Closing valve and container assembly

Abstract

The utility model relates to the technical field of powder engineering, and discloses a closing valve and a container assembly, the closing valve comprises a valve seat which is fixedly connected with a valve, the valve seat is provided with a through hole corresponding to an outer side flow channel of the valve, and the through hole is located on the outer side of the outer side flow channel; the valve plate is connected with the valve seat in a hinged mode, and the valve plate has a first state for blocking the through hole and a second state for enabling at least part of the through hole to be exposed; the valve handle is fixedly connected with the valve plate so as to drive the valve plate to be switched between the first state and the second state through the valve handle. According to the closing valve, the valve plate is hinged to the valve seat, the valve plate rotates around the hinged axis of the valve plate and the valve seat so that the closing valve can be switched between the first state and the second state, the structure is simple, and operation is convenient; and the valve handle drives the valve plate to rotate around the hinged axis of the valve plate and the valve seat, so that an operator is prevented from making direct contact with the valve plate, and the risk of making contact with materials is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of powder engineering, in particular to a closing valve and a container assembly. Background Art

[0002] Powder engineering is widely used in the fields of medicine, food, feed, pesticides, fertilizers, nuclear industry, etc. In powder engineering, a large number of containers are used to store finished products and semi-finished products, and the loading and unloading operations of the containers are very frequent. The container is provided with a valve for feeding and / or discharging. Before and after the feeding and unloading operations, the outer flow channel of the valve is prone to adherence to materials. On the one hand, there is a risk of material polluting the environment and damaging the health of the operator. On the other hand, there is a hidden danger that environmental foreign matter adheres to the outer flow channel of the feeding and unloading valve, causing the stored materials to be contaminated or foreign matter to appear. At present, AB valves (split butterfly valves) are mainly used as feeding and unloading valves, or sealing covers are installed on the outside of the feeding and unloading valves to avoid the above risks and hidden dangers. However, the AB valve has a complex structure and is difficult to process. It is difficult to ensure its reliability during long-term use. The sealing cover needs to be manually disassembled and assembled, which is inconvenient to operate and there is a risk of easy contact with the material. Utility Model Content

[0003] In view of this, the utility model provides a closing valve and container assembly to solve the problems that the AB valve has a complex structure, complex processing and difficulty in ensuring reliability during long-term use, and the sealing cover requires manual operation and disassembly, which is inconvenient and has the risk of contact with materials.

[0004] In a first aspect, the utility model provides a closing valve for closing an outer flow channel of the valve, the closing valve comprising:

[0005] The valve seat is fixedly connected to the valve, and the valve seat is provided with a through hole corresponding to the outer flow channel of the valve, and the through hole is located outside the outer flow channel;

[0006] a valve plate hingedly connected to the valve seat, the valve plate having a first state in which the through hole is blocked, and a second state in which the through hole is at least partially exposed;

[0007] The valve handle is fixedly connected to the valve plate, so as to be suitable for driving the valve plate to switch between the first state and the second state through the valve handle.

[0008] Beneficial effects: The valve plate is hinged to the valve seat, and the valve plate rotates around the hinge axis between the valve seat and the valve seat to facilitate switching between the first state and the second state. The structure is simple and the operation is convenient. The valve plate is driven to rotate around the hinge axis between the valve seat and the valve handle to avoid direct contact between the operator and the valve plate, thereby avoiding the risk of contact with the material.

[0009] In an optional embodiment, a sleeve is provided on the valve seat, and the valve plate and / or the valve handle are connected to the sleeve and are hinged to the valve seat through the sleeve.

[0010] In an optional embodiment, the sleeve is rotatably arranged on the valve seat, the axis of the sleeve is parallel to the axis of the through hole, a bearing seat is provided on the side of the valve seat facing away from the valve plate, a first bearing is provided inside the bearing seat, the sleeve passes through the valve seat, and is passed through the inner ring of the first bearing.

[0011] Beneficial effects: By arranging a first bearing on the outer peripheral side of the sleeve, the sleeve can be rotatably connected to the valve seat through the first bearing, which is beneficial to reducing the wear between the sleeve and the valve seat, and fixing the relative position of the first bearing and the valve seat by the bearing seat, which is beneficial to improving the rotation stability of the sleeve.

[0012] In an optional embodiment, a rod body is passed through the sleeve, a limiting portion is provided at the first end of the rod body, the limiting portion abuts against the side of the sleeve facing away from the bearing seat, the second end of the rod body passes through the bearing seat, a tightening assembly is provided at the second end of the rod body, and the tightening assembly abuts against the side of the bearing seat facing away from the sleeve.

[0013] Beneficial effect: The limiting part abuts against one end face of the sleeve, and the clamping component abuts against the side of the bearing seat away from the sleeve, so that the sleeve is clamped between the bearing seat and the limiting part, thereby providing a certain pre-tightening force between the valve plate and the valve seat.

[0014] In an optional embodiment, the clamping assembly includes an adjusting member and a first elastic member. The adjusting member is connected to the rod body. Along the axial direction of the rod body, the adjusting member and the rod body have multiple connection positions. The first elastic member is arranged between the adjusting member and the bearing seat, and the first elastic member is in a compressed state.

[0015] Beneficial effect: By changing the connection position of the adjusting piece on the rod body, the size of the pre-tightening force between the valve plate and the valve seat can be adjusted.

[0016] In an optional embodiment, the closing valve further comprises a pressure plate, which is fixedly connected to the valve seat, and at least a portion of the pressure plate is located on the side of the valve plate facing away from the valve seat, so as to be suitable for abutting against the side of the valve plate facing away from the valve seat.

[0017] Beneficial effect: The pressure plate abuts against the valve plate, so as to press the valve plate tightly against the valve seat, which is beneficial to ensure the sealing effect of the valve plate blocking the through hole.

[0018] In an optional embodiment, an operating rod is provided at one end of the valve handle away from the valve plate, so as to be suitable for driving the valve handle to move through the operating rod.

[0019] In an optional embodiment, the closing valve further includes a driving member connected to the operating rod, and the driving member is suitable for driving the operating rod to move.

[0020] Beneficial effects: The operating lever is controlled by the driving member, eliminating the need for manual operation by the operator, reducing labor intensity, and helping to improve the automation level of the closing valve and avoid the risk of personnel contacting the material.

[0021] In an optional embodiment, the closing valve further includes a positioning assembly, the positioning assembly includes a positioning ball, and a positioning groove is provided on the valve plate. When the valve plate is in the first state, a partial area of ​​the positioning ball extends into the positioning groove.

[0022] Beneficial effect: By allowing a portion of the positioning ball to extend into the positioning groove, a damping torque is formed when the valve plate is opened, which is beneficial to avoiding the malfunction phenomenon of the valve plate accidentally opening.

[0023] In a second aspect, the present invention further provides a container assembly, comprising: the above-mentioned closing valve.

[0024] Because the container assembly includes a closing valve, it has the same effect as the closing valve, and its beneficial effects are not repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 This is a front view of a container assembly according to an embodiment of the present utility model;

[0027] Figure 2 for Figure 1 A top view of the closing valve shown in a first state;

[0028] Figure 3 for Figure 2 Schematic diagram of the AA section;

[0029] Figure 4 for Figure 3 A partial enlarged schematic diagram of center C;

[0030] Figure 5 for Figure 3 A partial enlarged schematic diagram of D in the middle;

[0031] Figure 6 for Figure 2 Schematic diagram of the middle BB section;

[0032] Figure 7 for Figure 1 A top view of the closing valve shown in a second state;

[0033] Figure 8 for Figure 7 Schematic diagram of the EE section;

[0034] Figure 9 for Figure 8 A partial enlarged schematic diagram of F in the middle.

[0035] Description of reference numerals:

[0036] 1. Valve seat; 101. Through hole; 102. Clearance hole; 2. Valve plate; 201. Positioning groove; 3. Pressure plate; 4. Valve; 5. Container; 6. Rod body; 601. Limiting part; 7. Valve handle; 8. Operating lever; 9. Connecting pipe; 901. Through passage; 10. Sealing ring; 11. First elastic member; 12. Adjusting member; 13. Movable plate; 14. Bearing seat; 141. Partition plate; 15. First bearing; 16. Locking member; 17. Pressing seat; 171. Positioning hole; 18. Second elastic member; 19. Positioning ball; 20. Sleeve; 21. Mounting groove; 22. Roller. DETAILED DESCRIPTION

[0037] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, 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 embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0038] Powder engineering covers processes such as crushing, pulverizing, grading, storage, filling and transportation, during which a large number of containers are used to store finished products or semi-finished products, so the feeding and unloading operations of the containers are very frequent. A butterfly valve is usually provided on the container as a valve for feeding and / or discharging. Before and after the feeding and unloading operations, on the one hand, the outer flow channel of the valve is prone to adhere to the material, and there is a risk of toxic and harmful materials polluting the environment and damaging the health of the operators; on the other hand, there is a hidden danger of environmental foreign matter adhering to the outer flow channel of the valve, causing the stored materials to be contaminated or foreign matter to appear. In the related art, AB valves are mainly used as feeding and discharging valves or sealing covers are added to the outside of the feeding and discharging valves to avoid the above problems. However, the valve disc of the AB valve adopts a split structure, the valve structure is complex, the processing is difficult, and the cost is high. Although theoretically, no material will remain on the outside of the valve after the main valve and sub-valve are separated, it is difficult to ensure reliable and high-precision docking between the main valve and sub-valve over a long period of time. During operation, the material will inevitably cause wear on the valve shaft, valve plate and other mating surfaces. In actual operation, after the valve is closed for a period of time, material residue and contamination may still occur on the outside of the valve. The sealing cover installed on the outside of the valve is a split sealing cover, which is not easy to open automatically and requires manual operation. The low degree of automation poses inconvenience to personnel and the risk of contact with materials.

[0039] The following combination Figures 1 to 9 , describing the embodiments of the present utility model.

[0040] According to an embodiment of the present invention, on the one hand, a closing valve is provided for closing the outer flow passage of the valve 4, and the closing valve includes:

[0041] The valve seat 1 is fixedly connected to the valve 4. The valve seat 1 is provided with a through hole 101 corresponding to the outer flow channel of the valve 4. The through hole 101 is located outside the outer flow channel.

[0042] The valve plate 2 is hingedly connected to the valve seat 1. The valve plate 2 has a first state in which the through hole 101 is blocked, and a second state in which the through hole 101 is at least partially exposed.

[0043] The valve handle 7 is fixedly connected to the valve plate 2 so as to be suitable for driving the valve plate 2 to switch between the first state and the second state through the valve handle 7 .

[0044] The closing valve provided in this embodiment has a valve plate 2 hinged to the valve seat 1, and the valve plate 2 is rotated around the hinge axis between the valve plate 2 and the valve seat 1 to facilitate switching between the first state and the second state. The structure is simple and the operation is convenient. The valve plate 2 is driven to rotate around the hinge axis between the valve plate 2 and the valve seat 1 by the valve handle 7 to avoid direct contact between the operator and the valve plate 2, thereby avoiding the risk of contact with the material.

[0045] Specifically, at least one valve 4 is mounted on a container 5. Material within the container 5 is suitable for feeding and / or discharging through the valve 4. The outer flow channel of the valve 4 is susceptible to adhesion of material and environmental foreign matter. Each valve 4 is fixedly connected to a valve seat 1, at least part of which is located on the side of the valve 4 facing away from the container 5. A through hole 101 communicates with the outer flow channel of the valve 4 and is located on the side of the outer flow channel facing away from the container 5.

[0046] The valve handle 7 can be fixedly connected to the valve plate 2 via a locking member 16, which can include screws, rivets, or quick-release pins. Furthermore, the valve handle 7 can be welded, clamped, or bonded to the valve plate 2 to achieve a fixed connection between the valve handle 7 and the valve plate 2. The valve handle 7 drives the valve plate 2 to rotate about its hinge axis with the valve seat 1, thereby switching the valve plate 2 between a first state and a second state. When the valve plate 2 is in the second state, material is suitable for entering or being discharged from the container 5 through the through-hole 101 and the external flow channel. When the valve plate 2 is in the first state, the valve plate 2 fits against the end surface of the valve seat 1 away from the valve 4, covering the through-hole 101 and the external flow channel. Consequently, when the valve 4 is closed, a sealed space is formed between the valve disc of the valve 4, the external flow channel of the valve 4, the through-hole 101, and the valve plate 2, thereby sealing and protecting the external flow channel. This prevents material adhering to the external flow channel from polluting the environment or harming the health of the operator, and prevents foreign matter from adhering to the external flow channel. The closing valve provided in this embodiment has a simple and reliable structure, a long continuous service life, greatly reduced procurement cost and operating cost, and can adapt to application environments where valves such as barrel mixers have impact loads.

[0047] Additionally, a localized area on the end surface of the valve seat 1, facing away from the valve 4, is recessed to form a mounting groove 21. The mounting groove 21 is arranged in a circle around the axis of the through hole 101, and there is at least one mounting groove 21. A sealing ring 10 is disposed within the mounting groove 21, with a portion of the sealing ring 10 exposed. When the valve plate 2 is in the second state, the valve plate 2 and the valve seat 1 jointly squeeze the sealing ring 10, thereby enhancing the sealing effect of the valve plate 2 on the through hole 101. The cross-sectional shape of the annular groove is trapezoidal.

[0048] As a feasible implementation, a connecting pipe 9 is fixedly connected between the valve seat 1 and the valve 4. The fixed connection forms include flange connection, threaded connection, or welding, so as to facilitate connection with valves 4 of different specifications. A through-channel 901 is formed in the connecting pipe 9 to facilitate the passage of materials.

[0049] In one embodiment, combined Figures 1 to 9 As shown, a sleeve 20 is provided on the valve seat 1 , and the valve plate 2 and / or the valve handle 7 are connected to the sleeve 20 and are hinged to the valve seat 1 through the sleeve 20 .

[0050] Specifically, the valve plate 2 is fixedly connected to the valve handle 7. As a feasible implementation form, the sleeve 20 is rotatably disposed on the valve seat 1, the valve plate 2 is fixedly connected to the sleeve 20, and the valve handle 7 is adapted to be indirectly fixedly connected to the sleeve 20 through the valve plate 2; or the valve handle 7 is fixedly connected to the sleeve 20, and the valve plate 2 is adapted to be indirectly fixedly connected to the sleeve 20 through the valve handle 7; or the valve plate 2 and the valve handle 7 are simultaneously fixedly connected to the sleeve 20, so that the valve plate 2 can rotate around the axis of the sleeve 20 relative to the valve seat 1, wherein the fixed connection form can be a split fixed connection or an integrally manufactured and formed one.

[0051] As an additional embodiment, the sleeve 20 is fixedly connected to the valve seat 1, the valve plate 2 is rotatably connected to the outer peripheral side of the sleeve 20, and the valve handle 7 is rotatably connected to the sleeve 20 through the valve plate 2; or the valve handle 7 is rotatably connected to the outer peripheral side of the sleeve 20, and the valve plate 2 is rotatably connected to the sleeve through the valve handle 7; or the valve plate 2 and the valve handle 7 are simultaneously rotatably connected to the outer peripheral side of the sleeve 20, so that the valve plate 2 can rotate around the axis of the sleeve 20 relative to the valve seat 1.

[0052] In one embodiment, combined Figures 1 to 9 As shown, the sleeve 20 is rotatably arranged on the valve seat 1, and the axis of the sleeve 20 is parallel to the axis of the through hole 101. A bearing seat 14 is provided on the side of the valve seat 1 facing away from the valve plate 2. A first bearing 15 is provided inside the bearing seat 14. The sleeve 20 passes through the valve seat 1 and is passed through the inner ring of the first bearing 15.

[0053] The closing valve provided in this embodiment provides a first bearing 15 on the outer peripheral side of the sleeve 20 so that the sleeve 20 forms a rotational connection with the valve seat 1 through the first bearing 15, which is beneficial to reducing wear between the sleeve 20 and the valve seat 1, and fixes the relative position of the first bearing 15 and the valve seat 1 through the bearing seat 14, which is beneficial to improving the rotational stability of the sleeve 20.

[0054] Specifically, when the sleeve 20 is rotated and positioned on the valve seat 1, a local area of ​​the side surface of the bearing seat 14 near the valve seat 1 is recessed to form a groove, and the first bearing 15 is disposed in the groove. The bearing seat 14 is adapted to fix the relative position of the first bearing 15 and the valve seat 1. A clearance hole 102 is formed through the area of ​​the valve seat 1 corresponding to the sleeve 20. A portion of the sleeve 20 passes through the clearance hole 102 and is inserted into the interior of the inner ring of the first bearing 15, so that the first bearing 15 limits the sleeve 20 in the radial direction, thereby improving the rotational stability of the sleeve 20. Preferably, the opening size of the clearance hole 102 is larger than the outer diameter of the sleeve 20 to reduce wear between the sleeve 20 and the valve seat 1.

[0055] In one embodiment, combined Figures 1 to 9As shown, a rod body 6 is passed through the sleeve 20, and a limiting portion 601 is provided at the first end of the rod body 6, which abuts against the side of the sleeve 20 away from the bearing seat 14, and the second end of the rod body 6 passes through the bearing seat 14, and a tightening assembly is provided at the second end of the rod body 6, which abuts against the side of the bearing seat 14 away from the sleeve 20.

[0056] The closing valve provided in this embodiment abuts against one end face of the sleeve 20 through the limiting portion 601, and abuts against the side of the bearing seat 14 facing away from the sleeve 20 through the clamping assembly, thereby clamping the sleeve 20 between the bearing seat 14 and the limiting portion 601, thereby providing a certain pre-tightening force between the valve plate 2 and the valve seat 1.

[0057] Specifically, as a feasible embodiment, the rod 6 directly contacts the sleeve 20. The bearing seat 14 includes a partition 141, which is located between the inner ring of the first bearing 15 and the abutment assembly and is adapted to rotate relative to the bearing seat body. In this case, the partition 141, the abutment assembly, and the rod 6 rotate with the rotation of the sleeve 20 and the inner ring of the first bearing 15. As an additional embodiment, at least one second bearing is sleeved on the rod 6, and the second bearing is located between the sleeve 20 and the rod 6. The rod 6 is rotatably connected to the sleeve 20 via the second bearing. The limiting portion 601 and the sleeve 20 are in relative abutment and sliding engagement. In this case, the rod 6 and the abutment assembly do not rotate with the rotation of the sleeve 20.

[0058] Along the radial direction of the rod body 6, the limiting portion 601 protrudes from the outer peripheral wall of the rod body 6 to abut against the end face of the sleeve 20 away from the bearing seat 14. The clamping assembly is connected to the second end of the rod body 6 and abuts against the side of the bearing seat 14 away from the sleeve 20, thereby clamping the sleeve 20 between the bearing seat 14 and the limiting portion 601. Because the valve plate 2 and / or the valve handle 7 are fixedly connected to the sleeve 20 when the sleeve 20 is rotated and disposed on the valve seat 1, a certain preload force is exerted between the valve plate 2 and the valve seat 1, thereby enhancing the sealing effect of the valve plate 2.

[0059] In one embodiment, combined Figures 1 to 9 As shown, the clamping assembly includes an adjusting member 12 and a first elastic member 11. The adjusting member 12 is connected to the rod body 6. Along the axial direction of the rod body 6, the adjusting member 12 and the rod body 6 have multiple connection positions. The first elastic member 11 is arranged between the adjusting member 12 and the bearing seat 14, and the first elastic member 11 is in a compressed state.

[0060] The closing valve provided in this embodiment adjusts the magnitude of the pre-tightening force between the valve plate 2 and the valve seat 1 by changing the connection position of the adjusting member 12 on the rod body 6 .

[0061] Specifically, the adjustment member 12 comprises a pin or a nut. When the adjustment member 12 is configured as a nut, the second end of the rod 6 is provided with an external thread. There is at least one nut. By rotating the nut to adjust the relative position of the nut and the rod 6, the compression of the first elastic member 11 is changed, thereby adjusting the preload force between the valve plate 2 and the valve seat 1. When the adjustment member 12 is configured as a pin, the second end of the rod 6 is provided with multiple pin holes, which are spaced apart along the axis of the rod 6. By inserting pins into different pin holes, the compression of the first elastic member 11 is changed, thereby adjusting the preload force between the valve plate 2 and the valve seat 1. The first elastic member 11 comprises a spring, a rubber sleeve, etc.

[0062] A movable plate 13 is disposed between the adjustment member 12 and the first elastic member 11. This plate 13 is movably mounted on the rod 6 and adapted to move along the axis of the rod 6. The ends of the first elastic member 11 abut against the bearing seat 14 and the movable plate 13, respectively. Furthermore, the adjacent sides of the bearing seat 14 and the movable plate 13 form retaining grooves corresponding to the first elastic member 11, thereby enhancing the stability of the abutment between the first elastic member 11, the bearing seat 14, and the movable plate 13.

[0063] In one embodiment, combined Figures 1 to 9 As shown, the closing valve further includes a pressure plate 3 , which is fixedly connected to the valve seat 1 , and at least a portion of the pressure plate 3 is located on the side of the valve plate 2 facing away from the valve seat 1 , so as to be suitable for abutting against the side of the valve plate 2 facing away from the valve seat 1 .

[0064] The closing valve provided in this embodiment abuts against the valve plate 2 via the pressure plate 3 so as to press the valve plate 2 tightly against the valve seat 1 , which helps to ensure the sealing effect of the valve plate 2 in blocking the through hole 101 .

[0065] Specifically, the pressure plate 3 is suitable for limiting the side of the valve plate 2 away from the valve seat 1. When the valve plate 2 is in the first state, the pressure plate 3 abuts against the valve plate 2 to ensure the sealing effect of the valve plate 2 blocking the through hole 101. As a preferred embodiment, Figure 7 As shown, when the valve plate 2 is in the second state, a portion of the valve plate 2 is still located between the pressure plate 3 and the valve seat 1 to ensure reliable support for the valve plate 2 .

[0066] In one embodiment, combined Figures 1 to 9 As shown, an operating rod 8 is provided at one end of the valve handle 7 away from the valve plate 2 , so as to be suitable for driving the valve handle 7 to move through the operating rod 8 .

[0067] Specifically, one end of the valve handle 7 is directly or indirectly fixedly connected to the sleeve 20, and the other end extends in a direction away from the valve plate 2. The operating rod 8 is located at the end of the valve handle 7 away from the valve plate 2, and the axial direction of the operating rod 8 is perpendicular to the extension direction of the valve handle 7. The operator drives the valve plate 2 to rotate through the operating rod 8 to increase the torque and reduce the force required to drive the valve plate 2 to rotate by moving the operating rod 8.

[0068] In one embodiment, combined Figures 1 to 9 As shown, the closing valve further comprises a driving member connected to the operating rod 8 , and the driving member is suitable for driving the operating rod 8 to move.

[0069] The closing valve provided in this embodiment controls the operating lever 8 through a driving member, eliminating the need for manual operation by an operator, thereby reducing labor intensity, improving the degree of automation of the closing valve, and avoiding the risk of personnel coming into contact with materials.

[0070] Specifically, the driving member includes a servo motor, a hydraulic cylinder or a pneumatic cylinder that can output linear displacement. One end of the driving member is hinged to the valve seat 1, and the other end is hinged to the operating rod 8, thereby being able to drive the operating rod 8 to rotate around the sleeve 20.

[0071] In one embodiment, combined Figures 1 to 9 As shown, the closing valve further includes a positioning assembly, which includes a positioning ball 19 . A positioning groove 201 is provided on the valve plate 2 . When the valve plate 2 is in the first state, a portion of the positioning ball 19 extends into the positioning groove 201 .

[0072] The closing valve provided in this embodiment allows a portion of the positioning ball 19 to extend into the positioning groove 201 to form a damping torque when the valve plate 2 is opened, which helps to avoid malfunction of the valve plate 2 from accidentally opening.

[0073] Specifically, the number of positioning assemblies is at least one. As a feasible embodiment, a local area of ​​the end surface of the pressure plate 3 near the valve seat 1 is recessed to form a positioning hole 171. As an additional embodiment, the positioning assembly further includes a pressing seat 17, which is fixedly connected to the side of the pressure plate 3 facing away from the valve seat 1 and has a hole opening toward the valve seat 1. The pressure plate 3 has a through hole corresponding to the hole, and the hole and the through hole together constitute the positioning hole 171. The positioning assembly further includes a second elastic member 18 and a positioning ball 19 disposed within the positioning hole 171. The second elastic member 18 is located on the side of the positioning ball 19 facing away from the valve seat 1 and abuts against the inner wall of the end of the positioning hole 171 facing away from the opening. The second elastic member 18 may include a spring, a rubber sleeve, or the like. A limit block is provided at the opening of the positioning hole 171. The limit block is adapted to abut against the spherical surface of the positioning ball 19 to prevent the positioning ball 19 from disengaging from the positioning hole 171. Preferably, when the positioning ball 19 abuts against the limit block, the second elastic member 18 is in a compressed state. When the valve plate 2 is in the first state, the abutment force between the positioning ball 19 and the positioning groove 201, and the friction force between the valve plate 2 and the sealing ring 10 together constitute an appropriate damping torque when the valve plate 2 is opened, so that the valve plate 2 needs to overcome the above-mentioned abutment force and friction force before it can be opened, thereby avoiding the malfunction of the valve plate 2 accidentally opening.

[0074] According to an embodiment of the present invention, on the other hand, a container assembly is provided, including: the above-mentioned closing valve.

[0075] Specifically, the container 5 has a cavity for accommodating materials. At least one valve 4 is connected to the container 5. The valve 4 has an open state (open state) in which the valve flap is open to facilitate material feeding and / or discharging, and a closed state (closed state) in which the valve flap is closed to prevent material feeding and / or discharging. A blocking valve is connected to the valve 4 to seal the outer flow channel of the valve 4 when the valve 4 is closed. The bottom of the container 5 is provided with multiple rollers 22 to facilitate the movement of the container 5.

[0076] Obviously, the above embodiments are merely examples for the purpose of clarity of explanation and are not intended to limit the implementation methods. Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the present invention.

Claims

1. A closing valve, characterized in that: Used for closing the outer flow passage of the valve (4), the closing valve comprising: A valve seat (1) is fixedly connected to the valve (4), and the valve seat (1) is provided with a through hole (101) corresponding to an outer flow channel of the valve (4), and the through hole (101) is located outside the outer flow channel; a valve plate (2) hingedly connected to the valve seat (1), the valve plate (2) having a first state of blocking the through hole (101) and a second state of at least partially exposing the through hole (101); A valve handle (7) is fixedly connected to the valve plate (2) and is suitable for driving the valve plate (2) to switch between the first state and the second state through the valve handle (7).

2. The closing valve according to claim 1, characterized in that A sleeve (20) is provided on the valve seat (1); the valve plate (2) and / or the valve handle (7) are connected to the sleeve (20) and are hinged to the valve seat (1) via the sleeve (20).

3. The closing valve according to claim 2, characterized in that The sleeve (20) is rotatably arranged on the valve seat (1), and the axis of the sleeve (20) is parallel to the axis of the through hole (101). A bearing seat (14) is arranged on the side of the valve seat (1) away from the valve plate (2), and a first bearing (15) is arranged inside the bearing seat (14). The sleeve (20) passes through the valve seat (1) and is inserted into the inner ring of the first bearing (15).

4. The closing valve according to claim 3, characterized in that A rod body (6) is passed through the sleeve (20), and a limiting portion (601) is provided at the first end of the rod body (6), and the limiting portion (601) abuts against the side of the sleeve (20) facing away from the bearing seat (14); the second end of the rod body (6) passes through the bearing seat (14), and a tightening component is provided at the second end of the rod body (6), and the tightening component abuts against the side of the bearing seat (14) facing away from the sleeve (20).

5. The closing valve according to claim 4, characterized in that The tightening assembly includes an adjusting member (12) and a first elastic member (11); the adjusting member (12) is connected to the rod body (6); along the axial direction of the rod body (6), the adjusting member (12) and the rod body (6) have multiple connection positions; the first elastic member (11) is arranged between the adjusting member (12) and the bearing seat (14), and the first elastic member (11) is in a compressed state.

6. The closing valve according to claim 3, characterized in that The closing valve further comprises a pressure plate (3), the pressure plate (3) being fixedly connected to the valve seat (1), and at least a portion of the pressure plate (3) being located on the side of the valve plate (2) facing away from the valve seat (1), so as to be suitable for abutting against the side of the valve plate (2) facing away from the valve seat (1).

7. The closing valve according to any one of claims 1 to 6, characterized in that An operating rod (8) is provided at one end of the valve handle (7) away from the valve plate (2), so as to be suitable for driving the valve handle (7) to move via the operating rod (8).

8. The closing valve according to claim 7, characterized in that The closing valve further comprises a driving member connected to the operating rod (8), and the driving member is suitable for driving the operating rod (8) to move.

9. The closing valve according to any one of claims 1 to 6, characterized in that The closing valve further comprises a positioning assembly, the positioning assembly comprising a positioning ball (19), a positioning groove (201) is provided on the valve plate (2), and when the valve plate (2) is in the first state, a portion of the positioning ball (19) extends into the positioning groove (201).

10. A container assembly, characterized in that: include: The closing valve according to any one of claims 1 to 9.

Images