Backfill rammer compactor

Abstract

The utility model provides a backfill rammer compactor. The backfill rammer compactor comprises a machine shell and a driving mechanism. A plurality of insertion connection mechanisms are arranged on the periphery of the tamping assembly, a plurality of vertical guide covers are fixedly connected to the outer wall of the machine shell, the insertion connection mechanisms are inserted into the guide covers, the insertion connection mechanisms are slidably connected with the guide covers, and third springs are placed in the guide covers; and the downward pressing mechanism is arranged in the machine shell, the top of the downward pressing mechanism is connected with the driving mechanism, and the bottom of the downward pressing mechanism makes contact with the tamping assembly. The tamping assembly is mounted and dismounted by inserting the inserting mechanism into the guide cover or pulling the inserting mechanism out of the guide cover, so that the tamping assembly is convenient to dismount and mount and convenient to replace or maintain, shielding of the guide cover can be canceled after the tamping assembly is dismounted, and the tamping assembly is convenient to replace or maintain after being dismounted. And the third spring in a placement state in the guide cover can be replaced, and the replacement is convenient.

Description

Technical Field

[0001] The utility model relates to a backfill soil compactor. Background Art

[0002] During the backfill process, if it involves bridge pile foundation construction, a backfill tamping machine is required to compact the backfilled soil, sand, gravel and other materials to improve the bearing capacity and stability of the ground.

[0003] The current traditional backfill soil compacting machine, such as the existing patent document "CN216999643U A bridge pile foundation construction backfill soil compacting device", discloses a bridge pile foundation construction backfill soil compacting device, including a base, a column welded at one end of the center of the outer wall of the top of the base, and a connecting arm welded at the center of the outer wall of one side of the column, a cylinder welded on the outer wall of the other side of the connecting arm away from the column, and a positioning column welded on the outer wall of the column located directly above the connecting arm, and a transmission shaft rod is movably connected to the axis of the positioning column through a bearing. The motor of the utility model drives the cam to rotate in contact with the top plate through the transmission shaft rod, and the top plate pushes the compacting plate to compact the backfill through the compacting rod, and then the spring drives the compacting rod to reset through the limit ring plate, so that the compacting rod can drive the compacting plate to repeatedly compact the backfill under the rotation of the cam, and the moving wheel makes the base easier to move, so as to facilitate compaction of the backfill and improve the convenience of moving the compacting device.

[0004] The above-mentioned prior art drives the cam to rotate and drives the tamping disk to repeatedly tamp the backfill soil. A spring is provided to provide an upward reset force for the tamping disk during repeated downward pressing. During repeated tamping, the spring will be repeatedly compressed and reset and extended. After long-term use, the spring may be damaged, so the spring needs to be replaced regularly. In the above-mentioned prior art, the spring is installed by welding and the spring is installed in a cylinder. There is a lack of a design that is easy to disassemble and replace, which causes a technical problem that the spring is not easy to replace, causing inconvenience to maintenance and replacement. Utility Model Content

[0005] The utility model provides a backfill soil compactor to solve the technical problems that a compaction component is difficult to disassemble, assemble and replace and a spring used for upward reset of the compaction component is difficult to replace.

[0006] The utility model solves the above technical problems through the following technical solutions:

[0007] The utility model provides a backfill soil compactor, comprising a casing and a driving mechanism; further comprising: a compacting assembly, wherein a plurality of plug-in mechanisms are arranged around the compacting assembly, a plurality of vertical guide covers are fixedly connected to the outer wall of the casing, the plug-in mechanisms are inserted into the guide covers, and the plug-in mechanisms are slidably connected to the guide covers, and a third spring is placed in the guide covers; a pressing mechanism, wherein the pressing mechanism is arranged inside the casing, the top of the pressing mechanism is connected to the driving mechanism, and the bottom of the pressing mechanism is in contact with the compacting assembly.

[0008] In the present technical solution, the installation and disassembly of the tamping assembly is achieved by inserting the plug-in mechanism into the guide cover or pulling it out from the guide cover, so that the tamping assembly can be easily disassembled and replaced or maintained. Furthermore, after the tamping assembly is removed, the shielding of the guide cover can be removed, and then after the tamping assembly is removed, the third spring placed in the guide cover can be replaced, and its replacement is convenient. The above-mentioned design that is easy to disassemble and assemble provides convenience for the maintenance of the tamping assembly of the entire machine.

[0009] Preferably, the tamping assembly comprises a tamping disc and a connecting sleeve; the top surface of the tamping disc is fixedly connected to the bottom end of the connecting sleeve, and the connecting sleeve is mounted to the bottom end of the casing.

[0010] In this technical solution, the connecting sleeve is connected to the bottom of the casing to provide a positioning guide for the compaction assembly, ensuring that the compaction assembly can only move along the length direction of the bottom of the casing. When the casing remains in a vertical state, the compaction plate moves vertically to compact the backfill soil.

[0011] Preferably, the driving mechanism includes an eccentric wheel which is rotatably mounted inside the casing and fixedly connected to an electric motor on the outer wall of the casing; the eccentric wheel is fixedly connected to a first pulley which is rotatably mounted on the outer wall of the casing; a second pulley is fixedly connected to the output shaft end of the motor; a transmission belt is wound around the first pulley and the second pulley.

[0012] In the present technical solution, the driving mechanism is used to provide driving force, cooperate with the elastic restoring force of the third spring, realize cyclic downward pressure, and drive the compaction assembly to press down the backfill soil through the downward pressure mechanism for compaction.

[0013] Preferably, the pressing mechanism includes a disc body and a pressure rod fixed to the bottom of the disc body, the top surface of the disc body contacts the bottom of the eccentric wheel, and the bottom end of the pressure rod contacts the top surface of the tamping disc; the disc body is cooperatively connected to the inner wall of the casing.

[0014] In the technical solution, the top and bottom of the pressing mechanism are respectively used to contact the bottom of the eccentric wheel and the pressing mechanism, so as to transmit the downward force of the eccentric wheel.

[0015] Preferably, the eccentric wheel is formed by fixing a disc and an eccentric block, and the disc is coaxially arranged with the first pulley.

[0016] In the present technical solution, the eccentric structure of the eccentric wheel is formed through the design of the disc and the eccentric block, and the pressing mechanism is used to drive the compaction assembly to move downward by driving the eccentric wheel to rotate continuously.

[0017] Preferably, a positioning column is fixedly connected to the inner wall of the bottom of the guide cover, and the bottom end of the third spring is sleeved with the positioning column.

[0018] In the present technical solution, the positioning column is used to position the third spring and provide positioning for the placement of the third spring.

[0019] Preferably, the plug-in mechanism includes a fixing tube fixedly mounted on the connecting sleeve, a matching hole and a groove are respectively provided at both ends of the fixing tube, and the groove is connected to the matching hole, the matching hole is matched with an inserting strip, and one end of the inserting strip is slidably connected to the guide cover.

[0020] In the present technical solution, the plug-in mechanism is used to plug into the guide cover to realize the installation of the compaction assembly and the casing; through the design of the plug-in mechanism, the connection or release of the compaction assembly and the casing can be achieved by inserting or pulling out the plug strip in the guide cover.

[0021] Preferably, a first spring is arranged in the groove, and the first spring is sleeved on the insertion strip, and two ends of the first spring are respectively fixed to the groove wall of the groove and the insertion strip.

[0022] In the technical solution, the first spring is used to limit the position of the insertion strip, so as to keep the insertion strip inserted in the guide cover.

[0023] Preferably, the plug-in mechanism further comprises a blocking rod and a second spring, wherein the blocking rod is cooperatively connected with a recessed hole provided on the side wall of the inserting strip, and a second spring is arranged in the recessed hole, and a blocking hole adapted for the blocking rod is provided on the side wall of the fixing cylinder.

[0024] In the present technical solution, the design of the blocking rod, the blocking hole and the second spring is used to maintain the plug-in mechanism in a pulled-out state after the plug-in mechanism is pulled out from the guide cover, without the need for manual pulling force, thereby providing convenience for the overall use.

[0025] Preferably, a mounting frame is fixedly connected to an outer wall of one side of the casing, and the bottom end of the casing is open; an anti-slip baffle is fixedly connected to the inner wall of the casing.

[0026] In this technical solution, the mounting frame is used for the installation of the whole machine and can be fixed on an external engineering vehicle.

[0027] On the basis of conforming to the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present utility model.

[0028] The positive and progressive effects of the utility model are:

[0029] The backfill soil compactor proposed above can install and disassemble the compacting assembly by inserting the compacting assembly into or pulling it out from the guide cover through the plug-in mechanism, so that the compacting assembly can be easily assembled and disassembled, and the compacting assembly can be conveniently replaced or maintained. Furthermore, after the compacting assembly is removed, the shielding of the guide cover can be removed, and then after the compacting assembly is removed, the third spring placed in the guide cover can be replaced, and the replacement is convenient. The above-mentioned design that is easy to disassemble and assemble provides convenience for the maintenance of the compacting assembly of the whole machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall back structure of the utility model.

[0031] Figure 2 It is a schematic structural diagram of the overall front side of the utility model.

[0032] Figure 3 It is a schematic diagram of the drive mechanism and the structure inside the casing of the utility model.

[0033] Figure 4 For this utility model Figure 3 Schematic diagram of the structure with the A part in the middle enlarged.

[0034] Figure 5 It is a structural schematic diagram of the plug-in mechanism and the guide cover of the utility model.

[0035] Figure 6 It is a structural schematic diagram of the utility model when the insert is in an extended state.

[0036] Figure 7 It is a structural schematic diagram of the utility model in the storage state of the inserts.

[0037] Description of Reference Numerals

[0038] 1. Casing;

[0039] 2. Mounting frame;

[0040] 3. Tamping assembly; 301. Tamping plate; 302. Connecting sleeve;

[0041] 4. plug-in mechanism; 401. fixing cylinder; 4011. blocking hole; 402. inserting strip; 403. first spring; 404. groove; 405. blocking rod; 406. second spring; 407. concave hole;

[0042] 5. Guide cover; 501. Positioning column;

[0043] 6. Driving mechanism; 601. Motor; 602. First pulley; 603. Second pulley; 604. Transmission belt; 605. Disc; 606. Eccentric block;

[0044] 7. Pressing mechanism; 701. Plate; 702. Pressing rod;

[0045] 8. Anti-drop baffle;

[0046] 9. The third spring. DETAILED DESCRIPTION

[0047] The present invention is further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0048] like Figure 1-7 As shown, a backfill soil compactor includes a casing 1 and a driving mechanism 6; it also includes: a compacting assembly 3, wherein a plurality of plug-in mechanisms 4 are arranged around the compacting assembly 3, a plurality of vertical guide covers 5 are fixedly connected to the outer wall of the casing 1, the plug-in mechanisms 4 are inserted into the guide covers 5, and the plug-in mechanisms 4 are slidably connected to the guide covers 5, and a third spring 9 is placed in the guide covers 5; a pressing mechanism 7, wherein the pressing mechanism 7 is arranged inside the casing 1, the top of the pressing mechanism 7 is connected to the driving mechanism 6, and the bottom of the pressing mechanism 7 is in contact with the compacting assembly 3.

[0049] During the specific implementation, the installation and disassembly of the tamping assembly 3 are realized by inserting the guide cover 5 into or pulling it out from the guide cover 5 through the plug-in mechanism 4, so that the tamping assembly 3 is easy to assemble and disassemble, and the tamping assembly 3 is convenient for replacement or maintenance. Furthermore, after the tamping assembly 3 is removed, the shielding of the guide cover 5 can be removed, and then after the tamping assembly 3 is removed, the third spring 9 placed in the guide cover 5 can be replaced, and its replacement is convenient. The above-mentioned design that is easy to disassemble and assemble provides convenience for the maintenance of the tamping assembly 3 of the whole machine.

[0050] like Figure 1-3 As shown, as a specific technical solution, the tamping assembly 3 includes a tamping plate 301 and a connecting sleeve 302; the top surface of the tamping plate 301 is fixedly connected to the bottom end of the connecting sleeve 302, and the connecting sleeve 302 is sleeved to the bottom end of the casing 1.

[0051] The compacting assembly 3 is installed on the bottom of the casing 1 through the connecting sleeve 302. After the installation, the compacting assembly 3 is guided by the positioning, and can only move along the length direction of the bottom of the casing 1. When the casing 1 remains in a vertical state, the compacting plate 301 moves vertically for compacting the backfill soil.

[0052] like Figure 2-3As shown, as a specific technical solution, the driving mechanism 6 includes a motor 601 fixedly mounted on the outer wall of the casing 1 and an eccentric wheel rotatably mounted inside the casing 1, the eccentric wheel is fixedly connected to a first pulley 602, the first pulley 602 is rotatably mounted on the outer wall of the casing 1, the output shaft end of the motor 601 is fixedly connected to a second pulley 603, and a transmission belt 604 is wound around the first pulley 602 and the second pulley 603.

[0053] The driving mechanism 6 is used to provide driving force, cooperate with the elastic restoring force of the third spring 9, realize cyclic pressing, and drive the compaction assembly 3 to press the backfill soil down through the pressing mechanism 7 for compaction; specifically, the second pulley 603 is driven to rotate by the motor 601, and the first pulley 602 is rotated through the transmission belt 604, and the eccentric wheel rotates with the first pulley 602. Figure 3 As shown, it is an eccentric structure. When rotating, the thickest part of the eccentric block 606 contacts the top of the pressing mechanism 7 to provide maximum pressing, and then the eccentric block 606 is continuously rotated to separate from the pressing mechanism 7, so that the disc 605 contacts the pressing mechanism 7 to release the pressing, and then the eccentric wheel is rotated to contact the top of the pressing mechanism 7 again to press down again. Through the above cycle, repeated pressing is achieved to carry out compaction. In the above process, the elastic force of the third spring 9 ensures that the pressing mechanism 7 is always in contact with the eccentric wheel.

[0054] like Figure 3 As shown, as a specific technical solution, the pressing mechanism 7 includes a disk body 701 and a pressure rod 702 fixed to the bottom of the disk body 701, the top surface of the disk body 701 contacts the bottom of the eccentric wheel, and the bottom end of the pressure rod 702 contacts the top surface of the tamping disk 301; the disk body 701 is cooperatively connected to the inner wall of the casing 1.

[0055] The top and bottom of the pressing mechanism 7 are respectively used to contact the bottom of the eccentric wheel and the pressing mechanism 7. When the eccentric wheel presses down on the pressing mechanism 7 and increases the pressing amount, the pressing mechanism 7 presses down the tamping disk 301 downward and compresses the third spring 9 to increase its compression deformation. The eccentric wheel is reset and the pressing amount is reduced. The elastic force of the third spring 9 causes the tamping disk 301 to move upward and pushes the pressing mechanism 7 upward, thereby ensuring reciprocating vertical movement.

[0056] like Figure 3 As shown, as a specific technical solution, the eccentric wheel is formed by fixing a disc 605 and an eccentric block 606 , and the disc 605 is coaxially arranged with the first pulley 602 .

[0057] The design of the disc 605 and the eccentric block 606 forms an eccentric structure of the eccentric wheel, and the pressing mechanism 7 is used to drive the compacting assembly 3 to move downward by driving the eccentric wheel to rotate continuously.

[0058] like Figure 5 As shown, as a specific technical solution, a positioning column 501 is fixedly connected to the inner wall of the bottom of the guide cover 5 , and the bottom end of the third spring 9 is sleeved with the positioning column 501 .

[0059] The positioning column 501 is used to position the third spring 9 and provide a position for the placement of the third spring 9, but the positioning column 501 is not fixed to the third spring 9. When the third spring 9 is taken out of or put into the guide cover 5, the third spring 9 is moved up and down to disengage from or sleeve on the positioning column 501.

[0060] like Figure 1-5 As shown, as a specific technical solution, the plug-in mechanism 4 includes a fixed cylinder 401 fixedly installed on the connecting sleeve 302, and the two ends of the fixed cylinder 401 are respectively provided with a matching hole and a groove 404, and the groove 404 is connected to the matching hole, and the matching hole is matched with a plug-in strip 402, and one end of the plug-in strip 402 is slidably connected to the guide cover 5; a first spring 403 is arranged in the groove 404, and the first spring 403 is sleeved on the plug-in strip 402, and the two ends of the first spring 403 are respectively fixed to the groove wall of the groove 404 and the plug-in strip 402.

[0061] The plug-in mechanism 4 is used to connect the tamping component 3 with the guide cover 5, so as to realize the connection between the tamping component 3 and the casing 1. In the connected state, the tamping component 3 is plugged into the guide cover 5 through the plug-in strip 402. When the tamping component 3 moves up and down, the plug-in strip 402 slides in the guide cover 5 to realize the guiding of the movement; at the same time, it acts as a limit, and the tamping component 3 will not detach from the bottom of the casing 1.

[0062] When disconnecting the plug-in mechanism 4 from the guide cover 5, the plug-in bar 402 can be pulled out of the guide cover 5, and all the connections of the plug-in mechanisms 4 can be disconnected, and the compacting assembly 3 can be pulled down from the bottom of the housing 1 to be taken out. After the compacting assembly 3 is taken out, the shielding of the guide cover 5 is cancelled, and the third spring 9 in the guide cover 5 and the compacting assembly 3 can be replaced.

[0063] After the third spring 9 is replaced and maintained, the installation is achieved by putting the connecting sleeve 302 onto the bottom end of the housing 1 and inserting the inserting strip 402 into the guide cover 5 .

[0064] like Figure 6-7 As shown, as a specific technical solution, the plug-in mechanism 4 also includes a blocking rod 405 and a second spring 406. The blocking rod 405 is connected to a recessed hole 407 provided on the side wall of the insertion strip 402, and a second spring 406 is arranged in the recessed hole 407. A blocking hole 4011 adapted to the blocking rod 405 is provided on the side wall of the fixing cylinder 401.

[0065] Through the design of the blocking rod 405 and the second spring 406, the automatic positioning and blocking of the plug-in mechanism 4 can be performed; Figure 6 As shown, the insert 402 extends from the fixed cylinder 401, that is, it is in a state of being inserted in the guide cover 5, and the second spring 406 therein is in a compressed state. The insert 402 is manually pulled to move the insert 402 into the groove 404, and the first spring 403 is compressed at the same time, and the insert 402 is pulled out of the guide cover 5. After it is completely pulled out, the blocking rod 405 moves with the insert 402, and the blocking rod is aligned with the blocking hole 4011. The blocking rod 405 can be driven to be inserted into the blocking hole 4011 by the elastic force of the second spring 406, so as to realize the positioning of the insert 402 in the storage state. When the end pulling force is manually cancelled, the insert 402 will not be reinserted into the guide cover 5 by the elastic force of the first spring 403, that is, Figure 7 Through the above operation, all the plug-in mechanisms 4 of the plug-in strip 402 are pulled out from the guide cover 5.

[0066] The compacting assembly 3 is re-mounted on the bottom of the housing 1 through the connecting sleeve 302, and the state of the plug-in mechanism 4 is as follows. Figure 7 As shown, an external ejector pin or a thin rod or other tool (a tool that can be inserted into the blocking hole 4011 to push the blocking rod 405 out of the blocking hole 4011) is manually inserted into the blocking hole 4011 to push the blocking rod 405 out of the blocking hole 4011, so that the insertion strip 402 loses its position, and the elastic force of the first spring 403 pushes the insertion strip 402 to move, and the insertion strip 402 is inserted into the guide cover 5 to complete the plug-in connection. Through the above operations, the connection between all the plug-in mechanisms 4 and the guide cover 5 is achieved.

[0067] Through the design of the above-mentioned blocking rod 405, blocking hole 4011 and second spring 406, after the plug-in mechanism 4 is pulled out from the guide cover 5, it is used to maintain the plug-in mechanism 4 in a pulled-out state without manual pulling force, thereby providing convenience for the overall use.

[0068] Among them Figure 5 In the state shown in FIG. 1 , after the inserting strip 402 is inserted into the guide cover 5, the first spring 403 is still in a compressed state. The compression amount is lower than that when the inserting strip 402 is pulled out of the guide cover 5, but the inserting strip 402 still has a certain pressure, pressing the guide cover 5, and providing friction for limiting the position of the inserting strip 402 and the guide cover 5. Further, when the inserting strip 402 is inserted into the guide cover 5, the plug-in mechanism 4 is as shown in FIG. Figure 6 As shown, the second spring 406 is in a compressed state, providing pressure for the lever, so that the lever is pressed against the wall of the groove 404, increasing friction, providing friction limit for the insert 402, increasing the difficulty of separating the insert 402 from the guide cover 5, and preventing separation.

[0069] A mounting frame 2 is fixedly connected to one side outer wall of the casing 1 , and the bottom end of the casing 1 is open; an anti-drop baffle 8 is fixedly connected to the inner wall of the casing 1 .

[0070] The mounting frame 2 is used to connect the casing 1 to an external engineering vehicle or a flatbed truck, and to compact the backfill soil at different positions by moving and changing the position; wherein the backfill soil tamping is used to block the disc 701 to prevent the disc 701 from being separated from the casing 1 after the compaction assembly 3 is removed.

[0071] The utility model is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the utility model. The protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the utility model, but these changes and modifications are within the protection scope of the utility model.

Claims

1. A backfill soil compactor, comprising a housing (1) and a driving mechanism (6); characterized in that: Also includes: A tamping assembly (3), wherein a plurality of plug-in mechanisms (4) are arranged around the tamping assembly (3), a plurality of vertical guide covers (5) are fixedly connected to the outer wall of the housing (1), the plug-in mechanisms (4) are inserted into the guide covers (5), and the plug-in mechanisms (4) are slidably connected to the guide covers (5), and a third spring (9) is placed in the guide covers (5); A pressing mechanism (7) is arranged inside the casing (1), the top of the pressing mechanism (7) is connected to the driving mechanism (6), and the bottom of the pressing mechanism (7) is in contact with the tamping assembly (3).

2. A backfill soil compactor according to claim 1, characterized in that: The tamping assembly (3) comprises a tamping disc (301) and a connecting sleeve (302); the top surface of the tamping disc (301) is fixedly connected to the bottom end of the connecting sleeve (302), and the connecting sleeve (302) is sleeved to the bottom end of the casing (1).

3. A backfill soil compactor according to claim 2, characterized in that: The driving mechanism (6) comprises a motor (601) fixedly mounted on the outer wall of the casing (1), and an eccentric wheel rotatably mounted inside the casing (1); the eccentric wheel is fixedly connected to a first pulley (602); the first pulley (602) is rotatably mounted on the outer wall of the casing (1); the output shaft end of the motor (601) is fixedly connected to a second pulley (603); a transmission belt (604) is wound between the first pulley (602) and the second pulley (603).

4. A backfill soil compactor according to claim 3, characterized in that: The pressing mechanism (7) comprises a disk body (701) and a pressing rod (702) fixed to the bottom of the disk body (701); the top surface of the disk body (701) contacts the bottom of the eccentric wheel, and the bottom end of the pressing rod (702) contacts the top surface of the tamping disk (301); the disk body (701) is cooperatively connected to the inner wall of the casing (1).

5. A backfill soil compactor according to claim 3, characterized in that: The eccentric wheel is formed by fixing a disc (605) and an eccentric block (606), and the disc (605) is coaxially arranged with the first pulley (602).

6. A backfill soil compactor according to claim 1, characterized in that: A positioning column (501) is fixedly connected to the inner wall of the bottom of the guide cover (5), and the bottom end of the third spring (9) is sleeved with the positioning column (501).

7. A backfill soil compactor according to claim 1, characterized in that: The plug-in mechanism (4) comprises a fixing cylinder (401) fixedly mounted on the connecting sleeve (302), a matching hole and a groove (404) are respectively provided at two ends of the fixing cylinder (401), and the groove (404) is communicated with the matching hole, the matching hole is matched with an inserting strip (402), and one end of the inserting strip (402) is slidably connected to the guide cover (5).

8. A backfill soil compactor according to claim 7, characterized in that: A first spring (403) is arranged in the groove (404), and the first spring (403) is sleeved on the inserting strip (402), and two ends of the first spring (403) are respectively fixed to the groove wall of the groove (404) and the inserting strip (402).

9. A backfill soil compactor according to claim 7, characterized in that: The plug-in mechanism (4) further comprises a blocking rod (405) and a second spring (406); the blocking rod (405) is connected in cooperation with a concave hole (407) provided on the side wall of the inserting strip (402), and the second spring (406) is arranged in the concave hole (407); and a blocking hole (4011) adapted to the blocking rod (405) is provided on the side wall of the fixing cylinder (401).

10. The backfill soil compactor according to claim 1, characterized in that: A mounting frame (2) is fixedly connected to an outer wall of one side of the casing (1), and the bottom end of the casing (1) is open; an anti-slip baffle (8) is fixedly connected to the inner wall of the casing (1).

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