Protective sleeve assembly and hanging cup assembly for hanging cable receptacles

Abstract

This invention discloses a protective sleeve assembly and a hanging cup assembly for a wire holder. The hanging cup includes a wire separating pin and wire separating posts distributed around the pin. The assembly includes: a protective sleeve defining a limiting cavity and a limiting guide channel within it; the limiting cavity surrounding the limiting guide channel; one side of the limiting cavity being open and used to accommodate the wire separating posts; and both sides of the limiting guide channel being through and used to accommodate the wire separating pin; and a height gauge adapted to extend from one side of the limiting guide channel to press against the end of the wire separating pin, and the height gauge having a height calibration surface. The protective sleeve assembly for the hanging cup of this invention, by providing a limiting cavity and a limiting guide channel, prevents the wire separating pin from becoming misaligned, improves production efficiency, and the protective sleeve protects the wire separating posts, reducing scrap rates and production costs. It also offers better performance and a wider range of applications.

Description

Technical Field

[0001] This invention relates to the field of motor manufacturing technology, and in particular to a protective sleeve assembly for a wire hanger and a wire hanger assembly having the protective sleeve assembly. Background Technology

[0002] With technological advancements and economic development, high-speed rotor machinery is becoming increasingly widely used in engineering applications. All air compressors require high-speed motors for drive, and the stators of these high-speed motors are made by winding silicon steel sheets with copper-based enameled wire.

[0003] The existing high-speed motor winding method is the "automatic winding method using a wire-holding cup": After the winding machine winds the wire, the wire-holding cup needs to be manually removed and transported to the next station. During transportation, the wire-holding cup may collide due to employee operation errors, which can cause the wire-distributing pin to become misaligned or its height to change (extend / lower), causing the coil to jump to the other side of the wire-distributing pin during winding. This affects the normal operation of the next station, reduces production efficiency, and the plastic protective sleeve at the top of the outer wire-distributing column is easily scratched. At the same time, the enameled wire is easily damaged during winding, resulting in poor stator performance and increased scrap rate. There is room for improvement. Summary of the Invention

[0004] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a protective sleeve assembly for a wire-holding cup, which prevents the wire-distributing pin from becoming misaligned, improves production efficiency, protects the wire-distributing post, reduces the scrap rate, and thus reduces production costs.

[0005] According to an embodiment of the present invention, a protective sleeve assembly for a cable holder includes a cable separator and cable separator posts distributed around the cable separator. The assembly includes: a protective sleeve defining a limiting cavity and a limiting guide channel within the protective sleeve; the limiting cavity being distributed around the limiting guide channel; one side of the limiting cavity being open and used to accommodate the cable separator posts; and both sides of the limiting guide channel being through and used to accommodate the cable separator; and a height gauge adapted to extend from one side of the limiting guide channel to press against the end of the cable separator, and the height gauge having a height calibration surface.

[0006] The protective sleeve assembly of the wire-hanging cup according to an embodiment of the present invention, by setting a limiting receiving cavity and a limiting guide channel, prevents the wire-splitting pin from tilting, improves production efficiency, and the protective sleeve can protect the wire-splitting post, reduce the scrap rate, thereby reducing production costs, improving the performance and expanding the application range.

[0007] According to some embodiments of the present invention, the protective sleeve assembly of the hanging cup includes an inner sleeve portion and an outer sleeve portion. The outer sleeve portion is sleeved outside the inner sleeve portion and connected to the inner sleeve portion through an end plate. The outer sleeve portion, the end plate, and the inner sleeve portion together define the limiting receiving cavity, and the limiting guide channel is formed inside the inner sleeve portion.

[0008] According to some embodiments of the present invention, the protective sleeve assembly of the hanging cup is provided, wherein both the outer sleeve portion and the inner sleeve portion are constructed in a cylindrical shape, and the axial length of the outer sleeve portion is less than the axial length of the hanging cup and greater than the axial length of the inner sleeve portion.

[0009] According to some embodiments of the present invention, the end plate of the protective sleeve assembly for the hanging cup has an end plate plane formed on the side opposite to the limiting receiving cavity, and the leveling surface is adapted to be flush with the end plate plane when the dividing needle is centered.

[0010] According to some embodiments of the present invention, the protective sleeve assembly of the hanging cup has an end plate having a pressing surface formed on the side facing the limiting cavity, the pressing surface being adapted to press against the branch post, and the pressing surface being parallel to the plane of the end plate.

[0011] According to some embodiments of the present invention, the protective sleeve assembly of the hanging cup includes a height calibration gauge comprising a calibration part and a protrusion, the calibration part being connected to the protrusion, the calibration part being adapted to extend into the limiting guide channel to abut against the end of the dividing needle, the protrusion being located outside the limiting guide channel, and the height calibration surface being formed at the connection between the calibration part and the protrusion.

[0012] According to some embodiments of the present invention, the protective sleeve assembly of the hanging cup is provided, wherein the calibration part is constructed in a cylindrical shape, and the axis of the calibration part is parallel to the axis of the limiting guide channel.

[0013] According to some embodiments of the present invention, the protective sleeve assembly of the hanging cup has a protrusion constructed as a semi-cylindrical shape, and the axis of the protrusion coincides with the axis of the calibration post.

[0014] According to some embodiments of the present invention, in the protective sleeve assembly of the hanging cup, the end face of the end of the calibration portion away from the protrusion is configured as a pressing plane, the pressing plane being perpendicular to the axis of the calibration portion, and the pressing plane being adapted to contact the end of the dividing pin.

[0015] The present invention also proposes a hanging cup assembly.

[0016] According to an embodiment of the present invention, the hanging cup assembly is provided with a protective sleeve assembly for the hanging cup as described in any of the above claims.

[0017] The advantages of the aforementioned hanging cup assembly and the protective sleeve assembly of the hanging cup compared to the prior art are the same, and will not be repeated here.

[0018] Additional aspects and advantages of the invention 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 invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is a cross-sectional view of the hanging cup assembly according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the hanging cup assembly according to an embodiment of the present invention. Figure 1 ;

[0022] Figure 3 This is a schematic diagram of the structure of the hanging cup assembly according to an embodiment of the present invention. Figure 2 ;

[0023] Figure 4 This is a schematic diagram of the structure of the hanging cup assembly according to an embodiment of the present invention. Figure 3 .

[0024] Figure label:

[0025] Hanging cup assembly 100,

[0026] Thread hanger 1, thread separator 11, thread separator post 12

[0027] Protective sleeve 2, inner sleeve portion 21, limiting guide channel 22, outer sleeve portion 23, limiting receiving cavity 24, end plate 25, end plate plane 251, pressing plane 252.

[0028] Contour calibration specification 3, calibration part 31, protruding part 32, contour calibration surface 33. Detailed Implementation

[0029] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein 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 accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0030] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0031] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0032] The following is for reference. Figures 1-4 The protective sleeve assembly of the hanging cup according to an embodiment of the present invention is described to prevent the dividing pin 11 from tilting, improve production efficiency, protect the dividing post 12, reduce the scrap rate, and thus reduce production costs.

[0033] like Figures 1-4 As shown, according to an embodiment of the present invention, the protective sleeve assembly of the hanging cup includes a hanging cup 1 comprising a dividing needle 11 and dividing posts 12 distributed around the dividing needle 11, and includes a protective sleeve 2 and a height gauge 3.

[0034] The protective sleeve 2 defines a limiting cavity 24 and a limiting guide channel 22. The limiting cavity 24 is distributed around the limiting guide channel 22. One side of the limiting cavity 24 is open and is used to accommodate the dividing post 12. Both sides of the limiting guide channel 22 are open and are used to accommodate the dividing needle 11. The level gauge 3 is adapted to extend from one side of the limiting guide channel 22 to press against the end of the dividing needle 11. The level gauge 3 is provided with a level calibration surface 33.

[0035] The air compressor requires a high-speed motor for driving. The stator of the high-speed motor needs to be made by winding silicon steel sheets with copper-based enameled wire. The existing high-speed motor winding method is the "automatic winding method with wire cup", which means that the enameled wire is wound onto the wire cup 1 by a winding machine, and then subsequent operations are carried out to improve production efficiency.

[0036] Specifically, the wire holder 1 is provided with a wire separating needle 11 and a wire separating post 12. There are multiple wire separating posts 12, and the multiple wire separating posts 12 are arranged around the wire separating needle 11, that is, the wire separating post 12 is centrally located in the wire holder 1. The end of the wire separating post 12 is provided with a protective head, which can be made of plastic or other materials to prevent the winding post from damaging the enameled wire during the winding process.

[0037] Furthermore, the protective sleeve assembly of the hanging cup is provided with a protective sleeve 2, which is used to cover the end of the hanging cup 1 to protect the hanging cup 1. The protective sleeve 2 defines a limiting cavity 24 and a limiting guide channel 22. The limiting cavity 24 is open towards the side of the protective sleeve 2 closest to the hanging cup 1. When the protective sleeve 2 is covered at the end of the hanging cup 1, the hanging post can be placed in the limiting cavity 24 to limit and protect the hanging post, preventing damage to the protective head at the end of the hanging post. The limiting cavity 24 is distributed around the limiting guide channel 22, that is, the limiting guide channel 22 is centrally located in the protective sleeve 2 and extends through the protective sleeve 2 on both sides facing the hanging cup 1 and away from the hanging cup 1. The dividing needle 11 is placed in the limiting guide channel 22, thereby protecting the hanging cup 1 through the protective sleeve 2.

[0038] Furthermore, the protective sleeve assembly of the hanging cup is equipped with a height gauge 3. The height gauge 3 can be placed inside the limiting guide channel 22 from the end opposite to the hanging cup 1. The height gauge 3 is movable relative to the limiting guide channel 22. The dividing needle 11 is also placed in the limiting guide channel 22. The height gauge 3 is used to press against the end of the dividing needle 11. The height gauge 3 is equipped with a height calibration surface 33. When the protective sleeve 2 is fitted onto the end of the hanging cup 1, the height gauge 3 can be placed inside the limiting guide channel 22 and press against the end of the dividing needle 11. When the dividing needle 11 is skewed or its height changes, the height calibration surface 33 will shift, thereby allowing the performance of the hanging cup 1 to be judged, avoiding problems with the hanging cup 1 from affecting production efficiency.

[0039] According to the embodiment of the present invention, the protective sleeve assembly of the hanging cup prevents the dividing needle 11 from tilting by setting a limiting receiving cavity 24 and a limiting guide channel 22, thereby improving production efficiency. The protective sleeve 2 can also protect the dividing post 12, reduce the scrap rate, reduce production costs, and has better performance and wider applicability.

[0040] In some embodiments, such as Figure 1 As shown, the protective sleeve 2 includes an inner sleeve portion 21 and an outer sleeve portion 23. The outer sleeve portion 23 is sleeved outside the inner sleeve portion 21 and connected to the inner sleeve portion 21 through an end plate 25. The outer sleeve portion 23, the end plate 25 and the inner sleeve portion 21 together define a limiting and receiving cavity 24. A limiting and guiding channel 22 is formed inside the inner sleeve portion 21.

[0041] Specifically, the protective sleeve 2 is provided with an inner sleeve portion 21, and a limiting guide channel 22 is formed inside the inner sleeve portion 21. When the protective sleeve 2 is fitted onto the end of the hanging cup 1, the thread separating needle 11 can be placed inside the limiting guide channel 22, that is, the thread separating needle 11 is placed inside the inner sleeve portion 21. The protective sleeve 2 is also provided with an outer sleeve portion 23, which surrounds the inner sleeve portion 21, that is, the outer sleeve portion 23 is fitted onto the outside of the inner sleeve portion 21. The outer sleeve portion 23 and the inner sleeve portion 21 are connected by an end plate 25. The outer sleeve 23 and the inner sleeve 21 protrude toward the hanging cup 1 relative to the end plate 25, and the outer sleeve 23, the end plate 25 and the inner sleeve 21 together define the limiting cavity 24. When the protective sleeve 2 is fitted onto the end of the hanging cup 1, the splitter pin 12 can be placed in the limiting cavity 24, that is, the splitter pin 12 can be placed between the outer sleeve 23 and the inner sleeve 21. The inner sleeve 21 and the outer sleeve 23 limit the position of the splitter pin 11 and the splitter pin 12, and can play a protective role.

[0042] In some embodiments, such as Figures 1-4 As shown, both the outer sleeve portion 23 and the inner sleeve portion 21 are constructed in a cylindrical shape. The axial length of the outer sleeve portion 23 is less than the axial length of the hanging cup 1 and greater than the axial length of the inner sleeve portion 21.

[0043] Specifically, the protective sleeve 2 is provided with an inner sleeve portion 21 and an outer sleeve portion 23. The outer sleeve portion 23 is fitted outside the inner sleeve portion 21, and both the outer sleeve portion 23 and the inner sleeve portion 21 are cylindrical. The axes of the outer sleeve portion 23 and the inner sleeve portion 21 are aligned. The axial length of the outer sleeve portion 23 is less than the axial length of the wire hanger 1, and the axial length of the inner sleeve portion 21 is less than the axial length of the outer sleeve portion 23. The inner sleeve portion 21 is used to fit the wire separating needle 11. Setting the axial length of the inner sleeve portion 21 to be smaller can avoid problems such as the wire separating needle 11 being difficult to place in the limiting guide channel 22. Setting the outer sleeve portion 23 to be longer can provide better protection for the wire separating post 12. At the same time, setting the axial length of the outer sleeve portion 23 to be less than the axial length of the wire hanger 1 can save materials and make it easier for the protective sleeve 2 to fit onto the wire hanger 1.

[0044] In some embodiments, the end plate 25 has an end plate plane 251 formed on the side away from the limiting cavity 24, and the leveling surface 33 is adapted to be flush with the end plate plane 251 when the dividing needle 11 is centered.

[0045] Specifically, such as Figure 1As shown, the protective sleeve 2 is provided with an end plate 25. The outer sleeve portion 23 and the inner sleeve portion 21 are connected through the end plate 25. The end plate 25 has an end plate plane 251 on the side away from the limiting cavity 24. The end plate plane 251 is perpendicular to the axis of the inner sleeve portion 21 and the outer sleeve portion 23. When the protective sleeve 2 is fitted onto the end of the hanging cup 1, the hanging post is placed in the limiting cavity 24, and the hanging needle is placed in the limiting guide channel 22. The leveling gauge 3 can be placed in the limiting guide channel 22 and pressed against the end of the hanging needle. The leveling gauge 3 is provided with an end plate plane 251. When the dividing needle 11 is centered, the leveling surface 33 is flush with the end plate plane 251. The positional relationship between the leveling surface 33 and the end plate plane 251 can be used to determine whether the dividing needle 11 is centered. The performance of the hanging cup 1 can be judged intuitively, avoiding problems with the hanging cup 1 from affecting production efficiency.

[0046] In some embodiments, such as Figure 1 As shown, the end plate 25 has a pressing surface 252 formed on the side facing the limiting cavity 24. The pressing surface 252 is adapted to press against the branch post 12, and the pressing surface 252 is parallel to the end plate plane 251.

[0047] Specifically, the protective sleeve 2 is provided with an end plate 25. The end plate 25 has a pressing plane 252 on the side facing the limiting cavity 24. The pressing plane 252 is perpendicular to the axis of the inner sleeve portion 21 and the outer sleeve portion 23, and the end plate plane 251 is perpendicular to the axis of the inner sleeve portion 21 and the outer sleeve portion 23. That is, the pressing plane 252 and the end plate plane 251 are parallel. When the protective sleeve 2 is fitted onto the end of the hanging cup 1, the hanging post is placed in the limiting cavity 24, and the pressing plane 252 is in pressing contact with the branch post 12, thereby axially restricting the position of the protective sleeve 2 relative to the hanging cup 1.

[0048] In some embodiments, the contour gauge 3 includes a calibration part 31 and a protrusion 32. The calibration part 31 is connected to the protrusion 32. The calibration part 31 is adapted to extend to the limiting guide channel 22 to abut against the end of the dividing needle 11. The protrusion 32 is located outside the limiting guide channel 22, and the contour calibration surface 33 is formed at the connection between the calibration part 31 and the protrusion 32.

[0049] Specifically, such as Figure 1 and Figure 3As shown, the contour gauge 3 includes a calibration part 31, which matches the limiting guide channel 22 and can extend into the limiting guide channel 22. One end of the calibration part 31 can abut against the end of the dividing needle 11. The contour gauge 3 also includes a protrusion 32, the other end of which is connected to the protrusion 32. The other end of the protrusion 32 is a free end. When the calibration part 31 is placed inside the limiting guide channel 22, the protrusion 32 is located outside the limiting guide channel 22. When the protective sleeve 2 is fitted onto the end of the hanging cup 1, the calibration part 31 is placed inside the limiting guide channel 22, and the protrusion 32 is located outside the limiting guide channel 22. The user can adjust the contour gauge 3 through the protrusion 32 for easy operation. The contour calibration surface 33 is formed at the connection between the calibration part 31 and the protrusion 32, so that the contour calibration surface 33 can be flush with the end plate plane 251 for easy observation.

[0050] In some embodiments, the calibration part 31 is constructed as a cylinder, and the axis of the calibration part 31 is parallel to the axis of the limiting guide channel 22.

[0051] Specifically, such as Figure 1 As shown, the calibration part 31 is cylindrical, and the inner sleeve part 21 forms a limiting guide channel 22. The limiting guide channel 22 is a cylindrical channel. The calibration part 31 matches the limiting guide channel 22. The diameter of the end face of the calibration part 31 is less than or equal to the inner diameter of the limiting guide channel 22, so that the calibration part 31 can be placed inside the limiting guide channel 22 and can move relative to the limiting guide channel 22. The axis of the calibration part 31 is set to be parallel to the axis of the limiting guide channel 22. The contour calibration surface 33 is set perpendicular to the axis of the calibration part 31. When the axis of the calibration part 31 is parallel to the axis of the limiting guide channel 22, the contour calibration surface 33 is also set perpendicular to the axis of the limiting guide channel 22. The end plate plane 251 is set perpendicular to the axis of the limiting guide channel 22, so that the contour calibration surface 33 can be parallel to the end plate plane 251, which is convenient for observation.

[0052] In some embodiments, such as Figure 3 As shown, the protrusion 32 is constructed in a semi-cylindrical shape, and the axis of the protrusion 32 coincides with the axis of the calibration post.

[0053] Specifically, the contour gauge 3 includes a calibration part 31 and a protrusion 32. The calibration part 31 is connected to the protrusion 32. The calibration part 31 is cylindrical, and the protrusion 32 is semi-cylindrical. That is, the area of ​​the protrusion 32 at the connection is smaller than the area of ​​the calibration part 31 at the connection, thus forming a contour calibration surface 33 at the connection. This setting can save manufacturing materials, and the axis of the protrusion 32 coincides with the axis of the calibration post, so that when the calibration post is placed in the limiting guide channel 22 through the protrusion 32, it can be accurately placed, improving work efficiency.

[0054] In some embodiments, such as Figure 1 As shown, the end face of the calibration part 31 away from the protrusion 32 is constructed as a pressing plane 252. The pressing plane 252 is perpendicular to the axis of the calibration part 31 and is adapted to contact the end of the dividing needle 11.

[0055] Specifically, one end of the calibration part 31 can abut against the end of the dividing pin 11, and the other end is connected to the protrusion 32. The end of the calibration part 31 that abuts against the end of the dividing pin 11 is configured as a pressing plane 252, that is, the end face of the calibration part 31 away from the protrusion 32 is configured as a pressing plane 252. The pressing plane 252 is perpendicular to the axis of the calibration part 31. The leveling calibration surface 33 is also perpendicular to the axis of the calibration part 31, that is, the pressing plane 252 and the leveling calibration surface are perpendicular to each other. When the protective sleeve 2 is fitted onto the end of the hanging cup 1, the leveling gauge 3 can be placed inside the limiting guide channel 22, so that the pressing plane 252 contacts the end of the dividing needle 11, and the axis of the calibration part 31 is set parallel to the axis of the limiting guide channel 22. At this time, the positional relationship between the leveling gauge 33 and the end plate plane 251 can be compared. When the leveling gauge 33 is flush with the end plate plane 251, the dividing needle 11 is set in the center, that is, the hanging cup 1 is in good condition.

[0056] The present invention also proposes a hanging cup assembly 100.

[0057] According to an embodiment of the present invention, the hanging cup assembly 100 is provided with a protective sleeve assembly for the hanging cup as described above.

[0058] According to an embodiment of the present invention, the hanging cup assembly 100 is provided with a protective sleeve assembly for the hanging cup. The protective sleeve assembly for the hanging cup prevents the separating needle 11 from tilting by setting a limiting receiving cavity 24 and a limiting guide channel 22, thereby improving production efficiency. The protective sleeve 2 can also protect the separating post 12, reduce the scrap rate, reduce production costs, and has better performance and wider applicability.

[0059] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0060] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A protective sleeve assembly for a thread holder, the thread holder comprising a thread separating pin and thread separating posts distributed around the thread separating pin, characterized in that, include: A protective sleeve, wherein a limiting cavity and a limiting guide channel are defined within the protective sleeve, the limiting cavity is distributed around the limiting guide channel, one side of the limiting cavity is open and used to accommodate the dividing post, and both sides of the limiting guide channel are through and used to accommodate the dividing needle, the protective sleeve includes an inner sleeve portion and an outer sleeve portion, the outer sleeve portion is sleeved outside the inner sleeve portion and connected to the inner sleeve portion through an end plate, the outer sleeve portion, the end plate and the inner sleeve portion together define the limiting cavity, the limiting guide channel is formed inside the inner sleeve portion, and the end plate has an end plate plane formed on the side opposite to the limiting cavity; A height gauge is provided, which is adapted to extend from one side of the limiting guide channel to press against the end of the dividing pin. The height gauge has a height calibration surface, which is adapted to be flush with the end plate plane when the dividing pin is centered. The height gauge includes a calibration part and a protrusion, the calibration part is connected to the protrusion, the calibration part is adapted to extend to the limiting guide channel to abut against the end of the dividing pin, the protrusion is located outside the limiting guide channel, and the height calibration surface is formed at the connection between the calibration part and the protrusion.

2. The protective sleeve assembly for the hanging cup according to claim 1, characterized in that, Both the outer sleeve and the inner sleeve are cylindrical in shape. The axial length of the outer sleeve is less than the axial length of the hanging cup but greater than the axial length of the inner sleeve.

3. The protective sleeve assembly for the hanging cup according to claim 1, characterized in that, The end plate has a pressing surface on the side facing the limiting cavity, the pressing surface being adapted to press against the branch post, and the pressing surface being parallel to the plane of the end plate.

4. The protective sleeve assembly for the hanging cup according to claim 1, characterized in that, The calibration part is cylindrical in shape, and the axis of the calibration part is parallel to the axis of the limiting guide channel.

5. The protective sleeve assembly for the hanging cup according to claim 1, characterized in that, The protrusion is semi-cylindrical, and the axis of the protrusion coincides with the axis of the calibration part.

6. The protective sleeve assembly for the hanging cup according to claim 1, characterized in that, The end face of the calibration part away from the protrusion is constructed as a pressing plane, which is perpendicular to the axis of the calibration part and is adapted to contact the end of the dividing needle.

7. A hanging thread cup assembly, characterized in that, The protective sleeve assembly of the hanging cup as described in any one of claims 1-6 is provided.

Images