Differential connection structure of laser guide arm

Abstract

The utility model relates to the technical field of laser guide arms, and discloses a differential connection structure of a laser guide arm, which comprises a joint, a differential nut mounted on the right side of the joint, and a light guide extension tube mounted on the right side of the inner cavity of the joint and sleeved in the inner cavity of the differential nut; the fixing mechanism is movably arranged in the differential nut and comprises a rubber ring, a pipe sleeve, a push column and a blocking ball, the rubber ring is fixedly arranged on the inner wall of the right side of the differential nut, the pipe sleeve is elastically arranged in the differential nut, the push column is elastically arranged in the pipe sleeve, and the blocking ball is movably arranged between the pipe sleeve and the push column; the fixing mechanisms are arranged, the push column is pressed to push the blocking ball to abut against the limiting cavity and the pipe sleeve fixing shrinkage cavity, the two symmetrically-arranged fixing mechanisms are used for synchronously fixing the connector, the differential nut and the light guide extension pipe, the blocking ball and the sleeve are elastically connected, the device is not prone to falling off, and the better fixing effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of laser light guide arm, concretely relates to a differential connection structure of laser light guide arm. BACKGROUND

[0002] In some laser beauty instruments, it is usually required that the light guide arm can be flexibly adjusted in angle and direction to adapt to different beauty needs, and the differential connection structure enables the light guide arm to realize this function while ensuring the stability and precision of the laser beam in the transmission process.

[0003] The prior art discloses a differential connection structure of laser light guide arm (CN213628341U), which comprises a joint, a differential nut and a light guide extension pipe, the right side of the joint is provided with the differential nut, the right side of the inner cavity of the joint is provided with the light guide extension pipe, the light guide extension pipe is connected with the differential nut, and the inner cavity of the differential nut is provided with a fixing mechanism.

[0004] After searching, it is found that the fixing mechanism used in the prior art mainly fixes the inner cavity of the clamping groove by using the clamping block, however, such design is usually easy to disengage, there is no special clamping design between the clamping groove and the clamping block, therefore, the fixing effect of the device is not good when in use, and the device is easy to disengage due to the lack of clamping design, in addition, the device needs to fix the light guide extension pipe and the differential nut first when fixing, so that two steps are needed for fixing, and the process is relatively complicated and not fast enough.

[0005] Therefore, the utility model is provided. UTILITY MODEL CONTENT

[0006] In order to solve the above-mentioned technical problems of poor fixing effect and complicated process, the basic idea of the technical scheme of the utility model is as follows:

[0007] A differential connection structure of laser light guide arm, comprising

[0008] A joint, the right side of the joint is provided with a differential nut, the right side of the inner cavity of the joint is provided with a light guide extension pipe, the light guide extension pipe is sleeved in the inner cavity of the differential nut;

[0009] The fixing mechanism is movably arranged in the differential nut, the fixing mechanism is symmetrically arranged in two groups, the two groups of fixing mechanisms are respectively located on the two sides of the differential nut, the fixing mechanism comprises a rubber ring, a sleeve, a push column and a plug ball, the rubber ring is fixedly arranged on the inner wall of the right side of the differential nut, the sleeve is elastically arranged in the differential nut, the push column is elastically arranged in the sleeve, and the plug ball is movably arranged between the sleeve and the push column.

[0010] As a preferred embodiment of the utility model, the inside of the joint is symmetrically provided with a cylindrical through hole, the through hole penetrates the joint, the inside of the differential nut is symmetrically provided with a T-shaped contraction cavity, the contraction cavity penetrates the differential nut, the left side wall of the light guide extension pipe is symmetrically provided with a circular truncated cone shaped limiting cavity, the through hole, the contraction cavity and the limiting cavity are located on the same horizontal line and coaxially arranged, and the same fixing mechanism is arranged in the through hole, the contraction cavity and the limiting cavity.

[0011] As a preferred embodiment of the utility model, the sleeve is a Y-shaped cylinder, the sleeve penetrates the through hole, the contraction cavity and the limiting cavity, a limiting plate is fixedly arranged on the outer side wall of the sleeve, the through hole is limited and locked with the sleeve through the limiting plate, a push column is fixedly arranged between the limiting plate and the contraction cavity, and the limiting plate and the contraction cavity are elastically connected through a contraction spring.

[0012] As a preferred embodiment of the utility model, the push column is a nail-shaped column, and the push column movably penetrates in the sleeve.

[0013] As a preferred embodiment of the utility model, the inner curved surface of the sleeve is provided with a ring of nail-shaped grooves, the nail-shaped grooves correspond to the shape of the push column, a supporting spring is fixedly arranged between the nail-shaped grooves and the push column, and the nail-shaped grooves are elastically connected with the push column through the supporting spring.

[0014] As a preferred embodiment of the utility model, the bottom end of the push column is provided with a ring mouth groove with a trapezoidal cross section, two plug balls are slidingly arranged between the ring mouth groove and the sleeve, the two plug balls are symmetrically arranged on the two sides of the ring mouth groove, and the sleeve and the push column are locked in the limiting cavity through the plug balls.

[0015] As a preferred embodiment of the utility model, the bottom end of the sleeve is symmetrically provided with a plug hole, the plug hole corresponds to the shape of the plug ball, the plug ball movably arranged in the plug hole, and the plug ball is abutted between the limiting cavity and the sleeve by penetrating the plug hole.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. By setting the fixed mechanism, pressing the push column to push the plug ball to resist the limiting cavity, the sleeve fixed shrinkage cavity uses two groups of fixed mechanisms arranged symmetrically to fix the joint, differential nut and light guide extension pipe synchronously, the elastic connection of the plug ball and sleeve is added, so that the device is not easy to fall off, and better fixing effect is realized.

[0018] 2. The joint, differential nut and light guide extension pipe are fixed synchronously by the fixed mechanism, and only need to be pressed to complete the fixing, and the differential nut and light guide extension pipe are tightly attached by the tension of the rubber ring, so that simple and quick fixing is realized.

[0019] The specific embodiments of the utility model will be described in further detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0020] In the drawings:

[0021] Figure 1 It is the overall schematic view of the utility model;

[0022] Figure 2 It is the structure disassembly schematic view of the utility model;

[0023] Figure 3 It is the local section schematic view of the utility model;

[0024] Figure 4 It is the B place enlarged view schematic view in the utility model Figure 3 ;

[0025] Figure 5 It is the A place dismounting schematic view in the utility model Figure 2 .

[0026] In the drawing: 10, joint; 11, differential nut; 12, light guide extension pipe; 13, through hole; 14, shrinkage cavity; 15, limiting cavity; 16, rubber ring; 17, sleeve; 18, contraction spring; 19, push column; 20, plug ball; 21, supporting spring; 22, ring mouth slot; 23, limiting plate; 24, plug hole. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model more clear, the technical scheme in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and the following embodiments are used to illustrate the utility model.

[0028] A differential connection structure of laser light guide arm, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the device comprises a joint 10, a differential nut 11 mounted on the right side of the joint 10, a light guide extension pipe 12 mounted in the inner cavity of the joint 10, the light guide extension pipe 12 sleeved in the inner cavity of the differential nut 11; a fixing mechanism movably arranged in the differential nut 11, the fixing mechanism symmetrically arranged in two groups, the two groups of fixing mechanisms respectively located on the two sides of the differential nut 11, the fixing mechanism comprising a rubber ring 16, a sleeve 17, a push column 19 and a plug ball 20, the rubber ring 16 fixedly arranged on the inner wall of the right side of the differential nut 11, the sleeve 17 elastically arranged in the differential nut 11, the push column 19 elastically arranged in the sleeve 17, and the plug ball 20 movably arranged between the sleeve 17 and the push column 19; as shown in Figure 1 and Figure 2 As shown, the joint 10 is symmetrically provided with a cylindrical through hole 13 in the inside, the through hole 13 penetrates the joint 10, the differential nut 11 is symmetrically provided with a T-shaped contraction cavity 14 in the inside, the contraction cavity 14 penetrates the differential nut 11, and the light guide extension pipe 12 is symmetrically provided with a circular truncated cone-shaped limiting cavity 15 in the left side wall surface, the through hole 13, the contraction cavity 14 and the limiting cavity 15 are located on the same horizontal line and coaxially arranged, and the same fixing mechanism is arranged in the through hole 13, the contraction cavity 14 and the limiting cavity 15.

[0029] Specifically, the device is fixed by the fixing mechanism, the push column 19 is pressed to push the plug ball 20 to abut against the limiting cavity 15, the sleeve 17 fixedly arranged in the contraction cavity 14 is used to synchronously fix the joint 10, the differential nut 11 and the light guide extension pipe 12 by the two groups of fixing mechanisms arranged symmetrically, the elastic connection of the plug ball 20 and the sleeve 17 is added to make the device not easy to fall off, better fixing effect is realized, in use, only the through hole 13, the contraction cavity 14 and the limiting cavity 15 need to be aligned to make them on the same horizontal line, then the fixing mechanism is added to them, and the fixing can be completed by pressing, at the same time, the differential nut 11 and the light guide extension pipe 12 are tightly adhered by the tension of the rubber ring 16, simple and fast fixing is realized.

[0030] As shown in Figure 2 , Figure 3 , Figure 4 and Figure 5 The sleeve 17 is a Y-shaped cylinder, the sleeve 17 penetrates the through hole 13, the contraction cavity 14 and the limiting cavity 15, the limiting plate 23 is fixedly arranged on the outer side wall surface of the sleeve 17, the through hole 13 is limited and locked by the limiting plate 23, the push column 19 is fixedly arranged between the limiting plate 23 and the contraction cavity 14, and the limiting plate 23 and the contraction cavity 14 are elastically connected by the contraction spring 18; as shown in Figure 4 The push column 19 is a nail-shaped column, and the push column 19 movably penetrates in the sleeve 17; as shown in Figure 4 and Figure 5As shown, the inner curved surface of the sleeve 17 is provided with a circle of nail-shaped slots corresponding to the shape of the push column 19, and the support spring 21 is fixedly arranged between the nail-shaped slots and the push column 19, and the nail-shaped slots are elastically connected to the push column 19 through the support spring 21. Figure 4 As shown, the bottom end of the push column 19 is provided with a ring-shaped slot 22 with a trapezoidal cross section, and the two blocking balls 20 are slidingly arranged between the ring-shaped slot 22 and the sleeve 17, and the two blocking balls 20 are symmetrically arranged on the two sides of the ring-shaped slot 22, and the sleeve 17 and the push column 19 are locked in the limiting cavity 15 through the blocking balls 20. Figure 4 and Figure 5 As shown, the bottom end of the sleeve 17 is symmetrically provided with a blocking hole 24 corresponding to the shape of the blocking ball 20, and the blocking ball 20 is movable in the blocking hole 24, and the blocking ball 20 is abutted between the limiting cavity 15 and the sleeve 17 through the blocking hole 24.

[0031] Specifically, in use, the sleeve 17 is first pulled up, the bottom end part of the sleeve 17 and the push column 19 are pulled up into the contraction cavity 14 by means of the contraction spring 18 between the limiting plate 23 and the contraction cavity 14, and then the through hole 13, the contraction cavity 14 and the limiting cavity 15 are installed on the same horizontal line, the sleeve 17 is pulled up, the sleeve 17 is elastically returned with the push column 19 under the elastic return of the contraction spring 18, at this time, the push column 19 is synchronously pressed, and the push column 19 and the sleeve 17 form a space sufficient for the two blocking balls 20 to move under the assistance of the support spring 21, at this time, the blocking balls are retracted between the push column 19 and the sleeve 17, at this time, the sleeve 17 penetrates the through hole 13, the contraction cavity 14 and the limiting cavity 15, the push column 19 is released, the two blocking balls 20 are lifted under the elastic return of the support spring 21, and the blocking balls 20 are clamped into the blocking hole 24, at this time, part of the blocking ball 20 abuts against the wall surface of the limiting cavity 15 through the blocking hole 24, at this time, the sleeve 17 cannot be pulled up, and the fixing mechanism synchronously fixes the joint 10, the differential nut 11 and the light guide extension pipe 1.

[0032] It can be understood that the utility model is described through some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.

Claims

1. A differential connection structure of a laser light guide arm, characterized by comprising: The utility model provides a kind of light guide joint, including Joint (10), the right side of the joint (10) is equipped with differential nut (11), the inner cavity right side of the joint (10) is equipped with light guide extension pipe (12), the light guide extension pipe (12) is sleeved in the inner cavity of differential nut (11); Fixing mechanism, the fixing mechanism is movably arranged in differential nut (11), the fixing mechanism is symmetrically provided with two groups, two groups the fixing mechanism is located at the two sides of differential nut (11) respectively, the fixing mechanism includes rubber ring (16), sleeve (17), push column (19) and plug ball (20), the rubber ring (16) is fixedly arranged on the inner wall of the right side of differential nut (11), the sleeve (17) is elastically arranged in differential nut (11), the push column (19) is elastically arranged in sleeve (17), the plug ball (20) is movably arranged between sleeve (17) and push column (19).

2. The differential connection structure of a laser light guide arm according to claim 1, characterized by The inside of the joint (10) is symmetrically provided with a cylindrical through hole (13), the through hole (13) penetrates the joint (10), the inside of the differential nut (11) is symmetrically provided with a T-shaped contraction cavity (14), the contraction cavity (14) penetrates the differential nut (11), the left side wall of the light guide extension pipe (12) is symmetrically provided with a circular truncated cone-shaped limiting cavity (15), the through hole (13), the contraction cavity (14) and the limiting cavity (15) are located on the same horizontal line and coaxially arranged, the through hole (13), the contraction cavity (14) and the limiting cavity (15) are provided with the same fixing mechanism.

3. The differential connection structure of a laser light guide arm according to claim 2, characterized by The sleeve (17) is Y-shaped cylinder, the sleeve (17) penetrates the through hole (13), the contraction cavity (14) and the limiting cavity (15), the limiting plate (23) is fixedly arranged on the outer side wall of the sleeve (17), the through hole (13) is limited and locked by the limiting plate (23), the push column (19) is fixedly arranged between the limiting plate (23) and the contraction cavity (14), the limiting plate (23) and the contraction cavity (14) are elastically connected by the contraction spring (18).

4. The differential connection structure of a laser light guide arm according to claim 2, characterized by The push column (19) is a nail-shaped column, and the push column (19) movably penetrates in the sleeve (17).

5. The differential connection structure of a laser light guide arm according to claim 4, wherein The inner curved surface of the sleeve (17) is provided with a ring of nail-shaped grooves, the nail-shaped grooves correspond to the shape of the push column (19), the nail-shaped grooves and the push column (19) are fixedly provided with support springs (21), and the nail-shaped grooves elastically connect the push column (19) through the support springs (21).

6. The differential connection structure of a laser light guide arm according to claim 3, wherein The bottom end of the push column (19) is provided with a ring-shaped slot (22) with a trapezoidal cross section, two plug balls (20) are slidingly arranged between the ring-shaped slot (22) and the sleeve (17), and the two plug balls (20) are symmetrically arranged on the two sides of the ring-shaped slot (22). The sleeve (17) and the push column (19) are locked in the limiting cavity (15) through the plug balls (20).

7. The differential connection structure of a laser light guide arm according to claim 1, wherein The bottom end of the sleeve (17) is symmetrically provided with a plug hole (24), the plug hole (24) corresponds to the shape of the plug ball (20), the plug ball (20) is movably arranged in the plug hole (24), and the plug ball (20) abuts between the limiting cavity (15) and the sleeve (17) by penetrating the plug hole (24).

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