Arc plate gate valve without guide groove

Abstract

The utility model relates to a gate valve, in particular to an arc plate gate valve without a guide groove, which solves the technical problems that the guide groove of the existing gate valve is easily occupied by materials, and the solidified materials can block the guide groove to influence the closing of the gate valve. Opening and closing of the valve are achieved in the mode that the power unit drives the arc plate gate to rotate, the rotating track of the arc plate is limited by the connecting plate, a guide groove of a traditional straight plate valve is omitted, and compared with a straight-in and straight-out inserting plate, the rotating switch of the arc plate gate needs smaller starting force, and the starting force is smaller. And the guide groove cannot be occupied by materials and cannot be closed due to the fact that the guide groove is blocked by solidified materials.

Description

TECHNICAL FIELD

[0001] The utility model relates to a gate valve, concretely relates to a guide slotless arc plate gate valve. BACKGROUND

[0002] In the canning or packaging process of powder particles, granular materials and other materials, the materials are first added to the silo, and then the materials are supplied through the downward pipeline connected with the silo. In order to control the opening and closing of the pipeline, a butterfly valve is usually arranged on the pipeline. The butterfly valve can well avoid air leakage, powder leakage and other problems, but it will compress the materials when it is opened and closed. Therefore, when packaging some materials that are not suitable for compression, a plug valve 01 is used on the pipeline.

[0003] The structure of the existing plug valve 01 is usually as shown in Figure 1 The plug for controlling the opening and closing of the pipeline directly enters and exits along the guide slot. Because of the existence of the guide slot, the materials will enter the guide slot when the plug valve 01 is opened. When the pipeline transports materials such as fertilizers that are easy to block and adhere, the guide slot may be occupied, and the solidified materials may also block the guide slot, thereby affecting the closing of the plug valve 01. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at solving the technical problem that the guide slot of the existing plug valve is easily occupied by materials, and the solidified materials may block the guide slot, thereby affecting the closing of the plug valve, and provides a guide slotless arc plate gate valve.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions:

[0006] A guide slotless arc plate gate valve, which is characterized in that:

[0007] It comprises a valve body, an arc plate gate, and a power unit.

[0008] The valve body is a hollow structure, comprising a lower cylinder and an upper cylinder sleeved on the upper part of the lower cylinder. The outlet end of the upper cylinder is located in the lower cylinder, and a gap is provided between the outlet end of the upper cylinder and the lower cylinder. The top of the upper cylinder and the bottom of the lower cylinder are provided with an upper feed inlet and a lower discharge outlet.

[0009] The arc plate gate is arranged at the outlet end position of the upper cylinder and comprises an arc plate and a rotating part.

[0010] The arc plate is arranged at the outlet end position of the upper cylinder, and the inner side wall of the arc plate is matched with the shape of the outlet end side wall of the upper cylinder, and the inner side wall of the arc plate abuts against the outlet end of the upper cylinder.

[0011] An opening for the arc plate to pass through is formed in the upper part of the side wall of the lower cylinder.

[0012] The rotating part is arranged on the two sides of the arc plate, and the outer end part of the rotating part is close to the arc plate.

[0013] The rotating part comprises a rotating shaft and a connecting plate, the rotating shaft is connected with the side wall of the arc plate, and the connecting plate is located outside the upper cylinder, one end of the connecting plate is fixedly connected with the inner side wall of the arc plate and / or the rotating shaft, and the other end is hingedly connected with the outer side wall of the upper cylinder;

[0014] The power unit is provided in two and arranged on the outer side wall of the lower cylinder on both sides of the opening, the fixed end of the power unit is hingedly connected with the outer side wall of the lower cylinder, and the movable end is hingedly connected with the rotating shaft;

[0015] The arc plate is arranged to satisfy the following condition: when the movable end of the power unit is not extended, the inner side wall of the arc plate completely closes the outlet end of the upper cylinder.

[0016] Further, the sealing assembly is further provided;

[0017] The sealing assembly comprises a mandrel, a foam rubber rod and a mounting rack;

[0018] The mounting rack is provided in two and arranged on the outer side wall of the upper cylinder on both sides of the opening;

[0019] The opening is a groove-shaped opening provided in the side wall of the upper end of the lower cylinder; the mandrel is provided in two, the foam rubber rod is provided in two and sleeved on the two mandrels respectively, and the two foam rubber rods are respectively abutted against the inner and outer side walls of the arc plate, and one of the foam rubber rods is abutted against the outer side wall of the upper cylinder and the other is abutted against the outer side wall of the lower cylinder;

[0020] Each mandrel is provided with a blind hole in the outer wall close to both ends in the radial direction, and each mounting rack is provided with two locking holes corresponding to the positions of the blind holes of the two mandrels, the axes of the two locking holes are respectively perpendicular to the two mandrels and respectively face the directions of the included angles between the outer side wall of the upper cylinder and the inner side wall of the arc plate and between the outer side wall of the lower cylinder and the outer side wall of the arc plate;

[0021] A fastening screw is rotatably arranged in each locking hole, and the bottom ends of the two fastening screws are respectively abutted against the hole bottoms of the blind holes of the two mandrels.

[0022] Further, the sealing assembly is further provided;

[0023] The sealing assembly comprises a mandrel, a foam rubber rod and a mounting rack;

[0024] The mounting rack is provided in two and arranged on the outer side wall of the upper cylinder on both sides of the opening;

[0025] The opening is a groove-shaped opening provided in the side wall of the upper end of the lower cylinder; the mandrel is provided in two, the foam rubber rod is provided in two and sleeved on the two mandrels respectively, and the two foam rubber rods are respectively abutted against the inner and outer side walls of the arc plate, and one of the foam rubber rods is abutted against the outer side wall of the upper cylinder and the other is abutted against the outer side wall of the lower cylinder;

[0026] Each mandrel is provided with a blind hole on the outer wall near the two ends, and each mounting frame is provided with two locking holes corresponding to the positions of the blind holes of the two mandrels, the axes of the two locking holes are perpendicular to the two mandrels respectively, and are directed towards the directions of the included angles between the outer lateral wall of the lower cylinder and the inner lateral wall of the arc plate and the included angles between the outer lateral wall of the lower cylinder and the outer lateral wall of the arc plate respectively;

[0027] A fastening screw is rotatably arranged in each locking hole, and the bottom ends of the two fastening screws are in abutment with the hole bottoms of the blind holes of the two mandrels.

[0028] Further, the power unit is a pneumatic cylinder or an electric cylinder.

[0029] Further, the power unit is a pneumatic cylinder, and a fixing shaft is welded on the outer lateral wall of the lower cylinder, and the fixed end of the pneumatic cylinder is hinged to the fixing shaft.

[0030] The movable end of the pneumatic cylinder is threadedly connected with a cylinder head cap, and the cylinder head cap is hinged to the rotating shaft.

[0031] Further, the end of the connecting plate hinged to the outer lateral wall of the upper cylinder is provided with a hinge hole, and an arc plate wire sleeve is rotatably arranged in the hinge hole and fixed to the outer lateral wall of the upper cylinder by screws.

[0032] Further, flanges are arranged on the upper inlet and the lower outlet.

[0033] Further, the outer lateral wall of the lower cylinder is connected to the outer lateral wall of the upper cylinder by a connecting plate.

[0034] Compared with the prior art, the utility model has the advantages that:

[0035] (1) The arc plate gate valve without guide groove provided by the utility model realizes the opening and closing of the valve through the rotation of the arc plate gate driven by the power unit, and the rotating track of the arc plate is limited by the connecting plate, so that the guide groove of the traditional straight plate valve is eliminated, the required starting force of the rotation and switching of the arc plate gate is smaller than that of the straight-in straight-out plug plate, and the guide groove cannot be occupied by the material and cannot be closed due to the solidified material blocking the guide groove.

[0036] (2) The arc plate gate valve without guide groove provided by the utility model is further provided with a sealing assembly, the compression force of the foam rubber rod can be adjusted by rotating the fastening screw, the sealing property is ensured, the foam rubber rod is sleeved on the mandrel and can rotate around the mandrel, and the smoothness of the rotation of the arc plate is not hindered. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 It is a perspective structural schematic view of the prior plug valve;

[0038] Figure 2It is the stereogram structure schematic view of the arc plate gate valve without guide slot of the utility model embodiment;

[0039] Figure 3 It is the rear view of the utility model embodiment;

[0040] Figure 4 It is Figure 3 the A-A section view of the utility model embodiment;

[0041] Figure 5 It is the side view of the utility model embodiment;

[0042] Figure 6 It is the stereogram structure schematic view of the arc plate gate of the utility model embodiment;

[0043] Figure 7 It is the stereogram structure schematic view of the valve body of the utility model embodiment;

[0044] Figure 8 It is the side view of the valve body of the utility model embodiment.

[0045] The sign of the drawing mark is as follows:

[0046] 01-plug valve;

[0047] 1-valve body, 11-upper inlet, 12-lower outlet, 13-fixed shaft, 14-upper cylinder, 15-lower cylinder; 2-arc plate gate, 21-arc plate, 22-rotating shaft, 23-connection plate; 3-power unit, 31-cylinder head cap; 4-core shaft, 5-foam rubber stick, 6-mounting frame, 61-locking hole, 7-flange. Specific implementation

[0048] The utility model will be further explained in connection with the drawing and specific embodiment.

[0049] Referring to Figures 2-8 , the utility model discloses a kind of arc plate gate valves without guide slot, including valve body 1, arc plate gate 2, power unit 3 and sealing assembly, the structure of valve body 1 is as shown in Figure 4 、 Figure 7 And Figure 8 , it is hollow structure, including lower cylinder 15 and upper cylinder 14 that is set in the upper portion inside lower cylinder 15, the outlet end of upper cylinder 14 is located in lower cylinder 15, and gap is equipped between lower cylinder 15, the outer side wall of upper cylinder 14 is closedly connected by connection plate between upper end portion of lower cylinder 15, upper inlet 11 and lower outlet 12 are equipped in the top of upper cylinder 14 and the bottom of lower cylinder 15, upper inlet 11 is used for feeding, and lower outlet 12 is used for discharging.

[0050] And the arc plate gate 2 is arranged at the outlet end of the upper cylinder 14, in normal operation, the material enters from the upper inlet 11, is blocked by the arc plate gate 2, when the material needs to be dropped, the arc plate gate 2 is opened, the material falls, and falls into the packaging bag from the lower outlet 12, in order to facilitate the connection of the whole no guide slot arc plate gate valve with other equipment, flanges 7 are arranged on the upper inlet 11 and the lower outlet 12.

[0051] The arc plate gate 2 is different from the straight in and out opening and closing mode of the original plug-in valve 01, and adopts rotary opening and closing, the structure of the arc plate gate 2 is as shown in Figure 6 Figure 4 It can be seen that in order to rotate and open and close the arc plate 21, an opening for the arc plate 21 to pass through is formed in the upper part of the side wall of the lower cylinder 15.

[0052] The rotating part has two and is arranged opposite to the two sides of the arc plate 21, and the two rotating parts are arranged close to the outer end of the arc plate 21, the rotating part includes a rotating shaft 22 and a connecting plate 23, the rotating shaft 22 is connected with the side wall of the arc plate 21, the connecting plate 23 is located outside the upper cylinder 14, one end of the connecting plate 23 is fixedly connected with the inner side wall of the arc plate 21 and / or the rotating shaft 22, and the other end is hingedly connected with the outer side wall of the upper cylinder 1, in this embodiment, one end of the connecting plate 23 is fixedly connected with the inner side wall of the arc plate 21 and the rotating shaft 22, so as to ensure the stability of the connection.

[0053] In order to realize the hinging of the connecting plate 23 and the outer side wall of the upper cylinder 14, a hinge hole is formed in one end of the connecting plate 23 and the outer side wall of the upper cylinder 14, an arc plate wire sleeve is rotatably installed in the hinge hole, the arc plate wire sleeve is fixed on the outer side wall of the upper cylinder 14 by screws, and the hinging of the connecting plate 23 and the outer side wall of the upper cylinder 14 is realized.

[0054] In order to drive the arc plate gate 2 to rotate, power units 3 are further arranged, two power units 3 are arranged on the outer side wall of the lower cylinder 15 on both sides of the opening, the power unit 3 is a gas cylinder or an electric cylinder, in this embodiment, the power unit 3 is a gas cylinder, the fixed end of the power unit 3 is hingedly connected with the side wall of the valve body 1, and the movable end is hingedly connected with the rotating shaft 22. In order to realize the hinging of the fixed end of the power unit 3 and the outer side wall of the lower cylinder 15, a fixed shaft 13 is welded on the outer side wall of the lower cylinder 15, the fixed end of the gas cylinder is hingedly connected with the fixed shaft 13, and a gas cylinder head cap 31 is threadedly connected with the movable end of the gas cylinder, the gas cylinder head cap 31 is hingedly connected with the rotating shaft 22, so that different sizes of the gas cylinder head cap 31 can be selected according to different sizes of the rotating shaft 22, and the threaded connection makes the replacement of the gas cylinder head cap 31 more convenient.

[0055] ​The arc plate 21 is arranged to meet the following conditions: when the movable end of the power unit 3 is not extended, the inner side wall of the arc plate 21 completely closes the outlet end of the upper cylinder 14. In this way, the sealing of the entire valve can be guaranteed, and when the movable end of the power unit 3 is extended, the arc plate gate 2 is driven to rotate, and the material can fall into the packaging bag from the lower discharge port 12. When the material falls, part of the material may leak through the opening of the arc plate 21, so a sealing assembly is also provided.

[0056] The sealing assembly includes a mandrel 4, a foam rubber rod 5, and a mounting bracket 6. The mounting bracket 6 has two and is arranged on the outer side wall of the upper cylinder 14 on both sides of the opening. The opening is a groove-shaped opening formed in the side wall of the upper end of the lower cylinder 15. The mandrel 4 has two, and the foam rubber rod 5 has two and is respectively sleeved on the two mandrels 4. The two foam rubber rods 5 respectively abut against the inner and outer side walls of the arc plate 21, and one of the foam rubber rods 5 abuts against the outer side wall of the upper cylinder 14, and the other foam rubber rod 5 abuts against the outer side wall of the lower cylinder 15.

[0057] Each mandrel 4 has a blind hole formed in the outer wall near the two ends in the radial direction. Each mounting bracket 6 has two locking holes 61 formed at positions corresponding to the blind holes of the two mandrels 4. The axes of the two locking holes 61 are respectively perpendicular to the two mandrels 4 and respectively face the directions of the included angles between the outer side wall of the upper cylinder 14 and the inner side wall of the arc plate 21 and between the outer side wall of the lower cylinder 15 and the outer side wall of the arc plate 21.

[0058] A fastening screw is rotatably installed in each locking hole 61. The bottom ends of the two fastening screws respectively abut against the hole bottoms of the blind holes of the two mandrels 4.

[0059] In use, when the movable end of the power unit 3 is not extended, the arc plate gate 2 is in a closed state. At this time, the material is poured from the upper inlet port 11. When the material needs to be discharged, the power unit 3 is started, the movable end is extended, the arc plate gate 2 is driven to rotate and open, and the material falls into the packaging bag from the lower discharge port 12. If the sealing of the opening is not good during the period, the fastening screw is adjusted by rotating.

[0060] In another embodiment, the difference from the above embodiment is that the opening is a linear opening arranged on the upper side wall of the lower cylinder 15. The mandrel 4 has two, and the foam rubber rod 5 has two and is respectively sleeved on the two mandrels 4. The two foam rubber rods 5 respectively abut against the inner and outer side walls of the arc plate 21, and the two foam rubber rods 5 are both abutted against the outer side wall of the upper part of the lower cylinder 15.

[0061] Each mandrel 4 is radially provided with a blind hole on the outer wall close to both ends, each mounting frame 6 is provided with two locking holes 61 corresponding to the positions of the blind holes of the two mandrels 4, the axes of the two locking holes 61 are perpendicular to the two mandrels 4 respectively, and are respectively directed to the directions of the included angles between the outer side wall of the lower cylinder 15 and the inner side wall of the arc plate 21 and the included angles between the outer side wall of the lower cylinder 15 and the outer side wall of the arc plate 21, a fastening screw is screwed in each locking hole 61, and the bottom ends of the two fastening screws are in abutment with the hole bottoms of the blind holes of the two mandrels 4 respectively.

[0062] The above-described embodiments are merely used to describe the specific implementation of the present application, and are not used to limit the scope of the present application, and various modifications and improvements to the technical scheme of the present application made by those skilled in the art without departing from the design spirit of the present application shall fall within the protection scope of the present application.

Claims

1. A guideless arc plate gate valve, characterized in that: comprising a valve body (1), an arc plate gate (2) and a power unit (3) ; the valve body (1) is a hollow structure, comprising a lower cylinder (15) and an upper cylinder (14) sleeved on the upper part of the lower cylinder (15), the outlet end of the upper cylinder (14) is located in the lower cylinder (15), and a gap is provided between the upper cylinder (14) and the lower cylinder (15), the top of the upper cylinder (14) and the bottom of the lower cylinder (15) are provided with an upper inlet (11) and a lower outlet (12) ; the arc plate gate (2) is arranged at the outlet end of the upper cylinder (14), comprising an arc plate (21) and a rotating part; the arc plate (21) is arranged at the outlet end of the upper cylinder (14), the inner side wall of the arc plate (21) is matched with the shape of the outlet end side wall of the upper cylinder (14), and the inner side wall of the arc plate (21) abuts against the outlet end of the upper cylinder (14) ; an opening for the arc plate (21) to pass through is formed in the upper part of the side wall of the lower cylinder (15) ; the rotating part is arranged on both sides of the arc plate (21), and the two rotating parts are arranged close to the outer end of the arc plate (21) ; the rotating part comprises a rotating shaft (22) and a connecting plate (23), the rotating shaft (22) is connected with the side wall of the arc plate (21), and the connecting plate (23) is located outside the upper cylinder (14), one end of the connecting plate (23) is fixedly connected with the inner side wall of the arc plate (21) and / or the rotating shaft (22), and the other end is hingedly connected with the outer side wall of the upper cylinder (14) ; the power unit (3) is arranged on the outer side wall of the lower cylinder (15) on both sides of the opening, the fixed end of the power unit (3) is hingedly connected with the outer side wall of the lower cylinder (15), and the movable end is hingedly connected with the rotating shaft (22) ; the arc plate (21) is arranged to satisfy the following condition: when the movable end of the power unit (3) is not extended, the inner side wall of the arc plate (21) completely closes the outlet end of the upper cylinder (14). 2.The guideless arc plate gate valve according to claim 1, characterized in that: further comprising a sealing assembly; the sealing assembly comprises a mandrel (4), a foam rubber rod (5) and a mounting bracket (6) ; the mounting bracket (6) is arranged on the outer side wall of the upper cylinder (14) on both sides of the opening; the opening is a groove type opening formed in the side wall of the upper end of the lower cylinder (15) ; the mandrel (4) has two, and the foam rubber rod (5) has two and is sleeved on the two mandrels (4) respectively; the two foam rubber rods (5) abut against the inner and outer side walls of the arc plate (21) respectively, and one of the foam rubber rods (5) abuts against the outer side wall of the upper cylinder (14), and the other abuts against the outer side wall of the lower cylinder (15) ; a blind hole is formed in the outer wall close to the two ends of each mandrel (4) in the radial direction, and two locking holes (61) are formed in each mounting bracket (6) corresponding to the positions of the blind holes of the two mandrels (4), the axes of the two locking holes (61) are perpendicular to the two mandrels (4) respectively, and are respectively directed towards the directions of the included angles between the outer side wall of the upper cylinder (14) and the inner side wall of the arc plate (21) and the included angles between the outer side wall of the lower cylinder (15) and the outer side wall of the arc plate (21). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ A fastening screw is screwed in each locking hole (61), and the bottom ends of the two fastening screws abut against the bottom of the blind hole of the two mandrels (4) respectively.

3. The guide slot-free arc plate gate valve according to claim 1, characterized in that: Further comprising a sealing assembly; The sealing assembly comprises a mandrel (4), a foam rubber rod (5) and a mounting bracket (6); The mounting bracket (6) is provided on the outer sidewall of the upper cylinder (14) on both sides of the opening; The opening is a linear opening provided on the upper sidewall of the lower cylinder (15); the mandrel (4) is provided in two, and the foam rubber rod (5) is provided in two and sleeved on the two mandrels (4) respectively; the two foam rubber rods (5) abut against the inner and outer sidewalls of the arc plate (21) respectively, and both of the two foam rubber rods (5) abut against the outer sidewall of the upper portion of the lower cylinder (15); Each mandrel (4) is provided with a blind hole on the outer wall near both ends in the radial direction; and each mounting bracket (6) is provided with two locking holes (61) corresponding to the positions of the blind holes of the two mandrels (4); the axes of the two locking holes (61) are perpendicular to the two mandrels (4) respectively, and are directed towards the directions of the included angles between the outer sidewall of the lower cylinder (15) and the inner sidewall of the arc plate (21) and the directions of the included angles between the outer sidewall of the lower cylinder (15) and the outer sidewall of the arc plate (21) respectively; A fastening screw is screwed in each locking hole (61), and the bottom ends of the two fastening screws abut against the bottom of the blind hole of the two mandrels (4) respectively.

4. The guide slot-free arc plate gate valve according to claim 2 or 3, characterized in that: The power unit (3) is a pneumatic cylinder or an electric cylinder.

5. The guide slot-free arc plate gate valve according to claim 4, characterized in that: The power unit (3) is a pneumatic cylinder, and a fixed shaft (13) is welded on the outer sidewall of the lower cylinder (15); the fixed end of the pneumatic cylinder is hinged to the fixed shaft (13); The movable end of the pneumatic cylinder is threadedly connected with a cylinder head cap (31), and the cylinder head cap (31) is hinged to the rotating shaft (22).

6. The guide slot-free arc plate gate valve according to claim 5, characterized in that: The end of the connecting plate (23) hinged to the outer sidewall of the upper cylinder (14) is provided with a hinge hole, and an arc plate wire sleeve is rotatably installed in the hinge hole; and the arc plate wire sleeve is fixed on the outer sidewall of the upper cylinder (14) by a screw.

7. The guide slot-free arc plate gate valve according to claim 1, characterized in that: Flanges (7) are provided on the upper inlet (11) and the lower outlet (12).

8. The guide slot-free arc plate gate valve according to claim 1, characterized in that: The outer sidewalls of the upper cylinder (14) and the lower cylinder (15) are connected by a connecting plate.

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