CN216589962U

CN216589962U - Built-in gas detection valve

Info

Publication number: CN216589962U
Application number: CN202123052408.8U
Authority: CN
Inventors: 昝艳辉
Original assignee: Zhejiang Fengzhou Precision Manufacturing Co ltd
Current assignee: Zhejiang Fengzhou Technology Co.,Ltd.
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-05-24
Anticipated expiration: 2031-12-07

Abstract

The utility model relates to a built-in gas detection valve which comprises a valve cover, a stop ring and a valve cap, wherein the valve cover, the stop ring and the valve cap are sequentially arranged in an oil cylinder mounting hole from top to bottom, an air cavity is formed in the middle of the lower end of the valve cap, an air circuit hole communicated with the air cavity is formed in the outer side wall of the valve cap, a sealing element is arranged in the lower end opening of the air cavity, an inner cavity is formed in the middle of the upper end of the valve cover, a valve core which slides up and down is arranged in the inner cavity, a spring is arranged between the valve core and the bottom of the inner cavity, the upper end of the valve core sequentially penetrates through the stop ring, the sealing element and the air cavity of the valve cap from bottom to top, a circle of slope matched with the sealing element is arranged on the valve core, and a vent hole is formed in the outer side wall of the upper part of the valve cover. The utility model guides the opening and closing action of the valve by utilizing the actions of the spring and the piston rod, has simple structure of the whole gas detection valve, can effectively improve the assembly efficiency, reduces the production cost and increases the product percent of pass.

Description

Built-in gas detection valve

Technical Field

The utility model relates to the technical field of tool checking tools, in particular to a built-in gas check valve.

Background

Tooling, namely process equipment: refers to the collective term for the various tools used in the manufacturing process. Including tool/clamp/mold/gauge/auxiliary/bench tool/station tool, etc. The tooling is commonly referred to as short. The type hydro-cylinder is examined to gas often can be used in the frock, can install built-in gas in the type hydro-cylinder is examined to gas and examine the valve, and current gas is examined the valve and is had following several shortcomings:

1. the structure of the valve is complex, and the part processing cost is high;

2. the sealing effect of the valve is poor, and the requirement on the operating environment is high;

3. the processing cost of the valve is high, so that the oil cylinder is high in cost and not beneficial to market popularization.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a built-in gas check valve, which utilizes the actions of a spring and a piston rod to guide the opening and closing actions of the valve, has a simple structure, can effectively improve the assembly efficiency, reduces the production cost and improves the product percent of pass.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a built-in gas detection valve, include from top to bottom install valve gap in the hydro-cylinder mounting hole in proper order, keep off ring sum valve cap, valve cap lower extreme middle part seted up the air cavity, set up on the lateral wall of this valve cap with the communicating gas circuit hole of air cavity, the air cavity under in install the sealing member, valve gap upper end middle part seted up the inner chamber, gliding case about installing in this inner chamber, case and inner chamber bottom between install the spring, this case upper end is from bottom to top passed the air cavity of keeping off ring, sealing member and valve cap in proper order, the case on arranged with sealing member complex round slope, the lateral wall on valve gap upper portion seted up the blow vent.

As a supplement to the technical scheme of the utility model, a star-shaped ring is sleeved on the valve core above the valve cap.

As a supplement to the technical scheme of the utility model, a circle of annular groove is arranged at the lower part of the valve cover, and an O-shaped ring is arranged in the annular groove.

As a supplement to the technical scheme of the utility model, the lower end of the valve cap is provided with a circle of annular gap, and an O-shaped ring is arranged in the annular gap.

As a supplement to the solution according to the present invention, the outer side wall of the upper part of the valve cover is provided with a plurality of vents around the circumference.

As a supplement to the technical solution of the present invention, an annular protrusion is disposed on the valve core above the slope.

As a supplement to the technical scheme of the utility model, the valve core comprises a valve core rod, a circular baffle and a pillar which are sequentially and axially connected from top to bottom, the spring is sleeved on the pillar, and the slope is arranged on the valve core rod.

As a supplement to the technical scheme of the utility model, a division bar is arranged between the circular baffle and the valve core rod, and the width of the division bar is smaller than the diameter of the inner hole of the baffle ring.

Has the advantages that: the utility model relates to a built-in gas detection valve, which utilizes the actions of a spring and a piston rod to guide the opening and closing actions of the valve, has a simple structure, can effectively improve the assembly efficiency, reduces the production cost and increases the product percent of pass; the combination of soft and hard sealing is realized through the star-shaped ring and the plurality of O-shaped rings, and the sealing reliability is higher.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the valve cartridge of the present invention;

FIG. 3 is a schematic structural view of a valve cover according to the present invention;

FIG. 4 is a structural schematic view of a bonnet according to the present invention.

The figure is as follows: 1. the valve comprises a valve cover, 2, a spring, 3, a sealing piece, 4, a valve core, 5, a star-shaped ring, 6, a valve cap, 7, a baffle ring, 8, an inner cavity, 9, an air passage hole, 10, an air cavity, 11, an air port, 12, an annular groove, 13, an O-shaped ring, 14, a valve core rod, 15, a circular baffle, 16, a support column, 17, a slope, 18, a parting bead, 19, an annular protrusion, 20 and an annular notch.

Detailed Description

The utility model will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.

The embodiment of the utility model relates to a built-in gas detection valve, as shown in figures 1-4, when in use, the gas detection valve is arranged in a mounting hole of an oil cylinder, the gas detection valve comprises a valve cover 1, a baffle ring 7 and a valve cap 6 which are sequentially mounted from top to bottom, the middle part of the lower end of the valve cap 6 is provided with a gas cavity 10, the outer side wall of the valve cap 6 is provided with a gas circuit hole 9 communicated with the gas cavity 10, a sealing element 3 is mounted in the lower port of the gas cavity 10, the middle part of the upper end of the valve cover 1 is provided with an inner cavity 8, a valve core 4 which slides up and down is mounted in the inner cavity 8, a spring 2 is mounted between the valve core 4 and the bottom of the inner cavity 8, the upper end of the valve core 4 sequentially passes through the baffle ring 7, the sealing element 3 and the gas cavity 10 of the valve cap 6 from bottom to top, a circle of slope 17 matched with the sealing element 3 is arranged on the valve core 4, the outer side wall of the upper part of the valve cover 1 is provided with a vent hole 11, the sealing element 3 is a common O-shaped sealing ring.

The use principle is as follows: the oil cylinder is provided with an air path which is respectively connected with an air path hole 9 and an air port 11, when a piston rod of the oil cylinder descends, the valve core 4 is extruded, the valve core 4 overcomes the elastic force of the spring 2 to descend, a circle of slope 17 on the valve core 4 contacts and extrudes with the sealing element 3 to form sealing, the air cavity 10 is disconnected with the inner cavity 8, and the air check valve closes and cuts off the air path. On the contrary, when the piston rod of the oil cylinder moves upwards, the valve core 4 returns to the free state, under the action of the elastic force of the spring 2, the circle of slope 17 on the valve core 4 is separated from the sealing element 3, the air cavity 10 is communicated with the inner cavity 8, and the air path of the air check valve is opened for ventilation.

A star-shaped ring 5 is sleeved on the valve core 4 above the valve cap 6; a circle of annular grooves 12 are arranged at the lower part of the valve cover 1, and O-shaped rings 13 are arranged in the annular grooves 12; 6 lower extreme of valve cap arranged round annular gap 20, install O shape circle 13 in this annular gap 20, realize soft or hard sealed combination through star type circle 5 and a plurality of O shape circle 13, sealing reliability is higher.

The outer side wall of the upper part of the valve cover 1 is provided with a plurality of vent holes 11 around the circumference.

An annular bulge 19 is arranged above the slope 17 on the valve core 4, and the maximum diameter of the circle of slope 17 is equal to the diameter of the annular bulge 19.

The valve core 4 comprises a valve core rod 14, a circular baffle 15 and a support column 16 which are sequentially and axially connected from top to bottom, the spring 2 is sleeved on the support column 16, and the slope 17 is arranged on the valve core rod 14.

A division bar 18 is arranged between the circular baffle 15 and the valve core rod 14, the width of the division bar 18 is smaller than the diameter of the inner hole of the baffle ring 7, and the division bar 18 is arranged to ensure that a certain gap exists between the circular baffle 15 and the baffle ring 7, so that the inner hole of the baffle ring 7 cannot be sealed by the circular baffle 15, and the air cavity 10 is communicated with the inner cavity 8.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … … surface," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

The present application provides a built-in gas check valve, which is described in detail above, and the principles and embodiments of the present application are explained herein using specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A built-in gas detection valve is characterized in that: comprises a valve cover (1), a baffle ring (7) and a valve cap (6) which are sequentially arranged in an oil cylinder mounting hole from top to bottom, wherein the middle part of the lower end of the valve cap (6) is provided with an air cavity (10), the outer side wall of the valve cap (6) is provided with a gas path hole (9) communicated with the gas cavity (10), a sealing element (3) is arranged in the lower port of the air cavity (10), an inner cavity (8) is arranged in the middle of the upper end of the valve cover (1), a valve core (4) which slides up and down is arranged in the inner cavity (8), a spring (2) is arranged between the valve core (4) and the bottom of the inner cavity (8), the upper end of the valve core (4) sequentially penetrates through the baffle ring (7), the sealing element (3) and the air cavity (10) of the valve cap (6) from bottom to top, a circle of slope (17) matched with the sealing element (3) is arranged on the valve core (4), the outer side wall of the upper part of the valve cover (1) is provided with an air vent (11).

2. A built-in gas check valve according to claim 1, wherein: the star-shaped ring (5) is sleeved above the valve cap (6) on the valve core (4).

3. A built-in gas check valve according to claim 1, wherein: a circle of annular groove (12) is arranged at the lower part of the valve cover (1), and an O-shaped ring (13) is arranged in the annular groove (12).

4. A built-in gas check valve according to claim 1, wherein: a circle of annular gap (20) is arranged at the lower end of the valve cap (6), and an O-shaped ring (13) is installed in the annular gap (20).

5. A built-in gas check valve according to claim 1, wherein: the outer side wall of the upper part of the valve cover (1) is provided with a plurality of vent holes (11) around the circumference.

6. A built-in gas check valve according to claim 1, wherein: an annular bulge (19) is arranged above the slope (17) on the valve core (4).

7. A built-in gas check valve according to claim 1, wherein: the valve core (4) comprises a valve core rod (14), a circular baffle (15) and a support column (16) which are sequentially and axially connected from top to bottom, the spring (2) is sleeved on the support column (16), and the slope (17) is arranged on the valve core rod (14).

8. A built-in gas check valve according to claim 7, wherein: a division bar (18) is arranged between the circular baffle (15) and the valve core rod (14), and the width of the division bar (18) is smaller than the diameter of an inner hole of the baffle ring (7).