Elbow support adjusting mechanism, elbow support and forklift

Abstract

The embodiment of the specification relates to the technical field of forklifts, in particular to an elbow support adjusting mechanism, an elbow support and a forklift. An elbow support adjusting mechanism comprises an adjusting screw rod which comprises a rod body with threads arranged on the peripheral side and a supporting body connected with the rod body; the adjusting plate comprises a main plate body; the main plate body is provided with a first through hole allowing the rod body to penetrate but not allowing the supporting body to penetrate, and the supporting body is arranged below the main plate body. The bottom plate comprises a bottom plate body and a hinged plate connected with the bottom of the bottom plate body; a second through hole allowing the rod body to penetrate through is formed in the bottom plate body; the main plate body is hinged to the bottom plate body; the supporting rod is provided with a threaded hole in threaded connection with the rod body, and the axial end of the supporting rod is hinged to the hinge plate. According to the elbow support adjusting mechanism, through the arrangement of the adjusting screw rod, the adjusting plate, the bottom plate and the supporting rod, the height position of the elbow support can be adjusted according to the height and habits of a driver, and then the use comfort of the elbow support is improved.

Description

Technical Field

[0001] The embodiments of the present specification relate to the technical field of forklifts, and specifically to an elbow rest adjustment mechanism, an elbow rest, and a forklift. Background Art

[0002] A stand-on forklift is a forklift that the driver operates while standing on the driver's seat. The driver's seat of a stand-on forklift is simple in design, occupies little space, and is flexible to operate in narrow passages and warehouses. Compared with a sit-on forklift, a stand-on forklift is more convenient to get on and off. The driver can leave the driver's seat at any time without having to stand up or open the door, making it suitable for work environments where frequent boarding and alighting operations are required.

[0003] In order to improve the driving comfort of the driver, the existing technology will equip the stand-up forklift with an elbow rest. However, the existing elbow rests are mostly fixed and cannot be adjusted according to the height and habits of the driver. Therefore, for some drivers, the elbow rest is not very comfortable to use. Utility Model Content

[0004] In view of the shortcomings of the prior art, the embodiments of this specification propose an elbow support adjustment mechanism, including:

[0005] The adjusting screw comprises a rod body with threads on the outer circumference, and a supporting body connected to the rod body;

[0006] The adjusting plate comprises a main plate body; the main plate body is provided with a first through hole that allows the rod body to pass through but does not allow the support body to pass through, and the support body is arranged below the main plate body;

[0007] The bottom plate comprises a bottom plate body and a hinged plate connected to the bottom of the bottom plate body; the bottom plate body is provided with a second through hole for allowing the rod body to pass through; and the main plate body is hinged to the bottom plate body;

[0008] The support rod is provided with a threaded hole threadedly connected to the rod body, and the axial end of the support rod is hinged to the hinge plate.

[0009] Preferably, the adjusting screw further comprises:

[0010] A circumferential limiting rod is connected to the rod body, and the circumferential limiting rod is arranged along the radial direction of the rod body, and the circumferential limiting rod is arranged above the support body;

[0011] The main plate body is also provided with a circumferential limiting groove on the circumferential side of the first through hole for allowing the circumferential limiting rod to enter.

[0012] Preferably, an auxiliary rotation groove is provided at the axial top end of the rod body.

[0013] Preferably, the elbow support adjustment mechanism further comprises:

[0014] The adjusting nut comprises a nut body threadedly connected to the axial top end of the rod body, an auxiliary rotating plate arranged at one axial end of the nut body and assembled and connected to the auxiliary rotating groove, and a finger pinching plate arranged on the peripheral side of the nut body.

[0015] Preferably, the adjustment plate further comprises a secondary plate connected to the long side of the main plate and arranged perpendicularly to the main plate, and the secondary plate is provided with a first hinge hole;

[0016] The base plate also includes a hinge shaft connected to the long side of the base plate body, and the hinge shaft is assembled and connected with the first hinge hole.

[0017] Preferably, an axial limit groove is provided on the outer peripheral side of the support rod, and a second hinge hole is provided on the hinge plate for assembly and connection with the axial limit groove.

[0018] Preferably, the top surface of the support body is arranged in an arc shape.

[0019] Preferably, the adjustment plate is further provided with an elbow support pad connection hole; and the bottom plate is further provided with a bottom plate fixing hole.

[0020] The embodiment of the present specification also proposes an elbow rest, which includes the above-mentioned elbow rest adjustment mechanism and also includes an elbow rest pad connected to the top of the adjustment plate.

[0021] The embodiment of this specification also provides a forklift, comprising the above-mentioned elbow rest.

[0022] Beneficial Effects

[0023] The elbow rest adjustment mechanism of the embodiment of the present specification can adjust the height of the elbow rest according to the height and habits of the driver by setting the adjusting screw, the adjusting plate, the bottom plate and the supporting rod, thereby improving the comfort of the elbow rest.

[0024] Further or more detailed beneficial effects will be described in detail in conjunction with specific examples in the specific implementation manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of the elbow support adjustment mechanism in the embodiment of this specification;

[0026] Figure 2 This is a schematic diagram of the dispersed structure of the elbow support adjustment mechanism in the embodiment of this specification;

[0027] Figure 3 This is a schematic diagram of the structure of the adjusting nut in the embodiment of this specification;

[0028] Figure 4 This is a schematic diagram of the structure of the adjusting screw in the embodiment of this specification;

[0029] Figure 5This is a schematic diagram of the structure of the adjustment plate in the embodiment of this specification;

[0030] Figure 6 This is a schematic diagram of the structure of the bottom plate in the embodiment of this specification;

[0031] Figure 7 Schematic diagram of the structure of the support rod in the embodiment of this specification. DETAILED DESCRIPTION

[0032] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0033] Embodiment 1:

[0034] like Figure 1 , Figure 2 As shown, this embodiment provides an elbow support adjustment mechanism, comprising: an adjustment screw 100, an adjustment plate 300, a bottom plate 400 and a support rod 500. The elbow support adjustment mechanism can be used to adjust the height position of the elbow support.

[0035] like Figure 4 As shown, the adjusting screw rod 100 includes a rod body 110 with threads on the outer circumference, and a supporting body 120 connected to the rod body 110 .

[0036] The support body 120 is sleeved on the rod body 110 and is integrally formed with the rod body 110 .

[0037] like Figure 5 As shown, the adjustment plate 300 includes a main plate body 310 . The main plate body 310 is provided with a first through hole 311 that allows the rod body 110 to pass through but does not allow the support body 120 to pass through, and the support body 120 is disposed below the main plate body 310 .

[0038] The portion of the rod body 110 located above the support body 120 passes through the first through hole 311, and the support body 120 can abut against the bottom of the main body 310. When the rod body 110 moves upward, the support body 120 can drive the main body 310 to move upward together.

[0039] like Figure 6 As shown, the bottom plate 400 includes a bottom plate body 410 and a hinge plate 430 connected to the bottom of the bottom plate body 410. The bottom plate body 410 is provided with a second through hole 411 for allowing the rod body 110 to pass through. The main plate body 310 is hinged to the bottom plate body 410.

[0040] The base plate body 410 is fixedly connected to the forklift. The first lengthwise end of the main plate body 310 is hinged to the first lengthwise end of the base plate body 410, so that the main plate body 310 can rotate around the first lengthwise end of the base plate body 410. The first through hole 311 is provided at the main plate body 310 near the second lengthwise end of the main plate body 310, and the first through hole 311 can be circular. The second through hole 411 is provided at the base plate body 410 near the second lengthwise end of the base plate body 410, and the part of the rod body 110 located below the support body 120 passes through the second through hole 411, and the second through hole 411 can be long and strip-shaped, so that the rod body 110 can be tilted in the second through hole 411.

[0041] When the rod body 110 moves upward, the support body 120 can drive the second length direction end of the main body 310 to move upward together, and at the same time, the first length direction end of the main body 310 can rotate around the first length direction end of the bottom plate body 410. The more the rod body 110 moves upward, the greater the inclination of the rod body 110, and the second through hole 411 allows the rod body 110 to tilt during the upward movement.

[0042] There are two hinge plates 430 , which are symmetrically arranged on both sides of the second through hole 411 .

[0043] like Figure 7 As shown, the support rod 500 is provided with a threaded hole 510 threadedly connected to the rod body 110 , and the axial end of the support rod 500 is hinged to the hinge plate 430 .

[0044] The rod body 110 passes through the threaded hole 510 of the support rod 500 and is threadedly connected with the threaded hole 510. When the rod body 110 rotates in a clockwise direction, the rod body 110 moves upward relative to the support rod 500; when the rod body 110 rotates in a counterclockwise direction, the rod body 110 moves downward relative to the support rod 500.

[0045] In addition, the support rod 500 can rotate relative to the hinge plate 430. When the rod body 110 moves upward relative to the support rod 500, the rod body 110 also tilts, and the tilt of the rod body 110 drives the support rod 500 to rotate adaptively. That is, the support rod 500 is hinged to the hinge plate 430, which allows the rod body 110 to tilt during the upward movement.

[0046] Specific working principle:

[0047] When the forklift driver feels that the elbow support is too low and needs to be raised, he rotates the rod body 110 clockwise. When the rod body 110 rotates clockwise, the extension length of the rod body 110 relative to the support rod 500 becomes longer, and the inclination of the rod body 110 relative to the support rod 500 becomes larger. The support rod 500 is hingedly arranged with the hinge plate 430 and the second through hole 411 is arranged in a long strip shape, so that the rod body 110 can be tilted and then can be extended relative to the support rod 500. When the extension length of the rod body 110 relative to the support rod 500 becomes longer, the overall position of the support body 120 becomes higher, thereby making the second length direction end of the adjustment plate 300 higher, and the first length direction end of the adjustment plate 300 is adaptively rotated around the first length direction end of the bottom plate body 410. When the second length direction end of the adjustment plate 300 reaches a suitable height, the rotation of the rod body 110 is stopped, and at this time, the elbow support is adjusted to a suitable height position. In this way, the forklift driver will feel more comfortable when using the elbow support.

[0048] When the forklift driver feels that the elbow rest is too high and needs to lower it, he rotates the rod body 110 counterclockwise. When the rod body 110 rotates counterclockwise, the extended length of the rod body 110 relative to the support rod 500 becomes shorter, and at the same time, the inclination of the rod body 110 relative to the support rod 500 becomes smaller. When the extended length of the rod body 110 relative to the support rod 500 becomes shorter, the overall position of the support body 120 becomes lower, thereby lowering the second length direction end of the adjustment plate 300. When the second length direction end of the adjustment plate 300 reaches a suitable height, the rotation of the rod body 110 is stopped, and at this time, the elbow rest is adjusted to a suitable height position. In this way, the forklift driver will feel more comfortable when using the elbow rest.

[0049] The elbow rest adjustment mechanism of this embodiment, by setting the adjustment screw 100, the adjustment plate 300, the base plate 400 and the support rod 500, enables the height position of the elbow rest to be adjusted according to the height and habits of the driver, thereby improving the comfort of use of the elbow rest.

[0050] Further, such as Figure 4 As shown, the adjusting screw 100 of this embodiment further includes: a circumferential limiting rod 130 .

[0051] The circumferential limiting rod 130 is connected to the rod body 110 , and the circumferential limiting rod 130 is arranged along the radial direction of the rod body 110 , and the circumferential limiting rod 130 is arranged above the support body 120 .

[0052] The main body 310 is further provided with a circumferential limiting groove 312 around the first through hole 311 for allowing the circumferential limiting rod 130 to enter.

[0053] In this embodiment, the circumferential limiting rod 130 can penetrate the rod body 110 along the diameter direction of the rod body 110 and be integrally formed with the rod body 110. When the support body 120 contacts the bottom of the main body 310, the circumferential limiting rod 130 can be located in the circumferential limiting groove 312.

[0054] When rotating the rod body 110, it is necessary to first lift the adjustment plate 300 a little to separate the circumferential limit rod 130 from the circumferential limit groove 312, and then rotate the rod body 110 to place the support body 120 at a suitable height. Then, slightly rotate the rod body 110 again to align the circumferential limit rod 130 with the circumferential limit groove 312, and finally lower the adjustment plate 300 to allow the circumferential limit rod 130 to enter the circumferential limit groove 312. At this time, the support body 120 just abuts against the bottom of the main body 310 and can support the main body 310.

[0055] If the circumferential limiting rod 130 and the circumferential limiting groove 312 are not provided, the rod body 110 may rotate a little bit by itself due to vibration and other reasons. In this case, after a period of time, the height of the elbow rest will become inappropriate, and the height position of the elbow rest needs to be readjusted, which is troublesome. However, in this embodiment, the circumferential limiting rod 130 and the circumferential limiting groove 312 are provided, so that the rod body 110 will not rotate by itself, so that no matter how much time has passed, the elbow rest will always remain at a suitable height position.

[0056] Further, such as Figure 4 As shown, an auxiliary rotation groove 111 is provided at the axial top end of the rod body 110. Figure 1 and Figure 2 As shown, the elbow support adjustment mechanism of this embodiment further includes: an adjustment nut 200.

[0057] like Figure 3 As shown, the adjusting nut 200 includes a nut body 210 threadedly connected to the axial top end of the rod body 110, an auxiliary rotating plate 220 arranged at one axial end of the nut body 210 and assembled and connected to the auxiliary rotating groove 111, and a finger pinching plate 230 arranged on the peripheral side of the nut body 210.

[0058] The nut body 210 , the finger pinching plate 230 , and the auxiliary rotating plate 220 may be integrally formed, and the finger pinching plate 230 and the auxiliary rotating plate 220 may be mounted on the nut body 210 in a U shape.

[0059] When the elbow rest does not need to be adjusted in height, the adjusting nut 200 is threadedly connected to the axial top end of the rod body 110. When the elbow rest needs to be adjusted in height, the adjusting nut 200 is firstly rotated and removed from the rod body 110, and then the auxiliary rotating plate 220 of the adjusting nut 200 is inserted into the auxiliary rotating groove 111 of the rod body 110, and then the adjusting nut 200 is rotated by rotating the finger pinching plate 230, thereby rotating the rod body 110, and when the height adjustment is completed, the adjusting nut 200 is removed from the rod body 110, and finally the adjusting nut 200 is threadedly connected to the axial top end of the rod body 110.

[0060] If the adjusting nut 200 is not provided, an additional rotating tool is required when the rod body 110 is rotated. If the tool is not brought with you at the time, the height position of the elbow rest cannot be adjusted in time. In this embodiment, by providing the adjusting nut 200, the rod body 110 does not need an additional rotating tool to be rotated, thereby making the height position adjustment of the elbow rest more convenient.

[0061] Further, such as Figure 5 As shown, the adjustment plate 300 of this embodiment further includes a sub-plate 320 connected to the long side of the main plate 310 and arranged perpendicularly to the main plate 310 , and the sub-plate 320 is provided with a first hinge hole 321 .

[0062] like Figure 6 As shown, the base plate 400 further includes a hinge shaft 420 connected to the long side of the base plate body 410 , and the hinge shaft 420 is assembled and connected to the first hinge hole 321 .

[0063] Sub-plates 320 are disposed on both long sides of the main plate 310. The two sub-plates 320 are integrally formed with the main plate 310. The overall shapes (e.g., lengths) of the two sub-plates 320 may be different. A first hinge hole 321 is formed at the first lengthwise end of each sub-plate 320.

[0064] Both long sides of the bottom plate body 410 are connected with hinge shafts 420, which pass through the hinge holes 321, so that the first length direction end of the adjustment plate 300 can rotate around the hinge shaft 420, and the first length direction end of the adjustment plate 300 can also be supported by the hinge shaft 420. The second length direction end of the adjustment plate 300 is supported by the support body 120, and the support body 120 is supported by the rod body 110 and the support rod 500, and the support rod 500 is supported by the hinge plate 430.

[0065] Further, such as Figure 7 As shown, an axial limiting groove 520 is provided on the outer peripheral side of the support rod 500 , and a second hinge hole 431 assembled and connected with the axial limiting groove 520 of the hinge shaft is provided on the hinge shaft hinge plate 430 .

[0066] The axial limit groove 520 is an annular groove circumferentially opened around the support rod 500. The diameter of the second hinge hole 431 is larger than the minimum diameter of the annular groove and smaller than the maximum diameter of the annular groove. In this way, the hinge plate 430 is clamped in the axial limit groove 520 of the support rod 500, so that the support rod 500 can only rotate circumferentially but not move axially.

[0067] Further, such as Figure 4 As shown, the top surface of the support body 120 of this embodiment is arranged in an arc shape. Since the rod body 110 and the main board body 310 are not arranged vertically, especially when the adjustment plate 300 is continuously raised, the angle between the rod body 110 and the main board body 310 will continue to change. Therefore, in this embodiment, the top surface of the support body 120 is arranged in an arc shape, which will make the contact effect between the support body 120 and the main board body 310 better, thereby making the support more stable.

[0068] Further, such as Figure 5 As shown, the adjustment plate 300 of this embodiment is also provided with an elbow support pad connection hole 330. The adjustment plate 300 can be connected and fixed to the elbow support pad through the elbow support pad connection hole 330. Figure 6 As shown, the bottom plate 400 of this embodiment is further provided with bottom plate fixing holes 440. The bottom plate 400 can be connected and fixed to a forklift through the bottom plate fixing holes 440.

[0069] Embodiment 2:

[0070] This embodiment provides an elbow support, including the elbow support adjustment mechanism in Embodiment 1, and also including an elbow support pad connected to the top of the adjustment plate 300. The elbow support pad is elastic, and a receiving hole for accommodating the adjustment nut 200 is provided on the elbow support pad.

[0071] Embodiment 3:

[0072] This embodiment provides a forklift, including the elbow rest in the second embodiment.

[0073] The above embodiments are only for describing the preferred implementation of the utility model, and are not intended to limit the concept and scope of the utility model. Without departing from the design concept of the utility model, various modifications and improvements made by ordinary persons in the art to the technical solution of the utility model should fall within the protection scope of the utility model, and the technical contents of the utility model for protection have been fully recorded in the claims.

Claims

1. An elbow support adjustment mechanism, characterized in that: include: An adjusting screw rod (100) comprises a rod body (110) having a threaded outer circumference, and a support body (120) connected to the rod body (110); The adjustment plate (300) comprises a main plate body (310); the main plate body (310) is provided with a first through hole (311) that allows the rod body (110) to pass through but does not allow the support body (120) to pass through, and the support body (120) is arranged below the main plate body (310); The bottom plate (400) comprises a bottom plate body (410) and a hinge plate (430) connected to the bottom of the bottom plate body (410); the bottom plate body (410) is provided with a second through hole (411) allowing the rod body (110) to pass through; and the main plate body (310) is hingedly connected to the bottom plate body (410); The support rod (500) is provided with a threaded hole (510) threadedly connected to the rod body (110), and an axial end of the support rod (500) is hinged to the hinge plate (430).

2. The elbow support adjustment mechanism according to claim 1, characterized in that: The adjusting screw (100) further comprises: A circumferential limiting rod (130) connected to the rod body (110), the circumferential limiting rod (130) being arranged along the radial direction of the rod body (110), and the circumferential limiting rod (130) being arranged above the support body (120); The main plate body (310) is also provided with a circumferential limiting groove (312) on the circumferential side of the first through hole (311) for allowing the circumferential limiting rod (130) to enter.

3. The elbow support adjustment mechanism according to claim 1, characterized in that: An auxiliary rotation groove (111) is provided at the axial top end of the rod body (110).

4. The elbow support adjustment mechanism according to claim 3, characterized in that: The elbow support adjustment mechanism also includes: The adjusting nut (200) comprises a nut body (210) threadedly connected to the axial top end of the rod body (110), an auxiliary rotating plate (220) arranged at one axial end of the nut body (210) and assembled and connected to the auxiliary rotating groove (111), and a finger pinching plate (230) arranged on the peripheral side of the nut body (210).

5. The elbow support adjustment mechanism according to claim 1, characterized in that: The adjustment plate (300) further comprises a secondary plate body (320) connected to the long side of the main plate body (310) and arranged perpendicularly to the main plate body (310), wherein the secondary plate body (320) is provided with a first hinge hole (321); The base plate (400) further comprises a hinge shaft (420) connected to the long side of the base plate body (410), and the hinge shaft (420) is assembled and connected to the first hinge hole (321).

6. The elbow support adjustment mechanism according to claim 1, characterized in that: An axial limit groove (520) is provided on the outer peripheral side of the support rod (500), and a second hinge hole (431) is provided on the hinge plate (430) for assembly and connection with the axial limit groove (520).

7. The elbow support adjustment mechanism according to claim 1, characterized in that: The top surface of the support body (120) is arranged in an arc shape.

8. The elbow support adjustment mechanism according to claim 1, characterized in that: The adjustment plate (300) is also provided with an elbow support pad connection hole (330); and the bottom plate (400) is also provided with a bottom plate fixing hole (440).

9. An elbow support, characterized in that: The elbow support adjustment mechanism comprises the elbow support adjustment mechanism as claimed in any one of claims 1 to 8, and further comprises an elbow support pad connected to the top of the adjustment plate (300).

10. A forklift, characterized in that: The invention comprises the elbow support as claimed in claim 9.

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