A field robot

Abstract

The utility model relates to agricultural engineering technical field, and disclose a kind of track robot for test field, including two slide rails, the bottom of two The slide rails are provided with two groups of support components for supporting slide rail. The track robot for test field, the slide rail set is supported by support component and is raised with liquid storage tank, and by the drive of advancing mechanism, make liquid storage tank advance on two slide rails, by pump body pumping irrigation water to discharge component, irrigation water or the fertilizer diluted after being irrigated is discharged to crop, by the cooperation of adjusting mechanism, the height of discharge component can be adjusted, so that it can irrigate or fertilize work to different height crops, secondly, device has two kinds of ways of rotary injection irrigation water or static spraying irrigation water, rotary spraying is used for injection irrigation water, simulates rain day to irrigate crops, and the way of static spraying is used to spray diluted fertilizer to the root of crops.

Description

Technical Field

[0001] This utility model relates to the field of agricultural engineering technology, specifically to a track-type robot for experimental fields. Background Technology

[0002] Agricultural engineering is an interdisciplinary field that combines the principles of engineering, technology and biological sciences and applies them to agricultural production, processing and management. Its fundamental goal is to improve the efficiency of agricultural resource utilization, ensure the sustainable development of agriculture, and solve various problems related to food, fiber, energy and the environment.

[0003] An existing patent (publication number: CN220755960U) discloses an agricultural irrigation robot, relating to the field of agricultural irrigation technology. It includes a base with two symmetrically distributed rollers rotatably connected to both sides. A water tank is fixedly connected to one side of the top of the base. The rollers allow the base to move on the ground. A water pump draws water from the tank into a fixed pipe, which is then sprayed from a nozzle to irrigate crops. A connecting seat slides on a vertical plate, causing a water storage box to slide up and down, allowing irrigation of crops at different heights. The water storage box slides along one side of the connecting seat, enabling irrigation of crops at different locations, thus increasing the area irrigated. This solves the problem that the inability to adjust the device during use limits the robot's applicability to crops of different heights.

[0004] The aforementioned robot can spray and irrigate crops at different heights, increasing the area that can be irrigated. However, during use, the device needs to go deep into the field and walk repeatedly, which causes repeated compaction of the farmland. This is not conducive to the protection of the farmland. When the soil is wet on rainy days, repeated compaction will seriously damage the flatness and moisture of the soil, which is not conducive to the completion of subsequent operations. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a track-type robot for experimental fields, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a track-type robot for experimental fields, comprising two slide rails, with two sets of support components for supporting the slide rails at the bottom of the two slide rails, the two sets of support components being located on both sides of the two slide rails along their length direction; A liquid storage tank is connected between two slide rails via a traveling mechanism. The liquid storage tank includes a sealing cover plate hinged to its upper surface. A connecting pipe is rotatably connected to the central area of ​​the upper surface of the liquid storage tank via a sealing bearing. Multiple stirring plates for stirring fertilizer are fixedly connected to the circumference of the connecting pipe. The upper end of the connecting pipe is connected to a discharge component via an adjustment mechanism, which is connected to the traveling mechanism.

[0007] Furthermore, the support assembly includes a leg, which is connected to the slide rail by bolts. Two receiving grooves are opened on one side of the leg corresponding to the slide rail. Support plates are hinged to the inner walls of the two receiving grooves respectively, and a set of insert rods are fixedly connected to the bottom surface of the two support plates respectively. The upper surfaces of the two support plates are formed with rectangular grooves. A set of limiting teeth is fixedly connected to the inner bottom wall of each of the two rectangular grooves. Support plates are hinged to the inner walls of the two receiving grooves. The other ends of the two support plates are in contact with the corresponding limiting teeth.

[0008] The above solution, through the cooperation of the hinged support plate and the limiting teeth, can adjust the support angle and height according to the unevenness of the ground, ensuring the stable support of the slide rail, and the insertion rod can penetrate into the soil to enhance the stability of the support components.

[0009] Furthermore, the traveling mechanism includes a dual-axis motor fixedly mounted on the side of the liquid storage tank. The two output ends of the dual-axis motor are respectively connected to drive rods via couplings. Two bearing seats are mounted on the side of the liquid storage tank, and the two drive rods are respectively interference-fitted with the inner rings of the corresponding bearing seats. A toothed plate is fixedly connected to the upper surface of one of the slide rails, and a gear is fixedly installed at the end of the drive rod close to the toothed plate, which meshes with the toothed plate.

[0010] The above scheme achieves the movement of the liquid storage tank through the meshing transmission of gears and toothed plates.

[0011] Furthermore, the end of the other drive rod is connected to the upper end of the connecting pipe via a pulley and belt drive.

[0012] The above scheme transmits the power of the traveling mechanism to the connecting pipe through the transmission connection of the pulley and belt, driving the stirring plate to rotate, thus achieving synchronous travel and stirring.

[0013] Furthermore, the traveling mechanism also includes a support platform that is slidably connected between two slide rails. A set of rollers is rotatably connected to each side of the support platform along its width direction, and each roller is in contact with the corresponding slide rail.

[0014] The above solution reduces movement resistance by utilizing the contact between the rollers and the slide rail, making the movement of the liquid storage tank smoother.

[0015] Furthermore, the discharge assembly includes a support frame, a liquid storage tank is fixedly installed on the support frame, and two drain pipes are fixedly connected to the upper surface of the support frame. A set of nozzles is fixedly connected to the circumferential surface of each of the two drain pipes. The two drain pipes are connected to the sleeve via a T-shaped flexible hose.

[0016] The above solution, using a three-way hose connection, ensures an uninterrupted liquid supply while the discharge assembly rotates.

[0017] Furthermore, the adjustment mechanism includes a support frame connected to both sides of the liquid storage tank along its length direction by a self-locking slide rail. The support frame has a U-shaped structure. A sleeve is rotatably connected to the central area of ​​the upper surface of the support frame. A bearing frame is fixedly installed on the circumferential surface of the sleeve. A groove is formed at the upper end of the connecting pipe. An adjustment pipe is provided between the sleeve and the connecting pipe. The two ends of the adjustment pipe are located inside the connecting pipe and the sleeve, respectively. One end of the regulating tube is slidably fitted with a locking block, which is slidably inserted into the locking groove. The locking block is connected to the regulating tube by a clamping bolt, and the other end of the regulating tube is fixed inside the sleeve by a clamping bolt.

[0018] The above scheme, through the cooperation of self-locking slide rail and adjusting tube, can adjust the height and angle of the discharge component to adapt to crops at different growth stages. The contact between the contact block and the slot can keep the discharge component in a stationary state, which is convenient for irrigating or fertilizing crops in a stationary state.

[0019] Furthermore, both ends of the regulating tube are rotatably connected to sealing rings via sealed bearings, and the two sealing rings respectively contact the inside of the sleeve and the connecting tube.

[0020] The above solution, through the design of the sealing ring, improves the sealing performance between the regulating pipe, the sleeve, and the connecting pipe, thus preventing liquid leakage.

[0021] Furthermore, a pump body is fixedly installed on one side of the liquid storage tank. The water inlet end of the pump body is fixedly connected to a water inlet pipe. The other end of the water inlet pipe passes through the liquid storage tank and is located inside the liquid storage tank. The water inlet pipe and the liquid storage tank are sealed. The output end of the pump body is fixedly connected to a liquid supply pipe. The bottom end of the liquid supply pipe and the connecting pipe are connected by a rotary joint.

[0022] The above scheme, through the configuration of the pump body, enables the pumping of the mixed liquid in the storage tank.

[0023] Compared with the prior art, the technical solution of this utility model has the following beneficial effects: The experimental field uses a track-mounted robot. A sliding rail supports a storage tank via a support assembly. Driven by a traveling mechanism, the tank moves along two rails, pumping irrigation water to a discharge assembly. The irrigation water, or diluted fertilizer, is then discharged onto the crops. An adjustable mechanism allows for height adjustment of the discharge assembly, enabling irrigation or fertilization of crops at different heights. The device features two irrigation modes: rotary spraying to simulate rainy weather, and static spraying to apply diluted fertilizer to the roots. Finally, the device is supported by rails and a support assembly to prevent soil compaction and damage during fertilization or irrigation. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this application. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of this application. Figure 2 ; Figure 3 This is a schematic diagram of the tripod structure for this application; Figure 4 This is a cross-sectional view of the liquid storage tank structure in this application; Figure 5 For this application Figure 4 Enlarged schematic diagram of the structure at point A; Figure 6 This is a schematic diagram showing the separation of the sleeve and the regulating pipe in this application; Figure 7 This is a schematic diagram of the support platform structure in this application.

[0025] In the picture: 1. Slide rail; 2. Support components; 201. Tripod; 202. Receiving slot; 203. Support plate; 204. Insert rod; 205. Rectangular slot; 206. Limiting tooth; 207. Support plate; 3. Propelling mechanism; 301. Dual-axis motor; 302. Drive rod; 303. Gear plate; 304. Gear; 305. Support platform; 306. Roller; 4. Liquid storage tank; 401. Sealing cover; 5. Connecting pipe; 6. Stirring plate; 7. Adjustment mechanism; 701. Support frame; 702. Sleeve; 703. Slot; 704. Adjusting tube; 705. Locking block; 8. Emission components; 801. Support frame; 802. Drain pipe; 803. Nozzle; 9. Sealing ring; 10. Pump body; 11. Inlet pipe; 12. Liquid supply pipe. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] Please see Figures 1-7 This embodiment of a track-type robot for experimental fields includes two slide rails 1. The bottom of the two slide rails 1 is provided with two sets of support components 2 for supporting the slide rails 1. The two sets of support components 2 are respectively located on both sides of the two slide rails 1 along their length direction. Through the cooperation of the slide rails 1 and the support components 2, the entire device can be erected, which can avoid crushing the experimental field due to repeated fertilization, thereby protecting the soil structure of the experimental field and ensuring that the crop growth environment is not damaged.

[0028] A liquid storage tank 4 is connected between two slide rails 1 via a traveling mechanism 3. The liquid storage tank 4 includes a sealing cover plate 401 hinged to its upper surface. A connecting pipe 5 is rotatably connected to the central area of ​​the upper surface of the liquid storage tank 4 via a sealing bearing. Multiple stirring plates 6 for stirring fertilizer are fixedly connected to the circumference of the connecting pipe 5. The stirring plates 6 can stir the irrigation water inside the liquid storage tank 4 with the fertilizer as the liquid storage tank 4 moves along the slide rail 1, so that the fertilizer can be mixed with the irrigation water and the concentration of the fertilizer can be diluted to avoid root burn.

[0029] The upper end of the connecting pipe 5 is connected to the discharge component 8 via the adjustment mechanism 7. The adjustment mechanism 7 is connected to the traveling mechanism 3. The discharge component 8 can be connected to or disconnected from the traveling mechanism 3 during the movement of the liquid storage tank 4. During the movement of the liquid storage tank 4, the discharge component 8 can rotate or remain stationary to spray. At the same time, the adjustment mechanism 7 can adjust the height of the discharge component 8 for fertilizing or irrigating crops at different heights.

[0030] The support assembly 2 includes a leg 201, which is connected to the slide rail 1 by bolts. Two receiving grooves 202 are formed on one side of the leg 201 corresponding to the slide rail 1. Support plates 203 are hinged to the inner walls of the two receiving grooves 202. A set of insert rods 204 are fixedly connected to the bottom surfaces of the two support plates 203. Rectangular grooves 205 are formed on the upper surfaces of the two support plates 203. A set of limiting teeth 206 are fixedly connected to the inner bottom walls of the two rectangular grooves 205. Support plates 207 are hinged to the inner walls of the two receiving grooves 202. The other ends of the two support plates 207 contact the corresponding limiting teeth 206. Through the hinged support plates 203 and the cooperation between the support plates 207 and the limiting teeth 206, the support angle and height can be adjusted according to uneven ground conditions to ensure stable support of the slide rail 1. The insert rods 204 can penetrate into the soil, enhancing the stability of the support assembly 2.

[0031] The traveling mechanism 3 includes a dual-axis motor 301 fixedly mounted on the side of the liquid storage tank 4. The two output ends of the dual-axis motor 301 are respectively connected to drive rods 302 via couplings. Two bearing seats are mounted on the side of the liquid storage tank 4. The two drive rods 302 are respectively interference-fitted with the inner rings of the corresponding bearing seats. A toothed plate 303 is fixedly connected to the upper surface of one of the slide rails 1. A gear 304 is fixedly mounted on the end of the drive rod 302 close to the toothed plate 303. The gear 304 meshes with the toothed plate 303. Through the meshing transmission of the gear 304 and the toothed plate 303, the traveling mechanism 3 of the liquid storage tank 4 is realized. The end of the other drive rod 302 is connected to the upper end of the connecting pipe 5 via a pulley and belt drive. Through the transmission connection of the pulley and belt, the power of the traveling mechanism 3 is transmitted to the connecting pipe 5, driving the stirring plate 6 to rotate, so as to realize the synchronous operation of traveling and stirring.

[0032] The traveling mechanism 3 also includes a support platform 305 that is slidably connected between two slide rails 1. A set of rollers 306 are rotatably connected to the two sides of the support platform 305 along its width direction. Each roller 306 contacts the corresponding slide rail 1. The contact between the rollers 306 and the slide rail 1 reduces the moving resistance and makes the movement of the liquid storage tank 4 smoother. The discharge assembly 8 includes a support frame 801. The liquid storage tank 4 is fixedly installed on the support frame 801. Two drain pipes 802 are fixedly connected to the upper surface of the support frame 801. A set of nozzles 803 are fixedly connected to the circumferential surface of the two drain pipes 802 respectively. The two drain pipes 802 are connected to the sleeve 702 through a three-way hose. The connection through the three-way hose ensures that the liquid supply is uninterrupted when the discharge assembly 8 rotates.

[0033] The adjusting mechanism 7 includes a support frame 701 connected to both sides of the liquid storage tank 4 along its length via self-locking slide rails. The support frame 701 has a U-shaped structure. A sleeve 702 is rotatably connected to the central area of ​​the upper surface of the support frame 701. A bearing frame 801 is fixedly installed on the circumferential surface of the sleeve 702. A groove 703 is formed at the upper end of the connecting pipe 5. An adjusting pipe 704 is provided between the sleeve 702 and the connecting pipe 5. The two ends of the adjusting pipe 704 are located inside the connecting pipe 5 and the sleeve 702, respectively. One end of the adjusting pipe 704 is slidably sleeved with a retainer. Block 705 is slidably inserted into slot 703, and block 705 is connected to adjusting pipe 704 by clamping bolt. The other end of adjusting pipe 704 is fixed inside sleeve 702 by clamping bolt. Through the cooperation of self-locking slide rail and adjusting pipe 704, the height and angle of discharge component 8 can be adjusted to adapt to crops at different growth stages. By contacting block 705 and slot 703, discharge component 8 can be kept in a stationary state, which is convenient for irrigating or fertilizing crops in a stationary state.

[0034] The working principle of the above embodiment is as follows: First, place the two legs 201 at the designated position. Then, rotate the support plate 203 so that the multiple inserts 204 on the support plate 203 penetrate into the soil. Next, rotate the support plate 207 so that one end of the support plate 207 abuts against the limiting teeth 206, thereby stabilizing the legs 201. Adjusting the limiting teeth 206 against which the support plate 207 abuts ensures that the support plate 203 always remains in contact with the soil, allowing it to be placed on uneven soil surfaces. Then, use bolts to fix the two legs 201 to the slide rail 1. Place the bearing platform 305 on the two slide rails 1 and keep the gear 304 and the toothed plate 303 in a meshing state. The two ends of the adjusting tube 704 are... A sealing ring 9 is rotatably connected to the sealing bearing. The two sealing rings 9 respectively contact the inside of the sleeve 702 and the connecting pipe 5. The design of the sealing rings 9 improves the sealing performance between the regulating pipe 704, the sleeve 702 and the connecting pipe 5, and prevents liquid leakage. A pump body 10 is fixedly installed on one side of the liquid storage tank 4. The water inlet end of the pump body 10 is fixedly connected to the water inlet pipe 11. The other end of the water inlet pipe 11 passes through the liquid storage tank 4 and is located inside the liquid storage tank 4. The water inlet pipe 11 and the liquid storage tank 4 are sealed. The output end of the pump body 10 is fixedly connected to the liquid supply pipe 12. The liquid supply pipe 12 is connected to the bottom end of the connecting pipe 5 through a rotary joint. The pump body 10 is used to pump the mixed liquid in the liquid storage tank 4.

[0035] When irrigating crops, the dual-shaft motor 301 drives two drive rods 302 to rotate. One drive rod 302 drives a gear 304 to rotate synchronously. Through the meshing of the gear 304 and the toothed plate 303, the support platform 305 can move between two slide rails 1. The rollers 306 help reduce the friction experienced by the support platform 305 during movement. While the storage tank 4 is moving, the other drive rod 302 drives the connecting pipe 5 to rotate via a belt. During this rotation, the connecting pipe 5 stirs the fertilizer inside the storage tank 4 through the stirring plate 6, mixing the irrigation water with the fertilizer to dilute it. Subsequently, the connecting pipe 5 continues to rotate... The pump body 10 can rotate the regulating pipe 704 by cooperating with the locking block 705 and the locking slot 703, so that the regulating pipe 704 drives the sleeve 702 to rotate synchronously, which in turn drives the support frame 801 on the circumference of the sleeve 702 to rotate, so that the two drain pipes 802 can rotate around the sleeve 702 as the center. Then, the pump body 10 draws irrigation water from the storage tank 4 through the water inlet pipe 11 and delivers it to the connecting pipe 5 through the water supply pipe and the rotary joint. The irrigation water is delivered to the two drain pipes 802 through the connecting pipe 5, the regulating pipe 704, the sleeve 702 and the three-way pipe, and discharged from multiple nozzles 803. The rotation of the support frame 801 makes the irrigation water spray more evenly.

[0036] When diluted fertilizer is needed to fertilize crops, the sliding block 705 is used to separate it from the slot 703. Then, the clamping bolt is used to fix the block 705 to the upper end of the regulating pipe 704. At this time, during the rotation of the connecting pipe 5, the sleeve 702 will not be rotated through the regulating pipe 704, so that the drain pipe 802 can be stationary. This allows the fertilizer solution inside the storage tank 4 to be discharged through the drain pipe 802 and the nozzle 803, irrigating the roots of the crops and fertilizing the roots of the crops.

[0037] When the height of the drain pipe 802 needs to be adjusted, loosen multiple clamping bolts and vertically slide the support frame 701. The self-locking slide rail can automatically lock after the support frame 701 slides to the designated position. Through the cooperation of the adjusting pipe 704 and the sealing ring 9, the connection between the connecting pipe 5 and the sleeve 702 can always be maintained, so as to realize the adjustment of the height of the drain pipe 802, which is convenient for irrigating crops at different heights.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A track-type robot for experimental fields, comprising two slide rails (1), characterized in that: The bottom of the two slide rails (1) is provided with two sets of support components (2) for supporting the slide rails (1), and the two sets of support components (2) are respectively located on both sides of the two slide rails (1) along their length direction; Two slide rails (1) are connected by a travel mechanism (3) to a liquid storage tank (4). The liquid storage tank (4) includes a sealing cover plate (401) hinged to its upper surface. The central area of ​​the upper surface of the liquid storage tank (4) is rotatably connected to a connecting pipe (5) through a sealing bearing. Multiple stirring plates (6) for stirring fertilizer are fixedly connected to the circumferential surface of the connecting pipe (5). The upper end of the connecting pipe (5) is connected to the discharge assembly (8) via an adjustment mechanism (7), which is connected to the traveling mechanism (3).

2. The track-mounted robot for experimental fields according to claim 1, characterized in that: The support assembly (2) includes a leg (201), which is connected to the slide rail (1) by bolts. The leg (201) has two receiving grooves (202) on one side corresponding to the slide rail (1). The inner walls of the two receiving grooves (202) are respectively hinged with support plates (203), and the bottom surfaces of the two support plates (203) are respectively fixedly connected with a set of plug rods (204). The upper surfaces of the two support plates (203) are formed with rectangular grooves (205), and the inner bottom walls of the two rectangular grooves (205) are respectively fixedly connected with a set of limiting teeth (206). The inner walls of the two receiving grooves (202) are respectively hinged with support plates (207), and the other ends of the two support plates (207) are respectively in contact with the corresponding limiting teeth (206).

3. The track-mounted robot for experimental fields according to claim 1, characterized in that: The traveling mechanism (3) includes a dual-axis motor (301) fixedly installed on the side of the liquid storage tank (4). The two output ends of the dual-axis motor (301) are respectively connected to drive rods (302) through couplings. Two bearing seats are installed on the side of the liquid storage tank (4). The two drive rods (302) are respectively interference-fitted with the inner ring of the corresponding bearing seats. One of the slide rails (1) has a toothed plate (303) fixedly connected to its upper surface. A gear (304) is fixedly installed at the end of a drive rod (302) close to the toothed plate (303). The gear (304) meshes with the toothed plate (303). The end of the other drive rod (302) is connected to the upper end of the connecting pipe (5) via a pulley and belt drive.

4. A track-type robot for experimental fields according to claim 1 or 3, characterized in that: The traveling mechanism (3) also includes a support platform (305) that is slidably connected between two slide rails (1). A set of rollers (306) are rotatably connected to the two sides of the support platform (305) along its width direction. Each roller (306) is in contact with the corresponding slide rail (1).

5. The track-mounted robot for experimental fields according to claim 1, characterized in that: The discharge assembly (8) includes a support frame (801), a liquid storage tank (4) is fixedly installed on the support frame (801), and two drain pipes (802) are fixedly connected to the upper surface of the support frame (801). A set of nozzles (803) are fixedly connected to the circumferential surfaces of the two drain pipes (802). The two drain pipes (802) are connected to the sleeve (702) via a T-shaped flexible hose.

6. The track-mounted robot for experimental fields according to claim 1, characterized in that: The adjustment mechanism (7) includes a support frame (701) that is connected to both sides of the storage tank (4) along its length direction by a self-locking slide rail. The support frame (701) has a U-shaped structure. A sleeve (702) is rotatably connected to the central area of ​​the upper surface of the support frame (701). A bearing frame (801) is fixedly installed on the circumferential surface of the sleeve (702). A groove (703) is formed at the upper end of the connecting pipe (5). An adjustment pipe (704) is provided between the sleeve (702) and the connecting pipe (5). The two ends of the adjustment pipe (704) are located inside the connecting pipe (5) and the sleeve (702), respectively. One end of the regulating tube (704) is slidably sleeved with a locking block (705), the locking block (705) is slidably inserted into the locking groove (703), and the locking block (705) is connected to the regulating tube (704) by a clamping bolt. The other end of the regulating tube (704) is fixed inside the sleeve (702) by a clamping bolt.

7. The track-mounted robot for experimental fields according to claim 6, characterized in that: The two ends of the regulating pipe (704) are respectively connected to sealing rings (9) through sealing bearings. The two sealing rings (9) are in contact with the inside of the sleeve (702) and the connecting pipe (5).

8. The track-mounted robot for experimental fields according to claim 1, characterized in that: A pump body (10) is fixedly installed on one side of the liquid storage tank (4). The water inlet end of the pump body (10) is fixedly connected to a water inlet pipe (11). The other end of the water inlet pipe (11) passes through the liquid storage tank (4) and is located inside the liquid storage tank (4). The water inlet pipe (11) and the liquid storage tank (4) are sealed. The output end of the pump body (10) is fixedly connected to a liquid supply pipe (12). The liquid supply pipe (12) is connected to the bottom end of the connecting pipe (5) through a rotary joint.

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