CN112455495A - Rotary connecting device for rail transit - Google Patents
Rotary connecting device for rail transit Download PDFInfo
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- CN112455495A CN112455495A CN202011346540.7A CN202011346540A CN112455495A CN 112455495 A CN112455495 A CN 112455495A CN 202011346540 A CN202011346540 A CN 202011346540A CN 112455495 A CN112455495 A CN 112455495A
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- fixedly connected
- frame
- wall
- pulley
- rail transit
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- 238000003466 welding Methods 0.000 claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 238000004804 winding Methods 0.000 claims description 12
- 230000000903 blocking effect Effects 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 13
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 6
- 235000017491 Bambusa tulda Nutrition 0.000 description 6
- 241001330002 Bambuseae Species 0.000 description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 6
- 239000011425 bamboo Substances 0.000 description 6
- 239000004020 conductor Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L1/00—Devices along the route controlled by interaction with the vehicle or train
- B61L1/18—Railway track circuits
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Manipulator (AREA)
Abstract
The invention discloses a rotary connecting device for rail transit, which comprises a frame, a wire feeding cylinder, a fixed wire end, a welding motor and a welding head, wherein the wire feeding cylinder is fixedly connected to the left side of the frame, the fixed wire end is spliced on the right side wall of the frame, the welding motor is fixedly connected to the inner wall of the frame, the welding head is fixedly connected to the lower side of the welding motor, the upper end of the frame is rotatably connected with a rotating handle, the lower end of the rotating handle is provided with a transmission mechanism, and the outer surface of the wire feeding cylinder is sleeved with a movable wire end. This swivelling joint device for track traffic uses through the cooperation of slider, take-up pulley and cowl isotructure when using to reach the stable effect of welding, used through the cooperation of ratch, gear and take-up pulley isotructure, thereby reached and sheltered from abundant effect, used through the cooperation of threaded rod, cover block and fly leaf isotructure, thereby reached and sent the accurate effect of line.
Description
Technical Field
The invention belongs to the technical field of rail transit, and particularly relates to a rotary connecting device for rail transit.
Background
The rail transit is a type of transportation means or transportation system in which an operating vehicle needs to run on a specific rail, the most typical rail transit is a railway system consisting of a traditional train and a standard railway, and with the diversified development of train and railway technologies, the rail transit is more and more types, not only extends over long-distance land transportation, but also is widely applied to urban public transportation at medium and short distances, and nowadays, the intervention of a conducting wire is provided in various types of rail transit, so that the transportation and connection of the conducting wire are particularly critical.
The conductive wire mainly plays a role in transmitting current in rail transit, and in order to ensure the orderly progress of the rail transit, the length and the stability of the conductive wire are important, in the rail traffic accident engineering, because of different positions of construction areas, the conductor wire needs to be frequently extended, in the prior art, constructors generally fixedly connect a conductor head to be extended to a new longer conductor wire, and the mode generally only can realize the conductor wire with lower quality, when the mass of the rough lead is larger, the manual operation is troublesome, which not only needs more manpower, but also is difficult to ensure the stability in the welding process, in particular, the rough conductive wire can generate a large amount of sparks during welding, and the direct manual operation can bring great danger to users, and meanwhile, the manual operation has low applicability.
Therefore, we propose a rotary connection device for rail transit to solve the above problems.
Disclosure of Invention
The invention aims to solve the problems and provides a rotary connecting device for rail transit, which has the advantages of automatic positioning, stable welding, sufficient shielding and accurate wire feeding.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a swivelling joint device for track traffic, includes the frame, send a line section of thick bamboo, fixed thread end, welding motor and soldered connection, send a line section of thick bamboo fixed connection in the left side of frame, fixed thread end pegs graft on the right side wall of frame, welding motor fixed connection is on the inner wall of frame, soldered connection fixed connection is at the downside of welding motor, the upper end of frame is rotated and is connected with and changes the handle, change the lower extreme of handle and install drive mechanism, the surface that sends a line section of thick bamboo has cup jointed movable thread end, the left side fixedly connected with fixed plate of frame inner wall, the upper end fixedly connected with installing frame of fixed plate, the inboard installation of installing frame blocks mechanism.
Preferably, the transmission mechanism comprises a first bevel gear, a second bevel gear, a threaded rod and a sleeve block, the first bevel gear is fixedly connected to the lower end of the rotating handle, the second bevel gear is meshed with the outer surface of the first bevel gear, the threaded rod is fixedly connected to the middle of the second bevel gear, the sleeve block is in threaded connection with the outer surface of the threaded rod, and the lower end of the sleeve block is provided with the wire feeding mechanism.
Preferably, send line mechanism to comprise fly leaf, sleeve, draw-in groove, fixed frame, inserted bar and first spring, fly leaf fixed connection is at the lower extreme of lagging, fixed frame fixed connection is in the left side of fly leaf, the inserted bar is pegged graft in the inboard of fixed frame, the one end fixed connection of first spring is in the upper end of inserted bar, the other end fixed connection of first spring is on the inner wall of fixed frame, sleeve sliding connection is at the lower extreme of inserted bar, the draw-in groove is seted up at telescopic surface, link gear is installed to the lower extreme of fly leaf.
Preferably, the linkage mechanism comprises a toothed bar, a gear, a take-up pulley, a traction rope and a guide pulley, wherein the toothed bar is fixedly connected to the lower end of the movable plate, the gear is meshed with the lower end of the toothed bar, the take-up pulley is fixedly connected to the middle of the gear, the traction rope is fixedly connected to the outer surface of the take-up pulley, and the guide pulley is fixedly connected to the inner wall of the frame.
Preferably, stop mechanism comprises spacing groove, slider, take-up pulley, cowl, contact piece and second spring, the left side at the fixed plate is seted up to the spacing groove, slider sliding connection is on the inner wall of spacing groove, the take-up pulley rotates to be connected in the left upper end of fixed plate, the back fixedly connected with cowl of take-up pulley, contact piece fixed connection is in cowl's inboard, the outside at cowl is connected to the one end of second spring, the other end fixed connection of second spring is on the inner wall of installing frame.
Preferably, the upper end of the nest block is slidably connected to the upper inner wall of the frame.
Preferably, the right end of the movable thread end extends into the inner wall of the sleeve, and the movable thread end and the fixed thread end are correspondingly arranged.
Preferably, the lower end of the gear is fixedly connected to the inner wall of the lower side of the frame, and the take-up pulley and the gear are concentrically and fixedly connected.
Preferably, the middle part of the traction rope is sleeved on the outer surface of the guide wheel, one end, far away from the take-up pulley, of the traction rope is fixedly connected to the left end of the sliding block, and the sliding block is fixedly connected with the take-up pulley through the traction rope.
Preferably, the arc-shaped baffle plates are provided with two arc-shaped baffle plates, and the inner walls of the two arc-shaped baffle plates are fixedly connected with two contact blocks.
Compared with the prior art, the invention has the beneficial effects that:
1. this swivelling joint device for track traffic uses through the cooperation of draw-in groove, fixed frame and inserted bar isotructure when using, at first derives the activity end of a thread, cup joints the sleeve at the surface of activity end of a thread again, at this moment removes the sleeve, goes into the draw-in groove in the sleeve until the lower extreme card of upper and lower both sides inserted bar, fixes a position sleeve and activity end of a thread gradually through the draw-in groove to automatic positioning's effect has been reached.
2. This swivelling joint device for track traffic is when using, and through the slider, the cooperation of spiral wheel and cowl isotructure is used, can drive the cowl at the back behind the spiral wheel atress and take place to rotate, and two cowl can keep away from each other afterwards, and up to having realized switching on between soldered connection and the fixed thread end, after the terminal surface contact of activity thread end fixed thread end, the soldered connection just can be in the same place activity thread end and fixed thread end welding to the stable effect of welding has been reached.
3. This swivelling joint device for track traffic uses through the cooperation of ratch, gear and take-up pulley isotructure when using, moves the back on the ratch, and the gear can drive take-up pulley reverse rotation, and the haulage rope is loosened gradually, and at this moment the second spring needs to resume gradually, drives cowl gradually and rotates to the inboard, can shelter from again between the fixed end of a thread of bonding tool picture at this moment to reached and sheltered from abundant effect.
4. When the rotary connecting device for track traffic is used, the threaded rod, the sleeve block, the movable plate and the like are matched for use, the threaded rod drives the sleeve block to gradually move towards the right side along the inner wall of the frame after rotating, and the movable plate of the lower side can be driven by the sleeve block to move towards the right side along with the sleeve block, so that the movable plate gradually drives the movable line head inserted inside to move towards the right side and is gradually close to the fixed line head on the right side, and the effect of accurate line feeding is achieved.
Drawings
Fig. 1 is a schematic structural diagram of a rotary connection device for rail transit according to the present invention;
FIG. 2 is an enlarged schematic view of region A in FIG. 1;
FIG. 3 is an enlarged schematic view of region B in FIG. 1;
FIG. 4 is a schematic view of the connection structure of the slider, the winding wheel, the arc-shaped baffle and the like according to the present invention;
fig. 5 is an enlarged schematic view of region C in fig. 1.
In the figure: the wire winding machine comprises a frame 1, a wire feeding barrel 2, a fixed wire end 3, a welding motor 4, a welding head 5, a rotating handle 6, a first bevel gear 7, a second bevel gear 8, a threaded rod 9, a set block 10, a movable plate 11, a sleeve 12, a movable wire end 13, a clamping groove 14, a fixed frame 15, an inserted bar 16, a first spring 17, a toothed bar 18, a gear 19, a wire winding wheel 20, a traction rope 21, a guide wheel 22, a fixed plate 23, a mounting frame 24, a limiting groove 25, a sliding block 26, a wire winding wheel 27, an arc-shaped baffle 28, a contact block 29 and a second spring 30.
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 rotary connection device for rail transit, including frame 1, send a line section of thick bamboo 2, fixed thread end 3, welding motor 4 and soldered connection 5, send a line section of thick bamboo 2 fixed connection in the left side of frame 1, fixed thread end 3 pegs graft on the right side wall of frame 1, welding motor 4 fixed connection is on the inner wall of frame 1, soldered connection 5 fixed connection is on the downside of welding motor 4, the model of welding motor 4 is ZX7-125, the upper end of frame 1 rotates and is connected with commentaries on classics handle 6, change the lower extreme of handle 6 and install drive mechanism, send the surface of a line section of thick bamboo 2 to cup joint movable thread end 13, the left side fixedly connected with fixed plate 23 of frame 1 inner wall, the upper end fixedly connected with installing frame 24 of fixed plate 23, the inboard installation stop mechanism of installing frame 24.
The transmission mechanism comprises a first bevel gear 7, a second bevel gear 8, a threaded rod 9 and a sleeve block 10, wherein the first bevel gear 7 is fixedly connected to the lower end of the rotating handle 6, the second bevel gear 8 is meshed with the outer surface of the first bevel gear 7, the threaded rod 9 is fixedly connected to the middle of the second bevel gear 8, the sleeve block 10 is in threaded connection with the outer surface of the threaded rod 9, the upper end of the sleeve block 10 is in sliding connection with the inner wall of the upper side of the frame 1, and the lower end of the sleeve block 10 is provided with a wire feeding mechanism.
The wire feeding mechanism comprises a movable plate 11, a sleeve 12, a clamping groove 14, a fixed frame 15, an inserting rod 16 and a first spring 17, wherein the movable plate 11 is fixedly connected to the lower end of the sleeve block 10, the fixed frame 15 is fixedly connected to the left side of the movable plate 11, the inserting rod 16 is inserted into the inner side of the fixed frame 15, one end of the first spring 17 is fixedly connected to the upper end of the inserting rod 16, the other end of the first spring 17 is fixedly connected to the inner wall of the fixed frame 15, the sleeve 12 is slidably connected to the lower end of the inserting rod 16, the clamping groove 14 is formed in the outer surface of the sleeve 12, the right end of the movable wire end 13 extends into the inner wall of the sleeve 12, the movable wire end 13 is arranged corresponding to the position of the fixed wire end 3, the inserting rod 16 always has a movement trend towards the lower end due to the design of the first spring 17, the fixing effect of the lower end of the inserting rod 16, the lower end of the movable plate 11 is provided with a linkage mechanism.
The linkage mechanism comprises a toothed bar 18, a gear 19, a take-up pulley 20, a traction rope 21 and a guide pulley 22, wherein the toothed bar 18 is fixedly connected to the lower end of the movable plate 11, the gear 19 is meshed with the lower end of the toothed bar 18, the take-up pulley 20 is fixedly connected to the middle of the gear 19, the lower end of the gear 19 is fixedly connected to the inner wall of the lower side of the frame 1, the take-up pulley 20 and the gear 19 are fixedly connected concentrically, the traction rope 21 is fixedly connected to the outer surface of the take-up pulley 20, and the guide pulley 22 is fixedly connected to the inner wall of.
The stopping mechanism comprises a limiting groove 25, a sliding block 26, a winding wheel 27, arc-shaped baffles 28, contact blocks 29 and a second spring 30, wherein the limiting groove 25 is arranged on the left side of a fixing plate 23, the sliding block 26 is connected on the inner wall of the limiting groove 25 in a sliding manner, the winding wheel 27 is connected to the upper end of the left side of the fixing plate 23 in a rotating manner, the middle part of a traction rope 21 is sleeved on the outer surface of a guide wheel 22, one end, far away from the winding wheel 20, of the traction rope 21 is fixedly connected to the left end of the sliding block 26, the sliding block 26 is fixedly connected with the winding wheel 27 through the traction rope 21, the back surface of the winding wheel 27 is fixedly connected with the arc-shaped baffles 28, the contact blocks 29 are fixedly connected to the inner side of the arc-shaped baffles 28, one end of the second spring 30 is connected to the outer side of the arc-shaped baffles 28, the other end of the, the design of the second spring 30 facilitates automatic repositioning of the flapper 28 and facilitates the reciprocating of the welding operation.
The operating principle of the present invention will now be described as follows:
when the rotary connecting device for rail transit is used, a user firstly sends an original fixed thread end 3 on a rail to the right side of a frame 1, adjusts the position of the frame 1 until the fixed thread end 3 is fixed by a contact block 29, pulls out a movable thread end 13 on the outer surface of a left thread sending cylinder 2, sleeves 12 on the outer surface of the movable thread end 13, moves the sleeves 12 until the lower ends of inserting rods 16 on the upper side and the lower side are clamped into clamping grooves 14 in the sleeves 12, and because a first spring 17 is in a compressed state initially, the inserting rods 16 on the upper side and the lower side move inwards along a fixed frame 15 at this time, and gradually positions the sleeves 12 and the movable thread end 13 through the clamping grooves 14;
then, a user rotates the rotating handle 6, the rotating handle 6 drives the first bevel gear 7 on the lower side to rotate, so that the first bevel gear 7 drives the outer surface positioning second bevel gear 8 to rotate, then the second bevel gear 8 drives the threaded rod 9 in the middle to rotate, the sleeve block 10 on the outer surface of the threaded rod 9 gradually moves towards the right side along the inner wall of the frame 1, at the moment, the sleeve block 10 can drive the movable plate 11 on the lower side to move towards the right side, and the movable plate 11 gradually drives the movable wire head 13 inserted and connected on the inner side to move towards the right side and gradually approaches to the fixed wire;
meanwhile, after the movable plate 11 moves to the right side, the rack bar 18 at the lower end moves to the right side along with the movable plate, so that the rack bar 18 gradually drives the gear 19 at the lower side to rotate, the gear 19 rotates to drive the take-up pulley 20 at the middle part to rotate, at this time, the take-up pulley 20 gradually receives the traction rope 21 at the outer surface, so that the traction rope 21 gradually bypasses the guide pulley 22 to move, so that the other end of the traction rope 21 drives the slider 26 to move downwards, at this time, the slider 26 moves downwards along the limiting groove 25, at this time, the upper end of the traction rope 21 drives the take-up pulley 27 to rotate along with the pull rope, at this time, the take-up pulley 27 drives the arc-shaped baffle 28 at the back side to rotate, then, the two arc-shaped baffles 28 are far away from each other, at the same time, the second spring 30 is compressed until the welding head 5 is communicated with the fixed, the welding head 5 welds the movable wire end 13 and the fixed wire end 3 together.
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 (10)
1. A rotary connecting device for rail transit comprises a frame (1), a wire feeding cylinder (2), a fixed wire end (3), a welding motor (4) and a welding head (5), and is characterized in that the wire feeding cylinder (2) is fixedly connected to the left side of the frame (1), the fixed wire end (3) is inserted into the right side wall of the frame (1), the welding motor (4) is fixedly connected to the inner wall of the frame (1), the welding head (5) is fixedly connected to the lower side of the welding motor (4), the upper end of the frame (1) is rotatably connected with a rotating handle (6), the lower end of the rotating handle (6) is provided with a transmission mechanism, the outer surface of the wire feeding cylinder (2) is sleeved with a movable wire end (13), the left side of the inner wall of the frame (1) is fixedly connected with a fixing plate (23), the upper end of the fixing plate (23) is fixedly connected with a mounting frame (24), and a blocking mechanism is arranged on the inner side of the mounting frame (24).
2. The rotary connection device for the rail transit as claimed in claim 1, wherein the transmission mechanism is composed of a first bevel gear (7), a second bevel gear (8), a threaded rod (9) and a sleeve block (10), the first bevel gear (7) is fixedly connected to the lower end of the rotating handle (6), the second bevel gear (8) is meshed with the outer surface of the first bevel gear (7), the threaded rod (9) is fixedly connected to the middle of the second bevel gear (8), the sleeve block (10) is in threaded connection with the outer surface of the threaded rod (9), and a wire feeding mechanism is installed at the lower end of the sleeve block (10).
3. A rotary connection device for rail transit according to claim 1, the wire feeding mechanism consists of a movable plate (11), a sleeve (12), a clamping groove (14), a fixed frame (15), an inserting rod (16) and a first spring (17), the movable plate (11) is fixedly connected with the lower end of the sleeve block (10), the fixed frame (15) is fixedly connected with the left side of the movable plate (11), the inserted bar (16) is inserted into the inner side of the fixed frame (15), one end of the first spring (17) is fixedly connected with the upper end of the inserted bar (16), the other end of the first spring (17) is fixedly connected on the inner wall of the fixed frame (15), sleeve (12) sliding connection is at the lower extreme of inserted bar (16), draw-in groove (14) are seted up in the surface of sleeve (12), the link gear is installed to the lower extreme of fly leaf (11).
4. The rotary connection device for rail transit according to claim 3, wherein the linkage mechanism is composed of a rack bar (18), a gear (19), a take-up pulley (20), a traction rope (21) and a guide pulley (22), the rack bar (18) is fixedly connected to the lower end of the movable plate (11), the gear (19) is engaged with the lower end of the rack bar (18), the take-up pulley (20) is fixedly connected to the middle of the gear (19), the traction rope (21) is fixedly connected to the outer surface of the take-up pulley (20), and the guide pulley (22) is fixedly connected to the inner wall of the frame (1).
5. A rotary connection device for rail transit according to claim 4, the blocking mechanism consists of a limiting groove (25), a sliding block (26), a winding wheel (27), an arc-shaped baffle plate (28), a contact block (29) and a second spring (30), the limiting groove (25) is arranged at the left side of the fixing plate (23), the sliding block (26) is connected on the inner wall of the limiting groove (25) in a sliding way, the winding wheel (27) is rotatably connected with the upper end of the left side of the fixing plate (23), the back of the winding wheel (27) is fixedly connected with an arc-shaped baffle plate (28), the contact block (29) is fixedly connected with the inner side of the arc-shaped baffle plate (28), one end of the second spring (30) is connected with the outer side of the arc-shaped baffle plate (28), the other end of the second spring (30) is fixedly connected to the inner wall of the mounting frame (24).
6. A swivelling joint as claimed in claim 2, characterized in that the upper end of the socket block (10) is slidably connected to the upper inner wall of the frame (1).
7. A rotary joint for rail transit according to claim 1, characterized in that the right end of the movable thread end (13) extends into the inner wall of the sleeve (12), and the movable thread end (13) is arranged in correspondence with the position of the fixed thread end (3).
8. A rotating connection device for rail transit according to claim 4, characterized in that the lower end of the gear (19) is fixedly connected to the lower inner wall of the frame (1), and the take-up pulley (20) is fixedly connected concentrically with the gear (19).
9. The rotary connection device for rail transit according to claim 5, wherein the middle of the traction rope (21) is sleeved on the outer surface of the guide wheel (22), one end of the traction rope (21) far away from the take-up pulley (20) is fixedly connected to the left end of the sliding block (26), and the sliding block (26) is fixedly connected with the take-up pulley (27) through the traction rope (21).
10. A swivelling joint device for track traffic as claimed in claim 5, characterized in that a total of two of the arc-shaped baffles (28) are provided, and two contact blocks (29) are fixedly connected to the inner wall of both arc-shaped baffles (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011346540.7A CN112455495A (en) | 2020-11-26 | 2020-11-26 | Rotary connecting device for rail transit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011346540.7A CN112455495A (en) | 2020-11-26 | 2020-11-26 | Rotary connecting device for rail transit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112455495A true CN112455495A (en) | 2021-03-09 |
Family
ID=74809490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011346540.7A Withdrawn CN112455495A (en) | 2020-11-26 | 2020-11-26 | Rotary connecting device for rail transit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112455495A (en) |
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| CA2027754A1 (en) * | 1989-12-14 | 1991-06-15 | Larry C. Nickell | High speed precision yarn winding system |
| CN105269131A (en) * | 2015-10-29 | 2016-01-27 | 桂林华森电力科技有限公司 | Range-adjustable welding arc blocking device |
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| CN108365476A (en) * | 2017-12-14 | 2018-08-03 | 海安睿华纺织科技有限公司 | A kind of city electric construction peace engineering repairing wiring unit and its application method |
| CN108448308A (en) * | 2018-04-03 | 2018-08-24 | 芜湖华佳新能源技术有限公司 | A kind of new-energy automobile charging unit |
| CN208644445U (en) * | 2018-05-03 | 2019-03-26 | 深圳市研想科技有限公司 | Automatic soldering device is used in a kind of processing of wire rod |
| CN209255405U (en) * | 2018-11-12 | 2019-08-16 | 肇庆市飞虹机电设备有限公司 | A kind of bending machine bend pipe pretreatment unit |
| CN110523668A (en) * | 2019-07-26 | 2019-12-03 | 怀宁县三禾保洁服务有限公司 | A kind of clean method for gas station's video probe |
| CN210703348U (en) * | 2019-10-11 | 2020-06-09 | 常熟市路安达智能装备有限公司 | Robot positioner precision positioning mechanism |
| CN211584082U (en) * | 2020-01-08 | 2020-09-29 | 马晓莉 | Dressing change device for obstetrics and gynecology department |
| CN211804580U (en) * | 2020-02-21 | 2020-10-30 | 兖矿济宁化工装备有限公司 | Special welding machine for multi-station welding |
| CN111987255A (en) * | 2018-05-28 | 2020-11-24 | 纪田贤慧 | New energy automobile energy storage battery box convenient to access |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2027754A1 (en) * | 1989-12-14 | 1991-06-15 | Larry C. Nickell | High speed precision yarn winding system |
| CN105269131A (en) * | 2015-10-29 | 2016-01-27 | 桂林华森电力科技有限公司 | Range-adjustable welding arc blocking device |
| CN207326246U (en) * | 2017-10-25 | 2018-05-08 | 佛山市长富宝佳家居用品有限公司 | A kind of Full-automatic welding equipment for furniture welding |
| CN207475089U (en) * | 2017-11-27 | 2018-06-08 | 黄淮学院 | A kind of good threading apparatus of elasticity for building |
| CN108365476A (en) * | 2017-12-14 | 2018-08-03 | 海安睿华纺织科技有限公司 | A kind of city electric construction peace engineering repairing wiring unit and its application method |
| CN108448308A (en) * | 2018-04-03 | 2018-08-24 | 芜湖华佳新能源技术有限公司 | A kind of new-energy automobile charging unit |
| CN208644445U (en) * | 2018-05-03 | 2019-03-26 | 深圳市研想科技有限公司 | Automatic soldering device is used in a kind of processing of wire rod |
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| CN110523668A (en) * | 2019-07-26 | 2019-12-03 | 怀宁县三禾保洁服务有限公司 | A kind of clean method for gas station's video probe |
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| CN211584082U (en) * | 2020-01-08 | 2020-09-29 | 马晓莉 | Dressing change device for obstetrics and gynecology department |
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Application publication date: 20210309 |