CN214425134U - High-precision airflow flow regulating valve - Google Patents

Abstract

The utility model relates to a governing valve technical field, and a high accuracy airflow flow control valve is disclosed, including left casing, well casing, right side casing, case and disk seat, the disk seat is fixed to be set up in the inside of well casing, the case is located the inside of disk seat, be equipped with spacing slide mechanism between the upper and lower both sides of case and disk seat, the fixed internal thread sleeve that is equipped with of left side wall of case, the internal thread telescopic internal thread is provided with the lead screw, the left end of lead screw is rotated through the inside wall of first antifriction bearing with left casing and is connected, the inside wall of left side casing just is located the top of lead screw and is provided with the sleeve pipe through the rotation of second antifriction bearing, the sheathed tube inside is passed and is provided with the pivot, rotate through slide bearing between the axle wall of pivot and the inside wall of left casing and be connected. The utility model discloses can realize fast and the cooperation of propelling movement case and disk seat at a slow speed and carry out fast mediation fine setting to the clearance of case and disk seat to the control airflow flow's that can the high accuracy output.

Description

High-precision airflow flow regulating valve

Technical Field

The utility model relates to a governing valve technical field especially relates to a high accuracy airflow flow control valve.

Background

The regulating valve is also called a control valve, and in the field of industrial automation process control, the final control element for changing the process parameters of medium flow, pressure, temperature, liquid level and the like by power operation through receiving the control signal output by a regulating control unit.

The existing airflow flow regulating valve has the problem of poor flow control capability of gas in the using process, so that the high-precision regulation and output of the gas flow cannot be ensured. Therefore, the utility model provides a high accuracy air flow control valve.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the flow control ability of air flow control valve has gas relatively poor among the prior art at the in-process that uses to can't guarantee the problem of adjusting the output to the gas flow high accuracy, and the high accuracy flow control valve who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a high accuracy air flow control valve, includes left casing, well casing, right casing, case and disk seat, the disk seat is fixed to be set up in the inside of well casing, the case is located the inside of disk seat, be equipped with spacing slide mechanism between the upper and lower both sides of case and disk seat, the left side wall of case is fixed and is equipped with the internal thread sleeve, the internal thread of internal thread sleeve is provided with the lead screw, the left end of lead screw is rotated through the inside wall of first antifriction bearing with left casing and is connected, the inside wall of left side casing just is located the top of lead screw and is rotated through second antifriction bearing and is provided with the sleeve pipe, the inside of sleeve pipe is passed and is provided with the pivot, rotate through slide bearing between the axle wall of pivot and the inside wall of left casing and be connected, be equipped with elastic mechanism between the axle wall of pivot and the sheathed tube inner wall, the axle wall of pivot is fixed and is equipped with first gear wheel, second gear wheel, The screw rod is fixedly provided with a rocking handle at one end outside the left shell, and the first pinion and the second pinion are meshed.

Preferably, the limiting sliding mechanism comprises a limiting sliding rod and a connecting plate, the limiting sliding rod is fixedly arranged on the side wall of the valve seat, the connecting plate is fixedly arranged on the side wall of the valve core, and the side wall of the connecting plate is in sliding connection with the rod wall of the limiting sliding rod through a limiting sliding hole.

Preferably, the elastic mechanism comprises a sliding block and a spring, the sliding block is vertically symmetrically and fixedly arranged on the shaft wall of the rotating shaft, the inner wall of the sleeve is provided with a sliding groove matched with the sliding block, the spring is fixedly arranged on the side wall of the sliding block, and the other end of the spring is fixedly connected with the side wall of the sliding groove.

Preferably, a support rod is vertically and fixedly arranged on the left side inside the middle shell, and the rod wall of the screw rod is rotatably connected with the rod wall of the support rod through a third rolling bearing.

Preferably, a sealing ring is fixedly embedded in the side wall of the valve core.

Preferably, the valve core is arranged in a circular truncated cone shape, and the inner wall of the valve seat is matched with the valve core.

Compared with the prior art, the utility model provides a high accuracy airflow control valve possesses following beneficial effect:

1. this high accuracy airflow flow governing valve through the internal thread sleeve that is equipped with, lead screw, 8 sleeve pipes, pivot, first gear wheel, first pinion, second gear wheel, second pinion, rocking handle, spacing slide bar and connecting plate, can realize fast and push valve core and disk seat cooperation at a slow speed and carry out fast and fine setting to the clearance of case and disk seat to the output of control airflow flow that can be accurate.

2. This high accuracy air flow governing valve through slider and the spring that is equipped with, can realize that the pivot is scalable and make the cooperation of corresponding first gear wheel and second pinion and the cooperation of second pinion and first gear wheel to guarantee fast and slow rotating lead screw.

The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses can realize fast and push away case and disk seat cooperation at a slow speed and carry out fast and fine setting to the clearance of case and disk seat to the control airflow flow's that can the high accuracy output.

Drawings

Fig. 1 is a schematic structural view of a high-precision airflow flow control valve provided by the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

fig. 3 is a schematic structural view of the valve core in fig. 1.

In the figure: the device comprises a left shell 1, a middle shell 2, a right shell 3, a valve seat 4, a valve core 5, an internal thread sleeve 6, a lead screw 7, a sleeve 8, a rotating shaft 9, a first big gear 10, a first small gear 11, a second big gear 12, a second small gear 13, a rocking handle 14, a limiting sliding rod 15, a connecting plate 16, a sliding block 17, a spring 18, a sealing ring 19 and a supporting rod 20.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a high-precision airflow flow regulating valve comprises a left shell 1, a middle shell 2, a right shell 3, a valve core 5 and a valve seat 4, wherein the valve seat 4 is fixedly arranged inside the middle shell 2, the valve core 5 is positioned inside the valve seat 4, a limiting sliding mechanism is arranged between the valve core 5 and the upper side and the lower side of the valve seat 4, an internal thread sleeve 6 is fixedly arranged on the left side wall of the valve core 5, a screw rod 7 is arranged on the internal thread of the internal thread sleeve 6, the left end of the screw rod 7 is rotatably connected with the inner side wall of the left shell 1 through a first rolling bearing, a sleeve 8 is rotatably arranged on the inner side wall of the left shell 1 and above the screw rod 7 through a second rolling bearing, a rotating shaft 9 penetrates through the inside of the sleeve 8, the shaft wall of the rotating shaft 9 is rotatably connected with the inner side wall of the left shell 1 through a sliding bearing, and an elastic mechanism is arranged between the shaft wall of the rotating shaft 9 and the inner wall of the sleeve 8, a first gearwheel 10 and a first pinion 11 are fixedly arranged on the shaft wall of the rotating shaft 9, a second gearwheel 12 and a second pinion 13 are fixedly arranged on the rod wall of the screw rod 7, a rocking handle 14 is fixedly arranged at one end of the screw rod 7, which is positioned outside the left shell 1, and the first pinion 11 and the second gearwheel 12 are meshed.

The limiting sliding mechanism comprises a limiting sliding rod 15 and a connecting plate 16, the limiting sliding rod 15 is fixedly arranged on the side wall of the valve seat 4, the connecting plate 16 is fixedly arranged on the side wall of the valve core 5, and the side wall of the connecting plate 16 is in sliding connection with the rod wall of the limiting sliding rod 15 through a limiting sliding hole.

The elastic mechanism comprises a sliding block 17 and a spring 18, the sliding block 17 is symmetrically and fixedly arranged on the shaft wall of the rotating shaft 9, the inner wall of the sleeve 8 is provided with a sliding groove matched with the sliding block 17, the spring 18 is fixedly arranged on the side wall of the sliding block 17, and the other end of the spring 18 is fixedly connected with the side wall of the sliding groove.

The inside left side of well casing 2 is vertical to be fixed and is equipped with bracing piece 20, and the pole wall of lead screw 7 is connected with the pole wall rotation of bracing piece 20 through third antifriction bearing, can increase the rotatory stability of lead screw 7.

The side wall of the valve core 5 is fixedly embedded with a sealing ring 19, the valve core 5 is arranged in a round table shape, and the inner wall of the valve seat 4 is matched with the valve core 5.

In the utility model, when in use, when the flow of the air flow needs to be quickly adjusted, the hand of the worker pushes the rotating handle 14 to move the rotating shaft 9 and drive the sliding block 17 to extrude the spring 18, so that the first big gear 10 on the rotating shaft 9 is meshed with the second small gear 13, then the rotating handle 14 is rotated to rotate the rotating shaft 9, the rotating shaft 9 can drive the first big gear 10 to rotate, the first big gear 10 drives the second small gear 13 to rotate, thereby the lead screw 7 can be rapidly rotated and the internal thread sleeve 6 can be pushed to rapidly move, the inner valve core 5 can be rapidly moved to the inside of the valve seat 4, thereby the flow of the air flow can be rapidly reduced, when the flow of the high-precision control air flow is needed, the hand of the worker withdraws to push the rotating handle 14, the rotating force is directly applied to the rotating handle 14, at the moment, the first small gear 11 on the rotating shaft 9 is meshed with the second big gear 12 due to the action of the extruded spring 18, thereby can realize that the lead screw 7 that rotates slowly and push away case 5 and disk seat 4 cooperation at a slow speed, and then can finely tune the clearance of case 5 and disk seat 4, the output of control air flow that can be accurate.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. A high-precision airflow flow regulating valve comprises a left shell (1), a middle shell (2), a right shell (3), a valve core (5) and a valve seat (4), and is characterized in that the valve seat (4) is fixedly arranged inside the middle shell (2), the valve core (5) is positioned inside the valve seat (4), a limiting sliding mechanism is arranged between the valve core (5) and the upper side and the lower side of the valve seat (4), an internal thread sleeve (6) is fixedly arranged on the left side wall of the valve core (5), a lead screw (7) is arranged on an internal thread of the internal thread sleeve (6), the left end of the lead screw (7) is rotatably connected with the inner side wall of the left shell (1) through a first rolling bearing, a sleeve (8) is rotatably arranged on the upper side of the lead screw (7) through a second rolling bearing, a rotating shaft (9) penetrates through the inner side wall of the sleeve (8), rotate through slide bearing between the axle wall of pivot (9) and the inside wall of left casing (1) and be connected, be equipped with elastic mechanism between the axle wall of pivot (9) and the inner wall of sleeve pipe (8), the axle wall of pivot (9) is fixed and is equipped with first gear wheel (10), first pinion (11), the pole wall of lead screw (7) is fixed and is equipped with second gear wheel (12) and second pinion (13), lead screw (7) are located the fixed rocking handle (14) that is equipped with of the outside one end of left casing (1), first pinion (11) and second gear wheel (12) meshing setting.

2. A high-precision airflow flow regulating valve according to claim 1, characterized in that the limit slide mechanism comprises a limit slide rod (15) and a connecting plate (16), the limit slide rod (15) is fixedly arranged on the side wall of the valve seat (4), the connecting plate (16) is fixedly arranged on the side wall of the valve core (5), and the side wall of the connecting plate (16) is slidably connected with the rod wall of the limit slide rod (15) through a limit slide hole.

3. A high-precision airflow flow regulating valve according to claim 1, characterized in that the elastic mechanism comprises a sliding block (17) and a spring (18), the sliding block (17) is vertically symmetrically and fixedly arranged on the shaft wall of the rotating shaft (9), the inner wall of the sleeve (8) is provided with a sliding groove matched with the sliding block (17), the spring (18) is fixedly arranged on the side wall of the sliding block (17), and the other end of the spring (18) is fixedly connected with the side wall of the sliding groove.

4. A high precision airflow flow regulating valve according to claim 1, characterized in that a supporting rod (20) is vertically and fixedly arranged at the left side inside the middle casing (2), and the rod wall of the screw rod (7) is rotatably connected with the rod wall of the supporting rod (20) through a third rolling bearing.

5. A high precision air flow and flow regulating valve according to claim 1, characterized in that the side wall of the valve core (5) is fixedly embedded with a sealing ring (19).

6. A high precision air flow regulating valve according to claim 1, characterized in that the valve core (5) is arranged in a circular truncated cone shape, and the inner wall of the valve seat (4) is arranged in match with the valve core (5).

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