Long-distance vertical climbing ground chain conveying device for spraying pretreatment and spraying

Abstract

The invention relates to the related technical field of helmet conveying, in particular to a spraying pretreatment and spraying long-distance vertical climbing ground chain conveying device which comprises a conveying rail, a trolley, a labyrinth body, a cross arm, a rotating body, a top supporting rod, a water retaining disc, a radial fixing module, a negative pressure adsorption module and a climbing stabilizing module. The radial fixing module is matched with the flexible inner clamping head, self-adaptive radial expansion is achieved according to the inner diameter sizes of helmets of different specifications, and it is ensured that constant and lossless clamping force is applied to the helmets of various models in combination with an error compensation mechanism; meanwhile, the negative pressure adsorption module automatically adapts to the curvature of the top of the helmet, and efficient stability in the vertical direction is achieved through air pressure locking. Particularly, under the climbing working condition, gravity is used for triggering the climbing stabilizing module, so that the overturning baffle automatically forms external physical limiting, and the slipping risk is thoroughly eradicated through multiple guarantees.

Description

Technical Field

[0001] This invention relates to the field of helmet conveying technology, and in particular to a long-distance vertical climbing ground chain conveyor for pre-treatment and spraying. Background Technology

[0002] In the helmet manufacturing process, surface treatment processes (such as pre-treatment with spraying and electrostatic spraying) are key steps that determine the final appearance quality and corrosion resistance of the helmet. To improve production efficiency, reduce labor costs, and achieve automated assembly line operations, helmet manufacturers typically use continuous conveying equipment such as ground chain conveyors or overhead conveyors to transfer helmets between various processing stations.

[0003] In existing helmet conveying processes, such as Chinese patent publication number CN223832763U, a helmet conveying and drying device is disclosed, including a drying box and a transmission chain. The bottom of the drying box has an inlet and an outlet on both sides. Several sprockets are set inside the drying box. The transmission chain enters from the inlet, passes through the sprockets, and exits from the outlet to form a closed loop. A support rod is rotatably mounted on the side of the transmission chain. A support surface is set at the upper end of the support rod, and a counterweight is installed at the lower end of the support rod.

[0004] In the aforementioned prior art, the support rod is kept vertical by a counterweight under the influence of gravity, ensuring the helmet remains on the support surface. However, this prior art relies primarily on gravity for balance and lacks effective and strong fixation for the helmet. During long-distance vertical incline transport, the helmet is prone to slipping due to gravity, posing a safety hazard. Furthermore, during spraying operations, the helmet is easily shaken or displaced by the impact of the spray, making it difficult to maintain stability and affecting the uniformity and final quality of the helmet's surface treatment.

[0005] Therefore, there is still room for improvement in the aforementioned existing technologies. Summary of the Invention

[0006] In order to maintain the stability of the helmet during transportation and avoid slipping when climbing slopes and shaking due to impact during spraying, this application provides a long-distance vertical climbing ground chain conveyor for pre-treatment and spraying.

[0007] The long-distance vertical inclined ground chain conveyor device for spray pretreatment and spraying provided in this application adopts the following technical solution: A long-distance vertical incline ground chain conveyor for pre-treatment and spraying includes a transport track on which a trolley is mounted; a labyrinth body is mounted on the trolley; a crossbeam is mounted on the top of the labyrinth body; a rotating body is mounted on the crossbeam; a top support rod is mounted on the rotating body; a water baffle is fitted around the outer periphery of the middle of the top support rod; a radial fixing module is mounted on the water baffle, which radially clamps and fixes helmets of different sizes; a negative pressure adsorption module is mounted on the water baffle, which provides negative pressure adsorption and fixation for helmets of different sizes at the top; and an incline stabilizing module is mounted on the water baffle, which externally limits helmets of different sizes during incline conveying to prevent slippage.

[0008] Preferably, the transport track consists of a straight transport section and an inclined transport section.

[0009] Preferably, a sensor switch is provided at the top of the top support rod.

[0010] Preferably, the radial fixing module includes an annular shell mounted on the upper surface of the baffle plate, a threaded disc rotatably mounted on the baffle plate via an electric turntable, the threaded disc being located at the bottom of the annular shell, an extension sleeve slidably mounted radially on the annular shell, the extension sleeve engaging with the threaded disc via a linkage assembly, an inner clamping head slidably mounted inside the extension sleeve, a first spring connecting the inner clamping head and the extension sleeve, the first spring providing support and resetting, the outer end of the inner clamping head being made of flexible material, and a locking groove located inside the annular shell, a movable plate slidably mounted inside the locking groove, a second spring connecting the movable plate and the locking groove, the second spring providing resetting.

[0011] Preferably, the linkage assembly includes a linkage plate that slides up and down inside the protruding sleeve. A third spring connects the linkage plate and the protruding sleeve, providing support and resetting. The outer end of the linkage plate and the inner end of the inner clamping head are in a compression fit. Engaging teeth are evenly installed below the linkage plate, and the linkage plate engages with the threaded disc through the engagement teeth. Positioning keys are evenly installed above the linkage plate, and the positions of the positioning keys correspond to the locking slots.

[0012] Preferably, the negative pressure adsorption module includes a mounting frame symmetrically mounted on an annular shell, an outer sleeve mounted on the mounting frame with its outer end open and an air hole one at its bottom, an inner sliding cylinder slidably mounted on the outer sleeve, a fourth spring connecting the inner and outer sleeves for resetting, an air hole two at the bottom of the inner sliding cylinder, a suction cup at the outer end of the inner sliding cylinder, a sealing ring fitted around the outer circumference of the inner sliding cylinder and sliding up and down inside the outer sleeve, the sealing ring and the inner sliding cylinder cooperating through a pulley system, an air pump located below the baffle plate and connected to air hole one and air hole two via an airflow pipe, and a negative pressure locking mechanism located inside the inner sliding cylinder.

[0013] Preferably, the negative pressure locking mechanism includes an auxiliary component installed on the outer periphery of the inner slide cylinder, a pressure plate slidably disposed inside the auxiliary component, a fifth spring connected between the pressure plate and the auxiliary component, the fifth spring serving as a support and reset function, a snap-fit ​​component slidably disposed in the inner slide cylinder, one end of the snap-fit ​​component being connected to the pressure plate, snap-fit ​​grooves evenly distributed on the inner wall of the outer sleeve, the openings of the snap-fit ​​grooves being chamfered, the snap-fit ​​component and the snap-fit ​​grooves being snap-fit ​​engaged, and a sealing component installed on the snap-fit ​​component, the sealing component corresponding to the position of the first air hole.

[0014] Preferably, the slope stabilization module includes a flip-up baffle, which is rotatably mounted in an installation groove on the baffle plate; a counterweight, which is slidably mounted below the baffle plate; a sixth spring connecting the counterweight and the baffle plate, which serves as a reset function; and a connecting cable connecting the counterweight and the flip-up baffle. In summary, the beneficial technical effects of this application are as follows: The long-distance vertical climbing ground chain conveyor device for pre-treatment and spraying described in this invention significantly solves the stability problem of helmets during long-distance vertical climbing and spraying operations by constructing an adaptive and stable conveying system that integrates internal support, adsorption, and external limiting. This application utilizes a radial fixing module in conjunction with a flexible inner clamping head to achieve adaptive radial expansion based on the inner diameter of helmets of different specifications. Combined with an error compensation mechanism, it ensures a constant and non-destructive clamping force on each helmet model. Simultaneously, the negative pressure adsorption module automatically adapts to the curvature of the helmet's top, achieving efficient vertical stabilization through air pressure locking. Specifically, during climbing operations, gravity triggers the climbing stabilization module, causing the flip-up baffle to automatically form an external physical limit, providing multiple safeguards to completely eliminate the risk of slippage. This multi-dimensional collaborative fixing method not only greatly improves the stability of the conveying process but also effectively avoids spray drips or uneven thickness caused by mechanical shaking, thereby significantly improving the surface treatment quality of helmets and the efficiency of automated production. Attached Figure Description

[0015] Figure 1 This is a first three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the structure between the rotating body, top support rod, water baffle plate, radial fixing module, negative pressure adsorption module, and slope stabilization module of the present invention. Figure 3 This is a schematic diagram of the structure between the top support rod and the inductive switch of the present invention; Figure 4 This is a schematic diagram of the radial fixing module of the present invention; Figure 5 This is a schematic diagram of the structure between the linkage component, locking slot, and movable plate of the present invention; Figure 6 This is a schematic diagram of the structure between the negative pressure adsorption modules of the present invention; Figure 7 This is a schematic diagram of the negative pressure locking mechanism of the present invention; Figure 8 This is a schematic diagram of the structure between the water baffle and the air pump of the present invention; Figure 9 This is a structural schematic diagram of the slope stabilization module of the present invention.

[0016] Explanation of reference numerals in the attached drawings: 1. Transport track; 2. Trolley; 3. Maze body; 4. Crossbeam; 5. Rotating body; 6. Top support rod; 7. Water baffle plate; 8. Radial fixing module; 9. Negative pressure adsorption module; 10. Climbing and stabilizing module; 61. Inductive switch; 81. Annular shell; 82. Threaded disc; 83. Extending sleeve; 84. Linkage assembly; 85. Inner clamping head; 86. Locking slot; 87. Movable plate; 841. Linkage plate; 842. Meshing teeth; 843. Positioning key; 91. Mounting bracket; 92. Outer sleeve; 921. Air hole one; 93. Inner slide cylinder; 931. Air hole two; 94. Suction cup; 95. Sealing ring; 96. Pulley block; 97. Air pump; 98. Negative pressure locking mechanism; 981. Auxiliary parts; 982. Pressure plate; 983. Snap-fit ​​parts; 922. Snap-fit ​​groove; 984. Sealing parts; 985. Sealing parts; 101. Flip baffle; 102. Counterweight; 103. Connecting cable. Detailed Implementation

[0017] The following is in conjunction with the appendix Figures 1-9 This application will be described in further detail.

[0018] This application discloses a long-distance vertical climbing ground chain conveyor for spray pretreatment and spraying. The helmet is firmly fixed by internal top support and negative pressure adsorption. When climbing, gravity is used to provide external support for the helmet to prevent it from falling off, thus ensuring the stability of the helmet transportation.

[0019] Reference Figure 1 , Figure 2As shown, the long-distance vertical climbing ground chain conveyor for pre-treatment and spraying includes a transport track 1 on which a trolley 2 is mounted, a maze body 3 mounted on the trolley 2, a crossbeam 4 mounted on the top of the maze body 3, a rotating body 5 mounted on the crossbeam 4, a top support rod 6 mounted on the rotating body 5, a water baffle 7 mounted on the outer periphery of the middle of the top support rod 6, a radial fixing module 8 mounted on the water baffle 7, the radial fixing module 8 for radially clamping and fixing helmets of different sizes, a negative pressure adsorption module 9 mounted on the water baffle 7, the negative pressure adsorption module 9 for top negative pressure adsorption and fixing helmets of different sizes, and a climbing stabilizing module 10 mounted on the water baffle 7, the climbing stabilizing module 10 for externally limiting helmets of different sizes during climbing transport to prevent slippage.

[0020] In actual operation, the helmet (semi-finished product) is placed on the water-retaining plate 7 by the (robotic arm), and the top support rod 6 abuts against the inner wall of the helmet. The radial fixing module 8 is triggered, and the radial fixing module 8 extends outward to abut against the inner wall of the helmet, squeezing and clamping the helmet from the inside out (near the neck). At the same time, the negative pressure adsorption module 9 is also triggered, and the negative pressure adsorption module 9 applies negative pressure adsorption to the inner wall of the helmet (top of the head), further enhancing the stability of the helmet. When transporting to a slope, the slope stabilizing module 10 is triggered, and the slope stabilizing module 10 limits the helmet from the outside to prevent the helmet from slipping when climbing. This application provides multi-faceted clamping for helmets of different specifications and adaptive protection for special situations of slope transport, ensuring stable helmet transport.

[0021] Reference Figure 1 As shown, the transport track 1 consists of a straight transport section and an inclined transport section.

[0022] Reference Figure 3 As shown, a sensor switch 61 is provided on the top of the top support rod 6. The sensor switch 61 is existing technology.

[0023] In actual operation, when the helmet is placed on the top support rod 6, the sensor switch 61 senses the pressure change and is triggered to activate the negative pressure adsorption module 9 and the climbing stabilization module 10.

[0024] Reference Figure 2 , Figure 4 , Figure 5As shown, the radial fixing module 8 includes an annular shell 81, which is installed on the upper surface of the baffle plate 7; a threaded disc 82, which is rotatably mounted on the baffle plate 7 via an electric turntable and is located at the bottom of the annular shell 81; an extension sleeve 83, which is radially slidably mounted on the annular shell 81 and is engaged with the threaded disc 82 via a linkage assembly 84; an inner clamping head 85, which is slidably mounted inside the extension sleeve 83; a first spring connecting the inner clamping head 85 and the extension sleeve 83, which provides support and reset; the outer end of the inner clamping head 85 is made of flexible material; and a locking groove 86, which is located inside the annular shell 81. A movable plate 87 is slidably mounted inside the locking groove 86, and a second spring connecting the movable plate 87 and the locking groove 86, which provides reset.

[0025] Reference Figure 5 As shown, the linkage assembly 84 includes a linkage plate 841, which is slidably disposed inside the protruding sleeve 83. A third spring is connected between the linkage plate 841 and the protruding sleeve 83. The third spring provides support and reset. The outer end of the linkage plate 841 is in a pressing fit with the inner end of the inner clamping head 85. Engaging teeth 842 are evenly installed below the linkage plate 841. The linkage plate 841 engages with the threaded disc 82 through the engaging teeth 842. Positioning keys 843 are evenly installed above the linkage plate 841. The position of the positioning keys 843 corresponds to the position of the locking slot 86.

[0026] In actual operation, the induction switch 61 triggers the electric turntable to start, which drives the threaded disc 82 to rotate. Under the meshing action, the threaded disc 82 drives the meshing teeth 842 to move, thereby causing the extension sleeve 83 to extend outward. The inner clamping head 85 follows the extension sleeve 83 to extend outward, gradually contacting and squeezing the helmet (several inner clamping heads 85 squeeze the helmet from different directions to achieve dynamic balance). When the squeezing force reaches the set value, the spring force of the first spring is overcome, and relative sliding occurs between the inner clamping head 85 and the extension sleeve 83. The linkage plate 841 squeezes the inner clamping head 85, and the linkage plate 841 is squeezed upward (the spring force of the third spring is overcome). At this time, the meshing teeth 842 follow the linkage plate 841 to move upward, thereby disengaging from the threaded disc 82. At the same time, the positioning key 843 follows the linkage plate 841 to move upward. The upward-moving positioning key 843 inserts into the locking slot 86, thereby locking the position of the inner clamping head 85 radially, realizing the internal squeezing and clamping of the helmet.

[0027] The inner clamping head 85 is locked only when the compressive force between it and the helmet overcomes the spring forces of the first and third springs. Therefore, the compressive force between several inner clamping heads 85 and the helmet can remain consistent, clamping and securing the helmet within a suitable range. Furthermore, because the helmet specifications are fixed (according to the current Chinese mandatory national standard GB 811-2022, motorcycle and electric bicycle helmets are clearly divided into five sizes based on head circumference: extra small (corresponding to a head circumference of approximately 52 cm or less); small (corresponding to a head circumference of approximately 52-56 cm); medium (corresponding to a head circumference of approximately 56-58 cm); large (corresponding to a head circumference of approximately 58-60 cm); and extra large (corresponding to a head circumference of approximately 60 cm or more), the inner clamping head 85 can achieve the specified compressive force with the helmet by moving a fixed distance. Considering errors in actual production, the movable plate 87 serves as an error compensation mechanism, moving within the locking slot 86 to allow for a certain degree of error in the insertion of the positioning key 843.

[0028] Reference Figure 2 , Figures 6-8 As shown, the negative pressure adsorption module 9 includes a mounting frame 91, which is symmetrically mounted on the annular shell 81; an outer sleeve 92, which is mounted on the mounting frame 91, with its outer end open and an air hole 921 at its bottom; an inner sliding cylinder 93, which is slidably mounted on the outer sleeve 92; a fourth spring connecting the inner sliding cylinder 93 and the outer sleeve 92, which serves as a reset mechanism; an air hole 931 at the bottom of the inner sliding cylinder 93; a suction cup 94 at the outer end of the inner sliding cylinder 93; a sealing ring 95, which is fitted around the outer circumference of the inner sliding cylinder 93 and slides up and down inside the outer sleeve 92; the sealing ring 95 and the inner sliding cylinder 93 are connected by a pulley group 96; an air pump 97, which is located below the baffle plate 7; the air pump 97 is connected to the air hole 921 and the air hole 931 respectively through an airflow pipe; and a negative pressure locking mechanism 98, which is located inside the inner sliding cylinder 93.

[0029] Reference Figure 7 As shown, the negative pressure locking mechanism 98 includes an auxiliary component 981, which is installed on the outer periphery of the inner slide cylinder 93. The auxiliary component 981 is slidably engaged with the outer sleeve 92 through a sealing component 985. A pressure plate 982 is slidably arranged inside the auxiliary component 981. A fifth spring is connected between the pressure plate 982 and the auxiliary component 981. The fifth spring plays a supporting and resetting role. A snap-fit ​​component 983 is slidably arranged in the inner slide cylinder 93. One end of the snap-fit ​​component 983 is connected to the pressure plate 982. Snap-fit ​​grooves 922 are evenly opened on the inner wall of the outer sleeve 92. The opening of the snap-fit ​​grooves 922 is chamfered. The snap-fit ​​component 983 and the snap-fit ​​grooves 922 are snap-fit ​​engaged. A sealing component 984 is installed on the snap-fit ​​component 983. The sealing component 984 corresponds to the position of the air hole 921.

[0030] During actual operation, the induction switch 61 triggers the air pump 97 to start. The air pump 97 draws air through the air hole 921, creating a negative pressure inside the outer sleeve 92. Since the outer end of the outer sleeve 92 is open and connected to the outside, under the action of external atmospheric pressure, the sealing ring 95 moves towards the bottom of the outer sleeve 92. Under the action of the pulley block 96, the inner sliding cylinder 93 is pulled towards the outer end of the outer sleeve 92. The outwardly moving inner sliding cylinder 93 gradually approaches the inner wall of the helmet, and the suction cup 94 contacts the inner wall of the helmet, thereby... When the suction cup is blocked, the air pump 97 is constantly working. When the suction cup 94 is blocked, the internal air pressure of the inner slide cylinder 93 gradually decreases. At this time, because the auxiliary part 981 is connected to the outside, the pressure plate 982 is squeezed and moved under the action of the external pressure. The locking part 983 moves with the pressure plate 982 and inserts into the locking groove 922, thereby locking the position of the inner slide cylinder 93. At the same time, the sealing part 984 moves with the locking part 983 to seal the air hole 921, so that the negative pressure inside the outer sleeve 92 disappears.

[0031] Similarly, depending on the helmet specifications, the snap fastener 983 is inserted into the snap fastener slot 922 at different positions. The chamfered opening of the snap fastener slot 922 allows the snap fastener 983 to still be inserted into the snap fastener slot 922 by squeezing, even with a certain error.

[0032] Reference Figure 9 As shown, the slope stabilization module 10 includes a flip baffle 101, which is rotatably mounted in the mounting groove opened on the water baffle 7, a counterweight 102, which is slidably mounted below the water baffle 7, a sixth spring connecting the counterweight 102 and the water baffle 7, the sixth spring serving as a reset function, and a connecting cable 103 connecting the counterweight 102 and the flip baffle 101.

[0033] In actual operation, when climbing a slope, the water deflector 7 tilts. At this time, under the action of gravity, the counterweight 102 overcomes the elastic force of the sixth spring and slides to a lower position. Under the traction of the connecting cable 103, the flip baffle 101 is pulled and flipped. After flipping, the flip baffle 101 contacts the helmet on the water deflector 7, thereby limiting the helmet from the outside.

[0034] Similarly, the flip-up baffle 101 flips to different degrees depending on the size of the helmet, and always stops flipping after contacting the helmet, thus adapting to different helmet sizes.

[0035] The implementation principle of this embodiment is as follows: Step 1: The helmet is placed on the water deflector 7; Step 2: The top support rod 6 touches the inner wall of the helmet, and the sensor switch 61 is triggered; Step 3: The radial fixing module 8 is triggered, and the radial fixing module 8 squeezes and clamps the helmet from the inside out. The negative pressure adsorption module 9 is also triggered, and the negative pressure adsorption module 9 adsorbs the inner wall of the helmet with negative pressure. Step 4: The helmet is transported normally; Step 5: When transporting the helmet uphill, the uphill stabilization module 10 externally limits its movement to prevent it from slipping off. Step Six: The helmet is transported to the workstation.

[0036] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A long-distance vertical inclined ground chain conveyor device for pretreatment and spraying, characterized in that, include: The transport track is equipped with trolleys; The maze is mounted on a trolley, with a crossbeam on top and a rotating body on the crossbeam. A top support rod is mounted on the rotating body, and a water baffle is fitted around the outer periphery of the middle part of the top support rod; The radial fixing module is installed on the water baffle plate. The radial fixing module clamps and fixes helmets of different sizes radially inward. The negative pressure adsorption module is installed on the water baffle plate. The negative pressure adsorption module uses negative pressure adsorption to fix helmets of different sizes at the top. The climbing stabilization module, installed on the water-blocking plate, provides external restraint for helmets of different sizes during climbing and transportation, preventing them from slipping.

2. The long-distance vertical inclined ground chain conveyor device for pretreatment and spraying according to claim 1, characterized in that, The transport track consists of a straight transport section and an inclined transport section.

3. The long-distance vertical inclined ground chain conveyor device for pretreatment and spraying according to claim 1, characterized in that, A sensor switch is installed at the top of the top support rod.

4. The long-distance vertical inclined ground chain conveyor device for pretreatment and spraying according to claim 1, characterized in that, The radial fixing module includes: An annular shell is installed on the upper surface of the baffle plate; The threaded disc is mounted on the baffle plate by being rotated by an electric turntable, and the threaded disc is located at the bottom of the annular shell; The extension sleeve is radially slidably mounted on the annular shell, and the extension sleeve is engaged with the threaded disc via a linkage assembly. The inner clamping head is slidably disposed inside the protruding sleeve. A first spring connects the inner clamping head and the protruding sleeve. The outer end of the inner clamping head is made of flexible material. The locking slot is located inside the annular shell. A movable plate is slidably arranged inside the locking slot, and a second spring connects the movable plate and the locking slot.

5. The long-distance vertical inclined ground chain conveyor device for pretreatment and spraying according to claim 4, characterized in that, The linkage component includes: The linkage plate is slidably disposed inside the extended sleeve. A third spring connects the linkage plate and the extended sleeve. The outer end of the linkage plate and the inner end of the inner clamping head are in a compression fit. The meshing teeth are evenly installed below the linkage plate, and the linkage plate engages with the threaded disc through the meshing teeth. Positioning keys are evenly installed on the top of the linkage plate, and the positions of the positioning keys correspond to the positions of the locking slots.

6. The long-distance vertical inclined ground chain conveyor device for pretreatment and spraying according to claim 4, characterized in that, The negative pressure adsorption module includes: The mounting brackets are symmetrically mounted on the annular shell; The outer sleeve is mounted on the mounting bracket. The outer end of the outer sleeve is open, and an air hole is provided at the bottom end of the outer sleeve. The inner slide cylinder is slidably mounted on the outer sleeve. A fourth spring connects the inner slide cylinder and the outer sleeve. The bottom end of the inner slide cylinder has two air holes, and the outer end of the inner slide cylinder has a suction cup. A sealing ring is fitted around the outer circumference of the inner sliding cylinder. The sealing ring slides up and down inside the outer sleeve. The sealing ring and the inner sliding cylinder are connected by a pulley system. An air pump is located below the baffle plate and is connected to air hole one and air hole two respectively through an air flow pipe. The negative pressure locking mechanism is located inside the inner slide cylinder.

7. The long-distance vertical inclined ground chain conveyor device for pretreatment and spraying according to claim 6, characterized in that, The negative pressure locking mechanism includes: An auxiliary component is installed on the outer periphery of the inner sliding cylinder. The auxiliary component slides with the outer sleeve through a sealing component. A pressure plate is slidably arranged inside the auxiliary component. A fifth spring connects the pressure plate and the auxiliary component. A snap-fit ​​component is slidably disposed in the inner slide cylinder, with one end of the snap-fit ​​component connected to the pressure plate; The inner wall of the outer sleeve is evenly provided with snap-fit ​​grooves, and the opening of the snap-fit ​​groove is chamfered. The snap-fit ​​component and the snap-fit ​​groove are snap-fitted together. The closure is mounted on the snap-fit ​​component, and the position of the closure corresponds to that of the vent.

8. The long-distance vertical inclined ground chain conveyor device for pretreatment and spraying according to claim 1, characterized in that, The slope stabilization module includes: The flip-up baffle is rotatably mounted in the mounting groove on the baffle plate; The counterweight is slidably positioned below the baffle plate. A sixth spring connects the counterweight to the baffle plate, and a connecting cable connects the counterweight to the tilting baffle.

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