CN216272766U

CN216272766U - Hand control valve for automobile

Info

Publication number: CN216272766U
Application number: CN202122711493.8U
Authority: CN
Inventors: 崔平川
Original assignee: Ningbo Fenghua Jiayuan Pneumatic Co ltd
Current assignee: Ningbo Jiayuan Haiwo Machinery Co ltd
Priority date: 2021-11-08
Filing date: 2021-11-08
Publication date: 2022-04-12
Anticipated expiration: 2031-11-08

Abstract

The utility model relates to an automobile manual control valve, which comprises a valve body, a valve cover fixed at the top of the valve body, and a handle and a switch which are movably arranged in the valve cover, wherein the valve body comprises a valve block, and a main piston, a first auxiliary piston and a second auxiliary piston which are movably arranged at the top of the valve block; the handle is matched with the main piston and the first auxiliary piston, and the switch is matched with the second auxiliary piston; the utility model simplifies the internal structure of the valve block to greatly reduce the processing steps, thereby improving the production efficiency, and simultaneously, the volume of the valve block is obviously reduced to effectively reduce the material consumption, thereby reducing the production cost.

Description

Hand control valve for automobile

Technical Field

The utility model relates to an automobile manual valve.

Background

The manual valve is a key device which is used for controlling the lifting arm to ascend, descend and stop on the mobile crane truck by means of air pressure; the hand control valve mainly comprises a valve body, a switch and a handle, wherein the valve body mainly comprises a valve block and a plurality of pistons, the switch can be mutually matched with corresponding pistons on the valve body to control the on-off of air pressure, and the handle can be mutually matched with corresponding pistons arranged on the valve body to control the trend of the air pressure; the valve block of the existing manual control valve has a complex internal structure, so that the number of processing steps is large, the production efficiency is low, the size of the valve block is large, the material consumption is increased, the production cost is increased, and the manual control valve is to be further improved.

SUMMERY OF THE UTILITY MODEL

In view of the current situation of the prior art, the technical problem to be solved by the present invention is to provide an automobile manual valve with improved production efficiency and reduced production cost.

The technical scheme adopted by the utility model for solving the technical problems is as follows: an automobile manual control valve comprises a valve body, a valve cover fixed on the top of the valve body, a handle and a switch, wherein the handle and the switch are movably arranged in the valve cover; the valve block is characterized in that the top of the valve block is provided with a first counter bore, a second counter bore and a third counter bore, the main piston, the first auxiliary piston and the second auxiliary piston are respectively and movably arranged in the first counter bore, the second counter bore and the third counter bore, and the peripheral surface of the top of the main piston is provided with ventilation grooves distributed annularly; a first through hole is formed between the inner walls of the openings at the tops of the first counter bore and the second counter bore; a second through hole is formed between the inner walls of the openings at the tops of the first counter bore and the third counter bore, an air inlet hole, a first air outlet hole, a second air outlet hole and a third air outlet hole are formed at the bottom of the valve block, and a third through hole is formed between the second air outlet hole and the inner wall at the bottom of the first counter bore; a fourth counter bore is formed in the center of the bottom surface of the second counter bore, a fourth through hole is formed between the first air outlet hole and the inner wall of the fourth counter bore, a fifth counter bore is formed in the center of the bottom surface of the third counter bore, a fifth through hole is formed between the air inlet hole and the inner wall of the fifth counter bore, and a sixth through hole is formed between the third air outlet hole and the inner wall of the fifth counter bore; and a seventh through hole is formed between the first air outlet hole and the inner wall of the fifth counter bore.

Preferably, a first spring is further arranged in the first counterbore, the first spring is arranged below the main piston, and the upper end and the lower end of the first spring are respectively tightly propped against the bottom of the main piston and the bottom surface of the first counterbore.

Preferably, a first valve core is formed downwards in the center of the bottom of the first secondary piston, the first valve core is movably inserted into the fourth counterbore, a second spring is further sleeved on the first valve core, and the upper end and the lower end of the second spring are respectively tightly propped against the bottom of the first secondary piston and the bottom surface of the fourth counterbore.

Preferably, a second valve core is formed downwards in the center of the bottom of the second slave piston, the second valve core is movably inserted into the fifth counter bore, a third spring is further sleeved on the second valve core, and the upper end and the lower end of the third spring are respectively tightly propped against the bottom of the second slave piston and the bottom surface of the fifth counter bore.

Compared with the prior art, the utility model has the advantages that: the utility model simplifies the internal structure of the valve block to greatly reduce the processing steps, thereby improving the production efficiency, and simultaneously, the volume of the valve block is obviously reduced to effectively reduce the material consumption, thereby reducing the production cost.

Drawings

FIG. 1 is a top view of the present invention;

FIG. 2 is a top side structural view of the valve body of the present invention;

FIG. 3 is a top block diagram of the valve block of the present invention;

fig. 4 is a bottom structural view of the valve block of the present invention.

Detailed Description

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

To maintain the following description of the embodiments of the present invention clear and concise, a detailed description of known functions and known components of the utility model have been omitted.

As shown in fig. 1 to 4, an automobile manual control valve comprises a valve body 1, a valve cover 2 fixed on the top of the valve body 1, and a handle 3 and a switch 4 movably arranged in the valve cover 2, wherein the valve body 1 comprises a valve block 11, and a main piston 12, a first auxiliary piston 13 and a second auxiliary piston 14 movably arranged on the top of the valve block 11; the handle 3 is matched with the main piston 12 and the first auxiliary piston 13, and the switch 4 is matched with the second auxiliary piston 14; the top of the valve block 11 is provided with a first counter bore 111, a second counter bore 112 and a third counter bore 113, the main piston 12, the first auxiliary piston 13 and the second auxiliary piston 14 are respectively movably arranged in the first counter bore 111, the second counter bore 112 and the third counter bore 113, and the peripheral surface of the top of the main piston 12 is provided with ventilation grooves 121 distributed annularly; a first through hole 114 is formed between the inner walls of the openings at the tops of the first counter bore 111 and the second counter bore 112; a second through hole 115 is formed between the inner walls of the openings at the tops of the first counter bore 111 and the third counter bore 113, an air inlet hole 1110, a first air outlet hole 118, a second air outlet hole 116 and a third air outlet hole 1111 are formed at the bottom of the valve block 11, and a third through hole 117 is formed between the second air outlet hole 116 and the inner wall of the bottom of the first counter bore 111; a fourth counter bore 119 is formed in the center of the bottom surface of the second counter bore 112, a fourth through hole 1113 is formed between the first air outlet hole 118 and the inner wall of the fourth counter bore 119, a fifth counter bore 1112 is formed in the center of the bottom surface of the third counter bore 113, a fifth through hole 1114 is formed between the air inlet hole 1110 and the inner wall of the fifth counter bore 1112, and a sixth through hole 1115 is formed between the third air outlet hole 1111 and the inner wall of the fifth counter bore 1112; a seventh through hole 1116 is formed between the first air outlet hole 118 and the inner wall of the fifth counterbore 1112.

The first counterbore 111 is also provided with a first spring 15, the first spring 15 is arranged below the main piston 12, and the upper end and the lower end of the first spring 15 are respectively pressed against the bottom of the main piston 12 and the bottom surface of the first counterbore 111.

A first valve core 131 is formed downwards at the center of the bottom of the first secondary piston 13, the first valve core 131 is movably inserted into the fourth counterbore 119, a second spring 16 is further sleeved on the first valve core 131, and the upper end and the lower end of the second spring 16 are respectively tightly propped against the bottom of the first secondary piston 13 and the bottom surface of the fourth counterbore 119.

A second valve core 141 is formed downwards at the bottom center of the second slave piston 14, the second valve core 141 is movably inserted into a fifth counterbore 1112, a third spring 17 is further sleeved on the second valve core 141, and the upper end and the lower end of the third spring 17 are respectively pressed against the bottom of the second slave piston 14 and the bottom surface of the fifth counterbore 1112.

The working principle is as follows: high-pressure gas is introduced into the gas inlet hole 1110 through a pipeline joint and then enters the fifth counterbore 1112 through the fifth through hole 1114, and when the switch 4 is not operated, the high-pressure gas in the fifth counterbore 1112 enters the first gas outlet hole 118 and the third gas outlet hole 1111 through the sixth through hole 1115 and the seventh through hole 1116 respectively so as to be output outwards; since the main piston 12 and the first slave piston 13 are both in the pressed-down state when the handle 3 is not manipulated, the high-pressure gas in the fifth counterbore 1112 does not enter the third counterbore 113 upward.

The switch 4 is operated to make the second secondary piston 14 rise, then the handle 3 is operated to make the primary piston 12 rise and make the first secondary piston 13 descend, the high-pressure gas in the fifth counter bore 1112 enters the third counter bore 113 upwards and enters the first counter bore 111 through the second through hole 115, and the first through hole 114 is in a closed state because the first secondary piston 13 is in a pressing state; the high-pressure gas in the first counterbore 111 enters the second outlet hole 116 through the third through hole 117 to be output outwards.

When the handle 3 is operated to lower the main piston 12 and raise the first sub-piston 13, the high-pressure gas from the second through hole 115 enters the first through hole 114 via the vent groove 121 and then enters the second counterbore 112, and then enters the first gas outlet hole 118 via the fourth through hole 1113 to be discharged outwards; at this time, the high-pressure gas in the first air outlet hole 118 also enters the fifth counterbore 1112 through the seventh through hole 1116, and finally enters the first air outlet hole 118 and the third air outlet hole 1111 through the sixth through hole 1115 and the seventh through hole 1116 respectively to be output outwards, so that quick and complete pressure relief is realized.

The utility model simplifies the internal structure of the valve block to greatly reduce the processing steps, thereby improving the production efficiency, and simultaneously, the volume of the valve block is obviously reduced to effectively reduce the material consumption, thereby reducing the production cost.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in the embodiments and modifications thereof may be made, and equivalents may be substituted for elements thereof; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automobile manual control valve comprises a valve body, a valve cover fixed on the top of the valve body, a handle and a switch, wherein the handle and the switch are movably arranged in the valve cover; the valve block is characterized in that the top of the valve block is provided with a first counter bore, a second counter bore and a third counter bore, the main piston, the first auxiliary piston and the second auxiliary piston are respectively and movably arranged in the first counter bore, the second counter bore and the third counter bore, and the peripheral surface of the top of the main piston is provided with ventilation grooves distributed annularly; a first through hole is formed between the inner walls of the openings at the tops of the first counter bore and the second counter bore; a second through hole is formed between the inner walls of the openings at the tops of the first counter bore and the third counter bore, an air inlet hole, a first air outlet hole, a second air outlet hole and a third air outlet hole are formed at the bottom of the valve block, and a third through hole is formed between the second air outlet hole and the inner wall at the bottom of the first counter bore; a fourth counter bore is formed in the center of the bottom surface of the second counter bore, a fourth through hole is formed between the first air outlet hole and the inner wall of the fourth counter bore, a fifth counter bore is formed in the center of the bottom surface of the third counter bore, a fifth through hole is formed between the air inlet hole and the inner wall of the fifth counter bore, and a sixth through hole is formed between the third air outlet hole and the inner wall of the fifth counter bore; and a seventh through hole is formed between the first air outlet hole and the inner wall of the fifth counter bore.

2. The manual valve for automobiles of claim 1, wherein the first counter bore is further provided with a first spring, the first spring is arranged below the main piston, and the upper end and the lower end of the first spring are respectively pressed against the bottom of the main piston and the bottom surface of the first counter bore.

3. The manual valve for automobiles according to claim 2, wherein a first valve core is formed downwards at the center of the bottom of the first secondary piston, the first valve core is movably inserted into the fourth counter bore, a second spring is further sleeved on the first valve core, and the upper end and the lower end of the second spring are respectively pressed against the bottom of the first secondary piston and the bottom surface of the fourth counter bore.

4. The manual valve for automobiles according to claim 3, wherein a second valve core is formed downwards at the center of the bottom of the second secondary piston, the second valve core is movably inserted into a fifth counter bore, a third spring is further sleeved on the second valve core, and the upper end and the lower end of the third spring are respectively pressed against the bottom of the second secondary piston and the bottom surface of the fifth counter bore.