CN108757598A - A kind of pressurized cylinder - Google Patents
A kind of pressurized cylinder Download PDFInfo
- Publication number
- CN108757598A CN108757598A CN201810709969.4A CN201810709969A CN108757598A CN 108757598 A CN108757598 A CN 108757598A CN 201810709969 A CN201810709969 A CN 201810709969A CN 108757598 A CN108757598 A CN 108757598A
- Authority
- CN
- China
- Prior art keywords
- master cylinder
- pressure chamber
- low pressure
- high pressure
- chest
- 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.)
- Pending
Links
- 206010008469 Chest discomfort Diseases 0.000 claims abstract description 46
- 238000004891 communication Methods 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 8
- 239000010720 hydraulic oil Substances 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 description 4
- 239000003921 oil Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B3/00—Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1409—Characterised by the construction of the motor unit of the straight-cylinder type with two or more independently movable working pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1428—Cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1447—Pistons; Piston to piston rod assemblies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/17—Characterised by the construction of the motor unit of the straight-cylinder type of differential-piston type
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The invention belongs to hydraulic press technical fields, disclose a kind of pressurized cylinder, including master cylinder bottom and supercharging piston rod.Interconnected low pressure chamber and high pressure chest are provided in master cylinder bottom, the caliber of low pressure chamber is more than the caliber of high pressure chest, and low pressure chamber one end is provided with low pressure inlet, and high pressure chest is communicated in the main pressure chamber of master cylinder.Supercharging piston rod includes that the piston portion being connected with each other and slide bar portion, piston portion circumferentially fit in low pressure chamber and can be slided in low pressure chamber, and slide bar portion circumferentially fits in high pressure chest and can be slided in high pressure chest.In the present invention, by the way that low pressure chamber and high pressure chest are arranged in the master cylinder bottom of master cylinder, and coordinate low pressure chamber and high pressure chest that supercharging piston rod is set, the problem of pressurized cylinder is integrated on master cylinder, the pressure piping between pressurized cylinder and master cylinder is omitted, effectively prevents pressure piping Joint failure, simultaneously compared to the setting of independent plenums cylinder, the usage amount for effectively reducing hydraulic oil improves production efficiency so as to shorten pressurization time.
Description
Technical field
The present invention relates to hydraulic press technical field more particularly to a kind of pressurized cylinders.
Background technology
In existing large-scale ultrahigh pressure hydraulic press, master cylinder highest operating oil pressure can reach 300MPa, to reach this pressure value,
It mostly uses outer boosting method greatly in the prior art, is connected to master cylinder by pressure piping using independent pressurized cylinder, realizes main oil
The super-high pressure work pressure of cylinder.The outer boosting method of such setting independent plenums cylinder exists due to the connection by pressure piping
The problem of pressure piping Joint failure, increases making for hydraulic oil simultaneously because there is the presence of master cylinder, pressurized cylinder and connecting pipe
Dosage reduces production efficiency to extend pressurization time, increases production cost.
Invention content
The purpose of the present invention is to provide a kind of pressurized cylinders, can omit the pressure piping between master cylinder, reduce hydraulic pressure
The usage amount of oil is safely and efficiently pressurized master cylinder.
For this purpose, the present invention uses following technical scheme：
A kind of pressurized cylinder, including：
Master cylinder bottom is provided with interconnected low pressure chamber and high pressure chest in the master cylinder bottom, and the caliber of the low pressure chamber is big
In the caliber of the high pressure chest, described low pressure chamber one end is provided with low pressure inlet, and the high pressure chest is communicated in the main pressure of master cylinder
Chamber
Supercharging piston rod, including the piston portion of interconnection and slide bar portion, the piston portion circumferentially fit in the low pressure
It chamber and can be slided in the low pressure chamber, the slide bar portion circumferentially fits in the high pressure chest and can be in the high pressure chest
Sliding.
Preferably, being additionally provided with supercharging return pass in the master cylinder bottom, described supercharging return pass one end is communicated in
The low pressure chamber, the other end are communicated in outside the master cylinder bottom.
Preferably, described supercharging return pass one end is communicated in the low pressure chamber close to one end of the high pressure chest, institute
It states and is provided with transition part between piston portion and the slide bar portion, the caliber of the transition part is less than the caliber of the piston portion and big
Caliber in the slide bar portion.
Preferably, described low pressure chamber one end is provided with pressurized cylinder bottom, the low pressure inlet is set to the pressurized cylinder
On bottom.
Preferably, one end of the high pressure chest is provided with prefill valve.
Preferably, the low pressure chamber and high pressure chest coaxial arrangement, the pressurized cylinder bottom and the prefill valve are located at
The opposite both sides in the master cylinder bottom.
Preferably, further including Master cylinder body, the main pressure chamber is set in the Master cylinder body, and the master cylinder bottom is set to institute
One end of Master cylinder body is stated, communication port is provided on the master cylinder bottom, the high pressure chest passes through the communication port and the main pressure chamber
Connection.
Preferably, further including master cylinder cover, the master cylinder cover is set to the other end of the Master cylinder body.
Preferably, sliding is provided with main pressure piston rod in the Master cylinder body.
Preferably, the axis of the high pressure chest and the axis of the main pressure chamber are mutually perpendicular to.
Beneficial effects of the present invention：By the way that low pressure chamber and high pressure chest are arranged in the master cylinder bottom of master cylinder, and coordinate low pressure chamber
Supercharging piston rod is set with high pressure chest, pressurized cylinder is integrated on master cylinder, the pressure piping between pressurized cylinder and master cylinder is omitted,
The problem of effectively preventing pressure piping Joint failure, while compared to the setting of independent plenums cylinder, effectively reducing hydraulic oil
Usage amount improve production efficiency so as to shorten pressurization time, reduce production cost.
Description of the drawings
Fig. 1 is the front view of the pressurized cylinder described in the embodiment of the present invention；
Fig. 2 is the sectional view along A-A of Fig. 1；
Fig. 3 is the B-B direction sectional view of Fig. 1.
In figure：
1, master cylinder bottom；
2, supercharging piston rod；21, piston portion；22, slide bar portion；23, transition part；
3, pressurized cylinder bottom；
4, prefill valve；
5, Master cylinder body；
6, master cylinder cover；
7, main pressure piston rod；
100, low pressure chamber；200, high pressure chest；300, low pressure inlet；400, main pressure chamber；500, it is pressurized return pass；600,
Communication port.
Specific implementation mode
The embodiment of the present invention is described below in detail, the example of embodiment is shown in the accompanying drawings, wherein identical from beginning to end
Or similar label indicates same or similar element or element with the same or similar functions.It is retouched below with reference to attached drawing
The embodiment stated is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Technical solution to further illustrate the present invention below with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1-Figure 3, the present invention provides a kind of pressurized cylinders, including master cylinder bottom 1 and supercharging piston rod 2.Wherein, main
Interconnected low pressure chamber 100 and high pressure chest 200 are provided in cylinder bottom 1, the caliber of low pressure chamber 100 is more than the pipe of high pressure chest 200
Diameter, 100 one end of low pressure chamber are provided with low pressure inlet 300, and high pressure chest 200 is communicated in the main pressure chamber 400 of master cylinder.Wherein, it is pressurized
Piston rod 2 includes the piston portion 21 being connected with each other and slide bar portion 22, and piston portion 21 circumferentially fits in low pressure chamber 100 and can be low
Sliding in chamber 100, slide bar portion 22 is pressed circumferentially to fit in high pressure chest 200 and being capable of the sliding in high pressure chest 200.
In the present invention, by setting low pressure chamber 100 and high pressure chest 200 in the master cylinder bottom 1 of master cylinder, and coordinate low pressure chamber
100 and high pressure chest 200 be arranged supercharging piston rod 2, pressurized cylinder is integrated on master cylinder, the height between pressurized cylinder and master cylinder is omitted
Pressure pipeline, the problem of effectively preventing pressure piping Joint failure, while compared to the setting of independent plenums cylinder, effectively reducing
The usage amount of hydraulic oil improves production efficiency so as to shorten pressurization time, reduces production cost.
In the present embodiment, supercharging return pass 500, the connection of 500 one end of supercharging return pass are additionally provided in master cylinder bottom 1
In low pressure chamber 100, the other end is communicated in outside master cylinder bottom 1.Specifically, 500 one end of supercharging return pass is communicated in low pressure chamber 100
Close to one end of high pressure chest 200, transition part 23 is provided between piston portion 21 and slide bar portion 22, the caliber of transition part 23, which is less than, lives
The caliber of piston part 21 and the caliber for being more than slide bar portion 22.Above-mentioned setting so that terminate supercharging piston rod 2 in supercharging and need backhaul
When, there are certain gap, operations at the step of 200 transition of low pressure chamber 100 and high pressure chest for the piston portion 21 of supercharging piston rod 2
Personnel can apply pressure by injecting hydraulic oil from the backhaul side of piston portion 21, so that 2 quick return of supercharging piston rod.
Specifically, 100 one end of low pressure chamber is provided with pressurized cylinder bottom 3, low pressure inlet 300 is set on pressurized cylinder bottom 3, outside
The hydraulic oil in portion can be entered by the low pressure inlet 300 at pressurized cylinder bottom 3 in low pressure chamber 100, be applied from the side of piston portion 21
Plus-pressure pushes supercharging piston rod 2 to 200 1 Slideslip of high pressure chest.One end of high pressure chest 200 is provided with prefill valve 4, external
Hydraulic oil passes sequentially through prefill valve 4, high pressure chest 200 injects in main pressure chamber 400.
More specifically, low pressure chamber 100 and high pressure chest 200 are coaxially disposed, and pressurized cylinder bottom 3 and prefill valve 4 are located at master cylinder bottom 1
Opposite both sides, by high-strength screw and master cylinder from the both-side opening of the lumen therethrough formed from low pressure chamber 100 and high pressure chest 200
Bottom 1 is connected to, and is sealed to lumen therethrough.
The pressurized cylinder of the present invention further includes Master cylinder body 5 and master cylinder cover 6.Wherein, main pressure chamber 400 is set in Master cylinder body 5, main
Cylinder bottom 1 is set to one end of Master cylinder body 5, and master cylinder cover 6 is set to the other end of Master cylinder body 5, master cylinder bottom 1 and master cylinder cover 6 from main pressure
It is attached with Master cylinder body 5 by high-strength screw at the both ends open of chamber 400 and main pressure chamber 400 is sealed.It is set on master cylinder bottom 1
It is equipped with communication port 600, high pressure chest 200 is connected to by the communication port 600 with main pressure chamber 400.
Specifically, sliding is provided with main pressure piston rod 7, the glide direction and charged piston of main pressure piston rod 7 in Master cylinder body 5
The glide direction of bar 2 is perpendicular.Above-mentioned setting takes full advantage of the lateral dimension at master cylinder bottom 1, and it is to adapt to avoid master cylinder bottom 1
The setting of supercharging piston rod 2 increases vertical dimension.
More specifically, the axis of high pressure chest 200 and the axis of main pressure chamber 400 are mutually perpendicular to, the axis of communication port 600 with
The axis of main pressure chamber 400 is arranged in angle, is tilted towards prefill valve 4.Above-mentioned setting so that the hydraulic oil imported through prefill valve 4
It is more easy to import main pressure chamber 400.
The pressurized cylinder of the present invention is in specific works：It is realized to high pressure chest 200 and 400 filling liquid of main pressure chamber by prefill valve 4
The fast downlink of main pressure piston rod 7, master cylinder enters compacting state after the completion of filling liquid, at this time by low pressure inlet 300 to low pressure
100 filling liquid of chamber pushes supercharging piston rod 2 to continue to be pressed into hydraulic oil into main pressure chamber 400, realizes hydraulic oil pressure in main pressure chamber 400
Power is increased rapidly to super-pressure (being pressurized to 300MPa in the present embodiment) by low pressure, realizes the super-pressure compacting state of master cylinder,
After the completion of master cylinder compacting, by being pressurized backhaul side filling liquid of the return pass 500 to the piston portion 21 of supercharging piston rod 2, realizes and increase
Press the quick return of piston rod 2.
Obviously, the above embodiment of the present invention is just for the sake of clearly illustrating examples made by the present invention, and it is pair to be not
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
All any modification, equivalent and improvement etc., should be included in the claims in the present invention made by within the spirit and principle of invention
Protection domain within.
Claims (10)
1. a kind of pressurized cylinder, which is characterized in that including：
Master cylinder bottom (1), the master cylinder bottom (1) is interior to be provided with interconnected low pressure chamber (100) and high pressure chest (200), described low
The caliber of chamber (100) is pressed to be more than the caliber of the high pressure chest (200), described low pressure chamber (100) one end is provided with low pressure inlet
(300), the high pressure chest (200) is communicated in the main pressure chamber (400) of master cylinder
Supercharging piston rod (2), including the piston portion (21) of interconnection and slide bar portion (22), the piston portion (21) are circumferentially bonded
It can slide in the low pressure chamber (100) and in the low pressure chamber (100), the slide bar portion (22) circumferentially fits in the height
It presses chamber (200) and can be slided in the high pressure chest (200).
2. pressurized cylinder according to claim 1, which is characterized in that it is logical to be additionally provided with supercharging backhaul in the master cylinder bottom (1)
Road (500), described supercharging return pass (500) one end are communicated in the low pressure chamber (100), and the other end is communicated in the master cylinder bottom
(1) external.
3. pressurized cylinder according to claim 2, which is characterized in that described supercharging return pass (500) one end is communicated in institute
The one end of low pressure chamber (100) close to the high pressure chest (200) is stated, is arranged between the piston portion (21) and the slide bar portion (22)
There are transition part (23), the caliber of the transition part (23) to be less than the caliber of the piston portion (21) and be more than the slide bar portion (22)
Caliber.
4. pressurized cylinder according to claim 1, which is characterized in that described low pressure chamber (100) one end is provided with pressurized cylinder bottom
(3), the low pressure inlet (300) is set on the pressurized cylinder bottom (3).
5. pressurized cylinder according to claim 4, which is characterized in that one end of the high pressure chest (200) is provided with prefill valve
(4)。
6. pressurized cylinder according to claim 5, which is characterized in that the low pressure chamber (100) and the high pressure chest (200) are same
Axis is arranged, and the pressurized cylinder bottom (3) and the prefill valve (4) are located at the opposite both sides of the master cylinder bottom (1).
7. according to any pressurized cylinders of claim 1-6, which is characterized in that further include Master cylinder body (5), the main pressure chamber
(400) it is set in the Master cylinder body (5), the master cylinder bottom (1) is set to one end of the Master cylinder body (5), the master cylinder bottom
(1) communication port (600) is provided on, the high pressure chest (200) is connected by the communication port (600) and the main pressure chamber (400)
It is logical.
8. pressurized cylinder according to claim 7, which is characterized in that further include master cylinder cover (6), master cylinder cover (6) setting
The other end in the Master cylinder body (5).
9. pressurized cylinder according to claim 7, which is characterized in that sliding is provided with main pressure piston in the Master cylinder body (5)
Bar (7).
10. pressurized cylinder according to claim 7, which is characterized in that the axis of the high pressure chest (200) and the main pressure chamber
(400) axis is mutually perpendicular to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810709969.4A CN108757598A (en) | 2018-07-02 | 2018-07-02 | A kind of pressurized cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810709969.4A CN108757598A (en) | 2018-07-02 | 2018-07-02 | A kind of pressurized cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108757598A true CN108757598A (en) | 2018-11-06 |
Family
ID=63975389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810709969.4A Pending CN108757598A (en) | 2018-07-02 | 2018-07-02 | A kind of pressurized cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108757598A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112303044A (en) * | 2020-11-03 | 2021-02-02 | 江苏维达机械有限公司 | Pressurizing oil cylinder |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2188474Y (en) * | 1994-01-08 | 1995-02-01 | 福州海源石材机械有限公司 | Hydraulic amplifier for presser |
| JP2002181012A (en) * | 2000-12-12 | 2002-06-26 | Earth Sangyo:Kk | Coaxial differential piston |
| GB0819742D0 (en) * | 2008-10-28 | 2008-12-03 | Rodney Linval | Hydraulic piercing cam |
| CN102865269A (en) * | 2011-07-04 | 2013-01-09 | 鸿富锦精密工业（深圳）有限公司 | Cylinder |
| CN202789782U (en) * | 2012-09-26 | 2013-03-13 | 潍坊市华玉塑料机械有限公司 | Pressurizing type oil cylinder |
| WO2013058602A2 (en) * | 2011-10-21 | 2013-04-25 | Ju Da Young | Hydraulic pressure booster cylinder |
| CN204403036U (en) * | 2014-12-31 | 2015-06-17 | 南武油缸（常州）有限公司 | For the Thin-type hydraulic oil cylinder of transfer mold |
| US20180031011A1 (en) * | 2016-07-26 | 2018-02-01 | Smc Corporation | Fluid pressure cylinder with boosting mechanism |
| CN207111584U (en) * | 2017-08-23 | 2018-03-16 | 南通理工智能制造技术有限公司 | Stroke-controllable automatic reciprocating hydraulic cylinder |
| CN108087348A (en) * | 2018-02-05 | 2018-05-29 | 张耀辰 | A kind of liquid pressure converter |
| CN208417099U (en) * | 2018-07-02 | 2019-01-22 | 天津智威泰克成形技术有限公司 | A kind of pressurized cylinder |
-
2018
- 2018-07-02 CN CN201810709969.4A patent/CN108757598A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2188474Y (en) * | 1994-01-08 | 1995-02-01 | 福州海源石材机械有限公司 | Hydraulic amplifier for presser |
| JP2002181012A (en) * | 2000-12-12 | 2002-06-26 | Earth Sangyo:Kk | Coaxial differential piston |
| GB0819742D0 (en) * | 2008-10-28 | 2008-12-03 | Rodney Linval | Hydraulic piercing cam |
| CN102865269A (en) * | 2011-07-04 | 2013-01-09 | 鸿富锦精密工业（深圳）有限公司 | Cylinder |
| WO2013058602A2 (en) * | 2011-10-21 | 2013-04-25 | Ju Da Young | Hydraulic pressure booster cylinder |
| CN202789782U (en) * | 2012-09-26 | 2013-03-13 | 潍坊市华玉塑料机械有限公司 | Pressurizing type oil cylinder |
| CN204403036U (en) * | 2014-12-31 | 2015-06-17 | 南武油缸（常州）有限公司 | For the Thin-type hydraulic oil cylinder of transfer mold |
| US20180031011A1 (en) * | 2016-07-26 | 2018-02-01 | Smc Corporation | Fluid pressure cylinder with boosting mechanism |
| CN207111584U (en) * | 2017-08-23 | 2018-03-16 | 南通理工智能制造技术有限公司 | Stroke-controllable automatic reciprocating hydraulic cylinder |
| CN108087348A (en) * | 2018-02-05 | 2018-05-29 | 张耀辰 | A kind of liquid pressure converter |
| CN208417099U (en) * | 2018-07-02 | 2019-01-22 | 天津智威泰克成形技术有限公司 | A kind of pressurized cylinder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112303044A (en) * | 2020-11-03 | 2021-02-02 | 江苏维达机械有限公司 | Pressurizing oil cylinder |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20220117 Address after: 315020 room 1-35, No. 183 and No. 189, Renmin Road, Jiangbei District, Ningbo City, Zhejiang Province Applicant after: Ningbo qingkezhiwei Technology Co.,Ltd. Address before: 300300 Room 305, building 4, Kechuang Huigu (Tianjin) park, east section of Hongshun Road, Huaming high tech Industrial Zone, Dongli District, Tianjin Applicant before: TIANJIN ZHIWEI TAIKE FORMING TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20230731 Address after: No. 101, No. 55 Huahua Road, Zhifu District, Yantai City, Shandong Province, 264002 Applicant after: Shandong Future Machinery Equipment Co.,Ltd. Address before: 315020 room 1-35, No. 183 and No. 189, Renmin Road, Jiangbei District, Ningbo City, Zhejiang Province Applicant before: Ningbo qingkezhiwei Technology Co.,Ltd. |
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