A hinge, removable vehicle door and skid loader

Abstract

The present application provides a kind of hinge, removable vehicle door and sliding loader.The hinge includes cab base, hinge shaft, hinge leaf, door base and handle;The cab base is fixedly connected with the cab, and is further rotatably connected with the hinge leaf by the hinge shaft;The hinge leaf can be detachably connected with the door base by detachable mechanism;The door base is used to fixedly connect the door;The detachable mechanism includes handle, handle limiting block, limiting slot arranged on the door base and limiting boss arranged on the hinge leaf;Through hole is arranged in the door base, and the handle is connected with the limiting boss by the handle limiting block penetrating the through hole;The hinge meets the needs of efficient disassembly under the complex working condition of sliding loader, ensures the rapid access of personnel under the working condition, and the appearance is beautiful, increases product quality.

Description

Technical Field

[0001] This invention belongs to the technical field of skid steer loaders for construction machinery, specifically relating to a hinge, a removable door, and a skid steer loader. Background Technology

[0002] The market demand for skid steer loaders is gradually increasing, and application scenarios are constantly expanding, leading to increasingly higher requirements for loader design. However, the design of skid steer loader doors suffers from insufficient safety, and issues such as the inability to quickly remove the doors from the cab in special working conditions or in the event of a rollover, and inconvenience in entering and exiting the cab.

[0003] Disadvantages of existing technology:

[0004] (1) The doors are not removable, making it inconvenient for operators to enter and exit under special working conditions;

[0005] (2) The door disassembly process is complicated and not conducive to quick disassembly;

[0006] (3) The disassembly mechanism is complex and difficult to manufacture. Summary of the Invention

[0007] The purpose of this invention is to overcome the shortcomings of the prior art and provide a hinge, a removable door and a skid steer loader to solve the problem that the door cannot be quickly removed from the cab when special working conditions or rollover occurs.

[0008] To solve the above-mentioned technical problems, the present invention is implemented using the following technical solution:

[0009] In a first aspect, the present invention provides a hinge, including a cab base, a hinge shaft, a hinge leaf, and a door base;

[0010] The cab base is fixedly connected to the cab and rotatably connected to the hinge leaf via a hinge shaft;

[0011] The hinge page can be detachably connected to the door base via a detachable mechanism;

[0012] The door base is used to fix and connect the door;

[0013] The detachable mechanism includes a handle, a handle limiting block, and a limiting boss provided on the hinge page;

[0014] The door base has a through hole, and the handle is connected to the limiting boss through a handle limiting block that passes through the through hole.

[0015] The handle limiting block is provided with a limiting protrusion at one end near the limiting boss; the limiting boss is provided with an inner groove that can accommodate the rotation of the handle limiting block and a baffle for closing the inner groove, and the baffle is provided with a limiting hole that matches the shape of the end of the handle limiting block.

[0016] The handle can drive the handle limiting block to move and rotate along the axis of the through hole, thereby driving the limiting protrusion to enter or exit the inner groove through the limiting hole.

[0017] The above setup achieves the following effect: When it is necessary to separate the door from the cab, turn the handle to rotate the handle limit block, so that the limit protrusion of the handle limit block rotates to match the shape of the limit hole. Pull the handle outward to drive the limit protrusion out of the limit hole and out of the inner groove of the limit boss, thereby separating the door base from the hinge, and thus separating the cab from the door.

[0018] When it is necessary to assemble the door with the cab, turn the handle to rotate the handle limit block, so that the limiting protrusion of the handle limit block rotates to match the shape of the limiting hole. Push the handle inward to drive the limiting protrusion from the limiting hole into the inner groove of the limiting boss. Then turn the handle again to lock the limiting protrusion in the inner groove, so that the door base is fixedly connected to the hinge, and the cab and the door are assembled together.

[0019] The hinge structure is simple, easy to manufacture, and convenient to operate and disassemble. Meanwhile, the limiting hole is located inside the hinge leaf, completely enclosing the handle limiting block and preventing it from being exposed. This results in an aesthetically pleasing design that aligns with the cab and overall machine design, enhancing the product's perceived quality.

[0020] Furthermore, one end of the cab base is fixedly mounted on the cab by bolts, and the other end is provided with a shaft hole that can accommodate the hinge shaft. The cab base is rotatably connected to the hinge leaf through the hinge shaft.

[0021] The above setup achieves the following effect: the cab base can be firmly fixed next to the cab door opening, providing stable support for the door.

[0022] Furthermore, the door base includes two clips for clamping on both sides of the door and a mounting plate connected to the clip near the hinge page.

[0023] Both the clamp and the mounting plate are provided with through bolt holes for fixed connection to the vehicle door by bolts;

[0024] The mounting plate has a limiting groove on the side near the hinge page that matches the shape of the limiting boss.

[0025] The above settings achieve the following effect: the shape of the limiting groove and the limiting boss are matched to limit the range of motion of the handle limiting block and the limiting hole, thereby enabling the handle limiting block to be positioned into the limiting hole more quickly and accurately.

[0026] Furthermore, the handle limiting block is fitted with an elastic sleeve between the handle and the door base.

[0027] The above setup achieves the following effects: the elastic sleeve has a certain degree of elasticity, preferably a rubber sleeve. Rotating the handle upward causes the handle limiting block to rotate, compressing the rubber sleeve between the handle and the handle limiting block, causing the limiting protrusion to extend into the inner groove and lock, thus fixing the door. Rotating the handle downward causes the handle limiting block to rotate, releasing the rubber sleeve between the handle and the handle limiting block, allowing the handle limiting block to match the limiting hole inside the hinge page, thus disassembling the door.

[0028] In a second aspect, the present invention provides a removable vehicle door, including a cab frame, a door, and a hinge as described in the first aspect;

[0029] The cab frame is connected to the door via the hinges.

[0030] The above setup achieves the following effects: the hinges allow for easy and quick removal of the vehicle door, meeting the needs of personnel entering and exiting under special working conditions, facilitating flexible operation in various construction situations, and improving the safety of operators.

[0031] Further details: The removable door also includes a windshield and a sealing strip mounted on the cab frame; the sealing strip is fixed to the periphery of the windshield to seal the windshield.

[0032] Further feature: The removable door also includes a handle lock mounted on the windshield for securing the relative positions of the windshield and the cab frame.

[0033] Furthermore, the removable door also includes a wiper system fixed to the bottom of the windshield.

[0034] Furthermore, the removable door also includes a safety grab bar three fixed to the windshield.

[0035] Furthermore, the cab frame includes a top frame, a first protective net frame, a front frame, a floor frame, a rear frame, and a second protective net frame.

[0036] The top frame, guardrail frame one, front frame, bottom plate frame, rear frame, and guardrail frame two are connected to each other by bolts or welding; the top frame is set on the top of the cab frame, the bottom plate frame is set on the bottom of the cab frame, and the guardrail frame one, front frame, rear frame, and guardrail frame two surround the sides of the cab frame, and each of them is connected to the top frame at the top end and to the bottom plate frame at the bottom end;

[0037] The front frame is provided with a doorway for entering and exiting the driver's cab;

[0038] The front frame is provided with bolt holes for mounting the hinges, and the door is fixed to the front frame by the hinges.

[0039] A rotating alarm light is installed above the top frame;

[0040] A hoisting opening is provided above the top frame;

[0041] Safety handrail one and safety handrail two are respectively provided on both sides of the front frame;

[0042] The front frame is formed by a stamping process.

[0043] Thirdly, the present invention provides a skid steer loader including a removable door as described in the second aspect.

[0044] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0045] (1) The present invention provides a hinge suitable for skid steer loaders; skid steer loaders are small in size, have multiple operating functions, and operate in a variety of environments with complex working conditions. The frame structure can affect safety and working visibility; the hinge improves the removability of the door, making it easier for the driver to enter and exit, and improving comfort; the door has an aesthetically pleasing design.

[0046] (2) The door structure provided by the present invention has a simple process and a high degree of batch production, which is conducive to improving production efficiency;

[0047] (3) The door provided by the present invention has a detachable function, which meets the needs of personnel entering and exiting under special working conditions and enhances the competitiveness of the product;

[0048] (4) The hinge provided by the present invention can be quickly disassembled and assembled, ensuring rapid entry and exit under special working conditions and improving product safety. Attached Figure Description

[0049] Figure 1 Perspective view of the driver's cab;

[0050] Figure 2 Perspective view of the cab frame;

[0051] Figure 3 Perspective view of the car door;

[0052] Figure 4 This is a perspective view of the hinge.

[0053] Figure 5 This is an exploded view of the hinge.

[0054] In the diagram: 1. Cab frame; 2. Rubber strip; 3. Windshield; 4. Handle lock; 5. Safety grab handle one; 6. Work light; 7. Rotary alarm light; 8. Lifting port; 9. Side window; 10. Door; 11. Safety grab handle two; 12. Hinge; 13. Wiper system; 14. Top frame; 15. Protective net frame one; 16. Front frame; 17. Floor frame; 18. Door opening; 19. Rear frame; 20. Protective net frame two; 21. Handle; 22. Safety grab handle three; 23. Cab base; 24. Hinge shaft; 25. Hinge leaf; 26. Door base; 27. Handle; 28. Handle limit block; 29. ​​Limiting boss; 30. Elastic sleeve; 31. Limiting hole; 32. Limiting groove; 33. Inner groove; 34. Baffle; 35. Limiting protrusion; 36. Through hole. Detailed Implementation

[0055] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0056] In the description of this embodiment, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this embodiment 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. Therefore, they should not be construed as limitations on this embodiment. Example 1:

[0057] like Figure 4 and Figure 5 As shown, this embodiment provides a hinge 12, including a cab base 23, a hinge shaft 24, a hinge leaf 25, and a door base 26;

[0058] The cab base 23 is fixedly connected to the cab and rotatably connected to the hinge page 25 via the hinge shaft 24;

[0059] The hinge page 25 can be detachably connected to the door base 26 via a detachable mechanism;

[0060] The door base 26 is used to fix the door 10 in place;

[0061] The detachable mechanism includes a handle 27, a handle limiting block 28, and a limiting boss 29 provided on the hinge page 25.

[0062] The door base 26 has a through hole 36, and the handle 27 is connected to the limiting boss 29 through a handle limiting block 28 that passes through the through hole 36.

[0063] The handle limiting block 28 is provided with a limiting protrusion 35 at one end near the limiting protrusion 29; the limiting protrusion 29 is provided with an inner groove 33 that can accommodate the rotation of the handle limiting block 28 and a baffle 34 for closing the inner groove 33, and the baffle 34 is provided with a limiting hole 31 that matches the shape of the end of the handle limiting block 28.

[0064] The handle 27 can drive the handle limiting block 28 to move and rotate along the axis of the through hole 36, thereby driving the limiting protrusion 35 to enter or exit the inner groove 33 through the limiting hole 31.

[0065] Implementation principle: When it is necessary to separate the door 10 from the cab, turn the handle 27 to drive the handle limiting block 28 to rotate, so that the limiting protrusion 35 of the handle limiting block 28 rotates to match the shape of the limiting hole 31. Pull the handle 27 outward to drive the limiting protrusion 35 out of the limiting hole 31 and out of the inner groove 33 of the limiting boss 29, so that the door base 26 is separated from the hinge 25, thereby separating the cab from the door 10.

[0066] When it is necessary to assemble the door 10 with the cab, turn the handle 27 to rotate the handle limiting block 28, so that the limiting protrusion 35 of the handle limiting block 28 rotates to match the shape of the limiting hole 31. Push the handle 27 inward to drive the limiting protrusion 35 from the limiting hole 31 into the inner groove 33 of the limiting boss 29. Then turn the handle 27 again to lock the limiting protrusion 35 in the inner groove 33, so that the door base 26 is fixedly connected to the hinge page 25, thereby assembling the cab frame 1 and the door 10 together.

[0067] The hinge 12 has a simple structure, is easy to manufacture, and is convenient to operate and disassemble. At the same time, the limiting hole 31 is located inside the hinge page 25, which can completely cover the handle limiting block 28, preventing the handle limiting block 28 from being exposed. It has an aesthetically pleasing appearance, which can be consistent with the design style of the cab and the whole machine, and enhance the quality of the product.

[0068] Specifically, one end of the cab base 23 is fixedly mounted on the cab with bolts, and the other end is provided with a shaft hole that can accommodate the hinge shaft 24. The cab base 23 is rotatably connected to the hinge leaf 25 through the hinge shaft 24. The cab base 23 can be firmly fixed next to the door opening 18 of the cab, providing stable support for the fixation of the door 10.

[0069] Specifically, the door base 26 includes two clamping pieces for clamping on both sides of the door 10 and a mounting plate connected to the clamping piece near the hinge page 25.

[0070] Both the clamp and the mounting plate are provided with through bolt holes for fixed connection to the door 10 by bolts;

[0071] The mounting plate has a limiting groove 32 on the side near the hinge page 25 that matches the shape of the limiting boss 29.

[0072] The shape of the limiting groove 32 and the limiting boss 29 are matched to limit the range of motion of the handle limiting block 28 and the limiting hole 31, so that the handle limiting block 28 can be positioned in the limiting hole 31 more quickly and accurately.

[0073] like Figure 5 As shown, the shape of the limiting groove 32 and the limiting boss 29 is preferably key-shaped, which facilitates precise positioning and has a good locking effect. Other shapes can also be used as long as they can achieve the same locking effect.

[0074] Preferably, the handle limiting block 28 is fitted with an elastic sleeve 30 between the handle 27 and the door base 26.

[0075] The elastic sleeve 30 has a certain elasticity and can preferably be a rubber sleeve. Rotating the handle 27 upward causes the handle limiting block 28 to rotate, compressing the rubber sleeve between the handle 27 and the handle limiting block 28, so that the limiting protrusion 35 extends into the inner groove 33 and locks it, thereby fixing the door 10. Rotating the handle 27 downward causes the handle limiting block 28 to rotate, releasing the rubber sleeve between the handle 27 and the handle limiting block 28. The handle limiting block 28 matches the limiting hole 31 inside the hinge page 25, thereby disassembling the door 10. Example 2:

[0076] This embodiment provides a removable vehicle door, such as Figure 1 As shown, the vehicle includes a cab frame 1, a door 10, and a hinge 12 as described in Embodiment 1; the cab frame 1 and the door 10 are connected by the hinge 12. The hinge 12 allows for easy and quick removal of the door 10, meeting the needs of personnel entry and exit under special working conditions, facilitating flexible operation in various construction situations, and improving operator safety.

[0077] like Figure 1 As shown, the cab frame 1 and the door 10 are connected by at least two hinges 12 to ensure installation stability.

[0078] The removable door also includes the cab frame 1, rubber strip 2, windshield 3, handle lock 4, wiper system 13, and other components not shown, such as tires. The rubber strip 2 is fixed to the perimeter of the windshield 3 for sealing; the handle lock 4 is fixed to one side of the windshield 3 for opening and locking the door 10; the wiper system 13 is fixed to the bottom of the windshield 3 for wiping rain; and the safety grab handle 3 22 is fixed to the windshield 3 via hinges 12, wiper system 13, and handle lock 4.

[0079] Specifically, the cab frame 1 includes a top frame 14, a first protective net frame 15, a front frame 16, a floor frame 17, a rear frame 19, and a second protective net frame 20.

[0080] The top frame 14, the first protective net frame 15, the front frame 16, the bottom plate frame 17, the rear frame 19, and the second protective net frame 20 are connected to each other by bolts or welding. The top frame 14 is located on the top of the cab frame 1, the bottom plate frame 17 is located at the bottom of the cab frame 1, and the first protective net frame 15, the front frame 16, the rear frame 19, and the second protective net frame 20 surround the sides of the cab frame 1, and are all connected to the top frame 14 at their top ends and to the bottom plate frame 17 at their bottom ends.

[0081] The front frame 16 is formed by stamping, the door 10 is fixed to the front frame 16 by hinges 12, and the safety handrail 15 and the safety handrail 21 are welded to both sides of the front frame 16 respectively.

[0082] The rotating alarm light 7 and the hoisting port 8 are fixedly connected to the top frame 14; the first protective net frame 15 and the second protective net frame 20 are fixedly connected to the left and right sides of the top frame 14; the front frame 16 and the rear frame 19 are fixedly connected to the front and rear sides of the top frame 14; the bottom plate frame 17 is fixedly connected to the bottom of the front frame 16, the rear frame 19, the first protective net frame 15, and the second protective net frame 20; the first safety handrail 5 and the second safety handrail 11 are fixedly connected to the front frame 16; the door opening 18 is located on the front frame 16 and is used for entering and exiting the cab.

[0083] like Figure 2 As shown, the cab frame 1 is constructed by sheet metal welding and mainly consists of a top frame 14, a guardrail frame one 15, a front frame 16, a floor frame 17, a door opening 18, a rear frame 19, and a guardrail frame two 20. The front frame 16 is formed by stamping, resulting in a high-strength structure and good safety. The door 10 is fixed to the front frame 16 by hinges 12, and safety grab handle one 5 and safety grab handle two 11 are welded to both sides of the front frame 16.

[0084] like Figure 1 , 3As shown, under normal circumstances, the operator needs to press the handle lock 4 to open the door 10 and enter the cab through the doorway 18 to start work; to leave the cab, the operator needs to press the handle 21 to open the door 10 and exit through the doorway 18. In special circumstances, if the door 10 is restricted or cannot be opened, the operator needs to directly remove the door 10 from inside the cab to exit, ensuring the operator's safe and rapid exit. The hinge 12 for removing the door 10 connects the cab and the door 10 with bolts. The door 10 achieves the function of fixing and removing the door 10 through the locking and engagement of the hinge 12. The door 10 mainly includes: windshield 3, rubber strip 2, handle lock 4, wiper system 13, hinge 12, and safety grab bar 22. The handle 21 is installed inside the door 10.

[0085] like Figure 4 , 5 As shown, the hinge 12 provided by the present invention can be quickly disassembled from the inside, preventing the operator from being trapped if the door 10 cannot be opened in special circumstances. The hinge 12 mainly includes: a cab base 23, a hinge shaft 24, a hinge leaf 25, a door base 26, and a handle 27. The cab base 23 is fixed to the cab with bolts on one side and connected to the hinge page 25 via the hinge shaft 24 on the other side. The handle 27 is connected to the door base 26 via the handle limiting block 28, and the door base 26 is fixed to the windshield 3 of the door 10 with bolts. The limiting groove 32 matches the limiting boss 29, which can limit the range of motion of the handle limiting block 28 and the limiting hole 31, so that the handle limiting block 28 can be positioned more quickly and accurately into the limiting hole 31. Rotating the handle 27 upward causes the handle limiting block 28 to rotate, compressing the rubber sleeve between the handle 27 and the handle limiting block 28, locking it with the limiting groove 32 inside the hinge page 25, thus fixing the door 10. Rotating the handle 27 downward causes the handle limiting block 28 to rotate, releasing the rubber sleeve between the handle 27 and the handle limiting block 28, and the handle limiting block 28 matches the limiting hole 31 inside the hinge page 25, thus disassembling the door 10. Among them, the limiting boss 29 is machined, which has high precision, good strength and good matching.

[0086] Example 3:

[0087] This embodiment provides a skid steer loader, including a removable door as described in Embodiment 2.

[0088] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature, and in the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0089] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 invention according to the specific circumstances.

[0090] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0091] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0092] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.

Claims

1. A hinge, characterized in that, This includes the cab base, hinge shaft, hinge leaf, and door base; The cab base is used to be fixedly connected to the cab and rotatably connected to the hinge page via a hinge shaft; The hinge page can be detachably connected to the door base via a detachable mechanism; The door base is used to fix and connect the door; The detachable mechanism includes a handle, a handle limiting block, and a limiting boss provided on the hinge page; The door base has a through hole, and the handle is connected to the limiting boss through a handle limiting block that passes through the through hole. The handle limiting block is provided with a limiting protrusion at one end near the limiting boss; the limiting boss is provided with an inner groove that can accommodate the rotation of the handle limiting block and a baffle for closing the inner groove, and the baffle is provided with a limiting hole that matches the shape of the end of the handle limiting block. The handle can drive the handle limiting block to move and rotate along the axis of the through hole, thereby driving the limiting protrusion to enter or exit the inner groove through the limiting hole; The door base includes two clips for clamping on both sides of the door and a mounting plate connected to the clips near the hinge page. Both the clamp and the mounting plate are provided with through bolt holes for fixed connection to the vehicle door by bolts; The mounting plate has a limiting groove on the side near the hinge page that matches the shape of the limiting boss; The handle limiting block is fitted with an elastic sleeve between the handle and the door base.

2. The hinge according to claim 1, characterized in that, One end of the cab base is fixedly mounted on the cab with bolts, and the other end is provided with a shaft hole that can accommodate the hinge shaft. The cab base is rotatably connected to the hinge leaf through the hinge shaft.

3. A removable vehicle door, characterized in that, Includes a cab frame, doors, and hinges as described in any one of claims 1-2; The cab frame is connected to the door via the hinges; The cab frame includes a top frame, a first protective net frame, a front frame, a floor frame, a rear frame, and a second protective net frame. The top frame, guardrail frame one, front frame, bottom frame, rear frame, and guardrail frame two are connected to each other by bolts or welding. The top frame is located on the top of the cab frame, the bottom frame is located at the bottom of the cab frame, and the guardrail frame one, front frame, rear frame, and guardrail frame two surround the sides of the cab frame, with their top ends connected to the top frame and their bottom ends connected to the bottom frame.

4. The removable vehicle door according to claim 3, characterized in that, The removable door also includes a windshield and a sealing strip mounted on the cab frame; the sealing strip is fixed to the periphery of the windshield to seal the windshield.

5. The removable vehicle door according to claim 4, characterized in that, The removable door also includes a handle lock mounted on the windshield for securing the relative positions of the windshield and the cab frame.

6. The removable vehicle door according to claim 3, characterized in that, The front frame is provided with a doorway for entering and exiting the driver's cab; The front frame is provided with bolt holes for mounting the hinges, and the door is fixed to the front frame by the hinges. A hoisting opening is provided above the top frame.

7. A skid steer loader, comprising a removable door as described in any one of claims 3-6.

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