Shovel connection structure and multifunctional shovel

Abstract

The present invention provides a shovel connection structure and a multifunctional shovel thereof, relating to the technical field of hand tools. The shovel connection structure includes a shovel head assembly, the shovel head assembly includes a multifunctional turntable, and also includes a turntable connector rotatably connected to the multifunctional turntable. The turntable connector is provided with an angle positioning assembly for controlling the rotation angle of the shovel shaft and a precision positioning assembly for controlling the rotation accuracy of the shovel shaft. The angle positioning assembly of the present invention is used to control the rotation angle of the shovel shaft, and the precision positioning assembly is used to control the rotation accuracy of the shovel shaft. The angle positioning assembly is used to achieve different positioning angles between the shovel head assembly and the turntable connector, for example, to be used as a shovel, planer, pickaxe, shovel, chop or saw. The precision positioning assembly is used to control the rotation accuracy between the turntable connector and the multifunctional turntable. When the turntable connector is installed with the shovel shaft, the shovel shaft can be used as a cannon barrel, further increasing the functionality of the shovel connection structure and reducing the weight of the soldiers when they are marching.

Description

Technical Field

[0001] The present invention relates to the technical field of hand tools, in particular to a shovel connection structure and a multifunctional shovel thereof. Background Art

[0002] As we all know, existing shovels or spades have a simple structure, that is, they are made of a shovel plate and a handle connected by a joint. They are practical and durable and can be used for a long time. However, as a field worker, such as a prospector, a prospector, and especially a frontline soldier of a field force, such as an engineer or scout, they all need to carry a number of hand tools with them, such as shovels, picks, pliers, knives, saws, rulers, etc., plus the necessary luggage backpack, daily necessities and even weapons. It can be said that the burden is heavy and affects the speed of travel. Summary of the Invention

[0003] In view of this, one of the purposes of the present invention is to provide a shovel connection structure to solve the technical problem that the shovels or shovels used in the prior art have a single function, which causes soldiers in the army to carry several hand tools with them, increasing the weight of the soldiers.

[0004] A second object of the present invention is to provide a multifunctional shovel having the above-mentioned shovel link structure.

[0005] In order to achieve one of the above-mentioned purposes, the present invention provides a shovel connection structure, including a shovel head assembly, the shovel head assembly includes a multi-functional turntable, and also includes a turntable connector rotatably connected to the multi-functional turntable, the turntable connector is provided with an angle positioning assembly for controlling the rotation angle of the shovel rod and a precision positioning assembly for controlling the rotation accuracy of the shovel rod.

[0006] According to an optional embodiment, the multifunctional turntable is provided with several angle adjustment holes, the turntable connector is provided with a locking hole, the angle positioning assembly includes an elastic positioning piece, and the elastic positioning piece is built into the locking hole. When the turntable connector rotates, the elastic positioning piece is used to engage with the angle adjustment hole.

[0007] According to an optional embodiment, the angle positioning assembly further includes a positioner for locking the multi-functional turntable, and the positioner is provided on the turntable connector.

[0008] According to an optional embodiment, the positioner includes a positioning pin, a ejector shell, a card and a handwheel, the card is inserted into the positioning pin along the axial direction of the positioning pin, one end of the positioning pin is threadedly connected to the handwheel, the ejector shell is sleeved on the positioning pin, and a spring is sleeved in the gap between the ejector shell and the positioning pin.

[0009] According to an optional embodiment, an external thread is provided on the outer wall of the bullet top shell, which is connected to the turntable connector through the external thread. The end of the bullet top shell facing the handwheel is also provided with a through groove for enabling the positioner to function and a shallow groove for disabling the positioner from functioning.

[0010] According to an optional embodiment, the edge of the multifunctional turntable is provided with convex teeth, and the turntable connector is provided with a ratchet piece adapted to the convex teeth. The ratchet piece is moved close to the multifunctional turntable by the precision positioning assembly and engages with the convex teeth.

[0011] According to an optional embodiment, the precision positioning assembly is installed along the radial direction of the multi-function turntable, and the precision positioning assembly includes a wrench, a cam and a camshaft. The wrench is rotatably mounted on the end of the camshaft, and the cam is sleeved on the middle part of the camshaft. The rotation of the wrench drives the cam to rotate, and the cam is used to move the ratchet.

[0012] According to an optional embodiment, the wrench is provided with a position selector for preventing the wrench from shaking.

[0013] According to an optional embodiment, the edge of the multifunctional turntable is further provided with jaws, nail removal openings and binding jaws.

[0014] In order to achieve the second of the above-mentioned purposes, the present invention provides a multifunctional shovel, including a shovel rod and any of the above-mentioned shovel connecting structures, wherein an external thread is provided on the end of the turntable connector away from the multifunctional turntable, and the shovel rod is connected to the shovel connecting structure through the external thread.

[0015] The shovel connection structure provided by the present invention has the following technical effects:

[0016] This shovel connection structure is mainly composed of a shovel head assembly, an angle positioning assembly and a precision positioning assembly. The shovel head assembly is used to realize the function of the shovel head. It includes a multi-functional turntable and a turntable connector rotatably connected to the multi-functional turntable. The angle positioning assembly and the precision positioning assembly are both installed on the turntable connector. The angle positioning assembly is used to control the rotation angle of the shovel rod, and the precision positioning assembly is used to control the rotation accuracy of the shovel rod. The angle positioning assembly is used to realize different positioning angles between the shovel head assembly and the turntable connector. For example, it can be used as a shovel, planer, pickaxe, shovel, chop or saw. The precision positioning assembly is used to realize the control of the rotation accuracy between the turntable connector and the multi-functional turntable. When the turntable connector is installed with the shovel rod, the shovel rod can be used as a gun barrel, which further increases the use function of the shovel connection structure and reduces the weight of the soldiers when they are marching.

[0017] The multifunctional shovel provided by the present invention has the following technical effects:

[0018] This multifunctional shovel is mainly composed of a shovel rod and a shovel connecting structure. The end of the turntable connector away from the multifunctional turntable is provided with an external thread, and the shovel rod is connected to the shovel connecting structure through the external thread. Since the shovel connecting structure is multifunctional, the shovel of the present invention can also achieve multifunctionality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a structural diagram of a shovel connection structure according to an embodiment of the present invention;

[0021] Figure 2 yes Figure 1 A transverse cross-sectional view of the middle shovel connection structure A;

[0022] Figure 3 yes Figure 1 A longitudinal cross-sectional view of the middle shovel connection structure along the AA direction;

[0023] Figure 4 yes Figure 1 A schematic diagram of the structure of the turntable connector of the middle shovel connection structure;

[0024] Figure 5 yes Figure 4 a longitudinal sectional view of the mid-steering connector;

[0025] Figure 6 yes Figure 4 a transverse cross-sectional view of the mid-steering connector;

[0026] Figure 7 yes Figure 1 A partial cross-sectional view of the angle positioning assembly of the middle shovel connection structure;

[0027] Figure 8 yes Figure 7 Schematic diagram of the structure of the positioning pin and card of the middle angle positioning assembly;

[0028] Figure 9 yes Figure 7 A cross-sectional view of the angular positioning assembly of the middle shovel connection structure in working condition;

[0029] Figure 10 yes Figure 7 A cross-sectional view of the angular positioning assembly of the middle shovel connection structure in a non-operating state;

[0030] Figure 11 yes Figure 1 A partial cross-sectional view of the precision positioning assembly of the middle shovel connection structure;

[0031] Figure 12 yes Figure 11 Side view of the medium-precision positioning assembly;

[0032] Figure 13 It is a structural diagram of the expansion station of the shovel connection structure;

[0033] Figure 14 It is a structural diagram of the 90° workstation of the shovel connection structure;

[0034] Figure 15 This is a schematic diagram of the 45° position of the shovel connection structure;

[0035] Figure 16 This is a structural diagram of the shovel connection structure when the 45° station is turned toward the folding and storage station;

[0036] Figure 17 It is a structural diagram of the folding storage station of the shovel connection structure.

[0037] in, Figures 1-17 :

[0038] 1. Shovel head assembly; 11. Shovel blade; 12. Hammer; 13. Multi-function turntable; 131. Folding and storage position positioning hole; 132. 45° position positioning hole; 133. 90° position positioning hole; 134. Unfolding position positioning hole; 135. Jaws; 136. Nail removal opening; 137. Binding jaws; 138. Protruding teeth;

[0039] 2. Turntable connector; 21. Plug; 22. External thread; 23. Plug port; 24. Rotation hole; 25. Locking hole; 26. Ratchet; 261. Protrusion;

[0040] 3. Angle positioning assembly; 31. Elastic positioning member; 32. Positioner; 321. Positioning pin; 322. Card; 323. Ejector shell; 3231. Shallow groove; 3232. Through groove; 324. Handwheel; 325. Spring;

[0041] 4. Precision positioning assembly; 41. Wrench; 42. Cam; 43. Camshaft; 44. Screw; 45. Selector; 46. Bushing; 47. Washer. DETAILED DESCRIPTION

[0042] To make the objectives, technical solutions, and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without inventive effort are within the scope of protection of the present invention.

[0043] In the description of the present invention, it should be noted that, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] It should also be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention depending on the specific circumstances.

[0045] As described in the background technology, the shovel or spade used in the prior art has a simple structure, that is, it is made of a shovel plate and a handle connected by a joint. It is practical and durable and can be used for a long time. However, as a field worker, such as a prospector, a prospector, and especially a frontline soldier of a field force, such as an engineer, a scout, etc., they all need to carry a number of manual tools with them, such as shovels, picks, pliers, knives, saws, rulers, etc., plus the necessary luggage backpack, daily necessities and even weapons. It can be said that the burden is heavy and affects the speed of travel.

[0046] Based on this, the present invention provides a shovel connection structure, which is mainly composed of a shovel head assembly, an angle positioning assembly and a precision positioning assembly. The shovel head assembly is used to realize the function of the shovel head, which includes a multi-functional turntable and a turntable connector rotatably connected to the multi-functional turntable. The angle positioning assembly and the precision positioning assembly are both installed on the turntable connector. The angle positioning assembly is used to control the rotation angle of the shovel rod, and the precision positioning assembly is used to control the rotation accuracy of the shovel rod. The angle positioning assembly is used to achieve different positioning angles between the shovel head assembly and the turntable connector, for example, it can be used as a shovel, planer, pickaxe, shovel, chop or saw. The precision positioning assembly is used to control the rotation accuracy between the turntable connector and the multi-functional turntable. When the turntable connector is installed with a shovel rod, the shovel rod can be used as a gun barrel, which further increases the use function of the shovel connection structure and reduces the weight of the soldiers when they are marching.

[0047] The following is combined with specific Figure 1-16 The technical solution of the present invention is described in detail.

[0048] The shovel connection structure is a crucial component of the shovel. As a common tool used by troops in a wide range of scenarios, the development of military shovels in my country is gradually improving. Providing troops with higher-quality, more practical shovels and more effectively reducing the load on individual soldiers has become a research and development priority in the shovel industry.

[0049] like Figure 1 As shown, the shovel connection structure of the present invention includes a shovel head assembly 1, a turntable connector 2, an angle positioning assembly 3 and a precision positioning assembly 4.

[0050] Shovel head assembly 1, such as Figure 1 As shown, it includes a shovel plate 11, a small hammer 12 and a multifunctional turntable 13. The shovel plate 11 and the small hammer 12 are welded to the multifunctional turntable 13. The shovel plate 11 is used as a shovel tool, and the small hammer 12 is used as a hammer head.

[0051] The multifunctional turntable 13 is provided with a plurality of angle adjustment holes, such as Figure 13-17 As shown, the angle adjustment holes are respectively a folding and storing station positioning hole 131 , a 45° station positioning hole 132 , a 90° station positioning hole 133 and an unfolding station positioning hole 134 .

[0052] When the shovel connection structure is at 45°, Figure 15 As shown, the multifunctional turntable 13 exposes the jaws 135 and the nail removal opening 136 , thereby increasing the versatility of the shovel connection structure.

[0053] When the shovel connection structure turns from the 45° position to the folding and storing position, Figure 16 As shown, the binding jaws 137135 are exposed on the multifunctional turntable 13, further increasing the versatility of the shovel connection structure.

[0054] Turntable connector 2, such as Figure 1-6 As shown, one end of the turntable connector 2 is connected to the multifunctional turntable 13, and the other end is connected to the shovel handle. Figure 1 As shown, a plug 21 is provided inside the other end of the turntable connector 2, and an external thread 22 is provided on the outer wall. The external thread 22 is used to connect with the shovel handle. The shovel handle here can also be used as a barrel. The end of the turntable connector 2 connected to the multi-functional turntable 13 is designed with an insertion interface 23. Part of the disk body of the multi-functional turntable 13 is inserted into the insertion interface 23. The multi-functional turntable 13 and the turntable connector 2 are provided with matching rotating holes 24 (pin shaft holes). The locking pin shaft passes through the rotating hole 24 to realize the rotational connection between the multi-functional turntable 13 and the shovel handle.

[0055] Angle positioning component 3, used to control the rotation angle of the shovel rod, such as Figure 2 、 7 -10, comprising an elastic positioning member 31 and a positioner 32.

[0056] Elastic positioning member 31, such as Figure 2 As shown, it is preferred that a positioning marble is provided with a spring, a locking hole 25 is provided on the turntable connector 2, and the positioning marble is provided with a spring and is built into the locking hole 25.

[0057] When the turntable connector 2 rotates, the positioning marbles with springs rotate along with the turntable connector 2 on the edge of the multi-function turntable 13. Since the positioning marbles with springs are elastic, when they touch one of the folding and storage position positioning holes 131, the 45° position positioning holes 132, the 90° position positioning holes 133 and the unfolding position positioning holes 134, they are stuck in these angle adjustment holes. When they touch the non-angle adjustment hole position on the multi-function turntable 13, they are compressed into the locking hole 25. The present invention uses the positioning marbles with springs to achieve the initial locking of the turntable connector 2 and the multi-function turntable 13.

[0058] Positioner 32, such as Figure 7-10 As shown, the positioner 32 is installed on the turntable connector 2 to further lock the connection between the multi-function turntable 13 and the turntable connector 2.

[0059] like Figure 7 and Figure 8 As shown, it includes a positioning pin 321, a bullet top shell 323, a card 322 and a handwheel 324. One end of the positioning pin 321 is set as a boss shape, and the other end is provided with a slot along the axial direction. The card 322 is inserted into the slot of the positioning pin 321, and the positioning pin 321, the card 322 and the handwheel 324 are welded.

[0060] The outer wall of the end of the positioning pin 321 with the slot is provided with an external thread, and the hand wheel 324 is provided with an internal thread. The hand wheel 324 is threadedly connected to the positioning pin 321, and the ejector shell 323 is sleeved on the positioning pin 321. The gap between the ejector shell 323 and the positioning pin 321 is sleeved with a spring 325.

[0061] The working principle of the locator 32 is: when the positioning marble with a spring is inserted into one of the folding and storage position positioning holes 131, 45° position positioning holes 132, 90° position positioning holes 133 and unfolding position positioning holes 134, the spring 325 located between the top shell 323 and the positioning pin 321 is in a compressed state, and it has a tendency to reset, driving the positioning pin 321 to move toward the direction of the positioning marble with a spring, and the positioning pin 321 squeezes the positioning marble with a spring, so that it is further inserted into the angle adjustment hole, thereby achieving further locking of the turntable connector 2 and the multi-function turntable 13.

[0062] Further, such as Figure 9 and Figure 10 As shown, an external thread is provided on the outer wall of the ejector shell 323, and the ejector shell 323 is connected to the turntable connector 2 through the external thread. A through groove 3232 and a shallow groove 3231 are also provided on the end of the ejector shell 323 facing the handwheel 324. The through groove 3232 is used when the positioner 32 is in effect, and the shallow groove 3231 is used when the positioner 32 is not in effect.

[0063] The specific principle is as follows: when the card 322 is placed in the through slot 3232, the locator 32 is activated. When the hand wheel 324 is pulled outward, the hand wheel 324, the card 322, and the positioning pin 321 simultaneously move relative to the ejection shell 323. At this time, the turntable connector 2 can rotate at any angle with the multi-function turntable 13. When the pulled hand wheel 324 is rotated 90 degrees, the card 322 is locked into the shallow groove 3231 of the ejection shell 323. At this time, the locator 32 is deactivated.

[0064] The precision positioning component 4 is used to control the rotation accuracy of the shovel rod, such as Figure 11-12 As shown, the precision positioning assembly 4 is installed along the radial direction of the multi-function turntable 13, and includes a wrench 41, a cam 42 and a camshaft 43. The wrench 41 is rotatably installed on the end of the camshaft 43, and the cam 42 is sleeved on the middle part of the camshaft 43. The rotation of the wrench 41 drives the cam 42 to rotate, and the cam 42 is used to move the ratchet part 26.

[0065] The wrench 41 and the camshaft 43 are connected by a screw 44. A sleeve 46 is provided at the end of the camshaft 43 opposite to the wrench 41. The sleeve 46 is sleeved on the camshaft 43. The washer 47 is also sleeved on the camshaft 43. The sleeve 46 is located between the cam 42 and the washer 47. The washer 47 is also fixed by a screw 44.

[0066] In order to prevent the wrench 41 from shaking, a position selector 45 is provided on the wrench 41. Figure 11-12 As shown, the position selector 45 is also a positioning marble sleeved with a spring. When the wrench 41 is rotated to a certain appropriate angle, the position selector 45 is used to brake the wrench 41.

[0067] like Figure 1 As shown, the edge of the multi-function turntable 13 is provided with a convex tooth 138, which occupies approximately one-quarter of the circumference of the entire multi-function turntable 13. A ratchet piece 26 is provided in the turntable connector 2, and the ratchet piece 26 is adapted to the convex tooth 138, that is, the ratchet piece 26 is provided with a convex tip 261 on the side facing the multi-function turntable 13, and the convex tip 261 can be inserted between two adjacent teeth of the convex tooth 138. Since the angle between the two adjacent teeth of the convex tooth 138 is small, for example, generally 2°, when the turntable connector 2 rotates relative to the multi-function turntable 13, a small angle rotation can be achieved. When the shovel rod connected to the turntable connector 2 is used as a barrel, accurate positioning of the shells can be achieved, further improving the versatility of the shovel connection structure.

[0068] When used as a cannon, pull out the locator 32 and turn it to lock it so that the card 322 is stuck in the shallow groove 3231. Pull the wrench 41 of the precision positioning component 4, and the cam 42 rotates on the camshaft 43. The cam 42 pushes the ratchet 26 forward, and the protruding tip 261 of the ratchet 26 pops out from the turntable connector 2. Select the protruding tooth 138 of the multi-function turntable 13 to reach the appropriate firing position. Pull the wrench 41 of the precision positioning component 4 again to lock the firing position.

[0069] When used as a shovel, the wrench 41 of the precision positioning assembly 4 is pulled, and the cam 42 rotates on the cam shaft 43, pushing the cam 42 of the ratchet member 26 forward to convert the contact surface, so that the ratchet returns to the turntable connector 2.

[0070] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A shovel connection structure, comprising a shovel head assembly, characterized in that: The shovel head assembly includes a multifunctional turntable and a turntable connector rotatably connected to the multifunctional turntable, wherein the turntable connector is provided with an angle positioning assembly for controlling the rotation angle of the shovel shaft and a precision positioning assembly for controlling the rotation precision of the shovel shaft; The edge of the multifunctional turntable is provided with convex teeth, and the turntable connector is provided with a ratchet member adapted to the convex teeth. The ratchet member is moved by the precision positioning assembly to approach the multifunctional turntable and engage with the convex teeth. The precision positioning assembly is installed along the radial direction of the multifunctional turntable. The precision positioning assembly includes a wrench, a cam and a camshaft. The wrench is rotatably installed on the end of the camshaft. The cam is sleeved on the middle part of the camshaft. The rotation of the wrench drives the cam to rotate. The cam is used to toggle the ratchet member. The multifunctional turntable is provided with a plurality of angle adjustment holes, the turntable connector is provided with a locking hole, the angle positioning assembly includes an elastic positioning member, the elastic positioning member is built into the locking hole, and when the turntable connector rotates, the elastic positioning member is used to engage with the angle adjustment hole; The angle positioning assembly further includes a positioner for locking the multifunctional turntable, wherein the positioner is provided on the turntable connector; The positioner includes a positioning pin, a ejector shell, a card and a handwheel. The card is inserted into the positioning pin along the axial direction of the positioning pin. One end of the positioning pin is threadedly connected to the handwheel. The ejector shell is sleeved on the positioning pin, and a spring is sleeved in the gap between the ejector shell and the positioning pin.

2. The shovel connection structure according to claim 1, characterized in that: An external thread is provided on the outer wall of the ejector shell, which is connected to the turntable connector through the external thread. The end of the ejector shell facing the hand wheel is also provided with a through groove for enabling the positioner to function and a shallow groove for disabling the positioner from functioning.

3. The shovel connection structure according to claim 1, characterized in that: The wrench is provided with a position selector for preventing the wrench from shaking.

4. The shovel connection structure according to claim 1, characterized in that: The edge of the multifunctional turntable is also provided with a jaw, a nail removing opening and a binding jaw.

5. A multifunctional shovel, characterized in that: It includes a shovel rod and a shovel connecting structure according to any one of claims 1 to 4. An external thread is provided on one end of the turntable connecting body away from the multifunctional turntable, and the shovel rod is connected to the shovel connecting structure through the external thread.

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