Adjustable lengthened rod butterfly valve

Abstract

The utility model relates to the technical field of butterfly valve accessory devices, in particular to an adjustable lengthened rod butterfly valve, which is characterized in that a worker can quickly adjust the height of a rod body of a butterfly valve main body according to field installation environments and requirements, so that the working efficiency and the effect of operating the butterfly valve by the worker are improved, and the working efficiency is improved. Therefore, the practicability of the adjustable lengthened rod butterfly valve is enhanced. Comprising a butterfly valve body and a valve rod, the butterfly valve body is provided with the valve rod, and the butterfly valve further comprises a connecting block, a first screw rod, a sliding barrel, two sets of bevel gears, a rotating rod, two sets of first sliding blocks, a rotating handle and a connecting mechanism, multiple sets of tooth blocks are evenly arranged on the top of the outer side of the valve rod, and multiple sets of tooth blocks are evenly arranged on the inner wall of a groove in the bottom of the connecting block; a groove in the bottom of the connecting block is engaged and clamped with the top of the valve rod through a tooth block, the bottom of the connecting block is rotationally connected with a top plate of the butterfly valve body, the left end and the right end of the groove in the top of the connecting block are each provided with a sliding groove, and the two first sliding blocks are slidably connected with the sliding grooves.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly valve accessory devices, in particular to an adjustable extended-stem butterfly valve. Background Art

[0002] As we all know, butterfly valve, also known as flap valve, is a simple regulating valve that can be used for the on-off control of low-pressure pipeline media. A butterfly valve refers to a valve whose closing member (valve disc or butterfly plate) is a disc that rotates around the valve shaft to achieve opening and closing. It can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media; when the installation location is located in a foundation pit, a deep well or a narrow space environment, in order to facilitate the staff to operate the butterfly valve more quickly to open and close, an extended stem butterfly valve is often installed;

[0003] However, when using an existing extended stem butterfly valve, it was found that the length of the butterfly valve main stem was fixed and could not be adjusted according to actual conditions. When its length was not suitable, it was necessary to replace the butterfly valve with another length, which caused a waste of resources and reduced the work efficiency and effect of the staff in operating the butterfly valve, thus resulting in poor practicality. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides an adjustable extended-stem butterfly valve, which allows workers to quickly adjust the stem height of the butterfly valve body according to the on-site installation environment and requirements, thereby improving the work efficiency and effect of the workers in operating the butterfly valve, thereby enhancing the practicality.

[0005] The utility model discloses an adjustable extended stem butterfly valve, comprising a butterfly valve body and a valve stem, wherein the butterfly valve body is provided with a valve stem, and further comprises a connecting block, a first screw rod, a slide cylinder, two sets of bevel gears, a rotating rod, two sets of first slide blocks, a rotating handle and a connecting mechanism, wherein a plurality of sets of tooth blocks are evenly arranged on the top of the outer side of the valve stem, a groove is respectively arranged on the bottom and the top of the connecting block, and a plurality of sets of tooth blocks are evenly arranged on the inner wall of the groove at the bottom of the connecting block, the groove at the bottom of the connecting block is meshed and clamped with the tooth block and the top of the valve stem, and the bottom of the connecting block is rotatably connected with the top plate of the butterfly valve body, and the left and right ends of the groove at the top of the connecting block are respectively provided with A group of slide grooves, two groups of first sliding blocks are respectively slidably connected to the slide grooves, and the other ends of the two groups of first sliding blocks are respectively connected to one end of the slide cylinder, the bottom of the slide cylinder is threadedly connected to the first screw rod, and the bottom of the first screw rod is rotatably connected to the bottom of the top groove of the connecting block, a group of bevel gears are arranged at the bottom of the first screw rod, a group of reserved holes are arranged at the bottom of the right end of the top groove of the connecting block, the rotating rod is rotatably connected to the top groove of the connecting block through the reserved holes, and another group of bevel gears are arranged at the left end of the rotating rod, the group of bevel gears are meshed with the bevel gears at the bottom of the first screw rod, and the top of the slide cylinder is clamped by the connecting mechanism and the bottom of the rotating handle.

[0006] The utility model discloses an adjustable extended rod butterfly valve, the connection mechanism comprises a fixed block, two groups of arc-shaped clamping plates, two groups of second sliders, four groups of clamping blocks, two groups of second screw rods, two groups of threaded barrels and an adjusting component, the bottom of the fixed block is connected with the top of the slide barrel, the fixed block is provided with a working cavity, the bottom of the working cavity of the fixed block is evenly provided with two groups of slide grooves, and the two groups of second sliders are respectively slidably connected with the slide grooves, the tops of the two groups of second sliders are respectively connected with the bottom of a group of arc-shaped clamping plates, the left end and the right end of the working cavity of the fixed block are respectively provided with a group of reserved holes, and the two groups of reserved holes are respectively rotatably connected with a group of threaded barrels, One end of the two groups of threaded barrels is respectively provided with an adjustment component, and the other ends of the two groups of threaded barrels are respectively threadedly connected to a group of second screws, the other ends of the two groups of second screws are respectively connected to one end of a group of arc-shaped clamping plates, and the other ends of the two groups of arc-shaped clamping plates are respectively evenly provided with two groups of clamping blocks, the top of the working cavity of the fixed block is provided with a reserved hole, and the bottom of the rotating handle is inserted into the working cavity of the fixed block through the reserved hole, and two groups of clamping grooves are respectively evenly provided at the bottom of the left and right ends of the rotating handle, one end of the four groups of clamping blocks is respectively clamped in the clamping grooves of the rotating handle, and one end of the two groups of arc-shaped clamping plates is respectively tightly attached to one end of the rotating handle.

[0007] The utility model discloses an adjustable extended-stem butterfly valve, wherein the regulating assembly comprises two groups of rotating handles and two groups of connecting gears, one end of each of the two groups of threaded barrels is respectively provided with a group of connecting gears, one end of each of the two groups of rotating handles is respectively provided with a groove, and the inner walls of the grooves of the two groups of rotating handles are evenly provided with a plurality of groups of racks, the two groups of connecting gears are respectively engaged with the racks and clamped in the rotating handle grooves, and one end of each of the two groups of rotating handles is respectively rotatably connected to one end of a fixed block.

[0008] The utility model discloses an adjustable extended rod butterfly valve, which also comprises a protective shell and a protective cover. The bottom of the right end of the connecting block is provided with the protective shell, and the right end of the protective shell plate and the left end of the protective cover are threadedly clamped.

[0009] The utility model provides an adjustable extended-stem butterfly valve, which also comprises two groups of rubber pads. One end of the two groups of arc-shaped clamping plates is respectively provided with a group of rubber pads, and the other ends of the two groups of rubber pads are respectively tightly attached to one end of the rotating handle.

[0010] The utility model discloses an adjustable extended rod butterfly valve, which also comprises a rotating handle. The right end of the rotating rod is provided with the rotating handle.

[0011] The utility model discloses an adjustable extended-stem butterfly valve, which also comprises an annular handle, and a protective cover is provided with the annular handle.

[0012] The utility model discloses an adjustable extended-stem butterfly valve, which also includes an annular plate, two groups of positioning rings and a connecting rope. The outer side of a protective cover is rotatably connected to the inner side of the annular plate. A group of positioning rings is arranged on the top of the annular plate, and another group of positioning rings is arranged on the top of the right end of a connecting block. Both ends of the connecting rope are respectively connected to a group of positioning rings.

[0013] Compared with the prior art, the adjustable extended-stem butterfly valve of the utility model has the following beneficial effects: first, the staff rotates the rotating rod according to the on-site installation environment, and the first screw is driven to rotate through the meshing rotation of the two sets of bevel gears. The slide cylinder drives the rotating handle to slide through the two sets of first sliders and the connecting mechanism until it moves to a suitable height. Then the staff drives the valve stem to rotate by rotating the rotating handle, thereby controlling the opening and closing of the butterfly valve body. When the rotating handle is damaged, it can be disassembled and replaced through the connecting mechanism. According to the on-site installation environment and requirements, the staff can quickly adjust the rod height of the butterfly valve body, thereby improving the work efficiency and effect of the staff in operating the butterfly valve, and thus enhancing practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view structural cross-sectional schematic diagram of the utility model;

[0015] Figure 2 It is a front view structural schematic diagram of the utility model;

[0016] Figure 3 It is a partial structure enlarged schematic diagram of A of the utility model;

[0017] Figure 4 It is a partial structure enlarged schematic diagram of B of the utility model;

[0018] Markings in the attached figure: 1. Butterfly valve body; 2. Valve stem; 3. Connecting block; 4. First screw; 5. Slide cylinder; 6. Bevel gear; 7. Rotating rod; 8. First slider; 9. Rotating handle; 10. Fixed block; 11. Arc clamping plate; 12. Second slider; 13. Block; 14. Second screw; 15. Threaded cylinder; 16. Rotating handle; 17. Connecting gear; 18. Protective shell; 19. Protective cover; 20. Rubber pad; 21. Rotating handle; 22. Ring handle; 23. Ring plate; 24. Positioning ring; 25. Connecting rope. DETAILED DESCRIPTION

[0019] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0020] like Figures 1 to 4As shown, an adjustable extended stem butterfly valve of the utility model comprises a butterfly valve body 1 and a valve stem 2, the butterfly valve body 1 is provided with the valve stem 2, and also comprises a connecting block 3, a first screw 4, a slide cylinder 5, two sets of bevel gears 6, a rotating rod 7, two sets of first sliders 8, a rotating handle 9 and a connecting mechanism, a plurality of sets of tooth blocks are evenly arranged on the outer top of the valve stem 2, a groove is respectively arranged at the bottom and the top of the connecting block 3, and a plurality of sets of tooth blocks are evenly arranged on the inner wall of the groove at the bottom of the connecting block 3, the groove at the bottom of the connecting block 3 is meshed and clamped with the tooth block and the top of the valve stem 2, and the bottom of the connecting block 3 is rotatably connected to the top plate of the butterfly valve body 1, a group of slide grooves are respectively arranged at the left and right ends of the top groove of the connecting block 3, two sets of first sliders 8 are respectively slidably connected to the slide grooves, and the other ends of the two sets of first sliders 8 are respectively connected to one end of the slide cylinder 5, the bottom of the slide cylinder 5 is threadedly connected to the first screw 4, and the bottom of the first screw 4 is rotatably connected to the bottom of the groove at the top of the connecting block 3, a group of bevel gears 6 are arranged at the bottom of the first screw 4, and the connection A group of reserved holes is provided at the bottom of the right end of the top groove of the block 3, and the rotating rod 7 is rotatably connected through the reserved holes and the top groove of the connecting block 3, and another group of bevel gears 6 is provided at the left end of the rotating rod 7, which mesh with the bevel gears 6 at the bottom of the first screw 4, and the top of the slide 5 is clamped by the connecting mechanism and the bottom of the rotating handle 9; first, the staff rotates the rotating rod according to the on-site installation environment and other conditions, and the first screw is driven to rotate through the meshing rotation of the two groups of bevel gears, and the slide drives the rotating handle to slide through the two groups of first sliding blocks and the connecting mechanism until it moves to a suitable height, and then the staff drives the valve stem to rotate by rotating the rotating handle, thereby controlling the opening and closing of the butterfly valve body. When the rotating handle is damaged, it can be disassembled and replaced through the connecting mechanism. According to the on-site installation environment and requirements, the staff can quickly adjust the rod height of the butterfly valve body, thereby improving the work efficiency and effect of the staff in operating the butterfly valve, thereby enhancing practicality.

[0021] The utility model discloses an adjustable extended-stem butterfly valve, a connecting mechanism comprising a fixed block 10, two groups of arc-shaped clamping plates 11, two groups of second sliders 12, four groups of clamping blocks 13, two groups of second screw rods 14, two groups of threaded barrels 15 and an adjusting component, the bottom of the fixed block 10 is connected to the top of the slide barrel 5, the fixed block 10 is provided with a working chamber, the bottom of the working chamber of the fixed block 10 is evenly provided with two groups of slide grooves, and the two groups of second sliders 12 are respectively slidably connected to the slide grooves, the tops of the two groups of second sliders 12 are respectively connected to the bottoms of a group of arc-shaped clamping plates 11, a group of reserved holes are respectively provided at the left and right ends of the working chamber of the fixed block 10, and the two groups of reserved holes are respectively rotatably connected to a group of threaded barrels 15, one end of the two groups of threaded barrels 15 is respectively provided with an adjusting component, and the other ends of the two groups of threaded barrels 15 are respectively threadedly connected to a group of second screw rods 14, and the other ends of the two groups of second screw rods 14 are respectively connected to one end of a group of arc-shaped clamping plates 11 Then, two groups of card blocks 13 are evenly arranged at the other ends of the two groups of arc-shaped clamping plates 11, a reserved hole is arranged at the top of the working cavity of the fixed block 10, and the bottom of the rotating handle 9 is inserted into the working cavity of the fixed block 10 through the reserved hole, and two groups of card slots are evenly arranged at the bottom of the left and right ends of the rotating handle 9, one end of the four groups of card blocks 13 is respectively clamped in the card slots of the rotating handle 9, and one end of the two groups of arc-shaped clamping plates 11 is respectively tightly attached to one end of the rotating handle 9; the two groups of threaded barrels are rotated by adjusting the assembly, so that the two groups of second screws respectively drive a group of arc-shaped clamping plates to move through the second slider until one end of the two groups of arc-shaped clamping plates is respectively tightly attached to one end of the rotating handle, and at the same time, the four groups of card blocks are respectively clamped in the card slots of the rotating handle, and start to clamp and fix them, so that the staff can quickly clamp and fix the rotating handle, thereby improving the work efficiency and effect of its installation and disassembly, and thus enhancing practicality.

[0022] The utility model discloses an adjustable extended-stem butterfly valve, wherein the regulating assembly comprises two groups of rotating handles 16 and two groups of connecting gears 17, one end of each of the two groups of threaded barrels 15 is respectively provided with a group of connecting gears 17, one end of each of the two groups of rotating handles 16 is respectively provided with a groove, and the inner walls of the grooves of the two groups of rotating handles 16 are evenly provided with a plurality of groups of racks, the two groups of connecting gears 17 are respectively engaged with the racks and clamped in the grooves of the rotating handles 16, and one end of each of the two groups of rotating handles 16 is respectively rotatably connected with one end of a fixed block 10; the contact area is increased, so that the staff can rotate the threaded barrel more quickly by rotating the handles, thereby enhancing the practicality.

[0023] The utility model provides an adjustable extended-stem butterfly valve, which also includes a protective shell 18 and a protective cover 19. The protective shell 18 is arranged at the bottom of the right end of the connecting block 3, and the right end of the protective shell 18 and the left end of the protective cover 19 are threadedly clamped; the protective effect is improved, and the height cannot be adjusted due to external collisions and other factors, thereby enhancing the practicality.

[0024] The utility model provides an adjustable extended-stem butterfly valve, which also includes two groups of rubber pads 20. One end of each of the two groups of arc-shaped clamping plates 11 is provided with a group of rubber pads 20, and the other ends of the two groups of rubber pads 20 are respectively in close contact with one end of the rotating handle 9; the wear of the rotating handle caused by extrusion friction can be reduced, thereby enhancing practicality.

[0025] The utility model provides an adjustable extended-stem butterfly valve, which further comprises a rotating handle 21. The right end of the rotating rod 7 is provided with the rotating handle 21, which enables the staff to rotate the rotating rod more quickly, thereby enhancing the practicality.

[0026] The adjustable extended-stem butterfly valve of the utility model further comprises an annular handle 22, and the protective cover 19 is provided with the annular handle 22; the staff can rotate the protective cover more quickly, thus enhancing the practicality.

[0027] The utility model provides an adjustable extended-stem butterfly valve, which also includes an annular plate 23, two groups of positioning rings 24 and a connecting rope 25. The outer side of the protective cover 19 is rotatably connected to the inner side of the annular plate 23, and a group of positioning rings 24 is arranged on the top of the annular plate 23, and another group of positioning rings 24 is arranged on the top of the right end of the connecting block 3. The two ends of the connecting rope 25 are respectively connected to a group of positioning rings 24; the connection of the connecting rope and the positioning ring can prevent the protective cover from falling and being lost, thereby enhancing practicality.

[0028] The utility model discloses an adjustable extended-stem butterfly valve, which, when working, firstly, the staff turns the rotating rod by turning the handle according to the on-site installation environment, and the first screw is driven to rotate by the meshing rotation of the two sets of bevel gears, and the slide cylinder slides through the two sets of first sliders and the fixed block, so that the fixed block drives the rotating handle to slide until it moves to a suitable height, and then the staff drives the valve stem to rotate by turning the handle, so as to control the opening and closing of the butterfly valve body. When the rotating handle is damaged, etc., the two sets of threaded cylinders can be rotated by rotating the handle, so that the two sets of second screws respectively drive a set of arc clamping plates to move through the second slider until the four sets of blocks are respectively disengaged from the card slots at one end of the rotating handle, and then the staff can pull out the rotating handle for replacement. Before completing the above actions, it will first be moved to the position required by the user.

[0029] The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

[0030] The “first”, “second” and “third” mentioned in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An adjustable extended stem butterfly valve, comprising a butterfly valve body (1) and a valve stem (2), wherein the butterfly valve body (1) is provided with the valve stem (2), and is characterized in that: It also includes a connecting block (3), a first screw rod (4), a slide cylinder (5), two groups of bevel gears (6), a rotating rod (7), two groups of first slide blocks (8), a rotating handle (9) and a connecting mechanism. A plurality of groups of tooth blocks are evenly arranged on the outer top of the valve stem (2). The bottom and top of the connecting block (3) are respectively provided with grooves. The inner wall of the groove at the bottom of the connecting block (3) is evenly provided with a plurality of tooth blocks. The groove at the bottom of the connecting block (3) is engaged and clamped with the tooth block and the top of the valve stem (2). The bottom of the connecting block (3) is rotatably connected to the top plate of the butterfly valve body (1). A group of slide grooves are respectively arranged at the left and right ends of the groove at the top of the connecting block (3). The two groups of first slide blocks (8) are respectively slidably connected to the slide grooves. The other ends of the two groups of first sliding blocks (8) are respectively connected to one end of the slide cylinder (5), the bottom of the slide cylinder (5) is threadedly connected to the first screw rod (4), and the bottom of the first screw rod (4) is rotatably connected to the bottom of the top groove of the connecting block (3). A group of helical gears (6) are arranged at the bottom of the first screw rod (4), and a group of reserved holes are arranged at the right bottom of the top groove of the connecting block (3). The rotating rod (7) is rotatably connected to the top groove of the connecting block (3) through the reserved holes, and another group of helical gears (6) are arranged at the left end of the rotating rod (7). The group of helical gears (6) is meshed with the helical gears (6) at the bottom of the first screw rod (4), and the top of the slide cylinder (5) is clamped by the connecting mechanism and the bottom of the rotating handle (9).

2. An adjustable extended stem butterfly valve as claimed in claim 1, characterized in that: The connecting mechanism comprises a fixed block (10), two groups of arc-shaped clamping plates (11), two groups of second sliding blocks (12), four groups of clamping blocks (13), two groups of second screw rods (14), two groups of threaded barrels (15) and an adjusting component. The bottom of the fixed block (10) is connected to the top of the sliding barrel (5). The fixed block (10) is provided with a working cavity. Two groups of sliding grooves are evenly arranged at the bottom of the working cavity of the fixed block (10), and the two groups of second sliding blocks (12) are respectively slidably connected to the sliding grooves. The tops of the two groups of second sliding blocks (12) are respectively connected to the bottom of a group of arc-shaped clamping plates (11). A group of reserved holes are respectively arranged at the left and right ends of the working cavity of the fixed block (10), and the two groups of reserved holes are respectively rotatably connected to a group of threaded barrels (15). The two groups of threaded barrels (15) are respectively rotatably connected to the two groups of threaded barrels (15). 5) one end is respectively provided with an adjustment component, and the other ends of the two groups of threaded barrels (15) are respectively threadedly connected to a group of second screw rods (14), the other ends of the two groups of second screw rods (14) are respectively connected to one end of a group of arc-shaped clamping plates (11), and the other ends of the two groups of arc-shaped clamping plates (11) are respectively evenly provided with two groups of clamping blocks (13), the top of the working cavity of the fixed block (10) is provided with a reserved hole, and the bottom of the rotating handle (9) is inserted into the working cavity of the fixed block (10) through the reserved hole, and the bottom of the left and right ends of the rotating handle (9) are respectively evenly provided with two groups of clamping grooves, one end of the four groups of clamping blocks (13) is respectively clamped with the clamping grooves of the rotating handle (9), and one end of the two groups of arc-shaped clamping plates (11) is respectively tightly attached to one end of the rotating handle (9).

3. The adjustable extended stem butterfly valve according to claim 2, characterized in that: The adjustment assembly comprises two groups of rotating handles (16) and two groups of connecting gears (17), one end of each of the two groups of threaded barrels (15) is provided with a group of connecting gears (17), one end of each of the two groups of rotating handles (16) is provided with a groove, and the inner walls of the grooves of the two groups of rotating handles (16) are evenly provided with a plurality of groups of racks, the two groups of connecting gears (17) are respectively engaged with the racks and clamped in the grooves of the rotating handles (16), and one end of each of the two groups of rotating handles (16) is rotatably connected to one end of a fixed block (10).

4. An adjustable extended stem butterfly valve as claimed in claim 3, characterized in that: It also includes a protective shell (18) and a protective cover (19). The bottom of the right end of the connecting block (3) is provided with a protective shell (18), and the right end of the protective shell (18) plate and the left end of the protective cover (19) are threadedly clamped.

5. The adjustable extended stem butterfly valve according to claim 4, characterized in that: It also comprises two groups of rubber pads (20), one end of each of the two groups of arc-shaped clamping plates (11) is provided with a group of rubber pads (20), and the other ends of the two groups of rubber pads (20) are respectively in close contact with one end of the rotating handle (9).

6. The adjustable extended stem butterfly valve according to claim 5, characterized in that: It also comprises a rotating handle (21), and the right end of the rotating rod (7) is provided with the rotating handle (21).

7. An adjustable extended stem butterfly valve as claimed in claim 6, characterized in that: It also comprises an annular handle (22), and the protective cover (19) is provided with the annular handle (22).

8. The adjustable extended stem butterfly valve according to claim 7, characterized in that: The invention also comprises an annular plate (23), two sets of positioning rings (24) and a connecting rope (25); the outer side of the protective cover (19) and the inner side of the annular plate (23) are rotatably connected, and a top of the annular plate (23) is provided with A group of positioning rings (24), another group of positioning rings (24) is arranged on the top of the right end of the connecting block (3), The two ends of the connecting rope (25) are respectively connected to a group of positioning rings (24).

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