Infrared switch with good safety

Abstract

The utility model relates to the technical field of infrared switches, and particularly discloses an infrared switch with good safety, which comprises a front panel and a rear shell, the inner wall of the rear shell is provided with a threading hole, and the front surface of the rear shell is fixedly connected with a rear blocking frame. When the rear shell is installed in a front preset hole groove, the rear shell is firstly inserted into the hole groove along the rear blocking frame, then a cross screwdriver or other electric operation tools are utilized to be inserted into the cross head and rotate, the shaft column connected with the cross head rotates, meanwhile, the first bevel gear at one end of the shaft column is in meshed transmission with the second bevel gear, and the rear shell is installed in the hole groove. The push plates in threaded connection with the outer sides can slide away from each other, the push plates are connected with abutting blocks, and the abutting blocks stretch out of through holes in the rear shell to abut against the inner wall of a prefabricated hole groove in the wall face, so that rapid installation of the rear shell can be completed. Therefore, the installation efficiency of the infrared switch body can be greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of infrared switches, in particular to an infrared switch with good safety. Background Art

[0002] Infrared switch is an automatic control switch based on infrared sensing technology. It realizes its automatic control function by sensing the infrared heat emitted from the outside world. Specifically, the infrared switch uses the reflection or scattering of infrared rays to detect the existence or movement of an object. When the object enters its sensing range, the infrared switch will automatically connect or disconnect the circuit to control the opening or closing of related equipment. Infrared switches have many advantages, such as no contact, high reliability, and long life. Therefore, they are widely used in various automatic control systems, such as the control of lamps, automatic doors, burglar alarms and other equipment. In addition, infrared switches also have a variety of structures and types. For example, according to different detection methods, they can be divided into reflective, opposite-beam, and mirror-reflective types; according to different structures, they can be divided into amplifier separation type, amplifier built-in type, and power supply built-in type. These different types of infrared switches have different application occasions and functional characteristics, and can be selected and used according to actual needs.

[0003] The infrared detection switch with switch and wifi disclosed in publication number CN106325167A is characterized by comprising an infrared detection switch body including at least two working modes and a switch button for switching the working modes of the infrared detection switch body. The working modes of the infrared detection switch body include a normal mode, a continuous no-sensing off mode and a continuous no-sensing on mode; in the normal mode, the infrared detection switch body does not start infrared detection and is only used as a normal switch; in the continuous no-sensing off mode, the infrared detection switch body automatically closes after a period of no sensing; in the continuous no-sensing on mode, the infrared detection switch body continues to maintain the on / off state of the external line sensing switch after a period of no sensing.

[0004] Through the above-mentioned prior art, it can be understood that the shell of the infrared switch mainly includes two parts, one is the wall-mounted part and the other is the panel-mounted part. During the installation process, the shell of the wall-mounted part first needs to be pre-installed into the pre-opened wall groove of the wall using cement, and then the panel equipped with the infrared sensing element can be buckled on the wall-mounted part. However, the infrared switch still has some shortcomings in the installation structure. For example, the shell of the wall-mounted part cannot be directly installed in the preset hole of the wall, and the cement packaging needs to wait for air drying, which affects the installation efficiency. Secondly, during assembly, the panel part and the wall-mounted part are generally buckled together, but during actual installation, a flat-bladed flat-blade screwdriver needs to be used to pry open the panel part for subassembly and wiring. Excessive force during this process can easily cause damage to the panel shell of the infrared switch.

[0005] Therefore, we propose a safe infrared switch to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide an infrared switch with good safety to solve the problems mentioned in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides an infrared switch with good safety, comprising a front panel and a rear shell, the inner wall of the rear shell is provided with a threading hole, the front of the rear shell is fixedly connected with a rear baffle, the inner side of the rear shell is fixedly installed with an I-shaped block, the inner side of the I-shaped block is provided with a tightening mechanism, the inner side of the front of the front panel is provided with an infrared switch body, the back of the infrared switch body is provided with a wiring portion, the inner side of the front of the infrared switch body is provided with a sensing head, the front of the infrared switch body is threadedly installed with a protective cover, the back of the front panel is symmetrically provided with a connecting mechanism, the inner side of the rear baffle is symmetrically provided with a clamping hole, the front panel is clamped with the connecting mechanism and the clamping hole, the front of the infrared switch body is fixedly installed with a screw ring, the protective cover and the screw ring are threadedly installed, and the protective cover covers the sensing head;

[0008] The locking plate is rotatably connected to the locking plate, and the locking plate is rotatably connected to the locking plate by a thread. The locking plate is rotatably connected to the locking plate by a thread. The locking plate is rotatably connected to the locking plate by a thread. The locking plate is rotatably connected to the locking plate by a thread. The locking plate is rotatably connected to the locking plate by a thread.

[0009] The connecting mechanism includes a first mounting groove, which is symmetrically arranged on the back side of the front panel, a baffle is slidably connected to the inner side of the first mounting groove, springs are symmetrically fixedly installed on the opposite sides of the baffle and the first mounting groove, a clamping block is symmetrically fixedly installed on the side of the baffle away from the spring, the clamping end of the clamping block movably passes through the wall of the first mounting groove and is clamped in the clamping hole, and a push block is fixedly installed in the middle part of the side of the baffle away from the spring. Through the connecting mechanism, the front panel and the rear shell can be quickly disassembled conveniently.

[0010] In a further embodiment, a first slide rod is symmetrically fixedly installed on the inner side of the second mounting groove, the push plate is slidably connected to the outer side of the first slide rod, a support plate is symmetrically fixedly installed on the inner side of the mounting cavity, one end of the screw rod close to the second bevel tooth rotates and passes through the support plate, a threaded sleeve is fixedly installed on the inner side of the push plate, one end of the screw rod threadedly passes through the threaded sleeve, and the first slide rod at the second mounting groove can facilitate the sliding of the push plate in the second mounting groove, and a circular hole is provided on the inner side of the mounting plate through the support plate in the mounting cavity, so that one end of the screw rod can rotate in the circular hole provided in the support plate, thereby ensuring the stability of the screw rod and the stability of the meshing between the first bevel tooth on the shaft column and the second bevel tooth on the screw rod, and the push plate can be conveniently threadedly connected to the outer side of the screw through the threaded sleeve on the inner side of the push plate.

[0011] In a further embodiment, a second slide bar is symmetrically fixedly installed on the inner side of the first mounting groove, the baffle is slidably connected to the outer side of the second slide bar, the card-in end of the card block is inclined toward the side of the rear shell, the end of the push block away from the baffle slides through the inner wall of the first mounting groove, the front side of the rear baffle frame is symmetrically provided with grooves, the end of the push block away from the baffle movably passes through the groove, the second slide bar in the first mounting groove can facilitate the sliding of the baffle, and the push block can be conveniently extruded by movably passing through the groove, one end of the second slide bar also movably passes through the middle part of the spring, under the action of the baffle sliding and extruding the spring, the spring is deformed, and the stability of the spring can also be guaranteed.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] Firstly, in the present invention, when installing the rear shell in the front preset hole groove, first insert the rear shell into the rear baffle frame, then use a cross screwdriver or other electric operating tools to insert the cross head and rotate it, so that the shaft column connected to the cross head rotates, and at the same time, the first bevel gear at one end of the shaft column engages with the second bevel gear to drive the stud connected to the second bevel gear to rotate synchronously, and the screw at the second installation groove in the I-beam block rotates, so that the push plates connected with the outer threads can slide away from each other, and the push plates are connected by the tightening block, and the tightening block extends out of the through hole at the rear shell and tightens against the inner wall of the prefabricated hole groove on the wall to complete the rapid installation of the rear shell, thereby greatly improving the installation efficiency of the infrared switch body;

[0014] Secondly, in the utility model, on the basis of the installation of the rear shell, the front panel can be directly plugged into the rear baffle frame on the front side of the rear shell. During the insertion process, the card blocks extending from the edges of the two sides of the front panel contact the rear baffle frame. Under the extrusion force, the baffle connected to the card block slides in the first installation groove and compresses the spring. After the front panel is inserted and the card block corresponds to the position of the card hole, the spring resets and pushes the card block connected to the baffle into the card hole to fix it. When removing the front panel and the rear shell, you only need to squeeze the push block on the front panel at the same time. The push block pushes the baffle to slide in the first installation groove. At the same time, the card block connected to the push block is separated from the card hole. At this time, the front panel can be pulled out to the front side of the rear baffle frame to take it out, so that the front panel and the rear baffle frame of the rear shell can be easily disassembled and assembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a top view in the utility model;

[0017] Figure 3 It is an exploded view of the utility model;

[0018] Figure 4 For the utility model Figure 3 Enlarged view of point A in the middle;

[0019] Figure 5 It is a schematic diagram of the back structure of the front panel in the utility model;

[0020] Figure 6 For the utility model Figure 5 Enlarged view of point B in the middle;

[0021] Figure 7 This is a schematic diagram of the rear shell structure in the utility model;

[0022] Figure 8 It is a schematic diagram of the internal structure of the third installation slot in the utility model.

[0023] In the figure: 1, front panel, 2, rear shell, 3, connecting mechanism, 301, first mounting groove, 302, spring, 303, baffle, 304, block, 305, push block, 4, infrared switch body, 5, protective cover, 6, rear baffle, 7, threading hole, 8, sensor head, 9, screw ring, 10, card hole, 11, cutting groove, 12, I-block, 13, tightening mechanism, 131, second mounting groove, 132, screw, 133, tightening block, 134, push plate, 135, through hole, 136, shaft column, 137, crosshead, 138, first bevel gear, 139, second bevel gear, 1390, mounting cavity, 14, first slide bar, 15, wiring part, 16, second slide bar, 17, support plate, 18, screw sleeve. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 8 In the embodiment of the utility model, a safe infrared switch comprises a front panel 1 and a rear shell 2, the inner wall of the rear shell 2 is provided with a threading hole 7, the front of the rear shell 2 is fixedly connected with a rear baffle frame 6, the inner side of the rear shell 2 is fixedly installed with an I-shaped block 12, the inner side of the I-shaped block 12 is provided with a tightening mechanism 13, the inner side of the front of the front panel 1 is provided with an infrared switch body 4, the back of the infrared switch body 4 is provided with a wiring portion 15, the inner side of the front of the infrared switch body 4 is provided with a sensor head 8, the front of the infrared switch body 4 is threadedly installed with a protective cover 5, the back of the front panel 1 is symmetrically provided with a connecting mechanism 3, the inner side of the rear baffle frame 6 is symmetrically provided with a card hole 10, the front panel 1 is connected with the connecting mechanism 3 and the card hole 10, and the infrared switch body 4 is fixedly installed with a screw ring 9, and the protective cover 5 and the screw ring 9 are threadedly installed. The protective cover 5 covers the sensor head 8. Since the sensor head 8 on the front of the infrared switch body 4 is generally in a convex spherical shape, and the external packaging of the infrared switch body 4 on the market is generally paper, it is easy to cause the sensor head 8 to be squeezed and damaged during transportation. The protective cover 5 is threadedly installed through the screw ring 9 on the infrared switch body 4, and the safety of the sensor head 8 of the infrared switch body 4 can be guaranteed before the infrared switch body 4 is installed; the main basic structure of the infrared switch body 4 includes three parts: a transmitter, a receiver and a detection circuit. The transmitter is an important part of the infrared switch, which is responsible for emitting infrared light beams. These light beams generally come from light-emitting diodes or laser diodes, and are usually emitted in the form of pulses. The width or modulation mode of these pulses can be set according to specific needs. The emitted light beam will be continuously emitted in the target direction, or the pulse width will be changed to achieve detection of the target. The receiver is used to receive the infrared light beam emitted by the transmitter. It is mainly composed of a photodiode or a phototransistor, which can convert the received infrared light signal into an electrical signal. Optical elements such as lenses and apertures are usually installed in front of the receiver to focus and filter infrared light. The detection circuit is located behind the receiver. Its main function is to filter out effective signals and apply the signals. The detection circuit processes the received electrical signals to identify the existence or movement of objects and trigger the action of the switch accordingly. The infrared switch body 4 is a prior art and a product sold on the market, so it will not be described in detail. Its product structure can also refer to the Apple 86 infrared switch;

[0026] The tightening mechanism 13 includes a second mounting groove 131 and a mounting cavity 1390. The second mounting groove 131 is symmetrically arranged on the front side of the I-shaped block 12. A screw 132 is rotatably connected to the inner side of the second mounting groove 131. A push plate 134 is threadedly connected to the outer side of the screw 132. The push plate 134 is slidably connected to the inner side of the second mounting groove 131. A same through hole 135 is arranged between the groove wall of the second mounting groove 131 and the shell wall of the rear shell 2. A tightening block 133 is symmetrically arranged on one side of the push plate 134 facing the through hole 135. The mounting cavity 1390 is opened. The screw rod 132 is arranged inside the I-shaped block 12, and one end of the screw rod 132 away from the through hole 135 rotates and extends into the installation cavity 1390, and the second bevel gear 139 is fixedly installed inside. The front inner side of the I-shaped block 12 is rotatably connected with a shaft column 136, and one end of the shaft column 136 is fixedly installed with a cross head 137. The end of the shaft column 136 away from the cross head 137 rotates and extends into the installation cavity 1390, and the first bevel gear 138 is fixedly installed inside. The first bevel gear 138 and the second bevel gear 139 are meshingly connected. When the rear housing 2 is installed in the front preset hole groove, firstly The rear housing 2 is inserted into the rear baffle frame 6 along with the rear baffle frame 6, and then a cross screwdriver or other electric operating tool is used to insert the cross head 137 and rotate it, so that the shaft column 136 connected to the cross head 137 rotates, and at the same time, the first bevel gear 138 at one end of the shaft column 136 engages with the second bevel gear 139 to transmit the screw, so that the stud connected to the second bevel gear 139 rotates synchronously, and the screw rod 132 at the second mounting groove 131 in the I-shaped block 12 rotates, so that the push plates 134 connected to the outer thread can slide away from each other, and the push plates 134 are connected to the tight block by connecting 133, the pressing block 133 extends out of the through hole 135 at the rear shell 2 and presses against the inner wall of the prefabricated hole groove on the wall to complete the quick installation of the rear shell 2; there are gaps between the I-shaped block 12 and the rear shell 2, so the wire holes 7 at several places of the rear shell 2 are connected to the incoming wires without hindering the wiring, and there are rubber convexities at the end of the pressing block 133, which can increase friction and ensure the stability of the pressing against the inner wall of the prefabricated hole groove; there are gaps between the I-shaped block 12 and the rear shell 2, so after wiring, it will not affect the storage of the line in the rear shell 2;

[0027] The connecting mechanism 3 includes a first installation groove 301, which is symmetrically arranged on the back side of the front panel 1. A baffle 303 is slidably connected to the inner side of the first installation groove 301. A spring 302 is symmetrically fixedly installed on the opposite side of the baffle 303 and the first installation groove 301. A clamping block 304 is symmetrically fixedly installed on the side of the baffle 303 away from the spring 302. The clamping end of the clamping block 304 is movable through the groove wall of the first installation groove 301 and the clamping hole 10 for clamping. A push block 305 is fixedly installed in the middle of the side of the baffle 303 away from the spring 302. On the basis of the installation of the rear shell 2, the front panel 1 can be directly plugged into the rear baffle frame 6 on the front side of the rear shell 2. During the insertion process, the edges of the two sides of the front panel 1 The block 304 extending out from the rear baffle 6 contacts the rear baffle frame 6, and under the extrusion force, the baffle 303 connected to the block 304 slides in the first mounting groove 301 and compresses the spring 302. After the front panel 1 is inserted and the block 304 corresponds to the position of the card hole 10, the spring 302 resets and pushes the block 304 connected to the baffle 303 to be inserted into the card hole 10 to fix it. When removing the front panel 1 and the rear shell 2, you only need to squeeze the push block 305 on the front panel 1 at the same time. The push block 305 pushes the baffle 303 to slide in the first mounting groove 301, and at the same time, the block 304 connected to the push block 305 is separated from the card hole 10. At this time, the front panel 1 can be pulled out to the front side of the rear baffle frame 6.

[0028] See also Figure 4 and Figure 6 and Figure 8 The first slide bar 14 is symmetrically fixedly installed on the inner side of the second mounting groove 131, and the push plate 134 is slidably connected to the outer side of the first slide bar 14. The support plate 17 is symmetrically fixedly installed on the inner side of the mounting cavity 1390. The end of the screw 132 close to the second bevel tooth 139 rotates and passes through the support plate 17. A screw sleeve 18 is fixedly installed on the inner side of the push plate 134. One end of the screw 132 threadably passes through the screw sleeve 18. The screw 132 is rotated in the second mounting groove 131, so that the push plate 134 with the screw sleeve 18 threadedly connected to the outer side of the screw 132 slides on the first slide bar 14 in the second mounting groove 131, which can ensure the stability of the push plate 134. By adding the support plate 17 at the position of the screw 132 close to the second bevel tooth 139, the stability of the end of the screw 132 can be ensured.

[0029] See also Figure 3 and Figure 5-Figure 7The second slide bar 16 is symmetrically fixedly installed on the inner side of the first mounting groove 301, and the baffle plate 303 is slidably connected to the outer side of the second slide bar 16. The snap-in end of the card block 304 is inclined toward the side of the rear shell 2, and the end of the push block 305 away from the baffle plate 303 slides through the inner wall of the first mounting groove 301. The front side of the rear baffle frame 6 is symmetrically provided with grooves 11, and the end of the push block 305 away from the baffle plate 303 movably penetrates the groove 11. By using the baffle plate 303 to slide on the second slide bar 16 in the first mounting groove 301, its stability can be improved, and the push block 305 can conveniently separate the front panel 1 and the rear baffle frame 6 of the rear shell 2 by movably penetrating the groove 11 on the rear baffle frame 6.

[0030] The working principle of the utility model is as follows: during use, firstly, the line is passed through the threading hole 7 into the rear shell 2 according to the line entry position, and the rear shell 2 is inserted into it along the rear baffle frame 6, and then a cross screwdriver or other electric operating tool is used to insert the cross head 137 and rotate it, so that the shaft column 136 connected to the cross head 137 rotates, and at the same time, the first bevel gear 138 at one end of the shaft column 136 engages with the second bevel gear 139 to transmit, so that the stud connected to the second bevel gear 139 rotates synchronously, and the screw rod 132 at the second installation groove 131 in the I-shaped block 12 rotates, so that the push plate 134 connected with the outer thread can slide away from each other, and the push plate 134 is connected to the tightening block 133, and the tightening block 133 extends out of the through hole 135 at the rear shell 2 and tightens against the inner wall of the prefabricated hole groove on the wall to complete the rapid installation of the rear shell 2;

[0031] After the rear incoming line is connected to the wiring part 15 of the infrared switch body 4 of the front panel 1, the front panel 1 can be directly plugged into the rear baffle 6 on the front side of the rear shell 2. During the insertion process, the card blocks 304 extending from the edges of both sides of the front panel 1 contact the rear baffle 6. Under the extrusion force, the baffle 303 connected to the card block 304 slides in the first installation groove 301 and compresses the spring 302. After the front panel 1 is inserted and the card block 304 corresponds to the position of the card hole 10, the spring 302 resets and pushes the card block 304 connected to the baffle 303 to be inserted into the card hole 10 to fix it. Finally, when the front panel 1 and the rear shell 2 are installed, the protective cover 5 at the infrared switch body 4 can be removed.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A safe infrared switch, characterized in that: It comprises a front panel and a rear shell, wherein the inner wall of the rear shell is provided with a threading hole, the front of the rear shell is fixedly connected with a rear baffle, an I-shaped block is fixedly installed on the inner side of the rear shell, a tightening mechanism is provided on the inner side of the I-shaped block, an infrared switch body is provided on the inner side of the front of the front panel, a wiring portion is provided on the back of the infrared switch body, a sensing head is provided on the inner side of the front of the infrared switch body, a protective cover is threadedly installed on the front of the infrared switch body, a connecting mechanism is symmetrically provided on the back of the front panel, a clamping hole is symmetrically provided on the inner side of the rear baffle, and the front panel is clamped with the connecting mechanism and the clamping hole; The locking mechanism comprises a second mounting groove and a mounting cavity, the second mounting groove is symmetrically arranged on the front side of the I-shaped block, a screw is rotatably connected to the inner side of the second mounting groove, a push plate is threadedly connected to the outer side of the screw, the push plate is slidably connected to the inner side of the second mounting groove, a same through hole is arranged between the groove wall of the second mounting groove and the rear shell wall, a locking block is symmetrically arranged on the side of the push plate facing the through hole, the mounting cavity is arranged on the inner side of the I-shaped block, one end of the screw away from the through hole is rotatably extended into the inner side of the mounting cavity and a second bevel gear is fixedly installed, an axis column is rotatably connected to the inner side of the front side of the I-shaped block, a crosshead is fixedly installed on one end of the axis column, and one end of the axis column away from the crosshead is rotatably extended into the inner side of the mounting cavity and a first bevel gear is fixedly installed, and the first bevel gear and the second bevel gear are meshingly connected.

2. The infrared switch with good safety according to claim 1, characterized in that: A first sliding rod is symmetrically fixedly installed on the inner side of the second installation groove, and the push plate is slidably connected to the outer side of the first sliding rod.

3. The infrared switch with good safety according to claim 1, characterized in that: A support plate is symmetrically fixedly installed on the inner side of the installation cavity, and one end of the screw rod close to the second bevel gear rotates and penetrates the support plate.

4. The infrared switch with good safety according to claim 1, characterized in that: A screw sleeve is fixedly installed on the inner side of the push plate, and one end of the screw rod is threadedly penetrated through the screw sleeve.

5. The infrared switch with good safety according to claim 1, characterized in that: The connecting mechanism includes a first mounting groove, which is symmetrically opened on the back side of the front panel, a baffle is slidably connected to the inner side of the first mounting groove, springs are symmetrically fixedly installed on the opposite sides of the baffle and the first mounting groove, a clamping block is symmetrically fixedly installed on the side of the baffle away from the spring, the clamping end of the clamping block movably passes through the wall of the first mounting groove and is clamped in the clamping hole, and a push block is fixedly installed in the middle of the side of the baffle away from the spring.

6. The infrared switch with good safety according to claim 5, characterized in that: A second sliding rod is symmetrically fixedly installed on the inner side of the first installation groove, and the baffle is slidably connected to the outer side of the second sliding rod.

7. The infrared switch with good safety according to claim 5, characterized in that: The clamping end of the clamping block is inclined toward one side of the rear shell, and the end of the pushing block away from the baffle slides through the inner wall of the first installation groove.

8. The infrared switch with good safety according to claim 5, characterized in that: The front side of the rear baffle is symmetrically provided with slots, and one end of the push block away from the baffle plate movably passes through the slots.

9. The infrared switch with good safety according to claim 1, characterized in that: A screw ring is fixedly installed on the front of the infrared switch body, the protective cover and the screw ring are threadedly installed, and the protective cover covers the sensor head.

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