CN218643455U - Structure is adjusted to handrail case hand rest - Google Patents

Abstract

The utility model relates to an engineering machine tool field, concretely relates to handrail case hand rest adjusts structure, it includes the stay tube, install the supporting seat on the stay tube, it has the handrail board to articulate on the supporting seat, be equipped with one-way tooth on the supporting seat, the last hinge of handrail board is equipped with carries out one-way spacing limiting plate to one-way tooth, be equipped with the non return tooth on the limiting plate, non return tooth block is on one-way tooth, install on the handrail board and be used for when one-way tooth is crossed to the non return tooth, drive non return tooth and one-way tooth break away from the reset spring of block state, reset spring is the extension spring, extension spring one end is connected on the handrail board, the extension spring other end is connected with the limiting plate, the cover is equipped with the sleeve pipe on the stay tube, the stay tube cartridge is in the sleeve pipe, stay tube and sleeve pipe sliding fit, install on the sleeve pipe and carry out the positioner that locks the location to the stay tube. This handrail case hand rest adjusts structure, the upper and lower height and the lifting angle of regulation handrail board that can be convenient to the handrail board possesses a plurality of fender position, convenient to use.

Description

Structure is adjusted to handrail case hand rest

Technical Field

The utility model relates to an engineering machine tool field, concretely relates to handrail case hand rest adjusts structure.

Background

The excavator cab is a place where an excavator driver works, and the structure and the function of the excavator cab are directly related to the safety, the working efficiency and the health of the driver. Besides various operating components used for controlling the excavator to run, the armrest box is arranged in the cab, the armrest box can support the arms of the driver, the working comfort of the driver is improved, the situation that the arms of the driver are tired and ache due to hanging of the arms in the air for a long time in the working process is avoided, the quality of the armrest box is directly related to the comfort level of operators and the overall performance of the whole excavator, and the excellent armrest box can provide human-computer convenience and comfort for the driver.

Along with the upgrading and upgrading of the excavator, the traditional excavator armrest box is not attractive integrally, the adjusting shaft structure is exposed, the defects that the adjusting structure is easy to damage and the like are also shown, the lifting angle of the hand support is limited by the structure, and the number of gears available for use is small, so that the adaptability adjustment cannot be performed on drivers with different shapes, and the improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a structure is reliable to above problem, adjusts convenient handrail case hand rest and adjusts structure.

In order to achieve the purpose, the utility model discloses a handrail case hand rest adjusts structure, including the stay tube, its structural feature is: install the supporting seat on the stay tube, it has the handrail board to articulate on the supporting seat, is equipped with one-way tooth on the supporting seat, and the last hinge of handrail board is equipped with carries out one-way spacing limiting plate to one-way tooth, is equipped with non return tooth on the limiting plate, and non return tooth block is on one-way tooth, installs on the handrail board to be used for when one-way tooth is crossed to the non return tooth, drives non return tooth and one-way tooth and breaks away from the reset spring of block state.

After adopting above-mentioned structure, set up one-way tooth on the supporting seat, set up the non return tooth on the limiting plate, the non return tooth carries on spacingly to one-way tooth, the handrail board can only be lifted, when handrail board lifting to limiting plate and one-way tooth can the complex terminal position, continue to lift the handrail board on, reset spring pulling limiting plate rotates this moment, non return tooth on the limiting plate no longer takes place the cooperation with one-way tooth, the non return tooth no longer carries on spacingly to one-way tooth, the handrail board can fall this moment, this device structure is pleasing to the eye reliable, high durability and convenient use can conveniently adjust the lifting angle of handrail board.

Regarding reset spring's concrete structure, reset spring is the extension spring, and extension spring one end is connected on the handrail board, and the extension spring other end is connected with the limiting plate.

Regarding the connection structure of the tension spring and the limiting plate, the limiting plate is provided with a positioning hole, the positioning hole is located at one end far away from the non-return tooth, and the tension spring is connected with the positioning hole.

Preferably, a sleeve is sleeved on the support tube, the support tube is inserted into the sleeve, the support tube is in sliding fit with the sleeve, and a positioning device for locking and positioning the support tube is installed on the sleeve. The supporting tube can slide up and down along the sleeve, so that the upper and lower heights of the handrail plate can be adjusted, a driver can adjust the handrail plate to be suitable for the height of the driver, and the positioning device can lock the upper and lower heights of the supporting tube.

Regarding the specific structure of the positioning device, the positioning device comprises a nut arranged on the side part of the sleeve, a screw rod is screwed on the nut, and the screw rod penetrates through the sleeve and abuts against the support tube.

Preferably, the left side and the right side of the armrest plate are provided with side plates, the two side plates are spaced from each other and extend downwards, the rear side of the armrest plate is provided with a rear plate, and the rear plate extends downwards. Supporting seat and limiting plate, extension spring all are located the downside of handrail board for above structure does not expose, and the structure is more pleasing to the eye.

In order to control the maximum lifting angle of the handrail plate, a lower limiting plate used for controlling the maximum lifting angle of the handrail plate is arranged on the rear plate, the lower limiting plate is positioned behind the supporting seat, and when the handrail plate is lifted to the maximum lifting angle, the lower limiting plate is pressed against the rear part of the supporting seat.

In order to control the maximum falling angle of the handrail plate, the upper limiting block used for controlling the maximum falling angle of the handrail plate is arranged on the side plate and is positioned above the supporting seat, and when the handrail plate falls to the maximum falling angle, the upper limiting block is pressed against the rear part of the supporting seat.

Regarding the specific structure of the one-way teeth, the one-way teeth are ratchet teeth, and the ratchet teeth are provided with a plurality of ratchet teeth and are positioned on the front side of the supporting seat. The one-way teeth are similar to the ratchet teeth on the ratchet wheel, while the limiting plate is similar to the pawl, and the plurality of ratchet teeth enable the handrail plate to have a plurality of different gears. The supporting seat is provided with a rotating rod, and the handrail plate is hinged on the supporting seat through the rotating rod.

Preferably, the limiting plate is provided with an avoiding groove which is positioned at the lower side of the non-return tooth. When the handrail board is lifted to the limiting plate and the tail end position where the unidirectional teeth can be matched, the handrail board is continuously lifted, the reset spring pulls the limiting plate to rotate, the non-return teeth on the limiting plate are not matched with the unidirectional teeth, the avoiding grooves are located at the matched position of the unidirectional teeth, and therefore the non-return teeth are not limited to the unidirectional teeth.

To sum up, the beneficial effects of the utility model reside in that: the device has the advantages of attractive and reliable structure, convenient adjustment of the lifting angle of the handrail plate, convenient adjustment of the upper height and the lower height of the handrail plate, multiple gears on the handrail plate and convenient use.

Drawings

FIG. 1 is a schematic cross-sectional view of a console box;

FIG. 2 is a schematic view of a portion of the enlarged structure of point A in FIG. 1;

FIG. 3 is a side view of the armrest box;

FIG. 4 is a schematic top view of the console box;

fig. 5 is a schematic structural view of the armrest plate when lifted to a maximum angle.

In the figure: the handrail plate comprises a handrail plate 1, a supporting seat 2, a rotating rod 3, a sleeve 4, a screw rod 5, a lower limiting plate 6, a limiting plate 7, a return spring 8, a supporting tube 9, a nut 10, an upper limiting block 11, one-way teeth 12, non-return teeth 13, a positioning hole 14, a side plate 15, a rear plate 16 and an avoiding groove 17.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present application, it is to 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 those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

The terms "first", "second" and "first" 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 defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art.

The following is a description of preferred embodiments of the present invention with reference to the accompanying drawings.

The utility model provides a structure is adjusted to handrail case hand rest, including stay tube 9, install supporting seat 2 on the stay tube 9, it has handrail board 1 to articulate on the supporting seat 2, be equipped with one-way tooth 12 on the supporting seat 2, the last hinge of handrail board 1 is equipped with carries out one-way spacing limiting plate 7 to one-way tooth 12, be equipped with non return tooth 13 on the limiting plate 7, non return tooth 13 block is on one-way tooth 12, install on handrail board 1 and be used for when one-way tooth 12 is crossed to non return tooth 13, drive non return tooth 13 and one-way tooth 12 reset spring 8 that breaks away from the block state. Referring to the attached drawing 1, after adopting above-mentioned structure, set up one-way tooth 12 on supporting seat 2, set up non return tooth 13 on limiting plate 7, non return tooth 13 is spacing to one-way tooth 12, handrail board 1 can only be lifted on, when handrail board 1 lifting to limiting plate 7 and one-way tooth 12 can the complex terminal position, on continuing to lift handrail board 1, reset spring 8 pulling limiting plate 7 rotates this moment, non return tooth 13 on the limiting plate 7 no longer takes place the cooperation with one-way tooth 12, non return tooth 13 no longer carries on spacingly to one-way tooth 12, handrail board 1 can fall down this moment, this device structure is pleasing to the eye reliable, high durability and convenient use, can conveniently adjust the lifting angle of handrail board 1.

Referring to fig. 2, regarding the specific structure of the return spring 8, the return spring 8 is a tension spring, one end of the tension spring is connected to the armrest plate 1, and the other end of the tension spring is connected to the limit plate 7. Regarding the connection structure between the tension spring and the limiting plate 7, the limiting plate 7 is provided with a positioning hole 14, the positioning hole 14 is located at one end far away from the non-return tooth 13, and the tension spring is connected with the positioning hole 14.

Referring to fig. 1 and 3, a sleeve 4 is sleeved on a support tube 9, the support tube 9 is inserted into the sleeve 4, the support tube 9 is in sliding fit with the sleeve 4, and a positioning device for locking and positioning the support tube 9 is installed on the sleeve 4. The supporting tube 9 can slide up and down along the sleeve 4, so as to adjust the height of the handrail plate 1 up and down, so that a driver can adjust the handrail plate 1 to be suitable for the height of the driver, and the positioning device can lock the height of the supporting tube 9 up and down. Regarding the specific structure of the positioning device, the positioning device comprises a nut 10 mounted on the side of the sleeve 4, a screw 5 is screwed on the nut 10, and the screw 5 passes through the sleeve 4 and abuts against the support tube 9.

Referring to fig. 1 and 5, side plates 15 are provided on both left and right sides of the balustrade panel 1, the two side plates 15 are spaced apart from each other and extend downward, a rear plate 16 is provided on the rear side of the balustrade panel 1, and the rear plate 16 extends downward. Supporting seat 2 and limiting plate 7, extension spring all are located handrail board 1's downside for above structure does not expose, and the structure is more pleasing to the eye.

Referring to fig. 5, in order to control the maximum lifting angle of the balustrade panel 1, the rear plate 16 is provided with a lower limiting plate 6 for controlling the maximum lifting angle of the balustrade panel 1, the lower limiting plate 6 is located behind the supporting base 2, and when the balustrade panel 1 is lifted to the maximum angle, the lower limiting plate 6 is pressed against the rear portion of the supporting base 2. In order to control the maximum falling angle of the balustrade panel 1, the upper limit block 11 for controlling the maximum falling angle of the balustrade panel 1 is provided on the side plate 15, the upper limit block 11 is located above the support base 2, and when the balustrade panel 1 falls to the maximum falling angle, the upper limit block 11 is pressed against the rear portion of the support base 2.

Referring to fig. 2, regarding the specific structure of the one-way teeth 12, the one-way teeth 12 are ratchet teeth, which are provided in plurality and located at the front side of the support base 2. The one-way teeth 12 are similar to ratchet teeth on a ratchet wheel, while the limit plate 7 is similar to a pawl, and a plurality of ratchet teeth enable the handrail plate 1 to have a plurality of different gears. The supporting seat 2 is provided with a rotating rod 3, and the handrail plate 1 is hinged on the supporting seat 2 through the rotating rod 3. The limiting plate 7 is provided with an avoiding groove 17, and the avoiding groove 17 is positioned at the lower side of the non-return tooth 13. When the handrail plate 1 is lifted to the tail end position where the limiting plate 7 and the unidirectional teeth 12 can be matched, the handrail plate 1 is continuously lifted, the reset spring 8 pulls the limiting plate 7 to rotate at the moment, the non-return teeth 13 on the limiting plate 7 are not matched with the unidirectional teeth 12, and the avoidance groove 17 is located at the matching position of the unidirectional teeth 12, so that the non-return teeth 13 are not limited to the unidirectional teeth 12.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims (10)

1. The utility model provides a structure is adjusted to handrail case hand rest, includes stay tube (9), a serial communication port, install supporting seat (2) on stay tube (9), it has handrail board (1) to articulate on supporting seat (2), be equipped with one-way tooth (12) on supporting seat (2), the hinge is equipped with and carries out one-way spacing limiting plate (7) to one-way tooth (12) on handrail board (1), be equipped with non return tooth (13) on limiting plate (7), non return tooth (13) block is on one-way tooth (12), install on handrail board (1) and be used for when non return tooth (13) are crossed in limiting plate (7), drive non return tooth (13) and one-way tooth (12) reset spring (8) that break away from the block state.

2. The armrest box hand rest adjusting structure of claim 1, wherein the return spring (8) is a tension spring, one end of the tension spring is connected to the armrest plate (1), and the other end of the tension spring is connected to the limit plate (7).

3. The armrest box hand rest adjusting structure as claimed in claim 2, wherein the limiting plate (7) is provided with a positioning hole (14), the positioning hole (14) is located at one end far away from the non-return tooth (13), and the tension spring is connected with the positioning hole (14).

4. The hand rest adjusting structure of the armrest box according to claim 1, characterized in that a sleeve (4) is sleeved on the supporting tube (9), the supporting tube (9) is inserted in the sleeve (4), the supporting tube (9) is in sliding fit with the sleeve (4), and a positioning device for locking and positioning the supporting tube (9) is installed on the sleeve (4).

5. The armrest box hand rest adjusting structure as claimed in claim 4, characterized in that the positioning device comprises a nut (10) installed on the side of the sleeve (4), a screw (5) is screwed on the nut (10), and the screw (5) is pressed against the support tube (9) through the sleeve (4).

6. The armrest box hand rest adjusting structure as claimed in claim 1, wherein the armrest plate (1) is provided with side plates (15) at left and right sides thereof, the two side plates (15) are spaced apart from each other and extend downward, the armrest plate (1) is provided with a rear plate (16) at a rear side thereof, and the rear plate (16) extends downward.

7. The armrest box hand rest adjusting structure as claimed in claim 6, characterized in that a lower limit plate (6) for controlling the maximum lifting angle of the armrest plate (1) is provided on the rear plate (16), the lower limit plate (6) is located behind the support base (2), and when the armrest plate (1) is lifted to the maximum angle, the lower limit plate (6) is pressed against the rear of the support base (2).

8. The armrest box hand rest adjusting structure as claimed in claim 6, characterized in that the upper limit piece (11) for controlling the maximum falling angle of the armrest plate (1) is provided on the side plate (15), the upper limit piece (11) is provided above the support base (2), and when the armrest plate (1) falls to the maximum angle, the upper limit piece (11) is pressed against the rear of the support base (2).

9. The armrest box hand rest adjustment structure as claimed in claim 1, characterized in that said one-way tooth (12) is a ratchet tooth provided in plurality and located at the front side of the support base (2).

10. The armrest box hand rest adjusting structure of claim 9, wherein the limiting plate (7) is provided with an avoidance groove (17), and the avoidance groove (17) is located at a lower side of the check tooth (13).

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