CN214943961U

CN214943961U - Down-the-hole impact equipment capable of spraying high-pressure slurry at bottom

Info

Publication number: CN214943961U
Application number: CN202121586833.2U
Authority: CN
Inventors: 孟庆飞; 薛以兵; 刘运庆; 张东方; 黄金铭; 钟兴; 杜明礼; 王磊; 张韩君; 关延荣
Original assignee: Jiangsu Zhonghui Geotechnical Engineering Co ltd
Current assignee: Jiangsu Zhonghui Geotechnical Engineering Co ltd
Priority date: 2021-07-13
Filing date: 2021-07-13
Publication date: 2021-11-30
Anticipated expiration: 2031-07-13

Abstract

The utility model discloses a bottom can spray down-the-hole percussion equipment of high-pressure thick liquid relates to construction machinery technical field, is convenient for change the neck bush to reach the purpose of the injection direction of adjustment nozzle, its technical scheme main points are: the hollow bolt comprises a stud and a nut, the inner bushing extends out of the outer side of the nut along the axial direction of the hollow bolt, the inner bushing is arranged in the stud in a penetrating mode, and the inner bushing is detachably connected with the hollow bolt through a connecting piece.

Description

Down-the-hole impact equipment capable of spraying high-pressure slurry at bottom

Technical Field

The utility model relates to a construction machinery technical field, more specifically say, it relates to a bottom can spray down-the-hole percussion device of high-pressure thick liquid.

Background

Since the invention, the high-pressure jet grouting pile technology is widely applied to foundation reinforcement treatment and seepage prevention and water interception of projects such as foundation pits, water conservancy projects and the like.

Chinese patent publication No. CN206928898U discloses a down-the-hole percussion apparatus for bottom injection of high-pressure slurry, comprising: a drill stem; a down-the-hole impactor connected to the bottom end of the drill pipe, the down-the-hole impactor comprising: the drill bit comprises an upper port, a lower port, a hollow inner cavity positioned between the upper port and the lower port, a side wall surrounding the hollow inner cavity, an inner cylinder connected to the lower port, a sleeve connected to the outside of the inner cylinder, a down-the-hole impactor bit connected to the bottoms of the inner cylinder and the sleeve, and a nozzle arranged on the outer side of the sleeve; and a high-pressure air passage communicated with the drill pipe and the down-the-hole hammer is arranged between the drill pipe and the down-the-hole hammer. The nozzle is made of a hollow bolt, the hollow bolt comprising: the screw cap and the stud are sequentially arranged in the side wall in a penetrating mode from outside to inside, an inner bushing made of alloy is arranged in the hollow bolt, and the inner bushing extends out of the screw cap along the axial direction of the hollow bolt. The spraying direction of the nozzle is vertical to the connecting line of the upper port and the lower port.

However, when the ejection direction of the nozzle needs to be adjusted or the ejection direction of the manufactured nozzle is not correct, the ejection direction of the nozzle needs to be adjusted, and therefore the inner liner needs to be replaceable.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a bottom can spray down-the-hole percussion device of high-pressure thick liquid, its advantage lies in, is convenient for change the neck bush to reach the purpose of the injection direction of adjustment nozzle.

The above technical purpose of the present invention can be achieved by the following technical solutions: the down-the-hole impact equipment comprises a hollow bolt arranged on a sleeve and an inner bushing arranged in the hollow bolt, wherein the hollow bolt comprises a stud and a nut, the inner bushing extends out of the outer side of the nut along the axial direction of the hollow bolt, the inner bushing is arranged in the stud in a penetrating mode, and the inner bushing is detachably connected with the hollow bolt through a connecting piece.

Through adopting above-mentioned technical scheme, the setting of connecting piece makes neck bush and hollow bolt can dismantle and be connected, and this moment after the neck bush is installed on hollow bolt, if the direction slope of the interior hydrologic cycle of discovery neck bush perhaps unsatisfied operation requirement, can change the neck bush through the connecting piece to satisfy operation requirement, reach the neck bush of being convenient for change, in order to reach the purpose of the injection direction of adjustment nozzle.

Preferably: the connecting piece is including setting up a plurality of connecting blocks that the inside lining is close to nut one end outer wall, each the connecting block is along inside lining outer wall evenly distributed and all imbed in the nut, after each connecting block all imbeds in the nut, be equipped with the locating part that the restriction connecting block shifted out the nut on the nut.

Preferably: the locating part is including the go-between in embedding each connecting block and the nut, threaded connection has a plurality of check locks that get into in the sleeve pipe wall on the go-between, check lock one end and sleeve pipe wall threaded connection, the other end extend to the terminal surface that deviates from nut one side with the go-between.

Preferably: the locating part comprises a limiting rod which is in threaded connection with the connecting block, and one end of the limiting rod enters the nut and is in threaded connection with the nut.

Preferably: the utility model discloses a double-screw bolt screw in cover pipe, including double-screw bolt, first hole, second hole, connecting rod and third hole, the double-screw bolt screw in cover pipe is intraductal back, the first hole has been seted up on the double-screw bolt inner wall, the second hole has been seted up on the double-screw bolt outer wall, the second hole is greater than the first hole so far, the third hole with first hole intercommunication is seted up at second hole bottom, it is connected with first piece and second piece to slide respectively in first hole and the second hole, the second piece is unanimous with second hole size, first piece one end is passed through the connecting rod and is connected with the second piece, and the other end extends the one end that the second hole was kept away from in first hole, and is equipped with the interior bush of being convenient for and extrudees the first downthehole inclined plane of sliding into in the one end that extends, the connecting rod slides with third hole and is connected.

Preferably: the connecting rings are a plurality of arc-shaped connecting rings which are spliced with each other, gaps exist among the connecting rings, and the locking rods are in threaded connection with the connecting rings.

To sum up, the utility model discloses following beneficial effect has: the connecting piece set up make neck bush and hollow bolt can dismantle the connection, this moment when the neck bush install on hollow bolt after, if the direction slope of discovery neck bush interior hydrologic flow perhaps unsatisfied operation requirement, can change the neck bush through the connecting piece to satisfy operation requirement, reach and be convenient for change the neck bush, in order to reach the purpose of the injection direction of adjustment nozzle.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

FIG. 2 is a schematic structural view of the present embodiment for embodying the connection ring;

FIG. 3 is a schematic structural diagram for embodying interlinking of the present embodiment;

FIG. 4 is a schematic structural diagram of the present embodiment for embodying a stop lever;

fig. 5 is an enlarged schematic view of a portion a in fig. 4.

In the figure: 1. a sleeve; 11. an inner liner; 12. a stud; 13. a nut; 14. connecting blocks; 15. a connecting ring; 151. a locking lever; 152. a limiting rod; 16. a first hole; 161. a second hole; 162. a third aperture; 164. a first block; 165. a second block; 166. a connecting rod; 167. an inclined surface; 17. and (4) linking.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A down-the-hole impact device with a bottom capable of spraying high-pressure slurry is shown in figures 1 and 2 and comprises a hollow bolt arranged on a sleeve 1 and an inner bushing 11 arranged in the hollow bolt, wherein the hollow bolt comprises a stud 12 and a nut 13, the nut 13 is arranged on the outer wall of the sleeve 1, the inner bushing 11 extends out of the nut 13 along the axial direction of the hollow bolt, the inner bushing 11 is arranged in the stud 12 in a penetrating mode, and the inner bushing 11 is detachably connected with the hollow bolt through a connecting piece. The structure of the casing 1 may be the casing 1 structure in a down-the-hole percussion device for bottom injection of high pressure slurry disclosed in chinese patent publication No. CN 206928898U.

As shown in fig. 1 and 2, the connecting member is arranged to detachably connect the inner bushing 11 with the hollow bolt, and after the inner bushing 11 is mounted on the hollow bolt, if the water flowing direction in the inner bushing 11 is inclined or the use requirement is not met, the inner bushing 11 can be replaced by the connecting member to meet the use requirement, so that the inner bushing 11 can be replaced conveniently to adjust the spraying direction of the nozzle.

As shown in fig. 1 and 2, the connecting member includes a plurality of connecting blocks 14 disposed on an outer wall of one end of the inner bushing 11 close to the nut 13, each connecting block 14 is uniformly distributed along the outer wall of the inner bushing 11 and is embedded in the nut 13, after each connecting block 14 is embedded in the nut 13, the connecting block 14 limits the rotation of the inner bushing 11 in the stud 12, and a limiting member for limiting the connecting block 14 to move out of the nut 13 is disposed on the nut 13. The position of the connecting block 14 on the screw cap 13 is limited by the limiting piece, and further the position of the inner bushing 11 on the stud 12 and the screw cap 13 is limited, the operation is simple and convenient, when the inner bushing 11 needs to be disassembled, the limiting piece is released from limiting the connecting block 14, the inner bushing 11 can be pulled in the direction away from the stud 12, and at the moment, the connecting block 14 is moved out of the screw cap 13, so that the inner bushing 11 is convenient to disassemble.

As shown in fig. 1 and fig. 2, the limiting member includes a connecting ring 15 embedded in each connecting block 14 and the nut 13, a plurality of locking rods 151 entering into the wall of the casing 1 are connected to the connecting ring 15 by screw threads, one end of each locking rod 151 is connected to the wall of the casing 1 by screw threads, and the other end extends to the end face of the connecting ring 15 away from the nut 13. When it is desired to limit the position of the inner bushing 11 on the stud 12, the connection ring 15 is placed into the connection blocks 14 and the nuts 13, the connection ring 15 presses the respective connection block 14 against the nut 13, and then the locking rod 151 is rotated to screw-connect the locking rod 151 with the outer wall of the casing 1, thereby limiting the position of the connection ring 15, i.e., the connection block 14. When the locking rod 151 needs to be unscrewed from the connection ring 15, a second driving groove in a cross shape is formed at one end of the locking rod 151 away from the sleeve 1.

As shown in fig. 4, or, the limiting member includes a limiting rod 152 screwed on the connecting block 14, one end of the limiting rod 152 enters the nut 13 and is screwed with the nut 13, at this time, the limiting rod 152 is screwed with the connecting block 14 and the pipe wall of the sleeve 1, the connecting block 14 is fixed on the pipe wall of the sleeve 1, that is, the position of the inner bushing 11 is limited, the operation is convenient, and when the limiting rod 152 needs to be screwed down from the connecting block 14, one end of the limiting rod 152, which is far away from the sleeve 1, is provided with a first driving groove in a cross shape.

As shown in fig. 4 and 5, after the stud 12 is screwed into the casing 1, a first hole 16 is formed in the inner wall of the stud 12, a second hole 161 is formed in the outer wall of the stud 12, the second hole 161 is larger than the first hole 16, a third hole 162 communicated with the first hole 16 is formed in the bottom of the second hole 161, a first block 164 and a second block 165 are slidably connected in the first hole 16 and the second hole 161 respectively, the second block 165 and the second hole 161 have the same size, one end of the first block 164 is connected with the second block 165 through a connecting rod 166, the other end of the first block 164 extends out of one end of the first hole 16 far away from the second hole 161, an inclined surface 167 is arranged at the extended end of the first block, and the first block 164 is extruded and slid into the first hole 16 by the bushing 11, and the connecting rod 166 is slidably connected with the third hole 162.

As shown in fig. 4 and 5, after the stud 12 is screwed into the casing 1, the second block 165 is located in the second hole 161, an inlet hole for the second block 165 to enter is formed in the inner wall of the casing 1, when the inner bushing 11 slides into the stud 12, one end of the inner bushing 11 abuts against the inclined surface 167, at this time, along with the continuous entering of the inner bushing 11, the inclined surface 167 is extruded to gradually enter the first hole 16, so that the first block 164 enters the first hole 16, the connecting rod 166 slides in the third hole 162 and drives the second block 165 to enter the inlet hole in the inner wall of the casing 1, the position of the stud 12 is limited, and the connection strength between the stud 12 and the casing 1 is improved.

Alternatively, as shown in fig. 3, the connecting ring 15 may be a plurality of arc-shaped links 17 that are connected to each other, a gap exists between each link 17, and the locking rod 151 is screwed to the link 17. The purpose of this design is to facilitate the reduction of the machining precision of the connection rings 15, the provision of the respective links 17 facilitating the compression of the respective connection blocks 14.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A down-the-hole percussion device with a bottom capable of spraying high-pressure slurry comprises a hollow bolt arranged on a sleeve (1) and an inner bushing (11) arranged in the hollow bolt, wherein the hollow bolt comprises a stud (12) and a nut (13), the inner bushing (11) extends out of the outer side of the nut (13) along the axial direction of the hollow bolt, and the down-the-hole percussion device is characterized in that: the inner bushing (11) is arranged in the stud (12) in a penetrating mode, and the inner bushing (11) is detachably connected with the hollow bolt through a connecting piece.

2. A bottom-hole shotcrete high pressure slurry down-hole percussion device as claimed in claim 1, wherein: the connecting piece is including setting up a plurality of connecting blocks (14) that are close to nut (13) one end outer wall at inside bush (11), each in connecting block (14) along inside bush (11) outer wall evenly distributed and all imbed nut (13), after in each connecting block (14) all imbed nut (13), be equipped with the locating part that restriction connecting block (14) shifted out nut (13) on nut (13).

3. A bottom-hole shotcrete high pressure slurry down-hole percussion device as claimed in claim 2, wherein: the locating part is including go-between (15) of embedding in each connecting block (14) and nut (13), threaded connection has check lock lever (151) in a plurality of entering sleeve pipes (1) pipe walls on go-between (15), check lock lever (151) one end and sleeve pipes (1) pipe wall threaded connection, the other end extend to and deviate from the terminal surface on one side of nut (13) with go-between (15).

4. A bottom-hole shotcrete high pressure slurry down-hole percussion device as claimed in claim 2, wherein: the limiting part comprises a limiting rod (152) which is in threaded connection with the connecting block (14), and one end of the limiting rod (152) enters the nut (13) and is in threaded connection with the nut (13).

5. A down-the-hole percussive bottom-shootable high pressure slurry apparatus according to claim 2, 3 or 4, characterised in that: after the stud (12) is screwed into the sleeve (1), a first hole (16) is formed in the inner wall of the stud (12), a second hole (161) is formed in the outer wall of the stud (12), the second hole (161) is larger than the first hole (16) up to now, a third hole (162) communicated with the first hole (16) is formed in the hole bottom of the second hole (161), a first block (164) and a second block (165) are connected in the first hole (16) and the second hole (161) in a sliding mode respectively, the second block (165) is consistent with the second hole (161) in size, one end of the first block (164) is connected with the second block (165) through a connecting rod (166), the other end of the first block extends out of one end, far away from the second hole (161), and an inclined surface (167) convenient for the inner bushing (11) to extrude the first block (164) to slide into the first hole (16) is arranged at the extended end, the connecting rod (166) is connected with the third hole (162) in a sliding mode.

6. A bottom-hole shotcrete high pressure slurry down-hole percussion device as claimed in claim 3, wherein: the connecting ring (15) is a plurality of arc-shaped connecting rings (17) which are spliced with each other, gaps exist among the connecting rings (17), and the locking rod (151) is in threaded connection with the connecting rings (17).