CN210600080U - Screw rod - Google Patents
Screw rod Download PDFInfo
- Publication number
- CN210600080U CN210600080U CN201921431865.8U CN201921431865U CN210600080U CN 210600080 U CN210600080 U CN 210600080U CN 201921431865 U CN201921431865 U CN 201921431865U CN 210600080 U CN210600080 U CN 210600080U
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- connecting end
- screw rod
- main body
- wall
- groove
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Abstract
The utility model provides a screw rod, which comprises a screw rod main body and a positioning assembly, wherein the screw rod main body comprises a thread screw rod and a first connecting end, the outer wall of the thread screw rod is provided with trapezoidal threads, one end of the thread screw rod is integrally formed with the first connecting end, the other end of the thread screw rod is provided with a groove, the outer wall of the first connecting end is provided with fine thread external threads, and the inner wall of the groove is provided with fine thread internal threads; the positioning assembly comprises a second connecting end, a positioning piece and a rotating piece, the second connecting end, the positioning piece and the rotating piece are sequentially and integrally formed, the outer wall of the second connecting end is provided with a fine thread, and the first connecting end and the second connecting end are matched and connected with the groove; the positioning assembly is arranged, so that not only can components driven on the screw rod main body be prevented from running out of the screw rod main body, but also the screw rod main body can be controlled to be driven on the components; the first connecting end and the second connecting end are connected with the grooves in a matched mode, so that the plurality of lead screw main bodies are connected, the overall length is flexibly adjusted, and the requirements for lead screws with different lengths are met.
Description
Technical Field
The utility model belongs to the technical field of mechanical transmission spare part technique and specifically relates to a lead screw.
Background
The screw rod is mainly used in a transmission and position adjusting device, compared with a ball screw, the screw rod has the advantages of low cost, large bearing capacity, compact and simple structure, self-locking and the like although the screw rod has the defects of large friction force, low transmission efficiency, high relative abrasion and the like, and is widely applied to various automobiles, medical equipment and other equipment.
In actual use, different occasions often need lead screws with different specifications, and the variety is various, for example, lead screws with different length specifications need, so that a lead screw which can be suitable for different length specifications is needed for preparing from time to time.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned problem that need a lead screw that can be fit for different length specifications with the needs from time to time, the utility model provides a lead screw.
In order to achieve the above purpose, the utility model discloses a realize through following technical scheme:
a lead screw comprises a lead screw body and a positioning assembly, wherein the lead screw body comprises a threaded lead screw and a first connecting end, trapezoidal threads are arranged on the outer wall of the threaded lead screw, one end of the threaded lead screw and the first connecting end are integrally formed, a groove is formed in the other end of the threaded lead screw, fine-tooth external threads are arranged on the outer wall of the first connecting end, and fine-tooth internal threads are arranged on the inner wall of the groove; the positioning assembly comprises a second connecting end, a positioning piece and a rotating piece, the second connecting end, the positioning piece and the rotating piece are sequentially and integrally formed, fine tooth external threads are arranged on the outer wall of the second connecting end, and the first connecting end and the second connecting end are connected with the grooves in a matched mode.
Furthermore, the outer wall of the rotating piece is provided with reticulate patterns; the friction force is increased, and the screw rod main body is convenient to manually rotate.
Further, a screwdriver groove is formed in the top end of the rotating piece; when the rotating piece is not convenient to be screwed manually, the screw rod main body can be screwed on the screw driver groove by using a screw driver.
Further, the length of the groove is equal to the length of the first connecting end and the length of the second connecting end; the first connecting end or the second connecting end is just placed in the groove, so that the plurality of lead screw main bodies and the positioning assembly and the lead screw main body can be connected without gaps.
Further, the material of the screw rod main body is No. 45 steel; the No. 45 steel has the advantages of excellent wear resistance, good mechanical property, higher strength, good plasticity and toughness and the like.
The utility model has the advantages that: the positioning assembly is arranged, so that not only can components driven on the screw rod main body be prevented from running out of the screw rod main body, but also the screw rod main body can be controlled to be driven on the components; the first connecting end, the second connecting end and the grooves are mutually matched and connected, so that the plurality of lead screw main bodies are connected, the overall length is flexibly adjusted, and the requirements on lead screws with different lengths are met.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure: 1. a lead screw body; 2. a first connection end; 3. a groove; 4. a second connection end; 5. a positioning member; 6. a rotating member; 7. a screwdriver slot.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings:
as shown in fig. 1, a screw comprises a screw body 1 and a positioning assembly, wherein the screw body 1 comprises a threaded screw and a first connecting end 2, trapezoidal threads are arranged on the outer wall of the threaded screw, one end of the threaded screw is integrally formed with the first connecting end 2, a groove 3 is arranged at the other end of the threaded screw, fine thread external threads are arranged on the outer wall of the first connecting end 2, and fine thread internal threads are arranged on the inner wall of the groove 3; the positioning assembly comprises a second connecting end 4, a positioning piece 5 and a rotating piece 6, the second connecting end 4, the positioning piece 5 and the rotating piece 6 are sequentially and integrally formed, the outer wall of the second connecting end 4 is provided with fine thread external threads, and the first connecting end 2 and the second connecting end 4 are connected with the groove 3 in a matched mode.
The outer wall of the rotating piece 6 is provided with reticulate patterns; increase frictional force, make things convenient for the manual work to revolve to twist screw rod main part 1.
The top end of the rotating piece 6 is provided with a screwdriver groove 7; when it is inconvenient to manually screw the rotary member 6, the screw body 1 may be screwed on the screw driver groove 7 by using a screw driver.
The length of the groove 3 is equal to that of the first connecting end 2 and the second connecting end 4; the first connecting end 2 or the second connecting end 4 is just placed in the groove 3, so that the plurality of screw rod main bodies 1 and the positioning assembly and the screw rod main body 1 can be connected without gaps.
The material of the screw rod main body 1 is No. 45 steel; the No. 45 steel has the advantages of excellent wear resistance, good mechanical property, higher strength, good plasticity and toughness and the like.
The utility model discloses a theory of operation does:
as shown in figure 1, when the length of a filament rod needs to be added, a first connecting end 2 of one lead screw main body 1 is in threaded connection with a groove 3 of the other lead screw main body 1, a new lead screw main body with one time of length can be formed without gaps, a plurality of lead screw main bodies 1 can be connected according to requirements by the operation, a new lead screw main body meeting the requirements is finally formed, and finally a second connecting end 4 of a positioning assembly is in threaded connection with the groove 3 to operate.
Compared with the prior art, the utility model discloses the beneficial effect who has does:
the positioning assembly is arranged, so that not only can components driven on the screw rod main body 1 be prevented from running out of the screw rod main body 1, but also the screw rod main body 1 can be controlled to be driven on the components; the first connecting end 2 and the second connecting end 4 are mutually matched and connected with the groove 3, so that the plurality of lead screw main bodies 1 are connected, the overall length is flexibly adjusted, and the requirements on lead screws with different lengths are met.
The above is only the preferred embodiment of the present invention, and not the patent protection scope of the present invention is limited thereby, all the equivalent structure changes made by the contents of the specification and the drawings of the present invention can be directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.
Claims (5)
1. A screw rod comprises a screw rod main body and a positioning assembly, and is characterized in that the screw rod main body comprises a threaded screw rod and a first connecting end, trapezoidal threads are arranged on the outer wall of the threaded screw rod, one end of the threaded screw rod and the first connecting end are integrally formed, a groove is formed in the other end of the threaded screw rod, fine-tooth external threads are arranged on the outer wall of the first connecting end, and fine-tooth internal threads are arranged on the inner wall of the groove; the positioning assembly comprises a second connecting end, a positioning piece and a rotating piece, the second connecting end, the positioning piece and the rotating piece are sequentially and integrally formed, fine tooth external threads are arranged on the outer wall of the second connecting end, and the first connecting end and the second connecting end are connected with the grooves in a matched mode.
2. A screw according to claim 1, wherein the outer wall of said rotating member is textured.
3. The screw according to claim 1, wherein the top end of the rotary member is provided with a screw driver groove.
4. The feed screw of claim 1, wherein said groove has a length equal to a length of said first connecting end and said second connecting end.
5. The lead screw of claim 1, wherein the lead screw body is made of 45 gauge steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921431865.8U CN210600080U (en) | 2019-08-30 | 2019-08-30 | Screw rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921431865.8U CN210600080U (en) | 2019-08-30 | 2019-08-30 | Screw rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210600080U true CN210600080U (en) | 2020-05-22 |
Family
ID=70693284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921431865.8U Active CN210600080U (en) | 2019-08-30 | 2019-08-30 | Screw rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210600080U (en) |
-
2019
- 2019-08-30 CN CN201921431865.8U patent/CN210600080U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |