Butterfly valve with stable structure

Abstract

The utility model relates to the technical field of butterfly valves, and discloses a butterfly valve with a stable structure, which comprises a valve body and an actuator arranged at the top of the valve body, a rotating rod for driving the valve body to rotate is mounted on the actuator, a rotating wheel is fixedly mounted at the right end of the rotating rod, a clamping component is mounted on the outer side of the rotating rod, and a shell is attached to the bottom of the valve body. Through mutual cooperation of a rotary knob, a worm, a worm gear, a screw rod, a threaded sleeve, a connecting plate, a limiting telescopic rod, a moving rod and arc-shaped bearing blocks, the distance between the arc-shaped bearing blocks can be adjusted, and therefore the effects of clamping, supporting and bearing of the valve body are achieved; and through mutual cooperation of supporting legs, a movable block, an L-shaped insertion plate, a T-shaped rod and a reset spring, the height of the shell can be adjusted, the height of an arc-shaped bearing block can be adjusted according to actual needs, the installation requirements of valve bodies at different heights are met, and operation is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly valves, in particular to a butterfly valve with a stable structure. Background Art

[0002] A butterfly valve, also known as a flap valve, is a regulating valve with a simple structure. It 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 axis to achieve opening and closing. The valve 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, and mainly plays a role of cutting off and throttling in pipelines.

[0003] When the existing butterfly valves with stable structures are in use, most of the valve plate switches are driven by a rotary wheel, but the rotary wheel is not locked after being driven, which makes it easy for the butterfly valve to be accidentally opened after being accidentally touched. In addition, the valve body is usually connected between two pipes and set in the air without supporting components, which leads to a break between the valve body and the pipe, causing leakage of the conveyed fluid and poor use effect.

[0004] Therefore, we propose a butterfly valve with a stable structure to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a butterfly valve with a stable structure to solve the problems raised by the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a butterfly valve with a stable structure, comprising a valve body and an actuator arranged at the top of the valve body, a rotating rod for driving the valve body to rotate is installed on the actuator, a rotating wheel is fixedly installed on the right end of the rotating rod, and a clamping assembly is installed on the outer side of the rotating rod, an outer shell is fitted on the bottom of the valve body, a supporting assembly is installed below the middle of the bottom of the outer shell, and an adjusting assembly is fixedly installed on the bottom of the outer shell near the left and right sides.

[0007] Preferably, the clamping assembly includes a turntable fixedly sleeved on the outside of the rotating rod and a plurality of clamping grooves equidistantly arranged on the outside of the turntable, a clamping rod is inserted into the inner cavity of the upper clamping groove, and a sliding plate is fixedly installed on the upper end of the clamping rod, the left side of the sliding plate is slidably installed on the actuator, a flat plate is provided above the top of the sliding plate, the left side of the flat plate is fixedly installed on the actuator, and a threaded rod is installed through a thread on the flat plate, and the lower end of the threaded rod is movably installed on the sliding plate.

[0008] Preferably, a hand wheel is fixedly mounted on the upper end of the threaded rod.

[0009] Preferably, the supporting assembly includes a knob arranged at the lower middle part of the bottom of the shell and a worm fixedly installed at the middle part of the top of the knob, the top end of the worm movably extends through the inner cavity of the shell, and the output end of the worm is meshed with a worm wheel, a movable rod is fixedly installed through the middle part of the worm wheel, screws are fixedly installed at the left and right ends of the movable rod, respectively, the opposite ends of the screw are movably installed on the inner wall of the inner cavity of the shell, and the external threads of the screw are arranged in opposite directions, and threaded sleeves are threadedly installed on the outer sides of the screw, and moving rods are fixedly installed at the middle part of the top of the threaded sleeve, and moving openings are respectively opened at the top of the shell near the left and right sides, the upper ends of the moving rods respectively pass through the inner cavities of adjacent moving openings, and arc-shaped supporting blocks are respectively fixedly installed, and the tops of the arc-shaped supporting blocks are respectively fitted to the outer sides of the valve body.

[0010] Preferably, a connecting plate is fixedly mounted on the bottom of the threaded sleeve, and a limiting telescopic rod is fixedly mounted on the opposite side of the connecting plate, and the opposite end of the limiting telescopic rod is fixedly mounted on the inner wall of the inner cavity of the shell.

[0011] Preferably, the adjustment assembly includes support legs fixedly installed on the bottom of the shell near the left and right sides and movable blocks movably mounted on the outside of the support legs near the middle, and L-shaped plug plates are fixedly installed on the four sides of the movable block near the bottom, and through holes are opened on the opposite side of the movable block near the top, and T-shaped rods are movably installed through the inner cavities of the through holes, and a plurality of positioning grooves are opened at equal intervals on the opposite side of the movable block, and opposite ends of the T-shaped rods are respectively inserted into the inner cavities of adjacent positioning grooves.

[0012] Preferably, the outer sides of the T-shaped rods are respectively sleeved with return springs, and the two ends of the return springs are respectively fixedly mounted on the adjacent T-shaped rods and the movable block.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. Through the mutual cooperation among the turntable, clamping rod, sliding plate, flat plate, threaded rod and hand wheel, the wheel can be clamped and positioned to avoid accidental contact and affect the opening and closing of the valve body. It solves the problem that the wheel is not locked after driving, which leads to accidental contact and easy opening of the butterfly valve, and the use effect is good.

[0015] 2. Through the mutual cooperation among the knob, worm, worm wheel, screw, threaded sleeve, connecting plate, limit telescopic rod, movable rod and arc-shaped supporting block, the spacing between the arc-shaped supporting blocks can be adjusted, thereby playing a clamping and supporting role for the valve body. In addition, through the mutual cooperation among the supporting legs, movable blocks, L-shaped plug plates, T-shaped rods and reset springs, the height of the shell can be adjusted, which is conducive to adjusting the height of the arc-shaped supporting block according to actual needs, meeting the installation requirements of valve bodies at different heights, and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall cross-sectional view of the utility model;

[0017] Figure 2 It is an overall diagram of the utility model;

[0018] Figure 3 For the utility model Figure 1 Enlarged view of point A in the middle;

[0019] Figure 4 For the utility model Figure 1 Enlarged view of point B in the middle.

[0020] In the figure: 1. valve body; 2. actuator; 3. rotating wheel; 4. clamping assembly; 41. turntable; 42. clamping rod; 43. sliding plate; 44. flat plate; 45. threaded rod; 451. hand wheel; 5. housing; 6. supporting assembly; 61. knob; 62. worm; 63. worm wheel; 64. screw; 65. threaded sleeve; 651. connecting plate; 652. limiting telescopic rod; 66. moving rod; 67. arc-shaped supporting block; 7. adjusting assembly; 71. supporting leg; 72. movable block; 73. L-shaped plug plate; 74. T-shaped rod; 741. reset spring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0022] See also Figure 1-4A butterfly valve with stable structure comprises a valve body 1 and an actuator 2 arranged at the top of the valve body 1, a rotating rod for driving the valve body 1 to rotate is installed on the actuator 2, a rotating wheel 3 is fixedly installed on the right end of the rotating rod, and a clamping assembly 4 is installed on the outer side of the rotating rod, a shell 5 is attached to the bottom of the valve body 1, a supporting assembly 6 is installed below the middle of the bottom of the shell 5, and an adjusting assembly 7 is fixedly installed near the left and right sides of the bottom of the shell 5, the setting of the clamping assembly 4 plays a role in limiting the position of the rotating rod, and the mutual cooperation of the supporting assembly 6 and the adjusting assembly 7 plays a role in supporting the valve body 1.

[0023] The clamping assembly 4 includes a turntable 41 fixedly sleeved on the outside of the rotating rod and a plurality of clamping grooves equidistantly arranged on the outside of the turntable 41, a clamping rod 42 is inserted into the inner cavity of the upper clamping groove, and a sliding plate 43 is fixedly installed on the upper end of the clamping rod 42, the left side of the sliding plate 43 is slidably installed on the actuator 2, a flat plate 44 is arranged above the top of the sliding plate 43, the left side of the flat plate 44 is fixedly installed on the actuator 2, and a threaded rod 45 is threadedly installed on the flat plate 44, and the lower end of the threaded rod 45 is movably installed on the sliding plate 43, which plays a role in clamping and positioning the rotating rod to avoid accidental collision of the rotating wheel 3 and affecting the opening and closing of the valve body 1.

[0024] A hand wheel 451 is fixedly mounted on the upper end of the threaded rod 45 to facilitate driving the threaded rod 45 to rotate.

[0025] In this embodiment: when in use, the opening and closing of the valve body 1 can be controlled by the setting of the rotating wheel 3, and the hand wheel 451 can be rotated when not driven. When the hand wheel 451 is rotated, the threaded rod 45 is driven to rotate, and when the threaded rod 45 is rotated, the sliding plate 43 is driven to move downward, and when the sliding plate 43 moves downward, the clamping rod 42 is driven to move downward, so that it can be inserted into the inner cavity of one of the clamping grooves. At this time, the rotating rod can be clamped and positioned, thereby preventing the rotating wheel 3 from rotating due to accidental contact. Example

[0026] This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 1-3The supporting assembly 6 includes a knob 61 arranged at the lower middle of the bottom of the housing 5 and a worm 62 fixedly installed at the middle of the top of the knob 61. The top of the worm 62 movably penetrates and extends into the inner cavity of the housing 5, and the output end of the worm 62 is meshed with a worm wheel 63. A movable rod is fixedly installed at the middle of the worm wheel 63. The left and right ends of the movable rod are respectively fixedly installed with screws 64. The opposite ends of the screws 64 are respectively movably installed on the inner wall of the inner cavity of the housing 5, and the external threads of the screws 64 are arranged in opposite directions. The screws 64 are arranged in opposite directions. A threaded sleeve 65 is threadedly installed on the outer side thereof, a moving rod 66 is fixedly installed on the middle part of the top of the threaded sleeve 65, and moving openings are respectively opened on the top of the outer shell 5 near the left and right sides, the upper ends of the moving rods 66 pass through the inner cavities of adjacent moving openings, and are respectively fixedly installed with arc-shaped supporting blocks 67, the tops of the arc-shaped supporting blocks 67 are respectively attached to the outer sides of the valve body 1, which can drive the arc-shaped supporting blocks 67 on both sides to move relative to each other, thereby playing a role in clamping and supporting the valve body 1, which is beneficial to improving the stability of the connection between the valve body 1 and the pipeline.

[0027] A connecting plate 651 is fixedly installed at the bottom of the threaded sleeve 65, and a limiting telescopic rod 652 is fixedly installed on the opposite side of the connecting plate 651. The opposite end of the limiting telescopic rod 652 is fixedly installed on the inner wall of the inner cavity of the shell 5, which plays a guiding and limiting role when the threaded sleeve 65 moves, and has better stability.

[0028] The adjustment assembly 7 includes support legs 71 respectively fixedly installed at the bottom of the shell 5 near the left and right sides and movable blocks 72 respectively movably mounted on the outside of the support legs 71 near the middle, and L-shaped plug plates 73 are respectively fixedly installed on the four sides of the movable block 72 near the bottom, and a through hole is respectively opened near the top on the opposite side of the movable block 72, and a T-shaped rod 74 is movably installed through the inner cavity of the through hole, and a plurality of positioning grooves are respectively opened at equal intervals on the opposite side of the movable block 72, and the opposite ends of the T-shaped rod 74 are respectively inserted in the inner cavity of the adjacent positioning groove, which is conducive to adjusting the height of the shell 5 according to actual needs, and has high flexibility.

[0029] The outer sides of the T-shaped rods 74 are respectively sleeved with return springs 741 , and the two ends of the return springs 741 are respectively fixedly mounted on the adjacent T-shaped rods 74 and the movable block 72 , which is beneficial to the movement and restoration of the T-shaped rods 74 .

[0030] In this embodiment, after the valve body 1 is connected to the pipeline, it can be clamped and supported. By inserting a plurality of L-shaped plug plates 73 into the soil, the housing 5 is supported by the two support legs 71. When the height of the support legs 71 needs to be adjusted, the two T-shaped rods 74 are pulled to move relative to each other, so that they move relative to each other under the action of the adjacent return springs 741, thereby moving away from the inner cavity of the adjacent positioning groove. In addition, the height of the housing 5 can be adjusted by adjusting the lifting and lowering of the support legs 71 on the movable block 72. After the adjustment is completed, the pulled T-shaped rod 74 can be released to make it move relative to the adjacent return springs 741. 41 restores under the action of the rebound force, so that the T-shaped rod 74 continues to be inserted into the inner cavity of the adjacent positioning groove. After the adjustment is completed, the knob 61 can be rotated. When the knob 61 is rotated, the worm 62 is driven to rotate. When the worm 62 is rotated, the movable rod is driven to rotate through the worm gear 63. When the movable rod is rotated, the screw rods 64 on both sides are driven to rotate. When the screw rods 64 are rotated, the adjacent threaded sleeves 65 are driven to move relatively. When the threaded sleeves 65 move relatively, the arc-shaped supporting blocks 67 are driven to move relatively through the adjacent moving rods 66, thereby realizing the clamping support of the valve body 1, which is beneficial to improving the stability of the connection.

[0031] Working principle: When in use, the opening and closing of the valve body 1 can be controlled by the setting of the rotating wheel 3, and the hand wheel 451 can be turned when not driven. When the hand wheel 451 rotates, it will drive the threaded rod 45 to rotate. When the threaded rod 45 rotates, it will drive the sliding plate 43 to move downward, and when the sliding plate 43 moves downward, it will drive the clamping rod 42 to move downward, so that it can be inserted into the inner cavity of one of the clamping grooves. At this time, the rotating rod can be clamped and positioned, thereby preventing the rotating wheel 3 from rotating due to accidental collision. When the valve body 1 is connected to the pipeline, it can be clamped and supported. By inserting a number of L-shaped plug plates 73 into the soil, the housing 5 is supported by two supporting legs 71. When the height of the supporting legs 71 needs to be adjusted, the two T-shaped rods 74 are pulled to move relative to each other so that they are in the adjacent reset springs 741. The movable rod 74 is inserted into the inner cavity of the adjacent positioning groove, and the knob 61 can be rotated when the knob 61 is rotated. When the knob 61 is rotated, the worm 62 is driven to rotate. When the worm 62 is rotated, the movable rod 74 is driven to rotate through the worm gear 63. When the movable rod is rotated, the screw rods 64 on both sides are driven to rotate. When the screw rods 64 are rotated, the adjacent threaded sleeves 65 are driven to move relative to each other. When the threaded sleeves 65 move relative to each other, the arc-shaped supporting block 67 is driven to move relative to each other through the adjacent moving rod 66, thereby realizing the clamping support of the valve body 1, which is beneficial to improving the stability of the connection.

[0032] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A butterfly valve with a stable structure, comprising a valve body (1) and an actuator (2) arranged at the top of the valve body (1), characterized in that: The actuator (2) is provided with a rotating rod for driving the valve body (1) to rotate, a rotating wheel (3) is fixedly mounted on the right end of the rotating rod, and a clamping assembly (4) is mounted on the outer side of the rotating rod, a housing (5) is fitted on the bottom of the valve body (1), a supporting assembly (6) is mounted below the middle of the bottom of the housing (5), and an adjusting assembly (7) is fixedly mounted on the bottom of the housing (5) near the left and right sides.

2. A butterfly valve with a stable structure according to claim 1, characterized in that: The clamping assembly (4) comprises a rotating disk (41) fixedly sleeved on the outside of the rotating rod and a plurality of clamping grooves arranged at equal intervals on the outside of the rotating disk (41); a clamping rod (42) is inserted into the inner cavity of the upper clamping groove, and a sliding plate (43) is fixedly installed on the upper end of the clamping rod (42); the left side of the sliding plate (43) is slidably installed on the actuator (2); a flat plate (44) is arranged above the top of the sliding plate (43); the left side of the flat plate (44) is fixedly installed on the actuator (2); a threaded rod (45) is threadedly installed on the flat plate (44); and the lower end of the threaded rod (45) is movably installed on the sliding plate (43).

3. A butterfly valve with a stable structure according to claim 2, characterized in that: A hand-cranked wheel (451) is fixedly mounted on the upper end of the threaded rod (45).

4. A butterfly valve with a stable structure according to claim 1, characterized in that: The support assembly (6) comprises a knob (61) arranged at the lower middle of the bottom of the housing (5) and a worm (62) fixedly mounted at the middle of the top of the knob (61), the top of the worm (62) movably extending through the inner cavity of the housing (5), and the output end of the worm (62) is meshed with a worm wheel (63), a movable rod is fixedly mounted through the middle of the upper portion of the worm wheel (63), the left and right ends of the movable rod are respectively fixedly mounted with screws (64), and the opposite ends of the screws (64) are respectively movably mounted on the housing ( 5) on the inner wall of the inner cavity, and the external threads of the screw rod (64) are arranged oppositely, the outer sides of the screw rod (64) are respectively threadedly installed with threaded sleeves (65), and the middle part of the top of the threaded sleeve (65) is respectively fixedly installed with a moving rod (66), and the top of the outer shell (5) is respectively opened near the left and right sides with moving openings, the upper ends of the moving rods (66) respectively pass through the inner cavities of adjacent moving openings, and are respectively fixedly installed with arc-shaped supporting blocks (67), and the tops of the arc-shaped supporting blocks (67) are respectively fitted on the outer sides of the valve body (1).

5. A butterfly valve with a stable structure according to claim 4, characterized in that: A connecting plate (651) is fixedly mounted on the bottom of each threaded sleeve (65), and a limiting telescopic rod (652) is fixedly mounted on the opposite side of the connecting plate (651), and the opposite end of the limiting telescopic rod (652) is fixedly mounted on the inner wall of the inner cavity of the outer shell (5).

6. A butterfly valve with a stable structure according to claim 1, characterized in that: The adjustment assembly (7) comprises support legs (71) respectively fixedly mounted on the bottom of the housing (5) near the left and right sides and movable blocks (72) respectively movably sleeved on the outer sides of the support legs (71) near the middle, and L-shaped plug plates (73) are respectively fixedly mounted on four sides near the bottom of the movable block (72), and holes are respectively opened on opposite sides of the movable block (72) near the top, and T-shaped rods (74) are respectively movably installed through the inner cavities of the holes, and a plurality of positioning grooves are respectively opened on opposite sides of the movable block (72) at equal intervals, and opposite ends of the T-shaped rods (74) are respectively inserted into the inner cavities of adjacent positioning grooves.

7. A butterfly valve with a stable structure according to claim 6, characterized in that: The outer sides of the T-shaped rods (74) are respectively sleeved with return springs (741), and the two ends of the return springs (741) are respectively fixedly mounted on the adjacent T-shaped rods (74) and the movable block (72).

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