Stop valve with quick connection structure

Abstract

The utility model relates to the technical field of stop valves, in particular to a stop valve with a quick connecting structure, which comprises a stop valve and flanges fixedly arranged at two ends of the stop valve, connecting components are symmetrically sleeved on the outer side of the stop valve, and each connecting component comprises a hollow conical sleeve sleeved on the outer side of the stop valve. The outer side of the hollow conical sleeve is slidably sleeved with a top ring, a plurality of insertion rods are fixedly installed on the surface of one side of the top ring at equal angles, and a plurality of fastening assemblies are fixedly connected to the surface of one side of the top ring. According to the quick connecting device, the multiple inserting rods of the connecting assembly are inserted into holes of a flange of the stop valve and a pipeline flange, so that the stop valve and the pipeline are connected, then the multiple arc-shaped plates are turned over, the inserting plates are clamped in clamping grooves of the inserting rods, second nuts are screwed, the multiple arc-shaped plates are pressed down and fastened, and the stop valve and the pipeline are quickly connected and fixed; therefore, bolts for connecting and fastening the two flanges are replaced, the time for mounting and dismounting the stop valve is shortened, and the stop valve is more convenient to mount and dismount.

Description

Technical Field

[0001] The utility model relates to the technical field of globe valves, in particular to a globe valve with a quick connection structure. Background Technique

[0002] A globe valve, also known as a stop valve, belongs to a forced-sealing valve and is one of the most widely used valves. The closing principle of the globe valve is to rely on the valve stem pressure to make the sealing surface of the valve flap closely fit with the sealing surface of the valve seat to prevent the medium from flowing through.

[0003] The publication number is: CN219954244U, and the disclosed "a globe valve includes a valve body, a valve cover, a valve flap, and a valve stem. The valve body is provided with an inlet, an outlet, and a valve port. The lower part of the valve cover is connected to the upper part of the valve body. A valve cover hole is opened on the valve cover. The valve stem passes through the valve cover hole. An installation sleeve is arranged between the valve stem and the valve cover. The outer side of the installation sleeve is in interference fit with the inner side of the valve cover hole. The valve flap is connected to the lower end of the valve stem. Along the axial direction of the valve stem, the valve flap is two overlapping oblate spheres. At least one of the valve flap and the valve port has elasticity, and the valve flap and the valve port cooperate for sealing. Since the valve flap is two overlapping oblate spheres, the spherical surface of the valve flap will form two tangencies with the inner wall of the valve port, and at least one of the valve flap and the valve port has good elasticity, so that a good sealing effect is achieved when the two are connected. The overlapping oblate spherical structure valve flap forms a double sealing effect to ensure that the fluid in the globe valve will not leak";

[0004] When in use, there are still certain drawbacks. Similar to most existing globe valves, when installing the globe valve at a pipeline, it is connected through the flanges at both ends of the valve body. And generally, the number of bolts required for flange connection is four or more to ensure the firmness of the connection between the two flanges. Moreover, the nuts need to be tightened according to the diagonal tightening principle of pre-tightening first and then tightening. It will take a lot of time to tighten multiple bolts and nuts, resulting in a slow installation and disassembly speed of the globe valve. Content of the Utility Model

[0005] The purpose of the utility model is to provide a globe valve with a quick connection structure to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A globe valve with a quick connection structure, comprising a globe valve and flanges fixedly arranged at both ends of the globe valve. A connecting component is symmetrically sleeved outside the globe valve. The connecting component includes a hollow conical sleeve sleeved outside the globe valve. A top ring is slidably sleeved outside the hollow conical sleeve. A plurality of insertion rods are fixedly installed at equal angles on one surface of the top ring. A plurality of fastening components are fixedly connected to one surface of the top ring. The fastening component includes a plurality of connecting seats fixedly installed at equal angles on one surface of the top ring. A rotating rod is rotatably connected inside the connecting seat. An arc-shaped plate is fixedly installed on the outer surface of the rotating rod.

[0008] Furthermore: A first nut is movably sleeved outside the hollow conical sleeve. A first thread that is screwed with the first nut is provided on the outer surface of the hollow conical sleeve.

[0009] Furthermore: A plurality of sliding grooves are equally angled and opened on the outer surface of the hollow conical sleeve. A plurality of sliding blocks are fixedly installed at equal angles on the inner surface of the top ring. The sliding blocks are slidably connected to the sliding grooves.

[0010] Furthermore: The insertion rods movably penetrate through the installation holes of the flange.

[0011] Furthermore: A second nut is movably sleeved outside a plurality of the arc-shaped plates. A second thread that is screwed with the second nut is fixedly provided on the outer surfaces of a plurality of the arc-shaped plates.

[0012] Furthermore: An insertion plate is fixedly installed on the inner surface of the arc-shaped plate. A card slot is opened on the outer surface of the insertion rod. The insertion plate is movably inserted into the card slot.

[0013] Furthermore: A sealing washer is movably arranged on one surface of the flange. A plurality of the insertion rods all movably penetrate through the sealing washer.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] 1. After inserting a plurality of insertion rods into the holes of the flange, turn the first nut. Through the screwing of the first nut and the first thread, and at the same time as the outer diameter of the hollow conical sleeve increases, the first nut is gradually tightened, so that the first nut abuts against the top ring to fix it, reducing the risk of loosening of the first nut and enabling the quick connection of the globe valve and the pipeline.

[0016] 2. By flipping multiple arc-shaped plates to make the inner surface of the arc-shaped plates fit the side wall of the flange, at this time, the insertion plate is inserted into the corresponding card slot, and then the second nut is screwed so that the second nut is screwed on the outside of the multiple arc-shaped plates to fix the insertion plate. According to the distance between the connecting pipes, replace the sealing washers with different thicknesses so that the insertion plate fits the side wall of the pipe flange after being inserted into the card slot, thereby quickly connecting and fixing the globe valve and the pipe, replacing the bolt connection to fasten the two flanges, reducing the installation and disassembly time of the globe valve, and making the globe valve more convenient for installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a schematic diagram of the split structure of the connection component and the fastening component in the present utility model;

[0019] Figure 3 is a schematic diagram of the vertical cross-sectional structure of the connection component and the fastening component in the present utility model;

[0020] Figure 4 is a schematic diagram of the partial oblique cross-sectional structure of the connection component and the fastening component in the present utility model.

[0021] In the figure: 1, globe valve; 101, flange; 2, connection component; 201, hollow tapered sleeve; 202, first thread; 203, chute; 204, top ring; 205, insertion rod; 206, card slot; 207, first nut; 208, slider; 3, fastening component; 301, connection seat; 302, rotating rod; 303, arc-shaped plate; 304, second thread; 305, insertion plate; 306, second nut; 307, sealing washer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1 to 4, in the embodiment of the present utility model, a globe valve with a quick connection structure includes a globe valve 1 and flanges 101 fixedly arranged at both ends of the globe valve 1. A connection assembly 2 is symmetrically sleeved outside the globe valve 1. The connection assembly 2 includes a hollow conical sleeve 201 sleeved outside the globe valve 1. A top ring 204 is slidably sleeved outside the hollow conical sleeve 201. A plurality of insertion rods 205 are fixedly installed at equal angles on one surface of the top ring 204. A plurality of fastening assemblies 3 are fixedly connected to one surface of the top ring 204. The fastening assembly 3 includes a plurality of connection seats 301 fixedly installed at equal angles on one surface of the top ring 204. A rotating rod 302 is rotatably connected inside the connection seat 301. An arc-shaped plate 303 is fixedly installed on the outer surface of the rotating rod 302.

[0024] Specifically, the flange 101 of the globe valve 1 is connected to the flange 101 of the connecting pipeline through the connection assembly 2, and then the connection assembly 2 is fixed through the fastening assembly 3, so that the globe valve 1 can be quickly installed.

[0025] Embodiment 1

[0026] As Figures 3 - 4 shown, in this embodiment, a first nut 207 is movably sleeved outside the hollow conical sleeve 201. A first thread 202 engaged with the first nut 207 is provided on the outer surface of the hollow conical sleeve 201; a plurality of sliding grooves 203 are equally angled and opened on the outer surface of the hollow conical sleeve 201. A plurality of sliding blocks 208 are fixedly installed at equal angles on the inner surface of the top ring 204. The sliding blocks 208 are slidably connected with the sliding grooves 203; the insertion rods 205 movably penetrate through the installation holes of the flange 101.

[0027] In this embodiment, after the plurality of insertion rods 205 are inserted into the holes of the flange 101, the first nut 207 is rotated. Through its engagement with the first thread 202, and at the same time as the outer diameter of the hollow conical sleeve 201 increases, the first nut 207 is gradually tightened, so that the first nut 207 abuts against the top ring 204 to fix it, reducing the risk of loosening of the first nut 207 and enabling the quick connection of the globe valve 1 and the pipeline.

[0028] As Figures 3 - 4 shown, in this embodiment, a second nut 306 is movably sleeved outside the plurality of arc-shaped plates 303. A second thread 304 engaged with the second nut 306 is fixedly provided on the outer surface of the plurality of arc-shaped plates 303; an insertion plate 305 is fixedly installed on the inner surface of the arc-shaped plate 303. A card slot 206 is opened on the outer surface of the insertion rod 205. The insertion plate 305 is movably inserted into the card slot 206; a sealing washer 307 is movably arranged on one surface of the flange 101. The plurality of insertion rods 205 all movably penetrate through the sealing washer 307.

[0029] During specific implementation, under the rotational connection action of the rotating rod 302 and the connecting seat 301, a plurality of arc-shaped plates 303 are flipped so that the inner surface of the arc-shaped plate 303 fits against the side wall of the flange 101. At this time, the insertion plate 305 is inserted into the corresponding card slot 206. Then, the second nut 306 is screwed so that the second nut 306 is screwed onto the outside of the plurality of arc-shaped plates 303 to fix the insertion plate 305. According to the distance between the connecting pipes, sealing washers 307 of different thicknesses are replaced so that the insertion plate 305 fits against the side wall of the flange 101 of the pipe after being inserted into the card slot 206, thereby quickly connecting and fixing the stop valve 1 and the pipe, replacing the bolt connection for fastening the two flanges 101, reducing the installation and disassembly time of the stop valve 1, and making the stop valve 1 more convenient for installation and disassembly.

[0030] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0031] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A stop valve with a quick connection structure, comprising a stop valve (1) and flanges (101) fixedly arranged at both ends of the stop valve (1), characterized in that: The outer side of the stop valve (1) is symmetrically sleeved with a connection assembly (2), the connection assembly (2) comprising a hollow conical sleeve (201) sleeved on the outer side of the stop valve (1), the outer side of the hollow conical sleeve (201) being slidably sleeved with a top ring (204), a side surface of the top ring (204) having a plurality of plug rods (205) fixedly mounted at equal angles, a side surface of the top ring (204) having a plurality of fastening assemblies (3) fixedly connected, the fastening assembly (3) comprising a plurality of connection seats (301) fixedly mounted at equal angles on a side surface of the top ring (204), a rotating rod (302) being rotatably connected inside the connection seat (301), and an arc-shaped plate (303) being fixedly mounted on the outer side surface of the rotating rod (302).

2. A stop valve with a quick connection structure according to claim 1, characterized in that: A movable sleeve outside the hollow conical sleeve (201) is provided with a No. 1 nut (207), and an outer surface of the hollow conical sleeve (201) is provided with a No. 1 thread (202) screwed with the No. 1 nut (207).

3. A stop valve with a quick connection structure according to claim 1, characterized in that: The outer surface of the hollow conical sleeve (201) is provided with a plurality of slide grooves (203) at equal angles, and the inner surface of the top ring (204) is fixedly provided with a plurality of sliders (208) at equal angles, and the sliders (208) are slidably connected to the slide grooves (203).

4. A stop valve with a quick connection structure according to claim 1, characterized in that: The insertion rod (205) movably penetrates the installation hole of the flange (101).

5. The stop valve with a quick connection structure according to claim 1, characterized in that: A number-two nut (306) is movably sleeved on the outer sides of the plurality of arc-shaped plates (303), and a number-two thread (304) screwed together with the number-two nut (306) is fixedly disposed on the outer sides of the plurality of arc-shaped plates (303).

6. A stop valve with a quick connection structure according to claim 1, characterized in that: An inserting plate (305) is fixedly mounted on the inner surface of the arc-shaped plate (303), a clamping groove (206) is provided on the outer surface of the inserting rod (205), and the inserting plate (305) is movably plugged into the clamping groove (206).

7. The stop valve with a quick connection structure according to claim 1, characterized in that: A sealing gasket (307) is movably provided on one side surface of the flange (101), and the plurality of insertion rods (205) all movably penetrate the sealing gasket (307).

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