CN210209345U - Double-end lock screw device - Google Patents
Double-end lock screw device Download PDFInfo
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- CN210209345U CN210209345U CN201920783092.3U CN201920783092U CN210209345U CN 210209345 U CN210209345 U CN 210209345U CN 201920783092 U CN201920783092 U CN 201920783092U CN 210209345 U CN210209345 U CN 210209345U
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- 239000000463 material Substances 0.000 claims abstract description 80
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 10
- 239000012634 fragment Substances 0.000 description 7
- 230000005484 gravity Effects 0.000 description 4
- 241000237983 Trochidae Species 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
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Abstract
The utility model discloses a double-head screw locking device, which comprises a first conveying mechanism, a first separating mechanism and a first locking mechanism fixed above the first separating mechanism, wherein the first separating mechanism divides the screws coming out of the first conveying mechanism one by one, and the first locking mechanism is used for locking the screws coming out of the first separating mechanism on a required product; the rear end trough is fixed on the base plate, and the front end of the rear end trough is connected with the front end trough; the screw driver is characterized by comprising a rear end material cover fixed on the upper portion of the rear end material groove and a front end material cover fixed on the upper portion of the front end material groove, wherein center holes with two closed ends are formed in the rear end material cover and the front end material cover, air flow of the small holes is used for pushing screws to move forwards, communicated U-shaped grooves are formed in the rear end material groove and the front end material groove, the openings of the U-shaped grooves face upwards, and recessed steps are arranged at the openings of the U-shaped grooves. The utility model provides a pair of double-end lock screw device, the screw is carried gently, does not block the position.
Description
Technical Field
The utility model relates to an assembly line technical field, specifically speaking relates to a double-end lock screw device.
Background
Along with the increasing human cost, more and more automatic screw locking equipment has replaced present manual screw locking operation at present. At present, when the length-diameter ratio of a screw is smaller than 1.5, the screw can turn over in an air pipe, most of automatic screw locking machines cannot be suitable for air blowing type feeding, and the continuity of feeding is influenced. At present, most screws with the length-diameter ratio smaller than 1.5 adopt a single suction mode to feed, and due to the fact that the screws need to come and go to take materials ceaselessly, most of time is wasted in the process of coming and going to take materials, and the efficiency of locking the screws cannot be improved. At present, most of electric screwdriver used by the automatic screw locking machine is a common direct current electric screwdriver, only the screw can be locked at a fixed speed and a fixed torque, the screw locking process cannot be well controlled, and the quality of the locked screw cannot be guaranteed. When screws with two specifications need to be locked on a product, two stations of two devices are needed to complete the operation, and the cost and the required operation space are greatly increased.
Patent No. 201811475611.6 discloses an automatic screw conveyor and automatic equipment thereof, pay-off through the pay-off track of slope, cause piling up of screw easily to the screw trades planar in-process at the commentaries on classics angle, causes the card material easily, and intraductal screw too much causes the problem that the screw dropped easily.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a double-end lock screw device, the screw is carried gently, does not block the position.
The utility model discloses a double-end lock screw device adopts technical scheme is:
a double-head screw locking device comprises a first conveying mechanism, a first separating mechanism and a first locking mechanism fixed above the first separating mechanism, wherein the first separating mechanism divides screws from the first conveying mechanism into separate screws, and the first locking mechanism is used for locking the screws from the first separating mechanism on a required product; the first conveying mechanism comprises a substrate; the rear end trough is fixed on the base plate, and the front end of the rear end trough is connected with the front end trough; the rear end material cover is fixed on the upper portion of the rear end material groove, the front end material cover is fixed on the upper portion of the front end material groove, two end-closed center holes are formed in the rear end material cover and the front end material cover, small holes are uniformly distributed in the center holes, air flow of the small holes is used for pushing screws to move forwards, communicated U-shaped grooves are formed in the rear end material groove and the front end material groove, the opening of each U-shaped groove faces upwards, the opening of each U-shaped groove is provided with an inwards concave step, the gap between the rear end material groove and the rear end material cover can be adjusted, and the gap between the front end material groove and the front.
Preferably, the first separating mechanism comprises a fixed plate fixed on the base plate, a linear guide rail and a lateral cylinder, a sliding plate is sleeved on the linear guide rail and is connected with a cylinder shaft of the lateral cylinder, the fixed plate and the sliding plate are arranged oppositely, and material separating elastic pieces which are mutually matched are fixed on the fixed plate and the sliding plate, each material separating elastic piece is provided with a tension spring which enables the material separating elastic piece to be opened downwards and closed upwards, a U-shaped groove is formed in at least one end elastic piece, and the end face of the fixed plate is flush with the end face of the rear-end trough.
As a preferred scheme, a front end sensor is arranged at the end part of the front end trough, a rear end sensor is arranged on the rear end trough, a discharging sensor is fixed at a position right opposite to the distributing elastic piece, and the small hole is 45 degrees to the direction of the U-shaped trough.
As preferred scheme, the length of rear end silo is twice of front end silo, and the middle part in rear end silo is fixed in to the rear end sensor.
According to the preferable scheme, the first locking mechanism comprises a connecting plate fixed on the base plate, a lifting cylinder is fixed on the connecting plate and connected with a motor fixing plate, the motor fixing plate is connected with an electric screwdriver fixing block, a servo motor is fixed on the motor fixing plate, an electric screwdriver sleeve positioned above the material distributing elastic sheet is arranged on the electric screwdriver fixing block, and a diaphragm coupling for connection is arranged between the electric screwdriver sleeve and the servo motor.
As a preferred scheme, the electric screwdriver fixing block is provided with an air nozzle for vacuumizing the electric screwdriver sleeve and a negative pressure meter for detecting the negative pressure of the electric screwdriver sleeve.
Preferably, a locking guide rail and a cylinder fixing plate are fixed on the connecting plate, the lifting cylinder is fixed on the cylinder fixing plate, the locking guide rail is sleeved with the locking fixing plate, and the locking fixing plate is connected with a cylinder shaft of the lifting cylinder.
According to the preferable scheme, a locking cylinder is fixed on the locking fixing plate, an intermediate plate is fixed on the connecting plate, a motor guide rail is arranged on the intermediate plate, the motor fixing plate is sleeved on the motor guide rail, the lower portion of a cylinder shaft of the locking cylinder can support the motor fixing plate, a first buffer mechanism is arranged between the locking cylinder and the motor fixing plate, the motor fixing plate is provided with an electric screwdriver guide rail, the electric screwdriver fixing block is sleeved on the electric screwdriver guide rail, and a second buffer mechanism is arranged between the electric screwdriver fixing block and the electric screwdriver guide rail.
Preferably, the connecting plate is provided with a Z-axis fixing piece, and a camera and a light source are fixed below the Z-axis fixing piece.
Preferably, the double-head screw locking device further comprises a second conveying mechanism, a second separating mechanism and a second locking mechanism fixed above the second separating mechanism, the second conveying mechanism, the second separating mechanism and the second locking mechanism are respectively identical in structure to the first conveying mechanism, the first separating mechanism and the first locking mechanism, and the second conveying mechanism, the second separating mechanism and the second locking mechanism are respectively arranged symmetrically to the first conveying mechanism, the first separating mechanism and the first locking mechanism by taking the middle plate as a symmetrical plane.
The utility model discloses a double-end lock screw device's beneficial effect is: the U-shaped groove of the front end trough is aligned with the outlet of the feeder of the screw machine, the standard screws are firstly placed into the U-shaped groove, the screw cap of the screws can smoothly pass through the U-shaped groove by adjusting the distance between the rear end trough and the rear end material cover and the distance between the front end trough and the front end material cover, and the screw cap of the screws can be limited by the steps through the concave steps arranged at the opening of the U-shaped groove. After the screw got into U type groove, the rethread was aerifyd in the centering hole, and the air current blows to U type groove from the aperture, drives the screw and moves forward, and through the first conveying mechanism that the level was placed, the screw is at the in-process that goes forward, carries out step by step propulsion through controllable air current, effectively avoids direction conversion and gravity whereabouts in-process speed inconsistent and leads to the screens. After the screws come out of the first conveying mechanism, one screw is separated through the first separating mechanism, and the screws are locked on a required product through the first locking mechanism.
Drawings
Fig. 1 is a schematic structural view of a double-head screw locking device of the present invention.
Fig. 2 is a front view of a double-headed screw locking device of the present invention.
Fig. 3 is a side view of a double-headed screw locking device of the present invention.
Fig. 4 is a schematic diagram of the first conveying mechanism and the second conveying mechanism of the double-head screw locking device of the present invention.
Fig. 5 is a schematic view of another embodiment of the first conveying mechanism and the second conveying mechanism of the double-head screw locking device of the present invention.
Detailed Description
The invention will be further elucidated and described with reference to the following embodiments and drawings in which:
referring to fig. 1, 4 and 5, a double-head screw locking device includes a first conveying mechanism 10, a first separating mechanism 20 and a first locking mechanism 30 fixed above the first separating mechanism 20, wherein the first separating mechanism 20 divides screws coming out of the first conveying mechanism 10 into separate screws, the first locking mechanism 30 is used for locking the screws coming out of the first separating mechanism 20 on a desired product, and the first conveying mechanism 10 includes a substrate 11; be fixed in the rear end silo 13 of base plate 11, rear end silo 13 front end is connected with front end silo 12, be fixed in rear end material lid 15 on rear end silo 13 upper portion, be fixed in front end material lid 14 on front end silo 12 upper portion, be equipped with both ends confined centre bore in rear end material lid 15 and the front end material lid 14, the centre bore equipartition has the aperture, the air current of aperture is used for promoting the screw and goes forward, communicating U type groove has been seted up to rear end silo 13 and front end silo 12, the opening in U type groove up and the opening part is equipped with the step of indent, the clearance between rear end silo 13 and the rear end material lid 15 can be adjusted, the clearance between front end silo 12 and the front end material lid 14 can be adjusted.
Aim at the export of screw machine feeder with the U type groove of front end silo 12, earlier put into U type inslot with standard screw, through adjusting the interval between rear end silo 13 and the rear end material lid 15, the interval between front end silo 12 and the front end material lid 14, make the nut of screw pass through smoothly to the step of the indent of seting up through the opening part in U type groove, the step can carry on spacingly to the nut of screw. After the screw got into U type groove, the rethread was aerifyd in the centering hole, and the air current blows to U type groove from the aperture, drives the screw and moves forward, and through the first conveying mechanism 10 that the level was placed, the screw is at the in-process that goes forward, carries out step by step propulsion through controllable air current, effectively avoids direction conversion and gravity whereabouts in-process speed inconsistent and leads to the screens. After the screws come out from the first conveying mechanism 10, one screw is separated by the first separating mechanism 20, and then the screw is locked on a required product by the first locking mechanism 30.
Referring to fig. 4 and 5, the first separating mechanism 20 includes a fixed plate 26 fixed on the base plate 11, a linear guide 27 and a lateral cylinder 21, a sliding plate 23 is sleeved on the linear guide 27, the sliding plate 23 is connected with a cylinder shaft of the lateral cylinder 21, the fixed plate 26 and the sliding plate 23 are arranged opposite to each other, a material separating elastic sheet 25 is fixed on the fixed plate 26 and the sliding plate 23 and is matched with each other, the material separating elastic sheet 25 is provided with a tension spring for opening and closing the material separating elastic sheet downwards and upwards, at least one end of the material separating elastic sheet is provided with a U-shaped groove, and the end surface of the fixed plate 26 is flush with. The base plate 11 is further fixed with a limiting block 24, and the limiting block 24 is arranged on the side edge of the sliding plate 23 and used for limiting the sliding plate 23. The lateral cylinder 21 drives the fixing plate 26 to move on the linear guide rail 27, so as to drive the U-shaped groove of the material separating elastic sheet 25 to separate the screws conveyed out from the first conveying mechanism 10.
The end part of the front end trough 12 is provided with a front end sensor 16, the rear end trough 13 is provided with a rear end sensor 17, the material distributing elastic sheet 25 is fixed with a material discharging sensor 22 at the right position, and the direction of the small hole and the direction of the U-shaped trough is 45 degrees. The length of the rear end trough 13 is twice that of the front end trough 12, and the rear end sensor 17 is fixed in the middle of the rear end trough 13. The side of front end silo 12 is equipped with side top shell fragment 18, 13 sides of rear end silo are equipped with material blocking shell fragment 19, when front end sensor 16 detected no material, the screw machine supplier of butt joint begins to work, carry the screw into the U type inslot of front end silo 12, when ejection of compact sensor 22 detected there is the material, the work of pause screw machine supplier, the U type groove of front end silo 12 is stopped up to side top shell fragment 18, material blocking shell fragment 19 blocks the route between front end silo 12 and the rear end silo 13, first separating mechanism 20 separates out first conveyor 10's screw one by one. When rear end sensor 17 detected no material, keep off material shell fragment 19 and loosen, blow in rear end silo 13 with the material of front end silo 12 is whole, because the length of rear end silo 13 is the twice of front end silo 12, the material of front end silo 12 can be held completely to rear end silo 13, can not cause the card material. Then the side top spring 18 is loosened, the stop spring 19 is stopped again, and the butt-jointed screw machine supplier starts to work again, so that the U-shaped groove of the front end trough 12 is filled with the materials again. So relapse, make the continuous supply of material to the condition of full material can not appear all the time to the screw that makes in the rear end silo 13, reduces the risk that card material and screw dropped, and through keeping off material shell fragment 19 and side top shell fragment 18, prevents the backward flow of material. And because front end silo 12 and rear end silo 13 are placed horizontally, make the gravity of screw perpendicular to plane, reduced the phenomenon that the screw piles up the card material.
Referring to fig. 1, 2 and 3, the first locking mechanism 30 includes a connecting plate 31 fixed on the base plate 11, a lifting cylinder 35 is fixed on the connecting plate 31, the lifting cylinder 35 is connected with a motor fixing plate 28, the motor fixing plate 28 is connected with an electric screwdriver fixing block 41, the motor fixing plate 28 is fixed with a servo motor 39, the electric screwdriver fixing block 41 is provided with an electric screwdriver sleeve 47 positioned above the material separating elastic sheet 25, and a diaphragm coupling 42 for connection is arranged between the electric screwdriver sleeve 47 and the servo motor 39. The electric screwdriver fixing block 41 is provided with an air nozzle 46 for vacuumizing the electric screwdriver sleeve 47 and a negative pressure meter 45 for detecting the negative pressure of the electric screwdriver sleeve 47. A locking guide rail 32 and an air cylinder fixing plate 34 are fixed on the connecting plate 31, a lifting air cylinder 35 is fixed on the air cylinder fixing plate 34, a locking fixing plate 26 is sleeved on the locking guide rail 32, and the locking fixing plate 26 is connected with an air cylinder shaft of the lifting air cylinder 35. A locking cylinder 52 and a motor fixing plate 28 are fixed on the locking fixing plate 26, an intermediate plate 36 is fixed on the connecting plate 31, a motor guide rail 37 is arranged on the intermediate plate 36, the motor fixing plate 28 is sleeved on the motor guide rail 37, the lower part of a cylinder shaft of the locking cylinder 52 can be propped against the motor fixing plate 28, a first buffer mechanism 51 is arranged between the locking cylinder 52 and the motor fixing plate 28, an electric screwdriver guide rail 43 is arranged on the motor fixing plate 28, an electric screwdriver fixing block 41 is sleeved on the electric screwdriver guide rail 43, and a second buffer mechanism 44 is arranged between the electric screwdriver fixing block 41 and the electric screwdriver guide rail 43. The first damper mechanism 51 and the second damper mechanism 44 are each constituted by a guide rod and a damper spring, and play a role of damping during movement by utilizing the contractibility of the damper spring.
When the material is clamped on the spring plate 25, the first locking mechanism 30 starts to work, firstly, the lifting cylinder 35 descends to drive the motor fixing plate 28 to move downwards, the electric screwdriver sleeve 47 moves downwards, then, the air nozzle 46 is externally connected with an air suction source to enable the electric screwdriver sleeve 47 to generate vacuum to suck the screw on the spring plate 25, the servo motor 39 rotates for two circles firstly to enable the nut of the screw to be completely attached to the electric screwdriver sleeve 47, then, the locking cylinder 52 drives the motor fixing plate 28 to move downwards continuously, the spring plate 25 is extruded downwards through the electric screwdriver sleeve 47 to enable the spring plate 25 to be opened, the screw is loosened, then, the servo motor 39 rotates to be transmitted to the electric screwdriver sleeve 47 through the diaphragm coupling 42, and the screw is screwed on the product.
The connecting plate 31 is provided with a Z-axis fixing member 48, and a camera and a light source 49 are fixed below the Z-axis fixing member 48. The integrated device can be fixed to the robot arm by the Z-axis fixing member 48, and the integrated device is moved by the robot arm and aligned when moved by the camera and the light source 49. Can adjust angle, height and distance in a flexible way connecing the material in-process to can adjust in a flexible way according to the lock of product is paid the height, shortens the working distance, improves the operating efficiency.
The double-end screw locking device further comprises a second conveying mechanism 40, a second separating mechanism 50 and a second locking mechanism 60 fixed above the second separating mechanism 50, the structures of the second conveying mechanism 40, the second separating mechanism 50 and the second locking mechanism 60 are respectively the same as those of the first conveying mechanism 10, the first separating mechanism 20 and the first locking mechanism 30, and the second conveying mechanism 40, the second separating mechanism 50 and the second locking mechanism 60 are respectively symmetrically arranged with the first conveying mechanism 10, the first separating mechanism 20 and the first locking mechanism 30 by taking the middle plate 36 as a symmetrical plane. And the electric screwdriver sleeve 47 of the first locking mechanism 30 and the second locking mechanism 60 can be selected to be in different formats, so that different screws can be screwed on one device at the same time, the assembly of products is facilitated, and the assembly efficiency and the synergistic effect are improved.
Among the above-mentioned scheme, aim at the export of screw machine feeder with the U type groove of front end silo 12, earlier put into U type inslot with standard screw, through the interval of adjusting between rear end silo 13 and the rear end material lid 15, the interval between front end silo 12 and the front end material lid 14, make the nut of screw pass through smoothly to the step of the indent of seting up through the opening part in U type groove, the step can carry on spacingly to the nut of screw. After the screw got into U type groove, the rethread was aerifyd in the centering hole, and the air current blows to U type groove from the aperture, drives the screw and moves forward, and through the first conveying mechanism 10 that the level was placed, the screw is at the in-process that goes forward, carries out step by step propulsion through controllable air current, effectively avoids direction conversion and gravity whereabouts in-process speed inconsistent and leads to the screens. After the screws come out from the first conveying mechanism 10, one screw is separated by the first separating mechanism 20, and then the screw is locked on a required product by the first locking mechanism 30.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. The double-head screw locking device is characterized by comprising a first conveying mechanism, a first separating mechanism and a first locking mechanism fixed above the first separating mechanism, wherein the first separating mechanism divides screws discharged from the first conveying mechanism into separate screws, and the first locking mechanism is used for locking the screws discharged from the first separating mechanism on a required product;
the first conveying mechanism comprises a substrate;
the rear end trough is fixed on the base plate, and the front end of the rear end trough is connected with the front end trough;
the rear end material cover is fixed on the upper portion of the rear end material groove, the front end material cover is fixed on the upper portion of the front end material groove, two end-closed center holes are formed in the rear end material cover and the front end material cover, small holes are uniformly distributed in the center holes, air flow of the small holes is used for pushing screws to move forwards, communicated U-shaped grooves are formed in the rear end material groove and the front end material groove, the opening of each U-shaped groove faces upwards, the opening of each U-shaped groove is provided with an inwards concave step, the gap between the rear end material groove and the rear end material cover can be adjusted, and the gap between the front end material groove and the front.
2. The double-ended screw locking device according to claim 1, wherein the first separating mechanism comprises a fixed plate fixed on the base plate, a linear guide rail and a lateral cylinder, a sliding plate is sleeved on the linear guide rail, the sliding plate is connected with a cylinder shaft of the lateral cylinder, the fixed plate and the sliding plate are arranged opposite to each other, a material separating elastic sheet is fixed on the fixed plate and the sliding plate and matched with each other, the material separating elastic sheet is provided with a tension spring for enabling the material separating elastic sheet to be opened downwards and closed upwards, a U-shaped groove is formed in at least one end of the material separating elastic sheet, and the end face of the fixed plate is flush with the end face of the.
3. The double-headed screw locking device according to claim 2, wherein the front end of the front trough is provided with a front sensor, the rear trough is provided with a rear sensor, the material-separating spring plate is fixed with a material-discharging sensor at a position opposite to the material-separating spring plate, and the small hole is at an angle of 45 degrees to the direction of the U-shaped groove.
4. The double-ended screw locking device according to claim 3, wherein the rear-end trough is twice as long as the front-end trough, and the rear-end sensor is fixed to the middle of the rear-end trough.
5. The double-headed screw locking device according to any one of claims 2 to 4, wherein the first locking mechanism comprises a connecting plate fixed on the base plate, a lifting cylinder is fixed on the connecting plate, a motor fixing plate is connected to the lifting cylinder, a screwdriver fixing block is connected to the motor fixing plate, a servo motor is fixed on the motor fixing plate, a screwdriver sleeve positioned above the material separating elastic sheet is arranged on the screwdriver fixing block, and a diaphragm coupling for connection is arranged between the screwdriver sleeve and the servo motor.
6. The double-headed screw locking device according to claim 5, wherein the screwdriver fixing block is provided with an air nozzle for vacuumizing the screwdriver sleeve and a negative pressure gauge for detecting the negative pressure of the screwdriver sleeve.
7. The double-ended screw locking device according to claim 6, wherein a locking guide rail and a cylinder fixing plate are fixed on the connecting plate, the lifting cylinder is fixed on the cylinder fixing plate, the locking guide rail is sleeved with the locking fixing plate, and the locking fixing plate is connected with a cylinder shaft of the lifting cylinder.
8. The double-headed screw locking device according to claim 7, wherein a locking cylinder is fixed on the locking fixing plate, an intermediate plate is fixed on the connecting plate, a motor guide rail is arranged on the intermediate plate, the motor fixing plate is sleeved on the motor guide rail, a cylinder shaft of the locking cylinder can be pressed against the motor fixing plate below, a first buffer mechanism is arranged between the locking cylinder and the motor fixing plate, the motor fixing plate is provided with an electric screwdriver guide rail, the electric screwdriver fixing block is sleeved on the electric screwdriver guide rail, and a second buffer mechanism is arranged between the electric screwdriver fixing block and the electric screwdriver guide rail.
9. The double-ended screw locking device according to claim 5, wherein the connecting plate is provided with a Z-axis fixing member, and a camera and a light source are fixed below the Z-axis fixing member.
10. The double-head screw locking device according to any one of claims 1 to 3, further comprising a second conveying mechanism, a second separating mechanism and a second locking mechanism fixed above the second separating mechanism, wherein the second conveying mechanism, the second separating mechanism and the second locking mechanism have the same structure as the first conveying mechanism, the first separating mechanism and the first locking mechanism, respectively, and are arranged symmetrically with the first conveying mechanism, the first separating mechanism and the first locking mechanism by taking the middle plate as a symmetrical plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920783092.3U CN210209345U (en) | 2019-05-28 | 2019-05-28 | Double-end lock screw device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920783092.3U CN210209345U (en) | 2019-05-28 | 2019-05-28 | Double-end lock screw device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210209345U true CN210209345U (en) | 2020-03-31 |
Family
ID=69928251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920783092.3U Expired - Fee Related CN210209345U (en) | 2019-05-28 | 2019-05-28 | Double-end lock screw device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210209345U (en) |
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2019
- 2019-05-28 CN CN201920783092.3U patent/CN210209345U/en not_active Expired - Fee Related
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Granted publication date: 20200331 |