Sanitation vehicle with automatic reel device

Abstract

The invention discloses a sanitation vehicle with an automatic reel device. The sanitation vehicle comprises a base fixedly installed on a vehicle body, a reel barrel rotationally installed on the base, a first driving assembly driving the reel barrel to rotate and a rubber pipe wound around the reel barrel. The first driving assembly is used for driving the rubber tube to move leftwards / rightwards, the rotary drums are used for clamping and positioning the rubber tube up and down, the guide blocks are rotatably mounted on the rotary drums, and the second driving assembly is used for driving the guide blocks to transversely move leftwards / rightwards and bears the power of the first driving assembly; the control module, the first driving assembly and the reel cylinder are arranged to cooperate with each other to automatically wind the rubber pipe, the wound rubber pipe is easily accumulated in a partial area of the reel cylinder, so that a group of rotating cylinders are designed to clamp and position the rubber pipe, and the second driving assembly and the guide block cooperate with each other to drive the rotating cylinders to rotate in the process of winding the rubber pipe by the reel cylinder; therefore, in the winding process of the rubber pipes, the wound rubber pipes can be evenly distributed on the reel cylinder.

Description

Technical Field

[0001] The invention discloses a sanitation vehicle with an automatic reel device, belonging to the technical field of sanitation vehicles. Background Art

[0002] As the country pays more and more attention to environmental protection, sanitation vehicles have become an indispensable equipment for urban sanitation. In sanitation operations, especially in cleaning, high-pressure washing and other tasks, hoses are widely used as key auxiliary tools. Most sanitation vehicles are equipped with a reel device to retract and release the hose during long-distance operations to ensure the smooth progress of the operation process. The hose reel design can effectively avoid the hose from being scattered, reduce potential safety hazards such as tripping and damage, and ensure the cleanliness and safety of the operation area.

[0003] However, most reel devices on the market still use manual rotation to control the retraction and release of the hose. Manual operation is not only time-consuming and labor-intensive, but also due to the lack of intelligent management, the recycling of the hose is often chaotic, prone to knotting and entanglement, resulting in a shortened service life of the hose, and it is also inconvenient for subsequent storage and maintenance. This manual operation method seriously affects work efficiency and brings greater labor intensity to operators, further affecting the overall effect of the operation.

[0004] Based on these problems, we need to design an intelligent, efficient and easy-to-operate hose reeling device. The equipment should be able to realize the retraction and release control of the hose through automation technology, avoiding the inconvenience caused by manual operation, while ensuring that the hose is neatly and efficiently stored to reduce the risk of hose damage. The design goal is to improve the operating efficiency of the equipment, reduce the labor intensity of the operator, extend the service life of the hose, and improve the overall efficiency of sanitation operations. With the country's increasing attention to environmental protection, sanitation vehicles have become an indispensable equipment for urban sanitation. Most sanitation vehicles are equipped with a reel device to store hoses for long-distance operations.

[0005] At present, the reel devices on the market generally use manual rotation to control the retraction and release of the hose. Manual operation is time-consuming and labor-intensive, and the hose is tangled and messy when it is recovered, which is inconvenient to store the hose. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention aims to provide a sanitation vehicle with an automatic reel device to solve the problems of the prior art.

[0007] In order to achieve the above object, the present invention is implemented through the following technical solutions: A sanitation vehicle with an automatic reel device comprises: a base mounted and fixed on a vehicle body, a reel drum rotatably mounted on the base, a first driving component driving the reel drum to rotate, and a rubber hose wound on the reel drum; A set of rotating drums for clamping and positioning the hose up and down, a guide block for rotatably mounting the rotating drum, and a second driving assembly for driving the guide block to move horizontally to the left / right, the second driving assembly receiving power from the first driving assembly; A control module, wherein the control module is electrically connected to the first drive assembly; The rotating drum is located on the side of the reel drum toward which the water outlet end of the hose faces, and the rotating drum is arranged parallel to the reel drum; The control module controls the first driving component to start, the first driving component drives the reel to reel up the hose, the second driving component controls the guide block to reciprocate left and right, and the rotating drum drives the hose to adjust the reel position on the reel from left to right / from right to left; Wherein, the rubber hose discharges the internal water flow through the squeezing of the two rotating drums.

[0008] As a further improvement, it also includes an adjustment assembly for driving the two rotating drums to move up and down, the adjustment assembly includes a group of adjustment plates installed on both sides of the rotating drum through a rotating shaft, the adjustment plates are bent outward to form a first mounting portion, and a bolt is installed on the first mounting portion; A vertically arranged support plate has a guide slot hole vertically arranged on the support plate corresponding to the bolt area, the bolt is inserted into the guide slot hole, and a nut is arranged on the side of the support plate away from the bolt. The bolt and the adjustment plate are moved up / down in the guide slot hole, and are fixed by the cooperation of the bolt and the nut, so that the distance between the two rotating drums is adjusted corresponding to the diameter of the hose.

[0009] As a further improvement, a rack is provided on one side of the guide groove, a gear ring is rotatably sleeved on the bolt, the gear ring matches the rack, and the number of teeth corresponding to the rack is marked on the support plate.

[0010] A through hole is arranged in the middle of the support sheet, and the rubber hose passes through the through hole and is inserted between the two rotating drums.

[0011] As a further improvement, the first drive assembly includes a motor fixedly mounted on the side of the base, the output shaft of the motor is inserted into the side of the reel, and the motor is electrically connected to the control module.

[0012] As a further improvement, the second driving assembly includes a first driven gear fixedly mounted on the output shaft, a second driven gear rotatably mounted on the side of the base, and a chain belt connecting the first driven gear and the second driven gear; A direction-changing threaded screw rod is inserted and fixed on the axis of the second driven gear, the direction-changing threaded screw rod passes through the interior of the guide block and is threadedly connected to the guide block; The first driven gear cooperates with the chain belt to transmit power, driving the second driven gear to drive the direction-changing threaded screw to rotate, thereby controlling the guide block to reciprocate left and right.

[0013] Wherein, the second driven gear and the motor are arranged on the same side.

[0014] As a further improvement, it also includes a guide rod arranged in parallel below the change-direction threaded screw, and both ends of the guide rod are fixedly mounted on the base.

[0015] As a further improvement, the interior of the drum is configured as a hollow structure, and a plurality of water outlet holes are arranged on the drum; A water flow input component is arranged on one side of the rotating drum, and an adaptive blocking component is arranged inside the rotating drum corresponding to the water outlet. When the rotating drum rotates slowly, the water outlet is blocked by the adaptive blocking component, and when the rotating drum rotates quickly, the water outlet is released, and the water input into the rotating drum by the water flow input component is output through the water outlet, and the water contacts the surface of the hose.

[0016] As a further improvement, the adaptive blocking assembly includes a cross bar fixedly installed inside the drum away from the water flow input assembly, a plurality of connecting strips fixedly installed on the cross bar, and a blocking block fixedly installed at the end of the connecting strip, wherein the blocking block corresponds to the position of the water outlet, and under normal conditions, the blocking block fits with the water outlet.

[0017] As a further improvement, the water flow input assembly includes an outer ring embedded in the adjusting plate, a middle ring welded on the side of the rotating drum facing the outer ring, and an inner ring connected to an external water pipe. The outer ring, the middle ring, and the inner ring are arranged in sequence from the outside to the inside, and balls are embedded between the outer ring and the middle ring, and between the middle ring and the inner ring. The rotating drum is positioned and fixed by the outer ring, the normal rotation of the rotating drum is maintained by the middle ring, and the external water pipe is prevented from rotating with the rotating drum by the inner ring.

[0018] As a further improvement, it also includes a water pressure detection module arranged inside the inner ring, and the water pressure detection module is electrically connected to the control module. Through the cooperation of the water pressure detection module and the control module, the water pressure inside the drum is adjusted.

[0019] The beneficial effects of the present invention are: The present invention automatically reels the hose by setting a control module, a first drive component and a reel. Since the reeled hose is easily accumulated in a partial area of ​​the reel, a group of rotating drums are designed to clamp and position the hose. The second drive component cooperates with the guide block to drive the rotating drum to move horizontally left and right during the process of the reel reeling the hose. Therefore, during the process of the hose reeling, the reeled hose can be evenly distributed on the reel.

[0020] However, since a lot of water is easily retained inside the hose, the reel is heavy after winding, which is inconvenient when it needs to be transported or replaced. When the hose is wound on the reel, the internal water flow is extruded by the two rotating drums, thereby reducing the amount of water retained inside the hose and reducing the overall weight.

[0021] Since the hose does not need to be completely drained of internal water when it is not replaced, the distance between the two drums is manually and precisely adjusted through the adjustment component to adjust the degree of squeezing of the hose. When in use, the hose needs to be pulled outward. Therefore, the distance between the two drums needs to be larger than the diameter of the hose, so as to facilitate the output of the hose and the hose will be fully supported by the internal water flow when it is outputting water to provide sufficient space.

[0022] However, when the hose is being wound, the squeezing of the hose by the two rotating drums will generate a certain amount of friction. In the early stage of winding the reel, its diameter is small. Therefore, the winding stroke of the hose is limited when the reel rotates one circle, which makes the rotating drum rotate slowly. When the reel is in the later stage of winding, the accumulated hose increases the overall diameter of the reel. Therefore, the winding stroke of the hose increases when the reel rotates one circle. The increased friction between the hose and the rotating drum easily pulls the hose and causes deformation. By setting an adaptive blocking component, when the rotating drum speed increases, under the action of centrifugal force, the connecting strip is deformed so that the blocking block at the end leaves the water outlet position, so that the water outlet is connected to the water flow inside the rotating drum, and the water flow inside the rotating drum is led out through the water outlet to contact the hose, thereby reducing the friction with the hose. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a three-dimensional structural schematic diagram of an automatic reel device of the present invention.

[0025] Figure 2 It is a partially enlarged structural schematic diagram of a sanitation vehicle with an automatic reel device according to the present invention.

[0026] Figure 3 yes Figure 2 A partial enlarged schematic diagram of the back side at A in the figure.

[0027] Figure 4 yes Figure 2 A schematic diagram of a partial enlargement of the cross section at point B in FIG.

[0028] Figure 5 It is a schematic diagram of the cross-sectional structure of the middle part of a rotating drum of the present invention.

[0029] Figure 6 It is a schematic diagram of module connection of a sanitation vehicle with an automatic reel device according to the present invention.

[0030] Figure 7 The present invention is a three-dimensional structural schematic diagram of a sanitation vehicle with an automatic reel device.

[0031] Description of the drawings: 1. Base; 2. Reel; 3. Hose; 4. Rotating drum; 5. Guide block; 6. Control module; 7. Adjusting plate; 71. First mounting part; 72. Bolt; 73. Support plate; 74. Guide slot; 75. Nut; 76. Rack; 77. Gear ring; 78. Marking; 79. Through hole; 21. Motor; 22. First driven gear; 23. Second driven gear; 24. Chain belt; 25. Variable thread screw; 26. Guide rod; 41. Hollow structure; 42. Water outlet; 43. Cross bar; 44. Connecting strip; 45. Blocking block; 46. Outer ring; 47. Middle ring; 48. Inner ring; 49. Ball; 481. Water pressure detection module; 482. Input pipe. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] Reference Figure 1-7 As shown, a sanitation vehicle with an automatic reel device comprises: A base 1 is mounted and fixed on a vehicle body 8, a reel 2 rotatably mounted on the base 1, a first driving component driving the reel 2 to rotate, and a hose 3 wound on the reel 2; A set of rotating drums 4 for clamping and positioning the hose 3 from top to bottom, a guide block 5 for rotatably mounting the rotating drum 4, and a second driving assembly for driving the guide block 5 to move horizontally to the left or right, wherein the second driving assembly receives power from the first driving assembly; A control module 6, wherein the control module 6 is electrically connected to the first drive assembly; The rotating drum 4 is located on the side of the reel drum 2 toward which the water outlet end of the hose 3 faces, and the rotating drum 4 is arranged parallel to the reel drum 2; The control module 6 controls the first driving component to start, the first driving component drives the reel 2 to reel the hose 3, the second driving component controls the guide block 5 to reciprocate left and right, and the rotating drum 4 drives the hose 3 to adjust the reel position on the reel 2 from left to right / from right to left; The rubber hose 3 discharges the internal water flow through the squeezing of the two rotating drums 4 .

[0035] Through the cooperation of the control module 6 and the first drive assembly, the reel 2 can be automatically started to reel the hose 3, avoiding the tedious manual operation and greatly improving the work efficiency. The user only needs to issue a command through the control module 6 to realize the automatic retraction and release of the hose 3, reducing the labor intensity of the operator.

[0036] The second driving assembly drives the guide block 5 to move horizontally, and the rotating drum 4 drives the hose 3 to adjust the winding position left and right, ensuring that the winding position of the hose 3 on the reel 2 is evenly distributed. This effectively avoids problems such as knotting and entanglement during the winding process of the hose 3, thereby extending the service life of the hose 3 and improving the working stability of the equipment.

[0037] Through the squeezing effect of the rotating drum 4, the water in the hose 3 can be discharged during the winding process, reducing the residual water inside the hose 3 and reducing the weight of the device after winding. In this way, it is not only easy to carry and replace, but also avoids the inconvenience of equipment caused by excessive water and the damage to the hose 3 caused by water accumulation.

[0038] The present invention automatically reels the rubber hose 3 by setting a control module 6, a first drive component and a reel 2. Since the reeled rubber hose 3 is easily accumulated in a partial area of ​​the reel 2, a group of rotating drums 4 are designed to clamp and position the rubber hose 3. The rotating drum 4 is driven by the second drive component and the guide block 5 to move horizontally left and right during the process of the reel 2 reeling the rubber hose 3. Therefore, during the process of the reel 2 reeling the rubber hose 3, the reeled rubber hose 3 can be evenly distributed on the reel 2.

[0039] Compared with the traditional manual or simple mechanical reel device in the prior art: Traditional reel devices usually rely on manual operation, which is prone to improper operation, entanglement or unevenness of the hose 3. However, this solution reduces the error of manual operation through automatic control, ensures efficient and neat retraction and release of the hose 3, and greatly improves the operating efficiency and stability of the equipment.

[0040] In the prior art, many reel devices do not consider the uniformity of the hose 3 during the reeling process, which easily leads to the accumulation or tangling of the hose 3. Our design ensures that the hose 3 is evenly distributed on the reel drum 2 through the cooperation of the rotating drum 4 and the guide block 5, thus avoiding this problem and extending the service life of the hose 3.

[0041] Traditional devices often ignore the discharge of water inside the hose 3, resulting in excessive water accumulation in the hose 3 when winding, increasing weight and affecting operation. However, our solution effectively discharges the water inside the hose 3 through the squeezing effect of the drum 4, reducing residual water, reducing the weight of the equipment, and improving ease of use.

[0042] Most of the existing technologies do not have intelligent control systems, which requires operators to frequently adjust mechanical devices or manual control. However, this solution uses intelligent management of the control module 6 to not only simplify the operation process, but also make precise adjustments according to different situations to ensure that the effect of each winding is in the best state.

[0043] The automated design and intelligent control greatly reduce the labor intensity of operators, allowing them to complete the task of retracting and releasing the hose 3 more easily and efficiently. Compared with traditional devices, operators do not need to spend a lot of time on manual operation, which reduces fatigue and improves overall operating efficiency.

[0044] Since a lot of water is easily retained inside the hose 3, the reel 2 is heavy after being wound up, which is inconvenient when it needs to be transported or replaced. When the hose 3 is wound on the reel 2, the internal water flow is extruded by the two rotating drums 4, thereby reducing the amount of water retained inside the hose 3 and reducing the overall weight.

[0045] Since the hose 3 does not need to be completely drained of internal water when it is not replaced, the distance between the two rotating drums 4 is manually and precisely adjusted through the adjustment component, thereby adjusting the degree of squeezing of the hose 3. When in use, the hose 3 needs to be pulled outward. Therefore, the distance between the two rotating drums 4 needs to be larger than the diameter of the hose 3, so as to facilitate the output of the hose 3 and when the hose 3 is outputting water, the hose 3 will be fully supported by the internal water flow to provide sufficient space.

[0046] In order to accurately adjust the distance between the two rotating drums 4, an adjustment assembly is also included to drive the two rotating drums 4 to move up and down. The adjustment assembly includes a group of adjustment plates 7 installed on both sides of the rotating drum 4 through a rotating shaft. The adjustment plates 7 are bent toward the outside to form a first mounting portion 71, and a bolt 72 is installed on the first mounting portion 71. A vertically arranged support plate 73 has a guide slot 74 vertically arranged on the support plate 73 corresponding to the area of ​​the bolt 72, the bolt 72 is inserted into the guide slot 74, and a nut 75 is arranged on the side of the support plate 73 away from the bolt 72. The bolt 72 and the adjustment plate 7 are moved upward / downward in the guide slot 74, and are fixed by the cooperation of the bolt 72 and the nut 75, so as to adjust the distance between the two rotating drums 4 according to the diameter of the hose 3.

[0047] As a further improvement, a rack 76 is provided on one side of the guide groove, and a toothed ring 77 is rotatably sleeved on the bolt 72, the toothed ring matches the rack 76, and a mark 78 is provided on the support plate 73 corresponding to the number of teeth of the rack 76.

[0048] By adding an adjustment component that drives the two rotating drums 4 to move up and down, its core function is to adjust the distance between the rotating drums 4 to adapt to different diameters of the hose 3. The adjustment component cooperates with the adjustment piece 7 and the bolt 72 so that the distance between the two rotating drums 4 can be accurately adjusted according to the diameter of the hose 3.

[0049] Through the cooperation of the bolt 72 and the adjusting piece 7, the distance between the rotating drums 4 can be controlled very accurately, ensuring that the hose 3 can be firmly clamped between the rotating drums 4 to prevent loosening or uneven winding, thereby extending the service life of the hose 3.

[0050] According to the different specifications of the hose 3, the distance between the rotating drum 4 can be conveniently adjusted, so that the equipment has higher adaptability and flexibility.

[0051] The specific adjustment method is that the adjustment plate 7 cooperates with the bolt 72 and nut 75 on the support plate 73, and the guide slot 74 is designed to allow the drum 4 to move in the vertical direction (up and down direction). The entire adjustment process is very simple. The operator only needs to rotate the bolt 72 to complete the precise adjustment of the spacing of the drum 4, which greatly improves the user experience. Benefits include: Through the cooperation of the bolt 72 and the nut 75, the adjustment can be completed without complicated tools, which greatly simplifies the operation process. When the adjustment is completed, the fixing of the bolt 72 and the nut 75 can ensure that the spacing of the drum 4 will not loosen during the operation, ensuring the stability of the operation.

[0052] In order to improve the adjustment accuracy, the coordination between the rack 76 and the gear ring 77 is introduced to achieve more precise control.

[0053] By arranging a rack 76 on one side of the guide groove and installing a toothed ring 77 on the bolt 72, the combination of the gear and the rack 76 can make the adjustment process smoother and more accurate. The advantages of the combined design of the rack 76 and the toothed ring 77 are: The meshing of the rack 76 and the toothed ring 77 can provide a smoother adjustment process, so that the drum 4 moves more evenly and without gaps, avoiding the problem of unsmooth sliding in traditional designs. The presence of the rack 76 helps reduce errors in the adjustment process and ensures precise control.

[0054] The number of teeth 78 is marked on the rack 76 so that the operator can intuitively see the amount of each adjustment, thereby more accurately controlling the spacing of the drum 4, further improving the accuracy and controllability of the adjustment.

[0055] Through the design of the adjustment sheet 7 and the support sheet 73, the user can easily adjust the spacing of the drum 4 to adapt to the different diameters of the hose 3. The combination of the guide groove, the rack 76 and the gear ring 77 makes the entire adjustment process more accurate and more adaptable. This is a very practical function for environments with a wide variety of hoses 3 and different diameters.

[0056] During long-term use, the meshing of the rack 76 and the toothed ring 77 provides a more stable and long-term adjustment method than the ordinary bolt 72 adjustment, which can effectively avoid the problems of the bolt 72 loosening, getting stuck or not adjusting smoothly, thereby ensuring the reliability of the device during long-term use.

[0057] For adaptability design, a through hole 79 is provided in the middle of the support sheet 73 , and the rubber hose 3 passes through the through hole 79 and is inserted between the two rotating drums 4 .

[0058] As a further improvement, the first driving assembly includes a motor 21 fixedly mounted on the side of the base 1 , the output shaft of the motor 21 is inserted into the side of the reel 2 , and the motor 21 is electrically connected to the control module 6 .

[0059] As a further improvement, the second driving assembly includes a first driven gear 22 fixedly mounted on the output shaft, a second driven gear 23 rotatably mounted on the side of the base 1, and a chain belt 24 connecting the first driven gear 22 and the second driven gear 23; A direction-changing threaded screw 25 is inserted and fixed on the axis of the second driven gear 23, and the direction-changing threaded screw 25 passes through the interior of the guide block 5 and is threadedly connected to the guide block 5; The first driven gear 22 cooperates with the chain belt 24 to transmit power, driving the second driven gear 23 to drive the direction-changing threaded screw 25 to rotate, thereby controlling the guide block 5 to reciprocate left and right.

[0060] The second driven gear 23 and the motor 21 are arranged on the same side.

[0061] The first drive assembly includes a motor 21 and an output shaft, and the motor 21 directly drives the reel 2 through its output shaft. The electric drive of the motor 21 ensures the high efficiency and stability of power transmission. Through the electrical connection of the control module 6, the motor 21 can accurately control the operation of the reel 2, and achieve precise control and regulation.

[0062] The motor 21 serves as a power source and provides strong and stable power output, so that the reel 2 can work quickly and smoothly, thereby improving work efficiency.

[0063] The second drive assembly uses a combination of gears and chain belt 24 to transmit power from the first driven gear 22 to the second driven gear 23, and then drives the left and right reciprocating motion of the guide block 5 through the reversing threaded screw 25. The combination of chain belt 24 and gears can smoothly transmit power and reduce the vibration and noise that may be generated when the gears are engaged. The use of chain belt 24 ensures efficient power transmission, while reducing system wear and extending the life of the system.

[0064] The design of the gear and chain belt 24 allows the system to achieve power transmission in a smaller space, greatly reducing the volume and making the equipment layout more compact and flexible. The combination of chain belt 24 and gears can achieve higher transmission efficiency, ensure timely power transmission, and is suitable for scenarios requiring precise operation.

[0065] In addition, the combined design of the variable-direction threaded screw 25 and the guide block 5 enables the device to achieve precise reciprocating motion in the left and right directions. The variable-direction threaded screw 25 controls the movement of the guide block 5 by transmitting power. Through the cooperation of the variable-direction threaded screw 25 and the guide block 5, the movement of the guide block 5 can be effectively controlled to ensure its precise movement in the left and right directions. This is crucial for devices that require high precision and guarantees the stability of operation.

[0066] The core of the variable-direction threaded screw 25 (variable-lead threaded screw) is that through the sudden change or periodic change of the thread geometry, when the screw rotates unidirectionally, it forces the linear movement direction of the guide block 5 (or nut 75) to automatically reverse. Its principle can be divided into two categories: Direction sudden-change type: The thread helix direction alternates (such as left-handed → right-handed → left-handed), and the movement direction is directly changed through the helix direction switch.

[0067] Lead gradual-change type: The lead (pitch) of the thread changes periodically (such as a sinusoidal wave-shaped lead), and the direction change is indirectly induced through the increase or decrease of the lead.

[0068] (1) Double-lead variable-direction screw (left-handed + right-handed alternation): The screw is divided into multiple segments, and the helix direction of each segment alternates (for example, left-handed thread segment → right-handed thread segment → left-handed thread segment). The helix direction junction of each segment of the thread is designed with a sharp transition or a smooth transition (which needs to cooperate with the structure of the guide block 5).

[0069] Movement process: When the screw rotates unidirectionally, the guide block 5 moves along the helix direction of the current thread segment. When the guide block 5 reaches the helix direction junction point, the thread helix direction suddenly changes, and the guide block 5 is forced to move in the reverse direction. Transition zone strength: Stress concentration is likely to occur at the helix direction junction, and the stress needs to be reduced through fillets or chamfers. Mechanical stop blocks are set at both ends of the screw to prevent the guide block 5 from disengaging from the thread segment.

[0070] (2) Wavy variable-lead screw (sinusoidal wave lead): The lead of the screw thread of the screw changes continuously according to a periodic function (such as a sinusoidal wave), and the lead formula is: P(x)=P0+Asin(2πx / λ); where P0 is the average lead, A is the lead amplitude, and λ is the wavelength. The lead change amplitude needs to satisfy A < P0 to avoid thread self-locking.

[0071] Movement process: When the screw rotates unidirectionally, the moving speed of the guide block 5 increases and decreases periodically due to the lead change. When the lead changes to an extreme value (maximum or minimum), the speed of the guide block 5 drops to zero and accelerates in the reverse direction, forming a reciprocating motion.

[0072] In this embodiment, a double-lead reversing screw is used. Since the reversing threaded screws 25 are all existing commercially available products, the reversing threaded screws 25 of this application are directly purchased and used, and thus no further introduction is given.

[0073] In order to ensure the stable movement of the guide block 5 and maintain its stable orientation, a guide rod 26 is also provided below the direction-changing threaded screw 25, and both ends of the guide rod 26 are fixedly mounted on the base 1. The guide rod 26 cooperates with the guide block 5 to reciprocate left and right, so that the stable orientation of the top of the guide block 5 can be ensured.

[0074] When the hose 3 is in the process of winding, the two rotating drums 4 will produce a certain friction force on the hose 3. In the early stage of winding the reel 2, its diameter is small, so the reel 2 rotates one circle, and the reel 3 has a limited reeling stroke, which makes the rotating drum 4 rotate slowly. When the reel 2 is in the late stage of winding, the accumulated hose 3 increases the overall diameter of the reel 2. Therefore, the reel 2 rotates one circle, and the reeling stroke of the hose 3 increases. The increased friction between the hose 3 and the rotating drum 4 is easy to pull the hose 3 and cause deformation. By setting an adaptive blocking component, when the rotating drum 4 speed increases, under the action of centrifugal force, the connecting strip 44 is deformed so that the blocking block 45 at the end leaves the water outlet 42 position, so that the water outlet 42 is connected with the water flow inside the rotating drum 4, and the water flow inside the rotating drum 4 is led out through the water outlet 42 to contact the hose 3, thereby reducing the friction with the hose 3.

[0075] In order to accurately control the water flow, the interior of the drum 4 is configured as a hollow structure 41, and a plurality of water outlet holes 42 are arranged on the drum 4; A water flow input component is arranged on one side of the rotating drum 4, and an adaptive blocking component is arranged inside the rotating drum 4 corresponding to the water outlet hole 42. When the rotating drum 4 rotates slowly, the water outlet hole 42 is blocked by the adaptive blocking component. When the rotating drum 4 rotates quickly, the water outlet hole 42 is released, and the water flow input into the rotating drum 4 by the water flow input component is output through the water outlet hole 42, and the water flow contacts the surface of the hose 3.

[0076] As a further improvement, the adaptive blocking assembly includes a cross bar 43 fixedly installed inside the drum 4 away from the water flow input assembly, a plurality of connecting strips 44 fixedly installed on the cross bar 43, and a blocking block 45 fixedly installed at the end of the connecting strip 44, wherein the blocking block 45 corresponds to the position of the water outlet 42, and under normal conditions, the blocking block 45 fits with the water outlet 42.

[0077] By arranging a plurality of water outlets 42 in the drum 4, the water flow needs to be controlled in different ways at different rotation speeds of the drum 4. When the drum 4 rotates slowly, the water outlets 42 need to be blocked to prevent the water from flowing out too quickly, so that the water flow can be evenly distributed inside the drum 4; and when the drum 4 rotates quickly, the water outlets 42 are released to allow the water flow to flow out smoothly, ensuring efficient use of the water flow.

[0078] By intelligently controlling the blocking and releasing of the water outlet 42 according to the rotation speed of the drum 4, the output volume and flow rate of the water flow can be effectively adjusted to avoid waste or unnecessary losses caused by excessive water flow.

[0079] The adaptive blocking assembly is used, especially by controlling the position of the blocking block 45 through the fixed crossbar 43 and the connecting strip 44, so that the blocking state of the water outlet 42 can be adjusted according to the rotation speed of the drum 4. The blocking block 45 fits with the water outlet 42 to block the water flow under normal conditions, ensuring that the water flow can smoothly enter the drum 4 and be output through the water outlet 42 at an appropriate rotation speed.

[0080] The blocking block 45 can automatically adapt to the low and high speed rotation, ensuring the flexibility and efficiency of the system at different rotation speeds. The blocking block 45 can also effectively prevent water from leaking when it is not needed.

[0081] By controlling the input and output of the water flow, especially releasing the water outlet 42 when the drum 4 rotates rapidly, it is possible to ensure that the water flow is released evenly and in a timely manner. This control strategy can better match the working requirements of the drum 4 and avoid the problem of too much or too little water flow.

[0082] By intelligently adjusting the blocking state of the water outlet 42 in combination with the rotation speed of the drum 4, water flow control can be optimized at different rotation speeds, ensuring effective use of water flow, avoiding waste, improving system efficiency, and improving the durability and stability of the equipment.

[0083] The blocking block 45 is made of rubber material, and the connecting strip 44 can be made of a 0.1 mm metal sheet or a 1 mm rubber strip with good elasticity.

[0084] As a further improvement, the water flow input assembly includes an outer ring 46 embedded in the adjusting plate 7, a middle ring 47 welded to the side of the rotating drum 4 facing the outer ring 46, and an inner ring 48 connected to an external water pipe. The outer ring 46, the middle ring 47, and the inner ring 48 are arranged in sequence from the outside to the inside, and balls 49 are embedded between the outer ring 46 and the middle ring 47, and between the middle ring 47 and the inner ring 48. The rotating drum 4 is positioned and fixed by the outer ring 46, the middle ring 47 is used to maintain the normal rotation of the rotating drum 4, and the inner ring 48 is used to prevent the external water pipe from rotating with the rotating drum 4.

[0085] It also includes a water pressure detection module 481 disposed inside the inner ring 48 . The water pressure detection module 481 is electrically connected to the control module 6 . The water pressure inside the drum 4 is adjusted through the cooperation between the water pressure detection module 481 and the control module 6 .

[0086] The multi-layer structure design of the outer ring 46, the middle ring 47, and the inner ring 48 realizes precise positioning and rotation control through the balls 49 embedded between the rings. The outer ring 46 is used to fix the position of the drum 4, the middle ring 47 is used to ensure the smooth rotation of the drum 4, and the inner ring 48 keeps the external water pipe from rotating with the drum 4.

[0087] To achieve precise positioning, the outer ring 46 ensures the stable position of the drum 4, avoiding the possible deviation or instability of the drum 4 during rotation. The cooperation between the middle ring 47 and the ball 49 enables the drum 4 to rotate smoothly, reducing friction and wear, thereby extending the service life of the equipment. The inner ring 48 effectively prevents the water pipe from rotating unnecessarily with the rotation of the drum 4, ensuring the stable delivery of water.

[0088] The design of the inner ring 48 connected to the external water pipe ensures the stable input of water flow, while the cooperation of the outer ring 46 and the middle ring 47 allows the drum 4 to rotate freely without interfering with the input process of water flow. The multi-ring structure of the water flow input component optimizes the guidance and input process of water flow, can effectively avoid the leakage or instability of water flow, and enables the water flow to accurately enter the drum 4, thereby improving the flow control accuracy of the entire system.

[0089] By setting a water pressure detection module 481 inside the inner ring 48 and electrically connecting it to the control module 6, the water pressure state inside the drum 4 is monitored in real time through the water pressure detection module 481, thereby adjusting the water pressure inside the drum 4.

[0090] When there is a lot of external sediment, the water pressure can be increased to increase the outflow of water. When there is less external sediment, the water pressure can be reduced to reduce the outflow of water.

[0091] It should be noted that the device structure and the drawings of the present invention mainly describe the principle of the present invention. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above invention, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field. The standard parts used therein can all be purchased from the market and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0092] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sanitation vehicle with an automatic reel device, characterized in that: include: A base (1) mounted and fixed on a vehicle body (8), a reel (2) rotatably mounted on the base (1), a first drive assembly driving the reel (2) to rotate, and a rubber hose (3) wound around the reel (2); A set of rotating drums (4) for clamping and positioning the rubber hose (3) from top to bottom, a guide block (5) for rotatably mounting the rotating drum (4), and a second driving assembly for driving the guide block (5) to move horizontally to the left or right, the second driving assembly receiving power from the first driving assembly; A control module (6), the control module (6) being electrically connected to the first drive assembly; The rotating drum (4) is located on the side of the reel drum (2) toward which the water outlet end of the hose (3) faces, and the rotating drum (4) is arranged parallel to the reel drum (2); The control module (6) controls the first drive component to start, the first drive component drives the reel (2) to reel in the rubber hose (3), the second drive component controls the guide block (5) to reciprocate left and right, and the rotating drum (4) drives the rubber hose (3) to adjust the reel position on the reel (2) from left to right / from right to left; The rubber hose (3) discharges the internal water flow through the squeezing of the two rotating drums (4).

2. The sanitation vehicle with an automatic reel device according to claim 1, characterized in that: It also includes an adjustment component for driving the two rotating drums (4) to move up and down, the adjustment component including a group of adjustment plates (7) mounted on both sides of the rotating drum (4) via a rotating shaft, the adjustment plates (7) being bent outward to form a first mounting portion (71), and a bolt (72) being mounted on the first mounting portion (71); A support plate (73) is arranged vertically, and a guide slot (74) is arranged vertically on the support plate (73) in a region corresponding to the bolt (72). The bolt (72) is inserted into the guide slot (74), and a nut (75) is arranged on the side of the support plate (73) away from the bolt (72). The bolt (72) and the adjustment plate (7) move upward / downward in the guide slot (74), and are fixed by the cooperation of the bolt (72) and the nut (75), so that the distance between the two rotating drums (4) is adjusted corresponding to the diameter of the rubber hose (3).

3. The sanitation vehicle with an automatic reel device according to claim 2, characterized in that: A rack (76) is provided on one side of the guide slot (74), a toothed ring (77) is rotatably sleeved on the bolt (72), the toothed ring (77) matches the rack (76), and a marking (78) is provided on the support sheet (73) corresponding to the number of teeth of the rack (76); A through hole (79) is provided in the middle of the support sheet (73), and the rubber hose (3) passes through the through hole (79) and is inserted between the two rotating drums (4).

4. A sanitation vehicle with an automatic reel device according to claim 2 or 3, characterized in that: The first driving assembly comprises a motor (21) fixedly mounted on a side of the base (1), an output shaft of the motor (21) being inserted into a side of the reel (2), and the motor (21) being electrically connected to a control module (6).

5. The sanitation vehicle with an automatic reel device according to claim 4, characterized in that: The second driving assembly comprises a first driven gear (22) fixedly mounted on the output shaft, a second driven gear (23) rotatably mounted on the side of the base (1), and a chain belt (24) connecting the first driven gear (22) and the second driven gear (23); a direction-changing threaded screw (25) inserted and fixed on the axis of the second driven gear (23), the direction-changing threaded screw (25) passing through the interior of the guide block (5) and being threadedly connected to the guide block (5); The first driven gear (22) cooperates with the chain belt (24) to transmit power, driving the second driven gear (23) to drive the direction-changing threaded screw (25) to rotate, thereby controlling the guide block (5) to move back and forth left and right.

6. The sanitation vehicle with an automatic reel device according to claim 5, characterized in that: It also includes a guide rod (26) arranged in parallel below the direction-changing threaded screw rod (25), with both ends of the guide rod (26) fixedly mounted on the base (1).

7. A sanitation vehicle with an automatic reel device according to claim 2 or 6, characterized in that: The interior of the rotating drum (4) is arranged as a hollow structure (41), and a plurality of water outlet holes (42) are arranged on the rotating drum (4); A water flow input component is arranged on one side of the rotating drum (4), and an adaptive blocking component is arranged inside the rotating drum (4) corresponding to the water outlet hole (42). When the rotating drum (4) rotates slowly, the adaptive blocking component blocks the water outlet hole (42). When the rotating drum (4) rotates quickly, the water outlet hole (42) is released, and the water flow input into the rotating drum (4) by the water flow input component is output through the water outlet hole (42), and the water flow contacts the surface of the rubber hose (3).

8. The sanitation vehicle with an automatic reel device according to claim 7, characterized in that: The adaptive blocking component comprises a cross bar (43) fixedly mounted inside the drum (4) away from the water flow input component, a plurality of connecting strips (44) fixedly mounted on the cross bar (43), and a blocking block (45) fixedly mounted at the end of the connecting strip (44), wherein the blocking block (45) corresponds to the position of the water outlet hole (42), and under normal conditions, the blocking block (45) fits the water outlet hole (42).

9. The sanitation vehicle with an automatic reel device according to claim 7, characterized in that: The water flow input assembly comprises an outer ring (46) embedded in the adjusting plate (7), a middle ring (47) welded to the side of the rotating drum (4) facing the outer ring (46), and an inner ring (48) connected to an external water pipe. The outer ring (46), the middle ring (47), and the inner ring (48) are arranged in sequence from the outside to the inside. Balls (49) are embedded between the outer ring (46) and the middle ring (47), and between the middle ring (47) and the inner ring (48). The rotating drum (4) is positioned and fixed by the outer ring (46), the middle ring (47) is used to maintain the normal rotation of the rotating drum (4), and the inner ring (48) is used to prevent the external water pipe from rotating with the rotating drum (4).

10. The sanitation vehicle with an automatic reel device according to claim 9, characterized in that: It also includes a water pressure detection module (481) arranged inside the inner ring (48), wherein the water pressure detection module (481) is electrically connected to the control module (6), and the water pressure inside the rotating drum (4) is adjusted through the cooperation between the water pressure detection module (481) and the control module (6).

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