CN211281110U - Four-wheel folding handcart - Google Patents

Abstract

The utility model discloses a handcart is folded to four-wheel, including sweep and support column, the support column is rotated through the pivot with the top of sweep one end and is connected, the bottom of sweep is rotated and is connected with four wheels that are the rectangle distribution, the bottom of support column is equipped with the cavity, the cavity internal rotation is connected with the screw rod, fixed the cup jointing has first gear on the screw rod, be equipped with the second gear with first gear engaged with in the cavity, the inner wall of second gear and cavity passes through the bull stick and rotates the connection, the inner wall and the fixedly connected with knob of cavity are run through to the one end of bull stick, one side that the sweep was kept away from to the support column is equipped with the spout, the one end of screw rod runs through the interior top of cavity and extends to the. The utility model discloses in through the setting of collapsible formula mechanism, make the shallow carry out free folding to the carrying of shallow has been made things convenient for.

Description

Four-wheel folding handcart

Technical Field

The utility model relates to a handcart technical field especially relates to handcart is folded to four-wheel.

Background

The handcart is a transport vehicle which is pushed and pulled by people and is the ancestor of all vehicles. While the technology of cart materials handling continues to advance, carts continue to be used as an indispensable handling tool. The trolley is widely used in production and life because of its low cost, simple maintenance, convenient operation, light weight, ability to work in places where motor vehicles are not convenient to use, and convenience in carrying lighter objects in short distance.

However, the existing trolley is simple in component mechanism, and the trolley cannot be freely folded, so that the portability of the trolley is affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the handcart can not be freely folded, and providing a four-wheel folding handcart, wherein the handcart forming mechanism is simple in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the four-wheel folding trolley comprises a trolley board and a supporting column, wherein the supporting column is rotatably connected with the top of one end of the trolley board through a rotating shaft, the bottom of the trolley board is rotatably connected with four wheels which are distributed in a rectangular shape, a cavity is arranged at the bottom of the supporting column, a screw rod is rotatably connected in the cavity, a first gear is fixedly sleeved on the screw rod, a second gear meshed with the first gear is arranged in the cavity, the second gear is rotatably connected with the inner wall of the cavity through a rotating rod, one end of the rotating rod penetrates through the inner wall of the cavity and is fixedly connected with a knob, a sliding groove is arranged on one side of the supporting column, which is far away from the trolley board, one end of the screw rod penetrates through the inner top of the cavity and extends into the sliding groove, a sliding block is sleeved on one end of the screw rod, which is located in the sliding groove, a, the clamping device is characterized in that a clamping rod is slidably inserted into the clamping block, a pedal is fixedly connected to the top of the clamping rod, a spring is sleeved on the clamping rod, and two ends of the spring are fixedly connected with the pedal and the clamping block respectively.

Preferably, the rotating shaft is sleeved with a torsion spring, and two ends of the torsion spring are respectively and fixedly connected with the supporting column and the vehicle plate.

Preferably, a locking screw is inserted into one end of the knob, and a plurality of locking grooves corresponding to the locking screw are arranged on the outer wall of the vehicle plate in an encircling manner.

Preferably, the clamping sleeve is fixedly sleeved at the bottom of the clamping rod.

Preferably, the top of the pedal is fixedly sleeved with a non-slip mat.

Preferably, a rubber sleeve is fixedly sleeved on the handle.

Has the advantages that:

1. when the supporting column needs to be folded, the turnbuckle is firstly rotated to put the supporting column into the cart board, then the knob is rotated to drive the rotating rod, the screw rod is driven to rotate through the meshing action between the first gear and the second gear, so that the handle is driven to move, the position of the handle is adjusted, and meanwhile, the clamping rod and the pedal are arranged, so that a user can conveniently brake the cart in a pedal mode;

2. meanwhile, the torsion spring can support the supporting column by a certain torsion force, the spring can support the clamping rod by a certain elasticity, and the locking screw can effectively fix the knob.

Drawings

Fig. 1 is a schematic structural view of a four-wheel folding cart according to the present invention;

fig. 2 is a schematic side view of the rotating rod of the four-wheel folding trolley of the present invention.

In the figure: the device comprises a base plate 1, support columns 2, a rotating shaft 3, wheels 4, a screw rod 5, a first gear 6, a second gear 7, a rotating rod 8, a knob 9, a sliding block 10, a handle 11, a clamping block 12, a clamping rod 13, a pedal 14, a spring 15, a locking screw 16, a clamping sleeve 17 and a turnbuckle 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, a four-wheel folding handcart comprises a handcart plate 1 and a support column 2, wherein the support column 2 is rotatably connected with the top of one end of the handcart plate 1 through a rotating shaft 3 and is used for supporting the column 2, the support column 2 is connected with the inner wall of the handcart plate 1 through a turnbuckle 18 and is used for driving the support column 2 to rotate, two ends of the turnbuckle 18 are respectively rotatably connected with the handcart plate 1 and the support column 2, the bottom of the handcart plate 1 is rotatably connected with four wheels 4 which are distributed in a rectangular shape, the handcart plate 1 is convenient to move, the bottom of the support column 2 is provided with a cavity, a screw rod 5 is rotatably connected with the cavity and is used for driving a slide block 10 to move, a first gear 6 is fixedly sleeved on the screw rod 5, a second gear 7 which is meshed with the first gear 6 is arranged in the cavity and is used for driving the first gear 6 to rotate, the second gear 7 is rotatably connected with, is used for driving the rotating rod 8 to rotate;

one side that sweep 1 was kept away from to support column 2 is equipped with the spout, the one end of screw rod 5 runs through the interior top of cavity and extends to the spout, slider 10 has been cup jointed to the one end screw thread that screw rod 5 is located the spout, be used for supporting handle 11, slider 10 keeps away from screw rod 5's one end fixedly connected with handle 11, conveniently promote sweep 1, sweep 1 is close to support column 2's one end fixedly connected with fixture block 12, it is equipped with kelly 13 to slide on fixture block 12 to insert, be used for braking, the top fixedly connected with of kelly 13 is pedal 14, the cover is equipped with spring 15 on the kelly 13, play certain elastic support to kelly 13, spring 15's both ends respectively with pedal 14 and fixture block 12 fixed connection.

In this embodiment, the cover is equipped with torque spring in pivot 3, torque spring's both ends respectively with support column 2 and 1 fixed connection of sweep, play certain torsion to support column 2 and support, the one end screw of knob 9 is inserted and is equipped with locking screw 16, convenient fixed knob 9, it is equipped with a plurality of locking grooves that correspond with locking screw 16 to surround on the outer wall of sweep 1, the fixed cover in bottom of kelly 13 has connect cutting ferrule 17, prevent that kelly 13 from droing, the fixed slipmat that has cup jointed in top of pedal 14, strengthen pedal 14's frictional force, the fixed rubber sleeve that has cup jointed on handle 11, conveniently grip handle 11.

In this embodiment, when the support column 2 needs to be folded, turn turnbuckle 18 earlier, with support column 2 income sweep 1 in, then turn knob 9 drives bull stick 8 and rotates, drive screw rod 5 through the meshing effect between first gear 6 and the second gear 7 and rotate, thereby drive handle 11 and remove, adjust the position of handle 11, bar 12 and pedal 14's setting simultaneously, can the person of facilitating the use brake the shallow through pedal 14's mode, torsion spring can play certain torsion to support column 2 simultaneously and support, spring 15 can play certain elastic support to bar 13, locking screw 16 can carry out effectual fixed to knob 9.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. Handcart is folded to four-wheel includes sweep (1) and support column (2), its characterized in that: the top of support column (2) and sweep (1) one end is rotated through pivot (3) and is connected, support column (2) passes through turn buckle (18) with the inner wall of sweep (1) and is connected, the both ends of turn buckle (18) are rotated with sweep (1) and support column (2) respectively and are connected, the bottom of sweep (1) is rotated and is connected with four wheels (4) that are the rectangle and distribute, the bottom of support column (2) is equipped with the cavity, the cavity internal rotation is connected with screw rod (5), the fixed cover has been cup jointed first gear (6) on screw rod (5), be equipped with in the cavity with first gear (6) engaged with second gear (7), the inner wall of second gear (7) and cavity passes through bull stick (8) and rotates the connection, the one end of bull stick (8) runs through the inner wall and the fixedly connected with knob (9) of cavity, one side of keeping away from sweep (1) in support column (2) is equipped with the spout, the one end of screw rod (5) runs through the interior top of cavity and to the spout interior extension, slider (10) have been cup jointed to the one end screw thread that screw rod (5) are located the spout, the one end fixedly connected with handle (11) of screw rod (5) are kept away from in slider (10), sweep (1) is close to one end fixedly connected with fixture block (12) of support column (2), slide on fixture block (12) and insert and be equipped with kelly (13), the top fixedly connected with pedal (14) of kelly (13), the cover is equipped with spring (15) on kelly (13), the both ends of spring (15) respectively with pedal (14) and fixture block (12) fixed connection.

2. A four-wheeled folding cart according to claim 1, wherein: the rotating shaft (3) is sleeved with a torsion spring, and two ends of the torsion spring are fixedly connected with the supporting column (2) and the sweeping board (1) respectively.

3. A four-wheeled folding cart according to claim 1, wherein: and a locking screw (16) is inserted into one end of the knob (9) through threads, and a plurality of locking grooves corresponding to the locking screws (16) are formed in the outer wall of the vehicle plate (1) in an encircling manner.

4. A four-wheeled folding cart according to claim 1, wherein: the bottom of the clamping rod (13) is fixedly sleeved with a clamping sleeve (17).

5. A four-wheeled folding cart according to claim 1, wherein: the top of the pedal (14) is fixedly sleeved with an anti-skid pad.

6. A four-wheeled folding cart according to claim 1, wherein: the handle (11) is fixedly sleeved with a rubber sleeve.

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