Ball valve convenient to assemble

Abstract

The utility model relates to the technical field of ball valves, in particular to a ball valve convenient to assemble, which comprises a ball valve body, a first flange is fixedly connected to the right end of the ball valve body, a second flange is movably arranged at the left end of the ball valve body, and an assembling mechanism is arranged between the second flange and the ball valve body. A top sleeve is arranged in the middle of the top end of the ball valve body, a valve rod is movably arranged in the top sleeve, a handle is arranged at the top end of the valve rod, a valve element is arranged at the position, located in the ball valve body, of the lower end of the valve rod, and a positioning mechanism is arranged between the top sleeve and the valve rod. The ball valve body and the second flange are connected through matching of the insertion pipe and the threaded head, a clamping structure of the clamping jaw and the clamping seat and a mode of tightening the clamping jaw through the nut sleeve, so that rapid and convenient assembly can be achieved, complex punching and a large number of bolt installation operations are not needed, and the problems that a traditional ball valve is tedious in assembly and low in efficiency are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, in particular to a ball valve which is easy to assemble. Background Art

[0002] In various industrial pipeline systems and civil pipeline facilities, ball valves are a widely used control component. Ball valves achieve the conduction, cutoff or flow regulation of the fluid in the pipeline through the rotation of the ball (valve core).

[0003] When traditional ball valves are connected with bolts, it is necessary to accurately drill holes on the flange and then install the bolts and nuts one by one. The operation process is cumbersome and requires the use of special tools, resulting in low installation efficiency. Although the welding method has a firm connection, it requires professional welding equipment and technicians, and it is not easy to disassemble and repair after welding. If a component is damaged during later use, it will be very troublesome to repair or replace it, and it may even be necessary to cut the pipe for operation, which not only increases the maintenance cost, but also affects the normal operation of the entire pipeline system. Utility Model Content

[0004] The utility model aims to provide a ball valve which is easy to assemble, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A ball valve that is easy to assemble, comprising

[0007] A ball valve body, wherein a flange 1 is fixedly connected to the right end of the ball valve body, a flange 2 is movably arranged at the left end of the ball valve body, and an assembly mechanism is arranged between the flange 2 and the ball valve body;

[0008] A top sleeve is arranged in the middle of the top end of the ball valve body, a valve stem is movably arranged inside the top sleeve, a handle is arranged at the top end of the valve stem, a valve core is arranged at the lower end of the valve stem inside the ball valve body, and a positioning mechanism is arranged between the top sleeve and the valve stem.

[0009] Preferably, the assembly mechanism includes a threaded head, which is integrally formed at the left end of the ball valve body, and a plurality of clamping claws are arranged at an equal arc at one end of the threaded head away from the ball valve body, the thread groove on the outer wall of the threaded head extends to the outer wall of the clamping claw, and the outer thread of the threaded head is connected to a nut sleeve;

[0010] Preferably, the assembly mechanism further comprises an insert, the insert is connected to the end of the second flange close to the threaded head, a slot is provided in the middle of the threaded head, the insert is movably sleeved with the slot, and a plurality of holders are provided with equal arcs on the right outer wall of the insert, and the holder matches the clamping claw;

[0011] Preferably, a sealing ring is provided at the connection between the cannula and the slot;

[0012] Preferably, the positioning mechanism comprises a movable disk, which is arranged at the outer wall of the middle part of the valve stem, and a plurality of positioning holes are arranged at equal arcs on the outer side of the movable disk, and the movable disk is movably connected to the inside of the top sleeve;

[0013] Preferably, the positioning mechanism also includes a sleeve, which is connected to the right side of the middle of the top sleeve, a pull rod is movably sleeved in the middle of the sleeve, a retaining ring is provided in the middle of the pull rod, and a spring is provided between the retaining ring and the right side of the sleeve and outside the pull rod.

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

[0015] The ball valve which is easy to assemble adopts the combination of the insert pipe and the threaded head and the clamping structure of the clamping claw and the socket in the connection between the ball valve body and the flange 2, and utilizes the method of tightening the clamping claw with a nut sleeve, so that fast and convenient assembly can be achieved without complicated drilling and a large number of bolt installation operations, and effectively solves the problem of complicated assembly and low efficiency of traditional ball valves.

[0016] The ball valve, which is easy to assemble, can realize reliable locking after adjusting the valve core angle by setting a positioning mechanism, utilizing a movable disk, a positioning hole and a pull rod structure with a spring, thereby avoiding the problem of valve core displacement caused by fluid impact and improving the use stability and reliability of the ball valve. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 This is a schematic diagram of the flange second installation structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the movable disk installation structure of the utility model;

[0020] Figure 4 For the utility model Figure 2 Enlarged schematic diagram at point A in the middle.

[0021] In the figure: 1. ball valve body; 2. flange 1; 3. flange 2; 4. top sleeve; 5. valve stem; 6. handle; 7. threaded head; 8. clamping claw; 9. nut sleeve; 10. insert; 11. slot; 12. seat; 13. movable disk; 14. positioning hole; 15. sleeve; 16. pull rod; 17. retaining ring; 18. spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1-4 As shown, a technical solution provided by the utility model:

[0024] A ball valve that is easy to assemble, comprising a ball valve body 1, a flange 1 2 is fixedly connected to the right end of the ball valve body 1, a flange 2 3 is movably arranged at the left end of the ball valve body 1, an assembly mechanism is arranged between the flange 2 3 and the ball valve body 1, the assembly mechanism comprises a threaded head 7, the threaded head 7 is integrally formed at the left end of the ball valve body 1, a plurality of clamping claws 8 are arranged at an equal arc at one end of the threaded head 7 away from the ball valve body 1, the thread groove on the outer wall of the threaded head 7 extends to the outer wall of the clamping claw 8, a nut sleeve 9 is connected to the external thread of the threaded head 7, the assembly mechanism also comprises a plug 10, the plug 10 is connected to the end of the flange 2 3 close to the threaded head 7, a slot 11 is opened in the middle of the threaded head 7, the plug 10 is movably sleeved with the slot 11, a plurality of clamping seats 12 are arranged at an equal arc at the right outer wall of the plug 10, the clamping seat 12 matches the clamping claw 8, and a sealing ring is arranged at the connection between the plug 10 and the slot 11;

[0025] In this embodiment, the connection between the ball valve body 1 and the flange 2 3 is achieved by using a plug 10 in cooperation with the threaded head 7, a clamping structure of the clamping jaws 8 and the holder 12, and a nut sleeve 9 to tighten the clamping jaws 8. This enables quick and convenient assembly without the need for complicated drilling and a large number of bolt installation operations, effectively solving the problem of cumbersome and inefficient assembly of traditional ball valves.

[0026] like Figure 3 As shown, a top sleeve 4 is arranged in the middle of the top of the ball valve body 1, a valve stem 5 is movably arranged inside the top sleeve 4, a handle 6 is arranged at the top of the valve stem 5, a valve core is arranged at the lower end of the valve stem 5 inside the ball valve body 1, a positioning mechanism is arranged between the top sleeve 4 and the valve stem 5, the positioning mechanism includes a movable disk 13, a movable disk 13 is arranged at the middle outer wall of the valve stem 5, a plurality of positioning holes 14 are arranged at equal arcs outside the movable disk 13, the movable disk 13 is movably connected with the inside of the top sleeve 4, the positioning mechanism also includes a sleeve 15, the sleeve 15 is connected to the right side of the middle of the top sleeve 4, a pull rod 16 is movably sleeved in the middle of the sleeve 15, a retaining ring 17 is arranged in the middle of the pull rod 16, and a spring 18 is arranged between the retaining ring 17 and the right side of the sleeve 15 and outside the pull rod 16;

[0027] In this embodiment, by setting up a positioning mechanism, utilizing the movable disk 13, the positioning hole 14 and the pull rod 16 structure with a spring 18, reliable locking can be achieved after the valve core angle is adjusted, avoiding the problem of valve core displacement due to fluid impact, and improving the stability and reliability of the ball valve.

[0028] Working principle: During assembly, flange 2 3 is installed at the end of the ball valve body 1 away from flange 1 2. During installation, insert the insert pipe 10 into the slot 11, and then rotate the insert pipe 10 so that the holder 12 corresponds to the clamping jaw 8, then twist the nut sleeve 9, the nut sleeve 9 is rotated along the threaded head 7 to the clamping jaw 8, and then the clamping jaw 8 is tightened inward, and the holder 12 is clamped by the clamping jaw 8, which is convenient for quick assembly; the angle of the valve core can be locked after adjusting the angle of the valve core by the handle 6. During adjustment, shake the handle 6 and pull the pull rod 16, the handle 6 drives the valve stem 5 to rotate, and the valve stem 5 rotates and drives the valve core inside the ball valve body 1 to rotate. The valve stem 5 rotates and drives the movable disk 13 to move synchronously. The movable disk 13 moves and drives the positioning hole 14 to adjust the angle, and then release the pull rod 16. The spring 18 in the compressed state drives the end of the pull rod 16 to insert into the positioning hole 14 at the current position and lock it, so that the valve core will not be displaced due to the impact of the fluid after the angle adjustment is completed.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A ball valve that is easy to assemble, characterized in that: The invention comprises a ball valve body (1), a flange 1 (2) is fixedly connected to the right end of the ball valve body (1), a flange 2 (3) is movably arranged at the left end of the ball valve body (1), and an assembly mechanism is arranged between the flange 2 (3) and the ball valve body (1); a top sleeve (4) is arranged at the middle of the top end of the ball valve body (1), a valve stem (5) is movably arranged inside the top sleeve (4), a handle (6) is arranged at the top end of the valve stem (5), a valve core is arranged at the lower end of the valve stem (5) inside the ball valve body (1), and a positioning mechanism is arranged between the top sleeve (4) and the valve stem (5).

2. A ball valve that is easy to assemble according to claim 1, characterized in that: The assembly mechanism comprises a threaded head (7), the threaded head (7) being integrally formed at the left end of the ball valve body (1), a plurality of clamping claws (8) being provided with equal arcs at one end of the threaded head (7) away from the ball valve body (1), the thread groove on the outer wall surface of the threaded head (7) extending to the outer wall of the clamping claw (8), and the outer thread of the threaded head (7) being connected to a nut sleeve (9).

3. A ball valve that is easy to assemble according to claim 2, characterized in that: The assembly mechanism further comprises a plug (10), the plug (10) is connected to one end of the flange (3) close to the threaded head (7), a slot (11) is provided in the middle of the threaded head (7), the plug (10) is movably connected to the slot (11), and a plurality of clamping seats (12) are provided at equal arcs on the right outer wall of the plug (10), and the clamping seats (12) match the clamping claw (8).

4. A ball valve that is easy to assemble according to claim 3, characterized in that: A sealing ring is provided at the connection between the insertion tube (10) and the insertion slot (11).

5. The ball valve that is easy to assemble according to claim 1 is characterized in that: The positioning mechanism comprises a movable disk (13), which is arranged on the middle outer wall of the valve stem (5), and a plurality of positioning holes (14) are arranged at equal arcs on the outside of the movable disk (13), and the movable disk (13) is movably connected to the inside of the top sleeve (4).

6. A ball valve that is easy to assemble according to claim 5, characterized in that: The positioning mechanism further comprises a sleeve (15), the sleeve (15) is connected to the right side of the middle of the top sleeve (4), a pull rod (16) is movably sleeved in the middle of the sleeve (15), a retaining ring (17) is arranged in the middle of the pull rod (16), and a spring (18) is arranged between the retaining ring (17) and the right side of the sleeve (15) and outside the pull rod (16).

Images