A portable municipal pipeline call alarm

Abstract

The present invention discloses a portable municipal pipeline call alarm, comprising an installation box and a switch button, the inner cavity wall of the installation box is fixedly connected with a battery box, the inner cavity of the battery box is provided with a storage battery, an alarm light is installed on the upper end face of the installation box, the storage battery is electrically connected to the alarm light, the inner cavity wall of the installation box is rotatably connected with a rotating shaft, the inner cavity wall of the installation box is symmetrically fixedly connected with a metal plate, the left end of the rotating shaft is fixedly connected with a rocker, and the lower end face of the installation box is provided with a tightening clamping mechanism. The present invention relates to the technical field of alarms. The portable municipal pipeline call alarm solves the problem that the battery inside the existing municipal pipeline alarm will be exhausted after long-term use, so that the alarm light cannot continuously send out effective alarms, and it is inconvenient for the staff to carry and use the alarm according to actual needs when repairing the pipeline, which reduces the flexibility of the actual use of the alarm.

Description

Technical Field

[0001] The invention relates to the technical field of alarms, in particular to a portable municipal pipeline call alarm. Background Art

[0002] Municipal underground pipelines are pipelines laid underground for transporting liquids, gases or loose solids. When municipal pipelines are damaged, workers need to go underground to repair them. Generally, maintenance workers need to be equipped with alarms to avoid situations where rescue workers cannot find them in the event of an underground landslide.

[0003] Existing municipal pipeline alarms generally use batteries to store electricity for the alarms. Since the battery power cannot be seen and there is no rescue for a long time underground, the battery in the alarm will be exhausted, and the alarm light will not be able to continue to send out effective alarms, which greatly reduces the probability of the staff being rescued. In addition, it is inconvenient for the staff to carry and use the alarm according to actual needs when repairing the pipeline, which is easy to affect the staff's operation and maintenance, reducing the flexibility of the actual use of the alarm. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a portable municipal pipeline call alarm, which solves the problem that the internal battery of the existing municipal pipeline alarm will run out of power after long-term use, thereby making it impossible for the alarm light to continue to emit an effective alarm, and it is inconvenient for staff to carry and use the alarm according to actual needs when repairing the pipeline, thereby reducing the flexibility of the actual use of the alarm.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a portable municipal pipeline call alarm, comprising an installation box and a switch button, the inner cavity wall of the installation box is fixedly connected to a battery box, the inner cavity of the battery box is provided with a storage battery, an alarm light is installed on the upper end surface of the installation box, the storage battery is electrically connected to the alarm light, the inner cavity wall of the installation box is rotatably connected to a rotating shaft, the outer wall of the rotating shaft is symmetrically fixedly connected to a cam, the upper cavity wall of the installation box is provided with an extrusion lighting mechanism, the right side wall of the installation box is fixedly connected to the installation box, and the inner cavity wall of the installation box A support shaft is rotatably connected through it, and a cloth belt is wrapped around the outer wall of the support shaft. A slide plate is symmetrically slidably connected to the inner wall of the installation box through a slide groove and a slider. The side walls of the two slide plates that are away from each other are fixedly connected to the inner wall of the installation box through a third spring. The side walls of the two slide plates that are away from each other are symmetrically fixedly connected with impact metal balls. The inner wall of the installation box is symmetrically fixedly connected with a metal plate. The left end of the rotating shaft is fixedly connected with a rocker. The lower end surface of the installation box is provided with a tightening clamping mechanism, and the upper end surface of the installation box is respectively provided with an outlet and a wiring port for speaker playback.

[0008] Preferably, the extrusion lighting mechanism includes a U-shaped plate, a cylinder, a limit spring, piezoelectric ceramics and four-corner convex discs. The upper cavity wall of the installation box is fixedly connected with the U-shaped plate, and the upper end surface of the U-shaped plate is slidably connected with a cylinder, and the outer wall of the cylinder is fitted with a limit spring.

[0009] Preferably, one end of the limit spring is fixedly connected to the upper end surface of the U-shaped plate, and the other end of the limit spring is fixedly connected to the upper end surface of the cylinder. The upper cavity wall of the installation box is installed with piezoelectric ceramics, and the piezoelectric ceramics are electrically connected to the alarm light. The outer wall of the rotating shaft is fixedly connected with four corner bosses.

[0010] Preferably, the tightening and clamping mechanism includes a ratchet, a sliding rod, a pawl, a first spring, a gear, a limit groove, a movable plate, an inclined groove, a sliding column, a first spring, a support plate, a second spring, an arc pad and a rack, the outer wall of the support shaft is fixedly connected with a ratchet, the upper end surface of the installation box is slidably connected with a sliding rod, the outer wall of the support shaft is sleeved with a first spring, one end of the first spring is fixedly connected to the support shaft, and the other end of the first spring is fixedly connected to the bottom of the cavity of the installation box.

[0011] Preferably, one end of the cloth belt away from the supporting shaft is fixedly connected to the outer wall of the installation box, the lower end surface of the sliding rod is rotatably connected to a pawl, the outer wall of the sliding rod is sleeved with a first spring, one end of the first spring is fixedly connected to the upper cavity wall of the installation box, and the other end of the first spring is fixedly connected to the upper end surface of the pawl.

[0012] Preferably, the support shaft passes through one end of the lower part of the installation box and is fixedly connected to a gear, the lower end surface of the installation box is symmetrically slidably connected to a sliding column through a limiting groove, the sliding column and the lower end surface of the installation box are slidably connected to a movable plate, the lower end surface of the movable plate is symmetrically penetrated with an inclined groove, and the sliding column and the inclined groove are slidably connected.

[0013] Preferably, the lower end surface of the sliding column is fixedly connected to a support plate, the inner side wall of the support plate is fixedly connected to an arc pad via a second spring, the right side wall of the movable plate is fixedly connected to a rack, and the rack is meshed with a gear.

[0014] Beneficial Effects

[0015] The present invention provides a portable municipal pipeline call alarm. It has the following beneficial effects:

[0016] 1. The portable municipal pipeline call alarm, through the cooperation of the rotating shaft, cam, slide plate, third spring, impact metal ball, metal plate, second spring, rocker and switch button, first, when an emergency needs to call for alarm and rescue, you can press the switch button to start the alarm light flashing and make a sound. When rescue is not available for a long time and the battery is out of power, you can hold the rocker to rotate the rotating shaft, which will drive the two cams to rotate at the same time and squeeze the slide plate with its outer wall away from each other to compress the third spring, and also drive the impact metal ball on the outer wall of the slide plate to hit the metal plate and make a sound. When the cam rotates and no longer squeezes the slide plate, at this time The third spring reset can make the slide plate always fit against the outer wall of the cam, and can make the metal ball hit the metal plate intermittently and make a sound when the cam rotates repeatedly, which is convenient for rescue personnel to search. When the rotating shaft rotates, it will also drive the second clockwork spring to contract. After rotating it a few times, you can loosen the rocker. At this time, the second clockwork spring reset will drive the rotating shaft to reverse a few times, which can effectively save the user's physical strength and avoid sore hands caused by long-term shaking. It can also make a sound when the battery in the alarm is out of power, which increases the probability of the user being found. In addition, its structure is coherent and can automatically sound an alarm with simple operation.

[0017] 2. The portable municipal pipeline call alarm, through the cooperation of squeezing the lighting mechanism, U-shaped plate, cylinder, limit spring, piezoelectric ceramics and four-corner convex discs, when the shaft rotates, the four-corner convex discs on its outer wall will also rotate and repeatedly squeeze the cylinder. When the cylinder is squeezed, it will slide upward and squeeze the piezoelectric ceramics will also compress the position spring. When the piezoelectric ceramics are squeezed, the material can be used under the action of mechanical stress to cause the relative displacement of the internal positive and negative charge centers and polarization, resulting in the appearance of bound charges of opposite signs on the surfaces of both ends of the material, namely the piezoelectric effect, so that the alarm light is energized, and the alarm light can be repeatedly lit under the repeated squeezing of the four-corner convex discs, which not only makes it convenient for the staff to observe the trapped environment, but also helps to emit flashing lights to remind rescuers, effectively increasing the probability of trapped staff being found, reducing the situation where the staff cannot be found, and improving the alarm effect of the entire alarm when there is no power.

[0018] 3. The portable municipal pipeline call alarm, through the cooperation of tightening the clamping mechanism, the ratchet, the sliding rod, the pawl, the first spring and the first spring, can also be used to hold the sliding rod and press downward to disengage the pawl from the ratchet when in use, thereby compressing the first spring on the outer wall of the sliding rod. At this time, the cloth belt can be pulled to extend and drive the support shaft to rotate, thereby contracting the first spring, and then it can be put on one's waist or arm, and then the sliding rod can be loosened. At this time, the first spring is reset and drives the pawl to re-engage with the ratchet, and the first spring is also reset to drive the support shaft to reverse and tighten the cloth belt. When the support shaft reverses, the ratchet rotates and then drives the pawl to rotate repeatedly so that it is always engaged with the outer wall of the ratchet, so that the user cannot pull the cloth belt again to extend it, and the cloth belt can fit the waist or arm better, so that the entire alarm can be temporarily fixed on the arm or waist, which also saves the trouble of manual holding and improves the convenience of use.

[0019] 4. The portable municipal pipeline call alarm can be installed at the street lamp of the underground municipal pipeline by tightening the clamping mechanism, gears, limit grooves, movable plate, inclined grooves, sliding columns, first springs, support plates, second springs, arc pads and racks. When the pipeline is inconvenient to carry and affects operation during maintenance, the alarm can be installed at the street lamp of the underground municipal pipeline. It only needs to press the slide bar again to pull the cloth belt to extend. At this time, the support shaft rotates and the gear at the bottom thereof rotates to engage the rack, thereby driving the movable plate to slide backward. Due to the inclined groove, the two slide columns are squeezed away from each other along the limit grooves, thereby allowing the two arc pads to move away from each other. At this time, the installation box is placed horizontally so that the two arc pads are inserted into the outer wall of the lamp post. Then the slide bar and the cloth belt are loosened. At this time, the first spring is reset and the support shaft and the gear are reversed, thereby engaging the rack and the movable plate to slide and reset, so that the arc pads can be close to each other again and then clamped on the outer wall of the lamp post. The operation is simple and the alarm can be quickly installed on the street lamp, which can reduce the labor of the staff, facilitate the user to repair the pipeline, and improve the flexibility of the entire alarm. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 It is a schematic diagram of a partial cutaway structure of the installation box of the present invention;

[0022] Figure 3 It is a schematic diagram of the installation structure of the second spring and the rotating shaft of the present invention;

[0023] Figure 4 This is a schematic diagram of the overall installation structure of the present invention from a rear view;

[0024] Figure 5 It is a schematic diagram of a partial cutaway structure of the installation box of the present invention;

[0025] Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure of the middle A area;

[0026] Figure 7 This is a schematic diagram of the gear and rack installation structure of the present invention;

[0027] Figure 8 This is a schematic diagram of the installation structure of the sliding column and the limiting groove of the present invention;

[0028] Fig. 9 It is a schematic diagram of the installation structure of the rotating shaft and the four-corner flanges of the present invention.

[0029] In the figure: 1. installation box; 2. battery box; 3. warning light; 4. rotating shaft; 5. cam; 6. extrusion lighting mechanism; 61. U-shaped plate; 62. cylinder; 63. limit spring; 64. piezoelectric ceramic; 65. four-corner convex plate; 7. installation box; 8. tightening clamping mechanism; 81. ratchet; 82. slide bar; 83. pawl; 84. first spring; 85. gear; 86. limit groove; 87. moving plate; 88. inclined groove; 89. slide column; 810. first spring; 811. support plate; 812. second spring; 813. arc pad; 814. rack; 9. slide plate; 10. third spring; 11. striking metal ball; 12. metal plate; 13. second spring; 14. cloth belt; 15. support shaft; 16. rocker; 17. switch button. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] The present invention provides a technical solution:

[0032] Embodiment 1

[0033] See also Figure 1 - Figure 4 , including an installation box 1 and a switch button 17, the inner cavity wall of the installation box 1 is fixedly connected with a battery box 2, the inner cavity of the battery box 2 is provided with a battery, an alarm light 3 is installed on the upper end surface of the installation box 1, the battery and the alarm light 3 are electrically connected, the inner cavity wall of the installation box 1 is rotatably connected with a rotating shaft 4, the outer wall of the rotating shaft 4 is symmetrically fixedly connected with a cam 5, the upper cavity wall of the installation box 1 is provided with an extrusion lighting mechanism 6, the right side wall of the installation box 1 is fixedly connected with an installation box 7, the inner cavity wall of the installation box 7 is penetrated and rotatably connected with a support shaft 15, and the outer wall of the support shaft 15 is wrapped with Cloth tape 14, the inner wall of the installation box 1 is symmetrically slidably connected with a slide plate 9 through a slide groove and a slider, the side walls of the two slide plates 9 that are away from each other are fixedly connected to the inner wall of the installation box 1 through a third spring 10, the side walls of the two slide plates 9 that are away from each other are symmetrically fixedly connected with impact metal balls 11, the inner wall of the installation box 1 is symmetrically fixedly connected with a metal plate 12, the left end of the rotating shaft 4 is fixedly connected with a rocker 16, the lower end surface of the installation box 1 is provided with a tightening clamping mechanism 8, and the upper end surface of the installation box 1 is respectively provided with an outlet and a wiring port for speaker playback.

[0034] Through the cooperation of the rotating shaft 4, cam 5, slide plate 9, third spring 10, impact metal ball 11, metal plate 12, second spring 13, rocker 16 and switch button 17, first, when an emergency situation requires calling for alarm and rescue, the switch button 17 can be pressed to turn on the alarm light 3 to flash and make a sound. When the battery is out of power and no rescue is available for a long time, the rocker 16 can be held to rotate the rotating shaft 4, which will drive the two cams 5 to rotate at the same time and squeeze the slide plates 9 whose outer walls are in contact with each other away from each other, compressing the third spring 10 to contract, and also driving the impact metal ball 11 on the outer wall of the slide plate 9 to hit the metal plate 12 to make a sound. When the cam 5 rotates and no longer squeezes the slide plate 9, the third spring 10 can be pressed to contract. The reset of the three springs 10 can make the slide plate 9 always fit against the outer wall of the cam 5, and can make the metal ball 11 hit the metal plate 12 intermittently to make a sound when the cam 5 rotates repeatedly, which is convenient for rescue personnel to search, and when the rotating shaft 4 rotates, it will also drive the second clockwork spring 13 to contract. After holding and rotating it for a few circles, you can loosen the rocker 16. At this time, the reset of the second clockwork spring 13 will drive the rotating shaft 4 to reverse for a few circles, which can effectively save the user's physical strength and avoid the situation where the hands are sore due to long-term shaking. It can also make a sound when the battery in the alarm is out of power, which increases the probability of the user being found, and its structure is coherent and can automatically issue an audible alarm with simple operation.

[0035] Embodiment 2

[0036] See also Figure 1 and Fig. 9 The extrusion lighting mechanism 6 includes a U-shaped plate 61, a cylinder 62, a limit spring 63, a piezoelectric ceramic 64 and four corner convex discs 65. The upper cavity wall of the installation box 1 is fixedly connected with the U-shaped plate 61, and the upper end surface of the U-shaped plate 61 is slidably connected with the cylinder 62. The outer wall of the cylinder 62 is fitted with a limit spring 63. One end of the limit spring 63 is fixedly connected to the upper end surface of the U-shaped plate 61, and the other end of the limit spring 63 is fixedly connected to the upper end surface of the cylinder 62. The upper cavity wall of the installation box 1 is installed with a piezoelectric ceramic 64, and the piezoelectric ceramic 64 is electrically connected to the alarm light 3. The outer wall of the rotating shaft 4 is fixedly connected with four corner convex discs 65.

[0037] By squeezing the lighting mechanism 6, the U-shaped plate 61, the cylinder 62, the limit spring 63, the piezoelectric ceramic 64 and the four-corner convex disc 65, when the rotating shaft 4 rotates, the four-corner convex disc 65 on its outer wall will also rotate and repeatedly squeeze the cylinder 62. When the cylinder 62 is squeezed, it will slide upward. The squeezing of the piezoelectric ceramic 64 will also compress the limit spring 63. When the piezoelectric ceramic 64 is squeezed, its material can be used under the action of mechanical stress to cause the relative displacement of the internal positive and negative charge centers and polarization, resulting in the appearance of bound charges with opposite signs on the surfaces of both ends of the material, namely the piezoelectric effect, so that the alarm light 3 is energized, and the alarm light 3 can be repeatedly lit under the repeated squeezing of the four-corner convex disc 65, which is not only convenient for the staff to observe the trapped environment, but also conducive to emitting flashing lights to remind rescue personnel, effectively increasing the probability of trapped staff being found, reducing the situation where the staff cannot be found, and improving the alarm effect of the entire alarm when there is no power.

[0038] Embodiment 3

[0039] See also Figure 5 - Figure 7 The tightening clamping mechanism 8 includes a ratchet 81, a slide bar 82, a pawl 83, a first spring 84, a gear 85, a limit groove 86, a moving plate 87, an inclined groove 88, a slide column 89, a first spring 810, a support plate 811, a second spring 812, an arc pad 813 and a rack 814. The outer wall of the support shaft 15 is fixedly connected with the ratchet 81, the upper end surface of the installation box 7 is slidably connected with the slide bar 82, and the outer wall of the support shaft 15 is sleeved with a first spring 810. One end of the first clockwork spring 810 is fixedly connected to the support shaft 15, the other end of the first clockwork spring 810 is fixedly connected to the bottom of the cavity of the installation box 7, the end of the cloth belt 14 away from the support shaft 15 is fixedly connected to the outer wall of the installation box 1, the lower end surface of the slide rod 82 is rotatably connected with a pawl 83, the outer wall of the slide rod 82 is sleeved with a first spring 84, one end of the first spring 84 is fixedly connected to the upper cavity wall of the installation box 7, and the other end of the first spring 84 is fixedly connected to the upper end surface of the pawl 83.

[0040] By tightening the clamping mechanism 8, the ratchet 81, the slide bar 82, the pawl 83, the first spring 810 and the first spring 84, when in use, the slide bar 82 can be held and pressed downward to disengage the pawl 83 from the ratchet 81, thereby compressing the first spring 84 on the outer wall of the slide bar 82. At this time, the cloth belt 14 can be pulled to extend and drive the support shaft 15 to rotate, thereby contracting the first spring 810, and then it can be put on your waist or arm, and then the slide bar 82 can be loosened. At this time, the first spring 84 is reset to drive The pawl 83 is re-engaged with the ratchet 81, and the first spring 810 is also reset to drive the support shaft 15 to reverse and tighten the cloth belt 14. When the support shaft 15 reverses, the ratchet 81 rotates and then drives the pawl 83 to rotate repeatedly so that it is always engaged with the outer wall of the ratchet 81, so that the user cannot pull the cloth belt 14 again to extend it, and the cloth belt 14 can better fit the waist or arm, so that the entire alarm can be temporarily fixed on the arm or waist, which also saves the trouble of manual holding and improves the convenience of use.

[0041] Embodiment 4

[0042] See also Figure 1 and Figure 8 The support shaft 15 passes through one end of the lower part of the installation box 7 and is fixedly connected to a gear 85. The lower end surface of the installation box 1 is symmetrically slidably connected to a sliding column 89 through a limiting groove 86. The sliding column 89 and the lower end surface of the installation box 1 are slidably connected to a moving plate 87. The lower end surface of the moving plate 87 is symmetrically penetrated with an inclined groove 88. The sliding column 89 and the inclined groove 88 are slidably connected. The lower end surfaces of the sliding columns 89 are fixedly connected to a support plate 811. The inner side wall of the support plate 811 is fixedly connected to an arc pad 813 through a second spring 812. The right side wall of the moving plate 87 is fixedly connected to a rack 814, and the rack 814 is meshed with the gear 85.

[0043] By tightening the clamping mechanism 8, gear 85, limiting groove 86, moving plate 87, inclined groove 88, slide column 89, first spring 810, support plate 811, second spring 812, arc pad 813 and rack 814, the alarm can be installed at the street lamp of the underground municipal pipeline when it is inconvenient to carry and affect the operation during pipeline maintenance. It is only necessary to press the slide bar 82 again to extend the cloth belt 14. At this time, the support shaft 15 rotates the gear 85 at the bottom to engage the rack 814, thereby driving the moving plate 87 to slide backward. Due to the inclined groove 88, the two slide columns 89 will be squeezed along the limiting groove 8 6 move away from each other, so that the two arc pads 813 move away from each other. At this time, the installation box 1 is placed horizontally to allow the two arc pads 813 to be inserted into the outer wall of the street lamp post. Then, the slide bar 82 and the cloth belt 14 are loosened. At this time, the first clockwork spring 810 is reset to allow the support shaft 15 and the gear 85 to reverse, so that the meshing rack 814 and the moving plate 87 slide and reset, and the arc pads 813 can be brought close to each other again and clamped on the outer wall of the street lamp post. The operation is simple and the alarm can be quickly installed on the street lamp, which can reduce the labor of the staff, facilitate the user to repair the pipeline, and improve the flexibility of the entire alarm.

[0044] Working principle: first, when an emergency situation requires calling for alarm and rescue, you can press the switch button 17 to turn on the alarm light 3 to flash and make a sound. When rescue is not available for a long time and the battery is out of power, you can hold the rocker 16 to rotate the shaft 4, which will drive the two cams 5 to rotate at the same time, thereby squeezing the slide plates 9 that are in contact with their outer walls away from each other, compressing the third spring 10 to shrink, and also drive the impact metal ball 11 on the outer wall of the slide plate 9 to hit the metal plate 12 to make a sound. When the cam 5 rotates and no longer squeezes the slide plate 9, the third spring 10 is reset at this time, so that the slide plate 9 is always in contact with the outer wall of the cam 5, and the impact metal ball 11 can hit the metal plate 12 intermittently under the repeated rotation of the cam 5, which is convenient for rescue personnel to search, and when the shaft 4 rotates, it will also drive the second clockwork spring 13 to shrink. After holding and rotating for a few turns, you can loosen the rocker 16. At this time, the reset of the second clockwork spring 13 will drive the shaft 4 to reverse for a few turns, which can effectively save the user's physical strength and avoid long-term shaking and causing When the hands are sore, or when the battery in the alarm is out of power, it can also make a sound, increasing the probability of the user being found. Moreover, its structure is coherent and it can automatically make a sound alarm with simple operation. When the rotating shaft 4 rotates, the four-corner convex disks 65 on its outer wall will also rotate and repeatedly squeeze the cylinder 62. When the cylinder 62 is squeezed, it will slide upward and squeeze the piezoelectric ceramic 64, which will also compress the limit spring 63. When the piezoelectric ceramic 64 is squeezed, its material can be used under the action of mechanical stress to cause the relative displacement of the internal positive and negative charge centers and polarization, resulting in the appearance of bound charges of opposite signs on the surfaces of both ends of the material, namely the piezoelectric effect, thereby energizing the alarm light 3, and the alarm light 3 can be repeatedly lit under the repeated squeezing of the four-corner convex disks 65, which is not only convenient for the staff to observe the trapped environment, but also conducive to emitting flashing lights to remind rescue personnel, effectively increasing the probability of the trapped staff being found, reducing the situation where the staff cannot be found, and improving the alarm effect of the entire alarm when it is out of power.

[0045] When in use, the sliding rod 82 can also be held by hand to press downward to push the pawl 83 out of the engagement with the ratchet 81, thereby compressing the first spring 84 on the outer wall of the sliding rod 82. At this time, the cloth belt 14 can be pulled to extend and drive the support shaft 15 to rotate, thereby contracting the first spring 810, and then it is put on one's waist or arm, and then the sliding rod 82 is loosened. At this time, the first spring 84 is reset and drives the pawl 83 to mesh with the ratchet 81 again, and the first spring 810 is also reset, thereby driving the support shaft 15 to reverse and tighten the cloth belt 14. When the support shaft 15 reverses, the ratchet 81 rotates and then the pawl 83 rotates repeatedly, so that it is always engaged with the outer wall of the ratchet 81, so that the user cannot pull the cloth belt 14 again to extend it, which can make the cloth belt 14 fit the waist or arm better, so that the entire alarm can be temporarily fixed on the arm or waist, and it also saves the trouble of manual holding, improves the convenience of use, and can also be used when the pipeline is inconvenient to carry. During operation, the alarm is installed at the street lamp of the underground municipal pipeline. It is only necessary to press the slide bar 82 again to extend the cloth belt 14. At this time, the support shaft 15 rotates the gear 85 at its bottom to engage the rack 814, thereby driving the movable plate 87 to slide backward. Due to the inclined groove 88, the two slide columns 89 will be squeezed away from each other along the limit groove 86, so that the two arc pads 813 are separated from each other. At this time, the installation box 1 is placed horizontally so that the two arc pads 813 are inserted into the outer wall of the street lamp column, and then the slide bar 82 and the cloth belt 14 are loosened. At this time, the first clockwork spring 810 is reset and the support shaft 15 and the gear 85 are reversed, thereby engaging the rack 814 and the movable plate 87 to slide and reset, so that the arc pads 813 can be close to each other again and clamped on the outer wall of the street lamp column. Its operation is simple and can quickly install the alarm on the street lamp, which can reduce the labor of the staff, facilitate users to repair the pipeline, and improve the flexibility of the entire alarm.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable municipal pipeline call alarm, comprising a mounting box (1) and a switch button (17), characterized in that: The inner cavity wall of the installation box (1) is fixedly connected to a battery box (2), the inner cavity of the battery box (2) is provided with a storage battery, an alarm light (3) is installed on the upper end surface of the installation box (1), the storage battery is electrically connected to the alarm light (3), the inner cavity wall of the installation box (1) is rotatably connected to a rotating shaft (4), the outer wall of the rotating shaft (4) is symmetrically fixedly connected to a cam (5), the upper cavity wall of the installation box (1) is provided with an extrusion lighting mechanism (6), the right side wall of the installation box (1) is fixedly connected to an installation box (7), the inner cavity wall of the installation box (7) is penetrated by a support shaft (15) rotatably connected, The outer wall of the support shaft (15) is wrapped with a cloth belt (14); the inner wall of the installation box (1) is symmetrically slidably connected to a slide plate (9) through a slide groove and a slider; the side walls of the two slide plates (9) that are away from each other are fixedly connected to the inner wall of the installation box (1) through a third spring (10); the side walls of the two slide plates (9) that are away from each other are symmetrically fixedly connected to impact metal balls (11); the inner wall of the installation box (1) is symmetrically fixedly connected to a metal plate (12); the left end of the rotating shaft (4) is fixedly connected to a rocker (16); and the lower end surface of the installation box (1) is provided with a tightening clamping mechanism (8).

2. A portable municipal pipeline call alarm according to claim 1, characterized in that: The extrusion lighting mechanism (6) comprises a U-shaped plate (61), a cylinder (62), a limit spring (63), a piezoelectric ceramic (64) and four-corner convex plates (65); the upper cavity wall of the installation box (1) is fixedly connected to the U-shaped plate (61); the upper end surface of the U-shaped plate (61) is penetrated by a cylinder (62) in sliding connection; the outer wall of the cylinder (62) is sleeved with the limit spring (63).

3. A portable municipal pipeline call alarm according to claim 2, characterized in that: One end of the limit spring (63) is fixedly connected to the upper end surface of the U-shaped plate (61), and the other end of the limit spring (63) is fixedly connected to the upper end surface of the cylinder (62). The upper cavity wall of the installation box (1) is installed with a piezoelectric ceramic (64), and the piezoelectric ceramic (64) is electrically connected to the alarm light (3). The outer wall of the rotating shaft (4) is fixedly connected with four corner convex plates (65).

4. A portable municipal pipeline call alarm according to claim 1, characterized in that: The tightening and clamping mechanism (8) comprises a ratchet (81), a slide bar (82), a pawl (83), a first spring (84), a gear (85), a limiting groove (86), a movable plate (87), an inclined groove (88), a slide column (89), a first spring (810), a support plate (811), a second spring (812), an arc pad (813) and a rack (814); the outer wall of the support shaft (15) is fixedly connected with the ratchet (81); the upper end surface of the installation box (7) is penetrated by the slide bar (82) and is slidably connected thereto; the outer wall of the support shaft (15) is sleeved with a first spring (810); one end of the first spring (810) is fixedly connected to the support shaft (15); and the other end of the first spring (810) is fixedly connected to the bottom of the cavity of the installation box (7).

5. A portable municipal pipeline call alarm according to claim 4, characterized in that: One end of the cloth belt (14) away from the support shaft (15) is fixedly connected to the outer wall of the installation box (1); the lower end surface of the slide rod (82) is rotatably connected to a pawl (83); the outer wall of the slide rod (82) is sleeved with a first spring (84); one end of the first spring (84) is fixedly connected to the upper cavity wall of the installation box (7); and the other end of the first spring (84) is fixedly connected to the upper end surface of the pawl (83).

6. A portable municipal pipeline call alarm according to claim 5, characterized in that: One end of the support shaft (15) passing through the lower part of the installation box (7) is fixedly connected to a gear (85); the lower end surface of the installation box (1) is symmetrically slidably connected to a slide column (89) through a limit groove (86); the lower end surface of the installation box (1) is slidably connected to a moving plate (87); the lower end surface of the moving plate (87) is symmetrically penetrated with an inclined groove (88); the slide column (89) is slidably connected to the inclined groove (88).

7. A portable municipal pipeline call alarm according to claim 6, characterized in that: The lower end surfaces of the slide columns (89) are fixedly connected to support plates (811), the inner side walls of the support plates (811) are fixedly connected to arc pads (813) via second springs (812), and the right side wall of the movable plate (87) is fixedly connected to a rack (814), which meshes with a gear (85).

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