CN209320985U - A kind of building glass transport device - Google Patents

Abstract

The utility model relates to Architectural Equipment fields, in particular to a kind of building glass transport device, including main car body, secondary car body, it is oriented to top plate and several locating pieces, one end of secondary car body is fixedly connected with main car body, 155 degree of angle setting is constituted between the loading end of secondary car body and the loading end of main car body, the top of secondary car body is equipped with inclined direction loading plate parallel with it, all locating pieces are installed on the loading end of secondary car body, and all locating pieces are successively arranged along the inclined direction arranged at equal intervals of secondary car body, the top of secondary car body is equipped with clamp system, clamp system and all locating pieces are sequentially connected, the top of secondary car body movable can be arranged in by elevating mechanism for guiding top plate, the top of all locating pieces is connect with guiding roof movement, and it is oriented to height of the top plate to adjust all locating pieces, the utility model It is simple to load and unload glass process, it is easy to operate, under the premise of conveying multiple pieces of glass at the same time, also ensure the safety of glass.

Description

A kind of building glass transport device

Technical field

The present invention relates to Architectural Equipment field, in particular to a kind of building glass transport device and its application method.

Background technique

Glass is fragile article, and collision is easy to happen broken during transportation, and therefore, it is necessary to be protected well to it Shield.Glass appears in most building, so some construction places may require that installation glass, then these glass After Automobile Transportation to building yard, it is also necessary to will be multiple specific on these glass in batches short-distance transport to construction site The short-distance transport of construction point, glass generallys use the mode of wooden-box package, this can consume a large amount of timber, and while packing is disappeared The time of consumption is relatively more, so put into time with it is more cost-effective than less for short-distance transport.

According to the above problem, through retrieving, China Patent No.: a kind of transport frame for glass sheets of CN201720195765, including with In the placement bracket and the supporting support for being used to support placement bracket of placing glass；Compared with prior art, practical new using this It when the transport frame for glass sheets that type provides, places on bracket as long as glass is placed in, and according to specific needs, is tied glass with rope It is tied on transport frame for glass sheets, it will be able to guarantee that transportational process glass will not shift, and the structure of supporting support is simply firm, It is not easy deformation of falling apart, good supporting role can be played to bracket is placed, guarantee the intensity of packaging, in addition, the second strut Length is greater than the length of the first strut, and intussusception is placed when glass transportation being enable to make somebody a mere figurehead frame, reduces occupied space and recycling transport Expense；The transport frame for glass sheets can be suitable for storage, packaging and the transport of glass, be conducive to repeatedly recycle, and required Auxiliary packaging material it is few, packaging operation is simple, can be effectively reduced packing cost.

The shortcomings that above scheme is: the main fixed form of its transporting glass is to be bundled by rope, in this way Mode need the bundling technique of profession, it is relatively high to the operation level requirement of operator, and in the excessive situation of amount of glass, It is cumbersome to tie up mode, although cost reduces, but time-consuming problems of too still exists.

Summary of the invention

In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of building glass transport device and its user Method.

To solve the above problems, the present invention the following technical schemes are provided:

A kind of building glass transport device, including main car body, secondary car body, guiding top plate and several structures are identical fixed Position part, one end of secondary car body is fixedly connected with main car body, and its other end suspends upward, the loading end and main car body of secondary car body Loading end between constitute 155 degree of angle setting, the top of secondary car body is equipped with inclined direction loading plate parallel with it, all Locating piece is installed on the loading end of secondary car body, and all locating pieces are successively along the inclined direction arranged at equal intervals of secondary car body Setting, the top of secondary car body are equipped with clamp system, and clamp system and all locating pieces are sequentially connected, and all fixed to adjust Position part can adapt to the positioning purpose of different-thickness glass, and guiding top plate movable can be arranged in secondary car body by elevating mechanism Top, the top of all locating pieces connect with guiding roof movement, and height of the guiding top plate to adjust all locating pieces Degree.

Further, the secondary car body is string configuration, and locating piece includes symmetrically setting along the broadside perpendicular bisector of secondary car body Two components set, loading plate are located between two components, and each component includes symmetrical along the longitudinal direction gap of secondary car body The first blend stop and second gear item, between the first blend stop and second gear item constitute with for glass be able to by storage channel, Second gear item is arranged close to main car body always, and the loading end activity of the first blend stop and secondary car body cooperates, second gear item and secondary car body Loading end be fixedly connected, the first blend stop and second gear item are inclined to set, and the inclined direction of the two is each perpendicular to pair The bottom end of the loading end of car body, clamp system and all first blend stops on front side of secondary car body is sequentially connected.

Further, first blend stop and second gear item are hollow structure, and the top of the two is that opening is set It sets, vertical movable the first extension item and second that is inserted with is able in the top of the first blend stop and second gear item and extends item, All first extension items are flexibly connected with guiding top plate bottom, and activity direction is parallel with the secondary inclined direction of car body, All second extension items are fixedly connected with guiding top plate.

Further, it is convex to be respectively equipped with intilted first clamping for the bottom end of first blend stop and second gear item Item, and the first clamping raised line structure of the two, at an angle close to 25 degree of V-type material folding mouth, first, which extends item and second, extends The top of item is respectively equipped with an intilted second clamping raised line, and the second clamping raised line structure of the two connects at an angle It is bordering on 25 degree of V-type material folding mouth.

Further, the medial surface of the clamping end of all first clamping raised lines and all second clamping raised lines is set respectively There are an elastic bumps.

Further, the medial surface corresponding to the elastic bumps of all first extension items is covered each by leads equipped with one To piece, guide pin is made of stainless steel material.

Further, the clamp system includes trapezoidal screw and rotating disk, and trapezoidal screw axis connects at the top of secondary car body, The axial direction of trapezoidal screw is parallel with the secondary inclined direction of car body, and rotating disk is fixed on the one end of trapezoidal screw far from main car body, The bottom end of the first clamping raised line corresponding to all first blend stops on front side of secondary car body is respectively equipped with a nut slider, all spiral shells Female sliding block is set on trapezoidal screw.

Further, the extending direction of the guiding top plate is parallel with the secondary extending direction of car body, installs on main car body It has backing plate, is oriented to top plate towards one end of main car body perpendicular to the leading flank of backer's plate, and the leading flank also with backer's plate Vertical activity cooperation, elevating mechanism includes rack-plate, lifting motor and mounting plate, and mounting plate is connect with backer's plate, rack-plate by Up to it is lower through mounting plate and with connect at the center of guiding top plate, the collar bush of lifting motor is equipped with can be with rack-plate The gear that tooth socket is meshed.

Further, the rear end of the main car body, which is equipped with, pushes handle, and the front end two sides of main car body are respectively equipped with one the One idler wheel, the front end two sides of secondary car body are respectively equipped with second idler wheel.

The utility model has the advantages that a kind of building glass transport device of the invention and its application method, conveying people pass through folder in advance Tight mechanism to reach far from respective second gear entry, meets all the first blend stop drivings with this corresponding to the first blend stop The elastic bumps for extending a position with first make it that can not contact the glass when glass is put into storage channel；Then transport people By in one storage channel being made of the first blend stop and second gear item of the inclined merging of glass, the lateral attitude of glass is member Perpendicular to the load plane of loading plate, and one end of glass passes through the storage channel and can reach on loading plate, by loading plate pair Its support, after glass is on loading plate, the glass one end is manually pushed, and starts one first to corresponding secondary car body back side The storage channel direction activity that blend stop and second gear item are constituted, until the both ends of the glass are completely in a storage channel respectively After interior, then stop action, and at this time glass towards the side of second gear item then rely on the second gear item and second extend item On the elastic bumps of position, in order to can manually go to be placed in other glass to other storage channels, to all storage channels After being inside all equipped with glass, conveying people manual operation clamp system drives all first blend stops, and is respectively facing respective position Second gear item it is close, in, the elastic bumps of corresponding first blend stop and the first extension position then touch the glass, with This realizes held tight to four right angle regions of the glass, and present invention handling glass process is simple, easy to operate, at the same time Under the premise of conveying multiple pieces of glass, the safety of glass is also ensured.

Detailed description of the invention

Fig. 1 is schematic perspective view one of the invention；

Fig. 2 is schematic perspective view two of the invention；

Fig. 3 is side view of the invention；

Fig. 4 is the enlarged drawing in Fig. 3 at A；

Fig. 5 is the enlarged drawing in Fig. 3 at B；

Fig. 6 is the enlarged drawing in Fig. 3 at C；

Fig. 7 is schematic perspective view three of the invention；

Fig. 8 is the enlarged drawing in Fig. 7 at D；

Fig. 9 is schematic perspective view four of the invention；

Figure 10 is the enlarged drawing in Fig. 9 at E；

Description of symbols: main car body 1, secondary car body 1a, loading plate 1b, backer plate 1c push handle 1d, the first idler wheel 1e, the second idler wheel 1f.

It is oriented to top plate 2, rack-plate 2b, lifting motor 2c, gear 2d, mounting plate 2e.

Component 3, the first blend stop 3a, second gear 3b, the first clamping raised line 3c, V-type material folding mouth 3d, first extends a 3e, Second extends a 3f, and the second clamping raised line 3g, elastic bumps 3k, guide pin 3m stores channel 3t.

Trapezoidal screw 4, rotating disk 4a, nut slider 4b.

Glass 5.

Specific embodiment

With reference to the accompanying drawings of the specification and embodiment, specific embodiments of the present invention are described in further detail:

Referring to figs. 1 to a kind of building glass transport device shown in Fig. 10, including main car body 1, secondary car body 1a, guiding top plate 2 and the identical locating piece of several structures, one end of secondary car body 1a is fixedly connected with main car body 1, and its other end is upward Suspension constitutes 155 degree of angle setting, the top of secondary car body 1a between the loading end of secondary car body 1a and the loading end of main car body 1 Equipped with inclined direction loading plate 1b parallel with it, all locating pieces are installed on the loading end of secondary car body 1a, and are owned Locating piece is successively arranged along the inclined direction arranged at equal intervals of secondary car body 1a, and the top of secondary car body 1a is equipped with clamp system, clamps Mechanism and all locating pieces are sequentially connected, and can adapt to the positioning mesh of different-thickness glass 5 to adjust all locating pieces , the top of secondary car body 1a movable can be arranged in by elevating mechanism in guiding top plate 2, the top of all locating pieces with lead It is flexibly connected to top plate 2, and is oriented to height of the top plate 2 to adjust all locating pieces.

The pair car body 1a is string configuration, and locating piece includes the broadside perpendicular bisector symmetrically arranged two along secondary car body 1a A component 3, loading plate 1b are located between two components 3, and each component 3 includes symmetrical along the longitudinal direction gap of secondary car body 1a The first blend stop 3a and second gear 3b, between the first blend stop 3a and second gear 3b constitute with for glass 5 be able to by Channel 3t is stored, second gear 3b is arranged close to main car body 1 always, and the loading end activity of the first blend stop 3a and secondary car body 1a are matched It closing, second gear 3b is fixedly connected with the loading end of secondary car body 1a, and the first blend stop 3a and second gear 3b are inclined to set, and And the inclined direction of the two is each perpendicular to the loading end of secondary car body 1a, clamp system and all first on front side of secondary car body 1a The bottom end of blend stop 3a is sequentially connected；Glass 5 is inclined, and the first blend stop 3a and second gear 3b being placed in a component 3 are constituted Storage channel 3t, and pass through the storage channel 3t and reach in the storage channel 3t of another component 3 opposite with the component 3, Purpose is, so that the part in 5 four right angle regions of glass carries out locating clip by the first blend stop 3a and second gear 3b It holds；And during being put into, 5 bottom end of glass is slided by loading plate 1b as support, and with it；After glass 5 is put well, Next sheet glass 5 is put into next locating piece, clamp system can not clamp the glass 5 at this time, because other are positioned It needing to be placed in glass 5 in part, the glass 5 previously put at this time will rely on two opposite second gear 3b at inclination, After all glass 5 are individually positioned in a locating piece, i.e., manual operation clamp system is realized to all first blend stop 3a's Driving promotes each first blend stop 3a close to respective second gear 3b, in, to relying on the region respective second gear 3b Glass 5 realize clamping.

The first blend stop 3a and second gear 3b is hollow structure, and the top of the two is open setting, the It is able to vertical movable the first extension 3e and second that is inserted in the top of one blend stop 3a and second gear 3b and extends item 3f, all first extension 3e are flexibly connected with guiding 2 bottom of top plate, and the inclined direction of activity direction and secondary car body 1a Parallel, all second extension 3f are fixedly connected with guiding top plate 2；Storage channel 3t in each component 3 is opening, Purpose is put so length can be adapted to by a small margin and change different glass 5, if 5 height of glass to be transported changes, So guiding top plate 2 then detaches all first extension 3e and all second extension 3f drives by elevating mechanism respective In first blend stop 3a and second gear 3b, the height maximizing in storage channel 3t is realized with this.

The bottom end of the first blend stop 3a and second gear 3b is respectively equipped with an intilted first clamping raised line 3c, And the first clamping raised line 3c structure of the two, at an angle close to 25 degree of V-type material folding mouth 3d, first extends a 3e and second The top for extending a 3f is respectively equipped with an intilted second clamping raised line 3g, and the second clamping raised line 3g of the two is constituted One angle is close to 25 degree of V-type material folding mouth 3d；Glass 5 is placed in the storage channel that the first blend stop 3a and second gear 3b is constituted After in 3t, the large area at 5 center of glass is not contacted with the first blend stop 3a and second gear 3b, the area of 5 four right angles of glass Domain part is then contacted with the first clamping raised line 3c and the second clamping raised line 3g, and such purpose is increased to 5 right angle area of glass The clamping force in domain, it is ensured that it is seamless, corresponding to it is all first extend a 3e second clamping raised line 3g with guiding 2 bottom of top plate The cooperation of portion's horizontal anomalous movement, and activity direction is parallel with the extending direction of secondary car body 1a.

The medial surface of the clamping end of all first clamping raised line 3c and all second clamping raised line 3g is respectively equipped with one A elastic bumps 3k；Elastic bumps 3k is that contact glass 5 is in the part in V-type material folding mouth 3d, the elasticity of elastic bumps 3k Power ensures larger to the clamping force of glass 5 and stablizes.

The medial surface of elastic bumps 3k corresponding to all first extension 3e is covered each by equipped with a guide pin 3m, guide pin 3m are made of stainless steel material；When glass 5 is placed in the first blend stop 3a and second gear 3b, the two of right angle End respectively corresponds the elastic bumps 3k of the elastic bumps 3k and the first blend stop 3a of the first extension 3e, and 5 side of glass contacts Elastic bumps 3k；Since according to what is be previously mentioned in above-described embodiment, 5 bottom end of glass carries out support and cunning by loading plate 1b It is dynamic, then side then contacts the first guide pin 3m for extending the position 3e always, since guide pin 3m is stainless steel material, then After glass 5 is bonded therewith, can be well on sliding along its surface.

The clamp system includes trapezoidal screw 4 and rotating disk 4a, and 4 axis of trapezoidal screw connects in the top of secondary car body 1a, ladder The axial direction of shape lead screw 4 is parallel with the inclined direction of secondary car body 1a, and rotating disk 4a is fixed on trapezoidal screw 4 far from main car body 1 The bottom end of one end, the first clamping raised line 3c corresponding to all first blend stop 3a on front side of secondary car body 1a is respectively equipped with a nut Sliding block 4b, all nut slider 4b are set on trapezoidal screw 4；When all glass 5 are respectively implanted in a storage channel 3t Afterwards, manually rotate rotating disk 4a so that trapezoidal screw 4 rotate, promote all nut slider 4b along axial movement, movement In, all first blend stop 3a are respectively close to respective second gear 3b, in, correspond to all first blend stop 3a and all the The elastic bumps 3k of the one extension position 3e then touches glass 5, and all second gear 3b and all second is cooperated to extend a 3f The elastic bumps 3k of position implements stable holding to the glass 5.

The extending direction of the guiding top plate 2 is parallel with the extending direction of secondary car body 1a, and installation is had backing on main car body 1 Plate 1c is oriented to top plate 2 towards one end of main car body 1 perpendicular to the leading flank of backer's plate 1c, and the front side also with backer's plate 1c The vertical activity cooperation in face, elevating mechanism include rack-plate 2b, lifting motor 2c and mounting plate 2e, and mounting plate 2e and backer's plate 1c connect Connect, rack-plate 2b from top to bottom run through mounting plate 2e and with guiding top plate 2 center at connect, the collar bush of lifting motor 2c Equipped with the gear 2d that can be meshed with the tooth socket of rack-plate 2b；Backer's plate 1c stablizes guiding top plate 2 in secondary car body 1a Top；When needing the higher glass 5 of shipping height, lifting motor 2c work, output rotor relies on gear 2d engaging tooth batten 2b movement, purpose link with action-oriented top plate 2 with the movement of rack-plate 2b, so that guiding top plate 2 extends with all first 3e and all second extension 3f do telescoping movement by respective first blend stop 3a and second gear 3b respectively.

The rear end of the main car body 1, which is equipped with, pushes handle 1d, and the front end two sides of main car body 1 are respectively equipped with first idler wheel 1e, the front end two sides of secondary car body 1a are respectively equipped with a second idler wheel 1f；Handle 1d is pushed to push the present invention convenient for construction personnel Whole, the rolling material of the first idler wheel 1e and second ensures that main car body 1 and pair car body 1a can stablize activity.

A kind of application method of building glass transport device, builds including one kind described in any one of claim 1~9 Build glass transportation device, comprising the following steps:

Step 1: conveying people passes through clamp system for all the first blend stop 3a drivings to reach far from respective in advance Second gear 3b purpose, specific moving distance are as follows: the elasticity for extending the position 3e corresponding to the first blend stop 3a and first should be met Raised 3k makes it that can not contact the glass 5 when glass 5 is put into storage channel 3t；

Step 2: by one storage channel 3t being made of the first blend stop 3a and second gear 3b of the inclined merging of glass 5 Interior, the lateral attitude of glass 5 is the load plane perpendicular to loading plate 1b, and one end of glass 5 passes through the storage channel 3t can be reached on loading plate 1b, by loading plate 1b to its support；

Step 3: the one end of glass 5 is manually pushed after glass 5 is on loading plate 1b, start to corresponding secondary car body 1a The storage channel direction the 3t activity that a first blend stop 3a and second gear 3b for back side is constituted, until the both ends point of the glass 5 After not being completely in a storage channel 3t, then stop action, and at this time glass 5 towards the side of second gear 3b then according to It leans against the second gear 3b and second to extend on the elastic bumps 3k of the position 3f, in order to can manually go to be placed in other glass In 5 to other storages channel 3t；

Step 4: conveying people manual operation clamp system will own after being all equipped with glass 5 in all storage channel 3t First blend stop 3a driving, and the second gear 3b for being respectively facing respective position is close, in, corresponding first blend stop 3a and first The elastic bumps 3k for extending the position 3e then touches the glass 5, is realized with this to four right angle regions of the glass 5 close Clamping.

Working principle: conveying people passes through clamp system for all the first blend stop 3a drivings to reach far from respectively in advance Second gear 3b purpose, with this meet corresponding to the first blend stop 3a and first extend the position 3e elastic bumps 3k, in glass When glass 5 is put into storage channel 3t, make it that can not contact the glass 5；Subsequent conveying people is by the inclined merging of glass 5 one by the In the storage channel 3t that one blend stop 3a and second gear 3b is constituted, the lateral attitude of glass 5 is holding perpendicular to loading plate 1b Plane is carried, and one end of glass 5 passes through storage channel 3t and can reach on loading plate 1b, by loading plate 1b to its support, glass After glass 5 is on loading plate 1b, the one end of glass 5 is manually pushed, and starts a first gear to corresponding secondary car body 1a back side The storage channel direction the 3t activity that 3a and second gear 3b is constituted, until the both ends of the glass 5 are completely in a storage respectively It after putting in the 3t of channel, then stops action, and glass 5 towards the side of second gear 3b then relies on the second gear 3b at this time On the elastic bumps 3k for extending the position 3f with second, in order to can manually remove to be placed in other glass 5 to other storage channels In 3t, after being all equipped with glass 5 in all storage channel 3t, clamp system is manually operated by all first blend stop 3a in conveying people Driving, and the second gear 3b for being respectively facing respective position is close, in, corresponding first blend stop 3a and first extends a 3e The elastic bumps 3k set then touches the glass 5, realizes held tight to four right angle regions of the glass 5 with this.

The above described is only a preferred embodiment of the present invention, not making any limit to technical scope of the invention System, therefore any subtle modifications, equivalent variations and modifications to the above embodiments according to the technical essence of the invention, In the range of still falling within technical solution of the present invention.

Claims (8)

1. a kind of building glass transport device, it is characterised in that: including main car body (1), secondary car body (1a), guiding top plate (2) with And the identical locating piece of several structures, one end of secondary car body (1a) is fixedly connected with main car body (1), and its other end is upward Suspension constitutes 155 degree of angle setting, secondary car body (1a) between the loading end of secondary car body (1a) and the loading end of main car body (1) Top be equipped with inclined direction loading plate (1b) parallel with it, all locating pieces are installed in the loading end of secondary car body (1a) On, and all locating pieces are successively arranged along the inclined direction arranged at equal intervals of secondary car body (1a), set at the top of secondary car body (1a) There is clamp system, clamp system and all locating pieces are sequentially connected, and can adapt to different thickness to adjust all locating pieces The positioning purpose of glass (5) is spent, guiding top plate (2) movable can be arranged in the top of secondary car body (1a) by elevating mechanism, The top of all locating pieces is flexibly connected with guiding top plate (2), and is oriented to the height of top plate (2) to adjust all locating pieces Degree.

2. a kind of building glass transport device according to claim 1, it is characterised in that: the pair car body (1a) is strip Shape structure, locating piece include symmetrically arranged two components (3) of broadside perpendicular bisector along secondary car body (1a), and loading plate (1b) is located at Between two components (3), each component (3) includes along symmetrical first blend stop (3a) in the longitudinal direction gap of secondary car body (1a) With second gear item (3b), between the first blend stop (3a) and second gear item (3b) constitute with for glass (5) be able to by storage Channel (3t), second gear item (3b) are arranged close to main car body (1) always, and the loading end of the first blend stop (3a) and secondary car body (1a) is living Dynamic cooperation, second gear item (3b) are fixedly connected with the loading end of secondary car body (1a), and the first blend stop (3a) and second gear item (3b) are equal Be inclined to set, and the inclined direction of the two is each perpendicular to the loading end of secondary car body (1a), clamp system in secondary car body The bottom end of all first blend stops (3a) on front side of (1a) is sequentially connected.

3. a kind of building glass transport device according to claim 2, it is characterised in that: first blend stop (3a) and Two grades of items (3b) are hollow structure, and the top of the two is open setting, the first blend stop (3a) and second gear item (3b) Top in be able to vertical movable the first extension item (3e) and second that is inserted with and extend item (3f), all first extensions items (3e) is flexibly connected with guiding top plate (2) bottom, and activity direction is parallel with the inclined direction of secondary car body (1a), owns Second, which extends item (3f), is fixedly connected with guiding top plate (2).

4. a kind of building glass transport device according to claim 3, it is characterised in that: first blend stop (3a) and The bottom end of two grades of items (3b) is respectively equipped with intilted first clamping raised line (3c), and the first clamping raised line of the two For (3c) structure at an angle close to 25 degree of V-type material folding mouth (3d), first, which extends item (3e) and second, extends the top of item (3f) End is respectively equipped with intilted second clamping raised line (3g), and second clamping raised line (3g) structure of the two is at an angle Close to 25 degree of V-type material folding mouth (3d).

5. a kind of building glass transport device according to claim 4, it is characterised in that: all first clamping raised lines The medial surface of the clamping end of (3c) and all second clampings raised line (3g) is respectively equipped with an elastic bumps (3k).

6. a kind of building glass transport device according to claim 5, it is characterised in that: prolong corresponding to all described first The medial surface for stretching the elastic bumps (3k) of item (3e) is covered each by equipped with a guide pin (3m), and guide pin (3m) is stainless steel Matter is made.

7. a kind of building glass transport device according to claim 5, it is characterised in that: the clamp system includes trapezoidal Lead screw (4) and rotating disk (4a), trapezoidal screw (4) axis connect in the top of secondary car body (1a), the axial direction of trapezoidal screw (4) and secondary vehicle The inclined direction of body (1a) is parallel, and rotating disk (4a) is fixed on the one end of trapezoidal screw (4) far from main car body (1), corresponds to The bottom end of first clamping raised line (3c) of all first blend stops (3a) on front side of secondary car body (1a) is respectively equipped with a nut slider (4b), all nut sliders (4b) are set on trapezoidal screw (4).

8. a kind of building glass transport device according to claim 1, it is characterised in that: guiding top plate (2) is prolonged It is parallel with the extending direction of secondary car body (1a) to stretch direction, installation is had backing plate (1c) on main car body (1), is oriented to top plate (2) court To one end of main car body (1) perpendicular to the leading flank of backer's plate (1c), and it is also movable vertically with the leading flank of backer's plate (1c) Cooperation, elevating mechanism include rack-plate (2b), lifting motor (2c) and mounting plate (2e), and mounting plate (2e) and backer's plate (1c) are even Connect, rack-plate (2b) from top to bottom through mounting plate (2e) and with guiding top plate (2) center at connect, lifting motor (2c) Collar bush be equipped with the gear (2d) that can be meshed with the tooth socket of rack-plate (2b).