Stabilizing mechanism for hydraulic support and hydraulic support

Abstract

The application discloses a stabilizing mechanism for hydraulic support and the hydraulic support, and comprises at least one telescopic rod group and N-1 connecting piece groups. The telescopic rod group comprises N telescopic members connected in sequence, one of the two adjacent telescopic members forms an outer telescopic member, and the other forms an inner telescopic member. The inner telescopic member is inserted into and slidingly connected with the outer telescopic member. The adjacent outer telescopic member and inner telescopic member have a contraction length and an extension length. The connecting piece group is connected between the adjacent outer telescopic member and inner telescopic member. The connecting piece group is deformable, and the length of each connecting piece group is not greater than the upper limit of the difference between the extension length and the contraction length of the corresponding adjacent outer telescopic member and inner telescopic member. The stabilizing mechanism for the hydraulic support improves the situation that the gap between the telescopic sleeves is large, avoids the problem that the telescopic sleeves are easily inclined, improves the situation that the torque increases when the load is unbalanced, avoids the problem that the stress between the components deteriorates, and facilitates the transportation, installation and maintenance in the well.

Description

Technical Field

[0001] This invention relates to the field of tunnel support technology, specifically to a stabilizing mechanism for a hydraulic support and a hydraulic support. Background Technology

[0002] Hydraulic supports are a type of support equipment used to control mine pressure in coal mining faces. Current hydraulic supports typically include components such as a top beam, base, column, and stabilization mechanism. The column and stabilization mechanism are installed between the top beam and the base. The column is used to lift the top beam, while the stabilization mechanism is mainly used to constrain the movement trajectory of the top beam and bear eccentric loads.

[0003] In the prior art, stabilization mechanisms include four-bar stabilization mechanisms, telescopic guide rod mechanisms, etc. The four-bar stabilization mechanism is usually formed by a shield beam, a base, a front link and a rear link, while the telescopic guide rod mechanism is formed by a telescopic rod and at least one telescopic sleeve.

[0004] Taking telescopic guide rod mechanisms as an example, existing telescopic guide rod mechanisms are typically pin-type limiting mechanisms. This means that the internal telescopic rod or sleeve has a groove, and the external telescopic sleeve has a pin. The pin guides and engages within the groove, and the limiting engagement of the pin and groove constrains the telescopic guide rod mechanism. However, this method of slotting the telescopic rod or sleeve reduces the overall structural strength, thereby reducing overall reliability and affecting service life. Secondly, due to the anti-rotation effect of the pin and groove, when the telescopic guide rod mechanism is subjected to lateral forces or eccentric loads, it cannot offset the adverse effects of complex forces through rotation.

[0005] To avoid the above problems, some related technologies design the telescopic guide rod mechanism as a boss-type limiting mechanism. That is, an annular boss is provided on each of the two adjacent telescopic sleeves. The annular boss is located between the two telescopic sleeves. When the two telescopic sleeves slide relative to each other, the limiting constraint of the telescopic sleeves is achieved by the blocking of the two annular bosses.

[0006] However, the above-mentioned boss-type limiting mechanism still has the following problems: ① The gap between two adjacent telescopic sleeves is large, which makes the telescopic sleeves prone to skewing and poor guiding effect; ② The existence of gaps will increase the torque generated when subjected to eccentric load, which will easily lead to the deterioration of the stress condition of the component; ③ The annular boss is manufactured by welding on the next telescopic sleeve after the previous telescopic sleeve or telescopic rod is installed. Therefore, once installed, it cannot be disassembled and repaired normally. After damage, it can only be disassembled by destructive measures. Summary of the Invention

[0007] The present invention aims to at least partially solve one of the technical problems in the related art.

[0008] To address this issue, this invention provides a stabilizing mechanism for hydraulic supports. This mechanism improves upon the problem of large gaps between telescopic sleeves, preventing easy skewing and enhancing the guiding effect. Secondly, it also mitigates the problem of increased torque under eccentric loading, preventing deterioration of stress conditions between components. Furthermore, it facilitates assembly and disassembly, thereby simplifying downhole transportation, installation, and maintenance.

[0009] This invention also proposes a hydraulic support including the aforementioned stabilizing mechanism.

[0010] The stabilizing mechanism for the hydraulic support in this embodiment of the invention includes:

[0011] At least one telescopic rod assembly, the telescopic rod assembly comprising N telescopic members connected in sequence, one of two adjacent telescopic members forming an outer telescopic member and the other forming an inner telescopic member, the inner telescopic member being inserted into and slidingly fitted within the outer telescopic member, and adjacent outer telescopic members and inner telescopic members having a contracted length when contracted and an extended length when extended.

[0012] There are N-1 connector groups, each of which is connected one-to-one between adjacent outer and inner telescopic members. One end of each connector group is connected to the end of the inner telescopic member located outside the outer telescopic member, and the other end of each connector group is connected to the outer wall surface of the outer telescopic member. The connector groups are deformable, and the length of each connector group is not greater than the upper limit of the difference between the extension length and the contraction length of the corresponding adjacent outer and inner telescopic members.

[0013] The stabilizing mechanism of the hydraulic support in this embodiment of the invention improves the situation of large gaps between the telescopic sleeves, avoiding the problem of easy skewing and improving the guiding effect. Secondly, it also improves the situation of increased torque under eccentric load, avoiding the problem of deterioration of the stress between components. In addition, it facilitates assembly and disassembly, thereby facilitating downhole transportation, installation and maintenance.

[0014] In some embodiments, the radial dimensions of the N telescopic members decrease sequentially along the axial direction of the telescopic rod assembly, and the end with the smaller radial dimension of the telescopic rod assembly is used to connect to the top plate of the hydraulic support, while the end with the larger radial dimension of the telescopic rod assembly is used to connect to the base of the hydraulic support.

[0015] In some embodiments, the outer periphery of the inner telescopic member is provided with a first fixing member, the outer periphery of the outer telescopic member is provided with a second fixing member, one end of the connecting member group is connected to the first fixing member, and the other end of the connecting member group is connected to the second fixing member.

[0016] In some embodiments, the first fixing member and the second fixing member are both fixing rings, and the connecting member group is hooked and connected to both the first fixing member and the second fixing member;

[0017] And / or, the length of the second fastener in the radial direction of the telescopic rod assembly is not less than the length of the first fastener in the radial direction of the telescopic rod assembly.

[0018] In some embodiments, the connector group includes at least two connector sub-components, each of which is connected between adjacent outer telescopic members and inner telescopic members, and the at least two connector sub-components are arranged at circumferential intervals along the telescopic rod group.

[0019] In some embodiments, as the telescopic rod assembly extends, the connecting sub-members are arranged to extend outward at an angle from top to bottom such that the cross-sectional area of ​​the space enclosed by all the connecting sub-members of the same connecting assembly gradually increases from top to bottom.

[0020] In some embodiments, along the top-to-bottom direction, the tensile strength of the upper connector group of two adjacent connector groups is not less than the tensile strength of the lower connector group.

[0021] In some embodiments, the inner telescopic member is circumferentially rotatable relative to the outer telescopic member; and / or, the connecting member assembly includes a chain or wire rope; and / or, the length of the connecting member assembly is adjustable.

[0022] The hydraulic support of this invention includes the stabilizing mechanism as described in any of the above embodiments.

[0023] In some embodiments, the hydraulic support includes a column, a top beam, and a base, wherein the column and the stabilizing mechanism are installed between the top beam and the base, and the overall length dimension of the N-1 sets of connectors in the vertical direction is not less than the upper limit of the difference between the extended length and the retracted length of the column. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the stabilizing mechanism according to an embodiment of the present invention. Figure 1 .

[0025] Figure 2 This is a schematic diagram of the stabilizing mechanism according to an embodiment of the present invention. Figure 2 .

[0026] Figure 3 This is a schematic diagram of the application of the stabilizing mechanism of this invention to a hydraulic support.

[0027] Figure 4This is a schematic diagram of the hydraulic support in the retracted state according to an embodiment of the present invention.

[0028] Figure 5 This is a schematic diagram of the hydraulic support during the lifting process according to an embodiment of the present invention. Figure 1 .

[0029] Figure 6 This is a schematic diagram of the hydraulic support during the lifting process according to an embodiment of the present invention. Figure 2 .

[0030] Figure 7 This is a side view of the hydraulic support after it has been fully raised according to an embodiment of the present invention.

[0031] Figure 8 This is a schematic diagram of the rear side of the hydraulic support after it has been fully raised according to an embodiment of the present invention.

[0032] Figure 9 This is a top view schematic diagram of the hydraulic support according to an embodiment of the present invention.

[0033] Figure label:

[0034] Stable institutions 100;

[0035] Telescopic rod assembly 1; inner telescopic component 11; first fixing component 111; outer telescopic component 12; second fixing component 121;

[0036] Connector assembly 2; Connector sub-assembly 21;

[0037] Top beam 200;

[0038] Column 300;

[0039] Base 400. Detailed Implementation

[0040] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0041] like Figure 1 and Figure 2 As shown, the hydraulic support stabilization mechanism 100 (hereinafter referred to as stabilization mechanism 100) of this embodiment of the invention includes at least one telescopic rod group 1 and N-1 connecting member groups 2.

[0042] The stabilizing mechanism 100 may include only one telescopic rod group 1. In some other embodiments, it may also include two, three, four or more telescopic rod groups 1. When there are multiple telescopic rod groups 1, the multiple telescopic rod groups 1 can extend along the vertical direction, and the multiple telescopic rod groups 1 can be distributed in a matrix shape.

[0043] The telescopic rod assembly 1 includes N telescopic members connected in sequence. One of two adjacent telescopic members forms an outer telescopic member 12 and the other forms an inner telescopic member 11. The inner telescopic member 11 is inserted into and slidably fitted into the outer telescopic member 12. The adjacent outer telescopic member 12 and inner telescopic member 11 have a contracted length when contracted and an extended length when extended.

[0044] For example, such as Figure 1 and Figure 2 As shown, the telescopic rod assembly 1 may include three telescopic components, which can be sequentially nested along the vertical direction. The uppermost telescopic component can be a rod-shaped structure, while the two lower telescopic components can be tubular structures. For ease of description, the uppermost telescopic component will be referred to as the upper telescopic component, and the two lower telescopic components will be referred to as the middle telescopic component and the lower telescopic component, respectively.

[0045] The upper telescopic component is inserted into the middle telescopic component, and the upper and middle telescopic components can slide relative to each other, thereby enabling the overall length adjustment of the telescopic rod assembly 1. Similarly, the middle telescopic component is inserted into the lower telescopic component, and the middle and lower telescopic components can slide relative to each other, thereby also enabling the overall length adjustment of the telescopic rod assembly 1.

[0046] It should be noted that the contraction length of two adjacent telescopic components can be regarded as the shortest contraction dimension of the two telescopic components after they are fully contracted, and the extension length of two adjacent telescopic components can be regarded as the longest extension dimension of the two telescopic components after they are fully extended.

[0047] N-1 connector groups 2 are connected one-to-one between adjacent outer telescopic members 12 and inner telescopic members 11. One end of each connector group 2 is connected to the end of the inner telescopic member 11 located outside the outer telescopic member 12, and the other end of each connector group 2 is connected to the outer wall surface of the outer telescopic member 12. The connector groups 2 are deformable, and the length dimension of each connector group 2 is not greater than the upper limit of the difference between the extension length and the contraction length of the corresponding adjacent outer telescopic member 12 and inner telescopic member 11.

[0048] Specifically, such as Figure 3 As shown, connector group 2 can be a chain, or it can be a steel wire rope, rope, or other connector group 2 with high structural strength. The number of connector groups 2 is one less than the number of telescopic components. For example, when telescopic rod group 1 includes three telescopic components, the number of connector groups 2 is two. For ease of description, the upper connector group 2 will be referred to as the upper connector group, and the lower connector group 2 will be referred to as the lower connector group.

[0049] The end of each connector group 2 can be connected to the outer end of the corresponding telescopic member (that is, the end located on the outside of the outer telescopic member 12). Figure 1 and Figure 2 The upper part of the upper connector group can be connected to the top of the upper telescopic part, the lower part of the upper connector group can be connected to the top of the middle telescopic part, the upper part of the lower connector group can be connected to the top of the middle telescopic part, and the lower part of the lower connector group can be connected to the top of the lower telescopic part.

[0050] Therefore, the connection between the connector group 2 and the telescopic member can be avoided from being blocked or interfered with when the inner telescopic member 11 retracts to the outer telescopic member 12 due to the protrusion of the telescopic member surface, thus ensuring that the telescopic rod group 1 has a large range of contraction and extension dimensions.

[0051] It should be noted that when the end of each connector group 2 is connected to the outer end of the corresponding telescopic member, the overall length of the connector group 2 can be approximately equal to the difference between the overall extension length and retraction length formed by the corresponding adjacent inner telescopic member 11 and outer telescopic member 12. Therefore, by limiting the connector group 2, on the one hand, it can ensure that the inner telescopic member 11 and outer telescopic member 12 can maintain a large extension range, and on the other hand, it can prevent the inner telescopic member 11 from detaching from the outer telescopic member 12. In some other embodiments, the length of the connector group 2 can also be less than the difference between the corresponding extension length and retraction length. In this case, the extension range of the adjacent inner telescopic member 11 and outer telescopic member 12 will be limited by the connector group 2, that is, the inner telescopic member 11 and outer telescopic member 12 cannot extend to their maximum extension size.

[0052] The stabilizing mechanism 100 of this invention is mainly applied to hydraulic supports, and the stabilizing mechanism 100 can be installed between the top beam 200 and the base 400 of the hydraulic support. In the initial position, such as Figure 4 As shown, the hydraulic support column 300 retracts to its shortest length. At this time, the stabilizing mechanism 100 also retracts to its shortest length. Each inner telescopic component 11 retracts into the corresponding outer telescopic component 12, and each connecting component group 2 of the stabilizing mechanism 100 is in a relaxed state.

[0053] When the column 300 extends and pushes upward against the top beam 200, taking the telescopic rod assembly 1, which includes three telescopic components, as an example, Figure 5 As shown, the upper telescopic component, driven by the top beam 200, will first slide upward relative to the middle telescopic component, thus achieving the extension of both the upper and middle telescopic components. During the sliding process of the upper telescopic component, the upper connecting assembly will gradually be straightened. When the upper connecting assembly is taut and the upper telescopic component continues to move upward, under the pulling force of the upper connecting assembly, the middle telescopic component will move upward synchronously with the upper telescopic component, as shown... Figure 6 As shown, when the lower connecting assembly is gradually straightened and finally tightened, the stabilizing mechanism 100 is fully extended, specifically as follows: Figure 7 and Figure 8As shown.

[0054] The hydraulic support stabilizing mechanism 100 of this embodiment improves the situation of large gap between the telescopic sleeves. A smaller gap can be used between the inner telescopic member 11 and the outer telescopic member 12, thereby enhancing the fit and limiting of the inner telescopic member 11 and the outer telescopic member 12, avoiding the problem of easy skewing due to large gap, and improving the guiding effect.

[0055] Secondly, by improving the problem of easy skewing, the issue of excessively long lever arms caused by skewing due to off-center loading is avoided, thus improving the problem of large torque and preventing the deterioration of the stress conditions between components. Both the inner telescopic component 11 and the outer telescopic component 12 can be directly assembled by plugging them in. The external connecting component group 2 will not interfere with the assembly and disassembly of the inner telescopic component 11 and the outer telescopic component 12, thereby facilitating assembly and disassembly and providing convenience for downhole transportation, installation and maintenance.

[0056] In addition, the stabilizing mechanism of this invention also avoids the need for slotting on the telescopic component in the pin-type limiting mechanism, thereby avoiding the problem of reduced strength of the telescopic component caused by slotting, and also avoiding the problem of poor torsional performance of the pin-type limiting mechanism.

[0057] In some embodiments, the radial dimensions of the N telescopic members decrease sequentially along the axial direction of the telescopic rod assembly 1, and the end with the smaller radial dimension of the telescopic rod assembly 1 is used to connect to the top plate of the hydraulic support, while the end with the larger radial dimension of the telescopic rod assembly 1 is used to connect to the base 400 of the hydraulic support.

[0058] For example, such as Figure 1 and Figure 2 As shown, the telescopic components are generally rectangular prisms. In some other embodiments, the telescopic components can also be cylindrical. Along the bottom-to-top direction, the radial dimension of the lower telescopic component is greater than that of the upper telescopic component. This facilitates the layered assembly of multiple telescopic components and lowers the center of gravity of the telescopic rod assembly 1, thereby improving the structural stability of the stabilizing mechanism 100.

[0059] In some embodiments, the outer periphery of the inner telescopic member 11 is provided with a first fixing member 111, the outer periphery of the outer telescopic member 12 is provided with a second fixing member 121, one end of the connecting member group 2 is connected to the first fixing member 111, and the other end of the connecting member group 2 is connected to the second fixing member 121.

[0060] Specifically, both the first fixing member 111 and the second fixing member 121 can be fixing rings. The first fixing member 111 can be fixed to the outer peripheral wall of the inner telescopic member 11 by means of integral molding, welding, or other methods. Similarly, the second fixing member 121 can be fixed to the outer peripheral wall of the outer telescopic member 12 by means of integral molding, welding, or other methods. The top end of each connector group 2 can be hooked to the corresponding first fixing member 111, and the bottom end of the connector group 2 can be hooked to the corresponding second fixing member 121, thereby simplifying the installation method of the connector group 2.

[0061] In some embodiments, the connector group 2 includes at least two connector sub-components 21, which are connected between adjacent outer telescopic members 12 and inner telescopic members 11, and the at least two connector sub-components 21 are arranged at circumferential intervals along the telescopic rod group 1.

[0062] For example, such as Figure 2 As shown, each connector group 2 may include two connector sub-components 21. One connector sub-component 21 of the same connector group 2 can be installed on the front side of the telescopic rod group 1, and the other connector sub-component 21 can be installed on the rear side of the telescopic rod group 1. The two connector sub-components 21 can be arranged in a mirror-symmetrical manner in the front-back direction. This ensures the stability of the overall structure and the overall structural strength of the connector group 2 when it is extended.

[0063] It is understood that in some other embodiments, each connector group 2 may also include three, four, five, six, or other numbers of connector sub-members 21. When there are multiple connector sub-members 21, the multiple connector sub-members 21 can be arranged at equal intervals along the circumference of the telescopic rod group 1.

[0064] In some embodiments, when the telescopic rod assembly 1 extends, the connecting sub-members 21 are arranged to extend outward at an angle from top to bottom, such that the cross-sectional area of ​​the space enclosed by all the connecting sub-members 21 of the same connecting member assembly 2 gradually increases from top to bottom. Specifically, as Figure 1 and Figure 2 As shown, when the telescopic rod assembly 1 is fully extended, multiple connecting parts 21 of the same connecting part assembly 2 can all be located on the same conical circumference. This makes the connecting parts 21 arranged at an angle, which is beneficial to improving the stability and tensile strength of the overall structure, and also beneficial to improving the anti-eccentric load performance of the telescopic rod assembly 1. That is, the connecting parts 21 have a component force effect in the horizontal direction, which can play a role in resisting the horizontal eccentric force.

[0065] Optionally, the length of the second fixing member 121 in the radial direction of the telescopic rod assembly 1 is not less than the length of the first fixing member 111 in the radial direction of the telescopic rod assembly 1. This facilitates the inclined arrangement of the connecting sub-member 21.

[0066] In some embodiments, along the top-to-bottom direction, the tensile strength of the upper connector group 2 of two adjacent connector groups 2 is not less than the tensile strength of the lower connector group 2.

[0067] As the top beam 200 is continuously raised, the uppermost connector group 2 will pull the weight of the largest number of telescopic components. Along the top-to-bottom direction, the number of telescopic components that the lower connector groups 2 need to pull decreases by one with each subsequent rise. Therefore, the higher tensile strength of the upper connector group 2 between any two adjacent connector groups 2 can better suit actual usage conditions, making the overall arrangement of the connector groups 2 more targeted and rational, fully meeting the needs of use, and also helping to reduce costs.

[0068] In some embodiments, the inner telescopic member 11 can rotate circumferentially relative to the outer telescopic member 12. For example, the telescopic members can be generally cylindrical, and the outer telescopic member 12 is provided with a mounting hole. The inner telescopic member 11 is inserted into the mounting hole of the outer telescopic member 12. The mounting hole is a circular hole. Thus, the inner telescopic member 11 can rotate circumferentially relative to the outer telescopic member 12. Therefore, when the telescopic rod assembly 1 is subjected to an eccentric load, the inner telescopic member 11 and the outer telescopic member 12 can offset part of the torque by rotating relative to each other, thereby reducing the adverse effects caused by complex forces.

[0069] In some embodiments, the length of the connector assembly 2 is adjustable. For example, the middle part of the connector assembly 2 may be provided with a threaded rod and a threaded sleeve, etc. In use, the length can be adjusted by the helical engagement of the threaded rod and the threaded sleeve, thereby adjusting the overall length of the connector assembly 2. Thus, the overall telescopic length of the telescopic rod assembly 1 can be adjusted, and the overall tension of the stabilizing mechanism 100 can also be corrected.

[0070] The hydraulic support according to an embodiment of the present invention is described below.

[0071] The hydraulic support in this embodiment of the invention includes a stabilizing mechanism, which can be the stabilizing mechanism 100 described in any of the above embodiments. The hydraulic support can be an advanced support hydraulic support in transport roadways and return air roadways, or it can be a hydraulic support used to support the roof at the working face or a hydraulic support used elsewhere.

[0072] In some embodiments, such as Figures 3 to 8As shown, the hydraulic support includes a column 300, a top beam 200, and a base 400. The column 300 and the stabilizing mechanism 100 are installed between the top beam 200 and the base 400. The overall length of the N-1 connecting parts 2 in the vertical direction is not less than the upper limit of the difference between the extended and retracted lengths of the column 300. This ensures that the maximum extension of the stabilizing mechanism 100 is not less than the maximum extension of the column 300, thus avoiding any constraint on the extension of the column 300 by the stabilizing mechanism 100 and guaranteeing the hydraulic support's support requirements for high mining elevations.

[0073] In some embodiments, the base 400 may be provided with a mounting groove, and the lowermost telescopic member of the telescopic rod assembly 1 of the stabilizing mechanism 100 may be fitted into the mounting groove, thereby enhancing the constraint and limiting effect on the stabilizing mechanism 100. The uppermost telescopic member of each telescopic rod assembly 1 may be connected and fixed to the top beam 200 by hinge.

[0074] In some embodiments, the stabilizing mechanism 100 may include multiple telescopic rod assemblies 1, for example, it may include two telescopic rod assemblies 1. The hydraulic support may include only one column 300, which may be located on the front side of the stabilizing mechanism 100 and may be located between the two telescopic rod assemblies 1. When the column 300 lifts the top beam 200, the two telescopic rod assemblies 1 will extend synchronously.

[0075] In some embodiments, such as Figure 9 As shown, the hydraulic support can be equipped with three columns 300, two of which can be located in front of the stabilizing mechanism, and the third column 300 can be located between the two telescopic rod groups 1 of the stabilizing mechanism (in the left-right direction). This ensures the load-bearing capacity of the hydraulic support while the triangular distribution of the three columns 300 further enhances the overall structural stability, fully meeting the needs of use.

[0076] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0077] Furthermore, 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0078] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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, an electrical connection, or a connection that allows communication between them; 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0079] In this invention, 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," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0080] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the 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.

[0081] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A stabilizing mechanism for a hydraulic support, characterized in that, include: At least one telescopic rod assembly, the telescopic rod assembly comprising N telescopic members connected in sequence, one of two adjacent telescopic members forming an outer telescopic member and the other forming an inner telescopic member, the inner telescopic member being inserted into and slidingly fitted within the outer telescopic member, and adjacent outer telescopic members and inner telescopic members having a contracted length when contracted and an extended length when extended. N-1 connector groups are connected one-to-one between adjacent outer telescopic members and inner telescopic members. One end of each connector group is connected to the end of the inner telescopic member located outside the outer telescopic member, and the other end of each connector group is connected to the outer wall surface of the outer telescopic member. The connector groups are deformable, and the length of each connector group is not greater than the upper limit of the difference between the extension length and the contraction length of the corresponding adjacent outer telescopic member and inner telescopic member. The connector group includes at least two connector sub-components, each of which is connected between adjacent outer telescopic members and inner telescopic members. The at least two connector sub-components are arranged at circumferential intervals along the telescopic rod group. When the telescopic rod group extends, the connector sub-components are arranged to extend outward at an angle from top to bottom so that the cross-sectional area of ​​the space enclosed by all the connector sub-components of the same connector group gradually increases from top to bottom.

2. The stabilizing mechanism for a hydraulic support according to claim 1, characterized in that, The radial dimensions of the N telescopic members decrease sequentially along the axial direction of the telescopic rod assembly, and the end with the smaller radial dimension of the telescopic rod assembly is used to connect to the top plate of the hydraulic support, while the end with the larger radial dimension of the telescopic rod assembly is used to connect to the base of the hydraulic support.

3. The stabilizing mechanism for a hydraulic support according to claim 1, characterized in that, The inner telescopic member is provided with a first fixing member on its outer periphery, and the outer telescopic member is provided with a second fixing member on its outer periphery. One end of the connecting member group is connected to the first fixing member, and the other end of the connecting member group is connected to the second fixing member.

4. The stabilizing mechanism for a hydraulic support according to claim 3, characterized in that, Both the first and second fixing members are fixing rings, and the connecting member assembly is hooked and connected to both the first and second fixing members; And / or, the length of the second fastener in the radial direction of the telescopic rod assembly is not less than the length of the first fastener in the radial direction of the telescopic rod assembly.

5. The stabilizing mechanism for a hydraulic support according to claim 1, characterized in that, Along the top-to-bottom direction, the tensile strength of the upper connector group is not less than the tensile strength of the lower connector group.

6. The stabilizing mechanism for a hydraulic support according to any one of claims 1-5, characterized in that, The inner telescopic member is circumferentially rotatable relative to the outer telescopic member; and / or, the connecting member assembly includes a chain or wire rope; and / or, the length of the connecting member assembly is adjustable.

7. A hydraulic support, characterized in that, Includes the stabilizing mechanism as described in any one of claims 1-5 above.

8. The hydraulic support according to claim 7, characterized in that, It includes a column, a top beam, and a base. The column and the stabilizing mechanism are installed between the top beam and the base, and the overall length of the N-1 connecting parts in the vertical direction is not less than the upper limit of the difference between the extended length and the contracted length of the column.

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