Uninterrupted pedal for roadway support
Through the design of sliding connection and locking structure, the gap problem of foot pedals in coal mine tunnel brackets is solved, the continuous and uninterrupted use of foot pedals is achieved, the safety and operation convenience of workers are improved, and the bottom surface of the tunnel is adapted to uneven environment.
Patent Information
- Application Number
- CN202420622337.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-28
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-03-28
AI Technical Summary
During the advance bracket transfer of coal mine tunnels, the existing pedal design leads to gaps, increasing safety hazards and operation difficulties for operators.
Design an uninterrupted foot pedal system including a first foot pedal, a second foot pedal and a third foot pedal. The continuity and stability of the foot pedal are ensured through a sliding connection and locking structure, and adapt to the bottom of the tunnel. Level the environment.
It realizes continuous and uninterrupted use of foot pedals, improves the walking safety and maintenance convenience of operators, adapts to complex environments, and has a simple and economical structural design.
Smart Images
Figure CN222141296U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coal mine equipment, in particular to an uninterrupted foot pedal for a tunnel support. Background Art
[0002] In the complete set of coal mine comprehensive mining equipment, hydraulic support is the key equipment to ensure the operation of workers and the operation of equipment. In order to ensure the safety of workers, the design of the foot pedal in the pedestrian passage of the hydraulic support is very important.
[0003] In the tunnel advance support, the first frame, middle frame and tail frame are connected to each other by push jacks. The workers in the mine work or walk on the working surface by pedals. As the support slides, a large gap is created between the first, middle and tail frames. At this time, the foot pedals cannot cover them and cannot meet the use requirements. When the workers pass through the area without foot pedals, it is time-consuming and laborious to get on and off the supports, which greatly increases the danger in the mine.
[0004] Most of the pedals in the prior art are independent of each other. For example, the utility model patent with announcement number CN218407496U discloses a head and tail pedal device suitable for a fully mechanized mining face with a large mining height. Figure 1 It can be seen that the pedals are independent of each other. As the bracket moves, gaps are created between the pedals, posing certain safety hazards when workers pass through. Utility Model Content
[0005] The purpose of the utility model is to provide an uninterrupted foot pedal for a tunnel support in order to solve the above-mentioned problem.
[0006] The utility model achieves the above-mentioned purpose through the following technical solutions:
[0007] An uninterrupted foot pedal for a lane support, comprising a first foot pedal, a second foot pedal and a third foot pedal, wherein the second foot pedal is fixedly connected to a support rod at the bottom, and the first foot pedal and the third foot pedal are slidably connected to the two ends of the second foot pedal, respectively, and the second foot pedal is also provided with a limiting structure for limiting the first foot pedal and the third foot pedal to prevent the first foot pedal or the third foot pedal from being separated from the second foot pedal;
[0008] A first foot pedal, wherein one end of the first foot pedal away from the second foot pedal is fixedly connected to a first ear plate, and the first ear plate is used to connect to an external bracket;
[0009] The third foot pedal has an end thereof which is away from the second foot pedal and is fixedly connected with a second ear plate, and the second ear plate is used for connecting with an external bracket.
[0010] As a further improvement, the first foot pedal and the third foot pedal are both provided with a locking structure, and the locking structure is used to lock the first foot pedal or the third foot pedal.
[0011] As a further improvement, the locking structure is a locking hole, and the first foot pedal and the third foot pedal are both provided with a locking hole at one end close to the second foot pedal.
[0012] As a further improvement, both ends of the second foot pedal are provided with slide grooves, and the first foot pedal and the third foot pedal are connected to one end close to the second foot pedal with a cylindrical pin shaft, and the cylindrical pin shaft is slidably connected inside the slide groove.
[0013] As a further improvement, one end of the first foot pedal and the third foot pedal close to the second foot pedal is fixedly connected with a curved transition plate.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] 1. The first foot pedal and the third foot pedal are respectively connected by sliding on the second foot pedal. When the front bracket moves forward, the first foot pedal or the third foot pedal slides on the second foot pedal, so that the utility model is extended as a whole, and the whole is continuous and uninterrupted, which is convenient for operators to walk and repair safely.
[0016] 2. By setting the slide groove and the cylindrical pin shaft, the first foot pedal and the third foot pedal can slide on the second foot pedal and can also rotate. The first foot pedal and the third foot pedal are respectively hinged on the front and rear brackets, so that the utility model can adapt to the uneven environment of the bottom surface of the tunnel.
[0017] 3. The utility model has a simple structure, is economical and applicable, and is conducive to popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0019] Figure 1 It is a stereoscopic diagram of an uninterrupted foot pedal for a tunnel support described in the utility model.
[0020] Figure 2 It is a structural schematic diagram of an uninterrupted foot pedal for a tunnel support described in the utility model.
[0021] The following are the descriptions of the reference numerals:
[0022] 1. First ear plate; 2. First foot pedal; 3. Second foot pedal; 4. Support rod; 5. Third foot pedal; 6. Second ear plate; 7. Slide groove; 8. Locking hole; 9. Cylindrical pin shaft. DETAILED DESCRIPTION
[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.
[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.
[0025] The utility model is further described below in conjunction with the accompanying drawings:
[0026] like Figure 1 and Figure 2 As shown, the tunnel support uses an uninterrupted foot pedal, including a first foot pedal 2, a second foot pedal 3 and a third foot pedal 5. The bottom of the second foot pedal 3 is fixedly connected to a support rod 4, and the support rod 4 is used to fix the second foot pedal 3 on the base. The two ends of the second foot pedal 3 are respectively slidably connected to the first foot pedal 2 and the third foot pedal 5. The second foot pedal 3 is also provided with a limiting structure for limiting the first foot pedal 2 and the third foot pedal 5 to prevent the first foot pedal 2 or the third foot pedal 5 from separating from the second foot pedal 3.
[0027] In this embodiment, slide grooves 7 are provided at both ends of the second foot pedal 3. In order to improve the connection stability, two slide grooves 7 are provided at each end of the second foot pedal 3. The length of the slide grooves 7 can be adjusted according to the pushing stroke of the advance bracket. The slide grooves 7 can realize the sliding connection between the first foot pedal 2, the third foot pedal 5 and the second foot pedal 3. The slide grooves 7 are also a limiting structure, which can play a limiting role to prevent the first foot pedal 2 or the third foot pedal 5 from being separated from the second foot pedal 3.
[0028] The first foot pedal 2, one end of the first foot pedal 2 away from the second foot pedal 3 is fixedly connected with the first ear plate 1, the first ear plate 1 is used to connect to the external bracket, the first foot pedal 2 is hinged to the front bracket or the rear bracket through the first ear plate 1; the first foot pedal 2 is connected with a cylindrical pin 9 at one end close to the second foot pedal 3, the cylindrical pin 9 is slidably connected in the slide groove 7, and because the pin is cylindrical, the first foot pedal 2 can both slide along the slide groove 7 and rotate around the cylindrical pin 9.
[0029] The third footrest 5, one end of the third footrest 5 away from the second footrest 3 is fixedly connected with a second ear plate 6, the second ear plate 6 is used to connect the external bracket, and the third footrest 5 is hinged to the front bracket or the rear bracket through the second ear plate 6. The structure of the third footrest 5 is the same as that of the first footrest 2, and the lengths of the first footrest 2 and the third footrest 5 can be adjusted according to actual conditions.
[0030] The first footrest 2 and the third footrest 5 are both provided with a locking structure, and the locking structure is used to lock the first footrest 2 or the third footrest 5. In this embodiment, the locking structure is a locking hole 8, and the first footrest 2 and the third footrest 5 are both provided with a locking hole 8 at one end close to the second footrest 3, and the locking hole 8 is a threaded hole. When the bracket moves to the set position, the bolt is installed in the locking hole 8, and the bolt presses against the second footrest 3 to prevent the first footrest 2 or the third footrest 5 from shaking. In other embodiments, a limiting hole can also be provided on the second footrest 3. When the bracket is completely displaced, the bolt or the pin is inserted into the limiting hole through the locking hole 8 to prevent the first footrest 2 or the third footrest 5 from shaking.
[0031] The first foot pedal 2 and the third foot pedal 5 are fixedly connected to one end close to the second foot pedal 3 with an arc-shaped transition plate 10. The arc-shaped transition plate 10 can be made of rubber material to achieve a smooth transition between the first foot pedal 2 and the second foot pedal 3 or between the third foot pedal 5 and the second foot pedal 3.
[0032] Working principle: Take the connection between the first pedal 2 and the front bracket as an example. When the front bracket moves toward the front, the first pedal 2 and the second pedal 3 slide relative to each other, and the cylindrical pin 9 slides in the slide groove 7. The slide groove 7 can play a limiting role to prevent the first pedal 2 and the second pedal 3 from separating and avoid gaps between the pedals. Since the environment in the lane is relatively complex and the ground is uneven, when the front terrain is high or low, the cylindrical pin 9 can rotate in the slide groove 7 to change the angle between the first pedal 2 and the second pedal 3, so as to better adapt to the lane environment. After the front and rear brackets are moved to the set position, the first pedal 2 and the third pedal 5 are locked and fixed to prevent the first pedal 2 and the third pedal 5 from shaking.
[0033] The basic principles, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements shall fall within the scope of the utility model to be protected.
Claims
1. An uninterrupted foot pedal for a tunnel support, characterized in that: include: A second foot pedal (3), the bottom of the second foot pedal (3) being fixedly connected to a support rod (4), the two ends of the second foot pedal (3) being slidably connected to the first foot pedal (2) and the third foot pedal (5), respectively, the second foot pedal (3) being further provided with a limiting structure for limiting the first foot pedal (2) and the third foot pedal (5), so as to prevent the first foot pedal (2) or the third foot pedal (5) from being separated from the second foot pedal (3); A first foot pedal (2), one end of the first foot pedal (2) away from the second foot pedal (3) being fixedly connected to a first ear plate (1), the first ear plate (1) being used for connecting to an external bracket; A third foot pedal (5), one end of the third foot pedal (5) away from the second foot pedal (3) is fixedly connected to a second ear plate (6), and the second ear plate (6) is used to connect to an external bracket.
2. The uninterrupted foot pedal for the tunnel support according to claim 1, characterized in that: The first foot pedal (2) and the third foot pedal (5) are both provided with a locking structure, and the locking structure is used to lock the first foot pedal (2) or the third foot pedal (5).
3. The uninterrupted foot pedal for the tunnel support according to claim 2 is characterized in that: The locking structure is a locking hole (8), and the first foot pedal (2) and the third foot pedal (5) are both provided with a locking hole (8) at one end close to the second foot pedal (3).
4. The uninterrupted foot pedal for the tunnel support according to claim 1, characterized in that: Both ends of the second foot pedal (3) are provided with slide grooves (7); the ends of the first foot pedal (2) and the third foot pedal (5) close to the second foot pedal (3) are connected to cylindrical pin shafts (9); the cylindrical pin shafts (9) are slidably connected inside the slide grooves (7).
5. The uninterrupted foot pedal for the tunnel support according to claim 1, characterized in that: An arc-shaped transition plate (10) is fixedly connected to one end of the first foot pedal (2) and the third foot pedal (5) close to the second foot pedal (3).