Buttock support and forklift

Abstract

The embodiment of the specification relates to the technical field of forklifts, in particular to a hip support and a forklift. A hip support comprises a fixing frame which comprises a back plate, a supporting plate which is connected with the back plate and is vertically arranged, and a connecting plate which is connected with the supporting plate and is horizontally arranged; the hip support assembly comprises a seat plate, a supporting arm connected with the seat plate and a supporting shaft rotationally connected with the supporting arm, and the supporting shaft is connected with the supporting plate; the lifting assembly is in contact connection with the supporting arm, and when the lifting assembly ascends, the lifting assembly drives the supporting arm to rotate upwards around the supporting shaft so that the seat plate can be lifted; when the lifting assembly descends, the lifting assembly drives the supporting arm to rotate downwards around the supporting shaft so that the seat plate can descend. According to the hip support, through the arrangement of the fixing frame, the hip support assembly and the lifting assembly, the height position of the hip support can be adjusted according to the height and habits of a driver, and then the use comfort of the hip support is improved.

Description

Technical Field

[0001] The embodiments of the present specification relate to the technical field of forklifts, and specifically to a hip support 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] Long-term standing driving will make the driver tired. In order to improve the driving comfort of the driver, the existing technology will equip the stand-on forklift with a hip support. However, most of the existing hip supports are fixed and cannot be adjusted according to the height and habits of the driver. Therefore, for some drivers, the hip support 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 a hip support, comprising:

[0005] The fixing frame includes a back plate, a support plate connected to the back plate and arranged vertically, and a connecting plate connected to the support plate and arranged horizontally;

[0006] The hip support assembly comprises a seat plate, a support arm connected to the seat plate, and a support shaft rotatably connected to the support arm, wherein the support shaft is connected to the support plate;

[0007] The lifting assembly is in contact with the support arm. When the lifting assembly is raised, the lifting assembly drives the support arm to rotate upward around the support axis to raise the seat plate; when the lifting assembly is lowered, the lifting assembly drives the support arm to rotate downward around the support axis to lower the seat plate.

[0008] Preferably, the fixing frame comprises two supporting plates arranged in parallel;

[0009] The connecting plate is connected to the bottoms of the two supporting plates.

[0010] Preferably, the support arm is provided with a rotating sleeve body assembled and connected to the support shaft.

[0011] Preferably, the lifting assembly comprises:

[0012] A lifting rod, the rod body of which passes through the connecting plate, and the lifting rod is threadedly connected to the connecting plate;

[0013] The lifting block, the bottom of which contacts the top of the lifting rod, the top of which contacts the bottom of the support arm, and the lengthwise end of the lifting block passes through the support plate; the support plate is provided with a guide opening for allowing the lifting block to move up and down;

[0014] The movable frame includes a vertical movable plate connected to the lengthwise end of the lifting block, and a horizontal movable plate connected to the vertical movable plate;

[0015] The lifting motor has a shell connected to the bottom of the horizontal moving plate; the horizontal moving plate is provided with a through hole allowing the power output end of the lifting motor to pass through, and the power output end of the lifting motor is connected to the bottom end of the lifting rod.

[0016] Preferably, the movable frame comprises two vertical movable plates arranged in parallel;

[0017] The horizontal moving plate is connected to the bottoms of the two vertical moving plates.

[0018] Preferably, the bottom end of the lifting rod is provided with a limit connector which is assembled and connected to the power output end of the lifting motor.

[0019] Preferably, a connecting column which is assembled and connected to the horizontal moving plate is provided on the housing of the lifting motor.

[0020] Preferably, the hip support further comprises a lifting and limiting assembly, and the lifting and limiting assembly comprises:

[0021] A support frame, comprising a first support plate connected to the back plate, and a second support plate arranged perpendicular to the first support plate;

[0022] A first position limiting member is connected to the second support plate, and the first position limiting member is provided with a high position limiting portion;

[0023] A second limiting member is connected to the second supporting plate, and the second limiting member is provided with a low position limiting portion;

[0024] The limit contact piece is connected to the vertical movable plate, and when the vertical movable plate moves upward to a certain position, the limit contact piece can contact the high position limit part; when the vertical movable plate moves downward to a certain position, the limit contact piece can contact the low position limit part.

[0025] Preferably, the hip support assembly further comprises an elastic seat cushion connected to the seat plate.

[0026] The embodiment of this specification also provides a forklift, comprising the above-mentioned hip support.

[0027] Beneficial Effects

[0028] The hip support of the embodiment of the present specification can adjust the height of the hip support according to the height and habits of the driver through the arrangement of the fixing frame, the hip support assembly and the lifting assembly, thereby improving the comfort of the hip support.

[0029] 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

[0030] Figure 1 This is a schematic diagram of the overall structure of the hip support in the embodiment of this specification;

[0031] Figure 2 This is a schematic diagram of the structure of the hip support without the hip support assembly in the embodiment of this specification;

[0032] Figure 3 This is a schematic diagram of the dispersed structure of the hip support assembly in the embodiment of this specification;

[0033] Figure 4 This is a schematic diagram of the structure of the fixing frame and the lifting and limiting assembly in the embodiment of this specification;

[0034] Figure 5 This is a structural schematic diagram of the lifting and limiting assembly in the embodiment of this specification;

[0035] Figure 6 It is a schematic diagram of the structure of the lifting rod, moving frame and other components in the embodiments of this specification. DETAILED DESCRIPTION

[0036] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0037] Embodiment 1:

[0038] like Figure 1 , Figure 2 As shown, this embodiment provides a hip support, including: a fixing frame 100, a hip support assembly 200 and a lifting assembly.

[0039] like Figure 4 As shown, the fixing frame 100 includes a back plate 110, a support plate 120 connected to the back plate 110 and arranged vertically, and a connecting plate 130 connected to the support plate 120 and arranged horizontally. The fixing frame 100 of this embodiment includes two support plates 120 arranged in parallel, and the connecting plate 130 is connected to the bottoms of the two support plates 120.

[0040] The back plate 110 is used to connect with the forklift frame, and a back plate connection hole for connecting with the forklift frame is provided on the back plate 110. The support plate 120 is provided with a mounting hole at its upper portion, and the support plate 120 is provided with a guide opening 121 at a portion located below the mounting hole. The mounting holes of the two support plates 120 are symmetrically arranged, and the guide openings 121 of the two support plates 120 are also symmetrically arranged. A threaded connection hole is provided on the connecting plate 130, and the connecting plate 130 needs to have a certain thickness, so that the axial length of the threaded connection hole meets the use requirements.

[0041] like Figure 3 As shown, the hip support assembly 200 includes a seat plate 210 , a support arm 220 connected to the seat plate 210 , and a support shaft 230 rotatably connected to the support arm 220 , and the support shaft 230 is connected to the support plate 120 .

[0042] The support shaft 230 of this embodiment is connected and fixed to the support plate 120 through the mounting hole of the support plate 120. The support arm 220 may be in the shape of a long plate, and a support arm connection hole is provided at the first lengthwise end of the support arm 220. The support arm 220 is sleeved on the support shaft 230 through the support arm connection hole, so that the support arm 220 can rotate around the support shaft 230. The seat plate 210 is connected to the second lengthwise end of the support arm 220, and an oblique section is provided on the support arm 220. The seat plate 210 is connected and fixed to the support arm 220 through the oblique section.

[0043] like Figure 3 As shown, the support arm 220 of this embodiment is provided with a rotating sleeve 221 assembled and connected with the support shaft 230. That is, the first length direction end of the support arm 220 is connected with the rotating sleeve 221, and the support arm 220 is rotatably connected with the support shaft 230 through the rotating sleeve 221. The provision of the rotating sleeve 221 increases the contact area between the support arm 220 and the support shaft 230, so that the support arm 220 rotates around the support shaft 230 more stably.

[0044] In addition, the hip support assembly 200 of this embodiment further includes an elastic seat cushion connected to the seat plate 210. The seat plate 210 is provided with a seat plate connecting hole, and the elastic seat cushion is connected to the seat plate 210 through the seat plate connecting hole. The provision of the elastic seat cushion can improve the comfort of the hip support.

[0045] like Figure 1 As shown, the lifting assembly is in contact with the support arm 220. When the lifting assembly is raised, the lifting assembly drives the support arm 220 to rotate upward around the support shaft 400 to raise the seat plate 210; when the lifting assembly is lowered, the lifting assembly drives the support arm 220 to rotate downward around the support shaft 400 to lower the seat plate 210.

[0046] Specifically, Figure 2 and Figure 6 As shown, the lifting assembly of this embodiment includes a lifting rod 300 , a lifting block 500 , a moving frame 600 and a lifting motor 700 .

[0047] like Figure 6As shown, the rod body of the lifting rod 300 passes through the connecting plate 130, and the lifting rod 300 is threadedly connected to the connecting plate 130. A connecting thread is provided on the outer peripheral side of the lifting rod 300, and the lifting rod 300 is assembled and connected with the threaded connecting hole on the connecting plate 130 through the connecting thread. When the lifting rod 300 rotates clockwise, the lifting rod 300 can move upward relative to the connecting plate 130; when the lifting rod 300 rotates counterclockwise, the lifting rod 300 can move downward relative to the connecting plate 130; when the lifting rod 300 stops rotating, the lifting rod 300 can be fixed relative to the connecting plate 130.

[0048] like Figure 2 As shown, the bottom of the lifting block 500 contacts the top of the lifting rod 300, the top of the lifting block 500 contacts the bottom of the support arm 220, and the lengthwise end of the lifting block 500 passes through the support plate 120. The support plate 120 is provided with a guide opening 121 that allows the lifting block 500 to move up and down.

[0049] Both ends of the lifting block 500 in the length direction pass through the guide opening 121 , and the guide opening 121 can limit the lifting block 500 in the front-to-back direction (ie, the direction perpendicular to the back plate 110 ) so that the lifting block 500 can only move up and down.

[0050] When the lifting rod 300 moves upward, the lifting rod 300 will move upward together with the lifting block 500. When the lifting block 500 moves upward, the lifting block 500 will rotate upward around the support shaft 230 against the support arm 220, thereby raising the seat plate 210. When the lifting rod 300 moves downward, the lifting block 500 will move downward together with the lifting rod 300 due to the effect of gravity. When the lifting block 500 moves downward, the support arm 220 will automatically rotate downward around the support shaft 230 following the lifting block 500 due to the effect of gravity, thereby lowering the seat plate 210.

[0051] like Figure 2 and Figure 3 As shown, the moving frame 600 includes a vertical moving plate 610 connected to the length direction end of the lifting block 500, and a horizontal moving plate 620 connected to the vertical moving plate 610. The moving frame 600 of this embodiment includes two parallel vertical moving plates 610, and the horizontal moving plate 620 is integrally connected to the bottom of the two vertical moving plates 610.

[0052] The vertical moving plate 610 is parallel to the support plate 120, and a lifting block connection hole is provided on the vertical moving plate 610. The end of the lifting block 500 passes through the guide opening 121 and is connected and fixed to the vertical moving plate 610 through the lifting block connection hole. When the lifting block 500 moves up and down, the vertical moving plate 610 (i.e., the entire moving frame 600) moves up and down with the lifting block 500.

[0053] like Figure 2 and Figure 3 As shown, the housing of the lifting motor 700 is connected to the bottom of the horizontal moving plate 620. The housing of the lifting motor 700 is provided with a connecting column 710 assembled and connected with the horizontal moving plate 620. The connecting column 710 is vertically arranged and has an internal threaded connection hole. The horizontal moving plate 620 is provided with a threaded docking hole provided with the connecting column 710.

[0054] When installing the lifting motor 700, it is only necessary to align the connecting column 710 of the lifting motor 700 with the threaded docking hole of the horizontal moving plate 620, and then connect and fix the two by a connecting member (such as a screw). The setting of the connecting column 710 can improve the convenience of disassembly and assembly of the lifting motor 700. The lifting motor 700 can move up and down with the moving frame 600.

[0055] In addition, if Figure 6 As shown, the horizontal moving plate 620 is provided with a through hole 621 allowing the power output end of the lifting motor 700 to pass through, and the power output end of the lifting motor 700 is connected to the bottom end of the lifting rod 300 .

[0056] After the outer shell of the lifting motor 700 is connected and fixed to the horizontal moving plate 620, the power output end of the lifting motor 700 just passes upward through the through hole 621, and the power output end of the lifting motor 700 is not in contact with the horizontal moving plate 620. The power output end of the lifting motor 700 is connected and fixed to the bottom end of the lifting rod 300, and the lifting motor 700 can drive the lifting rod 300 to rotate clockwise or counterclockwise.

[0057] like Figure 2 and Figure 3 As shown, the bottom end of the lifting rod 300 is provided with a limit connector 310 assembled and connected with the power output end of the lifting motor 700. The lifting rod 300 can be clamped to the power output end of the lifting motor 700 through the limit connector 310. The limit connector 310 can be provided with an axial plug hole and a radial limit hole, and the power output end of the lifting motor 700 can be provided with a radial limit docking hole assembled and connected with the radial limit hole of the limit connector 310.

[0058] When the lifting rod 300 is connected to the power output end of the lifting motor 700, it is only necessary to first insert the axial plug hole of the limit connector 310 of the lifting rod 300 into the power output end of the lifting motor 700, and then slightly rotate the limit connector 310 to align the radial limit hole of the limit connector 310 with the radial limit docking hole of the power output end of the lifting motor 700, and finally connect and fix the radial limit hole of the limit connector 310 with the radial limit docking hole of the power output end of the lifting motor 700 through a connecting piece (such as a latch). The setting of the limit connector 310 makes the disassembly and assembly of the lifting rod 300 and the lifting motor 700 more convenient.

[0059] The specific working principle of the hip support in this embodiment:

[0060] When the seat plate 210 needs to be raised, the driver can press the raising button, and after the lifting motor 700 is started, the power output end of the lifting motor 700 rotates clockwise; the power output end of the lifting motor 700 drives the lifting rod 300 to rotate clockwise, thereby causing the lifting rod 300 to move upward relative to the connecting plate 130; when the lifting rod 300 moves upward, it will move upward together with the lifting block 500; when the lifting block 500 moves upward, it will rotate upward around the support shaft 230 against the support arm 220, thereby raising the seat plate 210; in addition, when the lifting block 500 moves upward, it will also move upward with the moving frame 600 and the lifting motor 700 adaptively.

[0061] When the seat plate 210 needs to be lowered, the driver can press the lowering button, and after the lifting motor 700 is started, the power output end of the lifting motor 700 rotates counterclockwise; the power output end of the lifting motor 700 drives the lifting rod 300 to rotate counterclockwise, thereby causing the lifting rod 300 to move downward relative to the connecting plate 130; when the lifting rod 300 moves downward, it will move downward together with the lifting block 500; when the lifting block 500 moves downward, it will rotate downward around the support shaft 230 against the support arm 220, thereby lowering the seat plate 210; in addition, when the lifting block 500 moves downward, it will also move downward with the moving frame 600 and the lifting motor 700 adaptively.

[0062] Furthermore, the hip support of this embodiment also includes a lifting and limiting component. Figure 4 and Figure 5 As shown, the lifting and limiting assembly includes: a support frame 810, a first limiting member 820, a second limiting member 830 and a limiting contact member 840.

[0063] like Figure 4As shown, the support frame 810 includes a first support plate 811 connected to the back plate 110, and a second support plate 812 arranged perpendicular to the first support plate 811. The first support plate 811 is provided with a vertically arranged strip connection hole, and the first support plate 811 is connected and fixed to the back plate 110 through the strip connection hole. Through the arrangement of the strip connection hole, the arrangement height of the first support plate 811 can be adjusted according to demand.

[0064] The first limiter 820 is connected to the second support plate 812, and the first limiter 820 is provided with a high position limiting portion 821. The first limiter 820 can be a contact switch, and the first limiter 820 is used to limit the highest position of the vertical movable plate 610 moving upward. When the vertical movable plate 610 moves to the highest position, the first limiter 820 can send a signal to the lifting motor 700 to stop the lifting motor 700 from rotating.

[0065] The second stopper 830 is connected to the second support plate 812, and the second stopper 830 is provided with a low position limiting portion 831. The second stopper 830 can be a contact switch, and the second stopper 830 is used to limit the lowest position of the vertical movable plate 610 moving downward. When the vertical movable plate 610 moves to the lowest position, the second stopper 830 can send a signal to the lifting motor 700 to stop the lifting motor 700 from rotating.

[0066] The limit contact 840 is connected to the vertical movable plate 610 , and when the vertical movable plate 610 moves upward to a certain position, the limit contact 840 can contact the high position limiting portion 821 ; when the vertical movable plate 610 moves downward to a certain position, the limit contact 840 can contact the low position limiting portion 831 .

[0067] The position-limiting contact member 840 may be a bolt, which is directly connected and fixed to the vertically movable plate 610 . The free end of the bolt is located between the high position limiting portion 821 of the first position-limiting member 820 and the low position limiting portion 831 of the second position-limiting member 830 .

[0068] When the vertical movable plate 610 moves upward with the bolt until the free end of the bolt contacts the high-position limiting portion 821 of the first limiting member 820, it indicates that the vertical movable plate 610 has moved to the set highest position (that is, the seat plate 210 has been lifted to the set highest position). At this time, the first limiting member 820 sends a first signal to the lifting motor 700, and the lifting motor 700 stops rotating clockwise, thereby preventing the seat plate 210 from continuing to be lifted upward.

[0069] When the vertical movable plate 610 moves downward with the bolt until the free end of the bolt contacts the low-position limiting portion 831 of the second limiting member 830, it indicates that the vertical movable plate 610 has moved to the set lowest position (that is, the seat plate 210 has dropped to the set lowest position). At this time, the second limiting member 830 sends a second signal to the lifting motor 700, and the lifting motor 700 stops rotating counterclockwise, thereby preventing the seat plate 210 from continuing to drop.

[0070] First, the height distance between the high-position limiting portion 821 of the first limiting member 820 and the low-position limiting portion 831 of the second limiting member 830 may correspond to the height of the guide opening 121. When the lifting block 500 moves to contact the top of the guide opening 121, the limiting contact member 840 may just contact the high-position limiting portion 821 of the first limiting member 820; when the lifting block 500 moves to contact the bottom of the guide opening 121, the limiting contact member 840 may just contact the low-position limiting portion 831 of the second limiting member 830.

[0071] In this way, when the lifting block 500 moves to contact the top of the guide opening 121, the first stopper 820 will send a first signal to stop the lifting motor 700 from rotating, thereby preventing the lifting motor 700 from continuously generating a force to push the lifting block 500 upward, thereby ultimately preventing damage to the hip support. When the lifting block 500 moves to contact the bottom of the guide opening 121, the second stopper 830 will send a second signal to stop the lifting motor 700 from rotating, thereby preventing the lifting motor 700 from continuously generating a force to press the lifting block 500 downward, thereby ultimately preventing damage to the hip support.

[0072] Secondly, the height distance between the high-position limiting portion 821 of the first limiting member 820 and the low-position limiting portion 831 of the second limiting member 830 may also be smaller than the height of the guide opening 121. When the lifting block 500 moves to a position where it has not yet contacted the top of the guide opening 121, the limiting contact member 840 has already contacted the high-position limiting portion 821 of the first limiting member 820; when the lifting block 500 moves to a position where it has not yet contacted the bottom of the guide opening 121, the limiting contact member 840 has already contacted the low-position limiting portion 831 of the second limiting member 830.

[0073] In this way, in addition to avoiding damage to the hip support due to excessive upward pushing or excessive downward pressing, a seat adjustment range can be pre-set according to usage requirements (this seat adjustment range is smaller than the adjustable range of the seat itself, for example, the adjustment range of the seat itself is 0-90 degrees, and the seat adjustment range set according to requirements is 30-60 degrees), thereby making the adjustment of the seat 210 faster and more efficient.

[0074] Embodiment 2:

[0075] This embodiment provides a forklift, comprising the hip support in Embodiment 1.

[0076] 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. A hip support, characterized in that: include: A fixing frame (100) comprising a back plate (110), a support plate (120) connected to the back plate (110) and arranged vertically, and a connecting plate (130) connected to the support plate (120) and arranged horizontally; A hip support assembly (200) comprises a seat plate (210), a support arm (220) connected to the seat plate (210), and a support shaft (230) rotatably connected to the support arm (220), wherein the support shaft (230) is connected to the support plate (120); A lifting assembly is in contact with and connected to the support arm (220); when the lifting assembly is raised, the lifting assembly drives the support arm (220) to rotate upward around the support shaft (230) so as to raise the seat plate (210); when the lifting assembly is lowered, the lifting assembly drives the support arm (220) to rotate downward around the support shaft (230) so as to lower the seat plate (210).

2. A hip support according to claim 1, characterized in that: The fixing frame (100) comprises two supporting plates (120) arranged in parallel; The connecting plate (130) is connected to the bottoms of the two supporting plates (120).

3. A hip support according to claim 1, characterized in that: The support arm (220) is provided with a rotating sleeve (221) assembled and connected to the support shaft (230).

4. A hip support according to claim 1, characterized in that: The lifting assembly comprises: A lifting rod (300), the rod body of which passes through the connecting plate (130), and the lifting rod (300) is threadedly connected to the connecting plate (130); A lifting block (500), the bottom of which contacts the top of the lifting rod (300), the top of which contacts the bottom of the support arm (220), and the lengthwise end of the lifting block (500) passes through the support plate (120); the support plate (120) is provided with a guide opening (121) for allowing the lifting block (500) to move up and down; A movable frame (600) comprising a vertical movable plate (610) connected to the lengthwise end of the lifting block (500), and a horizontal movable plate (620) connected to the vertical movable plate (610); A lifting motor (700) having a housing connected to the bottom of the horizontal moving plate (620); the horizontal moving plate (620) is provided with a through hole (621) allowing the power output end of the lifting motor (700) to pass through, and the power output end of the lifting motor (700) is connected to the bottom end of the lifting rod (300).

5. A hip support according to claim 4, characterized in that: The movable frame (600) comprises two vertical movable plates (610) arranged in parallel; The horizontal moving plate (620) is connected to the bottoms of the two vertical moving plates (610).

6. A hip support according to claim 4, characterized in that: The bottom end of the lifting rod (300) is provided with a limit connector (310) which is assembled and connected to the power output end of the lifting motor (700).

7. A hip support according to claim 4, characterized in that: A connecting column (710) which is assembled and connected to the horizontal moving plate (620) is provided on the housing of the lifting motor (700).

8. A hip support according to claim 4, characterized in that: The hip support further includes a lifting and limiting assembly, and the lifting and limiting assembly includes: A support frame (810) comprising a first support plate (811) connected to the back plate (110), and a second support plate (812) arranged perpendicular to the first support plate (811); A first position limiting member (820) is connected to the second support plate (812), and the first position limiting member (820) is provided with a high position limiting portion (821); A second position-limiting member (830) is connected to the second support plate (812), and the second position-limiting member (830) is provided with a low-position limiting portion (831); The limit contact piece (840) is connected to the vertical movable plate (610), and when the vertical movable plate (610) moves upward to a certain position, the limit contact piece (840) can contact the high-position limit portion (821); when the vertical movable plate (610) moves downward to a certain position, the limit contact piece (840) can contact the low-position limit portion (831).

9. A hip support according to claim 1, characterized in that: The hip support assembly (200) further comprises an elastic seat cushion connected to the seat plate (210).

10. A forklift, characterized in that: The invention comprises a hip support as claimed in any one of claims 1 to 9.

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