Bidirectional knife gate valve

Abstract

The utility model relates to the technical field of knife gate valves, and discloses a bidirectional knife gate valve which comprises a valve seat, a rectangular opening is formed in the middle of the top of the valve seat, a connecting cover is fixedly installed at the positions, close to the top, of the two sides of the valve seat, and a first threaded rod movably penetrates through the top of the connecting cover. The position, close to the top end, of the periphery of the first threaded rod is in threaded connection with a threaded sleeve, a driven gear can rotate under rotation of a driving gear, a sliding block can move towards the periphery under cooperation of an arc-shaped groove and a driving rod, then a grip can be stretched out, and a worker can conveniently push a driving disc to rotate through the grip; the two-way knife gate valve can be adjusted to be opened or closed in time, the using effect of the device is improved, a limiting column is inserted into an inner cavity of a limiting hole in an adjacent disc, a first threaded rod can be limited, and the situation that a worker accidentally touches a grip, and consequently the knife gate valve is accidentally opened or closed can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of knife gate valves, in particular to a bidirectional knife gate valve. Background Art

[0002] The two-way knife gate valve is also called a knife-shaped gate valve and a knife-gate gate valve, etc. The opening and closing part of the knife gate valve is a gate. The movement direction of the gate is perpendicular to the direction of the fluid, and the medium is cut off by the blade-shaped gate that can cut the fiber material.

[0003] The two-way knife gate valve is usually opened or closed manually by the operator. However, when the operator's hands are sweaty or oily, it is easy to slip when turning the drive wheel, and the knife gate valve cannot be closed or opened in time, thereby reducing the use effect of the device.

[0004] Therefore, we proposed a two-way knife gate valve to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a two-way knife gate valve 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 two-way knife gate valve, comprising a valve seat, a rectangular opening is opened at the middle position of the top of the valve seat, a connecting cover is fixedly installed on both sides of the valve seat near the top, a first threaded rod is movably penetrated through the top of the connecting cover, a threaded sleeve is threadedly connected to the outer periphery of the first threaded rod near the top, a valve plate is fixedly installed on the other side of the threaded sleeve, the bottom of the valve plate movably penetrates the inner cavity of the rectangular opening, a driving disk is fixedly installed on the top of the first threaded rod, an adjusting component is arranged in the inner cavity of the driving disk, and a limit position component is arranged on the top of the connecting cover;

[0007] The adjustment component includes a servo motor fixedly installed at one side of the top of the inner cavity of the driving disk and a driving gear fixedly installed at the end of the servo motor power output shaft, a driven gear is meshed with one side of the driving gear, a driving rod is movably penetrated through the top of the driven gear, a sliding block is fixedly installed on the top of the driving rod, the sliding blocks are slidably connected to the top of the inner cavity of the driving disk, a handle is fixedly installed on the outer periphery of the sliding block, a plurality of through holes are opened on the outer periphery of the driving disk, and the handle passes through the inner cavity of adjacent through holes.

[0008] Preferably, a support column is fixedly installed at the top center of the driven gear, the top of the support column is rotatably connected to the bottom of the inner cavity of the driving disk, a plurality of arc grooves are opened on the top of the driven gear, and the driving rods are movable through the inner cavities of adjacent arc grooves.

[0009] Preferably, the length and width of the valve plate are adapted to the rectangular opening.

[0010] Preferably, the limiting assembly includes a support block fixedly mounted on the top of the connecting cover and a threaded tube movably passing through one side of the support block, the inner cavity of the threaded tube is threadedly connected to a second threaded rod, a movable block is fixedly mounted on the end of the second threaded rod, a limiting column is fixedly mounted at the middle position of one side of the movable block, a disc is fixedly sleeved on the outer periphery of the first threaded rod near the top end, and a plurality of limiting holes are opened on the disc, and the limiting columns are inserted in the inner cavities of adjacent limiting holes.

[0011] Preferably, a knob is fixedly mounted on the other end of the threaded tube, and an anti-slip pad is fixedly mounted on the outer periphery of the knob.

[0012] Preferably, a limiting telescopic rod is fixedly installed on the other side of the movable block near the front and rear sides, and the ends of the limiting telescopic rod are fixedly connected to the support block.

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

[0014] 1. By setting the adjustment component, the driven gear can rotate under the rotation of the driving gear, and the sliding block can move toward the periphery under the cooperation of the arc groove and the driving rod, so that the handle can be extended, which is convenient for the staff to push the driving disk to rotate through the handle, so as to timely adjust the two-way knife gate valve to open or close, thereby improving the use effect of the device.

[0015] 2. By setting a limit assembly, the first threaded rod can be limited in the inner cavity of the limit hole on the adjacent disc when the limit column is inserted, which can prevent the staff from accidentally touching the handle and causing the knife gate valve to open or close accidentally. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the first threaded rod, threaded sleeve and valve plate of the utility model;

[0018] Figure 3 It is a partial cross-sectional exploded view of the driving disk and the first threaded rod of the present invention;

[0019] Figure 4 This is an exploded view of the driving disc and the driven gear from another perspective of the present invention.

[0020] In the figure: 1. valve seat; 2. rectangular opening; 3. connecting cover; 4. first threaded rod; 5. threaded sleeve; 6. valve plate; 7. adjustment assembly; 71. servo motor; 72. driving gear; 73. driven gear; 731. support column; 732. arc groove; 74. driving rod; 75. sliding block; 76. handle; 8. limit assembly; 81. support block; 82. threaded tube; 821. knob; 83. second threaded rod; 84. movable block; 841. limit telescopic rod; 85. limit column; 86. disc; 9. driving disc. 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.

[0022] Example 1: Please refer to Figure 1-4 A two-way knife gate valve comprises a valve seat 1, a rectangular opening 2 is provided at the middle position of the top of the valve seat 1, a connecting cover 3 is fixedly installed on both sides of the valve seat 1 near the top, a first threaded rod 4 is movably penetrated through the top of the connecting cover 3, a threaded sleeve 5 is threadedly connected to the outer periphery of the first threaded rod 4 near the top, a valve plate 6 is fixedly installed on the other side of the threaded sleeve 5, the bottom of the valve plate 6 movably penetrates the inner cavity of the rectangular opening 2, a driving disk 9 is fixedly installed on the top of the first threaded rod 4, an adjusting component 7 is provided in the inner cavity of the driving disk 9, and a limit component 8 is provided on the top of the connecting cover 3;

[0023] The adjusting assembly 7 comprises a servo motor 71 fixedly mounted on one side of the top of the inner cavity of the driving disk 9 and a driving gear 72 fixedly mounted on the end of the power output shaft of the servo motor 71. A driven gear 73 is meshed on one side of the driving gear 72. A driving rod 74 movably penetrates the top of the driven gear 73. A sliding block 75 is fixedly mounted on the top of the driving rod 74. The sliding blocks 75 are slidably connected to the top of the inner cavity of the driving disk 9. A grip 76 is fixedly mounted on the outer periphery of the sliding block 75. A plurality of through holes are provided on the outer periphery of the driving disk 9, and the grip 76 penetrates the inner cavity of adjacent through holes. The rotation of the driving gear 72 can make the driven gear 73 rotate. With the cooperation of the arc groove 732 and the driving rod 74, the sliding block 75 can be moved toward the periphery, and then the grip 76 can be extended, so that the staff can push the driving disk 9 to rotate through the grip 76, so as to timely adjust the two-way knife gate valve to open or close, thereby improving the use effect of the device.

[0024] A support column 731 is fixedly installed at the center of the top of the driven gear 73, and the top of the support column 731 is rotatably connected to the bottom of the inner cavity of the driving disk 9. A plurality of arc grooves 732 are opened on the top of the driven gear 73, and the driving rods 74 are movable through the inner cavities of adjacent arc grooves 732.

[0025] The length and width of the valve plate 6 are adapted to the rectangular opening 2 , and the rectangular opening 2 can be provided to limit the position of the valve plate 6 when it moves.

[0026] Embodiment 2: This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 2 and Figure 3 The limiting assembly 8 includes a support block 81 fixedly mounted on the top of the connecting cover 3 and a threaded tube 82 movably penetrating one side of the support block 81. The inner cavity of the threaded tube 82 is threadedly connected with a second threaded rod 83. A movable block 84 is fixedly mounted on the end of the second threaded rod 83. A limiting column 85 is fixedly mounted at the middle position of one side of the movable block 84. A disc 86 is fixedly sleeved on the outer periphery of the first threaded rod 4 near the top, and the disc 86 is provided with a plurality of limiting holes. The limiting column 85 is inserted into the inner cavity of the adjacent limiting hole. When the limiting column 85 is inserted into the inner cavity of the limiting hole on the adjacent disc 86, the first threaded rod 4 can be limited, which can prevent the staff from accidentally touching the handle 76 and causing the knife gate valve to open or close accidentally.

[0027] A knob 821 is fixedly installed at the other end of the threaded tube 82, and an anti-skid pad is fixedly installed on the outer periphery of the knob 821. The threaded tube 82 can be rotated by the knob 821, and a protective pad is provided on the knob 821 to prevent slipping when the knob 821 is rotated.

[0028] A limiting telescopic rod 841 is fixedly installed on the other side of the movable block 84 near the front and rear sides, and the ends of the limiting telescopic rod 841 are fixedly connected to the support block 81. By setting the limiting telescopic rod 841, the movable block 84 can be limited when moving.

[0029] Working principle: When the utility model is used, when the staff needs to adjust the position of the valve plate 6, the threaded tube 82 is rotated by the knob 821, so that the second threaded rod 83 threadedly connected in the inner cavity of the threaded tube 82 moves the movable block 84 to one side under the limitation of the two limiting telescopic rods 841, so that the limiting column 85 fixed on the movable block 84 is away from the limiting hole on the adjacent disk 86, and conversely, the limiting column 85 can be inserted into the inner cavity of the limiting hole of the disk 86, which can prevent the staff from accidentally touching the handle 76 and causing the knife gate valve to be accidentally opened or closed. When the limiting column 85 is away from the inner cavity of the adjacent limiting hole, the servo motor 7 can be turned on at this time. 1 external power supply, the power output shaft of the servo motor 71 rotates to drive the driving gear 72 fixed on the shaft end of the power output shaft of the servo motor 71 to rotate, so that the driven gear 73 meshing therewith can rotate, and under the coordinated use of the arc groove 732 and the driving rod 74, the adjacent sliding blocks 75 can slide on the top of the inner cavity of the driving disk 9, and then the grip 76 fixed on the adjacent sliding blocks 75 can move to the side away from each other. The operator can drive the driving disk 9 to rotate through the grip 76, and can timely adjust the opening or closing of the two-way knife gate valve, thereby improving the use effect of the device and adjusting the extended length of the grip 76. The operator can push the grip 76 with less effort.

[0030] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0031] 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 two-way knife gate valve, comprising a valve seat (1), characterized in that: A rectangular opening (2) is provided at the middle position of the top of the valve seat (1); a connecting cover (3) is fixedly installed on both sides of the valve seat (1) near the top; a first threaded rod (4) is movably penetrated through the top of the connecting cover (3); a threaded sleeve (5) is threadedly connected to the outer periphery of the first threaded rod (4) near the top; a valve plate (6) is fixedly installed on the other side of the threaded sleeve (5); the bottom of the valve plate (6) movably penetrates the inner cavity of the rectangular opening (2); a driving disk (9) is fixedly installed on the top of the first threaded rod (4); an adjusting component (7) is provided in the inner cavity of the driving disk (9); and a limit component (8) is provided on the top of the connecting cover (3); The adjustment assembly (7) comprises a servo motor (71) fixedly mounted on one side of the top of the inner cavity of the driving disk (9) and a driving gear (72) fixedly mounted on the end of the power output shaft of the servo motor (71); a driven gear (73) is meshed with one side of the driving gear (72); a driving rod (74) is movably penetrated through the top of the driven gear (73); a sliding block (75) is fixedly mounted on the top of the driving rod (74); the sliding blocks (75) are slidably connected to the top of the inner cavity of the driving disk (9); a grip (76) is fixedly mounted on the outer periphery of the sliding blocks (75); a plurality of through holes are opened on the outer periphery of the driving disk (9), and the grip (76) penetrates the inner cavities of adjacent through holes.

2. A two-way knife gate valve according to claim 1, characterized in that: A support column (731) is fixedly mounted at the center of the top of the driven gear (73), the top of the support column (731) is rotatably connected to the bottom of the inner cavity of the driving disk (9), a plurality of arc-shaped grooves (732) are formed on the top of the driven gear (73), and the driving rods (74) are movably inserted into the inner cavities of adjacent arc-shaped grooves (732).

3. A two-way knife gate valve according to claim 1, characterized in that: The length and width of the valve plate (6) are adapted to the rectangular opening (2).

4. A two-way knife gate valve according to claim 1, characterized in that: The limiting assembly (8) comprises a support block (81) fixedly mounted on the top of the connection cover (3) and a threaded tube (82) movably penetrating one side of the support block (81); a second threaded rod (83) is threadedly connected to the inner cavity of the threaded tube (82); a movable block (84) is fixedly mounted on the end of the second threaded rod (83); a limiting column (85) is fixedly mounted at a middle position on one side of the movable block (84); a disk (86) is fixedly sleeved on the outer periphery of the first threaded rod (4) near the top end; the disk (86) is provided with a plurality of limiting holes; and the limiting columns (85) are inserted into the inner cavities of adjacent limiting holes.

5. A two-way knife gate valve according to claim 4, characterized in that: A knob (821) is fixedly mounted on the other end of the threaded tube (82), and an anti-slip pad is fixedly mounted on the outer circumference of the knob (821).

6. A two-way knife gate valve according to claim 4, characterized in that: A limiting telescopic rod (841) is fixedly installed on the other side of the movable block (84) near the front and rear sides, and the ends of the limiting telescopic rod (841) are fixedly connected to the support block (81).

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