Butterfly valve with good protection performance

Abstract

The butterfly valve with the good protection performance comprises a butterfly valve body, connecting pipes are arranged on the two sides of the butterfly valve body correspondingly, the connecting pipes on the two sides are fixedly connected with the butterfly valve body through bolts, a fixing rod is fixedly installed on the upper surface of the butterfly valve body, and an electric actuator is fixedly installed at the upper end of the fixing rod; a protection mechanism is arranged outside the butterfly valve body, and a manual driving mechanism is arranged on the upper side of the butterfly valve body. Through use of the protection mechanism, the butterfly valve can be protected through the first fixing shell and the second fixing shell, a sealing strip is connected with a sealing groove in a clamped mode, when the first fixing shell and the second fixing shell are clamped, a sealing gasket in the sealing groove can be extruded, and the first fixing shell and the second fixing shell are sealed; the butterfly valve is prevented from being eroded and damaged by rainwater or some corrosive liquid, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the field of butterfly valves, and in particular to a butterfly valve with good protective performance. Background Art

[0002] Butterfly valve is a commonly used control valve with simple structure, convenient operation, fast switching, small fluid resistance and good sealing performance. It is widely used in petroleum, chemical, metallurgy, electric power, water treatment and other industries. The working principle of butterfly valve is to adjust the flow by rotating the valve disc. The valve disc presents a butterfly shape, hence the name butterfly valve. The existing butterfly valve still has some problems when working.

[0003] The prior art with patent publication (announcement) number CN218408560U discloses a butterfly valve with good protection performance, including a butterfly valve body and a tube body, a first flange fixedly connected to the butterfly valve body, a second flange fixedly connected to the tube body, the first flange and the second flange are provided with through holes that match each other, the butterfly valve body is provided with a connecting seat, a rotating rod is provided on the connecting seat, a rotating handle is fixedly connected to the rotating rod, a bolt is provided on the through hole, a nut is threaded on the bolt, and a slot is opened on the second flange, and the slot is adapted to the bolt.

[0004] The above patent document discloses a butterfly valve with good protective performance. Although it can solve the problem that the nuts and bolts at the connection between the two flanges are easily loosened, thereby causing leakage of the butterfly valve and affecting normal use, the disadvantage is that it cannot protect the outside of the butterfly valve. Since the butterfly valve will be used in different environments, rainwater or some corrosive liquids will cause erosion and damage to the butterfly valve, affecting the use of the butterfly valve. In addition, during the use of the current electric butterfly valve, the electric actuator will be damaged, and the butterfly valve cannot be operated.

[0005] Therefore, we have made improvements to this and proposed a butterfly valve with good protection. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a butterfly valve with good protection, which solves the problems mentioned in the background technology.

[0007] In order to achieve the above-mentioned utility model purpose, the utility model provides the following technical solutions:

[0008] A butterfly valve with good protection can solve the above problems.

[0009] The specific application is as follows:

[0010] It includes a butterfly valve body, connecting pipes are respectively arranged on both sides of the butterfly valve body, and the connecting pipes on both sides are fixedly connected to the butterfly valve body by bolts, a fixing rod is fixedly installed on the upper surface of the butterfly valve body, and an electric actuator is fixedly installed on the upper end of the fixing rod, a protective mechanism is arranged on the outside of the butterfly valve body, and a manual driving mechanism is arranged on the upper side of the butterfly valve body;

[0011] The protective mechanism includes a first fixed shell and a second fixed shell, and the upper and lower surfaces of the first fixed shell and the second fixed shell are respectively fixedly installed with a fixed block and a fixed box, a side surface of the fixed block is fixedly installed with a connecting block, and the other end surface of the connecting block is fixedly installed with a triangular block, and the connecting block and the triangular block are stuck into the interior of the fixed box.

[0012] As a preferred technical solution of the present application, the fixed box is rotatably connected to the inside of the fixed box with a first rotating rod and a second rotating rod, and the connection method between the first rotating rod and the second rotating rod is a rotating connection, and the first rotating rod and the second rotating rod are fixedly installed with a clamping block at one end inside the fixed box, and the two clamping blocks are clamped and connected to the triangular block, and springs are fixedly installed between the first rotating rod and the second rotating rod and the inner walls on both sides of the fixed box.

[0013] As a preferred technical solution of the present application, a sealing strip is fixedly installed on one side surface of the first fixed shell, and a sealing groove is opened on one side surface of the second fixed shell. The sealing strip and the sealing groove are connected by a snap-fit ​​connection, and a sealing gasket is fixedly installed inside the sealing groove.

[0014] As a preferred technical solution of the present application, the manual drive mechanism includes an installation box, and the installation box is fixedly installed on the top of the fixed rod, the fixed rod is rotatably connected to a connecting shaft inside, and the top of the connecting shaft is fixedly connected to the electric actuator, a worm gear is fixedly installed on the outside of the connecting shaft, and one side of the worm gear is meshingly connected to a worm, and a connecting rod is fixedly installed inside the worm, and a handle is fixedly installed on one end of the connecting rod.

[0015] As a preferred technical solution of the present application, the installation box is slidably connected to a connecting frame inside, and a connecting rod is rotatably connected inside the connecting frame, a threaded rod is rotatably connected to a surface of one side of the connecting frame, and the threaded rod is threadedly connected to the installation box, and a knob is fixedly installed on the other end surface of the threaded rod.

[0016] As a preferred technical solution of the present application, a slide groove is provided on one side surface of the installation box, and the connecting rod is arranged inside the slide groove.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] In the scheme of this application:

[0019] 1. Through the use of the protective mechanism, the butterfly valve can be protected by the first fixed shell and the second fixed shell. The sealing strip is connected with the sealing groove. When the first fixed shell and the second fixed shell are engaged, the sealing gasket inside the sealing groove will be squeezed to seal the first fixed shell and the second fixed shell, thereby preventing rainwater or some corrosive liquids from eroding and damaging the butterfly valve, thereby improving its practicality.

[0020] 2. Through the use of the manual drive mechanism, when the electric actuator is damaged, turn the knob on the surface of one side of the installation box, the knob drives the threaded rod to rotate, and drives the connecting frame and the internal connecting rod to move, so that the worm on the surface of the connecting rod engages with the worm wheel. By turning the handle, the connecting rod and the worm wheel are driven to rotate, and then the worm wheel is driven to rotate, so that the butterfly valve is opened and closed, which is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the overall three-dimensional structure of a butterfly valve with good protection provided by the present application;

[0022] Figure 2 A schematic diagram of the structure of the first fixed shell and the second fixed shell of the butterfly valve with good protection provided by the present application;

[0023] Figure 3 A schematic structural diagram of a cross-section of a butterfly valve fixing block and a fixing box with good protection provided by the present application;

[0024] Figure 4 The butterfly valve with good protection provided for this application Figure 3 The enlarged structural diagram of the middle A part;

[0025] Figure 5 A schematic diagram of the three-dimensional structure inside the protective butterfly valve installation box provided in this application.

[0026] Indicated in the figure:

[0027] 1. Butterfly valve body; 2. Connecting pipe; 3. Bolt; 4. Fixing rod; 5. Electric actuator; 6. Protective mechanism; 601. First fixing shell; 602. Second fixing shell; 603. Fixing block; 604. Connecting block; 605. Triangular block; 606. Fixing box; 607. First rotating rod; 608. Second rotating rod; 609. Block; 610. Spring; 611. Sealing strip; 612. Sealing groove; 613. Sealing pad; 7. Manual drive mechanism; 701. Mounting box; 702. Connecting shaft; 703. Worm gear; 704. Worm; 705. Connecting rod; 706. Handle; 707. Connecting frame; 708. Threaded rod; 709. Knob; 710. Slide groove. DETAILED DESCRIPTION

[0028] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described examples are part of the embodiments of the utility model, not all of the embodiments.

[0029] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the present invention to be protected, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "upper" and "lower" is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0033] In order to solve the technical problems in the background technology, the following butterfly valve with good protection is provided:

[0034] Combination Figure 1 - Figure 5As shown, the utility model provides a butterfly valve with good protection, including a butterfly valve body 1, connecting pipes 2 are respectively arranged on both sides of the butterfly valve body 1, and the connecting pipes 2 on both sides are fixedly connected to the butterfly valve body 1 by bolts 3, a fixing rod 4 is fixedly installed on the upper surface of the butterfly valve body 1, and an electric actuator 5 is fixedly installed on the upper end of the fixing rod 4, a protection mechanism 6 is arranged on the outside of the butterfly valve body 1, and a manual driving mechanism 7 is arranged on the upper side of the butterfly valve body 1, the protection mechanism 6 includes a first fixed shell 601 and a second fixed shell 602, and a fixing block 603 and a fixing box 606 are fixedly installed on the upper and lower surfaces of the first and second fixed shells 601, 602, respectively, a connecting block 604 is fixedly installed on one side surface of the fixing block 603, and a triangular block 605 is fixedly installed on the other end surface of the connecting block 604, and the connecting block 604 and the triangular block 605 are stuck into the interior of the fixing box 606.

[0035] In this embodiment, by arranging the first fixed shell 601 and the second fixed shell 602 outside the butterfly valve body 1, the butterfly valve body 1 can be protected to prevent rainwater or some corrosive liquids from corroding and damaging the butterfly valve body 1 under different environments.

[0036] refer to Figure 1 - Figure 3 On the basis of the above embodiment, the first fixed shell 601 and the second fixed shell 602 can be fixedly connected. This embodiment provides the following design:

[0037] As a preferred embodiment, the interior of the fixed box 606 is rotatably connected with a first rotating rod 607 and a second rotating rod 608, and the connection method between the first rotating rod 607 and the second rotating rod 608 is a rotating connection, and one end of the first rotating rod 607 and the second rotating rod 608 inside the fixed box 606 is fixedly installed with a clamping block 609, and the two clamping blocks 609 are clamped and connected with the triangular block 605, and springs 610 are fixedly installed between the first rotating rod 607 and the second rotating rod 608 and the inner walls on both sides of the fixed box 606.

[0038] In this embodiment: the connecting block 604 and the triangular block 605 on one side surface of the fixed block 603 can be inserted into the interior of the fixed box 606, and the inclined surfaces on both sides of the triangular block 605 can squeeze the blocks 609 on both sides, so that the first rotating rod 607 and the second rotating rod 608 rotate, and drive the springs 610 on both sides to deform. When the triangular block 605 is inserted into the fixed box 606, the springs 610 on both sides will drive the first rotating rod 607, the second rotating rod 608 and the surface blocks 609 to reset through their own elastic force. The blocks 609 on both sides can clamp the triangular block 605 and fix the fixed block 603, thereby achieving the purpose of fixing the first fixed shell 601 and the second fixed shell 602.

[0039] refer to Figure 3 and Figure 4 On the basis of the above embodiment, the sealing performance between the first fixed shell 601 and the second fixed shell 602 can be improved. The present embodiment provides the following design:

[0040] As a preferred embodiment, a sealing strip 611 is fixedly installed on one side surface of the first fixed shell 601, and a sealing groove 612 is opened on one side surface of the second fixed shell 602. The connection between the sealing strip 611 and the sealing groove 612 is a snap-fit ​​connection, and a sealing gasket 613 is fixedly installed inside the sealing groove 612.

[0041] In this embodiment: through the snap connection between the sealing strip 611 and the sealing groove 612, the sealing gasket 613 inside the sealing groove 612 can be squeezed to improve the sealing performance between the first fixed shell 601 and the second fixed shell 602, preventing rainwater or some corrosive liquids from entering the shell and causing damage to the butterfly valve.

[0042] refer to Figure 1 - Figure 5 On the basis of the above embodiment, the butterfly valve can be operated when the electric actuator 5 is damaged. The present embodiment provides the following design:

[0043] As a preferred embodiment, the manual drive mechanism 7 includes an installation box 701, and the installation box 701 is fixedly installed on the top of the fixed rod 4, the fixed rod 4 is internally rotatably connected with a connecting shaft 702, and the top of the connecting shaft 702 is fixedly connected to the electric actuator 5, the outside of the connecting shaft 702 is fixedly installed with a worm gear 703, and one side of the worm gear 703 is meshingly connected with a worm 704, and a connecting rod 705 is fixedly installed inside the worm gear 704, and a handle 706 is fixedly installed at one end of the connecting rod 705.

[0044] In this embodiment, the handle 706 can be rotated to drive the connecting rod 705 and the worm 704 on the surface to rotate, which can drive the worm wheel 703 and the internal connecting shaft 702 to rotate, and drive the butterfly plate to rotate, so as to operate the butterfly valve.

[0045] refer to Figure 1 - Figure 5 On the basis of the above embodiment, the worm 704 can be made not to affect the rotation of the worm wheel 703 and the connecting shaft 702. The present embodiment provides the following design:

[0046] As a preferred embodiment, the installation box 701 is internally slidably connected to a connecting frame 707, and the connecting rod 705 is rotatably connected inside the connecting frame 707, a threaded rod 708 is rotatably connected to a surface of one side of the connecting frame 707, and the threaded rod 708 is threadedly connected to the installation box 701, and a knob 709 is fixedly installed on the other end surface of the threaded rod 708.

[0047] In this embodiment: when manual drive is required, the knob 709 can be rotated to drive the connecting frame 707 to move, and the internal connecting rod 705 and worm 704 can be moved to make the worm 704 mesh with the worm wheel 703 for operation. When not in use, the knob 709 can be rotated in the opposite direction to prevent the worm 704 from meshing with the worm wheel 703, so as to avoid affecting the rotation of the connecting shaft 702.

[0048] As a preferred embodiment, a slide groove 710 is provided on one side surface of the installation box 701 , and the connecting rod 705 is disposed inside the slide groove 710 .

[0049] In this embodiment, the sliding groove 710 is provided to enable the connecting rod 705 to slide inside.

[0050] Specifically, the working principle of this solution is:

[0051] When in use, the first fixed shell 601 and the second fixed shell 602 are engaged, and the connecting block 604 and the triangular block 605 on one side surface of the fixed block 603 can be inserted into the interior of the fixed box 606, and the inclined surfaces on both sides of the triangular block 605 can squeeze the blocks 609 on both sides, so that the first rotating rod 607 and the second rotating rod 608 rotate, and drive the springs 610 on both sides to deform. When the triangular block 605 is inserted into the fixed box 606, the springs 610 on both sides will drive the first rotating rod 607, the second rotating rod 608 and the surface blocks 609 to reset through their own elastic force. The blocks 609 on both sides can clamp the triangular block 605, fix the fixed block 603, and make the sealing strip 611 and the sealing groove 612 engaged and connected. The sealing strip 611 can squeeze the sealing gasket 613 inside the sealing groove 612, improve the sealing performance between the first fixed shell 601 and the second fixed shell 602, and protect the butterfly valve body 1.

[0052] When the electric actuator 5 is damaged, the knob 709 on the side of the installation box 701 is rotated to drive the connecting frame 707 to move, and the internal connecting rod 705 and the worm 704 are moved to make the worm 704 mesh with the worm wheel 703. Then, the connecting rod 705 and the worm 704 on the surface can be driven to rotate by turning the handle 706, which can drive the worm wheel 703 and the internal connecting shaft 702 to rotate, and drive the butterfly plate to rotate to operate the butterfly valve. The above is the working process of the entire device, and the contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0053] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention are included in the scope of the claims of the present invention.

Claims

1. A butterfly valve with good protection, comprising a butterfly valve body (1), characterized in that: Connecting pipes (2) are respectively provided on both sides of the butterfly valve body (1), and the connecting pipes (2) on both sides are fixedly connected to the butterfly valve body (1) by bolts (3); a fixing rod (4) is fixedly mounted on the upper surface of the butterfly valve body (1), and an electric actuator (5) is fixedly mounted on the upper end of the fixing rod (4); a protection mechanism (6) is provided on the outside of the butterfly valve body (1), and a manual driving mechanism (7) is provided on the upper side of the butterfly valve body (1); The protective mechanism (6) comprises a first fixed shell (601) and a second fixed shell (602), and the upper and lower surfaces of the first fixed shell (601) and the second fixed shell (602) are respectively fixedly mounted with a fixed block (603) and a fixed box (606), a connecting block (604) is fixedly mounted on one side surface of the fixed block (603), and a triangular block (605) is fixedly mounted on the other end surface of the connecting block (604), and the connecting block (604) and the triangular block (605) are inserted into the interior of the fixed box (606).

2. A butterfly valve with good protection according to claim 1, characterized in that: The fixed box (606) is rotatably connected to a first rotating rod (607) and a second rotating rod (608) inside, and the connection between the first rotating rod (607) and the second rotating rod (608) is a rotational connection. One end of the first rotating rod (607) and the second rotating rod (608) inside the fixed box (606) is fixedly installed with a clamping block (609), and the two clamping blocks (609) are clamped and connected to the triangular block (605). Springs (610) are fixedly installed between the first rotating rod (607) and the second rotating rod (608) and the inner walls on both sides of the fixed box (606).

3. A butterfly valve with good protection according to claim 1, characterized in that: A sealing strip (611) is fixedly installed on one side surface of the first fixed shell (601), and a sealing groove (612) is provided on one side surface of the second fixed shell (602); the sealing strip (611) and the sealing groove (612) are connected by snap-fit ​​connection, and a sealing gasket (613) is fixedly installed inside the sealing groove (612).

4. A butterfly valve with good protection according to claim 1, characterized in that: The manual drive mechanism (7) comprises a mounting box (701), and the mounting box (701) is fixedly mounted on the top of a fixed rod (4); a connecting shaft (702) is rotatably connected inside the fixed rod (4), and the top end of the connecting shaft (702) is fixedly connected to an electric actuator (5); a worm gear (703) is fixedly mounted outside the connecting shaft (702), and a worm (704) is meshingly connected to one side of the worm gear (703), and a connecting rod (705) is fixedly mounted inside the worm (704), and a handle (706) is fixedly mounted on one end of the connecting rod (705).

5. A butterfly valve with good protection according to claim 4, characterized in that: The installation box (701) is slidably connected to a connecting frame (707) inside, and a connecting rod (705) is rotatably connected inside the connecting frame (707). A threaded rod (708) is rotatably connected to a surface of one side of the connecting frame (707), and the threaded rod (708) is threadedly connected to the installation box (701), and a knob (709) is fixedly installed on the other end surface of the threaded rod (708).

6. A butterfly valve with good protection according to claim 5, characterized in that: A sliding groove (710) is provided on one side surface of the installation box (701), and the connecting rod (705) is arranged inside the sliding groove (710).

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