Slope-adjustable support for a down-the-hole drill

Abstract

The application relates to the technical field of slope construction, and provides an adjustable support for a down-the-hole drill on a slope. The adjustable support is used for linear drilling operation on an inclined slope surface with continuously changing slope, wherein the fixed frame is a frame structure, effectively reducing the overall weight of the support; at least three sliding legs are vertically detachably arranged on the fixed frame, and each sliding leg is in contact with the slope surface through a sliding cover, effectively increasing the contact area of the support and the slope, evenly distributing the weight of the support, reducing the single-point contact pressure of the support and the slope, and avoiding sinking of the support on the uneven slope; at least three inclined adjustment legs are used for adjusting the inclination of the fixed frame through telescopic movement, the support is adaptively adjusted to the angle of the slope with continuously changing slope, the support can adapt to the continuously changing slope, and the down-the-hole drill arranged on the support can also perform linear drilling on the continuously changing slope, thereby effectively avoiding drilling inclination and improving drilling quality.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of slope construction, in particular to an adjustable support for a down-the-hole drill on a slope. BACKGROUND

[0002] Slope support is to take support, reinforcement and protection measures on the slope, common support methods include gravity retaining wall, lattice anchor retaining wall support, pile anchor retaining wall support, anchor shotcrete support, etc., but no matter what kind of support method, it is necessary to drill holes on the slope. At present, it is common to arrange a down-the-hole drill on a slope scaffold to drill holes on the slope, but when the scaffold is erected on the slope, it is time-consuming and laborious to install, disassemble and move, and the construction efficiency is not high, which seriously slows down the construction progress.

[0003] Therefore, it is urgent to provide a technical solution to the above-mentioned problems of the prior art. SUMMARY

[0004] The purpose of the present application is to provide an adjustable support for a down-the-hole drill on a slope to solve or alleviate the problems existing in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present application provides the following technical solution:

[0006] The present application provides an adjustable support for a down-the-hole drill on a slope, which is used for straight drilling operation on an inclined slope surface with continuous slope change, and the adjustable support comprises: a fixed frame, which is a frame structure, and is used for a down-the-hole drill installed on the slope to drill holes;

[0007] Sliding legs, at least three sliding legs are uniformly distributed along the circumference of the fixed frame and are vertically detachably installed on the fixed frame; each sliding leg is in contact with the slope surface through a sliding cover, and the contact area is greater than the cross-sectional area of the sliding leg;

[0008] Inclined adjustment legs, at least three inclined adjustment legs are matched with the at least three sliding legs, and each inclined adjustment leg can be extended and retracted along a direction perpendicular to the fixed frame to adjust the relative angle between the fixed frame and the slope, and the lower end of each inclined adjustment leg is ball-hinged with a support disc.

[0009] Preferably, the sliding cover is a spherical shell structure with an open upper end, which is in contact with the convex spherical surface of the slope, and the area of the spherical surface is [4, 8] times the cross-sectional area of the sliding leg.

[0010] Preferably, the sliding leg has four sliding legs, and the four sliding legs are respectively located at the four corners of the fixed frame of the rectangular frame structure and are detachably connected to the fixed frame through a limiting nut and a limiting mounting block.

[0011] Preferably, the sliding cover is in contact with the outer convex arc surface of the slope, and the sliding cover is in the form of an open upward U-shaped structure.

[0012] Preferably, the sliding legs mounted on the fixed frame are divided into a plurality of groups of leg units, the plurality of groups of leg units are uniformly distributed along the length direction of the fixed frame of the rectangular frame structure, and each group of leg units comprises two sliding legs symmetrically arranged along the width direction of the fixed frame.

[0013] Preferably, the two sliding legs of each group of leg units share one sliding cover of the U-shaped structure.

[0014] Preferably, the tilt adjustment leg is clamped on the fixed frame through a limiting sleeve, wherein the fixed frame is provided with a mounting through hole in the vertical direction, the limiting sleeve is mounted in the mounting through hole, the limiting sleeve is a split structure, and surrounds the outer side wall of the tilt adjustment leg and matches the first limiting boss provided on the tilt adjustment leg.

[0015] Preferably, the limiting sleeve comprises two limiting rings which are symmetrically mounted above and below and have the same structure, one end of the limiting ring is inserted into the mounting through hole, the other end of the limiting ring extends out of the mounting through hole and is provided with a second limiting boss, and the upper surface of the second limiting boss of the lower limiting ring abuts against the bottom surface of the frame structure of the fixed frame, and the lower surface of the second limiting boss of the lower limiting ring abuts against the first limiting boss provided on the tilt adjustment leg.

[0016] Preferably, a rubber protective sleeve is arranged between the limiting sleeve and the outer side wall of the tilt adjustment leg.

[0017] Preferably, the down-the-hole drill is rotatably mounted on the fixed frame, and the inclination angle relative to the fixed frame is adjusted by an inclination angle adjusting device.

[0018] Beneficial effects:

[0019] The slope-adjustable support of the down-the-hole drill rig provided by the embodiments of the present application is used for linear drilling operation on an inclined slope with continuously changing slope, and the fixing frame of the down-the-hole drill rig used for drilling operation on the slope is of a frame structure, so as to effectively reduce the overall weight of the support and facilitate the driving of the support to shift on the slope; at least three sliding legs are uniformly arranged along the circumference of the fixing frame, each of the sliding legs is vertically and detachably installed on the fixing frame, and each of the sliding legs is in contact with the slope surface through a sliding cover, and the contact area is greater than the cross-sectional area of the sliding leg, thereby effectively increasing the contact area of the support and the slope, evenly dispersing the weight of the support, reducing the single-point contact pressure of the support and the slope, avoiding the sinking of the support on the uneven slope, and enabling the support to smoothly shift on the slope; at least three inclined adjustment legs are arranged in pairs with the at least three sliding legs, and the fixing frame is driven to move through the telescopic movement in the vertical direction of the fixing frame, so as to adaptively adjust the angle of the support relative to the slope with continuously changing slope, enable the support to adapt to the continuous slope with changing slope, and thereby adjust the down-the-hole drill rig arranged on the support to also perform linear drilling on the continuous slope with changing slope, effectively avoid drilling inclination, and improve drilling quality. BRIEF DESCRIPTION OF DRAWINGS

[0020] The drawings accompanying the specification of the present application form a part thereof, serve to provide further understanding of the present application, and together with the specification explain the illustrative embodiments of the present application, but do not constitute improper limitations on the present application.

[0021] Among them:

[0022] Figure 1 A structural schematic view of a slope-adjustable support of a down-the-hole drill rig according to some embodiments of the present application is shown in the figure;

[0023] Figure 2 An assembly schematic view of a fixing frame according to some embodiments of the present application is shown in the figure;

[0024] Figure 3 An assembly schematic view of another fixing frame according to some embodiments of the present application is shown in the figure;

[0025] Figure 4 A structural schematic view of a sliding leg according to some embodiments of the present application is shown in the figure;

[0026] Figure 5 A structural schematic view of a limiting sleeve according to some embodiments of the present application is shown in the figure;

[0027] Figure 6 A structural schematic view of a limiting sleeve according to some embodiments of the present application is shown in the figure;

[0028] Explanation of reference signs:

[0029] 1, fixed frame; 2, sliding support leg; 3, inclination adjustment support leg; 4, sliding cover; 5, support disc; 6, inclination adjustment device; 7, limiting sleeve; 8, limiting nut; 9, U-shaped support frame;

[0030] 201, first limiting boss; 701, second limiting boss. DETAILED DESCRIPTION

[0031] The application will be described in detail below with reference to the drawings and in conjunction with embodiments. Each example is provided by way of explanation of the application rather than limitation of the application. In fact, those skilled in the art will clearly understand that modifications and variations can be made in the application without departing from the scope or spirit of the application. For example, features shown or described as part of one embodiment can be used in another embodiment to produce yet another embodiment. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the application should fall within the scope of protection of the embodiments of the application.

[0032] For the drilling operation in the process of slope support, in view of the installation, disassembly and movement of the fixed scaffold, at present, the down-the-hole drill is mainly arranged on the wheeled mobile support, and the drilling operation is carried out by moving the wheeled mobile support on the slope. However, when the slope surface is not flat, the wheels used for moving on the wheeled mobile support often sink into the slope, so that the support is difficult to move, or it is very laborious to move, which increases the labor intensity of workers and is very low in efficiency.

[0033] Moreover, for continuous slopes with different slopes, the wheeled mobile support cannot effectively adapt to the continuous change of the slope when drilling, so that the down-the-hole drill arranged on the wheeled mobile support cannot drill straight in the predetermined direction when drilling at the place with continuous change of the slope, so that the drilling is inclined towards the place with continuous change of the slope, which greatly affects the drilling quality.

[0034] Based on this, the embodiments of the application provide a down-the-hole drill slope adjustable support. The down-the-hole drill is moved by the sliding of the adjustable support on the slope surface, the contact area of the support and the slope is increased, the support is effectively prevented from sinking into the unflat slope during the operation, so that the unflat slope surface can also be smoothly moved and operated. At the same time, the angle of the support is adjusted during the operation, so that the support can adapt to the continuous slope with change of the slope, and the down-the-hole drill arranged on the support can also drill straight on the continuous slope with change of the slope, so that the drilling is effectively prevented from being inclined, and the drilling quality is improved.

[0035] As Figures 1 to 6As shown, the slope adjustable support of the down-the-hole drill includes a fixed frame 1, a sliding support leg 2 and an inclination adjustment support leg 3. The sliding support leg 2 and the inclination adjustment support leg 3 are both mounted on the fixed frame 1, and the fixed frame 1 is mounted on the down-the-hole drill for slope mountain improved drilling operation. Among them, the fixed frame 1 is supported by the sliding support leg 2, and the angle of the fixed frame 1 relative to the slope surface is adjusted by the inclination adjustment support leg 3, especially the adaptive adjustment of the slope angle in the continuously changing slope, so that the support can adapt to the continuously changing slope, and then adjust the down-the-hole drill arranged on the support to also be able to straight drill on the continuously changing slope.

[0036] In this application, the fixed frame 1 is a frame structure, which is rectangular by profile welding; at least 3 sliding support legs 2 are uniformly distributed in the circumferential direction of the rectangular frame structure, and at least 3 inclination adjustment support legs 3 are arranged in pairs with the at least 3 sliding support legs 2. In a specific example, the sliding support leg 2 has 4, and the 4 sliding support legs 2 are respectively located at the four corners of the rectangular frame structure; 4 inclination adjustment support legs 3 are arranged in pairs with the 4 sliding support legs 2.

[0037] Specifically, a limiting mounting block is arranged at each corner of the rectangular frame structure, and a mounting hole is arranged on the limiting mounting block in the vertical direction; the upper end of the sliding support leg 2 is a rod structure, and the upper end is provided with an external thread, and a limiting boss is arranged at the middle of the sliding support leg 2. Correspondingly, the upper end of the sliding support leg 2 is inserted from the lower end of the mounting hole and fixed by the limiting nut 8 after passing through the upper end of the mounting hole. At the same time, the limiting boss arranged on the sliding support leg 2 abuts against the bottom surface of the limiting mounting block, and the limiting boss is tightly abutted against the limiting mounting block by tightening the limiting nut 8, so as to detachably connect the sliding support leg 2 to the fixed frame 1.

[0038] A sliding cover 4 is arranged at the lower end of the limiting support leg, and the sliding cover 4 and the sliding support leg 2 can be an integral molding structure or can be fixed by a threaded connection. The sliding cover 4 contacts the slope surface, and the contact area is greater than the cross-sectional area of the sliding support leg 2, thereby effectively increasing the contact area of the support and the slope, evenly distributing the weight of the support, reducing the single-point contact pressure of the support and the slope, avoiding the sinking of the support on the uneven slope, and enabling the support to smoothly slide and move on the slope. It should be noted that the movement of the fixed frame 1 on the slope can be driven by a steel wire rope or other cable through an electric hoist or other power device arranged on the top of the slope.

[0039] In a specific example, the sliding cover 4 is an open-top spherical shell structure, and the spherical surface is in surface contact with the slope through outward convexity, and the area of the spherical surface is [4, 8] times the cross-sectional area of the sliding leg 2. In this way, the support can effectively solve the soil accumulation on the slope, especially on the uneven slope surface, and can effectively avoid the subsidence on the slope surface, no matter which direction the support moves on the slope.

[0040] In another specific example, the sliding cover 4 is in contact with the slope through an outward convex arc surface, and the sliding cover 4 is a U-shaped structure open upward. At this time, the sliding legs 2 installed on the fixed frame 1 are divided into a plurality of leg units, each of which is uniformly distributed along the length direction of the fixed frame 1 of the rectangular frame structure, and each of which includes two sliding legs 2 symmetrically arranged along the width direction of the fixed frame 1. Among them, the two sliding legs 2 that make up a group can share a U-shaped sliding cover 4 to further increase the contact area between the support and the slope, reduce the single-point contact pressure between the support and the slope, and avoid the subsidence of the support on the slope.

[0041] In this application, each inclination adjusting leg 3 can be telescopically moved in the vertical direction of the fixed frame 1 to drive the fixed frame 1 to move, adjust the inclination angle of the fixed frame 1 relative to the slope, and adapt to the slope surface with continuously changing slope inclination, so that the down-the-hole drill can drill straight on the slope surface with different slopes. Among them, the inclination adjusting leg 3 can adopt a hydraulic oil cylinder, and the lower end of each inclination adjusting leg 3 is ball-hinged with a support disc 5; when the inclination angle of the fixed frame 1 needs to be adjusted, the hydraulic oil cylinder is extended, and the lower end connected support disc 5 is supported on the slope surface. Because the ball-hinged connection method is adopted, the bottom surface of the support disc 5 can be effectively ensured to be in contact with the slope surface with different slopes.

[0042] In a specific example, the inclination adjusting leg 3 is clamped on the fixed frame 1 by the limiting sleeve 7. Among them, the fixed frame 1 is provided with a mounting through hole in the vertical direction, and the limiting sleeve 7 is installed in the mounting through hole. Specifically, the limiting sleeve 7 adopts a split structure and embraces the outer wall of the inclination adjusting leg 3. In this way, the inclination adjusting leg 3 is fixed in the mounting through hole by the limiting sleeve 7, and the inclination adjusting leg 3 is protected to reduce the wear between the inclination adjusting leg 3 and the fixed frame 1.

[0043] In this embodiment, the limiting sleeve 7 includes two limiting rings that are symmetrically installed and have the same structure, the limiting ring is a cylindrical structure, and a second limiting boss 701 is arranged at one end of the cylindrical structure. Among them, each limiting ring includes two semicircular components that are symmetric about the central axis and have the same structure, and the two semicircular components are combined to form a cylindrical limiting ring.

[0044] Among the two limiting rings of the limiting sleeve 7, the two half-arc components of the lower limiting ring are buckled on the outer side wall of the tilt adjusting leg 3, and are inserted into the mounting through hole from the lower end of the mounting through hole together with the tilt adjusting leg 3, until the upper surface of the first limiting boss 701 of the lower limiting ring abuts against the bottom surface of the frame structure of the fixed frame 1, and at the same time, the lower surface of the first limiting boss 701 of the lower limiting ring abuts against the first limiting boss 201 arranged on the tilt adjusting leg 3, so as to limit and fix the tilt adjusting leg 3.

[0045] After the tilt adjusting leg 3 and the lower limiting ring are inserted into the mounting through hole, and the upper surface of the first limiting boss 701 of the lower limiting ring abuts against the bottom surface of the rectangular frame structure of the fixed frame 1, and the lower surface of the first limiting boss 701 of the lower limiting ring abuts against the first limiting boss 201, the two half-arc components of the upper limiting ring are buckled on the outer side wall of the tilt adjusting leg 3 from the end of the tilt adjusting leg 3 extending out of the top surface of the fixed frame 1, and the two half-arc components of the upper limiting ring are pressed into the mounting through hole from top to bottom, until the first limiting boss 701 of the upper limiting ring abuts against the upper surface of the fixed frame 1.

[0046] Therefore, the tilt adjusting leg 3 is fixedly installed on the fixed frame 1 by the limiting sleeve 7 composed of the upper and lower limiting rings. Further, a rubber protective sleeve is arranged between the limiting sleeve 7 and the outer side wall of the tilt adjusting leg 3, so as to avoid the friction and wear between the tilt adjusting leg 3 and the limiting sleeve 7, and further protect the tilt adjusting leg 3.

[0047] In the embodiment, the mounting lug is arranged on the fixed frame 1, and the down-the-hole drill is rotatably installed on the mounting lug through the rotating connecting shaft; meanwhile, the inclination adjusting device 6 (inclination adjusting oil cylinder) is arranged between the down-the-hole drill and the fixed frame 1, and the inclination of the down-the-hole drill relative to the fixed frame 1 is effectively adjusted through the action of the inclination adjusting oil cylinder, so as to further expand the adaptability of the down-the-hole drill when working on the slope. In addition, the U-shaped support frame is arranged on the fixed frame 1, and when the down-the-hole drill is placed on the fixed frame 1, the bottom surface of the down-the-hole drill is located on the U-shaped support frame 9, so as to effectively ensure the stability of the down-the-hole drill.

[0048] The adjustable support for straight drilling operation of the slope with continuously changing slope in the application, through the fixing frame 1 designed by the frame structure, effectively reduces the overall weight of the support, facilitates the driving of the support to transfer on the slope; at least three sliding legs 2 are uniformly arranged along the circumference of the fixing frame 1, each sliding leg 2 is vertically detachably installed on the fixing frame 1, and each sliding leg 2 is in contact with the slope surface through the sliding cover 4, and the contact area is greater than the cross-sectional area of the sliding leg 2, thereby effectively improving the contact area of the support and the slope, evenly dispersing the weight of the support, reducing the single-point contact pressure of the support and the slope, avoiding the sinking of the support on the uneven slope, and enabling the smooth sliding transfer of the support on the slope; at least three inclined adjustment legs 3 are arranged in combination with the at least three sliding legs 2, the fixing frame 1 is driven to move through the telescopic movement in the vertical direction of the fixing frame 1, the adaptive adjustment of the angle of the support relative to the slope with continuously changing slope is carried out, the support can adapt to the continuous slope with changing slope, and the down-the-hole drill arranged on the support can also carry out straight drilling on the continuous slope with changing slope, thereby effectively avoiding the drilling inclination and improving the drilling quality.

[0049] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0050] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0051] In the present application, unless specifically defined otherwise, the terms "mount", "connected", "connecting", "fixed", "unfixed", and the like are to be construed in their broadest possible sense, such as, for example, fixedly connected, detachably connected, or integrated; mechanically connected, electrically connected, or communicatively connected; directly connected, or indirectly connected via intervening medium; or internal communication between elements, or interaction therebetween, unless specifically defined otherwise. The specific meaning of the above terms in the present application can be understood according to the specific circumstances by those of ordinary skill in the art.

[0052] In the present application, unless specifically defined otherwise, a first feature "on" or "under" a second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact via an intervening medium. Moreover, the first feature "over", "above", and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in horizontal level than the second feature. The first feature "under", "below", and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in horizontal level than the second feature.

[0053] In the present application, the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" mean that the particular feature, structure, material, or characteristic being described is included in at least one embodiment or example of the present application. The illustrative descriptions in this specification are not necessarily directed to the same embodiment or example, and it is appreciated that the description of a particular feature, structure, material, or characteristic can be included in any suitable embodiment or example. In this specification, the terms "include" and "comprise" and their conjugates mean "including but not limited to".

[0054] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An adjustable slope support for a down-the-hole drill rig, characterized in that, The adjustable support is used for straight-line drilling operations on sloping surfaces with continuously varying gradients. A fixed frame is a frame structure used to install down-the-hole drilling rigs on slopes for drilling operations. Sliding legs, at least three of which are evenly distributed around the circumference of the fixed frame and are vertically and detachably installed on the fixed frame; each of the sliding legs contacts the slope surface through a sliding cover, and the contact area is greater than the cross-sectional area of ​​the sliding leg. The tilting adjustable legs are provided with at least three tilting adjustable legs and at least three sliding legs. Each tilting adjustable leg can extend and retract in a direction perpendicular to the fixed frame to adjust the relative angle between the fixed frame and the slope. The lower end of each tilting adjustable leg is ball-jointed to a support plate.

2. The adjustable slope support for a down-the-hole drill rig according to claim 1, characterized in that, The sliding cover is a spherical shell structure with an open top, which contacts a convex spherical surface on the side slope, and the area of ​​the spherical surface is equal to the cross-sectional area of ​​the sliding leg. times.

3. The adjustable slope support for a down-the-hole drill rig according to claim 2, characterized in that, There are four sliding legs, which are located at the four corners of the fixed frame of the rectangular frame structure and are detachably connected to the fixed frame by limiting nuts and limiting mounting blocks.

4. The adjustable slope support for a down-the-hole drill rig according to claim 3, characterized in that, The sliding cover contacts the outwardly convex arc-shaped surface of the slope, and the sliding cover has an upward-opening U-shaped structure.

5. The adjustable slope support for a down-the-hole drill rig according to claim 4, characterized in that, The sliding legs mounted on the fixed frame are divided into multiple groups of leg units. The multiple groups of leg units are evenly distributed along the length direction of the fixed frame of the rectangular frame structure, and each group of leg units includes two sliding legs symmetrically arranged along the width direction of the fixed frame.

6. The adjustable slope support for a down-the-hole drill rig according to claim 5, characterized in that, The two sliding legs of each leg unit share a sliding cover of the U-shaped structure.

7. The adjustable slope support for a down-the-hole drill rig according to claim 1, characterized in that, The tilt-adjustable support leg is fastened to the fixed frame by a limiting sleeve; wherein, the fixed frame is provided with a mounting through hole along the vertical direction, and the limiting sleeve is installed in the mounting through hole. The limiting sleeve is a split structure and surrounds the outer wall of the tilt-adjustable support leg, and matches the first limiting boss provided on the tilt-adjustable support leg.

8. The adjustable slope support for a down-the-hole drill rig according to claim 7, characterized in that, The limiting sleeve includes two symmetrically installed limiting rings with identical structures. One end of each limiting ring is inserted into the mounting through hole, and the other end extends out of the mounting through hole and is provided with a second limiting boss. The upper surface of the second limiting boss of the lower limiting ring abuts against the bottom surface of the frame structure of the fixing bracket, and the lower surface of the second limiting boss of the lower limiting ring abuts against the first limiting boss provided on the tilting adjustment leg.

9. The adjustable slope support for a down-the-hole drill rig according to claim 7, characterized in that, A rubber protective sleeve is provided between the limiting sleeve and the outer wall of the tilting adjustment leg.

10. The adjustable slope support for a down-the-hole drill rig according to any one of claims 1-9, characterized in that, The down-the-hole drill is rotatably mounted on the fixed frame, and its tilt angle relative to the fixed frame is adjusted by a tilt angle adjustment device.

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