CN215883415U - Vertical adjusting mechanism for excavator handrail - Google Patents

Abstract

The utility model belongs to the technical field of excavator handrails, and particularly relates to an upper and lower adjusting mechanism of an excavator handrail, which comprises an outer frame, wherein the outer wall of the outer frame is provided with a plurality of positioning holes, the inner part of the outer frame is connected with an inner frame in a sliding manner, a shaft lever is arranged in the inner frame, a wrench is arranged outside the shaft lever, one end of the wrench is rotatably connected with a connecting rod, a baffle is fixed below the inner part of the inner frame and is connected with the bottom of the connecting rod in a sliding manner, a bent plate is fixed below the inner part of the inner frame, a U-shaped plate is arranged in the bent plate, a small plate is arranged in the U-shaped plate, a pin shaft is arranged on the outer wall of the small plate, a second return spring is sleeved on the outer wall of the pin shaft, a handrail assembly is arranged at the top of the inner frame, a first return spring is arranged below the outer wall of the connecting rod, the bottom of the connecting rod and the top of the U-shaped plate are respectively of an inclined plane structure, so that the existing handrail box can be used for supporting arms, but the adjustability is poor, can not satisfy the needs of users and has single use function.

Description

Vertical adjusting mechanism for excavator handrail

Technical Field

The utility model belongs to the technical field of excavator handrails, and particularly relates to an upper and lower adjusting mechanism for an excavator handrail.

Background

Most of seats in a cab in the working process of an excavator in engineering machinery directly consist of a cushion and a backrest, when a driver sits on the seats for rest, the hands have no supporting points and are easy to cause ache, and the rest of the driver is influenced; in view of the problems that the prior excavator handrails are exposed in the using process, the excavator handrail needs to be structurally improved and optimized.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides an up-and-down adjusting mechanism for a handrail of an excavator, which has the characteristic of conveniently adjusting the height position of the handrail.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an excavator handrail is adjustment mechanism from top to bottom, includes the frame, a plurality of locating hole has been seted up to the outer wall of frame, the inside sliding connection of frame has the inner tower, the internally mounted of inner tower has the axostylus axostyle, the externally mounted of axostylus axostyle has the spanner, the one end of spanner is rotated and is connected with the connecting rod, the inside below of inner tower is fixed with the baffle, and the bottom sliding connection of baffle and connecting rod, the inside below of inner tower is fixed with the bent plate, the internally mounted of bent plate has the U template, the internally mounted of U template has the platelet, the round pin axle is installed to the outer wall of platelet, the outer wall cover of round pin axle has second reset spring, the handrail assembly is installed at the top of inner tower.

As a preferable technical scheme of the upper and lower adjusting mechanism of the excavator handrail, a first return spring is arranged below the outer wall of the connecting rod.

As the preferable technical scheme of the upper and lower adjusting mechanism of the excavator handrail, the bottom of the connecting rod and the top of the U-shaped plate are both of inclined plane structures.

According to the preferable technical scheme of the upper and lower adjusting mechanism of the excavator handrail, a storage opening is formed in the handrail assembly, a cover plate is arranged above the storage opening, a long positioning frame is fixed at one end of the bottom of the cover plate, the long positioning frame is rotatably connected with a first roller, a short positioning frame is fixed at one end of the bottom of the cover plate, the short positioning frame is rotatably connected with a second roller, a first sliding groove is fixed at one end of the inner wall of the handrail assembly, the second roller is located in the first sliding groove, a second sliding groove is formed in one side below the first sliding groove, and the first roller is located in the second sliding groove.

According to the preferable technical scheme of the upper and lower adjusting mechanism of the excavator handrail, a third sliding groove is fixed at one end, far away from the long positioning frame, of the bottom of the cover plate, a third roller is installed at one end, far away from the second sliding groove, of the inner wall of the handrail assembly, and the third roller is located inside the third sliding groove.

As a preferable technical scheme of the upper and lower adjusting mechanism of the excavator handrail, a spongy cushion is arranged on the top surface of the handrail assembly.

Compared with the prior art, the utility model has the beneficial effects that: drive the axostylus axostyle clockwise rotation through upwards lifting up the spanner, with connecting rod downstream, connecting rod lower part inclined plane promotes the U template backward, the round pin axle simultaneous movement on the U template is fixed in the pulling, when round pin axle breaks away from the locating hole, frame up-and-down motion can be followed to the inner tower, loosen the spanner, under second reset spring's effect, drive round pin axle forward motion, the pressure that kick-backs through first reset spring simultaneously drives connecting rod upward movement, insert in the locating hole until the round pin axle, thereby fix the handrail at the height that needs, be of value to the height of nimble regulation handrail, it can be used to the support arm to have solved present handrail case, but the adjustability is poor, can't satisfy user of service's needs, the problem that service function is single.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic structural view of an up-down adjusting mechanism of a excavator handrail of the present invention;

FIG. 2 is a schematic cross-sectional view of the armrest adjustment mechanism of the present invention;

FIG. 3 is a schematic view of a portion of the adjustment mechanism of the present invention;

FIG. 4 is a schematic structural view of an inner cover mechanism of the armrest of the present invention;

FIG. 5 is a cross-sectional view of the armrest lid panel of the present invention shown closed;

FIG. 6 is a cross-sectional view of the armrest lid of the present invention shown open;

in the figure: 1. an outer frame; 2. positioning holes; 3. an inner frame; 4. a shaft lever; 5. a wrench; 6. a connecting rod; 7. bending a plate; 8. a first return spring; 9. a U-shaped plate; 10. a platelet; 11. a pin shaft; 12. a second return spring; 13. a handrail assembly; 14. a storage port; 15. a cover plate; 16. a long positioning frame; 17. a first roller; 18. a short positioning frame; 19. a second roller; 20. a first chute; 21. a second chute; 22. a third chute; 23. a third roller; 24. and a baffle plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1-6, the present invention provides the following technical solutions: an upper and lower adjusting mechanism for a excavator handrail comprises an outer frame 1, a plurality of positioning holes 2 are formed in the outer wall of the outer frame 1, an inner frame 3 is connected to the inner portion of the outer frame 1 in a sliding mode, a shaft rod 4 is installed inside the inner frame 3, a wrench 5 is installed outside the shaft rod 4, one end of the wrench 5 is connected with a connecting rod 6 in a rotating mode, a baffle 24 is fixed below the inner portion of the inner frame 3, the baffle 24 is connected with the bottom of the connecting rod 6 in a sliding mode, a bent plate 7 is fixed below the inner portion of the inner frame 3, a U-shaped plate 9 is installed inside the bent plate 7, a small plate 10 is installed inside the U-shaped plate 9, a pin shaft 11 is installed on the outer wall of the small plate 10, a second reset spring 12 is sleeved on the outer wall of the pin shaft 11, a handrail assembly 13 is installed on the top of the inner frame 3, in the embodiment, the wrench 5 is lifted upwards to drive the shaft rod 4 to rotate clockwise, the connecting rod 6 moves downwards, the inclined plane of the lower portion of the connecting rod 6 pushes the U-shaped plate 9 backwards, the pin shaft 11 fixed on the U-shaped plate 9 is pulled to move simultaneously, when the pin shaft 11 is separated from the positioning hole 2, the inner frame 3 can move up and down along the outer frame 1, the wrench 5 is loosened, and the pin shaft 11 is driven to move forward under the action of the second return spring 12.

Specifically, first reset spring 8 is installed to the outer wall below of connecting rod 6, and the pressure that kick-backs through first reset spring 8 in this embodiment drives connecting rod 6 upward movement, inserts in locating hole 2 until round pin axle 11.

Specifically, the bottom of connecting rod 6 and the top of U template 9 all are the inclined plane structure respectively, make connecting rod 6 drive when reciprocating in this embodiment U template 9 and remove about.

Specifically, a storage opening 14 is formed in the armrest assembly 13, a cover plate 15 is arranged above the storage opening 14, a long positioning frame 16 is fixed at one end of the bottom of the cover plate 15, the long positioning frame 16 is rotatably connected with a first roller 17, a short positioning frame 18 is fixed at one end of the bottom of the cover plate 15, the short positioning frame 18 is rotatably connected with a second roller 19, a first chute 20 is fixed at one end of the inner wall of the armrest assembly 13, the second roller 19 is located in the first chute 20, a second chute 21 is arranged on one side below the first chute 20, the first roller 17 is located in the second chute 21, in the embodiment, the cover plate 15 is opened by sliding, the long positioning frame 16 is matched to drive the first roller 17 to slide along the inside of the second chute 21, and the short positioning frame 18 is matched to drive the second roller 19 to slide along the inside of the first chute 20, so that the cover plate 15 is flush with the top of the armrest assembly 13 when closed, avoid producing unsmooth, produce the discomfort when leading to driver's arm to support.

Specifically, the end of the bottom of the cover plate 15, which is far away from the long positioning frame 16, is fixed with a third sliding groove 22, the end of the inner wall of the armrest assembly 13, which is far away from the second sliding groove 21, is installed with a third roller 23, and the third roller 23 is located inside the third sliding groove 22, in this embodiment, when the cover plate 15 is opened by sliding, the third sliding groove 22 is driven to move, and the third roller 23 is limited, so that the cover plate 15 can move stably.

Specifically, the top surface of the armrest assembly 13 is provided with a foam-rubber cushion, which improves the comfort of the driver when supporting his arms in this embodiment.

The working principle and the using process of the utility model are as follows: firstly, the spanner 5 is lifted upwards to drive the shaft lever 4 to rotate clockwise, the connecting rod 6 moves downwards, the inclined plane at the lower part of the connecting rod 6 pushes the U-shaped plate 9 backwards, the pin shaft 11 fixed on the U-shaped plate 9 is pulled to move simultaneously, when the pin shaft 11 is separated from the positioning hole 2, the inner frame 3 can move up and down along the outer frame 1, the spanner 5 is loosened, under the action of the second reset spring 12, the pin shaft 11 is driven to move forwards, meanwhile, the connecting rod 6 is driven to move upwards through the resilience pressure of the first reset spring 8 until the pin shaft 11 is inserted into the positioning hole 2, and therefore the handrail is fixed at the required height.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The utility model provides an dig quick-witted handrail adjustment mechanism from top to bottom, includes frame (1), its characterized in that: the outer wall of the outer frame (1) is provided with a plurality of positioning holes (2), the inner part of the outer frame (1) is connected with an inner frame (3) in a sliding way, a shaft lever (4) is arranged inside the inner frame (3), a spanner (5) is arranged outside the shaft lever (4), one end of the wrench (5) is rotatably connected with a connecting rod (6), a baffle plate (24) is fixed at the lower part of the inner frame (3), the baffle (24) is connected with the bottom of the connecting rod (6) in a sliding way, a bent plate (7) is fixed under the inner part of the inner frame (3), a U-shaped plate (9) is arranged inside the bent plate (7), a small plate (10) is arranged inside the U-shaped plate (9), the outer wall of platelet (10) is installed round pin axle (11), the outer wall cover of round pin axle (11) has second reset spring (12), handrail assembly (13) are installed at the top of interior frame (3).

2. The excavator handrail up-down adjusting mechanism of claim 1, wherein: and a first return spring (8) is arranged below the outer wall of the connecting rod (6).

3. The excavator handrail up-down adjusting mechanism of claim 1, wherein: the bottom of the connecting rod (6) and the top of the U-shaped plate (9) are both of an inclined plane structure.

4. The excavator handrail up-down adjusting mechanism of claim 1, wherein: storing mouth (14) have been seted up to the inside of handrail assembly (13), the inside top of storing mouth (14) is equipped with apron (15), the bottom one end of apron (15) is fixed with long locating rack (16), long locating rack (16) rotate and are connected with first gyro wheel (17), the bottom one end of apron (15) is fixed with short locating rack (18), short locating rack (18) rotate and are connected with second gyro wheel (19), the inner wall one end of handrail assembly (13) is fixed with first spout (20), and second gyro wheel (19) are located inside first spout (20), below one side of first spout (20) is equipped with second spout (21), and first gyro wheel (17) are located the inside of second spout (21).

5. The excavator handrail up-down adjusting mechanism of claim 4, wherein: the one end that long locating rack (16) was kept away from in the bottom of apron (15) is fixed with third spout (22), third gyro wheel (23) are installed to the one end that second spout (21) was kept away from to handrail assembly (13) inner wall, and third gyro wheel (23) are located inside third spout (22).

6. The excavator handrail up-down adjusting mechanism of claim 1, wherein: the top surface of the handrail assembly (13) is provided with a spongy cushion.

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