CN115506583A - Embedded sleeve installation device in floor slab and embedded sleeve installation method - Google Patents
Embedded sleeve installation device in floor slab and embedded sleeve installation method Download PDFInfo
- Publication number
- CN115506583A CN115506583A CN202211265194.9A CN202211265194A CN115506583A CN 115506583 A CN115506583 A CN 115506583A CN 202211265194 A CN202211265194 A CN 202211265194A CN 115506583 A CN115506583 A CN 115506583A
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- sleeve
- floor
- hole
- drawknot
- embedded
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
- E04G15/06—Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
- E04G15/06—Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
- E04G15/063—Re-usable forms
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention discloses a pre-buried sleeve installation device in a floor slab and a pre-buried sleeve installation method, which comprise the following steps: the positioning plate is provided with a plurality of perspective holes, the perspective holes are arranged along the radial direction of the positioning plate, scale marks are formed on the positioning plate and are arranged along the radial direction of the positioning plate, the positioning plate is coaxially connected with a drawknot sleeve, a through hole is formed in the floor bottom die, an embedded sleeve is placed on the inner side of the floor bottom die and supported on the positioning plate, the embedded sleeve and the positioning plate are coaxially arranged, the drawknot sleeve penetrates through the through hole, and the lower end of the drawknot sleeve extends to the lower portion of the floor bottom die; the locking disc is detachably arranged at the lower end of the drawknot sleeve and is provided with a plurality of threaded holes, and the threaded holes are arranged along the circumferential direction of the locking disc; the levelness indicator is arranged on the locking disc; and the leveling screw is screwed in the threaded hole and supported on the floor bottom die. The invention solves the problems of time and labor waste and material waste of the existing method for installing the embedded sleeve in the floor slab.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to an embedded sleeve installation device in a floor slab and an embedded sleeve installation method.
Background
The pre-buried sleeve in the construction project is a hole reserved for a pipe to pass through components such as brick walls, concrete beams, concrete walls, floor slabs and the like, and is suitable for the places where pipelines such as civil air defense, underground engineering, chemical engineering, steel, tap water, sewage treatment, house construction and the like pass through walls, floor slabs and the like and require strict water resistance. The pre-buried sleeve pipe can avoid the later stage pipeline to pass the destruction to the concrete when the floor construction, also makes things convenient for the pipeline to overhaul when damaging.
However, most of the existing building projects install the casing pipes in the floor slab by reserving the PVC casing pipes with the specifications 1 to 2 larger than the casing pipes, removing the PVC casing pipes after the floor slab is poured, placing the steel casing pipes required by the paper design according to the positions, and performing secondary grouting at the gaps between the steel casing pipes and the floor slab after the placement, which wastes labor and materials and has the risk of wrong installation of the casing pipe positions.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
In order to overcome the defects in the prior art, an embedded sleeve installation device in a floor slab and an embedded sleeve installation method are provided so as to solve the problems that the existing embedded sleeve installation method in the floor slab is time-consuming and labor-consuming and takes materials.
In order to achieve the above object, there is provided a pre-buried sleeve installation device in a floor slab, comprising:
the positioning plate is provided with a plurality of perspective holes, the perspective holes are arranged along the radial direction of the positioning plate, scale marks are formed on the positioning plate and arranged along the radial direction of the positioning plate, the positioning plate is coaxially connected with a drawknot sleeve, a through hole is formed in a floor slab bottom die, a pre-buried sleeve is placed on the inner side of the floor slab bottom die and supported on the positioning plate, the pre-buried sleeve and the positioning plate are coaxially arranged, the drawknot sleeve is arranged in the through hole in a penetrating mode, and the lower end of the drawknot sleeve extends to the lower portion of the floor slab bottom die;
the locking disc is detachably mounted at the lower end of the drawknot casing pipe, a plurality of threaded holes are formed in the locking disc, and the plurality of threaded holes are formed in the circumferential direction of the locking disc;
the indicator is used for detecting the levelness of the locking plate and is arranged on the locking plate;
and the leveling screw is screwed in the threaded hole and supported on the floor bottom die.
Furthermore, the perspective hole is provided with a near end close to the circle center of the positioning disc and a far end far away from the circle center, a sliding block is arranged in the perspective hole in a sliding mode, a supporting plate is formed at the lower portion of the sliding block, the supporting plate extends to the lower portion of the positioning disc and abuts against the inner wall of the embedded sleeve, and a driving assembly used for driving the sliding block is installed between the sliding block and the near end.
Further, the driving assembly includes:
the movable shaft is rotatably arranged at the near end and is arranged along the radial direction of the positioning disc;
the threaded sleeve is connected to the sliding block, an external thread is formed on the movable shaft, and the movable shaft is in threaded connection with the threaded sleeve.
Further, the driving assembly is an electric hydraulic push rod.
Furthermore, fins which are vertically arranged are respectively formed on two opposite sides of the locking disc.
Further, the indicator is a bubble level.
Furthermore, a shaft hole is formed in the axis of the locking disc, and the drawknot casing pipe is inserted into the shaft hole.
Furthermore, an external thread is formed outside the drawknot casing pipe, an internal thread is formed in the shaft hole, and the shaft hole is in threaded connection with the drawknot casing pipe.
The invention provides an installation method of an embedded sleeve installation device in a floor slab, which comprises the following steps:
the method comprises the following steps that a laser lamp is vertically arranged on a floor, so that a laser ray of the laser lamp is emitted to the axis of the installation position of a pre-buried sleeve on a bottom die of a floor slab of an upper floor slab;
a through hole is formed in the axis;
vertically arranging the embedded sleeve on the floor slab bottom die;
placing a positioning disc on the embedded sleeve, so that a drawknot sleeve of the positioning disc penetrates through the embedded sleeve and the through hole and extends to the lower part of the floor slab bottom die;
adjusting the position of the positioning disc to enable the laser ray to be coaxially arranged with the positioning disc;
after the positioning disc and the laser ray are coaxially arranged, the position of the embedded sleeve is adjusted based on the radius of the embedded sleeve, and the position of the pipe wall of the embedded sleeve on a scale mark is observed through the plurality of perspective holes, so that the positions of the pipe wall observed by the plurality of perspective holes on the scale mark are consistent;
installing a locking disc at the lower end of the pulling sleeve, so that the leveling screw is supported on the floor bottom die to lock the position of the embedded sleeve on the floor bottom die;
based on the indicating piece, a plurality of leveling screws are adjusted, so that the locking disc and the positioning disc are arranged in the horizontal direction, and the embedded sleeve is arranged in the vertical direction.
The embedded sleeve mounting device in the floor slab has the advantages that when the embedded sleeve mounting device is used, the central point of the positioning disc is positioned in a mode that an infrared laser ray penetrates through the central hole of the positioning disc, and the sleeve position deviation caused by errors of the wall template when the side wall template returns to the ruler is avoided. After the positioning plate is accurately positioned, the position of the embedded sleeve can be quickly determined through the perspective hole, so that the embedded sleeve and the positioning plate are coaxially arranged and can be quickly and accurately placed to the installation position, finally, the locking plate and the positioning plate are horizontally corrected through the leveling screw rod and the indicating piece, the verticality of the embedded sleeve is corrected, the precision of the embedded sleeve during installation is greatly improved, and the problem that pipelines cannot be installed due to the fact that the centers of the sleeves are not aligned during multi-layer building construction is solved. The embedded sleeve mounting device in the floor slab is used for mounting embedded sleeves, the embedded sleeves are mounted in one step, the construction efficiency is improved, secondary mounting in the later period is avoided, the construction period and the cost are saved, and the embedded sleeve mounting device can be detached and reused after concrete pouring is finished.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 is a schematic structural view of an embedded bushing installation device in a floor slab according to an embodiment of the present invention.
Fig. 2 is a sectional view of a buried sleeve installation device in a floor slab according to an embodiment of the present invention.
FIG. 3 is a cross-sectional view of a puck according to an embodiment of the present invention.
FIG. 4 is a top view of a puck according to an embodiment of the present invention.
FIG. 5 is a schematic structural diagram of a locking plate according to an embodiment of the present invention.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1 to 5, the present invention provides an embedded bushing installation apparatus in a floor slab, including: positioning plate 1, locking plate 2, indicator 3 and leveling screw 4.
Wherein, the positioning plate is in a disc shape. The positioning plate 1 is provided with a plurality of perspective holes 10. The see-through holes 10 are arranged in the radial direction of the puck 1. Referring to fig. 2 and 4, the number of the see-through holes is four. The four perspective holes are arranged at equal intervals.
The puck 1 is formed with graduation marks 11. The scale marks are arranged opposite to the penetrating holes and are in one-to-one correspondence. The scale marks are used for displaying the radius of the embedded sleeve. The graduation marks 11 are arranged in the radial direction of the positioning plate 1. The positioning plate 1 is coaxially connected with a drawknot sleeve 12.
The floor bottom die 5 is provided with a through hole. The inner side of the floor bottom die 5 is provided with a pre-buried sleeve 7. The embedded sleeve 7 is supported on the positioning plate 1. The embedded sleeve 7 is arranged coaxially with the positioning plate 1. A drawknot casing 12 is disposed through the perforations. The lower end of the drawknot casing 12 extends to the lower part of the floor bottom die 5.
The closure disk 2 is detachably mounted to the lower end of the drawknot casing 12. The locking disc 2 is provided with a plurality of threaded holes. A plurality of threaded holes are provided in the circumferential direction of the locking disk 2. In the present embodiment, the number of screw holes is four. The four threaded holes are arranged at equal intervals. The four threaded holes are arranged along the circumferential direction of the locking disc. The outer diameter of the locking disc is larger than or equal to that of the positioning disc. The drawknot casing is coaxially connected to the positioning disc and also coaxially connected to the locking disc. The positioning disc and the locking disc are coaxially arranged.
The indicator 3 is mounted to the lock disk 2. The indicator 3 is used for detecting the levelness of the lock plate 2;
the leveling screw rod 4 is screwed in the threaded hole and supported on the floor bottom die 5.
In the embodiment, four leveling screws are respectively screwed in four threaded holes of the locking disc. After the embedded sleeve is locked on the upper part of the bottom die of the floor slab by the locking plate, the levelness of the locking plate and the positioning plate and the verticality of the embedded sleeve are finely adjusted by the adjusting bolt.
According to the embedded sleeve mounting device in the floor slab, the central point of the positioning disc is positioned in a mode that the infrared laser ray penetrates through the central hole of the positioning disc when the embedded sleeve mounting device is used, and the sleeve position deviation caused by errors of the wall template when the side wall template returns to the ruler is avoided. After the positioning plate is accurately positioned, the position of the embedded sleeve can be quickly determined through the perspective hole, so that the embedded sleeve and the positioning plate are coaxially arranged and can be quickly and accurately placed to the installation position, finally, the locking plate and the positioning plate are horizontally corrected through the leveling screw rod and the indicating piece, the verticality of the embedded sleeve is corrected, the precision of the embedded sleeve during installation is greatly improved, and the problem that pipelines cannot be installed due to the fact that the centers of the sleeves are not aligned during multi-layer building construction is solved.
The embedded sleeve mounting device in the floor slab is used for mounting the embedded sleeves in one step, secondary mounting in the later period is avoided, the construction period and the cost are saved, and the embedded sleeve mounting device can be detached and reused after concrete pouring is finished.
Referring to fig. 3, in the present embodiment, the perspective hole 10 has a proximal end close to the center of the positioning plate 1 and a distal end far from the center. A slide block 61 is slidably disposed in the see-through hole 10. A pressing plate 62 is formed at the lower portion of the slider 61. The abutting plate 62 extends to the lower part of the positioning plate 1 and abuts against the inner wall of the embedded sleeve 7. Between the slider 61 and the proximal end is mounted a drive assembly 6 for driving the slider 61.
After the embedded sleeve is adjusted in place and accurately arranged at the installation position, the embedded sleeve is fixed through the abutting plate, so that the embedded sleeve is prevented from moving in the horizontal direction, and the embedded point position of the embedded sleeve is accurate and stable.
Specifically, in the present embodiment, the driving assembly 6 includes: a movable shaft 63 and a threaded sleeve 64. A movable shaft 63 is rotatably mounted at the proximal end. The movable shaft 63 is disposed in the radial direction of the positioning plate 1. The threaded sleeve 64 is connected to the slider 61. The movable shaft 63 is formed with an external thread. The movable shaft 63 is screwed to the threaded sleeve 64.
In some embodiments, the drive assembly is an electro-hydraulic ram.
Referring to fig. 1 and 5, the locking plate 2 is formed with vertically arranged fins 21 on opposite sides thereof, respectively. The fins of the locking disc are arranged at the bottom of the locking disc, so that the locking disc can be easily rotated by a constructor through the fins.
In the present embodiment, the indicator 3 is a bubble level. The bubble level of the indicator member has two. The two bubble levels are vertically arranged. When the air bubbles of the two air bubble levels are arranged in the middle, the locking plate and the positioning plate are horizontally arranged.
As a preferred embodiment, the axis of the locking plate 2 is provided with an axial hole. The drawknot casing 12 is inserted into the shaft hole. Specifically, the exterior of the drawknot casing 12 is formed with external threads. The shaft hole is formed with an internal thread. The shaft bore is threadedly connected to the drawknot sleeve 12.
The invention provides an installation method of an embedded sleeve installation device in a floor slab, which is characterized by comprising the following steps:
s1: the laser lamp is vertically arranged on the floor, so that a laser ray 8 of the laser lamp is emitted to the axis of the mounting position of the embedded sleeve 7 on the bottom die 5 of the floor slab of the upper floor.
Install the highlight laser lamp on the floor of bottom, the laser ray of the vertical setting of highlight laser lamp transmission.
Further, the highlight laser lamp sets up in the axle center department of buried sleeve's mounted position.
S2: a through hole is arranged at the axis.
And a hole is formed in the bottom floor die of the upper floor by using the hole opener, and the inner diameter of the hole is larger than the outer diameter of the drawknot casing.
S3: an embedded sleeve 7 is vertically arranged on the bottom die 5 of the floor slab.
S4: and placing the positioning plate 1 on the embedded sleeve 7, so that the drawknot sleeve 12 of the positioning plate 1 penetrates through the embedded sleeve 7 and the through hole and extends to the lower part of the floor slab bottom die 5.
S5: the position of the puck 1 is adjusted such that the laser beam 8 is arranged coaxially with the puck 1.
S6: after the positioning plate 1 and the laser ray 8 are coaxially arranged, the position of the embedded sleeve 7 is adjusted based on the radius of the embedded sleeve 7, and the positions of the pipe wall of the embedded sleeve 7 on the scale mark 11 are observed through the plurality of perspective holes 10, so that the positions of the pipe wall observed by the plurality of perspective holes 10 on the scale mark 11 are consistent.
S7: the locking plate 2 is arranged at the lower end of the pulling sleeve 12, so that the leveling screw rod 4 is supported on the floor bottom die 5 to lock the position of the embedded sleeve 7 on the floor bottom die 5.
S8: based on the indicating piece 3, a plurality of leveling screws 4 are adjusted, so that the locking plate 2 and the positioning plate 1 are arranged along the horizontal direction, and the embedded sleeve 7 is arranged along the vertical direction.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention according to the present application is not limited to the specific combination of the above-mentioned features, but also covers other embodiments where any combination of the above-mentioned features or their equivalents is made without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (9)
1. The utility model provides a buried sleeve installation device in floor which characterized in that includes:
the positioning plate is provided with a plurality of perspective holes, the perspective holes are arranged along the radial direction of the positioning plate, scale marks are formed on the positioning plate and arranged along the radial direction of the positioning plate, the positioning plate is coaxially connected with a drawknot sleeve, a through hole is formed in a floor slab bottom die, a pre-buried sleeve is placed on the inner side of the floor slab bottom die and supported on the positioning plate, the pre-buried sleeve and the positioning plate are coaxially arranged, the drawknot sleeve is arranged in the through hole in a penetrating mode, and the lower end of the drawknot sleeve extends to the lower portion of the floor slab bottom die;
the locking disc is detachably mounted at the lower end of the drawknot casing pipe, a plurality of threaded holes are formed in the locking disc, and the plurality of threaded holes are formed in the circumferential direction of the locking disc;
the indicator is used for detecting the levelness of the locking plate and is arranged on the locking plate;
and the leveling screw is screwed in the threaded hole and supported on the floor bottom die.
2. The embedded casing installation device in floor slab as claimed in claim 1, wherein the perspective hole has a near end close to the center of the circle of the positioning disc and a far end far away from the center of the circle, a sliding block is slidably arranged in the perspective hole, a supporting plate is formed at the lower part of the sliding block, the supporting plate extends to the lower part of the positioning disc and supports against the inner wall of the embedded casing, and a driving assembly for driving the sliding block is installed between the sliding block and the near end.
3. An embedment mounting device in a floor as claimed in claim 2, wherein said drive assembly includes:
the movable shaft is rotatably arranged at the near end and is arranged along the radial direction of the positioning disc;
the threaded sleeve is connected to the sliding block, an external thread is formed on the movable shaft, and the movable shaft is in threaded connection with the threaded sleeve.
4. The pre-buried sleeve installation device in a floor slab as claimed in claim 2, wherein the driving assembly is an electro-hydraulic push rod.
5. The buried sleeve installation device in a floor slab as claimed in claim 1, wherein the locking discs are formed with vertically arranged fins on opposite sides thereof, respectively.
6. A pre-buried sleeve installation device in a floor as claimed in claim 1, wherein the indicator is a bubble level.
7. The embedded sleeve installation device in a floor slab as claimed in claim 1, wherein an axial hole is formed at the axial center of the locking disc, and the drawknot sleeve is inserted into the axial hole.
8. The pre-buried sleeve installation device in a floor slab as claimed in claim 7, wherein the exterior of the drawknot sleeve is formed with external threads, and the shaft hole is formed with internal threads, and the shaft hole is threadedly connected to the drawknot sleeve.
9. A method of installing a sleeve fastener of a sleeve fastener installation device in a floor according to any one of claims 1 to 8, comprising the steps of:
the method comprises the following steps that a laser lamp is vertically arranged on a floor, so that a laser ray of the laser lamp is emitted to the axis of the installation position of a pre-buried sleeve on a floor bottom die of an upper floor;
a through hole is formed in the axis;
vertically arranging the embedded sleeve on the floor slab bottom die;
placing a positioning disc on the embedded sleeve, so that a drawknot sleeve of the positioning disc penetrates through the embedded sleeve and the through hole and extends to the lower part of the floor slab bottom die;
adjusting the position of the positioning disc to enable the laser ray to be coaxially arranged with the positioning disc;
after the positioning disc and the laser ray are coaxially arranged, the position of the embedded sleeve is adjusted based on the radius of the embedded sleeve, and the position of the pipe wall of the embedded sleeve on a scale mark is observed through the plurality of perspective holes, so that the positions of the pipe wall observed by the plurality of perspective holes on the scale mark are consistent;
installing a locking disc at the lower end of the pulling sleeve, so that the leveling screw is supported on the floor bottom die to lock the position of the embedded sleeve on the floor bottom die;
based on the indicating piece, a plurality of leveling screws are adjusted, so that the locking disc and the positioning disc are arranged in the horizontal direction, and the embedded sleeve is arranged in the vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211265194.9A CN115506583A (en) | 2022-10-17 | 2022-10-17 | Embedded sleeve installation device in floor slab and embedded sleeve installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211265194.9A CN115506583A (en) | 2022-10-17 | 2022-10-17 | Embedded sleeve installation device in floor slab and embedded sleeve installation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115506583A true CN115506583A (en) | 2022-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211265194.9A Pending CN115506583A (en) | 2022-10-17 | 2022-10-17 | Embedded sleeve installation device in floor slab and embedded sleeve installation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115506583A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101417469A (en) * | 2008-12-09 | 2009-04-29 | 石家庄开发区益通科技有限公司 | High speed railroad rail plate pre-built sleeve quick positioning device |
| CN106499180A (en) * | 2016-12-09 | 2017-03-15 | 绍兴明煌建材科技有限公司 | A kind of new exterior sheathing is reinforced and external scaffolding drawknot device and its construction method |
| CN209066908U (en) * | 2018-10-09 | 2019-07-05 | 成都建工第四建筑工程有限公司 | A kind of positioning device for pre-buried floor sleeve |
| CN211983101U (en) * | 2020-03-25 | 2020-11-24 | 福建师范大学福清分校 | Planting basket with shading function |
| CN212158612U (en) * | 2020-04-21 | 2020-12-15 | 山西广业建设工程有限公司 | Infrared positioning system for embedded sleeve of vertical water supply and drainage vertical riser |
| CN212428085U (en) * | 2020-05-28 | 2021-01-29 | 武汉建工集团股份有限公司 | Quick accurate positioner of buried sleeve |
| CN215859127U (en) * | 2021-10-08 | 2022-02-18 | 山西泫氏实业集团有限公司 | Pre-buried sleeve convenient to construction |
| US20230165438A1 (en) * | 2021-11-29 | 2023-06-01 | Hunan Vathin Medical Instrument Co. Ltd. | Lens base, distal module, endoscope, and assembly method for distal module |
-
2022
- 2022-10-17 CN CN202211265194.9A patent/CN115506583A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101417469A (en) * | 2008-12-09 | 2009-04-29 | 石家庄开发区益通科技有限公司 | High speed railroad rail plate pre-built sleeve quick positioning device |
| CN106499180A (en) * | 2016-12-09 | 2017-03-15 | 绍兴明煌建材科技有限公司 | A kind of new exterior sheathing is reinforced and external scaffolding drawknot device and its construction method |
| CN209066908U (en) * | 2018-10-09 | 2019-07-05 | 成都建工第四建筑工程有限公司 | A kind of positioning device for pre-buried floor sleeve |
| CN211983101U (en) * | 2020-03-25 | 2020-11-24 | 福建师范大学福清分校 | Planting basket with shading function |
| CN212158612U (en) * | 2020-04-21 | 2020-12-15 | 山西广业建设工程有限公司 | Infrared positioning system for embedded sleeve of vertical water supply and drainage vertical riser |
| CN212428085U (en) * | 2020-05-28 | 2021-01-29 | 武汉建工集团股份有限公司 | Quick accurate positioner of buried sleeve |
| CN215859127U (en) * | 2021-10-08 | 2022-02-18 | 山西泫氏实业集团有限公司 | Pre-buried sleeve convenient to construction |
| US20230165438A1 (en) * | 2021-11-29 | 2023-06-01 | Hunan Vathin Medical Instrument Co. Ltd. | Lens base, distal module, endoscope, and assembly method for distal module |
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