CN209815544U - Hand wheel and brake nut connecting structure for lever block - Google Patents
Hand wheel and brake nut connecting structure for lever block Download PDFInfo
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- CN209815544U CN209815544U CN201920436451.8U CN201920436451U CN209815544U CN 209815544 U CN209815544 U CN 209815544U CN 201920436451 U CN201920436451 U CN 201920436451U CN 209815544 U CN209815544 U CN 209815544U
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- hand wheel
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- brake nut
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- nut
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Abstract
The utility model discloses a hand wheel for lever block and connection structure of brake nut belongs to lever block technical field. The anti-loosening device comprises a hand wheel and a brake nut, wherein the brake nut is screwed on a long shaft through a transmission thread, a regular polygon hole is concavely arranged on the outer end surface of the brake nut, a regular polygon prism is formed by extending the inner wall of the hand wheel, a counter bore arranged in the middle of the outer end surface of the hand wheel is communicated with the regular polygon prism, the counter bore of the hand wheel is sleeved on the long shaft in a hollow mode, the regular polygon prism of the hand wheel extends into the regular polygon hole of the brake nut, the end surface of the regular polygon prism is abutted against a shaft shoulder of the long shaft, and a check nut connected to the outer end of the long. After the scheme is adopted, the regular polygon prism has good strength and has the characteristic of convenient and fast assembly with the brake nut, and the hand wheel is disassembled only by detaching the locknut firstly. Consequently, abandoned prior art hand wheel and the not enough of brake nut screw connection, the utility model discloses a processing through-hole, screw are exempted from respectively to hand wheel, brake nut.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a hand wheel for lever block and connection structure of brake nut belongs to lever block technical field.
[ background of the invention ]
The lever block is manually and reciprocally wrenched to obtain a linear traction force matched with the load by means of a lever principle so as to drive the load to complete the hoisting operation.
In the prior art, a hand wheel is usually made of thin-walled and light aluminum alloy, the hand wheel is exposed outside an outer shell of a lever block, namely a wrench, three through holes are axially formed in the hand wheel, correspondingly, three screw holes are correspondingly formed in a brake nut, and the hand wheel and the brake nut are fixedly connected together through screws.
Careful analysis of the above structure has revealed the following technical disadvantages:
1. a through hole and a screw hole are required to be processed on the hand wheel and the brake nut respectively, and the hand wheel and the brake nut are required to be connected through screws;
2. because the hand wheel exposes outside lever block shell body, discover in the actual use: the machine body is difficult to avoid impacting the hand wheel when colliding, the connection is loose and the connection fastness is affected as a result of the collision, the thin-wall and light hand wheel is easy to crack at the through hole, so that the hand wheel is damaged, or the screw is broken, the screw hole is damaged and the like, and the broken screw is difficult to take away, so that the normal use of the lever block is affected.
3. The hand wheel and the brake nut are connected by screws, so that the assembly is inconvenient.
[ Utility model ] content
The utility model aims at providing a hand wheel and brake nut's connection structure for lever block, hand wheel and brake nut easy dismounting are swift, can exempt from the screw connection.
Therefore, the utility model adopts the following technical scheme:
the connecting structure of the hand wheel and the brake nut for the lever block comprises the hand wheel and the brake nut screwed on a long shaft through a transmission thread, and the improvement point is that: the outer end face of the brake nut is concavely provided with a regular polygon hole, the inner wall of the hand wheel extends to form a regular polygon prism matched with the regular polygon hole, and a counter bore arranged in the middle of the outer end face of the hand wheel is communicated with the regular polygon prism; the counter bore of the hand wheel is sleeved on the long shaft in a hollow mode, so that the regular polygon prism of the hand wheel extends into the regular polygon hole of the brake nut, the end face of the regular polygon prism abuts against the shaft shoulder of the long shaft, and the anti-loose nut connected to the outer end of the long shaft is located in the counter bore and clings to the bottom wall of the counter bore.
The regular polygonal holes are regular hexagonal holes, and the regular polygonal columns are regular hexagonal columns.
The upper regular polygon hole is a regular quadrangular hole, and the regular polygon prism is a regular quadrangular prism.
The utility model has the advantages as follows:
the hand wheel and the brake nut are fixed circumferentially through the regular polygon prism and the regular polygon hole, the hand wheel is axially fixed on the long shaft through the end face of the regular polygon prism and the locknut, the strength of the regular polygon prism is good, the hand wheel and the brake nut are convenient and fast to assemble, and the hand wheel is disassembled only by detaching the locknut firstly. Consequently, abandoned prior art hand wheel and the not enough of brake nut screw connection, the utility model discloses a processing through-hole, screw are exempted from respectively to hand wheel, brake nut.
[ description of the drawings ]
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a hand wheel of the present invention;
fig. 2 is a schematic structural view of the brake nut of the present invention;
FIG. 3 is a left side view of the hand wheel;
FIG. 4 is a right side view of the brake nut;
fig. 5 is a sectional view of the present invention assembled to a hand hoist.
[ detailed description ] embodiments
Please refer to fig. 1, 2, 3, 4, and 5, which illustrate a preferred embodiment of the present invention.
The connecting structure of the hand wheel and the brake nut for the lever block comprises a hand wheel 1 and a brake nut 2 screwed on a long shaft 3 through a transmission thread, and the improvement point is that: the outer end face of the brake nut 2 is concavely provided with a regular polygon hole 21, the inner wall of the hand wheel 1 extends to form a regular polygon prism 11 matched with the regular polygon hole 21, and a counter bore 10 arranged in the middle of the outer end face of the hand wheel 1 is communicated with the regular polygon prism 11; the counter bore 10 of the hand wheel 1 is sleeved on the long shaft 3 in a hollow mode, so that the regular polygon prism 11 of the hand wheel 1 extends into the regular polygon hole 21 of the brake nut 2, the end face 12 of the regular polygon prism 11 abuts against the shaft shoulder 32 of the long shaft 3, and the locknut 4 connected to the outer end of the long shaft 3 is located in the counter bore 10 and clings to the bottom wall of the counter bore 10.
The brake nut 2 is screwed to the long shaft 3 by a known technique, that is, the brake nut 2 has a transmission threaded hole 20, and the long shaft 3 has a transmission threaded section (not labeled) for screwing the brake nut 2.
The regular polygonal holes 21 are regular hexagonal holes, and the regular polygonal column 11 is a regular hexagonal column.
The regular polygonal holes 21 are regular quadrangular holes, and the regular polygonal column 11 is a regular quadrangular column.
Claims (3)
1. The utility model provides a connection structure of hand wheel and brake nut for lever block, includes the hand wheel and passes through the brake nut of transmission screw thread spiral shell on the major axis, its characterized in that: the outer end face of the brake nut is concavely provided with a regular polygon hole, the inner wall of the hand wheel extends to form a regular polygon prism matched with the regular polygon hole, and a counter bore arranged in the middle of the outer end face of the hand wheel is communicated with the regular polygon prism; the counter bore of the hand wheel is sleeved on the long shaft in a hollow mode, so that the regular polygon prism of the hand wheel extends into the regular polygon hole of the brake nut, the end face of the regular polygon prism abuts against the shaft shoulder of the long shaft, and the anti-loose nut connected to the outer end of the long shaft is located in the counter bore and clings to the bottom wall of the counter bore.
2. The structure for connecting a hand wheel and a brake nut for an arm block according to claim 1, wherein: the regular polygonal holes are regular hexagonal holes, and the regular polygonal columns are regular hexagonal columns.
3. The structure for connecting a hand wheel and a brake nut for an arm block according to claim 1, wherein: the regular polygon holes are regular quadrangular holes, and the regular polygon prism is a regular quadrangular prism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920436451.8U CN209815544U (en) | 2019-03-28 | 2019-03-28 | Hand wheel and brake nut connecting structure for lever block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920436451.8U CN209815544U (en) | 2019-03-28 | 2019-03-28 | Hand wheel and brake nut connecting structure for lever block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209815544U true CN209815544U (en) | 2019-12-20 |
Family
ID=68878248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920436451.8U Active CN209815544U (en) | 2019-03-28 | 2019-03-28 | Hand wheel and brake nut connecting structure for lever block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209815544U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111195686A (en) * | 2019-12-28 | 2020-05-26 | 河北成华机械制造有限公司 | Riveting method of inner plate of lever block wrench and brake cover |
-
2019
- 2019-03-28 CN CN201920436451.8U patent/CN209815544U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111195686A (en) * | 2019-12-28 | 2020-05-26 | 河北成华机械制造有限公司 | Riveting method of inner plate of lever block wrench and brake cover |
| CN111195686B (en) * | 2019-12-28 | 2021-07-13 | 河北成华机械制造有限公司 | Riveting method of inner plate of lever block wrench and brake cover |
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