A fabricated rammer

By using a prefabricated design for the threaded cylinder and threaded head connection, combined with reinforcing ribs and a limiting mechanism, the problems of inconvenient transportation and storage of the soil rammer and unstable connection are solved, enabling convenient disassembly and stable connection, reducing usage costs and improving safety.

CN224451583UActive Publication Date: 2026-07-03TANGSHAN SANKUAN TOOLS

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TANGSHAN SANKUAN TOOLS
Filing Date
2025-06-23
Publication Date
2026-07-03

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  • Figure CN224451583U_ABST
    Figure CN224451583U_ABST
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Abstract

This utility model discloses an assembled soil tamping device, including a handle and a tamping head. The tamping head has a threaded cylinder with four reinforcing ribs. A limiting hole is formed on the bottom side wall of the threaded cylinder. A threaded head is provided at the bottom of the handle, and a limiting mechanism is provided on the threaded head. The limiting mechanism includes an upper sliding cavity and a lower sliding cavity formed on the threaded head, and the two are interconnected. A sliding plate is provided inside the lower sliding cavity, and a spring is provided inside the lower sliding cavity at the bottom of the sliding plate. By setting the threaded cylinder and threaded head, an assembled connection between the handle and the tamping head is achieved, facilitating disassembly and assembly. During transportation and storage, the handle and the tamping head can be separated, reducing space occupation and making it easy to carry and store. The limiting mechanism, through the elastic force of the spring, causes the limiting head to automatically extend and insert into the limiting hole, achieving automatic limiting between the handle and the tamping head, preventing loosening of the threaded connection, and improving the stability and safety of the connection.
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Description

Technical Field

[0001] This utility model belongs to the field of construction tools technology, specifically relating to a prefabricated ramming device. Background Technology

[0002] In construction, soil rammers are commonly used tools for compacting soil. Existing soil rammers typically employ a one-piece structure, with the handle and ramming head fixedly connected. This design occupies considerable space during transportation and storage, making it inconvenient to carry and store. Furthermore, if either the handle or the ramming head is damaged, the entire rammer needs to be replaced, increasing operating costs. In addition, existing soil rammers often have unstable connection structures, prone to loosening, which affects their effectiveness and safety. Utility Model Content

[0003] The purpose of this invention is to provide a prefabricated ramming device to solve the problems of inconvenient transportation and storage, high operating costs, and unstable connection of existing ramming devices.

[0004] An assembled soil tamping device includes a handle and a tamping head. The tamping head has a threaded cylinder with four reinforcing ribs. A limit hole is formed on the bottom side wall of the threaded cylinder. The bottom end of the handle is provided with a threaded head. The threaded head is provided with a limit mechanism. The limit mechanism includes an upper sliding cavity and a lower sliding cavity formed on the threaded head, and the two are interconnected. A sliding plate is provided inside the lower sliding cavity. A spring is provided inside the lower sliding cavity at the bottom of the sliding plate. A limit head that slides up and down is provided inside the upper sliding cavity. The limit head is fixedly connected to the sliding plate. The handle consists of an upper handle and a lower handle, and the two are fixedly connected by a connecting sleeve.

[0005] Furthermore, the reinforcing ribs are distributed in a cross shape on the top of the ramming head, and all four reinforcing ribs are fixedly connected to the side wall of the threaded cylinder to enhance the connection strength between the threaded cylinder and the ramming head.

[0006] Furthermore, the threaded head and the handle are integrally formed, and the external thread of the threaded head matches the internal thread of the threaded cylinder, ensuring a tight and reliable threaded connection between the handle and the ramming head.

[0007] Furthermore, the inner diameter of the upper sliding cavity is larger than the inner diameter of the lower sliding cavity, forming a stepped structure to limit the sliding stroke of the slide plate and prevent the slide plate from sliding out of the upper sliding cavity.

[0008] Furthermore, the spring is a compression spring, with one end fixedly connected to the bottom of the slide plate and the other end fixedly connected to the bottom inner wall of the sliding cavity. The elastic force of the spring keeps the limiting head in an extended state, thereby achieving automatic limiting.

[0009] Furthermore, the top of the limiting head is hemispherical, which facilitates the smooth insertion of the limiting head into the limiting hole and reduces the resistance during insertion.

[0010] Furthermore, the handle is provided with a non-slip rubber end cap to increase friction during use and prevent the handle from slipping out of the hand.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model achieves an assembled connection between the handle and the tamping head by setting a threaded cylinder and a threaded head, which facilitates disassembly and assembly. During transportation and storage, the handle and the tamping head can be separated, reducing space occupation and making it easy to carry and store.

[0013] When one part of the handle or tamping head is damaged, only the corresponding part needs to be replaced, instead of replacing the whole thing, which reduces the cost of use.

[0014] The reinforcing ribs are arranged in a cross shape and fixedly connected to the threaded cylinder, which enhances the connection strength between the threaded cylinder and the ramming head, making the entire ramming device more stable.

[0015] The limiting mechanism uses the elastic force of a spring to automatically extend the limiting head and insert it into the limiting hole, thus achieving automatic limiting between the handle and the tamping head, preventing the threaded connection from loosening, and improving the stability and safety of the connection.

[0016] The hemispherical design at the top of the limiting head facilitates insertion into the limiting hole, reduces resistance during insertion, and makes installation more convenient and faster.

[0017] The non-slip rubber sheath at the end of the handle increases comfort and safety during use. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the ramming head structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the threaded head structure of this utility model;

[0022] Figure 4 This is a cross-sectional view of the threaded head structure of this utility model;

[0023] In the picture:

[0024] 1. Handle; 2. Hammer head; 3. Reinforcing rib; 4. Threaded cylinder; 5. Limiting hole; 6. Threaded head; 7. Limiting mechanism; 71. Upper sliding cavity; 72. Lower sliding cavity; 73. Slide plate; 74. Spring; 75. Limiting head. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1

[0027] like Figure 1-4 As shown;

[0028] A prefabricated ramming device.

[0029] This implementation plan addresses the technical problems existing in the prior art, such as those disclosed in the background section above: "In the construction process, a soil rammer is a commonly used tool for compacting soil, etc. Existing soil rammers typically adopt an integral structure, with the handle and ramming head fixedly connected. This structure occupies a large space during transportation and storage, making it inconvenient to carry and store. Moreover, when one part, the handle or the ramming head, is damaged, the entire unit needs to be replaced, increasing the cost of use. In addition, the existing soil rammers are not stable enough in their connection structure, and are prone to loosening, affecting the performance and safety of use." Considering practical use, this problem is clearly real and difficult to solve. Therefore, to solve this technical problem, a prefabricated soil rammer is provided.

[0030] like Figure 1-4 As shown in the figure;

[0031] Based on the above, a prefabricated soil rammer includes a handle 1 and a rammer head 2. The rammer head 2 has a threaded cylinder 4 attached to it via four reinforcing ribs 3. The reinforcing ribs 3 are arranged in a cross shape at the top of the rammer head 2, and all four reinforcing ribs 3 are fixedly connected to the side wall of the threaded cylinder 4 to enhance the connection strength between the threaded cylinder 4 and the rammer head 2. A limiting hole 5 is provided on the bottom side wall of the threaded cylinder 4. A threaded head 6 is provided at the bottom of the handle 1. The threaded head 6 and the handle 1 are integrally formed, and the external thread of the threaded head 6 matches the internal thread of the threaded cylinder 4, ensuring a tight and reliable threaded connection between the handle 1 and the rammer head 2. The handle 1 consists of an upper handle and a lower handle, which are fixedly connected by a connecting sleeve.

[0032] A limiting mechanism 7 is provided on the threaded head 6. The limiting mechanism 7 includes an upper sliding cavity 71 and a lower sliding cavity 72 formed on the threaded head 6, and the two are interconnected. The inner diameter of the upper sliding cavity 71 is larger than the inner diameter of the lower sliding cavity 72, forming a stepped structure, which is used to limit the sliding stroke of the slide plate 73 and prevent the slide plate 73 from sliding out of the upper sliding cavity 71. The slide plate 73 is provided inside the lower sliding cavity 72. A spring 74 is provided inside the lower sliding cavity 72 at the bottom of the slide plate 73. The spring 74 is a compression spring, one end of which is fixedly connected to the bottom of the slide plate 73, and the other end is fixedly connected to the bottom inner wall of the lower sliding cavity 72. The elastic force of the spring 74 keeps the limiting head 75 in the extended state, realizing automatic limiting. The upper sliding cavity 71 is provided with a vertically sliding limiting head 75. The limiting head 75 is fixedly connected to the slide plate 73. The top of the limiting head 75 is hemispherical, which facilitates the smooth insertion of the limiting head 75 into the limiting hole 5 and reduces the resistance during insertion. The tail end of the handle 1 is provided with a non-slip rubber tail sleeve.

[0033] In use, align the threaded head 6 of handle 1 with the threaded cylinder 4, and rotate handle 1 clockwise. The threaded head 6 gradually screws into the threaded cylinder 4. During rotation, the limiting head 75 is squeezed by the inner wall of the threaded cylinder 4, overcoming the elastic force of the spring 74 and sliding downwards. When the limiting head 75 reaches the position of the limiting hole 5, the elastic force of the spring 74 causes the limiting head 75 to automatically extend and insert into the limiting hole 5, thus achieving a fixed connection between handle 1 and ramming head 2. To disassemble, rotate handle 1 counterclockwise, and the limiting head 75 disengages from the limiting hole 5, allowing handle 1 to be separated from ramming head 2.

[0034] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fabricated rammer, characterized by, The device includes a handle (1) and a ramming head (2). The ramming head (2) is provided with a threaded cylinder (4) through four reinforcing ribs (3). The bottom side wall of the threaded cylinder (4) is provided with a limiting hole (5). The bottom end of the handle (1) is provided with a threaded head (6). The threaded head (6) is provided with a limiting mechanism (7). The limiting mechanism (7) includes an upper sliding cavity (71) and a lower sliding cavity (72) provided on the threaded head (6), and the two are interconnected. The lower sliding cavity (72) is provided with a sliding plate (73). The lower sliding cavity (72) at the bottom of the sliding plate (73) is provided with a spring (74). The upper sliding cavity (71) is provided with a limiting head (75) that slides up and down. The limiting head (75) is fixedly connected to the sliding plate (73). The handle (1) consists of an upper handle and a lower handle, and the two are fixedly connected by a connecting sleeve.

2. A fabricated rammer as claimed in claim 1, wherein, The reinforcing ribs (3) are distributed in a cross shape on the top of the ramming head (2), and all four reinforcing ribs (3) are fixedly connected to the side wall of the threaded cylinder (4) to enhance the connection strength between the threaded cylinder (4) and the ramming head (2).

3. The fabricated rammer as claimed in claim 1, wherein: The threaded head (6) and the handle (1) are integrally formed, and the external thread of the threaded head (6) matches the internal thread of the threaded cylinder (4), ensuring that the threaded connection between the handle (1) and the ramming head (2) is tight and reliable.

4. The fabricated rammer as claimed in claim 1, wherein: The inner diameter of the upper sliding cavity (71) is larger than the inner diameter of the lower sliding cavity (72), forming a stepped structure to limit the sliding stroke of the slide plate (73) and prevent the slide plate (73) from sliding out of the upper sliding cavity (71).

5. The fabricated rammer of claim 1, wherein: The spring (74) is a compression spring. One end of the spring is fixedly connected to the bottom of the slide (73), and the other end is fixedly connected to the bottom inner wall of the sliding cavity (72). The elastic force of the spring (74) keeps the limiting head (75) in an extended state, thereby achieving automatic limiting.

6. The fabricated rammer of claim 1, wherein: The top of the limiting head (75) is hemispherical, which makes it easy for the limiting head (75) to be smoothly inserted into the limiting hole (5) and reduces the resistance during insertion.

7. The fabricated ram according to claim 1, wherein: The handle (1) is provided with a non-slip rubber tail sleeve at its tail end.