CN110905310A - Locking device for movable door - Google Patents
Locking device for movable door Download PDFInfo
- Publication number
- CN110905310A CN110905310A CN201911246602.4A CN201911246602A CN110905310A CN 110905310 A CN110905310 A CN 110905310A CN 201911246602 A CN201911246602 A CN 201911246602A CN 110905310 A CN110905310 A CN 110905310A
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- Prior art keywords
- shaped
- latch
- handle
- cam
- assembly
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B83/00—Vehicle locks specially adapted for particular types of wing or vehicle
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
- E05B85/20—Bolts or detents
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- Lock And Its Accessories (AREA)
Abstract
The invention provides a movable door locking device which is used for locking a vehicle body movable door of a large and medium excavator and comprises a locking mechanism, an annular lock pin matched with the locking mechanism and used for locking the locking mechanism, a pull rod mechanism driving the locking mechanism to move and a pull rod connecting the locking mechanism and the pull rod mechanism, wherein the locking mechanism is arranged in the middle of the movable door, and the pull rod mechanism is arranged on the lower side of the movable door. The movable door locking device provided by the invention can reduce the installation height of the pull rod mechanism and is convenient for a user to open the door.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of engineering machinery, in particular to a movable door locking device.
[ background of the invention ]
Excavators, also known as excavators, are earth moving machines that excavate material above or below a load bearing surface with a bucket and load it into a transport vehicle or unload it to a stockyard. The materials excavated by the excavator mainly comprise soil, coal, silt, soil subjected to pre-loosening and rocks. In view of the development of construction machines in recent years, the development of excavators is relatively fast, and the excavator has become one of the most important construction machines in construction.
In the related technology, two sides of an upper vehicle body of the excavator are provided with vertical covering part door plates, wherein one end of a movable door is provided with a hinge, the other end of the movable door is provided with a lock catch, and the lock catch is arranged at the middle position of the height direction of the movable door; therefore, the lock catch can only be arranged at the lower position of the movable door, so that the movable door is not uniformly stressed up and down when the lock catch collides with the lock pin during closing the door, and the movable door deforms after being opened and closed repeatedly due to the large area and poor rigidity of the movable door, and even is difficult to close the door in serious cases.
Therefore, there is a need to provide a new locking device for a movable door to solve the above problems.
[ summary of the invention ]
The invention aims to overcome the technical problems and provide a movable door locking device which is convenient to unlock and is not easy to deform.
In order to achieve the above purpose, the present invention provides a movable door locking device for locking a vehicle body movable door of a large and medium excavator, the movable door locking device comprising a latch mechanism, an annular lock pin arranged in cooperation with the latch mechanism for locking the latch mechanism, a pull rod mechanism for driving the latch mechanism to move, and a pull rod for connecting the latch mechanism and the pull rod mechanism, wherein the latch mechanism is arranged in the middle of the movable door, and the pull rod mechanism is arranged at the lower side of the movable door.
Preferably, the pull rod mechanism is arranged right below the locking mechanism.
Preferably, the locking mechanism comprises a locking seat, a U-shaped locking assembly arranged on the locking seat and a cam assembly arranged below the U-shaped locking assembly, the locking seat comprises two side plates arranged at intervals in parallel, and the U-shaped locking assembly and the cam assembly are arranged between the two side plates.
Preferably, the U-shaped locking assembly includes a first pin shaft, two ends of which are respectively connected to the two side plates, a U-shaped locking catch mounted on the first pin shaft, and a first torsion spring clamped between any one of the side plates and the U-shaped locking catch, the U-shaped locking catch is disposed in cooperation with the annular locking pin, the U-shaped locking catch rotates around the first pin shaft, the first torsion spring is sleeved on the first pin shaft, and two ends of the first torsion spring are respectively fixedly connected to the U-shaped locking catch and the side plates.
Preferably, the U-shaped lock catch is in a half-ring shape with a U-shaped structure, and comprises a first end, a second end and a connecting part, wherein the second end is arranged at a relative interval of the first end, the connecting part is connected with the first end and the second end, gaps are formed at intervals of the first end and the second end, and the connecting part is installed on the first pin shaft through a matching hole.
Preferably, the cam subassembly including both ends respectively with two second round pin axle that the curb plate is connected, install in the cam of second round pin axle and clamp are located arbitrary the curb plate with second torsional spring between the cam, the cam winds second round pin axle is rotatory, the excircle circumference of cam is kept away from centre of a circle direction and is extended and be formed with the arch, the arch set up in the breach, be used for the restriction the rotation of U-shaped hasp, second torsional spring cover is located the second is sold epaxially, just second torsional spring both ends respectively with the cam reaches curb plate fixed connection.
Preferably, the pull rod mechanism comprises a lock box, a lock tongue, a handle assembly and a transmission assembly, and the lock tongue, the handle assembly and the transmission assembly are all installed in the lock box.
Preferably, the handle assembly comprises a handle shaft fixed to the lock box, a top collision block mounted on the handle shaft, a handle fixedly connected with the top collision block, and a handle limit block fixedly connected with the handle shaft, the middle position of the top collision block is mounted on the handle shaft, the top collision block rotates around the handle shaft, the handle is fixed at one end, facing the outer side of the lock box, of the top collision block, and the lock tongue is arranged below the handle limit block and used for limiting the handle limit block to rotate.
Preferably, the transmission assembly set up in handle components one side, the transmission assembly include with the top piece corresponds the L shape sled board that sets up, install in the rotation axis and the one end of L shape sled board are fixed in the L shape sled board other end is fixed in the third torsional spring of rotation axis, L shape sled board winds the rotation axis is rotatory, just pull rod one end is connected L shape perk board, the other end is connected the cam.
Preferably, the L-shaped prying plate comprises an impact end arranged in the vertical direction and a stretching end arranged in the horizontal direction, one end of the pull rod is connected with the stretching end, the other end of the pull rod is connected with the cam, and the top impact block correspondingly impacts the impact end.
Compared with the prior art, the movable door locking device provided by the invention is simple in structure and comprises a locking mechanism, an annular lock pin mechanism, a pull rod mechanism and a pull rod, wherein the locking mechanism is arranged in the middle of the movable door, the pull rod mechanism is arranged on the lower side of the movable door, and the locking mechanism and the pull rod mechanism are connected through the pull rod for transmission, so that the installation height of the pull rod mechanism can be reduced, a user can conveniently open the door, meanwhile, the locking mechanism is arranged in the middle of the movable door, the upper side and the lower side of the locking mechanism are uniformly stressed when the door is closed, and the movable door is not easy to deform.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a reference view showing a state in which a locking apparatus for a sliding door according to the present invention is used;
FIG. 2 is a schematic view showing the construction of the locking apparatus for the sliding door when the sliding door is opened;
FIG. 3 is a schematic view of the construction of the locking device for the sliding door when the sliding door is closed;
FIG. 4 is a schematic structural view of the latch mechanism shown in FIG. 2;
FIG. 5 is a schematic structural view of the drawbar mechanism shown in FIG. 2;
FIG. 6 is a cross-sectional view of the drawbar mechanism shown in FIG. 5;
FIG. 7 is a schematic view of the position relationship between the U-shaped lock and the cam when the movable door is opened;
FIG. 8 is a schematic view of the position relationship between the U-shaped latch and the cam when the movable door is closed.
[ detailed description ] embodiments
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 8, the present invention provides a sliding door locking device 100, wherein the sliding door locking device 100 is installed on a sliding door 200. Specifically, in the present embodiment, the movable door locking device 100 is mounted on a movable door of a body of a medium-and-large excavator, and in other embodiments, the movable door locking device 100 may be mounted on a movable door of another construction machine, which is not limited by the present invention.
The movable door locking device 100 comprises a locking mechanism 1, an annular lock pin 2 matched with the locking mechanism 1 and used for locking the locking mechanism 1, a pull rod mechanism 3 driving the locking mechanism to move 1 and a pull rod 4 connecting the locking mechanism 1 and the pull rod mechanism 3, wherein the locking mechanism 1 is arranged in the middle of the movable door 200, and the pull rod mechanism 3 is arranged on the lower side 3 of the movable door. Preferably, the pull rod mechanism 3 is arranged right below the latch mechanism 1.
The locking mechanism 1 is arranged in the middle of the height direction of the movable door 200, and when the door is closed, the upper side and the lower side of the locking mechanism 1 of the movable door 200 are stressed uniformly and are not easy to deform.
The locking mechanism 1 comprises a locking seat 11, a U-shaped locking assembly 12 arranged on the locking seat 6 and a cam assembly 13 arranged below the U-shaped locking assembly 12.
The latch holder 11 includes two side plates 111 disposed in parallel at intervals, and the U-shaped latch assembly 12 and the cam assembly 13 are disposed between the two side plates 111.
The U-shaped latch assembly 12 includes a first pin 121 having two ends respectively connected to the two side plates 111, a U-shaped latch 122 installed on the first pin 121, and a first torsion spring 123 sandwiched between any one of the side plates 111 and the U-shaped latch 122, and the two ends of the first torsion spring 123 are respectively fixedly connected to the U-shaped latch 122 and the side plates 111. Preferably, the first torsion spring 123 is also sleeved on the first pin 121, so that displacement of the first torsion spring 123 in other directions can be limited, and the use is safe and reliable.
The U-shaped lock 122 rotates around the first pin 121 under the action of an external force, the first torsion spring 123 is correspondingly screwed, and the elastic potential energy is increased; after the external force is lost, the first torsion spring 123 returns to the original position under the action of elastic potential energy, and drives the U-shaped lock 122 to rotate.
The U-shaped latch 122 is a half-ring of a U-shaped structure, and includes a first end 1221, a second end 1222 spaced opposite to the first end, and a connecting portion 1223 connecting the first end 1221 and the second end 1222, the first end 1221 and the second end 1222 are spaced to form a gap 1224, and the connecting portion 1223 is mounted on the first pin 121 through a mating hole.
The cam assembly 13 includes a second pin shaft 131, a cam 132 and a second torsion spring 133, wherein two ends of the second pin shaft 131 are respectively connected with the two side plates 111, the cam 132 is installed on the second pin shaft 131, the second torsion spring 133 is clamped between any one of the side plates 111 and the cam 132, and two ends of the second torsion spring 133 are respectively fixedly connected with the cam 132 and the side plates 111. Preferably, the second torsion spring 133 is also sleeved on the second pin 131, so that the displacement of the second torsion spring 133 in other directions can be limited, and the use is safe and reliable.
The cam 132 rotates around the second pin 131 under the action of external force, the second torsion spring 133 is correspondingly screwed, and the elastic potential energy is increased; after the external force is lost, the second torsion spring 133 returns to its original position under the action of elastic potential energy, and drives the cam 132 to rotate.
The cam 132 is in a semi-circular shape, and a protrusion 1321 is formed on the outer circumference of the cam in a direction away from the center of the circle, and the protrusion 1321 is disposed in the gap 1224 and is used for limiting the rotation of the U-shaped lock 122.
The pull rod mechanism 3 comprises a lock box 31, a lock tongue 32, a handle assembly 33 and a transmission assembly 34. The bolt 32, the handle assembly 33 and the transmission assembly 34 are all installed in the lock box 31.
The lock box 31 is disposed on the lower side of the movable door 200, specifically, the lock box 31 is disposed under the latch assembly 1, and the lock box 31 is exposed outside the movable door 200, so that a user can insert a key conveniently. The lock box 31 includes an outer side 311 and an inner side 312, wherein the outer side 311 faces the outside of the movable door 200, i.e. the outer side 311 faces the user, the inner side 312 faces the inside of the movable door 200,
the locking tongue 32 is adapted to be inserted into a key and rotated as the key is turned. The locking tongue 32 is provided with a key hole, and the key hole is exposed at the outer side 311 of the lock box 31.
The handle assembly 33 includes a handle shaft 331 fixed to the lock case 31, a striking block 332 mounted to the handle shaft 331, a handle 333 fixedly connected to the striking block 332, and a handle stopper 334 fixedly connected to the handle shaft 331. The striking block 332 is mounted on the handle shaft 331 at a middle position, the striking block 332 is rotatable around the handle shaft 331, and the handle 333 is fixed to an end of the striking block 332 facing the outside 311 of the lock case 31.
Inserting a key into a key hole of the bolt 32, rotating the bolt 32 by the key, and avoiding the limit block 334 after the bolt 32 rotates; the handle 333 is pulled towards the outer side 311 of the lock box 31, and the jacking block 332 is driven to rotate anticlockwise around the handle shaft 331 and jack against the transmission assembly 34.
Handle assembly 33 still includes extension spring 335, extension spring 335 one end is fixed in the top hits the piece 332 and keeps away from the one end of handle 333, the other end is fixed in lock box 31 is last, the top hits the piece 332 anticlockwise rotation and corresponds the extension spring 335, loosens behind the handle 333, extension spring 335 return drives the top hits piece 332, handle 333 and handle stopper 334 return.
The transmission assembly 34 is disposed on one side of the handle assembly 33, the transmission assembly 34 includes an L-shaped prying plate 341 disposed corresponding to the abutting block 332, a rotating shaft 342 mounted on the L-shaped prying plate 341, and a third torsion spring 343 having one end fixed to the L-shaped prying plate 341 and the other end fixed to the rotating shaft 343, the L-shaped prying plate 341 rotates around the rotating shaft 342, the torsion spring 343 is correspondingly screwed, and elastic potential energy is increased; after the external force action is lost, the third torsion spring 343 returns under the action of elastic potential energy to drive the L-shaped prying plate 341 to rotate and return.
The L-shaped prying plate 341 includes an impact end 3411 disposed in a vertical direction and a stretching end 3412 disposed in a horizontal direction, the abutting block 332 impacts the impact end 3411 to drive the L-shaped prying plate 341 to rotate counterclockwise at the same time, and the stretching end 3412 descends in the vertical direction.
The pull rod 4 is connected to the stretching end 3412 at one end and the cam 132 at the other end, the stretching end 3412 descends to drive the cam 132 to rotate counterclockwise, the protrusion 1321 of the cam 132 presses the first end 1221 of the U-shaped latch 122 to drive the U-shaped latch 122 to rotate clockwise, the first torsion spring 123 is correspondingly tightened until the cam 132 disengages from the U-shaped latch 122, the first torsion spring 123 returns to the original position to drive the U-shaped latch 122 to rotate counterclockwise until the notch 1224 of the U-shaped latch 122 faces the circular lock pin 2, and further pulling the handle 333 pulls the movable door 200 to move integrally, and the U-shaped latch 122 disengages from the circular lock pin 2, thereby opening the movable door.
When the door needs to be closed, the movable door 200 is pushed by a hand, the U-shaped lock catch 122 approaches to the annular lock pin 2, after the movable door 200 hits the door frame, the U-shaped lock catch 122 is forced to rotate around the first pin 121 until the notch 1224 faces downward, the annular lock pin 2 is located between the first end 1221 and the second end 1222, and the U-shaped lock catch 122 is correspondingly sleeved on the annular lock pin 2. The cam 132 rotates clockwise under the action of the second torsion spring 133 until the protrusion 1321 is located in the notch 1224, and the protrusion 1321 abuts against the first end 1221 correspondingly, at this time, a key is inserted into the keyhole of the lock tongue 32, the lock tongue 32 is rotated, the lock tongue 32 can rotate to the position below the handle limit block 334 to limit the rotation of the handle limit block 334, at this time, the top collision block 332 cannot rotate around the handle shaft 331, the movable door 200 is completely locked, and even if the handle 333 is pulled, the movable door 200 cannot be opened.
Compared with the prior art, the movable door locking device provided by the invention is simple in structure and comprises a locking mechanism, an annular lock pin mechanism, a pull rod mechanism and a pull rod, wherein the locking mechanism is arranged in the middle of the movable door, the pull rod mechanism is arranged on the lower side of the movable door, and the locking mechanism and the pull rod mechanism are connected through the pull rod for transmission, so that the installation height of the pull rod mechanism can be reduced, a user can conveniently open the door, meanwhile, the locking mechanism is arranged in the middle of the movable door, the upper side and the lower side of the locking mechanism are uniformly stressed when the door is closed, and the movable door is not easy to deform.
While the foregoing is directed to embodiments of the present invention, it will be understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a dodge gate locking device for lock the automobile body dodge gate of large and medium-sized excavator, its characterized in that, dodge gate locking device include latch mechanism, with latch mechanism cooperation set up and be used for locking latch mechanism's annular lockpin, drive latch mechanism motion's pull rod mechanism and connection latch mechanism with pull rod mechanism's pull rod, wherein, latch mechanism sets up in the intermediate position of dodge gate, pull rod mechanism set up in the dodge gate downside.
2. The swing door locking apparatus according to claim 1, wherein the lever mechanism is disposed directly below the latch mechanism.
3. The sliding door locking apparatus as claimed in claim 2, wherein said latch mechanism comprises a latch base, a U-shaped latch assembly mounted to said latch base, and a cam assembly disposed below said U-shaped latch assembly, said latch base comprising two side plates disposed in parallel and spaced apart relationship, said U-shaped latch assembly and said cam assembly being disposed between said two side plates.
4. The device as claimed in claim 3, wherein the U-shaped latch assembly comprises a first pin having two ends connected to the two side plates, a U-shaped latch mounted on the first pin, and a first torsion spring sandwiched between any one of the side plates and the U-shaped latch, the U-shaped latch is disposed in cooperation with the annular lock pin, the U-shaped latch rotates around the first pin, the first torsion spring is sleeved on the first pin, and two ends of the first torsion spring are fixedly connected to the U-shaped latch and the side plates, respectively.
5. The sliding door locking apparatus as claimed in claim 4, wherein the U-shaped locking device is a half-ring of a U-shaped structure, and comprises a first end, a second end spaced apart from the first end, and a connecting portion connecting the first end and the second end, the first end and the second end being spaced apart to form a gap, and the connecting portion is mounted on the first pin through a fitting hole.
6. The movable door locking device according to claim 5, wherein the cam assembly comprises a second pin shaft, a cam and a second torsion spring, wherein two ends of the second pin shaft are respectively connected with the two side plates, the cam is mounted on the second pin shaft, the second torsion spring is clamped between any one of the side plates and the cam, the cam rotates around the second pin shaft, a protrusion is formed in the outer circumference of the cam in a direction away from the center of a circle, the protrusion is arranged in the notch and used for limiting the rotation of the U-shaped lock catch, the second torsion spring is sleeved on the second pin shaft, and two ends of the second torsion spring are respectively fixedly connected with the cam and the side plates.
7. The sliding door locking apparatus of claim 6 wherein said handle mechanism comprises a lock case, a latch, a handle assembly and a drive assembly, said latch, handle assembly and drive assembly all mounted within said lock case.
8. The sliding door locking apparatus as claimed in claim 7, wherein the handle assembly comprises a handle shaft fixed to the lock case, a striking block mounted on the handle shaft, a handle fixedly connected to the striking block, and a handle stopper fixedly connected to the handle shaft, the striking block is mounted on the handle shaft at a middle position thereof, the striking block rotates around the handle shaft, the handle is fixed to an end of the striking block facing an outer side of the lock case, and the latch is disposed below the handle stopper and is configured to limit the rotation of the handle stopper.
9. The sliding door locking apparatus as claimed in claim 8, wherein the transmission assembly is disposed at one side of the handle assembly, the transmission assembly includes an L-shaped levering plate disposed corresponding to the bumping block, a rotation shaft mounted to the L-shaped levering plate, and a third torsion spring having one end fixed to the L-shaped levering plate and the other end fixed to the rotation shaft, the L-shaped levering plate rotates around the rotation shaft, and one end of the pull rod is connected to the L-shaped levering plate and the other end is connected to the cam.
10. The device as claimed in claim 9, wherein the L-shaped prying plate includes an impact end disposed along a vertical direction and a tension end disposed along a horizontal direction, one end of the pull rod is connected to the tension end, the other end of the pull rod is connected to the cam, and the top impact block correspondingly impacts the impact end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911246602.4A CN110905310A (en) | 2019-12-07 | 2019-12-07 | Locking device for movable door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911246602.4A CN110905310A (en) | 2019-12-07 | 2019-12-07 | Locking device for movable door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110905310A true CN110905310A (en) | 2020-03-24 |
Family
ID=69823647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911246602.4A Pending CN110905310A (en) | 2019-12-07 | 2019-12-07 | Locking device for movable door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110905310A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112192265A (en) * | 2020-08-16 | 2021-01-08 | 王玲 | Automatic clamping cutting machine for stainless steel section |
| CN113027256A (en) * | 2021-05-12 | 2021-06-25 | 大厂回族自治县合世璧机械制造有限公司 | Novel car as a house cabin lock |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101315009A (en) * | 2007-05-30 | 2008-12-03 | 沃尔沃建造设备控股（瑞典）有限公司 | Door opening device for heavy construction equipment |
| CN201276906Y (en) * | 2008-07-25 | 2009-07-22 | 四川成都成工工程机械股份有限公司 | Vehicle door lock mechanism |
| CN203050280U (en) * | 2012-12-18 | 2013-07-10 | 温浩然 | Door lock convenient to open and close |
| US20150308162A1 (en) * | 2012-12-12 | 2015-10-29 | Volvo Construction Equipment Ab | Door locking device and construction machine including same |
| US20180058121A1 (en) * | 2015-03-13 | 2018-03-01 | Panasonic Intellectual Property Management Co., Ltd. | Travel assistance device and sliding door device provided with same |
-
2019
- 2019-12-07 CN CN201911246602.4A patent/CN110905310A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101315009A (en) * | 2007-05-30 | 2008-12-03 | 沃尔沃建造设备控股（瑞典）有限公司 | Door opening device for heavy construction equipment |
| CN201276906Y (en) * | 2008-07-25 | 2009-07-22 | 四川成都成工工程机械股份有限公司 | Vehicle door lock mechanism |
| US20150308162A1 (en) * | 2012-12-12 | 2015-10-29 | Volvo Construction Equipment Ab | Door locking device and construction machine including same |
| CN203050280U (en) * | 2012-12-18 | 2013-07-10 | 温浩然 | Door lock convenient to open and close |
| US20180058121A1 (en) * | 2015-03-13 | 2018-03-01 | Panasonic Intellectual Property Management Co., Ltd. | Travel assistance device and sliding door device provided with same |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112192265A (en) * | 2020-08-16 | 2021-01-08 | 王玲 | Automatic clamping cutting machine for stainless steel section |
| CN112192265B (en) * | 2020-08-16 | 2022-06-14 | 佛山市著铭金属制品有限公司 | Automatic clamping cutting machine for stainless steel section |
| CN113027256A (en) * | 2021-05-12 | 2021-06-25 | 大厂回族自治县合世璧机械制造有限公司 | Novel car as a house cabin lock |
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Application publication date: 20200324 |
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