CN201923116U - Brake master pump for engineering machinery - Google Patents
Brake master pump for engineering machinery Download PDFInfo
- Publication number
- CN201923116U CN201923116U CN2010206386101U CN201020638610U CN201923116U CN 201923116 U CN201923116 U CN 201923116U CN 2010206386101 U CN2010206386101 U CN 2010206386101U CN 201020638610 U CN201020638610 U CN 201020638610U CN 201923116 U CN201923116 U CN 201923116U
- Authority
- CN
- China
- Prior art keywords
- oil
- assembly
- brake
- pump housing
- oil outlet
- 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
Links
Images
Abstract
The utility model discloses a brake master pump for engineering machinery, which comprises a pump body (14), a piston assembly (21), a barrel-shaped spring (17), a push rod fork assembly (24) and an oil storage cup assembly (19), wherein an oil outlet (15) of the pump body (14) is connected with an oil inlet of a piston oil cylinder of a brake; a check valve assembly (16) is arranged at the position of an inner cavity of the pump body (14), which is positioned at an oil outlet; and the oil flowing direction prevented by the check valve assembly (16) is a direction from the oil outlet (15) to the inside of the cavity of the pump body (14). With the technical scheme, the reliability of the brake system is improved, so that the master pump has residual pressure and the sensitivity of brake is improved; the cost is reduced and the appearance quality is improved, thereby improving the performances of products and prolonging the service life of the products; and a brake fluid transparent mark is arranged on the outer surface of the oil storage cup and can be used for reminding a user of feeding the brake fluid.
Description
Technical field
The utility model belongs to the technical field of construction machinery and equipment, relates to the brake system of fork truck, and more particularly, the utility model relates to a kind of construction machinery and equipment master brake cylinder.
Background technology
Illustrated in figures 1 and 2 as in this Figure of description, construction machinery and equipment of the prior art is made of push rod fork 1, nut 2, push rod 3, dust boot 4, elastic spring 5, pad 6, cylinder body 7, fuel inlet fitting 8, pad 9, locating dowel pin 10, piston assembly 11, seal ring 12, pull back spring 13 etc. with master brake cylinder.
Existing master brake cylinder lubricating cup adopts oil pipe to connect, and oil outlet does not have the boiler check valve function, inner rubber part material out of reach operating needs, and master cylinder is stuck not return easily, influences the service life of the safety performance and the brake pump assembly of brake system.
The utility model content
Problem to be solved in the utility model provides a kind of construction machinery and equipment master brake cylinder, its objective is the reliability that improves brake system.
To achieve these goals, the technical scheme taked of the utility model is:
Construction machinery and equipment master brake cylinder provided by the utility model, comprise the pump housing, piston assembly, barrel-shaped spring, push rod fork assembly and oil storage cup assembly, the oil outlet of the described pump housing is connected with the oil inlet of brake plunger oil cylinder, the position that is positioned at oil outlet at described pump housing inner chamber, be provided with the boiler check valve assembly, it stops the fluid flow direction is to the endoceliac direction of pump from oil outlet.
Described boiler check valve assembly is located at the end of barrel-shaped spring, and the other end of described barrel-shaped spring contacts with described piston assembly.
The housing of described oil storage cup assembly adopts transparent engineering plastics, and its outside face is provided with the scale mark that adds the braking liquid electrolyte level.
The utility model adopts technique scheme, improves the reliability of brake system, makes master cylinder that residual pressure be arranged, and improves the sensitieness of braking; Cost-cutting improves presentation quality, thereby improves the performance and the service life of product; The oil storage cup appearance is provided with and adds the braking liquid clear mark, can remind the user to add braking liquid.
Description of drawings
Below expressed content of each width of cloth accompanying drawing of this specification sheets and the mark among the figure are made brief description:
Fig. 1 is the described prior art constructions scheme drawing of this specification sheets background technology part;
Fig. 2 looks scheme drawing for the right side of structure shown in Figure 1;
Fig. 3 is a structural representation of the present utility model;
Fig. 4 looks scheme drawing for the right side of structure shown in Figure 3.
Be labeled as among the figure:
1, push rod fork, 2, nut, 3, push rod, 4, dust boot, 5, elastic spring, 6, pad, 7, cylinder body, 8, fuel inlet fitting, 9, pad, 10, locating dowel pin, 11, piston assembly, 12, seal ring, 13, pull back spring, 14, the pump housing, 15, oil outlet, 16, the boiler check valve assembly, 17, barrel-shaped spring, 18, O-ring seals, 19, the oil storage cup assembly, 20, spring perch, 21, piston assembly, 22, the hole back-up ring, 23, dust boot, 24, push rod fork assembly.
The specific embodiment
Contrast accompanying drawing below, by description to embodiment, to effect and principle of work, the manufacturing process of the mutual alignment between the shape of the specific embodiment of the present utility model such as related each member, structure, the each several part and annexation, each several part and manipulate method etc., be described in further detail, inventive concept of the present utility model, technical scheme had more complete, accurate and deep understanding to help those skilled in the art.
The of the present utility model structure expressed as Fig. 3, Fig. 4, be a kind of construction machinery and equipment master brake cylinder, comprise the pump housing 14, piston assembly 21, barrel-shaped spring 17, push rod fork assembly 24 and oil storage cup assembly 19, the oil outlet 15 of the described pump housing 14 is connected with the oil inlet of brake plunger oil cylinder.
Between the oil storage cup assembly 19 and the pump housing 14, adopt O-ring seals 18 to seal.In the hole of an end of the pump housing 14, establish the hole with back-up ring 22, limited piston assembly 21 skids off from the chamber of the pump housing 14.And at this end, the dust hood 23 of setting up defences plays preventing that dust from entering the interior effect of oil pocket of the pump housing 14.
In order to solve the problem that exists at the described present known technology of this specification sheets background technology part and to overcome its defective, realize the goal of the invention of the reliability of raising brake system, the technical scheme that the utility model is taked is:
Construction machinery and equipment master brake cylinder provided by the utility model, the position that is positioned at oil outlet at the described pump housing 14 inner chambers is provided with boiler check valve assembly 16, and it stops the fluid flow direction is from the direction of oil outlet 15 in the pump housing 14 chambeies.
The utility model carries out Transform Type design and update to structure of the prior art, and the inner check valve that increases of master cylinder makes master cylinder that residual pressure be arranged, and improves the sensitieness of braking.The inner rubber part adopts new material, and the improvement of Rubber Parts can improve product in-use performance and service life, makes customer satisfaction; Cost-cutting improves performance, improves presentation quality, thereby improves the performance and the service life of product.
Principle of work of the present utility model::
After master cylinder oil storage cup assembly 19 is added to the braking liquid of specified amount, bleed off the air in the master cylinder, then by external influence power on push rod, piston assembly 21 moves forward and produces pressure to brake cylinder, brakes thereby produce.When stick force discharged, braking liquid returned oil storage cup assembly 19.
Boiler check valve assembly 16 described in the utility model is located at the end of barrel-shaped spring 17, and the other end of described barrel-shaped spring 17 contacts with described piston assembly 21.Barrel-shaped spring 17 is installed in the piston assembly 21 by spring perch 20.
The housing of oil storage cup assembly 19 described in the utility model adopts transparent engineering plastics, and its outside face is provided with the scale mark that adds the braking liquid electrolyte level.
The housing of oil storage cup assembly 19 adopts engineering plastics, appearance looks elegant, and outside face has the braking liquid of adding clear mark, can remind the user to add braking liquid.
In conjunction with the accompanying drawings the utility model has been carried out exemplary description above; obviously the utility model specific implementation is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technical scheme carry out; or design of the present utility model and technical scheme are directly applied to other occasion without improving, all within protection domain of the present utility model.
Claims (3)
1. construction machinery and equipment master brake cylinder, comprise the pump housing (14), piston assembly (21), barrel-shaped spring (17), push rod fork assembly (24) and oil storage cup assembly (19), the oil outlet (15) of the described pump housing (14) is connected with the oil inlet of brake plunger oil cylinder, it is characterized in that: in the position that is positioned at oil outlet of the described pump housing (14) inner chamber, be provided with boiler check valve assembly (16), it stops the fluid flow direction is from the direction of oil outlet (15) in the pump housing (14) chamber.
2. according to the described construction machinery and equipment master brake cylinder of claim 1, it is characterized in that: described boiler check valve assembly (16) is located at the end of barrel-shaped spring (17), and the other end of described barrel-shaped spring (17) contacts with described piston assembly (21).
3. according to the described construction machinery and equipment master brake cylinder of claim 1, it is characterized in that: the housing of described oil storage cup assembly (19) adopts transparent engineering plastics, and its outside face is provided with the scale mark that adds the braking liquid electrolyte level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206386101U CN201923116U (en) | 2010-12-02 | 2010-12-02 | Brake master pump for engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206386101U CN201923116U (en) | 2010-12-02 | 2010-12-02 | Brake master pump for engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201923116U true CN201923116U (en) | 2011-08-10 |
Family
ID=44426982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206386101U Expired - Fee Related CN201923116U (en) | 2010-12-02 | 2010-12-02 | Brake master pump for engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201923116U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102029990A (en) * | 2010-12-02 | 2011-04-27 | 芜湖盛力制动有限责任公司 | Braking master cylinder for engineering machinery |
| CN102418759A (en) * | 2011-09-24 | 2012-04-18 | 芜湖众发汽车制动***有限公司 | Double-piston brake master cylinder with double oil storage cups and residual valves |
| CN102418758A (en) * | 2011-09-24 | 2012-04-18 | 芜湖众发汽车制动***有限公司 | Dual-piston brake master cylinder with rear cavity oil storage cup and residual valves |
-
2010
- 2010-12-02 CN CN2010206386101U patent/CN201923116U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102029990A (en) * | 2010-12-02 | 2011-04-27 | 芜湖盛力制动有限责任公司 | Braking master cylinder for engineering machinery |
| CN102418759A (en) * | 2011-09-24 | 2012-04-18 | 芜湖众发汽车制动***有限公司 | Double-piston brake master cylinder with double oil storage cups and residual valves |
| CN102418758A (en) * | 2011-09-24 | 2012-04-18 | 芜湖众发汽车制动***有限公司 | Dual-piston brake master cylinder with rear cavity oil storage cup and residual valves |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201923116U (en) | Brake master pump for engineering machinery | |
| CN102029990A (en) | Braking master cylinder for engineering machinery | |
| CN202402514U (en) | Master cylinder of clutch | |
| CN103133435A (en) | Hydraulic energy accumulator | |
| CN203926500U (en) | The clutch master cylinder of tape guide ring structure | |
| CN204279395U (en) | Master brake cylinder | |
| CN102424042A (en) | Air booster pump structure | |
| CN202900474U (en) | Air filter blocking warning sensor | |
| CN201989779U (en) | Master cylinder of hydraulic brake | |
| CN202251207U (en) | Hydraulic cylinder | |
| CN104149761A (en) | Brake master pump with built-in one-way valve | |
| CN203094046U (en) | Forklift and agricultural machinery brake pumps | |
| CN202348817U (en) | Anti-leakage hydraulic pressure spring oil cylinder | |
| CN201751255U (en) | Proportional valve piston structure | |
| CN203670549U (en) | Hydraulic clutch booster structure | |
| CN205292612U (en) | Gas cap liquid air thrust boosting pump of loader | |
| CN203702477U (en) | Air booster pump of engineering mechanical braking system | |
| CN209557545U (en) | A kind of vehicle braking pump | |
| CN206520606U (en) | A kind of harbour machinery brakes trailer control valve | |
| CN201626393U (en) | Master braking pump structure for novel tractor | |
| CN206429569U (en) | High pressure resistant clutch slave cylinder | |
| CN202300910U (en) | Air booster pump structure | |
| CN204077641U (en) | A kind of brake system of car pedal stroke simulator | |
| CN204477133U (en) | A kind of commercial car membrane type spring braking air chamber for braking system | |
| CN104477157A (en) | Air-assisted hydraulic air booster pump for magnetically levitated train |
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: 20110810 Termination date: 20141202 |
|
| EXPY | Termination of patent right or utility model |