Geology beach environment detects sampler
Technical field
The present invention relates to geological environment device field, specifically geology beach environment detects sampler.
Background technique
Beach is the important geological environment resource in China, and, distribution big with area is concentrated, regional conditions are good, farming, animal husbandry and fishery
The big feature of multi-purpose development potential.Beach is not only a kind of important land resource and space resources, and itself also contains
Various mineral products, biology and other marine resources.The Tidal Flat Resources for protecting China are the most important things of geological environment work.
In recent years, with the continuous improvement of scientific level, influence of the production and operating activities of people to geological environment is more next
It is bigger.For Tidal Flat Resources, due to reclaiming land from marshes, the exploitation of a variety of mankind's items to manage such as production of hydrocarbons, brought to it
Self-purification capacity decline, seriously polluted etc. seriously affect, or even have produced permanent destruction.Therefore timely detect beach
Mud/sand understands the case where it is developed and pollutes to the development of beach and administers very crucial.
In beach destruction, each heavy metal species, inorganic salts plasma deposition destroyed caused by it is the most serious.For
The sampling of detected mud, mortar is also required to be acquired under different depth according to different situations.It generally requires according to beach
Situation is applied, step by step the deep multiple groups sample for taking different depth, it could be obtained from the deposition data on surface layer to deep layer.And having
In sampler body, the purity of the mud sample sample of corresponding depth is to guarantee the accurate premise of detection data, to the depth of ion deposition,
The observation of speed and decisive influence is determined.However existing sampler, it can not take as needed after not only drilling more
The sample of any depth of group, brings difficulty to sampling operation.And by surface layer, shallow-layer in its drill hole sampling from top to bottom operation
Ion entrainment prevents the ingredient of sample from the soil deposit situation of actual response current depth to bottom.Therefore existing sampling dress
It sets and is not able to satisfy the sampling demand that beach silt sample deposition is examined, sampling operation is difficult, and sample purity is poor.
Summary of the invention
The purpose of the present invention is to provide geology beach environments to detect sampler, it can assist prospecting personnel simple, high
The sample of multiple depth corresponding to the acquirement of effect, and the purity for sampling this greatly improved, make testing result and truth
It is corresponding, it help to obtain accurately deposition data.
The present invention to achieve the above object, is achieved through the following technical solutions:
Geology beach environment detects sampler, including cylinder, luffer boards, drill bit, sampling dish, and the cylinder is cylindrical
Hollow housing structure, window is equipped on the side wall of the cylinder along its length, and the luffer boards are the arc being adapted with window
Luffer boards, the luffer boards are set in cylinder, and the luffer boards are slidably connected along the inner wall of cylinder, along length on the side of the luffer boards
It spends direction and is equipped with cleaning shoe, the first machine box and the second machine box, installation in the first machine box are respectively equipped at the top of the cylinder
There is first motor, the top of the first machine box is equipped with the first line shaft being rotatablely connected with it, the output of the first motor
Axis is fixedly connected with the first line shaft, and first line shaft is equipped with the first driving gear, is equipped in the second machine box
Second motor, the top of second motor are equipped with the second line shaft being rotatablely connected with it, the output shaft of second motor
It is fixedly connected with the second line shaft, second line shaft is equipped with the second driving gear, and the drill bit is set under cylinder
Side, the bottom of the cylinder are equipped with cavity, are equipped with auger spindle in the cavity, the bottom end of the auger spindle is fixedly connected with drill bit, institute
Auger spindle is stated equipped with third driven gear, is rotatably connected to first rotating shaft in the cylinder, the first rotating shaft be vertically arranged and
Cavity is penetrated, the bottom end of the first rotating shaft is equipped with transmission gear, and the transmission gear is meshed with third driven gear, described
The top of first rotating shaft is equipped with the first driven gear, and first driven gear is meshed with the first driving gear, the cylinder
Inside be equipped with the guide rail casing that is rotatablely connected with it along its length, the guide rail casing be section be non-circular hollow straight tube simultaneously
Adjacent window apertures setting, and the top of the guide rail casing is equipped with the second driven gear, second driven gear and second is actively
Gear is meshed, vertical in the guide rail casing to be equipped with lead screw, and the top of the guide rail casing is equipped with third motor, and described the
The top of the output shafts of three motors and lead screw connects, and is equipped with elevator in the guide rail casing, the section of the elevator with lead
The section of rail casing is adapted, and the lead screw is threadedly coupled through elevator and with elevator, is socketed on the guide rail casing
The lifting set being slidably connected with it, the side wall of the elevator are equipped with link block, along length on the side wall of the guide rail casing
Direction is equipped with vertical strip-shaped hole, and the outer end of the link block is pierced by from strip-shaped hole and is fixed on the inner wall of lifting set, described
Lifting set and the edge of sampling dish are detachably connected, and the side of the sampling dish is equipped with the baffle of arc.
The bottom of the lifting set is equipped with connected unit, and the connected unit is fan annular base, and annular in the connected unit
Array has multiple inserting columns, and the edge of the sampling dish is equipped with the attachment base of c-type, and inner ring and the lifting set of the attachment base are mutually fitted
It answers, the attachment base is equipped with the slot with inserting column activity grafting.
The section of the guide rail casing is the triangular form hollow pipe that vertex is arch and side indent.
The bottom end of the guide rail casing is fixedly connected with pedestal, is equipped with and pushes away between the pedestal and the inner bottom surface of cylinder
Power bearing.
The top of the cylinder is equipped with arcuate socket along its side, and the top of the luffer boards is equipped with sliding block, and the sliding block runs through
It arcuate socket and is slided in arcuate socket, the outer end of the sliding block is equipped with handle.
Battery is equipped in the first machine box and/or the second machine box.
The top of the cylinder inboard wall is equipped with first support and second support, and the inner end of the first support is equipped with the first ring
Shape frame is equipped with bearing in the first annular frame, and the first annular frame is rotatably connected to the first fixing sleeve by bearing,
First fixing sleeve is socketed and is fixed in first rotating shaft, and the inner end of the second support is equipped with the second toroidal frame, and described the
Bearing is installed, second toroidal frame is rotatably connected to the second fixing sleeve by bearing, and described second is fixed in second ring frame
It puts on and is equipped with through-hole corresponding with guide rail casing, and second fixing sleeve is socketed and is fixed on guide rail casing.
The prior art is compared, the beneficial effects of the present invention are:
1, silt sediment is sampled on beach using the present apparatus, operation is very easy, main are as follows:
1) opening drill bit makes cylinder is vertical downwards to pierce beach silt (window block is closed by luffer boards at this time);
2) sampling dish is mounted on lifting to put on, opening the rotation of third motor driven lead screw makes elevator drop to needs to take
Stop after the depth of sample, open luffer boards, window is exposed, opening the second motor rotates guide rail casing axially, thus band
Dynamic sampling dish is screwed out from window, sampling of cutting the earth;
3) control third motor rises sampling dish, the sampling dish for having dug sample silt is removed, by new sampling dish
It is mounted on lifting to put on, after dropping to deeper predetermined depth, repeats sampling operation 2).
It is sampled by the present apparatus, drilling is primary, can be sampled to the silt sediment of different depth, easy to operate
Convenient, depth is easily controllable, and the personnel of reconnoitring can be helped efficiently to obtain the sample of accurate depth.
In addition, after the cylinder of the present apparatus pierces silt, then sampling dish for sampling dropped into appropriate depth, sampling dish
Lifting process completed in cylinder, do not contacted with the silt in addition to corresponding depth, ensure that taken silt sample not by
The influence of the above the composition of the sediment of institute's depth selection.
In being bored under cylinder, the top-down impurity for bringing upper layer silt on cylinder and drill bit, in sampling process,
By opening luffer boards, the cleaning shoe that luffer boards side is vertically arranged is by the one layer silt adjacent with cylinder --- and it namely may be upper
Layer silt pollution or the part silt that has mixed --- scrape off, the silt sample that sampling dish is taken apart from cylinder certain distance,
It ensure that acquired silt sample is all corresponding with the composition of the sediment of predetermined depth, mixed not comprising having by upper layer the composition of the sediment
Miscellaneous and pollution possibility.The purity for sampling this greatly improved, keep testing result corresponding with truth, help to obtain
Accurately deposition data.
Detailed description of the invention
Attached drawing 1 is vertical profile structural schematic diagram of the invention.
Attached drawing 2 is the A-A profile of attached drawing 1 of the present invention.
Attached drawing 3 is the B-B profile of attached drawing 1 of the present invention.
Attached drawing 4 is the C-C profile of attached drawing 1 of the present invention.
Attached drawing 5 is the cross-sectional structural schematic diagram that guide rail casing, elevator and lifting of the present invention cover.
Attached drawing 6 is the structural schematic diagram of shell portion of the present invention.
Attached drawing 7 is the schematic diagram of luffer boards of the present invention.
Attached drawing 8 is elevator of the present invention and lifting set schematic diagram.
Attached drawing 9 is the schematic diagram of sampling dish of the present invention.
Attached drawing 10 is the top enlarged drawing of attached drawing 1 of the present invention.
Attached drawing 11 is the middle part enlarged drawing of attached drawing 1 of the present invention.
Attached drawing 12 is the bottom enlarged drawing of attached drawing 1 of the present invention.
Label shown in attached drawing:
1, cylinder;2, luffer boards;3, drill bit;4, sampling dish;5, cleaning shoe;6, window;7, the first machine box;8, the second machine box;
9, first motor;10, the first line shaft;11, the first driving gear;12, the second motor;13, the second line shaft;14, second is main
Moving gear;15, cavity;16, auger spindle;17, third driven gear;18, first rotating shaft;19, transmission gear;20, the first driven tooth
Wheel;21, guide rail casing;22, the second driven gear;23, lead screw;24, third motor;25, elevator;26, lifting set;27, even
Connect block;28, strip-shaped hole;29, baffle;30, connected unit;31, inserting column;32, attachment base;33, slot;34, pedestal;35, arcuate socket;
36, sliding block;37, handle;38, first support;39, second support;40, first annular frame;41, the first fixing sleeve;42, the second ring
Shape frame;43, the second fixing sleeve.
Specific embodiment
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, those skilled in the art
Member can make various changes or modifications the present invention, and such equivalent forms equally fall within range defined herein.
Of the present invention is geology beach environment detection sampler, and main structure includes cylinder 1, luffer boards 2, drill bit 3, takes
Sample dish 4, the cylinder 1 are cylindrical hollow housing structure, and the cylinder 1, which can according to need, is made different length, such as
2m, 3m, 5m etc. adapt to different geological samplings.A closed channel is provided for the oscilaltion of sampling dish 4, prevents sampling dish 4
Other silts are contacted in lifting, guarantee the purity of sample.Window 6 is equipped on the side wall of the cylinder 1 along its length, it is described
Luffer boards 2 are the arc luffer boards 2 being adapted with window 6, and the luffer boards 2 are set in cylinder 1, and the luffer boards 2 are along cylinder 1
Wall is slidably connected, and luffer boards 2 do the sliding of circumference along the inner wall of cylinder 1, can control the opening and closing of window 6.In addition into
When row shoveling sampling operation, other times luffer boards 2 are all kept off at window 6, the cylinder for being closed cylinder 1 generally.The present apparatus
After cylinder 1 pierces silt, then sampling dish 4 for sampling dropped into appropriate depth, the lifting process of sampling dish 4 is in cylinder 1
Interior completion does not contact with the silt in addition to corresponding depth, ensure that taken silt sample not by the above mud of institute's depth selection
The influence of husky ingredient.In boring since cylinder 1 is lower, the top-down impurity for bringing upper layer silt on cylinder 1 and drill bit 3 makes cylinder
The silt on 1 surface of body is easy to be mixed into the ingredient of upper layer silt, causes the ingredient of sample and taken depth not corresponding, testing result
It is inaccurate.Cleaning shoe 5 is equipped on the side of the luffer boards 2 along its length, in sampling process, by opening luffer boards 2, luffer boards 2
The cleaning shoe 5 that side is vertically arranged is by the one layer silt adjacent with cylinder 1 --- and it namely may be by upper layer silt pollution or mixed
Miscellaneous part silt --- it scrapes off, the silt sample that sampling dish 4 is taken ensure that acquired apart from 1 certain distance of cylinder
Silt sample it is all corresponding with the composition of the sediment of predetermined depth, not comprising have by upper layer the composition of the sediment adulterates and pollute can
Energy.The purity for sampling this greatly improved, keep testing result corresponding with truth, help to obtain accurate precipitation number
According to.The top of the cylinder 1 is respectively equipped with the first machine box 7 and the second machine box 8, the devices such as motor are wrapped in, described first
First motor 9 is installed, the top of the first machine box 7 is equipped with the first line shaft 10 being rotatablely connected with it, described in machine box 7
The output shaft of first motor 9 is fixedly connected with the first line shaft 10, and first line shaft 10 is equipped with the first driving gear 11,
Second motor 12 is installed, the top of second motor 12 is equipped with second be rotatablely connected with it and moves in the second machine box 8
Power axis 13, the output shaft of second motor 12 are fixedly connected with the second line shaft 13, and second line shaft 13 is equipped with the
Two driving gears 14, the drill bit 3 are set to the lower section of cylinder 1, and the bottom of the cylinder 1 is equipped with cavity 15, the cavity 15
Interior to be equipped with auger spindle 16, the bottom end of the auger spindle 16 is fixedly connected with drill bit 3, and the auger spindle 16 is equipped with third driven gear 17,
The third driven gear 17 is located in cavity 15, and first rotating shaft 18, the first rotating shaft 18 are rotatably connected in the cylinder 1
It is vertically arranged and penetrates cavity 15, the bottom end of the first rotating shaft 18 is equipped with transmission gear 19, the transmission gear 19 and third
Driven gear 17 is meshed, and so that third driven gear 17 is transmitted the driving of gear 19, the top of the first rotating shaft 18 is set
There is the first driven gear 20, first driven gear 20 is meshed with the first driving gear 11, thus when first motor 9 is opened
When, it can successively drive first line shaft 10- the first driving gear 11- the first driven gear 20- first rotating shaft 18- transmission gear
The rotation of 19- third driven gear 17- auger spindle 16- drill bit 3, so that the present apparatus be enable to be drilled down into silt.In the cylinder 1
It is equipped with the guide rail casing 21 being rotatablely connected with it along its length, it is non-circular hollow straight tube that the guide rail casing 21, which is section,
And adjacent window apertures 6 are arranged, and the top of the guide rail casing 21 is equipped with the second driven gear 22, second driven gear 22 with
Second driving gear 14 is meshed, and vertical in the guide rail casing 21 to be equipped with lead screw 23, the top of the guide rail casing 21 is set
There is third motor 24, the output shaft of the third motor 24 is connect with the top of lead screw 23, is equipped with and is risen in the guide rail casing 21
Block 25 drops, the section of the section of the elevator 25 and guide rail casing 21 is adapted, the lead screw 23 through elevator 25 and with
Elevator 25 is threadedly coupled, therefore third motor 24 can control the rotation of lead screw 23, and then control the lifting of elevator 25.It is described to lead
The lifting set 26 being slidably connected with it is socketed on rail casing 21, the side wall of the elevator 25 is equipped with link block 27, described
Vertical strip-shaped hole 28 is equipped on the side wall of guide rail casing 21 along its length, the outer end of the link block 27 is worn from strip-shaped hole 28
Out and be fixed on the inner wall of lifting set 26, elevator 25 26 is connect by link block 27 with lifting set, thus go up and down cover 26 with
It is moved with elevator 25, the lifting set 26 and the edge of sampling dish 4 are detachably connected, and sampling dish 4 is mounted on lifting set 26
On, predetermined depth can be dropped to, by the rotation of guide rail casing 21, sampling dish 4 is driven to screw out window 6, realize that sand of dredging takes
Sample rises to the top of cylinder 1, removes sampling dish 4, can be marked and retain after the completion of sampling, then by clean sampling dish 4
It is mounted on lifting set 26, that is, repeats aforementioned sampling operation, continue lifting sampling.In this way, can be multiple by carrying
Clean sampling dish 4, drilling is primary, and lifting obtains the sample of multiple depth repeatedly in cylinder 1, and the setting of depth is flexibly square
Just, it is retained after sampling dish 4 samples, not cross-reference, the sample of different depth non-impurity-doped from each other is further ensured that sampling
And the purity for the link sample that keeps sample, improve the accuracy of testing result.The side of the sampling dish 4 is equipped with the baffle 29 of arc.
Horizontal rotation is facilitated to cut the earth.
In order to quickly and easily dismount sampling dish 4, the bottom of the lifting set 26 is equipped with connected unit 30, the connected unit 30
To fan annular base 34, and circular array shows multiple inserting columns 31 in the connected unit 30, and the edge of the sampling dish 4 is equipped with C
The attachment base 32 of type, the inner ring and lifting set 26 of the attachment base 32 are adapted, and the attachment base 32 is equipped with living with inserting column 31
The slot 33 of dynamic grafting.Inserting column 31 on lifting set 26 is inserted into the slot 33 of 32 bottom surface of attachment base, the very quick side of dismounting
Just, and load-bearing is uniform, convenient for drive when connector sleeve rotation to sampling dish 4.
In order to improve axial transmission torsion when guide rail casing 21 rotates to elevator 25 and lifting set 26, the guide rail sleeve
The section of pipe 21 is the triangular form hollow pipe that vertex is arch and side indent.As shown in the picture, it can effectively drive when rotated
26 rotation of elevator 25 and lifting set, prevents from slipping.And whole fillet design, uniform force reduce component wear situation.
In order to improve the stability of guide rail casing 21, the bottom end of the guide rail casing 21 is fixedly connected with pedestal 34, described
Thrust bearing is installed between pedestal 34 and the inner bottom surface of cylinder 1.The bottom end of guide rail casing 21 is rotatably fixed on cylinder
On bottom surface inside body 1.Keep the rotation of guide rail casing 21 more stable.
In order to facilitate the folding of control window 6, the top of the cylinder 1 is equipped with arcuate socket 35, the luffer boards 2 along its side
Top be equipped with sliding block 36, through arcuate socket 35 and sliding in arcuate socket 35, the outer end of the sliding block 36 is set the sliding block 36
There is handle 37.It is sliding of the controllable luffer boards 2 in 1 inner wall of cylinder that left and right, which pulls handle 37, controls the opening and closing of window 6.
Battery is equipped in the first machine box 7 and/or the second machine box 8.For first motor 9, the second motor 12 and third
The operation of motor 24 provides electric energy.
In order to preferably fix guide rail casing 21 and first rotating shaft 18, the top of 1 inner wall of cylinder is equipped with first support
38 and second support 39, the inner end of the first support 38 is equipped with first annular frame 40, is equipped in the first annular frame 40
Bearing, and the first annular frame 40 is rotatably connected to the first fixing sleeve 41 by bearing, the socket of the first fixing sleeve 41 is simultaneously
It is fixed in first rotating shaft 18, to first rotating shaft 18 is rotatably fixed on cylinder 1 at the top of first rotating shaft 18, institute
The inner end for stating second support 39 is equipped with the second toroidal frame 42, and bearing, second annular are equipped in second toroidal frame 42
Frame 42 is rotatably connected to the second fixing sleeve 43 by bearing, and second fixing sleeve 43 is equipped with corresponding with guide rail casing 21
Through-hole, and second fixing sleeve 43 is socketed and is fixed on guide rail casing 21.To at the top of guide rail casing 21 by guide rail
Casing 21 is rotatably fixed on cylinder 1,
Embodiment: it is of the present invention be geology beach environment detection sampler, main structure include cylinder 1, luffer boards 2,
Drill bit 3, sampling dish 4, the cylinder 1 are cylindrical hollow housing structure, and the internal height of the cylinder 1 is 1.5m, described
Window 6 is equipped on the side wall of cylinder 1 along its length, the height of the window 6 is 1.2m, and the window 6 makes the side wall of cylinder 1
The notch that a radian is about 165 degree is formed, the luffer boards 2 are the arc luffer boards 2 being adapted with window 6, and the luffer boards 2 are arranged
In in cylinder 1, and the luffer boards 2 do sliding counterclockwise along the inner wall of cylinder 1, and the bottom surface inside the cylinder 1 is equipped with a circle
The sliding slot of annular, the bottom end of the luffer boards 2 are equipped with the sliding shoe being slidably connected with sliding slot.The top of the cylinder 1 is along its side
Equipped with arcuate socket 35, the arcuate socket 35 is located at side opposite with window 6 on cylinder 1, and the arcuate socket 35 is located at window 6
Top, the side at the top of the luffer boards 2 are equipped with sliding block 36, and the sliding block 36 is through arcuate socket 35 and sliding in arcuate socket 35
Dynamic, the outer end of the sliding block 36 is equipped with handle 37.Side on the luffer boards 2 far from sliding block 36 is equipped with cleaning shoe 5, described to scrape
The top side of mud plate 5 is bent counterclockwise, conveniently scrapes mud.The top of the cylinder 1 is respectively equipped with the first machine box 7 and the second machine
Box 8, first motor 9 is equipped in the first machine box 7, and the top of the first machine box 7 is equipped be rotatablely connected with it first
Line shaft 10, the output shaft of the first motor 9 are fixedly connected with the first line shaft 10, and first line shaft 10 is equipped with the
One driving gear 11 is equipped with the second motor 12 in the second machine box 8, and the top of second motor 12 is equipped with to be rotated with it
Second line shaft 13 of connection, the output shaft of second motor 12 are fixedly connected with the second line shaft 13, second power
Axis 13 is equipped with the second driving gear 14, and the drill bit 3 is set to the lower section of cylinder 1, and the drill bit 3 is equipped with fried dough twist slot, institute
The bottom for stating cylinder 1 is equipped with cavity 15, is equipped with auger spindle 16 in the cavity 15, the bottom end of the auger spindle 16 is worn downwards from cavity 15
It is fixedly connected out and with drill bit 3, the auger spindle 16 is equipped with third driven gear 17, and the third driven gear 17 is located at cavity
In 15, first rotating shaft 18 is rotatably connected in the cylinder 1, the first rotating shaft 18 is vertically arranged and penetrates cavity 15, described
The bottom end of first rotating shaft 18 is equipped with transmission gear 19, and the transmission gear 19 is meshed with third driven gear 17, and described first
The top of shaft 18 is equipped with the first driven gear 20, and first driven gear 20 is meshed with the first driving gear 11, described
The guide rail casing 21 being rotatablely connected with it is equipped in cylinder 1 along its length, it is arch that the section of the guide rail casing 21, which is vertex,
The triangular form hollow pipe of shape and side indent.It is centrally located at 21 adjacent window apertures 6 of guide rail casing, the guide rail casing 21
Bottom end is fixedly connected with pedestal 34, is equipped with thrust bearing between the pedestal 34 and the inner bottom surface of cylinder 1.And the guide rail
The top of casing 21 is equipped with the second driven gear 22, and second driven gear 22 is meshed with the second driving gear 14, described
Vertical in guide rail casing 21 to be equipped with lead screw 23, the top of the guide rail casing 21 is equipped with third motor 24, the third motor
24 output shaft is connect with the top of lead screw 23, is equipped with elevator 25, the section of the elevator 25 in the guide rail casing 21
It is adapted with the section of guide rail casing 21, the lead screw 23 is through elevator 25 and is threadedly coupled with elevator 25, the guide rail
The lifting set 26 being slidably connected with it is socketed on casing 21, the side wall of the elevator 25 is equipped with link block 27, described to lead
Vertical strip-shaped hole 28 is equipped on the side wall of rail casing 21 along its length, the outer end of the link block 27 is pierced by from strip-shaped hole 28
And be fixed on the inner wall of lifting set 26, the lifting set 26 and the edge of sampling dish 4 are detachably connected, the lifting set 26
Bottom is equipped with connected unit 30, and the connected unit 30 is fan annular base 34, and circular array shows multiple insert in the connected unit 30
Column 31, the edge of the sampling dish 4 are equipped with the attachment base 32 of c-type, and the inner ring and lifting set 26 of the attachment base 32 are adapted,
The attachment base 32 is equipped with the slot 33 with 31 activity grafting of inserting column.The side of the sampling dish 4 is equipped with the baffle 29 of arc.
The top of 1 inner wall of cylinder is equipped with first support 38 and second support 39, and the inner end of the first support 38 is equipped with the first ring
Shape frame 40 is equipped with bearing in the first annular frame 40, and the first annular frame 40 is rotatably connected to first by bearing
Fixing sleeve 41, first fixing sleeve 41, which is socketed, to be simultaneously fixed in first rotating shaft 18, and the inner end of the second support 39 is equipped with the
Second ring frame 42 is equipped with bearing in second toroidal frame 42, and second toroidal frame 42 is rotatably connected to by bearing
Two fixing sleeves 43, second fixing sleeve 43 are equipped with through-hole corresponding with guide rail casing 21, and second fixing sleeve 43
It is socketed and is fixed on guide rail casing 21.