Spray head structure of device for ecological restoration of side slope

Abstract

The invention relates to the technical field of spray-seeding equipment, in particular to a spray head structure of a device for ecological restoration of a side slope, and aims to solve the problems that in traditional spray-seeding construction, the angle of a spray head is fixed, and the spray head cannot accurately adapt to terrain changes caused by different gradients or obstacles, so that coverage is uneven, and dead angles are omitted. Comprising a spraying pipe which is provided with a repairing nozzle and an adjusting assembly, and the repairing nozzle is located at a spraying opening of the spraying pipe; the repairing nozzle is a spherical shell and provided with spraying holes in the surface, an inner cavity of the repairing nozzle faces the spraying pipe, and the adjusting assembly is used for rotating or moving the repairing nozzle and changing the radial position or the axial position of the spraying holes relative to the spraying pipe. The repairing spray head is a spherical shell capable of rotating or axially moving, and spray holes are formed in the surface of the spherical shell, so that the orientation and position of a spray opening can be flexibly adjusted, fine adjustment of the spray angle and range in any direction and any depth is achieved, complex terrains can be accurately covered, and the uniformity and efficiency of ecological repairing are improved.

Description

Technical Field

[0001] The invention relates to the technical field of spraying equipment, and in particular to a spray head structure of a device for slope ecological restoration. Background Art

[0002] Currently, spraying (seeding) is commonly used in slope ecological restoration, utilizing eco-concrete (vegetated concrete) to achieve slope protection and ecological restoration. A mixture containing seeds, nutrient soil, water-retaining agents, binders, fiber materials, and microbial substrates is sprayed onto the slope surface at high speed to achieve rapid vegetation coverage and soil consolidation. To ensure the material's low carbon and environmental friendliness, and to provide better site conditions for plant growth, cement is replaced with a low-carbon gel material to enhance substrate adhesion and erosion resistance. Typical spraying equipment consists of a high-pressure pump, a delivery pipeline, and a nozzle. The nozzle is the key component for controlling the spray pattern, distance, and direction.

[0003] Most existing nozzles are straight tubes or simple conical nozzle structures, which do not have the functions of precise spray direction adjustment and stepless range control. The spray direction is single, and it is difficult to adjust the nozzle direction according to the slope, uneven terrain or obstacles, resulting in dead corners in the spraying area, uneven coverage, and poor repair effect; for example, patent CN202410632698.2 discloses a supporting spraying equipment for mine ecological restoration, and patent CN202321890595.3 discloses a spraying equipment for grassland ecological restoration and management. Both combine the terrain to increase a certain spraying range, but due to the fixed nozzle direction and limited fluid path, some spraying devices are difficult to achieve long-distance, high-point spraying, especially on steep slopes or areas that need to cross obstacles, and it is difficult to achieve comprehensive and effective spraying.

[0004] Repair materials are typically high-viscosity matrices containing fibers and aggregates, which tend to accumulate, entangle, and deposit at sharp angles when passing through straight nozzles, leading to frequent blockage of the nozzles. Maintenance is difficult: existing nozzles are difficult to disassemble and clean, resulting in long downtime when blocked on site, reducing construction efficiency.

[0005] Therefore, how to achieve multi-degree-of-freedom adjustment of the nozzle's spray direction, stepless or step-by-step adjustment of the range, and improve anti-clogging performance under high abrasion and high fiber content conditions without relying on electronic control systems and external air sources has become a key technology for improving the efficiency and quality of slope ecological spraying. Summary of the Invention

[0006] The technical problem to be solved by the present invention is the spraying equipment for slope repair. Due to the problems of repair materials and slope terrain, it is difficult for the nozzle to adjust the angle to spray and repair the slope. The purpose is to provide a nozzle structure for a slope ecological restoration device to solve the above problem.

[0007] The application is achieved by the following technical solutions: A nozzle structure of a slope ecological restoration device, comprising a spraying device and a spray pipe arranged on the spraying device, wherein a restoration nozzle and an adjusting assembly are arranged on the spray pipe, and the restoration nozzle is located at a spraying port of the spray pipe; The restoration nozzle is a spherical shell with a spraying hole arranged on the surface thereof, and an inner cavity of the restoration nozzle faces the spray pipe, and the adjusting assembly is used to rotate or move the restoration nozzle to change a radial position or an axial position of the spraying hole relative to the spray pipe.

[0008] In the above technical solution, the restoration nozzle is a rotatable or axially movable spherical shell with a spraying hole arranged on the surface thereof, so that the direction and position of the nozzle can be flexibly adjusted, the spray angle and range can be finely adjusted in any direction and at any depth, the complex terrain can be accurately covered, and the uniformity and efficiency of ecological restoration are improved.

[0009] In some optional technical solutions, the adjusting assembly comprises a limiting sleeve, the limiting sleeve is located in the spray pipe, a transition curved surface is arranged on one side of the limiting sleeve facing the restoration nozzle, and the transition curved surface is a spherical surface structure capable of rotating with the restoration nozzle.

[0010] In the above technical solution, the limiting sleeve provides reliable rotation guidance for the spherical shell, and the limiting sleeve ensures that the spherical shell does not be radially or axially dislocated during rotation, thereby enhancing the stability and controllability of the overall structure.

[0011] In some optional technical solutions, the limiting sleeve is slidingly connected to the inner wall of the spray pipe, a through hole is arranged on one side of the restoration nozzle facing the limiting sleeve, and the diameter of the through hole is greater than the diameter of the spraying hole.

[0012] In the above technical solution, the limiting sleeve is rotationally connected to the inner wall of the spray pipe, and the diameter of the through hole of the restoration nozzle is greater than the diameter of the spraying hole, so that the restoration material can smoothly pass through, the through hole ensures that the spray pipe and the restoration nozzle are not blocked, and the risk of blockage is reduced.

[0013] In some optional technical solutions, the adjusting assembly further comprises an adjusting support, the adjusting support is slidingly connected to the outer peripheral wall of the spray pipe, a plurality of adjusting blocks are arranged on the outer peripheral wall of the adjusting support, a plurality of through grooves corresponding to the adjusting blocks are arranged on the outer periphery of the spray pipe close to the spraying port, a plurality of sliding grooves corresponding to the through grooves are arranged on the outer peripheral wall of the limiting sleeve, one end of the adjusting block is slidingly connected to the adjusting support, and the other end is slidingly connected to the sliding groove.

[0014] In the above technical solution, a slidable adjustment support and its adjustment block are set on the outer wall of the nozzle. Through the cooperation of the adjustment block and the limiting sleeve slide groove, the rotation or axial movement of the repair nozzle can be realized. The angle and position can be quickly locked during construction, further improving the injection accuracy and construction quality.

[0015] In some optional technical solutions, a plurality of pressure blocks corresponding to the adjustment block are provided on the outer peripheral wall of the repair nozzle, the adjustment block is in a U-shaped structure, and the pressure blocks are located in the opening of the adjustment block.

[0016] In the above technical solution, the pressure block and the adjustment block cooperate to prevent the repair nozzle from deflecting or loosening during high-pressure spraying, so that the nozzle can still maintain the set position and operate stably under high-pressure environment.

[0017] In some optional technical solutions, the pressing block is located on the diameter of the repair nozzle passing through the center of the sphere, the pressing block is parallel to the adjustment support, and there is a distance between the limiting sleeve and the pressing block.

[0018] In the above technical solution, while ensuring the positioning of the pressing block, a gap is reserved to allow the spherical shell to rotate freely, taking into account both sealing and rotation flexibility.

[0019] In some optional technical solutions, the length of the sliding groove is smaller than the length of the limiting sleeve.

[0020] In the above technical solution, the length of the slide groove is smaller than the length of the limiting sleeve, so that the adjustment stroke is limited, which can avoid excessive movement resulting in departure from the limiting area, thereby improving the accuracy and safety of position control.

[0021] In some optional technical solutions, a plurality of return springs are provided on one side of the limiting sleeve corresponding to the pressure block, a buckle is provided on the side of the adjustment block facing the outside, and a block that cooperates with the buckle is provided on the side of the adjustment support close to the adjustment block.

[0022] In the above technical solution, the repair nozzle is automatically reset and locked after the external force is released through the combination of the reset spring and the snap lock.

[0023] In some optional technical solutions, the edge of the through hole of the limiting sleeve is chamfered, and the chamfered surface faces the repair nozzle.

[0024] In the above technical solution, the chamfer design reduces the erosion and wear at the junction of the nozzle hole and the through hole, and helps the repair material to pass smoothly, further reducing blockage and local wear, and can scrape off the adhering material on the outer wall of the repair nozzle after the repair nozzle is reset.

[0025] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. The repair nozzle in the present invention is a spherical shell. By cooperating with the transition surface on the limiting sleeve, the adjustable support can realize arbitrary angle rotation and axial position fine-tuning, thereby realizing the adjustment of the spray angle and range. It can quickly realize ecological restoration for slopes with different slopes, uneven terrain and obstacle areas. The spherical spray cavity makes the material sprayed in a beam shape, which can make the repair material cover more evenly and without omissions. 2. The repair material in the present invention enters the limiting sleeve through the nozzle and is directly sprayed out through the repair nozzle. The inner cavity of the spherical repair nozzle has no dead corners and corners, and the repair material is not easy to be retained or adhered to the repair nozzle, which can effectively prevent blockage; after the repair nozzle rotates, the position of the spray hole is changed, and the sprayed repair material can be flushed on the repair nozzle, scraping off the residual material on the repair nozzle and taking it out together, further improving the anti-blocking ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings: Figure 1 It is a structural schematic diagram of the present invention; Figure 2 is a cross-sectional view of the present invention; Figure 3 An exploded view of the present invention; Figure 4 This is a schematic diagram of the structure of the repair nozzle after adjusting the angle in Example 2 of the present invention; Figure 5 This is a schematic diagram of the structure of the repair nozzle after axial movement in Example 3 of the present invention.

[0027] The reference numerals represent: 1. Nozzle; 11. Through slot; 2. Repair nozzle; 21. Spray hole; 22. Press block; 3. Limit sleeve; 31. Slide groove; 4. Adjustment support; 41. Adjustment block. DETAILED DESCRIPTION

[0028] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the examples and accompanying drawings. The exemplary embodiments of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention. It should be noted that the present invention is already in the actual development and use stage.

[0029] Example 1 like Figures 1 to 3 As shown, this embodiment provides a nozzle structure for a slope ecological restoration device, including a spraying device and a nozzle 1 provided on the spraying device, a repair nozzle 2 and an adjustment component provided on the nozzle 1, and the repair nozzle 2 is located at the injection port of the nozzle 1; The repair nozzle 2 is a spherical shell with a spray hole 21 on its surface. The inner cavity of the repair nozzle 2 faces the nozzle 1. The adjustment component is used to rotate or move the repair nozzle 2 to change the radial position or axial position of the spray hole 21 relative to the nozzle 1.

[0030] like Figure 2 and Figure 3 As shown, the adjustment component includes a limiting sleeve 3, which is located in the nozzle 1. The limiting sleeve 3 is provided with a transition surface on the side facing the repair nozzle 2. The transition surface is a spherical structure that can rotate with the repair nozzle 2.

[0031] like Figure 2 and Figure 3 As shown, the limiting sleeve 3 is slidably connected to the inner wall of the nozzle 1 , and a through hole is opened on the side of the repair nozzle 2 facing the limiting sleeve 3 , and the diameter of the through hole is larger than the diameter of the injection hole 21 .

[0032] Specifically, a feed pipe is connected to the side of the nozzle 1 away from the injection port, which is used to transport the repair material and spray it out from the nozzle 1. A pressure pump is also provided on the nozzle 1, and the pressure pump is used to provide pressure for the sprayed repair material. In this embodiment, the repair material is fed into the nozzle 1 through the feed pipe, and then the pressure is provided by the pressure pump to spray the material. After passing through the limiting sleeve 3 and the repair nozzle 2, the material is sprayed out from the injection hole 21, and the material is evenly coated on the slope.

[0033] In this embodiment, when spraying materials, when the materials are sprayed out through the repair nozzle 2, the repair nozzle 2 is a spherical shell, which can gather the materials into a beam and spray them along the spray hole 21. The beam streamlines are stable, the landing point is more controllable, the deposition amount of materials at the same position is more uniform, and the impact force will be concentrated, the flow rate is higher, and it can be better sprayed in the depression during the subsequent repair of the depression area, thereby improving the adhesion.

[0034] Example 2 like Figures 1 to 4 As shown, the adjustment assembly also includes an adjustment support 4, which is slidably connected to the outer peripheral wall of the nozzle 1. A number of adjustment blocks 41 are provided on the outer peripheral wall of the adjustment support 4. A number of through grooves 11 corresponding to the adjustment blocks 41 are opened on the outer periphery of the nozzle 1 near the injection port, and a number of slide grooves 31 corresponding to the through grooves 11 are opened on the outer peripheral wall of the limiting sleeve 3. One end of the adjustment block 41 is slidably connected to the adjustment support 4, and the other end is slidably connected in the slide groove 31.

[0035] like Figure 3 As shown, a plurality of pressing blocks 22 corresponding to the adjusting block 41 are provided on the outer peripheral wall of the repair nozzle 2 . The adjusting block 41 is in a U-shaped structure, and the pressing blocks 22 are located in the opening of the adjusting block 41 .

[0036] like Figure 2 and Figure 4As shown, the pressing block 22 is located on the diameter of the repair nozzle 2 passing through the spherical center, the pressing block 22 is parallel to the adjustment support 4, and there is a distance between the limiting sleeve 3 and the pressing block 22.

[0037] The length of the sliding groove 31 is smaller than the length of the limiting sleeve 3 .

[0038] A plurality of return springs are provided on one side of the limiting sleeve 3 corresponding to the pressure block 22 , a buckle is provided on the side of the adjustment block 41 facing the outside, and a block that cooperates with the buckle is provided on the side of the adjustment support 4 close to the adjustment block 41 .

[0039] It should be noted that when spraying the slope, the nozzle of the nozzle 1 should be kept perpendicular to the slope surface, with an adjustable deviation of 15°; the slope terrain is naturally formed, so there will be some undulating terrain, such as the local slope surface of the slope may have different inclination angles, and there may be depressions, protrusions and local obstacles. In most cases, if the angle of the nozzle of the nozzle 1 is not adjusted, the sprayed material is difficult to be evenly coated on these undulating terrains, resulting in the material being sprayed outside the target area or missing the depressed area, resulting in uneven repair.

[0040] In this embodiment, when adjusting the position of the injection hole 21 of the repair nozzle 2, that is, adjusting the injection angle, the repair nozzle 2 can be rotated accordingly by toggling the adjustment block 41 on the adjustment support 4; specifically, the adjustment support 4 in this embodiment is annular, and the number of adjustment blocks 41 is 4 and distributed in an annular array, and the number of pressure blocks 22 and through grooves 11 is also 4. A limiting groove for sliding the adjustment block 41 is provided on the adjustment support 4, and grooves are also provided on the two side walls of the limiting groove. Wing plates slidably connected to the grooves are provided on both sides of the adjustment block 41. The adjustment block 41 is slidably connected in the limiting groove, and the wing plate is slidably connected in the groove. The groove is also used to limit the wing plate to prevent the adjustment block 41 from losing its limit and falling; after the sliding adjustment block 41 moves to a certain position, it can be buckled onto the adjacent block of the adjustment support 4 by a buckle to limit the movement of the adjustment block 41, thereby achieving positioning and fixation.

[0041] like Figure 4 As shown, by pressing the adjustment block 41, the adjustment block 41 moves downward and drives the pressure block 22 on the repair nozzle 2 to move together. Although the adjustment block 41 moves linearly, the bottom of the spherical repair nozzle 2 rotates in coordination with the transition surface of the limiting sleeve 3. Therefore, when the pressure block 22 moves, the spherical repair nozzle 2 will rotate toward the pressure block 22 on that side. When the repair nozzle 2 rotates, the position of the injection hole 21 will also rotate, while the nozzle 1 remains unchanged, that is, the effect of changing the injection angle is achieved.

[0042] After the angle of the repair nozzle 2 is changed, it can be fastened to the card block by the buckle to prevent the adjustment block 41 from rebounding or continuing to move. At the same time, when the pressure block 22 moves, the return spring at the bottom is compressed; preferably, as Figure 2 As shown, in the initial state, the distance between the adjusting block 41 and the limiting sleeve 3 should meet the position height of the upward movement of the pressing block 22 to avoid the upward movement of the pressing block 22 being limited, resulting in the repair nozzle 2 being unable to rotate to the required angle, and there is a certain distance between the top of the adjusting block 41 and the limiting groove on the adjusting support 4. When the pressing block 22 moves downward, the pressing block 22 on the opposite side moves upward, and finally becomes Figure 4 In the structural form, when the repair nozzle 2 needs to be reset, the limit of the buckle on the downward pressing block 22 is released, the reset spring is no longer compressed, and the top contact pressure block 22 is reset. In particular, after long-term use, when the elasticity of the reset spring is poor, the position of the repair nozzle 2 can also be adjusted by moving the adjustment block 41 on the opposite side downward.

[0043] It should also be noted that an annular groove is provided on the inner circumferential wall of the nozzle 1 near the repair nozzle 2, and a retaining ring is detachably connected to the annular groove. The diameter of the retaining ring is smaller than the diameter of the repair nozzle 2. The retaining ring is used to contact and limit the outer circumferential wall of the repair nozzle 2. The retaining ring can make the repair nozzle 2 rotate only along the retaining ring on the transition surface of the limiting sleeve 3. During construction, the repair nozzle 2 is inverted toward the construction slope, and the retaining ring will prevent the repair nozzle 2 from sliding and lock it on the limiting sleeve 3.

[0044] In particular, the bottom of the adjusting block 41 near the limiting sleeve 3 is an elastic structure, and the bottoms of several adjusting blocks 41 are retracted toward the central axis of the limiting sleeve 3. Several adjusting blocks 41 distributed in an equidistant annular array are retracted toward the limiting sleeve 3 together to form a clamping force, and the adjusting block 41 can be fixed to the adjusting support 4 by a snap buckle. Therefore, under the clamping of the adjusting block 41, the limiting sleeve 3 can be stably limited in the nozzle 1 and move with the movement of the adjusting block 41. The repair nozzle 2 is also stably cooperated with the limiting sleeve 3 under the joint limitation of the retaining ring and the adjusting block 41 to realize rotation; in order to better achieve this effect, the total length of the limiting sleeve 3 should be within the clamping range of the adjusting block 41 to avoid the tail end being too long and affecting the clamping stability.

[0045] Example 3 Based on the content described in Example 1, the present invention is used for repairing slopes. In special slope terrains, such as steep slopes, the presence of retaining walls and guardrails, or excessively high slopes, the normal range cannot effectively spray on the slope.

[0046] like Figure 5As shown, in this embodiment, the axial position of the repair nozzle 2 in the nozzle 1 can be adjusted by moving the adjustment support 4. One end of the U-shaped adjustment block 41 is located on the adjustment support 4, and the other end is located in the slide groove 31 of the limiting sleeve 3. The adjustment support 4 is controlled to move toward the injection port of the nozzle 1. The bottom of the adjustment block 41 will rest against the top of the slide groove 31 of the limiting sleeve 3. Several adjustment blocks 41 drive the limiting sleeve 3 to slide in the nozzle 1 through the slide groove 31, thereby changing the position of the repair nozzle 2. The closer the repair nozzle 2 is to the injection port of the nozzle 1, the closer the repair nozzle 2 is to the injection port, the faster the ejected material flow beam will leave the nozzle wall of the nozzle 1, and will not be easily disturbed by the inner wall of the nozzle 1. The flow beam will be more concentrated, the flight will be more stable, and the range will be higher.

[0047] Based on the retaining ring in Example 2, in this embodiment, the position of the repair nozzle 2 can be adjusted and then the retaining ring can be placed to limit the position of the repair nozzle 2.

[0048] Example 4 The edge of the through hole of the limiting sleeve 3 is chamfered, and the chamfered surface faces the repair nozzle 2 .

[0049] like Figure 1 and Figure 3 As shown, the diameter of the nozzle opening of the nozzle 1 gradually increases toward the outside.

[0050] Specifically, the repair material enters the nozzle 1 through the feed pipe, then enters the limiting sleeve 3, and finally enters the inner cavity of the repair nozzle 2 and is ejected along the injection hole 21. The material will never come into contact with the outer peripheral wall of the repair nozzle 2 at the front end of the limiting sleeve 3 and the outer wall of the nozzle 1, which can prevent the material from contacting the outer shell of the repair nozzle 2 and the retaining ring mentioned in Example 2. Similarly, it also avoids contact with the adjustment block 41, affecting use.

[0051] The edge of the through hole of the limiting sleeve 3 is chamfered, which can scrape off part of the material on the side wall when the repair nozzle 2 returns after rotation. The injection port of the nozzle 1 is conical, which can enable the repair nozzle 2 to smoothly spray out materials without clogging after adjusting a certain angle; in addition, the repair nozzle 2 in the present invention is a spherical structure, and the inner cavity of the repair nozzle 2 is directly connected to the inner cavity of the limiting sleeve 3. The material can directly enter the inner cavity of the repair nozzle 2. The smooth curved surface does not have dead corners. The material containing particles is not easy to get clogged after entering the repair nozzle 2 and can be discharged smoothly.

[0052] Preferably, the material continues to be sprayed after the angle is adjusted, and the position of the injection hole 21 initially located at the center of the nozzle 1 changes, but the position of the through hole of the limiting sleeve 3 remains unchanged. Therefore, the sprayed material impacts the position of the previous injection hole 21, and at this time the position of the injection hole 21 changes, and the material impacts the inner wall of the repair nozzle 2. The sprayed material achieves a flushing effect, and can self-clean the residual material adhering to the inner wall of the repair nozzle 2, and bring it out together through the injection hole 21. It should be noted that when repairing the slope, no matter how large the angle is adjusted, the injection hole 21 of the repair nozzle 2 is always facing the slope and downward, so the material is bound to be sprayed out and complete the self-cleaning effect in the spherical repair nozzle 2, thereby preventing the material from adhering to and clogging in the nozzle 1 to a great extent.

[0053] It should also be noted that during subsequent cleaning, flushing can be achieved through the water pipe connected to the nozzle 1, and the effect is equivalent to the above. The water flow can effectively achieve a cleaning effect inside the spherical repair nozzle 2; in addition, after cleaning, the nozzle 1 can also be removed from the spraying equipment, and clean water can be poured into the conical injection port of the nozzle 1, and the adjustment support 4 can be turned to clean the outer wall of the repair nozzle 2.

[0054] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A nozzle structure for a slope ecological restoration device, comprising a spraying device and a nozzle (1) arranged on the spraying device, characterized in that: The nozzle (1) is provided with a repair nozzle (2) and an adjustment component, and the repair nozzle (2) is located at the injection port of the nozzle (1); The repair nozzle (2) is a spherical shell with a spray hole (21) formed on its surface. The inner cavity of the repair nozzle (2) faces the nozzle (1). The adjustment component is used to rotate or move the repair nozzle (2) to change the radial position or axial position of the spray hole (21) relative to the nozzle (1).

2. The nozzle structure of the slope ecological restoration device according to claim 1 is characterized by: The adjustment component comprises a limiting sleeve (3), the limiting sleeve (3) being located in the nozzle (1), and a transition curved surface being provided on a side of the limiting sleeve (3) facing the repair nozzle (2), the transition curved surface being a spherical structure capable of rotating in cooperation with the repair nozzle (2).

3. The nozzle structure of the slope ecological restoration device according to claim 2 is characterized by: The limiting sleeve (3) is slidably connected to the inner wall of the nozzle (1), and a through hole is provided on a side of the repair nozzle (2) facing the limiting sleeve (3), wherein the diameter of the through hole is larger than the diameter of the injection hole (21).

4. The nozzle structure of the slope ecological restoration device according to claim 2 is characterized by: The adjustment assembly further comprises an adjustment support (4), the adjustment support (4) being slidably connected to the outer peripheral wall of the nozzle (1), a plurality of adjustment blocks (41) being provided on the outer peripheral wall of the adjustment support (4), a plurality of through grooves (11) corresponding to the adjustment blocks (41) being provided on the outer periphery of the nozzle (1) near the injection port, a plurality of slide grooves (31) corresponding to the through grooves (11) being provided on the outer peripheral wall of the limiting sleeve (3), one end of the adjustment block (41) being slidably connected to the adjustment support (4), and the other end being slidably connected in the slide groove (31).

5. The nozzle structure of the slope ecological restoration device according to claim 4 is characterized by: A plurality of pressing blocks (22) corresponding to the adjusting block (41) are provided on the outer peripheral wall of the repair nozzle (2); the adjusting block (41) is in a U-shaped structure; and the pressing blocks (22) are located in the opening of the adjusting block (41).

6. The nozzle structure of the slope ecological restoration device according to claim 5 is characterized by: The pressing block (22) is located on a diameter of the repair nozzle (2) passing through the spherical center, the pressing block (22) is parallel to the adjustment support (4), and there is a distance between the limiting sleeve (3) and the pressing block (22).

7. The nozzle structure of the slope ecological restoration device according to claim 5 is characterized by: The length of the sliding groove (31) is smaller than the length of the limiting sleeve (3).

8. The nozzle structure of the slope ecological restoration device according to claim 5 is characterized by: A plurality of return springs are provided on one side of the limiting sleeve (3) corresponding to the pressure block (22), a buckle is provided on the side of the adjustment block (41) facing the outside, and a clamping block that cooperates with the buckle is provided on the side of the adjustment support (4) close to the adjustment block (41).

9. The nozzle structure of the slope ecological restoration device according to claim 8, characterized in that: The edge of the through hole of the limiting sleeve (3) is provided with a chamfer, and the chamfered surface faces the repair nozzle (2).

10. The nozzle structure of the slope ecological restoration device according to claim 2, characterized in that: The diameter of the jet opening of the nozzle (1) gradually increases toward the outside.

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