Keyboard pressing mechanism

Abstract

The utility model discloses a keyboard hold-down mechanism, relates to the keyboard test related technical field, the keyboard hold-down mechanism comprises a base plate and a hold-down wheel, the upper surface of the base plate is provided with a fixed groove, the hold-down wheel is located above the fixed groove, the keyboard hold-down mechanism also comprises an elastic surface, the elastic surface is arranged between the hold-down wheel and the fixed groove, and the elastic surface is located above the fixed groove. Clamping plates are fixedly arranged at the two ends of the elastic surface; the number of the positioning plates is two, the two positioning plates are arranged on the two sides of the elastic face respectively, and rotating shafts are fixedly arranged at the axes of the two ends of the pressing wheel; the adjusting mechanisms are arranged at the two ends, in the length direction, of the positioning plate, the adjusting mechanisms are fixedly arranged at the two ends of the clamping plate, and the adjusting mechanisms can adjust the height of the positioning plate. According to the utility model, the keyboard can be protected, the keyboard can be prevented from being damaged by the pressing wheel, and the keycap can be prevented from tilting and falling off in the pressing process.

Description

Technical Field

[0001] The utility model relates to the technical field related to keyboard testing, in particular to a keyboard pressing mechanism. Background Art

[0002] During the manufacturing process of the keyboard, the keycaps need to be assembled onto the keyboard. The traditional clamping method is mainly manual operation, and long-term physical exertion will cause workers to be unable to effectively control the clamping force of the keyboard keys, making the clamping of the keyboard keys more affected by human factors, and prone to problems such as improper clamping, affecting the user's purchasing experience.

[0003] In the Chinese patent publication number CN116130279A, a key clamping mechanism for keyboard assembly is proposed. The mechanism pushes the clamping wheel downward to contact the keyboard key through an electric push rod. As the electric push rod continues to extend, the two springs are compressed, so that the two springs push the clamping wheel to ensure that the pressure on the keyboard key is maintained within a specified range, thereby ensuring the effectiveness of keyboard key clamping and reducing adverse interference from human factors.

[0004] However, the clamping wheel of the mechanism will come into direct contact with the keycap, which may easily cause damage to the keycap. When the keycap is seriously loose, the clamping wheel may cause the keycap to tilt up and fall off during the clamping process. Utility Model Content

[0005] The utility model provides a keyboard pressing mechanism, which has the advantages of protecting keycaps and preventing the keycaps from tilting and falling off during the pressing process of a pressing wheel, so as to solve the problems raised in the background technology.

[0006] In order to achieve the purpose of protecting the keycaps and preventing the pressure wheel from causing the keycaps to tilt and fall off during the pressing process, the utility model provides the following technical solutions: a keyboard pressing mechanism, comprising a base plate and a pressure wheel, the upper surface of the base plate being provided with a fixing groove, the pressure wheel being located above the fixing groove, and also comprising: an elastic surface, the elastic surface being arranged between the pressure wheel and the fixing groove, and clamping plates being fixedly arranged at both ends of the elastic surface parallel to the axis direction of the pressure wheel, the elastic surface being used to protect and pre-press the keyboard; a positioning plate, the positioning plate being provided with two groups, and the two groups of positioning plates are respectively arranged on both sides of the elastic surface perpendicular to the axis direction of the pressure wheel, a rotating shaft being fixed at the axis center at both ends of the pressure wheel, the positioning plate being able to position the rotating shaft; an adjusting mechanism, the adjusting mechanism being arranged at both ends of the positioning plate in the length direction, and the adjusting mechanism being fixedly arranged at both ends of the clamping plate, and the adjusting mechanism being able to adjust the height of the positioning plate.

[0007] As a preferred technical solution of the present utility model, the adjustment mechanism includes an adjustment seat, the adjustment seat is fixedly arranged at both ends of the clamping plate, a mounting groove is opened in the adjustment seat, one side of the mounting groove passes through the adjustment seat, an adjustment screw is arranged in the mounting groove along the vertical direction, the upper end of the adjustment screw passes through the upper surface of the adjustment seat and extends to the outside of the adjustment seat, and the adjustment screw is rotatably connected to the adjustment seat; connecting blocks are fixedly arranged at both ends of the positioning plate, the connecting blocks pass through the through end of the mounting groove and are threadedly connected to the adjusting screw, and the side surface of the connecting block contacts the inner wall of the mounting groove.

[0008] As a preferred technical solution of the utility model, a first fixing piece is fixedly provided on the side of the clamping plate away from the elastic surface, a cylinder is provided above the first fixing piece, and a piston rod of the cylinder is fixedly connected to the first fixing piece.

[0009] As a preferred technical solution of the utility model, the upper surface of the base plate is symmetrically fixed with side plates about the fixing groove, the cylinder is fixed on the side plates, a hollow portion is provided on the side plates, and the first fixing member can move up and down in the hollow portion; guide grooves are provided on both side walls of the hollow portion, and guide blocks are fixed at both ends of the first fixing member, and the guide blocks can slide along the guide grooves.

[0010] As a preferred technical solution of the utility model, the height of the positioning plate is greater than the height of the elastic surface, so that when the elastic surface contacts the keyboard, the positioning plate can play a positioning role on the rotating shaft.

[0011] As a preferred technical solution of the utility model, a connecting piece is provided above the pressure wheel, and both ends of the connecting piece are rotatably connected to the rotating shaft, and the connecting part of the connecting piece and the rotating shaft is located between the positioning plate and the pressure wheel, and a telescopic motor is provided above the connecting piece, and the movable rod of the telescopic motor is fixedly connected to the connecting piece; a second fixing piece is fixedly provided on one side of the telescopic motor, a limiting rod is fixedly provided between the side plates, and a threaded rod is rotatably provided between the side plates, the second fixing piece is slidably connected to the limiting rod, and the second fixing piece is threadedly connected to the threaded rod; a driving motor for driving the threaded rod to rotate is also provided on the side plate, and the output end of the driving motor is fixedly connected to the axis center of the threaded rod.

[0012] As a preferred technical solution of the utility model, both ends of the limit rod are fixedly provided with limit blocks, and the limit blocks are rotatably connected to the threaded rod, and the limit blocks are used to limit the moving range of the pressure wheel.

[0013] Compared with the prior art, the utility model provides a keyboard pressing mechanism, which has the following beneficial effects:

[0014] 1. The keyboard clamping mechanism is provided with an elastic surface, and the elastic surface is fixed by a clamping plate and a first fixing member. The first fixing member is moved to drive the elastic surface to move downward until the keyboard is covered, thereby protecting the keyboard and preventing the clamping wheel from damaging the keyboard. The keyboard can also be prevented from being lifted up and falling off during the subsequent clamping process due to being too loose.

[0015] 2. The keyboard clamping mechanism is provided with a positioning plate and an adjusting mechanism, and the height of the positioning plate is adjusted by the adjusting mechanism, so that when the clamping wheel moves downward to clamp the keyboard, the positioning plate can position the rotating shaft, thereby preventing the clamping wheel from pressing down too deep and causing damage to the keyboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a front view schematic diagram of the utility model;

[0018] Figure 3 It is a schematic diagram of the elastic surface of the utility model;

[0019] Figure 4 This is a cross-sectional schematic diagram of the adjustment mechanism of the utility model;

[0020] Figure 5 This is a front view cross-sectional schematic diagram of the adjustment mechanism of the utility model;

[0021] Figure 6 It is an enlarged schematic diagram of area A of the utility model.

[0022] In the figure: 1, bottom plate; 2, fixing groove; 3, clamping wheel; 4, connecting piece; 5, rotating shaft; 6, telescopic motor; 7, side plate; 71, guide groove; 8, threaded rod; 9, limit rod; 10, limit block; 11, driving motor; 12, elastic surface; 13, clamping plate; 14, first fixing piece; 141, guide block; 15, cylinder; 16, adjusting seat; 161, mounting groove; 17, adjusting screw; 171, hand wheel; 18, positioning plate; 181, connecting block; 19, second fixing piece. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1 - Figure 3 The utility model discloses a keyboard clamping mechanism, including a bottom plate 1 and a clamping wheel 3. The bottom plate 1 plays a role of fixing and supporting. The clamping wheel 3 is used to clamp the keyboard. A fixing groove 2 is provided on the upper surface of the bottom plate 1. The fixing groove (2) is used to fix and place the keyboard to be clamped. The clamping wheel 3 is located above the fixing groove 2. The utility model also includes a flexible and elastic elastic surface 12. The material of the elastic surface 12 is preferably a fiber material. The elastic surface 12 is arranged between the clamping wheel 3 and the fixing groove 2. Clamping plates 13 are fixed at both ends of the elastic surface 12 parallel to the axis direction of the clamping wheel 3. The clamping plate 13 The elastic surface 12 can be fixed and kept in a flattened state. Before pressing the keyboard, the elastic surface 12 is driven downward by moving the clamping plate 13 until the keyboard is covered, thereby pre-pressing the keyboard. The pre-pressing here means that the elastic surface 12 uses its own flexibility to deform so as to adapt to the shape of the keyboard, and uses the tension generated by its own elasticity to press the keyboard downward as a whole, thereby protecting the keyboard, preventing the pressing wheel 3 from causing damage to the keyboard, and preventing the keyboard from being too loose and warping and falling off during the subsequent pressing process.

[0025] In addition, in order to achieve the positioning effect of the pressure wheel 3, a positioning plate 18 is further provided. There are two groups of positioning plates 18, and the two groups of positioning plates 18 are respectively arranged on both sides of the elastic surface 12 perpendicular to the axial direction of the pressure wheel 3. A rotating shaft 5 is fixed at the axis center of both ends of the pressure wheel 3. When the pressure wheel 3 moves downward to press the keyboard, the positioning plate 18 can position the rotating shaft 5, thereby preventing the pressure wheel 3 from being pressed down too deep and causing damage to the keyboard.

[0026] Furthermore, in order to adjust the height of the positioning plate 18, an adjustment mechanism is provided at both ends of the positioning plate 18 in the length direction, and the adjustment mechanism is fixed at both ends of the clamping plate 13 and moves together with the clamping plate 13. The positioning plate 18 can reach a set height through the adjustment mechanism, thereby being able to clamp keyboards of different specifications, thereby improving the convenience and applicability of use.

[0027] Combination Figure 4 and Figure 5The adjustment mechanism includes an adjustment seat 16, which is fixed at both ends of the clamping plate 13. The bottom end of the adjustment seat 16 is flush with the clamping plate 13 to facilitate the adjustment range of the adjustment seat 16. A mounting groove 161 is provided in the adjustment seat 16. One side of the mounting groove 161 penetrates the adjustment seat 16. An adjustment screw 17 is provided in the mounting groove 161 along the vertical direction. The upper end of the adjustment screw 17 penetrates the upper surface of the adjustment seat 16 and extends to the outside of the adjustment seat 16. The adjustment screw 17 is rotatably connected to the adjustment seat 16. In order to facilitate adjustment, a hand wheel 171 is fixedly provided on the outer circumference of the adjusting screw 17 located outside the adjusting seat 16 to increase the contact area of ​​the adjusting screw 17; connecting blocks 181 are fixedly provided at both ends of the positioning plate 18, and the connecting block 181 passes through the through end of the mounting groove 161 and is threadedly connected to the adjusting screw 17. The connecting block 181 can move along the adjusting screw 17 in the mounting groove 161, and the side surface of the connecting block 181 contacts the inner wall of the mounting groove 161, thereby preventing the positioning plate 18 from shaking when moving.

[0028] In this embodiment, the adjusting screw 17 can be rotated by turning the hand wheel 171. Since the connecting block 181 is threadedly connected to the adjusting screw 17 and is limited by the mounting groove 161, the connecting block 181 can be moved up or down, thereby achieving the purpose of adjusting the height of the positioning plate 18.

[0029] Combination Figure 1 In order to drive the elastic surface 12 to move, a first fixing part 14 is fixedly provided on the side of the clamping plate 13 away from the elastic surface 12, and a cylinder 15 is provided above the first fixing part 14. The piston rod of the cylinder 15 is fixedly connected to the first fixing part 14. By driving the cylinder 15 to extend and retract, the first fixing part 14 can be driven to move, thereby driving the elastic surface 12 to move up and down.

[0030] Combination Figure 1 , Figure 3 and Figure 6 In order to improve the stability of the elastic surface 12 when it moves, a side plate 7 is fixedly provided on the upper surface of the bottom plate 1 symmetrically with respect to the fixing groove 2, and the cylinder 15 is fixed on the side plate 7. A hollow portion is provided on the side plate 7, and the first fixing member 14 can move up and down in the hollow portion. Guide grooves 71 are provided on both side walls of the hollow portion. At the same time, guide blocks 141 are fixedly provided at both ends of the first fixing member 14. The guide blocks 141 are matched with the guide grooves 71, and the guide blocks 141 can slide along the guide grooves 71, thereby limiting the moving trajectory of the first fixing member 14 and improving the stability of the mechanism during operation.

[0031] Combination Figure 2In order to enable the clamping wheel 3 to perform the clamping function at the appropriate position, the height of the positioning plate 18 is preferably greater than the height of the elastic surface 12, so that when the elastic surface 12 contacts the keyboard, the positioning plate 18 can position the rotating shaft 5, thereby avoiding the situation where the clamping wheel 3 applies excessive pressure on the keyboard.

[0032] Combination Figure 1 , Figure 2 In order to control the movement of the pressing wheel 3, a connecting member 4 is provided above the pressing wheel 3. Both ends of the connecting member 4 are rotatably connected to the rotating shaft 5, and the connecting part of the connecting member 4 and the rotating shaft 5 is located between the positioning plate 18 and the pressing wheel 3, so that the positioning plate 18 limits the movement of the pressing wheel 3. A telescopic motor 6 is provided above the connecting member 4, and the movable rod of the telescopic motor 6 is fixedly connected to the connecting member 4. The telescopic motor 6 can control the vertical movement of the pressing wheel 3.

[0033] In addition, a second fixing member 19 is fixedly provided on one side of the telescopic motor 6, a limiting rod 9 is fixedly provided between the side plates 7, and a threaded rod 8 is rotatably provided between the side plates 7. The second fixing member 19 is slidably connected to the limiting rod 9, and the second fixing member 19 is threadedly connected to the threaded rod 8. A driving motor 11 for driving the threaded rod 8 to rotate is also provided on the side plate 7, and the output end of the driving motor 11 is fixedly connected to the axis of the threaded rod 8, thereby driving the horizontal movement of the clamping wheel 3 through the threaded rod 8.

[0034] Combination Figure 2 In order to control the clamping wheel 3 to move only above the fixed groove 2, limit blocks 10 are fixed at both ends of the limit rod 9, and the limit blocks 10 are rotatably connected to the threaded rod 8, thereby mechanically limiting the moving range of the clamping wheel 3.

[0035] The working principle and use process of the utility model are as follows: when in use, the keyboard is located in the fixed groove 2, and the adjusting screw 17 is first rotated by the hand wheel 171 to adjust the positioning plate 18 to a specified height, and then the elastic surface 12 is pushed to cover the keyboard by the cylinder 15, thereby protecting and pre-pressing the keyboard, and then the clamping wheel 3 is pushed downward by the telescopic motor 6 until the rotating shaft 5 contacts the positioning plate 18, thereby limiting the downward pressing height of the clamping wheel 3, and then the threaded rod 8 is driven to rotate by the driving motor 11, so that the clamping wheel 3 performs a clamping operation on the keyboard under the limit of the positioning plate 18.

[0036] To summarize, the keyboard clamping mechanism, by setting an elastic surface 12, and fixing the elastic surface 12 through a clamping plate 13 and a first fixing member 14, drives the elastic surface 12 to move downward by moving the first fixing member 14 until the keyboard is covered, thereby protecting the keyboard, preventing the clamping wheel 3 from damaging the keyboard, and preventing the keyboard from tilting and falling off during the subsequent clamping process due to being too loose; by setting a positioning plate 18 and an adjusting mechanism, and adjusting the height of the positioning plate 18 through the adjusting mechanism, when the clamping wheel 3 moves downward to clamp the keyboard, the positioning plate 18 can position the rotating shaft 5, thereby preventing the clamping wheel 3 from pressing down too deep and causing damage to the keyboard.

[0037] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A keyboard clamping mechanism, comprising a base plate (1) and a clamping wheel (3), wherein a fixing groove (2) is provided on the upper surface of the base plate (1), and the clamping wheel (3) is located above the fixing groove (2), characterized in that: Also includes: An elastic surface (12), the elastic surface (12) being arranged between the pressure wheel (3) and the fixing groove (2), and clamping plates (13) being fixedly arranged at both ends of the elastic surface (12) parallel to the axis direction of the pressure wheel (3), and the elastic surface (12) is used to protect and pre-press the keyboard; Positioning plates (18), wherein two groups of the positioning plates (18) are provided, and the two groups of the positioning plates (18) are respectively provided on both sides of the elastic surface (12) perpendicular to the axis direction of the pressing wheel (3), and a rotating shaft (5) is fixed at the axis center of both ends of the pressing wheel (3), and the positioning plates (18) can play a positioning role on the rotating shaft (5); The adjusting mechanism is arranged at two ends of the positioning plate (18) in the length direction, and the adjusting mechanism is fixedly arranged at two ends of the clamping plate (13), and the adjusting mechanism can adjust the height of the positioning plate (18).

2. A keyboard pressing mechanism according to claim 1, characterized in that: The adjustment mechanism comprises an adjustment seat (16), the adjustment seat (16) is fixedly arranged at two ends of the clamping plate (13), a mounting groove (161) is provided in the adjustment seat (16), one side of the mounting groove (161) passes through the adjustment seat (16), an adjustment screw (17) is provided in the mounting groove (161) along the vertical direction, the upper end of the adjustment screw (17) passes through the upper surface of the adjustment seat (16) and extends to the outside of the adjustment seat (16), and the adjustment screw (17) is rotatably connected to the adjustment seat (16); Connecting blocks (181) are fixedly provided at both ends of the positioning plate (18), and the connecting blocks (181) pass through the through end of the mounting groove (161) and are threadedly connected to the adjusting screw (17), and the side surface of the connecting block (181) contacts the inner wall of the mounting groove (161).

3. A keyboard pressing mechanism according to claim 1, characterized in that: A first fixing member (14) is fixedly provided on the side of the clamping plate (13) away from the elastic surface (12), a cylinder (15) is provided above the first fixing member (14), and a piston rod of the cylinder (15) is fixedly connected to the first fixing member (14).

4. A keyboard pressing mechanism according to claim 3, characterized in that: A side plate (7) is fixedly mounted on the upper surface of the bottom plate (1) symmetrically with respect to the fixing groove (2), the cylinder (15) is fixed on the side plate (7), a hollow portion is formed on the side plate (7), and the first fixing member (14) can move up and down in the hollow portion; Both side walls of the hollow portion are provided with guide grooves (71), and both ends of the first fixing member (14) are fixed with guide blocks (141), and the guide blocks (141) can slide along the guide grooves (71).

5. A keyboard pressing mechanism according to claim 1, characterized in that: The height of the positioning plate (18) is greater than the height of the elastic surface (12), so that when the elastic surface (12) contacts the keyboard, the positioning plate (18) can play a positioning role on the rotating shaft (5).

6. A keyboard pressing mechanism according to claim 4, characterized in that: A connecting member (4) is provided above the pressure wheel (3), and both ends of the connecting member (4) are rotatably connected to the rotating shaft (5), and the connecting portion between the connecting member (4) and the rotating shaft (5) is located between the positioning plate (18) and the pressure wheel (3). A telescopic motor (6) is provided above the connecting member (4), and the movable rod of the telescopic motor (6) is fixedly connected to the connecting member (4); A second fixing member (19) is fixedly provided on one side of the telescopic motor (6), a limiting rod (9) is fixedly provided between the side plates (7), and a threaded rod (8) is rotatably provided between the side plates (7), the second fixing member (19) is slidably connected to the limiting rod (9), and the second fixing member (19) is threadedly connected to the threaded rod (8); The side plate (7) is also provided with a driving motor (11) for driving the threaded rod (8) to rotate, and the output end of the driving motor (11) is fixedly connected to the axis of the threaded rod (8).

7. A keyboard pressing mechanism according to claim 6, characterized in that: Both ends of the limiting rod (9) are fixedly provided with limiting blocks (10), and the limiting blocks (10) are rotatably connected to the threaded rod (8), and the limiting blocks (10) are used to limit the movement range of the clamping wheel (3).

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