CN219159348U

CN219159348U - Screw-connection piece, fitting and electronic equipment

Info

Publication number: CN219159348U
Application number: CN202222977045.7U
Authority: CN
Inventors: 胡平; 王全搌; 邓俊; 李胜
Original assignee: Hytera Communications Corp Ltd
Current assignee: Hytera Communications Corp Ltd
Priority date: 2022-11-08
Filing date: 2022-11-08
Publication date: 2023-06-09
Anticipated expiration: 2032-11-08

Abstract

The utility model discloses a screw-connection piece, a fitting and electronic equipment, wherein the screw-connection piece comprises a rod part and a head part; the shank includes at least one threaded section; the head part comprises a first end surface and a second end surface opposite to the first end surface, the second end surface is connected with the rod part, and a force application groove is formed on the first end surface; the force application groove comprises at least two groove sections which are uniformly distributed in a radial way, a rotary positioning surface is formed on one side of the at least two groove sections, which corresponds to the disassembly direction of the at least one thread section, and an overload prevention slope is formed on one side of the at least one groove section, which corresponds to the locking direction of the at least one thread section. When the screw-connection piece is operated by the tool through the force application groove, the force can be continuously applied only in the dismounting direction, and excessive locking caused by continuous force in the locking direction can be avoided.

Description

Screw-connection piece, fitting and electronic equipment

Technical Field

The utility model relates to the field of electronics, in particular to a screw joint, a fitting and electronic equipment.

Background

Electronic devices such as communication devices are often provided with quick-release quick-attach fittings (e.g., ear-pick) that are required to be locked by threaded fasteners, which are often provided with a straight or cross-shaped force application slot in the upper end face of the head, often requiring attachment and detachment by means of a straight or cross-shaped screwdriver. Such screw-on fittings can be mounted and dismounted to some extent by means of tools, but there is a problem of excessive locking during use, which on the one hand can lead to inconvenience in dismounting and on the other hand can damage the locking structure (e.g. slide wire, screw-on breakage) and thus damage the electronic equipment.

Disclosure of Invention

The utility model aims to provide an improved screw joint, an improved accessory and an improved electronic device.

The technical scheme adopted for solving the technical problems is as follows:

providing a screw joint comprising a rod part and a head part;

the shank including at least one threaded section;

the head part comprises a first end face and a second end face opposite to the first end face, the second end face is connected with the rod part, and a force application groove is formed on the first end face; the force application groove comprises at least two groove sections which are uniformly distributed radially, a rotary positioning surface is formed on one side of the at least two groove sections, which corresponds to the disassembly direction of the at least one thread section, and an overload prevention slope is formed on one side of the at least two groove sections, which corresponds to the locking direction of the at least one thread section.

In some embodiments, the tightening direction of the at least one thread segment is clockwise, the overload prevention slope is formed on a side corresponding to the clockwise direction of the at least two groove segments, and the rotation positioning surface is formed on a side corresponding to the counterclockwise direction of the at least two groove segments.

In some embodiments, the tightening direction of the at least one thread segment is a counterclockwise direction, the overload prevention slope is formed on a side corresponding to the counterclockwise direction of the at least two groove segments, and the rotation positioning surface is formed on a side corresponding to the clockwise direction of the at least two groove segments.

In some embodiments, the at least two groove sections are mutually communicated or mutually spaced, and are uniformly distributed in a radial shape with the center of the first end face as the center of the circle.

In some embodiments, the head is cylindrical and is provided with anti-slip structures on its sides.

In some embodiments, the rod portion further comprises a bench stage and a polished rod section, an upper end of the bench section is connected with the second end face, an upper end of the polished rod section is connected with a lower end of the bench section, and an upper end of the at least one threaded section is connected with a lower end of the polished rod section; the diameter of the step section is smaller than that of the head section, and the diameter of the polish rod section is smaller than that of the stage section.

Also provided is an accessory for an electronic device, comprising a housing and the screw; the shell is provided with a through mounting hole, and the screw connector rotatably penetrates through the mounting hole.

In some embodiments, the mounting hole comprises a first hole section, a second hole section, and a third hole section in sequential communication; the apertures of the first and third hole segments are larger than the aperture of the second hole segment.

In some embodiments, the buckle and the mounting hole are respectively arranged at two ends of the shell.

An electronic device is provided, which comprises a host and the accessory; the host comprises a threaded sleeve matched with the threaded piece.

The utility model has the beneficial effects that: because the at least two groove sections of the force application groove of the screw joint piece are provided with the rotary positioning surfaces on one side corresponding to the disassembling direction of the thread section, overload prevention slopes are formed on one side corresponding to the locking direction of the thread section, when the screw joint piece is operated by the tool through the force application groove, the force can be continuously applied in the disassembling direction, excessive locking caused by the continuous force in the locking direction can be avoided, thereby avoiding damage to the structural function of a product, avoiding influencing normal use of the product, and improving user experience.

Drawings

The utility model will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic diagram of a partial structure of an electronic device according to an embodiment of the present utility model;

FIG. 2 is a front view of a screw-on member of the electronic device of FIG. 1;

FIG. 3 is a top view of a screw-on member of the electronic device of FIG. 1;

fig. 4 is a partial structural cross-sectional view of the accessory of the electronic device shown in fig. 1.

Detailed Description

For a clearer understanding of technical features, objects and effects of the present utility model, a detailed description of embodiments of the present utility model will be made with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "rear", "upper", "lower", "left", "right", "longitudinal", "transverse", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. are configured and operated in specific directions based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model, and do not indicate that the apparatus or element to be referred to must have specific directions, and thus should not be construed as limiting the present utility model.

It should also be noted that unless explicitly stated or limited otherwise, terms such as "mounted," "connected," "secured," "disposed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or one or more intervening elements may also be present. The terms "first," "second," "third," and the like are used merely for convenience in describing the present utility model and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defining "first," "second," "third," etc. may explicitly or implicitly include one or more such features. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present utility model. It will be apparent, however, to one skilled in the art that the present utility model may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present utility model with unnecessary detail.

The utility model will be described in further detail with reference to the accompanying drawings and specific examples.

Fig. 1 illustrates an electronic device, which may be a communication device such as a headset, for communication, which may include an accessory a and a host B, in some embodiments of the present utility model. In the illustration, both the accessory a and the host B are only parts of the structure, for example, the host B is illustrated only as a part of the host housing that mates with the accessory a.

Host B may be used to implement the primary functions of the electronic device, and accessory a may be removably mounted on host B for providing additional functionality to host B. In some embodiments, host B is a headset body that may be used for reception, processing, transmission of signals, etc. Fitting a may be an ear microphone assembly for receiving an acoustic signal for host B.

Fitting a may include a screw 10 and a housing 20 in some embodiments. The screw 10 is rotatably mounted to the housing 20 for screwing the housing 20 to the host B. The housing 20 serves as a base for mounting other components of the fitting a.

As shown in fig. 2, the screw 10, which in some embodiments may be integrally formed of a metallic material, includes a head portion 11 and a shank portion 12. The head 11 is used for the user to operate the rotation of the screw 10 by hand or by means of a tool. The stem 12 is coaxially connected to the head 11 and has a diameter smaller than that of the head 11. The rod 12 is configured to rotatably pass through the housing and be threaded with the host machine.

The head 11, which in some embodiments is cylindrical, is useful as an operating portion of the screw 10, includes a first end face 111, a second end face 112 opposite the first end face 111, and a side face 113 connecting the first end face 111 to the second end face 112. The first end surface 111 has a force application groove 1110 formed therein for receiving a driving tool. The second end face 112 is connected to the stem 12. The side 113 is provided with an anti-slip structure for increasing friction when the user turns the screw 10 by hand.

As further shown in fig. 2, the shank 12 in some embodiments includes a stage 121, a polished rod segment 122, and a threaded segment 123, with the stage 121, polished rod segment 122, and threaded segment 123 being coaxially connected in sequence. Specifically, the upper end of the step section 121 is connected to the second end face 112, the upper end of the polish rod section 122 is connected to the lower end of the step section 121, and the upper end of the thread section 123 is connected to the lower end of the polish rod section 122.

In some embodiments, the diameter of stage 121 is less than the diameter of head 11; the diameter of the polish rod section 122 is smaller than the diameter of the step section 121; the threaded section 123 is provided with threads for screwing onto corresponding threaded sleeves (not shown) of the host B.

Referring to fig. 3 together, the first end surface 111 of the head 11 is formed with a force application groove 1110 for accommodating a driving tool, the force application groove 1110 is used for preventing structural damage caused by excessive locking, and includes two groove sections uniformly arranged in a radial manner with the center of the first end surface 111 as a center, a rotation positioning surface 1111 is formed on one side of each groove section corresponding to the dismounting direction of the thread section 123, and an overload prevention slope 1112 is formed on one side of each groove section corresponding to the locking direction of the thread section 123.

The force application slot 1110 may in some embodiments be a variation of a straight slot, i.e., it includes two interconnected and

collinear slot segments

1110a, 1110b. It will be appreciated that in some embodiments, the two

channel segments

1110a, 1110b of the apply channel 1110 may not be in communication. It is further understood that the apply slot 1110 is not limited to two

slot segments

1110a, 1110b, e.g., four slot segments based on a cross slot variation may also be suitable. It is understood that the number of the groove segments of the force application groove 1110 is not limited as long as the same or similar functions can be achieved, and that different groove segments can be disposed to communicate with each other or to be spaced apart from each other.

It will be appreciated that in some embodiments, the tightening direction of the thread segments 123 is clockwise, the overload prevention ramps 1112 are formed on the clockwise side of the groove segments, and the rotational detent surfaces 1111 are formed on the counter-clockwise side of the groove segments. In other embodiments, the tightening direction of the thread segments 123 is counterclockwise, the overload prevention slope 1112 is formed on the side corresponding to the counterclockwise direction of the groove segments, and the rotation positioning surface 1111 is formed on the side corresponding to the clockwise direction of the groove segments.

As shown in fig. 3, when the screw 10 needs to be detached, the driving tool is attached to the side wall of the force application groove 1110, and is rotated in the detachment direction, and acts on the rotation positioning surface 1111 to drive the screw 10 to rotate in the detachment direction, so as to realize the function of assisting the detachment of the driving tool; when the screw-on part 10 needs to be locked, the driving tool acts on the overload prevention slope 1112 to drive the screw-on part 10 to rotate along the locking direction, slipping can occur after the screw-on part is screwed up to a slightly tight state from a loose state and the screw-on part cannot be continuously screwed up, then a user can select to further screw-on the screw-on part 10 by hands to control the locking force, the damage of the structural function of a product caused by excessive locking is avoided, normal use of the product is not influenced, and the user experience is improved.

As shown in fig. 4, the housing 20 may include a body portion 21, a mounting hole 22, and a catch 23 in some embodiments. The main body 21 is located at a middle position of the housing 20, and has one end closed and the other end opened, so as to form a receiving cavity in the housing 20. The mounting hole 22 is provided at the closed end of the main body 21, and has a vertically penetrating through hole for mounting the screw 10. The buckle 23 and the mounting hole 22 are respectively disposed at two ends of the housing 20, and are used for being operatively engaged with and connected to the host B.

The main body of the mounting hole 22 is a through hole penetrating up and down, and may include a first hole section 221, a second hole section 222 and a third hole section 223 which are sequentially communicated. In some embodiments, the aperture of the second hole section 222 is adapted to the diameter of the polish rod section 122, and the apertures of the first hole section 221 and the third hole section 223 are larger than the aperture of the second hole section 222 and are adapted to the diameter of the step section 121 and the outer diameter of a screw sleeve (not shown) of the host B, respectively.

The second hole section 222 is matched with the polish rod section 122, the first hole section 221 is matched with the step section 121, and the third aperture 223 is matched with a screw sleeve of the host B so as to realize tighter and stable matching between the screw connector 10 and the shell 20 and the host B respectively. The second hole section 222, the step section 121 and the thread section 123 form a limiting structure, and the movement range of the polish rod section 122 is limited in the second hole section 222, so that the screw joint 10 is limited to move in the mounting hole 22, and the screw joint is prevented from falling off.

It is to be understood that the above examples only represent preferred embodiments of the present utility model, which are described in more detail and are not to be construed as limiting the scope of the utility model; it should be noted that, for a person skilled in the art, the above technical features can be freely combined, and several variations and modifications can be made without departing from the scope of the utility model; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. A screw-on fitting, comprising:

-a shank (12) comprising at least one threaded section (123); and

a head (11) including a first end surface (111) and a second end surface (112) opposite to the first end surface (111), the second end surface (112) being connected to the rod (12), the first end surface (111) being formed with a biasing groove (1110); the force application groove (1110) comprises at least two groove sections which are uniformly distributed in a radial mode, a rotary positioning surface (1111) is formed on one side, corresponding to the disassembly direction of the at least one thread section (123), of the at least two groove sections, and an overload prevention slope (1112) is formed on one side, corresponding to the locking direction of the at least one thread section (123).

2. The screw joint according to claim 1, characterized in that the tightening direction of the at least one thread section (123) is clockwise, the overload prevention slope (1112) is formed on the clockwise side of the at least two groove sections, and the rotational positioning surface (1111) is formed on the counterclockwise side of the at least two groove sections.

3. The screw joint according to claim 1, characterized in that the tightening direction of the at least one thread section (123) is counter-clockwise, the overload prevention slope (1112) is formed on the counter-clockwise side of the at least two groove sections, and the rotational positioning surface (1111) is formed on the clockwise side of the at least two groove sections.

4. A screw according to claim 1, characterized in that the at least two groove segments are mutually communicated or mutually spaced and are uniformly arranged in a radial manner with the center of the first end face (111) as the center.

5. A screw-on fitting according to claim 1, characterized in that the head (11) is cylindrical and that its sides (113) are provided with anti-slip structures.

6. The screw joint according to claim 1, wherein the shank (12) comprises a stage (121) and a polished rod section (122), the upper end of the stage (121) being connected to the second end face (112), the upper end of the polished rod section (122) being connected to the lower end of the stage (121), the upper end of the at least one threaded section (123) being connected to the lower end of the polished rod section (122); the diameter of the step section (121) is smaller than the diameter of the head (11), and the diameter of the polish rod section (122) is smaller than the diameter of the stage section (121).

7. An accessory for an electronic device, comprising a housing (20), the housing (20) having a mounting hole (22) formed therethrough; characterized in that it further comprises a screw (10) according to any one of claims 1 to 6, said screw (10) being rotatably arranged through said mounting hole (22).

8. The fitting according to claim 7, wherein the mounting hole (22) comprises a first hole section (221), a second hole section (222) and a third hole section (223) in communication in sequence; the first (221) and third (223) hole segments have a larger hole diameter than the second hole segment (222).

9. The fitting according to claim 7, further comprising a clasp (23), the clasp (23) and the mounting hole (22) being provided at both ends of the housing (20), respectively.

10. An electronic device comprising a host (B), characterized in that it further comprises an accessory (a) according to any one of claims 7 to 9, said host (B) comprising a threaded sleeve cooperating with said threaded connection (10).