CN210244188U

CN210244188U - Adjustable control box of engineering machinery

Info

Publication number: CN210244188U
Application number: CN201921238462.1U
Authority: CN
Inventors: Yibing Wang; 王一兵; Jianyong Zhang; 张建永; Hongchao Ma; 马宏超
Original assignee: Shandong Lingong Construction Machinery Co Ltd
Current assignee: Shandong Lingong Construction Machinery Co Ltd
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-04-03
Anticipated expiration: 2029-07-31

Abstract

The utility model discloses an adjustable control box of engineering machine tool, it belongs to the engineering machine tool field. The valve mounting seat is provided with an operating handle, the lower part of the valve mounting seat is hinged with one end of a cover plate group, the other end of the cover plate group is hinged with a base assembly, an air spring is hinged between the valve mounting seat and the cover plate group, and an elastic device is arranged between the cover plate group and the base assembly; the valve mounting seat is provided with a bent plate, the middle part of the bent plate is hinged with the valve mounting seat, one end of the bent plate is hinged with the extending end of the air spring, and the other end of the bent plate is provided with an opening handle. The utility model discloses low in production cost, convenient operation, labour saving and time saving, stability is high, has avoided the control box to rock in the use. The utility model discloses mainly used control box.

Description

Adjustable control box of engineering machinery

Technical Field

The utility model belongs to the engineering machine tool field, specifically speaking especially relates to an adjustable control box of engineering machine tool.

Background

In the field of construction machinery, a pilot valve has been gradually used instead of a mechanical lever to manipulate the movement of a working device, and thus a manipulation case is required for installation of the pilot valve. The existing control box usually consists of a fixed bracket and a control handle, and cannot move after arrangement is finished. In order to adapt to the operation habits of drivers with different heights, some engineering machinery begins to use an adjustable control box, the adjustable control box mainly adopts a connecting rod structure, a control handle is fixed on a connecting rod mechanism, an air spring and an unlocking air spring are added, and the adjustable range of the control box is between the minimum stroke and the maximum stroke of the air spring. When the air spring is unlocked by the deflector rod, the mechanism can move, and the adjustment of the control handle is realized. However, the existing adjustable control box cannot provide elasticity when the gas spring is locked, the connecting rod mechanism is only influenced by the gravity of the control handle, and the size deviation exists at the matching of the hinged point, so that the control box is easy to shake, and the control box needs larger force to control in the adjusting process, and is inconvenient to operate.

Disclosure of Invention

An object of the utility model is to overcome above-mentioned defect, provide an adjustable control box of engineering machine tool, its low in production cost, convenient operation, labour saving and time saving, stability is high, has avoided the control box to rock in the use.

The adjustable control box of the engineering machinery comprises a valve installation seat, a control handle is arranged on the valve installation seat, the lower portion of the valve installation seat is hinged to one end of a cover plate group, the other end of the cover plate group is hinged to a base assembly, an air spring is hinged between the valve installation seat and the cover plate group, and an elastic device is arranged between the cover plate group and the base assembly.

Furthermore, a bent plate is arranged on the valve mounting seat, the middle of the bent plate is hinged with the valve mounting seat, one end of the bent plate is hinged with the extending end of the air spring, and the other end of the bent plate is provided with an opening handle.

Furthermore, a fixed handle matched with the opening handle is arranged on the valve mounting seat.

Furthermore, the cover plate group comprises a front cover plate and a rear cover plate, and two ends of the front cover plate and two ends of the rear cover plate are respectively hinged with two sides of the valve installation seat and two sides of the base assembly through pin shafts.

Furthermore, a friction-resistant nylon sleeve is arranged at the hinged position of the pin shaft.

Further, the valve mounting seat comprises a fixing plate, a left side plate and a right side plate are arranged on two sides of the fixing plate respectively, and the control handle is connected with the fixing plate.

Furthermore, the base assembly comprises an upper plate and a bottom plate, a side bending plate and a base side plate are arranged between the upper plate and the bottom plate, a spring fixing plate is arranged on the upper plate, one end of an elastic device is connected with the spring fixing plate, and the other end of the elastic device is connected with the front cover plate.

Preferably, the elastic device is a tension spring or an elastic rubber rope.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model adopts the valve mounting seat, the cover plate group and the base assembly to form a four-bar linkage mechanism to replace the original fixed structure, thereby improving the operation comfort and greatly improving the adjustment flexibility of the operating handle;

2. the elastic device is additionally arranged, when the gas spring is locked, the elastic device provides pulling force, the pulling force is superposed with the self gravity of the operating handle, the acting force at the hinged position of the cover plate group and the base assembly is always fixed in one direction, and the possibility of shaking of the four-bar mechanism is reduced;

3. the friction-resistant nylon sleeve is additionally arranged at the hinged position of the valve mounting seat, the base assembly and the cover plate group, the size error between the pin shaft and the pin shaft hole is reduced by the friction-resistant nylon sleeve, so that the shaking amount of the operating handle is further reduced, the friction-resistant nylon sleeve has a wear-resistant effect, and the service life of the pin shaft is prolonged.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a rear view of the present invention;

FIG. 3 is a schematic structural view of the gas spring at maximum travel;

FIG. 4 is a schematic view of the gas spring at a minimum travel.

In the figure, 1, a control handle; 2. a valve mounting seat; 3. a cover plate group; 4. a gas spring; 5. an elastic device; 6. a base assembly; 21. fixing a handle; 22. a fixing plate; 23. opening the handle; 24. a right side plate; 25. bending a plate; 26. a left side plate; 31. a rear cover plate; 32. a front cover plate; 33. a pin shaft; 34. a friction-resistant nylon sleeve; 41. an air spring seat; 61. a side bending plate; 62. a base plate; 63. an upper plate; 64. a base side plate.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1, the adjustable control box of the engineering machinery comprises a valve installation seat 2, a control handle 1 is arranged on the valve installation seat 2, the lower part of the valve installation seat 2 is hinged with one end of a cover plate group 3, the other end of the cover plate group 3 is hinged with a base assembly 6, the cover plate group 3 comprises a front cover plate 32 and a rear cover plate 31, and two ends of the front cover plate 32 and two ends of the rear cover plate 31 are respectively hinged with the valve installation seat 2 and two sides of the base assembly 6 through pin shafts 33; an air spring 4 is hinged between the valve mounting seat 2 and the cover plate group 3, and an elastic device 5 is arranged between the cover plate group 3 and the base assembly 6.

Be equipped with the bent plate 25 on the valve mount pad 2, the bent plate 25 middle part is articulated with valve mount pad 2, bent plate 25 one end is articulated with the end that stretches out of air spring 4, the end that stretches out of air spring 4 is connected with bent plate 25 through air spring seat 41, the other end and the back shroud 31 of air spring 4 are articulated, the bent plate 25 other end is equipped with opens handle 23, as shown in fig. 2, be equipped with on the valve mount pad 2 and open handle 23 matched with fixed handle 21, when the operator pinches tightly fixed handle 21 and open handle 23 simultaneously, the bent plate 25 rotates and can be with the unblock of air spring 4.

The valve mounting seat 2 comprises a fixing plate 22, a left side plate 26 and a right side plate 24 are respectively arranged on two sides of the fixing plate 22, and the control handle 1 is connected with the fixing plate 22; the base assembly 6 comprises an upper plate 63 and a bottom plate 62, a side bending plate 61 and a base side plate 64 are arranged between the upper plate 63 and the bottom plate 62, a spring fixing plate 35 is arranged on the upper plate 63, one end of the elastic device 5 is connected with the spring fixing plate 35 or other fixing parts, and the other end of the elastic device 5 is connected with the front cover plate 32.

The utility model discloses when making, elastic device 5 adopts extension spring or elasticity rubber rope, and the pulling force of elastic device 5 is confirmed according to the stroke of air spring 4, and elastic device 5 is parallel with air spring 4 or the angle between the two is less than 45 degrees after the installation, and simultaneously when installation back air spring 4 was at the minimum stroke, the pulling force of elastic device 5 was less than the elasticity of air spring 4; when the gas spring 4 is in the maximum stroke, the pulling force of the elastic device 5 is larger than the elastic force of the gas spring 4; be equipped with antifriction nylon cover 34 between round pin axle 33 and the round pin shaft hole, and antifriction nylon cover 34 glues with the non-contact side of round pin axle 33 during the assembly and handles, reduces articulated department size fit error to further reduce the shake momentum of bar handle 1.

The utility model discloses at the during operation, elastic device 5 is in tensile state all the time, and when air spring 4 was in the locking state, the four-bar linkage that valve mount pad 2, apron group 3 and base assembly 6 constitute was also in the locking state, and at this moment, elastic device 5 provided certain pulling force, and with the stack of manipulation handle 1 self gravity, made the effort of the articulated department of round pin axle 33 be fixed in a direction all the time, reduced the possibility that four-bar linkage rocked, at this moment, the operator can carry out the operation;

as shown in fig. 3 and 4, the adjustment process of the control box during operation is divided into two cases:

1. the gas spring 4 is in a minimum stroke state and moves to the maximum stroke of the gas spring 4: at this time, the pulling force of the elastic device 5 is smaller than the elastic force of the gas spring 4, and after the two are combined, the direction is towards the right in fig. 4, an operator simultaneously grips the fixed handle 21 and the opening handle 23, the bent plate 25 rotates to unlock the gas spring 4, the fixed handle 21 and the opening handle 23 are pulled rightwards while gripping, and at this time, the operator provides a small force, so that the state shown in fig. 3 can be obtained;

2. the gas spring 4 is in the maximum stroke state and moves to the minimum stroke of the gas spring 4: because the gas spring 4 is in the extended state, at this time, the elastic device 5 is further stretched, the pulling force of the elastic device 5 is greater than the elastic force of the gas spring 4, and after the two are combined, the direction is towards the left in fig. 3, the operator simultaneously grips the fixed handle 21 and the opening handle 23, the bent plate 25 rotates to unlock the gas spring 4, and the fixed handle 21 and the opening handle 23 are pushed leftwards while gripping, at this time, the operator provides a small force, and the state shown in fig. 4 can be realized.

Claims

1. The utility model provides an adjustable control box of engineering machine tool, includes valve mount pad (2), is equipped with operating handle (1) on valve mount pad (2), its characterized in that: the lower part of the valve mounting seat (2) is hinged with one end of the cover plate group (3), the other end of the cover plate group (3) is hinged with the base assembly (6), an air spring (4) is hinged between the valve mounting seat (2) and the cover plate group (3), and an elastic device (5) is arranged between the cover plate group (3) and the base assembly (6); the valve mounting seat (2) is provided with a bent plate (25), the bent plate (25) is hinged with the valve mounting seat (2), one end of the bent plate (25) is hinged with the extending end of the gas spring (4), and the other end of the bent plate (25) is provided with an opening handle (23).

2. The adjustable control box of engineering machinery according to claim 1, characterized in that: and a fixed handle (21) matched with the opening handle (23) is arranged on the valve mounting seat (2).

3. The adjustable control box of engineering machinery according to claim 1 or 2, characterized in that: the cover plate group (3) comprises a front cover plate (32) and a rear cover plate (31), and two ends of the front cover plate (32) and the rear cover plate (31) are respectively hinged with two sides of the valve installation seat (2) and two sides of the base assembly (6) through pin shafts (33).

4. The adjustable control box of engineering machinery according to claim 3, characterized in that: and a friction-resistant nylon sleeve (34) is arranged at the hinged position of the pin shaft (33).

5. The adjustable control box of engineering machinery according to claim 3, characterized in that: the valve mounting seat (2) comprises a fixing plate (22), a left side plate (26) and a right side plate (24) are arranged on two sides of the fixing plate (22) respectively, and the control handle (1) is connected with the fixing plate (22).

6. The adjustable control box of engineering machinery according to claim 3, characterized in that: the base assembly (6) comprises an upper plate (63) and a bottom plate (62), a side bending plate (61) and a base side plate (64) are arranged between the upper plate (63) and the bottom plate (62), a spring fixing plate (35) is arranged on the upper plate (63), one end of an elastic device (5) is connected with the spring fixing plate (35), and the other end of the elastic device (5) is connected with a front cover plate (32).

7. The adjustable control box of engineering machinery according to claim 1, characterized in that: the elastic device (5) adopts a tension spring or an elastic rubber rope.