Backfill soil compacting device and compacting method for construction

Abstract

The present invention belongs to the field of compaction technology, and specifically discloses a backfill soil compaction device for construction and a compaction method thereof. The lateral adjustment unit of the device is provided with two extended support plates below the bearing platform, a bidirectional screw and a transverse guide rod are provided in the bearing platform, the first motor drive shaft is connected to the bidirectional screw, the extended support plate is provided with two guide blocks and are respectively connected to the bidirectional screw and the transverse guide rod; the vertical column of the longitudinal adjustment unit is provided below the extended support plate, the longitudinal screw and the longitudinal guide rod are respectively provided in the two columns, the second motor is fixed in the column and the drive shaft is connected to the longitudinal screw, the support blocks in the two columns are sleeved on the longitudinal screw and the longitudinal guide rod, and the two ends of the support sleeve are respectively fixed to the support block and the extended support plate; the compaction block of the compaction unit is connected to the drive end of the drive unit fixed in the center of the bearing platform. The compaction method includes the steps of shifting, expansion matching, height adjustment, and compaction operation. The present invention has the characteristics of simple structure, convenient movement, convenient adjustment, and strong adaptability.

Description

Technical Field

[0001] The present invention belongs to the technical field of compaction, and in particular relates to a backfill soil compacting device for construction use which has a simple structure, is easy to move, convenient to adjust, and has strong adaptability, and a compacting method thereof. Background Art

[0002] Compaction equipment is an impact device used to compact cohesive and non-cohesive soils. It is widely used in highway, railway, construction, water conservancy, and power engineering projects. During the construction of utility poles, it is often necessary to use guy wires to ensure the stability of the installation based on the load. Therefore, after the guy wires and the guy wires are installed in the guy wire pit, the soil should be backfilled promptly. The backfill should be made of dry, impurity-free material and ensured to be dense and uniform. During the backfilling process, tools are used to compact the soil so that the tension provided by the guy wires is transmitted to the utility pole through the guy wires, ensuring the stability and safety of the pole.

[0003] Currently, backfill tamping operations for wire pits and foundation pits are mostly performed manually, requiring workers to use handheld tamping tools. This is not only inefficient but also labor-intensive. Furthermore, existing tamping tools often have fixed span widths and tamping heights, making them difficult to adapt to spanning and tamping operations in wire pits and foundation pits of varying widths and depths. While some tamping tools are adjustable, these require manual adjustment of each support leg, making them difficult to adjust.

[0004] In the prior art, in order to solve the inconvenience caused by manual operation, a bracket is set up, and then the bracket is rotatably connected to a lifting drive screw, the lifting drive screw is threadedly connected to the lifting frame plate, and the lifting drive screw drives the lifting frame plate to be lifted and lowered by its rotation; at the same time, a displacement component is provided on the lifting frame plate, and the displacement component is connected to a tamping component, and the tamping component is driven by the displacement component to move along the length direction of the lifting frame plate; and the tamping component includes a tamping cylinder, the tamping cylinder is slidably connected to a tamping rod, and the lower end of the tamping rod is connected to a tamping plate; and a driving component is provided on the tamping component, and the driving component is used to drive the tamping rod to move along the length direction of the tamping cylinder, thereby effectively improving the efficiency of the backfill tamping operation in the wire pit and reducing the labor intensity of the operators. However, since the spacing between the supports placed outside the wire pit where the bearing platform spans is fixed, and personnel need to move the equipment after completing the compaction work in a certain horizontal area, the size range of the wire pit or foundation pit applicable to the equipment compaction operation is greatly limited and movement is difficult. In order to help the compaction components to lift and lower to complete the compaction of soil layers at various heights, two lifting drive screws are directly assembled on the top of the support, exposed to the outside, and need to be operated and rotated synchronously, resulting in a large overall size of the equipment, troublesome transportation, short service life, and cumbersome operation. For this reason, it is particularly urgent to provide a backfill soil compaction device for construction that can easily adjust the span width and compaction height to adapt to different wire pit or foundation pit sizes and is easy to move. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a backfill compaction device for construction, which has a simple structure, is convenient to move, easy to adjust, and has strong adaptability. The present invention also provides a compaction method for the backfill compaction device for construction.

[0006] The backfill compaction device for construction of the present invention is realized as follows: It includes a carrier platform, a lateral adjustment unit, a longitudinal adjustment unit, a driving unit vertically and fixedly arranged at the center of the carrier platform, a compaction unit, and casters arranged at the bottom of the longitudinal adjustment unit. The interior of the carrier platform is hollow;

[0007] The lateral adjustment unit includes a first motor, a bidirectional screw rod, guide blocks, and a lateral guide rod. Two extended support plates are arranged in parallel below both sides of the carrier platform. A bidirectional screw rod and a lateral guide rod are respectively horizontally and rotatably arranged on both sides of the interior of the carrier platform perpendicular to the length direction of the extended support plates. The first motor is fixedly arranged on the carrier platform and its drive shaft is connected to the bidirectional screw rod. Two guide blocks are arranged at intervals along the length direction on the upper surface of the extended support plate. The two guide blocks of the extended support plate are respectively threadedly connected to the bidirectional screw rod and slidably connected to the lateral guide rod;

[0008] The longitudinal adjustment unit includes a column, a longitudinal screw rod, a support block, a longitudinal guide rod, a support sleeve, and a second motor. The column is a hollow column body and is vertically arranged below the extended support plate. The longitudinal screw rod and the longitudinal guide rod are respectively rotatably arranged in the two columns. The second motor is fixedly arranged in the column below the longitudinal screw rod, and the drive shaft of the second motor is connected to the longitudinal screw rod. The support block is vertically movably arranged in the column. The support blocks in the two columns are respectively sleeved on the longitudinal screw rod in a threaded manner and slidably sleeved on the longitudinal guide rod. The two support sleeves are respectively movably sleeved on the longitudinal screw rod and the longitudinal guide rod in the column. The bottom end of the support sleeve is fixedly connected to the support block, and the top end of the support sleeve extends out of the column and is fixedly connected to the bottom of the extended support plate;

[0009] The compaction unit includes a compaction block. The driving end of the driving unit extends downward, and the top end of the compaction block is connected to the driving end of the driving unit.

[0010] Furthermore, the extended support plate has a straight plate shape, a "C" shape or a "U" shape structure. The extended support plate with a "C" shape or a "U" shape structure is horizontally placed with the opening facing the driving unit.

[0011] Further, the two extension parts of the extended support plate of the "U" - shaped structure extend outwards and are respectively arranged below the bidirectional screw rod and the transverse guide rod. Two said guide blocks are respectively fixedly arranged on the upper surfaces of the two extension parts near the top. The top end of the support sleeve is fixedly connected to the middle of the connecting part connecting the two extension parts of the extended support plate; the two ends of the extended support plate of the "C" - shaped structure extending outwards are respectively arranged below the bidirectional screw rod and the transverse guide rod. Two said guide blocks are respectively fixedly arranged on the upper surfaces of the two ends of the extended support plate extending outwards. The top end of the support sleeve is fixedly connected to the middle of the extended support plate.

[0012] Further, strip - shaped limiting grooves are respectively formed on the bottom wall of the bearing platform below the bidirectional screw rod and the transverse guide rod. The two guide blocks on the extended support plate slide through the strip - shaped limiting grooves and are respectively threadedly connected to the bidirectional screw rod and slidably connected to the transverse guide rod.

[0013] Further, the longitudinal adjustment unit further includes a bottom plate perpendicular to the column. The bottom plate is fixedly arranged at the bottom end of the column and extends towards both sides. Two said casters are respectively arranged at the bottom ends near both ends in the extending direction of the bottom plate. Reinforcement bars are respectively fixedly arranged between both sides of the column and both sides of the bottom plate.

[0014] Further, the ramming unit further includes a storage box, a plug - in strip board, a rectangular frame board, and a locking screw. The storage box is a hollow structure with an open bottom and is connected to the driving end of the driving unit. The ramming block is movably arranged in the storage box. Strip - shaped through - grooves are respectively formed on two opposite side walls of the storage box. A plug - in groove penetrating transversely is arranged on the upper part of the ramming block. The plug - in strip board passes through the plug - in groove and both ends extend outside the strip - shaped through - grooves. The thickness of the plug - in strip board is less than the longitudinal height of the strip - shaped through - groove. Plug - in screw holes are formed on the plug - in strip board and / or the rectangular frame board. The rectangular frame board is movably sleeved on the part of the plug - in strip board extending out of the strip - shaped through - groove. The locking screw passes through the plug - in screw hole to connect the rectangular frame board and the plug - in strip board.

[0015] Further, the plug - in strip board is a "T" - shaped board. The plug - in strip board is inserted into the strip - shaped through - groove on one side of the storage box, penetrates through the plug - in groove, and passes out of the strip - shaped through - groove on the other side. Plug - in screw holes are formed on the outside of the plug - in strip board passing out of the strip - shaped through - groove and / or the rectangular frame board. The rectangular frame board is movably sleeved on the plug - in strip board on the side away from the "T" - shaped head. The locking screw passes through the plug - in screw hole to connect the rectangular frame board and the plug - in strip board.

[0016] Furthermore, the present invention also includes an elastic component, which includes a telescopic column, a shock-absorbing rubber block, and a support spring. Multiple telescopic columns are arranged at intervals in the storage box, and the two ends of the telescopic column are respectively fixedly connected to the top wall of the storage box and the top surface of the shock-absorbing rubber block. The bottom end of the shock-absorbing rubber block is fixedly connected to the top surface of the tamping block. The support spring is mounted on the telescopic column and the two ends are respectively fixedly connected to the top wall of the storage box and the top surface of the shock-absorbing rubber block.

[0017] The compaction method of the backfill soil compaction device for construction of the present invention is implemented as follows: it includes the steps of shifting, expansion matching, height adjustment, and compaction operation. The specific contents of each step are as follows:

[0018] A. Shift: Move the entire device to the vicinity of the cable pit or foundation pit by longitudinally adjusting the casters at the bottom of the unit;

[0019] B. Extension matching: Based on the width of the wire pulling pit or foundation pit, start the first motor to drive the bidirectional screw to rotate in the bearing platform. The two guide blocks threaded on both sides of the bidirectional screw drive the two extension pallets to move relative to each other. At the same time, the guide block on the other side of the extension pallet slides on the transverse guide rod to adjust the spacing between the two extension pallets and drive the two longitudinal adjustment units connected to the bottom of the extension pallet to cross and place it outside the wire pulling pit or foundation pit.

[0020] C. Height adjustment: According to the depth of the wire pit or foundation pit, the second motor is started to drive the longitudinal screw to rotate in the column. The support block connected to the longitudinal screw thread pushes the support sleeve and drives the bearing platform to rise or fall. At the same time, the support sleeve on the corresponding side is driven by the bearing platform to make the support block connected to the lower end slide along the longitudinal guide rod, thereby adjusting the tamping operation height of the bearing platform and the tamping block connected to the drive unit in the wire pit or foundation pit;

[0021] D. Compacting operation: Start the driving unit to drive the compacting block to lift and reciprocate to press the backfill soil in the wire pit or foundation pit, and at the same time move the device by moving the casters until the compaction degree of the backfill soil in the wire pit or foundation pit meets the requirements, and the compacting operation is completed.

[0022] Furthermore, the tamping operation step also includes a positioning and assembly step, wherein the positioning and assembly is to movably place the tamping block in the storage box, and the plug-in strip passes through the tamping block through the plug-in groove and the two ends extend to the outside of the strip groove, and the rectangular frame plate is movably mounted on the plug-in strip outside the storage box, and the locking screw passing through the plug-in screw hole on the rectangular frame plate and / or the plug-in strip is rotated to confine the tamping block in the storage box.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The tamping device of the present invention is equipped with a lateral adjustment unit, which can adjust the lateral distance between the two columns and the casters at their bottom by driving the first motor, so that the two columns and the casters can be placed across to the outside of the wire pits or foundation pits of different widths; and by arranging a longitudinal adjustment unit, the supporting platform and the driving unit and the tamping block thereon can be driven up and down by the second motor, thereby meeting different tamping operation heights in the wire pits or foundation pits; and by arranging casters at the bottom ends of the columns, the position of the tamping block in the wire pits or foundation pits and the movement between different pits can be conveniently adjusted. Therefore, the overall movement is convenient, the adjustment is convenient, the adaptability is strong, and the adjustment process does not require excessive human intervention, which effectively reduces labor intensity.

[0025] 2. The tamping device of the present invention is provided with a lateral adjustment unit, which can control the bidirectional screw to rotate forward and backward in the supporting platform through the operation of the first motor. Two of the guide blocks threadedly connected to the bidirectional screw can be subjected to force to move relative to each other on the outside of the driving unit, so that the two extension support plates fixed at the bottom ends of the two guide blocks can adjust the spacing outside the driving unit, and the other two guide blocks can slide and translate on the transverse guide rod to cooperate with the extension support plates and provide auxiliary support for them. The two columns at the bottom ends of the two extension support plates and the casters at their bottoms are driven to adjust the relative distance from the driving unit, and finally the two columns and casters can be placed across to the outside of the wire pulling pit or foundation pit to complete the adaptive adjustment of the span distance. Not only is the tamping operation size of the wire pulling pit or foundation pit applicable to a wide range, but the span width is also relatively simple to adjust, and no manual operation is required, which effectively reduces labor intensity. In addition, the casters at the bottom of the column can facilitate the adjustment of the placement of the drive unit and the tamping block to change the tamping area, thereby ensuring that the tamping degree of the backfill soil in the entire wire pit or foundation pit meets the requirements, and also facilitate the movement of the tamping device between the wire pits or foundation pits.

[0026] 3. The tamping device of the present invention is provided with a longitudinal adjustment unit, which can control the forward and reverse rotation of the longitudinal screw on the rectangular column through the operation of the second motor. The support block threadedly connected to the longitudinal screw can be forced to rise and fall in the column, so that the support sleeve is driven by the support block to rise and fall along the column to adjust the exposed length of the top, and the support block in the other column slides and rises on the longitudinal guide rod, cooperates with the support sleeve to adjust and provide auxiliary support for it, so that the extended support plate and the bearing platform are driven by the support sleeve to adjust the distance from the ground, and finally achieves the different tamping operation heights of the tamping block connected to the adjustment drive unit in the wire pit or foundation pit, so that the device can adapt to the tamping operation requirements of different depths of backfill soil in the wire pit or foundation pit; and after the operation is completed, the support sleeve can be adjusted back to the inside of the column to lower the overall height of the device, which can not only reduce the overall volume of the device for easy transportation, but also enhance the stability of the device.

[0027] In summary, the present invention has the characteristics of simple structure, convenient movement, convenient adjustment and strong adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the three-dimensional structure of the backfill soil compacting device for construction of the present invention;

[0029] Figure 2 This is a front view of the backfill soil compacting device for construction of the present invention;

[0030] Figure 3 for Figure 2 A top view of

[0031] Figure 4 for Figure 3 AA sectional view;

[0032] Figure 5 for Figure 4 BB cross-sectional view;

[0033] Figure 6 for Figure 4 CC view;

[0034] In the figure: 1-bearing platform, 11-strip limiting groove, 2-lateral adjustment unit, 21-first motor, 22-bidirectional screw, 23-guide block, 24-lateral guide rod, 25-extension support plate, 3-longitudinal adjustment unit, 31-column, 32-longitudinal screw, 33-support block, 34-longitudinal guide rod, 35-support sleeve, 36-bottom plate, 37-second motor, 4-drive unit, 5-tamping unit, 51-storage box, 52-tamping block, 53-plug-in strip plate, 54-rectangular frame plate, 55-locking screw, 56-strip through groove, 6-elastic component, 61-telescopic column, 62-shock-absorbing rubber block, 63-support spring, 7-reinforcement rod, 8-castor. DETAILED DESCRIPTION

[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments, but the present invention is not limited in any way. Any changes or improvements made based on the teachings of the present invention fall within the scope of protection of the present invention.

[0036] like Figures 1 to 6 As shown, the backfill soil compacting device for construction of the present invention includes a bearing platform 1, a lateral adjustment unit 2, a longitudinal adjustment unit 3, a driving unit 4 vertically fixed at the center of the bearing platform 1, a compacting unit 5, and a caster 8 provided at the bottom end of the longitudinal adjustment unit 3. The bearing platform 1 is hollow inside.

[0037] The lateral adjustment unit 2 includes a first motor 21, a bidirectional screw rod 22, guide blocks 23, and a lateral guide rod 24. Two extension support plates 25 are arranged in parallel below both sides of the carrier table 1. Inside the carrier table 1, a bidirectional screw rod 22 and a lateral guide rod 24 are horizontally rotatably arranged on both sides perpendicular to the length direction of the extension support plate 25 respectively. The first motor 21 is fixedly arranged on the carrier table 1 and its drive shaft is connected to the bidirectional screw rod 22. On the upper surface of the extension support plate 25, two guide blocks 23 are arranged at intervals along the length direction. The two guide blocks 23 of the extension support plate 25 are respectively threadedly connected to the bidirectional screw rod 22 and slidably connected to the lateral guide rod 24;

[0038] The longitudinal adjustment unit 3 includes columns 31, longitudinal screw rods 32, support blocks 33, longitudinal guide rods 34, support sleeves 35, and a second motor 37. The column 31 is a hollow column body and is vertically arranged below the extension support plate 25. The longitudinal screw rod 32 and the longitudinal guide rod 34 are respectively rotatably arranged inside the two columns 31. The second motor 37 is fixedly arranged inside the column 31 below the longitudinal screw rod 32, and the drive shaft of the second motor 37 is connected to the longitudinal screw rod 32. The support block 33 is vertically movably arranged inside the column 31. The support blocks 33 inside the two columns 31 are respectively sleeved on the longitudinal screw rod 32 in a threaded manner and slidably sleeved on the longitudinal guide rod 34. The two support sleeves 35 are respectively movably sleeved on the longitudinal screw rod 32 and the longitudinal guide rod 34 inside the column 31. The bottom end of the support sleeve 35 is fixedly connected to the support block 33, and the top end of the support sleeve 35 extends out of the column 31 and is fixedly connected to the bottom of the extension support plate 25;

[0039] The ramming unit 5 includes a ramming block 52. The driving end of the driving unit 4 extends downward, and the top end of the ramming block 52 is connected to the driving end of the driving unit 4.

[0040] The extension support plate 25 has a straight plate shape, a "C" shape or a "U" shape structure. The extension support plate 25 with a "C" shape or a "U" shape structure is horizontally placed with the opening facing the driving unit 4.

[0041] The driving unit 4 is a cylinder, a hydraulic cylinder, a pneumatic hammer or an eccentric reciprocating mechanism driven by a motor.

[0042] In the present invention, the two guide blocks 23 are respectively fixedly arranged on the upper surface of the straight plate-shaped extension support plate 25 near both ends.

[0043] In the present invention, the two extension parts of the "U" - shaped structure's extension plate 25 extending outwards are respectively disposed below the bidirectional screw rod 22 and the transverse guide rod 24. Two said guide blocks 23 are respectively fixedly arranged on the upper surfaces of the two extension parts near the top. The top end of the support sleeve 35 is fixedly connected to the middle of the connecting part connecting the two extension parts of the extension plate 25; the two ends of the "C" - shaped structure's extension plate 25 extending outwards are respectively disposed below the bidirectional screw rod 22 and the transverse guide rod 24. Two said guide blocks 23 are respectively fixedly arranged on the upper surfaces of the two ends where the extension plate 25 extends outwards. The top end of the support sleeve 35 is fixedly connected to the middle of the extension plate 25.

[0044] On the bottom wall of the bearing table 1, strip - shaped limiting grooves 11 are respectively formed below the bidirectional screw rod 22 and the transverse guide rod 24. The two guide blocks 23 on the extension plate 25 slide through the strip - shaped limiting grooves 11 and are respectively thread - connected to the bidirectional screw rod 22 and slidably connected to the transverse guide rod 24.

[0045] The longitudinal adjustment unit 3 further includes a bottom plate 36 perpendicular to the column 31. The bottom plate 36 is fixedly arranged at the bottom end of the column 31 and extends towards both sides. Two said casters 8 are respectively arranged at the bottom ends near both ends in the extending direction of the bottom plate 36. Strengthening rods 7 are respectively fixedly arranged between the two sides of the column 31 and the two sides of the bottom plate 36.

[0046] The cross - section of the column 31 is rectangular or circular. The supporting block 33 is a rectangular block or a cylindrical block; the rectangular block can be vertically movably arranged inside the rectangular column 31; the cylindrical block is movably arranged inside the circular column 31. A guide groove extending along the length direction is formed on the inner wall of the circular column 31. A limiting protrusion extending into the guide groove and in sliding fit is fixedly arranged on the outer circumferential surface of the cylindrical block.

[0047] The ramming unit 5 further includes a storage box 51, a plug - in strip plate 53, a rectangular frame plate 54, and a locking screw 55. The storage box 51 is a hollow structure with an open bottom and is connected to the driving end of the driving unit 4. The ramming block 52 is movably arranged inside the storage box 51. Strip - shaped through - grooves 56 are respectively formed on the opposite two side walls of the storage box 51. A plug - in groove penetrating transversely is arranged on the upper part of the ramming block 52. The plug - in strip plate 53 passes through the plug - in groove and both ends extend outside the strip - shaped through - grooves 56. The thickness of the plug - in strip plate 53 is less than the longitudinal height of the strip - shaped through - grooves 56. Plug - in screw holes are formed on the plug - in strip plate 53 and / or the rectangular frame plate 54. The rectangular frame plate 54 is movably sleeved on the part of the plug - in strip plate 53 extending out of the strip - shaped through - grooves 56. The locking screw 55 passes through the plug - in screw hole to connect the rectangular frame plate 54 and the plug - in strip plate 53.

[0048] The plug-in strip 53 is a "T"-shaped plate. The plug-in strip 53 is inserted into and passes through the strip through slot 56 on one side of the storage box 51 and comes out from the strip through slot 56 on the other side. The outside of the strip through slot 56 through which the plug-in strip 53 passes and / or the rectangular frame plate 54 are provided with plug-in screw holes. The rectangular frame plate 54 is movably mounted on the plug-in strip 53 on the side away from the "T"-shaped head, and the locking screw 55 passes through the plug-in screw hole to connect the rectangular frame plate 54 with the plug-in strip 53.

[0049] The present invention also includes an elastic component 6, which includes a telescopic column 61, a shock-absorbing rubber block 62, and a support spring 63. Multiple telescopic columns 61 are arranged at intervals in the storage box 51. The two ends of the telescopic column 61 are respectively fixedly connected to the top wall of the storage box 51 and the top surface of the shock-absorbing rubber block 62. The bottom end of the shock-absorbing rubber block 62 is fixedly connected to the top surface of the tamping block 52. The support spring 63 is sleeved on the telescopic column 61 and the two ends are respectively fixedly connected to the top wall of the storage box 51 and the top surface of the shock-absorbing rubber block 62.

[0050] The compaction method of the backfill soil compaction device for construction of the present invention is based on the aforementioned backfill soil compaction device for construction, and includes the steps of shifting, expanding and matching, height adjustment, and compaction. The specific contents of each step are as follows:

[0051] A. Shift: Move the entire device to the vicinity of the wire drawing pit or foundation pit by longitudinally adjusting the casters 8 at the bottom end of the unit 3;

[0052] B. Expansion matching: According to the width of the wire pulling pit or foundation pit, the first motor 21 is started to drive the bidirectional screw 22 to rotate in the carrier 1. The two guide blocks 23 threadedly connected on both sides of the bidirectional screw 22 drive the two expansion pallets 25 to move relative to each other. At the same time, the guide blocks 23 on the other side of the expansion pallets 25 slide on the transverse guide rods 24, thereby adjusting the distance between the two expansion pallets 25 and driving the two longitudinal adjustment units 3 connected to the bottom of the expansion pallet 25 to cross and place it outside the wire pulling pit or foundation pit;

[0053] C. Height adjustment: According to the depth of the wire drawing pit or foundation pit, the second motor 37 is started to drive the longitudinal screw rod 32 to rotate in the column 31. The support block 33 threadedly connected to the longitudinal screw rod 32 pushes the support sleeve 35 and drives the supporting platform 1 to rise or fall. At the same time, the support sleeve 35 on the corresponding side is driven by the supporting platform 1 to make the support block 33 connected at the lower end slide along the longitudinal guide rod 34, thereby adjusting the tamping operation height of the supporting platform 1 and the tamping block 52 connected to the drive unit 4 in the wire drawing pit or foundation pit;

[0054] D. Compacting operation: Start the driving unit 4 to drive the compacting block 52 to lift and reciprocate to press the backfill soil in the wire pit or foundation pit, and at the same time move the device by moving the casters 8 until the compaction degree of the backfill soil in the wire pit or foundation pit meets the requirements, and the compacting operation is completed.

[0055] The tamping operation step also includes a positioning and assembly step, wherein the tamping block 52 is movably placed in the storage box 51, the plug-in strip 53 passes through the tamping block 52 through the plug-in groove and the two ends extend to the outside of the strip groove 56, and the rectangular frame plate 54 is movably sleeved on the plug-in strip 53 outside the storage box 51, and the locking screw 55 passing through the plug-in screw holes on the rectangular frame plate 54 and / or the plug-in strip 53 is rotated to confine the tamping block 52 in the storage box 51. Example

[0056] like Figures 1 to 6 As shown in FIG, the compaction method of the backfill soil compaction device for construction is as follows:

[0057] S100, by longitudinally adjusting the casters 8 at the bottom end of the unit 3, the entire device is moved to the vicinity of the wire pulling pit or foundation pit.

[0058] S200. According to the width of the wire pulling pit or foundation pit, start the first motor 21 to drive the bidirectional screw rod 22 to rotate forward and reverse in the supporting platform 1. The two guide blocks 23 threadedly connected on both sides of the bidirectional screw rod 22 drive the two extended pallets 25 to move relative to each other. At the same time, the guide block 23 on the other side of the extended pallet 25 slides on the transverse guide rod 24, thereby adjusting the distance between the two extended pallets 25, and driving the two longitudinal adjustment units 3 connected to the bottom of the extended pallet 25 to be placed across to the outside of the wire pulling pit or foundation pit.

[0059] S300. According to the depth of the wire pulling pit or foundation pit, start the second motor 37 to drive the longitudinal screw rod 32 to rotate in the column 31. The support block 33 threadedly connected to the longitudinal screw rod 32 pushes the support sleeve 35 and drives the supporting platform 1 to rise or fall. At the same time, the support sleeve 35 on the corresponding side is driven by the supporting platform 1 to make the support block 33 connected at the lower end slide along the longitudinal guide rod 34, thereby adjusting the tamping operation height of the supporting platform 1 and the tamping block 52 connected to the drive unit 4 in the wire pulling pit or foundation pit.

[0060] S400, place the tamping block 52 movably in the storage box 51, and make the top surface of the tamping block 52 abut against the elastic component 6, then insert the "T"-shaped plug-in strip 53 from the strip groove 56 on one side of the storage box 51, and pass through the tamping block 52 through the plug-in groove and extend the other end to the outside of the strip groove 56 on the other side, then movably put the rectangular frame plate 54 on the plug-in strip 53 outside the storage box 51, rotate the locking screw 55 that passes through the plug-in screw holes on the rectangular frame plate 54 and / or the plug-in strip 53 to confine the tamping block 52 in the storage box 51.

[0061] S500, start the drive unit 4 to drive the tamping block 52 to rise and fall back and forth to press the backfill soil in the wire pit or foundation pit. The plug-in strip 53 rises and falls in the strip-shaped through-slot 56 on the outer wall of the storage box 51, so that the tamping block 52 rises and falls in the storage box 51 to compact the backfill soil. During the compaction process, the support spring 63 and the shock-absorbing rubber block 62 of the elastic component 6 can add a downward elastic force to the tamping block 52, thereby increasing the compaction strength; and after the tamping block 52 contacts the ground, the telescopic column 61 and the support spring 63 are pressed and contracted to cushion the impact force transmitted from the tamping block 52 to the storage box 51. At the same time, the shock-absorbing rubber block 62 fixed at the bottom end of the telescopic column 61 and fixedly connected to the tamping block 52 further cushions the impact force, thereby effectively reducing the impact force of the tamping block 52 on the device and increasing the service life of the device. During the compaction process, since the bottom is supported by casters 8, the compaction area can be changed by adjusting the placement position of the pushing device in the wire pit or foundation pit until the compaction degree of the backfill soil in the wire pit or foundation pit meets the requirements and the compaction operation is completed.

[0062] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A backfill soil compacting device for construction, characterized in that: It includes a carrier table (1), a lateral adjustment unit (2), a longitudinal adjustment unit (3), a driving unit (4) vertically and fixedly arranged at the center of the carrier table (1), a ramming unit (5), and casters (8) arranged at the bottom end of the longitudinal adjustment unit (3). The interior of the carrier table (1) is hollow; The lateral adjustment unit (2) includes a first motor (21), a bidirectional screw rod (22), guide blocks (23), and a lateral guide rod (24). Two extension support plates (25) are arranged in parallel below both sides of the carrier table (1). A bidirectional screw rod (22) and a lateral guide rod (24) are respectively horizontally and rotatably arranged on both sides of the carrier table (1) perpendicular to the length direction of the extension support plate (25). The first motor (21) is fixedly arranged on the carrier table (1) and its drive shaft is connected to the bidirectional screw rod (22). Two guide blocks (23) are arranged at intervals along the length direction on the upper surface of the extension support plate (25). The two guide blocks (23) on the extension support plate (25) are respectively threadedly connected to the bidirectional screw rod (22) and slidably connected to the lateral guide rod (24); The longitudinal adjustment unit (3) includes columns (31), a longitudinal screw rod (32), a support block (33), a longitudinal guide rod (34), support sleeves (35), and a second motor (37). The column (31) is a hollow column and is vertically arranged below the extension support plate (25). The longitudinal screw rod (32) and the longitudinal guide rod (34) are respectively rotatably arranged in the two columns (31). The second motor (37) is fixedly arranged in the column (31) below the longitudinal screw rod (32), and the drive shaft of the second motor (37) is connected to the longitudinal screw rod (32). The support block (33) is vertically movably arranged in the column (31). The support blocks (33) in the two columns (31) are respectively sleeved on the longitudinal screw rod (32) in a threaded connection and slidably sleeved on the longitudinal guide rod (34). The two support sleeves (35) are respectively movably sleeved on the longitudinal screw rod (32) and the longitudinal guide rod (34) in the column (31). The bottom end of the support sleeve (35) is fixedly connected to the support block (33), and the top end of the support sleeve (35) extends out of the column (31) and is fixedly connected to the bottom of the extension support plate (25); The ramming unit (5) includes a ramming block (52). The driving end of the driving unit (4) extends downward, and the top end of the ramming block (52) is connected to the driving end of the driving unit (4).

2. The backfill soil compacting device for construction according to claim 1, characterized in that: The extension support plate (2) is in a straight plate shape, "C" shape or "U" shape structure. The extension support plate (25) with a "C" shape or "U" shape structure is horizontally placed with the opening facing the driving unit (4).

3. The backfill soil compacting device for construction according to claim 2, characterized in that: The two extending parts of the "U"-shaped extended support plate (25) extending outwards are respectively arranged below the bidirectional screw rod (22) and the transverse guide rod (24). Two of the guide blocks (23) are respectively fixedly arranged on the upper surfaces of the two extending parts near the top ends. The top end of the support sleeve (35) is fixedly connected to the middle of the connecting part connecting the two extending parts of the extended support plate (25); the two ends of the "C"-shaped extended support plate (25) extending outwards are respectively arranged below the bidirectional screw rod (22) and the transverse guide rod (24). Two of the guide blocks (23) are respectively fixedly arranged on the upper surfaces of the two ends where the extended support plate (25) extends outwards. The top end of the support sleeve (35) is fixedly connected to the middle of the extended support plate (25).

4. The backfill soil compacting device for construction according to claim 1, characterized in that: Strip-shaped limiting grooves (11) are respectively formed in the bottom wall of the bearing platform (1) below the bidirectional screw rod (22) and the transverse guide rod (24). The two guide blocks (23) on the extended support plate (25) slide through the strip-shaped limiting grooves (11) and are respectively threadedly connected to the bidirectional screw rod (22) and slidably connected to the transverse guide rod (24).

5. The backfill soil compacting device for construction according to claim 1, characterized in that: The longitudinal adjustment unit (3) further includes a bottom plate (36) perpendicular to the column (31). The bottom plate (36) is fixedly arranged at the bottom end of the column (31) and extends towards both sides. Two of the casters (8) are respectively arranged at the bottom ends of the two ends near the extending direction of the bottom plate (36). Reinforcing rods (7) are respectively fixedly arranged between the two sides of the column (31) and the two sides of the bottom plate (36).

6. The backfill soil compacting device for construction according to any one of claims 1 to 5, characterized in that: The ramming unit (5) further includes a storage box (51), a plug-in strip plate (53), a rectangular frame plate (54), and a locking screw (55). The storage box (51) is a hollow structure with an open bottom and is connected to the driving end of the driving unit (4). The ramming block (52) is movably arranged in the storage box (51). Strip-shaped through grooves (56) are respectively formed in the opposite side walls of the storage box (51). A horizontally penetrating plug-in groove is formed in the upper part of the ramming block (52). The plug-in strip plate (53) passes through the plug-in groove and both ends extend outside the strip-shaped through grooves (56). The thickness of the plug-in strip plate (53) is less than the longitudinal height of the strip-shaped through grooves (56). Plug-in screw holes are formed in the plug-in strip plate (53) and / or the rectangular frame plate (54). The rectangular frame plate (54) is movably sleeved on the part of the plug-in strip plate (53) extending out of the strip-shaped through grooves (56). The locking screw (55) passes through the plug-in screw hole to connect the rectangular frame plate (54) and the plug-in strip plate (53).

7. The backfill soil compacting device for construction according to claim 6, characterized in that: The plug-in strip plate (53) is a "T"-shaped plate. The plug-in strip plate (53) is inserted into the strip-shaped through groove (56) on one side of the storage box (51), passes through the plug-in groove, and passes out of the strip-shaped through groove (56) on the other side. Plug-in screw holes are formed in the outside of the plug-in strip plate (53) passing out of the strip-shaped through grooves (56) and / or the rectangular frame plate (54). The rectangular frame plate (54) is movably sleeved on the plug-in strip plate (53) on the side away from the "T"-shaped head. The locking screw (55) passes through the plug-in screw hole to connect the rectangular frame plate (54) and the plug-in strip plate (53).

8. The backfill soil compacting device for construction according to claim 6, characterized in that: The invention also includes an elastic component (6), wherein the elastic component (6) includes a telescopic column (61), a shock-absorbing rubber block (62), and a support spring (63). A plurality of telescopic columns (61) are arranged at intervals in the storage box (51), and the two ends of the telescopic columns (61) are respectively fixedly connected to the top wall of the storage box (51) and the top surface of the shock-absorbing rubber block (62). The bottom end of the shock-absorbing rubber block (62) is fixedly connected to the top surface of the tamping block (52). The support spring (63) is sleeved on the telescopic column (61) and the two ends of the telescopic columns are respectively fixedly connected to the top wall of the storage box (51) and the top surface of the shock-absorbing rubber block (62).

9. A compaction method based on the backfill soil compaction device for construction according to claim 6, 7 or 8, characterized in that: It includes the steps of shifting, expansion matching, height adjustment, and compaction. The specific contents of each step are as follows: A. Shift: Use the casters (8) at the bottom of the longitudinal adjustment unit (3) to move the entire device to the vicinity of the wire pit or foundation pit; B. Extension matching: according to the width of the wire pulling pit or foundation pit, the first motor (21) is started to drive the bidirectional screw (22) to rotate in the carrier (1), and the two guide blocks (23) threadedly connected on both sides of the bidirectional screw (22) drive the two extension support plates (25) to move relative to each other, and at the same time, the guide block (23) on the other side of the extension support plate (25) slides on the transverse guide rod (24), thereby adjusting the distance between the two extension support plates (25), and driving the two longitudinal adjustment units (3) connected to the bottom of the extension support plate (25) to cross and be placed outside the wire pulling pit or foundation pit; C. Height adjustment: according to the depth of the wire pit or foundation pit, the second motor (37) is started to drive the longitudinal screw (32) to rotate in the column (31), and the support block (33) threadedly connected to the longitudinal screw (32) is pushed to push the support sleeve (35) and drive the bearing platform (1) to rise or fall. At the same time, the support sleeve (35) on the corresponding side is driven by the bearing platform (1) to make the support block (33) connected at the lower end slide along the longitudinal guide rod (34), thereby adjusting the tamping operation height of the bearing platform (1) and the tamping block (52) connected to the drive unit (4) in the wire pit or foundation pit; D. Compacting operation: Start the driving unit (4) to drive the compacting block (52) to lift and reciprocate to press the backfill soil in the wire pit or foundation pit, and at the same time move the device by moving the casters (8) until the compaction degree of the backfill soil in the wire pit or foundation pit reaches the required level, thus completing the compacting operation.

10. The compaction method of the backfill soil compaction device for construction according to claim 9, characterized in that: The tamping operation step also includes a positioning and assembly step, wherein the positioning and assembly step is to movably place the tamping block (52) in the storage box (51), the plug-in strip (53) passes through the tamping block (52) through the plug-in slot and the two ends extend to the outside of the strip-shaped through slot (56), and the rectangular frame plate (54) is movably mounted on the plug-in strip (53) outside the storage box (51). The locking screw (55) passing through the plug-in screw hole on the rectangular frame plate (54) and / or the plug-in strip (53) is rotated to confine the tamping block (52) in the storage box (51).

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