CN216012398U

CN216012398U - Geotechnical engineering reconnaissance ground water level measuring apparatu

Info

Publication number: CN216012398U
Application number: CN202122654222.3U
Authority: CN
Inventors: 卢正广
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2022-03-11
Anticipated expiration: 2031-11-01

Abstract

The application discloses a geotechnical engineering investigation underground water level measuring instrument which comprises a box body, a cleaning mechanism and a measuring mechanism; clean mechanism includes the rotating electrical machines, rotating electrical machines fixed connection is on the box diapire, the first threaded rod of rotating electrical machines output fixedly connected with, the first threaded rod other end rotates and connects on the box lateral wall, two movable plates, two have been cup jointed to the screw thread on the first threaded rod the equal fixedly connected with telescopic link in one side that the movable plate is close. This application drives first threaded rod through rotating electrical machines work and rotates, and first threaded rod rotates and drives two movable plate motions, and the slider bottom the movable plate motion of sliding on fixed spout drives two sponges and wipes the dipperstick contact with the rolling, and the dipperstick promotes two sponge side directions both sides, and the telescopic link shrink, first spring compression, first spring force promote the sponge wipe with the contact of dipperstick both sides, are convenient for clean the dipperstick.

Description

Geotechnical engineering reconnaissance ground water level measuring apparatu

Technical Field

The application relates to the field of geotechnical engineering, in particular to a geotechnical engineering investigation groundwater level measuring instrument.

Background

Geotechnical engineering is a new technical system established in civil engineering practice, wherein the geotechnical engineering aims to solve the problems of rock and soil engineering, including foundation and foundation, slope, underground engineering and the like, and as research objects thereof, various engineering on the ground, underground and in water are generally called civil engineering, and parts related to rock, soil, underground and water in the civil engineering are called geotechnical engineering.

At the in-process that carries out the reconnaissance to geotechnical engineering, need measure ground water level, current ground water level measuring apparatu is stained with steam on the dipperstick in the use, directly carries out the easy life that influences of rolling. Therefore, a geotechnical engineering investigation groundwater level measuring instrument is provided for solving the problems.

Disclosure of Invention

The geotechnical engineering reconnaissance ground water level measuring apparatu is provided in this embodiment for solving among the prior art the problem of being not convenient for get rid of the steam on the dipperstick.

According to one aspect of the application, a geotechnical engineering investigation underground water level measuring instrument is provided, which comprises a box body, a cleaning mechanism and a measuring mechanism;

clean mechanism includes the rotating electrical machines, rotating electrical machines fixed connection is on the box diapire, the first threaded rod of rotating electrical machines output fixedly connected with, the first threaded rod other end rotates and connects on the box lateral wall, two movable plates have been cup jointed to the screw thread on the first threaded rod, two the equal fixedly connected with telescopic link in one side that the movable plate is close, two the equal fixed connection of the telescopic link other end is wiped at the sponge, two first spring, two have all been cup jointed on the telescopic link first spring both ends difference fixed connection is wiped at movable plate and sponge.

Further, the threads at the two ends of the first threaded rod are arranged oppositely.

Further, the bottom of the moving plate is fixedly connected with sliding blocks, the sliding blocks are connected to fixed sliding grooves in a sliding mode, and the fixed sliding grooves are fixedly arranged at the bottom of the box body.

Further, measuring mechanism includes the axis of rotation, the axis of rotation right-hand member rotates on connecting box right side wall, the axis of rotation left end runs through the box and extends to the outside, axis of rotation left end fixed connection is on the rolling disc, the fixed swivelling roller that has cup jointed in the axis of rotation, fixedly connected with dipperstick on the swivelling roller, the dipperstick winding is on the swivelling roller, the dipperstick other end runs through the box diapire and extends to the outside, dipperstick other end fixed connection is on the probe.

Further, a fixed cavity is fixedly arranged in the rotating disc, a second spring is fixedly connected in the fixed cavity, the other end of the second spring is fixedly connected to the sleeving block, the sleeving block is fixedly sleeved on the inserting rod, the second spring is sleeved on the inserting rod, two ends of the inserting rod respectively penetrate through two ends of the fixed cavity, the left end of the inserting rod is fixedly connected to the fixed block, and the right end of the inserting rod is inserted into the inserting groove.

Furthermore, the inserting grooves are fixedly arranged on the side wall of the box body, the number of the inserting grooves is a plurality, and the inserting grooves are circularly distributed on the side wall of the box body.

Further, the equal dead lever in bottom half both ends is connected with the supporting box, rotate respectively on the two walls about in the supporting box and be connected with second threaded rod both ends, the screw has cup jointed the removal sleeve on the second threaded rod, the removal sleeve both ends run through supporting box both sides wall respectively, the equal fixedly connected with backup pad in removal sleeve both ends.

Furthermore, two movable wheels are fixedly connected to the bottom of the supporting box.

Furthermore, the two side walls of the supporting box are fixedly provided with slots at the position of the movable sleeve.

Furthermore, a secondary bevel gear is fixedly sleeved on the second threaded rod, a main bevel gear is meshed with the secondary bevel gear, the main bevel gear is rotatably connected onto the connecting plate, the other end of the connecting plate is fixedly connected onto the right side wall of the supporting box, the second threaded rod penetrates through the connecting plate, a rotating rod is fixedly connected onto the main bevel gear, and the other end of the rotating rod penetrates through the side wall of the supporting box and extends to the outside.

Through the above-mentioned embodiment of this application, adopted clean mechanism, solved the problem of the steam on the dipperstick of being not convenient for get rid of, improved water level measuring apparatu's life.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic overall perspective view of an embodiment of the present application;

FIG. 2 is a schematic diagram of the overall internal structure of an embodiment of the present application;

fig. 3 is a schematic diagram of a partial enlarged structure at a in fig. 2 according to an embodiment of the present application.

In the figure: 1. a box body; 2. a rotating roller; 3. measuring a scale; 4. a rotating shaft; 5. sponge wiping; 6. a first spring; 7. a telescopic rod; 8. moving the plate; 9. a slider; 10. fixing the chute; 11. a probe; 12. a first threaded rod; 13. a rotating electric machine; 14. a support plate; 15. a moving wheel; 16. grooving; 17. inserting grooves; 18. rotating the disc; 19. sleeving and connecting blocks; 20. a second spring; 21. a fixed block; 22. a fixed cavity; 23. a plug rod; 24. rotating the rod; 25. a main bevel gear; 26. a second threaded rod; 27. a connecting plate; 28. a slave bevel gear; 29. a support box; 30. the sleeve is moved.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

The cleaning mechanism in the present embodiment can be applied to various ground water level measuring instruments, for example, the following ground water level measuring device is provided in the present embodiment, and the cleaning mechanism in the present embodiment can be used to perform cleaning of the following ground water level measuring device.

The measuring device for the underground water level comprises a touch probe, a probe rod, a pay-off rack and a water level measuring instrument; the contact probe is arranged in a sand or gravel layer d below the mud layer b, the contact probe is constructed into a structure with an opening at the upper end, four water inlet holes which are communicated from inside to outside and are uniformly distributed along the circumferential direction are formed in the middle of the contact probe, so that underground water enters the contact probe and the probe rod through the water inlet holes, and the water level a in the probe rod is consistent with the water level a outside the drill hole c; the probe rod is detachably arranged at the upper end of the touch probe and is constructed into a cylindrical structure which is communicated up and down; the pay-off rack is detachably arranged at the upper end of the probe rod and is provided with a pay-off wheel; the water level measuring instrument comprises a water level measuring instrument and a water level probe electrically connected with the water level measuring instrument through a lead, the water level probe is placed into the feeler lever through the paying-off wheel, and the underground water level a can be known by measuring the water level a in the feeler lever.

An internal thread is formed at the upper end of the inner wall of the touch probe, and an external thread which is screwed with the internal thread of the touch probe is formed at the lower end of the periphery of the probe rod, so that the touch probe is convenient to disassemble and assemble; the filter cartridges are respectively arranged at the water inlet holes, so that the phenomenon that the underground water level a is measured inaccurately due to the blockage of the water inlet holes when slurry or gravel enters the water inlet holes of the touch probe during drilling is avoided; the water inlet hole is provided with an internal thread; the filter cartridge comprises a cartridge body and a filter screen, wherein external threads matched with the internal threads of the water inlet hole are formed on the periphery of the cartridge body, a filter cavity extending in the same direction as the water inlet hole is formed in the cartridge body, and the filter screen is arranged on the outer side of the filter cavity, so that underground water in a sand or gravel soil layer d enters the probe rod through the water inlet hole, and gravel is prevented from entering the touch probe; the periphery of the cylinder body is also provided with the twisting block positioned on the inner side of the cylinder body, so that the filter cartridge is conveniently screwed into the water inlet hole from the inner side of the touch probe, and the filter screen is not easy to damage, convenient to screw and convenient to replace when the touch probe drills; the pay-off stand also comprises a pay-off seat, the pay-off seat is constructed into a cylindrical structure which is communicated up and down, two sliding grooves which are communicated inside and outside and extend along the circumferential direction of the pay-off seat are formed in the pay-off seat, and the two sliding grooves are symmetrically arranged; the pay-off wheel comprises a wheel body and two rotating rods, the two rotating rods and the wheel body are coaxially arranged and symmetrically arranged on two sides of the wheel body, and the rotating rods are correspondingly clamped in the sliding grooves one by one, so that the pay-off wheel can rotate and pay off conveniently; an external thread is formed at the upper end of the probe rod, and an internal thread matched with the external thread at the upper end of the probe rod in a screwed connection mode is formed on the inner wall of the pay-off seat, so that the probe rod is convenient to disassemble and assemble; the wheel body is constructed into an integral structure formed by butting small ends of two truncated cones, so that paying-off is facilitated, and if a paying-off rack is not arranged, a lead is directly arranged along a lead below the feeler lever, and the lead is easily scratched; the matching end of each rotating rod body and the sliding groove is respectively provided with a limiting block for preventing the rotating rod body from being separated from the sliding groove.

Of course, the present embodiment may also be used to clean other structures of groundwater level measuring instruments. The cleaning mechanism according to the embodiment of the present application will be described below without further details.

Referring to fig. 1-3, a geotechnical engineering investigation groundwater level measuring instrument comprises a box body 1, a cleaning mechanism and a measuring mechanism;

clean mechanism includes rotating electrical machines 13, rotating electrical machines 13 fixed connection is on 1 diapire of box, rotating electrical machines 13 output end fixedly connected with first threaded rod 12, the other end of first threaded rod 12 rotates and connects on 1 lateral wall of box, two movable plates 8, two have been cup jointed to the screw thread on the first threaded rod 12 the equal fixedly connected with telescopic link 7 in the close one side of movable plate 8, two the equal fixed connection of the telescopic link 7 other end is on sponge 5, two first spring 6 has all been cup jointed on telescopic link 7, two fixed connection is respectively on movable plate 8 and sponge 5 at 6 both ends of first spring, wipes 5 intervals through changing two sponges for the sponge 5 keeps in contact with the dipperstick 3 of rolling, cleans the steam on the dipperstick 3.

The threads at the two ends of the first threaded rod 12 are arranged oppositely, so that the two moving plates 8 can move towards opposite directions simultaneously; the bottom of each moving plate 8 is fixedly connected with a sliding block 9, each sliding block 9 is connected to a fixed sliding chute 10 in a sliding mode, and each fixed sliding chute 10 is fixedly arranged at the bottom of the box body 1, so that the moving direction of each moving plate 8 can be conveniently fixed; the measuring mechanism comprises a rotating shaft 4, the right end of the rotating shaft 4 is rotatably connected to the right side wall of the box body 1, the left end of the rotating shaft 4 penetrates through the box body 1 and extends to the outside, the left end of the rotating shaft 4 is fixedly connected to a rotating disc 18, a rotating roller 2 is fixedly sleeved on the rotating shaft 4, a measuring scale 3 is fixedly connected to the rotating roller 2, the measuring scale 3 is wound on the rotating roller 2, the other end of the measuring scale 3 penetrates through the bottom wall of the box body 1 and extends to the outside, and the other end of the measuring scale 3 is fixedly connected to the probe 11, so that the water level can be conveniently measured; a fixed cavity 22 is fixedly arranged in the rotating disc 18, a second spring 20 is fixedly connected in the fixed cavity 22, the other end of the second spring 20 is fixedly connected to a sleeving block 19, the sleeving block 19 is fixedly sleeved on an inserting rod 23, the second spring 20 is sleeved on the inserting rod 23, two ends of the inserting rod 23 penetrate through two ends of the fixed cavity 22 respectively, the left end of the inserting rod 23 is fixedly connected to the fixed block 21, and the right end of the inserting rod 23 is inserted in the inserting groove 17, so that the position of the rotating disc 18 can be fixed conveniently, and the measuring scale 3 is fixed; the inserting grooves 17 are fixedly arranged on the side wall of the box body 1, the number of the inserting grooves 17 is a plurality, and the inserting grooves 17 are circularly distributed on the side wall of the box body 1, so that the inserting rods 23 can be conveniently inserted at different positions; the two ends of the bottom of the box body 1 are fixedly connected with supporting boxes 29 respectively, the upper wall and the lower wall in each supporting box 29 are respectively and rotatably connected with two ends of a second threaded rod 26, a movable sleeve 30 is sleeved on the upper thread of each second threaded rod 26, two ends of each movable sleeve 30 respectively penetrate through two side walls of each supporting box 29, and two ends of each movable sleeve 30 are respectively and fixedly connected with supporting plates 14, so that the positions of the supporting plates 14 can be adjusted conveniently to fix the measuring instrument; the bottom of the supporting box 29 is fixedly connected with two moving wheels 15, so that the measuring instrument can be moved conveniently; the two side walls of the supporting box 29 are fixedly provided with slots 16 at the position of the movable sleeve 30, so that the moving direction of the movable sleeve 30 can be conveniently fixed; fixed cover has been connected from bevel gear 28 on the second threaded rod 26, it has main bevel gear 25 to mesh on bevel gear 28, main bevel gear 25 rotates to be connected on connecting plate 27, connecting plate 27 other end fixed connection is on supporting box 29 right side wall, it has second threaded rod 26 to run through on the connecting plate 27, fixedly connected with dwang 24 on the main bevel gear 25, the dwang 24 other end runs through supporting box 29 lateral wall and extends to the outside, and the dwang 24 of being convenient for rotates and drives the threaded rod rotation.

When the utility model is used, the electrical components appearing in the application are externally connected with a power supply and a control switch when in use, firstly, the measuring instrument is moved to a measuring position through the moving wheel 15, the rotating rod 24 rotates to drive the main bevel gear 25 to rotate, the main bevel gear 25 rotates to drive the auxiliary bevel gear 28 to rotate, the bevel gear 28 rotates to drive the second threaded rod 26 to rotate, the second threaded rod 26 rotates to drive the moving sleeve 30 to move, the moving sleeve 30 moves to drive the supporting plates 14 at two sides to move, the supporting plates 14 move to be in contact with the ground, thereby fixing the measuring instrument, when in measurement, the fixed block 21 is pulled outwards to drive the inserting rod 23 to move outwards, the sleeve block 19 moves in the fixed cavity 22, the second spring 20 compresses, the inserting rod 23 is separated from the inserting groove 17, the rotating disc 18 rotates to drive the rotating roller 2 on the rotating shaft 4 to rotate, the rotating roller 2 rotates to drive the probe 11 to drive the measuring scale 3 to move downwards, measure ground water level, it drives 3 rolling of dipperstick to reverse rolling disc 18 after the measurement is accomplished, rotating electrical machines 13 work drives first threaded rod 12 and rotates, first threaded rod 12 rotates and drives two 8 motions of movable plate, the slider 9 of 8 bottoms of movable plate slides on fixed spout 10, be convenient for fix the direction of motion of movable plate 8, 8 motions of movable plate drive two sponges wipe 5 and the dipperstick 3 contact of rolling, dipperstick 3 promotes two sponge side direction both sides, telescopic link 7 contracts, first spring 6 compresses, 5 and 3 both sides contact of dipperstick are wiped to 6 elasticity promotion sponges of first spring, be convenient for clean dipperstick 3, accomplish the back with 3 rolling of dipperstick, loosen fixed block 21, second spring 20 elasticity drives inserted bar 23 and pegs graft with the inserting groove 17 that corresponds, thereby fix dipperstick 3.

The application has the advantages that:

1. the first threaded rod is driven to rotate through the work of the rotating motor, the first threaded rod drives the two moving plates to move, the sliding blocks at the bottoms of the moving plates slide on the fixed sliding grooves to drive the two sponge wipers to be in contact with the coiled measuring scale, the measuring scale pushes the two sponge wipers to the two sides, the telescopic rods contract, the first springs compress, the sponge wipers are pushed by the elastic force of the first springs to be in contact with the two sides of the measuring scale, and the measuring scale is convenient to wipe;

2. the fixing block is pulled outwards, the inserting rod is driven to move outwards, the sleeving block moves in the fixing cavity, the second spring is compressed, the inserting rod is separated from the inserting groove, the rotating disc is rotated, the rotating roller on the rotating shaft is driven to rotate, the rotating roller rotates to enable the probe to drive the measuring scale to move downwards, the underground water level is measured, the rotating disc is reversed to drive the measuring scale to roll after the measuring is completed, the fixing block is loosened after the measuring scale is rolled, the inserting rod is driven to be inserted into the corresponding inserting groove through the second spring elasticity, and therefore the measuring scale is fixed;

3. this application is through removing the wheel and remove the measuring apparatu to measuring department, and the dwang rotates and drives main bevel gear and rotate, and main bevel gear rotates and drives from bevel gear and rotate, rotates from bevel gear and drives the second threaded rod and rotate, and the second threaded rod rotates and drives the movable sleeve motion, and the movable sleeve motion drives the backup pad motion of both sides, and the backup pad motion is to contacting with ground to fix the measuring apparatu.

The rotating electrical machine 13 is a three-phase asynchronous motor with a model number of YX3-100L2-4 and its associated power supply and circuitry.

It is well within the skill of those in the art to implement, without undue experimentation, the present application is not directed to software and process improvements, as they relate to circuits and electronic components and modules.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a geotechnical engineering reconnaissance ground water level measuring apparatu which characterized in that: comprises a box body (1), a cleaning mechanism and a measuring mechanism;

clean mechanism includes rotating electrical machines (13), rotating electrical machines (13) fixed connection is on box (1) diapire, rotating electrical machines (13) output end fixedly connected with first threaded rod (12), first threaded rod (12) other end rotates and connects on box (1) lateral wall, two movable plates (8), two have been cup jointed to first threaded rod (12) upper thread the equal fixedly connected with telescopic link (7) in one side that movable plate (8) are close, two the equal fixed connection of telescopic link (7) other end is wiped on (5), two first spring (6), two have all been cup jointed on telescopic link (7) first spring (6) both ends difference fixed connection is wiped on (5) at movable plate (8) and sponge.

2. The geotechnical engineering investigation groundwater level measuring instrument of claim 1, wherein: the threads at the two ends of the first threaded rod (12) are arranged oppositely.

3. The geotechnical engineering investigation groundwater level measuring instrument of claim 1, wherein: the bottom of the moving plate (8) is fixedly connected with a sliding block (9), the sliding block (9) is connected to a fixed sliding groove (10) in a sliding mode, and the fixed sliding groove (10) is fixedly arranged at the bottom of the box body (1).

4. The geotechnical engineering investigation groundwater level measuring instrument of claim 1, wherein: measuring mechanism includes axis of rotation (4), axis of rotation (4) right-hand member rotates on connecting box (1) right side wall, axis of rotation (4) left end runs through box (1) and extends to the outside, axis of rotation (4) left end fixed connection is on rolling disc (18), fixed cover has connect live-rollers (2) on axis of rotation (4), fixedly connected with dipperstick (3) on live-rollers (2), dipperstick (3) winding is on live-rollers (2), dipperstick (3) other end runs through box (1) diapire and extends to the outside, dipperstick (3) other end fixed connection is on probe (11).

5. The geotechnical engineering investigation groundwater level measuring instrument of claim 4, wherein: the fixed cavity (22) is arranged in the rotating disc (18) in a fixed mode, a second spring (20) is fixedly connected in the fixed cavity (22), the other end of the second spring (20) is fixedly connected to the sleeving block (19), the sleeving block (19) is fixedly sleeved on the insertion rod (23), the second spring (20) is sleeved on the insertion rod (23), two ends of the insertion rod (23) penetrate through two ends of the fixed cavity (22) respectively, the left end of the insertion rod (23) is fixedly connected to the fixed block (21), and the right end of the insertion rod (23) is inserted into the insertion groove (17).

6. The geotechnical engineering investigation groundwater level measuring instrument of claim 5, wherein: the plug-in connection groove (17) is fixedly arranged on the side wall of the box body (1), the number of the plug-in connection grooves (17) is a plurality, and the plug-in connection grooves (17) are circularly distributed on the side wall of the box body (1).

7. The geotechnical engineering investigation groundwater level measuring instrument of claim 1, wherein: the improved box is characterized in that supporting boxes (29) are connected to the two ends of the bottom of the box body (1) through fixing rods, second threaded rods (26) are connected to the upper wall and the lower wall of each supporting box (29) in the supporting boxes in a rotating mode respectively, moving sleeves (30) are sleeved on the second threaded rods (26) in a threaded mode, the two ends of each moving sleeve (30) penetrate through the two side walls of each supporting box (29) respectively, and supporting plates (14) are fixedly connected to the two ends of each moving sleeve (30).

8. The geotechnical engineering investigation groundwater level measuring instrument of claim 7, wherein: the bottom of the supporting box (29) is fixedly connected with two moving wheels (15).

9. The geotechnical engineering investigation groundwater level measuring instrument of claim 7, wherein: two side walls of the supporting box (29) are fixedly provided with slots (16) at the position of the movable sleeve (30).

10. The geotechnical engineering investigation groundwater level measuring instrument of claim 7, wherein: fixed cover on second threaded rod (26) has been connected from bevel gear (28), meshing has main bevel gear (25) on from bevel gear (28), main bevel gear (25) rotate to be connected on connecting plate (27), connecting plate (27) other end fixed connection is on supporting box (29) right side wall, it has second threaded rod (26) to run through on connecting plate (27), fixedly connected with dwang (24) on main bevel gear (25), dwang (24) other end runs through supporting box (29) lateral wall and extends to the outside.