Platform cart convenient to use

Abstract

A flatbed trolley convenient to use comprises a trolley plate, a movable protection plate, a gear disc, a driving rod, a fastening retaining ring, a positioning locking strip and a shifting rod, the lower portion of the trolley plate is connected with a fixing support, the fixing support is connected with self-locking universal wheels, the upper portion of the trolley plate is provided with a fixed protection plate, the upper portion of the fixed protection plate is connected with a push rod, and the two sides of the fixed protection plate are provided with installation supporting plates. A fastening supporting sleeve is arranged outside the mounting supporting plate, a containing groove is formed in the mounting supporting plate, the containing groove is matched with the gear disc, the containing groove is connected with the gear disc, the mounting supporting plate is attached to the outer portion of the gear disc, the driving rod is connected into the gear disc, the driving rod is sequentially connected with the fastening supporting sleeve, the mounting supporting plate and the gear disc, the driving rod is provided with a position control groove, and the gear disc is provided with a position control protruding block. The outer end of the driving rod is provided with a rotating wheel, the rotating wheel is attached to the fastening supporting sleeve, the inner end of the driving rod is provided with a connecting rod, the connecting rod is connected with the fixing protection plate, the connecting rod is divided into a first connecting rod body and a second connecting rod body, and the first connecting rod body is connected with the second connecting rod body.

Description

Technical Field

[0001] The utility model relates to the field of flatbed carts, in particular to a flatbed cart that is easy to use. Background Art

[0002] The existing patent (Announcement No.: CN207747914U) proposes a flatbed trolley, including: a flatbed, wheels, a pull rod and a handle, wherein the wheel is rotatably connected to the flatbed, the handle is connected to one end of the pull rod and is vertically connected in a "T" shape, the other end of the pull rod is connected to a cone block, a cavity that can accommodate the pull rod is formed in the flatbed, the open end of the cavity is located on one side of the flatbed, and a block for blocking the cone block is provided at the opening of the cavity, the block is connected to the flatbed, and a hole is provided on the block, the inner diameter of the hole is larger than the outer diameter of the pull rod and smaller than the outer diameter of the cone block. However, in this device, the "flatbed" carries the goods, and the goods are directly placed on the "flatbed". The "flatbed" has a limited bearing area and there are no shielding objects around it. After the cart is moved by force, the goods are prone to move or even fall, causing damage. If a fixed guard plate is added to the upper part of the "flatbed", it will bring inconvenience to the loading and unloading operations of the goods, which has disadvantages. Summary of the invention

[0003] The utility model aims at solving the above-mentioned deficiencies in the prior art and provides a flatbed cart which is easy to move, convenient for transporting and transferring goods, and can limit and support the periphery of the goods to enhance the protection of the goods and improve the stability and safety during the transportation of the goods. In addition, the guard plate structure is flexible and can be flexibly raised and lowered according to the actual use situation, so as to facilitate the loading and unloading of goods and improve the efficiency of the cargo loading and unloading operations.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A flatbed cart that is easy to use includes a vehicle plate, a movable guard plate, a gear plate, a driving rod, a fastening buckle, a positioning lock strip, and a lever. The lower part of the vehicle plate is connected to a fixed bracket, and the fixed bracket is connected to a self-locking universal wheel. The upper part of the vehicle plate has a fixed guard plate, and the upper part of the fixed guard plate is connected to a push rod. The two sides of the fixed guard plate are provided with mounting support plates, and the outside of the mounting support plate is provided with a fastening support sleeve. The inside of the mounting support plate is provided with a placement groove, and the placement groove is adapted to the gear plate, and the placement groove is connected to the gear plate. The outside of the gear plate fits the mounting support plate, and the inside of the gear plate is connected to the driving rod. The driving rod is connected to the fastening support sleeve, the mounting support plate, and the gear plate in sequence. The driving rod has a control groove, and the gear plate has a control protrusion. The control protrusion is adapted to the control groove, and the control protrusion is connected to the control groove. The outer end of the driving rod has a rotating wheel, and the rotating wheel fits the fastening support sleeve. The inner end of the driving rod has a connecting rod, and the connecting rod is connected to the fixed guard plate. The connecting rod is divided into No. 1 connecting rod and No. 2 connecting rod. No. 1 connecting rod is connected to No. 2 connecting rod. No. 1 connecting rod has a docking rod, and No. 2 connecting rod has docking slots on both sides. The docking rod is adapted to the docking slot, and the docking rod is connected to the docking slot.

[0006] The utility model discloses a fastening support sleeve externally connected to a fastening buckle, a fastening card plate is provided on the inner side of the fastening buckle, card plate through holes are provided on both sides of the fastening support sleeve, a driving rod has a fastening card slot, the fastening card slot and the card plate through hole are adapted to the fastening card plate, the fastening card plate passes through the card plate through hole, the fastening card plate is connected to the fastening card slot, the fastening card slot has a plurality of positioning lock slots, the fastening card plate has a lock strip through hole, the positioning lock slot and the lock strip through hole are adapted to the positioning lock strip, the positioning lock strip passes through the lock strip through hole, the positioning lock strip is connected to the positioning lock slot, and the positioning lock strip has a center through hole.

[0007] The fastening buckle described in the utility model is divided into a left fastening buckle and a right fastening buckle. The left fastening buckle is connected to the right fastening buckle. The left fastening buckle is provided with a position control bracket on the outside. The inner side of the position control bracket is provided with a central support rod. The central support rod is adapted to the central through hole. The central support rod passes through the central through hole. The upper part of the position control bracket is provided with a limiting through hole. The upper part of the positioning lock strip is provided with a lever groove. The lever groove and the limiting through hole are adapted to the lever. The lever passes through the limiting through hole. The lower end of the lever is connected to the lever groove. Beneficial Effects

[0008] The push rod of the utility model cooperates with the self-locking universal wheel to increase the convenience of the overall movement of the vehicle plate, which is convenient for the transportation and transfer of goods. By adding a guard plate on the outside of the vehicle plate, the periphery of the goods is limited and supported to prevent the goods from moving, deviating or even falling on the vehicle plate after the cart is moved under force, thereby enhancing the protection of the goods and improving the stability and safety of the goods during transportation.

[0009] The utility model discloses a driving rod increases the connection fulcrum between the gear plate and the installation support plate, and provides a force fulcrum for the driving rod to drive the gear plate to rotate synchronously through the embedded plug-in connection with the gear plate, and the racks on both sides of the movable guard plate are meshed and connected with the gear plate, so that when the rotating wheel drives the driving rod and the gear plate to rotate, the rack drives the movable guard plate to perform longitudinal linear lifting and lowering displacement on the outside of the vehicle plate, and the convenience of using the cart is increased by changing the height of the position of the movable guard plate. When the movable guard plate moves down to its upper surface and is parallel to the upper surface of the vehicle plate, it is convenient to load and unload goods and improve the efficiency of cargo loading and unloading operations; when the movable guard plate moves up to its lower surface and is parallel to the lower surface of the vehicle plate, it and the fixed guard plate are used to enclose the vehicle plate around to prevent the goods from being offset and moving or even falling during transportation and transfer, thereby increasing the protection of the goods and improving the stability and safety during cargo transportation. Moreover, the movable guard plate can be raised and lowered by rotating the rotating wheel, and the operation is convenient.

[0010] The utility model discloses a limit support rod passing through a limit sliding hole to connect the anti-dropping baffle plate, increases a connecting fulcrum between the vehicle plate and the movable guard plate, and limits the moving range of the movable guard plate, so that the movable guard plate can be lifted and lowered in a longitudinal straight line while maintaining its lateral position unchanged, and prevents the movable guard plate from falling off from the vehicle plate, thereby improving the structural stability.

[0011] The utility model discloses a kind of novel structure, and the utility model discloses a kind of structure, and the utility model discloses a kind of structure, and the utility model discloses a kind of structure, and the utility model discloses a kind of structure, and the utility model discloses a kind of structure, and the utility model discloses a kind of structure, and the utility model discloses a kind of structure, and the utility model discloses a kind of structure, and the utility model discloses a kind of structure, and the utility model discloses a kind of structure, and the utility model discloses a kind of structure, and the utility model discloses a kind of structure, and the utility model discloses a kind of structure, and the utility model discloses a kind of structure, and the utility model discloses a kind of structure, and the utility model discloses a kind of structure

[0012] The utility model discloses the utility model is convenient to move, and is convenient for the transportation and transfer of goods. It can also limit and support the periphery of the goods, enhance the protection of the goods, improve the stability and safety of the goods during transportation, and the guard plate structure is flexible and can be flexibly raised and lowered according to the actual use situation, so that the goods are convenient to load and unload and the efficiency of the goods loading and unloading operation is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1The utility model is a schematic structural diagram of a flatbed cart that is easy to use.

[0014] Figure 2 This is a rear view of the easy-to-use flatbed cart structure described in the utility model.

[0015] Figure 3 This is a structural cross-sectional view of a flatbed cart that is easy to use according to the utility model.

[0016] Figure 4 This is a cross-sectional view of the structure of a flatbed cart that is easy to use according to the utility model.

[0017] Figure 5 This is a schematic diagram of the driving rod structure of the utility model.

[0018] Figure 6 This is a schematic diagram of the fastening buckle structure described in the utility model.

[0019] Figure 7 This is a schematic diagram of the driving structure of the movable guard plate described in the utility model.

[0020] Figure 8 This is a cross-sectional view of the driving rod limiting structure described in the utility model.

[0021] Fig. 9 This is an exploded view of the No. 1 connecting rod and No. 2 connecting rod structure described in the utility model.

[0022] Fig.10 This is a schematic diagram of the vehicle plate structure described in the utility model.

[0023] Fig.11 The utility model Figure 3 A magnified view of the local structure.

[0024] Fig.12 The utility model Fig. 9 A magnified view of the local structure. DETAILED DESCRIPTION

[0025] The utility model is further described in detail below according to the accompanying drawings and embodiments:

[0026] Embodiment 1:

[0027] A flatbed cart that is easy to use includes a vehicle plate 01, a movable guard plate 05, a gear plate 09, a driving rod 15, a fastening buckle 20, a positioning lock strip 24, and a lever 31. The lower part of the vehicle plate 01 is connected to a fixed bracket 37, and the fixed bracket 37 is connected to a self-locking universal wheel 02. The upper part of the vehicle plate 01 has a fixed guard plate 04, and the upper part of the fixed guard plate 04 is connected to a push rod 03. The push rod 03 cooperates with the self-locking universal wheel 02 to increase the overall mobility of the vehicle plate 01 and facilitate the transportation and transfer of goods. The guard plate 04 is used to add a guard plate to the outside of the vehicle plate 01 to limit the periphery of the cargo to prevent the cargo from shifting or even falling on the vehicle plate 01 after the cart is moved by force, thereby enhancing the protection of the cargo and improving the stability and safety of the cargo during transportation. The two sides of the fixed guard plate 04 are provided with mounting support plates 11, the outside of the mounting support plate 11 is provided with a fastening support sleeve 19, and the inside of the mounting support plate 11 is provided with a placement groove 06, which is adapted to the gear plate 09, and the placement groove 06 is connected to the gear plate 09. The gear plate 09 is externally fitted with the mounting support plate 11, and the gear plate 09 is internally connected with a driving rod 15, which is sequentially connected with the fastening support sleeve 19, the mounting support plate 11, and the gear plate 09. The driving rod 15 has a position control groove 13, and the gear plate 09 has a position control convex block 12, which is adapted to the position control groove 13, and the position control convex block 12 is connected to the position control groove 13. The outer end of the driving rod 15 has a rotating wheel 14, and the rotating wheel 14 is fitted with the fastening support sleeve 19. The inner end of the driving rod 15 has a connecting rod 13. Rod 16, connecting rod 16 is connected to fixed guard plate 04, connecting rod 16 is divided into No. 1 connecting rod 161 and No. 2 connecting rod 162, No. 1 connecting rod 161 has docking rod 17, No. 2 connecting rod 162 has docking slots 18 on both sides, docking rod 17 is adapted to docking slot 18, docking rod 17 is connected to docking slot 18, driving rod 15 increases the connection fulcrum between gear plate 09 and mounting support plate 11, and passes through the gear plate 09 The embedded connection provides a force fulcrum for the driving rod 15 to drive the gear plate 09 to rotate synchronously. The racks 10 on both sides of the movable guard plate 05 are meshed and connected with the gear plate 09, so that when the rotating wheel 14 drives the driving rod 15 and the gear plate 09 to rotate, the rack 10 drives the movable guard plate 05 to perform a longitudinal linear lifting displacement outside the vehicle plate 01. By changing the height of the position of the movable guard plate 05, the convenience of using the cart is increased. When the movable guard plate 05 moves down to its upper surface and is parallel to the upper surface of the vehicle plate 01, it is convenient for loading and unloading of goods and improves the efficiency of cargo loading and unloading operations. When the movable guard plate 05 moves up to its lower surface and is parallel to the lower surface of the vehicle plate 01, it and the fixed guard plate 04 enclose the vehicle plate 01 on all sides to prevent the goods from shifting and moving during transportation and transfer, or even falling, thereby increasing the protection of the goods and improving the stability and safety of the goods during transportation. The movable guard plate 05 can be raised and lowered by rotating the wheel 14, which is easy to operate.

[0028] Embodiment 2:

[0029] The utility model discloses a fastening support sleeve 19 externally connected to a fastening buckle 20, the fastening buckle 20 has a fastening card plate 21 on the inner side, the fastening support sleeve 19 has card plate through holes 23 on both sides, the driving rod 15 has a fastening card slot 22, the fastening card slot 22 and the card plate through holes 23 are adapted to the fastening card plate 21, the fastening card plate 21 passes through the card plate through holes 23, the fastening card plate 21 is connected to the fastening card slot 22, the fastening card slot 22 has a plurality of positioning lock slots 25, and the fastening card plate 21 has The lock bar through hole 36, the positioning lock groove 25, and the lock bar through hole 36 are adapted to the positioning lock bar 24. The positioning lock bar 24 passes through the lock bar through hole 36. The positioning lock bar 24 is connected to the positioning lock groove 25. The positioning lock bar 24 has a central through hole 35. The fastening buckles 20 on both sides are oppositely buckled and fixed to the outside of the fastening support sleeve 19. The fastening card plate 21 on the inner side increases the connection fulcrum between the fastening support sleeve 19 and the driving rod 15, and limits the position of the driving rod 15, so that When the lateral position and the longitudinal height are kept unchanged, the axial rotation adjustment is performed to avoid the movement and deviation, which affects the linkage effect between the components and improves the structural stability. A plurality of positioning lock grooves 25 are evenly distributed on the axial direction of the driving rod 15. When the positioning lock bar 24 is driven to move to the position in which it is embedded by rotating the knob 28, the driving rod 15 is braked and locked and cannot be rotated, so as to position and support the movable guard plate 05 in different supporting states. When the positioning lock bar 24 is driven to move to the position in which it is completely separated from the positioning lock groove 25 by rotating the knob 28 in the opposite direction, the braking fulcrum of the driving rod 15 disappears. At this time, the height of the movable guard plate 05 can be controlled and adjusted by rotating the rotating wheel 14. The structure is flexible and the operation is convenient. The No. 1 connecting rod 161 and the No. 2 connecting rod 162 are inserted and fixed in the docking slot 18 by the docking rod 17, which provides a force fulcrum for the synchronous positioning drive of the gear plates 09 on both sides.

[0030] Embodiment 3:

[0031] The fastening buckle 20 of the utility model is divided into a left fastening buckle 201 and a right fastening buckle 202. The left fastening buckle 201 is connected to the right fastening buckle 202. The left fastening buckle 201 has a position control bracket 34 on the outside. The position control bracket 34 has a central support rod 26 on the inside. The central support rod 26 is adapted to the central through hole 35. The central support rod 26 passes through the central through hole 35. The upper part of the position control bracket 34 has a limiting through hole 33. The upper part of the positioning lock strip 24 has a lever groove 32. The lever groove 32 and the limiting through hole 33 are adapted to the lever 31. The lever 31 passes through the limiting through hole 33. The lower end of the lever 31 is connected to the lever groove 32. This device is easy to move and convenient for cargo transportation and transfer. It also performs position limiting support on the periphery of the cargo, enhances cargo protection, improves stability and safety during cargo transportation, and the guard plate structure is flexible and can be flexibly raised and lowered according to actual usage, which is convenient for cargo loading and unloading and improves cargo loading and unloading operation efficiency.

[0032] Embodiment 4:

[0033] The upper part of the position control bracket 34 of the utility model is connected to the fixed support plate 27, and the threaded support rod 30 is connected to the fixed support plate 27 and the lever 31 in sequence. The threaded support rod 30 is connected to the lever 31 through a thread. The threaded support rod 30 has a knob 28, and the knob 28 fits the fixed support plate 27, and the fixed support plate 27 fits the circular baffle 29, and the circular baffle 29 is connected to the threaded support rod 30.

[0034] Embodiment 5:

[0035] The mounting support plate 11 of the utility model is connected to the movable guard plate 05, and the movable guard plate 05 has racks 10 on both sides, the racks 10 are meshed with the gear plate 09, and the gear plate 09 is connected to the rack 10, the movable guard plate 05 is fitted with the vehicle plate 01 inside, and the vehicle plate 01 has limit support rods 08 on both sides, and the movable guard plate 05 has limit sliding holes 07 on both sides, the limit support rods 08 are adapted to the limit sliding holes 07, the limit support rods 08 pass through the limit sliding holes 07, the limit support rods 08 are connected to the anti-detachment baffle 38, the anti-detachment baffle 38 fits the movable guard plate 05, and the limit support rods 08 pass through the limit sliding holes 07 to connect the anti-detachment baffle 38, increase the connection fulcrum between the vehicle plate 01 and the movable guard plate 05, and limit the position of the moving range of the movable guard plate 05, so that it can keep its lateral position unchanged, perform longitudinal linear lifting and lowering displacement, and prevent it from falling off and detaching from the vehicle plate 01, thereby improving the structural stability.

[0036] Embodiment 6:

[0037] Installation steps: First, assemble the left fastening buckle 201 structure, first place the positioning lock strip 24 on the inner side of the left fastening buckle 201, and the positioning lock strip 24 passes through the lock strip through-hole 36, the center support rod 26 passes through the center through-hole 35, the lever slot 32 corresponds to the position of the limit through-hole 33, then pass the lever 31 through the limit through-hole 33, and its lower end is embedded in the lever slot 32, and then the threaded support rod 30 is connected to the fixed support plate 27 and the lever 31 in sequence, until the inner surface of the knob 28 fits with the outer surface of the fixed support plate 27, and the threaded support rod 30 is fixed between the thread and the lever 31 Finally, the circular baffle 29 is placed outside the fixed support plate 27 and fixedly connected with the threaded support rod 30, and the inner surface of the circular baffle 29 is in contact with the outer surface of the fixed support plate 27. After the left fastening buckle 201 structure is assembled, the movable guard plate 05 driving structure is assembled. First, the gear plate 09 is inserted into the placement groove 06 and placed in the mounting support plate 11, and then the driving rod 15 is connected to the fastening support sleeve 19, the mounting support plate 11, and the gear plate 09 in sequence until the inner surface of the rotating wheel 14 is in contact with the outer surface of the fastening support sleeve 19, and the connecting rod 16 is inserted into the fixed guard plate 04, and The card plate through hole 23 corresponds to the position of the fastening card slot 22, the control protrusion 12 is embedded in the control groove 13, the docking rod 17 is embedded in the docking slot 18, and then the fastening buckle 20 is placed outside the fastening support sleeve 19, and the fastening buckles 20 on both sides are buckled and fixedly connected, the fastening card plate 21 passes through the card plate through hole 23 and is embedded in the fastening card slot 22, and the knob 28 is driven by the lever 31 to drive the positioning lock strip 24 to move to its embedded positioning lock slot 25, and then the movable guard plate 05 is placed outside the vehicle plate 01, and the movable guard plate 05 is fitted with the mounting support plate 11, and the two The side rack 10 is meshed with the gear plate 09, the limiting support rod 08 passes through the limiting sliding hole 07, and finally the anti-slip baffle 38 is placed on the outside of the movable guard plate 05 and fixedly connected to the limiting support rod 08, and the inner surface of the anti-slip baffle 38 is in contact with the outer surface of the movable guard plate 05, and the inner surface of the movable guard plate 05 is in contact with the vehicle plate 01. After the assembly of the driving structure of the movable guard plate 05 is completed, the push rod 03 is welded and fixed to the upper part of the fixed guard plate 04, the fixed bracket 37 is welded and fixed to the lower part of the vehicle plate 01, and the self-locking universal wheel 02 is installed and fixed to the bottom of the fixed bracket 37 to complete the installation.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. A flatbed cart that is easy to use, characterized by : comprising a vehicle plate (01), a movable guard plate (05), a gear plate (09), a driving rod (15), a fastening buckle (20), a positioning lock strip (24), and a lever (31); the lower part of the vehicle plate (01) is connected to a fixed bracket (37); the fixed bracket (37) is connected to a self-locking universal wheel (02); the upper part of the vehicle plate (01) is provided with a fixed guard plate (04); the upper part of the fixed guard plate (04) is connected to a push rod (03); both sides of the fixed guard plate (04) are provided with mounting support plates (11); the outer part of the mounting support plate (11) is provided with a fastening support sleeve (19); the inner part of the mounting support plate (11) is provided with a placement groove (06); the placement groove (06) is adapted to the gear plate (09); the placement groove (06) is connected to the gear plate (09); The gear plate (09) is fitted with an installation support plate (11) on the outside, the gear plate (09) is connected to a driving rod (15) on the inside, the driving rod (15) is connected to a fastening support sleeve (19), an installation support plate (11), and a gear plate (09) in sequence, the driving rod (15) has a position control groove (13), the gear plate (09) has a position control convex block (12), the position control convex block (12) is adapted to the position control groove (13), the position control convex block (12) is connected to the position control groove (13), the outer end of the driving rod (15) has a rotating wheel (14), the rotating wheel (14) The supporting sleeve (19) is fitted and fastened, the inner end of the driving rod (15) is provided with a connecting rod (16), the connecting rod (16) is connected to the fixed guard plate (04), the connecting rod (16) is divided into a No. 1 connecting rod (161) and a No. 2 connecting rod (162), the No. 1 connecting rod (161) is connected to the No. 2 connecting rod (162), the No. 1 connecting rod (161) has a docking rod (17), the No. 2 connecting rod (162) has docking slots (18) on both sides, the docking rod (17) is adapted to the docking slot (18), and the docking rod (17) is connected to the docking slot (18).

2. A convenient flatbed cart according to claim 1, characterized in that : The fastening support sleeve (19) is externally connected to the fastening buckle (20), the fastening buckle (20) has a fastening card plate (21) on the inner side, the fastening support sleeve (19) has card plate through holes (23) on both sides, the driving rod (15) has a fastening card slot (22), the fastening card slot (22) and the card plate through hole (23) are adapted to the fastening card plate (21), the fastening card plate (21) passes through the card plate through hole (23), the fastening card plate (21) is connected to the fastening card slot (22), the fastening card slot (22) has a plurality of positioning lock slots (25), the fastening card plate (21) has a lock bar through hole (36), the positioning lock slot (25) and the lock bar through hole (36) are adapted to the positioning lock bar (24), the positioning lock bar (24) passes through the lock bar through hole (36), the positioning lock bar (24) is connected to the positioning lock slot (25), and the positioning lock bar (24) has a central through hole (35).

3. A convenient flatbed cart according to claim 2, characterized in that The fastening buckle (20) is divided into a left fastening buckle (201) and a right fastening buckle (202), the left fastening buckle (201) is connected to the right fastening buckle (202), the left fastening buckle (201) is provided with a position control bracket (34) on the outside, the position control bracket (34) is provided with a central support rod (26) on the inside, the central support rod (26) is adapted to the central through hole (35), the central support rod (26) passes through the central through hole (35), the upper part of the position control bracket (34) is provided with a limit through hole (33), the upper part of the positioning lock strip (24) is provided with a lever groove (32), the lever groove (32) and the limit through hole (33) are adapted to the lever (31), the lever (31) passes through the limit through hole (33), and the lower end of the lever (31) is connected to the lever groove (32).

4. A convenient flatbed cart according to claim 3, characterized in that The upper part of the position control bracket (34) is connected to the fixed support plate (27), the threaded support rod (30) is connected to the fixed support plate (27) and the lever (31) in sequence, the threaded support rod (30) is connected to the lever (31) through a thread, the threaded support rod (30) has a knob (28), the knob (28) fits the fixed support plate (27), the fixed support plate (27) fits the circular baffle (29), and the circular baffle (29) is connected to the threaded support rod (30).

5. A convenient flatbed cart according to claim 4, characterized in that The mounting support plate (11) is connected to the movable guard plate (05), the movable guard plate (05) has racks (10) on both sides, the racks (10) are meshed with the gear plate (09), the gear plate (09) is connected to the racks (10), the movable guard plate (05) is fitted with the vehicle plate (01) inside, the vehicle plate (01) has limit support rods (08) on both sides, the movable guard plate (05) has limit sliding holes (07) on both sides, the limit support rods (08) are adapted to the limit sliding holes (07), the limit support rods (08) pass through the limit sliding holes (07), the limit support rods (08) are connected to the anti-slip baffle (38), and the anti-slip baffle (38) is fitted with the movable guard plate (05).

Images