A new structure bounce core
Patent Information
- Application Number
- CN202521905176.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-04
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-09-04
AI Technical Summary
The existing bouncy core structure is uneven, causing eccentric swaying, making installation difficult, hindering automated assembly, and resulting in low production efficiency.
The design employs a snap-fit structure consisting of a guide sleeve, guide post, and cover. The upper limit slider of the guide post engages with the guide groove inside the guide sleeve. Combined with the reciprocating groove structure of the spring and hook, this enables stable switching of the guide post and assembly in one direction.
It improves the stability and reliability of the bouncing core, simplifies the installation process, enables automated assembly, and improves assembly efficiency.
Smart Images

Figure CN224932276U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of bouncing cores, and in particular to a new type of bouncing core. Background Technology
[0002] There are various types of spring-loaded valve cores on the market, which are widely used in products such as basin drains, sink drains, floor drains, and bathtub drains to achieve the valve function of sealing and opening.
[0003] However, existing bouncy core structures have many shortcomings. For example, uneven wall thickness can easily lead to eccentricity and significant wobbling, affecting performance. In addition, the assembly process usually involves installation in two directions, making it difficult to automate and resulting in low production efficiency. Utility Model Content
[0004] In view of the aforementioned problems with existing bouncing cores, the aim is to provide a new structural bouncing core.
[0005] The specific technical solution is as follows: A novel structural bouncing core includes: Guide sleeve; A cover, wherein the cover is connected to one end of the guide sleeve by a snap-fit structure; A guide post, one end of which is slidably disposed within the guide sleeve, includes an extendable position and a retractable position that can be switched between each other; A spring-loaded locking assembly is disposed between the cover and the guide post. Force can be applied inward through the other end of the guide post to lock the guide post to the extended or retracted position. The inner wall of one end of the guide sleeve is formed with at least one guide groove along the axial direction. The guide post has at least one limiting slider, which is slidably disposed in the guide groove and can be limited and engaged with the side wall of the guide groove near the other end of the guide sleeve.
[0006] As a further improvement and optimization of this solution, the inner wall of the guide sleeve is formed with at least one positioning groove penetrating both ends of the guide sleeve along the axial direction, and the outer wall of the guide post has at least one rib, which is slidably disposed in the positioning groove.
[0007] As a further improvement and optimization of this solution, the core locking assembly includes: A spring, wherein the spring is disposed between the sleeve and the guide post; The crochet hook has one end movably mounted on the cover, and one end of the guide post has a closed-loop reciprocating groove on its side wall. The other end of the crochet hook is slidably mounted in the reciprocating groove and elastically abuts against the bottom of the reciprocating groove. The reciprocating groove includes: a first inclined groove, a second inclined groove, a third inclined groove, a fourth inclined groove, and a first inclined groove connected in sequence. A "V"-shaped structure is formed between the first inclined groove and the fourth inclined groove, and between the second inclined groove and the third inclined groove. The groove depth of the first inclined groove is greater than the groove depth of the fourth inclined groove. The bottom of the second inclined groove and the third inclined groove are both inclined surfaces. The groove depth at the end where the second inclined groove connects to the first inclined groove is greater than the groove depth of the first inclined groove, and the groove depth at the other end is less than the groove depth at the end where the third inclined groove connects to the second inclined groove. The groove depth at the other end of the third inclined groove is less than the groove depth of the fourth inclined groove. When the other end of the hook is located at the connecting end of the first inclined groove and the second inclined groove, the guide post is in the retracted position; when the other end of the hook is located at the connecting end of the third inclined groove and the second inclined groove, the guide post is in the extended position.
[0008] As a further improvement and optimization of this solution, the hook includes a connecting part, one end of which is bent to form a mounting part and the other end is bent to form a sliding part. The mounting part is rotatably connected to the cover, and the sliding part is slidably disposed in the reciprocating groove and elastically abuts against the bottom of the reciprocating groove.
[0009] As a further improvement and optimization of this solution, a retaining spring is fitted on the outside of the cover, and the inner wall of the retaining spring is in elastic contact with the connecting part. The retaining spring elastically presses the connecting part so that the sliding part elastically abuts against the bottom of the reciprocating groove.
[0010] As a further improvement and optimization of this solution, the cover includes: a snap-fit part and a hook-fit part. The snap-fit part is installed inside one end of the guide sleeve through the snap-fit structure. The hook-fit part is connected to the outside of the snap-fit part. The hook-fit part has a mounting hole, and the connecting part is rotatably disposed in the mounting hole.
[0011] As a further improvement and optimization of this solution, the hook part has a groove on the outside, and the snap ring is engaged in the groove.
[0012] As a further improvement and optimization of this solution, the buckle structure includes a buckle located outside the buckling part and a slot located on one side wall of the guide sleeve, wherein the buckle and the slot engage in a buckling fit.
[0013] As a further improvement and optimization of this solution, the outer wall of one end of the guide sleeve and the outer wall of the other end of the guide post both have external threads.
[0014] As a further improvement and optimization of this solution, the outer wall of the guide sleeve is provided with several reinforcing ribs distributed circumferentially.
[0015] The positive effects of the above technical solution compared with the existing technology are: In the assembly process of this utility model, the guide post and the spring core locking assembly can be smoothly installed from one end of the guide sleeve in sequence. When the guide post is installed, the limiting slider on it will slide precisely into the guide groove formed axially on the inner wall of one end of the guide sleeve. The limiting slider and the guide groove are tightly fitted to the side wall near the other end of the guide sleeve, effectively preventing the guide post from detaching from the other end of the guide sleeve. At the same time, the sliding fit design between the limiting slider and the guide groove is very ingenious. When the guide post switches between the extended position and the retracted position, it can ensure that the guide post always remains stable and avoids eccentricity or shaking, which greatly improves the stability and reliability of the spring core. Finally, the cover is firmly installed on one end of the guide sleeve through the buckle structure. This design enables the entire spring core to be assembled in one direction, creating favorable conditions for automated assembly and thus effectively improving assembly efficiency. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of a novel bouncy core according to this utility model; Figure 2 This is an explosion diagram of a novel bouncy core according to the present invention; Figure 3 This is a cross-sectional view of the guide sleeve of a novel bouncing core according to this utility model; Figure 4 This is an exploded schematic diagram of the core locking assembly of a novel bouncing core according to the present invention. Figure 5 This is a schematic diagram of the reciprocating slide groove of a novel bouncing core according to this utility model; In the attached diagram: 1. Guide sleeve; 2. Guide post; 3. Cover; 4. Snap-fit structure; 5. Spring core locking assembly; 11. Reinforcing rib; 12. External thread; 13. Bayonet; 14. Guide groove; 15. Positioning groove; 21. Limiting slider; 22. Rib; 31. Snap-fit part; 32. Hook-fit part; 33. Guide part; 34. Snap-fit; 35. Mounting hole; 36. Slot; 51. Reciprocating groove; 52. Hook; 53. Spring; 54. Snap ring; 511. First inclined groove; 512. Second inclined groove; 513. Third inclined groove; 514. Fourth inclined groove; 521. Connecting part; 522. Sliding part; 523. Mounting part. Detailed Implementation
[0017] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model based on the specific circumstances.
[0020] Figure 1 This is a schematic diagram of the structure of a novel bouncy core according to this utility model; Figure 2 This is an explosion diagram of a novel bouncy core according to the present invention; Figure 3 This is a cross-sectional view of the guide sleeve of a novel bouncing core according to this utility model; Figure 4 This is an exploded schematic diagram of the core locking assembly of a novel bouncing core according to the present invention. Figure 5 This is a schematic diagram of the reciprocating slide groove of a novel bouncing core according to this utility model. Figure 1-5 The diagram illustrates a novel bouncy core structure according to a preferred embodiment, comprising a guide sleeve 1, a cover 3, a guide post 2, and a core locking assembly 5. The cover 3 is connected to one end of the guide sleeve 1 via a snap-fit structure 4. One end of the guide post 2 is slidably disposed within the guide sleeve 1, and includes an extendable position and a retractable position that can be switched between each other. The core locking assembly 5 is disposed between the cover 3 and the guide post 2, and can be locked to the extendable or retracted position by applying force inward through the other end of the guide post 2. The inner wall of one end of the guide sleeve 1 forms at least one guide groove 14 along the axial direction. The guide post 2 has at least one limiting slider 21, which is slidably disposed within the guide groove 14 and can be limited and engaged with the side wall of the guide groove 14 near the other end of the guide sleeve 1.
[0021] In this application, during the assembly process, the guide post 2 and the spring core locking assembly 5 can be smoothly inserted from one end of the guide sleeve 1 in sequence. When the guide post 2 is inserted, the limiting slider 21 on it will slide precisely into the guide groove 14 formed axially on the inner wall of one end of the guide sleeve 1. The limiting slider 21 and the guide groove 14 are tightly fitted to the side wall near the other end of the guide sleeve 1, which effectively prevents the guide post 2 from detaching from the other end of the guide sleeve 1. At the same time, the sliding fit design between the limiting slider 21 and the guide groove 14 is very ingenious. When the guide post 2 switches between the extended position and the retracted position, it can ensure that the guide post 2 always remains stable and avoids eccentricity or shaking, which greatly improves the stability and reliability of the spring core. Finally, the cover 3 is securely installed on one end of the guide sleeve 1 through the snap-fit structure 4. This design enables the entire spring core to be assembled in one direction, creating favorable conditions for automated assembly and thus effectively improving assembly efficiency.
[0022] Furthermore, in a preferred embodiment, the inner wall of the guide sleeve 1 has at least one positioning groove 15 extending through both ends of the guide sleeve 1 along the axial direction, and the outer wall of the guide post 2 has at least one rib 22, which is slidably disposed within the positioning groove 15. The cooperation between the positioning groove 15 and the rib 22 further enhances the guiding effect of the guide post 2 within the guide sleeve 1, prevents the rotation and wobbling of the guide post 2, and improves the structural stability of the bouncing core.
[0023] Furthermore, in a preferred embodiment, the spring core locking assembly 5 includes a spring 53 and a hook 52. The spring 53 is disposed between the cover 3 and the guide post 2. One end of the hook 52 is movably disposed on the cover 3. One end of the guide post 2 has a closed-loop reciprocating groove 51 on its sidewall. The other end of the hook 52 is slidably disposed in the reciprocating groove 51 and elastically abuts against the bottom of the reciprocating groove 51. The reciprocating groove 51 includes: a first inclined groove 511, a second inclined groove 512, a third inclined groove 513, a fourth inclined groove 514, and a first inclined groove 511 connected in sequence. A "V"-shaped structure is formed between the first inclined groove 511 and the fourth inclined groove 514, and between the second inclined groove 512 and the third inclined groove 513. The depth of the inclined groove 511 is greater than the depth of the fourth inclined groove 514. The bottoms of the second inclined groove 512 and the third inclined groove 513 are both inclined surfaces. The depth of the second inclined groove 512 at the end connected to the first inclined groove 511 is greater than the depth of the first inclined groove 511, and the depth of the other end is less than the depth of the third inclined groove 513 at the end connected to the second inclined groove 512. The depth of the other end of the third inclined groove 513 is less than the depth of the fourth inclined groove 514. When the other end of the hook 52 is located at the end connected to the first inclined groove 511 and the second inclined groove 512, the guide post 2 is in the retracted position. When the other end of the hook 52 is located at the end connected to the third inclined groove 513 and the second inclined groove 512, the guide post 2 is in the extended position. The design of spring 53 and hook 52 enables the elastic locking and position switching of guide post 2; the special structure of reciprocating slide 51 allows hook 52 to slide smoothly in the slide, realizing the stable extension and retraction of guide post 2, and improving the operational flexibility and reliability of the bouncing core.
[0024] Furthermore, in a preferred embodiment, the hook 52 includes a connecting portion 521. One end of the connecting portion 521 is bent to form a mounting portion 523, and the other end is bent to form a sliding portion 522. The mounting portion 523 is rotatably connected to the cover 3, and the sliding portion 522 is slidably disposed within the reciprocating groove 51 and elastically abuts against the bottom of the reciprocating groove 51. The special structural design of the hook 52 allows it to slide flexibly within the reciprocating groove 51 while maintaining elastic contact with the bottom of the groove, ensuring the stable operation of the bouncing core.
[0025] Furthermore, in a preferred embodiment, a retaining spring 54 is fitted onto the outside of the cover 3, and the inner wall of the retaining spring 54 elastically contacts the connecting part 521. The retaining spring 54 elastically presses the connecting part 521, so that the sliding part 522 elastically abuts against the bottom of the reciprocating groove 51. The design of the retaining spring 54 provides elastic contact force between the hook 52 and the reciprocating groove 51, improving the stability and durability of the bouncing core.
[0026] Furthermore, in a preferred embodiment, the cover 3 includes a snap-fit portion 31 and a hook portion 32. The snap-fit portion 31 is installed inside one end of the guide sleeve 1 via a snap-fit structure 4, and the hook portion 32 is connected to the outside of the snap-fit portion 31. The hook portion 32 has a mounting hole 35, and the connecting portion 521 is rotatably disposed within the mounting hole 35. The special structural design of the cover 3 allows it to be easily installed on the guide sleeve 1 via the snap-fit structure 4, while also providing installation space for the hook 52, simplifying the assembly process.
[0027] Specifically, the diameter of the mounting hole 35 is slightly larger than the diameter of the connecting part 521. The purpose is to allow the sliding part 522 to slide smoothly between the first inclined groove 511, the second inclined groove 512, the third inclined groove 513 and the fourth inclined groove 514 with different groove depths.
[0028] Even better, the snap-fit part 31 has a relief opening to allow the connection part 521 of the hook 52 to pass.
[0029] Furthermore, as a preferred embodiment, the hook portion 32 has a groove 36 on its exterior, and the retaining spring 54 is engaged in the groove 36. The design of the groove 36 allows the retaining spring 54 to be firmly engaged on the cover 3, preventing the retaining spring 54 from falling off or shifting, and improving the structural stability of the spring core.
[0030] Furthermore, as a preferred embodiment, the snap-fit structure 4 includes a snap-fit 34 disposed outside the snap-fit portion 31 and a latch 13 disposed on one end sidewall of the guide sleeve 1, wherein the snap-fit 34 and the latch 13 engage in a snap-fit fit. The design of the snap-fit structure 4 allows the cover 3 to be easily connected to the guide sleeve 1 via the snap-fit 34, thereby improving assembly efficiency and structural stability.
[0031] Even better, in order to make it easier for the buckle 34 to engage with the slot 13 and to improve the engagement strength between the cover 3 and the guide sleeve 1, the top of the engaging part 31 extends upward with a guide part 33, which can slide with the positioning groove 15.
[0032] Even better, the openings of the positioning groove 15 and the guide slide groove 14 near the end of the cover 3 are both flared, so that the limiting slider 21 can slide into the guide slide groove 14 or the rib 22 / guide part 33 can slide into the positioning groove 15.
[0033] Furthermore, as a preferred embodiment, the outer wall of one end of the guide sleeve 1 and the outer wall of the other end of the guide post 2 both have external threads 12 for connecting external parts. The design of the external threads 12 allows the guide sleeve 1 and the guide post 2 to be easily connected to external parts, improving the applicability and flexibility of the bouncing core.
[0034] Furthermore, as a preferred embodiment, the outer wall of the guide sleeve 1 is provided with several reinforcing ribs 11 distributed circumferentially. This enhances the structural strength of the guide sleeve 1 and improves the durability and impact resistance of the bouncing core.
[0035] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A novel bouncy core structure, characterized in that, include: Guide sleeve; A cover, wherein the cover is connected to one end of the guide sleeve by a snap-fit structure; A guide post, one end of which is slidably disposed within the guide sleeve, includes an extendable position and a retractable position that can be switched between each other; A spring-loaded locking assembly is disposed between the cover and the guide post. Force can be applied inward through the other end of the guide post to lock the guide post to the extended or retracted position. The inner wall of one end of the guide sleeve is formed with at least one guide groove along the axial direction. The guide post has at least one limiting slider, which is slidably disposed in the guide groove and can be limited and engaged with the side wall of the guide groove near the other end of the guide sleeve.
2. The novel bouncy core according to claim 1, characterized in that, The inner wall of the guide sleeve has at least one positioning groove extending through both ends of the guide sleeve along the axial direction, and the outer wall of the guide post has at least one rib, which is slidably disposed in the positioning groove.
3. The novel bouncy core according to claim 1, characterized in that, The core locking assembly includes: A spring, wherein the spring is disposed between the sleeve and the guide post; The crochet hook has one end movably mounted on the cover, and one end of the guide post has a closed-loop reciprocating groove on its side wall. The other end of the crochet hook is slidably mounted in the reciprocating groove and elastically abuts against the bottom of the reciprocating groove. The reciprocating groove includes: a first inclined groove, a second inclined groove, a third inclined groove, a fourth inclined groove, and a first inclined groove connected in sequence. A "V"-shaped structure is formed between the first inclined groove and the fourth inclined groove, and between the second inclined groove and the third inclined groove. The groove depth of the first inclined groove is greater than the groove depth of the fourth inclined groove. The bottom of the second inclined groove and the third inclined groove are both inclined surfaces. The groove depth at the end where the second inclined groove connects to the first inclined groove is greater than the groove depth of the first inclined groove, and the groove depth at the other end is less than the groove depth at the end where the third inclined groove connects to the second inclined groove. The groove depth at the other end of the third inclined groove is less than the groove depth of the fourth inclined groove. When the other end of the hook is located at the connecting end of the first inclined groove and the second inclined groove, the guide post is in the retracted position; when the other end of the hook is located at the connecting end of the third inclined groove and the second inclined groove, the guide post is in the extended position.
4. The novel bouncy core according to claim 3, characterized in that, The hook includes a connecting part, one end of which is bent to form a mounting part and the other end is bent to form a sliding part. The mounting part is rotatably connected to the cover, and the sliding part is slidably disposed in the reciprocating groove and elastically abuts against the bottom of the reciprocating groove.
5. The novel bouncy core according to claim 4, characterized in that, The outer side of the cover is fitted with a retaining spring, and the inner wall of the retaining spring is in elastic contact with the connecting part. The retaining spring elastically presses the connecting part so that the sliding part elastically abuts against the bottom of the reciprocating groove.
6. The novel bouncy core according to claim 5, characterized in that, The cover includes a snap-fit part and a hook-fit part. The snap-fit part is installed inside one end of the guide sleeve through the snap-fit structure. The hook-fit part is connected to the outside of the snap-fit part. The hook-fit part has a mounting hole. The connecting part is rotatably disposed in the mounting hole.
7. The novel bouncy core according to claim 6, characterized in that, The hook has a groove on its outside, and the snap ring is engaged in the groove.
8. The novel bouncy core according to claim 6, characterized in that, The buckle structure includes a buckle located outside the buckling part and a latch located on one side wall of the guide sleeve, wherein the buckle and the latch engage with each other.
9. The novel bouncy core according to claim 1, characterized in that, Both the outer wall of one end of the guide sleeve and the outer wall of the other end of the guide post have external threads.
10. The novel bouncy core according to claim 1, characterized in that, The outer wall of the guide sleeve is circumferentially distributed with several reinforcing ribs.
