CN102275477B - Semitrailer hanger, semitrailer and assembly method of semitrailer - Google Patents
Semitrailer hanger, semitrailer and assembly method of semitrailer Download PDFInfo
- Publication number
- CN102275477B CN102275477B CN201010212789.9A CN201010212789A CN102275477B CN 102275477 B CN102275477 B CN 102275477B CN 201010212789 A CN201010212789 A CN 201010212789A CN 102275477 B CN102275477 B CN 102275477B
- Authority
- CN
- China
- Prior art keywords
- wheelbase
- adjustment
- assembly method
- axletree
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 33
- 239000000725 suspension Substances 0.000 claims description 17
- 238000007689 inspection Methods 0.000 claims description 12
- 230000037361 pathway Effects 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Landscapes
- Vehicle Body Suspensions (AREA)
Abstract
The invention discloses a semitrailer hanger, a semitrailer with same and an assembly method of the semitrailer. The semitrailer hanger comprises an adjustable connecting rod used for adjusting an axle distance, the adjustable connecting rod comprises a connecting rod, two connecting rod heads and two fastening bolts, and a limiting plate for fixing the distance between the two fastening bolts is detachably arranged on the two fastening bolts. In the invention, by using the limiting plate to make the effective length of the adjustable connecting rod constant, the possibility that the axle distance changes due to loosening of the fastening bolts of the connecting rod is avoided, and thus, the problem of tire loss of the semitrailer is solved.
Description
Technical field
The present invention relates to superimposed trailer technical field, relate in particular to a kind of semi-trailer suspension, there is the assembly method of superimposed trailer and the described superimposed trailer of this semi-trailer suspension.
Background technology
In prior art, it is the ubiquitous failure problems of superimposed trailer that superimposed trailer is eaten tire.Generation superimposed trailer is eaten tire may many reasons, and wheelbase problem is to cause superimposed trailer to eat the major reason of tire.
Existing superimposed trailer production technology, axletree is connected with car body, adopt a side stationary links one side adjustable connecting-rod to connect, by adjustable connecting-rod, the position dimension of axletree is adjusted, diaxon superimposed trailer as shown in Figure 1, guarantee to be formed centrally equicrural triangle in the two ends of front axle and towing pin, and guarantee that the front axle of superimposed trailer both sides and the wheelbase of rear axle equate, i.e. C=D.For three axle superimposed trailers, guarantee to be formed centrally equicrural triangle in the two ends of front axle and towing pin, and guarantee that superimposed trailer both sides axis equates with the wheelbase of front axle, rear axle equates with the wheelbase of axis.
Existing adjustable connecting-rod is comprised of connecting rod, top of connecting rod and top of connecting rod tight fixed bolt, between connecting rod two ends and corresponding top of connecting rod for being threaded, pivot link changes the distance between two top of connecting rods, after arriving required separation distance, by tight fixed bolt, tighten that two top of connecting rods are fixed on connecting rod, rely on the screw thread friction force on top of connecting rod and connecting rod to prevent that connecting rod from rotating.But in superimposed trailer driving process, vibrations because of long-term drag and in travelling cause that tight fixed bolt is loosening, the screw thread friction force on top of connecting rod and connecting rod diminishes, cause connecting rod to rotate, thereby wheelbase is changed, in trailer car tyre driving process, there will be the problem that departs from tractor truck travel direction, cause and eat tire phenomenon.Therefore need to research and develop a kind of adjustable connecting-rod and adjust superimposed trailer and the superimposed trailer assembly method that rear linking rod effective length can not change.
Summary of the invention
Object of the present invention is for providing a kind of semi-trailer suspension, the technical matters of eating tire to solve the superimposed trailer existing in prior art.
Object of the present invention is for providing the superimposed trailer with semi-trailer suspension of the present invention, the technical matters of eating tire to solve the superimposed trailer existing in prior art.
Another object of the present invention is for providing a kind of assembly method of superimposed trailer of the present invention, the technical matters of eating tire to solve the superimposed trailer existing in prior art.
For achieving the above object, technical scheme of the present invention is as follows:
A kind of semi-trailer suspension, described semi-trailer suspension comprises the adjustable connecting-rod for adjusting shaft distance, described adjustable connecting-rod comprises connecting rod, two top of connecting rods and two tight fixed bolts, and on described two tight fixed bolts, detouchable is equiped with the positioning plate for distance between fixing described two tight fixed bolts.
Semi-trailer suspension of the present invention, preferred, on described positioning plate, be drilled with two bolts hole, described two tight fixed bolts are connected in described two top of connecting rods through after described two bolts hole respectively.
A kind of superimposed trailer, has semi-trailer suspension of the present invention.
The assembly method of superimposed trailer of the present invention, comprises step: step S1: after tire has assembled, carry out the wheelbase adjustment of described superimposed trailer; Step S2: assemble after complete and pathway examination at car load, carry out the wheelbase inspection adjustment of described superimposed trailer; Step S3: after wheelbase meets the requirements, install positioning plate to fix the spacing of described two tight fixed bolts by detouchable on two tight fixed bolts of the adjustable connecting-rod at each axletree.
The assembly method of superimposed trailer of the present invention, preferred, in step S3, the step of mounting limit plate comprises: the spacing of measuring two tight fixed bolts of each axle adjustable connecting-rod; By described spacing, on positioning plate, bore two bolts hole; Described two tight fixed bolts are connected with described top of connecting rod through after described two bolts hole.
The assembly method of superimposed trailer of the present invention, preferably, before the described wheelbase adjustment of step S1 and the described wheelbase inspection adjustment of step S2, by hydraulic trolley by described superimposed trailer car body certain number of times that rises and falls, then on level ground by vehicle forward, backward along rectilinear movement repeatedly, and last described movement is movement forward, to guarantee the needing region of interest of adjusting not in killing shape.
The assembly method of superimposed trailer of the present invention, preferably, in the described wheelbase adjustment of step S1 and the described wheelbase of step S2, check in adjustment process, when moving forward and backward the position of axletree by the connecting rod that turns adjustable connecting-rod, first make the axletree that will adjust move a certain distance backward, then make described axletree arrive forward the target location that axletree is adjusted, so that the state of associated components in tension.
The assembly method of superimposed trailer of the present invention, preferred, carry out after the described wheelbase adjustment of step S1 or the described wheelbase inspection adjustment of step S2, axle centerline is less than or equal to 6mm to vehicle frame centerline deviation.
The assembly method of superimposed trailer of the present invention, preferably, carry out after the described wheelbase adjustment of step S1 or the described wheelbase inspection adjustment of step S2, described front axle two ends is less than or equal to 3mm apart from the range difference of towing pin, and axletree two end axles is less than or equal to 1.5mm apart from poor absolute value.
The assembly method of superimposed trailer of the present invention, preferred, described superimposed trailer is three axle superimposed trailers, described axletree two end axles comprises that apart from poor the front axle of described three axle superimposed trailers and the two end axles of axis, axis and rear axle are apart from poor.
Beneficial effect of the present invention is, semi-trailer suspension of the present invention, superimposed trailer of the present invention and described superimposed trailer assembly method, positioning plate by installing on two tight fixed bolts for distance between fixing described two tight fixed bolts, can realize adjustable connecting-rod and adjust the changeless effect of connecting rod effective length afterwards.By positioning plate, adjustable connecting-rod effective length is immobilized, avoided causing because connecting rod tight fixed bolt is loosening the possibility of wheelbase variation, thereby solve superimposed trailer, eat tire, sideslip problem.The present invention is simple in structure, be skillfully constructed, result of use is outstanding, good in economic efficiency.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that existing semitrailer wheel space is adjusted.
Fig. 2 is the positioning plate scheme of installation of the semi-trailer suspension of the embodiment of the present invention.
The specific embodiment
The exemplary embodiments that embodies feature & benefits of the present invention will describe in detail in the following description.Be understood that the present invention can have various variations on different embodiment, it neither departs from the scope of the present invention, and explanation wherein and accompanying drawing be when the use that explain in itself, but not in order to limit the present invention.
The superimposed trailer of the embodiment of the present invention, has semi-trailer suspension of the present invention.The superimposed trailer of the embodiment of the present invention, assembles by means of assembly method of the present invention.
As shown in Figure 2, the semi-trailer suspension of the embodiment of the present invention, mainly comprise: can be welded in front frame 21, medium-height trestle 22, after poppet 23 on semitrailer crossbeam 1, be installed on the equalizing bar 24 in medium-height trestle 22, and be movably installed in respectively between front frame 21 and equalizing bar 24 steel plate spring assembly 25, after poppet 21 and equalizing bar 24 between steel plate spring assembly 26.Front axle 8 and the rear axle 9 (semi-trailer suspension of the present invention that is connected with steel plate spring assembly 25,26 respectively, type of attachment between steel plate spring assembly and axletree is not limited to the type of attachment shown in Fig. 2), connecting rod 5 is connected between the pitman shaft 3 of front frame and the backing plate 27 of front axle 8.
The common formation adjustable connecting-rod of connecting rod 5, top of connecting rod 41,42 and tight fixed bolt 71,72, can adjust the position dimension of front axle 8; In Fig. 2, the connecting rod 10 between rear axle 9 and medium-height trestle 24 is stationary links, for the position dimension of rear axle, adjusts, and need be adjusted in the corresponding adjustable connecting-rod structure that connecting rod 10 offsides (with respect to superimposed trailer vehicle body) arrange.Certainly, the adjustable connecting-rod of front axle, rear axle also can be arranged on the same side of superimposed trailer.
As shown in Figure 2, the top of connecting rod 41 at connecting rod 5 and its two ends, between 42, be and be threaded, pivot link 5 can change top of connecting rod 41, distance between 42, thereby change the effective length of adjustable connecting-rod, and be about to tight fixed bolt 71 after arriving required effective length, 72 tighten with top of connecting rod 41, 42 are fixed on connecting rod 5, different from prior art semi-trailer suspension is, after above-mentioned adjustment process finishes, the tight fixed bolt 71 at connecting rod 5 two ends of semi-trailer suspension of the present invention, on 72, positioning plate 6 is established in immediate shipment, on positioning plate 6 corresponding to tight fixed bolt 71, 72 position offers bolt hole, tight fixed bolt 71, 72 are tightened in top of connecting rod 41 through after described two bolts hole respectively, on 42, the effect of positioning plate 6 is in order to fixing tight fixed bolt 71, distance between 72, and then can realize corresponding axis apart from adjusting the changeless effect of connecting rod 5 effective length afterwards, avoided because of tight fixed bolt 71 or tight fixed bolt 72 loosening, or both are the loosening possibility that causes wheelbase to change simultaneously, thereby solve superimposed trailer and eat tire, sideslip problem.Meanwhile, positioning plate 6 is again detouchable, so, at superimposed trailer, use after the some time, in the time of need to adjusting wheelbase, pull down positioning plate 6, i.e. practicable wheelbase adjustment.
Introduce the superimposed trailer assembly method of the embodiment of the present invention below.
Simply, the superimposed trailer assembly method of the embodiment of the present invention, comprises three phases: the wheelbase inspection adjustment after wheelbase adjustment, road examination in car load fitting process and the installation of positioning plate.
Wherein, the wheelbase adjusting stage in the car load fitting process of first stage, carry out installing after tire.Second stage, is to assemble complete way of escape examination at car load, after the examination of road, reexamines adjustment wheelbase.And first stage guarantees with wheelbase method of adjustment, the state of second stage and parameter request etc. can be identical, is simply described below:
Before carrying out the wheelbase adjustment of first stage and the wheelbase inspection of second stage adjustment, guarantee to need the region of interest of adjusting not in " killing state ", with the validity that guarantees that wheelbase is adjusted.For guaranteeing that region of interest is not in " killing state ", can adopt following method: by hydraulic trolley for example, by the superimposed trailer car body certain number of times (three times) that rises and falls, then on level ground by vehicle forward, backward for example, along rectilinear movement repeatedly (three times, five times), and determine that last movement is movement forward, to guarantee the needing region of interest of adjusting not in the state of killing.
Guaranteeing above-mentioned state in the situation that, then carrying out wheelbase while adjusting, needing to discharge the brake of vehicle, comprising service brake and braking during standstill.
When carrying out the wheelbase adjustment of first stage and the wheelbase inspection of second stage adjustment, by turning the connecting rod 5 of adjustable connecting-rod, move forward and backward axletree and (comprise front axle and the rear axle of diaxon superimposed trailer, front axle, axis and the rear axle of three axle superimposed trailers) position, in this step, to first make the axletree that will adjust move a certain distance backward, then make axletree arrive forward assigned address (being the target location that axletree is adjusted), the object of doing is like this to make the state of associated components in tension.
As shown in Figure 1, through above-mentioned adjustment, need to reach following parameter request: as shown in Figure 1, make the range difference A-B≤3mm of axletree (being mainly front axle) two ends apart from towing pin, axletree two end axles is apart from absolute value≤1.5mm (if three axle superimposed trailers of poor C-D, axis and rear axle two end axles, apart from poor herewith requirement, also require its absolute value to be less than 1.5mm).As shown in Figure 1, the longitudinal centerline (long and short dash line) in Fig. 1 is vehicle frame line of centers, and the solid line of its top is axle centerline, requires the distance≤6mm of described two line of centerss, is also that axle centerline is to vehicle frame centerline deviation≤6mm.In the situation that meeting these parameters, can illustrate that wheelbase meets the requirements.Above parameter request also can be according to actual needs or the variation of respective standard (as national standard, industry standard etc.) and adjusting.
After each wheelbase meets the requirements on inspection, measure distance between each axletree adjustable connecting-rod two tight fixed bolts, the for example distance between tight fixed bolt 71 and tight fixed bolt 72 in Fig. 2, and by the boring on positioning plate 6 of this distance, positioning plate 6 is arranged on to tight fixed bolt 71, on 72, by connecting rod 5 and top of connecting rod 41, 42 stressing conditions is from relying on screw thread friction force to guarantee that relative position becomes the pulling force bringing with positioning plate and guarantees relative position, guaranteed that adjustable connecting-rod adjusts rear linking rod effective length and can not change, trailer car tyre travels without departing from tractor truck travel direction phenomenon, thereby solve superimposed trailer and eat tire, sideslip problem.
Technical scheme of the present invention is disclosed as above by preferred embodiment.Those skilled in the art should recognize change and the retouching in the case of not departing from, the scope and spirit of the present invention that the appended claim of the present invention discloses, done, within all belonging to the protection domain of claim of the present invention.
Claims (6)
1. the assembly method of a superimposed trailer, the semi-trailer suspension of described superimposed trailer comprises the adjustable connecting-rod for adjusting shaft distance, described adjustable connecting-rod comprises connecting rod, two top of connecting rods and two tight fixed bolts, on described two tight fixed bolts, detouchable is equiped with the positioning plate for distance between fixing described two tight fixed bolts, it is characterized in that, described assembly method comprises step:
Step S1: after tire has assembled, carry out the wheelbase adjustment of described superimposed trailer;
Step S2: assemble after complete and pathway examination at car load, carry out the wheelbase inspection adjustment of described superimposed trailer;
Step S3: after wheelbase meets the requirements, install positioning plate to fix the spacing of described two tight fixed bolts by detouchable on two tight fixed bolts of the adjustable connecting-rod at each axletree;
In the described wheelbase adjustment of step S1 and the described wheelbase of step S2, check in adjustment process, when moving forward and backward the position of axletree by the connecting rod that turns adjustable connecting-rod, first make the axletree that will adjust move a certain distance backward, then make described axletree arrive forward the target location that axletree is adjusted, so that the state of associated components in tension.
2. assembly method as claimed in claim 1, is characterized in that, in step S3, the step of mounting limit plate comprises:
Measure the spacing of two tight fixed bolts of each axle adjustable connecting-rod;
By described spacing, on positioning plate, bore two bolts hole;
Described two tight fixed bolts are connected with described top of connecting rod through after described two bolts hole.
3. assembly method as claimed in claim 1 or 2, it is characterized in that, before the described wheelbase adjustment of step S1 and the described wheelbase inspection adjustment of step S2, by hydraulic trolley by described superimposed trailer car body certain number of times that rises and falls, then on level ground by vehicle forward, backward along rectilinear movement repeatedly, and last described movement is movement forward, to guarantee the needing region of interest of adjusting not in killing shape.
4. assembly method as claimed in claim 1, is characterized in that, carries out after the described wheelbase adjustment of step S1 or the described wheelbase inspection adjustment of step S2, and axle centerline is less than or equal to 6mm to vehicle frame centerline deviation.
5. assembly method as claimed in claim 4, it is characterized in that, carry out after the described wheelbase adjustment of step S1 or the described wheelbase inspection adjustment of step S2, the front axle two ends of described superimposed trailer is less than or equal to 3mm apart from the range difference of towing pin, and axletree two end axles is less than or equal to 1.5mm apart from poor absolute value.
6. assembly method as claimed in claim 5, is characterized in that, described superimposed trailer is three axle superimposed trailers, and described axletree two end axles comprises that apart from poor the front axle of described three axle superimposed trailers and the two end axles of axis, axis and rear axle are apart from poor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010212789.9A CN102275477B (en) | 2010-06-12 | 2010-06-12 | Semitrailer hanger, semitrailer and assembly method of semitrailer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010212789.9A CN102275477B (en) | 2010-06-12 | 2010-06-12 | Semitrailer hanger, semitrailer and assembly method of semitrailer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102275477A CN102275477A (en) | 2011-12-14 |
| CN102275477B true CN102275477B (en) | 2014-05-07 |
Family
ID=45101342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010212789.9A Active CN102275477B (en) | 2010-06-12 | 2010-06-12 | Semitrailer hanger, semitrailer and assembly method of semitrailer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102275477B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103465748B (en) * | 2013-09-18 | 2015-07-08 | 南海宾 | Vehicle suspension system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2172253A (en) * | 1985-03-13 | 1986-09-17 | James Leslie Holden | A suspension system for a vehicle |
| CN2714354Y (en) * | 2004-06-22 | 2005-08-03 | 王世光 | Portable combined type automobile draft pole |
| CN101190648A (en) * | 2006-12-02 | 2008-06-04 | 孙润建 | Multi-axle automobile rear axle locating tension rod |
| CN101623991A (en) * | 2008-07-08 | 2010-01-13 | 中国国际海运集装箱(集团)股份有限公司 | Semitrailer and suspension bracket of same |
-
2010
- 2010-06-12 CN CN201010212789.9A patent/CN102275477B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2172253A (en) * | 1985-03-13 | 1986-09-17 | James Leslie Holden | A suspension system for a vehicle |
| CN2714354Y (en) * | 2004-06-22 | 2005-08-03 | 王世光 | Portable combined type automobile draft pole |
| CN101190648A (en) * | 2006-12-02 | 2008-06-04 | 孙润建 | Multi-axle automobile rear axle locating tension rod |
| CN101623991A (en) * | 2008-07-08 | 2010-01-13 | 中国国际海运集装箱(集团)股份有限公司 | Semitrailer and suspension bracket of same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102275477A (en) | 2011-12-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2011380327B2 (en) | Method and arrangement for vehicle stabilization | |
| CN105307879B (en) | Mechanical wheel shaft/pendulum spring seat for thin-walled wheel shaft | |
| US9827820B2 (en) | Hanger for axle/suspension systems | |
| US7509847B2 (en) | Roadway grip tester and method | |
| US8733768B1 (en) | Race car four link bar to chassis remotely adjustable brackets | |
| EP2987694B1 (en) | Method for controlling braking in a vehicle and a vehicle having a control unit in which the method is executed | |
| US20150014512A1 (en) | Axle brake bracket for thin-wall axle | |
| CN204749775U (en) | Heavy -duty car suspension device | |
| CN102275477B (en) | Semitrailer hanger, semitrailer and assembly method of semitrailer | |
| CN102351008A (en) | Symmetrical four-link steering assembly for front axle of large-size mining dumper | |
| CN204659823U (en) | A kind of miniature electric automobile front suspension apparatus | |
| CN202175096U (en) | Symmetrical four-link steering assembly of front axle of large-sized mining dumper | |
| CN202156463U (en) | Mud tank semitrailer for well drilling | |
| CN104325992A (en) | U-shaped sub-frame gapless elastic connection structure | |
| CN106741246A (en) | Convenient quick-installation walking mechanism | |
| CN206231473U (en) | Convenient quick-installation walking mechanism | |
| US2793048A (en) | Independent front wheel suspension | |
| US9340078B2 (en) | Hydraulic equalizing spreader bar with dual spread links | |
| CN202389139U (en) | Mounting device for automotive shock absorber | |
| CN108909390B (en) | Rear axle assembly in balanced suspension and suspension frame | |
| CN201907377U (en) | Trailer and hanging system thereof | |
| CN217944801U (en) | Anti-pin-withdrawing structure of trailer axle | |
| CN204399273U (en) | A kind of SUV steering swivel | |
| CN112298383A (en) | Semi-trailer type transport vehicle and monitoring device thereof | |
| CN205220804U (en) | Fore -stock surrounds structure with board that sideslips entirely |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 518000 No. 2 Harbour Road, Shekou, Guangdong, Shenzhen Patentee after: Zhongji Vehicle (Group) Co.,Ltd. Patentee after: QINGDAO CIMC SPECIAL VEHICLES Co.,Ltd. Patentee after: QINGDAO CIMC CONTAINER MANUFACTURING Co.,Ltd. Address before: 518067 CIMC R & D center building, No. 2, Harbour Road, Shekou Industrial Zone, Guangdong, Shenzhen Patentee before: CIMC vehicle (Group) Co.,Ltd. Patentee before: QINGDAO CIMC SPECIAL VEHICLES Co.,Ltd. Patentee before: QINGDAO CIMC CONTAINER MANUFACTURING Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210510 Address after: 518000 No. 2 Harbour Road, Shekou, Guangdong, Shenzhen Patentee after: Zhongji Vehicle (Group) Co.,Ltd. Patentee after: QINGDAO CIMC SPECIAL VEHICLES Co.,Ltd. Address before: 518000 No. 2 Harbour Road, Shekou, Guangdong, Shenzhen Patentee before: Zhongji Vehicle (Group) Co.,Ltd. Patentee before: QINGDAO CIMC SPECIAL VEHICLES Co.,Ltd. Patentee before: QINGDAO CIMC CONTAINER MANUFACTURING Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230201 Address after: 518000 No. 2 Harbour Road, Shekou, Guangdong, Shenzhen, Nanshan District Patentee after: Zhongji Vehicle (Group) Co.,Ltd. Patentee after: YANGZHOU CIMC TONGHUA SPECIAL VEHICLES Co.,Ltd. Address before: 518000 No. 2 Harbour Road, Shekou, Guangdong, Shenzhen Patentee before: Zhongji Vehicle (Group) Co.,Ltd. Patentee before: QINGDAO CIMC SPECIAL VEHICLES Co.,Ltd. |