Positioning type anti-abrasion double-clip butterfly valve

Abstract

The utility model discloses a positioning type anti-abrasion wafer butterfly valve, which relates to the technical field of wafer butterfly valves, and comprises a valve body, a valve rod is arranged on the valve body, a valve plate is arranged on the valve rod, a fluted disc is arranged at the top end of the valve rod, a handle is arranged on the fluted disc, mounting holes which are distributed at equal intervals are arranged on the outer cylindrical surface of the valve body, and the valve plate is arranged on the valve rod. An inner sleeve is arranged in the valve body, the outer cylindrical face of the valve plate is attached to the inner sleeve, a reinforcing rod is arranged on one face of the valve plate, fixing mechanisms which are symmetrically distributed are arranged on the two sides of the valve body, and the fixing mechanisms are communicated with the interior of the valve body and attached to the outer cylindrical face of the valve plate. The double-clip type butterfly valve solves the problem that in the long-time using process of an existing double-clip type butterfly valve, an edge coating of a valve plate is prone to abrasion, and therefore the sealing performance and the service life of the butterfly valve are affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of clamping butterfly valve, especially to a positioning type anti-abrasion clamping butterfly valve. BACKGROUND

[0002] The clamping butterfly valve is a common industrial pipeline valve, mainly used for controlling fluid medium in the pipeline. Its feature is compact structure, especially suitable for narrow space or short pipeline spacing place. The clamping butterfly valve is connected between the flanges of two pipelines through double-end bolt, so that installation and maintenance are convenient, and it is mainly applied to petroleum, gas, chemical industry, water treatment, cooling water system of thermal power station.

[0003] The existing butterfly valve is impacted by fluid during use, which causes continuous friction between the valve plate and the valve body. Although the displacement of the valve plate is small, the abrasion still exists, and the edge coating of the valve plate is easily abraded during long-term use, which affects the sealing performance and service life of the butterfly valve. Therefore, a positioning type anti-abrasion clamping butterfly valve is proposed. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a positioning type anti-abrasion clamping butterfly valve to solve the problems mentioned in the background.

[0005] The utility model is implemented as follows: a positioning type anti-abrasion clamping butterfly valve, comprising a valve body, a valve rod provided on the valve body, a valve plate provided on the valve rod, a tooth disc provided at the top end of the valve rod, a handle provided on the tooth disc, equidistantly distributed mounting holes provided on the outer cylindrical surface of the valve body, an inner sleeve provided inside the valve body, the outer cylindrical surface of the valve plate being attached to the inner sleeve, a reinforcing rod provided on one side of the valve plate, symmetrically distributed fixing mechanisms provided on both sides of the valve body, the fixing mechanisms being in communication with the inside of the valve body and attached to the outer cylindrical surface of the valve plate.

[0006] A further technical solution of the utility model is that one end of the inner sleeve is connected to the valve body through a bolt.

[0007] A further technical solution of the utility model is that the fixing mechanism comprises a movable bin provided on both sides of the valve body, an electric push rod provided outside the movable bin, a connecting shaft provided inside the movable bin, a spring provided inside the movable bin, and a fixed seat provided in the movable bin.

[0008] A further technical solution of the utility model is that the movable bin is in communication with the inside of the valve body, and the two sides of the inner sleeve are provided with openings matching the size of the movable bin.

[0009] The further technical scheme of the utility model discloses: one end of the connecting shaft is fixedly connected with the output end of the electric push rod, the other end of the connecting shaft is fixedly connected with the non-working face of the fixed seat, and the springs are symmetrically arranged on the two sides of the connecting shaft.

[0010] The further technical scheme of the utility model discloses: the working end of the fixed seat is a concave structure, and the concave part of the fixed seat is attached to the outer cylindrical surface of the valve plate.

[0011] The utility model discloses beneficial effect:

[0012] 1、compared with the existing pair of butterfly valves, the utility model discloses the inner tube in the valve body, can avoid the direct contact between valve plate and valve body, thereby play the role of reducing abrasion, and the inner sleeve can be replaced, thereby effectively increasing the service life of butterfly valve.

[0013] 2, the fixed mechanism added to the both sides of the butterfly valve can effectively support and fix the valve plate, and can effectively prevent the impact of the fluid in the pipeline on the valve plate from causing the valve plate to continuously rub with the valve body and thereby abrading the valve plate. DRAWINGS

[0014] Figure 1 It is the front view of the positioning type anti-abrasion pair of butterfly valve provided by the utility model discloses a kind of;

[0015] Figure 2 It is the front view of the positioning type anti-abrasion pair of butterfly valve provided by the utility model discloses a kind of;

[0016] Figure 3 It is the sectional view of the positioning type anti-abrasion pair of butterfly valve provided by the utility model discloses a kind of.

[0017] Reference signs: 1.valve body;2.mounting hole;3.valve plate;4.valve stem;5.tooth disc;6.handle;7.fixed mechanism;71.movable bin;72.electric push rod;73.connecting shaft;74.spring;75.fixed seat;8.inner sleeve;9.stiffening bar. DETAILED DESCRIPTION

[0018] The following will be described by specific concrete example the embodiment of the utility model, and the person skilled in the art can easily understand other advantages and effects of the utility model from the content disclosed in the specification. The utility model can also be implemented or applied by another different specific embodiment, and each detail in the specification can be based on different viewpoints and applications, and various modifications or changes can be made without departing from the spirit of the utility model.

[0019] It should be noted that the structure, proportion, size and the like shown in the drawings of the present specification are only used to cooperate with the content disclosed in the specification, so as to be understood and read by those skilled in the art, and do not have technical substantial significance, and any modification of structure, change of proportion relationship or adjustment of size, without affecting the effect and purpose that can be achieved by the present utility model, should still fall within the scope of the technical content disclosed by the present utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" in the present specification are only for the convenience of clear description, and are not used to limit the scope of the present utility model, and the change or adjustment of relative relationship is also regarded as the scope of the present utility model.

[0020] In the present embodiment, as shown in Figure 1 A positioning type anti-wear double-clamp butterfly valve includes a valve body 1, a valve rod 4 provided on the valve body 1, a valve plate 3 provided on the valve rod 4, a tooth disc 5 provided at the top end of the valve rod 4, a handle 6 provided on the tooth disc 5, equidistantly distributed mounting holes 2 provided on the outer cylindrical surface of the valve body 1, an inner sleeve 8 provided inside the valve body 1, the outer cylindrical surface of the valve plate 3 being attached to the inner sleeve 8, a reinforcing rod 9 provided on one side of the valve plate 3, and symmetrically distributed fixing mechanisms 7 provided on both sides of the valve body 1, the fixing mechanisms 7 being in communication with the inside of the valve body 1 and attached to the outer cylindrical surface of the valve plate 3.

[0021] In the present embodiment, one end of the inner sleeve 3 is connected to the valve body 1 through a bolt. When the inner sleeve 3 is seriously worn, the inner sleeve 3 can be taken out from the inside of the valve body 1 by loosening the bolt on the inner sleeve 3, so as to realize replacement of the inner sleeve 3 and improve the service life of the butterfly valve.

[0022] In the present embodiment, the fixing mechanisms 7 can effectively support and fix the valve plate 3, and can effectively prevent the impact of the fluid in the pipeline on the valve plate 3 from causing the valve plate 3 to continuously rub against the valve body 1 and thus wear the valve plate. As shown in Figure 3 The fixing mechanisms 7 include movable bins 71 provided on both sides of the valve body 1, electric push rods 72 provided outside the movable bins 71, connecting shafts 73 provided inside the movable bins 71, springs 74 provided inside the movable bins 71, and fixing seats 75 provided inside the movable bins 71.

[0023] In the embodiment, the movable cavity 71 is in communication with the inner side of the valve body 1, and the inner sleeve 8 is provided with openings on both sides, which are matched with the movable cavity 71. One end of the connecting shaft 73 is fixedly connected with the output end of the electric push rod 72, and the other end of the connecting shaft 73 is fixedly connected with the non-working surface of the fixed seat 75. The springs are symmetrically arranged on both sides of the connecting shaft 73. When the electric push rod 72 pulls the fixed seat 75 to retract into the movable cavity 71 through the connecting shaft 73, the two sides of the valve plate 3 lose the fixation, and at this time, the valve plate 3 can be opened by rotating the handle 6. When it is needed to close the valve plate 3, the valve plate 3 is first reset by the handle 6 to close the valve body 1, and at this time, the fixed seat 75 in the fixing mechanism 7 is still in the retracted state, until the electric push rod 72 pushes the fixed seat 75 to move to the inside of the valve body 1. At this time, since the working end of the fixed seat 75 is in a concave structure, the concave end surface of the fixed seat 75 buckles the two sides of the valve plate 3, so as to fix the valve plate 3, and the concave part of the fixed seat 75 is in contact with the outer cylindrical surface of the valve plate 3.

[0024] The above is only the preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement and improvement, etc. made in the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A positioning-type anti-wear wafer butterfly valve, comprising a valve body (1), a valve stem (4) provided on the valve body (1), a valve plate (3) provided on the valve stem (4), a toothed disc (5) provided at the top of the valve stem (4), and a handle (6) provided on the toothed disc (5), characterized in that: The valve body (1) has equidistantly distributed mounting holes (2) on its outer cylindrical surface. The valve body (1) has an inner sleeve (8) inside. The outer cylindrical surface of the valve plate (3) is in contact with the inner sleeve (8). One side of the valve plate (3) is provided with a reinforcing rod (9). The valve body (1) has symmetrically distributed fixing mechanisms (7) on both sides. The fixing mechanisms (7) are in communication with the interior of the valve body (1) and are in contact with the outer cylindrical surface of the valve plate (3).

2. The positioning-type anti-wear wafer butterfly valve according to claim 1, characterized in that, One end of the inner sleeve (8) is connected to the valve body (1) by bolts.

3. A positioning-type anti-wear wafer butterfly valve according to claim 1, characterized in that, The fixing mechanism (7) includes: movable chambers (71) disposed on both sides of the valve body (1), electric push rods (72) disposed outside the movable chambers (71), connecting shafts (73) disposed inside the movable chambers (71), springs (74) disposed inside the movable chambers (71), and fixed seats (75) disposed inside the movable chambers (71).

4. A positioning-type anti-wear wafer butterfly valve according to claim 3, characterized in that, The movable chamber (71) is connected to the inner side of the valve body (1), and the inner sleeve (8) has openings on both sides that are adapted to the size of the movable chamber (71).

5. A positioning-type anti-wear wafer butterfly valve according to claim 4, characterized in that, One end of the connecting shaft (73) is fixedly connected to the output end of the electric actuator (72), and the other end of the connecting shaft (73) is fixedly connected to the non-working surface of the fixed base (75). The springs are symmetrically distributed on both sides of the connecting shaft (73).

6. A positioning-type anti-wear wafer butterfly valve according to claim 5, characterized in that, The working end of the fixed seat (75) has a concave structure, and the concave part of the fixed seat (75) is in contact with the outer cylindrical surface of the valve plate (3).

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