CN110626940B - Special multifunctional rotary adjusting lifting appliance for segmental beam - Google Patents
Special multifunctional rotary adjusting lifting appliance for segmental beam Download PDFInfo
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- CN110626940B CN110626940B CN201910708410.4A CN201910708410A CN110626940B CN 110626940 B CN110626940 B CN 110626940B CN 201910708410 A CN201910708410 A CN 201910708410A CN 110626940 B CN110626940 B CN 110626940B
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- supporting
- lifting
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- plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
- B66C1/28—Duplicate, e.g. pivoted, members engaging the loads from two sides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
Abstract
The invention discloses a special multifunctional rotary adjusting lifting appliance for a segmental beam, which comprises a lifting column and a supporting disc rotatably arranged at the bottom end of the lifting column, wherein a driving motor for driving the supporting disc to rotate is also arranged on the lifting column; two cantilever beams are symmetrically and fixedly installed on the outer side of the supporting disc, and each cantilever beam is provided with a horizontal adjusting piece for adjusting the horizontal position of the supporting column; and each support column is provided with a lifting support plate with adjustable height, and the lifting support plate is also provided with a locking assembly for locking and fixing the lifting support plate. The embodiment of the invention can rotate the cantilever beam of the lifting appliance, solves the problem of different placing angles of the section beams, and has the advantages of flexible adjustment and stable structure of the lifting support plate included by the support part.
Description
Technical Field
The invention relates to a lifting appliance, in particular to a multifunctional rotary adjusting lifting appliance special for a segmental beam.
Background
With the development of science and technology, the modern building industry increasingly pays more attention to the aspects of accelerating the project progress, the product quality and the like through technology, and the component prefabrication gradually becomes the development trend of project construction. In highway bridge engineering, the prefabrication of beam plates becomes the first choice of the industry, so that the engineering progress is accelerated, the cost resource is saved, and the overall quality of the engineering is improved.
The lifting appliance is a device for lifting a heavy object in a lifting machine. The most common lifting devices for lifting finished articles are lifting hooks, lifting straps, lifting rings, lifting suction cups, clamps, forks and the like. Is widely applied to the hoisting industry. The angle is put because of beam yard segment roof beam to current hoist, and lifting hole size error is big, and fixed hoist has not solved this problem, and moreover, the hoist is when using, and it is relatively poor to the regulation flexibility of the backup pad of the object of hanging, and stability is not high moreover, easily leads to its backup pad that carries the object to be equipped with to become invalid, and the security is low.
Disclosure of Invention
The invention aims to provide a special multifunctional rotary adjusting lifting appliance for a segmental beam, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a multifunctional rotary adjusting lifting appliance special for a segmental beam comprises a lifting column and a supporting disk rotatably arranged at the bottom end of the lifting column, wherein a driving motor used for driving the supporting disk to rotate is further mounted on the lifting column; two cantilever beams are symmetrically and fixedly installed on the outer side of the supporting disc, and each cantilever beam is provided with a horizontal adjusting piece for adjusting the horizontal position of the supporting column; each supporting column is provided with a lifting supporting plate with adjustable height, and the lifting supporting plate is also provided with a locking assembly for locking and fixing the lifting supporting plate;
a plurality of locking grooves are uniformly distributed on one side of the supporting column, the locking assembly comprises a locking block matched with the locking groove formed on one side of the supporting column, and the locking block is of a prism structure with an inclined surface on one side; the locking block is arranged on a lifting support plate through an elastic supporting piece, and an operation part for adjusting the direction of an inclined surface on the locking block is also arranged on the lifting support plate; the top one side fixed mounting of support column has the roof of support, install on the roof of support and be used for promoting the electronic telescoping cylinder of lift backup pad up-and-down motion, wherein lift backup pad fixed mounting be in the bottom of telescopic link on the roof of support.
As a further scheme of the invention: the horizontal adjusting piece comprises a supporting screw rod rotatably arranged at the end part of the cantilever beam and a moving threaded sleeve sleeved outside the supporting screw rod in a threaded connection mode, and the top end of the supporting column is fixedly connected with the moving threaded sleeve; still fixed mounting has the positive and negative motor that is used for driving the rotation of support lead screw on the tip outer wall of cantilever beam, in this embodiment, utilizes positive and negative motor drive support lead screw rotatory, according to the direction of rotation of support lead screw, can adjust the position of motion swivel nut, and then realizes the regulation to the support column position.
As a further scheme of the invention: each cantilever beam is provided with an adjustable pressing piece, and the adjustable pressing piece is used for pressing and fixing the top surface of the section beam placed on the lifting support plate.
As a further scheme of the invention: the lifting support plate is provided with a rectangular through hole matched with the support column, the inner wall of the rectangular through hole is provided with a circular groove for accommodating the elastic support piece, and the inner wall of the end part of the circular groove is abutted against the elastic support piece through a first transverse support spring; the tip of circular recess still slides and runs through and is equipped with the support pivot, arranges in the outer support pivot tip fixed mounting of lift backup pad has operating handle, arranges in support pivot tip in the circular recess with elastic support piece fixed connection.
As a further scheme of the invention: two spacing holes have been seted up to the symmetry on the tip outer wall of lift backup pad, fixed mounting has two on operating handle's the inner wall with the corresponding complex spacer pin in spacing hole, through operation and outside pulling operating handle, first horizontal supporting spring at the compression state this moment, then operating handle makes its rotatory half a circle, at this moment, can drive the rotatory half a circle of elastic support spare to the realization is to the adjustment on the inclined plane of locking piece, after loosening operating handle, under the elastic support effect of first horizontal supporting spring, the spacer pin embedding is rather than the spacing downthehole that corresponds, thereby guarantee that the locking piece has adjusted its inclined plane rearward stability.
As a further scheme of the invention: elastic support piece locates the rotatory section of thick bamboo in the circular recess including rotating, horizontal slip is equipped with rather than inner chamber matched with oval slider in the rotatory section of thick bamboo, one side of oval slider with through the horizontal supporting spring fixed connection of second between the one end inner wall of rotatory section of thick bamboo, the opposite side fixed mounting of oval slider has the locking lever, locking block fixed mounting be in the other end of locking lever.
As a further scheme of the invention: the adjustable compression piece comprises a fixed cylinder fixedly installed on the cantilever beam, an upper sliding block and a lower sliding block are respectively arranged in the fixed cylinder in a vertically sliding manner, the upper sliding block and the lower sliding block are supported and connected through a vertical supporting spring, a fixed threaded sleeve is fixedly installed on a top plate of the fixed cylinder, the fixed threaded sleeve is sleeved on a screw rod in a threaded connection manner, the bottom end of the screw rod arranged in the fixed cylinder is rotatably connected with the upper sliding block, and an adjusting disc is fixedly installed at the top end of the screw rod arranged outside the fixed cylinder;
the bottom plate of the fixed cylinder is provided with a pressing rod in a penetrating and sliding mode, the top end of the pressing rod in the fixed cylinder is fixedly connected with the lower sliding block, and the bottom end of the pressing rod below the fixed cylinder is fixedly provided with a pressing plate.
As a further scheme of the invention: the top of davit is provided with rings, the last fixed surface of support disc install with the coaxial annular rack of davit, install on driving motor's the output shaft with the driving gear of annular rack looks meshing.
Compared with the prior art, in the multifunctional rotary adjusting lifting appliance special for the sectional beam, which is provided by the embodiment of the invention, the cantilever beam can be driven to rotate by using the driving motor, when the multifunctional rotary adjusting lifting appliance is used, the elastic supporting piece is used for pushing the locking block to be embedded into the locking groove so as to realize the locking and fixing of the lifting support plate when the lifting support plate is installed on the support column, when the lifting support plate needs to be adjusted upwards, the inclined surface of the locking block is adjusted to be upward, then the lifting support plate is pulled upwards by using the electric telescopic cylinder, at the moment, because the inclined surface of the locking block is upward, the elastic supporting piece is in a compressed state in the upward movement process of the lifting support plate, after the lifting support plate is adjusted to a specified height, the locking block is embedded into the locking groove under the supporting effect of the elastic supporting piece, at the moment, because, in order to guarantee the stability after the high adjustment of lift backup pad finishes, on the contrary, when needs utilize electronic telescoping cylinder to promote the lift backup pad downstream, utilize the inclined plane of operating portion adjustment locking piece down can, after the height that the adjustment lift backup pad was located, the inclined plane of reuse operating portion adjustment locking piece faces upward, can guarantee the stability of the high position that the lift backup pad was located.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.
Fig. 1 is a schematic structural view of a multifunctional rotary adjusting spreader special for a segmental beam provided by an embodiment of the invention.
Fig. 2 is a structural diagram of an adjustable support portion in the multifunctional rotary adjustment spreader special for the segmental beam provided by the embodiment of the invention.
Fig. 3 is a structural diagram of an adjustable pressing member in the multifunctional rotary adjusting hanger special for the segmental beam provided by the embodiment of the invention.
Fig. 4 is a structural diagram of an elastic support in the multifunctional rotary adjustment spreader special for the segmental beam provided by the embodiment of the invention.
Fig. 5 is a three-dimensional structure diagram of a support column in a multifunctional rotary adjustment spreader special for a segmental beam according to an embodiment of the present invention
In the figure: 1-a davit, 2-a hoisting ring, 3-a supporting disc, 4-a cantilever beam, 5-an adjustable pressing piece, 6-a driving motor, 7-a horizontal adjusting piece, 8-a supporting column, 9-an elastic supporting piece, 10-a lifting supporting plate, 11-an anti-dropping block, 12-a locking groove, 13-an operating handle, 14-a locking block, 15-a ring-shaped rack, 16-a driving gear, 17-an electric telescopic cylinder, 18-a supporting top plate, 19-a limiting pin, 20-a limiting hole, 21-a first transverse supporting spring and 22-a supporting rotating shaft;
51-a fixed cylinder, 52-an adjusting disc, 53-a screw rod, 54-a fixed screw sleeve, 55-an upper slide block, 56-a lower slide block, 57-a vertical supporting spring, 58-a pressure rod and 59-a pressure plate;
71-a moving screw sleeve, 72-a forward and reverse rotating motor, 73-a supporting screw rod;
91-rotary cylinder, 92-oval slider, 93-second lateral support spring, 94-locking lever;
101-rectangular through hole, 102-circular groove.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 to 4, in an embodiment provided by the present invention, a multifunctional rotary adjustment lifting appliance dedicated for a segmental beam includes a lifting column 1 and a supporting disc 3 rotatably disposed at a bottom end of the lifting column 1, wherein a driving motor 6 for driving the supporting disc 3 to rotate is further mounted on the lifting column 1; two cantilever beams 4 are symmetrically and fixedly installed on the outer side of the supporting disc 3, and a horizontal adjusting piece 7 for adjusting the horizontal position of a supporting column 8 is arranged on each cantilever beam 4; each supporting column 8 is provided with a lifting supporting plate 10 with adjustable height, and the lifting supporting plate 10 is also provided with a locking component for locking and fixing the lifting supporting plate 10; specifically, a plurality of locking grooves 12 are uniformly distributed on one side of the supporting column 8, the locking assembly comprises a locking block 14 matched with the locking grooves 12 formed on one side of the supporting column 8, and the locking block 14 is of a prism structure with an inclined surface on one side; the locking block 14 is mounted on a lifting support plate 10 through an elastic support member 9, and an operation part for adjusting the direction of an inclined surface on the locking block 14 is further mounted on the lifting support plate 10;
further, in the embodiment of the present invention, a supporting top plate 18 is fixedly installed on one side of the top of the supporting column 8, an electric telescopic cylinder 17 for pushing the lifting supporting plate 10 to move up and down is installed on the supporting top plate 18, wherein the lifting supporting plate 10 is fixedly installed at the bottom end of a telescopic rod on the supporting top plate 18.
In this embodiment, the elastic supporting member 9 is used to push the locking block 14 to be embedded into the locking groove 12, so as to achieve locking and fixing of the lifting support plate 10 when the lifting support plate 10 is mounted on the support post 8, when the lifting support plate 10 needs to be adjusted upward, the operation portion is used to adjust the inclined surface of the locking block 14 to be upward, then the electric telescopic cylinder 17 is used to pull the lifting support plate 10 upward, at this time, because the inclined surface of the locking block 14 is upward, the elastic supporting member 9 is in a compressed state during the upward movement of the lifting support plate 10, after the lifting support plate 10 is adjusted to a specified height, the locking block 14 is embedded into the locking groove 12 under the supporting effect of the elastic supporting member 9, at this time, because the bottom surface of the locking block 14 is a plane, an effective supporting and locking effect can be performed on the lifting support plate 10, so as to ensure the stability, when the lifting support plate 10 needs to be pushed to move downwards by the electric telescopic cylinder 17, the inclined surface of the locking block 14 can be adjusted to face downwards by the operation part, and after the height of the lifting support plate 10 is adjusted, the inclined surface of the locking block 14 is adjusted to face upwards by the operation part again, so that the stability of the height position of the lifting support plate 10 can be ensured.
In the embodiment of the present invention, the horizontal adjusting member 7 includes a support screw 73 rotatably disposed at an end of the cantilever beam 4 and a moving threaded sleeve 71 sleeved outside the support screw 73 in a threaded connection manner, and a top end of the support column 8 is fixedly connected to the moving threaded sleeve 71; the outer wall of the end part of the cantilever beam 4 is also fixedly provided with a forward and reverse rotation motor 72 for driving the support screw rod 73 to rotate, in the embodiment, the forward and reverse rotation motor 72 is used for driving the support screw rod 73 to rotate, and the position of the movement threaded sleeve 71 can be adjusted according to the rotation direction of the support screw rod 73, so that the position of the support column 8 can be adjusted.
Further, in the embodiment provided by the present invention, each of the cantilever beams 4 is mounted with an adjustable pressing member 5, and the adjustable pressing member 5 is used for pressing and fixing the top surface of the section beam placed on the lifting support plate 10.
With reference to fig. 1, 2, 4 and 5, in an embodiment of the present invention, a rectangular through hole 101 matching with the supporting pillar 8 is formed on the lifting supporting plate 10, a circular groove 102 for accommodating the elastic supporting member 9 is formed on an inner wall of the rectangular through hole 101, and an inner wall of an end portion of the circular groove 102 is abutted against the elastic supporting member 9 through a first transverse supporting spring 21; the end part of the circular groove 102 is also provided with a supporting rotating shaft 22 in a sliding and penetrating way, the end part of the supporting rotating shaft 22 arranged outside the lifting supporting plate 10 is fixedly provided with an operating handle 13, and the end part of the supporting rotating shaft 22 arranged in the circular groove 102 is fixedly connected with the elastic supporting piece 9;
furthermore, two limiting holes 20 are symmetrically formed in the outer wall of the end portion of the lifting supporting plate 10, two limiting pins 19 which are correspondingly matched with the limiting holes 20 are fixedly installed on the inner wall of the operating handle 13, the operating handle 13 is operated and pulled outwards, the first transverse supporting spring 21 is in a compressed state, then the operating handle 13 is operated to enable the operating handle 13 to rotate for a half circle, at the moment, the elastic supporting piece 9 can be driven to rotate for a half circle, so that the inclined surface of the locking block 14 can be adjusted, after the operating handle 13 is loosened, the limiting pins 19 are embedded into the corresponding limiting holes 20 under the elastic supporting action of the first transverse supporting spring 21, and therefore the stability that the inclined surface of the locking block 14 faces backwards after being adjusted is guaranteed.
As shown in fig. 4, in another embodiment of the present invention, the elastic supporting member 9 includes a rotating cylinder 91 rotatably disposed in a circular groove 102, an oval slider 92 fitted to an inner cavity of the rotating cylinder 91 is horizontally and movably disposed in the rotating cylinder 91, one side of the oval slider 92 is fixedly connected to an inner wall of one end of the rotating cylinder 91 through a second transverse supporting spring 93, the other side of the oval slider 92 is fixedly mounted with a locking rod 94, and the locking block 14 is fixedly mounted at the other end of the locking rod 94.
As shown in fig. 1 and fig. 3, in the embodiment provided by the present invention, the adjustable pressing member 5 includes a fixed cylinder 51 fixedly mounted on the cantilever beam 4, an upper slider 55 and a lower slider 56 are respectively disposed in the fixed cylinder 51 in an up-down sliding manner, the upper slider 55 and the lower slider 56 are supported and connected by a vertical supporting spring 57, a fixed threaded sleeve 54 is fixedly mounted on a top plate of the fixed cylinder 51, the fixed threaded sleeve 54 is sleeved on the threaded rod 53 in a threaded connection manner, a bottom end of the threaded rod 53 disposed in the fixed cylinder 51 is rotatably connected with the upper slider 55, and a top end of the threaded rod 53 disposed outside the fixed cylinder 51 is fixedly mounted with the adjusting plate 52;
further, it is equipped with depression bar 58 to run through the slip on the bottom plate of fixed section of thick bamboo 51, arrange in depression bar 58 top in the fixed section of thick bamboo 51 with fixed connection between the slider 56 down, arrange in depression bar 58 bottom fixed mounting of fixed section of thick bamboo 51 below has pressure strip 59, it is rotatory to drive screw 53 through operation adjusting disk 52, according to the direction of rotation of screw 53, can adjust the high position that slider 55 locates in fixed section of thick bamboo 51, and then realize the further extrusion to vertical supporting spring 57, thereby realize the adjustment to vertical supporting spring 57 elasticity, under vertical supporting spring 57's spring action, promote pressure strip 59 downstream, compress tightly fixedly to the upper surface of section roof beam.
As shown in fig. 1, in the embodiment provided by the present invention, a lifting ring 2 is disposed at the top end of the lifting column 1, an annular rack 15 coaxial with the lifting column 1 is fixedly mounted on the upper surface of the supporting disc 3, and a driving gear 16 engaged with the annular rack 15 is mounted on an output shaft of the driving motor 6.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (1)
1. The special multifunctional rotary adjusting lifting appliance for the segmental beam is characterized by comprising a lifting column (1) and a supporting disc (3) rotatably arranged at the bottom end of the lifting column (1), wherein a driving motor (6) for driving the supporting disc (3) to rotate is further mounted on the lifting column (1); two cantilever beams (4) are symmetrically and fixedly installed on the outer side of the supporting disc (3), and a horizontal adjusting piece (7) used for adjusting the horizontal position of the supporting column (8) is arranged on each cantilever beam (4); each supporting column (8) is provided with a lifting supporting plate (10) with adjustable height, and the lifting supporting plate (10) is also provided with a locking assembly for locking and fixing the lifting supporting plate (10); a plurality of locking grooves (12) are uniformly distributed on one side of the supporting column (8), the locking assembly comprises a locking block (14) matched with the locking grooves (12) formed on one side of the supporting column (8), and the locking block (14) is of a prism structure with an inclined surface on one side; the locking block (14) is mounted on a lifting support plate (10) through an elastic support piece (9), and an operation part for adjusting the direction of an inclined surface on the locking block (14) is further mounted on the lifting support plate (10);
a supporting top plate (18) is fixedly installed on one side of the top of the supporting column (8), an electric telescopic cylinder (17) used for pushing the lifting supporting plate (10) to move up and down is installed on the supporting top plate (18), and the lifting supporting plate (10) is fixedly installed at the bottom end of a telescopic rod on the supporting top plate (18); the horizontal adjusting piece (7) comprises a supporting screw rod (73) rotatably arranged at the end part of the cantilever beam (4) and a moving threaded sleeve (71) sleeved outside the supporting screw rod (73) in a threaded connection mode, and the top end of the supporting column (8) is fixedly connected with the moving threaded sleeve (71); a forward and reverse rotation motor (72) for driving the support screw rod (73) to rotate is further fixedly mounted on the outer wall of the end part of the cantilever beam (4); each cantilever beam (4) is provided with an adjustable pressing piece (5);
the adjustable pressing piece (5) comprises a fixed cylinder (51) fixedly mounted on the cantilever beam (4), an upper sliding block (55) and a lower sliding block (56) are respectively arranged in the fixed cylinder (51) in a vertically sliding manner, the upper sliding block (55) and the lower sliding block (56) are in supporting connection through a vertical supporting spring (57), and a fixed threaded sleeve (54) is fixedly mounted on a top plate of the fixed cylinder (51); the fixed screw sleeve (54) is sleeved on the screw rod (53) in a threaded connection mode, the bottom end of the screw rod (53) arranged in the fixed cylinder (51) is rotatably connected with the upper sliding block (55), and the top end of the screw rod (53) arranged outside the fixed cylinder (51) is fixedly provided with an adjusting disc (52);
a pressing rod (58) is arranged on a bottom plate of the fixed cylinder (51) in a penetrating and sliding mode, the top end of the pressing rod (58) arranged in the fixed cylinder (51) is fixedly connected with the lower sliding block (56), and a pressing plate (59) is fixedly installed at the bottom end of the pressing rod (58) arranged below the fixed cylinder (51); a rectangular through hole (101) matched with the supporting column (8) is formed in the lifting supporting plate (10), a circular groove (102) used for accommodating the elastic supporting piece (9) is formed in the inner wall of the rectangular through hole (101), and the inner wall of the end part of the circular groove (102) is abutted to the elastic supporting piece (9) through a first transverse supporting spring (21); the end part of the circular groove (102) is also provided with a supporting rotating shaft (22) in a sliding and penetrating way, the end part of the supporting rotating shaft (22) arranged outside the lifting supporting plate (10) is fixedly provided with an operating handle (13), and the end part of the supporting rotating shaft (22) arranged in the circular groove (102) is fixedly connected with the elastic supporting piece (9);
two limiting holes (20) are symmetrically formed in the outer wall of the end part of the lifting supporting plate (10), and two limiting pins (19) which are correspondingly matched with the limiting holes (20) are fixedly installed on the inner wall of the operating handle (13); the elastic supporting piece (9) comprises a rotary cylinder (91) rotatably arranged in a circular groove (102), an oval sliding block (92) matched with an inner cavity of the rotary cylinder (91) is horizontally and movably arranged in the rotary cylinder (91), one side of the oval sliding block (92) is fixedly connected with the inner wall of one end of the rotary cylinder (91) through a second transverse supporting spring (93), a locking rod (94) is fixedly arranged on the other side of the oval sliding block (92), and the locking block (14) is fixedly arranged at the other end of the locking rod (94); the top of davit (1) is provided with rings (2), the last fixed surface of support disc (3) install with davit (1) coaxial annular rack (15), install on the output shaft of driving motor (6) with annular rack (15) engaged with driving gear (16).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910708410.4A CN110626940B (en) | 2019-08-01 | 2019-08-01 | Special multifunctional rotary adjusting lifting appliance for segmental beam |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910708410.4A CN110626940B (en) | 2019-08-01 | 2019-08-01 | Special multifunctional rotary adjusting lifting appliance for segmental beam |
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| CN110626940A CN110626940A (en) | 2019-12-31 |
| CN110626940B true CN110626940B (en) | 2020-08-11 |
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| CN108773761A (en) * | 2018-08-24 | 2018-11-09 | 河南三五重工有限公司 | A kind of beam sections special-purpose multifunctional rotation adjusting suspender |
| CN110007730B (en) * | 2019-04-22 | 2023-11-21 | 郑州工程技术学院 | Computer display card supporting mechanism |
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2019
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