CN113567231A - Plugging cover and pressure-bearing test device - Google Patents
Plugging cover and pressure-bearing test device Download PDFInfo
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- CN113567231A CN113567231A CN202110970342.6A CN202110970342A CN113567231A CN 113567231 A CN113567231 A CN 113567231A CN 202110970342 A CN202110970342 A CN 202110970342A CN 113567231 A CN113567231 A CN 113567231A
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- cover
- closure
- tool assembly
- main body
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- Pressure Vessels And Lids Thereof (AREA)
Abstract
The embodiment of the application provides a blanking cover and a pressure-bearing test device. The blanking cover belongs to a pressure-bearing test device and comprises a cover body and a tool assembly; one side of the cover body is used for being connected with a shell of the pressure-bearing test device and plugging an opening of the shell, and the other side of the cover body is detachably connected with the tool assembly. The blanking cover of the pressure-bearing test device provided by the embodiment of the application can be detachably connected with the tool assembly, the tool assembly can be adapted to a plurality of cover bodies, so that the cover bodies and the tool assembly are both provided with stronger universality, and the cover bodies and the tool assembly can be respectively prepared. When the tool assembly is not needed, the tool assembly can be disassembled, so that the tool assembly and the cover body are more convenient to transport.
Description
Technical Field
The application relates to the technical field of pressure-bearing tests, in particular to a plug cover and a pressure-bearing test device.
Background
The pressure-bearing test is used as a basic comprehensive test process for technical requirements on the processing precision, material performance, assembly sealing quality and the like of a shell of the pressure-bearing test device, is an important index for measuring the quality of a product, and is a key link for controlling the quality of the production process of the product. At present, a hydraulic test mode is mostly adopted to carry out a pressure-bearing test on a shell, and the basic principle of the pressure-bearing test is as follows: the filling material or filling liquid is filled in the inner cavity of the shell to be tested after sealed assembly, and the filling liquid in the shell to be tested is subjected to test processes of leak detection, pressure boosting, pressure maintaining and the like, so that whether the shell to be tested meets the pressure bearing capacity of the technical requirements or not is verified.
The shell of a general pressure-bearing test device is provided with an opening for placing filler or filling liquid, so that the opening needs to be blocked by an adaptive blocking cover during a pressure-bearing test. The existing plugging cover mainly comprises a cover body and a tool assembly, wherein the cover body is used for plugging an opening, the tool assembly can play the roles of conveniently holding the plugging cover by hand or carrying a shell of a pressure-bearing experimental device connected with the plugging cover, in the prior art, each cover body is welded with an independent tool assembly, the plugging cover is matched with one tool assembly, the tool assembly and the cover body part of the plugging cover can not be detached, the tool assembly is low in universality and difficult to recycle, the cost is higher, and the transportation of the plugging cover obtained after the welding of the cover body and the tool assembly is also troublesome.
Disclosure of Invention
This application is directed against the shortcoming of current mode, provides a blanking cover and pressure-bearing test device for the instrument subassembly and the unable dismantlement of lid that solve prior art existence, instrument subassembly's commonality is not high, is difficult to recycle, or transports technical problem such as comparatively trouble.
In a first aspect, the embodiment of the present application provides a blanking cover, and belongs to a pressure-bearing test device, the blanking cover includes: a cap and a tool assembly;
one side of the cover body is used for being connected with a shell of the pressure-bearing test device and plugging an opening of the shell, and the other side of the cover body is detachably connected with the tool assembly.
Optionally, the tool assembly comprises: a handle and a support assembly;
the support assembly comprises at least two supports;
the first ends of the supporting pieces are detachably connected with the other surface of the cover body, and the second ends of the supporting pieces are connected with the handle in a relative position adjustable mode, so that the first ends of the two supporting pieces have a designed distance.
Optionally, the handle has at least two elongated holes;
the second end of each support member is connected with a corresponding elongated hole in a relatively position-adjustable manner;
the design distance between the first ends of the two supporting pieces is not smaller than the distance between the ends, close to each other, of the two corresponding elongated holes and not larger than the distance between the ends, far away from each other, of the two corresponding elongated holes.
Optionally, the major axes of at least two of the elongated apertures are collinear.
Optionally, the second end of the support has an external thread; the second end of the supporting piece penetrates through the corresponding long hole and is connected with a matched nut;
the position of the second end of the support member in a plane parallel to the other face of the cover body is adjustable within the corresponding elongated hole.
Optionally, the cover comprises: a mounting portion and a main body portion;
one surface of the mounting part is used for being connected with the periphery of the opening of the shell in a sealing way, and the other surface of the mounting part is connected with one surface of the main body part;
the other side of the main body part is detachably connected with the supporting piece.
Optionally, the body portion is a bowl;
the main body part protrudes out of the mounting part towards the shell;
the bowl mouth of the main body part is connected with the other surface of the mounting part.
Optionally, the cross section of the main body part on the first plane is trapezoidal or triangular;
the first plane is a plane intersecting with and perpendicular to the other surface of the main body.
Optionally, the number of turns of the external thread of the first end of the support is not less than 2 turns and not more than 3 turns.
In a second aspect, an embodiment of the present application provides a pressure-bearing test apparatus, including: a housing and a closure as provided in any of the preceding embodiments; the shell is provided with an opening;
one side of the blocking cover is connected with the shell and blocks the opening.
The beneficial technological effect that blanking cover and pressure-bearing test device that this application embodiment provided brought includes:
the opening of the casing of the lid shutoff pressure-bearing test device of blanking cover to can dismantle with the instrument subassembly and link, instrument subassembly can a plurality of lids of adaptation, makes lid and instrument subassembly all possess stronger commonality, and lid and instrument subassembly can prepare respectively, have simplified the preparation technology of blanking cover, have reduced the manufacturing cost of blanking cover. The tool assembly can be recycled, and the manufacturing cost of the tool assembly is saved. And, instrument subassembly and lid can transport respectively for the transportation of blanking cover is more convenient.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a plugging cover according to an embodiment of the present application;
fig. 2 is a schematic structural view of a handle of the closure according to an embodiment of the present disclosure;
fig. 3 is a schematic structural view of a supporting member of a supporting assembly of the blanking cover according to an embodiment of the present application;
fig. 4 is a schematic structural view of a nut of a support assembly of a closure according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a cover body of a closure according to an embodiment of the present application.
In the figure:
1-blocking the cover; 11-a cover body; 111-a mounting portion; 112-a body portion; 1120-blind hole;
12-a tool assembly; 121-a handle; 1211-elongated holes; 1211 a-major axis;
122-a support assembly; 1221-a support; 1221 a-first end; 1221 b-second end;
1222-a nut.
Detailed Description
Reference will now be made in detail to the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar parts or parts having the same or similar functions throughout. In addition, if a detailed description of the known art is not necessary for illustrating the features of the present application, it is omitted. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It is to be understood that the term "and/or" as used herein is intended to include all or any and all combinations of one or more of the associated listed items.
The inventor of the present application has found that:
in the prior art, the cover body of the plugging cover is connected with the tool assembly in a welding mode mostly, so that the plugging cover is difficult to disassemble, the welding process cost is high, and the manufacturing cost of the plugging cover is increased. The cover body and the tool assembly cannot be combined with each other, the universality of the cover body and the tool assembly is not high, recycling is difficult, and resource waste of the tool assembly is caused. And in the transportation process after the blanking cover leaves the factory, the space occupied by the blanking cover with the tool assembly is larger, and the transportation process is also troublesome for avoiding collision.
The application provides a blanking cover and pressure-bearing test device aims at solving prior art technical problem as above.
The following describes the technical solutions of the present application and how to solve the above technical problems with specific embodiments.
Referring to fig. 1, an embodiment of the present application provides a plug 1, which belongs to a pressure-bearing test device, and the plug 1 includes: a cover 11 and a tool assembly 12.
One side of the cover body 11 is used for being connected with a shell of the pressure-bearing test device and plugging an opening of the shell, and the other side of the cover body 11 is detachably connected with the tool assembly 12.
In this embodiment, the cover body 11 of the plugging cover 1 plugs the opening of the shell of the pressure-bearing test device and is detachably connected with the tool assembly 12, the tool assembly 12 can be adapted to the plurality of cover bodies 11, so that both the cover body 11 and the tool assembly 12 have strong universality, the cover body 11 and the tool assembly 12 can be respectively prepared, the preparation process of the plugging cover 1 is simplified, and the manufacturing cost of the plugging cover 1 is reduced. Moreover, the tool assembly 12 and the cover body 11 can be transported separately, so that the transportation of the closure 1 is facilitated.
Alternatively, the tool assembly 12 is a hand-held assembly, and when the plug 1 is used, the cover body 11 can be mounted at the opening of the housing of the pressure-bearing test device through the tool assembly 12, and the housing with the plug 1 mounted thereon can also be transported.
The inventors of the present application have further studied that the opening of the housing for the pressure-bearing test is large and small, so that it is necessary to prepare covers 11 with various sizes, and the covers 11 are also required to be adapted to tool assemblies 12 with different sizes, and for this purpose, the present application also provides an embodiment, please refer to fig. 1, 2 and 3, wherein the tool assembly 12 comprises: a handle 121 and a support assembly 122.
The support assembly 122 includes at least two supports 1221.
The first ends 1221a of the supporting members 1221 are detachably coupled to the other surface of the cover 11, and the second ends 1221b of the supporting members 1221 are coupled to the handle 121 in a relative position adjustable manner such that the first ends 1221a of at least two of the supporting members 1221 have a designed distance therebetween.
In this embodiment, the handle 121 is connected to one side of the cover 11 through the supporting assembly 122, and the first end 1221a of the supporting member 1221 is detachably connected to the cover 11, so as to achieve the detachable effect of the whole tool assembly 12 and the cover 11, avoid the welding process, and reduce the processing cost of the product. The second end 1221b of the supporting member 1221 is adjustably connected to the handle 121, so that the relative position of the second section of the supporting member 1221 and the handle 121 can be adjusted, the same handle 121 can be adapted to the supporting member 122 with various design distances, and further, the same set of tool assembly 12 including the handle 121 and the supporting member 122 can be adapted to covers 11 with various sizes, the universality of the tool assembly 12 is enhanced, and the manufacturing cost of the tool assembly 12 is saved.
Alternatively, the design distance is the distance between the first ends 1221a of the two supports 1221, and there may be other numbers of supports 1221 between the two supports 1221.
In some possible embodiments, referring to fig. 2, the handle 121 has at least two elongated holes 1211.
The second end 1221b of each support member 1221 is connected to a corresponding one of the elongated holes 1211 in a relatively position-adjustable manner.
The designed distance between the first ends 1221a of the two support members 1221 is not smaller than the distance between the ends of the corresponding two elongated holes 1211 that are close to each other and not larger than the distance between the ends of the corresponding two elongated holes 1211 that are far from each other.
In the present embodiment, the handle 121 has a number of elongated holes 1211 corresponding to the number of the supporting members 1221, each of the elongated holes 1211 corresponds to one of the supporting members 1221, and the elongated holes 1211 has a certain surplus space after receiving the second end 1221b of the supporting member 1221. The first ends 1221a of the two supporting members 1221 have a design distance therebetween, each design distance may correspond to one or more sizes of covers 11, the distance between the ends of the two elongated holes 1211 close to each other is smaller than the design distance, and the distance between the ends of the two elongated holes 1211 far from each other is larger than the design distance, so that the unified handle 121 can be adapted to covers 11 with different sizes.
The design distance in this application may be understood as a distance between the first ends 1221a of the two supporting members 1221 after the first ends 1221a of the two adjacent supporting members 1221 are mounted on the cover 11, or a distance between positions where the two supporting members 1221 are connected to the cover 11.
Alternatively, referring to fig. 2, the long axes 1211a of at least two of the elongated apertures 1211 are collinear.
In this embodiment, the elongated holes 1211 may be elongated holes, and the elongated holes have a long axis 1211a and a short axis, and the long axes 1211a of at least two of the elongated holes 1211 are collinear, so that the directions of the second ends 1221b of the two supporting members 1221 adjusted in the elongated holes 1211 are consistent, and the adjustment of the relative positions of the second ends 1221b of the supporting members 1221 and the handle 121 according to the designed distance is more convenient and easy to operate. It will be appreciated that the long axis 1211a of FIG. 2 is not actually present and is added to FIG. 2 to more clearly show the location of the long axis 1211 a.
In some possible embodiments, the second end 1221b of the support 1221 is externally threaded. The second end 1221b of the support member 1221 passes through the corresponding elongated hole 1211 and is coupled to the mating nut 1222.
The position of the second end 1221b of the support member 1221 in a plane parallel to the other surface of the cover 11 is adjustable in the corresponding elongated hole 1211.
In this embodiment, the support assembly 122 further includes a nut 1222. The second end 1221b of the supporting member 1221 has an external thread on its outer periphery, and the second end 1221b of the supporting member 1221 passes through the elongated hole 1211 and is connected to the nut 1222 in a fitting manner, so as to fix the positions of the supporting member 1221 and the handle 121. The length of the second end 1221b of the support member 1221 is at least greater than the depth of the elongated hole 1211, so that the second end 1221b of the support member 1221 can pass through the elongated hole 1211 and be coupled to the nut 1222. The nut 1222 is constructed as described with reference to fig. 4.
In some possible embodiments, please refer to fig. 1 and 5, the cover 11 includes: a mounting portion 111 and a main body portion 112.
One surface of the mounting portion 111 is connected to the opening periphery of the housing in a sealing manner, and the other surface is connected to one surface of the body portion 112.
The other side of the body portion 112 is detachably connected to the support member 1221.
In the present embodiment, the cover 11 is divided into two parts, i.e., a mounting portion 111 and a main body portion 112, the mounting portion 111 is mounted on the housing, and the main body portion 112 serves to close the opening.
Optionally, the mounting portion 111 may be a flange, the housing is also provided with a flange, and the flange of the housing is connected to the flange of the blocking cover 1, so as to connect the blocking cover 1 to the housing. The flange connection is simple and convenient, the operation is easy, and the materials are easy to obtain.
Alternatively, the flange connection manner in the embodiment may be bolt connection.
In some possible embodiments, the body portion 112 is a bowl.
The body 112 protrudes outward from the housing to the mounting portion 111.
The bowl opening of the body 112 is connected to the other surface of the mounting portion 111.
In this embodiment, the main body 112 is a bowl, the bowl opening part faces the opening of the casing, and the main body 112 of the bowl structure can improve the stress characteristics of the cover 11, reduce the deformation of the cover 11, and reduce the volume and weight of the closure 1.
In some possible embodiments, the body portion 112 has a trapezoidal or triangular cross-section in the first plane.
The first plane is a plane intersecting with and perpendicular to the other surface of the main body 112.
In the present embodiment, the main body 112 has a trapezoidal or triangular cross section, the cross section of the main body 112 is trapezoidal when the first plane passes through the side of the main body 112 connected to the support assembly 122, and the cross section of the main body 112 is triangular when the first plane passes through the bowl wall of the main body 112. The trapezoid or triangle in this embodiment is the cross-sectional shape described, excluding the base of the trapezoid or triangle. It will be appreciated that the body portion 112 is a bowl, the bowl is hollow, and the cross-section of the body portion 112 in the first plane, whether triangular or trapezoidal, has no base.
Alternatively, when the body portion 112 is solid, the cross-section in the first plane is a complete triangle or trapezoid with a base.
It will be appreciated that the cover 11 needs to be sealed to seal off the opening while maintaining the pressure within the interior chamber of the housing, and therefore, the support 1221 is connected to the body portion 112 without altering the sealing characteristics of the body portion 112. To this end, the present application further provides an embodiment, and the other surface of the main body 112 has at least two blind holes 1120.
The blind bore 1120 is internally threaded and the first end 1221a of the support 1221 is externally threaded for mating. The internal thread is connected with the external thread.
In this embodiment, the main body 112 has a certain thickness, at least two blind holes 1120 are provided on the surface of the main body 112 connected to the support component 122, an internal thread is provided in the blind hole 1120, the first end 1221a of the support component 1221 has an external thread, the internal thread of the blind hole 1120 is connected to the external thread of the support component 1221 in a matching manner, the threaded connection is simple and convenient, the operation is easy, and the thread preparation process of the blind hole 1120 and the support component 1221 is also mature and easy to prepare.
Alternatively, the number of the supporting members 1221 and the number of the blind holes 1120 may be 3 or more, so that the connection between the handle 121 and the cover 11 is more stable.
Alternatively, the number of the external threads of the first end 1221a of the supporting member 1221 is not less than 2 and not more than 3.
In this embodiment, the external thread of the first end 1221a of the supporting member 1221 is 2 or 3 threads, correspondingly, the number of the internal threads in the blind hole 1120 is also 2 or 3 threads, the depth of the blind hole 1120 does not need to be too deep, so that the main body 112 at the blind hole 1120 caused by the too deep depth of the blind hole 1120 is prevented from being thinner, and the main body 112 in the blind hole 1120 caused by the friction generated when the supporting member 1221 and the main body 112 are mounted and dismounted many times is prevented from being worn, and further the sealing performance of the lid 11 is prevented from being damaged. The blind hole 1120 of such a size is also more advantageous for the machining process of the closure 1.
Alternatively, referring to fig. 1, 3 and 4, the support 1221 includes, but is not limited to, a double-threaded screw. One end of the double-threaded screw is in threaded connection with the blind hole 1120 of the cover body 11, the other end of the double-threaded screw is in threaded connection with the nut 1222, the threaded connection mode is easy to operate, and the production efficiency of the plug cover 1 can be increased. And, the materials such as the double-ended screw or nut 1222 are readily available.
Alternatively, the support 1221 and the handle 121 may be made of 45 gauge steel.
Alternatively, the support 1221 may have a diameter of 28 mm at the middle and 16 mm at the ends to accommodate the mounting of the handle 121.
Alternatively, the length of the minor axis of the elongated hole 1211 of the handle 121 may be equal to or slightly greater than the diameter of the thread of the support 1221, and the diameter of the internal thread of the nut 1222 may be 16 mm.
Based on the same inventive concept, the embodiment of the application provides a pressure-bearing test device, which comprises: a housing and a closure 1 as provided in any of the previous embodiments. The housing has an opening.
One surface of the blocking cover 1 is connected with the shell and blocks the opening of the shell.
In this embodiment, pressure-bearing test device is including the casing and the blanking cover 1 that are tested, and the casing has the opening, and the opening of blanking cover 1 shutoff casing guarantees the inside leakproofness of casing, creates sealed condition for the pressure-bearing test.
Alternatively, the diameter of the opening may be between 200 mm and 500 mm, and correspondingly, the diameter of the bowl opening of the cover 11 may be between 150 mm and 550 mm in order to allow the cover 11 to completely block the opening.
Optionally, the housing includes, but is not limited to, a rocket motor housing. The pressure bearing test is used as a basic comprehensive test process for technical requirements of the shell of the rocket engine on the machining precision, the material performance, the assembling sealing quality and the like, is an important index for measuring the product quality, and is a key link for controlling the product quality in the production process. At present, most of the rocket engines are provided with openings on the shell, fillers or filling liquid required by a pressure bearing test is filled into the shell, and then the openings are plugged by the plugging covers 1 to carry out the pressure bearing test.
Currently, the aerospace industry is developing rapidly and the need for rocket motors is becoming more and more urgent, and as a result, batch production of rocket motors has begun. Since the casing of each rocket engine needs to be subjected to the hydraulic test to check the pressure bearing capacity of the casing of the rocket engine, when the number of rocket engines produced in batches is large, the hydraulic test procedure occupies a great cost in production management. The adoption can dismantle the instrument subassembly 12 of connection, makes instrument subassembly 12 possess stronger commonality, can greatly improve the production efficiency of blanking cover 1, reduces blanking cover 1's cost.
By applying the embodiment of the application, at least the following beneficial effects can be realized:
1. the opening of the casing of the pressure-bearing test device is blocked by the cover body 11 of the plugging cover 1 and is detachably connected with the tool assembly 12, the tool assembly 12 can be adapted to the cover bodies 11, the cover bodies 11 and the tool assembly 12 have strong universality, the cover bodies 11 and the tool assembly 12 can be respectively prepared, the preparation process of the plugging cover 1 is simplified, and the manufacturing cost of the plugging cover 1 is reduced.
2. The tool assembly 12 and the cover body 11 can be transported separately, so that the transport of the closure 1 is facilitated.
3. The main body part 112 is a bowl, the bowl opening part faces the opening of the casing, the main body part 112 of the bowl structure can improve the stress characteristic of the cover body 11, and the overall volume and weight of the blanking cover 1 are reduced while the deformation of the cover body 11 is reduced.
4. The external screw thread of the first end of the supporting piece 1221 is 2 buckles or 3 buckles, the depth of the blind hole 1120 is prevented from being deep, the main body part 112 at the position of the blind hole 1120 is thin, friction is generated when the supporting piece 1221 and the main body part 112 are mounted and dismounted for many times, the main body part 112 body inside the blind hole 1120 is abraded, the sealing performance of the cover body 11 is further damaged, and the mechanical processing procedure of the blocking cover 1 is further facilitated.
5. The supporting piece 1221 can be a double-threaded screw, one end of the double-threaded screw is in threaded connection with the blind hole 1120 of the cover body 11, the other end of the double-threaded screw is in threaded connection with the nut 1222, the threaded connection mode is easy to operate, and the production efficiency of the plugging cover 1 can be increased. And, the materials such as the double-ended screw or nut 1222 are readily available.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.
Claims (11)
1. The utility model provides a blanking cover, its characterized in that belongs to the pressure-bearing test device, the blanking cover includes: a cap and a tool assembly;
one side of the cover body is used for being connected with a shell of the pressure-bearing test device and plugging an opening of the shell, and the other side of the cover body is detachably connected with the tool assembly.
2. The closure according to claim 1, wherein said tool assembly comprises: a handle and a support assembly;
the support assembly comprises at least two supports;
the first ends of the supporting pieces are detachably connected with the other surface of the cover body, and the second ends of the supporting pieces are connected with the handle in a relative position adjustable mode, so that the first ends of at least two supporting pieces have a designed distance.
3. The closure of claim 2, wherein said handle has at least two elongated apertures;
the second end of each support member is connected with a corresponding one of the elongated holes in a relatively position-adjustable manner;
the design distance between the first ends of the two supporting pieces is not smaller than the distance between the ends, close to each other, of the two corresponding elongated holes and not larger than the distance between the ends, far away from each other, of the two corresponding elongated holes.
4. The closure of claim 3, wherein the major axes of at least two of said elongated apertures are collinear.
5. The closure of claim 3, wherein the second end of the support member has external threads; the second end of the supporting piece penetrates through the corresponding long hole and is connected with a matched nut;
the second end of the support member is adjustable within the corresponding elongated aperture in a position in a plane parallel to the other side of the cover.
6. The closure of claim 3, wherein said cover body comprises: a mounting portion and a main body portion;
one surface of the mounting part is used for being connected with the periphery of the opening of the shell in a sealing way, and the other surface of the mounting part is connected with one surface of the main body part;
the other side of the main body part is detachably connected with the supporting piece.
7. The closure of claim 6, wherein said body portion is a bowl;
the main body part protrudes out of the mounting part towards the outside of the shell;
the bowl mouth of the main body part is connected with the other side of the mounting part.
8. The closure of claim 7, wherein said body portion is trapezoidal or triangular in cross-section in a first plane;
the first plane is a plane intersecting with and perpendicular to the other surface of the main body.
9. The closure of claim 6, wherein the other face of the body portion has at least two blind holes;
the blind hole has an internal thread and the first end of the support has a mating external thread; the internal thread is connected with the external thread.
10. The closure of claim 9, wherein the number of external threads of the first end of the support member is not less than 2 and not more than 3 threads.
11. A pressure-bearing test device is characterized by comprising: a housing and a closure according to any of claims 1 to 10; the housing has an opening;
one surface of the blocking cover is connected with the shell and blocks the opening.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110970342.6A CN113567231A (en) | 2021-08-23 | 2021-08-23 | Plugging cover and pressure-bearing test device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110970342.6A CN113567231A (en) | 2021-08-23 | 2021-08-23 | Plugging cover and pressure-bearing test device |
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| CN113567231A true CN113567231A (en) | 2021-10-29 |
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| CN202110970342.6A Pending CN113567231A (en) | 2021-08-23 | 2021-08-23 | Plugging cover and pressure-bearing test device |
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Address after: Room 403, Floor 4, Building 2, Yard 15, Ronghua South Road, Daxing District, Beijing Economic-Technological Development Area, 100176 Applicant after: Beijing Xinghe Power Aerospace Technology Co.,Ltd. Applicant after: Beijing Xinghe Power Equipment Technology Co.,Ltd. Applicant after: Sichuan Xinghe Power Space Technology Co.,Ltd. Address before: 100176 room 1301, 13 / F, building 7, yard 15, Ronghua South Road, Beijing Economic and Technological Development Zone, Daxing District, Beijing Applicant before: Xinghe power (Beijing) Space Technology Co.,Ltd. Applicant before: Beijing Xinghe Power Equipment Technology Co.,Ltd. Applicant before: Sichuan Xinghe Power Space Technology Co.,Ltd. |