CN112628575A

CN112628575A - Digital safety inspection device

Info

Publication number: CN112628575A
Application number: CN202011533650.4A
Authority: CN
Inventors: 崔希国; 陈伟; 刘长富; 陆永生; 李立媛; 杨小栋
Original assignee: Linyi Mining Group Co Ltd
Current assignee: Shandong Energy Group Luxi Mining Co ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-04-09
Anticipated expiration: 2040-12-23
Also published as: CN112628575B

Abstract

The invention discloses a digital safety detection device, which relates to the technical field of mechanical equipment and comprises a detection mechanism, wherein the detection mechanism comprises a shell, a detection control module and a power module, the detection control module is fixedly arranged in the shell, the power module is fixedly arranged in the shell on one side of the detection control module, a bottom protective shell is connected to the lower side panel and the two opposite side panels of the shell through buffer springs, a connecting frame is fixedly connected to the shell through bolts, the connecting frame comprises two fixing frames, and the number of the fixing frames is two. The detection mechanism, the detection mechanism and the power adjusting mechanism are matched with each other, so that the self-propelled type tunnel walking robot has self-propelled capacity, the crawler-type design can deal with the rugged ground of a coal mine tunnel, the condition of rollover caused by the rugged ground during walking is reduced, and great guarantee is provided for checking dangerous tunnels.

Description

Digital safety inspection device

Technical Field

The invention relates to a detection device, relates to the technical field of mechanical equipment, and particularly relates to a digital safety detection device.

Background

The detection device is an intelligent machine capable of working semi-autonomously or fully autonomously, the situations of harm to workers in the tunnel of the coal mine are very many, the situation is completed by the detection device when safety monitoring is carried out, and the safety monitoring can be greatly reduced or casualties of the workers can be avoided.

The following problems exist in the prior art:

1. in the prior art, most tunnel safety detection devices are installed, do not have a mobile detection function, and have the problems of inconvenient installation for some coal mine tunnels with more toxic gas and unstable structures, and detection leaks and defects exist during use;

2. in the prior art, the safety detection of the tunnel is mostly used in the environment where workers such as a cable tunnel cannot enter, and the defects that the tunnel is not suitable for a coal mine tunnel exist in the aspects of detection, image sampling and the like, and technical defects exist.

Disclosure of Invention

The invention provides a digital safety detection device, which aims to replace manual detection and solve the problem of accidents caused by worker detection; wherein another purpose is in order to solve the current little problem of detection device application scope to reach the effect that can detect the colliery tunnel comprehensively.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

a digital safety detection device comprises a detection mechanism, wherein the detection mechanism comprises a shell, a detection control module and a power module, the detection control module is fixedly arranged in the shell, the power module is fixedly arranged in the shell on one side of the detection control module, a bottom protective shell is connected to the lower side panel and the opposite two side panels of the shell through buffer springs, a connecting frame is fixedly connected to the shell through bolts and comprises two fixing frames, the two fixing frames are respectively fixedly arranged on the two side panels, far away from the bottom protective shell, of the shell through bolts, the two fixing frames are both connected with a filter bag mechanism, the filter bag mechanism comprises an inner frame, the inner frame is fixedly connected to one side panel, far away from the shell, of the fixing frame, the four side panels of the inner frame are respectively and rotatably connected with two first force arms and two second force arms through strong torsion spring hinges, every one the arm of force and No. two arms of force keep away from one of powerful torsional spring hinge and serve and all rotate to be connected with from driving wheel, four No. two equal transmission connection of arm of force is on the inboard of track body, the transmission is connected with guiding mechanism and power adjustment mechanism on the track body, guiding mechanism is two sets of, and is two sets of the guiding mechanism symmetry sets up the both sides at power adjustment mechanism, guiding mechanism includes the leading wheel, the transmission is connected between the lateral surface of leading wheel and track body, power adjustment mechanism includes in-wheel motor, the transmission is connected between in-wheel motor and the inboard of track body between two leading wheels.

The technical scheme of the invention is further improved as follows: detect the embedded groove of sunken being equipped with in the shell that control module group and power module top correspond, the embedded inslot internal rotation is connected with the support plate, it is connected with transmission connecting rod to rotate on keeping away from its pivoted a downside to the support plate, transmission connecting rod rotates on keeping away from the one end of support plate and is connected with the lead screw slider, lead screw slider threaded connection has a lead screw unit, No. one lead screw unit runs through on the shell inner wall that the embedded groove corresponds including setting up, the upside panel of support plate is close to the embedded high definition digtal camera of installing of department in one side of transmission connecting rod, embedded LED lamp board group of installing on the support plate that near support plate pivoted one side of high definition digtal camera head corresponds.

The technical scheme of the invention is further improved as follows: axle head department fixed mounting of in-wheel motor carries on the seat at the motor, sliding connection has two gag lever posts that are parallel to each other on the seat is carried to the motor, two motor between the gag lever post carries the seat and goes up the transmission and be connected with No. two lead screw units, No. two lead screw unit fixed mounting is on the rack, it has the rail groove to run through to open on the rack, the axle head of in-wheel motor runs through the rail groove setting, the rack vertical fixation welds the upside edge at the inner tower.

The technical scheme of the invention is further improved as follows: the axle head of leading wheel rotates to be connected on the axle support plate, fixed welding has the buffer on the axle support plate, the perpendicular fixed welding of buffer is on the upside edge of inner tower.

The technical scheme of the invention is further improved as follows: two adjacent setting between the arm of force, and two the arm of force is located the relative both sides long limit termination point department of inner tower respectively No. one, No. two arm of force sets up the top at the arm of force.

The technical scheme of the invention is further improved as follows: the two fixing frames are respectively and fixedly welded on two opposite side edges of the bearing plate in a perpendicular mode, the bearing plate is provided with spring through holes, the buffer springs are arranged in the spring through holes in a penetrating mode in a one-to-one mode, and the bearing plate is fixedly installed on the lower side panel of the shell through bolts.

The technical scheme of the invention is further improved as follows: bolt fixedly connected with transparent protective housing on the corresponding shell upside panel of embedded groove one side, transparent protective housing is the arc, the centre of rotation coincidence of the axis of circle of transparent protective housing and support plate, the diameter of transparent protective housing is greater than the length of support plate, the both sides limit and the axis of circle contained angle of transparent protective housing are the quarter circle, the length of transparent protective housing is greater than the wide end of support plate.

The technical scheme of the invention is further improved as follows: the length of the shell is smaller than the distance between the ends, far away from each other, of the two second force arms, and the height of the upper side panel of the shell is larger than the height of the top point of the driven wheel on the second force arm.

The technical scheme of the invention is further improved as follows: the rod body part of the first screw rod unit is arranged inside the embedded groove, and one end, far away from the servo motor, of the rod body part of the first screw rod unit is rotatably connected with the inner wall of the embedded groove.

The technical scheme of the invention is further improved as follows: the rod body part of the second lead screw unit is arranged on one side, away from the hub motor, of the rail frame, and one end, away from the servo motor, of the rod body part of the second lead screw unit is rotatably connected with the lower end of the rail frame.

Due to the adoption of the technical scheme, compared with the prior art, the invention has the technical progress that:

1. the invention provides a digital safety detection device, which has self-walking capability through the matching of a designed detection mechanism, the detection mechanism and a power adjusting mechanism, and the crawler-type design can deal with the uneven ground of a coal mine tunnel, so that the condition of rollover caused by the rugged ground during walking is reduced, and great guarantee is provided for the inspection of dangerous tunnels.

2. The invention provides a digital safety detection device, which drives a high-definition camera to turn over through a designed carrier plate, so that the digital safety detection device has a very wide visual field, can comprehensively sample images in a tunnel, and can avoid the problems of image sampling failure or low quality caused by no light and darkness in the tunnel by matching with an LED lamp panel group designed by the invention.

3. The invention provides a digital safety detection device, wherein a second screw rod unit is designed to drive a hub motor to move in the vertical direction, so that the tightness of a crawler body can be properly adjusted, the contact area between the crawler body and the ground can be properly increased by the looser crawler body when the crawler body travels to the bumpy road, and the stability of the crawler body in use is increased.

4. The invention provides a digital safety detection device, which guides a track body through a designed guide wheel, and meanwhile, a buffer connected with the guide wheel can also buffer when a power adjusting mechanism adjusts the tightness of the track body, so that the situation that the track body is disconnected due to excessive tensioning is avoided, and the reliability of the digital safety detection device in use is improved.

5. The invention provides a digital safety detection device, which is characterized in that a track body can be stretched into a trapezoid with a wide upper part and a narrow lower part through a designed first force arm and a second force arm, so that the climbing capability of the device is improved, and the device is more stable and smooth when the device travels on a rugged road surface.

6. The invention provides a digital safety detection device, wherein a first force arm, a second force arm and an inner frame are connected through a designed powerful torsion spring hinge, so that the positions of the first force arm and the second force arm can be changed in the using process, the digital safety detection device has the capability of self-resetting, and the disconnection probability of a track body when the track body is tensioned is further reduced.

7. The invention provides a digital safety detection device, which is characterized in that a detection mechanism is placed and supported through a designed bearing plate, so that the structural strength of connection between the detection mechanism and the whole device is greatly ensured, and the probability of loose and disintegrated structure caused by bumping is reduced.

8. The invention provides a digital safety detection device, which is characterized in that a transparent protective shell matched with the motion trail of a support plate is designed to protect the support plate, so that the probability of damage to a high-definition camera or an LED lamp panel group caused by stone falling of a roof of a coal mine tunnel is reduced, and the reliability of the digital safety detection device in use is improved.

9. The invention provides a digital safety detection device, which protects the bottom of a shell by a designed bottom protective shell, avoids the problems of abrasion and damage caused by collision between the shell and a tunnel riprap in the advancing process and improves the practicability of the digital safety detection device.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic view of the moving assembly of the present invention;

FIG. 4 is a schematic view of the external structure of the detecting mechanism of the present invention;

FIG. 5 is a schematic structural diagram of a detecting mechanism according to the present invention;

fig. 6 is a schematic view of the connecting frame structure of the present invention.

In the figure:

1. a detection mechanism; 11. a housing; 12. a detection control module; 13. a power supply module; 14. an embedded groove is formed; 15. a carrier plate; 16. a transmission connecting rod; 17. a screw rod slide block; 18. a first screw rod unit; 19. a high-definition camera; 110. an LED lamp panel group; 111. a buffer spring; 112. a bottom protective shell;

2. a connecting frame; 21. a carrier plate; 22. perforating a spring; 23. a fixed mount;

3. a filter bag mechanism; 31. an inner frame; 32. a strong torsion spring hinge; 33. a force arm I; 34. a second moment arm; 35. a driven wheel; 36. a track body;

4. a guide mechanism; 41. a guide wheel; 42. a shaft carrier plate; 43. a buffer;

5. a power adjustment mechanism; 51. a hub motor; 52. a motor carrier; 53. a limiting rod; 54. a rail frame; 55. a second screw rod unit; 56. a rail groove;

6. and (4) a transparent protective shell.

Detailed Description

The present invention will be described in further detail with reference to the following examples:

example 1

As shown in fig. 1-6, the present invention provides a digital safety detection device, which comprises a detection mechanism 1, wherein the detection mechanism 1 comprises a housing 11, a detection control module 12 and a power module 13, the detection control module 12 is fixedly installed inside the housing 11, the power module 13 is fixedly installed inside the housing 11 on one side of the detection control module 12, a bottom protective shell 112 is connected to a lower side panel and two opposite side panels of the housing 11 through a buffer spring 111, a connecting frame 2 is fixedly connected to the housing 11 through a bolt, the connecting frame 2 comprises two fixing frames 23, the number of the fixing frames 23 is two, the two fixing frames 23 are respectively fixedly installed on two side panels of the housing 11 far away from the bottom protective shell 112 through bolts, the two fixing frames 23 are respectively and vertically fixed and welded to two opposite side edges of the housing 21, the housing plate 21 is provided with spring through holes 22, the buffer springs 111 are correspondingly arranged in the spring through holes 22, the bearing plate 21 is fixedly arranged on the lower side plate of the shell 11 through bolts, the two fixing frames 23 are connected with the filter bag mechanisms 3 respectively, each filter bag mechanism 3 comprises an inner frame 31, the inner frame 31 is fixedly connected with one side surface of the fixing frame 23 far away from the shell 11 through a powerful torsion spring hinge 32, four corners of the inner frame 31 are respectively and rotatably connected with two first force arms 33 and two second force arms 34 through powerful torsion spring hinges 32, one ends of the first force arms 33 and the second force arms 34 far away from the powerful torsion spring hinges 32 are respectively and rotatably connected with driven wheels 35, the four second force arms 34 are respectively and rotatably connected on the inner side of a crawler belt body 36, the crawler belt body 36 is in transmission connection with guide mechanisms 4 and power adjusting mechanisms 5, the guide mechanisms 4 are two groups, the two groups of guide mechanisms 4 are symmetrically arranged on two sides of the power adjusting mechanisms 5, each guide mechanism 4 comprises a guide wheel 41, the shaft ends of the guide wheels 41 are rotatably connected to the shaft support plate 42, the buffer 43 is fixedly welded to the shaft support plate 42, the buffer 43 is vertically and fixedly welded to the upper side edge of the inner frame 31, the power adjusting mechanism 5 comprises a hub motor 51, and the hub motor 51 is in transmission connection with the inner side of the track body 36 between the two guide wheels 41.

In the embodiment, the designed hub motor 51 is used for providing the moving power of the invention, the designed guide wheel 41 is used for tightening and guiding the track body 36, and the designed connecting frame 2 is used for connecting the detection mechanism 1 with the filter bag mechanism 3.

As shown in fig. 1 to 3, preferably, two first force arms 33 are adjacently arranged, the two first force arms 33 are respectively located at the end points of the long sides of the inner frame 31 opposite to each other, and the second force arm 34 is arranged above the first force arm 33, and the first force arm 33 and the second force arm 34 can support the track body 36 in a trapezoidal shape by limiting the positions of the first force arm 33 and the second force arm 34, so that the moving capability of the present invention is improved.

As shown in fig. 1-2, the length of the housing 11 is preferably less than the distance between the ends of the two second force arms 34 away from each other, and the height of the upper panel of the housing 11 is greater than the height of the top of the driven wheel 35 on the second force arm 34, which is designed to adjust the center of gravity of the present invention.

Example 2

As shown in fig. 1, 2, 4 and 5, the present invention provides a technical solution based on embodiment 1: an inner embedded groove 14 is concavely arranged in the shell 11 corresponding to the upper parts of the detection control module 12 and the power module 13, a carrier plate 15 is rotatably connected in the inner embedded groove 14, a transmission connecting rod 16 is rotatably connected to the lower side surface of one side of the carrier plate 15 far away from the rotation of the carrier plate, a lead screw sliding block 17 is rotatably connected to one end of the transmission connecting rod 16 far away from the carrier plate 15, a first lead screw unit 18 is in threaded connection with the lead screw sliding block 17, the first lead screw unit 18 penetrates through the inner wall of the shell 11 corresponding to the inner embedded groove 14, the rod body part of the first lead screw unit 18 is arranged in the inner embedded, and one end of the rod body part of the first screw rod unit 18, which is far away from the servo motor, is rotatably connected with the inner wall of the embedded groove 14, a high-definition camera 19 is embedded in the middle of one side of the upper side panel of the support plate 15, which is close to the transmission connecting rod 16, and an LED lamp panel group 110 is embedded in the support plate 15, which corresponds to one side of the high-definition camera 19, which is close to the rotation of the support plate 15.

In the embodiment, the carrier plate 15 is turned over by the transmission between the designed first screw rod unit 18 and the carrier plate 15, so as to adjust the view of the high-definition camera 19 on the carrier plate 15.

Example 3

As shown in fig. 1-3, on the basis of embodiment 1, the present invention provides a technical solution: preferably, the shaft end of the in-wheel motor 51 is fixedly mounted on the motor carrier 52, the motor carrier 52 is slidably connected with two parallel limit rods 53, the motor carrier 52 between the two limit rods 53 is rotatably connected with a second lead screw unit 55, the second lead screw unit 55 is fixedly mounted on the rail frame 54, a rail groove 56 penetrates through the rail frame 54, the shaft end of the in-wheel motor 51 penetrates through the rail groove 56, and the rail frame 54 is vertically and fixedly welded on the upper side edge of the inner frame 31.

In this embodiment, the second screw machine set 55 drives the hub motor 51 to move in the vertical direction through transmission between the second screw machine set 55 and the hub motor 51, so as to complete tightness adjustment of the track body 36.

Example 4

As shown in fig. 1, on the basis of embodiment 1, the present invention provides a technical solution: the bolt is fixedly connected with a transparent protective shell 6 on the upper side panel of the shell 11 corresponding to one side of the embedded groove 14, the transparent protective shell 6 is an arc-shaped plate, the central axis of the transparent protective shell 6 coincides with the rotation center of the support plate 15, the diameter of the transparent protective shell 6 is larger than the length of the support plate 15, the included angle between the two side edges of the transparent protective shell 6 and the central axis is a quarter circle, and the length of the transparent protective shell 6 is larger than the wide end of the support plate 15.

In the present embodiment, the carrier plate 15 is protected by the designed transparent protective shell 6, and the size of the protective shell covers the movement track of the carrier plate 15, so that the carrier plate 15 can resist falling rocks from the top of the tunnel roof.

The operation principle of the digital safety detection device will be described in detail below.

As shown in fig. 1-6, when the invention is used, firstly, a user sets a detection range in advance, and then the invention is controlled to enter a coal mine dangerous tunnel through external remote control, in the process, the user can control a switch of a first lead screw unit 18 to lift a carrier plate 15, and can also control switches of an LED lamp panel group 110 and a high-definition camera 19, so as to perform illumination and road identification, and simultaneously perform image sampling on the inside of the tunnel, and simultaneously, in the advancing process, the user can also adjust the height of a hub motor 51 by controlling a servo motor switch of a second lead screw unit 55 according to different road conditions, so as to adjust the tightness of a track body 36, and further complete the adjustment of the contact area between the track body 36 and the ground;

as shown in fig. 1-6, in the traveling process of the present invention, the in-wheel motor 51 drives the guide wheel 41 and the driven wheel 35 to rotate through the track body 36, and the driven wheel 35 and the guide wheel 41 are used for fixing the shape of the track body 36, so that when the in-wheel motor 51 operates, the track body 36 rotates along with the track body, thereby achieving the traveling purpose; in the process of adjusting the tightness of the track body 36, the second lead screw set 55 operates to drive the motor carrier 52 to move vertically, so as to change the vertical position of the hub motor 51 on the motor carrier 52, so that the hub motor 51 drives the track body 36 thereon to move upwards, and since the length of the track body 36 is fixed, the track body 36 generates thrust on the guide wheel 41 and pressure on the driven wheel 35, at the same time, the buffer 43 connected with the guide wheel 41 can buffer the deformation of the track body 36 in the process, and the strong torsion spring hinge 32 can generate a reverse acting force on the displacement of the second force arm 34 while buffering the deformation of the track body 36, so that the driven wheel 35 can be pressed on the inner wall of the track body 36 more and more firmly along with the deformation of the track body 36, so as to tension the track body 36, when the crawler belt body 36 is loosened, the operation can be completed only by reversely starting the servo motor of the second screw rod unit 55; when the carrier plate 15 where the high definition camera 19 is located is adjusted, the first screw rod unit 18 operates to drive the screw rod slider 17 in transmission connection with the first screw rod unit to generate displacement, and the connection point of the transmission connecting rod 16 and the carrier plate 15 is always located on the same arc-shaped track, so that the transmission connecting rod 16 is pushed by the screw rod slider 17 to stand up, and the screw rod slider 17 pushes up one side edge of the carrier plate 15 due to the rotary connection between the carrier plate 15 and the inner wall of the inner caulking groove 14, thereby realizing the adjustment of the carrier plate 15.

The present invention has been described in general terms in the foregoing, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto based on the present invention. Therefore, modifications or improvements are within the scope of the invention without departing from the spirit of the inventive concept.

Claims

1. The utility model provides a digital safety inspection device, includes detection mechanism (1), detection mechanism (1) includes shell (11), detects control module group (12) and power module (13), the inside fixed mounting of shell (11) has detection control module group (12), the inside fixed mounting of shell (11) one side of detection control module group (12) has power module group (13), its characterized in that: lower protective housing (112) are connected through buffer spring (111) on the lower panel of shell (11) and the relative both sides face, bolt fixedly connected with link (2) on shell (11), link (2) are including mount (23), the quantity of mount (23) is two, and two mount (23) bolt fixed mounting respectively is on shell (11) keep away from both sides board of end protective housing (112), two mount (23) all are connected with filter bag mechanism (3), filter bag mechanism (3) are including inner frame (31), fixed connection between the side of shell (11) is kept away from in inner frame (31) and mount (23), four of inner frame (31) rotate respectively through powerful torsional spring hinge (32) and are connected with No. two arm of force (33) and No. two arm of force (34), every all on one end of keeping away from powerful torsional spring hinge (32) with No. two arm of force (33) all are served It is connected with from driving wheel (35), four to rotate No. two arm of force (34) equal transmission is connected on the inboard of track body (36), transmission connection has guiding mechanism (4) and power adjustment mechanism (5) on track body (36), guiding mechanism (4) are two sets of, and are two sets of guiding mechanism (4) symmetry sets up the both sides in power adjustment mechanism (5), guiding mechanism (4) include leading wheel (41), the transmission is connected between the lateral surface of leading wheel (41) and track body (36), power adjustment mechanism (5) include in-wheel motor (51), the transmission is connected between the inboard of track body (36) between in-wheel motor (51) and two leading wheels (41).

2. A digital security detection device according to claim 1, wherein: the corresponding shell (11) above the detection control module (12) and the power module (13) is provided with an embedded groove (14) in a concave way, a support plate (15) is rotationally connected in the inner embedded groove (14), a transmission connecting rod (16) is rotationally connected on the lower side surface of one side of the support plate (15) far away from the rotation, one end of the transmission connecting rod (16) far away from the carrier plate (15) is rotationally connected with a screw rod sliding block (17), the screw rod sliding block (17) is in threaded connection with a first screw rod unit (18), the first screw rod unit (18) penetrates through the inner wall of the shell (11) corresponding to the inner caulking groove (14), a high-definition camera (19) is embedded in the middle of one side of the upper side panel of the carrier plate (15) close to the transmission connecting rod (16), high definition digtal camera (19) are close to and are gone up embedded LED lamp plate group (110) of installing on support plate (15) that support plate (15) pivoted one side corresponds.

3. A digital security detection device according to claim 1, wherein: axle head department fixed mounting of in-wheel motor (51) carries on seat (52) at the motor, sliding connection has two gag lever post (53) that are parallel to each other on motor carries seat (52), two motor between gag lever post (53) carries seat (52) to go up the transmission and is connected with No. two lead screw units (55), No. two lead screw units (55) fixed mounting are on rail frame (54), it has rail groove (56) to run through the chisel on rail frame (54), the axle head of in-wheel motor (51) runs through rail groove (56) and sets up, the side of going up of rail frame (54) vertical fixation welding in inner tower (31).

4. A digital security detection device according to claim 1, wherein: the axle head of leading wheel (41) rotates to be connected on axle support plate (42), fixed welding has buffer (43) on axle support plate (42), buffer (43) vertical fixation welds the side of going up of inner tower (31).

5. A digital security detection device according to claim 1, wherein: two adjacent setting between arm of force (33), and two arm of force (33) are located the relative both sides long limit termination point department of inner tower (31) respectively, No. two arm of force (34) set up the top at arm of force (33).

6. A digital security detection device according to claim 1, wherein: two mount (23) vertical fixation welding respectively is on carrier plate (21) both sides relatively, be equipped with spring perforation (22) on carrier plate (21), buffer spring (111) one-to-one runs through the setting in spring perforation (22), carrier plate (21) bolt fixed mounting is on the lower panel of shell (11).

7. A digital security detection device according to claim 2, wherein: bolt fixedly connected with transparent protecting crust (6) on shell (11) that interior caulking groove (14) one side corresponds, transparent protecting crust (6) are the arc, the central axis of a circle of transparent protecting crust (6) coincides with the center of rotation of support plate (15), the diameter of transparent protecting crust (6) is greater than the length of support plate (15), the both sides limit and the central axis contained angle of transparent protecting crust (6) are the quarter circle, the length of transparent protecting crust (6) is greater than the wide end of support plate (15).

8. A digital security detection device according to claim 1, wherein: the length of the shell (11) is smaller than the distance between the ends, far away from each other, of the two second force arms (34), and the height of the upper side panel of the shell (11) is larger than the height of the top point of the driven wheel (35) on the second force arm (34).

9. A digital security detection device according to claim 2, wherein: the rod body part of the first screw rod unit (18) is arranged inside the inner embedded groove (14), and one end, far away from the servo motor, of the rod body part of the first screw rod unit (18) is rotatably connected with the inner wall of the inner embedded groove (14).

10. A digital security detection device according to claim 3, wherein: the rod body part of the second screw rod unit (55) is arranged on one side, away from the hub motor (51), of the rail frame (54), and one end, away from the servo motor, of the rod body part of the second screw rod unit (55) is rotatably connected with the lower end of the rail frame (54).