A self-compacting rockfill grading and stockpiling device

Abstract

The application discloses a self-compacting rockfill grading and storing device, and relates to the self-compacting rockfill transportation field.The device comprises a material receiving part for receiving raw materials; a first grading part for transporting the raw materials is arranged at the end of the material receiving part; a second grading part for grading the raw materials is arranged at the first grading part; the material receiving part comprises a material receiving disc which is fixed to the ground, a discharging port is arranged in the middle of the material receiving disc, a lifting rod is rotatably arranged on the inner wall of the discharging port, a spiral lifting plate is fixed to the side wall of the lifting rod, a protection cylinder for preventing the raw materials from separating from the spiral lifting plate is fixed to the material receiving disc, a grading component is arranged at the top of the protection cylinder, and the first grading part is connected to the grading component. The application has the effect of facilitating the differentiation of self-compacting rockfills with different sizes.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of self-compacting rock transportation, in particular to a self-compacting rock grading into warehouse device. BACKGROUND

[0002] The self-compacting rock refers to directly stacking large-diameter block stones into a warehouse, and then pouring special self-compacting rock concrete on the surface of the rock body without any vibration.

[0003] In the prior art, the self-compacting rock is directly unloaded to a designated place, which leads to that the larger self-compacting rock and the smaller self-compacting rock are not easy to separate, and cannot adapt to different working conditions. SUMMARY

[0004] In order to distinguish the self-compacting rocks of different sizes, the present application provides a self-compacting rock grading into warehouse device.

[0005] The self-compacting rock grading into warehouse device provided by the present application adopts the following technical scheme:

[0006] The self-compacting rock grading into warehouse device comprises a material receiving part for receiving raw materials; a first grading part for transporting the raw materials is arranged at the end of the material receiving part; a second grading part for grading the raw materials is arranged at the first grading part; the material receiving part comprises a material receiving disc, the material receiving disc is fixed to the ground, a material discharging port is formed in the middle of the material receiving disc, a lifting rod is rotatably arranged on the inner wall of the material discharging port, a spiral lifting plate is fixed to the side wall of the lifting rod, a protective cylinder for preventing the raw materials from separating from the spiral lifting plate is fixed to the material receiving disc, a grading component is arranged at the top of the protective cylinder, and the first grading part is connected to the grading component.

[0007] Through the above technical scheme, after the raw materials are unloaded, the grading into warehouse is performed at the material receiving part, the first grading part and the second grading part, so that the size distribution of the raw materials is more uniform, the raw materials are more compact, the firmness after the construction is completed is improved, in addition, the grading into warehouse increases the raw materials that can be accommodated in the same warehouse, and the utilization efficiency of the warehouse is improved.

[0008] Optionally, the material receiving disc comprises a plurality of combined plates connected to each other at the ends, the combined plates are trapezoidal, adjacent two combined plates are connected through rotation, a lifting cylinder is slidably arranged at the bottom of the material receiving disc, the top of the lifting cylinder abuts against the bottom of the combined plate, and the movement of the lifting cylinder drives the rotation of the combined plate.

[0009] Through the above technical scheme, the combined plate can rotate, the side wall of the combined plate contacts or does not contact when rotating, the movement of the larger raw materials is driven, and the smaller raw materials are preliminarily screened and graded at the same time, so that the process of the raw materials into the warehouse is facilitated.

[0010] Optionally, the grading component comprises a first grading plate fixed on the top of the protection cylinder, the first grading plate is arranged obliquely, and a second grading plate is fixed on the first grading plate, the second grading plate is perpendicular to the first grading plate, and the first grading plate is detachably connected to the first grading part.

[0011] By adopting the technical scheme, the first grading plate and the second grading plate are perpendicular to each other, so that the second grading plate has a limiting effect on the raw materials on the first grading plate, and the possibility of position deviation of the raw materials is reduced.

[0012] Optionally, the first grading part is arranged in an inverted "m" shape in cross section, the two channels of the first grading part have different widths, and the first grading part is provided with a first partition plate and a second partition plate at the connection position of the first grading part and the first grading plate, the first partition plate and the second partition plate are arranged obliquely and have opposite oblique directions, the end of the first partition plate is close to the first grading plate, and the end of the second partition plate is away from the first grading plate.

[0013] By adopting the technical scheme, the first grading part is arranged in an inverted "m" shape in cross section, and the two channels of the first grading part have different widths, so that raw materials of different sizes can enter the two channels with different widths, and re-grading is completed, and raw materials of different specifications are transferred to different positions.

[0014] Optionally, a plurality of brake grooves are formed in the first grading part, a brake disc is rotatably arranged on the inner side wall of the brake groove, two first brake rods are fixed on the brake disc, and a second brake rod is rotatably arranged in the brake groove and used to drive the first brake rod to rotate.

[0015] By adopting the technical scheme, the second brake rod drives the first brake rod to move, the first brake rod has a limiting effect on the position of the raw materials, and the raw materials are uniformly transported with the rotation of the first brake rod.

[0016] Optionally, the rotating shaft of the second brake rod is arranged above the rotating shaft of the brake disc, and a brake guide surface is formed in the rotating shaft of the second brake rod.

[0017] By adopting the technical scheme, the brake guide surface is in contact with the bottom surface of the first grading part, and the first grading part is driven to rotate in the rotation process of the first brake rod, so that the transportation process of the raw materials is facilitated.

[0018] Optionally, a plurality of dispersion grooves are formed in the side wall of the first grading part, the side wall of the second grading part abuts against the side wall of the first grading part, and the dispersion grooves are communicated with the second grading part.

[0019] By adopting the technical scheme, in the vibration process, the raw materials on the first grading part are transferred to the second grading part through the dispersion grooves, and re-screening of the raw materials is completed.

[0020] Optionally, the bottom of the material receiving disc is provided with a conveying belt, and the side wall of the conveying belt is provided with a roller.

[0021] By adopting the above technical scheme, the conveying belt can transfer the raw materials at the bottom of the material receiving disc to a predetermined location, thereby facilitating the grading and storage process of the raw materials.

[0022] Optionally, the bottom of the first grading part and the second grading part is detachably connected with an adjusting frame, the bottom of the adjusting frame is provided with a roller, and the top of the adjusting frame is fixed with a plurality of adjusting springs.

[0023] By adopting the above technical scheme, the top of the adjusting frame is provided with adjusting springs, which can provide a buffering force for the vibration of the first grading part, thereby facilitating the grading process of the first grading part.

[0024] Optionally, the adjusting frame comprises a first frame body and a plurality of height increasing parts, the adjusting springs are fixed to the top of the first frame body, the height increasing parts are arranged at the bottom of the first frame body and are detachably connected with the first frame body, the end of the height increasing part opposite to the first frame body is fixed with a support column, the side wall of the support column is arranged obliquely, the bottom of the height increasing part and the bottom of the first frame body are both provided with a support hole for penetrating the support column, and the roller is threadedly connected to the support hole.

[0025] By adopting the above technical scheme, the number of height increasing parts is adjusted, and the height of the adjusting frame is adjusted, thereby facilitating the storage process of the raw materials.

[0026] In summary, the present application has at least one of the following beneficial technical effects:

[0027] 1. After the raw materials are unloaded, the grading and storage are performed at the material receiving part, the first grading part and the second grading part, so that the size distribution of the raw materials is more uniform, thereby making the raw materials more compact and improving the firmness after the construction is completed. In addition, the grading and storage enables the same warehouse to accommodate more raw materials, thereby improving the utilization efficiency of the warehouse.

[0028] 2. The material receiving disc comprises a plurality of combined plates connected with each other at the ends, the combined plates are trapezoidal, and the adjacent two combined plates are connected through rotation, the bottom of the material receiving disc is slidably provided with a lifting cylinder, the top of the lifting cylinder abuts against the bottom of the combined plate, and the movement of the lifting cylinder drives the rotation of the combined plate. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a schematic diagram of the main structure of the embodiment of the present application.

[0030] Figure 2 is Figure 1 is an enlarged view of part A in FIG. 6.

[0031] Figure 3is a first brake lever and a second brake lever position diagram.

[0032] Figure 4 is Figure 1 is a B part of the middle enlarged view.

[0033] Figure 5 is a support column and support hole connection method cross-sectional view.

[0034] Figure 6 is a rotating shaft and rotating ring diagram.

[0035] BRIEF DESCRIPTION OF DRAWINGS

[0036] 1, receiving part; 2, first grading part; 3, second grading part; 4, receiving disc; 5, stripping port; 6, lifting rod; 7, spiral lifting plate; 8, protective cylinder; 9, combined plate; 10, lifting cylinder; 11, first grading plate; 12, second grading plate; 13, first separation plate; 14, second separation plate; 15, brake groove; 16, brake disc; 17, first brake lever; 18, second brake lever; 19, brake guide surface; 20, dispersion groove; 21, conveyor belt; 22, roller; 23, adjusting frame; 24, adjusting spring; 25, first frame body; 26, heightening part; 27, support column; 28, support hole; 29, support cylinder; 30, connecting rod; 31, rotating shaft; 32, rotating ring. DETAILED DESCRIPTION

[0037] The following will be described in detail in combination with the accompanying Figures 1-6 The application is further described in detail.

[0038] The embodiment of the application discloses a self-compacting rockfill grading and warehousing device. Figure 1 The self-compacting rockfill grading and warehousing device comprises a receiving part 1, which is used for receiving raw materials, and a first grading part 2 arranged at the receiving part 1, the first grading part 2 is used for preliminarily grading the raw materials and plays a transporting role, a second grading part 3 is arranged at the first grading part 2, the second grading part 3 is used for twice grading the raw materials, and the second grading part 3 can also play a role in grading the raw materials; a transfer device is arranged between the first grading part 2 and the receiving part 1, so that the raw materials can be transferred from the receiving part 1 to the first grading part 2, thereby facilitating the preliminary grading process of the raw materials.

[0039] Refer to Figure 1 and Figure 2, the receiving part 1 comprises a receiving disc 4, the receiving disc 4 is arranged on the ground and is fixed on the ground through bolts, a discharging port 5 is arranged in the middle of the receiving disc 4, the discharging port 5 is coaxially arranged with the receiving disc 4, a lifting rod 6 is rotatably arranged on the inner wall of the discharging port 5 through a rotating shaft, the lifting rod 6 is coaxially arranged with the receiving disc 4, and the side wall of the lifting rod 6 is fixedly connected with a spiral lifting plate 7 through bolts, the spiral lifting plate 7 is spirally arranged on the side wall of the lifting rod 6, and in the process of rotating the lifting rod 6, the spiral lifting plate 7 is driven to rotate synchronously, a lifting motor is fixed on the ground through bolts, a lifting gear is connected to the lifting motor through a key and is engaged with the lifting rod 6, and the lifting motor is started to drive the lifting rod 6 to rotate, so that the working process of the lifting rod 6 is facilitated; a supporting cylinder is fixed on the ground through bolts, the receiving disc 4 is connected with the outer wall of the supporting cylinder, the inner wall of the supporting cylinder is fixedly connected with a connecting rod through bolts, and the end of the connecting rod is fixedly connected with a protective cylinder 8 through bolts, the protective cylinder 8 is arranged outside the lifting rod 6 and is coaxially arranged with the lifting rod 6, and the rotation of the protective cylinder 8 will not affect the rotation of the spiral lifting plate 7; the top of the protective cylinder 8 is provided with a grading component, and a first fan part is connected to the grading component.

[0040] With reference to Figure 1 and Figure 2 , the receiving disc 4 comprises a plurality of combined plates 9, the ends of the combined plates 9 are connected with each other, and the combined plates 9 are trapezoidal, that is, the ends of the combined plates 9 are rotatably connected to the outer side wall of the supporting cylinder through rotating shafts, when the combined plates 9 are horizontally arranged, the side walls of adjacent two combined plates 9 do not contact with each other, when the combined plates 9 are arranged at an angle, the side walls of adjacent two combined plates 9 contact with each other, at this time, the receiving disc 4 is arranged at an angle, when the raw materials are placed on the receiving disc 4, the raw materials will move towards the discharging port 5, so that the working process is facilitated, the receiving disc 4 is provided with a lifting cylinder 10, a lifting oil cylinder is fixed on the ground through bolts, the lifting oil cylinder is used to drive the lifting cylinder 10 to move in the vertical direction, the top of the lifting cylinder 10 abuts against the bottom of the combined plate 9, and in the process of moving the lifting cylinder 10, the combined plate 9 is driven to move, so that the inclination of the combined plate 9 is controlled, the raw materials can move to the discharging port 5 more quickly, and the gap between adjacent two combined plates 9 can screen small raw materials, so that the effect of preliminary screening is achieved.

[0041] With reference to Figure 1 , Figure 2 and Figure 3, the grading component includes a first grading plate 11 fixed on the top of the protection cylinder 8 by bolts, the first grading plate 11 is annular, and the first grading plate 11 is arranged in an inclined manner, the position close to the protection cylinder 8 is higher than the position away from the protection cylinder 8, the rotation of the lifting rod 6 drives the rotation of the spiral lifting plate 7, and the raw materials are transported to the first grading plate 11, and the inclined first grading plate 11 facilitates the raw materials to be separated; a plurality of second grading plates 12 are fixed on the first grading plate 11 by bolts, the end faces of the second grading plates 12 are perpendicular to the end face of the first grading plate 11, and meanwhile, the plurality of second grading plates 12 are unevenly distributed on the first grading plate 11, the intervals between adjacent two second grading plates 12 are different, so that raw materials of different specifications are facilitated to be transferred; the second grading plates 12 play a role of re-screening, and after the interval is selected, other intervals can be closed by baffles, so that the possibility of position deviation of the raw materials is reduced.

[0042] With reference to Figure 1 , Figure 3 and Figure 4 , the first grading plate 11 and the first grading part 2 are detachably connected in a threaded connection manner, the first grading part 2 is arranged in an inverted "m" shape in cross section, and the first grading part 2 has two passages, which are a first passage and a second passage, and the widths of the two passages are different, the width of the first passage is greater than that of the second passage, so as to facilitate the screening of the raw materials; the first grading part 2 is provided with a first partition plate 13 and a second partition plate 14 fixed by bolts at the connection position of the first grading part 2 and the first grading plate 11, the first partition plate 13 and the second partition plate 14 are arranged in an inclined manner, and the inclined directions of the first partition plate 13 and the second partition plate 14 are opposite, the portions of the first partition plate 13 and the second partition plate 14 close to the first grading plate 11 are away from each other, the end portion of the first partition plate 13 is relatively close to the first grading plate 11, the end portion of the second partition plate 14 is relatively far away from the first grading plate 11, and meanwhile, the second partition plate 14 is connected to the baffle between the first passage and the second passage, the raw materials can enter the first passage through the space between the first partition plate 13 and the second partition plate 14, or enter the second passage through the space between the second partition plate 14 and the first grading part 2, so as to complete the re-screening of the raw materials, and meanwhile, the first partition plate 13 and the second partition plate 14 have the function of limiting the size of the raw materials.

[0043] With reference to Figure 1 , Figure 3 and Figure 4, the first grading part 2 is provided with a plurality of brake grooves 15, the inner side wall of the brake groove 15 is provided with a brake disc 16 through a rotating shaft, the end surface of the brake disc 16 is connected with two first brake rods 17 through a rotating shaft, the two first brake rods 17 are radially symmetrical about the brake disc 16, a second brake rod 18 is arranged in the brake groove 15, the second brake rod 18 is used for driving the brake disc 16 to rotate, so that the first brake rod 17 is driven to rotate; the second brake rod 18 is in the shape of “L”, and the rotating shaft of the second brake rod 18 is arranged above the rotating shaft of the rotating disc, that is, when the second rotating rod rotates in the vertical state, it is in contact with one of the first brake rods 17 and drives the brake disc 16 to rotate, and when it rotates to the bottom of the vertical direction, because the positions of the rotating shafts are different, the first brake rod 17 is separated from the second brake rod 18, that is, at this time, the positions of the two first brake rods 17 are exchanged, and the next rotating process is not affected; a brake guide surface 19 is arranged on the rotating shaft of the second brake rod 18, the brake guide surface 19 is arranged horizontally and in contact with the bottom of the first grading part 2, and the ground is fixed to the brake table through bolts, the second brake rod 18 is arranged on the brake table, and the brake table is fixed with a brake motor through bolts, and the rotating shaft of the brake motor is connected to the second brake rod 18 through a key, so that the position of the first brake rod 17 can be changed during the rotation of the second brake rod 18, and the function of intercepting raw materials is realized, and at the same time, due to the limitation of the shape of the rotating shaft of the second brake rod 18, the second brake rod 18 drives the first grading part 2 to vibrate during the movement, so as to facilitate the movement of the raw materials.

[0044] Referring to Figure 1 , Figure 3 and Figure 4 , a plurality of dispersion grooves 20 are arranged in the side wall of the first grading part 2, the sizes of the plurality of dispersion grooves 20 are different, the side wall of the second grading part 3 abuts against the side wall of the first grading part 2, and the dispersion grooves 20 are communicated with the second grading part 3, the lower end surface of the dispersion groove 20 abuts against the inner bottom of the first grading part 2, so as to facilitate the transfer of raw materials, and during the rotation process, raw materials of different sizes will be transferred to the second grading part 3, so as to complete the sorting effect.

[0045] Referring to Figure 1 , Figure 5 and Figure 6The bottom of the material receiving disc 4 is provided with a conveying belt 21 for receiving the raw materials falling on the material receiving disc 4 and transferring them to a designated location. The side wall of the conveying belt 21 is rotatably connected with a roller 22, which facilitates the movement of the conveying belt 21, thereby facilitating the transfer of the end of the conveying belt 21 to different locations. The end of the conveying belt 21 close to the material receiving disc 4 is fixed with a plurality of rotating shafts, which surround the bottom of the material receiving disc 4 and leave a position for a cylinder. A rotating ring is rotatably connected to the rotating shaft. The cylinder can be placed in the rotating ring and connected with the conveying belt 21, which facilitates the transfer of the raw materials to the conveying belt 21 for transportation. The first classification part 2 and the second classification part 3 are provided with an adjusting frame 23 at the bottom. The bottom of the adjusting frame 23 is provided with a roller 22. A plurality of adjusting springs 24 are fixed to the top of the adjusting frame 23 by adhesion. The end of the adjusting spring 24 is fixed with a support plate by adhesion. The support plate is in contact with the first classification part 2 and the second classification part 3, thereby supporting the first classification part 2 and the second classification part 3. The adjusting spring 24 can also serve as a buffer and an adjusting device. The roller 22 facilitates the adjustment of the position of the adjusting frame 23, so that the raw materials can move to a designated location.

[0046] Referring to Figure 1 , Figure 5 and Figure 6 , the adjusting frame 23 includes a first frame body 25 and a plurality of height increasing parts 26. The adjusting spring 24 is fixed to the top of the first frame body 25. The height increasing part 26 is arranged at the bottom of the first frame body 25 and is detachably connected with the first frame body 25. By adjusting the number of height increasing parts 26, the height of the adjusting frame 23 can be adjusted, thereby adjusting the height of the first classification part 2 and the second classification part 3. The end of the height increasing part 26 opposite to the first frame body 25 is fixed with a support column 27 by integral molding. The side wall of the support column 27 is inclined, i.e. the support part is in the shape of a circular truncated cone. The bottom of the height increasing part 26 and the bottom of the first frame body 25 are both provided with a support hole 28 for passing the support column 27. Since the side wall of the support column 27 is inclined, the support hole 28 can also have a good fixing effect even if it is deformed, and has high stability. The roller 22 is connected to the support hole 28 in the height increasing part 26 at the bottom by threaded connection, which facilitates the movement of the adjusting frame 23.

[0047] The implementation principle of the self-compacting rockfill grading and storing device is as follows: the rockfill raw materials are unloaded to the receiving disc 4, the combined plate 9 of the receiving disc 4 reciprocating rotates, the raw materials are transferred to the discharging port 5, and at the same time, the smaller raw materials fall onto the conveying belt 21 and are transported to the designated position to complete the preliminary grading; the raw materials moved to the discharging port 5 are lifted by the spiral lifting plate 7, and since the raw materials are always moving, the raw materials far from the discharging port 5 provide a thrust to the raw materials close to the discharging port 5, which is the spiral lifting plate 7 in the rotating process and can drive the raw materials to be lifted to the first grading plate 11 to be graded for the second time, the grading at this place is manual screening of the appropriate size interval, after the screening is completed, the raw materials enter the first grading part 2, are graded under the action of the first separation plate 13 and the second separation plate 14, and enter the first channel and the second channel, and are transferred to the second grading part 3 in the movement process to complete four times of grading, at the same time, the first grading part 2, the second grading part 3 and the receiving disc 4 have corresponding conveying belts 21 to receive the raw materials and transfer them to different positions to complete the grading and storing of the raw materials.

[0048] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, so: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A self-compacting rockfill staging and binning apparatus, characterised in that: The utility model provides a kind of material receiving device, including the material receiving part (1) for receiving raw material;The first grading part (2) for transporting raw material is provided with at the end of the material receiving part (1);Second grading part (3) for grading raw material is provided at the first grading part (2);The material receiving part (1) includes material receiving disc (4), the material receiving disc (4) is fixed to ground, and the material receiving disc (4) middle part is equipped with the material outlet (5), the inner wall of the material outlet (5) is rotatably provided with lifting rod (6), the side wall of the lifting rod (6) is fixed with spiral lifting plate (7), and material receiving disc (4) is fixed with the protective cylinder (8) for preventing raw material from separating from spiral lifting plate (7);The grading component is provided at the top of the protective cylinder (8), and the first grading part (2) is connected to the grading component; The material receiving disc (4) includes a plurality of end-to-end connected combination plates (9), the combination plate (9) is trapezoidal, and the adjacent two combination plates (9) are rotatably connected, the lifting cylinder (10) is slidably arranged at the bottom of the material receiving disc (4), the top of the lifting cylinder (10) abuts against the bottom of the combination plate (9), and the lifting cylinder (10) drives the combination plate (9) to rotate by movement; The first grading part (2) is provided with a plurality of brake grooves (15), the inner wall of the brake groove (15) is rotatably provided with brake disc (16), the brake disc (16) is fixed with two first brake rods (17), the brake groove (15) is rotatably provided with second brake rod (18) for driving the first brake rod (17) to rotate; The rotation shaft of the second brake rod (18) is arranged above the rotation shaft of the brake disc (16), and the rotation shaft of the second brake rod (18) is provided with a brake guide surface (19) above the rotation shaft of the second brake rod (18).

2. The self-compacting rockfill staging and stockpiling apparatus of claim 1, wherein: The grading component includes a first grading plate (11) fixed to the top of the protective cylinder (8), the first grading plate (11) is arranged obliquely, and the first grading plate (11) is fixed with a second grading plate (12), the second grading plate (12) is perpendicular to the first grading plate (11), and the first grading plate (11) is detachably connected to the first grading part (2).

3. The self-compacting rockfill staging and stockpiling apparatus of claim 1, wherein: The first grading part (2) is arranged in an inverted "m" shape, and the two channels of the first grading part (2) have different widths, and the first grading part (2) is connected to the first grading plate (11) and is fixed with a first partition plate (13) and a second partition plate (14), the first partition plate (13) and the second partition plate (14) are both arranged obliquely and have opposite oblique directions, the end of the first partition plate (13) is close to the first grading plate (11), and the end of the second partition plate (14) is away from the first grading plate (11).

4. The self-compacting rockfill staging and stockpiling apparatus of claim 1, wherein: The side wall of the first grading part (2) is provided with a plurality of dispersion grooves (20), the side wall of the second grading part (3) abuts against the side wall of the first grading part (2), and the dispersion grooves (20) are connected to the second grading part (3).

5. The self-compacting rockfill staging and stockpiling apparatus of claim 1, wherein: The bottom of the material receiving disc (4) is provided with a conveyor belt (21), and the side wall of the conveyor belt (21) is provided with a roller (22).

6. The self-compacting rockfill staging and stockpiling apparatus of claim 1, wherein: The first grading part (2) and the second grading part (3) bottom are detachably connected with adjusting frame (23), the adjusting frame (23) bottom is provided with the gyro wheel (22), the adjusting frame (23) top is fixed with several adjusting springs (24).

7. The self-compacting rockfill staging and stockpiling apparatus of claim 6, wherein: The adjusting frame (23) includes first frame body (25) and several heightening parts (26), the adjusting spring (24) is fixed to the first frame body (25) top, the heightening part (26) is arranged in first frame body (25) bottom and is detachably connected with first frame body (25);The heightening part (26) is fixed with support column (27) opposite to the end of first frame body (25), the side wall of support column (27) is inclined, the heightening part (26) bottom and the first frame body (25) bottom are all provided with support hole (28) for passing through support column (27), the gyro wheel (22) is screw connected in support hole (28).

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