Dustproof device for building demolition construction

Abstract

The utility model relates to a dustproof device for building demolition construction, which comprises a front plate and a rear plate, the front plate and the rear plate are mutually connected through screws, the front plate comprises a first plate body, an air inlet hole, a connecting blind hole and a shielding rod, and the air inlet hole is arranged on one side, far away from the rear plate, of the first plate body; the shielding rod is arranged on the side, close to the rear plate, of the first plate body; and the connecting column is arranged in the connecting blind hole. Through the arrangement of the front plate, the rear plate and other parts and the matching relation between the air inlet holes and the shielding rods, when the air flow impacts the surface of the front plate, the air flow enters the space between the front plate and the rear plate through the air inlet holes, due to the fact that the air inlet holes are circular truncated cone holes, the flowing speed is increased when the air flow enters, and the pressure intensity of an area with the high flowing speed of the air flow is relatively small; suction force is generated at the air inlet holes, it is guaranteed that air flow enters the air inlet holes as much as possible, the shielding rods prevent air from being exhausted, and dust stays between the front plate and the rear plate.

Description

Technical Field

[0001] The utility model relates to the technical field of dust prevention, in particular to a dust prevention device for building demolition construction. Background Art

[0002] With the rapid development of social economy, the scale of construction is getting larger and larger, resulting in a large amount of dust pollution in the process of demolition of buildings in construction projects. Part of this dust is caused by the material of the building itself, and part of it is the dust raised when the building materials fall and hit the ground.

[0003] Chinese patent CN220539427U discloses a dust prevention device for building demolition construction. The patent adopts a baffle plate to block the dust, so that the dust cannot flow normally with the air, that is, the dust is limited to the construction area. This method prevents dust by blocking the air flow, and cannot absorb and process the dust. When the airflow with dust hits the baffle plate, the airflow is blocked and moves in the direction of the baffle plate. Most of the airflow will be limited to the area surrounded by the baffle plate, so that there is still a lot of dust in the construction area;

[0004] The other part of the airflow with dust will flow upward along the baffle plate, that is, turn over the baffle plate, so that the airflow with dust will drift to places outside the baffle plate. Therefore, a dust prevention device for building demolition construction is proposed to solve the above-mentioned problems. Utility Model Content

[0005] Based on the above description, the utility model provides a dust prevention device for building demolition construction to solve the problem that dust still exists in the construction area surrounded by the baffle plate and the dust partially overflows.

[0006] The utility model provides a technical solution to the above-mentioned technical problem as follows: A dustproof device for building demolition construction, comprising: a front plate and a rear plate, the front plate and the rear plate being connected to each other by screws, the front plate comprising a first plate body, an air inlet, a connecting blind hole and a shielding rod, the air inlet being arranged on a side of the first plate body away from the rear plate, the shielding rod being arranged on a side of the first plate body close to the rear plate, and a connecting column being arranged inside the connecting blind hole.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, a first bottom plate and a top plate are respectively provided at the bottom end and the top end of the first plate body, and the top plate is in contact with the rear plate.

[0009] Furthermore, the air inlet hole is a frustum-shaped hole, and the diameter of the air inlet hole at a side close to the rear plate is smaller than the diameter of the air inlet hole at a side away from the rear plate.

[0010] Furthermore, the surface of the first plate body is provided with interconnected connecting holes and positioning grooves, and the shielding rod is in contact with the surface of the rear plate.

[0011] Furthermore, a side block is provided on one side of the first plate body close to the rear plate, and connecting blind holes are provided on opposite sides of the side blocks on both sides.

[0012] Furthermore, the rear plate includes a second plate body, and a second bottom plate is disposed at the bottom end of the second plate body.

[0013] Furthermore, a positioning column and a vent hole are provided on one side of the second plate body close to the front plate, a threaded blind hole is provided on one side of the positioning column close to the front plate, and the positioning column extends to the inside of the positioning groove.

[0014] Furthermore, the connecting column includes a main body, an outer surface of the main body is provided with an annular groove, a rubber sleeve is provided outside the annular groove, and the rubber sleeve is in contact with the inner wall of the connecting blind hole.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0016] 1. The utility model sets the front plate and the rear plate and other components, and the matching relationship between the air inlet and the shielding rod makes it possible for the airflow to hit the surface of the front plate and enter between the front plate and the rear plate through the air inlet. Since the air inlet is a truncated cone hole, the flow velocity of the airflow will increase when it enters, and the pressure in the area with a fast airflow velocity is relatively small, so suction is generated at the air inlet, thereby ensuring that the airflow with dust enters the air inlet as much as possible, and the setting of the shielding rod hinders the discharge of air, so that the dust stays between the front plate and the rear plate;

[0017] 2. By setting the connecting column, the effect of connecting two adjacent front plates is achieved, so that the dustproof device can be connected and installed according to actual needs, thereby extending the dustproof device. The setting of the rubber sleeve makes the connection between the connecting column and the connecting blind hole tighter. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of a dust prevention device for building demolition construction provided by an embodiment of the utility model;

[0019] Figure 2 for Figure 1 A structural diagram from another perspective;

[0020] Figure 3 This is a schematic diagram of the structure of the front plate in the embodiment of the utility model;

[0021] Figure 4for Figure 3 A structural diagram from another perspective;

[0022] Figure 5 This is a schematic diagram of the structure of the rear plate in the embodiment of the utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the connecting column in the embodiment of the utility model;

[0024] Figure 7 for Figure 6 Schematic diagram of the explosion structure;

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1. Front plate; 11. First plate body; 12. First bottom plate; 13. Top plate; 14. Positioning groove; 15. Connecting hole; 16. Air inlet hole; 17. Side block; 18. Connecting blind hole; 19. Shielding rod; 2. Back plate; 21. Second plate body; 22. Second bottom plate; 23. Positioning column; 24. Threaded blind hole; 25. Air vent; 3. Screw; 4. Connecting column; 41. Main body; 42. Annular groove; 43. Rubber sleeve. DETAILED DESCRIPTION

[0027] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0029] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0030] See also Figure 1-Figure 4The front plate 1 includes a first plate body 11, an air inlet hole 16, a connecting blind hole 18 and a shielding rod 19. The bottom and top ends of the first plate body 11 are respectively provided with a first bottom plate 12 and a top plate 13, the top plate 13 is in contact with the rear plate 2, the air inlet hole 16 is a truncated cone hole, the diameter of the air inlet hole 16 on the side close to the rear plate 2 is smaller than the diameter of the side away from the rear plate 2, the surface of the first plate body 11 is provided with interconnected connecting holes 15 and positioning grooves 14, the shielding rod 19 is in contact with the surface of the rear plate 2, the side of the first plate body 11 close to the rear plate 2 is provided with a side block 17, and the opposite sides of the side blocks 17 on both sides are provided with connecting blind holes 18;

[0031] Based on the above, the air inlet holes 16 arranged on the surface of the front plate 1 play a role in guiding the flow of air. Since the air inlet holes 16 are truncated cone holes, the air flow velocity is accelerated when the air flow passes through the air inlet holes 16 and flows between the front plate 1 and the rear plate 2. The air pressure in the area with fast air flow velocity is reduced, so suction is generated here, attracting the air flow into the air inlet holes 16. After the air flow enters, it diffuses in all directions. During the diffusion process, it contacts the shielding rod 19, so that the dust in the air flow is blocked and falls downward, so as to achieve the effect of separating the air flow and dust.

[0032] like Figure 1 and Figure 5 As shown, the rear plate 2 is connected to the front plate 1 by screws 3, and the rear plate 2 includes a second plate body 21, a second bottom plate 22 is provided at the bottom end of the second plate body 21, a positioning column 23 and a vent hole 25 are provided on the side of the second plate body 21 close to the front plate 1, a threaded blind hole 24 is provided on the side of the positioning column 23 close to the front plate 1, and the positioning column 23 extends to the inside of the positioning groove 14;

[0033] Based on the above, the arrangement of the positioning column 23 and the threaded blind hole 24 enables the rear plate 2 and the front plate 1 to be connected to each other by the screws 3. When the airflow flows from the front plate 1 into between the front plate 1 and the rear plate 2, it can be discharged from the air vent 25.

[0034] like Figure 1 , Figure 6 and Figure 7 As shown, the connecting column 4 is arranged inside the connecting blind hole 18, and the connecting column 4 includes a main body 41, and the outer surface of the main body 41 is provided with an annular groove 42, and the outer surface of the annular groove 42 is provided with a rubber sleeve 43, and the rubber sleeve 43 is in contact with the inner wall of the connecting blind hole 18;

[0035] Based on the above, the setting of the connecting column 4 allows two adjacent front panels 1 to be connected to each other. When the connecting column 4 is inserted into the connecting blind hole 18, the rubber sleeve 43 undergoes a slight elastic deformation, thereby making the connecting column 4 fit tightly with the connecting blind hole 18, that is, the connecting column 4 and the connecting blind hole 18 are connected to each other.

[0036] In actual use of this embodiment, the front plate 1 and the rear plate 2 are connected to each other by screws 3. At this time, the dust prevention device is assembled. When the dust and airflow generated by the demolition of the building hit the surface of the front plate 1, the airflow passes through the air inlet 16 and flows to the area between the front plate 1 and the rear plate 2. In this process, since the air inlet 16 is a truncated cone hole, the cross-sectional area of ​​the airflow becomes smaller, so the airflow velocity is accelerated, and the air pressure in the area with a fast airflow velocity is reduced, so suction is generated here, attracting the airflow into the air inlet 16. After the airflow enters, it diffuses in all directions. During the diffusion process, it contacts the shielding rod 19, so that the dust in the airflow is blocked and falls downward, so as to achieve the effect of separating the airflow and dust.

[0037] The airflow separated from the dust can be discharged from the air vent 25. When discharged, most of the dynamic pressure of the airflow is converted into static pressure. Therefore, the flow rate of the airflow is relatively slow, and the falling dust will not be lifted up again. The separated dust gradually falls downward under the action of gravity, thereby achieving a dust-proof effect.

[0038] Compared with the method of using only baffles in the comparative patent, this device can utilize the airflow movement during building demolition to separate the airflow from dust, thereby achieving a dust-proof effect. This method can effectively reduce dust in the air, so that dust in the construction area can also be reduced. Moreover, this method can directionally guide the direction of airflow flow, that is, movement along the direction of the front plate 1 and movement through the air inlet 16, adding a movement direction, reducing the airflow moving upward along the front plate 1, thereby preventing dust from overflowing from above the baffle.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 dust prevention device for building demolition construction, characterized in that: include: A front plate (1) and a rear plate (2) are connected to each other via screws (3), wherein the front plate (1) comprises a first plate body (11), an air inlet hole (16), a connecting blind hole (18) and a shielding rod (19), wherein: an air inlet (16), which is arranged on a side of the first plate (11) away from the rear plate (2); a shielding rod (19) arranged on a side of the first plate body (11) close to the rear plate (2); A connecting column (4) is arranged inside the connecting blind hole (18).

2. The dustproof device according to claim 1, characterized in that: A first bottom plate (12) and a top plate (13) are respectively provided at the bottom and top ends of the first plate body (11), and the top plate (13) is in contact with the rear plate (2).

3. The dustproof device according to claim 2, characterized in that: The air inlet hole (16) is a truncated cone hole, and the diameter of the air inlet hole (16) on the side close to the rear plate (2) is smaller than the diameter of the air inlet hole (16) on the side away from the rear plate (2).

4. The dustproof device according to claim 3, characterized in that: The surface of the first plate body (11) is provided with interconnected connecting holes (15) and positioning grooves (14), and the shielding rod (19) is in contact with the surface of the rear plate (2).

5. The dustproof device according to claim 4, characterized in that: A side block (17) is provided on one side of the first plate body (11) close to the rear plate (2), and connecting blind holes (18) are provided on opposite sides of the side blocks (17) on both sides.

6. The dustproof device according to claim 4, characterized in that: The rear plate (2) comprises a second plate body (21), and a second bottom plate (22) is arranged at the bottom end of the second plate body (21).

7. The dustproof device according to claim 6, characterized in that: A positioning column (23) and a vent hole (25) are provided on one side of the second plate body (21) close to the front plate (1); a threaded blind hole (24) is provided on one side of the positioning column (23) close to the front plate (1); and the positioning column (23) extends to the interior of the positioning groove (14).

8. The dustproof device according to claim 5, characterized in that: The connecting column (4) comprises a main body (41), the outer surface of the main body (41) is provided with an annular groove (42), the outside of the annular groove (42) is provided with a rubber sleeve (43), and the rubber sleeve (43) is in contact with the inner wall of the connecting blind hole (18).

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