TWM596185U - Cart - Google Patents

Abstract

一種推車，包含一承載底座、一承載支架組、二主輪、一輔助支架組以及至少一輔助輪。承載底座包括一本體及與該本體同體連接於該本體之前緣的一底座把手。該二主輪相間隔地設置於承載底座之後緣處。承載支架組自承載底座之後緣處夾一角度延伸並與承載底座共同形成供高壓氣體容器容置的空間。輔助支架組設置於承載支架組的後方，可在一展開狀態及一收合狀態間變換，而輔助輪設置於該輔助支架組底部。當輔助支架組在展開狀態，該輔助輪與主輪可轉動地共同支撐於地面上。當輔助支架組在該收合狀態，輔助支架組貼靠承載支架組。A cart includes a bearing base, a bearing bracket group, two main wheels, an auxiliary bracket group and at least one auxiliary wheel. The carrying base includes a body and a base handle connected with the body at the front edge of the body. The two main wheels are spaced apart at the rear edge of the carrying base. The supporting bracket group extends at an angle from the rear edge of the supporting base and forms a space for accommodating the high-pressure gas container together with the supporting base. The auxiliary bracket group is arranged behind the supporting bracket group, and can be switched between an expanded state and a collapsed state, and the auxiliary wheel is arranged at the bottom of the auxiliary bracket group. When the auxiliary bracket group is in the expanded state, the auxiliary wheel and the main wheel are rotatably supported on the ground. When the auxiliary bracket group is in the collapsed state, the auxiliary bracket group abuts the bearing bracket group.

Description

推車Trolley

本新型是有關於一種推車，特別是指一種適用於運送高壓氣體容器的推車。The present invention relates to a cart, especially a cart suitable for transporting high-pressure gas containers.

工業用氣體，常以壓縮形式填充於高壓氣體容器(又稱氣瓶、鋼瓶)中，再運送至工作地點進行供給。該高壓氣體容器的運送，例如從運送車卸載及移動至工作地點，或者從儲藏場所移動至工作地點，皆存在人工搬運移動的需求。由於氣體本身的危險性、高壓氣體容器的重量以及環境地形(例如斜坡)等原因，人工搬運移動的任務往往是困難且需要相當小心的。Industrial gas is often filled in high-pressure gas containers (also called gas cylinders and steel cylinders) in compressed form, and then transported to the work place for supply. For the transportation of the high-pressure gas container, for example, unloading and moving from the transportation vehicle to the work place, or moving from the storage place to the work place, there is a need for manual handling and movement. Due to the danger of the gas itself, the weight of the high-pressure gas container and the environmental terrain (such as slopes), the task of manual handling and movement is often difficult and requires considerable care.

現有技術中，操作者會使用具有輪子的推車進行搬運，然而現有推車在實際使用上仍有不易施力、操作安全疑慮或收合不便等缺點。In the prior art, the operator will use a cart with wheels to carry it. However, the actual cart still has the disadvantages of being difficult to apply force, operating safety concerns or inconvenience in folding.

因此，本新型之目的，即在提供一種能改善現有技術缺點的推車。Therefore, the purpose of the present invention is to provide a cart that can improve the shortcomings of the prior art.

於是，本新型推車，包含一個承載底座、一個承載支架組、二個主輪、一個輔助支架組以及至少一輔助輪。Therefore, the new cart includes a bearing base, a bearing bracket group, two main wheels, an auxiliary bracket group and at least one auxiliary wheel.

該承載底座包括具有一前緣及遠離該前緣之一後緣的一本體，及與該本體同體連接於該本體之該前緣的一底座把手。該二主輪彼此相間隔地設置於該承載底座之後緣處。The carrying base includes a body having a front edge and a rear edge away from the front edge, and a base handle connected with the body at the front edge of the body. The two main wheels are spaced apart from each other at the rear edge of the carrying base.

該承載支架組自該承載底座之該後緣處夾一角度延伸，該承載支架組與該承載底座共同形成供一高壓氣體容器容置的空間。The bearing bracket group extends at an angle from the rear edge of the bearing base. The bearing bracket group and the bearing base together form a space for accommodating a high-pressure gas container.

該輔助支架組設置於該承載支架組的後方，可在一展開狀態及一收合狀態間變換。該至少一輔助輪設置於該輔助支架組底部。當該輔助支架組在該展開狀態，該輔助輪係可轉動地與該二主輪共同支撐於地面上。當該輔助支架組在該收合狀態，該輔助支架組貼靠該承載支架組。The auxiliary bracket group is arranged behind the supporting bracket group, and can be switched between an expanded state and a collapsed state. The at least one auxiliary wheel is disposed at the bottom of the auxiliary bracket group. When the auxiliary bracket group is in the deployed state, the auxiliary wheel system is rotatably supported on the ground together with the two main wheels. When the auxiliary bracket group is in the collapsed state, the auxiliary bracket group abuts the bearing bracket group.

本新型之功效在於可供使用者在搬運過程中方便地施力，並且能夠安全穩定地移動，而改善先前技術至少一缺失。The effect of the present invention is that the user can conveniently apply force during the transportation process, and can move safely and steadily, and at least one deficiency of the prior art is improved.

參閱圖1及圖2，本新型推車100的實施例，包含一個承載底座1、一個承載支架組2及二個主輪41，並且為了移動上的安全及穩定，還包含一個輔助支架組3、一個輔助輪42，及用於使該輔助支架組3在一收合狀態下定位的一個定位機構5。此外，本實施例還包含用於避免使用者夾手的二個安全機構6。Referring to FIGS. 1 and 2, an embodiment of the novel cart 100 includes a load-bearing base 1, a load-bearing bracket group 2 and two main wheels 41, and for safety and stability in movement, an auxiliary bracket group 3 is also included , An auxiliary wheel 42, and a positioning mechanism 5 for positioning the auxiliary bracket group 3 in a folded state. In addition, this embodiment also includes two safety mechanisms 6 for preventing the user from pinching his hands.

在本實施例，該承載底座1具有一平板狀的本體11，及與該本體11同體連接的一底座把手12。該本體11具有一前緣111及遠離該前緣111之一後緣112。該底座把手12與該前緣111相連接，當兩位使用者操作該推車100上下斜坡時，該底座把手12可供其中一位使用者握持以便於施力。本實施例中，該底座把手12為片狀，且與該本體11 共平面；在其他實施例，底座把手12可藉由例如焊接方式連接於該本體11之前緣111。In this embodiment, the carrying base 1 has a flat body 11 and a base handle 12 connected with the body 11. The body 11 has a leading edge 111 and a trailing edge 112 away from the leading edge 111. The base handle 12 is connected to the front edge 111. When two users operate the cart 100 up and down the slope, the base handle 12 can be held by one of the users to apply force. In this embodiment, the base handle 12 is sheet-shaped and coplanar with the body 11; in other embodiments, the base handle 12 can be connected to the front edge 111 of the body 11 by, for example, welding.

該承載支架組2自該承載底座1之後緣112處夾一角度(本實施例為90°)延伸，與該承載底座1共同形成供一高壓氣體容器(圖未示)容置之空間。該承載支架組2包括多個縱向支架21、多個橫向支架22、二個第一結構桿24及一個第二結構桿25。該等縱向支架21為縱向延伸且側向間隔排列，該等橫向支架22呈彎弧狀延伸且弧狀開口方向朝前、彼此上下間隔排列，並與該等縱向支架21垂直交會固定。其中，排列在最左側與最右側的縱向支架21與最上方的橫向支架22同體相連，並且該最左側與最右側的縱向支架21在接近最上方橫向支架22的一段係略微朝後彎折而形成一推車把手23。該二第一結構桿24左右間隔排列地固定連接於該最左側與最右側的縱向支架21後方，而該第二結構桿25則是橫向連接該二第一結構桿24。各該第一結構桿24概呈一夾鈍角的L型(見圖4)，而具有一上段241及較該上段241短的一下段242。為後續說明方便，將該承載支架組2整體區分為靠近該承載底座的一下部201及連接於該下部201之上方的一上部202。該第一結構桿24的上段241與對應之縱向支架21夾一銳角連接，且連接處係位於該上部202；該第一結構桿24的下段242與同一縱向支架21連接處則位於該下部201，且該第一結構桿24的上段241與下段242夾一鈍角同體連接。The supporting bracket group 2 extends from the rear edge 112 of the supporting base 1 at an angle (90° in this embodiment), and forms a space for accommodating a high-pressure gas container (not shown) together with the supporting base 1. The bearing bracket group 2 includes a plurality of longitudinal brackets 21, a plurality of horizontal brackets 22, two first structural rods 24 and a second structural rod 25. The longitudinal brackets 21 extend longitudinally and are arranged at intervals in the lateral direction. The lateral brackets 22 extend in a curved arc shape and the arc-shaped openings are directed forward and are spaced up and down from each other, and are perpendicularly fixed to the longitudinal brackets 21. Among them, the longitudinal brackets 21 arranged on the leftmost and rightmost sides are connected with the uppermost horizontal bracket 22, and the longitudinal brackets 21 on the leftmost and rightmost sides are slightly bent back toward a section close to the uppermost horizontal bracket 22 Instead, a cart handle 23 is formed. The two first structural rods 24 are fixedly connected to the rear of the leftmost and rightmost longitudinal supports 21 in a line-by-line arrangement, and the second structural rod 25 connects the two first structural rods 24 laterally. Each of the first structural rods 24 has an obtuse L-shape (see FIG. 4 ), and has an upper section 241 and a lower section 242 shorter than the upper section 241. For the convenience of subsequent description, the entire supporting bracket group 2 is divided into a lower portion 201 close to the supporting base and an upper portion 202 connected above the lower portion 201. The upper section 241 of the first structural rod 24 is connected to the corresponding longitudinal bracket 21 at an acute angle, and the connection is located at the upper portion 202; the lower section 242 of the first structural rod 24 and the same longitudinal bracket 21 are located at the lower portion 201 , And the upper section 241 and the lower section 242 of the first structural rod 24 are connected together at an obtuse angle.

該二主輪41係相間隔地設置於該承載底座1之後緣112處。該二主輪41透過一輪軸40相互串接，且該輪軸40橫向固定設置於該二第一結構桿24的下段242接近該鈍角處，使得當該推車100傾斜時，該二主輪41接觸地面而該承載底座1不接觸地面。The two main wheels 41 are disposed at the rear edge 112 of the carrying base 1 at intervals. The two main wheels 41 are serially connected to each other through a wheel shaft 40, and the wheel shaft 40 is laterally fixed at the lower section 242 of the two first structural rods 24 near the obtuse angle, so that when the cart 100 is tilted, the two main wheels 41 It touches the ground and the carrier base 1 does not touch the ground.

該輔助支架組3設置於該承載支架組2的後方，可在如圖2及圖3所示的一展開狀態及如圖6所示的一收合狀態間變換，變換過程如圖4及圖5所示。該輔助支架組3包括相互樞接的一個第一架體31、一個第二架體32與一個第三架體33，及一個U型把手34。該第一架體31呈V型，整體而言具有與該承載支架組2的該上部202樞接的一第一端311(實際上有兩個樞接點，分別位於該最左側與最右側的縱向支架21的彎折之處)，及遠離該第一端311的一第二端312。該輔助輪42設置於該輔助支架組底部，具體來說，是固定於該第一架體31之第二端312處。該第二架體32具有與該承載支架組2的下部201樞接的一第一端321，及遠離該第一端321的一第二端322。具體而言，該第二架體32係樞接於該第二結構桿25上。該第三架體33具有一第一端331及一第二端332，並以該第一端331與該第一架體31的鄰近第二端312處相互樞接，以該第二端332與該第二架體32的鄰近第二端322處相互樞接。該U型把手34具有二個末端341且共同固定在該第一架體31的鄰近該第二端312處，以供使用者握持以操作展開或收合。The auxiliary bracket group 3 is disposed behind the supporting bracket group 2 and can be switched between an expanded state as shown in FIGS. 2 and 3 and a collapsed state as shown in FIG. 6, and the conversion process is as shown in FIGS. 4 and 3 5 shows. The auxiliary bracket group 3 includes a first frame body 31, a second frame body 32 and a third frame body 33 pivotally connected to each other, and a U-shaped handle 34. The first frame 31 is V-shaped, and overall has a first end 311 pivotally connected to the upper portion 202 of the supporting bracket group 2 (in fact, there are two pivot points located at the leftmost and rightmost sides, respectively) And the second end 312 away from the first end 311. The auxiliary wheel 42 is disposed at the bottom of the auxiliary bracket group, specifically, is fixed at the second end 312 of the first frame 31. The second frame 32 has a first end 321 pivotally connected to the lower portion 201 of the supporting bracket group 2, and a second end 322 away from the first end 321. Specifically, the second frame 32 is pivotally connected to the second structural rod 25. The third frame 33 has a first end 331 and a second end 332, and the first end 331 is pivotally connected to the first frame 31 adjacent to the second end 312, and the second end 332 The second frame 32 is pivotally connected to the second end 322 adjacent thereto. The U-shaped handle 34 has two ends 341 and is fixed together at the first frame 31 adjacent to the second end 312 for the user to hold to operate to expand or collapse.

如圖3所示，當該輔助支架組3在該展開狀態，該第一架體31的第二端312向後樞擺遠離該承載支架組2，該第二架體32與該第三架體33張開的角度略微大於180°(也就是接近地面的那一側的夾角大於180°)。更具體來說，第二架體32與該第三架體33係L型鋼，其中該第二架體32具有長型的一主體部323、自該主體部323的一長側緣夾直角延伸而同樣為長型的一限位部324，及自該限位部324同平面進一步延伸以便使用者操作時握持的一突出片325。該第三架體33具有長型的一主體部333，及自該主體部333的一長側緣夾直角延伸而同樣為長型的一限位部334。該第三架體33係以其主體部333樞接於該第二架體32的主體部323，且定義兩者的樞接點為P點，該P點離該第二架體32的第二端322尚有一段距離，且P點至324上方平面的距離，大於P點至334上方平面加上324的厚度，藉此，該第二架體32與第三架體33在展開時的夾角可略大於180°。當該輔助支架組3在該展開狀態，該第二架體32在該P點至該第二端322之間的限位部324，會交疊於該第三架體33的限位部334之上，且該第三架體33的限位部334與該第二架體32的限位部324的重疊區會夾一微小角度，而使該第二架體32與第三架體33在夾角略微大於180°時達到限位。詳言之，因重物(高壓氣體容器)的作用力，使第二架體32有下壓第三架體33的作用力，而該二限位部324與334所夾的微小角度，使得該第二架體32從P點至第二端322的限位部324抵住第三架體33的限位部334，造成該輔助支架組3在展開狀態，除非特別施以往上外力，否則不會收合。前述突出片325，即提供一個方便施以外力的部件。當使用者欲收合該輔助支架組3時，可用手撥或用腳踢突出片325的方式，使該第二架體32與第三架體33的夾角小於180°而得以收合。As shown in FIG. 3, when the auxiliary bracket group 3 is in the deployed state, the second end 312 of the first frame body 31 pivots back away from the bearing bracket group 2, the second frame body 32 and the third frame body The opening angle of 33 is slightly larger than 180° (that is, the angle on the side close to the ground is larger than 180°). More specifically, the second frame body 32 and the third frame body 33 are L-shaped steel, wherein the second frame body 32 has an elongated body portion 323 extending from a long side edge of the body portion 323 at a right angle A limiting portion 324 that is also elongated, and a protruding piece 325 that extends further from the same plane of the limiting portion 324 for the user to hold when operating. The third frame body 33 has an elongated main body portion 333 and a limiting portion 334 that is also elongated and extends at a right angle from a long side edge of the main body portion 333. The third frame body 33 is pivotally connected to the main body portion 323 of the second frame body 32 with its main body portion 333, and defines the pivotal connection point of the two as point P, which is away from the first position of the second frame body 32 There is still a distance between the two ends 322, and the distance from point P to the plane above 324 is greater than the thickness from point P to the plane above 334 plus the thickness of 324, by which the second frame body 32 and the third frame body 33 are deployed The included angle can be slightly greater than 180°. When the auxiliary bracket set 3 is in the deployed state, the limiting portion 324 of the second frame 32 between the point P and the second end 322 overlaps the limiting portion 334 of the third frame 33 Above, and the overlapping area of the limiting portion 334 of the third frame body 33 and the limiting portion 324 of the second frame body 32 will have a slight angle, so that the second frame body 32 and the third frame body 33 The limit is reached when the included angle is slightly greater than 180°. In detail, due to the force of the heavy object (high-pressure gas container), the second frame 32 has the force to press down the third frame 33, and the small angle between the two limiting portions 324 and 334 makes the The limiting portion 324 of the second frame body 32 from the point P to the second end 322 abuts the limiting portion 334 of the third frame body 33, which causes the auxiliary bracket group 3 to be in a deployed state, unless an external force is applied Will not collapse. The aforementioned protruding piece 325 provides a component that facilitates the application of external force. When the user wants to fold the auxiliary bracket group 3, he can use a hand-pick or kick the protruding piece 325 to make the angle between the second frame body 32 and the third frame body 33 smaller than 180° to be folded.

參閱圖4、圖5及圖6，該輔助支架組3係藉助定位機構5來確實定位於該收合狀態。該定位機構5包括成一對的一個第一定位件51與一個第二定位件52，以及成另一對的一個第三定位件53與一個第四定位件54。在本實施例，該第一定位件51設置在該承載支架組2的上部202，具體來說是設置在其中一個橫向支架22的後側表面，且係由一長型片體呈U型彎折而成，具有一收容部511以及一開口512。該第二定位件52設置在該第二架體32鄰近第二端322處，具有可通過該第一定位件51的開口512且可收容於該收容部511內的一端部521。該第一定位件51與第二定位件52相向設置，在該輔助支架組3由該展開狀態變換至該收合狀態的過程中，該第二定位件52如圖5所示先卡入該第一定位件51。須說明的是，該第一定位件51與該第二定位件52的設置位置可互換。Referring to FIG. 4, FIG. 5 and FIG. 6, the auxiliary bracket group 3 is indeed positioned in the collapsed state by the positioning mechanism 5. The positioning mechanism 5 includes a pair of a first positioning member 51 and a second positioning member 52, and a pair of a third positioning member 53 and a fourth positioning member 54. In this embodiment, the first positioning member 51 is disposed on the upper portion 202 of the supporting bracket group 2, specifically, it is disposed on the rear surface of one of the lateral brackets 22, and is formed by a long piece bent in a U shape Folded, it has a receiving portion 511 and an opening 512. The second positioning member 52 is disposed at the second frame 32 adjacent to the second end 322 and has an opening 512 that can pass through the first positioning member 51 and can be received in the receiving portion 511. The first positioning member 51 and the second positioning member 52 are arranged to face each other. During the process of the auxiliary bracket group 3 changing from the expanded state to the collapsed state, the second positioning member 52 is first snapped into the First positioning member 51. It should be noted that the positions of the first positioning member 51 and the second positioning member 52 are interchangeable.

當該第二定位件52卡入該第一定位件51，事實上還沒有完成整體輔助支架組3的收合定位，尚需要第三定位件53與第四定位件54的配合。該第三定位件53設置在該承載支架組2的下部201，具體來說是設置在該第二結構桿25的後側表面，且與該第一定位件51相同地係由一長型片體呈U型彎折而成，具有一收容部531以及一開口532。該第四定位件54設置在該第一架體31鄰近第二端312處，具有可通過該第三定位件53的開口532且收容於該收容部531內的一端部541。該第三定位件53與第四定位件54相向設置，當前述第二定位件52卡入該第一定位件51後，使用者須進一步推壓該第一架體31而使該第四定位件54卡入該第三定位件53，才能夠如圖6所示真正完成收合定位。When the second positioning member 52 snaps into the first positioning member 51, in fact, the folding and positioning of the whole auxiliary bracket group 3 has not been completed yet, and the third positioning member 53 and the fourth positioning member 54 are still required to cooperate. The third positioning member 53 is disposed on the lower portion 201 of the supporting bracket group 2, specifically, is disposed on the rear surface of the second structural rod 25, and is similar to the first positioning member 51 by a long piece The body is bent in a U shape, and has a receiving portion 531 and an opening 532. The fourth positioning member 54 is disposed near the second end 312 of the first frame 31 and has an end 541 that can pass through the opening 532 of the third positioning member 53 and is received in the receiving portion 531. The third positioning member 53 is disposed opposite to the fourth positioning member 54. After the second positioning member 52 is engaged with the first positioning member 51, the user must further push the first frame 31 to position the fourth positioning member Only when the piece 54 is snapped into the third positioning piece 53, can the folding and positioning be truly completed as shown in FIG. 6.

詳細來說，參閱圖5及圖6，定義該輔助支架組3的第一架體31與該承載支架組2的樞接點為Q點，該第二架體32與該第三架體33的樞接點已如前述為P點，該第三架體33與該第一架體31的樞接點為R點。其中，當該第二定位件52卡入該第一定位件51，第二架體32與該 承載支架組2的相對位置固定不變，且此時Q點至P點的直線距離，係略大於Q點至R點的距離減掉R點到P點的距離。也就是說，P、Q、R點共同構成狹長的三角形。藉由該等架體之長型構件本身具備彈性變形的能力，當使用者繼續施力於該第一架體31上的U型把手34，在該第一架體31被推壓靠近該承載支架組2的過程中，當R點越過P、Q點的連線，會因結構變形後的還原趨勢，此時不需再施力，第一架體31也會被繼續推往承載支架組2，使得該第四定位件54可以如圖6所示卡入該第三定位件53，而使該輔助支架組3穩固定位於收合狀態。In detail, referring to FIG. 5 and FIG. 6, the pivot point of the first frame 31 of the auxiliary bracket group 3 and the bearing bracket group 2 is defined as the Q point, the second frame 32 and the third frame 33 As described above, the pivot connection point is P point, and the pivot connection point of the third frame body 33 and the first frame body 31 is R point. Wherein, when the second positioning member 52 is snapped into the first positioning member 51, the relative position of the second frame body 32 and the supporting bracket group 2 is fixed, and the linear distance from point Q to point P at this time is omitted. The distance from Q to R is less than the distance from R to P. In other words, points P, Q, and R together form a long and narrow triangle. With the elongated members of the frames themselves having the ability to elastically deform, when the user continues to apply force to the U-shaped handle 34 on the first frame body 31, the first frame body 31 is pushed close to the load During the process of bracket group 2, when point R crosses the connection between point P and point Q, there will be a reduction trend due to the deformation of the structure. At this time, no force is needed, and the first frame 31 will continue to be pushed towards the bearing bracket group. 2. The fourth positioning member 54 can be snapped into the third positioning member 53 as shown in FIG. 6, so that the auxiliary bracket group 3 is stably fixed in the folded state.

如圖1、2、3及圖7所示，本實施例還提供了避免使用者夾手的二個安全機構6，分別設置在該承載支架組2的左右兩側。每一安全機構6包括固定設置於該承載支架組2的其中一縱向支架21(最左側或最右側)的一限位套筒61、可活動地穿設於該限位套筒61內的一安全桿62，及自該安全桿62側向延伸的一限位銷63。該限位套筒61具有一上緣611及一下緣612，且橫截面呈C型而具有一穿槽613。該安全桿62係藉由穿設於固定在該承載支架組2的多個固定套筒60，而由該承載支架組2的上部202朝下及前方延伸至該承載底座1側邊接近其前緣111處。該安全桿62具有一鄰近該承載底座1的底端621。限位銷63自該安全桿62側向延伸，且其連接該安全桿62的一段具有小於該穿槽613的寬度w的直徑。As shown in FIGS. 1, 2, 3 and 7, this embodiment also provides two safety mechanisms 6 for preventing the user from pinching their hands, which are respectively disposed on the left and right sides of the bearing bracket group 2. Each safety mechanism 6 includes a limiting sleeve 61 fixedly disposed on one of the longitudinal brackets 21 (the leftmost or rightmost side) of the carrying bracket group 2, and a movable sleeve that is movably disposed in the limiting sleeve 61 The safety rod 62 and a limit pin 63 extending laterally from the safety rod 62. The limiting sleeve 61 has an upper edge 611 and a lower edge 612, and has a C-shaped cross section with a through slot 613. The safety bar 62 is passed through a plurality of fixing sleeves 60 fixed to the supporting bracket group 2, and extends downward and forward from the upper portion 202 of the supporting bracket group 2 to the side of the supporting base 1 close to the front 111 places. The safety bar 62 has a bottom end 621 adjacent to the carrying base 1. The limit pin 63 extends laterally from the safety rod 62, and a section of the limit pin 63 connected to the safety rod 62 has a diameter smaller than the width w of the through slot 613.

當該限位銷63沿該穿槽613移動到該限位套筒61上方、旋轉離開該穿槽613(防止安全桿62下滑)並抵達該限位套筒61的上緣611，此時該安全桿62如圖1及圖3所示處於一上縮位置，此時該安全桿62的底端621實質上與該承載底座1齊平而不觸地。當該限位銷63沿該穿槽613移動到該限位套筒61下方、旋轉離開該穿槽613(防止安全桿62接觸地面時被地面上推)並抵達或越過該限位套筒61的下緣612，此時該安全桿62如圖2所示處於一下放位置，此時該安全桿62的底端621向下伸出於該承載底座1而觸地。When the limit pin 63 moves along the through slot 613 above the limit sleeve 61, rotates away from the through slot 613 (to prevent the safety rod 62 from sliding down) and reaches the upper edge 611 of the limit sleeve 61, at this time As shown in FIGS. 1 and 3, the safety bar 62 is in a retracted position. At this time, the bottom end 621 of the safety bar 62 is substantially flush with the bearing base 1 without touching the ground. When the limit pin 63 moves along the through slot 613 under the limit sleeve 61, rotates away from the through slot 613 (to prevent the safety rod 62 from being pushed up by the ground when it touches the ground), and reaches or crosses the limit sleeve 61 At this time, the safety bar 62 is in the lowered position as shown in FIG. 2, and at this time, the bottom end 621 of the safety bar 62 extends downward from the carrying base 1 to touch the ground.

以下舉例說明使用者採用本實施例之推車100運送高壓氣體容器，例如，從一運送車卸載、移動、經一斜坡、抵達工作地點的具體操作方式。首先，如圖1所示，輔助支架組3處於收合狀態，且安全機構6處於上縮位置，此時承載底座1平貼地面，高壓氣體容器可放置入該承載底座1與該承載支架組2共同形成之空間內。固定好高壓氣體容器之後，使用者可握持U型把手34將該輔助支架組3展開，再握持推車把手23將整體推車100向後下方傾倒而使輔助輪42著地(如圖3所示)。整體推車100透過三個輪子(即主輪41與輔助輪42)進行移動，可穩定安全且省力地對高壓氣體容器進行搬運。遇到斜坡時，由於高壓氣體容器非常重，通常需要兩位使用者分別握持推車把手23進行拉，以及握持底座把手12進行推。為了避免使用者在握持底座把手12時因操作不慎(例如承載底座1猛然貼回地面)而夾傷手，此時可操作安全機構6使安全桿62處於下放位置(見圖2)。當使用者手握承載底座1的底座把手12時，突出之安全桿62與地面形成的高度空間，可提供避免手指壓傷之安全功能。此外，為了在斜坡上移動方便，一般而言會將該輔助支架組3進行收合，使得推車把手23可下壓，整體重心貼近斜坡，方便推移而避免傾倒。達到工作地點之後，則是使承載支架組2直立、操作安全機構6使安全桿62處於上縮位置、承載底座1貼地，且確定該輔助支架組3定位於收合狀態，然後使該高壓氣體容器移出該承載底座1與該承載支架組2共同形成之空間，抵達預定位置。The following is an example of a specific operation mode in which the user uses the cart 100 of this embodiment to transport a high-pressure gas container, for example, unloading from a transporting vehicle, moving, passing a slope, and arriving at a work place. First, as shown in FIG. 1, the auxiliary bracket group 3 is in the collapsed state, and the safety mechanism 6 is in the retracted position. At this time, the bearing base 1 is flat on the ground, and the high-pressure gas container can be placed into the bearing base 1 and the bearing bracket group. 2 In the space formed together. After fixing the high-pressure gas container, the user can hold the U-shaped handle 34 to expand the auxiliary bracket group 3, and then hold the cart handle 23 to tilt the entire cart 100 backward and downward to make the auxiliary wheel 42 land (as shown in FIG. 3 Shown). The overall cart 100 moves through three wheels (ie, the main wheel 41 and the auxiliary wheel 42), which can carry the high-pressure gas container stably, safely and effortlessly. When encountering a slope, since the high-pressure gas container is very heavy, two users are generally required to hold the cart handle 23 to pull, and hold the base handle 12 to push. In order to prevent the user from pinching his hand due to inadvertent manipulation (for example, the carrying base 1 snaps back to the ground) while holding the base handle 12, the safety mechanism 6 can be operated so that the safety rod 62 is in the lowered position (see FIG. 2 ). When the user holds the base handle 12 carrying the base 1, the height space formed by the protruding safety rod 62 and the ground can provide a safety function to avoid finger crushing. In addition, in order to facilitate moving on the slope, generally speaking, the auxiliary bracket group 3 is folded so that the handle 23 of the cart can be pressed down, and the overall center of gravity is close to the slope, which is convenient to move and avoid falling. After reaching the work place, the support bracket group 2 is upright, the safety mechanism 6 is operated to put the safety rod 62 in the retracted position, the bearing base 1 is grounded, and the auxiliary bracket group 3 is determined to be in the collapsed state, and then the high pressure The gas container moves out of the space formed by the bearing base 1 and the bearing bracket group 2 and reaches a predetermined position.

綜上所述，本新型用於運送高壓氣體容器的推車的實施例，可供使用者在搬運過程中方便地施力，並且能夠安全穩定地移動，又能避免使用者操作不當夾傷手。因此，確實能達成本新型之目的。In summary, the present embodiment of the cart for transporting high-pressure gas containers allows users to conveniently apply force during the transportation process, and can move safely and steadily, and can prevent the user from improperly gripping the hands . Therefore, it can indeed achieve the purpose of new cost.

惟以上所述者，僅為本新型之實施例而已，當不能以此限定本新型實施之範圍，凡是依本新型申請專利範圍及專利說明書內容所作之簡單的等效變化與修飾，皆仍屬本新型專利涵蓋之範圍內。However, the above are only examples of the new model. When the scope of the new model cannot be limited by this, any simple equivalent changes and modifications made according to the patent application scope and patent specification content of the new model are still regarded as Within the scope of this new patent.

100:推車 1:承載底座 11:本體 111:前緣 112:後緣 12:底座把手 2:承載支架組 201:下部 202:上部 21:縱向支架 22:橫向支架 23:推車把手 24:第一結構桿 241:上段 242:下段 25:第二結構桿 3:輔助支架組 31:第一架體 311:第一端 312:第二端 32:第二架體 321:第一端 322:第二端 323:主體部 324:限位部 33:第三架體 331:第一端 332:第二端 333:主體部 334:限位部 34:U型把手 40:輪軸 41:主輪 42:輔助輪 5:定位機構 51:第一定位件 511:收容部 512:開口 52:第二定位件 521:端部 53:第三定位件 531:收容部 532:開口 54:第四定位件 541:端部 6:安全機構 60:固定套筒 61:限位套筒 611:上緣 612:下緣 613:穿槽 62:安全桿 621:底端 63:限位銷100: trolley 1: bearing base 11: Ontology 111: leading edge 112: trailing edge 12: Base handle 2: bearing bracket group 201: lower 202: upper 21: Vertical bracket 22: Horizontal bracket 23: Cart handle 24: The first structural rod 241: Upper section 242: Lower section 25: Second structural rod 3: auxiliary bracket group 31: The first body 311: the first end 312: Second end 32: second frame 321: the first end 322: second end 323: Main body 324: Limit part 33: third body 331: first end 332: Second end 333: Main body 334: Limit part 34: U-shaped handle 40: axle 41: Main round 42: auxiliary wheel 5: Positioning mechanism 51: First positioning piece 511: Containment Department 512: opening 52: Second positioning piece 521: end 53: Third positioning piece 531: Containment Department 532: opening 54: Fourth positioning piece 541: end 6: Security agency 60: fixed sleeve 61: Limit sleeve 611: Upper edge 612: Lower edge 613: Groove 62: Safety bar 621: bottom 63: limit pin

本新型之其他的特徵及功效，將於參照圖式的實施方式中清楚地呈現，其中： 圖1是本新型的一個實施例的前視圖，其中，一輔助支架組處於收合狀態且兩個安全桿上縮； 圖2是該實施例的一立體圖，其中，該輔助支架組處於展開狀態且該二安全桿下放； 圖3及圖4是該實施例的不同視角立體圖，圖5及圖6是該實施例的側視圖，共同說明該輔助支架組從展開狀態改變到收合狀態；及 圖7是該實施例的局部放大圖，用來說明安全機構的部分元件。 Other features and functions of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: FIG. 1 is a front view of an embodiment of the present invention, in which an auxiliary bracket group is in a collapsed state and two safety rods are retracted; FIG. 2 is a perspective view of the embodiment, wherein the auxiliary bracket group is in an expanded state and the two safety bars are lowered; Figures 3 and 4 are different perspective views of this embodiment, and Figures 5 and 6 are side views of this embodiment, which together illustrate the change of the auxiliary stent group from the deployed state to the collapsed state; and FIG. 7 is a partially enlarged view of the embodiment, and is used to explain some elements of the safety mechanism.

100:推車 100: trolley

1:承載底座 1: bearing base

11:本體 11: Ontology

111:前緣 111: leading edge

12:底座把手 12: Base handle

2:承載支架組 2: bearing bracket group

21:縱向支架 21: Vertical bracket

22:橫向支架 22: Horizontal bracket

23:推車把手 23: Cart handle

24:第一結構桿 24: The first structural rod

241:上段 241: Upper section

242:下段 242: Lower section

25:第二結構桿 25: Second structural rod

3:輔助支架組 3: auxiliary bracket group

31:第一架體 31: The first body

311:第一端 311: the first end

312:第二端 312: Second end

32:第二架體 32: second frame

33:第三架體 33: third body

34:U型把手 34: U-shaped handle

40:輪軸 40: axle

41:主輪 41: Main round

42:輔助輪 42: auxiliary wheel

5:定位機構 5: Positioning mechanism

6:安全機構 6: Security agency

60:固定套筒 60: fixed sleeve

61:限位套筒 61: Limit sleeve

62:安全桿 62: Safety bar

621:底端 621: bottom

63:限位銷 63: limit pin

Claims (12)

一種推車，包含： 一個承載底座，包括具有一前緣及遠離該前緣之一後緣的一本體，及連接於該本體之該前緣的一底座把手； 一個承載支架組，自該承載底座之該後緣處夾一角度延伸； 二個主輪，彼此相間隔地設置於該承載底座之該後緣處； 一個輔助支架組，設置於該承載支架組的後方，可在一展開狀態及一收合狀態間變換；以及 至少一輔助輪，設置於該輔助支架組底部； 當該輔助支架組在該展開狀態，該輔助輪與該二主輪係可轉動地共同支撐於地面上； 當該輔助支架組在該收合狀態，該輔助支架組貼靠該承載支架組。 A cart, including: A carrying base, including a body having a front edge and a rear edge away from the front edge, and a base handle connected to the front edge of the body; A load-bearing bracket group extending at an angle from the rear edge of the load-bearing base; Two main wheels are arranged at the rear edge of the bearing base at intervals; An auxiliary bracket group, which is arranged behind the supporting bracket group, and can be switched between an expanded state and a collapsed state; and At least one auxiliary wheel is arranged at the bottom of the auxiliary bracket group; When the auxiliary bracket group is in the deployed state, the auxiliary wheel and the two main wheel trains are rotatably supported on the ground; When the auxiliary bracket group is in the collapsed state, the auxiliary bracket group abuts the bearing bracket group. 如請求項1所述的推車，其中，該承載支架組具有靠近該承載底座的一下部及連接於該下部之上方的一上部；該輔助支架組包括： 一個第一架體，具有一與該承載支架組的該上部樞接的第一端，及一遠離該第一端的第二端； 一個第二架體，具有一與該承載支架組的下部樞接的第一端，及遠離該第一端的第二端；及 一個第三架體，具有與該第一架體樞接於鄰近其第二端處的一第一端，及與該第二架體樞接於鄰近其第二端處的一第二端； 當該輔助支架組在該展開狀態，該第一架體的第二端向後樞擺遠離該承載支架組，且該第二架體與該第三架體張開的角度略微大於180°。 The cart according to claim 1, wherein the carrier bracket group has a lower part close to the carrier base and an upper part connected above the lower part; the auxiliary bracket group includes: A first frame body having a first end pivotally connected to the upper part of the supporting bracket group, and a second end away from the first end; A second frame body having a first end pivotally connected to the lower portion of the supporting bracket group, and a second end away from the first end; and A third frame body having a first end pivotally connected to the first frame body adjacent to the second end thereof, and a second end pivotally connected to the second frame body adjacent to the second end thereof; When the auxiliary bracket group is in the unfolded state, the second end of the first rack body pivots away from the load-bearing bracket group backward, and the opening angle of the second rack body and the third rack body is slightly greater than 180°. 如請求項2所述的推車，更包含用於使該輔助支架組定位在該收合狀態的一個定位機構，該定位機構包括： 一個第一定位件，設置在該承載支架組的上部及該第二架體鄰近第二端處其中之一，具有一收容部以及一開口； 一個第二定位件，設置在該承載支架組的上部及該第二架體鄰近第二端處其中另一，具有可通過該第一定位件的開口且收容入其收容部內的一端部； 該第一定位件與第二定位件相向設置，當該輔助支架組由該展開狀態操作，在變換至該收合狀態之前，該第二定位件會先卡入該第一定位件。 The cart according to claim 2, further comprising a positioning mechanism for positioning the auxiliary bracket group in the collapsed state, the positioning mechanism including: A first positioning member is provided on one of the upper part of the supporting bracket group and the second frame body adjacent to the second end, and has a receiving portion and an opening; A second positioning member is provided on the upper portion of the supporting bracket group and the other of the second frame body adjacent to the second end, and has an end portion that can pass through the opening of the first positioning member and be received in the receiving portion thereof; The first positioning member is disposed opposite to the second positioning member. When the auxiliary bracket group is operated from the deployed state, the second positioning member will first snap into the first positioning member before changing to the collapsed state. 如請求項3所述的推車，其中，該定位機構的該第一定位件係由一長型片體呈U型彎折而成。The cart according to claim 3, wherein the first positioning member of the positioning mechanism is formed by bending a long piece in a U shape. 如請求項3所述的推車，其中，該定位機構還包括： 一個第三定位件，設置在該承載支架組的下部及該第一架體鄰近第二端處其中之一，係由一長型片體呈U型彎折而成，具有一收容部以及一開口； 一個第四定位件，設置在該承載支架組的下部及該第一架體鄰近第二端處其中另一，具有可通過該第三定位件的開口且收容入其收容部內的一端部； 該第三定位件與第四定位件相向設置，當該輔助支架組由該展開狀態變換至該收合狀態時，該第四定位件卡入該第三定位件。 The cart according to claim 3, wherein the positioning mechanism further includes: A third positioning member, which is arranged at the lower part of the supporting bracket group and one of the first frame body adjacent to the second end, is formed by a long piece bent in a U shape, and has a receiving portion and a Opening A fourth positioning member, disposed at the lower part of the supporting bracket group and the other of the first frame body adjacent to the second end, having an end that can pass through the opening of the third positioning member and be received in the receiving portion thereof; The third positioning member is disposed opposite to the fourth positioning member. When the auxiliary bracket group is changed from the expanded state to the collapsed state, the fourth positioning member snaps into the third positioning member. 如請求項3所述的推車，其中，定義該輔助支架組的第一架體與該承載支架組的樞接點為Q點，該第二架體與該第三架體的樞接點為P點，該第三架體與該第一架體的樞接點為R點；在該第二定位件與該第一定位件卡合時，Q點至P點的直線距離略大於Q點至R點的距離減掉R點到P點的距離。The cart according to claim 3, wherein the pivot point of the first frame body of the auxiliary bracket group and the load-bearing bracket group is defined as point Q, and the pivot point of the second frame body and the third frame body is defined Is point P, the pivot point of the third frame and the first frame is point R; when the second positioning element is engaged with the first positioning element, the linear distance from point Q to point P is slightly greater than Q The distance from point R to point R minus the distance from point R to point P. 如請求項2所述的推車，其中，該輔助支架組的該第一架體呈V型，且該輔助支架組還包括具有一個U型把手，該U型把手具有二個末端且共同固定在該第一架體的鄰近該第二端處。The cart according to claim 2, wherein the first frame of the auxiliary bracket group is V-shaped, and the auxiliary bracket group further includes a U-shaped handle having two ends and fixed together Near the second end of the first frame. 如請求項2所述的推車，其中，該輔助支架組的第二架體還具有長型的一主體部，及自該主體部的一長側緣同體成型且相互垂直的一限位部； 該第三架體還具有長型的一主體部，及自該主體部的一長側緣同體成型且相互垂直的一限位部，該第三架體係以其主體部樞接於該第二架體的主體部，且定義兩者的樞接點為P點，該P點離該第二架體的第二端尚有一段距離； 當該輔助支架組在該展開狀態，該第二架體在該P點至其第二端之間的限位部交疊於該第三架體的限位部之上，並使該第二與第三架體在夾角略微大於180°時達到限位。 The stroller according to claim 2, wherein the second frame of the auxiliary bracket group further has a long body portion, and a limit body formed integrally from the long side edge of the body portion and perpendicular to each other unit; The third frame body also has an elongated main body portion, and a limiting portion that is formed in one body and perpendicular to each other from a long side edge of the main body portion, and the third frame system is pivotally connected to the first body portion with its main body portion The main part of the two frames, and the pivot point of the two is defined as point P, which is still a distance away from the second end of the second frame; When the auxiliary bracket group is in the deployed state, the limit portion of the second frame body from the point P to the second end overlaps the limit portion of the third frame body, and the second When the angle with the third frame is slightly larger than 180°, it reaches the limit. 如請求項1所述的推車，更包含至少一個安全機構，其包括； 一限位套筒，固定設置於該承載支架組，該限位套筒具有一上緣及一下緣，且橫截面呈C型而具有一穿槽； 一安全桿，可活動地穿設於該限位套筒內，具有一鄰近該承載底座的底端；及 一限位銷，自該安全桿側向延伸，其連接該安全桿的一段，具有小於該穿槽的寬度的直徑； 當該限位銷沿該穿槽移動到該限位套筒上方、旋轉離開該穿槽並抵達該限位套筒上緣，此時該安全桿處於不觸地的一上縮位置； 當該限位銷沿該穿槽移動到該限位套筒下方、旋轉離開該穿槽並抵達該限位套筒下緣，此時該安全桿處於其底端向下伸出於該承載底座而觸地的一下放位置。 The cart according to claim 1, further comprising at least one safety mechanism, including; A limit sleeve is fixedly arranged on the bearing bracket group, the limit sleeve has an upper edge and a lower edge, and the cross section is C-shaped and has a through slot; A safety rod movably penetrated in the limit sleeve and having a bottom end adjacent to the bearing base; and A limit pin extending laterally from the safety rod, and a section connecting the safety rod has a diameter smaller than the width of the slot; When the limit pin moves along the slot to above the limit sleeve, rotates away from the slot and reaches the upper edge of the limit sleeve, the safety rod is in a retracted position that does not touch the ground; When the limit pin moves along the through slot under the limit sleeve, rotates away from the through slot and reaches the lower edge of the limit sleeve, the safety bar at its bottom end extends downward from the bearing base And put it on the ground. 如請求項9所述的推車，其中，該安全機構數量為二，且該二安全桿的設置方位是一左一右地由該承載支架組朝下及前方延伸至該承載底座兩側接近其前緣處。The cart according to claim 9, wherein the number of the safety mechanisms is two, and the orientation of the two safety rods extends from the bearing bracket group downward and forward to the sides of the bearing base At its leading edge. 如請求項1所述的推車，其中，該承載支架組包括縱向延伸且間隔排列的多個縱向支架，以及彎弧狀延伸、彼此上下間隔排列且與該等縱向支架垂直交會固定的多個橫向支架。The cart according to claim 1, wherein the load-bearing bracket group includes a plurality of longitudinal brackets extending longitudinally and spaced apart, and a plurality of curved brackets extending vertically spaced apart from each other and intersecting the longitudinal brackets fixedly Horizontal bracket. 如請求項11所述的推車，其中，該承載支架組進一步包括左右間隔排列地固定連接於該等縱向支架後方的二個第一結構桿，及橫向連接該二第一結構桿的一個第二結構桿，各該第一結構桿概呈夾鈍角的L型而具有一上段及較該上段短的一下段； 其中，該二主輪透過一輪軸相互串接，且該輪軸橫向固定設置於該二第一結構桿的該下段之接近該鈍角處。 The cart according to claim 11, wherein the load-bearing bracket group further includes two first structural rods fixedly connected to the rear of the longitudinal brackets at left and right intervals, and a first structural rod laterally connected to the two first structural rods Two structural rods, each of which is roughly L-shaped with an obtuse angle and has an upper section and a lower section shorter than the upper section; Wherein, the two main wheels are serially connected to each other through a wheel shaft, and the wheel shaft is fixed laterally at the obtuse angle of the lower section of the two first structural rods.

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