Loading vehicle capable of being folded and stored
The foldable cargo carrier addresses the issue of large size after folding by using a folding frame with a movable sleeve and telescopic components, enabling compact storage and easy deployment.
Patent Information
- Application Number
- CN202420813260.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-18
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-04-18
AI Technical Summary
Existing cargo carriers cannot be effectively folded for storage, resulting in large volumes that are inconvenient to carry.
A foldable cargo carrier design featuring a folding frame with a movable sleeve, telescopic components, universal wheels, and a cloth body, allowing for easy unfolding and folding through the movement of the movable sleeve along a column, and detachable components for storage.
Enables the cargo carrier to be compactly stored by folding, with detachable parts fitting into a backpack or handbag, while providing a functional carrying solution when needed.
Smart Images
Figure CN222247254U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of loading tools, in particular to a foldable and storable cargo carrier. Background Art
[0002] Carriers are often used when going out for shopping, playing or camping, and can be used to carry clothes, daily necessities, food, etc. Existing carriers usually cannot be folded for storage, or the folding effect is not good, and the volume is still relatively large, so there is a problem of inconvenience in carrying.
[0003] In this regard, the applicant believes that it is necessary to improve the existing cargo carrier so that the cargo carrier has a better folding and storage effect. The size after folding and storage can even be put into a backpack or handbag. When needed, it can be taken out directly from the backpack or handbag, and then unfolded for use. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide a foldable storage vehicle to solve the problem that the existing vehicle cannot be folded or the volume is still relatively large after being folded and stored, making it inconvenient to carry.
[0005] The utility model solves the technical problem by adopting a technical solution: providing a foldable storage vehicle, comprising a folding frame, a push rod, universal wheels and a cloth body;
[0006] The folding frame includes a first column, a movable sleeve, a second column and a telescopic component; the movable sleeve is arranged on the periphery of the first column and can move along the first column; the number of the second columns is four, and the four second columns are distributed around the first column; the number of the telescopic components is four groups, and the inner side of each group of the telescopic components is connected to the first column and the movable sleeve at the same time, and the outer side is connected to the second column; wherein, when the movable sleeve moves along the first column in a first direction, the movable sleeve will drive the four second columns to move in a direction close to the first column with the help of the four groups of the telescopic components, and when the movable sleeve moves along the first column in a second direction opposite to the first direction, the movable sleeve will drive the four second columns to move in a direction away from the first column with the help of the four groups of the telescopic components;
[0007] The push rod is detachably connected to the top end of the first column;
[0008] The number of the universal wheels is four, and the four universal wheels are detachably connected to the bottoms of the four second columns;
[0009] The cloth body includes a peripheral surface and a bottom surface; the peripheral surface surrounds the periphery of the four second pillars and is fixed to the outer walls of the four second pillars; the bottom surface is connected to the bottom of the peripheral surface, and the bottom surface is penetrated by the bottoms of the four second pillars; wherein, when the movable sleeve moves along the first pillar to the second direction to the extreme position, the peripheral surface and the bottom surface are stretched and tightened by the four second pillars.
[0010] Furthermore, when the movable sleeve moves along the first column to the second direction to an extreme position, the peripheral surface is stretched open by the four second columns and tightened to form a rectangular frame structure.
[0011] Furthermore, the telescopic assembly includes a first rod, a second rod, a third rod and a fourth rod;
[0012] One end of the first rod body is hinged to the movable sleeve;
[0013] One end of the second rod is hinged to the bottom of the first column, and the middle of the second rod is hinged to the middle of the first rod;
[0014] One end of the third rod body is hinged to the end of the first rod body away from the movable sleeve, and the other end can slide along the extension direction of the second column;
[0015] One end of the fourth rod is hinged to one end of the second rod away from the first column, and the other end is hinged to the bottom of the second column; and the middle part of the fourth rod is hinged to the middle part of the third rod;
[0016] The first direction is a direction from the bottom of the first column to the top thereof, and the second direction is a direction from the top of the first column to the bottom thereof.
[0017] Furthermore, the second rod body is hinged to the bottom of the first column through an ear seat, and the ear seat is fixed to the bottom of the first column.
[0018] Furthermore, the second column is provided with a strip groove, the side wall of the strip groove is provided with a slide groove extending along the axial direction of the second column, and one end of the third rod body is embedded in the strip groove and slidably cooperates with the slide groove through a raised sliding block.
[0019] Furthermore, the cargo carrier also includes a connecting seat and a locking sleeve;
[0020] The push rod is connected to the top of the first column via the connecting seat, the connecting seat is detachably plugged into the top of the first column, and a threaded column is provided at the lower half of the connecting seat;
[0021] The locking sleeve is sleeved on the periphery of the first column and can move along the first column, and the inner wall of the locking sleeve is provided with an internal thread matching the threaded column;
[0022] When the connecting seat is inserted into the top of the first column, the connecting seat is tightened by the internal thread of the locking sleeve and the threaded column to achieve fixation with the first column.
[0023] Furthermore, the angle between the push rod and the first column is adjustable.
[0024] Furthermore, the cargo carrier also includes a clamp lock;
[0025] The connecting seat is formed with an ear plate above the threaded column, and the ear plate is provided with a first through hole;
[0026] A U-shaped clamping plate is provided at one end of the push rod connected to the connecting seat, the U-shaped clamping plate is clamped on both sides of the ear plate, and the thickness of the clamping groove of the U-shaped clamping plate is slightly greater than the thickness of the ear plate, and the U-shaped clamping plate is provided with a second through hole matching the first through hole;
[0027] The clamp lock includes a threaded rod and a threaded sleeve; the threaded rod passes through the second through hole and the first through hole; the threaded sleeve is screwed onto the threaded rod, and when the threaded sleeve is screwed and tightened relative to the threaded rod, the threaded sleeve squeezes the outer wall of the U-shaped clamp plate, so that the U-shaped clamp plate clamps the ear plate.
[0028] Furthermore, the length of the push rod can be extended or shortened, and a handle for convenient handholding is provided at one end of the push rod away from the first column.
[0029] Furthermore, the cargo carrier also includes a bottom pad;
[0030] The bottom pad is an independent component;
[0031] When the peripheral surface and the bottom surface are spread apart and tightened by the four second upright posts, the bottom pad can pass through the first upright posts and then be laid on top of the four groups of telescopic components.
[0032] The beneficial effects of the utility model are as follows:
[0033] In the utility model, the folding frame can be changed in state by changing the position of the movable sleeve, that is, by moving the movable sleeve along the first column to the second direction, the four second columns can be driven to move away from the first column by means of the four sets of telescopic components, so that the folding frame can be unfolded; by moving the movable sleeve along the first column to the first direction, the four second columns can be driven to move toward the direction close to the first column by means of the four sets of telescopic components, so that the folding frame can be folded and stored;
[0034] When the cargo carrier is needed, the movable sleeve can be moved along the first column to the second direction to the extreme position. After the movement, the folding frame will be in a fully unfolded state, and the peripheral surface and bottom surface of the cloth body will be stretched and tightened by the four second columns. The peripheral surface and bottom surface of the cloth body are surrounded to form a cavity, and the objects can be placed in the cavity, so that the cargo carrier can realize the function of carrying objects;
[0035] When the cargo cart needs to be stored, the movable sleeve can be moved along the first column to the first direction to the extreme position. After the movement, the folding frame will be in a folded storage state, and the four second columns will move to a position close to the first column. The cloth will be wrinkled accordingly as the second columns move. At this time, since the four second columns are close to and surround the first column, the folding frame will be gathered into a bundle. At the same time, since the push rod and the universal wheel are both detachable, after the push rod and the universal wheel are removed from the folding frame, the bundled folding frame, the push rod and the universal wheel can be put into a backpack or a handbag for carrying. It can be seen that the cargo cart of the utility model solves the problem that the existing cargo cart is still relatively large in size after being folded and stored, making it inconvenient to carry. BRIEF DESCRIPTION OF THE DRAWINGS
[0036] Figure 1 This is a structural diagram of the appearance of the folding frame of the utility model cargo carrier when it is fully unfolded;
[0037] Figure 2 is Figure 1 The appearance structure diagram after removing the bottom pad on the basis of;
[0038] Figure 3 Yes Figure 1 The appearance structure diagram of the folding frame after folding and storage, wherein the push rod, universal wheel, connecting seat, clamp lock, bottom pad and other components are removed in this diagram;
[0039] Figure 4 is Figure 2 The appearance structure diagram after the cloth body is removed on the basis of the above;
[0040] Figure 5 is Figure 4 The state diagram after the movable sleeve is moved upward a certain distance based on the above;
[0041] Figure 6 yes Figure 5 Exploded diagram of
[0042] Figure 7 yes Figure 6 An enlarged view of the second column in the upper right corner and the third rod connected to it. DETAILED DESCRIPTION
[0043] The present invention will be further described in detail below in conjunction with specific embodiments, but the implementation methods of the present invention are not limited thereto.
[0044] like Figures 1 to 7 As shown, the utility model provides a foldable storage vehicle, which includes a folding frame 100 , a push rod 200 , universal wheels 300 and a fabric body 400 .
[0045] See also Figures 4 to 6 The folding frame 100 includes a first column 110, a movable sleeve 120, a second column 130, and a telescopic assembly 140. The movable sleeve 120 is sleeved on the periphery of the first column 110 and can move along the first column 110. There are four second columns 130, and the four second columns 130 are distributed around the first column 110. There are four groups of telescopic assemblies 140, and the inner side of each group of telescopic assemblies 140 is connected to the first column 110 and the movable sleeve 120 at the same time, and the outer side is connected to the second column 130. Among them, when the movable cover 120 moves along the first column 110 in a first direction, the movable cover 120 will drive the four second columns 130 to move toward the first column 110 with the help of four sets of telescopic components 140; when the movable cover 120 moves along the first column 110 in a second direction opposite to the first direction, the movable cover 120 will drive the four second columns 130 to move away from the first column 110 with the help of four sets of telescopic components 140.
[0046] See also Figures 4 to 6 The push rod 200 is detachably connected to the top end of the first column 110 .
[0047] See also Figures 4 to 6 There are four universal wheels 300 , and the four universal wheels 300 are detachably connected to the bottoms of the four second columns 130 .
[0048] See also Figure 2 and Figure 3 The cloth body 400 includes a peripheral surface 410 and a bottom surface 420. The peripheral surface 410 surrounds the periphery of the four second pillars 130 and is fixed to the outer walls of the four second pillars 130. The bottom surface 420 is connected to the bottom of the peripheral surface 410, and the bottom surface 420 is penetrated by the bottoms of the four second pillars 130. When the movable sleeve 120 moves to the extreme position along the first pillar 110 in the second direction, the peripheral surface 410 and the bottom surface 420 are stretched and tightened by the four second pillars 130, see Figure 2When the movable sleeve 120 moves to the limit position along the first column 110 in the first direction, the peripheral surface 410 and the bottom surface 420 are wrinkled accordingly with the movement of the second column 130, see Figure 3 .
[0049] Preferably, see Figure 2 When the movable sleeve 120 moves to the extreme position along the first column 110 in the second direction, the peripheral surface 410 is stretched and tightened into a rectangular frame structure by the four second columns 130, that is, at this time, the four second columns 130 serve as four vertical sides to stretch and tighten the peripheral surface 410 so that the peripheral surface 410 maintains a rectangular frame structure. In other words, when the cloth body 400 is manufactured, it is manufactured in the form of a rectangular frame structure, consisting of a rectangular bottom surface and four rectangular vertical surfaces sewn above the rectangular bottom surface. When the folding frame 100 is in a folded and stored state, the cloth body 400 will have corresponding wrinkles and will also be folded and stored. When the folding frame 100 is in a fully unfolded state, the cloth body 400 will be unfolded into the proper rectangular frame structure.
[0050] Preferably, in some embodiments, the rectangular frame structure of the cloth body 400 after unfolding is a rectangular frame structure in the form of a cuboid, that is, when the cloth body 400 is manufactured, the four rectangular facades of the peripheral surface 410 are different, two of which are consistent and slightly longer in length, and the other two are consistent and slightly shorter in length.
[0051] In order to match the structural form of the above-mentioned cloth body 400, the arrangement of the four groups of telescopic components 140 also needs to be limited accordingly. Specifically, the four groups of telescopic components 140 are not evenly distributed around the first column 110, but the angle between two groups of telescopic components 140 is less than 90°, and the angle between the other two groups of telescopic components 140 is also less than 90°, and then the four groups of telescopic components 140 are distributed in a bilaterally symmetrical manner. For example, the angle between two groups of telescopic components 140 is α, and the angle between the other two groups of telescopic components 140 is also α, and then the four groups of telescopic components 140 are distributed in a bilaterally symmetrical manner, wherein α is between 65° and 85°.
[0052] Thus, when the movable sleeve 120 moves to the extreme position along the first column 110 in the second direction, the cloth body 400 will be stretched and tightened to form a rectangular frame structure in the form of a cuboid (see Figure 2 ), the rectangular frame structure in the form of a cuboid is more beautiful and more convenient to use.
[0053] In some embodiments, the telescopic assembly 140 may adopt the following structure.
[0054] See also Figure 4 and Figure 5The telescopic assembly 140 includes a first rod 141 , a second rod 142 , a third rod 143 and a fourth rod 144 .
[0055] One end of the first rod body 141 is hinged to the movable sleeve 120 .
[0056] One end of the second rod 142 is hinged to the bottom of the first column 110 , and the middle portion of the second rod 142 is hinged to the middle portion of the first rod 141 .
[0057] One end of the third rod 143 is hinged to one end of the first rod 141 away from the movable sleeve 120 , and the other end of the third rod 143 can slide along the extending direction of the second column 130 .
[0058] One end of the fourth rod 144 is hinged to one end of the second rod 142 away from the first column 110, and the other end is hinged to the bottom of the second column 130. The middle part of the fourth rod 144 is hinged to the middle part of the third rod 143.
[0059] The first direction mentioned above is a direction from the bottom of the first column 110 to the top thereof, and the second direction mentioned above is a direction from the top of the first column 110 to the bottom thereof.
[0060] Preferably, see Figure 6 The second rod body 142 is hinged to the bottom of the first column 110 through the ear seat 111, and the ear seat 111 is fixed to the bottom of the first column 110.
[0061] Preferably, see Figures 5 to 7 The second column 130 is provided with a strip groove 131, and the side wall of the strip groove 131 is provided with a slide groove 132 extending along the axial direction of the second column 130 (see Figure 7 ), one end of the third rod body 143 is embedded in the strip groove 131 and passes through the raised slider 1431 (see Figure 7 ) is slidably matched with the slide groove 132.
[0062] Preferably, see Figure 5 The first rod body 141 passes through a preset slot in the middle of the second rod body 142 and is hinged to the second rod body 142 at the passing position, and the third rod body 143 passes through a preset slot in the middle of the fourth rod body 144 and is hinged to the fourth rod body 144 at the passing position.
[0063] Therefore, when the movable sleeve 120 is pushed by hand to move from the top of the first column 110 to the bottom thereof, the movable sleeve 120 will drive the first rod 141 to rotate, and the rotation of the first rod 141 will drive the second rod 142 and the third rod 143 hinged thereto to rotate, and the rotation of the third rod 143 will drive the fourth rod 144 hinged thereto to rotate, and finally the entire telescopic assembly 140 will extend outward in the radial direction, so that the second column 130 moves away from the first column 110; On the contrary, when the movable sleeve 120 is pulled by hand from the bottom of the first column 110 to the top thereof, the movable sleeve 120 will drive the first rod body 141 to rotate, and the rotation of the first rod body 141 will drive the second rod body 142 and the third rod body 143 hinged thereto to rotate, and the rotation of the third rod body 143 will drive the fourth rod body 144 hinged thereto to rotate, and finally the entire telescopic assembly 140 will shorten inwardly in the radial direction, thereby causing the second column 130 to move toward the direction close to the first column 110.
[0064] Preferably, when the movable cover 120 moves from the top to the bottom of the first column 110, in order to limit the extreme position of the movable cover 120, a limit lock 121 is further provided on the movable cover 120, and a bayonet 112 matching the limit lock 121 is provided at the bottom area of the first column 110. The specific structure of the limit lock 121 and the bayonet 112 are consistent with the structure of the limit lock and the bayonet on the current umbrella, and the working principle is also consistent, so the present application will not elaborate on the structure and working principle of the limit lock 121 and the bayonet 112.
[0065] With the above-mentioned limit lock 121 and bayonet 112, when the movable cover 120 moves to the bottom of the first column 110, the lock tongue part of the limit lock 121 will be automatically locked into the bayonet 112 by the action of the spring, so that the movable cover 120 is locked and cannot move, thereby allowing the folding frame 100 to maintain a fully unfolded state. When it needs to be unlocked, pressing the raised part of the limit lock 121 can compress the spring and cause the lock tongue part to disengage from the bayonet 112. After disengagement, the movable cover 120 is unlocked, and then the movable cover 120 can move toward the top of the first column 110, so that the folding frame 100 can be folded and stored.
[0066] In some embodiments, the cargo carrier of the present invention further includes a connecting seat 500 and a locking sleeve 600 .
[0067] See also Figures 4 to 6The push rod 200 is connected to the top of the first column 110 via the connecting seat 500. The connecting seat 500 is detachably plugged into the top of the first column 110. The lower half of the connecting seat 500 is provided with a threaded column 510. The locking sleeve 600 is sleeved on the periphery of the first column 110 and can move along the first column 110. The inner wall of the locking sleeve 600 is provided with an internal thread 610 matching the threaded column 510. When the connecting seat 500 is plugged into the top of the first column 110, the connecting seat 500 is screwed and tightened with the threaded column 510 by the internal thread 610 of the locking sleeve 600, so as to achieve fixation with the first column 110.
[0068] Preferably, see Figure 6 The connecting seat 500 is also provided with a prism 530 with a regular hexagonal outer contour at the bottom of the threaded column 510, and correspondingly, the top of the first column 110 is provided with a prism hole 113 with a regular hexagonal cross-section that matches the prism 530.
[0069] The cooperation between the prism 530 and the prism hole 113 can prevent the connection base 500 from rotating after being inserted into the top of the first column 110. That is, when the connection base 500 is inserted into the top of the first column 110, the prism 530 is inserted into the prism hole 113, and then the locking sleeve 600 is screwed and tightened with the threaded column 510 through the internal thread 610. After tightening, the connection base 500 is firmly fixed on the top of the first column 110, and the connection base 500 is restricted by the cooperation between the prism 530 and the prism hole 113 and cannot rotate relative to the first column 110. When the connection base 500 needs to be removed, the locking sleeve 600 is loosened to remove the connection base 500 from the top of the first column 110.
[0070] In some embodiments, the angle between the push rod 200 and the first column 110 is adjustable.
[0071] For details, see Figures 4 to 6The cargo carrier of the utility model further comprises a clamp lock 700. The connecting seat 500 is formed with an ear plate 520 above the threaded column 510, and the ear plate 520 is provided with a first through hole 521. The end of the push rod 200 connected to the connecting seat 500 is provided with a U-shaped clamp plate 210, and the U-shaped clamp plate 210 is clamped on both sides of the ear plate 520, and the thickness of the clamping groove 211 of the U-shaped clamp plate 210 is slightly greater than the thickness of the ear plate 520, and the U-shaped clamp plate 210 is provided with a second through hole 212 matching the first through hole 521. The clamp lock 700 comprises a threaded rod 710 and a threaded sleeve 720. The threaded rod 710 passes through the second through hole 212 and the first through hole 521. The threaded sleeve 720 is screwed onto the threaded rod 710 . When the threaded sleeve 720 is screwed onto and tightened relative to the threaded rod 710 , the threaded sleeve 720 squeezes the outer wall of the U-shaped clamping plate 210 , so that the U-shaped clamping plate 210 clamps the ear plate 520 .
[0072] That is, when the angle between the push rod 200 and the first column 110 needs to be adjusted, the threaded sleeve 720 can be loosened. After loosening, since the thickness of the clamping groove 211 of the U-shaped clamping plate 210 is slightly larger than the thickness of the ear plate 520, the push rod 200 can be rotated to adjust the angle between the push rod 200 and the first column 110. After adjustment, the threaded sleeve 720 can be tightened to allow the U-shaped clamping plate 210 to clamp the ear plate 520.
[0073] Since the angle between the push rod 200 and the first column 110 is adjustable, the inclination angle of the push rod 200 can be adjusted according to different heights or usage habits when the cargo carrier of the utility model is in use, thereby improving the comfort and experience during use.
[0074] In some embodiments, the length of the push rod 200 can be extended or shortened, and a handle 220 for easy handholding is disposed at one end of the push rod 200 away from the first column 110 .
[0075] The structure of the push rod 200 that can be extended or shortened can adopt the same structure as the existing telescopic tube, and when the push rod 200 is extended or shortened to a certain length, it can be locked and stably maintained at the length. The structure of the push rod 200 that can be extended or shortened belongs to the prior art, so this application does not make a more specific description of the structure.
[0076] In some embodiments, the cargo carrier of the present invention further comprises a bottom pad 800, which is an independent component. Figure 1 When the peripheral surface 410 and the bottom surface 420 are stretched and tightened by the four second columns 130 , the bottom pad 800 can pass through the first columns 110 and be laid on top of the four sets of telescopic components 140 .
[0077] The bottom pad 800 can be made of a woven material with cotton material in the middle. The bottom pad 800 can shield the telescopic assembly 140 below it, thereby preventing the items from colliding with the telescopic assembly 140 or even getting stuck in the telescopic assembly 140 and affecting the folding of the cargo carrier when the items are placed.
[0078] In the present invention, the state of the folding frame 100 can be changed by changing the position of the movable cover 120, that is, by moving the movable cover 120 downward along the first column 110, the four second columns 130 can be driven to move away from the first column 110 with the help of the four sets of telescopic components 140, so that the folding frame can be unfolded; by moving the movable cover 120 upward along the first column 110, the four second columns 130 can be driven to move toward the first column 110 with the help of the four sets of telescopic components 140, so that the folding frame can be folded and stored.
[0079] When the cargo carrier is needed, the movable cover 120 can be moved downward along the first column 110 to the limit position and the movable cover 120 can be locked by the limit lock 121. Figure 2 , the folding frame 100 will be in a fully unfolded state, the peripheral surface 410 and the bottom surface 420 of the cloth body 400 will be stretched and tightened by the four second pillars 130, and the peripheral surface 410 and the bottom surface 420 of the cloth body 400 will be surrounded to form a cavity, and then the bottom pad 800 will be laid on top of the four sets of telescopic components 140 in the cavity (see Figure 1 ), and then, the objects can be placed in the cavity, so that the cargo carrier can realize the function of carrying objects.
[0080] When the cargo carrier needs to be stored, the movable sleeve 120 can be moved upward along the first column 110 to the limit position. Figure 3 , the folding frame 100 will be in a folded storage state, the four second columns 130 will move to a position close to the first column 110, and the cloth body 400 will be wrinkled accordingly with the movement of the second columns 130. At this time, since the four second columns 130 are close to and surround the first column 110, the folding frame 100 will be gathered into a bundle (see Figure 3 ), and at the same time, since the push rod 200, the universal wheel 300, the connecting seat 500, the clamping lock 700 and the bottom pad 800 are all detachable, after the push rod 200, the universal wheel 300, the connecting seat 500, the clamping lock 700 and the bottom pad 800 are detached, the bundled folding frame 100, the push rod 200, the universal wheel 300, the connecting seat 500, the clamping lock 700 and the bottom pad 800 can all be put into a backpack or a handbag for easy carrying. Among them, after the folding frame 100 is stored in a bundle, a circle of Velcro strap can be wrapped around its periphery to make it bound and tied.
[0081] In summary, the cargo carrier of the present invention effectively solves the problem that the existing cargo carrier is still relatively large in size after being folded and stored, making it inconvenient to carry.
[0082] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A foldable cargo carrier, characterized in that: It comprises a folding frame (100), a push rod (200), a universal wheel (300) and a cloth body (400); The folding frame (100) comprises a first column (110), a movable sleeve (120), a second column (130) and a telescopic assembly (140); the movable sleeve (120) is sleeved on the periphery of the first column (110) and can move along the first column (110); the number of the second columns (130) is four, and the four second columns (130) are distributed around the first column (110); the number of the telescopic assemblies (140) is four groups, and the inner side of each group of the telescopic assemblies (140) is connected to the first column (110) and the movable sleeve (120) at the same time, and the outer side is connected to the first column (110) and the movable sleeve (120). The movable sleeve (120) is connected to the second column (130); wherein, when the movable sleeve (120) moves along the first column (110) in a first direction, the movable sleeve (120) will drive the four second columns (130) to move in a direction close to the first column (110) with the help of the four groups of telescopic components (140); when the movable sleeve (120) moves along the first column (110) in a second direction opposite to the first direction, the movable sleeve (120) will drive the four second columns (130) to move in a direction away from the first column (110) with the help of the four groups of telescopic components (140); The push rod (200) is detachably connected to the top end of the first column (110); The number of the universal wheels (300) is four, and the four universal wheels (300) are detachably connected to the bottoms of the four second columns (130); The cloth body (400) includes a peripheral surface (410) and a bottom surface (420); the peripheral surface (410) surrounds the periphery of the four second pillars (130) and is fixed to the outer walls of the four second pillars (130); the bottom surface (420) is connected to the bottom of the peripheral surface (410), and the bottom surface (420) is penetrated by the bottoms of the four second pillars (130); wherein, when the movable sleeve (120) moves along the first pillar (110) to the second direction to the extreme position, the peripheral surface (410) and the bottom surface (420) are stretched and tightened by the four second pillars (130).
2. A foldable cargo carrier according to claim 1, characterized in that: When the movable sleeve (120) moves along the first column (110) in the second direction to an extreme position, the peripheral surface (410) is stretched open by the four second columns (130) and tightened to form a rectangular frame structure.
3. A foldable cargo carrier according to claim 2, characterized in that: The telescopic assembly (140) comprises a first rod (141), a second rod (142), a third rod (143) and a fourth rod (144); One end of the first rod body (141) is hinged to the movable sleeve (120); One end of the second rod body (142) is hinged to the bottom of the first column (110), and the middle part of the second rod body (142) is hinged to the middle part of the first rod body (141); One end of the third rod body (143) is hinged to one end of the first rod body (141) away from the movable sleeve (120), and the other end can slide along the extension direction of the second column (130); One end of the fourth rod (144) is hinged to one end of the second rod (142) away from the first column (110), and the other end is hinged to the bottom of the second column (130); and the middle part of the fourth rod (144) is hinged to the middle part of the third rod (143); The first direction is a direction from the bottom of the first column (110) to the top thereof, and the second direction is a direction from the top of the first column (110) to the bottom thereof.
4. A foldable cargo carrier according to claim 3, characterized in that: The second rod body (142) is hinged to the bottom of the first column (110) via an ear seat (111), and the ear seat (111) is fixed to the bottom of the first column (110).
5. The foldable cargo carrier according to claim 3, characterized in that: The second column (130) is provided with a strip groove (131), and the side wall of the strip groove (131) is provided with a slide groove (132) extending along the axial direction of the second column (130), and one end of the third rod body (143) is embedded in the strip groove (131) and slidably cooperates with the slide groove (132) through a protruding slider (1431).
6. The foldable cargo carrier according to claim 1, characterized in that: The cargo carrier also includes a connecting seat (500) and a locking sleeve (600); The push rod (200) is connected to the top of the first column (110) via the connecting seat (500); the connecting seat (500) is detachably plugged into the top of the first column (110); and a threaded column (510) is provided at the lower half of the connecting seat (500); The locking sleeve (600) is sleeved on the periphery of the first column (110) and can move along the first column (110), and the inner wall of the locking sleeve (600) is provided with an internal thread (610) matching the threaded column (510); When the connecting seat (500) is inserted into the top of the first column (110), the connecting seat (500) is screwed and tightened with the threaded column (510) by means of the internal thread (610) of the locking sleeve (600), thereby achieving fixation with the first column (110).
7. The foldable cargo carrier according to claim 6, characterized in that: The angle between the push rod (200) and the first column (110) is adjustable.
8. The foldable cargo carrier according to claim 7, characterized in that: The cargo carrier also includes a clamp lock (700); The connection seat (500) is formed with an ear plate (520) above the threaded column (510), and the ear plate (520) is provided with a first through hole (521); A U-shaped clamping plate (210) is provided at one end of the push rod (200) connected to the connecting seat (500), the U-shaped clamping plate (210) is clamped on both sides of the ear plate (520), and the thickness of the clamping groove (211) of the U-shaped clamping plate (210) is slightly greater than the thickness of the ear plate (520), and the U-shaped clamping plate (210) is provided with a second through hole (212) matching the first through hole (521); The clamp lock (700) comprises a threaded rod (710) and a threaded sleeve (720); the threaded rod (710) passes through the second through hole (212) and the first through hole (521); the threaded sleeve (720) is screwed onto the threaded rod (710); when the threaded sleeve (720) is screwed and tightened relative to the threaded rod (710), the threaded sleeve (720) squeezes the outer wall of the U-shaped clamp plate (210), so that the U-shaped clamp plate (210) clamps the ear plate (520).
9. The foldable cargo carrier according to claim 1, characterized in that: The length of the push rod (200) can be extended or shortened, and a handle (220) is provided at one end of the push rod (200) away from the first column (110) for easy handholding.
10. The foldable cargo carrier according to claim 1, characterized in that: The cargo carrier also includes a bottom pad (800); The base pad (800) is an independent component; When the peripheral surface (410) and the bottom surface (420) are stretched and tightened by the four second columns (130), the bottom pad (800) can pass through the first columns (110) and be laid on top of the four groups of telescopic components (140).