Antiskid device and hydraulic support

Abstract

The utility model discloses an anti-skid device and a hydraulic support, and relates to the technical field of coal mining equipment. The cover plate is arranged on the top surface of the hydraulic support base, and an antiskid plate is arranged on the top surface of the cover plate; and the anti-skid bedding is arranged on the top surface of the anti-skid plate, and the anti-skid bedding is fixed on the top surface of the anti-skid plate by sequentially penetrating through the cover plate, the anti-skid plate and the anti-skid bedding through fixing bolts. According to the anti-skid device, the technical problems that an anti-skid plate in an existing anti-skid device is prone to colliding with people, normal walking of underground workers is affected, even the underground workers are knocked, normal and safe mining work of the underground is affected, and practicability is poor are solved; the anti-skid effect can be achieved when an underground worker vertically walks in a high pedestrian space, the problem of collision and bumping can be solved when the underground worker squats or creeps in a low pedestrian space, and the safety of the underground worker in the pedestrian space is effectively guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of coal mining equipment technology, and in particular to an anti-slip device and a hydraulic support. Background Technology

[0002] Medium-thick coal seam mining is a major component of coal mining. The thickness of medium-thick coal seams varies considerably, typically ranging from 1.3m to 3.5m. Hydraulic supports used in fully mechanized longwall mining faces for medium-thick coal seams have a maximum height of 3.8m or less and are suitable for minimum mining heights of 1.3m or more. When mining heights exceed two meters, underground workers need to walk upright in the pedestrian space of the hydraulic supports during normal coal mining operations. Currently, anti-slip plates are installed in the pedestrian space of the hydraulic supports for medium-thick coal seams to prevent underground workers from slipping during normal work and to facilitate their passage.

[0003] However, when the coal seam height is less than 1.6m, workers need to crawl through it during mining. In this situation, the rigid anti-slip protrusions on the anti-slip plate can bump into workers, affecting their movement and potentially injuring them, thus impacting safe mining operations and reducing its practicality. Therefore, this paper proposes an anti-slip device and hydraulic support to address these problems. Utility Model Content

[0004] The purpose of this utility model is to provide an anti-slip device and a hydraulic support, which solves the technical problem that the anti-slip plate in the existing anti-slip device is easy to bump into people, affect the normal passage of underground workers, or even injure underground workers, affecting the normal and safe mining work underground, and has poor practicality.

[0005] To achieve the above objectives, this utility model provides an anti-slip device, comprising:

[0006] Hydraulic support base;

[0007] A cover plate is provided on the top surface of the hydraulic support base, and an anti-slip plate is provided on the top surface of the cover plate. The anti-slip plate is used to provide support for the underground workers.

[0008] An anti-slip mat is placed on the top surface of the anti-slip plate. The anti-slip mat is fixed to the top surface of the anti-slip plate by means of fixing bolts that pass through the cover plate, the anti-slip plate and the anti-slip mat in sequence.

[0009] Preferably, the top surface of the cover plate is provided with a plurality of mounting holes, and a sealing plate is provided at a position near the bottom surface of the cover plate. A bolt fixing seat is provided on the sealing plate, and the bolt fixing seat is used to connect the fixing bolt.

[0010] Preferably, the bolt fixing seat includes: an integrally formed welding part and a snap-fit ​​part, wherein the welding part is welded to the sealing plate, and the snap-fit ​​part is snap-fitted to the fixing bolt.

[0011] Preferably, an assembly groove is provided at the snap-fit ​​portion to accommodate the head of the fixing bolt, and a U-shaped hole is provided on the top surface of the snap-fit ​​portion for the fixing bolt to pass through.

[0012] Preferably, the top surface of the bolt fixing seat is flush with the top surface of the cover plate, and the top surface of the fixing bolt is lower than the top surface of the anti-slip pad.

[0013] Preferably, the top surface of the anti-slip plate is arrayed with several through holes, each of which is located directly above a mounting hole, and the top surface of the anti-slip mat is arrayed with several stepped holes, each of which is located directly above a through hole.

[0014] Preferably, a rivet is provided at the location of the stepped hole, and the rivet connects to the stepped hole to seal the stepped hole.

[0015] Preferably, both the anti-slip mat and the rivets are made of polyurethane.

[0016] Preferably, the top surface of the anti-slip plate is arrayed with several alligator mouth protrusions, and the bottom surface of the anti-slip mat is arrayed with several limiting slots, each of the limiting slots engaging with one of the alligator mouth protrusions.

[0017] A hydraulic support includes the anti-slip device described in any one of the above claims.

[0018] Compared with the above-mentioned background technology, the anti-slip device provided by this utility model has the following beneficial effects: by setting an anti-slip pad on the top surface of the anti-slip plate, it can not only meet the anti-slip function when the underground workers walk upright in the higher pedestrian space, but also meet the problem of preventing collisions and bumps when the underground workers squat or even crawl in the lower pedestrian space. It takes into account the activities of the underground workers in the pedestrian space in both states, effectively ensuring the safety of the underground workers in the pedestrian space, and is more practical. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 A three-dimensional structural diagram of the hydraulic support provided in an embodiment of this utility model;

[0021] Figure 2A perspective view of the hydraulic support provided in another structural state according to an embodiment of the present utility model;

[0022] Figure 3 A plan view of the hydraulic support base provided in an embodiment of this utility model;

[0023] Figure 4 This is a plan view of the anti-slip plate provided in an embodiment of the present utility model;

[0024] Figure 5 A plan view of the anti-slip mat provided in this embodiment of the utility model;

[0025] Figure 6 A cross-sectional schematic diagram of the anti-slip mat provided in an embodiment of this utility model;

[0026] Figure 7 A cross-sectional schematic diagram of the fixing bolt base provided in an embodiment of this utility model;

[0027] Figure 8 A plan view of the fixing bolt base provided in an embodiment of this utility model;

[0028] Figure 9 for Figure 3 Enlarged diagram of point A in the middle.

[0029] Specifically, 1-hydraulic support base; 2-cover plate; 201-mounting hole; 3-anti-slip plate; 301-alligator protrusion; 302-through hole; 4-anti-slip pad; 401-limiting slot; 402-step hole; 5-bolt fixing seat; 501-welding part; 502-clamping part; 503-U-shaped hole; 504-assembly slot; 6-pedestrian space; 7-sealing plate; 8-rivet; 9-fixing bolt. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] like Figure 1 , Figure 2 and Figure 3As shown, in order to achieve the above objectives, this utility model provides an anti-slip device, including: a hydraulic support base 1, a cover plate 2, an anti-slip plate 3, and an anti-slip mat 4.

[0033] The hydraulic support base 1 is located at the bottom of the hydraulic support and mainly provides support for the overall hydraulic support. The hydraulic support adjusts its structural state according to the thickness of the medium-thick coal seam to ensure that the hydraulic support can be applied to the corresponding medium-thick coal seam. A pedestrian space 6 is formed between the hydraulic support base 1 and the top structure of the hydraulic support for underground workers to pass through.

[0034] like Figure 9 As shown, a cover plate 2 is provided on the top surface of the hydraulic support base 1, and an anti-slip plate 3 is provided on the top surface of the cover plate 2. The anti-slip plate 3 is welded to the surface of the cover plate 2 to ensure that there are no protruding objects in the pedestrian space 6 on the hydraulic support base 1. By installing the cover plate 2 on the top surface of the hydraulic support base 1, it is easy to install the anti-slip plate 3. The anti-slip plate 3 also provides a certain degree of support, which can meet the needs of underground workers to walk upright normally in the pedestrian space 6. An anti-slip mat 4 is provided on the top surface of the anti-slip plate 3. Preferably, the anti-slip mat 4 is made of polyurethane material. Polyurethane is a flexible elastomer material with a certain degree of hardness, which can ensure that the anti-slip mat 4 is stably attached to the top surface of the anti-slip plate 3.

[0035] By passing the fixing bolts 9 sequentially through the cover plate 2, the anti-slip plate 3, and the anti-slip mat 4, the anti-slip mat 4 is fixed to the top surface of the anti-slip plate 3. When the underground workers need to crawl through the pedestrian space 6, the anti-slip mat 4 can cover the anti-slip protrusions on the anti-slip plate 3, preventing the anti-slip protrusions from hitting the underground workers and avoiding injuries to the underground workers when passing through the pedestrian space 6. This effectively ensures the safety of the underground workers in the pedestrian space 6 and has better practicality.

[0036] In one embodiment of this utility model, a plurality of mounting holes 201 are provided on the top surface of the cover plate 2. The mounting holes 201 are generally square in shape, and the size of the mounting holes 201 is sufficient to ensure the normal installation of the fixing bolts 9. Specifically, four mounting holes 201 are provided on the top surface of the cover plate 2, and the four mounting holes 201 penetrate the cover plate 2. A sealing plate 7 is provided at the position of the mounting holes 201 near the bottom surface of the cover plate 2. The sealing plate 7 is welded to the position of the mounting holes 201. The top surface of the sealing plate 7 is lower than the top surface of the cover plate 2. A bolt fixing seat 5 is provided on the sealing plate 7. The bolt fixing seat 5 is used to connect the lower end of the fixing bolt 9. The upper end of the fixing bolt 9 is fixedly connected to the anti-slip plate 3 and the anti-slip pad 4.

[0037] like Figure 4 and Figure 5As shown, specifically, the bolt fixing seat 5 includes an integrally formed welding part 501 and a snap-fit ​​part 502. The welding part 501 is mainly used to connect the sealing plate 7. Specifically, the welding part 501 welds to the top surface of the sealing plate 7, and the snap-fit ​​part 502 snaps to connect the fixing bolt 9. Preferably, an assembly groove 504 is provided on the top surface of the snap-fit ​​part 502. The assembly groove 504 is used to accommodate the head of the fixing bolt 9, which is located at the lower end of the fixing bolt 9. A U-shaped hole 503 is provided on the top surface of the snap-fit ​​part 502. The U-shaped hole 503 penetrates the snap-fit ​​part 502 and communicates with the assembly groove 504. The U-shaped hole 503 is used to pass through the fixing bolt 9. It should be noted that an opening is provided on one side of the snap-fit ​​part 502, which communicates with the assembly groove 504, allowing the head of the fixing bolt 9 to enter the assembly groove 504. It should be further noted that after the head of the fixing bolt 9 enters the assembly groove 504, the fixing bolt 9 cannot rotate relative to the base of the fixing bolt 9, so as to facilitate the installation of the nut on the upper end of the fixing bolt 9.

[0038] It should be noted that the top surface of the bolt fixing seat 5 is flush with the top surface of the cover plate 2, so that the bolt fixing seat 5 can lift the anti-slip plate 3, ensuring that the anti-slip plate 3 can be stably attached to the top surface of the cover plate 2, and that the anti-slip plate 3 is smoothly placed on the cover plate 2. In addition, the top surface of the fixing bolt 9 is lower than the top surface of the anti-slip pad 4, ensuring that after the anti-slip pad 4 is installed on the anti-slip plate 3, the top surface of the anti-slip pad 4 remains flat and will not bump into the underground workers, making it convenient for the underground workers to crawl through.

[0039] In one embodiment of this utility model, the top surface of the anti-slip plate 3 is arrayed with several through holes 302, each through hole 302 being located directly above a mounting hole 201, and the top surface of the anti-slip mat 4 is arrayed with several stepped holes, each stepped hole being located directly above a through hole 302. The fixing bolt 9 can pass through the through hole 302 and the stepped hole in sequence, and is connected to the upper end of the fixing bolt 9 by a nut, the nut being located inside the stepped hole.

[0040] In addition, a rivet 8 is provided at the position of the stepped hole. The bottom of the rivet 8 is provided with a receiving cavity that can accommodate the nut. Threads are provided on the outer circumferential side of the rivet 8 and the inner circumferential side of the stepped hole, so that the rivet 8 can be threaded into the stepped hole. The rivet 8 connects to the stepped hole to seal the stepped hole, further ensuring that the top surface of the anti-slip mat 4 is flatter. Preferably, the rivet 8 is made of polyurethane material, which is the same material as the anti-slip mat 4.

[0041] like Figure 6 , Figure 7 and Figure 8As shown, in one embodiment of this utility model, a plurality of alligator mouth protrusions 301 are arranged in an array on the top surface of the anti-slip plate 3, and a plurality of limiting slots 401 are arranged in an array on the bottom surface of the anti-slip mat 4. Each limiting slot 401 is connected to an alligator mouth protrusion 301. The alligator mouth protrusion 301 and the limiting slot 401 cooperate with each other, which can further increase the friction between the anti-slip plate 3 and the anti-slip mat 4, prevent the anti-slip mat 4 from moving back and forth on the anti-slip mat 4, and improve the stability of the anti-slip mat 4 fixed on the anti-slip plate 3.

[0042] To further ensure the relative position of the anti-slip mat 4 and the anti-slip plate 3 is fixed, a position sensor can also be installed on the hydraulic support base 1. The position sensor is used to obtain the position of the anti-slip mat 4. Since the anti-slip plate 3 is usually connected to the cover plate 2 by welding or other methods, the relative positional relationship of the hydraulic support base 1, the cover plate 2 and the anti-slip plate 3 is stable. However, as the anti-slip mat 4 is a component that comes into direct contact with the underground workers, the anti-slip mat 4 tends to move due to the frequent friction from the underground workers. This can easily lead to the failure of the connection between the anti-slip mat 4 and the anti-slip plate 3, thus affecting the anti-slip effect. Based on this, the position sensor is used to detect the position of the anti-slip mat 4. If the position of the anti-slip mat 4 relative to the anti-slip plate 3 exceeds the preset threshold range, an alarm will be triggered, indicating that the anti-slip mat 4 needs to be replaced or maintained.

[0043] Of course, the position sensor can also start acquiring the position of the anti-slip mat 4 only when the underground worker is about to enter the pedestrian space 6. That is, a detector is set at the entrance of the pedestrian space 6. The detector is used to detect whether an underground worker is entering the pedestrian space 6. The detector is connected to the position sensor and the control device. The position sensor is used to acquire the position of the anti-slip mat 4 when the detector detects that an underground worker has entered the pedestrian space 6. The control device compares the current position of the anti-slip mat 4 acquired by the position sensor with the initial position of the anti-slip mat 4. Once the current position and the initial position exceed the preset threshold range, the alarm device located at the entrance of the pedestrian space 6 will be activated to warn the underground worker about to enter the pedestrian space 6 to be careful. It is best to set the alarm device above the detector so that the detector can more reliably detect whether an underground worker has entered the pedestrian space 6, and the audible and visual alarm emitted by the alarm device can be more effectively received by the underground worker.

[0044] Meanwhile, for cases where multiple anti-slip mats 4 are set up, the position sensor can acquire the position of all anti-slip mats 4. At the same time, the control device can simultaneously determine whether the current position of all anti-slip mats 4 and their corresponding initial positions exceed the preset threshold range. When the position of one or more anti-slip mats 4 is abnormal (exceeding the preset threshold range), the alarm device can be used to raise the alarm via voice to indicate which anti-slip mats 4 are abnormal. Of course, the alarm device can also be set up with multiple alarm lights, the arrangement of the alarm lights is the same as the arrangement of the anti-slip mats 4, and the number of alarm lights is the same as the number of anti-slip mats 4. That is, there is a one-to-one correspondence between the alarm lights and the anti-slip mats 4. When the position of some anti-slip mats 4 is abnormal, the corresponding alarm light flashes, which can more intuitively indicate the anti-slip mats 4 with abnormal positions.

[0045] In summary, by setting an anti-slip mat 4 on the top surface of the anti-slip plate 3, it can not only prevent slipping when the underground workers are walking upright in the higher pedestrian space 6, but also prevent collisions and bumps when the underground workers are squatting or even crawling in the lower pedestrian space 6. It takes into account the activities of the underground workers in the pedestrian space 6 in both states, effectively ensuring the safety of the underground workers in the pedestrian space 6.

[0046] In addition to the anti-slip device mentioned above, this utility model also provides a hydraulic support that includes the anti-slip device disclosed in the above embodiments. For the structure of other parts of the hydraulic support, please refer to the prior art, which will not be repeated here.

[0047] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0048] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. An anti-slip device, characterized in that, include: Hydraulic support base; A cover plate is provided on the top surface of the hydraulic support base, and an anti-slip plate is provided on the top surface of the cover plate. The anti-slip plate is used to provide support for the underground workers. An anti-slip mat is placed on the top surface of the anti-slip plate. The anti-slip mat is fixed to the top surface of the anti-slip plate by means of fixing bolts that pass through the cover plate, the anti-slip plate and the anti-slip mat in sequence.

2. The anti-slip device according to claim 1, characterized in that, The top surface of the cover plate is provided with a plurality of mounting holes, and a sealing plate is provided at a position near the bottom surface of the cover plate. A bolt fixing seat is provided on the sealing plate, and the bolt fixing seat is used to connect the fixing bolt.

3. The anti-slip device according to claim 2, characterized in that, The bolt fixing seat includes an integrally formed welding part and a snap-fit ​​part, wherein the welding part is welded to the sealing plate and the snap-fit ​​part is snap-fitted to the fixing bolt.

4. The anti-slip device according to claim 3, characterized in that, An assembly groove is provided at the snap-fit ​​part to accommodate the head of the fixing bolt. A U-shaped hole is provided on the top surface of the snap-fit ​​part for the fixing bolt to pass through.

5. The anti-slip device according to claim 2, characterized in that, The top surface of the bolt fixing seat is flush with the top surface of the cover plate, and the top surface of the fixing bolt is lower than the top surface of the anti-slip pad.

6. The anti-slip device according to claim 2, characterized in that, The top surface of the anti-slip plate is arrayed with several through holes, each of which is located directly above a mounting hole. The top surface of the anti-slip mat is arrayed with several stepped holes, each of which is located directly above a through hole.

7. The anti-slip device according to claim 6, characterized in that, A rivet is installed at the location of the stepped hole, and the rivet connects to the stepped hole to seal the stepped hole.

8. The anti-slip device according to claim 7, characterized in that, Both the anti-slip mat and the rivets are made of polyurethane.

9. The anti-slip device according to claim 6, characterized in that, The top surface of the anti-slip plate is arrayed with several alligator mouth protrusions, and the bottom surface of the anti-slip mat is arrayed with several limiting slots, each of the limiting slots being engaged with one of the alligator mouth protrusions.

10. A hydraulic support, characterized in that, The anti-slip device includes any one of claims 1-9.

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