Double air locking valve

Abstract

The invention discloses a double air locking valve, and relates to the technical field of air locking valves. The valve comprises two valve body assemblies, a connecting bolt is arranged between the two valve body assemblies, and the two valve body assemblies are fixedly installed through the connecting bolt. According to the discharging device, the valve plate is attached to the end of the valve body assembly under the gravity effect through the relocking mechanism on the surface of the rear end of the overturning shaft, so that the interior of the valve body assembly is kept closed, and when discharging is conducted, the driving mechanism drives the upper overturning shaft to rotate so that the upper valve plate can be overturned and opened; when the materials are unloaded, the materials are unloaded into a valve plate in the lower side valve body assembly, a lower side overturning shaft is driven by a driving mechanism to rotate so that the lower side valve plate can be overturned and opened to achieve unloading and discharging of the materials, and when the materials are unloaded, an upper side valve plate of the materials is closed through the relocking mechanism under the gravity effect of the relocking mechanism; and therefore, the air leakage phenomenon during unloading is prevented, and the air locking function is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of air lock valves, and in particular to a double air lock valve. Background Art

[0002] Electric air lock valves and heavy hammer air lock valves are widely used in cement raw material and clinker grinding systems, powder material sorting systems and dust removal systems. Double air lock valves usually have a double-layer design in structure, that is, an additional layer is added to the sealing device of the valve body to enhance the sealing performance of the valve.

[0003] The existing double air lock valve has two sets of valve plates. When the valve plates are opened, they are often independently driven and controlled by hydraulic rods or motors. This control method has a relatively limited structure and requires the use of two sets of power drives. The Chinese patent with publication number CN103496594A discloses a double air lock valve, including a valve body, an inlet flange and an outlet flange respectively arranged at the upper and lower ports of the valve body, and an asynchronous double air lock structure arranged in the valve body, and maintenance corresponding to the air lock structure arrangement;

[0004] With regard to the above-mentioned public technology, a compact torsion spring structure is utilized, relying on the balance state of the material's own weight and the torque of the double torsion spring mechanism to drive the valve plate welded on the sleeve to open and reset. After long-term use, the torsion spring is located inside the valve body and is easily corroded and damaged, making it inconvenient to maintain.

[0005] For this reason, a double air lock valve is proposed. Summary of the invention

[0006] The purpose of the present invention is to solve the problems raised in the above background technology, and the present invention provides a double air lock valve.

[0007] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0008] A double-lock air valve comprises two groups of valve body assemblies, connecting bolts are arranged between the two groups of valve body assemblies, and the two groups of valve body assemblies are fixedly installed by the connecting bolts, a bearing seat assembly is arranged on the surface of the valve body assembly, and a flip shaft is inserted into the interior of the bearing seat assembly, a valve plate is welded and installed on the surface of the flip shaft located inside the valve body assembly, a heavy-locking mechanism is fixedly arranged on the rear end surface of the flip shaft, and a driving mechanism is arranged on the surface of the upper valve body assembly and the front end of the flip shaft.

[0009] Furthermore, the valve body assembly includes a valve housing, the top and bottom ends of the valve housing are fixedly mounted with rectangular flanges, a sealing strip is fixedly mounted on an inner wall of one side of the valve housing, a sealing plate is fixedly mounted on an inner bottom of the valve housing, a sealing end plate is inserted into the front side wall of the valve housing, and a first bolt is threadedly inserted into the threaded hole on the surface of the sealing end plate and the end face of the valve housing.

[0010] Furthermore, the bearing seat assembly includes a mounting hole, and the rear side wall of the valve housing and the surface of the sealing end plate are provided with mounting holes, a bearing end cover is inserted into the interior of the mounting hole, a ball bearing is fixedly inserted into the interior of the bearing end cover, a second bolt is inserted into the interior of the mounting hole, and the bearing end cover is fixedly installed on the rear side wall of the valve housing and the front side wall of the sealing end plate by the second bolt, and a flip shaft is rotatably installed in the bearing end cover through a ball bearing.

[0011] Furthermore, the flip shaft includes a rotating shaft, the inner wall of the inner ring of the ball bearing is fixedly plugged with the rotating shaft, the rotating shaft is rotatably mounted with the mounting hole through the ball bearing, an annular groove is opened on the surface of the rotating shaft, and a retaining spring is clamped inside the annular groove, and a valve plate is fixedly mounted on the surface of the rotating shaft located inside the valve housing.

[0012] Further, the re-locking mechanism includes a ring, a surface fixed sleeve of the rear end of the rotating shaft is provided with a ring, a mounting rod is fixedly installed on the surface of the ring, and the end of the mounting rod is provided with a thread, a surface fixed sleeve of the mounting rod is provided with a limit ring, a counterweight ring is movably inserted into the end of the mounting rod, the threaded surface of the mounting rod is threadedly engaged with a nut, and the nut is used to fix the counterweight ring.

[0013] Furthermore, the driving mechanism includes a trigger rod, a surface fixing sleeve at the front end of the rotating shaft is provided with the trigger rod, a motor is fixedly mounted on the side wall of the upper valve body assembly through a bracket, and a contact rod is fixedly mounted on the output end of the motor through a shaft sleeve.

[0014] Furthermore, the bottom surfaces of the sealing strip and the sealing plate are arranged to be inclined, and when the valve plate is closed, the top surface of the valve plate is arranged to fit with the bottom surfaces of the sealing strip and the sealing plate.

[0015] Furthermore, the trigger rods located at the front ends of the rotating shafts on the upper and lower sides are located on both sides of the contact rod, and the two groups of trigger rods are arranged in parallel and symmetrically.

[0016] The beneficial effects of the present invention are as follows:

[0017] The two groups of valve body assemblies are fixed by connecting bolts, and the flip shaft and the interior of the valve body assembly are rotatably installed by the bearing seat assembly. The valve plate and the end of the valve body assembly are fitted together by the re-locking mechanism on the rear end surface of the flip shaft under the action of gravity to keep the interior of the valve body assembly closed. When unloading, the upper flip shaft is driven to rotate by the driving mechanism to flip and open the upper valve plate, so that the material is unloaded into the valve plate in the lower valve body assembly, and the lower flip shaft is driven to rotate by the driving mechanism to flip and open the lower valve plate to unload and discharge the material. When unloading the material, the upper valve plate is closed through the re-locking mechanism under the action of gravity, thereby preventing air leakage during unloading and realizing the air locking function. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 is a side view of the present invention;

[0020] Figure 3 It is a partial structural schematic diagram of the present invention;

[0021] Figure 4 is a schematic diagram of a valve housing of the present invention;

[0022] Figure 5 It is a schematic diagram of a partial explosion diagram of the present invention;

[0023] Figure 6 It is an exploded view of the turning shaft, valve plate and relocking mechanism of the present invention;

[0024] 1. Valve body assembly; 101. Valve housing; 102. Rectangular flange; 103. Sealing strip; 104. Sealing plate; 105. Sealing end plate; 106. First bolt; 2. Connecting bolt; 3. Bearing seat assembly; 301. Mounting hole; 302. Bearing end cover; 303. Ball bearing; 304. Second bolt; 4. Flip axis; 401. Rotating axis; 402. Annular notch; 403. Retaining spring; 5. Valve plate; 6. Re-locking mechanism; 601. Ring; 602. Mounting rod; 603. Thread; 604. Limiting ring; 605. Counterweight ring; 606. Nut; 7. Driving mechanism; 701. Trigger rod; 702. Motor; 703. Contact rod. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0028] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when used. They 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 cannot be understood as a limitation on the present invention.

[0029] like Figures 1 to 6As shown, a double lock air valve comprises two groups of valve body assemblies 1, connecting bolts 2 are arranged between the two groups of valve body assemblies 1, and the two groups of valve body assemblies 1 are fixedly installed by the connecting bolts 2, a bearing seat assembly 3 is arranged on the surface of the valve body assembly 1, and a flip shaft 4 is inserted into the interior of the bearing seat assembly 3, a valve plate 5 is welded and installed on the surface of the flip shaft 4 located inside the valve body assembly 1, a heavy locking mechanism 6 is fixedly arranged on the rear end surface of the flip shaft 4, and a driving mechanism 7 is arranged on the surface of the upper valve body assembly 1 and the front end of the flip shaft 4. More specifically, the two groups of valve body assemblies 1 are fixed by connecting bolts 2, and the flip shaft 4 is rotatably installed with the interior of the valve body assembly 1 through the bearing seat assembly 3. The valve plate 5 is fitted with the end of the valve body assembly 1 by the re-locking mechanism 6 on the rear end surface of the flip shaft 4 under the action of gravity to keep the interior of the valve body assembly 1 closed. When unloading, the upper flip shaft 4 is driven to rotate by the driving mechanism 7 so that the upper valve plate 5 is flipped and opened, so that the material is unloaded into the valve plate 5 in the lower valve body assembly 1, and the lower flip shaft 4 is driven to rotate by the driving mechanism 7 so that the lower valve plate 5 is flipped and opened to discharge the material. When the material is unloaded, the upper valve plate 5 is closed through the re-locking mechanism 6 under the action of gravity through the re-locking mechanism 6, thereby preventing air leakage during unloading and realizing the air locking function.

[0030] The valve body assembly 1 includes a valve housing 101, a rectangular flange 102 is fixedly installed at the top and bottom of the valve housing 101, a sealing strip 103 is fixedly installed on the inner wall of one side of the valve housing 101, a sealing plate 104 is fixedly installed on the inner bottom of the valve housing 101, a sealing end plate 105 is inserted into the front side wall of the valve housing 101, and a first bolt 106 is inserted into the threaded hole on the surface of the sealing end plate 105 and the end face of the valve housing 101. More specifically, the sealing end plate 105 can be fixed to the front side of the valve housing 101 through the first bolt 106, and the rectangular flange 102 at the top and bottom of the valve housing 101 can be fixed to the equipment, and the two sets of valve housings 101 can be fixed through the connecting bolts 2.

[0031] The bearing seat assembly 3 includes a mounting hole 301. The rear side wall of the valve housing 101 and the surface of the sealing end plate 105 are provided with the mounting hole 301. The bearing end cover 302 is inserted into the mounting hole 301. The ball bearing 303 is fixedly inserted into the bearing end cover 302. The second bolt 304 is inserted into the mounting hole 301. The bearing end cover 302 is fixedly installed on the rear side wall of the valve housing 101 and the front side wall of the sealing end plate 105 through the second bolt 304. The flip shaft 4 is rotatably installed in the bearing end cover 302 through the ball bearing 303. More specifically, the bearing end cover 302 can be fixed in the mounting hole 301 through the second bolt 304, and the flip shaft 4 can be rotatably installed through the ball bearing 303 fixedly installed in the bearing end cover 302.

[0032] The flip shaft 4 includes a rotating shaft 401, the inner wall of the inner ring of the ball bearing 303 is fixedly plugged with the rotating shaft 401, the rotating shaft 401 is rotatably mounted with the mounting hole 301 through the ball bearing 303, an annular notch 402 is provided on the surface of the rotating shaft 401, and a retaining spring 403 is clamped inside the annular notch 402, and a valve plate 5 is fixedly mounted on the surface of the rotating shaft 401 located inside the valve housing 101. More specifically, the rotating shaft 401 is rotatably mounted by plugging the rotating shaft 401 with the inner ring of the ball bearing 303, the retaining spring 403 is clamped inside the annular notch 402 on the surface of the rotating shaft 401, and the rotating shaft 401 is fixed by the rotating shaft 401 surface welding the valve plate 5, so that the valve plate 5 can be flipped when the rotating shaft 401 rotates.

[0033] The relocking mechanism 6 includes a ring 601, a surface fixed sleeve of the ring 601 at the rear end of the rotating shaft 401, a mounting rod 602 is fixedly installed on the surface of the ring 601, and a thread 603 is provided at the end of the mounting rod 602, a limiting ring 604 is fixedly provided on the surface of the mounting rod 602, a counterweight ring 605 is movably inserted at the end of the mounting rod 602, a nut 606 is threadedly engaged with the surface of the mounting rod 602 with the thread 603, and the nut 606 is used to fix the counterweight ring 605. More specifically, the counterweight ring 605 is inserted into the surface of the mounting rod 602, and the nut 606 is threadedly inserted into the thread 603 on the surface of the mounting rod 602 to fix the counterweight ring 605. The position of the counterweight ring 605 can be adjusted by adjusting the position of the nut 606. The gravity of the counterweight ring 605 enables the valve plate 5 to fit tightly with the bottom surfaces of the sealing strip 103 and the sealing plate 104 through the rotating shaft 401.

[0034] The driving mechanism 7 includes a trigger rod 701, a trigger rod 701 is fixedly sleeved on the surface of the front end of the rotating shaft 401, a motor 702 is fixedly installed on the side wall of the upper valve body assembly 1 through a bracket, and a contact rod 703 is fixedly installed on the output end of the motor 702 through a shaft sleeve. More specifically, the contact rod 703 is driven to rotate by the motor 702, and the contact rod 703 first pushes the upper trigger rod 701 to drive the flip shaft 4 to flip the valve plate 5, and the contact rod 703 continues to rotate to drive the flip shaft 4 through the lower trigger rod 701 to flip the lower valve plate 5.

[0035] The bottom surfaces of the sealing strip 103 and the sealing plate 104 are inclined, and when the valve plate 5 is closed, the top surface of the valve plate 5 is fitted with the bottom surfaces of the sealing strip 103 and the sealing plate 104. More specifically, the valve plate 5 is fitted with the bottom surfaces of the sealing strip 103 and the sealing plate 104 to achieve closure.

[0036] The trigger rods 701 located at the front ends of the upper and lower rotating shafts 401 are located on both sides of the contact rods 703, and the two sets of trigger rods 701 are arranged in parallel and symmetrically. More specifically, the two sets of trigger rods 701 arranged in parallel are intermittently pushed when the contact rods 703 rotate.

[0037] In summary: the two groups of valve body assemblies 1 are fixed by connecting bolts 2, and the flip shaft 4 and the interior of the valve body assembly 1 are rotatably installed by the bearing seat assembly 3. The valve plate 5 and the end of the valve body assembly 1 are fitted together by the re-locking mechanism 6 on the rear end surface of the flip shaft 4 under the action of gravity to keep the interior of the valve body assembly 1 closed. When unloading, the upper flip shaft 4 is driven to rotate by the driving mechanism 7 so that the upper valve plate 5 is flipped and opened, so that the material is unloaded into the valve plate 5 in the lower valve body assembly 1, and the lower flip shaft 4 is driven to rotate by the driving mechanism 7 so that the lower valve plate 5 is flipped and opened to discharge the material. When the material is unloaded, the upper valve plate 5 is closed through the re-locking mechanism 6 under the action of gravity through the re-locking mechanism 6, thereby preventing air leakage during unloading and realizing the air locking function.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A double air lock valve, characterized in that: The invention comprises two groups of valve body assemblies (1), a connecting bolt (2) is arranged between the two groups of valve body assemblies (1), and the two groups of valve body assemblies (1) are fixedly installed by the connecting bolt (2), a bearing seat assembly (3) is arranged on the surface of the valve body assembly (1), and a flip shaft (4) is inserted into the interior of the bearing seat assembly (3), a valve plate (5) is welded and installed on the surface of the flip shaft (4) located inside the valve body assembly (1), a relocking mechanism (6) is fixedly arranged on the rear end surface of the flip shaft (4), and a driving mechanism (7) is arranged on the surface of the upper valve body assembly (1) and the front end of the flip shaft (4).

2. A double air lock valve according to claim 1, characterized in that: The valve body assembly (1) comprises a valve housing (101), the top and bottom ends of the valve housing (101) are fixedly mounted with rectangular flanges (102), a sealing strip (103) is fixedly mounted on the inner wall of one side of the valve housing (101), a sealing plate (104) is fixedly mounted on the inner bottom of the valve housing (101), a sealing end plate (105) is inserted into the front side wall of the valve housing (101), and a first bolt (106) is threadedly inserted into the threaded hole on the surface of the sealing end plate (105) and the end face of the valve housing (101).

3. A double air lock valve according to claim 2, characterized in that: The bearing seat assembly (3) comprises a mounting hole (301), the rear side wall of the valve housing (101) and the surface of the sealing end plate (105) are provided with the mounting hole (301), a bearing end cover (302) is inserted into the interior of the mounting hole (301), a ball bearing (303) is fixedly inserted into the interior of the bearing end cover (302), a second bolt (304) is inserted into the interior of the mounting hole (301), and the bearing end cover (302) is fixedly installed on the rear side wall of the valve housing (101) and the front side wall of the sealing end plate (105) through the second bolt (304), and a turning shaft (4) is rotatably installed in the bearing end cover (302) through the ball bearing (303).

4. A double air lock valve according to claim 3, characterized in that: The flip shaft (4) comprises a rotating shaft (401), the rotating shaft (401) is fixedly inserted into the inner wall of the inner ring of the ball bearing (303), the rotating shaft (401) is rotatably mounted with the mounting hole (301) via the ball bearing (303), an annular notch (402) is provided on the surface of the rotating shaft (401), and a retaining spring (403) is clamped inside the annular notch (402), and a valve plate (5) is fixedly mounted on the surface of the rotating shaft (401) located inside the valve housing (101).

5. A double air lock valve according to claim 4, characterized in that: The relocking mechanism (6) comprises a collar (601), a collar (601) is fixedly sleeved on the surface of the rear end of the rotating shaft (401), a mounting rod (602) is fixedly mounted on the surface of the collar (601), and a thread (603) is provided at the end of the mounting rod (602), a limiting ring (604) is fixedly sleeved on the surface of the mounting rod (602), a counterweight ring (605) is movably inserted at the end of the mounting rod (602), a nut (606) is threadedly engaged with the surface of the mounting rod (602) provided with the thread (603), and the nut (606) is used to fix the counterweight ring (605).

6. A double air lock valve according to claim 4, characterized in that: The driving mechanism (7) comprises a trigger rod (701), a trigger rod (701) is fixedly sleeved on the surface of the front end of the rotating shaft (401), a motor (702) is fixedly mounted on the side wall of the upper valve body assembly (1) via a bracket, and a contact rod (703) is fixedly mounted on the output end of the motor (702) via a shaft sleeve.

7. A double air lock valve according to claim 2, characterized in that: The bottom surfaces of the sealing strip (103) and the sealing plate (104) are arranged to be inclined, and when the valve plate (5) is closed, the top surface of the valve plate (5) is arranged to fit the bottom surfaces of the sealing strip (103) and the sealing plate (104).

8. A double air lock valve according to claim 6, characterized in that: The trigger rods (701) located at the front ends of the rotating shafts (401) on the upper and lower sides are located on both sides of the contact rod (703), and the two groups of trigger rods (701) are arranged in parallel and symmetrically.

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