A pulley device for tomato stringing

Abstract

The utility model relates to tomato hanging vine equipment field, especially a kind of pulley device for tomato hanging vine, including two support shafts, pulley and lock mechanism, two support shafts are symmetrically arranged, two support shafts are slidably connected with hook by limiting mechanism, the end of two support shafts away from each other is cylindrical, the end of two support shafts close to each other is conical, pulley is rotatably connected in two support shafts outside, lock mechanism includes fixed plate, two telescopic components and two friction pads. By pushing baffle to make two support shafts close to each other, and then drive two friction pads no longer resist pulley, to release the locking of pulley, by forward rotation pulley, the rope of hanging vine is released, after loosening baffle, two springs are elongated in reaction, and then push two support shafts away from each other, to drive two friction pads resist pulley, realize the locking of pulley, according to the requirement flexible and accurate control the release size of the rope of hanging vine, it is favorable to the growth of tomato vine branch.

Description

Technical Field

[0001] This utility model relates to the field of tomato vine trellising equipment, and in particular to a pulley device for tomato vine trellising. Background Technology

[0002] According to the patent document with publication number CN106069353B, the patent document describes a method where the hook head of a hook is hooked onto a hanging wire, and the extended end of the hanging rope is tied to the plant vine. By pushing the push plate downward, the pulley moves downward and pushes the push rod inward. The push rod then drives the limiting rod to tilt upward with the lower end of the hook as the support point, thereby separating the limiting rod from the notch. The roller rotates under the gravity of the plant vine and lowers the hanging rope. When the plant vine is lowered to the ground, the push plate is pushed upward, the pulley moves upward and drives the push rod to reset, and the limiting rod is driven to re-embed into the notch, stopping the vine from being lowered. In the process of the push rod resetting and causing the limit rod to re-embed into the notch of the roller to stop the release of the vine rope, the number and position of the notches on the roller are fixed. The minimum interval of the vine rope release is one revolution of the roller, which makes it impossible to accurately control the release size of the vine rope. Too loose or too tight is not conducive to the growth of tomato vines. Utility Model Content

[0003] The purpose of this invention is to provide a pulley device for tomato vine support in order to solve the above-mentioned problems.

[0004] This utility model achieves the above objectives through the following technical solutions: A pulley device for trellising tomato vines includes two support shafts, pulleys, and a locking mechanism.

[0005] Two support shafts are symmetrically arranged and are slidably connected by hooks through a limiting mechanism. The ends of the two support shafts that are far apart from each other are cylindrical, and the ends of the two support shafts that are close to each other are conical.

[0006] The pulleys are rotatably connected to the outside of the two support shafts.

[0007] The locking and releasing mechanism includes a fixed plate, two telescopic components, and two friction pads. The fixed plate is fixed inside the pulley, and the friction pads are fixed on the outer wall of the support shaft. The two telescopic components are symmetrically distributed with respect to the fixed plate. The telescopic components drive the support shaft to slide inside the pulley, thereby driving the friction pads to lock and release the pulley.

[0008] Preferably, the telescopic assembly includes a slide rod and an elastic element. The slide rod is fixed to the side of the fixed plate near the support shaft. The support shaft has a groove that slides with the slide rod. The elastic element allows the support shaft to be pushed close to the fixed plate and then automatically reset.

[0009] Preferably, the elastic element is a spring, which is fixed between the fixed plate and the support shaft, and the spring is located on the outside of the slide rod.

[0010] Preferably, the pulley has two conical grooves symmetrically distributed with a fixed plate inside, and the conical end of the support shaft is located inside the conical groove.

[0011] Preferably, the hook includes a bent end and two sleeve ends, the two sleeve ends are fixed on both sides of the bottom of the bent end, and the sleeve ends are located on the outside of the cylindrical end of the support shaft.

[0012] Preferably, the limiting mechanism includes a limiting groove and a limiting plate. The limiting groove is opened at the cylindrical end of the support shaft, and the limiting plate is fixed to the sleeve end of the hook. The limiting plate is slidably connected in the limiting groove.

[0013] Preferably, a baffle is fixed on the side of the cylindrical end of the support shaft away from the pulley, and the friction pad is made of rubber.

[0014] Compared with existing technologies, the beneficial effects are as follows: By pushing the baffle, the two support shafts move closer to each other, thereby causing the two friction pads to stop pressing against the pulley, thus releasing the lock on the pulley. By rotating the pulley in the forward direction, the vine rope is released. After the baffle is released, the two springs extend due to reaction, thereby pushing the two support shafts away from each other, thereby causing the two friction pads to press against the pulley, thus locking the pulley. The release size of the vine rope can be flexibly and accurately controlled according to needs, which is beneficial to the growth of tomato vines. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the pulley device for tomato vine support described in this utility model; Figure 2 This is a side view of a pulley device for tomato vine support as described in this utility model; Figure 3 yes Figure 2 Sectional view at point AA; Figure 4 This is a schematic diagram of the hook structure of a pulley device for tomato vine support as described in this utility model; Figure 5 This is a schematic diagram of the support shaft and sliding groove structure of a pulley device for tomato vine support according to the present invention; Figure 6This is a schematic diagram of the fixing plate and sliding rod structure of a pulley device for tomato vine support as described in this utility model.

[0017] The annotations in the attached figures are explained as follows: 1. Support shaft; 2. Pulley; 3. Hook; 401. Limiting groove; 402. Limiting plate; 501. Fixing plate; 502. Slide rod; 503. Slide groove; 504. Spring; 6. Friction pad. Detailed Implementation

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] The present invention will be further described below with reference to the accompanying drawings: like Figures 1-6 As shown, a pulley device for tomato vine support includes two support shafts 1, pulleys 2, and a locking mechanism.

[0020] Two support shafts 1 are symmetrically arranged. The two support shafts 1 are slidably connected to hooks 3 through a limiting mechanism. Hooks 3 include a bent end and two sleeve ends. The two sleeve ends are fixed on both sides of the bottom of the bent end. The sleeve ends are located outside the cylindrical end of the support shaft 1. The limiting mechanism includes a limiting groove 401 and a limiting plate 402. The limiting groove 401 is opened at the cylindrical end of the support shaft 1. The limiting plate 402 is fixed to the sleeve end of the hook 3 and is slidably connected in the limiting groove 401. The ends of the two support shafts 1 that are far apart from each other are cylindrical, and the ends of the two support shafts 1 that are close to each other are conical. The device is hung on the wire through the bent end of the hook 3. The support shaft 1 is supported by the two sleeve ends of the hook 3. The position of the limiting plate 402 is limited by the limiting groove 401, so that the support shaft 1 cannot rotate during the suspension movement.

[0021] The pulley 2 is rotatably connected to the outside of the two support shafts 1. The pulley 2 has two conical grooves symmetrically distributed with the fixed plate 501. The conical end of the support shaft 1 is located in the conical groove. The outside of the pulley 2 is wrapped with a hanging rope. The hanging rope is released by rotating the pulley 2 in the forward direction and retracted by rotating the pulley 2 in the reverse direction.

[0022] The locking and releasing mechanism includes a fixed plate 501, two telescopic components, and two friction pads 6. The fixed plate 501 is fixed inside the pulley 2, and the friction pads 6 are fixed on the outer wall of the support shaft 1. The two telescopic components are symmetrically distributed around the fixed plate 501. The telescopic components drive the support shaft 1 to slide inside the pulley 2, thereby driving the friction pads 6 to lock and release the pulley 2. A baffle is fixed on the cylindrical end of the support shaft 1 away from the pulley 2. The friction pads 6 are made of rubber. By pushing the two support shafts 1 closer to each other, the two friction pads 6 will no longer press against the pulley 2, thereby releasing the lock on the pulley 2. By pushing the two support shafts 1 further apart, the two friction pads 6 will press against the pulley 2, thereby locking the pulley 2.

[0023] The telescopic assembly includes a slide rod 502 and an elastic element. The slide rod 502 is fixed to the side of the fixed plate 501 near the support shaft 1. The support shaft 1 has a groove 503 that slides with the slide rod 502. The elastic element allows the support shaft 1 to be pushed close to the fixed plate 501 and then automatically reset. The elastic element is a spring 504, which is fixed between the fixed plate 501 and the support shaft 1. The spring 504 is located outside the slide rod 502. Pushing the baffle causes the two support shafts 1 to move closer to each other, causing the two slide rods 502 to slide relative to each other in the two grooves 503. As a result, the two springs 504 are compressed. When the required length of the suspending line is released from the pulley 2, the baffle is released, and the two springs 504 extend in reaction, thereby pushing the two support shafts 1 away from each other.

[0024] Working principle: The device is hung on the wire by the bent end of the hook 3. The hanging rope is wrapped around the outside of the pulley 2. The two sleeve ends of the hook 3 support the support shaft 1. The position of the limiting plate 402 is limited by the limiting groove 401, so that the support shaft 1 cannot rotate during suspension and movement. By pushing the baffle, the two support shafts 1 are brought closer together, so that the two sliding rods 502 slide relative to each other in the two sliding grooves 503. Then the two springs 504 are compressed. The two support shafts 1 are brought closer together, which causes the two friction pads 6 to stop pressing against the pulley 2, thereby releasing the lock on the pulley 2. By rotating the pulley 2 in the forward direction, the hanging rope is released. When the required length of hanging rope is released from the pulley 2, the baffle is released. The two springs 504 extend in reaction, which pushes the two support shafts 1 away from each other, thereby causing the two friction pads 6 to press against the pulley 2, thereby locking the pulley 2. Repeat the above operation. The hanging rope can be retrieved by rotating the pulley 2 in the reverse direction. Adjustments can be made as needed.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A pulley arrangement for tomato stringing, characterised in that: It includes two support shafts (1), pulleys (2), and a locking mechanism; The two support shafts (1) are symmetrically arranged, and the two support shafts (1) are slidably connected to hooks (3) through a limiting mechanism. The ends of the two support shafts (1) that are far apart from each other are cylindrical, and the ends of the two support shafts (1) that are close to each other are conical. The pulley (2) is rotatably connected to the outside of the two support shafts (1); The locking and releasing mechanism includes a fixed plate (501), two telescopic components and two friction pads (6). The fixed plate (501) is fixed inside the pulley (2), and the friction pads (6) are fixed on the outer wall of the support shaft (1). The two telescopic components are symmetrically distributed with respect to the fixed plate (501). The telescopic components drive the support shaft (1) to slide inside the pulley (2), thereby driving the friction pads (6) to lock and release the pulley (2).

2. A pulley arrangement for tomato stringing according to claim 1, characterised in that: The telescopic assembly includes a slide rod (502) and an elastic element. The slide rod (502) is fixed on the side of the fixed plate (501) near the support shaft (1). The support shaft (1) has a groove (503) that slides with the slide rod (502). The elastic element causes the support shaft (1) to automatically reset after being pushed close to the fixed plate (501).

3. A pulley arrangement for tomato stringing according to claim 2, characterised in that: The elastic element is a spring (504), which is fixed between the fixed plate (501) and the support shaft (1). The spring (504) is located outside the slide rod (502).

4. A pulley arrangement for tomato stringing according to claim 1, characterised in that: The pulley (2) has two conical grooves symmetrically distributed with respect to the fixed plate (501), and the conical end of the support shaft (1) is located in the conical groove.

5. A pulley device for tomato stringing according to claim 1, characterized in that: The hook (3) includes a bent end and two sleeve ends, which are fixed on both sides of the bottom of the bent end and are located outside the cylindrical end of the support shaft (1).

6. A pulley arrangement for tomato stringing according to claim 5, characterised in that: The limiting mechanism includes a limiting groove (401) and a limiting plate (402). The limiting groove (401) is opened at the cylindrical end of the support shaft (1), and the limiting plate (402) is fixed at the sleeve end of the hook (3). The limiting plate (402) is slidably connected in the limiting groove (401).

7. A pulley arrangement for tomato stringing according to claim 5, characterised in that: A baffle is fixed to the cylindrical end of the support shaft (1) away from the pulley (2), and the friction pad (6) is made of rubber.

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