Gas flow detection device

Abstract

The utility model relates to the technical field of gas detection, and discloses a gas flow detection device which comprises a detection device body, the upper portion of the detection device body is fixedly connected with a communicating pipe, the upper side of the communicating pipe is provided with a threaded hole, the interior of the threaded hole is in threaded connection with a threaded sleeve, the upper side of the threaded sleeve is fixedly connected with a connecting cylinder, and the connecting cylinder is fixedly connected with a gas inlet. A supporting table is fixedly connected to the upper portion of the connecting cylinder, a flow detection head is arranged on the upper side of the supporting table, clamping blocks are slidably connected to the two sides of the outer portion of the communicating pipe and the two sides of the outer portion of the connecting cylinder, supporting blocks are fixedly connected to the two sides of each clamping block, and bidirectional threaded rods are in threaded connection with the interiors of the supporting blocks. According to the utility model, the flow detection head is convenient to disassemble, assemble and replace, dust impurities in to-be-detected air are filtered, the problem that the dust impurities damage the flow detection head is solved, and meanwhile, the filter screen is convenient to replace and disassemble.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detection, in particular to a gas flow detection device. Background Art

[0002] A common gas flow detection device is a thermal mass flow meter, which is based on the principle of thermal sensing and determines the gas flow rate by measuring the heat transfer when the gas flows through the sensor.

[0003] A gas flow detection device in the prior art, the utility model is a gas flow detection device obtained by the above design. When in use, the connecting pipe is fixedly connected to the flow meter body through a sealing ring, the inner side of the sealing ring is provided with an inner side surface, and the outer side surface is provided with an outer side surface, so that the pipelines are tightly connected, and a movable pipe is sleeved on the outside of the connecting pipe. The connecting pipe is fixedly connected to the flow meter through the internal thread inside the movable pipe and the external thread on the outer surface of the connecting pipe. The device sleeves the movable pipe and the sealing ring on the outside of the connecting pipe, so that the connecting pipe and the flow meter body are sealed and fixed, which effectively improves the problem of air leakage at the connection.

[0004] However, the above device cannot ensure the sealing of the connection between the connecting pipe and the meter after the meter is inspected, repaired or replaced, which may cause gas in the pipeline to overflow. Utility Model Content

[0005] The utility model aims to solve the defect in the prior art that the sealing of the connection between the connecting pipe and the meter cannot be guaranteed after the meter is inspected, repaired or replaced, and proposes a gas flow detection device.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a gas flow detection device, including a detection device body, a connecting pipe is fixedly connected to the upper part of the detection device body, a threaded hole is opened on the upper side of the connecting pipe, the internal thread of the threaded hole is connected to a screw sleeve, the upper side of the screw sleeve is fixedly connected to a connecting tube, the upper part of the connecting tube is fixedly connected to a support platform, a flow detection head is arranged on the upper side of the support platform, the connecting tube and the connecting tube are slidably connected to clamping blocks on both sides of the outside, the clamping blocks are fixedly connected to support blocks on both sides, the internal thread of the support block is connected to a bidirectional threaded rod, the front end of the bidirectional threaded rod is fixedly connected to a rotating block, and the right side of the detection device body is fixedly connected to a connecting component.

[0007] As a further description of the above technical solution:

[0008] The connecting assembly includes a first connecting ring, the first connecting ring is fixedly connected to the right side of the detection device body, the first connecting ring is connected to the second connecting ring through a first bolt, and the right side of the second connecting ring is fixedly connected to a connecting pipe.

[0009] As a further description of the above technical solution:

[0010] A filter tube is fixedly connected to the left side of the second connecting ring, a placement groove is opened on the upper side of the filter tube, a filter assembly is slidably connected inside the placement groove, the filter assembly is connected to a mounting plate via a second bolt, and the mounting plate is fixedly connected to both sides of the filter tube.

[0011] As a further description of the above technical solution:

[0012] The filter assembly comprises a filter screen, which is slidably connected to the inside of the placement groove, a pull rod is fixedly connected to the upper side of the filter screen, and clamping plates are fixedly connected to both sides of the filter screen.

[0013] As a further description of the above technical solution:

[0014] The rear end of the bidirectional threaded rod is fixedly connected to a limiting block.

[0015] As a further description of the above technical solution:

[0016] The left side of the detection device body is fixedly connected with a first connecting ring.

[0017] As a further description of the above technical solution:

[0018] A sealing gasket is arranged inside the clamping block.

[0019] The utility model has the following beneficial effects:

[0020] In the utility model, by using the coordinated use of structures such as the rotating block, the bidirectional threaded rod, the supporting block, the clamping block, the supporting platform, the connecting tube, the screw sleeve, the threaded hole, etc., the flow detection head can be easily removed and installed, and the flow detection head can be easily replaced.

[0021] In the utility model, by using the second bolt, the clamping plate, the mounting plate, the pull rod, the filter screen, the placement groove, the filter tube and other structures in coordination, the dust impurities in the air to be detected can be filtered to prevent the dust impurities from damaging the flow detection head, and the filter screen can be replaced and disassembled conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional diagram of a gas flow detection device proposed by the utility model;

[0023] Figure 2 This is a partial structural exploded diagram of a gas flow detection device proposed by the utility model;

[0024] Figure 3This is a partial structural schematic diagram of a gas flow detection device proposed by the utility model;

[0025] Figure 4 This is a disassembled diagram of a filter component of a gas flow detection device proposed by the utility model.

[0026] Legend:

[0027] 1. Detection device body; 2. Connecting pipe; 3. Threaded hole; 4. Screw sleeve; 5. Connecting tube; 6. Support platform; 7. Flow detection head; 8. Clamp block; 9. Support block; 10. Bidirectional threaded rod; 11. Rotating block; 12. Limit block; 13. Sealing gasket; 14. First connecting ring; 15. First bolt; 16. Second connecting ring; 17. Connecting pipe; 18. Filter tube; 19. Placement groove; 20. Filter screen; 21. Pull rod; 22. Card plate; 23. Second bolt; 24. Mounting plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Reference Figure 1 , Figure 2 , Figure 3 , the utility model provides an embodiment: a gas flow detection device, including a detection device body 1, a connecting pipe 2 is fixedly connected to the upper part of the detection device body 1, a threaded hole 3 is opened on the upper side of the connecting pipe 2, a screw sleeve 4 is connected to the inner thread of the threaded hole 3, a connecting tube 5 is fixedly connected to the upper side of the screw sleeve 4, a supporting platform 6 is fixedly connected to the upper part of the connecting tube 5, a flow detection head 7 is arranged on the upper side of the supporting platform 6, a clamping block 8 is slidably connected to both sides of the outer sides of the connecting pipe 2 and the connecting tube 5, a supporting block 9 is fixedly connected to both sides of the clamping block 8, a bidirectional threaded rod 10 is connected to the inner thread of the supporting block 9, a rotating block 11 is fixedly connected to the front end of the bidirectional threaded rod 10, and a connecting assembly is fixedly connected to the right side of the detection device body 1; the connecting assembly includes a first connecting ring 14, the first connecting ring 14 is fixedly connected to the right side of the detection device body 1, the first connecting ring 14 is connected to the second connecting ring 16 through a first bolt 15, and a connecting pipe 17 is fixedly connected to the right side of the second connecting ring 16.

[0030] The bidirectional threaded rod 10 is driven to rotate by manually rotating the rotating block 11, and the rotation of the bidirectional threaded rod 10 drives the support block 9 and the clamping block 8 to move, and then the support platform 6 is manually rotated to drive the connecting tube 5 and the screw sleeve 4 to rotate, so that the screw sleeve 4 is separated from the inside of the threaded hole 3, which makes it easier to remove and install the flow detection head 7.

[0031] Reference Figure 1 , Figure 4 A filter tube 18 is fixedly connected to the left side of the second connecting ring 16, a placement groove 19 is opened on the upper side of the filter tube 18, a filter assembly is slidably connected inside the placement groove 19, the filter assembly is connected to a mounting plate 24 through a second bolt 23, and the mounting plate 24 is fixedly connected to both sides of the filter tube 18; the filter assembly includes a filter screen 20, the filter screen 20 is slidably connected inside the placement groove 19, a pull rod 21 is fixedly connected to the upper side of the filter screen 20, and clamping plates 22 are fixedly connected to both sides of the filter screen 20.

[0032] The second bolt 23 is manually rotated to disengage the second bolt 23 from the clamping plate 22 and the mounting plate 24, and then the pull rod 21 is manually pulled to move the filter 20, so that the filter 20 is disengaged from the placement slot 19, thereby filtering the dust impurities in the air to be detected.

[0033] Reference Figure 1 , Figure 3 The rear end of the bidirectional threaded rod 10 is fixedly connected to a limiting block 12 ; the left side of the detection device body 1 is fixedly connected to a first connecting ring 14 ; and a sealing gasket 13 is arranged inside the clamping block 8 .

[0034] A limiting block 12 is fixedly connected to the rear end of the bidirectional threaded rod 10, which serves to limit the support block 9; a first connecting ring 14 is fixedly connected to the left side of the detection device body 1, which facilitates the fixation of the filter tube 18; a sealing gasket 13 is arranged inside the clamping block 8, which prevents gas leakage.

[0035] Working principle: When using the device, when the flow detection head 7 is disassembled, the rotating block 11 is manually rotated, and the rotating block 11 rotates to drive the bidirectional threaded rod 10 to rotate, and the bidirectional threaded rod 10 rotates to drive the support block 9 to move, and the support block 9 moves to drive the clamping block 8 to move, and then the support platform 6 is manually rotated, and the support platform 6 rotates to drive the connecting tube 5 to rotate, and the connecting tube 5 rotates to drive the screw sleeve 4 to disengage from the threaded hole 3, so that the flow detection head 7 is convenient to dismantle and install, and the flow detection head 7 is convenient to replace; the second bolt 23 is manually rotated to make the second bolt 23 disengage from the clamping plate 22 and the mounting plate 24, and then the pull rod 21 is manually pulled, and the pull rod 21 moves to drive the filter screen 20 to move, so that the filter screen 20 is separated from the placement groove 19, and the first bolt 15 is manually rotated to make the first bolt 15 disengage from the first connecting ring 14 and the second connecting ring 16, so that the filter tube 18 is convenient to disassemble, and the dust impurities in the air to be detected are filtered to prevent the dust impurities from damaging the flow detection head 7, and at the same time, it is convenient to replace and disassemble the filter screen 20.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A gas flow detection device, comprising a detection device body (1), characterized in that: A connecting pipe (2) is fixedly connected to the upper part of the detection device body (1); a threaded hole (3) is provided on the upper side of the connecting pipe (2); a screw sleeve (4) is threadedly connected to the inner part of the threaded hole (3); a connecting tube (5) is fixedly connected to the upper side of the screw sleeve (4); a supporting platform (6) is fixedly connected to the upper part of the connecting tube (5); a flow detection head (7) is arranged on the upper side of the supporting platform (6); clamping blocks (8) are slidably connected to the outer sides of the connecting pipe (2) and the connecting tube (5); supporting blocks (9) are fixedly connected to the two sides of the clamping block (8); a bidirectional threaded rod (10) is threadedly connected to the inner side of the supporting block (9); a rotating block (11) is fixedly connected to the front end of the bidirectional threaded rod (10); and a connecting assembly is fixedly connected to the right side of the detection device body (1).

2. A gas flow detection device according to claim 1, characterized in that: The connection assembly comprises a first connection ring (14), the first connection ring (14) being fixedly connected to the right side of the detection device body (1), the first connection ring (14) being connected to a second connection ring (16) via a first bolt (15), and the right side of the second connection ring (16) being fixedly connected to a connection pipe (17).

3. A gas flow detection device according to claim 2, characterized in that: A filter tube (18) is fixedly connected to the left side of the second connecting ring (16); a placement groove (19) is provided on the upper side of the filter tube (18); a filter assembly is slidably connected inside the placement groove (19); the filter assembly is connected to a mounting plate (24) via a second bolt (23); and the mounting plate (24) is fixedly connected to both sides of the filter tube (18).

4. A gas flow detection device according to claim 3, characterized in that: The filter assembly comprises a filter screen (20), the filter screen (20) being slidably connected inside the placement groove (19), a pull rod (21) being fixedly connected to the upper side of the filter screen (20), and clamping plates (22) being fixedly connected to both sides of the filter screen (20).

5. A gas flow detection device according to claim 1, characterized in that: The rear end of the bidirectional threaded rod (10) is fixedly connected to a limiting block (12).

6. A gas flow detection device according to claim 1, characterized in that: A first connecting ring (14) is fixedly connected to the left side of the detection device body (1).

7. A gas flow detection device according to claim 1, characterized in that: A sealing gasket (13) is provided inside the clamping block (8).

Images