Sleeve special for quick-open type manhole butterfly nut

Abstract

The special sleeve for the quick-open type manhole butterfly nut comprises a sleeve body, a containing groove matched with the butterfly nut in appearance is formed in the lower side of the sleeve body, the containing groove is provided with two symmetrically-arranged blocking walls, and a protruding part is fixedly and vertically arranged on the upper side of the sleeve body. According to the special sleeve, it can be guaranteed that the butterfly nut is evenly stressed during assembly and disassembly, assembly and disassembly are more convenient, the working efficiency is improved, and safety is improved.

Description

Technical Field

[0001] This application relates to the field of tank container technology, and in particular to a special sleeve for quick-opening manhole wing nuts. Background Technology

[0002] As tank containers are increasingly used in various storage and transportation industries, the opening and closing of manholes in tank containers has gradually become a matter of great concern to on-site personnel.

[0003] Most manholes adopt a quick-opening structure. Currently, hammers or simple U-shaped clamps are commonly used to tighten and loosen the wing nuts of quick-opening manholes, which has the following drawbacks: First, uneven force is applied to the wing nuts during loading and unloading, which can easily damage them and increase tank maintenance costs; second, the work is inefficient, labor-intensive, and unsafe. Therefore, a new technical solution is urgently needed to solve at least one of the above technical problems. Summary of the Invention

[0004] In view of the above shortcomings, the purpose of this application is to provide a special sleeve for quick-opening manhole wing nuts, wherein the receiving groove matches the shape of the wing nut, ensuring that the wing nut is subjected to uniform force during loading and unloading, making loading and unloading more convenient, improving work efficiency and enhancing safety.

[0005] To achieve the above-mentioned technical objectives and meet the above-mentioned technical requirements, the technical solution adopted in this application is as follows:

[0006] A special sleeve for quick-opening manhole wing nuts is characterized in that the wing nut includes a nut part and two wing parts respectively disposed on both sides of the nut part, the special sleeve includes a sleeve body, the lower side of the sleeve body is provided with a receiving groove matching the shape of the wing nut, the receiving groove has two symmetrically arranged baffles, and the upper side of the sleeve body is fixedly and vertically provided with a protrusion.

[0007] As a preferred technical solution, the inner contour surface of the baffle includes a central arc surface that matches the shape of the nut part, a first broken line surface and a second broken line surface that are symmetrically connected to the two ends of the central arc surface, a first straight line surface connected to one end of the first broken line surface, and a second straight line surface connected to the second broken line surface. The first straight line surface and the second straight line surface are symmetrically arranged, and the first broken line surface, the second broken line surface, the first straight line surface and the second straight line surface match the shape of the butterfly wing part.

[0008] As a preferred technical solution, the lower contour surface of the baffle includes a bottom plane and bottom broken lines symmetrically connected to both ends of the bottom plane, with the bottom broken lines inclined upwards.

[0009] As a preferred technical solution, the upper inner wall of the receiving groove is provided with a circular clearance groove.

[0010] As a preferred technical solution, the protrusion is provided with a connecting hole for connecting tools that passes through it along the axial direction.

[0011] As a preferred technical solution, the protrusion is waist-shaped.

[0012] As a preferred technical solution, the protrusion is symmetrically provided with two fastening holes that penetrate the wall of the connecting hole in a radial direction.

[0013] As a preferred technical solution, the sleeve body is provided with skirts at both ends, and the skirts are connected to the baffle to form an integral structure.

[0014] As a preferred technical solution, the first polygonal surface and the first straight surface are connected by a first inner transition arc surface, the second polygonal surface and the second straight surface are connected by a second inner transition arc surface, and the bottom plane and the bottom polygonal surface are connected by a bottom transition arc surface.

[0015] As a preferred technical solution, the connecting hole is a rectangular hole or a circular threaded hole.

[0016] Compared with traditional technical solutions, the beneficial effects of this application are:

[0017] 1) The baffle can block the outside of the wing nut, and the receiving groove matches the wing nut to ensure that the wing nut is evenly stressed during loading and unloading. The protrusion makes it easier for operators to rotate the wing nut, making loading and unloading more convenient, improving work efficiency and enhancing safety.

[0018] 2) After the first folded surface, the second folded surface, the first straight surface, and the second straight surface are matched with the shape of the butterfly wing, the force is more evenly and reasonably distributed, preventing damage to the butterfly nut;

[0019] 3) When a wing nut is installed on a bolt or threaded rod, the clearance groove can avoid interference with the bolt or threaded rod;

[0020] 4) The connection hole can be connected to a torque wrench or power tool for loading and unloading, further improving work efficiency and reducing labor intensity;

[0021] 5) When encountering a butterfly nut, the longer the wing of the butterfly, the better the effect of the skirt. Attached Figure Description

[0022] Figure 1 This is a structural diagram of a special sleeve provided in one embodiment of this application;

[0023] Figure 2 for Figure 1 A view from another direction;

[0024] Figure 3 for Figure 1 Another view from a different direction;

[0025] Figure 4 A structural diagram of a special sleeve provided in a preferred embodiment of this application;

[0026] Figure 5 for Figure 4 A view from another direction;

[0027] exist Figures 1-5 In the middle, 1. Sleeve body; 101. Receiving groove; 102. Clearance groove; 103. Skirt; 2. Baffle; 201. Central arc surface; 202. First zigzag surface; 203. Second zigzag surface; 204. First straight surface; 205. Second straight surface; 206. Bottom plane; 207. Bottom zigzag surface; 208. First inner transition arc surface; 209. Second inner transition arc surface; 210. Bottom transition arc surface; 3. Protrusion; 301. Connecting hole; 302. Fastening hole. Detailed Implementation

[0028] The present application will now be further described with reference to the accompanying drawings.

[0029] In the accompanying drawings of the embodiments of this application, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "top", "bottom", "left", "right", "front", "rear", "inner", "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this application, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0030] Please refer to Figures 1-5 This application provides a quick-opening manhole wing nut sleeve according to one embodiment. The wing nut includes a nut portion and two wing portions respectively disposed on both sides of the nut portion. The sleeve includes a sleeve body 1. The lower side of the sleeve body 1 is provided with a receiving groove 101 that matches the shape of the wing nut. The receiving groove 101 has two symmetrically arranged baffles 2. The upper side of the sleeve body 1 is fixedly and vertically provided with a protrusion 3. The baffles 2 can block the outer side of the wing nut. The receiving groove 101 matches the wing nut to ensure that the wing nut is subjected to uniform force during loading and unloading. The protrusion 3 makes it easier for the operator to rotate the wing nut, making loading and unloading more convenient, improving work efficiency and enhancing safety.

[0031] like Figures 1-5As shown, the inner contour surface of the baffle 2 includes a central arc surface 201 that matches the shape of the nut part, a first broken line surface 202 and a second broken line surface 203 symmetrically connected to the two ends of the central arc surface 201, a first straight line surface 204 connected to one end of the first broken line surface 202, and a second straight line surface 205 connected to the second broken line surface 203. The first straight line surface 204 and the second straight line surface 205 are symmetrically arranged. The first broken line surface 202, the second broken line surface 203, the first straight line surface 204 and the second straight line surface 205 match the shape of the butterfly wing part. After the first broken line surface 202, the second broken line surface 203, the first straight line surface 204 and the second straight line surface 205 are completely matched with the shape of the butterfly wing part, the force is more even and the butterfly nut is prevented from being damaged.

[0032] like Figures 1-5 As shown, the lower contour surface of the baffle 2 includes a bottom plane 206 and bottom folded surfaces 207 symmetrically connected to both ends of the bottom plane 206. The bottom folded surfaces 207 are inclined upwards, the butterfly wing portion is inclined upwards, and the bottom folded surfaces 207 are inclined upwards to match the butterfly wing portion.

[0033] like Figures 1-5 As shown, the upper inner wall of the receiving groove 101 is provided with a circular clearance groove 102. The wing nut is generally installed on the bolt or screw. The clearance groove 102 can avoid the bolt or screw and prevent interference.

[0034] like Figures 1-5 As shown, the protrusion 3 is provided with a connecting hole 301 that passes through it along the axial direction for connecting tools. The connecting hole 301 can be connected to a torque wrench or power tool for loading and unloading, further improving work efficiency and reducing labor intensity.

[0035] like Figures 1-5 As shown, the protrusion 3 is waist-shaped, which makes it easier for a wrench to grip and rotate it, making the operation more convenient.

[0036] like Figures 1-5 As shown, the protrusion 3 is symmetrically provided with two fastening holes 302 that penetrate the wall of the connecting hole 301 in a radial direction. When a tool is inserted into the connecting hole 301, a fastening pin or fastening bolt can be inserted into the fastening hole 302 to fix the tool. This improves stability during operation and makes it less likely for the tool to come out of the connecting hole 301.

[0037] like Figures 1-5 As shown, the sleeve body 1 is provided with skirts 103 at both ends. The skirts 103 are connected to the baffle 2 to form an integral structure with high overall strength. When encountering a butterfly nut with a relatively long wing, the skirts 103 provide better force.

[0038] like Figures 1-5As shown, the first broken surface 202 and the first straight surface 204 are connected by a first inner transition arc surface 208, the second broken surface 203 and the second straight surface 205 are connected by a second inner transition arc surface 209, and the bottom plane 206 and the bottom broken surface 207 are connected by a bottom transition arc surface 210. This improves the stress structure, makes the baffle 2 less prone to breakage, and extends its service life.

[0039] like Figures 1-5 As shown, the connecting hole 301 is a rectangular hole or a circular threaded hole, which is set according to different tools.

[0040] Any numerical values ​​cited herein include all values ​​ranging from a lower limit to an upper limit, increasing by one unit, with at least two units between any lower and any higher value. For example, if the quantity of a component or the value of a process variable (e.g., temperature, pressure, time, etc.) is described as being from 1 to 90, preferably from 20 to 80, more preferably from 30 to 70, the purpose is to illustrate that values ​​such as 15 to 85, 22 to 68, 43 to 51, 30 to 32 are also explicitly listed in this specification. For values ​​less than 1, a unit is appropriately considered to be 0.0001, 0.001, 0.01, 0.1, etc. These are merely examples intended for explicit expression, and it can be assumed that all possible combinations of values ​​listed between the minimum and maximum values ​​are similarly explicitly stated in this specification.

[0041] Unless otherwise stated, all ranges include the endpoints and all numbers between them. The terms "approximately" or "about" used with ranges apply to both endpoints of the range. Thus, "approximately 20 to 30" is intended to cover "approximately 20 to approximately 30," including at least the specified endpoints.

[0042] All articles and references disclosed herein, including patent applications and publications, are incorporated herein by reference for various purposes. The term “substantially constitutes…” used to describe a combination should include the identified elements, components, parts, or steps, as well as other elements, components, parts, or steps that do not substantially affect the essential novelty of the combination. The use of the terms “comprising” or “including” to describe combinations of elements, components, parts, or steps herein also contemplates embodiments substantially constituted by such elements, components, parts, or steps. The use of the term “may” herein is intended to indicate that any described attribute included by “may” is optional.

[0043] Multiple elements, components, parts, or steps can be provided by a single integrated element, component, part, or step. Alternatively, a single integrated element, component, part, or step can be divided into multiple separate elements, components, parts, or steps. The use of "a" or "an" to describe an element, component, part, or step does not imply the exclusion of other elements, components, parts, or steps.

[0044] It should be understood that the above description is for illustrative purposes and not for limitation. Many embodiments and applications beyond the provided examples will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of this teaching should not be determined by reference to the above description, but rather by reference to the appended claims and the full scope of their equivalents. For purposes of completeness, all articles and references, including patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended as a waiver of that subject matter, nor should it be construed as an indication that the inventors have not considered that subject matter as part of the disclosed subject matter.

Claims

1. A special sleeve for butterfly nut of quick opening manhole, characterized in that, The butterfly nut comprises a nut part, two butterfly wing parts respectively arranged on both sides of the nut part, the special sleeve comprises a sleeve body, the lower side of the sleeve body is provided with a containing groove matched with the outer shape of the butterfly nut, the containing groove is provided with two symmetrically arranged blocking walls, and the upper side of the sleeve body is fixedly provided with a protruding part arranged vertically.

2. The fast opening manhole butterfly nut special sleeve according to claim 1, characterized in that, The inner profile surface of the blocking wall comprises a central curved surface matched with the outer shape of the nut part, a first fold line surface and a second fold line surface symmetrically connected at both ends of the central curved surface, a first straight line surface connected at one end of the first fold line surface, and a second straight line surface connected at the second fold line surface, the first straight line surface and the second straight line surface are symmetrically arranged, and the first fold line surface, the second fold line surface, the first straight line surface and the second straight line surface are matched with the outer shape of the butterfly wing part.

3. The fast opening manhole butterfly nut special sleeve according to claim 2, characterized in that, The lower profile surface of the blocking wall comprises a bottom flat surface and bottom fold line surfaces symmetrically connected at both ends of the bottom flat surface, and the bottom fold line surfaces are inclined upward.

4. The fast opening manhole butterfly nut special sleeve according to claim 1, characterized in that, The upper inner wall of the containing groove is provided with a circular avoiding groove.

5. The fast opening manhole butterfly nut special sleeve according to claim 1, characterized in that, The protruding part is provided with a connecting hole penetrating the protruding part in the axial direction for connecting a tool.

6. The fast opening manhole butterfly nut special sleeve according to claim 1, characterized in that, The shape of the protruding part is a waist shape.

7. The fast opening manhole butterfly nut special sleeve according to claim 5, characterized in that, The protruding part is symmetrically provided with two fastening holes penetrating the hole wall of the connecting hole in the radial direction.

8. The fast opening manhole butterfly nut special sleeve according to claim 1, characterized in that, The both ends of the sleeve body are respectively provided with a skirt, and the skirt is connected with the blocking wall in an integrated structure.

9. The butterfly nut special sleeve for quick open manhole as claimed in claim 3, wherein, The first fold line surface and the first straight line surface are transitionally connected through a first inner transition curved surface, the second fold line surface and the second straight line surface are transitionally connected through a second inner transition curved surface, and the bottom flat surface and the bottom fold line surface are transitionally connected through a bottom transition curved surface.

10. The fast opening manhole butterfly nut special sleeve according to claim 5, characterized in that, The connecting hole is a rectangular hole or a circular threaded hole.

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