Retracting and releasing device for fruit tree anti-hail net construction

Abstract

The utility model relates to the technical field of anti-hail net devices, in particular to a fruit tree anti-hail net construction folding and unfolding device which comprises a base, a folding and unfolding mechanism is installed at the top end of the base and comprises a threaded rod, a limiting column, a connecting ring, a supporting seat and a fixing ring, and the outer wall of the fixing ring is rotationally connected with a plurality of protection rods. A plurality of supporting rods are rotationally connected to the outer wall of the connecting ring, and a fixing mechanism is slidably connected to the bottom end of the base and penetrates through the bottom end of the base. According to the fruit tree protection device, through mutual cooperation of internal parts of the folding and unfolding mechanism, the protection rod and the supporting rod can conveniently move towards the top end of a fruit tree from the upper portion of the fruit tree, and then the situation that the protection rod and the supporting rod make contact with branches of the fruit tree and knock off fruits when opened is avoided; the telescopic rod can conveniently move to drive the anti-hail net to be opened, the protection area of the anti-hail net is enlarged, and then the protection effect of the anti-hail net on fruit trees is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of hail net devices, specifically to a device for deploying and retracting hail nets for fruit trees. Background Technology

[0002] Agronomists are primarily responsible for providing technical guidance and implementation for production, including fruit tree seedlings, plant protection, soil and fertilizer management, planting records, and field management. They are responsible for improving the quality of fruit trees, increasing labor efficiency, and reducing costs during the fruit tree planting process. They are also responsible for guiding the prevention and control of diseases, pests, and weeds. When fruit trees are damaged by hail during the planting period, their photosynthesis and stress resistance decrease, and the increased humidity in the orchard promotes the spread of diseases, greatly reducing fruit yield.

[0003] Hail is a natural disaster that can be predicted by weather systems. Prevention can be achieved through management and technological means. One effective hail protection measure is to cover fruit trees with netting to reduce damage. The hail netting is reinforced with wire and supports, and it also prevents pests and provides shade for the trees. Currently, the hail netting is fixed to supports with multiple sets of wires and installed above the fruit trees. Dismantling this netting is time-consuming and labor-intensive, and its height makes it inconvenient for workers to remove directly, requiring climbing tools.

[0004] A search revealed a utility model patent with publication number CN216163893U, which discloses an easily adjustable hail net device specifically for orchards. The device includes a left support rod, a base rod, a right support frame, a reinforcing rod, a movable block, a square guide rod, a quick-release bolt (first type), a hollow rod, a second quick-release bolt, soil, a hail net, an adjustable lifting screw structure, an anti-fall-off steel wire seat structure, an easy-to-disassemble and fix sleeve structure, and a locking nut. One end of the left support rod is bolted to the upper left side of the base rod, and the other end is bolted to the upper left side of the reinforcing rod. One end of the right support frame is bolted to the upper right side of the base rod, and the other end is bolted to the upper right side of the reinforcing rod. The lower end of the reinforcing rod is bolted to the middle of the upper part of the base rod. The design of the bracket, insertion hole, mounting hole, bearing, long nut, annular end cap, operating lever, and lifting screw facilitates the adjustment of the lifting screw length according to the height of the fruit trees.

[0005] Although the aforementioned patent achieves the function of adjusting the length of the lifting screw according to the height of the fruit tree through the setting of a new bracket, insertion hole, mounting hole, bearing, long nut, annular end cap, operating lever and lifting screw, the existing hail net deployment and retrieval devices all have an umbrella-shaped structure at the top. Therefore, when the device is in use, it is generally fixed between multiple fruit trees. When hail occurs, the deployment and retrieval device is opened, and when the hail net is opened through the bracket, the bracket and hail net will come into contact with the branches of the fruit trees, causing the fruit on the trees to fall off, thus affecting the harvest.

[0006] Therefore, it is necessary to propose a device for deploying and retracting hail nets for fruit trees to solve the above problems. Utility Model Content

[0007] The purpose of this invention is to provide a device for deploying and retracting hail nets for fruit trees. Through the cooperation of internal components of the deployment and retracting mechanism, the protective rod and support rod can be moved from the top of the fruit tree towards the top, thus preventing them from contacting the branches and knocking down fruit when opened. The cooperation of internal components of the fixing mechanism facilitates the movement of the telescopic rod, opening the hail net and expanding its protective area, thereby improving its protective effect on the fruit trees. This solves the problem in existing technologies where, when the hail net is opened via a support frame, the frame and the net come into contact with the branches, causing fruit to fall and affecting the harvest.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a device for setting up and taking down hail nets for fruit trees, comprising a base, a setting up and taking down mechanism installed at the top of the base, and a fixing mechanism slidably connected to the bottom of the base and extending through to the bottom of the base;

[0009] The retracting mechanism includes a threaded rod, which is rotatably connected to the top of the base via a bearing. A limit post is mechanically fixed to the top of the base and located on one side of the threaded rod. A connecting ring is slidably sleeved on the outer wall of the threaded rod and the limit post. A support base is rotatably connected to the top of the threaded rod. A fixing ring is sleeved and fixed on the outer wall of the support base. Multiple protective rods are rotatably connected to the outer wall of the fixing ring. Multiple support rods are rotatably connected to the outer wall of the connecting ring, and the multiple support rods are located at the bottom of the protective rods.

[0010] The fixing mechanism includes a telescopic rod, which is slidably connected to the end of the protective rod away from the support base. The inner wall of the protective rod is mechanically fixed with a support column, and the telescopic rod is slidably sleeved with the outer wall of the support column.

[0011] Preferably, the fixing mechanism further includes a fixing seat, which is slidably connected to the top of the base and extends through to the bottom of the base, and is sleeved with the outer wall of the limiting post and the threaded rod. A support ring is sleeved and fixed to the outer wall of the fixing seat and is slidably connected to the inside of the base. A support spring is mechanically fixed to the bottom end of the support ring and is sleeved with the outer wall of the fixing seat.

[0012] Preferably, the bottom end of the base is equipped with multiple casters with self-locking structures, and the base is equipped with a servo motor that drives the rotation of the limit column. The limit column is mechanically connected to the output end of the servo motor through a coupling.

[0013] Preferably, the inner wall of the connecting ring is fitted with a slider that matches the thread on the outer wall of the threaded rod, and the surface of the connecting ring is provided with a limiting hole that matches the limiting post, wherein the limiting post is a square post.

[0014] Preferably, the support rod and the protective rod are rotatably connected to the connecting ring and the fixing ring respectively through the connecting seat, the top end of the support rod and the bottom end of the protective rod are rotatably connected by the hinge, and the top end of the telescopic rod away from the protective rod and the top end of the support seat are mechanically fixed with hooks around their perimeter.

[0015] Preferably, the protective rod has an internal telescopic groove that matches the telescopic rod, and the telescopic rod has an internal connecting groove that matches the support column. The outer wall of the support column is provided with ball bearings at the connection point with the telescopic rod. The bottom end of the fixed seat is a conical structure, and the base has an internal telescopic groove that matches the fixed seat and the support ring.

[0016] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0017] 1. After pushing the device to the appropriate position using the base, lock the universal wheels at the bottom of the base, then start the servo motor to drive the threaded rod to rotate. The rotation of the threaded rod, through the thread and the limiting post, causes the connecting ring to slide downward from the top of the threaded rod. The sliding of the connecting ring drives the support rod to move through the connecting seat. The movement of the support rod causes the protective rod on the fixed ring to move synchronously. This allows the support rod and the protective rod to rotate and open on the connecting ring and the fixed ring respectively through the connecting seat. The angle between the multiple protective rods and the threaded rod is 75 degrees. At the same time, the direction of movement of the protective rod and the support rod is from the top of the fruit tree to the top of the fruit tree, thus avoiding contact between the protective rod and the support rod and the branches of the fruit tree when they open, which would knock down the fruit.

[0018] 2. After the angle between the multiple protective rods and the threaded rods is 75 degrees, the telescopic rod at the end of the protective rod away from the fixing ring moves downward under its own weight, so that the telescopic rod and the support column cooperate with each other and extend from the inside of the protective rod. The movement of the telescopic rod can drive the hail protection net to open, expand the protection area of ​​the hail protection net, and thus improve the protection effect of the hail protection net on the fruit trees. At the same time, the connecting ring moves downward to contact the top of the fixing seat and squeezes the fixing seat. The fixing seat is forced to compress the support ring and the support spring, causing the support ring to move and drive the fixing seat to move. The fixed seat moves and extends from the bottom of the base and penetrates deep into the ground, completing the fixation between the base and the ground, thus preventing the base from shifting due to hail contact with the hail protection net. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the connection structure between the support rod and the protective rod of this utility model;

[0022] Figure 3 This is a cross-sectional structural diagram of the base of this utility model;

[0023] Figure 4 This is a cross-sectional schematic diagram of the connection structure between the protective rod and the telescopic rod of this utility model;

[0024] Figure 5 For the present utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Base; 2. Retracting / Extending Mechanism; 201. Threaded Rod; 202. Limiting Post; 203. Connecting Ring; 204. Support Seat; 205. Fixing Ring; 206. Support Rod; 207. Protective Rod; 3. Fixing Mechanism; 301. Fixing Seat; 302. Support Ring; 303. Support Spring; 304. Telescopic Rod; 305. Support Post. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0028] This utility model provides, for example Figure 1-5 The device shown is a device for setting up and taking down a hail net for fruit trees. It includes a base 1, a setting up and taking down mechanism 2 installed at the top of the base 1, and a fixing mechanism 3 slidably connected to the bottom of the base 1 and extending through to the bottom of the base 1.

[0029] The retracting mechanism 2 includes a threaded rod 201, which is rotatably connected to the top of the base 1 via a bearing. A limit post 202 is mechanically fixed to the top of the base 1 and is located on one side of the threaded rod 201. A connecting ring 203 is slidably sleeved on the outer wall of the threaded rod 201 and the limit post 202. A support seat 204 is rotatably connected to the top of the threaded rod 201. A fixing ring 205 is fixedly sleeved on the outer wall of the support seat 204. Multiple protective rods 207 are rotatably connected to the outer wall of the fixing ring 205. Multiple support rods 206 are rotatably connected to the outer wall of the connecting ring 203, and the multiple support rods 206 are located at the bottom of the protective rods 207.

[0030] The fixing mechanism 3 includes a telescopic rod 304, which is slidably connected to the end of the protective rod 207 away from the support base 204. The inner wall of the protective rod 207 is mechanically fixed with a support column 305, and the telescopic rod 304 is slidably sleeved with the outer wall of the support column 305.

[0031] The cooperation between the internal parts of the retracting mechanism 2 facilitates the movement of the protective rod 207 and the support rod 206 from the top of the fruit tree to the top of the fruit tree, thereby preventing the protective rod 207 and the support rod 206 from contacting the branches of the fruit tree when they are opened and knocking down the fruit. The cooperation between the internal parts of the fixing mechanism 3 facilitates the movement of the telescopic rod 304 to open the hail net, expand the protective area of ​​the hail net, and thus improve the protective effect of the hail net on the fruit tree.

[0032] Refer to the instruction manual appendix Figure 1-5 The fixing mechanism 3 also includes a fixing seat 301, which is slidably connected to the top of the base 1 and extends to the bottom of the base 1. It is sleeved with the outer wall of the limiting post 202 and the threaded rod 201. A support ring 302 is sleeved and fixed to the outer wall of the fixing seat 301 and is slidably connected to the inside of the base 1. A support spring 303 is mechanically fixed to the bottom of the support ring 302 and is sleeved with the outer wall of the fixing seat 301. Through the mutual cooperation between the internal parts of the fixing mechanism 3, the position of the base 1 is fixed on the ground when the hail net is opened, so as to avoid the hail from contacting the hail net and causing the device to shift.

[0033] Refer to the instruction manual appendix Figure 1-5 The bottom of the base 1 is equipped with multiple casters with self-locking structures. The base 1 is equipped with a servo motor that drives the rotation of the limit column 202. The limit column 202 is mechanically connected to the output end of the servo motor through a coupling. The multiple casters with self-locking structures installed at the bottom of the base 1 facilitate the movement of the device in the orchard.

[0034] Refer to the instruction manual appendix Figure 1-5The inner wall of the connecting ring 203 is fitted with a slider that matches the thread on the outer wall of the threaded rod 201, and the surface of the connecting ring 203 is provided with a limiting hole that matches the limiting post 202. The limiting post 202 is a square post. The sliding block that matches the thread on the outer wall of the threaded rod 201 is fitted with the slider on the inner wall of the connecting ring 203, and the limiting hole that matches the limiting post 202 is provided on the surface of the connecting ring 203, makes it easy for the threaded rod 201 to rotate and drive the connecting ring 203 to slide on the outer wall of the threaded rod 201 and the limiting post 202.

[0035] Refer to the instruction manual appendix Figure 1-5 The support rod 206 and the protective rod 207 are rotatably connected to the connecting ring 203 and the fixing ring 205 respectively through the connecting seat. The top end of the support rod 206 and the bottom end of the protective rod 207 are rotatably connected by a hinge. The top end of the telescopic rod 304 away from the protective rod 207 and the top end of the support seat 204 are mechanically fixed with hooks around the top. The mechanically fixed hooks on the top end of the telescopic rod 304 away from the protective rod 207 and the top end of the support seat 204 facilitate the fixing of the hail net on the telescopic rod 304 and the support seat 204.

[0036] Refer to the instruction manual appendix Figure 1-5 The protective rod 207 has an internal telescopic groove that matches the telescopic rod 304, and the telescopic rod 304 has an internal connecting groove that matches the support column 305. A ball bearing is provided at the connection between the outer wall of the support column 305 and the telescopic rod 304. The bottom end of the fixing seat 301 is a conical structure, and the base 1 has an internal telescopic groove that matches the fixing seat 301 and the support ring 302. The protective rod 207 has an internal telescopic groove that matches the telescopic rod 304, and the telescopic rod 304 has an internal connecting groove that matches the support column 305. The ball bearing is provided at the connection between the outer wall of the support column 305 and the telescopic rod 304, facilitating the sliding of the telescopic rod 304 out of the protective rod 207 through the support column 305 after the protective rod 207 is rotated open.

[0037] The working principle of this practical application is as follows:

[0038] Refer to the instruction manual appendix Figure 1-5After the device is pushed to a suitable position via the base 1, the universal wheel at the bottom of the base 1 is self-locked. Then, the servo motor is started to drive the threaded rod 201 to rotate. The rotation of the threaded rod 201 causes the connecting ring 203 to slide downward from the top of the threaded rod 201 through the thread and the limiting post 202. The sliding of the connecting ring 203 causes the support rod 206 to move through the connecting seat. The movement of the support rod 206 causes the protective rod 207 on the fixed ring 205 to move synchronously. The support rod 206 and the protective rod 207 rotate and open on the connecting ring 203 and the fixed ring 205 respectively through the connecting seat. The included angle between the multiple protective rods 207 and the threaded rod 201 is 75 degrees. At the same time, the direction of movement of the protective rods 207 and the support rod 206 is from the top of the fruit tree to the top of the fruit tree. This can prevent the protective rods 207 and the support rod 206 from contacting the branches of the fruit tree when they are opened, thus avoiding knocking down the fruit.

[0039] Refer to the instruction manual appendix Figure 1-5 With the angle between multiple protective rods 207 and threaded rods 201 reaching 75 degrees, the telescopic rod 304 at the end of the protective rod 207 away from the fixing ring 205 moves downward under its own weight, causing the telescopic rod 304 and the support column 305 to cooperate and extend from inside the protective rod 207. The movement of the telescopic rod 304 can open the hail net, expanding the protective area of ​​the hail net and thus improving the protective effect of the hail net on the fruit trees. At the same time, the connecting ring 203 moves downward and contacts the top of the fixing seat 301, squeezing the fixing seat 301. The fixing seat 301 is forced to compress the support ring 302, which in turn compresses the support spring 303 and moves. The movement of the support ring 302 drives the fixing seat 301 to move. The fixed seat 301 extends from the bottom of the base 1 and penetrates deep into the ground, completing the fixation between the base 1 and the ground. This prevents the base 1 from shifting due to contact between hail and the hail net.

[0040] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A device for deploying and retracting hail nets for fruit trees, characterized in that: Includes a base (1), the top of which is equipped with a retractable mechanism (2), and the bottom of which is slidably connected to a fixing mechanism (3) that extends through to the bottom of the base (1); The retracting mechanism (2) includes a threaded rod (201), which is rotatably connected to the top of the base (1) via a bearing. A limit post (202) is mechanically fixed at the top of the base (1) and located on one side of the threaded rod (201). A connecting ring (203) is slidably sleeved on the outer wall of the threaded rod (201) and the limit post (202). A support seat (204) is rotatably connected to the top of the threaded rod (201). A fixing ring (205) is sleeved and fixed on the outer wall of the support seat (204). Multiple protective rods (207) are rotatably connected to the outer wall of the fixing ring (205). Multiple support rods (206) are rotatably connected to the outer wall of the connecting ring (203), and the multiple support rods (206) are located at the bottom of the protective rods (207). The fixing mechanism (3) includes a telescopic rod (304), which is slidably connected to one end of the protective rod (207) away from the support seat (204). The inner wall of the protective rod (207) is mechanically fixed with a support column (305), and the telescopic rod (304) is sleeved and slidably connected to the outer wall of the support column (305).

2. The fruit tree hail prevention net construction winding and unwinding device according to claim 1, characterized in that: The fixing mechanism (3) further includes a fixing seat (301), which is slidably connected to the top of the base (1) and extends through to the bottom of the base (1), and is sleeved with the outer wall of the limiting post (202) and the threaded rod (201). The outer wall of the fixing seat (301) is sleeved and fixed with a support ring (302), which is slidably connected to the inside of the base (1). The bottom end of the support ring (302) is mechanically fixed with a support spring (303), which is sleeved with the outer wall of the fixing seat (301).

3. The fruit tree hail prevention net construction winding and unwinding device according to claim 1, characterized in that: The bottom end of the base (1) is equipped with multiple casters with self-locking structures. The base (1) is equipped with a servo motor that drives the rotation of the limit post (202). The limit post (202) is mechanically connected to the output end of the servo motor through a coupling.

4. The fruit tree hail prevention net construction winding and unwinding device according to claim 1, characterized in that: The inner wall of the connecting ring (203) is equipped with a slider that matches the thread on the outer wall of the threaded rod (201), and the surface of the connecting ring (203) is provided with a limiting hole that matches the limiting post (202), the limiting post (202) being a square post.

5. The fruit tree hail prevention net construction winding and unwinding device according to claim 1, characterized in that: The support rod (206) and the protective rod (207) are rotatably connected to the connecting ring (203) and the fixing ring (205) respectively through the connecting seat. The top end of the support rod (206) and the bottom end of the protective rod (207) are rotatably connected by a hinge. Hooks are mechanically fixed around the top end of the telescopic rod (304) away from the protective rod (207) and the top end of the support seat (204).

6. The fruit tree hail prevention net construction winding and unwinding device according to claim 2, characterized in that: The protective rod (207) has an internal expansion groove that matches the telescopic rod (304), and the telescopic rod (304) has an internal connection groove that matches the support column (305). The outer wall of the support column (305) is provided with ball bearings at the connection between it and the telescopic rod (304). The bottom end of the fixed seat (301) is set as a conical structure, and the base (1) has an internal expansion groove that matches the fixed seat (301) and the support ring (302).

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