A plate compactor with dust suppression function

Abstract

The present invention discloses a flat plate rammer with a dust reduction function, which relates to the technical field of flat plate rammers, and includes a rammer plate installed at the bottom of the flat plate rammer, wherein the rammer plate includes a plane portion and a bent portion, and the plane portion and the bent portion are integrally formed; wherein the bottom of the plane portion has a wind receiving inlet for receiving wind, and the bottom of the bent portion has an exhaust outlet for exhausting air to the bottom of the rammer plate, and wind enters from the wind receiving inlet and is discharged from the exhaust outlet, and the exhaust outlet is inclined toward the ground. The flat plate rammer with a dust reduction function realizes a dust reduction function by arranging a wind receiving inlet at the bottom of the rammer plate to reduce compressed air from escaping to the side of the rammer plate, thereby reducing the generation of dust, reducing the impact on operators, and improving the use efficiency of the flat plate rammer; at the same time, the air entering the wind receiving inlet is discharged from the exhaust outlet to offset the air escaping to the side of the rammer plate, thereby reducing dust.

Description

Technical Field

[0001] The invention relates to the technical field of plate compactors, and in particular to a plate compactor with a dust reduction function. Background Art

[0002] Plate compactors are divided into internal combustion and electric vibratory plate compactors. Plate compactors are suitable for compaction work in geological conditions such as sand, gravel, cement, asphalt sand and gravel, lean concrete and clay. They are widely used in road construction, bridge foundations, house construction, dams and reservoirs, farmland waterway compaction construction, and are especially suitable for construction in narrow sites such as indoor floors, courtyards and trenches. They can undertake construction tasks that large and medium-sized compaction machinery cannot complete.

[0003] Due to its many characteristics such as small size, light weight, large compaction energy, high production efficiency, good edge adhesion, simple operation and easy movement, plate compactors are widely used in construction operations.

[0004] The plate compactor in the prior art usually lacks a dust reduction structure, and a large amount of floating dust is generated near the plate compactor during use, thereby endangering the health of the operator.

[0005] Therefore, it is necessary to propose a plate compactor with dust reduction function to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide a plate compactor with a dust reduction function to solve the problem that the plate compactors in the prior art usually lack a dust reduction structure and generate a large amount of floating dust near the plate compactors during use, thereby endangering the health of operators.

[0007] To achieve the above object, the present invention provides the following technical solution: a plate rammer with dust reduction function, comprising a rammer plate installed at the bottom of the plate rammer,

[0008] The tamping plate comprises a plane portion and a bending portion, and the plane portion and the bending portion are integrally formed;

[0009] The bottom of the planar portion has a wind receiving inlet for receiving wind, and the bottom of the bent portion has an exhaust outlet for exhausting wind to the bottom of the ramming plate;

[0010] The tamping plate is lifted and vibrated to compact the ground. The tamping plate lifting and vibration includes a rapid descent process and a rapid ascent process.

[0011] When the ramming plate descends rapidly, the air between the bottom surface of the ramming plate and the ground is compressed, and the compressed air escapes to the side of the ramming plate;

[0012] When the tamping plate rises rapidly, a negative pressure zone is briefly formed between the bottom surface of the tamping plate and the ground, and the air around the tamping plate is quickly sucked into the space between the bottom surface of the tamping plate and the ground;

[0013] As the tamping plate rapidly rises and falls and vibrates, air rapidly enters and exits the area formed between the tamping plate and the ground, forming a fast-flowing wind force that contacts the ground and generates dust;

[0014] Before the ramming plate descends and contacts the ground, the wind compressed by the ramming plate during its descending process enters from the wind receiving inlet, and is discharged from the exhaust outlet after entering from the wind receiving inlet. The exhaust outlet is inclined toward the ground, and the wind discharged from the exhaust outlet blows toward the ground, thereby suppressing the compressed air from escaping to the side of the ramming plate when the ramming plate descends rapidly, thereby reducing dust.

[0015] Preferably, the wind receiving inlet is U-shaped.

[0016] Preferably, the exhaust outlet includes an air outlet hole, and a plurality of the air outlet holes are provided, the plurality of air outlet holes are arranged at equal distances, and the air outlet holes are arranged obliquely.

[0017] Preferably, a long groove is provided inside the bending portion, and the long groove is connected to multiple air outlets at the same time. A gas channel is also provided inside the bending portion, and the gas channel is connected between the long groove and the wind receiving inlet.

[0018] Preferably, the wind force receiving inlet is arranged at an angle, and the upper end of the wind force receiving inlet is inclined toward the gas channel.

[0019] Preferably, a filter assembly is provided at the wind receiving inlet;

[0020] The filter assembly is used to filter out dust particles flowing with the wind from the wind receiving inlet;

[0021] The filter assembly includes a screen.

[0022] Preferably, the sieve is provided with air holes, and a plurality of air holes are provided.

[0023] Preferably, a first spring is fixedly provided on the top of the screen, and the upper end of the first spring is fixedly connected to the upper inner wall of the wind receiving inlet.

[0024] Preferably, a rubber pad is detachably mounted on the bottom of the screen.

[0025] Preferably, the plate compactor further comprises a frame, a vibration box and a battery box, wherein the frame, the vibration box and the battery box are all located above the compactor plate, a lithium battery is placed in the battery box, the lithium battery supplies power to the vibration box, and the vibration box and the battery box are mounted on the surface of the compactor plate;

[0026] A shock-absorbing pad is arranged on the side of the frame, a connecting frame is fixedly arranged on the upper surface of the tamping plate, and one end of the shock-absorbing pad away from the frame is connected to the connecting frame;

[0027] An air bag is arranged in the shock absorbing pad.

[0028] Technical effects and advantages of the present invention:

[0029] 1. The present invention provides a wind receiving inlet at the bottom of the ramming plate to reduce the compressed air from escaping to the side of the ramming plate, thereby realizing the dust reduction function, thereby reducing the generation of dust, reducing the impact on operators, and improving the use efficiency of the flat ramming plate; at the same time, the air entering the wind receiving inlet is discharged from the exhaust outlet to offset the air escaping to the side of the ramming plate, thereby reducing dust;

[0030] 2. The gas flows toward the bending part under the guidance of the inner wall of the wind receiving inlet, enters the interior of the long groove through the gas channel, and then is ejected from the exhaust outlet, achieving the effect of gas guidance and improving the efficiency of dust reduction;

[0031] 3. Set up a filter component to filter out dust particles to prevent dust particles from entering the wind receiving inlet, long trough and other structures to prevent blockage;

[0032] 4. The first spring is arranged to cooperate with the screen. The reset elastic force of the first spring enables the screen to be quickly reset, and the residue attached to the rubber pad is shaken off, which is convenient for subsequent use;

[0033] 5. Set air holes to ensure that enough wind can enter from the wind receiving inlet, thereby reducing the phenomenon of compressed air being discharged around the ramming plate to achieve the purpose of dust suppression;

[0034] 6. An air bag is arranged inside the pad body, and the elastic deformation performance of the shock-absorbing pad is adjusted by the air bag to ensure the stability of the plate compactor. At the same time, the expansion degree of the air bag is adjusted by setting structures such as threaded cylinders and magnetic blocks. The operation is convenient, and there is no need to use structures such as air pumps, which reduces the cost of use and increases the flexibility of the plate compactor.

[0035] 7. In normal use, the elastic deformation performance of the shock-absorbing pad can also be changed by adjusting the expansion degree of the airbag to expand the application range of the shock-absorbing pad;

[0036] 8. By setting up L-shaped plates, U-shaped frames and other structures, the threaded tube is limited, so that the airbag maintains a stable expansion degree and improves the stability of the shock-absorbing pad;

[0037] 9. Due to the repulsion between the magnet and the magnetic block, the airbag always remains in the expanded state, avoiding stacking and the like, improving the efficiency of inflation, while ensuring elastic support for the pad body and improving the stability of the shock-absorbing pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the structure of a plate compactor with dust reduction function according to the present invention.

[0039] Figure 2 It is a schematic diagram of the tamping plate structure of the present invention.

[0040] Figure 3 It is a schematic diagram of the plane portion and wind receiving inlet structure of the present invention.

[0041] Figure 4 It is a schematic diagram of the cross-sectional structure of the tamping plate of the present invention.

[0042] Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure in the middle.

[0043] Figure 6 It is a schematic diagram of the structure of the shock-absorbing pad of the present invention.

[0044] Figure 7 It is a schematic diagram of the cushion structure of the present invention.

[0045] Figure 8 For the present invention Figure 7 Enlarged schematic diagram of the structure at point B in the middle.

[0046] Fig. 9 It is a schematic diagram of the inner cavity and airbag structure of the present invention.

[0047] Fig.10 For the present invention Fig. 9 Enlarged schematic diagram of the structure at point C in the middle.

[0048] In the figure: 1, tamping plate; 2, frame; 3, vibration box; 4, battery box; 5, flat part; 6, bending part; 7, wind receiving inlet; 8, long groove; 9, air outlet; 10, gas channel; 11, screen; 12, air hole; 13, first spring; 14, rubber pad; 15, shock-absorbing pad; 16, pad body; 17, inner cavity; 18, air bag; 19, first circular plate; 20, air cylinder; 21, magnetic block; 22, threaded rod; 23, magnet; 24, threaded cylinder; 25, slot; 26, block; 27, first nut; 28, L-shaped plate; 29, square box; 30, second spring; 31, U-shaped frame; 32, limit slot; 33, second circular plate; 34, connecting rod; 35, second nut. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clarify the technical solutions in the embodiments of the present invention; it is clearly described in detail. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] Embodiment 1, the present invention provides as Figures 1 to 10A flat plate rammer with a dust reduction function is shown, comprising a rammer plate 1 installed at the bottom of the rammer, the rammer also comprising a frame 2, a vibration box 3 and a battery box 4, the frame 2, the vibration box 3 and the battery box 4 are all located above the rammer plate 1, a lithium battery is placed in the battery box 4, the lithium battery supplies power to the vibration box 3, the vibration box 3 and the battery box 4 are both installed on the surface of the rammer plate 1; a shock-absorbing pad 15 is provided on the side of the frame 2, a connecting frame is fixedly provided on the upper surface of the rammer plate 1, and the end of the shock-absorbing pad 15 away from the frame 2 is connected to the connecting frame. The flat plate rammer and its working principle are both existing common technologies and will not be elaborated here.

[0051] The tamping plate 1 includes a plane portion 5 and a bent portion 6, and the plane portion 5 and the bent portion 6 are integrally formed.

[0052] During the use of the flat plate compactor, the tamping plate 1 rises and falls, vibrates, and compacts the ground. The rise and fall vibration of the tamping plate 1 includes a rapid descent process and a rapid ascent process. When the tamping plate 1 descends rapidly, the air between the bottom surface of the tamping plate 1 and the ground is compressed, and the compressed air escapes to the side of the tamping plate 1; when the tamping plate 1 rises rapidly, a negative pressure area is briefly formed between the bottom surface of the tamping plate 1 and the ground, and the air around the tamping plate 1 is quickly sucked between the bottom surface of the tamping plate 1 and the ground. As the tamping plate 1 rises and vibrates rapidly, the air quickly enters and exits the area formed between the tamping plate 1 and the ground, forming a fast-flowing wind force that contacts the ground to generate dust.

[0053] In order to achieve the function of dust reduction, a wind receiving inlet 7 for receiving wind is provided at the bottom of the plane portion 5, and the wind receiving inlet 7 is U-shaped to expand the coverage area, wherein the U-shaped groove faces the bending portion 6; the bottom of the bending portion 6 has an exhaust outlet for exhausting air to the bottom of the ramming plate 1, and the exhaust outlet includes an air outlet 9, and a plurality of air outlet holes 9 are provided, and the plurality of air outlet holes 9 are arranged at equal distances, and the air outlet holes 9 are arranged at an angle.

[0054] In order to achieve the connection between the air outlet 9 and the wind receiving inlet 7, a long groove 8 is arranged inside the bending part 6, and the long groove 8 is connected with multiple air outlet holes 9 at the same time. A gas channel 10 is also arranged inside the bending part 6, and the gas channel 10 is connected between the long groove 8 and the wind receiving inlet 7.

[0055] Since the wind receiving inlet 7 and the exhaust outlet are provided, before the ramming plate 1 descends and contacts the ground, the wind compressed by the descending process of the ramming plate 1 enters from the wind receiving inlet 7. After entering from the wind receiving inlet 7, the wind passes through the gas channel 10 and the long groove 8 and is discharged from the air outlet 9, thereby achieving the effect of wind guidance. Since the compressed air is absorbed into the wind receiving inlet 7, the compressed air is reduced from escaping to the side of the ramming plate 1, thereby realizing the dust reduction function, thereby reducing the generation of dust, reducing the impact on the operator, and improving the use efficiency of the flat rammer.

[0056] Since the exhaust outlet is inclined toward the ground, the wind discharged from the exhaust outlet blows toward the ground, thereby suppressing the compressed air from escaping to the side of the ramming plate 1 when the ramming plate 1 descends rapidly, thereby reducing dust.

[0057] Specifically, the wind receiving inlet 7 is U-shaped, and the U-shaped notch faces the bending portion 6. The compressed air can easily escape from a position close to the bending portion 6, but the wind discharged from the exhaust outlet is close to the bending portion 6, thereby achieving a dust reduction effect.

[0058] In addition, the exhaust outlet can be parallel to the ground or tilted upward to reduce the contact with the compressed air when the ramming plate 1 drops rapidly, increase the gas circulation rate, and adjust the inclination angle of the exhaust outlet according to specific usage requirements. However, the existing exhaust outlet is tilted toward the ground, which can blow the wind discharged from the exhaust outlet toward the ground, thereby suppressing the compressed air from escaping to the side of the ramming plate 1 when the ramming plate 1 drops rapidly, and the dust suppression effect is the best.

[0059] In order to achieve the effect of guiding the wind force, the wind force receiving inlet 7 is arranged at an angle, and the upper end of the wind force receiving inlet 7 is inclined toward the gas channel 10 .

[0060] Specifically, the gas flows toward the bending portion 6 under the guidance of the inner wall of the wind receiving inlet 7, enters the interior of the long groove 8 through the gas channel 10, and is then ejected from the exhaust outlet, thereby achieving the effect of gas guidance and improving the efficiency of dust reduction.

[0061] In order to prevent dust particles on the ground from clogging the wind receiving inlet 7 and other locations, a filter component is provided at the wind receiving inlet 7. The filter component is used to filter out dust particles flowing with the wind from the wind receiving inlet 7. The filter component includes a screen 11. The screen 11 is made of a strong steel mesh material and is slidably arranged inside the wind receiving inlet 7.

[0062] A first spring 13 is fixedly arranged on the top of the screen 11 , and the upper end of the first spring 13 is fixedly connected to the upper inner wall of the wind receiving inlet 7 . A plurality of first springs 13 are arranged.

[0063] Specifically, before the ramming plate 1 descends and contacts the ground, the wind force compressed by the ramming plate 1 during its descending process enters from the wind receiving inlet 7, and the provided screen 11 filters out dust particles to prevent dust particles from entering the interior of the wind receiving inlet 7, the long slot 8 and other structures to prevent blockage.

[0064] When the wind receiving inlet 7 corresponds to the protruding position on the ground, the protruding position will squeeze the screen 11 to be recovered to the inside of the wind receiving inlet 7, and the first spring 13 will perform force unloading and buffering to extend the service life; at the same time, when the ramming plate 1 rises rapidly, the ramming plate 1 is separated from the ground, and the reset elastic force of the first spring 13 makes the screen 11 reset quickly, shaking off the residue attached to the rubber pad 14, which is convenient for subsequent use.

[0065] The structure of the rubber pad 14 is consistent with that of the screen 11, and has meshes, which does not affect the gas flow.

[0066] In order to reduce the wear of the screen 11 and extend its service life, a rubber pad 14 is detachably mounted on the bottom of the screen 11 .

[0067] First, when the plate compactor is used for indoor operations, the rubber pad 14 can be installed on the bottom of the screen 11 by gluing, and the use environment temperature is suitable, and the bonding force will not decrease due to excessive temperature, and no additional fasteners are required, which is convenient to operate;

[0068] Second, when the plate compactor is used for outdoor operations, the rubber pad 14 can be installed on the bottom of the screen 11 by screw fixation, is resistant to high temperatures, and has high connection strength and stability.

[0069] Therefore, the specific connection method of the rubber pad 14 can be customized according to the construction scenario.

[0070] In Example 2, the sieve 11 is provided with a plurality of air holes 12 , and the inner diameter of the air holes 12 is greater than the inner diameter of the mesh of the sieve 11 .

[0071] The air holes 12 are provided to ensure that enough wind can enter from the wind receiving inlet 7, thereby reducing the phenomenon of compressed air being discharged around the tamping plate 1, thereby achieving the purpose of dust suppression.

[0072] Although the air flow rate is increased due to the provision of the air holes 12, the amount of dust particles entering the wind receiving inlet 7 is also increased, so it can be selected according to actual needs.

[0073] The rubber pad 14 is provided with a through groove which is consistent with the structure of the air hole 12 and communicates with it, so as not to affect the gas flow.

[0074] During the use of the plate compactor, the shock-absorbing pad 15 effectively buffers and reduces vibrations through its compressibility and elastic properties, providing a smooth operating experience for the plate compactor. However, when used under low temperature conditions, the shock-absorbing pad 15 is prone to hardening and loses its original vibration isolation effect. When used under high temperature conditions, the shock-absorbing pad 15 is prone to softening, resulting in its inability to continue to effectively play a shock-absorbing role. In order to ensure the performance of the shock-absorbing pad 15, an airbag 18 is provided in the shock-absorbing pad 15.

[0075] The shock-absorbing pad 15 includes a pad body 16, which is made of rubber material. An inner cavity 17 is provided inside the pad body 16, and an airbag 18 is arranged inside the inner cavity 17. When used under low temperature conditions, the airbag 18 shrinks and becomes smaller, releasing the elastic support for the shock-absorbing pad 15, so that the original vibration isolation effect is maintained; when used under high temperature conditions, the airbag 18 expands and becomes larger, elastically supporting the shock-absorbing pad 15, so that the original vibration isolation effect is maintained.

[0076] An air bag 18 is arranged inside the pad body 16, and the elastic deformation performance of the shock-absorbing pad 15 is adjusted by the air bag 18 to ensure the stability of the plate compactor during use.

[0077] In order to control the expansion of the airbag 18, a first circular plate 19 is fixedly provided at one end of the cushion body 16, a circular groove is provided inside the first circular plate 19, and an air cylinder 20 is fixedly connected inside the circular groove. The air cylinder 20 includes a circular section and a rectangular section, wherein the circular section extends to the outside of the cushion body 16, the rectangular section is connected to the airbag 18, and a magnetic block 21 is slidably provided inside the rectangular section, the magnetic block 21 can only slide inside the rectangular section but cannot rotate, and the expansion degree of the airbag 18 is adjusted by controlling the magnetic block 21 to slide inside the rectangular section of the air cylinder 20.

[0078] A threaded barrel 24 is rotatably connected inside the circular section of the pad body 16 , a threaded rod 22 is threadedly connected inside the threaded barrel 24 , and the magnetic block 21 is rotatably connected to the threaded rod 22 .

[0079] When used under conditions of relatively low temperature, the threaded barrel 24 is rotated. Since the threaded rod 22 is threadedly connected to the threaded barrel 24 and the limiting action of the magnetic block 21 and the rectangular section of the air cylinder 20, the threaded rod 22 moves in the threaded barrel 24 in a direction away from the air bag 18, driving the magnetic block 21 to move in the direction of the threaded barrel 24 inside the air cylinder 20, causing the air bag 18 to shrink and become smaller, releasing the elastic support for the shock-absorbing pad 15, so that the original vibration isolation effect is guaranteed; when used under conditions of relatively high temperature, the threaded barrel 24 is rotated in the opposite direction. Since the threaded rod 22 is threadedly connected to the threaded barrel 24 and the limiting action of the magnetic block 21 and the rectangular section of the air cylinder 20, the threaded rod 22 moves in the threaded barrel 24 in the direction of the air bag 18, driving the magnetic block 21 to move in the direction of the air bag 18 inside the air cylinder 20, and the gas in the air cylinder 20 enters the interior of the air bag 18, causing the air bag 18 to expand and become larger, elastically supporting the shock-absorbing pad 15, so that the original vibration isolation effect is guaranteed.

[0080] By providing structures such as the threaded cylinder 24 and the magnetic block 21, the expansion degree of the airbag 18 is adjusted, which is easy to operate and does not require structures such as an air pump, thereby reducing the cost of use and increasing the flexibility of the flat rammer.

[0081] Furthermore, during normal use, the elastic deformation performance of the shock-absorbing pad 15 can be changed by adjusting the expansion degree of the airbag 18, thereby expanding the applicable scope of the shock-absorbing pad 15.

[0082] One end of the air cylinder 20 located outside the pad body 16 is threadedly connected with a first nut 27, and the shock-absorbing pad 15 is installed by cooperating with the first nut 27 and the air cylinder 20. When the magnetic block 21 moves toward the threaded barrel 24 inside the air cylinder 20, the rotation direction of the threaded barrel 24 is the same as the rotation direction of the first nut 27 for installation and tightening.

[0083] A second circular plate 33 is fixedly arranged at one end of the pad body 16 away from the first circular plate 19, and a connecting rod 34 is fixedly connected to the side of the second circular plate 33 facing away from the first circular plate 19. The connecting rod 34 extends to the outside of the pad body 16, and a second nut 35 is threadedly connected to the connecting rod 34. The other end of the shock-absorbing pad 15 is installed by the cooperation of the second nut 35 and the connecting rod 34. One end of the shock-absorbing pad 15 is installed on the frame 2, and the other end is installed on the ramming plate 1.

[0084] Taking into account that the shock-absorbing pad 15 will vibrate frequently during use, the gas inside the airbag 18 will easily flow back to the inside of the air cylinder 20 due to vibration, extrusion, etc., thereby affecting the expansion degree of the airbag 18. In order to improve the stability of use, an L-shaped plate 28 is provided on the outside of the pad body 16, and a slot 25 is provided at one end of the threaded tube 24 away from the threaded rod 22. The inside of the slot 25 is engaged with a block 26. The slot 25 and the block 26 are triangular, quadrilateral, etc. When the block 26 is inserted into the slot 25, the block 26 will rotate synchronously with the threaded tube 24. The block 26 is fixedly connected to the L-shaped plate 28, a square box 29 is slidably provided on the L-shaped plate 28, a second spring 30 is provided inside the square box 29, one end of the second spring 30 is fixedly connected to the L-shaped plate 28, the other end of the second spring 30 is fixedly connected to the inner wall of the square box 29, one end of the square box 29 away from the L-shaped plate 28 is fixedly connected to a U-shaped frame 31, the first nut 27 is provided with a limiting groove 32 which is snap-fitted with the U-shaped frame 31, and the L-shaped plate 28, the square box 29 and the U-shaped frame 31 are distributed in a U shape.

[0085] Specifically, after the threaded cylinder 24 finishes rotating, the U-shaped frame 31 is aligned with the limiting groove 32 up and down, and the L-shaped plate 28 is pulled in the direction away from the pad body 16, and then the U-shaped frame 31 is inserted into the limiting groove 32, the position of the block 26 corresponds to the position of the groove 25, and the restoring force of the second spring 30 causes the block 26 to be inserted into the interior of the groove 25.

[0086] When the magnetic block 21 moves toward the threaded tube 24 inside the air cylinder 20, the rotation direction of the threaded tube 24 is the same as the rotation direction of the first nut 27 for installation and tightening. When the gas inside the airbag 18 flows back to the inside of the air cylinder 20 due to squeezing, the magnetic block 21 is squeezed to move toward the threaded tube 24 inside the air cylinder 20, and the threaded tube 24 is driven to rotate through the threaded rod 22. However, the first nut 27 abuts against the ramming plate 1 and other structures and cannot rotate. Therefore, the threaded tube 24 is limited, so that the airbag 18 maintains a stable expansion degree, thereby improving the stability of the shock-absorbing pad 15.

[0087] Considering that the shock-absorbing pad 15 is easy to vibrate with the plate compactor, in order to prevent the airbag 18 from stacking after a long time, a magnet 23 is fixedly connected to the end of the airbag 18 away from the air cylinder 20, and the magnet 23 and the magnetic block 21 repel each other. Due to the repulsive cooperation between the magnet 23 and the magnetic block 21, the airbag 18 always remains in the deployed state, avoiding stacking and the like, improving the efficiency of inflation, and at the same time ensuring the elastic support of the pad body 16, improving the stability of the shock-absorbing pad 15.

[0088] Working principle: During the use of the flat plate compactor, the tamping plate 1 moves up and down, vibrates, and compacts the ground. The movement of the tamping plate 1 includes a rapid descent process and a rapid ascent process. When the tamping plate 1 rapidly descends, the air between the bottom surface of the tamping plate 1 and the ground is compressed, and the compressed air escapes to the side of the tamping plate 1; when the tamping plate 1 rapidly rises, a negative pressure zone is briefly formed between the bottom surface of the tamping plate 1 and the ground, and the air around the tamping plate 1 is rapidly sucked into the space between the bottom surface of the tamping plate 1 and the ground. As the tamping plate 1 rapidly moves up and down and vibrates, the air rapidly enters and exits the area formed between the tamping plate 1 and the ground, forming a fast-flowing wind force that contacts the ground to generate dust.

[0089] Since the wind receiving inlet 7 and the exhaust outlet are provided, before the ramming plate 1 descends and contacts the ground, the wind compressed by the descending process of the ramming plate 1 enters from the wind receiving inlet 7. After entering from the wind receiving inlet 7, the wind passes through the gas channel 10 and the long groove 8 and is discharged from the air outlet 9, thereby achieving the effect of wind guidance. Since the compressed air is absorbed into the wind receiving inlet 7, the compressed air is reduced from escaping to the side of the ramming plate 1, thereby realizing the dust reduction function, thereby reducing the generation of dust, reducing the impact on the operator, and improving the use efficiency of the flat rammer.

[0090] Since the exhaust outlet is inclined toward the ground, the wind discharged from the exhaust outlet blows toward the ground, thereby suppressing the compressed air from escaping to the side of the ramming plate 1 when the ramming plate 1 descends rapidly, thereby reducing dust.

[0091] Before the ramming plate 1 descends and contacts the ground, the wind force compressed by the ramming plate 1 during its descending process enters from the wind receiving inlet 7, and the provided screen 11 filters out dust particles to prevent dust particles from entering the interior of the wind receiving inlet 7, the long slot 8 and other structures to prevent blockage.

[0092] During the use of the plate compactor, the shock-absorbing pad 15 effectively buffers and reduces vibrations through its compressibility and elastic properties, providing a smooth operating experience for the plate compactor. However, when used under low temperature conditions, the shock-absorbing pad 15 is prone to hardening and loses its original vibration isolation effect; when used under high temperature conditions, the shock-absorbing pad 15 is prone to softening, resulting in its inability to continue to effectively play a shock-absorbing role.

[0093] Therefore, when used under conditions of relatively low temperature, the threaded barrel 24 is rotated. Since the threaded rod 22 is threadedly connected to the threaded barrel 24, and under the limiting action of the magnetic block 21 and the rectangular section of the air cylinder 20, the threaded rod 22 moves in the threaded barrel 24 in the direction away from the air bag 18, driving the magnetic block 21 to move in the direction of the threaded barrel 24 inside the air cylinder 20, so that the air bag 18 shrinks and becomes smaller, and the elastic support for the shock-absorbing pad 15 is released, so that the original vibration isolation effect is guaranteed; when used under conditions of relatively high temperature, the threaded barrel 24 is rotated in the opposite direction. Since the threaded rod 22 is threadedly connected to the threaded barrel 24, and under the limiting action of the magnetic block 21 and the rectangular section of the air cylinder 20, the threaded rod 22 moves in the threaded barrel 24 in the direction of the air bag 18, driving the magnetic block 21 to move in the direction of the air bag 18 inside the air cylinder 20, and the gas in the air cylinder 20 enters the interior of the air bag 18, so that the air bag 18 expands and becomes larger, elastically supporting the shock-absorbing pad 15, so that the original vibration isolation effect is guaranteed.

[0094] Furthermore, during normal use, the elastic deformation performance of the shock-absorbing pad 15 can also be changed by adjusting the expansion degree of the airbag 18, thereby expanding the application range of the shock-absorbing pad 15.

[0095] After the threaded barrel 24 is rotated, the U-shaped frame 31 is aligned with the limiting groove 32, and the L-shaped plate 28 is pulled away from the pad body 16. Then the U-shaped frame 31 is inserted into the limiting groove 32, and the block 26 corresponds to the position of the slot 25. The reset elastic force of the second spring 30 makes the block 26 inserted into the inside of the slot 25. When the magnetic block 21 moves toward the threaded barrel 24 inside the air cylinder 20, the rotation direction of the threaded barrel 24 is the same as the rotation direction of the first nut 27 for installation and tightening. When the gas inside the air bag 18 flows back to the inside of the air cylinder 20 due to extrusion, the magnetic block 21 is pressed to move toward the threaded barrel 24 inside the air cylinder 20, and the threaded barrel 24 is driven to rotate through the threaded rod 22. However, the first nut 27 abuts against the ramming plate 1 and other structures and cannot rotate. Therefore, the threaded barrel 24 is limited, so that the air bag 18 maintains a stable expansion degree, and the stability of the shock absorbing pad 15 is improved.

Claims

1. A plate compactor with dust suppression function, It comprises a tamping plate (1) installed at the bottom of the plate tamping plate, characterized in that: The tamping plate (1) comprises a plane portion (5) and a bent portion (6), wherein the plane portion (5) and the bent portion (6) are integrally formed; The bottom of the planar portion (5) has a wind receiving inlet (7) for receiving wind, and the bottom of the bent portion (6) has an exhaust outlet for exhausting air toward the bottom of the tamping plate (1); The tamping plate (1) is lifted and vibrated to compact the ground, and the lifting and vibration of the tamping plate (1) includes a rapid descending process and a rapid ascending process; When the tamping plate (1) descends rapidly, the air between the bottom surface of the tamping plate (1) and the ground is compressed, and the compressed air escapes toward the side of the tamping plate (1); When the tamping plate (1) rises rapidly, a negative pressure zone is briefly formed between the bottom surface of the tamping plate (1) and the ground, and the air around the tamping plate (1) is quickly sucked into the space between the bottom surface of the tamping plate (1) and the ground; As the tamping plate (1) rapidly rises and falls and vibrates, air rapidly enters and exits the area formed between the tamping plate (1) and the ground, forming a fast-flowing wind force that contacts the ground and generates dust; Before the ramming plate (1) descends and contacts the ground, wind compressed by the ramming plate (1) during its descent enters from the wind receiving inlet (7), and is discharged from the exhaust outlet after entering from the wind receiving inlet (7). The exhaust outlet is inclined toward the ground, and the wind discharged from the exhaust outlet blows toward the ground, thereby suppressing the compressed air from escaping to the side of the ramming plate (1) when the ramming plate (1) descends rapidly, thereby reducing dust.

2. The plate compactor with dust suppression function according to claim 1, characterized in that: The wind receiving inlet (7) is U-shaped.

3. The plate compactor with dust suppression function according to claim 1, characterized in that: The air outlet comprises an air outlet hole (9), a plurality of the air outlet holes (9) are provided, the plurality of air outlet holes (9) are arranged at equal distances, and the air outlet holes (9) are arranged obliquely.

4. The plate compactor with dust suppression function according to claim 1, characterized in that: The bent portion (6) is provided with a long groove (8) inside, the long groove (8) being connected to a plurality of air outlet holes (9) at the same time, and the bent portion (6) is also provided with a gas passage (10) inside, the gas passage (10) being connected between the long groove (8) and the wind receiving inlet (7).

5. The plate compactor with dust suppression function according to claim 1, characterized in that: The wind force receiving inlet (7) is arranged at an angle, and the upper end of the wind force receiving inlet (7) is inclined toward the gas channel (10).

6. The plate compactor with dust suppression function according to claim 1, characterized in that: A filter assembly is provided at the wind receiving inlet (7); The filter assembly is used to filter out dust particles flowing with the wind from the wind receiving inlet (7); The filter assembly comprises a screen (11).

7. The plate compactor with dust suppression function according to claim 6, characterized in that: The screen (11) is provided with air holes (12), and a plurality of air holes (12) are provided.

8. The plate compactor with dust suppression function according to claim 6, characterized in that: A first spring (13) is fixedly arranged on the top of the screen (11), and the upper end of the first spring (13) is fixedly connected to the upper inner wall of the wind receiving inlet (7).

9. The plate compactor with dust suppression function according to claim 6, characterized in that: A rubber pad (14) is detachably mounted on the bottom of the screen (11).

10. The plate compactor with dust suppression function according to claim 1, characterized in that: The plate compactor further comprises a frame (2), a vibration box (3) and a battery box (4); the frame (2), the vibration box (3) and the battery box (4) are all located above the compactor plate (1); a lithium battery is placed in the battery box (4); the lithium battery supplies power to the vibration box (3); the vibration box (3) and the battery box (4) are mounted on the surface of the compactor plate (1); A shock-absorbing pad (15) is provided on the side of the frame (2), a connecting frame is fixedly provided on the upper surface of the tamping plate (1), and an end of the shock-absorbing pad (15) away from the frame (2) is connected to the connecting frame; An air bag (18) is arranged in the shock-absorbing pad (15).

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