WO2017160002A1

WO2017160002A1 - Carrier capable of air-pumping

Info

Publication number: WO2017160002A1
Application number: PCT/KR2017/001845
Authority: WO
Inventors: 심도형
Original assignee: 심도형
Priority date: 2016-03-18
Filing date: 2017-02-20
Publication date: 2017-09-21
Also published as: KR20170108568A

Abstract

The present invention relates to a carrier, and disclosed is a carrier comprising a cart which: has a pump structure applied to a hand-held part, thereby enabling air compression; and enables the convenient adjustment of the height of a handle. The present invention comprises: a frame which has wheels rotatably provided thereto; a hand-held part which comprises a cylinder mounted on the frame, and a handle part having a handle which is mounted on the cylinder so as to be capable of undergoing reciprocation, and is held in the hand of a user, wherein outside air entering through a suction flow channel is compressed in the cylinder by means of the handle part and discharged through a discharge flow channel; and an opening/closing valve which is provided to the discharge flow channel so as to open/close the discharge flow channel, and thus after deciding on the drawn-out height of the handle, the opening/closing valve is closed, thereby enabling the height of the handle to be fixed.

Description

Air Pumpable Carrier

The present invention relates to a carrier capable of air pumping, which is normally used as a cart, a pump capable of supplying compressed air to the inside of a tube or travel bag is used as a handle, and the cart can adjust the height of the handle to various lengths. It relates to a carrier comprising a.

A commonly used cart is used for the purpose of conveniently carrying an object, a frame having a handle formed on one side, wheels rotatably mounted on both sides of the lower end of the frame, and a load formed to load an object on the frame. It can be carried by carrying a large amount of load in a loading part.

When using a cart or luggage mounted on such a cart, it is difficult to adjust the height of the handle, and in the case of a commonly used carrier, the height can be adjusted step by step only at the height where the latch is formed.

In addition, when traveling in a cart with tubes or life jackets in a bag, when traveling for water play, a separate air injector is carried to arrive at the destination, take out the tube or life jacket, and inject air into the water tube. There is discomfort to be done.

[Preceding technical literature]

(Patent Document 1) Republic of Korea Registered Utility Model Room No. 0115527 (bucket equipped with a cart)

An object of the present invention devised in view of the above point is to provide a carrier including a cart that is easy to adjust the height of the handle.

Still another object of the present invention is to provide a carrier including a pump-integrated cart that is easy to inject air into a tubular suitcase and that is capable of injecting air without preparing a separate air pump.

Still another object of the present invention is to provide a carrier including a multi-purpose cart that can be used by connecting a suitcase or a tube for swimming.

Carrier for achieving the object of the present invention as described above is provided with a frame rotatably mounted, a cylinder mounted to the frame, and the handle is mounted to the cylinder reciprocatingly and the user grips by hand A handle portion including a handle portion, wherein external air introduced through the suction passage is compressed in the cylinder by the handle portion and discharged into the discharge passage; And a second opening / closing valve mounted to the discharge passage to open and close the discharge passage, and closing the second opening / closing valve to fix the height of the handle after determining the height at which the handle is drawn out.

In addition, the first opening and closing valve may further include a first opening / closing valve mounted to the suction channel so as to fix the height of the handle after determining the height at which the handle is drawn out.

As described above, the cart according to the present invention is capable of temporarily fixing the height of the handle in a manner of controlling the internal air flow of the handle part constituting the pump, thereby increasing convenience of use. That is, the opening and closing valves for blocking the flow of air is installed in the suction flow path and the discharge flow path to adjust the height of the handle to various lengths has the effect of increasing the convenience of use.

In addition, the handle portion is made of a pump, it is possible to inject air into the tube or bag without preparing a separate pump has the effect of increasing the ease of use.

In addition, the cart according to the present invention can be used as a travel bag in the usual case by installing a tubular travel bag, can be stored in the inside, when the water can be injected into the air can be used as a tube to increase the convenience of use There is.

1 is a side view showing a carrier equipped with a suitcase in a cart which is a first preferred embodiment of the present invention;

FIG. 2 is a front view showing the carrier shown in FIG. 1;

3 is a cross-sectional view showing an open / close valve;

4 is a cross-sectional view showing a state in which the shut-off valve is closed;

5 is a cross-sectional view of the suitcase shown in FIG. 1;

6 is a sectional view showing another embodiment of the suitcase;

7 is a cross-sectional view showing a handle portion of a cart which is a second preferred embodiment of the present invention;

8 is a state diagram showing an operating state of the on-off valve shown in FIG.

9 is a cross-sectional view showing a handle portion of a cart as a third preferred embodiment of the present invention;

10 is a state diagram showing a suction state of the handle portion shown in FIG.

11 is a state diagram showing a fixed state of the handle portion shown in FIG.

12 is a cross-sectional view showing a handle portion of a cart as a fourth preferred embodiment of the present invention;

13 is a state diagram showing a suction state of the handle portion shown in FIG.

14 is a state diagram showing a fixed state of the handle portion shown in FIG.

Hereinafter, with reference to the accompanying drawings, a cart which is a preferred embodiment of the present invention will be described in detail.

Herein, 1) shapes, sizes, ratios, angles, numbers, and the like shown in the accompanying drawings may be changed to be rough. 2) Since the drawings are shown with the eyes of the observer, the direction or position for describing the drawings may be variously changed according to the positions of the observers. 3) The same reference numerals may be used for the same parts even if the reference numbers are different. 4) When 'includes, has, is made', etc., other parts may be added unless 'only' is used. 5) When described in the singular, the plural can also be interpreted. 6) Even if the shape, size comparison, positional relationship, etc. are not described as 'weak, substantial', etc., they are interpreted to include a normal error range. 7) Although terms such as 'after, before, and after, and then,' are used, they are not used to limit the temporal position. 8) Terms such as 'first', 'second', and 'third' are merely used selectively, interchangeably or repeatedly for convenience of division and are not to be interpreted in a limiting sense. 9) When the positional relationship of two parts is described as: on, on, on, under, beside, on the side, etc., one or more other parts between the two parts, unless "baro" is used. This may be located. 10) When parts are electrically connected by 'or', they are interpreted to include not only parts but also combinations, but only when parts are electrically connected by 'or'.

1 is a side view showing a carrier equipped with a suitcase in a cart according to a first preferred embodiment of the present invention, FIG. 2 is a front view showing the carrier shown in FIG. 1, and FIG. 4 is a cross-sectional view illustrating a closed state of the on / off valve, FIG. 5 is a cross-sectional view of the suitcase shown in FIG. 1, and FIG. 6 is a cross-sectional view of a suitcase, which is another embodiment.

As shown in FIGS. 1 to 5, a carrier including a tubular suitcase mounted on a cart, which is a preferred embodiment of the present invention, may be detachably attached to a cart 40 and a cart 40 provided with a handle formed in a pump shape. It is composed of a bag portion 50 is mounted and the air is injected therein.

As shown in FIG. 2, the cart 40 has a frame 41 having a rectangular frame shape so as to support one surface of the bag part 50, and an axis rotatably mounted at a lower end of the frame 41. Wheel 43 installed at both ends of the 42, the base 44 hinged to the lower end of the frame 41 and forming a rectangular frame shape supporting the bottom surface of the bag 50, and the frame 41 It consists of a handle part installed in the). The wheel 43 is detachably mounted to the shaft 42. The fixed shaft 45 is installed in the middle of the frame 41.

The handle part 110 according to the first preferred embodiment of the present invention is installed in the frame 41 and the cylinder 115 is provided with an inner space constituting a compression space, and the reciprocally installed inside the cylinder 115 It consists of a handle part.

The handle portion is provided with a piston 113 reciprocally mounted in the cylinder 115 in a longitudinal direction, a piston rod 112 connected to the piston 113, and a handle 111 provided at the end of the piston rod 112. And a first opening / closing valve 120 installed at the handle 111.

One side of the cylinder 115 is fixed to the fixed shaft 45 and the other side is fixed to the upper end of the frame 41. One end of the cylinder 115 is provided with a nozzle 116 for discharging the compressed air only outward. The second opening / closing valve 130 is installed inside the nozzle 116 to control the flow of air. The user may operate the second opening / closing valve 130 installed in the nozzle 116 to open or close the nozzle 116. In addition, the second check valve 133 may be additionally installed at the nozzle 116 so that the compressed air therein is discharged and the outside air may not be introduced into the cylinder 115.

The piston 113 reciprocates along the inner space of the cylinder 115 and compresses air. The piston rod 112 is connected to the piston 113, and the flow path 112a, which is started from the piston 113 and communicates with the internal space of the cylinder 115, extends to the handle 111 along the center of the piston rod 112. Is extended. The first check valve 125 is installed at one end of the flow path 112a. The first check valve 125 controls the outside air to be introduced into the cylinder 115 through the flow path 112a and not moved in the opposite direction.

The handle 111 is equipped with a first opening and closing valve 120 for opening and closing the flow path 112a. The first opening / closing valve 120 is mounted to the handle 111 so as to be movable, and opens and closes the shaft 122 for opening and closing the flow path 112a, and is installed at the end of the opening and closing shaft 122, and one side is exposed to the outside. The pressing part 121 and the elastic member 123 which elastically supports the pressing part 121 are comprised.

The opening and closing shaft 122 has a shaft shape having an outer diameter larger than the inner diameter of the passage 112a, and the opening and closing hole 124 temporarily communicating with the passage 112a penetrates through an intermediate portion of the opening and closing shaft 122. As shown in FIG. 3, when the opening and closing shaft 122 is drawn in, the opening and closing hole 124 communicates with the flow path 112a, and as shown in FIG. 4, when the opening and closing shaft 123 is drawn out of the opening and closing hole 124. As the position moves, the flow path 112a is closed.

The pressing part 121 is exposed to the outside of the surface facing the surface connected to the opening and closing shaft 122. One side of the pressing unit 121 is formed with a locking step (121a) for preventing the separation of the pressing unit 121. The handle 111 is provided with a seating groove in which the first opening / closing valve 120 is installed, and the latching jaw 121a maintains a state that extends over the inlet side of the seating groove to prevent the first opening / closing valve 120 from being detached. . The pressing unit 121 has been described as an example of the structure mounted on the rear of the handle 111, the position of the pressing unit 121 can be installed in various directions, such as the top, bottom, front.

The elastic member 123 is installed to surround the opening and closing shaft 122, one side is in contact with the bottom surface of the seating groove formed in the handle 111, the other side is in contact with the pressing portion 121. The elastic member 123 presses the pressing portion 121 in the outward direction to maintain the protruding state. In order to open the flow path 112a, the pressing part 121 needs to be pushed in by hand. When the pressing unit 121 is introduced, the opening and closing shaft 122 is moved to communicate with the flow path 112a and the opening and closing hole 124.

When the user grasps the handle 111 by hand and presses the pressing part 121 to open the flow path 112a and lowers the handle 111 as illustrated in FIG. 3, the piston 113 is operated to operate the cylinder 115. Compress the air inside. At this time, the first check valve 125 is operated to block backflow of the compressed air in the cylinder 115 through the flow path 112a, and the compressed air is a nozzle 116 in which the second opening / closing valve 130 is installed. Is discharged to outside.

Next, when the handle 111 is raised, the first check valve 125 opens and external air is introduced into the cylinder 115 through the flow path 112a.

The handle 110 is operated by raising and lowering the handle 111, and the air compressed by the handle 110 is discharged through the nozzle 116.

It is also possible to adjust the height of the handle 111. When the pressure of the pressing portion 121 is removed while the handle 111 is positioned at a desired height, the flow passage 112a is closed while the pressing portion 121 is drawn out. In addition, when the second opening / closing valve 130 installed in the nozzle 116 is closed, the inside of the cylinder 115 is blocked, and thus the position of the piston 113 is fixed.

The second opening / closing valve 130 installed in the nozzle 116 may apply the structure of the second opening / closing valves 230, 330, and 430 of the second to fourth embodiments to be described later. That is, the second opening / closing valve 130 is installed at the nozzle 116 on one side of the lower end of the cylinder 115, and the fixing part provided with the first through hole 132a constituting the discharge passage as shown in FIG. 132 and a rotating part 131 rotatably mounted on the upper surface of the fixing part 132. It is preferable that the fixing part 132 and the rotating part 131 have a circular dial shape. The rotating part 131 is formed with a second through hole 131a which is temporarily communicated with the first through hole 132a while being rotated. The second check valve 133 is mounted on the inner side of the fixing part 132. The second check valve 133 allows the internal air to be drawn out of the cylinder through the first through hole 132a and the second through hole 231a, and the air outside the cylinder to the first through hole 232a. The incoming through the second through hole 231a is blocked.

When the position of the piston 113 is fixed by air pressure, the height of the handle 111 also remains fixed. In addition, the height of the handle 111 may be readjusted by operating the first opening / closing valve 120 in that state.

Bag portion 50 is composed of a case 51 detachably mounted to the cart 40, and the opening and closing portion 53 for opening and closing the inner space of the case 51.

Case 51 is a shoulder strap 56 is mounted on one side to be detachable to the cart 40. The shoulder strap 56 is adjustable in length, and the case 51 is fixed to the frame 41 when the shoulder strap 56 is wound around the upper end of the frame 41 and the fixed shaft 45. In order to fix the case 51 to the frame 41, a structure other than the shoulder strap 56 is also applicable. For example, buttons, Velcro tapes, male and female couplers, and the like are also applicable.

The case 51 is preferably formed in a hexahedron shape, but may be formed in various shapes such as a cylindrical shape and a tetrahedron in addition to the hexahedron. In addition, the case 51 may be configured in a character shape having a predetermined internal space. Case 51 may have a variety of appearances, such as children's favorite Disney characters, cartoon characters, dinosaurs, robots.

The case 51 is formed with an injection hole 54 connected to the nozzle 116 of the handle 110. The nozzle 116 is used to be fixed to the injection hole 54. The inlet 54 delivers compressed air to the inner space of the case 51. The injection port 54 is equipped with a third check valve 55. Compressed air injected into the inner space of the case 51 through the inlet 54 is prevented from backflow by the third check valve 55. The opening and closing part 53 is installed at the inlet side of the case 51 having one side opened to open and close the inner space of the case 51.

The inner surface of the case 51 is connected to the third check valve 55 is provided with a basket 52 for receiving compressed air. The basket 52 is installed on the inner surface of the case 51 to accommodate pencils or other small objects, and is provided with an air bag 52a communicating with the third check valve 55 therein. Some of the compressed air injected through the inlet 54 is branched and injected into the air bag 52a. The basket 52 is provided with an air stopper to discharge the air injected into the air bag 52a to the outside.

The compressed air injected through the inlet 54 is filled in the air bag 52a and the internal space 51a via the third check valve 55. At this time, the opening and closing part 53 maintains the closed state.

When the opening and closing part 53 is opened in this state, the air filled in the internal space 51a can be discharged to the outside. When the object is filled in the internal space 51a, when the opening and closing part 53 is closed and compressed air is injected, the case 51 swells and returns to a circular state. The opening and closing part 53 applies a zipper bag structure. In addition to the zipper bag structure, it is possible to apply various kinds of opening and closing means for blocking the inner space (51a) to a closed space. In the present invention, the zipper structure and the zipper bag structure may be dually applied to increase the sealing degree.

Similarly, the tubular suitcase mounted on the cart, which is another embodiment of the present invention, is provided with an air bag 51b connected to the third check valve 55 inside the case 51 as shown in FIG. 6. The case 51 is formed with an air stopper 57 in communication with the air bag 51b.

As shown in FIG. 6, the air pockets 51b of the case 51 preferably form a plurality of air flow paths communicating with each other. It is preferable to form a plurality of connected air flow paths in the air bag 51b of the case 51 through fusion.

A part of the compressed air supplied through the third check valve 55 may be formed to be supplied to the internal space 51a of the case 51.

As described above, the tubular travel bag portion, which is a preferred embodiment of the present invention, is usually used as a carrier having a form in which the bag portion 50 is mounted on the cart 40, and in the case of a water play, the bag portion (from the cart 40) 50) by operating the handle portion 110 in the state of separation to inject air into the bag portion 50 is used as a tube for swimming.

When the compressed air is filled into the bag part 50 and used as a tube for swimming, the handle part is removed from the cart 40 as described above, and the nozzle 116 is connected to the inlet 54. Compressed air is injected into the bag part 50 by operating the part 11. When the air injection is complete, the bag 50 is separated and used as a tube for swimming. If desired by the user, a separate air injection pump or a bicycle pump may be used to inject compressed air. At this time, the injection port 54 is made of a shape suitable for the pump or bicycle pump used.

In addition, by adjusting the shoulder strap 56 in the state of injecting compressed air into the bag portion 50, the bag portion 50 is attached to the back, or can be used as a life jacket instead of hanging on the stomach.

In the case where the bag portion 50 is fixed to the cart 40 and used as a carrier, the opening and closing portion 53 of the bag portion 50 is opened to store an object therein, and then the nozzle 116 is placed in the inlet 54. Connect. When the handle 111 of the handle 110 is reciprocated in the longitudinal direction, the piston 113 moves along the inside of the cylinder 115 to compress air. The compressed air is filled in the internal space 51a of the case 51 or the air bag 52a through the nozzle 116. When the compressed air is filled into the bag part 50, the bag part 50 swells with the object filled therein and returns to its original shape. In addition, when the case 51 is configured in the shape of a character, children can carry the cart part 40 like a doll and use it as a substitute for play.

After the use of the bag unit 50 is completed, the opening and closing unit 53 is opened and the air stopper 57 is opened to discharge the air filled in the bag unit 50 and can be stored in a reduced state.

In addition, when using the cart 40, the height of the handle 111 can be adjusted by operating the first opening and closing valve 120 installed on the handle 111.

When the pressurizing part 121 of the first opening / closing valve 120 is pressed to communicate the flow path 112a with the opening / closing hole 124, the flow path 112a is opened and the handle 111 can be moved.

When removing the force applied to the pressing unit 121 in a state where the handle 111 is located at a desired height, the passage 112a is closed while the pressing unit 121 is drawn out. When the second opening / closing valve 130 installed in the nozzle 116 is closed, the inside of the cylinder 115 is blocked, so the position of the piston 113 is fixed. Therefore, the handle 111 can be fixed at a desired height.

Likewise, the handle portion 210 mounted on the cart according to the second preferred embodiment of the present invention includes a cylinder 215 having an inner space formed in the frame 41 and forming a compression space as shown in FIGS. 7 to 8. It is composed of a handle portion that is installed reciprocally inside the cylinder 215.

The handle part includes a piston 213 reciprocally mounted in the cylinder 215 in a longitudinal direction, a piston rod 212 connected to the piston 213, and a handle 211 provided at the end of the piston rod 212. And a first opening / closing valve 220 and a second opening / closing valve 230 mounted on the lower end side of the piston 213 so as to contact a compressed space in which air is compressed by the piston 213, and the first opening / closing valve 220. The first check valve 223 is attached to the (), and the second check valve 233 is mounted to the second opening and closing valve 230.

One side of the cylinder 215 is fixed to the fixed shaft 45 and the other side is fixed to the upper end of the frame 41. The second opening / closing valve 230 installed at one end of the cylinder 215 is provided with a nozzle 216 for discharging the compressed air.

The first opening / closing valve 220 is mounted on the other end of the lower end of the cylinder 215 and is rotatable with the fixing part 222 provided with the first through hole 222a constituting the suction flow path and the upper surface of the fixing part 222. It consists of a rotating portion 221 is mounted. It is preferable that the fixed part 222 and the rotating part 221 have a circular dial shape. The rotating part 221 is formed with a second through hole 221a which is temporarily communicated with the first through hole 222a while being rotated. The first check valve 223 is mounted on the inner side of the fixing part 222. The first check valve 223 allows the outside air of the cylinder to be introduced into the interior through the first through hole 222a and the second through hole 221a, and the internal air is introduced into the first through hole 222a and the second through hole 222a. Withdrawal to the outside through the through hole 221a is blocked.

The second opening / closing valve 230 is mounted on one side of the lower end of the cylinder 215 and is rotatable with a fixed part 232 provided with a first through hole 232a constituting a discharge flow path, and an upper surface of the fixed part 232. It consists of a rotating part 231 to be mounted. It is preferable that the fixing part 232 and the rotating part 231 have a circular dial shape. The rotating part 231 is formed with a second through hole 231a which is temporarily connected to the first through hole 232a while being rotated. The second check valve 233 is mounted on the inner side of the fixing part 232. The second check valve 233 allows the internal air to be drawn out of the cylinder through the first through hole 232a and the second through hole 231a, and the air outside the cylinder to the first through hole 232a. The incoming through the second through hole 231a is blocked.

If you want to operate the handle portion 210 of the cart of the second preferred embodiment of the present invention configured as described above, the first opening and closing valve 220 and the second opening and closing valve 230 in the open state, the handle ( When the lower portion 211 is lowered, the first check valve 223 is closed and the second check valve 233 is opened while the air in the cylinder 215 is compressed. The compressed air is discharged through the first through hole 232a and the second through hole 231a. When the discharge of the compressed air is completed and the handle 211 is raised again, the first check valve 223 is opened and the second check valve 233 is closed while the external air is first and second through holes 222a and 2nd through holes. Inhaled through 221a.

In addition, in order to fix the drawn height of the handle 211, the rotating part 231 of the second opening / closing valve 230 is rotated as shown in FIG. As the rotating unit 231 rotates, the position of the second through hole 231a is moved, and the first through hole 232a is switched to a blocked state. Then, the rotating part 221 of the first opening / closing valve 220 is rotated. As the rotating unit 221 rotates, the position of the second through hole 221a is moved, and the first through hole 222a is switched to a blocked state.

As described above, when the first inlet and outlet valve 220 is closed and the air inlet through the inlet flow path is blocked, and the second inlet and outlet valve 230 is closed, the air discharge through the outlet flow path is blocked. The space is in a sealed state, and the piston 213 cannot be moved. When the position of the piston 213 is fixed, the handle 211 connected to the piston 213 maintains a protruding state.

In order to readjust the height of the handle 211 or to operate the pump, the first opening / closing valve 220 and the second opening / closing valve 230 are opened so that the inflow of the outside air and the outflow of the compressed air are possible.

That is, the rotating part 231 of the second opening / closing valve 230 is rotated. While the rotating unit 231 rotates, the position of the second through hole 231a is moved, and the state is communicated with the first through hole 232a. Then, the rotating part 221 of the first opening / closing valve 220 is rotated. While the rotating unit 221 rotates, the position of the second through hole 221a is moved, and the state is communicated with the first through hole 222a.

Similarly, the handle 310 mounted on the cart, which is a third preferred embodiment of the present invention, is installed in the frame 41 and has a cylinder 315 provided with an inner space that forms a compression space as shown in FIGS. 9 to 11. It is composed of a handle portion that is installed reciprocally inside the cylinder 315.

The handle part may be reciprocally installed in the inner space of the cylinder 315 and may have a first piston 313 having a cross section extending to form a gap 313a with an inner surface of the cylinder 315, and one side of the first piston 313. Piston rod 312 connected to the outside of the cylinder 315 extending through the center, the handle 311 connected to the other side of the piston rod 312, the first piston 313 and the cylinder The interior of the cylinder 315 is spaced apart from the first piston 313 so as to secure a moving section of the sealing ring 316 mounted to selectively contact the gap 313a of the inner surface. A second piston 314 which is reciprocally installed in the space, has a cross section extended to closely contact the inner surface of the cylinder 315, and has a through hole 314a at a position not in contact with the sealing ring 316, and one side Is an opening and closing shaft 311b connected to the second piston 314 and extending along the passage of the piston rod 312, and the opening and closing shaft. It is installed at the end of the (311b), one side of the pressing portion 311a protruding out of the handle 311, one side is in contact with the pressing portion 311a and the other side is supported by the handle 311, the pressing portion ( It consists of an elastic member 311c which elastically supports 311a).

When the handle 310 of the cart, which is the third preferred embodiment of the present invention configured as described above, is operated, the same structure as the first open / close valve 220 and the second open / close valve 230 described in the second embodiment In a state in which both the first open / close valve 320 and the second open / close valve 330 are opened, the handle 311 is lowered in a state in which the pressurization part 311a is pressed, as shown in FIG. 9. By the sealing ring 316 is raised to prevent the gap (313a) formed along the circumference of the first piston (313). When the lowering of the handle 311 continues while the air gap is blocked by the sealing ring 316, the gap 313a between the first piston 313 and the inner surface of the cylinder 315 is blocked. The air in the space is compressed and discharged through the first through hole 332a and the second through hole 331a. At this time, both the first check valve 323 and the second check valve 333 maintain an open state.

At the same time as the compressed air is discharged, the external air is introduced into the suction space provided on the upper end of the cylinder 315 based on the piston through the suction passage. When the discharge of the compressed air is completed and the handle 311 is raised again, as shown in FIG. 10, as the sealing ring 316 is lowered by friction, a gap 313a formed along the circumference of the first piston 313 is formed. Open. In addition, while the first check valve 323 and the second check valve 333 are all closed, the air in the suction space is moved to the compressed space through the gap 313a and the through hole 314a of the first piston 313. .

When the movement of the internal air from the suction space to the compression space is completed, the handle 311 is lowered again to perform air compression again.

In addition, in order to fix the drawn height of the handle 311, the first opening / closing valve 320 and the second opening / closing valve 330 are closed while the handle 311 is drawn out to an appropriate length.

When the first inlet and outlet valve 320 is closed and the air inlet through the inlet flow path is blocked, and the second inlet and outlet valve 330 is closed, the air is discharged through the outlet passage, the internal compression space of the cylinder 315 is sealed. It becomes a state. When the force that pressurizes the pressing portion 311a in this state is removed, the second piston 314 is raised while the pressing portion 311a protrudes as shown in FIG. 11. The raised second piston 314 pressurizes the sealing ring 316, and the pressurized sealing ring 316 closes the gap between the first piston 313 and the cylinder 315. That is, when the second piston 314 is raised while the pressing unit 311a protrudes, the gap between the first piston 313 and the second piston 314 becomes narrow and the sealing ring 316 is formed in the first piston 313. And a state in close contact with the gap between the cylinder 315 and the inner wall.

When the sealing ring 316 blocks the circumferential gap 313a of the first piston 313, air movement between the suction space and the compression space is blocked, so that the handle 311 maintains the protruding height.

In order to readjust the height of the handle 311 or to operate the pump, the first opening / closing valve 320 and the second opening / closing valve 330 are opened to switch to an inflow of external air and an outflow of compressed air. And the raising and lowering of the handle 311 is repeatedly performed in the state which pressed the press part 311a by hand.

Similarly, the handle portion 410 mounted to the cart according to the fourth preferred embodiment of the present invention includes a cylinder 418 having an inner space formed in the frame 41 and forming a compression space as shown in FIGS. 12 to 14. It is composed of a handle portion that is installed reciprocally inside the cylinder 418.

The handle portion may be reciprocally installed in the inner space of the cylinder 418 and may have a first piston 413 and a first piston having an asymmetrically extended cross section so that one side may form a gap 413a with an inner surface of the cylinder 418. 413 and the first sealing ring 416 mounted to the lower end of the first piston 413 and the moving section of the first sealing ring 416 so as to selectively contact the one side gap 413a of the inner surface of the cylinder 418 The through hole 414a is installed in the inner space of the cylinder 418 so as to be secured, has a cross section extended to closely contact the inner surface of the cylinder 418, and is not in contact with the first sealing ring 416. It is mounted on the upper end of the first piston 413 to selectively contact the gap between the second piston 414 and the inner surface of the first piston 413 and the cylinder 418, and communicates with the gap 413a at one side. The second sealing ring 417 is provided with a communication hole (417a) and the inner space of the cylinder 418 to secure the moving section of the second sealing ring 417 A third piston 415 installed reciprocally, having a cross section extended to closely contact the inner surface of the cylinder 418, and having a through hole 415a at a position not in contact with the second sealing ring 417; One side is a piston rod 412 rotated about a central axis connected to a third piston 415, a first piston 413, and the second piston 414, and a handle 411 connected to the other side of the piston rod 412. It consists of.

The first piston 413 has an asymmetrical circumferential surface such that a gap 413a is provided at the left side shown in FIG. 12. That is, the first piston 413 has a groove in the region less than half of the circumferential surface with respect to the center so that the gap 413a is provided.

In addition, the second sealing ring 417 may be formed in an O-ring shape, and a communication hole 417a may be formed in a region less than half of the bottom surface. The second sealing ring 417 is mounted so as not to rotate. That is, even if the surrounding pistons rotate, the second sealing ring 417 is mounted not to rotate. Various methods may be applied to prevent the second sealing ring 417 from being rotated. For example, in the present invention, a guide groove extending in the longitudinal direction along the inner surface of the cylinder 418 may be formed and inserted into the guide groove. By forming the protrusions on the second sealing ring 417, a structure in which the rotation of the second sealing ring 417 is prevented is applied.

When the handle portion 410 of the cart, which is the fourth preferred embodiment of the present invention configured as described above, is operated, the same structure as the first open / close valve 220 and the second open / close valve 230 described in the second embodiment When the first opening / closing valve 420 and the second opening / closing valve 430 are both opened and the handle 411 is lowered, as shown in FIG. 12, the first sealing ring 416 may be damaged by friction. As the second sealing ring 417 is raised, one side gap 413a formed along the circumference of the first piston 413 is blocked. If the gap 413a between the first piston 413 and the inner surface of the cylinder 418 is blocked by the first sealing ring 416, and the downward movement of the handle 411 continues while the air is blocked, the cylinder 418 The air in the internal compression space is compressed and discharged through the first through hole 432a and the second through hole 431a. At this time, both the first check valve 423 and the second check valve 433 maintain an open state.

At the same time as the compressed air is discharged, the external air flows into the suction space provided at the upper end of the cylinder 418 based on the piston through the suction passage of the first opening / closing valve 420. When discharge of the compressed air is completed and the handle 411 is raised again, the first piston 413 and the first sealing ring 417 and the second sealing ring 417 are lowered by friction as shown in FIG. 13. A gap 413a formed along the circumference thereof is opened. That is, in the state in which the communication hole 417a of the second sealing ring 417 communicates with the gap 413a of the first piston 413, the air can move through the communication hole 417a and the gap 413a. . In addition, the first check valve 423 and the second check valve 433 are all closed, and the air in the suction space passes through the gap 413a between the through hole 415a, the communication hole 417a, and the first piston 413. It is moved to the compression space through the through hole 414a.

When the movement of the internal air from the suction space to the compression space is completed, the handle 411 is lowered again to perform air compression again.

In addition, in order to fix the drawn height of the handle 411, the first opening and closing valve 420 and the second opening and closing valve 430 by rotating the rotating parts (421, 431) in a state in which the handle 411 is drawn out to an appropriate length. Close it. When the air inlet through the inlet flow path is blocked while the first open / close valve 420 is closed, and the air discharge through the discharge flow path is blocked while the second open / close valve 430 is closed, the internal compression space of the cylinder 418 is sealed. It becomes a state.

When the knob 411 is rotated 180 degrees in this state, as shown in FIG. 14, the gap 413a is moved from the left side to the right side while the first piston 413 rotates. At this time, the second sealing ring 417 does not rotate.

In this state, when the handle 411 tries to move in the rising direction, the second sealing ring 417 blocks the gap 413a to block the movement of air, and when the handle 411 tries to move in the downward direction, the second sealing ring 417 1 sealing ring 416 blocks the gap 413a to block the movement of air.

When the gap 413a of the first piston 413 is blocked by the first sealing ring 416 or the second sealing ring 417, air movement between the suction space and the compression space is blocked, so that the handle 411 protrudes. Keep it.

In order to readjust the height of the handle 411 or to operate the pump, the first opening / closing valve 420 and the second opening / closing valve 430 are opened to switch to an inflow of external air and an outflow of compressed air. Then, the handle 411 is raised and lowered while the handle 411 is returned to its original direction.

In addition, the handle portion according to the present invention can be used as a generator by converting the kinetic energy generated during the air injection into electrical energy. Since the handle portion according to the present invention is repeatedly made to raise or lower the handle to inject air, it is possible to produce electrical energy by converting the linear reciprocating motion by the piston into a rotary motion to drive the generator.

For example, by using a rack and pinion gear, the linear reciprocating energy of the piston transmitted through the rack through the pinion gear that engages the rack. Electric energy can be produced by converting into kinetic energy to drive a generator.

In another example, a linear reciprocating energy of a piston transmitted through a motivator is converted to rotational kinetic energy through a cylindrical cam grooved on a surface by using a motivator and a cam. Electric power can be produced by driving a generator.

The electrical energy produced can be stored in a capacitor and then used to power the application through a power connector. As an application, it can be used, for example, to charge a secondary battery or to flash an indicator.

As described above, the cart according to the present invention applies a pump structure to the handle part so that the compressed air can be easily injected into the tube or the airbag. In addition, when used as a travel carrier or baggage transport, it is possible to adjust the height of the handle pulled out by using a method of controlling the air flow inside the pump to increase the ease of use.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

[부호의 설명][Description of the code]

110: handle portion

111: Handle-First Opening Valve

112: piston rod

112a: Euro

113: piston

115: cylinder

116: Nozzle-Second Opening Valve

120: first opening and closing valve

121: pressurization

121a: jaw

122: opening and closing shaft

123: elastic member

124: opening and closing hole

125: first check valve

130: second opening and closing valve

131: rotating part

131a: second through hole

132: fixed part

132a: first through hole

133: second check valve

40: cart

41: frame

42: axis

43: wheels

44: pedestal

45: fixed shaft

50: bag part

51: case

51a: interior space

51b: airbag

52: basket

52a: air bag

53: opening and closing part

54: inlet

55: third check valve

56: shoulder strap

57: air stopper

210: handle portion

211: handle

212: piston rod

212a: Euro

213: piston

215: cylinder

216: nozzle

220: first opening and closing valve

221: rotating part

221a: second through hole

222: fixed part

222a: first through hole

223: first check valve

230: second opening and closing valve

231: rotating part

231a: second through hole

232: fixed part

232a: first through hole

233: second check valve

310: handle portion

311: handle

311a: pressurization

311b: opening and closing shaft

311c: elastic member

312: piston rod

312a: Euro

313: first piston

313a: gap

314: second piston

314a: through hole

315: cylinder

316: sealing ring

320: first opening and closing valve

321: rotating part

321a: second through hole

322: fixed part

322a: first through hole

323: first check valve

330: second on-off valve

331: rotating part

331a: second through hole

332: fixed part

332a: first through hole

333: second check valve

410: handle portion

411: handle

411a: pressing portion

411b: opening and closing shaft

411c: elastic member

412: piston rod

413: first piston

413a: niche

414: second piston

414a: through hole

415: third piston

415a: through hole

416: first sealing ring

417: second sealing ring

417a: communication hole

418: cylinder

420: first opening and closing valve

421: rotating part

421a: second through hole

422: fixed part

422a: first through hole

423: first check valve

430: second on-off valve

431: rotating part

431a: second through hole

432: fixed part

432a: first through hole

433: second check valve

Claims

A frame with rotatable wheels,

A cart including a pump-type handle mounted to the frame; And

A tubular case mounted detachably to the cart and having an inner space for receiving and expanding compressed air by the pump handle;

And a bag part installed at the tubular case to open and close an inner space and including an opening and closing part to seal the inner space.
A frame with rotatable wheels,

A cylinder mounted to the frame, and a handle portion provided with a handle reciprocally mounted to the cylinder and gripped by the user by hand, and external air introduced through the suction flow path in the cylinder by the handle portion. A handle portion compressed and discharged into the discharge passage; And

And a second opening / closing valve mounted to the discharge passage to open and close the discharge passage.

A carrier for fixing the height of the handle by closing the second opening / closing valve after determining the height at which the handle is drawn out.
3. The carrier of claim 2, further comprising a first opening / closing valve mounted to the suction channel to open and close the suction channel to fix the height of the handle after determining the height at which the handle is drawn out.
The method of claim 3, wherein the handle portion

A piston 113 reciprocally installed in the inner space of the cylinder 115;

One side is connected to the piston 113 and the piston rod 112 formed along the center of the suction flow path (112a) to communicate with the internal space of the piston 113;

The handle 111 is connected to the other side of the piston rod 112 and the suction passage 112a extends along a center thereof;

A first check valve 125 installed in the suction passage 112a of the piston rod 112; And

And a first opening / closing valve (120) installed at the handle (111) to open and close the suction flow path (112a) communicating with the outside.
The method of claim 4, wherein the first opening and closing valve 120

An opening / closing shaft (122) having an opening / closing hole (124) temporarily mounted in the handle (111) and temporarily communicating with the suction passage (112a) in an intermediate portion thereof;

A pressing part 121 installed at an end of the opening / closing shaft 122 and having one side protruding to the outside of the handle 111;

One side is in contact with the pressing portion 121 and the other side is supported by the handle 111, the elastic member (123) for supporting the pressing portion 121; carrier including a.
The method of claim 3, wherein the second opening and closing valve 230

A fixing part 232 mounted to the cylinder 215 and provided with a first through hole 232a constituting the discharge passage; And

And a rotating part (231) rotatably mounted to the fixing part (232) and having a second through hole (231a) selectively communicating with the first through hole (232a).
The method of claim 6, wherein the first opening and closing valve 220

A fixing part 222 mounted to the cylinder 215 and provided with a first through hole 222a constituting the suction flow path; And

And a rotating part (221) rotatably mounted to the fixing part (222) and having a second through hole (221a) selectively communicating with the first through hole (222a).
The method of claim 7, wherein the piston 213 is installed in the inner space of the cylinder 215 to reciprocate, the first opening and closing valve 220 and the second opening and closing valve 230 is the piston 213 It is installed so as to contact the compressed space is compressed by the air, the first check valve 220 is equipped with a first check valve 223, the second open and close valve 230, the second check valve 233 Carrier is mounted.
The method of claim 2, wherein the handle portion

A first piston 313 installed reciprocally in an inner space of the cylinder 315 and having a cross section extended to form a gap with an inner surface of the cylinder 315;

One side is connected to the first piston 313, the piston rod 312 formed along the center of the passage;

The handle 311 connected to the other side of the piston rod 312;

A sealing ring 316 mounted to selectively contact the gap 313a between the first piston 313 and the inner surface of the cylinder 315;

It is installed to reciprocate in the inner space of the cylinder 315 spaced apart from the first piston 313 so as to secure the moving section of the sealing ring 316, and is extended to closely contact the inner surface of the cylinder 315 A second piston 314 having a cross section and provided with a through hole 314 a in a position not in contact with the sealing ring 316;

One side is connected to the second piston 314 and the opening and closing shaft (311b) extending along the passage of the piston rod 312;

A pressing portion 311a installed at an end of the opening and closing shaft 311b and protruding to one side of the handle 311.

One side is in contact with the pressing portion (311a) and the other side is supported by the handle (311) carrier comprising an elastic member (311c) for elastically supporting the pressing portion (311a).
The method of claim 2, wherein the handle portion

A first piston 413 which is reciprocally installed in the inner space of the cylinder 418 and has one end portion asymmetrically extended so as to form a gap 413a with an inner surface of the cylinder 418;

A first sealing ring 416 mounted to a lower end of the first piston 413 so as to selectively contact the gap 413a between the first piston 413 and the inner surface of the cylinder 418;

It is installed to reciprocate in the inner space of the cylinder 418 so as to ensure a moving section of the first sealing ring 416, has an end surface extended to be in close contact with the inner surface of the cylinder 418, the first sealing ring A second piston 414 having a through hole 414a at a position not in contact with the 416;

A communication hole mounted on an upper end of the first piston 413 to selectively contact the gap 413a between the first piston 413 and the inner surface of the cylinder 418 and communicating with the gap 413a at one side thereof. A second sealing ring 417 having a 417a);

The second sealing ring 417 is installed to reciprocate in the inner space of the cylinder 418 so as to secure a moving section, and has an extended cross section to be in close contact with the inner surface of the cylinder 418, the second sealing ring A third piston 415 having a through hole 415a in a position not in contact with 417;

One side of the piston rod 412 is rotated with respect to the central axis connected to the third piston (415), the first piston (413), the second piston (414); And

And the handle (411) connected to the other side of the piston rod (412).
3. The tubular case 51 according to claim 2, wherein the tubular case 51 is detachably mounted to the cart 40 and has an inner space for expanding and receiving the compressed air by the handle portion.

Carrier further comprises a bag portion (50) which is installed in the tubular case (51) to open and close the inner space, the opening and closing portion (53) for sealing the inner space.
The method of claim 11, wherein the bag portion 50

An injection hole 54 formed at one side of the case 51 and temporarily connected to a nozzle in which the second opening / closing valve is installed;

A third check valve 55 formed at an end of the injection port 54 and supplying compressed air to an inner space 51a of the case 51;

A basket 52 installed in a cup shape to accommodate an object on an inner surface of the case 51 and having an air bag 52a connected to the third check valve 55 to receive compressed air; And

And a shoulder strap (56) installed at one side of the case (51) to fix the case (51) to the frame (41).
13. The carrier according to claim 12, wherein an air bag (51b) is connected to the third check valve (55) to receive compressed air inside the case (51).
14. The carrier according to claim 13, wherein the case (51) further includes an air stopper (57) communicating with the air bag (51b) and controlling the discharge of compressed air.
According to claim 2, Generator for generating electrical energy using the reciprocating motion of the handle portion;

A capacitor for storing the electrical energy; And

And a power connection terminal for supplying power to an application driven by using the electrical energy.