CN220600169U - But automatically regulated high handrail - Google Patents
But automatically regulated high handrail Download PDFInfo
- Publication number
- CN220600169U CN220600169U CN202322357135.0U CN202322357135U CN220600169U CN 220600169 U CN220600169 U CN 220600169U CN 202322357135 U CN202322357135 U CN 202322357135U CN 220600169 U CN220600169 U CN 220600169U
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- sheath
- handrail
- base
- drive screw
- height
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- 230000001105 regulatory effect Effects 0.000 title claims description 3
- 230000006978 adaptation Effects 0.000 claims 1
- 230000002146 bilateral effect Effects 0.000 claims 1
- 230000003247 decreasing effect Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- Steps, Ramps, And Handrails (AREA)
Abstract
The utility model relates to the field of engineering machinery safety protection, in particular to an armrest capable of automatically adjusting the height, which comprises an upper armrest and two vertically arranged driving screws, wherein the upper armrest comprises two support rods which are bilaterally symmetrical and vertically arranged and a connecting rod for connecting the two support rods, the two support rods are hollow and are provided with driving threads which are matched with the two driving screws, the two support rods are respectively sleeved outside the two driving screws from top to bottom and can respectively move up and down along the two driving screws, two bases are respectively arranged below the two driving screws, two motors are respectively arranged above the two bases, and output shafts of the two motors are respectively connected with the lower ends of the two driving screws in a power mode. The armrest has simple structure and convenient use, and can automatically adjust the height.
Description
Technical Field
The utility model relates to the field of engineering machinery safety protection, in particular to an armrest capable of automatically adjusting the height.
Background
Under the conditions of complex working conditions and severe environment, the strength of the joint of the handrail steel pipe and the base in the working process is poor. The span of the existing handrail steel pipe is larger, the length of the existing handrail steel pipe extends in the height direction, and the upper portion of the handrail swings more under the action of external force. Because the upper part swings greatly, the lower part is fixedly connected, so that the handrail is easy to crack from the bottom, and loss is brought to enterprises.
Based on the problems, the applicant develops an armrest capable of automatically adjusting the height, wherein the upper armrest is connected with a screw rod through a transmission thread, the screw rod is connected with a motor, and the motor rotates positively and negatively to drive the upper armrest to move up and down. When the handrail is in work, the height of the handrail is reduced to the minimum, so that the swing of the handrail is reduced, and the bottom of the handrail is ensured not to be damaged; when safety protection is required, the motor drives the upper handrail to rise to the highest through rotation, so that safety protection is realized.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the handrail which is simple in structure, convenient to use and capable of automatically adjusting the height.
In order to solve the technical problem, the handrail capable of automatically adjusting the height is structurally characterized in that the handrail comprises an upper handrail and two vertically arranged driving screws, the upper handrail comprises two support rods which are bilaterally symmetrical and vertically arranged and a connecting rod for connecting the two support rods, the two support rods are hollow and the inner side walls are provided with driving threads which are matched with the two driving screws, the two support rods are respectively sleeved outside the two driving screws from top to bottom and can respectively move up and down along the two driving screws, two bases are respectively arranged below the two driving screws, two motors are respectively arranged above the two bases, and output shafts of the two motors are respectively connected with the lower ends of the two driving screws in a power mode.
By adopting the structure, the upper handrail is connected with the driving screw rod through the inner driving screw thread, and the driving screw rod is driven by the motor, so that the motor can drive the upper handrail to move up and down in forward and reverse rotation. When the upper handrail is in work, the height of the upper handrail can be reduced to the minimum, so that the swing amplitude of the upper handrail is reduced, and the bottom of the upper handrail is not cracked; when safety protection is required, the motor drives the upper handrail to rise to the highest through rotation, so that safety protection is realized.
Preferably, the transmission screw is sleeved with a sheath outside, the lower end of the transmission screw is sleeved with a slewing bearing, and the outer ring of the slewing bearing is connected with the lower end of the inner side wall of the sheath and is in interference fit with the inner wall of the sheath. The protective sleeve can play a role in protection during operation, and the rotary transmission screw is isolated. The transmission screw is matched with the slewing bearing gear ring through the spiral groove, so that higher rotation transmission efficiency can be realized, energy loss is reduced, larger radial and axial loads can be effectively born, and a heavy-duty working environment is met.
Preferably, the sheath comprises a sheath base positioned at the lower part, the upper surface of the sheath base is flush with the upper surface of the slewing bearing, and the inner diameter of the sheath base is larger than the inner diameter of the residual part of the sheath positioned above the sheath base, so that a boss is formed at the upper end of the sheath base, and the slewing bearing can be prevented from continuing to move upwards.
Preferably, the upper end of the sheath is provided with a sheath upper cover, a through hole is formed in the middle of the sheath upper cover, and the diameter of the through hole is not smaller than the outer diameter of the support rod. The arrangement of the sheath upper cover plays a role in shielding the internal structure.
Preferably, the height of the supporting rod is not smaller than the height of the slewing bearing from the upper cover of the sheath. When the support rod moves to the bottommost part, the support rod can be exposed out of the upper end of the sheath by the arrangement of the structure, and the condition that the support rod is broken due to downward movement is avoided.
Preferably, the driving screw comprises a first part, a second part and a third part, the outer diameter of which is sequentially reduced from top to bottom, the third part is in power connection with the output end of the motor, the second part is positioned in the slewing bearing and used for installing the slewing bearing, and the outer wall of the first part is provided with external threads and positioned above the slewing bearing. The provision of the second portion helps to facilitate installation of the slew bearing.
Preferably, a plurality of first bolt holes are formed in the middle of the base, a plurality of second bolt holes matched with the first bolt holes are correspondingly formed in the motor, and the motor is mounted on the base through first fixing bolts matched with the first bolt holes. The first bolt hole on the base corresponds with the second bolt hole on the motor in position and conveniently uses fixing bolt to fix the two together.
Preferably, four third bolt holes are formed in four corners of the base respectively, the sheath base comprises a mounting plate which is coaxially mounted on the sheath base and located below the sheath base, four fourth bolt holes matched with the third bolt holes are correspondingly formed in four corners of the mounting plate respectively, and the sheath is mounted on the base through second fixing bolts matched with the third bolt holes. And the third bolt hole on the base is fixedly connected with the fourth bolt hole on the mounting plate by a fixing bolt at a position corresponding to the fourth bolt hole.
In summary, the beneficial effects of the utility model are as follows:
the upper handrail is connected with a driving screw through a driving thread on the inner side, the driving screw is driven by a motor, and the motor rotates positively and negatively to drive the upper handrail to move up and down. When the upper handrail is in work, the height of the upper handrail can be reduced to the minimum, so that the swing amplitude of the upper handrail is reduced, and the bottom of the upper handrail is not cracked; when safety protection is required, the motor drives the upper handrail to rise to the highest through rotation, so that safety protection is realized.
Drawings
The utility model is described in further detail below with reference to the attached drawings and detailed description:
FIG. 1 is a schematic diagram of a front view of the present utility model;
FIG. 2 is a schematic cross-sectional view of A-A of FIG. 1;
FIG. 3 is an enlarged schematic view of the portion B in FIG. 2;
FIG. 4 is a schematic view of the present utility model in operation;
fig. 5 is a schematic view of the present utility model in an installed protection state.
In the figure: the upper handrail 1, the drive screw 2, the support rod 3, the connecting rod 4, the drive screw 5, the base 6, the motor 7, the sheath 8, the slewing bearing 9, the sheath base 10, the sheath upper cover 11, the through hole 12, the first part 13, the second part 14, the third part 15, the first bolt hole 16, the second bolt hole 17, the first fixing bolt 18, the third bolt hole 19, the mounting plate 20 and the fourth bolt hole 21.
Detailed Description
The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.
In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
The terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
The following is a description of preferred embodiments of the utility model, taken in conjunction with the accompanying drawings.
Referring to the accompanying drawings 1-5, the utility model discloses an armrest capable of automatically adjusting the height, which comprises an upper armrest 1, two vertically arranged driving screws 2, wherein the upper armrest 1 comprises two support rods 3 which are bilaterally symmetrical and vertically arranged and a connecting rod 4 which is connected with the two support rods 3, the two support rods 3 are hollow and the inner side walls of the two support rods 3 are provided with driving threads 5 which are matched with the two driving screws 2, the two support rods 3 are respectively sleeved outside the two driving screws 2 from top to bottom, the two support rods 3 can respectively move up and down along the two driving screws 2, two bases 6 are respectively arranged below the two driving screws 2, two motors 7 are respectively arranged above the two bases 6, and the output shafts of the two motors 7 are respectively connected with the lower ends of the two driving screws 2 in a power mode.
As a further explanation of this embodiment, referring to fig. 2, a sheath 8 is sleeved on the outer side of the drive screw 2, a slewing bearing 9 is sleeved on the lower end of the drive screw 2, and an outer ring of the slewing bearing 9 is connected with the lower end of the inner side wall of the sheath 8 and is in interference fit with the inner wall of the sheath 8.
As a further explanation of this embodiment, referring to fig. 2, the sheath 8 includes a sheath base 10 located at a lower portion, an upper surface of the sheath base 10 being flush with an upper surface of the slew bearing 9, and an inner diameter of the sheath base 10 being larger than an inner diameter of a remaining portion of the sheath 8 located thereabove.
As a further explanation of the present embodiment, referring to fig. 2, a sheath upper cover 11 is provided at the upper end of the sheath 8, and a through hole 12 is provided in the middle of the sheath upper cover 11, the diameter of the through hole 12 being not smaller than the outer diameter of the support rod 3.
As a further explanation of the present embodiment, referring to fig. 2, the height of the support rod 3 is not less than the height of the swivel bearing 9 from the sheath upper cover 11.
As a further explanation of this embodiment, referring to fig. 2, the drive screw 2 comprises a first portion 13, a second portion 14 and a third portion 15, the outer diameter of which decreases in sequence from top to bottom, the third portion 15 being in dynamic connection with the output end of the motor 7, the second portion 14 being located in the slew bearing 9 for mounting the slew bearing 9, the outer wall of the first portion 13 being provided with external threads and being located above the slew bearing 9.
As a further explanation of the present embodiment, referring to fig. 2, a plurality of first bolt holes 16 are provided in the middle of the base 6, a plurality of second bolt holes 17 matching with the first bolt holes 16 are also provided on the motor 7, and the motor 7 is mounted on the base 6 by first fixing bolts 18 matching with the first bolt holes 16.
As a further explanation of the present embodiment, referring to fig. 2, four third bolt holes 19 are provided at four corners of the base 6, respectively, the sheath base 10 includes a mounting plate 20 coaxially mounted thereto and located thereunder, four fourth bolt holes 21 matching with the third bolt holes 19 are also provided at four corners of the mounting plate 20, respectively, and the sheath 8 is mounted on the base 6 by means of second fixing bolts matching with the third bolt holes 19.
The working principle of the utility model is as follows:
the motor 7 drives the driving screw 2 to rotate, and the upper handrail 1 is connected with the driving screw 2 through the inner driving screw 5, namely, the motor 7 can rotate positively and negatively to drive the upper handrail 1 to move up and down. When the upper handrail 1 works, the motor 7 rotates to minimize the height of the upper handrail 1, so that the swing amplitude of the upper handrail 1 is reduced, and the bottom of the upper handrail 1 is not cracked; when safety protection is required, the motor 7 drives the upper handrail 1 to rise to the highest through rotation, so that safety protection is realized.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.
Claims (8)
1. But automatically regulated height's handrail, a serial communication port, including upper portion handrail (1), still include two drive screw (2) of vertical setting, upper portion handrail (1) include bilateral symmetry and two bracing pieces (3) of vertical setting and connecting rod (4) of connecting two bracing pieces (3), drive screw (5) with two drive screw (2) looks adaptation have all been seted up to inside cavity and inside wall of two bracing pieces (3), two bracing pieces (3) top-down cup joint respectively outside two drive screw (2) and two bracing pieces (3) can follow two drive screw (2) and reciprocate respectively, two base (6) are installed respectively to two drive screw (2) below, two motor (7) are installed respectively to two base (6) top, two motor (7) output shaft respectively with two drive screw (2) lower extreme power connection.
2. The handrail capable of automatically adjusting the height according to claim 1, wherein a sheath (8) is sleeved outside the drive screw (2), a slewing bearing (9) is sleeved at the lower end of the drive screw (2), and an outer ring of the slewing bearing (9) is connected with the lower end of the inner side wall of the sheath (8) and in interference fit with the inner wall of the sheath (8).
3. An automatically height adjustable handrail according to claim 2, characterized in that the sheath (8) comprises a sheath base (10) at the lower part, the upper surface of the sheath base (10) being flush with the upper surface of the swivel bearing (9), the inner diameter of the sheath base (10) being larger than the inner diameter of the remainder of the sheath (8) above it.
4. A handrail with automatic height adjustment according to claim 3, characterized in that the upper end of the sheath (8) is provided with a sheath upper cover (11), a through hole (12) is provided in the middle of the sheath upper cover (11), and the diameter of the through hole (12) is not smaller than the outer diameter of the support rod (3).
5. An automatically height-adjustable armrest as claimed in claim 4, characterized in that the height of the support rod (3) is not less than the height of the swivel bearing (9) from the upper cover (11) of the sheath.
6. The handrail with automatic height adjustment according to claim 2, characterized in that the drive screw (2) comprises a first part (13), a second part (14) and a third part (15) with sequentially decreasing outer diameters from top to bottom, the third part (15) is in power connection with the output end of the motor (7), the second part (14) is positioned in the swivel bearing (9) for mounting the swivel bearing (9), and the outer wall of the first part (13) is provided with external threads and is positioned above the swivel bearing (9).
7. The handrail with the height capable of being automatically adjusted according to claim 1, wherein a plurality of first bolt holes (16) are formed in the middle of the base (6), a plurality of second bolt holes (17) matched with the first bolt holes (16) are correspondingly formed in the motor (7), and the motor (7) is mounted on the base (6) through first fixing bolts (18) matched with the first bolt holes (16).
8. A handrail with automatic height adjustment according to claim 3, characterized in that four third bolt holes (19) are respectively arranged at four corners of the base (6), the sheath base (10) comprises a mounting plate (20) coaxially arranged and positioned at the lower part, four fourth bolt holes (21) matched with the third bolt holes (19) are respectively arranged at four corners of the mounting plate (20), and the sheath (8) is arranged on the base (6) through second fixing bolts matched with the third bolt holes (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322357135.0U CN220600169U (en) | 2023-08-31 | 2023-08-31 | But automatically regulated high handrail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322357135.0U CN220600169U (en) | 2023-08-31 | 2023-08-31 | But automatically regulated high handrail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220600169U true CN220600169U (en) | 2024-03-15 |
Family
ID=90176393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322357135.0U Active CN220600169U (en) | 2023-08-31 | 2023-08-31 | But automatically regulated high handrail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220600169U (en) |
-
2023
- 2023-08-31 CN CN202322357135.0U patent/CN220600169U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |