Laser alarm convenient to install

Abstract

The utility model relates to the technical field of laser alarms, and provides a laser alarm convenient to install, which comprises a shell, two transverse strips are fixedly connected to the top of the outer surface of the shell, a fixing plate is fixedly connected to the top of the outer surface of one transverse strip, a connecting plate is fixedly connected to the top of the outer surface of the other transverse strip, and the fixing plate is fixedly connected to the top of the outer surface of the other transverse strip. According to the fixing device, when the fixing device is used and a shell is taken up to be installed, the pull rod is pulled to drive the round block and the clamping rod to move from the interior of the clamping hole, the clamping rod is separated from the interior of the clamping hole after moving, the long strip moves towards the direction of the fixing plate under the limitation of the spring, and then the shell is installed. At the moment, the long strip drives the movable plate to move towards the fixed plate, at the moment, the movable plate and the fixed plate can clamp the whole device into an area where the alarm is used, the clamping rods are clamped in the clamping holes under the limiting effect of the springs to limit and fix the long strip, installation is easy, and only a pull rod needs to be pulled.

Description

Technical Field

[0001] The utility model relates to the technical field of laser alarms, in particular to a laser alarm which is easy to install. Background Art

[0002] A laser alarm generally refers to a security device that uses laser technology to detect intrusions. This type of alarm can be used in security systems in homes, commercial places, or military facilities. The working principle of a laser alarm is to determine whether an object has entered the set warning area by emitting a laser beam and detecting changes in the laser signal at the receiving end.

[0003] The existing patent document with publication number CN203038417U discloses a laser smoke alarm, including a housing, a circuit board, a translucent cover, an end cap, a laser diode, a phototransistor, a nut, and a wire outlet hole. The end cap is fixed to the housing, the circuit board is fixed to the mounting post of the housing via a nut, the laser diode and the phototransistor respectively enter the left and right holes of the end cap from the circuit board, the translucent cover is fixed between the end cap and the housing, and the wiring extends from the central hole of the housing.

[0004] The above scheme uses laser diodes as light sources, which have the advantages of strong luminescence, high energy, good monochromaticity, good directionality, high sensitivity, and long service life. It can realize ultra-early alarm of fire. At the same time, the protection area of this laser smoke alarm is greatly increased compared with traditional photoelectric smoke detectors. However, it is very troublesome to install the alarm. When the installation range of laser alarms is large and the number is large, it is more troublesome to use traditional screws to install them, which wastes time and reduces installation efficiency. Utility Model Content

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a laser alarm that is easy to install, comprising: a shell, two horizontal bars fixedly connected to the top of the outer surface of the shell, one of the horizontal bars fixedly connected to the top of the outer surface of a fixed plate, the other horizontal bar fixedly connected to the top of the outer surface of the connecting plate, the outer surface of the connecting plate fixedly connected to two limiting telescopic rods, and one end of the two limiting telescopic rods fixedly connected to a movable plate.

[0006] The technical effect of adopting the above-mentioned further scheme is: the long strip moves toward the fixed plate under the limitation of the spring, and at this time the long strip drives the movable plate to move toward the fixed plate. At this time, the movable plate and the fixed plate can clamp the entire device to the area where the alarm is used. Under the limiting action of the spring, the card rod is stuck in the inside of the card hole to limit and fix the long strip. The installation is simple, and you only need to pull the pull rod.

[0007] As a preferred embodiment, the top of the outer surface of the connecting plate is fixedly connected to U-shaped block 1, the top of the outer surface of the U-shaped block 1 is fixedly connected to U-shaped block 2, a pull rod is movably embedded in the inner wall of the U-shaped block 2, the bottom end of the pull rod is fixedly connected to a round block, the top of the outer surface of the round block is fixedly connected to a spring, and the bottom of the outer surface of the round block away from the spring is fixedly connected to a clamping rod.

[0008] The technical effect of adopting the above further solution is: when the shell is picked up for installation, the pull rod is pulled to drive the round block and the clamping rod to move from the inside of the clamping hole, and after the movement, the clamping rod is disengaged from the inside of the clamping hole.

[0009] As a preferred embodiment, the outer surface of the movable plate is fixedly connected to a long strip, a plurality of card holes are opened on the top of the outer surface of the long strip, the card rod is movably embedded in one of the card holes, and the outer surface of the outer shell is fixedly connected to two L plates.

[0010] The technical effect of adopting the above further solution is: it is used to limit the position of the movable plate after it is clamped and fixed.

[0011] As a preferred embodiment, threaded rods are movably embedded in the interior of the two L-plates, and the bottom of the outer surface of the shell is connected to two baffles by a hinge. The outer surfaces of the two baffles are provided with circular holes, and the two threaded rods are movably embedded in the interior of the two circular holes.

[0012] The technical effect of adopting the above further solution is: after picking up the alarm body, it is stuck inside the shell, and then the baffle is rotated horizontally in a semicircle around the outer surface of the shell as the center. The baffle is located on the surface of the alarm body to limit it.

[0013] As a preferred embodiment, the interior of the shell is detachably connected to the alarm body, and the two blocking bars are both located at the bottom of the outer surface of the alarm body.

[0014] The technical effect of adopting the above further scheme is: the threaded rod rotates inside the L-plate, and after rotation, the threaded rod is embedded in the inside of the circular hole, the baffle is fixed, and the alarm body is installed inside the shell. At this time, the alarm body is easy to disassemble and install inside the shell.

[0015] Compared with the prior art, the advantages and positive effects of the present invention are:

[0016] 1. When the utility model is in use, the outer shell is picked up for installation, and the pull rod is pulled to drive the round block and the clamping rod to move from the inside of the clamping hole. After the movement, the clamping rod is disengaged from the inside of the clamping hole, and the long strip moves toward the fixed plate under the limit of the spring. At this time, the long strip drives the movable plate to move toward the fixed plate. At this time, the movable plate and the fixed plate can clamp the entire device to the area where the alarm is used. Under the limiting action of the spring, the clamping rod is clamped in the inside of the clamping hole to limit and fix the long strip. The installation is simple, and only needs to pull the pull rod.

[0017] 2. When using the utility model, the alarm body is picked up and stuck into the inside of the shell, and then the baffle is rotated in a horizontal semicircle around the outer surface of the shell as the center. The baffle is located on the surface of the alarm body to limit it, and then the threaded rod is rotated inside the L-plate. After rotation, the threaded rod is embedded in the inside of the circular hole, the baffle is fixed, and the alarm body is installed inside the shell. At this time, the alarm body is easy to disassemble and install inside the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model provides a three-dimensional structural diagram of a laser alarm that is easy to install;

[0019] Figure 2 The utility model provides a schematic diagram of a top view of a laser alarm that is easy to install;

[0020] Figure 3 The utility model provides a side view structural diagram of a laser alarm that is easy to install;

[0021] Figure 4 The present invention provides a schematic diagram of the enlarged structure of point A of a laser alarm that is easy to install.

[0022] Legend: 101, outer shell; 102, horizontal bar; 103, fixed plate; 104, connecting plate; 105, telescopic limit rod; 106, movable plate; 107, long strip; 108, clamping hole; 109, U-shaped block 1; 110, U-shaped block 2; 111, pull rod; 112, spring; 113, round block; 114, clamping rod; 115, L-plate; 116, threaded rod; 117, stop bar; 118, round hole; 119, alarm body. DETAILED DESCRIPTION

[0023] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] See also Figures 1 to 4 The utility model provides a laser alarm that is easy to install, comprising: a shell 101, two horizontal bars 102 are fixedly connected to the top of the outer surface of the shell 101, the outer surface top of one horizontal bar 102 is fixedly connected to a fixing plate 103, and the outer surface top of the other horizontal bar 102 is fixedly connected to a connecting plate 104, and the outer surface of the connecting plate 104 is fixedly connected to two limiting telescopic rods 105, one end of the two limiting telescopic rods 105 is fixedly connected to a movable plate 106, and the long strip 107 moves in the limiting direction of the card hole 108. At this time, the long strip 107 drives the movable plate 106 to move toward the fixed plate 103. At this time, the movable plate 106 and the fixed plate 103 can clamp the entire device into the area where the alarm is used. Under the limiting action of the spring 112, the card rod 114 is stuck in the inside of the card hole 108 to limit and fix the long strip 107. The installation is simple, and only needs to pull the pull rod 111.

[0026] like Figures 1 to 4 As shown, the top of the outer surface of the connecting plate 104 is fixedly connected with a U-shaped block 109, the top of the outer surface of the U-shaped block 109 is fixedly connected with a U-shaped block 2 110, and the inner wall of the U-shaped block 2 110 is movably embedded with a pull rod 111, the bottom end of the pull rod 111 is fixedly connected with a round block 113, the top of the outer surface of the round block 113 is fixedly connected with a spring 112, and the bottom of the outer surface of the round block 113 away from the spring 112 is fixedly connected with a clamping rod 114. When the outer shell 101 is picked up for installation, the pull rod 111 is pulled to drive the round block 113 and the clamping rod 114 to move from the inside of the clamping hole 108. After the movement, the clamping rod 114 is disengaged from the inside of the clamping hole 108.

[0027] like Figures 1 to 4 As shown, the outer surface of the movable plate 106 is fixedly connected to a long strip 107, and a plurality of clamping holes 108 are opened on the top of the outer surface of the long strip 107. The clamping rod 114 is movably embedded in the inside of one of the clamping holes 108. The outer surface of the shell 101 is fixedly connected to two L-plates 115, which are used to limit the movable plate 106 after clamping and fixing.

[0028] like Figures 1 to 4As shown, the interior of the two L-plates 115 are movably embedded with threaded rods 116, and the bottom of the outer surface of the shell 101 is connected to two baffles 117 by a hinge. The outer surfaces of the two baffles 117 are provided with circular holes 118, and the two threaded rods 116 are movably embedded in the inside of the two circular holes 118. After the alarm body 119 is picked up, it is stuck into the interior of the shell 101, and then the baffle 117 is rotated horizontally in a semicircle around the outer surface of the shell 101 as the center of the circle. The baffle 117 is located on the surface of the alarm body 119 to limit it.

[0029] like Figures 1 to 4 As shown, the interior of the shell 101 is detachably connected to the alarm body 119, and the two baffles 117 are located at the bottom of the outer surface of the alarm body 119. The rotating threaded rod 116 rotates inside the L-plate 115. After rotation, the threaded rod 116 is embedded in the inside of the circular hole 118, the baffle 117 is fixed, and the alarm body 119 is installed inside the shell 101. At this time, the alarm body 119 is easy to disassemble and install inside the shell 101.

[0030] Working principle: When in use, pick up the alarm body 119 and clip it into the inside of the shell 101, then rotate the baffle 117 in a horizontal semicircular shape around the outer surface of the shell 101 as the center. The baffle 117 is located on the surface of the alarm body 119 to limit it, and then rotate the threaded rod 116 inside the L plate 115. After rotation, the threaded rod 116 is embedded in the inside of the circular hole 118, the baffle 117 is fixed, and the alarm body 119 is installed inside the shell 101. At this time, the alarm body 119 is easy to disassemble and install inside the shell 101. Pick up the shell 101 During the later installation, pull the pull rod 111 to drive the round block 113 and the clamping rod 114 to move from the inside of the clamping hole 108. After the movement, the clamping rod 114 disengages from the inside of the clamping hole 108, and the long strip 107 moves in the limit direction of the clamping hole 108. At this time, the long strip 107 drives the movable plate 106 to move toward the direction of the fixed plate 103. At this time, the movable plate 106 and the fixed plate 103 can clamp the entire device to the area where the alarm is used. Under the limiting action of the spring 112, the clamping rod 114 is stuck in the inside of the clamping hole 108 to limit and fix the long strip 107. The installation is simple, and you only need to pull the pull rod 111.

[0031] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A laser alarm that is easy to install, comprising: The shell (101) is characterized in that two horizontal bars (102) are fixedly connected to the top of the outer surface of the shell (101), wherein the top of the outer surface of one of the horizontal bars (102) is fixedly connected to a fixed plate (103), and the top of the outer surface of the other horizontal bar (102) is fixedly connected to a connecting plate (104), and the outer surface of the connecting plate (104) is fixedly connected to two limiting telescopic rods (105), and one end of the two limiting telescopic rods (105) is fixedly connected to a movable plate (106).

2. The easy-to-install laser alarm according to claim 1, characterized in that: The top of the outer surface of the connecting plate (104) is fixedly connected to a U-shaped block 1 (109), the top of the outer surface of the U-shaped block 1 (109) is fixedly connected to a U-shaped block 2 (110), and a pull rod (111) is movably embedded in the inner wall of the U-shaped block 2 (110).

3. The easy-to-install laser alarm according to claim 2, characterized in that: The bottom end of the pull rod (111) is fixedly connected to a round block (113), the top of the outer surface of the round block (113) is fixedly connected to a spring (112), and the bottom of the outer surface of the round block (113) away from the spring (112) is fixedly connected to a clamping rod (114).

4. The easy-to-install laser alarm according to claim 3, characterized in that: A long strip (107) is fixedly connected to the outer surface of the movable plate (106), and a plurality of clamping holes (108) are provided on the top of the outer surface of the long strip (107).

5. The laser alarm device that is easy to install according to claim 4, characterized in that: The clamping rod (114) is movably embedded in one of the clamping holes (108), and two L-plates (115) are fixedly connected to the outer surface of the housing (101).

6. The easy-to-install laser alarm according to claim 5, characterized in that: A threaded rod (116) is movably embedded in the interior of the two L-plates (115), and the bottom of the outer surface of the housing (101) is connected to two blocking bars (117) via a hinge.

7. The easy-to-install laser alarm according to claim 6, characterized in that: The outer surfaces of the two blocking bars (117) are both provided with circular holes (118), and the two threaded rods (116) are both movably embedded in the inside of the two circular holes (118).

8. The easy-to-install laser alarm according to claim 7, characterized in that: The interior of the housing (101) is detachably connected to an alarm body (119), and the two blocking bars (117) are both located at the bottom of the outer surface of the alarm body (119).

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