CN109764144B - Dual-mode throttling ball valve - Google Patents
Dual-mode throttling ball valve Download PDFInfo
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- CN109764144B CN109764144B CN201910126170.7A CN201910126170A CN109764144B CN 109764144 B CN109764144 B CN 109764144B CN 201910126170 A CN201910126170 A CN 201910126170A CN 109764144 B CN109764144 B CN 109764144B
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Abstract
The invention discloses a dual-mode throttling ball valve, which comprises a valve body, wherein a valve cavity is arranged in the valve body, the valve cavity is provided with a water inlet and a water outlet, a valve core is arranged in the valve body, and a control device is arranged on the valve core, and the dual-mode throttling ball valve is characterized in that: a main flow channel and a throttling channel which are mutually communicated are arranged in the valve core, the control device controls the main flow channel or the throttling channel to be communicated with the water inlet and the water outlet, a time-limited throttling device and a throttling valve are arranged in the throttling channel, a throttling valve core is arranged in the throttling valve, and the throttling valve core controls the flow rate of water flow through moving position; the time-limited throttling device comprises a first rack and a second rack, and the control device controls the first rack and the second rack to be separated to open the throttling channel; the invention can freely switch two output modes, can effectively throttle in a pressing type water outlet mode, and can prolong the service life of the sealing element.
Description
Technical Field
The invention relates to the technical field of control valves, in particular to a dual-mode throttling ball valve.
Background
The ball valve is a valve which drives a spherical valve core to rotate around the axis of a valve rod through the valve rod, and is provided with a valve body for opening and closing a flow path, a ball seat arranged in a mode of surrounding the valve body and a pressing ring arranged on the ball seat; ball valves can also be used for fluid regulation and control, mainly for cutting off or connecting media in pipelines, and are widely used in various industries.
The ball valve provided at present can not realize throttling and flow control, and can not freely adjust a throttling mode and a common mode, people usually only need a certain large-flow water flow at first, but do not have high utilization rate to the water flow of the second half section, thereby causing great waste.
Disclosure of Invention
The invention mainly aims to provide a dual-mode throttling ball valve which is used for solving the problems that the ball valve in the prior art cannot realize throttling and water is saved at the rear half section of a pressing type water outlet.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: a double-mode throttling ball valve comprises a valve body, wherein a valve cavity is arranged in the valve body, the valve cavity is provided with a water inlet and a water outlet, a valve core is arranged in the valve body, a control device is arranged on the valve core, a main flow passage and a throttling passage which are mutually communicated are arranged in the valve core, the throttling passage comprises a first throttling hole and a second throttling hole, the control device controls the main flow passage or the throttling passage to be communicated with the water inlet and the water outlet, a time-limited throttling device and a throttling valve are arranged in the throttling passage, a throttling valve core is arranged in the throttling valve, and the throttling valve core controls the flow velocity of water flow; the time-limited throttling device comprises a first rack and a second rack, and the first rack and the second rack are connected in a sealing manner through permanent magnets to close the throttling channel; the control device controls the first rack and the second rack to be separated to open the throttling channel. As an improvement, a first inserting groove and a second inserting groove which are communicated with the side face of the first throttling hole are formed in the valve core, and the first inserting groove and the second inserting groove are located in the same plane and are perpendicular to the length direction of the first throttling hole; the first rack is connected in the first inserting groove in a sliding manner, and the second rack is connected in the second inserting groove in a sliding manner; the lower end of the first rack is provided with a first permanent magnet, the upper end of the second rack is provided with a second permanent magnet, and the magnetic poles of the first permanent magnet and the second permanent magnet are opposite.
As an improvement, a first inserting groove and a second inserting groove which are communicated with the side face of the first throttling hole are formed in the valve core, and the first inserting groove and the second inserting groove are located in the same plane and are perpendicular to the length direction of the first throttling hole; the first rack is connected in the first inserting groove in a sliding manner, and the second rack is connected in the second inserting groove in a sliding manner; the lower end of the first rack is provided with a first permanent magnet, the upper end of the second rack is provided with a second permanent magnet, and the magnetic poles of the first permanent magnet and the second permanent magnet are opposite.
As an improvement, the control device comprises a screw rod, a steering gear, a first spring, a first gear, a second gear and a first rack, a third inserting groove communicated with the axis of the first gear is arranged in the valve core, and the third inserting groove is positioned above the main flow channel and is vertical to the length direction of the main flow channel; the screw rod is connected in the third inserting groove in a sliding mode, and a steering gear fixedly connected with the top end of the screw rod is arranged at the top end of the screw rod; the lower end part of the screw rod is in threaded connection with the first gear, and the screw rod can enable the first gear to rotate positively and negatively through up-and-down sliding; the lower end of the third inserting groove is provided with a first spring which forces the screw rod to move upwards; a second gear meshed with the first rack is arranged on the right side of the second inserting groove, and the second gear can drive the first rack to slide up and down through rotation; and a first gear vertically meshed with the second gear is arranged on the right side of the second gear.
As an improvement, a sealing element is arranged in the valve body and is positioned between the valve body and the valve core, and the sealing element is used for sealing a gap between the valve core and the valve body.
As an improvement, a throttle valve is arranged in the second throttle hole, and comprises a throttle valve core, a drainage channel, a second spring and a throttle valve seat; a throttle valve hole which is penetrated along the length direction of the second throttle hole is arranged in the throttle valve core; the throttle valve core is connected to the left side of the throttle valve seat in a sliding manner, and a second spring for forcing the throttle valve core to move leftwards is arranged on the left side of the throttle valve seat; and when the throttling valve core slides to the bottom rightwards, liquid can flow into the valve cavity from the left opening of the drainage channel.
As an improvement, a clamping groove is formed in the left side of the first insertion groove and used for limiting the first rack to slide downwards, and clamping grooves are formed in the left side and the right side of the second insertion groove and used for limiting the second rack to slide upwards.
As an improvement, the screw rod is connected with the valve core spline in a hinged mode, and the screw rod can slide up and down in the third inserting groove under the pressure of external force.
The time-limited throttling device consisting of the first rack and the second rack has the function of time-limited sealing throttling channels, the permanent magnets at the lower end of the first rack and the upper end of the second rack are controlled to be opened and closed through the relative distance between the permanent magnets, and when the first rack slides to the bottom, the permanent magnets at the upper end of the second rack can drive the second rack to move upwards under the action of magnetic force, so that a certain time delay effect can be caused in the interval; the screw rod is pressed downwards to open the throttling channel, and meanwhile, the throttling channel is automatically closed after being opened for a certain time through the cooperation of the first spring and the screw rod; the sealing element is tightly attached to the valve core and the valve body, so that the sealing performance is greatly improved; the throttle valve arranged in the second throttle hole can output larger water quantity when the throttle passage is in an open state, and output smaller water quantity after the throttle passage is closed, so that the waste of unnecessary water is reduced; meanwhile, the screw rod is matched with the valve core through a spline, and the bottom of the screw rod is in threaded connection with the first gear connecting part, so that the control screw rod can simultaneously control the valve core to open the communication between the throttling channel or the main flow channel and the water inlet and the water outlet, and open and close the throttling channel inward extending device.
Compared with the prior art, the invention has the advantages that:
1. the closing and opening of the first rack and the second rack are controlled by the attraction of the magnetic force between the permanent magnets, and the permanent magnets have certain time delay performance and can be used for a user for a longer time.
2. The push type ball valve has two modes, one mode is used for a continuous water flow opening state, and the other mode is used for a disposable water using state of a small amount of water flow and can be switched according to the requirements of customers.
3. The sealing element is tightly attached between the valve core and the valve body, so that the sealing property is greatly improved.
4. The sealing device has certain time delay, so that the use time of a user is prolonged when the pressing type hand washing is used.
5. The throttle valve can effectively restrain the subsequent water flow after the channel is closed by the sealing mechanism, and waste caused by subsequent unnecessary water flow is avoided.
6. The clamping grooves at the first inserting groove and the second inserting groove can limit the movement positions of the first rack and the second rack, so that the first rack and the second rack cannot exceed the movement range of the first rack and the second rack along with the action of magnetic force.
7. The screw rod can slide up and down through the spline to control the opening of the throttle channel switch, and meanwhile, the screw rod can be rotated to control the communication of the main flow channel or the interception channel with the water inlet and the water outlet.
Drawings
FIG. 1 is a schematic view of the push-type ball valve of the present invention in an open state;
FIG. 2 is a schematic view of the closed state of the push-type ball valve shown in FIG. 1;
FIG. 3 is a schematic view of the structure of FIG. 2 when water is used to press the screw;
FIG. 4 is an enlarged partial schematic view of the structure shown in FIG. 2;
FIG. 5 is an enlarged partial schematic view of the structure shown in FIG. 3;
fig. 6 is a cross-sectional view of the valve cartridge of the structure shown in fig. 2.
The names of the parts corresponding to the respective reference numerals are: the throttle valve comprises a valve body 1, a valve core 2, a main flow channel 21, a first throttle hole 22, a second throttle hole 23, a screw 31, a steering gear 32, a first spring 33, a third insertion groove 34, a throttle valve 4, a throttle valve core 41, a throttle valve core hole 42, a drainage channel 43, a second spring 44, a throttle valve seat 45, a first gear 51, a second gear 52, a first rack 53, a first permanent magnet 231, a second rack 54, a second permanent magnet 541, a sealing member 6, a water inlet 81 and a water outlet 82.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.
The invention comprises a valve body 1, wherein a valve cavity is arranged in the valve body 1, the valve cavity is provided with a water inlet 81 and a water outlet 82, a valve core 2 is arranged in the valve body 1, a control device is arranged on the valve core 2, a main flow passage 21 and a throttling passage which are mutually communicated are arranged in the valve core 2, the throttling passage comprises a first throttling hole 22 and a second throttling hole 23, the control device controls the main flow passage 21 or the throttling passage to be communicated with the water inlet 81 and the water outlet 82, a time-limited throttling device and a throttling valve 4 are arranged in the throttling passage, a throttling valve core 41 is arranged in the throttling valve 4, and the throttling valve core 41 controls the flow velocity of water flow through moving; the time-limited throttling device comprises a first rack 53 and a second rack 54, and the first rack 53 and the second rack 54 are connected and close the throttling channel in a sealing way through permanent magnets; the control device controls the first rack 53 and the second rack 54 to separate and open the throttle passage.
Specifically, a first insertion groove 55 and a second insertion groove 56 which are communicated with the side surface of the first throttle hole 22 are arranged in the valve core 2, and the first insertion groove 55 and the second insertion groove 56 are positioned in the same plane and are perpendicular to the length direction of the first throttle hole 22; the first rack 53 is slidably connected in the first insertion groove 55, and the second rack 54 is slidably connected in the second insertion groove 56; the lower end of the first rack 53 is provided with a first permanent magnet 531, the upper end of the second rack 54 is provided with a second permanent magnet 541, and the magnetic poles of the first permanent magnet 531 and the second permanent magnet 541 are opposite.
Specifically, the control device comprises a screw 31, a steering gear 32, a first spring 33, a first gear 51, a second gear 52 and a first rack 53, a third insertion groove 34 communicated with the axis of the first gear 51 is arranged in the valve core 2, and the third insertion groove 34 is positioned above the main flow channel 21 and is vertical to the length direction of the main flow channel 21; the screw rod 31 is slidably connected in the third inserting groove 34, and a steering gear 32 fixedly connected is arranged at the top end of the screw rod 31; the lower end part of the screw rod 31 is in threaded connection with the first gear 51, and the screw rod 31 can enable the first gear 34 to rotate positively and negatively by sliding up and down; the lower end of the third inserting groove 34 is provided with a first spring 33 which forces the screw rod 31 to move upwards; a second gear 52 meshed with the first rack 53 is arranged on the right side of the second inserting groove 56, and the second gear 52 can drive the first rack 53 to slide up and down through rotation; the right side of the second gear 52 is provided with a first gear 51 vertically meshed with the second gear 52.
Specifically, a sealing element 6 is arranged in the valve body 1, the sealing element 6 is located between the valve body 1 and the valve core 2, and the sealing element 6 is used for sealing a gap between the valve core 2 and the valve body 1.
Specifically, a throttle valve 4 is arranged in the second throttle hole 23, and the throttle valve 4 comprises a throttle valve core 41, a drainage channel 43, a second spring 44 and a throttle valve seat 45; a throttle valve hole 42 penetrating in the longitudinal direction of the second throttle hole 23 is formed in the throttle valve body 41; the throttle valve core 41 is connected to the left side of the throttle valve seat 45 in a sliding manner, and the left side of the throttle valve seat 46 is provided with a second spring 44 for forcing the throttle valve core 41 to move leftwards; and two sides of the throttle valve seat 41 are provided with drainage channels 43 communicated with the valve cavity 8, left openings of the drainage channels 43 are arranged on two sides of the left end of the throttle valve core 41, and when the throttle valve core 41 slides rightwards to the bottom, liquid can flow into the valve cavity from the left openings of the drainage channels 43.
Specifically, a clamping groove is formed in the left side of the first insertion groove 55 and used for limiting the first rack 53 to slide downwards, and clamping grooves are formed in the left side and the right side of the second insertion groove 56 and used for limiting the second rack 54 to slide upwards.
Specifically, the screw 31 is splined to the valve element 2, and the screw 31 can be pressed by external force to slide up and down in the third insertion groove 34.
When the driving device, namely the screw rod, is rotated to the position shown in figure 1, the valve core main flow hole 21 is connected with the valve cavity, the pressing ball valve is in an opening state at the moment, and water flows out of the water outlet 82 from the valve cavity through the main flow hole 21 so as to achieve the purpose of water supply; when another mode, namely a pressing type water supply mode, needs to be switched, only the steering gear 32 needs to be rotated, so that the steering gear 32 drives the screw rod 31 to rotate by 90 degrees, at this time, the internal structure of the pressing type ball valve is as shown in fig. 2, at this time, the first throttle hole 22 is communicated with the second throttle hole 23 and the water inlet 81 is communicated with the water outlet 82, and the time delay throttling device, namely the first rack 53 and the second rack 54, blocks the first throttle hole 22.
When water is needed, a user only needs to press the screw 31 to the bottom, at this time, the screw 31 is pressed down, because the first gear 51 is in threaded fit with the screw 31, the first gear 51 rotates counterclockwise, the first gear 51 and the second gear 52 are vertically engaged with each other, the second gear 52 rotates clockwise to drive the first rack to slide up to the bottom, the lower end of the first rack 53 and the upper end of the second rack 54 are respectively provided with a first permanent magnet 531 and a second permanent magnet 541, the magnetic poles of the first permanent magnet 531 and the second permanent magnet 541 are opposite, when the first rack 53 slides to the uppermost end of the first inserting groove 55, as shown in fig. 3, along with the increasing distance between the first permanent magnet 531 and the second permanent magnet 541, when the mutual attraction force is smaller than the gravity of the second rack 54, the second rack 54 slides to the bottom of the second inserting groove 541 under the action of gravity; at this time, the water flows through the first orifice 22 to the second orifice 23; one part of the water path is communicated to the outlet through the throttle valve core hole 42, and at this time, the pressure of the water flow on the left side of the throttle valve core 41 is greater than that of the water flow on the right side of the throttle valve core 41, so that the throttle valve core 41 can press the third spring 44 to slide rightwards under the action of the water flow until the left opening of the drainage channel 43 is connected with the second throttle hole, and at this time, the water flow can also be communicated to the outlet through the drainage channels on the two sides of;
when the user cancels the stress on the screw 31, the screw 31 slowly rises under the action of the first spring 33, the screw 31 is in threaded fit with the first gear 51, at this time, the first gear 51 rotates clockwise, because the first gear 51 and the second gear 52 are vertically meshed with each other, the second gear 52 rotates counterclockwise, the first rack 53 slowly slides downwards to the bottom, as the first rack 53 slides to the bottom, the relative distance between the first permanent magnet 531 and the second permanent magnet 541 is continuously reduced, when the attractive force between the first permanent magnet 541 and the second permanent magnet 542 is greater than the gravity of the second rack 54, the second rack 54 is connected to the first rack 53 under the action of the attractive force of the second permanent magnet 541 to complete the sealing of the first throttle hole 22, at this time, no water flows to the second throttle hole 23 from the first throttle hole 22, the water flow pressure on the left side of the second throttle hole 23 is gradually reduced, therefore, the throttle valve core 41 slides to the left under the action of the second spring 44, and at this time, the left opening of the drainage channel 43 is blocked by the throttle valve core 41, and the water flow can only flow out from the throttle valve core hole 42, so that the water flow out from the water outlet 82 is gradually reduced, and the water outlet amount used by a user at one time only needs to be a little from the beginning, thereby avoiding the waste of the subsequent water flow.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a double mode throttle ball valve, includes valve body (1), be equipped with the valve pocket in valve body (1), the valve pocket is equipped with water inlet (81) and delivery port (82), be equipped with case (2) in valve body (1), be equipped with controlling means on case (2), its characterized in that: a main flow channel (21) and a throttling channel which are communicated with each other are arranged in the valve core (2), the throttling channel comprises a first throttling hole (22) and a second throttling hole (23), the control device controls the main flow channel (21) or the throttling channel to be communicated with the water inlet (81) and the water outlet (82), a time-limited throttling device and a throttling valve (4) are arranged in the throttling channel, a throttling valve core (41) is arranged in the throttling valve (4), and the throttling valve core (41) controls the flow rate of water flow through a moving position; the time-limited throttling device comprises a first rack (53) and a second rack (54), wherein the first rack (53) and the second rack (54) are connected and close the throttling channel in a sealing way through permanent magnets; the control device controls the first rack (53) and the second rack (54) to separate and open the throttling channel.
2. A dual-mode throttling ball valve as claimed in claim 1, wherein: a first inserting groove (55) and a second inserting groove (56) which are communicated with the side face of the first throttling hole (22) are formed in the valve core (2), and the first inserting groove (55) and the second inserting groove (56) are located in the same plane and are perpendicular to the length direction of the first throttling hole (22); the first rack (53) is connected in a first inserting groove (55) in a sliding manner, and the second rack (54) is connected in a second inserting groove (56) in a sliding manner; the lower end of the first rack (53) is provided with a first permanent magnet (531), the upper end of the second rack (54) is provided with a second permanent magnet (541), and the magnetic poles of the first permanent magnet (531) and the second permanent magnet (541) are opposite.
3. A dual-mode throttling ball valve as claimed in claim 2, wherein: the control device comprises a screw rod (31), a steering gear (32), a first spring (33), a first gear (51), a second gear (52) and a first rack (53), a third inserting groove (34) communicated with the axis of the first gear (51) is formed in the valve core (2), and the third inserting groove (34) is located above the main flow channel (21) and is vertical to the length direction of the main flow channel (21); the screw rod (31) is connected in the third inserting groove (34) in a sliding mode, and a steering gear (32) fixedly connected is arranged at the top end of the screw rod (31); the lower end part of the screw rod (31) is in threaded connection with the first gear (51), and the screw rod (31) can enable the first gear (34) to rotate positively and negatively by sliding up and down; the lower end of the third inserting groove (34) is provided with a first spring (33) for forcing the screw rod (31) to move upwards; a second gear (52) meshed with the first rack (53) is arranged on the right side of the second inserting groove (56), and the second gear (52) can drive the first rack (53) to slide up and down through rotation; and a first gear (51) vertically meshed with the second gear (52) is arranged on the right side of the second gear (52).
4. A dual-mode throttling ball valve as claimed in claim 1, wherein: the sealing device is characterized in that a sealing piece (6) is arranged in the valve body (1), the sealing piece (6) is located between the valve body (1) and the valve core (2), and the sealing piece (6) is used for sealing a gap between the valve core (2) and the valve body (1).
5. A dual-mode throttling ball valve as claimed in claim 1, wherein: a throttle valve (4) is arranged in the second throttle hole (23), and the throttle valve (4) comprises a throttle valve core (41), a drainage channel (43), a second spring (44) and a throttle valve seat (45); a throttle valve hole (42) penetrating along the length direction of the second throttle hole (23) is arranged in the throttle valve core (41); the throttle valve core (41) is connected to the left side of the throttle valve seat (45) in a sliding manner, and a second spring (44) for forcing the throttle valve core (41) to move leftwards is arranged on the left side of the throttle valve seat (46); and drainage channels (43) communicated with the valve cavity (8) are arranged on two sides of the throttle valve seat (41), openings on the left side of the drainage channels (43) are arranged on two sides of the left end of the throttle valve core (41), and when the throttle valve core (41) slides to the bottom rightwards, liquid can flow into the valve cavity from the openings on the left side of the drainage channels (43).
6. A dual-mode throttling ball valve as claimed in claim 2, wherein: the left side of the first insertion groove (55) is provided with a clamping groove for limiting the first rack (53) to slide downwards, and the left side and the right side of the second insertion groove (56) are provided with clamping grooves for limiting the second rack (54) to slide upwards.
7. A dual-mode throttling ball valve as claimed in claim 3, wherein: the screw rod (31) is in spline connection with the valve core (2), and the screw rod (31) can be pressed by external force to slide up and down in the third inserting groove (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910126170.7A CN109764144B (en) | 2019-02-20 | 2019-02-20 | Dual-mode throttling ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910126170.7A CN109764144B (en) | 2019-02-20 | 2019-02-20 | Dual-mode throttling ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109764144A CN109764144A (en) | 2019-05-17 |
| CN109764144B true CN109764144B (en) | 2020-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910126170.7A Active CN109764144B (en) | 2019-02-20 | 2019-02-20 | Dual-mode throttling ball valve |
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| CN (1) | CN109764144B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112128426B (en) * | 2019-06-24 | 2023-12-29 | 浙江三花智能控制股份有限公司 | Ball valve |
| CN110778736A (en) * | 2019-09-24 | 2020-02-11 | 宁波海曙广运机电工程有限公司 | Safety throttling ball valve |
| CN111809929B (en) * | 2020-07-31 | 2021-04-06 | 衡阳泰豪通信车辆有限公司 | Protective shelter system |
| CN112984145B (en) * | 2021-02-04 | 2022-02-01 | 浙江尔格科技股份有限公司 | Portable flow control discharge valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4130128A (en) * | 1974-07-17 | 1978-12-19 | Fuji Photo Film Co., Ltd. | Ball valve with orifice |
| CN102425680A (en) * | 2011-11-28 | 2012-04-25 | 浙江盾安机械有限公司 | Ball valve |
| CN103256410A (en) * | 2012-02-21 | 2013-08-21 | 浙江三花股份有限公司 | Refrigeration system and ball valve thereof |
| CN206972960U (en) * | 2017-03-17 | 2018-02-06 | 永康市良工阀门有限公司 | A kind of double spool flow throttling ball valves |
| CN207213238U (en) * | 2017-08-30 | 2018-04-10 | 自贡自高阀门有限公司 | A kind of Flow-rate adjustment V-type ball valve valve element |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8220488B2 (en) * | 2010-07-30 | 2012-07-17 | Mccully Tim | Flow control valve with internal isolation means |
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2019
- 2019-02-20 CN CN201910126170.7A patent/CN109764144B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4130128A (en) * | 1974-07-17 | 1978-12-19 | Fuji Photo Film Co., Ltd. | Ball valve with orifice |
| CN102425680A (en) * | 2011-11-28 | 2012-04-25 | 浙江盾安机械有限公司 | Ball valve |
| CN103256410A (en) * | 2012-02-21 | 2013-08-21 | 浙江三花股份有限公司 | Refrigeration system and ball valve thereof |
| CN206972960U (en) * | 2017-03-17 | 2018-02-06 | 永康市良工阀门有限公司 | A kind of double spool flow throttling ball valves |
| CN207213238U (en) * | 2017-08-30 | 2018-04-10 | 自贡自高阀门有限公司 | A kind of Flow-rate adjustment V-type ball valve valve element |
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| CN109764144A (en) | 2019-05-17 |
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Effective date of registration: 20200514 Address after: Yongjia Dong'ou County of Wenzhou City, Zhejiang province 325000 streets and village Applicant after: TEJI VALVE GROUP Co.,Ltd. Address before: 315000 Yinzhou District and Fengxiao Square and Courtyard Building, Ningbo City, Zhejiang Province Applicant before: Zheng Xing |
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Denomination of invention: A dual mode throttle ball valve Effective date of registration: 20230802 Granted publication date: 20200612 Pledgee: Agricultural Bank of China Limited Yongjia County sub branch Pledgor: TEJI VALVE GROUP Co.,Ltd. Registration number: Y2023330001603 |
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