CN218543258U

CN218543258U - Pneumatic double-seat reversing valve

Info

Publication number: CN218543258U
Application number: CN202222503154.5U
Authority: CN
Inventors: 刘宇金; 杭黎娟; 陶新华
Original assignee: Wuxi Skf Machinery Manufacturing Co ltd
Current assignee: Wuxi Skf Machinery Manufacturing Co ltd
Priority date: 2022-09-21
Filing date: 2022-09-21
Publication date: 2023-02-28
Anticipated expiration: 2032-09-21

Abstract

The utility model discloses a pneumatic two-seat reversing valve, including pneumatic actuator, switching-over valve and coupling nut, coupling nut is installed to the pneumatic actuator bottom, coupling nut installs on the switching-over valve top, it installs the swivel becket to rotate on the switching-over valve annular side, two turning blocks of installation are rotated to swivel becket top symmetry, turning block top fixed mounting has the connecting rod, and connecting rod other end fixed mounting has V type fixture block, V type fixture block joint is in the coupling nut outside. The utility model discloses not only can rotate through the turning block and drive V type fixture block and remove and the coupling nut laminating, and then avoid coupling nut to appear becoming flexible, can drive the inclined plane piece through twisting adjusting bolt and remove moreover, and then it is fixed to extrude T type fixture block removal to carry out the joint to the turning block, can also remove through the inclined plane piece and extrude the cylinder pole and remove, and the cylinder pole removes and drives arc magnetic sheet and remove and adsorb the laminating with the switching-over valve.

Description

Pneumatic double-seat reversing valve

Technical Field

The utility model relates to a two-seat switching-over valve technical field especially relates to a pneumatic two-seat switching-over valve.

Background

The double-seat reversing valve consists of a pneumatic actuating mechanism and a reversing valve, and is generally divided into a straight-through single seat type and a straight-through double seat type, wherein the straight-through single seat type and the straight-through double seat type have the characteristics of large flow capacity, small unbalanced force and stable operation, so that the double-seat reversing valve is particularly suitable for occasions with large flow, high pressure drop and less leakage.

The general pneumatic actuating mechanism is connected with the reversing valve through the connecting nut, and the connecting nut and the reversing valve are easy to loosen due to the lack of an auxiliary clamping function, so that the stability of connection between the pneumatic actuating mechanism and the reversing valve is reduced, and meanwhile, the pneumatic actuating mechanism is inconvenient to operate and control the reversing valve, so that the pneumatic double-seat reversing valve is very necessary.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a pneumatic double-seat reversing valve.

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

the utility model provides a pneumatic two-seater switching-over valve, includes pneumatic actuator, switching-over valve and coupling nut, coupling nut is installed to the pneumatic actuator bottom, coupling nut installs on the switching-over valve top, it installs the swivel becket to rotate on the switching-over valve annular side, two turning blocks of installation are rotated to swivel becket top symmetry, turning block top fixed mounting has the connecting rod, and connecting rod other end fixed mounting has V type fixture block, V type fixture block joint is in the coupling nut outside, two T type fixture blocks of swivel becket bottom symmetry slidable mounting, and T type fixture block top extend to inside the turning block.

Furthermore, two grooves are symmetrically formed in the top end of the rotating ring, fixing pins are fixedly arranged in the grooves, and rotating blocks are rotatably arranged on the annular side faces of the fixing pins.

Furthermore, the fixing pin is fixedly provided with a torsion spring on the annular side surface, the outer side of the torsion spring is fixedly arranged inside the rotating block, the bottom end of the rotating block is provided with a clamping hole, and the cross section of the clamping hole is the same as that of the top end of the T-shaped clamping block.

Furthermore, a cylindrical groove is formed in the bottom end of the inner portion of the groove, a T-shaped clamping block is slidably mounted in the cylindrical groove, and a support ring is mounted on the annular side face of the T-shaped clamping block.

Furthermore, an inclined plane block is slidably mounted inside the rotating ring, one end of the inclined plane block is fixedly provided with a first spring, the other end of the first spring is fixedly mounted inside the rotating ring, two cylindrical rods are symmetrically and slidably mounted inside the rotating ring, and one end, close to the reversing valve, of each cylindrical rod penetrates through the rotating ring and is provided with an arc-shaped magnetic sheet.

Furthermore, a second spring is installed on the outer side of the cylindrical rod, and two ends of the second spring are fixedly installed on the cylindrical rod and inside the rotating ring respectively.

Furthermore, two adjusting bolts are symmetrically installed on the annular side face of the rotating ring through threaded connection, and one ends of the adjusting bolts extend into the rotating ring.

Furthermore, a third spring is arranged on the annular side surface of the T-shaped fixture block, and two ends of the third spring are fixedly arranged on the T-shaped fixture block and the bottom end of the rotating ring respectively.

The utility model has the advantages that:

1. the V-shaped clamping block is driven to move and be attached to the connecting nut through rotation of the rotating block, looseness of the connecting nut is avoided, the position of the V-shaped clamping block is adjusted through rotation of the rotating ring, the V-shaped clamping block is aligned to the connecting nut, the connecting rod rotates around the fixed pin, the connecting rod rotates to drive the V-shaped clamping block to move and be attached to the connecting nut, and the purpose of preventing the connecting nut from loosening is achieved.

2. The adjusting bolt is screwed to drive the inclined plane block to move, and then the T-shaped clamping block is extruded to move to clamp and fix the rotating block, the inclined plane block is pushed to move when the adjusting bolt rotates, the inclined plane block moves to push the support ring to move upwards through the inclined plane, and the support ring moves upwards to drive the T-shaped clamping block to move upwards to enter the clamping hole, so that the rotating block is clamped and fixed.

3. Through the inclined plane piece removal extrusion cylinder pole removal, the cylinder pole removes and drives the arc magnetic sheet and remove and adsorb the laminating with the switching-over valve, and the inclined plane piece removes behind the one end distance and the laminating of cylinder pole, and then promotes the cylinder pole and remove, and the cylinder pole removes and drives the arc magnetic sheet and remove and adsorb the laminating with the switching-over valve, and then the position of fixed swivel becket, realizes the function of joint fixed connection nut, avoids coupling nut the not hard up condition to appear.

Drawings

Fig. 1 is a schematic perspective view of a pneumatic double-seat reversing valve provided by the present invention;

fig. 2 is a schematic view of a partial cross-sectional structure of a pneumatic double-seat reversing valve provided by the present invention;

fig. 3 is a schematic view of a partially enlarged structure of a pneumatic double-seat reversing valve according to the present invention.

In the figure: 1. a pneumatic actuator; 2. a diverter valve; 3. a connecting nut; 4. a rotating ring; 5. a V-shaped clamping block; 6. a connecting rod; 7. rotating the block; 8. a T-shaped fixture block; 9. a support ring; 10. a bevel block; 11. adjusting the bolt; 12. a first spring; 13. a cylindrical rod; 14. a second spring; 15. an arc magnetic sheet; 16. a third spring; 17. a fixing pin; 18. a torsion spring.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1-3, a pneumatic double-seat reversing valve, including pneumatic actuator 1, reversing valve 2 and coupling nut 3, coupling nut 3 is installed to pneumatic actuator 1 bottom, coupling nut 3 is installed on 2 tops of reversing valve, the design of coupling nut 3 is convenient for pneumatic actuator 1 and reversing valve 2 to be connected, it installs swivel becket 4 to rotate on 2 annular sides of reversing valve, two turning blocks 7 are installed to swivel becket 4 top symmetry rotation, 7 top welding of turning block has connecting

rod

6, and 6 other ends welding of connecting rod has V

type fixture block

5, 5 joint of V type fixture block is in the coupling nut 3 outside, the design of V type fixture block 5 is convenient for carry out the joint to coupling nut 3 and fix, avoid coupling nut 3 not hard up the condition to appear, the design of turning block 7 and connecting rod 6 is convenient for V type fixture block 5 to rotate and coupling nut 3 separation, 4 bottom symmetry sliding installation two T type fixture blocks 8 of turning ring, and 8 tops of T type fixture block extend to inside turning block 7, the design of T type fixture block 8 is convenient for turning block 7 to carry out the joint and fix.

The utility model discloses in, it is required to explain, two recesses of 4 top symmetrical processing of swivel becket, and recess inside weld has fixed pin 17, it installs turning block 7 to rotate on the 17 annular side of fixed pin, the design of fixed pin 17 is convenient for the rotation installation of turning block 7, the welding has torsional spring 18 on the 17 annular side of fixed pin, and the welding of the 18 outside of torsional spring is inside turning block 7, the rotation of turning block 7 of being convenient for of the design of torsional spring 18 resets, and then the rotation of the V type fixture block 5 of being convenient for resets, 7 bottom processing of turning block have the card hole, the size of card hole cross section is the same with the size of 8 top cross sections of T type fixture block, the design in card hole is convenient for T type fixture block 8 and is extended to inside turning block 7, and carry out the joint to turning block 7 and fix, the inside bottom processing of recess has the cylinder groove, cylinder inslot portion slidable mounting has T type fixture block 8, the welding has support ring 9 on the 8 annular side of T type fixture block.

Particularly, an inclined plane block 10 is slidably mounted in the rotating ring 4, one end of the inclined plane block 10 is welded with a spring I12, the other end of the spring I12 is welded in the rotating ring 4, the design of the spring I12 is convenient for the movement and the reset of the inclined plane block 10, one end of the inclined plane block 10 is provided with a rectangular groove, the design of the rectangular groove is convenient for the movement of the inclined plane block 10 to be free from the influence of a T-shaped clamping block 8, two cylindrical rods 13 are symmetrically and slidably mounted in the rotating ring 4, one end of each cylindrical rod 13, which is close to a reversing valve 2, penetrates through the rotating ring 4 and is provided with an arc-shaped magnetic sheet 15, one end of each arc-shaped magnetic sheet 15 is attached to the annular side face of the reversing valve 2 in an adsorption mode, the position of the rotating ring 4 is further fixed, the purpose of clamping the fixed connecting nut 3 is achieved at the same time, and a spring II 14 is mounted on the outer side of each cylindrical rod 13, two ends of a second spring 14 are respectively welded on the cylindrical rod 13 and inside the rotating ring 4, the elastic force of the second spring 14 is larger than the adsorption force between the arc-shaped magnetic sheet 15 and the reversing valve 2, so that the cylindrical rod 13 and the arc-shaped magnetic sheet 15 can be pulled to move and reset conveniently, two adjusting bolts 11 are symmetrically installed on the annular side face of the rotating ring 4 through threaded connection, one ends of the adjusting bolts 11 extend to the inside of the rotating ring 4 to be attached to the inclined plane block 10, the adjusting bolts 11 are designed to facilitate pushing the inclined plane block 10 to move, a third spring 16 is installed on the annular side face of the T-shaped fixture block 8, two ends of the third spring 16 are respectively welded on the T-shaped fixture block 8 and the bottom end of the rotating ring 4, the initial position of the third spring 16 is in a compression state, and the elastic force of the third spring 16 facilitates moving and resetting of the T-shaped fixture block 8.

The working principle is as follows: when the connecting nut 3 needs to be clamped and fixed, the position of the V-shaped fixture block 5 is adjusted by rotating the rotating ring 4, so that the V-shaped fixture block 5 is aligned with the connecting nut 3, then the connecting rod 6 rotates around the fixing pin 17, the connecting rod 6 rotates to drive the V-shaped fixture block 5 to move and be attached to the connecting nut 3, the connecting rod 6 rotates to extrude the torsion spring 18, so that the torsion spring 18 generates torsion, the torsion force of the torsion spring 18 facilitates the movement and reset of the L-shaped rod and the V-shaped fixture block 5, at the moment, the clamping hole in the rotating block 7 is aligned with the T-shaped fixture block 8 up and down, then the adjusting bolt 11 is screwed, the adjusting bolt 11 rotates and simultaneously pushes the bevel block 10 to move, the bevel block 10 moves to push the support ring 9 to move upwards by virtue of the bevel, the bevel block 10 moves to stretch the first spring 12, so that the first spring 12 generates elasticity, the elasticity of the first spring 12 facilitates the movement and reset of the bevel block 10, the support ring 9 moves upwards to drive the T-shaped fixture block 8 to move and enter the clamping hole, the T-shaped fixture block 7 is clamped and fixed, the T-shaped fixture block 8 moves to move, the T-shaped fixture block 16 moves to extrude, so that the third spring 16, one end of the arc-shaped fixture block 16 moves to move, the arc-shaped fixture block 10 moves to move, the cylindrical fixture block 13 and then the cylindrical column 3, the cylindrical fixture block 13 moves to drive the cylindrical column 3 to move, and further to drive the cylindrical column 3 to move, and further to move, the cylindrical column connection rod 13 to prevent the cylindrical fixture block 13 from moving, and further realize the clamping function of the cylindrical fixture 3, and the cylindrical fixture 4, and the cylindrical fixture block 13 from moving, and the cylindrical fixture block 13.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components.

Claims

1. The utility model provides a pneumatic two-seater switching-over valve, includes pneumatic actuator (1), switching-over valve (2) and coupling nut (3), coupling nut (3) are installed to pneumatic actuator (1) bottom, coupling nut (3) are installed on switching-over valve (2) top, its characterized in that, it installs swivel becket (4) to rotate on switching-over valve (2) the annular side face, two turning blocks (7) of swivel becket (4) top symmetry rotation installation, turning block (7) top fixed mounting has connecting rod (6), and connecting rod (6) other end fixed mounting has V type fixture block (5), V type fixture block (5) joint is in coupling nut (3) outside, two T type fixture blocks (8) of swivel becket (4) bottom symmetry slidable mounting, and inside T type fixture block (8) top extends to turning block (7).

2. The pneumatic double-seat reversing valve according to claim 1, characterized in that two grooves are symmetrically formed in the top end of the rotating ring (4), a fixing pin (17) is fixedly installed in each groove, and a rotating block (7) is rotatably installed on the annular side surface of each fixing pin (17).

3. The pneumatic double-seat reversing valve according to claim 2, wherein a torsion spring (18) is fixedly mounted on the annular side surface of the fixing pin (17), the outer side of the torsion spring (18) is fixedly mounted inside the rotating block (7), a clamping hole is formed in the bottom end of the rotating block (7), and the size of the cross section of the clamping hole is the same as that of the cross section of the top end of the T-shaped clamping block (8).

4. The pneumatic double-seat reversing valve according to claim 2, wherein a cylindrical groove is formed in the bottom end of the inner portion of the groove, a T-shaped clamping block (8) is slidably mounted in the cylindrical groove, and a support ring (9) is mounted on the annular side surface of the T-shaped clamping block (8).

5. A pneumatic double-seat reversing valve according to claim 1, wherein a bevel block (10) is slidably mounted inside the rotating ring (4), one end of the bevel block (10) is fixedly provided with a first spring (12), the other end of the first spring (12) is fixedly mounted inside the rotating ring (4), two cylindrical rods (13) are symmetrically slidably mounted inside the rotating ring (4), and one end of each cylindrical rod (13) close to the reversing valve (2) penetrates through the rotating ring (4) and is provided with an arc-shaped magnetic sheet (15).

6. A pneumatic double-seat reversing valve according to claim 5, characterized in that a second spring (14) is arranged on the outer side of the cylindrical rod (13), and two ends of the second spring (14) are fixedly arranged on the cylindrical rod (13) and inside the rotating ring (4) respectively.

7. A pneumatic two-seat reversing valve according to claim 1, characterized in that two adjusting bolts (11) are symmetrically installed on the annular side surface of the rotating ring (4) through threaded connection, and one end of each adjusting bolt (11) extends into the rotating ring (4).

8. The pneumatic double-seat reversing valve according to claim 1, wherein a third spring (16) is mounted on the annular side surface of the T-shaped clamping block (8), and two ends of the third spring (16) are fixedly mounted on the T-shaped clamping block (8) and the bottom end of the rotating ring (4) respectively.