High-strength sapper shovel with locking structure

By designing locking components on the entrenching tool, including connecting protrusions, locking rings, anti-loosening washers, and limiting rings, the problem of accidental unfolding of the shovel head and handle during use is solved, achieving stable connection and safety of the entrenching tool in different configurations.

CN224133816UActive Publication Date: 2026-04-17FIRSIGHT INNOVATION(XIAMEN) TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FIRSIGHT INNOVATION(XIAMEN) TECH CO LTD
Filing Date
2025-05-13
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing entrenching tools lack a reliable locking mechanism when switching between different usage modes, which makes the shovel head and handle prone to accidental unfolding, affecting operational stability and safety.

Method used

The locking assembly includes a connecting lug, locking ring, anti-loosening washer, anti-loosening ring, and limit ring. Through the combination design of limit groove and bolt and anti-loosening nut, it ensures that the shovel head and shovel head tube maintain a stable connection under different usage conditions.

Benefits of technology

It effectively prevents the shovel head from accidentally separating or loosening during use, improving the stability and safety of the entrenching shovel and ensuring structural stability during high-intensity operations.

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Abstract

The high-strength sapper shovel with the locking structure comprises a shovel head, a shovel head pipe and a locking assembly, the shovel head is connected with the shovel head pipe through the locking assembly, the locking assembly comprises a connecting protrusion fixedly connected to the outer surface of the shovel head, a plurality of limiting grooves are formed in the outer surface of the connecting protrusion, and the locking assembly is connected with the shovel head pipe through the locking assembly. The locking assembly comprises a locking ring, a first anti-loose washer, an anti-loose ring, a second anti-loose washer and a limiting ring which are sequentially arranged on the outer surface of the shovel head pipe in a sleeving mode, and the limiting ring is matched with the limiting groove. According to the high-strength sapper shovel with the locking structure, a limiting ring in the locking assembly is matched with a limiting groove in a connecting protrusion, and the shovel head and the shovel head pipe can be effectively prevented from being accidentally separated or loosened in the using process in combination with multiple protection of the locking ring, a first anti-loosening washer, an anti-loosening ring and a second anti-loosening washer; it is ensured that the sapper shovel has high stability and safety in different use forms, and a user is prevented from being injured.
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Description

Technical Field

[0001] This utility model relates to the field of outdoor tool technology, and in particular to a high-strength entrenching shovel with a locking structure. Background Technology

[0002] Outdoor gear refers to equipment needed for various adventure tourism and outdoor activities, including tents, backpacks, small ice axes, crampons, entrenching tools, etc. Among them, entrenching tools are made of high-quality quenched high-carbon steel, which increases strength, wear resistance, corrosion resistance and high temperature resistance. It is a multi-functional outdoor tool with the characteristics of being easy to carry, versatile and of high quality.

[0003] As a multi-functional outdoor tool, the entrenching shovel is widely used in military and field operations. However, existing entrenching shovels have many problems. Currently, entrenching shovels with folding or telescopic functions lack a reliable locking structure when switching between different usage modes. For example, after the shovel head and handle are folded, they are easy to accidentally unfold during use, causing injury to the user and affecting operational stability and safety. To address these issues, we propose a high-strength entrenching shovel with a locking structure. Utility Model Content

[0004] The purpose of this invention is to provide a high-strength entrenching shovel with a locking structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A high-strength entrenching tool with a locking structure includes a shovel head, a shovel head tube, and a locking assembly, wherein the shovel head is connected to the shovel head tube via the locking assembly.

[0007] The locking assembly includes a connecting protrusion fixedly connected to the outer surface of the shovel head. The outer surface of the connecting protrusion has multiple limiting grooves. The locking assembly includes a locking ring, an anti-loosening washer one, an anti-loosening ring, an anti-loosening washer two, and a limiting ring sequentially sleeved on the outer surface of the shovel head tube. The limiting ring matches the limiting grooves.

[0008] In a further embodiment, the outer surface of the shovel tube has a first circular hole, the outer surface of the connecting protrusion has a second circular hole, a bolt is installed inside the second circular hole, and an anti-loosening nut is threaded onto the outer surface of the bolt.

[0009] In a further embodiment, the outer surface of the shovel tube is provided with a main anti-slip texture, and the outer surfaces of the locking ring and the anti-loosening ring are both provided with secondary anti-slip textures.

[0010] In a further embodiment, the upper surface of the connecting protrusion is provided with a head tube top cover, and the head tube top cover is adapted to one end of the shovel head tube.

[0011] In a further embodiment, one side of the shovel head has a serrated edge, and the other side of the shovel head has a cutting edge.

[0012] In a further embodiment, the outer surface of the shovel tube is provided with a threaded ring, and the inside of the locking ring and the inside of the anti-loosening ring are both provided with threads that match the threaded ring.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This device, through the matching of the limiting ring in the locking assembly with the limiting groove on the connecting protrusion, combined with the multiple protections of the locking ring, anti-loosening washer one, anti-loosening ring, and anti-loosening washer two, can effectively prevent the shovel head and shovel head tube from accidentally separating or loosening during use, ensuring that the entrenching shovel has high stability and safety under different usage conditions, avoiding injury to the user. The bolt and anti-loosening nut pass through the round hole one of the shovel head tube and the round hole two of the connecting protrusion, connecting the shovel head and the shovel head tube, allowing it to rotate. This can effectively prevent the shovel head from loosening due to vibration during use, thus preventing the product from being affected by the loosening of the threads. This allows the entrenching shovel to maintain structural stability even in high-intensity operations such as digging and chopping. Attached Figure Description

[0015] Figure 1 A front view schematic diagram of a high-strength entrenching shovel with a locking mechanism;

[0016] Figure 2 A disassembled structural diagram of the locking assembly of a high-strength entrenching shovel with a locking structure;

[0017] Figure 3 A schematic diagram of the separation structure between the shovel head and the locking assembly in a high-strength entrenching shovel with a locking mechanism;

[0018] Figure 4 A schematic diagram of the locked state structure of a high-strength entrenching shovel with a locking mechanism;

[0019] Figure 5 A schematic diagram of the locking assembly and connecting protrusion disengaged from a high-strength entrenching shovel with a locking structure.

[0020] Figure 6 This is a schematic diagram of the adjustable state structure of a high-strength entrenching shovel with a locking mechanism.

[0021] In the diagram: 1. Shovel head; 2. Shovel head tube; 3. Locking assembly; 31. Locking ring; 32. Anti-loosening washer one; 33. Anti-loosening ring; 34. Anti-loosening washer two; 35. Limiting ring; 4. Threaded ring; 5. Round hole one; 6. Round hole two; 7. Bolt; 8. Anti-loosening nut; 9. Connecting protrusion; 10. Limiting groove; 11. Main anti-slip texture; 12. Secondary anti-slip texture; 13. Head tube top cover; 14. Serrated edge; 15. Blade edge. Detailed Implementation

[0022] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] 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.

[0025] Please see Figures 1-6 In this utility model, a high-strength entrenching shovel with a locking structure includes a shovel head 1, a shovel head tube 2, and a locking assembly 3. The shovel head 1 is connected to the shovel head tube 2 through the locking assembly 3.

[0026] Locking assembly 3 includes a connecting protrusion 9 fixedly connected to the outer surface of the shovel head 1. Multiple limiting grooves 10 are formed on the outer surface of the connecting protrusion 9. Locking assembly 3 includes a locking ring 31, a first anti-loosening washer 32, an anti-loosening ring 33, a second anti-loosening washer 34, and a limiting ring 35 sequentially fitted onto the outer surface of the shovel head tube 2. The limiting ring 35 matches the limiting grooves 10, forming the core locking structure of the entrenching tool. The connecting protrusion 9 and the limiting grooves 10 provide a positioning basis for locking. The locking assembly 3, composed of the locking ring 31, the first anti-loosening washer 32, the anti-loosening ring 33, the second anti-loosening washer 34, and the limiting ring 35, achieves a reliable connection and locking between the shovel head 1 and the shovel head tube 2, preventing accidental loosening or separation during use. A first circular hole 5 is formed on the outer surface of the shovel head tube 2, and a second circular hole 6 is formed on the outer surface of the connecting protrusion 9. The interior of the second circular hole 6 is designed with... A bolt 7 is provided, and a lock nut 8 is threaded onto the outer surface of the bolt 7. The shovel head 1 and the shovel head tube 2 are connected by the bolt 7 and the lock nut 8 to achieve rotation. Lock washers 1 32 and 2 34 are made of silicone. The entire locking mechanism consists of a limit ring 35, a lock ring 33, a locking ring 31, and silicone washers. The silicone washers provide protection, buffering, and fastening. When the angle of the shovel head 1 is adjusted, rotating the locking ring 31 advances the entire mechanism. The connecting protrusion 9 of the limit ring 35 and the limit groove 10 of the shovel head 1 engage and fix the mechanism. The lock ring 33, located between the shovel head 1 and the locking ring 31, can effectively prevent the shovel head 1 from loosening due to vibration during use, thus affecting the use of the product. In other words, the locking ring 31, the lock ring 33, and the limit ring 35 support and rely on each other, which can better secure the shovel head 1 and improve the user experience.

[0027] The outer surface of the shovel head tube 2 is provided with a main anti-slip texture 11, and the outer surfaces of the locking ring 31 and the anti-loosening ring 33 are provided with secondary anti-slip textures 12. The main anti-slip texture 11 increases the friction between the hand and the shovel head tube 2, while the secondary anti-slip texture 12 increases the friction when operating the locking ring 31 and the anti-loosening ring 33. Whether holding the shovel for work or adjusting the locking assembly 3, slippage can be effectively prevented, improving the comfort and safety of use.

[0028] Example: When working in the field in rainy weather, hands are prone to sweating and getting wet. At this time, holding the shovel tube 2 with the main anti-slip texture 11 will not easily slip off. When it is necessary to adjust the locking ring 31 or the anti-loosening ring 33, the secondary anti-slip texture 12 can also ensure smooth operation and avoid adjustment failure or tool slippage due to slippage.

[0029] The upper surface of the connecting protrusion 9 is provided with a head tube top cover 13, which is adapted to one end of the shovel head tube 2. The head tube top cover 13 can protect the end of the shovel head tube 2 from damage caused by collision and wear during use. At the same time, when storing or transporting the entrenching tool, it can prevent debris from entering the shovel head tube 2, keeping the tool clean and in good working order. One side of the shovel head 1 has a serrated edge 14, and the other side of the shovel head 1 has a cutting edge 15. The serrated edge 14 on one side of the shovel head 1 can be used for sawing wood, ropes, etc. The cutting edge 15 on the other side can be used to cut branches, dig soil, etc., giving the entrenching shovel multiple functions and meeting the diverse needs of different scenarios such as military and field operations. The outer surface of the shovel head tube 2 is provided with a threaded ring 4. The inside of the locking ring 31 and the inside of the anti-loosening ring 33 are both provided with threads that match the threaded ring 4. The threaded ring 4 on the outer surface of the shovel head tube 2 matches the threads inside the locking ring 31 and the anti-loosening ring 33, which facilitates quick installation and disassembly of the locking component 3, making it convenient to use and improving the practicality and durability of the tool.

[0030] The working principle of this utility model is as follows:

[0031] In use, the shovel head 1 and the shovel head tube 2 are connected by bolts 7 and anti-loosening nuts 8, allowing the shovel head 1 to rotate around bolts 7. After adjusting the angle of the shovel head 1 by rotation, the limiting ring 35 is aligned with the corresponding limiting groove 10 and engaged. The anti-loosening ring 33 and the locking ring 31 are then tightened in sequence and moved closer to the shovel head 1. This allows the anti-loosening washer 32 between the limiting ring 35 and the anti-loosening ring 33, and the anti-loosening washer 34 between the anti-loosening ring 33 and the locking ring 31 to provide a buffering and tightening effect. During field excavation operations, even if a large force is applied, the shovel head 1 will not loosen unexpectedly due to the action of the locking assembly 3. The limiting ring 35, located between the shovel head 1 and the locking ring 31, can effectively prevent the shovel head 1 from loosening due to vibration during use, thus ensuring operational safety.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-strength shovel with a locking structure, characterized by comprising: It includes a shovel head (1), a shovel head tube (2) and a locking assembly (3), wherein the shovel head (1) is connected to the shovel head tube (2) through the locking assembly (3); The locking assembly (3) includes a connecting protrusion (9) fixedly connected to the outer surface of the shovel head (1). The outer surface of the connecting protrusion (9) is provided with multiple limiting grooves (10). The locking assembly (3) includes a locking ring (31), a first anti-loosening washer (32), an anti-loosening ring (33), a second anti-loosening washer (34), and a limiting ring (35) sequentially fitted onto the outer surface of the shovel head tube (2). The limiting ring (35) matches the limiting groove (10).

2. A high-strength entrenching tool with a locking structure according to claim 1, characterized in that: The outer surface of the shovel tube (2) is provided with a first round hole (5), the outer surface of the connecting protrusion (9) is provided with a second round hole (6), a bolt (7) is provided inside the second round hole (6), and a locking nut (8) is threaded on the outer surface of the bolt (7).

3. The high-strength shovel with a locking structure according to claim 1, characterized in that: The outer surface of the shovel tube (2) is provided with a main anti-slip texture (11), and the outer surfaces of the locking ring (31) and the anti-loosening ring (33) are provided with secondary anti-slip textures (12).

4. The high-strength shovel with a locking structure according to claim 1, characterized in that: The upper surface of the connecting protrusion (9) is provided with a head tube top cover (13), and the head tube top cover (13) is adapted to one end of the shovel head tube (2).

5. The high-strength shovel with a locking structure according to claim 1, characterized in that: One side of the shovel head (1) has a serrated edge (14), and the other side of the shovel head (1) has a cutting edge (15).

6. The high-strength shovel with a locking structure according to claim 1, characterized in that: The outer surface of the shovel tube (2) is provided with a threaded ring (4), and the inside of the locking ring (31) and the inside of the anti-loosening ring (33) are both provided with threads that match the threaded ring (4).