External working bucket of insulated boom truck

Abstract

The utility model relates to the technical field of high-altitude operation, in particular to an external working bucket of an insulated boom truck, which comprises a lower leveling oil cylinder, a main body of the lower leveling oil cylinder is rotatably arranged on a telescopic boom, a first driving rod of the lower leveling oil cylinder is rotatably connected with a connecting seat to drive the telescopic boom to rotate, and a second driving rod of the lower leveling oil cylinder is rotatably connected with the connecting seat to drive the telescopic boom to rotate. The telescopic arm and the connecting seat are hinged through a lower leveling oil cylinder to form a lower leveling triangular structure; the bottom end of the bracket is hinged to the telescopic arm, and the top end of the bracket is connected with a working platform; the problems that according to an existing leveling mechanism, an oil cylinder is internally arranged, installation is tedious, disassembly and repair are extremely difficult, interference is prone to occurring between the oil cylinder and the internal structure of an arm body, the oil cylinder is easy to install, disassembly and repair are easy, the structure is simple, the structure is simple, and the work efficiency is high are solved. And the leveling response speed and the leveling precision are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aerial work, in particular to an external working bucket of an insulating bucket arm vehicle. Background Art

[0002] Currently, users are increasingly demanding uninterrupted power supply. In response to this trend, companies are implementing the "uninterrupted power supply" requirement for distribution network maintenance. Live-line maintenance technology is increasingly being applied to distribution network line maintenance. Insulated boom trucks are specialized vehicles designed for performing equipotential work in locations with convenient transportation and complex wiring. They are typically capable of performing live, overhead work on lines greater than 10kV. As their application in the power industry grows, the working environment becomes increasingly complex. To prevent potential hazards during operation and ensure their safety and reliability, the structural design of these trucks must be continuously upgraded and improved.

[0003] When performing live work on an insulated boom truck, operators must carry insulated tools and stand on the work platform to reach the designated work point. The insulated boom's extension and retraction must remain within the effective insulation length for live work. A properly designed leveling mechanism can increase the effective insulation length. Furthermore, low leveling accuracy can cause the bucket to level slowly. If the leveling mechanism fails, the work platform may tilt relative to the horizontal during boom luffing and lifting, compromising operational safety and potentially leading to serious injuries or fatalities.

[0004] The existing leveling mechanism, although the oil cylinder is built-in and has a simple appearance, is relatively cumbersome to install and extremely difficult to disassemble and repair. Moreover, since the oil cylinder is hidden inside the insulating section, it is easy to interfere with the internal structure of the arm body, causing the risk of damage. At the same time, the design of the oil cylinder structure and the layout requirements of the oil cylinder position are also very demanding. Since the upper leveling oil cylinder is built-in, it is limited by the layout space and the cylinder diameter is small, resulting in reduced leveling response speed and leveling accuracy.

[0005] Therefore, the utility model provides an external working bucket of an insulated bucket truck. Utility Model Content

[0006] The purpose of the utility model is to propose an external working bucket of an insulated bucket arm truck, which solves the problem of the existing leveling mechanism with a built-in oil cylinder, which is cumbersome to install and extremely difficult to disassemble and repair, and easily interferes with the internal structure of the arm body. The oil cylinder is installed simply and is easy to disassemble and repair, thereby improving the leveling response speed and leveling accuracy.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solution: an external working bucket of an insulated boom truck, comprising:

[0008] A connecting seat, used for connecting with the vehicle body;

[0009] a telescopic arm, one end of which is rotatably mounted on the connecting seat;

[0010] a telescopic oil cylinder, rotatably mounted on the connecting seat, with the other end connected to the telescopic arm;

[0011] Also included is a leveling mechanism, including:

[0012] A lower leveling cylinder, wherein the main body of the lower leveling cylinder is rotatably provided on the telescopic arm, and the first driving rod of the lower leveling cylinder is rotatably connected to the connecting seat to drive the telescopic arm to rotate. The telescopic arm and the connecting seat are hingedly connected through the lower leveling cylinder to form a lower leveling triangle structure;

[0013] A bracket, wherein the bottom end of the bracket is hinged to the telescopic arm, and the top end of the bracket is connected to the working platform;

[0014] An upper leveling cylinder, the main body of the upper leveling cylinder is rotatably connected to the bracket, the second driving rod of the upper leveling cylinder is rotatably connected to the telescopic arm, and the bracket and the telescopic arm are hinged through the upper leveling cylinder to form an upper leveling triangle structure.

[0015] Preferably, the upper leveling cylinder and the lower leveling cylinder are connected in series in the same cavity. Compared with the lower leveling cylinder, the upper leveling cylinder has a larger cylinder diameter and a smaller cylinder stroke, so as to cooperate with the lower leveling cylinder to achieve non-proportional equal volume hydraulic leveling.

[0016] Preferably, the work platform and the bracket are connected by a worm gear, enabling the work platform to rotate ±90° about the mid-perpendicular axis of the bracket. The worm gear mechanism is driven by a hydraulic motor. The worm gear mechanism can be driven by a hydraulic or electric motor. The work platform and the bracket can be connected by a worm gear or a swing cylinder.

[0017] Preferably, the telescopic arm can perform a variable amplitude motion of -24° to 78° around the connection hinge of the connection seat.

[0018] Beneficial effects of the utility model:

[0019] 1. The utility model places the leveling mechanism outside so that the upper leveling oil cylinder is outside, which is convenient for installation, maintenance and replacement of the oil cylinder.

[0020] 2. The utility model increases the effective insulation length of the insulating arm by placing the leveling mechanism outside, and has better adaptability to working conditions.

[0021] 3. The utility model connects the upper and lower oil cylinders of the leveling mechanism in series in the same cavity, and performs non-proportional equal volume hydraulic leveling, which has a fast leveling response and high leveling accuracy, and the leveling error can be controlled within 1°.

[0022] 4. The utility model can increase the effective working height by arranging the upper leveling cylinder vertically. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the whole of the utility model.

[0024] In the figure: 1. Connecting base; 2. Telescopic arm; 3. Lower leveling cylinder; 4. Telescopic cylinder; 5. Working platform; 6. Leveling mechanism; 61. Bracket; 62. Upper leveling cylinder; 7. First driving rod; 8. Second driving rod. DETAILED DESCRIPTION

[0025] The following is a further description of the method of use of the present invention in conjunction with the accompanying drawings and specific implementation methods.

[0026] like Figure 1 As shown, an external working bucket of an insulated boom truck includes:

[0027] Connecting seat 1, used for connecting with the vehicle body;

[0028] a telescopic arm 2, one end of which is rotatably mounted on the connecting seat 1;

[0029] The telescopic oil cylinder 4 is rotatably mounted on the connecting seat 1, and the other end is connected to the telescopic arm 2;

[0030] Also included is a leveling mechanism 6, comprising:

[0031] The lower leveling cylinder 3, the main body of the lower leveling cylinder 3 is rotatably arranged on the telescopic arm 2, the first driving rod 7 of the lower leveling cylinder 3 is rotatably connected to the connecting seat 1 to drive the telescopic arm 2 to rotate, the telescopic arm 2 and the connecting seat 1 are hinged through the lower leveling cylinder 3 to form a lower leveling triangle structure; the lower leveling triangle structure is hinged by the telescopic arm 2, the lower leveling cylinder 3 and the connecting seat 1 and fixed with a pin shaft.

[0032] A bracket 61, wherein the bottom end of the bracket 61 is hinged to the telescopic arm 2, and the top end of the bracket 61 is connected to the working platform 5;

[0033] The upper leveling cylinder 62 has a main body rotatably connected to the bracket 61, and the second drive rod 8 of the upper leveling cylinder 62 is rotatably connected to the telescopic arm 2. The bracket 61 and the telescopic arm 2 are hingedly connected via the upper leveling cylinder 62 to form an upper leveling triangle structure. The upper leveling triangle structure is hingedly connected to the bracket 61, the telescopic arm 2, and the upper leveling cylinder 62 and fixed with a pin. The telescopic movement of the upper leveling cylinder 62 causes the bracket 61 to rotate about the hinge point of the telescopic arm 2. The upper leveling cylinder 62 is externally located to facilitate cylinder installation, maintenance, and replacement. Since the upper leveling cylinder 62 is arranged vertically, the effective operating height can be increased.

[0034] The upper leveling cylinder 62 and the lower leveling cylinder 3 are connected in series in the same cavity. Compared with the lower leveling cylinder 3, the upper leveling cylinder 62 has a larger cylinder diameter and a smaller cylinder stroke, so as to cooperate with the lower leveling cylinder 3 to realize non-proportional equal volume hydraulic leveling, thereby improving the leveling response speed and leveling accuracy. Through non-proportional equal volume hydraulic leveling, the leveling response is fast, the leveling accuracy is high, and the leveling error can be controlled within 1°.

[0035] The working platform 5 is connected to the bracket 61 via a worm gear, which enables the working platform 5 to rotate ±90° around the mid-perpendicular axis of the bracket 61. The worm gear mechanism is driven by a hydraulic motor, which keeps the working platform 5 stable and increases the effective working height.

[0036] The telescopic arm 2 can perform a -24° to 78° amplitude movement around the connection hinge point of the connecting seat 1. At the same time, the amplitude movement of the telescopic arm 2 will change the distance between the connection hinge points at both ends of the lower leveling cylinder 3 in the lower leveling triangle structure, thereby causing the lower leveling cylinder 3 to perform a telescopic movement.

[0037] Working process: When making work adjustments, first, the angle of the telescopic arm 2 is controlled by the telescopic cylinder 4 on the connecting seat 1, and then the angle of the telescopic arm 2 is slightly adjusted by the lower leveling cylinder 3 to control the extension of the telescopic arm 2 so that the working platform 5 reaches the specified position. Subsequently, the upper leveling cylinder 62 is controlled to extend and retract, and drive the end of the bracket 61 connected to the telescopic arm 2 to rotate on the telescopic arm 2, so that the other end of the bracket 61 drives the working platform 5 to be horizontally adjusted.

[0038] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. However, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An external working bucket of an insulated boom truck, comprising: A connecting seat (1) for connecting to a vehicle body; A telescopic arm (2), one end of which is rotatably disposed on the connecting seat (1); A telescopic oil cylinder (4) is rotatably mounted on the connecting seat (1), and the other end of the cylinder is connected to the telescopic arm (2); It is characterized in that it also includes a leveling mechanism (6), comprising: A lower leveling oil cylinder (3), the main body of the lower leveling oil cylinder (3) is rotatably arranged on the telescopic arm (2), the first driving rod (7) of the lower leveling oil cylinder (3) is rotatably connected to the connecting seat (1) to drive the telescopic arm (2) to rotate, and the telescopic arm (2) and the connecting seat (1) are hinged through the lower leveling oil cylinder (3) to form a lower leveling triangle structure; A bracket (61), wherein the bottom end of the bracket (61) is hinged to the telescopic arm (2), and the top end of the bracket (61) is connected to the working platform (5); An upper leveling cylinder (62), wherein the main body of the upper leveling cylinder (62) is rotatably connected to the bracket (61), and the second driving rod (8) of the upper leveling cylinder (62) is rotatably connected to the telescopic arm (2), and the bracket (61) and the telescopic arm (2) are hingedly connected through the upper leveling cylinder (62) to form an upper leveling triangle structure.

2. The external working bucket of the insulated boom truck according to claim 1, characterized in that: The upper leveling cylinder (62) and the lower leveling cylinder (3) are connected in series in the same cavity. Compared with the lower leveling cylinder (3), the upper leveling cylinder (62) has a larger cylinder diameter and a smaller cylinder stroke, so as to cooperate with the lower leveling cylinder (3) to achieve non-proportional equal volume hydraulic leveling.

3. The external working bucket of the insulated boom truck according to claim 1, characterized in that: The working platform (5) is connected to the bracket (61) via a worm gear, so that the working platform (5) can rotate ±90° around the mid-vertical line of the bracket (61), and the worm gear mechanism is driven by a hydraulic motor.

4. The external working bucket of the insulated boom truck according to claim 1, characterized in that: The telescopic arm (2) can perform a variable amplitude motion of -24° to 78° around the connection hinge of the connection seat (1).

Images