Search

CN-224229403-U - Three-piece type internal and external thread connection floating ball valve

CN224229403UCN 224229403 UCN224229403 UCN 224229403UCN-224229403-U

Abstract

The utility model belongs to the technical field of valves, in particular to a three-piece type internal and external threaded connection floating ball valve, which aims at solving the problem that the existing valve only has a simple pressure detection function and cannot effectively release pressure in time when the pressure is too high. The technical scheme is that the ball valve comprises a valve body, a valve clack, a valve ball, a valve rod, a handle, a pressure measuring mechanism and a pressure releasing mechanism, wherein a stress plate in a supporting cover is pushed by liquid pressure, a pressing plate acts on a pressure sensor through a push rod to detect the pressure, in the pressure releasing mechanism, liquid flows into a flow cover through a flow hole and then flows into a mounting pipe through a telescopic pipeline, when the pressure is overlarge, a magnetic component controls a sealing component to be opened, the liquid is discharged through a drainage hole and a drainage pipeline connected with a joint, and pressure release is realized. According to the utility model, through the pressure measuring and pressure releasing mechanism, excessive pressure can be detected and released when the ball valve is closed, so that the valve ball is protected, the service life of the ball valve is prolonged, and the safety is improved.

Inventors

  • WU DAHAI
  • CHEN BILONG
  • CHEN CHANGSHENG

Assignees

  • 浙江明盛阀门有限公司

Dates

Publication Date
20260512
Application Date
20250614

Claims (9)

  1. 1. The utility model provides a three formula internal and external threaded connection floating ball valve, includes valve body (1), and symmetrical fixed mounting has two annular valve clacks (2) in valve body (1), presss from both sides between two valve clacks (2) and is equipped with valve ball (3), valve ball (3) top fixed connection valve rod (4), valve rod (4) top extends to valve body (1) top and threaded connection handle (5), its characterized in that still includes: the pressure measuring mechanism penetrates through the inner wall of one side of the top of the valve body (1) and is fixedly connected with the valve body, and comprises a supporting cover (6), a force bearing plate (7) which is slidably connected in the supporting cover (6) and a pressure sensor (10) which is fixed on the inner wall of the top of the supporting cover (6), wherein the force bearing plate (7) is connected with a pressing plate (9) through a push rod (8), and the pressing plate (9) is matched with the pressure sensor (10); The pressure release mechanism comprises a flow cover (12) fixedly sleeved on the push rod (8), a plurality of flow holes (11) communicated with the flow cover (12) are formed in the stress plate (7), the flow cover (12) is connected with a mounting pipe (15) through a telescopic pipeline, and a sealing component controlled by a magnetic component is arranged in the mounting pipe (15); when the pressure in the valve body (1) is overlarge, the liquid pushes the force-bearing plate (7) to enable the pressure sensor (10) to detect the pressure, meanwhile, the liquid flows into the flow cover (12) through the flow hole (11), and the magnetic component controls the closing component to open so that the liquid is discharged through the telescopic pipeline and the mounting pipe (15).
  2. 2. The three-piece internally and externally threaded floating ball valve according to claim 1 wherein the telescoping tube comprises: the support tube (13) is fixedly connected with the inner wall of the top of the flow cover (12); The connecting pipe (14) is connected in the supporting pipe (13) in a sliding way and extends to the outer side of the supporting cover (6), and the connecting pipe (14) is fixedly connected with the mounting pipe (15).
  3. 3. The three piece internally and externally threaded floating ball valve according to claim 2 wherein said closure assembly comprises: the sealing ring (17) is fixedly arranged in the mounting pipe (15); The sealing cover (20) is arranged in the mounting pipe (15) in a sliding manner, one side of the sealing cover extends into the sealing ring (17), and two drain holes are formed in the inner wall of the sealing cover (20); Wherein, the water drain hole is sealed when the sealing cover (20) is tightly attached to the inner wall of the sealing ring (17).
  4. 4. The three-piece internally and externally threaded floating ball valve according to claim 3 wherein the magnetic attraction member comprises: the two support rods (18) are symmetrically fixed in the mounting pipe (15); The movable frame (19) is sleeved on the supporting rod (18) in a sliding manner and is fixedly connected with the closed cover (20); Four electromagnet rings (21) which are fixed on the inner wall of the mounting pipe (15) and the movable frame (19) in pairs respectively; The compression spring (22) is sleeved on the supporting rod (18) and is connected with the closed ring (17) and the movable frame (19).
  5. 5. The three-piece internally-externally threaded floating ball valve according to claim 4, wherein the electromagnet ring (21) is electrically connected with the pressure sensor (10) through a processor, and when the pressure sensor (10) detects that the pressure exceeds a threshold value, the processor controls the electromagnet ring (21) to be powered off so that the closure cap (20) moves to open the drain hole.
  6. 6. The three-piece internally and externally threaded floating ball valve according to any one of claims 1 to 5, characterized in that the support cap (6) communicates with the inner cavity of the valve body (1), and when the valve ball (3) is closed, the liquid can flow into the support cap (6) to push the force-bearing plate (7).
  7. 7. The three-piece internal and external threaded connection floating ball valve according to claim 6, wherein the push rod (8) is fixedly connected to the top center position of the stress plate (7), and the pressing plate (9) is slidably connected with the inner wall of the supporting cover (6).
  8. 8. The three-piece internally-externally threaded floating ball valve according to claim 7, wherein one end of the mounting tube (15) is fixedly connected with a joint (16) for connecting an external drainage tube.
  9. 9. The three-piece internally-externally threaded floating ball valve according to claim 1, wherein the valve body (1), the valve clack (2) and the valve ball (3) form a three-piece structure, and the valve clack (2) is in threaded connection with the valve body (1).

Description

Three-piece type internal and external thread connection floating ball valve Technical Field The utility model relates to the technical field of valves, in particular to a three-piece type internal and external threaded connection floating ball valve. Background Ball valves are widely used as an important control element in fluid delivery and control systems in various industrial and domestic applications. The three-piece type internal and external threaded connection floating ball valve has the advantages of compact structure, convenient installation, good sealing performance and the like, and plays an important role in various ball valve types. During actual use, ball valves are often subjected to various complex operating environments, particularly in some high pressure fluid delivery scenarios. When the ball valve is in the closed state, if the fluid pressure in the conduit suddenly rises, for example due to abnormal operation of the upstream pump, clogging of the conduit or other unexpected circumstances, the interior of the valve body is subjected to a great pressure. Such excessive pressure can cause serious damage to components inside the ball valve, particularly the valve ball. The valve ball is used as a key component for realizing the opening and closing and sealing functions of the ball valve, and under the condition of bearing excessive pressure for a long time, the problems of deformation, sealing failure and the like can occur, so that the normal use of the ball valve is affected, the service life of the ball valve is shortened, even safety accidents such as fluid leakage and the like can be caused, and potential safety hazards and economic losses are brought to production and life. At present, although valves with pressure detection and pressure relief functions exist in the market, the valves often have defects in structural design, function realization, reliability and the like. For example, some valves only have a simple pressure detection function, and can not effectively perform pressure relief in time when the pressure is too high, so we propose a three-piece type internal and external threaded connection floating ball valve for solving the above-mentioned problems. Disclosure of utility model The utility model aims to solve the defect that in the prior art, a valve only has a simple pressure detection function and can not effectively perform pressure relief in time when the pressure is overlarge, and provides a three-piece type internal and external threaded connection floating ball valve. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The utility model provides a three formula internal and external threaded connection floating ball valve, includes the valve body, and symmetrical fixed mounting has two annular valve clacks in the valve body, presss from both sides between two valve clacks and is equipped with the valve ball, valve ball top fixed connection valve rod, and the valve rod top extends to valve body top and threaded connection handle, still includes: The pressure measuring mechanism penetrates through the inner wall of one side of the top of the valve body and is fixedly connected with the valve body, and comprises a supporting cover, a force bearing plate which is connected in the supporting cover in a sliding manner and a pressure sensor which is fixed on the inner wall of the top of the supporting cover, wherein the force bearing plate is connected with a pressing plate through a push rod, and the pressing plate is matched with the pressure sensor; The pressure release mechanism comprises a flow cover fixedly sleeved on the push rod, a plurality of flow holes communicated with the flow cover are formed in the stress plate, the flow cover is connected with a mounting pipe through a telescopic pipeline, and a sealing assembly controlled by a magnetic component is arranged in the mounting pipe; when the pressure in the valve body is overlarge, the liquid pushes the stress plate to enable the pressure sensor to detect the pressure, meanwhile, the liquid flows into the flow cover through the flow hole, and the magnetic component controls the closing component to be opened so that the liquid is discharged through the telescopic pipeline and the mounting pipe. In one possible design, the telescoping tube comprises: the support tube is arranged on the inner side of the support tube, fixedly connected with the inner wall of the top of the flow cover; and the connecting pipe is connected in the supporting pipe in a sliding way and extends to the outer side of the supporting cover, and is fixedly connected with the mounting pipe. In one possible design, the closure assembly includes: The sealing ring is fixedly arranged in the mounting pipe; The sealing cover is arranged in the mounting pipe in a sliding manner, one side of the sealing cover extends into the sealing ring, and the inner wall of the sealing cover is provided wi