Hammering noise reduction device for municipal road construction

Abstract

The hammering noise reduction device for municipal road construction comprises a boss arranged on the outer side of an impact hammer, a plurality of telescopic rods are installed in the boss in a sliding mode, and the lower ends of the telescopic rods penetrate through the boss to be connected with a sound insulation box. A top telescopic cavity, a middle telescopic cavity and a telescopic groove in the lower end are sequentially formed in the soundproof box from top to bottom, a telescopic column is slidably installed in the top telescopic cavity, the lower end of the telescopic column is located in the middle telescopic cavity and connected with a baffle, and a telescopic plate is arranged below the baffle. The lower end of the telescopic plate is located in the lower telescopic groove and connected with an impact pad. According to the impact hammer, the number of the impact pads is multiple, when any impact pad shrinks, the other impact pads on the side cannot be affected, and therefore after the impact hammer hammers the ground, all the impact pads can be connected with the ground, the impact hammer is fully surrounded, noise transmission is reduced, and the noise reduction effect is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of road construction, and in particular relates to a hammer noise reduction device for municipal road construction. Background Art

[0002] In daily life, municipal roads are connected to various areas of the city, providing transportation and pedestrian use within the city, facilitating residents' life, work, cultural and entertainment activities, and connecting with roads outside the city to carry external traffic. During the construction of municipal roads, we need to use hammering devices to compact the roadbed.

[0003] However, when the existing hammering device for municipal road construction is working, the hammering device will generate a large noise when hammering, which affects people's normal life. To solve the noise, sound insulation and sound absorption materials are generally wrapped on the outside of the impact hammer. However, since the impact hammer will hammer the ground, in order to avoid damage to the sound insulation and sound absorption materials, the sound insulation and sound absorption materials are set higher than the height of the impact hammer. Therefore, there are the following deficiencies when using it: the sound insulation and sound absorption materials cannot completely surround the impact hammer. After the impact hammer hammers the ground, there is a large distance between the sound insulation and sound absorption materials and the ground, making it difficult to reduce the sound of the impact hammer. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a hammer noise reduction device for municipal road construction, and the technical solution adopted is as follows:

[0005] A hammer noise reduction device for municipal road construction includes a boss arranged on the outside of an impact hammer, a plurality of telescopic rods are slidably installed in the boss, and the lower ends of the telescopic rods pass through the boss and are connected to a sound insulation box; a top telescopic cavity, a middle telescopic cavity and a lower telescopic groove are sequentially arranged inside the sound insulation box from top to bottom, a telescopic column is slidably installed in the top telescopic cavity, the lower end of the telescopic column is located in the middle telescopic cavity and is connected to a baffle, a telescopic plate is arranged below the baffle, the lower end of the telescopic plate is located in the lower telescopic groove and is connected to an impact pad.

[0006] Furthermore, the top telescopic cavity, the middle telescopic cavity and the telescopic groove at the lower end are all circular ring structures.

[0007] Furthermore, the opening opened between the top telescopic cavity and the middle telescopic cavity for the telescopic column to pass through is a cylindrical structure with the same shape as the telescopic column, and the opening opened between the middle telescopic cavity and the telescopic groove for the telescopic plate to pass through is an arc structure with the same shape as the telescopic plate. The telescopic plate will not rotate when it is raised or lowered, thereby ensuring the stable lifting of the bottom impact pad.

[0008] Furthermore, a buffer spring is sleeved inside the middle telescopic cavity and outside the telescopic column.

[0009] Furthermore, a buffer pad with an annular structure is provided on the upper surface of the sound insulation box and above the top telescopic cavity to reduce the impact force received by the sound insulation box.

[0010] Furthermore, the number of the telescopic plates, baffles, telescopic columns, impact pads and buffer springs is equal, and a plurality of them are used, and the specific number is based on the number of impact pads that can be arranged in sequence to form a circular ring.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model adopts a plurality of impact pads. When any impact pad shrinks, the other impact pads nearby will not be affected. Therefore, after the impact hammer hits the ground, the impact pads at various locations can be in contact with the ground, fully surrounding the impact hammer, reducing the transmission of noise and achieving a noise reduction effect.

[0013] The moving distance of the telescopic column of the utility model in the top telescopic cavity is smaller than the height of the middle telescopic cavity, and is also smaller than the moving distance of the impact pad in the telescopic groove. Therefore, when the top end of the telescopic column collides and contacts with the buffer pad in the top telescopic cavity, the buffer spring will not be over-compressed and the impact pad will not be completely retracted into the telescopic groove. After contacting the ground, the impact pad remaining outside can reduce the collision between the sound insulation box and the ground, thereby increasing the service life of the sound insulation box. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the impact pad of the utility model;

[0017] Figure 4 This is a schematic diagram of the installation structure of the buffer pad of the utility model;

[0018] Figure 5 This utility model Figure 2 A schematic diagram of the enlarged structure in the middle.

[0019] In the figure:

[0020] 1-impact hammer, 2-boss, 3-soundproof box, 31-telescopic rod, 32-top telescopic cavity, 33-middle telescopic cavity, 34-telescopic slot, 4-buffer pad, 5-impact pad, 51-telescopic plate, 52-baffle, 53-telescopic column, 6-buffer spring. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be described clearly and completely below. Obviously, the described embodiment is only 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 should fall within the scope of protection of the utility model.

[0022] As attached Figure 1-5 shown.

[0023] A hammer noise reduction device for municipal road construction includes a boss 2 with an annular structure arranged on the outside of an impact hammer 1, a sound insulation box 3 is arranged below the boss 2 and around the outside of the impact hammer 1, and a plurality of telescopic rods 31 are arranged on the upper surface of the sound insulation box 3. The upper ends of the telescopic rods 31 pass through the boss 2 and are slidably connected to the boss 2.

[0024] Inside the soundproof box 3, there are provided a top telescopic chamber 32, a middle telescopic chamber 33 and a lower telescopic slot 34 in sequence from top to bottom. A telescopic column 53 is slidably installed in the top telescopic chamber 32. The lower end of the telescopic column 53 is located in the middle telescopic chamber 33 and is connected to the baffle 52. A telescopic plate 51 is provided below the baffle 52. The lower end of the telescopic plate 51 is located in the lower telescopic slot 34 and is connected to an arc-shaped impact pad 5.

[0025] A buffer spring 6 is installed inside the middle telescopic cavity 33 and outside the telescopic column 53. The number of the telescopic plates 51, baffles 52, telescopic columns 53, impact pads 5 and buffer springs 6 is equal, specifically, the number of impact pads 5 that can be arranged in sequence to form a circular ring is used as the basis.

[0026] During use, when the impact hammer 1 descends and strikes the ground, the outer sound insulation box 3 and the inner impact pad 5 descend together. When the impact pad 5 touches the ground, it moves upward. The movement of the impact pad 5 will simultaneously drive the telescopic plate 51, the baffle 52 and the telescopic column 53 to rise. When the baffle 52 rises, under the action of the buffer spring 6, the impact between the top telescopic column 53 and the top of the top telescopic cavity 32 can be slowed down. At the same time, the buffer pad 4 arranged in the top telescopic cavity 32 can also reduce the impact.

[0027] Since the ground is uneven when hammered, the impact pads 5 at different positions rise to different heights. After the impact hammer 1 hits the ground, the impact pads 5 at various locations can be in contact with the ground, fully surrounding the impact hammer 1 to reduce the transmission of noise.

[0028] Due to the impact force of the impact hammer 1, depressions will be hammered out. Therefore, after the impact hammer 1 descends and causes the telescopic column 53 to hit the top surface of the top telescopic cavity 32, the sound insulation box 3 as a whole will rise along the telescopic rod 31. A buffer pad 4 is also provided on the upper surface of the sound insulation box 3, which can reduce the force between the sound insulation box 3 and the ground and between the sound insulation box 3 and the boss 2, thereby ensuring the sound insulation effect while avoiding damage to the sound insulation box 3.

[0029] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the protection scope of the utility model.

Claims

1. A hammer noise reduction device for municipal road construction, comprising a boss (2) arranged on the outside of an impact hammer (1), characterized in that: A plurality of telescopic rods (31) are slidably mounted in the boss (2), and the lower ends of the telescopic rods (31) pass through the boss (2) and are connected to the sound insulation box (3); a top telescopic cavity (32), a middle telescopic cavity (33) and a lower telescopic groove (34) are sequentially provided inside the sound insulation box (3) from top to bottom, and a telescopic column (53) is slidably mounted in the top telescopic cavity (32), the lower end of the telescopic column (53) is located in the middle telescopic cavity (33) and is connected to the baffle (52), and a telescopic plate (51) is provided below the baffle (52), and the lower end of the telescopic plate (51) is located in the lower telescopic groove (34) and is connected to an impact pad (5).

2. A hammer noise reduction device for municipal road construction as claimed in claim 1, characterized in that: The top telescopic cavity (32), the middle telescopic cavity (33) and the telescopic groove (34) at the lower end are all annular structures.

3. A hammer noise reduction device for municipal road construction as claimed in claim 2, characterized in that: The opening opened between the top telescopic cavity (32) and the middle telescopic cavity (33) and used for the telescopic column (53) to pass through is a cylindrical structure having the same shape as the telescopic column (53).

4. A hammer noise reduction device for municipal road construction as claimed in claim 2, characterized in that: The opening opened between the middle telescopic cavity (33) and the telescopic groove (34) for the telescopic plate (51) to pass through is an arc-shaped structure having the same shape as the telescopic plate (51).

5. A hammer noise reduction device for municipal road construction as claimed in claim 1, characterized in that: A buffer spring (6) is sleeved inside the middle telescopic cavity (33) and outside the telescopic column (53).

6. A hammer noise reduction device for municipal road construction as claimed in claim 1, characterized in that: A buffer pad (4) with an annular structure is provided on the upper surface of the sound insulation box (3) and above the top telescopic cavity (32).

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