CN201952156U - Front-clamping prestressing hydraulic jack - Google Patents
Front-clamping prestressing hydraulic jack Download PDFInfo
- Publication number
- CN201952156U CN201952156U CN2011200242271U CN201120024227U CN201952156U CN 201952156 U CN201952156 U CN 201952156U CN 2011200242271 U CN2011200242271 U CN 2011200242271U CN 201120024227 U CN201120024227 U CN 201120024227U CN 201952156 U CN201952156 U CN 201952156U
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- plug
- hydraulic jack
- nut
- piston
- hold
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- Expired - Fee Related
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Abstract
The utility model provides a front-clamping prestressing hydraulic jack and relates to prestress tensioning equipment. The front-clamping prestressing hydraulic jack comprises an oil cylinder with a handle, a compression nut, a plug and a piston which are arranged in the oil cylinder in turn, and a center-through pull rod arranged in a piston hole. The tail end of the piston is connected with a support sleeve; one end of the center-through pull rod is provided with a connector used for connecting an anchor cup, while the other end is connected with a locking nut; and the locking nut is positioned between the compression nut and the plug, and has a convex structure; the compression nut and the plug respectively have a concave structure; and the convex locking nut is clamped in grooves of the concave compression nut and plug. The front-clamping prestressing hydraulic jack is compact in structure, has the characteristics of simplified processing steps, convenience of assembly, short whole machine and reliable structure, and is suitable for construction of various prestressed projects.
Description
Technical field
The utility model relates to a kind of prestress tensioning equipment, particularly a kind of preceding cassette prestress hydraulic jack.
Background technology
In the construction of prestress engineering, cassette prestress hydraulic jack before will using usually.Cassette prestress hydraulic jack comprises the oil cylinder that has handle, is installed in in-oil cylinder hold-down nut, plug, piston and be installed in punching pull bar, connector in the piston hole successively before existing, described punching pull bar and connector generally all are by being threaded, the structure of this jack is compact inadequately, and punching pull bar and connector need shape respectively, its procedure of processing is more, the time also need both by being threaded togather in assembling, assembling is inconvenience relatively.
Summary of the invention
The technical problems to be solved in the utility model is: provide a kind of preceding cassette prestress hydraulic jack, to solve the weak point that structure is compact inadequately, procedure of processing is more, assembling is inconvenient that exists in the prior art.
The technical scheme that solves the problems of the technologies described above is: cassette prestress hydraulic jack before a kind of, comprise the oil cylinder that has handle, be installed in in-oil cylinder hold-down nut, plug, piston and be installed in punching pull bar in the piston hole successively, the end joint connection of piston has support sleeve, one end of described punching pull bar is provided with the connector that is used to connect the anchor cup, the other end of punching pull bar is connected with jam nut, and jam nut is between hold-down nut and plug.
Further technical scheme of the present utility model is: described jam nut is the convex shape structure, and hold-down nut, plug are respectively the concave shape structure, and described convex shape jam nut is stuck in the groove of concave shape hold-down nut, plug.
Owing to adopt said structure, cassette prestress hydraulic jack is compared with existing preceding cassette prestress hydraulic jack before the utility model, has following beneficial effect:
1, compact conformation:
Because punching pull bar one end of cassette prestress hydraulic jack is provided with the connector that is used to connect the anchor cup before the utility model, promptly is that the utility model is integrated in one punching pull bar and connector, its structure is compact.
2, procedure of processing is simplified, and is convenient to assembling:
Because punching pull bar one end of cassette prestress hydraulic jack is provided with the connector that is used to connect the anchor cup before the utility model, promptly be that the utility model is integrated in one punching pull bar and connector, therefore, need not man-hour punching pull bar and connector are processed respectively adding, also need not difference machining screw on punching pull bar and connector, therefore, the utility model can be simplified its procedure of processing; And, also need not punching pull bar and connector to assemble more convenient by being threaded togather in when assembling.
3, reduce length:
Because jam nut of the present utility model is the convex shape structure, hold-down nut, plug are respectively the concave shape structure, and described convex shape jam nut is stuck in the groove of concave shape hold-down nut, plug; Therefore, this uneven structure can make structure compact more, thereby reduces the length of whole jack.
4, reliable in structure:
Because jam nut of the present utility model is the convex shape structure, hold-down nut, plug are respectively the concave shape structure, and described convex shape jam nut is stuck in the groove of concave shape hold-down nut, plug.Therefore, the jam nut of this jack can be stuck in the groove of hold-down nut, plug tightly, thereby can prevent that jam nut from becoming flexible, and its structure is reliable.
Below, the technical characterictic to cassette prestress hydraulic jack before the utility model is further described in conjunction with the accompanying drawings and embodiments.
Description of drawings
The structural representation of cassette prestress hydraulic jack before Fig. 1: embodiment one described the utility model.
Among the figure:
The 1-oil cylinder, the 101-handle, the 2-hold-down nut, the 3-jam nut,
The 4-plug, the 5-piston, 6-punching pull bar, the 601-connector,
7-anchor cup, 8-instrument intermediate plate, 9-support sleeve.
The specific embodiment
Embodiment one:
Disclosed among Fig. 1 is a kind of preceding cassette prestress hydraulic jack, this jack comprises the oil cylinder 1 that has handle 101, is installed in hold-down nut 2, plug 4, the piston 5 in the oil cylinder 1 and be installed in punching pull bar 6 in the piston hole successively, the end joint connection of piston 5 has support sleeve 9, one end of described punching pull bar 6 is provided with the connector 601 that is used to connect anchor cup 7, the end and the connector 7 that promptly are punching pull bar 6 are integral structure, and instrument intermediate plate 8 is installed in the anchor cup 7; The other end of described punching pull bar 6 is connected with jam nut 3, and this jam nut 3 is the convex shape structure, and hold-down nut 2, plug 4 are respectively the concave shape structure, and described convex shape jam nut 3 is stuck in the groove between concave shape hold-down nut 2, the plug 4.
Certainly, as a kind of conversion of present embodiment, described jam nut 3, hold-down nut 2, plug 4 also can be other structures, but jam nut 3 need be between hold-down nut 2 and plug 4.
Claims (2)
1. cassette prestress hydraulic jack before a kind, comprise the oil cylinder (1) that has handle (101), be installed in the hold-down nut (2) in the oil cylinder (1) successively, plug (4), piston (5) and be installed in punching pull bar (6) in the piston hole, the end joint connection of piston (5) has support sleeve (9), it is characterized in that: an end of described punching pull bar (6) is provided with the connector (601) that is used to connect anchor cup (7), the other end of punching pull bar (6) is connected with jam nut (3), and jam nut (3) is positioned between hold-down nut (2) and the plug (4).
2. cassette prestress hydraulic jack before according to claim 1, it is characterized in that: described jam nut (3) is the convex shape structure, hold-down nut (2), plug (4) are respectively the concave shape structure, and described convex shape jam nut (3) is stuck in the groove of concave shape hold-down nut (2), plug (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200242271U CN201952156U (en) | 2011-01-25 | 2011-01-25 | Front-clamping prestressing hydraulic jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200242271U CN201952156U (en) | 2011-01-25 | 2011-01-25 | Front-clamping prestressing hydraulic jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201952156U true CN201952156U (en) | 2011-08-31 |
Family
ID=44496278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200242271U Expired - Fee Related CN201952156U (en) | 2011-01-25 | 2011-01-25 | Front-clamping prestressing hydraulic jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201952156U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103274329A (en) * | 2013-05-29 | 2013-09-04 | 南京工程学院 | Jacking-and-pulling jack and construction method applying jacking-and-pulling jack to pile-anchor support |
| CN103364276A (en) * | 2012-03-31 | 2013-10-23 | 田剑东 | Intelligent synchronous tension detection device of pre-stress under anchor |
-
2011
- 2011-01-25 CN CN2011200242271U patent/CN201952156U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364276A (en) * | 2012-03-31 | 2013-10-23 | 田剑东 | Intelligent synchronous tension detection device of pre-stress under anchor |
| CN103364276B (en) * | 2012-03-31 | 2015-08-26 | 田剑东 | A kind of anchor lower prestress intelligent synchronization tension test device |
| CN103274329A (en) * | 2013-05-29 | 2013-09-04 | 南京工程学院 | Jacking-and-pulling jack and construction method applying jacking-and-pulling jack to pile-anchor support |
| CN103274329B (en) * | 2013-05-29 | 2016-03-23 | 南京工程学院 | A kind of top draws jack for the construction method of pile-anchor retaining |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: LIUZHOU JIANQIAO PRESTRESS INTELLIGENT EQUIPMENT C Free format text: FORMER OWNER: LIUZHOU JIANQIAO PRESTRESS MACHINERY PLANT Effective date: 20140213 |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140213 Address after: 545100 the Guangxi Zhuang Autonomous Region Sun Village hilltop village Liunan District, Liuzhou City metropolitan Lake Tuen No. 2 Patentee after: LIUZHOU JIANQIAO PRESTRESSING FORCE INTELLIGENT EQUIPMENT CO., LTD. Address before: 545100 the Guangxi Zhuang Autonomous Region the Liujiang River County of Liuzhou City, the first industrial zone raborg Li Guo Lu Wei Patentee before: Liuzhou Jianqiao Prestress Machinery Plant |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20160125 |
|
| EXPY | Termination of patent right or utility model |