Full-sealing triple-eccentric hard sealing butterfly valve of water system

Abstract

The utility model discloses a water system full-sealing triple-eccentric hard sealing butterfly valve, which relates to the technical field of sealing butterfly valves and comprises a valve body, an extension connector is arranged at the top of the valve body, and the top of the valve body is fixedly connected with a control device through the extension connector and a bolt. The butterfly valve has the advantages that the top of the valve shaft is fixedly connected with the driving gear, when the butterfly plate is opened or closed by rotating the turntable, the valve shaft rotates to drive the driving gear to rotate, and the driving gear drives the toothed plate to slide, so that the rotating angle of the butterfly valve can be judged by pointing the specific scales of the scale marks through the scale arrow; and when the dish plate rotates by 90 degrees, an extrusion block extrudes a touch switch to enable an indicator light to flicker to remind a worker that the dish plate rotates by 90 degrees at the moment and is in a maximum open state, so that the use experience of the device can be greatly improved, the worker can be visually helped to judge the rotation angle of the dish plate, and the practicability of the device is improved. And the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sealed butterfly valves, in particular to a fully sealed three-eccentric hard-sealed butterfly valve for a water system. Background Art

[0002] The butterfly valve, also known as the flap valve, is a simple regulating valve that can be used for the on-off control of low-pressure pipeline media. The butterfly valve refers to a disc of a closing member that rotates around the valve shaft to achieve opening and closing.

[0003] It is difficult to visually observe the rotation angle of the valve shaft when the existing butterfly valve rotates the valve shaft, and thus it is impossible to determine the angle of the disc plate, resulting in low adaptability of the butterfly valve and low working efficiency. For this reason, we propose a fully sealed three-eccentric hard-sealed butterfly valve for water systems. Utility Model Content

[0004] The utility model aims to provide a fully sealed three-eccentric hard-sealed butterfly valve for a water system.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fully sealed three-eccentric hard-sealed butterfly valve for a water system, comprising a valve body, an extended connecting port is provided on the top of the valve body, a control device is fixedly connected to the top of the valve body through the extended connecting port and bolts, a valve shaft is provided inside the control device, a worm gear and a driving gear are fixedly connected to the surface of the valve shaft, the driving gear is located on the top of the worm gear, a shell is provided on the outside of the control device, two fixed sliders are fixedly connected to the top of the shell, a same tooth plate is slidably connected between the two fixed sliders, the back side of the tooth plate is meshed with the surface of the driving gear, scale lines are provided on the front side of the tooth plate, extrusion blocks are fixedly connected to both sides of the bottom surface of the tooth plate, touch switches matching the extrusion blocks are fixedly connected to the left and right outer surfaces of the shell, and the touch switch is electrically connected to an indicator light and a micro power supply.

[0006] As a further solution of the utility model: the indicator light and the micro power supply are both fixedly connected to the top surface of the housing, and the micro power supply is electrically connected to the indicator light.

[0007] As a further solution of the utility model: the extrusion block and the touch switch are at the same horizontal height, a scale arrow is opened at the center of the top surface of the shell, and the scale arrow is located directly below the scale line.

[0008] As a further solution of the utility model: movable holes are opened on the bottom surface, the back surface and the top surface of the shell, the inner walls of the movable holes are fixedly connected with bearings, and the top end of the valve shaft passes through the top of the control device.

[0009] As a further solution of the utility model: the number of the bearings is three, a worm is movably connected inside the rear bearing, the surface of the worm is meshingly connected with the surface of the worm wheel, the front end of the worm is fixedly connected to a limiting ring, and the outer surface of the rear end of the worm is fixedly connected to a turntable.

[0010] As a further solution of the utility model: the inner bottom wall of the outer shell is fixedly connected with a main fixed half ring, the top surface of the main fixed half ring is fixedly connected with a slave fixed half ring by a fixing screw, the main fixed half ring and the slave fixed half ring are clamped with the worm, and the front sides of the main fixed half ring and the slave fixed half ring are both in contact with the surface of the limit ring.

[0011] As a further solution of the utility model: a disc plate and a valve seat are arranged inside the valve body, the valve seat is located on the outside of the disc plate, the surface of the valve seat is fixedly connected to the inner wall of the valve body, the surface of the disc plate is tightly fitted to the inner wall of the valve seat, and the front side of the disc plate is fixedly connected to two connecting blocks, and the two connecting blocks are fixedly connected to the outer surface of the bottom of the valve shaft.

[0012] By adopting the above technical solution, compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model has a driving gear fixedly connected to the top of the valve shaft. When the disc plate is opened or closed by rotating the turntable, the rotation of the valve shaft will drive the driving gear to rotate, and the driving gear will drive the tooth plate to slide, so that the rotation angle of the disc valve can be judged by the specific scale of the scale line pointed by the scale arrow, which greatly improves the practicality of the device. When the disc plate rotates 90 degrees, the squeezing block will squeeze the touch switch to make the indicator light flash, reminding the staff that the disc plate has rotated 90 degrees and is in the maximum open state, which can greatly improve the use experience of the device, and can intuitively help the staff to judge the rotation angle of the disc plate, thereby improving work efficiency.

[0014] 2. The utility model designs movable holes on the bottom, back and top surfaces of the shell, and fixedly connects bearings in the movable holes. Such a design enables the valve shaft to move flexibly in the movable holes, reduces the friction resistance of the valve, and extends the service life of the valve. At the same time, the setting of the bearings also reduces the noise and vibration during the movement of the valve, and improves the stability and reliability of the valve. Overall, this design not only increases the service life of the valve, but also improves the operating effect of the valve, meets the requirements of energy conservation and environmental protection, and has positive significance for the normal operation of the water system.

[0015] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and study, or may be taught from the practice of the present invention to some extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall three-dimensional schematic diagram of an embodiment of the utility model;

[0017] Figure 2 It is a three-dimensional schematic diagram of the overall rear side in the embodiment of the utility model;

[0018] Figure 3 This is an overall front view schematic diagram of an embodiment of the utility model;

[0019] Figure 4 It is a partial three-dimensional schematic diagram of the control device in the embodiment of the utility model;

[0020] Figure 5 It is a partial three-dimensional schematic diagram of the interior of the control device in the embodiment of the utility model.

[0021] In the figure: 1. valve body; 11. extension connection port; 2. control device; 21. housing; 211. fixed slider; 22. touch switch; 23. indicator light; 24. micro power supply; 3. valve shaft; 31. worm gear; 32. drive gear; 4. tooth plate; 41. scale line; 42. extrusion block; 5. worm; 51. limit ring; 52. turntable; 61. main fixed half ring; 62. slave fixed half ring; 7. disc plate; 701. connection block; 71. valve seat. DETAILED DESCRIPTION

[0022] The specific implementation modes of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation modes is used to help understand the present invention, but does not constitute a limitation to the present invention.

[0023] In addition, the technical features involved in each embodiment of the present invention described below can be combined with each other as long as there is no conflict between them.

[0024] The utility model discloses a fully sealed three-eccentric hard-sealed butterfly valve for a water system, comprising a valve body 1, an extended connection port 11 is arranged on the top of the valve body 1, a control device 2 is fixedly connected to the top of the valve body 1 through the extended connection port 11 and bolts, a valve shaft 3 is arranged inside the control device 2, a worm gear 31 and a driving gear 32 are fixedly connected to the surface of the valve shaft 3, the driving gear 32 is located on the top of the worm gear 31, a shell 21 is arranged on the outside of the control device 2, two fixed sliders 211 are fixedly connected to the top of the shell 21, a same tooth plate 4 is slidably connected between the two fixed sliders 211, the back of the tooth plate 4 is meshedly connected to the surface of the driving gear 32, a scale line 41 is opened on the front of the tooth plate 4, both sides of the bottom surface of the tooth plate 4 are fixedly connected to extrusion blocks 42, the left and right outer surfaces of the shell 21 are fixedly connected to touch switches 22 matched with the extrusion blocks 42, and the touch switch 22 is electrically connected to an indicator light 23 and a micro power supply 24;

[0025] In one embodiment of the present invention, the indicator light 23 and the micro power source 24 are both fixedly connected to the top surface of the housing 21 , and the micro power source 24 is electrically connected to the indicator light 23 .

[0026] In one embodiment of the present invention, the extrusion block 42 and the touch switch 22 are at the same level, a scale arrow is provided at the center of the top surface of the housing 21 , and the scale arrow is located directly below the scale line 41 .

[0027] In one embodiment of the present invention: movable holes are opened on the bottom, back and top surfaces of the housing 21 , bearings are fixedly connected to the inner walls of the movable holes, and the top end of the valve shaft 3 passes through the top of the control device 2 .

[0028] In one embodiment of the present invention: the number of bearings is three, a worm 5 is movably connected inside the rear bearing, the surface of the worm 5 is meshed with the surface of the worm wheel 31, the front end of the worm 5 is fixedly connected to a limit ring 51, and the outer surface of the rear end of the worm 5 is fixedly connected to a turntable 52.

[0029] In one embodiment of the utility model: a main fixed half ring 61 is fixedly connected to the inner bottom wall of the outer shell 21, and a slave fixed half ring 62 is fixedly connected to the top surface of the main fixed half ring 61 by fixing screws, the main fixed half ring 61 and the slave fixed half ring 62 are clamped with the worm 5, and the front sides of the main fixed half ring 61 and the slave fixed half ring 62 are both in contact with the surface of the limit ring 51.

[0030] In one embodiment of the utility model: a disc plate 7 and a valve seat 71 are provided inside the valve body 1, the valve seat 71 is located on the outside of the disc plate 7, the surface of the valve seat 71 is fixedly connected to the inner wall of the valve body 1, the surface of the disc plate 7 is tightly fitted to the inner wall of the valve seat 71, and two connecting blocks 701 are fixedly connected to the front of the disc plate 7, and the two connecting blocks 701 are fixedly connected to the outer surface of the bottom of the valve shaft 3.

[0031] Example 1, please refer to the attached Figure 1 -Attached Figure 5 , touch switches 22 are provided on the left and right sides of the housing 21, and extrusion blocks 42 are provided on both sides of the bottom surface of the tooth plate 4, so that no matter whether the rotating disk rotates to the left or right, and then drives the disc plate 7 to rotate clockwise or counterclockwise, the setting of the touch switch 22 and the extrusion block 42 can remind the staff that the disc plate 7 has rotated 90 degrees, where 90 degrees includes 90 degrees clockwise and 90 degrees counterclockwise. A sealing ring is provided on the surface of the disc plate 7. The sealing ring is completely made of metal material, and there is no interlayer made of non-metallic materials such as PTFE, graphite, rubber asbestos board, etc. When the disc plate 7 is fully opened or partially opened, the sealing ring will not be damaged due to the scouring of high-speed fluid, thereby greatly improving the service life of the butterfly valve.

[0032] Example 2, please refer to the attached Figure 1 -Attached Figure 5 The scale line 41 is opened on the front of the tooth plate 4, and the scale line 41 is symmetrical with respect to the front of the tooth plate 4. The scale on the right side of the scale line 41 is positive, and the scale on the left side of the scale line 41 is negative. The absolute values ​​of the two scale indications at the same position of the center point of the entire scale line 41 are equal.

[0033] Specifically, a driving gear 32 is fixedly connected to the top of the valve shaft 3. When the disc plate 7 is opened or closed by rotating the turntable 52, the rotation of the valve shaft 3 will drive the driving gear 32 to rotate, and the driving gear 32 will drive the tooth plate 4 to slide, so that the rotation angle of the disc valve can be judged by the specific scale of the scale line 41 pointed to by the scale arrow, thereby greatly improving the practicality of the device, and when the disc plate 7 is rotated 90 degrees, the squeezing block 42 will squeeze the touch switch 22 and make the indicator light 23 flash, reminding the staff that the disc plate 7 has rotated 90 degrees and is in the maximum open state, thereby greatly improving the use experience of the device, and can intuitively help the staff to judge the rotation angle of the disc plate 7, thereby improving work efficiency.

[0034] Specifically, by designing movable holes on the bottom, back and top surfaces of the shell 21 and fixing bearings in the movable holes, such a design enables the valve shaft 3 to move flexibly in the movable holes, thereby reducing the friction resistance of the valve and extending the service life of the valve. At the same time, the setting of the bearings also reduces the noise and vibration during the movement of the valve, and improves the stability and reliability of the valve. Overall, this design not only improves the service life of the valve, but also improves the operating effect of the valve, meets the requirements of energy conservation and environmental protection, and has positive significance for the normal operation of the water system.

[0035] Working principle:

[0036] When the valve needs to be controlled to rotate, the staff needs to rotate the turntable 52 clockwise or counterclockwise. When the turntable 52 rotates, the worm 5 is driven to rotate, and the rotation of the worm 5 drives the worm wheel 31 to rotate. The rotation of the worm wheel 31 drives the valve shaft 3 to rotate, and then the disc plate 7 is driven to rotate, so that the size of the water flow can be controlled. At the same time, when the valve shaft 3 rotates, it will drive the driving gear 32 to rotate, and the driving gear 32 drives the tooth plate 4 to move. The movement of the tooth plate 4 will drive the distance between the scale line 41 at the top of the tooth plate 4 and the scale arrow to change, and then the angle of the disc plate 7 at this time can be judged by the scale line 41, and an extrusion block 42 is provided at the bottom of the tooth plate 4. When the bottom plate is rotated 90 degrees clockwise or counterclockwise, one of the extrusion blocks 42 just contacts with the touch switch 22. At this time, the indicator light 23 will flash to remind the staff that it is in the maximum flow rate state at this time. At this point, the entire workflow ends.

[0037] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 should not be understood as limiting the scope of protection of the present invention.

[0039] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above-mentioned utility model, the details of its power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by technical personnel in this field.

[0040] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0041] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments.

[0042] For those skilled in the art, various changes, modifications, substitutions and variations can be made to these implementations without departing from the principles and spirit of the present invention, and they still fall within the protection scope of the present invention.

Claims

1. A fully sealed three-eccentric hard-sealed butterfly valve for a water system, comprising a valve body (1), characterized in that: The top of the valve body (1) is provided with an extension connection port (11), and the top of the valve body (1) is fixedly connected to a control device (2) via the extension connection port (11) and bolts, a valve shaft (3) is provided inside the control device (2), a worm gear (31) and a driving gear (32) are fixedly connected to the surface of the valve shaft (3), and the driving gear (32) is located on the top of the worm gear (31), and a housing (21) is provided outside the control device (2), and two fixed sliders (21) are fixedly connected to the top of the housing (21). 1), a same tooth plate (4) is slidably connected between the two fixed sliders (211), the back of the tooth plate (4) is meshed with the surface of the driving gear (32), the front of the tooth plate (4) is provided with a scale line (41), both sides of the bottom surface of the tooth plate (4) are fixedly connected with an extrusion block (42), the left and right outer surfaces of the housing (21) are fixedly connected with a touch switch (22) matched with the extrusion block (42), and the touch switch (22) is electrically connected with an indicator light (23) and a micro power supply (24).

2. The fully sealed three-eccentric hard-sealed butterfly valve for water system according to claim 1, characterized in that: The indicator light (23) and the micro power source (24) are both fixedly connected to the top surface of the housing (21), and the micro power source (24) is electrically connected to the indicator light (23).

3. The fully sealed three-eccentric hard-sealed butterfly valve for water system according to claim 1, characterized in that: The squeezing block (42) and the touch switch (22) are at the same level, and a scale arrow is provided at the center of the top surface of the housing (21), and the scale arrow is located directly below the scale line (41).

4. The fully sealed three-eccentric hard-sealed butterfly valve for water system according to claim 1, characterized in that: The bottom surface, the back surface and the top surface of the housing (21) are all provided with movable holes, the inner walls of the movable holes are fixedly connected with bearings, and the top end of the valve shaft (3) passes through the top of the control device (2).

5. The fully sealed three-eccentric hard-sealed butterfly valve for water system according to claim 4, characterized in that: The number of the bearings is three, a worm (5) is movably connected inside the rear bearing, the surface of the worm (5) is meshingly connected with the surface of the worm wheel (31), the front end of the worm (5) is fixedly connected to a limit ring (51), and the outer surface of the rear end of the worm (5) is fixedly connected to a rotating disk (52).

6. The fully sealed three-eccentric hard-sealed butterfly valve for water system according to claim 5, characterized in that: A main fixing half ring (61) is fixedly connected to the inner bottom wall of the housing (21); a slave fixing half ring (62) is fixedly connected to the top surface of the main fixing half ring (61) via fixing screws; the main fixing half ring (61) and the slave fixing half ring (62) are clamped with the worm (5); and the front surfaces of the main fixing half ring (61) and the slave fixing half ring (62) are both in contact with the surface of the limit ring (51).

7. The fully sealed three-eccentric hard-sealed butterfly valve for water system according to claim 1, characterized in that: A disc plate (7) and a valve seat (71) are provided inside the valve body (1); the valve seat (71) is located outside the disc plate (7); the surface of the valve seat (71) is fixedly connected to the inner wall of the valve body (1); the surface of the disc plate (7) is tightly fitted to the inner wall of the valve seat (71); two connecting blocks (701) are fixedly connected to the front of the disc plate (7); and the two connecting blocks (701) are fixedly connected to the outer surface of the bottom of the valve shaft (3).

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