CN112103886B - Cable installation adjusting frame for electric power engineering construction - Google Patents
Cable installation adjusting frame for electric power engineering construction Download PDFInfo
- Publication number
- CN112103886B CN112103886B CN202010933684.6A CN202010933684A CN112103886B CN 112103886 B CN112103886 B CN 112103886B CN 202010933684 A CN202010933684 A CN 202010933684A CN 112103886 B CN112103886 B CN 112103886B
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- Prior art keywords
- column
- fixed
- mounting
- limiting
- base
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- 238000009434 installation Methods 0.000 title claims abstract description 20
- 238000010276 construction Methods 0.000 title claims abstract description 17
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/05—Suspension arrangements or devices for electric cables or lines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
- F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention relates to the technical field of electric power construction, in particular to a cable installation adjusting frame for electric power engineering construction, which aims at the problem that the cable installation and adjustment in the prior art are time-consuming and labor-consuming, and provides a scheme which comprises a base, four trundles arranged at the bottom of the base, a telescopic rod fixed at the top of the base, an installation frame fixed at the top of the telescopic rod, an adjusting sleeve movably sleeved outside the telescopic rod and two limiting devices arranged on the base; the telescopic column comprises a fixing column and a mounting column which are fixed to the top of the base, a mounting hole is formed in the top of the fixing column, one end of the mounting column extends into the mounting hole, and an adjusting mechanism used for driving the mounting column to move up and down is mounted on the fixing column. The cable support device is reasonable in structure, simple to operate, convenient to support cables at different heights, convenient to move and adjust, capable of reducing labor consumption and difficulty in adjusting the cables and easy to popularize and use.
Description
Technical Field
The invention relates to the field of electric power construction, in particular to a cable installation adjusting frame for electric power engineering construction.
Background
The existing power cable uses a bracket type operation, the bracket can be abraded and damaged in long-term use, the cable falls on the ground to drag, the cable is damaged if the cable is light, and safety accidents occur if the cable is heavy.
Among the prior art, after the cable falls subaerial or a certain section has drooped, need the workman cooperation more than three at least just can install the cable again and adjust, this just needs to consume more manpower, adjusts also very trouble and labouring moreover, and for this reason, this scheme has provided a cable installation alignment jig for electric power engineering construction.
Disclosure of Invention
The invention provides a cable installation adjusting bracket for power engineering construction, which solves the problem that the cable installation and adjustment in the prior art are time-consuming and labor-consuming.
In order to achieve the purpose, the invention adopts the following technical scheme:
a cable mounting and adjusting frame for electric power engineering construction comprises a base, four trundles arranged at the bottom of the base, a telescopic rod fixed at the top of the base, a mounting frame fixed at the top of the telescopic rod, an adjusting sleeve movably sleeved outside the telescopic rod and two limiting devices arranged on the base;
the telescopic column comprises a fixed column and an installation column which are fixed on the top of the base, the top of the fixed column is provided with an installation hole, one end of the installation column extends into the installation hole, the fixed column is provided with an adjusting mechanism for driving the installation column to move up and down, and the outer wall of one side of the fixed column is provided with a limiting hole;
the mounting frame is a U-shaped frame with an upward opening, the inner side of the mounting frame is rotatably connected with a roller, and the mounting frame is fixed at the top of the mounting column;
the adjusting sleeve is sleeved outside the fixing column, and a limiting column clamped with the limiting hole is mounted on the fixing column;
stop device is including fixed bracing piece that can be at the base top, articulates the lever at the bracing piece top and articulates the connecting rod in lever one end through hinge mechanism, the one end of connecting rod runs through the below that the base extends to the base, and the one end that the connecting rod is located the base below is fixed with the fixed plate, the other end of lever extends to the bottom of adjusting collar, stop device still establishes at the outside first spring of connecting rod including the cover, and first spring is located between fixed plate and the base.
Preferably, the adjusting mechanism comprises a threaded column rotatably connected to the bottom of the mounting hole, a first bevel gear fixed outside the threaded column, a rotating shaft rotatably installed on the outer wall of the fixed column, one end of the rotating shaft extending into the mounting hole, and a second bevel gear fixed at one end of the rotating shaft located inside the mounting hole and meshed with the first bevel gear, a threaded hole is formed in the bottom of the mounting column, the top of the threaded column extends to the inside of the threaded hole and is in threaded connection with the threaded hole, and the adjusting mechanism further comprises a turntable fixed at the other end of the rotating shaft.
Preferably, a handle is arranged on the edge of the outer wall of one side of the rotating disc, which is far away from the rotating shaft.
Preferably, a limiting groove is formed in the inner wall of one side of the mounting hole, a limiting block with one end extending into the limiting groove is fixed to the bottom of the outer wall of one side of the mounting column, and the limiting block is connected with the limiting groove in a sliding mode.
Preferably, the hole of accomodating has been seted up on the inner wall of adjusting collar, spacing post is located the inside of accomodating the hole, just the one end butt of spacing post is on the outer wall of fixed column, and the other end of spacing post extends to the outside of adjusting collar, and the one end that spacing post is located the adjusting collar outside is fixed with the pull ring, the external fixation of spacing post is located the spring fixture block of accomodating the downthehole portion, the outside cover of spacing post is equipped with and is located the second spring of accomodating the downthehole portion, and the second spring is located one side that the fixed column was kept away from to the spring fixture block.
Preferably, the hinge mechanism comprises a mounting groove formed in the top of the connecting rod, a connecting groove formed in one side of the lever, and a connecting shaft penetrating through the connecting groove and fixed to the inner walls of the two sides of the mounting groove at two ends respectively, wherein the connecting groove is connected with the connecting shaft in a sliding mode.
Preferably, the limiting device further comprises a skid-proof plate fixed on the bottom surface of the fixing plate.
The invention has the beneficial effects that:
1. through the cooperation between fixed column, erection column, screw thread post, screw hole, carousel, handle, pivot, first bevel gear, second bevel gear, stopper and the spacing groove, reach the purpose of conveniently adjusting the installing frame height to support the cable of co-altitude department not.
2. The friction force between the antiskid plate and the ground can be utilized to avoid the base from moving randomly through the arrangement of the limiting device.
3. Through the cooperation between adapter sleeve, spacing post, second spring and the spacing hole, the one end with two levers is conveniently pushed down simultaneously to upwards pull out two spliced poles, make two stop device's antiskid ribbed tile all break away from the contact with the bottom surface, thereby make the base can remove again.
4. The cable can be conveniently supported by the fixing frame, and the cable can be conveniently pulled in the fixing frame by the roller.
The cable support device is reasonable in structure, simple to operate, convenient to support cables at different heights, convenient to move and adjust, capable of reducing labor consumption and difficulty in adjusting the cables and easy to popularize and use.
Drawings
Fig. 1 is a front cross-sectional view of the present invention.
Fig. 2 is an enlarged view of a point a in fig. 1.
Fig. 3 is a connection structure view of the connection rod and the lever in fig. 1.
Fig. 4 is a front view of the present invention.
Fig. 5 is a left side cross-sectional view of the adjustment sleeve of fig. 4.
Reference numbers in the figures: the device comprises a base 1, a fixed column 2, a mounting column 3, a mounting frame 4, a roller 5, a threaded hole 6, a threaded column 7, a rotating disc 8, a supporting rod 9, a connecting rod 10, a lever 11, an adjusting sleeve 12, a limiting block 13, a mounting groove 14, a connecting groove 15, a mounting hole 16, a caster 17, a fixing plate 18, an anti-skid plate 19, a limiting groove 20, a handle 21, a first bevel gear 22, a second bevel gear 23, a limiting column 24, a containing hole 25, a pull ring 26, a limiting hole 27, a spring clamping block 28 and a connecting shaft 29.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-5, a cable installation adjusting bracket for electric power engineering construction comprises a base 1, four casters 17 installed at the bottom of the base 1, a telescopic rod fixed at the top of the base 1, an installation frame 4 fixed at the top of the telescopic rod, an adjusting sleeve 12 movably sleeved outside the telescopic rod, and two limiting devices installed on the base 1;
the telescopic rod comprises a fixed column 2 and a mounting column 3 which are fixed on the top of a base 1, the top of the fixed column 2 is provided with a mounting hole 16, one end of the mounting column 3 extends into the mounting hole 16, an adjusting mechanism for driving the mounting column 3 to move up and down is installed on the fixed column 2, the adjusting mechanism comprises a threaded column 7 which is rotatably connected to the bottom of the mounting hole 16, a first bevel gear 22 which is fixed on the outer part of the threaded column 7, a rotating shaft which is rotatably installed on the outer wall of the fixed column 2 and one end of which extends into the mounting hole 16, and a second bevel gear 23 which is fixed on one end of the rotating shaft which is positioned in the mounting hole 16 and is meshed with the first bevel gear 22, the bottom of the mounting column 3 is provided with a threaded hole 6, the top of the threaded column 7 extends into the threaded hole 6 and is in threaded connection with the threaded hole 6, the adjusting mechanism further comprises a turntable 8 which is fixed on the other end of the rotating shaft, and when the mounting column 3 is adjusted to move up and down, the rotating disc 8 is rotated clockwise, so that the rotating shaft drives the second bevel gear 23 to rotate clockwise, the second bevel gear 23 drives the first bevel gear 22 to rotate, so that the threaded column 7 rotates, the mounting column 3 rises along with the rotation of the threaded column 7, and conversely, when the rotating disc 8 is rotated counterclockwise, the mounting column 3 falls;
a limiting groove 20 is formed in the inner wall of one side of the mounting hole 16, a limiting block 13 with one end extending into the limiting groove 20 is fixed at the bottom of the outer wall of one side of the mounting column 3, the limiting block 13 is connected with the limiting groove 20 in a sliding mode, and the mounting column 3 can be prevented from rotating along with the rotation of the threaded column 7 due to the matching between the limiting groove 20 and the limiting block 13;
the handle 21 is installed at the outer wall edge of one side of the rotating disc 8 far away from the rotating shaft, the handle 21 can be rotatably installed on the outer wall of the rotating disc 8, and the rotating disc 8 can be conveniently rotated through the handle 21.
The mounting frame 4 is a U-shaped frame with an upward opening, the inner side of the mounting frame 4 is rotatably connected with the roller 5, the mounting frame 4 is fixed at the top of the mounting column 3, the mounting frame 4 can support a falling cable, and the arrangement of the roller 5 can reduce the friction force when the cable is directly contacted with the mounting frame 4 when the cable is pulled, so that the cable is pulled more easily;
a limiting hole 27 is arranged on the outer wall of one side of the fixed column 2, the adjusting sleeve 12 is sleeved on the outer part of the fixed column 2, a limiting post 24 clamped with the limiting hole 27 is arranged on the fixed column 2, an accommodating hole 25 is arranged on the inner wall of the adjusting sleeve 12, the limiting post 24 is positioned in the accommodating hole 25, one end of the limiting post 24 is abutted against the outer wall of the fixed column 2, the other end of the limiting post 24 extends to the outer side of the adjusting sleeve 12, a pull ring 26 is fixed at one end of the limiting post 24 positioned on the outer side of the adjusting sleeve 12, a spring clamping block 28 positioned in the accommodating hole 25 is fixed at the outer part of the limiting post 24, a second spring positioned in the accommodating hole 25 is sleeved on the outer part of the limiting post 24, the second spring is positioned at one side of the spring clamping block 28 far away from the fixed column 2, the second spring is arranged to ensure that the limiting post 24 can be clamped in the limiting hole 27 without loosening, thereby fixing the position of the adjusting sleeve 12, the arrangement of the pull ring is convenient for pulling the limiting column 24 outwards;
the limiting device comprises a supporting rod 9 which can be fixedly arranged on the top of a base 1, a lever 11 which is hinged on the top of the supporting rod 9, a connecting rod 10 which is hinged on one end of the lever 11 through a hinge mechanism, one end of the connecting rod 10 penetrates through the base 1 and extends to the lower part of the base 1, a fixing plate 18 is fixedly arranged at one end, positioned below the base 1, of the connecting rod 10, the other end of the lever 11 extends to the bottom of an adjusting sleeve 12, a first spring which is sleeved outside the connecting rod 10 is further comprised by a first spring which is positioned between the fixing plate 18 and the base 1, the hinge mechanism comprises a mounting groove 14 which is arranged on the top of the connecting rod 10, a connecting groove 15 which is arranged on one side of the lever 11 and a connecting shaft 29 which penetrates through the connecting groove 15, two ends of the connecting groove 15 are respectively fixed on the inner walls on two sides of the mounting groove 14, the connecting groove 15 is connected with the connecting shaft 29 in a sliding manner, the connecting shaft 29 can slide in the inside of the connecting groove 15, so that the connecting rod 10 can be upwards pulled up when one end of the lever 11 is tilted, stop device is still including fixing the antiskid ribbed tile 19 in fixed plate 18 bottom surface, antiskid ribbed tile 19 adopts the vulcanized rubber preparation, better non-slip property has, the setting of first spring can make antiskid ribbed tile 19 hug closely on the bottom surface, thereby utilize the frictional force between antiskid ribbed tile 19 and the ground to fix the alignment jig, can push down the one end of lever 11 when adjusting collar 12 moves down, the other end of lever 11 will stick up like this, thereby can upwards pull up connecting rod 10, make antiskid ribbed tile 9 and ground break away from the contact, whole alignment jig just can remove like this.
The working principle is as follows: when the adjusting frame is moved, the adjusting sleeve 12 is in a downward pressing state, one end of the limiting column is clamped in the limiting hole 27, one ends of the levers 11 of the two limiting devices are pressed down by the adjusting sleeve 12, the anti-skid plates 19 are separated from the ground, the first springs are in a compressed state, when the adjusting frame is moved to a cable position to be adjusted, the anti-skid plates 19 of the two limiting devices are abutted to the ground under the action of the two first springs when the pull tank 26 is pulled to pull one end of the limiting column 24 out of the limiting hole 27, so that the anti-skid plates 19 of the two limiting devices are prevented from moving, the connecting rods 10 of the two limiting devices synchronously move downwards along with the downward movement of the two fixing plates 18, so that the levers 11 of the two limiting devices rotate, one ends of the two levers 11 positioned at the bottom of the adjusting sleeve 12 push up the adjusting sleeve 12, then loosen the pull ring 26 again, the one end that spacing post 24 is located the adjusting collar 12 inboard is just the butt on the outer wall of fixed column 2, then adjust the coverage of installing frame 4 again, make the cable can be held by the inboard cylinder 5 of installing frame 4, when adjusting the height of installing frame 4, hold handle 21 clockwise rotation carousel 3, thereby make the pivot drive second bevel gear 23 clockwise rotation, second bevel gear 23 drives first bevel gear 22 again and rotates, thereby make the screw thread post 7 rotate, along with the rotation of screw thread post 7, erection rod 3 rises, on the contrary, when anticlockwise rotation carousel 8, erection rod 3 descends, thereby convenient height to installing frame 4 adjusts.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. A cable mounting and adjusting frame for electric power engineering construction is characterized by comprising a base (1), four trundles (17) mounted at the bottom of the base (1), a telescopic rod fixed at the top of the base (1), a mounting frame (4) fixed at the top of the telescopic rod, an adjusting sleeve (12) movably sleeved outside the telescopic rod and two limiting devices mounted on the base (1);
the telescopic rod comprises a fixing column (2) and a mounting column (3) which are fixed on the top of the base (1), a mounting hole (16) is formed in the top of the fixing column (2), one end of the mounting column (3) extends into the mounting hole (16), an adjusting mechanism for driving the mounting column (3) to move up and down is mounted on the fixing column (2), and a limiting hole (27) is formed in the outer wall of one side of the fixing column (2);
the mounting frame (4) is a U-shaped frame with an upward opening, the inner side of the mounting frame (4) is rotatably connected with a roller (5), and the mounting frame (4) is fixed at the top of the mounting column (3);
the adjusting sleeve (12) is sleeved outside the fixed column (2), and a limiting column (24) clamped with a limiting hole (27) is mounted on the fixed column (2);
stop device is including fixed bracing piece (9) that can be at base (1) top, articulate lever (11) at bracing piece (9) top and articulate connecting rod (10) in lever (11) one end through hinge mechanism, the one end of connecting rod (10) runs through the below that base (1) extended to base (1), and one end that connecting rod (10) are located base (1) below is fixed with fixed plate (18), the other end of lever (11) extends to the bottom of adjusting collar (12), stop device still establishes at the outside first spring of connecting rod (10) including the cover, and first spring is located between fixed plate (18) and base (1).
2. The cable mounting and adjusting frame for electric power engineering construction as claimed in claim 1, wherein the adjusting mechanism comprises a threaded column (7) rotatably connected to the bottom of the mounting hole (16), a first bevel gear (22) fixed outside the threaded column (7), a rotating shaft rotatably mounted on the outer wall of the fixed column (2) and having one end extending into the mounting hole (16), and a second bevel gear (23) fixed at one end of the rotating shaft inside the mounting hole (16) and engaged with the first bevel gear (22), the bottom of the mounting column (3) is provided with a threaded hole (6), the top of the threaded column (7) extends into the threaded hole (6) and is in threaded connection with the threaded hole (6), and the adjusting mechanism further comprises a rotary disc (8) fixed at the other end of the rotating shaft.
3. The cable mounting and adjusting bracket for electric power engineering construction as claimed in claim 2, wherein a handle (21) is mounted on the edge of the outer wall of one side of the turntable (8) far away from the rotating shaft.
4. The cable mounting and adjusting frame for electric power engineering construction as claimed in claim 1, wherein a limiting groove (20) is formed in an inner wall of one side of the mounting hole (16), a limiting block (13) with one end extending into the limiting groove (20) is fixed at the bottom of an outer wall of one side of the mounting post (3), and the limiting block (13) is slidably connected with the limiting groove (20).
5. The cable mounting and adjusting frame for electric power engineering construction is characterized in that an accommodating hole (25) is formed in the inner wall of an adjusting sleeve (12), a limiting column (24) is located inside the accommodating hole (25), one end of the limiting column (24) abuts against the outer wall of a fixed column (2), the other end of the limiting column (24) extends to the outer side of the adjusting sleeve (12), a pull ring (26) is fixed to one end, located on the outer side of the adjusting sleeve (12), of the limiting column (24), a spring clamping block (28) located inside the accommodating hole (25) is fixed to the outer portion of the limiting column (24), a second spring located inside the accommodating hole (25) is sleeved on the outer portion of the limiting column (24), and the second spring is located on one side, away from the fixed column (2), of the spring clamping block (28).
6. The cable installation and adjustment frame for power engineering construction as claimed in claim 1, wherein the hinge mechanism comprises an installation groove (14) formed at the top of the connecting rod (10), a connection groove (15) formed at one side of the lever (11), and a connection shaft (29) penetrating the connection groove (15) and having two ends fixed on the inner walls of the two sides of the installation groove (14), respectively, the connection groove (15) is slidably connected with the connection shaft (29).
7. The cable installation and adjustment frame for electric power engineering construction as claimed in claim 1, wherein the limiting device further comprises a skid-proof plate (19) fixed on the bottom surface of the fixing plate (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010933684.6A CN112103886B (en) | 2020-09-08 | 2020-09-08 | Cable installation adjusting frame for electric power engineering construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010933684.6A CN112103886B (en) | 2020-09-08 | 2020-09-08 | Cable installation adjusting frame for electric power engineering construction |
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| Publication Number | Publication Date |
|---|---|
| CN112103886A CN112103886A (en) | 2020-12-18 |
| CN112103886B true CN112103886B (en) | 2021-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010933684.6A Active CN112103886B (en) | 2020-09-08 | 2020-09-08 | Cable installation adjusting frame for electric power engineering construction |
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| CN (1) | CN112103886B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114156817B (en) * | 2021-12-02 | 2024-05-07 | 国网江苏省电力有限公司淮安供电分公司 | Power distribution network wire insulation fastening locking system |
| CN114321605B (en) * | 2021-12-31 | 2024-03-01 | 北京中兴恒工程咨询有限公司 | Site survey device based on construction engineering cost is used |
| CN116667228B (en) * | 2023-07-26 | 2023-10-10 | 山东省邮电工程有限公司 | Cable laying auxiliary equipment for communication engineering construction |
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| CN209712193U (en) * | 2019-03-15 | 2019-12-03 | 徐小丽 | A kind of children 's preventive vaccination Liftable type seat |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN210441879U (en) * | 2019-09-25 | 2020-05-01 | 北京金房兴业测绘有限公司 | Total station rearview prism support frame |
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- 2020-09-08 CN CN202010933684.6A patent/CN112103886B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3820180A1 (en) * | 1988-06-14 | 1989-12-21 | Kolbus Gmbh & Co Kg | Pressing device for a paper-trimming machine |
| CN101091975A (en) * | 2007-07-23 | 2007-12-26 | 重庆大学 | Restriction boost type mould for introversive tube |
| CN105544639A (en) * | 2016-01-25 | 2016-05-04 | 天津汇康田科技研发有限公司 | Underwater waste collection system |
| CN107465147A (en) * | 2017-09-12 | 2017-12-12 | 国网山东省电力公司潍坊供电公司 | Multi-stage telescopic ground wire gun support arrangement |
| CN209712193U (en) * | 2019-03-15 | 2019-12-03 | 徐小丽 | A kind of children 's preventive vaccination Liftable type seat |
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| CN112103886A (en) | 2020-12-18 |
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