CN209792865U - Automatic lifting mechanism and focusing device - Google Patents
Automatic lifting mechanism and focusing device Download PDFInfo
- Publication number
- CN209792865U CN209792865U CN201920140723.XU CN201920140723U CN209792865U CN 209792865 U CN209792865 U CN 209792865U CN 201920140723 U CN201920140723 U CN 201920140723U CN 209792865 U CN209792865 U CN 209792865U
- Authority
- CN
- China
- Prior art keywords
- seat
- lifting
- screw rod
- fixedly connected
- lifting seat
- 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
Abstract
The utility model provides an automatic lifting mechanism, which comprises a driving mechanism, a fixed seat, a lifting seat and a lead screw, wherein the driving mechanism is fixed on the fixed seat, the lifting seat is arranged on the fixed seat in a sliding way, the lower end of the lifting seat is positioned in the fixed seat, and the upper end of the lifting seat is positioned outside the fixed seat; one end of the screw rod is fixedly connected with an output shaft of the driving mechanism, and the other end of the screw rod is connected with the lower end of the lifting seat; the rotation of the screw rod can drive the lifting seat to move up and down relative to the fixed seat; the utility model provides an automatic lifting mechanism, the up-and-down motion of seat, simple and convenient are turned into with the rotary motion of output shaft to the lead screw during use. The utility model also provides a focusing device, which comprises the automatic lifting mechanism and the laser, wherein the laser is fixed on the lifting seat; the utility model provides a focusing device passes through the position that actuating mechanism adjusted the lift seat to adjust the focus of laser instrument, it is simple and convenient.
Description
Technical Field
The utility model belongs to the technical field of laser beam machining, more specifically say, relate to an automatic elevating system and focusing device.
Background
Along with the industrialization, the positions or focuses of some detection mechanisms, fixed-point assembling mechanisms, adjustable laser marking mechanisms and other mechanisms are required to be changed on an automatic assembly line so as to achieve the purpose of improving the degree of automation.
In laser beam machining technical field, the mechanism that needs lift adjustment such as the lift of some lasers, the lift of last unloading platform need use elevating system to realize the lift of mechanisms such as laser, last unloading platform, however the elevating system on the market mostly still uses manual regulation to go up and down to be the main, and lift adjustment is inconvenient, adjusts inefficiency, especially in some laser beam machining equipment that the structure is very compact, and the space is narrow and small, and manual adjustment is very inconvenient.
At present, in the practical use of laser marking, the types of lasers are various, the specifications of main beams of the lasers are different, users need to frequently replace the lasers when marking various products, most of the users use lifting mechanisms which are large in size and need to be manually adjusted, however, when marking different products, the focal positions of the lasers need to be frequently adjusted, and nowadays when the degree of automation is higher and higher, the marking efficiency is undoubtedly reduced, and the marking cost is increased; and sometimes some auxiliary devices need to be manufactured to meet the production requirement, and the added auxiliary devices also can improve the operation difficulty and increase the production cost.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an automatic elevating system to solve the elevating system who exists among the prior art and adjust inconvenient technical problem.
In order to achieve the above object, the utility model adopts the following technical scheme: the automatic lifting mechanism comprises a driving mechanism, a fixed seat, a lifting seat and a screw rod, wherein the driving mechanism is fixed on the fixed seat, the lifting seat is arranged on the fixed seat in a sliding manner, the lower end of the lifting seat is positioned in the fixed seat, and the upper end of the lifting seat is positioned outside the fixed seat; one end of the screw rod is fixedly connected with an output shaft of the driving mechanism, and the other end of the screw rod is connected with the lower end of the lifting seat;
The screw rod rotates to drive the lifting seat to move up and down relative to the fixed seat.
Furthermore, the screw rod comprises a screw rod and a moving pair, the moving pair is in threaded connection with the screw rod, a screw rod through hole is formed in the lifting seat, and the output shaft is fixedly connected with the screw rod;
the movable pair comprises an extending part and a fixing part, the extending part is fixedly connected with the fixing part, the extending part penetrates through the screw rod via hole, the fixing part is abutted to the bottom of the lifting seat, and the fixing part is fixedly connected with the lifting seat.
Furthermore, a plurality of slide rails are arranged on the fixing seat along the axial direction of the screw rod, a plurality of slide blocks are fixedly arranged on the lifting seat, part of the slide blocks are arranged in the slide rails, and the rest part of the slide blocks extend out of the fixing seat.
Further, be equipped with at least one position sensor on the fixing base, be equipped with the response piece on the lift seat, position sensor can detect the position of response piece.
the lifting seat is fixedly connected with the driving mechanism, a through hole is formed in the limiting middle plate, and the lead screw penetrates through the through hole.
Furthermore, a limiting block is arranged on the limiting middle plate and can be abutted to the lifting seat.
Furthermore, the lifting seat comprises an upper plate, a lower plate and at least one supporting piece, a lifting hole is formed in the fixing seat, one end of the supporting piece is fixedly connected with the lower plate, the other end of the supporting piece penetrates through the lifting hole and is fixedly connected with the upper plate, and the screw rod is connected with the lower plate.
Furthermore, the lifting seat further comprises connecting plates respectively arranged on two sides of the lower plate, and the connecting plates are movably connected with the fixed seat.
Furthermore, the fixing seat further comprises a reinforcing rib, one end of the reinforcing rib is fixedly connected with the limiting middle plate, and the other end of the reinforcing rib is fixedly connected with the inner bottom of the fixing seat.
The utility model provides an automatic elevating system's beneficial effect lies in: compared with the prior art, the automatic lifting mechanism of the utility model starts the driving mechanism when in use, the output shaft of the driving mechanism rotates to drive the lead screw which is fixedly connected with the output shaft to rotate, the lead screw converts the rotary motion of the output shaft into the linear motion of the lifting seat, and drives the lifting seat to move up and down, thereby realizing the height adjustment of the lifting seat, being simple and convenient and having high adjusting efficiency;
One end of the lifting seat is arranged in the fixed seat, and the other end of the lifting seat is arranged outside the fixed seat, so that on one hand, the fixed seat can play a role in protecting the transmission motion process of the screw rod, and the screw rod and the driving mechanism are prevented from being damaged; on the other hand, the fixing base can play the effect of supporting lead screw or lift seat, avoids lift seat or lead screw to appear unexpected and topple over.
A second object of the present invention is to provide a focusing apparatus to solve the inconvenient technical problem of laser focusing existing in the prior art.
In order to achieve the above object, the utility model adopts the following technical scheme: the focusing device comprises a laser and an automatic lifting mechanism according to any one of the technical schemes, wherein the laser is fixed on the lifting seat.
the utility model provides a focusing device's beneficial effect lies in: compared with the prior art, the utility model discloses focusing device is when using, and the lift seat is for fixing base up-and-down motion under actuating mechanism's drive, and the laser instrument of fixing on it of lift seat drive reciprocates to change the position of laser instrument focus, reach the effect of the focus of the laser beam that the regulation laser instrument sent, convenient operation, simple, it is efficient to adjust.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced 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 inventive labor.
Fig. 1 is a schematic structural view of an automatic lifting mechanism provided in an embodiment of the present invention;
fig. 2 is an enlarged view of a point a in fig. 1.
Wherein, in the figures, the respective reference numerals:
1. A lifting seat; 11. an upper plate; 12. a lower plate; 13. a support member; 14. a connecting plate;
2. A fixed seat; 21. a slide rail; 22. a lifting hole;
3. A screw rod; 31. a screw; 32. a sliding pair;
4. A drive mechanism; 5. a slider; 6. a sensor; 7. an induction sheet; 8. a limiting block; 9. reinforcing ribs;
10. A mounting seat;
101. a middle limiting plate; 1011. and a through hole.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
it will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
referring to fig. 1, the automatic lifting mechanism of the present invention will now be described. The automatic lifting mechanism comprises a driving mechanism 4, a fixed seat 2, a lifting seat 1 and a screw rod 3, wherein the driving mechanism 4 is fixed on the fixed seat 2, the lifting seat 1 is arranged on the fixed seat 2 in a sliding manner, the lower end of the lifting seat 1 is positioned in the fixed seat 2, and the upper end of the lifting seat 1 is positioned outside the fixed seat 2; one end of the screw rod 3 is fixedly connected with an output shaft of the driving mechanism 4, and the other end of the screw rod is movably connected with the lower end of the lifting seat 1;
the screw rod 3 rotates to drive the lifting seat 1 to move up and down relative to the fixed seat 2.
Compared with the prior art, the automatic lifting mechanism provided by the utility model has the advantages that when the automatic lifting mechanism is used, the driving mechanism 4 is started, the output shaft of the driving mechanism 4 rotates to drive the lead screw 3 fixedly connected with the output shaft to rotate, the lead screw 3 converts the rotary motion of the output shaft into the linear motion of the lifting seat 1 and drives the lifting seat 1 to move up and down, so that the height of the lifting seat 1 can be adjusted, and the automatic lifting mechanism is simple and convenient and has high adjusting efficiency;
One end of the lifting seat 1 is arranged in the fixed seat 2, and the other end of the lifting seat is arranged outside the fixed seat 2, so that on one hand, the fixed seat 2 can play a role in protecting the transmission motion process of the screw rod 3, and the screw rod 3 and the driving mechanism 4 are prevented from being damaged; on the other hand, fixing base 2 can play the effect of supporting lead screw 3 or lift seat 1, avoids lift seat 1 or lead screw 3 to appear unexpected and empty.
Alternatively, the drive mechanism 4 is a rotary cylinder or a motor.
Specifically, the device further comprises a coupler, wherein the coupler is used for driving and connecting an output shaft of the driving mechanism 4 with the screw rod 3, so that the torque of the output shaft can be transmitted to the screw rod 3 through the coupler.
Specifically, the fixing base 2 includes a bottom plate, a top plate, and a plurality of side plates, and the side plates are respectively fixedly connected with the bottom plate and the top plate.
Further, please refer to fig. 1, as a specific embodiment of the automatic lifting mechanism provided by the present invention, the screw rod 3 includes a screw rod 31 and a moving pair 32, the moving pair 32 is in threaded connection with the screw rod 31, the lifting seat 1 is provided with a screw rod via hole, the output shaft is fixedly connected with the screw rod 31, the moving pair 32 can convert the rotation motion of the screw rod 31 into the linear motion of the lifting seat 1 along the axial direction of the screw rod 31, so that the lifting seat 1 can move up and down relative to the fixing seat 2;
The sliding pair 32 comprises an extending part and a fixing part, the extending part is fixedly connected with the fixing part, the extending part penetrates through the screw rod via hole and the fixing part is abutted to the bottom of the lifting seat 1, the fixing part is fixedly connected with the lifting seat 1, the lifting seat 1 can be driven to move up and down by utilizing the gravity of the lifting seat 1 and the supporting effect of the fixing part, self-locking is realized, and the lifting seat 1 is effectively prevented from sliding downwards.
Specifically, the screw rod 3 is a trapezoidal screw rod 3, and the moving pair 32 is a screw rod pair.
Further, please refer to fig. 2, as a specific embodiment of the automatic lifting mechanism provided by the present invention, a plurality of slide rails 21 are disposed on the fixing base 2 along the axial direction of the screw rod 3, a plurality of slide blocks 5 are fixedly disposed on the lifting base 1, a part of the slide blocks 5 are disposed in the slide rails 21, and the rest of the slide blocks 5 extend out of the fixing base 2, so as to limit the lifting base 1, limit the rotation of the lifting base 1, and limit the lifting base 1 to move up and down within a certain range; the arrangement of the plurality of slide rails 21 can ensure that the stress of the lifting seat 1 is uniformly distributed on the two sides of the lifting seat, so that the movement of the lifting seat 1 is more stable; the slide block 5 extending out of the fixed seat 2 can limit the lifting seat 1 in multiple directions, so that the lifting seat 1 can slide more stably.
preferably, two slide rails 21 are provided on each of the left and right sides of the elevating base 1.
specifically, still include the cab apron, cross one end and lift seat 1 fixed connection of cab apron, the other end passes the side of fixing base 2 and with stretch out the slider 5 fixed connection outside fixing base 2.
Specifically, the sliding block 5 extending out of the fixed seat 2 is a trapezoidal sliding block.
Further, please refer to fig. 1 and fig. 2, as the utility model provides an automatic lifting mechanism's a specific implementation, be equipped with at least one position sensor 6 on the fixing base 2, be equipped with response piece 7 on the lift seat 1, position sensor 6 can detect the position of response piece 7, conveniently carries on spacingly to lift seat 1 to adjust to required height with lift seat 1, avoid lift seat 1 gliding.
Preferably, the left and right sides of fixing base 2 respectively sets up two sensors 6, and the both ends of slide rail 21 are located respectively to two sensors 6 of every side, and response piece 7 is located and is stretched out on the slider 5 outside fixing base 2, conveniently sets up sensor 6 and response piece 7, and the sensor 6 of being convenient for discerns the position of response piece 7.
Further, please refer to fig. 1, as the utility model provides an automatic elevating system's a specific implementation way still includes spacing medium plate 101, spacing medium plate 101 and 2 fixed connection of fixing base, spacing medium plate 101 is located between lift seat 1 and the actuating mechanism 4, be equipped with through-hole 1011 on the spacing medium plate 101, lead screw 3 passes through-hole 1011, spacing medium plate 101 can play spacing effect to lead screw 3, improve the stability of lead screw 3, can also play spacing effect to lift seat 1, avoid the position of lift seat 1 too low or the accident appears.
Specifically, please refer to fig. 1, further comprising an installation seat 10, wherein the driving mechanism 4 is fixed in the installation seat 10, and the installation seat 10 is fixed with the middle limiting plate 101 and the bottom plate.
Further, please refer to fig. 1, as the utility model provides an automatic lifting mechanism's a specific implementation manner is equipped with stopper 8 on the spacing medium plate 101, stopper 8 can with 1 butt of lift seat, conveniently as required, set up stopper 8's height, carry on spacingly to lift seat 1, has alleviateed the weight of fixing base 2.
Further, please refer to fig. 1, as a specific embodiment of the automatic lifting mechanism provided by the present invention, the lifting seat 1 includes an upper plate 11, a lower plate 12 and at least one supporting member 13, the fixing seat 2 is provided with a lifting hole 22, one end of the supporting member 13 is fixedly connected to the lower plate 12, the other end passes through the lifting hole 22 and is fixedly connected to the upper plate 11, the lead screw 3 is connected to the lower plate 12, so as to limit the supporting member 13, and prevent the supporting member 13 from shaking to drive the upper plate 11 to shake; the upper plate 11 can conveniently fix the laser or conveniently feed and unload, and the lower plate 12 can conveniently and stably connect with the screw rod 3.
Specifically, transition plates are fixed to both sides of the lower plate 12.
Further, please refer to fig. 1, as the utility model provides an automatic lifting mechanism's a specific implementation way, lift seat 1 is still including locating the connecting plate 14 of the both sides of hypoplastron 12 respectively, and connecting plate 14 and 2 swing joint of fixing base conveniently carry on spacingly to hypoplastron 12 to can get up hypoplastron 12 and 2 swing joint of fixing base, improved the stability of hypoplastron 12, thereby improved lift seat 1 up-and-down motion's stability.
Specifically, the transition plate is fixed to the connection plate 14.
specifically, the lower plate 12 is fixed to the connecting plate 14 by bolts or screws, and the transition plate is fixed to the connecting plate 14 by bolts or screws.
specifically, the sliding block 5 is fixedly connected with the transition plate, so that the sliding block 5 is conveniently fixed on the connecting plate 14.
further, please refer to fig. 1, as the utility model provides an automatic lifting mechanism's a specific implementation way, still include strengthening rib 9, the one end and the spacing medium plate 101 fixed connection of strengthening rib 9, the other end and the interior bottom fixed connection of fixing base 2 can play the effect of supporting spacing medium plate 101, improve the stability and the intensity of fixing base 2.
It is right now that the utility model provides a focusing device explains. The focusing device comprises a laser and an automatic lifting mechanism according to any one of the embodiments, and the laser is fixed on the lifting seat 1
the utility model provides an automatic lifting mechanism compares with prior art, and when using, lift seat 1 is for fixing base 2 up-and-down motion under actuating mechanism 4's drive, and lift seat 1 drives the laser instrument of fixing above that and reciprocates to change the position of laser instrument focus, reach the effect of the focus of the laser beam that adjusts the laser instrument and send, convenient operation, simple, it is efficient to adjust.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. Automatic elevating system, its characterized in that: the lifting mechanism is fixed on the fixed seat, the lifting seat is arranged on the fixed seat in a sliding manner, the lower end of the lifting seat is positioned in the fixed seat, and the upper end of the lifting seat is positioned outside the fixed seat; one end of the screw rod is fixedly connected with an output shaft of the driving mechanism, and the other end of the screw rod is connected with the lower end of the lifting seat;
The screw rod rotates to drive the lifting seat to move up and down relative to the fixed seat.
2. The automatic lifting mechanism according to claim 1, characterized in that: the screw rod comprises a screw rod and a moving pair, the moving pair is in threaded connection with the screw rod, a screw rod through hole is formed in the lifting seat, and the output shaft is fixedly connected with the screw rod;
The movable pair comprises an extending part and a fixing part, the extending part is fixedly connected with the fixing part, the extending part penetrates through the screw rod via hole, the fixing part is abutted to the bottom of the lifting seat, and the fixing part is fixedly connected with the lifting seat.
3. The automatic lifting mechanism according to claim 1, characterized in that: the fixing seat is provided with a plurality of slide rails along the axial direction of the screw rod, the lifting seat is fixedly provided with a plurality of slide blocks, part of the slide blocks are arranged in the slide rails, and the rest part of the slide blocks extend out of the fixing seat.
4. The automatic lifting mechanism according to claim 1, characterized in that: the lifting seat is provided with a lifting piece, the fixed seat is provided with at least one position sensor, the lifting seat is provided with a sensing piece, and the position sensor can detect the position of the sensing piece.
5. the automatic lifting mechanism according to claim 1, characterized in that: the lifting mechanism is characterized by further comprising a limiting middle plate, the limiting middle plate is fixedly connected with the fixing seat, the limiting middle plate is located between the lifting seat and the driving mechanism, a through hole is formed in the limiting middle plate, and the lead screw penetrates through the through hole.
6. The automatic lifting mechanism according to claim 5, characterized in that: the limiting middle plate is provided with a limiting block which can be abutted against the lifting seat.
7. The automatic lifting mechanism according to claim 1, characterized in that: the lifting seat comprises an upper plate, a lower plate and at least one supporting piece, a lifting hole is formed in the fixing seat, one end of the supporting piece is fixedly connected with the lower plate, the other end of the supporting piece penetrates through the lifting hole and is fixedly connected with the upper plate, and the screw rod is connected with the lower plate.
8. The automatic lifting mechanism of claim 7, wherein: the lifting seat further comprises connecting plates respectively arranged on two sides of the lower plate, and the connecting plates are movably connected with the fixed seat.
9. The automatic lifting mechanism according to claim 5, characterized in that: the limiting middle plate is fixedly connected with the inner bottom of the fixing seat, and one end of the reinforcing rib is fixedly connected with the limiting middle plate, while the other end is fixedly connected with the inner bottom of the fixing seat.
10. Focusing device, including the laser instrument, its characterized in that: the automatic lifting mechanism of any one of claims 1-9, further comprising the laser secured to the lift base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920140723.XU CN209792865U (en) | 2019-01-24 | 2019-01-24 | Automatic lifting mechanism and focusing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920140723.XU CN209792865U (en) | 2019-01-24 | 2019-01-24 | Automatic lifting mechanism and focusing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209792865U true CN209792865U (en) | 2019-12-17 |
Family
ID=68821168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920140723.XU Active CN209792865U (en) | 2019-01-24 | 2019-01-24 | Automatic lifting mechanism and focusing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209792865U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110961805A (en) * | 2019-12-19 | 2020-04-07 | 安徽隆源成型科技有限公司 | Adjustable positioning device for laser processing center |
| CN113369641A (en) * | 2021-05-18 | 2021-09-10 | 宁波博视达焊接机器人有限公司 | Visual sensor for tracking welding seam |
-
2019
- 2019-01-24 CN CN201920140723.XU patent/CN209792865U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110961805A (en) * | 2019-12-19 | 2020-04-07 | 安徽隆源成型科技有限公司 | Adjustable positioning device for laser processing center |
| CN113369641A (en) * | 2021-05-18 | 2021-09-10 | 宁波博视达焊接机器人有限公司 | Visual sensor for tracking welding seam |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209792865U (en) | Automatic lifting mechanism and focusing device | |
| CN219598655U (en) | Automatic assembling device for speed reducer and rotor | |
| CN112037637A (en) | Pure electric vehicles motor is real standard platform directional positioning mechanism | |
| CN215893559U (en) | Rotational position detection device | |
| CN207630512U (en) | A kind of change dimension D elta type 3D printers | |
| CN211001915U (en) | Lifting adjusting support suitable for fixed horizontal tail dock | |
| CN209850725U (en) | Radar support mounting aligning device | |
| CN106938832B (en) | Six-degree-of-freedom lifting platform | |
| CN215238782U (en) | Lifting mechanism for automatic welding device | |
| CN212503807U (en) | Inclined plane type lifting electric sliding table | |
| CN208443341U (en) | A kind of positioning module | |
| CN218908867U (en) | Limiting device for instrument panel lifting tool | |
| CN211123472U (en) | Automatic adjusting device for lifting of objective lens | |
| CN219974683U (en) | Centering device of wind driven generator | |
| CN217469836U (en) | Photovoltaic device with adjustable angle | |
| CN213289166U (en) | Lifting mechanism of welding gun | |
| CN213808488U (en) | T-shaped seat type ball screw gantry module | |
| CN218931952U (en) | Supporting device for moving glass annealing furnace | |
| CN219596508U (en) | Stirring angle adjusting device | |
| CN216220643U (en) | Liftable draft holder that architectural design used | |
| CN219720717U (en) | Linear motion device of detector | |
| CN210366823U (en) | Elevating platform device based on lead screw | |
| CN219860386U (en) | Elevator with extension table top | |
| CN217532856U (en) | Anti-bounce rail clamping device | |
| CN215749054U (en) | Rotary valve accessory adjusting platform |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |