Distance detection alarm device and fixed control method of distance detection alarm device

Abstract

The invention discloses a distance detection alarm device and a fixed control method of the distance detection alarm device. The distance detection alarm device comprises a detection alarm and a mounting shell, wherein the detection alarm is arranged in the mounting shell; a fixing assembly is arranged outside the mounting shell; the fixing assembly comprises a soft magnetic base, a constant magnetic strip, a gear, a rack and a handle. Wherein the constant magnetic strip is arranged in the center of the interior of the soft magnetic base, the gear is arranged in the center of the upper portion of the soft magnetic base, the side face of the soft magnetic base is connected with the side wall of the mounting shell, and non-magnetic strip plates are arranged on the front face and the rear face of the soft magnetic base respectively; the gear is connected with the constant magnetic strip, so that the gear drives the constant magnetic strip to rotate when rotating; the gear is connected with the rack, and the rack is connected with the side wall of the mounting shell. According to the invention, magnetism can be conveniently controlled, so that the detection alarm can be conveniently adsorbed and fixed with mechanical equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle body control, and in particular to a distance detection alarm device and a fixed control method of the distance detection alarm device. Background Art

[0002] During the operation of large machinery such as cranes, in order to ensure the controllability and safety of large operations, the crane boom needs to maintain a safe distance from live equipment to reduce the risk of accidental collision with equipment. However, since the linear speed of the distal end of the crane boom is much greater than the linear speed of the proximal end, the moving distance of the extreme end of the boom is difficult to control. Therefore, detection alarm devices are currently used as auxiliary tools for crane operations to ensure that the crane maintains a sufficient safety distance from live equipment.

[0003] However, the current detection alarm devices are basically fixed by conventional fixing methods (bolting / riveting). Obviously, this undoubtedly increases the difficulty of installing and disassembling the device on the crane and affects the convenience of operation.

[0004] Therefore, there is an urgent need for a distance detection alarm device to solve the problem of difficulty in installation and disassembly of the detection alarm device. Summary of the invention

[0005] The embodiment of the present invention provides a distance detection alarm device and a fixing control method of the distance detection alarm device, so as to solve the problem that the detection alarm device is difficult to install and disassemble.

[0006] In order to solve the above problem, an embodiment of the present invention provides a distance detection alarm device, comprising: a detection alarm and a mounting shell; wherein the detection alarm is arranged inside the mounting shell; A fixing component is arranged on the outside of the mounting shell; the fixing component includes: a soft magnetic base, a permanent magnetic strip, a gear and a rack; wherein the permanent magnetic strip is arranged at the center of the inside of the soft magnetic base, the gear is arranged at the center of the upper part of the soft magnetic base, the side of the soft magnetic base is connected to the side wall of the mounting shell, and the front and rear surfaces of the soft magnetic base are respectively provided with non-magnetic strip plates; the gear is connected to the permanent magnetic strip so that the gear drives the permanent magnetic strip to rotate when it rotates; the gear is connected to the rack, and the rack is connected to the side wall of the mounting shell.

[0007] As an improvement of the above solution, the fixing assembly further includes: a damper; wherein the soft magnetic base and the mounting shell are connected via the damper.

[0008] As an improvement to the above solution, the number of the fixing components provided is at least two.

[0009] As an improvement of the above-mentioned scheme, the fixing assembly also includes: a protective cover, a drainage groove, a guide groove, an electric push rod and a guide frame; wherein the protective cover is connected to the upper part of the mounting shell; the upper part of the mounting shell is an open structure, and the ground of the drainage groove is inclined so that water entering the open structure can be discharged through the drainage groove; the guide groove, the electric push rod and the guide frame are arranged at the rear part of the mounting shell; the telescopic rod of the electric push rod is connected to the guide frame so that the guide frame moves based on the control of the telescopic rod by the electric push rod.

[0010] As an improvement of the above solution, the protective cover comprises: a two-part cover, a spring and two guide shafts; Among them, each of the sub-covers is respectively provided with a guide shaft, and each of the sub-covers is connected through the spring; the guide frame is provided with double grooves, and the guide grooves are provided with two, each of the guide shafts is respectively arranged in the corresponding guide groove, and each of the guide shafts is respectively arranged in the groove corresponding to the guide frame, so that when the guide frame moves, it drives the guide shaft to move, so that the guide shaft can drive the sub-cover to open or close when it moves along the guide groove.

[0011] As an improvement of the above solution, it further includes: a cleaner; wherein the cleaner is arranged on one of the sub-covers, and the cleaner is used to clean the signal sending end of the detection alarm.

[0012] As an improvement of the above scheme, it also includes: a warning light and a sounder; wherein the warning light and the sounder are electrically connected to the detection alarm respectively; the warning light is arranged at the bottom of the mounting shell; the sounder is arranged at the bottom of the mounting shell.

[0013] As an improvement of the above solution, the fixing assembly further includes: a handle and an electric pull rod; Wherein, the handle is arranged on the first side of the fixing component, and the electric pull rod is arranged on the second side of the fixing component; the first side is the side not connected to the alarm detector, and the second side is the side connected to the alarm detector.

[0014] Correspondingly, an embodiment of the present invention further provides a fixed control method of a distance detection alarm device, which is applied to the distance detection alarm device of the present invention, and includes: Receiving a control instruction from a user; wherein the control instruction includes: a fixing instruction and a releasing instruction; identifying the control instruction; If it is a fixed instruction, a first pull rod motion parameter is generated based on the first relative position of the permanent magnetic strip and the soft magnetic base, and the telescopic rod of the electric pull rod is controlled based on the first pull rod motion parameter to push the fixed component outward, so that when the gear on the fixed component rotates along the rack, the relative position between the permanent magnetic strip connected to the gear and the soft magnetic base is changed, so that the fixed component generates a first magnetic field strength; wherein, when the permanent magnetic strip and the soft magnetic base are in the first relative position, the first magnetic field strength is generated; If it is a release instruction, a second pull rod motion parameter is generated based on the second relative position of the permanent magnetic strip and the soft magnetic base, and the telescopic rod of the electric pull rod is controlled based on the second pull rod motion parameter to pull the fixed component inward, so that the gear on the fixed component changes the relative position between the permanent magnetic strip connected to the gear and the soft magnetic base when rotating along the rack, so that the fixed component generates a second magnetic field strength; wherein, when the permanent magnetic strip and the soft magnetic base are in the second relative position, a second magnetic field strength is generated; the second magnetic field strength is much smaller than the first magnetic field strength.

[0015] As an improvement of the above scheme, it also includes: Determine the state of the electric pull rod and the force applied to the electric pull rod; If the state of the electric pull rod is a damaged state, the telescopic rod in the electric pull rod is controlled to be in a relaxed state, so that the user can move the fixed component based on the handle; If the force applied to the electric pull rod is a push inward along the handle or a pull outward along the handle, it is recognized that the current user is manually fixing the distance detection alarm device, and the telescopic rod in the electric pull rod is controlled to be in a relaxed state.

[0016] As can be seen from the above, the present invention has the following beneficial effects: The present invention provides a distance detection alarm device, comprising: a detection alarm and a mounting shell; wherein the detection alarm is arranged inside the mounting shell; a fixing component is arranged outside the mounting shell; the fixing component comprises: a soft magnetic base, a permanent magnetic strip, a gear, a rack and a handle; wherein the permanent magnetic strip is arranged at the center inside the soft magnetic base, the gear is arranged at the center of the upper part of the soft magnetic base, the side surface of the soft magnetic base is connected to the side wall of the mounting shell, and non-magnetic strip plates are arranged on the front and rear surfaces of the soft magnetic base respectively; the gear is connected to the permanent magnetic strip so that the gear drives the permanent magnetic strip to rotate when rotating; the gear is connected to the rack, and the rack is connected to the side wall of the mounting shell. The present invention arranges a soft magnetic base and a permanent magnetic strip in a fixed component on the mounting shell, so that the mounting shell can be magnetically adsorbed on the mechanical equipment. At the same time, the relative position between the soft magnetic base and the permanent magnetic strip can be changed by the gear and the rack to realize whether the soft magnetic base is attached to the magnet. The present invention can conveniently control the magnetism, so that the detection alarm can be conveniently adsorbed and fixed to the mechanical equipment, thereby solving the problem of difficulty in installing and disassembling the detection alarm device and improving the installation efficiency of the detection alarm device.

[0017] Furthermore, the present invention is provided with a protective cover that can be opened and closed freely, which is closed when not in use to protect the detection alarm, and opened when in use so that the detection alarm can better send and receive detection signals, that is, the present invention can be freely controlled according to the use needs, thereby improving the use effect of the present invention; Furthermore, the present invention is provided with a warning light and a sounder which can provide dual warnings visually and audibly, thereby improving the warning effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a distance detection alarm device provided by an embodiment of the present invention; Figure 2 It is a structural schematic diagram of a mounting shell, a detection alarm and a protective cover that are separately connected according to an embodiment of the present invention; Figure 3 It is a schematic diagram of the connection structure of the installation shell, the detection alarm and the protective cover provided by one embodiment of the present invention; Figure 4 It is a schematic diagram of the connection structure of the soft magnetic base, the gear and the rack provided by one embodiment of the present invention; Figure 5 It is a schematic diagram of the separation structure of the soft magnetic base and the permanent magnetic strip provided by one embodiment of the present invention; Figure 6 It is a schematic diagram of the connection structure of the sub-cover, the guide groove and the guide frame provided by one embodiment of the present invention; Figure 7is a schematic structural diagram of a state where a sub-cover is unfolded, provided by an embodiment of the present invention; Figure 8 It is a schematic diagram of the connection structure between the sub-cover and the cleaner provided by one embodiment of the present invention; Fig. 9 It is a structural schematic diagram of the positions of a warning light and a sounder provided by an embodiment of the present invention; Fig.10 It is a flow chart of a fixed control method of a detection alarm device provided in one embodiment of the present invention.

[0019] The marks in the accompanying drawings are: 1: mounting shell, 101: back shell, 102: front shell, 103: card plate, 2: detection alarm, 3: drainage trough, 4: protective cover, 401: sub-cover, 5: soft magnetic base, 6: constant magnetic strip, 7: gear, 8: rack, 9: handle, 10: damping, 11: guide groove, 12: guide shaft, 13: electric push rod, 14: guide frame, 15: spring, 16: cleaner, 17: warning light, 18: sounder. DETAILED DESCRIPTION

[0020] 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.

[0021] Embodiment 1 See also Figure 1 , Figure 1 FIG. 1 is a flow chart of a distance detection alarm device provided by an embodiment of the present invention. Figure 1 As shown, the details are as follows: a detection alarm and a mounting shell; wherein the detection alarm is arranged inside the mounting shell; A fixing component is arranged on the outside of the mounting shell; the fixing component includes: a soft magnetic base, a permanent magnetic strip, a gear and a rack; wherein the permanent magnetic strip is arranged at the center of the inside of the soft magnetic base, the gear is arranged at the center of the upper part of the soft magnetic base, the side of the soft magnetic base is connected to the side wall of the mounting shell, and the front and rear surfaces of the soft magnetic base are respectively provided with non-magnetic strip plates; the gear is connected to the permanent magnetic strip so that the gear drives the permanent magnetic strip to rotate when it rotates; the gear is connected to the rack, and the rack is connected to the side wall of the mounting shell.

[0022] In a specific embodiment, a detection alarm is used to detect the distance between itself and the surrounding environment. The detection alarm is connected to the control console of the crane by electrical signals to feed back the detection data to the control console of the crane in real time. Once the detected data exceeds the preset value, the operator will be alerted immediately, thereby assisting the operator in controlling the crane.

[0023] It can be understood that the detection alarm in this embodiment is used for distance detection.

[0024] As an improvement of the above solution, the fixing assembly further includes: a damper; wherein the soft magnetic base and the mounting shell are connected via the damper.

[0025] It should be noted that the damping 10 stabilizes the movement process of the soft magnetic base 5, so that the gear 7 can be rotated by the rack 8 at a uniform speed, driving the permanent magnetic strip 6 to rotate stably relative to the soft magnetic base 5, changing the magnetic field on the soft magnetic base 5, so that the back side of the soft magnetic base 5 has magnetism, and then the device can be adsorbed and fixed on the crane through the soft magnetic base 5. Conversely, when the device is removed from the crane, the two soft magnetic bases 5 can be moved in the opposite direction to demagnetize the soft magnetic base 5. Therefore, the device is fixed using a fixing component, which can achieve convenient disassembly and assembly.

[0026] It can be understood that when using the present device and controlling the two soft magnetic bases 5 to be magnetized, the distance between the two soft magnetic bases 5 will be increased, thereby increasing the span of the fixed point where the present device contacts the crane and improving the fixing stability of the present device. When the present device is not used and controlling the two soft magnetic bases 5 to be demagnetized, the distance between the two soft magnetic bases 5 will be reduced, which can reduce the space occupied by the present device and facilitate the transportation / storage of the present device.

[0027] As an improvement to the above solution, the number of the fixing components provided is at least two.

[0028] As an improvement of the above-mentioned scheme, the fixing assembly also includes: a protective cover, a drainage groove, a guide groove, an electric push rod and a guide frame; wherein the protective cover is connected to the upper part of the mounting shell; the upper part of the mounting shell is an open structure, and the ground of the drainage groove is inclined so that water entering the open structure can be discharged through the drainage groove; the guide groove, the electric push rod and the guide frame are arranged at the rear part of the mounting shell; the telescopic rod of the electric push rod is connected to the guide frame so that the guide frame moves based on the control of the telescopic rod by the electric push rod.

[0029] In a specific embodiment, a mounting shell is provided outside the detection alarm 2. The mounting shell 1 is composed of a back shell 101, a front shell 102 and a card plate 103. The back shell 101 and the front shell 102 form an enclosed space for protecting the detection alarm 2. The front shell 102 is detachably fixed on the back shell 101. The card plate 103 is fixed in the back shell 101 and the front shell 102. The card plate 103 is used to clamp the detection alarm 2 in the space of the mounting shell 1 so that the detection alarm 2 can be stably fixed. The upper part of the mounting shell 1 is open, and the signal sending end of the detection alarm 2 faces upward, so that it can send and receive detection signals from the opening of the mounting shell 1; A drainage groove 3 is provided on the upper part of the mounting shell 1. The height of the drainage groove 3 is flush with the detection alarm 2 in the mounting shell 1. The bottom surface of the drainage groove 3 is inclined so that water entering from the opening of the mounting shell 1 can be discharged, thereby reducing the impact on the detection alarm 2; a protective cover 4 is slidably installed on the mounting shell 1. The protective cover 4 can move to open and close the opening on the mounting shell 1. The protective cover 4 consists of two sub-covers 401, one on the left and one on the right. The two sub-covers 401 are slidably connected together by a guide rod; a fixing component is provided on the mounting shell 1. The fixing component is used to fix the device on the crane. There are two groups of fixing components, which are respectively arranged on the left and right sides of the mounting shell 1.

[0030] As an improvement of the above solution, the protective cover comprises: a two-part cover, a spring and two guide shafts; Among them, each of the sub-covers is respectively provided with a guide shaft, and each of the sub-covers is connected through the spring; the guide frame is provided with double grooves, and the guide grooves are provided with two, each of the guide shafts is respectively arranged in the corresponding guide groove, and each of the guide shafts is respectively arranged in the groove corresponding to the guide frame, so that when the guide frame moves, it drives the guide shaft to move, so that the guide shaft can drive the sub-cover to open or close when it moves along the guide groove.

[0031] In a specific embodiment, see Figure 1 , Figure 6 and Figure 7 , also includes: guide grooves 11 are provided on the front and rear sides of the mounting shell 1; guide shafts 12, the bottoms of the two sub-covers 401 are fixedly installed with guide shafts 12, the guide shafts 12 are slidably installed in the guide grooves 11, and the guide grooves 11 limit the moving path of the sub-covers 401 through the guide shafts 12; an electric push rod 13, the electric push rod 13 is fixedly installed on the mounting shell 1; a guide frame 14, the guide frame 14 is fixedly installed on the telescopic rod of the electric push rod 13, and the guide shaft 12 is slidably installed on the guide frame 14; a spring 15, a spring 15 is fixedly installed between the two sub-covers 401, and the spring 15 is sleeved on the guide rod of the sub-cover 401.

[0032] See also Figure 7, the telescopic rod of the electric push rod 13 is extended to control the guide frame 14 to move up, and the guide frame 14 pushes the guide shaft 12 to move up along the guide groove 11. At the same time, under the action of the guide groove 11, the two sub-covers 401 are separated, and the spring 15 is stretched, thereby opening the protection of the protective cover 4 on the opening on the mounting shell 1, that is, when the device is in use, the detection alarm 2 can better detect data; and when the device is not needed, the telescopic rod of the electric push rod 13 is controlled to be retracted, so that the two sub-covers 401 are covered back on the mounting shell 1, and the spring 15 is reset to make the two sub-covers 401 closed tightly, thereby restoring the protection function of the protective cover 4 on the detection alarm 2 and reducing the damage to the detection alarm 2 from the outside.

[0033] As an improvement of the above solution, it further includes: a cleaner; wherein the cleaner is arranged on one of the sub-covers, and the cleaner is used to clean the signal sending end of the detection alarm.

[0034] As an improvement of the above scheme, it also includes: a warning light and a sounder; wherein the warning light and the sounder are electrically connected to the detection alarm respectively; the warning light is arranged at the bottom of the mounting shell; the sounder is arranged at the bottom of the mounting shell.

[0035] In a specific embodiment, see Figure 1 , Figure 8 and Fig. 9 , and also includes: a cleaner 16, a cleaner 16 is fixedly installed on one of the sub-covers 401, the cleaner 16 is used to clean the signal sending end on the detection alarm 2, so as to ensure the quality of signal sending and receiving of the detection alarm 2 and reduce the detection error of the detection alarm 2; a warning light 17, a warning light 17 is fixedly installed on the bottom of the mounting shell 1; a sounder 18, a sounder 18 is fixedly installed on the bottom of the mounting shell 1, the warning light 17 and the sounder 18 are both connected with the electrical signal of the detection alarm 2, when the detected data exceeds the preset value, the detection alarm 2 will directly give a double warning from the hearing and vision through the warning light 17 and the sounder 18, thereby improving the warning effect of the device.

[0036] As an improvement of the above solution, the fixing assembly further includes: a handle and an electric pull rod; Wherein, the handle is arranged on the first side of the fixing component, and the electric pull rod is arranged on the second side of the fixing component; the first side is the side not connected to the alarm detector, and the second side is the side connected to the alarm detector.

[0037] See also Figure 1 , Figure 4 and Figure 5The fixed components include: a soft magnetic base 5, the front and rear sides of the soft magnetic base 5 are provided with non-magnetic strips; a constant magnetic strip 6, a constant magnetic strip 6 is rotatably installed in the middle of the soft magnetic base 5, when the constant magnetic strip 6 rotates relative to the soft magnetic base 5, the magnetization of the soft magnetic base 5 will change; a gear 7, a gear 7 is fixedly installed on the upper part of the constant magnetic strip 6; a rack 8, a rack 8 is fixedly installed on the side wall of the mounting shell 1, the rack 8 is meshed with the gear 7, when the constant magnetic strip 6 and the mounting shell 1 produce relative displacement, the rotation of the constant magnetic strip 6 can be controlled through the transmission between the gear 7 and the rack 8; a handle 9, a handle 9 is fixedly installed on the soft magnetic base 5; a damper 10, a damper 10 is fixedly installed between the soft magnetic base 5 and the mounting shell 1, the damper 10 enables the soft magnetic base 5 and the mounting shell 1 to stably perform relative displacement.

[0038] See also Fig.10 , Fig.10 1 is a flow chart of a fixed control method of a distance detection alarm device provided by an embodiment of the present invention, which is applied to the distance detection alarm device of the present invention, and includes: Step 1001: receiving a control instruction from a user; wherein the control instruction includes a fixing instruction and a releasing instruction.

[0039] Step 1002: Identify the control instruction.

[0040] Step 1003: If it is a fixed instruction, a first pull rod motion parameter is generated based on the first relative position of the constant magnetic strip and the soft magnetic base, and the telescopic rod of the electric pull rod is controlled based on the first pull rod motion parameter to push the fixed component outward, so that the gear on the fixed component changes the relative position between the constant magnetic strip connected to the gear and the soft magnetic base when rotating along the rack, so that the fixed component generates a first magnetic field strength; wherein, when the constant magnetic strip and the soft magnetic base are in the first relative position, the first magnetic field strength is generated.

[0041] Step 1004: If it is a release instruction, a second pull rod motion parameter is generated based on the second relative position of the constant magnetic strip and the soft magnetic base, and the telescopic rod of the electric pull rod is controlled based on the second pull rod motion parameter to pull the fixed component inward, so that the gear on the fixed component changes the relative position between the constant magnetic strip connected to the gear and the soft magnetic base when rotating along the rack, so that the fixed component generates a second magnetic field strength; wherein, when the constant magnetic strip and the soft magnetic base are in the second relative position, a second magnetic field strength is generated; the second magnetic field strength is much smaller than the first magnetic field strength.

[0042] In this embodiment, As an improvement of the above scheme, it also includes: Determine the state of the electric pull rod and the force applied to the electric pull rod; If the state of the electric pull rod is a damaged state, the telescopic rod in the electric pull rod is controlled to be in a relaxed state, so that the user can move the fixed component based on the handle; If the force applied to the electric pull rod is a push inward along the handle or a pull outward along the handle, it is recognized that the current user is manually fixing the distance detection alarm device, and the telescopic rod in the electric pull rod is controlled to be in a relaxed state.

[0043] In a specific embodiment, when it is necessary to use the device corresponding to this embodiment to assist the use of the crane, the operator grasps the handles 9 on both sides and pulls the handles 9 to both sides respectively. Here, it is recognized that the current user is manually fixing the distance detection alarm device, so that the soft magnetic base 5 moves away from the mounting shell 1.

[0044] Beneficial Effects The present invention provides a distance detection alarm device, comprising: a detection alarm and a mounting shell; wherein the detection alarm is arranged inside the mounting shell; a fixing component is arranged outside the mounting shell; the fixing component comprises: a soft magnetic base, a permanent magnetic strip, a gear, a rack and a handle; wherein the permanent magnetic strip is arranged at the center inside the soft magnetic base, the gear is arranged at the center of the upper part of the soft magnetic base, the side surface of the soft magnetic base is connected to the side wall of the mounting shell, and non-magnetic strip plates are arranged on the front and rear surfaces of the soft magnetic base respectively; the gear is connected to the permanent magnetic strip so that the gear drives the permanent magnetic strip to rotate when rotating; the gear is connected to the rack, and the rack is connected to the side wall of the mounting shell. The present invention sets a soft magnetic base and a permanent magnetic strip in the fixed assembly on the mounting shell, so that the mounting shell can be adsorbed on the mechanical equipment by magnetism. At the same time, the relative position between the soft magnetic base and the permanent magnetic strip can be changed by the gear and the rack to realize whether the soft magnetic base is attached to magnetism or not, so that the present invention can conveniently control magnetism, so that the detection alarm can be conveniently adsorbed and fixed to the mechanical equipment, solving the problem of difficulty in installation and disassembly of the detection alarm device, and improving the installation efficiency of the detection alarm device. Further, the present invention sets a protective cover that can be opened and closed freely, which is closed when not in use to protect the detection alarm, and opened when in use, so that the detection alarm can better send and receive detection signals, that is, the present invention can be freely controlled according to the use needs, thereby improving the use effect of the present invention; further, the present invention sets a warning light and a sounder that can provide dual warnings from the visual and auditory aspects, thereby improving the warning effect of the device.

[0045] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A distance detection alarm device, characterized in that: include: A detection alarm and a mounting shell; wherein the detection alarm is arranged inside the mounting shell; A fixing component is arranged on the outside of the mounting shell; the fixing component includes: a soft magnetic base, a permanent magnetic strip, a gear and a rack; wherein the permanent magnetic strip is arranged at the center of the inside of the soft magnetic base, the gear is arranged at the center of the upper part of the soft magnetic base, the side of the soft magnetic base is connected to the side wall of the mounting shell, and the front and rear surfaces of the soft magnetic base are respectively provided with non-magnetic strip plates; the gear is connected to the permanent magnetic strip so that the gear drives the permanent magnetic strip to rotate when it rotates; the gear is connected to the rack, and the rack is connected to the side wall of the mounting shell.

2. The distance detection alarm device according to claim 1, characterized in that: The fixing assembly further includes: a damper; wherein the soft magnetic base and the mounting shell are connected via the damper.

3. The distance detection alarm device according to claim 2, characterized in that: The number of the fixing components provided is at least two.

4. The distance detection alarm device according to claim 3, characterized in that: The fixing assembly also includes: a protective cover, a drainage groove, a guide groove, an electric push rod and a guide frame; wherein the protective cover is connected to the upper part of the mounting shell; the upper part of the mounting shell is an open structure, and the ground of the drainage groove is inclined so that water entering the open structure can be discharged through the drainage groove; the guide groove, the electric push rod and the guide frame are arranged at the rear part of the mounting shell; the telescopic rod of the electric push rod is connected to the guide frame so that the guide frame moves based on the control of the telescopic rod by the electric push rod.

5. The distance detection alarm device according to claim 4, characterized in that: The protective cover comprises: a two-part cover, a spring and two guide shafts; Among them, each of the sub-covers is respectively provided with a guide shaft, and each of the sub-covers is connected through the spring; the guide frame is provided with double grooves, and the guide grooves are provided with two, each of the guide shafts is respectively arranged in the corresponding guide groove, and each of the guide shafts is respectively arranged in the groove corresponding to the guide frame, so that when the guide frame moves, it drives the guide shaft to move, so that the guide shaft can drive the sub-cover to open or close when it moves along the guide groove.

6. The distance detection alarm device according to claim 5, characterized in that: Also includes: Cleaner; wherein, the cleaner is arranged on one of the sub-covers, and the cleaner is used to clean the signal sending end on the detection alarm.

7. The distance detection alarm device according to claim 3, characterized in that: Also includes: A warning light and a sounder; wherein the warning light and the sounder are electrically connected to the detection alarm respectively; the warning light is arranged at the bottom of the mounting shell; The buzzer is arranged at the bottom of the installation shell.

8. The distance detection alarm device according to any one of claims 1 to 7, characterized in that: The fixing assembly further includes: a handle and an electric pull rod; Wherein, the handle is arranged on the first side of the fixing component, and the electric pull rod is arranged on the second side of the fixing component; the first side is the side not connected to the alarm detector, and the second side is the side connected to the alarm detector.

9. A fixed control method for a distance detection alarm device, characterized in that: The distance detection alarm device as claimed in claim 8 comprises: Receiving a control instruction from a user; wherein the control instruction includes: a fixing instruction and a releasing instruction; identifying the control instruction; If it is a fixed instruction, a first pull rod motion parameter is generated based on the first relative position of the permanent magnetic strip and the soft magnetic base, and the telescopic rod of the electric pull rod is controlled based on the first pull rod motion parameter to push the fixed component outward, so that when the gear on the fixed component rotates along the rack, the relative position between the permanent magnetic strip connected to the gear and the soft magnetic base is changed, so that the fixed component generates a first magnetic field strength; wherein, when the permanent magnetic strip and the soft magnetic base are in the first relative position, the first magnetic field strength is generated; If it is a release instruction, a second pull rod motion parameter is generated based on the second relative position of the permanent magnetic strip and the soft magnetic base, and the telescopic rod of the electric pull rod is controlled based on the second pull rod motion parameter to pull the fixed component inward, so that the gear on the fixed component changes the relative position between the permanent magnetic strip connected to the gear and the soft magnetic base when rotating along the rack, so that the fixed component generates a second magnetic field strength; wherein, when the permanent magnetic strip and the soft magnetic base are in the second relative position, a second magnetic field strength is generated; the second magnetic field strength is much smaller than the first magnetic field strength.

10. The fixed control method of the distance detection alarm device according to claim 9, characterized in that: Also includes: Determine the state of the electric pull rod and the force applied to the electric pull rod; If the state of the electric pull rod is a damaged state, the telescopic rod in the electric pull rod is controlled to be in a relaxed state, so that the user can move the fixed component based on the handle; If the force applied to the electric pull rod is a push inward along the handle or a pull outward along the handle, it is recognized that the current user is manually fixing the distance detection alarm device, and the telescopic rod in the electric pull rod is controlled to be in a relaxed state.

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