CN107813253B - Ball head cover and spring clip auxiliary assembly device - Google Patents
Ball head cover and spring clip auxiliary assembly device Download PDFInfo
- Publication number
- CN107813253B CN107813253B CN201711405937.7A CN201711405937A CN107813253B CN 107813253 B CN107813253 B CN 107813253B CN 201711405937 A CN201711405937 A CN 201711405937A CN 107813253 B CN107813253 B CN 107813253B
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- mounting seat
- hole
- transmission shaft
- spring clip
- spring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/0035—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for motor-vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
Abstract
The invention discloses an auxiliary assembling device for a ball head sleeve and a spring clamp, which comprises a bottom plate, a mounting seat, a transmission shaft, an elliptical disc, a sliding block, a cylindrical pin and a first compression spring, wherein the mounting seat is provided with a sliding groove, the sliding block can slide along the sliding groove, and the sliding block is vertically provided with the cylindrical pin. The spring clip is vertically placed on the upper surface of the mounting seat, the two cylindrical pins are located in the spring clip, the rotating transmission shaft drives the elliptic disc to rotate, the distance between the two cylindrical pins is increased, the clamping opening formed by the two bending plates of the spring clip is pushed open, when the clamping opening is pushed open to a certain distance, the ball head sleeve is pressed downwards along the vertical direction, the ball head sleeve pushes the upper surface of the cylindrical pin downwards so that the cylindrical pin downwards moves, the upper surface of the cylindrical pin moves to the upper surface of the mounting seat to coincide, the part of the spring clip is clamped into the chute formed in the spherical sleeve, the device finishes the process that the spring clip is clamped into the ball head sleeve, the assembling difficulty between the ball head sleeve and the spring clip is reduced, and the assembling efficiency is improved.
Description
Technical Field
The invention relates to the technical field of assembling devices, in particular to an auxiliary assembling device for a ball head sleeve and a spring clip.
Background
Many automobiles now have the function of automatically opening the trunk through electric control, and a universal joint is needed for realizing the function, and the universal joint comprises a joint rod, a spring clip (shown in figure 1), a ball head sleeve (shown in figure 2) and other parts. In the assembly process of the universal joint, after the spring clip is required to be opened to a certain angle in the assembly of the ball head sleeve and the spring clip, the bent part of the spring clip is clamped into the groove correspondingly formed in the ball head sleeve, and the assembly of the ball head sleeve and the spring clip is completed. And then a head mounting rod is mounted on the ball head sleeve with the spring clip to complete the mounting of the universal joint. However, during assembly, the spring clamp made of metal is manually and directly opened to finish assembly, so that certain difficulty exists, labor is wasted, the assembly efficiency is low, and hands are easily injured due to improper operation.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: how to provide the auxiliary equipment device of ball head cover and spring card, reduce the assembly degree of difficulty between ball head cover and the spring card, improve assembly efficiency.
In order to solve the technical problems, the invention adopts the following technical scheme.
The utility model provides a ball headgear assists assembly quality with spring clip, includes:
a base plate;
the spring clamp comprises a mounting seat, a spring clamp and a clamping piece, wherein the mounting seat is positioned above a bottom plate and forms a certain distance with the bottom plate, a stepped hole penetrating through the mounting seat is vertically arranged on the mounting seat, a large circular hole of the stepped hole is arranged upwards, the diameter of the large circular hole is larger than the diameter corresponding to the circular arc part of the spring clamp, a sliding chute penetrating through the upper surface of the mounting seat is arranged on the mounting seat, the sliding chute is radially arranged along the large circular hole and penetrates through the circumferential surface of the large circular hole, the sliding chute is symmetrically arranged along a plane which is vertical to the length direction of the sliding chute and penetrates through the circle center of the large circular hole, and the length of the sliding chute is larger than or equal to the corresponding chord length when the elastic deformation limit of the bending part of the spring clamp is reached;
the transmission shaft penetrates through the small round hole of the stepped hole and is rotatably connected with the mounting seat, the lower end of the transmission shaft is positioned in a gap between the mounting seat and the bottom plate, an elliptical disc is horizontally arranged at the upper end of the transmission shaft and is arranged in the large round hole, and the difference between the long axis and the short axis of the elliptical disc is more than or equal to the deformation required by the spring clamp;
the sliding block is arranged in the sliding grooves on two sides of the large circular hole, a cylindrical pin is vertically arranged on the upper surface of the sliding block, the cylindrical pin penetrates out of the upper surface of the mounting seat along the sliding groove, the minimum value of the distance between the outer ends of the cylindrical pins on two sides of the circular hole is smaller than or equal to the chord length corresponding to the bending part of the spring clamp, the height of the sliding block is smaller than the depth of the sliding groove so that the sliding block has an up-and-down moving space, a first compression spring is vertically arranged between the bottom of the sliding block and the bottom surface of the sliding groove, the initial vertical distance between the lower surface of the sliding block and the bottom surface of the sliding groove is larger than or equal to the distance between the cylindrical pin and the upper surface of the mounting seat, and the height of the part, extending into the two cylindrical pins on two sides of the large circular hole, of the ball head sleeve is smaller than or equal to the distance between the upper surface of the elliptical disk and the upper surface of the mounting seat.
Thus, when the spring clip and the ball head sleeve are assembled, the spring clip is vertically placed on the upper surface of the mounting seat, the two cylindrical pins are located inside the spring clip, the slider abuts against the short shaft end of the oval disc at the moment, the transmission shaft is rotated and drives the oval disc to rotate, the two sliders are pushed to move outwards in the rotating process of the oval disc, the distance between the two cylindrical pins is increased, the clamping opening formed by the two bent plates of the spring clip is jacked open by the cylindrical pins, when the clamping opening is jacked to a certain distance, the ball head sleeve is pressed downwards along the vertical direction, the ball head sleeve jacks the upper surface of the cylindrical pins to downwards press the cylindrical pins, when the upper surface of the cylindrical pins moves to the upper surface of the mounting seat to coincide, the cylindrical pins lose the supporting effect on the spring clip, the spring clip part is clamped into the grooves formed in the ball sleeve and is clamped into the grooves due to self elastic automatic resetting, the device completes the process of clamping the spring clip into the ball head sleeve, the assembly difficulty between the ball head sleeve and the spring clip is greatly reduced, and the assembly efficiency is improved. When the clamping process is finished, the ball head sleeve with the spring clip is taken down, and the spring clip is rolled up to finish the connection of the spring clip and the ball head sleeve, so that the process is convenient and quick.
Preferably, the first compression spring is a coil spring, a first mounting hole is vertically formed in the bottom surface of the sliding block, and the first compression spring is arranged in the first mounting hole.
Like this, the first compression spring of location that first mounting hole set up can be better prevents that the slider from inclining or falling partially at the in-process that moves along the spout, avoids first compression spring to lead to the cylindric lock can't move down or can't move to the assigned position because of inclining or falling partially and makes the device inefficacy.
Preferably, the bottom plate is vertically provided with two parallel supporting plates, the mounting seat is clamped between the two supporting plates, the sliding groove radially penetrates through the end part of the mounting seat along the large circular hole, and a second compression spring is horizontally pressed between the sliding block and the supporting plates on the same side of the large circular hole.
Like this, the setting of backup pad and second compression spring makes the slider have reset function, can be when accomplishing an auxiliary assembly for initial position is got back to two cylindric locks, and convenient assembly next time can improve equipment efficiency like this.
Preferably, the lower end of the transmission shaft is connected with an operating rod perpendicular to the transmission shaft.
Like this, the setting up of action bars makes things convenient for operating personnel to use this supplementary assembly quality, and operating personnel rotates the action bars and can drive and connect the oval dish on the transmission shaft and realize that the cylindric lock struts the spring card, and convenient the connection improves assembly efficiency.
Preferably, a second mounting hole is vertically formed in the operating rod, the second mounting hole penetrates through the operating rod, the transmission shaft penetrates through the second mounting hole, a threaded hole is formed in one end face of the operating rod along the axis of the operating rod, the threaded hole is communicated with the second mounting hole, and the operating rod is fixedly connected with the transmission shaft through a screw matched with the threaded hole.
In this way, the lever can be rotated through an angle preferably equal to or greater than 90 °, which ensures a maximum stroke. However, when the operating rod is rotated, the rotatable angle of the operating rod is limited due to the interference of the connecting structure between the bottom plate and the mounting seat. At the moment, the operating rod is rotated only by loosening the screw and then locking the screw, and the operating rod is rotated to drive the transmission shaft to realize continuous rotation. It should be noted that in the process of adjusting the operating rod, the transmission shaft needs to be fixed to avoid rotating under the driving of the second compression spring.
Preferably, the transmission shaft with oval dish passes through the key-type connection, the transmission shaft with be provided with antifriction bearing between the mount pad, servo motor is connected to the transmission shaft lower extreme.
Like this, through the setting of servo motor and bearing for the cylindric lock struts this spring card automatically, when using, operating personnel only need accomplish push down the bulb cover the process step can, be applicable to large batch production assembling process like this, improvement assembly efficiency that can step forward.
Drawings
FIG. 1 is a schematic diagram of a spring clip according to the prior art;
fig. 2 is a schematic structural view of a ball head sleeve in the background art;
FIG. 3 is a schematic view of the structure of the ball sleeve equipped with the spring clip;
fig. 4 is a front view of an auxiliary assembling device for a ball head sleeve and a spring clip according to an embodiment of the present invention;
FIG. 5 is a view from the direction B of FIG. 4;
fig. 6 is a top view of an auxiliary assembling device for a ball socket and a spring clip according to an embodiment of the present invention;
fig. 7 is a view in the direction C of fig. 6.
Wherein, 1 is the bottom plate, 2 is the backup pad, 3 is the mount pad, 4 is the transmission shaft, 5 is the oval dish, 6 is the spout, 7 is the slider, 8 is first compression spring, 9 is the cylindric lock, 10 is the second compression spring, 11 is the action bars, 12 is the screw.
Detailed description of the preferred embodiments
The present invention will be described in detail below with reference to the accompanying drawings and examples.
Referring to fig. 1 to 7, fig. 1 is a schematic structural view of a spring clip in the background art, fig. 2 is a schematic structural view of a ball head sleeve in the background art, fig. 3 is a schematic structural view of a ball head sleeve equipped with a spring clip, fig. 4 is a front view of an auxiliary assembly apparatus for a ball head sleeve and a spring clip provided in an embodiment of the present invention, fig. 5 is a view from direction B of fig. 4, fig. 6 is a top view of the auxiliary assembly apparatus for a ball head sleeve and a spring clip provided in an embodiment of the present invention, and fig. 7 is a view from direction C of fig. 6.
This embodiment provides a ball headgear with supplementary assembly quality of spring card, includes:
a base plate 1; the mounting seat 3 is positioned above the bottom plate 1 and forms a certain distance with the bottom plate, a stepped hole penetrating through the mounting seat 3 is vertically arranged on the mounting seat 3, a large circular hole of the stepped hole is arranged upwards, the diameter of the large circular hole is larger than the diameter corresponding to the circular arc part of the spring clamp, a sliding groove 6 penetrating through the upper surface of the mounting seat 3 is arranged on the mounting seat 3, the sliding groove 6 is arranged along the diameter direction of the large circular hole and penetrates through the circumferential surface of the large circular hole, the sliding groove 6 is symmetrically arranged along the plane perpendicular to the length direction of the sliding groove 6 and penetrating through the circle center of the large circular hole, and the length of the sliding groove 6 is larger than or equal to the corresponding chord length when the elastic deformation of the bending part of the spring clamp is limited; the transmission shaft 4 penetrates through a small round hole of the stepped hole and is rotatably connected with the mounting base 3, the lower end of the transmission shaft 4 is positioned in a gap between the mounting base 3 and the bottom plate, an elliptical disc 5 is horizontally arranged at the upper end of the transmission shaft 4, the elliptical disc 5 is arranged in a large round hole, and the difference between the long axis and the short axis of the elliptical disc 5 is more than or equal to the deformation required by the spring clamp; slider 7, be located and all be equipped with slider 7 in the spout 6 of big round hole both sides, the vertical cylindric lock 9 that is equipped with of slider 7 upper surface, the upper surface of mount pad 3 is worn out along spout 6 to cylindric lock 9, the minimum less than or equal to spring clip chord length that the department of buckling corresponds of interval between the outer end of the cylindric lock 9 that is located the round hole both sides, slider 7's the degree of depth that highly is less than spout 6 is so that the slider has the space of reciprocating, vertically be provided with first compression spring 8 between slider 7 bottom and the 6 bottom surfaces of spout, at vertical initial interval more than or equal to the distance that cylindric lock 9 stretches out mount pad 3 upper surface between slider 7 lower surface and the 6 bottom surfaces of spout, the ball head cover stretches into the distance between the upper surface of 5 to mount pad 3 upper surface of elliptical disk of the part between two cylindric locks 9 of big round hole both sides.
Thus, when the spring clip and the ball head sleeve are assembled, the spring clip is vertically placed on the upper surface of the mounting seat, the two cylindrical pins are located inside the spring clip, the slider abuts against the short shaft end of the oval disc at the moment, the transmission shaft is rotated and drives the oval disc to rotate, the two sliders are pushed to move outwards in the rotating process of the oval disc, the distance between the two cylindrical pins is increased, the clamping opening formed by the two bent plates of the spring clip is jacked open by the cylindrical pins, when the clamping opening is jacked to a certain distance, the ball head sleeve is pressed downwards along the vertical direction, the ball head sleeve jacks the upper surface of the cylindrical pins to downwards press the cylindrical pins, when the upper surface of the cylindrical pins moves to the upper surface of the mounting seat to coincide, the cylindrical pins lose the supporting effect on the spring clip, the spring clip part is clamped into the grooves formed in the ball sleeve and is clamped into the grooves due to self elastic automatic resetting, the device completes the process of clamping the spring clip into the ball head sleeve, the assembly difficulty between the ball head sleeve and the spring clip is greatly reduced, and the assembly efficiency is improved. When the clamping process is finished, the ball head sleeve with the spring clamp is taken down, and the spring clamp is rolled up to finish the connection of the spring clamp and the ball head sleeve, so that the clamping process is convenient and quick.
In this embodiment, the first compression spring 8 is a coil spring, a first mounting hole is vertically formed in the bottom surface of the slider 7, and the first compression spring 8 is disposed in the first mounting hole.
Like this, the first compression spring of location that first mounting hole set up can be better prevents that the slider from inclining or falling partially at the in-process that moves along the spout, avoids first compression spring to lead to the cylindric lock can't move down or can't move to the assigned position because of inclining or falling partially and makes the device inefficacy.
In this embodiment, two backup pads 2 that are parallel to each other are vertically set up on bottom plate 1, and mount pad 3 presss from both sides and establishes between two backup pads 2, and spout 6 radially runs through mount pad 3 tip along the great circle aperture, and the horizontal crimping has second compression spring 10 between slider 7 and the backup pad 2 that lie in the great circle aperture with one side.
Like this, backup pad and second compression spring's setting make the slider have the reset function, can be when accomplishing once supplementary assembly for initial position is got back to two cylindric locks, and convenient assembly next time can improve equipment efficiency like this.
In this embodiment, the lower end of the transmission shaft 4 is connected with an operating rod 11 perpendicular to the transmission shaft.
Like this, the setting up of action bars makes things convenient for operating personnel to use this supplementary assembly quality, and operating personnel rotates the action bars and can drive and connect the oval dish on the transmission shaft and realize that the cylindric lock struts the spring card, and convenient the connection improves assembly efficiency.
In this embodiment, the vertical second mounting hole that is equipped with on the action bars 11, the second mounting hole runs through action bars 11, and transmission shaft 4 wears to establish in the second mounting hole, and 11 terminal surfaces of action bars are provided with the screw hole along the 11 axes of action bars, and the screw hole communicates with the second mounting hole, and action bars 11 and transmission shaft 4 are through 12 fastening connections with screw hole complex screw.
In this way, the lever can be rotated through an angle preferably equal to or greater than 90 °, which ensures a maximum stroke. However, when the operating lever is rotated, the angle at which the operating lever can be rotated is limited due to interference of the connection structure between the base plate and the mounting seat. At the moment, the operating rod is rotated only by loosening the screw and then locking the screw, and the rotating operating rod drives the transmission shaft to realize continuous rotation. It should be noted that in the process of adjusting the operating rod, the transmission shaft needs to be fixed to avoid rotating under the driving of the second compression spring.
In this embodiment, transmission shaft 4 passes through the key-type connection with oval dish 5, is provided with antifriction bearing between transmission shaft 4 and the mount pad 3, and servo motor is connected to 4 lower extremes of transmission shaft.
Like this, through the setting of servo motor and bearing for the cylindric lock struts this spring card automatically, when using, operating personnel only need accomplish down the process step of pressing the bulb cover can, be applicable to large batch production assembling process like this, improvement assembly efficiency that can step forward.
Claims (4)
1. The utility model provides a ball headgear assists assembly quality with spring clip which characterized in that includes:
a base plate (1);
the spring clamp mounting structure comprises a mounting seat (3), wherein the mounting seat (3) is positioned above a bottom plate (1) and forms a certain distance with the bottom plate, a stepped hole penetrating through the mounting seat (3) is vertically formed in the mounting seat (3), a large circular hole of the stepped hole is arranged upwards, the diameter of the large circular hole is larger than that of a spring clamp circular arc part, a sliding groove (6) penetrating through the upper surface of the mounting seat (3) is formed in the mounting seat (3), the sliding groove (6) is radially arranged along the large circular hole and penetrates through the circumferential surface of the large circular hole, the sliding groove (6) is symmetrically arranged along a plane which is perpendicular to the length direction of the sliding groove (6) and penetrates through the large circular hole, and the length of the sliding groove (6) is larger than or equal to the corresponding chord length when the elastic deformation of the spring clamp bending part is limited;
the transmission shaft (4) penetrates through a small round hole of the stepped hole and is rotatably connected with the mounting seat (3), the lower end of the transmission shaft (4) is located in a gap between the mounting seat (3) and the bottom plate, an elliptical disc (5) is horizontally arranged at the upper end of the transmission shaft (4), the elliptical disc (5) is arranged in the large round hole, and the difference between the long axis and the short axis of the elliptical disc (5) is larger than or equal to the deformation amount required by the spring clamp;
the sliding block (7) is arranged in the sliding grooves (6) on two sides of the large circular hole, the sliding block (7) is arranged on the upper surface of the sliding block (7) in a vertical mode, the cylindrical pins (9) penetrate through the upper surface of the mounting seat (3) along the sliding grooves (6), the minimum value of the distance between the outer ends of the cylindrical pins (9) on the two sides of the circular hole is smaller than or equal to the chord length corresponding to the bending position of the spring clamp, the height of the sliding block (7) is smaller than the depth of the sliding grooves (6) so that the sliding block has an up-and-down moving space, a first compression spring (8) is vertically arranged between the bottom of the sliding block (7) and the bottom surface of the sliding groove (6), the initial vertical distance between the lower surface of the sliding block (7) and the bottom surface of the sliding grooves (6) is larger than or equal to the distance between the cylindrical pins (9) extending out of the upper surface of the mounting seat (3), and the height of the part, extending into the two cylindrical pins (9) on two sides of the large circular hole, of the ball, is smaller than or equal to the distance between the upper surface of the elliptical disk (5) and the mounting seat (3);
the first compression spring (8) is a spiral spring, a first mounting hole is vertically formed in the bottom surface of the sliding block (7), and the first compression spring (8) is arranged in the first mounting hole;
the bottom plate (1) is gone up vertical two backup pads (2) that are parallel to each other that set up, mount pad (3) press from both sides and establish two backup pad (2) between, spout (6) are followed big round hole radially runs through mount pad (3) tip is located big round hole is with one side slider (7) with horizontal crimping has second compression spring (10) between backup pad (2).
2. The bulb cover and spring clip auxiliary assembly device according to claim 1, characterized in that the lower end of the transmission shaft (4) is connected with an operating rod (11) perpendicular to the transmission shaft (4).
3. The auxiliary assembling device for the ball head sleeve and the spring clip according to claim 2, wherein a second mounting hole is vertically formed in the operating rod (11), the second mounting hole penetrates through the operating rod (11), the transmission shaft (4) is inserted into the second mounting hole, a threaded hole is formed in one end surface of the operating rod (11) along the axis of the operating rod (11), the threaded hole is communicated with the second mounting hole, and the operating rod (11) is fixedly connected with the transmission shaft (4) through a screw (12) matched with the threaded hole.
4. The auxiliary assembly device for the ball head sleeve and the spring clip according to claim 1, wherein the transmission shaft (4) is connected with the elliptical disk (5) through a key, a rolling bearing is arranged between the transmission shaft (4) and the mounting seat (3), and a servo motor is connected to the lower end of the transmission shaft (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711405937.7A CN107813253B (en) | 2017-12-22 | 2017-12-22 | Ball head cover and spring clip auxiliary assembly device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711405937.7A CN107813253B (en) | 2017-12-22 | 2017-12-22 | Ball head cover and spring clip auxiliary assembly device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107813253A CN107813253A (en) | 2018-03-20 |
| CN107813253B true CN107813253B (en) | 2023-04-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711405937.7A Active CN107813253B (en) | 2017-12-22 | 2017-12-22 | Ball head cover and spring clip auxiliary assembly device |
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| Country | Link |
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| CN (1) | CN107813253B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282242A (en) * | 2018-08-30 | 2019-01-29 | 湖州奥驿汽车服务有限公司 | Automobile flexible lamp holder |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006016277A1 (en) * | 2006-03-31 | 2007-10-04 | Siemens Ag | Quick release fastener for closing housing of switchgear e.g. switch cabinet, has spring part and pin configured such that pin is insertable into spring part with translatory movement for installation of pin head at spring part |
| KR100848773B1 (en) * | 2007-03-20 | 2008-07-28 | 지엠대우오토앤테크놀로지주식회사 | A jig for pressing in a spring pin |
| CN102658476B (en) * | 2012-05-18 | 2014-07-23 | 宁波继峰汽车零部件股份有限公司 | Automatic assembly tool and method for spring clamp ring of automotive seat headrest guide sleeve |
| CN105719868B (en) * | 2016-03-31 | 2017-12-26 | 河南平高电气股份有限公司 | Fingertip assembling jig for spring and its distending mechanism |
| CN106799579B (en) * | 2017-03-10 | 2019-02-22 | 陈琼瑜 | A kind of spool gland automatic assembling device |
| CN207578300U (en) * | 2017-12-22 | 2018-07-06 | 重庆郭氏洪伸科技有限公司 | Ball-head cover and Spring Card auxiliary assembling apparatus |
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2017
- 2017-12-22 CN CN201711405937.7A patent/CN107813253B/en active Active
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| CN107813253A (en) | 2018-03-20 |
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Address after: 400030 Zone 3, Building 1, No. 77, Jinzhi Road, Jinfeng Town, Jiulongpo District, Chongqing Patentee after: Chongqing Guoshi Hongshen Technology Co.,Ltd. Address before: 400030 No. 38, Nanxi Industrial Park, wellhead Town, Shapingba District, Chongqing Patentee before: CHONGQING GUOSHI HONGSHEN TECHNOLOGY CO.,LTD. |