Backfill tamping device

Abstract

The utility model belongs to the technical field of constructional engineering equipment, and particularly relates to a backfill tamping device which comprises a walking base, a mounting box, a tamping mechanism and a driving mechanism. The walking base comprises a base and rollers; the mounting box is fixedly mounted on the base; the tamping mechanism comprises a tamping seat, a tamping rod, a coupling plate and a tamping block, the tamping seat is fixedly mounted on the mounting box, the tamping rod is connected with the tamping seat in an up-down sliding fit manner, the coupling plate is fixedly mounted at the top end of the tamping rod, and the tamping block is fixedly mounted at the bottom end of the tamping rod; the driving mechanism comprises a motor assembly and a cam assembly, and the cam assembly is in contact connection with the coupling plate. According to the backfilled soil tamping device, the tamping mechanism and the driving mechanism are arranged on the walking base, the walking base freely walks in a tamping area, the driving mechanism drives the tamping mechanism to tamp backfilled soil, the overall structure is flexible and small, an automatic tamping power source is provided, and the backfilled soil tamping device is particularly suitable for tamping operation in a narrow space and is low in cost.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction engineering equipment, and particularly relates to a backfill compaction device. Background Art

[0002] Backfill refers to the soil that is filled and compacted again after completing the underground works such as the foundation in engineering construction. After the backfill is completed, a rammer is needed to compact the backfill. Backfilling is an indispensable construction process in building construction.

[0003] A Chinese patent with the publication number CN117431923A discloses a backfill compaction device, which includes a compaction tool and an excavator. The compaction tool includes a compaction part and an installation part. The installation part is fixedly installed on the compaction part, and an included angle is formed between the compaction part and the installation part. The installation part is installed at the position of the hydraulic breaker rod of the excavator, and the excavator is used to provide a vibration force for the installation part. By manufacturing the compaction part and the installation part and installing them on the excavator, the integration of the compaction tool and the hydraulic system of the excavator is achieved, and the compaction tool is used to compact the backfill by means of the hydraulic system of the excavator.

[0004] However, the above-mentioned disclosed solution still has the following deficiencies: The above-mentioned compaction device needs to be installed on an excavator for use. In the case of a relatively narrow compaction area (such as a narrow lane), it is not convenient for the excavator to enter the compaction area for use, and the use has certain limitations. Moreover, when the compaction area is relatively small, the cost of using an excavator is relatively high. Summary of the Utility Model

[0005] This application provides a backfill compaction device, aiming to solve at least one of the above problems.

[0006] This application provides a backfill compaction device, which is characterized by including:

[0007] A walking base, including a base, and the lower surface of the base is provided with rollers;

[0008] An installation box, fixedly installed on the base;

[0009] A compaction mechanism, including a compaction seat, a compaction rod, a coupling plate and a compaction block. The compaction seat is fixedly installed on the installation box. The compaction rod is slidably connected with the compaction seat in the up and down direction. The coupling plate is fixedly installed at the top end of the compaction rod. The compaction block is fixedly installed at the bottom end of the compaction rod, and the compaction block is located below the base;

[0010] A driving mechanism, including a motor assembly and a cam assembly. The motor assembly and the cam assembly are in transmission connection. The motor assembly is fixedly installed on the installation box, and the cam assembly is in contact connection with the coupling plate.

[0011] The above-mentioned backfill compaction device is provided with a compaction mechanism and a driving mechanism on a walking base. The walking base is used to freely walk in the compaction area, and the driving mechanism is used to drive the compaction mechanism to compact the backfill. The overall structure is flexible and compact, and it has an automatic compaction power source without the need for an excavator to provide a power source. It is especially suitable for compaction operations in narrow spaces and has a low cost.

[0012] In the technical solution of an embodiment, an elastic member is installed on the compaction rod, and the elastic member is located between the compaction seat and the coupling plate.

[0013] In the technical solution of an embodiment, the coupling plate is an arc-shaped plate.

[0014] In the technical solution of an embodiment, the cam assembly includes a circular wheel body portion and a protruding portion. The wheel body portion and the protruding portion are connected by a connecting screw rod to form a cam structure; the wheel body portion is rotatably installed on the installation box through a pair of rotating shafts.

[0015] In the technical solution of an embodiment, at least one guide rod is further connected between the wheel body portion and the protruding portion.

[0016] In the technical solution of an embodiment, the installation box includes a box body, the box body is fixedly installed on the base, and a push rod is installed on the back of the box body.

[0017] In the technical solution of an embodiment, the top of the box body is open and is equipped with a cover plate.

[0018] In the technical solution of an embodiment, a maintenance opening is provided on the side of the box body and is equipped with a maintenance door.

[0019] In the technical solution of an embodiment, an observation window is installed on the front of the box body.

[0020] The above description is only an overview of the technical solution of the present application. In order to be able to more clearly understand the technical means of the present application, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the following specifically illustrates the specific implementation manners of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings in the present application are used to show the preferred embodiments, which are convenient for those of ordinary skill in the art to clearly understand various other advantages and benefits, and should not be considered as a limitation to the present application. And in all the drawings, the same reference numerals are used to represent the same components.

[0022] Figure 1 It is a schematic diagram of the overall structure of the backfill compaction device in an embodiment of the present application.

[0023] Figure 2Schematic diagram of the internal structure of the backfill compaction device in an embodiment of the present application.

[0024] Figure 3 Schematic diagram of the connection between the driving mechanism and the compaction mechanism in an embodiment of the present application.

[0025] Figure 4 Schematic diagram of the adjustment assembly in an embodiment of the present application.

[0026] Reference numerals:

[0027] 10, traveling base; 11, base; 12, roller;

[0028] 20, installation box; 21, box body; 22, cover plate; 23, observation window; 24, push rod; 25, maintenance door;

[0029] 30, driving mechanism; 31, motor assembly; 32, cam assembly; 321, wheel body part; 322, protruding part; 323, connecting screw; 324, guide rod; 325, rotating shaft;

[0030] 40, compaction mechanism; 41, compaction seat; 42, compaction rod; 43, coupling plate; 44, compaction block; 45, elastic member. Detailed implementation manners

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments in the present application belong to the scope of protection of the present application.

[0032] Reference to "embodiment" in this text means that the specific features, structures or characteristics described in connection with the embodiment can be included in at least one embodiment of the present application. The phrase appears in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0033] In the description of the embodiments of the present application, the meaning of "a plurality" is two or more (including two), unless otherwise specifically defined. Technical terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of the present application.

[0034] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0035] Please refer to Figures 1 - 4An embodiment of the present application provides a backfill soil compacting device, which has a flexible and compact overall structure, an automatic compacting power source, and does not require an excavator to provide a power source, and is particularly suitable for compacting operations in a narrow space. It mainly includes a walking base 10, an installation box 20, a compacting mechanism 40 and a driving mechanism 30. Among them, the walking base 10 includes a base 11, and rollers 12 are installed at the four corners of the lower surface of the base 11; the installation box 20 is fixedly installed on the base 11; the tamping mechanism 40 includes a tamping seat 41, a tamping rod 42, a coupling plate 43 and a tamping block 44, the tamping seat 41 is fixedly installed on the installation box 20, the tamping rod 42 is inserted in the tamping seat 41, the tamping rod 42 and the tamping seat 41 are slidably connected up and down, the coupling plate 43 is fixedly installed on the top of the tamping rod 42 (located in the installation box 20), the tamping block 44 is fixedly installed on the bottom end of the tamping rod 42 (the installation box 20 and the base 11 both have through holes for the tamping rod 42 to pass through), and the tamping block 44 is located below the base 11; the driving mechanism 30 includes a motor assembly 31 and a cam assembly 32, the motor assembly 31 and the cam assembly 32 are transmission connected, the motor assembly 31 is fixedly installed on the installation box 20, and the cam assembly 32 is in contact with the coupling plate 43. When in use, the backfill soil compacting device can be pushed to the target compaction area using the walking base 10, and the motor assembly 31 is started to drive the cam assembly 32 to rotate. The rotation of the cam assembly 32 will intermittently hit the coupling plate 43 downward, and finally the compacting block 44 will reciprocate along the height direction to compact the backfill soil. The backfill soil compacting device provided in this embodiment uses the walking base 10 to move freely in the compaction area, and drives the compaction mechanism 40 to compact the backfill soil through the driving mechanism 30. The overall structure is flexible and compact, and the automatic compaction power source (driving mechanism 30) does not require the excavator to provide a power source. It is particularly suitable for compaction operations in a small space and has low cost.

[0036] It should be noted that the cam assembly 32 and the coupling plate 43 may be in contact all the time, or may be in contact periodically (or intermittently) with the rotation of the cam assembly 32, and only the protruding portion of the cam assembly 32 is in contact with the coupling plate 43. In either case, the above functional requirements can be met.

[0037] In a further embodiment, the tamping rod 42 is configured as a square rod with a rectangular cross section, and is configured to perform vertical reciprocating motion to prevent the tamping block 44 from rotating.

[0038] In some embodiments, the installation box 20 includes a box body 21, which is fixedly mounted on the base 11, and the tamping mechanism 40 and the driving mechanism 30 are both located in the box body 21. The box body structure can protect the internal structure and prevent dust and water.

[0039] It should be noted that the installation box 20 here mainly plays the role of fixing the tamping mechanism 40 and the driving mechanism 30. A fixed bracket is also feasible. The selection of the box body 21 is only a preferred option.

[0040] In a further embodiment, a push rod 24 may be installed on the back of the box body 21 to facilitate on-site construction workers to hold and push the backfill soil compaction device to a designated location.

[0041] In a further embodiment, an inspection port may be opened on the side of the box body 21 and provided with an inspection door 25 to facilitate inspection of the internal compacting mechanism 40 and driving mechanism 30 .

[0042] In a further embodiment, an observation window 23 may be installed on the front side of the box body 21 to facilitate observation of the operation of the compacting mechanism 40 and the driving mechanism 30 inside the box body 21 .

[0043] In some embodiments, an elastic member 45 is installed on the tamping rod 42 , and the elastic member 45 is located between the tamping seat 41 and the coupling plate 43 .

[0044] It is understandable that the elastic member 45 can be a spring, a torsion spring, a spring sheet, etc., as long as it can play a returning role, it is applicable, and no one is listed here. Specifically, the preferred embodiment in the figure adopts a spring, and the spring is more convenient to install.

[0045] In some embodiments, the coupling plate 43 is designed to be an arc-shaped plate so that it fits better with the cam structure and runs more smoothly.

[0046] In some embodiments, the cam assembly 32 includes a circular wheel body 321 and a protrusion 322, and the wheel body 321 and the protrusion 322 are two independent parts that can together form a complete cam. The wheel body 321 and the protrusion 322 are connected by a connecting screw 323, and the wheel body 321 is radially provided with a threaded hole, and the connecting screw 323 passes through the threaded hole and is threadedly matched with it. The lower end of the connecting screw 323 is rotatably connected to the protrusion 322; by rotating the upper end of the connecting screw 323, the distance between the protrusion 322 and the wheel body 321 can be adjusted, thereby adjusting the protrusion degree of the protrusion 322, thereby playing a role in adjusting the tamping strength of the tamping mechanism. The wheel body 321 is rotatably mounted on the installation box 20 through a pair of rotating shafts 325, and the rotating shaft 325 is transmission-connected to the output end of the motor assembly 31.

[0047] It is understandable that the motor assembly 31 can be a single motor or a reduction motor with a reduction mechanism, and the choice can be made based on actual conditions and costs.

[0048] In a further embodiment, at least one guiding rod 324 is also connected between the wheel body portion 321 and the protruding portion 322. The lower end of the guiding rod 324 is fixedly connected to the protruding portion 322. A guiding hole is formed in the wheel body portion 321, and the middle upper part of the guiding rod 324 is inserted into the guiding hole to achieve the connection. The counterweight guiding rod 324 is mainly to prevent the protruding portion 322 from rotating relative to the wheel body portion 321, so that the protruding portion 322 can only perform a linear movement relative to the wheel body portion 321 (i.e., the linear movement in the up and down direction in the figure).

[0049] In a further embodiment, the top of the box body 21 is open and is equipped with a cover plate 22. The top opening is directly opposite to the connecting screw 323. By opening the cover plate 22, a tool can be used to rotate the connecting screw 323 to adjust the protruding degree of the protruding portion 322, which is convenient to adjust and does not require opening the whole machine.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be covered within the scope of the claims and the description of the present application. In particular, as long as there is no conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A backfill compaction device, characterized in that, Comprising: A walking base (10), including a base (11), the lower surface of the base (11) being provided with rollers (12); An installation box (20), fixedly installed on the base (11); A ramming mechanism (40), including a ramming base (41), a ramming rod (42), a coupling plate (43) and a ramming block (44), the ramming base (41) being fixedly installed on the installation box (20), the ramming rod (42) being in vertical sliding fit connection with the ramming base (41), the coupling plate (43) being fixedly installed at the top end of the ramming rod (42), the ramming block (44) being fixedly installed at the bottom end of the ramming rod (42), and the ramming block (44) being located below the base (11); A driving mechanism (30), including a motor assembly (31) and a cam assembly (32), the motor assembly (31) and the cam assembly (32) being in transmission connection, the motor assembly (31) being fixedly installed on the installation box (20), and the cam assembly (32) being in contact connection with the coupling plate (43).

2. The tamping device for backfill soil according to claim 1, characterized in that: An elastic member (45) is installed on the ramming rod (42), and the elastic member (45) is located between the ramming base (41) and the coupling plate (43).

3. The tamping device for backfill soil according to claim 1, characterized in that: The coupling plate (43) is an arc-shaped plate.

4. The tamping device for backfill soil according to claim 1, characterized in that: The cam assembly (32) includes a circular wheel body portion (321) and a protruding portion (322), and the wheel body portion (321) and the protruding portion (322) are connected into a cam structure through a connecting screw (323); the wheel body portion (321) is rotatably installed on the installation box (20) through a pair of rotating shafts (325).

5. The tamping device for backfill soil according to claim 4, characterized in that: At least one guide rod (324) is further connected between the wheel body portion (321) and the protruding portion (322).

6. The tamping device for backfill soil according to claim 4, wherein: The installation box (20) includes a box body (21), the box body (21) being fixedly installed on the base (11), and a push rod (24) being installed on the back surface of the box body (21).

7. The tamping device for backfill soil according to claim 6, wherein: The top of the box body (21) is open and is equipped with a cover plate (22).

8. The backfill compaction device according to claim 6, characterized in that: An inspection opening is formed on the side surface of the box body (21), and an inspection door (25) is equipped.

9. The tamping device for backfill soil according to claim 6, wherein: An observation window (23) is installed on the front surface of the box body (21).

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