CN210715518U - Screw with high fastening performance - Google Patents
Screw with high fastening performance Download PDFInfo
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- CN210715518U CN210715518U CN201921328815.7U CN201921328815U CN210715518U CN 210715518 U CN210715518 U CN 210715518U CN 201921328815 U CN201921328815 U CN 201921328815U CN 210715518 U CN210715518 U CN 210715518U
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- screw
- fastening
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- block
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Abstract
A screw with high tightness comprises a screw body and a head arranged at the upper end of the screw body, wherein an upper thread is arranged on the outer wall of the upper part of the screw body, a lower thread is arranged on the outer wall of the lower part of the screw body, and a clamping part is arranged between the upper thread and the lower thread; a pressing groove is formed in the center of the upper surface of the head; a screw hole communicated with the pressing groove is formed in the upper part of the screw body; a pressing cavity communicated with an orifice at the lower end of the screw hole is arranged in the screw body; fastening holes which are symmetrical to each other are formed in the left side and the right side of the outer wall of the clamping part and communicated with the pressing cavity; a fixed seat is arranged at the center of the inner wall of the lower side of the pressing cavity; and a fastening block positioned in the fastening chamber is arranged above the fixed seat, and the diameter of the fastening block is larger than that of the screw hole. The utility model discloses a screw with high fixity need not excessively to screw, just can effectively avoid the screw the not hard up condition to appear, guarantees the high fixity of screw.
Description
Technical Field
The present invention relates to a screw, and more particularly to a screw with high fastening property.
Background
The screw is a fastener which realizes the fastening connection of two different objects through the matching of screw holes, but in the actual fastening process of the screw, the two fastened objects are likely to have vibration, when the objects vibrate, the screw is easy to loosen under the guiding effect of the thread track, and along with the loosening of the screw, the two objects which should be fastened and connected originally are easy to separate, so that accidents are caused, and in order to avoid the loosening of the screw, a worker generally screws the screw by using up the maximum force, the loosening prevention mode not only easily causes the fracture of the screw in the excessive screwing process, but also excessively screws, the screw thread is damaged, the screw is very difficult to unscrew afterwards, and the screw is seized.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a screw with high fixity, it need not excessively to screw, just can effectively avoid the screw the not hard up condition to appear, guarantees the high fixity of screw.
The utility model provides a technical scheme that above-mentioned technical problem adopted does:
the utility model discloses a screw with high fixity, including the spiral shell body, locate the head of spiral shell body upper end, its characterized in that: the outer wall of the upper part of the screw body is provided with an upper thread, the outer wall of the lower part of the screw body is provided with a lower thread, and a clamping part is arranged between the upper thread and the lower thread; a pressing groove is formed in the center of the upper surface of the head; a screw hole communicated with the pressing groove is formed in the upper part of the screw body; a pressing cavity communicated with an orifice at the lower end of the screw hole is arranged in the screw body; fastening holes which are symmetrical to each other are formed in the left side and the right side of the outer wall of the clamping part and communicated with the pressing cavity; a fixed seat is arranged at the center of the inner wall of the lower side of the pressing cavity; a fastening block positioned in the fastening chamber is arranged above the fixed seat, and the diameter of the fastening block is larger than that of the screw hole; the left side and the right side of the fastening block are hinged with fastening rods; the lower end of the fastening rod obliquely penetrates into the fastening hole, and the lower end of the fastening rod is sharp; a movable hole is formed in the center of the fastening block; the center of the upper surface of the fixed seat is connected with a guide rod matched with the movable hole; a screw rod is screwed in the screw hole, and the thread track of the screw rod is opposite to the thread tracks of the upper thread and the lower thread; the upper end of the screw rod penetrates into the pressing groove upwards and is provided with a rotating head; a pressing gap is formed between the rotating head and the bottom of the pressing groove; the end face of the lower end of the screw is attached to the upper surface of the fastening block, and a guide hole is formed in the center of the end face of the lower end of the screw; the upper end of the guide rod upwards penetrates through the movable hole and penetrates into the guide hole; a spring is arranged between the fastening block and the fixed seat and sleeved outside the guide rod.
A lower clamping block is arranged at the center of the upper surface of the fixed seat; the lower end of the guide rod is arranged in the center of the upper surface of the lower clamping block; an upper clamping block is arranged on the lower surface of the fastening block; the upper clamping block is provided with an auxiliary hole communicated with the movable hole, and the auxiliary hole is coaxial with the movable hole; the upper end of the spring is clamped outside the upper clamping block, and the lower end of the spring is clamped outside the lower clamping block.
The upper surface of the fastening block is provided with an annular rubber pad which encloses the lower end of the screw rod; the upper surface of the rubber pad is attached to the inner wall of the upper side of the pressing cavity.
An embedding hole is formed in the center of the upper surface of the rotating head; the left side and the right side of the embedding hole are provided with embedding grooves which are mutually symmetrical; an embedded block matched with the embedded hole is arranged in the embedded hole; the left side and the right side of the embedded block are provided with embedded strips matched with the embedded grooves; an extension rod is arranged in the center of the upper surface of the embedded block; the left side and the right side of the extension rod are provided with symmetrical rotary handles.
The utility model has the advantages that:
compared with the prior art, adopt the utility model discloses the screw that has high fixity of structure can accomplish behind the fastening connection of two articles at the screw between the screw thread in the screw of one of them article with the fastening rod card, can make the spiro union of screw firmly in the screw of article through the fastening rod, even the condition of vibrations appears, also can effectively avoid appearing the not hard up condition that leads to two article separations of screw, effectively stop the potential safety hazard, and the screw track and the last screw thread of screw rod, the screw track of lower screw thread is opposite, when the spiral shell body appears becoming flexible, the screw rod must further screw, thereby further compress tightly the fastening rod that the card dies on the screw thread of article, avoid the not hard up condition of screw appearance in the at utmost, guarantee the high steadiness of screw.
Drawings
Fig. 1 is a schematic structural view of the screw with high fastening performance according to the present invention.
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description:
referring to fig. 1, the present invention provides a screw with high fastening performance, which includes a screw body 1 and a head 2 disposed at an upper end of the screw body 1, wherein an upper thread 3 is disposed on an outer wall of an upper portion of the screw body 1, a lower thread 4 is disposed on an outer wall of a lower portion of the screw body 1, and a positioning portion 5 is disposed between the upper thread 3 and the lower thread 4; a pressing groove 6 is formed in the center of the upper surface of the head 2; a screw connection hole 7 communicated with the pressing groove 6 is formed in the upper part of the screw body 1; a pressing chamber 8 communicated with an orifice at the lower end of the screw hole 7 is arranged in the screw body 1; fastening holes 9 which are symmetrical to each other are formed in the left side and the right side of the outer wall of the clamping part 5, and the fastening holes 9 are communicated with the pressing cavity 8; a fixed seat 10 is arranged at the center of the inner wall of the lower side of the compressing cavity 8; a fastening block 11 positioned in the pressing cavity 8 is arranged above the fixed seat 10, and the diameter of the fastening block 11 is larger than that of the screw hole 7; the left side and the right side of the fastening block 11 are hinged with fastening rods 12; the lower end of the fastening rod 12 obliquely penetrates into the fastening hole 9, and the lower end of the fastening rod 12 is sharp; the center of the fastening block 11 is provided with a movable hole 13; the center of the upper surface of the fixed seat 10 is connected with a guide rod 14 matched with the movable hole 13; a screw rod 15 is screwed in the screw hole 7, and the thread track of the screw rod 15 is opposite to the thread tracks of the upper thread 3 and the lower thread 4; the upper end of the screw rod 15 upwards penetrates into the compacting groove 6 and is provided with a rotating head 16; a pressing gap 17 is formed between the rotating head 16 and the bottom of the pressing groove 6; the end face of the lower end of the screw rod 15 is attached to the upper surface of the fastening block 11, and a guide hole 18 is formed in the center of the end face of the lower end of the screw rod 15; the upper end of the guide rod 14 upwards passes through the movable hole 13 and penetrates into the guide hole 18; a spring 19 is arranged between the fastening block 11 and the fixing seat 10, and the spring 19 is sleeved outside the guide rod 14.
A lower fixture block 20 is arranged at the center of the upper surface of the fixed seat 10; the lower end of the guide rod 14 is arranged at the center of the upper surface of the lower fixture block 20; an upper clamping block 21 is arranged on the lower surface of the fastening block 11; the upper fixture block 21 is provided with an auxiliary hole 22 communicated with the movable hole 13, and the auxiliary hole 22 is coaxial with the movable hole 13; the upper end of the spring 19 is clamped outside the upper clamping block 21, and the lower end of the spring 19 is clamped outside the lower clamping block 20.
The upper surface of the fastening block 11 is provided with an annular rubber pad 23, and the rubber pad 23 encloses the lower end of the screw 15; the upper surface of the rubber pad 23 is attached to the inner wall of the upper side of the pressing chamber 8.
An embedding hole 24 is formed in the center of the upper surface of the rotating head 16; the left side and the right side of the embedding hole 24 are provided with embedding grooves 25 which are mutually symmetrical; an embedded block 26 matched with the embedded hole 24 is arranged in the embedded hole; the left side and the right side of the insert block 26 are provided with insertion strips 27 matched with the insertion grooves 25; an extension rod 28 is arranged at the center of the upper surface of the insert 26; the left side and the right side of the extension rod 28 are provided with symmetrical rotary handles 29.
The utility model discloses a use method as follows:
use the utility model discloses a during the screw, the staff can be earlier through last screw thread 3 on the spiral shell body 1 and screw 4 with screw in to the screw of the article in two articles that are connected, after the screw was screwed, the screw just can be through the head with an article sticiss on the outer wall of the article that has the screw to realize the fastening connection between two articles.
The worker can rotate the rotating head 16 to make the rotating head 16 control the screw rod 15 to move downwards along the thread track of the screw hole 7, because the rotating head 16 and the bottom of the pressing groove 6 have a downward pressing gap, the rotating head 16 can move downwards smoothly along with the screw rod 15, the rotating head 16 can not obstruct the downward movement of the screw rod 15, when the screw rod 15 moves downwards, the lower end of the screw rod 15 can extrude the fastening block 11 downwards, the left side and the right side of the fastening block 11 are hinged with fastening rods 12 which are symmetrical to each other, the lower end of the fastening rod 12 obliquely penetrates into the fastening hole 9, when the fastening block 11 is extruded to move downwards, the fastening block 11 can drive the fastening rod 12 to move, along with the downward movement of the upper end of the fastening rod 12, the lower end of the fastening rod 12 can be extruded by the inner wall of the fastening hole 9, so that the lower end of the fastening rod 12 slowly penetrates out of the fastening hole 9, along with the continuous outward extension of the lower end of, the lower end of the fastening rod 12 is sharp, the lower end of the fastening rod 12 is directly inserted between the threads, and the lower end of the fastening rod 12 is not engaged with the threads of the screw hole of the object, so if the screw is loosened along the thread track, the threads are directly locked with the fastening rod 12.
To sum up, can know, the utility model discloses can accomplish between the screw thread in the screw of two articles of the fastening connection back of two articles with the anchorage bar 12 card die in one of them article, can make screw spiro union in the screw of article firmly through anchorage bar 12, even the condition of vibrations appears, also can effectively avoid appearing the screw not hard up condition that leads to two article separations, effectively stop the potential safety hazard, and screw rod 15's screw track and last screw thread 3, lower screw thread 4's screw track is opposite, when the spiral shell body 1 appears not hard up, screw rod 15 must further screw, thereby further compress tightly the anchorage bar that the card dies in the screw thread of article, avoid the screw not hard up condition to appear in the at utmost, guarantee the high steadiness of screw.
When two connected articles need to be actively separated, a worker can rotate the rotating head 16 upwards, the screw rod 15 moves upwards at the moment, the fastening block 11 drives the fastening rod 12 to reset under the action of elastic force generated by compression of the spring 19, and when the fastening rod 12 is not clamped on the screw thread in the screw hole of the article, the worker only needs to normally rotate the head of the screw to screw out the screw from the screw hole of the article, so that the disassembling work is completed.
The upper surface center of fixing base 10 is equipped with down fixture block 20, fixture block 20 upper surface center is located down to guide bar 14 lower extreme, fastening block 11 lower surface is equipped with fixture block 21, be equipped with the auxiliary hole 22 that link up with activity hole 13 on the upper fixture block 21, auxiliary hole 22 is coaxial with activity hole 13, the upper end card of spring 19 is outside upper fixture block 21, the lower extreme card of spring 19 is outside lower fixture block 20, the existence of upper fixture block 21 and lower fixture block 20 can be through effectively avoiding the spring 19 because the restriction of heeling to the upper and lower extreme of spring 19 to lead to the fastening block to be difficult to drive the condition that fastening rod 12 normally resets.
The upper surface of the fastening block 11 is provided with an annular rubber pad 23, the rubber pad 23 encloses the lower end of the screw rod 15 and is closed, the upper surface of the rubber pad 23 is attached to the inner wall of the upper side of the pressing cavity 8, the rubber pad 23 can play a role in buffering and preventing abrasion, and the situation that the fastening block 11 is reset at each time and collides and abraded with the inner wall of the upper side of the pressing cavity 8 is effectively avoided.
Rotating head 16 upper surface center is equipped with the abaculus hole 24, the abaculus hole 24 left and right sides is equipped with caulking groove 25 each other is symmetrical, be equipped with in the caulking hole 24 rather than assorted abaculus 26, the abaculus block 26 left and right sides is equipped with caulking groove 25 assorted fillet 27, abaculus block 26 upper surface center is equipped with extension rod 28, the extension rod 28 left and right sides is equipped with each other symmetrical swing handle 29, the existence of extension rod 28 can make the staff can have more spaces and operate swing handle 29, more do benefit to and drive rotating head 16 through swing handle 29 and carry out the rapid rotation, need not with the help of other instruments, and the cooperation of abaculus block 26 and caulking hole 24, the cooperation of fillet 27 and caulking groove 25 can realize swing handle 29 and rotating head 16's quick separation.
Claims (4)
1. The utility model provides a screw with high fixity, includes the spiral shell body, locates the head of spiral shell body upper end, its characterized in that: the outer wall of the upper part of the screw body is provided with an upper thread, the outer wall of the lower part of the screw body is provided with a lower thread, and a clamping part is arranged between the upper thread and the lower thread; a pressing groove is formed in the center of the upper surface of the head; a screw hole communicated with the pressing groove is formed in the upper part of the screw body; a pressing cavity communicated with an orifice at the lower end of the screw hole is arranged in the screw body; fastening holes which are symmetrical to each other are formed in the left side and the right side of the outer wall of the clamping part and communicated with the pressing cavity; a fixed seat is arranged at the center of the inner wall of the lower side of the pressing cavity; a fastening block positioned in the fastening chamber is arranged above the fixed seat, and the diameter of the fastening block is larger than that of the screw hole; the left side and the right side of the fastening block are hinged with fastening rods; the lower end of the fastening rod obliquely penetrates into the fastening hole, and the lower end of the fastening rod is sharp; a movable hole is formed in the center of the fastening block; the center of the upper surface of the fixed seat is connected with a guide rod matched with the movable hole; a screw rod is screwed in the screw hole, and the thread track of the screw rod is opposite to the thread tracks of the upper thread and the lower thread; the upper end of the screw rod penetrates into the pressing groove upwards and is provided with a rotating head; a pressing gap is formed between the rotating head and the bottom of the pressing groove; the end face of the lower end of the screw is attached to the upper surface of the fastening block, and a guide hole is formed in the center of the end face of the lower end of the screw; the upper end of the guide rod upwards penetrates through the movable hole and penetrates into the guide hole; a spring is arranged between the fastening block and the fixed seat and sleeved outside the guide rod.
2. A screw having high fastening ability according to claim 1, wherein: a lower clamping block is arranged at the center of the upper surface of the fixed seat; the lower end of the guide rod is arranged in the center of the upper surface of the lower clamping block; an upper clamping block is arranged on the lower surface of the fastening block; the upper clamping block is provided with an auxiliary hole communicated with the movable hole, and the auxiliary hole is coaxial with the movable hole; the upper end of the spring is clamped outside the upper clamping block, and the lower end of the spring is clamped outside the lower clamping block.
3. A screw having high fastening ability according to claim 1, wherein: the upper surface of the fastening block is provided with an annular rubber pad which encloses the lower end of the screw rod; the upper surface of the rubber pad is attached to the inner wall of the upper side of the pressing cavity.
4. A screw having high fastening ability according to claim 1, wherein: an embedding hole is formed in the center of the upper surface of the rotating head; the left side and the right side of the embedding hole are provided with embedding grooves which are mutually symmetrical; an embedded block matched with the embedded hole is arranged in the embedded hole; the left side and the right side of the embedded block are provided with embedded strips matched with the embedded grooves; an extension rod is arranged in the center of the upper surface of the embedded block; the left side and the right side of the extension rod are provided with symmetrical rotary handles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921328815.7U CN210715518U (en) | 2019-08-15 | 2019-08-15 | Screw with high fastening performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921328815.7U CN210715518U (en) | 2019-08-15 | 2019-08-15 | Screw with high fastening performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210715518U true CN210715518U (en) | 2020-06-09 |
Family
ID=70965283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921328815.7U Expired - Fee Related CN210715518U (en) | 2019-08-15 | 2019-08-15 | Screw with high fastening performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210715518U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112460124A (en) * | 2020-12-02 | 2021-03-09 | 扬州三劦紧固件有限公司 | High-strength bolt and processing method thereof |
| CN113294421A (en) * | 2021-06-19 | 2021-08-24 | 江苏宁欣汽车零部件有限公司 | Double-hexagon bolt head bolt |
-
2019
- 2019-08-15 CN CN201921328815.7U patent/CN210715518U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112460124A (en) * | 2020-12-02 | 2021-03-09 | 扬州三劦紧固件有限公司 | High-strength bolt and processing method thereof |
| CN112460124B (en) * | 2020-12-02 | 2022-07-19 | 扬州三劦紧固件有限公司 | High-strength bolt and processing method thereof |
| CN113294421A (en) * | 2021-06-19 | 2021-08-24 | 江苏宁欣汽车零部件有限公司 | Double-hexagon bolt head bolt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200609 Termination date: 20210815 |