Auxiliary supporting leg of trolley

Abstract

The utility model provides an auxiliary supporting leg of a trolley. The auxiliary supporting leg comprises a lifting assembly, an auxiliary supporting assembly and a walking assembly. The auxiliary supporting assembly comprises two supporting columns which are symmetrically arranged; the two supporting columns are rotationally connected to the lower end of the lifting assembly. Electromagnetic devices are arranged on the corresponding inner sides of the two supporting columns; the walking assembly comprises two walking units which are symmetrically arranged; the walking unit comprises a wheel carrier, a rubber half wheel and a connecting rope; the wheel carrier is rotationally connected to the lower end of the supporting column through a hinge, the upper end of the hinge is fixed to the outer side of the bottom of the supporting column, and the lower end of the hinge is fixed to the outer side of the wheel carrier. One end of the connecting rope is arranged on the lifting assembly in a length-adjustable manner, and the other end is fixed at the lower end of the wheel carrier; electromagnetic devices are arranged on the inner sides of the rubber half wheels, and the two walking units are magnetically attracted and fixed to form a walking assembly through the electromagnetic devices. By means of the arrangement, it can be guaranteed that the framework of the trolley can be well supported and does not shake during tunnel construction, the construction stability is guaranteed, and the trolley can walk when construction is finished.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel jumbo, in particular to an auxiliary support leg for a jumbo. Background Art

[0002] At present, in order to increase the strength during use, most of the jumbos used in tunnel construction adopt a structural form with a skeleton as the main support body. The jumbo is connected to the guide rail through the traveling devices on both sides of the bottom of the skeleton for the jumbo to travel. However, when the jumbo is under construction or traveling, the support and fixation performance of the skeleton is poor and the traveling devices are limited, which easily causes the jumbo to shake, thus affecting the operation of the jumbo.

[0003] Therefore, an improved technical solution is needed to address the above deficiencies in the prior art. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an auxiliary support leg for a jumbo to solve or alleviate the problems existing in the above prior art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] The utility model provides an auxiliary support leg for a jumbo, which is characterized in that it includes a lifting assembly, an auxiliary support assembly and a traveling assembly; the auxiliary support assembly includes two symmetrically arranged support columns; both of the two support columns are rotatably connected to the lower end of the lifting assembly; electromagnetic devices are arranged on the inner sides corresponding to the two support columns; the traveling assembly includes two symmetrically arranged traveling units; the traveling unit includes a wheel frame, a rubber half-wheel and a connecting rope; the wheel frame is rotatably connected to the lower end of the support column through a hinge, the upper end of the hinge is fixed to the outer side of the bottom of the support column, and the lower end of the hinge is fixed to the outer side of the wheel frame; one end of the connecting rope is arranged on the lifting assembly with adjustable length, and the other end is fixed to the lower end of the wheel frame; an electromagnetic device is arranged on the inner side of the rubber half-wheel, and the two traveling units are magnetically fixed into a traveling assembly through the electromagnetic device.

[0007] Preferably, a plurality of the auxiliary support legs are evenly arranged between two traveling devices along the traveling direction of the jumbo.

[0008] Preferably, the lifting assembly is a hydraulically actuated cylinder that can be telescoped up and down.

[0009] Preferably, the hinge is fixedly connected to the support column and the wheel frame through screws.

[0010] Preferably, the wheel frame includes an upper support plate that abuts against the lower end surface of the support column.

[0011] Preferably, the upper support plate of the wheel frame is an iron plate, and electromagnetic devices are provided on the lower end surfaces of the two support columns.

[0012] Preferably, the electromagnetic devices are fixedly arranged at the central positions on the inner sides and lower end surfaces of the support columns.

[0013] Preferably, the connecting rope of the walking assembly is an iron chain.

[0014] Preferably, the electromagnetic devices inside the two rubber half - wheels of the walking assembly are annular.

[0015] Compared with the closest prior art, the technical solution of the embodiment of the present utility model has the following beneficial effects:

[0016] By rotating the angle of the support columns of the present utility model, the auxiliary support assembly is used to fixedly support the trolley frame, avoiding contact between the auxiliary support assembly and the trolley guide rail when supporting and fixing the trolley frame. The height of the auxiliary support assembly can also be adjusted by telescoping the lifting assembly, enabling the trolley to adapt to various construction sites; at the end of the construction, the support columns can be rotated again, and the magnetic attraction fixation between the walking units is combined to form a walking assembly, which is used to assist the trolley in walking on the guide rail, improving the stability of the trolley when walking on the guide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The attached drawings forming a part of this specification are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation to the present utility model. Among them:

[0018] Figure 1 is an arrangement diagram of the auxiliary supporting feet of the trolley for walking of the present utility model.

[0019] Figure 2 is an arrangement diagram of the auxiliary supporting feet of the trolley for support of the present utility model.

[0020] Figure 3 is a walking diagram of the auxiliary supporting feet of the trolley of the present utility model.

[0021] Figure 4 is a support diagram of the auxiliary supporting feet of the trolley of the present utility model.

[0022] Figure 5 is a three - dimensional structure diagram of the support column.

[0023] Figure 6 is an inner - side view of the rubber half - wheel.

[0024] Description of the reference numerals: 1, traveling device; 2, lifting assembly; 3, rotating shaft; 4, support column; 5, hinge; 6, connecting rope; 7, wheel carrier; 71, upper support plate; 8, rubber half-wheel; 9, electromagnetic device. Detailed implementation mode

[0025] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. Each example is provided by way of explanation of the present application rather than limiting the present application. In fact, those skilled in the art will appreciate that modifications and variations can be made to the present application without departing from the scope or spirit thereof. For example, features shown or described as part of one embodiment can be used in another embodiment to yield yet another embodiment. Accordingly, it is intended that the present application cover such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0026] In the following description, the terms "first / second / third" are merely used to distinguish similar objects and do not represent a specific order of the objects. It can be understood that "first / second / third" can be interchanged with a specific order or sequence when permitted, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this disclosure belongs. The terms used herein are only for the purpose of describing the embodiments of this disclosure and are not intended to limit this disclosure.

[0028] In the description of the present application, the orientation or positional relationships indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application rather than requiring the present application to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. The terms "connected", "connected to", and "disposed" used in the present application should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be directly connected or indirectly connected through an intermediate component; it can be a wired connection, a radio connection, or a wireless communication signal connection. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] The present utility model will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0030] Refer to Figure 2As shown, a plurality of trolley auxiliary supporting feet are evenly arranged on the skeleton along the traveling direction of the trolley. When the trolley arrives at a designated location for construction, the height of the trolley auxiliary supporting feet is adjusted by the lifting assembly 2. At the same time, the electromagnetic device 9 is powered off, so that the inner sides of the two supporting columns 4 of the auxiliary supporting assembly are disconnected, the bottom is disconnected from the traveling assembly, and the electromagnetic connection between the two rubber half-wheels 8 of the traveling assembly is also disconnected. Immediately afterwards, the two supporting columns 4 rotate to a certain angle under the action of the rotating shaft 3, and the connecting rope 6 pulls the lower end of the wheel frame 7 upwards until the upper supporting plate 71 of the wheel frame 7 is at a certain height from the ground when the supporting column 4 touches the ground and provides stable support. Thus, the auxiliary supporting feet achieve the effect of stably supporting the trolley skeleton.

[0031] Referring to Figure 4 、 Figure 5 、 Figure 6 As shown, the lifting assembly 2 is hydraulically controlled to lift and lower. The supporting columns 4 of the auxiliary supporting assembly can be rotated through the rotating shaft 3 to adjust different angles of rotation of the two supporting columns 4 to cope with ground conditions in different situations, so as to ensure the overall stability of the skeleton of the trolley during operation, similar to the stable support design of an arch bridge; the electromagnetic device 9 is installed in the central part of the inner sides and the bottom of the two supporting columns 4, which can ensure better mutual connection and stability between the two supporting columns 4 during electromagnetic connection, and can also better ensure the stable connection between the two supporting columns 4 and the wheel frame 7. The electromagnetic devices 9 installed on the two rubber half-wheels 8 are in the shape of two arcs and are also installed in the center of the half-wheels. Since the wheel frame 7 is made of metal, in order to prevent it from being affected by the electromagnetic field of the electromagnetic device 9, installing it in the center of the rubber half-wheels 8 can use rubber to isolate the electromagnetic device 9. When the two rubber half-wheels 8 are connected and running on the guide rail, the magnetic force generated will affect the trolley's movement, and it can also prevent the bearings connecting the two rubber half-wheels 8 from being affected. The electromagnetic device 9 is controlled by a DC switch and can be enabled at any time, which increases the convenience for the auxiliary supporting feet; the connecting rope 6 is made of an iron chain, which can better withstand the tensile force when pulling and hanging the traveling assembly, so as to ensure the stable support of the auxiliary supporting assembly is not affected by external factors; the upper end of the hinge 5 and the hinge 5 rotating shaft used to connect the auxiliary supporting assembly and the traveling assembly are all connected above the outer bottom surface of the support shaft, ensuring that the ground does not rub against the hinge 5 when the supporting column 4 is providing support, so as not to affect the stability and supporting effect of the auxiliary supporting assembly on the trolley skeleton.

[0032] Referring to Figure 1 and Figure 3 、 Figure 5 、 Figure 6As shown in the figure, after the trolley construction is completed, the trolley lifting component 2 drives the auxiliary support component to rise. The two support columns 4 are rotated inwardly and closely attached under the rotation of the rotating shaft 3. At the same time, the connecting rope 6 is lowered to align the walking component. At this time, the electromagnetic device 9 is energized, and the two support columns 4 are electromagnetically connected and attracted to each other through the electromagnetic device 9 at the center of the bottom. The lower cross-sections of the two support columns 4 are electromagnetically connected to the upper support plates 71 on the two wheel frames 7. After the connection, the upper support plate 71 plays a role in supporting the two support columns 4, ensuring that when the two rubber half-wheels 8 are electromagnetically connected and walking on the guide rail, they share the force received by the hinge 5, ensuring that the auxiliary support feet of the trolley follow the trolley walking device 1 to walk together under the drive of its walking component; the two rubber half-wheels 8 adopt a structure with a higher outer part and a lower inner part to stably walk on the trolley guide rail, avoiding the detachment of the auxiliary support feet when following the walking device 1; the auxiliary support feet play a role in stably supporting the trolley skeleton when walking together with the walking device 1, ensuring the stability of the trolley skeleton without shaking when the trolley is walking.

[0033] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A trolley auxiliary support leg, characterized in that: It includes a lifting component, an auxiliary support component, and a walking component; the auxiliary support component includes two symmetrically arranged support columns; both of the two support columns are rotatably connected to the lower end of the lifting component; electromagnetic devices are provided on the inner sides of the two corresponding support columns; the walking component includes two symmetrically arranged walking units; each walking unit includes a wheel frame, a rubber half-wheel, and a connecting rope; the wheel frame is rotatably connected to the lower end of the support column through a hinge, the upper end of the hinge is fixed to the outer side of the bottom of the support column, and the lower end of the hinge is fixed to the outer side of the wheel frame; one end of the connecting rope is arranged on the lifting component with adjustable length, and the other end is fixed to the lower end of the wheel frame; an electromagnetic device is provided inside the rubber half-wheel, and the two walking units are magnetically fixed into a walking component through the electromagnetic device.

2. The auxiliary support leg of a trolley according to claim 1, characterized in that: A plurality of the auxiliary feet are evenly arranged between the two walking devices along the walking direction of the trolley.

3. The auxiliary support leg of a trolley according to claim 1, characterized in that: The lifting component is a hydraulically cylinder that can be telescopically extended and retracted.

4. An auxiliary support leg for a trolley according to claim 1, characterized in that: The hinge is fixedly connected to the support column and the wheel frame by screws.

5. The auxiliary support leg of a trolley according to claim 1, characterized in that: The wheel frame includes an upper support plate, and the upper support plate abuts against the lower end surface of the support column.

6. The auxiliary supporting leg of a trolley according to claim 1, characterized in that: The upper support plate of the wheel frame is an iron plate, and electromagnetic devices are provided on the lower end surfaces of the two support columns.

7. The auxiliary support leg of a trolley according to claim 6, characterized in that: The electromagnetic device is fixedly arranged at the central position of the inner side and the lower end surface of the support column.

8. The auxiliary support leg of a trolley according to claim 1, characterized in that: The connecting rope of the walking component is an iron chain.

9. The auxiliary supporting feet of a trolley according to claim 1, characterized in that: The electromagnetic devices inside the two rubber half-wheels of the walking component are annular.

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