CN202055227U - Self-locking device of hydraulic hoist - Google Patents
Self-locking device of hydraulic hoist Download PDFInfo
- Publication number
- CN202055227U CN202055227U CN2011201046644U CN201120104664U CN202055227U CN 202055227 U CN202055227 U CN 202055227U CN 2011201046644 U CN2011201046644 U CN 2011201046644U CN 201120104664 U CN201120104664 U CN 201120104664U CN 202055227 U CN202055227 U CN 202055227U
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- China
- Prior art keywords
- piston
- inner chamber
- oil cylinder
- positioning
- piston rod
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- Expired - Fee Related
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Abstract
The utility model discloses a self-locking device of a hydraulic hoist and relates to the field of a structure of the hydraulic hoist. The self-locking device comprises an oil cylinder barrel, a piston, a piston rod and an oil cylinder rear cover, wherein the rear end of the piston rod is inserted outside the piston; the piston rod at the rear side of the piston is radially provided with a positioning groove; an axial groove is arranged inside the oil cylinder rear cover; the oil cylinder rear cover is provided with at least one group of spring cylinders; each group of spring cylinder comprises a first inner cavity, a second inner cavity, a screw plug, a positioning spring, a positioning piston and a positioning steel ball; the diameter of one end of the second inner cavity is greater than that of the other end of the second inner cavity; the screw plug and the positioning spring are arranged in the first inner cavity; the positioning piston comprises a piston body; the piston body is integrally provided with an outwards convex limit step; the piston body is arranged in the second inner cavity; the limit step is arranged in the first inner cavity; the positioning steel ball is arranged in the small-diameter end of the second inner cavity; and the positioning steel ball can be separately arranged in the positioning groove of the piston rod. The self-locking device of the hydraulic hoist has the advantages of being capable of maintaining the pressure for a long time, being flexible to open and close, having stable performance and the like; and the self-locking device has a simple structure.
Description
Technical field
The utility model relates to the structure field of hydraulic hoist.
Background technology
Hydraulic hoist has two kinds of integrated hydraulic hoists and split type hydraulic hoists, is applicable to the gate of various middle-size and small-size water conservancies, water station and municipal engineering, is to be organically combined by hydraulic system and hydraulic jack two parts to form.Forward and backward realization hydraulic jack by motor under electrical equipment control is done axially reciprocating, drives the connecting rod and the gate that are connected on the piston rod and moves reciprocatingly, and reaches the purpose of unlatching, closed shutter.At present the hydraulic control valve great majority adopt the plug-in mounting technology on the integrated hydraulic hoists, and cartridge valve has that the combination function is strong, integrated level is high, noise is low, good airproof performance, mechanism's compactness, advantage such as easy to maintenance.The hydraulic control valve great majority adopt overflow valve, flow speed control valve, hydraulic control one-way valve, solenoid operated directional valve on the present split type hydraulic hoist.
No matter be the also split type hydraulic hoist of integrated hydraulic hoists, all have following defective: self-locking property is poor, especially has deadweight to hang for a long time, can not lock gate for a long time.Must rely on the pressurize of electrical equipment Fraquent start motor fuel feeding, or not allow downslide to the gate location by external force.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiencies in the prior art, the self-locking device of the hydraulic hoist of the long-term self-locking of a kind of energy to be provided.
The purpose of this utility model is achieved in that the self-locking device of hydraulic hoist, comprise cylinder tube, piston, piston rod and oil cylinder bonnet, piston is equipped with in cylinder tube, piston rod is set in the cylinder tube, fixedly connected with piston in the rear end of piston rod, the oil cylinder bonnet is fixedly connected on the rear end of cylinder tube; The rear end of described piston rod is set in outside the piston, and locating slot radially is set on the piston rod of piston rear side; The inboard of described oil cylinder bonnet is provided with the axial notch that matches with the piston rod rear end, and at least one group of spring cylinder is set on the oil cylinder bonnet; Every group of spring cylinder comprises first inner chamber respectively, second inner chamber, vice, retainer spring, positioning piston and positioning ball, first inner chamber and second inner chamber radially are arranged in the oil cylinder bonnet, one end diameter of second inner chamber is greater than other end diameter, the second inner chamber larger diameter end is connected with first inner chamber, the second inner chamber smaller diameter end is connected with the axial notch of oil cylinder bonnet, vice and retainer spring are arranged in first inner chamber, vice is threaded with described oil cylinder bonnet, retainer spring is arranged between vice and the positioning piston, positioning piston comprises piston only, disjunctor is provided with the limited step of outside protrusion on the piston only, piston only is arranged in second inner chamber, limited step is arranged in first inner chamber, the diameter of limited step is greater than the diameter of the second inner chamber larger diameter end, positioning ball is arranged in the second inner chamber smaller diameter end, and positioning ball is detachable to be arranged in the locating slot of described piston rod.
When the oil cylinder piston bar ran to end of travel, the positioning ball of spring cylinder imported in the piston rod rear portion locating slot of oil cylinder, utilized spring cylinder locking, and headstock gear is in the mechanical interlocking state.When gate need be closed or oil cylinder when stretching out, oil cylinder rear portion fuel feeding, spring cylinder is opened rapidly, the headstock gear oil cylinder piston is under system's rated pressure effect, positioning ball withdraws from the locating slot of piston rod, the headstock gear oil cylinder stretch out or gate descending.The utlity model has long-term pressurize, open and close flexible, steady performance, simple in structure, need not to set up Hydraulic Station and pump house, easy for installation, the on-the-spot power supply of connecting gets final product work, can replace present screw open-close machine.
When hydraulic hoist when being split type, for making things convenient for the utility model to be installed in the oil cylinder bonnet, the fixedly connected location cylinder body that equates with spring cylinder quantity in the outside of described oil cylinder bonnet, each locate cylinder body respectively with the first corresponding intracavity inter-connection, described each vice is threaded with corresponding location cylinder body.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is an I portion enlarged drawing among Fig. 1.
Fig. 3 be among Fig. 1 A-A to view.
Fig. 4 is an another kind of structural representation of the present utility model.
Fig. 5 is an II portion enlarged drawing among Fig. 4.
Fig. 6 be among Fig. 4 B-B to view.
Among the figure, 1 oil tube, 2 cylinder tubes, 3 piston rods, 4 pistons, 5 spring cylinders, 6 oil cylinder bonnets, 6-1 axial notch, 7 positioning pistons, 7-1 piston only, 7-2 limited step, 8 positioning balls, 9 second inner chambers, 10 first inner chambers, 11 retainer springs, 12 vices, 13 location cylinder bodies.
The specific embodiment
As Fig. 1,2, shown in 3, the utility model is installed on the integrated hydraulic hoists, comprise oil tube 1, cylinder tube 2, piston 4, piston rod 3 and oil cylinder bonnet 6, cylinder tube 2 is set in the oil tube 1, piston 4 is equipped with in cylinder tube 2, piston rod 3 is set in the cylinder tube 2, fixedly connected with piston 4 in the rear end of piston rod 3, the rear end of piston rod 3 is set in outside the piston 4, on the piston rod 3 of piston 4 rear sides locating slot 3-1 is set radially, oil cylinder bonnet 6 is welded on the rear end of oil tube 1 and cylinder tube 2, and the inboard of oil cylinder bonnet 6 is provided with the axial notch 6-1 that matches with piston rod 3 rear ends, and three groups of spring cylinders 5 are set on the oil cylinder bonnet 6.Every group of spring cylinder 5 comprises first inner chamber 10 respectively, second inner chamber 9, vice 12, retainer spring 11, positioning piston 7 and positioning ball 8, first inner chamber 10 and second inner chamber 9 radially are arranged in the oil cylinder bonnet 6, one end diameter of second inner chamber 9 is greater than other end diameter, second inner chamber, 9 larger diameter end are connected with first inner chamber 10, second inner chamber, 9 smaller diameter end are connected with the axial notch 6-1 of oil cylinder bonnet 6, vice 12 and retainer spring 11 are arranged in first inner chamber 10, vice 12 is threaded with oil cylinder bonnet 6, retainer spring 11 is arranged between vice 12 and the positioning piston 7, positioning piston 7 comprises piston only 7-1, piston only 7-1 goes up the limited step 7-2 that disjunctor is provided with outside protrusion, piston only 7-1 is arranged in second inner chamber 9, limited step 7-2 is arranged in first inner chamber 10, the diameter of limited step 7-2 is greater than the diameter of second inner chamber, 9 larger diameter end, positioning ball 8 is arranged in second inner chamber, 9 smaller diameter end, and positioning ball 9 is detachable to be arranged in the locating slot 3-1 of piston rod 3.
Shown in Fig. 4,5,6, the utility model is installed on the split type hydraulic hoist, three location of welding, the outside of oil cylinder bonnet 6 cylinder bodies 13, each is located cylinder body 13 and is connected with corresponding first inner chamber 10 respectively, and each vice 12 is threaded with corresponding location cylinder body 13.All the other structures are with embodiment 1, and split type hydraulic hoist does not have oil tube 1.
Claims (2)
1. the self-locking device of hydraulic hoist, comprise cylinder tube, piston, piston rod and oil cylinder bonnet, piston is equipped with in cylinder tube, and piston rod is set in the cylinder tube, fixedly connected with piston in the rear end of piston rod, the oil cylinder bonnet is fixedly connected on the rear end of cylinder tube; It is characterized in that: the rear end of described piston rod is set in outside the piston, and locating slot radially is set on the piston rod of piston rear side; The inboard of described oil cylinder bonnet is provided with the axial notch that matches with the piston rod rear end, and at least one group of spring cylinder is set on the oil cylinder bonnet; Every group of spring cylinder comprises first inner chamber respectively, second inner chamber, vice, retainer spring, positioning piston and positioning ball, first inner chamber and second inner chamber radially are arranged in the oil cylinder bonnet, one end diameter of second inner chamber is greater than other end diameter, the second inner chamber larger diameter end is connected with first inner chamber, the second inner chamber smaller diameter end is connected with the axial notch of oil cylinder bonnet, vice and retainer spring are arranged in first inner chamber, vice is threaded with described oil cylinder bonnet, retainer spring is arranged between vice and the positioning piston, positioning piston comprises piston only, disjunctor is provided with the limited step of outside protrusion on the piston only, piston only is arranged in second inner chamber, limited step is arranged in first inner chamber, the diameter of limited step is greater than the diameter of the second inner chamber larger diameter end, positioning ball is arranged in the second inner chamber smaller diameter end, and positioning ball is detachable to be arranged in the locating slot of described piston rod.
2. the self-locking device of hydraulic hoist according to claim 1, it is characterized in that: the fixedly connected location cylinder body that equates with spring cylinder quantity in the outside of described oil cylinder bonnet, each locate cylinder body respectively with the first corresponding intracavity inter-connection, described each vice is threaded with corresponding location cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201046644U CN202055227U (en) | 2011-04-12 | 2011-04-12 | Self-locking device of hydraulic hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201046644U CN202055227U (en) | 2011-04-12 | 2011-04-12 | Self-locking device of hydraulic hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202055227U true CN202055227U (en) | 2011-11-30 |
Family
ID=45015204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201046644U Expired - Fee Related CN202055227U (en) | 2011-04-12 | 2011-04-12 | Self-locking device of hydraulic hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202055227U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108951564A (en) * | 2016-09-12 | 2018-12-07 | 葛海燕 | A kind of combined type headstock gear for control valve |
-
2011
- 2011-04-12 CN CN2011201046644U patent/CN202055227U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108951564A (en) * | 2016-09-12 | 2018-12-07 | 葛海燕 | A kind of combined type headstock gear for control valve |
| CN108951565A (en) * | 2016-09-12 | 2018-12-07 | 葛海燕 | Combined type headstock gear for control valve |
| CN108951563A (en) * | 2016-09-12 | 2018-12-07 | 葛海燕 | Headstock gear for control valve |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111130 Termination date: 20170412 |