CN212736629U - Automatic adding device for production of organic tin standard product - Google Patents
Automatic adding device for production of organic tin standard product Download PDFInfo
- Publication number
- CN212736629U CN212736629U CN202020746039.9U CN202020746039U CN212736629U CN 212736629 U CN212736629 U CN 212736629U CN 202020746039 U CN202020746039 U CN 202020746039U CN 212736629 U CN212736629 U CN 212736629U
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- shell
- sliding
- slide
- block
- organotin
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 title abstract description 15
- 238000001125 extrusion Methods 0.000 claims abstract description 49
- 238000007599 discharging Methods 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract 1
- 238000003466 welding Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 9
- 230000033001 locomotion Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 2
- 239000012760 heat stabilizer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The utility model belongs to the technical field of automatic feeding, in particular to an automatic feeding device for producing organic tin standard products, which aims at the problems that the existing automatic feeding device is often single and the feeding amount or frequency of organic tin is difficult to be adjusted according to the actual condition, thereby bringing difficulty to the production of the organic tin standard products, the utility model provides a proposal that comprises a first shell, a second shell is fixedly arranged in the first shell, a motor, a rectangular element and a pneumatic tube are fixedly arranged on the inner wall of the bottom of the first shell, a first mounting hole is arranged at the top of the first shell, a feeding pipe is fixedly arranged in the first mounting hole, one end of the feeding pipe extends into the first shell and is communicated with the top of the second shell, the automatic feeding device has rich functions by arranging a first extrusion rod and a first limiting rod, and can adjust the feeding amount or frequency of organic tin according to the actual condition, the method brings convenience to the production of the organotin standard product and improves the production efficiency.
Description
Technical Field
The utility model relates to an automatic add material technical field, especially relate to an automatic device that adds of organotin standard production.
Background
Organic tin is used as a heat stabilizer of PVC and is widely applied to processing production of PVC pipes, profiles and various products. A proper amount of organic tin is added in the production process of mixing PVC resin and various formulas, and the automatic addition operation of the organic tin can be completed through an automatic addition device;
however, the existing automatic adding device is often single, and the adding amount or frequency of the organotin is difficult to adjust according to the actual situation, which brings difficulty to the production of the organotin standard product.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the existing automatic adding device is often single, is difficult to adjust the amount or the frequency that organotin added to the actual situation, brings the shortcoming of difficulty for the production of organotin standard product, and the automatic adding device of an organotin standard product production who provides.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an automatic adding device for producing an organic tin standard product comprises a first shell, wherein a second shell is fixedly arranged in the first shell, a motor, a rectangular element and a pneumatic tube are fixedly arranged on the inner wall of the bottom of the first shell, a first mounting hole is formed in the top of the first shell, a feeding tube is fixedly arranged in the first mounting hole, one end of the feeding tube extends into the first shell and is communicated with the top of the second shell, a second mounting hole is formed in the bottom of the first shell, a discharging tube is fixedly arranged in the second mounting hole, one end of the discharging tube extends into the first shell and is communicated with the bottom of the second shell, a first check valve is fixedly arranged at the top end of the discharging tube, a second check valve is fixedly arranged at the bottom end of the discharging tube, a third mounting hole is formed in one side of the discharging tube, one end of the pneumatic tube is fixedly arranged in the third mounting hole, and an air vent connected with the discharging tube, the top of the rectangular element is provided with a slider groove, a rectangular slider is arranged in the slider groove in a sliding mode and matched with the air pressure pipe, a first extrusion rod is arranged at one end of the rectangular slider in a sliding mode and matched with the motor.
Preferably, the welding has the rotation axis on the output shaft of motor, the one end fixedly connected with runner of rotation axis, and one side fixedly connected with pivot of runner, the outside of pivot is rotated the one end that the cover was equipped with the transfer line, and the other end of transfer line is rotated with the one end of first extrusion pole and is connected, and the transfer line can drive the one end reciprocating motion of first extrusion pole.
Preferably, the rectangular sliding block is provided with a sliding groove, one end of the rectangular sliding block is provided with a first sliding hole communicated with the sliding groove, the other end of the first extrusion rod penetrates through the first sliding hole, extends into the sliding groove and is fixedly connected with an extrusion block, the extrusion block is slidably mounted in the sliding groove, and the extrusion block can move along the sliding groove.
Preferably, the other end of the pneumatic tube is provided with a second sliding hole, the other end of the rectangular sliding block is fixedly connected with a second extrusion rod, one end of the second extrusion rod penetrates through the second sliding hole, extends into the pneumatic tube and is fixedly connected with a piston, and the piston can change the pneumatic pressure when moving.
Preferably, slide and the first sliding tray of putting through mutually with the slide are seted up at the top of rectangle slider, and slidable mounting has same first gag lever post in first sliding tray and the slide, and the spring groove has been seted up to the one end of first gag lever post, and slidable mounting has the second gag lever post in the spring groove, and the one end of second gag lever post extends to the outside and the fixedly connected with fixed block of rectangle slider, and the second gag lever post can drive first gag lever post through the spring groove and remove.
Preferably, the second sliding grooves have all been seted up to the both sides of slide, and slidable mounting has same spacing slider in two second sliding grooves, has seted up the fixed orifices on the spacing slider, and first gag lever post fixed mounting is in the fixed orifices, and spacing slider can remove along two spacing spouts.
Preferably, one end of a spring is fixedly connected to the inner wall of one side of the spring groove, the other end of the spring is fixedly connected with the other end of the second limiting rod, and the spring can drive the second limiting rod to reset.
Preferably, a plurality of first latches are fixedly arranged at the top of the rectangular sliding block, a plurality of second latches are fixedly arranged at the bottom of the fixed block, the second latches are matched with the first latches, and the first latches can be mutually embedded with the second latches.
Compared with the prior art, the utility model has the advantages of:
(1) according to the scheme, the first one-way valve is matched with the second one-way valve, and the piston is matched with the air pressure pipe through the second extrusion rod, so that organic tin can be automatically added along with the movement of the piston;
(2) according to the scheme, the first limiting rod is matched with the extrusion block, and the rotating wheel is matched with the first extrusion rod through the rotating shaft and the transmission rod, so that the organic tin adding amount or adding frequency can be conveniently adjusted;
the utility model discloses in through setting up first extrusion stem and first gag lever post for automatic interpolation device function is abundant, can adjust the volume or the frequency that organotin added to actual conditions, and it is convenient to bring for the production of organotin standard, promotes production efficiency.
Drawings
FIG. 1 is a schematic structural view of an automatic feeding device for organotin standard production according to the present invention;
fig. 2 is an enlarged schematic structural diagram of a position a in fig. 1 of an automatic adding device for producing an organotin standard substance according to the present invention;
fig. 3 is a schematic structural diagram of the connection between the motor and the rotating wheel of the automatic adding device for producing the organotin standard product provided by the utility model.
In the figure: 1 a first shell, 2 a second shell, 3 a motor, 4 rectangular elements, 5 a pneumatic tube, 6 a feeding tube, 7 a discharging tube, 8 a first one-way valve, 9 a second one-way valve, 10 a rectangular slide block, 11 a first extrusion rod, 12 a rotating shaft, 13 a rotating wheel, 14 a rotating shaft, 15 a transmission rod, 16 an extrusion block, 17 a second extrusion rod, 18 a piston, 19 a first limiting rod, 20 a second limiting rod, 21 a fixed block, 22 a limiting slide block, 23 a spring, 24 a first latch and 25 a second latch.
Detailed Description
The technical solutions in the embodiments will be described clearly and completely with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments, but not all embodiments.
Example one
Referring to fig. 1-3, an automatic adding device for producing an organotin standard comprises a first shell 1, a second shell 2 is fixedly installed in the first shell 1, a motor 3, a rectangular element 4 and a pneumatic tube 5 are fixedly installed on the inner wall of the bottom of the first shell 1, a first installation hole is formed in the top of the first shell 1, a feed pipe 6 is fixedly installed in the first installation hole, one end of the feed pipe 6 extends into the first shell 1 and is communicated with the top of the second shell 2, a second installation hole is formed in the bottom of the first shell 1, a discharge pipe 7 is fixedly installed in the second installation hole, one end of the discharge pipe 7 extends into the first shell 1 and is communicated with the bottom of the second shell 2, a first check valve 8 is fixedly installed at the top of the discharge pipe 7, a second check valve 9 is fixedly installed at the bottom of the discharge pipe 7, a third installation hole is formed in one side of the discharge pipe 7, one end of the pneumatic tube 5 is fixedly arranged in the third mounting hole, one end of the pneumatic tube 5 is provided with a vent hole connected with the discharge tube 7, the top of the rectangular element 4 is provided with a slide block groove, a rectangular slide block 10 is arranged in the slide block groove in a sliding mode, the rectangular slide block 10 is matched with the pneumatic tube 5, one end of the rectangular slide block 10 is provided with a first extrusion rod 11 in a sliding mode, and the first extrusion rod 11 is matched with the motor 3.
In this embodiment, the welding has rotation axis 12 on the output shaft of motor 3, and the one end fixedly connected with runner 13 of rotation axis 12, and one side fixedly connected with pivot 14 of runner 13, the outside of pivot 14 is rotated the cover and is equipped with the one end of transfer line 15, and the other end of transfer line 15 rotates with the one end of first extrusion pole 11 to be connected, and transfer line 15 can drive the one end reciprocating motion of first extrusion pole 11.
In this embodiment, a sliding groove is formed in the rectangular sliding block 10, a first sliding hole communicated with the sliding groove is formed in one end of the rectangular sliding block 10, the other end of the first extrusion rod 11 penetrates through the first sliding hole, extends into the sliding groove, and is fixedly connected with the extrusion block 16, the extrusion block 16 is slidably mounted in the sliding groove, and the extrusion block 16 can move along the sliding groove.
In this embodiment, the other end of the pneumatic tube 5 is provided with a second sliding hole, the other end of the rectangular slider 10 is fixedly connected with a second extrusion rod 17, one end of the second extrusion rod 17 penetrates through the second sliding hole to extend into the pneumatic tube 5 and is fixedly connected with a piston 18, and the piston 18 can change the pneumatic pressure by moving.
In this embodiment, the slide and the first sliding tray that put through mutually with the slide are seted up at the top of rectangular slider 10, slidable mounting has same first gag lever post 19 in first sliding tray and the slide, the spring groove has been seted up to the one end of first gag lever post 19, slidable mounting has second gag lever post 20 in the spring groove, the one end of second gag lever post 20 extends to the outside and the fixedly connected with fixed block 21 of rectangular slider 10, second gag lever post 20 can drive first gag lever post 19 through the spring groove and remove.
In this embodiment, the second sliding grooves have all been seted up to the both sides of slide, and slidable mounting has same spacing slider 22 in two second sliding grooves, has seted up the fixed orifices on the spacing slider 22, and first gag lever post 19 fixed mounting is in the fixed orifices, and spacing slider 22 can remove along two spacing spouts.
In this embodiment, one end of spring 23 is fixedly connected to the inner wall of one side of the spring groove, the other end of spring 23 is fixedly connected to the other end of second limiting rod 20, and spring 23 can drive second limiting rod 20 to reset.
In this embodiment, a plurality of first latches 24 are fixedly disposed at the top of the rectangular slider 10, a plurality of second latches 25 are fixedly disposed at the bottom of the fixed block 21, the second latches 25 are matched with the first latches 24, and the first latches 24 can be embedded with the second latches 25.
Example two
Referring to fig. 1-3, an automatic adding device for producing an organotin standard comprises a first shell 1, a second shell 2 is fixedly installed in the first shell 1 through bolts, a motor 3, a rectangular element 4 and a pneumatic tube 5 are fixedly installed on the inner wall of the bottom of the first shell 1 through bolts, a first installation hole is formed in the top of the first shell 1, a feed pipe 6 is fixedly installed in the first installation hole through welding, one end of the feed pipe 6 extends into the first shell 1 and is communicated with the top of the second shell 2, a second installation hole is formed in the bottom of the first shell 1, a discharge pipe 7 is fixedly installed in the second installation hole through welding, one end of the discharge pipe 7 extends into the first shell 1 and is communicated with the bottom of the second shell 2, a first check valve 8 is fixedly installed at the top end of the discharge pipe 7 through welding, a second check valve 9 is fixedly installed at the bottom end of the discharge pipe 7 through welding, a third mounting hole is formed in one side of the discharge pipe 7, one end of the pneumatic pipe 5 is fixedly mounted in the third mounting hole, an air vent connected with the discharge pipe 7 is formed in one end of the pneumatic pipe 5, a sliding block groove is formed in the top of the rectangular element 4, a rectangular sliding block 10 is slidably mounted in the sliding block groove, the rectangular sliding block 10 is matched with the pneumatic pipe 5, a first extrusion rod 11 is slidably mounted at one end of the rectangular sliding block 10, and the first extrusion rod 11 is matched with the motor 3.
In this embodiment, the welding has rotation axis 12 on the output shaft of motor 3, and the one end of rotation axis 12 is through welded fastening connection runner 13, and one side fixedly connected with pivot 14 of runner 13, the outside of pivot 14 is rotated the cover and is equipped with the one end of transfer line 15, and the other end of transfer line 15 rotates with the one end of first extrusion pole 11 to be connected, and transfer line 15 can drive the one end reciprocating motion of first extrusion pole 11.
In this embodiment, a sliding groove is formed in the rectangular sliding block 10, a first sliding hole communicated with the sliding groove is formed in one end of the rectangular sliding block 10, the other end of the first extrusion rod 11 penetrates through the first sliding hole, extends into the sliding groove, and is fixedly connected with the extrusion block 16 through welding, the extrusion block 16 is slidably mounted in the sliding groove, and the extrusion block 16 can move along the sliding groove.
In this embodiment, a second sliding hole is formed at the other end of the pneumatic tube 5, the other end of the rectangular slider 10 is fixedly connected with a second extrusion rod 17 by welding, one end of the second extrusion rod 17 penetrates through the second sliding hole to extend into the pneumatic tube 5 and is fixedly connected with a piston 18 by welding, and the piston 18 moves to change the pneumatic pressure.
In this embodiment, slide and the first sliding tray that put through mutually with the slide are seted up at the top of rectangular slider 10, slidable mounting has same first gag lever post 19 in first sliding tray and the slide, the spring pocket has been seted up to the one end of first gag lever post 19, slidable mounting has second gag lever post 20 in the spring pocket, the one end of second gag lever post 20 extends to the outside of rectangular slider 10 and is connected with fixed block 21 through welded fastening, second gag lever post 20 can drive first gag lever post 19 through the spring pocket and remove.
In this embodiment, the second sliding grooves have all been seted up to the both sides of slide, and slidable mounting has same spacing slider 22 in two second sliding grooves, has seted up the fixed orifices on the spacing slider 22, and first gag lever post 19 passes through welded fastening and installs in the fixed orifices, and spacing slider 22 can remove along two spacing sliding grooves.
In this embodiment, through the one end of welded fastening connection spring 23 on the one side inner wall of spring groove, the other end of spring 23 and the other end of second gag lever post 20 pass through welded fastening connection, and spring 23 can drive second gag lever post 20 and reset.
In this embodiment, a plurality of first latches 24 are fixedly disposed at the top of the rectangular slider 10, a plurality of second latches 25 are fixedly disposed at the bottom of the fixed block 21, the second latches 25 are matched with the first latches 24, and the first latches 24 can be embedded with the second latches 25.
In this embodiment, when the device is used, the motor 3 is started, the output shaft of the motor 3 drives the rotating shaft 12 to rotate, the rotating shaft 12 drives the rotating wheel 13 to rotate, the rotating wheel 13 drives the rotating shaft 14 to make a circular motion, the rotating shaft 14 drives one end of the transmission rod 15 to rotate and make a circular motion, so that the other end of the transmission rod 15 rotates and drives one end of the first extrusion rod 11 to make a back-and-forth motion, the first extrusion rod 11 drives the extrusion block 16 to make a back-and-forth motion in the chute, meanwhile, the extrusion block 16 drives the rectangular slider 10 to make a back-and-forth motion in the slider groove through the first limiting rod 19, so that the rectangular slider 10 drives the second extrusion rod 17 to move, the second extrusion rod 17 drives the piston 18 to move, the organic tin in the second housing 2 can flow into the discharge pipe 7 through the first check valve 8 once the piston 18 moves back-and forth, and then is discharged through, when the amount of organic tin single addition needs to be adjusted, the fixing block 21 can be pulled first, the fixing block 21 drives the second limiting rod 20 to move and enables the spring 23 to deform, meanwhile, the first latch 24 is separated from the second latch 25, then the first limiting rod 19 is driven to move through the second limiting rod 20, the purpose of adjusting the organic tin single addition amount is achieved by adjusting the position of the first limiting rod 19, after the adjustment is completed, the spring 23 deforms and recovers to drive the second limiting rod 20 to reset, the second limiting rod 20 drives the fixing block 21 to reset, the first latch 24 is embedded with the second latch 25 again, and the first limiting rod 19 is further fixed.
The above descriptions are only preferred embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to, replaced or changed.
Claims (8)
1. An automatic adding device for organotin standard product production comprises a first shell (1) and is characterized in that a second shell (2) is fixedly installed in the first shell (1), a motor (3), a rectangular element (4) and a pneumatic tube (5) are fixedly installed on the inner wall of the bottom of the first shell (1), a first mounting hole is formed in the top of the first shell (1), a feeding tube (6) is fixedly installed in the first mounting hole, one end of the feeding tube (6) extends into the first shell (1) and is communicated with the top of the second shell (2), a second mounting hole is formed in the bottom of the first shell (1), a discharging tube (7) is fixedly installed in the second mounting hole, one end of the discharging tube (7) extends into the first shell (1) and is communicated with the bottom of the second shell (2), a first check valve (8) is fixedly installed at the top end of the discharging tube (7), the bottom fixed mounting of discharging pipe (7) has second check valve (9), the third mounting hole has been seted up to one side of discharging pipe (7), the one end fixed mounting of atmospheric pressure pipe (5) is in the third mounting hole, and the one end of atmospheric pressure pipe (5) has been seted up and has been met the air vent with discharging pipe (7), the slider groove has been seted up at the top of rectangle component (4), sliding block inslot slidable mounting has rectangle slider (10), rectangle slider (10) cooperatees with atmospheric pressure pipe (5), the one end slidable mounting of rectangle slider (10) has first pressure ram (11), first pressure ram (11) cooperate with motor (3).
2. The automatic adding device for the organotin standard production according to claim 1, characterized in that a rotating shaft (12) is welded on an output shaft of the motor (3), one end of the rotating shaft (12) is fixedly connected with a rotating wheel (13), one side of the rotating wheel (13) is fixedly connected with a rotating shaft (14), one end of a transmission rod (15) is rotatably sleeved on the outer side of the rotating shaft (14), and the other end of the transmission rod (15) is rotatably connected with one end of the first extrusion rod (11).
3. The automatic adding device for the organotin standard production according to claim 1, characterized in that the rectangular sliding block (10) is provided with a sliding groove, one end of the rectangular sliding block (10) is provided with a first sliding hole communicated with the sliding groove, the other end of the first extrusion rod (11) penetrates through the first sliding hole, extends into the sliding groove and is fixedly connected with an extrusion block (16), and the extrusion block (16) is slidably mounted in the sliding groove.
4. The automatic adding device for the organotin standard production according to claim 1, characterized in that a second slide hole is opened at the other end of the pneumatic tube (5), a second extrusion rod (17) is fixedly connected to the other end of the rectangular slider (10), and one end of the second extrusion rod (17) extends into the pneumatic tube (5) through the second slide hole and is fixedly connected with a piston (18).
5. The automatic adding device for the organotin standard production according to claim 1, characterized in that the top of the rectangular sliding block (10) is provided with a slide and a first slide which are communicated with the slide, the first slide and the slide are provided with a same first limiting rod (19) in a sliding manner, one end of the first limiting rod (19) is provided with a spring groove, a second limiting rod (20) is arranged in the spring groove in a sliding manner, and one end of the second limiting rod (20) extends to the outer side of the rectangular sliding block (10) and is fixedly connected with a fixing block (21).
6. The automatic adding device for the organotin standard production according to claim 5, wherein the two sides of the slide way are both provided with second sliding grooves, the two second sliding grooves are provided with the same limiting slide block (22) in a sliding manner, the limiting slide block (22) is provided with a fixing hole, and the first limiting rod (19) is fixedly arranged in the fixing hole.
7. The automatic adding device for the organotin standard production according to claim 5, characterized in that one end of the spring (23) is fixedly connected to the inner wall of one side of the spring groove, and the other end of the spring (23) is fixedly connected to the other end of the second limiting rod (20).
8. The automatic adding device for the organotin standard production according to claim 1, characterized in that a plurality of first latch teeth (24) are fixedly arranged at the top of the rectangular sliding block (10), a plurality of second latch teeth (25) are fixedly arranged at the bottom of the fixed block (21), and the second latch teeth (25) are matched with the first latch teeth (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020746039.9U CN212736629U (en) | 2020-05-08 | 2020-05-08 | Automatic adding device for production of organic tin standard product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020746039.9U CN212736629U (en) | 2020-05-08 | 2020-05-08 | Automatic adding device for production of organic tin standard product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212736629U true CN212736629U (en) | 2021-03-19 |
Family
ID=75003882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020746039.9U Active CN212736629U (en) | 2020-05-08 | 2020-05-08 | Automatic adding device for production of organic tin standard product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212736629U (en) |
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2020
- 2020-05-08 CN CN202020746039.9U patent/CN212736629U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An automatic adding device for the production of organotin standard Effective date of registration: 20220330 Granted publication date: 20210319 Pledgee: Bank of China Co.,Ltd. Nansha Branch of Guangdong Free Trade Pilot Area Pledgor: Guangzhou Jiatu Technology Co.,Ltd. Registration number: Y2022980003564 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230323 Granted publication date: 20210319 Pledgee: Bank of China Co.,Ltd. Nansha Branch of Guangdong Free Trade Pilot Area Pledgor: Guangzhou Jiatu Technology Co.,Ltd. Registration number: Y2022980003564 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An automatic adding device for the production of organic tin standards Effective date of registration: 20230329 Granted publication date: 20210319 Pledgee: Bank of China Co.,Ltd. Nansha Branch of Guangdong Free Trade Pilot Area Pledgor: Guangzhou Jiatu Technology Co.,Ltd. Registration number: Y2023440000039 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20210319 Pledgee: Bank of China Co.,Ltd. Nansha Branch of Guangdong Free Trade Pilot Area Pledgor: Guangzhou Jiatu Technology Co.,Ltd. Registration number: Y2023440000039 |