CN210767516U - Grout sleeve feeding subassembly and cementer - Google Patents

Grout sleeve feeding subassembly and cementer Download PDF

Info

Publication number
CN210767516U
CN210767516U CN201921350871.0U CN201921350871U CN210767516U CN 210767516 U CN210767516 U CN 210767516U CN 201921350871 U CN201921350871 U CN 201921350871U CN 210767516 U CN210767516 U CN 210767516U
Authority
CN
China
Prior art keywords
grouting
channel
valve core
piston
passage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201921350871.0U
Other languages
Chinese (zh)
Inventor
郑文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujian Huichuan Internet Of Things Technology Science And Technology Co ltd
Original Assignee
Fujian Huichuan Internet Of Things Technology Science And Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujian Huichuan Internet Of Things Technology Science And Technology Co ltd filed Critical Fujian Huichuan Internet Of Things Technology Science And Technology Co ltd
Priority to CN201921350871.0U priority Critical patent/CN210767516U/en
Application granted granted Critical
Publication of CN210767516U publication Critical patent/CN210767516U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)

Abstract

The utility model provides a grouting sleeve feeding assembly and a grouting device, belonging to the field of grouting sleeve manufacturing; it is mainly used for injecting slurry into the grout sleeve. The grouting device comprises a feeding assembly and a filling indicating assembly. The feeding assembly is used for being connected with grouting holes of the grouting sleeves, the full-filling indicating assembly is used for being connected with the grouting holes of the grouting sleeves, and the electric grouting pump is connected with the feeding assembly so as to inject slurry into the sleeves. Due to the fact that the check valve is arranged on the grouting sleeve feeding assembly, the check valve can prevent the slurry which is not solidified from flowing back. Moreover, the pressure sensor can monitor the grouting pressure in real time; and back to the server to form big data.

Description

Grout sleeve feeding subassembly and cementer
Technical Field
The utility model relates to a grout sleeve makes the field, particularly, relates to a grout sleeve feeding subassembly and cementer.
Background
The grouting sleeve is used for connecting two sections of steel bars in the construction industry, the two sections of steel bars are respectively inserted into the sleeve from two ends of the sleeve, and two ends of the sleeve are closed; be provided with the injected hole and arrange the thick liquid hole on the outer wall at sleeve both ends, pour into the concrete into through the injected hole to the sleeve, air and unnecessary concrete in the sleeve can be followed and arrange the thick liquid hole and discharge. During construction, the grouting hole is directly connected with an electric grouting pump, and the electric grouting pump is used for driving the slurry into the sleeve; and after grouting, removing the grouting pipe. By adopting the construction mode, when the electric grouting pump stops working, slurry in the sleeve can flow back; also, it is inconvenient to perform the detection of the grouting pressure.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a grout sleeve feeding component, it can prevent the thick liquids backward flow and can implement monitoring grouting pressure.
Another object of the present invention is to provide a grouting device, which employs the above grouting sleeve feeding assembly; after finishing sleeve slip casting, fill the instruction subassembly and can send the pilot signal.
The utility model discloses a realize like this:
a grout sleeve feed assembly comprising a feed structure and a check valve; the feeding structure comprises a three-way pipe, and the three-way pipe comprises a middle pipe, a feeding pipe and a discharging pipe;
the middle pipe is provided with a pressure sensor, the feeding pipe is used for being connected with a grouting pump, the discharging pipe is used for being connected with the feeding end of a check valve, and the discharging end of the check valve is used for being connected with a grouting hole of the grouting sleeve.
Further, the method comprises the following steps of;
the check valve comprises a valve body, a valve core and an elastic piece; the valve body comprises a fluid channel, the valve core is arranged in the fluid channel, one end of the elastic part is connected with the valve core, and the other end of the elastic part is connected with the valve body; the elasticity of the elastic piece enables the valve core to block the fluid channel.
Further, the method comprises the following steps of;
the fluid channel comprises a large-diameter channel, a small-diameter channel and a conical channel, and the large-diameter channel is communicated with the small-diameter channel through the conical channel;
the valve core is arranged in the large-diameter channel and comprises a cylindrical section and a conical section which are connected with each other, and the cylindrical section is in sliding fit with the inner wall of the large-diameter channel; a valve core channel is arranged on the valve core;
the elastic force of the elastic piece enables the conical surface of the conical section to be attached to the inner surface of the conical channel, so that the valve core channel is blocked; when the fluid flows from the small-diameter channel to the large-diameter channel, the fluid can push the valve core, so that the conical surface of the conical section is separated from the inner surface of the conical channel, and the valve core channel is opened.
Further, the method comprises the following steps of;
the valve core channel extends along the axial direction of the valve core and extends from the conical surface of the conical section to the end surface of the cylindrical section.
Further, the method comprises the following steps of;
the pressure sensor comprises a data sending module, and the data sending module is used for sending the pressure signal to the server.
Further, the method comprises the following steps of;
and a quick-change connector is arranged on the discharge pipe.
A grouting apparatus comprising a fill indicator assembly and a grout sleeve feed assembly;
the full-filling indicating assembly comprises a cylinder and a piston, one end of the cylinder is used for being connected with a grout discharging hole of the grouting sleeve, and the other end of the cylinder is provided with a contact switch; the piston is arranged in the cylinder and is in sliding fit with the cylinder; when the piston moves, the piston can touch the contact switch, so that the contact switch sends out an indication signal.
Further, the method comprises the following steps of;
the full indication assembly further comprises an end cover, the end cover is connected with the end of the barrel, and the contact switch is arranged on the inner surface of the end cover.
Further, the method comprises the following steps of;
the full indication assembly further comprises a compression spring, one end of the compression spring is abutted to the piston, and the other end of the compression spring is abutted to the end cover.
Further, the method comprises the following steps of;
the full indication assembly further comprises a piston rod, the piston rod is connected with the piston, and the piston rod can touch the contact switch.
The utility model has the advantages that:
the utility model discloses a grout sleeve feeding subassembly and cementer that obtain through above-mentioned design, when using, connect inlet pipe with the slip casting pipe of electronic grouting pump, the thick liquids enters into the sleeve through inlet pipe, discharging pipe and check valve; after the thick liquids in the sleeve is filled, thick liquids from row thick liquids hole entering into the barrel of filling indication component and promote the piston motion, until the piston touch contact switch, contact switch sends and fills the signal. At this time, the electric grouting pump is turned off, and the grouting pipe is disconnected from the feeding pipe. Due to the fact that the check valve is arranged on the grouting sleeve feeding assembly, the check valve can prevent the slurry which is not solidified from flowing back. And, pressure sensor can real-time supervision slip casting pressure.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic view of an assembly structure of a grout discharging device and a grouting sleeve according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a check valve according to an embodiment of the present invention.
Icon: 100-a feeding assembly; 110-a feed structure; 112-a feed pipe; 114-a discharge pipe; 116-an intermediate tube; 118-a pressure sensor; 120-a check valve; 122-a valve body; 124-valve core; 1241-cylindrical section; 1242-conical section; 1243-spool passage; 126-a resilient member; 130-a fluid channel; 132-large diameter channel; 134-minor diameter channel; 136-a tapered channel; 140-quick change coupling; 200-fill indication assembly; 210-a barrel; 220-a piston; 230-a piston rod; 240-contact switch; 250-end cap; 260-indicator light; 300-grouting sleeve; 310-grouting holes; 320-slurry discharge holes; 330-reinforcing steel bars.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
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; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. 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 description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the present disclosure, unless otherwise expressly stated or limited, the first feature may comprise both the first and second features directly contacting each other, and also may comprise the first and second features not being directly contacting each other but being in contact with each other by means of further features between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Example (b):
referring to fig. 1, the present embodiment provides a grouting apparatus, which is mainly used for injecting slurry into a grouting sleeve 300, wherein two ends of the grouting sleeve are provided with reinforcing bars 330. The grouting apparatus includes a feeding assembly 100 and a fill indicating assembly 200. The feeding assembly 100 is adapted to be connected with the grout hole 310 of the grout sleeve 300, the full indication assembly 200 is adapted to be connected with the grout discharge hole 320 of the grout sleeve 300, and the electric grout pump is connected with the feeding assembly 100 to inject grout into the grout sleeve.
The feed assembly 100 includes a feed structure 110 and a check valve 120, the feed structure 110 being connected to the check valve 120. Specifically, feed structure 110 comprises a tee comprising a feed tube 112, a discharge tube 114, and an intermediate tube 116; in this case, feed pipe 112 and discharge pipe 114 are arranged in line, and intermediate pipe 116 is arranged perpendicularly to discharge pipe 114. The end of the feed tube 112 is internally threaded for connection to a grout tube. The end of the tapping pipe 114 is provided with a quick-change coupling 140 to facilitate quick assembly and disassembly with the non-return valve 120. The intermediate pipe 116 is provided with a pressure sensor 118 for monitoring the grouting pressure. The pressure sensor 118 also includes a data transmission module that is capable of transmitting the collected data back to the server terminal in real time. The pressure sensor 118 may be purchased directly from the wireless pressure sensor 118, and a detailed description of the specific structure thereof is omitted for the sake of avoiding redundancy.
Referring to fig. 2, the check valve 120 mainly functions to prevent the slurry from flowing backward. The check valve 120 in the present embodiment includes a valve body 122, a spool 124, and an elastic member 126; the valve body 122 is a hollow tubular structure, and a fluid passage 130 is provided inside thereof. The valve core 124 is disposed in the fluid passage 130, and the valve core 124 blocks the fluid passage 130 by the elastic member 126. During grouting, the pressure of the slurry overcomes the elastic force of the elastic member 126, so that the valve core 124 is pushed open and the fluid passage 130 is opened.
Specifically, the fluid passage 130 includes, in order of the flow direction of the fluid, a large-diameter passage 132, a tapered passage 136, and a small-diameter passage 134; the large-diameter passage 132 communicates through the tapered passage 136, that is, the large-diameter passage 132 connects with the large end of the tapered passage 136, and the small-diameter passage 134 connects with the small end of the tapered passage 136. The valve core 124 is a solid of revolution, and includes a cylindrical section 1241 and a conical section 1242 connected to each other, wherein the cylindrical section 1241 is disposed in the large diameter passage 132, and the outer circumferential wall thereof is matched with the inner circumference of the large diameter passage 132. As the valve spool 124 slides along the large diameter passage 132, the tapered surface of the tapered section 1242 of the valve spool 124 engages or disengages from the surface of the tapered passage 136. In addition, a spool passage 1243 is provided on the spool 124, and the spool passage 1243 extends from the tapered surface of the tapered end to the end surface of the cylindrical section 1241. In order to facilitate cleaning of slurry left in the valve core passage 1243, in this embodiment, the valve core passage 1243 is formed by a plurality of grooves formed in the circumferential surface of the cylindrical section 1241, and the grooves extend along the axial direction of the valve core 124; when the spool 124 disengages from the surface of the tapered passage, slurry can pass from the small diameter passage 134 through the gap at the end of the tapered section into the spool passage 1243, then into the large diameter passage 132, and finally through the grout hole into the grout sleeve 300.
The circular end surface of the cylindrical section 1241 of the valve core 124 is provided with a blind hole, and the elastic member 126 is a compression spring embedded in the blind hole. One end of the compression spring is abutted against the bottom of the blind hole, and the other end of the compression spring is abutted against the end part of the valve body 122; the compression spring maintains the check valve 120 in a normally closed state.
The full indicating assembly 200 includes a cylinder 210, a piston 220 and a piston rod 230, and one end of the cylinder 210 is connected to the grout outlet of the grout sleeve 300 through a connection pipe and the other end is provided with an end cap 250. The inner surface of the end cap 250 is provided with a contact switch 240 and the outer surface is provided with an indicator light 260. The piston 220 is disposed in the cylinder 210, and the piston rod 230 is vertically connected to the middle of the piston 220 and disposed between the piston 220 and the end cap 250. A compression spring is sleeved on the piston rod 230, one end of the compression spring is abutted with the piston 220, and the other end of the compression spring is abutted with the end cover 250; the compression spring forces the piston 220 away from the end cap 250. When the grouting sleeve 300 is filled with the grout, the grout overflows from the grout outlet and enters the cylinder 210 so as to push the piston 220 to move in a direction of overcoming the elastic groove of the compression spring to be close to the end cover 250; after moving to a certain position, the piston rod 230 collides with the contact switch 240, and the indicator lamp 260 is turned on after the contact switch 240 is turned on.
In order to discharge the gas in the grouting sleeve during grouting, the connecting pipe of the full-grouting indicating assembly 200 is also provided with an exhaust hole which is blocked by geotextile; so that it can only be used to remove moisture and gas while preventing slurry from leaking out of the vents. That is, the full indicator assembly 200 has a drain and vent function.
The utility model provides a cementer's theory of operation and beneficial effect as follows:
when in use, the outlet of the check valve 120 is connected with the grouting hole 310 of the grouting sleeve 300, the electric grouting pump is started, and slurry enters the check valve 120 through the feeding structure 110; the pressure of the slurry opens the check valve 120, allowing the slurry to pass through the check valve 120 into the grout hole 310, thereby filling the grout sleeve 300. After the grouting sleeve 300 is filled, a certain time is required to be loaded, the excessive slurry overflows from the slurry discharge hole 320 to the full indicating assembly 200, and then the slurry pushes the piston 220 in the cylinder 210 to move and collides the contact switch 240 through the end of the piston rod 230, and the indicating lamp 260 is turned on. Also, during the grouting process, the pressure sensor 118 on the feeding structure 110 can monitor the pressure data in real time and send a signal back to the server. A sensor may be further provided at the upper end of the grout sleeve 300 for monitoring the pressure inside the grout sleeve 300 and transmitting the pressure value back to the server. The big data is formed by monitoring the grouting pressure on the plurality of grouting sleeves 300 and the internal pressure. In addition, the grouting time, the grouting place and the information of the operator of the grouting sleeve can be sent back to the server through the corresponding data return device.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A grout sleeve feed assembly, comprising a feed structure and a check valve; the feeding structure comprises a three-way pipe, and the three-way pipe comprises a middle pipe, a feeding pipe and a discharging pipe;
the middle pipe is provided with a pressure sensor, the feeding pipe is used for being connected with a grouting pump, the discharging pipe is used for being connected with the feeding end of a check valve, and the discharging end of the check valve is used for being connected with a grouting hole of the grouting sleeve.
2. A grout sleeve feed assembly of claim 1, wherein the check valve comprises a valve body, a valve spool and a resilient member;
the valve body comprises a fluid channel, the valve core is arranged in the fluid channel, one end of the elastic part is connected with the valve core, and the other end of the elastic part is connected with the valve body; the elasticity of the elastic piece enables the valve core to block the fluid channel.
3. A grout sleeve feed assembly according to claim 2, wherein the fluid passage comprises a major diameter passage, a minor diameter passage and a tapered passage, the major diameter passage and the minor diameter passage communicating through the tapered passage;
the valve core is arranged in the large-diameter channel and comprises a cylindrical section and a conical section which are connected with each other, and the cylindrical section is in sliding fit with the inner wall of the large-diameter channel; a valve core channel is arranged on the valve core;
the elastic force of the elastic piece enables the conical surface of the conical section to be attached to the inner surface of the conical channel, so that the valve core channel is blocked; when the fluid flows from the small-diameter channel to the large-diameter channel, the fluid can push the valve core, so that the conical surface of the conical section is separated from the inner surface of the conical channel, and the valve core channel is opened.
4. A grout sleeve feed assembly according to claim 3, wherein the spool passage extends in the axial direction of the spool and extends from the tapered face of the tapered section to the end face of the cylindrical section.
5. A grout sleeve feed assembly according to claim 1, wherein the pressure sensor comprises a data transmission module for transmitting a pressure signal to a server.
6. A grout sleeve feed assembly according to claim 1, wherein a quick change coupling is provided on the tapping pipe.
7. A grouting device, characterised in that it comprises a fill indicator assembly and a grouting sleeve feed assembly according to any one of claims 1 to 6;
the full-filling indicating assembly comprises a cylinder and a piston, one end of the cylinder is used for being connected with a grout discharging hole of the grouting sleeve, and the other end of the cylinder is provided with a contact switch; the piston is arranged in the cylinder and is in sliding fit with the cylinder; when the piston moves, the piston can touch the contact switch, so that the contact switch sends out an indication signal.
8. The grouting device of claim 7, wherein the fill indicator assembly further comprises an end cap connected to an end of the barrel, the contact switch being disposed on an inner surface of the end cap.
9. The grouting device of claim 8, wherein the fill indicator assembly further comprises a compression spring having one end abutting the piston and another end abutting the end cap.
10. The grouting device of claim 7, wherein the fill indicator assembly further comprises a piston rod connected to the piston, the piston rod being capable of touching the contact switch.
CN201921350871.0U 2019-08-20 2019-08-20 Grout sleeve feeding subassembly and cementer Active CN210767516U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921350871.0U CN210767516U (en) 2019-08-20 2019-08-20 Grout sleeve feeding subassembly and cementer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921350871.0U CN210767516U (en) 2019-08-20 2019-08-20 Grout sleeve feeding subassembly and cementer

Publications (1)

Publication Number Publication Date
CN210767516U true CN210767516U (en) 2020-06-16

Family

ID=71033439

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921350871.0U Active CN210767516U (en) 2019-08-20 2019-08-20 Grout sleeve feeding subassembly and cementer

Country Status (1)

Country Link
CN (1) CN210767516U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111980304A (en) * 2020-07-23 2020-11-24 中国十七冶集团有限公司 Self-closing grouting sleeve grouting opening interface device and construction method
CN112081380A (en) * 2020-09-16 2020-12-15 广东博智林机器人有限公司 Grouting gun for sleeve grouting and sleeve grouting equipment
CN113256606A (en) * 2021-06-15 2021-08-13 福建汇川物联网技术科技股份有限公司 Grouting fullness monitoring method and device, electronic equipment and storage medium
CN113846769A (en) * 2021-09-09 2021-12-28 富利建设集团有限公司 Precast concrete shear force wall installation slip casting detection device
CN114076201A (en) * 2020-08-21 2022-02-22 广东博智林机器人有限公司 Hole grouting device and grouting equipment
CN114278015A (en) * 2021-12-13 2022-04-05 皓耀时代(福建)集团有限公司 Connecting structure and construction method for building floor and wall

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111980304A (en) * 2020-07-23 2020-11-24 中国十七冶集团有限公司 Self-closing grouting sleeve grouting opening interface device and construction method
CN114076201A (en) * 2020-08-21 2022-02-22 广东博智林机器人有限公司 Hole grouting device and grouting equipment
CN114076201B (en) * 2020-08-21 2024-02-13 广东博智林机器人有限公司 Hole grouting device and grouting equipment
CN112081380A (en) * 2020-09-16 2020-12-15 广东博智林机器人有限公司 Grouting gun for sleeve grouting and sleeve grouting equipment
CN113256606A (en) * 2021-06-15 2021-08-13 福建汇川物联网技术科技股份有限公司 Grouting fullness monitoring method and device, electronic equipment and storage medium
CN113846769A (en) * 2021-09-09 2021-12-28 富利建设集团有限公司 Precast concrete shear force wall installation slip casting detection device
CN114278015A (en) * 2021-12-13 2022-04-05 皓耀时代(福建)集团有限公司 Connecting structure and construction method for building floor and wall

Similar Documents

Publication Publication Date Title
CN210767516U (en) Grout sleeve feeding subassembly and cementer
CN107605461B (en) Observation method of mine rock mass drilling gas plugging and extraction integrated system
CN102348899A (en) Drain liquid relief system for a subsea compressor and a method for draining the subsea compressor
CN116971746A (en) Floating hoop with sealing failure prevention function for well cementation
CN210346849U (en) Full indicating device
CN207830995U (en) A kind of pressure measuring unit
CN202903518U (en) Novel vibration piston sampling device
CN214251197U (en) Adjustable multi-liquid level floating ball sensor
CN210770208U (en) Portable leaking stoppage device
CN207961160U (en) A kind of transfer fuel tank for shield separate launching
CN114166409B (en) Grouting sleeve grouting pressure detection plug, grouting equipment and grouting method
CN207051042U (en) A kind of active enclosed sampling portable unit of environment-friendly type
CN108916431B (en) Lifting check valve for oil field oil transportation system
CN219808473U (en) Sewage inverted siphon overhauls belt cleaning device
CN221404563U (en) Detection device
CN110656931A (en) Mining hydraulic drilling-following aperture measuring device and method
CN105510041B (en) A kind of pipeline applied to water flow testing stand
CN213269816U (en) Continuous sand-flushing drilling and plugging tool for continuous steering gear and oil pipe
CN212275184U (en) Detection apparatus for hydraulically controlled reversing valve
CN218098892U (en) Experimental device for evaluating performance of water-dissolving locking agent
CN217811041U (en) Grouting reinforcement equipment
CN111255408A (en) Water injection pressure measurement blocking device
CN213706096U (en) Telescopic lubricating oil bottle
CN221535930U (en) Rotatable filter device and rotatable filter system
CN218222491U (en) Liquid-transfering gun

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant