CN214660270U - Telescopic drilling and grouting integrated anchor rod - Google Patents

Abstract

The utility model discloses a telescopic drilling and grouting integrated anchor rod, which comprises a first rod body, a flow mixer, a second rod body and a drill bit, the first rod body is provided with a channel, a first end and a second end, the channel penetrates through the first rod body along the length direction of the first rod body, the outer peripheral surface of the first rod body is provided with an external thread, the external thread extends for a preset length from the first end to the second end along the length direction of the first rod body, the flow mixer is arranged in the channel, and adjacent to the first end, the second rod body is provided with a central hole, at least part of the first rod body adjacent to the second end is positioned in the central hole, an internal thread is arranged in the central hole and matched with the external thread of the first rod body, and the drill bit is arranged at one end, far away from the first rod body, of the second rod body. The utility model discloses a telescopic brill annotates integration stock has simple structure, characteristics that the efficiency of construction is high.

Description

Telescopic drilling and grouting integrated anchor rod

Technical Field

The utility model relates to a coal mining equipment technical field specifically, relates to a telescopic brill annotates integration stock.

Background

Bolting is the main mode of supporting in the underground coal mine, and the stock is widely used in the coal road supporting operation. In the operation of current anchor bolt support, the condition that the effective stroke of ubiquitous construction equipment is less than anchor rod length, and under this condition, can only accomplish the construction of whole stock through constantly adjusting construction equipment, reduce the efficiency of construction and construction quality is poor.

SUMMERY OF THE UTILITY MODEL

The present invention is made based on the discovery and recognition by the inventors of the following facts and problems:

under the condition that the effective stroke of construction equipment is less than stock length, the construction of whole stock is accomplished to the continuous adjustment construction equipment, reduces the efficiency of construction, consequently under the condition that does not increase stock length, increases the degree of depth that the stock was strutted effectively, satisfies the less application scene demand of construction equipment stroke, becomes the problem that the prior art of stock urgently needed to solve.

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, the embodiment of the utility model provides a telescopic brill notes integration stock that the stock is scalable, simple structure, efficiency of construction is high.

The telescopic drilling and grouting integrated anchor rod comprises a first rod body, a flow mixer, a second rod body and a drill bit, wherein the first rod body is provided with a channel, a first end and a second end, the channel penetrates through the first rod body along the length direction of the first rod body, an external thread is arranged on the outer peripheral surface of the first rod body, the external thread extends from the first end to the second end along the length direction of the first rod body for a preset length, the flow mixer is arranged in the channel and is adjacent to the first end, the flow mixer is spiral and is used for uniformly mixing an anchoring agent and then leading the anchoring agent into the channel, the second rod body is provided with a central hole, at least one part of the first rod body adjacent to the second end is positioned in the central hole, an internal thread is arranged in the central hole, and the internal thread is matched with the external thread of the first rod body, wherein the first body of rod rotates along first direction, the first body of rod has from first end orientation when the axial force of second end, the first body of rod with take place the screw thread auto-lock between the second body of rod, the second body of rod is along the first direction rotates, the first body of rod does not have from first end orientation when the axial force of second end, the first body of rod with do not take place the screw thread auto-lock between the second body of rod, the first body of rod relative with the second body of rod rotates, thereby at least part of the first body of rod is followed stretch out predetermined length in the centre bore, the drill bit is established keep away from on the second body of rod the one end of the first body of rod.

According to the utility model discloses telescopic brill annotates integration stock through the cooperation of the first body of rod and the second body of rod, realizes the flexible of stock, under the condition that does not increase stock length, increases anchor bolt support's degree of depth effectively, satisfies the less applied scene demand of construction equipment stroke, sets up passageway and mixed flow ware in the first body of rod simultaneously, effectively mixes the anchoring agent, has simple structure, the efficiency of construction is high, characteristics that construction quality is high.

In some embodiments, the telescopic drilling and grouting integrated anchor rod further comprises a limit nut and a driving nut, the limit nut is in threaded fit with the first rod body, the driving nut is in threaded fit with the first rod body, when the driving nut rotates along a first direction, the driving nut is abutted against the limit nut, and a rotation torque applied to the limit nut by the driving nut is smaller than a rotation torque required by the limit nut to rotate relative to the first rod body, so that the limit nut limits the driving nut to move towards the first end of the first rod body, and the driving nut drives the first rod body to rotate along the first direction.

In some embodiments, the drive nut applies a pre-tensioning force to the first rod in a direction from the second end toward the first end when the drive nut is rotated in a second direction opposite the first direction.

In some embodiments, the stop nut is in point contact with the drive nut.

In some embodiments, the driving nut includes a first section and a second section, the central hole of the first section is a threaded hole, the central hole of the second section is a fitting hole, the diameter of the fitting hole is larger than that of the threaded hole, the limit nut is fitted in the fitting hole, and a gap is formed between the outer circumferential surface of the limit nut and the inner circumferential surface of the fitting hole.

In some embodiments, the first rod body is divided into a first rod section and a second rod section along the length direction of the first rod body, the limiting nut and the driving nut are located in the first rod section, the second rod section is located in the central hole, and the external thread on the outer peripheral surface of the second rod section is different from the external thread on the outer peripheral surface of the first rod section.

In some embodiments, the length of the second rod segment is less than the length of the second rod body.

In some embodiments, a spacer is disposed between the first segment and the second segment, and the outer surface of the spacer is smooth.

In some embodiments, the drill bit has a width less than the diameter of the central bore of the second rod.

In some embodiments, the first rod and the second rod are both made of a corrosion resistant material.

Drawings

Fig. 1 is the embodiment of the utility model provides an in the embodiment telescopic drilling and grouting integration stock structure schematic diagram.

Fig. 2 is a cross-sectional view of the telescopic drill-and-injection integrated anchor rod of fig. 1.

Fig. 3 is a top view of the telescoping drill-and-injection integrated rock bolt of fig. 1.

Fig. 4 is the embodiment of the utility model provides an in the telescopic drilling and grouting integration stock extend state's schematic structure view.

Fig. 5 is a cross-sectional view of the telescopic drill-and-injection integrated anchor rod of fig. 4.

Reference numerals:

the structure comprises a first rod body 1, a channel 11, a first end 12, a second end 13, a first rod section 14, a second rod section 15, an isolation section 16, a mixer 2, a second rod body 3, a central hole 31, a drill bit 4, a limiting nut 5, a driving nut 6, a first section 61, a second section 62 and a matching hole 621.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

A telescopic drilling and grouting integrated anchor rod according to an embodiment of the present invention will be described with reference to fig. 1 to 5.

According to the utility model discloses telescopic brill notes integration stock includes first body of rod 1, mixed flow ware 2, the second body of rod 3 and drill bit 4.

The first rod body 1 is provided with a channel 11, a first end 12 and a second end 13, the channel 11 penetrates through the first rod body 1 along the length direction of the first rod body 1, an external thread is arranged on the outer peripheral surface of the first rod body 1, and the external thread extends for a preset length from the first end 12 to the second end 13 along the length direction of the first rod body 1.

As shown in fig. 1 to 5, the first end 12 of the first rod 1 is an upper end, the second end 13 is a lower end, external threads are arranged on the outer circumferential surface of the first rod 1 from top to bottom, a channel 11 penetrating through the first rod 1 in the up-down direction is arranged in the first rod 1, and the channel 11 is used for discharging waste water in the drilling process and injecting an anchoring agent into the drill hole to fix the anchor rod.

The mixer 2 is arranged in the channel 11 and is adjacent to the first end 12, and the mixer 2 is spiral and is used for uniformly mixing the anchoring agent and then introducing the anchoring agent into the channel 11.

As shown in fig. 1-5, a mixer 2 is arranged at the upper end of the channel 11, the spiral mixer 2 is positioned in the channel 11, when the anchoring agent passes through the mixer 2, the spiral structure enables the anchoring agent to be uniformly mixed, and the uniformly mixed anchoring agent is injected into the channel 11, so that the anchoring quality is improved.

The second body of rod 3 is equipped with centre bore 31, the first body of rod 1 is close to the at least part of second end 13 and is located the centre bore 31, be equipped with the internal thread in the centre bore 31, the internal thread cooperatees with the external thread of first body of rod 1, wherein first body of rod 1 rotates along first direction, when first body of rod 1 has the axial force from first end 12 towards second end 13, take place screw thread auto-lock between the first body of rod 1 and the second body of rod 3, second body of rod 3 rotates along first direction along with first body of rod 1, when first body of rod 1 does not have the axial force from first end 12 towards second end 13, do not take place screw thread auto-lock between the first body of rod 1 and the second body of rod 3, first body of rod 1 rotates with second body of rod 3 relatively, thereby at least part of first body of rod 1 stretches out predetermined length from the centre bore 31.

As shown in fig. 1-5, the second rod 3 has a central hole 31, an internal thread is disposed in the central hole 31 and matches with the external thread of the first rod 1, and the lower end of the first rod 1 extends into the central hole 31 through thread matching.

When the first rod body 1 rotates along a first direction and axial force from top to bottom is applied to the first rod body 1, thread self-locking occurs between the first rod body 1 and the second rod body 3, friction torque generated between the external thread of the first rod body 1 and the internal thread of the second rod body 3 is larger than rotation torque which enables the first rod body 1 to rotate relative to the second rod body 3, at the moment, relative movement does not occur between the first rod body 1 and the second rod body 3, and the first rod body 1 drives the second rod body 3 to rotate along the first direction.

When the first rod 1 rotates along the first direction but the first rod 1 does not apply an axial force from top to bottom, the friction torque generated between the external thread of the first rod 1 and the internal thread of the second rod 3 is smaller than the rotation torque for rotating the first rod 1 relative to the second rod 3, and at this time, the first rod 1 rotates relative to the second rod 3, and the lower end portion of the first rod 1 moves upward relative to the second rod 3.

The drill 4 is arranged at one end of the second rod body 3 far away from the first rod body 1.

As shown in fig. 1-5, a drill 4 is disposed at the lower end of the second rod 3 for driving the second rod 3 to drill a hole.

According to the utility model discloses telescopic brill annotates integration stock through the cooperation of the first body of rod 1 with the second body of rod 3, realizes the flexible of stock, under the condition that does not increase stock length, increases anchor bolt support's degree of depth effectively, satisfies the less application scene demand of construction equipment stroke, sets up passageway 11 and mixed flow ware 2 in the first body of rod 1 simultaneously, effectively mixes the anchoring agent, has simple structure, the efficiency of construction is high, characteristics that construction quality is high.

In some embodiments, the retractable drilling and injection integrated anchor rod further comprises a limit nut 5 and a driving nut 6, the limit nut 5 is screwed on the first rod body 1, the driving nut 6 is screwed on the first rod body 1, when the driving nut 6 rotates along the first direction, the driving nut 6 is abutted against the limit nut 5, and the rotation torque applied to the limit nut 5 by the driving nut 6 is smaller than the rotation torque required by the limit nut 5 to rotate relative to the first rod body 1, so that the limit nut 5 limits the driving nut 6 to move towards the first end 12 of the first rod body 1, and the driving nut 6 drives the first rod body 1 to rotate along the first direction.

As shown in fig. 1 to 5, the upper end surface of the driving nut 6 is a first surface of the driving nut 6, the lower end surface is a second surface of the driving nut 6, the upper end surface of the limiting nut 5 is a first surface of the limiting nut 5, and the lower end surface is a second surface of the limiting nut 5, when the driving nut 6 rotates along the first direction, the driving nut 6 moves upward to stop the first surface of the driving nut 6 and the second surface of the limiting nut 5, and a rotation torque generated between the first surface of the driving nut 6 and the second surface of the limiting nut 5 due to friction and the like is smaller than a rotation torque required by the limiting nut 5 to rotate relative to the first rod body 1, so that the limiting nut 5 does not rotate relative to the first rod body 1, and the driving nut 6 is stopped by the limiting nut 5 and cannot move upward, thereby enabling the first rod body 1 to rotate along the first direction with the driving nut 6.

In some embodiments, when the drive nut 6 is rotated in a second direction opposite to the first direction, the drive nut 6 applies a pretension to the first rod 1 in a direction from the second end 13 towards the first end 12.

When the driving nut 6 rotates along the second direction, the driving nut 6 moves downwards along the first rod body 1 due to the fact that the second direction is opposite to the first direction, but the driving nut 6 is arranged on the anchor rod device and cannot move downwards, so that the first rod body 1 can be driven to move upwards relative to the driving nut 6 from bottom to top, and due to the fact that the first rod body 1 is fixed in a drill hole and cannot move, the driving nut 6 can apply the pre-tightening tension force on the first rod body 1 from bottom to top, and pre-tightening of the first rod body 1 is completed.

In some embodiments, the stop nut 5 is in point contact with the drive nut 6.

When the driving nut 6 rotates and rotates along the first direction, the limiting nut 5 abuts against the driving nut 6, the abutting position is in point contact, for example, the limiting nut 5 is an inclined-surface nut, the surface of the driving nut 6 abutting against the limiting nut 5 is a plane, and therefore the abutting position is in point contact, the rotating torque applied to the limiting nut 5 by the driving nut 6 at the moment is smaller than the rotating torque required by the limiting nut 5 to rotate relative to the first rod body 1, and the limiting driving nut 6 of the limiting nut 5 moves towards the first end 12 of the first rod body 1.

In some embodiments, the driving nut 6 includes a first section 61 and a second section 62, the central hole 31 of the first section 61 is a threaded hole, the central hole 31 of the second section 62 is a fitting hole 621, the diameter of the fitting hole 621 is larger than that of the threaded hole, the limit nut 5 is fitted in the fitting hole 621 with a gap between the outer circumferential surface of the limit nut 5 and the inner circumferential surface of the fitting hole 621.

As shown in fig. 1-2, the first section 61 of the driving nut is a lower section, the second section 62 of the driving nut is an upper section, the first section 61 and the second section 62 are connected in the up-down direction, the central hole of the first section 61 of the driving nut is a threaded hole, the central hole of the second section 62 of the driving nut is a mating hole 621, the threaded hole and the mating hole 621 are communicated with each other, the diameter of the matching hole 621 is larger than that of the threaded hole, a step is formed at the junction of the threaded hole and the matching hole 621, the step surface is a first surface of the driving nut, the limiting nut 5 is matched in the matching hole 621, the upper end surface of the limiting nut 5 is a second surface of the limiting nut, the first surface of the driving nut and the second surface of the limiting nut are opposite in the vertical direction, a gap is formed between the outer peripheral surface of the limiting nut 5 and the inner peripheral surface of the matching hole 621, to reduce the rotational torque generated to the limit nut 5 when the drive nut 6 is rotated in the first direction.

In some embodiments, the first rod body 1 is divided into a first rod section 14 and a second rod section 15 along the length direction of the first rod body 1, the limit nut 5 and the driving nut are located in the first rod section 14, the second rod section 15 is located in the central hole 31, and the external thread of the outer peripheral surface of the second rod section 15 is different from the external thread of the outer peripheral surface of the first rod section 14.

As shown in fig. 1-2, the first rod section 14 of the first rod body 1 is an upper rod section, the second rod section 15 is a lower rod section, the limit nut 5 and the driving nut 6 are sequentially arranged on the first rod section 14, the second rod section 15 extends into the central hole 31 from top to bottom, and the parameters such as the nominal size, the thread pitch and the like between the external threads on the peripheral surface of the first rod section 14 and the external threads on the peripheral surface of the second rod section 15 are different, so that the first rod section 14 is prevented from entering the central hole 31, accidents are caused, and the construction efficiency is reduced.

In some embodiments, the length of the second rod segment 15 is less than the length of the second rod 3.

As shown in fig. 1-2, the length of the second rod section 15 in the vertical direction is smaller than the length of the second rod 3 in the vertical direction, so as to prevent the lower end of the second rod section 15 from protruding from the lower end of the second rod 3, which may affect the normal operation of the drill 4.

In some embodiments, a spacer 16 is disposed between the first segment 14 and the second segment 15, and the outer surface of the spacer 16 is smooth.

As shown in fig. 3-4, a spacer section 16 is provided between the first segment 14 and the second segment 15 for spacing the first segment 14 from the second segment 15, and the outer circumferential surface of the spacer section 16 is free of external threads to prevent the spacer section 16 from being externally threaded

In some embodiments, the width of the drill bit 4 is less than the diameter of the central bore of the second rod.

As shown in fig. 2, the width of the drill 4 in the left-right direction is smaller than the diameter of the center hole of the second rod body 3, so that a channel is formed to inject the anchoring agent, the anchoring agent is injected into the drill hole through the channel to anchor the anchor rod, the anchoring is simple and efficient, and the construction efficiency is improved.

In some embodiments, the first rod 1 and the second rod 3 are both made of a corrosion resistant material.

In the process of drilling into, can produce a large amount of waste water, waste water has certain corrosivity, and first body of rod 1 and second body of rod 3 contact with waste water for a long time use corrosion-resistant material preparation first body of rod 1 and second body of rod 3, can improve the life of first body of rod 1 and second body of rod 3.

In the description of the present invention, it is to 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", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. The utility model provides a telescopic brill notes integration stock which characterized in that includes:

the first rod body is provided with a channel, a first end and a second end, the channel penetrates through the first rod body along the length direction of the first rod body, an external thread is arranged on the outer peripheral surface of the first rod body, and the external thread extends from the first end to the second end by a preset length along the length direction of the first rod body;

the flow mixer is arranged in the channel and is adjacent to the first end, and the flow mixer is spiral and is used for uniformly mixing the anchoring agent and then introducing the anchoring agent into the channel;

a second rod body provided with a central hole, at least a part of the first rod body adjacent to the second end being located in the central hole, an internal thread is arranged in the central hole and matched with the external thread of the first rod body, wherein the first rod rotates in a first direction with an axial force from the first end toward the second end, the first rod body and the second rod body are self-locked by screw threads, the second rod body rotates along with the first rod body along the first direction, when the first rod body does not have axial force from the first end to the second end, thread self-locking does not occur between the first rod body and the second rod body, the first rod is rotated relative to the second rod such that at least a portion of the first rod extends a predetermined length from within the central bore;

the drill bit is arranged at one end, far away from the first rod body, of the second rod body.

2. The telescopic drilling and grouting integrated anchor rod according to claim 1, further comprising a limit nut and a driving nut, wherein the limit nut is in threaded fit with the first rod body, the driving nut is in threaded fit with the first rod body, when the driving nut rotates along a first direction, the driving nut is abutted against the limit nut, and a rotation torque applied to the limit nut by the driving nut is smaller than a rotation torque required by the limit nut to rotate relative to the first rod body, so that the limit nut limits the driving nut to move towards the first end of the first rod body, and the driving nut drives the first rod body to rotate along the first direction.

3. The telescopic drill-injection integrated anchor rod of claim 2, wherein the drive nut applies a pre-tensioning force to the first rod in a direction from the second end toward the first end when the drive nut is rotated in a second direction opposite the first direction.

4. The telescopic drilling and injection integrated anchor rod of claim 3, wherein the abutting position of the limiting nut and the driving nut is point contact.

5. The telescopic drilling and injection integrated anchor rod according to claim 4, wherein the driving nut comprises a first section and a second section, the central hole of the first section is a threaded hole, the central hole of the second section is a matching hole, the diameter of the matching hole is larger than that of the threaded hole, the limiting nut is matched in the matching hole, and a gap is formed between the outer peripheral surface of the limiting nut and the inner peripheral surface of the matching hole.

6. The telescopic drilling and injection integrated anchor rod of claim 2, wherein the first rod body is divided into a first rod section and a second rod section along the length direction of the first rod body, the limit nut and the driving nut are positioned in the first rod section, the second rod section is positioned in the central hole, and the external thread on the outer peripheral surface of the second rod section is different from the external thread on the outer peripheral surface of the first rod section.

7. The telescopic drill-injection integrated anchor rod of claim 6, wherein the length of the second rod section is less than the length of the second rod body.

8. The telescopic drilling and injection integrated anchor rod as claimed in claim 7, wherein a separation section is arranged between the first rod section and the second rod section, and the outer peripheral surface of the separation section is smooth.

9. The telescopic drill-injection integrated rock bolt of claim 1, wherein the width of the drill bit is less than the diameter of the central bore of the second rod.

10. The telescopic drill-injection integrated anchor rod of claim 1, wherein the first rod body and the second rod body are both made of a corrosion resistant material.

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