CN113735047A - Sealing device with tensioning structure - Google Patents
Sealing device with tensioning structure Download PDFInfo
- Publication number
- CN113735047A CN113735047A CN202010458359.9A CN202010458359A CN113735047A CN 113735047 A CN113735047 A CN 113735047A CN 202010458359 A CN202010458359 A CN 202010458359A CN 113735047 A CN113735047 A CN 113735047A
- Authority
- CN
- China
- Prior art keywords
- trapezoidal
- tensioning
- plate
- sealing device
- nut
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 109
- 238000002347 injection Methods 0.000 claims abstract description 10
- 239000007924 injection Substances 0.000 claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims 2
- 239000010959 steel Substances 0.000 claims 2
- 238000009434 installation Methods 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 45
- 238000000034 method Methods 0.000 description 6
- 230000000630 rising effect Effects 0.000 description 6
- 238000011084 recovery Methods 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 239000012530 fluid Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/02—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/04—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring fuels, lubricants or mixed fuels and lubricants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/42—Filling nozzles
- B67D7/54—Filling nozzles with means for preventing escape of liquid or vapour or for recovering escaped liquid or vapour
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/78—Arrangements of storage tanks, reservoirs or pipe-lines
Abstract
The invention provides a sealing device with a tensioning structure, which comprises an oil injection pipe, a sealing cover, a sealing gasket, a tank car tank opening, a rectangular guide pipe, a guide rod, a tensioning plate, a trapezoidal sliding block, a connecting ring, a fixing ring, a limiting pin, a supporting plate, a trapezoidal nut and a screw rod, wherein the sealing device with the tensioning structure is arranged in the tank car tank opening; the tensioning plate is characterized in that one end of the tensioning plate is embedded into a trapezoidal nut and a trapezoidal slider conical surface groove, the screw rod drives the trapezoidal nut to move up and down in the rectangular guide pipe, the trapezoidal nut is connected with the trapezoidal slider through the connecting ring, the connecting ring drives the trapezoidal slider to move up and down in the rectangular guide pipe by taking the guide rod as an axis, when the trapezoidal nut and the trapezoidal slider move up, the tensioning plate is pushed out by the trapezoidal nut and the trapezoidal slider to move horizontally outwards and is tensioned with the inner wall of a tank car tank opening, a limit pin is fixed on the tensioning plate and moves in the groove of the support plate, the bottom of the support plate is hung at one end of the limit pin, and the tensioning plate and the tank car tank opening acting force can prevent the tensioning plate from moving up and failing due to tensioning when the trapezoidal nut and the trapezoidal slider move up. The upper ends of the rectangular guide pipe, the guide rod and the screw rod of the sealing device with the tensioning structure are fixed with the sealing cover, and the lower ends of the rectangular guide pipe, the guide rod and the screw rod are connected with the supporting plate and the fixing ring. The sealing device with the tensioning structure provided by the invention has the advantages of simple overall structure, low manufacturing cost, convenience in installation, reliability in sealing, safety and environmental friendliness, and can be suitable for tank car mouths with different apertures.
Description
Technical Field
The invention relates to a tank opening sealing device of a tank car, in particular to a novel sealing device with a tensioning structure.
Background
In the petrochemical industry, the fluid is at the loading in-process, mostly has adopted airtight loading, is about to seal the lid and covers on tank wagon jar mouth, in the oiling pipe disect insertion tank wagon jar mouth, at the in-process of filling, because the sealed jack-up of lid is sealed to the oil gas backpressure that produces in the tank wagon jar, causes the oil gas that the loading in-process produced and directly discharges in the atmosphere, the polluted environment with cause the incident, also caused oil gas recovery inefficacy and oil gas waste simultaneously.
Chinese patent 201610276525.7: an internal bracing type sealing device discloses a pneumatic internal bracing type sealing device which is arranged on a vertical pipe of an upper-mounted crane pipe and is characterized by comprising a sealing cover, a sealing gasket, an oil filling pipe, an oil filling tank opening, a four-bar mechanism and an oblique cone, wherein the four-bar mechanism and the oblique cone are arranged in the oil filling tank opening; the four-bar linkage is suspended on the sealing cover through a pin shaft and swings radially by taking the pin shaft as a center; the inclined cone is sleeved on the outer diameter of the oil filling pipe and can move up and down along the oil filling pipe; the lowermost connecting rod of the four-connecting-rod mechanism is a moving rod, one end of the moving rod is provided with a round wheel, and the other end of the moving rod is provided with a triangular block; the round wheel of the moving rod is tangent to the conical surface of the oblique cone, so that the moving rod is vertical to the oblique cone. The number of the four-bar linkage mechanisms is 3, and the 3 four-bar linkage mechanisms are arranged in equal parts relative to the central shaft of the oil filling pipe. The oblique angle of the conical surface of the oblique cone is alpha, the friction coefficient is k, and tan alpha is less than or equal to k. The sealing cover is arranged on the upper end face of the oil filling tank opening and used for sealing the oil filling tank opening. And the sealing cover is provided with an oil gas recovery pipe, so that oil gas can be conveyed into the oil gas recovery device. The sealing gasket is arranged at the bottom of the sealing cover and is aligned with the periphery of the sealing cover; and a through hole is formed in the middle of the sealing cover and the sealing gasket. One end of the oil filling pipe vertically extends into the oil filling tank opening through the through hole. The oil injection pipe is connected with the sealing cover through a connecting flange, and the connecting flange is fixed on the sealing cover through a fastening screw, so that the sealing cover, the sealing gasket and the oil injection pipe are connected into a whole. The sealing cover, the sealing gasket and the oil filling pipe are coaxially arranged; the sealing gasket is made of soft rubber. The four-connecting-rod structure is adopted, the number of hinge points of the structure is large, the installation is inconvenient, the four-connecting-rod structure and the inclined cone both use the oil filling pipe as the center, the inclined cone moves up and down along the oil filling pipe and needs to process the outer surface of the oil filling pipe, the structure cannot be self-locked when adopting air cylinder power, hydraulic oil leakage is easy to pollute loading oil products when adopting an oil cylinder, the structure of the whole sealing device is complex, and the manufacturing cost is high.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a novel sealing device with a tensioning structure, which has the advantages of simple structure, low manufacturing cost, convenience in installation, reliable sealing, safety and environmental friendliness, and can be suitable for tank openings of tank cars with different apertures.
In order to solve the technical problems, the invention adopts the technical scheme that: a novel sealing device with a tensioning structure comprises an oil injection pipe, a sealing cover, a sealing gasket, a tank car tank opening, a rectangular guide pipe, a guide rod, a tensioning plate, a trapezoidal sliding block, a connecting ring, a fixing ring, a limiting pin, a supporting plate, a trapezoidal nut and a screw rod, wherein the sealing device with the tensioning structure is arranged in the tank car tank opening; one end of the tensioning plate is embedded into the trapezoidal nut and the trapezoidal slider conical surface groove, and the screw drives the trapezoidal nut to move up and down in the rectangular guide pipe.
When the trapezoidal nut and the trapezoidal sliding block move upwards, the tensioning plate is pushed by the trapezoidal nut and the trapezoidal sliding block to move horizontally outwards and is tensioned with the inner wall of the tank opening of the tank car.
A limiting pin is fixed at the bottom of the tongue at the lower end of the tensioning plate, the limiting pin moves in the supporting plate groove, one end of the limiting pin is hung at the bottom of the supporting plate, and the tensioning plate is prevented from moving upwards and failing due to the action force of the tensioning plate and a tank opening of the tank car when the trapezoidal nut and the trapezoidal sliding block move upwards.
Preferably, the number of the tensioning structures is 3, and the 3 tensioning structure devices are arranged in equal parts by taking the central axis of the oil injection pipe as a radius.
Preferably, the number of said trapezoidal nuts and screws is 1.
Preferably, the number of trapezoidal sliding blocks and guide rods is 2.
Preferably, the sealing cover is arranged on the upper end surface of the tank opening of the oiling tank car and used for sealing the tank opening of the oiling tank car.
Preferably, the sealing cover is provided with a pneumatic motor, a hydraulic motor or an electric motor.
Preferably, the screw is directly connected with the pneumatic motor, the hydraulic motor or the electric motor, and the pneumatic motor, the hydraulic motor or the electric motor drives the screw and the trapezoidal nut to move up and down in the rectangular guide pipe.
Preferably, the trapezoidal nut is connected with the trapezoidal sliding block through a connecting ring, and when the trapezoidal nut moves up and down, the connecting ring drives the trapezoidal sliding block to move up and down in the rectangular guide pipe by taking the guide rod as an axis.
Preferably, when the trapezoidal nut and the trapezoidal sliding block move upwards, the tensioning plate is pushed by the trapezoidal nut and the trapezoidal sliding block to move horizontally outwards and is tensioned with the inner wall of the tank opening of the tank car.
Preferably, a limiting pin is fixed at the bottom of the tongue at the lower end of the tensioning plate, the limiting pin slides in the supporting plate groove, one end of the limiting pin is hung at the bottom of the supporting plate, and the tensioning plate is prevented from moving upwards due to the action force of the tensioning plate and the tank opening of the tank car when the trapezoidal nut and the trapezoidal sliding block move upwards.
Preferably, one end of the oil filling pipe vertically extends into the tank opening of the oil tank truck through the tensioning structure.
Preferably, the oil filling pipe and the sealing cover are provided with a sealing gasket, the sealing gasket is fixed at the lower end of the sealing cover and connected with the sealing cover into a whole, so that a tank opening of the tank car is sealed, and reliable closed car loading is realized.
Preferably, the sealing cover, the sealing gasket and the oil filling pipe are coaxially arranged, and the sealing gasket is made of oil-resistant soft rubber.
Compared with the prior art, the invention has the advantages that: (1) the sealing device with the tensioning structure provided by the invention has the advantages of simple structure, convenience in installation, low cost, capability of realizing self-locking, reliability in sealing, safety and environmental friendliness, and can be suitable for tank car mouths with different calibers. (2) The sealing device with the tensioning structure provided by the invention can realize two actions: one action is centered, so that the sealing cover is concentric with the tank opening of the tank car, and the sealing cover is prevented from deviating; the second action is firstly tensioning and then tensioning, and the sealing gasket on the sealing cover is pressed against the tank opening of the tank car to realize sealing and can be self-locked. (3) The sealing device with the tensioning structure provided by the invention adopts the tensioning plate, the trapezoidal nut screw rod, the trapezoidal slide block, the rectangular guide pipe and the guide rod, the oil injection pipe, the sealing cover and the sealing gasket are connected into a whole by the rectangular guide pipe, the tank opening of the tank car is sealed, and then the closed car loading is realized.
Drawings
Fig. 1 is a schematic structural view of an initial position of a sealing device with a novel tensioning structure provided by the invention;
fig. 2 is a schematic structural view of the sealing device with the novel tensioning structure after tensioning.
The specific meanings of the symbols in the drawings are as follows: 1: an oil filling pipe; 2: a sealing cover; 3: a gasket; 4: a tank opening of the tank car; 5: a rectangular guide tube; 6: a guide bar; 7: a tensioning plate; 8: a trapezoidal slider; 9: a connecting ring; 10: a fixing ring; 11: a spacing pin; 12: a support plate; 13: a trapezoidal nut; 14: a screw.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings.
Referring to fig. 1 and 2, fig. 1 and 2 are schematic structural views of the novel sealing device with the tensioning structure provided by the invention. The invention provides a novel sealing device with a tensioning structure, which comprises: the device comprises an oil injection pipe 1, a sealing cover 2, a sealing gasket 3, a tank car tank opening 4, a rectangular guide pipe 5, a guide rod 6, a tensioning plate 7, a trapezoidal sliding block 8, a connecting ring 9, a fixing ring 10, a limiting pin 11, a supporting plate 12, a trapezoidal nut 13 and a screw rod 14.
The sealing cover 2 is arranged on the upper end surface of the tank opening 4 of the oiling tank car, and the sealing gasket 3 is arranged at the lower end of the sealing cover 2, has the same diameter as the sealing cover 2 and is used for sealing the tank opening 4 of the oiling tank car; one end of the oil filling pipe 1 is passed through in the sealing cover 2 vertically stretches into the tank opening 4 of the oil tank truck, the sealing cover 2 is sealed and is sealed 3 and the oil filling pipe 1 are connected into a whole, and the sealing cover 2 is sealed and is sealed 3 and the oil filling pipe 1 are coaxially arranged.
The rectangular guide pipe 5, the guide rod 6, the tension plate 7, the trapezoidal slider 8, the connecting ring 9, the fixing ring 10, the limiting pins 11, the supporting plate 12, the trapezoidal nut 13 and the screw 14 are arranged in the tank car tank opening 4 at the lower end of the sealing cover 2, the number of the tension structures is 3, the 3 tension structure devices are arranged in equal parts by taking the central axis of the oil injection pipe as a radius, the trapezoidal nut 13 and the trapezoidal slider 8 are driven by the screw 14 to move up and down in the rectangular guide pipe 5, one end of the tension plate 7 is embedded into the trapezoidal nut 13 and the conical surface groove of the trapezoidal slider 8, when the trapezoidal nut 13 and the trapezoidal slider 8 move up, the tension plate 7 is pushed by the trapezoidal nut 13 and the trapezoidal slider 8 to move horizontally and outwards and is tensioned with the inner wall of the tank car tank opening 4, the limiting pin 11 is fixed at the bottom of the tongue at the lower end of the tension plate 7, the limiting pin 11 moves in the groove of the supporting plate 12, one end of the limiting pin 11 is hung at the bottom of the supporting plate 12, and the tension plate 7 is prevented from moving upwards and failing due to the acting force of the tension plate 7 and the tank opening 4 of the tank car when the trapezoidal nut 13 and the trapezoidal slider 8 move upwards. The novel sealing device with the tensioning structure is used when the tank car is filled with oil products, the sealing device with the tensioning structure is placed on the end surface of the tank opening 4 of the tank car, the pneumatic motor, the hydraulic motor or the motor arranged on the sealing cover 2 is started, the pneumatic motor, the hydraulic motor or the motor drives the screw rod 14 to rotate, thereby drive trapezoidal nut 13 trapezoidal slider 8 along rectangular 5 guide bar 6 rebound, trapezoidal nut 13 trapezoidal slider 8 rebound in-process will rise the tight board 7 and release the level outwards and rise tightly with the tight 4 inner walls of tank car jar mouth, tight board 7 lower extreme tongue bottom of rising is fixed with spacer pin 11, spacer pin 11 is at 12 inslot shifts in the layer board, the layer board 12 bottom is hung to spacer pin 11 one end, it leads to rising to rise tight board 7 and upward movement to prevent that tight board 7 and the 4 effort of tank car jar mouth of rising from leading to rising when trapezoidal nut 13 and trapezoidal slider 8 rebound from rising, keep rising all the time tight board 7 and tank car jar mouth 4 to rise tightly. In addition, the tensioning plate 7 and the tank opening 4 generate downward tension after being tensioned, so that the sealing performance of the sealing gasket 3 and the tank opening 4 is ensured. The screw 14 mechanism has good self-locking performance, and the sealing gasket 3 can not be separated from the tank opening 4 of the tank car even if the pneumatic equipment leaks, the air pressure fluctuates or the air is cut off.
After the oil product loading is finished, the pneumatic motor, the hydraulic motor or the motor drives the screw rod 14 to rotate in the opposite direction, so that the trapezoidal nut 13 is driven to drive the trapezoidal sliding block 8 to move downwards through the connecting ring 9, the tensioning plate 7 is separated from the inner wall of the tank car tank opening 4, the sealing gasket 3 of the sealing cover 2 and the oil injection pipe 1 are lifted away from the tank opening, and the next filling is waited.
The novel sealing device with the tensioning structure provided by the invention is simple in structure, convenient to install, low in cost, capable of realizing self-locking, reliable in sealing, safe and environment-friendly, and capable of adapting to tank mouths with different calibers. In the process of oil filling, the device mainly completes two actions, wherein one action is centering, namely the sealing cover 2 is concentric with the tank opening 4, so that the sealing cover 2 is prevented from deviating to cause oil gas leakage; the other action is to press the sealing gasket 3 at the bottom of the sealing cover 2 to the tank opening 4 of the tank car to realize sealing.
The above-described series of detailed descriptions are merely specific to possible embodiments of the present invention, and they are not intended to limit the scope of the present invention, and various changes made without departing from the gist of the present invention within the knowledge of those skilled in the art are included in the scope of the present invention.
Claims (12)
1. A sealing device with a tensioning structure comprises an oil injection pipe, a sealing cover, a sealing gasket, a tank car tank opening, a rectangular guide pipe, a guide rod, a tensioning plate, a trapezoidal sliding block, a connecting ring, a fixing ring, a limiting pin, a supporting plate, a trapezoidal nut and a screw rod, wherein the sealing device with the tensioning structure is arranged in the tank car tank opening; one end of the tension plate is embedded into a trapezoidal nut and a trapezoidal slider groove, the lower end of the tension plate extends into the trapezoidal nut, the trapezoidal slider and the supporting plate, the screw rod drives the trapezoidal nut to move up and down in the rectangular guide pipe, the trapezoidal nut is connected with the trapezoidal slider through the connecting ring, the connecting ring drives the trapezoidal slider to move up and down in the rectangular guide pipe by taking the guide rod as an axis, when the trapezoidal nut and the trapezoidal slider move upwards, the tension plate is pushed by the trapezoidal nut and the conical surface of the trapezoidal slider to move horizontally outwards and is tensioned with the inner wall of the tank car opening, a limiting pin is fixed on the tension plate and moves in the supporting plate groove, one end of the limiting pin is hung at the bottom of the supporting plate, and the tension plate and the tank car opening acting force can cause upward movement and tension failure of the tension plate when the trapezoidal nut and the trapezoidal slider move upwards.
2. The tension structure sealing device according to claim 1, wherein the number of the trapezoidal nut and trapezoidal slider mechanisms is 2 or more, and the 2 or more trapezoidal nut and trapezoidal slider mechanisms are arranged in a radial symmetry or equal distribution manner along the center of the sealing cover.
3. The tensioning structure sealing device according to claim 1, wherein the trapezoidal nut and the trapezoidal slider are single-sided tapered groove.
4. The tensioning structure sealing device according to claim 1, wherein one end of the tensioning plate is embedded in the trapezoidal nut and the trapezoidal slider conical surface groove.
5. The tensioning structure sealing device according to claim 4, wherein one end of the tensioning plate embedded in the trapezoidal nut and the trapezoidal slider conical groove can be T-shaped, dovetail-shaped, rectangular or round.
6. The tensioning structure sealing device according to claim 1, wherein the tongue at the lower end of the tensioning plate extends into the trapezoidal nut and between the trapezoidal sliding block and the supporting plate.
7. The tensioning structure sealing device according to claim 6, wherein a limiting pin is fixed at the bottom of the tongue at the lower end of the tensioning plate to hang the supporting plate.
8. The sealing device of a tensioning structure according to claim 1, wherein the tensioning plate moves horizontally outwards on the supporting plate to tension the inner wall of the tank opening of the tank car.
9. The sealing device of tension structure as claimed in claim 1, wherein the guiding tube can be rectangular tube, round tube, section steel, round steel, etc.
10. The tension structure sealing device according to claim 2, wherein the trapezoidal nut and the trapezoidal slider move up and down along the screw rod and the guide rod.
11. The tension structure sealing device according to claim 1, wherein the rectangular guide tube, the guide rod and the screw rod are connected with the sealing cover at one end and connected with the supporting plate and the fixing ring at the other end.
12. The tension structure sealing device according to claim 9, wherein the power for the trapezoidal nut and the trapezoidal slider to move up and down along the screw rod and the guide rod can be manual, pneumatic, hydraulic or electric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010458359.9A CN113735047A (en) | 2020-05-27 | 2020-05-27 | Sealing device with tensioning structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010458359.9A CN113735047A (en) | 2020-05-27 | 2020-05-27 | Sealing device with tensioning structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113735047A true CN113735047A (en) | 2021-12-03 |
Family
ID=78723537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010458359.9A Pending CN113735047A (en) | 2020-05-27 | 2020-05-27 | Sealing device with tensioning structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113735047A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116216625A (en) * | 2023-03-27 | 2023-06-06 | 江苏鑫岳通能源装备制造有限公司 | Sealing device suitable for tank opening inclination of tank wagon |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201992012U (en) * | 2011-01-24 | 2011-09-28 | 北京新典恒益科技有限公司 | Chain tensioning device |
| CN102923632A (en) * | 2012-10-31 | 2013-02-13 | 中国石油化工股份有限公司 | Seal device and seal method for hermetically entrucking loading arm |
| CN204434266U (en) * | 2015-01-30 | 2015-07-01 | 信众 | With the oil filling riser seal cover cap connecing oil bucket |
| CN205363570U (en) * | 2015-12-20 | 2016-07-06 | 重庆市丰蕙达金属锻造有限公司 | Half gland retainer plate of back sedan -chair is polished and is used fixing device |
| CN105752926A (en) * | 2016-04-29 | 2016-07-13 | 连云港天邦科技开发有限公司 | Novel inner supporting type sealing device |
| CN205680913U (en) * | 2016-05-30 | 2016-11-09 | 林机 | A kind of novel crimp height stepless speed changing mechanism of terminal crimping connector |
| CN206449167U (en) * | 2017-02-13 | 2017-08-29 | 中山精量衡器制造有限公司 | A kind of belt tension installing mechanism of Fast Installation timing belt |
| CN209242580U (en) * | 2018-10-31 | 2019-08-13 | 六耐泵业(大连)有限公司 | A kind of pump testing stand mechanical type lifting device |
-
2020
- 2020-05-27 CN CN202010458359.9A patent/CN113735047A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201992012U (en) * | 2011-01-24 | 2011-09-28 | 北京新典恒益科技有限公司 | Chain tensioning device |
| CN102923632A (en) * | 2012-10-31 | 2013-02-13 | 中国石油化工股份有限公司 | Seal device and seal method for hermetically entrucking loading arm |
| CN204434266U (en) * | 2015-01-30 | 2015-07-01 | 信众 | With the oil filling riser seal cover cap connecing oil bucket |
| CN205363570U (en) * | 2015-12-20 | 2016-07-06 | 重庆市丰蕙达金属锻造有限公司 | Half gland retainer plate of back sedan -chair is polished and is used fixing device |
| CN105752926A (en) * | 2016-04-29 | 2016-07-13 | 连云港天邦科技开发有限公司 | Novel inner supporting type sealing device |
| CN205680913U (en) * | 2016-05-30 | 2016-11-09 | 林机 | A kind of novel crimp height stepless speed changing mechanism of terminal crimping connector |
| CN206449167U (en) * | 2017-02-13 | 2017-08-29 | 中山精量衡器制造有限公司 | A kind of belt tension installing mechanism of Fast Installation timing belt |
| CN209242580U (en) * | 2018-10-31 | 2019-08-13 | 六耐泵业(大连)有限公司 | A kind of pump testing stand mechanical type lifting device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116216625A (en) * | 2023-03-27 | 2023-06-06 | 江苏鑫岳通能源装备制造有限公司 | Sealing device suitable for tank opening inclination of tank wagon |
| CN116216625B (en) * | 2023-03-27 | 2023-10-13 | 江苏鑫岳通能源装备制造有限公司 | Sealing device suitable for tank opening inclination of tank wagon |
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Application publication date: 20211203 |