CN113973547A

CN113973547A - Wood fiber spray gun for wall greening and spraying-seeding machine thereof

Info

Publication number: CN113973547A
Application number: CN202111271039.3A
Authority: CN
Inventors: 柴轻; 徐靖; 沈龙; 王国栋; 纪建兵; 胡麒麟; 罗智; 梅鸿翔; 朱毅
Original assignee: Ningguo Dongnan Wood Fiber Technology Co ltd
Current assignee: Ningguo Dongnan Wood Fiber Technology Co ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-01-28

Abstract

The invention relates to the technical field of spray-seeding equipment, in particular to a wood fiber spray gun for wall greening and a spray-seeding machine thereof. A wood fiber spray gun for wall greening, comprising: the device comprises a spray head, a fixed angle adjusting device, a moving body, a bent pipe, a sliding frame, a spray pipe, a vertical transmission device, a flow control plate, a hose and a lead screw; the fixed angle adjusting device comprises: the side surface of the circumference of the movable ratchet wheel disc is uniformly provided with a plurality of trapezoidal bulges. The invention replaces the original rotation mode with the movement mode of moving the spray gun for spray seeding, and the spray head can be adjusted at a fixed angle so that the spray angle of the spray head is always vertical to the spray seeding surface during spraying, thereby reducing the problem of sputtering rebound, ensuring that the spray seeding of the spray seeding layer is more uniform, enhancing the interlocking property between the spray seeding layers and improving the adhesion capability of the spray seeding layer on the wall.

Description

Wood fiber spray gun for wall greening and spraying-seeding machine thereof

Technical Field

The invention relates to the technical field of spray-seeding equipment, in particular to a wood fiber spray gun for wall greening and a spray-seeding machine thereof.

Background

With the arrival of the low-carbon era, a high and new technology is being rapidly raised in the world, wall greening is called vertical greening and three-dimensional greening, and because urban land is limited and the urban land greening cost is relatively high, so that urban space is fully utilized to perform greening at building outer walls, enclosing walls, bridges, balconies, windowsills and the like, the greening area of the building environment can be effectively increased, noise is absorbed, dust is absorbed, and air is purified, so that the urban ecological environment is improved, and the urban heat island effect is relieved;

with the progress of greening technology and the requirements of ecological cities, wall greening forms are more and more, and modes and methods are more and more advanced and diversified, the SPF soilless spray seeding and re-greening technology is a novel spray seeding process for carrying out soilless spray seeding by taking a thin-layer high-performance ecological spray seeding matrix, namely SPF matrix (spray seeding wood fiber matrix), as a spray seeding matrix, spray seeding wood fibers are formed by washing, peeling, high-temperature steaming and high-pressure grinding original pine, and the spray seeding wood fibers are a novel organic spray seeding matrix, and can be effectively hung on a carrier laid on a wall due to the staggered and meshed properties of the fibers, so that the spray seeding wood fibers are not easy to fall off and can be kept green for a long time;

when the SPF soilless spray-seeding process is used for construction, wood fiber matrix (containing plant nutrients, fertilizers, probiotic strains and soil conditioners) and seeds, adhesives and water retention agents are placed into a spray-seeding vehicle in sequence, are uniformly stirred and mixed, are directly sprayed on a construction surface in any environment by a high-pressure spray-seeding gun, can be formed at one time after greening, has no trouble of later-stage repair or rework, is suitable for any irregular repair surface, has the plant coverage rate of more than 70-85 percent, has the functions of protection and greening after two months, and keeps green for a long time;

the application range of the existing spray-seeding technology mainly comprises four categories of wall greening, mine restoration, soil improvement and solid waste green covering, the wall spray-seeding greening is a special application environment, the requirement on the spray-seeding quality is high, and the requirement on high adhesion performance is required to ensure that a spray-seeding base material cannot fall off from a wall, but the existing spray-seeding machine has the following problems when the wall spray seeding is carried out:

1. due to the vertical surface property of the wall environment, when the conventional spray-seeding machine performs wall spray-seeding operation, the spray-seeding pressure cannot be changed, the spray angle of the spray gun is not perpendicular to the spray-seeding surface when the spray gun sprays, and the spray-seeding liquid is sprayed onto the surface of the wall, so that the rebound rate of the spray-seeding liquid is high, the higher the pressure of the spray-seeding material touching the slope surface is, the higher the rebound rate is, the more the spray angle is not perpendicular to the spray-seeding surface, the higher the rebound rate is, the construction cost and the environmental friendliness are directly influenced by the height of the rebound rate, and if the sprayed wood fiber spray-seeding liquid rebounds on the spray-seeding surface, the problem that the thickness of the spray layer of the spray-seeding material does not become the specified size exists. In addition, at a place where the rebounded blowing material adheres (a place where the blowing material rebounds), the blowing surface becomes uneven due to the rebounded blowing material, and the quality thereof is degraded;

2. the angle adjustment and the spray seeding track of the spray gun of the existing spray seeding machine are basically adjusted by operators according to own experience or habit, the operators need to change the spray angle of the spray gun constantly to ensure that the sprayed liquid can uniformly cover the spraying surface, and the operators realize uniform spraying by controlling the movement of the spray gun, so that the time consumption, the labor consumption and the efficiency are low, the uniformity of the thickness of each layer during layered spraying cannot be ensured, the state that each layer is thick and thin is easy to generate, the non-uniformity of the spray seeding layer can influence the interlocking property among the spray seeding layers and the adhesion capability of the spray seeding layer to a vertical spray seeding surface;

thus, the prior art/design has drawbacks.

Disclosure of Invention

The present invention has been made in view of the above problems, and an object of the present invention is to provide a spray gun capable of moving a spray gun to spray, instead of an original rotation method, so as to solve the problems of a large rebound resilience and poor adhesion caused by the fact that a spray angle is not perpendicular to a spray surface when the spray gun sprays on a wall by using a movement method of moving the spray gun to spray, in which a spray head can be adjusted at a fixed angle such that the spray angle is always perpendicular to the spray surface when the spray gun sprays on the wall, and to provide a spray gun having a spray gun moving device, in which:

the invention has the beneficial effects that:

1. according to the invention, the fixed angle adjusting device and the spray gun moving spray-seeding movement mode are arranged, so that the spray gun can ensure that the spray angle is vertical to the wall body to the maximum extent in the wall body spraying process, and the rebound rate of spray-seeding liquid is reduced;

2. according to the invention, the flow control plates with different notch widths are arranged, so that the spray pressure is automatically reduced when the spray head performs low-angle spraying, and the serious problems of sputtering and rebounding caused by high pressure of spray seeding liquid during low-angle spraying of a wall body are reduced;

2. according to the invention, the vertical transmission device and the transmission reversing device are arranged, so that the whole spray seeding process is automated, the efficiency is greatly improved, uniform spraying can be realized, and the spraying quality is improved.

Drawings

Fig. 1 is a schematic view of the overall structure of a wood fiber spray gun for wall greening according to the present invention.

Fig. 2 is an exploded view of a nozzle and a fixed angle adjusting device of a wood fiber spray gun for wall greening according to the present invention.

Fig. 3 is a half-sectional view of a structure of a nozzle and a fixed angle adjusting device in the wood fiber spray gun for wall greening according to the present invention.

Fig. 4 is a schematic structural view of a carriage in the wood fiber spray gun for wall greening according to the present invention.

Fig. 5 is a front view of a wood fiber spray gun for wall greening according to the present invention.

Fig. 6 is a sectional view taken along line a-a of fig. 5.

Fig. 7 is a sectional view taken along line B-B of fig. 5.

Fig. 8 is a cross-sectional view taken along line C-C of fig. 5.

Fig. 9 is a schematic view of the overall structure of the wood fiber spraying seeder for wall greening according to the present invention.

Fig. 10 is a schematic view of the working state of the wood fiber spraying seeder for wall greening according to the present invention.

Fig. 11 is a schematic diagram of a preparation state of the wood fiber spraying seeder for wall greening according to the present invention.

Description of the drawings:

100. a spray head; 200. a fixed angle adjusting device; 210. a fixed ratchet wheel disc; 220. a movable ratchet wheel disc; 221. a limiting bulge; 222. a trapezoidal protrusion; 223. a rectangular internal spline; 230. a spring; 240. a ratchet shell; 241. a limiting notch; 242. positioning the shaft; 250. a moving body; 251. an I-shaped slide rail; 252. a threaded hole; 253. a connecting plate; 254. a connecting pipe; 300. bending the pipe; 400. a carriage; 401. an I-shaped chute; 402. a fixed notch; 403. a limiting chute; 410. a supporting plate; 500. a nozzle; 510. a connecting disc; 511. a limiting slide rail; 600. a vertical transmission device; 610. a servo motor; 620. a pinion gear; 630. a bull gear; 700. a flow control plate; 710. a flow control slot; 800. a hose; 900. a lead screw; 10. a feed hopper; 20. a stirring device; 30. a power plant; 40. a pumping device; 50. a delivery line; 70. a telescopic material pipe; 80. a mobile platform; 80a, a movable chute; 81. a slide base; 81a, positioning slide rails; 81b, a traction block; 82. a hydraulic telescopic cylinder; 82a, a toggle plate; 90. a drive reversing device; 91. a drive transmission shaft; 91a, rectangular splines; 92. a drive pinion; 93. pushing the pipe; 93a, a pushing ring; 94. a driving gearwheel; 95. a reversing gear; 96. a driven transmission shaft; 97. a driven pinion gear; 98. a driven bull gear; 99. a variable speed transmission case.

Detailed Description

Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are easily implemented by those having ordinary skill in the art to which the present invention pertains, however, the present invention may be implemented in various forms, and thus, the present invention is not limited to the embodiments described below, and in addition, components not connected to the present invention will be omitted from the drawings for more clear description of the present invention.

Example 1:

as shown in fig. 1 to 8, a wood fiber spray gun for wall greening includes: the device comprises a spray head 100, a fixed angle adjusting device 200, a bent pipe 300, a sliding frame 400, a spray pipe 500, a vertical transmission device 600, a flow control plate 700, a hose 800 and a lead screw 900;

the fixed angle adjusting device 200 includes: the ratchet wheel comprises a fixed ratchet wheel plate 210, a movable ratchet wheel plate 220, a spring 230, a ratchet wheel shell 240 and a moving body 250, wherein the movable ratchet wheel plate 220 is disc-shaped, limiting bulges 221 which are symmetrical to each other are arranged on the circumference of the movable ratchet wheel plate, a plurality of trapezoidal bulges 222 which are uniformly distributed along the circumference are arranged on one side end surface of the movable ratchet wheel plate, a rectangular internal spline 223 is arranged on the inner circumferential surface of the movable ratchet wheel plate, the fixed ratchet wheel plate 210 is fixedly arranged at one end of the spray head 100, the same trapezoidal bulges 222 are arranged on the surface of the fixed ratchet wheel plate 210 opposite to the trapezoidal bulges 222 of the movable ratchet wheel plate 220, the ratchet wheel shell 240 is integrally a hollow cylindrical shell, limiting notches 241 which are symmetrical to each other are arranged on the circumferential surface of the ratchet wheel shell, a positioning shaft 242 with a rectangular external spline is arranged in the fixed ratchet wheel plate, the movable ratchet wheel plate 220 is movably arranged on the positioning shaft 242 by matching the limiting bulges 221 on the circumference with the limiting notches 241 on the circumference of the ratchet wheel shell 240, the rectangular internal spline 223 in the movable ratchet wheel plate 220 is meshed with the rectangular external spline on the circumferential surface of the positioning shaft 242, the spring 230 is sleeved on the positioning shaft 242 and positioned between the right end face of the movable ratchet disc 220 and the ratchet shell 240, one end of the spring is pressed at the right end face of the movable ratchet disc 220, the other end of the spring is pressed at the right end face of the ratchet shell 240, the movable ratchet disc 220 can be tightly pressed on the fixed ratchet disc 210 under the elastic force operation of the spring 230, the trapezoidal protrusion 222 on the end face of the movable ratchet disc 220 is mutually meshed with the trapezoidal protrusion 222 on the fixed ratchet disc 210, the relative position between the movable ratchet disc 220 and the fixed ratchet disc 210 is limited, only when the spray head 100 is rotated by external force, the movable ratchet disc 220 is under the thrust action of the trapezoidal protrusion 222 on the fixed ratchet disc 210, the movable ratchet disc 220 can overcome the elastic force of the spring 230 to start to be separated from the fixed ratchet disc 210, and the relative position between the movable ratchet disc 220 and the fixed ratchet disc 210 is changed;

the moving body 250 consists of an I-shaped slide rail 251, a threaded hole 252, a connecting plate 253 and a connecting pipe 254, the connecting pipe 254 penetrates through the I-shaped slide rail 251 and is fixedly installed in the middle end surface of the I-shaped slide rail 251, and the left end of the connecting pipe 254 is fixedly connected with the right end of the ratchet housing 240; a connecting plate 253 is fixed on the lower end face of the I-shaped slide rail 251, a threaded hole 252 is formed in one end of the I-shaped slide rail 251, the threaded hole 252 can penetrate through the I-shaped slide rail 251, and a lead screw 900 is connected to the threaded hole 252 in a threaded manner;

the sliding frame 400 is a cube structure, an I-shaped sliding groove 401 corresponding to an I-shaped sliding rail 251 in the moving body 250 is arranged in the sliding frame 400, a limiting sliding groove 403 is arranged at the other end of the sliding frame 400 corresponding to the I-shaped sliding groove 401, a fixing notch 402 is arranged between the I-shaped sliding groove 401 and the limiting sliding groove 403, the whole spray gun is formed by mutually and sequentially connecting a plurality of sliding frames 400, a supporting plate 410 which is symmetrically arranged is arranged on one sliding frame 400 positioned below, and the moving body 250 is movably arranged in the sliding frame 400 by matching the I-shaped sliding rail 251 on the moving body with the I-shaped sliding groove 401 on the sliding frame 400;

the spray pipe 500 is a telescopic pipe formed by mutually sleeving a plurality of small spray pipes with different diameters, a connecting disc 510 is fixedly installed at the joint between each small spray pipe, a limiting slide rail 511 is arranged on the connecting disc 510, the connecting disc 510 is installed in a limiting slide groove 403 in each sliding frame 400 through the limiting slide rail 511, an elbow pipe 300 is fixedly connected to the small spray pipe at the uppermost end, the other end of the elbow pipe 300 is connected with a hose 800, the other end of the hose 800 is fixedly connected with a connecting pipe 254, wherein the connecting disc 510 at the uppermost end can be fixedly connected with a connecting plate 253 on the moving body 250, and the connecting disc 510 can be driven to move up and down through the connecting plate 253 when the moving body 250 moves up and down;

the flow control plate 700 is fixedly installed in the fixed slot 402 on the carriage 400, the flow control slot 710 is opened in the middle of the flow control plate 700, the flexible pipe 800 is located in the flow control slot 710 and the volume of the flexible pipe is changed by the extrusion of the flow control slot 710, the width of the flow control slot 710 in each carriage 400 is different, the width of the flow control slot 710 is wider as going downwards, that is, the passing sectional area of the interior of the flexible pipe 800 is larger as going downwards;

the vertical transmission device 600 is mounted on the uppermost carriage 400 and comprises a servo motor 610, a pinion 620 and a bull gear 630, wherein the pinion 620 is fixedly mounted at the output shaft end of the servo motor 610, the bull gear 630 is fixedly mounted at the upper end of the screw 900, the bull gear 630 can be in meshing transmission with the pinion 620, and when the servo motor 610 rotates, the screw 900 is driven to rotate through the meshing transmission of the pinion 620 and the bull gear 630, so that the moving body 250 drives the whole spray head to move up and down;

example 2:

as shown in fig. 9, 10 and 11, a wood fiber spraying and seeding machine for wall greening includes the wood fiber spraying gun 60 for wall greening described in embodiment 1, and further includes: the device comprises a feed hopper 10, a stirring device 20, a power device 30, a pumping device 40, a conveying pipeline 50, a telescopic material pipe 70, a moving platform 80 and a transmission reversing device 90;

the pre-scattering device 10 scatters the filled block-shaped SPF wood fiber substrate into flocculent fibers, and then discharges the flocculent fibers into the stirring device 20;

the stirring device 20 uniformly stirs the materials, seeds, adhesive, water-retaining agent and the like entering from the scattering device 10 to form a wood fiber mixed base material;

the power device 30 provides power for the pumping device 40;

the pumping device 40 is used for conveying the wood fiber mixed base material under the power of the power device 30;

the moving platform 80 is positioned in front of the whole spray seeder, a moving chute 80a along the X-axis direction is arranged on the end surface of the moving platform 80, a sliding seat 81 is movably arranged in the moving chute 80a, a positioning slide rail 81a is arranged in the middle of the upper end surface of the sliding seat 81, the spray gun 60 can be movably arranged on the positioning slide rail 81a through an I-shaped chute 401 in the sliding seat 400 and matching with the positioning slide rail 81a, a drawing block 81b with internal threads is arranged on the end surface of the sliding seat 81 at the side end of the positioning slide rail 81a, hydraulic telescopic cylinders 82 are symmetrically arranged at the two ends of the positioning slide rail 81a, one end of each hydraulic telescopic cylinder 82 is fixed on the moving platform 80, the other end of each hydraulic telescopic cylinder is lower than the sliding seat 400 with a supporting plate 410, a poking plate 82a is arranged on the circumferential surface of the hydraulic telescopic cylinder 82 at the side close to the drawing block 81b, a telescopic material pipe 70 is connected at the lower end of the sliding seat 81, and the telescopic material pipe 70 is formed by sequentially nesting a plurality of small material pipes with different diameters, one end of the spray pipe is communicated with a spray pipe 500 in a spray gun 60 at the upper end of the sliding seat 81, the other end of the spray pipe is communicated with a conveying pipeline 50 connected with the pumping device 40, and the spraying seeding liquid can enter the spray pipe 500 from the conveying pipeline 50 through a telescopic material pipe 70 and then is conveyed to the spray head 100;

the transmission reversing device 90 includes: the device comprises a driving transmission shaft 91, a driving pinion 92, a pushing pipe 93, a driving gearwheel 94, a reversing gear 95, a driven transmission shaft 96, a driven pinion 97, a driven gearwheel 98 and a speed change transmission box 99, wherein the driving transmission shaft 91 is fixedly arranged at the left end of the speed change transmission box 99 and is in power connection with an output shaft of the speed change transmission box 99, both ends of the driving transmission shaft 91 are respectively provided with a small section of rectangular spline 91a, the outer circumference of the driving transmission shaft 91 is sleeved with the pushing pipe 93, the left end and the right end of the pushing pipe 93 are respectively provided with symmetrical pushing rings 93a, the outer sides of the pushing rings 93a at both ends of the pushing pipe 93 are respectively and fixedly provided with the driving gearwheel 94 and the driving pinion 92, the driven transmission shaft 96 is rotatably arranged at the lower side of the driving transmission shaft 91, and the surface of the driven transmission shaft 96 is provided with external threads which are in threaded connection with a threaded traction block 81b on a carriage 400, a driven large gear 98 and a driven small gear 97 are respectively mounted on both left and right ends of the driving transmission shaft 91, and a reversing gear 95 is mounted between the driving small gear 92 and the driven small gear 97, the reversing gear 95 being an idle gear and always meshing with the driven small gear 97.

The working principle of the invention is as follows:

when the wall body spray-seeding operation is carried out, firstly, the angle of the spray head 100 relative to a spray-seeding surface is adjusted according to the actual condition of the wall body until the spraying direction of the spray head 100 is vertical to the spray-seeding slope, then the hydraulic telescopic cylinder 82 is driven to push the whole spray gun 60 to move upwards along the positioning slide rail 81a until the spray gun 60 reaches a specified position and then stops, then the transmission reversing device is started to select a gear according to the spray-seeding requirement to drive the driving transmission shaft 91 to rotate, the left end of the pushing pipe 93 is meshed with a small section of rectangular spline 91a at the left end of the driving transmission shaft 91 in an initial state, the driving large gear 94 at the left end of the pushing pipe 93 is meshed with the driven large gear 98 on the driven transmission shaft 96, the driving small gear 92 at the right end of the pushing pipe 93 is disconnected with the reversing gear 95, and when the driving transmission shaft 91 rotates, the driven transmission shaft 96 starts to rotate through the meshing of the driving large gear 94 with the driven large gear 98, when the driven transmission shaft 96 rotates, the driven transmission shaft 96 is in threaded connection with the threaded traction block 81b on the carriage 400, so that the driven transmission shaft 96 drives the carriage 400 to move rightwards along the moving chute 80a, when the carriage 400 moves rightwards until the toggle plate 82a on the hydraulic telescopic cylinder 82 at one end of the carriage 400 contacts the pushing ring 93a at the right end of the pushing pipe 93, the toggle plate 82a starts to push the pushing pipe 93 to move rightwards, then the left end of the pushing pipe 93 starts to fall off the rectangular spline 91a at the left end of the driving transmission shaft 91 until the right end of the pushing pipe 93 is meshed with the rectangular spline 91a at the right end of the driving transmission shaft 91, at this time, the driving large gear 94 at the left end of the pushing pipe 93 is completely disconnected from the driven large gear 98 at the left end of the driven transmission shaft 96, the driving small gear 92 at the right end of the pushing pipe 93 is completely meshed with the reversing gear 95, and the carriage 400 starts to automatically change the moving direction and starts to move reversely due to the reversing effect of the reversing gear 95, when the hose 800 moves to the leftmost end, the same reversing principle moves rightwards, when the spraying of the area reaches a specified number of rounds, the servo motor 610 in the vertical transmission device 600 starts to rotate, the screw 900 is driven to rotate through the meshing transmission of the pinion 620 and the bull gear 630, the moving body 250 drives the whole spray head to move downwards for a certain distance, and the hose stops when the spray head reaches a specified position, the hose 800 is extruded by the flow control notch 710 to be reduced in the moving process, the internal accessible sectional area of the hose 800 is increased, and therefore the flow speed of the spraying liquid sprayed by the spray head 100 is reduced in pressure, and the spraying is continued to the low slope.

Claims

1. A wood fiber spray gun for wall greening, comprising: the device comprises a spray head (100), a fixed angle adjusting device (200), a moving body (250), a bent pipe (300), a sliding frame (400), a spray pipe (500), a vertical transmission device (600), a flow control plate (700), a hose (800) and a lead screw (900);

the method is characterized in that: the fixed angle adjustment device (200) includes: the side surface of the circumference of the movable ratchet wheel disc (220) is uniformly provided with a plurality of trapezoidal bulges (222), the fixed ratchet wheel disc (210) which is fixed at one end of the spray head (100) and corresponds to the movable ratchet wheel disc (220) is also uniformly provided with a plurality of trapezoidal bulges (222), and the side surface of the circumference of the fixed ratchet wheel disc (210) is also uniformly provided with a plurality of trapezoidal bulges (222); the movable ratchet plate (220) is relatively movably arranged in the ratchet shell (240) and positioned by a spline; a spring (230) which is sleeved in the ratchet shell (240) and presses the movable ratchet wheel disc (220) against the fixed ratchet wheel disc (210) to enable the trapezoidal bulges (222) to be mutually occluded;

the moving body (250) is provided with an I-shaped sliding rail (251) with a threaded hole (252) at one end, and a screw rod (900) is arranged in the threaded hole (252); the connecting pipe (254) penetrates through the I-shaped slide rail (251) and is fixed on the middle end face of the I-shaped slide rail (251), and the connecting pipe (254) is fixedly connected with the ratchet shell (240); a connecting plate (253) is fixed on the lower end surface of the I-shaped slide rail (251);

the sliding frames (400) are sequentially connected up and down, a supporting plate (410) is arranged on the sliding frame (400) positioned below, an I-shaped sliding groove (401) corresponding to the I-shaped sliding rail (251) and a limiting sliding groove (403) corresponding to the I-shaped sliding groove (401) are arranged inside the sliding frame (400), and a fixing notch (402) is arranged between the I-shaped sliding groove (401) and the limiting sliding groove (403);

the spray pipe (500) is a telescopic pipe and is arranged in a limiting groove (403) in each sliding frame (400) through a limiting sliding rail (511), and the upper end of the spray pipe (500) is fixedly connected with the connecting pipe (254) through a hose (800);

the flow control plate (700) is fixed in a fixed notch (402) on the sliding frame (400), a flow control notch (710) is formed in the middle of the flow control plate (700), and the hose (800) is positioned in the flow control notch (710);

the vertical transmission (600) is mounted on the uppermost carriage (400) and comprises: the servo motor (610), install pinion (620) at servo motor (610) output shaft end, with the pinion meshing and fix the gear wheel in lead screw (900) upper end.

2. The wood fiber spray gun for wall greening according to claim 1, wherein: the limiting protrusion (221) on the movable ratchet wheel disc (220) is matched with the limiting notch (241) on the circumference of the ratchet wheel shell (240) to slide.

3. The wood fiber spray gun for wall greening according to claim 2, wherein: the width of the flow control slots (710) in each carriage (400) is different, the wider the slots (710) are down, i.e. the larger the cross-sectional area available inside the hose (800) is down.

4. A wood fiber spraying-seeding machine for wall greening, comprising the wood fiber spraying gun for wall greening according to any one of claims 1 to 3, characterized by further comprising: the device comprises a feed hopper (10), a stirring device (20), a power device (30), a pumping device (40), a conveying pipeline (50), a telescopic material pipe (70), a moving platform (80) and a transmission reversing device (90).

5. The wood fiber spray-seeding machine for wall greening according to claim 4, wherein: the pre-scattering device (10) scatters the filled block SPF wood fiber substrate into flocculent fibers, and then discharges the flocculent fibers into the stirring device (20); the stirring device (20) uniformly stirs the materials, seeds, the adhesive, the water-retaining agent and the like entering from the scattering device (10) to form a wood fiber mixed base material; the power device (30) provides power for the pumping device (40); the pumping device (40) conveys the wood fiber mixed base material under the power of the power device (30) in a pressurizing way.

6. The wood fiber spray-seeding machine for wall greening according to claim 4, wherein: the movable platform (80) is positioned in front of the whole spray seeder, a movable sliding chute (80a) along the X-axis direction is arranged on the end face of the movable platform (80), a sliding seat (81) is movably arranged in the movable sliding chute (80a), a positioning sliding rail (81a) is arranged in the middle of the upper end face of the sliding seat (81), the spray gun (60) can be movably arranged on the positioning sliding rail (81a) through an I-shaped sliding chute (401) in the sliding seat (400) and matched with the positioning sliding rail (81a), a traction block (81b) with internal threads is arranged on the end face of the sliding seat (81) at the side end of the positioning sliding rail (81a), hydraulic telescopic cylinders (82) are symmetrically arranged at two ends of the positioning sliding rail (81a), one end of each hydraulic telescopic cylinder (82) is fixed on the movable platform (80), the other end of each hydraulic telescopic cylinder is abutted to the sliding seat (400) with a supporting plate (410), wherein a poking plate (82a) is arranged on the circumferential face of each hydraulic telescopic cylinder (82) close to one side of each traction block (81b), the lower end of the sliding seat (81) is connected with a telescopic material pipe (70), the telescopic material pipe (70) is formed by sequentially nesting a plurality of small material pipes with different diameters, one end of the telescopic material pipe is communicated with a spray pipe (500) in a spray gun (60) at the upper end of the sliding seat (81), and the other end of the telescopic material pipe is communicated with a conveying pipeline (50) connected with a pumping device (40).

7. The wood fiber spray-seeding machine for wall greening according to claim 4, wherein: the drive reversing device (90) comprises: the automatic transmission device comprises a driving transmission shaft (91), a driving pinion (92), a pushing pipe (93), a driving large gear (94), a reversing gear (95), a driven transmission shaft (96), a driven pinion (97), a driven large gear (98) and a speed change transmission box (99), wherein the driving transmission shaft (91) is fixedly arranged at the left end of the speed change transmission box (99) and is in power connection with an output shaft of the speed change transmission box (99), both ends of the driving transmission shaft (91) are respectively provided with a small section of rectangular spline (91a), the outer circumference of the driving transmission shaft (91) is sleeved with the pushing pipe (93), the left end and the right end of the pushing pipe (93) are respectively provided with symmetrical pushing rings (93a), the outer sides of the pushing rings (93a) at both ends of the pushing pipe (93) are respectively and fixedly provided with the driving large gear (94) and the driving pinion (92), the driven transmission shaft (96) is rotatably arranged at the lower side of the driving transmission shaft (91), and the surface of the driven transmission shaft (96) is provided with external threads which are in threaded connection with a threaded traction block (81b) on the sliding frame (400), the left end and the right end of the driving transmission shaft (91) are respectively provided with a driven large gear (98) and a driven small gear (97), a reversing gear (95) is arranged between the driving small gear (92) and the driven small gear (97), and the reversing gear (95) is an idler gear and is always meshed with the driven small gear (97).