Anti-tilting device and hydraulic support

Abstract

The utility model relates to the technical field of hydraulic supports, in particular to an anti-falling device and a hydraulic support. The anti-falling device is used for being installed on a hydraulic support and comprises a hand guard assembly, the hand guard assembly is fixedly arranged on a main rib, the height of the hand guard assembly is larger than that of the main rib, and a reserved gap is formed between the hand guard assembly and a stand column; the side, facing the stand column, of the hand guard assembly is provided with a guide face, and the guide face extends towards the interior of the base body along the end in the first direction. The hand guard assembly is fixedly arranged on the main reinforcement of the hydraulic support, and the height of the hand guard assembly is larger than that of the main reinforcement, so that on the basis of the original lower main reinforcement of the supporting base, the enclosure height of the stand column extends upwards, and the defects of a shallow cavity structure are overcome.

Description

Technical Field

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

[0002] The uprights are vertically installed between the top beam and the base of the hydraulic support, rising under hydraulic pressure to directly support the roof and create a safe support space for the coal face. In medium-thick coal seam supports, the higher base main reinforcement and upright pressure plate form an effective enclosure structure, significantly enhancing the uprights' anti-tipping stability. However, in thin coal seam supports, limited by the overall structural height, the height of the base main reinforcement and upright pressure plate is lower, resulting in a shallow installation space surrounding the uprights. This shallow cavity structure significantly weakens the lateral constraint and protection of the base on the uprights, thus posing a higher risk of tipping when the uprights are subjected to eccentric loads. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0004] Therefore, this utility model provides an anti-tipping device, which extends the protection height of the column upward based on the main rib of the original low support base, making up for the shortcomings of the shallow cavity structure.

[0005] This utility model also provides a hydraulic support.

[0006] According to a first aspect of the present invention, an anti-tipping device is used to be installed on a hydraulic support. The hydraulic support includes a base body and a column. The column is disposed inside the base body, and the upper end face of the base body is provided with a main rib, which is disposed outside the column.

[0007] Anti-tipping devices include:

[0008] The hand guard assembly is fixedly installed on the main reinforcement. The height of the hand guard assembly is higher than the height of the main reinforcement, and a reserved gap is provided between the hand guard assembly and the column.

[0009] The hand guard assembly has a guide surface on the side facing the column. The guide surface extends into the base body from the end of the first direction. The angle between the first direction and the length direction of the main rib is less than 90°.

[0010] Optionally, the hand guard component includes:

[0011] The connecting part connects to the main reinforcement bar;

[0012] Two arc-shaped parts are arranged along a first direction. One of the arc-shaped parts is fixedly connected to one end of the connecting part, and the other arc-shaped part is fixedly connected to the other end of the connecting part. The end of the arc-shaped part away from the connecting part extends into the base body.

[0013] Optionally, the anti-tipping device also includes:

[0014] The support component is fixedly installed on the main reinforcement at one end, and the handrail component is located at the end of the support component away from the main reinforcement.

[0015] Optionally, the support components include:

[0016] The main support board is fixedly installed on the main rib and extends away from the base body. The hand guard component is located at the end of the main support board away from the main rib.

[0017] A locking component is located between the support motherboard and the handguard assembly to fix the support motherboard and the handguard assembly relatively in place.

[0018] Optionally, the supporting motherboard includes:

[0019] The installation part is installed on the main reinforcement;

[0020] The support part is located at the end of the mounting part away from the base body, and the support part is parallel to the column; the hand guard assembly is located at the end of the support part away from the mounting part, and the longitudinal central axis of the connecting part is parallel to the column.

[0021] Optionally, the locking component includes:

[0022] Bolt head, embedded in the hand guard assembly;

[0023] The bolt body is fixedly connected to the bolt head at one end, and the bolt body passes through the hand guard assembly and the support main board in sequence.

[0024] A nut is a threaded connection to the end of a bolt body furthest from the bolt head.

[0025] The bolt head is located on the side of the handguard assembly facing the column and is embedded in the handguard assembly, while the nut is located on the side of the support assembly away from the column.

[0026] Optionally, the locking component also includes:

[0027] A flat washer is fitted onto the bolt body and located between the support assembly and the nut;

[0028] A spring washer is fitted onto the bolt body and positioned between the flat washer and the nut.

[0029] Optionally, the anti-tipping device also includes:

[0030] A pad is placed between the handguard assembly and the support assembly.

[0031] Optionally, the anti-tipping device also includes:

[0032] The mounting groove is fixedly installed on the main rib, and the support component is inserted into the mounting groove.

[0033] A pin passes through the mounting groove and the support assembly to secure the support assembly to the mounting groove.

[0034] A hydraulic support according to a second aspect of the present invention includes an anti-tipping device as described in the first aspect or various embodiments.

[0035] One of the above technical solutions has at least the following advantages or beneficial effects:

[0036] According to one embodiment of the present invention, an anti-tipping device includes a hand guard assembly. The hand guard assembly is fixedly mounted on the main rib of the hydraulic support, and its height is higher than that of the main rib. This extends the height of the support for the column upwards from the original low-height main rib of the support base, compensating for the shortcomings of the shallow cavity structure. A guide surface is provided on the side of the hand guard assembly facing the column. When the column is subjected to an eccentric load and tends to tilt outwards from the base body, the column will first contact the guide surface of the hand guard assembly. The guide surface can generate a guiding force and supporting force pointing inwards from the tilted column, effectively preventing the column from continuing to tilt outwards.

[0037] The hydraulic support provided in this embodiment of the utility model is equipped with the anti-tipping device mentioned above. Since the anti-tipping device has the above-mentioned technical effects, the hydraulic support equipped with the anti-tipping device should also have the corresponding technical effects. Attached Figure Description

[0038] Figure 1 This diagram shows a structural schematic of an anti-tipping device according to an embodiment of the present invention at one angle;

[0039] Figure 2 This invention provides a schematic diagram of the anti-tipping device from another angle according to one embodiment of the present invention.

[0040] Figure 3 A schematic diagram of the hand guard assembly according to an embodiment of the present invention is shown;

[0041] Figure 4 This invention provides a schematic diagram of the structure of a supporting motherboard according to an embodiment of the present invention.

[0042] Figure 5 This diagram shows a structural schematic of an embodiment of the present invention without the hand guard assembly installed.

[0043] Figure 6 A schematic diagram of a structure with a hydraulic support and an anti-tipping device according to an embodiment of the present invention is shown.

[0044] Explanation of reference numerals in the attached figures

[0045] 100 - Hydraulic support; 200 - Anti-tipping device;

[0046] 110 - Base body, 120 - Main reinforcement, 130 - Column;

[0047] 210 - Hand guard assembly, 220 - Support assembly, 230 - Pad, 240 - Mounting groove, 250 - Pin;

[0048] 211-Connecting part, 212-Arc-shaped part;

[0049] 221 - Support motherboard; 222 - Locking components;

[0050] 2211 - Installation part, 2212 - Support part;

[0051] 2221 - Bolt head, 2222 - Bolt body, 2223 - Nut, 2224 - Flat washer, 2225 - Spring washer. Detailed Implementation

[0052] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0053] The following describes, with reference to the accompanying drawings, some embodiments of the anti-tipping device and hydraulic support provided by the present invention.

[0054] See Figures 1 to 6 The first aspect of this utility model provides an anti-tipping device 200 for installation on a hydraulic support 100. The hydraulic support 100 includes a base body 110 and a column 130. The column 130 is disposed inside the base body 110. The upper end face of the base body 110 is provided with a main rib 120, and the main rib 120 is disposed outside the column 130.

[0055] The anti-tipping device 200 includes a hand guard assembly 210, which is fixedly mounted on the main rib 120. The height of the hand guard assembly 210 is higher than that of the main rib 120, and a reserved gap is provided between the hand guard assembly 210 and the column 130. A guide surface is provided on the side of the hand guard assembly 210 facing the column 130. The end of the guide surface extends into the interior of the base body 110 along a first direction, and the angle between the first direction and the length direction of the main rib 120 is less than 90°.

[0056] The anti-tipping device 200 provided in this embodiment includes a hand guard assembly 210, which is fixedly mounted on the main rib 120 of the hydraulic support 100. The hand guard assembly 210 is higher than the main rib 120, thus extending the height of the support base above the originally low main rib 120 to increase the enclosure height of the column 130, compensating for the shortcomings of the shallow cavity structure. A reserved gap is provided between the hand guard assembly 210 and the column 130. This reserved gap provides necessary space for the normal extension, contraction, and slight swaying of the column 130 during operation, avoiding mutual interference caused by rigid contact, and also allowing the hand guard assembly 210 to apply restraint in a timely manner when the column 130 experiences a significant displacement.

[0057] For example, the size of the reserved gap can be, but is not limited to, 5mm.

[0058] The handguard assembly 210 has a guide surface on the side facing the column 130. This guide surface extends into the base body 110 along a first direction, and the angle between the first direction and the length direction of the main rib 120 is less than 90°. When the column 130 is subjected to an eccentric load and tends to tilt outwards from the base body 110, the column 130 will first contact the guide surface of the handguard assembly 210. The guide surface can generate a guiding force and supporting force on the tilted column 130 pointing inwards from the base body 110, effectively preventing the column 130 from continuing to tilt outwards.

[0059] See Figures 1 to 3 , Figure 6 In some instances, the handguard assembly 210 includes a connecting portion 211 and two arcuate portions 212; the connecting portion 211 is connected to the main rib 120; the two arcuate portions 212 are along a first direction, one of the arcuate portions 212 is fixedly connected to one end of the connecting portion 211, and the other arcuate portion 212 is fixedly connected to the other end of the connecting portion 211, with the end of the arcuate portion 212 away from the connecting portion 211 extending into the base body 110.

[0060] In this technical solution, the handguard assembly 210 includes a connecting portion 211 and two arc-shaped portions 212. The connecting portion 211 serves as the basic structure for connecting the handguard assembly 210 to the main rib 120, stably fixing the entire handguard assembly 210 to the main rib 120 and ensuring its positional stability under possible displacement of the column 130, thus supporting the column 130. One of the two arc-shaped portions 212 is fixedly connected to one end of the connecting portion 211, and the other arc-shaped portion 212 is fixedly connected to the other end of the connecting portion 211. The end of the arc-shaped portion 212 away from the connecting portion 211 extends into the base body 110, thereby forming a U-shaped semi-enclosed structure with the connecting portion 211, providing semi-enclosed protection for the column 130. Among them, the arc-shaped surface extending towards the interior of the base body 110 can guide the column 130 to tilt inward towards the base, and can guide the column 130 to the inside when it tilts, actively preventing the column 130 from tilting outward and injuring the staff, thus combining risk control with personal safety protection.

[0061] See Figures 1 to 6 In some instances, the anti-tipping device 200 also includes a support component 220; one end of the support component 220 is fixedly installed on the main rib 120, and the hand guard component 210 is disposed at the end of the support component 220 away from the main rib 120.

[0062] In this technical solution, one end of the support component 220 is fixedly installed on the main rib 120, providing a stable installation foundation and height support for the handguard component 210. This allows the handguard component 210 to be stably positioned at a preset height above the main rib 120, thereby fulfilling its anti-tipping function for the column 130. Furthermore, by installing the protective device on the main rib 120 through the support component 220, the height position of the protective device can be selected according to actual needs, enhancing the flexibility of the anti-tipping device 200.

[0063] See Figures 1 to 6 In some instances, the support assembly 220 includes a support main board 221 and a locking assembly 222; the support main board 221 is fixedly mounted on the main rib 120 and extends away from the base body 110, and the hand guard assembly 210 is disposed at the end of the support main board 221 away from the main rib 120; the locking assembly 222 is disposed between the support main board 221 and the hand guard assembly 210, and is used to fix the support main board 221 and the hand guard assembly 210 relative to each other.

[0064] In this technical solution, the support component 220 includes a support main board 221 and a locking component 222. The support main board 221 is fixedly installed on the main rib 120 and extends away from the base body 110, that is, extends higher than the main rib 120, providing upward extension support for the hand guard component 210, enabling the hand guard component 210 to reach the required protective height. The locking component 222 is disposed between the support main board 221 and the hand guard component 210, and the two are fixed by a gas connection, ensuring that the hand guard component 210 will not undergo relative displacement or loosening with the support main board 221 during the impact of the column 130, thereby ensuring the structural stability of the entire anti-tipping device 200 and ensuring the reliability of the protection.

[0065] See Figures 1 to 6 In some instances, the supporting main board 221 includes a mounting portion 2211 and a supporting portion 2212; the mounting portion 2211 is mounted on the main rib 120; the supporting portion 2212 is located at the end of the mounting portion 2211 away from the base body 110, and the supporting portion 2212 is parallel to the column 130; the hand guard assembly 210 is located at the end of the supporting portion 2212 away from the mounting portion 2211, and the longitudinal central axis of the connecting portion 211 is parallel to the column 130.

[0066] In this technical solution, the supporting main board 221 includes a mounting part 2211 and a supporting part 2212. The mounting part 2211 is the part that connects the supporting main board 221 to the main rib 120. For example, it can be fixed by welding or other methods to provide a solid foundation for the entire supporting main board 221. The supporting part 2212 is located at the end of the mounting part 2211 away from the base, that is, the part that extends upward. The supporting part 2212 is parallel to the column 130, which ensures that the hand guard assembly 210 can accurately act on the guide surface and the arc-shaped part 212 in the direction in which the column 130 may tilt. At the same time, the longitudinal central axis of the connecting part 211 is parallel to the column 130, which further ensures that the semi-enclosed structure of the hand guard assembly 210 relative to the column 130 is symmetrical and centered. This ensures that when the column 130 shifts, the distance between the arc-shaped part 212 on both sides and the column 130 is the same, avoiding the column 130 from tilting due to uneven force under inertia caused by different distances.

[0067] See Figures 1 to 6In some instances, the locking assembly 222 includes a bolt head 2221, a bolt body 2222, and a nut 2223; the bolt head 2221 is embedded in the handguard assembly 210; one end of the bolt body 2222 is fixedly connected to the bolt head 2221, and the bolt body 2222 passes through the handguard assembly 210 and the support main plate 221 in sequence; the nut 2223 is threadedly connected to the end of the bolt body 2222 away from the bolt head 2221; wherein, the bolt head 2221 is located on the side of the handguard assembly 210 facing the column 130 and is embedded in the handguard assembly 210, and the nut 2223 is located on the side of the support assembly 220 away from the column 130.

[0068] In this technical solution, the locking component 222 secures the hand guard assembly 210 to the support main board 221 via bolts. With the locking component 222 securing the hand guard assembly 210 to the support main board 221, the bolt head 2221 is embedded within the hand guard assembly 210 and located on the side of the hand guard assembly 210 facing the column 130. This prevents the bolt head 2221 from protruding from the guide surface of the hand guard assembly 210, thus preventing additional friction or damage to the column 130 when it contacts the hand guard assembly 210 due to the protrusion of the bolt head 2221. After the bolt body 2222 passes through the hand guard assembly 210 and the support main board 221, it is threaded and tightened with a nut 2223 on the side of the support assembly 220 away from the column 130. This allows the entire connection process to be completed from the side away from the column 130, facilitating subsequent maintenance and disassembly. The tightening force of the nut 2223 can tightly clamp and fix the hand guard assembly 210 to the support main board 221, ensuring the structural stability of the hand guard assembly 210.

[0069] For example, the locking components 222 include, but are not limited to, at least two sets, and are equidistantly disposed between the support motherboard 221 and the handguard component 210 along the first direction, so that the connection between the support motherboard 221 and the handguard component 210 is more secure.

[0070] See Figures 1 to 6 In some instances, the locking assembly 222 further includes a flat washer 2224 and a spring washer 2225; the flat washer 2224 is fitted onto the bolt body 2222 and is located between the support assembly 220 and the nut 2223; the spring washer 2225 is fitted onto the bolt body 2222 and is located between the flat washer 2224 and the nut 2223.

[0071] In this technical solution, the locking component 222 also includes a flat washer 2224 and a spring washer 2225. The flat washer 2224 is placed between the support component 220 and the nut 2223, which can increase the contact area between the nut 2223 and the support component 220, avoid the nut 2223 from causing indentations or damage to the surface of the support component 220 during the tightening process, and at the same time disperse the pressure applied by the nut 2223, thus protecting the structural integrity of the support component 220.

[0072] Spring washer 2225 is sleeved on bolt body 2222 and located between flat washer 2224 and nut 2223. Utilizing its elastic deformation characteristics, it generates continuous elastic tension after nut 2223 is tightened, effectively preventing nut 2223 from loosening due to vibration during operation of hydraulic support 100, ensuring long-term stable fastening effect of locking component 222, thereby ensuring the firmness of connection between hand guard component 210 and support main board 221.

[0073] See Figure 1 , Figure 2 and Figure 6 In some instances, the anti-tipping device 200 also includes a pad 230; the pad 230 is disposed between the handguard assembly 210 and the support assembly 220.

[0074] In this technical solution, the pad 230 is disposed between the hand guard assembly 210 and the support assembly 220. The pad 230 can adjust the reserved gap between the hand guard assembly 210 and the column 130. When it is found that the reserved gap deviates from the preset value during actual assembly, it can be adjusted by replacing the pad 230 with one of different thicknesses to ensure that the guide surface can play a timely role when the column 130 deviates, thereby ensuring the reliability of the anti-tipping device 200.

[0075] For example, the adjustable thickness of the pad 230 can effectively compensate for dimensional errors during the manufacturing and assembly of the hand guard assembly 210 and the support assembly 220, ensuring that the optimal working gap of approximately 5 mm can be precisely maintained between the hand guard assembly 210 and the column 130.

[0076] See Figure 5 and Figure 6 In some instances, the anti-tipping device 200 also includes a mounting groove 240 and a pin 250; the mounting groove 240 is fixedly disposed on the main rib 120, and the support assembly 220 is inserted into the mounting groove 240; the pin 250 passes through the mounting groove 240 and the support assembly 220 to fix the support assembly 220 and the mounting groove 240 to each other.

[0077] In this technical solution, by fixing an installation groove 240 on the main rib 120, a precise installation space is provided for the support component 220. Inserting the support component 220 into the installation groove 240 allows for rapid initial positioning of both components, ensuring accurate installation of the support component 220 on the main rib 120 and avoiding potential positional deviations in traditional installation methods. The support component 220 inserted into the installation groove 240 is relatively fixed by a pin 250, ensuring that the support component 220 will not shift relative to the main rib 120 if the column 130 may tip over, thus providing stable bottom support for the entire anti-tipping device 200.

[0078] One embodiment of the present invention provides a hydraulic support 100, which includes the anti-tipping device 200 in any of the above embodiments.

[0079] Since the hydraulic support 100 of this embodiment includes any of the anti-tipping devices 200 in the first aspect described above, it has the beneficial effects of any of the above embodiments, which will not be repeated here.

[0080] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0081] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0082] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0083] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "exemplary embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0084] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An anti-tipping device, characterized in that, For installation on a hydraulic support, the hydraulic support includes a base body and a column, the column is disposed inside the base body, the upper end face of the base body is provided with a main rib, and the main rib is disposed outside the column; The anti-tipping device includes: A hand guard assembly is fixedly installed on the main rib, the height of the hand guard assembly is higher than the height of the main rib, and a reserved gap is provided between the hand guard assembly and the column; The handguard assembly has a guide surface on the side facing the column, and the end of the guide surface extends into the interior of the base body along a first direction, with the angle between the first direction and the length direction of the main rib being less than 90°.

2. The anti-tipping device according to claim 1, characterized in that, The hand guard component includes: The connecting part is connected to the main reinforcing bar; Two arc-shaped portions are arranged along a first direction. One of the arc-shaped portions is fixedly connected to one end of the connecting portion, and the other arc-shaped portion is fixedly connected to the other end of the connecting portion. The end of the arc-shaped portion away from the connecting portion extends into the interior of the base body.

3. The anti-tipping device according to claim 2, characterized in that, Also includes: The support component is fixedly installed on the main rib at one end, and the hand guard component is located at the end of the support component away from the main rib.

4. The anti-tipping device according to claim 3, characterized in that, The support components include: The support board is fixedly installed on the main rib and extends away from the base body. The hand guard assembly is located at the end of the support board away from the main rib. A locking component is disposed between the support motherboard and the handguard assembly to fix the support motherboard and the handguard assembly relative to each other.

5. The anti-tipping device according to claim 4, characterized in that, The supporting motherboard includes: The mounting part is installed on the main rib; A support portion is disposed at the end of the mounting portion away from the base body, and the support portion is parallel to the column; the hand guard assembly is disposed at the end of the support portion away from the mounting portion, and the longitudinal central axis of the connecting portion is parallel to the column.

6. The anti-tipping device according to claim 4, characterized in that, The locking component includes: The bolt head is embedded within the hand guard assembly; The bolt body has one end fixedly connected to the bolt head, and the bolt body passes through the hand guard assembly and the support main board in sequence; A nut, threadedly connected to the end of the bolt body away from the bolt head; The bolt head is located on the side of the handguard assembly facing the column and is embedded in the handguard assembly, while the nut is located on the side of the support assembly away from the column.

7. The anti-tipping device according to claim 6, characterized in that, The locking component also includes: A flat washer is fitted onto the bolt body and located between the support assembly and the nut; A spring washer is fitted onto the bolt body and located between the flat washer and the nut.

8. The anti-tipping device according to claim 3, characterized in that: Also includes: A pad is disposed between the hand guard assembly and the support assembly.

9. The anti-tipping device according to claim 3, characterized in that, Also includes: The mounting groove is fixedly set on the main rib, and the support component is inserted into the mounting groove; A pin passes through the mounting groove and the support assembly to secure the support assembly to the mounting groove.

10. A hydraulic support, characterized in that, Includes the anti-tipping device as described in any one of claims 1 to 9.

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