Double-eccentric semi-ball valve with automatic adjusting function

Abstract

The utility model discloses a double-eccentric semi-ball valve with an automatic adjusting function, and particularly relates to the technical field of double-eccentric semi-ball valves, which comprises a valve body, a water inlet is fixedly connected to the left end of the valve body, a water pumping port is fixedly connected to the right end of the valve body, and a valve seat is fixedly connected to the left side of the inner surface of the water pumping port. An auxiliary assembly is arranged in the middle of the lower side of the inner surface of the valve body, a connecting assembly is arranged on the upper side of the valve body, a mounting assembly is arranged on the upper side of the connecting assembly, and an adjusting assembly is arranged on the upper side of the mounting assembly. According to the double-eccentric semi-ball valve with the automatic adjusting function, the connecting assembly and the installing assembly are arranged, so that the connecting assembly and the installing assembly are convenient to assemble and disassemble, the installing assembly and the adjusting assembly are convenient to assemble and disassemble, and the assembling and disassembling processes are simple and convenient; convenience is provided for workers to assemble and maintain the device; and an auxiliary assembly is arranged, so that the ball body does not make direct contact with the inner wall of the valve body.

Description

TECHNICAL FIELD

[0001] The utility model relates to double eccentricity half ball valve technical field, especially in double eccentricity half ball valve with automatic adjusting function. BACKGROUND

[0002] Double eccentricity half ball valve is a kind of high-performance valve product, with simple structure, compact and reliable, easy operation, wear resistance corrosion resistance and energy saving and consumption reduction etc., has been widely used in various industrial fields and plays an important role.

[0003] Double eccentricity half ball valve is especially suitable for steel industry, aluminum industry, fiber, small solid particles, paper pulp, coal ash, petroleum gas and other media;Due to its wear resistance, anti-scar, high temperature resistance, corrosion resistance and other characteristics, double eccentricity half ball valve is widely used in petrochemical industry, coal chemical industry, nonferrous metallurgy, thermal power and hydropower, heating and other industries.

[0004] The existing double eccentricity half ball valve, due to the serious wear between the half ball valve bottom cover and shaft, valve body and shaft, and the large valve opening and closing torque, the ball body will sag after long-term use, resulting in the increase of the gap between the shaft and the ball body, and the valve leakage. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of double eccentricity half ball valves with automatic adjusting function, can effectively solve the problem of serious wear between the bottom cover and shaft in double eccentricity half ball valve, valve leakage is prone to appear for long time.

[0006] To achieve the above object, the technical scheme adopted by the utility model is as follows:

[0007] A kind of double eccentricity half ball valve with automatic adjusting function, including valve body, the left end of the valve body is fixedly connected with inlet, the right end of the valve body is fixedly connected with water outlet, the left side of the inner surface of the water outlet is fixedly connected with valve seat, the lower middle part of the inner surface of the valve body is provided with auxiliary assembly, the upper side of the valve body is provided with connecting assembly, the upper side of the connecting assembly is provided with mounting assembly, the upper side of the mounting assembly is provided with adjusting assembly.

[0008] Preferably, the connecting assembly includes a connecting pipe one, the connecting pipe one is fixedly connected with the upper middle part of the outer surface of the valve body and penetrates, and a circular hole one is formed in the upper end of the connecting pipe one.

[0009] Preferably, the mounting assembly includes a connecting pipe two, the connecting pipe two is movably installed with the connecting pipe one, a circular hole two is formed in the lower end of the connecting pipe two, and the inner surfaces of the circular hole one and the circular hole two on the same side are threadedly connected with a bolt one.

[0010] Preferably, the adjusting assembly comprises a fixed shell, the outer surface of the connecting pipe is screwed to the inner surface of the lower side of the fixed shell, and the inner cavity of the fixed shell is provided with a rotating assembly.

[0011] Preferably, the rotating assembly comprises a valve rod, a fixed base is rotatably connected to the upper side of the outer surface of the valve rod, the fixed base is fixedly connected to the inner surface of the lower side of the fixed shell, a worm wheel is fixedly connected to the upper side of the outer surface of the valve rod, a servo motor is fixedly connected to the middle of the right end of the fixed shell, a worm is fixedly connected to the output end of the servo motor through a shaft coupling, the left end of the worm extends into the fixed shell through the right end of the fixed shell, the worm is engaged with the turbine, and a ball is fixedly connected to the lower end of the valve rod.

[0012] Preferably, the cover assembly comprises a shielding plate, the shielding plate is movably mounted on the fixed shell, three circular holes are formed in the upper end of the shielding plate, and the inner surface of each of the three circular holes is screwed with a bolt.

[0013] Preferably, the auxiliary assembly comprises a connecting block, the connecting block is fixedly connected to the lower side of the outer surface of the ball, and a cylinder is rotatably connected to the inner surface of the connecting block.

[0014] Compared with the prior art, the utility model has the advantages of the following beneficial effects:

[0015] 1、The connecting assembly and the mounting assembly are convenient to install and disassemble, the mounting assembly and the adjusting assembly are convenient to install and disassemble, the mounting and dismounting process is simple and convenient, the staff is facilitated to assemble and maintain the device, the ball does not directly contact the inner wall of the valve body, the friction between the ball and the inner wall of the valve body is effectively reduced during the rotation of the ball, the abrasion of the ball is reduced, and the service life of the ball is prolonged.

[0016] 2、The servo motor, the turbine and the worm are arranged, the number of rotation circles of the worm can be controlled by the servo motor, the number of rotation circles of the turbine is controlled, the number of rotation circles of the valve rod is controlled, the rotation angle of the ball is controlled, the size of the gap between the ball and the water inlet and the water outlet can be controlled, the flow rate of the flow medium flowing out of the water outlet can be controlled, the turbine and the worm are in the engaged state, the turbine cannot drive the worm to rotate after the turbine drives the worm to rotate for a certain number of rotation circles, and the stability of the ball after rotating for a certain angle is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure appearance schematic view of the utility model;

[0018] Figure 2 It is the whole structure section view schematic diagram of the utility model;

[0019] Figure 3 It is the local structure schematic diagram of the utility model;

[0020] Figure 4 It is the local assembly structure explosion schematic diagram of the utility model;

[0021] Figure 5 It is the rotation assembly structure schematic diagram of the utility model;

[0022] Figure 6 It is the cover assembly structure schematic diagram of the utility model;

[0023] Figure 7 It is the auxiliary assembly structure schematic diagram of the utility model.

[0024] In the drawing: 1, water inlet;2, valve body;3, water outlet;4, valve seat;5, auxiliary assembly;51, connecting block;52, cylinder;6, connecting assembly;61, connecting pipe one;62, round hole one;7, installation assembly;71, connecting pipe two;72, round hole two;73, bolt one;8, adjusting assembly;81, fixed shell;82, rotation assembly;821, servo motor;822, worm;823, turbine;824, fixed base;825, valve stem;826, ball;83, cover assembly;831, shielding plate;833, bolt two;832, round hole three. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0026] As Figure 1 And Figure 2 Shown, a double eccentricity half ball valve with automatic adjusting function, including valve body 2, the left end of valve body 2 is fixedly connected with water inlet 1, the right end of valve body 2 is fixedly connected with water outlet 3, the inner surface left side of water outlet 3 is fixedly connected with valve seat 4, the inner surface lower side middle part of valve body 2 is provided with auxiliary assembly 5, the upper side of valve body 2 is provided with connecting assembly 6, the upper side of connecting assembly 6 is provided with installation assembly 7, the upper side of installation assembly 7 is provided with adjusting assembly 8.

[0027] In specific implementation, connecting assembly 6 and installation assembly 7 are movably installed, installation assembly 7 and adjusting assembly 8 are movably installed, so that the installation and disassembly maintenance work of the device is facilitated;

[0028] The existence of the auxiliary assembly 5 makes the components in the adjusting assembly 8 in the valve body 2 not directly contact with the inner wall of the valve body 2, thereby reducing the abrasion between the components of the adjusting assembly 8 and the inner wall of the valve body 2;

[0029] The existence of the adjusting assembly 8 can control the size of the gap of the water inlet 1 and the water outlet 3, thereby controlling the flow size of the flowing medium entering the valve body 2 through the water inlet 1 and the flowing medium going out of the valve body 2 through the water outlet 3.

[0030] Specifically, in order to reduce the friction between the ball 826 and the valve body 2, thereby prolonging the service life of the valve, referring to Figure 3 and Figure 4 The connecting assembly 6 comprises a connecting pipe one 61, the connecting pipe one 61 is fixedly connected with the upper middle part of the outer surface of the valve body 2 and penetrates through, and a circular hole one 62 is arranged at the upper end of the connecting pipe one 61.

[0031] Further referring to Figure 3 and Figure 4 The mounting assembly 7 comprises a connecting pipe two 71, the connecting pipe two 71 is movably mounted with the connecting pipe one 61, a circular hole two 72 is arranged at the lower end of the connecting pipe two 71, and the inner surfaces of the same side circular hole one 62 and the circular hole two 72 are threadedly connected with a bolt one 73.

[0032] Further referring to Figure 3 The adjusting assembly 8 comprises a fixed shell 81, the outer surface of the upper side of the connecting pipe two 71 is threadedly connected with the inner surface of the lower side of the fixed shell 81, the inner cavity of the fixed shell 81 is provided with a rotating assembly 82, and the upper end of the fixed shell 81 is provided with a cover assembly 83.

[0033] Further referring to Figure 5 The rotating assembly 82 comprises a valve rod 825, the outer surface of the upper side of the valve rod 825 is rotatably connected with a fixed base 824, the fixed base 824 is fixedly connected with the inner surface of the lower side of the fixed shell 81, the outer surface of the upper side of the valve rod 825 is fixedly connected with a turbine 823, the right end of the fixed shell 81 is fixedly connected with a servo motor 821, the output end of the servo motor 821 is fixedly connected with a worm 822 through a shaft coupling, the left end of the worm 822 penetrates through the right end of the fixed shell 81 and extends into the fixed shell 81, the worm 822 is engaged with the turbine 823, and the lower end of the valve rod 825 is fixedly connected with a ball 826.

[0034] Further referring to Figure 6 The cover assembly 83 comprises a shielding plate 831, the shielding plate 831 is movably mounted with the fixed shell 81, a circular hole three 832 is arranged at the upper end of the shielding plate 831, and the inner surfaces of the four circular hole threes 832 are threadedly connected with a bolt two 833.

[0035] Further referring to Figure 7The auxiliary assembly 5 comprises a connecting block 51 fixedly connected with the lower side of the outer surface of the ball 826, and a cylinder 52 rotatably connected with the inner surface of the lower middle part of the valve body 2.

[0036] The above-mentioned servo motor 821 can be opened and rotated in a remote control mode through PLC, and the number of rotations can be indirectly controlled by controlling the number of pulses, which is a mature technical means in the prior art. The present scheme only uses the functions of controlling the rotation speed, the number of rotations and the forward and reverse rotation of the object. The structure and working principle will not be described here.

[0037] In the specific implementation, in the normal state, the ball 826 is in the valve body 2, at this time, the ball 826 does not directly contact with the inner wall of the valve body 2, so that the friction between the ball 826 and the inner wall of the valve body 2 can be effectively reduced during the rotation of the ball 826.

[0038] The connecting pipe one 61 and the connecting pipe two 71 are fixedly installed together through four bolts one 73, and the connecting pipe two 71 is threadedly connected with the fixed shell 81, so that the connecting pipe two 71 and the connecting pipe one 61, and the connecting pipe two 71 and the fixed shell 81 can be quickly installed and disassembled. These designs make the device can quickly complete the assembly and disassembly work, and provide convenience for the assembly and disassembly work of the workers.

[0039] The shielding plate 831 and the fixed shell 81 are fixedly installed together through four bolts two 833, so that the shielding plate 831 will form a cover on the upper side of the fixed shell 81. The shielding plate 831 can be removed by removing the four bolts two 833. This process is simple and convenient, and provides convenience for the process of removing the shielding plate 831 by the maintenance personnel to check the state of the rotating assembly 82.

[0040] The opening servo motor 821 drives the worm 822 to rotate, thereby driving the turbine 823 to rotate, thereby driving the valve rod 825 to rotate, thereby driving the ball 826 and the cylinder 52 to rotate, so that the ball 826 changes from the state of shielding and closing the water inlet 1 and the water outlet 3 to the state of the opening part facing the water inlet 1 and the water outlet 3. In this way, the device is in an open state, and the flowing medium can enter the valve body 2 from the water inlet 1, and enter the water outlet 3 from the opening position of the ball 826 and flow out.

[0041] The servo motor 821 can control the number of rotations of the worm 822, thereby controlling the number of rotations of the worm wheel 823, thereby controlling the number of rotations of the valve rod 825, thereby controlling the rotation angle of the ball 826, so that the size of the gap of the opening part of the ball 826 facing the water inlet 1 and the water outlet 3 can be controlled, thereby controlling the flow rate of the flowing medium flowing out of the water outlet 3.

[0042] The ball 826 in the valve body 2 can rotate in the valve body 2 around the valve rod 825 by rotating the valve rod 825 through the turbine 823, the valve seat 4 is arranged on the inner surface of the water outlet 3 at one end of the ball 826, and the valve seat 4 is matched with the ball 826, so that the flow rate of the fluid can be controlled;

[0043] The turbine 823 is rotated by the worm 822 and the turbine 823, so that the stability of the turbine 823 is improved when rotating, and the turbine 823 cannot drive the worm 822 to rotate after the worm 822 drives the turbine 823 to rotate for a certain number of turns, so that the stability of the ball 826 is further ensured after rotating for a certain angle;

[0044] Meanwhile, the rotation center of the ball 826 is different from the rotation axis of the valve rod 825, so that the friction is reduced and the service life of the ball 826 is prolonged;

[0045] Meanwhile, the ball 826 has a cutting function, when being closed, the ball 826 can cut off the sundries, branches, textile bags and the like of the valve body 2, so that the device can be normally opened and closed, the ball 826 and the valve seat 4 are not in contact, the friction and scratches between the ball 826 and the valve seat 4 are effectively eliminated, the problem that the traditional ball, the valve seat and the sealing surface of the valve body are always worn is overcome, and the service life of the device is improved.

[0046] It should be particularly pointed out that the specific installation mode of the servo motor 821, the connection mode of the circuit and the control method in the utility model all belong to conventional design, and the utility model will not be described in detail.

[0047] The working principle of the utility model is as follows:

[0048] The connecting pipe one 61 and the connecting pipe two 71 are fixedly installed together through four bolts one 73, the connecting pipe two 71 and the fixed shell 81 are threadedly connected, so that the connecting pipe two 71 and the connecting pipe one 61 and the connecting pipe two 71 and the fixed shell 81 can be quickly installed and disassembled;

[0049] The shielding plate 831 and the fixed shell 81 are fixedly installed together through four bolts two 833, at this time, the shielding plate 831 forms a cover on the upper side of the fixed shell 81, and the shielding plate 831 can be taken down by taking down the four bolts two 833;

[0050] The servo motor 821 is started to drive the worm 822 to rotate, thereby driving the turbine 823 to rotate, thereby driving the valve rod 825 to rotate, thereby driving the ball 826 and the cylinder 52 to rotate, so that the ball 826 is changed from the state of shielding and closing the water inlet 1 and the water outlet 3 to the state of the opening part being directed to the water inlet 1 and the water outlet 3, so that the device is in the open state, and the flowing medium can enter the valve body 2 from the water inlet 1, and enter the water outlet 3 from the opening position of the ball 826 and flow out.

[0051] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. The skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, and various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A double eccentric hemispherical valve with automatic adjustment function, comprising a valve body (2), characterized in that: The left end of the valve body (2) is fixedly connected to a water inlet (1), the right end of the valve body (2) is fixedly connected to a water pumping port (3), the left side of the inner surface of the water pumping port (3) is fixedly connected to a valve seat (4), an auxiliary component (5) is provided in the middle of the lower side of the inner surface of the valve body (2), a connecting component (6) is provided on the upper side of the valve body (2), an installation component (7) is provided on the upper side of the connecting component (6), and an adjustment component (8) is provided on the upper side of the installation component (7).

2. A double eccentric hemispherical valve with automatic adjustment function according to claim 1, characterized in that: The connecting assembly (6) includes a connecting pipe (61) which is fixedly connected to and passes through the middle portion of the upper side of the outer surface of the valve body (2). Circular holes (62) are provided at the four corners of the upper end of the connecting pipe (61).

3. The double eccentric hemispherical valve with automatic adjustment function according to claim 2, characterized in that: The mounting assembly (7) includes a second connecting pipe (71), which is movably mounted on the first connecting pipe (61). The four corners of the lower end of the second connecting pipe (71) are each provided with a second circular hole (72), and the inner surfaces of the first circular hole (62) and the second circular hole (72) on the same side are both threadedly connected with a bolt (73).

4. The double eccentric hemispherical valve with automatic adjustment function according to claim 3, characterized in that: The adjusting assembly (8) includes a fixed shell (81), the upper side of the outer surface of the second connecting pipe (71) is threadedly connected to the lower inner surface of the fixed shell (81), the inner cavity of the fixed shell (81) is provided with a rotating assembly (82), and the upper end of the fixed shell (81) is provided with a sealing assembly (83).

5. The double eccentric hemispherical valve with automatic adjustment function according to claim 4, characterized in that: The rotating assembly (82) includes a valve stem (825), the upper side of the outer surface of the valve stem (825) is rotatably connected to a fixed base 8 (24), the fixed base (824) is fixedly connected to the lower side of the inner surface of the fixed shell (81), the upper side of the outer surface of the valve stem (825) is fixedly connected to a worm gear (823), the middle part of the right end of the fixed shell (81) is fixedly connected to a servo motor (821), the output end of the servo motor (821) is fixedly connected to a worm (822) through a coupling, the left end of the worm (822) passes through the right end of the fixed shell (81) and extends into the fixed shell (81), the worm (822) is meshed with the worm gear (823), and the lower end of the valve stem (825) is fixedly connected to a ball (826).

6. The double eccentric hemispherical valve with automatic adjustment function according to claim 5, characterized in that: The cover assembly (83) includes a shielding plate (831), which is movably mounted on the fixed housing (81). The four corners of the upper end of the shielding plate (831) are each provided with a circular hole three (832), and the inner surfaces of the four circular holes three (832) are each threadedly connected with a bolt two (833).

7. The double eccentric hemispherical valve with automatic adjustment function according to claim 6, characterized in that: The auxiliary component (5) includes a connecting block (51), the connecting block (51) is fixedly connected to the lower side of the outer surface of the sphere (826), the inner surface of the connecting block (51) is rotatably connected to a cylinder (52), and the cylinder (52) is fixedly connected to the middle part of the lower side of the inner surface of the valve body (2).

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