阅读说明：本技术 轻卡汽车用中心阀结构的离合泵 (Clutch pump of center valve structure for light truck ) 是由 曹正杰 于 2019-10-08 设计创作，主要内容包括：本发明提供基于轻卡汽车用中心阀结构的离合泵,包括缸体,活塞,阀杆,密封圈,档销,档销卡圈,档销弹簧,小弹簧,孔用弹性卡簧,垫片,中心阀配合活动限位档销通过添加一件或多件垫片调节中心阀密封圈与活塞密封面之间间隙,保证液压油往返通道的通畅性,以及保证迅速关闭通道建立液压的时间,提高离合泵性能,保证离合泵工作稳定性,另外由于取消了补偿孔式离合泵的补偿孔,避免了密封皮圈往返运动经补偿孔造成的磨损,提升了产品的使用寿命,降低了因维护车辆产生的各项费用,提高了产品的知名度,间接提升了各类效益。(The invention provides a clutch pump based on a center valve structure for a light truck, which comprises a cylinder body, a piston, a valve rod, a sealing ring, a stop pin retainer ring, a stop pin spring, a small spring, an elastic clamp spring for a hole, a gasket, a center valve and a movable limit stop pin, wherein the gap between the sealing ring of the center valve and the sealing surface of the piston is adjusted by adding one or more gaskets to ensure the smoothness of a hydraulic oil back-and-forth channel and the time for rapidly closing the channel and establishing hydraulic pressure, so that the performance of the clutch pump is improved, and the working stability of the clutch pump is ensured.)

1. Clutch pump based on center valve structure for light truck, its characterized in that: the valve rod positioning device comprises a sealing ring (4) and a stop pin (5), wherein the sealing ring (4) and a valve inlet rod (3) form a central valve, and a positioning column (302) of the valve rod (3) is arranged in a valve rod movable hole (206) of a piston (2); the two ends of the stop pin (5) are provided with clamping grooves, the stop pin (5), a stop pin retainer ring (6), a gasket (10) and a stop pin spring (7) are assembled and installed on the small diameter (203) of the piston (2), the stop pin (5) is located in a stop pin movable hole (202) of the piston (2), and the stop pin (5) acts on the tail end of a positioning column (302) of the valve rod (3).

2. The clutch pump based on the center valve structure for the light truck as claimed in claim 1, wherein: the valve surface sealing platform is characterized in that a circular plane type valve surface sealing platform (201) and a circular hole type valve rod movable hole (206) which are concentric with the piston (2) are arranged at the bottom of an inner hole at the left end of the piston (2), a long-slotted-hole type stop pin movable hole (202) is formed in a piston thin diameter (203) at the right end of the piston (2), the valve surface sealing platform (201) is communicated with the valve rod movable hole (206) and the pin movable hole (202), symmetrical auxiliary holes (205) are formed in the left side and the right side of the valve rod movable hole (206), and a spring limiting platform (204) is arranged on the maximum excircle diameter of the right end of the piston (2) and connected with the piston thin diameter.

3. The clutch pump based on the center valve structure for the light truck as claimed in claim 1, wherein: the left end of the valve rod (3) is provided with a concentric circular positioning groove (301) smaller than the excircle, and the right end of the valve rod (3) is provided with a concentric triangular prism-shaped positioning column (302) smaller than the diameter; the right end face of the sealing ring (4) is provided with a second arc annular sealing ring (402) protruding from the end face, and the inner hole of the left end of the sealing ring (4) is provided with a first square annular sealing ring (401) smaller than the inner hole.

4. The clutch pump based on the center valve structure for the light truck as claimed in claim 1, wherein: a first sealing ring (401) of the sealing ring (4) is sleeved into a positioning groove (301) of the valve rod (3) to form a sealing belt, and a positioning column (302) of the valve rod (3) is located in a stop pin moving hole (202) of the piston (2) through the tail end of a valve rod moving hole (206) of the piston (2).

5. The clutch pump based on the center valve structure for the light truck as claimed in claim 1, wherein: the left end of the stop pin clamping ring (6) is provided with a circular ring-shaped spring limiting table (602), and the right end of the stop pin clamping ring (6) is provided with symmetrical open stop pin clamping grooves (601); and the stop pin spring (7) and the gasket (10) are combined with the excircle of a spring limiting table (602) of the stop pin clamping ring (6) through an inner hole and are sleeved on the excircle of a piston small diameter (203) of the piston (2), the left end of the stop pin spring (7) is in contact limiting with the spring limiting table (204) of the piston (2), and meanwhile, the stop pin (5) penetrates through a pin moving hole (402) of the piston (2) to clamp an open stop pin clamping groove (601) of the stop pin clamping ring (6) into clamping grooves at two ends of the stop pin (5).

Technical Field

The invention belongs to the technical field of automobile brake systems, and particularly relates to a clutch pump based on a central valve structure for a light truck.

Background

Along with the rapid development of modern economy, the pace of life is accelerated, more and more people pay attention to the improvement of the quality of life, the safe and healthy family happiness index, the rapid and convenient living habit, the convenience and centralization of materials required by life, the circulation of materials in the north of the south of the sky and the sea is not separated from a transport vehicle, the transport vehicle needs to change gears in time to improve or reduce the speed of the vehicle to deal with the accompanying sudden situation along with the reduction of physical ability of a driver who drives for a long time, the generation of fatigue, the abrasion caused by the long-time use of the vehicle, the driving safety and the change of roads, so that the hydraulic oil needs to be ensured to be quickly conveyed to a clutch branch pump through a high-pressure pipeline, the pressure of the hydraulic oil is applied to a plunger cup in the clutch branch pump, thereby pushing a plunger rod and pushing a separation lever to move forwards, thereby promote release bearing and depress the release lever, realize the clutch and cut off engine and transmission's power separation, when lifting the clutch footboard, hydraulic oil process high pressure line, the clutch pump returns the oil storage cup fast, and power combines, and the center valve formula structure just can accord with above-mentioned requirement completely, provides quick oil extraction and returns oil, improves the quick reaction of clutch separation, satisfies the quick frequent switching gear under the complicated road conditions of driver.

Based on the above: the existing clutch pump similar to the structure and used for the light truck has the defects that the speed of oil discharge and oil return is low, the pedal stroke is increased along with long-time use, hydraulic oil cannot be supplemented in time when the pedal is frequently stepped, the clutch is too slow to cause damage to the vehicle, the service life of the vehicle is reduced, the danger coefficient of a driver is enlarged, a common center valve adopts a sealing ring end surface to be of a plane ring structure, a piston adopts a convex type to be in contact sealing with the piston, the inner hole of the piston is small, the difficulty of the processing coefficient of the piston is high, the rejection rate is increased, the processing time is long, the processing cost is increased, the stability of a gap between the piston and the center valve is difficult to control, and the waste.

in view of the above, the present invention is to provide a clutch pump based on a center valve structure for a light truck, which is improved in view of the conventional structure and disadvantages, so as to achieve the purpose of higher practical value.

Disclosure of Invention

In order to solve the technical problems, the invention provides a clutch pump based on a center valve structure for a light truck to solve the problems that the existing clutch pump for the light truck with the structure is low in oil discharging and returning speed, the pedal stroke is increased along with long-time use, hydraulic oil cannot be supplemented timely when a pedal is frequently stepped on, the clutch is too slow to separate, the vehicle is damaged, the service life of the vehicle is shortened, and the danger coefficient of a driver is enlarged.

The invention is used for the purpose and the effect of a clutch pump based on a central valve structure for a light truck, and is achieved by the following specific technical means:

The clutch pump based on the center valve structure for the light truck comprises a cylinder body, a piston, a valve face sealing platform, a stop pin moving hole, a piston small diameter, a spring limiting platform, an auxiliary hole, a valve rod moving hole, a valve rod, a positioning groove, a positioning column, a sealing ring, a first sealing ring, a second sealing ring, a stop pin clamping ring, a stop pin clamping groove, a spring limiting platform, a stop pin spring, a small spring, an elastic clamp spring for a hole and a gasket, wherein the sealing ring and a valve inlet rod form a center valve and are arranged in the valve rod moving hole of the piston; the two ends of the stop pin are provided with clamping grooves, the stop pin clamping ring, the gasket and the stop pin spring are assembled and installed on the small diameter of the piston, the stop pin is located in the stop pin moving hole of the piston, and the stop pin acts on the tail end of the positioning column of the valve rod.

further: the piston is characterized in that a valve face sealing table and a round hole type valve rod moving hole which are concentric with the piston are arranged at the bottom of an inner hole at the left end of the piston, a long slotted hole type stop pin moving hole is formed in the piston thin diameter at the right end of the piston, the valve face sealing table is communicated with the valve rod moving hole and the pin moving hole, symmetrical auxiliary holes are formed in the left side and the right side of the valve rod moving hole, and a spring limiting table is arranged on the maximum excircle diameter at the right end of the piston and connected with the piston thin diameter.

Further: the left end of the valve rod is provided with a concentric circular ring-shaped positioning groove smaller than the excircle, the positioning groove is provided, and the right end of the valve rod is provided with a triangular prism-shaped positioning column smaller than the diameter and concentric with the diameter; the right end face of the sealing ring is provided with a circular arc annular sealing ring II protruding from the end face, and the inner hole of the left end of the sealing ring is provided with a square annular sealing ring I smaller than the inner hole.

Further: and a sealing ring I of the sealing ring is sleeved in the positioning groove of the valve rod to form a sealing belt, and the positioning column of the valve rod is positioned in the stop pin movable hole of the piston through the tail end of the valve rod movable hole of the piston.

Further: the left end of the stop pin clamping ring is provided with a circular spring limiting table, and the right end of the stop pin clamping ring is provided with open stop pin clamping grooves which are bilaterally symmetrical; and the stop pin spring and the gasket are combined with the outer circle of the spring limiting table of the stop pin clamping ring through an inner hole and are sleeved on the outer circle of the piston with the small diameter, the left end of the stop pin spring is in contact limiting with the spring limiting table of the piston, and meanwhile, the stop pin penetrates through a pin moving hole of the piston to clamp the open stop pin clamping groove of the stop pin clamping ring into the clamping grooves at the two ends of the stop pin.

compared with the prior art, the invention has the following beneficial effects:

According to the structural improvement of the clutch pump with the compensation hole type structure, the clutch pump with the central valve structure for the light truck is more reasonable than the clutch pump with the compensation hole structure which is commonly used at present, the clutch pump with the central valve structure for the light truck is characterized in that the sealing end surface of a sealing ring of a central valve and the sealing surface of a sealing ring of a piston central valve are mutually arranged, the sealing end surface of the sealing ring of the central valve is provided with a convex ring, the sealing surface of the sealing ring of the piston central valve is changed into a plane ring type, the processing difficulty is reduced, the rejection rate is reduced, the processing speed is improved, the stability of a gap between the sealing surface of the central valve and the sealing surface of the piston is ensured, in addition, the gap between the sealing ring of the central valve and the sealing surface of the piston is adjusted by adding one or more gaskets by matching with a movable limiting stop pin of, the performance of the clutch pump is improved, the working stability of the clutch pump is ensured, in addition, the compensation hole of the compensation hole type clutch pump is cancelled, the abrasion caused by the reciprocating motion of the sealing leather ring through the compensation hole is avoided, the service life of the product is prolonged, the cost for maintaining the vehicle is reduced, the popularity of the product is improved, and various benefits are simply improved.

Drawings

FIG. 1 is a schematic view of the assembled anatomy of a portion of the assembly of the present invention.

fig. 2 is a schematic view of the piston anatomy of the present invention.

FIG. 3 is a schematic view of a seal and valve stem combination of the present invention.

Fig. 4 is a schematic view of the structure of the valve stem of the present invention.

FIG. 5 is a schematic view of the latch clip of the present invention.

Fig. 6 is a schematic view showing the assembling relationship of the main components of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. The piston comprises a cylinder body, 2, a piston, 201, a valve face sealing platform, 202, a stop pin movable hole, 203, a piston small diameter, 204, a spring limiting platform, 205, an auxiliary hole, 206, a valve rod movable hole, 3, a valve rod, 301, a positioning groove, 302, a positioning column, 4, a sealing ring, 401, a sealing ring I, 402, a sealing ring II, 5, a stop pin, 6, a stop pin clamping ring, 601, a stop pin clamping groove, 602, a spring limiting platform, 7, a stop pin spring, 8, a small spring, 9, a hole elastic clamping spring, 10 and a gasket 10.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "left end", "right end", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.