CN211465339U - Civil air defense door fixed axle welding jig - Google Patents
Civil air defense door fixed axle welding jig Download PDFInfo
- Publication number
- CN211465339U CN211465339U CN202020092301.2U CN202020092301U CN211465339U CN 211465339 U CN211465339 U CN 211465339U CN 202020092301 U CN202020092301 U CN 202020092301U CN 211465339 U CN211465339 U CN 211465339U
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Abstract
The utility model discloses a civil air defense door fixed axle welding jig, including base and the footstock of setting at the base top, one side of footstock is provided with two anchor clamps subassemblies, be provided with adjustable stop gear between anchor clamps subassembly and the footstock, the anchor clamps subassembly includes holder and clamping piece, the inboard of holder and clamping piece all is provided with the arc pad, one side of holder is fixed with two direction slide bars, and the both ends of clamping piece overlap respectively the surface at two direction slide bars; through set up two anchor clamps subassemblies of compriseing holder, clamping piece, direction slide bar, arc pad, diaphragm, roating seat, rotatory screw rod, screw hole and tight loop in one side of footstock for operating personnel is when welding people's air defense door fixed axle, and accessible anchor clamps subassembly presss from both sides tight spacing to people's air defense door fixed axle, thereby makes people's air defense door fixed axle more stable in follow-up welding process, gives other people the welding operation of air defense door fixed axle and brings conveniently.
Description
Technical Field
The utility model belongs to the technical field of people's air defense door fixed axle welding, concretely relates to people's air defense door fixed axle welding jig.
Background
The civil air defense door is a door of an entrance and an exit of civil protection engineering, the classification of the civil air defense door is more distinct, and the civil air defense door comprises a common single-leaf protective airtight door, a common double-leaf protective airtight door, an ordinary airtight door, a movable threshold single-leaf protective airtight door, a movable threshold double-leaf protective airtight door, an airtight door and other various civil air defense doors, and fixing shafts of the civil air defense doors are required to be welded and fixed with other connecting parts.
Present people's air defense door fixed axle when welding fixedly with other parts, need put people's air defense door fixed axle on the ground earlier, then operating personnel steps on people's air defense door fixed axle with the foot, and reuse welder carries out welding operation, and this kind of fixed mode of stepping on with the foot is not stable enough, leads to people's air defense door fixed axle skew that the position appears in welding process very easily to the welding operation who gives operating personnel brings inconveniently, for this reason the utility model provides a people's air defense door fixed axle welding jig.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a people's air defense door fixed axle welding jig to solve the current people's air defense door fixed axle that proposes in the above-mentioned background art when welding the fixed with other parts, need put people's air defense door fixed axle on the ground earlier, then operating personnel steps on people's air defense door fixed axle with the foot, reuse welder carries out welding operation, this kind is not stable enough with the fixed mode of stepping on of foot, lead to the skew that position appears in welding process to people's air defense door fixed axle very easily, thereby bring inconvenient problem for operating personnel's welding operation.
In order to achieve the above object, the utility model provides a following technical scheme: a welding fixture for a fixed shaft of a civil air defense door comprises a base and a top seat arranged at the top of the base, wherein two fixture components are arranged at one side of the top seat, an adjustable limiting mechanism is arranged between the clamp assembly and the top seat, the clamp assembly comprises a clamping seat and a clamping piece, the inner sides of the clamping seat and the clamping piece are respectively provided with an arc-shaped pad, one side of the clamping seat is fixed with two guide slide bars, and two ends of the clamping piece are respectively sleeved on the surfaces of the two guide slide bars, a transverse plate is arranged at one side of the clamping piece, the top end of the guide slide bar is welded and fixed with the transverse plate, the outer side surface of the clamping piece is fixed with a swivel base, and one side of the rotating seat is rotatably connected with a rotating screw rod, the transverse plate is internally provided with a threaded hole corresponding to the rotating screw rod, the top end of the rotary screw rod penetrates through the outer side of the transverse plate, and a fastening ring is fixed at the top end of the rotary screw rod.
Preferably, the adjustable limiting mechanism comprises a T-shaped sliding seat arranged on the surface of the outer side of the clamping seat, a T-shaped sliding groove matched with the T-shaped sliding seat is formed in the top seat, the T-shaped sliding seat is located in the T-shaped sliding groove, and a clamping mechanism is arranged between the T-shaped sliding seat and the T-shaped sliding groove.
Preferably, the clamping mechanism comprises two spring grooves arranged inside the T-shaped sliding seat, the bottom end of each spring groove is connected with a sliding plate, one side of each sliding plate is fixedly welded with a connecting rod, strip-shaped slideways corresponding to the connecting rods are arranged on the two sides of the top seat, the top end of each connecting rod is located inside each strip-shaped slideway, side pull plates corresponding to the connecting rods are arranged on the two sides of the top seat, the top end of each connecting rod is fixedly welded with the corresponding side pull plates, two limiting clamping blocks are symmetrically arranged on the inner sides of the side pull plates, and a plurality of circular clamping grooves corresponding to the limiting clamping blocks are uniformly formed in the surfaces of the two sides of the top seat.
Preferably, both sides of the side pulling plate are provided with U-shaped pulling openings, and the top end of the spring groove is provided with a rod hole corresponding to the connecting rod.
Preferably, the assembly groove corresponding with the arc pad has all been seted up to the inboard of clamping piece and holder, the bottom that the arc filled up is in the inside of assembly groove, the bottom surface that the arc filled up evenly is provided with the dop of a plurality of integrations, and the inside of assembly groove evenly sets up a plurality of major part draw-in grooves with dop looks adaptation.
Preferably, a rotating block is fixed at the bottom end of the rotating screw, a rotating groove matched with the rotating block is formed in the rotating seat, and the rotating block is located in the rotating groove.
Preferably, the mounting groove with direction slide bar looks adaptation is all seted up at the both ends of holder, and the bottom of direction slide bar is in the inside of mounting groove, the bottom mounting of direction slide bar has the threaded rod, and the top of threaded rod runs through to the outside of holder, the top cover of threaded rod is equipped with fastening nut.
Compared with the prior art, the beneficial effects of the utility model are that:
1. through set up two anchor clamps subassemblies by holder, clamping piece, direction slide bar, arc pad, diaphragm, roating seat, rotatory screw rod, screw hole and tight loop are constituteed in one side at the footstock for operating personnel is when welding people's air defense door fixed axle, and accessible anchor clamps subassembly presss from both sides tight spacing to people's air defense door fixed axle, thereby makes people's air defense door fixed axle more stable in follow-up welding process, gives other people the welding operation of air defense door fixed axle and brings conveniently, and it is very convenient that the anchor clamps subassembly used.
2. Through setting up the adjustable stop gear who comprises T shape slide, T shape spout, spring groove, sliding plate, connecting rod, bar slide, side arm-tie, spacing fixture block and circular draw-in groove for two anchor clamps subassemblies highly can be according to the nimble adjustment from top to bottom that goes on of actual conditions, thereby improve two anchor clamps subassemblies use flexibility, carry out the fixed clamp tightly with the people's air defense door fixed axle that satisfies different length.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a top view of the present invention;
FIG. 3 is a top cross-sectional view of the connection between the clamping member and the clamping base;
fig. 4 is a top cross sectional view of the junction of the side pulling plate and the T-shaped sliding seat in embodiment 2 of the present invention;
in the figure: 1. a base; 2. a side pulling plate; 3. a strip-shaped slideway; 4. a top seat; 5. a circular slot; 6. a T-shaped slide carriage; 7. a holder; 8. a clamping member; 9. rotating the screw; 10. a fastening ring; 11. a transverse plate; 12. a rotating base; 13. a guide slide bar; 14. an arc-shaped pad; 15. a T-shaped chute; 16. a connecting rod; 17. clamping a head; 18. a limiting clamping block; 19. a sliding plate; 20. a spring slot.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1 to 3, the present invention provides a technical solution: a welding fixture for a civil air defense door fixing shaft comprises a base 1 and a top seat 4 arranged at the top of the base 1 through welding, wherein two fixture components are arranged on one side of the top seat 4, an adjustable limiting mechanism is arranged between each fixture component and the top seat 4, each fixture component comprises a clamping seat 7 and a clamping piece 8, arc-shaped pads 14 are arranged on the inner sides of the clamping seat 7 and the clamping piece 8, each arc-shaped pad 14 is a rubber component, so that the clamping seat 7 and the clamping piece 8 cannot damage the surface of the civil air defense door fixing shaft when the civil air defense door fixing shaft is clamped and limited subsequently, the clamping seat 7 and the clamping piece 8 can clamp the civil air defense door fixing shaft more tightly, two guide slide bars 13 are fixed on one side of the clamping seat 7, two ends of the clamping piece 8 are respectively sleeved on the surfaces of the two guide slide bars 13, the clamping piece 8 can slide on the surfaces of the two guide slide bars 13, a transverse, and the top end of the guide slide bar 13 is welded and fixed with the transverse plate 11, the outer side surface of the clamping piece 8 is welded and fixed with a rotary seat 12, one side of the rotary seat 12 is rotatably connected with a rotary screw 9, a threaded hole corresponding to the rotary screw 9 is formed in the transverse plate 11, the top end of the rotary screw 9 penetrates through the outer side of the transverse plate 11, a fastening ring 10 is welded and fixed at the top end of the rotary screw 9, the rotary screw 9 can push the clamping piece 8 towards the direction of the clamping seat 7 after the fastening ring 10 rotates, the clamping limit of the civil air defense door fixing shaft is realized, the civil air defense door fixing shaft is more stable in the subsequent welding process, and convenience is brought to the welding operation of the civil air.
In this embodiment, it is preferred, the assembly groove corresponding to arc pad 14 is all seted up to clamping piece 8 and holder 7's inboard, arc pad 14's bottom is in the inside of assembly groove, arc pad 14's bottom surface evenly is provided with the dop 17 of a plurality of integrations, dop 17 is the rubber material component, dop 17's top diameter is twice a bit of dop 17 bottom diameter, and the inside of assembly groove evenly sets up a plurality of major part draw-in grooves with dop 17 looks adaptation, when making arc pad 14 follow-up needs to be changed, only need pull arc pad 14 power outward, cause dop 17 to be pulled out from the major part draw-in groove is inside, can pull down arc pad 14 and change, during follow-up installation, also only need push the inside of assembly groove with arc pad 14's bottom, and make dop 17 be crowded into the inside of major part draw-in groove can.
In this embodiment, preferably, the bottom end of the rotating screw 9 is welded and fixed with a rotating block, and a rotating groove adapted to the rotating block is formed in the rotating base 12, and the rotating block is located in the rotating groove, so that the bottom end of the rotating screw 9 can be smoothly connected with the rotating base 12 in a rotating manner.
In this embodiment, preferably, mounting grooves matched with the guide slide bars 13 are formed in both ends of the clamp base 7, the bottom ends of the guide slide bars 13 are located inside the mounting grooves, threaded rods are welded and fixed to the bottom ends of the guide slide bars 13, the top ends of the threaded rods penetrate through the outer side of the clamp base 7, and fastening nuts are sleeved on the top ends of the threaded rods, so that the bottom ends of the guide slide bars 13 can be fixed to the clamp base 7.
Example 2
Referring to fig. 1 to 4, the present invention provides a technical solution: a welding fixture for a civil air defense door fixing shaft comprises a base 1 and a top seat 4 arranged at the top of the base 1 through welding, wherein two fixture components are arranged on one side of the top seat 4, an adjustable limiting mechanism is arranged between each fixture component and the top seat 4, each fixture component comprises a clamping seat 7 and a clamping piece 8, arc-shaped pads 14 are arranged on the inner sides of the clamping seat 7 and the clamping piece 8, each arc-shaped pad 14 is a rubber component, so that the clamping seat 7 and the clamping piece 8 cannot damage the surface of the civil air defense door fixing shaft when the civil air defense door fixing shaft is clamped and limited subsequently, the clamping seat 7 and the clamping piece 8 can clamp the civil air defense door fixing shaft more tightly, two guide slide bars 13 are fixed on one side of the clamping seat 7, two ends of the clamping piece 8 are respectively sleeved on the surfaces of the two guide slide bars 13, the clamping piece 8 can slide on the surfaces of the two guide slide bars 13, a transverse, and the top end of the guide slide bar 13 is welded and fixed with the transverse plate 11, the outer side surface of the clamping piece 8 is welded and fixed with a rotary seat 12, one side of the rotary seat 12 is rotatably connected with a rotary screw 9, a threaded hole corresponding to the rotary screw 9 is formed in the transverse plate 11, the top end of the rotary screw 9 penetrates through the outer side of the transverse plate 11, a fastening ring 10 is welded and fixed at the top end of the rotary screw 9, the rotary screw 9 can push the clamping piece 8 towards the direction of the clamping seat 7 after the fastening ring 10 rotates, the clamping limit of the civil air defense door fixing shaft is realized, the civil air defense door fixing shaft is more stable in the subsequent welding process, and convenience is brought to the welding operation of the civil air.
In this embodiment, preferably, the adjustable limiting mechanism includes a T-shaped sliding seat 6 disposed on the outer side surface of the clamping seat 7 by welding, a T-shaped sliding groove 15 adapted to the T-shaped sliding seat 6 is disposed inside the top seat 4, and the T-shaped sliding seat 6 is disposed inside the T-shaped sliding groove 15, so that the T-shaped sliding seat 6 can slide inside the T-shaped sliding groove 15, the heights of the clamping seat 7 and the clamping member 8 are changed, and a clamping mechanism is disposed between the T-shaped sliding seat 6 and the T-shaped sliding groove 15.
In this embodiment, it is preferred, the block mechanism is including setting up two spring grooves 20 inside the T-shaped slide 6, and there is sliding plate 19 bottom of spring groove 20 through spring coupling, one side welded fastening of sliding plate 19 has connecting rod 16, the bar slide 3 corresponding with connecting rod 16 has all been seted up to the both sides of footstock 4, the top of connecting rod 16 is in the inside of bar slide 3, the both sides of footstock 4 all are provided with the side arm-tie 2 corresponding with connecting rod 16, and the top of connecting rod 16 and side arm-tie 2 welded fastening, the inboard of side arm-tie 2 is provided with two spacing fixture blocks 18 through the welding symmetry, and the both sides surface of footstock 4 evenly is provided with a plurality of circular draw-in grooves 5 corresponding with spacing fixture block 18, make after the T-shaped slide 6 slides can obtain spacingly, thereby make the height-adjustable of anchor clamps subassembly.
In this embodiment, preferably, U-shaped openings are formed on both sides of the side pulling plate 2, so that the side pulling plate 2 is easy to apply force when being pulled laterally, and a rod hole corresponding to the connecting rod 16 is formed at the top end of the spring slot 20, so that the connecting rod 16 can be pulled smoothly.
In this embodiment, it is preferred, the assembly groove corresponding to arc pad 14 is all seted up to clamping piece 8 and holder 7's inboard, arc pad 14's bottom is in the inside of assembly groove, arc pad 14's bottom surface evenly is provided with the dop 17 of a plurality of integrations, dop 17 is the rubber material component, dop 17's top diameter is twice a bit of dop 17 bottom diameter, and the inside of assembly groove evenly sets up a plurality of major part draw-in grooves with dop 17 looks adaptation, when making arc pad 14 follow-up needs to be changed, only need pull arc pad 14 power outward, cause dop 17 to be pulled out from the major part draw-in groove is inside, can pull down arc pad 14 and change, during follow-up installation, also only need push the inside of assembly groove with arc pad 14's bottom, and make dop 17 be crowded into the inside of major part draw-in groove can.
In this embodiment, preferably, the bottom end of the rotating screw 9 is welded and fixed with a rotating block, and a rotating groove adapted to the rotating block is formed in the rotating base 12, and the rotating block is located in the rotating groove, so that the bottom end of the rotating screw 9 can be smoothly connected with the rotating base 12 in a rotating manner.
In this embodiment, preferably, mounting grooves matched with the guide slide bars 13 are formed in both ends of the clamp base 7, the bottom ends of the guide slide bars 13 are located inside the mounting grooves, threaded rods are welded and fixed to the bottom ends of the guide slide bars 13, the top ends of the threaded rods penetrate through the outer side of the clamp base 7, and fastening nuts are sleeved on the top ends of the threaded rods, so that the bottom ends of the guide slide bars 13 can be fixed to the clamp base 7.
The utility model discloses a theory of operation and use flow: when an operator needs to weld the civil air defense door fixing shaft, the civil air defense door fixing shaft can be inserted into the inner sides of the two clamp assemblies, the clamping seat 7 and the clamping piece 8 can be respectively positioned at two stable sides of the civil air defense door fixing shaft, then the fastening ring 10 is rotated and screwed clockwise, the rotating screw 9 can push the rotating seat 12 towards the clamping seat 7, the rotating seat 12 pushes the clamping piece 8 towards the clamping seat 7 until the clamping piece 8 and the clamping seat 7 can clamp the civil air defense door fixing shaft, the civil air defense door fixing shaft can be fixed, at the moment, the civil air defense door fixing shaft can be welded, the civil air defense door fixing shaft can be more stable when being welded under the action of the clamp assemblies, so that convenience is brought to the welding operation of the civil air defense door fixing shaft, after the civil air defense door fixing shaft is welded, the fastening ring 10 only needs to be rotated and screwed anticlockwise, so that the fixing shaft of the civil air defense door can be smoothly taken down without clamping the fixing shaft of the civil air defense door by the clamping seat 7 and the clamping piece 8;
when an operator needs to adjust the heights of the two clamp assemblies, the side pull plates 2 on the two sides of the top seat 4 are pulled by force and the connecting rod 16 can pull the sliding plate 19 to the top end of the spring groove 20 and extrude the spring in the spring groove 20 until the limiting clamping block 18 is pulled out from the circular clamping groove 5, so that the limiting clamping block 18 is not limited to the side pull plates 2, at the moment, the two side pull plates 2 can be directly pushed up and down together, the T-shaped sliding seat 6 can slide up and down in the T-shaped sliding groove 15, the heights of the clamp assemblies can be changed, after the height is adjusted to a proper height, the side pull plates 2 are only required to be loosened, the spring in the spring groove 20 pushes the sliding plate 19 back, the connecting rod 16 pulls the side pull plates 2 back, and the limiting clamping block 18 can be clamped into the circular clamping grooves 5 at other positions, so that the side pull plates 2 can be limited again, thereby make T shape slide 6 and anchor clamps subassembly obtain spacingly, because the both sides surface of footstock 4 evenly is provided with a plurality of circular draw-in grooves 5 corresponding with spacing fixture block 18 for the height of T shape slide 6 can be adjusted from top to bottom, thereby makes the height of two anchor clamps subassemblies adjust from top to bottom according to actual conditions is nimble.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a people's air defense door fixed axle welding jig, includes base (1) and footstock (4) of setting at base (1) top, one side of footstock (4) is provided with two anchor clamps subassemblies, be provided with adjustable stop gear, its characterized in that between anchor clamps subassembly and footstock (4): the clamp assembly comprises a clamp seat (7) and a clamping piece (8), arc-shaped pads (14) are arranged on the inner sides of the clamp seat (7) and the clamping piece (8), two guide sliding rods (13) are fixed on one side of the clamp seat (7), and two ends of the clamping piece (8) are respectively sleeved on the surfaces of the two guide slide bars (13), a transverse plate (11) is arranged on one side of the clamping piece (8), the top end of the guide slide bar (13) is welded and fixed with the transverse plate (11), the outer side surface of the clamping piece (8) is fixed with a rotary seat (12), and one side of the rotating seat (12) is rotatably connected with a rotating screw (9), the transverse plate (11) is internally provided with a threaded hole corresponding to the rotary screw rod (9), the top end of the rotating screw rod (9) penetrates through the outer side of the transverse plate (11), and a fastening ring (10) is fixed at the top end of the rotating screw rod (9).
2. The people's air defense door fixed shaft welding jig of claim 1, characterized in that: adjustable stop gear is including setting up T shape slide (6) at holder (7) outside surface, T shape spout (15) with T shape slide (6) looks adaptation are seted up to the inside of footstock (4), and T shape slide (6) are in the inside of T shape spout (15), be provided with block mechanism between T shape slide (6) and T shape spout (15).
3. The people's air defense door fixed shaft welding jig of claim 2, characterized in that: the clamping mechanism comprises two spring grooves (20) arranged inside a T-shaped sliding seat (6), the bottom ends of the spring grooves (20) are connected with a sliding plate (19), one side of the sliding plate (19) is fixedly welded with a connecting rod (16), strip-shaped slide ways (3) corresponding to the connecting rod (16) are arranged on two sides of a top seat (4), the top end of the connecting rod (16) is located inside the strip-shaped slide ways (3), side pull plates (2) corresponding to the connecting rod (16) are arranged on two sides of the top seat (4), the top end of the connecting rod (16) is fixedly welded with the side pull plates (2), two limiting clamping blocks (18) are symmetrically arranged on the inner sides of the side pull plates (2), and a plurality of circular clamping grooves (5) corresponding to the limiting clamping blocks (18) are uniformly formed in the surfaces of two sides of the top seat (4).
4. The people's air defense door fixed shaft welding jig of claim 3, characterized in that: u-shaped openings are formed in the two sides of the side pulling plate (2), and rod holes corresponding to the connecting rods (16) are formed in the top ends of the spring grooves (20).
5. The people's air defense door fixed shaft welding jig of claim 1, characterized in that: the inboard of clamping piece (8) and holder (7) all seted up with arc pad (14) corresponding assembly groove, the bottom that arc pad (14) is in the inside of assembly groove, the bottom surface of arc pad (14) evenly is provided with dop (17) of a plurality of integrations, and the inside of assembly groove evenly sets up a plurality of big head draw-in grooves with dop (17) looks adaptation.
6. The people's air defense door fixed shaft welding jig of claim 1, characterized in that: the bottom end of the rotary screw rod (9) is fixed with a rotary block, a rotary groove matched with the rotary block is formed in the rotary seat (12), and the rotary block is located in the rotary groove.
7. The people's air defense door fixed shaft welding jig of claim 1, characterized in that: the mounting groove with direction slide bar (13) looks adaptation is all seted up at the both ends of holder (7), and the bottom of direction slide bar (13) is in the inside of mounting groove, the bottom mounting threaded rod of direction slide bar (13), and the outside of the top of threaded rod running through to holder (7), the top cover of threaded rod is equipped with fastening nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020092301.2U CN211465339U (en) | 2020-01-16 | 2020-01-16 | Civil air defense door fixed axle welding jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020092301.2U CN211465339U (en) | 2020-01-16 | 2020-01-16 | Civil air defense door fixed axle welding jig |
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| CN211465339U true CN211465339U (en) | 2020-09-11 |
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| CN202020092301.2U Active CN211465339U (en) | 2020-01-16 | 2020-01-16 | Civil air defense door fixed axle welding jig |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112775863A (en) * | 2020-12-18 | 2021-05-11 | 山东能源重装集团鲁南装备制造有限公司 | Auxiliary device for assembling door cover plate of electric cabinet |
| CN114029673A (en) * | 2021-10-22 | 2022-02-11 | 临澧金华天机械制造有限公司 | Tower crane jib loading boom welding set |
| CN114370128A (en) * | 2021-12-16 | 2022-04-19 | 上海绿地建设(集团)有限公司 | Construction steel bar location structure |
| CN114436005A (en) * | 2020-11-03 | 2022-05-06 | 湖南绿生永固新材料有限公司 | Novel mica tape is around rolling up device |
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2020
- 2020-01-16 CN CN202020092301.2U patent/CN211465339U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114436005A (en) * | 2020-11-03 | 2022-05-06 | 湖南绿生永固新材料有限公司 | Novel mica tape is around rolling up device |
| CN112775863A (en) * | 2020-12-18 | 2021-05-11 | 山东能源重装集团鲁南装备制造有限公司 | Auxiliary device for assembling door cover plate of electric cabinet |
| CN114029673A (en) * | 2021-10-22 | 2022-02-11 | 临澧金华天机械制造有限公司 | Tower crane jib loading boom welding set |
| CN114029673B (en) * | 2021-10-22 | 2023-11-07 | 临澧金华天机械制造有限公司 | Tower crane boom welding set |
| CN114370128A (en) * | 2021-12-16 | 2022-04-19 | 上海绿地建设(集团)有限公司 | Construction steel bar location structure |
| CN114370128B (en) * | 2021-12-16 | 2024-04-12 | 上海绿地建设(集团)有限公司 | Construction reinforcing bar location structure |
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