A device for whitening trees in a garden

Abstract

The utility model discloses a kind of tree whitewashing devices for gardens, including two arms of telescopic that form tree-holding cavity, connecting piece of one end of two arms, and handle arranged on the connecting piece;Form the opening between the other end of two arms, which can be supplied into the tree-holding cavity for trunk;Arm is provided with spray head on the side towards trunk, output pipeline connected with the spray head passes through arm inside, and the output end of shunt built-in the connecting piece is connected, the input end of the shunt is provided with switch valve outside the connecting piece, and is connected with external liquid supply mechanism by input pipeline;The utility model can hold trunk without relative opening and closing, can be applied to dense planting tree whitewashing, by telescopic arm, to adapt to whitewashing need of different size trunk placement;While guaranteeing the telescopic case of arm, can reduce damage caused by pipeline exposure, improve service life, and overall volume is small, convenient for transfer.

Description

Technical Field

[0001] This utility model relates to the technical field of tree whitening equipment, and in particular to a tree whitening device for gardens. Background Technology

[0002] Whitewashing trees is a common practice in landscaping maintenance, with the core purpose of protecting tree health and enhancing their survival ability. The main components of whitewash (such as lime and sulfur) reflect sunlight, reducing the heat absorbed by the trunk. In winter, low nighttime temperatures mean that if the trunk absorbs too much heat during the day, the large temperature difference at night can cause the bark to crack. In early spring, temperatures rise rapidly, but the large diurnal temperature range causes the bark to heat up sharply under direct sunlight during the day and cool down quickly at night, easily leading to "scorching" or cracking. The reflective effect of whitewash helps balance the trunk temperature, reducing such damage. The sulfur and lime in the whitewash have bactericidal and insecticidal properties, directly eliminating some overwintering insect eggs and pathogens, reducing the outbreak of pests and diseases the following year. Currently, whitewashing is generally done manually. Manual whitewashing requires dipping a brush into pre-mixed whitewash before applying it to the tree trunk, resulting in low efficiency and high labor intensity for operators.

[0003] Chinese patent CN201910503750.3 discloses a tree whitening device, including a support, a whitening mechanism, and a dustproof mechanism. The whitening mechanism is located inside the dustproof mechanism and is mounted on the support. The support has a base at its lower end, and the base has casters at its lower end. The whitening mechanism includes two symmetrically distributed clamping frames, which are spliced ​​together to form a cylindrical frame. Each clamping frame has an arc-shaped pipe inside, which is slidably connected to the clamping frame. A driving mechanism is provided between the arc-shaped pipe and the clamping frame. A nozzle is provided inside the arc-shaped pipe. Support plates are provided at the upper and lower ends of the clamping frame, and the support plates cooperate with the tree trunk. When whitening the tree, the clamping frame hugs the tree trunk, and the support plates support the tree trunk. White slurry is sprayed onto the tree trunk through the nozzles. The driving mechanism drives the arc-shaped pipe to move up and down. Then, the clamping frame is rotated, and the arc-shaped pipe moves up and down again to complete the tree whitening. This device has high work efficiency and reduces labor intensity.

[0004] While the aforementioned patented technology can replace manual whitewashing of trees and improve the efficiency of whitewashing, the clamping frame in the whitewashing mechanism uses a relatively open and close method to hold the tree trunk, which requires a relatively wide space for it to open and close. This is not suitable for densely planted trees. Moreover, the material cylinder and the clamping frame are both set on the base and need to be moved together. The overall volume is large, which is not convenient for transportation and is also difficult to move between densely planted trees. Utility Model Content

[0005] The purpose of this invention is to provide a tree whitening device for gardens that can hold the tree trunk without the need for relative opening and closing, thus making it suitable for whitening densely planted trees.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A tree whitening device for landscaping includes two retractable arms forming a tree-hugging cavity, a connector connecting one end of the two arms, and a handle disposed on the connector; an opening is formed between the other ends of the two arms to allow the tree trunk to enter the tree-hugging cavity; a nozzle is disposed on the side of the arms facing the tree trunk, and an output pipe connected to the nozzle passes through the inside of the arms and is connected to the output end of a diverter built into the connector; the input end of the diverter extends out of the connector and is provided with a switch valve, and is connected to an external liquid supply mechanism through an input pipe.

[0008] Based on the above technical solution, the present invention can be improved as follows:

[0009] Furthermore, the arm includes an inner tube detachably connected to the connector at one end, and an outer tube movably sleeved on the inner tube, the outer tube forming the opening at the end away from the connector.

[0010] Furthermore, both the inner tube and the outer tube are arc-shaped tube structures with the same curvature, which can form a near-circular tree-hugging cavity.

[0011] Furthermore, the inner tube and the outer tube are provided with a connecting part on the side facing the tree trunk, and the connecting part has a threaded hole that communicates with the tube cavity, and the nozzle is threadedly connected to the threaded hole of the connecting part.

[0012] Furthermore, the outer tube is provided with a clearance groove on the side facing the tree trunk. One end of the clearance groove extends to the connection part near the outer tube, and the other end of the clearance groove is connected to the end port of the outer tube near the connector. When the outer tube moves relative to the inner tube, the connection part on the inner tube can slide and engage with the clearance groove on the outer tube.

[0013] Furthermore, the inner tube has a limiting through hole at the end away from the connector, the limiting through hole radially penetrates the inner tube, a bolt is inserted at the limiting through hole, and a nut is threaded onto the bolt; the outer tube has a limiting groove that is opposite to the limiting through hole of the inner tube, the limiting groove radially penetrates the outer tube, and the two ends of the limiting groove extend to the two ends near the outer tube; the bolt passes through the limiting through hole of the inner tube from one side of the outer tube through the limiting groove on the outer tube, and exits from the other side of the outer tube and is locked with a nut.

[0014] Furthermore, the connector includes a connector seat and a seat cover that are detachably connected to each other. The connector seat forms an accommodating chamber inside. The connector seat has connecting holes on two opposite side walls that communicate with the accommodating chamber, and is connected to the inner tube through a quick-connect assembly at the connecting holes. The output pipe connecting the nozzle passes through the inside of the arm and enters the connector seat from the connecting holes to connect with the output end of the diverter.

[0015] Furthermore, the output pipe of the nozzle connected to the outer pipe has a redundant section housed in the internal accommodating chamber of the connector; when the outer pipe moves away from the connector along the inner pipe, the redundant section is pulled out of the accommodating chamber inside the connector; a tube winding device is provided in the accommodating chamber, which is used to wind up the redundant section when the outer pipe moves towards the connector along the inner pipe.

[0016] Furthermore, the tube assembly is a drum, and the drum has a built-in coil spring.

[0017] Furthermore, the liquid supply mechanism includes a liquid storage tank and a water pump whose input end is connected to the liquid outlet on the liquid storage tank. The output end of the water pump is connected to the switch valve on the input end of the diverter through the input pipe.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] This invention features two retractable arms that form a tree-hugging cavity, allowing the tree trunk to be held securely without the need for relative opening and closing. It is suitable for whitewashing densely planted trees. Spray nozzles are installed on the arms, and the arms can be extended and retracted to accommodate whitewashing needs of tree trunks of different sizes. Simultaneously, the output pipes connecting the spray nozzles pass inside the arms and connect to the output end of a diverter built into the connector. This design minimizes the risk of damage from exposed pipes while ensuring the arms can extend and retract, thus extending the lifespan of the pipes. Furthermore, the overall design is compact and easy to transport. The liquid supply mechanism is connected to the arms only by a pipe, eliminating the need for the liquid supply mechanism to move between densely planted trees, further improving the convenience of whitewashing. Attached Figure Description

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Figure 1 This is a schematic diagram of the structure of the whitewashing device for garden trees in the embodiment;

[0022] Figure 2 This is a schematic diagram of the garden tree whitening device after removing the seat cover and liquid supply mechanism in the embodiment.

[0023] Figure 3 for Figure 2 Enlarged view of a portion at point A;

[0024] Figure 4 This is a schematic diagram of the inner tube structure in the embodiment;

[0025] Figure 5 This is a schematic diagram of the outer tube structure in the embodiment;

[0026] Figure 6 This is a schematic diagram of the drum structure after the base has been removed in the embodiment.

[0027] The markings on the attached diagram are as follows: 1-arm, 101-inner tube, 101a-limiting through hole, 102-outer tube, 102a-avoidance groove, 102b-limiting groove, 2-nozzle, 3-handle, 4-switch valve, 5-connecting seat, 6-seat cover, 7-quick release nut, 8-diverter pipe, 801-main body, 802-branch pipe, 9-reel, 10-storage tank, 11-water pump, 12-input pipe, 13-output pipe. Detailed Implementation

[0028] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. These descriptions are intended to aid in understanding the utility model but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0029] See Figures 1 to 6 This embodiment relates to a tree whitening device for gardens, including two opposing and retractable arms 1, a nozzle 2 mounted on the arms 1, a connector connecting one end of the two arms 1, and a handle 3 mounted on the connector; a diverter is provided inside the connector, the diverter having an input end and an output end, the input end of the diverter being connected to an external liquid supply mechanism through an input pipe 12, and the output end of the diverter being connected to the nozzle 2 on the arms 1 through an output pipe 13; wherein, the diverter extends out of the connector at the input end and is provided with a switch valve 4.

[0030] A tree-hugging cavity is formed between the two arm 1s, and an opening is formed between the other ends of the two arm 1s to connect the tree-hugging cavity. The tree trunk can enter the tree-hugging cavity through the opening. The slurry is pressurized by the liquid supply mechanism and transported along the input pipe 12. After being diverted by the diverter, it is transported to the two arm 1s through the output pipe 13 and sprayed out through the nozzles 2 on the two arm 1s to whiten the tree trunk.

[0031] Specifically, each of the two support arms 1 includes an inner tube 101 and an outer tube 102 movably fitted onto the inner tube 101. Both the inner tube 101 and the outer tube 102 are arc-shaped tube structures with the same curvature, forming a near-circular tree-hugging cavity. This allows the nozzle 2 to be close to the tree trunk for whitewashing, avoiding excessive distance between the nozzle 2 and the tree trunk, which could lead to excessive slurry splashing and waste. One end of the inner tube 101 of each support arm 1 is detachably connected to a connector, and the outer tube 102 of each support arm 1... An opening is formed between the ends furthest from the connector to allow the tree trunk to enter the circular tree-hugging cavity from the opening. When the tree trunk enters the tree-hugging cavity, the outer tube 102 and the inner tube 101 are on the inner side closer to the tree trunk, and the outer tube 102 and the inner tube 101 are on the outer side furthest from the tree trunk. The diameter of the inner tube 101 is smaller than that of the outer tube 102 so that the outer tube 102 can be movably fitted onto the inner tube 101 to adjust the opening and adapt to the needs of inserting tree trunks of different sizes.

[0032] The inner tube 101 and outer tube 102 of each arm 1 form a cavity inside that can accommodate the output pipe 13. The inner tube 101 and outer tube 102 are provided with a connecting part on the inner side. The connecting part has a threaded hole that connects to the cavity. The nozzle 2 is threadedly connected to the threaded hole of the connecting part.

[0033] In this embodiment, the inner tube 101 has a connecting part on its inner side at the middle, and the outer tube 102 has a connecting part on its inner side at the end away from the connector. Correspondingly, the inner tube 101 is connected to a nozzle 2 at the connecting part, and the outer tube 102 is connected to a nozzle 2 at the connecting part, so as to form four spraying points in the tree-hugging cavity to whiten the outer circumference of the tree trunk. Each nozzle 2 is connected to an output pipe 13. The number of nozzles 2 can be increased according to actual needs, but at least one nozzle 2 is provided on each inner tube 101 and outer tube 102 to ensure that at least four spraying points are formed in the tree-hugging cavity.

[0034] The outer tube 102 has a clearance groove 102a on its inner side. One end of the clearance groove 102a extends to the connection part near the outer tube 102, and the other end of the clearance groove 102a is connected to the end port of the outer tube 102 near the connector. When the outer tube 102 moves relative to the inner tube 101, the connection part on the inner tube 101 can slide and engage with the clearance groove 102a on the outer tube 102 to avoid interference between the connection part on the inner tube 101 and the outer tube 102.

[0035] The inner tube 101 has a limiting through hole 101a at the end away from the connector. The limiting through hole 101a radially penetrates the inner tube 101, and a bolt is inserted through the limiting through hole 101a with a nut threaded onto it. The outer tube 102 has a limiting groove 102b that is opposite to the limiting through hole 101a of the inner tube 101. The limiting groove 102b radially penetrates the outer tube 102, and its two ends extend to the ends near the outer tube 102. The bolt passes through the limiting groove 102b on the outer tube 102 from one side of the outer tube 102. The outer tube 102 passes through the limiting through hole 101a on the inner tube 101 and is locked with a nut. The movement distance of the outer tube 102 is limited by the cooperation of the bolt and the limiting groove 102b, so as to prevent the outer tube 102 from detaching from the inner tube 101 when it moves. When the tree trunk enters the tree-hugging cavity, the nut is loosened so that the outer tube 102 can move relative to the inner tube 101 and the opening is increased. After the tree trunk enters the tree-hugging cavity, the opening is reduced and the nut is tightened so that the outer tube 102 is fixed again, effectively preventing the tree trunk from detaching from the tree-hugging cavity during the whitewashing process.

[0036] The connector includes a connector 5 and a cover 6 that are detachably connected to each other. The connector 5 is a rectangular seat structure with a bottom wall and four side walls. An accommodating chamber is formed inside the connector 5. An opening is formed on the connector 5 opposite to the bottom wall. The diverter is fixedly installed in the accommodating chamber inside the connector 5 through the opening. The cover 6 is placed on the opening of the connector 5 and locked with bolts. The connector 5 has connection holes on two opposite side walls and is connected to the inner tube 101 through quick-connect components at the connection holes. The end of the output pipe 13 to be connected to the nozzle 2 enters the connector 5 through the connection hole and connects to the output end of the diverter.

[0037] In this embodiment, the quick-release assembly includes a threaded pipe connector disposed at the connection hole on the connecting seat 5, and a quick-release nut 7 rotatably disposed on the inner tube 101. The quick-release nut 7 and the threaded pipe connector are threadedly connected to each other so that the inner tube 101 is fixedly connected to the connecting seat 5.

[0038] The diverter is a diverter pipe 8, which includes a tubular main body 801 and five branch pipes 802 arranged axially along the main body 801. The five branch pipes 802 are connected to the cavity of the main body 801. Four of the branch pipes 802 serve as output ends and are connected to four nozzles 2 through output pipes 13 respectively. The other branch pipe 802 extends through the seat cover 6 and out of the connecting seat 5 as an input end. The seat cover 6 has corresponding through holes for the input end of the diverter pipe 8 to pass through.

[0039] Both the input pipe 12 and the output pipe 13 are flexible hoses as used in the prior art. The diameter of the output pipe 13 is smaller than the inner diameter of the inner pipe 101, and the length of the output pipe 13 connected to the nozzle 2 on the outer pipe 102 is greater than the total length of the outer pipe 102 and the inner pipe 101, forming a redundant section. This allows the output pipe 13 connected to the nozzle 2 on the outer pipe 102 to move accordingly when the outer pipe 102 moves relative to the inner pipe 101. When the outer pipe 102 moves along the inner pipe 101 towards the connecting seat 5, the redundant section of the output pipe 13 connected to the nozzle 2 on the outer pipe 102 is housed in the receiving chamber inside the connecting seat 5 and is wound up by the reel 9 located in the receiving chamber. The outer tube 102 moves away from the connecting seat 5 along the inner tube 101, and the redundant section of the output pipe 13 connected to the nozzle 2 on the outer tube 102 is pulled out of the internal accommodating chamber of the connecting seat 5. In the prior art, the drum 9 is provided with a top cover and a base at the bottom. The drum 9 is rotatably connected to the bottom wall of the connecting seat 5 through the base. The drum 9 has a built-in coil spring (not shown in the figure), which provides elasticity so that the drum 9 can wind up the redundant section of the output pipe 13 that enters the connecting seat 5 when the outer tube 102 moves towards the connecting seat 5 along the inner tube 101, thereby avoiding the output pipe 13 from getting tangled and knotted in the accommodating chamber.

[0040] It should be noted that since the inner tube 101 is fixed, the output pipe 13 connected to the nozzle 2 on the inner tube 101 does not need to be moved. Its length only needs to be greater than the total length of the inner tube 101, and there is no need to set up a reel 9 for winding. In this embodiment, the reel 9 is used as the pipe winding component. Depending on the actual situation, other existing pipe winding components suitable for winding the redundant section of the output pipe 13 can also be used instead, such as an electric reel.

[0041] The liquid supply mechanism includes a liquid storage tank 10 and a water pump 11 whose input end is connected to the liquid outlet on the liquid storage tank 10. The output end of the water pump 11 is connected to the switch valve 4 on the input end of the diversion pipe 8 through the input pipe 12. The switch valve 4 is a manual valve in the prior art. By manually operating the switch valve 4, the slurry delivery can be controlled. The liquid supply mechanism does not need to move between densely planted trees, which effectively improves the convenience of whitewashing.

[0042] In this embodiment, the handle 3 is a telescopic rod in the prior art. The telescopic rod can be retracted after the white coating is completed to reduce space occupation and facilitate transportation and carrying.

[0043] In practice, loosen the nut on the clasp 1, move the outer tube 102 to increase the opening, so that the tree trunk can enter the tree-hugging cavity from the opening; continue to move the outer tube 102 to decrease the opening and tighten the nut on the clasp 1; start the water pump 11, the slurry in the storage tank 10 is extracted and transported along the input pipe 12, after being diverted by the diversion pipe 8, it is transported to the two clasps 1 through the output pipe 13, and sprayed out through the nozzles 2 on the two clasps 1. The operator can hold the handle 3 to drive the two clasps 1 to whitewash the tree trunk from top to bottom.

[0044] The above embodiments of this utility model are not intended to limit the scope of protection of this utility model. The implementation of this utility model is not limited thereto. All other modifications, substitutions or alterations made to the above structure of this utility model based on the above content of this utility model and in accordance with the common technical knowledge and conventional means in the field, without departing from the basic technical idea of ​​this utility model, shall fall within the scope of protection of this utility model.

Claims

1. A device for whitewashing trees in landscaping, characterized in that, It includes two retractable arm arms that form a tree-hugging cavity, a connector connecting one end of the two arm arms, and a handle provided on the connector; an opening is formed between the other ends of the two arm arms to allow the tree trunk to enter the tree-hugging cavity; a nozzle is provided on the side of the arm arm facing the tree trunk, and the output pipe connected to the nozzle passes through the inside of the arm arm and is connected to the output end of a diverter built into the connector; the input end of the diverter extends out of the connector and is provided with a switch valve, and is connected to an external liquid supply mechanism through an input pipe; The arm includes an inner tube detachably connected to the connector at one end, and an outer tube movably sleeved on the inner tube, wherein the opening is formed between the ends of the outer tubes away from the connector. The outer tube has a clearance groove on the side facing the tree trunk. One end of the clearance groove extends to the connection part near the outer tube, and the other end of the clearance groove connects to the end port of the outer tube near the connector. When the outer tube moves relative to the inner tube, the connection part on the inner tube can slide and engage with the clearance groove on the outer tube. The output pipe of the nozzle connected to the outer pipe has a redundant section housed in the internal accommodating chamber of the connector; when the outer pipe moves away from the connector along the inner pipe, the redundant section is pulled out of the accommodating chamber inside the connector; a tube winding device is provided in the accommodating chamber, which is used to wind up the redundant section when the outer pipe moves towards the connector along the inner pipe.

2. The tree whitening device for gardens according to claim 1, characterized in that, Both the inner tube and the outer tube are arc-shaped tube structures with the same curvature, which can form a near-circular tree-hugging cavity.

3. The garden tree whitening device according to claim 2, characterized in that, The inner tube and the outer tube are provided with a connecting part on the side facing the tree trunk. The connecting part has a threaded hole that connects to the tube cavity. The nozzle is threadedly connected to the threaded hole of the connecting part.

4. The garden tree whitening device according to claim 3, characterized in that, The inner tube has a limiting through hole at the end away from the connector. The limiting through hole radially penetrates the inner tube, and a bolt is inserted through the limiting through hole. A nut is threaded onto the bolt. The outer tube has a limiting groove that is opposite to the limiting through hole of the inner tube. The limiting groove radially penetrates the outer tube, and the two ends of the limiting groove extend to the two ends close to the outer tube. The bolt passes through the limiting through hole on the inner tube from one side of the outer tube through the limiting groove on the outer tube, and exits from the other side of the outer tube and is locked with a nut.

5. The garden tree whitening device according to claim 4, characterized in that, The connector includes a connector seat and a cover that are detachably connected to each other. The connector seat forms an accommodating chamber inside. The connector seat has connecting holes on two opposite side walls that communicate with the accommodating chamber. The connector seat is connected to the inner tube through the connecting holes via quick-connect components. The output pipe that connects to the nozzle passes through the inside of the arm and enters the connector seat from the connecting holes to connect to the output end of the diverter.

6. The garden tree whitening device according to claim 5, characterized in that, The tube is a drum, and the drum has a built-in coil spring.

7. The garden tree whitening device according to any one of claims 1-6, characterized in that, The liquid supply mechanism includes a liquid storage tank and a water pump whose input end is connected to the liquid outlet on the liquid storage tank. The output end of the water pump is connected to the switch valve on the input end of the diverter through the input pipe.

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