Outdoor irrigation device for garden maintenance project

Abstract

The outdoor irrigation device for the garden maintenance project comprises a base, a height adjusting mechanism, a swing spraying mechanism and a range adjusting mechanism, and wheels are installed on the outer side of the base; the height adjusting mechanism is arranged above the base, the height adjusting mechanism comprises a first supporting column, a second supporting column, an adjusting wheel, a connecting ring and a limiting rod, the second supporting column is in threaded connection with the first connecting wheel, the first connecting wheel is in meshed connection with the adjusting wheel, and the range adjusting mechanism comprises a supporting spring, a positioning hole and a positioning block. According to the outdoor irrigation device for the garden maintenance project, the irrigation height and the spraying range can be flexibly adjusted, greening of different heights and sizes can be irrigated, the irrigation efficiency and the irrigation range are improved, spraying is uniform, it is guaranteed that greening irrigation is in place, the occupied area is small, flexibility is achieved, the outdoor irrigation device can be suitable for complex garden landscapes, operation is easy and rapid, and popularization is easy. The overall stability and the practicability are high.

Description

Technical Field

[0001] The invention relates to the technical field of garden maintenance engineering, in particular to an outdoor irrigation device used in garden maintenance engineering. Background Art

[0002] Gardens are natural recreational environments built and arranged by artificial means, usually including greening, mountains, garden paths and landscape sketches. Garden maintenance projects are part of garden management, including pruning, fertilization, watering and pest control. According to the types and growth conditions of plants, targeted maintenance measures are implemented to maintain the garden landscape in good condition and maintain the beauty and cleanliness of the landscape. Therefore, outdoor irrigation devices are needed to water and maintain the greening. There are many kinds of outdoor irrigation devices used in garden maintenance projects on the market. However, the current garden maintenance projects use sprinkler trucks or manual watering. Sprinkler trucks are large and cannot be used for refined maintenance operations. Manual watering is time-consuming and laborious. There are various types of garden greening, with different shapes, heights, widths and narrowness, which require different equipment for watering. The existing outdoor watering devices are not convenient to flexibly adjust the height and spraying range according to the different garden greening, and are not very practical. Therefore, we propose an outdoor irrigation device for garden maintenance engineering to solve the above-mentioned problems. Summary of the invention

[0003] The purpose of the present invention is to provide an outdoor irrigation device for garden maintenance projects to solve the problem raised in the above background technology that the current outdoor irrigation of garden maintenance projects uses sprinkler trucks or manual watering. The sprinkler trucks are large in size and cannot be used for refined maintenance operations. Manual watering is time-consuming and labor-intensive. Garden greening is of various types and shapes, with different heights, widths and narrowness, requiring different equipment for watering. The existing outdoor watering devices are not convenient for flexible adjustment of height and spraying range according to the different garden greening, and are not practical.

[0004] To achieve the above object, the present invention provides the following technical solution: an outdoor irrigation device for garden maintenance engineering, comprising: A base, with wheels mounted on the outer side of the base; Also includes: A height adjustment mechanism, the height adjustment mechanism is arranged above the base, the height adjustment mechanism comprises a first support column, a second support column, an adjustment wheel, a connecting ring and a limit rod, the second support column and the first connecting wheel are threadedly connected, and the first connecting wheel and the adjustment wheel are meshedly connected; The swing spraying mechanism comprises a second connecting wheel, a rack, a connecting plate, a second limit block, a derivation block, an adjustment rod and a connecting rod, wherein the second connecting wheel is meshedly connected to the rack, and the rack is slidably connected to the connecting plate, and the connecting plate, the derivation block, the push rod, the adjustment rod and the connecting rod are combined to form a linkage mechanism, and the push rod is connected to the adjustment rod by a slot; A range adjustment mechanism, the range adjustment mechanism includes a support spring, a positioning hole and a positioning block, the positioning block is slidably connected in the adjustment rod through the support spring, and the support spring is installed inside the adjustment rod, and the positioning block is fixed to the upper end of the support spring, and the positioning block is connected to the positioning hole slot.

[0005] Preferably, a water storage barrel is installed on the left front upper side of the base, and a water pump is installed on the right side of the water storage barrel, a water pipe is installed on the right side of the water pump, and a nozzle is installed on the upper end of the water pipe.

[0006] Preferably, a first support column is fixed to the upper rear side of the base, and a second support column is slidably connected inside the first support column, and a support plate is integrally provided at the top end of the second support column.

[0007] Preferably, a fixing frame is fixed to the outer upper end of the first support column, and a connecting ring is rotatably connected inside the fixing frame, a first connecting wheel is integrally provided above the connecting ring, and the second support column is tightly fitted inside the first connecting wheel.

[0008] Preferably, the inner slot of the second support column is connected to a limiting rod, and the cross section of the limiting rod is a "convex"-shaped structure, and the bottom end of the limiting rod is fixed in the first support column.

[0009] Preferably, an adjusting wheel is tightly fitted on the right side of the first connecting wheel, and a first motor is installed below the adjusting wheel, a fixing frame is installed below the first motor, and the fixing frame is fixed on the first supporting column, and a water pipe is connected to the inner slot of the fixing frame.

[0010] Preferably, a telescopic tube is fixed to the outer side of the lower side of the support plate, and the telescopic tube slot is connected to the outer side of the second support column, a fixing ring is fixed to the lower side of the telescopic tube, and auxiliary wheels are rotatably connected to the lower side of the fixing ring, and the auxiliary wheels are distributed at equal angles.

[0011] Preferably, a second connecting wheel is rotatably connected to the top of the support plate, and a nozzle is installed above the second connecting wheel. A rack is tightly fitted on the outer side of the second connecting wheel, and a first limit block is integrated on the outer side of the rack.

[0012] Preferably, the outer slot of the first limit block is connected to a connecting plate, and the longitudinal section of the first limit block is a "T"-shaped structure, a second limit block is fixed to the outer side of the connecting plate, and the second limit block is symmetrically distributed front to back, and the connecting plate is rotatably connected to the support plate.

[0013] Preferably, the middle part of the connecting plate is slidably connected with a guide block, and a push rod is fixed to the outer upper end of the guide block, positioning holes are opened at equal intervals above the push rod, and an adjusting rod is connected to the internal groove of the push rod, a connecting rod is installed at the outer end of the adjusting rod, and a second motor is installed below the connecting rod.

[0014] Compared with the prior art, the invention has the following beneficial effects: the outdoor irrigation device used in the garden maintenance project can flexibly adjust the irrigation height and spraying range, so that greenings of different heights and sizes can be irrigated, the irrigation efficiency and range are improved, the spraying is uniform, and the greening is ensured to be irrigated in place, the footprint is small, the device is more flexible, and the device can be applied to more complex garden landscapes, and the operation is simple and fast, the overall stability is high, and the practicability is strong; 1. A first connecting wheel, an adjusting wheel, a second supporting column and a limiting rod are provided. The second supporting column and the first connecting wheel are threadedly connected. The adjusting wheel drives the first connecting wheel meshed with it to rotate. The first connecting wheel drives the second supporting column to rise and fall, so that the second supporting column slides in the first supporting column. The second supporting column drives the supporting plate and the nozzle to rise and fall, and the irrigation height can be flexibly adjusted, so that greenings at different heights can be irrigated, thereby improving the irrigation efficiency and range; 2. A second connecting wheel, a rack, a connecting plate and a second limit block are provided. The second limit block is symmetrically provided on the connecting plate. The second limit block pushes the rack to slide back and forth, and the rack drives the second connecting wheel to reciprocate. The second connecting wheel drives the sprinkler to swing and spray evenly to ensure that the greening is watered in place; 3. A guide block, a support spring, a positioning hole and a positioning block are provided. The push rod and the adjusting rod are slidably connected. The positioning block slides in the adjusting rod through the support spring. By adjusting the position of the positioning block in different positioning holes, the length of the push rod and the adjusting rod can be adjusted, thereby adjusting the swing amplitude of the connecting plate and the second connecting wheel, and the irrigation spraying range can be flexibly adjusted so that greenings of different sizes can be irrigated; 4. A base, a telescopic tube and auxiliary wheels are provided. A water storage bucket and a water pump are installed on the base. The water in the water storage bucket is pumped upward by the water pump, and the base can be pushed for irrigation. The telescopic tube cover is on the outside of the second support column, and the auxiliary wheel rotates in the fixed ring to prevent the telescopic tube from shaking. It occupies a small area and is more flexible. It can be applied to more complex garden landscapes, and the operation is simple and fast, with high overall stability and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a rear view schematic diagram of the overall structure of the present invention; Figure 3 This is a schematic diagram of the overall structure of the first support column and the second support column connected to each other in the present invention; Figure 4 It is a schematic diagram of the overall structure of the height adjustment mechanism of the present invention; Figure 5 This is a schematic diagram of the overall structure of the telescopic tube and the fixing ring connected to each other in the present invention; Figure 6 It is a schematic diagram of the overall structure of the swing spraying mechanism of the present invention; Figure 7 It is a schematic diagram of the overall structure of the connection between the rack and the second connecting wheel of the present invention; Figure 8 This is a schematic diagram of the overall structure of the connection plate and the derivation block of the present invention; Fig. 9 For the present invention Figure 8 Enlarged structural diagram at A in the middle.

[0016] In the figure: 1. base; 2. wheels; 3. water storage barrel; 4. water pump; 5. water pipe; 6. nozzle; 7. first support column; 8. second support column; 9. first connecting wheel; 10. adjusting wheel; 11. connecting ring; 12. fixing frame; 13. limiting rod; 14. fixing frame; 15. first motor; 16. supporting plate; 17. telescopic tube; 18. fixing ring; 19. auxiliary wheel; 20. second connecting wheel; 21. rack; 22. first limiting block; 23. connecting plate; 24. second limiting block; 25. derivation block; 26. push rod; 27. adjusting rod; 28. supporting spring; 29. ​​positioning hole; 30. positioning block; 31. connecting rod; 32. second motor. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-9 The present invention provides a technical solution: an outdoor irrigation device for garden maintenance engineering, comprising: A base 1, with wheels 2 mounted on the outer side of the base 1; Also includes: A height adjustment mechanism is arranged above the base 1, and includes a first support column 7, a second support column 8, an adjustment wheel 10, a connecting ring 11 and a limit rod 13. The second support column 8 is threadedly connected to the first connecting wheel 9, and the first connecting wheel 9 is meshedly connected to the adjustment wheel 10; The swing spraying mechanism includes a second connecting wheel 20, a rack 21, a connecting plate 23, a second limit block 24, a derivation block 25, an adjustment rod 27 and a connecting rod 31. The second connecting wheel 20 and the rack 21 are meshed and connected, and the rack 21 is slidably connected to the connecting plate 23. The connecting plate 23, the derivation block 25, the push rod 26, the adjustment rod 27 and the connecting rod 31 are combined to form a linkage mechanism, and the push rod 26 and the adjustment rod 27 are connected by a slot; The range adjustment mechanism includes a support spring 28, a positioning hole 29 and a positioning block 30. The positioning block 30 is slidably connected in the adjustment rod 27 through the support spring 28, and the support spring 28 is installed inside the adjustment rod 27, and the positioning block 30 is fixed to the upper end of the support spring 28. The positioning block 30 and the positioning hole 29 are connected by a slot.

[0019] By adopting the above technical scheme, a height adjustment mechanism is formed by combining the first support column 7, the second support column 8, the adjusting wheel 10, the connecting ring 11 and the limiting rod 13, which is convenient for adjusting the spraying height; the second connecting wheel 20, the rack 21, the connecting plate 23, the second limiting block 24, the derivation block 25, the adjusting rod 27 and the connecting rod 31 are combined to form a swing spraying mechanism, which can spray evenly; the support spring 28, the positioning hole 29 and the positioning block 30 are combined to form a range adjustment mechanism, which can adjust the spraying range.

[0020] As attached Figure 1 and attached Figure 2 As shown in the figure, a water storage barrel 3 is installed on the upper left front side of the base 1, and a water pump 4 is installed on the right side of the water storage barrel 3, a water pipe 5 is installed on the right side of the water pump 4, and a nozzle 6 is installed on the upper end of the water pipe 5.

[0021] By adopting the above technical solution, a water storage bucket 3 is installed on the upper left front side of the base 1, and a water pipe 5 is installed on the right side of the water pump 4, so that the water source is self-provided and the operation is flexible.

[0022] As attached Figure 3 and attached Figure 4 As shown in FIG, a first support column 7 is fixed to the upper rear side of the base 1, and a second support column 8 is slidably connected inside the first support column 7, and a support plate 16 is integrally provided at the top end of the second support column 8.

[0023] By adopting the above technical solution, a first support column 7 is fixed to the upper rear side of the base 1, and a second support column 8 is slidably connected inside the first support column 7, so that the height of the support plate 16 can be adjusted as needed.

[0024] As attached Figure 3 and attached Figure 4 As shown in the figure, a fixing frame 12 is fixed to the outer upper end of the first support column 7, and a connecting ring 11 is rotatably connected inside the fixing frame 12. A first connecting wheel 9 is integrated above the connecting ring 11, and the second support column 8 is tightly fitted inside the first connecting wheel 9.

[0025] By adopting the above technical solution, a fixing frame 12 is fixed to the outer upper end of the first support column 7, and a first connecting wheel 9 is integrated above the connecting ring 11, which can effectively limit the first connecting wheel 9 and ensure stability.

[0026] As attached Figure 4 As shown in the figure, the inner slot of the second support column 8 is connected to the limiting rod 13, and the cross section of the limiting rod 13 is a "convex" shaped structure, and the bottom end of the limiting rod 13 is fixed in the first support column 7.

[0027] By adopting the above technical solution, the limiting rod 13 is connected through the internal slot of the second support column 8 . The cross section of the limiting rod 13 is a “convex”-shaped structure, which plays a limiting role on the second support column 8 .

[0028] As attached Figure 3 and attached Figure 4 As shown in the figure, the right side of the first connecting wheel 9 is tightly fitted with an adjusting wheel 10, and a first motor 15 is installed below the adjusting wheel 10, a fixing frame 14 is installed below the first motor 15, and the fixing frame 14 is fixed on the first supporting column 7, and the inner slot of the fixing frame 14 is connected to the water pipe 5.

[0029] By adopting the above technical solution, the adjusting wheel 10 is tightly fitted to the right side of the first connecting wheel 9, and the inner groove of the fixing frame 14 is connected to the water pipe 5, so the structure is stable and reliable.

[0030] As attached Figure 1 and attached Figure 5 As shown in the figure, a telescopic tube 17 is fixed to the outer side of the lower side of the support plate 16, and the telescopic tube 17 is connected to the outer side of the second support column 8 by a slot, a fixing ring 18 is fixed to the lower side of the telescopic tube 17, and an auxiliary wheel 19 is rotatably connected to the lower side of the fixing ring 18, and the auxiliary wheels 19 are distributed at equal angles.

[0031] By adopting the above technical solution, the telescopic tube 17 is connected to the outer side of the second support column 8 through the slot, and the auxiliary wheel 19 is rotatably connected to the lower inner part of the fixing ring 18, which can protect the second support column 8.

[0032] As attached Figure 6 , Attachment Figure 7 and attached Figure 8As shown in the figure, the second connecting wheel 20 is rotatably connected to the top of the support plate 16, and the nozzle 6 is installed above the second connecting wheel 20. The outer side of the second connecting wheel 20 is tightly fitted with a rack 21, and the outer side of the rack 21 is integrated with a first limit block 22.

[0033] By adopting the above technical solution, the second connecting wheel 20 is rotatably connected to the upper side of the support plate 16 , and the outer side of the rack 21 is integrally provided with a first limiting block 22 , which can drive the nozzle 6 to rotate.

[0034] As attached Figure 6 , Attachment Figure 7 and attached Figure 8 As shown in the figure, the outer slot of the first limit block 22 is connected to the connecting plate 23, and the longitudinal section of the first limit block 22 is a "T"-shaped structure, the outer side of the connecting plate 23 is fixed with a second limit block 24, and the second limit block 24 is symmetrically distributed front to back, and the connecting plate 23 is rotatably connected to the support plate 16.

[0035] By adopting the above technical solution, the longitudinal section of the first limit block 22 is in a "T" shape, and the second limit blocks 24 are symmetrically distributed front to back, which limit the rack 21 and ensure the stability of the rack 21 when sliding.

[0036] As attached Figure 8 and attached Fig. 9 As shown in the figure, the middle part of the connecting plate 23 is slidably connected with a guide block 25, and a push rod 26 is fixed to the upper end of the outer side of the guide block 25, positioning holes 29 are opened at equal intervals above the push rod 26, and an adjusting rod 27 is connected to the internal groove of the push rod 26, a connecting rod 31 is installed at the outer end of the adjusting rod 27, and a second motor 32 is installed below the connecting rod 31.

[0037] By adopting the above technical solution, the middle part of the connecting plate 23 is slidably connected with the derivation block 25, positioning holes 29 are evenly spaced above the push rod 26, and a connecting rod 31 is installed at the outer end of the adjusting rod 27 to adjust the sliding range of the derivation block 25.

[0038] First, as attached Figure 1 and attached Figure 2As shown in the figure, water is poured into the water storage barrel 3, and the base 1 is pushed to a suitable position. The wheels 2 are installed on the outside of the base 1 for easy movement. The first support column 7, the second support column 8, the adjusting wheel 10, the connecting ring 11 and the limiting rod 13 are combined to form a height adjustment mechanism to adjust the height of the nozzle 6. The second connecting wheel 20, the rack 21, the connecting plate 23, the second limiting block 24, the derivation block 25, the adjusting rod 27 and the connecting rod 31 are combined to form a swing spraying mechanism to drive the nozzle 6 to swing back and forth to increase the spraying range of the nozzle 6. The water pump 4 draws the water in the water storage barrel 3 upward and sprays it from the nozzle 6 to irrigate the greening. The middle section of the water pipe 5 is connected to the fixing frame 14 to limit the water pipe 5. The support spring 28, the positioning hole 29 and the positioning block 30 are combined to form a range adjustment mechanism to adjust the spraying range according to the shape and size of the greening. Specific embodiments

[0039] The existing outdoor irrigation device used in garden maintenance projects is not convenient for adjusting the height according to the size of the greening. In order to solve this technical problem, the present embodiment is as follows Figure 1 -Attached Figure 4 As shown in, the first motor 15 installed on the fixed frame 14 is turned on, and the first motor 15 drives the adjusting wheel 10 installed on its output end to rotate, and the adjusting wheel 10 drives the first connecting wheel 9 meshed with it to rotate, and a connecting ring 11 is fixed below the first connecting wheel 9, and the connecting ring 11 rotates in a fixed frame 12 connected to its card slot, and plays a limiting role on the first connecting wheel 9. The internal thread of the first connecting wheel 9 is connected to the second support column 8. When the first connecting wheel 9 rotates, the second support column 8 rises and falls in the first support column 7, and the internal card slot of the second support column 8 is connected to the limiting rod 13. The cross section of the limiting rod 13 is a "convex"-shaped structure, which can make the second support column 8 do linear motion, and the second support column 8 pushes the support plate 16 fixed on its top to rise and fall, and adjusts the height of the nozzle 6 installed on the support plate 16, so as to adjust the spraying height; Specific embodiments

[0040] This embodiment is shown in the attached Figure 1 , Attachment Figure 2 and attached Figure 5 As shown in , when the first motor 15 drives the adjusting wheel 10 and the first connecting wheel 9 to rotate, the upper part of the first connecting wheel 9 is closely fitted with the auxiliary wheel 19, and the auxiliary wheel 19 rotates in the fixing ring 18. The auxiliary wheels 19 distributed at equal angles ensure the stability of the fixing ring 18, and prevent the bottom end of the telescopic tube 17 from rotating with the first connecting wheel 9. The second support column 8 pushes the support plate 16 to rise and fall, and the support plate 16 drives the telescopic tube 17 fixed thereunder to extend and retract. The telescopic tube 17 covers the outer side of the second support column 8, and prevents the second support column 8 from being directly exposed to the outside, and prevents water or debris from falling on the second support column 8 to affect the operation of the second support column 8, and protects the second support column 8; Specific embodiments

[0041] The existing garden maintenance project uses outdoor irrigation devices that are not convenient for uniform spraying. In order to solve this technical problem, the present embodiment is as follows Figure 1 , Attachment Figure 6 -Attached Figure 8 As shown in the figure, the second motor 32 is turned on, the second motor 32 drives the connecting rod 31 installed at its output end to rotate, the connecting rod 31 pulls the adjusting rod 27 and the push rod 26 to move, so that the derivation block 25 slides in the connecting plate 23 connected to the slot therewith, the derivation block 25 drives the connecting plate 23 to rotate on the support plate 16, and the derivation block 25 pulls the connecting plate 23 to swing back and forth. When the second limit block 24 fixed on the connecting plate 23 contacts the rack 21, the connecting plate 23 continues to rotate, and the second limit block 24 pushes the rack 21 to move. The second connecting wheel 20 has a "T"-shaped structure, and the first limiting block 22 slides in the connecting plate 23 connected to the slot therewith, and limits the rack 21. The rack 21 is meshed and connected with the second connecting wheel 20. When the rack 21 moves, the second connecting wheel 20 rotates on the support plate 16 and drives the nozzle 6 installed above it to swing. The second limiting blocks 24 are symmetrically arranged on the connecting plate 23. When the two second limiting blocks 24 contact the rack 21 alternately, the rack 21 can be reciprocated, so that the second connecting wheel 20 and the nozzle 6 can swing back and forth; Specific embodiments

[0042] The existing outdoor irrigation device for garden maintenance projects is not convenient for adjusting the spraying range according to the form of greening. In order to solve this technical problem, the present embodiment is as follows Figure 6 -Attached Fig. 9 As shown in , the positioning block 30 is pressed inward, and the positioning block 30 pushes the supporting spring 28 fixed thereunder, so that the positioning block 30 is disengaged from the slot connection with the push rod 26 and is completely received in the adjusting rod 27. Then, the push rod 26 is slid on the adjusting rod 27, and the length of the push rod 26 and the adjusting rod 27 are adjusted. The elastic action of the supporting spring 28 pushes the positioning block 30 to pop out, so that the positioning block 30 and the positioning hole 29 are connected by the slot, and the push rod 26 and the adjusting rod 27 are fixed. The positioning holes 29 are evenly spaced on the push rod 26, so that the push rod 26 and the adjusting rod 27 can be fixed at different positions. By adjusting the swing range of the connecting plate 23, the swing range of the sprinkler head 6 can be adjusted, thereby adjusting the spraying range.

[0043] This is the entire working process of the outdoor irrigation device used in the garden maintenance project. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0044] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0045] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An outdoor irrigation device for garden maintenance engineering, comprising: A base (1), wherein wheels (2) are mounted on the outer side of the base (1); It is characterized by further comprising: A height adjustment mechanism, the height adjustment mechanism being arranged above the base (1), the height adjustment mechanism comprising a first support column (7), a second support column (8), an adjustment wheel (10), a connecting ring (11) and a limiting rod (13), the second support column (8) and the first connecting wheel (9) being threadedly connected, and the first connecting wheel (9) and the adjustment wheel (10) being meshingly connected; A swing spraying mechanism, the swing spraying mechanism comprising a second connecting wheel (20), a rack (21), a connecting plate (23), a second limit block (24), a derivation block (25), an adjustment rod (27) and a connecting rod (31), the second connecting wheel (20) and the rack (21) are meshingly connected, and the rack (21) is slidably connected to the connecting plate (23), the connecting plate (23), the derivation block (25), the push rod (26), the adjustment rod (27) and the connecting rod (31) are combined to form a linkage mechanism, and the push rod (26) and the adjustment rod (27) are connected by a slot; A range adjustment mechanism, the range adjustment mechanism comprising a support spring (28), a positioning hole (29) and a positioning block (30), the positioning block (30) being slidably connected in an adjustment rod (27) via the support spring (28), the support spring (28) being installed inside the adjustment rod (27), and the positioning block (30) being fixed at the upper end of the support spring (28), the positioning block (30) being connected to the positioning hole (29) by a slot.

2. The outdoor irrigation device for garden maintenance engineering according to claim 1, characterized in that: A water storage bucket (3) is installed on the upper left front side of the base (1), and a water pump (4) is installed on the right side of the water storage bucket (3). A water delivery pipe (5) is installed on the right side of the water pump (4), and a nozzle (6) is installed on the upper end of the water delivery pipe (5).

3. The outdoor irrigation device for garden maintenance engineering according to claim 1, characterized in that: A first support column (7) is fixed to the upper rear side of the base (1), a second support column (8) is slidably connected inside the first support column (7), and a support plate (16) is integrally provided at the top end of the second support column (8).

4. The outdoor irrigation device for garden maintenance engineering according to claim 3, characterized in that: A fixing frame (12) is fixed to the upper end of the outer side of the first support column (7), and a connecting ring (11) is rotatably connected inside the fixing frame (12), a first connecting wheel (9) is integrally provided above the connecting ring (11), and the second support column (8) is tightly fitted inside the first connecting wheel (9).

5. The outdoor irrigation device for garden maintenance engineering according to claim 3, characterized in that: The internal slot of the second support column (8) is connected to a limiting rod (13), and the cross section of the limiting rod (13) is in a "convex" shape. The bottom end of the limiting rod (13) is fixed in the first support column (7).

6. The outdoor irrigation device for garden maintenance engineering according to claim 4, characterized in that: An adjusting wheel (10) is tightly fitted to the right side of the first connecting wheel (9), and a first motor (15) is installed below the adjusting wheel (10). A fixing frame (14) is installed below the first motor (15), and the fixing frame (14) is fixed on the first supporting column (7), and a water pipe (5) is connected to an inner slot of the fixing frame (14).

7. The outdoor irrigation device for garden maintenance engineering according to claim 3, characterized in that: A telescopic tube (17) is fixed to the outer side of the lower side of the support plate (16), and the slot of the telescopic tube (17) is connected to the outer side of the second support column (8), a fixing ring (18) is fixed to the lower side of the telescopic tube (17), and auxiliary wheels (19) are rotatably connected to the lower side of the fixing ring (18), and the auxiliary wheels (19) are distributed at equal angles.

8. The outdoor irrigation device for garden maintenance engineering according to claim 3, characterized in that: A second connecting wheel (20) is rotatably connected above the support plate (16), and a nozzle (6) is installed above the second connecting wheel (20); a rack (21) is tightly fitted on the outer side of the second connecting wheel (20), and a first limiting block (22) is integrally provided on the outer side of the rack (21).

9. The outdoor irrigation device for garden maintenance engineering according to claim 8, characterized in that: The outer slot of the first limit block (22) is connected to a connecting plate (23), and the longitudinal section of the first limit block (22) is in a "T"-shaped structure. A second limit block (24) is fixed to the outer side of the connecting plate (23), and the second limit blocks (24) are symmetrically distributed frontward and rearward, and the connecting plate (23) is rotatably connected to the support plate (16).

10. The outdoor irrigation device for garden maintenance engineering according to claim 9, characterized in that: A guide block (25) is slidably connected to the middle of the connecting plate (23), and a push rod (26) is fixed to the outer upper end of the guide block (25), positioning holes (29) are arranged at equal intervals above the push rod (26), and an adjustment rod (27) is connected to the inner groove of the push rod (26), a connecting rod (31) is installed at the outer end of the adjustment rod (27), and a second motor (32) is installed below the connecting rod (31).

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