Single hydraulic prop and method of using the same

Abstract

The present invention relates to the technical field of mining tunnel engineering tools, and in particular to a single hydraulic prop and a method for using the same. The single hydraulic prop includes a hydraulic column body and a positioning assembly, the positioning assembly includes a fixed seat, a movable seat and an elastic member, the upper end of the hydraulic column body is detachably connected to the lower surface of the fixed seat, the movable seat is a cavity shell with an opening at the lower end, the inner side wall of the top plate of the movable seat is provided with a mounting hole adapted to the elastic member, the mounting hole is eccentrically arranged on the top plate of the movable seat, the lower end of the elastic member is connected to the upper surface of the fixed seat, and the upper end of the elastic member extends into the interior of the mounting hole. The present invention can overcome the defect of uneven force on the single hydraulic prop caused by the top end of the traditional single hydraulic prop not being able to tilt with the metal crossbeam, the single hydraulic prop is not easy to be damaged, the support is stable and reliable, and the support effect is better.

Description

Technical Field

[0001] The invention relates to the technical field of mining tunnel engineering tools, and in particular to a single hydraulic prop and a use method thereof. Background Art

[0002] At present, the metal shed support composed of a single hydraulic support and a metal beam is a commonly used advanced support structure for mine tunnels. However, due to the connection problem between the single hydraulic support and the metal beam, this combined structure has the following two defects in engineering applications. First, the tunnel roof is uneven, and it is impossible for the beam to be in full surface contact with the roof. In addition, since the top of the single hydraulic support cannot be swung and adjusted, there is a gap between the metal beam and the top of the single hydraulic support, and the single hydraulic support is very easy to be overturned by the eccentric axial force. Second, when the tunnel roof has a certain inclination angle, there must be a large gap between the top of the single hydraulic support and the metal beam. The ideal surface contact becomes a line contact, and the support composed of the single hydraulic support and the metal beam is very easy to be pushed laterally. It can be seen from this that since the top of the existing single hydraulic support cannot be tilted with the metal beam, the top of the single hydraulic support is unevenly stressed, not only the single hydraulic support is easily damaged, but also the single hydraulic support is easily pushed down by the lateral force at the top, resulting in support failure. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] The purpose of the present invention is to provide a single hydraulic prop and a method for using the same, so as to solve the problem that the top of the existing single hydraulic prop cannot be tilted along with the metal crossbeam.

[0005] (II) Technical solution

[0006] In order to solve the above technical problems, the present invention provides a single hydraulic support, including a hydraulic column body and a locking assembly, the locking assembly including a fixed seat, a movable seat sleeved on the outside of the fixed seat, and an elastic member arranged between the fixed seat and the movable seat, the upper end of the hydraulic column body is detachably connected to the lower surface of the fixed seat; the movable seat is a hollow shell with an opening at the lower end, the inner side wall of the top plate of the movable seat is provided with a mounting hole adapted to the elastic member, and the mounting hole is eccentrically arranged on the top plate of the movable seat; the lower end of the elastic member is connected to the upper surface of the fixed seat, and the upper end of the elastic member extends into the interior of the mounting hole; a gap is set between the inner side wall of the side plate of the movable seat and the outer surface of the fixed seat.

[0007] Furthermore, an elastic member mounting seat is eccentrically provided on the upper surface of the fixing seat, and the lower end of the elastic member is fixedly mounted on the elastic member mounting seat.

[0008] Furthermore, the outer side wall of the top plate of the movable seat is provided with two strip-shaped locking protrusions which are arranged at intervals, and the two strip-shaped locking protrusions are parallel to each other.

[0009] Specifically, the cross section of the movable seat is a rectangle, and the cross section of the fixed seat is a rectangle matching the movable seat.

[0010] Furthermore, a plug-in component is provided on the lower surface of the fixing seat, and a plug-in slot matching the plug-in component is provided on the upper end of the hydraulic column body, and the plug-in component is plugged into the plug-in slot.

[0011] Specifically, the connector includes a first plug-in board and a second plug-in board, the first plug-in board and the second plug-in board are both perpendicular to the lower surface of the fixing seat, and the first plug-in board and the second plug-in board are cross-arranged.

[0012] Specifically, the hydraulic column body includes a fixed cylinder body and a telescopic column telescopically connected to the fixed cylinder body, and the upper end of the telescopic column is detachably connected to the fixed seat.

[0013] Furthermore, it also includes a base, and the lower end of the fixed cylinder is fixedly connected to the base.

[0014] Furthermore, a hydraulic joint is provided on the side wall of the fixed cylinder body.

[0015] The present invention provides a method for using the above-mentioned single hydraulic prop, the method comprising:

[0016] Placing the hydraulic column body at a predetermined position in the tunnel so that the base at the lower end of the hydraulic column body stably contacts the bottom plate of the tunnel;

[0017] Insert the connector on the lower surface of the fixing seat into the connector groove on the upper end of the hydraulic column body, so that the fixing seat and the hydraulic column body are firmly installed;

[0018] Install one end of the elastic member on the elastic member mounting seat on the upper surface of the fixed seat, and then sleeve the movable seat on the outside of the fixed seat so that the other end of the elastic member extends into the mounting hole on the inner side wall of the top plate of the movable seat;

[0019] The metal crossbeam is placed between two strip-shaped positioning protrusions on the outer side wall of the top plate of the movable seat to ensure that the lower surface of the metal crossbeam can be completely in contact with the upper surface of the top plate of the movable seat.

[0020] (III) Beneficial effects

[0021] The above technical solution of the present invention has the following advantages:

[0022] The single hydraulic support and the use method thereof provided by the present invention connect the lower surface of the fixed seat with the upper end of the hydraulic column body in a detachable manner, which is convenient for assembly. By eccentrically setting a mounting hole on the top plate of the movable seat, the lower end of the elastic member is connected to the upper surface of the fixed seat, and the upper end of the elastic member is extended into the interior of the mounting hole, so that after the movable seat and the fixed seat are assembled, the movable seat can be tilted to one side relative to the fixed seat, and the angle of the movable seat can be adjusted under the elastic force of the elastic member. When the metal beam is installed on the upper end of the movable seat, the movable seat can adapt to the tilt angle of the metal beam, so that the lower surface of the metal beam can be completely in contact with the upper surface of the top plate of the movable seat. Therefore, the present invention can overcome the defect of uneven force on the single hydraulic support caused by the top end of the traditional single hydraulic support not being able to tilt with the metal beam. The single hydraulic support is not easy to be damaged, the support is stable and reliable, and the support effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 2 is a schematic diagram of the structure of a single hydraulic support according to an embodiment of the present invention;

[0024] Figure 2 It is a structural schematic diagram of a hydraulic column body in a single hydraulic support in an embodiment of the present invention;

[0025] Figure 3 It is a schematic diagram of the split state of the locking assembly in the single hydraulic support according to the embodiment of the present invention;

[0026] Figure 4 It is a schematic diagram of the assembly state of the locking assembly in the single hydraulic support according to the embodiment of the present invention;

[0027] Figure 5 is a cross-sectional view of a positioning assembly in a single hydraulic support according to an embodiment of the present invention;

[0028] Figure 6 It is a schematic diagram of the structure of a fixing seat in a single hydraulic support according to an embodiment of the present invention;

[0029] Figure 7 It is a schematic structural diagram of a movable seat in a single hydraulic support according to an embodiment of the present invention.

[0030] In the figure:

[0031] 1: Hydraulic column body; 101: Fixed cylinder; 102: Telescopic column; 103: Plug slot; 104: Base; 105: Hydraulic joint;

[0032] 2: latch assembly; 201: fixed seat; 202: movable seat; 202A: top plate; 202B: side plate; 203: elastic member; 204: mounting hole; 205: elastic member mounting seat; 206: strip-shaped latch protrusion; 207: plug-in member; 207A: first plug-in board; 207B: second plug-in board. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0034] like Figures 1 to 7 As shown, an embodiment of the present invention provides a single hydraulic support, including a hydraulic support body 1 and a locking assembly 2.

[0035] The positioning assembly 2 includes a fixed seat 201, a movable seat 202 sleeved on the outside of the fixed seat 201, and an elastic member 203 arranged between the fixed seat 201 and the movable seat 202. Among them, the elastic member 203 can be a high-strength elastic spring. The movable seat 202 is a cavity shell with an opening at the lower end, and the inner side wall of the top plate 202A of the movable seat 202 is provided with a mounting hole 204 adapted to the elastic member 203, and the mounting hole 204 is eccentrically arranged on the top plate 202A of the movable seat 202. The lower end of the elastic member 203 is connected to the upper surface of the fixed seat 201, and the upper end of the elastic member 203 extends into the interior of the mounting hole 204. The inner side wall of the side plate 202B of the movable seat 202 and the outer surface of the fixed seat 201 are set with a gap, that is, when the movable seat 202 is sleeved on the fixed seat 201, the gap between the movable seat 202 and the fixed seat 201 is set, so that the movable seat 202 can move relative to the fixed seat 201.

[0036] The upper end of the hydraulic column body 1 is detachably connected to the lower surface of the fixing seat 201 , so as to facilitate the assembly between the hydraulic column body 1 and the locking assembly 2 .

[0037] Since the mounting hole 204 is eccentrically arranged on the top plate of the movable seat 202, after the fixed seat 201, the movable seat 202 and the elastic member 203 are assembled, the movable seat 202 can be tilted to one side relative to the fixed seat 201, and the angle of the movable seat 202 can be adjusted to a certain extent under the elastic force of the elastic member 203. When the metal beam is mounted on the upper end of the movable seat 202, the movable seat 202 can adapt to the tilt angle of the metal beam, so that the lower surface of the metal beam can be completely in contact with the upper surface of the top plate 202A of the movable seat 202.

[0038] Therefore, the single hydraulic support described in the embodiment of the present invention has a simple structure and is easy to assemble. It can overcome the defect that the top of the traditional single hydraulic support cannot be tilted along with the metal beam, which causes uneven force on the single hydraulic support. The support of the single hydraulic support is stable and reliable, making the single hydraulic support not easy to be damaged and having a better support effect.

[0039] In a further embodiment of the present invention, an elastic member mounting seat 205 is eccentrically disposed on the upper surface of the fixing seat 201, and the lower end of the elastic member 203 is fixedly mounted on the elastic member mounting seat 205. By providing the elastic member mounting seat 205, the elastic member 203 and the fixing seat 201 can be fixedly mounted.

[0040] In a further embodiment of the present invention, two strip-shaped positioning protrusions 206 are provided on the outer side wall of the top plate 202A of the movable seat 202, and the two strip-shaped positioning protrusions 206 are parallel to each other. By providing two strip-shaped positioning protrusions 206, the metal beam can be clamped between the two strip-shaped positioning protrusions 206, thereby achieving the installation between the metal beam and the movable seat 202.

[0041] Specifically, the strip-shaped locking protrusions 206 are symmetrically arranged relative to the mounting holes 204, so as to ensure that after the metal beam and the movable seat 202 are assembled, the tilting direction of the movable seat 202 can match the tilting direction of the metal beam.

[0042] In a specific embodiment of the present invention, the cross section of the movable seat 202 is a rectangle, and the cross section of the fixed seat 201 is a rectangle matching the movable seat 202 .

[0043] Of course, the cross-sections of the movable seat 202 and the fixed seat 201 may also be set to other shapes, such as a circle, an ellipse, a triangle, and a polygon with more than four sides, according to actual use requirements.

[0044] In a specific embodiment of the present invention, the hydraulic column body 1 includes a fixed cylinder body 101 and a telescopic column 102 telescopically connected to the fixed cylinder body 101 , and the upper end of the telescopic column 102 is detachably connected to the fixed seat 201 .

[0045] In a further embodiment of the present invention, a connector 207 is disposed on the lower surface of the fixing seat 201 , and a plug-in slot 103 matching the connector 207 is disposed on the upper end of the telescopic column 102 , and the connector 207 is plugged into the plug-in slot 103 .

[0046] In a specific embodiment, the connector 207 includes a first plug-in board 207A and a second plug-in board 207B. The first plug-in board 207A and the second plug-in board 207B are both perpendicular to the lower surface of the fixing seat 201. The first plug-in board 207A and the second plug-in board 207B are cross-arranged to form a cross shape.

[0047] Of course, the structural form of the plug-in connector 207 can be set according to actual use requirements. For example, the plug-in connector 207 can be set as a plurality of plug-in blocks arranged in a ring on the lower surface of the fixed seat 201, and accordingly, the plug-in slots 103 are a plurality of plug-in slots arranged on the upper end surface of the telescopic column 102 and corresponding to the plug-in blocks. For another example, the plug-in connector 207 can be a plug-in column arranged on the lower surface of the fixed seat 201, and the plug-in column can be set as a polygon, and accordingly, the plug-in slot 103 is a plug-in slot arranged on the upper end surface of the telescopic column 102 and adapted to the shape of the plug-in column. That is, as long as the pluggable installation between the fixed seat 201 and the telescopic column 102 can be achieved, it will be fine.

[0048] In a specific embodiment of the present invention, the hydraulic column body 1 further includes a base 104, and the lower end of the fixed cylinder 101 is fixedly connected to the base 104. The base 104 can be square. By providing the base 104, the stability of the hydraulic column body 1 can be ensured, and the hydraulic column body 1 can be stably placed on the bottom plate of the tunnel.

[0049] In a specific embodiment of the present invention, a hydraulic connector 105 is further provided on the side wall of the fixed cylinder body 101 , and the hydraulic connector 105 is used to connect the high-pressure fluid of the hydraulic pump.

[0050] The method for using the single hydraulic prop in the above embodiment of the present invention specifically comprises:

[0051] The hydraulic column body 1 is placed at a predetermined position in the tunnel so that the base 104 at the lower end of the hydraulic column body 1 stably contacts the bottom plate of the tunnel.

[0052] Insert the connector 207 on the lower surface of the fixing seat 201 into the connector groove 103 on the upper end of the hydraulic column body 1 to securely install the fixing seat 201 and the hydraulic column body 1 .

[0053] Install one end of the elastic member 203 on the elastic member mounting seat 205 on the upper surface of the fixed seat 201, and then put the movable seat 202 on the outside of the fixed seat 201 so that the other end of the elastic member 203 extends into the mounting hole 204 on the inner wall of the top plate 202A of the movable seat 202.

[0054] Place the metal beam between the two strip-shaped locking protrusions 206 on the outer wall of the top plate 202A of the movable seat 202 to ensure that the lower surface of the metal beam can completely fit and contact the upper surface of the top plate 202A of the movable seat 202, so that the movable seat 202 can tilt with the tilt of the metal beam, but the metal beam will not detach from the movable seat 202.

[0055] Then, by adopting the above-mentioned installation steps, all metal beams can be supported by the single hydraulic support pillars described in the embodiment of the present invention, thereby completing the installation construction of the metal beam shed.

[0056] To sum up, the single hydraulic support and the method of using the same described in the embodiment of the present invention, when the metal beam is installed on the upper end of the movable seat, the movable seat can adapt to the inclination angle of the metal beam, so that the lower surface of the metal beam can be completely in contact with the upper surface of the top plate of the movable seat, thereby overcoming the defect of uneven force on the single hydraulic support caused by the top end of the traditional single hydraulic support cannot be tilted with the metal beam. The single hydraulic support is not easy to be damaged, the support is stable and reliable, and the support effect is better.

[0057] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0058] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0059] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0061] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A single hydraulic prop, characterized in that: The invention comprises a hydraulic column body and a positioning assembly, wherein the positioning assembly comprises a fixed seat, a movable seat sleeved outside the fixed seat, and an elastic member arranged between the fixed seat and the movable seat, wherein the upper end of the hydraulic column body is detachably connected to the lower surface of the fixed seat; the movable seat is a hollow shell with an opening at the lower end, and the inner side wall of the top plate of the movable seat is provided with a mounting hole adapted to the elastic member, and the mounting hole is eccentrically arranged on the top plate of the movable seat; the lower end of the elastic member is connected to the upper surface of the fixed seat, and the upper end of the elastic member extends into the interior of the mounting hole; a gap is arranged between the inner side wall of the side plate of the movable seat and the outer surface of the fixed seat; An elastic member mounting seat is eccentrically arranged on the upper surface of the fixing seat, and the lower end of the elastic member is fixedly mounted on the elastic member mounting seat; The cross section of the movable seat is a rectangle, and the cross section of the fixed seat is a rectangle matching the movable seat; A plug-in component is disposed on the lower surface of the fixing seat, and a plug-in slot matching the plug-in component is disposed on the upper end of the hydraulic column body, and the plug-in component is plugged into the plug-in slot.

2. The single hydraulic prop according to claim 1, characterized in that: The outer side wall of the top plate of the movable seat is provided with two strip-shaped clamping protrusions arranged at intervals, and the two strip-shaped clamping protrusions are parallel to each other.

3. The single hydraulic prop according to claim 1, characterized in that: The connector includes a first plug-in board and a second plug-in board. The first plug-in board and the second plug-in board are both perpendicular to the lower surface of the fixing seat. The first plug-in board and the second plug-in board are cross-arranged.

4. The single hydraulic prop according to claim 1, characterized in that: The hydraulic column body comprises a fixed cylinder body and a telescopic column telescopically connected to the fixed cylinder body, and the upper end of the telescopic column is detachably connected to the fixing seat.

5. The single hydraulic prop according to claim 4, characterized in that: It also includes a base, and the lower end of the fixed cylinder is fixedly connected to the base.

6. The single hydraulic prop according to claim 4, characterized in that: A hydraulic joint is also provided on the side wall of the fixed cylinder body.

7. A method for using the single hydraulic prop according to any one of claims 1 to 6, characterized in that: Placing the hydraulic column body at a predetermined position in the tunnel so that the base at the lower end of the hydraulic column body stably contacts the bottom plate of the tunnel; Insert the connector on the lower surface of the fixing seat into the connector groove on the upper end of the hydraulic column body, so that the fixing seat and the hydraulic column body are firmly installed; Install one end of the elastic member on the elastic member mounting seat on the upper surface of the fixed seat, and then sleeve the movable seat on the outside of the fixed seat so that the other end of the elastic member extends into the mounting hole on the inner side wall of the top plate of the movable seat; The metal crossbeam is placed between two strip-shaped positioning protrusions on the outer side wall of the top plate of the movable seat to ensure that the lower surface of the metal crossbeam can be completely in contact with the upper surface of the top plate of the movable seat.

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