A single-person-operable folding irrigation truss

Abstract

This utility model discloses a folding irrigation truss that can be operated by a single person. The truss includes multiple folding sections, each comprising a pin-connected folding section and a locking folding section connected by a shaft. The pin-connected folding section has a spring-loaded latch, and the locking folding section has a locking latch. When the pin-connected and locking folding sections are closed, the pin on the spring-loaded latch engages with the locking latch, locking both sections. The pin on the spring-loaded latch has an unlocking ring with a pull rope attached. The other end of the pull rope is anchored along the truss at a folding section away from the truss's center point or at the end of the truss. This utility model eliminates the need for tools such as wrenches and hammers; the operator only needs to gently pull the rope lock along the truss's axial direction to unfold or fold the truss alone, reducing labor costs and improving work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of irrigation trusses, and in particular to a folding irrigation truss that can be operated by a single person. Background Technology

[0002] In agricultural production, efficient water-saving irrigation has always been a key link in ensuring crop growth and improving water resource utilization. Traditional surface irrigation methods not only waste water resources but also easily cause soil compaction, affecting crop root growth, and are difficult to irrigate evenly over large areas of farmland. With the development of large-scale and intensive agriculture, the demand for advanced irrigation equipment is becoming increasingly urgent.

[0003] The reel-type sprinkler irrigation machine was developed to meet this need. With its advantages of strong adaptability, ease of movement, high degree of automation, and low investment per unit area, it has become a suitable mechanized irrigation device for my country's national conditions. During operation, the sprinkler truck moves while spraying water, pulled by the water delivery pipe, achieving gradual irrigation from the edge of the farmland towards the reel.

[0004] Meanwhile, the truss structures used to support irrigation components such as sprinklers are also constantly evolving. Early trusses were mostly fixed structures with non-adjustable lengths, making it difficult to adapt to the varying spacing between crop rows and complex terrains. Moreover, the large and fixed trusses caused numerous inconveniences during transportation and transfer, limiting the flexibility and application range of the equipment. Folding irrigation trusses were developed to solve these problems. They can be unfolded when needed to meet the required irrigation coverage area, and folded up when not in use, facilitating the movement and storage of the equipment.

[0005] However, traditional folding trusses have the drawback of complex folding operations in practice: they usually require two people to work together to unfold and secure them. One person needs to hold the main body of the truss and open the folding joints one by one, while the other person needs to simultaneously insert bolts at the folds and tighten them. This operation method is labor-intensive and seriously affects the efficiency of irrigation operations. Summary of the Invention

[0006] In view of the above-mentioned defects or deficiencies in the prior art, the present invention provides a folding irrigation truss that can be operated by a single person, replacing bolt fixing. It can be unfolded and locked by a single person, reducing labor costs and improving work efficiency.

[0007] The purpose of this utility model is achieved as follows:

[0008] A foldable irrigation truss operable by a single person includes a foldable irrigation truss comprising multiple folding sections. Each folding section includes a pin-type folding section and a locking folding section connected by a shaft. The pin-type folding section is provided with a spring-loaded buckle, and the locking folding section is provided with a locking buckle. When the pin-type folding section and the locking folding section are closed, the pin on the spring-loaded buckle can engage with the locking buckle, locking the pin-type folding section and the locking folding section. The pin on the spring-loaded buckle is provided with a release pull ring, and the release pull ring is attached to a pull rope. The other end of the pull rope is anchored along the irrigation truss at a folding section away from the center point of the truss or at the end of the truss.

[0009] Furthermore, the spring buckle includes a pin, a spring, a limiting pin, a first mounting base, and a second mounting base; the first and second mounting bases are fixedly connected to the folded portion of the pin at a distance, and the first and second mounting bases are provided with coaxial through holes; the pin is a slender rod with a positioning hole, one end of which is provided with a release pull ring, and the other end passes through the first mounting base, the spring, and the second mounting base in sequence, and then inserts the limiting pin into the positioning hole on the pin located between the first and second mounting bases, the limiting pin limiting the spring sleeved on the pin between the first mounting base and the limiting pin; one end of the pin with the pull ring is stuck on the first mounting base, and the other end protrudes from the second mounting base, the protruding end being used to lock the buckle.

[0010] Furthermore, a fixed pulley is provided on the folded part of the pin, and the pull rope passes through the fixed pulley to change the traction direction of the pull rope.

[0011] Furthermore, the latch is a metal plate with a through hole, and its installation position corresponds to the pin of the spring clip.

[0012] Furthermore, the latch includes a fixed latch plate and a movable latch connected by a latch pivot, the installation position of which corresponds to the pin of the spring buckle; when the folded part of the pin and the folded part of the latch are closed, the pin on the spring buckle can first automatically push up the movable latch, and then fall down to reset itself, fixing the pin in the latch.

[0013] Furthermore, the movable latch includes a limiting piece for limiting the position, and the angle of attack of the movable latch is 40°-65°.

[0014] The beneficial effects of this utility model are: a folding irrigation truss that can be operated by a single person, without the need for tools such as wrenches and hammers. The operator only needs to pull the rope lock lightly along the truss axis to unfold or fold the truss by a single person, which reduces labor costs and improves work efficiency.

[0015] The present invention will be further explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the folding truss structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the folding section of the folding truss of this utility model;

[0018] Figure 3 This is a schematic diagram of the A-direction structure of the folding pin folding part of the folding truss of this utility model;

[0019] Figure 4 This is a schematic diagram of the locking structure of Embodiment 2 of the folding truss of this utility model;

[0020] Figure 5 This is a top view schematic diagram of the locking structure of Embodiment 2 of the folding truss of this utility model;

[0021] Figure 6 This is a schematic diagram of the movable locking structure of Embodiment 2 of the folding irrigation truss of this utility model;

[0022] Figure 7 This is a schematic diagram of the folding section structure of Embodiment 3 of the folding truss of this utility model.

[0023] In the diagram: 1 Walking drive device, 2 Irrigation truss, 3 Folding part, 10 Spring buckle, 20 Locking buckle, 31 Pin folding part, 32 Locking buckle folding part, 33 Shaft, 101 Pin, 102 Second mounting seat, 103 Limiting pin, 104 Spring, 105 First mounting seat, 106 Unlocking ring, 107 Fixed pulley, 108 Pull rope, 110 Fixing frame, 201 Locking buckle pivot, 202 Fixed locking buckle plate, 203 Movable locking buckle, 204 Limiting plate, α Angle of attack. Detailed Implementation

[0024] Example 1:

[0025] A folding pouring truss that can be operated by a single person, such as Figure 1-3 As shown, it is typically used in conjunction with a reel-type sprinkler for irrigation of farmland. It includes a walking drive unit 1 and a foldable irrigation truss 2. The truss serves as a support for the water supply pipeline, distributing water from the pump to each sprinkler head to form a complete water supply chain.

[0026] The grouting truss 2 includes multiple folding sections 3, each folding section 3 including a pin folding section 31 and a locking folding section 32 connected by a shaft 33, through which the grouting truss 2 can be extended or folded.

[0027] A spring buckle 10 is provided on the folded part 31 of the pin, and a lock buckle 20 is provided on the folded part 32 of the lock. When the truss 2 is unfolded, the folded part 31 of the pin and the folded part 32 of the lock are closed, and the pin 101 on the spring buckle 10 can be engaged with the lock buckle 20 to lock the folded part 31 of the pin and the folded part 32 of the lock. The pin 101 of the spring buckle 10 is provided with a release pull ring 106, and the release pull ring 106 is attached with a pull rope 108. The other end of the pull rope 108 is anchored along the truss 2 at a folded part 3 away from the center point of the truss or at the end of the truss.

[0028] like Figure 2-3 As shown, the spring clip 10 is horizontally mounted on the pin folding part 31. It can be fixedly connected to the pin folding part 31 by the fixing bracket 110, or it can be directly fixedly mounted on the pin folding part 31. The connection methods include welding and bolt connection.

[0029] The spring buckle 10 includes a pin 101, a spring 104, a limiting pin 103, a first mounting base 105, and a second mounting base 102. The first mounting base 105 and the second mounting base 102 are fixedly connected to the pin folding part 31 at intervals. The first mounting base 105 and the second mounting base 102 are provided with coaxial through holes (not shown in the figure). The pin 101 is a slender rod with a positioning hole (not shown in the figure). One end of the pin 101 is provided with an unlocking pull ring 106. The other end passes through the through hole of the first mounting base 105, the spring 104, and the through hole of the second mounting base 102 in sequence, and then the limiting pin 103 is inserted into the positioning hole. The limiting pin 103 restricts the spring 104, which is sleeved on the pin 101, between the first mounting base 105 and the limiting pin 103.

[0030] The pin 101 with a pull ring has one end locked to the outside of the first mounting base 105, and the other end protruding from the second mounting base 102. The protruding end is used to lock the latch 20. Pulling the pull rope 108 causes the pin 101 to move away from the latch 20. The limiting pin 103 compresses the spring 104 sleeved on the pin 101 between the first mounting base 105 and the limiting pin 103. The compression of the spring 104 generates potential energy. At this time, the pin 101 is still located between the first mounting base 105 and the second mounting base 102. Loosening the pull rope 108 causes the spring 104 to rebound, pushing the limiting pin 103 and causing the pin 101 to reset.

[0031] The latch 20 is a metal plate with a through hole, and its installation position corresponds to the pin 101 of the spring latch 10. The exposed end of the pin 101 can be inserted into the through hole to lock. When unlocking is required, the pull rope 108 is pulled to make the pin 101 exit the through hole, thereby releasing the lock.

[0032] A fixed pulley 107 is provided on the folding part 31 of the pin, and the pull rope 108 passes through the fixed pulley 107 to change the traction direction of the pull rope 108.

[0033] The usage method is as follows:

[0034] When the irrigation truss is in the folded state, it is moved to the field by the walking drive device 1. A single person pushes the truss to unfold it. When the pin folding part 31 of the folding part 3 and the locking folding part 32 are closed, the pull rope 108 is pulled, so that the pin 101 of the spring buckle 10 is engaged with the locking buckle 20, thus completing the structural locking.

[0035] Folding and storage: After irrigation, pull the rope 108 fixed to the release ring 106, the pin 101 disengages from the lock 20, and pushes the truss to fold, making it easy to transport and store.

[0036] Example 2:

[0037] This embodiment is another implementation of Embodiment 1, such as... Figure 4-6 As shown, the difference lies in that the latch 20 consists of two fixed latch plates 202 and one movable latch 203 made of metal, similar to a sandwich structure design. The two fixed latch plates 202 are symmetrically distributed on the outer side, and their edges are rigidly connected to the mating surface of the latch folding part 32 by welding or bolts. The movable latch 203 is placed in the middle of the two fixed latch plates 202 and is rotatably connected by a latch pivot 201, with a retaining spring at the pivot for elastic reset.

[0038] The fixed locking plate 202 has a rectangular notch groove on the side away from the locking shaft 201. The movable locking buckle 203 is a metal piece with a beveled end, similar to a hook, and a through hole for connecting the locking shaft 201 at the other end. The bevel is located at the notch groove of the fixed locking plate 202. The installation position of the notch groove of the fixed locking plate 202 corresponds to the pin 101 of the spring buckle 10. When the pin folding part 31 and the locking buckle folding part 32 are closed, the pin 101 on the spring buckle 10 can lift the movable locking buckle 203. Then the movable locking buckle 203 is reset by the elasticity of the snap ring or by gravity, locking the pin 101 in the locking buckle 20.

[0039] The movable latch 203 has a limiting piece 204 on its upper part. When the movable latch 203 is in the locked position, the limiting piece 204 is in contact with the upper end surface of the fixed latch plate 202. The angle of attack α (the angle between the inclined plane leading to the pin and the vertical plane) of the movable latch 203 is 40°-65°.

[0040] When the pin 101 enters the latch 20 during the closing action of the folding part, the cylindrical surface of the pin 101 contacts the inclined surface of the movable latch 203. With the closing force, an upward component force is generated, which pushes the movable latch 203 to rotate upward around the latch pivot 201. When the pin 101 is fully inserted into the slot of the movable latch 203, the movable latch 203 resets under its own gravity (or the retaining spring elastically resets), and the limiting piece 204 fits against the upper end surface of the fixed latch plate 202, realizing automatic locking.

[0041] Example 3:

[0042] This embodiment is another implementation of Embodiment 1, such as... Figure 7 As shown, the spring clip 10 is vertically mounted on the pin folding part 31 and is fixedly connected to the pin folding part 31 by the fixing bracket 110.

[0043] The locking hole of the latch 20 corresponds to the pin 101 of the spring buckle 10; the exposed end of the pin 101 can be inserted into the locking hole to lock; when unlocking is required, the pull rope 108 is pulled to make the pin 101 exit the locking hole, thereby releasing the lock.

[0044] Finally, it should be noted that the above is only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the preferred arrangement, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model.

Claims

1. A single-person-operable folding formwork truss comprising a foldable formwork truss (2) comprising a plurality of folds (3), characterized in that, The folding part (3) includes a pin folding part (31) and a latch folding part (32) connected by a shaft (33). The pin folding part (31) is provided with a spring buckle (10), and the latch folding part (32) is provided with a latch (20). When the pin folding part (31) and the latch folding part (32) are closed, the pin (101) on the spring buckle (10) can be engaged with the latch (20) to lock the pin folding part (31) and the latch folding part (32). The pin (101) of the spring buckle (10) is provided with an unlocking pull ring (106), and the unlocking pull ring (106) is attached with a pull rope (108). The other end of the pull rope (108) is anchored along the truss (2) at a folding part (3) away from the center point of the truss or at the end of the truss.

2. The single-man-operable folding propping truss according to claim 1, wherein, The spring buckle (10) includes a pin (101), a spring (104), a limiting pin (103), a first mounting base (105), and a second mounting base (102); the first mounting base (105) and the second mounting base (102) are fixedly connected to the pin folding part (31) at intervals, and the first mounting base (105) and the second mounting base (102) are provided with coaxial through holes; the pin (101) is a slender rod with a positioning hole, one end of the pin (101) is provided with an unlocking pull ring (106), and the other end passes through the first mounting base (105) in sequence. 5) After the spring (104) and the second mounting base (102) are in place, the limiting pin (103) is inserted into the positioning hole on the pin (101) located between the first mounting base (105) and the second mounting base (102). The limiting pin (103) limits the spring (104) sleeved on the pin (101) between the first mounting base (105) and the limiting pin (103). One end of the pin (101) with a pull ring is stuck on the first mounting base (105), and the other end protrudes from the second mounting base (102). The protruding end is used to lock the buckle (20).

3. The single-man-operable folding propping truss according to claim 1, wherein, A fixed pulley (107) is provided on the folding part (31) of the pin, and the pull rope (108) passes through the fixed pulley (107) to change the traction direction of the pull rope (108).

4. The single-man-operable folding propping truss in accordance with claim 1, wherein, The latch (20) is a metal plate with a through hole, and its installation position corresponds to the pin (101) of the spring clip (10).

5. The single-man-operable folding propping truss in accordance with claim 1, wherein, The latch (20) includes two fixed latch plates (202) and a movable latch (203) symmetrically distributed on the outside, connected by a latch pivot (201). The fixed latch plates (202) have a notch or groove on the side away from the latch pivot (201). The movable latch (203) is a metal piece with a beveled end similar to a hook, with the bevel located at the notch or groove of the fixed latch plate (202). The notch or groove of the fixed latch plate (202) is installed at a position corresponding to the pin (101) of the spring clip (10). When the folded part (31) of the pin and the folded part (32) of the latch are closed, the pin (101) on the spring clip (10) can lift the movable latch (203), and then the movable latch (203) falls down and resets itself, locking the pin (101) in the latch (20).

6. A single-man-operable folding propping truss according to claim 5, wherein, The movable latch (203) includes a limiting piece (204) for limiting the position, and the angle of attack (α) of the movable latch (203) is 40°-65°.

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