CN216589426U

CN216589426U - Fixing device

Info

Publication number: CN216589426U
Application number: CN202123170395.4U
Authority: CN
Inventors: 王硕
Original assignee: Weton Electronics Co ltd
Current assignee: Weton Electronics Co ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-05-24
Anticipated expiration: 2031-12-15

Abstract

The utility model provides a fixing device which comprises a shaft body, a clamping groove, a screw and a positioning assembly, wherein a through hole is formed in the shaft body; the clamping groove is arranged at one end of the shaft body and is communicated with the through hole; the screw is arranged in the through hole and penetrates through the through hole; the positioning assembly is arranged between the screw and the clamping groove, one end of the positioning assembly is clamped with the screw, and the other end of the positioning assembly is connected with the clamping groove. According to the technical scheme, the positioning assembly is additionally arranged between the screw and the shaft body, under the action of the positioning assembly, the connection strength between the screw and the shaft body can be improved during assembly, the screw and the shaft body can be linked during disassembly, so that the shaft body is driven to retreat while the screw is retreated, a special tool is not needed, the convenience degree in the disassembly and assembly process is improved, and the labor cost for keeping parts is reduced.

Description

Fixing device

Technical Field

The utility model relates to the technical field of fixed parts, in particular to a fixing device.

Background

According to the installation of the current sensor shaft, only the screw penetrates through the shaft locking shaft body and the taper hole in the axial direction to be matched, the axial installation is usually adopted in the installation direction, the installation screw only has the installation effect, the installation screw cannot realize the effect of withdrawing the shaft body simultaneously, the shaft body is withdrawn and needs to be realized by other special tools, the complexity of the disassembly and the assembly is increased, and the convenience in disassembly and assembly is reduced. And after the mounting screw is withdrawn, the mounting screw is separated from the shaft into two parts, and the mounting screw is lost after being detached.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a fixing device, and aims to solve the technical problem that in the prior art, a shaft body and a screw are low in convenience degree in the dismounting process.

To achieve the above object, the present invention provides a fixing device, including:

the shaft body is provided with a through hole;

the clamping groove is arranged at one end of the shaft body and is communicated with the through hole;

the screw is arranged in the through hole and penetrates through the through hole;

the positioning assembly is arranged between the screw and the clamping groove, one end of the positioning assembly is connected with the screw in a clamped mode, and the other end of the positioning assembly is connected with the clamping groove.

Optionally, the one end in joint groove with the axis body is connected, be equipped with the location step on the other end in joint groove, the location step court one side of locating component is protruding, the location step with locating component keeps away from the one end butt of screw.

Optionally, the joint groove is in an annular arrangement, an accommodating cavity is formed in the joint groove, the accommodating cavity is communicated with the through hole, a mounting hole is formed in the side wall, opposite to the through hole, of the joint groove, the mounting hole is communicated with the accommodating cavity, and the positioning assembly is arranged in the accommodating cavity.

Optionally, a central axis of the through hole overlaps a central axis of the mounting hole, and a diameter of the mounting hole is greater than or equal to a diameter of the through hole.

Optionally, the edge of the mounting hole is provided with a chamfer.

Optionally, the clamping groove and the shaft body are integrally formed.

Optionally, the screw comprises a screw head and a screw rod connected with the screw head, a positioning groove is formed between the screw head and the screw rod, and one end, far away from the clamping groove, of the positioning assembly is clamped in the positioning groove.

Optionally, the diameter of the screw is smaller than the aperture of the through hole.

Optionally, locating component includes holding ring, first movable piece and second movable piece, follows the inner ring marginal interval of holding ring is equipped with a plurality ofly first movable piece follows the outer ring marginal interval of holding ring is equipped with a plurality of the second movable piece, the holding ring with the screwhead butt, first movable piece joint is in the holding groove, the second movable piece butt is in on the joint groove.

Optionally, the first movable piece is rotatably connected to the positioning ring, and the first movable piece rotates along the circumferential direction of the positioning ring; the second movable piece is rotatably connected with the positioning ring, and the second movable piece rotates along the circumferential direction of the positioning ring.

According to the technical scheme, the positioning assembly is additionally arranged between the screw and the shaft body, under the action of the positioning assembly, the connection strength between the screw and the shaft body can be improved during assembly, the screw and the shaft body can be linked during disassembly, so that the shaft body is driven to retreat while the screw is retreated, a special tool is not needed, the convenience degree in the disassembly and assembly process is improved, and the labor cost for keeping parts is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is an exploded view of a fastening device of the present invention;

FIG. 2 is an overall view of the fastening device of the present invention;

FIG. 3 is a schematic structural view of a shaft body of the fixing device of the present invention;

FIG. 4 is a schematic view of a positioning assembly of the fixing device of the present invention;

fig. 5 is a schematic structural view of a screw in the fixing device of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Shaft body	11	Through hole
20	Clamping groove	21	Positioning step
				22	Containing cavity	30	Screw nail
31	Screw rod	32	Screw head
				33	Locating slot	40	Positioning assembly
41	The first movable plate	42	Second movable plate
				43	Locating ring

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The "up and down" referred to in the present invention is based on the orientation shown in fig. 1, that is, the "up and down" referred to in the present invention corresponds to the up and down orientation of fig. 1.

The utility model provides a fixing device, which comprises a shaft body 10, a clamping groove 20, a screw 30 and a positioning assembly 40, wherein a through hole 11 is formed in the shaft body 10; the clamping groove 20 is arranged at one end of the shaft body 10 and is communicated with the through hole 11; the screw 30 is inserted into the through hole 11 from one end of the clamping groove 20 and penetrates out from one end of the through hole 11 far away from the clamping groove 20; the locating component 40 is arranged between the screw 30 and the clamping groove 20, one end of the locating surface is clamped with the screw 30, and the other end of the locating surface is connected with the clamping groove 20.

The fixing device is suitable for fixing the sensor. The shaft body 10 may be a conical shaft, a circular shaft, or the like, and when the assembly is performed, the shaft body 10 is clamped on an object to be fixed, such as a sensor, at a position to be installed of an external structure, and one side of the external structure, where the clamping groove 20 is disposed, faces outwards, that is, faces away from the external structure. Before the screw 30 is inserted into the shaft body 10, the positioning component 40 is mounted on the screw 30, and then the screw 30 is aligned with the through hole 11 and inserted into the through hole 11, and in the process of inserting the screw 30 into the through hole 11, the positioning component 40 and the clamping groove 20 are mutually matched and clamped, so that the assembling tightness between the screw 30 and the shaft body 10 is improved, and the screw 30 is prevented from falling off from the shaft body 10.

When the fixing device needs to be disassembled, the screw 30 can be screwed to withdraw from the shaft body 10, and in the process of withdrawing the screw 30, due to the action of the positioning component 40, the positioning component 40 is locked with the shaft body 10, so that the shaft body 10 can be driven to withdraw from an external structure.

According to the technical scheme, the positioning assembly 40 is additionally arranged between the screw 30 and the shaft body 10, under the action of the positioning assembly 40, the connection strength between the screw 30 and the shaft body 10 can be improved during assembly, the screw 30 and the shaft body 10 can be linked during disassembly, so that the shaft body 10 is driven to retreat while the screw 30 retreats, a special tool is not needed, the convenience degree in the disassembly and assembly process is improved, and the labor cost for keeping parts is reduced.

Further, the one end in joint groove 20 with the axis body 10 is connected, be equipped with location step 21 on the other end in joint groove 20, location step 21 court one side arch of locating component 40, location step 21 with locating component 40 keeps away from the one end butt of screw 30. In this embodiment, the clamping groove 20 and the shaft body 10 can be integrally formed, so as to improve the connection strength between the clamping groove 20 and the shaft body 10. The clamping groove 20 is arranged at the end position of the shaft body 10, after one end of the clamping groove 20 is connected with the shaft body 10, the other end of the clamping groove 20 extends towards one side far away from the shaft body 10, and the extending direction is parallel to the axis of the shaft body 10. When the assembly is completed, the positioning step 21 protrudes toward one side of the positioning member 40, and when the screw 30 is not inserted into the through hole 11, the positioning step 21 may be regarded as protruding toward one side of the through hole 11. Under the action of the positioning step 21, the positioning step 21 can further limit the space in the direction perpendicular to the axis of the through hole 11, thereby achieving the positioning effect.

When the screw 30 is assembled, since the positioning member 40 is mounted on the screw 30, the screw 30 carries the positioning member 40 over the positioning step 21 as the depth of the screw 30 inserted into the through hole 11 increases. It should be noted that, in this embodiment, the positioning component 40 may adopt an elastic member, so that when passing through the positioning step 21, the positioning component 40 is pressed by the positioning step 21; after the positioning assembly 40 completely passes through the positioning step 21, the positioning assembly 40 returns to the original shape, so that under the action of the positioning step 21, the positioning step 21 prevents the positioning assembly 40 from retracting, and a positioning effect is achieved.

Further, joint groove 20 is the annular setting, holding chamber 22 has in the joint groove 20, holding chamber 22 with through-hole 11 intercommunication, joint groove 20 with be equipped with the mounting hole on the relative one side lateral wall of through-hole 11, the mounting hole with holding chamber 22 intercommunication, locating component 40 sets up in the holding chamber 22. Because the axis body 10 is cylindrical setting, in order to improve fixing device overall structure's rationality, joint groove 20 also can adopt the annular setting, joint groove 20 with the 10 edge connections of axis body be formed with in the joint groove 20 holding chamber 22, work as screw 30 inserts back in the through-hole 11, screw 30 then drives locating component 40 enters into in the holding chamber 22.

In order to simplify the structure, the clamping groove 20 is annularly arranged on the whole, so that the positioning step 21 also encloses a circle of raised annular structure, the center of the annular structure is hollowed out to form the mounting hole, and the effects of simplifying the structure and reducing the whole volume are achieved. In addition, in the embodiment, by adopting the annular structure, when the positioning assembly 40 is brought into the accommodating cavity 22, no matter the positioning assembly 40 rotates to any angle, the positioning assembly can be blocked by the positioning step 21, so that the structural stability and reliability of the fixing device are further improved.

In the above process, since the clamping groove 20 is annularly arranged, the through hole 11 is shielded, and therefore, in this embodiment, the mounting hole is formed in the clamping groove 20, and the central axis of the mounting hole are located on the same straight line, so as to achieve the effect of avoiding the screw 30. In the process of inserting the screw 30, the screw 30 is inserted into the mounting hole, and then the screw 30 is moved continuously along the central axis direction of the through hole 11 until the whole screw 30 is inserted into the through hole 11.

Further, in this embodiment, the edge of the mounting hole is chamfered, that is, the edge of the mounting hole has a certain inclination, so that in the process that the screw 30 or the positioning component 40 passes through the mounting hole, the screw 30 or the positioning component 40 can be guided, and the convenience of installation is improved.

Specifically, the screw 30 includes a screw head 32 and a screw rod 31 connected to the screw head 32, a positioning groove 33 is provided between the screw head 32 and the screw rod 31, and an end of the positioning assembly 40 away from the clamping groove 20 is clamped in the positioning groove 33. And locating component 40 includes holding ring 43, first movable piece 41 and second movable piece 42, follows the inner ring marginal interval of holding ring 43 is equipped with a plurality of first movable piece 41, follows the outer ring marginal interval of holding ring 43 is equipped with a plurality of second movable piece 42, holding ring 43 with screwhead 32 butt, first movable piece 41 joint is in the constant head tank 33, the butt of second movable piece is in on the joint groove 20.

It should be noted that the diameter of the positioning ring 43 is slightly smaller than the diameter of the screw head 32, and when the positioning assembly 40 is assembled to the screw 30, the positioning ring 43 abuts against the side of the screw head 32 close to the positioning slot 33, and the first movable piece 41 is clamped into the positioning slot 33. The second movable piece 42 is opened outward. During the process of inserting the screw 30 into the through hole 11, the screw 30 will drive the positioning ring 43, the first movable plate 41 and the second movable plate 42 to move. The radial width of the second movable plate 42 needs to be greater than the diameter of the mounting hole, so that the second movable plate 42 can abut against the positioning step 21 after entering the accommodating cavity 22.

Further, the first movable piece 41 is rotatably connected to the positioning ring 43, and the first movable piece 41 rotates along the circumferential direction of the positioning ring 43; the second movable piece 42 is rotatably connected to the positioning ring 43, and the second movable piece 42 rotates along the circumferential direction of the positioning ring 43. The first movable piece 41 and the second movable piece 42 may be made of a material having plasticity, so that when the positioning assembly 40 is assembled, the first movable piece 41 can be inserted into the positioning groove 33, and the second movable piece 42 can be elastically abutted to the positioning step 21 after passing through the mounting hole by the plasticity.

Wherein the diameter of the screw rod 31 is slightly smaller than the aperture of the through hole 11, so that the screw rod 31 can freely rotate in the through hole 11, and the position of the screw rod 31 can be adjusted slightly, so as to prevent the screw 30 from being misaligned due to deviation in the assembling process of the fixing device.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the technical solutions of the present invention, which are made by using the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A fixation device, comprising:

the shaft body is provided with a through hole;

2. The fixing device according to claim 1, wherein one end of the engaging groove is connected to the shaft, a positioning step is provided at the other end of the engaging groove, the positioning step protrudes toward one side of the positioning member, and the positioning step abuts against one end of the positioning member away from the screw.

3. The fixing device according to claim 2, wherein the engaging groove is annularly disposed, the engaging groove has a receiving cavity therein, the receiving cavity is communicated with the through hole, a side wall of the engaging groove opposite to the through hole is provided with a mounting hole, the mounting hole is communicated with the receiving cavity, and the positioning assembly is disposed in the receiving cavity.

4. A fixture according to claim 3, wherein the central axis of said through hole overlaps the central axis of said mounting hole, and the diameter of said mounting hole is greater than or equal to the diameter of said through hole.

5. A fastening device as claimed in claim 3, wherein the edges of the mounting holes are chamfered.

6. The fixing device of claim 2, wherein the engaging groove is integrally formed with the shaft.

7. The fixing device according to any one of claims 1 to 6, wherein the screw comprises a screw head and a screw rod connected with the screw head, a positioning groove is arranged between the screw head and the screw rod, and one end of the positioning component, which is far away from the clamping groove, is clamped in the positioning groove.

8. A fixation device as claimed in claim 7, wherein the diameter of the screw is smaller than the bore diameter of the through-hole.

9. The securing device according to claim 7, wherein the positioning assembly includes a positioning ring, a first movable plate and a second movable plate, the first movable plate is spaced along an inner circumferential edge of the positioning ring, the second movable plate is spaced along an outer circumferential edge of the positioning ring, the positioning ring abuts against the screw head, the first movable plate is engaged with the positioning groove, and the second movable plate abuts against the engaging groove.

10. The fastening device of claim 9, wherein the first movable tab is rotatably coupled to the retaining ring, the first movable tab rotating in a circumferential direction of the retaining ring; the second movable piece is rotatably connected with the positioning ring, and the second movable piece rotates along the circumferential direction of the positioning ring.