Driving leather cup and pipeline internal detection equipment driving device

Abstract

The utility model provides a driving leather cup and a driving device for detection equipment in a pipeline. The driving leather cup comprises a base, a first annular part and a second annular part which are sequentially connected in the axial direction. Wherein the longitudinal section of the first annular part is trapezoidal; first drainage holes are formed in the first annular part, and the first drainage holes are formed in the circumferential direction of the first annular part at intervals. According to the driving leather cup, only the first drainage hole is used, the problem that the drainage area is reduced or fails can be avoided, and therefore the stable drainage performance of the driving leather cup is kept; meanwhile, due to the design, it is guaranteed that the outer circle of the dish-shaped driving leather cup is complete, the supporting performance of the dish-shaped driving leather cup cannot be damaged due to edge slotting at the moment, and the dish-shaped driving leather cup can replace a conventional straight leather cup to achieve the barrel supporting effect.

Description

Technical Field

[0001] The present application relates to the technical field of pipeline detection, and in particular to a driving cup and a driving device for in-pipeline detection equipment. Background Art

[0002] The structure of existing pipeline detection equipment is multi-section, and each equipment section is connected by a universal joint. When running in the pipeline, the detection equipment requires the leather cup of the head equipment driving section to seal the pipeline to provide power, and the leather cups of the subsequent equipment sections need to release flow to prevent the equipment sections from "chasing the front" and causing the universal joint to be horizontal, causing the equipment to change its posture in the pipeline, causing the leather cup of the head equipment driving section to fail to seal the pipeline and release pressure, resulting in loss of power and the detection equipment being stuck in the pipeline.

[0003] In the related art, the cup discharge design is mostly an edge slotted design or a mixed design of a perforated cup + a slotted cup, and the equipment cup types are mostly a mixture of a disc cup and a straight cup.

[0004] However, in actual use, there are the following problems

[0005] 1. When the pipe wall is too thick and the inner diameter is too small, the grooved leather cup edge will shrink due to extrusion, and the leakage area will be greatly reduced or even completely fail. If the leakage area is too small or fails, the leather cup will provide a certain amount of power, which may easily cause the equipment to "push forward" and the pipeline detection equipment to suddenly relieve pressure and get stuck.

[0006] 2. The perforated leather cup + slotted leather cup are used together. The defects of the slotted leather cup itself always exist, and the perforated leather cups generally used in this way have smaller holes, fewer numbers, and insufficient drainage.

[0007] 3. Conventional disc leather cups have poor support due to the drainage grooves on the edges, so slotted straight leather cups are needed on the equipment to provide effective and stable support for the testing equipment. However, using too many straight leather cups will reduce the passability of the testing equipment. In addition, when the pipe wall thickness is too large and the inner diameter is too small, after the straight surface of the straight leather cup enters the pipe, the pipe is compressed into an inclined angle, and the drainage area of ​​the slotted straight leather cup will be greatly reduced, thereby generating a certain amount of power. In addition, the strong support of the straight leather cup itself, after the leather cup generates a certain amount of power, it is easy to cause the testing equipment to decompress and get stuck. Utility Model Content

[0008] In view of the problems existing in the leather cup discharge design in the above-mentioned related technologies, the present application aims to provide a driving device for driving the leather cup and the detection equipment in the pipeline. The driving leather cup has good support and can avoid the "pushing back and forward" phenomenon of the equipment section caused by the leakage area being too small or failing.

[0009] To this end, the first aspect of this application is to propose a driving cup

[0010] A second aspect of the present application is to provide a driving device for an in-pipeline detection device.

[0011] According to the first aspect of the present application, the present application proposes a driving leather cup, comprising: a base, a first annular portion and a second annular portion connected in sequence along the axial direction; wherein the longitudinal cross-section of the first annular portion is trapezoidal; a first leakage hole is opened on the first annular portion, and the first leakage holes are arranged at intervals along the circumference of the first annular portion.

[0012] Compared with the design of slotting the edge of the leather cup in the related art, when the pipe wall is too thick and the inner diameter is too small, the edge of the slotted leather cup will shrink due to extrusion, and the leakage area will be greatly reduced or even completely fail. When the leakage area is too small or fails, the leather cup will provide a certain amount of power, which may easily cause the equipment section to "push back and forward" phenomenon to occur, and the pipeline detection equipment will suddenly relieve pressure and get stuck; the driving leather cup provided in the embodiment of the present application only uses the first leakage hole, which can avoid the problem of leakage area reduction or failure, thereby allowing the driving leather cup to maintain stable leakage performance; at the same time, such a design also ensures that the outer circle of the dish-shaped driving leather cup is intact. At this time, the support of the dish-shaped driving leather cup will not be destroyed by the edge slots, and it can replace the conventional straight leather cup to achieve the cylinder support function.

[0013] In some technical solutions, the outer edge of the first leakage hole is optionally tangent to the two side edges of the first annular portion in the axial direction. This design can prevent the first leakage hole from shrinking too much when the driving cup is compressed by the cup through a thick pipe, causing failure.

[0014] In some technical solutions, optionally, the area of ​​the first leakage hole accounts for 10%-15% of the area of ​​the driving leather cup.

[0015] The area of ​​the first drain hole directly affects the fluid flow rate and the structural strength of the drive cup. If the first drain hole area is too small, fluid flow will be poor and fluid resistance will increase. If the first drain hole area is too large, the overall structural strength of the drive cup will be weakened, reducing its durability and service life. Therefore, in this embodiment of the application, the area of ​​the first drain hole is set within a range of 10% to 15% of the drive cup area. This ensures that the drive cup has sufficient structural strength and stability while maintaining fluid flow performance.

[0016] In some technical solutions, optionally, the first leakage holes are evenly distributed along the circumference of the first annular portion.

[0017] In the above technical solution, the first leakage holes are evenly arranged along the circumference to ensure that the fluid flows evenly around the leather cup, avoiding the problem of uneven fluid pressure caused by excessive or insufficient local leakage, thereby helping to maintain the pressure balance in the pipeline and reducing the impact of pressure fluctuations on pipeline detection equipment; at the same time, it also helps to maintain the balance of the driving leather cup to ensure its stable operation in a complex pipeline environment.

[0018] In some technical solutions, a first drain groove is optionally provided on the second annular portion. This design can improve the compressibility of the drive cup, thereby reducing its resistance in the pipeline, improving the passability of the detection equipment, and thus helping to improve the practicality of the drive cup.

[0019] In some technical solutions, the first drainage groove and the first drainage hole are optionally arranged in a staggered manner. This arrangement can avoid the first drainage groove and the first drainage hole from overlapping at the same position, thereby preventing uneven fluid pressure or structural damage caused by excessive local leakage. At the same time, the staggered arrangement can also ensure that when the driving cup is squeezed by the pipeline, the first drainage groove and the first drainage hole can function independently, thereby maintaining stable drainage performance.

[0020] In some technical solutions, optionally, the slotting angle of the first drainage slot is 30°±0.5°.

[0021] In some technical solutions, optionally, the groove depth of the first leakage groove does not exceed the pitch circle of the first leakage hole.

[0022] In practical applications, the shallower groove depth avoids the problem of reduced structural strength due to excessive depth, thereby helping to maintain the overall structural strength of the drive cup and extending the service life of the drive cup.

[0023] According to a second aspect of the present application, a driving device for an in-pipeline inspection device is provided, comprising: a driving cup as described above. Thus, the driving device for an in-pipeline inspection device has all the beneficial effects of any of the above technical solutions, which will not be elaborated here.

[0024] In some technical solutions, the drive device for the in-pipe inspection device optionally further includes a straight leather cup having a second drain hole formed therein; the second drain hole corresponds to the first drain hole and is coaxially disposed therewith, and the second drain hole and the first drain hole have equal diameters. This prevents the drain holes from blocking each other due to misalignment when the drive leather cup and the straight leather cup overlap after compression in the pipe, thereby preventing drainage failure.

[0025] In some technical solutions, optionally, a second drainage groove is further provided on the straight leather cup; wherein the second drainage groove and the second drainage hole are staggered.

[0026] Additional aspects and advantages of the present application will become apparent in the following description or may be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0028] Figure 1 A schematic structural diagram of a driving cup in an embodiment of the present application is shown;

[0029] Figure 2 A schematic structural diagram of a driving leather cup and a straight leather cup in an embodiment of the present application is shown;

[0030] Figure 3 A schematic structural diagram of a driving device of an in-pipeline detection device in an embodiment of the present application is shown.

[0031] in, Figures 1 to 3 The corresponding relationship between the reference numerals and component names is as follows:

[0032] 10 - driving cup; 110 - base; 120 - first annular portion; 121 - first drain hole; 130 - second annular portion; 131 - first drain groove;

[0033] 20-straight leather cup; 210-second drain hole; 220-second drain groove. DETAILED DESCRIPTION

[0034] In order to more clearly understand the above-mentioned objects, features and advantages of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other in the absence of conflict.

[0035] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0036] The following combination Figures 1 to 3 , the universal joint and universal joint assembly provided in the embodiments of the present application are described in detail through specific embodiments and their application scenarios.

[0037] like Figure 1 As shown, an embodiment of the present application provides a driving leather cup 10 , which includes a base 110 , a first annular portion 120 and a second annular portion 130 .

[0038] Specifically, the base 110, the first annular portion 120, and the second annular portion 130 are sequentially connected along the axial direction. The longitudinal cross-section of the first annular portion 120 is trapezoidal, that is, the diameter of the first annular portion 120 gradually increases from the base 110 toward the second annular portion 130, forming a disc-shaped structure with the base 100 and the second annular portion 130. The first annular portion 120 is provided with first drain holes 121, which are arranged at intervals along the circumference of the first annular portion 120.

[0039] Compared with the design of slotting the edge of the leather cup in the related art, when the pipe wall is too thick and the inner diameter is too small, the edge of the slotted leather cup will shrink due to extrusion, and the leakage area will be greatly reduced or even completely fail. When the leakage area is too small or fails, the leather cup will provide a certain amount of power, which may easily cause the equipment section to "push back and forward" phenomenon to occur, and the pipeline detection equipment will suddenly relieve pressure and get stuck; the driving leather cup 10 provided in the embodiment of the present application only uses the first leakage hole 121, which can avoid the problem of leakage area reduction or failure, thereby allowing the driving leather cup 10 to maintain stable leakage performance; at the same time, such a design also ensures that the outer circle of the dish-shaped driving leather cup 10 is complete. At this time, the support of the dish-shaped driving leather cup 10 will not be destroyed by the edge slots, and it can replace the conventional straight leather cup to achieve the cylinder support function.

[0040] In practical applications, the first leakage holes 121 are evenly arranged along the circumference of the first annular portion 120. The even circumferential arrangement of the first leakage holes 121 ensures that the fluid flows evenly around the cup, avoiding uneven fluid pressure caused by excessive or insufficient local leakage, thereby helping to maintain pressure balance within the pipeline and reducing the impact of pressure fluctuations on pipeline inspection equipment. It also helps maintain the balance of the drive cup 10, ensuring its stable operation in complex pipeline environments.

[0041] In the above embodiment, the outer edge of the first drain hole 121 is tangent to the two side edges of the first annular portion 120 in the axial direction. This design can prevent the first drain hole 121 from shrinking too much when the driving cup 10 is compressed by the cup of a thick pipe, thereby preventing failure.

[0042] In some embodiments, the area of ​​the first drain hole 121 accounts for 10%-15% of the area of ​​the drive cup 10. The area of ​​the first drain hole 121 directly affects the fluid flow rate and the structural strength of the drive cup 10. If the area of ​​the first drain hole 121 is too small, the fluid flow will be poor and the fluid resistance will increase. If the area of ​​the first drain hole 121 is too large, the overall structural strength of the drive cup 10 will be weakened, reducing its durability and service life. Therefore, in the embodiments of the present application, the area of ​​the first drain hole 121 is set within the range of 10%-15% of the area of ​​the drive cup. This ensures that the drive cup 10 has sufficient structural strength and stability while maintaining fluid flow performance.

[0043] In some embodiments, in testing sections where the support requirements for the drive cup 10 are less stringent, a first drain groove 131 is provided on the second annular portion 130 of the drive cup 10 for draining fluid. This design improves the compressibility of the drive cup 10, thereby reducing its resistance within the pipeline and improving the passability of the testing equipment.

[0044] In the above embodiment, the first drainage groove 131 and the first drainage hole 121 are staggered. This arrangement can avoid the first drainage groove 131 and the first drainage hole 121 from overlapping at the same position, thereby preventing problems such as uneven fluid pressure or structural damage caused by excessive local leakage. At the same time, the staggered arrangement can also ensure that when the driving cup 10 is squeezed by the pipeline, the first drainage groove 131 and the first drainage hole 121 can function independently, thereby maintaining stable drainage performance.

[0045] In practical applications, the first drain groove 131 has a slot angle of 30°. Considering the processing error, the slot angle of the first drain groove is 30°±0.5°.

[0046] In some embodiments, the groove depth of the first drainage groove 131 does not exceed the pitch circle of the first drainage hole 121. This design avoids the problem of reduced structural strength caused by excessive groove depth, thereby helping to maintain the overall structural strength of the drive cup 10 and extend the service life of the drive cup 10.

[0047] like Figure 1 、 Figure 2 and Figure 3 As shown, in some embodiments, the present application also proposes a driving device for in-pipeline detection equipment, the structure of which includes the driving leather cup 10 proposed in any of the above embodiments. Therefore, the driving device for in-pipeline detection equipment has all the beneficial effects of any of the above embodiments, which will not be repeated here.

[0048] Specifically, the driving device of the in-pipe detection equipment also includes a straight leather cup 20, which is provided with a second leakage hole 210. The second leakage hole 210 and the first leakage hole 121 correspond one to one and are coaxially arranged, and the aperture of the second leakage hole 210 is equal to the aperture of the second leakage hole 121; thereby avoiding that when the driving leather cup 10 and the straight leather cup 20 are superimposed after being squeezed in the pipeline, the leakage holes are blocked with each other due to the misaligned hole positions, resulting in leakage failure.

[0049] In some embodiments, a second drainage groove 220 is provided on the straight leather cup 20 , and the second drainage groove 220 and the second drainage hole 210 are staggered.

[0050] It should be clarified that in the claims, specification and drawings of this application, the term "plurality" refers to two or more. Unless otherwise clearly defined, the orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the purpose of more conveniently describing this application and making the description process simpler, and is not intended to indicate or imply that the device or element referred to must have the specific orientation described, be constructed and operated in a specific orientation. Therefore, these descriptions cannot be understood as limitations on this application. The terms "connect", "install", "fix" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection between multiple objects, or a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects, or an indirect connection between multiple objects through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood based on the specific circumstances of the above data.

[0051] In the claims, specification, and drawings of this application, the terms "one embodiment," "some embodiments," "a specific embodiment," and the like mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of this application. In the claims, specification, and drawings of this application, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0052] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A driving cup, characterized in that: include: A base, a first annular portion, and a second annular portion are sequentially connected along the axial direction; The longitudinal section of the first annular portion is trapezoidal; the first annular portion is provided with first leakage holes, which are arranged at intervals along the circumference of the first annular portion.

2. The driving cup according to claim 1, characterized in that: The outer edge of the first leakage hole and the two side edges of the first annular portion in the axial direction are tangent.

3. The driving cup according to claim 1, characterized in that: The area of ​​the first drain hole accounts for 10%-15% of the area of ​​the driving leather cup.

4. The driving cup according to claim 1, characterized in that: The first leakage holes are evenly distributed along the circumference of the first annular portion.

5. The driving cup according to claim 1, characterized in that: The second annular portion is provided with a first drain groove.

6. The driving cup according to claim 5, characterized in that: The first leakage groove and the first leakage hole are staggered.

7. The driving cup according to claim 5, characterized in that: The slotting angle of the first drain groove is 30°±0.5°.

8. The driving cup according to claim 5, characterized in that: The groove depth of the first leakage groove does not exceed the pitch circle of the first leakage hole.

9. A driving device for in-pipeline detection equipment, characterized in that: include: A drive cup according to any one of claims 1 to 8.

10. The driving device for in-pipeline detection equipment according to claim 9, characterized in that: Also included are straight leather bowls; A second leakage hole is provided on the straight leather cup; the second leakage hole corresponds to the first leakage hole one by one and is coaxially arranged, and the apertures of the second leakage hole and the first leakage hole are equal.

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