Fertilizing device for landscaping soil improvement

Abstract

The invention relates to the technical field of agricultural equipment, and provides a fertilizing device for landscaping soil improvement, the fertilizing device comprises a mobile vehicle body, a rotating mechanism, a shell mechanism, a transmission assembly and a soil crushing and fertilizer homogenizing part, the rotating mechanism comprises a driving part, a rotating pipe, a material guiding inclined pipe, a material falling pipe, a first fixing sleeve and a second fixing sleeve, the shell mechanism comprises a fertilizer storage box body, a fixed cover and a second tooth groove, the transmission assembly comprises a transmission ring, a gear transmission part, a first tooth groove and columnar teeth, and the soil crushing and fertilizer homogenizing part comprises a rotating sleeve, a curved groove and an arc-shaped plough blade. A plurality of arc-shaped plough blades which are annularly arranged can be simultaneously controlled to turn over soil and fertilizer in the horizontal direction, the tangential direction of a transmission ring, the tangential direction of respective first fixing sleeves or the radial direction of the transmission ring, and on the other hand, the fertilizer and the soil can be uniformly mixed in multiple directions; the soil conditioner has the characteristics of small soil granularity, uniform soil and fertilizer mixing and good soil improvement effect.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural equipment processing, and more particularly to a fertilizing device for landscaping soil improvement. Background Art

[0002] Soil improvement in landscaping is an important measure to improve soil quality and the plant growth environment. The methods of soil improvement include the application of organic fertilizers and physical improvement. Among them, the organic fertilizers are common granular organic fertilizers or liquid organic fertilizers on the market, such as fish fertilizer granules, earthworm manure granules, organic compound fertilizers, compost liquid or bacterial fertilizer liquid, etc.; physical improvement generally improves the soil structure by loosening the soil, plowing, etc., enhances the air permeability and drainage of the soil, and reduces soil compaction.

[0003] Patent No. CN118140794B discloses a mechanized fertilizing device for sandy soil planting, including a fertilizer tank, a connector is arranged on the side wall of the fertilizer tank, a material taking cylinder is fixedly installed on the bottom wall of the fertilizer tank, a material taking port is arranged on the side wall of the material taking cylinder, a fertilizing cylinder is arranged below the material taking cylinder, a positioning mechanism matched with the fertilizing cylinder is arranged on the bottom wall of the fertilizer tank, the positioning mechanism includes a support component and a lifting component, a fertilizing mechanism is arranged in the fertilizing cylinder, the fertilizing mechanism includes a material taking component and a fertilizing component, the material taking component includes a sealing part and a material taking part, and the fertilizing component includes a storage part and a discharging part, which solves the problem that currently the fertilizer is directly sprinkled on the soil surface, the fertility of the deep soil is poor, the roots of crops cannot absorb sufficient nutrients, and the fertilizing effect is poor.

[0004] During the soil improvement process, generally, the soil is first turned or plowed by a soil-turning mechanical device, and then the organic fertilizer is mixed with the soil. There are also the following defects: Since the plowed soil generally has large lumps, when using the above technical solutions for actual fertilization, it is impossible to break the soil lumps into small soil particles from multiple angles and directions during the fertilization process, nor can the organic fertilizer be efficiently and evenly mixed with the small soil particles, resulting in the soil improvement effect not reaching the expected effect. Summary of the Invention

[0005] The purpose of the present invention is to provide a fertilizing device for landscaping soil improvement, aiming to solve the problems existing when using existing mechanized fertilizing devices.

[0006] To achieve the above purpose, the present invention provides the following technical solution. A fertilizing device for landscaping soil improvement includes a mobile vehicle body, and further includes:

[0007] Rotating mechanism, the rotating mechanism includes a driving member, a rotating pipe, a feeding inclined pipe, a blanking pipe, a first fixing sleeve and a second fixing sleeve. The driving member is in transmission connection with the rotating pipe. One end of the feeding inclined pipe is fixedly connected to the rotating pipe. The first fixing sleeve is fixedly connected to the other end of the feeding inclined pipe. The blanking pipe is fixedly connected below the feeding inclined pipe. A second fixing sleeve is arranged between adjacent two first fixing sleeves;

[0008] Housing mechanism, the housing mechanism includes a fertilizer storage box body, a fixing cover and a second tooth groove. The fixing cover and the fertilizer storage box body are both fixedly connected below the fertilizer storage box body. The mobile vehicle body is fixedly connected to the fixing cover. The surface of the fixing cover is provided with a second tooth groove. The rotating pipe is rotatably connected in the fertilizer storage box body and is communicated with the fertilizer storage box body;

[0009] Transmission component, the transmission component includes a transmission ring, a gear transmission part, a first tooth groove and columnar teeth. The surface of the transmission ring is provided with a first tooth groove and columnar teeth. Both ends of the gear transmission part are in transmission connection with the second tooth groove and the first tooth groove respectively. The transmission ring is in sliding contact with the second fixing sleeve;

[0010] Soil crushing and fertilizer leveling part, the soil crushing and fertilizer leveling part includes a rotating sleeve, a curve groove and arc-shaped plow blades. The inner wall of the rotating sleeve is provided with a curve groove. A plurality of arc-shaped plow blades are fixedly connected to the outside of the rotating sleeve. The transmission ring penetrates between a plurality of the rotating sleeves. The columnar teeth are in sliding contact with the curve groove. The first fixing sleeve is movably sleeved on the surface of the rotating sleeve.

[0011] As a further scheme of the present invention, a plurality of feeding ports are arranged on the surface of the rotating pipe. A central pipe is fixedly connected to the bottom of the fertilizer storage box body. A plurality of feeding ports are arranged on the surface of the center. The rotating pipe is movably sleeved in the central pipe. The feeding ports are communicated with the feeding ports.

[0012] As a further scheme of the present invention, a stirring member is fixedly connected to the surface of the rotating pipe. The stirring member includes a stirring rod and stirring blades. The stirring rod is fixedly connected to the surface of the rotating pipe. The stirring blades are fixedly connected to the stirring rod.

[0013] As a further scheme of the present invention, an air pump is further included. The air pump is fixedly connected above the fertilizer storage box body. The air pump is connected with an exhaust pipe. A plug hole is arranged at the upper end of the rotating pipe. The exhaust pipe is inserted and connected in the plug hole.

[0014] As a further scheme of the present invention, a first transmission gear, a transmission rod and a second transmission gear. The first transmission gear and the second transmission gear are both fixedly connected to the transmission rod. The transmission rod is connected to one side of the rotating pipe. The first transmission gear and the second transmission gear are respectively in transmission connection with the second tooth groove and the first tooth groove.

[0015] As a further solution of the present invention, the rotating mechanism further includes an inclined rod, a driven gear, and a fixing plate. One end of the second fixing sleeve is fixedly connected to one end of the inclined rod, the other end of the inclined rod is fixedly connected to the material guiding inclined pipe, both the driven gear and the fixing plate are fixedly connected to the rotating pipe, and the driving member is in transmission connection with the driven gear.

[0016] As a further solution of the present invention, the mobile vehicle body includes a hydraulic telescopic rod, a lifting frame, a control panel, and a warning light. The hydraulic telescopic rod is fixedly connected between the mobile vehicle body and the lifting frame, the fixed cover is fixedly connected to the lifting frame, and both the control panel and the warning light are fixedly connected to the mobile vehicle body.

[0017] The beneficial effects of the present invention are as follows: When controlling the uniform rotation of the rotating pipe in the central pipe in this application, on the one hand, it can control the fertilizer in the fertilizer storage box to enter between several arc-shaped plow blades arranged in a ring or enter the position close to the center of the transmission ring through several ring-shaped material dropping pipes. On the other hand, it can simultaneously control several arc-shaped plow blades arranged in a ring to turn the soil and fertilizer along the horizontal direction, along the tangent direction of the transmission ring, along the tangent direction of their respective first fixing sleeves, or along the radial direction of the transmission ring. The arc-shaped plow blades with multi-directional movement and multi-trajectory movement can not only efficiently break up the caked soil from multiple directions, but also mix the fertilizer and soil evenly from multiple directions, featuring small soil particle size, uniform mixing of soil and fertilizer, and good soil improvement effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a perspective view of the present invention.

[0019] Figure 2 is an exploded view of the present invention.

[0020] Figure 3 is a perspective view of the rotating mechanism according to an embodiment of the present invention.

[0021] Figure 4 is a plane cross-sectional view of the rotating mechanism according to an embodiment of the present invention.

[0022] Figure 5 is a perspective view of the transmission component according to an embodiment of the present invention.

[0023] Figure 6 is a perspective view of the soil crushing and fertilizer leveling part according to an embodiment of the present invention.

[0024] Figure 7 is an assembly drawing of the transmission component and the soil crushing and fertilizer leveling part according to an embodiment of the present invention.

[0025] Figure 8 is a perspective view of the housing mechanism according to an embodiment of the present invention.

[0026] Figure 9 is a cross-sectional view of the present invention.

[0027] Figure 10 This is the front view of the invention embodiment.

[0028] Reference numerals: 1 - moving vehicle body, 11 - hydraulic telescopic rod, 12 - lifting frame, 13 - control panel, 14 - warning light, 2 - rotating mechanism, 21 - driving member, 22 - rotating pipe, 221 - feeding port, 222 - insertion hole, 23 - guiding inclined pipe, 231 - blanking pipe, 24 - inclined rod, 25 - first fixing sleeve, 26 - second fixing sleeve, 27 - stirring member, 28 - driven gear, 29 - fixing plate, 3 - transmission assembly, 31 - transmission ring, 32 - first transmission gear, 33 - transmission rod, 34 - second transmission gear, 35 - first tooth groove, 36 - columnar tooth, 4 - soil crushing and fertilizer leveling part, 41 - rotating sleeve, 42 - curve groove, 43 - arc-shaped plow blade, 5 - housing mechanism, 51 - fertilizer storage box, 52 - fixing cover, 53 - second tooth groove, 54 - central pipe, 541 - material guiding port, 55 - feeding port, 6 - air pump, 61 - exhaust pipe. Detailed implementation manners

[0029] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0030] The specific implementation of the present invention will be described in detail below in conjunction with specific embodiments.

[0031] Please refer to Figures 1 to 10 , in an embodiment of the present invention, a fertilizer applicator for landscaping soil improvement includes a moving vehicle body 1, and further includes:

[0032] A rotating mechanism 2, the rotating mechanism 2 includes a driving member 21, a rotating pipe 22, a guiding inclined pipe 23, a blanking pipe 231, a first fixing sleeve 25 and a second fixing sleeve 26. The driving member 21 is in transmission connection with the rotating pipe 22. One end of the guiding inclined pipe 23 is fixedly connected to the rotating pipe 22. The first fixing sleeve 25 is fixedly connected to the other end of the guiding inclined pipe 23. The blanking pipe 231 is fixedly connected below the guiding inclined pipe 23. A second fixing sleeve 26 is provided between adjacent two first fixing sleeves 25;

[0033] The housing mechanism 5, the housing mechanism 5 includes a fertilizer storage box 51, a fixed cover 52, a feeding port 55 and a second tooth groove 53. The fixed cover 52 and the fertilizer storage box 51 are both fixedly connected to the lower part of the fertilizer storage box 51. The mobile vehicle body 1 is fixedly connected to the fixed cover 52. The surface of the fixed cover 52 is provided with a second tooth groove 53. The rotating pipe 22 is rotatably connected in the fertilizer storage box 51. The rotating pipe 22 communicates with the fertilizer storage box 51. A feeding port 55 is arranged above the fertilizer storage box 51;

[0034] The transmission component 3, the transmission component 3 includes a transmission ring 31, a gear transmission part, a first tooth groove 35 and a columnar tooth 36. The surface of the transmission ring 31 is provided with a first tooth groove 35 and a columnar tooth 36. Both ends of the gear transmission part are respectively in transmission connection with the second tooth groove 53 and the first tooth groove 35. The transmission ring 31 is in sliding contact with the second fixed sleeve 26;

[0035] The soil crushing and fertilizer leveling part 4, the soil crushing and fertilizer leveling part 4 includes a rotating sleeve 41, a curve groove 42 and an arc-shaped plow blade 43. The inner wall of the rotating sleeve 41 is provided with a curve groove 42. A plurality of the arc-shaped plow blades 43 are fixedly connected to the outside of the rotating sleeve 41. The transmission ring 31 passes through between a plurality of the rotating sleeves 41. The columnar tooth 36 is in sliding contact with the curve groove 42. The first fixed sleeve 25 is movably sleeved on the surface of the rotating sleeve 41.

[0036] Please refer to Figures 6 to 10 , further, a first transmission gear 32, a transmission rod 33, a second transmission gear 34. Both the first transmission gear 32 and the second transmission gear 34 are fixedly connected to the transmission rod 33. The transmission rod 33 is connected to one side of the rotating pipe 22. The first transmission gear 32 and the second transmission gear 34 are respectively in transmission connection with the second tooth groove 53 and the first tooth groove 35.

[0037] Please refer to Figure 1 and Figure 10 , further, the mobile vehicle body 1 includes a hydraulic telescopic rod 11, a lifting frame 12, a control panel 13 and a warning light 14. The hydraulic telescopic rod 11 is fixedly connected between the mobile vehicle body 1 and the lifting frame 12. The fixed cover 52 is fixedly connected to the lifting frame 12. Both the control panel 13 and the warning light 14 are fixedly connected to the mobile vehicle body 1.

[0038] In the embodiment of the present invention, the hydraulic telescopic rod 11 is used to control the lifting of the lifting and rotating mechanism 2, the transmission component 3, the soil crushing and fertilizer leveling part 4 and the housing mechanism together to perform a lifting movement, and is used to adjust the soil turning depth of the arc-shaped plow blade 43.

[0039] Please refer to Figure 3 and Figure 9, in an embodiment of the present invention, a plurality of feed ports 221 are provided on the surface of the rotating tube 22. A central tube 54 is fixedly connected to the bottom of the fertilizer storage box 51. A plurality of material guiding ports 541 are provided on the surface of the central tube. The rotating tube 22 is movably sleeved in the central tube 54. The feed ports 221 communicate with the material guiding ports 541. The bottom of the rotating tube 22 is of a conical structure.

[0040] Please refer to Figure 3 and Figure 9 , further, a stirring member 27 is fixedly connected to the surface of the rotating tube 22. The stirring member 27 includes a stirring rod and stirring blades. The stirring rod is fixedly connected to the surface of the rotating tube 22. The stirring blades are fixedly connected to the stirring rod.

[0041] In an embodiment of the present invention, when the rotating tube 22 rotates uniformly in the central tube 54, on the one hand, the feed ports 221 communicate with the material guiding ports 541 at a certain frequency, so that the fertilizer in the fertilizer storage box 51 can enter the material guiding inclined tube 23 through the material guiding ports 541 and the feed ports 221, and then enter between a plurality of arc-shaped plow blades 43 or enter a position close to the center of the transmission ring 31 of the plurality of arc-shaped plow blades 43 along the blanking tube 231. On the other hand, the stirring member 27 following the rotating tube 22 can stir the fertilizer in the fertilizer storage box 51, thereby preventing the fertilizer in the fertilizer storage box 51 from bridging or clamping to cause blockage of the material guiding ports 541.

[0042] Please refer to Figure 1 and Figure 10 , in an embodiment of the present invention, it further includes an air pump 6. The air pump 6 is fixedly connected above the fertilizer storage box 51. The air pump 6 is connected with an exhaust pipe 61. A plug hole 222 is provided at the upper end of the rotating tube 22. The exhaust pipe 61 is inserted and connected in the plug hole 222.

[0043] In an embodiment of the present invention, when the driving member 21 controls the feed ports 221 not to align with the material guiding ports 541, the control panel 13 is used to control the air pump 6 to compress air into the rotating tube 22 through the exhaust pipe 61. The compressed air can prevent fertilizer blockage during the process of being discharged through the material guiding ports 541, the feed ports 221, the material guiding inclined tube 23 and the blanking tube 231.

[0044] Working principle: In the initial state, the feed port 221 is not aligned with the guide port 541, which is used to prevent the fertilizer in the fertilizer storage box 51 from leaking. When applying fertilizer, the control panel 13 is first used to control the driving member 21 to drive the rotating tube 22, the transmission assembly 3 and the soil crushing and fertilizer leveling part 4 to rotate around the axis of the rotating tube 22 through the driven gear 28. The first transmission gear 32 rotating with the rotating tube 22 as the axis drives the transmission rod 33 and the second transmission gear 34 to rotate by means of transmission connection with the second tooth groove 53. The rotating second transmission gear 34 controls the transmission ring 31 to rotate in the plurality of second fixed sleeves 26 by means of transmission connection with the first tooth groove 35. The rotating transmission ring 31 uses the columnar teeth 36 and the curved groove 42 to slide in connection to control the arc-shaped plow blades 43 to make circular motion with the first fixed sleeve 25 as the axis, so that the plurality of arc-shaped plow blades 43 symmetrically distributed and rotating with the rotating tube 22 as the axis, each of which makes circular motion with its own first fixed sleeve 25 as the axis.

[0045] When the rotating tube 22 rotates at a constant speed in the central tube 54, on the one hand, the feed port 221 is connected with the guide port 541 at a certain frequency, so that the fertilizer in the fertilizer storage box 51 can enter the guide inclined tube 23 through the guide port 541 and the feed port 221, and then enter between the plurality of arc-shaped plow blades 43 or enter the position of the plurality of arc-shaped plow blades 43 close to the center of the transmission ring 31 along the drop tube 231. On the other hand, the stirring member 27 following the rotating tube 22 can stir the fertilizer in the fertilizer storage box 51, so as to prevent the fertilizer in the fertilizer storage box 51 from bridging or blocking the guide port 541.

[0046] The movement of the mobile body 1 is controlled by the control panel 13, and the turning depth of the arc-shaped plow blades 43 is controlled by the hydraulic telescopic rod 11. In addition to being able to control the arc-shaped plow blades 43 to turn over the soil and fertilizer in the horizontal direction, the present application can also control each group of arc-shaped plow blades 43 to turn over the soil and fertilizer together along the tangential direction of the transmission ring 31, and can also control each group of arc-shaped plow blades 43 to turn over the soil and fertilizer along the tangential direction of their respective first fixed sleeves 25 or along the radial direction of the transmission ring 31. The arc-shaped plow blades 43 with multi-directional and multi-track motion can not only efficiently break up the agglomerated soil from multiple directions, but also can mix the fertilizer and soil evenly from multiple directions, thereby improving the soil improvement efficiency.

[0047] In summary, when the present application controls the rotation pipe 22 to rotate uniformly in the central pipe 54, on the one hand, it can control the fertilizer in the fertilizer storage box 51 to enter between a plurality of annularly arranged blanking pipes 231 or enter the positions of a plurality of arc-shaped plow blades 43 close to the center of the transmission ring 31. On the other hand, it can simultaneously control a plurality of annularly arranged arc-shaped plow blades 43 to turn the soil and fertilizer along the horizontal direction, along the tangent direction of the transmission ring 31, along the tangent direction of their respective first fixing sleeves 25, or along the radial direction of the transmission ring 31. The arc-shaped plow blades 43 with multi-directional movement and multi-trajectory movement can not only break up the lumpy soil efficiently from multiple directions, but also mix the fertilizer and the soil evenly from multiple directions, having the characteristics of small soil particle size, uniform mixing of soil and fertilizer, and good soil improvement effect.

[0048] For those skilled in the art, although several embodiments and examples of the present invention have been described, these embodiments and examples are presented as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in various other ways, and various omissions, substitutions, and changes can be made without departing from the gist of the invention.

[0049] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fertilizing device for improving landscaping soil, comprising a mobile vehicle (1), characterized in that: Also includes: A rotating mechanism (2), the rotating mechanism (2) comprising a driving member (21), a rotating tube (22), a material guiding inclined tube (23), a material dropping tube (231), a first fixed sleeve (25) and a second fixed sleeve (26), the driving member (21) being transmission-connected to the rotating tube (22), one end of the material guiding inclined tube (23) being fixedly connected to the rotating tube (22), the first fixed sleeve (25) being fixedly connected to the other end of the material guiding inclined tube (23), the material dropping tube (231) being fixedly connected to the lower part of the material guiding inclined tube (23), and a second fixed sleeve (26) being arranged between two adjacent first fixed sleeves (25); A housing mechanism (5), the housing mechanism (5) comprising a fertilizer storage box (51), a fixed cover (52) and a second tooth groove (53), the fixed cover (52) and the fertilizer storage box (51) are both fixedly connected to the bottom of the fertilizer storage box (51), the mobile vehicle body (1) is fixedly connected to the fixed cover (52), the surface of the fixed cover (52) is provided with a second tooth groove (53), the rotating tube (22) is rotatably connected in the fertilizer storage box (51), and the rotating tube (22) is in communication with the fertilizer storage box (51); A transmission assembly (3), the transmission assembly (3) comprising a transmission ring (31), a gear transmission part, a first tooth groove (35) and a columnar tooth (36); the surface of the transmission ring (31) is provided with the first tooth groove (35) and the columnar tooth (36); two ends of the gear transmission part are respectively connected to the second tooth groove (53) and the first tooth groove (35); the transmission ring (31) is in sliding contact with the second fixed sleeve (26); A soil crushing and fertilizing section (4), the soil crushing and fertilizing section (4) comprising a rotating sleeve (41), a curved groove (42) and an arc-shaped plow blade (43), the inner wall of the rotating sleeve (41) being provided with a curved groove (42), a plurality of the arc-shaped plow blades (43) being fixedly connected to the outer side of the rotating sleeve (41), the transmission ring (31) passing through a plurality of the rotating sleeves (41), the columnar teeth (36) being in sliding contact with the curved groove (42), and the first fixed sleeve (25) being movably sleeved on the surface of the rotating sleeve (41).

2. A fertilizing device for improving landscaping soil according to claim 1, characterized in that: The surface of the rotating tube (22) is provided with a plurality of feed ports (221); the bottom of the fertilizer storage box (51) is fixedly connected with a central tube (54); the central surface is provided with a plurality of material guide ports (541); the rotating tube (22) is movably sleeved in the central tube (54); and the feed ports (221) are in communication with the material guide ports (541).

3. A fertilizing device for improving landscaping soil according to claim 2, characterized in that: The surface of the rotating tube (22) is fixedly connected with a stirring member (27), the stirring member (27) comprising a stirring rod and a stirring blade, the stirring rod is fixedly connected to the surface of the rotating tube (22), and the stirring blade is fixedly connected to the stirring rod.

4. A fertilizing device for improving landscaping soil according to claim 1, characterized in that: The invention also comprises an air pump (6), wherein the air pump (6) is fixedly connected above the fertilizer storage box (51), the air pump (6) is connected to an exhaust pipe (61), the upper end of the rotating tube (22) is provided with a plug hole (222), and the exhaust pipe (61) is plugged and connected in the plug hole (222).

5. A fertilizing device for improving landscaping soil according to claim 1, characterized in that: A first transmission gear (32), a transmission rod (33), and a second transmission gear (34); the first transmission gear (32) and the second transmission gear (34) are both fixedly connected to the transmission rod (33); the transmission rod (33) is connected to one side of the rotating tube (22); the first transmission gear (32) and the second transmission gear (34) are respectively transmission-connected to the second tooth groove (53) and the first tooth groove (35).

6. A fertilizing device for improving landscaping soil according to claim 1, characterized in that: The rotating mechanism (2) further comprises an inclined rod (24), a driven gear (28) and a fixed plate (29); the second fixed sleeve (26) is fixedly connected to one end of the inclined rod (24); the other end of the inclined rod (24) is fixedly connected to the material guiding inclined tube (23); the driven gear (28) and the fixed plate (29) are both fixedly connected to the rotating tube (22); and the driving member (21) is transmission-connected to the driven gear (28).

7. A fertilizing device for improving landscaping soil according to claim 1, characterized in that: The mobile vehicle body (1) comprises a hydraulic telescopic rod (11), a lifting frame (12), a control panel (13) and a warning light (14); the hydraulic telescopic rod (11) is fixedly connected between the mobile vehicle body (1) and the lifting frame (12); the fixed cover (52) is fixedly connected to the lifting frame (12); and the control panel (13) and the warning light (14) are both fixedly connected to the mobile vehicle body (1).

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