Exhaust duct structure

Abstract

The utility model discloses an exhaust duct structure which comprises a shell, a fixing mechanism is installed in the shell and used for fixing a filter screen, the fixing mechanism comprises a filter plate, an installation groove, a sliding rail, a sliding block and an installation block, the filter plate is installed in the shell, the installation groove is formed in the shell, the sliding rail is formed in the shell, and the sliding block is installed in the installation groove. The sliding block is slidably connected into the sliding rail, one side of the mounting block is fixedly connected to the sliding block, and the mounting block is slidably connected into the mounting groove. The filter plate is inserted into the shell along the mounting grooves, and the mounting blocks at the two ends are pressed to slide downwards along the sliding rails, so that the clamping grooves are clamped on the buckles, the effect of quickly mounting the filter plate is achieved, the filter plate is more quickly and stably mounted, the filter plate does not need to be fixed through bolts, and the problem of tedious mounting steps is reduced; and the hidden danger that the filter plate falls off due to vibration, thermal expansion or contraction and the like for a long time is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of exhaust equipment, in particular to an exhaust tube structure. Background Art

[0002] Production workshops usually need to exhaust the internal air to the outside through exhaust equipment, and introduce new air into the workshop through air intake equipment to achieve the purpose of ventilation. There may be dust impurities in the workshop, so the exhaust equipment used generally has a filtering structure to intercept dust and prevent dust from being directly discharged to the outside to cause environmental pollution.

[0003] Existing exhaust duct structures, for example, a check valve for an exhaust duct structure disclosed in Chinese patent application CN219083365U, records: it includes an air inlet section and an air outlet section and a fan arranged therebetween, the fan is installed on the inner side of the wall, the air outlet section passes through the wall and extends to the outer side of the wall, the end of the air inlet section facing away from the fan is detachably connected to a mounting cylinder, a positioning hole plate is fixedly connected to the mounting cylinder, a first threaded section is also provided in the mounting cylinder and is arranged on both sides of the positioning hole plate with the air inlet section, and also includes a filter cylinder accommodated in the mounting cylinder and threadedly connected to the first threaded section, a handle is also fixedly connected to the end surface of the filter cylinder facing away from the positioning hole plate.

[0004] When installing the above-mentioned exhaust duct structure, the filter block must be fixed to the air outlet section by bolts. The installation steps are cumbersome and delay the work progress. Over time, the bolts will gradually loosen due to vibration, thermal expansion or contraction caused by the fan, which will cause failure of the connection part, equipment damage or safety problems. Since the bolts and handles are both set at the air inlet, they will also be filled with dust and dirt, causing them to corrode and rust, making them unable to be disassembled, cleaned and replaced. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides an exhaust duct structure, which has the advantages of convenient installation and solves the problem of bolt installation.

[0007] (II) Technical solution

[0008] In order to achieve the above purpose of not only solving the problem of bolt installation but also ensuring easy removal, the utility model provides the following technical solutions: an exhaust duct structure, comprising an outer shell, a fixing mechanism installed in the outer shell for fixing the filter, the fixing mechanism comprising a filter plate, a mounting groove, a sliding rail, a sliding block and a mounting block, the filter plate is installed in the outer shell, the mounting groove is opened in the outer shell, the sliding rail is opened on the outer shell, the sliding block is slidably connected in the sliding rail, one side of the mounting block is fixedly connected to the sliding block, and the mounting block is slidably connected in the mounting groove.

[0009] As a preferred solution of the exhaust duct structure of the utility model, a slot is provided on one side of the mounting block, and a limiting hole is provided on the upper surface of the mounting block.

[0010] As a preferred solution of the exhaust duct structure of the utility model, a support column is fixedly connected to the lower surface of the mounting block, and a return spring 1 is sleeved on the support column.

[0011] As a preferred solution of the exhaust duct structure of the utility model, a buckle is arranged in the slot, a limiting groove is provided on the inner wall of the shell, and a pull rod is fixedly connected to the buckle.

[0012] As a preferred solution of the exhaust tube structure of the utility model, the pull rod is slidably connected in the shell, and a second return spring is sleeved on the pull rod.

[0013] As a preferred solution of the exhaust duct structure of the utility model, a baffle is sleeved on the pull rod, and the baffle is slidably connected with a slide groove, and the slide groove is opened in the shell.

[0014] Compared with the known prior art, the technical solution provided by the utility model has the following beneficial effects:

[0015] 1. By inserting the filter plate into the housing along the installation slot, pressing the installation blocks at both ends to slide down along the sliding track, the card slot is connected to the buckle, so as to achieve the effect of quickly installing the filter plate, making the installation faster and more stable, without the need to fix it with bolts, reducing the cumbersome installation steps, and no need to worry about the hidden danger of the filter plate falling off due to vibration, thermal expansion or contraction over time;

[0016] 2. By pulling the rod on one side of the shell, the baffle is driven to slide to the left along the slide groove to drive the reset spring 2, so that the buckles at both ends are disengaged from the slot at the same time, so that the mounting block moves upward, driving the buckle to rise from the shell, which plays the role of removing the fixation at the same time, so that the filter plate can be removed quickly and smoothly, which is convenient for cleaning and replacement, and increases the usability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a three-dimensional overall structural schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the installation slot of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the enlarged portion of the installation slot A of the utility model;

[0021] Figure 4 It is a structural schematic diagram of an enlarged portion of the installation slot B of the utility model.

[0022] In the figure: 100, housing; 200, fixing mechanism; 201, filter plate; 202, mounting groove; 203, sliding track; 204, sliding block; 205, mounting block; 206, slot; 207, limiting hole; 208, supporting column; 209, reset spring 1; 210, buckle; 211, limiting slot; 212, pull rod; 213, reset spring 2; 214, baffle; 215, slide groove. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of 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.

[0024] The utility model is further described below in conjunction with embodiments.

[0025] Example 1

[0026] Reference Figure 1-3 , which is the first embodiment of the utility model, provides an exhaust duct structure, which includes a housing 100, and a fixing mechanism 200 is installed in the housing 100 for fixing the filter screen;

[0027] The fixing mechanism 200 includes a filter plate 201, a mounting groove 202, a sliding track 203, a sliding block 204 and a mounting block 205. The filter plate 201 is installed in the shell 100, the mounting groove 202 is opened in the shell 100, the sliding track 203 is opened on the shell 100, the sliding block 204 is slidably connected in the sliding track 203, one side of the mounting block 205 is fixedly connected to the sliding block 204, and the mounting block 205 is slidably connected in the mounting groove 202. The sliding block 204 slides up and down along the sliding track 203 opened in the shell 100, driving the mounting block 205 to slide on the inner wall of the mounting groove 202.

[0028] A slot 206 is provided on one side of the mounting block 205, and a limiting hole 207 is provided on the upper surface of the mounting block 205. The slot 206 is provided to fix the mounting block 205, and the limiting hole 207 is provided to dock the filter plate 201 and fix it on the mounting block 205.

[0029] The lower surface of the mounting block 205 is fixedly connected with a supporting column 208, and a reset spring 209 is sleeved on the supporting column 208. The reset spring 209 sleeved on the supporting column 208 plays a reset role, pushing the mounting block 205 to move upward.

[0030] During use, the filter plate 201 is inserted into the housing 100 along the mounting groove 202, and the mounting blocks 205 at both ends are pressed to slide downward along the sliding track 203, so that the slot 206 is engaged with the buckle 210, thereby achieving the effect of quickly installing the filter plate 201, making the installation faster and more stable, and there is no need to fix it with bolts, reducing the problem of cumbersome installation steps, and there is no need to worry about the hidden danger of the filter plate 201 falling off due to vibration, thermal expansion or contraction over time.

[0031] Example 2

[0032] Reference Figure 1-4 , which is the second embodiment of the utility model, provides an exhaust duct structure, which includes a buckle 210 arranged in a slot 206, a limiting slot 211 is provided on the inner wall of the shell 100, and a pull rod 212 is fixedly connected to the buckle 210. By pulling the pull rod 212 to slide to the left, the buckle 210 is disengaged from the slot 206, and the mounting block 205 moves upward.

[0033] The pull rod 212 is slidably connected in the housing 100 , and a second return spring 213 is sleeved on the pull rod 212 .

[0034] A baffle plate 214 is sleeved on the pull rod 212, and the baffle plate 214 is slidably connected with a slide groove 215, which is opened in the shell 100. Through the slide groove 215 opened in the shell 100, the baffle plate 214 slides to the left to drive the reset spring 213, and the reset spring 213 plays a reset role.

[0035] During use, by pulling the pull rod 212 on one side of the shell 100, the baffle 214 is driven to slide to the left along the slide groove 215, driving the return spring 213, so that the buckles 210 at both ends are disengaged from the slots 206 at the same time, so that the mounting block 205 moves upward, driving the buckle 210 to rise from the shell 100, thereby removing the fixation at the same time, so that the filter plate 201 can be removed quickly and smoothly, which is convenient for cleaning and replacement, and increases the usability of the equipment.

[0036] The remaining structure is the same as that of Example 1.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some of the technical features therein by equivalents. These modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. An exhaust duct structure, comprising a housing (100), characterized in that: A fixing mechanism (200) is installed in the housing (100) for fixing the filter screen; The fixing mechanism (200) comprises a filter plate (201), a mounting groove (202), a sliding track (203), a sliding block (204) and a mounting block (205); the filter plate (201) is mounted in the housing (100); the mounting groove (202) is provided in the housing (100); the sliding track (203) is provided on the housing (100); the sliding block (204) is slidably connected in the sliding track (203); one side of the mounting block (205) is fixedly connected to the sliding block (204); and the mounting block (205) is slidably connected in the mounting groove (202).

2. The exhaust duct structure according to claim 1, characterized in that: A clamping groove (206) is provided on one side of the mounting block (205), and a limiting hole (207) is provided on the upper surface of the mounting block (205).

3. The exhaust duct structure according to claim 1, characterized in that: A support column (208) is fixedly connected to the lower surface of the mounting block (205), and a return spring (209) is sleeved on the support column (208).

4. The exhaust duct structure according to claim 2, characterized in that: A buckle (210) is arranged in the clamping slot (206), a limiting groove (211) is provided on the inner wall of the housing (100), and a pull rod (212) is fixedly connected to the buckle (210).

5. The exhaust duct structure according to claim 4, characterized in that: The pull rod (212) is slidably connected in the housing (100), and a second return spring (213) is sleeved on the pull rod (212).

6. The exhaust duct structure according to claim 4, characterized in that: The pull rod (212) is sleeved with a baffle (214), and the baffle (214) is slidably connected with a slide groove (215), and the slide groove (215) is opened in the housing (100).

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