Clamping type gas appliance pressurizing device

Abstract

The utility model provides a clamping type gas appliance pressurizing device, and belongs to the technical field of machinery. A clamping type gas appliance pressurizing device comprises a portable pneumatic pump, and the portable pneumatic pump is provided with a first connector, a second connector, a positive and negative pressure change-over switch device, a hand pump used for manually adjusting the internal pressure of a gas cavity, a recheck valve, a pressure release valve and a pressurizing lead screw; the air bottle is provided with an assembly head matched with an air inlet head of the clamping type gas appliance, and the other end of the air bottle is communicated with the first connector through a hose; the digital pressure gauge is installed on the second connector and used for detecting the internal air pressure. The utility model has the advantages that the manual test is convenient and safe, and the cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical technology, specifically a pressurizing device for cassette-type gas appliances. Background Technology

[0002] Since the special requirements for testing small gas cylinders in section 6.1.19 of the GB / T 38522-2020 standard "Outdoor Gas Burning Appliances" lack testing fixtures, a convenient testing fixture was designed for this purpose. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a pressurizing device for cassette-type gas appliances, which features convenient manual testing, safety, and reduced costs.

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] A pressurization device for a cassette gas appliance, comprising:

[0006] A portable pneumatic pump, comprising a first connector, a second connector, a positive and negative pressure switching device, a hand pump for manually adjusting the internal pressure of the air chamber, a return valve, a pressure relief valve, and a pressure screw.

[0007] An air cylinder having a fitting head adapted to the air inlet of a cartridge gas appliance, the other end of the air cylinder being connected to the first connector via a hose;

[0008] A digital pressure gauge is installed on the second connector for detecting internal air pressure.

[0009] In the above-mentioned pressurized cassette gas appliance device, the air bottle has a circular cross-section.

[0010] In the aforementioned pressurized cartridge gas appliance device, the air cylinder is designed to be compatible with the installation position of the cartridge gas appliance to simulate the usage state of the cartridge gas appliance.

[0011] In the aforementioned cartridge gas pressurization device, the hose is connected at a position away from the assembly head and is connected to the side wall of the air cylinder.

[0012] In the aforementioned pressurizing device for cassette-type gas appliances, a handwheel is installed on the end of the pressurizing screw.

[0013] Compared with the prior art, this application has the following advantages:

[0014] When using this device, first install the standard air cylinder into the cartridge appliance to be tested and close the latch. Turn on the pressure gauge, turn the pressure relief valve counterclockwise to open it, and wait for the displayed value to return to zero. Then, press the positive / negative pressure switch, turn the pressure relief valve clockwise to close it, pull up the handle of the portable air pump, and then press down at a constant speed. Observe the value displayed on the digital pressure gauge. Repeat the operation until the displayed value on the digital pressure gauge is close to the pressure to be tested. Rotate the fine-tuning screw clockwise / counterclockwise to increase / decrease the pressure until the displayed value on the digital pressure gauge accurately reaches the pressure to be tested for the relevant items. Attached Figure Description

[0015] Figure 1 This is a schematic diagram in this application.

[0016] In the picture,

[0017] 2. Portable pneumatic pump; 21. First connector; 22. Second connector; 23. Positive / negative pressure switching device; 24. Hand pump; 25. Shut-off valve; 26. Pressure relief valve; 27. Pressure screw; 271. Handwheel;

[0018] 3. Air cylinders;

[0019] 4. Digital pressure gauge. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0021] like Figure 1 As shown, a pressurizing device for a cartridge gas appliance includes: a portable air pump 2, an air bottle 3, and a digital pressure gauge 4. The portable air pump 2 has a first connector 21, a second connector 22, a positive and negative pressure switching device 23, a hand pump 24 for manually adjusting the internal pressure of the air chamber, a shut-off valve 25, a pressure relief valve 26, and a pressurizing screw 27. The air bottle 3 has an assembly head adapted to the air inlet of the cartridge gas appliance, and the other end of the air bottle 3 is connected to the first connector 21 through a hose. The digital pressure gauge 4 is installed on the second connector 22 for detecting the internal air pressure.

[0022] In this application, the portable air pump 2 is prior art, and adopts a portable air pump 2 similar to that of Xi'an Xinyi Instrument Technology Co., Ltd. The portable air pump 2 has a first connector 21, a second connector 22, a positive and negative pressure switching device 23, a hand pump 24 for manually adjusting the internal pressure of the air chamber, a shut-off valve 25, a pressure relief valve 26, and a pressure screw 27, all of which are components of the portable air pump 2.

[0023] The specific working principle is as follows: When using, first install the standard air cylinder 3 into the cartridge gas appliance to be tested and close the buckle; turn on the pressure gauge, rotate the pressure relief valve 26 counterclockwise to open the pressure relief valve 26, wait for the displayed value to return to zero, press the positive and negative pressure switching switch, rotate the pressure relief valve 26 clockwise to close the pressure relief valve 26, pull up the handle of the hand pump 24 of the portable air pressure pump 2, and then press down at a uniform speed, observe the displayed value in the digital pressure gauge 4, repeat the operation until the displayed value in the digital pressure gauge 4 is close to the pressure to be tested, rotate the fine adjustment pressure screw 27 clockwise / counterclockwise to increase / decrease the pressure, until the displayed value in the digital pressure gauge 4 accurately reaches the pressure to be tested for relevant items.

[0024] The digital pressure gauge 4 provides a quick, clear, and accurate display; the portable air pump 2 enables rapid adjustment of pressure from 0 to 6 MPa, and pressure can be increased or decreased via a positive / negative pressure switch. The pressure screw 27 allows for fine-tuning of pressure, greatly facilitating testing. It features a simple structure, reasonable design, and easy operation; the standard air cylinder 3 is perfectly designed for cartridge-type gas appliances, making it easier to complete relevant testing items; the pressure relief valve 26 provides quick, convenient, and safe pressure relief; it solves the problem of lacking testing fixtures for the special requirements of small gas cylinders in GB / T 38522-2020 "Outdoor Gas Burning Appliances" standard 6.1.19, and addresses the issues of time-consuming, labor-intensive, inefficient, and expensive manual testing, with finished testing instruments costing tens of thousands of yuan.

[0025] Pressure relief valves are used to release internal pressure.

[0026] The shut-off valve 25 is used to control whether the hand pump 24 can be activated. When the shut-off valve 25 is closed, the hand pump 24 cannot affect the internal pressure. When the shut-off valve 25 is open, the hand pump 24 can be manually controlled to affect the internal pressure.

[0027] Specifically, the cross-section of air bottle 3 is circular.

[0028] Specifically, air cylinder 3 is designed to fit the installation location of cartridge gas appliances to simulate the usage state of cartridge gas appliances.

[0029] The air cylinder 3 in this application is manufactured entirely in accordance with the standard butane cylinder for portable gas stoves.

[0030] Specifically, the hose is connected at a location away from the assembly head and is attached to the side wall of air cylinder 3.

[0031] Specifically, a handwheel 271 is installed on the end of the pressure screw 27.

[0032] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture, as shown in the attached figure. If the specific posture changes, the directional indication will also change accordingly.

[0033] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Meanwhile, the word "and / or" throughout the text means including three solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0034] All of the above components are general standard parts or components known to those skilled in the art. Their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0035] The specific embodiments described herein are merely illustrative examples of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from this utility model or exceeding the scope defined by the appended claims.

Claims

1. A pressurizing device for a cassette-type gas appliance, characterized in that, include: A portable air pump (2) has a first connector (21), a second connector (22), a positive and negative pressure switching device (23), a hand pump (24) for manually adjusting the pressure inside the air chamber, a shut-off valve (25), a pressure relief valve (26), and a pressure screw (27). An air cylinder (3) has an assembly head adapted to the air inlet of a cartridge gas appliance, and the other end of the air cylinder (3) is connected to the first connector (21) via a hose. A digital pressure gauge (4) is installed on the second connector (22) for detecting internal air pressure.

2. The pressurizing device for cassette-type gas appliances according to claim 1, characterized in that, The air bottle (3) has a circular cross-section.

3. The pressurizing device for cassette-type gas appliances according to claim 1, characterized in that, The air bottle (3) is designed to be compatible with the installation location of the cartridge gas appliance to simulate the usage state of the cartridge gas appliance.

4. The pressurizing device for cassette-type gas appliances according to claim 1, characterized in that, The hose is connected at a location away from the assembly head and is attached to the side wall of the air cylinder (3).

5. The pressurizing device for cassette-type gas appliances according to claim 1, characterized in that, A handwheel (271) is installed on the end of the pressure screw (27).

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