A multi-stage flow synchronous regulating plug valve

Abstract

The utility model discloses a multi-stage flow synchronous regulating plug valve, comprising a protective cover, a valve pipe and an automatic locking mechanism; the protective cover: the lower end of the inner part thereof is rotatably connected with a rotating support frame, the upper surface of the rotating support frame is fixedly connected with a valve body, the outer surface of the valve body is rotatably connected with the inner wall of the protective cover, a mounting groove is provided at the front side of the upper end of the outer surface of the protective cover, the interior of the mounting groove is connected with the interior of the protective cover, and a flow valve port is provided inside the valve body; the valve pipe: the valve pipe is fixedly connected to the outer surface of the protective cover symmetrically front and back, the interior of the valve pipe is connected with the interior of the protective cover, the opposite ends of the valve pipe are fixedly connected with connecting flanges, and the opposite sides of the connecting flanges are provided with evenly distributed threaded locking grooves. The multi-stage flow synchronous regulating plug valve can be automatically positioned during multi-stage flow regulation, and can quickly regulate the flow by sliding the baffle up and down.

Description

Technical Field

[0001] The utility model relates to the technical field of plug valves, in particular to a multi-stage flow synchronous regulating plug valve. Background Art

[0002] A plug valve is a rotary valve in the shape of a closing piece or a plunger. It is a valve that can be opened or closed by rotating 90 degrees to connect or separate the channel opening on the valve plug with the channel opening on the valve body.

[0003] Some traditional plug valves use a plug body with a through hole as the valve opening and closing part, and the plug body rotates with the valve stem to achieve the opening and closing action; the current plug valve has the following problems: it cannot automatically position during the multi-stage adjustment process, which easily leads to inaccurate flow regulation. Therefore, a multi-stage flow synchronous adjustment plug valve is proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a multi-stage flow synchronous regulating plug valve, which can automatically position when performing multi-stage flow regulation, making the flow regulation more precise, and can perform multi-stage flow rapid regulation, which can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-stage flow synchronous regulating plug valve, comprising a protective cover, a valve pipe and an automatic locking mechanism;

[0006] Protection cover: The lower end of the inner part is rotatably connected with a rotating support frame, the upper surface of the rotating support frame is fixedly connected with a valve body, the outer surface of the valve body is rotatably connected with the inner wall of the protection cover, a mounting groove is provided at the front side of the upper end of the outer surface of the protection cover, the inside of the mounting groove is connected with the inside of the protection cover, and a flow valve port is provided inside the valve body;

[0007] Valve pipe: It is fixedly connected to the outer surface of the protective cover symmetrically in front and back, the interior of the valve pipe is connected to the interior of the protective cover, the opposite ends of the valve pipe are fixedly connected with connecting flanges, and the opposite sides of the connecting flanges are provided with evenly distributed thread locking grooves;

[0008] Automatic locking mechanism: It is arranged inside the mounting groove, can automatically position during multi-stage flow adjustment, and can quickly adjust the flow by sliding the baffle up and down.

[0009] Furthermore, a support column is fixedly connected to the middle of the upper surface of the valve body, a connecting frame is fixedly connected to the upper surface of the support column, the outer surface of the support column is rotatably connected to the upper end of the inner wall of the protective outer cover, and the upper end of the connecting frame penetrates the upper surface of the protective outer cover, so that multi-stage flow rate can be adjusted synchronously.

[0010] Furthermore, a rotating handle is fixedly connected to the upper end of the connecting frame to provide power for flow regulation.

[0011] Furthermore, a rubber protective cover is provided on the rear end fixed sleeve of the outer surface of the rotating handle to protect the hands of the user.

[0012] Furthermore, the automatic locking mechanism includes a positioning frame, a locking column, a fixing frame and a positioning locking mouth. The front side of the mounting groove is fixedly connected to the positioning frame, the front side of the positioning frame is provided with evenly distributed sliding mouths, the inside of the sliding mouths are slidably connected to the locking columns, the middle part of the outer surface of the locking column is fixedly sleeved with a fixing frame, the outer surface of the support column is provided with evenly distributed positioning locking mouths, and the positioning locking mouths are installed in cooperation with the locking column to perform flow positioning.

[0013] Furthermore, the automatic locking mechanism also includes a spring, and the spring is fixedly connected between the front side of the fixing frame and the front wall of the positioning frame. The inside of the spring is sleeved with the outer surface of the locking column, so that automatic positioning can be performed.

[0014] Furthermore, the automatic locking mechanism also includes a sliding mouth, a baffle and a pull rack. The sliding mouth is opened at the front end of the upper surface of the protective outer cover, the inner part of the sliding mouth is slidably connected with the baffle, the lower end of the baffle is located inside the mounting groove, and the upper end of the baffle is fixedly connected with the pull rack, and multi-level flow can be quickly and synchronously adjusted by sliding the baffle up and down.

[0015] Furthermore, the front end of the locking column is fixedly connected with a pull button, which can save manpower for limit reset.

[0016] Furthermore, the opposite sides of the connecting flange are fixedly connected with rubber sealing pads to increase air tightness.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. When multi-stage flow synchronization adjustment is required, the staff rotates the rotating handle, and the rotation of the rotating handle drives the connecting frame to rotate, and the rotation of the connecting frame drives the support column to rotate, and the rotation of the support column drives the valve body to rotate. The rotation of the valve body changes the angle between the flow valve port and the valve pipe, and the gap between the valve pipe and the flow valve port becomes smaller. During the rotation process, when the positioning locking port and the locking column are not aligned, the support column has a blocking effect on the locking column, and the locking column drives the fixing frame to compress the spring. When the positioning locking port is aligned with the corresponding locking column, the locking column loses its blocking effect and drives the locking column to move backward under the action of the elastic potential energy of the spring. The locking column is inserted into the interior of the positioning locking port, thereby locking the support column rotation, so that the locking positioning can be automatically performed, making the flow adjustment more accurate;

[0019] 2. When continuous multi-stage adjustment is required, the staff pulls the pull frame so that the pull frame drives the baffle door to slide up and down inside the sliding mouth. The sliding of the baffle door blocks the locking column, so that the locking column is still blocked when it is aligned with the positioning locking mouth, and the positioning locking will not be performed. The baffle door can be slid down to block part of the positioning locking mouth, so that continuous and rapid multi-stage adjustment can be performed, and automatic positioning locking will be performed when the corresponding level is specified. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of the protective cover of the utility model;

[0022] Figure 3 This is a schematic diagram of the local structure of the valve body of the utility model;

[0023] Figure 4 This is an enlarged structural diagram of point A of the utility model.

[0024] In the figure: 1 protective cover, 2 valve body, 3 rotating support frame, 4 flow valve port, 5 support column, 6 connecting frame, 7 rotating handle, 8 automatic locking mechanism, 81 sliding mouth, 82 positioning frame, 83 locking column, 84 fixing frame, 85 positioning locking mouth, 86 spring, 87 stop door, 88 pull frame, 9 pull button, 10 rubber protective cover, 11 valve pipe, 12 connecting flange, 13 rubber sealing pad, 14 threaded locking groove. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1-4 , This embodiment provides a technical solution: a multi-stage flow synchronous regulating plug valve, including a protective cover 1, a valve tube 11 and an automatic locking mechanism 8;

[0027] Protection cover 1: The lower end of the interior thereof is rotatably connected with a rotating support frame 3, the upper surface of the rotating support frame 3 is fixedly connected with a valve body 2, the outer surface of the valve body 2 is rotatably connected with the inner wall of the protection cover 1, a mounting groove is provided at the front side of the upper end of the outer surface of the protection cover 1, the interior of the mounting groove is communicated with the interior of the protection cover 1, a flow valve port 4 is provided inside the valve body 2, a support column 5 is fixedly connected to the middle of the upper surface of the valve body 2, a connecting frame 6 is fixedly connected to the upper surface of the support column 5, the outer surface of the support column 5 is rotatably connected with the upper end of the inner wall of the protection cover 1, the upper end of the connecting frame 6 penetrates the upper surface of the protection cover 1, the upper end of the connecting frame 6 is fixedly connected with a rotating handle 7, and the outer surface rear end of the rotating handle 7 is fixedly sleeved with a rubber protective cover 10;

[0028] The valve tube 11 is fixedly connected to the outer surface of the protective cover 1 symmetrically in front and back, the interior of the valve tube 11 is communicated with the interior of the protective cover 1, the opposite ends of the valve tube 11 are fixedly connected with connecting flanges 12, the opposite sides of the connecting flanges 12 are provided with evenly distributed thread locking grooves 14, and the opposite sides of the connecting flanges 12 are fixedly connected with rubber sealing pads 13;

[0029] Automatic locking mechanism 8: It is arranged inside the installation groove. The automatic locking mechanism 8 includes a positioning frame 82, a locking column 83, a fixing frame 84 and a positioning locking opening 85. The front side of the installation groove is fixedly connected with the positioning frame 82. The front side of the positioning frame 82 is provided with evenly distributed sliding openings. The inside of the sliding openings is slidably connected with the locking column 83. The middle part of the outer surface of the locking column 83 is fixedly sleeved with a fixing frame 84. The outer surface of the support column 5 is provided with evenly distributed positioning locking openings 85. The positioning locking openings 85 are all installed in cooperation with the locking column 83. The locking mechanism 8 also includes a spring 86, and the spring 86 is fixedly connected between the front side of the fixing frame 84 and the front wall of the positioning frame 82, and the inside of the spring 86 is sleeved with the outer surface of the locking column 83. The automatic locking mechanism 8 also includes a slide 81, a stopper 87 and a pull rack 88. The slide 81 is opened at the front end of the upper surface of the protective outer cover 1, and the inside of the slide 81 is slidably connected to the stopper 87, and the lower end of the stopper 87 is located inside the installation groove, and the upper end of the stopper 87 is fixedly connected to the pull rack 88, and the front end of the locking column 83 is fixedly connected to the pull button 9.

[0030] The working principle of the utility model is as follows:

[0031] During installation, the staff installs the multi-stage flow synchronous regulating plug valve between the two water pipes. Under normal circumstances, water flows into the interior of the protective cover 1 through the valve pipe 11, flows through the interior of the flow valve port 4, and flows out from the other valve pipe 11;

[0032] When multi-stage flow synchronous regulation is required, the staff rotates the rotating handle 7, and the rotation of the rotating handle 7 drives the connecting frame 6 to rotate, and the rotation of the connecting frame 6 drives the supporting column 5 to rotate, and the rotation of the supporting column 5 drives the valve body 2 to rotate. The rotation of the valve body 2 causes the angle between the flow valve port 4 and the valve pipe 11 to change, so that the gap between the valve pipe 11 and the flow valve port 4 becomes smaller. During the rotation process, when the positioning locking port 85 is not aligned with the locking column 83, the supporting column 5 has a blocking effect on the locking column 83, and the locking column 83 drives the fixing frame 84 to compress the spring 86. When the positioning locking port 85 is aligned with the corresponding locking column 83, the locking column 83 loses its obstruction, and the locking column 83 is driven to move backward under the action of the elastic potential energy of the spring 86, and the locking column 83 is inserted into the interior of the positioning locking port 85, thereby locking the support column 5 rotation, so that the locking positioning can be automatically performed, so that the flow regulation is more accurate.

[0033] When continuous multi-stage adjustment is required, the staff pulls the pull frame 88, so that the pull frame 88 drives the blocking door 87 to slide up and down inside the sliding mouth 81, and the blocking door 87 slides to block the locking column 83, so that the locking column 83 is still blocked when it is aligned with the positioning locking mouth 85, and the positioning locking will not be performed. The blocking door 87 can slide downward to block part of the positioning locking mouth 85, so that continuous and rapid multi-stage adjustment can be performed, and automatic positioning locking will be performed when the corresponding level is specified.

[0034] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A multi-stage flow synchronous regulating plug valve, characterized in that: It comprises a protective cover (1), a valve tube (11) and an automatic locking mechanism (8); The protective outer cover (1) has a rotating support frame (3) rotatably connected to its lower end, the upper surface of the rotating support frame (3) is fixedly connected to the valve body (2), the outer surface of the valve body (2) is rotatably connected to the inner wall of the protective outer cover (1), a mounting groove is provided at the front side of the upper end of the outer surface of the protective outer cover (1), the interior of the mounting groove is communicated with the interior of the protective outer cover (1), and a flow valve port (4) is provided inside the valve body (2); The valve tube (11) is fixedly connected to the outer surface of the protective cover (1) in a front-to-back symmetrical manner, the interior of the valve tube (11) is communicated with the interior of the protective cover (1), the opposite ends of the valve tube (11) are fixedly connected to the connecting flange (12), and the opposite sides of the connecting flange (12) are provided with evenly distributed thread locking grooves (14); Automatic locking mechanism (8): arranged inside the installation slot; The automatic locking mechanism (8) comprises a positioning frame (82), a locking column (83), a fixing frame (84) and a positioning locking opening (85); the front side of the mounting groove is fixedly connected with the positioning frame (82); the front side of the positioning frame (82) is provided with evenly distributed sliding openings, the interior of the sliding openings is slidably connected with the locking columns (83); the middle part of the outer surface of the locking columns (83) is fixedly sleeved with the fixing frame (84); the outer surface of the support column (5) is provided with evenly distributed positioning locking openings (85), and the positioning locking openings (85) are all installed in coordination with the locking columns (83); The automatic locking mechanism (8) further comprises a spring (86), the front side surface of the fixing frame (84) and the front wall of the positioning frame (82) are both fixedly connected with the spring (86), and the interior of the spring (86) is sleeved with the outer surface of the locking column (83); The automatic locking mechanism (8) further comprises a sliding opening (81), a blocking door (87) and a pulling frame (88); the sliding opening (81) is opened at the front end of the upper surface of the protective outer cover (1); the blocking door (87) is slidably connected inside the sliding opening (81); the lower end of the blocking door (87) is located inside the mounting groove; and the upper end of the blocking door (87) is fixedly connected to the pulling frame (88).

2. A multi-stage flow synchronous regulating plug valve according to claim 1, characterized in that: A support column (5) is fixedly connected to the middle of the upper surface of the valve body (2), a connecting frame (6) is fixedly connected to the upper surface of the support column (5), the outer surface of the support column (5) is rotatably connected to the upper end of the inner wall of the protective outer cover (1), and the upper end of the connecting frame (6) penetrates the upper surface of the protective outer cover (1).

3. A multi-stage flow synchronous regulating plug valve according to claim 2, characterized in that: The upper end of the connecting frame (6) is fixedly connected with a rotating handle (7).

4. A multi-stage flow synchronous regulating plug valve according to claim 3, characterized in that: A rubber protective cover (10) is fixedly mounted on the rear end of the outer surface of the rotating handle (7).

5. The multi-stage flow synchronous regulating plug valve according to claim 1, characterized in that: The front end of the locking column (83) is fixedly connected with a pull button (9).

6. The multi-stage flow synchronous regulating plug valve according to claim 1, characterized in that: The opposite sides of the connecting flange (12) are fixedly connected with rubber sealing pads (13).

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