Annular clamp spring for breakpoint splicing

Abstract

The utility model relates to the technical field of bearings, and discloses a breakpoint splicing annular clamp spring which comprises a body and convex ribs arranged on the outer walls of the two axial ends of the body, the body is provided with a separation groove and free ends located on the two opposite sides of the separation groove, and a locking structure is arranged between the two free ends. The locking structure is used for connecting the two free ends so as to limit the two free ends in the circumferential direction of the body, and then the requirement for the control precision of the applied pressing force when the annular clamp spring is installed is lowered, so that the installation difficulty of the annular clamp spring is lowered; meanwhile, due to the fact that the locking structure can limit the two free ends in the circumferential direction of the body, the locking structure can restrain the two free ends, the annular structure of the annular clamping spring is more stable, the situation that the annular clamping spring is separated from the inner ring due to deformation is avoided, and the connection stability of the annular clamping spring and the inner ring is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of bearings, and in particular relates to a breakpoint-connected annular retaining spring. Background Art

[0002] Double-row tapered roller bearings are double-row roller bearings with tapered raceways, which include two inner rings arranged opposite to each other, an outer ring sleeved outside the two inner rings, and rolling elements arranged between the inner ring and the outer ring. Since it has two inner rings, an annular retaining spring needs to be arranged between the two inner rings to increase the stability of the two inner rings.

[0003] In the related art, the annular retaining spring comprises a main body with a major arc cross section and convex ribs arranged on the outer walls of the two axial ends of the main body, the inner walls of the two inner rings close to each other are provided with annular grooves for accommodating the main body, and the groove walls of the annular grooves are provided with limiting grooves for accommodating the convex ribs, and after the annular retaining spring is installed to the two inner rings, the main body is located in the annular grooves of the two inner rings so that the inner wall of the annular retaining spring does not protrude from the inner wall of the inner ring, and the two convex ribs are respectively located in the limiting grooves of the two inner rings to limit the two inner rings, thereby increasing the stability of the inner rings. However, when installing the annular retaining spring, if the pressure applied to the two opposite sides of the annular retaining spring is large, the annular retaining spring is prone to metal fatigue, and then the ability of the annular retaining spring to recover deformation becomes poor, thereby causing the annular retaining spring to easily separate from the inner ring or the annular retaining spring to be unable to be installed to the inner ring; if the pressure applied to the two opposite sides of the annular retaining spring is small, the deformation of the annular retaining spring is small, thereby causing the annular retaining spring to be difficult to install in the two inner rings, thus increasing the difficulty of installing the annular retaining spring. Utility Model Content

[0004] The present application provides a breakpoint-connected annular retaining spring to ensure the connection stability between the annular retaining spring and the inner ring and reduce the difficulty of installing the annular retaining spring.

[0005] The technical solution adopted in this application is:

[0006] A breakpoint-reconnecting annular retaining spring comprises a main body and convex ribs arranged on the outer walls of the two axial ends of the main body, the main body has a separation groove and free ends located on opposite sides of the separation groove, a locking structure is arranged between the two free ends, and the locking structure is used to connect the two free ends to limit the two free ends in the circumferential direction of the main body.

[0007] By adopting the above-mentioned technical scheme, when installing the annular retaining spring in the present application, first press the separation groove to separate the two free ends, then press the two free ends to deform the two free ends, and then install one free end to the inner ring, and then apply pressure parallel to the radial direction of the annular retaining spring along the circumference of the annular retaining spring, so that the annular retaining spring is gradually clamped to the inner ring, and when pressing to the position of the other free end, apply pressing force toward the center of the inner ring to the free end and adjust the free end so that the two free ends are opposite, and then release the free end, so that the free end can restore its deformation and the locking structure connects the two free ends together.

[0008] To sum up, the requirement for controlling the pressing force applied when installing the annular retaining spring is reduced, thereby reducing the difficulty of installing the annular retaining spring; at the same time, since the locking structure can limit the two free ends in the circumferential direction of the main body, the locking structure constrains the two free ends, making the annular structure of the annular retaining spring more stable, thereby avoiding the situation where the annular retaining spring is separated from the inner ring due to deformation, thereby increasing the connection stability between the annular retaining spring and the inner ring.

[0009] Optionally, the locking structure includes a limiting portion provided at one of the free ends and a matching portion provided at the other free end, and the limiting portion and the matching portion are matched to stop in the circumferential direction of the body.

[0010] By adopting the above technical solution, after the annular retaining spring is installed on the inner ring, the limiting portion and the matching portion stop cooperate together, thereby preventing the annular retaining spring from deforming in its own circumferential direction, that is, the diameter of the annular retaining spring cannot change, thereby making the annular structure of the annular retaining spring more stable, thereby increasing the connection stability between the annular retaining spring and the inner ring.

[0011] Optionally, the limiting portion is a limiting plate, the matching portion is a limiting groove for accommodating the limiting plate, and the side wall of the limiting plate can cooperate with the groove wall of the limiting groove to stop the body in the circumferential direction.

[0012] By adopting the above technical solution, after the annular retaining spring is installed to the inner ring, the limiting plate is located in the limiting groove, that is, the limiting plate is plug-fitted with the limiting groove, and then the side wall of the limiting plate is matched with the groove wall stop of the limiting groove to realize the limitation of the relative movement of the two free ends, so that the annular structure of the annular retaining spring is more stable, thereby ensuring the connection stability between the annular retaining spring and the inner ring; at the same time, since the plug-fitting of the limiting plate and the limiting groove realizes the limitation of the two free ends, the plug-fitting of the limiting plate and the limiting groove is realized when the free end is installed to the inner ring, so as to reduce the difficulty of matching the limiting part and the matching part together, thereby further reducing the difficulty of installing the annular retaining spring.

[0013] Optionally, the limiting piece has a first end connected to the free end and a second end opposite to the first end, and a width of the first end is smaller than a width of the second end.

[0014] By adopting the above technical solution, since the width of the first end is smaller than the width of the second end, when the two free ends move in the direction away from each other, the side wall of the second end can cooperate with the groove wall stop of the limiting groove, and the inner wall of the inner ring can also stop the annular retaining spring to prevent the two free ends from moving in the direction away from each other; when the two free ends move in the direction approaching each other, the two free ends and the end of the second end can stop and cooperate with the groove wall of the limiting groove to prevent the two free ends from moving in the direction approaching each other, which may cause the annular retaining spring to separate from the inner ring, thereby ensuring the connection stability of the annular retaining spring and the inner ring.

[0015] Optionally, the limiting piece includes a connecting section connected to the free end and a limiting section connected to the connecting section, the end of the connecting section away from the limiting section forms the first end, the end of the limiting section away from the connecting section forms the second end, and the width of the limiting section is greater than the width of the connecting section.

[0016] By adopting the above technical solution, since the width of the limiting section is greater than the width of the connecting section, the width of the first end is smaller than the width of the second end, thereby realizing the stop cooperation between the limiting plate and the wall of the limiting groove. At the same time, when the limiting plate cooperates with the stop of the wall of the limiting groove, the forces exerted on both are parallel to the circumference of the annular retaining spring, and there is no component force in other directions, thereby increasing the connection stability between the limiting plate and the limiting groove, and then increasing the stability of the annular retaining spring.

[0017] Optionally, the width of the limiting piece gradually increases from the first end to the second end, so that the width of the first end is smaller than that of the second end.

[0018] By adopting the above-mentioned technical scheme, since the width of the first end is smaller than the width of the second end, which is formed by the gradual increase of the width of the limiting plate from the first end to the second end, when the limiting plate cooperates with the groove wall of the limiting groove, the opposite sides of the limiting plate and the opposite sides of the limiting groove are both stopped and cooperated, so as to increase the stop cooperation area between the limiting plate and the limiting groove, thereby further increasing the connection stability of the two free ends, further ensuring the annular structure stability of the annular retaining spring, and further increasing the connection stability between the annular retaining spring and the inner ring.

[0019] Optionally, there is a gap between the peripheral side of the limiting plate and the groove wall of the limiting groove, so that a movement clearance is formed between the limiting plate and the limiting groove.

[0020] By adopting the above technical scheme, since there is a gap between the circumferential side of the limit plate and the groove wall of the limit groove, a movement clearance for the two free ends to move relative to each other can be formed between the limit plate and the limit groove, so that the annular retaining spring can be automatically adjusted within a certain range to meet the needs of various working conditions. At the same time, the situation in which the life of the annular retaining spring is relatively low due to hard connection is avoided, so as to achieve the effect of extending the service life of the annular retaining spring; and it can also reduce the difficulty of matching the limit plate and the limit groove together, thereby reducing the difficulty of installing the annular retaining spring, so as to improve the assembly efficiency of the annular retaining spring.

[0021] Optionally, the main body has a limiting area opposite to the convex rib and a connecting area located between the limiting areas, and the limiting groove and the limiting piece are both located in the connecting area.

[0022] By adopting the above technical solution, since the limiting groove and the limiting plate are both located in the connection area, the limiting groove and the limiting plate are formed to avoid the rib, so as to avoid the situation where the rib structure strength is affected by the setting of the limiting groove or the limiting plate at the rib, thereby ensuring the limiting effect of the rib on the inner ring.

[0023] Optionally, the body has a width direction parallel to its own axial direction, and the central axis of the locking structure is arranged colinearly with the central axis of the body in its own width direction.

[0024] By adopting the above technical solution, since the central axis of the locking structure is colinear with the central axis of the body in its own width direction, the locking structure is located in the middle position in the width direction of the body, so that the forces at both ends of the body in the width direction are balanced, so as to increase the connection stability of the two free ends, thereby ensuring the connection stability between the annular retaining spring and the inner ring and ensuring the limiting effect of the annular retaining spring on the inner ring.

[0025] Optionally, the body is provided with a plurality of weight-reducing holes along its circumference.

[0026] By adopting the above-mentioned technical scheme, since the main body is provided with weight-reducing holes along its circumference, on the one hand, the influence of the locking structure on the weight of the annular retaining spring is reduced, thereby ensuring the lightweight of the bearing equipped with the annular retaining spring in the present application; on the other hand, the weight-reducing holes can also play a role in assisting the heat dissipation of the inner ring, so that the heat generated by the inner ring can be quickly discharged through the weight-reducing holes, thereby improving the heat dissipation efficiency of the inner ring to ensure the service life of the inner ring.

[0027] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0028] 1. The annular retaining spring in the present application includes a main body and convex ribs arranged on the outer walls of the two axial ends of the main body, the main body has a separation groove and free ends located on opposite sides of the separation groove, and a locking structure is arranged between the two free ends, and the locking structure is used to connect the two free ends to limit the two free ends in the circumferential direction of the main body, thereby reducing the requirement for control accuracy of the pressing force applied when installing the annular retaining spring, so as to reduce the difficulty of installing the annular retaining spring; at the same time, because the locking structure can limit the two free ends in the circumferential direction of the main body, so that the locking structure constrains the two free ends, the annular structure of the annular retaining spring is more stable, thereby avoiding the situation where the annular retaining spring is separated from the inner ring due to deformation, so as to increase the connection stability between the annular retaining spring and the inner ring.

[0029] 2. The locking structure in the present application includes a limiting portion provided at one of the free ends and a matching portion provided at the other free end. The limiting portion and the matching portion cooperate with each other in a circumferential stop manner of the main body, thereby preventing the annular retaining spring from deforming in its own circumferential direction. In other words, the diameter of the annular retaining spring cannot change, thereby making the annular structure of the annular retaining spring more stable, thereby increasing the connection stability between the annular retaining spring and the inner ring.

[0030] 3. The limiting part in the present application is a limiting plate, and the matching part is a limiting groove for accommodating the limiting plate. The side wall of the limiting plate can cooperate with the groove wall of the limiting groove to stop the circumference of the main body to achieve the limitation of the relative movement of the two free ends, so that the annular structure of the annular retaining spring is more stable, thereby ensuring the connection stability between the annular retaining spring and the inner ring; at the same time, since the limiting plate and the limiting groove are plugged in to each other to achieve the limitation of the two free ends, the limiting plate and the limiting groove are plugged in to each other when the free ends are installed to the inner ring, so as to reduce the difficulty of matching the limiting part and the matching part together, thereby further reducing the difficulty of installing the annular retaining spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0032] Figure 1 This is a schematic structural diagram of the annular retaining spring in one embodiment of the present application;

[0033] Figure 2 This is a schematic structural diagram of the annular retaining spring from another perspective in one embodiment of the present application;

[0034] Figure 3 It is a partial structural schematic diagram of the annular retaining spring in one embodiment of the present application, mainly showing the extension piece;

[0035] Figure 4 This is a partial structural schematic diagram of the annular retaining spring in one embodiment of the present application, mainly showing the limiting groove;

[0036] Figure 5 This is a schematic structural diagram of the annular retaining spring in another embodiment of the present application.

[0037] Reference numerals:

[0038] 1. Main body; 11. Partition groove; 12. Free end; 13. Limiting area; 14. Connecting area; 2. Raised rib; 3. Locking structure; 31. Limiting piece; 311. Connecting section; 312. Limiting section; 32. Limiting groove. DETAILED DESCRIPTION

[0039] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0040] 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 protection scope of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features in each embodiment may be combined with each other without conflict.

[0041] In addition, in the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0042] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0044] Reference Figures 1 to 5 , discloses a breakpoint-connected annular retaining spring, comprising a main body 1 and convex ribs 2 arranged on the outer walls of the two axial ends of the main body 1, the main body 1 having a separation groove 11 and free ends 12 located on opposite sides of the separation groove 11, a locking structure 3 is arranged between the two free ends 12, and the locking structure 3 is used to connect the two free ends 12 to limit the two free ends 12 in the circumferential direction of the main body 1.

[0045] When installing the annular retaining ring in the present application, first press the separation groove 11 to separate the two free ends 12, and then press the two free ends 12 to deform the two free ends 12, and then install one free end 12 to the inner ring, and then apply pressure parallel to the radial direction of the annular retaining ring along the circumference of the annular retaining ring to the annular retaining ring so that the annular retaining ring is gradually clamped to the inner ring, and when pressing to the position of the other free end 12, apply pressing pressure toward the center of the inner ring to the free end 12 and adjust the free end 12 so that the two free ends 12 are opposite, and then release the free end 12, so that the free end 12 recovers its deformation and the locking structure 3 connects the two free ends 12 together.

[0046] To sum up, when installing the annular retaining spring in the present application, the requirement for controlling the accuracy of the pressing force applied during installation is reduced, thereby reducing the difficulty of installing the annular retaining spring; at the same time, since the locking structure 3 can limit the two free ends 12 in the circumferential direction of the main body 1, the locking structure 3 constrains the two free ends 12, making the annular structure of the annular retaining spring more stable, thereby avoiding the situation where the annular retaining spring is separated from the inner ring due to deformation, so as to increase the connection stability between the annular retaining spring and the inner ring.

[0047] It should be noted that the locking structure 3 is used to connect the two free ends 12 to limit the two free ends 12 in the circumferential direction of the main body 1, wherein limiting the two free ends 12 in the circumferential direction of the main body 1 means that after the two free ends 12 are connected by the locking structure 3, the two free ends 12 cannot move in the direction of approaching or moving away from each other in the circumferential direction of the main body 1.

[0048] The present application does not specifically limit the structure of the locking structure 3, and it can adopt any one of the following implementations:

[0049] Embodiment 1. In this embodiment, the locking structure 3 includes an extension piece extending from two free ends 12, wherein one extension piece is provided with a protrusion on the side facing the other extension piece, and the other extension piece is correspondingly provided with a groove structure for accommodating the protrusion, and the protrusion and the groove structure are plugged into each other to limit the two free ends 12 in directions away from each other, thereby increasing the annular structure stability of the annular retaining spring.

[0050] Implementation method 2. In this implementation method, refer to Figures 1 to 5 The locking structure 3 includes a limiting portion provided at one of the free ends 12 and a matching portion provided at the other free end 12 , and the limiting portion and the matching portion are matched in a circumferential stop manner of the body 1 .

[0051] After the annular retaining spring is installed on the inner ring, the limiting portion and the matching portion stop cooperate together, thereby preventing the annular retaining spring from deforming in its own circumferential direction, that is, the diameter of the annular retaining spring cannot change, thereby making the annular structure of the annular retaining spring more stable, thereby increasing the connection stability between the annular retaining spring and the inner ring.

[0052] In a preferred embodiment, referring to Figures 1 to 5 The limiting portion is a limiting piece 31 , and the matching portion is a limiting groove 32 for accommodating the limiting piece 31 . The side wall of the limiting piece 31 can cooperate with the groove wall of the limiting groove 32 in the circumferential direction of the main body 1 to stop.

[0053] Specifically, after the annular retaining ring is installed to the inner ring, the limiting plate 31 is located in the limiting groove 32, that is, the limiting plate 31 is plugged into the limiting groove 32, and then the side wall of the limiting plate 31 is matched with the groove wall stop of the limiting groove 32 to achieve the limitation of the relative movement of the two free ends 12, so that the annular structure of the annular retaining ring is more stable, thereby ensuring the connection stability between the annular retaining ring and the inner ring; at the same time, due to the plug-in cooperation between the limiting plate 31 and the limiting groove 32, the limitation of the two free ends 12 is achieved, and then the limiting plate 31 and the limiting groove 32 are plugged into when the free end 12 is installed to the inner ring, so as to reduce the difficulty of matching the limiting part and the matching part together, thereby further reducing the difficulty of installing the annular retaining ring.

[0054] Further, see Figure 3 and Figure 5 The limiting plate 31 has a first end connected to the free end 12 and a second end opposite to the first end, and the width of the first end is smaller than the width of the second end, so that when the two free ends 12 move in a direction away from each other, the side wall of the second end can cooperate with the groove wall stop of the limiting groove 32, and the inner wall of the inner ring can also stop the annular retaining spring to prevent the two free ends 12 from moving in a direction away from each other; and when the two free ends 12 move in a direction approaching each other, the two free ends 12 and the end portions of the second end can stop and cooperate with the groove wall of the limiting groove 32 to prevent the two free ends 12 from moving in a direction approaching each other, which may cause the annular retaining spring to separate from the inner ring, thereby ensuring the connection stability of the annular retaining spring and the inner ring.

[0055] The present application does not specifically limit the manner in which the width of the first end is smaller than the width of the second end, and any one of the following implementation examples may be adopted:

[0056] Implementation Example 1: In this implementation example, refer to Figures 1 to 4 The limiting piece 31 includes a connecting section 311 connected to the free end 12 and a limiting section 312 connected to the connecting section 311. The end of the connecting section 311 away from the limiting section 312 forms a first end, and the end of the limiting section 312 away from the connecting section 311 forms a second end. The width of the limiting section 312 is greater than the width of the connecting section 311, so that the width of the first end is smaller than the width of the second end, thereby realizing the stop cooperation between the limiting piece 31 and the groove wall of the limiting groove 32. At the same time, when the limiting piece 31 and the groove wall of the limiting groove 32 are stopped, the forces exerted on both are parallel to the circumference of the annular retaining spring, and there is no component force in other directions, thereby increasing the connection stability between the limiting piece 31 and the limiting groove 32, and then increasing the stability of the annular retaining spring.

[0057] Implementation Example 2: In this implementation example, refer to Figure 5 The width of the limiting piece 31 gradually increases from the first end to the second end so that the width of the first end is smaller than that of the second end, and then when the limiting piece 31 cooperates with the groove wall of the limiting groove 32, the opposite sides of the limiting piece 31 and the opposite sides of the limiting groove 32 are both stopped and cooperated, so as to increase the stop cooperation area between the limiting piece 31 and the limiting groove 32, thereby further increasing the connection stability of the two free ends 12, so as to further ensure the annular structure stability of the annular retaining spring, and further increase the connection stability between the annular retaining spring and the inner ring.

[0058] In a preferred embodiment, referring to Figure 1 , Figure 2 and Figure 5There is a gap between the circumferential side of the limiting plate 31 and the groove wall of the limiting groove 32, so that a movement clearance is formed between the limiting plate 31 and the limiting groove 32, so that the annular retaining spring can be automatically adjusted within a certain range to meet the needs of various working conditions, and at the same time avoid the situation where the life of the annular retaining spring is low due to hard connection, so as to achieve the effect of extending the service life of the annular retaining spring; and it can also reduce the difficulty of matching the limiting plate 31 and the limiting groove 32 together, thereby reducing the difficulty of installing the annular retaining spring, so as to improve the assembly efficiency of the annular retaining spring.

[0059] In a preferred embodiment, referring to Figure 3 and Figure 4 The main body 1 has a limiting area 13 opposite to the convex rib 2 and a connecting area 14 located between the limiting areas 13. The limiting groove 32 and the limiting piece 31 are both located in the connecting area 14, so that the limiting groove 32 and the limiting piece 31 are both avoided with the convex rib 2 to avoid the situation where the structural strength of the convex rib 2 is affected by the setting of the limiting groove 32 or the limiting piece 31 at the convex rib 2, thereby ensuring the limiting effect of the convex rib 2 on the inner ring.

[0060] In a preferred embodiment, referring to Figure 1 , Figure 2 and Figure 5 The main body 1 has a width direction parallel to its own axial direction, and the central axis of the locking structure 3 is arranged colinearly with the central axis of the main body 1 in its own width direction, so that the locking structure 3 is located in the middle position of the main body 1 in the width direction, so that the forces at both ends of the main body 1 in the width direction are balanced, so as to increase the connection stability of the two free ends 12, thereby ensuring the connection stability between the annular retaining spring and the inner ring and ensuring the limiting effect of the annular retaining spring on the inner ring.

[0061] In a preferred embodiment, the main body 1 is provided with a plurality of weight-reducing holes along its circumference. On the one hand, the influence of the locking structure 3 on the weight of the annular retaining ring is reduced, thereby ensuring the lightweight of the bearing equipped with the annular retaining ring in the present application. On the other hand, the weight-reducing holes can also assist in the heat dissipation of the inner ring, so that the heat generated by the inner ring can be quickly discharged through the weight-reducing holes, thereby improving the heat dissipation efficiency of the inner ring to ensure the service life of the inner ring.

[0062] Furthermore, a plurality of weight-reducing holes are evenly spaced along the circumference of the body 1 so that the weight is evenly distributed along the circumference of the body 1 to ensure the dynamic balance of the annular retaining spring.

[0063] Preferably, the plurality of weight-reducing holes are located between two convex ribs 2 to avoid the influence of the setting of the weight-reducing holes on the structural strength of the convex rib 2, thereby ensuring the limiting effect of the convex rib 2 on the inner ring and further ensuring the stability of the inner ring.

[0064] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0065] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0066] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A breakpoint-connected annular retaining spring, characterized in that: The invention comprises a main body (1) and convex ribs (2) arranged on the outer walls of the two axial ends of the main body (1); the main body (1) has a separation groove (11) and free ends (12) located on opposite sides of the separation groove (11); a locking structure (3) is arranged between the two free ends (12); the locking structure (3) is used to connect the two free ends (12) so as to limit the two free ends (12) in the circumferential direction of the main body (1).

2. A breakpoint-reconnection annular clip according to claim 1, characterized in that: The locking structure (3) comprises a limiting portion provided at one of the free ends (12) and a matching portion provided at the other free end (12), the limiting portion and the matching portion matching in a circumferential stop manner on the body (1).

3. The break-point-reconnection annular retaining spring according to claim 2, characterized in that: The limiting portion is a limiting plate (31), the matching portion is a limiting groove (32) for accommodating the limiting plate (31), and the side wall of the limiting plate (31) can cooperate with the groove wall of the limiting groove (32) to stop the body (1) in the circumferential direction.

4. The break-point-reconnection annular retaining spring according to claim 3, characterized in that: The limiting piece (31) comprises a first end connected to the free end (12) and a second end opposite to the first end, and the width of the first end is smaller than the width of the second end.

5. The break-point-reconnection annular clip according to claim 4, characterized in that: The limiting piece (31) comprises a connecting section (311) connected to the free end (12) and a limiting section (312) connected to the connecting section (311); an end of the connecting section (311) away from the limiting section (312) forms the first end; an end of the limiting section (312) away from the connecting section (311) forms the second end; and a width of the limiting section (312) is greater than a width of the connecting section (311).

6. The break-point-reconnection annular clip according to claim 4, characterized in that: The width of the limiting piece (31) gradually increases from the first end to the second end, so that the width of the first end is smaller than that of the second end.

7. The break-point-reconnection annular clip according to claim 3, characterized in that: There is a gap between the peripheral side of the limiting plate (31) and the groove wall of the limiting groove (32), so that a movement clearance is formed between the limiting plate (31) and the limiting groove (32).

8. The break-point-reconnection annular clip according to claim 3, characterized in that: The body (1) has a limiting area (13) opposite to the convex rib (2) and a connecting area (14) located between the limiting areas (13), and the limiting groove (32) and the limiting piece (31) are both located in the connecting area (14).

9. The annular clip for breakpoint connection according to claim 1, characterized in that: The body (1) has a width direction parallel to its own axial direction, and the central axis of the locking structure (3) is arranged colinearly with the central axis of the body (1) in its own width direction.

10. The break-and-repeat annular clip according to claim 1, characterized in that: The body (1) is provided with a plurality of weight-reducing holes along its circumference.

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