CN216940541U - Special steel bottle pneumatic valve assembly quality of fire extinguisher - Google Patents
Special steel bottle pneumatic valve assembly quality of fire extinguisher Download PDFInfo
- Publication number
- CN216940541U CN216940541U CN202220839361.5U CN202220839361U CN216940541U CN 216940541 U CN216940541 U CN 216940541U CN 202220839361 U CN202220839361 U CN 202220839361U CN 216940541 U CN216940541 U CN 216940541U
- Authority
- CN
- China
- Prior art keywords
- fire extinguisher
- assembly
- steel cylinder
- mounting
- main body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model discloses a special steel cylinder air valve assembling device for a fire extinguisher, which comprises an assembling table and an air valve main body, wherein an installing frame is installed on the top surface of the assembling table, an installing chute is formed in the installing frame, installing slide blocks are embedded in the installing chute in a clamping manner, an installing plate is fixedly connected between the two installing slide blocks, a lifting cylinder is installed in the center of the bottom surface of the installing plate, the movable end of the lifting cylinder is connected with a lifting frame, a servo motor is installed in the lifting frame, the output end of the servo motor is connected with a rotating shaft, a rotating plate is installed at the bottom end of the rotating shaft, one end of a coupling rod is fixedly connected to the edge of the rotating plate, and the other end of the coupling rod is fixedly connected with one end of an assembling wrench. Has the beneficial effects that: the utility model is provided with the lifting frame and the rotating plate, and the assembling operation of the air valve main body is completed by using machinery, so that the labor amount of workers is greatly reduced, the assembling quality is ensured, the assembly line operation is realized, and the assembling efficiency of the special steel cylinder air valve for the fire extinguisher is greatly improved.
Description
Technical Field
The utility model relates to the technical field of fire extinguisher production, in particular to a steel cylinder gas valve assembling device special for a fire extinguisher.
Background
The fire extinguisher is a common portable fire extinguishing tool, chemical articles are placed in the fire extinguisher for saving and extinguishing fire, the fire extinguisher is mostly stored in public places or places where fire may happen, although different types of fire extinguishers have different internal filling components, the main structure of each type of fire extinguisher is mostly assembled by a special steel cylinder and a gas valve group through an assembly mode of threaded connection.
The assembly method of traditional special steel bottle air valve of fire extinguisher adopts the manual work to screw up the assembly on the hickey of steel bottle with the help of mounting tool mostly, such installation assembly method not only can consume workman's a large amount of physical power, and can't ensure assembly quality, and assembly efficiency is comparatively low, in addition, special steel bottle air valve of fire extinguisher is when screwing up the assembly, need the workman to carry out fixed centre gripping to the steel bottle, and artifical manual pressure is held up fixedly comparatively hard, and fixed effect is not good, but add the construction cost and the power consumption that electronic fixture can additionally increase the device, thereby the assembly cost of special steel bottle air valve of fire extinguisher has been increased.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Aiming at the defects of the prior art, the utility model provides the assembling device for the gas valve of the special steel cylinder for the fire extinguisher, which has the advantages that the gas valve of the special steel cylinder for the fire extinguisher can be automatically screwed and assembled on the threaded connector of the steel cylinder, the time and the labor are saved, the assembling quality and the assembling efficiency are ensured, in addition, the fixing and clamping of the steel cylinder can be conveniently and quickly completed by workers on the premise of not increasing an electric clamping mechanism, and the problems in the background technology are further solved.
(II) technical scheme
In order to realize the advantages that the gas valve of the special steel cylinder for the fire extinguisher can be automatically screwed and assembled on the threaded connector of the steel cylinder, the time and the labor are saved, the assembly quality and the assembly efficiency are ensured, and in addition, the fixed clamping of the steel cylinder can be conveniently and quickly completed by workers on the premise of not increasing an electric clamping mechanism, the utility model adopts the following specific technical scheme: the utility model provides a special steel bottle pneumatic valve assembly quality of fire extinguisher, includes assembly table and air valve main part, assembly table top surface fixed mounting has the mounting bracket, and has seted up the installation spout in the mounting bracket to the card has the installation slider, two in the installation spout fixedly connected with mounting panel between the installation slider, and mounting panel bottom surface central authorities install the lift cylinder to lift cylinder expansion end is connected with the crane, install servo motor in the crane, and the servo motor output is connected with the axis of rotation to the rotor plate is installed to the axis of rotation bottom, the marginal fixedly connected with trace one end of rotor plate, and trace other end fixedly connected with assembly spanner one end, connecting thread has been seted up to air valve main part bottom lateral wall, and the meshing is twisted on the connecting thread and is connect there is hexagon nut to the hexagon nut inlay card is in assembly spanner.
Further, the assembly table top is provided with electronic conveying platform, and evenly installs a plurality of fixed slot on the electronic conveying platform to the steel bottle main part has been placed to the inlay card in the fixed slot, steel bottle main part top is installed threaded interface, and threaded interface and connecting thread intermeshing.
Furthermore, a blind groove is formed in one side of the inner wall of the fixing groove, a nut is installed on the side wall of the blind groove, a fastening screw is installed in the nut in a meshed mode, a clamping plate is installed at one end of the fastening screw, a second anti-skid pad is installed on the inner side of the clamping plate, and a first anti-skid pad is fixedly installed on the other side of the inner wall of the fixing groove.
Further, a transverse moving cylinder is installed at the top end of the side face of the installation frame, and the movable end of the transverse moving cylinder is fixedly connected with the side wall of the installation plate.
Further, install control panel on the assembly bench, and control panel and electronic conveying platform, lift cylinder, servo motor and sideslip cylinder electric connection.
Further, the mounting rack is of an inverted L-shaped structure.
Furthermore, the cross sections of the mounting sliding groove and the mounting sliding block are T-shaped.
Furthermore, the cross section of the fixing groove is concave.
(III) advantageous effects
Compared with the prior art, the utility model provides a special steel cylinder gas valve assembling device for a fire extinguisher, which has the following beneficial effects:
(1) when the steel cylinder clamping device is used, a feeding worker firstly clamps the steel cylinder main body in an inner cavity of a fixed groove arranged on an electric conveying table, then a fastening screw which is screwed in a nut arranged on the side wall of a blind groove arranged on one side of the inner cavity of the fixed groove is rotated, and the nut and the fastening screw are mutually meshed, so that the clamping plate connected with one end of the fastening screw moves along with the fastening screw and gradually approaches the side surface of one side of the steel cylinder main body until a second anti-skid pad arranged on the side surface of the clamping plate is abutted against the side wall of the steel cylinder main body, and at the moment, the side wall of the other side of the steel cylinder main body is abutted against a first anti-skid pad arranged on one side of the inner wall of the fixed groove, thereby realizing the quick clamping and fixing of the steel cylinder main body on the premise of not increasing an electric clamping mechanism, effectively preventing the steel cylinder main body from rotating during the assembly of an air valve, and having good fixing and clamping effects, the fire extinguisher mounting method is simple and quick to operate and convenient to use, and after the air valve main body is mounted, a worker can quickly take down the assembled fire extinguisher according to the reverse operation of the steps.
(2) The utility model is provided with a lifting frame and a rotating plate, when in work, the steel cylinder main body which is fixedly clamped moves to the position under an installation frame which is arranged on an assembly table along with a fixed groove under the transmission of an electric transmission table, at the moment, an assembly worker screws an air valve main body which is connected with a hexagon nut on a connecting thread on an assembly spanner, at the moment, the air valve main body is correspondingly aligned with a thread interface arranged on the steel cylinder main body, then the assembly worker synchronously starts a lifting cylinder and a servo motor, the movable end of the lifting cylinder is connected with the lifting frame which is provided with the servo motor, so that the lifting frame and the servo motor can be driven to synchronously descend, meanwhile, the servo motor drives a rotating shaft to rotate, one end of the rotating shaft is connected with the rotating plate, the edge of the rotating plate is connected with the assembly spanner through a linkage rod, so that the rotating plate can drive the assembly spanner to synchronously rotate, at the moment, because the hexagon nut is clamped in the assembly spanner, the assembly wrench can enable the connecting thread of the gas valve main body to be meshed and screwed in the threaded interface on the steel cylinder main body through the hexagon nut, thereby realizing the assembly and installation of the gas valve main body on the steel cylinder main body, after the assembly is finished, the transverse moving starting is started, because the movable end of the transverse moving cylinder is connected with the mounting plate which is installed in the mounting chute arranged on the mounting frame through the mounting slider, the transverse moving cylinder can drive the mounting plate to synchronously transversely move together with the lifting cylinder, the lifting frame, the servo motor, the rotating plate and the assembly wrench, thereby separating the assembly wrench from the hexagon nut, leading the steel cylinder main body with the assembled gas valve main body to continuously advance along with the electric conveying table, then resetting the assembly wrench, realizing the cycle operation as above, realizing the assembly line operation, greatly improving the assembly efficiency of the special steel cylinder gas valve for the fire extinguisher, and using mechanical operation, not only greatly reducing the labor capacity of workers, but also ensuring the assembly quality.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural view of a cylinder gas valve assembly device for fire extinguishers according to an embodiment of the present invention;
FIG. 2 is a side sectional view of a cylinder gas valve assembly specially used for a fire extinguisher according to an embodiment of the present invention;
FIG. 3 is a top view of a fixing groove of a gas valve assembling apparatus of a cylinder dedicated for a fire extinguisher according to an embodiment of the present invention;
FIG. 4 is an enlarged view at A of FIG. 1 according to an embodiment of the present invention;
fig. 5 is a sectional view of a cylinder gas valve assembly device for a fire extinguisher according to an embodiment of the present invention.
In the figure:
1. an assembly table; 2. an electric transfer table; 3. fixing grooves; 4. a steel cylinder body; 5. an air valve main body; 6. a mounting frame; 7. mounting a plate; 8. installing a sliding block; 9. installing a chute; 10. a lifting cylinder; 11. a lifting frame; 12. a servo motor; 13. a rotating plate; 14. a linkage rod; 15. a transverse moving cylinder; 16. a first non-slip mat; 17. a blind groove; 18. a nut; 19. fastening a screw rod; 20. a clamping plate; 21. a second non-slip mat; 22. a rotating shaft; 23. assembling a wrench; 24. connecting threads; 25. a threaded interface; 26. a hexagonal nut.
Detailed Description
For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the utility model, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.
According to the embodiment of the utility model, the utility model provides a special steel cylinder gas valve assembling device for a fire extinguisher.
Referring to the drawings and the detailed description, as shown in fig. 1-5, the assembly apparatus for a steel cylinder gas valve for a fire extinguisher according to the embodiment of the present invention includes an assembly table 1 and a gas valve main body 5, wherein a mounting frame 6 is fixedly installed on a top surface of the assembly table 1, a mounting chute 9 is formed in the mounting frame 6, a mounting slider 8 is embedded in the mounting chute 9, a mounting plate 7 is fixedly connected between the two mounting sliders 8, a lifting cylinder 10 is installed at a center of a bottom surface of the mounting plate 7, a lifting frame 11 is connected to a movable end of the lifting cylinder 10, a servo motor 12 is installed in the lifting frame 11, an output end of the servo motor 12 is connected to a rotating shaft 22, a rotating plate 13 is installed at a bottom end of the rotating shaft 22, an end of a coupling rod 14 is fixedly connected to an edge of the rotating plate 13, and another end of the coupling rod 14 is fixedly connected to an end of an assembly wrench 23, connecting thread 24 has been seted up to 5 bottom lateral walls of air valve main part, and the meshing is twisted on connecting thread 24 and is connect with hexagon nut 26 to hexagon nut 26 inlay card has played the assembly operation that uses machinery to accomplish the special steel cylinder air valve of fire extinguisher in assembly spanner 23, both greatly reduced workman's the amount of labour, has also ensured assembly quality.
In one embodiment, the assembly table 1 is provided with the electronic conveying table 2 above, and evenly installs a plurality of fixed slot 3 on the electronic conveying table 2, and the steel bottle main part 4 has been placed to the inlay card in the fixed slot 3, and hickey 25 is installed on 4 tops of steel bottle main parts, and hickey 25 and connecting thread 24 intermeshing have played and have realized assembly line operation, have improved the effect of the assembly efficiency of the special steel bottle air valve of fire extinguisher greatly.
In one embodiment, blind groove 17 has been seted up to fixed slot 3 inner wall one side, and blind groove 17 lateral wall installs nut 18, and nut 18 inner gearing installs fastening screw 19, grip block 20 is installed to fastening screw 19 one end, and grip block 20 inboard installs the second slipmat 21, fixed slot 3 inner wall opposite side fixed mounting has first slipmat 16, it is fixed to have played the quick centre gripping to steel bottle main part 4, can prevent effectively that steel bottle main part 4 from taking place to rotate when pneumatic valve main part 5 assembles, fixed centre gripping is effectual, easy operation is quick, high durability and convenient use.
In one embodiment, the transverse cylinder 15 is installed at the top end of the side surface of the installation frame 6, and the side wall of the installation plate 7 is fixedly connected with the movable end of the transverse cylinder 15, so that the assembly wrench 23 is separated from the hexagon nut 18, and the steel cylinder body 4 with the assembled gas valve body 5 can continue to advance along with the electric transmission table 2.
In one embodiment, a control panel is mounted on the assembly table 1, and the control panel is electrically connected with the electric conveying table 2, the lifting cylinder 10, the servo motor 12 and the traverse cylinder 15, so as to play a role in controlling the normal operation of the device.
In one embodiment, the mounting frame 6 is an inverted L-shaped structure.
In one embodiment, the mounting runner 9 and the mounting slider 8 are T-shaped in cross-sectional shape.
In one embodiment, the cross-sectional shape of the fixation groove 3 is concave.
The working principle is as follows: the utility model is provided with a fixed groove 3 and a clamping plate 20, when in use, a feeding worker firstly clamps and embeds a steel cylinder main body 4 in an inner cavity of the fixed groove 3 arranged on an electric conveying platform 2, then a fastening screw 19 screwed and arranged in a nut 18 arranged on the side wall of a blind groove 17 arranged on one side of the inner cavity of the fixed groove 3 rotates, because the nut 18 is meshed with the fastening screw 19, the clamping plate 20 connected with one end of the fastening screw 19 moves along with the fastening screw and gradually approaches to the side surface of one side of the steel cylinder main body 4 until a second anti-skid pad 21 arranged on the side surface of the clamping plate 20 is abutted against the side wall of the steel cylinder main body 4, at the moment, the side wall of the other side of the steel cylinder main body 4 is abutted against a first anti-skid pad 16 arranged on one side of the inner wall of the fixed groove 3, thereby realizing the quick clamping and fixing of the steel cylinder main body 4 on the premise of not increasing an electric clamping mechanism, effectively preventing the steel cylinder main body 4 from rotating when an air valve main body 5 is assembled, the fire extinguisher with the assembled fire extinguisher can be quickly taken down by workers according to the reverse operation of the steps after the air valve main body 5 is installed, in addition, the fire extinguisher with the assembled fire extinguisher is provided with the lifting frame 11 and the rotating plate 13, when the fire extinguisher is operated, the steel cylinder main body 4 which is fixedly clamped moves to the position under the installation frame 6 which is installed on the assembly table 1 along with the fixed groove 3 under the transmission of the electric transmission table 2, at the moment, the assembly workers clamp and embed the air valve main body 5 which is screwed with the hexagon nut 26 on the connecting thread 24 on the assembly wrench 23, at the moment, the air valve main body 5 is correspondingly aligned with the thread connector 25 which is installed on the steel cylinder main body 4, then the assembly workers synchronously start the lifting cylinder 10 and the servo motor 12, the movable end of the lifting cylinder 10 is connected with the lifting frame 11 which is provided with the servo motor 12, so the lifting frame 11 and the servo motor 12 can be driven to synchronously descend, meanwhile, the servo motor 12 drives the rotating shaft 22 to rotate, one end of the rotating shaft 22 is connected with the rotating plate 13, the edge of the rotating plate 13 is connected with the assembly wrench 23 through the linkage rod 14, so the rotating plate 13 can drive the assembly wrench 23 to rotate synchronously, at the moment, because the hexagon nut 18 is embedded in the assembly wrench 23 in a clamping way, the assembly wrench 23 can enable the connecting thread 24 of the air valve main body 5 to be meshed and screwed in the threaded interface 25 on the steel cylinder main body 4 through the hexagon nut 18, thereby realizing the assembly and installation of the air valve main body 5 on the steel cylinder main body 4, after the assembly is finished, the transverse moving starting is started, because the movable end of the transverse moving cylinder 15 is connected with the mounting plate 7 which is installed in the installation chute 9 which is arranged on the mounting frame 6 through the installation slider 8, the transverse moving cylinder 15 can drive the mounting plate 7 to move synchronously with the lifting cylinder 10, the lifting frame 11, the servo motor 12, the rotating plate 13 and the assembly wrench 23, thereby will assemble spanner 23 and hexagon nut 18 separation for the steel bottle main part 4 of having assembled gas valve main part 5 can continue to advance along with electronic conveying platform 2, later resets assembly spanner 23 again, can be as above cycle operation realizes assembly line work, has improved the assembly efficiency of the special steel bottle gas valve of fire extinguisher greatly, and owing to use mechanical operation, both greatly reduced workman's the amount of labour, has also ensured assembly quality.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The utility model provides a special steel bottle pneumatic valve assembly quality of fire extinguisher, includes assembly table (1) and air valve main part (5), its characterized in that, assembly table (1) top surface fixed mounting has mounting bracket (6), and has seted up installation spout (9) in mounting bracket (6), and has installed slider (8) in installation spout (9) the inlay card, two fixedly connected with mounting panel (7) between installation slider (8), and mounting panel (7) bottom surface central authorities install lift cylinder (10), and lift cylinder (10) expansion end is connected with crane (11), install servo motor (12) in crane (11), and servo motor (12) output is connected with axis of rotation (22), and rotor plate (13) is installed to axis of rotation (22) bottom, rotor plate (13) edge fixedly connected with trace (14) one end, and the other end of the linkage rod (14) is fixedly connected with one end of an assembly wrench (23), the side wall of the bottom end of the air valve main body (5) is provided with a connecting thread (24), the connecting thread (24) is engaged and screwed with a hexagonal nut (26), and the hexagonal nut (26) is embedded in the assembly wrench (23).
2. The steel cylinder gas valve assembling device special for the fire extinguisher according to claim 1, wherein an electric conveying table (2) is arranged above the assembling table (1), a plurality of fixing grooves (3) are uniformly arranged on the electric conveying table (2), a steel cylinder main body (4) is arranged in the fixing grooves (3) in a clamping and embedding manner, a threaded connector (25) is arranged at the top end of the steel cylinder main body (4), and the threaded connector (25) is meshed with a connecting thread (24).
3. The steel cylinder gas valve assembling device special for the fire extinguisher according to claim 2, wherein a blind groove (17) is formed in one side of the inner wall of the fixing groove (3), a nut (18) is installed on the side wall of the blind groove (17), a fastening screw (19) is installed in the nut (18) in an engaged manner, a clamping plate (20) is installed at one end of the fastening screw (19), a second non-slip mat (21) is installed on the inner side of the clamping plate (20), and a first non-slip mat (16) is fixedly installed on the other side of the inner wall of the fixing groove (3).
4. The steel cylinder gas valve assembling device special for the fire extinguisher as claimed in claim 1, wherein a transverse cylinder (15) is installed at the top end of the side surface of the mounting frame (6), and the side wall of the mounting plate (7) is fixedly connected with the movable end of the transverse cylinder (15).
5. The steel cylinder gas valve assembly device special for the fire extinguisher as claimed in claim 1, characterized in that the assembly table (1) is provided with a control panel, and the control panel is electrically connected with the electric transmission table (2), the lifting cylinder (10), the servo motor (12) and the transverse moving cylinder (15).
6. The cylinder gas valve assembly device special for fire extinguishers as claimed in claim 1, wherein the mounting frame (6) is of an inverted L-shaped structure.
7. The steel cylinder gas valve assembly device special for the fire extinguisher as claimed in claim 1, wherein the cross-sectional shapes of the mounting chute (9) and the mounting slider (8) are T-shaped.
8. The steel cylinder gas valve assembly device special for the fire extinguisher as claimed in claim 2, characterized in that the cross section of the fixing groove (3) is concave.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202220839361.5U CN216940541U (en) | 2022-04-12 | 2022-04-12 | Special steel bottle pneumatic valve assembly quality of fire extinguisher |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202220839361.5U CN216940541U (en) | 2022-04-12 | 2022-04-12 | Special steel bottle pneumatic valve assembly quality of fire extinguisher |
Publications (1)
Publication Number | Publication Date |
---|---|
CN216940541U true CN216940541U (en) | 2022-07-12 |
Family
ID=82301594
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202220839361.5U Active CN216940541U (en) | 2022-04-12 | 2022-04-12 | Special steel bottle pneumatic valve assembly quality of fire extinguisher |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN216940541U (en) |
-
2022
- 2022-04-12 CN CN202220839361.5U patent/CN216940541U/en active Active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN111236865B (en) | Shackle tongs and method capable of realizing automatic screwing-on and unscrewing of sucker rod | |
CN204849060U (en) | Full -automatic urgent device of generating line lift frame and generating line hoisting device | |
CN216940541U (en) | Special steel bottle pneumatic valve assembly quality of fire extinguisher | |
CN218576559U (en) | Adjustable stair mould roll-over table of assembled | |
CN113001458B (en) | Electric bolt screwing tool and method convenient to use | |
CN215145383U (en) | Tapping device for internal thread three-way joint | |
CN214771907U (en) | Equipment turning device for electromechanical installation | |
CN211249296U (en) | Rotatable feeding and discharging pneumatic device | |
CN209902612U (en) | Controllable fixed-torque screwing machine | |
CN212381482U (en) | Clamp for processing circuit board | |
CN219189589U (en) | Piston pin polishing device | |
CN216991559U (en) | Integration firmware device for production of glazed tiles | |
CN218416967U (en) | Building electrical construction safety device | |
CN216829565U (en) | Single-arm tightening equipment | |
CN216380170U (en) | Energy-saving curtain wall capable of reducing installation steps | |
CN218019254U (en) | A high-efficient quick detach frock for pre-buried pore-forming die of prefabricated component | |
CN219113776U (en) | Polishing fixture for machining metal composite plate | |
CN214771648U (en) | Clamping jaw for grabbing automobile part hexagon bolt | |
CN215358057U (en) | Special processing equipment for flange bolts | |
CN214292754U (en) | Stud positioning mechanism | |
CN218137732U (en) | Automobile engine disassembling equipment | |
CN217097570U (en) | Auxiliary device is used in installation of low energy consumption machining center main shaft | |
CN211361498U (en) | Gear drilling fixing device | |
CN212786199U (en) | LED controller mounting structure | |
CN213701305U (en) | Simple automobile engine oil pipe machining device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |