Opening and closing device of ton barrel cover body

Abstract

The utility model discloses an opening and closing device for a cover body of a feed port and a discharge port of a ton barrel, one end of the opening and closing device is a large-diameter end, the other end of the opening and closing device is a small-diameter end, the large-diameter end and the small-diameter end are connected through a handle, the small-diameter end forms a sleeve cage, the sleeve cage is of a hollow structure and is hollow and internally circular, and the opening and closing device is arranged in the sleeve cage. The hollow structure is connected with the handle through a connecting rod, and the sleeve cage is provided with a central axis extending in the axis direction of the handle; and the large-diameter end is of a hollow structure, and the hollow structure is an inner circle. According to the opening and closing tool, through the ingenious design of the fixed protruding strips and the movable protruding strips at the specific positions of the two ends of the opening and closing tool, the opening and tightening problems of the ton barrel cover body with any radius and any number of reinforcing ribs within a certain range can be solved.

Description

Technical Field

[0001] The present application belongs to the field of chemical industry, and relates to an opening and closing device for a ton barrel cover, and specifically to an opening or tightening tool for an inlet and outlet cover of a ton barrel, which can be widely used in the fields of agriculture, chemical industry, food, etc. Background Art

[0002] Barrels and larger intermediate bulk containers (IBC or Totes) are widely used in the fields of agriculture, chemical industry, food, etc. for the storage and transportation of various raw materials, semi-finished products or finished products. Usually, a square barrel that can hold about one ton of liquid materials is also called a ton barrel, a kiloliter barrel, a ton packaging barrel, a square barrel, a container barrel, an IBC barrel, a ton barrel, a ton barrel, a ton square barrel, a ton tank, etc.

[0003] A fixed metal frame is set on the outer side of the ton barrel, and a metal or plastic tray is set at the bottom to protect the ton barrel. A feed port can be set on the top of the ton barrel (for example, the middle of the upper top surface) to fill the ton barrel with materials. The bottom side of the ton barrel is usually equipped with a discharge valve and a discharge pipe. The discharge valve is provided with a discharge port outside to directly discharge the material. The feed port and discharge port of the ton barrel are equipped with matching covers.

[0004] When feeding or discharging is required, the lid of the ton barrel needs to be opened or tightened. Sometimes the operator will tighten or open the lid of the ton barrel's inlet and outlet by hand. However, the lid of the ton barrel's inlet is large, and the commonly used tools are too small and not suitable. Both hands are required to generate torque for rotation. Sometimes the lid of the inlet is set in the center of the top surface of the ton barrel, and the operator needs to step on the ton barrel frame or the edge of the pallet and tilt his upper body to touch the lid of the inlet.

[0005] For the discharge port, the cover is often located at the bottom of the side of the barrel and in the middle of the pallet, and sometimes it is located exactly on the discharge pipe in a recessed position, making it difficult to find a suitable opening or tightening tool that can be used in the recessed position.

[0006] When a ton barrel is filled with liquid materials, the inlet and outlet covers that are tightened by hand may be very loose. During storage and long-distance transportation, the shaking of liquid materials, collision and friction between ton barrels will cause the discharge valve to loosen. If the cover is not firm at this time, material leakage is very likely to occur. Because most of the materials in the ton barrel are toxic and harmful to the human body or pollute the environment, the leakage of materials will pollute the transportation vehicle at the least, and the environment will be polluted at the worst, causing personal injury.

[0007] Therefore, after packaging the materials, in addition to closing the discharge valve in place, it is very important to tighten the feed and discharge port covers of the ton barrel firmly. In addition, opening the feed and discharge ports of the ton barrel also needs to be easy to operate.

[0008] Although the feed port cover and the discharge port cover of a ton barrel have different sizes, their structures are similar. A number of reinforcing ribs connected to the cover body are provided on the outer circumference of the cover body. In order to tighten the cover body, if a hammer or a flat screwdriver is used to hit the reinforcing ribs, sometimes the reinforcing ribs will break. Sometimes the discharge port cover is located in a concave position and is difficult to hit.

[0009] Although the number of ribs on the lid of a ton barrel manufactured by different manufacturers is different, the inner diameter and thread size of most lids are universally compatible. The number of ribs is usually within 12, such as 4, 6, 8, 10, 12 even numbers, or 3, 5, 7, 9, 11 odd numbers.

[0010] Currently, there is no suitable tool for opening or tightening the cover on the market that can be universally used for the above-mentioned covers with different numbers of reinforcing ribs. Operators often need to make different opening or tightening tools to deal with ton barrels manufactured by different manufacturers. Therefore, how to design an opening and closing device that can open or tighten covers with different numbers of reinforcing ribs to meet the opening and closing of the discharge and feed ports of ton barrels with different numbers of reinforcing ribs is a technical problem that needs to be solved in this field. Utility Model Content

[0011] In order to overcome the defects of the prior art, the present application provides an opening and closing device capable of opening and closing (tightening) a cover body with different numbers of reinforcing ribs. The technical solution adopted by the present application is as follows:

[0012] An opening and closing device for a cover body of a feed port and a discharge port of a ton barrel, wherein one end of the opening and closing device is a large-diameter end and the other end is a small-diameter end, and the large-diameter end and the small-diameter end are connected by a handle.

[0013] The small diameter end forms a cage, the cage is a hollow structure with an inner circular shape, the hollow structure is connected to the handle through a connecting rod, the cage has a central axis extending along the axial direction of the handle; and

[0014] The large diameter end is a hollow structure with an inner circular shape, and the hollow structure of the large diameter end is provided with a fixed convex strip and / or a movable convex strip; wherein, the large diameter end is provided with an oblique support member on each side of the handle, and the two oblique support members are symmetrically distributed in an eight-shaped shape. It is known to those skilled in the art that the cross section of the oblique support member can be of any shape, and this application does not limit it.

[0015] Preferably, there are multiple connecting rods, and they are configured to equally divide the outer wall of the hollow structure of the cage.

[0016] Preferably, the cross section of the connecting rod is circular or square.

[0017] Preferably, the plane where the inner circle of the hollow structure of the large diameter end is located is perpendicular to the plane where the inner circle of the hollow structure of the cage is located. For example, when the inner circular plane of the large diameter end remains horizontal, the cage is oriented to the left or right.

[0018] Preferably, the cover body is provided with n reinforcing ribs evenly distributed around the circumference of the cover body. The n reinforcing ribs are evenly distributed over 360°. The large diameter end of the opening and closing device may be provided with a plurality of convex strips, including fixed convex strips and / or movable convex strips. Each convex strip will contact with each reinforcing rib on the cover body correspondingly.

[0019] According to the number of reinforcing ribs evenly distributed on the ton barrel cover, as shown in Table 1, the inventors analyzed the number and position of the convex strips in the opening and closing device.

[0020] Table 1 Distribution of convex strips in the cover with different numbers of reinforcing ribs

[0021]

[0022] According to the frequency of occurrence of the central angle of the convex strip, it can be concluded that:

[0023] The fixed convex strips of the first key point are arranged inside the hollow structure of the large diameter end and the small diameter end, and the angle between the fixed convex strips and the center of the circle is 0°. As the starting point, this is also equivalent to 360°, which is the same point.

[0024] Furthermore, the fixed convex strip position on the hollow structure at the other end extending along the inner circle diameter corresponding to the first key point is set as the second key point. Therefore, the central angle formed by the first key point and the second key point is 180°.

[0025] Furthermore, the mth key point ① or the mth key point ② rotates counterclockwise with the first key point as a starting point, and forms a central angle with the first key point, wherein m is greater than 2.

[0026] The central angle and other angles in Table 1 are the central angles formed by a certain key point rotating counterclockwise from the first key point and the first key point. Therefore, in the counterclockwise direction, the first m-th key point is defined as the m-th key point ①, and the m-th key point that appears later is defined as the m-th key point ②. Except for the first and second key points, the lines connecting the other m-th key points ① and the m-th key points ② intersect at the center of the circle. The radius of the line connecting the m-th key point ① and the center of the circle (or the extension of the radius) intersects the inner circle at the m-th key point ②. The m-th key point ① and the m-th key point ② are symmetrical with the diameter as the criterion.

[0027] Furthermore, the point on the inner circle corresponding to the convex strip with a central angle of 120° is the third key point ①. That is, when m is equal to 3, the third key point ① or the third key point ② rotates counterclockwise from the first key point, and the central angle formed with the first key point is 120° or 240°.

[0028] Furthermore, the point on the inner circle corresponding to the convex strip with a central angle of 240° is the third key point ②.

[0029] Furthermore, the point on the inner circle corresponding to the convex strip with a central angle of 90° is the fourth key point ①. That is, when m is equal to 4, the fourth key point ① or the fourth key point ② rotates counterclockwise from the first key point as the starting point, and the central angle formed with the first key point is 90° or 270°.

[0030] Furthermore, the point on the inner circle corresponding to the convex strip with a central angle of 270° is the fourth key point ②.

[0031] Furthermore, the point on the inner circle corresponding to the convex strip with a central angle of 60° is the fifth key point ①. That is, when m is equal to 5, the fifth key point ① or the fifth key point ② rotates counterclockwise from the first key point as the starting point, and the central angle formed by the fifth key point ① or the fifth key point ② with the first key point is 60° or 300°.

[0032] Furthermore, the point on the inner circle corresponding to the convex strip with a central angle of 300° is the fifth key point ②.

[0033] In addition, the inventors found that although the convex strip with a central angle of 72° has the same frequency of occurrence as the convex strip with a central angle of 60°, it is too close to the central angle of 90°, so the central angle of 60° can be preferably selected as the fifth key point. In practical applications, the points on the inner circle corresponding to the central angles of 5, 7, and 11 equal parts are not considered for the time being because they have low repeatability with the above angles.

[0034] Further, the first key point takes precedence over the second key point, and so on.

[0035] Furthermore, the mth key point ① takes precedence over the mth key point ②.

[0036] Furthermore, the large diameter end often takes the inner point of the inner circle directly connected to the handle as the starting point, and the small diameter end can select any point of the inner circle as the starting point.

[0037] Preferably, at least one sliding groove is provided on the inner circular wall of the large diameter end and / or the small diameter end, and the width of the sliding groove is adapted to the width of the hollow structure.

[0038] According to the number of reinforcing ribs evenly distributed along the circumference of the ton barrel cover, the inventor analyzed the number and feasible positions of the sliding grooves, as shown in the following Table 2. Among them, taking the semicircle of 0° to 180° as an example, the semicircle of 180° to 360° is symmetrical thereto.

[0039] Table 2 Number and possible positions of sliding slots

[0040]

[0041]

[0042] A fixed convex strip of the first key point is set inside the hollow structure of the large diameter end and the small diameter end, and the angle between it and the center of the circle is 0°. As the starting point, this is also equivalent to 360°, which is the same point.

[0043] The central angles in Table 2 are all the central angles formed by a certain key point rotating counterclockwise with the first key point as the starting point and the first key point.

[0044] Furthermore, the at least one sliding groove is located between two adjacent key points.

[0045] Furthermore, the first sliding groove is set at a position where the central angle formed by the first key point is 120° to 180° by rotating counterclockwise from the first key point as the starting point. That is, the sliding groove between the third key point ① and the second key point, that is, the first sliding groove ① is between 120° and 180°.

[0046] Furthermore, the sliding groove between the second key point and the third key point ②, that is, between 180° and 240°, is the first sliding groove ②.

[0047] Furthermore, the second sliding groove is set at a position where the central angle formed by the first key point is 0° to 60° by rotating counterclockwise from the first key point as the starting point. That is, the sliding groove between the first key point and the fifth key point ①, that is, between 0° and 60°, is the second sliding groove ①.

[0048] Furthermore, the sliding groove between the fifth key point ② and the first key point, that is, between 300° and 0°, is the second sliding groove ②.

[0049] Furthermore, the third sliding groove is set at a position where the central angle formed by the first key point is 60° to 90° by rotating counterclockwise from the first key point. That is, the sliding groove between the fifth key point ① and the fourth key point ①, that is, between 60° and 90° is the third sliding groove ①.

[0050] Furthermore, the sliding groove between the fourth key point ② and the fifth key point ②, that is, between 270° and 300°, is the third sliding groove ②.

[0051] Furthermore, the fourth sliding groove is set at a position where the central angle formed by the first key point is 90° to 120°, starting from the first key point and rotating counterclockwise. That is, the sliding groove between the fourth key point ① and the third key point ①, that is, between 90° and 120°, is the fourth sliding groove ①.

[0052] Furthermore, the sliding groove between the third key point ② and the fourth key point ②, that is, between 240° and 270° is the fourth sliding groove ②.

[0053] The first level sliding slot takes precedence over the second level sliding slot, and so on. The mth level sliding slot ① takes precedence over the mth level sliding slot ②.

[0054] Table 3 below shows the key points and sliding slots summarized in the range of 0° to 360°.

[0055] Table 3

[0056]

[0057] Furthermore, at least one of the sliding grooves is an E-shaped butterfly bolt. The E-shaped butterfly bolt can move along the arc surface of the inner circle limited by the sliding groove, and can also move along the radial direction of the sliding groove. When the E-shaped butterfly bolt moves to an appropriate position, a butterfly nut is used to fix it in place. As an example, the opening direction of the E-shaped butterfly bolt faces outward, and the vertical side is located within the arc surface of the inner circle.

[0058] Furthermore, the upper and lower sides of the E-shaped butterfly bolt are clamped at the upper and lower edges of the large diameter end or the small diameter end. The middle horizontal position of the E-shaped butterfly bolt is located in the radial direction of the arc surface of the inner circle, that is, the middle position of the "E" bolt rod is inserted into the sliding groove, and a butterfly nut is arranged on the outer side of the inner circle.

[0059] As an example, the upper and lower inner arcs at the sliding groove have depressions of equal size, so that the upper and lower sides of the "E" are stuck at the upper and lower edges of the sliding groove and are at the same height as other positions on the inner arc surface.

[0060] Preferably, the number of the E-shaped butterfly bolts is less than the number of the sliding slots.

[0061] Preferably, the E-shaped butterfly bolt is located in a high-level sliding groove.

[0062] Furthermore, the width of the sliding groove is smaller than the contact surface diameter of the butterfly nut, thereby preventing the butterfly nut from passing through the sliding groove.

[0063] Furthermore, the vertical side of the E-shaped butterfly bolt plays the role of moving the convex strip.

[0064] Furthermore, the middle horizontal position of the E-shaped butterfly bolt is inserted into the sliding groove, and the middle position bolt rod of the "E" is provided with at least one hexagonal bolt and a butterfly nut on the inner arc wall, which can be used to fix the position of the middle position bolt rod of the "E" when the diameter difference between the cover body and the opening and closing device is large.

[0065] Therefore, according to the various combinations of the key points at various levels, the number and position of the sliding grooves at various levels, and the number and position of the moving convex strips, large diameter ends and small diameter ends of different shapes and structures can be formed. As an example, the combination of the five-level key points and the first sliding groove can meet the requirements of opening the cover body with any number of reinforcing ribs, while the processing of the fixed convex strips is simple, and there is no need to frequently move the convex strips. As known to those skilled in the art, taking the five-level key points and the four-level sliding groove as an example, the number of moving convex strips, the level position of the sliding groove where the moving convex strips are located, and the internal and mutual parts thereof can be arbitrarily combined into structures of any shape, so that tools of various shapes can be arbitrarily combined. Further, among various combinations, the preferred choice is to delete the fixed convex strips or sliding grooves at the key points with low priority and retain the fixed convex strips or sliding grooves at the key points with high priority, as well as the moving convex strips in the sliding grooves with lower levels. This selection method will make the convex strips and the reinforcing ribs of the inlet and outlet cover of the ton barrel contact the most opportunities under the same number of fixed convex strips or sliding grooves (moving convex strips). After deleting the first key point, among the retained key points, any key point can be designated as the new first key point in the new combination state, and the priority levels of other key points can be analyzed.

[0066] Furthermore, after deleting some key points, the inner circle structure may also become a non-closed loop arc shape of 3 / 4, 1 / 2 or other shapes.

[0067] Taking the case where there are 8 fixed ribs and 1 sliding groove at the large diameter end and the small diameter end as an example, the force contact points of the ton barrel cover body with different numbers of reinforcing ribs are analyzed as shown in Table 4 below.

[0068] Table 4

[0069]

[0070]

[0071] When there is no movable rib, when the number of reinforcing ribs is an odd number and a prime number, such as 1, 5, 7, 11, the rib and the reinforcing rib have only one force contact point. If a movable rib is provided at this time and is moved to a suitable position, the rib and the reinforcing rib will have two force contact points. When the number of reinforcing ribs is an even number or a non-prime odd number, when there are at least 2 original force contact points, a force contact point will be added when there is a movable rib and it is moved to a suitable position. Therefore, regardless of the number of reinforcing ribs, the opening and closing device can complete the opening or tightening of the cover of the feed port and the discharge port of the ton barrel.

[0072] Preferably, when at least two movable convex strips are provided on the inner circle of the hollow structure at the large diameter end or the small diameter end, the opening and tightening of the ton barrel cover body with any radius and any number of reinforcing ribs within a certain range can be completed.

[0073] Preferably, the fixed convex strips or the movable convex strips preferably maintain the same size. 大 Represents the radius from the inner circle center to the inner wall of the hollow structure. 小 Represents the radius from the center of the inner circle of the hollow structure to the convex strip. 大 Represents the maximum radius from the center of the cover to the reinforcement rib. 小 represents the radius from the center of the cover to the outer wall of the cover without reinforcing ribs. The inventors have found that if Fig.21 As shown, 12 represents the outer wall of the ton barrel cover; 13 represents the reinforcing rib; 14 represents the convex strip; 15 represents the hollow structure; 16 represents R 大 (radius from the inner circle center to the inner wall of the hollow structure); 17 represents R 小 (radius from the inner center of the hollow structure to the convex strip); 18 represents r 大 (the maximum radius from the center of the cover to the reinforcing rib); 19 represents r 小 (The radius from the center of the cover to the outer wall of the cover without reinforcing ribs). The above radii must meet the following conditions:

[0074] 1. R 大 ≥r 大 Otherwise, the hollow structure cannot be mounted on the outer edge of the ton barrel cover.

[0075] 2. r 大 >R 小 , the purpose is to ensure that the convex strip and the reinforcing rib can contact. 大 =R 小 When the convex strip and the reinforcing rib are tangent to each other in the radial direction of the inner circle, they cannot mesh with each other.

[0076] 3. R 小 ≥r 小 Therefore, R 小 to ensure that the convex strips on the inner circle of the hollow structure are located outside the outer wall of the ton barrel cover.

[0077] 4. r 大 +Thickness of ribs>R 大 , from which we can determine R 大 The maximum value of .

[0078] 5. R 大 =R 小 + rib thickness. 大 =r 大 + rib thickness = r 小 + Rib thickness + Strip thickness = R 小 +When the rib thickness is increased, the rib and the convex strip are tangent to the radial direction of the circle and have no meshing effect.

[0079] 6. r大 =r 小 +Reinforcement Thickness

[0080] Therefore, r 大 +Thickness of ribs>R 大 ≥r 大 >R 小 ≥r 小

[0081] When the ton barrel cover body 小 and r 大 When the rib thickness is known, R can be confirmed after it is determined. 大 and R 小 For example, the r of the ton barrel cover 小 =40mm, r 大 =45mm, assuming the thickness of the reinforcement rib = 5mm, then 50mm>R 大 ≥45mm>R 小 ≥40mm

[0082] Preferably, the opening and closing device is made of 304 stainless steel by welding.

[0083] Compared with the prior art, the technical solution provided by this application has the following advantages:

[0084] The opening and closing device provided in the present application is cleverly designed, with fixed convex strips designed at special positioning points on the inner circle of the hollow structure at the large-diameter end and the small-diameter end, so that it has at least two contact force points with the reinforcing ribs of the ton barrel cover body.

[0085] The sliding groove, i.e., the movable convex strip, is added. When it moves to the appropriate position, the contact force points between the convex strip and the ribs are increased from 1 to 2 when the number of ribs is a prime number. Such a torque structure can easily open or tighten the ton barrel cover. Thus, the problem of opening and tightening the ton barrel cover with any number of ribs is theoretically solved, and it has universality. In addition, setting at least 2 movable convex strips can solve the problem of opening and tightening the ton barrel cover with any number of ribs and any radius within a certain range.

[0086] The opening and closing device of the present application also does not need to knock the barrel cover, etc., which improves safety. In addition, the opening and closing device has a simple structure and is easy to manufacture. The long handle plays a torque role in opening the barrel cover, and the large diameter end can serve as a rotating handle when the small diameter end of the cage is used, which improves work efficiency and reduces labor intensity. Because of its versatility, it reduces the need to carry multiple tools at the same time, and also reduces the burden on the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0087] The advantages and spirit of the present application can be further understood through the following detailed description and accompanying drawings.

[0088] Figure 1 A schematic diagram showing an opening and closing device equipped with 8 fixed ribs and a movable rib (sliding groove);

[0089] Figure 2 A schematic diagram of a cage configured with 8 fixed ribs and movable ribs (sliding grooves) is shown;

[0090] Figure 3 A partial enlarged schematic diagram of a cage equipped with 8 fixed ribs and movable ribs (sliding grooves) is shown;

[0091] Figure 4 A schematic diagram showing the large diameter end of the opening and closing device equipped with 8 fixed ribs and movable ribs (sliding grooves);

[0092] Figure 5 A front view of the large diameter end of the opening and closing device equipped with 8 fixed ribs and movable ribs (sliding grooves) is shown;

[0093] Figure 6 A schematic diagram of an opening and closing device with 8 fixed ribs and no movable ribs (sliding grooves) is shown;

[0094] Figure 7 A schematic diagram showing a cage having 8 fixed ribs and no movable ribs (sliding slots);

[0095] Figure 8 A partial enlarged schematic diagram of a cage configured with 8 fixed ribs and no movable ribs (sliding grooves) is shown;

[0096] Fig. 9 A schematic diagram showing the large diameter end of the opening and closing device equipped with 8 fixed ribs and no movable ribs (sliding grooves);

[0097] Fig.10 A front view of the large diameter end with eight fixed ribs and no movable ribs (sliding grooves) is shown;

[0098] Fig.11 A schematic diagram of an opening and closing device equipped with 6 fixed ribs and a movable rib (sliding groove) is shown;

[0099] Fig.12 A schematic diagram of a cage configured with 6 fixed ribs and a movable rib (sliding groove) is shown;

[0100] Fig.13 A partial enlarged schematic diagram of a cage equipped with 6 fixed ribs and movable ribs (sliding grooves) is shown;

[0101] Fig.14 A schematic diagram of the large diameter end with six fixed ribs and a movable rib (sliding groove) is shown;

[0102] Fig.15 A front view of the large diameter end with six fixed ribs and a movable rib (sliding groove) is shown;

[0103] Fig.16 A schematic diagram of an opening and closing device with six fixed ribs and no movable ribs (sliding grooves) is shown;

[0104] Fig.17 A schematic diagram of a cage with six fixed ribs and no movable ribs (sliding grooves) is shown;

[0105] Fig.18 A partial enlarged schematic diagram of a cage configured with 6 fixed ribs and no movable ribs (sliding grooves) is shown;

[0106] Fig.19 A schematic diagram of the large diameter end with six fixed ribs and no movable ribs (sliding grooves) is shown;

[0107] Fig. 20 A front view of the large diameter end with six fixed ribs and no movable ribs (sliding grooves) is shown;

[0108] Fig.21 A schematic diagram showing the dimensional relationship between the hollow structure with convex strips and the ton barrel cover body with reinforcing ribs;

[0109] Fig. 22 A schematic diagram showing the positions of eight sliding grooves configured on a hollow structure with convex strips;

[0110] Fig.23 A schematic diagram showing the corresponding points of the eight convex strips on the hollow structure;

[0111] Fig.24 One of the schematic diagrams showing an "E" butterfly bolt as a movable convex strip;

[0112] Fig.25 The second schematic diagram shows the "E" butterfly bolt as a movable convex strip;

[0113] Among them: 1 represents the large diameter end; 2 represents the diagonal support; 3 represents the handle; 4 represents the cage; 5 represents the connecting rod; 6 represents the small diameter end; 7 represents the sliding groove; 7.1 represents the first sliding groove ①; 7.2 represents the first sliding groove ②; 7.3 represents the second sliding groove ①; 7.4 represents the second sliding groove ②; 7.5 represents the third sliding groove ①; 7.6 represents the third sliding groove ②; 7.7 represents the fourth sliding groove ①; 7.8 represents the fourth sliding groove ②; 8 represents the fixed convex strip; 8.1 represents the first key point; 8.2 represents the second key point; 8.3 represents the third key point ①; 8.4 represents the third key point ②; 8.5 represents the fourth key point ①; 8.6 represents the fourth key point ②; 8.7 represents the fifth key point ①; 8.8 represents the fifth key point ②; 9 represents the "E" butterfly bolt (movable convex strip); 10 represents the bolt rod; 11 represents the butterfly nut; 12 represents the outer wall of the ton barrel cover; 13 represents the reinforcing rib; 14 represents the convex strip; 15 represents the hollow structure; 16 represents R 大 (radius from the inner circle center to the inner wall of the hollow structure); 17 represents R 小 (radius from the inner center of the hollow structure to the convex strip); 18 represents r 大 (the maximum radius from the center of the cover to the reinforcing rib); 19 represents r 小 (The radius between the center of the cover and the outer wall of the cover without reinforcing ribs). DETAILED DESCRIPTION

[0114] The specific embodiments of the present application are described in detail below in conjunction with the accompanying drawings. However, the present application should be understood as not being limited to the implementation described below, and the technical concept of the present application can be implemented in combination with other known technologies or other technologies with the same functions as those known technologies.

[0115] In the description of the following specific embodiments, in order to clearly demonstrate the structure and working method of the present application, many directional words will be used for description, but words such as "front", "rear", "left", "right", "outside", "inside", "outward", "inward", "axial", and "radial" should be understood as convenient terms and should not be understood as restrictive terms.

[0116] In the description of the following specific embodiments, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application 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 are therefore not to be construed as a limitation on the present application.

[0117] The terms "upwardly", "downwardly", "above", and "below" are made with reference to the central longitudinal axis of the tube. Thus, the terms "upwardly" and "downwardly" should be understood to refer to directions away from and toward the longitudinal axis. Furthermore, when a first structure is described as being positioned "above" or "below" a second structure, this should be understood to mean that the first structure is positioned farther or closer to the longitudinal axis.

[0118] In addition, the terms "first" and "second" are only used for descriptive purposes, and do not refer to the limitation of time sequence, quantity, or importance. They cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features, but are only for distinguishing one technical feature from another technical feature in the technical solution. Thus, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically specified. Similarly, the qualifiers similar to "one" appearing in this article do not refer to the limitation of quantity, but describe technical features that have not appeared in the previous text. Similarly, unless it is a noun modified by a specific quantitative quantifier, it should be regarded as including both singular and plural forms in this article, and the technical solution can include both singular and plural technical features. Similarly, modifiers similar to "approximately" and "approximately" appearing before the numerals in this article usually include the number itself, and their specific meanings should be understood in conjunction with the context.

[0119] It should be understood that in the present application, "at least one (item)" means one or more, and "plurality" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0120] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be fixedly connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. "Fixedly connected" or "fixedly connected" or "non-movably connected" is understood to mean that the connection between two or more structural members is not constructed to provide relative movement. An example of a fixed connection is a welded connection or a bolted connection, and in some cases a weld and a bolted connection. "Moveably connected" or "movable" or "movable connection" is understood to mean a connection between two or more structural members that allows horizontal and / or vertical relative movement between the members under extreme dynamic loads. Such a connection generally does not allow movement under static loads or general dynamic loads (for example, as applied by light / moderate wind).

[0121] The terms “unit”, “item”, “thing”, and “module” described in the present specification mean a unit for processing at least one function and operation, and may be implemented by a hardware component or a software component and a combination thereof.

[0122] The term "sealed connection" or "sealable connection" denotes the following feature: two component containers are connected or connectable by welding, adhesive bonding, threading or other means, so that when pressure is built up to empty the multi-chamber mixing container, no contents can leak out of the multi-chamber mixing container through the sealed connection.

[0123] Unless clearly indicated to the contrary, each aspect or embodiment defined herein may be combined with any other aspect or embodiments. In particular, any feature indicated as preferred or advantageous may be combined with any other feature indicated as preferred or advantageous.

[0124] The specific embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0125] Embodiment 1: 8 fixed convex strips + 1 movable convex strip, i.e., sliding groove

[0126] The outer frame length×width×height of the ton barrel used in this embodiment is 1200mm×1000mm×1150mm.

[0127] Figures 1 to 5 This is a schematic diagram of the structure of the opening and closing device shown in Example 1. Figure 1In the figure, 1 represents the large diameter end, 2 represents the diagonal support, 3 represents the handle, 4 represents the cage, 5 represents the connecting rod, 6 represents the small diameter end, 7 represents the sliding groove, and 8 represents the fixed convex strip.

[0128] The outer wall of the large diameter end and the cage are connected by welding through a handle 3. The handle can be made of a stainless steel pipe with a diameter of DN25, the handle is 360mm long, and both ends of the handle are closed.

[0129] The height of the large diameter end and the small diameter end is the same, both 26mm, and the wall thickness is 3mm.

[0130] The large diameter end is welded with a diagonal brace of φ8 steel bar on both sides of the handle 3. The length of the diagonal brace 2 is 130mm.

[0131] like Figure 2 and Figure 3 As shown, the cage 4 is composed of a small diameter end 6 and four connecting rods 5 of φ6 steel bars. The connecting rod 5 plays a fixing role and its cross section is circular.

[0132] like Figure 4 and Figure 5 As shown, the connection point of the large diameter end 1 and the handle 3 at the corresponding position of the inner circle is the starting point, which is set as the first key point. Any point on the inner side of the inner circle of the small diameter end 6 can be selected as the starting point. A fixed convex strip of the first key point is set at the starting point, and the center angle of the key point formed by the first key point and the counterclockwise rotation from the first key point as the starting point. When the center angle is 60°, the point on the inner circle corresponding to the point is the fifth key point ①; the point on the inner circle corresponding to the point with a center angle of 90° is the fourth key point ①; the point on the inner circle corresponding to the point with a center angle of 120° is the third key point ①; the fixed convex strip point on the inner circle corresponding to the first key point, the point on the inner circle corresponding to the point with a center angle of 180° is the second key point; the point on the inner circle corresponding to the point with a center angle of 240° is the third key point ②; the point on the inner circle corresponding to the point with a center angle of 270° is the fourth key point ②; the point on the inner circle corresponding to the point with a center angle of 300° is the fifth key point ②.

[0133] A cylindrical convex strip is welded on each key point along the axis parallel to the inner circle. The diameter of the convex strip is 6mm and the height is the same as the large and small diameter ends.

[0134] There is a sliding groove between the third key point ① and the second key point, that is, there is only the first sliding groove ① between 120° and 180°.

[0135] like Fig.24 and Fig.25As shown, 9 represents the "E" butterfly bolt (movable convex strip); 10 represents the bolt rod; 11 represents the butterfly nut. The width of the sliding groove at the large and small diameter ends is 6mm. An "E" butterfly bolt is configured in the sliding groove. The "E" butterfly bolt is made of φ8 stainless steel, with a height of 26mm, which is equal to the height of the large and small diameter ends. The middle is cut and polished to be concave, and the remaining thickness is about 6mm, which is equal to the diameter of the convex strip. The upper and lower ends of the stainless steel E-shaped butterfly bolt are protruding, which can just be stuck on the edges of the large and small diameter ends. The diameter of the middle horizontal bolt rod of the E-shaped butterfly bolt is 5.75mm, and there is a butterfly bolt outside. The width of the large and small diameter ends at the sliding groove is 20mm, and the length of the "E" butterfly screw rod is 25mm.

[0136] The depth of the depression from the ton barrel cover to the root of the discharge pipe on the side of the ton barrel is 140mm, and the valve handle is closest to the outer periphery of the ton barrel cover of the discharge pipe in the depression, and the distance between them is 30mm. Therefore, the length of the "E" butterfly bolt in the sliding groove here should be less than 30mm, preferably 10-25mm.

[0137] For the large diameter end:

[0138] The maximum radius r between the center of the cover and the reinforcement rib 大 The radius r between the center of the cover and the outer wall of the cover without reinforcement ribs 小 The distance between the reinforcing rib and the outer wall of the cover, i.e. the thickness of the reinforcing rib, is 5mm. The reinforcing rib width of the cover applicable to the large diameter end is 6mm. The reinforcing rib height is 40mm. That is: r 小 =85mm; r 大 =90mm, the convex strip thickness is 6mm.

[0139] According to: 大 +Thickness of ribs>R 大 ≥r 大 >R 小 ≥r 小 , then 96mm>R 大 ≥90mm>R 小 ≥85mm.

[0140] The radius R between the center of the inner circle of the hollow structure at the large diameter end and the convex strip 小 =87mm, then R 大 =93mm.

[0141] The diameter of the large diameter end is 190mm, the wall thickness is 2×3mm, R 大 =(190-2×3) / 2=184mm / 2=92mm.

[0142] The thickness of the convex strip at the large diameter end is 6mm, R 小=(190-2×6) / 2=178mm / 2=89mm.

[0143] For the small end:

[0144] The maximum radius r between the center of the cover and the reinforcement rib 大 The radius r between the center of the cover and the outer wall of the cover without reinforcement ribs 小 The thickness of the reinforcing rib, i.e. the distance between the reinforcing rib and the outer wall of the cover, is 5 mm. The reinforcing rib width of the cover applicable to the small diameter end is 4.8 mm, and the reinforcing rib height is 25 mm.

[0145] That is r 小 =32.3mm, r 大 =37.3mm, rib thickness 6mm.

[0146] Then the radius R between the inner circle center of the hollow structure and the convex strip 小 : The radius R between the inner circle center and the inner wall of the hollow structure 大 : The radius from the center of the inner circle to the inner wall of the inner circle:

[0147] According to: 大 +Thickness of ribs>R 大 ≥r 大 >R 小 ≥r 小

[0148] 43.3>R 大 ≥37.3>R 小 ≥32.3

[0149] Select the R at the small diameter end 小 =34mm, then the manufactured R 大 =40mm.

[0150] like Fig.23 As shown, a schematic diagram of the corresponding points of the eight convex strips on the inner circle, 8.1 represents the first key point; 8.2 represents the second key point; 8.3 represents the third key point ①; 8.4 represents the third key point ②; 8.5 represents the fourth key point ①; 8.6 represents the fourth key point ②; 8.7 represents the fifth key point ①; 8.8 represents the fifth key point ②, where:

[0151] ∠1=∠4∠5=∠8=60°;

[0152] ∠2=∠3=∠6=∠7=30°.

[0153] Embodiment 2: 8 fixed convex strips + 0 movable convex strips, i.e. sliding grooves

[0154] Figures 6 to 10The schematic diagram of the opening and closing device and the cage of the second embodiment is shown. Based on 8 fixed convex strips + 1 movable convex strip, that is, based on the first embodiment, the first sliding groove 7.1 is not configured. Finally, the sliding groove formed by the opening and closing device of the second embodiment is as follows Fig. 22 As shown, 7.1 represents the first sliding groove ①; 7.2 represents the first sliding groove ②; 7.3 represents the second sliding groove ①; 7.4 represents the second sliding groove ②; 7.5 represents the third sliding groove ①; 7.6 represents the third sliding groove ②; 7.7 represents the fourth sliding groove ①; 7.8 represents the fourth sliding groove ②.

[0155] Embodiment 3: 6 fixed convex strips + 1 movable convex strip, i.e., sliding groove

[0156] Figures 11 to 15 The schematic diagram of the opening and closing device and the cage of the third embodiment is shown. On the basis of the 8 fixed convex strips + 1 movable convex strip mode, that is, on the basis of the first embodiment, two fifth key points are omitted, that is, the fifth key point ① of 8.7 and the fifth key point ② of 8.8 are not configured.

[0157] Embodiment 4: 6 fixed convex strips + 0 movable convex strips, i.e. sliding grooves

[0158] Figures 16 to 20 The schematic diagram of the opening and closing device and the cage of the fourth embodiment is shown. On the basis of the 8 fixed convex strips + 0 movable convex strips mode, that is, on the basis of the second embodiment, two fifth key points are omitted, that is, the fifth key point ① of 8.7 and the fifth key point ② of 8.8 are not configured.

[0159] Alternatively, on the basis of the mode of 6 fixed convex strips + 1 movable convex strip, that is, on the basis of the third embodiment, the first sliding groove ① in 7.1 is omitted.

[0160] The present specification only describes the preferred specific embodiments of the present application, and the above embodiments are only used to illustrate the technical solutions of the present application rather than to limit the present application. Any technical solutions that can be obtained by those skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present application should be within the scope of the present application.

Claims

1. An opening and closing device for the cover of the feed port and the discharge port of a ton barrel, characterized in that: One end of the opening and closing device is a large diameter end, and the other end is a small diameter end, and the large diameter end and the small diameter end are connected by a handle. The small diameter end forms a cage, the cage is a hollow structure with an inner circular shape, the hollow structure is connected to the handle through a connecting rod, the cage has a central axis extending along the axial direction of the handle; and the large diameter end is a hollow structure with an inner circular shape, the hollow structure of the large diameter end is provided with fixed convex strips and / or movable convex strips; Wherein, an oblique support piece is respectively arranged on both sides of the handle at the large diameter end, and the two oblique support pieces are symmetrically distributed in an eight-shaped shape.

2. The opening and closing device according to claim 1, characterized in that: There are multiple connecting rods, which are configured to equally divide the outer wall of the hollow structure of the cage.

3. The opening and closing device according to claim 1, characterized in that: The cross section of the connecting rod is circular or square.

4. The opening and closing device according to claim 1, characterized in that: The plane where the inner circle of the hollow structure of the large diameter end is located is perpendicular to the plane where the inner circle of the hollow structure of the cage is located.

5. The opening and closing device according to claim 1, characterized in that: The cover body is provided with n reinforcing ribs evenly distributed around the circumference of the cover body.

6. The opening and closing device according to claim 1, characterized in that: A fixing convex strip of the first key point is arranged inside the hollow structure of the large diameter end and the small diameter end, and the angle between the fixing convex strip and the center of the circle is 0°.

7. The opening and closing device according to claim 6, characterized in that: The fixed convex strip position on the hollow structure at the other end extending along the inner circle diameter corresponding to the first key point is set as the second key point.

8. The opening and closing device according to claim 6, characterized in that: The mth key point ① or the mth key point ② rotates counterclockwise with the first key point as the starting point, and forms a central angle with the first key point, where m is greater than 2; When m is equal to 3, the third key point ① or the third key point ② rotates counterclockwise with the first key point as the starting point, and the central angle formed with the first key point is 120° or 240°; When m is equal to 4, the fourth key point ① or the fourth key point ② rotates counterclockwise with the first key point as the starting point, and the central angle formed with the first key point is 90° or 270°; When m is equal to 5, the fifth key point ① or the fifth key point ② rotates counterclockwise with the first key point as the starting point, and the central angle formed with the first key point is 60° or 300°.

9. The opening and closing device according to claim 6, characterized in that: At least one sliding groove is arranged on the inner circular wall of the large diameter end and / or the small diameter end, and the width of the sliding groove is matched with the width of the hollow structure.

10. The opening and closing device according to claim 9, characterized in that: The at least one sliding groove is located between two adjacent key points.

11. The opening and closing device according to claim 9, characterized in that: Taking the first key point as the starting point, rotating counterclockwise, a first sliding groove is provided at a position where the central angle formed by the first key point is 120° to 180°; Taking the first key point as the starting point, rotating counterclockwise, a second sliding groove is provided at a position where the central angle formed with the first key point is 0° to 60°; Taking the first key point as the starting point, rotating counterclockwise, a third sliding groove is provided at a position where the central angle formed with the first key point is 60° to 90°; The fourth sliding groove is arranged at a position where the central angle formed by the first key point is 90° to 120°, by rotating counterclockwise from the first key point as a starting point.

12. The opening and closing device according to claim 9, characterized in that: At least one of the sliding grooves is an E-shaped butterfly bolt.

13. The opening and closing device according to claim 12, characterized in that: The upper and lower sides of the E-shaped butterfly bolt are clamped at the upper and lower edges of the large diameter end or the small diameter end.

14. The opening and closing device according to claim 12, characterized in that: The number of the E-shaped butterfly bolts is less than the number of the sliding grooves.

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