CN216580305U - Tarpaulin folding and unfolding device and vehicle - Google Patents

Abstract

The utility model belongs to the technical field of auto parts, including a tarpaulin take up and expand device and assemble the vehicle of this kind of tarpaulin take up and expand device. This tarpaulin device of taking down exhibits includes: a fixing member; the guide rail is fixedly arranged opposite to the fixed part; the driving part is fixedly arranged opposite to the fixing part and comprises a driving end, and the driving end is configured to be capable of stretching and retracting back and forth along a direction parallel to the guide rail; the folding and unfolding component comprises a fixed end and a movable end which are opposite, the fixed end is arranged on the fixed component, and the movable end is arranged on the guide rail and is configured to slide along the guide rail in a reciprocating manner when the folding and unfolding component is driven by the driving end to be folded and unfolded to deform; and the tarpaulin is at least partially arranged on the folding and unfolding component and is configured to be synchronously folded and unfolded along with the folding and unfolding component when the folding and unfolding component is deformed. The utility model discloses a can effectively alleviate tarpaulin and receive and spread the weight of device, reduce tarpaulin cost and transportation energy consumption.

Description

Tarpaulin folding and unfolding device and vehicle

Technical Field

The utility model relates to the technical field of auto-parts, specifically provide a tarpaulin is received and is expanded device and assemble vehicle of this kind of tarpaulin is received and is expanded device.

Background

In the transportation of goods, in order to avoid the goods in the carriage from scattering or getting exposed to the sun and rain, the boxcar is often covered with tarpaulin. Taking an earth moving vehicle as an example, if earth and stones fall off in the driving process, the road traffic is seriously affected and great potential safety hazards exist, so related departments also forcibly require that the vehicle needs to be covered with tarpaulin during transportation. The covering of tarpaulin still is leading in the manual work at present, and this kind of fixed mode is not only wasted time and energy, and the tarpaulin is fixed insecure moreover, and it is not hard up easily to go the in-process.

Therefore, the prior art discloses a wagon tarpaulin capable of being automatically folded. The truck tarpaulin comprises a guide rail, a folding mechanism, a driving mechanism and two sets of chain transmission mechanisms, wherein the chain transmission mechanisms drive the end parts of the folding mechanisms to move in a reciprocating manner on the guide rail, so that the tarpaulin is extended and retracted. However, the tarpaulin has the disadvantages of complex structure, heavy weight, high cost, and long chain stroke during working, which results in high energy consumption. Therefore, there is an improvement in this solution.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems of complex structure, high cost, large weight and the like of the tarpaulin device on the current vehicle, the utility model provides a tarpaulin folding and unfolding device. This tarpaulin device of taking down exhibits includes: a fixing member; the guide rail is fixedly arranged opposite to the fixed part; a driving part fixedly arranged opposite to the fixing part and comprising a driving end configured to be capable of reciprocating and stretching along a direction parallel to the guide rail; the folding and unfolding component comprises a fixed end and a movable end which are opposite, the fixed end is installed on the fixed component, and the movable end is installed on the guide rail and is configured to slide along the guide rail in a reciprocating mode when the folding and unfolding component is driven by the driving end to be folded and unfolded; and the tarpaulin is at least partially arranged on the folding and unfolding component and is configured to be synchronously folded and unfolded along with the folding and unfolding component when the folding and unfolding component is deformed.

The utility model discloses in, the stiff end fixed mounting of exhibition part is on fixed part, and the expansion end can be installed on the guide rail with sliding. The driving end of the driving part can stretch out and draw back in a reciprocating mode along the direction parallel to the guide rail, the driving part can drive the folding and unfolding part to deform along the direction parallel to the guide rail through the driving end, and the folding and unfolding part drives the awning cloth to correspondingly unfold or fold up in the deformation unfolding or shrinking process. The utility model discloses a flexible drive structure has replaced present motor-chain structure to traditional tarpaulin exhibition structure is received and is redesigned, makes the structure of tarpaulin exhibition device received and releases can simplify, and then has effectively alleviateed the weight of tarpaulin exhibition device received and released, can effectively reduce tarpaulin cost and energy consumption, and new tarpaulin exhibition device received and released can make the tarpaulin launch or pack up more directly, high-efficiently.

In a preferred embodiment of the tarpaulin folding and unfolding apparatus described above, the folding and unfolding means includes: a plurality of end-to-end hinge units, each hinge unit comprising a first rod and a second rod, wherein the first rod and the second rod in the same hinge unit form a hinge joint at the hinge joint when being hinged, the first rod in the hinge unit is hinged with the second rod in the adjacent hinge unit and forms a hinge joint at the hinge joint, and the second rod in the hinge unit is hinged with the first rod in the adjacent hinge unit and forms a hinge joint at the hinge joint, so that any two adjacent hinge units are combined into a four-link folding and unfolding unit capable of folding and unfolding deformation; defining one of said hinge units at said fixed end of said foldable member as a first hinge unit and one of said hinge units at said movable end of said foldable member as a second hinge unit; and the guide units are arranged on the guide rails and connected with the corresponding hinge units, at least parts of the tarpaulin are fixed on the guide units, and the guide units are configured to be driven by the corresponding hinge units to slide along the guide rails in a reciprocating manner when the folding and unfolding component is folded and unfolded and deformed.

With the above configuration, any two adjacent hinge units can be combined to form one four-bar linkage folding and unfolding unit, which can be formed in a substantially diamond or rectangular shape and has the following characteristics: when the included angle between the first rod and the second rod in one hinge unit is changed, the other hinge unit connected with the first rod and the second rod is synchronously changed, at the moment, the shape of the four-bar folding and unfolding unit is changed, the length of the diagonal line of the corresponding diamond or rectangle is changed, and the size of the four-bar folding and unfolding unit is correspondingly changed. The hinge units in the preferred embodiment are connected end to form a plurality of four-bar linkage folding and unfolding units connected with each other. When the shape of one four-bar linkage folding and unfolding unit is changed, other four-bar linkage folding and unfolding units are deformed synchronously, so that the size of each four-bar linkage folding and unfolding unit along the direction of the guide rail is changed, and the folding and unfolding functions of the folding and unfolding component are realized.

In this preferred technical scheme, the stiff end position of taking up the exhibition part relatively fixed, the loose end can slide along the guide rail. When the driving end drives the four-connecting-rod folding and unfolding units to deform through reciprocating expansion, all the four-connecting-rod folding and unfolding units on the folding and unfolding component deform synchronously, and accordingly size changes of all the four-connecting-rod folding and unfolding units in the direction parallel to the guide rail are overlapped one by one. In this state, the four-bar linkage extending units on the extending and contracting part are simultaneously displaced and the displacement amount is larger at the position farther from the fixed end, and the displacement amount of the movable end in the extending and contracting part is the sum of the size change of the four-bar linkage extending and contracting units when being deformed.

In the preferred technical scheme, the telescopic deformation of the driving end can enable all the four-bar folding and unfolding units to change synchronously, and when the size change of all the four-bar folding and unfolding units is mutually overlapped along the direction of the guide rail, the telescopic stroke of the driving end is amplified. Therefore, the folding and unfolding component in the preferred technical scheme has a strong stroke amplification effect. Accordingly, the driving end in the preferred technical scheme can be designed to be smaller in size, so that the occupied space is reduced, the weight of the device is reduced, and the energy consumption is saved.

In the above-mentioned tarpaulin exhibition device's preferred technical scheme, the stiff end of exhibition part has multiple preferred installation fixed mode.

In a first mode, one end of the first rod in the first hinge unit is slidably mounted on the fixed part, and the other end of the first rod is hinged with the second rod in the adjacent hinge unit; one end of the second rod in the first hinge unit is slidably mounted on the fixed part, and the other end of the second rod in the first hinge unit is hinged with the first rod in the adjacent hinge unit; and the first rod and the second rod are hingedly connected.

Preferably, in the first hinge unit, a length of the first rod between the fixing part and the one kind of hinge point is equal to a length of the first rod between the one kind of hinge point and the second kind of hinge point, and a length of the second rod between the fixing part and the one kind of hinge point is equal to a length of the second rod between the one kind of hinge point and the second kind of hinge point.

Preferably, in the first hinge unit, a length of the first rod between the fixing part and the one kind of hinge point is smaller than a length of the first rod between the one kind of hinge point and the second kind of hinge point, and a length of the second rod between the fixing part and the one kind of hinge point is smaller than a length of the second rod between the one kind of hinge point and the second kind of hinge point.

In a second mode, one end of the first rod in the first hinge unit is hinged to the fixed part, and the other end of the first rod in the first hinge unit is hinged to the second rod in the adjacent hinge unit; one end of the second rod in the first hinge unit is hinged to the fixed part, and the other end of the second rod in the first hinge unit is hinged to the first rod in the adjacent hinge unit.

In the preferable technical scheme of the tarpaulin folding and unfolding device, the movable end of the folding and unfolding component has a plurality of preferable installation and fixing modes.

In a first mode, the first rod and the second rod in the second hinge unit are hingedly connected, and the second hinge unit is hingedly connected to the guide unit at the hinge point of one type in the second hinge unit.

In a second mode, the second hinge unit is connected with the guide unit, one end of the first rod in the second hinge unit is slidably mounted on the guide unit, and the other end of the first rod in the second hinge unit is hinged with the second rod in the adjacent hinge unit; one end of the second rod in the second hinge unit is slidably mounted on the guide unit, and the other end of the second rod in the second hinge unit is hinged with the first rod in the adjacent hinge unit; and the first rod and the second rod are hingedly connected.

In a preferred embodiment of the tarpaulin folding and unfolding apparatus described above, the guide unit has a plurality of guide units, and each of the guide units is connected to a corresponding one of the hinge units. Preferably, at least one of said guide units is hingedly connected to a corresponding said hinge unit at said type of hinge point in the hinge unit. Preferably, at least one of the guide units is connected to the corresponding hinge unit at the hinge points of the two types in the hinge unit, and the hinge points of the two types can slide relative to the guide unit within a predetermined range along the length direction of the guide unit when the foldable part is deformed in a foldable manner. Through foretell configuration, a plurality of guide unit can guide the exhibition direction of exhibition of receipts extension part better, play the better support to the tarpaulin simultaneously to guarantee that the tarpaulin is more smooth, expand and pack up regularly.

In a preferred technical scheme of the tarpaulin folding and unfolding device, a plurality of preferred connection modes are arranged between the driving end and the folding and unfolding component.

In a first mode, the driving end is connected with one hinge unit in the folding and unfolding component and is configured to drive the folding and unfolding component to be folded and unfolded and deformed through the hinge unit connected with the driving end when the folding and unfolding component extends and retracts in a reciprocating mode.

Preferably, the drive end is connected to the first hinge unit. With the above configuration, the driving end is mounted on the fixed member and can directly drive the first hinge unit. This configuration can facilitate the mounting of the driving part while effectively reducing the size of the driving end.

Further preferably, the driving end is hingedly connected to the first hinge unit at the type of hinge point in the first hinge unit.

Further preferably, the driving end is slidably connected to the first rod in the first hinge unit, and the driving end is configured to be capable of sliding relative to the first rod within a predetermined range during reciprocating extension and retraction in a direction parallel to the guide rail.

Further preferably, the driving end is slidably connected to the second rod in the first hinge unit, and the driving end is configured to be capable of sliding relative to the second rod within a predetermined range during reciprocating extension and retraction in a direction parallel to the guide rail.

In a second mode, the driving end is hinged to one of the guide units.

Preferably, the driving end is hinged to one of the guide units corresponding to the first hinge unit. With the above configuration, the driving end is mounted on the fixed member and can directly drive the guide unit. This configuration can facilitate the mounting of the driving part while effectively reducing the size of the driving end.

In a third mode, the tarpaulin folding and unfolding device comprises two driving parts, each driving part comprises one driving end, and the two driving ends are hinged with the same guiding unit respectively. Through the configuration, the driving ends act on different positions of the same guiding unit at the same time, and the guiding unit can be driven by more uniform driving force, so that the guiding unit can move stably along the guide rail conveniently, and the tarpaulin can be folded and unfolded stably.

In a preferred technical scheme of the tarpaulin folding and unfolding device, a tarpaulin framework is arranged between every two adjacent guide units. Through the configuration, the tarpaulin frame can enhance the structural stability between the guide units and better support the tarpaulin.

Preferably, the tarpaulin frame comprises: a stay bar; and the two ends of the connecting rod are respectively hinged with the support rod and the guide unit. Through above-mentioned ground configuration, the tarpaulin skeleton can make the tarpaulin cover more smoothly when the tarpaulin expandes, and the tarpaulin skeleton can make things convenient for the tarpaulin to fold regularly when the tarpaulin is accomodate to can effectively reduce the book damage or the wearing and tearing of tarpaulin.

The utility model also provides a vehicle, the vehicle includes: a carriage; and the tarpaulin folding and unfolding device according to any one of the preferable technical schemes is installed on the carriage.

In a preferred embodiment of the vehicle, the vehicle compartment includes a front panel, a left side panel, and a right side panel; the tarpaulin folding and unfolding device comprises two guide rails, the two guide rails are arranged on the left side plate and the right side plate respectively, and the fixing part is arranged on the front plate or a part of the front plate forms the fixing part. Through the configuration, the structure can be effectively simplified, and the quality of the whole vehicle is reduced.

Drawings

Preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural view of a first embodiment of the tarpaulin spreading and unfolding apparatus of the present invention when it is used for a vehicle;

fig. 2 is a schematic structural view of a tarpaulin folding and unfolding apparatus of the present invention at a certain point in a process of folding the tarpaulin in a first embodiment of the present invention when the tarpaulin folding and unfolding apparatus is used for a vehicle;

FIG. 3 is a schematic view showing a structure of a collapsible member in a first embodiment of the tarpaulin collapsing device of the present invention applied to a vehicle;

FIG. 4 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 5 is an enlarged schematic view of the structure at B in FIG. 1;

fig. 6 is a schematic structural view of a second embodiment of the tarpaulin folding and unfolding apparatus of the present invention when it is used for a vehicle;

fig. 7 is a schematic structural view of a third embodiment of the tarpaulin spreading and unfolding apparatus of the present invention when it is used for a vehicle;

fig. 8 is a schematic structural view of a fourth embodiment of the tarpaulin spreading and unfolding apparatus of the present invention when it is used for a vehicle;

fig. 9 is a schematic structural view of a fifth embodiment of the tarpaulin stretching apparatus of the present invention when the tarpaulin stretching apparatus is used for a vehicle.

List of reference numerals:

1. a carriage; 11. a front plate; 12. a left side plate; 13. a right side plate; 2. a tarpaulin folding and unfolding device; 21. a fixing member; 22. a guide rail; 23. a guide unit; 231. sliding and buckling; 24. a folding and unfolding component; 2411. a fixed end; 2412. a movable end; 242. a hinge unit; 242a, a first hinge unit; 242b, a second hinge unit; 2421. a first lever; 2422. a second lever; 2423. a type of hinge point; 2424. a second type of hinge point; 2425. a slider; 243. a four-bar linkage folding and unfolding unit; 25. a drive member; 251. a driving end; 252. a hinge joint buckle; 26. a tarpaulin frame; 261. a stay bar; 262. a connecting rod; 27. a sliding connection.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, unless otherwise explicitly stated or limited, the terms "assembled", "disposed", "connected", "relatively fixedly disposed", or "relatively fixedly disposed", are to be construed broadly in the description of the present invention, and may be, for example, fixedly connected, detachably connected, or integrally connected; either directly or indirectly through intervening media, or through the communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In order to solve the technical problems of complex structure, high cost, large quality and the like of the tarpaulin device on the vehicle at present, the utility model provides a tarpaulin folding and unfolding device 2.

This tarpaulin device 2 that takes up and expands includes: a fixing member 21; a guide rail 22, the guide rail 22 and the fixing part 21 are oppositely and fixedly arranged; a driving part 25, the driving part 25 being fixedly disposed opposite to the fixing part 21 and including a driving end 251, the driving end 251 being configured to be capable of reciprocating expansion and contraction in a direction parallel to the guide rail 22; the folding and unfolding component 24 comprises a fixed end 2411 and a movable end 2412 which are opposite, the fixed end 2411 is installed on the fixed component 21, and the movable end 2412 is installed on the guide rail 22 and is configured to slide back and forth along the guide rail 22 when the folding and unfolding component 24 is driven by the driving end 251 to be folded and unfolded; and a tarpaulin at least partially installed on the folding and unfolding component 24 and configured to be synchronously folded and unfolded with the folding and unfolding component 24 when the folding and unfolding component 24 is deformed in a folding and unfolding mode.

The utility model discloses a tarpaulin exhibition device can be used for on the vehicle, consequently the utility model also provides a vehicle. In one or more embodiments, the vehicle may be a dump truck. Alternatively, the vehicle may be a trailer, a muck truck or other suitable vehicle type. The tarpaulin folding and unfolding device of the utility model has a plurality of implementation modes when being used for vehicles.

Implementation mode one

Fig. 1 is a schematic structural diagram of a first embodiment of the tarpaulin folding and unfolding apparatus of the present invention when used in a vehicle, and fig. 2 is a schematic structural diagram of a certain point in the tarpaulin folding and unfolding process of the first embodiment of the tarpaulin folding and unfolding apparatus of the present invention when used in a vehicle. As shown in fig. 1 and 2, the vehicle (not shown in the figures) has a cabin 1, and the cabin 1 includes a front panel 11, a left side panel 12, a right side panel 13, a rear panel and a floor panel connected to each other, and an opening is formed above the floor panel for loading and unloading articles. In one or more embodiments, the front panel 11 is vertically higher in dimension than the left and right side panels 12, 13. Alternatively, the front panel 11 may have the same size in the vertical direction as the left and right side panels 12 and 13. Alternatively, the front plate 11 may also have other suitable structures. It is to be understood that the structure and the open form of the vehicle compartment 1 are not limited to the structure shown in fig. 1, and may be other suitable structures.

As shown in fig. 1 and 2, in one or more embodiments, the tarpaulin folding and unfolding apparatus 2 is detachably installed on the opening. It will be readily appreciated that if the left, right or rear side of the cabin 1 needs to be protected or covered by the tarpaulin device, the tarpaulin folding and unfolding device 2 may be installed at the left, right or rear side of the cabin accordingly. In one or more embodiments, the tarpaulin folding and unfolding apparatus 2 may be folded in a front-rear direction of the car 1 to open or cover the opening. Alternatively, the tarpaulin folding and unfolding apparatus 2 may be folded and unfolded in the left and right directions of the vehicle body 1 to open or cover the opening.

Fig. 3 is a schematic structural view of a folding and unfolding component in a first embodiment of the tarpaulin folding and unfolding apparatus of the present invention when used in a vehicle. As shown in fig. 1 to 3, in one or more embodiments, the tarpaulin folding and unfolding apparatus 2 includes a fixing part 21, a driving part 25, two guide rails 22, a folding and unfolding structure 24, a tarpaulin and a tarpaulin frame 26. In one or more embodiments, the fixed member 21 is fixedly coupled to the front panel 11 of the cabin 1. Alternatively, the fixing member 21 is integrally formed with the front plate 11. Alternatively, a portion of the front plate 11 directly forms the fixing member 21. In one or more embodiments, the stationary component 21 is a stationary plate. Alternatively, the fixing part 21 is a fixing frame, a fixing rod, or other suitable structure.

In one or more embodiments, as shown in fig. 1 and 2, two guide rails 22 are symmetrically disposed parallel to each other on both sides of the front plate 11. Alternatively, the guide rail 22 extends in the front-rear direction of the vehicle compartment 1 and is mounted outside the upper edges of the left and right side plates 12, 13 of the vehicle compartment 1. Alternatively, the guide rail 22 is installed at other suitable positions on the left and right side plates 12 and 13. Alternatively, the guide rails 22 are arranged in suspension on both sides of the car 1. In one or more embodiments, the number of guide rails 22 can be one, three, or other suitable number.

As shown in fig. 1 to 3, the extendable members 24 are provided in a direction parallel to the guide rails 22. In one or more embodiments, the stowing member 24 includes a plurality of end-to-end hinge units 242. Optionally, the deployment section 24 comprises 5 end-to-end hinge units 242. Alternatively, the number of hinge elements 242 in the deployment section 24 is 4, 6 or other suitable number. As shown in fig. 3, in one or more embodiments, each articulation unit 242 includes a first ram 2421 and a second ram 2422. In one or more embodiments, the first and second sticks 2421 and 2422 of the same hinge unit 242 are hingedly connected by a pin about which the first and second sticks 2421 and 2422, respectively, can freely rotate. Alternatively, the first and second bars 2421 and 2422 of the same hinge unit 242 may be hingedly connected through other suitable forms. For convenience of description, the hinge point of the first and second bars 2421 and 2422 in the same hinge unit 242 is defined as a type of hinge point 2423. In one or more embodiments, the first and second rams 2421 and 2422 may be equal in length, and the first and second rams 2421 and 2422 of the same articulation unit 242 may be hingedly coupled at a midpoint along the respective lengths. Alternatively, the first and second bars 2421 and 2422 of the same hinge unit 242 may be connected at other suitable positions.

In one or more embodiments, when two adjacent hinge units 242 are connected end to end, the first rod 2421 of one hinge unit 242 is hingedly connected to the second rod 2422 of the adjacent hinge unit 242 by a pin, and the second rod 2422 of the hinge unit 242 is hingedly connected to the first rod 2421 of the adjacent hinge unit 242 by a pin. It is easily contemplated that the first and second bars 2421 and 2422 of two adjacent hinge units 242 may be hingedly connected through other suitable forms. For convenience of description, a hinge point between adjacent hinge units 242 is defined as a second type hinge point 2424. That is, the first bars 2421 on the hinge unit 242 form second type hinge points 2424 at hinge joints with the second bars 2422 of the neighboring hinge unit 242, and the second bars 2422 on the hinge unit 242 also form second type hinge points 2424 at hinge joints with the first bars 2421 of the neighboring hinge unit 242.

As shown in fig. 3, any two adjacent hinge units 242 are combined into a four-bar linkage folding and unfolding unit 243 (shown by a shaded portion in fig. 3) capable of being folded and unfolded. In one or more embodiments, the first and second rods 2421, 2422 are equal in length, and the four-bar linkage folding and unfolding unit 243 formed by the adjacent hinge units 242 has a diamond shape. Alternatively, the first and second bars 2421 and 2422 may have unequal lengths, and the four-bar linkage folding and unfolding unit 243 formed by splicing the adjacent hinge units 242 may have a rectangular shape.

As shown in fig. 3, the deploying and retracting member 24 further includes a guide unit 23 connected to the hinge unit 242. In one or more embodiments, the guide unit 23 is a guide bar. Optionally, the guide bar is a straight bar. Alternatively, the guide bar is an arc bar, a folding bar or other shape matching the shape of the carriage. Alternatively, the guide unit 23 is a bar frame or other suitable structure. As shown in fig. 1-3, in one or more embodiments, the guide unit 23 can be provided in a plurality, with each guide unit 23 having a hinge unit 242 associated therewith. Alternatively, the number of guide units 23 is the same as the number of hinge units 242, and one guide unit 23 is mounted on each hinge unit 242. Alternatively, the number of the guide units 23 is smaller than the number of the hinge units 242, when there are a plurality of hinge units 242 between the adjacent guide units 23. In one or more embodiments, at least one guide element 23 of the plurality of guide elements 23 is hingedly coupled to a corresponding hinge element 242 at a type of hinge point 2423 of the hinge element 242. Optionally, at least one guide element 23 is connected to the corresponding articulation element 242 at an articulation point 2424 of the second type in the articulation element 242. Specifically, the second type hinge point 2424 of the hinge unit 242 is slidably connected with the corresponding guide unit 23. Alternatively, a sliding pin shaft is provided at the second type hinge point 2424 of the hinge unit 242, and a sliding groove matched with the sliding pin shaft is formed on the guide unit 23. The second type hinge point 2424 of the hinge unit 242 can slide in the sliding groove relative to the guide unit 23 when the extension part 24 is extended and deformed.

In one or more embodiments, the two ends of the guide unit 23 are respectively mounted on the two guide rails 22 by the sliders 231. It will be readily understood that the slider 231 may also be arranged on the rod of the guide unit 23, the ends of the guide unit 23 being located outside the two rails when the guide unit 23 is slidably assembled with the rails 22. In an alternative embodiment, the guide unit 23 clamps the guide rail 22 by a pair of rollers to achieve the sliding connection. Alternatively, the guiding unit 23 may also be directly slidably connected to the guiding rail 22 by other suitable means. In one or more embodiments, the guide unit 23 is disposed orthogonal to the guide rail 22. Alternatively, the guide unit 23 forms other suitable angles with the guide rail 22.

For convenience, one end of the foldable member 24 adjacent to the front plate 11 and connected to the fixed member 21 is defined as a fixed end 2411, and the other end away from the front plate 11 is defined as a movable end 2412. In one or more embodiments, one hinge unit 242 at the fixed end 2411 is defined as a first hinge unit 242a, and one hinge unit 242 at the movable end 2412 is defined as a second hinge unit 242 b. As shown in fig. 1-3, in one or more embodiments, a guide unit 23 is coupled to the second hinge unit 242b, and the guide unit 23 and the second hinge unit 242b form a movable end 2412 of the foldable member 24. The movable end 2412 has various specific connection modes. In one or more embodiments, the first and second rods 2421 and 2422 of the second hinge unit 242b are hingedly connected, and the guide unit 23 is hingedly connected to the second hinge unit 242b at a type of hinge point 2423 of the second hinge unit 242 b. Alternatively, the first and second sticks 2421 and 2422 of the second hinge unit 242b are hingedly connected, and one end of the first stick 2421 of the second hinge unit 242b is slidably mounted on the guide unit 23 and the other end is hingedly connected to the second stick 2422 of the adjacent hinge unit 242, and one end of the second stick 2422 of the second hinge unit 242b is slidably mounted on the guide unit 23 and the other end is hingedly connected to the first stick 2421 of the adjacent hinge unit 242. Specifically, one sliding pin is provided at the end of each of the first and second bars 2421 and 2422, and two sliding grooves are provided on the guide unit 23 to match the sliding pins on the first and second bars 2421 and 2422, respectively. Alternatively, there may be other suitable connections between the first bars 2421 and the guide unit 23 and between the second bars 2422 and the guide unit 23.

In one or more embodiments, the first hinge element 242a forms a fixed end 2411 of the deployment member 24. Fig. 4 is an enlarged schematic view of a structure at a in fig. 1. As shown in fig. 1, 2, and 4, in one or more embodiments of the first embodiment, the first and second levers 2421 and 2422 of the first hinge unit 242a are hingedly connected, the first and second levers 2421 and 2422 of the first hinge unit 242a are slidably connected to the front plate 11, respectively, and the first lever 2421 has the same length on both sides of the type of hinge point 2423 and the second lever 2422 has the same length on both sides of the type of hinge point 2423. Specifically, one slide member 2425 is provided at each of the rod ends of the first and second rods 2421 and 2422, and a slide link 27 matched with each slide pin shaft is provided at a corresponding position of the front plate 11. Alternatively, the first and second stems 2421 and 2422 may each be slidably coupled to the fixed member 21 via other suitable structures. At this time, a deformable triangular structure (which substantially corresponds to one half of the four-bar linkage deploying and retracting structure) is formed between the front plate 11 and the first and second levers 2421 and 2422 of the first hinge unit 242 a.

As shown in fig. 1-3, in one or more embodiments, the drive member 25 is fixed to the fixed member 21. Alternatively, the driving member 25 is fixed on the front plate 11. In some embodiments, the drive member 25 may also be disposed on the back plate. In one or more embodiments, the drive member 25 is an electromagnetic drive, in which case the drive end 251 of the drive member 25 can be an electric push rod. Alternatively, the driving member 25 comprises a hydraulic or pneumatic cylinder, the respective driving end 251 being a hydraulic or pneumatic rod. Alternatively, the drive member 25 is another suitable type of power unit and the drive end 251 is a rod or other suitable configuration. As shown in fig. 1-3, in one or more embodiments, the drive end 251 of the drive member 25 extends into the car 1 and is capable of reciprocating extension and retraction in a direction parallel to the guide rail 22.

Fig. 5 is an enlarged schematic view of the structure at B in fig. 1. As shown in fig. 5, in one or more embodiments of the first embodiment, the driving end 251 is connected to the first hinge unit 242a at a kind of hinge point 2423 after being extended into the vehicle compartment 1. Alternatively, the drive end 251 is connected to other suitable articulation units as desired. In one or more embodiments, the end of the driving end 251 is provided with a hinge button 252, and the hinge button 252 is hinge-coupled to the first and second rods 2421 and 2422 of the first hinge unit 242a by a pin. Alternatively, the driving end 251 is connected to the first hinge unit 242a at a type of hinge point 2423 by other suitable structure.

As shown in fig. 1 and 2, in one or more embodiments, the tarpaulin is at least partially fixed to the guide unit 23. Alternatively, one end of the tent cloth is fixed to the front panel 11, and the other end is fixed to the guide unit 23 connected to the second hinge unit 242 b. Alternatively, one end of the tent cloth is fixed to the guide unit 23 connected to the first hinge unit 242a, and the other end is fixed to the guide unit 23 connected to the second hinge unit 242 b. In one or more embodiments, the guiding units 23 may be fixedly connected to corresponding positions of the tarpaulin, respectively, so as to enhance the folding and unfolding effect of the tarpaulin. In one or more embodiments, the tarpaulin is made of waterproof and wear-resistant materials. Alternatively, the tarpaulin can be made of other suitable materials.

For example, in the case of unfolding the awning cloth, as shown in fig. 1, the driving end 251 is extended to push a type of hinge point 2423 in the first hinge unit 242a to move toward the rear of the car body 1 in a direction parallel to the guide rail 22, and at this time, the first rod 2421 and the second rod 2422 in the first hinge unit 242a slide with respect to the front panel 11, and the first hinge unit 242a is deformed. In the process, the other hinge units 242 connected to the first hinge unit 242a are simultaneously deformed to be contracted and expanded. Then, the guide units 23 connected to the hinge units 242 are slid along the guide rails 22 toward the rear of the vehicle compartment 1, thereby causing the tarpaulin connected to the guide units 23 to be gradually unfolded. In the first embodiment, since the triangular structure (half of the four-bar linkage folding and unfolding structure) is formed between the front plate 11 and the first and second rods 2421 and 2422 of the first hinge unit 242a, the deformation amount of the first hinge unit 242a in the guide direction is the same as the elongation amount of the driving end 251, the deformation amount of each of the other hinge units 242 connected to the first hinge unit 242a is twice the elongation amount of the driving end 251, and the displacement amount of the movable end 2412 of the folding and unfolding member 24 is the sum of the deformation amounts of the hinge units. Therefore, the stroke of the driving end 251 can be multiplied by the expanding member 24, and the effect of enlarging the stroke is obtained.

As shown in fig. 1 and 2, in one or more embodiments, in order to further improve the leveling of the tarpaulin when it is unfolded and the regularity when it is retracted, a tarpaulin frame 26 is provided between two adjacent guide units 23. In one or more embodiments, the canopy framework 26 includes struts 261 and links 262. In one or more embodiments, the shape of the strut 261 is the same as or similar to the guide unit 23. Optionally, the stay 261 is disposed in parallel with the guide unit 23. In one or more embodiments, the link 262 is disposed between the stay 261 and the adjacent guide unit 23. Alternatively, both ends of the link 262 are hingedly connected to the stay 261 and the guide unit 23, respectively. Alternatively, the tarpaulin frame 26 is other suitable structure. In the process of folding the tarpaulin, the distance between the adjacent guide units 23 becomes smaller, so that the connecting rods 262 rotate relative to the guide units 23, and the supporting rods 261 between the two guide units 23 are lifted or lowered, so that the tarpaulin is expanded or sunken, and the tarpaulin is folded and stored regularly along the expanded or sunken marks along with the gradual shortening of the folding and unfolding component 24.

Second embodiment

Fig. 6 is a schematic structural view of a second embodiment of the tarpaulin stretching device of the present invention when it is used for a vehicle. As shown in fig. 6, the difference from the first embodiment is that, in one or more embodiments of the second embodiment, the first hinge unit 242a forms the fixed end 2411 of the folding and unfolding means 24, the first and second levers 2421 and 2422 of the first hinge unit 242a are hinge-connected, the first and second levers 2421 and 2422 of the first hinge unit 242a are slidably connected to the front plate 11, respectively, and the length of the first lever 2421 between the front plate 11 and one type of hinge point 2423 is smaller than the length of the first lever 2421 between one type of hinge point 2423 and the adjacent second type of hinge point 2424, and the length of the second lever 2422 between the front plate 11 and one type of hinge point 2423 is smaller than the length of the second lever 2422 between one type of hinge point 2423 and the adjacent second type of hinge point 2424. At this time, a deformable triangular structure (which is less than half of the four-bar linkage deploying and retracting structure) is formed between the front plate 11 and the first and second levers 2421 and 2422 of the first hinge unit 242 a.

The above difference produces the following effects: taking the awning cloth as an example, when the driving end 251 pushes the first hinge unit 242a to deform, the deformation amount of the first hinge unit 242a along the guide rail direction is the same as the elongation amount of the driving end 251. Since the triangular structure formed between the front plate 11 and the first and second rods 2421 and 2422 of the first hinge unit 242a is less than half of the four-bar linkage deploying and retracting structure, the amount of deformation of each of the other hinge units 242 connected to the first hinge unit 242a is more than twice the stroke of the driving end 251. The retractor member 24 of this embodiment is therefore better able to amplify the travel of the driver end 251. Accordingly, the size of the driving part 25 can be further reduced, thereby further reducing the mass and space occupation.

Third embodiment

Fig. 7 is a schematic structural view of a third embodiment of the tarpaulin spreading device of the present invention when it is used for a vehicle. As shown in fig. 7, the difference from the first embodiment is that, in one or more embodiments of the third embodiment, the driving end 251 is slidably connected to the first rod 2421 of the first hinge unit 242a after being inserted into the vehicle compartment 1. Specifically, the first rod 2421 is provided with a sliding groove extending in a length direction of the first rod 2421, and a sliding pin shaft matched with the sliding groove is fixedly installed at an end of the driving end 251. The sliding pin shaft at the end of the driving end 251 can synchronously slide in the sliding groove when the driving end 251 is reciprocally extended and retracted in a direction parallel to the guide rail 22. Alternatively, the sliding connection between the driving end 251 and the first rod 2421 may be achieved in other suitable manners. It will be readily appreciated that the drive end 251 may also be slidably connected to the second rod 2422 of the first hinge unit 242a after it has been inserted into the vehicle compartment 1. The end of the driving end 251 has two driving arms symmetrically distributed, and the two driving arms are slidably connected to the first rod 2421 and the second rod 2422 of the first hinge unit 242a, so that one driving end can simultaneously push the first rod 2421 and the second rod 2422 of the first hinge unit 242a, the force on the folding and unfolding component 24 is balanced, and the folding and unfolding process is stable and reliable.

In one or more embodiments of the third embodiment, the tarpaulin folding and unfolding apparatus has two driving parts, and driving ends of the two driving parts are slidably connected with the first and second rods 2421 and 2422 of the first hinge unit 242a, respectively. It is easily conceivable that the number of driving parts to be fitted to the tarpaulin folding and unfolding apparatus may also be 3, 4 or other suitable numbers.

The above difference produces the following effects: when the driving end 251 drives the first rod 2421 and the second rod 2422 of the first hinge unit 242a to drive the folding and unfolding component 24 to be folded and unfolded, the driving end 251 only needs to generate a small stroke to drive the first rod 2421 and the second rod 2422 of the first hinge unit 242a to generate a large displacement amplitude, so that each connected hinge unit synchronously generates a large folding and unfolding deformation, and the folding and unfolding component 24 is driven to be folded and unfolded more quickly. Therefore, this embodiment can effectively enlarge the stroke of the driving end 251, improve the folding and unfolding efficiency of the folding and unfolding member 24, and further reduce the size and the space occupation of the driving member.

Embodiment IV

Fig. 8 is a schematic structural view of a fourth embodiment of the tarpaulin spreading device of the present invention when it is used for a vehicle. As shown in fig. 8, the difference from the first embodiment is that, in one or more embodiments of the fourth embodiment, the driving end 251 is hingedly connected to one guide unit 23 connected to the first hinge unit 242a after being inserted into the vehicle body 1. Specifically, the driving end 251 is hinged at the middle of the guide unit 23. Alternatively, the driving end 251 is hinged at one end of the guide unit 23. In one or more embodiments, the tarpaulin folding and unfolding apparatus 2 has two driving parts 25, and as shown in fig. 8, driving ends 251 of the two driving parts 25 are symmetrically and respectively hinged to ends of the guide unit 23. In some embodiments, the driving end 251 is hinged to any one of the guiding units 23 after extending into the car 1, and can also drive the folding and unfolding component 24 to effectively fold and unfold through telescopic deformation.

The above difference produces the following effects: the driving end 251 drives the folding and unfolding component 24 to be folded and unfolded and deformed through the guiding unit 23, so that the folding and unfolding of the tarpaulin are realized. Since the guide unit 23 has a large size, a larger assembly space is provided between the driving end 251 and the guide unit 23 during assembly, thereby reducing the assembly difficulty and the precision requirement of parts.

Fifth embodiment

Fig. 9 is a schematic structural view of a fifth embodiment of the tarpaulin stretching apparatus of the present invention when the tarpaulin stretching apparatus is used for a vehicle. As shown in fig. 9, the first hinge unit 242a forms a fixed end 2411 of the folding and unfolding member 24. The difference from the third or fourth embodiment is that, in one or more examples of the fifth embodiment, one end of the first lever 2421 in the first hinge unit 242a is hinge-mounted on the front plate 11 and the other end is hinge-connected to the second lever 2422 in the adjacent hinge unit 242, and one end of the second lever 2422 in the first hinge unit 242a is hinge-mounted on the front plate 11 and the other end is hinge-connected to the first lever 2421 in the adjacent hinge unit 242. In this embodiment, the first and second sticks 2421 and 2422 of the first hinge unit 242a are not directly connected to each other.

The above difference produces the following effects: this embodiment provides a new way of connection between the telescopic part 24 and the fixing part 21.

It will be readily appreciated that in some other embodiments or examples, the driving end 251 is connected to other suitable hinge units 242 or guide units 23 after extending into the compartment 1, which also enables the folding and unfolding of the tarpaulin folding and unfolding component. Furthermore, the utility model discloses can dispose a plurality of driver part 25, every driver part 25 all has a set of articulated unit 242 to use with it, promptly the utility model discloses a tarpaulin exhibition device realizes the exhibition of taking down exhibition part 24 through the combination of multiunit "driver part 25+ articulated unit 242".

So far, the technical solutions of the present invention have been described with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the present invention can also form various other suitable technical solutions by combining different embodiments and examples, and the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims (24)

1. The tarpaulin folding and unfolding apparatus is characterized by comprising:

a fixing member;

the guide rail is fixedly arranged opposite to the fixed part;

a driving part fixedly arranged opposite to the fixing part and comprising a driving end configured to be capable of reciprocating and stretching along a direction parallel to the guide rail;

the folding and unfolding component comprises a fixed end and a movable end which are opposite, the fixed end is installed on the fixed component, and the movable end is installed on the guide rail and is configured to slide along the guide rail in a reciprocating mode when the folding and unfolding component is driven by the driving end to be folded and unfolded; and

the tarpaulin is at least partially arranged on the folding and unfolding component and is configured to be synchronously folded and unfolded along with the folding and unfolding component when the folding and unfolding component is deformed.

2. The tarpaulin folding and unfolding apparatus of claim 1, wherein the folding and unfolding means comprises:

a plurality of end-to-end hinge units, each hinge unit comprising a first rod and a second rod, wherein the first rod and the second rod in the same hinge unit form a hinge joint at the hinge joint when being hinged, the first rod in the hinge unit is hinged with the second rod in the adjacent hinge unit and forms a hinge joint at the hinge joint, and the second rod in the hinge unit is hinged with the first rod in the adjacent hinge unit and forms a hinge joint at the hinge joint, so that any two adjacent hinge units are combined into a four-link folding and unfolding unit capable of folding and unfolding deformation; defining one of said hinge units at said fixed end of said foldable member as a first hinge unit and one of said hinge units at said movable end of said foldable member as a second hinge unit; and

the guiding units are installed on the guide rails and connected with the corresponding hinge units, at least parts of the tarpaulin are fixed on the guiding units, and the guiding units are configured to be driven by the corresponding hinge units to slide along the guide rails in a reciprocating mode when the folding and unfolding component is folded and unfolded and deformed.

3. The tarpaulin folding and unfolding apparatus of claim 2, wherein the first rod of the first hinge unit is slidably installed at the fixing member at one end thereof and is hinge-coupled to the second rod of the adjacent hinge unit at the other end thereof; one end of the second rod in the first hinge unit is slidably mounted on the fixed part, and the other end of the second rod in the first hinge unit is hinged with the first rod in the adjacent hinge unit; and the first rod and the second rod are hingedly connected.

4. The tarpaulin folding and unfolding apparatus of claim 3, wherein in the first hinge unit, a length of the first rod between the fixing part and the hinge point of the one kind is equal to a length of the first rod between the hinge point of the one kind and the hinge point of the second kind, and a length of the second rod between the fixing part and the hinge point of the one kind is equal to a length of the second rod between the hinge point of the one kind and the hinge point of the second kind.

5. The tarpaulin folding and unfolding apparatus of claim 3, wherein in the first hinge unit, a length of the first rod between the fixing part and the one type hinge point is less than a length of the first rod between the one type hinge point and the second type hinge point, and a length of the second rod between the fixing part and the one type hinge point is less than a length of the second rod between the one type hinge point and the second type hinge point.

6. The tarpaulin folding and unfolding apparatus of claim 2, wherein the first rod of the first hinge unit is hinge-coupled to the fixing member at one end thereof and is hinge-coupled to the second rod of the adjacent hinge unit at the other end thereof; one end of the second rod in the first hinge unit is hinged to the fixed part, and the other end of the second rod in the first hinge unit is hinged to the first rod in the adjacent hinge unit.

7. The tarpaulin folding and unfolding apparatus of claim 2, wherein the first rod and the second rod of the second hinge unit are hingedly connected, and the second hinge unit is hingedly connected to the guide unit at the one type hinge point of the second hinge unit.

8. The tarpaulin folding and unfolding apparatus of claim 2, wherein the second hinge unit is connected to the guide unit, and the first rod of the second hinge unit is slidably installed at one end of the guide unit and is hingedly connected to the second rod of the adjacent hinge unit at the other end thereof; one end of the second rod in the second hinge unit is slidably mounted on the guide unit, and the other end of the second rod in the second hinge unit is hinged with the first rod in the adjacent hinge unit; and the first rod and the second rod are hingedly connected.

9. The tarpaulin folding and unfolding apparatus of claim 2, wherein the guide unit has a plurality, and each of the guide units is connected to a corresponding one of the hinge units.

10. The tarpaulin folding and unfolding apparatus of claim 9, wherein at least one of the guide units is hinge-connected to the corresponding hinge unit at the hinge point of one type in the hinge unit.

11. The tarpaulin folding and unfolding apparatus of claim 9, wherein at least one of the guide units is connected to the corresponding hinge unit at the hinge points of the second type in the hinge unit, and the hinge points of the second type can slide relative to the guide unit within a predetermined range along a length direction of the guide unit when the folding and unfolding means is folded and unfolded.

12. The tarpaulin extending and retracting device of any of claims 2 to 11, wherein the driving end is connected to one of the hinge units of the extending and retracting member and configured to be able to drive the extending and retracting member to be extended and retracted by the hinge unit connected thereto when being extended and retracted reciprocally.

13. The tarpaulin folding and unfolding apparatus of claim 12, wherein the driving end is connected to the first hinge unit.

14. The tarpaulin folding and unfolding apparatus of claim 13, wherein the driving end is hingedly connected to the first hinge unit at the one type of hinge point in the first hinge unit.

15. The tarpaulin folding and unfolding apparatus of claim 13, wherein the driving end is slidably coupled to the first rod of the first hinge unit, and the driving end is configured to be relatively slidable with the first rod within a predetermined range during reciprocal expansion and contraction in a direction parallel to the guide rail.

16. The tarpaulin folding and unfolding apparatus of claim 13, wherein the driving end is slidably coupled to the second rod of the first hinge unit, and the driving end is configured to be capable of sliding relative to the second rod within a predetermined range during reciprocal expansion and contraction in a direction parallel to the guide rail.

17. An awning cloth folding and unfolding apparatus as claimed in any one of claims 2 to 11, wherein said driving end is hingedly connected to one of said guiding units.

18. The tarpaulin folding and unfolding apparatus of any of claims 9 to 11, wherein the driving end is hinge-connected to a corresponding one of the guide units of the first hinge unit.

19. The tarpaulin folding and unfolding apparatus of claim 18, wherein the tarpaulin folding and unfolding apparatus comprises two driving units, each driving unit comprises one driving end, and the two driving ends are respectively and hingedly connected to the same guiding unit.

20. The tarpaulin folding and unfolding apparatus of any of claims 2 to 11, wherein the tarpaulin folding and unfolding apparatus comprises two driving units, each driving unit comprises one driving end, and the two driving ends are respectively and hingedly connected to the same guiding unit.

21. The tarpaulin folding and unfolding apparatus of any one of claims 9 to 11, wherein a tarpaulin frame is provided between adjacent two of the guide units.

22. The tarpaulin folding and unfolding apparatus of claim 21, wherein the tarpaulin frame comprises:

a stay bar; and

and the two ends of the connecting rod are respectively hinged with the support rod and the guide unit.

23. A vehicle, characterized in that the vehicle comprises:

a carriage; and

a tarpaulin extending apparatus according to any of the preceding claims 1 to 22, said tarpaulin extending apparatus being installed on said vehicle cabin.

24. The vehicle of claim 23, characterized in that the compartment comprises a front panel, a left side panel and a right side panel; the tarpaulin folding and unfolding device comprises two guide rails, the two guide rails are arranged on the left side plate and the right side plate respectively, and the fixing part is arranged on the front plate or a part of the front plate forms the fixing part.

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