A device and method for assisting in marking intervals between pillows

Abstract

The application discloses a kind of auxiliary pillow replacement interval marking equipment and marking method, the equipment includes driving mechanism and driven mechanism, the driving mechanism and driven mechanism are detachably connected by connecting frame;The driving mechanism includes driving frame, controller, power supply, sensor, driving motor and paint spraying assembly are installed on driving frame, the power supply is powered for driving motor, sensor and controller, driving motor, sensor and paint spraying assembly are electrically connected with controller, vertical rail clamp wheel and horizontal wheel are installed on the bottom of driving frame, horizontal wheel is driven by driving motor;The driven mechanism includes driven frame, paint spraying assembly is installed on driven frame, and the paint spraying assembly is electrically connected with controller, horizontal wheel is installed on the bottom of driven frame.The application realizes the automatic marking of two rails, and the interval between the 4 markings is on the same straight line, the interval precision is high, which is beneficial to reduce the labor intensity of workers, and greatly improves work efficiency.

Description

Technical Field

[0001] This invention belongs to the field of mechanical equipment technology, and in particular relates to an auxiliary pillow changing interval marking device and marking method. Background Technology

[0002] After prolonged use, railway sleepers between two rails need to be replaced. During sleeper replacement, to ensure workers can accurately and evenly place the sleepers under the rails, four equidistant markings need to be made at the top and bottom of each rail. These four markings must be in a straight line, with the direction of this line being the normal to the rail curve. Traditionally, workers first make two markings on one side of the rail using a paint pen and measuring tape, and then another group of workers makes the other two markings on the opposite side using a paint pen and a right-angled square. This method requires a large amount of manpower each time, resulting in high labor intensity and occupational diseases for workers over many years. Furthermore, the accuracy of the marking spacing cannot be guaranteed.

[0003] Therefore, addressing the shortcomings of the existing technologies has become the focus of efforts for those skilled in the field. Summary of the Invention

[0004] The purpose of this invention is to provide an auxiliary pillow changing interval marking device and marking method, which can completely solve the shortcomings of the prior art.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] An auxiliary pillow changing interval marking device includes an active mechanism and a driven mechanism.

[0007] The active mechanism and the driven mechanism are detachably connected via a connecting frame;

[0008] The active mechanism includes an active frame on which a controller, a power supply, a sensor, a drive motor, and a painting assembly are mounted. The power supply provides power to the drive motor, the sensor, and the controller. The drive motor, the sensor, and the painting assembly are electrically connected to the controller. Vertical clamping wheels and horizontal wheels are mounted at the bottom of the active frame. The horizontal wheels are driven by the drive motor.

[0009] The driven mechanism includes a driven frame, on which a painting assembly is mounted, which is electrically connected to a controller, and horizontal wheels are mounted at the bottom of the driven frame.

[0010] Furthermore, the painting assembly includes a mounting bracket, a spray paint can, a solenoid valve, a base, a handle, a connecting rod, a rotating shaft, a safety cap, a nozzle, and a spray head. The base is detachably connected to the mounting bracket. One end of the connecting rod is hinged to the base, and the other end is hinged to the handle. A safety cap is movably installed inside the base, and a spray head is embedded at the bottom of the safety cap. A waist-shaped hole and a through hole corresponding to the nozzle outlet are vertically formed on the base. Both ends of the rotating shaft are hinged to the handle, and the rotating shaft passes through the waist-shaped hole and... The anti-drop cap is designed so that the central axes of the base, the anti-drop cap, and the nozzle are aligned. One end of the mounting bracket is connected to the active or passive frame, and the other end is a free end with a U-shaped socket. The top of the paint can is snapped into the U-shaped socket, and the outlet of the paint can is connected to the inlet of the nozzle. The outlet of the nozzle is connected to the inlet of the solenoid valve through a pipe, and the outlet of the solenoid valve is connected to the nozzle through a pipe. Solenoid valves and nozzles are installed on both the active and passive frames.

[0011] Furthermore, both the active frame and the driven frame are equipped with adjusting columns and nozzle connecting plates. The adjusting column has a vertical groove, in which a slider slides. The nozzle connecting plate has an elongated hole, through which a fastening screw passes and engages with the slider threadedly, thereby connecting and fixing the nozzle connecting plate to the adjusting column. A nozzle fixing plate extends from the nozzle connecting plate, and a nozzle pressure plate is detachably connected to the nozzle fixing plate. Semicircular holes are correspondingly opened on the nozzle fixing plate and the nozzle pressure plate, and the nozzle is fitted and fixed in the circular hole formed by the nozzle fixing plate and the nozzle pressure plate.

[0012] Furthermore, the anti-cap sidewall is provided with threaded holes along the circumference of the nozzle.

[0013] Furthermore, the card holder is provided with an arc-shaped positioning groove, and the bottom of the base is provided with an arc-shaped positioning block that matches the arc-shaped positioning groove.

[0014] Furthermore, the connecting frame includes a first fastener, a second fastener, and a connecting frame. The first fastener is detachably installed on the active frame and the driven frame respectively. The outer end of the first fastener has a first flange. The two ends of the connecting frame are detachably connected to the second fastener. The second fastener has a second flange. The first fastener and the second fastener can be fastened to each other through the first flange and the second flange. The first flange and the second flange are connected by bolts.

[0015] Furthermore, the connecting frame is a rectangular frame formed by connecting the first profile, the second profile, the third profile, and the fourth profile end to end in sequence.

[0016] Furthermore, relative to the second flange, a third flange and a fourth flange are respectively provided at both ends of the second fastener, and both the third flange and the fourth flange are provided with connecting plates that connect to the connecting frame. The third and fourth flanges form a groove with the second flange to cooperate with the connecting frame.

[0017] Furthermore, the connecting plate is provided with a limiting support plate.

[0018] A method for marking sleeper replacement intervals includes the aforementioned auxiliary sleeper replacement interval marking device. A controller controls a drive motor to rotate, thereby causing the horizontal wheel of the active mechanism to rotate. This allows the active mechanism to move on one rail. The active mechanism, through a connecting frame, drives a driven mechanism to move synchronously on another rail. Sensors collect information on the movement speed and distance of the active mechanism and transmit this information to the controller. Based on the obtained information, the controller controls the painting components on the active and driven mechanisms to spray paint onto the two rails at equal intervals, thereby synchronously marking positions on the two rails.

[0019] Compared with the prior art, the beneficial effects of the present invention are: it realizes the automated marking of two rails, and the four markings are on the same straight line. The spacing between the markings is highly accurate, which helps to reduce the labor intensity of workers and greatly improves work efficiency. Attached Figure Description

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

[0021] Figure 2 This is a schematic diagram of the active mechanism in this invention;

[0022] Figure 3 This is the decomposed structure of the active mechanism in this invention. Figure 1 ;

[0023] Figure 4 This is the decomposed structure of the active mechanism in this invention. Figure 2 ;

[0024] Figure 5 This is a schematic diagram of the driven mechanism in this invention;

[0025] Figure 6 This is an exploded structural diagram of the driven mechanism in this invention;

[0026] Figure 7 This is a schematic diagram of the painting assembly in this invention. Figure 1 ;

[0027] Figure 8 This is a schematic diagram of the painting assembly in this invention. Figure 2 ;

[0028] Figure 9 This is a schematic diagram of the painting assembly in this invention. Figure 3 ;

[0029] Figure 10 This is an exploded structural diagram of the paint spraying component in this invention;

[0030] Figure 11 This is a schematic diagram of the base structure in the paint spraying assembly;

[0031] Figure 12 This is a schematic diagram of the self-spraying paint can in the spray painting assembly;

[0032] Figure 13 This is a diagram showing the connection relationship between the adjusting column and the nozzle connecting plate;

[0033] Figure 14 This is a schematic diagram of the connecting frame structure in this invention;

[0034] Figure 15 This is a structural diagram of the right side of the connecting frame;

[0035] Figure 16 yes Figure 15 A schematic diagram of the decomposed structure;

[0036] Figure 17 This is a structural diagram of the left side of the connecting frame;

[0037] Figure 18 yes Figure 17 A schematic diagram of the decomposed structure;

[0038] Figure 19 This is a diagram showing the connection relationship between the connecting frame and the active mechanism;

[0039] Figure 20 This is a diagram showing the connection relationship between the connecting frame and the driven mechanism;

[0040] Figure 21 This is a diagram showing the working state of the present invention. Detailed Implementation

[0041] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0042] like Figures 1 to 21 As shown, an auxiliary pillow changing interval marking device includes an active mechanism 10 and a driven mechanism 20, wherein the active mechanism 10 and the driven mechanism 20 are detachably connected by a connecting frame 30.

[0043] The active mechanism 10 includes an active frame 101. A controller 102, a power supply 103, sensors, a drive motor 104, and a painting assembly 105 are mounted on the active frame 101. The power supply 103 supplies power to the drive motor 104, sensors, and controller 102. The drive motor 104, sensors, and painting assembly 105 are electrically connected to the controller 102. Vertical clamping wheels 106 and horizontal wheels 107 are mounted at the bottom of the active frame 101. The horizontal wheels 107 are driven by the drive motor 104. Specifically, the sensors include a speed sensor and a distance sensor. Two sets of vertical clamping wheels 106 are provided, corresponding to the front and rear ends of the bottom of the active frame 101. Two horizontal wheels 107 are provided corresponding to the vertical clamping wheels 106. The painting assembly 105 is symmetrically mounted on both sides of the rear end of the active frame 101. The speed sensor and distance sensor transmit the detected speed and distance information to the controller 102. The controller 102 controls the operation of the drive motor 104 and the solenoid valve 105-3 according to the built-in parameters. To facilitate remote control by the operator, a remote control receiver 108 is installed on the active frame 101. The remote control receiver 108 is powered by the power supply 103 and is electrically connected to the controller 102 to transmit signals.

[0044] The driven mechanism 20 includes a driven frame 201, on which a paint spraying assembly 105 is mounted. The paint spraying assembly 105 is electrically connected to the controller 102. Two horizontal wheels 107 are mounted at the bottom of the driven frame 201.

[0045] In this embodiment, the active mechanism 10 serves as the power side. The active mechanism 10 is equipped with two sets of vertical rail clamping wheels 106 and two horizontal wheels 107. One of the horizontal wheels 107 acts as the power wheel, driven by the drive motor 104. The driven mechanism 20 does not have vertical rail clamping wheels; only the horizontal wheel 107 contacts the rail surface. The entire device forms a natural right-angle ruler. When the motion curve of the active mechanism 10 changes, the driven mechanism 20 will change accordingly. This satisfies the requirement that the four markings must be on a straight line during sleeper replacement, and that this straight line must be the normal to the double-rail curve.

[0046] See Figures 7 to 12As shown, the spray painting assembly 105 includes a mounting bracket 105-1, a spray paint can 105-2, a solenoid valve 105-3, a base 105-4, a handle 105-5, a connecting rod 105-6, a rotating shaft 105-7, an anti-drop cap 105-8, a nozzle 105-9, and a spray head 105-10. The bottom of the base 105-4 is detachably connected to the mounting bracket 105-1 by screws. One end of the connecting rod 105-6 is hinged to the base. On the base 105-4, one end is hinged to the end of the handle 105-5. An anti-drop cap 105-8 is movably installed inside the base 105-4. A nozzle 105-10 is embedded at the bottom of the anti-drop cap 105-8. A waist-shaped hole 105-11 is vertically opened on the base 105-4. Both the base 105-4 and the anti-drop cap 105-8 have through holes 105-12 corresponding to the outlet of the nozzle 105-10. The two ends of the rotating shaft 105-7 are connected to... The handle 105-5 is hinged, and the pivot 105-7 passes through the oblong hole 105-11 and the anti-drop cap 105-8. The central axes of the base 105-4, the anti-drop cap 105-8, and the nozzle 105-10 coincide. One end of the mounting bracket 105-1 is connected to the drive frame 101 or the driven frame 201, and the other end is a free end. A U-shaped insertion port 105-13 is provided on the free end, and the top of the spray paint can 105-2 is snapped into it. At the U-shaped connector 105-13, the outlet of the spray paint can 105-2 is connected to the inlet of the nozzle 105-10. The outlet of the nozzle 105-10 is connected to the inlet of the solenoid valve 105-3 via pipe 105-14. The outlet of the solenoid valve 105-3 is connected to the nozzle 105-9 via pipe 105-14. The solenoid valve 105-3 and the nozzle 105-9 are both installed on the active frame 101 and the driven frame 201. The top of the spray paint can 105-2 has a flange 105-15, which allows the spray paint can 105-2 to be engaged with the U-shaped connector 105-13, ensuring that the inlet of the nozzle 105-10 is connected to the outlet of the spray paint can 105-2.

[0047] The active frame 101 includes a base plate 101-1, a left side plate 101-2, a right side plate 101-3, a front panel 101-4, a rear panel 101-5, and a top plate 101-6. The base plate 101-1, the left side plate 101-2, the right side plate 101-3, the front panel 101-4, the rear panel 101-5, and the top plate 101-6 form a rectangular box, the interior of which is an installation space. The controller 102, the power supply 103, the sensor, the solenoid valve 105-3, and the drive motor 104 are all installed in the installation space. The left and right side plates 101-2 and 101-3 are respectively provided with grooves 101-7. A mounting bracket 105-1 is installed on the edge of the groove 101-7. The groove 101-7 has an opening for the pipe 105-14 to pass through the installation space. A solenoid valve mounting base 101-8 is fixed within the installation space. The left and right sides of the solenoid valve mounting base 101-8 are detachably connected to the inner walls of the left and right side plates 101-2 and 101-3. The solenoid valve 105-3 is fixed on the solenoid valve mounting base 101-8. The pipe 105-14 between the outlet of the nozzle 105-10 and the inlet of the solenoid valve 105-3 enters the installation space through the opening in the groove 101-7. A pipe hole 101-9 is opened at the lower part of the rear panel 101-5. The pipe 105-14, connected to the outlet of the solenoid valve 105-3, extends out of the installation space through this pipe hole 101-9 and connects to the nozzle 105-9. This structural design facilitates the neat arrangement of pipes 105-14 and makes subsequent maintenance easier. The top plate 101-6 is equipped with a top pull ring 101-10, a control switch 101-11, and an indicator light 101-12. The top pull ring 101-10 facilitates the removal of the top plate 101-6. The indicator light 101-12 is powered by the power supply 103 and connected to the controller 102 to display the equipment's operating status. The control switch 101-11 is used for manual control of the equipment's opening and closing.

[0048] The driven frame 201 includes a base plate 201-1, a left side plate 201-2, a right side plate 201-3, a front panel 201-4, a rear panel 201-5, and a top plate 201-6. The base plate 201-1, the left side plate 201-2, the right side plate 201-3, the front panel 201-4, the rear panel 201-5, and the top plate 201-6 form a rectangular box, the interior of which is an installation space. The left and right side plates 201-2 and 201-3 are respectively provided with grooves 201-7. A mounting bracket 105-1 is installed on the edge of the groove 201-7. The groove 201-7 has an opening for the pipe 105-14 to pass through the installation space. The solenoid valve 105-3 is fixed to the base plate 201-1. The pipe 105-14 between the outlet of the nozzle 105-10 and the inlet of the solenoid valve 105-3 enters the installation space through the opening in the groove 201-7. A pipe hole 201-8 is opened at the lower part of the rear panel 201-5. The pipe 105-14 connected to the outlet of the solenoid valve 105-3 extends out of the installation space through this pipe hole 201-8 and connects to the nozzle 105-9. This structural design facilitates the neat arrangement of the pipe 105-14 and makes subsequent maintenance easier.

[0049] Adjusting columns 4 and nozzle connecting plates 5 are respectively installed on both sides of the rear end of the active frame 101 and the driven frame 201. The adjusting column 4 has a vertical sliding groove 41, and a slider 42 is slidably fitted in the sliding groove 41. The nozzle connecting plate 5 has an elongated hole 51, and a fastening screw 6 passes through the elongated hole 51 and is threadedly engaged with the slider, thereby connecting and fixing the nozzle connecting plate 5 to the adjusting column 4. A nozzle fixing plate 7 extends from the nozzle connecting plate 5, and a nozzle pressure plate 8 is detachably connected to the nozzle fixing plate 7 by screws. Semicircular holes 9 are correspondingly opened on the nozzle fixing plate 7 and the nozzle pressure plate 8. When the nozzle fixing plate 7 and the nozzle pressure plate 8 are fitted together, a circular hole is formed between the nozzle fixing plate 7 and the nozzle pressure plate 8, and the nozzle 105-9 is fitted and fixed in the circular hole. In use, the vertical position of the nozzle 105-9 is adjusted by the position of the slider 42 within the slide groove 41, the horizontal position of the nozzle 105-9 is adjusted by the position of the fastening screw 6 within the elongated hole 51, and the pitch angle of the nozzle 105-9 is adjusted by the angle between the adjusting column 4 and the nozzle connecting plate 5. In this embodiment, the nozzle 105-9 is a strip-shaped atomizing nozzle head.

[0050] To ensure a tight connection between the anti-drop cap 105-8 and the nozzle 105-10, the side wall of the anti-drop cap 105-8 is provided with multiple threaded holes 501 in the circumferential direction corresponding to the nozzle 105-10. Fastening screws are installed in the threaded holes 501, and the ends of the fastening screws abut against the outer wall of the nozzle 105-10, thereby further strengthening the tight connection between the anti-drop cap 105-8 and the nozzle 105-10.

[0051] The nozzle 105-10 is provided with a stepped surface 601, and the bottom of the anti-drop cap 105-8 fits on the stepped surface 601. At this time, the outer wall of the anti-drop cap 105-8 is flush with the lower outer wall of the nozzle 105-10. This not only makes the appearance more aesthetically pleasing, but the stepped surface 601 also limits the length of the nozzle 105-10 extending into the anti-drop cap 105-8.

[0052] In this embodiment, the card holder 105-1 is provided with an arc-shaped positioning groove 105-16, and the bottom of the base 105-4 is provided with an arc-shaped positioning block 105-17 that matches the arc-shaped positioning groove 105-16. The arc-shaped positioning block 105-17 fits in the arc-shaped positioning groove 105-16, so that the base 105-4 is positioned when connected to the card holder 105-1, thereby ensuring the accuracy of the position.

[0053] Working principle of the spray painting assembly: Pressing down the handle 105-5 causes the rotating shaft 105-7 to slide downwards in the oblong hole 105-11 of the base 105-4. The anti-drop cap 105-8 and the nozzle 105-10 move downwards together within the base 105-4 via the rotating shaft 105-7. When the rotating shaft 105-7 passes the central axis of the connecting rod 105-6, the entire structure is locked. At this time, the paint in the paint tank 105-2 is continuously sprayed out through the nozzle 105-10. The controller 102 controls the solenoid valve 105-3 to control whether the paint is sprayed out of the nozzle 105-9 and the amount of paint sprayed, thus ensuring precise control of paint usage and avoiding waste. Flipping up the handle 105-5 releases the locked state of the structure, and the nozzle 105-10 moves upwards, ending the continuous spraying state. This structural design allows the self-spraying paint can 105-2 to remain in a continuously pressed state, and the solenoid valve 105-3 controls whether to spray paint the rails, which is beneficial to the automation of the equipment.

[0054] See Figures 14 to 20 As shown, the connecting frame 30 includes a first fastener 301, a second fastener 302, and a connecting frame 303. The first fastener 301 is detachably installed on the active frame 101 and the driven frame 201 respectively. The outer end of the first fastener 301 has a first flange 304. The two ends of the connecting frame 303 are detachably connected to the second fastener 302. The second fastener 302 has a second flange 305. The first fastener 301 and the second fastener 302 can be fastened to each other through the first flange 304 and the second flange 305. The first flange 304 and the second flange 305 are connected by bolts.

[0055] The connecting frame 303 is a rectangular frame. It is formed by sequentially connecting a first profile 303-1, a second profile 303-2, a third profile 303-3, and a fourth profile 303-4. Each of the first profile 303-1, second profile 303-2, third profile 303-3, and fourth profile 303-4 has a sliding groove 303-5 on its sidewall. The two ends of the first profile 303-1 are connected to the second profile 303-2 and the fourth profile 303-4 respectively via L-shaped connecting blocks 303-6, and the two ends of the third profile 303-3 are also connected to the second profile 303-2 and the fourth profile 303-4 respectively via L-shaped connecting blocks 303-6. The L-shaped connecting blocks 303-6 fit within the sliding grooves 303-5. Reinforcing columns 303-7 are detachably provided within the rectangular frame to enhance the stability and strength of the overall structure.

[0056] A third flange 306 and a fourth flange 307 are respectively provided at both ends of the second fastener 302 relative to the second flange 305. Both the third flange 306 and the fourth flange 307 are provided with connecting plates 308 that connect to the connecting frame 303. The end of the connecting plate 308 is provided with a limiting support plate 309. The third and fourth flanges 306 and 307 form a groove 310 with the second flange 305 to cooperate with the connecting frame 303.

[0057] One end of the connecting frame 303 is connected to the driving frame 101 through the cooperation of the first fastener 301 and the second fastener 302, and the other end is connected to the driven frame 201 through the cooperation of the first fastener 301 and the second fastener 302. Specifically, the first fastener 301 is fixed to the driving frame 101 and the driven frame 201 by bolts or screws. The first profile 303-1 and the third profile 303-3 are fitted into the groove 10 formed between the third and fourth flanges 306 and 307 and the second flange 305. The second fastener 302 is fastened to the first profile 303-1 and the third profile 303-3 by bolts or screws. At this time, the connecting plate 308 is in contact with the inner wall of the connecting frame 303, and the limiting support plate 309 is in contact with the bottom surface of the connecting frame 303. Then, the second flange 305 is fastened to the first flange 304. Finally, the second fastener 302, the connecting frame 303, the first fastener 301, the active frame 101, and the driven frame 201 are connected as a whole by bolts or screws.

[0058] The active mechanism, driven mechanism, and connecting frame of this equipment are connected by splicing, which makes installation and disassembly convenient. It can realize the quick connection or separation of the active mechanism, driven mechanism, and connecting frame, and provides sufficient connection rigidity. Therefore, it is beneficial for the storage and handling of each part.

[0059] A method for marking sleeper replacement intervals includes the aforementioned auxiliary sleeper replacement interval marking device. A controller controls a drive motor to operate, which in turn drives the horizontal wheel of the active mechanism to rotate, causing the active mechanism to move on one rail. The active mechanism, through a connecting frame, drives a driven mechanism to move synchronously on the other rail. Sensors collect information on the movement speed and distance of the active mechanism and transmit this information to the controller. Based on the obtained information, the controller controls the painting components on both the active and driven mechanisms to spray paint onto the two rails at equal intervals, thereby synchronously marking the positions on both rails. The amount of paint sprayed is controlled by the controller through the operating time of a solenoid valve.

[0060] Similarly, it should be understood that, in order to simplify this disclosure and aid in understanding one or more of the various aspects of the invention, in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof. However, this method of disclosure should not be construed as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as reflected in the following claims, inventive aspects lie in fewer than all features of a single foregoing disclosed embodiment. Therefore, the claims following the detailed description are hereby expressly incorporated into this detailed description, wherein each claim itself is a separate embodiment of the invention.

[0061] Those skilled in the art will understand that modules in the device of the embodiments can be adaptively changed and placed in one or more devices different from that embodiment. Modules, units, or components in the embodiments can be combined into a single module, unit, or component, and further, they can be divided into multiple sub-modules, sub-units, or sub-components. Except where at least some of such features and / or processes or units are mutually exclusive, any combination can be used to combine all features disclosed in this specification (including the accompanying claims, abstract, and drawings) and all processes or units of any method or device so disclosed. Unless expressly stated otherwise, each feature disclosed in this specification (including the accompanying claims, abstract, and drawings) may be replaced by an alternative feature that serves the same, equivalent, or similar purpose.

[0062] Furthermore, those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments can be used in any combination.

[0063] It should be noted that the above embodiments are illustrative of the invention and not restrictive, and that those skilled in the art can devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses should not be construed as limiting the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention can be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third, etc., does not indicate any order. These words can be interpreted as names.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An auxiliary pillow changing interval marking device, characterized in that: Including active mechanisms and passive mechanisms, The active mechanism and the driven mechanism are detachably connected via a connecting frame; The active mechanism includes an active frame on which a controller, a power supply, a sensor, a drive motor, and a painting assembly are mounted. The power supply provides power to the drive motor, the sensor, and the controller. The drive motor, the sensor, and the painting assembly are electrically connected to the controller. Vertical clamping wheels and horizontal wheels are mounted at the bottom of the active frame. The horizontal wheels are driven by the drive motor. The driven mechanism includes a driven frame, on which a painting assembly is mounted, the painting assembly being electrically connected to a controller, and horizontal wheels mounted at the bottom of the driven frame; The spray painting assembly includes a mounting bracket, a self-spraying paint can, a solenoid valve, a base, a handle, a connecting rod, a rotating shaft, a safety cap, a nozzle, and a spray head. The base is detachably connected to the mounting bracket. One end of the connecting rod is hinged to the base, and the other end is hinged to the handle. A safety cap is movably installed inside the base, and a spray head is embedded at the bottom of the safety cap. A waist-shaped hole and a through hole corresponding to the nozzle outlet are vertically formed on the base. Both ends of the rotating shaft are hinged to the handle, and the rotating shaft passes through the waist-shaped hole and the safety cap. The cap, the base, the anti-fall cap, and the nozzle's central axis coincide. One end of the mounting bracket is connected to the active frame or the passive frame, and the other end is a free end. A U-shaped socket is provided on the free end, and the top of the paint can is snapped into the U-shaped socket. The outlet of the paint can is connected to the inlet of the nozzle. The outlet of the nozzle is connected to the inlet of the solenoid valve through a pipe. The outlet of the solenoid valve is connected to the nozzle through a pipe. Solenoid valves and nozzles are installed on both the active frame and the passive frame.

2. The auxiliary pillow changing interval marking device according to claim 1, characterized in that: Both the active frame and the driven frame are equipped with adjusting columns and nozzle connecting plates. The adjusting column has a vertical groove, in which a slider slides. The nozzle connecting plate has an elongated hole, through which a fastening screw passes and engages with the slider threadedly, thereby connecting and fixing the nozzle connecting plate to the adjusting column. A nozzle fixing plate extends from the nozzle connecting plate, and a nozzle pressure plate is detachably connected to the nozzle fixing plate. Semicircular holes are correspondingly opened on the nozzle fixing plate and the nozzle pressure plate, and the nozzle is fitted and fixed in the circular hole formed by the nozzle fixing plate and the nozzle pressure plate.

3. The auxiliary pillow changing interval marking device according to claim 2, characterized in that: The anti-cap sidewall has threaded holes along the circumference of the nozzle.

4. The auxiliary pillow changing interval marking device according to claim 3, characterized in that: The card holder is provided with an arc-shaped positioning groove, and the bottom of the base is provided with an arc-shaped positioning block that matches the arc-shaped positioning groove.

5. The auxiliary pillow changing interval marking device according to claim 4, characterized in that: The connecting frame includes a first fastener, a second fastener, and a connecting frame. The first fastener is detachably installed on the active frame and the driven frame respectively. The outer end of the first fastener has a first flange. The two ends of the connecting frame are detachably connected to the second fastener. The second fastener has a second flange, and the first fastener and the second fastener can be fastened to each other through the first flange and the second flange. The first flange and the second flange are connected by bolts.

6. The auxiliary pillow changing interval marking device according to claim 5, characterized in that: The connecting frame is a rectangular frame formed by connecting the first profile, the second profile, the third profile, and the fourth profile end to end in sequence.

7. The auxiliary pillow changing interval marking device according to claim 6, characterized in that: A third flange and a fourth flange are respectively provided at both ends of the second fastener relative to the second flange, and a connecting plate for connecting the connecting frame is provided on the third flange and the fourth flange. The third and fourth flanges form a groove with the second flange to cooperate with the connecting frame.

8. The auxiliary pillow changing interval marking device according to claim 7, characterized in that: The connecting plate is equipped with a limiting support plate.

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