CN216112554U

CN216112554U - Follow-up mixed gas proportioning device

Info

Publication number: CN216112554U
Application number: CN202122153893.1U
Authority: CN
Inventors: 赵永文; 黄丽丽; 张家林; 张若虎
Original assignee: Jinan Huaxin Fluid Control Co ltd
Current assignee: Jinan Huaxin Fluid Control Co ltd
Priority date: 2021-09-08
Filing date: 2021-09-08
Publication date: 2022-03-22
Anticipated expiration: 2031-09-08

Abstract

The utility model discloses a follow-up mixed gas proportioning device, belonging to the technical field of mixed gas, the follow-up mixed gas proportioning device comprises a mixing box and also comprises: the gas outlet pipe, the first gas inlet pipe and the second gas inlet pipe are communicated with a connecting port on the mixing box and the mixing box, the first gas inlet pipe and the second gas inlet pipe are positioned on one side of the mixing box, and the gas outlet pipe is positioned on the other side of the mixing box; a threaded sleeve is arranged at a connecting port on the mixing box, and threaded cover plates are sleeved on the air outlet pipe, the first air inlet pipe and the second air inlet pipe; this follow-up mist proportioner, during the use, can prevent effectively that junction between mixing box and the external pipeline from revealing, uses the back for a long time, even the junction appears revealing, can also further play sealed effect through mutually supporting of second rubber pad and stripper plate, and the reliability further improves.

Description

Follow-up mixed gas proportioning device

Technical Field

The utility model relates to the technical field of mixed gas, in particular to a follow-up mixed gas proportioner.

Background

In the field of welding and other gas protection, multielement gas protection is needed to improve the operation quality, two or more single gases are needed to be mixed into mixed gas according to the required proportion, and at the moment, a mixed gas proportioner is needed to mix the gases.

However, in the current market, the connection sealing performance of the connection part between the mixing box and the external pipeline is not tight in the use process of the existing follow-up mixed gas proportioner, and the possibility of gas leakage exists after the follow-up mixed gas proportioner is used for a long time.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that in the prior art, the connection sealing performance of a joint between a mixing box and an external pipeline is not tight, and the possibility of air leakage exists after the mixing box is used for a long time.

In order to achieve the purpose, the utility model adopts the following technical scheme:

follow-up formula mist ratio ware, including the mixing box, still include: the gas outlet pipe, the first gas inlet pipe and the second gas inlet pipe are communicated with a connecting port on the mixing box and the mixing box, the first gas inlet pipe and the second gas inlet pipe are positioned on one side of the mixing box, and the gas outlet pipe is positioned on the other side of the mixing box; the air outlet pipe, the first air inlet pipe and the second air inlet pipe are fixedly connected with first rubber pads, the first rubber pads are positioned in the threaded cover plates, and the threaded cover plates are in threaded connection with the threaded sleeves; equal sliding connection has the rubber circle in outlet duct, first intake pipe and the second intake pipe, be equipped with hollow cover on the rubber circle, hollow cover and mixed case lateral wall joint.

In order to prevent the junction from being impacted by external force, preferably, the lateral wall of the mixing box is slidably connected with a limiting head, a spring is connected between the limiting head and the mixing box, a groove is formed in the hollow cover, and the limiting head is matched with the groove.

In order to achieve the sealing effect, preferably, a fastening sleeve is arranged on the rubber ring, and the fastening sleeve is fastened through a nut.

In order to play a role in sealing, preferably, a second rubber pad is arranged in the hollow cover and is attached to the side wall of the mixing box, an extrusion plate is connected between the hollow cover and the rubber ring in a sliding mode, and a baffle ring for limiting the position of the extrusion plate is fixedly connected to the inner wall of the hollow cover.

In order to improve the mixing efficiency, preferably, the mixing box is internally provided with an air outlet cylinder and an air inlet cylinder respectively, the air outlet cylinder and the air inlet cylinder are both designed in two groups and are respectively positioned at the air outlets of the first air inlet pipe and the second air inlet pipe, and the air outlet cylinder and the air inlet cylinder are communicated through a connecting pipe.

In order to improve the mixing efficiency, preferably, an extension pipe is connected in the mixing box and communicated with the air outlet pipe, a hollow cylinder is arranged in the mixing box, a communication hole is formed in the bottom of the hollow cylinder, and the extension pipe is located in the hollow cylinder.

Compared with the prior art, the utility model provides a follow-up mixed gas proportioner, which has the following beneficial effects:

this follow-up mist proportioner, during the use, can prevent effectively that junction between mixing box and the external pipeline from revealing, uses the back for a long time, even the junction appears revealing, can also further play sealed effect through mutually supporting of second rubber pad and stripper plate, and the reliability further improves.

Drawings

FIG. 1 is a schematic structural diagram of a follow-up mixed gas proportioner according to the present invention;

FIG. 2 is a schematic structural view of a threaded cover plate of the follow-up type mixed gas proportioner according to the present invention;

FIG. 3 is a schematic structural diagram of an air inlet barrel of the follow-up mixed gas proportioner according to the present invention;

FIG. 4 is a top view of the hollow shroud of the follow-up mixture gas proportioner of the present invention;

FIG. 5 is an enlarged view of portion A of FIG. 4 of the follow-up mixture gas proportioner in accordance with the present invention.

In the figure: 1. a mixing box; 101. an air outlet pipe; 102. a first intake pipe; 103. a second intake pipe; 2. a threaded sleeve; 201. a first rubber pad; 202. a threaded cover plate; 3. a hollow cover; 301. a rubber ring; 302. fastening sleeves; 4. a second rubber pad; 401. a spring; 402. a limiting head; 5. a pressing plate; 501. a baffle ring; 6. an air outlet cylinder; 601. an air inlet cylinder; 602. a connecting pipe; 7. a hollow cylinder; 701. a communicating hole; 702. an extension pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the 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 thus, should not be construed as limiting the present invention.

Example 1:

referring to fig. 1 to 5, the follow-up mixed gas proportioner includes a mixing box 1, and further includes: the gas outlet pipe 101, the first gas inlet pipe 102 and the second gas inlet pipe 103 are communicated with a connecting port on the mixing box 1 and the mixing box 1, the first gas inlet pipe 102 and the second gas inlet pipe 103 are positioned on one side of the mixing box 1, and the gas outlet pipe 101 is positioned on the other side of the mixing box 1; a threaded sleeve 2 is arranged at a connecting port on the mixing box 1, threaded cover plates 202 are sleeved on the air outlet pipe 101, the first air inlet pipe 102 and the second air inlet pipe 103, first rubber pads 201 are fixedly connected on the air outlet pipe 101, the first air inlet pipe 102 and the second air inlet pipe 103, the first rubber pads 201 are positioned in the threaded cover plates 202, and the threaded cover plates 202 are in threaded connection with the threaded sleeve 2; the air outlet pipe 101, the first air inlet pipe 102 and the second air inlet pipe 103 are connected with a rubber ring 301 in a sliding mode, a hollow cover 3 is arranged on the rubber ring 301, and the hollow cover 3 is connected with the side wall of the mixing box 1 in a clamping mode.

During operation, through threaded cover plate 202 and with 2 threaded connection of thread bush, through the first rubber pad 201 of extrusion, play sealed effect, prevent that outlet duct 101, first intake pipe 102 and second intake pipe 103 from leaking gas with the junction department of mixing box 1.

Meanwhile, the rubber ring 301 is slid to cover the threaded cover plate 202 in the hollow cover 3, so as to prevent the impact of external force.

Example 2:

referring to fig. 1-5, on the basis of example 1, further,

the lateral wall of the mixing box 1 is connected with a limiting head 402 in a sliding mode, a spring 401 is connected between the limiting head 402 and the mixing box 1, a groove is formed in the hollow cover 3, and the limiting head 402 is matched with the groove.

The rubber ring 301 is provided with a fastening sleeve 302, and the fastening sleeve 302 is fastened through a nut.

The rubber ring 301 is slid to clamp the hollow cover 3 with the limiting head 402, the hollow cover 3 is fixed, then the nut is rotated, and the rubber ring 301 is fixed and sealed through the fastening sleeve 302.

Example 3:

referring to fig. 1-5, on the basis of example 2, further,

be equipped with second rubber pad 4 in the hollow cover 3, second rubber pad 4 pastes with mixing box 1 lateral wall, and sliding connection has stripper plate 5 between hollow cover 3 and the

rubber circle

301, and 3 inner walls of hollow cover fixedly connected with limit stripper plate 5 position keep off ring 501.

Through second rubber pad 4 and mixing box 1 lateral wall subsides, if gas leakage appears in first rubber pad 201 department, still can prevent gas leakage through second rubber pad 4.

If air leakage occurs at the position of the first rubber pad 201, at the moment, the air pressure in the hollow cover 3 pushes the extrusion plate 5 to move, and the rubber ring 301 is extruded to be matched with the fastening sleeve 302, so that air leakage is prevented.

Example 4:

referring to fig. 1-5, on the basis of example 3, further,

an air outlet cylinder 6 and an air inlet cylinder 601 are respectively arranged in the mixing box 1, the air outlet cylinder 6 and the air inlet cylinder 601 are both in two sets of designs and are respectively positioned at the air outlets of the first air inlet pipe 102 and the second air inlet pipe 103, and the air outlet cylinder 6 and the air inlet cylinder 601 are communicated through a connecting pipe 602.

When gas enters the mixing box 1 through the first gas inlet pipe 102 and the second gas inlet pipe 103, the bottom of the first gas inlet pipe 102 and the bottom of the second gas inlet pipe 103 are both provided with a gas outlet cylinder 6 and a gas inlet cylinder 601, part of gas enters from the gas inlet cylinder 601 at the bottom of the second gas inlet pipe 103, then flows out from the gas outlet cylinder 6 at the bottom of the first gas inlet pipe 102 through the connecting pipe 602, the mixing efficiency is improved, and similarly, the gas inlet cylinder 601 at the bottom of the first gas inlet pipe 102 also has the same effect.

An extension pipe 702 is connected in the mixing box 1, the extension pipe 702 is communicated with the air outlet pipe 101, a hollow cylinder 7 is arranged in the mixing box 1, a communication hole 701 is formed in the bottom of the hollow cylinder 7, and the extension pipe 702 is located in the hollow cylinder 7.

The mixed gas then flows downward, enters the inside of the hollow cylinder 7 through the communication hole 701, then flows upward again, and finally enters the outlet pipe 101 through the extension pipe 702 to be discharged, thereby completing the mixing.

Through the cooperation of hollow section of thick bamboo 7 and extension pipe 702, make the gas up-and-down motion, improve mixing efficiency.

The above description is only for convenience of the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to or changed within the scope of the present invention.

Claims

1. Follow-up formula mist ratio ware, including mixing box (1), its characterized in that still includes:

the gas outlet pipe (101), the first gas inlet pipe (102) and the second gas inlet pipe (103) are communicated with a connecting port on the mixing box (1) and the mixing box (1), the first gas inlet pipe (102) and the second gas inlet pipe (103) are positioned on one side of the mixing box (1), and the gas outlet pipe (101) is positioned on the other side of the mixing box (1);

a threaded sleeve (2) is arranged at a connecting port on the mixing box (1), threaded cover plates (202) are sleeved on the air outlet pipe (101), the first air inlet pipe (102) and the second air inlet pipe (103), first rubber pads (201) are fixedly connected on the air outlet pipe (101), the first air inlet pipe (102) and the second air inlet pipe (103), the first rubber pads (201) are positioned in the threaded cover plates (202), and the threaded cover plates (202) are in threaded connection with the threaded sleeve (2);

equal sliding connection has rubber circle (301) on outlet duct (101), first intake pipe (102) and second intake pipe (103), be equipped with hollow cover (3) on rubber circle (301), hollow cover (3) and mixing box (1) lateral wall joint.

2. The follow-up mixed gas proportioner of claim 1 wherein the side wall of the mixing box (1) is slidably connected with a limiting head (402), a spring (401) is connected between the limiting head (402) and the mixing box (1), a groove is arranged on the hollow cover (3), and the limiting head (402) is matched with the groove.

3. The follow-up mixed gas proportioner according to claim 2, wherein the rubber ring (301) is provided with a fastening sleeve (302), and the fastening sleeve (302) is fastened through a nut.

4. The follow-up mixed gas proportioner according to claim 3, characterized in that a second rubber pad (4) is arranged in the hollow cover (3), the second rubber pad (4) is attached to the side wall of the mixing box (1), a squeezing plate (5) is connected between the hollow cover (3) and the rubber ring (301) in a sliding manner, and a baffle ring (501) for limiting the position of the squeezing plate (5) is fixedly connected to the inner wall of the hollow cover (3).

5. The follow-up mixed gas proportioner according to claim 1, characterized in that an air outlet cylinder (6) and an air inlet cylinder (601) are respectively arranged in the mixing box (1), the air outlet cylinder (6) and the air inlet cylinder (601) are respectively of two sets of designs and are respectively positioned at the air outlets of the first air inlet pipe (102) and the second air inlet pipe (103), and the air outlet cylinder (6) and the air inlet cylinder (601) are communicated through a connecting pipe (602).

6. The follow-up mixed gas proportioner according to claim 1, characterized in that an extension pipe (702) is connected in the mixing box (1), the extension pipe (702) is communicated with the gas outlet pipe (101), a hollow cylinder (7) is arranged in the mixing box (1), a communication hole (701) is arranged at the bottom of the hollow cylinder (7), and the extension pipe (702) is positioned in the hollow cylinder (7).