CN108425765A - A kind of assembled steel metal plate access plate on diesel engine - Google Patents
A kind of assembled steel metal plate access plate on diesel engine Download PDFInfo
- Publication number
- CN108425765A CN108425765A CN201810346419.0A CN201810346419A CN108425765A CN 108425765 A CN108425765 A CN 108425765A CN 201810346419 A CN201810346419 A CN 201810346419A CN 108425765 A CN108425765 A CN 108425765A
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- Prior art keywords
- nut set
- location hole
- axle sleeve
- diesel engine
- limit
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 64
- 239000010959 steel Substances 0.000 title claims abstract description 64
- 239000002184 metal Substances 0.000 title claims abstract description 20
- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract description 19
- 238000009434 installation Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 244000061408 Eugenia caryophyllata Species 0.000 claims 1
- 235000016639 Syzygium aromaticum Nutrition 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 210000002105 tongue Anatomy 0.000 description 15
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000004677 Nylon Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 210000000078 claw Anatomy 0.000 description 2
- 230000004992 fission Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 244000144985 peep Species 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F7/00—Casings, e.g. crankcases or frames
- F02F7/0065—Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Connection Of Plates (AREA)
Abstract
A kind of assembled steel metal plate access plate on diesel engine, including steel plate shell and nut set, location hole is equipped on the breathing lid mounting surface of steel plate shell, nut set includes axle sleeve, the lower shaft shoulder and upper limit circle, the lower shaft shoulder is arranged in the lower end of axle sleeve, the outer diameter of the lower shaft shoulder is more than the aperture of location hole, axle sleeve is sleeved in location hole, axle sleeve upper end is stretched out on breathing lid mounting surface lateral surface, the matched internal thread of external screw thread with respirator lid is equipped in the endoporus of axle sleeve, the outer diameter of upper limit circle is more than the aperture of location hole, upper limit circle is removably fixedly mounted on the axle sleeve for stretching out breathing lid mounting surface lateral surface, it is provided with circumferential position limiting structure between steel plate shell and nut set, axial seal connects between steel plate shell and nut set, realize the circumferential and axial limit of nut set.Present invention assembly is simple, and an assembly qualified rate height, manufacture craft requires low, low manufacture cost, service life long.
Description
Technical field
The present invention relates to the handhole covers on a kind of part of single cylinder diesel more particularly to diesel engine.
Background technology
On single cylinder diesel, in order to make to form certain negative pressure in body, it is ensured that diesel engine has good condition of negative pressure.
Breathing lid must be installed on the body of single cylinder diesel.Currently, breathing lid is all by being threadably mounted on handhole cover, equipped with exhaling
The handhole cover of suction cover is sealably mounted on the peep hole side of body, with the pressure in this balancing machine body.Existing observation
Port lid is various, in order to improve the impact resistance of handhole cover, reduces manufacturing cost, mitigates the main screw lift of diesel engine, contracts
Short production cycle, applicant have carried out steel metal plate access plate on diesel engine long-term research and experiment, have formd a series of
Patent achievement, a kind of steel metal plate access plate on diesel engine is disclosed in 201110046708.7, it by 0.8mm~
The steel plate punched of 2.5mm is molded, and first drawing goes out the thread Pilot hole of respirator mounting hole on breathing lid mounting surface, then passes through rolling
Mode forms threaded hole to thread Pilot hole, and this handhole cover wall thickness is essentially identical, and intensity is high, shock resistance is good, light-weight,
It is with short production cycle, relative inexpensiveness.But in the actual production process, the difficulty of processing of breathing lid mounting hole is larger, first to draw
Deep thread bottom outlet, then the machining internal thread by way of rolling, the yield rate of rolled thread be not high again.
In order to overcome this defect, and provide a kind of steel metal plate carrying out hermetic riveting structure by steel plate shell and nut set
Golden access plate on diesel engine, in this steel metal plate access plate on diesel engine, nut set includes flanging bore, the positioning diameter of axle, limit
Plane and inner bolt hole, the location hole clearance fit that the positioning diameter of axle is equipped with breathing lid mounting surface, flanging bore and inner bolt hole are coaxial,
Nut set is sleeved on by positioning the diameter of axle in the location hole on steel plate shell, and keeps the two fixed by the fixation of flange riveting method
It links into an integrated entity.The technical solution obtains Chinese invention patent, Patent No. ZL201110123722.2.This patent structure
The processing of respirator lid installation internal thread is simplified, can both rivet, and can also weld between nut set and location hole, and it is existing
Technology is compared, although increasing nut set, the processing technology cost of entire part is lower, the yield rate higher of product, more
Convenient for industrialization promotion application.
Although this scheme achieves expected effect, but nut set and steel plate shell flange are found in batch production process
It often will appear drawing crack phenomenon on flanging bore periphery when riveting, while to rivet not tight ratio also higher for nut set, nut set can be with
Breathing lid rotation, the first-time qualification rate of product is not high, and overall cost decline is unknown fresh, although product structure is with the obvious advantage, production
Product first-time qualification rate and price factor competitive advantage are weaker.Applicant has applied for Patent No. ZL201410415943.0's thus
Patent of invention.This patent is covered using nut to be interference fitted between the location hole of steel plate shell, and steel plate shell location hole is by four
All inside flange corrals close, and nut set is made of nylon material, and nut set plasticity is good, has good elasticity, energy
It is sealed and is coordinated by interference fit type between steel plate shell, nut set lower end is provided with bidirectionally limited pawl, it is bidirectionally limited
Pawl is contacted with flange circle, is realized to nut set circumferential and axial limit.This patent solves nut set with breathing lid rotation
Problem, nut set can be produced in enormous quantities by being molded, and production efficiency is high, cost lower than steel part 50% or so.
Although this scheme solves above-mentioned all technical problems, but to realize nut set circumferential and axial limit,
The location hole of steel plate shell must be enclosed from surrounding to in-flanges, occlusion tongue be arranged in flange circle lower end, then pass through nut
The bidirectionally limited pawl of set lower end setting coordinates with tongue is engaged, and is limited to nut set circumferential and axial.This structure positioning hole
Flanging process requires height, and aperture stability is poor, and location hole machining accuracy is low, and dimensional tolerance is big, and nut set is matched with location hole interference
It is high to close installation requirement, big nut set in location hole aperture easily loosens, easy oil leakage；Location hole aperture primary nut set can not be installed, therefore spiral shell
When mother set is fitted in location hole, it is difficult to ensure that the interference fit of nut set and location hole.Position hole flanging lower face with it is two-way
Position-limited claw end face is in direct contact, and diesel engine is constantly shaken in use so that positioning hole flanging lower face is always to two-way
Position-limited claw collision cutting leads to nut set damage, destroys original fit system.Applicant is studied and has been tried again thus
It tests, finds a kind of more preferably solution finally.
Invention content：
The object of the present invention is to provide a kind of assembled steel metal plate access plate on diesel engine.
The technical solution adopted by the present invention is：
A kind of assembled steel metal plate access plate on diesel engine, including steel plate shell and nut set, in steel plate shell
Breathing lid mounting surface be equipped with location hole, nut set is fixed in location hole, it is characterized in that：Nut set include axle sleeve,
The lower shaft shoulder and upper limit circle, the lower shaft shoulder are arranged in the lower end of axle sleeve, and the outer diameter of the lower shaft shoulder is more than the aperture of location hole, axle sleeve suit
In location hole, axle sleeve upper end is stretched out on breathing lid mounting surface lateral surface, is equipped in the endoporus of axle sleeve outer with respirator lid
The matched internal thread of screw thread, the outer diameter of upper limit circle are more than the aperture of location hole, and upper limit circle is removably fixedly mounted on
It stretches out on the axle sleeve of breathing lid mounting surface lateral surface, circumferential position limiting structure, steel plate is provided between steel plate shell and nut set
Axial seal connects between shell and nut set, realizes the circumferential and axial limit of nut set.
Further, it is provided with internal thread in the endoporus of upper limit circle, stretches out breathing lid mounting surface exterior side surface portion in axle sleeve
Exceptionally side is provided with is screwed in axle sleeve with the matched external screw thread of the internal thread of upper limit circle, upper limit circle by internal thread fixation
External screw thread on.
Further, the sealing means of axial seal connection are between the steel plate shell and nut set：Steel plate shell with
It is provided with axial sealing ring between the installation faying face of nut set.
Further, the circumferential position limiting structure is：The location hole is plain through holes, in the both sides of the lower shaft shoulder of nut set
It is provided with the winged leaf of limit, the length of the winged leaf of limit is more than the groove width of the interior cavity groove of steel plate shell, limits winged leaf and be stuck in steel plate shell
Interior cavity groove groove width both sides, realize the circumferential limit of nut set.
Further, the circumferential position limiting structure is：The location hole is plain through holes, and short slot is provided on location hole,
It is provided with protrusion corresponding with short slot on the axle sleeve of nut set, when axle sleeve is sleeved in location hole, protrusion is installed in short slot,
Realize the circumferential limit of nut set.
Further, the circumferential position limiting structure is：The flange circle extended downwardly is surrounded by location hole, in flange circle
Lower face is equipped with occlusion tongue, and limit short slot corresponding with occlusion tongue is provided on the lower shaft shoulder, and the upper end outer diameter of the lower shaft shoulder is big
In the internal diameter of flange circle, the groove width for limiting short slot is corresponding with the occlusion tongue width of tongue, and occlusion tongue is installed in limit short slot, is realized
The circumferential limit of nut set.
Further, equidistant compartment of terrain is equipped with occlusion tongue on the lower face of flange circle.
Further, equidistant compartment of terrain is equipped with two~eight occlusion tongues on the lower face of flange circle.
Further, the material of the nut set is resilient nonmetallic material.
Further, the resilient nonmetallic material is nylon.
Further, it is provided with anti-skid structure on the periphery of upper limit circle.
Further, the anti-skid structure is raised anti-slop serrations.
Since nut set is used axle sleeve and upper limit circle fission disassembly and assembly structure, when installation, can axle sleeve first be passed through into steel
The location hole of plate shell, then upper limit circle is fixedly mounted on axle sleeve upper end, to make nut set be fixedly mounted on steel plate shell
On, the nut set installation of this structure is easily convenient, and installation effectiveness is high.Nut is covered without interference fit between location hole, right
The requirement of location hole aperture is low, and location hole can be that flanging bore may be plain through holes, substantially reduce the processing technology of location hole
It is required that efficient, low manufacture cost, nut set reaches 100% with assembly qualified rate of location hole.Nut set is torn open using fission
Assembling structure, in damage, dismounting and change is quick and convenient.Due to being provided with circumferential position limiting structure between nut set and steel plate shell,
Circumferential position limiting structure, which can cover nut, carries out circumferential limit, and the upper end of the axle sleeve of nut set is provided with upper limit circle, circumferential to limit
Bit architecture and upper limit circle, which again can cover nut, carries out axial limiting.Nut set can be produced in enormous quantities by being molded, production efficiency
It is high.Axial seal connects between nut set and the installation faying face of steel plate shell, and it is close with steel plate shell to ensure that nut is covered
Sealing property.Anti-skid structure is set on upper limit circle periphery, convenient for being screwed on for upper limit circle, ensures the close peace of upper limit circle
Dress.Present invention assembly is simple, an assembly qualified rate height, and manufacture craft requirement is low, and low manufacture cost, service life is long, relatively
It is had substantive features and progress in the prior art.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the present invention；
Fig. 2 is the left view of Fig. 1；
Fig. 3 is the broken section enlarged structure schematic diagram of Fig. 1 light plates shell and nut set junction；
Fig. 4 is the enlarged structure schematic diagram that nut covers in Fig. 1；
Fig. 5 is the upward view of Fig. 4；
Fig. 6 is the structural schematic diagram of embodiment 3；
Fig. 7 is the structural schematic diagram of embodiment 4；
Fig. 8 is the distributed architecture schematic diagram that short slot is limited in Fig. 7；
In figure：1- steel plate shells；2- nut sets；3- circumferential direction position limiting structures；4- axial sealing rings；11- breathes lid mounting surface；
12- location holes；Cavity groove in 13-；14- short slots；15- flange circles；16- is engaged tongue；21- axle sleeves；The shaft shoulder under 22-；23- upper limits
Circle；24- limits fly leaf；25- protrusions；26- limits short slot.
Specific implementation mode
Illustrate the specific implementation mode of the present invention below in conjunction with the accompanying drawings：
Embodiment 1：A kind of assembled steel metal plate access plate on diesel engine, as shown in fig. 1~fig. 5, including steel plate
Shell 1 and nut set 2, are equipped with location hole 12 on the breathing lid mounting surface 11 of steel plate shell 1, and nut set 2 is fixed on location hole
In 12, the nut set 2 includes axle sleeve 21, the lower shaft shoulder 22 and upper limit circle 23, and the lower shaft shoulder 22 is circumferentially disposed at axle sleeve 21
Lower end, the outer diameter of the lower shaft shoulder 22 are more than the aperture of location hole 12, and axle sleeve 21 is sleeved in location hole 12, and 21 upper end of axle sleeve, which is stretched out, exhales
On 11 lateral surface of suction cover mounting surface, the matched internal thread of external screw thread with respirator lid is equipped in the endoporus of axle sleeve 21, on
The outer diameter of spacing collar 23 is more than the aperture of location hole 12, is provided with internal thread in the endoporus of upper limit circle 23, is stretched in axle sleeve 21
Go out to breathe and be provided with and the matched external screw thread of the internal thread of upper limit circle 23, upper limit on the outside of 11 outboard side portion of lid mounting surface
Circle 23 is screwed in by internal thread fixation on the external screw thread of axle sleeve 21, and circumferential limit is provided between steel plate shell 1 and nut set 2
Bit architecture 3, the circumferential direction position limiting structure 3 are：The location hole 12 is plain through holes, in the both sides of the lower shaft shoulder 22 of nut set 2
Be provided with limit and fly leaf 24, limit fly leaf 24 length be more than steel plate shell 1 interior cavity groove 13 groove width, limit and fly leaf 24 and be stuck in
The circumferential and axial limit of nut set 2 is realized, in steel plate shell 1 and nut set in the groove width both sides of the interior cavity groove 13 of steel plate shell 1
It is provided with axial sealing ring 4 between 2 installation faying face, anti-skid structure is provided on the periphery of upper limit circle 23, it is described
Anti-skid structure is raised anti-slop serrations, and the material of the nut set 2 is nylon.
Embodiment 2：The sealing means of axial seal connection are between the steel plate shell 1 and nut set 2：In steel plate shell
It is coated with sealant layer between 1 and the installation faying face of nut set 2.
Embodiment 3：As shown in fig. 6, the circumferential direction position limiting structure 3 is：The location hole 12 is plain through holes, in location hole
It is provided with short slot 14 on 12, corresponding with short slot 14 raised 25 are provided on the axle sleeve 21 of nut set 2, axle sleeve 21 is sleeved on fixed
When in the hole 12 of position, protrusion 25 is installed in short slot 14.
Embodiment 4：As shown in Fig. 7~Fig. 8, the circumferential direction position limiting structure 3 is：It is surrounded by and extends downwardly in location hole 12
Flange circle 15, on the lower face of flange circle 15 equidistant compartment of terrain set there are four be engaged tongue 16, be provided on the lower shaft shoulder 22
Limit short slot 26 corresponding with occlusion tongue 16, the upper end outer diameter of the lower shaft shoulder 22 are more than the internal diameter of flange circle 15, limit short slot 26
Groove width with occlusion the tongue width of tongue 16 it is corresponding, occlusion tongue 16 be installed on limit short slot 26 in.
There are many embodiments of the present invention, axial seal connection knot between steel plate shell 1 and the installation faying face of nut set 2
Structure is not limited to the above embodiments；As long as circumferential position limiting structure 3 realizes the circumferential limit of nut set 2；As long as anti-skid structure rises
To any structure of anti-skidding effect.
Claims (10)
1. a kind of assembled steel metal plate access plate on diesel engine, including steel plate shell (1) and nut set (2), in steel plate
The breathing lid mounting surface (11) of shell (1) is equipped with location hole (12), and nut set (2) is fixed in location hole (12), feature
It is：The nut set (2) includes axle sleeve (21), the lower shaft shoulder (22) and upper limit circle (23), and the lower shaft shoulder (22) is arranged in axle sleeve
(21) lower end, the outer diameter of the lower shaft shoulder (22) are more than the aperture of location hole (12), and axle sleeve (21) is sleeved in location hole (12), axis
It covers (21) upper end to stretch out on breathing lid mounting surface (11) lateral surface, the outer spiral shell with respirator lid is equipped in the endoporus of axle sleeve (21)
The matched internal thread of line, the outer diameter of upper limit circle (23) are more than the aperture of location hole (12), and upper limit circle (23) is dismountable
It is fixedly mounted on the axle sleeve (21) for stretching out breathing lid mounting surface (11) lateral surface, between steel plate shell (1) and nut set (2)
Be provided with circumferential position limiting structure (3), between steel plate shell (1) and nut set (2) axial seal connect, realize nut set (2)
Circumferential and axial limit.
2. assembled steel metal plate access plate on diesel engine according to claim 1, it is characterized in that：In upper limit circle
(23) be provided with internal thread in endoporus, axle sleeve (21) stretch out breathing lid mounting surface (11) outboard side portion on the outside of be provided with
The matched external screw thread of internal thread of upper limit circle (23), upper limit circle (23) are screwed in axle sleeve (21) by internal thread fixation
On external screw thread.
3. assembled steel metal plate access plate on diesel engine according to claim 1, it is characterized in that：The steel plate shell
(1) sealing means that axial seal is connect between nut set (2) are：It is combined with the installation of nut set (2) in steel plate shell (1)
Axial sealing ring (4) is provided between face.
4. assembled steel metal plate access plate on diesel engine according to claim 1, it is characterized in that：The circumferential limit
Structure (3) is：The location hole (12) is plain through holes, and the both sides of the lower shaft shoulder (22) of nut set (2), which are provided with limit, to fly
Leaf (24), the length of the winged leaf (24) of limit are more than the groove width of the interior cavity groove (13) of steel plate shell (1), limit winged leaf (24) and be stuck in steel
The circumferential limit of nut set (2) is realized in the groove width both sides of the interior cavity groove (13) of plate shell (1).
5. assembled steel metal plate access plate on diesel engine according to claim 1, it is characterized in that：The circumferential limit
Structure (3) is：The location hole (12) is plain through holes, and short slot (14), the axis in nut set (2) are provided on location hole (12)
Raised (25) corresponding with short slot (14), when axle sleeve (21) is sleeved in location hole (12), protrusion are provided on set (21)
(25) it is installed in short slot (14), realizes the circumferential limit of nut set (2).
6. assembled steel metal plate access plate on diesel engine according to claim 1, it is characterized in that：The circumferential limit
Structure (3) is：It is surrounded by the flange circle (15) extended downwardly in location hole (12), is equipped on the lower face of flange circle (15)
Be engaged tongue (16), be provided on the lower shaft shoulder (22) and be engaged tongue (16) corresponding limit short slot (26), the lower shaft shoulder (22) it is upper
Outer diameter is held to be more than the internal diameter of flange circle (15), the groove width of limit short slot (26) is corresponding with the tongue width of occlusion tongue (16), is engaged tongue
(16) it is installed in limit short slot (26), realizes the circumferential limit of nut set (2).
7. assembled steel metal plate access plate on diesel engine according to claim 6, it is characterized in that：In flange circle (15)
Lower face on equidistantly compartment of terrain be equipped with occlusion tongue (16).
8. assembled steel metal plate access plate on diesel engine according to claim 1, it is characterized in that：The nut set
(2) material is resilient nonmetallic material.
9. assembled steel metal plate access plate on diesel engine according to claim 1, it is characterized in that：In upper limit circle
(23) anti-skid structure is provided on periphery.
10. assembled steel metal plate access plate on diesel engine according to claim 9, it is characterized in that：The anti-Slipped Clove Hitch
Structure is raised anti-slop serrations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810346419.0A CN108425765A (en) | 2018-04-18 | 2018-04-18 | A kind of assembled steel metal plate access plate on diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810346419.0A CN108425765A (en) | 2018-04-18 | 2018-04-18 | A kind of assembled steel metal plate access plate on diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108425765A true CN108425765A (en) | 2018-08-21 |
Family
ID=63161473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810346419.0A Pending CN108425765A (en) | 2018-04-18 | 2018-04-18 | A kind of assembled steel metal plate access plate on diesel engine |
Country Status (1)
| Country | Link |
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| CN (1) | CN108425765A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201215033Y (en) * | 2008-05-03 | 2009-04-01 | 王枝俏 | 170F, 175F diesel engine observation hole cover |
| CN102213121A (en) * | 2011-05-13 | 2011-10-12 | 王荣海 | Steel sheet metal access plate on diesel engine |
| US20110284539A1 (en) * | 2010-05-24 | 2011-11-24 | Dennis Stevenson | Easy grip, readily removable and reusable self-locking oil pan plug |
| JP2012255373A (en) * | 2011-06-08 | 2012-12-27 | Mahle Filter Systems Japan Corp | Drain plug installing structure of synthetic resin cover |
| CN104196646A (en) * | 2014-08-21 | 2014-12-10 | 王荣海 | Observation hole cover of steel metal plate diesel engine |
| CN208057255U (en) * | 2018-04-18 | 2018-11-06 | 王荣海 | A kind of assembled steel metal plate access plate on diesel engine |
-
2018
- 2018-04-18 CN CN201810346419.0A patent/CN108425765A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201215033Y (en) * | 2008-05-03 | 2009-04-01 | 王枝俏 | 170F, 175F diesel engine observation hole cover |
| US20110284539A1 (en) * | 2010-05-24 | 2011-11-24 | Dennis Stevenson | Easy grip, readily removable and reusable self-locking oil pan plug |
| CN102213121A (en) * | 2011-05-13 | 2011-10-12 | 王荣海 | Steel sheet metal access plate on diesel engine |
| JP2012255373A (en) * | 2011-06-08 | 2012-12-27 | Mahle Filter Systems Japan Corp | Drain plug installing structure of synthetic resin cover |
| CN104196646A (en) * | 2014-08-21 | 2014-12-10 | 王荣海 | Observation hole cover of steel metal plate diesel engine |
| CN208057255U (en) * | 2018-04-18 | 2018-11-06 | 王荣海 | A kind of assembled steel metal plate access plate on diesel engine |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20231206 Address after: No. 50, Lijia Village, Xihua Village Committee, Yaotang Street, Jintan District, Changzhou City, Jiangsu Province, 213200 Applicant after: Changzhou Senfeng Machinery Co.,Ltd. Address before: No. 35 Dafen Village, Diansheng Village Committee, Jincheng Town, Jintan District, Changzhou City, Jiangsu Province, 213200 Applicant before: Wang Ronghai |
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