A trencher construction guard fence

Abstract

The present application belongs to the technical field of construction fence, and in particular to a trencher construction protective fence, which comprises a fence plate, a plurality of sound absorption holes are formed on the outside of the fence plate, a sound collection groove is formed in the inside of the fence plate, and the plurality of sound absorption holes are in communication with the sound collection groove; the plurality of fence plates are arranged to build the trencher construction protective fence, the sound absorption holes are in communication with the sound collection groove, the arc-shaped plate inner wall absorbs noise, the noise absorption and noise reduction effect is achieved, the plurality of pulleys at the bottom ends of the plurality of sliding plates rotate to realize the displacement effect of the fence plate, the first rotating plate and the second rotating plate rotate in the fixed frame and are respectively clamped in the first fixed block and the second fixed block to fix, the height of the baffle is limited, the first guide plate and the second guide plate are guided and matched to guide the noise to the inside of the sound absorption plate for absorption, and the diffusion of noise pollution is reduced.

Description

Technical Field

[0001] This invention belongs to the field of construction fence technology, specifically a construction protective fence for trenching machines. Background Technology

[0002] Trenching machines, also known as slotting machines, come in many models, such as multi-head drills, spiral drills, punching grabs, as well as planing, disc milling, wheel milling, and clamping types. They are mainly used to excavate trenches in soil or rock.

[0003] During trenching machine construction, due to the large size of the trenching machine, open construction can easily cause safety hazards. Therefore, construction safety fences are used to enclose the construction area, which can effectively prevent construction accidents from occurring.

[0004] When trenching machines are used for construction near urban residential buildings, the noise generated by the machines is quite loud. Currently used construction safety fences are mainly for the safety of people, but the noise pollution generated by the machines can easily affect the lives of residents in the surrounding communities. In severe cases, it can lead to complaints and cause the project to be halted.

[0005] Therefore, the present invention provides a protective fence for trenching machine construction. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this invention to solve its technical problem is as follows: A protective fence for trenching machine construction, comprising a fence panel; multiple sets of sound-absorbing holes are opened on the outside of the fence panel; a sound-collecting groove is opened inside the fence panel, and the multiple sets of sound-absorbing holes are connected to the sound-collecting groove; sound-insulating cotton is installed inside the fence panel and adhered to the sound-collecting groove; a baffle is slidably connected to the inner wall of the fence panel; an arc-shaped plate is fixed to the top of the baffle; the inner wall of the arc-shaped plate is curved; sound-absorbing cotton is fixed to the inner wall of the arc-shaped plate; by utilizing the curved shape of the arc-shaped plate to form a turning point, noise is temporarily retained on the inner wall of the arc-shaped plate, and ultimately most of the noise is absorbed by the sound-absorbing cotton at the arc-shaped plate, thereby reducing the noise pollution caused by trenching machine construction noise to residential areas.

[0008] Preferably, the bottom end of the baffle is fixedly connected to a sliding plate, and three sets of sliding plates are provided; the three sets of sliding plates are composed of a sliding part and a counterweight part; the sliding parts of the three sets of sliding plates slide on the inner wall of the fence panel, and the counterweight part of the sliding plate is rotatably connected to a pulley; this facilitates the rapid construction of multiple sets of fence panels, and after the baffle cooperates with the sliding part of the sliding plate to slide up and raise the inner wall of the fence panel, the baffle forms protection for the surrounding area while increasing the range of noise blocking.

[0009] Preferably, a fixing frame is fixedly attached to the surface of one set of sliding plates; a first rotating plate and a second rotating plate are rotatably connected inside the fixing frame via rotating rods; a limiting hole is provided in the middle of the first rotating plate and the second rotating plate; the first rotating plate and the second rotating plate are arranged alternately up and down; a limiting component is provided on the surface of the fence plate, which is used to fix the sliding plate in conjunction with the first rotating plate and the second rotating plate; after the baffle is raised and fixed by using the limiting component, the three sets of pulleys are located inside the fence plate, and the bottom surface of the fence plate is in contact with the ground, thereby serving to store the three sets of pulleys.

[0010] Preferably, the limiting component includes a first fixing block, a second fixing block, and a pin; the first fixing block and the second fixing block are both fixed to the surface of the fence panel, and the first fixing block and the second fixing block are located on both sides of the fixing frame; the first fixing block and the second fixing block are respectively provided with limiting grooves corresponding to the first rotating plate and the second rotating plate; the pin is inserted into the inside of the first fixing block and the second fixing block, and the pin also passes through the limiting holes of the first rotating plate and the second rotating plate; it plays a role in assisting noise reduction for adjusting the height of the baffle.

[0011] Preferably, a sound-absorbing panel is fixedly connected to the inside of the fence panel, and the sound-absorbing panel is located at the sound collection groove; the sound-absorbing panel has a sound-absorbing groove inside; a first guide plate and a second guide plate are fixedly connected to the inner wall of the fence panel respectively, and each of the first and second guide plates has three sets of fixed connections; the three sets of first guide plates are curved in shape and are located above the second guide plates; the inner walls of the three sets of second guide plates have multiple sets of sound-permeable holes, and the curved shape of the second guide plates leads into the interior of the sound-absorbing panel; the sound-absorbing panel absorbs noise to improve the noise reduction effect, and when some noise is temporarily retained on the second guide plate, it is temporarily retained inside the fence panel through the multiple sets of sound-permeable holes of the second guide plate, further improving the noise absorption effect of the fence panel.

[0012] Preferably, a storage box is fixedly connected inside the fence panel, and the storage box is located above the counterweight of the sliding plate; an extruder is slidably connected to the inner wall of the storage box; the extruder consists of a set of round rods and two sets of square plates, and the two sets of square plates are fixed to both ends of the round rods; one end of a first elastic element is fixedly connected to the inner wall of the storage box, and the other end of the first elastic element is fixedly connected to the top square plate of the extruder; a flow channel is opened inside the fence panel, and the flow channel is connected to the storage box; thereby filling the gap between the fence panel and the ground, facilitating the noise absorption effect of placing the fence panel on uneven ground.

[0013] Preferably, the side of the fence panel is provided with an assembly frame; the bottom of the assembly frame is fixedly connected to a counterweight; the inside of the assembly frame is provided with a snap-fit ​​groove, and multiple sets of snap-fit ​​grooves are provided; the inside of the assembly frame is provided with an assembly component, which is used for assembling multiple sets of fence panels; this reduces the gaps at the corners of two sets of fence panels, and multiple sets of assembly frames and multiple sets of fence panels can be spliced ​​together during fence construction to form a fence with good sealing performance.

[0014] Preferably, limit blocks are fixed to both outer sides of the fence panel, and multiple sets of limit blocks are fixedly connected; the bottom center of the multiple sets of limit blocks is concave arc-shaped, and a square groove is opened in the center of the limit blocks; the assembly component includes a locking block, a first limiting protrusion, and a second elastic element; the locking block is fixed inside the assembly frame and is located at the locking groove of the assembly frame; the locking block is composed of a support part and a locking part; the locking part of the first limiting protrusion is correspondingly arranged with the square groove of the limit block; the first limiting protrusion is slidably connected to the locking part of the locking block; the second elastic element is fixed to the inner wall of the locking part of the locking block, and one end of the second elastic element is fixed to the surface of the first limiting protrusion; this serves to limit the multiple sets of limit blocks, facilitating the splicing and assembly of the fence.

[0015] Preferably, a counterweight frame is fixedly connected to the surface of the fence panel; four sets of counterweight frames are fixedly connected, and the four sets of counterweight frames are symmetrically arranged in pairs on the surface of the fence panel; the inner wall of the counterweight frame is arc-shaped; it has the effect of reinforcing and stabilizing the fence panel, and at the same time, by utilizing the arc-shaped inner wall of the counterweight frame, when the trenching machine generates noise during construction, some of the noise will be guided by the arc-shaped inner wall of the counterweight frame and introduced into the sound-absorbing holes, thus playing an auxiliary noise reduction role.

[0016] Preferably, the fence panel has a slot inside; the counterweight frame has an insert plate fixed to its surface, and the insert plate corresponds to the slot; the insert plate has a second limiting protrusion installed inside by an elastic block, and there are two sets of the second limiting protrusion; it serves to assemble the counterweight frame, and when disassembling the counterweight frame, it can be pulled out by force, which facilitates the disassembly and assembly of the counterweight frame.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. The trenching machine construction protective fence of the present invention is constructed by setting multiple sets of fence panels to build a trenching machine construction protective fence. It relies on sound-absorbing holes connected to sound collection grooves, and the inner wall of the arc-shaped plate absorbs noise, thereby playing a role in noise absorption and reduction. Furthermore, the rotation of pulleys inside the bottom of multiple sets of sliding plates realizes the displacement effect of the fence panels. The first and second rotating plates rotate inside the fixed frame and are respectively locked inside the first and second fixed blocks, which plays a role in limiting the height of the baffle. The first and second guide plates guide the noise to the inside of the sound-absorbing plate for absorption, thereby reducing the diffusion of noise pollution.

[0019] 2. The trenching machine construction protective fence of the present invention uses a storage box filled with expanding foam. When the sliding plate slides down and presses against the extruder, the expanding foam inside the storage box is squeezed into the gap between the fence panel and the ground to fill the gap and reduce sound transmission. Two sets of fence panels are fixed inside the assembly frame to splice the corners of the two sets of fence panels. The upper limit is achieved by the limit block pressing the card block, which achieves the effect of stabilizing the two sets of fence panels and the assembly frame. Finally, four sets of counterweight frames are fixed on the surface of the fence panels to provide weight to the fence panels and assist in noise guidance. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1 This is a perspective view of the present invention;

[0022] Figure 2 This is a schematic diagram of the fence panel in this invention;

[0023] Figure 3 This is a partial structural cross-sectional view of the assembly frame in this invention;

[0024] Figure 4 This is a partial structural cross-sectional view of the card block in this invention;

[0025] Figure 5 This is a schematic diagram of the structure of the first fixing block in this invention;

[0026] Figure 6 This is a schematic diagram of the baffle structure in this invention;

[0027] Figure 7 This is a schematic diagram of the structure of the fixing block in this invention;

[0028] Figure 8 This is a partial structural cross-sectional view of the fence panel in this invention;

[0029] Figure 9 This is a schematic diagram of the structure of the fixing frame in this invention;

[0030] Figure 10 This is a schematic diagram of the counterweight frame in Embodiment 2 of the present invention.

[0031] In the diagram: 1. Fence panel; 11. Sound-absorbing hole; 12. Sound-collecting groove; 13. Baffle; 14. Curved plate; 15. Sound-absorbing cotton; 2. Sliding plate; 21. Pulley; 3. Fixing frame; 31. Rotating plate No. 1; 32. Rotating plate No. 2; 4. Fixing block No. 1; 41. Fixing block No. 2; 42. Pin; 5. Sound-absorbing panel; 51. Guide plate No. 1; 52. Guide plate No. 2; 6. Storage box; 61. Extruder; 62. Elastic component No. 1; 63. Flow channel; 7. Assembly frame; 71. Counterweight seat; 8. Limiting block; 81. Locking block; 82. Limiting rod No. 1; 83. Elastic component No. 2; 9. Counterweight frame; 91. Insert plate; 92. Limiting rod No. 2; 93. Slot. Detailed Implementation

[0032] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0033] Example 1

[0034] like Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 8As shown in the embodiment of the present invention, a construction protective fence for a trenching machine includes a fence panel 1; the fence panel 1 has multiple sets of sound-absorbing holes 11 on its exterior; the fence panel 1 has a sound-collecting groove 12 inside, and the multiple sets of sound-absorbing holes 11 are connected to the sound-collecting groove 12; sound-insulating cotton is installed inside the fence panel 1, and the sound-insulating cotton is adhered to the sound-collecting groove 12; the sound-collecting groove 12 is used to absorb noise; a baffle 13 is slidably connected to the inner wall of the fence panel 1; an arc-shaped plate 14 is fixedly connected to the top of the baffle 13; the arc-shaped plate 14... The inner wall of 4 is curved; sound-absorbing cotton 15 is fixed to the inner wall of the curved plate 14; when the trenching machine is working near urban residential buildings, the noise generated by the machine is relatively large, and the construction protection fences currently used are mainly for the safety of people. However, the noise pollution generated by the machine can easily affect the lives of people in the surrounding communities, and may even lead to complaints and project stagnation when it seriously disturbs the peace. Therefore, the specific implementation of this embodiment is to use the fence plate 1 as the main structure for the trenching machine construction protection in residential areas. When using a trenching machine, multiple sets of fence panels 1 are erected in a square configuration, surrounding the trenching machine in the center of the square. The distance between the multiple sets of fence panels 1 and the trenching machine is controlled at 0.5-1 meter, and the height of the fence panels 1 is approximately 1-3 meters. This can be used to protect the construction site. A baffle 13 can slide inside the fence panel 1. The baffle 13 drives the curved plate 14 to slide upwards, extending and fixing it to the inner wall of the fence panel 1, thus raising the height of the protective fence. When the trenching machine generates noise during construction, multiple sets of sound-absorbing holes 11 on the outside of the fence panel 1 are used to absorb the noise. The sound collection groove 12 is connected, and the noise is blocked from all sides. It enters the sound collection groove 12 opened in the fence panel 1 through multiple sets of sound absorption holes 11. The noise accumulates inside the fence panel 1 and is absorbed by the sound insulation cotton. Some of the noise will penetrate upward through the opening of the sound collection groove 12 and then rush to the inner wall of the arc plate 14. The arc shape of the arc plate 14 forms a turning point, so that the noise is temporarily retained on the inner wall of the arc plate 14. Finally, most of the noise is absorbed by the sound absorption cotton 15 at the arc plate 14, thereby reducing the noise pollution caused by the construction noise of the trenching machine to the residential area.

[0035] like Figure 1 , Figure 5 , Figure 6 , Figure 7 and Figure 9As shown, the bottom end of the baffle 13 is fixedly connected to a sliding plate 2, and the sliding plate 2 is provided in three sets; the three sets of sliding plates 2 are composed of a sliding part and a counterweight part; the sliding parts of the three sets of sliding plates 2 slide on the inner wall of the fence panel 1, and the counterweight part of the sliding plate 2 is rotatably connected to a pulley 21; when multiple sets of fence panels 1 are transported and erected to build a protective fence, in order to facilitate the rapid movement of multiple sets of fence panels 1 to build a fence and reduce noise of the trenching machine, the bottom end of the baffle 13 is fixedly connected to three sets of sliding plates 2 respectively. When the baffle 13 is fixed to the bottom end of the inner wall of the fence panel 1, the three sets of pulleys 21 are lower than the bottom surface of the fence panel 1 and push the fence panel 1 to move. Relying on the rotation of the three sets of pulleys 21 in the counterweight part at the bottom end of the three sets of sliding plates 2 respectively, the single set of fence panels 1 is moved in the construction area, thereby facilitating the rapid erection of multiple sets of fence panels 1. In addition, after the baffle 13 and the sliding part of the sliding plate 2 slide up the inner wall of the fence panel 1 and raise it, the baffle 13 forms protection for the surrounding area and increases the range of noise blocking.

[0036] A set of sliding plates 2 are fixedly connected to a fixing frame 3; the interior of the fixing frame 3 is rotatably connected to a first rotating plate 31 and a second rotating plate 32 via a rotating rod; both the first rotating plate 31 and the second rotating plate 32 have limit holes in their middle parts; the first rotating plate 31 and the second rotating plate 32 are arranged in an alternating vertical arrangement; the surface of the fence plate 1 is provided with a limit component, which is used to cooperate with the first rotating plate 31 and the second rotating plate 32 to fix the sliding plate 2; the first rotating plate 31 and the second rotating plate 32 are used to limit the height of the sliding plate 2; when the fence is erected and the fence plate 1 is moved quickly, the first rotating plate 31 and the second rotating plate 32 can be rotated simultaneously to opposite sides of the fixing frame 3 via the rotating rod, relying on the limit hole. The limiting components at the positioning holes fix the first rotating plate 31 and the second rotating plate 32, so that the baffle 13 is located at the bottom of the inner wall of the fence panel 1. Then, the three sets of pulleys 21 are lower than the bottom surface of the fence panel 1, which can push the fence panel 1 to rotate in coordination with the three sets of pulleys 21 to move the position of the fence panel 1 quickly. After the fence panel 1 moves to the erection position, the first rotating plate 31 and the second rotating plate 32 are retracted into the inside of the fixing frame 3. After the baffle 13 is slid up the inner wall of the fence panel 1, the first rotating plate 31 and the second rotating plate 32 are rotated to the sides again. The limiting components are used to raise the height of the baffle 13 and fix it, so that the three sets of pulleys 21 are located inside the fence panel 1 and the bottom surface of the fence panel 1 is in contact with the ground, thereby playing the role of storing the three sets of pulleys 21.

[0037] like Figure 1 , Figure 5 , Figure 6 and Figure 9As shown, the limiting assembly includes a first fixing block 4, a second fixing block 41, and a pin 42. The first fixing block 4 and the second fixing block 41 are both fixed to the surface of the fence panel 1, and are located on opposite sides of the fixing frame 3. The first fixing block 4 and the second fixing block 41 each have corresponding limiting grooves for the first rotating plate 31 and the second rotating plate 32. The pin 42 is inserted into the interior of the first fixing block 4 and the second fixing block 41, and also passes through the limiting holes of the first rotating plate 31 and the second rotating plate 32. When the fence panel 1 is moved, the three sets of first fixing blocks 4 and second fixing blocks 41 are fixed to the surface of the fence panel 1. When the fence panel 1 needs to slide, the fixing frame 3 is placed at the bottom of the first fixing block 4 on the surface of the fence panel 1. Parallel to the second fixing block 41, rotate the first rotating plate 31 and the second rotating plate 32 accordingly, so that the first rotating plate 31 is inserted into the internal limiting groove of the first fixing block 4, and the second rotating plate 32 is inserted into the internal limiting groove of the second fixing block 41. Finally, use the pin 42 to pass through the limiting holes of the first rotating plate 31 and the second rotating plate 32, and insert it into the internal limiting of the first fixing block 4 and the second fixing block 41, so as to extend the three sets of pulleys 21 to move the fence plate 1. At the same time, when raising the height of the baffle 13 to limit noise, slide the fixing frame 3 up to the first fixing block 4 and the second fixing block 41 parallel to the middle or top of the surface of the fence plate 1. Then fix the first rotating plate 31 and the second rotating plate 32 into the internal limiting of the first fixing block 4 and the second fixing block 41, so as to assist in the noise reduction by adjusting the height of the baffle 13.

[0038] like Figure 1 and Figure 8 As shown, a sound-absorbing plate 5 is fixedly connected inside the fence panel 1, and the sound-absorbing plate 5 is located at the sound collection groove 12; the sound-absorbing plate 5 has a sound-absorbing groove inside; a first guide plate 51 and a second guide plate 52 are fixedly connected to the inner wall of the fence panel 1, and each of the first guide plate 51 and the second guide plate 52 has three sets of fixed connections; the three sets of first guide plates 51 are curved in shape and are located above the second guide plates 52; the inner walls of the three sets of second guide plates 52 have multiple sets of sound-permeable holes, and the second guide plates 52 are curved in shape and lead to the interior of the sound-absorbing plate 5; when the noise generated by the grooving machine is absorbed by the fence panel 1, To improve the noise reduction effect, the sound-absorbing panel 5 is fixed inside the fence panel 1 and located at the sound collection groove 12. When noise enters the interior of the fence panel 1 through the sound-absorbing hole 11, the noise is first blocked by the first guide plate 51, and some of the noise is temporarily retained on the second guide plate 52. Most of the noise is guided to the sound-absorbing groove of the sound-absorbing panel 5 through the inner wall of the second guide plate 52. The sound-absorbing panel 5 absorbs the noise and improves the noise reduction effect. When some noise is temporarily retained on the second guide plate 52, it is temporarily retained inside the fence panel 1 through the multiple sets of sound-permeable holes of the second guide plate 52, further improving the noise absorption effect of the fence panel 1.

[0039] A storage box 6 is fixedly connected inside the fence panel 1, and the storage box 6 is located above the counterweight of the sliding plate 2; a compressor 61 is slidably connected to the inner wall of the storage box 6; the compressor 61 consists of a set of round rods and two sets of square plates, and the two sets of square plates are fixed to both ends of the round rods; one end of a first elastic element 62 is fixedly connected to the inner wall of the storage box 6, and the other end of the first elastic element 62 is fixedly connected to the top square plate of the compressor 61; a flow channel 63 is opened inside the fence panel 1, and the flow channel 63 connects to the storage box 6; when the fence panel 1 is placed on the ground to build a fence, due to the unevenness of some parts of the ground, gaps are generated between the bottom surface of the fence panel 1 and the ground, from... However, this affects the noise absorption effect. Therefore, a storage box 6 is fixed inside the fence panel 1 and located above the counterweight of the sliding plate 2. The storage box 6 is filled with expanding foam. When the fence panel 1 is moved and placed on the ground, the counterweight of the sliding plate 2 slides up the inner wall of the fence panel 1 along with the baffle 13. The sliding plate 2 presses and slides against the bottom end of the extruder 61. The top end of the extruder 61 slides and presses the expanding foam inside the storage box 6. The first elastic element 62 is compressed and subjected to force. The expanding foam is sprayed into the space between the fence panel 1 and the ground through the guide channel 63. As the expanding foam reacts and expands, it fills the gap between the fence panel 1 and the ground, making it easier to place the fence panel 1 on uneven ground to absorb noise.

[0040] like Figure 1 and Figure 3 As shown, an assembly frame 7 is provided on the side of the fence panel 1; a counterweight seat 71 is fixedly connected to the bottom of the assembly frame 7; the assembly frame 7 has a snap-fit ​​groove inside, and multiple sets of snap-fit ​​grooves are provided; the assembly frame 7 has an assembly component inside, which is used to assemble multiple sets of fence panels 1; when building a fence with multiple sets of fence panels 1, gaps are likely to appear at the corners when multiple sets of fence panels 1 are built together. In order to improve the stability and noise reduction effect of the fence construction, the assembly frame 7 is fixed at the corners where two sets of fence panels 1 are built. The assembly frame 7 has multiple sets of snap-fit ​​grooves inside, which can be used to splice two sets of fence panels 1 using the assembly component. The counterweight seat 71 is fixed at the bottom of the assembly frame 7 to increase gravity, making the splicing of two sets of fence panels 1 more stable. Furthermore, by installing the assembly frame 7 at the corners of two sets of fence panels 1, gaps are reduced at the corners of two sets of fence panels 1. When building a fence, multiple sets of assembly frames 7 and multiple sets of fence panels 1 can be spliced ​​together to form a fence with good sealing performance.

[0041] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, limit blocks 8 are fixed to both sides of the outer side of the fence panel 1, and multiple sets of limit blocks 8 are fixedly connected; the bottom center of the multiple sets of limit blocks 8 is concave arc-shaped, and a square groove is opened in the center of the limit block 8; the assembly component includes a locking block 81, a first limiting protrusion 82, and a second elastic element 83; the locking block 81 is fixed inside the assembly frame 7, and the locking block 81 is located at the locking groove of the assembly frame 7; the locking block 81 is composed of a support part and a locking part; the locking part of the first limiting protrusion 82 is correspondingly set with the square groove of the limit block 8; the first limiting protrusion 82 is slidably connected to the locking part of the locking block 81; the second elastic element 83 is fixed to the inner wall of the locking part of the locking block 81, and one end of the second elastic element 83 is fixed to the surface of the first limiting protrusion 82; when the corner of the two sets of fence panels 1 is built, multiple sets of limit blocks 81 are fixedly connected to the outer side of the fence panel 1. The positioning blocks 8 are fixed on both sides of the fence panel 1. The three sets of positioning blocks 8 are slidably pushed into the interior of the assembly frame 7 along with the fence panel 1. The positioning blocks 8 are positioned above the locking blocks 81. After the pulley 21 is retracted into the interior of the fence panel 1, the fence panel 1 falls to the ground and descends. The multiple sets of positioning blocks 8 press on the locking blocks 81, and the concave arc-shaped surface at the bottom center of the positioning blocks 8 fits against the support part of the locking blocks 81. At the same time as the positioning blocks 8 press down on the locking part of the locking blocks 81, the first positioning protrusion 82 is squeezed back into the locking part of the locking blocks 81, and the second elastic element 83 contracts and is subjected to force. When the locking part of the locking blocks 81 passes through the square groove in the middle of the positioning blocks 8, the second elastic element 83 squeezes the first positioning protrusion 82 to reset, and the positioning blocks 8 are positioned on the locking blocks 81, which plays the role of limiting the multiple sets of positioning blocks 8, making it easier to splice and build the fence.

[0042] like Figure 1 and Figure 5 As shown, a counterweight frame 9 is fixedly connected to the surface of the fence panel 1; four sets of counterweight frames 9 are fixedly connected, and the four sets of counterweight frames 9 are symmetrically arranged in pairs on the surface of the fence panel 1; the inner wall of the counterweight frame 9 is arc-shaped; after the main structure of the trenching machine construction protective fence is built, in order to improve the support stability of multiple sets of fence panels 1, four sets of counterweight frames 9 are symmetrically installed on both sides of the fence panel 1. Relying on the gravity cooperation of the four sets of counterweight frames 9, the fence panel 1 is reinforced and stabilized. At the same time, using the arc-shaped inner wall of the counterweight frame 9, when the trenching machine generates noise, some of the noise will be guided by the arc-shaped inner wall of the counterweight frame 9 and introduced into the sound absorption hole 11, which plays an auxiliary role in noise reduction.

[0043] Example 2

[0044] like Figure 10As shown in the comparative embodiment one, another embodiment of the present invention is as follows: a slot 93 is provided inside the fence panel 1; an insert plate 91 is fixedly connected to the surface of the counterweight frame 9, and the insert plate 91 corresponds to the slot 93; a second limiting protrusion 92 is installed inside the insert plate 91 by means of an elastic block, and two sets of the second limiting protrusion 92 are provided; when installing multiple sets of counterweight frames 9, in order to facilitate the disassembly and assembly of the counterweight frames 9, the insert plate 91 is fixed to the back of the counterweight frame 9, and the counterweight frame 9 is inserted into the slot 93 inside the fence panel 1. When the two sets of second-order limiting protrusions 92 are pressed into the insert plate 91 by the inner wall of the fence plate 1, the elastic block is squeezed and contracted under force, and the slot 93 is provided with holes corresponding to the second-order limiting protrusions 92. When the insert plate 91 slides the inner wall of the fence plate 1, it drives the two sets of second-order limiting protrusions 92 to be located in the corresponding holes at the slot 93. The two sets of second-order limiting protrusions 92 are squeezed out by the elastic block and locked into the corresponding holes. With the insert plate 91 as the support point, it plays the role of assembling the counterweight frame 9. When disassembling the counterweight frame 9, it can be pulled out directly by force, which is convenient for disassembling and assembling the counterweight frame 9.

[0045] During the operation, when constructing a protective fence for the trenching machine, fence panel 1 serves as the main structure for protection. When using the trenching machine in residential areas, multiple sets of fence panels 1 are arranged in a square, surrounding the trenching machine in the center of the square. The distance between the multiple sets of fence panels 1 and the trenching machine is controlled at 0.5-1 meter, and the height of the fence panels 1 is approximately 1-3 meters. This structure can be used to protect the construction site. Baffle 13 can slide inside the fence panel 1. Baffle 13 drives the arc-shaped plate 14 to slide upwards, extending and fixing it to the inner wall of the fence panel 1, thus raising the height of the protective fence. Three sets of pulleys 21 are lower than the bottom surface of the fence panel 1 and push the fence panel 1 to move. Each set of three sets of pulleys 21 in the counterweight at the bottom of the three sliding plates 2 rotates, driving a single set of fence panels 1. When moving within the construction area, and after the inner wall of the fence panel 1 is raised by sliding the sliding part of the baffle 13 in conjunction with the sliding plate 2, the baffle 13 provides protection to the surrounding area while increasing the noise blocking range. When pushing the fence panel 1 to move quickly, the first rotating plate 31 and the second rotating plate 32 can be rotated relative to each other on both sides of the fixed frame 3 via the rotating rod. The first rotating plate 31 and the second rotating plate 32 are fixed by the limiting components located at the limiting holes, so that the baffle 13 is located at the bottom of the inner wall of the fence panel 1. Then, the three sets of pulleys 21 are lower than the bottom surface of the fence panel 1, which can push the fence panel 1 to rotate in conjunction with the three sets of pulleys 21, and the position of the fence panel 1 can be moved quickly. When the fence panel 1 is moved to the erection position, the first rotating plate 31 and the second rotating plate 32 are retracted into the inside of the fixed frame 3. After sliding baffle 13 onto the inner wall of fence panel 1, rotate rotating plate 31 and rotating plate 32 to the sides again. Use the limiting components to raise baffle 13 and fix it, so that the three sets of pulleys 21 are located inside fence panel 1, with the bottom surface of fence panel 1 touching the ground, thus storing the three sets of pulleys 21. When the fence is being erected and the fence panel 1 is being moved quickly, rotating plate 31 and rotating plate 32 can be simultaneously rotated relative to each other on both sides of the fixing frame 3 via rotating rods. The limiting components located at the limiting holes fix rotating plate 31 and rotating plate 32, so that baffle 13 is located at the bottom of the inner wall of fence panel 1. Then, the three sets of pulleys 21 are lower than the bottom surface of fence panel 1, allowing the fence panel 1 to rotate quickly in coordination with the three sets of pulleys 21. Move quickly. Once the fence panel 1 is moved to the erected position, retract the first rotating plate 31 and the second rotating plate 32 into the fixing frame 3. After sliding the baffle 13 up the inner wall of the fence panel 1, rotate the first rotating plate 31 and the second rotating plate 32 to the corresponding sides again. Use the limiting component to raise the baffle 13 and fix it, so that the three sets of pulleys 21 are located inside the fence panel 1, and the bottom surface of the fence panel 1 is in contact with the ground, thus serving to store the three sets of pulleys 21. Use the three sets of first fixing blocks 4 and second fixing blocks 41 to fix them to the surface of the fence panel 1 respectively. When it is necessary to slide the fence panel 1, place the fixing frame 3 parallel to the first fixing block 4 and the second fixing block 41 at the bottom of the surface of the fence panel 1, and rotate the first rotating plate 31 and the second rotating plate 32 respectively.The first rotating plate 31 is inserted into the internal limiting groove of the first fixing block 4, and the second rotating plate 32 is inserted into the internal limiting groove of the second fixing block 41. Finally, the pin 42 is inserted through the limiting holes of the first rotating plate 31 and the second rotating plate 32, and then inserted into the internal limiting grooves of the first fixing block 4 and the second fixing block 41. This serves to extend and move the three sets of pulleys 21. At the same time, when the height of the baffle 13 is raised to limit noise reduction, the fixing bracket 3 is slid up to be parallel to the first fixing block 4 and the second fixing block 41 at the middle or top of the surface of the baffle 1. Then, the first rotating plate 31 and the second rotating plate 32 are fixed inside the internal limiting grooves of the first fixing block 4 and the second fixing block 41. This serves to assist in adjusting the height of the baffle 13 and reducing noise. The storage box 6 is fixed inside the baffle 1. Located above the counterweight of the sliding plate 2, the storage box 6 is filled with expanding foam. When the fence panel 1 is moved and placed on the ground, the counterweight of the sliding plate 2 slides up the inner wall of the fence panel 1 along with the baffle 13. The sliding plate 2 presses and slides against the bottom end of the extruder 61, and the top end of the extruder 61 slides and presses the expanding foam inside the storage box 6. The first elastic element 62 is compressed and subjected to force. The expanding foam is sprayed into the space between the fence panel 1 and the ground through the guide channel 63. As the expanding foam reacts and expands, it fills the gap between the fence panel 1 and the ground, which facilitates the noise absorption effect of placing the fence panel 1 on uneven ground. It is fixed at the corner of the two sets of fence panels 1 using the assembly frame 7. The assembly frame 7 has multiple sets of snap-fit ​​grooves inside, and multiple sets of limit blocks 8 are fixed on both sides of the fence panel 1. Three sets of limiting blocks 8 are slid into the assembly frame 7 along with the fence panel 1. The limiting blocks 8 are positioned above the locking block 81. After the pulley 21 is retracted into the fence panel 1, the fence panel 1 falls to the ground at the lower height. Multiple sets of limiting blocks 8 press down on the locking block 81, and the concave arc-shaped surface at the bottom center of the limiting block 8 fits against the support part of the locking block 81. As the limiting blocks 8 press down on the locking part of the locking block 81, the first limiting protrusion 82 is squeezed back into the locking part of the locking block 81, and the second elastic element 83 contracts under force. When the locking part of the locking block 81 passes through the square groove in the middle of the limiting block 8, the second elastic element 83 squeezes the first limiting protrusion 82 to reset, limiting the limiting blocks 8 on the locking block 81. This serves to limit the multiple sets of limiting blocks 8, facilitating the splicing and assembly of the fence. Two sets of fence panels 1 are spliced ​​together using assembly components. A counterweight 71 is fixed to the bottom of the assembly frame 7 to increase gravity, making the spliced ​​fence panels 1 more stable. The assembly frame 7 is also installed at the corners of the two sets of fence panels 1 to reduce gaps at the corners. Multiple assembly frames 7 and multiple sets of fence panels 1 can be spliced ​​together during fence construction to form a well-sealed fence. Four counterweight frames 9 are symmetrically installed on both sides of the fence panel 1. The combined gravity of the four counterweight frames 9 reinforces and stabilizes the fence panel 1. Insert plates 91 are fixed to the back of the counterweight frames 9. When the counterweight frames 9 are inserted into the slots 93 inside the fence panel 1, the two sets of second-order limiting protrusions 92 are pressed into the insert plates 91 by the inner wall of the fence panel 1.Furthermore, the elastic block is compressed and compressed under force. The slot 93 has holes corresponding to the second limiting protrusion 92. When the insert plate 91 slides along the inner wall of the fence panel 1, causing the two sets of second limiting protrusions 92 to be positioned in the corresponding holes at the slot 93, the two sets of second limiting protrusions 92 are squeezed out by the elastic block and locked into the corresponding holes. Using the insert plate 91 as a support point, it serves to assemble the counterweight frame 9. When disassembling the counterweight frame 9, it can be easily pulled out by force, facilitating disassembly and assembly. When noise is generated during the trenching machine's operation, multiple sets of sound-absorbing holes 11 on the outside of the fence panel 1 connect with the sound-collecting groove 12, blocking the noise from all sides. The noise enters the sound-collecting groove 12 of the fence panel 1 through the multiple sets of sound-absorbing holes 11. When the noise enters the interior of the fence panel 1 from the sound-absorbing holes 11, it is first blocked by the first guide plate 51, temporarily retaining some noise on the second guide plate 52. Most of the noise... The sound will be guided along the inner wall of the second guide plate 52 to the sound-absorbing groove of the sound-absorbing plate 5. The sound-absorbing plate 5 absorbs noise, improving the noise reduction effect. Some noise will temporarily remain on the second guide plate 52, passing through multiple sound-permeable holes inside the fence plate 1, further enhancing the noise absorption effect of the fence plate 1. Noise accumulated inside the fence plate 1 is absorbed by the sound-insulating cotton. Some noise will penetrate upwards through the opening of the sound-collecting groove 12, then rush to the inner wall of the curved plate 14. The curved shape of the curved plate 14 forms a turning point, causing the noise to temporarily remain on the inner wall of the curved plate 14. Ultimately, most of the noise is absorbed by the sound-absorbing cotton 15 at the curved plate 14, thereby reducing noise pollution caused by the trenching machine construction noise to residential areas. Some noise will be guided along the curved inner wall of the counterweight frame 9, leading the noise into the sound-absorbing hole 11, thus providing auxiliary noise reduction.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protective fence for trenching machine construction, characterized in that: The enclosure includes a fence panel (1); the fence panel (1) has multiple sets of sound-absorbing holes (11) on its exterior; the fence panel (1) has a sound-collecting groove (12) inside, and the multiple sets of sound-absorbing holes (11) are connected to the sound-collecting groove (12); the fence panel (1) is equipped with sound-insulating cotton inside, and the sound-insulating cotton is adhered to the sound-collecting groove (12); a baffle (13) is slidably connected to the inner wall of the fence panel (1); an arc-shaped plate (14) is fixed to the top of the baffle (13); the inner wall of the arc-shaped plate (14) is curved; and sound-absorbing cotton (15) is fixed to the inner wall of the arc-shaped plate (14). The bottom end of the baffle (13) is fixedly connected to a sliding plate (2), and the sliding plate (2) is provided in three sets; the three sets of sliding plates (2) are composed of a sliding part and a counterweight part; the sliding part of the three sets of sliding plates (2) slides on the inner wall of the fence plate (1), and the counterweight part of the sliding plate (2) is rotatably connected to a pulley (21). The fence panel (1) is internally fixed with a storage box (6), and the storage box (6) is located above the counterweight of the sliding plate (2); the inner wall of the storage box (6) is slidably connected with a squeezer (61); the squeezer (61) is composed of a set of round rods and two sets of square plates, and the two sets of square plates are fixed at both ends of the round rods; one end of a first elastic element (62) is fixed to the inner wall of the storage box (6), and the other end of the first elastic element (62) is fixed to the top square plate of the squeezer (61); the fence panel (1) is internally provided with a flow channel (63), and the flow channel (63) is connected to the storage box (6).

2. The trenching machine construction protective fence according to claim 1, characterized in that: A set of sliding plates (2) are fixedly connected to a fixing frame (3); the inside of the fixing frame (3) is rotatably connected to a first rotating plate (31) and a second rotating plate (32) via a rotating rod; the first rotating plate (31) and the second rotating plate (32) are both provided with limit holes in the middle; the first rotating plate (31) and the second rotating plate (32) are arranged in an alternating manner; the surface of the fence plate (1) is provided with a limit component, which is used to cooperate with the first rotating plate (31) and the second rotating plate (32) to fix the sliding plate (2).

3. The trenching machine construction protective fence according to claim 2, characterized in that: The limiting component includes a first fixing block (4), a second fixing block (41), and a pin (42); the first fixing block (4) and the second fixing block (41) are both fixed to the surface of the fence panel (1), and the first fixing block (4) and the second fixing block (41) are located on both sides of the fixing frame (3); the first fixing block (4) and the second fixing block (41) are respectively provided with limiting grooves corresponding to the first rotating plate (31) and the second rotating plate (32); the pin (42) is inserted into the inside of the first fixing block (4) and the second fixing block (41), and the pin (42) passes through the limiting holes of the first rotating plate (31) and the second rotating plate (32).

4. The trenching machine construction protective fence according to claim 1, characterized in that: The fence panel (1) is internally fixed with a sound-absorbing plate (5), and the sound-absorbing plate (5) is located at the sound collection groove (12); the sound-absorbing plate (5) is internally provided with a sound-absorbing groove; the inner wall of the fence panel (1) is fixed with a first guide plate (51) and a second guide plate (52), and the first guide plate (51) and the second guide plate (52) are fixed with three sets; the three sets of the first guide plate (51) are curved in shape, and the first guide plate (51) is located above the second guide plate (52); the inner wall of the three sets of the second guide plate (52) is provided with multiple sets of sound-permeable holes, and the second guide plate (52) is curved in shape and leads to the interior of the sound-absorbing plate (5).

5. The trenching machine construction protective fence according to claim 1, characterized in that: The side of the fence panel (1) is provided with an assembly frame (7); the bottom of the assembly frame (7) is fixedly connected with a counterweight seat (71); the inside of the assembly frame (7) is provided with a snap-fit ​​groove, and multiple sets of snap-fit ​​grooves are provided; the inside of the assembly frame (7) is provided with an assembly component, which is used for assembling multiple sets of fence panels (1).

6. The trenching machine construction protective fence according to claim 5, characterized in that: The outer sides of the fence panel (1) are fixed with limiting blocks (8), and multiple sets of limiting blocks (8) are fixed; the bottom center of the multiple sets of limiting blocks (8) is concave arc-shaped, and a square groove is opened in the center of the limiting block (8); the assembly component includes a locking block (81), a first limiting protrusion (82) and a second elastic element (83); the locking block (81) is fixed inside the assembly frame (7), and the locking block (81) is located at the locking groove of the assembly frame (7); the locking block (81) is composed of a support part and a locking part; the locking part of the first limiting protrusion (82) is correspondingly set with the square groove of the limiting block (8); the first limiting protrusion (82) is slidably connected to the locking part of the locking block (81); the second elastic element (83) is fixed to the inner wall of the locking part of the locking block (81), and one end of the second elastic element (83) is fixed to the surface of the first limiting protrusion (82).

7. The trenching machine construction protective fence according to claim 1, characterized in that: The surface of the fence panel (1) is fixed with a counterweight frame (9); four sets of the counterweight frame (9) are fixed, and the four sets of counterweight frames (9) are symmetrically arranged in pairs on the surface of the fence panel (1); the inner wall of the counterweight frame (9) is arc-shaped.

8. The trenching machine construction protective fence according to claim 7, characterized in that: The fence panel (1) has a slot (93) inside; the counterweight frame (9) has a plate (91) fixed to its surface, and the plate (91) corresponds to the slot (93); the plate (91) has a second limiting protrusion (92) installed inside by an elastic block, and there are two sets of the second limiting protrusion (92).

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