TWI653172B - Trolley with quick release device - Google Patents

Abstract

A trolley with a quick release device, including a trolley, a quick release device and a carrying device, wherein the carrying device is detachably connected to the trolley by a quick release device, and the quick release device disclosed in the present invention utilizes a pressing lever when used When the pressing lever is pressed, the quick release device can be directly removed from the bracket of the trolley or installed with a carrying device for quick disassembly and assembly.

Description

Trolley with quick release device

The present invention relates to a cart, and more particularly to a cart having a quick release device.

The storage basket or the baby seat on the existing trolley is usually set at a fixed height or position. In the case of the storage basket, if the storage basket is placed on the trolley too low, the user is inconvenient to take and place the object. If the position of the storage basket on the trolley is too high, the remaining space under the storage basket is wasteful, and the trolley with the storage basket can only be provided with one storage basket, and the limited storage basket space is when a large number of items are placed. It will cause users trouble. In addition, the storage basket on the trolley can not be detachably fixed to the frame of the trolley, and it is also inconvenient to disassemble the entire storage basket for finishing contents, taking articles or cleaning. In addition, when the trolley is not in use, the user cannot take the storage basket for other purposes, so the storage space of the storage basket cannot be fully utilized, and the utility value is maximized, and the utility of the storage basket is also accepted. limit.

For a cart with a baby seat, the position of the baby seat on the trolley is also fixed. Generally, the baby seat on the trolley can only adjust the height of the front and rear (lying) for the baby seat, and cannot adjust the height of the upper and lower. Since the baby seat is fixed on the trolley, the baby seat cannot be removed from the trolley for cleaning, so that after the baby seat is used for a period of time, there will be stains remaining, which may indirectly generate some bacteria and mold, resulting in accidental infection of the baby. disease. There are some Parents also want to put some baby clothes or supplies or backpacks on the baby stroller when going out to reduce the burden of weight on the body. Generally, these items are hung on the trolley, or It is a storage bag attached to the back or under the baby seat, but when there are too many items placed under the baby seat, it is not convenient to adjust the height of the baby seat and/or the storage bag or the basket. Take these items.

According to the above disadvantages of the prior art, the main object of the present invention is to disclose a trolley having a quick release device, which can be quickly removed or erected to the bracket of the trolley by the quick release device.

Another object of the present invention is to disclose a trolley with a quick release device. The quick release device is provided with a pressing lever. When the user presses the pressing lever, the quick release device can be directly removed or installed from the bracket of the trolley. The carrying device achieves the purpose of quick disassembly.

It is still another object of the present invention to disclose a cart having a quick release device having a support post that can be coupled to a bracket of the cart and secured to the bracket for supporting the carrier.

A further object of the present invention is to disclose a trolley having a quick release device that allows a user to quickly adjust the height of the carrier on the support of the trolley using the quick release device.

According to the above object, the present invention discloses a trolley with a quick release device, including a trolley, a quick release device and a carrying device, wherein the carrying device is detachably connected to the trolley by a quick release device, wherein the trolley has a frame and a roller The unit and the brackets on both sides of the frame are provided with a plurality of positioning holes, the spacing distance between each positioning hole is the same, and the positioning hole has an angle of 45 degrees with the horizontal plane.

The quick release device is disposed on the two side brackets of the frame, and each quick release device comprises a U-shaped body, a plurality of support columns and a pressing rod disposed on the substrate, and a resistance disposed on the other side of the substrate relative to the position of the pressing rod The column and the ring are formed by a spring that abuts the column. U-shaped body by the first block The block, the second block, the third block and the connecting portion are formed, wherein the third block is disposed under the second block, and one end of the first block, the second block and the third block is connected to the connecting portion Connecting, so that there is a hollow region between the first block and the second block, the second block has a plurality of first through holes and an accommodating space penetrating the second block, and the connecting portion has a second through the connecting portion The through hole, the third block has a third through hole, and the position of the third through hole corresponds to the position of the second through hole.

a plurality of support columns disposed on the substrate, the substrate being received in the accommodating space of the second block, and the positions of the support columns on the substrate corresponding to the plurality of first blocks of the second block a hole, each of the support columns is protruded from each of the first through holes, and the support columns pass through the hollow region between the first block and the second block, so that the top of each support column is held at the top A block.

Pressing the rod, disposed on the substrate and spaced apart from the support columns, the pressing rod portion is received in the second through hole of the connecting portion, and the pressing rod can reciprocate and retract in the second through hole, so that the pressing rod The top end may protrude from the top surface of the connecting portion or contract into the second through hole.

The column is received in the third through hole of the third block and reciprocally movable in the third through hole. The spring is disposed on the resisting column and is received in the third through hole of the third block.

The carrying device has two side edges respectively pivoted with each quick release device, and is coupled with the two side supports by a quick release device.

According to the above, when the external force is applied to the pressing rod, the pressing rod is caused to retract toward the second through hole of the connecting portion, and at the same time, the supporting columns on the substrate are caused by the external force in the first stopper and the second stopper. The intervening hollow region is retracted toward the accommodating space of the second block, and the resisting column is retracted toward the third through hole of the third block, and the spring is deformed, and the plurality of the supporting columns are facing the second block. Consistently shrinking the hole and allowing part of the support column and the substrate to be accommodated in the accommodating space, so that the hollow area between the first block and the second block does not have any support columns, and the U-shaped quick release device The hollow region of the body is inserted toward the brackets on both sides of the trolley such that the two brackets are respectively disposed between the hollow regions between the first stopper and the second stopper, and when the external force applied to the pressing lever disappears, the supports The column moves from the accommodating space of the second block toward the plurality of first through holes, and passes through a plurality of positioning holes on the two side brackets until the top end of each support column is held in the first block Up to the block, the resisting column moves over the third through hole of the connecting portion, and the deformed spring is restored, so that the carrying device is erected or disassembled in the space formed by the two side brackets of the trolley by the quick release device.

According to the above, the quick release device disclosed in the present invention utilizes a pressing lever. When the user presses the pressing lever, the quick release device can be directly removed from the bracket of the trolley or mounted with a carrying device for quick disassembly and assembly. .

1‧‧‧Trolley

10‧‧‧Hand grip

12‧‧‧Auxiliary pole

16‧‧‧ bracket

160‧‧‧ Positioning holes

18‧‧‧Roller unit

30, 33, 37‧‧‧ quick release device

302‧‧‧First stop

303‧‧‧ hollow area

304‧‧‧second stop

3042‧‧‧first through hole

306‧‧‧Substrate

308‧‧‧3rd stop

3082‧‧‧Through hole

310‧‧‧Connecting Department

312, 340‧‧‧ Pressing parts

314, 350‧‧‧ support column

316, 352‧‧‧ Pressing rod

318, 354‧‧‧Resist the column

320, 356‧ ‧ spring

332‧‧‧5th stop

3322‧‧‧5th through hole

3324, 3326‧‧‧ sixth recess

334‧‧‧ sixth stop

3342‧‧‧7th through hole

336‧‧‧ seventh block

3362‧‧‧8th through hole

3364, 3366‧‧‧ ninth through hole

338‧‧‧8th stop

3382‧‧‧Rotary key recess

3384‧‧‧ accommodating space

342‧‧‧Rotating parts

3502‧‧ ‧ Guide

360‧‧‧ gear

362‧‧‧Sleeve

364‧‧‧Gear rack

366‧‧‧ Track

40, 50‧‧‧Carmen

402‧‧‧ Groove

404‧‧‧ protruding structure

52‧‧‧Connected parts

522‧‧‧ jack

502‧‧‧ latch

60‧‧‧ Carrying device

70‧‧‧Storage basket

72‧‧‧ Baby seat

82‧‧‧Back of the chair

84‧‧‧ seat

A1, A2‧‧‧ arrows

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic illustration of a cart with a quick release device in accordance with the teachings of the present invention.

2A-2C are schematic views showing a quick release device in accordance with the disclosed technology.

3A-3B are schematic views showing a adjustable distance quick release device in accordance with the disclosed technology.

4A is a schematic view showing the adjustment of the adjustable distance quick release device in a horizontal direction in accordance with the disclosed technology.

4B is a schematic diagram showing the combination of the adjustable distance quick release device in a vertical direction in accordance with the disclosed technology.

Figure 5 is a schematic illustration of a quick release device having a reinforced structure in accordance with the teachings of the present invention.

6A and FIG. 6B are schematic diagrams showing the use of a combination of a slide rail and a groove in a carrier device and a quick release device according to the disclosed technology.

7A and 7B are schematic diagrams showing another embodiment of a combination of a carrier device and a quick release device utilizing a jack and a latch in accordance with the disclosed technology.

8A and 8B are schematic views showing the arrangement of quick release devices on brackets of different heights in accordance with the disclosed technology.

Figure 9 is a schematic illustration of the application of a quick release device to a cart with a basket according to the disclosed technology.

Figure 10 is a schematic view showing the application of the quick release device to a cart with a baby seat in accordance with the disclosed technology.

Figure 11 is a schematic view showing the application of the quick release device to a cart with a wheelchair in accordance with the disclosed technology.

Please refer to Figure 1 first. 1 shows a schematic view of a cart with a quick release device disclosed in the present invention. In FIG. 1 , the trolley is a common trolley, and has a bracket 16 and a roller unit 18 . The other side of the bracket 16 has a grip 10 , and the roller unit 18 is disposed under the bracket 16 to contact the ground. The trolley unit 18 can be moved on the ground, wherein the roller unit 18 can be as shown in FIG. 1 , and the two front rollers on the two sides of the bracket 16 are disposed on the two sides of the bracket 16 opposite to the front roller. The side bracket is provided with an auxiliary rod 12, and the auxiliary rod 12 is provided with at least one rear roller. The purpose of the roller unit 18 is designed to facilitate the movement of the trolley 1 in addition to facilitating the movement of the trolley 1, and it is explained that The number of front rollers or rear rollers is not limited in the present invention.

In addition, please refer to Figure 1 as well. A plurality of positioning holes 160 are disposed on the bracket 16, and the positioning holes 160 of each height on the two side brackets 16 correspond to each other, and the number of holes of the positioning holes 160 are the same. In the embodiment of the present invention, the positioning holes 160 are combined with the quick release device 30, and the quick release device 30 (as shown in FIGS. 2A-2C) and 33 can be arbitrarily adjusted according to the needs of the user. 3A - Figure 3B), 37 (shown in Figure 5) on the height of the brackets 16 on both sides. In addition, the distance between the positioning holes 160 on the side brackets 16 is the same, that is, as shown in FIG. 1, each of the positioning holes 160 in the X1 direction has the same separation distance, in the Y1 direction. A positioning hole 160 also has the same spacing distance, wherein the X1 direction is a direction in which the number of holes of the designated hole 160 is small. In FIG. 1, the number of holes of the designated hole 160 is only three, Y1. The direction is the direction in which the number of holes of the designated hole 160 is large. In the embodiment of the present invention, the positioning holes 160 on the two side brackets 16 have an angle with the horizontal mask, the angle is 30 degrees to 50 degrees. In the preferred embodiment, the positioning holes 160 on the side brackets 16 are The angle between the horizontal planes is preferably an angle of 45 degrees. It is to be noted that the angle between the positioning holes 160 and the horizontal mask referred to in the present invention means the angle between the Y1 direction and the horizontal plane.

Next, please refer to FIG. 2A to FIG. 2C at the same time. 2A through 2C are schematic views showing a quick release device in accordance with the disclosed technology. In FIG. 2A to FIG. 2C, the quick release device 30 includes a U-shaped body composed of a first stop 302, a second stop 304, a third stop 308, and a connecting portion 310, wherein the third block The block 308 is disposed under the second block 304. One ends of the first block 302, the second block 304, and the third block 308 are pivotally connected to the connecting portion 310, so that the first block 302 and the second block 304 are A hollow region 303 is formed between them. The second block 304 has a plurality of first through holes 3042 and a receiving space (not shown) extending through the second block 304, and a second through hole 3102 extending through the connecting portion 310 in the connecting portion 310, and A third through hole 3082 is disposed in the third block 308 at a position relative to the second through hole 3102, wherein the third through hole 3082 does not penetrate the third stop 308.

Next, please continue to refer to FIG. 2A to FIG. 2C. The quick release device 30 further includes a plurality of support columns 314 disposed on the substrate 306. The substrate 306 is received in the accommodating space (not shown) of the second block 304. The spacing distance between the first through hole 3042 and the first through hole 3042 of the second block 304 is corresponding to the spacing distance between the supporting blocks 314, so that the substrate 306 can be in the receiving space (not in the figure). The support column 314 can be reciprocated back and forth within the first through holes 3042. Each of the support posts 314 can be protruded from each of the first through holes 3042 in the second block 304, so that the support posts 314 can be worn. The hollow region 303 between the first block 302 and the second block 304, and the top of each support post 314 can be held by the first block 302.

It should be noted that the spacing distance between the support post 314 and the support post 314 is not only corresponding to the separation distance between the first through hole 3042 and the first through hole 3042 of the second block 304. Corresponding to the separation distance between the positioning holes 160 on the bracket 16 of the trolley 1. When the angle between the quick release device 30 and the horizontal plane is the same as the angle between the positioning hole 160 and the horizontal plane, that is, the X1 direction shown in FIG. 1, the distance between the support columns 314 is required to match the positioning hole 160 between the X1 directions. Separation distance.

With reference to FIG. 2A to FIG. 2C , a pressing rod 316 is further disposed on the substrate 306 . The pressing rod 316 has a spacing distance from the supporting post 314 , and the pressing rod 316 is received in the second through hole 3102 of the connecting portion 310 . The pressing rod 316 can reciprocate in the second through hole 3102 so that the top end of the pressing rod 316 can protrude from the top surface of the connecting portion 310 or be constricted into the second through hole 3102 of the connecting portion 310. In addition, in the embodiment of the present invention, a pressing member 312 is further disposed above the pressing rod 316 to facilitate the user to apply an external force to press the pressing rod 316 to operate the quick release device 30. It is to be noted that the pressing levers 316 may be disposed opposite to the bracket 16 of the cart 1 or the pressing levers 316 may respectively face the bracket 16 of the cart 1 .

Resisting the post 318, disposed on the other side of the substrate 306 and relative to the position of the pressing rod 316, the resisting post 318 is received in the third through hole 3082 of the third block 308 (shown in FIG. 2A), and Reciprocating in the third through hole 3082. The spring 320 is disposed on the abutting post 318 and is received in the third through hole 3082 of the third block 308 .

In another embodiment, when the quick release device 30 is disposed on the bracket 16 of the cart 1 in a horizontal direction (as shown in FIG. 4B), it means that the quick release device 30 is parallel to the horizontal plane and has a tilt with the positioning hole 160. Angle; but when the quick release device 30 and the positioning hole 160 are combined in the vertical direction (as shown in FIG. 4A), it is known by mathematical principle that the distance of the oblique angle is greater than the distance of the straight line, therefore, When the quick release device 30 is combined with the positioning hole 160 of the bracket 16 in the horizontal direction (parallel to the horizontal plane), it is necessary to change the separation distance between the support columns 314 of the quick release device 30. Therefore, in the embodiment of the present invention, another adjustable distance quick release device 33 is proposed to solve the vertical direction of the quick release device 30 by changing the separation distance between the support columns 33 of the quick release device 33 (with the positioning hole) 160 is vertical) adjusted to the technical problem when combined in the horizontal direction (parallel to the horizontal plane).

Please refer to FIG. 3A and FIG. 3B. 3A and 3B are schematic views showing the adjustable distance quick release device according to the disclosed technology. In FIG. 3A, the adjustable distance quick release device 33 has a fifth stop 332, a sixth stop 334, a seventh stop 336 and an eighth stop 338, wherein the sixth stop 334 is disposed at the fifth stop 332. And the seventh block 336 is disposed at one side of the fifth block 332 and the seventh block 336 such that the sixth block 334 and the seventh block 336 are pivoted by the sixth block 334 In addition, on the other side of the fifth block 332 and the seventh block 336, since there is no sixth block 334, a hollow region 303 is formed between the fifth block 332 and the seventh block 336. The eighth stop 338 is disposed below the seventh stop 336.

Please continue to refer to Figure 3A. The fifth end of the fifth block 332 and the sixth block 334 has a fifth through hole 3322 extending through the fifth block 332 and a plurality of sixth recessed holes 3324 at a distance from the fifth through hole 3322. 3326, the sixth recessed holes 3324, 3326 do not penetrate the fifth stopper 332, and the sixth recessed hole 3324 is the size of the combination of the two sixth recessed holes 3326, and the sixth recessed holes 3324, 3326 are designed for the subsequent paragraphs. statement.

There is a seventh through hole 3342 extending through the sixth stopper 334 in the sixth stopper 334. In FIG. 3A, the sixth stopper 334 is designed to be approximately triangular, but the sixth gear is not limited in the present invention. The shape of block 334. The seventh stopper 336 is provided with an eighth through hole 3362 extending through the seventh stopper 336 at a position pivotally connected to the sixth stopper 334, and corresponding to the sixth stopper 334, the sixth recessed holes 3324, 3326 The position is provided with a ninth through hole 3364, 3366 penetrating through the seventh block 336, wherein the ninth through hole 3366 corresponds to the sixth recessed hole 3326, and the other ninth through hole 3364 corresponds to the sixth recessed hole 3324, and also That is, the size of the ninth through hole 3364 is the size of the two ninth through holes 3366, but the inner diameters of the sixth recessed holes 3324, 3326 and the ninth through holes 3364, 3366 are the same, and the sizes of the sixth recessed holes 3324, 3326 are the same. It is also the same size as the ninth through holes 3364, 3366. A plurality of support columns 350 are disposed in the ninth through holes 3364, 3366 of the seventh block 336, and an adjustable distance assembly is disposed below the seventh block 336, and the quick release device 33 is converted into a vertical direction in the horizontal direction. When the vertical direction is converted into the horizontal direction in combination with the positioning hole 160 of the bracket 16, the adjustable distance assembly is used to adjust the separation distance between the support column 350 and the support column 350, so that the support column 350 can be converted from a horizontal direction to a vertical direction. The direction is either converted from the vertical direction to the horizontal direction and combined with the positioning hole 160 of the bracket 16.

In the embodiment of the present invention, taking the quick release device 33 of FIG. 3A as an example, the adjustable distance assembly is composed of at least a gear 360, a sleeve 362, a carrier 364, a track 366 and a guide bar 3502, wherein the gear 360 and the sleeve The 362 and the carrier 364 are connected by a track 366. The guiding rod 3502 is disposed in the supporting column 350. The sleeve 36 is used to support the column 350 and the guiding rod 350 below the supporting column 350 (as shown in the left side of the drawing in FIG. 3A). The post 350) can reciprocate and retract within the through holes (not shown) of the ninth through holes 3364, 3366 of the seventh stop 336 and the eighth stop 338. The gear 360 is pivotally coupled to the guide bar 3502 below the support post 350 (such as the support post 350 in the middle of the drawing in FIG. 3A). A guide bar 3502 underneath the other support post 350 (such as the support post 350 on the right side of the drawing in FIG. 3A) is an opening that passes through the carrier 364. Therefore, when the quick release device 33 is converted from the vertical direction to the horizontal direction (the quick release device 33 and the bracket 16 are vertically converted to be parallel to the horizontal plane of the bracket 16), that is, the X1 direction is converted into the X2 direction, as shown in FIG. 4A. Because the foregoing mathematical principle knows that the distance of the oblique angle is greater than the distance of the straight line, when the quick release device 33 is changed to be horizontally disposed on the bracket 16 in the vertical direction, it can be utilized under the eighth stopper 338, and the rotary key is used. When the rotating member 342 on the recess 3382 rotates clockwise to the right, the support post 350 on the left side of the drawing of FIG. 3A moves toward the left side of the drawing (ie, the direction of the arrow A1), and at the right side of the drawing of FIG. 3A. The support column 350 will move toward the right side of the drawing (ie, the direction of the arrow A2), so that the separation distance between the support columns 350 is adjusted so that the quick release device 33 is horizontal with the horizontal plane. The spacing distance of the orientation (when the support post 350 and the positioning hole 160 are joined at an oblique angle), as shown in FIG. 4B. On the other hand, if the quick release device 33 is to be changed from the horizontal direction to the vertical direction on the bracket 16, that is, the X2 direction is changed to the X1 direction, and the combination of FIG. 4B is changed to the combination mode of FIG. 4A, the rotary member 342 is rotated. Rotating counterclockwise to the left, the support column 350 on the left side of the plane of FIG. 3A will move toward the right side of the drawing (in the opposite direction of the arrow A1), and at the same time, the support column 350 on the right side of the drawing of FIG. 3A will face the figure. The left side of the face moves (opposite to the arrow A2) such that the separation distance between the support columns 350 is adjusted so that the quick release device 33 is spaced apart from the bracket 16 by a vertically parallel direction, as shown in Fig. 4A.

3A and FIG. 3B , the same as the quick release device 30 of FIGS. 2A-2C , the seventh block 336 is further provided with a pressing stalk 352 , and the pressing rod 352 and the supporting column 350 have a The pressing rod 352 can be received in the seventh through hole 3342 of the sixth block 334, and the pressing rod 352 can reciprocate and retract in the seventh through hole 3342 so that the top end of the pressing rod 352 can protrude from the fifth position. The top surface of the stopper 332 is retracted into the seventh through hole 3342 of the sixth stopper 334. Similarly, in the embodiment of the present invention, a pressing member 340 is disposed above the pressing lever 352 to facilitate the user to apply an external force to press the pressing lever 352 to operate the quick release device 33, so that the support post 350 can face the eighth blocking block. The accommodating space 3384 in the 338 is accommodated, or the support post 350 passes through the hollow portion 342 through the accommodating space 3384 through the eighth through hole 3362 of the seventh block 336, so that the top end of the support post 350 is held at the top Six recessed holes 3324, 3326. It should be noted that, similarly to the pressing lever 316 of the quick release device 30 described above, the pressing lever 352 of FIGS. 3A and 3B can be disposed opposite to the bracket 16 of the cart 1 or the pressing lever 316 can respectively face the bracket 16 of the cart 1 respectively. .

The abutting post 354 is disposed on a side of the seventh stopper 336 facing the eighth stopper 338, and corresponding to the position of the pressing lever 352, the resisting post 354 is received in the through hole of the eighth stopper 338 (not Inside the figure, it reciprocates within a through hole (not shown) of the eighth stop 338. The spring 356 is disposed on the abutting post 354 and is received in a through hole (not shown) of the eighth block 338.

In the preferred embodiment of the present invention, the number of support posts 314, 350 in the quick release device 30 (Figs. 2A-2C) and the quick release device 33 (Figs. 3A and 3B) is matched in the X1 (or X2) direction. The number of the holes of the positioning holes 160 in the bracket 16 is three, and the number of the holes of the positioning holes 160 in the X1 direction is three, and the number of the support columns 314 and 352 is also three. And the first through hole 3042 on the second stop 304 of the U-shaped body in FIGS. 2A-2C is also three, and the support post 352 on the seventh stop 336 in FIGS. 3A and 3B is also 3 In another preferred embodiment of the present invention, in order to enhance the supporting force and the fixing strength of the support columns 314 and 352 of the quick release devices 30 and 33, the support column 314 in the U-shaped body and the seventh block are disposed. The support posts 352 on the 336 can be set to six, as shown in FIG. 5. Similarly, the first through holes 3042 on the second stop 304 in the U-shaped body are six. Here, the structure and function of the quick release device 37 having the six support columns 314, 352 are the same as those of the quick release devices 30, 33 described above, and therefore, the description will not be repeated.

Next, please refer to FIG. 6A and FIG. 6B. 6A and 6B are schematic diagrams showing the combination of a carrier device and a quick release device in accordance with the disclosed technology. In FIG. 6A, the two sides of the carrying device 60 are pivotally connected to each of the quick release devices 30 (shown in FIG. 2C), 33 (shown in FIG. 3B), and 37 (shown in FIG. 5). The quick release devices 30, 33, 37 combine the carrier device 60 with a bracket (not shown) of the cart (not shown). Specifically, in the embodiment of the present invention, the carrying device 60 and the quick release device 30, 33, 37 are pivotally connected by the protruding structure 404 and the cassette 40 having the groove 402, wherein both sides of the carrying device 60 are A cassette 40 having a recess 402 is provided, and a protruding structure 404 is disposed on the U-shaped body of the quick release device 30, 33, 37 as a slide rail, so that the carrying device 60 utilizes the cassette 40 having the recess 402 and quick release. The protruding structures 404 on the U-shaped body of the devices 30, 33, 37 are fitted to achieve the purpose of pivoting the carrier device 60 with the quick release devices 30, 33, 37.

In addition, please refer to FIG. 7A and FIG. 7B. FIG. 7A and FIG. 7B are schematic diagrams showing another embodiment of the combination of the carrying device and the quick release device according to the disclosed technology. 7A and 7B, similar to FIGS. 6A and 6B, the two sides of the carrying device 60 are respectively associated with each quick release device 30, 33, 37 is pivotally coupled by means of quick release devices 30, 33, 37 to the carrier (not shown) of the trolley (not shown). In this embodiment, the carrier device 60 and the quick release device 30, 33, 37 are pivotally connected to the cassette 50 having the latch 502 by a coupling member 52 having a socket 522, wherein the carrier 60 is provided on both sides thereof. The latch 50 of the latch 502 is provided with a coupling member 52 having a socket 522 on the U-shaped body of the quick release device 30, 33, 37, so that the carrier device 60 utilizes the cartridge 50 having the latch 502 and the quick release device 30, 33, 37 of the second stop (not shown) and the third stop (not shown), the coupling member 50 having the receptacle 522 is fitted to reach the carrying device 60 and the quick release device 30 The purpose of pivoting 33, 37. It should be noted that the manner in which the carrying device 60 is pivotally connected to the quick release devices 30, 33, 37 is not limited to the above-mentioned protruding structure 404, the cassette 40 having the groove 402 is as shown in FIGS. 6A and 6B, or A coupling 52 having a receptacle 522 and a latch 50 having a latch 502 (shown in Figures 7A and 7B).

Therefore, according to the above, the process of disassembling and mounting the quick release device disclosed in the present invention on the bracket is as follows. The quick release device 30 shown in FIGS. 2A-2C, the quick release device 33 shown in FIGS. 3A-3B or the reinforced quick release device 37 shown in FIG. 5 are the same in the process of disassembly and installation on the bracket. Therefore, for convenience of explanation, only the quick release device 30 shown in FIGS. 2A to 2C will be described as an example. After the carrier device 60 is combined with the quick release device 30 in the manner of FIG. 1 described above, after the external force is applied to the pressing member 312 of the quick release device 30, after the pressing member 312 comes into contact with the pressing lever 316, the pressing lever 316 is directed toward the connecting portion 310. The second through hole 3102 is retracted therein, and at the same time, the support post 314 on the substrate 306 moves from the hollow region 303 between the first stopper 302 and the second stopper 304 toward the second stopper 304 in accordance with the direction of the additional force. The accommodating space (not shown in the figure) is retracted (as shown in FIG. 2B), and the resisting post 318 is retracted toward the third through hole 3082 in the third block 308, and the ring is compressed downward due to the resisting post 318. The spring 320 disposed on the resisting post 318 causes the spring 320 to deform, and the support post 314 on the substrate 306 is retracted toward the first through hole 3042 of the second block 304, and the column of the partial support post 314 is caused. The body is placed in the accommodating space of the second block 304 (not shown in the figure), at this time, The hollow region 303 between the first block 302 and the second block 304 does not have any support columns 314. At this time, the hollow region 303 of the U-shaped body of the quick release device 30 is inserted toward the bracket 16 of the cart 1 so that both sides The brackets 16 are respectively disposed in the hollow regions 303 between the first block 302 and the second block 304. When the external force applied to the pressing lever 316 disappears (ie, the user releases the pressing lever 316), each of the support posts 314 of the quick release device 30 is accommodated by the second stopper 304 (not shown). The inner portion moves toward the first through hole 3042 and passes through the positioning holes 160 on the side brackets 16 until the top end of each of the support columns 314 is held by the first block 302, and the column is resisted. The 318 is moved upwardly toward the third through hole 3082 of the connecting portion 310 so that the deformed spring 320 is restored (as shown in FIG. 2C ), and the carrying device 60 can be erected or detached from the two side brackets 16 of the trolley 1 . Within the space.

In the embodiment of the present invention, the quick release devices 30, 33, 37 may be disposed at any position on the bracket 16, as shown in FIG. 8A, and the carrier 60 having the quick release device may be disposed on the bracket 16 to be taller. The position, that is, the distance from the hand grip 10 of the cart 1 is relatively close. In another embodiment, the carrier 60 having the quick release devices 30, 33, 37 can be disposed at a lower position on the bracket 16, i.e., a distance from the handle 10 of the cart 1, as shown in Figure 8B. . Therefore, according to the user's needs, according to the operation mode of the quick release device 30, 33, 37, the carrier device 60 can be quickly detached from the trolley 1 and installed at a height required by the user to increase the user's use. Convenience.

Next, please refer to FIG. 9 to FIG. Figure 9 is a schematic view showing the application of the quick release device to a trolley having a storage basket; Figure 10 is a schematic view showing the application of the quick release device to a trolley having a baby seat; and Figure 11 is a view showing the application of the quick release device to a trolley with a wheelchair. schematic diagram. In the embodiment of the present invention, the carrying device 60 may be a storage basket 70, a baby seat 72, a wheelchair having a seat back 82 and a seat 84, so when the carrying device 60 is the storage basket 70, the trolley becomes a shopping cart, such as Figure 9 shows. Therefore, users are visiting supermarkets, traditional markets or going to large stores. At the time of shopping, one or more baskets 70 (combined with the aforementioned Figs. 8A and 8B) may be placed on the cart 2, and the purchased items are placed in the basket 70. When the carrying device 60 is the baby seat 72, as shown in FIG. 10, the trolley becomes a baby stroller, and the height of the baby seat 72 on the bracket 16 can be adjusted directly according to the needs of the parents, so that the parents can take care of the baby at any time. . If the carrying device 60 is a wheelchair, as shown in FIG. 9, the seat back 82 and the seat 84 of the wheelchair can be pivotally connected to the bracket 16 of the trolley by the quick release device 30, respectively, and become a wheelchair stroller, which can facilitate the action at home. Inconvenient for patients to use. If the carrier is a storage panel (not shown), the trolley becomes a cargo trolley that can generally carry and carry cargo. The above-mentioned carrying device can be quickly disassembled and installed by the quick release device to increase the usability of the user.

According to the trolley with the quick release device disclosed in the present invention, the quick release device can be used to quickly mount the carrier device to the trolley or be removed from the trolley, and arbitrarily adjust the height required by the user, so that the user is using the trolley It is more convenient than on. On the other hand, the user can install different carrying devices on the trolley as needed, for example, when the baby is going to go out, the storage basket can be removed, replaced with a baby seat, or a baby seat can be added under the baby seat. The basket is used to increase the practicality of the trolley.

Claims (10)

A trolley with a quick release device includes: a trolley with a frame and a transmission unit, the transmission unit is disposed under the frame for allowing the trolley to be arbitrarily moved, and the brackets on both sides of the frame are provided a plurality of positioning holes, wherein the heights of the positioning holes of the two side brackets correspond to each other; a pair of quick release devices are respectively disposed on the two side brackets of the frame, and each of the quick release devices comprises: a U-shaped The main body has a first block, a second block, a third block and a connecting portion, and the third block is disposed under the second block, the first block, One end of the second block and the third block are pivotally connected to the connecting portion, so that a hollow area is formed between the first block and the second block, and the second block has a plurality of penetrating portions a first through hole of the second block and an accommodating space, the connecting portion has a second through hole penetrating the connecting portion, the third block has a third through hole, and the third through hole Position corresponding to the position of the second through hole; a plurality of support columns, the support columns are disposed on a substrate The substrate is received in the accommodating space of the second block, and the positions of the support columns on the substrate correspond to the first through holes of the second block, and each of the supports a column protruding from each of the first through holes, the support columns passing through the hollow region between the first block and the second block, such that a top of each of the support columns is held a pressing block disposed on the substrate and spaced apart from the support columns, the pressing rod portion being received in the second through hole of the connecting portion, and The pressing rod can reciprocate and retract in the second through hole, such that a top end of the pressing rod can protrude from a top surface of the connecting portion or retract into the second through hole; a resisting column disposed on the other side of the substrate relative to the pressing rod, received in the third through hole of the third block, and reciprocally movable in the third through hole; and a a spring disposed on the resisting post and received in the third through hole of the third block; a carrying device, the two sides of the carrying device are respectively pivoted with each of the quick release devices by the The quick release device is coupled to the two side brackets, whereby when the external force is applied to the pressing rod, the pressing rod is retracted toward the second through hole of the connecting portion, and at the same time on the substrate The support column is retracted toward the accommodating space of the second block by the external space between the first block and the second block, and the resisting post faces the third block The third through hole is retracted and deforms the spring, and the support columns are retracted toward the first through holes of the second block, and a part of the support columns and the substrate are received in the In the accommodating space, the hollow region between the first block and the second block does not have any of the support columns, and the quick release is performed. Inserting the hollow area of the U-shaped body toward the two side brackets of the trolley, such that the two side brackets are respectively disposed between the hollow areas between the first stop and the second stop, When the external force of the pressing rod disappears, the supporting columns are moved by the accommodating space of the second block toward the first through holes, and the positioning is performed on the two side brackets. a hole until the top end of the support columns is held by the first stopper, and the resisting column moves toward the third through hole of the connecting portion to restore the deformed spring, so that the supporting device The quick release device can be erected or disassembled in the space formed by the two side brackets of the trolley. The handcart with a quick release device according to the first aspect of the invention, further comprising a adjustable distance component under the substrate, wherein the adjustable distance component is configured to adjust the support columns relative to the positioning holes Separation distance. The handcart with a quick release device according to claim 2, wherein the adjustable distance assembly comprises at least a gear, a sleeve, a carrier, a track and a plurality of guide bars, the gear, the sleeve And the carrier is connected by the rail, each of the guiding rods is disposed on each of the supporting columns, and the spacing distance of the positioning holes is adjusted by the gears to adjust each of the supporting columns and each of the supporting columns The distance between the two. A handcart having a quick release device according to claim 1, wherein the plurality of positioning holes of each horizontal row on the two side brackets are at least three. A handcart having a quick release device according to claim 1 or 2, wherein the positioning holes on the two side brackets have a 45 degree angle with a horizontal mask. A handcart having a quick release device according to claim 1 or 2, wherein a distance between each of the positioning holes on the two side brackets is between each of the support columns The separation distance is the same. A handcart having a quick release device according to claim 1, wherein the first through holes have at least three or six. A handcart having a quick release device according to claim 1, wherein the support columns have at least three or six. A handcart having a quick release device according to claim 1, wherein the pressing lever is disposed opposite to the two side brackets. A handcart having a quick release device according to claim 1, wherein the pressing lever faces the two side brackets.