CN203223159U - Spring tensioning tool - Google Patents
Spring tensioning tool Download PDFInfo
- Publication number
- CN203223159U CN203223159U CN 201320243614 CN201320243614U CN203223159U CN 203223159 U CN203223159 U CN 203223159U CN 201320243614 CN201320243614 CN 201320243614 CN 201320243614 U CN201320243614 U CN 201320243614U CN 203223159 U CN203223159 U CN 203223159U
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- CN
- China
- Prior art keywords
- spring
- housing
- bar shaped
- shaped projection
- tensioning tool
- 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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Abstract
The utility model provides a spring tensioning tool and belongs to the technical field of machinery. The spring tensioning tool solves the problems that an existing spring tensioning tool is unreasonable in design and poor in stability. The spring tensioning tool comprises a mounting plate and a shell, wherein the shell is mounted on the mounting plate through a hinge pin; a spring is installed in the shell; a shaft sleeve is sleeved on the hinge pin, and a gasket is arranged between the hinge pin and the mounting plate; a lower clamping plate and an upper clamping plate are connected into the shell in a buckling mode, and the lower clamping plate is located between the shell and the upper clamping plate; a first strip-shaped protrusion is arranged on the lower end portion of the lower clamping plate, a second strip-shaped protrusion matched with the first strip-shaped protrusion is arranged on the upper end portion of the upper clamping plate, the upper end portion of the spring is sleeved on the second strip-shaped protrusion, and the lower end portion of the spring is sleeved on the first strip-shaped protrusion. The spring tensioning tool has the advantages of being reasonable in design and good in stability.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of tensioned instrument, particularly a kind of tensioned instrument that is applicable to rolling door.
Background technology
Common rolling door inside has the tensioned instrument, but tensioned instrument of the prior art design is unreasonable, and less stable causes certain inconvenience to people's life.
Summary of the invention
The purpose of this utility model is to have the problems referred to above at existing technology, has proposed a kind of tensioned instrument of reasonable in design and good stability.
The purpose of this utility model can realize by following technical proposal: a kind of tensioned instrument, comprise installing plate and be installed in housing on the installing plate by bearing pin, spring is installed in the housing, it is characterized in that, pin sleeve is provided with between axle sleeve and bearing pin and the installing plate and is provided with packing ring, be snapped with lower plate and train wheel bridge and lower plate in the housing between housing and train wheel bridge, the bottom of lower plate has the first bar shaped projection, the upper end of train wheel bridge has the second bar shaped projection that matches with the first bar shaped projection, the spring upper end is set on the second bar shaped projection, and the bottom is set on the first bar shaped projection.
This tensioned instrument is under original state, axle sleeve and packing ring play the effect of a reinforcing to bearing pin, make installing plate tightr with being connected of housing, good stability, in addition, spring is fixed on earlier between lower plate and the train wheel bridge, reinstall in the housing, the first bar shaped projection and the second bar shaped projection reasonable in design makes fixing spring more firm, phenomenons such as axial float, good stability can not appear in spring in the course of the work.
In above-mentioned tensioned instrument, described surface of shell is coated with layer protective layer.General to select case material be iron or aluminum alloy materials, and topping can be protected problems such as oxidation that housing occurs and wearing and tearing in long-term use, prolongs the application life of housing.
Compared with prior art, the utility model bottom bracket axle and packing ring play the effect of a reinforcing to bearing pin, make installing plate tightr with being connected of housing, good stability, in addition, spring is fixed on earlier between lower plate and the train wheel bridge, reinstall in the housing, the first bar shaped projection and the second bar shaped projection reasonable in design makes fixing spring more firm, phenomenons such as axial float, good stability can not appear in spring in the course of the work.
Description of drawings
Fig. 1 is the structural representation of the utility model one preferred embodiment.
Fig. 2 is the structure for amplifying schematic diagram at A place among Fig. 1.
Fig. 3 is the explosive view at A place among Fig. 1.
Among the figure, 1, installing plate; 2, bearing pin; 3, housing; 4, spring; 5, axle sleeve; 6, packing ring; 7, lower plate; 8, train wheel bridge; 9, the first bar shaped projection; 10, the second bar shaped projection.
The specific embodiment
Below be specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
As shown in Figure 1 to Figure 3, this tensioned instrument comprises installing plate 1 and is installed in housing 3 on the installing plate 1 by bearing pin 2, spring 4 is installed in the housing 3, bearing pin 2 is arranged with between axle sleeve 5 and bearing pin 2 and the installing plate 1 and is provided with packing ring 6, be snapped with lower plate 7 and train wheel bridge 8 and lower plate 7 in the housing 3 between housing 3 and train wheel bridge 8, the bottom of lower plate 7 has the first bar shaped projection 9, the upper end of train wheel bridge 8 has the second bar shaped projection 10 that matches with the first bar shaped projection 9, spring 4 upper ends are set on the second bar shaped projection 10, and the bottom is set on the first bar shaped projection 9.
This tensioned instrument is under original state, 6 pairs of bearing pins 2 of axle sleeve 5 and packing ring play the effect of a reinforcing, make installing plate 1 tightr with being connected of housing 3, good stability, in addition, spring 4 is fixed on earlier between lower plate 7 and the train wheel bridge 8, reinstall in the housing 3, the first bar shaped projection 9 and the second bar shaped projection 10 reasonable in design makes that fixing spring 4 is more firm, phenomenons such as axial float, good stability can not appear in spring 4 in the course of the work.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (2)
1. tensioned instrument, comprise installing plate and be installed in housing on the installing plate by bearing pin, spring is installed in the housing, it is characterized in that, pin sleeve is provided with between axle sleeve and bearing pin and the installing plate and is provided with packing ring, be snapped with lower plate and train wheel bridge and lower plate in the housing between housing and train wheel bridge, the bottom of lower plate has the first bar shaped projection, the upper end of train wheel bridge has the second bar shaped projection that matches with the first bar shaped projection, the spring upper end is set on the second bar shaped projection, and the bottom is set on the first bar shaped projection.
2. tensioned instrument according to claim 1 is characterized in that, described surface of shell is coated with layer protective layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320243614 CN203223159U (en) | 2013-05-07 | 2013-05-07 | Spring tensioning tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320243614 CN203223159U (en) | 2013-05-07 | 2013-05-07 | Spring tensioning tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203223159U true CN203223159U (en) | 2013-10-02 |
Family
ID=49250164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320243614 Expired - Fee Related CN203223159U (en) | 2013-05-07 | 2013-05-07 | Spring tensioning tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203223159U (en) |
-
2013
- 2013-05-07 CN CN 201320243614 patent/CN203223159U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131002 Termination date: 20140507 |