CN210266013U - Wear-resistant external thread three-way ball valve - Google Patents

Abstract

The utility model discloses a stand wear and tear external screw thread tee bend ball valve, comprises a valve seat, the disk seat is equipped with the pipeline that three surface is equipped with the external screw thread, the inside flowing chamber that is equipped with of disk seat, the disk seat upper end is equipped with the valve gap, the valve gap passes through bolt and disk seat fixed connection, the valve gap upper end is equipped with the handle, handle fixedly connected with valve rod, the valve rod lower extreme runs through the disk seat and establishes the spherical case fixed connection in the inside center department of disk seat, spherical case and disk seat sliding connection, the disk seat is equipped with steel ball, sealing washer and elastic component with spherical case junction. The elastic part which is arranged at the joint of the sealing ring and the valve core and consists of the hydraulic cylinder, the sliding plug, the plug rod, the throttling hole, the damping liquid and the spring is used for extruding the sealing ring, the pressure is greatly relieved for the sealing ring between the ball body and the valve seat, the sealing ring is not easy to wear when sealing work is carried out, the damage rate of the ball valve is reduced, the quality of the ball valve is improved, and the practicability is greatly enhanced.

Description

Wear-resistant external thread three-way ball valve

Technical Field

The utility model relates to the technical field of valves, especially, relate to a stand wear and tear external screw thread tee bend ball valve.

Background

The main functions of a ball valve are to cut off or open the medium in the line and to regulate and control the flow of fluid in the line. The ball valve has the working principle that a certain torque is applied to the upper end of the valve rod by a driving device and is transmitted to the ball body, so that the ball body rotates 90 degrees to complete the action of opening or closing the valve. The three-way ball valve is used as one type of ball valve, and is widely applied to various industries due to the advantages of compact structure, reliable sealing, convenient maintenance and the like. Three-way ball valve's among the tradition case is through the sealing washer effect of sealing, but under the long-term use of ball valve, the case is more with the friction number of times of sealing washer for the sealing washer takes place wearing and tearing, and the sealed effect variation of ball valve leads to the maintenance rate height of ball valve, the quality subalternation problem. In order to solve the problems, a wear-resistant external thread three-way ball valve needs to be provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the long-term use of ball valve among the conventional art under, the friction number of times of case and sealing washer is more for the sealing washer takes place wearing and tearing, and the sealed effect variation of ball valve leads to the maintenance rate of ball valve high, the poor problem of quality, and the wear and tear outer screw thread tee bend ball valve that wear and tear that proposes.

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

the utility model provides a stand wear and tear external screw thread tee bend ball valve, includes the disk seat, the disk seat is equipped with the pipeline that three surface is equipped with the external screw thread, the inside chamber that flows that is equipped with of disk seat, the disk seat upper end is equipped with the valve gap, the valve gap passes through bolt and disk seat fixed connection, the valve gap upper end is equipped with the handle, handle fixedly connected with valve rod, the valve rod lower extreme runs through the disk seat and establishes the spherical case fixed connection at the inside center department of disk seat, spherical case and disk seat sliding connection, the disk seat is equipped with a plurality of steel balls with spherical case junction, disk seat, spherical case junction are equipped with a plurality of half slots that hold the steel ball, be equipped with the recess in the disk seat, be equipped with sealing washer and.

Preferably, a sleeve is arranged on the outer side of the valve rod and fixedly connected with the valve cover, and the sleeve is rotatably connected with the valve rod.

Preferably, the upper end of the sleeve is provided with a bearing, the bearing is rotatably connected with the valve rod, and the bearing is fixedly connected with the valve cover.

Preferably, the elastic element comprises a hydraulic cylinder, a sliding plug, a plug rod, a throttling hole, damping liquid and a spring, the hydraulic cylinder is arranged in the groove and fixedly connected with the groove, and the sliding plug is connected in the hydraulic cylinder in a sliding mode.

Preferably, a plurality of orifices are arranged on the sliding plug, a plug rod is fixedly connected to one side of the sliding plug, and the other end of the plug rod penetrates through the hydraulic cylinder and is fixedly connected with the sealing ring.

Preferably, the other side of the sliding plug is fixedly connected with a spring, the other end of the spring is fixedly connected with the inner wall of the hydraulic cylinder, and damping liquid is arranged inside the hydraulic cylinder.

Compared with the prior art, the utility model discloses possess following advantage:

1. the sealing ring sealing device has the advantages that the elastic part consisting of the hydraulic cylinder, the sliding plug, the plug rod, the throttling hole, the damping liquid and the spring is arranged at the joint of the sealing ring and the valve core to act on the sealing ring, pressure is greatly relieved for the sealing ring between the valve core and the valve seat, the sealing ring is not prone to abrasion during sealing work, the damage rate of the ball valve is reduced, the quality of the ball valve is improved, the practicability is greatly enhanced, the long-term use of the ball valve is effectively achieved, the friction times of the valve core and the sealing ring are more, the sealing ring is made to be abraded, the sealing effect of the ball valve is poor, the maintenance rate of the ball valve is high.

2. The connecting part of the spherical valve core and the valve seat is provided with a plurality of steel balls, so that the sliding effect of the valve core and the valve seat is improved, and the valve rod can rotate by using lower torque during the operation of the ball valve.

Drawings

Fig. 1 is a schematic structural view of a wear-resistant external thread three-way ball valve provided by the present invention;

fig. 2 is the utility model provides a local enlarger is connected with the sealing washer to an elastic component of stand wear and tear external screw thread tee bend ball valve.

In the figure: 1 valve seat, 2 valve covers, 3 bolts, 4 handles, 5 valve rods, 6 spherical valve cores, 7 steel balls, 8 semicircular grooves, 9 elastic parts, 91 hydraulic cylinders, 92 sliding plugs, 93 plug rods, 94 throttling holes, 95 damping fluid, 96 springs, 10 sealing rings, 11 grooves, 12 bearings, 13 sleeves and 14 flow cavities.

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.

Referring to fig. 1 to 2, a wear-resistant external thread three-way ball valve comprises a valve seat 1, wherein the valve seat 1 is provided with three pipelines with external threads on the outer surfaces, a flow cavity 14 is arranged inside the valve seat 1, a transmission medium flows in the flow cavity 14, the upper end of the valve seat 1 is provided with a valve cover 2, the valve cover 2 is fixedly connected with the valve seat 1 through a bolt 3, the upper end of the valve cover 2 is provided with a handle 4, the middle of the handle 4 is fixedly connected with a valve rod 5, the lower end of the valve rod 5 penetrates through the valve seat 1, the valve cover 2 is fixedly connected with a spherical valve core 6 arranged at the center inside of the valve seat 1, a circular inner cavity for accommodating the spherical valve core 6 is arranged inside the valve seat 1, the spherical valve core 6 is slidably connected with the valve seat 1, the joint of the valve seat 1 and the spherical valve core 6 is provided with five steel balls 7, the sealing ring 10 is tightly attached to the spherical valve core 6 under the action of the elastic part 9;

referring to fig. 1, a sleeve 13 is arranged on the outer side of a valve rod 5, the sleeve 13 is fixedly connected with a valve cover 2, and the sleeve 13 is rotatably connected with the valve rod 5, so that the valve rod 5 can rotate in the valve cover 2 more easily, and the friction loss of the valve rod 5 is reduced;

referring to fig. 1, a bearing 12 is arranged at the upper end of a sleeve 13, the bearing 12 is rotatably connected with a valve rod 5, and the bearing 12 is fixedly connected with a valve cover 2, so that the valve rod 5 can rotate in the valve cover 2 more easily;

referring to fig. 2, the elastic element 9 is composed of a hydraulic cylinder 91, a sliding plug 92, a plug rod 93, an orifice 94, a damping fluid 95 and a spring 96, the hydraulic cylinder 91 is arranged in the groove 11 and fixedly connected with the groove, and the sliding plug 92 is slidably connected with the hydraulic cylinder 91;

referring to fig. 2, a plurality of orifices 94 are arranged on the sliding plug 92, a plug rod 93 is fixedly connected to one side of the sliding plug 92, and the other end of the plug rod 93 penetrates through the hydraulic cylinder 91 and is fixedly connected with the sealing ring 10;

referring to fig. 2, the other side of the sliding plug 92 is fixedly connected with a spring 96, the other end of the spring 96 is fixedly connected with the inner wall of the hydraulic cylinder 91, damping fluid 95 is arranged inside the hydraulic cylinder 91, the damping fluid 95 is silicon oil, the damping fluid 95 has the function of attenuating kinetic energy of the moving machine by means of viscous resistance of a liquid medium, oily liquid capable of shortening the swinging or moving time of the machine can be used, and the shock impact received by the sealing ring 10 can be absorbed.

Now, the operation principle of the present invention is described as follows:

when the utility model is used, the handle 4 is rotated to rotate the valve rod 5, the lower end of the valve rod 5 is fixedly connected with the spherical valve core 6, therefore, the spherical valve core rotates in the valve seat 1 to perform functions such as shunt regulation, in the rotating process of the spherical valve core 6, six steel balls are arranged at the joint of the spherical valve core 6 and the valve seat 1, the valve rod 5 can be rotated by using lower torque, the elastic part 9 consisting of the hydraulic cylinder 91, the sliding plug 92, the plug rod 93, the orifice 94, the damping liquid 95 and the spring 96 is arranged at the joint of the sealing ring 10 and the spherical valve core 6 to act on the sealing ring 10, the pressure is greatly relieved for the sealing ring 10 between the spherical valve core 6 and the valve seat 1, the sealing ring 10 is not easy to wear when sealing work is carried out, and when the spherical valve core 6 receives the impact of a transmission medium, the impact received by the spherical valve core, the seal ring 10 is fixedly connected with the plug rod 93, the impact action of the plug rod 93 is transferred to the sliding of the sliding plug 92 in the hydraulic cylinder 91, so that the damping fluid 95 in the hydraulic cylinder 91 flows in the orifice 94 on the sliding plug 92, and the damping force generated by the flow of the damping fluid 95 in the orifice 94 absorbs the shock impact.

In the present invention, unless otherwise expressly stated or limited, the terms "sliding", "rotating", "fixed", "provided", and the like are to be understood in a broad sense, e.g. as welded connections, as bolted connections, or as integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

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 wear-resistant external thread three-way ball valve comprises a valve seat (1), wherein the valve seat (1) is provided with a pipeline with three external threads on the outer surface, and the wear-resistant external thread three-way ball valve is characterized in that a flow cavity (14) is arranged inside the valve seat (1), a valve cover (2) is arranged at the upper end of the valve seat (1), the valve cover (2) is fixedly connected with the valve seat (1) through a bolt (3), a handle (4) is arranged at the upper end of the valve cover (2), a valve rod (5) is fixedly connected with the handle (4), the lower end of the valve rod (5) penetrates through the valve seat (1) and is fixedly connected with a spherical valve core (6) arranged at the center inside of the valve seat (1), the spherical valve core (6) is slidably connected with the valve seat (1), a plurality of steel balls (7) are arranged at the joint of the valve seat (1) and the spherical valve core (6), a plurality, a groove (11) is formed in the valve seat (1), a sealing ring (10) and an elastic piece (9) are arranged in the groove (11), and the sealing ring (10) is tightly attached to the spherical valve core (6) under the action of the elastic piece (9).

2. A wear-resistant external thread three-way ball valve according to claim 1, wherein a sleeve (13) is arranged outside the valve rod (5), the sleeve (13) is fixedly connected with the valve cover (2), and the sleeve (13) is rotatably connected with the valve rod (5).

3. A wear-resistant three-way ball valve with an external thread as claimed in claim 2, wherein the sleeve (13) is provided with a bearing (12) at the upper end thereof, the bearing (12) is rotatably connected with the valve rod (5), and the bearing (12) is fixedly connected with the valve cover (2).

4. A wear-resistant three-way ball valve with external threads as claimed in claim 1, wherein the elastic member (9) comprises a hydraulic cylinder (91), a sliding plug (92), a plug rod (93), a throttle hole (94), a damping fluid (95) and a spring (96), the hydraulic cylinder (91) is arranged in the groove (11) and fixedly connected with the groove, and the sliding plug (92) is slidably connected with the hydraulic cylinder (91).

5. The wear-resistant external thread three-way ball valve as claimed in claim 4, wherein a plurality of orifices (94) are arranged on the sliding plug (92), a plug rod (93) is fixedly connected to one side of the sliding plug (92), and the other end of the plug rod (93) penetrates through the hydraulic cylinder (91) and is fixedly connected with the sealing ring (10).

6. The wear-resistant external thread three-way ball valve as claimed in claim 5, wherein a spring (96) is fixedly connected to the other side of the sliding plug (92), the other end of the spring (96) is fixedly connected with the inner wall of the hydraulic cylinder (91), and damping fluid (95) is arranged inside the hydraulic cylinder (91).

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