Improved driving rod

Abstract

The utility model relates to a connecting shaft, in particular to an improved driving rod which comprises a connecting shaft body, the connecting shaft body is provided with a first matching end and an extending end, the first matching end is connected with the extending end, the outer wall of the first matching end is further provided with a plurality of first protrusions which are evenly distributed, and the first protrusions are arranged on the outer wall of the connecting shaft body. The extension end is provided with a plurality of first protrusions, the first protrusions jointly form an outer tooth, the extension end is further provided with an annular groove, and the annular groove is close to the outer tooth; and the two pressed parts are both arranged in the annular groove, and the sides, deviating from each other, of the two pressed parts are each provided with an arc-shaped pressed face. According to the utility model, the advantages of convenience in use, firmness in matching and high practicability can be realized by effectively utilizing the self structural configuration.

Description

Technical Field

[0001] The present application relates to a connecting shaft, and more particularly to an improved driving rod. Background Art

[0002] Among them Figure 1 The first mating end 11 further has a fixing hole 1101 at one end away from the extending end 12, that is, when the external part is mated with the first mating end 11, the user can fit the external bolt with the fixing hole 1101 to limit the position of the external part. However, the structure of the connecting shaft part of our company is as follows. Figure 4 As shown, in actual application, when the connecting shaft structure is used for a long time, its external bolts are likely to loosen, causing the external parts to move slightly on the connecting shaft. Therefore, there is a need to provide an improved driving rod that is easy to use, reliable in fit, and highly practical. Utility Model Content

[0003] The main purpose of the present application is to provide an improved driving rod, wherein the improved driving rod can effectively utilize its own structural configuration to achieve the advantages of reliable matching and high practicality.

[0004] Another object of the present application is to provide an improved drive rod, wherein the improved drive rod includes a connecting shaft body and two pressure-bearing parts, the connecting shaft body has a first mating end and an extension end, the first mating end is connected to the extension end, and the outer wall of the first mating end also has a plurality of evenly distributed first protrusions, and the plurality of first protrusions together form an external tooth, and the extension end also has an annular groove, the annular groove is close to the external tooth, the two pressure-bearing parts are both placed in the annular groove, and the two pressure-bearing parts have an arc-shaped pressure surface on the side facing away from each other, wherein the external part can cooperate with the first mating end, and the outer wall of the external part can squeeze the arc-shaped pressure surface to deform the arc-shaped pressure surface, thereby achieving an interference fit between the external part and the connecting shaft body.

[0005] Another object of the present application is to provide an improved driving rod, wherein the improved driving rod has a simple structure, is easy to operate, does not involve complicated manufacturing processes and expensive materials, has high economy, and is easy to promote and use.

[0006] In order to achieve at least one of the above-mentioned invention objectives, the present application provides an improved driving rod, wherein the improved driving rod comprises:

[0007] A connecting shaft body, the connecting shaft body having a first mating end and an extending end, the first mating end being connected to the extending end, and the outer wall of the first mating end further having a plurality of evenly distributed first protrusions, and the plurality of first protrusions together forming an external tooth, and the extending end further having an annular groove, the annular groove being close to the external tooth; and

[0008] Two pressure-bearing parts are both placed in the annular groove, and the two pressure-bearing parts have an arc-shaped pressure-bearing surface on the sides facing away from each other.

[0009] In one or more embodiments of the present application, the connecting shaft body also has an annular connecting end and a second mating end, the end of the extension end facing away from the first mating end is connected to the annular connecting end, and the end of the annular connecting end facing away from the extension end is connected to the second mating end.

[0010] In one or more embodiments of the present application, the end of the second mating end facing away from the annular connecting end has a notch with an opening.

[0011] In one or more embodiments of the present application, the annular connecting end has a plurality of evenly distributed connecting holes, the plurality of connecting holes all penetrate the annular connecting end, and the plurality of connecting holes are arranged in an annular shape.

[0012] In one or more embodiments of the present application, the bottom wall forming the annular groove further has two arc-shaped positioning grooves arranged opposite to each other, the two arc-shaped positioning grooves are both connected to the annular groove, and the two pressure-bearing parts respectively cooperate with the two arc-shaped positioning grooves.

[0013] In one or more embodiments of the present application, the two pressure-bearing members are arc-shaped members, and the arc-shaped pressure-bearing surface is also located on a side of the pressure-bearing member close to the external teeth.

[0014] In one or more embodiments of the present application, each of the pressure-bearing members further has an insertion end on a side away from the arc-shaped pressure-bearing surface, the insertion end is integrally formed with the pressure-bearing member, and the insertion end can be placed in the arc-shaped positioning groove.

[0015] In one or more embodiments of the present application, each of the arc-shaped pressure surfaces has a plane and an inner concave surface, the plane is connected to the inner concave surface, and the plane is also close to the external tooth and flush with the bottom wall of the tooth groove of the external tooth. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] These and / or other aspects and advantages of the present application will become clearer and easier to understand from the following detailed description of the embodiments of the present application in conjunction with the accompanying drawings, in which:

[0017] Figure 1 The figure shows a schematic structural diagram of an improved driving rod.

[0018] Figure 2 The figure shows a schematic side structure diagram of an improved driving rod.

[0019] Figure 3 Pictured Figure 1 A is an enlarged view of the middle image.

[0020] Figure 4 The figure shows a structural schematic diagram of an existing connecting shaft. DETAILED DESCRIPTION

[0021] The terms and words used in the following specification and claims are not limited to the literal meanings, but are merely used by the inventor to enable a clear and consistent understanding of the present application. Therefore, it will be apparent to those skilled in the art that the following description of various embodiments of the present application is provided for illustrative purposes only and not for the purpose of limiting the present application as defined by the appended claims and their equivalents.

[0022] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0023] Although ordinals such as "first," "second," and the like will be used to describe various components, those components are not limited herein. The term is used only to distinguish one component from another. For example, a first component may be referred to as a second component, and likewise, a second component may be referred to as a first component without departing from the teachings of the utility model concept. The term "and / or" as used herein includes any and all combinations of one or more associated listed items.

[0024] The terms used herein are only used for the purpose of describing various embodiments and are not intended to be limiting. As used herein, singular forms are intended to also include plural forms, unless the context clearly indicates an exception. In addition, it will be understood that the terms "including" and / or "having" when used in this specification specify the presence of the described features, numbers, steps, operations, components, elements or combinations thereof, without excluding the presence or addition of one or more other features, numbers, steps, operations, components, elements or groups thereof.

[0025] Schematic modified drive rod

[0026] refer to Figures 1 to 3 According to an improved driving rod of a preferred embodiment of the utility model, it should be noted that the structure of the improved driving rod is as follows Figure 1As shown, it includes a connecting shaft body 10, one end of which is arranged with an external driving component, that is, the external driving component can be a driving motor, that is, when the driving motor is running, the connecting shaft body 10 rotates synchronously.

[0027] Specifically, the connecting shaft body 10 has a first mating end 11, an extension end 12, an annular connection end 13 and a second mating end 14, one end of the first mating end 11 is connected to the extension end 12, the end of the extension end 12 away from the first mating end 11 is connected to the annular connection end 13, and the end of the annular connection end 13 away from the extension end 12 is connected to the second mating end 14. It is worth mentioning that the second mating end 14 is configured to be mated with an external drive component, that is, the above-mentioned external drive component can be implemented as a drive motor and a synchronous wheel, that is, the end of the second mating end 14 away from the annular connection end 13 has a notch 1401 with an opening, and the external synchronous wheel is mated with the external synchronous wheel through a key connection, and when the external drive motor is in operation, the external synchronous wheel drives the second mating end 14 to rotate.

[0028] Specifically, the first mating end 11, the extension end 12, the annular connecting end 13 and the second mating end 14 are formed synchronously. It should be noted that the wall surface of the extension end 12 close to the first mating end 11 also has an annular groove 1201, that is, the annular groove 1201 is located between the first mating end 11 and the extension end 12. The outer wall of the first mating end 11 also has a plurality of evenly distributed first protrusions 111, and the plurality of first protrusions 111 together form an external tooth. Specifically, the connecting shaft body 10 is a spline shaft, and it should be understood by those skilled in the art that the first mating end 11 is provided to cooperate with other external parts (sleeve connection), and the external parts have an internal tooth, and the external tooth cooperates with the internal tooth, so that when the connecting shaft body 10 rotates, the external parts rotate synchronously. Specifically, it should be understood by those skilled in the art that the annular groove 1201 can be a backing groove to facilitate the user to process the external tooth.

[0029] Furthermore, the structure of the annular connecting end 13 is as follows: Figure 3 As shown, the annular connection end 13 has a plurality of evenly distributed connection holes 1301, and the plurality of connection holes 1301 all penetrate the annular connection end 13, and the plurality of connection holes 1301 are arranged in an annular shape. It should also be noted that the annular connection end 13 is configured to be compatible with other external components.

[0030] It is worth mentioning that the bottom wall forming the annular groove 1201 also has two arc-shaped positioning grooves 1202 arranged opposite to each other, and both of the arc-shaped positioning grooves 1202 are connected to the annular groove 1201 .

[0031] Specifically, the improved drive rod further comprises two pressure-bearing members 20, the two pressure-bearing members 20 respectively cooperate with the two arc-shaped positioning grooves 1202, and the ends of the two pressure-bearing members 20 which are away from each other also have an arc-shaped pressure-bearing surface 21. Specifically, the pressure-bearing member 20 is also an arc-shaped member. In addition, the arc-shaped pressure-bearing surface 21 is also located on the side of the pressure-bearing member 20 close to the outer teeth.

[0032] Furthermore, each of the pressure-bearing members 20 has an insertion end 22 on the side away from the arc-shaped pressure-bearing surface 21, and the insertion end 22 is integrally formed with the pressure-bearing member 20, and the insertion end 22 can be placed in the arc-shaped positioning groove 1202 to limit the position of the limit member. It should also be noted that the wall surface forming the annular groove 1201 and away from the external teeth is in contact with one end of the pressure-bearing member 20, and the other end of the pressure-bearing member 20 is spaced a predetermined distance from the wall surface forming the annular groove 1201 and close to the external teeth, that is, a space for solder is reserved for subsequent welding, so that the user can fix the pressure-bearing member 20 in the annular groove 1201 by welding. In addition, the side of the pressure-bearing member 20 away from the external teeth can also be welded to the wall surface forming the annular groove 1201.

[0033] Furthermore, the arc-shaped pressure-bearing surface 21 is an inwardly curved arc surface, and each of the arc-shaped pressure-bearing surfaces 21 has a plane 211 and an inner concave surface 212, the plane 211 is connected to the inner concave surface 212, and the plane 211 is also close to the outer tooth and is flush with the bottom wall of the tooth groove of the outer tooth, as shown in FIG. Figure 3 It should be noted that the external teeth cooperate with the internal teeth of the external part, that is, when the external part or the connecting shaft body 10 is subjected to an external force and moves a predetermined distance toward the external teeth or the internal teeth, the external teeth cooperate with the internal teeth, and at the same time, the tooth top of the internal teeth passes through the plane 211 and squeezes the inner concave surface 212, so that the inner concave surface 212 is deformed, thereby producing an interference fit effect with the first mating end 11 and the external part.

[0034] It should also be noted that the first mating end 11 further has a fixing hole 1101 at one end away from the extending end 12, that is, when the external part is mated with the first mating end 11, the user can fit the external bolt with the fixing hole 1101 to limit the position of the external part. However, the structure of the connecting shaft part of our company is as follows. Figure 4 As shown, in actual application, when the connecting shaft structure is used for too long, its external bolts are likely to loosen, causing the external parts to move slightly in the connecting shaft. Therefore, in order to solve this problem, our company has designed the above-mentioned improved drive rod structure.

[0035] In summary, the improved driving rod based on the embodiment of the present application is explained, which provides the improved driving rod with advantages such as easy use, secure fit, and high practicality.

[0036] It is worth mentioning that in the embodiment of the present application, the improved driving rod has a simple structure, does not involve complex manufacturing processes and expensive materials, and has high economic efficiency. At the same time, for manufacturers, the improved driving rod provided by the present application is easy to produce and has low cost, which is more conducive to controlling production costs and further facilitating product promotion and use.

[0037] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. An improved driving rod, characterized in that: The improved driving rod comprises: A connecting shaft body, the connecting shaft body having a first mating end and an extending end, the first mating end being connected to the extending end, and the outer wall of the first mating end further having a plurality of evenly distributed first protrusions, and the plurality of first protrusions together forming an external tooth, and the extending end further having an annular groove, the annular groove being close to the external tooth; and Two pressure-bearing parts are both placed in the annular groove, and the two pressure-bearing parts have an arc-shaped pressure-bearing surface on the sides facing away from each other.

2. An improved driving rod according to claim 1, wherein the connecting shaft body also has an annular connecting end and a second mating end, an end of the extending end facing away from the first mating end is connected to the annular connecting end, and an end of the annular connecting end facing away from the extending end is connected to the second mating end.

3. The improved driving rod according to claim 2, wherein the end of the second mating end facing away from the annular connecting end has a notch with an opening.

4. The improved driving rod according to claim 3, wherein the annular connecting end has a plurality of evenly distributed connecting holes, the plurality of connecting holes all penetrate the annular connecting end, and the plurality of connecting holes are arranged in an annular shape.

5. The improved driving rod according to claim 4, wherein the bottom wall forming the annular groove also has two arc-shaped positioning grooves arranged opposite to each other, the two arc-shaped positioning grooves are both connected to the annular groove, and the two pressure-bearing parts are respectively matched with the two arc-shaped positioning grooves.

6. The improved driving rod according to claim 5, wherein the two pressure-bearing members are arc-shaped members, and the arc-shaped pressure-bearing surface is also located on a side of the pressure-bearing member close to the external teeth.

7. The improved driving rod according to claim 6, wherein each of the pressure-bearing members further has an insertion end on a side away from the arc-shaped pressure-bearing surface, the insertion end is integrally formed with the pressure-bearing member, and the insertion end can be placed in the arc-shaped positioning groove.

8. The improved drive rod according to claim 7, wherein each of the arc-shaped pressure-bearing surfaces has a flat surface and an inner concave surface, the flat surface is connected to the inner concave surface, and the flat surface is also close to the outer teeth and is flush with the bottom wall of the tooth groove of the outer teeth.

Images