CN115556809A - Multifunctional carrying device - Google Patents

Abstract

The invention discloses a multifunctional carrying device, which comprises a plurality of supporting components and two carrying plates which are hinged with each other; the supporting assembly is detachably arranged on the two carrying plates and is used for supporting the two carrying plates; two carry thing board and can expand each other and the lock, and, two carry the mutual lock back of thing board, form between the two and accomodate the space, support assembly dismantles the back can accomodate in accomodate the space. The two carrying plates are hinged together, can be used as a carrying surface or a table top of the flat car after being unfolded, and can be used as the flat car or the table by matching with the corresponding supporting component. In addition, after the two carrying plates are buckled, a containing space is formed between the two carrying plates, and like a suitcase, the supporting component can be contained in the containing space, so that the occupied space is reduced, and the trunk and other articles in the trunk cannot be polluted when the portable luggage carrier is placed in the trunk of a vehicle.

Description

Multifunctional carrying device

Technical Field

The invention relates to a carrying device, in particular to a multifunctional carrying device.

Background

The flatbed is the instrument that is used for push-and-pull transport goods among people's daily life, and it can play convenient, the effect of province. However, the conventional flat car is inconvenient to store and needs to occupy a large storage space when not in use. For this reason, some technologies have improved the flatbed, and utility model patent like application number 200820017627.8 discloses a multi-functional flatbed, and this flatbed is connected with parts such as fixed pulley and directive wheel below handlebar, mesa, the mesa, and its handlebar can be folded below the mesa, reduces occupation space, convenient storage. However, this technique has a problem in that the size of the deck of the flatbed is fixed, and the flatbed cannot be adjusted according to the actual size of the article. In addition, the wheels of the flat car cannot be stored and are exposed outside, so that a certain storage space is occupied; in addition, since the wheels of the flat car are contaminated with various foreign materials when the flat car is operated on the ground, the foreign materials on the wheels easily contaminate surrounding objects when the flat car is stored.

Disclosure of Invention

The invention aims to solve the problems and provides a multifunctional carrying device which can be used as a flat car and a table and is convenient to store.

The purpose of the invention is realized by the following technical scheme: a multifunctional carrying device comprises a plurality of supporting components and two carrying plates which are hinged together; the supporting component is detachably arranged on the two carrying plates and is used for supporting the two carrying plates; two carry the thing board and can expand each other and the lock, and, two carry the mutual lock back of thing board, form between the two and accomodate the space, the supporting component dismantle the back can accomodate in the space.

Furthermore, a plurality of inserting holes are formed in the carrying plate, the inserting holes incline to the edge of the carrying plate from top to bottom, and an acute angle alpha formed between the central axis of each inserting hole and the surface of the carrying plate is 60-88 degrees; the supporting component is arranged on the carrying plate through the inserting hole, so that the supporting component inclines towards the edge direction of the carrying plate from top to bottom.

The vertical projection of the central axis of the receiving hole is coincident with the angle bisector of the corner of the carrying plate.

The supporting component is a caster wheel component; the caster wheel component is obliquely provided with an oblique head inserting head, the oblique direction of the oblique head inserting head is matched with the oblique direction of the inserting hole, so that the oblique head inserting head can be inserted into the inserted hole and extend towards the outer side of the carrier plate.

The multifunctional carrying device further comprises a pull rod assembly, at least one of the carrying plates is provided with an inserted assembly, the pull rod assembly is detachably connected with the inserted assembly, and the pull rod assembly can be accommodated in the accommodating space after being detached.

The pull rod assembly comprises a pull rod and a scissor hook plugging assembly connected with the lower end of the pull rod through a universal rotary connecting structure; the scissors hook plug assembly is detachably connected with the plug assembly, and the pull rod and the scissors hook plug assembly can both rotate relative to the universal rotating connection structure.

The supporting component is a table leg component; the upper end of the leg component is inserted into the inserting hole, so that the leg component extends from top to bottom to the outer side of the carrying plate.

The table leg assembly comprises table legs, a foot base and a screw rod fisheye joint bearing; the foot seats are connected with the table legs through the screw rod fisheye joint bearing, and the foot seats can do universal swing relative to the screw rod fisheye joint bearing.

The table leg assembly further comprises a claw disc, wherein the claw disc is detachably mounted on the screw rod fisheye joint bearing and can swing universally on the screw rod fisheye joint bearing.

The object carrying plate is provided with a buckle assembly, and the buckle assembly is used for locking the two object carrying plates after the two object carrying plates are mutually buckled.

Compared with the prior art, the method has the following beneficial effects:

(1) The two carrying plates are hinged together, can be used as a carrying surface or a table top of the flat car after being unfolded, and can be used as the flat car or the table by matching with the corresponding supporting component. In addition, after the two carrying plates are buckled, a containing space is formed between the two carrying plates, and the supporting component can be contained in the containing space like a suitcase, so that the occupied space is reduced, and the trunk and other articles in the trunk cannot be dirtied when the luggage rack is placed in the trunk of a vehicle.

(2) The receiving holes are formed in the carrying plate, and the trolley can be quickly changed into a flat car or a table by only inserting the caster wheel assemblies or the table leg assemblies into the receiving holes, so that the trolley is convenient and quick to install.

(3) The inserting holes are inclined from top to bottom to the edge of the carrying plate along the angular bisector direction of the corners of the carrying plate, so that the contact points of the caster assemblies or the table leg assemblies and the ground can be closer to the outer side of the vertical projection of the carrying plate and even exceed the width of the carrying plate, the carrying device can be more stable, and the stability of the carrying device can be ensured even if the distance between the carrying plate and the ground is increased. In addition, because the caster wheel component or the table leg component is inserted into the carrying plate in an outward inclined way, the carrying plate cannot slide downwards, and the stability of the carrying device can be ensured even if the carrying weight is increased.

(4) The wheel fork of the caster wheel assembly is provided with the thrust bearing and the deep groove ball bearing, so that the caster wheel assembly can bear larger load capacity while having a rotating function, and the caster wheel assembly has higher structural stability.

(5) According to the invention, the lower end of the pull rod assembly is connected with the scissors hook plugging assembly, the scissors hook plugging assembly is provided with the first hook and the second hook which are hinged together in a crossed manner, the whole pull rod assembly can be quickly connected to the carrying plate through the first hook and the second hook, and the pull rod assembly can move more conveniently.

(6) According to the pull rod assembly, the scissor hook plugging assembly is connected with the pull rod through the universal rotary connecting structure, so that the pull rod can swing left and right by taking the second rotary shaft screw on the universal rotary connecting structure as a fulcrum, and can swing up and down by taking the first rotary shaft screw on the universal rotary connecting structure as a fulcrum, and the practicability of the pull rod assembly is greatly improved.

(7) The screw rod fisheye joint bearing in the table leg assembly can rotate and swing on the foot base, so that the foot base can do universal swing relative to a screw rod of the screw rod fisheye joint bearing.

(8) The table leg assembly is also provided with the claw disc which can swing in a universal mode, when the table leg assembly meets soft ground such as muddy ground, the claw disc can be attached to the ground, and the claw disc can provide large supporting force on the soft ground due to the fact that the area of the claw disc is large, so that the table leg assembly is more stable when being used as a table.

Additional features of the present application will be set forth in part in the description which follows. Additional features of some aspects of the present application will be apparent to those of ordinary skill in the art in view of the following description and accompanying drawings, or in view of the production or operation of the embodiments. The features disclosed in this application may be realized and attained by practice or use of various methods, instrumentalities and combinations of the specific embodiments described below.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. Like reference symbols in the various drawings indicate like elements. Wherein the content of the first and second substances,

fig. 1 is a structural view after the storage of the present invention.

Fig. 2 is a schematic view of the support assembly of the present invention being accommodated in the accommodating space.

Fig. 3 is a block diagram of the present invention when assembled into a small flat car.

Fig. 4 is a structural view of the present invention when assembled into a large flat car.

Fig. 5 is a first perspective view of the caster assembly of the present invention.

Fig. 6 is a second perspective view of the caster assembly of the present invention.

Fig. 7 is a cross-sectional view taken at a-a in fig. 6.

Fig. 8 is a structural view of the wheel fork of the present invention.

Fig. 9 is a sectional view taken at B-B in fig. 8.

FIG. 10 is a cross-sectional view of the skew head insertion head of the present invention inserted into a receiving hole.

Figure 11 is a schematic view of a bisector of a corner of a carrier plate.

Fig. 12 is a view showing the angle between the central axis of the receiving hole and the angle bisector of the corner of the carrier plate.

Fig. 13 is a structural view of the tie rod assembly of the present invention.

Fig. 14 is a structural view of a drawbar of the present invention.

FIG. 15 is a block diagram of the connection of the housing of the present invention to a gimbaled rotating linkage.

Fig. 16 is a structural view of the housing of the present invention.

Fig. 17 is a structural view showing the hinge of the first hook and the second hook according to the present invention.

Fig. 18 is a schematic structural diagram of the plugged component of the present invention.

Fig. 19 is an enlarged schematic view at a in fig. 4.

Fig. 20 is a first perspective view of the present invention assembled into a table.

Fig. 21 is a second perspective view of the present invention assembled into a table.

Figure 22 illustrates a view of the table leg assembly of the present invention.

Fig. 23 is a structural view of the screw rod fisheye joint bearing of the invention mounted on a foot stool.

Fig. 24 is a schematic structural view of a screw rod fisheye joint bearing and a foot seat of the invention.

Fig. 25 is a structural view of the screw rod fisheye joint bearing of the present invention with a claw disk and a ball nut mounted thereon.

Fig. 26 is a structural view of a feed screw fisheye joint bearing, a foot seat, a claw disc and a ball nut of the invention.

Figure 27 illustrates the table leg assembly of the present invention mounted on the carrier plate.

Fig. 28 is a block diagram of the corner connector of the present invention.

The reference numbers in the above figures refer to: 1-carrying plate, 2-receiving hole, 3-lifting handle, 4-buckle component, 5-receiving component, 6-table leg component, 61-ball nut, 62-screw rod fisheye joint bearing, 63-foot seat, 64-non-slip pad, 65-inserting head, 66-boss, 67-sphere, 68-mounting groove, 69-concave sphere, 610-bottom hole, 611-knurl, 612-table leg large tube, 613-table leg small tube, 614-pipe sleeve, 615-matching groove, 616-positioning groove, 617-positioning hoop, 618-positioning clamping bean, 619-clamping bean positioning hole, 620-non-slip clamping bean, 622-locking bolt, 623-claw disk, 624-sharp corner, 625-strip hole, 626-rotating shaft, 7-caster component, 72-eccentric head inserting head, 73-wheel fork, 74-wheel, 75-cushion pad, 76-screw positioning hole, 77-screw, 78-thrust bearing, 79-deep groove, 710-wheel fork end cap, 711-thrust bearing mounting seat, 713-guide boss, 714-guide groove, 715-deep groove ball bearing mounting seat, 716-set screw, 717-mounting seat, 8-pull rod assembly, 82-universal rotary connection structure, 83-pull rod, 84-sinking platform, 85-hook insertion hole, 86-hook member, 87-pull handle, 88-length positioning clamping bean, 89-pull rod large tube, 810-positioning hole, 811-thick pipe sleeve, 812-pull rod small tube, 813-thrust positioning clamping bean, 814-rotating shaft, 815-rotating shaft receiving socket, 816-sliding gasket, 817-rotary connector, 818-universal connecting shaft, 819-scissors hook plug assembly, 820-housing, 821-through hole, 822-first hook, 823-second hook, 824-pressing part, 826-spring, 827-connecting shaft, 828-first rotating shaft screw, 829-second rotating shaft screw, 830-steel shaft, 831-scissors hook, 9-angle connecting piece, 10-connecting bolt.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that if the terms "first", "second", etc. are used in the description and claims of this application and in the above-described drawings, they are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, if the terms "comprise" and "have" and any variations thereof are referred to, it is intended to cover non-exclusive inclusions, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, if the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", etc. are referred to, their indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used in other meanings besides orientation or positional relationship, for example, the term "upper" may also be used in some cases to indicate a certain attaching or connecting relationship. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, in this application, the terms "mounted," "disposed," "provided," "connected," "sleeved," and the like should be construed broadly if they are referred to. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Example 1

The embodiment discloses a multifunctional carrying device which comprises a plurality of supporting components and two carrying plates 1 which are hinged with each other. The supporting component is detachably arranged on the two object carrying plates 1 and is used for supporting the two object carrying plates 1. Specifically, two carry articulated elements such as hinge between the thing board 1 and articulate together to make two carry thing board 1 can the mutual rotation, two carry thing board 1 promptly and can expand at same horizontal plane, also can overlap the lock together from top to bottom.

The two carrying plates 1 are used for carrying articles, and when the two carrying plates 1 are buckled together, the surface of the carrying plate 1 is used as a small carrying table surface. After two year thing boards 1 expand, adopt connecting bolt 10 fixed with two year thing boards 1, two year thing boards 1 then form a large-scale thing mesa this moment, can select to expand or the lock uses two year thing boards 1 according to quantity, the weight of article.

In addition, the circumferential edges of the two carrying plates 1 are provided with flanges, so that after the two carrying plates 1 are mutually buckled, a containing space is formed between the two carrying plates 1, and the supporting assembly can be contained in the containing space after being detached like a suitcase. Correspondingly, the inner side surfaces of the two carrying plates 1 can be provided with a plurality of buckles, and the supporting component can be fixed in the accommodating space through the buckles, as shown in fig. 1 and 2.

Carry and be provided with buckle subassembly 4 on the thing board 1, buckle subassembly 4 is used for two carry the mutual lock back locking of thing board 1 to carry thing board 1. Buckle subassembly 4 can comprise traditional buckle and couple, and during the setting, the buckle setting is on one of them carries thing board 1, and the couple then sets up on another carries thing board 1, and the position of the two is corresponding, carries the mutual lock back of thing board 1 when two, with buckle and couple straining, two carry the thing board then by locking, and supporting component in the accommodation space then can not fall out.

In addition, a handle 3 can be arranged on one of the carrying plates 1, and the multifunctional carrying device can be conveniently carried by a hand after the supporting component is accommodated in the accommodating space.

Specifically, carry thing board 1 and be the rectangle, and it includes panel and four metal rectangular tubes, connects into a rectangular frame through four corner connecting pieces 9 between the four metal rectangular tubes, and the panel is then installed on rectangular frame.

As shown in fig. 28, each of the four corner connectors 9 is provided with a receiving hole 2, the receiving hole 2 vertically penetrates through the corner connector 9, and the support assembly is detachably mounted in the receiving hole 2. Correspondingly, the number of the supporting components is four, and when the two carrying plates 1 are overlapped to be used as a small carrying table top, the four supporting components can be inserted into the four inserting holes 2 of the carrying plate 1 below; when the two carrying plates 1 are unfolded to be used as a large carrying table, the four supporting components can be inserted into the two inserting holes 2 on the outer sides of the two carrying plates 1.

The supporting component in this embodiment is a caster wheel component 7, and as shown in fig. 5 to 9, the caster wheel component 7 includes a caster wheel body and a slanting head insertion head 72 provided on the caster wheel body. Specifically, the caster body further includes a fork 73 and a wheel 74 disposed on the fork 73, and the oblique head insert 72 may be connected to the top of the fork 73 by bolts or welding. In the above configuration, the caster assembly 7 forms a directional wheel, i.e., the caster body is not rotatable relative to the skewed head insert 72.

During installation, insert oblique skew head male member 72 and receive in the jack 2 can be with the quick installation on carrying thing board 1 of truckle subassembly 7. When the two carrying plates 1 are overlapped to form a small carrying platform, the multifunctional carrying device can be used as a small flat car after the caster assemblies 7 are installed, as shown in fig. 3. When the two carrying plates 1 are unfolded to serve as a large carrying platform, the multifunctional carrying device can serve as a large flatbed after the caster assemblies 7 are installed, as shown in fig. 4.

Since the caster assemblies 7 of the above-described structure are directional wheels, the formed flatbed is not convenient to steer when mounted on a loading board, and for this reason, the wheel forks 73 and the skew head insertion heads 72 may be connected by a swivel structure as shown in fig. 7, which is another preferable scheme.

Specifically, the rotary structure includes a thrust bearing 78, a deep groove ball bearing 79, and a shaft screw 77. In this case, the mounting seat 717 of the fork 73 needs to be provided with a thrust bearing mounting seat 711 and a deep groove ball bearing seat 715, and the thrust bearing mounting seat 711 is located above the deep groove ball bearing seat 715. During installation, the thrust bearing 78 is installed in the thrust bearing installation seat 711, and the deep groove ball bearing 79 is installed in the deep groove ball bearing seat 715.

In addition, a wheel fork end cover 710 is installed on the top of an installation seat 717 of the wheel fork 73, the thrust bearing 78 can be installed in a thrust bearing installation seat 711 after the wheel fork end cover 710 is opened, the deep groove ball bearing 79 can be installed in a deep groove ball bearing seat 715 through the lower end of the wheel fork 73, after the thrust bearing 78 and the deep groove ball bearing 79 are installed, the upper end of a shaft rod screw 77 sequentially penetrates through the deep groove ball bearing 79, the thrust bearing 78 and the wheel fork end cover 710 and then is screwed into a screw hole in the lower end of the oblique head insertion head 72, the inner ring of the deep groove ball bearing 79 is fixed from the lower side by the end of the shaft rod screw 77, therefore, the deep groove ball bearing 79 cannot fall out of the installation seat 717, and the caster body and the oblique head insertion head 72 can be connected together.

Alternatively, the skew head insert 72 and the fork cover 710 may be welded together, and the lower end of the skew head insert 72 may be chamfered to facilitate welding. Under the structure, the wheel fork end cover 710 and the mounting seat 717 of the wheel fork 73 need to be capable of rotating, the shaft rod screw 77 with better rigidity plays a role of a supporting structure in the middle, welding points can be reinforced in an auxiliary mode, the shaft rod screw 77 and welding structure is not only high in strength, but also free of noise due to the fact that no movement gap exists, and the shaft rod screw 77 and welding design can obtain caster assemblies with different functions through the same modular parts, and resources and cost can be saved.

In the above structure, due to the rotation of the thrust bearing 78 and the deep groove ball bearing 79, the caster body can rotate relative to the oblique head insertion head 72, at this time, the caster assembly 7 forms a universal wheel, and when the caster assembly is installed on the carrying board 1, the flat car can turn to facilitate use.

In addition, because the acting force loaded by the multifunctional carrying device is from top to bottom, the thrust bearing 78 in the design is just used for bearing the carrying plate 1 and the load weight thereof without mechanical defects, and the deep-mouth ball bearing 79 at the lower part is only used for ensuring the rotation direction and fixing accessories and does not bear larger axial force, so that the combination of the thrust bearing and the deep-mouth ball bearing has more structural stability compared with two deep-mouth ball bearings. Still have steel sheet bending's the steering design of being similar to two thrust bearing structures on the market, but this kind of design precision is relatively poor, the truckle subassembly of this application has the precision through thrust bearing and the combination of deep opening ball bearing higher, it is more smooth to operate, the advantage that the noise is lower, also because the precision is higher, consequently can let the running clearance between wheel fork and the wheel do littleer, the less benefit of running clearance is that the first truckle subassembly whole volume and weight can be done littleer, convenient storage.

In addition, a cushion pad 75 may be disposed on the top of the fork 73, and the cushion pad 75 may be implemented by a silicone gasket. When the insertion depth of the inclined offset head insertion head 72 is smaller than or equal to the thickness of the object carrying plate 1, the inclined offset head insertion head 72 is completely inserted into the insertion hole 2, the lower bottom surface of the object carrying plate 1 is overlapped to the top of the wheel fork 73, the silica gel gasket is stressed at the moment, the buffering effect is achieved, and most of noise generated by surface vibration of the object carrying plate 1 can be absorbed.

When the length of the oblique head inserting head 72 is increased to prevent the bottom surface of the carrier plate 1 from abutting against the top of the fork 73, the cushion pad 75 cannot absorb sound, and in this case, the cushion pad can be additionally arranged in the inserting hole 2, and the noise generated when the carrier plate 1 vibrates can be reduced.

In order to fix the caster assembly to the carrier plate 1, the oblique head insertion head 72 is fixed to the receptacle hole 2 by a positioning structure, as shown in fig. 3, 4, and 5.

Specifically, the positioning structure includes a screw positioning hole 76 and a positioning screw 716. When the positioning device is arranged, the screw positioning hole 76 is arranged on the oblique head insertion head 72, the positioning screw 716 penetrates through the object carrying plate 1 and then is inserted into the screw positioning hole 76, and the screw positioning hole 76 can be a rectangular vertical concave ellipsoid hole. Through the cooperation of screw locating hole 76 and set screw 716, restricted skew head male head 72's horizontal rotation again, vertically limited skew head male head 72's the depth of insertion, because the platform truck can pitch from top to bottom when moving on the road surface inevitable again, arouse the here set screw 716 pine to take off, the design of screw locating hole 76 makes the here set screw 716 still have the effect of location even loose, improves the security.

In addition, the bottom of the screw positioning hole 76 is provided with a silica gel gasket, and when the positioning screw 716 is inserted into the screw positioning hole 76, the silica gel gasket can be contacted with the positioning screw, so that great noise can not be generated even if the flat car jolts up and down.

The socket 2 inclines from top to bottom to the outer side of the loading plate, namely the socket 2 inclines from top to bottom to the edge of the loading plate. Accordingly, the skew head insertion head 2 is also obliquely disposed on the fork 73 in the same direction as the insertion hole 2 and in the same angle as the insertion hole 2, so that the skew head insertion head 72 can be inserted into the insertion hole 2, as shown in fig. 10.

Because the inserted hole 2 is inclined towards the edge of the carrying plate from top to bottom, after the oblique head inserting head 72 is inserted into the inserted hole 2, the contact point of the wheel 74 and the ground can be closer to the edge of the carrying plate 1, and the contact point of the wheel 74 and the ground can even exceed the width of the carrying plate by controlling the length of the oblique head inserting head 72, so that the stability can be ensured even if higher and heavier goods are stacked on the carrying plate or the carrying device runs on an inclined road surface.

In addition, the larger the inclination angle of the oblique head insertion head 72 and the receiving hole 2 is, the closer the caster body is positioned to the outside of the loading plate, and the farther downward the distance between the oblique head insertion heads 72 of the plurality of caster assemblies is, the less easily the flatbed is slid downward along the oblique head insertion head 72, so that the plane of the loading plate is more stable. However, in the specific implementation, the inclination angles of the oblique head insertion head 72 and the receptacle 2 should take into consideration the load requirement of the loading device, the materials of the oblique head insertion head 72 and the loading plate, the final required height requirement of the loading device, the overturning moment requirement, and other factors, and based on this, the inclination angle α of the oblique head insertion head 72 and the receptacle 2 may be set to 60 ° to 88 °, that is, the acute angle α between the central axes of the oblique head insertion head 72 and the receptacle 2 and the horizontal plane is set to 60 ° to 88 °, and the acute angle α in this embodiment is set to 85 °, as shown in fig. 12.

In addition, regarding the distribution direction of the jacks 2, in the present embodiment, the jacks 2 extend in the direction of the bisectors of the four corners of the rectangular carrier board 1, that is, the vertical projections of the central axes of the four jacks 2 coincide with the bisectors L1, L2, L3, and L4 of the corners a, B, C, and D of the carrier board 1, respectively, as shown in fig. 11. At the moment, the included angle between the central axis of the receiving and inserting hole 2 and the angle bisector of the corner of the carrying plate is 60-88 degrees.

In the above structure, the contact point of the wheel 74 of the caster assembly with the ground is located on the perpendicular projection line of the angular bisector of the carrying plate or the extension line of the perpendicular projection line, and the multifunctional carrying device can run more stably.

During the concrete implementation, truckle subassembly can adopt directional wheel, with four directional wheels install the back on carrying the thing board, the flatbed can be used to the occasion that need not to turn to. Of course, the directional wheels may also be the rear wheels of the flatbed, while the front wheels of the flatbed are universal wheels, in which case the flatbed can be steered.

As the orientation wheels, it is necessary to fix the direction during operation, and two orientation wheels are divided into left and right, for this reason, this embodiment is provided with a guide groove 714 on the inner wall of the insertion hole 2, as shown in fig. 1, and a guide boss 713 on the oblique head insertion head 72, as shown in fig. 5, when the oblique head insertion head 72 is inserted into the insertion hole 2, the guide boss 713 can be snapped into the guide groove 714. By providing the guide groove 714 and the guide boss 713, it is possible to prevent a user from making an assembly mistake; when the carrier plate is installed away from the top of the wheel fork, the slant head insertion head 72 will be subjected to a large force when the flatbed is loaded, and after the force is applied to the slant head insertion head 72, the maximum deformation position of the slant head insertion head 72 is the position of the guide boss 713, so that the guide boss 13 also has the function of reinforcing the slant head insertion head 72 to support.

In particular, the top end of the skew head insert head 72 may be chamfered, which may make the skew head insert head 72 more smoothly inserted into the receptacle 2.

When need not use this multi-functional year thing device, can pull down the truckle subassembly, carry 1 lock of thing board with two again, the part of truckle subassembly then packs into two and carries the storage space that the thing board formed, reduces the occupation space of device to after putting into the trunk with the device, other article in trunk or the trunk can not make dirty also to the truckle subassembly of accomodating.

Example 2

In order to better drag the multifunctional loading device, in this embodiment, on the basis of embodiment 1, the multifunctional loading device further includes a pull rod assembly 8, and correspondingly, the at least one loading plate 1 is provided with an inserted assembly 5, and the pull rod assembly 8 is detachably connected to the inserted assembly 5. In addition, the pull rod assembly 8 can be stored in the storage space after being disassembled.

As shown in fig. 13 and 14, the pull rod assembly 8 includes a pull rod 83 and a scissors hook plug assembly 819, the scissors hook plug assembly 819 being connected to a lower end of the pull rod 83.

Specifically, this pull rod 83 includes pull rod tubule 812 and pull rod tubule 89, and the lower extreme and the scissors hook plug subassembly 819 of this pull rod tubule 812 are connected, and pull rod tubule 89 then overlaps the outside of establishing at pull rod tubule 812, and can follow pull rod tubule 812 reciprocates, so can make the length of pull rod 83 stretch out and draw back, make the multi-functional crowd who carries the thing device of this application can be applicable to different heights, also make taking in that pull rod subassembly 8 can be better.

In order to fix the position of the large pull rod tube 89, the large pull rod tube 89 is provided with a plurality of positioning holes 810 from top to bottom, the small pull rod tube 812 is provided with a length positioning clamping bean 88, and after the position of the large pull rod tube 89 is adjusted, the length positioning clamping bean 88 penetrates through the corresponding positioning hole 810 to fix the positions of the large pull rod tube 89 and the small pull rod tube 812.

In addition, the lower end of the small pull rod pipe 812 is also provided with a thrust positioning clamping bean 813, and the thrust positioning clamping bean 813 can prevent the small pull rod pipe 812 from being inserted into the large pull rod pipe 89 too deeply.

Meanwhile, a thick pipe sleeve 811 is arranged at the lower end of the large pull rod pipe 89, and the thick pipe sleeve 811 is arranged to avoid deformation of the pull rod due to excessive stress at the joint of the small pull rod pipe 812 and the large pull rod pipe 89. In addition, a handle 87 is also provided at the top end of the tie rod large tube 89.

As shown in fig. 15 and 16, the scissor hook plug assembly 819 includes a housing 820 and a scissor hook 831, the scissor hook 831 is disposed in the housing 820, and the housing 820 can be connected to the lower end of the pull rod pipe 812.

Specifically, as shown in fig. 17, the scissor hook 831 includes a first hook 822 and a second hook 823 which are hinged together by a connecting shaft 827 in a crossing manner, the first hook 822 and the second hook 823 can be opened and closed by using the connecting shaft 827 as a fulcrum, and the whole pull rod assembly can be mounted on the insertion assembly 5 through the first hook 822 and the second hook 823.

In addition, a spring 826 is connected between the control ends of the first hook 822 and the second hook 823, and pressing portions 824 are provided on the control ends of the first hook 822 and the second hook 823. Correspondingly, through holes 821 are formed in two opposite side walls of the outer shell 820, control ends of the first hook 822 and the second hook 823 are installed in the outer shell 820, pressing portions 824 on the first hook 822 and the second hook 823 respectively penetrate through the two through holes 821 and then extend out of the outer shell 820, and hook ends of the first hook 822 and the second hook 823 also extend out of the outer shell 820 and are connected with the plug-in component 5 conveniently. In detail, both ends of the connection shaft 827 may be fixed to the case 820, so that the scissor hooks 831 may be more stably installed on the case 820.

In the above structure, when the spring 826 is in a natural state, the first hook 822 and the second hook 823 are in an open state, and when the pressing portion 824 on the first hook 822 and the second hook 823 is pressed at the same time, the spring 826 is pressed and contracted, the first hook 822 and the second hook 823 rotate around the connecting shaft 27 as a fulcrum, and the entire scissor hook 831 is in a closed state.

When the scissor assembly is used, the pressing parts 824 on the first hook 822 and the second hook 823 are simultaneously pressed, the scissor hook 831 is in a closed state, the scissor hook 831 is inserted into the inserted assembly 5, then the pressing parts 824 on the first hook 822 and the second hook 823 are loosened, the first hook 822 and the second hook 823 return to an open state under the action of the spring 826, at the moment, the first hook 822 and the second hook 823 can hook the inserted assembly 5, and the whole pull rod assembly is quickly connected to the inserted assembly 5.

In addition, the scissors hook plug assembly 819 is connected to the pull rod 83 via a universal swivel connection 82, as shown in FIG. 13. On the basis of this structure, the pull rod 83 and the scissors hook plug assembly 819 can rotate relative to the universal rotation connection structure 82.

Specifically, as shown in fig. 15, the universal rotational connection structure 82 includes a rotational connection member 817, a rotational shaft receptacle 815, and a universal connection shaft 818. When connected, one end of the universal connection shaft 818 is connected to the housing 820 through a first rotation shaft screw 828, and the other end thereof is connected to the rotation connector 817 through a second rotation shaft screw 829. In a specific arrangement, the housing 820 and the rotary connector 817 may be provided with U-shaped openings, and two ends of the universal connection shaft 818 are respectively located in the U-shaped openings of the housing 820 and the rotary connector 817, so that the universal connection shaft 818 can rotate with the first rotation shaft screw 828 and the second rotation shaft screw 829 as the pivot points.

The first rotating shaft screw 828 and the second rotating shaft screw 829 are mutually 890 degrees distributed vertically, so that the rotating connecting member 817 can swing horizontally and vertically, and the practicability of the application is improved.

In addition, a rotation shaft 814 is provided at an upper end of the rotation coupling 817, and the rotation shaft is mounted on the rotation shaft 814 by a socket 815. The diameter of the rotating shaft 814 is smaller than the diameter of the mounting hole of the rotating shaft receiving socket 815, so that the rotating shaft receiving socket 815 can rotate on the rotating shaft 814. In addition, the rotating shaft 814 is provided with a steel shaft 830 for preventing the rotating shaft from being separated from the rotating shaft 814 by the socket 815.

A sliding gasket 816 is further arranged between the rotating shaft receiving socket 815 and the rotating connecting member 817, and the sliding gasket 816 can reduce the friction force between the rotating shaft receiving socket 815 and the rotating connecting member 817.

When the device is installed, the rotating shaft receiving socket 815 can be inserted into the pull rod small pipe 812, and is in over-hard fit with the pull rod small pipe 812, and the rotating shaft receiving socket 815 can also be welded and fixed with the lower end of the pull rod small pipe 812. Since the rotation shaft receiving socket 815 can rotate on the rotation shaft 814, the pull rod 83 can also rotate.

Through foretell revolution mechanic, no matter the user can adjust to a more comfortable angle of exerting oneself with which hand pulling fast plug pull rod assembly about with, the arm can not be twisted up with strength, more accords with human engineering.

In addition, as shown in fig. 20, due to the blocking effect of the U-shaped opening on the housing 820, after the universal connection shaft 818 rotates around the first rotation shaft screw 828 as the fulcrum, the minimum included angle α formed between the universal connection shaft 818 and the upper surface of the housing 820 is 80 to 88 degrees, in this embodiment, the minimum included angle α is set to 85 degrees, that is, when the scissor hook 831 is horizontally inserted into the inserted component 5, and the pull rod 83 rotates upward, the pull rod 83 can only rotate to a position of 85 degrees with the upper surface of the housing 820, as shown in fig. 20. When the multifunctional carrying device does not need to be dragged, the pull rod 83 can be pushed back to the 85-degree position, the pull rod 83 is in a state of inclining and standing towards one side of the carrying plate 1, the pull rod 83 cannot turn downwards and fall onto the ground to be polluted under the action of the gravity of the pull rod 83, and the pull rod does not need to be stood down to be picked up when the pull rod is reused. In addition, when the pull rod 3 is in the position, the space above the carrying plate 1 is not excessively occupied, and the stacking of goods is prevented from being influenced.

In addition, when the pull rod 83 rotates to the 85-degree position, the lower end of the rotary connecting piece 817 is in linear contact with the upper surface of the shell 820, and the pull rod 83 cannot swing left and right through the abutting action of the rotary connecting piece 817, so that the pull rod 83 is prevented from swinging left and right and falling to the ground. Through the structure, the pull rod can be limited at a fixed position by the gravity of the pull rod through simple action without adding additional parts. Of course, a washer may be provided between gimbal shaft 818 and rotational link 817 to increase the rotational damping therebetween, which may better secure the tie rod in this position. Because most parts of the pull rod assembly are positioned at the lower end of the pull rod assembly, the gravity center of the pull rod assembly can be lowered, and the pull rod is more stable at the position.

Correspondingly, this receive subassembly 5 can be two hook spare 86, and the distance between two hook spare 86 needs to be greater than the width behind the scissors hook 831 closure, during the use, control scissors hook 831 is closed to pass scissors hook 831 between two hook spare 86, then unclamp scissors hook 831, and draw back scissors hook 831, first couple 822 and second couple 823 on scissors hook 831 then hook two hook spare 86 respectively, can be quick like this install the pull rod subassembly on carrying the thing board. When the pull rod assembly needs to be disassembled, the scissor hook plugging assembly 819 is pushed forward, so that the first hook 822 and the second hook 823 are separated from the two hook members 86, the two pressing portions 824 are pressed, the scissor hook 831 is closed, and finally the scissor hook 831 is withdrawn from between the two hook members 86.

The two hook members 86 may be formed as appropriate, and may be formed as two shaft rods or two hook holes so long as the first hook 822 and the second hook 823 can hook them.

As shown in fig. 18, the side wall of the carrier plate may be provided with hook insertion holes 85, and two hook members 86 are located in the hook insertion holes 85. When the scissors hook 831 is used, the scissors hook 831 is inserted into the hook insertion hole 85 and then hooked on the two hook members 86, so that the hook members 86, the scissors hook 831 and other parts can be prevented from being exposed outside to influence the appearance.

Since the stress is concentrated at the position where the scissor hook 831 is combined with the hook insertion hole 85 and the scissor hook 831 is relatively weak, a better fixing effect can be achieved by allowing a portion of the housing 820 to be inserted into the hook insertion hole 85 when the hook insertion hole 85 is designed. For this reason, this embodiment sets up heavy platform 84 on the lateral wall of objective plate, and the inside profile of heavy platform is unanimous with the appearance of shell 820, and couple patchhole 85 is located the bottom of heavy platform 84, and when hooking clasp 86 with scissors hook 831, the front end of shell 820 can be inserted into heavy platform 84, so not only can increase joint strength, can also restrict scissors hook plug assembly 819 swing about and rotatory, improves the stability of connecting.

During specific implementation, the inserted components 5 can be installed at different positions of the object carrying plate, so that pull rod components can be installed at different positions of the object carrying plate, the cooperative work of pulling multiple rods simultaneously is realized, and the multifunctional object carrying device is better pulled. When the pull rod assembly 8 is stored, the pull rod assembly can be taken down from the carrying plate and stored in the storage space.

Example 3

This embodiment is the same as embodiment 1, except that the supporting members in this embodiment are leg members 6, and the upper ends of the leg members 6 are inserted into the insertion holes 2, so that the multi-purpose loading device in this embodiment forms a table, as shown in fig. 20 and 21. Because of receiving the setting of jack 2 slope, table leg subassembly 6 inserts and receives jack 2 back, and table leg subassembly 6 extends to the outside of carrying thing board 1 from top to bottom, can make the desk more stable like this.

Specifically, as shown in figure 22, the leg assembly 6 may include a leg body and a foot assembly that is mounted to the lower end of the leg body.

As shown in fig. 23 and 24, the foot seat assembly includes a foot seat 63 and a screw rod fisheye joint bearing 62, and the screw rod fisheye joint bearing 62 is mounted on the foot seat 63 and can swing on the foot seat 63, so that the foot seat assembly can still be attached to the ground when being applied to the undulating ground.

Specifically, in order to enable the screw rod fisheye joint bearing 62 to swing, a mounting groove 68 is formed on the foot base 63, a concave spherical surface 69 is arranged at the bottom of the mounting groove 68, and the screw rod fisheye joint bearing 62 is mounted in the mounting groove 68 through a rotating shaft 626. The rotating shaft 626 may be a rotating shaft screw, and when the rotating shaft screw is installed, after passing through the inner ring of the screw rod fisheye joint bearing 62, both ends of the rotating shaft screw are fixedly installed on the installation holes of both side walls of the installation groove 68, so that the screw rod fisheye joint bearing 62 can be installed in the installation groove 68. The lead screw of the lead screw fisheye joint bearing 62 faces upwards, so that the whole foot seat assembly is arranged on the table leg body through the lead screw of the lead screw fisheye joint bearing 62.

In addition, the width of the mounting groove 68 is greater than the thickness of the lead screw fisheye joint bearing 62, which enables the lead screw fisheye joint bearing 62 to rotate about the rotation shaft 626. Because the rotating part of the screw rod fisheye joint bearing 62 consists of an inner ring with an outer spherical surface and an outer ring with an inner spherical surface, and the sliding surface of the rotating part is spherical, the screw rod fisheye joint bearing 62 can also perform tilting motion within a certain angle range, so that the outer ring of the screw rod fisheye joint bearing 62 can perform universal swing in the mounting groove 68.

Through the structure, when the foot seat assembly is installed on the table leg body through the lead screw of the lead screw fisheye joint bearing 2, the foot seat 63 can automatically fit to the fluctuated ground due to universal swing between the foot seat 63 and the lead screw of the lead screw fisheye joint bearing 62, the table leg can be fitted to the ground without repeated adjustment directions, and the adjustment efficiency is improved.

In addition, the mounting holes on the two side walls of the mounting groove 68 are all strip-shaped holes 625, the strip-shaped holes 625 are vertically distributed, and the rotating shaft 626 can move along the strip-shaped holes 625. Meanwhile, the bottom of the concave spherical surface 69 is provided with a bottom hole 610. Through the structural design, the all-terrain foot seat assembly can prevent the concave spherical surface 69 from being clamped with the fisheye joint bearing 62 of the lead screw, and can also ensure that the force borne by the table leg body is smoothly transmitted to the foot seat 63, thereby preventing the deformation or the cracking caused by the overlarge bearing force of the rotating shaft 626. Meanwhile, the design also facilitates chip removal and cleaning, when sundries enter the concave spherical surface 69, the strip-shaped hole 625 enables the foot seat 63 and the screw rod fisheye knuckle bearing 62 to form loose fit, the sundries can be discharged through the bottom hole 610 at the bottom of the foot seat, and the combined surface can be cleaned through water.

Set up bottom hole 610 to hexagonal hole in this embodiment, the design of hexagonal hole not only can the chip removal, also can be when the difficult twisting of screw of lead screw flake spherical plain bearing 62 is died because of debris card, can unscrew with the help of the hexagonal spanner.

In addition, the outer side of the foot seat 63 is further coated with a non-slip mat 64, and the non-slip mat 64 is a silica gel non-slip mat which can increase the ground gripping force of the all-terrain foot seat assembly.

The non-slip mat 64 has a barrel-shaped structure with a tight top and a loose bottom, i.e. the diameter of the non-slip mat is smaller at the top and larger at the bottom, and the diameter of the upper end is smaller than the diameter of the foot seat 63 at the maximum. In addition, the bottom of the foot base 63 is provided with a non-slip groove, the side wall of the foot base is provided with a knurl 611, the non-slip mat 64 can be prevented from being loosened from the foot base 63 through the non-slip groove and the knurl 611, and a larger friction force can be provided when the foot base assembly is screwed by hands.

During the use, the lead screw of accessible lead screw flake joint bearing 62 installs the foot stool subassembly in the lower extreme of table leg body, because the good ground performance of pasting of foot stool subassembly for the desk is laid more steadily on undulation ground.

As another preferred solution, the foot assembly further comprises a claw disk 623 and a ball nut 61. The claw disk 623 is provided with a through hole which is detachably sleeved on a screw rod of the screw rod fisheye joint bearing 62, and the ball nut 61 can be detachably arranged on the screw rod of the screw rod fisheye joint bearing 62 through threads and is positioned above the claw disk 623. When in use, the claw disk 623 can be installed and detached only by taking off the ball nut 61.

The claw disk 623 is in clearance fit with a screw rod of the screw rod fisheye joint bearing 62, the lower end of the ball nut 61 is provided with the spherical surface 67, and the outer ring of the screw rod fisheye joint bearing 62 is also an arc surface, so that the claw disk 623 can slide along the spherical surfaces above and below the claw disk 623, universal swing of a certain angle is realized, and the claw disk 623 can be tightly attached to the undulating ground.

The lower end of the claw disk 623 is uniformly provided with a plurality of sharp corners 624 in the circumferential direction, and the claw disk 623 can firmly grasp the ground through the sharp corners 624.

The claw disk 623 can be selectively installed, when a user needs to put on a table on soft ground such as a sediment ground, the claw disk 623 can be installed on the foot seat assembly, the claw disk 623 can also provide large supporting force on the soft ground due to the large area of the claw disk 623, and the sharp corners 624 are arranged on the periphery of the claw disk 623, so that the claw disk can provide large ground holding force when being in contact with the ground.

When in specific use, the foot seat component in the embodiment can be arranged on the table leg body through the ball nut 61. Specifically, as shown in fig. 25 and 26, an insertion head 65 is provided at the upper end of the ball nut 61, and a boss 66 is provided on the insertion head 65. During the installation, insert head 65 in the mounting hole of table leg body to make insert head 65 and mounting hole cooperation too hard, can install the shape foot stool subassembly of this embodiment on the table leg body like this. The bosses 66 can function as the table leg bodies to prevent the table leg bodies from crushing the foot seat components.

As shown in fig. 21, the leg body comprises a leg small tube 613 and a leg large tube 612, the leg large tube 612 is sleeved outside the leg small tube 613, and the lower end of the leg small tube 613 is connected with the lead screw or the insertion head 65 of the lead screw fisheye joint bearing 62 of the foot seat assembly.

The large leg tubes 612 can move up and down along the small leg tubes 613 so that the leg body can be extended and contracted, thereby adjusting the length of the leg assembly in a larger range and enabling the leg assembly to be suitable for different terrains.

In order to fix the large tube of the table leg 612, a plurality of bean clamping positioning holes 619 distributed up and down are arranged on the large tube of the table leg 612, correspondingly, a positioning bean clamp 618 is arranged on the small tube of the table leg 613, and after the height of the table leg body is adjusted, the positioning bean clamp 618 is clamped into the corresponding bean clamping positioning holes 619, so that the large tube of the table leg 612 can be fixed.

The outside of the lower end of the large leg tube 612 is provided with a tube sleeve 614, the lower end of the small leg tube 613 is provided with an anti-falling clamping bean 620, and the lower end of the tube sleeve 614 can abut against the anti-falling clamping bean 620. The tube housing 614 can increase the thickness of the joint between the large leg tube 612 and the small leg tube 613, so as to prevent the large leg tube 612 from cracking due to stress concentration therein, and prevent the large leg tube 612 from deforming after the anti-slip locking beam 620 props against the large leg tube 612.

Because the outer diameter of the small leg tube 613 is smaller than the inner diameter of the large leg tube 612, the small leg tube 613 may wobble within the large leg tube 612. To solve this problem, the embodiment is provided with a concave spin-fit groove 615 on the large tube 612 of the table leg. The inner diameter of the spinning fit groove 615 is slightly larger than the outer diameter of the small leg tube 613, for example, the outer diameter of the small leg tube 613 is 20mm, when the spinning fit groove 615 is machined, a steel column with the outer diameter of 20.01mm is placed into the large leg tube 612 for spinning, the outer inner diameter of the spinning fit groove 615 is just 0.01mm larger than 20mm, but due to factors such as deformation stress, the actual inner diameter of the spinning fit groove 615 is slightly larger than 20.01, at the moment, a steel column mold can be easily pulled out, and the small leg tube 613 can also be inserted. On the basis of the structure, the outer diameter of the pipe cover at the upper end of the small pipe 613 of the table leg is matched to be slightly smaller than the inner diameter of the large pipe 612 of the table leg, so that the small pipe 613 of the table leg and the large pipe 612 of the table leg can be strictly concentric, and the table top shaking caused by the matching tolerance of the large pipe and the small pipe can be greatly reduced. Meanwhile, the structure with the two ends matching can allow the small leg tubes 613 and the large leg tubes 612 to slightly deform to a certain extent, even if the small leg tubes 613 are slightly deformed, the small leg tubes 613 can be smoothly inserted and pulled out, the height of the leg body can be adjusted, and the installation mode with the two ends matching can also reduce the air resistance when the small leg tubes 613 are inserted and pulled out to a certain extent.

During the installation, insert the table leg king-tube 612 upper end of table leg subassembly respectively and carry four of thing board 1 and receive the jack 2 in can assembling into a desk, then adjust the length of every table leg subassembly according to the topography and can make the desk lay on the subaerial of different topography, the foot stool 63 can paste ground this moment, makes the desk more steady.

In order to fix the loading plate, the large tube 612 of the table leg is provided with a positioning hoop 617, the holding position of the positioning hoop 617 on the large tube 612 of the table leg can be adjusted up and down freely, only the position of the positioning clamping bean 618 is interfered, and at the moment, the interference between the positioning hoop 617 and the positioning clamping bean 618 can be avoided by adjusting the inserting position of the positioning clamping bean 618 into the clamping bean positioning hole 619 of the corresponding position or adjusting the inserting depth of the foot seat component into the small tube 613 of the table leg. The positioning hoop 617 can play a role of supporting the object carrying plate 1, and the length of the object carrying plate inserted into the upper end of the large tube 612 of the table leg can be adjusted by adjusting the position of the positioning hoop 617 on the table leg assembly in the embodiment, so as to adjust the height between the object carrying plate and the ground.

Accordingly, the upper end of the large leg tube 612 is further provided with a positioning groove 616, and after the large leg tube 612 is inserted into the insertion hole on the tabletop 621, the locking bolt 622 can be inserted into the positioning groove 616, so as to lock the foot seat assembly, and the foot seat assembly can be more stably mounted on the carrier plate, as shown in fig. 27.

The positioning groove 616 can be located according to the situation, preferably, when the locking bolt 622 is inserted into the positioning groove 616, the upper end of the table leg large tube 12 is just equal to or slightly lower than the upper surface of the object carrying plate, so that the table is more beautiful and the placement of the objects is not affected.

The inserting holes 2 on the carrying plate 1 can be round holes, correspondingly, the table leg large tubes 612 are cylindrical, so that the table leg large tubes 612 can be rotated after being inserted into the inserting holes 2, and the horizontal direction of the table leg assembly can be adjusted according to the terrain to better ensure that the foot seats 63 are tightly attached to the ground.

After long-time use, the inner surface of the positioning hoop and the outer surface of the large tube 612 of the table leg are possibly polluted, and the tightening strength of the tightening screws of the positioning hoop 617 is difficult to determine, so that the object carrying plate is fixed by the positioning hoop 617 and has a certain gliding risk. However, because receive jack 2 from top to bottom to carrying the thing flange edge slope, the table leg subassembly inserts and receives the jack 2 after, carries the thing board and has constituted a big-end-up trapezoidal pyramid structure with the table leg subassembly, through this kind of structure, carries the thing board even if gliding downwards, also can be dead because of the increase of the horizontal distance of table leg subassembly and block, reduces the potential safety hazard, in addition, the outside expansion of four table leg subassemblies is the risk of toppling that can also reduce the desk. When the multifunctional carrying device is not needed, the table leg assembly can be taken down and stored in the storage space, and the occupied space is reduced.

It should be noted that all of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.

In addition, the above-described embodiments are exemplary, and those skilled in the art, having benefit of this disclosure, will appreciate numerous solutions that are within the scope of the disclosure and that fall within the scope of the invention. It should be understood by those skilled in the art that the present specification and figures are illustrative only and are not limiting upon the claims. The scope of the invention is defined by the claims and their equivalents.

Claims (10)

1. A multifunctional carrying device is characterized by comprising a plurality of supporting components and two carrying plates (1) which are hinged with each other; the supporting assembly is detachably arranged on the two carrying plates (1) and is used for supporting the two carrying plates (1); the two carrying plates (1) can be mutually unfolded and buckled, in addition, after the two carrying plates (1) are mutually buckled, a containing space is formed between the two carrying plates, and the supporting assembly can be contained in the containing space after being disassembled.

2. The multifunctional carrying device according to claim 1, wherein the carrying plate (1) is provided with a plurality of receiving holes (2), the receiving holes (2) are inclined from top to bottom towards the edge of the carrying plate (1), and an acute angle α formed between the central axis of the receiving holes (2) and the surface of the carrying plate (1) is 60-88 °; the supporting component is installed on the object carrying plate (1) through the inserting hole (2), so that the supporting component is inclined to the edge direction of the object carrying plate (1) from top to bottom.

3. Multifunctional carrier device according to claim 2, characterized in that the perpendicular projection of the central axis of the receptacle (2) coincides with the bisector of the corner of the carrier plate (1).

4. A multi-purpose carrier device according to claim 2 or 3, wherein said support assembly is a caster assembly (7); the truckle subassembly (7) are gone up to slope and are provided with oblique head male (72), the incline direction of oblique head male (72) with the incline direction who receives jack (2) cooperatees, so that oblique head male (72) can insert receive in jack (2), and to the outside of carrying thing board (1) extends.

5. The multifunctional carrying device as claimed in claim 4, further comprising a pull rod assembly (8), wherein at least one of the carrying plates (1) is provided with an inserted assembly (5), the pull rod assembly (8) is detachably connected to the inserted assembly (5), and the pull rod assembly (8) can be accommodated in the accommodating space after being detached.

6. Multifunctional carrier device according to claim 5, characterized in that the pull rod assembly (8) comprises a pull rod (83) and a scissor hook plug assembly (819) connected to the lower end of the pull rod (83) by a universal rotational connection (82); the scissors hook plugging component (819) is detachably connected with the plugged component (5), and the pull rod (83) and the scissors hook plugging component (819) can swing relative to the universal rotating connection structure (82).

7. A multi-purpose carrier device according to claim 2 or 3, wherein said support members are leg members (6); the upper end of the table leg component (6) is inserted into the insertion hole (2), so that the table leg component (6) extends to the outer side of the object carrying plate (1) from top to bottom.

8. The multi-purpose carrier device of claim 7, wherein the leg assembly (6) includes a leg, a foot mount (63), and a lead screw fisheye joint bearing (62); the foot seats (63) are connected with the table legs through the screw rod fisheye joint bearing (62), and the foot seats (63) can do universal swing relative to the screw rod fisheye joint bearing (62).

9. The multi-function carrier device of claim 8, wherein the leg assembly (6) further comprises a claw plate (623), the claw plate (623) being removably mounted to the lead screw fisheye joint bearing (62) and capable of universal pivoting movement on the lead screw fisheye joint bearing (62).

10. Multifunctional carrying device according to claim 9, characterized in that the carrying plates (1) are provided with snap-on assemblies (4), the snap-on assemblies (4) being adapted to lock the two carrying plates (1) after the two carrying plates (1) are fastened to each other.

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