CN216479250U

CN216479250U - Dynamic balance regulating valve

Info

Publication number: CN216479250U
Application number: CN202123195835.1U
Authority: CN
Inventors: 马春涛
Original assignee: Beijing Jull Valve Co ltd
Current assignee: Beijing Jull Valve Co ltd
Priority date: 2021-12-17
Filing date: 2021-12-17
Publication date: 2022-05-10
Anticipated expiration: 2031-12-17

Abstract

The application relates to a dynamic balance regulating valve, which belongs to the technical field of flow control equipment and comprises a valve body and a valve rod; one end of the valve rod extends into the valve body, and the other end of the valve rod is positioned outside the valve body; the valve rod is provided with a valve port adjusting assembly at one end positioned in the valve body, the valve port adjusting assembly comprises a movable valve core and a fixed valve core, the fixed valve core is clamped in the valve body, and the movable valve core is rotatably connected to the fixed valve core and fixed with the valve rod; and one end of the valve rod, which is positioned outside the valve body, is provided with an angle indicator for observing the rotation angle of the valve rod. This application is located the outside one end of valve body at the valve rod and is provided with angle indicator, and the staff can observe the turned angle of valve rod through angle indicator to can judge the size of valve port, the staff of being convenient for confirms case and movable valve core valve port size.

Description

Dynamic balance regulating valve

Technical Field

The application relates to the technical field of flow control equipment, in particular to a dynamic balance regulating valve.

Background

The dynamic balance valve mainly refers to a dynamic differential pressure balance valve, which automatically changes resistance and flow according to the change of system working conditions and can effectively control the flow to keep a constant value in a certain differential pressure range; when the pressure difference before and after the valve is increased, the flow can be kept not to be increased through the automatic closing action of the valve, and when the pressure difference is reduced, the valve is automatically opened, the flow is still kept constant, so that the pressure difference can be kept basically unchanged when the working condition is changed.

In the related art, a dynamic balance valve generally includes a valve body and a valve stem, and the valve stem is provided with a valve port adjusting assembly at one end inside the valve body. The valve port adjusting component comprises a fixed valve core and a movable valve core, the fixed valve core is clamped in the valve body, and the movable valve core is rotatably connected to the fixed valve core and fixed with the valve rod. The valve rod is rotated to rotate the valve core, and then the size of the valve port is adjusted.

Aiming at the related technologies, the inventor thinks that in the valve port size adjusting process, the staff can only judge the size through the liquid amount flowing out of the dynamic balance valve, and the defect that the staff judges the size of the valve port is inconvenient exists.

SUMMERY OF THE UTILITY MODEL

In order to make things convenient for the staff to judge case and movable valve core valve port size, this application provides a dynamic balance governing valve.

The application provides a dynamic balance governing valve adopts following technical scheme:

a dynamic balance regulating valve comprises a valve body and a valve rod; one end of the valve rod extends into the valve body, and the other end of the valve rod is positioned outside the valve body; the valve rod is provided with a valve port adjusting assembly at one end positioned in the valve body, the valve port adjusting assembly comprises a movable valve core and a fixed valve core, the fixed valve core is clamped in the valve body, and the movable valve core is rotatably connected to the fixed valve core and fixed with the valve rod; and one end of the valve rod, which is positioned outside the valve body, is provided with an angle indicator for observing the rotation angle of the valve rod.

Through adopting above-mentioned technical scheme, be located the outside one end of valve body at the valve rod and be provided with angle indicator, the staff can observe the turned angle of valve rod through angle indicator to can judge the size of valve port, the staff of being convenient for confirms case and movable valve core valve port size.

Optionally, the angle indicator is including deciding the needle file and moving the calibrated scale, it fixes on the valve body to decide the needle file, it deviates from the valve body terminal surface and is provided with the first pointer mark that is used for the instruction to decide the needle file, it fixes in valve rod outside department to move the calibrated scale, it deviates from the valve body terminal surface laminating with deciding the needle file to move a calibrated scale terminal surface, it deviates from and decides the needle file terminal surface and is provided with many first scale marks along circumference to move the calibrated scale.

By adopting the technical scheme, the fixed pointer seat is fixed on the valve body, the movable dial is fixed on the valve rod, the movable dial and the movable valve core on the valve rod rotate along with the valve rod in the process of adjusting the valve port by rotating the valve rod, and a worker can determine the rotation angle of the valve rod according to the position of the first pointer mark finger on the first scale mark, so that the worker can conveniently determine the size of the valve port.

Optionally, a limit screw is inserted outside the movable dial, and the limit screw penetrates through the movable dial and is fixed in the valve rod.

By adopting the technical scheme, the limiting screw is arranged between the movable dial and the valve rod, so that the movable dial and the valve rod can be fixed; the limiting screw is detached from the valve rod, so that the movable dial plate can be separated from the valve rod; the movable dial is convenient to disassemble and assemble.

Optionally, the angle indicator includes a fixed dial and a movable pointer seat, the fixed dial is fixed on the valve body, a plurality of second scale marks are circumferentially arranged on the fixed dial, which is away from the end face of the valve body, the movable pointer seat is fixed on the valve rod, which is located at the outer side of the valve body, and a second pointer mark for indicating is arranged on the movable pointer seat.

By adopting the technical scheme, the dial is fixed on the valve body, the movable pointer seat is fixed on the valve rod, the movable pointer seat and the movable valve core on the valve rod rotate along with the valve rod in the process of adjusting the valve port by rotating the valve rod, and a worker can determine the rotation angle of the valve rod by the position of the second pointer mark finger on the second scale mark, so that the worker can conveniently determine the size of the valve port.

Optionally, a polygonal limiting platform is fixed to the valve rod at the position of the movable pointer seat, a polygonal limiting hole matched with the limiting platform is formed in the end face of the movable pointer seat, and the movable pointer seat is sleeved on the valve rod at the position of the limiting platform.

Through adopting above-mentioned technical scheme, the spacing platform of fixed polygon on the valve rod to moving the pointer seat and offering and spacing platform matched with spacing hole, in angle indicator use, the valve rod can not take place to rotate with moving the pointer seat, has promoted angle indicator's result of use.

Optionally, the valve rod is provided with screw thread portion outside the pointer base, and threaded connection has rotatory retaining member on screw thread portion for the valve rod.

Through adopting above-mentioned technical scheme, the valve rod has rotatory retaining member at spacing platform outside threaded connection, can prevent that the stop pointer seat from droing from the valve rod, has promoted angle indicator's result of use.

Optionally, an installation groove is formed in the end face, close to the valve body, of the fixed dial, a guide strip is fixed to the inner side wall of the installation groove of the fixed dial, a fixed cover matched with the installation groove is fixed to the valve rod inside the fixed dial, a guide groove matched with the guide strip is formed in the outer peripheral face of the fixed cover, and the guide groove penetrates through two end faces of the fixed cover.

Through adopting above-mentioned technical scheme, be provided with the guide way on fixed covering, at the fixed gib block of mounting groove inside wall, can guarantee the accuracy of valve rod along valve rod axial displacement to promote the position accuracy of valve rod and fixed scale, and then promoted the position accuracy of moving pointer seat and fixed scale.

Optionally, the inner side wall of the installation groove of the positioning dial is provided with a pressure relief hole.

Through adopting above-mentioned technical scheme, seted up the pressure-relief vent at the mounting groove inside wall, can make the atmospheric pressure of fixed lid both sides the same to be convenient for pull out of valve rod.

Optionally, the end face of the movable pointer base is provided with first plane teeth, and the end face of the fixed cover is provided with second plane teeth matched with the first plane teeth.

Through adopting above-mentioned technical scheme, set up first plane tooth on the pointer seat that moves, fixed covering set up with first plane tooth complex second plane tooth, move pointer seat installation back, move pointer seat and go up first plane tooth and second plane tooth meshing, can prevent that stop pointer seat and fixed lid rotate relatively, promoted the fixed effect of moving pointer seat and fixed lid.

Optionally, a weight reduction groove is formed in the outer side of the first plane tooth on the end face of the movable pointer seat.

Through adopting above-mentioned technical scheme, set up on the pointer seat and subtract heavy groove, can alleviate the quality of pointer seat to the cost of pointer seat has been reduced.

In summary, the present application includes at least one of the following beneficial technical effects:

1. an angle indicator is arranged at one end of the valve rod, which is positioned outside the valve body, and a worker can observe the rotation angle of the valve rod through the angle indicator, so that the size of the valve port can be judged, and the worker can conveniently determine the sizes of the valve port of the valve core and the valve port of the movable valve core;

2. the fixed pointer seat is fixed on the valve body, the movable dial is fixed on the valve rod, the movable dial and the movable valve core on the valve rod rotate along with the valve rod in the process of adjusting the valve port by rotating the valve rod, and a worker can determine the rotation angle of the valve rod through the position of the first pointer marking finger on the first scale mark, so that the worker can conveniently determine the size of the valve port;

3. a fixed dial is fixed on the valve body, a movable pointer seat is fixed on the valve rod, the movable pointer seat and the movable valve core on the valve rod rotate along with the valve rod in the process of adjusting the valve port by rotating the valve rod, and a worker can determine the rotation angle of the valve rod through the position of a second pointer mark finger on a second scale mark, so that the worker can conveniently determine the size of the valve port.

Drawings

Fig. 1 is a schematic view of an internal structure of a dynamic balance adjustment valve according to embodiment 1 of the present application.

Fig. 2 is a schematic structural view of a dynamic balance control valve with a valve body hidden according to embodiment 1 of the present application.

Fig. 3 is a schematic view of the internal structure of a dynamic balance adjustment valve in embodiment 2 of the present application.

Fig. 4 is a schematic structural view of a dynamic balance regulating valve of embodiment 2 of the present application with a valve body hidden.

Fig. 5 is an exploded view of the valve stem, the angle indicator and the fixing cap according to example 2 of the present application.

Description of reference numerals: 1. a valve body; 2. a valve stem; 21. a limiting table; 22. a threaded portion; 3. a valve port adjusting component; 31. a movable valve core; 32. a fixed valve core; 4. an angle indicator; 41. a finger needle seat is determined; 411. a first pointer marker; 42. a movable dial plate; 421. a first scale mark; 43. a limit screw; 431. a hexagonal sinking groove; 44. a dial is fixed; 441. a second scale mark; 442. mounting grooves; 443. a guide strip; 444. a pressure relief vent; 45. a movable pointer seat; 451. a second pointer marker; 452. a limiting hole; 453. a first planar tooth; 454. a weight reduction groove; 5. rotating the locking piece; 6. a fixed cover; 61. a guide groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a dynamic balance adjusting valve.

Example 1

Referring to fig. 1, the dynamic balance regulating valve includes valve body 1 that the slope set up and valve rod 2 of vertical setting, and valve rod 2 is located valve body 1 intermediate position, and in valve rod 2 one end stretched into valve body 1, the other end was located the valve body 1 outside.

Referring to fig. 1 and 2, a valve port adjusting assembly 3 is disposed at one end of the valve stem 2 located inside the valve stem 2, and the valve port adjusting assembly 3 includes a movable valve core 31 and a fixed valve core 32. The movable valve core 31 is fixed at the end of the valve rod 2 in the valve body 1 through a nut. The fixed valve core 32 is located outside the movable valve core 31, the fixed valve core 32 is rotatably connected with the movable valve core 31, and the fixed valve core 32 is clamped inside the valve body 1. The rotary valve rod 2 can drive the movable valve core 31 to rotate, thereby adjusting the size of the valve port between the movable valve core 31 and the fixed valve core 32.

Referring to fig. 1 and 2, an angle indicator 4 is provided at one end of the valve stem 2 outside the valve body 1, and the angle indicator 4 includes a fixed needle seat 41 and a movable dial 42. The fixed finger seat 41 is fixed at the middle position of the upper side port of the valve body 1, and the upper end surface of the fixed finger seat 41 is provided with a first pointer mark 411 pointing to the center of the fixed finger seat 41.

Referring to fig. 1 and 2, the movable dial 42 is sleeved on the end of the valve rod 2 outside the valve body 1, and the movable dial 42 is rotatably connected in the fixed finger seat 41. First scale lines 421 are uniformly arranged on the upper end surface of the movable dial 42 along the circumferential direction, a limit screw 43 is arranged in the middle of the outer circumferential surface of the movable dial 42 in a penetrating manner, and a hexagonal sinking groove 431 is arranged in the middle of the outer end surface of the limit screw 43. After the movable dial 42 is sleeved on the valve rod 2, a worker installs a hexagon in the hexagon sinking groove 431 on the limiting screw 43, rotates the hexagon, enables the limiting screw 43 to penetrate through the movable dial 42 and be connected in the valve rod 2 in a threaded manner, and is convenient for fixing the movable dial 42 on the valve rod 2.

The implementation principle of the dynamic balance regulating valve in embodiment 1 of the application is as follows: the valve rod 2 is rotated, the movable valve core 31 and the movable dial 42 on the valve rod 2 can rotate along with the valve rod 2, the size of the valve port can be adjusted through the rotation of the movable valve core 31, meanwhile, because the fixed pointer seat 41 is fixed on the valve body 1, the rotation angle of the valve rod 2 is the rotation angle of the movable dial 42 in the fixed pointer seat 41, and a worker can judge the rotation angle of the valve rod 2 through the position of the first pointer mark 411 on the first scale line 421, so that the determination of the rotation angle of the valve rod 2 is facilitated, and the worker can further determine the size of the valve port.

Example 2

Referring to fig. 3 to 5, embodiment 2 is different from embodiment 1 in that the end of the valve stem 2 located outside the valve body 1 and the arrangement of the angle indicator 4 are different. Valve rod 2 is located 1 outside one end integrated into one piece of valve body has spacing platform 21 of hexagon, valve rod 2 has screw thread portion 22 at spacing platform 21 outer integrated into one piece, valve rod 2 is fixed with fixed lid 6 in spacing platform 21 inboard, fixed lid 6 sets up to disc and fixed 6 axes of lid and the coincidence of valve rod 2 axis, two symmetric distribution's guide way 61 is seted up to fixed 6 outer peripheral faces of lid, guide way 61 runs through fixed 6 both ends faces of lid, fixed lid 6 deviates from and is provided with the second plane tooth on the 1 terminal surface of valve body.

The angle indicator 4 includes a fixed dial 44 and a movable pointer seat 45, the fixed dial 44 is fixed on the valve body 1 and located outside the fixed cover 6, and the movable pointer seat 45 is fixed on the valve rod 2. The upper surface of the fixed dial 44 is provided with second scale marks 441 at equal intervals along the circumferential direction; the bottom surface of the fixed dial 44 is provided with a circular mounting groove 442, two symmetrically arranged guide strips 443 are integrally formed on the inner side wall of the mounting groove 442 of the fixed dial 44, the guide strips 443 are matched with the guide groove 61, and the fixed cover 6 is slidably connected in the mounting groove 442. The cooperation of gib block 443 and guide way 61 can make the slip direction of fixed lid 6 in mounting groove 442 more accurate, reduces the skew probability of fixed lid 6 to reduce the skew probability of valve rod 2, and then promoted the position accuracy of moving pointer seat 45. The inner side wall of the fixed dial 44 in the mounting groove 442 is provided with a pressure reducing hole 444 penetrating through the fixed dial 44, and in the sliding process of the fixed cover 6, air at the bottoms of the fixed cover 6 and the mounting groove 442 can be discharged through the pressure reducing hole 444, so that the fixed cover 6 can slide conveniently.

The movable pointer seat 45 is positioned above the fixed dial 44, and the movable pointer seat 45 and the fixed dial 44 are coaxially arranged. The outer peripheral surface of the movable pointer seat 45 is provided with a second pointer mark 451, and the outer peripheral surface of the movable pointer seat 45 is provided with anti-skid grains. The middle position of the movable pointer seat 45 close to the end face of the fixed cover 6 is provided with a limiting hole 452 matched with the limiting platform 21 on the valve rod 2, the movable pointer seat 45 is sleeved on the position, located at the limiting platform 21, of the valve rod 2, the movable pointer seat 45 can be prevented from rotating relative to the valve rod 2, and the fixing effect of the movable pointer seat 45 and the valve rod 2 is improved. Move pointer seat 45 and be close to fixed 6 terminal surfaces of covering and be provided with annular first plane tooth 453 outside spacing hole 452, move pointer seat 45 and install behind valve rod 2, move the meshing of the second plane tooth on first plane tooth 453 on pointer seat 45 and the fixed 6 of covering, can prevent that stop pointer seat 45 and fixed 6 of covering rotate relatively, promoted and moved pointer seat 45 and fixed 6 fixed effects of covering. The movable pointer base 45 is provided with a plurality of weight reduction grooves 454 at equal intervals in the circumferential direction near the end surface of the fixed cover 6, so that the mass of the movable pointer base 45 can be reduced, and the manufacturing cost of the movable pointer base 45 can be reduced.

The 22 threaded connection of screw thread portion of valve rod 2 has cylindrical rotatory retaining member 5, installs back on valve rod 2 at rotatory retaining member 5, and rotatory retaining member 5 can move pointer seat 45 butt and move between pointer seat 45 and fixed lid 6 to avoid moving pointer seat 45 along 2 axial displacement of valve rod, promoted the fixed effect of moving pointer seat 45 and valve rod 2, be provided with anti-skidding line in the 5 outsides of rotatory retaining member, make things convenient for the installation or the dismantlement of rotatory retaining member 5.

The implementation principle of the dynamic balance adjusting valve in embodiment 2 of the application is as follows: the valve rod 2 is rotated, the movable valve core 31 and the movable pointer seat 45 on the valve rod 2 rotate along with the valve rod 2, the size of the valve port can be adjusted through the rotation of the movable valve core 31, meanwhile, because the fixed dial 44 is fixed on the valve body 1, the rotation angle of the valve rod 2 is the rotation angle of the movable pointer seat 45, and a worker can judge the rotation angle of the valve rod 2 through the position of the second scale mark 441 indicated by the second pointer mark 451, so that the rotation angle of the valve rod 2 can be conveniently determined, and further, the worker can conveniently determine the size of the valve port.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A dynamic balance regulating valve is characterized in that: comprises a valve body (1) and a valve rod (2); one end of the valve rod (2) extends into the valve body (1), and the other end of the valve rod is positioned outside the valve body (1); a valve port adjusting assembly (3) is arranged at one end of the valve rod (2) positioned in the valve body (1), the valve port adjusting assembly (3) comprises a movable valve core (31) and a fixed valve core (32), the fixed valve core (32) is clamped in the valve body (1), and the movable valve core (31) is rotatably connected to the fixed valve core (32) and is fixed with the valve rod (2); and one end of the valve rod (2) positioned outside the valve body (1) is provided with an angle indicator (4) for observing the rotation angle of the valve rod (2).

2. A dynamic balance adjustment valve in accordance with claim 1, wherein: angle indicator (4) are including deciding needle file (41) and moving calibrated scale (42), decide needle file (41) to fix on valve body (1), decide needle file (41) to deviate from valve body (1) terminal surface and be provided with first pointer mark (411) that are used for the instruction, it fixes and is located valve body (1) outside department at valve rod (2) to move calibrated scale (42), move a calibrated scale (42) terminal surface and decide needle file (41) and deviate from valve body (1) terminal surface laminating, it deviates from fixed needle file (41) terminal surface along circumference to move calibrated scale (42) and is provided with many first scale marks (421).

3. A dynamic balance adjustment valve in accordance with claim 2, wherein: move the calibrated scale (42) outside and peg graft and have stop screw (43), stop screw (43) pass and move calibrated scale (42) and fix in valve rod (2).

4. A dynamic balance adjustment valve in accordance with claim 1, wherein: the angle indicator (4) comprises a fixed dial (44) and a movable pointer seat (45), the fixed dial (44) is fixed on the valve body (1), a plurality of second scale marks (441) are arranged on the end face, deviating from the valve body (1), of the fixed dial (44) along the circumferential direction, the movable pointer seat (45) is fixed on the valve rod (2) and located on the outer side of the valve body (1), and a second pointer mark (451) used for indicating is arranged on the movable pointer seat (45).

5. A dynamic balance adjustment valve according to claim 4, characterized in that: valve rod (2) are fixed with spacing platform of polygon (21) in pointer seat (45) department of moving, move pointer seat (45) terminal surface and offer with spacing platform (21) complex polygon spacing hole (452), move pointer seat (45) cover and establish valve rod (2) in spacing platform (21) department.

6. A dynamic balance adjustment valve according to claim 5, wherein: valve rod (2) are provided with screw thread portion (22) outside moving pointer seat (45), valve rod (2) threaded connection has rotatory retaining member (5) on screw thread portion (22).

7. A dynamic balance adjustment valve according to claim 4, characterized in that: the end face, close to the valve body, of the fixed dial (44) is provided with a mounting groove (442), the inner side wall of the mounting groove (442) of the fixed dial (44) is fixedly provided with a guide strip (443), the valve rod (2) is fixedly provided with a fixed cover (6) matched with the mounting groove (442) inside the fixed dial (44), the outer peripheral surface of the fixed cover (6) is provided with a guide groove (61) matched with the guide strip (443), and the guide groove (61) penetrates through two end faces of the fixed cover (6).

8. A dynamic balance adjustment valve in accordance with claim 7, wherein: the inner side wall of the mounting groove (442) of the positioning dial (44) is provided with a pressure reducing hole (444).

9. A dynamic balance adjustment valve in accordance with claim 7, wherein: the end face of the movable pointer seat (45) is provided with first plane teeth (453), and the end face of the fixed cover (6) is provided with second plane teeth matched with the first plane teeth (453).

10. A dynamic balance adjustment valve in accordance with claim 9, wherein: the end face of the movable pointer seat (45) is provided with a lightening groove (454) at the outer side of the first plane tooth (453).