CN112388527A - Flat-bulb steel chuck - Google Patents
Flat-bulb steel chuck Download PDFInfo
- Publication number
- CN112388527A CN112388527A CN202011172231.2A CN202011172231A CN112388527A CN 112388527 A CN112388527 A CN 112388527A CN 202011172231 A CN202011172231 A CN 202011172231A CN 112388527 A CN112388527 A CN 112388527A
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- flat
- bulb
- rotating shaft
- iron
- shaped shell
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
- B25B11/002—Magnetic work holders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses a flat-bulb steel chuck which comprises a U-shaped shell, a connecting upright post, flat-bulb steel, a top groove, a lock head, a rotating shaft elastic mechanism, a connecting fin, a pressing plate, a compression coil spring, a guide straight rod, a guide hole, a limiting block, a rotating shaft, a reinforcing rib plate, a cylindrical cover, an iron sealing plate, a placing ring, a guide octagonal hole, a connecting coil spring, an iron rod, a jack and a magnet block. The installation structure has the advantages that the whole installation structure is convenient and fast to disassemble and assemble, the embedded installation position is provided for the flat-bulb steel through the top groove, the limiting is provided through the lock head, the lock head is rotatably installed through the rotating shaft, the limiting or the limiting cancellation is realized through the rotation, the elastic mechanism of the rotating shaft is further provided, the limiting is provided for the rotating shaft when the limiting is carried out, the rotation of the lock head is avoided, the non-artificial separation is caused, and the stability of installation and suspension is guaranteed; still set up elasticity hold-down mechanism, elasticity hold-down mechanism provides the clamp force, and the spacing effect of installation is good.
Description
Technical Field
The application relates to a chuck, in particular to a flat bulb steel chuck.
Background
The flat bulb steel is a middle section bar mainly applied to the fields of shipbuilding and bridge building, wherein the flat bulb steel for the ship is an auxiliary middle section bar for shipbuilding. With the rapid development of shipbuilding industry in recent years, the demand of the flat-bulb steel for ships is strong. When a large ship and a regular ship are designed, the main ship body is mostly made of ship flat bulb steel, and the flat bulb steel with the same thickness and material as the connected plates is used as a framework (also called a rib or keel); there is often a bulb steel on the cruise deck.
Scaffold or other structures need to be installed on the flat-bulb steel, the flat-bulb steel is generally clamped through a clamping mechanism, and after clamping, dismounting and mounting are possibly inconvenient, and use can be affected. Accordingly, a bulb-shaped steel chuck is proposed to address the above problems.
Disclosure of Invention
The invention aims to provide a flat-bulb steel chuck with a quick clamp, a quick-release structure and an elastic pressing mechanism.
The technical scheme for realizing the purpose is as follows:
a flat-bulb steel chuck comprises a U-shaped shell, a connecting upright post, flat-bulb steel, a lock, a rotating shaft elastic mechanism and a rotating shaft, wherein the bottom of the U-shaped shell is fixedly connected with the top end of the connecting upright post, top grooves are formed in the front surface of the U-shaped shell and the back surface of the U-shaped shell, the rotating shaft is rotatably connected inside one side of the U-shaped shell, the lock is fixedly connected onto the rotating shaft, the flat-bulb steel is embedded in the top grooves, and the bottom of one side of the lock is in close contact with the flat-bulb steel; and the front surface of the U-shaped shell and the back surface of the U-shaped shell are both provided with a rotating shaft elastic mechanism.
Furthermore, reinforcing rib plates are fixedly connected to the connecting positions of the top ends of the connecting upright columns and the bottom of the U-shaped shell, and the number of the reinforcing rib plates is two.
Furthermore, an elastic pressing mechanism is arranged on the inner wall of the bottom of the U-shaped shell and comprises a pressing plate and two pressing spiral springs, one end of each pressing spiral spring is fixedly connected with the inner wall of the bottom of the U-shaped shell, the other end of each pressing spiral spring is fixedly connected with the bottom of the pressing plate, the tops of the pressing plates are in close contact with the bottoms of the flat-bulb steels, and the number of the pressing spiral springs is two.
Furthermore, the elastic pressing mechanism further comprises two guide straight rods and two limiting blocks, the top ends of the guide straight rods are fixedly connected with the bottoms of the pressing plates, the bottom ends of the guide straight rods are connected with the limiting blocks, and the guide straight rods penetrate through guide holes formed in the bottoms of the U-shaped shells.
Furthermore, the bottom end of the guide straight rod is in threaded connection with the limiting block, an external thread is formed in the cylindrical surface of the bottom end of the guide straight rod, and an internal thread hole is formed in the middle of the limiting block.
Furthermore, the lock head is of an L-shaped block structure, and one side of the lock head is fixedly connected with a connecting fin.
Further, pivot elastic mechanism includes that cylinder cover, iron system seal board, guide ring, connection coil spring and iron set, the outer fixed surface of cylinder cover and U type shell is connected, iron system seal board with the fixed gomphosis of one end of cylinder cover is connected, guide ring fixed connection is in the inside of cylinder cover, eight arris holes of direction have been seted up on the intermediate position of guide ring, eight arris hole clearance fit of direction is connected with the iron set, the iron set passes through connect coil spring with cylinder cover elastic connection, the end of iron set is connected with the jack gomphosis of seting up at the pivot tip.
Further, pivot elastic mechanism still including placing ring and magnet piece, place ring and one side fixed connection of iron system sealing plate, the inside gomphosis of placing the ring is placed the magnet piece.
Further, the connecting spiral spring is sleeved on the surface of the iron rod, one end of the connecting spiral spring is fixedly connected with the inner wall of the cylinder cover, and the other end of the connecting spiral spring is fixedly connected with the surface of the iron rod.
Further, the cross section of the iron rod and the cross section of the jack are both octagonal structures.
The invention has the beneficial effects that: the installation of scaffold frame is applied to whole flat-bulb steel chuck, the connection stand through the bottom provides the connection for the scaffold frame, can hang on the flat-bulb steel through the flat-bulb steel chuck, holistic tearing open, it is comparatively convenient to adorn, provide the mounted position of embedding for the flat-bulb steel through the overhead tank, provide spacingly through tapered end 5, wherein the tapered end realizes rotating the installation through the pivot, through rotating, realize spacingly or cancel spacingly, further have pivot elastic mechanism, when spacing, provide spacingly for the pivot, avoid the tapered end to rotate, and non-artificial separation appears, the stability that the installation hung has been ensured.
Wherein pivot elastic mechanism provides spacingly for the iron set through connecting coil spring, and the iron set is inserted and can be provided spacingly in the jack, when needing to relieve spacingly, only needs to put into the magnet piece and places the ring, adsorbs the iron set through magnetic force, extracts from the jack, during the installation, take out the magnet piece can, holistic easy operation, convenient to use.
The whole flat-bulb steel chuck is further provided with an elastic pressing mechanism, when the flat-bulb steel chuck is hung on the flat-bulb steel, the elastic pressing mechanism is in a compression state, the elastic pressing mechanism provides clamping force for the flat-bulb steel chuck, the flat-bulb steel can be clamped by matching with the lock head, and the installation limiting effect is good.
Drawings
FIG. 1 is a schematic overall structure diagram of an embodiment of the present application;
FIG. 2 is a schematic view of an internal structure of a U-shaped housing according to an embodiment of the present application;
FIG. 3 is a schematic diagram illustrating an internal structure of a rotating shaft elastic mechanism according to an embodiment of the present application;
FIG. 4 is a schematic view of an embodiment of the present application showing an internal structure of a resilient mechanism of a rotary shaft after a magnet block is inserted therein;
FIG. 5 is a schematic cross-sectional view of a rotating shaft and an iron rod according to an embodiment of the present application;
fig. 6 is a schematic structural view of a guiding straight rod and a limiting block according to an embodiment of the present application.
In the figure: 1. u type shell, 2, connection stand, 3, flat-bulb steel, 4, top groove, 5, tapered end, 6, pivot elastic mechanism, 7, connection fin, 8, clamp plate, 9, compression coil spring, 10, direction straight-bar, 11, guiding hole, 12, stopper, 13, pivot, 14, deep floor, 15, drum cover, 16, iron sealing plate, 17, place the ring, 18, guide ring, 19, direction eight arris holes, 20, connection coil spring, 21, iron set, 22, jack, 23, magnet piece.
Detailed Description
The invention will be further explained with reference to the drawings.
Referring to fig. 1-6, a flat-bulb steel chuck comprises a U-shaped shell 1, a connecting upright 2, a lock head 5, a rotating shaft elastic mechanism 6 and a rotating shaft 13, wherein the bottom of the U-shaped shell 1 is fixedly connected with the top end of the connecting upright 2, both the front surface of the U-shaped shell 1 and the back surface of the U-shaped shell 1 are provided with top grooves 4, the top grooves 4 are used for embedding flat-bulb steel 3, an installation position is provided, the rotating shaft 13 is rotatably connected inside one side of the U-shaped shell 1, the lock head 5 is fixedly connected on the rotating shaft 13, flat-bulb steel 3 is embedded in the top grooves 4, the bottom of one side of the lock head 5 is in close contact with the flat-bulb steel 3, the lock head 5 is matched with the action of a pressing plate 8 and a pressing spiral spring 9 to realize the clamping and clamping of the flat-bulb steel 3, and the direction of the clamping force acts;
the front of U type shell 1 with the back of U type shell 1 all is provided with pivot elastic mechanism 6, and pivot elastic mechanism 6 provides spacingly for pivot 13, when magnet piece 23 carries out magnetic force and adsorbs, can cancel spacingly.
The connecting part of the top end of the connecting upright post 2 and the bottom of the U-shaped shell 1 is fixedly connected with two reinforcing rib plates 14, the number of the reinforcing rib plates 14 is two, the connecting effect is improved through the reinforcing rib plates 14, and the connecting strength is improved; an elastic pressing mechanism is arranged on the inner wall of the bottom of the U-shaped shell 1, the pressing mechanism comprises a pressing plate 8 and a pressing spiral spring 9, one end of the compression coil spring 9 is fixedly connected with the inner wall of the bottom of the U-shaped shell 1, the other end of the compression coil spring 9 is fixedly connected with the bottom of the pressure plate 8, the top of the pressure plate 8 is tightly contacted with the bottom of the flat-bulb steel 3, after the installation, the pressing spiral spring 9 is in a compressed state, the pressing spiral spring 9 has elasticity, the bottom of the flat bulb steel 3 is pressed tightly by the pressure plate 8, while the top of the flat bulb steel 3 is blocked by the lock head 5, thereby realizing the installation, the whole flat-bulb steel chuck is hung on the flat-bulb steel 3, the installation structure is provided, the installation is completed, the number of the compression helical springs 9 is two, the compression can be provided for the flat-bulb steel 3, and the clamping force is provided, so that the connection effect is effectively improved; the elastic pressing mechanism further comprises a guide straight rod 10 and a limiting block 12, the number of the guide straight rod 10 and the number of the limiting block 12 are two, the top end of the guide straight rod 10 is fixedly connected with the bottom of the pressing plate 8, the bottom end of the guide straight rod 10 is connected with the limiting block 12, the guide straight rod 10 penetrates through a guide hole 11 formed in the bottom of the U-shaped shell 1 to play a role in guiding and limiting, and the pressing plate 8 is prevented from moving in the horizontal direction; the bottom end of the guide straight rod 10 is in threaded connection with the limiting block 12, an external thread is arranged on the cylindrical surface of the bottom end of the guide straight rod 10, an internal thread hole is formed in the middle of the limiting block 12, threaded connection and installation between the guide straight rod 10 and the limiting block 12 are achieved, separation can be achieved due to threaded connection and installation, the limiting block 12 provides a limiting effect for the guide straight rod 10, and separation between the guide straight rod 10 and the guide hole 11 is avoided; the lock head 5 is of an L-shaped block structure, one side of the lock head 5 is fixedly connected with the connecting fin 7, the lock head 5 provides limiting blocking for the flat-bulb steel to realize connection, the connecting fin 7 facilitates rotation of the lock head 5 and provides a holding position, so that manual operation is facilitated, and the whole use is convenient; the rotating shaft elastic mechanism 6 comprises a cylindrical cover 15, an iron sealing plate 16, a guide ring 18, a connecting spiral spring 20 and an iron rod 21, the cylindrical cover 15 is fixedly connected with the outer surface of the U-shaped shell 1, the iron sealing plate 16 is fixedly embedded and connected with one end of the cylindrical cover 15, the guide ring 18 is fixedly connected inside the cylindrical cover 15, a guide eight-edge hole 19 is formed in the middle position of the guide ring 18, the guide eight-edge hole 19 is in clearance fit connection with the iron rod 21, the iron rod 21 is elastically connected with the cylindrical cover 15 through the connecting spiral spring 20, the tail end of the iron rod 21 is embedded and connected with a jack 22 formed in the end of the rotating shaft 13 to limit the rotating shaft 13, namely, the iron rod 21 is inserted into the jack 22 to realize limiting installation, and is adsorbed through a magnet block 23 after the limiting installation is cancelled, so that the separation of the iron rod 21 and the rotating shaft 13 can be realized, therefore, the limitation is cancelled, and the rotating shaft 13 can rotate after the limitation is cancelled; the rotating shaft elastic mechanism 6 further comprises a placing ring 17 and a magnet block 23, the placing ring 17 is fixedly connected with one side of the iron sealing plate 16, the magnet block 23 is embedded in the placing ring 17 and used for magnetically adsorbing the iron rod 21, so that the iron rod 21 is pulled out of the jack 22, and the limit is cancelled; the connecting spiral spring 20 is sleeved on the surface of the iron rod 21, one end of the connecting spiral spring 20 is fixedly connected with the inner wall of the cylindrical cover 15, and the other end of the connecting spiral spring 20 is fixedly connected with the surface of the iron rod 21, so that the elastic connection of the iron rod 21 is realized; the cross-section of iron set 21 and the cross-section of jack 22 are octagon structure, and carry out the gomphosis between, realize spacing, through the design of octagon, after iron set 21 rotates 45, iron set 21 still can align with jack 22.
The using method comprises the following steps: before suspension, a magnet block 23 is placed in a placing ring 17, magnetic force of the magnet block 23 penetrates through an iron sealing plate 16 to provide adsorption for one end of an iron rod 21, the iron rod 21 is pulled out of a jack 22, meanwhile, a connecting spiral spring 20 is compressed under force to accumulate force, the limit of a rotating shaft 13 is cancelled, a flat-bulb steel chuck is clamped on a flat-bulb steel 3, the flat-bulb steel 3 is embedded through a top groove 4, meanwhile, when the flat-bulb steel 3 is embedded into the top groove 4, a pressing plate 8 is pressed to compress and compress the spiral spring 9, a lock head 5 is rotated, the lock head 5 rotates 45 degrees, the flat-bulb steel chuck is clamped by the lock head 5 and the pressing plate 8, the magnet block 23 is taken down, the iron rod 21 is driven through the elastic force of the connecting spiral spring 20, the iron rod 21 is reinserted into the jack 22, and the rotating shaft 13 is limited;
when needing to dismantle, put into placing ring 17 again with magnet piece 23, the magnetic force of magnet piece 23 sees through iron sealing plate 16 and provides absorption for iron set 21 one end, and iron set 21 is pulled out from jack 22, has cancelled the spacing of pivot 13, and reverse rotation tapered end 545, tapered end 5 stops the blockking of flat bulb steel 3, accomplishes and demolishs.
The installation of scaffold frame is applied to whole flat-bulb steel chuck in this application, connect for the scaffold frame provides the connection through the connecting column 2 of bottom, can hang on flat-bulb steel 3 through the flat-bulb steel chuck, holistic tearing open, it is comparatively convenient to adorn, provide the mounted position of embedding for flat-bulb steel 3 through overhead tank 4, provide spacingly through tapered end 5, wherein tapered end 5 realizes rotating the installation through pivot 13, through rotating, realize spacingly or cancel spacingly, pivot elastic mechanism 6 has further, when spacing, provide spacingly for pivot 13, avoid tapered end 5 to rotate, and the artificial separation of non-appears, the stability that the installation hung has been ensured.
Wherein pivot elastic mechanism 6 provides spacingly for iron set 21 through connecting coil spring 20, and iron set 21 inserts and can provide spacingly in jack 22, when needing to relieve spacingly, only needs to put into magnet piece 23 and places ring 17, adsorbs iron set 21 through magnetic force, extracts from jack 22, during the installation, with magnet piece 23 take out can, holistic easy operation, convenient to use.
Whole flat-bulb steel chuck has still set up elastic pressing mechanism, and when the flat-bulb steel chuck hung on flat-bulb steel 3, elastic pressing mechanism was in compression state, and elastic pressing mechanism provides the clamp force for the flat-bulb steel chuck, and cooperation tapered end 5 can carry out the clamp of flat-bulb steel 3 tightly, and the spacing effect of installation is better.
The above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and therefore all equivalent technical solutions should also fall within the scope of the present invention, and should be defined by the claims.
Claims (10)
1. The utility model provides a flat-bulb steel chuck which characterized in that: the connecting structure comprises a U-shaped shell (1), a connecting upright post (2), a lock head (5), a rotating shaft elastic mechanism (6) and a rotating shaft (13), wherein the bottom of the U-shaped shell (1) is fixedly connected with the top end of the connecting upright post (2), both the front surface of the U-shaped shell (1) and the back surface of the U-shaped shell (1) are provided with top grooves (4), one side of the U-shaped shell (1) is internally and rotatably connected with the rotating shaft (13), the lock head (5) is fixedly connected onto the rotating shaft (13), flat-bulb steel (3) is embedded in the top grooves (4), and the bottom of one side of the lock head (5) is in close contact with the flat-bulb steel (3); and the front surface of the U-shaped shell (1) and the back surface of the U-shaped shell (1) are both provided with a rotating shaft elastic mechanism (6).
2. The bulb-to-flat steel collet of claim 1, wherein: the connecting structure is characterized in that reinforcing rib plates (14) are fixedly connected to the connecting position of the top end of the connecting upright column (2) and the bottom of the U-shaped shell (1), and the number of the reinforcing rib plates (14) is two.
3. The bulb-to-flat steel collet of claim 1, wherein: be provided with elasticity hold-down mechanism on the bottom inner wall of U type shell (1), hold-down mechanism includes clamp plate (8) and compresses tightly coil spring (9), the one end that compresses tightly coil spring (9) with the bottom inner wall fixed connection of U type shell (1), the other end that compresses tightly coil spring (9) with the bottom fixed connection of clamp plate (8), the top of clamp plate (8) and the bottom in close contact with of flat bulb steel (3), the figure that compresses tightly coil spring (9) is two.
4. The bulb-to-flat steel collet of claim 3, wherein: the elastic pressing mechanism further comprises a guide straight rod (10) and a limiting block (12), the number of the guide straight rod (10) and the number of the limiting block (12) are two, the top end of the guide straight rod (10) is fixedly connected with the bottom of the pressing plate (8), the bottom end of the guide straight rod (10) is connected with the limiting block (12), and the guide straight rod (10) penetrates through a guide hole (11) formed in the bottom of the U-shaped shell (1).
5. The bulb-to-flat steel collet of claim 4, wherein: the bottom end of the guide straight rod (10) is in threaded connection with the limiting block (12), an external thread is arranged on the cylindrical surface of the bottom end of the guide straight rod (10), and an internal thread hole is formed in the middle of the limiting block (12).
6. The bulb-to-flat steel collet of claim 1, wherein: the lock head (5) is of an L-shaped block structure, and one side of the lock head (5) is fixedly connected with a connecting fin (7).
7. The bulb-to-flat steel collet of claim 1, wherein: pivot elastic mechanism (6) seal board (16), guide ring (18), connection coil spring (20) and iron set (21) including cylinder cover (15), iron system, cylinder cover (15) are connected with the external fixed surface of U type shell (1), iron system seal board (16) with the fixed gomphosis of one end of cylinder cover (15) is connected, guide ring (18) fixed connection be in the inside of cylinder cover (15), eight arris holes of direction (19) have been seted up on the intermediate position of guide ring (18), eight holes of direction (19) clearance fit are connected with iron set (21), iron set (21) pass through connect coil spring (20) with cylinder cover (15) elastic connection, the end and the jack (22) gomphosis of seting up at pivot (13) tip of iron set (21) are connected.
8. The bulb-to-flat steel collet of claim 1, wherein: the rotating shaft elastic mechanism (6) further comprises a placing ring (17) and a magnet block (23), the placing ring (17) is fixedly connected with one side of the iron sealing plate (16), and the magnet block (23) is placed in the embedded part of the placing ring (17).
9. The bulb-to-flat steel collet of claim 7, wherein: the connecting spiral spring (20) is sleeved on the surface of the iron rod (21), one end of the connecting spiral spring (20) is fixedly connected with the inner wall of the cylindrical cover (15), and the other end of the connecting spiral spring (20) is fixedly connected with the surface of the iron rod (21).
10. The bulb-to-flat steel collet of claim 7, wherein: the cross section of the iron rod (21) and the cross section of the insertion hole (22) are both in an octagonal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011172231.2A CN112388527A (en) | 2020-10-28 | 2020-10-28 | Flat-bulb steel chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011172231.2A CN112388527A (en) | 2020-10-28 | 2020-10-28 | Flat-bulb steel chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112388527A true CN112388527A (en) | 2021-02-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011172231.2A Pending CN112388527A (en) | 2020-10-28 | 2020-10-28 | Flat-bulb steel chuck |
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| Country | Link |
|---|---|
| CN (1) | CN112388527A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140001197U (en) * | 2012-08-17 | 2014-02-27 | 현대중공업 주식회사 | Apparatus for supporting steel plate used in building ship |
| CN109713466A (en) * | 2018-12-19 | 2019-05-03 | 徐州海伦哲特种车辆有限公司 | A kind of copper bar fast fixture |
| CN208867048U (en) * | 2018-10-15 | 2019-05-17 | 苏州久协精工制造有限公司 | A kind of adjustable machining collet |
| CN111288073A (en) * | 2018-12-07 | 2020-06-16 | 宏碁股份有限公司 | Rotating shaft structure and electronic device applying same |
| CN111332430A (en) * | 2020-04-01 | 2020-06-26 | 上海奋为船舶技术有限公司 | Fixing device for lower hanging scaffold |
| CN211219333U (en) * | 2019-04-15 | 2020-08-11 | 天津新港船舶重工有限责任公司 | Ship T-shaped section assembling pressure lever device |
-
2020
- 2020-10-28 CN CN202011172231.2A patent/CN112388527A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140001197U (en) * | 2012-08-17 | 2014-02-27 | 현대중공업 주식회사 | Apparatus for supporting steel plate used in building ship |
| CN208867048U (en) * | 2018-10-15 | 2019-05-17 | 苏州久协精工制造有限公司 | A kind of adjustable machining collet |
| CN111288073A (en) * | 2018-12-07 | 2020-06-16 | 宏碁股份有限公司 | Rotating shaft structure and electronic device applying same |
| CN109713466A (en) * | 2018-12-19 | 2019-05-03 | 徐州海伦哲特种车辆有限公司 | A kind of copper bar fast fixture |
| CN211219333U (en) * | 2019-04-15 | 2020-08-11 | 天津新港船舶重工有限责任公司 | Ship T-shaped section assembling pressure lever device |
| CN111332430A (en) * | 2020-04-01 | 2020-06-26 | 上海奋为船舶技术有限公司 | Fixing device for lower hanging scaffold |
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Application publication date: 20210223 |