Foldable pedal applied to end of working face of hydraulic support

Abstract

The utility model provides a foldable pedal applied to the end of a working face of a hydraulic support, which comprises a folding ladder, the folding ladder comprises a vertical support, a folding plate and a limiting piece, the folding plate is hinged with the vertical support, and the limiting piece is hinged with the folding plate. When the limiting piece is connected to the vertical support and the folding plate, a fixed angle is kept between the vertical support and the folding plate, and the folding plate becomes a relay step through the limiting piece, so that people can conveniently climb on the pedal. The folding ladder disclosed by the utility model adopts a rotatable structure formed by hinging the vertical bracket and the folding plates, is light in weight, small in size and high in structural strength, has two states of unfolding and folding storage, can be folded when not in use, does not occupy the space of a roadway, can move along with the hydraulic bracket base when the bracket is moved, and does not need to be manually carried; when the folding plate needs to be used, the folding plate can be kept in an unfolded state on the vertical support through the locking piece, and a person can conveniently take the folding plate as a relay step to climb on the pedal.

Description

Technical Field

[0001] This utility model relates to a foot pedal for a hydraulic support, specifically, to a foldable foot pedal applied to the working end of a hydraulic support. Background Technology

[0002] Hydraulic supports are key components of fully mechanized mining equipment, effectively supporting and controlling the roof of the coal face and ensuring a safe working space for workers and equipment operation. To guarantee the safety of hydraulic supports, the design of walkways and footboards is crucial. The design of hydraulic support walkways must meet the basic requirement of having anti-slip footboards underneath. Broadly speaking, hydraulic support footboards refer to anti-slip footboards on the walkways, and their design plays a vital role in ensuring the smooth passage of underground workers and equipment across the working face.

[0003] On the working face composed of hydraulic supports, the hydraulic supports are divided into end hydraulic supports, transition hydraulic supports, and intermediate hydraulic supports according to their position on the working face. The end hydraulic supports are located at the front and rear ends of the working face. The walkway is usually set on the working face in the form of footboards. The walkway on the hydraulic support is usually divided into two parts: the front walkway is mainly located at the front foot of the hydraulic support base, and the rear walkway is located between the connecting rod and the column. For small and medium-sized hydraulic supports, because the walkway is set low, personnel can directly climb onto the end hydraulic support as a footboard. However, for hydraulic supports with high extraction height, because the walkway is set high, it is difficult for personnel to directly climb onto the end hydraulic support as a footboard. Generally, ladders or steps are required.

[0004] For example, the Chinese utility model patent CN202223005469.3 discloses a foot pedal device for the head and tail of a fully mechanized mining face with a large mining height. It uses multi-layered pedals installed on the hydraulic support at the end to facilitate personnel to climb the foot pedals that serve as a pedestrian passage. However, such multi-layered pedals are large in size and occupy roadway space. In addition, when the hydraulic support is moved, the staff still need to manually move its position, which increases their workload and labor intensity.

[0005] In order to solve the above problems, people have been seeking an ideal technological solution. Utility Model Content

[0006] The purpose of this utility model is to address the shortcomings of the existing technology by providing a foldable footboard for use at the working end of a hydraulic support. The foldable ladder makes it easy for personnel to climb onto the footboard. The foldable ladder is lightweight, small in size, and has high structural strength. It does not occupy roadway space and can be folded up when not in use. When moving the support, it can be moved together with the hydraulic support base.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a folding ladder is included, the folding ladder includes a vertical support, a folding plate and a limiting member, the folding plate is hinged to the vertical support, and the limiting member is connected to the vertical support and the folding plate to maintain a fixed angle between the vertical support and the folding plate, and the folding plate becomes a relay step for facilitating people to climb onto the footboard through the limiting member.

[0008] Based on the above, the vertical support and the folding plate adopt a frame structure. When they rotate in opposite directions, one of them can be stored in the frame structure by the other. The left and right sides of the frame structure are respectively provided with a support side frame and a step side frame, and the support side frame and the step side frame are hinged together.

[0009] Based on the above, the limiting member is set as a diagonal plate, and the two ends of the diagonal plate are respectively connected to the side frame of the bracket and the side frame of the step.

[0010] Based on the above, the inclined plate is hinged to the side frame of the bracket, and the inclined plate is connected to the side frame of the step by a limiting pin.

[0011] Based on the above, the inclined plate and the step side frame, which are connected to the same side frame of the bracket, are respectively located on both sides of the side frame of the bracket to avoid the inclined plate interfering with the storage of the folding plate.

[0012] Based on the above, a first hinge shaft is provided between the side frame of the bracket and the side frame of the step, and a second hinge shaft is provided between the inclined plate and the side frame of the bracket. The first hinge shaft passes through the inner side of the side frame of the bracket, and the second hinge shaft passes through the outer side of the side frame of the bracket.

[0013] Based on the above, the folding ladder also includes a locking pin, which, when inserted through the side frame of the support and the side frame of the step, keeps the vertical support and the folding plate in place.

[0014] Based on the above, the foot pedal is provided with a pin hole for temporarily storing the pin.

[0015] Based on the above, the folding ladder is fixedly installed at the end of the foot pedal, and the bottom of the foot pedal is provided with an ear plate, which is used to connect to the hydraulic support base.

[0016] Based on the above, the foot pedal has upward bends on both sides, which are used to prevent pedestrians from stepping into empty spaces.

[0017] This utility model has substantial features and advancements compared to existing technologies. Specifically, the folding ladder adopts a rotatable structure with a vertical support and folding plates hinged together. It is lightweight, compact, and has high structural strength. It has two states: unfolded and folded for storage. When not in use, it can be folded up, not occupying aisle space. When moving, it can be moved along with the hydraulic support base without manual handling. When needed, the folding plates can be kept unfolded on the vertical support by locking components, making it convenient for personnel to use the folding plates as intermediate steps to climb onto the footboard, avoiding accidents caused by personnel climbing to heights.

[0018] Meanwhile, the upright support and folding plate adopt a frame structure, which gives the folding ladder high structural strength and hinge strength, and also makes it easy to fold and store the folding plate; the limiting component adopts a diagonal pull plate, which makes the folding process convenient, quick and easy to operate, prevents interference from accessories during folding, and reduces the space occupied after folding; the locking pin can keep the upright support and folding plate in the stored state; the foot pedal has a pin hole for temporary storage of the pin, and the foot pedal has a bending part to prevent people from stepping into the air. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the unfolded state of the folding pedal of this utility model;

[0021] Figure 3 This is a schematic diagram of the folding pedal of this utility model in its folded state;

[0022] Figure 4 This is a schematic diagram of the overall structure of this utility model installed on the hydraulic support base;

[0023] In the figure, the attached reference numerals are:

[0024] Folding ladder 100, vertical support 1, support side frame 11, first hinge shaft 12, second hinge shaft 13, fixing plate 14; folding plate 2, step side frame 21; inclined plate 3, limit pin 31, washer 32; locking pin 4.

[0025] Foot pedal 200, pin hole 201, ear plate 202, bending part 203;

[0026] Hydraulic support base 300. Detailed Implementation

[0027] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0028] Example 1

[0029] like Figure 1 ,Figure 4 As shown, the foldable footboard applied to the end of the hydraulic support working face in this embodiment includes a folding ladder 100 and a footboard 200. The footboard 200 is set on the hydraulic support base 300 as a pedestrian passage. Because the hydraulic support base 300 of the large mining height is relatively high, in order to facilitate personnel to climb the hydraulic support at the end of the hydraulic support working face, a folding ladder 100 is set on the hydraulic support base 300 at the end as an intermediate step for personnel to climb the footboard 200, avoiding the need for personnel to climb the footboard 200.

[0030] like Figures 1-3 As shown, the folding ladder 100 includes a vertical support 1, a folding plate 2, and a limiting member. The folding plate 2 is hinged to the vertical support 1, allowing the folding plate 2 to rotate relative to the vertical support 1, so as to facilitate the unfolding or folding of the folding plate 2 on the vertical support 1. When the limiting member is connected to the vertical support 1 and the folding plate 2, it maintains a fixed angle between the vertical support 1 and the folding plate 2, so that the folding plate 2 remains in an unfolded state on the vertical support 1. Therefore, the folding plate 2 becomes an intermediate step for facilitating people to climb onto the footboard 200 through the limiting member.

[0031] Optionally, when the folding plate 2 needs to be folded and stored, the connection between the limiting member and the folding plate 2 can be removed, and the folding plate 2 can be allowed to hang down naturally or locked relative to the vertical bracket 1 in a position parallel to the vertical bracket 1, without taking up too much space.

[0032] Optionally, the folding plate 2 is kept at a vertical angle to the vertical bracket 1 by a limiting member. This is suitable for situations where the hydraulic support base 300 is set on a horizontal working surface. In this case, the folding plate 2 can be kept horizontal to facilitate personnel to climb onto the foot pedal 200.

[0033] Optionally, the folding plate 2 maintains a certain acute or obtuse angle with the vertical support 1 through the limiting member. This is suitable for situations where the hydraulic support base 300 is set on an inclined working surface. In this case, the folding plate 2 can be kept horizontal to facilitate personnel to climb onto the foot pedal 200.

[0034] Optionally, the surfaces of the foot pedal 200 and the folding plate 2 of the folding ladder 100 are made of diamond-patterned plate and sprayed with anti-slip paint. Anti-slip square steel or anti-slip mats can also be provided on the surface of the folding plate 2 to improve strength and anti-slip effect.

[0035] In this embodiment, the folding ladder 100 adopts a rotatable structure with a hinge between the vertical support 1 and the folding plate 2. It is lightweight, small in size, and has high structural strength. It has two states: unfolded and folded for storage. When not in use, it can be folded up, which does not occupy the space in the alley. When moving the ladder, it can be moved together with the hydraulic support base without manual handling. When needed, the folding plate 2 can be kept unfolded on the vertical support 1 by locking the locking device, which makes it convenient for personnel to use the folding plate 2 as a relay step to climb the footboard 200, avoiding accidents caused by personnel climbing.

[0036] Example 2

[0037] In this embodiment, the vertical support 1 and the folding plate 2 adopt a frame structure. When the two rotate in opposite directions, one of them can be stored in the frame structure by the other. The frame structure can further enhance the overall structural strength, strengthen the hinge structure, and further reduce the space occupied by the folding ladder 100 in the folded storage state.

[0038] Specifically, the left and right sides of the vertical support frame 1 are provided with two support side frames 11; the left and right sides of the folding plate 2 frame structure are provided with two step side frames 21, and the folding plate 2 is located in the middle of the two step side frames 21. The folding plate 2 is used as a relay foot step for people to climb onto the foot pedal 200.

[0039] Optionally, a fixing plate 14 is provided in the middle of the frame structure of the vertical support 1. The fixing plate 14 can be used to fix and connect with the foot pedal 200 or the hydraulic support base 300.

[0040] Optionally, the frame structure of the vertical support 1 includes only a fixed plate 14 and two support side frames 11, without upper and lower side frames, in order to reduce the overall weight and prevent interference with the rotation of the folding plate 2.

[0041] The upright support 1 and the folding plate 2 adopt a frame structure, and the support side frame 11 of the upright support 1 and the step side frame 21 of the folding plate 2 can be hinged. Specifically, the support side frame 11 and the step side frame 21 can be hinged through a first hinge shaft 12 that passes through both support side frames 11 and both step side frames 21 at the same time. Using a first hinge shaft 12 can enhance the overall hinge strength.

[0042] In this embodiment, the vertical support 1 and the folding plate 2 adopt a frame structure, which makes the folding ladder 100 have high structural strength and hinge strength, and also makes it convenient to fold and store the folding plate 2.

[0043] Example 3

[0044] Based on embodiment 2, the limiting component is set as a slanted plate 3. The two ends of the slanted plate 3 are respectively connected to the side frame 11 of the bracket and the side frame 21 of the step. The slanted plate 3 fixes the folding plate 2 to the vertical bracket 1 at a fixed unfolding angle, so that the folding plate 2 is kept in the unfolded state, making it convenient for people to climb onto the foot pedal 200 through the folding plate 2.

[0045] Preferably, there are two inclined plates 3, and the two ends of the two inclined plates are respectively connected to the two sets of support side frames 11 and step side frames 21 on the left and right sides, so that the folding plate 2 of the folding ladder 100 has high unfolding strength.

[0046] The inclined plate 3 is hinged to the side frame 11 of the bracket. Specifically, the inclined plate 3 and the side frame 11 of the bracket are hinged together by a second hinge shaft 13, which passes through the inclined plate 3 and the side frame 11 of the bracket. Preferably, there are two second hinge shafts 13, with one second hinge shaft 13 passing through a set of inclined plates 3 and side frames 11 of the bracket. Preferably, the second hinge shaft 13 is perpendicular to the inclined plate 3 and parallel to the first hinge shaft 12.

[0047] The inclined plate 3 is connected to the side frame 21 of the step by a limiting pin 31. Specifically, the limiting pin 31 passes through the inclined plate 3 and the side frame 21 of the step. The limiting pin 31 can be removed as a latch to cancel the unfolded state of the folding plate 2.

[0048] Optionally, the inclined plate 3, the vertical support 1, and the folding plate 2 form a right-angled triangle structure, with the inclined plate 3 serving as the hypotenuse of the right-angled triangle structure.

[0049] Optionally, the limiting pin 31 can change the angle between the folding plate 2 and the vertical 1 by changing the connection position with the step side frame 21 (for example, by providing multiple holes on the step side frame 21 for the limiting pin 31 to be inserted). This is applicable when the hydraulic support base 300 is set on a possible inclined working surface, so that the folding plate 2 can be kept horizontal to facilitate personnel to climb onto the foot pedal 200.

[0050] Optionally, the limiting pin 31 is provided with a D-shaped buckle to prevent the limiting pin 31 from accidentally falling off when it passes through the inclined plate 3 and the side frame 21 of the step.

[0051] Preferably, two limiting pins 31 are provided. One limiting pin 31 passes through a set of inclined plates 3 and the side frame 21 of the step to complete the limiting of the folding plate 2. Using two limiting pins 31 makes it easy to pull out the limiting pins 31. In some cases (such as when the frame structure of the folding plate 2 is set upward), the limiting pins 31 can also avoid obstructing the step surface of the folding plate 2.

[0052] In this embodiment, based on the frame structure of the vertical support 1 and the folding plate 2, the limiting member is set as the inclined plate 3, so that the inclined plate 3 is hinged to the vertical support 1 and connected to the folding plate 2 through the limiting pin 31. By inserting or pulling out the limiting pin 31, the inclined plate 3 can be used to keep the folding plate 2 in the unfolded state. The folding or unfolding process is convenient, quick and easy to operate.

[0053] Example 4

[0054] Based on Example 3, such as Figure 2 , Figure 3 As shown, in order to avoid the diagonal bracing plate 3 interfering with the storage of the folding plate 2, the diagonal bracing plate 3 and the step side frame 21 connected to the same bracket side frame 11 are respectively located on both sides of the bracket side frame 11. When the vertical bracket 1 stores the folding plate 2 or when the folding plate 2 stores the vertical bracket 1, the folding plate 2 and the diagonal bracing plate 3 will not interfere with each other.

[0055] Optionally, such as Figure 3 As shown, a washer 32 is provided between the inclined plate 3 and the side frame 21 of the step. The washer can be used as axial compensation between the limit pin 31 and the side frame 21 of the step to prevent the limit pin 31 from shaking.

[0056] like Figure 3 As shown, the first hinge shaft 12 is located inside the side frame 11 of the support frame (i.e., the side of the side frame 11 closest to the foot pedal 200 along its length), and the second hinge shaft 13 is located outside the side frame 11 of the support frame (i.e., the side of the side frame 11 closest to the folding plate 100 along its length). Thus, when the folding plate 2 is folded, the inclined plate 3 naturally rotates and droops under its own weight. When the working surface of the hydraulic support is horizontal, the inclined plate 3 will not be interfered with by the first hinge shaft 12 and will not be unable to remain parallel to the vertical support 1, further reducing the space occupied by the folding ladder 100. Optionally, a hinge lug for connecting the second hinge shaft 13 is provided on the outer side of the side frame 11, allowing the second hinge shaft 13 to be located outside the side frame 11.

[0057] Example 5

[0058] Based on embodiment 2, the folding ladder 100 also includes a locking pin 4. In the frame structure of the vertical support 1 and the folding plate 2, when one of them is stored by the other, the locking pin 4 passes through the side frame 11 of the support and the side frame 21 of the step, so that the vertical support 1 and the folding plate 2 are kept in a stored state, that is, the folding ladder 100 is kept in a stored state, reducing the space occupied by the folding ladder 100 when it is not in use.

[0059] Example 6

[0060] In this embodiment, as Figure 3As shown, the foot pedal 200 is provided with a pin hole 201 for temporarily storing the pin. The locking pin 4 and / or the limiting pin 31 can be temporarily stored through the pin hole 201 to prevent loss.

[0061] In this embodiment, as Figure 2 As shown, the folding ladder 100 is fixedly mounted on the end of the foot pedal 200. The bottom of the foot pedal 200 is provided with an ear plate 202, which is used to connect to the hydraulic support base.

[0062] Optionally, such as Figure 2 As shown, when the middle of the frame structure of the vertical support 1 is set as a fixed plate 14, the fixed plate 14 can be used to fix and connect with the foot pedal 200. The two can be fixed and connected by multiple hexagonal bolts.

[0063] Optionally, such as Figure 1 As shown, the folding ladder 100 can be installed at either end of the foot pedal 200 via the fixing plate 14.

[0064] In this embodiment, as Figures 1-3 As shown, the foot pedal 200 has upward bending portions 203 on both sides, which are used to prevent pedestrians from stepping into empty spaces.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A foldable foot pedal applied to the working end of a hydraulic support, characterized in that, The system includes a folding ladder (100), which comprises a vertical support (1), a folding plate (2), and a limiting member. The folding plate (2) is hinged to the vertical support (1). When the limiting member is connected to the vertical support (1) and the folding plate (2), it maintains a fixed angle between the vertical support (1) and the folding plate (2). The vertical support (1) and the folding plate (2) adopt a frame structure. When they rotate in opposite directions, one of them can be stored in the frame structure by the other. The left and right sides of the frame structure are respectively provided with a support side frame (11) and a step side frame (21). The support side frame (11) and the step side frame (21) are hinged. The limiting member is set as a diagonal plate (3). The two ends of the diagonal plate (3) are respectively connected to the support side frame (11) and the step side frame (21). The vertical support (1) is hinged to the side frame (11) of the bracket, and the inclined plate (3) is connected to the side frame (21) of the step by a limiting pin (31); the folding ladder (100) also includes a locking pin (4), which, when inserted through the side frame (11) of the bracket and the side frame (21) of the step, keeps the vertical support (1) and the folding plate (2) together; the folding ladder (100) is fixedly installed at the end of the foot pedal (200), and the bottom of the foot pedal (200) is provided with an ear plate (202), which is used to connect the hydraulic support base (300); the middle of the frame structure of the vertical support (1) is provided with a fixing plate (14), which is fixedly connected to the foot pedal (200), and the folding plate (2) becomes a relay step for facilitating personnel to climb the foot pedal (200) through the limiting member.

2. The foldable foot pedal applied to the working face end of a hydraulic support according to claim 1, characterized in that, The inclined plate (3) and the step side frame (21) connected to the same bracket side frame (11) are respectively located on both sides of the bracket side frame (11) to avoid the inclined plate (3) interfering with the storage of the folding plate (2).

3. The foldable foot pedal applied to the working face end of a hydraulic support according to claim 1, characterized in that, A first hinge shaft (12) is provided between the side frame of the bracket (11) and the side frame of the step (21), and a second hinge shaft (13) is provided between the inclined plate (3) and the side frame of the bracket (11). The first hinge shaft (12) passes through the inner side of the side frame of the bracket (11), and the second hinge shaft (13) passes through the outer side of the side frame of the bracket (11).

4. The foldable foot pedal applied to the working face end of a hydraulic support according to claim 1, characterized in that, The foot pedal (200) is provided with a pin hole (201) for temporarily storing the pin.

5. The foldable foot pedal applied to the working face end of a hydraulic support according to claim 1, characterized in that, The foot pedal (200) has upward bending portions (203) on both sides, which are used to prevent pedestrians from stepping into empty spaces.

Images