A hose retraction device for cleaning vacuum trucks

Abstract

This utility model discloses a hose retraction device for a vacuum cleaning truck, including a base mounted on the vacuum truck. The base houses a drive mechanism, a hose retraction mechanism, and a lifting mechanism. The hose retraction mechanism includes a winding drum. The drive mechanism retracts the hose by driving the drum to rotate. The lifting mechanism includes several connecting rods for lifting the hose. The drive mechanism drives the connecting rods to rotate, causing them to impact the hose and induce vibration. This utility model achieves hose retraction by driving the drum to rotate. During this process, the continuously rotating connecting rods also continuously strike the hose, causing it to vibrate and expel surface dirt, residual water, and impurities, thus thoroughly and effectively cleaning the hose.

Description

Technical Field

[0001] This utility model relates to the field of sewage suction truck hose retraction technology, and in particular to a hose retraction device for cleaning sewage suction trucks. Background Technology

[0002] The cleaning and vacuum truck is a special-purpose vehicle that integrates high-pressure cleaning and vacuum suction functions. It has the functions of high-pressure cleaning, vacuum suction, and combined cleaning and suction operations. It is mainly used for cleaning, dredging, and sewage treatment of municipal sanitation facilities such as urban sewers, rainwater wells, and septic tanks.

[0003] Vacuum trucks are typically equipped with high-pressure water pumps and hoses for high-pressure cleaning. They also use reels to store and deploy the hoses for ease of operation and storage. When retracting the hose after use, any residual water must be drained to prevent the accumulation of impurities, algae, or microorganisms, which can affect the hose's flow, lifespan, and hygiene. This is especially important in winter, as residual water can freeze and expand, potentially cracking the hose's inner wall and causing damage. Draining the hose also reduces its weight, making reeling easier and reducing the mechanical load on the reel or support.

[0004] A search revealed Chinese utility model patent CN222593108U, which discloses a hose reel device for a vacuum truck. The device includes a main body and a hose reel module disposed within the main body. It also includes a cleaning assembly disposed on one side of the main body. The cleaning assembly includes a through pipe disposed on one side of the main body, with two connecting pipes fixedly connected inside the through pipe. A rotating ring is slidably connected inside the connecting pipe, and a connecting ring is fixedly connected inside the rotating ring. This application cleans the hose during the hose reel retraction process using a scraper and a spring. However, this only cleans the surface of the hose; it is insufficient to effectively remove residual water and impurities inside the hose. Utility Model Content

[0005] In view of the above-mentioned prior art, the present invention provides a hose retraction device for a cleaning and vacuuming truck, and the main technical problem to be solved is how to clean the water pipe fully and effectively during the hose retraction process.

[0006] To achieve the above objectives, the technical solution of this utility model embodiment is implemented as follows:

[0007] A hose retraction device for a vacuum cleaning truck includes a base mounted on the vacuum truck. The base is equipped with a drive mechanism, a hose reeling mechanism, and a lifting mechanism. The hose reeling mechanism includes a winding drum. The drive mechanism drives the winding drum to rotate to reel in the hose. The lifting mechanism includes several connecting rods for lifting the hose. The drive mechanism drives the connecting rods to rotate to impact the hose and induce vibration.

[0008] Furthermore, the base is U-shaped, and a rotating shaft is rotatably connected at the top between the inner walls on both sides of the base, with the cylinder fixedly connected to the outside of the rotating shaft.

[0009] Furthermore, baffles are fixedly connected to both outer sides of the winding cylinder, and collars are fixedly connected to the top inner side of the baffles.

[0010] Furthermore, the drive mechanism includes a motor fixedly connected to the base, and one end of the motor's output shaft is connected to a drive wheel via a key.

[0011] Furthermore, a driven wheel is connected to one end of the rotating shaft via a key, and the driving wheel meshes with the driven wheel. The diameter of the driving wheel is smaller than the diameter of the driven wheel.

[0012] Furthermore, support plates are fixedly connected to the middle of both ends of one side of the base, and a connecting shaft is rotatably connected between the two support plates.

[0013] Furthermore, pulleys are connected by keys at one end of the connecting shaft and at the outside of the motor output shaft, and the same belt is fitted over the outside of the two pulleys.

[0014] Furthermore, the connecting shaft is externally fixedly connected to two side plates, and several connecting rods are equidistantly fixedly connected to the outer side between the two side plates.

[0015] Furthermore, a sleeve is fitted on the outer side of the baffle, and a threaded through hole is opened on one side of the sleeve. A bolt is threadedly connected to the sleeve at the threaded through hole, and a clamp is rotatably connected to the other side of the sleeve through a damping shaft.

[0016] Furthermore, the jacket and collar are located on two separate baffles.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1. This application achieves the retraction of water pipes by driving the drum to rotate. During this process, several continuously rotating connecting rods can continuously strike the water pipe, thereby causing the water pipe to vibrate and promote the discharge of dirt on its surface as well as residual water and impurities inside, thus cleaning the water pipe thoroughly and effectively.

[0019] 2. The motor drives the connecting rod to rotate via a belt and pulley, ensuring that the connecting rod has a high rotation speed, thereby striking the water pipe at a higher frequency to generate vibration and expel residual water and impurities. The motor drives the larger driven wheel with a smaller diameter to rotate, which slows down the rotation of the drum, ensuring that the process of pulling the water pipe to rewind it will not cause surface abrasion and damage due to high-speed dragging.

[0020] 3. By setting up a sleeve, the sleeve can be installed at the edge of the baffle using bolts, and the end of the water pipe can be fixed by a clamp. Therefore, after the water pipe is wound onto the drum, its two free ends can be fixed to ensure the stability of the water pipe and prevent it from falling off due to shaking during the operation of the vacuum truck or bumps on the road. Attached Figure Description

[0021] Figure 1 This is a perspective view of a hose retraction device for a cleaning and vacuuming truck according to Embodiment 1 of this application;

[0022] Figure 2 This is a side view of the driven wheel of a hose retraction device for a cleaning vacuum truck according to Embodiment 1 of this application;

[0023] Figure 3 This is a schematic diagram of the jacket structure of a hose retraction device for a cleaning and vacuuming truck according to Embodiment 1 of this application.

[0024] Explanation of icon numbers:

[0025] 1. Base, 2. Motor, 3. Drive wheel, 4. Support plate, 5. Connecting shaft, 6. Pulley, 7. Belt, 8. Connecting rod, 9. Side plate, 10. Winding cylinder, 11. Baffle, 12. Driven wheel, 13. Rotating shaft, 14. Jacket, 15. Bolt, 16. Clamp. Detailed Implementation

[0026] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the utility model.

[0027] Example 1

[0028] See attached document Figure 1-2 This application provides a hose retraction device for a cleaning vacuum truck, including a base 1 installed on the vacuum truck. The base 1 is provided with a drive mechanism, a hose retraction mechanism and a lifting mechanism. The hose retraction mechanism includes a winding drum 10. The drive mechanism drives the winding drum 10 to rotate to retract the hose. The lifting mechanism includes several connecting rods 8 for lifting the hose. The drive mechanism drives the connecting rods 8 to rotate to impact the hose to cause vibration, thereby discharging residual water and impurities inside.

[0029] Preferably, the base 1 is U-shaped, and a rotating shaft 13 is rotatably connected to the top end between the inner walls of the two sides of the base 1. The winding cylinder 10 is fixedly connected to the outside of the rotating shaft 13. Baffles 11 are fixedly connected to both sides of the outside of the winding cylinder 10. The baffles 11 can limit the axial length of the water pipe when it is wound outside the winding cylinder 10, so as to ensure that the winding is more concentrated. A collar 1101 is fixedly connected to the top end of the inner side of the baffle 11. After one end of the water pipe is inserted into the collar 1101 for fixation, the rotation of the winding cylinder 10 can pull the water pipe to realize the winding and recycling.

[0030] This application is used on a vacuum truck. When it is necessary to retract the water pipe, one of its free ends can be inserted into the collar 1101 for fixation, and then the water pipe body can be mounted on the connecting rod 8.

[0031] Preferably, the drive mechanism includes a motor 2 fixedly connected to the base 1, and a drive wheel 3 is connected to one end of the output shaft of the motor 2 via a key. A driven wheel 12 is connected to the outer end of the rotating shaft 13 via a key, and the drive wheel 3 meshes with the driven wheel 12.

[0032] When winding up the water pipe, the motor 2 can be started. The motor 2 drives the driven wheel 12 to rotate through the driving wheel 3. The driven wheel 12 drives the rotating shaft 13 to rotate. The rotating shaft 13 drives the winding drum 10 to rotate, which can pull the water pipe and wind it up to its own exterior.

[0033] Preferably, support plates 4 are fixedly connected to the middle of both ends of one side of the base 1. The height of the support plates 4 is lower than that of the winding cylinder 10. Therefore, the water pipe wound on the winding cylinder 10 will inevitably hang down outside the connecting rod 8 due to its own weight. Thus, the rotation of the connecting rod 8 will inevitably hit the water pipe and cause it to vibrate. A connecting shaft 5 is rotatably connected between the two support plates 4. A pulley 6 is connected to the outer end of the connecting shaft 5 and the outer end of the output shaft of the motor 2 by a key. The two pulleys 6 are fitted with the same belt 7.

[0034] Preferably, the connecting shaft 5 is externally fixedly connected to two side plates 9, and several connecting rods 8 are equidistantly fixedly connected to the outer side between the two side plates 9. The connecting rods 8 are covered with a protective sleeve made of wood pulp cotton. The protective sleeve can act as a pad between the connecting rods 8 and the water pipe, preventing the connecting rods 8 from continuously hitting the water pipe and causing damage to its surface. In addition, while the connecting rods 8 are hitting, they will also use the protective sleeve to wipe the bottom surface of the water pipe, thus cleaning the bottom surface of the water pipe that is easily contaminated with dirt when it is dragged.

[0035] At the same time, the motor 2 can also drive the connecting shaft 5 to rotate through the belt 7 and two pulleys 6. The connecting shaft 5 can cause the connecting rod 8 to rotate through the side plate 9, thereby continuously striking the water pipe on its surface to cause the water pipe to vibrate and discharge the residual water and impurities inside.

[0036] During this process, the water pipe will naturally sag due to its own weight. Therefore, even if the connecting rod 8 continuously strikes the water pipe, the water pipe will not completely detach from the connecting rod 8. This ensures that the water pipe continues to vibrate during the winding process, thereby ensuring that residual water and impurities are fully discharged.

[0037] Preferably, the diameter of the driving wheel 3 is smaller than the diameter of the driven wheel 12.

[0038] Furthermore, since the small-diameter driving wheel 3 has a deceleration effect when driving the large-diameter driven wheel 12, the rotation speed of the rotating shaft 13 will be lower than that of the connecting shaft 5. That is, the connecting rod 8 will rotate at a faster speed than the winding cylinder 10. This can reduce the speed at which the water pipe is dragged when the winding cylinder 10 winds up the water pipe, so as to avoid excessive abrasion or even damage to its surface. On the other hand, it can also ensure the frequency of the connecting rod 8 striking the water pipe, so that the vibration of the water pipe can smoothly discharge residual water and impurities.

[0039] Example 2

[0040] See attached document Figure 3 This application provides a hose retraction device for a cleaning and vacuuming truck. Compared with embodiment 1, in order to ensure the stability of hose retraction, a sleeve 14 is provided on the outer side of the baffle 11. A threaded through hole is provided on one side of the sleeve 14. A bolt 15 is threadedly connected to the sleeve 14 at the threaded through hole. A clamp 16 is rotatably connected to the other side of the sleeve 14 through a damping shaft.

[0041] Preferably, the jacket 14 and the collar 1101 are located on the two baffles 11 respectively.

[0042] After the water pipe is fully wound up by the rotation of the winding drum 10, the clamp 14 can be fastened to the edge of the baffle 11 at the position closest to the end of the water pipe, depending on the position of the free end of the water pipe. The bolt 15 is then turned to fix the clamp 14. The clamp 16 is then used to fix the free end of the water pipe. Therefore, it can cooperate with the collar 1101 to fix both ends of the water pipe, thereby ensuring the stability of the water pipe after it is wound on the winding drum 10.

[0043] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. The protection scope of this utility model shall be determined by the protection scope of the claims.

Claims

1. A pipe winding and retraction apparatus for cleaning a sewerage suction vehicle, comprising a base (1) arranged on the suction vehicle, characterized in that, The base (1) is provided with a drive mechanism, a tube winding mechanism and a lifting mechanism. The tube winding mechanism includes a winding cylinder (10). The drive mechanism drives the winding cylinder (10) to rotate to wind up the water pipe. The lifting mechanism includes several connecting rods (8) for lifting the water pipe. The drive mechanism drives the connecting rods (8) to rotate to impact the water pipe to cause shaking.

2. The hose retraction device for a cleaning and vacuuming truck according to claim 1, characterized in that, The base (1) is U-shaped, and a rotating shaft (13) is rotatably connected at the top between the inner walls on both sides of the base (1). The winding cylinder (10) is fixedly connected to the outside of the rotating shaft (13).

3. A reel pipe-retrieving apparatus for a sewer cleaning vehicle according to claim 2, wherein Baffles (11) are fixedly connected to both sides of the outer side of the winding cylinder (10), and a collar (1101) is fixedly connected to the top inner side of the baffle (11).

4. A reel pipe-retrieving apparatus for a sewer cleaning vehicle according to claim 2, wherein The drive mechanism includes a motor (2) fixedly connected to the base (1), and one end of the output shaft of the motor (2) is connected to a drive wheel (3) via a key.

5. A reel pipe-retrieving apparatus for a sewer cleaning vehicle according to claim 4, wherein A driven wheel (12) is connected to the outer end of the rotating shaft (13) by a key. The driving wheel (3) meshes with the driven wheel (12). The diameter of the driving wheel (3) is smaller than the diameter of the driven wheel (12).

6. A reel pipe-retrieving apparatus for a sewer cleaning vehicle according to claim 4, wherein The base (1) has a support plate (4) fixedly connected to the middle of both ends on one side, and a connecting shaft (5) is rotatably connected between the two support plates (4).

7. A reel pipe-retrieving apparatus for a sewer cleaning vehicle according to claim 6, wherein The outer end of the connecting shaft (5) and the outer end of the output shaft of the motor (2) are both connected to pulleys (6) by keys, and the two pulleys (6) are fitted with the same belt (7).

8. A reel pipe-retrieving apparatus for a sewer cleaning vehicle according to claim 7, wherein The connecting shaft (5) is externally fixedly connected to two side plates (9), and several connecting rods (8) are equidistantly fixedly connected to the outer side between the two side plates (9).

9. A pipe reeling apparatus for a sewer cleaning vehicle according to claim 3, wherein The outer side of the baffle (11) is fitted with a sleeve (14), and a threaded through hole is provided on one side of the sleeve (14). A bolt (15) is threadedly connected to the sleeve (14) at the threaded through hole. A clamp (16) is rotatably connected to the other side of the sleeve (14) through a damping shaft.

10. A reel pipe-retrieving apparatus for a sewer cleaning vehicle according to claim 9, wherein The sleeve (14) and the collar (1101) are located on the two baffles (11).

Images