A sealing test plug

Abstract

The present invention discloses a sealing test plug, comprising: a clamping structure provided with an inferior arc-shaped clamping pipe orifice, the inner side of the clamping pipe orifice is provided with clamping blocks, the clamping blocks are used for clamping with the annular protrusion of the pipe head and are attached to the surface of the annular protrusion away from the pipe orifice; a movable structure including a driving member and a driven member, the driving member is rotatably connected to the clamping structure and is arranged at an interval from the clamping blocks, the driven member is rotatably connected to the driving member and is slidably connected to the clamping structure, one end of the driven member is arranged towards the clamping blocks and can reciprocate towards the clamping blocks under the drive of the driving member; a blocking structure is arranged on the end surface of the driven member towards the clamping blocks, and an elastic sealing pad is arranged on the surface facing the clamping blocks, the elastic sealing pad can cover the pipe orifice and seal the pipe orifice under the extrusion of the driven member. The sealing of the test plug can be controlled by rotation, with simple operation and convenient use. The present invention is applied to the field of sealing tests for water-cooled pipes.

Description

Technical Field

[0001] The present invention relates to the field of sealing performance testing of water-cooled pipes, and particularly to a sealing test plug. Background Art

[0002] Under the strong encouragement and advocacy of the country, the development trend of new energy vehicles is growing day by day. As an important part of new energy vehicles, the batteries of new energy vehicles also play an important role. Therefore, good airtightness of the battery tray of the vehicle is the key to the durability and safety of the vehicle battery. Therefore, the reliability and durability of the plugs used in the test are the guarantee for ensuring product quality and production efficiency.

[0003] The existing plugs for airtightness testing adopt an internal expansion type, which squeezes the sealing ring inside the water inlet to expand and seal. This method is likely to cause the size of the water inlet to be squeezed and enlarged, failing to meet the quality requirements. It is also inconvenient to remove the plug. One has to rotate it while applying force to pull it out. When pulling it out, it is easy to injure the hand due to excessive force. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present invention provides a sealing test plug, which can control the sealing of the test plug by rotation, with simple operation and convenient use.

[0005] The sealing test plug according to the first aspect embodiment of the present invention includes: a clamping structure, which is provided with a sub-arc-shaped clamping pipe orifice, and the inner side of the clamping pipe orifice is provided with a clamping block, and the clamping block is used for clamping with the annular protrusion of the pipe head and fitting with the side of the annular protrusion away from the pipe orifice; a moving structure, including a driving member and a driven member, the driving member is rotationally connected to the clamping structure and is spaced from the clamping block, the driven member is rotationally connected to the driving member and is slidably connected to the clamping structure, and one end of the driven member faces the clamping block and can reciprocate towards the clamping block under the drive of the driving member; a plugging structure, which is arranged on the end face of the driven member facing the clamping block, and an elastic sealing pad is arranged on the side facing the clamping block, and the elastic sealing pad can cover the pipe orifice and seal the pipe orifice under the extrusion of the driven member.

[0006] The sealing test plug according to the embodiment of the present invention has at least the following beneficial effects: When performing sealing, first align the clamping pipe orifice of the clamping structure with the pipe head, and make the clamping block located on the side of the annular protrusion on the pipe head away from the pipe orifice. Then align the plugging structure with the end face of the pipe head. By controlling the rotation of the driving member of the movable structure, the driving member drives the driven member to drive the plugging structure to move towards the end face of the pipe head until the plugging structure fits against the end face of the pipe head, and the clamping block is pressed against the side of the annular protrusion away from the pipe orifice to achieve relative pressing and fixing. And during the subsequent rotation process, a certain pressing force is applied, so that the elastic sealing gasket is compressed and deformed to achieve sealing, and this can be achieved by rotation, which is simple and convenient to use.

[0007] According to some embodiments of the present invention, the movable structure further includes a fixing member, the fixing member is fixedly arranged on the clamping pipe orifice, is spaced from the clamping block, a through hole coaxial with the clamping pipe head is provided on the fixing member, the driven member is slidably arranged in the through hole, the driving member is hinged to the fixing member through a hinge member, and has a first hinge axis and a second hinge axis in the same direction. The first hinge axis is perpendicular to the axis of the clamping pipe orifice, and there is a third hinge axis between the driving member and the driven member, and the third hinge axis is arranged in the same direction as the first hinge axis.

[0008] According to some embodiments of the present invention, a limiting member is provided on the hinge member, the limiting member is arranged in the same direction as the second hinge axis, and is located on the side opposite to the rotation direction of the driving member, and is used to limit the rotation angle of the driving member.

[0009] According to some embodiments of the present invention, the fixing member is a connecting bolt, a connecting screw hole is provided on the clamping structure, the connecting bolt is threadedly connected to the connecting screw hole, and the thread axis of the connecting bolt is arranged in the same direction as the axis of the through hole. Two radially arranged first hinge holes are provided on the outer peripheral wall of the connecting bolt, and two opposite first hinge columns are provided on the driving member, and the first hinge columns are hingedly arranged in the first hinge holes.

[0010] According to some embodiments of the present invention, the driving member is a holding handle, and a friction layer is provided on the outer peripheral surface of the holding handle.

[0011] According to some embodiments of the present invention, the driven member is a sliding rod. A radially arranged second hinge hole is provided on the outer peripheral wall of one end of the sliding rod, and an adjusting hole is provided on the end face of the other end. Internal threads are provided in the adjusting hole, and a protruding threaded column is provided on the surface of the plugging structure facing the driven member, and the threaded column is threadedly locked with the internal threads of the adjusting hole to adjust the distance between the plugging structure and the driven member.

[0012] According to some embodiments of the present invention, an adjusting bolt, an adjusting concave block and an adjusting nut are further provided between the movable structure and the plugging structure. The notch of the adjusting concave block is connected to the plugging structure. A locking through hole is provided at the bottom of the notch of the adjusting concave block. The bolt head of the adjusting bolt is arranged in the adjusting concave block and abuts against the bottom of the notch of the adjusting concave block. Its screw column extends out of the locking through hole and is inserted outside the adjusting convex block. The adjusting nut is locked to one side of the adjusting bolt extending out of the locking through hole to fix the adjusting concave block. One side of the adjusting bolt extending and contracting the adjusting nut is threadedly connected to the adjusting hole.

[0013] According to some embodiments of the present invention, the plugging structure further includes a plugging head, which is connected to the driven member. The plugging head faces the clamping block, and a plugging groove is provided on the surface facing the clamping block. The elastic sealing pad is arranged in the plugging groove.

[0014] According to some embodiments of the present invention, the plugging head is cylindrical, and its outer peripheral wall is slidably connected to the clamping structure.

[0015] According to some embodiments of the present invention, the clamping structure is a clamping frame. One end of the clamping frame is provided with the clamping pipe orifice, and the other end is provided with a connecting pipe orifice, which is connected to the movable structure.

[0016] According to some embodiments of the present invention, two opposite arc-shaped guiding tracks are provided in the clamping frame. The two guiding tracks can be combined into a cylindrical channel in a virtual manner, and the guiding tracks are used for slidably connecting with the plugging structure.

[0017] According to some embodiments of the present invention, scale lines are provided on the outer side of the arc-shaped guiding track.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following further describes the present invention in conjunction with the drawings and embodiments, where:

[0020] Figure 1 is a three-dimensional horizontal schematic diagram of the driving member of the sealing test plug of an embodiment of the present invention at 0°;

[0021] Figure 2 is a three-dimensional cross-sectional schematic diagram of the driving member of the sealing test plug of an embodiment of the present invention at 0°;

[0022] Figure 3 is a three-dimensional longitudinal schematic diagram of the driving member of the sealing test plug of an embodiment of the present invention at 0°;

[0023] Figure 4 The three-dimensional lateral schematic diagram of the active part of the sealing test plug of an embodiment of the present invention at 90°;

[0024] Figure 5 The three-dimensional longitudinal schematic diagram of the active part of the sealing test plug of an embodiment of the present invention at 90°;

[0025] Figure 6 The schematic diagram of the pipe head.

[0026] Reference numerals in the drawings:

[0027] Clamping structure 100; Clamping pipe orifice 110; Clamping block 111; Connecting pipe orifice 120; Guide track 130; Moving structure 200; Active part 210; Driven part 220; Adjusting hole 221; Fixing part 230; Hinge part 240; Limiting part 241; Sealing structure 300; Elastic sealing gasket 310; Adjusting bolt 320; Adjusting concave block 330; Adjusting nut 340; Pipe head 400; Annular protrusion 410. Detailed implementation manners

[0028] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0029] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as up and down, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0030] In the description of the present invention, "a plurality of" means more than two. If there is a description of first and second, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0031] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installation, and connection should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0032] Referring to Figures 1 to 6 As shown, a sealing test plug of an embodiment of the present invention includes:

[0033] The clamping structure 100 is provided with a sub-arc-shaped clamping pipe orifice 110. Inside the clamping pipe orifice 110, there is a clamping block 111. The clamping block 111 is used to be clamped with the annular protrusion 410 of the pipe head 400 and is in contact with the side of the annular protrusion 410 away from the pipe orifice.

[0034] The movable structure 200 includes a driving member 210 and a driven member 220. The driving member 210 is rotatably connected to the clamping structure 100 and is arranged at an interval from the clamping block 111. The driven member 220 is rotatably connected to the driving member 210 and is slidably connected to the clamping structure 100. One end of the driven member 220 faces the clamping block 111 and can reciprocate towards the clamping block 111 under the drive of the driving member 210.

[0035] The sealing structure 300 is arranged on the end face of the driven member 220 facing the clamping block 111. On the side facing the clamping block 111, there is an elastic sealing pad 310. The elastic sealing pad 310 can cover the pipe orifice and be compressed by the driven member 220 to seal the pipe orifice.

[0036] Among them, for the convenience of connection, an annular protrusion 410 is provided at a certain distance from the pipe head 400 of the condensate pipe to facilitate sealed connection.

[0037] Among them, a sub-arc means that the central angle is less than or equal to 180°, that is, an arc whose length does not exceed a semi-circle. The inside of the clamping pipe orifice 110 refers to the side facing the center of the circle.

[0038] It should be understood that during sealing, first align the clamping pipe orifice 110 of the clamping structure 100 with the pipe head 400 and make the clamping block 111 located on the side of the annular protrusion 410 of the pipe head 400 away from the pipe orifice. Then align the sealing structure 300 with the end face of the pipe head 400. By controlling the rotation of the driving member 210 of the movable structure 200, the driving member 210 drives the driven member 220 to drive the sealing structure 300 to move towards the end face of the pipe head 400 until the sealing structure 300 is in contact with the end face of the pipe head 400, and the clamping block 111 is pressed against the side of the annular protrusion 410 away from the pipe orifice, realizing relative pressing and fixing. And during subsequent rotation, apply a certain pressing force to make the elastic sealing pad 310 deformed by pressure to achieve sealing, and it can be achieved by rotation, which is simple and convenient to use.

[0039] Refer to Figures 1 to 5As shown, the movable structure 200 further includes a fixing member 230 which is fixedly arranged on the clamping pipe orifice 110, spaced from the clamping block 111. The fixing member 230 is provided with a through hole coaxial with the clamping pipe orifice 110. The driven member 220 is slidably arranged in the through hole. The driving member 210 is hinged to the fixing member 230 through a hinge member 240 and has a first hinge axis and a second hinge axis in the same direction. The first hinge axis is perpendicular to the axis of the clamping pipe orifice 110. There is a third hinge axis between the driving member 210 and the driven member 220, and the third hinge axis is arranged in the same direction as the first hinge axis.

[0040] It should be understood that during rotation, by rotating the driving member 210, the driving member 210 rotates around the fixing member 230. And when the driving member 210 rotates around the driven member 220, it will drive the driven member 220 to slide along the through hole on the fixing member, thereby changing the relative position between the driven member 220 and the clamping block 111, so that the driven member 220 can be clamped to the orifice of the water pipe.

[0041] Refer to Figures 1 to 5 As shown, the hinge member 240 is provided with a limiting member 241 which is arranged in the same direction as the second hinge axis and is located on the side opposite to the rotation direction of the driving member 210 for limiting the rotation angle of the driving member 210.

[0042] It should be understood that by setting the limiting member 241, the driving member 210 can only rotate within a certain angle. When it rotates to the point where it can no longer rotate, that is, the sealing is successful, which can effectively prevent excessive rotation and cause damage to the plug.

[0043] In this embodiment, the range of the angle formed by the axis of the driving member 210 and the axis of the clamping pipe orifice 110 is: 0° to 90°. Among them, when it is 0°, the driven member 220 is farthest from the clamping block 111. When it is 90°, the driven member 220 can exert the maximum extrusion force on the elastic sealing gasket 310, and the elastic sealing gasket 310 is in the maximum compression state.

[0044] Among them, the limiting member 241 is a limiting plate which is located on the side opposite to the rotation direction of the driving member 210. During its rotation, the distance between the limiting plate and the driven member 220 will gradually decrease until the limiting plate is clamped to the driven member 220 to achieve limiting.

[0045] Refer to Figures 1 to 5 As shown, the fixing member 230 is a connecting bolt. The clamping structure 100 is provided with a connecting screw hole. The connecting bolt is threadedly connected to the connecting screw hole, and the thread axis of the connecting bolt is arranged in the same direction as the axis of the through hole. Two radially arranged first hinge holes are provided on the outer peripheral wall of the connecting bolt. Two opposite first hinge columns are provided on the driving member 210, and the first hinge columns are hingedly arranged in the first hinge holes.

[0046] It should be understood that the clamping structure 100 and the movable structure 200 are fixed by locking the connecting bolts and the connecting screw holes, and the two opposite first hinge columns can make the force on the driving member 210 uniform, making it less likely to be damaged during use.

[0047] Refer to Figures 1 to 5 As shown, the driving member 210 is a gripping handle, and a friction layer is provided on the outer peripheral surface of the gripping handle.

[0048] It should be understood that the friction layer can increase the friction of the gripping handle and improve the comfort of use.

[0049] Refer to Figures 1 to 5 As shown, the driven member 220 is a sliding rod. A radially arranged second hinge hole is provided on the outer peripheral wall of one end of the sliding rod, and an adjustment hole 221 is provided on the end surface of the other end. An internal thread is provided in the adjustment hole 221. A protruding threaded post is provided on the surface of the sealing structure 300 facing the driven member 220, and the threaded post is locked and connected to the internal thread of the adjustment hole 221 to adjust the distance between the sealing structure 300 and the driven member 220.

[0050] It should be understood that when sealing the pipe head 400, first, the length from the end surface of the pipe head 400 to the side of the annular protrusion 410 away from the pipe orifice can be measured, and then the length that the elastic sealing gasket 310 needs to be compressed can be determined. The sum of the two is the length from the elastic sealing gasket 310 to the latch 111 when sealing and locking. In this embodiment, when the driving member 210 rotates to the 90° position, the length from the elastic sealing gasket 310 to the latch 111; rotate the driving member 210 to the 90° position, and adjust the relative position between the sealing structure 300 and the adjustment hole 221 by adjusting the threaded post on the sealing structure 300 to adjust the length from the elastic sealing gasket 310 to the latch 111 to achieve extrusion sealing. The plug can achieve adaptive adjustment when the lengths from the end surfaces of the two pipe heads 400 to the side of the annular protrusion 410 away from the pipe orifice are different, making the applicable range of the plug wider.

[0051] Specifically, an adjustment bolt 320, an adjustment concave block 330, and an adjustment nut 340 are further provided between the movable structure 200 and the sealing structure 300. The notch of the adjustment concave block 330 is locked and connected to the sealing structure 300 by a bolt. A locking through hole is provided at the bottom of the notch of the adjustment concave block 330. The bolt head of the adjustment bolt 320 is arranged in the adjustment concave block 330 and abuts against the bottom of the notch of the adjustment concave block 330. Its screw post is inserted outside the adjustment convex block through the locking through hole, and the adjustment nut 340 is locked to the side of the adjustment bolt 320 extending out of the locking through hole to fix the adjustment concave block 330. One side of the adjustment bolt 320 that telescopically adjusts the adjustment nut 340 is threadedly connected to the adjustment hole 221.

[0052] Refer to Figures 1 to 5As shown, the plugging structure 300 further includes a plugging head, which is connected to the driven member 220. The plugging head is arranged facing the clamping block 111, and a plugging groove is provided on the surface facing the clamping block 111. An elastic sealing pad 310 is arranged in the plugging groove.

[0053] It should be understood that placing the elastic sealing pad 310 in the plugging groove can effectively prevent the elastic sealing pad 310 from shifting, and can play a certain guiding role for the pipe head 400 during insertion, facilitating the extrusion of the pipe head 400 and the elastic sealing pad 310, and improving the accuracy of use.

[0054] Refer to Figures 1 to 5 As shown, the plugging head is cylindrical, and its outer peripheral wall is slidably connected to the clamping structure 100.

[0055] It should be understood that the cylindrical plugging head slides more smoothly in the clamping structure 100 and is more convenient to use.

[0056] Refer to Figures 1 to 5 As shown, the clamping structure 100 is a clamping frame. One end of the clamping frame is provided with a clamping pipe orifice 110, and the other end is provided with a connecting pipe orifice 120. The connecting pipe orifice 120 is connected to the movable structure 200.

[0057] It should be understood that the clamping frame is in a frame shape, and there is a certain space on the side wall, which is convenient for observing the plugging situation. At the same time, the structure is simple and convenient, and the cost is low.

[0058] Refer to Figures 1 to 5 As shown, two opposite arc-shaped guiding tracks 130 are provided in the clamping frame. The two guiding tracks 130 can be combined into a cylindrical channel in a virtual manner. The guiding tracks 130 are used for slidably connecting with the plugging structure 300.

[0059] It should be understood that the cylindrical plugging head can move along the cylindrical channel formed by the virtual combination of the two guiding tracks 130, making the movement of the plugging head smoother, and can move under guidance, facilitating the alignment of the plugging head with the pipe head 400, and making the use more efficient.

[0060] In this embodiment, scale lines are provided on the outer side of the arc-shaped guiding track 130.

[0061] It should be understood that the scale lines are convenient for determining the position of the annular protrusion 410 on the pipe head 400 during use, and for adjusting the length of the elastic sealing pad 310 to the clamping block 111, so as to increase the convenience of use and improve the use efficiency.

[0062] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. A sealing test plug, characterized in that Comprising: A clamping structure (100) is provided with an arcuate clamping pipe orifice (110). Inside the clamping pipe orifice (110), there is a clamping block (111). The clamping block (111) is used to be clamped with the annular protrusion (410) of the pipe head (400) and is in contact with the side of the annular protrusion (410) away from the pipe orifice. A movable structure (200) includes a driving member (210) and a driven member (220). The driving member (210) is rotatably connected to the clamping structure (100) and is spaced from the clamping block (111). The driven member (220) is rotatably connected to the driving member (210) and is slidably connected to the clamping structure (100). One end of the driven member (220) is arranged towards the clamping block (111) and can reciprocate towards the clamping block (111) under the drive of the driving member (210). A sealing structure (300) is arranged on the end face of the driven member (220) facing the clamping block (111). On the side facing the clamping block (111), there is an elastic sealing gasket (310). The elastic sealing gasket (310) can cover the pipe orifice and seal the pipe orifice under the extrusion of the driven member (220). The movable structure (200) further includes a fixing member (230). The fixing member (230) is fixedly arranged on the clamping pipe orifice (110) and is spaced from the clamping block (111). The fixing member (230) is provided with a through hole coaxial with the clamping pipe orifice (110). The driven member (220) is slidably arranged in the through hole. The driving member (210) is hinged to the fixing member (230) through a hinge member (240) and has a first hinge axis and a second hinge axis in the same direction. The first hinge axis is perpendicular to the axis of the clamping pipe orifice (110). There is a third hinge axis between the driving member (210) and the driven member (220), and the third hinge axis is arranged in the same direction as the first hinge axis. The hinge member (240) is provided with a limiting member (241). The limiting member (241) is arranged in the same direction as the second hinge axis and is located on the side opposite to the rotation direction of the driving member (210) for limiting the rotation angle of the driving member (210).

2. The sealing test plug according to claim 1, wherein: The fixing member (230) is a connecting bolt. The clamping structure (100) is provided with a connecting screw hole. The connecting bolt is threadedly connected to the connecting screw hole, and the thread axis of the connecting bolt is arranged in the same direction as the axis of the through hole. On the outer peripheral wall of the connecting bolt, there are two first hinge holes arranged radially. On the driving member (210), there are two opposite first hinge columns, and the first hinge columns are hinged in the first hinge holes.

3. The sealing test plug according to claim 1, characterized in that: The driving member (210) is a holding handle, and a friction layer is arranged on the outer peripheral surface of the holding handle.

4. The sealing test plug according to claim 1, wherein: The follower (220) is a sliding rod. A radially arranged second hinge hole is provided on the outer peripheral wall of one end of the sliding rod, and an adjustment hole (221) is provided on the end face of the other end. An internal thread is provided in the adjustment hole (221). A protruding threaded post is provided on the surface of the blocking structure (300) facing the follower (220). The threaded post is tightly connected to the internal thread of the adjustment hole (221) to adjust the distance between the blocking structure (300) and the follower (220).

5. The sealing test plug according to any one of claims 1 to 4, characterized in that: The blocking structure (300) further includes a blocking head, the blocking head is connected to the follower (220), the blocking head is arranged facing the clamping block (111), and a blocking groove is provided on the surface thereof facing the clamping block (111). The elastic sealing pad (310) is arranged in the blocking groove.

6. The sealing test plug according to claim 5, characterized in that: The blocking head is cylindrical, and its outer peripheral wall is slidably connected to the clamping structure (100).

7. The sealing test plug according to any one of claims 1 to 4, characterized in that: The clamping structure (100) is a clamping frame. One end of the clamping frame is provided with the clamping pipe orifice (110), and the other end is provided with a connecting pipe orifice (120). The connecting pipe orifice (120) is connected to the movable structure (200).

8. The sealing test plug according to claim 7, wherein: Two opposite arc-shaped guiding tracks (130) are provided in the clamping frame. The two guiding tracks (130) can be virtually combined into a cylindrical channel, and the guiding tracks (130) are used for slidably connecting with the blocking structure (300).

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