Mute bouncing core

Abstract

The utility model relates to a mute bouncing core, the bouncing core is arranged in a drainage hole of a bathroom drainage device and drives a sealing cover to close or open the drainage hole, the bouncing core is composed of a shell, a screw shaft, a rotating shaft, a guide groove piece, a spring and a base, the guide groove piece is attached to the circumferential surface of the screw shaft, a guide sliding groove is formed in the guide groove piece in the length direction, and the spring is arranged in the guide sliding groove. A rotary driving part and a positioning matching part are arranged in the guide chute; a circular groove is formed in the screw shaft, the rotating shaft is rotatably mounted in the circular groove, a positioning part is arranged at the outer end of the rotating shaft, the positioning part is slidably arranged in the guide sliding groove, and the screw shaft is fixed in the shell; the upper end of the spring is inserted into the through hole in the bottom end of the screw shaft and abuts against the inner end of the rotating shaft, the lower end of the spring abuts against the base, and the base is connected to the bottom end of the shell. The bouncing core is simple in structure and convenient to install and replace, and compared with a common bouncing core, the bouncing core has the silence using effect.

Description

A silent bouncing core Technical Fields

[0001] This utility model belongs to the field of hardware component manufacturing technology, specifically relating to a silent bouncing core. Background Technology:

[0002] Current push-button drain valves use a reciprocating core that produces considerable noise during opening and closing due to the interaction between its parts. 90% of existing reciprocating cores use a labyrinth groove structure, achieving reciprocating motion through the interaction of the labyrinth groove and the pull hook. Another 10% use an old-fashioned ballpoint pen-style structure. While these two types are noisy, their widespread use has led to a simplification of the reciprocating mechanism in current reciprocating cores, making it difficult to achieve a completely silent operation. Therefore, there is an urgent need for a silent reciprocating core to meet user needs. Invention content and utility model content:

[0003] The technical problem to be solved by this utility model is to provide a silent bouncing core. The silent bouncing core has a simple structure and is easy to install and replace. Compared with ordinary bouncing cores, it has a silent effect and can better meet the user's needs.

[0004] The technical solution of this utility model is to provide a silent bouncy core, which is set in the drain hole of a bathroom drain device and drives the cover to close or open the drain hole. The bouncy core consists of a shell, a screw shaft, a rotating shaft, a guide groove, a spring, and a base. The guide groove fits against the circumferential surface of the screw shaft and has a guide groove along its length. A rotation drive part and a positioning engagement part are set in the guide groove. A circular groove is set on the screw shaft, and the rotating shaft is rotatably installed in the circular groove. A positioning part is set at the outer end of the rotating shaft and is slidably set in the guide groove. The screw shaft is slidably set in the shell. The shaft center has a stepped through hole that is larger at the bottom and smaller at the top. The upper end of the spring is inserted into the through hole at the bottom end of the screw shaft and abuts against the step at the top of the through hole. The lower end of the spring abuts against the base, and the base is connected to the bottom end of the shell. In use, as the screw shaft drives the rotating shaft to move toward the rotation drive part, the rotation drive part touches the positioning part to drive the rotating shaft to rotate, and the positioning engagement part cooperates with the positioning part to restrict the downward movement of the screw shaft.

[0005] Preferably, there are two guide grooves, which are symmetrically fitted on the circumferential surface of the screw shaft. The two guide grooves are spaced apart on the circumferential surface of the screw shaft to form a mounting groove. The outer shell is placed outside the screw shaft and has a boss on it. The boss slides with the mounting groove to achieve limiting.

[0006] Preferably, there are two rotating shafts, which are symmetrically arranged in the two circular grooves of the screw shaft.

[0007] Preferably, the inner end of the rotating shaft is provided with a limiting part, and a limiting countersunk hole is provided in the circular groove, with the limiting part installed in the limiting countersunk hole.

[0008] Preferably, the top of the screw has an external thread that mates with the cap, facilitating connection and fixation.

[0009] Preferably, a guide post is provided on the base, and the lower end of the spring is sleeved on the guide post.

[0010] Preferably, the base has several snap-fit ​​protrusions along its circumference, and correspondingly, the outer shell has several snap holes that engage with the snap-fit ​​protrusions. The snap-fit ​​protrusions and snap holes are aligned one by one and snapped into the snap holes.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] The bouncing core of this invention has a simple structure and is easy to install and replace. Compared with ordinary bouncing cores, it can reduce the noise generated by the interaction between parts and has a quieter performance. Figure description:

[0013] Figure 1 is an exploded view of this utility model.

[0014] Figure 2 is a partial structural schematic diagram of this utility model.

[0015] Figure 3 is a structural schematic diagram of this utility model from another perspective.

[0016] Figure 4 is a schematic diagram of the guide groove structure on the guide groove component of this utility model embodiment.

[0017] Figure 5 is a schematic diagram of the closing process of this utility model.

[0018] Figure 6 is a schematic diagram of the opening process of this utility model. Detailed implementation method:

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0020] As shown in Figures 1-4, a silent bouncy valve core is installed inside the drain hole of a bathroom drain device, and drives the cover to close or open the drain hole. The bouncy valve core consists of a shell 1, a screw shaft 2, a rotating shaft 3, a guide groove 4, a spring 5, and a base 6. The guide groove 4 is attached to the circumferential surface of the screw shaft 2. In this embodiment, there are two guide grooves 4, which are symmetrically attached to the circumferential surface of the screw shaft 2, and the two guide grooves 4 are spaced apart on the circumferential surface of the screw shaft 2 to form an installation groove 410. A guide groove 411 is provided on the guide groove 4 along its length direction. A rotation drive part 412 and a positioning mating part 413 are provided in the guide groove 411. The screw shaft 2 is provided with two circular grooves 200, corresponding to the guide grooves 411. There are also two rotating shafts 3. The double-sided guide groove and rotating shaft structure can enhance the stability and service life of the valve core. The rotating shaft 3 is rotatably mounted on the circular groove 200. In the groove 200, a positioning part 301 is provided at the outer end of the rotating shaft 3. The positioning part 301 is slidably disposed in the guide groove 411. The screw shaft 2 is fixed in the outer shell 1. Specifically, the outer shell 1 is placed outside the screw shaft 2. The outer shell 1 is provided with two bosses 100. The two bosses 100 slide with the two mounting grooves 410 to achieve radial limiting, so that the screw shaft 2 can move axially relative to the outer shell 1 and prevent the parts from rotating. The shaft center of the screw shaft 2 has a stepped through hole with a larger bottom and a smaller top. The upper end of the spring 5 is inserted into the lower end of the through hole and abuts against the step at the upper part of the through hole. The lower end of the spring 5 abuts against the base 6. The base 6 is connected to the bottom end of the outer shell 1. In this embodiment, the base 6 is provided with several snap-fit ​​bosses 600 along the circumferential direction. Correspondingly, the outer shell 1 is provided with several snap-fit ​​holes 110 that snap-fit ​​with the snap-fit ​​bosses 600. The snap-fit ​​bosses 600 and the snap-fit ​​holes 110 are snap-fitted one by one.

[0021] As a preferred embodiment, the inner end of the rotating shaft 3 is provided with a limiting part 302, and a limiting countersunk hole 202 is provided in the circular groove 200. The limiting part 302 is installed in the limiting countersunk hole 202. That is to say, the installation method of the bouncing core is as shown in Figure 2. The limiting part 302 on the rotating shaft 3 is placed into the limiting countersunk hole 202 on the screw shaft 2, and the rotating shaft 3 can rotate freely. Then, the positioning part 301 on the rotating shaft 3 is placed into the guide groove 411 of the guide groove 4. After it is assembled, it is placed into the outer shell 1. The boss 100 on the inner wall of the outer shell 1 slides and engages with the mounting groove 410, as shown in Figure 3, to achieve the limiting effect and prevent the parts from rotating. Then, the spring 5 is placed in, and the base 6 is covered to complete the assembly. The base 6 is provided with four snap-fit ​​bosses 600 that engage with the snap-fit ​​holes 110 on the outer shell 1 to achieve the snap-fit ​​effect. In order to make the spring 5 work stably, the base 6 is provided with a guide post 612, and the lower end of the spring 5 is sleeved on the guide post 612.

[0022] In use, as the screw shaft 2 drives the rotating shaft 3 to move toward the rotation drive part 412, the rotation drive part 412 is used to contact the positioning part 301 to drive the rotating shaft 3 to rotate, and the positioning mating part 413 is used to cooperate with the positioning part 301 to restrict the downward movement of the screw shaft 2. In this embodiment, the positioning part 301 has a cross-section similar to the shape of the number eight, and is formed by joining the apexes of two isosceles triangles of the same size.

[0023] In addition, the top of the screw shaft 3 has an external thread that mates with the cap, making it easy to connect to the cap.

[0024] It should be noted that the upper part of the guide groove 411 is a groove adapted to the positioning part 301, and the lower part is provided with a rotation drive part 412 and a positioning mating part 413. The rotation drive part 412 includes side d, corner 2, side e, side f and side g, and the positioning mating part 413 includes corner 1, side h and side c. The following is a detailed description of the specific function implementation. The closing process is shown in Figure 5. The initial state is the open state. The state of the rotating shaft 3 in the guide groove 411 is as shown in Step 1. Corners A1 and A2 of the rotating shaft 3 are in contact with sides a and b of the guide groove part 4. When the spring core is pressed down, the contact point between corner A4 of the rotating shaft 3 and side d of the guide groove 411 is B1, as shown in Step 2. Corner A4 of the rotating shaft 3 slides along side d of the guide groove 411. After the rotating shaft 3 rotates by a certain angle, corner A3 contacts side e of the guide groove 411, reaching the lowest point. When stable, the contact point between A3 and edge e is B2. At this time, corner 2 of guide groove 411 contacts shaft 3, as shown in Step 3. After release, under the action of spring force, shaft 3 moves upward, and A1 contacts edge g, as shown in Step 4, with contact point B3. Shaft 3 starts to rotate, and corner 1 of guide groove 411 contacts shaft 3. After shaft 3 rotates a certain angle, A2 contacts edge h, with contact point B4. A4 contacts edge c, with contact point B5, forming a 3-point stable state with corner 1. At this time, the bouncing core is in a closed state, as shown in Step 5.

[0025] The opening process is shown in Figure 6. Initially, the shaft is closed. When the spring is pressed, the rotating shaft 3 moves downward to the state shown in Step 6. At this time, the edge of the rotating shaft 3 contacts the corner 2 of the guide groove 411. Under the action of the downward force and the corner 2, the rotating shaft 3 rotates counterclockwise. After rotating a certain angle, A2 contacts the edge e, and the contact point is B6. At this time, the rotating shaft 3 reaches a stable state under the constraint of B6 and the corner 2, as shown in Step 7. After releasing the spring, the rotating shaft 3 moves upward. During the movement, the edge of the rotating shaft 3 contacts the corner 1 of the guide groove 411, as shown in Step 8. Under the action of the corner 1 and the upward force, the rotating shaft 3 rotates counterclockwise until the straight edge of the rotating shaft 3 is horizontal with the edge h of the guide groove 411, as shown in Step 9. Finally, under the action of the spring, the rotating shaft 3 rises along the guide groove 411 to the highest point, and A3 and A4 contact the edges a and b, respectively, achieving the open state, as shown in Step 10. This process is repeated to achieve the opening and closing effect. Since the change of state is achieved by the rotation of the pivot 3 under the action of spring force, the collision between parts is reduced, thereby reducing the noise. Moreover, the change of the parts is driven by the force during the pressing process, and the change process is linear, which can avoid the noise caused by the instantaneous change between the parts, thus achieving a silent effect.

Claims

1. A silent bouncy core, wherein the bouncy core is disposed in the drain hole of a bathroom drain device and drives a cover to close or open the drain hole, characterized in that: The bouncing core consists of a shell, a screw shaft, a rotating shaft, a guide groove, a spring, and a base. The guide groove fits against the circumferential surface of the screw shaft and has a guide groove along its length. A rotation drive part and a positioning engagement part are arranged in the guide groove. The screw shaft has a circular groove, and the rotating shaft is rotatably installed in the circular groove. A positioning part is provided at the outer end of the rotating shaft and is slidably arranged in the guide groove. The screw shaft is slidably located in the shell. The shaft center has a stepped through hole that is larger at the bottom and smaller at the top. The upper end of the spring is inserted into the through hole at the bottom end of the screw shaft and abuts against the step at the top of the through hole. The lower end of the spring abuts against the base, and the base is connected to the bottom end of the shell. In use, as the screw shaft drives the rotating shaft to move towards the rotation drive part, the rotation drive part touches the positioning part to drive the rotating shaft to rotate, and the positioning engagement part cooperates with the positioning part to restrict the downward movement of the screw shaft.

2. The silent bouncing core according to claim 1, characterized in that: There are two guide grooves, which are symmetrically fitted on the circumferential surface of the screw shaft. The two guide grooves are spaced apart on the circumferential surface of the screw shaft to form an installation groove. The outer shell is placed outside the screw shaft and has a boss on it. The boss slides with the installation groove to achieve a limiting position.

3. The silent bouncing core according to claim 2, characterized in that: There are two rotating shafts, which are symmetrically arranged in the two circular grooves of the screw shaft.

4. The silent bouncing core according to claim 1, characterized in that: The inner end of the rotating shaft has a protruding limiting part, and a limiting countersunk hole is provided in the circular groove. The limiting part is installed in the limiting countersunk hole.

5. The silent bouncing core according to claim 1, characterized in that: The base has a protruding guide post, and the lower end of the spring is sleeved on the guide post.

6. The silent bouncing core according to claim 1, characterized in that: The base has several snap-fit ​​protrusions along its circumference. Correspondingly, the outer shell has several snap holes that engage with the snap-fit ​​protrusions. The snap-fit ​​protrusions and snap holes are aligned one by one and snapped into the snap holes.

7. The silent bouncing core according to claim 1, characterized in that: The top of the screw has an external thread that mates with the cap.

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