Key assembly and electrical equipment

Abstract

The utility model discloses a button assembly and electrical equipment, and relates to the technical field of control electrical apparatus elements, the button assembly comprises a button body, a member to be adjusted, a connecting bearing and a support member; the key body is connected to an adjusting shaft of a to-be-adjusted piece, and a fixing part of the to-be-adjusted piece is connected to the fixing piece; the key body is used for driving the adjusting shaft to move along the axis direction of the adjusting shaft and driving the adjusting shaft to rotate around the axis direction of the adjusting shaft under the action of external force; the inner ring of the connecting bearing is connected with the key body; the supporting piece is connected to the outer ring of the connecting bearing. The supporting piece is used for being in abutting fit with the fixing piece so as to prevent the adjusting shaft from moving in the axis direction of the adjusting shaft. The key assembly can solve the technical problem that the application of equipment is limited due to the fact that existing control electric appliance elements can only be operated on a single degree of freedom, the applicability is poor, and diversified control requirements of the equipment cannot be met.

Description

Technical Field

[0001] The utility model relates to the technical field of controlling electrical components, in particular to a key assembly and electrical equipment. Background Art

[0002] Various electronic devices and electrical equipment are usually equipped with control electrical components, through which users can input signals to the equipment to trigger the equipment to perform operations such as opening, closing, running, and stopping. Buttons and knobs are both commonly used control electrical components, where buttons can connect or disconnect corresponding control circuits when pressed by users, and knobs can selectively connect corresponding control circuits or linearly adjust parameters such as resistance values ​​when turned by users, thereby achieving control over the transmission of electrical signals.

[0003] As the functions of electronic and electrical equipment become increasingly diverse, there are more and more commands available for users to choose from on the equipment, which puts higher requirements on control electrical components, and requires the use of limited control electrical components on the equipment to complete more different signal triggering operations. However, existing control electrical components such as buttons and knobs can only be operated in a single degree of freedom, that is, they can only be pressed or twisted, and have poor applicability and cannot meet the diverse control needs of the equipment, thus limiting the application of the equipment. Utility Model Content

[0004] The purpose of the utility model is to provide a button assembly, aiming to solve the technical problem that existing control electrical components can only be operated on a single degree of freedom, have poor applicability, cannot meet the diversified control needs of the equipment, and lead to limited application of the equipment.

[0005] In order to achieve the purpose, the utility model adopts the following technical solutions:

[0006] A key assembly, the key assembly comprising:

[0007] A part to be adjusted, the part to be adjusted comprising an adjusting shaft and a fixing part;

[0008] a fixing member, the fixing portion being connected to the fixing member;

[0009] The button body is connected to the adjustment shaft of the to-be-adjusted part, and the fixing part of the to-be-adjusted part is connected to the fixing part; the button body is used to drive the adjustment shaft to move along the axis direction of the adjustment shaft and drive the adjustment shaft to rotate around the axis of the adjustment shaft under the action of external force;

[0010] A connecting bearing, the inner ring of which is connected to the key body;

[0011] A support member is connected to the outer ring of the connecting bearing; the support member is used to abut and cooperate with the fixing member.

[0012] Furthermore, the button assembly includes a connecting seat; the connecting seat is connected to the adjusting shaft, and the button body is connected to the connecting seat;

[0013] The button body has a first snap-on portion, and the connecting seat has a second snap-on portion. The first snap-on portion and / or the second snap-on portion are inserted into the inner ring of the connecting bearing. The first snap-on portion abuts against one side end face of the inner ring of the connecting bearing, and the second snap-on portion abuts against the other side end face of the inner ring of the connecting bearing.

[0014] Furthermore, the connecting seat is provided with a connecting cavity, and the connecting cavity is sleeved on the adjusting shaft.

[0015] Furthermore, the button body is provided with a positioning cavity, the connecting seat is provided with a positioning boss, and the positioning boss is inserted into the positioning cavity.

[0016] Further, the connecting cavity is arranged on a side of the connecting seat facing the adjusting shaft, and the positioning boss is arranged on a side of the connecting seat facing away from the adjusting shaft;

[0017] In the axial direction of the adjusting shaft, the projection contour of the positioning boss covers the projection contour of the connecting cavity.

[0018] Furthermore, the button body includes a top shell and a connecting column; the first end of the connecting column is integrally formed on the top shell, and the first buckle portion is arranged on the second end of the connecting column;

[0019] A connecting hole is formed at the second end of the connecting column, and the connecting hole has a threaded section and a light hole section, the threaded section and the light hole section are arranged in sequence in a direction away from the connecting seat, the connecting seat is locked to the threaded section by a threaded fastener, and the light hole section extends to the top shell.

[0020] Furthermore, the support member is provided with a limiting protrusion; the limiting protrusion is used to abut against the fixing member to prevent the button body from approaching the fixing member along the axial direction of the adjusting shaft.

[0021] Furthermore, an elastic body is provided on the fixing member, and the limiting protrusion is used to squeeze the elastic body, and the limiting protrusion is used to move away from the fixing member along the axial direction of the adjusting shaft under the elastic force of the elastic body.

[0022] Furthermore, the support member is provided with a limiting buckle, and the fixing member is provided with a limiting flange; the limiting buckle is used to buckle on the limiting flange to prevent the button body from moving away from the fixing member along the axial direction of the adjusting shaft.

[0023] Further, the support member is provided with a connecting boss, the connecting boss has a connecting ring and a transverse flange, the connecting ring extends along the axial direction of the connecting bearing, and the transverse flange is arranged on the inner ring surface of the connecting ring;

[0024] The inner ring surface of the connecting ring is interference-fitted with the outer ring of the connecting bearing, and the transverse flange abuts against at least one side end surface of the outer ring of the connecting bearing.

[0025] Correspondingly, the utility model also provides an electrical device, which includes the button assembly as mentioned above.

[0026] Compared with the prior art, the beneficial effects of the utility model are:

[0027] In the key assembly proposed by the utility model, the key body and the support are connected by a connecting bearing. The user can drive the adjusting shaft of the to-be-adjusted part to move axially relative to the fixed part by pressing or pulling the key body, so that the signal input can be realized by the axial movement of the adjusting shaft. The user can also drive the adjusting shaft of the to-be-adjusted part to rotate relative to the fixed part by twisting the key body, so that the signal input can be realized by the rotation of the adjusting shaft. In the process of axial movement of the adjusting shaft, the support can limit the moving stroke of the key body by abutting with the fixing part, so as to avoid the corresponding device damage caused by the movement of the key body exceeding the preset range. When the support and the fixing part are already in the abutting state, the key body can still drive the adjusting shaft to rotate based on the relative rotation of the inner ring and the outer ring of the connecting bearing, that is, the operation of pressing or pulling the key body and the operation of twisting the key body do not interfere with each other. Based on the above arrangement, the freedom of movement of the key body is increased, the applicability of the key body is improved, so that the key body can drive the adjusting shaft of the to-be-adjusted part to realize signal input by axial movement and rotation, so as to better meet the diversified control requirements of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0029] Figure 1 This is a schematic diagram of the exploded structure of an embodiment of a key assembly of the utility model;

[0030] Figure 2 This is a schematic cross-sectional structure diagram of an embodiment of a key assembly of the utility model;

[0031] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0032] Figure 4 for Figure 2 A magnified schematic diagram of point B in the middle.

[0033] Description of Figure Numbers:

[0034]

[0035] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0036] 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 of 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.

[0037] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0038] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0039] The utility model embodiment provides a key assembly, see Figure 1 and Figure 2 The key assembly includes a key body 1, a to-be-adjusted part 2, a fixing part 3, a connecting bearing 4 and a supporting part 5;

[0040] The adjustable part 2 includes an adjusting shaft 21 and a fixing part 22, the button body 1 is connected to the adjusting shaft 21 of the adjustable part 2, and the fixing part 22 of the adjustable part 2 is connected to the fixing part 3; the button body 1 is used to drive the adjusting shaft 21 to move along the axial direction of the adjusting shaft 21 and drive the adjusting shaft 21 to rotate around the axis of the adjusting shaft 21 under the action of external force.

[0041] The inner ring of the connecting bearing 4 is connected to the key body 1 .

[0042] The support member 5 is connected to the outer ring of the connecting bearing 4 ; the support member 5 is used for abutting and cooperating with the fixing member 3 .

[0043] In this embodiment, the adjustable part 2 includes but is not limited to signal conversion devices such as encoders on electronic equipment or electrical equipment; taking the adjustable part 2 as an example, the fixed part 22 is the main part of the encoder, the adjustment shaft 21 is the input shaft of the encoder, and the adjustment shaft 21 can move along the axis direction of the adjustment shaft 21 and drive the adjustment shaft 21 to rotate around the axis of the adjustment shaft 21. The fixed part 3 may include a main board 31 of the device and a shell 32 for fixing the main board 31. The fixed part 22 of the adjustable part 2 may be fixed to the main board 31 by welding or the like. The key body 1 may be fixed to the adjustment shaft 21 of the adjustable part 2 by locking, interference fit, snap connection, pin connection, bonding or the like.

[0044] A rotating structure such as a ball or needle is provided between the inner ring and the outer ring of the connecting bearing 4, and the inner ring and the outer ring can realize relative rotation through the rotating structure, and the friction during the rotation process can be reduced through the rotating structure; the rotation axis of the connecting bearing 4 is coaxially arranged with the rotation axis of the adjusting shaft 21. A shaft structure can be provided on the key body 1, and the shaft structure can be inserted into the inner ring of the connecting bearing 4 and have an interference fit with the inner ring, so that the key body 1 can rotate with the inner ring. A through hole structure or a concave cavity structure can be provided on the support 5, wherein the cross-sectional profile of the hole body part in the through hole structure should be adapted to the outer ring profile of the connecting bearing 4, and the cross-sectional profile of the cavity part in the concave cavity structure should also be adapted to the outer ring profile of the connecting bearing 4, so that the outer ring of the connecting bearing 4 can achieve an interference fit with the hole body part of the through hole structure or the cavity part of the concave cavity structure through a hole-shaft fit. Based on the above structural setting, the relative rotation between the inner ring and the outer ring of the connecting bearing 4 can ensure that the rotation of the key body 1 is not affected by the support member 5; even if the support member 5 abuts against other structural members and cannot rotate, the key body 1 can still rotate around the axis.

[0045] Diagrammatically, the key body 1 is located above the support member 5, and a reserved gap 10 can be set between the key body 1 and the support member 5 to ensure that the key body 1 can rotate relative to the support member 5 without friction and scratching with the support member 5; the support member 5 can be provided with connecting structures such as ribs and buckles. When the support member 5 moves up and down relative to the fixing member 3 to a preset position along the axial direction of the adjusting shaft 21 to a preset position, the connecting structure is used to abut and cooperate with the fixing member 3 to prevent the support member 5 from continuing to move, thereby preventing the connecting bearing 4 and the key body 1 from continuing to move, and playing a limiting role on the key body 1; more specifically, the fixing member 3 includes a main board 31 of the device and a shell 32 for fixing the main board 31, and the fixing portion 22 of the adjustable member 2 is connected to the main board 31. When the support member 5 moves to a preset position in a direction close to or away from the main board 31, the connecting structure on the support member 5 abuts and cooperates with the shell 32, thereby preventing the support member 5 from continuing to approach or move away from the main board 31, thereby preventing the connecting bearing 4 and the key body 1 from continuing to move, and playing a limiting role on the key body 1. As described above, by utilizing the relative rotation between the inner ring and the outer ring of the connecting bearing 4, when the connecting structure on the supporting member 5 abuts against the housing 32 and the supporting member 5 cannot rotate, the key body 1 can still rotate around the axis.

[0046] In actual operation, the user can drive the adjustment shaft 21 of the adjustable member 2 to move along the axis direction of the adjustment shaft 21 by pressing or pulling the key body 1, so that the signal input can be realized by the axial movement of the adjustment shaft 21; the user can also drive the adjustment shaft 21 of the adjustable member 2 to rotate around the axis of the adjustment shaft 21 by twisting the key body 1, so that the signal input can be realized by the rotation of the adjustment shaft 21. In the process of the user pressing or pulling the key body 1, the connecting bearing 4 and the supporting member 5 will move synchronously with the key body 1; when the key body 1 moves to a preset position, for example, when the user presses the key body 1 to move a certain distance, the supporting member 5 can abut against the fixing member 3 to prevent the key body 1 from continuing to move along the pressing direction; similarly, when the user pulls the key body 1 to move a certain distance, the supporting member 5 can abut against the fixing member 3 to prevent the key body 1 from continuing to move along the pulling direction; this can play a role in limiting the movement stroke of the key body 1, and avoid the corresponding device damage caused by the movement of the key body 1 exceeding the preset range. Since the inner ring of the connecting bearing 4 can rotate relative to the outer ring, the key body 1 can also rotate relative to the supporting member 5 with the help of the connecting bearing 4. In this way, when the supporting member 5 and the fixing member 3 are already in abutment and mating state, that is, when the supporting member 5 cannot rotate, the key body 1 can still drive the adjusting shaft 21 of the adjustable member 2 to rotate under the user's twisting action.

[0047] Based on the above arrangement, the user can rotate the button body 1 while pressing or pulling the button body 1, and the pressing or pulling operation and the rotating operation do not interfere with each other. This increases the freedom of movement of the button body 1 and improves the applicability of the button body 1. The adjustment shaft 21 of the adjustable part 2 can be driven by the button body 1 to move axially or rotate around the axial direction, so as to realize signal input with the help of the axial movement and rotation of the adjustment shaft 21, thereby meeting the diversified control needs of the equipment.

[0048] Optionally, refer to Figure 1 and Figure 2 The key assembly includes a connecting seat 6 ; the connecting seat 6 is connected to the adjusting shaft 21 , and the key body 1 is connected to the connecting seat 6 .

[0049] The button body 1 has a first buckle portion 121, and the connecting seat 6 has a second buckle portion 61, wherein the first buckle portion 121 is interference-fitted with the inner ring of the connecting bearing 4 through a hole-shaft matching method, or the second buckle portion 61 is interference-fitted with the inner ring of the connecting bearing 4 through a hole-shaft matching method, or the first buckle portion 121 and the second buckle portion 61 are as follows Figure 2 As shown, it is interference fit with the inner ring of the connecting bearing 4 through the hole-shaft matching method; in addition, the first buckle part 121 abuts against one side end face of the inner ring of the connecting bearing 4, and the second buckle part 61 abuts against the other side end face of the inner ring of the connecting bearing 4.

[0050] Specifically, the first buckle portion 121 can be configured as follows: Figure 2 The stepped structure shown in the figure has a first layer segment with a smaller width or a smaller diameter in the stepped structure that can be plugged and fitted into the inner ring of the connecting bearing 4 from top to bottom, and a second layer segment with a larger width or a larger diameter in the stepped structure has a lower end face that can abut against the upper end face of the inner ring of the connecting bearing 4. It can be understood that the above-mentioned first layer segment can be set as an axial structure that is compatible with the inner ring of the connecting bearing 4, and the above-mentioned second layer segment can be set as an axial structure with a diameter larger than that of the first layer segment or a flange structure extending outward along the cylindrical surface of the first layer segment, which is not limited here.

[0051] Similarly, the second buckle portion 61 can be configured as follows: Figure 2 The stepped structure shown in the figure has a third layer segment with a smaller width or a smaller diameter in the stepped structure that can be plugged and fitted into the inner ring of the connecting bearing 4 from bottom to top, and the upper end face of the fourth layer segment with a larger width or a larger diameter in the stepped structure can abut against the lower end face of the inner ring of the connecting bearing 4; it can be understood that the above-mentioned third layer segment can be set as an axial structure adapted to the inner ring of the connecting bearing 4, and the above-mentioned fourth layer segment can be set as an axial structure with a diameter larger than that of the third layer segment or a flange structure extending outward along the cylindrical surface of the third layer segment, which is not limited here.

[0052] By matching the connecting seat 6 with the key body 1, the hole-shaft matching between the key body 1 and the connecting bearing 4 can be achieved, and the axial limitation of the connecting bearing 4 can be conveniently achieved by utilizing the matching between the first buckle part 121, the second buckle part 61 and the inner ring of the connecting bearing 4.

[0053] Optionally, refer to Figure 1 and Figure 2 The button body 1 includes a top shell 11 and a connecting column 12 ; a first end of the connecting column 12 is connected to the top shell 11 , and a first buckle portion 121 is disposed at a second end of the connecting column 12 .

[0054] A connecting hole 122 is formed at the second end of the connecting column 12. The connecting hole 122 has a threaded section 1221 and a light hole section 1222. The threaded section 1221 and the light hole section 1222 are arranged in sequence in a direction away from the connecting seat 6. The connecting seat 6 is locked to the threaded section 1221 by a threaded fastener 9, and the light hole section 1222 extends to the top shell 11.

[0055] Specifically, the top shell 11 is a thin-walled structure and can be configured as follows: Figure 2 The middle portion shown is convexly domed, and the connecting column 12 can be integrally formed with the middle portion of the top shell 11 by injection molding or the like; in this way, the top shell 11 with a larger coverage area can be convenient for users to press, pull or twist, and the annular space formed between the lower side of the top shell 11 and the connecting column 12 can be used to accommodate the installation of the LED circuit board 7 and other electronic components; further, the support member 5 can be arranged to cover the annular space, so that a relatively closed accommodating chamber can be enclosed and formed by the cooperation of the support member 5 and the top shell 11, thereby providing better protection for the electronic components such as the LED circuit board 7 installed in the accommodating chamber.

[0056] like Figure 2 As shown, the lower end of the connecting column 12 abuts against the upper end face of the connecting bearing 4 from top to bottom, and the connecting seat 6 abuts against the lower end face of the connecting bearing 4 from bottom to top. A threaded fastener 9 such as a bolt can be used to pass through the connecting seat 6 from bottom to top and screwed onto the threaded section 1221 of the connecting hole 122 at the lower end of the connecting column 12. Then, by screwing the threaded fastener 9, the screw head part of the threaded fastener 9 can be used to push the connecting seat 6 to move in the direction close to the connecting column 12. Finally, the inner ring of the connecting bearing 4 can be clamped by the first buckle portion 121 and the second buckle portion 61, thereby realizing the connection and fixation between the key body 1, the connecting bearing 4 and the connecting seat 6.

[0057] It is understandable that the light hole section 1222 of the connecting hole 122 needs to extend to the top shell 11 so that the distance between the top of the connecting hole 122 and the upper side of the top shell 11 is closer to the wall thickness of the top shell 11. This can improve the uniformity of the overall thickness of the key body 1, avoid shrinkage of the key body 1 during the molding process due to some areas being too thick and some areas being too thin, and improve the molding accuracy of the key body 1.

[0058] Optionally, refer to Figure 1 and Figure 2 The connection seat 6 is provided with a connection cavity 62, and the connection cavity 62 is sleeved on the adjustment shaft 21. By providing the connection cavity 62, the connection seat 6 and the adjustment shaft 21 can be quickly positioned during the assembly process, thereby improving the connection accuracy of the connection seat 6 and the adjustment shaft 21.

[0059] Optionally, refer to Figure 1 and Figure 2 The key body 1 is provided with a positioning cavity 13, and the connection seat 6 is provided with a positioning boss 63, and the positioning boss 63 is inserted into the positioning cavity 13. By providing the positioning cavity 13 and the positioning boss 63, the key body 1 and the connection seat 6 can be quickly positioned during the assembly process, thereby improving the connection accuracy of the key body 1 and the connection seat 6.

[0060] Optionally, refer to Figure 1 and Figure 2 The connecting cavity 62 is arranged on the side of the connecting seat 6 facing the adjusting shaft 21 , and the positioning boss 63 is arranged on the side of the connecting seat 6 facing away from the adjusting shaft 21 .

[0061] In the axial direction of the adjustment shaft 21 , the projection contour of the positioning boss 63 covers the projection contour of the connecting cavity 62 .

[0062] Specifically, the connecting cavity 62 can be arranged on the side of the connecting seat 6 facing the adjusting shaft 21, and the positioning boss 63 can be arranged on the side of the connecting seat 6 facing away from the adjusting shaft 21, and the positioning boss 63 is opposite to the connecting cavity 62. In this way, the thickness of the positioning boss 63 can be used to compensate for the thickness of the connecting seat 6 reduced due to the setting of the connecting cavity 62, thereby improving the uniformity of the overall thickness of the connecting seat 6, avoiding shrinkage of the connecting seat 6 during the molding process due to some areas being too thick and some areas being too thin, and improving the molding accuracy of the connecting seat 6.

[0063] Optionally, refer to Figure 1 and Figure 2 The support member 5 is provided with a limiting protrusion 51 ; the limiting protrusion 51 is used to abut against the fixing member 3 to prevent the button body 1 from approaching the fixing member 3 along the axial direction of the adjustment shaft 21 .

[0064] Illustratively, when the user presses the button body 1 to move it downward a certain distance, the lower end of the limiting protrusion 51 can abut against the upper side surface of the fixing member 3 to prevent the button body 1 from continuing to move downward. This can limit the downward movement of the button body 1 and prevent the button body 1 from moving downward beyond a preset range and causing damage to the adjustment member 2 and other related components.

[0065] Optionally, refer to Figure 1 and Figure 2 An elastic body 8 is provided on the fixing member 3 , and the limiting protrusion 51 is used to squeeze the elastic body 8 , and the limiting protrusion 51 is used to move away from the fixing member 3 along the axial direction of the adjusting shaft 21 under the elastic force of the elastic body 8 .

[0066] Specifically, the elastic body 8 can be made of elastic materials such as foam, rubber, spring steel, etc. When the user presses the key body 1 downward, the lower end of the limit protrusion 51 will press the elastic body 8 downward, and the elastic body 8 can have a certain buffering effect on the pressed key body 1; and when the user removes the pressing force on the key body 1, the elastic body 8 in the compressed state can push the limit protrusion 51 upward based on its own elastic potential energy, thereby driving the key body 1 to rebound upward to the initial position, thereby realizing the automatic reset of the key body 1.

[0067] Optionally, refer to Figure 1 , Figure 2 and Figure 3 The support member 5 is provided with a limiting buckle 52 , and the fixing member 3 is provided with a limiting flange 321 ; the limiting buckle 52 is used to buckle on the limiting flange 321 to prevent the button body 1 from moving away from the fixing member 3 along the axial direction of the adjustment shaft 21 .

[0068] like Figure 3 As shown, the limiting buckle 52 may include a vertical portion 521 and a transverse portion 522, one end of the transverse portion 522 is connected to the lower end of the vertical portion 521; an avoidance area is provided below the limiting flange 321, and the lower end of the vertical portion 521 extends into the avoidance area so that the transverse portion 522 can be buckled on the lower side of the limiting flange 321.

[0069] When the user pulls the button body 1 upward for a certain distance, or when the button body 1 rebounds upward for a certain distance under the elastic force of the elastomer 8, the limit buckle 52 can be buckled on the limit flange 321 to prevent the button body 1 from continuing to move upward. In this way, the upward movement of the button body 1 can be limited to prevent the button body 1 from moving upward for a distance exceeding the preset range and causing damage to the adjustment member 2 and other related components.

[0070] Optionally, refer to Figure 1 , Figure 2 and Figure 4The support member 5 is provided with a connecting boss 53, which has a connecting ring 531 and a transverse flange 532. The connecting ring 531 extends along the axial direction of the connecting bearing 4, and the transverse flange 532 is arranged on the inner ring surface of the connecting ring 531. The inner ring surface of the connecting ring 531 is interference fit with the outer ring of the connecting bearing 4, and the transverse flange 532 abuts against at least one side end surface of the outer ring of the connecting bearing 4.

[0071] Based on the above arrangement, the axial limitation of the support member 5 can be conveniently achieved by utilizing the cooperation between the transverse flange 532 and the outer ring of the connecting bearing 4, thereby preventing the support member 5 from axially sliding relative to the connecting bearing 4 during subsequent use.

[0072] Preferably, if Figure 4 As shown, the connecting ring 531 and the transverse flange 532 are integrally formed, and the wall thickness of the connecting ring 531 is equal to the thickness of the transverse flange 532, so that the uniformity of the overall thickness of the connecting boss 53 can be ensured, and shrinkage of the support member 5 during the molding process due to some areas being too thick or some areas being too thin can be avoided, thereby improving the molding accuracy of the support member 5.

[0073] Correspondingly, refer to Figure 1 and Figure 2 An embodiment of the utility model further provides an electrical device, which includes a button assembly in any of the above embodiments.

[0074] In this embodiment, the electrical equipment may refer to any device or equipment that can control, adjust, switch, detect, and protect circuits or electrical appliances by changing circuit parameters. Specifically, the electrical equipment may include audio equipment, household appliances, etc. Taking audio equipment as an example, the audio equipment may include functional components such as sound sources, control devices, audio processors, and power amplifiers. The audio playback function of the audio equipment may be realized through the cooperation between the above functional components.

[0075] Several button assemblies provided in the above embodiments can be set on each functional device of the electrical equipment, wherein the component to be adjusted 2 can refer to the components used for signal input in each functional device of the electrical equipment. The user can control the component to be adjusted 2 to input the corresponding signal to the electrical equipment by pressing, pulling or twisting the button body 1 in the button assembly, so as to trigger the electrical equipment to perform circuit parameter transformation operations, thereby realizing corresponding control, adjustment, switching, detection, protection and other functions.

[0076] The specific structure of the key assembly can be referred to the above embodiments. Since the electrical device adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0077] It should be noted that other contents of the key assembly and electrical equipment disclosed in the present utility model can be found in the prior art and will not be described in detail here.

[0078] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A button assembly, characterized in that: The button assembly comprises: A part to be adjusted, the part to be adjusted comprising an adjusting shaft and a fixing part; a fixing member, the fixing portion being connected to the fixing member; A button body connected to the adjusting shaft; the button body is used to drive the adjusting shaft to move along the axis direction of the adjusting shaft and to drive the adjusting shaft to rotate around the axis of the adjusting shaft under the action of an external force; A connecting bearing, the inner ring of which is connected to the key body; A support member is connected to the outer ring of the connecting bearing; the support member is used to abut and cooperate with the fixing member.

2. The key assembly according to claim 1, characterized in that: The button assembly includes a connecting seat; the connecting seat is connected to the adjusting shaft, and the button body is connected to the connecting seat; The button body has a first snap-on portion, and the connecting seat has a second snap-on portion. The first snap-on portion and / or the second snap-on portion are inserted into the inner ring of the connecting bearing. The first snap-on portion abuts against one side end face of the inner ring of the connecting bearing, and the second snap-on portion abuts against the other side end face of the inner ring of the connecting bearing.

3. The key assembly according to claim 2, characterized in that: The connecting seat is provided with a connecting cavity, and the connecting cavity is sleeved on the adjusting shaft; And / or, the button body is provided with a positioning cavity, the connecting seat is provided with a positioning boss, and the positioning boss is inserted into the positioning cavity.

4. The key assembly according to claim 3, characterized in that: The connecting cavity is arranged on a side of the connecting seat facing the adjusting shaft, and the positioning boss is arranged on a side of the connecting seat facing away from the adjusting shaft; In the axial direction of the adjusting shaft, the projection contour of the positioning boss covers the projection contour of the connecting cavity.

5. The key assembly according to claim 2, characterized in that: The button body comprises a top shell and a connecting column; the first end of the connecting column is connected to the top shell, and the first buckle portion is arranged at the second end of the connecting column; A connecting hole is formed at the second end of the connecting column, and the connecting hole has a threaded section and a light hole section, the threaded section and the light hole section are arranged in sequence in a direction away from the connecting seat, the connecting seat is locked to the threaded section by a threaded fastener, and the light hole section extends to the top shell.

6. The key assembly according to claim 1, characterized in that: The support member is provided with a limiting protrusion; the limiting protrusion is used to abut against the fixing member to prevent the button body from approaching the fixing member along the axial direction of the adjusting shaft.

7. The key assembly according to claim 6, characterized in that: An elastic body is disposed on the fixing member, and the limiting protrusion is used to press the elastic body, and the limiting protrusion is used to move away from the fixing member along the axial direction of the adjusting shaft under the elastic force of the elastic body.

8. The key assembly according to claim 1, characterized in that: The support member is provided with a limiting buckle, and the fixing member is provided with a limiting flange; the limiting buckle is used to buckle on the limiting flange to prevent the button body from moving away from the fixing member along the axial direction of the adjusting shaft.

9. The key assembly according to claim 1, characterized in that: The support member is provided with a connecting boss, the connecting boss has a connecting ring and a transverse flange, the connecting ring extends along the axial direction of the connecting bearing, and the transverse flange is arranged on the inner ring surface of the connecting ring; The inner ring surface of the connecting ring is interference-fitted with the outer ring of the connecting bearing, and the transverse flange abuts against at least one side end surface of the outer ring of the connecting bearing.

10. An electrical device, characterized in that: The electrical device comprises a key assembly as claimed in any one of claims 1 to 9.

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