CN213575748U

CN213575748U - Industrial gas filling is with preventing leaking check valve

Info

Publication number: CN213575748U
Application number: CN202021626538.0U
Authority: CN
Inventors: 孙幼清; 周世标
Original assignee: Wuhan Tuteng Industry & Trade Development Co ltd
Current assignee: Wuhan Tuteng Industry & Trade Development Co ltd
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2021-06-29
Anticipated expiration: 2030-08-06

Abstract

The utility model discloses an industrial gas filling is with preventing leaking check valve, the disk seat is installed in the valve body, the valve gap is installed in the outside limit of valve body and is corresponded with the disk seat position, telescopic piston sliding connection is in the valve gap, the one end of valve rod stretches into valve gap internal thread connection in telescopic piston, the other end of valve rod is fixed in the governing valve handle, the case is fixed in telescopic piston, first one-way non return component and the one-way non return component of second set up respectively and place both sides portion of disk seat in the valve body. The utility model discloses beneficial effect: the utility model discloses be provided with case, governing valve handle, telescopic piston, one-way non return component of first and the one-way non return component of second, telescopic piston and valve gap sliding connection, telescopic piston and valve gap contact are inseparable, and the fluid is difficult to leak away from the gap, is provided with two sets of one-way non return components in the valve body, improves one-way non return effect, avoids the fluid to flow backwards.

Description

Industrial gas filling is with preventing leaking check valve

Technical Field

The utility model belongs to the technical field of the industrial gas filling technique and specifically relates to an industrial gas filling is with preventing leaking check valve.

Background

The check valve is commonly called as a check valve, fluid can only flow along the inlet, and the medium at the outlet cannot flow back. The check valve is also called a check valve or a check valve, and is used for a directional control valve which prevents reverse flow of oil in a hydraulic system or prevents reverse flow of compressed air in a pneumatic system and allows only one-way flow of a medium.

However, in the prior art, the leakage effect of the check valve is not obvious, if the sealing effect of the valve body is not good, some fluid overflows from gaps between the valve cover and the valve rod, and in addition, the check valve clack of the valve body has poor check effect, so that the fluid is easy to flow backwards.

Therefore, there is a need for a leak-proof check valve for industrial gas filling.

SUMMERY OF THE UTILITY MODEL

To the not enough of existence among the above-mentioned prior art, the utility model aims to provide an industrial gas filling is with preventing leaking check valve to solve above-mentioned problem.

The utility model provides an industrial gas filling is with preventing leaking check valve, includes valve body, disk seat, valve gap, valve rod, case, adjusting valve handle, telescopic piston, first one-way non return component and the one-way non return component of second, the valve seat is installed in the valve body, the valve gap is installed the outside limit of valve body and with the disk seat position corresponds, telescopic piston sliding connection be in the valve gap, the one end of valve rod stretch into valve gap internal thread connect in telescopic piston, the other end of valve rod is fixed in the adjusting valve handle, the case is fixed in telescopic piston, first one-way non return component and the one-way non return component of second set up respectively in the valve body and in place in the both sides portion of disk seat.

Preferably, first one-way check component includes first support, first check valve rod, first check case and first check valve clack, first support and first check valve clack are all installed the inner wall of valve body, first check valve rod inserts in the first support and with first support sliding connection, first check case is fixed in first check valve rod, first check valve clack is provided with the first flow hole of being connected with first check case cooperation.

Preferably, the first check valve rod is sleeved with a first spring.

The beneficial effects of the preferable technical scheme are as follows: the first check valve core is matched and connected with the first flow hole of the first check valve clack to play a check role, and the first spring plays a reset check role.

Preferably, the second one-way check member includes a second support, a second check valve rod, a second check valve core and a second check valve core, the second support and the second check valve core are both installed on the inner wall of the valve body, the second check valve rod is inserted into the second support and is connected with the second support in a sliding manner, the second check valve core is fixed on the second check valve rod, and the second check valve core is provided with a second flow hole connected with the second check valve core in a matching manner.

Preferably, the second check valve rod is sleeved with a second spring.

The beneficial effects of the preferable technical scheme are as follows: the second check valve core is matched and connected with the second flow hole of the second check valve clack to play a check role, and the second spring plays a reset check role.

Preferably, the circumferential portion of the regulating valve handle is provided with an anti-slip stripe.

The beneficial effects of the preferable technical scheme are as follows: the anti-slip stripes increase the friction force of the knob handle, and the valve handle is convenient to adjust.

Compared with the prior art, the utility model discloses beneficial effect: the utility model discloses be provided with case, governing valve handle, telescopic piston, one-way non return component of first and the one-way non return component of second, telescopic piston and valve gap sliding connection, telescopic piston and valve gap contact are inseparable, and the fluid is difficult to leak away from the gap, is provided with two sets of one-way non return components in the valve body, improves one-way non return effect, avoids the fluid to flow backwards.

Drawings

Fig. 1 is a structural diagram of a leakage-proof check valve for industrial gas filling provided by the utility model;

FIG. 2 is a view showing a first one-way check member according to the present invention;

FIG. 3 is a view showing a second one-way check member according to the present invention;

fig. 4 is a first frame structure of the present invention;

FIG. 5 is a second bracket structure of the present invention;

fig. 6 is a schematic view of the open state of the check valve according to the present invention.

Reference numbers in the figures: 1. a valve body; 2. a valve seat; 3. a valve cover; 4. a valve stem; 5. a valve core; 6. a regulating valve handle; 7. a telescopic piston; 8. a first one-way check member; 9. a second one-way check member; 801. a first bracket; 802. a first check valve stem; 803. a first check valve spool; 804. a first check valve flap; 805. A first flow aperture; 806. a first spring; 901. a second bracket; 902. a second check valve stem; 903. a second check valve spool; 904. a second check valve flap; 905. a second flow aperture; 906. a second spring; 10. and (4) anti-skid stripes.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

As shown in fig. 1 and fig. 2 to 6, the leakage-proof one-way valve for industrial gas filling comprises a valve body 1, a valve seat 2, a valve cover 3, a valve rod 4, a valve core 5, a regulating valve handle 6, a telescopic piston 7, a first one-way check member 8 and a second one-way check member 9, the valve seat 2 is arranged in the valve body 1, the valve cover 3 is arranged on the outer side edge of the valve body 1 and corresponds to the valve seat 2 in position, the telescopic piston 7 is connected in the valve cover 3 in a sliding way, one end of the valve rod 4 extends into the valve cover 3 and is connected with the telescopic piston 7 through an internal thread, the other end of the valve rod 4 is fixed on the adjusting valve handle 6, the valve core 5 is fixed on the telescopic piston 7, the first one-way check member 8 and the second one-way check member 9 are respectively arranged in the valve body 1 and are arranged at two side parts of the valve seat 2.

Further, the first one-way check member 8 includes a first bracket 801, a first check valve rod 802, a first check valve core 803 and a first check valve flap 804, the first bracket 801 and the first check valve flap 804 are both installed on the inner wall of the valve body 1, the first check valve rod 802 is inserted into the first bracket 801 and is slidably connected with the first bracket 801, the first check valve core 803 is fixed on the first check valve rod 802, and the first check valve flap 804 is provided with a first flow hole 805 which is cooperatively connected with the first check valve core 803.

Further, the first check valve rod 802 is sleeved with a first spring 806.

The beneficial effects of the further technical scheme are that: the first check valve core 803 is connected to the first flow hole 805 of the first check valve flap 804 in a fitting manner, and functions as a check, and the first spring 806 functions as a return check.

Further, the second one-way check member 9 includes a second support 901, a second check valve rod 902, a second check valve spool 903 and a second check valve spool 904, the second support 901 and the second check valve spool 904 are both installed on the inner wall of the valve body 1, the second check valve rod 902 is inserted into the second support 901 and slidably connected with the second support 901, the second check valve spool 903 is fixed to the second check valve rod 902, and the second check valve spool 904 is provided with a second flow hole 905 cooperatively connected with the second check valve spool 903.

Further, the second check valve stem 902 is sleeved with a second spring 906.

The beneficial effects of the further technical scheme are that: the second check spool 903 is cooperatively connected with a second flow hole 905 of the second check valve flap 904 to perform a check function, and the second spring 906 performs a return check function.

Further, the circumferential portion of the regulating valve handle 6 is provided with an anti-slip stripe 10.

The beneficial effects of the further technical scheme are that: the anti-slip stripes 10 increase the friction force of the knob handle, and facilitate the adjustment of the adjusting valve handle 6.

Compared with the prior art, the utility model discloses beneficial effect: the utility model discloses be provided with case 5, adjusting valve handle 6, telescopic piston 7, first one-way non return component 8 and the one-way non return component 9 of second, telescopic piston 7 and valve gap sliding connection, telescopic piston 7 is inseparable with valve gap 3 contact, and the fluid is difficult to leak away from the gap, is provided with two sets of one-way non return components in the valve body, improves one-way non return effect, avoids the fluid to flow backwards.

The working principle is as follows: when air enters, the adjusting valve handle 6 is opened, the adjusting valve handle 6 drives the telescopic piston 7 to move upwards through the valve rod 4, the valve core 5 is separated from the valve seat 2, air flows, only when the air pressure at the air inlet exceeds the compression force of the first spring 806 and the second spring 906, the first spring 806 and the second spring 906 are compressed, the first check valve core 803 and the second check valve core 903 can be separated from the check valve clack, air passes through, after the air pressure is reduced, the first spring 806 and the second spring 906 return, the first check valve core 803 and the second check valve core 903 return to support the check valve clack, the air backflow is prevented, and the one-way check function is further achieved.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.

Claims

1. The utility model provides an industrial gas filling is with preventing leaking check valve which characterized in that: comprises a valve body (1), a valve seat (2), a valve cover (3), a valve rod (4), a valve core (5), a regulating valve handle (6), a telescopic piston (7), a first one-way check component (8) and a second one-way check component (9), the valve seat (2) is arranged in the valve body (1), the valve cover (3) is arranged on the outer side edge of the valve body (1) and corresponds to the valve seat (2), the telescopic piston (7) is connected in the valve cover (3) in a sliding way, one end of the valve rod (4) extends into the valve cover (3) and is connected with the telescopic piston (7) in an internal thread way, the other end of the valve rod (4) is fixed on the adjusting valve handle (6), the valve core (5) is fixed on the telescopic piston (7), the first one-way check member (8) and the second one-way check member (9) are respectively arranged in the valve body (1) and are arranged at two side parts of the valve seat (2).

2. A leak-proof check valve for industrial gas filling as recited in claim 1, wherein: the first one-way check member (8) comprises a first support (801), a first check valve rod (802), a first check valve core (803) and a first check valve flap (804), wherein the first support (801) and the first check valve flap (804) are installed on the inner wall of the valve body (1), the first check valve rod (802) is inserted into the first support (801) and is in sliding connection with the first support (801), the first check valve core (803) is fixed on the first check valve rod (802), and the first check valve flap (804) is provided with a first flow hole (805) which is in matched connection with the first check valve core (803).

3. A leak-proof check valve for industrial gas filling as recited in claim 2, wherein: the first check valve stem (802) is sleeved with a first spring (806).

4. A leak-proof check valve for industrial gas filling as recited in claim 3, wherein: the second one-way check member (9) comprises a second support (901), a second check valve rod (902), a second check valve core (903) and a second check valve clack (904), wherein the second support (901) and the second check valve clack (904) are installed on the inner wall of the valve body (1), the second check valve rod (902) is inserted into the second support (901) and is in sliding connection with the second support (901), the second check valve core (903) is fixed on the second check valve rod (902), and the second check valve clack (904) is provided with a second flow hole (905) in matched connection with the second check valve core (903).

5. A leak-proof check valve for industrial gas filling as recited in claim 4, wherein: the second check valve rod (902) is sleeved with a second spring (906).

6. A leak-proof check valve for industrial gas filling as recited in claim 1, wherein: the circumference part of the regulating valve handle (6) is provided with anti-skid stripes (10).