CN211039728U - Adjustable telescopic angle valve - Google Patents
Adjustable telescopic angle valve Download PDFInfo
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- CN211039728U CN211039728U CN201922117007.2U CN201922117007U CN211039728U CN 211039728 U CN211039728 U CN 211039728U CN 201922117007 U CN201922117007 U CN 201922117007U CN 211039728 U CN211039728 U CN 211039728U
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Abstract
The utility model provides an adjustable telescopic angle valve belongs to valve technical field. It has solved the current poor problem of angle valve suitability. The valve comprises a valve body, a valve core assembly is arranged in the valve body, a connecting pipe is arranged outside a water inlet connector of the valve body in a sliding mode, external threads are arranged at the outer end of the connecting pipe, a plurality of positioning holes are circumferentially distributed at the inner end of the connecting pipe, steel balls are arranged in the positioning holes, a plurality of annular grooves are formed in the side portion of the water inlet connector, the annular grooves are distributed along the axial direction of the water inlet connector, the steel balls can be partially embedded into the annular grooves when the connecting pipe slides to the position where the positioning holes are opposite to one of the annular grooves, a locking sleeve is arranged outside the inner end of the connecting pipe, the locking sleeve can slide towards the direction far away from the valve body relative to the connecting pipe, the sliding of the locking sleeve towards the direction close to the. It has the advantages of convenient operation, wide applicability, simple structure and the like.
Description
Technical Field
The utility model belongs to the technical field of the valve, a angle valve is related to, especially, relate to an adjustable telescopic angle valve.
Background
The angle valve is an angle type stop valve, also called a triangle valve and an angle valve, is similar to a ball valve, and is widely applied to daily life. For example, when a home house, a hotel or an office building is decorated, an angle valve is generally installed at a water pipe joint buried in a wall, and then a metal braided hose is connected with bathroom equipment such as a washbasin faucet, a toilet, a water heater or a sink faucet. When the angle valve is installed, the water inlet end is generally connected by threads. The length of the water inlet end of the existing angle valve after leaving the factory is fixed, and after the water inlet end is connected with the water pipe threads arranged in the wall body, the position of the angle valve is fixed and cannot be adjusted, so that the applicability is low, and the installation at different distances cannot be met. In addition, there are some angle valve assemblies on the market that can be quickly connected, which, although they can achieve quick installation of the angle valve, still do not have the function of enabling the user to adjust the angle valve according to the distance, and therefore the applicability is still insufficient.
Disclosure of Invention
The utility model aims at the above-mentioned problem that prior art exists, provide adjustable telescopic angle valve, solved the poor problem of current angle valve suitability.
The purpose of the utility model can be realized by the following technical proposal:
an adjustable telescopic angle valve comprises a valve body with a water outlet at the lower end and a water inlet joint at the lateral part, wherein a valve core assembly for controlling the water outlet to be communicated with or separated from an inner hole of the water inlet joint is arranged in the valve body, the adjustable telescopic angle valve is characterized in that a connecting pipe is arranged outside the water inlet joint in a sliding manner, external threads are arranged at the outer end of the connecting pipe, a plurality of positioning holes penetrating through the side wall of the connecting pipe are circumferentially distributed at the inner end of the connecting pipe, steel balls are arranged in each positioning hole, a plurality of annular grooves are arranged at the lateral part of the water inlet joint, each annular groove is axially distributed along the water inlet joint, when the connecting pipe slides to the position where the positioning hole is opposite to one of the annular grooves, the steel balls can be partially embedded into the annular groove, a locking sleeve is arranged outside the inner end of the connecting pipe, and a spring acting on the locking sleeve along the direction close to the valve body is arranged outside the connecting pipe.
In a normal state, each positioning hole and one of the annular grooves are internally provided with each steel ball part which is embedded into the annular groove, meanwhile, the annular boss on the locking sleeve is positioned at the positioning hole to limit the steel ball in the positioning hole, and the connecting pipe and the water inlet connector are fixed through the steel ball, so that the connecting pipe cannot slide. Generally, the angle valve is connected with a pipeline arranged in a wall body, and then the angle valve is connected with a pipeline for water outlet, and when the angle valve is connected with the pipeline arranged in the wall body and then the valve body is away from the pipeline for water outlet by a certain distance, a user can adjust the angle valve by sliding the connecting pipe. The specific adjustment mode is as follows: the locking sleeve is pushed to the direction far away from the valve body to enable the annular boss and the positioning hole to be staggered, the steel ball is not limited by the annular boss any more, the connecting pipe can be pushed to slide towards the outer end of the water inlet connector at the moment, and the steel ball is extruded by the outer wall of the water inlet connector and partially falls into the locking sleeve. When the connecting pipe slides to a required position, the positioning hole on the connecting pipe corresponds to the annular groove at the current position, and the steel ball is partially embedded into the current annular groove. The locking sleeve is loosened, the annular boss on the locking sleeve is positioned at the positioning hole again under the elastic force action of the spring, so that the steel ball is limited in the positioning hole again and cannot be separated, and the connecting pipe can be kept in the current state to enable the valve body to be smoothly connected with a pipeline for water outlet.
The angle valve realizes the adjustment of the distance between the valve body and the wall body through the arrangement of the connecting pipe, the steel ball and the locking sleeve, ensures that the valve body can be smoothly connected under various conditions, well improves the applicability, and simultaneously has better operation convenience.
In the adjustable telescopic angle valve, the clamp spring is arranged on the outer side of the inner end of the connecting pipe, part of the clamp spring extends out of the side wall of the connecting pipe, the inner side of the inner end of the locking sleeve is provided with the annular flange, the inner end surface of the annular flange abuts against the outer end surface of the clamp spring, an annular yielding groove is formed between the annular boss and the annular flange, and when the connecting pipe slides relative to the water inlet connector, the steel ball can be pushed to be separated from the annular groove and be partially embedded into the annular yielding groove.
The inner end face of the annular flange abuts against the outer end face of the clamp spring, so that the locking sleeve is limited to slide towards the direction close to the valve body. Meanwhile, the annular yielding groove is formed between the annular boss and the annular flange, so that when the locking sleeve slides in the direction far away from the valve body, the steel balls can fall into the annular yielding groove under the extrusion of the water inlet connector, and the connecting pipe can slide relative to the water inlet connector to adjust the position of the water outlet of the valve body.
In the adjustable telescopic angle valve, the inner diameter of the outer end orifice of the positioning hole is larger than that of the inner end orifice of the positioning hole, the inner end of the annular boss is obliquely arranged towards the direction close to the outer end, and the outer end of the annular flange is obliquely arranged towards the direction close to the inner end.
The inner end of the annular boss is obliquely arranged towards the direction close to the outer end, and the outer end of the annular flange is obliquely arranged towards the direction close to the inner end, so that the notch of the annular yielding groove is outward expanded, and the steel ball is ensured to more smoothly fall into the annular yielding groove under the extrusion action of the outer side wall of the water inlet joint so as to facilitate the connection pipe to slide relative to the water inlet joint. In addition, the inner diameter of the outer end orifice of the positioning hole is set to be larger than the inner end orifice of the positioning hole, so that the positioning hole is a tapered hole, and when the connecting pipe slides to the position where the positioning hole is opposite to the annular groove, the steel ball can smoothly fall into the annular groove through the taper of the positioning hole, so that the connecting pipe can keep the state after sliding.
In the adjustable telescopic angle valve, the connecting pipe is externally provided with an annular retaining shoulder, the outer end of the spring abuts against the inner end face of the annular retaining shoulder, the inner end of the spring abuts against the outer end face of the annular boss, and the inner end face of the annular flange always abuts against the outer end face of the snap spring under the elastic action of the spring.
In the adjustable telescopic angle valve, the inner side of the connecting pipe is provided with a sealing ring, the sealing ring is positioned between the external thread and the steel ball, and when the steel ball falls into any annular groove, the sealing ring is propped against the outer side wall of the water inlet joint.
The angle valve is connected with a water pipe through the external thread of the connecting pipe, but water still flows out of the water inlet connector, so that a sealing ring is arranged on the inner side of the connecting pipe to prevent water from leaking between the connecting pipe and the water inlet connector.
In the above adjustable telescopic angle valve, the lateral part of the outer end of the water inlet connector is provided with the limiting head, the inner side of the connecting pipe is provided with the straight groove along the length direction of the water inlet connector, the limiting head has elasticity and is positioned in the straight groove, and when the connecting pipe slides relative to the water inlet connector, the limiting head can abut against the groove wall on one side of the straight groove to prevent the connecting pipe from falling off from the water inlet connector.
The lateral part at the water supply connector outer end sets up and has elastic spacing head, takes over the elasticity through spacing head self when the cover is located outside the water supply connector and produces deformation and crowd into the straight flute of taking over inboard, and the cooperation of spacing head and straight flute can prevent to take over the excessive and direct follow water supply connector of slip and deviate from.
In the above adjustable telescopic angle valve, the annular blocking shoulder is arranged close to the external thread, the pipe connecting sleeve is provided with the decorative cover, the center hole of the decorative cover is provided with a plurality of clamping pieces which are bent towards the direction of the outer end of the pipe connecting, the decorative cover is abutted against the outer end face of the annular blocking shoulder, and each clamping piece is tightly attached to the outer wall of the pipe connecting.
The card sets up for can form comparatively inseparable cooperation relation between dress trim cover and the takeover, the dress trim cover is difficult to not hard up when the takeover slides like this, and the operation when making the takeover slide can be more convenient.
In the adjustable telescopic angle valve, the water inlet connector is further sleeved with a decorative pipe, the outer end of the decorative pipe is connected to the inner end of the connecting pipe in a threaded mode, and the distance from the outer end face of the connecting pipe to the inner end face of the decorative pipe is slightly smaller than or equal to the length of the water inlet connector. The connection of the decorative pipe enables the integrity of the water inlet joint to be better and the appearance to be more attractive.
Compared with the prior art, the adjustable telescopic angle valve realizes the adjustment of the distance between the valve body and the wall body through the arrangement of the connecting pipe, the steel ball and the locking sleeve, ensures that the valve body can be smoothly connected under various conditions, well improves the applicability, and has better operation convenience. And the structure is simpler.
Drawings
FIG. 1 is a cross-sectional view of the present adjustable telescoping angle valve.
FIG. 2 is a schematic view of the present adjustable telescoping angle valve.
In the figure, 1, a valve body; 1a, a water outlet; 1b, a water inlet joint; 1b1, annular groove; 1c, water through holes; 2. a valve core assembly; 2a, a screw rod; 2b, a sealing gasket; 3. taking over a pipe; 3a, external threads; 3b, positioning holes; 3c, an annular retaining shoulder; 4. steel balls; 5. a locking sleeve; 5a, an annular boss; 5b, an annular flange; 5c, annular abdicating grooves; 6. a spring; 7. a clamp spring; 8. a seal ring; 9. a decorative cover; 9a, a card; 10. a decorative tube; 11. a water outlet joint; 12. pressing the cap; 13. a handwheel.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1 and 2, the adjustable telescopic angle valve includes a valve body 1 having a water outlet 1a at a lower end and a water inlet joint 1b at a side portion, and a valve core assembly 2 for controlling the communication or separation of the water outlet 1a and an inner hole of the water inlet joint 1b is arranged in the valve body 1. Water supply connector 1b and valve body 1 formula structure as an organic whole, delivery port 1a external screw thread 3a is connected with water outlet joint 11, be equipped with water hole 1c between the hole of delivery port 1a and water supply connector 1b in the valve body 1, case subassembly 2 includes lead screw 2a and connects in the sealed pad 2b of lead screw 2a lower extreme, 1 upper end threaded connection of valve body has pressure cap 12, lead screw 2a and the 12 threaded connection of pressure cap, lead screw 2a upper end is stretched out outside the valve body 1 and is connected with hand wheel 13, sealed pad 2b supports to form sealedly by the last port department in crossing water hole 1 c.
As shown in fig. 1 and 2, the water inlet joint 1b is provided with a connecting pipe 3 in a sliding manner, the outer end of the connecting pipe 3 is provided with an external thread 3a, and when in use, the external thread 3a at the outer end of the connecting pipe 3 is in threaded connection with a pipeline arranged in a wall body. A plurality of positioning holes 3b are circumferentially distributed at the inner end of the connecting pipe 3, each positioning hole 3b penetrates through the side wall of the connecting pipe 3, steel balls 4 are arranged in each positioning hole 3b, and the inner diameter of the outer end orifice of each positioning hole 3b is larger than that of the inner end orifice of each positioning hole 3 b. The side of the water inlet joint 1b is provided with a plurality of annular grooves 1b1, each annular groove 1b1 is distributed along the axial direction of the water inlet joint 1b, and the steel balls 4 can be partially embedded into the annular groove 1b1 when the connecting pipe 3 slides to the positioning hole 3b to be opposite to one annular groove 1b 1. The inner side of the connecting pipe 3 is provided with a sealing ring 8, the sealing ring 8 is positioned between the external thread 3a and the steel ball 4, and when the steel ball 4 falls into any annular groove 1b1, the sealing ring 8 is propped against the outer side wall of the water inlet joint 1 b. The angle valve is connected with a water pipe through the external thread 3a of the connecting pipe 3, but water still flows out of the water inlet joint 1b, so a sealing ring 8 is arranged on the inner side of the connecting pipe 3 to prevent water from leaking between the connecting pipe 3 and the water inlet joint 1 b.
As shown in fig. 1 and 2, a locking sleeve 5 is arranged outside the inner end of the adapter tube 3, the locking sleeve 5 can slide relative to the adapter tube 3 in the direction away from the valve body 1, and the sliding of the locking sleeve 5 in the direction close to the valve body 1 is limited. Particularly, a clamp spring 7 is arranged on the outer side of the inner end of the connecting pipe 3, part of the clamp spring 7 extends out of the side wall of the connecting pipe 3, an annular flange 5b is arranged on the inner side of the inner end of the locking sleeve 5, and the inner end face of the annular flange 5b abuts against the outer end face of the clamp spring 7 so that the locking sleeve 5 cannot slide towards the direction close to the valve body 1. An annular boss 5a is arranged in the locking sleeve 5, and the annular boss 5a is located at the positioning hole 3b and used for limiting the steel ball 4 to be separated from the positioning hole 3 b. An annular relief groove 5c is formed between the annular flange 5b and the annular boss 5a, and when the adapter 3 slides relative to the water inlet joint 1b, the steel ball 4 can be pushed to be disengaged from the annular groove 1b1 and be partially embedded into the annular relief groove 5 c. The inner end face of the annular boss 5a is obliquely arranged close to the outer end direction, the outer end face of the annular flange 5b is obliquely arranged close to the inner end direction, so that the notch of the annular abdicating groove 5c is outwards expanded, and the steel ball 4 can be smoothly matched with the annular abdicating groove 5 c. A spring 6 is arranged outside the connecting pipe 3, and the spring 6 is positioned in the outer end of the locking sleeve 5. The connecting pipe 3 is externally provided with an annular retaining shoulder 3c, the outer end of the spring 6 is propped against the inner end face of the annular retaining shoulder 3c, the inner end of the spring 6 is propped against the outer end face of the annular boss 5a, and the inner end face of the annular flange 5b is always propped against the outer end face of the clamp spring 7 under the elastic force action of the spring 6.
Under normal conditions, each positioning hole 3b and one of the annular grooves 1b1 are provided, each steel ball 4 is partially embedded into the annular groove 1b1, meanwhile, the annular boss 5a on the locking sleeve 5 is positioned at the positioning hole 3b to limit the steel ball 4 in the positioning hole 3b, and the connecting pipe 3 and the water inlet joint 1b are fixed through the steel ball 4, so that the connecting pipe 3 cannot slide. Generally, the angle valve is connected with a pipeline arranged in a wall body, and then is connected with a pipeline for water outlet, when the angle valve is connected with the pipeline arranged in the wall body, the valve body 1 is away from the pipeline for water outlet by a certain distance, and a user can adjust the angle valve by sliding the connecting pipe 3. The specific adjustment mode is as follows:
firstly, the locking sleeve 5 is pushed towards the direction far away from the valve body 1, the annular boss 5a and the positioning hole 3b are staggered, and the annular abdicating groove 5c is positioned at the positioning hole 3 b. Because the steel ball 4 is no longer limited by the annular boss 5a, the connecting pipe 3 can be pushed to slide towards the outer end of the water inlet joint 1b, and the steel ball 4 is partially dropped into the annular abdicating groove 5c under the extrusion of the outer wall of the water inlet joint 1 b. When the adapter 3 is slid to a desired position, the positioning hole 3b of the adapter 3 corresponds to the annular groove 1b1 at the current position, and the steel ball 4 is partially inserted into the current annular groove 1b 1. The locking sleeve 5 is loosened, the annular boss 5a on the locking sleeve 5 is positioned at the positioning hole 3b again under the action of the elastic force of the spring 6, so that the steel ball 4 is limited in the positioning hole 3b again and cannot be separated, and the connecting pipe 3 can be kept in the current state, so that the valve body 1 can be smoothly connected with a pipeline for water outlet.
The angle valve realizes the adjustment of the distance between the valve body 1 and the wall body through the arrangement of the connecting pipe 3, the steel ball 4 and the locking sleeve 5, ensures that the valve body 1 can be smoothly connected under various conditions, well improves the applicability, and has better operation convenience.
As shown in fig. 1 and 2, the annular shoulder 3c is disposed near the external thread 3a, the connecting pipe 3 is sleeved with a decoration cover 9, a central hole of the decoration cover 9 is provided with a plurality of clamping pieces 9a bent towards the outer end direction of the connecting pipe 3, the decoration cover 9 abuts against the outer end face of the annular shoulder 3c, and each clamping piece 9a is tightly attached to the outer wall of the connecting pipe 3. The card 9a is arranged, so that the decorative cover 9 and the connecting pipe 3 can form a tight fit relation, and the decorative cover 9 is not easy to loosen when the connecting pipe 3 slides, so that the operation is more convenient. The water inlet connecting pipe 3 is also sleeved with a decorative pipe 10, the outer end of the decorative pipe 10 is connected to the inner end of the connecting pipe 3 in a threaded mode, and the distance from the outer end face of the connecting pipe 3 to the inner end face of the decorative pipe 10 is slightly smaller than or equal to the length of the water inlet connector 1 b. The lateral part of the outer end of the water inlet connector 1b is provided with a limiting head, the inner side of the connecting pipe 3 is provided with a straight groove along the length direction of the water inlet connector 1b, the limiting head has elasticity and is positioned in the straight groove, and when the connecting pipe 3 slides relative to the water inlet connector 1b, the limiting head can be abutted against the groove wall on one side of the straight groove so as to prevent the connecting pipe 3 from falling off from the water inlet connector 1 b.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (8)
1. An adjustable telescopic angle valve comprises a valve body (1) with a water outlet (1a) at the lower end and a water inlet joint (1b) at the lateral part, wherein a valve core assembly (2) for controlling the communication or the partition of the water outlet (1a) and an inner hole of the water inlet joint (1b) is arranged in the valve body (1), and is characterized in that a connecting pipe (3) is arranged outside the water inlet joint (1b) in a sliding manner, an external thread (3a) is arranged at the outer end of the connecting pipe (3), a plurality of positioning holes (3b) penetrating through the side wall of the connecting pipe (3) are circumferentially distributed at the inner end of the connecting pipe (3), steel balls (4) are arranged in each positioning hole (3b), a plurality of annular grooves (1b1) are arranged at the lateral part of the water inlet joint (1b), each annular groove (1b1) is axially distributed along the water inlet joint (1b), and the steel balls (4) can be partially embedded into the annular groove (1b1) when the connecting pipe, take over (3) the inner and be equipped with locking cover (5) outward, locking cover (5) can be for taking over (3) to keeping away from the slip of valve body (1) direction and locking cover (5) to being close to the slip of valve body (1) direction and being restricted, be equipped with in locking cover (5) and be located locating hole (3b) department and be used for restricting annular boss (5a) that steel ball (4) deviate from locating hole (3b), take over (3) and be equipped with outward and act on spring (6) on locking cover (5) along being close to valve body (1) direction.
2. The adjustable telescopic angle valve of claim 1, wherein a clamp spring (7) is arranged on the outer side of the inner end of the connecting pipe (3), part of the clamp spring (7) extends out of the side wall of the connecting pipe (3), an annular flange (5b) is arranged on the inner side of the inner end of the locking sleeve (5), the inner end face of the annular flange (5b) is abutted against the outer end face of the clamp spring (7), an annular abdicating groove (5c) is formed between the annular boss (5a) and the annular flange (5b), and when the connecting pipe (3) slides relative to the water inlet connector (1b), the steel ball (4) can be pushed to be disengaged from the annular groove (1b1) and be partially embedded into the annular abdicating groove (5 c).
3. The adjustable telescopic angle valve of claim 2, wherein the inner diameter of the outer end opening of the positioning hole (3b) is larger than the inner diameter of the inner end opening of the positioning hole (3b), the inner end of the annular boss (5a) is obliquely arranged facing the direction close to the outer end, and the outer end of the annular flange (5b) is obliquely arranged facing the direction close to the inner end.
4. The adjustable telescopic angle valve according to claim 2 or 3, characterized in that the connecting pipe (3) is externally provided with an annular retaining shoulder (3c), the outer end of the spring (6) abuts against the inner end face of the annular retaining shoulder (3c), the inner end of the spring (6) abuts against the outer end face of the annular boss (5a), and the inner end face of the annular flange (5b) always abuts against the outer end face of the snap spring (7) under the elastic force of the spring (6).
5. The adjustable telescopic angle valve of claim 4, characterized in that, the inside of the connecting pipe (3) is provided with a sealing ring (8), the sealing ring (8) is positioned between the external thread (3a) and the steel ball (4), when the steel ball (4) falls into any annular groove (1b1), the sealing ring (8) is abutted against the outer side wall of the water inlet joint (1 b).
6. The adjustable telescopic angle valve of claim 5, wherein the lateral part of the outer end of the water inlet joint (1b) is provided with a limiting head, the inner side of the connecting pipe (3) is provided with a straight groove along the length direction of the water inlet joint (1b), the limiting head has elasticity, the limiting head is positioned in the straight groove, and when the connecting pipe (3) slides relative to the water inlet joint (1b), the limiting head can abut against the groove wall on one side of the straight groove to prevent the connecting pipe (3) from falling off from the water inlet joint (1 b).
7. The adjustable telescopic angle valve of claim 4, characterized in that, the annular retaining shoulder (3c) is arranged near the external thread (3a), the connecting pipe (3) is sleeved with a decoration cover (9), the center hole of the decoration cover (9) is provided with a plurality of clamping pieces (9a) bending towards the outer end direction of the connecting pipe (3), the decoration cover (9) is abutted against the outer end face of the annular retaining shoulder (3c) and each clamping piece (9a) is tightly attached to the outer wall of the connecting pipe (3).
8. The adjustable telescopic angle valve of claim 7, wherein the water inlet joint (1b) is further sleeved with a decorative pipe (10), the outer end of the decorative pipe (10) is screwed into the inner end of the connecting pipe (3), and the distance from the outer end surface of the connecting pipe (3) to the inner end surface of the decorative pipe (10) is slightly less than or equal to the length of the water inlet joint (1 b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922117007.2U CN211039728U (en) | 2019-11-29 | 2019-11-29 | Adjustable telescopic angle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922117007.2U CN211039728U (en) | 2019-11-29 | 2019-11-29 | Adjustable telescopic angle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211039728U true CN211039728U (en) | 2020-07-17 |
Family
ID=71531955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922117007.2U Active CN211039728U (en) | 2019-11-29 | 2019-11-29 | Adjustable telescopic angle valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN211039728U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11773995B1 (en) | 2023-02-23 | 2023-10-03 | Prince Mohammad Bin Fahd University | Relief valve device |
-
2019
- 2019-11-29 CN CN201922117007.2U patent/CN211039728U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11773995B1 (en) | 2023-02-23 | 2023-10-03 | Prince Mohammad Bin Fahd University | Relief valve device |
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