CN208393412U - One kind is collapsible to cross sill trolley - Google Patents

Abstract

The utility model provides a kind of collapsible sill trolley excessively, belongs to trolley technical field；It solve stability when existing trolley crosses sill it is poor, cross the slow-footed technical problem of sill；It is a kind of it is collapsible cross sill trolley, including main car body, there are two and be movably connected by end, any main car body can be rotated relative to another main car body；Connector is connected with two main car bodies respectively and two main car bodies can be made to be relatively fixed to predetermined angle；Loading car body is located therein on a main car body and is movably connected with the main car body；When two main car bodies turn in same plane, the carrier physical efficiency is moved on another main car body by a wherein main car body；Cooperated by two main car bodies, loading car body on a wherein main car body by being moved on another main car body, and compared to directly contacting with threshold, loading car body mobile fast speed on main car body greatly improves crossing sill speed and crossing sill efficiency for loading car body.

Description

One kind is collapsible to cross sill trolley

Technical field

The utility model belongs to trolley technical field, is related to a kind of sill trolley excessively, especially a kind of collapsible sill excessively Trolley.

Background technique

For trolley due to very convenient in the lighter article of short-haul operation, use scope is quite wide, wherein It is just commonly used on ship and arrives trolley.

But many places are provided with threshold on ship, and some thresholds are semi-open types, this is just caused to handling work Inconvenience, therefore, people devise a kind of trolley that can cross threshold, for example, Authorization Notice No. is CN 205086990 U's Utility model patent discloses a kind of trolley that can cross threshold, including car bottom plate, is connected with side plate above the rear end of car bottom plate, The top of side plate is equipped with hand handle, and the lower section of the car bottom plate is equipped with front vehicle wheel and rear wheel, connects under connecting rod a on front vehicle wheel End, the upper end of the connecting rod a are movably connected on the bottom surface of the car bottom plate, are additionally provided with bullet between the connecting rod a and car bottom plate Spring a connects the lower end of connecting rod b on the rear wheel, and the upper end of the connecting rod b is movably connected on the bottom surface of car bottom plate, described Spring b is additionally provided between connecting rod b and car bottom plate, this trolley when encountering threshold, connecting rod a and connecting rod b can be turned to Car bottom plate is in the angle of near zero degree, so that car bottom plate directly rests on threshold, to keep entire car bottom plate sliding from threshold Past, but this trolley is there are following technical problem, 1, car bottom plate rest on threshold, the two contact area is smaller, causes Stability is poor when car bottom plate is mobile, easily leads to cargo tilt or overturning；2, car bottom plate resistance when moving on threshold is larger, especially , when cargo is heavier, car bottom plate movement is more difficult for it, and car bottom plate is caused to cross sill speed compared with slow, efficiency is lower；3, car bottom plate and door Sliding friction occurs for sill, over time, easily leads to car bottom plate and is damaged, substantially reduce the service life of car bottom plate.

In conclusion in order to solve above-mentioned trolley, need to design a kind of stability preferably, cross sill Speed is fast and service life is longer collapsible crosses sill trolley.

Utility model content

The purpose of this utility model be in view of the above-mentioned problems existing in the prior art, propose a kind of stability preferably, mistake Sill speed is fast and service life is longer collapsible crosses sill trolley.

The purpose of this utility model can be realized by the following technical scheme: a kind of collapsible sill trolley excessively, including

Main car body, there are two and be movably connected by end, any main car body can be rotated relative to another main car body；

Connector is connected with two main car bodies respectively and two main car bodies can be made to be relatively fixed to predetermined angle；

Loading car body is located therein on a main car body and is movably connected with the main car body；

When two main car bodies turn in same plane, the carrier physical efficiency is moved to separately by a wherein main car body On one main car body.

In the collapsible sill trolley excessively of above-mentioned one kind, the connector includes

Pull rod has two and is movably connected respectively with two main car bodies；

Tension spring is connected between two pull rods and respectively with two pull rods；

The tension spring can make two main car bodies be relatively fixed to predetermined angle.

In the collapsible sill trolley excessively of above-mentioned one kind, one end of the pull rod is fixed with the hinge with main car body articulated connection Fitting is provided with positioning pipe between two articulation pieces, and the pull rod and tension spring are respectively positioned in positioning pipe, when the rotation of two main car bodies, institute State articulation piece energy relative positioning pipe it is mobile and be capable of fixing on positioning pipe.

In the collapsible sill trolley excessively of above-mentioned one kind, it is connected with lockplate in one end of a wherein main car body, institute It states and is installed with closing piece on lockplate, one end of another main car body is provided with clamping block, being provided on the clamping block can be with lock The lock slots that block matches.

In the collapsible sill trolley excessively of above-mentioned one kind, one end of a wherein main car body is installed with mounting base, described Lockplate and mounting base are articulated and connected, and are provided with Lock spring in mounting base, the both ends of Lock spring respectively with mounting base and Lockplate contact, the Lock spring return back to lock state after lockplate can be made to rotate.

In the collapsible sill trolley excessively of above-mentioned one kind, one end of the lockplate is bent upwards the portion of pressing that is formed with, institute It states loading vehicle bottom and is provided with unlock piece, when loading car body is moved on another main car body by main car body, the unlock piece It can be contacted with the portion of pressing and rotate lockplate.

In the collapsible sill trolley excessively of above-mentioned one kind, the front end of a wherein main car body is provided with polarized plug, another One main car body rear end is correspondingly provided with positioning jack.

In the collapsible sill trolley excessively of above-mentioned one kind, it is movably set on the main car body and separates and stretch out main car body table Two gag lever posts in face, the upper end of gag lever post are provided with inclined-plane, and the loading vehicle bottom is provided with limited block, when loading car body moves When dynamic, limited block can be against on inclined-plane and make gag lever post movement, and limited block can be restricted between two gag lever posts, on main car body It is provided with the driving handle for being connected with a wherein gag lever post and the gag lever post capable of being made mobile.

In the collapsible sill trolley excessively of above-mentioned one kind, the main car body includes two guide rods for being parallel to each other and being connected, institute State loading car body two sides and be provided with guide wheel, its surface is provided with guide groove on the guide wheel, the guide rod be located at guide groove it is interior and Guide wheel can roll on guide rod.

In the collapsible sill trolley excessively of above-mentioned one kind, the two sides of the loading car body are symmetrically arranged with fixed plate, fixed It is provided with the locating slot extended in the same direction and strip-shaped hole on plate, push rod is provided between two fixed plates, push rod both ends are respectively arranged with Locating shaft and shaft, the shaft are located in strip-shaped hole, and locating slot may move into or out in the locating shaft.

Compared with prior art, the utility model has the following beneficial effects:

1, when this trolley crosses sill, it first wherein will be pushed into threshold side by a main car body, then will be fixed on the main car body Another main car body of predetermined angle is laid flat a threshold other side, when two main car bodies are in the same plane, carrier physical efficiency from its In be moved on another main car body on a main car body, it is preferable that loading car body crosses sill stability, and cargo run-off the straight or will not be translated into The phenomenon that.

2, by two main car body cooperations, loading car body is compared by being moved on another main car body on a wherein main car body Directly contacted with threshold, loading car body mobile fast speed on main car body, greatly improve loading car body cross sill speed with Cross sill efficiency.

3, loading car body is entire to cross sill mistake by when wherein a main car body is moved on another main car body, that is, completing sill Cheng Zhong, loading car body are not contacted with threshold, so that loading car body is not easy to be damaged, service life is longer.

Detailed description of the invention

Fig. 1 is the side elevation structure chart of the utility model.

Fig. 2 is the positive facade structure chart of the utility model.

Fig. 3 is the plan view of left side main car body in the utility model.

Fig. 4 is the plan view of right side main car body in the utility model.

Fig. 5 is the connection schematic diagram of lockplate and mounting base in the utility model.

Fig. 6 is the connection schematic diagram of gag lever post and main car body in the utility model.

Fig. 7 is the connection schematic diagram of push rod and fixed plate in the utility model.

In figure, 100, main car body；110, guide rod；111, movable pulley；112, handrail；113, hinged block；114, polarized plug； 115, positioning jack；120, connecting rod；130, lockplate；131, articulated shaft；132, closing piece；133, portion is pressed；140, clamping block； 141, lock slots；150, mounting base；151, mounting blocks；152, Lock spring；153, limited block；160, limit base；161, first Gag lever post；161a, the first inclined-plane；162, the second gag lever post；162a, the second inclined-plane；163, first back-moving spring；164, second is multiple Position spring；165, driving handle；

200, connector；210, pull rod；220, tension spring；230, articulation piece；240, positioning pipe；

300, loading car body；310, unlock piece；320, guide wheel；321, guide groove；330, fixed plate；331, locating slot；332, Strip-shaped hole；340, push rod；341, locating shaft；342, shaft.

Specific embodiment

It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further Description, but the utility model is not limited to these examples.

The purpose of this utility model is that stability when existing trolley crosses sill in loading is improved, to guarantee The safety of cargo and intact, meanwhile, also for the efficiency for improving speed when trolley crosses sill, when avoiding elongating delivery Between.

As shown in Figure 1 and Figure 2, the utility model one kind is collapsible crosses sill trolley, including two main car bodies 100, two master of connection The connector 200 and loading car body 300 of car body 100.

As shown in Figure 3, Figure 4, two main car bodies, 100 structure is essentially identical, and each main car body 100 is rectangular frame structure, Each main car body 100 includes axial setting and two parallel guide rods 110 and the company for being separately connected two guide rods, 110 rear and front end Extension bar 120 is separately installed with the movable pulley 111 that main car body 100 can be made mobile in the both ends bottom of two guide rods 110, in movable pulley Under 111 support, the upper surface of two guide rods 110 is higher than the top of threshold, is respectively fixedly connected to be equipped at the both ends of guide rod 110 and lead with two The connected handrail 112 of bar 110 pushes handrail 112 that main car body 100 can be made mobile, and the adjacent one end of two main car bodies 100 of left and right passes through The hinged block 113 that 110 end of guide rod is arranged in is articulated and connected, and by hinged block 113, any one main car body 100 can be relatively another The rotation of one main car body 100, the connector 200 are connected with two main car bodies 100 respectively and two main car bodies 100 can be made to be relatively fixed to Predetermined angle, it is preferred that the predetermined angle be 90 °, loading car body 300 be located on left side main car body 100 and with the main car body 100 It is movably connected, loading car body 300 is rectangular plate structure, is used to load cargo, loading car body 300 is located at left side main car body It is flexibly connected on 100 and with two guide rods 110, which can move axially on two guide rods 110.

Under original state, left side main car body 100 be it is horizontal, right side main car body 100 be erect shape and with left side main car body 100 keep plumbness, and under the action of connector 200, left side car body and right side car body are kept fixed state, in use, pushing away Then right side main car body 100 is turned to threshold side and is in same flat with left side main car body 100 by dynamic left side main car body 100 In face, at this point, threshold is located at the lower section of two main car bodies, 100 intersection, and loading car body 300 can be moved up from left side main car body 100 It moves to right side main car body 100, so that realizing that cargo is steady, quick, safety crosses sill, after crossing sill, by 100 turns of left side main car body It moves to upright state, then pulls right side main car body 100, it can be achieved that cargo moves after crossing sill.

Using this structure, realize trolley it is steady in loading, it is quick cross sill, cargo security is high, mistake Sill are high-efficient, meanwhile, it can also prevent trolley impaired.

Although the structure is applicable in it is worth noting that, this trolley is for the trolley improvements introduced on ship In the trolley structure of any occasion.

On on the basis of the said structure, the utility model is further improved and refines to it.

Further, as shown in Figure 1, the connector 200 includes pull rod 210 and tension spring 220, the pull rod 210 has two Root, wherein the guide rod 110 of a pull rod 210 and left side main car body 100 is movably connected, another guide rod 110 and right side main car body 100 guide rod 110 is movably connected, and under the action of tension spring 220, two main car bodies 100 are fixed on 90 ° of plumbness, rotates it In a main car body 100 when, tension spring 220 plays certain buffer function, avoid main car body 100 is too fast from rotating down, and when master When car body 100 is rotated up, the pulling force of tension spring 220, and make main car body 100 relatively labor-saving when rotating.

Further, one end of the pull rod 210 is fixed with the articulation piece 230 being articulated and connected with main car body 100, and two is hinged Positioning pipe 240 is provided between part 230, the pull rod 210 is respectively positioned in positioning pipe 240 with tension spring 220, when 100 turns of two main car bodies When dynamic, the articulation piece 230 can relative positioning pipe 240 it is mobile and be capable of fixing on positioning pipe 240, that is to say, that when two main vehicles When body 100 is gradually distance from, articulation piece 230 is gradually distance from positioning pipe 240, and when two main car bodies 100 are in 90 ° of states, two is hinged Part 230 is located at the both ends nozzle of positioning pipe 240 and fixes with 240 phase of positioning pipe.

The setting of articulation piece 230 realizes being flexibly connected for pull rod 210 and main car body 100, meets pull rod 210 and main vehicle It can be rotated while connection between body 100, and the effect of positioning pipe 240, first is that avoid pull rod 210 and tension spring 220 exposed, and the two It plays a certain protective role, second is that being risen when two main car bodies 100 keep 90 ° of plumbness to the main car body 100 for erectting direction To effect is supported and fixed, avoids the main car body 100 shaking and mention its stability.

As shown in Figure 3, Figure 4, it is provided with lockplate 130 in the connecting rod 120 for being located at 100 one end of left side main car body, locked Fixed board 130 is that an articulated shaft 131 is horizontally installed in the middle part of the lower surface of lockplate 130 in axially extending plate structure, should Articulated shaft 131 is connected with the connecting rod 120 for being located at 100 front end of main car body, and the front end of lockplate 130 is stretched out outside connecting rod 120, after End is separated with connecting rod 120, is installed with closing piece 132 in one end lower surface of lockplate 130, closing piece 132 is the bulk of triangle Structure is installed with clamping block 140 in the connecting rod 120 for being located at 100 one end of right side main car body, and clamping block 140 is plate structure, Its middle part lateral recesses is simultaneously formed with lock slots 141, and by driving 130 rear end of lockplate, entire lockplate 130 can be hinged with this Axis 131 is circular rotatable, and closing piece 132 may move into the lock slots 141 of other main car bodies 100, if two main car body 100 moves in opposite directions Dynamic, closing piece 132 can be against on clamping block 140, avoid two main car body 100 from moving round about, to realize the two main vehicle Body 100 is relatively fixed, and certainly, which can also be realized by other structures.

This structure can increase other two main car body 100, pass through lockplate 130 in this trolley and other two Lock slots 141 in main car body 100 or the lockplate in the lock slots in this trolley 141 and other two main car body 100 130 match, it can be achieved that four main car bodies 100 are sequentially connected, so that loading car body 300 can be steady on four main car bodies 100 Mobile, it is suitable for having the case where the case where continuous multiple thresholds or ground out-of-flatness.

As shown in figs. 3 and 5, mounting base 150, institute are fixed in the connecting rod 120 for being located at 100 one end of left side main car body Lockplate 130 is stated to be located in mounting base 150 and be articulated and connected with 150 two sides of mounting base, it is fixed on the inner surface of mounting base 150 Mounting blocks 151 are equipped with Lock spring 152 in the mounting base 150, and the mounting blocks 151 are located in Lock spring 152, lock The both ends for determining spring 152 are contacted with mounting base 150 and lockplate 130 respectively, it is preferred that the contact portion of spring and lockplate 130 Between 130 rear end of articulated shaft 131 and lockplate, the Lock spring 152 returns back to lock after lockplate 130 can be made to rotate for position Determine state.

The setting of mounting base 150, space needed for providing installation to lockplate 130 and spring, facilitates lockplate 130 With the installation of spring, and Lock spring 152 is set, lockplate 130 is in the lock state always, in this way, when two main car bodies 100 connect When touching, under the effect of Lock spring 152, closing piece 132 can voluntarily be moved into lock slots 141, without human intervention, convenient, automatically Change degree is high, and mounting blocks 151 can limit the movement of Lock spring 152.

Further, the two sides upper end of the mounting base 150 think respectively in be formed by bending limited block 153, it is preferred that should Limited block 153 is located at 152 top of Lock spring and lockplate 130 between limited block 153 and Lock spring 152, works as locking When plate 130 is lock state, the lockplate 130 is against on 153 lower surface of limited block.

By the way that limited block 153 is arranged, the rear end of lockplate 130 is resisted, is avoided in the case where Lock spring 152 acts on, is locked 130 transition of fixed board rotates and causes closing piece 132 that can not normally enter in lock slots 141.

As shown in figure 5, the rear end of the lockplate 130 is bent upwards the portion of pressing 133 that is formed with, the loading car body 300 Bottom is provided with unlock piece 310, it is preferred that the unlock piece 310 is the crotch being connected with 300 bottom of loading car body, the crotch The direction opposite to 300 moving direction of loading car body is bent, main car body after loading car body 300 is moved to by preceding main car body 100 When on 100, the unlock piece 310 can contact with the portion of pressing 133 and rotate lockplate 130.

Using this structure, so that loading car body 300 is moved to the main vehicle in this trolley by other two main car body 100 When on body 100, can the locking released in other main car bodies 100 and this trolley between main car body 100 voluntarily, without artificial solution It removes, this unlocking structure is ingenious, convenient for unlocking, quick, time saving and energy saving.

As shown in Figure 3, Figure 4,110 one end of guide rod of left side main car body 100 is provided with polarized plug 114, it is preferred that The polarized plug 114 is bullet shape, and 110 one end of guide rod positioned at right side main car body 100 is correspondingly provided with positioning jack 115.

By the way that polarized plug 114 is respectively set on the guide rod 110 of left side main car body 100 and right side main car body 100 and determines Position jack 115 enables the polarized plug 114 of two main car bodies 100 and the positioning on other two main car body 100 in this trolley to insert Hole 115 carry out two main car bodies 100 in mating or this trolley positioning jack 115 can on other two main car body 100 Polarized plug 114 carry out mating, locked to improve two main car bodies 100 in this trolley with other two main car body 100 Determine the stability under state.

As shown in Fig. 2, Fig. 6, it is fixed with limit base 160 on 110 inner sidewall of a wherein guide rod of any main car body 100, Two gag lever posts for separating and stretching out 110 surface of guide rod are movably set on the limit base 160, the upper end of gag lever post is provided with tiltedly Face, in order to make it easy to understand, two gag lever posts are divided into the first gag lever post 161 and the second gag lever post with main car body 100 from front to back 162, two inclined-planes are respectively the first inclined-plane 161a and the second inclined-plane 162a, and the first inclined-plane 161a and the second inclined-plane 162a are by introversion It is multiple to be arranged with first be against on limit base 160 and the first gag lever post 161 respectively on the first gag lever post 161 for outer incline setting Position spring 163 is arranged with second be against on limit base 160 and the second gag lever post 162 respectively on the second gag lever post 162 and resets Spring 164,300 bottom of loading car body are provided with limit plate (not shown), when loading car body 300 is mobile, limit Plate can be against on the first inclined-plane 161a or the second inclined-plane 162a and make the first gag lever post 161 or the second gag lever post 162 mobile, and limit Position plate can be restricted between the first gag lever post 161 and the second gag lever post 162, be provided on main car body 100 and the second gag lever post 162 driving handles 165 for being connected and second gag lever post 162 capable of being made mobile.

After the first gag lever post 161 and the second gag lever post 162 is arranged, when loading car body 300 enters the right side by left side main car body 100 After on side main car body 100 (i.e. sill after), or enter by other main car body 100 two main car bodies 100 in this trolley When upper, limit plate can be such that the first gag lever post 161 moves downward, limit plate enters first by contacting with the first inclined-plane 161a Between gag lever post 161 and the second gag lever post 162, under the keeping out of the first gag lever post 161 and the second gag lever post 162, entire carrier Body 300 can not move axially, and ensure that the stability of loading car body 300 when main car body 100 is mobile, when needing mobile loading car body When 300, by driving handle 165, the second gag lever post 162 can be rotated, at this point, loading car body 300 can be moved to 100 rear end of main car body It is dynamic, but under the blocking of the first gag lever post 161, loading car body 300 is mobile without 100 front end of normal direction main car body, and this avoid loads There is return phenomenon in object car body 300, and after limit plate removes between 161 bar of the first gag lever post and the second gag lever post 162, if loading Car body 300 moves back, and after limit plate is contacted with the second inclined-plane 162a, also can enter to the first gag lever post 161 and the second gag lever post 162 Between.

As shown in Figure 1, Figure 2,300 two sides of loading car body are provided with guide wheel 320, and the guide wheel 320 has four groups, and every group has Two guide wheels 320 being connected by a wheel shaft, every group of 320 cross direction profiles of guide wheel, four groups of guide wheels 320 are each led in axially extending Its surface is provided with guide groove 321 on wheel 320, the guide rod 110 is located in guide groove 321 and guide wheel 320 can be on guide rod 110 It rolls.

Using this structure, loading car body 300 is on the one hand enabled flexibly, quickly to move axially on main car body 100, On the other hand, guide rod 110 is matched with guide groove 321, so that loading car body 300 is not easy shaking and transverse shifting, is substantially increased The stability of loading car body 300 ensure that the safety of cargo.

As shown in Figure 1, Figure 7 shows, the two sides of the loading car body 300 are symmetrically arranged with fixed plate 330, the fixed plate 330 There are two groups and be respectively arranged at the both ends of loading car body 300, the locating slot 331 and item extended in the same direction is provided in fixed plate 330 Shape hole 332, locating slot 331 are located at 332 top of strip-shaped hole, push rod 340,340 both ends of push rod point are provided between two fixed plates 330 It is not provided with locating shaft 341 and shaft 342, the shaft 342 is located in strip-shaped hole 332, and the locating shaft 341 may move into or move Locating slot 331 out.

Shaft 342 is always positioned in strip-shaped hole 332, and 340 opposing fixed plate 330 of push rod is rotated, needs to push load When object car body 300, rotating push rod 340, and move into locating shaft 341 in locating slot 331, push rod 340 and fixed plate 330 keep solid It is fixed, when without using push rod 340, locating shaft 341 is removed into locating slot 331, rotating push rod 340, push rod 340 is rotatable and places In on loading car body 300, using flexible, conveniently.

The working principle of the utility model is as follows:

Under original state, left side main car body 100 is horizontality and is located at threshold side, and right side main car body 100 is to erect State, two main car bodies 100 are mutually perpendicular to.

In use, left side main car body 100 is pushed into threshold side, then rotation right side main car body 100 to the main vehicle in left side Body 100 is (i.e. two main car bodies 100 are in 180 °) in same level, at this point, right side main car body 100 is located at the threshold other side, is carried Object car body 300 can be by being moved on the main car body 100 of right side, to achieve the purpose that sill on left side main car body 100.

When needing for other main car bodies 100 to connect with the main car body 100 in this trolley, then by lockplate 130 with Lock slots 141 and polarized plug 114 are matched with positioning jack 115, can make other main car bodies 100 and the master in this trolley Car body 100 is bolted together and keeps relatively fixed.

And when loading car body 300 is moved on the main car body 100 in this trolley by other main car bodies 100, carrier The unlock piece 310 of 300 bottom of body is contacted with the portion 133 that presses of lockplate 130, so that closing piece 132 is separated with lock slots 141, Its main car body 100 is separated with the main car body 100 in this trolley, meanwhile, the limit plate of 300 bottom of loading car body enters main car body Between the first gag lever post 161 and the second gag lever post 162 on 100, loading car body 300 is kept fixed with main car body 100 and can be with master Car body 100 is mobile.

When needing loading car body 300 to move on main car body 100, manual rotate driving handle 165 makes the second gag lever post 162 is mobile, and limit plate is detached from the limitation of the second gag lever post 162, and loading car body 300 can move axially on main car body 100.

The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.

Claims (9)

1. a kind of collapsible sill trolley excessively, including

Main car body, there are two and be movably connected by end, any main car body can be rotated relative to another main car body；

Connector is connected with two main car bodies respectively and two main car bodies can be made to be relatively fixed to predetermined angle；

Loading car body is located therein on a main car body and is movably connected with the main car body；

When two main car bodies turn in same plane, the carrier physical efficiency is moved to another master by a wherein main car body On car body；

The connector includes pull rod and tension spring, and pull rod has two and is movably connected respectively with two main car bodies, and tension spring is located at two and draws It is connected between bar and respectively with two pull rods, the tension spring can make two main car bodies be relatively fixed to predetermined angle.

2. one kind according to claim 1 is collapsible to cross sill trolley, it is characterised in that: one end of the pull rod is fixed with With the articulation piece of main car body articulated connection, positioning pipe is provided between two articulation pieces, the pull rod and tension spring are respectively positioned in positioning pipe, When the rotation of two main car bodies, the articulation piece energy relative positioning pipe it is mobile and be capable of fixing on positioning pipe.

3. one kind according to claim 1 is collapsible to cross sill trolley, it is characterised in that: in one end of a wherein main car body It is connected with lockplate, is installed with closing piece on the lockplate, one end of another main car body is provided with clamping block, the lock Determine to be provided with the lock slots that can be matched with closing piece on block.

4. one kind according to claim 3 is collapsible to cross sill trolley, it is characterised in that: the one of a wherein main car body End is installed with mounting base, and the lockplate and mounting base are articulated and connected, and Lock spring is provided in mounting base, Lock spring Both ends are contacted with mounting base and lockplate respectively, and the Lock spring returns back to lock state after lockplate can be made to rotate.

5. one kind according to claim 3 is collapsible to cross sill trolley, it is characterised in that: one end of the lockplate is upward It is formed by bending the portion of pressing, the loading vehicle bottom is provided with unlock piece, when loading car body is moved to another master by main car body When on car body, the unlock piece can contact with the portion of pressing and rotate lockplate.

6. one kind according to claim 1 is collapsible to cross sill trolley, it is characterised in that: in the front end of a wherein main car body It is provided with polarized plug, is correspondingly provided with positioning jack in another main car body rear end.

7. one kind according to claim 1 is collapsible to cross sill trolley, it is characterised in that: activity setting on the main car body There are two gag lever posts for separating and stretching out main car body surface, the upper end of gag lever post is provided with inclined-plane, the loading vehicle bottom setting There is limited block, when loading car body is mobile, limited block can be against on inclined-plane and make gag lever post movement, and limited block can be restricted to Between two gag lever posts, the driving handle for being connected with a wherein gag lever post and the gag lever post capable of being made mobile is provided on main car body.

8. one kind according to claim 1 is collapsible to cross sill trolley, it is characterised in that: the main car body includes two mutual Parallel and connected guide rod, loading car body two sides are provided with guide wheel, surround its surface on the guide wheel and be provided with guide groove, institute State that guide rod is located in guide groove and guide wheel can roll on guide rod.

9. one kind according to claim 1 is collapsible to cross sill trolley, it is characterised in that: the two sides pair of the loading car body Title is provided with fixed plate, and the locating slot extended in the same direction and strip-shaped hole are provided in fixed plate, is provided with push rod between two fixed plates, Push rod both ends are respectively arranged with locating shaft and shaft, and the shaft is located in strip-shaped hole, and the locating shaft may move into or out fixed Position slot.