CN212797025U - Logistics trolley capable of lifting in self-adaption mode - Google Patents

Abstract

The utility model relates to a self-adaptive lifting logistics trolley, which comprises a chassis, a lifting bracket hinged on the chassis, a loading plate hinged on the upper end of the lifting bracket, and tension springs for driving the lifting bracket, wherein four corners of the chassis are respectively fixed with universal wheels supported on the ground, one end part of the chassis is also fixed with a hand support, two horizontal parallel guide slide bars are fixed in the hollow interior of the chassis, each guide slide bar is sleeved with a slide sleeve matched with the guide slide bar and forming a sliding pair, a horizontal cross bar is fixedly connected between the two slide sleeves, each pair of lifting bracket comprises a first support bar and a second support bar which are symmetrically, crossly and hinged and are in an X shape, one end of each tension spring is connected on the cross bar, the other end of each tension spring is fixed on the end part of the chassis, the tension springs are in a tensioning state, the lifting bracket is always in a contraction, the loading plate is always in a lifting state, so that the carrying personnel can take and place goods on the loading plate more easily and conveniently.

Description

Logistics trolley capable of lifting in self-adaption mode

Technical Field

The utility model relates to a technical field of logistics equipment, in particular to commodity circulation handcart that self-adaptation goes up and down.

Background

Logistics refers to the whole process of planning, implementing and managing raw materials, semi-finished products, finished products or related information from the production place of commodities to the consumption place of the commodities by the modes of transportation, storage, distribution and the like at the lowest cost in order to meet the requirements of customers, and is a system for controlling the raw materials, finished products and information, and the physical movement from supply to the hands of final consumers through the transfer and possession of various intermediate links is realized so as to realize the clear target of organization; modern logistics is a product of economic globalization and is an important service industry for promoting economic globalization, the Chinese logistics industry starts late, along with the rapid development of national economy, the Chinese logistics industry keeps a rapid growth speed, a logistics system is continuously perfect, and the industry is increasingly mature and standard in operation.

The handcart is an indispensable member in the logistics transportation tool, the handcart is a transportation vehicle pushed and pulled by people, which is the ancestor of all vehicles, although the technology of handcart material transportation is continuously developed, the handcart is still used as an important transportation tool, the handcart is widely applied in production and life because of low cost, simple maintenance, convenient operation and light dead weight, can work in places where the motor vehicle is inconvenient to use, and is very convenient to transport light and small articles in short distance, the bearing surface of the handcart in the prior art is generally closer to the ground, the transportation personnel need to bend back and forth and even crouch down to move the articles, particularly to transport the articles from the handcart to places at high places, the efficiency is low, the labor intensity is increased, and the waist of the transportation personnel can be damaged after a long time, is not good for health. Accordingly, there is a need for a necessary improvement to existing carts.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a commodity circulation handcart that self-adaptation goes up and down.

The specific contents are as follows: the utility model provides a commodity circulation handcart that self-adaptation goes up and down, includes the chassis, articulates lifting support on the chassis, articulates the extension spring that carries thing board, drive lifting support in lifting support upper end, characterized by:

the chassis is a hollow rectangular frame, universal wheels supported on the ground are fixed at four corners of the chassis, each universal wheel is provided with a manual brake, a hand support is fixed at one end of the chassis, two guide slide bars which are parallel to each other are fixed in the hollow interior of the chassis and parallel to the long edge of the chassis, two ends of each guide slide bar are respectively fixed at two ends of the chassis, a sliding sleeve which is matched with each guide slide bar and forms a sliding pair is sleeved on each guide slide bar, a horizontal cross bar is fixedly connected between the two sliding sleeves, the lifting support comprises two pairs which are symmetrically arranged from left to right, each pair of lifting support comprises a first supporting bar and a second supporting bar which are symmetrically, in a cross hinged mode, and in an X shape, the lower end of the first supporting bar is hinged on the chassis, the upper end of the first supporting bar is hinged on a sliding block, and the sliding block is clamped on a slide way arranged on the lower surface of the carrying plate, this slide is parallel with the direction slide bar, and the lower extreme of second bracing piece articulates on the slide sleeve that corresponds the side, and the upper end of second bracing piece articulates the lower surface that carries the thing board, and carries the upper surface of thing board and chassis parallel all the time, the extension spring at least including two of horizontal parallel arrangement, and the one end of every extension spring is connected on the horizontal pole, the other end is fixed on the chassis and is close to the tip of first bracing piece lower extreme articulated position, and the extension spring is in the tensioning state.

Preferably, the tension spring is hung on the cross rod through a hook fixed on the end corresponding to the tension spring, and the hook and the cross rod are detachably separated.

Preferably, the end part of the bottom frame is further fixed with a cantilever rod horizontally extending into the tension spring, and the length of the cantilever rod is not greater than the natural length of the tension spring.

Preferably, the middle part of horizontal pole be fixed with the sleeve parallel with the direction slide bar, be equipped with on the sleeve through threaded connection and along its radial locking screw who runs through the cover barrel wall, be fixed with the lead screw with the sleeve axle center on the chassis, the both ends of this lead screw are all fixed at the both ends of chassis through the revolute pair, and the one end of lead screw is worn out the corresponding tip of chassis and is coaxially fixed with rotatory hand wheel, this rotatory hand wheel is located the same tip of chassis with hand frame, the cover is equipped with rather than the driven screw thread section of thick bamboo of formation screw-nut that matches on the lead screw, this screw thread section of thick bamboo is cylindric with the sleeve axle center, and the external diameter of screw thread section of thick bamboo is less than telescopic.

Preferably, the outer surface of the threaded cylinder is provided with a limiting groove matched with the inner end of the locking screw.

Preferably, the handrail is in a U shape, two ends of the handrail are respectively sleeved in guide support sleeves rotatably connected with the side surface of the underframe in a penetrating manner, a positioning seat corresponding to the guide support sleeves is further fixed on the side surface of the underframe, and positioning grooves matched with the end parts of the handrail are formed in the positioning seat.

Preferably, the side surface of the positioning seat is further provided with a locking bolt which is connected through threads and penetrates into the positioning groove, the end part of the hand-held frame is provided with a positioning hole matched with the locking bolt, and the side surface of the underframe is further provided with a buckle clamp matched with the end part of the hand-held frame.

Preferably, the upper surface of the underframe is provided with a plurality of supporting cushion blocks with the same height, and the upper surface of the carrying plate is provided with an anti-skid layer with anti-skid protrusions.

The utility model has the advantages of: the utility model relates to a self-adaptive lifting logistics trolley, which ensures that a lifting bracket always tends to shrink through the tension of a tension spring, thereby ensuring that a carrying plate is always in a lifting state, a carrying person can take and place goods on the carrying plate without bending down greatly, the carrying plate is easy and convenient, and along with the increase or decrease of the goods on the carrying plate, the carrying plate can correspondingly decrease or increase along with the goods, thereby realizing self-adaptive lifting, facilitating the use of the carrying person, simultaneously, the tension spring can be disconnected with a cross rod according to the needs of the use occasion, namely, a hook is taken off from the cross rod, then the locking screw is rotated to be pressed in a limit groove of a thread cylinder, a sleeve and the thread cylinder are fixed together, thereby, a lead screw is rotated through a rotating hand wheel to drive the movement of the cross rod, the opening and closing of the lifting bracket can be controlled, the lifting control of the carrying plate is realized, so as to meet, meanwhile, the hand-held frame can be folded and buckled on the corresponding buckle clamp, and the carrying plate can be lowered to the minimum, so that the whole trolley is folded, the occupied space is reduced, and the carrying is convenient.

Drawings

Fig. 1 is a schematic perspective view of an adaptive lifting/lowering logistics trolley (in an operating state);

FIG. 2 is an enlarged view of A in FIG. 1;

FIG. 3 is a perspective view of an adaptive lift logistics cart (collapsed state);

FIG. 4 is a front view of FIG. 1;

FIG. 5 is a bottom view of FIG. 4;

FIG. 6 is a front sectional view of the slider mounted on the slide of the carrier plate;

FIG. 7 is a cross-sectional view taken along line B-B of FIG. 6;

FIG. 8 is a front sectional view of the end of the handrail mounted on the positioning seat;

in the figure: 11. the anti-skid device comprises a base frame, 12 universal wheels, 13 fastening clips, 14 supporting cushion blocks, 15 guiding slide rods, 16 screw rods, 17 threaded cylinders, 171 limiting grooves, 18 tension springs, 19 cross rods, 20 hooks, 21 sliding sleeves, 22 first supporting rods, 23 second supporting rods, 24 handrails, 241 positioning holes, 25 carrying plates, 26 anti-skid layers, 27 guiding supporting sleeves, 28 positioning seats, 281 positioning grooves, 29 locking bolts, 30 sleeves, 31 locking screws, 32 rotating hand wheels, 33 sliding ways, 34 lifting rods and 35 sliding blocks.

Detailed Description

In the first embodiment, referring to fig. 1 to 8, a self-adaptive lifting logistics trolley comprises a base frame, a lifting support hinged to the base frame, a carrying plate hinged to the upper end of the lifting support, and a tension spring for driving the lifting support;

the chassis is a hollow rectangular frame, universal wheels supported on the ground are fixed at four corners of the chassis, each universal wheel is provided with a manual brake, a hand support is fixed at one end of the chassis, two guide slide bars which are parallel to each other are fixed in the hollow interior of the chassis and parallel to the long edge of the chassis, two ends of each guide slide bar are respectively fixed at two ends of the chassis, a sliding sleeve which is matched with each guide slide bar and forms a sliding pair is sleeved on each guide slide bar, a horizontal cross bar is fixedly connected between the two sliding sleeves, the lifting support comprises two pairs which are symmetrically arranged from left to right, each pair of lifting support comprises a first supporting bar and a second supporting bar which are symmetrically, in a cross hinged mode, and in an X shape, the lower end of the first supporting bar is hinged on the chassis, the upper end of the first supporting bar is hinged on a sliding block, and the sliding block is clamped on a slide way arranged on the lower surface of the carrying plate, this slide is parallel with the direction slide bar, and the lower extreme of second bracing piece articulates on the slide sleeve that corresponds the side, and the upper end of second bracing piece articulates the lower surface that carries the thing board, and carries the upper surface of thing board and chassis parallel all the time, the extension spring at least including two of horizontal parallel arrangement, and the one end of every extension spring is connected on the horizontal pole, the other end is fixed on the chassis and is close to the tip of first bracing piece lower extreme articulated position, and the extension spring is in the tensioning state. The pulling force through the extension spring makes lifting support be in the trend of shrink all the time to the messenger carries the thing board and is in the state of lifting all the time, and the porter need not to bow by a wide margin and can get on carrying the thing board and put the goods, and is light convenient.

The tension spring is hung on the cross rod through a hook fixed on the end corresponding to the tension spring, and the hook and the cross rod are detachably separated. The hook can disconnect the tension spring from the cross rod according to the use requirement, and the acting force of the tension spring on the lifting support is relieved.

The end part of the bottom frame is also fixed with a cantilever rod horizontally extending into the tension spring, and the length of the cantilever rod is not more than the natural length of the tension spring. After the tension spring is disconnected with the cross rod, the tension force of the tension spring disappears and the tension spring restores to the natural length, and the tension spring is supported through the ram, so that the tension spring is prevented from drooping to influence use.

The middle part of horizontal pole be fixed with the sleeve parallel with the direction slide bar, be equipped with on the sleeve through threaded connection and along its radial locking screw who runs through the cover barrel wall, be fixed with the lead screw with the same axle center with the sleeve on the chassis, the both ends of this lead screw are all fixed at the both ends of chassis through the revolute pair, and the one end of lead screw is worn out the corresponding tip and the coaxial rotatory hand wheel that is fixed with of chassis, this rotatory hand wheel is located the same tip of chassis with hand frame, the cover is equipped with rather than the driven screw thread section of thick bamboo of formation screw-nut that matches on the lead screw, this screw thread section of thick bamboo is cylindric with the same axle center with the sleeve, and the external diameter of screw thread section of thick bamboo is less than telescopic internal diameter, the surface of screw. Can be according to the needs of use occasion, with extension spring and horizontal pole disconnection, be about to get in touch and take off from the horizontal pole, remove the effort of extension spring to lifting support, then rotate a screw thread section of thick bamboo to telescopic inside, make its roof pressure at the spacing inslot of a screw thread section of thick bamboo through rotating locking screw, make sleeve and screw thread section of thick bamboo fixed together, thereby the accessible is rotatory hand wheel and is rotated the lead screw with the removal of drive horizontal pole, can independently control opening and shutting of lifting support, realize carrying the lifting control of thing board, in order to satisfy the user demand.

The hand frame is U-shaped, two ends of the hand frame are respectively sleeved in guide support sleeves rotatably connected with the side surface of the underframe in a penetrating manner, positioning seats corresponding to the guide support sleeves are further fixed on the side surface of the underframe, and positioning grooves matched with the end parts of the hand frame are formed in the positioning seats. The side surface of the positioning seat is also provided with a locking bolt which is connected through threads and penetrates into the positioning groove, the end part of the hand-held frame is provided with a positioning hole matched with the locking bolt, and the side surface of the underframe is also provided with a buckle clamp matched with the end part of the hand-held frame. During the use, the tip of handrail inserts in the constant head tank of positioning seat to run through the locating hole of handrail tip through the locking bolt, realize fixing between handrail and the positioning seat, can be through the whole chassis of handrail push-and-pull, when not using, can break away from the positioning seat with the tip of handrail, support the cover through rotating the direction, make the tip lock of handrail press on the buckle clamp, realize the folding of handrail, make things convenient for carrying and the transfer of whole handcart.

The upper surface of the bottom frame is provided with a plurality of supporting cushion blocks with the same height, and the upper surface of the carrying plate is provided with an anti-skid layer with anti-skid protrusions. Increase the frictional force between goods and the year thing board through the skid resistant course, increase the stability in the handling, avoid the goods to slide from carrying the thing board easily and take off.

The utility model discloses a use and principle:

the utility model relates to a commodity circulation handcart that self-adaptation goes up and down, the pulling force of extension spring is acted on the horizontal pole to drive the swing of second bracing piece, make the lifting support be in the trend of shrink all the time, thereby make to carry the thing board to be in lifting state all the time, the porter need not to bow greatly and can get on carrying the thing board and put the goods, light and convenient, and along with the increase or reduction of goods on carrying the thing board, when the pressure that carries the thing board and receives increases or reduces, carry the thing board and can reduce or rise along with it correspondingly, realize self-adaptation goes up and down, facilitate the use of porter, also can be according to the needs of use occasion simultaneously, the extension spring with the horizontal pole disconnection, be about to get off the couple from the horizontal pole, remove the effort of extension spring to the lifting support, then rotate the screw thread section of thick bamboo to telescopic inside, make its roof pressure press in the spacing ins, make sleeve and thread cylinder together fixed, thereby the rotatory hand wheel of accessible rotates the removal of lead screw in order to drive the horizontal pole, can independently control opening and shutting of lifting support, realize carrying the lifting control of thing board, in order to satisfy the use needs, and simultaneously, during the use, the tip of handrail inserts in the constant head tank of positioning seat, and run through the locating hole of handrail tip through the locking bolt, realize fixing between handrail and the positioning seat, can be through the whole chassis of handrail push-and-pull, when not using, can break away from the positioning seat with the tip of handrail, through rotating the direction support cover, make the tip withhold of handrail on the buckle clamp, realize the folding of handrail fixed, make things convenient for the folding of whole handcart, reduce the occupation in space, conveniently carry.

Claims (8)

1. The utility model provides a commodity circulation handcart that self-adaptation goes up and down, includes the chassis, articulates lifting support on the chassis, articulates the extension spring that carries thing board, drive lifting support in lifting support upper end, characterized by:

the chassis is a hollow rectangular frame, universal wheels supported on the ground are fixed at four corners of the chassis, each universal wheel is provided with a manual brake, a hand support is fixed at one end of the chassis, two guide slide bars which are parallel to each other are fixed in the hollow interior of the chassis and parallel to the long edge of the chassis, two ends of each guide slide bar are respectively fixed at two ends of the chassis, a sliding sleeve which is matched with each guide slide bar and forms a sliding pair is sleeved on each guide slide bar, a horizontal cross bar is fixedly connected between the two sliding sleeves, the lifting support comprises two pairs which are symmetrically arranged from left to right, each pair of lifting support comprises a first supporting bar and a second supporting bar which are symmetrically, in a cross hinged mode, and in an X shape, the lower end of the first supporting bar is hinged on the chassis, the upper end of the first supporting bar is hinged on a sliding block, and the sliding block is clamped on a slide way arranged on the lower surface of the carrying plate, this slide is parallel with the direction slide bar, and the lower extreme of second bracing piece articulates on the slide sleeve that corresponds the side, and the upper end of second bracing piece articulates the lower surface that carries the thing board, and carries the upper surface of thing board and chassis parallel all the time, the extension spring at least including two of horizontal parallel arrangement, and the one end of every extension spring is connected on the horizontal pole, the other end is fixed on the chassis and is close to the tip of first bracing piece lower extreme articulated position, and the extension spring is in the tensioning state.

2. The adaptive lift logistics cart of claim 1 wherein: the tension spring is hung on the cross rod through a hook fixed on the end corresponding to the tension spring, and the hook and the cross rod are detachably separated.

3. The adaptive lift logistics cart of claim 2 wherein: the end part of the bottom frame is also fixed with a cantilever rod horizontally extending into the tension spring, and the length of the cantilever rod is not more than the natural length of the tension spring.

4. The adaptive lift logistics cart of claim 3 wherein: the middle part of horizontal pole be fixed with the sleeve parallel with the direction slide bar, be equipped with on the sleeve through threaded connection and along its radial locking screw who runs through the cover barrel wall, be fixed with the lead screw with the sleeve axle center on the chassis, the both ends of this lead screw are all fixed at the both ends of chassis through the revolute pair, and the one end of lead screw is worn out the corresponding tip and the coaxial rotatory hand wheel that is fixed with of chassis, this rotatory hand wheel is located the same tip of chassis with hand frame, the cover is equipped with rather than the driven screw thread section of thick bamboo of formation screw-nut that matches on the lead screw, this screw thread section of thick bamboo is cylindricly with the sleeve axle center, and the external diameter of screw thread section of thick bamboo is.

5. The adaptive lift logistics cart of claim 4 wherein: the outer surface of the threaded cylinder is provided with a limiting groove matched with the inner end of the locking screw.

6. The adaptive lift logistics cart of claim 1 wherein: the hand frame is U-shaped, two ends of the hand frame are respectively sleeved in guide support sleeves rotatably connected with the side surface of the underframe in a penetrating manner, positioning seats corresponding to the guide support sleeves are further fixed on the side surface of the underframe, and positioning grooves matched with the end parts of the hand frame are formed in the positioning seats.

7. The adaptive lift logistics cart of claim 6 wherein: the side surface of the positioning seat is also provided with a locking bolt which is connected through threads and penetrates into the positioning groove, the end part of the hand-held frame is provided with a positioning hole matched with the locking bolt, and the side surface of the underframe is also provided with a buckle clamp matched with the end part of the hand-held frame.

8. The adaptive lift logistics cart of claim 1 wherein: the upper surface of the bottom frame is provided with a plurality of supporting cushion blocks with the same height, and the upper surface of the carrying plate is provided with an anti-skid layer with anti-skid protrusions.

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