CN202946498U - Stress swelling screw - Google Patents
Stress swelling screw Download PDFInfo
- Publication number
- CN202946498U CN202946498U CN 201220537742 CN201220537742U CN202946498U CN 202946498 U CN202946498 U CN 202946498U CN 201220537742 CN201220537742 CN 201220537742 CN 201220537742 U CN201220537742 U CN 201220537742U CN 202946498 U CN202946498 U CN 202946498U
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- CN
- China
- Prior art keywords
- swelling
- screw
- expansion
- screw rod
- expansive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model relates to a stress swelling screw. The stress swelling screw comprises a swelling outer sleeve. A swelling groove is formed under the middle of the swelling outer sleeve. A swelling hammer hole is formed inside the under portion of the middle of the swelling outer sleeve. The stress swelling screw is characterized in that a stress resistant loop is connected to the upper end of a tension screw; the top end of the tension screw is processed into a square core; the exterior surface of the tension screw is provided with a screw thread; a mounting nut is connected with the upper surface of the tension screw in a movable mode; the mounting nut is used for fixing a device or an electrical appliance; a hammer-shaped expansive force nut is processed into an internal screw thread; the hammer-shaped expansive force nut is connected with the lower end of the tension screw; and the square core on the top end of the tension screw is used for screwing or unscrewing the hammer-shaped expansive force nut to enable the swelling hammer hole of the lower end of the swelling outer sleeve to become big or small through the swelling groove.
Description
Technical field
The utility model relates to expansive screw, particularly relates to a kind of stressed expansive screw.
Background technique
The effect of expansive screw is: be used for installing or the under-chassis of the household electric appliance such as the fixing equipment that does not pre-determine the position and air-conditioning, to realize a kind of installation method of simple and fast.
present known expansive screw is divided into two large classes, a kind of is iron-clad screw rod cable-stayed type expansion rod, another kind is that nylon outer shell is directly attacked the formula expansion rod, above-mentioned iron-clad screw rod cable-stayed type expansion rod and nylon outer shell are directly attacked the formula expansion rod, the phenomenon of screw rod and expansion rod rotation can appear in fastening nut when mounted, screw rod and expansion rod rotate the under-chassis of equipment and household electric appliance can't be fixed, this mainly contains two reasons and causes, 1: be that the too large and expansion shell of mounting hole does not closely cooperate, 2: be that the round acutance in screw rod bottom is large not, the method that the installer will solve these two problems is packing between expansion shell and mounting hole, the expansion shell can not rotated, reach the purpose of energy fastening nut, but this is affected equipment and electric mounting intensity, particularly to the installation strength equipment that has certain requirements, iron-clad screw rod cable-stayed type expansion rod and nylon outer shell are directly attacked the formula expansion rod, can't satisfy the installation strength requirement especially.
Summary of the invention
Technical problem to be solved in the utility model is, overcomes present iron-clad screw rod cable-stayed type expansion rod, nylon outer shell is directly attacked the technical problem that the formula expansion rod exists, and a kind of stressed expansive screw is provided.
In order to realize the purpose of this utility model, the technical solution adopted in the utility model: comprise the expansion overcoat, the expansion overcoat has expansion slot below the centre.
Further optimize, being processed in below in the middle of the expansion overcoat expands hammers the hole into shape, it is characterized in that being subjected to the mechanical resistance circle to be connected to pulling force screw rod upper end, the pulling force screw tip is processed into Fang Xin, pulling force screw rod outside is screw thread, mounting nuts is movably connected in above the pulling force screw rod, and mounting nuts is to be used for fixing equipment or electrical equipment.
Improve as further optimization of the present utility model, capitate expansive force nut inner hole is processed into internal thread, and capitate expansive force nut is connected to pulling force screw rod lower end.
The further Fang Xin of pulling force screw tip is to tighten or unscrew capitate expansive force nut to make the expansion hammer hole of expansion overcoat lower end become greatly or diminish by expansion slot.
working principle of the present utility model is such: when equipment or household electric appliance need to be installed in certain position, electricity consumption is drilled on the hard basis and gets the mounting hole that can put into the stressed expansive screw overcoat of the utility model, then put into a stressed expansive screw of cover, turn the Fang Xin of pulling force screw rod upper end, because being subjected to the reaction force of mechanical resistance circle and expansion overcoat, screw thread in capitate expansive force nut and the engagement of pulling force external thread of screw, turn pulling force screw rod upper end Fang Xin by certain orientation, make capitate expansive force nut along with the pulling force bolt rotary constantly moves up, along with hammer nut moves up, expansion overcoat lower end expansion hammer hole outer wall and expansion slot change ambassador and mounting hole are closely cooperated, reach the purpose of warding off locking in expansion overcoat and mounting hole, and make and draw screw rod to have necessarily by dress intensity, the mounting nuts of back-outing, need electrical equipment or the equipment of installation in peace side, pulling force screw rod upper end, load onto mounting nuts and tighten mounting nuts and reach the purpose of this utility model.
Description of drawings
Fig. 1 is the utility model example structure sectional view:
Fig. 2 is that the utility model embodiment installs the distending view;
Fig. 3 is the utility model STRUCTURE DECOMPOSITION figure;
Embodiment
Referring to Fig. 1, Fig. 2 and Fig. 3, a kind of stressed expansive screw of the utility model comprises: expansion overcoat 6, the expansion overcoat has expansion slot 5 below 6 centres, being processed in below in the middle of expansion overcoat 6 expands hammers hole 4 into shape, it is characterized in that being subjected to mechanical resistance circle 7 to be connected to pulling force screw rod 3 upper ends, pulling force screw rod 3 side of being processed into, top cores 10, pulling force screw rod 3 outsides are outside threads 8, mounting nuts 9 is movably connected in above pulling force screw rod 3, and mounting nuts 9 is to be used for fixing equipment or electrical equipment.
Improve as further optimization of the present utility model, capitate expansive force nut 1 endoporus is processed into internal thread 2, capitate expansive force nut 1 and the 3 lower end engagements of pulling force screw rod.
The further square core 10 on pulling force screw rod 3 tops is to tighten or unscrew capitate expansive force nut 1 to make the expansion hammer hole 4 of expansion overcoat 6 lower ends become large or diminish by expansion slot 5.
Claims (3)
1. stressed expansive screw: comprise expansion overcoat (6), expansion overcoat (6) has expansion slot (5) below the centre, being processed in below in the middle of expansion overcoat (6) expands hammers hole (4) into shape, it is characterized in that being subjected to mechanical resistance circle (7) to be connected to pulling force screw rod (3) upper end, Fang Xin (10) is processed on pulling force screw rod (3) top, pulling force screw rod (3) outside is outside thread (8), mounting nuts (9) is movably connected in above pulling force screw rod (3), and mounting nuts (9) is to be used for fixing equipment or electrical equipment.
2. a kind of stressed expansive screw according to claim 1, is characterized in that, capitate expansive force nut (1) endoporus is processed into internal thread (2), capitate expansive force nut (1) and pulling force screw rod (3) lower end engagement.
3. a kind of stressed expansive screw according to claim 2, be further characterized in that, the Fang Xin (10) on screw rod (3) top is to tighten or unscrew capitate expansive force nut (1) to make the expansion hammer hole (4) of expansion overcoat (6) lower end become greatly or diminish by expansion slot (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220537742 CN202946498U (en) | 2012-10-21 | 2012-10-21 | Stress swelling screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220537742 CN202946498U (en) | 2012-10-21 | 2012-10-21 | Stress swelling screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202946498U true CN202946498U (en) | 2013-05-22 |
Family
ID=48422203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220537742 Expired - Fee Related CN202946498U (en) | 2012-10-21 | 2012-10-21 | Stress swelling screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202946498U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533908A (en) * | 2014-12-19 | 2015-04-22 | 陈辉远 | Recoverable expansion screw |
| CN105313168A (en) * | 2015-06-23 | 2016-02-10 | 俸荣富 | Connecting structure for cutting die and cutter shaft |
| CN107524677A (en) * | 2016-05-27 | 2017-12-29 | 林易攸 | Expansion screw without bar planting glue |
-
2012
- 2012-10-21 CN CN 201220537742 patent/CN202946498U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533908A (en) * | 2014-12-19 | 2015-04-22 | 陈辉远 | Recoverable expansion screw |
| CN105313168A (en) * | 2015-06-23 | 2016-02-10 | 俸荣富 | Connecting structure for cutting die and cutter shaft |
| CN107524677A (en) * | 2016-05-27 | 2017-12-29 | 林易攸 | Expansion screw without bar planting glue |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20141021 |
|
| EXPY | Termination of patent right or utility model |