A nozzle structure of a device for ecological restoration of a slope

Abstract

The present application relates to the technical field of spray seeding equipment, and particularly relates to a nozzle structure of a device for slope ecological restoration, aiming to solve the problem of uneven coverage and missed dead angles in traditional spray seeding construction, in which the angle of the nozzle is fixed and cannot accurately adapt to the changes in the terrain caused by different slopes or obstacles. The device comprises a spray pipe, a restoration nozzle and an adjusting assembly are arranged on the spray pipe, and the restoration nozzle is located at the spray port of the spray pipe. The restoration nozzle is a spherical shell with a spray hole on the surface, the 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 the radial position or axial position of the spray hole relative to the spray pipe. The restoration nozzle is a spherical shell that can rotate or move axially, and a spray hole is arranged on the surface, so that the direction and position of the spray port 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.

Description

Technical Field

[0001] This invention relates to the field of hydroseeding equipment technology, and in particular to a nozzle structure for a device used for slope ecological restoration. Background Technology

[0002] Currently, hydroseeding (spraying) is commonly used in slope ecological restoration. This method utilizes ecological concrete (vegetation 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 at high speed onto the slope surface to achieve rapid vegetation coverage and soil stabilization. To ensure the material's low-carbon and environmentally friendly properties, and to provide better site conditions for plant growth, cement is replaced with low-carbon gel materials to improve substrate adhesion and erosion resistance. Typical hydroseeding equipment consists of a high-pressure pump, delivery pipeline, and nozzles. The nozzles are the key components controlling the spray pattern, spray distance, and spray direction.

[0003] Existing spray nozzles are mostly straight pipes or simple conical nozzle structures, lacking precise spray direction adjustment and stepless range control. Their single spray direction makes it difficult to adjust the nozzle orientation according to slope, uneven terrain, or obstacles, resulting in dead zones, uneven coverage, and poor restoration effects. For example, patent CN202410632698.2 discloses a matching spraying device for mine ecological restoration, and patent CN202321890595.3 discloses a spraying device for grassland ecological restoration. Both combine terrain features to increase the spraying range, but due to the fixed nozzle direction and limited fluid path, some spraying devices struggle to achieve long-distance, high-point spraying, especially on steep slopes or in areas requiring obstacle crossing, making comprehensive and effective spraying difficult.

[0004] The materials used for repair are usually high-viscosity matrices containing fibers and aggregates. When passing through straight nozzles, they tend to get stuck, entangled, and deposited at sharp angles, leading to frequent nozzle blockages. Maintenance is also difficult: existing nozzles are inconvenient to disassemble and clean, and on-site blockages require long downtime, reducing construction efficiency.

[0005] Therefore, how to achieve multi-degree-of-freedom adjustment of nozzle spray direction, stepless or stepped adjustment of range, and improve anti-clogging performance under conditions of high abrasion and high fiber content 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 this invention is the spraying equipment for slope restoration. Due to the problems of restoration materials and slope topography, it is not easy to adjust the angle of the nozzle to spray and repair the slope. The purpose is to provide a nozzle structure for a device for ecological restoration of slopes to solve the above problems.

[0007] This invention is achieved through the following technical solution:

[0008] A nozzle structure for a slope ecological restoration device includes a spraying device and a nozzle pipe disposed on the spraying device. The nozzle pipe is provided with a restoration nozzle and an adjustment assembly, and the restoration nozzle is located at the spray port of the nozzle pipe.

[0009] The repair nozzle is a spherical shell with spray holes on its surface. The inner cavity of the repair nozzle faces the nozzle pipe. The adjustment component is used to rotate or move the repair nozzle to change the radial or axial position of the spray holes relative to the nozzle pipe.

[0010] In the above technical solution, the repair nozzle is a rotatable or axially movable spherical shell with spray holes on its surface, which allows the nozzle orientation and position to be flexibly adjusted, enabling fine-tuning of the spray angle and range in any direction and at any depth. This can accurately cover complex terrain and improve the uniformity and efficiency of ecological restoration.

[0011] In some alternative technical solutions, the adjustment component includes a limiting sleeve located inside the nozzle. The limiting sleeve has a transition surface on the side facing the repair nozzle, and the transition surface is a spherical structure that can rotate and cooperate with the repair nozzle.

[0012] In the above technical solution, the limiting sleeve provides reliable rotation guidance for the spherical shell, and at the same time, the limiting sleeve ensures that the spherical shell does not undergo radial or axial misalignment during rotation, thereby enhancing the stability and controllability of the overall structure.

[0013] In some alternative technical solutions, the limiting sleeve is slidably connected to the inner wall of the nozzle, and the repair nozzle has a through hole on the side facing the limiting sleeve, the diameter of the through hole being larger than the diameter of the spray hole.

[0014] In the above technical solution, the limiting sleeve is rotatably connected to the inner wall of the nozzle, and the diameter of the through hole of the repair nozzle is larger than the diameter of the spray hole, which allows the repair material to pass through smoothly. The through hole ensures that there is no obstruction between the nozzle and the repair nozzle, reducing the risk of blockage.

[0015] In some optional technical solutions, the adjustment assembly further includes an adjustment support, which is slidably connected to the outer peripheral wall of the nozzle. A plurality of adjustment blocks are provided on the outer peripheral wall of the adjustment support. A plurality of through grooves corresponding to the adjustment blocks are opened on the outer periphery of the nozzle near the injection port. A plurality of sliding grooves corresponding to the through grooves are opened on the outer peripheral wall of the limiting sleeve. One end of the adjustment block is slidably connected to the adjustment support, and the other end is slidably connected to the sliding groove.

[0016] In the above technical solution, a sliding adjustment support and its adjustment block are set on the outer wall of the nozzle. Through the cooperation of the adjustment block and the sliding groove of the limiting sleeve, 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 spraying accuracy and construction quality.

[0017] In some optional technical solutions, the outer peripheral wall of the repair nozzle is provided with a number of pressure blocks corresponding to the adjustment block. The adjustment block has a U-shaped structure, and the pressure block is located inside the opening of the adjustment block.

[0018] In the above technical solution, the pressure block and the adjusting block work together to prevent the repair nozzle from deflecting or loosening during high-pressure spraying, so that the nozzle can maintain the set position and operate stably under high pressure.

[0019] In some alternative technical solutions, the pressure block is located on the diameter of the repair nozzle passing through the center of the ball, the pressure block is parallel to the adjusting support, and there is a gap between the limiting sleeve and the pressure block.

[0020] In the above technical solution, while ensuring the positioning of the pressure block, a reserved gap is provided to allow the spherical shell to rotate freely, thus balancing sealing performance and rotational flexibility.

[0021] In some alternative technical solutions, the length of the groove is less than the length of the limiting sleeve.

[0022] In the above technical solution, the length of the slide groove is less than the length of the limiting sleeve, which limits the adjustment stroke and avoids excessive movement that could cause the device to leave the limiting area, thereby improving the accuracy and safety of position control.

[0023] In some optional technical solutions, the limiting sleeve is provided with several return springs on one side of the pressure block, the adjusting block is provided with a buckle on the side facing the outside, and the adjusting support is provided with a locking block that cooperates with the buckle on the side near the adjusting block.

[0024] In the above technical solution, the repair nozzle is automatically reset and locked after the external force is removed by a combination of a reset spring and a snap-lock.

[0025] In some alternative technical solutions, the edge of the through hole of the limiting sleeve is chamfered, and the chamfered surface faces the repair nozzle.

[0026] In the above technical solution, the chamfer design reduces the scouring and wear at the junction of the nozzle and the through hole, and helps the repair material to pass through smoothly, further reducing blockage and local wear, and can scrape off the adhering material on the outer peripheral wall of the repair nozzle after the repair nozzle is reset.

[0027] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0028] 1. The repair nozzle in this invention is a spherical shell. By cooperating with the transition curved surface on the limiting sleeve, it can achieve rotation at any angle and fine adjustment of axial position using the adjusting support, thereby realizing the adjustment of spray angle and range. It can quickly achieve ecological restoration of slopes with different slopes, uneven terrain and obstacle areas. The spherical spray chamber makes the material sprayed in a bundle, which can make the repair material cover more evenly and without omission.

[0029] 2. In this invention, the repair material 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 or bends, so the repair material is not easy to remain or adhere to the repair nozzle, which can effectively prevent clogging. After the repair nozzle rotates, the position of the spray hole changes, and the sprayed repair material can be flushed on the repair nozzle, scraping off the material remaining on the repair nozzle and carrying it out together, further improving the anti-clogging ability. Attached Figure Description

[0030] The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0031] Figure 1 This is a schematic diagram of the structure of the present invention;

[0032] Figure 2 This is a cross-sectional view of the present invention;

[0033] Figure 3 This is an exploded view of the present invention;

[0034] Figure 4 This is a schematic diagram of the structure of the nozzle after adjustment angle in Embodiment 2 of the present invention;

[0035] Figure 5 This is a schematic diagram of the structure after the nozzle is axially moved in Embodiment 3 of the present invention.

[0036] The reference numerals in the attached figures represent:

[0037] 1. Nozzle; 11. Through groove; 2. Repair nozzle; 21. Spray hole; 22. Pressure block; 3. Limiting sleeve; 31. Slide groove; 4. Adjusting support; 41. Adjusting block. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments and accompanying drawings. The illustrative embodiments and descriptions of this invention are for illustrative purposes only and are not intended to limit the invention. It should be noted that this invention is already in the actual research and development stage.

[0039] Example 1

[0040] 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 installed on the spraying device. The nozzle 1 is provided with a repair nozzle 2 and an adjustment component. The repair nozzle 2 is located at the spray port of the nozzle 1.

[0041] 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 or axial position of the spray hole 21 relative to the nozzle 1.

[0042] like Figure 2 and Figure 3 As shown, the adjustment component includes a limiting sleeve 3, which is located inside the nozzle 1. The limiting sleeve 3 has a transition surface on the side facing the repair nozzle 2. The transition surface is a spherical structure that can rotate and cooperate with the repair nozzle 2.

[0043] like Figure 2 and Figure 3 As shown, the limiting sleeve 3 is slidably connected to the inner wall of the nozzle 1, and the repair nozzle 2 has a through hole on the side facing the limiting sleeve 3. The diameter of the through hole is larger than the diameter of the spray hole 21.

[0044] Specifically, a material conveying pipe is connected to the side of the nozzle 1 away from the spray nozzle, which is used to convey the repair material and spray it out from the nozzle 1. A pressure pump is also installed on the nozzle 1 to provide pressure for the sprayed repair material. In this embodiment, the repair material is sent into the nozzle 1 by the material conveying pipe, and then the pressure pump provides pressure to spray the material. After passing through the limiting sleeve 3 and the repair nozzle 2, the material is sprayed out from the spray hole 21, so that the material is evenly coated on the slope.

[0045] In this embodiment, when the material is sprayed, the repair nozzle 2 is a spherical shell that can gather the material into a bundle and spray it out along the spray hole 21. The bundled flow line is stable, the landing point is more controllable, the amount of material deposited at the same position is more uniform, and the impact force is concentrated and the flow rate is higher. It can be better sprayed on the depression when repairing the depression area in the future, thus improving the adhesion.

[0046] Example 2

[0047] 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. Several adjustment blocks 41 are provided on the outer peripheral wall of the adjustment support 4. Several through grooves 11 corresponding to the adjustment blocks 41 are opened on the outer periphery of the nozzle 1 near the injection port. Several sliding 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 to the sliding groove 31.

[0048] like Figure 3 As shown, the outer peripheral wall of the repair nozzle 2 is provided with several pressure blocks 22 corresponding to the adjustment block 41. The adjustment block 41 has a U-shaped structure, and the pressure blocks 22 are located inside the opening of the adjustment block 41.

[0049] like Figure 2 and Figure 4 As shown, the pressure block 22 is located on the diameter of the repair nozzle 2 passing through the center of the ball. The pressure block 22 is parallel to the adjusting support 4, and there is a gap between the limiting sleeve 3 and the pressure block 22.

[0050] The length of the slide groove 31 is less than the length of the limiting sleeve 3.

[0051] The limiting sleeve 3 is provided with several return springs on one side of the pressure block 22, the adjusting block 41 is provided with a buckle on the side facing the outside, and the adjusting support 4 is provided with a locking block that cooperates with the buckle on the side near the adjusting block 41.

[0052] It should be noted that when spraying the slope, the nozzle of the spray pipe 1 should be kept perpendicular to the slope surface, with an adjustable deviation of 15°. Since the slope terrain is naturally formed, there will be some undulating terrain, such as different inclination angles on the local slope surface, as well as depressions, protrusions, and local obstacles. In most cases, without adjusting the nozzle angle of the spray pipe 1, the sprayed material is difficult to coat evenly on these undulating terrains, resulting in the material being sprayed outside the target area or missing the depression area, leading to uneven repair.

[0053] In this embodiment, when adjusting the position of the spray hole 21 of the repair nozzle 2, i.e., when adjusting the spray angle, the repair nozzle 2 can be rotated by moving the adjusting block 41 on the adjusting support 4. Specifically, the adjusting support 4 in this embodiment is annular, and there are four adjusting blocks 41 arranged in a circular array. There are also four pressure blocks 22 and through slots 11. The adjusting support 4 is provided with a limiting groove for sliding the adjusting block 41. Grooves are also provided on both sides of the limiting groove. Wings that are slidably connected to the grooves are provided on both sides of the adjusting block 41. The adjusting block 41 is slidably connected in the limiting groove, and the wings are slidably connected in the groove. The groove is also used to limit the wings and prevent the adjusting block 41 from losing its limit and falling. After the sliding adjusting block 41 moves to a certain position, it can be fastened to the adjacent locking block of the adjusting support 4 by a buckle to limit the movement of the adjusting block 41 and achieve positioning and fixation.

[0054] like Figure 4As shown, pressing the adjusting block 41 causes the adjusting block 41 to move downwards, which in turn moves the pressure block 22 on the repair nozzle 2. Although the adjusting block 41 moves linearly, the bottom of the spherical repair nozzle 2 rotates in conjunction with the transition surface of the limiting sleeve 3. Therefore, when the pressure block 22 moves along with it, 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 spray hole 21 will also rotate, while the nozzle 1 remains unchanged, thus achieving the effect of changing the spray angle.

[0055] After the repair nozzle 2 changes angle, it can be engaged with the locking block via a snap-fit ​​mechanism to prevent the adjusting block 41 from springing back or continuing to move. Simultaneously, 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 height requirement for the upward movement of the pressure block 22, to avoid the pressure block 22 being limited in its upward movement, which would prevent the repair nozzle 2 from rotating to the required angle. Furthermore, there is a certain distance between the top of the adjusting block 41 and the limiting groove on the adjusting support 4. When the pressure block 22 moves downward, the pressure block 22 on the opposite side moves upward, ultimately becoming... Figure 4 In this structural form, when the repair nozzle 2 needs to be reset, the limit of the buckle on the pressing block 22 is released, the reset spring is no longer compressed, and the pressing block 22 is reset. In particular, after long-term use, when the elasticity of the reset spring is not good, the position of the repair nozzle 2 can also be adjusted by moving the adjustment block 41 on the opposite side downward.

[0056] It should also be noted that an annular groove is provided on the inner peripheral wall of the nozzle 1 near the repair nozzle 2. A retaining ring is detachably connected in 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 peripheral wall of the repair nozzle 2. The retaining ring allows the repair nozzle 2 to rotate only along the transition curved surface of the limiting sleeve 3. During construction, the repair nozzle 2 is inverted and faces the construction slope. The retaining ring will prevent the repair nozzle 2 from sliding down and lock it on the limiting sleeve 3.

[0057] Specifically, the bottom of the adjusting block 41 near the limiting sleeve 3 is an elastic structure. The bottoms of several adjusting blocks 41 converge toward the central axis of the limiting sleeve 3. Several equidistantly distributed adjusting blocks 41 converge toward the limiting sleeve 3 together, forming a clamping force. The adjusting blocks 41 can be fixed to the adjusting support 4 by snap-fit. Therefore, under the clamping of the adjusting blocks 41, the limiting sleeve 3 can be stably limited within the nozzle 1 and moves with the movement of the adjusting blocks 41. The repair nozzle 2 is also stably engaged with the limiting sleeve 3 under the joint limiting of the retaining ring and the adjusting blocks 41, realizing rotation. To better achieve this effect, the total length of the limiting sleeve 3 should be within the clamping range of the adjusting blocks 41 to avoid the tail end being too long and affecting the clamping stability.

[0058] Example 3

[0059] Based on the content described in Example 1, this invention is used for slope repair. However, in special slope terrain, such as steep slopes, the presence of retaining walls or railings, or excessively high slopes, the normal range cannot effectively spray onto the slope surface.

[0060] like Figure 5 As shown, in this embodiment, the axial position of the repair nozzle 2 in the nozzle 1 can be adjusted by moving the adjusting support 4. One end of the U-shaped adjusting block 41 is located on the adjusting support 4, and the other end is located in the groove 31 of the limiting sleeve 3. The adjusting support 4 is controlled to move towards the spray port of the nozzle 1. The bottom of the adjusting block 41 will abut against the top of the groove 31 of the limiting sleeve 3. Several adjusting blocks 41 together drive the limiting sleeve 3 to slide in the nozzle 1 through the groove 31, thereby changing the position of the repair nozzle 2. The closer the repair nozzle 2 is to the spray port of the nozzle 1, the faster the sprayed material stream will leave the pipe wall of the nozzle 1, and it will not be easily disturbed by the inner wall of the nozzle 1. The stream will be more concentrated and the flight will be more stable, thus the range will be higher.

[0061] Based on the retaining ring in Embodiment 2, in this embodiment, the retaining ring can be inserted after adjusting the position of the repair nozzle 2 to limit the repair nozzle 2.

[0062] Example 4

[0063] The edge of the through hole of the limiting sleeve 3 is chamfered, and the chamfered surface faces the repair nozzle 2.

[0064] like Figure 1 and Figure 3 As shown, the diameter of the nozzle 1 gradually increases outwards.

[0065] 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 sprayed out along the spray 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 or the outer wall of the nozzle 1. This avoids 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 adjusting block 41, which would affect its use.

[0066] The limiting sleeve 3 has a chamfered edge on the through hole, which can scrape off some of the material on the side wall when the repair nozzle 2 returns after rotating. The spray nozzle 1 has a conical spray nozzle, which allows the repair nozzle 2 to spray out material smoothly without clogging after adjusting a certain angle. In addition, the repair nozzle 2 in this invention has 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 has no dead corners, and the material containing particles is not easy to clog after entering the repair nozzle 2 and can be discharged smoothly.

[0067] Preferably, after adjusting the angle, the spraying of material continues. The position of the spray hole 21, which was 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 spray hole 21, which was previously located. At this time, the position of the spray hole 21 changes, and the material impacts the inner peripheral wall of the repair nozzle 2. The sprayed material achieves a flushing effect, which can self-clean the residual material adhering to the inner wall of the repair nozzle 2 and carry it out through the spray hole 21. It should be noted that when repairing the slope, regardless of the size of the angle adjustment, the spray hole 21 of the repair nozzle 2 always faces the slope and downwards. Therefore, the material will inevitably be sprayed out and complete the self-cleaning effect in the spherical repair nozzle 2, which greatly prevents the material from adhering to and clogging the nozzle 1.

[0068] It should also be noted that during subsequent cleaning, rinsing can be achieved through the water supply pipe connected to the nozzle 1, with the same effect as described above. The water flow can effectively achieve the cleaning effect inside the spherical repair nozzle 2. In addition, after cleaning, the nozzle 1 can be removed from the spraying equipment, cleaning water can be poured in along the conical spray nozzle of the nozzle 1, and the adjusting support 4 can be moved to clean the outer wall of the repair nozzle 2.

[0069] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment 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 within 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) disposed on the spraying device, characterized in that, The nozzle (1) is provided with a repair nozzle (2) and an adjustment assembly, wherein the repair nozzle (2) is located at the spray 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 or axial position of the spray hole (21) relative to the nozzle (1). The adjustment component includes a limiting sleeve (3), which is located inside the nozzle (1). The limiting sleeve (3) has 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). The adjustment assembly also includes an adjustment support (4), which is slidably connected to the outer peripheral wall of the nozzle (1). A plurality of adjustment blocks (41) are provided on the outer peripheral wall of the adjustment support (4). A plurality of through grooves (11) corresponding to the adjustment blocks (41) are opened on the outer periphery of the nozzle (1) near the injection port. A plurality of sliding 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 to the sliding groove (31). The outer peripheral wall of the repair nozzle (2) is provided with a number of pressure blocks (22) corresponding to the adjustment block (41). The adjustment block (41) has a U-shaped structure, and the pressure block (22) is located in the opening of the adjustment block (41). The limiting sleeve (3) is slidably connected to the inner wall of the nozzle (1), and the repair nozzle (2) has a through hole on the side facing the limiting sleeve (3), the diameter of the through hole being larger than the diameter of the spray hole (21). The limiting sleeve (3) is provided with several reset springs on one side of the pressure block (22), the adjusting block (41) is provided with a buckle on the side facing the outside, and the adjusting support (4) is provided with a locking block that cooperates with the buckle on the side close to the adjusting block (41).

2. The nozzle structure of the device for ecological restoration of slopes according to claim 1, characterized in that: The pressure block (22) is located on the diameter of the repair nozzle (2) passing through the center of the ball. The pressure block (22) is parallel to the adjusting support (4). There is a gap between the limiting sleeve (3) and the pressure block (22).

3. The nozzle structure of the device for ecological restoration of slopes according to claim 1, characterized in that: The length of the groove (31) is less than the length of the limiting sleeve (3).

4. The nozzle structure of the device for ecological restoration of slopes according to claim 1, characterized in that: The through hole edge of the limiting sleeve (3) is chamfered, and the chamfered surface faces the repair nozzle (2).

5. The nozzle structure of the device for ecological restoration of slopes according to claim 1, characterized in that: The diameter of the nozzle (1) gradually increases outwards.

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