Gas collecting pipe for waste gas detection

Abstract

The utility model relates to the technical field of gas collecting pipes, in particular to a gas collecting pipe for waste gas detection, which comprises a gas collecting pipe main body, a cover plate is hinged to the side wall of the gas collecting pipe main body through a bent plate, a connecting assembly is arranged between the cover plate and the gas collecting pipe main body, and the connecting assembly comprises an inserting plate. The inserting plate is fixedly connected to the side wall of the gas collecting pipe body, a clamping groove is formed in the side wall of the inserting plate, two sets of symmetrically-arranged positioning rods are fixedly connected to the side wall of the gas collecting pipe body, protruding blocks are fixedly connected to the ends of the positioning rods, I-shaped plates are slidably connected to the outer walls of the positioning rods, and the I-shaped plates are clamped into the clamping groove. The cover plate can be freely opened by pulling the I-shaped plate to transversely move along the positioning rod and be separated from the clamping groove, after the cover plate is opened, an operator can conveniently conduct inspection or maintenance work, after cleaning is completed, the cover plate is closed, the I-shaped plate is clamped in the clamping groove again, and the stability of the cover plate is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of gas collecting pipes, in particular to a gas collecting pipe for exhaust gas detection. Background Art

[0002] Waste gas refers to toxic and harmful gases emitted by humans during production and daily life. This is especially true of chemical plants, steel mills, pharmaceutical factories, coking plants, and oil refineries, which emit strong odors that seriously pollute the environment and affect human health.

[0003] After searching, the Chinese patent announcement number: CN220231141U discloses a gas collecting pipe for exhaust gas detection. When collecting exhaust gas, the gas collecting pipe for exhaust gas detection fixes the gas collecting pipe body to the outside of the exhaust pipe through a connecting assembly, and then installs the filter assembly on one side of the outlet pipe, and then opens valve No. 1 and valve No. 2 to introduce the exhaust gas into the interior of the gas collecting pipe body, and then the excess gas is filtered through the filter assembly and discharged, and then close valve No. 1 and valve No. 2, where valve No. 1 and valve No. 2 are both set as one-way valves, remove the filter assembly, and at the same time remove the gas collecting pipe body from the outside of the exhaust pipe for easy transportation and to prevent exhaust gas overflow.

[0004] The aforementioned exhaust gas detection collection tubes have certain drawbacks during use. For example, the exhaust gas contains harmful chemicals or particulate matter. While these harmful substances can be removed through a filter medium during exhaust, the inner wall of the collection tubes is susceptible to chemical or particulate matter clinging to them. Furthermore, the collection tubes' small air inlet and outlet ports make cleaning difficult, hindering their proper use. Therefore, a new exhaust gas detection collection tube has been proposed to address these issues. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides an air collecting pipe for exhaust gas detection, which aims to improve the problem in the prior art that chemical substances or particulate matter are easily attached to the inner wall of the air collecting pipe, and the air inlet and outlet of the air collecting pipe are small, which is inconvenient to clean and affects the normal use of the air collecting pipe.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a gas collecting pipe for exhaust gas detection, comprising a gas collecting pipe main body, the side wall of the gas collecting pipe main body is hinged with a cover plate through a bent plate, a connecting component is arranged between the cover plate and the gas collecting pipe main body, the connecting component comprises a plug plate, the plug plate is fixedly connected to the side wall of the gas collecting pipe main body, a card slot is opened on the side wall of the plug plate, the side wall of the gas collecting pipe main body is fixedly connected with two groups of symmetrically arranged positioning rods, the end of the positioning rod is fixedly connected with a protrusion, the outer wall of the positioning rod is slidably connected with an I-shaped plate, and the I-shaped plate is clamped inside the card slot.

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

[0008] A sealing assembly is provided on the surface of the gas collecting pipe body. The sealing assembly includes a mounting groove. The mounting groove is opened on the surface of the gas collecting pipe body. A movable frame is slidably connected inside the mounting groove. A sealing gasket is fixedly connected to the surface of the movable frame.

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

[0010] The protrusion is elastically connected to the I-shaped plate through a support spring, and the support spring is sleeved on the outer wall of the positioning rod.

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

[0012] The inner wall of the installation groove is provided with a limiting groove, the interior of the limiting groove is slidably connected to a limiting block, and the limiting block is fixedly connected to the side wall of the moving frame.

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

[0014] The movable frame is elastically connected to the inner wall of the installation groove through multiple groups of return springs.

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

[0016] The air collecting pipe comprises an air collecting pipe body, one end of which is fixedly connected to an air inlet pipe, and the other end of which is fixedly connected to an air outlet pipe.

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

[0018] One-way valves are provided on the surfaces of the air inlet pipe and the air outlet pipe.

[0019] As a further description of the above technical solution:

[0020] A sealing gasket is fixedly connected to the surface of the movable frame.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the cover plate can be opened freely by pulling the I-shaped plate horizontally along the positioning rod and disengaging the slot. After the cover plate is opened, the operator can conveniently carry out inspection or maintenance work. After cleaning, the cover plate is closed and the I-shaped plate is re-engaged in the slot to ensure the stability of the cover plate.

[0023] 2. In the present invention, the movable frame moves upward under the elastic force of the return spring, so that the sealing gasket fits tightly with the bottom surface of the cover plate, thereby improving the sealing effect of the exhaust gas. The cooperation between the limit block and the limit groove ensures that the movable frame moves stably within the vertical movement range, avoiding separation from the installation groove due to excessive movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a rear view structural schematic diagram of the present utility model.

[0025] Figure 2 It is a front view structural schematic diagram of the present utility model.

[0026] Figure 3 This is a schematic diagram of the connection component structure of the present utility model.

[0027] Figure 4 It is a schematic diagram of the opening structure of the utility model.

[0028] Legend: 1. Gas collecting pipe body; 11. Inlet pipe; 12. Outlet pipe; 13. One-way valve; 2. Bend plate; 3. Cover plate; 4. Connecting assembly; 41. Insert plate; 42. Slot; 43. Positioning rod; 44. Bump; 45. I-shaped plate; 46. Support spring; 5. Sealing assembly; 51. Mounting slot; 52. Moving frame; 53. Sealing gasket; 54. Return spring; 55. Limiting slot; 56. Limiting block. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Reference Figure 1 - Figure 2 The utility model provides an embodiment: an air collecting pipe for exhaust gas detection, comprising an air collecting pipe body 1, one end of the air collecting pipe body 1 is fixedly connected to an air inlet pipe 11, and the other end of the air collecting pipe body 1 is fixedly connected to an air outlet pipe 12. A one-way valve 13 is provided on the surface of the air inlet pipe 11 and the air outlet pipe 12. The air inlet pipe 11 is used to connect to the exhaust gas source to introduce the exhaust gas into the interior of the air collecting pipe body 1, and the air outlet pipe 12 discharges the exhaust gas out of the air collecting pipe body 1. The one-way valve 13 ensures that the exhaust gas in the air inlet pipe 11 and the exhaust pipe 12 can only flow in one direction to prevent the exhaust gas from flowing back. The side wall of the air collecting pipe body 1 is hinged with a cover plate 3 through a bent plate 2. The bent plate 2 is fixed to the side wall of the cover plate 3 and is hinged to the side wall of the air collecting pipe body 1, so that the cover plate 3 can be opened or closed when needed.

[0031] Reference Figure 2 - Figure 3A connecting assembly 4 is provided between the cover plate 3 and the gas manifold body 1. This connecting assembly 4 includes an insert plate 41, which is fixedly connected to the side wall of the gas manifold body 1. A slot 42 is defined in the side wall of the insert plate 41. The insert plate 41 forms a raised extension on the side wall of the gas manifold body 1, which fits against the side wall of the gas manifold body 1 when the cover plate 3 is closed. The slot 42 is used to engage with an I-shaped plate 45, thereby securing the cover plate 3. Two sets of symmetrically arranged positioning rods 43 are fixedly connected to the side wall of the gas manifold body 1. The ends of the positioning rods 43 are fixedly connected to protrusions 44. An I-shaped plate 45 is slidably connected to the outer wall of the positioning rods 43. The positioning rods 43 are used to position and guide the I-shaped plate 45, allowing the I-shaped plate 45 to move laterally along the outer wall of the positioning rods 43. I-shaped plate 45 is snapped into place within slot 42. The I-shaped plate 45 engages slot 42 to position insert plate 41. It then cooperates with bent plate 2 to secure both ends of cover plate 3, ensuring stability. Protrusion 44 is elastically connected to I-shaped plate 45 via support spring 46, which sleeves onto the outer wall of positioning rod 43. Support spring 46 provides elastic support for I-shaped plate 45, ensuring a stable connection between I-shaped plate 45 and slot 42.

[0032] Reference Figure 4 The surface of the gas collector body 1 is provided with a sealing assembly 5. The sealing assembly 5 includes a mounting groove 51. The mounting groove 51 is provided on the surface of the gas collector body 1. A movable frame 52 is slidably connected to the interior of the mounting groove 51. A sealing gasket 53 is fixedly connected to the surface of the movable frame 52. The movable frame 52 is elastically connected to the inner wall of the mounting groove 51 via multiple sets of return springs 54. The mounting groove 51 is used to accommodate the movable frame 52 and the multiple sets of return springs 54. The return springs 54 are used to provide support for the upward movement of the movable frame 52, so that the sealing gasket 53 on the surface of the movable frame 52 is tightly fitted with the bottom surface of the cover plate 3, thereby improving the sealing effect of the exhaust gas and preventing exhaust gas leakage. The inner wall of the mounting groove 51 is provided with a limiting groove 55. The limiting groove 55 is slidably connected to a limiting block 56, which is fixedly connected to the side wall of the movable frame 52. The limiting block 56 cooperates with the limiting groove 55 to achieve stable vertical movement of the movable frame 52 and limit the moving range of the movable frame 52 to prevent the movable frame 52 from separating from the mounting groove 51 under the elastic force of the return spring 54.

[0033] Working Principle: When exhaust gas is introduced into the main body of the manifold 1 through the intake pipe 11, the one-way valve 13 ensures that the exhaust gas can only flow in the predetermined direction, preventing backflow of the exhaust gas. The exhaust gas accumulates in the main body of the manifold 1 and is discharged through the outlet pipe 12.

[0034] When the inner wall of the gas collecting pipe body 1 needs to be cleaned, the I-shaped plate 45 is pulled horizontally along the positioning rod 43 to disengage the retaining groove 42, allowing the cover 3 to be freely opened. After the cover 3 is opened, the operator can conveniently perform inspection or maintenance work. After cleaning, the cover 3 is closed and the I-shaped plate 45 is re-engaged in the retaining groove 42 to ensure the stability of the cover 3.

[0035] The movable frame 52 moves upward under the elastic force of the return spring 54, so that the sealing gasket 53 fits tightly with the bottom surface of the cover plate 3, thereby improving the sealing effect of the exhaust gas. The cooperation between the limit block 56 and the limit groove 55 ensures that the movable frame 52 moves stably within the vertical movement range, avoiding separation from the installation groove 51 due to excessive movement.

[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 replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A gas collecting pipe for exhaust gas detection, comprising a gas collecting pipe body (1), characterized in that: The side wall of the gas collecting pipe body (1) is hingedly connected to a cover plate (3) through a bent plate (2), and a connecting assembly (4) is provided between the cover plate (3) and the gas collecting pipe body (1). The connecting assembly (4) includes a plug plate (41), the plug plate (41) is fixedly connected to the side wall of the gas collecting pipe body (1), and a clamping groove (42) is provided on the side wall of the plug plate (41). Two groups of symmetrically arranged positioning rods (43) are fixedly connected to the side wall of the gas collecting pipe body (1), and the ends of the positioning rods (43) are fixedly connected to protrusions (44). The outer wall of the positioning rod (43) is slidably connected to an I-shaped plate (45), and the I-shaped plate (45) is clamped inside the clamping groove (42).

2. The exhaust gas detection collecting pipe according to claim 1, characterized in that: A sealing assembly (5) is provided on the surface of the gas collecting pipe body (1), and the sealing assembly (5) comprises a mounting groove (51). The mounting groove (51) is provided on the surface of the gas collecting pipe body (1), and a moving frame (52) is slidably connected inside the mounting groove (51).

3. The exhaust gas detection collecting pipe according to claim 1, characterized in that: The protrusion (44) is elastically connected to the I-shaped plate (45) via a support spring (46), and the support spring (46) is sleeved on the outer wall of the positioning rod (43).

4. The exhaust gas detection collecting pipe according to claim 2, characterized in that: A limiting groove (55) is provided on the inner wall of the installation groove (51), and a limiting block (56) is slidably connected inside the limiting groove (55), and the limiting block (56) is fixedly connected to the side wall of the movable frame (52).

5. The exhaust gas detection collecting pipe according to claim 2, characterized in that: The movable frame (52) is elastically connected to the inner wall of the mounting groove (51) via multiple groups of return springs (54).

6. The exhaust gas detection collecting pipe according to claim 1, characterized in that: It comprises an air collecting pipe body (1), one end of the air collecting pipe body (1) is fixedly connected to an air inlet pipe (11), and the other end of the air collecting pipe body (1) is fixedly connected to an air outlet pipe (12).

7. The exhaust gas detection collecting pipe according to claim 6, characterized in that: One-way valves (13) are provided on the surfaces of the air inlet pipe (11) and the air outlet pipe (12).

8. The exhaust gas detection collecting pipe according to claim 2, characterized in that: A sealing gasket (53) is fixedly connected to the surface of the movable frame (52).

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