CN212959731U - Spacing self-sliding protective screw rod - Google Patents
Spacing self-sliding protective screw rod Download PDFInfo
- Publication number
- CN212959731U CN212959731U CN202021854083.8U CN202021854083U CN212959731U CN 212959731 U CN212959731 U CN 212959731U CN 202021854083 U CN202021854083 U CN 202021854083U CN 212959731 U CN212959731 U CN 212959731U
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- China
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- wedge block
- screw rod
- lead screw
- fixing ring
- block fixing
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Abstract
The utility model relates to a spacing self-sliding protection lead screw, including the lead screw, the power tube on the lead screw is located to the cover and the crank of locating lead screw one end, be equipped with lead screw protection mechanism on the lead screw, lead screw protection mechanism is located between lead screw and the power tube, lead screw protection mechanism is including locating the nut on the lead screw, first voussoir retainer plate and second voussoir retainer plate all with power tube fixed connection, first voussoir retainer plate and second voussoir retainer plate are located the both sides of nut respectively, be equipped with a plurality of mounting hole on the nut, be equipped with the spring in the a plurality of mounting hole, be connected with first voussoir and second voussoir on the a plurality of spring respectively, seted up on the first voussoir retainer plate with first vous. The utility model discloses simple structure, low cost can effectually avoid nut and power tube to remove on the lead screw always, prevents that the nut from continuously moving the damage that causes the lead screw.
Description
Technical Field
The utility model belongs to the technical field of the lead screw, concretely relates to spacing self-sliding protection lead screw.
Background
The screw rod can convert rotary motion into linear motion and convert torque into axial repeated acting force, and has the characteristics of high precision, strong reversibility and high efficiency, so that the screw rod is widely applied to various mechanical equipment. In the practical application process of lead screw, because operator's misuse, when the lead screw reachd the spacing collar, continue to rotate the lead screw, the lead screw is twisted off or damaged, and this kind of condition makes the use of lead screw and cost of maintenance increase, has also caused danger to the user of lead screw.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a simple structure, reasonable in design's spacing smooth protection lead screw from in order to solve the above-mentioned problem that causes the harm to the lead screw.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
the utility model provides a spacing self-sliding protection lead screw, includes that lead screw, cover locate the power pipe on the lead screw and locate the crank of lead screw one end, its characterized in that: the screw rod is provided with a screw rod protection mechanism, and the screw rod protection mechanism is positioned between the screw rod and the power tube; screw rod protection mechanism is including locating the nut on the lead screw, first voussoir retainer plate and second voussoir retainer plate all with power tube fixed connection, first voussoir retainer plate and second voussoir retainer plate are located the both sides of nut respectively, be equipped with a plurality of mounting hole towards the nut both sides of first voussoir retainer plate and second voussoir retainer plate, be equipped with the spring in the mounting hole, be connected with first voussoir on the spring that is located first voussoir retainer plate side, be connected with the second voussoir on the spring that is located second voussoir retainer plate side, set up on first voussoir retainer plate and the second voussoir retainer plate with first voussoir and second voussoir matched with voussoir fixed slot, the one end that the crank was kept away from to the lead screw is equipped with first spacing collar, be equipped with the second spacing.
As the utility model discloses a further optimization scheme, first spacing collar and second spacing collar are all connected with the lead screw through the pin.
As the utility model discloses a further optimization scheme all is equipped with the perforation on first voussoir retainer plate and the second voussoir retainer plate, and the diameter of first spacing collar is the same with the diameter of second spacing collar, and the diameter of first voussoir retainer plate is the same with the diameter of second voussoir retainer plate, and the diameter of perforation is not less than the diameter of first spacing collar.
As a further optimization scheme of the utility model, lead screw protection machanism is located between first spacing collar and the second spacing collar.
As the utility model discloses a further optimization scheme all is equipped with right angle face and inclined plane on first voussoir and the second voussoir, and the inclined plane of first voussoir and second voussoir sets up towards the rotation direction of lead screw, and its right angle face sets up the rotation direction of lead screw dorsad.
As a further optimization scheme of the utility model, be equipped with the fixed support portion between crank and the second spacing collar.
The beneficial effects of the utility model reside in that: the utility model discloses simple structure, lead screw protection mechanism can make the nut take place the idle running when the nut moves to stroke extreme position, has prevented the continuation displacement of nut, protects the lead screw to avoid the lead screw to damage or the cracked condition to take place.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural diagram of the screw mechanism of the present invention;
FIG. 3 is a schematic view of the wedge structure of the present invention;
in the figure: 1. a screw rod; 2. a first spacing collar; 3. a power tube; 4. a first wedge fixing ring; 5. a wedge block fixing groove; 6. a spring; 7. a first wedge; 8. a nut; 9. a second limit ring; 10. mounting holes; 11. a pin; 12. a second wedge fixing ring; 13. a second wedge; 14. a crank; 15. and fixing the supporting part.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
Example 1
As shown in fig. 1-3, a limiting self-sliding protective screw rod comprises a screw rod 1, a power tube 3 sleeved on the screw rod 1, and a crank 14 arranged at one end of the screw rod 1; the screw rod 1 is provided with a screw rod protection mechanism which is positioned between the screw rod 1 and the power tube 3; the screw rod protection mechanism comprises a nut 8 arranged on the screw rod 1, the device comprises a first wedge block fixing ring 4 and a second wedge block fixing ring 12, wherein the first wedge block fixing ring 4 and the second wedge block fixing ring 12 are fixedly connected with a power pipe 3, the first wedge block fixing ring 4 and the second wedge block fixing ring 12 are respectively positioned on two sides of a nut 8, a plurality of mounting holes 10 are formed in two sides of the nut 8 facing the first wedge block fixing ring 4 and the second wedge block fixing ring 12, springs 6 are arranged in the mounting holes 10, a first wedge block 7 is connected to the spring 6 positioned on the side of the first wedge block fixing ring 4, a second wedge block 13 is connected to the spring 6 positioned on the side of the second wedge block fixing ring 12, wedge block fixing grooves 5 matched with the first wedge block 7 and the second wedge block 13 are formed in the first wedge block fixing ring 4 and the second wedge block fixing ring 12, a first limiting ring 2 is arranged at one end, far away from a crank 14, of a screw rod protection mechanism and the crank 14 are provided with a second limiting ring 9; the first limiting ring 2 and the second limiting ring 9 are both connected with the screw rod 1 through pins 11; the first wedge block fixing ring 4 and the second wedge block fixing ring 12 are both provided with through holes, the diameter of the first limiting ring 2 is the same as that of the second limiting ring 9, the diameter of the first wedge block fixing ring 4 is the same as that of the second wedge block fixing ring 12, and the diameter of the through holes is not smaller than that of the first limiting ring 2; the screw rod protection mechanism is positioned between the first limiting ring 2 and the second limiting ring 9; the first wedge block 7 and the second wedge block 13 are both provided with right-angle surfaces and inclined surfaces, the inclined surfaces of the first wedge block 7 and the second wedge block 13 are arranged towards the rotating direction of the screw rod 1, and the right-angle surfaces are arranged back to the rotating direction of the screw rod 1; a fixed supporting part 15 is arranged between the crank 14 and the second limiting ring 9, the fixed supporting part 15 is used for supporting the screw rod 1, and the screw rod 1 can rotate on the fixed supporting part 15 but cannot move left and right.
It should be noted that the whole device is divided into two operation processes, one is a clockwise operation process, and the other is a counterclockwise operation process.
The clockwise operation process: the crank 14 is rotated clockwise, the crank 14 drives the screw rod 1 to rotate, at the moment, because the nut 8 on the screw rod 1 and the first wedge block fixing ring 4 are in a limiting state, the right-angle surface of the first wedge block 7 is stressed and cannot slide out of the wedge block fixing groove 5 on the first wedge block fixing ring 4, so the nut 8 cannot rotate at the moment, which is equivalent to a sliding block, because the screw rod 1 is limited by the fixing and supporting part 15, the screw rod 1 can only rotate and cannot move, after the screw rod 1 rotates, the nut 8 is driven to move leftwards on the screw rod 1 until the first limiting ring 2 passes through the first wedge block fixing ring 4 and presses the first wedge block 7 into the corresponding mounting hole 10 on the nut 8, at the moment, the spacing between the first wedge block 7 and the first wedge block fixing ring 4 is not limited, and because the inclined surface of the second wedge block 13 is a stressed surface, the second wedge block 13 can slide out of the wedge block fixing groove 5 along with the rotation of the nut 8, therefore, the nut 8 is in an idle state and cannot move leftwards any more, and meanwhile, the power tube 3 cannot be continuously driven to move leftwards, so that the screw rod 1 can be protected.
And (3) operating the process anticlockwise: the crank 14 is rotated anticlockwise, the right-angle surface of the second wedge block 13 is stressed at the moment, the nut 8 and the second wedge block fixing ring 12 are limited, the nut 8 is equivalent to a sliding block at the moment, the nut 8 is driven to move rightwards along with the rotation of the screw rod 1, the first wedge block 7 is not stressed any more after moving for a certain distance and is inserted into the wedge block fixing groove 5 of the first wedge block fixing ring 4 again, the nut 8 continuously moves rightwards until the second limiting ring 9 penetrates through the second wedge block fixing ring 12 and presses the second wedge block 13 into the corresponding mounting hole 10 on the nut 8 gradually, therefore, the inclined surface of the first wedge block 7 is stressed and can be separated from the left wedge block fixing groove 5, the nut 8 is in an idling state again at the moment, and the effect of idling protection of the screw rod 1 is.
The above-mentioned embodiments only represent one embodiment of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (6)
1. The utility model provides a spacing self-sliding protective screw rod, includes that lead screw (1), cover locate power tube (3) on lead screw (1) and locate crank (14) of lead screw (1) one end, its characterized in that: the screw rod (1) is provided with a screw rod protection mechanism, and the screw rod protection mechanism is positioned between the screw rod (1) and the power pipe (3);
the lead screw protection mechanism comprises a nut (8), a first wedge block fixing ring (4) and a second wedge block fixing ring (12) which are arranged on a lead screw (1), the first wedge block fixing ring (4) and the second wedge block fixing ring (12) are fixedly connected with a power pipe (3), the first wedge block fixing ring (4) and the second wedge block fixing ring (12) are respectively located on two sides of the nut (8), a plurality of mounting holes (10) are formed in two sides of the nut (8) facing the first wedge block fixing ring (4) and the second wedge block fixing ring (12), a spring (6) is arranged in each mounting hole (10), a first wedge block (7) is connected to the spring (6) located on the side of the first wedge block fixing ring (4), a second wedge block (13) is connected to the spring (6) located on the side of the second wedge block fixing ring (12), and the first wedge block (7) and the second wedge block (13) are arranged on the first wedge block fixing ring (4) and the second wedge block fixing ring (12), and the second wedge block (13) are connected with the first wedge block The novel screw rod protection mechanism is characterized by comprising a matched wedge block fixing groove (5), wherein one end, far away from a crank (14), of the screw rod (1) is provided with a first limiting ring (2), and a second limiting ring (9) is arranged between the screw rod protection mechanism and the crank (14).
2. The limiting self-sliding protective screw rod according to claim 1, characterized in that: the first limiting ring (2) and the second limiting ring (9) are connected with the screw rod (1) through pins (11).
3. The limiting self-sliding protective screw rod according to claim 1, characterized in that: the first wedge block fixing ring (4) and the second wedge block fixing ring (12) are provided with through holes, the diameter of the first limiting ring (2) is the same as that of the second limiting ring (9), the diameter of the first wedge block fixing ring (4) is the same as that of the second wedge block fixing ring (12), and the diameter of the through holes is not smaller than that of the first limiting ring (2).
4. The limiting self-sliding protective screw rod according to claim 1, characterized in that: the screw rod protection mechanism is positioned between the first limiting ring (2) and the second limiting ring (9).
5. The limiting self-sliding protective screw rod according to claim 1, characterized in that: the first wedge block (7) and the second wedge block (13) are provided with right-angle surfaces and inclined surfaces, the inclined surfaces of the first wedge block (7) and the second wedge block (13) are arranged towards the rotating direction of the screw rod (1), and the right-angle surfaces of the first wedge block and the second wedge block are arranged back to the rotating direction of the screw rod (1).
6. The limiting self-sliding protective screw rod according to claim 1, characterized in that: a fixed supporting part (15) is arranged between the crank (14) and the second limiting ring (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021854083.8U CN212959731U (en) | 2020-08-31 | 2020-08-31 | Spacing self-sliding protective screw rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021854083.8U CN212959731U (en) | 2020-08-31 | 2020-08-31 | Spacing self-sliding protective screw rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212959731U true CN212959731U (en) | 2021-04-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021854083.8U Active CN212959731U (en) | 2020-08-31 | 2020-08-31 | Spacing self-sliding protective screw rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212959731U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113463894A (en) * | 2021-07-09 | 2021-10-01 | 江西华翔建筑有限责任公司 | Scaffold frame with adjustable construction is used |
-
2020
- 2020-08-31 CN CN202021854083.8U patent/CN212959731U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113463894A (en) * | 2021-07-09 | 2021-10-01 | 江西华翔建筑有限责任公司 | Scaffold frame with adjustable construction is used |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 234000 Jinjiang Road South, Suzhou economic and Technological Development Zone, Anhui Province Patentee after: Anhui Huakang Hi-Tech Biomedical Co.,Ltd. Address before: 234000 Jinjiang Road South, Suzhou economic and Technological Development Zone, Anhui Province Patentee before: Suzhou Huakang Medical Devices Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |