Angle-adjustable stair type pedal device and hydraulic support

Abstract

The utility model relates to the technical field of hydraulic supports, in particular to an angle-adjustable stair type pedal device and a hydraulic support, and the angle-adjustable stair type pedal device comprises a rectangular main body plate; the pedals are uniformly distributed along the long edge direction of the main body plate, one ends of the pedals are hinged with the main body plate, and the other ends are connected with the main body plate through supporting rods; the supporting rod is used for adjusting the angle of the pedal and plays a role in fixing and supporting. The angle of the pedal is adjusted through the supporting rod, installation and angle adjustment are convenient, the requirement for machining difficulty is not high, and meanwhile the design space of a support base is not occupied. When the working environment of the support tends to be horizontal, the supporting rods can be detached, and horizontal and large-dip-angle switching use is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydraulic support, in particular to an angle-adjustable stair type footboard device and a hydraulic support. BACKGROUND

[0002] The hydraulic support is one of the "three machines" in coal mining, and is an important guarantee for ensuring coal mining and protecting the safety of underground workers. The hydraulic support needs to be passed through by workers, and thus needs to have a good walking environment. The hydraulic support footboard is a device arranged on the hydraulic support to facilitate personnel passage and ensure safety during personnel passage.

[0003] The geological conditions of coal mines are different, some working faces tend to be horizontal, and the footboard can be directly used with an anti-skid flat plate, but some working faces have an inclination angle, the entire working face length is greater than or equal to 100 m, the inclination angle is 0-15°, which belongs to a near-horizontal working face, the inclination angle is 15-30°, which belongs to a large-inclination working face, and the inclination angle is greater than 30°, which belongs to a steeply inclined working face.

[0004] However, the design angle of the existing footboard cannot be adjusted at any time, which causes the footboard to tilt on the working face with an inclination angle, is not conducive to personnel work and walking on the working face, and easily causes safety accidents such as personnel foot twisting. CONTENT OF THE INVENTION

[0005] The present application aims to at least solve one of the technical problems that the design angle of the existing footboard cannot be adjusted at any time, which causes the footboard to tilt on the working face with an inclination angle, is not conducive to personnel work and walking on the working face, and easily causes safety accidents such as personnel foot twisting.

[0006] Therefore, the present application provides an angle-adjustable stair type footboard device, which adjusts the angle of the footboard through a support rod, is convenient to install and adjust the angle, has low processing difficulty, and does not occupy the design space of the support base; when the working environment of the support tends to be horizontal, the support rod can be removed to realize horizontal and large-inclination switching use.

[0007] The present application also provides a hydraulic support comprising the above-mentioned angle-adjustable stair type footboard device.

[0008] According to the angle-adjustable stair type footboard device provided by the first aspect of the present application, the main plate is a rectangle, the footboards are uniformly arranged along the long side direction of the main plate, one end of each footboard is hinged to the main plate, and the other end is connected to the main plate through a support rod; and the support rod is used to adjust the angle of the footboard and plays a fixing and supporting role.

[0009] Optionally, the two sides of the long side of the main plate are provided with fixing grooves; one end of each footboard is hinged to the fixing groove, and the other end is connected to the fixing groove through a support rod.

[0010] Optionally, the support rod is detachably connected with the fixing groove through the first connecting piece.

[0011] Optionally, a plurality of equidistant adjusting holes are arranged on the fixing groove, and the adjusting holes are used to cooperate with the first connecting piece to adjust the angle of the support rod.

[0012] Optionally, the first connecting piece is a bolt.

[0013] Optionally, the support rod is detachably connected with the pedal through the second connecting piece.

[0014] Optionally, the pedal is provided with an anti-skid strip.

[0015] Optionally, the main plate is provided with a supporting leg.

[0016] Optionally, the main plate is provided with a connecting lug plate.

[0017] The second aspect embodiment of the application provides a hydraulic support provided with the adjustable-angle stair type foot pedal device, and the adjustable-angle stair type foot pedal device has the above technical effects, so that the hydraulic support provided with the adjustable-angle stair type foot pedal device also has corresponding technical effects.

[0018] The above technical solution has at least the following advantages or beneficial effects:

[0019] For the adjustable-angle stair type foot pedal device and the hydraulic support provided by the application, the adjustable-angle stair type foot pedal device comprises: a main plate, which is rectangular; a pedal, which is uniformly arranged along the long side direction of the main plate, one end of the pedal is hingedly connected with the main plate, and the other end is connected with the main plate through a support rod; and the support rod is used to adjust the angle of the pedal and plays a fixing and supporting role. The angle of the pedal is adjusted through the support rod, which is convenient to install and adjust the angle, has low processing difficulty, and does not occupy the design space of the support base; when the working environment of the support tends to be horizontal, the support rod can be removed to realize horizontal and large-angle switching use. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the application, the drawings needed in the embodiments will be briefly introduced below. Obviously, other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0021] Figure 1 Fig. 1 shows the structure schematic diagram of the adjustable-angle stair type foot pedal device provided by the application;

[0022] Figure 2A structure diagram of a stair type footboard device provided by an embodiment of the application is shown.

[0023] Explanation of reference signs:

[0024] 1, main plate, 11, fixing groove, 12, adjusting hole, 13, supporting leg, 14, connecting lug plate, 2, footboard, 21, supporting rod, 22, first connecting piece, 23, second connecting piece, 24, anti-skid strip, 3, support main body. DETAILED DESCRIPTION

[0025] In order to better explain the application and facilitate understanding, the application is described in detail below through specific embodiments in combination with the drawings. The orientation terms such as "upper", "lower", "inner" and "outer" mentioned in this text are referred to the orientation of the drawings. The position of the footboard 2 relative to the main plate 1 is defined as "upper"; the position of the supporting rod 21 relative to the fixing groove 11 is defined as "inner". Figure 1

[0026] As described above, the hydraulic support is a supporting structure arranged in a mine tunnel and controlled and operated through a hydraulic system. It utilizes the principle of hydraulic pressure to provide power through a hydraulic pump station, so that the top beam of the support is in close contact with the tunnel roof, thereby achieving support and protection of the tunnel. In the process of coal mining, as the working face advances, the roof of the mine tunnel may be affected by the mine pressure and sink or collapse. At this time, the hydraulic support can play its role in supporting and protecting to ensure the stability and safety of the tunnel.

[0027] As the working face of the mine extends, the inclination of the environment where the hydraulic support is located often changes. However, the existing footboard design angle cannot be adjusted at any time, which causes the footboard to tilt on the working face with inclination, which is not conducive to personnel working and walking on it, and is prone to cause safety accidents such as foot twisting.

[0028] In order to at least solve one of the technical problems existing in the prior art or related art, the application provides a stair type footboard device with adjustable angle and a hydraulic support. The stair type footboard device with adjustable angle comprises: a main plate, which is rectangular; a footboard, which is uniformly arranged along the long side direction of the main plate, one end of the footboard being hingedly connected to the main plate and the other end being connected to the main plate through a supporting rod; and the supporting rod being used for adjusting the angle of the footboard and playing a fixing and supporting role. The angle of the footboard is adjusted through the supporting rod, which is convenient to install and adjust the angle, has low requirement on processing difficulty, and does not occupy the design space of the support base. When the working environment of the support tends to be horizontal, the supporting rod can be removed to realize horizontal and large inclination switching use.

[0029] The stair type footboard device with adjustable angle according to some embodiments provided by the application is described below with reference to the drawings.​

[0030] See Figures 1 to 2 The first aspect of this application provides an adjustable angle stair-type foot pedal device, comprising: a main plate 1, which is rectangular; and pedals 2, which are evenly arranged along the long side of the main plate 1. One end of the pedals 2 is hinged to the main plate 1, and the other end is connected to the main plate 1 through a support rod 21. The support rod 21 is used to adjust the angle of the pedals 2 and to provide fixed support.

[0031] The main plate 1 is rectangular, providing a stable support surface and facilitating manufacturing and installation. The pedals 2, evenly arranged along the long side of the main plate 1, form a stair-like step, ensuring convenient access from any position on the main plate 1. When the working face is nearly horizontal, the support rod 21 can be removed, placing the pedals 2 in a nearly horizontal position. When the working face inclination angle is greater than 15°, the support rod 21 can be installed. By adjusting the length or position of the support rod 21, the hinge angle between the pedals 2 and the main plate 1 can be changed to adapt to the working face inclination angle, ensuring the pedals 2 remain nearly horizontal. This ensures that workers are always in a nearly horizontal position while working, improving safety and preventing accidents. Furthermore, the main plate 1 is very convenient to install underground, requiring fewer installers and less operating space. It is highly adaptable to the working environment of underground coal mines.

[0032] Furthermore, the number of pedals 2 is four. This design provides multiple pedaling points to increase stability and comfort, while also taking into account the efficiency of adjustment.

[0033] In one illustrative embodiment, the main body plate 1 has fixing grooves 11 on both sides of its long side; one end of the pedal 2 is hinged to the fixing groove 11, and the other end is connected to the fixing groove 11 through a support rod 21.

[0034] The fixing groove 11 provides a hinge point for one end of the pedal 2, so that the pedal 2 can be easily installed on the main body plate 1 and rotated within a certain range; at the same time, the fixing groove 11 also provides a mounting position for the support rod 21, which is used to firmly connect one end of the support rod 21 to the main body plate 1.

[0035] In one illustrative embodiment, the fixing groove 11 is provided with a plurality of equidistant adjustment holes 12, which are used to cooperate with the first connecting member 22 to adjust the angle of the support rod 21 to the pedal 2.

[0036] By selecting different adjustment holes 12 through the support rod 21 and fixing with the first connecting piece 22, the angle of the pedal 2 relative to the main body plate 1 can be changed, so by simply moving the support rod 21 into different adjustment holes 12, the angle of the pedal 2 can be easily adjusted to adapt to the working surface inclination, so that the pedal 2 is in a near-horizontal state. The design of multiple equidistant adjustment holes 12 allows the angle of the pedal 2 to be adjusted between multiple preset positions, thereby meeting different working conditions and operating requirements; and since the adjustment holes 12 are equidistantly distributed, the angle change of each pedal 2 during adjustment can be ensured to be consistent, improving the accuracy of adjustment; the adjustment process is simple and fast, only needs to move the support rod 21 of each pedal 2 to the same position adjustment hole 12 and fix it with the first connecting piece 22.

[0037] In an illustrative embodiment, the support rod 21 is detachably connected with the fixed groove 11 through the first connecting piece 22. The detachable connection design can easily detach or reinstall the support rod 21 from the fixed groove 11, so the position of the support rod 21 can be conveniently adjusted, thereby easily adjusting the angle and position of the pedal 2 to meet different working conditions and operating requirements, improving the flexibility and maintainability of the entire structure.

[0038] In an illustrative embodiment, the first connecting piece 22 is a bolt. The bolt is a commonly used fastener, which fixes one end of the support rod 21 to the fixed groove 11 by cooperating with a nut. Since the bolt and nut can be easily tightened or loosened, this connection method can easily detach or reinstall the support rod 21 from the fixed groove 11; and the bolt connection has high strength and durability, capable of bearing a large load.

[0039] In an illustrative embodiment, the support rod 21 is detachably connected with the pedal 2 through the second connecting piece 23. The second connecting piece 23 can be a bolt, which can easily detach or reinstall the support rod 21 from the pedal 2. When the working surface is near horizontal, the support rod 21 can be removed to make the pedal 2 in a near-horizontal state; when the working surface inclination is greater than 15°, the support rod 21 can be installed, and by adjusting the length or position of the support rod 21, the hinge angle of the pedal 2 relative to the main body plate 1 can be changed to adapt to the working surface inclination, so that the pedal 2 is in a near-horizontal state.

[0040] In an illustrative embodiment, the pedal 2 is provided with an anti-skid strip 24.

[0041] The anti-skid strips 24 are installed on the surface of the footboard 2, which can increase the friction of the surface of the footboard 2, prevent the operator from falling or losing balance due to slipping when stepping on. The anti-skid strips 24 can be made of materials with high friction coefficient, such as rubber, plastic, metal or materials with anti-skid texture, etc., which can provide good grip, and maintain stable friction even in wet or greasy environment.

[0042] In an illustrative embodiment, the main plate 1 is provided with a support leg 13. The support leg 13 is installed at the bottom of the main plate 1, which can provide stable support and ensure that the entire main plate 1 is placed stably on the support body 3 and bears the required load. The support leg 13 is designed to have an adjusting function, which can adjust the height or inclination of the support leg 13 according to the needs to adapt to different support bodies 3.

[0043] In an illustrative embodiment, the main plate 1 is provided with a connecting lug plate 14. The connecting lug plate 14 is used to fix the main plate 1 on the support body 3, which mainly provides a reliable connection point to ensure that the main plate 1 can be fixed firmly on the support body 3. As shown in Figure 2 , the bolt connection mode is adopted, which is convenient for installation, disassembly and maintenance of the device, and reduces the maintenance cost and time.

[0044] Based on the adjustable angle stair type footboard device provided in the above embodiments, the second aspect embodiment of the present application further provides a hydraulic support comprising the adjustable angle stair type footboard device provided in the above embodiments. Since the hydraulic support provided in the present embodiment has the adjustable angle stair type footboard device provided in any of the above embodiments, the hydraulic support has all the beneficial effects of the adjustable angle stair type footboard device provided in any of the above embodiments, which will not be repeated here.

[0045] In the description of the present application, it should be understood that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0046] In the present application, unless specifically defined otherwise, the terms "mounting", "connected", "connection", "fixed", and the like, should be construed broadly and can be understood as, for example, fixed connection, detachable connection, or integral; mechanical connection, or electrical connection; direct connection, or indirect connection via an intermediate medium; internal communication between two elements, or interaction between two elements. The specific meaning of the above terms in the present application can be understood by those skilled in the art according to the specific circumstances.

[0047] In the present application, unless specifically defined otherwise, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature is "above", "over" and "on" the second feature, which can be directly above or obliquely above the second feature, or simply means that the first feature is higher in horizontal height than the second feature. The first feature is "below", "under" and "under" the second feature, which can be directly below or obliquely below the second feature, or simply means that the first feature is lower in horizontal height than the second feature.

[0048] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "embodiment", "exemplary embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, different embodiments or examples described in the present application and the features of different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0049] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. An adjustable angle stair-step footrest device, characterized by, It comprises: a main plate (1) which is rectangular; a pedal plate (2) which is arranged uniformly along the long side of the main plate (1), one end of which is hinged to the main plate (1) and the other end of which is connected to the main plate (1) through a supporting rod (21); the supporting rod (21) is used for adjusting the angle of the pedal plate (2) and plays a role of fixed support.

2. An adjustable angle stair step footrest device as defined in claim 1, wherein, both sides of the long side of the main plate (1) are provided with a fixed slot (11); one end of the pedal plate (2) is hinged to the fixed slot (11) and the other end of the pedal plate (2) is connected to the fixed slot (11) through the supporting rod (21).

3. An adjustable angle stair-step footrest assembly as defined in claim 2 wherein, the supporting rod (21) is detachably connected to the fixed slot (11) through a first connecting piece (22).

4. An adjustable angle stair step footrest device as defined in claim 3 wherein, a plurality of equidistant adjusting holes (12) are arranged on the fixed slot (11) and are used for cooperating with the first connecting piece (22) to make the supporting rod (21) adjust the angle of the pedal plate (2).

5. An adjustable angle stair-step footrest assembly as recited in claim 4, wherein, the first connecting piece (22) is a bolt.

6. An angularly adjustable stair-step footrest device as defined in claim 1 wherein, the supporting rod (21) is detachably connected to the pedal plate (2) through a second connecting piece (23).

7. An adjustable angle stair-step footrest device as defined in claim 1 wherein, an anti-skid strip (24) is arranged on the pedal plate (2).

8. An angularly adjustable stair-step footrest device as defined in claim 1 wherein, a supporting leg (13) is arranged on the main plate (1).

9. An angularly adjustable stair-step footrest device as defined in claim 1 wherein, a connecting lug plate (14) is arranged on the main plate (1).

10. A hydraulic support, characterized in that, It comprises: an angle-adjustable stair type pedal plate device according to any one of claims 1-9.

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