CN112761369A - Bracing device convenient to adjust - Google Patents
Bracing device convenient to adjust Download PDFInfo
- Publication number
- CN112761369A CN112761369A CN202110123558.9A CN202110123558A CN112761369A CN 112761369 A CN112761369 A CN 112761369A CN 202110123558 A CN202110123558 A CN 202110123558A CN 112761369 A CN112761369 A CN 112761369A
- Authority
- CN
- China
- Prior art keywords
- supporting
- sleeve
- supporting sleeve
- rod
- adjusting
- 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.)
- Withdrawn
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Classifications
-
- 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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/18—Adjusting tools; Templates
- E04G21/1841—Means for positioning building parts or elements
-
- 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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/24—Safety or protective measures preventing damage to building parts or finishing work during construction
- E04G21/26—Strutting means for wall parts; Supports or the like, e.g. for holding in position prefabricated walls
Abstract
The invention discloses a diagonal bracing device convenient to adjust, which comprises a supporting sleeve and supporting rods arranged at the upper end and the lower end of the supporting sleeve, wherein the supporting rods and the supporting sleeve are coaxially arranged, one end of each of the two supporting rods is positioned at the inner side of the supporting sleeve and is fixedly provided with a guide slider in sliding connection with the supporting sleeve, the other end of each supporting rod above the supporting sleeve extends out of the supporting sleeve and is hinged with a side connecting seat, the other end of each supporting rod below the supporting sleeve extends out of the supporting sleeve and is provided with a bottom fine adjustment mechanism, tooth grooves are symmetrically arranged on the supporting rods along the axes of the supporting rods, and the end. The inclined strut device is simple to operate, the support rod and the support sleeve are fixed in an engaged mode through the rack and the tooth grooves, the support rod can be quickly pulled out of the support sleeve after the rack is separated from the tooth grooves, the adjusting speed is high, continuous and quick adjustment can be realized, fine adjustment is carried out in a mode of rotating the screw rod, and compared with the mode of directly rotating the sleeve, the inclined strut device is more labor-saving.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to an inclined strut device convenient to adjust.
Background
The prefabricated building refers to a building which is formed by assembling components prefabricated by a factory on a construction site. The prefabricated building has the advantages of convenient construction, fast engineering progress and the like. In recent years, prefabricated construction methods are receiving more and more attention and applications. When the prefabricated part is assembled, the prefabricated part is required to be fixed, and the perpendicularity of the prefabricated part is required to be adjusted, so that the inclined support is often used for temporary fixing and correction, the stability of the prefabricated part is ensured, the perpendicularity of the prefabricated part is adjusted, and the subsequent construction links are conveniently and smoothly carried out. The existing inclined supports applied to the field of buildings are various, but most of the existing inclined supports have the defects of complex operation, poor supporting strength, inconvenient adjustment and the like, and cannot meet the construction requirements of assembled building components.
The existing inclined strut is mainly an adjustable support rod in a threaded connection mode of an inner rod and a sleeve, specific adjustment is usually needed on site, the length of the existing inclined strut can be adjusted only by rotating the inner rod or the sleeve in an adjusting mode, the length of the existing inclined strut is required to be adjusted by rotating the inner rod or the sleeve one by one, the existing inclined strut is relatively troublesome, the adjusting speed is low, continuous and rapid adjustment cannot be achieved, certain adverse effects are brought to practical use, and therefore the inclined strut convenient to adjust is provided.
Disclosure of Invention
The invention aims to solve the problems and designs an inclined strut device convenient to adjust.
The technical scheme of the invention is that the diagonal bracing device convenient to adjust comprises a supporting sleeve and supporting rods arranged at the upper end and the lower end of the supporting sleeve, wherein the supporting rods and the supporting sleeve are coaxially arranged, one ends of the two supporting rods are both positioned at the inner side of the supporting sleeve and are fixedly provided with guide sliders in sliding connection with the supporting sleeve, the other end of the supporting rod above the supporting sleeve extends out of the supporting sleeve and is hinged with a side connecting seat, the other end of the supporting rod below the supporting sleeve extends out of the supporting sleeve and is provided with a bottom fine adjustment mechanism, tooth grooves are symmetrically arranged on the supporting rods along the axial lines of the supporting rods, and the end parts of the supporting sleeves;
the locking mechanism comprises a rotating sleeve, an adjusting ring disc and a limiting ring, wherein the rotating sleeve and the adjusting ring disc are sleeved on the supporting sleeve in a sliding manner, the adjusting ring disc is fixed at one end, close to the end part of the supporting sleeve, of the rotating sleeve, the limiting ring is fixed on the supporting sleeve and is positioned at one end, far away from the adjusting ring disc, of the rotating sleeve, a guide groove with an oval track is arranged on the upper end face of the adjusting ring disc, two L-shaped connecting pieces symmetrically arranged along the axis of the adjusting ring disc are arranged in the guide groove in a sliding manner, two openings corresponding to the L-shaped connecting pieces are radially arranged at the end part of the supporting sleeve, the L-shaped connecting pieces penetrate through the openings corresponding to the L-shaped connecting pieces and are fixedly provided with locking racks matched with tooth sockets, four locking holes are radially arranged on the supporting sleeve and are radially arranged at the inner side of, positioning rods are slidably inserted in the fixed plates, a limiting block is fixed on each positioning rod, a pressure spring is sleeved on each positioning rod and positioned between the limiting block and the fixed plates, two insertion holes symmetrically arranged along the axis of each rotating sleeve are formed in each rotating sleeve, the insertion holes correspond to the locking holes, and the positioning rods can sequentially penetrate through the insertion holes and the locking holes to limit the rotating sleeves to rotate relative to the supporting sleeves;
the locking mechanism further comprises a manual adjusting mechanism, the manual adjusting mechanism comprises two mounting seats fixed on the rotating sleeve, adjusting pieces are hinged to the mounting seats through hinge shafts, one end of each adjusting piece is a holding end, the other end of each adjusting piece is an adjusting end extending to a position between the limiting block and the rotating sleeve, a movable opening for the positioning rod to penetrate through is formed in each adjusting piece, and each adjusting piece penetrates through the corresponding movable opening and moves in the corresponding movable opening;
the bottom fine adjustment mechanism comprises a base, a fine adjustment inclined seat is hinged to the base, a lead screw is mounted on the base, a nut seat is mounted on the lead screw in a threaded mode, a fine adjustment rod is hinged to the nut seat, the other end of the fine adjustment rod is hinged to the fine adjustment inclined seat, and the fine adjustment inclined seat is hinged to a supporting rod below the supporting sleeve.
Preferably, when the L-shaped connecting piece is arranged at the vertex of the long axis of the guide groove, the locking rack is separated from the tooth groove; when the L-shaped connecting piece is arranged at the vertex of the short shaft of the guide groove, the locking rack is meshed with the tooth groove.
Preferably, a hand wheel is mounted at the end of the screw rod.
The invention has the beneficial effects that: the operation is simple, the supporting rod and the supporting sleeve are fixed in a manner that the rack is meshed with the tooth groove, the rotation of the supporting rod and the supporting sleeve is not required to be performed circle by circle, the supporting rod can be quickly pulled out of the supporting sleeve after the rack is separated from the tooth groove by rotating the adjusting ring disc, the adjusting speed is high, and continuous and quick adjustment can be realized; in addition, a fine adjustment mechanism is arranged, when the inclined strut is finally fine adjusted, the inclined strut can bear force by rotating the hand wheel, fine adjustment is carried out in a mode of rotating the screw rod, and compared with the mode of directly rotating the sleeve, the fine adjustment mechanism saves more labor and is more convenient to adjust.
Drawings
FIG. 1 is a state diagram of the use of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a partial cross-sectional view of the present invention;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 3;
FIG. 6 is an enlarged view of a portion of FIG. 3 at C;
in the figure, 1, supporting the sleeve; 2. a support bar; 3. a guide slider; 4. a side connecting seat; 5. a tooth socket; 6. rotating the sleeve; 7. an adjusting ring disc; 8. a limiting ring; 9. a guide groove; 10. an L-shaped connector; 11. an opening; 12. locking the rack; 13. a locking hole; 14. a fixing plate; 15. positioning a rod; 16. a limiting block; 17. a pressure spring; 18. a jack; 19. a mounting seat; 20. an adjustment member; 21. a holding end; 22. an adjustment end; 23. a movable opening; 24. a base; 25. fine adjustment of the inclined seat; 26. a screw rod; 27. a nut seat; 28. a fine adjustment rod; 29. a hand wheel; 30. a cross member; 31. a vertical member.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings, as shown in FIGS. 1-6: a diagonal bracing device convenient to adjust comprises a supporting sleeve 1 and supporting rods 2 arranged at the upper end and the lower end of the supporting sleeve 1, wherein the supporting rods 2 and the supporting sleeve 1 are coaxially arranged, one ends of the two supporting rods 2 are both positioned at the inner side of the supporting sleeve 1 and are fixedly provided with guide sliders 3 in sliding connection with the supporting sleeve 1, the supporting rods 2 can be coaxial with the supporting sleeve 1 and move along the axis of the supporting sleeve 1 by arranging the guide sliders 3, the other ends of the supporting rods 2 above the supporting sleeve 1 extend out of the supporting sleeve 1 and are hinged with a side connecting seat 4, the other ends of the supporting rods 2 below the supporting sleeve 1 extend out of the supporting sleeve 1 and are provided with a bottom fine adjustment mechanism, tooth grooves 5 are symmetrically arranged on the supporting rods 2 along the axis of the supporting sleeve 1, and the end parts of;
the locking mechanism comprises a rotating sleeve 6, an adjusting ring disk 7 and a limiting ring 8, wherein the rotating sleeve 6 and the adjusting ring disk 7 are sleeved on a supporting sleeve 1 in a sliding manner, the adjusting ring disk 7 is fixed at one end of the rotating sleeve 6 close to the end part of the supporting sleeve 1, the limiting ring 8 is fixed on the supporting sleeve 1 and is positioned at one end of the rotating sleeve 6 far away from the adjusting ring disk 7, a guide groove 9 with an oval track is arranged on the upper end surface of the adjusting ring disk 7, two L-shaped connecting pieces 10 symmetrically arranged along the axial line of the guide groove 9 are installed in the guide groove 9 in a sliding manner, two openings 11 corresponding to the L-shaped connecting pieces 10 are radially arranged at the end part of the supporting sleeve 1, the L-shaped connecting pieces 10 penetrate through the openings 11 corresponding to the L-shaped connecting pieces and are fixedly provided with locking racks 12 used for matching with tooth grooves 5, four locking holes 13 are radially formed in the supporting sleeve 1, two fixing plates 14 symmetrically arranged along the axis are fixed at the lower end of the adjusting ring disc 7, positioning rods 15 are inserted in the fixing plates 14 in a sliding mode, a limiting block 16 is fixed on each positioning rod 15, a pressure spring 17 is sleeved between each limiting block 16 and each fixing plate 14 on each positioning rod 15, two insertion holes 18 symmetrically arranged along the axis are formed in the rotating sleeve 6, the insertion holes 18 correspond to the locking holes 13, and the positioning rods 15 can sequentially penetrate through the insertion holes 18 and the locking holes 13 to limit the rotating sleeve 6 to rotate relative to the supporting sleeve 1;
the locking mechanism further comprises a manual adjusting mechanism, the manual adjusting mechanism comprises two mounting seats 19 fixed on the rotating sleeve 6, the mounting seats 19 are hinged with adjusting pieces 20 through hinge shafts, one end of each adjusting piece 20 is a holding end 21, the other end of each adjusting piece 20 is an adjusting end 22 extending between the limiting block 16 and the rotating sleeve 6, a movable opening 23 for the positioning rod 15 to penetrate through is formed in each adjusting piece 20, and each adjusting piece 20 penetrates through the corresponding movable opening 23 and moves in the corresponding movable opening 23;
the bottom fine adjustment mechanism comprises a base 24, a fine adjustment inclined seat 25 is hinged to the base 24, a lead screw 26 is mounted on the base 24, a nut seat 27 is mounted on the lead screw 26 in a threaded mode, a fine adjustment rod 28 is hinged to the nut seat 27, the other end of the fine adjustment rod 28 is hinged to the fine adjustment inclined seat 25, and the fine adjustment inclined seat 25 is hinged to the supporting rod 2 below the supporting sleeve 1.
When the L-shaped connecting piece 10 is arranged at the top point of the long shaft of the guide groove 9, the locking rack 12 is separated from the tooth groove 5; when the L-shaped connecting piece 10 is at the vertex of the short axis of the guide groove 9, the locking rack 12 is engaged with the tooth groove 5.
In order to drive the screw rod 26 to rotate so as to drive the nut seat 27 to move, and adjust the position of the fine adjustment inclined seat 25, a hand wheel 29 is installed at the end part of the screw rod 26. The hand wheel 29 is arranged to facilitate the rotation of the screw rod 26.
The working principle of the embodiment is as follows: during transportation, most of the support rod 2 is contracted in the support sleeve 1, the L-shaped connecting piece 10 is arranged at the top point of the short shaft of the guide groove 9, the locking rack 12 is meshed with the tooth groove 5, the positioning rod 15 penetrates through the jack 18 and the locking hole 13 to limit the rotation of the rotating sleeve 6 relative to the support sleeve 1, and the rack is stably meshed with the tooth groove 5, so that the overall length is reduced, and the transportation and the storage are convenient;
when the locking device is used, according to construction requirements, the base 24 is fixedly installed on the transverse member 30 through anchor bolts, the length of the inclined strut is determined, then the locking mechanism is unlocked through the manual adjusting mechanism, specifically, the holding ends 21 of the two adjusting pieces 20 are manually held to enable the two holding ends 21 to be close, the two adjusting ends 22 naturally separate from each other, the adjusting ends 22 of the adjusting pieces 20 push the limiting blocks 16 to move towards the fixing plate 14, the positioning rod 15 is drawn out of the locking hole 13, the pressure spring 17 is compressed, the rotating sleeve 6 can rotate relative to the supporting sleeve 1, then the rotating sleeve 6 rotates 90 degrees to enable the L-shaped connecting piece 10 to move to the top point of the long shaft of the guide groove 9, the locking rack 12 is not meshed with the tooth groove 5 any more, the holding ends 21 can be loosened in the process of rotating the rotating sleeve 6 rotating 90 degrees, after the rotating sleeve 6 rotates 90 degrees, under the action of the elasticity of the, the positioning rod 15 is automatically inserted into the other locking hole 13, and at the moment, the supporting rod 2 can be pulled and pulled to enable the supporting rod 2 to extend out of the supporting sleeve 1, so that the whole length of the inclined strut is quickly adjusted;
then, the side connecting seats 4 are installed on the vertical component 31, the rotating sleeve 6 is rotated for 90 degrees again, the L-shaped connecting piece 10 is arranged at the top point of the short shaft of the guide groove 9, the locking rack 12 is meshed with the tooth socket 5, the positioning rod 15 penetrates through the insertion hole 18 and the locking hole 13, the rotating sleeve 6 is limited to rotate relative to the supporting sleeve 1, and the rack is stably meshed with the tooth socket 5;
finally, the inclined strut is subjected to fine adjustment through a fine adjustment mechanism, so that the inclined strut and the vertical component 31 are stressed; specifically, the hand wheel 29 is rotated to make the screw rod 26 drive the nut seat 27 to move, the nut seat 27 drives the fine adjustment inclined seat 25 to move through the fine adjustment rod 28, so that the inclination angle of the fine adjustment inclined seat 25 is changed, the support sleeve 1 and the support rod 2 are further pushed, and the support sleeve 1 and the support rod 2 are stressed to support the vertical component 31.
The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.
Claims (3)
1. The inclined strut device convenient to adjust is characterized by comprising a supporting sleeve (1) and supporting rods (2) arranged at the upper end and the lower end of the supporting sleeve (1), wherein the supporting rods (2) are coaxially arranged with the supporting sleeve (1), one ends of the two supporting rods (2) are both positioned at the inner side of the supporting sleeve (1) and are fixedly provided with guide sliders (3) in sliding connection with the supporting sleeve (1), the other end of the supporting rod (2) above the supporting sleeve (1) extends out of the supporting sleeve (1) and is hinged with a side connecting seat (4), the other end of the supporting rod (2) below the supporting sleeve (1) extends out of the supporting sleeve (1) and is provided with a bottom fine adjustment mechanism, tooth grooves (5) are symmetrically arranged on the supporting rods (2) along the axis of the supporting sleeve, and the end part of the supporting sleeve (1) is provided with;
the locking mechanism comprises a rotating sleeve (6), an adjusting ring disc (7) and a limiting ring (8), wherein the rotating sleeve (6) and the adjusting ring disc (7) are sleeved on a supporting sleeve (1) in a sliding mode, the adjusting ring disc (7) is fixed at one end, close to the end portion of the supporting sleeve (1), of the rotating sleeve (6), the limiting ring (8) is fixed on the supporting sleeve (1) and located at one end, far away from the adjusting ring disc (7), of the rotating sleeve (6), a guide groove (9) with an oval track is arranged on the upper end face of the adjusting ring disc (7), two L-shaped connecting pieces (10) symmetrically arranged along the axis of the guide groove (9) are installed in the guide groove in a sliding mode, two openings (11) corresponding to the L-shaped connecting pieces (10) are radially arranged at the end portion of the supporting sleeve (1), the L-shaped connecting pieces (10) penetrate through the openings (11) corresponding to the L-shaped connecting pieces and are, four locking holes (13) are radially formed in the supporting sleeve (1) and located on the inner side of the rotating sleeve (6), the four locking holes (13) are circumferentially distributed along the axis of the supporting sleeve (1), two fixing plates (14) symmetrically arranged along the axis are fixed at the lower end of the adjusting ring disc (7), positioning rods (15) are inserted in the fixing plates (14) in a sliding mode, limiting blocks (16) are fixed on the positioning rods (15), pressure springs (17) are sleeved on the positioning rods (15) and located between the limiting blocks (16) and the fixing plates (14), two insertion holes (18) symmetrically arranged along the axis are formed in the rotating sleeve (6), the insertion holes (18) correspond to the locking holes (13), and the positioning rods (15) can sequentially penetrate through the insertion holes (18) and the locking holes (13) to limit the rotating sleeve (6) to rotate relative to the supporting sleeve (1);
the locking mechanism further comprises a manual adjusting mechanism, the manual adjusting mechanism comprises two mounting seats (19) fixed on the rotating sleeve (6), the mounting seats (19) are hinged with adjusting pieces (20) through hinge shafts, one end of each adjusting piece (20) is a holding end (21), the other end of each adjusting piece (20) is an adjusting end (22) extending to a position between the limiting block (16) and the rotating sleeve (6), a movable opening (23) for the positioning rod (15) to penetrate through is formed in each adjusting piece (20), and each adjusting piece (20) penetrates through each movable opening (23) and moves in each movable opening (23);
the bottom fine adjustment mechanism comprises a base (24), a fine adjustment inclined seat (25) is hinged to the base (24), a screw rod (26) is mounted on the base (24), a nut seat (27) is mounted on the screw rod (26) in a threaded mode, a fine adjustment rod (28) is hinged to the nut seat (27), the other end of the fine adjustment rod (28) is hinged to the fine adjustment inclined seat (25), and the fine adjustment inclined seat (25) is hinged to a supporting rod (2) below the supporting sleeve (1).
2. An adjustable brace apparatus as claimed in claim 1, wherein the L-shaped connecting member (10) is configured such that the locking rack (12) is separated from the tooth groove (5) at the apex of the long axis of the guide groove (9); when the L-shaped connecting piece (10) is arranged at the vertex of the short axis of the guide groove (9), the locking rack (12) is meshed with the tooth groove (5).
3. An adjustable bracing device according to claim 1, wherein a hand wheel (29) is mounted at the end of the lead screw (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110123558.9A CN112761369A (en) | 2021-01-29 | 2021-01-29 | Bracing device convenient to adjust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110123558.9A CN112761369A (en) | 2021-01-29 | 2021-01-29 | Bracing device convenient to adjust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112761369A true CN112761369A (en) | 2021-05-07 |
Family
ID=75706579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110123558.9A Withdrawn CN112761369A (en) | 2021-01-29 | 2021-01-29 | Bracing device convenient to adjust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112761369A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113863689A (en) * | 2021-09-02 | 2021-12-31 | 上海建工四建集团有限公司 | Construction method for adjusting verticality of prefabricated wall panel by using automatic handheld tool |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3480247A (en) * | 1967-10-30 | 1969-11-25 | North American Rockwell | Self-locking adjustable stanchion |
| EP2690235A1 (en) * | 2012-07-25 | 2014-01-29 | Han-Ching Huang | Automatically extensible telescopic apparatus |
| CN208777768U (en) * | 2018-08-03 | 2019-04-23 | 重庆工程职业技术学院 | A kind of interior decoration support device |
| CN210370009U (en) * | 2019-06-06 | 2020-04-21 | 江苏瑞峰建设集团有限公司 | Assembled wallboard strutting arrangement |
| CN211286733U (en) * | 2019-11-14 | 2020-08-18 | 天津亿金鑫金属制品有限公司 | Shear force wall bearing diagonal |
| CN212359220U (en) * | 2020-01-13 | 2021-01-15 | 广东奕佳建设工程有限公司 | Civil construction support frame |
-
2021
- 2021-01-29 CN CN202110123558.9A patent/CN112761369A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3480247A (en) * | 1967-10-30 | 1969-11-25 | North American Rockwell | Self-locking adjustable stanchion |
| EP2690235A1 (en) * | 2012-07-25 | 2014-01-29 | Han-Ching Huang | Automatically extensible telescopic apparatus |
| CN208777768U (en) * | 2018-08-03 | 2019-04-23 | 重庆工程职业技术学院 | A kind of interior decoration support device |
| CN210370009U (en) * | 2019-06-06 | 2020-04-21 | 江苏瑞峰建设集团有限公司 | Assembled wallboard strutting arrangement |
| CN211286733U (en) * | 2019-11-14 | 2020-08-18 | 天津亿金鑫金属制品有限公司 | Shear force wall bearing diagonal |
| CN212359220U (en) * | 2020-01-13 | 2021-01-15 | 广东奕佳建设工程有限公司 | Civil construction support frame |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113863689A (en) * | 2021-09-02 | 2021-12-31 | 上海建工四建集团有限公司 | Construction method for adjusting verticality of prefabricated wall panel by using automatic handheld tool |
| CN113863689B (en) * | 2021-09-02 | 2023-08-08 | 上海建工四建集团有限公司 | Construction method for adjusting sag of prefabricated wallboard by using automatic handheld tool |
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| PB01 | Publication | ||
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Application publication date: 20210507 |