Antiskid device and hydraulic support

Abstract

The invention 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 and even climbs in a low pedestrian space, and the safety of the underground worker in the pedestrian space is effectively guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of coal mining equipment, and in particular to an anti-skid device and a hydraulic support. Background Art

[0002] Medium-thick coal seam mining is the main component of coal mining. The thickness of medium-thick coal seams varies greatly, usually between 1.3m and 3.5m. The maximum height of the hydraulic support used in medium-thick coal seams in fully mechanized mining working faces is less than or equal to 3.8m, and it is also suitable for a minimum mining height of more than 1.3m. When there is a mining height of more than two meters, underground workers need to walk upright in the pedestrian space of the hydraulic support during normal coal mining work. At present, anti-skid plates are set in the pedestrian space of the hydraulic support in medium-thick coal seams to prevent underground workers from slipping during normal work and facilitate the passage of underground workers.

[0003] However, when the coal seam height is lower than 1.6m, people need to crawl through during mining. At this time, the rigid anti-skid protrusions on the anti-skid plate will bump into people, affecting the normal walking of underground workers, and even injuring underground workers, affecting the normal and safe mining work underground, and the practicality is poor. Therefore, an anti-skid device and a hydraulic support are proposed to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide an anti-skid device and a hydraulic support, which solves the technical problem that the anti-skid plate in the existing anti-skid device is easy to bump into people, affecting the normal walking of underground workers, and even injuring underground workers, affecting the normal and safe mining work underground, and has poor practicality.

[0005] To achieve the above object, the present invention provides an anti-slip device, comprising:

[0006] Hydraulic support base;

[0007] A cover plate is arranged on the top surface of the hydraulic support base, and an anti-skid plate is arranged on the top surface of the cover plate, and the anti-skid plate is used to provide support force for underground workers;

[0008] The anti-skid mat is arranged on the top surface of the anti-skid plate, and fixing bolts pass through the cover plate, the anti-skid plate and the anti-skid mat in sequence to fix the anti-skid mat on the top surface of the anti-skid plate.

[0009] Preferably, a plurality of mounting holes are arranged on the top surface of the cover plate, a sealing plate is arranged at a position of the mounting holes close to the bottom surface of the cover plate, a bolt fixing seat is arranged on the sealing plate, and the bolt fixing seat is used to connect the fixing bolts.

[0010] Preferably, the bolt fixing seat comprises: a welding portion and a clamping portion which are integrally arranged, the welding portion is welded to the sealing plate, and the clamping portion is clamped to the fixing bolt.

[0011] Preferably, an assembly groove is provided at the position of the clamping portion, the assembly groove is used to accommodate the head of the fixing bolt, and a U-shaped hole is provided on the top surface of the clamping portion, the U-shaped hole is used to pass the fixing bolt.

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

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

[0014] Preferably, a rivet is provided at the position of the step hole, and the rivet is connected to the step hole to seal the step hole.

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

[0016] Preferably, a plurality of crocodile-mouth protrusions are arranged in an array on the top surface of the anti-slip plate, and a plurality of position-limiting slots are arranged in an array on the bottom surface of the anti-slip mat, and each of the position-limiting slots is connected to one of the crocodile-mouth protrusions.

[0017] A hydraulic support comprises the anti-skid device described in any one of the above items.

[0018] Compared with the above-mentioned background technology, the anti-slip device provided by the present invention has the following beneficial effects: by arranging an anti-slip pad on the top surface of the anti-slip plate, it can not only meet the anti-slip effect of underground workers when walking upright in the higher pedestrian space, but also meet the underground workers in the lower pedestrian space. The problem of preventing collisions and bumps when squatting or even crawling, while taking into account the activities of underground workers in the pedestrian space in two states, effectively ensuring the safety of underground workers in the pedestrian space, and being more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention 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 embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0020] Figure 1 A three-dimensional structural diagram of a hydraulic support provided by an embodiment of the present invention;

[0021] Figure 2A three-dimensional structural diagram of a hydraulic support provided by an embodiment of the present invention in another structural state;

[0022] Figure 3 A schematic plan view of a hydraulic support base provided by an embodiment of the present invention;

[0023] Figure 4 A schematic plan view of an anti-skid plate provided by an embodiment of the present invention;

[0024] Figure 5 A schematic plan view of an anti-slip mat provided by an embodiment of the present invention;

[0025] Figure 6 A cross-sectional schematic diagram of an anti-slip mat provided by an embodiment of the present invention;

[0026] Figure 7 A cross-sectional schematic diagram of a fixing bolt base provided by an embodiment of the present invention;

[0027] Figure 8 A schematic plan view of a fixing bolt base provided by an embodiment of the present invention;

[0028] Fig. 9 for Figure 3 A magnified schematic diagram of center A.

[0029] Specifically, 1-hydraulic support base; 2-cover plate; 201-mounting hole; 3-anti-skid plate; 301-crocodile mouth 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 groove; 6-pedestrian space; 7-covering plate; 8-rivet; 9-fixing bolt. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0032] like Figure 1 , Figure 2 and Figure 3 As shown, in order to achieve the above purpose, the present invention provides an anti-skid device, including: a hydraulic support base 1, a cover plate 2, an anti-skid plate 3 and an anti-skid mat 4.

[0033] The hydraulic support base 1 is arranged at the bottom of the hydraulic support, mainly providing support for the whole hydraulic support, and the hydraulic support adjusts its own 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, and the pedestrian space 6 is used for underground workers to pass through.

[0034] like Fig. 9 As shown, a cover plate 2 is provided on the top surface of the hydraulic support base 1, and an anti-skid plate 3 is provided on the top surface of the cover plate 2. The anti-skid plate 3 is welded and connected 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 convenient to install the anti-skid plate 3. The anti-skid plate 3 also provides a certain support function, which can meet the needs of underground workers to walk upright in the pedestrian space 6. An anti-skid mat 4 is provided on the top surface of the anti-skid mat 3. Preferably, the anti-skid mat 4 is made of polyurethane material, which is a flexible elastic material with a certain hardness, and can ensure that the anti-skid mat 4 is stably attached to the top surface of the anti-skid plate 3.

[0035] The anti-slip mat 4 is fixed to the top surface of the anti-slip skid plate 3 by passing the fixing bolts 9 through the cover plate 2, the anti-slip skid plate 3 and the anti-slip mat 4 in sequence. When 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 skid plate 3 to prevent the anti-slip protrusions from hitting the underground workers, thereby avoiding injuries to the underground workers when passing through the pedestrian space 6, effectively ensuring the safety of the underground workers in the pedestrian space 6, and having better practicality.

[0036] In one embodiment of the present invention, 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 can 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 a position where the mounting holes 201 are close to the bottom surface of the cover plate 2, and the sealing plate 7 is welded at 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, and the upper end of the fixing bolt 9 is fixedly connected to the anti-slip plate 3 and the anti-slip mat 4.

[0037] like Figure 4 and Figure 5As shown, specifically, the bolt fixing seat 5 includes: an integrally arranged welding portion 501 and a clamping portion 502, the welding portion 501 is mainly used to connect the sealing plate 7, specifically, the welding portion 501 is welded to the top surface of the sealing plate 7, and the clamping portion 502 is clamped to connect the fixing bolt 9. Preferably, a mounting groove 504 is arranged on the top surface of the clamping portion 502, the mounting groove 504 is used to accommodate the head of the fixing bolt 9, the head of the fixing bolt 9 is located at the lower end of the fixing bolt 9, and a U-shaped hole 503 is arranged on the top surface of the clamping portion 502, the U-shaped hole 503 penetrates the clamping portion 502 and communicates with the mounting groove 504, and the U-shaped hole 503 is used to penetrate the fixing bolt 9. It should be noted that an opening is arranged on one side of the clamping portion 502, the opening communicates with the mounting groove 504, and the head of the fixing bolt 9 enters the mounting groove 504. It should be further noted that after the head of the fixing bolt 9 enters the mounting 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, so that the anti-slip plate 3 is smoothly set 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 mat 4, ensuring that after the anti-slip mat 4 is installed on the anti-slip mat 3, the top surface of the anti-slip mat 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 the present invention, a plurality of through holes 302 are arranged in an array on the top surface of the anti-slip plate 3, and each through hole 302 is located directly above a mounting hole 201, and a plurality of step holes are arranged in an array on the top surface of the anti-slip mat 4, and each step hole is located directly above a through hole 302, and the fixing bolt 9 can pass through the through hole 302 and the step hole in sequence, and be connected to the upper end of the fixing bolt 9 through a nut, and the nut is located in the step hole.

[0040] In addition, a rivet 8 is arranged at the position of the step hole, and a receiving cavity is arranged at the bottom of the rivet 8, which can accommodate the nut, and threaded lines are arranged on the outer peripheral side of the rivet 8 and the inner peripheral side of the step hole, so that the rivet 8 can be threadedly connected to the step hole. The rivet 8 is connected to the step hole to seal the step hole, further ensuring that the top surface of the anti-slip mat 4 is smoother. 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 the present invention, a plurality of crocodile-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 a crocodile-mouth protrusion 301, and the crocodile-mouth protrusion 301 cooperates with the limiting slot 401, and the friction between the anti-slip plate 3 and the anti-slip mat 4 can be further increased, thereby preventing the anti-slip mat 4 from moving back and forth on the anti-slip mat 4, and improving the stability of the anti-slip mat 4 fixed on the anti-slip plate 3.

[0042] To further ensure that the relative positions of the anti-skid mat 4 and the anti-skid plate 3 are fixed, a position sensor can also be arranged on the hydraulic support base 1. The position sensor is used to obtain the position of the anti-skid mat 4. Since the anti-skid plate 3 is usually connected to the cover plate 2 by welding or other means, that is, the relative position relationship among the hydraulic support base 1, the cover plate 2 and the anti-skid plate 3 is stable, and the anti-skid mat 4 is a component that is in direct contact with the underground workers. The anti-skid mat 4 has a tendency to move due to the frequent friction of the underground workers, which can easily lead to the connection failure between the anti-skid mat 4 and the anti-skid plate 3, thereby affecting the anti-skid effect. Based on this, the position sensor is used to detect the position of the anti-skid mat 4. If the position of the anti-skid mat 4 relative to the anti-skid plate 3 exceeds the preset threshold range, an alarm will be triggered to indicate that the anti-skid mat 4 needs to be replaced or maintained.

[0043] Of course, the position sensor can also start to obtain the position of the anti-slip mat 4 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, and the detector is used to detect whether there is an underground worker entering the pedestrian space 6. The detector is connected to the position sensor and the control device. The position sensor is used to obtain 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 obtained 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 controlled to sound an alarm, reminding the underground worker who is about to enter the pedestrian space 6 to be careful when entering the pedestrian space 6. The alarm device is preferably set above the detector, so that the detector can more reliably detect whether there is an underground worker entering the pedestrian space 6, and the sound and light alarm emitted by the alarm device can be more effectively known to the underground workers.

[0044] At the same time, in the case of setting up multiple anti-slip mats 4, the position of all anti-slip mats 4 can be obtained by using a position sensor, and 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 some anti-slip mats 4 is abnormal (exceeding the preset threshold range), the alarm device can be used to raise the issue of the abnormal position of the anti-slip mats 4 through voice. Of course, the alarm device can also be set to multiple groups of alarm lights, and the arrangement of the alarm lights is consistent with 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, the alarm lights and anti-slip mats 4 are in a one-to-one correspondence. When the position of some anti-slip mats 4 is abnormal, the corresponding alarm lights flash, which can more intuitively prompt the anti-slip mats 4 with abnormal positions.

[0045] In summary, by arranging the anti-slip pad 4 on the top surface of the anti-slip plate 3, it can not only meet the anti-slip effect of underground workers when walking upright in the higher pedestrian space 6, but also prevent collisions and bumps when squatting or even crawling in the lower pedestrian space 6. At the same time, it takes into account the activities of underground workers in the pedestrian space 6 in two states, and effectively ensures the safety of underground workers in the pedestrian space 6.

[0046] In addition to the above anti-skid device, the present invention further provides a hydraulic support including the anti-skid device disclosed in the above embodiment. For the structures of other parts of the hydraulic support, please refer to the prior art and will not be described in detail herein.

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

[0048] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the method and core ideas of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the scope of protection of the present invention.

Claims

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

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

3. The anti-slip device according to claim 2, characterized in that: The bolt fixing seat comprises: a welding portion and a clamping portion which are integrally arranged, the welding portion is welded to the sealing plate, and the clamping portion is clamped to the fixing bolt.

4. The anti-slip device according to claim 3, characterized in that: An assembly groove is arranged at the position of the clamping portion, and the assembly groove is used to accommodate the head of the fixing bolt. A U-shaped hole is arranged on the top surface of the clamping portion, and the U-shaped hole is used to pass the fixing bolt.

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 end surface of the fixing bolt is lower than the top surface of the anti-slip mat.

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

7. The anti-slip device according to claim 6, characterized in that: A rivet is arranged at the position of the step hole, and the rivet is connected to the step hole to seal the step hole.

8. The anti-slip device according to claim 7, characterized in that: The anti-slip mat and the rivets are both 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 a plurality of crocodile-mouth protrusions, and the bottom surface of the anti-slip mat is arrayed with a plurality of limiting slots, each of which is connected to one of the crocodile-mouth protrusions.

10. A hydraulic support, characterized in that: The invention comprises the anti-slip device according to any one of claims 1 to 9.

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