Damage-proof alarm device for municipal service all-in-one machine

By designing movable protective panels and alarm mechanisms on the municipal service kiosks, the problem of preventing equipment damage was solved, achieving protection and alarm functions for the screen and cameras, and reducing losses.

CN121747248APending Publication Date: 2026-03-27BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-05
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

The existing municipal service kiosks lack anti-vandalism mechanisms, leaving the equipment vulnerable to theft or damage when subjected to external attacks.

Method used

Design a protective mechanism including a movable protective plate, a locking element, a transmission component, and an alarm mechanism. The movement of the force plate drives the locking element to unlock the protective plate, unfolding to cover the operating interface and emitting an alarm sound.

Benefits of technology

It effectively protects vulnerable areas such as the screen and camera of the municipal service kiosk, prevents theft, reduces losses, and achieves alarm effects through mechanical linkage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a breakage-proof alarm device for a municipal service all-in-one machine. The breakage-proof alarm device comprises a machine body with a containing cavity, a protection mechanism and an alarm mechanism, wherein the protection mechanism and the alarm mechanism are arranged on the machine body; the protection mechanism comprises a protection plate movably arranged on the machine body, a locking piece used for locking the protection plate at the folding position, a stress plate arranged on the outer side of the machine body, a transmission assembly used for connecting the stress plate and the locking piece, and a movement structure connected with the protection plate. The transmission assembly is configured to generate displacement when the stress plate is stressed to move and drive the locking piece to move so as to unlock the protection plate by the locking piece; the moving structure is used for driving the protection plate to move to the unfolding position to shield the operation interface area of the machine body after the locking of the locking piece is released; and the alarm mechanism is configured to give an alarm sound when being impacted by the protection plate in the unfolding process of the protection plate. According to the device, the protection effect of the machine body can be improved, loss is reduced, and the alarm effect is achieved through impact sound production while protection action occurs.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of municipal service all-in-one machine. More particularly, it relates to a damage-preventing alarm device for municipal service all-in-one machine. BACKGROUND

[0002] The municipal service all-in-one machine integrates advanced technologies such as high-precision automation, artificial intelligence, portrait recognition, and automatic erasing and writing of certificates, relies on public security self-service terminals, and unifies platforms, designs, services, and operation and maintenance, covering high-frequency government service matters of public security, justice, human resources and social security, civil affairs, housing and construction, agriculture, health and family planning, market supervision, taxation, and the Disabled Persons Federation, and breaking through government services.

[0003] In the prior art, most all-in-one machines do not have a damage-preventing mechanism, so when the equipment is damaged externally, the entire equipment cannot be protected, resulting in theft or damage to the entire equipment and causing great losses. SUMMARY

[0004] The present application relates to the technical field of municipal service all-in-one machine. More particularly, it relates to a damage-preventing alarm device for municipal service all-in-one machine.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows: The present application provides a damage-preventing alarm device for municipal service all-in-one machine, comprising: a machine body having a receiving cavity, a protection mechanism arranged on the machine body, and an alarm mechanism arranged on the machine body; The protection mechanism comprises a movable protection plate arranged on the machine body, a locking member for locking the protection plate in a retracted position, a force receiving plate arranged on the outer side of the machine body, a transmission assembly connecting the force receiving plate and the locking member, and a movement structure connected to the protection plate; The transmission assembly is configured to generate displacement when the force receiving plate is forced to move, and drive the locking member to move to release the locking of the protection plate by the locking member; the movement structure is used to drive the protection plate to move to the unfolded position to shield the operation interface area of the machine body after the locking member is unlocked; The alarm mechanism is configured to be hit by the protection plate during the unfolding of the protection plate to emit an alarm sound.

[0006] Preferably, the protection plate is movably arranged on the machine body through the movement structure; the movement structure comprises a fixed frame fixedly connected to the outer wall of the machine body, a first recess is formed in the fixed frame, a sliding rod is fixedly installed in the first recess, a sliding block is slidably sleeved on the sliding rod, a second spring is installed in the first recess and connected to the sliding block and the inner wall of the first recess at both ends, a rotating column is arranged on the sliding block, and a connecting rod is connected to the rotating column at one end, and the other end of the connecting rod is fixedly connected to the protection plate; The slider has a second groove; the side wall of the second groove has a rotating hole; a torsion spring is installed in the rotating hole; the rotating column is rotatably set through the rotating hole on the slider; the two ends of the torsion spring are respectively fixedly connected to the inner wall of the rotating hole and the rotating column.

[0007] A preferred embodiment is that the protective plate is provided with a limiting hole; the locking member includes a limiting rod that is movably disposed on the body in the vertical direction and a stop rod located inside the body connected to the limiting rod, the limiting rod being configured to be inserted into the limiting hole on the protective plate in the locked state; the stop rod is used to abut against the transmission assembly.

[0008] A preferred embodiment is that the side wall of the body has a sliding hole; the transmission assembly includes a connecting post fixedly connected to the force plate at one end and slidably passing through the sliding hole, and a movable plate fixedly connected to the other end of the connecting post located in the receiving cavity; the lower end of the abutment rod abuts against the movable plate; a through hole is opened at the top of the movable plate; a circular hole is opened at the bottom of the movable plate, a first spring and a sliding post are arranged in the circular hole, one end of the sliding post is elastically supported in the circular hole by the first spring, and a locking block is fixedly connected to the outer wall of the sliding post; a plurality of locking slots are opened in the inner wall of the receiving cavity of the body; the locking block is locked into one of the locking slots under the elastic force of the first spring; when the force plate is impacted and drives the connecting post and the movable plate to move, the locking block is squeezed by the inner wall of the locking slot, causing the sliding post to compress the first spring and disengage from the current locking slot, and lock into the next locking slot; the through hole is configured such that when the movable plate moves to the unlocking position, the lower end of the abutment rod is inserted downward into the through hole, and the limiting rod disengages from the limiting hole to unlock the protective plate.

[0009] A preferred embodiment is that the alarm mechanism includes a striking plate fixed to the fixed frame; a striking frame fixed to the body, the top of the striking frame having a connecting hole and one side of the striking frame having a connecting groove; and a loudspeaker cover connected to the end of the striking frame having the connecting groove.

[0010] A preferred embodiment is that the anti-vandalism alarm device further includes a support base disposed at the bottom of the body and an adjustment mechanism disposed below the alarm mechanism; The adjustment mechanism includes a motor fixedly mounted on the support base, a bidirectional lead screw fixedly connected to the output end of the motor, two threaded blocks symmetrically threaded onto the bidirectional lead screw, extrusion rollers fixedly connected to the threaded blocks, an extrusion block fixedly connected to the bottom end of the machine body, and a support cover fixedly connected to the support base. The extrusion block has an inclined surface that mates with the extrusion rollers. A sliding groove is provided at the bottom end of the machine body. The support base is slidably connected to the machine body through the sliding groove. The motor drives the bidirectional lead screw to rotate, causing the two threaded blocks to move towards or away from each other, and then the extrusion rollers roll on the inclined surface of the extrusion block, driving the machine body to rise and fall relative to the support cover.

[0011] The preferred embodiment is that there are two fixing frames, which are symmetrically arranged on the outer wall of the machine body; There are two force-bearing plates, which are symmetrically distributed on opposite sides of the body.

[0012] The preferred embodiment is that the outer wall of the support cover fits snugly against the inner wall of the sliding groove.

[0013] A preferred embodiment is that the body is provided with a limiting plate located above the striking frame, and the limiting plate includes a limiting through groove for the protective plate to pass through.

[0014] The preferred embodiment is that the connecting holes are evenly and equidistantly distributed on the striking frame.

[0015] The beneficial effects of this invention are as follows: This invention provides a vandal-proof alarm device for an integrated municipal service machine, comprising a body with a receiving cavity, a protective mechanism, and an alarm mechanism mounted on the body. The protective mechanism includes a movable protective plate mounted on the body, a locking member for locking the protective plate in a retracted position, a force-bearing plate disposed on the outside of the body, a transmission assembly connecting the force-bearing plate and the locking member, and a motion structure connected to the protective plate. The transmission assembly is configured to generate displacement when the force-bearing plate is subjected to force, driving the locking member to move and release the locking member from the protective plate. The motion structure is used to drive the protective plate to an unfolded position after the locking member is released, thereby shielding the machine's operating interface area. The alarm mechanism is configured to sound an alarm when the protective plate is struck during its unfolding process. This invention uses a protective plate to protect vulnerable operating interface components such as the screen and camera of the machine, preventing the theft of the screen and camera for a certain period, improving the machine's protective effect, and reducing losses. Furthermore, it works in conjunction with the alarm mechanism through a purely mechanical linkage with the movement of the protective mechanism, achieving an alarm effect by emitting a sound upon impact when the protective action occurs. Attached Figure Description

[0016] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of the anti-vandalism alarm device of the present invention.

[0018] Figure 2 This is a schematic diagram of the internal structure of the back of the anti-vandalism alarm device of the present invention.

[0019] Figure 3 This is a schematic diagram of the protective mechanism of the anti-vandalism alarm device of the present invention. Figure 1 .

[0020] Figure 4 This is a schematic diagram of the protective mechanism of the anti-vandalism alarm device of the present invention. Figure 2 .

[0021] Figure 5 This is a schematic diagram of the protective mechanism of the anti-vandalism alarm device of the present invention. Figure 3 .

[0022] Figure 6 This is a schematic diagram of the alarm mechanism structure of the anti-vandalism alarm device of the present invention.

[0023] Figure 7 This is a schematic diagram of the assembly of the adjustment mechanism and the main body of the anti-vandalism alarm device of the present invention. Detailed Implementation

[0024] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention.

[0025] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0026] Technologies and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such technologies and equipment should be considered part of the specification.

[0027] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0029] To address the problem that most existing integrated machines lack anti-vandalism mechanisms, leaving them vulnerable to theft or damage and significant losses when subjected to external damage, this invention provides an anti-vandalism alarm device for municipal service integrated machines. Combined with... Figures 1 to 7 As shown, the anti-vandalism alarm device for the municipal service integrated machine specifically includes: a body 1 with a receiving cavity, and a protective mechanism 31 and an alarm mechanism 32 disposed on the body 1; the protective mechanism 31 includes a movable protective plate 3118 disposed on the body 1, a locking member for locking the protective plate 3118 in a retracted position, a force-bearing plate 312 disposed on the outside of the body 1, a transmission assembly for connecting the force-bearing plate 312 and the locking member, and a motion structure connected to the protective plate 3118. The transmission assembly is configured to generate displacement when the force-bearing plate 312 is moved under force, and drive the locking member to move to release the locking member from locking the protective plate 3118. The motion structure is used to drive the protective plate 3118 to an unfolded position after the locking member is released to cover the operating interface area of ​​the body 1; the alarm mechanism 32 is configured to be struck by the protective plate 3118 during the unfolding process to achieve an alarm effect. When the force plate 312 moves under force, the transmission component will be displaced and drive the locking member to move to perform the unlocking action. After unlocking, the protective plate 3118 moves and covers the screen and camera in the operation interface area. The protective plate 3118 can protect the relatively vulnerable parts of the body 1, such as the screen and camera, and can prevent the theft of the screen and camera for a certain period of time, thereby improving the protection effect of the body and reducing losses.

[0030] In one specific embodiment, the protective plate 3118 is movably mounted on the body 1 via a moving structure; the moving structure includes a fixed frame 3111 fixedly connected to the outer wall of the body 1, on which a first groove is formed; a slide rod 3112 fixedly installed in the first groove; a slider 3113 slidably sleeved on the slide rod 3112; a second spring 3114 installed in the first groove and connected at both ends to the slider 3113 and the inner wall of the first groove, respectively; a rotating column 3116 disposed on the slider 3113 and a connecting rod 3117 connected at one end to the rotating column 3116, the other end of the connecting rod 3117 being fixedly connected to the protective plate 3118; a second groove is formed on the slider 3113; a rotating hole is formed on the side wall of the second groove; a torsion spring 3115 is installed in the rotating hole; the rotating column 3116 is rotatably mounted through the rotating hole formed on the slider 3113; the two ends of the torsion spring 3115 are fixedly connected to the inner wall of the rotating hole and the rotating column 3116, respectively.

[0031] Furthermore, the protective plate 3118 is provided with a limiting hole; the locking member includes a limiting rod 3110 that is movably disposed on the body 1 in the vertical direction and a stop rod 319 connected to the limiting rod 3110 and located inside the body 1. The limiting rod 3110 is configured to be inserted into the limiting hole on the protective plate 3118 in the locked state; the stop rod 319 is used to abut against the transmission assembly.

[0032] More specifically, the side wall of the body 1 has a sliding hole; the transmission assembly includes a connecting post 311 fixedly connected to the force plate 312 at one end and slidably passing through the sliding hole, and a moving plate 313 fixedly connected to the other end of the connecting post 311 located in the receiving cavity; the lower end of the push rod 319 abuts against the moving plate 313; a through hole 318 is opened at the top of the moving plate 313; a circular hole is opened at the bottom of the moving plate 313, a first spring 314 and a sliding post 315 are arranged in the circular hole, one end of the sliding post 315 is elastically supported in the circular hole by the first spring 314, and a locking block 316 is fixedly connected to the outer wall of the sliding post 315. The inner wall of the receiving cavity of the body 1 is provided with several slots 317; the locking block 316 is locked into one of the slots 317 under the elastic force of the first spring 314; when the force plate 312 is impacted and drives the connecting column 311 and the moving plate 313 to move, the locking block 316 is squeezed by the inner wall of the slot 317, causing the sliding column 315 to compress the first spring 314 upward and disengage from the current slot 317, and lock into the next slot 317; the through hole 318 is configured such that when the moving plate 313 moves to the unlocking position, the lower end of the abutment rod 319 is inserted downward into the through hole 318, and the limiting rod 3110 disengages from the limiting hole to unlock the protective plate 3118.

[0033] In one specific embodiment, the alarm mechanism 32 includes a striking plate 321 fixed to the fixed frame 3111; a striking frame 322 fixed to the body 1, the top of the striking frame 322 having a plurality of connecting holes 323, and one side of the striking frame 322 having a connecting groove 324; and a loudspeaker cover 325 connected to the end of the striking frame 322 with the connecting groove 324. The connecting holes 323 are evenly and equidistantly distributed on the top of the striking frame 322. When the striking frame 322 is struck, its sound is transmitted through the evenly distributed connecting holes 323 to the connecting groove 324, and then through the loudspeaker covers 325 at both ends to achieve the effect of amplifying the alarm. Both the striking plate 321 and the striking frame 322 are made of iron, so when the striking plate 321 and the striking frame 322 are struck by the protective plate 3118, they will produce a sound, which is used to alert the surrounding security personnel and improve the alarm warning effect.

[0034] In one specific embodiment, the anti-vandalism alarm device further includes a support base 2 disposed at the bottom end of the body 1 and an adjustment mechanism 33 disposed below the alarm mechanism 32. The top end of the support base 2 is provided with a limiting groove; the adjustment mechanism 33 includes a motor 331 fixedly installed in the limiting groove at the top end of the support base 2, a bidirectional lead screw 332 fixedly connected to the output end of the motor 331, two threaded blocks 333 symmetrically threaded onto the bidirectional lead screw 332, a pressing roller 334 fixedly connected to the threaded block 333, a pressing block 337 fixedly connected to the bottom end of the body 1, and a support cover 335 fixedly connected to the support base 2; the pressing block 337 has an inclined surface that cooperates with the pressing roller 334. The bottom end of the machine body 1 is provided with a sliding groove 336; the support base 2 is slidably connected to the machine body 1 through the sliding groove 336; the motor 331 drives the bidirectional lead screw 332 to rotate, causing two threaded blocks 333 to move towards or away from each other, and then the extrusion rollers 334 roll on the inclined surface of the extrusion block 337, driving the machine body 1 to rise and fall relative to the support cover 335. There are two extrusion blocks 337, which are symmetrically distributed on the bottom end of the machine body 1, providing uniform support to the left and right sides of the bottom end of the machine body 1. The inclined surface on the extrusion block 337 ensures that the extrusion rollers 334 on both sides continuously apply extrusion force to the extrusion block 337 during movement, ensuring that the extrusion block 337 and the machine body 1 fixed thereto can be driven to produce vertical displacement to achieve rising and falling. Furthermore, the outer wall of the support cover 335 is fitted to the inner wall of the sliding groove 336, which can ensure a tight fit between the outer wall of the support cover 335 and the inner wall of the sliding groove 336, thereby ensuring the support stability of the support cover 335.

[0035] Furthermore, there are two fixed frames 3111, symmetrically arranged on the outer wall of the body 1. This allows for simultaneous support of both sides of the protective plate 3118, ensuring the stability of the moving support of the protective plate 3118 and thus improving its protective effect on the body 1. There are also two force-bearing plates 312, symmetrically distributed on opposite sides of the body 1, with their outer walls fitting snugly against the outer wall of the body 1. This allows for simultaneous protection of both sides of the body 1. When either side of the body 1 is subjected to a strong impact, the protective plate 3118 can be activated for protection.

[0036] In one specific embodiment, the body 1 is provided with a limiting plate 3119 located above the striking frame 322. The limiting plate 3119 includes a limiting through groove for the protective plate 3118 to pass through, and the limiting plate 3119 can limit the protective plate 3118.

[0037] The working principle of the anti-vandalism alarm device of the present invention is as follows: When the body 1 is violently damaged by external force, and the force plate 312 is squeezed by the impact force, it will push the connecting column 311 to move inward, thereby driving the moving plate 313 to move. The movement of the moving plate 313 will drive the sliding column 315 and the locking block 316 to move. At this time, the locking block 316 will be squeezed by the inner wall of the locking groove 317, driving the sliding column 315 to move upward, while squeezing the first spring 314, until the locking block 316 disengages from the inner wall of the current locking groove 317. As it continues to move, the locking block 316 will be locked in the next locking groove 317. This movement requires the force plate 312 to be subjected to a large impact force to squeeze and move the locking block 316, thereby preventing accidental activation during normal use. As the moving plate 313 moves, causing the through hole 318 to move to the position of the abutment rod 319, the abutment rod 319 will move downwards, thereby causing the limiting rod 3110 to disengage from the limiting hole on the outer wall of the protective plate 3118. This causes the protective plate 3118 to lose its limiting position. At this time, the second spring 3114 will rebound, causing the slider 3113 to move downwards on the outer wall of the slider 3112. During this process, the torsion spring 3115 will reset and rotate, causing the rotating column 3116 to reset and rotate, thereby causing the connecting rod 3117 to move downwards from the protective plate 3118. The plate 3118 rotates until it rotates to a state parallel to the fixed frame 3111. At the same time, as the slider 3113 moves downward, the outer wall of the protective plate 3118 can be inserted into the limiting slot on the limiting plate 3119, thus limiting the protective plate 3118. In this way, the protective plate 3118 can protect the relatively fragile parts of the machine body such as the screen and camera, and can prevent the theft of the screen and camera for a certain period of time, thereby improving the protection effect of the machine body 1 and reducing losses.

[0038] When the protective plate 3118 is rotated and reset by the torsion spring 3115, it can contact and strike the striking plate 321. Since the striking plate 321 is made of metal, it will make a sound when struck to alert nearby security personnel and serve as an alarm. At the same time, as the slider 3113 moves downward and resets quickly, it causes the protective plate 3118 to contact and strike the striking frame 322. Since the striking frame 322 is made of metal, it will make a secondary sound. The secondary sound will be transmitted to the connecting slot 324 through the connecting hole 323, and finally amplified by the sound amplification cover 325, thereby improving the overall alarm effect.

[0039] When the height of the machine body 1 needs to be adjusted, the motor 331 can be started. Its output end will drive the bidirectional lead screw 332 to rotate. The rotation of the bidirectional lead screw 332 will drive the left and right threaded blocks 333 to move closer to the center. At the same time, the threaded blocks 333 will drive the pressing roller 334 to move until the pressing roller 334 moves to contact the pressing block 337 and presses the pressing block 337. The pressed pressing block 337 will drive the machine body 1 to move upward, thereby adjusting the overall height of the machine body 1 to accommodate users of different heights and improve the applicability of the overall equipment. During the rising process, the support cover 335 will move in the sliding groove 336. The support cover 335 can protect the adjustment mechanism 33 and also provide stable support for the overall equipment.

[0040] In summary, this invention provides a vandal-proof alarm device for an integrated municipal service machine, comprising a body with a receiving cavity and a protective mechanism and an alarm mechanism disposed on the body. The protective mechanism includes a movable protective plate disposed on the body, a locking member for locking the protective plate in a retracted position, a force-bearing plate disposed on the outside of the body, a transmission assembly for connecting the force-bearing plate and the locking member, and a motion structure connected to the protective plate. The transmission assembly is configured to generate displacement when the force-bearing plate is subjected to force and to drive the locking member to move, thereby releasing the locking member from locking the protective plate. The motion structure is used to drive the protective plate to an unfolded position after the locking member is released, thereby shielding the operating interface area of ​​the machine. The alarm mechanism is configured to emit an alarm sound when the protective plate is struck during the unfolding process. This invention can protect vulnerable operating interface components such as the screen and camera of the machine through the protective plate, preventing the theft of the screen and camera for a certain period of time, improving the protective effect of the machine, and reducing losses. Furthermore, it works in conjunction with the alarm mechanism through a purely mechanical linkage with the movement of the protective mechanism, achieving an alarm effect by emitting a sound upon impact when the protective action occurs.

[0041] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. All obvious variations or modifications derived from the technical solutions of the present invention are still within the protection scope of the present invention.

Claims

1. A vandal-proof alarm device for an integrated municipal service machine, characterized in that, include: The body has a receiving cavity, and protective and alarm mechanisms are installed on the body; The protective mechanism includes a movable protective plate mounted on the body, a locking member for locking the protective plate in a retracted position, a force-bearing plate mounted on the outside of the body, a transmission assembly for connecting the force-bearing plate and the locking member, and a moving structure connected to the protective plate. The transmission assembly is configured to generate displacement when the force plate is moved under force, and drive the locking member to move to release the locking member from the protective plate; the motion structure is used to drive the protective plate to the unfolded position after the locking member is released to cover the operating interface area of ​​the machine body. The alarm mechanism is configured to sound an alarm when the protective panel is struck during its unfolding process.

2. The anti-vandalism alarm device for an integrated municipal service machine according to claim 1, characterized in that, The protective plate is movably mounted on the body via a moving structure; the moving structure includes a fixed frame fixedly connected to the outer wall of the body, with a first groove formed thereon; a slide rod fixedly installed in the first groove; a slider slidably sleeved on the slide rod; a second spring installed in the first groove and connected at both ends to the slider and the inner wall of the first groove respectively; a rotating column disposed on the slider and a connecting rod connected at one end to the rotating column, the other end of the connecting rod being fixedly connected to the protective plate; The slider has a second groove; the side wall of the second groove has a rotating hole; a torsion spring is installed in the rotating hole; the rotating column is rotatably set through the rotating hole on the slider; the two ends of the torsion spring are respectively fixedly connected to the inner wall of the rotating hole and the rotating column.

3. The anti-vandalism alarm device for an integrated municipal service machine according to claim 2, characterized in that, The protective plate is provided with a limiting hole; the locking member includes a limiting rod that is movably disposed on the body in the vertical direction and a stop rod located inside the body connected to the limiting rod. The limiting rod is configured to be inserted into the limiting hole on the protective plate in the locked state; the stop rod is used to abut against the transmission component.

4. The anti-vandalism alarm device for an integrated municipal service machine according to claim 3, characterized in that, The side wall of the body has a sliding hole; the transmission assembly includes a connecting column fixedly connected to the force plate at one end and slidably passing through the sliding hole, and a moving plate fixedly connected to the other end of the connecting column located in the receiving cavity; the lower end of the abutment rod abuts against the moving plate; the top of the moving plate has a through hole; the bottom of the moving plate has a circular hole, in which a first spring and a sliding column are disposed, one end of the sliding column is elastically supported in the circular hole by the first spring, and a locking block is fixedly connected to the outer wall of the sliding column; the inner wall of the receiving cavity of the body has several locking slots; the locking block is locked into one of the locking slots under the elastic force of the first spring; when the force plate is impacted and drives the connecting column and the moving plate to move, the locking block is squeezed by the inner wall of the locking slot, causing the sliding column to compress the first spring and disengage from the current locking slot, and lock into the next locking slot; the through hole is configured such that when the moving plate moves to the unlocking position, the lower end of the abutment rod is inserted downward into the through hole, and the limiting rod disengages from the limiting hole to unlock the protective plate.

5. The anti-vandalism alarm device for an integrated municipal service machine according to claim 2, characterized in that, The alarm mechanism includes a striking plate fixed to the fixed frame; a striking frame fixed to the body, the top of the striking frame having a connecting hole and one side of the striking frame having a connecting groove; and a loudspeaker cover connected to the end of the striking frame with the connecting groove.

6. The anti-vandalism alarm device for an integrated municipal service machine according to claim 5, characterized in that, The anti-vandalism alarm device also includes a support base located at the bottom of the body and an adjustment mechanism located below the alarm mechanism. The adjustment mechanism includes a motor fixedly mounted on the support base, a bidirectional lead screw fixedly connected to the output end of the motor, two threaded blocks symmetrically threaded onto the bidirectional lead screw, extrusion rollers fixedly connected to the threaded blocks, an extrusion block fixedly connected to the bottom end of the machine body, and a support cover fixedly connected to the support base. The extrusion block has an inclined surface that mates with the extrusion rollers. A sliding groove is provided at the bottom end of the machine body. The support base is slidably connected to the machine body through the sliding groove. The motor drives the bidirectional lead screw to rotate, causing the two threaded blocks to move towards or away from each other, and then the extrusion rollers roll on the inclined surface of the extrusion block, driving the machine body to rise and fall relative to the support cover.

7. The anti-vandalism alarm device for an integrated municipal service machine according to claim 2, characterized in that, The number of fixing frames is two, and the two fixing frames are symmetrically arranged on the outer wall of the body; There are two force-bearing plates, which are symmetrically distributed on opposite sides of the body.

8. The anti-vandalism alarm device for an integrated municipal service machine according to claim 6, characterized in that, The outer wall of the support cover fits snugly against the inner wall of the sliding groove.

9. The anti-vandalism alarm device for an integrated municipal service machine according to claim 5, characterized in that, The body is provided with a limiting plate located above the striking frame, and the limiting plate includes a limiting through groove for the protective plate to pass through.

10. The anti-vandalism alarm device for an integrated municipal service machine according to claim 5, characterized in that, The connecting holes are evenly and equidistantly distributed on the striking frame.