Discharge type all-welded ball valve

Abstract

The utility model provides a relief type all-welded ball valve, which belongs to the technical field of relief type all-welded ball valves, and comprises a valve body, a first-order connecting pipe and a second-order connecting pipe, the valve body is spherical, a main ball valve is rotatably connected in the valve body, the main ball valve is in a through ball shape, and the first-order connecting pipe is connected with the second-order connecting pipe. The upper end of the main ball valve is fixedly connected with a valve rod, the valve rod penetrates through and is rotationally connected to the outer side face of the valve body, a clamping and locking assembly is arranged on the valve rod, and the two first-order connecting pipes fixedly communicate with the two sides of the valve body. According to the all-welded ball valve, the cutoff ball valve is arranged in the second-order connecting pipes, when the all-welded ball valve is maintained and replaced, the second-order connecting pipes on the two sides can be sealed by the cutoff ball valve through the handle and the connecting rod, maintenance and management can be facilitated, it can be guaranteed that liquid in a pipeline cannot leak out, and meanwhile it is guaranteed that the pressure value in the pipe is stable.

Description

Technical Field

[0001] The utility model belongs to the technical field of a diffusion-type fully welded ball valve, in particular to a diffusion-type fully welded ball valve. Background Art

[0002] The fully welded ball valve is a valve made of processed materials. It controls the flow of fluid by rotating the ball. It has some good characteristics, such as good sealing, strong corrosion resistance, better controllability and easy installation and maintenance.

[0003] The existing publication number CN218935339U discloses a diffusion-type fully welded ball valve, including a valve body and a shut-off plate, a connecting column is installed in the middle of the top of the valve body, a control box is installed on the top of the connecting column, a valve core is movably installed in the middle of the valve body, a valve stem is installed on the top of the valve core located inside the connecting column, the valve stem passes through the top of the control box, a worm gear is installed on the outer surface of the valve stem near the top, a motor B is installed in the middle of one side of the control box, the output shaft of the motor B is located on the front surface of the worm gear and a worm is installed, and the worm gear is meshed with the worm gear.

[0004] The existing diffused fully welded ball valve still has the following shortcomings:

[0005] 1. The interception assembly in the existing design adopts the extraction and placement of the interception plate. When the interception plate is extracted during the interception process, the liquid in the pipeline will be extracted from the pipeline along its surface. During the extraction process, the airtightness and high pressure resistance of the fully welded ball valve cannot be guaranteed. On the other hand, the liquid taken out will also cause pollution and corrosion to the outside of the pipeline.

[0006] 2. In order to reduce the wear of the valve stem in the existing design, a locking assembly is designed to ensure the stability of the valve stem and the locking plate. This design adopts the method of clamping by applying pressure from top to bottom to ensure the stability of the locking plate. However, excessive pressure during use will cause wear on the surface of the locking plate, and after wear, it will also cause instability of the locking structure. Utility Model Content

[0007] The utility model aims to solve the problems of some liquid in the pipeline and unstable locking structure in the process of extracting the interruption flow plate in the prior art, and proposes a venting type fully welded ball valve.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] A diffuser fully welded ball valve comprises: a valve body, a first-order connecting pipe and a second-order connecting pipe, the valve body is set in a spherical shape, a main ball valve is rotatably connected in the valve body, the main ball valve is set in a through spherical shape, a valve stem is fixedly connected to the upper end of the main ball valve, the valve stem penetrates and is rotatably connected to the outer side of the valve body, a locking assembly is provided on the valve stem, two first-order connecting pipes are fixedly connected to the two sides of the valve body, the end of the first-order connecting pipe and the two ends of the second-order connecting pipe are fixedly connected with connecting pieces, the first-order connecting pipe and the second-order connecting pipe are threadedly connected by screws, a cut-off ball valve is rotatably connected in the second-order connecting pipe, the upper end of the cut-off ball valve is fixedly connected to a connecting rod, the connecting rod penetrates and is rotatably connected to the outer side of the second-order connecting pipe, and the upper end of the connecting rod is fixedly connected to a handle;

[0010] Preferably, the screw is threadedly connected to a connection hole on the connection piece, and the second-stage connection pipe is fixedly connected to a relief component, and the relief component is arranged on a side of the cut-off ball valve close to the main ball valve;

[0011] Preferably, the relief assembly includes a relief pipe, a relief valve, a branch pipe, a pressure gauge and a valve, the relief pipe is fixedly connected to the side of the second-order connecting pipe, the relief valve is fixedly connected to the top of the relief pipe, the branch pipe is fixedly connected to the side of the relief pipe, the pressure gauge is fixedly connected to the side of the branch pipe, and the valve is fixedly connected to the side of the second-order connecting pipe;

[0012] Preferably, the locking assembly comprises a control box, a power structure and a locking structure, the power structure comprises a locking plate, a driven bevel gear, a driving bevel gear and a No. 1 motor, the locking plate is fixedly connected to the top of the valve stem, the locking plate is set as a disc type, a spoke is arranged in the middle of the locking plate, the driven bevel gear is fixedly connected to the side of the valve stem, the driven bevel gear is arranged below the locking plate, the No. 1 motor is fixedly connected to the side of the control box, the driving bevel gear is fixedly connected to the output end of the No. 1 motor, and the driving bevel gear and the driven bevel gear are meshed with each other;

[0013] Preferably, the locking structure comprises a reciprocating screw, a No. 2 motor, a locking disk and an arc-shaped clamping piece, the No. 2 motor is fixedly connected to the inner top surface of the control box, the reciprocating screw is fixedly connected to the output end of the No. 2 motor, the locking disk is threadedly connected to the reciprocating screw, and a plurality of the arc-shaped clamping pieces are fixedly connected to the lower surface of the locking disk in a ring array;

[0014] Preferably, the lowermost end of the reciprocating screw rod is 5 cm away from the upper surface of the locking disk, and the arc-shaped clamping piece is engaged and connected between the spokes after it falls down.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] 1. The utility model sets a cut-off ball valve in the second-stage connecting pipe. When the fully welded ball valve is repaired or replaced, the cut-off ball valve can be used to close the second-stage connecting pipes on both sides through the handle and the connecting rod, which can facilitate maintenance and management, ensure that the liquid in the pipeline will not leak out, and ensure the stability of the pressure value in the pipe.

[0017] 2. The utility model arranges a locking disk and an arc-shaped clamping piece on the reciprocating screw rod, and arranges it above the locking disk. The arc-shaped clamping piece can be embedded in the locking disk through the displacement of the locking disk on the reciprocating screw rod, which can not only ensure the stability of the locking structure, but also avoid the wear of the locking disk. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a venting type fully welded ball valve proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the internal front plan view of a diffused fully welded ball valve proposed by the utility model;

[0020] Figure 3 This is an internal front view of a diffused fully welded ball valve proposed by the utility model;

[0021] Figure 4 The utility model is a schematic diagram of the internal cross-sectional structure of a diffusion-type fully welded ball valve.

[0022] In the figure: 1 valve body, 2 first-stage connecting pipe, 3 second-stage connecting pipe, 4 connecting parts, 5 screws, 6 relief pipe, 7 relief valve, 8 branch pipe, 9 pressure gauge, 10 cut-off ball valve, 11 connecting rod, 12 handle, 13 main ball valve, 14 control box, 15 valve stem, 16 locking plate, 17 driven bevel gear, 18 driving bevel gear, 19 No. 1 motor, 20 reciprocating screw rod, 21 No. 2 motor, 22 locking plate, 23 arc-shaped clamp, 24 valve. DETAILED DESCRIPTION

[0023] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] Reference Figure 1-Figure 4A diffused fully welded ball valve comprises: a valve body 1, a first-stage connecting pipe 2 and a second-stage connecting pipe. The valve body 1 is set in a spherical shape. A main ball valve 13 is rotatably connected in the valve body 1. The main ball valve 13 is set in a through spherical shape. A valve stem 15 is fixedly connected to the upper end of the main ball valve 13. The valve stem 15 penetrates and is rotatably connected to the outer side of the valve body 1. A locking assembly is provided on the valve stem 15. Two first-stage connecting pipes 2 are fixedly connected to both sides of the valve body 1. The end of the first-stage connecting pipe 2 and both ends of the second-stage connecting pipe 3 are fixedly connected with a connecting piece 4. The first-stage connecting pipe 2 and the second-stage connecting pipe 3 are screwed together by screws 5. The second-stage connecting pipe is connected by a threaded connection, and a cut-off ball valve 10 is rotatably connected in the second-stage connecting pipe. The upper end of the cut-off ball valve 10 is fixedly connected to a connecting rod 11, which penetrates and is rotatably connected to the outer side of the second-stage connecting pipe 3. The upper end of the connecting rod 11 is fixedly connected to a handle 12. By arranging the cut-off ball valve 10 in the second-stage connecting pipe 3, when the fully welded ball valve is repaired and replaced, the cut-off ball valve 10 can be used to close the second-stage connecting pipe 3 on both sides through the handle 12 and the connecting rod 11, which can facilitate maintenance and management, and ensure that the liquid in the pipeline will not leak out, while ensuring the stability of the pressure value in the pipe;

[0025] The screw 5 is threadedly connected to the connection hole on the connecting piece 4, and the second-stage connecting pipe 3 is fixedly connected with a relief component, which is arranged on one side of the cut-off ball valve 10 close to the main ball valve 13;

[0026] The relief assembly includes a relief pipe 6, a relief valve 7, a branch pipe 8, a pressure gauge 9 and a valve 24. The relief pipe 6 is fixedly connected to the side of the second-stage connecting pipe 3, the relief valve 7 is fixedly connected to the top of the relief pipe 6, the branch pipe 8 is fixedly connected to the side of the relief pipe 6, the pressure gauge 9 is fixedly connected to the side of the branch pipe 8, and the valve 24 is fixedly connected to the side of the second-stage connecting pipe 3;

[0027] The locking assembly includes a control box 14, a power structure and a locking structure. The power structure includes a locking plate 16, a driven bevel gear 17, a driving bevel gear 18 and a No. 1 motor 19. The locking plate 16 is fixedly connected to the top of the valve stem 15. The locking plate 16 is set as a disc type. Spokes are set in the middle of the locking plate 16. The driven bevel gear 17 is fixedly connected to the side of the valve stem 15. The driven bevel gear 17 is set below the locking plate 16. The No. 1 motor 19 is fixedly connected to the side of the control box 14. The driving bevel gear 18 is fixedly connected to the output end of the No. 1 motor 19. The driving bevel gear 18 and the driven bevel gear 17 are meshed with each other. The locking structure includes a reciprocating screw rod 2 0, No. 2 motor 21, locking disk 22 and arc-shaped clamping piece 23, No. 2 motor 21 is fixedly connected to the inner top surface of control box 14, reciprocating screw 20 is fixedly connected to the output end of No. 2 motor 21, locking disk 22 is threadedly connected to the reciprocating screw 20, and a plurality of arc-shaped clamping pieces 23 are fixedly connected to the lower surface of locking disk 22 in an annular array. By arranging locking disk 22 and arc-shaped clamping piece 23 on reciprocating screw 20 and arranging them above locking disk 16, arc-shaped clamping piece 23 can be embedded in locking disk 16 by displacement of locking disk 22 on reciprocating screw 20, which can ensure the stability of locking structure and avoid wear of locking disk;

[0028] The lowermost end of the reciprocating screw rod 20 is 5 cm away from the upper surface of the locking plate 16 , and the arc-shaped clamping member 23 is engaged and connected between the spokes after falling down.

[0029] The functional principle of the utility model can be explained through the following operation modes:

[0030] During use, the opening of the shut-off ball valve 10 and the second-order connecting pipe 3 are connected by controlling the handle 12 and the connecting rod 11. When performing maintenance, the shut-off ball valve 10 can close the second-order connecting pipes 3 on both sides through the handle 12 and the connecting rod 11, which can facilitate maintenance and management, and ensure that the liquid in the pipeline will not leak out, while ensuring the stability of the pressure value in the pipe. By controlling the No. 1 motor 19, the rotation of the valve stem 15 is controlled, and finally the direction of the main ball valve 13 is determined, so as to realize the connection of the first-order connecting pipe 2. By arranging the locking disk 22 and the arc-shaped clamping piece 23 on the reciprocating screw 20, and arranging them above the locking disk 16, the arc-shaped clamping piece 23 can be embedded in the locking disk 16 through the displacement of the locking disk 22 on the reciprocating screw 20, which can not only ensure the stability of the locking structure, but also avoid the wear of the locking disk.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A diffused fully welded ball valve, characterized in that: The invention comprises a valve body (1), a first-stage connecting pipe (2) and a second-stage connecting pipe, wherein the valve body (1) is configured to be spherical, a main ball valve (13) is rotatably connected inside the valve body (1), the main ball valve (13) is configured to be in a through spherical shape, a valve stem (15) is fixedly connected to the upper end of the main ball valve (13), the valve stem (15) penetrates and is rotatably connected to the outer side surface of the valve body (1), a locking assembly is provided on the valve stem (15), the two first-stage connecting pipes (2) are fixedly connected to the two sides of the valve body (1), and the valve stem (15) is connected to the valve body (1). The end of the first-stage connecting pipe (2) and both ends of the second-stage connecting pipe (3) are fixedly connected with a connecting piece (4); the first-stage connecting pipe (2) and the second-stage connecting pipe (3) are threadedly connected by means of a screw (5); a shut-off ball valve (10) is rotatably connected inside the second-stage connecting pipe; the upper end of the shut-off ball valve (10) is fixedly connected with a connecting rod (11); the connecting rod (11) penetrates and is rotatably connected to the outer side surface of the second-stage connecting pipe (3); the upper end of the connecting rod (11) is fixedly connected with a handle (12); The locking assembly comprises a control box (14), a power structure and a locking structure, wherein the power structure comprises a locking plate (16), a driven bevel gear (17), a driving bevel gear (18) and a first motor (19), wherein the locking plate (16) is fixedly connected to the top end of the valve stem (15), the locking plate (16) is arranged in a disc type, and spokes are arranged in the middle of the locking plate (16), the driven bevel gear (17) is fixedly connected to the side of the valve stem (15), the driven bevel gear (17) is arranged below the locking plate (16), the first motor (19) is fixedly connected to the side of the control box (14), the driving bevel gear (18) is fixedly connected to the output end of the first motor (19), and the driving bevel gear (18) and the driven bevel gear (17) are meshed with each other; The locking structure comprises a reciprocating screw (20), a second motor (21), a locking disk (22) and an arc-shaped clamping piece (23); the second motor (21) is fixedly connected to the inner top surface of the control box (14); the reciprocating screw (20) is fixedly connected to the output end of the second motor (21); the locking disk (22) is threadedly connected to the reciprocating screw (20); and a plurality of the arc-shaped clamping pieces (23) are fixedly connected to the lower surface of the locking disk (22) in a ring array.

2. A diffused fully welded ball valve according to claim 1, characterized in that: in: The screw (5) is threadedly connected to a connection hole on the connecting piece (4), and a relief component is fixedly connected to the second-stage connecting pipe (3), and the relief component is arranged on a side of the cut-off ball valve (10) close to the main ball valve (13).

3. A diffused fully welded ball valve according to claim 2, characterized in that: in: The relief assembly comprises a relief pipe (6), a relief valve (7), a branch pipe (8), a pressure gauge (9) and a valve (24); the relief pipe (6) is fixedly connected to the side of the second-stage connecting pipe (3); the relief valve (7) is fixedly connected to the top of the relief pipe (6); the branch pipe (8) is fixedly connected to the side of the relief pipe (6); the pressure gauge (9) is fixedly connected to the side of the branch pipe (8); and the valve (24) is fixedly connected to the side of the second-stage connecting pipe (3).

4. A diffused fully welded ball valve according to claim 3, characterized in that: in: The lowermost end of the reciprocating screw rod (20) is 5 cm away from the upper surface of the locking disk (16), and the arc-shaped clamping piece (23) is clamped and connected between the spokes after it falls down.

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