CN201228363Y - Adjustable hand rail for hydraulic shovel - Google Patents

Abstract

The utility model discloses an adjustable handrail of a hydraulic excavator, which comprises a left handrail body and a right handrail body, a support board, a return board, adjusting knobs, T-shaped grooves, T-shaped jacking blocks, a slotted hole and a screw. Handrail bodies are divided into the left handrail body and the right handrail body which are respectively installed on the left side and the right side of a seat control box; the structural characteristics and the connection relations of the left handrail body and the right handrail body satisfy mutual mirror image relation; the T-shaped grooves are arranged on the handrail bodies; the T-shaped jacking blocks are arranged on the top of the return board; the T-shaped jacking blocks are blocked in the T-shaped grooves, and the T-shaped jacking blocks and the T-shaped grooves can slide mutually; the slotted hole and the screw are respectively opened on a slipper block and the support board; the two adjusting knobs are respectively screwed to the screw after passing through the slotted hole; and when the adjusting knobs are loosed, the relative positions of the slipper block and the support board can be optionally adjusted up and down, and the adjusting knobs are screwed down to increase the friction force between the slipper block and the support board, so as to fix the position of the slipper block. The adjusting knobs can be loosed and tightened manually without tools, and the handrail bodies can be adjusted optionally to increase the comfortable feeling of an operator.

Description

Hydraulic Excavator Adjustable Handrail

technical field

The utility model relates to a handrail of a hydraulic excavator, in particular to an adjustable handrail of a hydraulic excavator.

Background technique

At present, due to the limited internal space of some small hydraulic excavators, the seat does not have armrests. In order to increase the operating comfort, independent armrests must be installed. Ordinary independent armrests cannot adjust the position, or can only adjust the position in one direction, and tools such as wrenches are required for adjustment, which cannot meet the comfort requirements of different operators.

Contents of the invention

The purpose of this utility model is to provide a handrail, which is located on the left and right sides of the operating position when installed. The whole set of handrails is installed on the fixed frame with bolts and can be adjusted in the front, rear and up and down directions without using tools such as wrenches. It solves the problem that the position of the handrail of the hydraulic excavator cannot be adjusted at will or can only be adjusted in one direction and is inconvenient to adjust, and the adjustable handrail of the hydraulic excavator can meet the comfort requirements of different operators.

The technical solution of the utility model is such that a "T" shaped groove is arranged on the handrail body, and the slide block is sleeved on the "T" shaped groove, which can slide freely in the front and rear directions. There is a screw hole on the slider, and the adjustment knob is screwed on the screw hole. When the knob is loosened, the position of the armrest body relative to the slider can be adjusted freely. When the adjustment knob is tightened, the friction between the armrest body and the slider increases, thereby fixing the armrest. body. There are long holes and screw holes on the slider and the support plate respectively. Two adjustment knobs pass through the long holes and screw on the screw holes. When the adjustment knobs are loosened, the relative position of the slider and the support plate can be adjusted up and down at will. The knob increases the frictional force between the slider and the support plate, thereby fixing the position of the slider. The adjustment knob can be tightened manually, no tools required. According to the ergonomic design, the armrest body is divided into a left armrest body and a right armrest body, and the left and right armrest bodies are mirror images of each other. The position of the armrest body should be adjusted to make the operator feel most comfortable when operating. It includes an armrest body, a slide plate, and an adjustment knob. It is characterized in that the left armrest body and the hand body are respectively installed on the left and right sides of the seat control box, and the structural features and installation relationship of the right armrest body (1) and the left armrest body (2) are mirror images of each other. The armrest body has a T-shaped groove, and the top of the corresponding slide plate has a T-shaped top block, and the T-shaped top block is inserted into the T-shaped groove, and the support plate and the slide plate are provided with adjustment knobs.

There is a long hole in the middle of the support plate and the sliding plate, and there is a screw hole at the bottom of the support plate and the sliding plate. The long hole is larger than the outer diameter of the adjustment knob. The screw hole is matched with the thread of the adjustment knob. Spin together.

The utility model has the advantage that the position of the handrail can be adjusted independently in the front, rear and up and down directions, and the operator can directly manually adjust the position of the handrail according to his own needs without tools. The handrail body is designed according to ergonomics, which increases comfort, has a simple structure, is easy to manufacture, and is easy to install and use. It can be applied to various types of hydraulic excavators.

Description of drawings

The structural constitution of the present utility model is such:

Fig. 1 is the front view of the utility model adjustable armrest.

Fig. 2 is the right side view of Fig. 1 of the utility model.

Fig. 3 is the top view of the utility model Fig. 1 with the right handrail body.

Fig. 4 is the top view of the utility model Fig. 1 with the left handrail body.

Fig. 5 is an A-A sectional view of Fig. 1 of the present invention.

Fig. 6 is a partial sectional view of the T-shaped groove of the present invention.

Among Fig. 1～Fig. 6: right armrest body (1), left armrest body (2), bolt (3), support plate (4), slide plate (5), adjusting knob (6), T-shaped groove (7), Screw hole (8), slotted hole (9), top block (10).

Detailed ways

The specific implementation of the utility model is as follows, with reference to accompanying drawings 1 to 6, the armrest body is designed according to ergonomics and is divided into a right armrest body (1) and a left armrest body (2), a left armrest body (2) and a right armrest body (2). The armrest bodies (1) are mirror images of each other (hereinafter the right armrest body (1) and the left armrest body (2) are collectively referred to as armrest bodies). The armrest body is made of non-toxic self-skinning foam material, which increases the comfort and safety of contact with the skin and reduces weight at the same time. Both sides of the armrest protrude, the middle is concave, forming a large arc, and the rear is curved downward and converges to the middle to increase the contact area with the arm, thereby increasing comfort.

Embed "T" shape channel steel piece in handrail body (1,2), screw hole (8) is opened on the slide plate (5), be enclosed within in the " T " shape groove of handrail body (1,2), handrail body can Swipe back and forth freely. The adjustment knob (6) is screwed on the screw hole (8) of the slide plate (5), and when the adjustment knob (6) is tightened, the friction between the armrest body (1, 2) and the slide plate (5) increases, thereby the armrest body (1 , 2) Fixed.

Long holes (9) and screw holes (8) are all arranged on the support plate (4) and the slide plate (5), and two adjustment knobs (6) pass through the long holes (9) and are screwed on the screw holes (8) respectively. The support plate (4) and the slide plate (5) can slide up and down relatively freely. When the adjustment knob (6) is tightened, the support plate (4) and the slide plate (5) are clamped by the adjustment knob (6), and the support plate (4) and the slide plate (5) produce frictional force, thereby fix the relative position between support plate (4) and slide plate (5).

The armrest body (1, 2) is divided into a left armrest body (2) and a right armrest body (1), which are respectively installed on the left and right sides of the control box next to the operating seat, and the left armrest body (2) and the right armrest body (1) The structural features and installation relationship of the mirror image. Right and left armrest body (1,2) has T-shaped groove (7) corresponding with slide plate (5) top T-shaped top block (10), and T-shaped groove (7) has T-shaped top block (10), T-shaped top Block (10) snaps in T font groove (7), and T font top block (10) can slide mutually in T font groove (7). There is a long hole (9) in the middle of the support plate (4) and the slide plate (5), and there is a screw hole (8) at the bottom of the support plate (4) and the slide plate (5). ) has a large outer diameter and is elongated. The screw hole (8) and the screw thread of the adjusting knob (6) match the size, and the adjusting knob (6) is screwed with the screw hole (8) after passing through the long hole (9). The whole handrail is fixed on the control box of the hydraulic excavator with bolts (3). The position of the armrest body can be manually adjusted at any time according to the needs of the operator, and the adjustment range of the armrest body can meet the needs of different operators from short to tall.

Claims (2)

1, a kind of hydraulic crawler excavator adjustable handrail, comprise armrest body, slide plate, adjusting knob, it is characterized in that left armrest body (2), right armrest body (1) are installed in the left and right sides of seat operation panel respectively, right armrest body (1) and the mutual mirror image of left armrest body (2), right armrest body (1), left armrest body (2) have T font groove (7), corresponding slide plate (5) top has T font jacking block (10), T font jacking block (10) to snap in T font groove (7) lining, and support plate (4) is equipped with adjusting knob (6) with slide plate (5).

2, according to the described hydraulic crawler excavator adjustable handrail of claim 1, it is characterized in that support plate (4) and slide plate (5) centre position have slotted hole (9), support plate (4) and slide plate (5) bottom have screw (8), slotted hole (9) is bigger than adjusting knob (6) external diameter, screw (8) is joined out size with the screw thread of adjusting knob (6), and adjusting knob (6) screws with screw (8) by slotted hole (9) back.

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