interference between the connecting part 31 and the connecting groove 21, which is more conducive to ensuring that the first rotation resistance of the products produced in batches is consistent, because the interference between the connecting part 31 and the connecting groove 21 is determined by the mold used in production, and as long as the mold is not changed, the interference between the connecting part 31 and the connecting groove 21 produced in batches can be ensured to be consistent without human intervention.

[0082] In an embodiment, as shown in Figure 11 The connecting part 31 is transversely provided with a connecting hole 312, the base 2 is respectively provided with a first through hole 212 corresponding to the connecting hole 312 at both ends of the connecting groove 21, the earring needle 43 is placed in the connecting hole 312, and both ends of the earring needle 43 are inserted into the first through hole 212, so as to realize the rotary connection between the connecting part 31 and the base 2.

[0083] The earring needle 43 includes a main rod 431 and spring needles 432 arranged at both ends of the main rod 431, the spring needles 432 can extend or retract from the main rod 431, and the length of the main rod 431 is shorter than the width of the connecting groove 21, in the assembly, the main rod 431 is placed in the connecting hole 312 first, and then the spring needles 432 at both ends are compressed to the shortest, the connecting part 31 is embedded in the connecting groove 21, when the connecting hole 312 is opposite to the first through hole 212, the spring needles 432 are ejected from the main rod 431 and inserted into the first through hole 212, so as to realize the rotary connection between the connecting part 31 and the base 2. The earring needle 43 is used as the latch in the embodiment, so that the assembly efficiency is improved, and the connection stability of the earring needle 43 is good, and the earring needle 43 will not fall off in normal use.

[0084] In addition, it should be noted that the above-mentioned embodiments can be combined with each other, and the same or similar concepts or processes can not be described in some embodiments, that is, the technical solutions disclosed in the later embodiments (in the order of the text) should include the technical solutions recorded in the embodiment and the technical solutions recorded in all the previous embodiments.

[0085] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, but not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A detection device, characterized in that, The application relates to an angle adjusting device, which comprises a base, an angle adjusting part, a detecting main body and a resistance adapting part. The angle adjusting part is rotatably connected to the base. The detecting main body is used for detecting environmental parameters and is connected to the angle adjusting part to adjust the detecting direction when the angle adjusting part rotates relative to the base. The resistance adapting part is arranged between the angle adjusting part and the base. The angle adjusting part generates a first rotating resistance based on the resistance adapting part, which is used for maintaining the stability of the detecting direction.

2. The detection device of claim 1, wherein, The first rotating resistance is adapted to the rigidity of the base and the angle adjusting part, so that the angle adjusting part does not rebound or rebounds by less than 4 degrees when the operating force driving the rotation of the angle adjusting part is removed. The base has a first friction surface, and the angle adjusting part has a second friction surface directly or indirectly abutting against the first friction surface.

3. The detection device of claim 2, wherein, When the angle adjusting part rotates relative to the base, dynamic friction is generated between the second friction surface and the first friction surface.

4. The detection device of claim 3, wherein, The resistance adapting part has a threaded column, which passes through the first friction surface and the second friction surface.

5. The detection device of claim 2, wherein, The resistance adapting part adjusts the normal pressure between the first friction surface and the second friction surface through the threaded column, thereby adjusting the first rotating resistance.

6. The detection device according to any one of claims 3 to 5, characterized in that The side end of the angle adjusting part is provided with a connecting part, the base is provided with a connecting groove, the connecting part is embedded in the connecting groove, one end of the connecting part is provided with the resistance adapting part, and the other end of the connecting part is not provided with the resistance adapting part. The end face of the connecting part close to the resistance adapting part constitutes the second friction surface, and the end face of the connecting groove close to the resistance adapting part constitutes the first friction surface. The end faces of the connecting part at both ends are respectively in abutment with the end faces of the connecting groove at both ends. The end of the angle adjusting part is provided with a connecting part, the base is provided with a connecting groove, the connecting part is embedded in the connecting groove, and the connecting part at both ends is respectively provided with the resistance adapting part. The end faces of the connecting part at both ends are respectively in abutment with the end faces of the connecting groove at both ends, the end faces of the connecting groove at both ends constitute the first friction surface, and the end faces of the connecting part at both ends constitute the second friction surface. The resistance adapting part comprises the threaded column and a screw cap arranged at one end of the threaded column. The second friction surface of the connecting part is provided with a connecting hole, the first friction surface of the connecting groove is provided with a first through hole corresponding to the connecting hole, the threaded column passes through the first through hole and is connected to the connecting hole, and the threaded column constitutes the rotating shaft of the angle adjusting part.

7. The detection device of claim 1, wherein, The end of the angle adjusting piece is provided with a connecting part, the base is provided with a connecting groove, and the connecting part is embedded in the connecting groove; the resistance adapting piece is configured as an ear needle, the connecting part is provided with a connecting hole transversely penetrating through, the base is provided with a first through hole corresponding to the connecting hole at two ends of the connecting groove, the ear needle is placed in the connecting hole, the two ends of the ear needle are inserted into the first through hole, so that the connecting part is rotationally connected with the base, and the ear needle forms a rotation shaft of the angle adjusting piece; the two ends of the connecting part are attached to the two ends of the connecting groove, so that the first rotation resistance is generated when the connecting part rotates.

8. The detection device according to any one of claims 1 to 5, 7, characterized in that, The environmental parameters include infrared signals and / or microwave signals. The detection main body includes a shell, a detection module, a button cell and an end cover, the shell is configured as a cylindrical shape with two open ends, the angle adjusting piece is covered on the first open end of the shell, the end cover is covered on the second open end of the shell, the detection module and the button cell are arranged inside the shell, and a detection direction of the detection module faces a direction opposite to the second open end. The bottom of the base is provided with a first reinforcing wall around an edge thereof, and the first reinforcing wall is used for reinforcing rigidity of the base.

9. The detection device of claim 1, wherein, The angle adjusting piece has a first state in a rotation process, in the first state, a lower surface of the angle adjusting piece is parallel to an upper surface of the base, and a reserved gap is formed between the lower surface and the upper surface.

10. The detection device according to any one of claims 1 to 5, 7, 9, characterized in that, The sum of the weight of the detection main body and the angle adjusting piece is m1, the first rotation resistance is T1, and a ratio of T1 to m1 satisfies a relationship: 0.49 N·mm / g≤T1 / m1≤4.63 N·mm / g.

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