CN113154148B - Linear electromagnetic valve with multiple joint modes - Google Patents
Linear electromagnetic valve with multiple joint modes Download PDFInfo
- Publication number
- CN113154148B CN113154148B CN202110459077.5A CN202110459077A CN113154148B CN 113154148 B CN113154148 B CN 113154148B CN 202110459077 A CN202110459077 A CN 202110459077A CN 113154148 B CN113154148 B CN 113154148B
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- Prior art keywords
- pipeline
- ring
- adjusting
- fixing
- joint
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
- F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
- F16L21/035—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings placed around the spigot end before connection
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/02—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
- F16L27/0804—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another
Abstract
The invention discloses a linear electromagnetic valve with a plurality of joint modes. The electromagnetic valve comprises an electromagnetic valve body, joint adjusting devices and attaching devices, wherein joint pipelines are fixedly arranged at two ends of the electromagnetic valve body, the joint adjusting devices are used for adjusting the directions of joints according to the trend of pipelines, the joint adjusting devices are movably connected with the joint pipelines, the attaching devices are used for adjusting the joints easily when the joint adjusting devices are used for adjusting the joints, and the attaching devices are fixedly connected with the joint adjusting devices. The invention discloses a linear electromagnetic valve with multiple joint modes, which can solve the problem that when the trend of a pipeline is changed during the transformation of the existing equipment, a new electromagnetic valve is selected again according to a new route.
Description
Technical Field
The invention relates to the technical field of electromagnetic valves, in particular to a linear electromagnetic valve with multiple joint modes.
Background
Solenoid valves are electromagnetic controlled industrial equipment, are automatic basic elements for controlling fluids, and belong to actuators. For use in industrial control systems to adjust the direction, flow, velocity and other parameters of the medium. The solenoid valve can cooperate with different circuits to realize the expected control, and the liquid flow direction in the solenoid valve and the moving direction of the solenoid valve core are T-shaped or U-shaped in terms of common structure.
For example, the solenoid valve disclosed in patent No. 201280073133.0 has a coil and a solenoid moving core portion designed on the top of a valve body, a fluid inlet below the valve body, and a fluid outlet provided on the side wall of a valve chamber. The inlet, the outlet and the electromagnetic moving core form a T-shaped structure.
For example, patent No. 201420013251.9 discloses a pilot-operated solenoid valve, in which an air inlet and an air outlet are both arranged at the bottom of a valve body, an electromagnetic moving core is arranged above the valve body, and a U-shaped structure is formed among the inlet, the outlet and the electromagnetic moving core.
For example, patent No. 201510517834.4 discloses a linear solenoid valve, in which an air inlet and an air outlet are respectively arranged at two sides of a valve body, an electromagnetic moving core is arranged in the middle of the valve body, and a linear structure is formed among the inlet, the outlet and the electromagnetic moving core.
These types of solenoid valves all need intake pipe and outlet duct all to need rational layout just can use, need select different types of solenoid valves according to the trend of pipeline, and when the equipment transformation takes place, when need change the trend of pipeline moreover, original solenoid valve just is not practical, need select new solenoid valve according to new route, and very troublesome, and increased the cost input.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention discloses a linear electromagnetic valve with a plurality of joint modes, which can solve the problem that when the existing equipment is transformed, when the trend of a pipeline is changed, a new electromagnetic valve is selected again according to a new route.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme:
the utility model provides a straight line solenoid valve with multiple joint mode, includes solenoid valve body, connects adjusting device and laminating device, solenoid valve body both ends are all fixed to be equipped with and connect the pipeline, connect adjusting device and be used for adjusting the direction of joint according to the trend of pipeline, connect adjusting device and connect pipeline swing joint, laminating device is used for connecting adjusting device and can relax adjustment when adjusting the joint and accomplish the field, laminating device and connect adjusting device fixed connection.
The preferred technical scheme, connect adjusting device is equipped with two, connect adjusting device includes the installation pipeline, connect pipeline inside fixed first sealing ring that is equipped with, the installation pipeline is pegged graft inside the joint pipeline, and offsets with first sealing ring, be equipped with first sealing washer between first sealing ring and the joint pipeline, first sealing washer is inlayed in first sealing ring, joint pipeline outside threaded connection has first solid fixed ring, first solid fixed ring cover is on the installation pipeline, the last fixed first spacing ring that is equipped with of installation pipeline, first spacing ring is located inside the first solid fixed ring, and offsets with first solid fixed ring tip rotation, installation pipeline one end is fixed with the collar.
According to the preferred technical scheme, the outer side of the first fixing ring is provided with first anti-skid patterns.
The preferable technical scheme, collar one end is established to first inclined plane, and the contained angle of first inclined plane and ground is established to 45, the circumference is arranged on the first inclined plane has a plurality of horizontal fixed orifices and vertical fixed orifices, horizontal fixed orifices equals with vertical fixed orifices quantity and internal diameter equals, and staggers each other, every adjacent two contained angle between the horizontal fixed orifices equals, every adjacent two the angle between the vertical fixed orifices equals, be connected with the adjusting pipeline on the first inclined plane.
The preferred technical scheme, adjust pipeline one end and establish to the second inclined plane, and the contained angle of second inclined plane and ground is 45, the laminating of second inclined plane and first inclined plane offsets, be equipped with the second sealing washer between second inclined plane and the first inclined plane, the second sealing washer is inlayed on first inclined plane, threaded connection has the second solid fixed ring on the adjusting pipeline, sliding grafting has a plurality of dead levers in the second solid fixed ring, dead lever and horizontal fixed orifices quantity are equal, and every adjacent two the angle between the dead lever equals, dead lever one end and horizontal fixed orifices or vertical fixed orifices threaded connection, the other end is fixed and is equipped with first gear, adjusting pipeline inside is fixed and is equipped with laminating device.
According to the preferred technical scheme, the second fixing ring is rotationally connected with the fixing pipe, the gear ring is fixedly arranged on the inner wall of the fixing pipe, the first gear is positioned inside the fixing pipe and meshed with the gear ring, and the top end of the first gear abuts against the end part of the fixing pipe.
The preferable technical scheme, laminating device is equipped with two, and one is located inside the adjusting pipe, and another is located inside the installing pipe, laminating device includes the installation section of thick bamboo, a plurality of connecting pieces are fixedly equipped with in the installation section of thick bamboo outside, connecting piece one end is fixed with adjusting pipe inner wall, the inside fixed spring that is equipped with of installation section of thick bamboo, spring one end is fixed and is equipped with the installation pole, the installation pole slides and peg graft in the installation section of thick bamboo, the installation pole top rotates and is connected with the connecting rod, connecting rod top fixedly is equipped with the go-between, two the go-between cup joints together.
According to the preferred technical scheme, the outer side of the fixed pipe is provided with second anti-skid patterns.
(III) beneficial effects
The invention discloses a linear electromagnetic valve with various joint modes, which has the following advantages:
the installation pipeline and the adjusting pipeline can be horizontally fixed and also can be vertically fixed, the installation pipeline can rotate relative to the joint pipeline, the adjusting pipelines at the two ends of the electromagnetic valve body can be in different states in advance through cooperation adjustment, and the T, U and I-shaped different installation and rotation requirements can be met.
The first inclined plane of the installation pipeline is provided with a horizontal fixing hole and a vertical fixing hole, when the adjusting pipe and the installation pipeline are in different states, the second fixing ring is screwed according to the horizontal state or the vertical state when the adjusting pipe is in the adjusting pipeline, the angle of the second fixing rod is adjusted to be matched with the horizontal fixing hole or the vertical fixing hole to fix the adjusting pipeline and the installation pipeline together, wherein when the adjusting pipeline is in the horizontal state, the fixing rod is matched with the horizontal fixing hole, and when the adjusting pipeline is in the vertical state, the fixing rod is matched with the vertical fixing hole.
When the fixed pipe rotates around the second fixed ring, the plurality of first gears are driven to rotate simultaneously, and simultaneously the bottom end of the fixed rod is driven to be in threaded fixation with the vertical fixed hole or the horizontal fixed hole.
The installation pipeline and the adjusting pipeline are internally provided with the attaching devices, the connecting rings between the two attaching devices are sleeved together, and when the adjusting pipeline is subjected to reversing adjustment, the two attaching devices can tightly attach the installation pipeline and the adjusting pipeline together and cannot slide, so that the fixing is facilitated.
The first anti-skid patterns and the second anti-skid patterns can be used for adjusting the first fixing ring and the fixing tube more easily.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
It is evident that the drawings in the following description are only some embodiments of the present invention and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is an overall schematic of an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a joint adjustment device according to an embodiment of the present invention;
FIG. 3 is an enlarged view of area A of FIG. 2;
FIG. 4 is a schematic view of an installation conduit according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a conditioning duct according to an embodiment of the present invention;
FIG. 6 is a schematic view of a bonding apparatus according to an embodiment of the present invention;
fig. 7 is an enlarged view of region B in fig. 2.
Wherein: the electromagnetic valve comprises a solenoid valve body, a joint pipeline 2, a joint adjusting device 3, a joint attaching device 4, a mounting pipeline 5, a first sealing ring 6, a first sealing ring 7, a first fixing ring 8, a first limiting ring 9, a mounting ring 10, a first anti-skid pattern 11, a first inclined surface 12, a horizontal fixing hole 13, a vertical fixing hole 14, an adjusting pipeline 15, a second inclined surface 16, a second sealing ring 17, a second fixing ring 18, a fixing rod 19, a first gear 20, a fixing pipe 21, a gear ring 22, a mounting cylinder 23, a connecting piece 24, a spring 25, a mounting rod 26, a connecting ring 27, a second anti-skid pattern 28 and a connecting rod 29.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments.
All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 7, the linear electromagnetic valve with multiple joint modes according to the embodiment of the invention comprises an electromagnetic valve body 1, joint adjusting devices and a jointing device 4, wherein joint pipelines 2 are fixedly arranged at two ends of the electromagnetic valve body 1, the joint adjusting devices are used for adjusting the directions of joints according to the trend of pipelines, the joint adjusting devices are movably connected with the joint pipelines 2, the jointing device 4 is used for easily adjusting the joints when the joint adjusting devices are used for adjusting the joints, and the jointing device 4 is fixedly connected with the joint adjusting devices.
As shown in fig. 1 to 3, the joint adjusting device is provided with two joint adjusting devices, the joint adjusting device comprises a mounting pipeline 5, a first sealing ring 6 is fixedly arranged inside the joint pipeline 2, the mounting pipeline 5 is inserted inside the joint pipeline 2 and props against the first sealing ring 6, a first sealing ring 7 is arranged between the first sealing ring 6 and the joint pipeline 2, the first sealing ring 7 is embedded in the first sealing ring 6, a first fixing ring 8 is connected to the outer side of the joint pipeline 2 in a threaded manner, the first fixing ring 8 is sleeved on the mounting pipeline 5, a first limiting ring 9 is fixedly arranged on the mounting pipeline 5, the first limiting ring 9 is positioned inside the first fixing ring 8 and rotatably props against the end part of the first fixing ring 8, and a mounting ring 10 is fixedly arranged at one end of the mounting pipeline 5, wherein the mounting pipeline 5 can rotate relatively to the joint pipeline 2, and the first fixing ring 8 can fix the joint pipeline 2 and the mounting pipeline 5 along the threaded direction.
As shown in fig. 4, the first fixing ring 8 is provided with first anti-slip patterns 11 on the outer side.
As shown in fig. 2 and fig. 4, one end of the mounting ring 10 is set to be a first inclined plane 12, an included angle between the first inclined plane 12 and the ground is set to be 45 °, a plurality of horizontal fixing holes 13 and vertical fixing holes 14 are circumferentially arranged on the first inclined plane 12, the number of the horizontal fixing holes 13 and the number of the vertical fixing holes 14 are equal, the inner diameters are equal, the horizontal fixing holes and the vertical fixing holes are staggered, an included angle between every two adjacent horizontal fixing holes 13 is equal, an included angle between every two adjacent vertical fixing holes 14 is equal, and an adjusting pipeline 15 is connected to the first inclined plane 12.
As shown in fig. 2 and fig. 5, one end of the adjusting pipe 15 is set to be a second inclined plane 16, an included angle between the second inclined plane 16 and the ground is 45 °, the second inclined plane 16 is abutted against the first inclined plane 12, a second sealing ring 17 is installed between the second inclined plane 16 and the first inclined plane 12, the second sealing ring 17 is inlaid on the first inclined plane 12, a second fixing ring 18 is connected to the adjusting pipe 15 in a threaded manner, a plurality of fixing rods 19 are inserted in the second fixing ring 18 in a sliding manner, the number of the fixing rods 19 is equal to that of the horizontal fixing holes 13, the angles between every two adjacent fixing rods 19 are equal, one end of each fixing rod 19 is in threaded connection with the horizontal fixing holes 13 or the vertical fixing holes 14, a first gear 20 is fixedly installed at the other end of each fixing rod 19, an abutting device 4 is fixedly installed inside the adjusting pipe 15, the adjusting pipe 15 can be horizontally fixed with the mounting pipe 5, the fixing rods 19 are matched with the horizontal fixing holes 13 also can be vertically fixed, and the fixing rods 19 are matched with the vertical fixing holes 14 when the adjusting pipe 15 is horizontally.
As shown in fig. 5, the second fixing ring 18 is rotatably connected with a fixing tube 21, a gear ring 22 is fixedly mounted on the inner wall of the fixing tube 21, the first gear 20 is located inside the fixing tube 21 and meshed with the gear ring 22, the top end of the first gear 20 abuts against the end of the fixing tube 21, and when the fixing tube 21 rotates around the second fixing ring 18, the plurality of first gears 20 are driven to rotate simultaneously, and meanwhile, the bottom end of the fixing rod 19 is driven to be fixed with the vertical fixing hole 14 or the horizontal fixing hole 13 in a threaded manner.
As shown in fig. 2, 6 and 7, the laminating device 4 is provided with two, one is located inside the adjusting pipeline 15, the other is located inside the installing pipeline 5, the laminating device 4 comprises an installing cylinder 23, a plurality of connecting pieces 24 are fixedly arranged on the outer side of the installing cylinder 23, one end of each connecting piece 24 is fixedly connected with the inner wall of the adjusting pipeline 15, a spring 25 is fixedly arranged inside the installing cylinder 23, an installing rod 26 is fixedly arranged at one end of each spring 25, the installing rod 26 is slidably inserted into the installing cylinder 23, a connecting rod 29 is rotatably connected to the top end of each installing rod 26, a connecting ring 27 is fixedly arranged at the top end of each connecting rod 29, and the two connecting rings 27 are sleeved together.
As shown in fig. 5, the outer side of the fixing tube 21 is provided with a second anti-slip pattern 28.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (4)
1. A solenoid valve in the shape of a line having a plurality of joint means, comprising;
the electromagnetic valve comprises an electromagnetic valve body, wherein joint pipelines are fixedly arranged at two ends of the electromagnetic valve body;
the joint adjusting device is used for adjusting the direction of the joint according to the trend of the pipeline and is movably connected with the joint pipeline;
the joint adjusting device is used for adjusting the joint easily, and is fixedly connected with the joint adjusting device;
the two connector adjusting devices are arranged, each connector adjusting device comprises a mounting pipeline, a first sealing ring is fixedly arranged in each connector pipeline, each mounting pipeline is inserted into each connector pipeline and abuts against each first sealing ring, a first sealing ring is arranged between each first sealing ring and each connector pipeline and is embedded in each first sealing ring, a first fixing ring is connected with the outer side of each connector pipeline in a threaded mode, each first fixing ring is sleeved on each mounting pipeline, a first limiting ring is fixedly arranged on each mounting pipeline and located in each first fixing ring and abuts against the end portion of each first fixing ring in a rotating mode, and one end of each mounting pipeline is fixedly provided with a mounting ring;
one end of the mounting ring is set to be a first inclined plane, the included angle between the first inclined plane and the ground is set to be 45 degrees, a plurality of horizontal fixing holes and vertical fixing holes are circumferentially arranged on the first inclined plane, the number of the horizontal fixing holes is equal to that of the vertical fixing holes, the inner diameters of the horizontal fixing holes and the vertical fixing holes are equal, the horizontal fixing holes and the vertical fixing holes are staggered, the included angle between every two adjacent horizontal fixing holes is equal, the angle between every two adjacent vertical fixing holes is equal, and an adjusting pipeline is connected to the first inclined plane;
the device comprises a first inclined plane, a first sealing ring, a second sealing ring, a first fixing ring, a plurality of fixing rods, a second sealing ring, a first gear, a first fixing hole and a second fixing hole, wherein one end of the adjusting pipeline is set to be a second inclined plane, the included angle between the second inclined plane and the ground is 45 degrees, the second inclined plane is abutted against the first inclined plane, the second sealing ring is arranged between the second inclined plane and the first inclined plane, the second sealing ring is inlaid on the first inclined plane, the adjusting pipeline is connected with the second fixing ring in a threaded manner, the second fixing ring is inserted with the plurality of fixing rods in a sliding manner, the number of the fixing rods is equal to that of the horizontal fixing holes, the angles between every two adjacent fixing rods are equal, one end of the fixing rods is in threaded connection with the horizontal fixing holes or the vertical fixing holes, the first gear is fixedly arranged at the other end of the fixing rods, and an attaching device is fixedly arranged inside the adjusting pipeline;
the laminating device is provided with two, one is located inside the adjusting pipeline, the other is located inside the installing pipeline, the laminating device comprises an installing cylinder, a plurality of connecting pieces are fixedly arranged on the outer side of the installing cylinder, one end of each connecting piece is fixed with the inner wall of the adjusting pipeline, a spring is fixedly arranged inside the installing cylinder, one end of each spring is fixedly provided with an installing rod, the installing rods are slidably inserted into the installing cylinder, the top ends of the installing rods are rotationally connected with connecting rods, connecting rings are fixedly arranged on the top ends of the connecting rods, and the two connecting rings are sleeved together.
2. The in-line solenoid valve with multiple connector modes according to claim 1, wherein: the outer side of the first fixing ring is provided with first anti-skid patterns.
3. The in-line solenoid valve with multiple connector modes according to claim 1, wherein: the fixed pipe is rotationally connected to the second fixed ring, the gear ring is fixedly arranged on the inner wall of the fixed pipe, the first gear is located inside the fixed pipe and meshed with the gear ring, and the top end of the first gear abuts against the end part of the fixed pipe.
4. The in-line solenoid valve with multiple connector modes according to claim 1, wherein: the outer side of the fixed pipe is provided with second anti-skid patterns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110459077.5A CN113154148B (en) | 2021-04-27 | 2021-04-27 | Linear electromagnetic valve with multiple joint modes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110459077.5A CN113154148B (en) | 2021-04-27 | 2021-04-27 | Linear electromagnetic valve with multiple joint modes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113154148A CN113154148A (en) | 2021-07-23 |
| CN113154148B true CN113154148B (en) | 2023-05-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110459077.5A Active CN113154148B (en) | 2021-04-27 | 2021-04-27 | Linear electromagnetic valve with multiple joint modes |
Country Status (1)
| Country | Link |
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| CN (1) | CN113154148B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1148284A1 (en) * | 2000-04-18 | 2001-10-24 | Von Roll Holding AG | Articulated pipe joint |
| FR2884584B1 (en) * | 2005-04-18 | 2011-02-18 | Saint Gobain Pont A Mousson | TUBULAR CONNECTION WITH VARIABLE ANGLE |
| CN202791048U (en) * | 2012-08-30 | 2013-03-13 | 东莞市东升压铸模具有限公司 | Pipe fitting with adjustable bending angle |
| CN204459344U (en) * | 2014-12-25 | 2015-07-08 | 厦门建霖工业有限公司 | A kind of rotatable tap |
| CN205155409U (en) * | 2015-11-28 | 2016-04-13 | 李友敏 | Universal rotary joint |
| CN110939807A (en) * | 2019-12-11 | 2020-03-31 | 滕州市华正软接头有限公司 | Ferrule joint convenient to use |
| CN212537056U (en) * | 2020-06-30 | 2021-02-12 | 甘肃农业大学 | A pipeline for fodder is carried |
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2021
- 2021-04-27 CN CN202110459077.5A patent/CN113154148B/en active Active
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