Double-spherical-surface universal flexible linking device

Abstract

The utility model discloses a bispherical universal flexible linking device, which comprises a first shell, a first upper movable shaft, a first lower movable shaft and a first compression spring, the first shell is provided with a cavity, a first via hole arranged at one end of the first shell and a second via hole arranged at the other end of the first shell, the first upper movable shaft penetrates through the first via hole, the first lower movable shaft penetrates through the second via hole, one end of the first compression spring abuts against the annular face of the first lower movable shaft, and the other end of the first compression spring abuts against the edge of an inner hole opening of the second via hole. The double-spherical-surface universal flexible linking device further comprises a first spherical surface arranged at the inner end of the first upper movable shaft and a second spherical surface arranged at the inner end of the first lower movable shaft, and the first spherical surface and the second spherical surface can abut against each other at multiple positions according to requirements. The height of the linkage device can be flexibly adjusted, and the limitation of the fixed height of a traditional linkage device is changed through the design that the first spherical surface and the second spherical surface can abut against a plurality of positions.

Description

TECHNICAL FIELD

[0001] The utility model relates to a hydraulic linkage device, concretely relates to a double spherical surface universal flexible linkage device. BACKGROUND

[0002] As Figure 1 shown, Figure 1 is the structure diagram of the prior art linkage device.

[0003] Figure 1 In the linkage device, the second shell 1 has a cavity, a third through hole arranged at one end of the second shell 1, and a fourth through hole arranged at the other end of the second shell 1, wherein the second upper movable shaft 4 is arranged through the third through hole, the second lower movable shaft 2 is arranged through the fourth through hole, and one end of the second compression spring 3 abuts against the annular surface of the second lower movable shaft 2, and the other end of the second compression spring 3 abuts against the inner hole edge of the second through hole.

[0004] The inner end of the second upper movable shaft 4 is a flat plate, the inner end of the second lower movable shaft 2 is provided with a third spherical surface 5, and the third spherical surface 5 abuts against the flat plate.

[0005] From Figure 1 it can be seen that the abutting structure of the third spherical surface 5 and the flat plate is of fixed height, cannot be adjusted according to requirements, and can only be adjusted by replacing the radius of the third spherical surface 5 to achieve the extension distance of the second lower movable shaft 2.

[0006] Therefore, it is necessary to improve the traditional linkage device. INVENTION CONTENTS

[0007] The utility model discloses a double spherical surface universal flexible linkage device which can be flexibly adjusted and adapted to various use requirements, to solve the technical problem of the height of the existing linkage device.

[0008] To solve the above technical problems, the utility model discloses a double spherical surface universal flexible linkage device, which comprises a first shell, a first upper movable shaft, a first lower movable shaft and a first compression spring, the first shell has a cavity, a first through hole arranged at one end of the first shell and a second through hole arranged at the other end of the first shell, wherein the first upper movable shaft is arranged through the first through hole, the first lower movable shaft is arranged through the second through hole, and one end of the first compression spring abuts against the annular surface of the first lower movable shaft, and the other end of the first compression spring abuts against the inner hole edge of the second through hole.

[0009] The first spherical surface is arranged at the inner end of the first upper movable shaft.

[0010] A second spherical surface is arranged in the inner end of the first lower movable shaft, and the first spherical surface and the second spherical surface can abut at multiple positions according to requirements.

[0011] Further, the first spherical surface is a hemispherical surface structure.

[0012] Further, the second spherical surface is a hemispherical surface structure.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1. The linkage device can be highly flexibly adjusted: through the design that the first spherical surface and the second spherical surface can abut at multiple positions, the limitation of the fixed height of the traditional linkage device is changed, the extension distance of the first lower movable shaft can be flexibly adjusted according to actual use requirements, and the applicability of the linkage device is greatly improved.

[0015] 2. The linkage device is convenient to operate: without needing to replace components to adjust the height like the traditional device, the adjustment can be directly realized by using the multiple-position abutment of the double spherical surfaces, the operation process is simplified, and the use cost and maintenance difficulty are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the linkage device in the prior art.

[0017] Figure 2 It is a structural schematic view of the two spherical surface vertex abutment of the linkage device of the utility model.

[0018] Figure 3 It is a structural schematic view of the first eccentric abutment of the two spherical surfaces of the linkage device of the utility model.

[0019] Figure 4 It is a structural schematic view of the second eccentric abutment of the two spherical surfaces of the linkage device of the utility model.

[0020] In the drawings, the marks are as follows: second shell 1, second lower movable shaft 2, second compression spring 3, second upper movable shaft 4, third spherical surface 5, first shell 6, first spherical surface 7, second spherical surface 8, first compression spring 9, first lower movable shaft 10, and first upper movable shaft 11. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, so that the advantages and characteristics of the present utility model can be more easily understood by those skilled in the art, and the protection scope of the present utility model can be more clearly and definitely defined. Obviously, the embodiments described in the present utility model are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present utility model.

[0022] In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as there is no conflict between them.

[0023] Embodiment 1: The specific structure of the present utility model is as follows:

[0024] Please refer to the drawings Figures 2-4 The present utility model relates to a double-spherical-surface universal flexible linkage device, which comprises a first shell 6, a first upper movable shaft 11, a first lower movable shaft 10 and a first compression spring 9. The first shell 6 has a cavity, a first through hole arranged at one end of the first shell 6 and a second through hole arranged at the other end of the first shell 6. The first upper movable shaft 11 is arranged in the first through hole, the first lower movable shaft 10 is arranged in the second through hole, one end of the first compression spring 9 abuts against the annular surface of the first lower movable shaft 10, and the other end of the first compression spring 9 abuts against the inner hole edge of the second through hole. The double-spherical-surface universal flexible linkage device further comprises:

[0025] A first spherical surface 7 arranged at the inner end of the first upper movable shaft 11;

[0026] A second spherical surface 8 arranged at the inner end of the first lower movable shaft 10, wherein the first spherical surface 7 and the second spherical surface 8 can abut at multiple positions according to requirements.

[0027] The first spherical surface 7 is a hemispherical structure.

[0028] The second spherical surface 8 is a hemispherical structure.

[0029] Embodiment 2:

[0030] As Figure 2 shown, Figure 2 which is a structural schematic view of the abutment of the two spherical surfaces of the linkage device of the present utility model. Figure 2 In the embodiment, the first lower movable shaft 10 and the first upper movable shaft 11 are in the coaxial direction, and the vertex of the first spherical surface 7 abuts against the vertex of the second spherical surface 8.

[0031] Embodiment 3:

[0032] AsFigure 3 As shown, Figure 3 It is a first eccentric abutment structure diagram of two spherical surfaces of the linkage device.

[0033] Embodiment 4:

[0034] As Figure 4 As shown, Figure 4 It is a second eccentric abutment structure diagram of two spherical surfaces of the linkage device. Figure 4 In the second ball surface 8, the second ball surface 8 is offset from the inner end center of the first lower movable shaft 10.

[0035] In summary, by changing the abutment position of the first spherical surface 7 and the second spherical surface 8, different installation requirements are realized.

[0036] The linkage device can be highly flexible: through the design of the abutment of the first spherical surface and the second spherical surface at multiple positions, the limitation of the fixed height of the traditional linkage device is changed, and the extension distance of the first lower movable shaft can be adjusted according to the actual use requirement, greatly improving the applicability of the linkage device.

[0037] The linkage device is convenient to operate: without changing parts to adjust the height like traditional devices, the adjustment can be realized directly by using the multi-position abutment of the double spherical surfaces, simplifying the operation process and reducing the use cost and maintenance difficulty.

[0038] The above is only a preferred embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A double spherical universal flexible linkage device comprising a first housing (6), a first upper movable shaft (11), a first lower movable shaft (10) and a first compression spring (9), said first housing (6) having a cavity and a first through hole provided at one end of said first housing (6) and a second through hole provided at the other end of said first housing (6), wherein, The first upper movable shaft (11) is arranged in the first through hole, the first lower movable shaft (10) is arranged in the second through hole, one end of the first compression spring (9) abuts against the annular surface of the first lower movable shaft (10), and the other end of the first compression spring (9) abuts against the inner hole edge of the second through hole; characterized in that the double spherical surface universal flexible linkage device further comprises: A first spherical surface (7) arranged at the inner end of the first upper movable shaft (11); A second spherical surface (8) arranged at the inner end of the first lower movable shaft (10), and the first spherical surface (7) and the second spherical surface (8) can abut at multiple positions according to requirements.

2. A two-spherical-surface universal flexible linkage device according to claim 1, wherein, The first spherical surface (7) is a half spherical surface structure.

3. A two-spherical-surface universal flexible linkage device according to claim 1, wherein, The second spherical surface (8) is a half spherical surface structure.

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