Key cover slow descending device

Abstract

The utility model relates to a key cover slow descending device which comprises a slow descending side cover, a sliding groove guide edge, a damping piece and a buffering coil spring, the sliding groove guide edge is arranged on the upper side of the slow descending side cover, a sliding groove is formed in the side, close to a key cover, of the sliding groove guide edge, one end of the sliding groove is bent and extends downwards, a notch is formed in the bent and extending end, and the damping piece is arranged in the notch. A damping part is rotationally installed at one end of the slow descending side cover, a damping protrusion is arranged at one end of the damping part and extends out of the notch, a buffering coil spring is connected to the damping part in a sleeved mode, one end of the buffering coil spring is connected with the damping part in a clamped mode, and the other end of the buffering coil spring is connected with the slow descending side cover in a clamped mode. A pin column is installed in the sliding groove. The utility model has the characteristics of protecting the key cover, preventing operators from being injured, reducing the impact of the key cover, ensuring the service life of the key cover and the like.

Description

Technical Field

[0001] This utility model relates to the field of piano accessories technology, and in particular to a key cover slow-closing device. Background Technology

[0002] Many digital pianos in the industry use a pull-out key cover. Its structural feature is that there are pins on both sides of the front of the key cover and grooves on the inner side of the left and right side arms that match the pins. The grooves and pins are used to guide the key cover so that it can move smoothly. This structure lacks resistance when sliding up and down, which can easily lead to injury to the operator and damage to the key cover. In order to solve the above technical problems, this part needs to be improved. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a key cover slow-down device, which has the characteristics of protecting the key cover, avoiding injury to the operator, reducing the impact on the key cover, and ensuring the service life of the key cover.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a key cover slow-closing device is provided, including a slow-closing side cover, a sliding guide edge, a damping element, and a buffer coil spring. The upper side of the slow-closing side cover is provided with a sliding guide edge, and a sliding groove is provided on the side of the sliding guide edge near the key cover. One end of the sliding groove bends downward and extends, and a notch is provided on the bent and extended end. A damping element is rotatably installed on one end of the slow-closing side cover. A damping protrusion is provided on one end of the damping element and extends out from the notch. A buffer coil spring is sleeved on the damping element. One end of the buffer coil spring is engaged with the damping element, and the other end is engaged with the slow-closing side cover. A pin is installed in the sliding groove.

[0005] In this technical solution, a damping component is installed to form a blocking component that supports the pin. A groove is set to guide the movement of the pin. A notch is set to facilitate the extension of the damping protrusion. The damping protrusion is set to facilitate contact with the pin. A buffer coil spring is set to facilitate the absorption of the impact force when the damping component and the pin collide. The buffer coil spring can also be used to reset the damping component.

[0006] As a supplement to this technical solution, the slow-closing side cover is provided with several screw docking seats, which are used to facilitate the fixed connection between the slow-closing side cover and the side of the keyboard base.

[0007] As a supplement to this technical solution, a pin sleeve is fitted onto the pin. By setting the pin sleeve, the pin sleeve can roll during operation, which can protect the pin and prevent the pin from scratching the side wall of the groove.

[0008] As a supplement to this technical solution, the damping protrusion is provided with a snap-fit ​​protrusion corresponding to one end of the buffer coil spring. By providing the snap-fit ​​protrusion, the installation of the buffer coil spring is facilitated.

[0009] As a supplement to this technical solution, the slow-descent side cover is provided with a docking protrusion, and a grease collection center groove is provided in the middle of the docking protrusion. The damping component is provided with a plug-in protrusion that matches the grease collection center groove.

[0010] In this technical solution, a grease collection center groove is set to fill the damping grease, and a plug-in protrusion is set to facilitate the increase of the damping force between the plug protrusion and the damping component. When the pin and the damping protrusion come into contact, the buffer coil spring will absorb the buffering force. At the same time, the damping grease is a non-Newtonian fluid. When it is impacted, the damping grease can provide supplementary support for the damping component. When the impact force disappears, the supporting force of the damping grease will disappear. Under the weight of the key cover, the key cover will slowly descend, and the damping component will also slowly rotate.

[0011] As a supplement to this technical solution, a grease auxiliary groove is provided on the outer side of the docking protrusion and the grease collection center groove, and a plug-in extension is provided on the outer side of the plug-in protrusion for inserting into the grease auxiliary groove. The grease auxiliary groove and the plug-in extension are used to supplement the damping force.

[0012] As a supplement to this technical solution, the slow-closing side cover has two pieces installed on both sides of the key cover, and the pin is installed on both sides of the front end of the key cover. The slow-closing side cover has two plug ears at the lower part of the side near the key cover. The root of the plug ears is provided with an upwardly extending vertical rib. The plug ears are provided to facilitate docking with the control box, and the vertical rib is provided to facilitate the insertion of the control box, prevent the control box from becoming loose, and avoid noise during playing.

[0013] As a supplement to this technical solution, a guide wall is provided on the lower side of the slide, and the pin is always abutting against the guide wall. The guide wall is used to support the pin and improve the overall service life of the device.

[0014] Beneficial effects: This utility model relates to a key cover slow-closing device, which has the following advantages:

[0015] (1) The key cover will automatically and slowly slide to the closed position after being closed to a certain extent, without manual intervention, which improves the user experience and increases the product’s premium feel.

[0016] (2) When the key cover closes and slides to the corner of the slide, there is a damping component that applies resistance to the key cover, so that the key cover falls slowly, which improves the user experience and also avoids accidental injury to personnel and extends the life of the key cover. Attached Figure Description

[0017] Figure 1 This is a structural view of the present invention in use;

[0018] Figure 2 This is a structural view of the guide wall described in this utility model;

[0019] Figure 3 This is the front view of this utility model;

[0020] Figure 4 This is a structural view of the docking protrusion described in this utility model;

[0021] Figure 5 This is a structural view of the plug ear described in this utility model;

[0022] Figure 6 This is a structural view of the insertion protrusion of the present invention;

[0023] Figure 7 This is a structural view of the damping component described in this utility model.

[0024] Illustration: 1. Slow-descent side cover, 2. Slide guide edge, 3. Damping component, 4. Pin, 5. Screw mating seat, 6. Buffer coil spring, 7. Key cover, 8. Grease collection center groove, 9. Grease auxiliary groove, 10. Butt joint protrusion, 11. Insertion protrusion, 12. Insertion extension edge, 13. Damping protrusion, 14. Snap-fit ​​protrusion, 15. Vertical rib, 16. Slide groove, 17. Notch, 18. Insertion ear, 19. Guide wall. Detailed Implementation

[0025] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0026] The embodiments of this utility model relate to a key cover slow-closing device, such as... Figure 1As shown in Figure 3, the device includes a slow-closing side cover 1, a sliding guide edge 2, a damping element 3, and a buffer coil spring 6. The upper side of the slow-closing side cover 1 is provided with a sliding guide edge 2. A sliding groove 16 is provided on the side of the sliding guide edge 2 near the key cover. One end of the sliding groove 16 bends downward and extends, and a notch 17 is provided on the bent extension end. A damping element 3 is rotatably mounted on one end of the slow-closing side cover 1. A damping protrusion 13 is provided on one end of the damping element 3 and extends out from the notch 17. A buffer coil spring 6 is sleeved on the damping element 3. One end of the buffer coil spring 6 is engaged with the damping element 3, and the other end is engaged with the slow-closing side cover 1. A pin 4 is installed in the sliding groove 16.

[0027] In this technical solution, a damping component 3 is installed to form a blocking component that supports the pin 4. A sliding groove 16 is provided to guide the movement of the pin 4. A notch 17 is provided to facilitate the extension of the damping protrusion 13. The damping protrusion 13 is provided to facilitate contact with the pin 4. A buffer coil spring 6 is provided to facilitate the absorption of the impact force when the damping component 3 and the pin 4 collide.

[0028] As a supplement to this technical solution, the slow-closing side cover 1 is provided with a number of screw docking seats 5, which are used to facilitate the fixed docking of the slow-closing side cover 1 and the side of the keyboard base.

[0029] As a supplement to this technical solution, a pin sleeve is fitted onto the pin 4. By setting the pin sleeve, the pin sleeve can roll during operation, which can protect the pin 4 and prevent the pin 4 from scratching the side wall of the slide groove 16.

[0030] like Figure 7 As shown, as a supplement to this technical solution, the damping protrusion 13 is provided with a snap-fit ​​protrusion 14 corresponding to one end of the buffer coil spring 6. By providing the snap-fit ​​protrusion 14, the installation of the buffer coil spring 6 is facilitated.

[0031] like Figure 4 — Figure 6 As shown, as a supplement to this technical solution, the slow-descent side cover 1 is provided with a docking protrusion 10, and a grease collection center groove 8 is provided in the middle of the docking protrusion 10. The damping member 3 is provided with a plug-in protrusion 11 that matches the grease collection center groove 8.

[0032] In this technical solution, a grease collection center groove 8 is set to fill the damping grease, and a plug-in protrusion 11 is set to facilitate the increase of the damping force between the docking protrusion 10 and the damping element 3. When the pin 4 and the damping protrusion 13 come into contact, the buffer coil spring 6 will absorb the buffering force. At the same time, the damping grease is a non-Newtonian fluid. When it is impacted, the damping grease can provide supplementary support for the damping element 3. When the impact force disappears, the supporting force of the damping grease will disappear. Under the weight of the key cover 7, the key cover 7 will slowly descend, and the damping element 3 will also slowly rotate.

[0033] As a supplement to this technical solution, a grease auxiliary groove 9 is provided on the outer side of the docking protrusion 10 and the grease collection center groove 8, and a plug-in extension 12 is provided on the outer side of the plug-in protrusion 11 to insert into the grease auxiliary groove 9. The grease auxiliary groove 9 and the plug-in extension 12 are provided to supplement the damping force.

[0034] like Figure 5 As shown, as a supplement to this technical solution, the slow-closing side cover 1 has two pieces installed on both sides of the key cover 7, and the pin 4 is installed on both sides of the front end of the key cover 7. The slow-closing side cover 1 is provided with two plug ears 18 on the lower part of the side near the key cover 7. The root of the plug ears 18 is provided with an upwardly extending vertical rib 15. The plug ears 18 are provided to facilitate docking with the control box, and the vertical rib 15 is provided to facilitate the insertion of the control box, prevent the control box from becoming loose, and prevent noise during playing.

[0035] like Figure 2 As shown, as a supplement to this technical solution, a guide wall 19 is provided on the lower side of the slide groove 16, and the pin 4 always abuts against the guide wall 19. The guide wall 19 is used to support the pin 4, thereby improving the overall service life of the device.

[0036] Example

[0037] The device of this technical solution is installed inside both sides of the keyboard base. When the key cover 7 is closed, pins 4 are installed on both sides of the front end of the key cover 7. The pins 4 move along the slide groove 16 and contact the damping protrusion 13. The damping protrusion 13 drives the damping element 3 to rotate around the docking protrusion 10. The buffer coil spring 6 deforms and absorbs the impact force generated by the key cover 7. After the impact force disappears, a grease collection center groove 8, a grease auxiliary groove 9, a plugging protrusion 11, and a plugging extension 12 are provided between the docking protrusion 10 and the damping element 3. The grease collection center groove 8, the grease auxiliary groove 9, the plugging protrusion 11, and the plugging extension 12 are filled with damping grease. The damping grease will generate a resisting force, so that the key cover 7 can descend slowly, avoiding the impact between the key cover 7 and the keyboard base, thereby avoiding damage to the key cover 7 and improving the service life of the key cover 7.

[0038] A pin sleeve is installed on the pin 4. The pin sleeve can rotate, which ensures that the key cover 7 runs smoothly when the pin sleeve is running, and also prevents the pin 4 from scratching the side wall of the slide groove 16.

Claims

1. A key cover slow descent device characterized by: The device comprises a slow descent side cover (1), a sliding groove guide edge (2), a damping member (3) and a buffer coil spring (6), the upper side of the slow descent side cover (1) is provided with the sliding groove guide edge (2), the sliding groove guide edge (2) is provided with a sliding groove (16) near the side of the key cover, one end of the sliding groove (16) is bent downward, a notch (17) is arranged on the bent end, the damping member (3) is rotatably installed on one end of the slow descent side cover (1), a damping protrusion (13) is arranged on one end of the damping member (3), the damping protrusion (13) extends from the notch (17), the damping member (3) is sleeved with the buffer coil spring (6), one end of the buffer coil spring (6) is clamped with the damping member (3), the other end is clamped with the slow descent side cover (1), the sliding groove (16) is provided with a pin column (4).

2. The key cover slow descent device according to claim 1, wherein the slow descent side cover (1) is provided with a plurality of screw butt joints (5).

3. The key cover slow descent device according to claim 1, wherein the pin column (4) is sleeved with a pin column sleeve.

4. The key cover slow descent device according to claim 1, wherein the damping protrusion (13) is provided with a clamping protrusion (14) corresponding to one end of the buffer coil spring (6).

5. The key cover slow descent device according to claim 1, wherein the slow descent side cover (1) is provided with a butt joint protruding column (10), the middle part of the butt joint protruding column (10) is provided with a grease storage center groove (8), the damping member (3) is provided with an insertion protruding column (11) matched with the grease storage center groove (8).

6. The key cover slow descent device according to claim 5, wherein the outer side of the butt joint protruding column (10) and the grease storage center groove (8) is provided with a circle of grease auxiliary grooves (9), the outer side of the insertion protruding column (11) is provided with a circle of insertion grease auxiliary groove (9) insertion edges (12).

7. The key cover slow descent device according to claim 1, wherein the slow descent side cover (1) is provided with two slow descent side covers (1) installed on both sides of the key cover (7), the pin column (4) is installed on both sides of the front end of the key cover (7), the slow descent side cover (1) is provided with two insertion ears (18) near the lower part of the side of the key cover (7), the root part of the insertion ear (18) is provided with an upward extending vertical protruding rib (15).

8. The key cover slow descent device according to claim 1, wherein the lower side of the sliding groove (16) is provided with a guide wall (19), the pin column (4) always abuts against the guide wall (19).

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