Multi-directional shovel and hoe and its connecting structure

Abstract

This utility model discloses a multi-directional shovel-axe-hoe adapter structure, belonging to the field of agricultural implement technology. The adapter structure connects the hoe handle and the hoe head, including an adapter base, a universal joint, and a connecting tube. The adapter base has a base plate, with the hoe head fixedly connected below the base plate. The universal joint is fixedly connected above the base plate, and the connecting tube is fixedly connected to the universal joint. The connecting tube is used to detachably connect to the hoe handle. The adapter base also has a vertical plate, a longitudinal plate, and a transverse plate, which are disposed on the base plate and can be detachably connected to the connecting tube in a freely switchable manner based on the universal joint rotation, forming a spatial three-axis coordinate system. This utility model also discloses a multi-directional shovel-axe-hoe based on this adapter structure, which can adjust the hoe's usage posture to achieve better soil loosening and weeding effects for different soil types and weed species.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural implements technology, and provides a multi-directional shovel, axe, and hoe and its connecting structure. Background Technology

[0002] The hoe is one of the most commonly used agricultural tools. It can be used for weeding, loosening soil, and digging in farmland. Due to its simplicity and practicality, it is widely used and has made a significant contribution to people's production and lives. The hoe is mainly used for weeding, loosening soil, and transferring mud during cultivation. However, the hoe is fixed to the handle, so it cannot be rotated in different directions. This has caused confusion for people in using the hoe properly under different environmental conditions. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a multi-directional shovel axe, which aims to solve the problem of confusion caused by the fact that the shovel head is fixed on the handle and cannot be rotated in different directions, thus hindering people's proper use of the shovel.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] This utility model provides a conversion structure for a multi-directional shovel axe, used to connect the handle and the head of the multi-directional shovel axe. The conversion structure includes a conversion base, a universal joint, and a connecting pipe. The conversion base has a base plate, with the head fixedly connected to the bottom of the base plate and the universal joint fixedly connected to the top of the base plate. The connecting pipe is fixedly connected to the opposite end of the universal joint away from the base plate. The connecting pipe is used to detachably connect the handle to the opposite end of the universal joint away from the universal joint. The conversion base also has a vertical plate, a longitudinal plate, and a transverse plate, which are disposed on the base plate and can be detachably connected to the connecting pipe in a freely switchable manner after rotation based on the universal joint, and form a spatial three-axis coordinate system. Thus, this multi-directional shovel / axe / hoe possesses the following characteristics: First, it is highly flexible. Due to the universal joint design, users can adjust the angle between the hoe head and the handle under different farming conditions, increasing its flexibility. Second, it is widely adaptable, suitable for different soil types and crop varieties, meeting diverse agricultural needs. Third, it improves work efficiency. By adjusting the direction of the hoe head, users can perform weeding, loosening soil, and other operations more efficiently, reducing physical exertion. Fourth, it is easy to disassemble and store. The freely switchable connection design makes the tool easier to disassemble and store when not in use, saving space. Fifth, it reduces labor intensity. The multi-directional operation reduces the physical burden on users during operation, lowering labor intensity.

[0006] Optionally, the fixed connection can be a welded or riveted connection, while the detachable connection can be a swivel connection, bolted connection, or pin connection. In this way, the fixed connection provides the necessary strength and stability, while the detachable connection improves the tool's flexibility and ease of maintenance. By appropriately combining these connection methods, the performance and reliability of the multi-directional shovel and spade during use can be ensured, while also allowing users to flexibly apply it in different working environments.

[0007] Optionally, the universal joint consists of an upper hinge seat, a conversion block, and a lower hinge seat. The upper hinge seat is fixedly connected to the connecting pipe, and the lower hinge seat is fixedly connected to the adapter seat. The conversion block is spatially cross-hinged with both the upper and lower hinge seats. This fixed connection is a welded connection. The advantages of this design are: firstly, flexibility—the universal joint design allows the hoe to rotate freely in multiple directions, enhancing the tool's adaptability to different working environments; secondly, stability—the fixed connection of the upper and lower hinge seats ensures the stability of the hoe during use, reducing the risk of component loosening due to vibration or impact; and thirdly, ease of operation—the conversion block design allows users to quickly adjust the hoe's posture, improving work efficiency.

[0008] Optionally, the vertical connecting plate is mounted on the base plate, with the longitudinal connecting plate corresponding to the direction of rotation of the lower hinge seat when the conversion block rotates, and the transverse connecting plate corresponding to the direction of rotation of the upper hinge seat when the conversion block rotates; or, the longitudinal connecting plate corresponds to the direction of rotation of the upper hinge seat when the conversion block rotates, and the transverse connecting plate corresponds to the direction of rotation of the conversion block when the lower hinge seat rotates. This structural design takes into account the relative positions and functional requirements of the various components to support relative movement and load transmission, and is suitable for adjusting the posture of the hoe.

[0009] Optionally, the structure of the vertical connecting plate on the base plate can be replaced by the vertical connecting plate being installed on the connecting pipe, and the vertical connecting plate can rotate with the connecting pipe and can be detachably connected to the lower hinge seat. As an alternative, the structure of the adapter seat can be simplified.

[0010] Optionally, the longitudinal or transverse joint plate may be provided with a shim between itself and the base plate to accommodate the height difference generated when the conversion block rotates between the upper and lower hinge seats; the transverse or longitudinal joint plate without a shim can form a T-shaped component with the base plate as a whole, increasing strength.

[0011] Optionally, the base plate, longitudinal joint plate, and transverse joint plate are integrated into a single structure, with both the longitudinal and transverse joint plates formed by a double bend relative to the base plate. This bending process facilitates manufacturing.

[0012] Optionally, the connecting pipe is provided with at least one set of transverse and longitudinal insertion holes in a spatial orthogonal cross structure. The connecting pipe is selectively fixedly connected to one of the vertical, longitudinal, or transverse plates on the adapter seat by connecting bolts. The advantage of this design is that it allows for rapid assembly and disassembly under different working conditions while maintaining the required strength and stability, making it suitable for complex mechanical systems or equipment.

[0013] Optionally, the vertical connecting plate, longitudinal connecting plate and transverse connecting plate provided on the adapter are configured with arc-shaped surfaces that fit against the outer wall of the connecting pipe on the corresponding surfaces that contact the connecting pipe, so that these connecting plates can fit tightly against the outer wall of the connecting pipe.

[0014] Optionally, a clamping plate for holding the hoe is provided under the base plate of the adapter. The clamping plate is fixedly connected to the hoe by bolts or rivets. The clamping plate can ensure a stable and reliable fixed connection between the hoe and the adapter, while also allowing for disassembly and replacement.

[0015] This utility model also provides a multi-directional shovel axe, comprising a hoe handle, a hoe head, and the aforementioned adapter structure. The base plate of the adapter structure is used to connect the hoe head, and the connecting tube of the adapter structure is used to connect the hoe handle. The hoe head is trapezoidal in shape, and its bottom and / or sides have cutting edges. This design improves operability and enhances its versatility. Alternatively, the hoe head can also be in the shape of a comb-toothed rake to perform operations such as tilling, weeding, loosening soil, and digging.

[0016] The beneficial effects of this utility model are: the multi-directional shovel, axe and hoe of this utility model have the advantages of simple structure, strong operability, low cost, convenient processing and good practical effect. In particular, it has the characteristic of being able to rotate in different directions, which makes it more convenient for weeding, loosening soil and transferring mud, so as to adapt to different terrain and operation needs such as shovel, hoe, axe, dig, chop, cut, spade, rake and split.

[0017] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:

[0019] Figure 1 This is a front view of the first application variation of the multi-directional shovel and axe of this utility model;

[0020] Figure 2 This is a front view of the second application variation of the multi-directional shovel and axe of this utility model;

[0021] Figure 3 This is a side view of the third application variation of the multi-directional shovel and axe of this utility model;

[0022] Figure 4 for Figures 1-3 A three-dimensional schematic diagram of the adapter in the diagram;

[0023] Figure 5 This is a three-dimensional schematic diagram of another structure of the multi-directional shovel and axe of this utility model;

[0024] Figure 6 for Figure 5 Schematic diagram of the side-tilting structure of the connecting pipe in the middle;

[0025] Figure 7 for Figure 5 Schematic diagram of the inverted structure before the connecting pipe in the middle;

[0026] Reference numerals: 1-Adapter, 11-Base plate, 12-Vertical joint plate, 13-Longitudinal joint plate, 14-Horizontal joint plate, 15-Elevating block, 16-Clamping plate, 17-Bolt or rivet; 2-Universal joint, 21-Upper hinge seat, 22-Conversion block, 23-Lower hinge seat; 3-Connecting pipe, 31-Horizontal insertion hole, 32-Longitudinal insertion hole, 33-Connecting bolt; 4-Hoe handle; 5-Hoe. Detailed Implementation

[0027] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0028] like Figure 1-4As shown in this embodiment, a multi-directional shovel and axe adapter structure is used to connect the handle 4 and the shovel head 5 of the multi-directional shovel and axe. It mainly consists of an adapter base 1, a universal joint 2, and a connecting pipe 3. The adapter base 1 serves as the base for connecting the shovel head 5 and the universal joint 2 to provide stable support. It has a base plate 11, under which the shovel head 5 is fixedly connected. The shovel head 5 is used for actual tillage operations and has good cutting and loosening capabilities. The universal joint 2 is fixedly connected above the base plate 11. The universal joint 2 allows... The hoe 5 can rotate freely in multiple directions, solving the problem of fixed direction in traditional hoes. This allows for flexible use in different farming environments. A connecting pipe 3 is fixedly connected to the end opposite to the base plate 11. This connecting pipe 3 connects the hoe handle 4 to the universal joint 2, allowing for some movement between the handle 4 and the hoe 5, further enhancing operational flexibility. The connecting pipe 3 is detachably connected to the hoe handle 4 at the end opposite to the universal joint 2. The handle 4 serves as the grip part of the hoe, providing leverage support for user operation. The adapter 1 also has a vertical connecting plate 12, a longitudinal connecting plate 13, and a horizontal connecting plate 14, which are mounted on the base plate 11 and can be detachably connected to the connecting pipe 3 after rotation based on the universal joint 2, forming a three-axis spatial coordinate system. This design allows the hoe to flexibly adjust its angle in three-dimensional space, enabling users to select different farming angles and directions to adapt to various operational needs. This multi-directional shovel-axe design has significant market potential and can improve the efficiency and flexibility of agricultural production.

[0029] Specifically, fixed connections can be welded or riveted. Welded connections offer high strength and durability, making them suitable for components bearing heavy workloads, such as the connection between the hoe handle 5 and the base plate 11 of the adapter 1. Riveted connections are suitable for connections subjected to certain stresses, offering good shock resistance and corrosion resistance. Riveting also facilitates partial disassembly and maintenance when needed. Detachable connections can be one of the following: rotary, bolted, or pin-connected. For example, rotary connections use threaded connections, achieving the connection through threaded rotation. This provides good adjustability and stability, suitable for components requiring adjustment and tightening, such as the connection between the hoe handle 4 and the connecting pipe 3. Insertion connections, achieved through insertion and removal, are typically simpler and faster, suitable for components requiring frequent disassembly and assembly. For instance, if the hoe handle 4 is made of wood, it can be inserted into the connecting pipe and further secured with screws. Detachable connections can be bolted or pin-connected. Bolted connections, achieved through bolts and nuts, offer strong fixing capabilities and can be reused, making them suitable for components that require periodic disassembly, such as the connection between the connecting pipe 3 and the vertical connecting plate 12, longitudinal connecting plate 13, or horizontal connecting plate 14. Pin connections, achieved through pins, are quick and convenient, suitable for components that require rapid disassembly and reassembly, thus improving tool efficiency.

[0030] The universal joint 2 consists of an upper hinge seat 21, a conversion block 22, and a lower hinge seat 23. The upper hinge seat 21 is fixedly connected to the connecting pipe 3, allowing the universal joint 2 to be securely connected to the hoe handle 4, ensuring the stability of the hoe handle 4 during use and enabling it to withstand a certain torque. The lower hinge seat 23 is fixedly connected to the adapter seat 1, ensuring the firmness between the hoe head 5 and the adapter seat 1, preventing the hoe head 5 from loosening under stress during operation and ensuring operational safety. The conversion block 22 is spatially cross-hinged with both the upper hinge seat 21 and the lower hinge seat 23. The design of the conversion block 22 is the core of the universal joint 2, allowing for flexible angle adjustments between the upper hinge seat 21 and the lower hinge seat 23. The cross-hinged design allows the hoe head to rotate freely in multiple directions, adapting to different farming needs. Users can quickly adjust the hoe's posture to cope with different working conditions when performing operations such as weeding and loosening soil. To increase the stability and reliability of the structure, this fixed connection mainly adopts a welding connection. By adopting the above-described design, the universal joint, through the combination of upper and lower hinge seats and a conversion block, fully realizes the flexibility and stability of multi-directional shovels and axes. This design not only improves the efficiency of hoe use but also provides users with a more convenient operating experience, meeting the demands of modern agriculture for multi-functional tools.

[0031] The structure of the vertical connecting plate 12, longitudinal connecting plate 13, and transverse connecting plate 14 distributed on the base plate 11 in a spatial three-axis coordinate system is as follows: The base plate 11 serves as the foundation, the vertical connecting plate 12 is vertically mounted on the base plate 11 in the Z-direction, i.e., it is set along the Z-axis direction, while the transverse connecting plate 14 and longitudinal connecting plate 13 are respectively located in the X-direction and Y-direction of the horizontal plane of the base plate 11, i.e., the transverse connecting plate 14 is set along the X-axis direction, and the longitudinal connecting plate 13 is set along the Y-axis direction. The longitudinal connecting plate 13 corresponds to the direction of rotation of the lower hinge seat 23 of the conversion block 22, and the transverse connecting plate 14 corresponds to the direction of rotation of the upper hinge seat 21 of the conversion block 22. A shim 15 is provided between the transverse connecting plate 14 and the base plate 11 to accommodate the height difference of the upper part of the conversion block 22, ensuring the coordination between the components and the normal operation of the functions. Of course, in different examples, the longitudinal connecting plate 13 corresponds to the direction of rotation of the upper hinge seat 21 and the direction of rotation of the conversion block 22, and the transverse connecting plate 14 corresponds to the direction of rotation of the conversion block 22 and the direction of rotation of the lower hinge seat 23. The longitudinal connecting plate 13 is provided with a shim block 15 between itself and the base plate 11, which can also achieve the above purpose.

[0032] In this embodiment, the connecting pipe 3 is provided with at least one set of transverse insertion holes 31 and longitudinal insertion holes 32 arranged in a spatial orthogonal cross structure. This design allows the connecting pipe 3 to be connected to different components (i.e., vertical connecting plate 12, longitudinal connecting plate 13, or transverse connecting plate 14) on the adapter 1, providing flexibility and adjustability. Specifically, the connecting pipe 3 can be selectively fixedly connected to any of the aforementioned plates via connecting bolts 33. Specifically, users can select appropriate insertion holes to achieve the connection according to specific installation requirements and structural requirements, thereby ensuring the stability and reliability between components. This flexible connection method improves the adjustability of the entire structure, enabling it to adapt to different application scenarios and functional requirements. As shown in the figure, this example uses two sets of transverse insertion holes 31 and longitudinal insertion holes 32. The base plate 11, longitudinal connecting plate 13, transverse connecting plate 14, and shim block 15 can also be provided with screw connections, i.e., the insertion holes on the connecting pipe 3 and / or the blind holes of the base plate 11 and shim block 15 are provided with internal threads for screw or bolt thread connections. Of course, in different examples, using only one set is also feasible.

[0033] In this embodiment, the vertical connecting plate 12, longitudinal connecting plate 13, and transverse connecting plate 14 on the adapter 1 are configured with arc-shaped surfaces that fit against the outer wall of the connecting pipe 3 on their corresponding surfaces that contact the connecting pipe 3. This design allows these connecting plates to fit tightly against the outer wall of the connecting pipe 3. The arc-shaped surface not only increases the contact area of ​​the contact surface, thereby enhancing the stability of the connection, but also effectively disperses the stress generated during the connection process, reducing potential wear and damage. In practical applications, this can improve the overall performance and service life of the equipment.

[0034] In this embodiment, the longitudinal connecting plate 13 and / or the transverse connecting plate 14 extending out of the base plate 11 can also serve as footholds when not connected to the connecting pipe 3, facilitating better shoveling and digging operations on harder soil. The base plate 11 and the longitudinal connecting plate 13 can also be configured as a T-shaped integrated structure, with an arc-shaped surface machined on the upper surface of the longitudinal connecting plate 13, which can also achieve the purpose of adjusting the connection relationship of the connecting pipe 3.

[0035] In another embodiment, a clamping plate 16 for holding the hoe 5 is provided below the base plate 11 of the adapter 1, and the clamping plate 16 is fixedly connected to the hoe 5 by bolts or rivets 17. The clamping plate 16 can ensure that the fixed connection between the hoe 5 and the adapter 1 is stable and reliable, and at the same time, it can be disassembled and replaced.

[0036] For example Figure 5As shown, in another embodiment, the vertical connecting plate 12 on the base plate 11 of the adapter structure is replaced by the vertical connecting plate 12 on the connecting tube 3. That is, the vertical connecting plate 12 can rotate with the connecting tube 3, and it can be detachably connected to the lower hinge seat 23 via connecting bolts 33 or screws, thereby achieving a fixed connection between the connecting tube 3 and the base plate 11 in the vertical direction. In this way, by integrating the vertical connecting plate 12 onto the connecting tube 3, the structure of the adapter seat 1 can be simplified. Figure 6 The connector 3 is shown lying sideways on the cross plate 14, while Figure 7 The connecting pipe 3 is then laid forward on the longitudinal connecting plate 13, and then connected and fixed in the corresponding mating screw holes by connecting screws.

[0037] In this embodiment, the base plate 11, the longitudinal connecting plate 13, and the transverse connecting plate 14 are an integral structure, and both the longitudinal connecting plate 13 and the transverse connecting plate 14 are formed by a double bend relative to the base plate 11. The bending process facilitates manufacturing.

[0038] This embodiment also provides a multi-directional shovel axe, comprising a hoe handle 4, a hoe head 5, and the aforementioned adapter structure. The base plate 11 of the adapter structure is connected to the hoe head 5, and the connecting pipe 3 of the adapter structure is connected to the hoe handle 4. The hoe head 5 is trapezoidal in shape, with cutting edges on its bottom and / or sides. This design not only improves the cutting efficiency of the hoe but also enhances its soil-cultivating ability during use, enabling it to be used for large-area digging, trenching, and pit digging. The trapezoidal shape makes it easier for the hoe to cut into the soil, while the cutting edges effectively cut and loosen the soil, improving cultivation results. In addition, the side cutting edge design makes the hoe more flexible and efficient when performing edge treatment or weeding. The hoe head 5 can also be designed as a comb-tooth rake to adapt to different cultivation needs, such as for removing weeds and loosening soil.

[0039] In this multi-directional shovel, the universal joint rotates and acts as a connecting tube, connecting to each plate, allowing the shovel's posture to be adjusted along the X, Y, and Z axes. This design enables users to easily change the shovel's angle and direction according to different farming needs. The connecting tube 3 transmits the force applied to the shovel handle. By rotating the universal joint, the user can rotate the shovel in both vertical and horizontal planes, allowing it to cut into the soil at different angles, thus adapting to various farming tasks. By adjusting the angle of the universal joint, the operator can change the shovel's posture along different axes. Due to this adjustable design, this multi-directional shovel can function effectively in various farming environments, such as flat ground, slopes, or irregular terrain, making it highly adaptable and versatile. In summary, this multi-directional shovel, through its universal joint design, allows the shovel to flexibly adjust its posture, achieving efficient and convenient work results in various farming operations.

[0040] The core technologies of this multi-directional shovel and its adapter structure include:

[0041] 1. Transition structure for a three-axis spatial coordinate system. The adapter 1 is equipped with a vertical connecting plate 12, a longitudinal connecting plate 13, and a transverse connecting plate 14, arranged in a three-axis spatial coordinate distribution (X / Y / Z axes). This, in conjunction with the universal joint 2, enables the hoe 5 to be freely switched and fixed in multiple directions within three-dimensional space. Furthermore, the lateral / longitudinal insertion holes 31 / 32 of the connecting pipe 3 allow for selective connection to the three-axis connecting plates, enabling rapid locking of different tillage postures (such as switching between shovel, hoe, and axe modes).

[0042] 2. Coordinated design of universal joint and three-axis connecting plate. Universal joint 2 is formed by upper hinge seat 21, conversion block 22 and lower hinge seat 23 in a cross-shaped hinge, providing multi-directional rotational freedom; the position layout of the three-axis connecting plate corresponds to the rotation direction of the universal joint (e.g., the longitudinal connecting plate corresponds to the rotation direction of the lower hinge seat, and the transverse connecting plate corresponds to the rotation direction of the upper hinge seat), ensuring that it can be accurately docked and fixed after rotation.

[0043] 3. Detachable multi-functional structure. The connecting pipe 3 and the hoe handle 4 are detachably connected by threads / bolts / pins; a clamping plate 16 is provided under the base plate 11 to fix the hoe head 5 by bolts / rivets 17, which supports the replacement of different functional hoe heads (such as trapezoidal blades or toothed rakes).

[0044] 4. Optimization of curved contact surface and shim block. The contact surface between the three-axis connecting plate and the connecting pipe 3 is a curved surface that fits the outer wall, enhancing connection stability; the shim block 15 compensates for the height difference when the universal joint rotates, ensuring a tight fit between the connecting plate and the connecting pipe.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A connecting structure for a multi-directional shovel axe, used to connect the handle (4) and the head (5) of a multi-directional shovel axe, characterized in that, The adapter structure includes an adapter base (1), a universal joint (2), and a connecting pipe (3). The adapter base (1) has a base plate (11). The bottom of the base plate (11) is used to fix the hoe (5). The universal joint (2) is fixedly connected to the top of the base plate (11). The connecting pipe (3) is fixedly connected to the opposite end of the universal joint (2) away from the base plate (11). The connecting pipe (3) is used to detachably connect the hoe handle (4) to the opposite end of the universal joint (2). The adapter base (1) also has a vertical connecting plate (12), a longitudinal connecting plate (13), and a horizontal connecting plate (14) that are disposed on the base plate (11) and can be detachably connected to the connecting pipe (3) in a free switching manner after rotating based on the universal joint (2) and form a spatial three-axis coordinate system.

2. The adapter structure according to claim 1, characterized in that, The universal joint (2) is composed of an upper hinge seat (21), a conversion block (22) and a lower hinge seat (23). The upper hinge seat (21) is fixedly connected to the connecting tube (3), and the lower hinge seat (23) is fixedly connected to the adapter seat (1). The conversion block (22) is connected to the upper hinge seat (21) and the lower hinge seat (23) in a spatial cross-shaped hinge connection.

3. The adapter structure according to claim 2, characterized in that, The vertical connecting plate (12) is mounted vertically on the base plate (11); the longitudinal connecting plate (13) corresponds to the direction of rotation of the lower hinge seat (23) of the conversion block (22); and the transverse connecting plate (14) corresponds to the direction of rotation of the upper hinge seat (21) of the conversion block (22). Alternatively, the longitudinal connecting plate (13) corresponds to the upper hinge seat (21) in the direction of rotation of the conversion block (22), and the transverse connecting plate (14) corresponds to the conversion block (22) in the direction of rotation of the lower hinge seat (23).

4. The adapter structure according to claim 3, characterized in that, The structure of the vertical connecting plate (12) on the base plate (11) is replaced by the vertical connecting plate (12) on the connecting pipe (3), and the vertical connecting plate (12) can rotate with the connecting pipe (3), and the vertical connecting plate (12) can be detachably connected to the lower hinge seat (23).

5. The adapter structure according to claim 1, characterized in that, The longitudinal connecting plate (13) or the transverse connecting plate (14) is provided with a shim (15) between itself and the base plate (11), and the transverse connecting plate (14) or the longitudinal connecting plate (13) without the shim (15) can form an integral part with the base plate (11).

6. The adapter structure according to claim 1, characterized in that, The base plate (11), longitudinal connecting plate (13) and transverse connecting plate (14) are an integral structure, and the longitudinal connecting plate (13) and transverse connecting plate (14) are formed by a double bend relative to the base plate (11).

7. The adapter structure according to claim 1, characterized in that, The connecting pipe (3) is provided with at least one set of transverse insertion holes (31) and longitudinal insertion holes (32) in a spatial orthogonal cross structure. The connecting pipe (3) is selectively fixedly connected to one of the vertical connecting plate (12), longitudinal connecting plate (13) or transverse connecting plate (14) on the adapter (1) by connecting bolts (33).

8. The adapter structure according to claim 1, characterized in that, The vertical connecting plate (12), longitudinal connecting plate (13) and horizontal connecting plate (14) provided on the adapter (1) are set as arc-shaped surfaces that fit against the outer wall of the connecting pipe (3) on the corresponding surfaces that contact the connecting pipe (3).

9. The adapter structure according to claim 1, characterized in that, The adapter (1) has a clamping plate (16) for holding the hoe (5) below its base plate (11), and the clamping plate (16) is fixedly connected to the hoe (5) by bolts or rivets (17).

10. A multi-directional shovel axe, comprising a handle (4) and a shovel head (5), characterized in that, The application has a connecting structure as described in any one of claims 1-9, wherein the base plate (11) of the connecting structure is used to connect the hoe (5), the connecting pipe (3) of the connecting structure is used to connect the hoe handle (4), the hoe (5) is in the shape of a trapezoidal blade, and a cutting edge is provided at its bottom and / or on its side; or, the hoe (5) is in the shape of a comb rake.

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