Wear-resistant ventilation telescopic cover convenient to install

Abstract

The utility model relates to the technical field of ventilation equipment, and discloses a wear-resistant ventilation telescopic cover convenient to install, which is characterized in that an air exhaust assembly is arranged on the upper end surface of a mounting plate, a slot is formed in the mounting plate, a movable block is connected in the slot in a sliding manner, a fixed pipe is arranged on the movable block, and the upper end of the fixed pipe is connected with the air exhaust assembly through a corrugated pipe I; a dust collection cover is arranged below the fixed pipe and connected with the lower end of the fixed pipe through a second corrugated pipe, guide rails are arranged on the front side and the rear side of the open groove of the mounting plate, sliding blocks are slidably connected to the guide rails and connected with the movable blocks, and positioning assemblies are arranged on the sliding blocks and used for positioning the sliding blocks on the guide rails; a height adjusting assembly is arranged on the lower end face of the movable block and used for adjusting the height of the dust collecting cover. The dust collecting device has the advantages that the dust collecting cover can be flexibly adjusted and fixed in the horizontal direction and the vertical direction, and dust generated by different welding spots can be effectively collected.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation equipment, in particular to a wear-resistant ventilation telescopic cover which is easy to install. Background Art

[0002] Electric welding fumes are not easy to disperse, and they contain carbon monoxide, manganese dioxide, nitrogen oxides, fluorides, etc., which float in the air and cause harm to the human body. Inhaling excessive welding fumes can cause dizziness, headaches, coughs, chest tightness, etc. Working in an environment full of welding fumes for a long time can cause fibrous lesions in the lung tissue and induce welder pneumoconiosis. Therefore, during welding operations, a dust hood is needed to collect the fumes generated during welding.

[0003] The horizontal and height positions of the existing welding fume collection hoods cannot be flexibly adjusted as the welding points change, resulting in the dust collection hood not corresponding to the welding point position, affecting the collection effect of the fume generated by welding, and thus failing to effectively protect the health of the operators; at the same time, the existing telescopic hood cannot be effectively and quickly fixed when adjusting the height and overall position, making it inconvenient to use. Utility Model Content

[0004] 1. Technical Problems Solved

[0005] The technical problem to be solved by the utility model is that the position of the existing telescopic hood for collecting electric welding dust cannot be flexibly adjusted and fixed in the horizontal and vertical directions, and the dust generated by different welding points cannot be effectively collected.

[0006] 2. Technical Solution

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a wear-resistant ventilation telescopic cover that is easy to install, comprising a base plate, a support column and a mounting plate, wherein the upper surface of the base plate is provided with a support column, and the support column is connected to the mounting plate.

[0008] The upper surface of the mounting plate is provided with an exhaust assembly, the mounting plate is provided with a slot, a movable block is slidably connected in the slot, a fixed pipe is provided on the movable block, the upper end of the fixed pipe is connected to the exhaust assembly through a bellows 1, a dust hood is provided below the fixed pipe, the dust hood is connected to the lower end of the fixed pipe through a bellows 2, guide rails are provided on the front and rear sides of the slot of the mounting plate, a slider is slidably connected on the guide rail, the slider is connected to the movable block, a positioning assembly is provided on the slider, and the positioning assembly positions the slider on the guide rail;

[0009] A height adjustment component is provided on the lower end surface of the movable block, and the height adjustment component is used to adjust the height of the dust collecting hood.

[0010] Furthermore, the positioning assembly includes a connecting rod and a positioning rod, the lower end surface of the slider is provided with a connecting rod, the lower end of the connecting rod is provided with an end plate, the end plate is slidably connected with a positioning rod, the positioning rod is connected to the slider, a limiting ring is provided on the positioning rod, and a spring is provided between the limiting ring and the end plate.

[0011] Furthermore, the spring sleeve is arranged outside the positioning rod.

[0012] Furthermore, the height adjustment assembly includes a fixed rod and an adjusting rod, the upper end of the fixed rod is connected to the movable block, the lower end of the fixed rod is threadedly connected to the adjusting rod, the lower end of the adjusting rod is connected to the dust collecting hood through a connecting plate, and the adjusting rod is rotatably connected to the connecting plate.

[0013] Furthermore, the exhaust assembly includes a support plate and an exhaust pipe. The upper surface of the mounting plate is provided with a support plate, and the exhaust pipe is provided on the support plate. The exhaust pipe is connected to the bellows.

[0014] Furthermore, the lower end of the support column is rotatably connected to the bottom plate, the upper end of the support column is provided with a connecting block, and a cross bar is symmetrically provided on a surface of the connecting block facing the mounting plate, and the cross bar is slidably connected to the mounting plate.

[0015] Furthermore, a counterweight block is provided on the upper end surface of the base plate, and self-locking universal wheels are provided at the four corners of the lower end surface of the base plate.

[0016] 3. Beneficial Effects

[0017] The advantages of the utility model compared with the prior art are:

[0018] 1. The horizontal position of the dust hood is adjusted by adjusting the position of the movable block in the slot, and the position of the slider connected to the movable block is fixed by the positioning component, so as to fix the horizontal position of the dust hood. The height of the dust hood is adjusted and fixed by the height adjustment component, so that the position of the dust hood corresponds to the position of the electric welding point, thereby ensuring the collection effect of electric welding dust;

[0019] 2. When the height of the dust hood is adjusted by the height adjustment assembly, the fixed tube is fixedly connected to the movable block, and there is no wear between the fixed tube and the movable block. The overall position of the device is adjusted by the self-locking universal wheel on the bottom plate, which is convenient for use in different positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The structure of the utility model is shown in FIG. Figure 1 .

[0021] Figure 2 The structure of the utility model is shown in FIG. Figure 2 .

[0022] Figure 3 It is a structural schematic diagram of the mounting plate of the utility model.

[0023] Figure 4 It is a structural schematic diagram of the positioning component of the utility model.

[0024] Figure numerals: 1, base plate, 2, support column, 3, mounting plate, 4, slot, 5, movable block, 6, fixed pipe, 7, bellows 1, 8, dust hood, 9, bellows 2, 10, guide rail, 11, slider, 12, connecting rod, 13, positioning rod, 14, end plate, 15, limiting ring, 16, spring, 17, fixing rod, 18, adjusting rod, 19, exhaust pipe, 20, connecting block, 21, cross bar, 22, counterweight, 23, self-locking universal wheel. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present utility model are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present utility model.

[0026] It should be noted that all directional indications such as up, down, left, right, front, back... in the embodiments of the utility model are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0027] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0029] The utility model will now be further described in conjunction with the accompanying drawings.

[0030] Embodiment 1

[0031] Combined with Figure 3-4, the mounting plate 3 is provided with a slot 4, a movable block 5 is slidably connected in the slot 4, a fixed tube 6 is provided on the movable block 5, a dust cover 8 is provided below the fixed tube 6, and the dust cover 8 is connected to the lower end of the fixed tube 6 through a bellows 2 9, guide rails 10 are provided on the front and rear sides of the slot 4 of the mounting plate 3, a slider 11 is slidably connected on the guide rail 10, the slider 11 is connected to the movable block 5, a positioning assembly is provided on the slider 11, and the positioning assembly positions the position of the slider 11 on the guide rail 10; the positioning assembly includes a connecting rod 12 and a positioning rod 13, a connecting rod 12 is provided on the lower end surface of the slider 11, an end plate 14 is provided at the lower end of the connecting rod 12, a positioning rod 13 is slidably connected to the end plate 14, the positioning rod 13 is connected to the slider 11, a limiting ring 15 is provided on the positioning rod 13, and a spring 16 is provided between the limiting ring 15 and the end plate 14.

[0032] When adjusting the position of the movable block 5 in the slot 4, the positioning rod 13 is pulled downward so that the positioning rod 13 does not fix the position of the slider 11, and the movable block 5 drives the slider 11 connected thereto to slide on the guide rail 10, thereby adjusting the horizontal position of the dust hood 8. After the position adjustment is completed, the positioning rod 13 is released, and the positioning rod 13 moves toward the guide rail 10 under the action of the spring 16, and the positioning rod 13 fits with the guide rail 10 to prevent the slider 11 from sliding on the guide rail 10, thereby fixing the horizontal position of the dust hood 8.

[0033] Combined with Figure 2 A height adjustment component is provided on the lower end surface of the movable block 5, and the height adjustment component adjusts the height of the dust hood 8. The height adjustment component includes a fixed rod 17 and an adjustment rod 18. The upper end of the fixed rod 17 is connected to the movable block 5, and the lower end of the fixed rod 17 is threadedly connected to the adjustment rod 18. The lower end of the adjustment rod 18 is connected to the dust hood 8 through a connecting plate, and the adjustment rod 18 is rotatably connected to the connecting plate.

[0034] After the horizontal position of the dust hood 8 is adjusted, the length of the adjusting rod 18 exposed from the fixing rod 17 is adjusted by rotating the adjusting rod 18. The adjusting rod 18 adjusts the position of the dust hood 8 in the vertical direction through the connecting plate, so that the position of the dust hood 8 can be flexibly adjusted according to different welding points.

[0035] Combined with Figure 1-2 The upper end surface of the mounting plate 3 is provided with an exhaust assembly, and the upper end of the fixed pipe 6 is connected to the exhaust assembly through a bellows 7. The exhaust assembly includes a support plate and an exhaust pipe 19. The upper end surface of the mounting plate 3 is provided with a support plate, and the support plate is provided with an exhaust pipe 19, and the exhaust pipe 19 is connected to the bellows 7.

[0036] When collecting smoke and dust, the negative pressure device is connected to the exhaust pipe 19, and the smoke and dust generated during electric welding is sucked into the exhaust pipe 19 through the dust collecting hood 8, the bellows 2 9, the fixed pipe 6, and the bellows 1 7.

[0037] Embodiment 2

[0038] Combined with Figure 1-2 The lower end of the support column 2 is rotatably connected to the base plate 1, and a connecting block 20 is provided at the upper end of the support column 2. A cross bar 21 is symmetrically provided on the side of the connecting block 20 facing the mounting plate 3. The cross bar 21 is slidably connected to the mounting plate 3. A counterweight block 22 is provided on the upper end surface of the base plate 1, and self-locking universal wheels 23 are provided at the four corners of the lower end surface of the base plate 1.

[0039] On the basis of the first embodiment, the position of the device can be adjusted and fixed under the action of the self-locking universal wheel 23. By rotating the support column 2, the direction of the mounting plate 3 can be flexibly adjusted, and by adjusting the position of the mounting plate 3 on the crossbar 21, the overall horizontal position of the mounting plate 3 can be adjusted, so that the device can be used in different occasions.

[0040] The utility model and its implementation are described, and such description is not restrictive. The drawings are only one of the implementations of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention of the utility model, they can design a structure and implementation example similar to the technical solution without creativity, which should belong to the protection scope of the utility model.

Claims

1. A wear-resistant ventilated telescopic cover that is easy to install, comprising a base plate (1), a support column (2) and a mounting plate (3), wherein the upper end surface of the base plate (1) is provided with a support column (2), and the support column (2) is connected to the mounting plate (3), characterized in that: The upper end surface of the mounting plate (3) is provided with an exhaust assembly, the mounting plate (3) is provided with a slot (4), a movable block (5) is slidably connected in the slot (4), a fixed pipe (6) is provided on the movable block (5), the upper end of the fixed pipe (6) is connected to the exhaust assembly via a bellows 1 (7), a dust hood (8) is provided below the fixed pipe (6), the dust hood (8) is connected to the lower end of the fixed pipe (6) via a bellows 2 (9), guide rails (10) are provided on the front and rear sides of the slot (4) of the mounting plate (3), a slider (11) is slidably connected to the guide rail (10), the slider (11) is connected to the movable block (5), a positioning assembly is provided on the slider (11), the positioning assembly positions the slider (11) on the guide rail (10); The lower end surface of the movable block (5) is provided with a height adjustment component, and the height adjustment component is used to adjust the height of the dust collecting hood (8).

2. The wear-resistant ventilated telescopic cover that is easy to install according to claim 1, characterized in that: The positioning assembly comprises a connecting rod (12) and a positioning rod (13); the connecting rod (12) is provided on the lower end surface of the slider (11); an end plate (14) is provided at the lower end of the connecting rod (12); the positioning rod (13) is slidably connected to the end plate (14); the positioning rod (13) is connected to the slider (11); a limiting ring (15) is provided on the positioning rod (13); and a spring (16) is provided between the limiting ring (15) and the end plate (14).

3. The wear-resistant ventilated telescopic cover that is easy to install according to claim 2, characterized in that: The spring (16) is sleeved on the outside of the positioning rod (13).

4. The wear-resistant ventilated telescopic cover that is easy to install according to claim 1 is characterized in that: The height adjustment assembly comprises a fixed rod (17) and an adjustment rod (18); the upper end of the fixed rod (17) is connected to the movable block (5); the lower end of the fixed rod (17) is threadedly connected to the adjustment rod (18); the lower end of the adjustment rod (18) is connected to the dust collecting cover (8) via a connecting plate; and the adjustment rod (18) is rotatably connected to the connecting plate.

5. The wear-resistant ventilated telescopic cover that is easy to install according to claim 1 is characterized in that: The exhaust assembly comprises a support plate and an exhaust pipe (19); the upper end surface of the mounting plate (3) is provided with a support plate, the support plate is provided with an exhaust pipe (19), and the exhaust pipe (19) is connected to the bellows 1 (7).

6. The wear-resistant ventilated telescopic cover that is easy to install according to claim 1, characterized in that: The lower end of the support column (2) is rotatably connected to the bottom plate (1), and the upper end of the support column (2) is provided with a connecting block (20). A cross bar (21) is symmetrically provided on a surface of the connecting block (20) facing the mounting plate (3), and the cross bar (21) is slidably connected to the mounting plate (3).

7. The wear-resistant ventilated telescopic cover that is easy to install according to claim 6, characterized in that: A counterweight block (22) is provided on the upper end surface of the base plate (1), and self-locking universal wheels (23) are provided at the four corners of the lower end surface of the base plate (1).

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