CN219263274U

CN219263274U - Check valve with clamp connection structure

Info

Publication number: CN219263274U
Application number: CN202320461040.0U
Authority: CN
Inventors: 余海林; 王志义
Original assignee: Shanghai Kailai Valve Group Co ltd
Current assignee: Shanghai Kailai Valve Group Co ltd
Priority date: 2023-03-13
Filing date: 2023-03-13
Publication date: 2023-06-27
Anticipated expiration: 2033-03-13

Abstract

The utility model provides a check valve with a clamp connection structure, which has the advantages that the design structure is simple, the operation is convenient, a pipe and an internal thread pipe can be clamped and pressed and fixed in a hoop manner, the stability of pipe orifice connection is improved, the service life is prolonged, the check valve comprises a check valve body, two sides of the check valve body are respectively connected with the internal thread pipe, one of the two internal thread pipes is an inlet, the other is an outlet, circular plates are fixedly arranged on the outer sides of the two internal thread pipes, two vertical grooves are symmetrically arranged on the outer sides of the two circular plates, adjusting mechanisms are arranged in the four vertical grooves, pipe hoop mechanisms are arranged on the four adjusting mechanisms, lantern rings are rotatably arranged on the outer sides of the two circular plates, annular racks are arranged on the inner sides of the two lantern rings, the annular racks are embedded in the inner walls of the two annular grooves, the annular racks are connected with the corresponding two adjusting mechanisms, and the adjusting mechanisms comprise threaded rods.

Description

Check valve with clamp connection structure

Technical Field

The utility model relates to the technical field of check valves, in particular to a check valve with a clamp connection structure.

Background

The check valve is a valve with a circular valve clack as an opening and closing part, an axial flow type valve structure and a function of blocking the backflow of a medium by means of a spring and the medium pressure. Belongs to automatic valves, also called check valves, one-way valves, reflux valves or isolation valves, and has wide application in the field of valves.

When the existing check valve is installed, two ends of the check valve are usually fixedly connected with a water inlet pipeline and a water drain pipeline flange or threads, the connection stability is poor by means of the connection mode, the joints at the two ends of the check valve bear the weight of the pipeline, the check valve can be distorted for a long time, the pipeline is at risk of leakage, and the service life is reduced.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model solves the technical problems as follows: the existing check valve is generally fixedly connected with a water inlet pipeline and a water drain pipeline flange at two ends during installation, connection stability is poor, joints at two ends of the check valve bear the weight of a pipeline, distortion can occur when the check valve is long, the pipeline is enabled to have leakage risk, service life is shortened, and the check valve with the clamp connection structure is provided.

To achieve the above object, the present utility model provides:

the utility model provides a check valve that possesses clamp connection structure, including the check valve body, the both sides of check valve body are connected with the internal thread pipeline respectively, one of two internal thread pipelines is the import, another is the export, the equal fixed mounting in outside of two internal thread pipelines has the plectane, two vertical grooves have all been seted up to the equal symmetry in the outside of two plectanes, all be provided with adjustment mechanism in four vertical grooves, all install pipeline staple bolt mechanism on four adjustment mechanism, the lantern ring is all rotated in the outside of two plectanes, the ring channel has all been seted up to the inboard of two lantern rings, all embedded annular rack on the inner wall of two ring channels, annular rack links to each other with two adjustment mechanism that correspond.

Preferably, the adjusting mechanism comprises a threaded rod, the threaded rod is rotatably mounted on the inner wall of the bottom of the vertical groove, the top end of the threaded rod extends into the annular groove and is provided with a gear, and the gear is meshed with the corresponding annular rack.

Preferably, the top of vertical groove has seted up the through-hole, threaded rod and through-hole swing joint.

Preferably, the pipeline hoop mechanism comprises an arc-shaped clamping plate, a vertical block is fixedly arranged on the arc-shaped clamping plate, the vertical block is slidably arranged in the vertical groove and is in threaded connection with the threaded rod, and an anti-slip pad is arranged on the inner side of the arc-shaped clamping plate; the arc clamping plate and the anti-slip pad are used for clamping, compressing and fixing the pipeline and the internal thread pipeline, so that the stability of the connection of the pipe orifice can be ensured.

Preferably, the outer side of the circular plate is fixedly provided with a limiting ring, the inner side of the lantern ring is provided with a limiting groove, and the limiting ring is in sliding connection with the inner wall of the limiting groove; the cooperation of spacing ring and spacing groove can guarantee that the lantern ring is rotatory in the outside stability of plectane.

Preferably, two round holes are formed in the outer side of the lantern ring, bolts are movably mounted in the two round holes, a plurality of screw grooves are uniformly formed in the outer side of the limiting ring, and the bolts are in threaded connection with the corresponding screw grooves; the bolt is connected with the screw groove, and can lock and fix the lantern ring.

Preferably, a vertical rod is fixedly arranged in the vertical groove, and the vertical block is slidably arranged on the outer side of the vertical rod; the vertical rod can guarantee the vertical movement of the vertical block.

Compared with the prior art, the utility model has the advantages that:

1. loosening the bolts and leaving the screw grooves, releasing the fixation of the lantern ring, rotating the lantern ring to drive the annular rack to rotate, driving the corresponding two gears to rotate by the annular rack, driving the corresponding two threaded rods to rotate by the two gears, driving the corresponding two vertical blocks to move by the two threaded rods, and driving the two arc clamping plates to clamp and press the pipeline and the internal threaded pipeline to fix the pipeline, so that the stability of pipe orifice connection can be ensured, and then connecting the bolts with the screw grooves, so that the lantern ring can be locked and fixed, the stability of pipe orifice connection can be improved, and the service life can be prolonged;

2. the fixing of the pipeline and the internal thread pipeline can be released by reverse operation, and the operation and the use are convenient;

the pipe clamping device is simple in structure and convenient to operate, the pipe and the internal thread pipe can be clamped, pressed and fixed in a hoop mode, stability of pipe orifice connection is improved, and service life is prolonged.

Drawings

FIG. 1 is a schematic diagram of the main structure of the present design;

FIG. 2 is a schematic cross-sectional view of FIG. 1 of the present design;

FIG. 3 is a schematic view of the portion A of FIG. 2 in the present design;

fig. 4 is a schematic perspective view of a limiting ring in the present design.

In the figure: 1. a check valve body; 2. an internally threaded pipe; 3. a circular plate; 4. an arc clamping plate; 5. a vertical groove; 6. a vertical rod; 7. a threaded rod; 8. a vertical block; 9. a through hole; 10. an annular groove; 11. a gear; 12. an annular rack; 13. a limiting ring; 14. a limit groove; 15. a screw groove; 16. a bolt; 17. a collar; 18. an anti-slip mat.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings.

Referring to fig. 1-4, a check valve with a clamp connection structure comprises a check valve body 1, wherein two sides of the check valve body 1 are respectively connected with an internal thread pipeline 2, one of the two internal thread pipelines 2 is an inlet, the other is an outlet, circular plates 3 are fixedly installed on the outer sides of the two internal thread pipelines 2, two vertical grooves 5 are symmetrically formed in the outer sides of the two circular plates 3, adjusting mechanisms are arranged in the four vertical grooves 5, pipeline hoop mechanisms are arranged on the four adjusting mechanisms, lantern rings 17 are rotatably arranged on the outer sides of the two circular plates 3, annular grooves 10 are formed in the inner sides of the two lantern rings 17, annular racks 12 are embedded in the inner walls of the two annular grooves 10, and the annular racks 12 are connected with the corresponding two adjusting mechanisms.

Preferably, the adjustment mechanism includes threaded rod 7, and threaded rod 7 rotates and installs on the bottom inner wall of vertical groove 5, and the top of threaded rod 7 extends to ring channel 10 in and installs gear 11, and gear 11 meshes with corresponding annular rack 12, and through-hole 9 has been seted up at the top of vertical groove 5, threaded rod 7 and through-hole 9 swing joint, and two threaded rods 7 drive two vertical pieces 8 that correspond and remove, and two vertical pieces 8 drive two arc splint 4 to pipeline and internal thread pipeline 2 centre gripping compress tightly fixedly.

In the embodiment, the pipeline hoop mechanism comprises an arc-shaped clamping plate 4, a vertical block 8 is fixedly arranged on the arc-shaped clamping plate 4, the vertical block 8 is slidably arranged in a vertical groove 5 and is in threaded connection with a threaded rod 7, and an anti-slip pad 18 is arranged on the inner side of the arc-shaped clamping plate 4; the arc clamping plate 4 and the anti-slip pad 18 are used for clamping, compressing and fixing the pipeline and the internal thread pipeline 2, so that the stability of the pipe orifice connection can be ensured.

In the embodiment, a limiting ring 13 is fixedly arranged on the outer side of the circular plate 3, a limiting groove 14 is formed in the inner side of a lantern ring 17, and the limiting ring 13 is in sliding connection with the inner wall of the limiting groove 14; the cooperation of the limiting ring 13 and the limiting groove 14 can ensure that the lantern ring 17 stably rotates on the outer side of the circular plate 3.

In the embodiment, two round holes are formed in the outer side of the collar 17, bolts 16 are movably mounted in the two round holes, a plurality of screw grooves 15 are uniformly formed in the outer side of the limiting ring 13, and the bolts 16 are in threaded connection with the corresponding screw grooves 15; the bolt 16 is connected with the screw groove 15, and can lock and fix the lantern ring 17.

In the embodiment, a vertical rod 6 is fixedly arranged in the vertical groove 5, and a vertical block 8 is slidably arranged on the outer side of the vertical rod 6; the vertical rod 6 can ensure that the vertical block 8 moves vertically.

Working principle: during the use, install check valve body 1 on the pipeline through two internal thread pipelines 2, then loosen bolt 16 and leave helicoidal groove 15, remove the fixed to lantern ring 17, rotate lantern ring 17 and drive annular rack 12 rotation, annular rack 12 drives two corresponding gears 11 rotation, two gears 11 drive two threaded rods 7 rotation, two threaded rods 7 drive two vertical pieces 8 that correspond and remove, two vertical pieces 8 drive two arc splint 4 to pipeline and internal thread pipeline 2 centre gripping compress tightly fixedly, can guarantee the stability of mouth of pipe connection, then be connected bolt 16 with helicoidal groove 15, can lock lantern ring 17 fixedly, another pipeline and internal thread pipeline 2 compress tightly fixedly in the same way, reverse operation can remove the fixed to pipeline and internal thread pipeline 2.

The utility model is not limited to the above-mentioned best mode, any person can obtain other various products under the teaching of the utility model, but any change in shape or structure is within the scope of protection of the utility model, and all the technical schemes are the same or similar to the utility model.

Claims

1. The utility model provides a check valve that possesses clamp connection structure, includes check valve body (1), and the both sides of check valve body (1) are connected with internal thread pipeline (2) respectively, and two internal thread pipeline (2) are one for the import, and another is export, its characterized in that: two equal fixed mounting in the outside of internal thread pipeline (2) has plectane (3), and two vertical groove (5) have all been seted up to the outside of two plectanes (3) symmetry, all are provided with adjustment mechanism in four vertical grooves (5), all install pipeline staple bolt mechanism on four adjustment mechanism, and lantern ring (17) are all installed in the outside of two plectanes (3) rotation, and annular groove (10) have all been seted up to the inboard of two lantern rings (17), have all embedded annular rack (12) on the inner wall of two annular groove (10), and annular rack (12) link to each other with two adjustment mechanism that correspond.

2. A check valve with a clip connection as defined in claim 1, wherein: the adjusting mechanism comprises a threaded rod (7), the threaded rod (7) is rotatably arranged on the inner wall of the bottom of the vertical groove (5), the top end of the threaded rod (7) extends into the annular groove (10) and is provided with a gear (11), and the gear (11) is meshed with a corresponding annular rack (12).

3. A check valve with a clip connection as defined in claim 2, wherein: the top of vertical groove (5) has seted up through-hole (9), threaded rod (7) and through-hole (9) swing joint.

4. A check valve with a clip connection as defined in claim 2, wherein: the pipeline hoop mechanism comprises an arc-shaped clamping plate (4), a vertical block (8) is fixedly installed on the arc-shaped clamping plate (4), the vertical block (8) is slidably installed in the vertical groove (5) and is in threaded connection with the threaded rod (7), and an anti-slip pad (18) is arranged on the inner side of the arc-shaped clamping plate (4).

5. A check valve with a clip connection as defined in claim 1, wherein: the outside fixed mounting of plectane (3) has spacing ring (13), and spacing groove (14) have been seted up to the inboard of lantern ring (17), and the inner wall sliding connection of spacing ring (13) and spacing groove (14).

6. A check valve with a clip connection as defined in claim 5, wherein: two round holes are formed in the outer side of the lantern ring (17), bolts (16) are movably mounted in the two round holes, a plurality of screw grooves (15) are uniformly formed in the outer side of the limiting ring (13), and the bolts (16) are in threaded connection with the corresponding screw grooves (15).

7. A check valve with a clip connection as defined in claim 1, wherein: the vertical groove (5) is internally and fixedly provided with a vertical rod (6), and the vertical block (8) is slidably arranged on the outer side of the vertical rod (6).