Track detection device for railway engineering

Abstract

A rail detection device for railway engineering relates to the field of rail detection devices. The track detection device is mainly designed for solving the problem that a mark sprayed by an existing track detection device for railway engineering is easy to disappear or fade. The device comprises a main body, a front wheel and a rear wheel are arranged on the main body, two cleaning mechanisms and a pigment spraying mechanism are symmetrically arranged on the main body, worms of the cleaning mechanisms are connected to shafts of the front wheel, a vertical shaft is installed on the main body, a worm wheel and a gear are fixed to the vertical shaft, and the worm wheel is meshed with the worm; a support plate is fixed at the top of the main body, a cleaning plate is fixed at the outer end of a sliding plate, a baffle is arranged at the inner end of the sliding plate after the sliding plate passes through an opening of the support plate, a spring is arranged between the support plate and the baffle, racks on the cleaning plate are intermittently meshed, and the cleaning plate is provided with a cleaning brush. The pigment spraying mechanism comprises a detection wheel, a sliding plate, a mounting piece, a sliding column, a marking barrel and the like. The top of the connecting pipe is connected with the outer end of the pigment barrel through a hose. The utility model has the advantage that the pigment is not easily sprayed on the accumulated dust.

Description

Technical field:

[0001] The utility model relates to the field of track detection devices, in particular to a track detection device for railway engineering. Background technology:

[0002] After the railway tracks are put into use, in order to ensure the safety of passing vehicles, the quality of the tracks needs to be inspected regularly to avoid accidents caused by vehicle damage due to failure to discover track damage in time. The inspection of railway tracks requires the use of detection equipment.

[0003] The existing track detection devices used in railway engineering need to spray paint on the track to mark the position after detecting the deformation of the track for subsequent maintenance. However, since the track is usually outdoors, there may be some dust on the track before spraying. After the paint is sprayed on the dust, the paint can easily disappear or fade due to the influence of the dust, making it difficult for subsequent maintenance personnel to find the deformed position of the track, delaying maintenance and there is a risk of missed maintenance. Summary of the invention:

[0004] The technical problem to be solved by the utility model is to provide a track detection device for railway engineering, so as to solve the problem that since the track is usually outdoors, some dust may exist on the track before spraying, and after the paint is sprayed on the dust, the paint is easily affected by the dust and disappears or fades, making it inconvenient for later maintenance personnel to find the deformed position of the track, delaying maintenance and there is a risk of missing maintenance.

[0005] The purpose of the utility model is achieved in that it comprises a main body, two front wheels are respectively mounted on the left and right sides of the front end of the main body through shafts, and two rear wheels are mounted on the left and right sides of the rear end of the main body through rear wheel shafts.

[0006] Two cleaning mechanisms and two paint spraying mechanisms with the same structure are symmetrically arranged on the main body, one of which is arranged on the left side of the main body, and the other is arranged on the right side of the main body; the cleaning mechanism is in front of the paint spraying mechanism.

[0007] The cleaning mechanism includes a worm, which is connected to the inner end of the shaft of the front wheel. The rotation of the front wheel can drive the worm to rotate. A vertical shaft is installed on the main body, and a worm wheel and a gear A are fixed on the vertical shaft. The gear A is an incomplete gear, and the worm wheel and the worm are meshed;

[0008] A carrier plate is fixed to the top of the main body behind the worm gear, and two front and rear rectangular openings are provided on the carrier plate. A cleaning plate is fixed to the outer end of the rectangular slide plate A. The slide plate A passes through the rectangular opening on the front side of the carrier plate, and a rectangular baffle A extending upward is fixed to the rear inner end. A spring A is provided between the carrier plate and the baffle A, and the two ends of the spring A are respectively embedded in the baffle A and the carrier plate; a rack A is fixed to the side of the cleaning plate facing the gear A, and the gear A and the rack A are intermittently meshed, and a cleaning brush is provided on the downward surface of the cleaning plate.

[0009] The paint spraying mechanism includes a detection wheel, which is located behind the cleaning plate and connected to the top of the outer end of the skateboard B. The skateboard B passes through the rectangular opening on the rear side of the carrier plate and is fixed with a rectangular baffle B extending upward at the rear inner end. A spring B is provided between the carrier plate and the baffle B, and the two ends of the spring B are respectively embedded in the baffle B and the carrier plate; a trigger block is fixed to the top of the baffle B, and the inner and outer side surfaces of the trigger block are both inclined slopes.

[0010] It also includes a mounting part, which is fixed on the top of the carrier plate. The upper part of the mounting part is an annular paint tube mounting frame. The lower part of the mounting part is provided with a vertical slide groove. A slider is installed in the vertical slide groove. A spring C is provided between the slider and the upper end of the vertical slide groove, that is, the two ends of the spring C are respectively embedded in the top of the slider and the top of the vertical slide groove.

[0011] A force block A is fixed at the inner end of the slider, and the force block A is provided with a downward opening. The lower part of the inner side surface of the force block A on the left side of the opening gradually tilts to the left from top to bottom, and the lower part of the inner side surface of the force block A on the right side of the opening gradually tilts to the right from top to bottom; the two inclined surfaces at the opening of the force block A are in contact with the two side surfaces of the trigger block.

[0012] A push block is fixed on the top of the force-bearing block A, and the upper part of the outward side of the push block gradually tilts outward from bottom to top to form an inclined surface; an L-shaped connecting rod is connected to the rear side of the force-bearing block A, and a rack B is fixed on the outer end of the connecting rod;

[0013] A mounting body is fixed on the top rear side of the main body, gear B is rotatably connected to the top of the mounting body, gear B is meshed with rack B; a mounting sleeve is fixedly connected to the outer end of the mounting body, a slide column is slidably arranged in the mounting sleeve, a rack C is fixed on the side of the slide column facing gear B, rack C is meshed with gear B, that is, rack B and rack C are respectively located on both sides of gear B, a connecting pipe is fixed inside the slide column, and the top of the connecting pipe is connected to the outer end of the paint tube through a hose.

[0014] The bottom of the connecting pipe is connected to a marking tube, and an immersion hole is opened at the bottom of the marking tube; one end of a spring D is embedded in the top of the marking tube, and the other end of the spring D is embedded in the bottom of the sliding column; a marking sleeve is sleeved on the outside of the marking tube, and a row of immersion holes is provided on the marking sleeve.

[0015] The paint cartridge is installed in the paint cartridge mounting frame of the mounting part, and a push plate is arranged in the paint cartridge, and the push plate is in sliding contact with the inner wall of the paint cartridge, and a mounting plate is fixed to the inner end of the paint cartridge, and a spring E is arranged between the push plate and the mounting plate, that is, the two ends of the spring E are respectively embedded in the mounting plate and the push plate; a force block B is fixed to the side of the push plate facing the mounting plate, and the inner side surface of the force block B (the side facing the mounting plate) gradually tilts outward from top to bottom to form an inclined surface; the push block extends into the paint cartridge and the inclined surface of the force block B contacts the inclined surface of the push block.

[0016] It also includes a stirring shaft, both ends of which are respectively connected to the paint barrels of the two paint spraying mechanisms, that is, the two ends of the stirring shaft respectively pass through the mounting plates and push plates on the paint barrels of the two paint spraying mechanisms and extend into the paint barrels, the stirring shaft is rotatably connected to the mounting plate and the push plate, and a stirring blade is fixed on the stirring shaft located in the paint barrel; a first synchronous wheel is fixed to the middle of the stirring shaft between the two paint barrels, a second synchronous wheel is fixed to the rear wheel shaft, and the first synchronous wheel and the second synchronous wheel are connected by a synchronous belt.

[0017] Ball bearings may also be arranged on the contact surface between the slider and the vertical slide groove, and the arrangement of the ball bearings enables the slider to slide more smoothly along the slide groove.

[0018] The advantages of the utility model are:

[0019] 1. When the track used in railway engineering is deformed, resulting in an error in the track spacing, the detection wheel will drive the slide plate B to start sliding following the deformation law of the track under the action of the spring B. During the sliding process, the slide plate B will drive the trigger block to move, and use the inclined surface of the trigger block to push the inclined surface of the force block A, so that the force block A is pushed by the inclined surface to drive the connecting rod and rack B to move upward. During the movement, rack B will drive rack C, sliding column, connecting pipe and marking tube to descend under the action of gear B, so that the marking tube drives the marking sleeve to descend and contact the top of the track, so that the marking sleeve will coat the paint soaked in itself on the track to mark the track, so that the later maintenance personnel can know that the track has a spacing deformation error here.

[0020] 2. When the force block A moves upward, the force block A will drive the pushing block to rise, so that the inclined surface of the pushing block pushes the inclined surface of the force block B, so that the force block B is affected by the inclined surface and drives the push plate to move outward, so that the push plate squeezes the paint inside the paint tube outward, and can automatically replenish the paint when a track error is detected, so that the paint can be fully coated on the position of the track that needs to be inspected.

[0021] 3. When moving along the track for inspection, the front wheel will drive the worm to rotate, which in turn drives the vertical shaft and gear A to rotate under the action of the worm wheel. Gear A uses its own characteristics as an incomplete gear to cooperate with rack A to drive the cleaning plate and cleaning brush to move, thereby cooperating with spring A to allow the cleaning plate and cleaning brush to slide back and forth left and right, so that the cleaning brush can clean up impurities such as dust on the track in advance. When spraying paint markings, it is not easy to spray paint on dust, and the paint will not disappear or fade from the track due to the influence of dust. The disappearance or fading of the paint will not cause the maintenance personnel to be unable to find the location to be repaired, and it is not easy to miss maintenance.

[0022] 4. When moving along the track for inspection, the rear wheel rotates through the second synchronous wheel and the synchronous belt to drive the first synchronous wheel and the stirring shaft to rotate, so that the stirring shaft drives the stirring blades to rotate, so that the stirring blades stir the pigment inside the pigment tube to avoid precipitation or agglomeration of the pigment inside the pigment tube, and to prevent the precipitation or agglomeration of the pigment from affecting the spraying mark, thereby causing unnecessary trouble to the inspection mark work. Description of the drawings:

[0023] Figure 1 It is a structural schematic diagram of the utility model;

[0024] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0025] Figure 3 It is a schematic diagram of the connection state between the cleaning plate and the worm gear in the cleaning mechanism of the utility model;

[0026] Figure 4 It is a structural schematic diagram of the paint spraying mechanism in the utility model;

[0027] Figure 5 It is a structural schematic diagram of the utility model in which the paint cartridge is in a half-section state;

[0028] Figure 6 yes Figure 5 A schematic diagram of the enlarged structure at B in the middle;

[0029] Figure 7 yes Figure 5 Schematic diagram of the enlarged structure at C in the middle;

[0030] Figure 8 This is a schematic diagram of the structure of the utility model when the paint cartridge is not installed;

[0031] Fig. 9 yes Figure 8 Schematic diagram of the enlarged structure at D in the middle;

[0032] Fig.10 It is a schematic diagram of the structure of the utility model when viewed from above;

[0033] Fig.11 It is a structural schematic diagram of the utility model from another angle. Specific implementation method:

[0034] Combine the following Figure 1-11 Further explain the utility model;

[0035] It comprises a main body 1, two front wheels 1-1 are respectively installed on the left and right sides of the front end of the main body through shafts, and two rear wheels 1-2 are installed on the left and right sides of the rear end of the main body through rear wheel shafts 1-3.

[0036] Two cleaning mechanisms 2 and two paint spraying mechanisms 3 with the same structure are symmetrically arranged on the main body, one of which is arranged on the left side of the main body, and the other is arranged on the right side of the main body; the cleaning mechanism is in front of the paint spraying mechanism.

[0037] The cleaning mechanism 2 includes a worm 2-1, which is connected to the inner end of the shaft of the front wheel. The rotation of the front wheel can drive the worm to rotate. A vertical shaft 2-2 is installed on the main body, and a worm wheel 2-3 and a gear A2-4 are fixed on the vertical shaft. The gear A is an incomplete gear, and the worm wheel and the worm are meshed.

[0038] A carrier plate 2-5 is fixed to the top of the main body 1 behind the worm gear, and two front and rear rectangular openings are provided on the carrier plate. A cleaning plate 2-7 is fixed to the outer end of the rectangular skateboard A2-6. The skateboard A passes through the rectangular opening on the front side of the carrier plate, and a rectangular baffle A2-8 extending upward is fixed to the rear inner end. A spring A2-9 is provided between the carrier plate and the baffle A, and the two ends of the spring A are respectively embedded in the baffle A and the carrier plate; a rack A2-10 is fixed to the side of the cleaning plate facing the gear A, and the gear A and the rack A are intermittently meshed, and a cleaning brush 2-11 is provided on the downward surface of the cleaning plate.

[0039] When the device moves along the track for detection, the front wheel will drive the worm to rotate, which in turn drives the vertical shaft and gear A to rotate under the action of the worm wheel, so that gear A, by utilizing its own characteristics as an incomplete gear, cooperates with rack A to drive the cleaning plate and the cleaning brush to move. With the cooperation of spring A, the cleaning plate and the cleaning brush can slide back and forth left and right, so that the cleaning brush can clean up impurities such as dust on the track in advance.

[0040] The paint spraying mechanism 3 includes a detection wheel 3-1, which is located behind the cleaning plate and connected to the top of the outer end of the slide plate B3-2. The slide plate B passes through the rectangular opening on the rear side of the carrier plate and is fixed with a rectangular baffle B3-3 extending upward at the rear inner end. A spring B3-4 is provided between the carrier plate and the baffle B, and the two ends of the spring B are respectively embedded in the baffle B and the carrier plate; a trigger block 3-5 is fixed on the top of the baffle B, and the inner and outer side surfaces of the trigger block are inclined slopes;

[0041] It also includes a mounting member 3-6, which is fixed on the top of the carrier plate. The upper part of the mounting member is an annular paint tube mounting frame. The lower part of the mounting member is provided with a vertical slide groove 3-7. A slider 3-8 is installed in the vertical slide groove. A spring C3-9 is provided between the slider and the upper end of the vertical slide groove, that is, the two ends of the spring C are respectively embedded in the top of the slider and the top of the vertical slide groove;

[0042] A force block A3-10 is fixed at the inner end of the slider. The force block A is provided with a downward opening. The lower part of the inner side surface of the force block A on the left side of the opening gradually tilts to the left from top to bottom, and the lower part of the inner side surface of the force block A on the right side of the opening gradually tilts to the right from top to bottom; the two inclined surfaces at the opening of the force block A are in contact with the two side surfaces of the trigger block.

[0043] A push block 3-11 is fixed on the top of the force-bearing block A, and the upper part of the outward side of the push block gradually tilts outward from bottom to top to form an inclined surface; an L-shaped connecting rod 3-12 is connected to the rear side of the force-bearing block A, and a rack B3-13 is fixed to the outer end of the connecting rod;

[0044] A mounting body 3-14 is fixed on the top rear side of the main body 1, and a gear B3-15 is rotatably connected to the top of the mounting body, and gear B is meshed with rack B; a mounting sleeve 3-17 is fixedly connected to the outer end of the mounting body, and a slide column 3-18 is slidably arranged in the mounting sleeve, and a rack C3-19 is fixed on the side of the slide column facing gear B, and rack C is meshed with gear B, that is, rack B and rack C are respectively located on both sides of gear B, and a connecting pipe 3-20 is fixed inside the slide column, and the top of the connecting pipe is connected to the outer end of the paint tube 4 through a hose 3-21.

[0045] The bottom of the connecting pipe is connected to a marking tube 3-22, and an immersion hole is provided at the bottom of the marking tube; one end of a spring D3-23 is embedded in the top of the marking tube, and the other end of the spring D is embedded in the bottom of the sliding column 3-18; a marking sleeve 3-16 is sleeved on the outside of the marking tube, and a row of immersion holes is provided on the marking sleeve.

[0046] The paint cartridge 4 is installed in the paint cartridge mounting frame of the mounting member 3-6, and a push plate 4-1 is arranged in the paint cartridge, and the push plate is in sliding contact with the inner wall of the paint cartridge, and a mounting plate 4-2 is fixed to the inner end of the paint cartridge, and a spring E4-3 is arranged between the push plate and the mounting plate, that is, the two ends of the spring E are respectively embedded in the mounting plate 4-2 and the push plate 4-1; a force block B4-4 is fixed to the side of the push plate facing the mounting plate, and the inner side surface of the force block B (the side facing the mounting plate) gradually tilts outward from top to bottom to form an inclined surface; the push block 3-11 extends into the paint cartridge and the inclined surface of the force block B contacts the inclined surface of the push block 3-11.

[0047] When the force block A moves upward, the force block A will drive the pushing block 3-11 to rise, so that the inclined surface of the pushing block pushes the inclined surface of the force block B, so that the force block B is affected by the inclined surface and drives the push plate 4-1 to move outward, so that the push plate squeezes the paint inside the paint tube outward and replenishes the paint into the marking tube, so as to mark the paint on the track.

[0048] It also includes a stirring shaft 4-5, both ends of which are respectively connected to the paint barrels of the two paint spraying mechanisms, that is, the two ends of the stirring shaft respectively extend into the paint barrel from the mounting plates and push plates on the paint barrels of the two paint spraying mechanisms, the stirring shaft is rotatably connected to the mounting plates and push plates, and stirring blades 4-6 are fixed on the stirring shaft in the paint barrel; a first synchronous wheel 5 is fixed to the middle of the stirring shaft between the two paint barrels, a second synchronous wheel 6 is fixed to the rear wheel shaft, and the first synchronous wheel and the second synchronous wheel are connected by a synchronous belt; when moving along the track for detection, the rear wheel will drive the rear shaft and the second synchronous wheel to rotate, and under the action of the synchronous belt, the first synchronous wheel and the stirring shaft are driven to rotate, so that the stirring shaft drives the stirring blades to rotate, so that the stirring blades stir the paint inside the paint barrel to avoid the paint inside the paint barrel from settling or agglomerating.

[0049] Ball bearings may also be provided on the contact surface of the slider 3-8 and the vertical slide groove 3-7, and the provision of the ball bearings enables the slider to slide more smoothly along the slide groove.

[0050] When the track used in railway engineering is deformed and the track spacing is incorrect, the detection wheel 3-1 will drive the slide plate B3-2 to start sliding following the deformation law of the track under the action of the spring B3-4. During the sliding process, the slide plate B will drive the trigger block 3-5 to move, and use the inclined surface of the trigger block to push the inclined surface of the force block A3-10, so that the force block A3-10 is pushed by the inclined surface and drives the connecting rod 3-12 and the rack B3-13 to move upward. During the movement, the rack B will drive the rack C3-19, the slide column 3-18, the connecting pipe 3-20 and the marking tube 3-22 to descend under the action of the gear B3-15, so that the marking tube drives the marking sleeve 3-16 to descend and contact the top of the track, marking the paint on the track position that needs to be inspected. When the force block A moves upward, the force block A will drive the pushing block 3-11 to rise, so that the inclined surface of the pushing block pushes the inclined surface of the force block B4-4, so that the force block B is affected by the inclined surface and drives the push plate 4-1 to move outward, so that the push plate squeezes the paint inside the paint tube outward and replenishes the paint into the marking tube.

[0051] Specific usage: When using, first place the front and rear wheels on the track, then push the main body so that it starts to move along the railway track under the action of the front and rear wheels. During the mobile detection process, the front wheel will drive the worm to rotate, so that under the action of the worm wheel, it drives the vertical shaft and gear A to rotate, so that the gear uses its own characteristics as an incomplete gear to cooperate with the rack A to drive the cleaning plate and the cleaning brush to move, thereby cooperating with the spring A to make the cleaning plate and the cleaning brush slide back and forth left and right, so that the cleaning parts can clean up the dust and other impurities on the track in advance. When the track used for railway engineering is deformed, resulting in an error in the track spacing, the detection wheel will drive the skateboard B to follow the deformation law of the track under the action of the spring B. Start sliding. During the sliding process, the slide plate B will drive the trigger block to move, and use the inclined surface of the trigger block to push the inclined surface of the force-bearing block A, so that the force-bearing block A is pushed by the inclined surface to drive the connecting rod and rack B to move upward. During the movement, rack B will drive rack C, sliding column, connecting pipe and marking cylinder to descend under the action of gear B, so that the marking cylinder drives the marking sleeve to descend and contact the top of the track, marking the pigment at the track position that needs to be inspected. At the same time, the rear wheel will drive the rear axle and the second synchronous wheel to rotate, and drive the first synchronous wheel and the stirring shaft to rotate under the action of the synchronous belt, so that the stirring shaft drives the stirring blades to rotate, so that the stirring blades stir the pigment inside the pigment tube to avoid precipitation or agglomeration of the pigment inside the pigment tube.

[0052] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A track detection device for railway engineering, comprising a main body (1), two front wheels (1-1) respectively mounted on the left and right sides of the front end of the main body through shafts, and two rear wheels (1-2) mounted on the left and right sides of the rear end of the main body through rear wheel shafts (1-3); wherein: Two cleaning mechanisms (2) and two paint spraying mechanisms (3) with the same structure are symmetrically arranged on the main body, one of the cleaning mechanisms and the paint spraying mechanism is arranged on the left side of the main body, and the other cleaning mechanism and the paint spraying mechanism is arranged on the right side of the main body; the cleaning mechanism is arranged in front of the paint spraying mechanism; The cleaning mechanism (2) comprises a worm (2-1), which is connected to the inner end of the shaft of the front wheel. A vertical shaft (2-2) is installed on the main body, and a worm wheel (2-3) and a gear A (2-4) are fixed on the vertical shaft. The gear A is an incomplete gear, and the worm wheel and the worm are meshed. A carrier plate (2-5) is fixed on the top of the main body (1) behind the worm gear, and two front and rear rectangular openings are provided on the carrier plate. A cleaning plate (2-7) is fixed on the outer end of a rectangular slide plate A (2-6). The slide plate A passes through the rectangular opening on the front side of the carrier plate and is fixed on the inner end thereof with a rectangular baffle plate A (2-8) extending upward. A spring A (2-9) is provided between the carrier plate and the baffle plate A, and the two ends of the spring A are respectively embedded in the baffle plate A and the carrier plate; a rack A (2-10) is fixed on the side of the cleaning plate facing the gear A, and the gear A and the rack A are intermittently meshed, and a cleaning brush (2-11) is provided on the downward side of the cleaning plate; The paint spraying mechanism (3) comprises a detection wheel (3-1), which is located behind the cleaning plate and connected to the top of the outer end of a slide plate B (3-2). The slide plate B passes through a rectangular opening located on the rear side of a carrier plate and is fixed with a rectangular baffle plate B (3-3) extending upward at the rear inner end. A spring B (3-4) is provided between the carrier plate and the baffle plate B, and the two ends of the spring B are respectively embedded in the baffle plate B and the carrier plate; a trigger block (3-5) is fixed to the top of the baffle plate B, and the inner and outer side surfaces of the trigger block are both inclined slopes; It also includes a mounting member (3-6), which is fixed on the top of the carrier plate, the upper part of the mounting member is an annular paint tube mounting frame, the lower part of the mounting member is provided with a vertical slide groove (3-7), a slider (3-8) is installed in the vertical slide groove, and a spring C (3-9) is provided between the slider and the upper end of the vertical slide groove, that is, the two ends of the spring C are respectively embedded in the top of the slider and the top of the vertical slide groove; A force-bearing block A (3-10) is fixed to the inner end of the slider. The force-bearing block A is provided with an opening facing downward. The lower part of the inner side surface of the force-bearing block A on the left side of the opening gradually tilts to the left from top to bottom, and the lower part of the inner side surface of the force-bearing block A on the right side of the opening gradually tilts to the right from top to bottom; two inclined surfaces at the opening of the force-bearing block A are in contact with two side surfaces of the trigger block; A push block (3-11) is fixed on the top of the force-bearing block A, and the upper part of the outward side of the push block gradually tilts outward from bottom to top to form an inclined surface; an L-shaped connecting rod (3-12) is connected to the rear side of the force-bearing block A, and a rack B (3-13) is fixed on the outer end of the connecting rod; A mounting body (3-14) is fixed to the rear side of the top of the main body (1), a gear B (3-15) is rotatably connected to the top of the mounting body, and the gear B is meshed with a rack B; a mounting sleeve (3-17) is fixedly connected to the outer end of the mounting body, a slide column (3-18) is slidably arranged in the mounting sleeve, a rack C (3-19) is fixed to the side of the slide column facing the gear B, and the rack C is meshed with the gear B, that is, the rack B and the rack C are respectively located on both sides of the gear B, and a connecting pipe (3-20) is fixed inside the slide column, and the top of the connecting pipe is connected to the outer end of the paint cylinder (4) through a hose (3-21); The bottom of the connecting pipe is connected to a marking tube (3-22), and a soaking hole is provided at the bottom of the marking tube; one end of a spring D (3-23) is embedded in the top of the marking tube, and the other end of the spring D is embedded in the bottom of the sliding column (3-18); The paint cartridge (4) is mounted in a paint cartridge mounting frame of a mounting member (3-6). A push plate (4-1) is arranged in the paint cartridge, the push plate and the inner wall of the paint cartridge are in sliding contact, a mounting plate (4-2) is fixed at the inner end of the paint cartridge, a spring E (4-3) is arranged between the push plate and the mounting plate, that is, the two ends of the spring E are respectively embedded in the mounting plate (4-2) and the push plate (4-1); a force block B (4-4) is fixed on one side of the push plate facing the mounting plate, the inner side surface of the force block B gradually tilts outward from top to bottom to form an inclined surface; the push block (3-11) extends into the paint cartridge, and the inclined surface of the force block B contacts the inclined surface of the push block (3-11).

2. The railroad engineering track detection device according to claim 1, characterized in that: The outer surface of the marking cylinder is covered with a marking sleeve (3-16), and a row of immersion holes is arranged on the marking sleeve.

3. The railroad engineering track detection device according to claim 1 or 2, characterized in that: The invention also comprises a stirring shaft (4-5), the two ends of which are respectively connected to the pigment barrels of the two pigment spraying mechanisms, that is, the two ends of the stirring shaft respectively extend from the mounting plates and the push plates on the pigment barrels of the two pigment spraying mechanisms to the pigment barrels, the stirring shaft is rotatably connected to the mounting plates and the push plates, and a stirring blade (4-6) is fixed on the stirring shaft located in the pigment barrel; a first synchronous wheel (5) is fixed on the middle part of the stirring shaft between the two pigment barrels, a second synchronous wheel (6) is fixed on the rear wheel shaft, and the first synchronous wheel and the second synchronous wheel are connected via a synchronous belt.

4. The railroad engineering track detection device according to claim 1 or 2, characterized in that: A ball bearing is arranged on the surface where the slider (3-8) contacts the vertical slide groove (3-7).

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