CN109850816B - Fork truck with automatic heat dissipation function - Google Patents
Fork truck with automatic heat dissipation function Download PDFInfo
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- CN109850816B CN109850816B CN201910257197.XA CN201910257197A CN109850816B CN 109850816 B CN109850816 B CN 109850816B CN 201910257197 A CN201910257197 A CN 201910257197A CN 109850816 B CN109850816 B CN 109850816B
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 30
- 230000006835 compression Effects 0.000 claims abstract description 53
- 238000007906 compression Methods 0.000 claims abstract description 53
- 238000003860 storage Methods 0.000 claims abstract description 37
- 230000005540 biological transmission Effects 0.000 claims abstract description 36
- 238000001816 cooling Methods 0.000 claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 230000026058 directional locomotion Effects 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 34
- 238000002955 isolation Methods 0.000 claims description 32
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Battery Mounting, Suspending (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention relates to the technical field of forklift production, in particular to a forklift with an automatic heat dissipation function, which comprises a frame, a power mechanism and a power storage device, wherein the power storage device comprises a case and a cooling mechanism, the cooling mechanism comprises an airflow channel A, an airflow channel B and a control assembly, and the control assembly is used for controlling the opening and closing of the airflow channel A and the airflow channel B and simultaneously carrying out airflow exchange between the inside and the outside of the case; the control assembly comprises a compression part and a transmission part, and the transmission part pushes the directional movement through the goods loaded on the frame and simultaneously drives the compression part to discharge hot air in the case; when in loading, the goods push the compression component to extrude hot air flow out of the case in an active heat dissipation mode; after unloading, the external air of the case is absorbed into the case through the elastic reset characteristic of the transmission part, so that the quick air flow conversion before and after the storage battery load is realized, and the problem of low heat dissipation efficiency of the storage battery load state in the prior art is solved.
Description
Technical Field
The invention relates to the technical field of forklift production, in particular to a forklift with an automatic heat dissipation function.
Background
At present, in the field of electric forklifts, storage batteries are mostly placed through battery packs with air holes, and heat dissipation is performed in the use process of the storage batteries; the conventional electric forklift is small in rated load and is mostly used in low-strength working condition occasions. Because of the restriction of use place and operating mode, battery box protection level is low, generally adopts natural cooling's mode, and the radiating efficiency is low, and the heat can not in time be discharged, influences corresponding components and parts life and performance, can not satisfy high strength, long-time operation requirement. Along with the appearance of large-tonnage electric forklifts and high-strength operation working conditions, the battery capacity is also gradually increased, so that the battery heat dissipation under a load state has higher requirements.
Chinese patent: 2014204459089 discloses a battery box assembly for an electric forklift, comprising: a battery case; and the heat conducting piece is connected with the battery box body and comprises an inner box part positioned in the battery box body and an outer box part positioned outside the battery box body. Through the addition of the heat conducting member comprising the inside and the outside of the box, the heat in the battery box body is transferred to the outside of the battery box body by the heat conducting member.
According to the technical scheme, the heat conducting piece is arranged, and the heat conducting piece transfers heat in the battery box body to the outside of the battery box body; because the heat conducting piece in the technical scheme is of the radiating fin structure, the radiating efficiency is determined by the material of the heat conducting piece, the heat conducting piece is passively radiated, and the working condition with large heat is difficult to meet, so the technical scheme has the problem of low radiating efficiency of the storage battery in a load state.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a forklift with an automatic heat dissipation function, wherein when in loading, hot air flow is extruded out of a case in an active heat dissipation mode by pushing a compression assembly through goods; after unloading, the external air of the case is absorbed into the case through the elastic reset characteristic of the transmission part, so that the quick air flow conversion before and after the storage battery load is realized, and the problem of low heat dissipation efficiency of the storage battery load state in the prior art is solved.
In order to solve the technical problem, a forklift with an automatic heat dissipation function is provided, which comprises a frame, a power mechanism and a power storage device for driving the power mechanism to operate, wherein the power storage device comprises:
a chassis; the case is used for placing a storage battery;
the cooling mechanism is used for cooling the storage battery in the case, and comprises an airflow channel A, an airflow channel B and a control assembly, wherein the airflow channel A and the airflow channel B are arranged on the case, and the control assembly is used for controlling the opening and closing of the airflow channel A and the airflow channel B and simultaneously exchanging the airflow inside and outside the case; the control assembly comprises a compression part and a transmission part, and the transmission part drives the compression part to discharge hot air in the case while pushing the directional movement through goods loaded on the frame.
The airflow channels A are symmetrically arranged on two sides of the case, and the airflow channels B are arranged on the top of the case.
In addition, the cooling mechanism is arranged on the frame and positioned outside the pins on the frame, and the transmission part penetrates through the frame and extends to the upper part of the pins;
when the goods are loaded, the transmission part pushes the compression part to move while moving directionally through the goods.
As an improvement, the compression part is arranged in the case in a sliding and sealing manner along the horizontal direction, the compression part comprises a compression plate, an isolation net, a closing plate A and a closing plate B, the compression plate is of a flat plate structure, the isolation net is of a filter screen structure, the compression plate and the isolation net are arranged in parallel along the vertical direction and are elastically connected with each other, and the storage battery is arranged between the compression plate and the isolation net and is positioned right below the airflow channel A; the transmission part pushes the compression plate to move directionally so as to compress and discharge hot air in the case.
The sealing plates A and the sealing plates B are respectively used for controlling the opening and closing of the airflow channel A and the airflow channel B, the sealing plates A and the airflow channel B are respectively arranged on two sides of the isolation net, the sealing plates A are arranged in a symmetrical structure and fixedly connected with the isolation net, and the sealing plates A are driven by the isolation net to close the airflow channel A and then drive the sealing plates B to open the airflow channel B.
As an improvement, the compression part further comprises a hydraulic transmission part connecting the sealing plate B and the isolation net, the hydraulic transmission part comprises an oil path fixedly arranged at the top of the case, and a piston a and a piston B fixedly arranged on the sealing plate B and the isolation net respectively along the horizontal direction, and the piston a and the piston B are respectively arranged at two ends of the oil path in a sealing and sliding manner.
As an improvement, the transmission part comprises a sliding rod, a reset spring and a bearing block, the sliding rod penetrates through the case and is arranged on the frame in a sliding manner along the horizontal direction, the compression part and the bearing block are respectively fixedly connected with two ends of the sliding rod, and the bearing block is positioned outside the case; the reset spring is used for driving the bearing block to reset, and the reset spring is located outside the case and sleeved on the sliding rod.
The invention has the beneficial effects that:
(1) according to the invention, different heat dissipation modes of the storage battery in a load state and an idle state are realized through the special structural arrangement of the cooling mechanism; when the storage battery is in no-load, the interior of the case is communicated with the outside through the airflow channel A, so that the free heat dissipation of the storage battery is realized; when the storage battery is loaded, the goods push the transmission part to compress the space between the compression part and the case, and simultaneously the airflow channel B above the storage battery is opened, and the quick heat dissipation of the storage battery in a loaded state is realized by combining the rising and the moving away of hot airflow; the problem of battery load state radiating efficiency low that exists among the prior art is solved.
(2) According to the invention, through the connection arrangement of the transmission part and the compression part and the reciprocating motion mode of the control assembly, after the forklift is unloaded, the transmission part drives the compression plate to reset in the quick resetting process driven by the reset spring, so that the space between the compression plate and the case is quickly enlarged, a negative pressure state is formed between the compression plate and the case, air outside the case is adsorbed into the case, the storage battery is further subjected to heat dissipation treatment, and the heat dissipation effect of the invention is further improved.
In conclusion, the invention has the advantages of reasonable structure, high heat dissipation efficiency, stable performance and the like; in particular to a forklift with an automatic heat dissipation function.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a front cross-sectional view of a power storage device;
FIG. 3 is one of the state diagrams of the power storage device;
FIG. 4 is a top cross-sectional view of the power storage device;
FIG. 5 is an enlarged partial sectional view of the hydraulic transmission member;
FIG. 6 is a second state diagram of the power storage device.
Detailed Description
The technical scheme in the embodiment of the invention is clearly and completely explained by combining the attached drawings.
Example one
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
As shown in fig. 1 to 3, a forklift with an automatic heat dissipation function includes a frame 1, a power mechanism 2, and a power storage device 3 for driving the power mechanism 2 to operate, where the power storage device 3 includes:
a case 4; the case 4 is used for placing a storage battery 10;
the cooling mechanism 5 is used for cooling the storage battery 10 in the chassis 4, the cooling mechanism 5 includes an airflow channel a51, an airflow channel B52 and a control module 53 which are opened in the chassis 4, the airflow channel a51 and the airflow channel B52 are opened in the chassis 4, and the control module 53 is used for controlling the opening and closing of the airflow channel a51 and the airflow channel B52 and exchanging airflow inside and outside the chassis 4; the control assembly 53 comprises a compression part 531 and a transmission part 532, the transmission part 532 drives the compression part 531 to discharge hot air in the case 4 while being pushed and moved by the cargo 20 loaded on the frame 1; in this embodiment, the compressing portion 531 and the transmission portion 532 are both disposed on the chassis 4 in a sliding manner along the horizontal direction.
As shown in fig. 2 to 4, the airflow channels a51 are symmetrically disposed on two sides of the chassis 4, and the airflow channel B52 is disposed on the top of the chassis 4; in the embodiment, different heat dissipation modes are realized in the battery loading state and the no-load state through the arrangement of the air flow channel A51 and the air flow channel B52; in the battery load state, by opening the air flow path B52, the heat in the enclosure 4 is quickly exhausted in a squeezing manner through the air flow path B52 via the control unit 53.
In addition, as shown in fig. 1 and 2, the cooling mechanism 5 is disposed on the frame 1 and outside the plug pin 11 on the frame 1, and the transmission part 532 extends through the frame 1 to above the plug pin 11;
when the goods are loaded, the transmission part 532 drives the compression part 531 to move while pushing the directional movement through the goods 20.
Example two
As shown in fig. 2 and 3, in which the same or corresponding components as in the first embodiment are denoted by the same reference numerals as in the first embodiment, only the points of difference from the first embodiment will be described below for the sake of convenience; the second embodiment is different from the first embodiment in that: the compression part 531 is arranged in the case 4 in a sliding and sealing manner along the horizontal direction, the compression part 531 comprises a compression plate 5311, an isolation net 5312, a sealing plate a5313 and a sealing plate B5314, the compression plate 5311 is of a flat plate structure, the isolation net 5312 is of a filter screen structure, the compression plate 5311 and the isolation net 5312 are arranged in parallel along the vertical direction and are elastically connected with each other, and the storage battery 10 is arranged between the compression plate 5311 and the isolation net 5312 and is positioned right below the air flow channel a 51; the transmission part 532 pushes the compression plate 5311 to move directionally so as to compress and discharge hot air in the case 4; in this embodiment, the compression plate 5311 and the isolation net 5312 are driven by a link structure sleeved with a spring, the compression plate 5311 drives the link to move and simultaneously pushes the spring to drive the isolation net 5312, and after the isolation net 5312 moves to a certain position, the compression plate 5311 compresses the spring to further reduce the space between the compression plate 5311 and the chassis 3.
As shown in fig. 2 to 4, the sealing plate a5313 and the sealing plate B5314 are respectively used for controlling the opening and closing of the air flow channel a51 and the air flow channel B52, and are respectively disposed at two sides of the isolation net 5312, the sealing plates a5313 are symmetrically disposed and fixedly connected to the isolation net 5312, and the isolation net 5312 drives the sealing plate a5313 to close the air flow channel a51 and then drives the sealing plate B5314 to open the air flow channel B52; in this embodiment, by closing the air flow path a51, the compression plate 5311 can quickly form pressure when pressing air in the enclosure 4, thereby improving heat dissipation efficiency of air in the enclosure 4.
Further, as shown in fig. 2 and 5, the compressing portion 531 further includes a hydraulic transmission member 5315 connecting the sealing plate B5314 and the isolation net 5312, the hydraulic transmission member 5315 includes an oil path 53151 fixedly disposed on the top of the case 4, and a piston a53152 and a piston B53153 fixedly disposed on the sealing plate B5314 and the isolation net 5312 along the horizontal direction, respectively, and the piston a53152 and the piston B53153 are respectively disposed at two ends of the oil path 53151 in a sealing and sliding manner; in this embodiment, the isolation net 5312 drives the sealing plate B5314 to move synchronously through the transmission member 5315, and the liquid grease filled in the oil path 53151 lubricates the piston a53152 and the piston B53153 and cools the inner space of the case 4, thereby further improving the cooling efficiency of the present invention.
Further, as shown in fig. 1, 3 and 6, the transmission portion 532 includes a sliding rod 5321, a return spring 5322 and a bearing block 5323, the sliding rod 5321 passes through the chassis 4 and is slidably disposed on the frame 1 along a horizontal direction, the compression portion 531 and the bearing block 5323 are respectively fixedly connected to two ends of the sliding rod 5321, and the bearing block 5323 is located outside the chassis 4; the reset spring 5322 is used for driving the bearing block 5323 to reset, and the reset spring 5322 is located outside the case 4 and sleeved on the sliding rod 5321; in this embodiment, the number of the sliding rods 5321 is two and is set up as a cylinder structure; after the goods are unloaded, the transmission part 532 drives the compression plate 5311 to reset under the action of the elastic force of the reset spring 5322, so that the space between the compression plate 5311 and the case 4 is rapidly increased, air outside the case 4 is absorbed into the case 4 in the resetting process of the compression plate 5311, and the cooling efficiency of the storage battery 10 is further improved.
In the present invention, it is to be understood that: the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in an orientation or positional relationship indicated in the drawings for convenience and simplicity of description only and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art under the technical teaching of the present invention, such as pushing the compression assembly to extrude the hot air out of the machine case in an active heat dissipation manner by the cargo when the compressor is loaded; after unloading, the design concept of absorbing the air outside the case into the case through the elastic reset characteristic of the transmission part to realize the rapid air flow conversion before and after the load of the storage battery is covered in the protection scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. The utility model provides a fork truck with automatic heat dissipation function, includes frame (1), power unit (2) and drives this power unit (2) moving power storage device (3), its characterized in that, power storage device (3) include:
a chassis (4); the case (4) is used for placing a storage battery (10);
the cooling mechanism (5) is used for cooling the storage battery (10) in the case (4), the cooling mechanism (5) comprises an airflow channel A (51), an airflow channel B (52) and a control assembly (53), the airflow channel A (51) and the airflow channel B (52) are arranged on the case (4), and the control assembly (53) is used for controlling the opening and closing of the airflow channel A (51) and the airflow channel B (52) and simultaneously exchanging the airflow inside and outside the case (4); the control assembly (53) comprises a compression part (531) and a transmission part (532), and the transmission part (532) pushes the directional movement through the goods (20) loaded on the frame (1) and simultaneously drives the compression part (531) to discharge hot air in the case (4).
2. The forklift with the automatic heat dissipation function according to claim 1, wherein the airflow channels a (51) are symmetrically arranged on both sides of the chassis (4), and the airflow channels B (52) are arranged on the top of the chassis (4).
3. The forklift with automatic heat dissipation function according to claim 1, wherein the cooling mechanism (5) is provided on the frame (1) outside the pins (11) on the frame (1), and the transmission part (532) extends through the frame (1) to above the pins (11);
when the goods are loaded, the transmission part (532) pushes the directional movement through the goods (20) and simultaneously drives the compression part (531) to move.
4. The forklift with the automatic heat dissipation function according to claim 1, wherein the compression part (531) is arranged in the chassis (4) in a sliding and sealing manner in a horizontal direction, the compression part (531) comprises a compression plate (5311), an isolation net (5312), a closing plate A (5313) and a closing plate B (5314), the compression plate (5311) is of a flat plate structure, the isolation net (5312) is of a filter screen structure, the compression plate (5311) and the isolation net (5312) are arranged in parallel in a vertical direction and are elastically connected with each other, the storage battery (10) is arranged between the compression plate (5311) and the isolation net (5312) and is located right below the air flow channel A (51), and hot air in the chassis (4) is compressed and discharged by pushing the compression plate (5311) to move directionally through the transmission part (532).
5. The forklift with the automatic heat dissipation function according to claim 4, wherein the sealing plate A (5313) is used for controlling opening and closing of the airflow channel A (51), the sealing plate B (5314) is used for controlling opening and closing of the airflow channel B (52), the sealing plate A (5313) is arranged on one side of the isolation net (5312), the sealing plate B (5314) is arranged on the other side of the isolation net (5312), the sealing plates A (5313) are arranged in a symmetrical structure and fixedly connected with the isolation net (5312), and the isolation net (5312) drives the sealing plate A (5313) to close the airflow channel A (51) and then drives the sealing plate B (5314) to open the airflow channel B (52).
6. The forklift with the automatic heat dissipation function according to claim 4, wherein the compression part (531) further comprises a hydraulic transmission member (5315) connecting the sealing plate B (5314) and the isolation net (5312), the hydraulic transmission member (5315) comprises an oil path (53151) fixedly arranged at the top of the chassis (4), a piston A (53152) fixedly arranged on the sealing plate B (5314) along the horizontal direction, and a piston B (53153) fixedly arranged on the isolation net (5312) along the horizontal direction, the piston A (53152) is arranged at one end of the oil path (53151) in a sealing and sliding manner, and the piston B (53153) is arranged at the other end of the oil path (53151) in a sealing and sliding manner.
7. The forklift with the automatic heat dissipation function according to claim 1, wherein the transmission portion (532) includes a sliding rod (5321), a return spring (5322) and a bearing block (5323), the sliding rod (5321) passes through the chassis (4) and is slidably disposed on the frame (1) along a horizontal direction, the compression portion (531) is fixedly connected with one end of the sliding rod (5321), the bearing block (5323) is fixedly connected with the other end of the sliding rod (5321), and the bearing block (5323) is located outside the chassis (4); the reset spring (5322) is used for driving the bearing block (5323) to reset, and the reset spring (5322) is located outside the case (4) and sleeved on the sliding rod (5321).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910257197.XA CN109850816B (en) | 2019-04-01 | 2019-04-01 | Fork truck with automatic heat dissipation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910257197.XA CN109850816B (en) | 2019-04-01 | 2019-04-01 | Fork truck with automatic heat dissipation function |
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| Publication Number | Publication Date |
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| CN109850816A CN109850816A (en) | 2019-06-07 |
| CN109850816B true CN109850816B (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910257197.XA Active CN109850816B (en) | 2019-04-01 | 2019-04-01 | Fork truck with automatic heat dissipation function |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001187700A (en) * | 1999-12-28 | 2001-07-10 | Komatsu Forklift Co Ltd | Battery forklift |
| CN1796173A (en) * | 2004-12-29 | 2006-07-05 | 斗山英维高株式会社 | Engine-driven vehicle cooling device |
| JP2008062853A (en) * | 2006-09-08 | 2008-03-21 | Mitsubishi Heavy Ind Ltd | Hybrid type cargo vehicle |
| JP2014058242A (en) * | 2012-09-18 | 2014-04-03 | Toyota Industries Corp | Industrial vehicle |
| CN204102970U (en) * | 2014-08-07 | 2015-01-14 | 比亚迪股份有限公司 | For the battery box component of electri forklift |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100494936B1 (en) * | 2003-06-30 | 2005-06-13 | 현대자동차주식회사 | Air duct for battery cooling apparatus of electric vehicle |
-
2019
- 2019-04-01 CN CN201910257197.XA patent/CN109850816B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001187700A (en) * | 1999-12-28 | 2001-07-10 | Komatsu Forklift Co Ltd | Battery forklift |
| CN1796173A (en) * | 2004-12-29 | 2006-07-05 | 斗山英维高株式会社 | Engine-driven vehicle cooling device |
| JP2008062853A (en) * | 2006-09-08 | 2008-03-21 | Mitsubishi Heavy Ind Ltd | Hybrid type cargo vehicle |
| JP2014058242A (en) * | 2012-09-18 | 2014-04-03 | Toyota Industries Corp | Industrial vehicle |
| CN204102970U (en) * | 2014-08-07 | 2015-01-14 | 比亚迪股份有限公司 | For the battery box component of electri forklift |
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| CN109850816A (en) | 2019-06-07 |
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Effective date of registration: 20231206 Address after: Room 2202, 22 / F, Wantong building, No. 3002, Sungang East Road, Sungang street, Luohu District, Shenzhen City, Guangdong Province Patentee after: Shenzhen dragon totem technology achievement transformation Co.,Ltd. Address before: 230000 floor 1, building 2, phase I, e-commerce Park, Jinggang Road, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee before: Dragon totem Technology (Hefei) Co.,Ltd. Effective date of registration: 20231206 Address after: 230000 floor 1, building 2, phase I, e-commerce Park, Jinggang Road, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee after: Dragon totem Technology (Hefei) Co.,Ltd. Address before: 313000 East Second Ring Road 759, Huzhou City, Wuxing District, Huzhou City, Zhejiang Province Patentee before: HUZHOU TEACHERS College |
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Effective date of registration: 20240405 Address after: 071199 Dong Lu Village, Dong Lu Township, Qingyuan District, Baoding, Hebei Patentee after: Baoding Chendiao Hoisting Machinery Manufacturing Co.,Ltd. Country or region after: China Address before: Room 2202, 22 / F, Wantong building, No. 3002, Sungang East Road, Sungang street, Luohu District, Shenzhen City, Guangdong Province Patentee before: Shenzhen dragon totem technology achievement transformation Co.,Ltd. Country or region before: China |