Coupler adaptable to transmission shafts of various specifications

Abstract

The utility model belongs to the technical field of couplers, and particularly relates to a coupler adaptable to transmission shafts of various specifications, which comprises a connecting cylinder, a plurality of connecting rods and a plurality of connecting rods. The two adaptive cylinders are inserted into the corresponding insertion holes respectively, and slotted holes used for being connected with the transmission shaft in an inserted mode are formed in the adaptive cylinders; the two detachable clamping covers and the corresponding ends of the connecting cylinder are detachably installed in a clamped mode, an annular extrusion boss is arranged on the side, facing the connecting cylinder, of each detachable clamping cover, the annular extrusion bosses are suitable for being inserted between the adaptive cylinder and the connecting cylinder, the end of the adaptive cylinder is extruded to tension the transmission shaft inserted in the groove hole, and therefore the transmission shaft can be tightly clamped in the groove hole. According to the coupling capable of being adaptive to the transmission shafts of the various specifications, the adaptive cylinder of the coupling is arranged to be replaceable, and when the coupling is connected with the transmission shafts of the different specifications, the coupling can be connected with the transmission shafts only by inserting the adaptive cylinder with the slotted hole of the required specification into the inserting hole.

Description

Technical Field

[0001] The utility model belongs to the technical field of couplings, and in particular relates to a coupling that can be adapted to transmission shafts of various specifications. Background Art

[0002] A coupling is a transmission device that connects the output shaft at one end and the input shaft at the other end.

[0003] The drive shaft is generally circular, but in some special scenarios, there may be drive shafts with other polygonal shapes such as triangles and hexagons, and even the shapes of the output shaft and the input shaft are different. In this case, if the specifications of the coupling's socket cannot be changed, the connection cannot be made.

[0004] Therefore, how to solve the problem that the drive shaft cannot adjust the plug hole specifications according to the usage scenario is a technical problem that technical personnel in this field urgently need to solve.

[0005] It should be noted that the above information disclosed in this background technology section is only used to understand the background technology of the present application concept, and therefore, the above description is not considered to constitute information of the prior art. Utility Model Content

[0006] The embodiments of the present disclosure at least provide a coupling that can adapt to drive shafts of various specifications.

[0007] In the first aspect, the embodiments of the present disclosure provide a coupling that can be adapted to drive shafts of various specifications, comprising: a connecting cylinder, with plug-in holes respectively provided at both ends thereof; two adapting cylinders, respectively inserted into the corresponding plug-in holes, the adapting cylinders being provided with slots for plugging in the drive shafts; and two detachable card covers, which are respectively detachably engaged with the corresponding ends of the connecting cylinder, and the detachable card cover is provided with an annular extrusion boss on the side facing the connecting cylinder, and the annular extrusion boss is suitable for being inserted between the adapting cylinder and the connecting cylinder, and the drive shaft inserted in the slot is tensioned by squeezing the ends of the adapting cylinder.

[0008] In an optional embodiment, avoidance grooves are provided on both end surfaces of the connecting tube to allow the adapting tube to protrude from the plug-in hole.

[0009] In an optional embodiment, the cross-section of the plug-in hole is hexagonal, and the cross-section of the adapter cylinder is a hexagon that matches the plug-in hole; wherein the inner hole contour of the annular extrusion boss is a hexagon that matches the outer contour of the adapter cylinder, and the outer contour of the annular extrusion boss is a circle that matches the inner wall contour of the avoidance groove.

[0010] In an optional embodiment, the end portion of the adapter tube protruding from the insertion hole is made of a flexible material so as to press the transmission shaft inserted into the slot when under pressure.

[0011] In an optional embodiment, a relief hole is provided on the end surface of the detachable card cover; wherein the relief hole is hexagonal and is staggered with respect to the inner hole contour of the annular extrusion boss to press the adapter cylinder.

[0012] In an optional embodiment, the detachable card cover is further provided with an annular cover, which is located at the periphery of the annular extrusion boss; wherein when the detachable card cover is connected to the connecting cylinder, the annular cover is suitable for covering the end of the connecting cylinder.

[0013] On the second aspect, the embodiment of the present disclosure also provides a coupling that can be adapted to drive shafts of various specifications, comprising: a connecting cylinder, with plug-in holes at both ends thereof, and the plug-in holes are suitable for inserting corresponding adapter cylinders according to the specifications of the drive shaft; and two detachable card covers, which are respectively engaged with the corresponding ends of the connecting cylinder; wherein the detachable card cover is provided with an annular extrusion boss on the side facing the connecting cylinder; the annular extrusion boss is suitable for being inserted between the adapter cylinder and the connecting cylinder, and pressing the drive shaft by squeezing the end of the adapter cylinder.

[0014] In an optional embodiment, the cross-section of the plug-in hole is hexagonal; wherein the inner hole contour of the annular extrusion boss is a hexagon that matches the outer contour of the adapter cylinder, and the outer contour of the annular extrusion boss is a circle that matches the inner wall contour of the avoidance groove.

[0015] In an optional embodiment, a relief hole is provided on the end surface of the detachable card cover; wherein the relief hole is hexagonal and is staggered with respect to the inner hole contour of the annular extrusion boss to press the adapter cylinder.

[0016] The beneficial effect of the present invention is that the coupling, which can adapt to drive shafts of various specifications, sets the adapter sleeve of the coupling to be replaceable. When connecting with drive shafts of different specifications, it is only necessary to insert the adapter sleeve with slots of the required specifications into the plug-in hole to achieve connection with the drive shaft. At the same time, the adapter sleeves at both ends of the connecting sleeve can be replaced independently, so that transmission can be achieved when the specifications of the output shaft and the input shaft are different.

[0017] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The objectives and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description, claims and drawings.

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are specifically cited herein and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 A schematic cross-sectional view of a coupling adapted for drive shafts of various specifications provided in an embodiment of the present disclosure;

[0021] Figure 2 A schematic structural diagram of an avoidance groove provided in an embodiment of the present disclosure;

[0022] Figure 3 A schematic structural diagram of an adapter cylinder with a hexagonal slot provided in an embodiment of the present disclosure;

[0023] Figure 4 A schematic structural diagram of a detachable card cover provided in an embodiment of the present disclosure;

[0024] Figure 5 A schematic structural diagram of an adapter cylinder with a triangular slot provided in an embodiment of the present disclosure.

[0025] In the picture:

[0026] Connecting tube 1, plug hole 11, avoidance groove 12;

[0027] Adapter tube 2, slot 21;

[0028] Removable card cover 3, annular extrusion boss 31, avoidance hole 32, protrusion 321, annular cover 33. DETAILED DESCRIPTION

[0029] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0030] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. In addition, in the drawings, the thickness of components may be exaggerated or reduced in order to effectively describe the technical content.

[0031] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0032] like Figure 1 As shown, at least one embodiment provides a coupling that can adapt to drive shafts of various specifications, comprising: a connecting cylinder 1, with plug-in holes 11 at both ends thereof; two adapter cylinders 2, respectively inserted into the corresponding plug-in holes 11, the adapter cylinder 2 having slots 21 for plugging in the drive shaft; and two detachable card covers 3, which are detachably engaged with the corresponding ends of the connecting cylinder 1, and the detachable card cover 3 is provided with an annular extrusion boss 31 on the side facing the connecting cylinder 1, and the annular extrusion boss 31 is suitable for being inserted between the adapter cylinder 2 and the connecting cylinder 1, and the drive shaft inserted in the slot 21 is tensioned by squeezing the end of the adapter cylinder 2.

[0033] Specifically, when in use, first select an adapter cylinder 2 with a slot 21 that matches the specifications of the drive shaft, then insert the adapter cylinder 2 into the plug-in hole 11, and then insert the drive shaft into the slot 21 of the adapter cylinder 2, and finally engage the detachable card cover 3 on the drive shaft with the end of the connecting cylinder 1, and squeeze the end of the adapter cylinder 2 through the annular extrusion boss 31 on the detachable card cover 3 to fasten the coupling to the drive shaft, thereby preventing axial movement of the coupling.

[0034] In this embodiment, the adapter sleeve 2 of the coupling is set to be replaceable. When connecting to drive shafts of different specifications, it is only necessary to insert the adapter sleeve 2 with the slot hole 21 of the required specification into the plug-in hole 11 to achieve connection with the drive shaft. At the same time, the adapter sleeves 2 at both ends of the connecting sleeve 1 can be replaced independently, so that transmission can be achieved when the specifications of the output shaft and the input shaft are different.

[0035] In one of the application scenarios, such as Figure 3 As shown, the cross-sectional shape of the slot 21 is hexagonal.

[0036] In another application scenario, such as Figure 5 As shown, the cross-sectional shape of the slot 21 is a triangle.

[0037] like Figure 2 、 Figure 3 As shown, in some embodiments, avoidance grooves 12 are provided on both end surfaces of the connecting tube 1 to allow the adapter tube 2 to protrude from the plug hole 11; at the same time, the cross-section of the plug hole 11 is hexagonal, and the cross-section of the adapter tube 2 is a hexagon that matches the plug hole 11, thereby facilitating the insertion of the adapter tube 2 into the plug hole 11 and preventing the adapter tube 2 from rotating after being subjected to force.

[0038] like Figure 3 、 Figure 4As shown, in some embodiments, the inner hole contour of the annular extrusion boss 31 is a hexagon that matches the outer contour of the adapter cylinder 2 , and the outer contour of the annular extrusion boss 31 is a circle that matches the inner wall contour of the avoidance groove 12 .

[0039] In this embodiment, the function of the annular extrusion boss 31 is to be inserted into the gap between the adapting cylinder 2 and the connecting cylinder 1 , thereby extruding the adapting cylinder 2 so that the adapting cylinder 2 is fastened to the transmission shaft.

[0040] In some embodiments, the end portion of the adapter tube 2 protruding from the insertion hole 11 is made of a flexible material so as to press the transmission shaft inserted into the slot 21 when under pressure.

[0041] In this embodiment, the flexible material can be but is not limited to rubber; when the size of the annular extrusion boss 31 is slightly larger than the gap between the adapter cylinder 2 and the connecting cylinder 1, wherein the annular extrusion boss 31 and the connecting cylinder 1 are both made of hard materials, when the annular extrusion boss 31 is inserted, the end of the adapter cylinder 2 made of flexible material will be squeezed on the drive shaft by force, thereby preventing axial movement of the coupling.

[0042] like Figure 4 As shown, in some embodiments, a relief hole 32 is provided on the end face of the detachable card cover 3 to facilitate the insertion of the transmission shaft; wherein the relief hole 32 is hexagonal and is staggered with the inner hole contour of the annular extrusion boss 31, so that the adapter tube 2 can be pressed by the protrusion 321 protruding from the inner hole of the annular extrusion boss 31.

[0043] In some embodiments, an annular cover 33 is also provided on the detachable card cover 3, and the annular cover 33 is located on the periphery of the annular extrusion boss 31; when the detachable card cover 3 is connected to the connecting tube 1, the annular cover 33 is suitable for covering the end of the connecting tube 1, so as to facilitate the installation and removal of the detachable card cover 3.

[0044] In some embodiments, the outer wall of the annular cover 33 may be provided with anti-slip grooves.

[0045] At least one embodiment also provides a coupling that can be adapted to drive shafts of various specifications, comprising: a connecting cylinder 1, with plug-in holes 11 at both ends thereof, the plug-in holes 11 being suitable for inserting corresponding adapter cylinders 2 according to the specifications of the drive shaft; and two detachable card covers 3, respectively engaged with the corresponding ends of the connecting cylinder 1; wherein the detachable card cover 3 is provided with an annular extrusion boss 31 on the side facing the connecting cylinder 1; the annular extrusion boss 31 is suitable for being inserted between the adapter cylinder 2 and the connecting cylinder 1, and pressing the drive shaft by squeezing the end of the adapter cylinder 2.

[0046] In some embodiments, the cross-section of the plug hole 11 is hexagonal; wherein the inner hole contour of the annular extrusion boss 31 is a hexagon that matches the outer contour of the adapter cylinder 2, and the outer contour of the annular extrusion boss 31 is a circle that matches the inner wall contour of the avoidance groove 12.

[0047] In some embodiments, a relief hole 32 is provided on the end surface of the detachable card cover 3 ; the relief hole 32 is hexagonal and is offset from the inner hole profile of the annular extrusion boss 31 to press the adapter tube 2 .

[0048] To sum up, the coupling that can adapt to drive shafts of various specifications sets the adapter sleeve 2 of the coupling to be replaceable. When connecting with drive shafts of different specifications, it is only necessary to insert the adapter sleeve 2 with the slot hole 21 of the required specification into the plug-in hole 11 to achieve connection with the drive shaft. At the same time, the adapter sleeves 2 at both ends of the connecting sleeve 1 can be replaced independently, so that transmission can be achieved when the specifications of the output shaft and the input shaft are different.

[0049] Herein, when it is mentioned that a first component is located on a second component, this may mean that the first component may be directly formed on the second component or a third component may be interposed between the first component and the second component.

[0050] As used herein, when an element or layer is referred to as being "located on," "engaged to," "connected to," "attached to," or "coupled to" another element or layer, it may be directly located on, engaged, connected, attached to, or coupled to the other element or layer, or there may be intervening elements or layers. Conversely, when an element is referred to as being "directly on," "directly engaged to," "directly connected to," "directly attached to," or "directly coupled to" another element or layer, there may be no intervening elements or layers. Other words used to describe the relationship between elements should be interpreted in a similar manner (e.g., "between" versus "directly between," "adjacent" versus "directly adjacent," etc.). As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0051] Herein, example embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as "at least one of..." when following a list of elements modify the entire list of elements, rather than modifying individual elements in the list. For example, the expression "at least one of a, b, and c" should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0052] The terms used herein are only used to describe specific exemplary configurations and are not intended to be limiting. As used herein, the singular articles "a", "an" and "the" may also be intended to include plural forms, unless otherwise clearly indicated herein. The terms "comprise", "include" and "have" are inclusive and therefore specify the presence of features, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components and / or combinations thereof. The method steps, processes and operations described herein should not be interpreted as necessarily requiring them to be performed in the particular order discussed or shown, unless specifically identified as an execution order. Additional or alternative steps may be adopted.

[0053] As used herein, the phrases "in one embodiment," "according to one embodiment," "in some embodiments," and the like generally refer to the fact that the particular feature, structure, or characteristic following the phrase may be included in at least one embodiment of the present disclosure. Thus, a particular feature, structure, or characteristic may be included in more than one embodiment of the present disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms "example," "exemplary," and the like are used to "serve as an example, instance, or illustration." Any implementation, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations, aspects, or designs. Instead, the use of the terms "example," "exemplary," and the like is intended to present concepts in a concrete manner.

[0054] In the description of the embodiments of the present invention, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0055] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, terms such as "first", "second" and other numerical terms do not imply an order or sequence when used herein unless expressly indicated above. Therefore, without departing from the teachings of the example embodiments, the first element, component, region, layer or section discussed above may be referred to as a second element, component, region, layer or section.

[0056] Spatially relative terms, such as "inside," "outside," "below," "beneath," "down," "above," "on," etc., may be used herein to describe the relationship of one element or feature to another element or feature as illustrated in the figures. In addition to the orientations depicted in the figures, spatially relative terms may be intended to encompass different orientations of the device in use or operation. For example, if the device in the figures is flipped, an element described as being "below" or "below" other elements or features will be oriented to be "above" the other elements or features. Thus, the example term "below" may encompass both above and below orientations. The device may be oriented otherwise (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0057] In the above discussion, unless otherwise indicated, the terms "about," "approximately," "substantially," etc., when used to describe a numerical value, mean a variation of + / - 10% of the value.

[0058] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A coupling that can adapt to drive shafts of various specifications, characterized in that: include: A connecting tube (1) having plug holes (11) at both ends; Two adapter cylinders (2) are respectively inserted into corresponding plug holes (11), and the adapter cylinders (2) are provided with slots (21) for plugging in the transmission shaft; and Two detachable card covers (3) are detachably engaged with corresponding ends of the connecting cylinder (1), and an annular extrusion boss (31) is provided on the side of the detachable card cover (3) facing the connecting cylinder (1). The annular extrusion boss (31) is suitable for being inserted between the adapter cylinder (2) and the connecting cylinder (1) to tighten the transmission shaft inserted in the slot hole (21) by squeezing the end of the adapter cylinder (2).

2. The coupling adaptable to transmission shafts of various specifications as claimed in claim 1, characterized in that: Both end surfaces of the connecting tube (1) are provided with avoidance grooves (12) to allow the adapting tube (2) to protrude from the plug-in hole (11).

3. The coupling adaptable to transmission shafts of various specifications as claimed in claim 2, characterized in that: The cross section of the plug hole (11) is hexagonal, and the cross section of the adapter cylinder (2) is hexagonal to match the plug hole (11); wherein The inner hole profile of the annular extrusion boss (31) is a hexagon that matches the outer profile of the adapter cylinder (2), and the outer profile of the annular extrusion boss (31) is a circle that matches the inner wall profile of the avoidance groove (12).

4. The coupling adaptable to transmission shafts of various specifications as claimed in claim 3, characterized in that: The end portion of the adapter cylinder (2) protruding from the plug-in hole (11) is made of a flexible material so as to press the transmission shaft inserted into the slot hole (21) when under pressure.

5. The coupling adaptable to transmission shafts of various specifications as claimed in claim 4, characterized in that: The end surface of the detachable card cover (3) is provided with an avoidance hole (32); wherein The avoidance hole (32) is hexagonal and is offset from the inner hole profile of the annular extrusion boss (31) to press the adapter cylinder (2).

6. The coupling adaptable to transmission shafts of various specifications as claimed in claim 5, characterized in that: The detachable card cover (3) is further provided with an annular cover (33), and the annular cover (33) is located on the periphery of the annular extrusion boss (31); in When the detachable card cover (3) is connected to the connecting cylinder (1), the annular cover (33) is suitable for covering the end of the connecting cylinder (1).

7. A coupling that can adapt to drive shafts of various specifications, characterized in that: include: A connecting cylinder (1) having plug holes (11) at both ends thereof, wherein the plug holes (11) are suitable for inserting corresponding adapter cylinders (2) according to the specifications of the transmission shaft; and Two detachable card covers (3) are detachably engaged with corresponding ends of the connecting tube (1); wherein An annular extrusion boss (31) is provided on the side of the detachable card cover (3) facing the connecting cylinder (1); The annular extrusion boss (31) is suitable for being inserted between the adapter cylinder (2) and the connecting cylinder (1), and compressing the transmission shaft by extruding the end of the adapter cylinder (2).

8. The coupling adaptable to transmission shafts of various specifications as claimed in claim 7, characterized in that: The cross section of the plug hole (11) is hexagonal; wherein The inner hole profile of the annular extrusion boss (31) is a hexagon that matches the outer profile of the adapter cylinder (2), and the outer profile of the annular extrusion boss (31) is a circle that matches the inner wall profile of the avoidance groove (12).

9. The coupling adaptable to transmission shafts of various specifications as claimed in claim 8, characterized in that: The end surface of the detachable card cover (3) is provided with an avoidance hole (32); wherein The avoidance hole (32) is hexagonal and is offset from the inner hole profile of the annular extrusion boss (31) to press the adapter cylinder (2).

Images