An adjustable telescopic arm

Abstract

An adjustable telescopic arm relates to a telescopic arm, and in particular to an adjustable telescopic arm. The utility model aims to solve the problems that the existing sliding telescopic arm has a small stroke and can only be designed into a two-stage structure, and the sleeve-type telescopic arm has a complex structure and high production cost. The utility model comprises a first section arm, a second section arm, a third section arm, a fourth section arm, a second section arm pulley mechanism, a second section arm trolley mechanism, a third section arm pulley mechanism, a third section arm trolley mechanism and a fourth section arm pulley mechanism. The utility model belongs to the field of machinery.

Description

Technical Field

[0001] The utility model relates to a telescopic arm, in particular to an adjustable telescopic arm, and belongs to the field of machinery. Background Art

[0002] The tank body refers to a closed tank container such as a reactor, a liquid storage tank, a fermentation tank, etc. The tank body needs to be cleaned after use to ensure that there will be no residue on the inner wall of the tank body that contaminates the stored content in the tank when it is used next time. At present, the commonly used method for cleaning the tank body is manual cleaning. The manual cleaning method is to set a manual cleaning port on the tank body, and then workers enter the tank body to use a water pipe or a cleaning device to clean the inner wall of the tank body. Manual cleaning of the tank body is inefficient and labor-intensive for workers. In addition, some special tank bodies have corrosive and odorous residues, which will have a certain impact on human health. Therefore, there is an urgent need for a method that can automatically An automatic tank cleaning system is disclosed, which can replace manual cleaning of the tank body by using a device for cleaning the inside of the tank body; an invention patent with publication number CN111468490A and application date April 29, 2020, discloses an automatic tank cleaning system, which can replace manual cleaning of the tank body through the coordinated cooperation of a coil device, a hose automatic transmission device, a lifting device and a tilting arm cleaning device, thereby shortening the cleaning time and saving time, effort and cost; however, in actual use of the system, due to the use of a sliding telescopic arm structure, the stroke of a single-section telescopic arm is short, the stability is poor, and the structure is complex, which is not easy to maintain and install. Utility Model Content

[0003] The utility model aims to solve the problems that the existing automatic tank cleaning system uses a sliding telescopic arm structure, resulting in a short stroke of a single telescopic arm, poor stability, a complex structure, and inconvenient maintenance and installation, and thus proposes an adjustable telescopic arm.

[0004] The technical solution adopted by the utility model to solve the above problems is: the utility model comprises a first section arm, a second section arm, a third section arm, a fourth section arm, a second section arm pulley mechanism, a second section arm pulley mechanism, a third section arm pulley mechanism, a third section arm pulley mechanism and a fourth section arm pulley mechanism;

[0005] The rear end of the first section arm is inserted into the front end of the second section arm, the rear end of the second section arm is inserted into the front end of the third section arm, the rear end of the third section arm is inserted into the front end of the fourth section arm, the second section arm pulley mechanism is installed at the front end of the second section arm, the second section arm pulley mechanism is installed at the rear end of the second section arm, the third section arm pulley mechanism is installed at the front end of the third section arm, the third section arm pulley mechanism is installed at the rear part of the fourth section arm, and the fourth section arm pulley mechanism is installed at the front end of the fourth section arm.

[0006] Furthermore, the second arm pulley mechanism comprises a second arm front pulley assembly and a second arm fixed pulley assembly;

[0007] The front pulley assembly of the second arm and the fixed pulley assembly of the second arm are sequentially installed at the front end of the second arm from front to back, and the pulley of the front pulley assembly of the second arm is rollingly connected with the outer wall of the first arm.

[0008] Furthermore, the front pulley assembly of the second arm section is composed of four pulleys arranged in a rectangular shape, and two pulleys are arranged on each side of the first arm section.

[0009] Further, the second boom pulley mechanism comprises a second boom movable pulley assembly and a second boom pulley assembly;

[0010] The second-section arm pulley assembly is installed at the rear end of the second-section arm, and the second-section arm pulley assembly is installed at the rear end of the second-section arm pulley assembly.

[0011] Further, the third arm pulley mechanism includes a third arm front pulley assembly, a third arm fixed pulley assembly and a third arm wire guide wheel;

[0012] The front pulley assembly of the third arm and the fixed pulley assembly of the third arm are sequentially installed at the front end of the third arm from front to back, the wire guide wheel of the third arm is installed on the inner wall of the front end of the third arm, and the pulley of the front pulley assembly of the third arm is rollingly connected with the outer side wall of the second arm.

[0013] Furthermore, the front pulley assembly of the third arm is composed of four pulleys arranged in a rectangular shape, and two pulleys are respectively arranged on both sides of the second arm.

[0014] Further, the third-section arm pulley mechanism includes a third-section arm pulley assembly and a third-section arm pulley assembly;

[0015] The third arm pulley assembly and the third arm trolley assembly are sequentially installed at the rear end of the third arm from front to back, and the third arm pulley assembly and the third arm trolley assembly are both located in the rear part of the fourth arm.

[0016] Further, the fourth arm pulley mechanism comprises a fourth arm front pulley assembly and a fourth arm fixed pulley assembly;

[0017] The front pulley assembly of the fourth arm and the fixed pulley assembly of the fourth arm are sequentially installed at the front end of the fourth arm from front to back, and the pulley of the pulley assembly at the front end of the fourth arm is rollingly connected with the outer side wall of the third arm.

[0018] Furthermore, the utility model also includes a first section arm pulley assembly;

[0019] The first boom pulley assembly is installed at the rear end of the first boom, and the first boom pulley assembly is located in the rear part of the second boom.

[0020] The beneficial effects of the utility model are as follows: the utility model adopts a wire-driven pulley to realize multi-stage telescopic extension and retraction, and each stage of the telescopic arm is supported and guided by four pulleys during the telescopic process, which effectively increases the stroke of the single-stage telescopic arm and improves the working stability of the telescopic arm; the utility model has a simple overall structure, a small number of parts, and is easy to install and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the appearance structure of the utility model. DETAILED DESCRIPTION

[0023] Specific implementation method 1: Combination Figure 1 and Figure 2 To explain this embodiment, an adjustable telescopic arm described in this embodiment includes a first arm section 1, a second arm section 4, a third arm section 8, a fourth arm section 11, a second arm section pulley mechanism, a second arm section pulley mechanism, a third arm section pulley mechanism, a third arm section pulley mechanism and a fourth arm section pulley mechanism;

[0024] The rear end of the first section arm 1 is inserted into the front end of the second section arm 4, the rear end of the second section arm 4 is inserted into the front end of the third section arm 8, the rear end of the third section arm 8 is inserted into the front end of the fourth section arm 11, the second section arm pulley mechanism is installed at the front end of the second section arm 4, the second section arm pulley mechanism is installed at the rear end of the second section arm 4, the third section arm pulley mechanism is installed at the front end of the third section arm 8, the third section arm pulley mechanism is installed at the rear part of the fourth section arm 11, and the fourth section arm pulley mechanism is installed at the front end of the fourth section arm 11.

[0025] Specific implementation method 2: Combination Figure 1 and Figure 2 To explain this embodiment, the second arm pulley mechanism of an adjustable telescopic arm described in this embodiment comprises a second arm front pulley assembly 2 and a second arm fixed pulley assembly 3;

[0026] The second boom front pulley assembly 2 and the second boom fixed pulley assembly 3 are sequentially installed at the front end of the second boom 4 from front to back, and the pulley of the second boom front pulley assembly 2 is rollingly connected to the outer wall of the first boom 1.

[0027] The front pulley assembly of the second boom consists of four pulleys and a first mounting plate 201. The four pulleys are mounted on the first mounting plate 201 in a rectangular shape. The first mounting plate 201 is fixedly connected to the front end of the second boom 4. The fixed pulley assembly 3 of the second boom is mounted on the first mounting plate 201.

[0028] Other components and connection relationships are the same as those in the first specific implementation mode.

[0029] Specific implementation method three: Combination Figure 1 and Figure 2 The present embodiment is described. The front pulley assembly 2 of the second arm section of an adjustable telescopic arm described in the present embodiment is composed of four pulleys arranged in a rectangular shape, and two pulleys are arranged on each side of the first arm section 1.

[0030] The other components and connection relationships are the same as those of the second specific implementation method.

[0031] Specific implementation method four: Combination Figure 1 and Figure 2 To illustrate this embodiment, the second arm pulley mechanism of an adjustable telescopic arm described in this embodiment includes a second arm movable pulley assembly 13 and a second arm pulley assembly 14;

[0032] The second boom pulley assembly 14 is installed at the rear end of the second boom 4 , and the second boom pulley assembly 13 is installed at the rear end of the second boom pulley assembly 14 .

[0033] Other components and connection relationships are the same as those in the first specific implementation mode.

[0034] Specific implementation method five: Combination Figure 1 and Figure 2 To illustrate this embodiment, the third arm pulley mechanism of an adjustable telescopic arm described in this embodiment comprises a third arm front pulley assembly 5, a third arm fixed pulley assembly 6 and a third arm wire guide wheel 7;

[0035] The third arm front pulley assembly 5 and the third arm fixed pulley assembly 6 are installed in sequence at the front end of the third arm 4 from front to back, the third arm wire guide wheel 7 is installed on the inner wall of the front end of the third arm 8, and the pulley of the third arm front pulley assembly 5 is rollingly connected to the outer side wall of the second arm 4.

[0036] The front pulley assembly 5 of the third arm consists of four pulleys and a second mounting plate 501. The four pulleys are mounted on the second mounting plate 501 in a rectangular shape. The second mounting plate 501 is fixedly mounted on the front end of the third arm 8. The fixed pulley assembly 6 of the third arm is mounted on the second mounting plate 501.

[0037] Other components and connection relationships are the same as those in the first specific implementation mode.

[0038] Specific implementation method six: Combination Figure 1 and Figure 2 To explain this embodiment, the front pulley assembly 5 of the third arm of an adjustable telescopic arm described in this embodiment is composed of four pulleys arranged in a rectangular shape, and two pulleys are respectively arranged on both sides of the second arm 4.

[0039] Other components and connection relationships are the same as those of the fifth specific implementation method.

[0040] Specific implementation method seven: Combination Figure 1 and Figure 2 To illustrate this embodiment, the third arm pulley mechanism of an adjustable telescopic arm described in this embodiment includes a third arm pulley assembly 15 and a third arm pulley assembly 16;

[0041] The third arm pulley assembly 15 and the third arm trolley assembly 16 are sequentially installed at the rear end of the third arm 8 from front to back, and the third arm pulley assembly 15 and the third arm trolley assembly 16 are both located in the rear part of the fourth arm 11.

[0042] Other components and connection relationships are the same as those in the first specific implementation mode.

[0043] Specific implementation method eight: Combination Figure 1 and Figure 2 To illustrate this embodiment, the fourth arm pulley mechanism of an adjustable telescopic arm described in this embodiment comprises a fourth arm front pulley assembly 9 and a fourth arm fixed pulley assembly 10;

[0044] The fourth arm front pulley assembly 9 and the fourth arm fixed pulley assembly 10 are sequentially installed at the front end of the fourth arm 11 from front to back, and the pulley of the fourth arm front end pulley assembly 9 is rollingly connected to the outer side wall of the third arm 8.

[0045] The front pulley assembly 9 of the fourth arm is composed of four pulleys and a third mounting plate 901. The four pulleys are mounted on the third mounting plate 901 in a rectangular shape. The four pulleys are rollingly connected to the outer wall of the third arm 8. Two pulleys are respectively provided on both sides of the third arm 8. The fixed pulley assembly 10 of the fourth arm is mounted on the third mounting plate 901.

[0046] The other components and connection relationships are the same as those in the first specific implementation mode.

[0047] Specific implementation method nine: Combination Figure 1 and Figure 2 To illustrate this embodiment, the adjustable telescopic arm described in this embodiment further includes a first arm pulley assembly 12;

[0048] The first boom pulley assembly 12 is installed at the rear end of the first boom 1 , and the first boom pulley assembly 12 is located in the rear part of the second boom 4 .

[0049] Other components and connection relationships are the same as those in the first specific implementation mode.

[0050] Specific implementation method ten: Combination Figure 1 and Figure 2To explain this embodiment, the adjustable telescopic arm of this embodiment further comprises two connecting ear plates 17, and the two connecting ear plates 17 are symmetrically fixedly mounted on both sides of the rear end of the fourth arm 11. Other components and connection relationships are the same as those of the first embodiment.

[0051] How it works

[0052] When in use, prepare one steel wire and one steel wire for extension, one end of the steel wire for retraction, connect one end of the steel wire to the driving device, and the other end of the steel wire for extension passes through the fourth arm fixed pulley assembly 10, the third arm movable pulley assembly 15, the third arm fixed pulley assembly 6, the third arm steel wire guide wheel 7, the second arm movable pulley assembly 13, the second arm fixed pulley assembly 3, and then is fixedly connected to the first arm pulley assembly 12;

[0053] One end of the contraction steel wire is connected to the driving device, and the other end of the contraction steel wire is fixedly connected to the first boom pulley assembly 12;

[0054] During operation, the driving device pulls the extending wire, which in turn drives the first boom 1, the second boom 4, and the third boom 8 to extend; after completing the work, the driving device pulls the retracting wire, which pulls the first boom 1, the second boom 4, and the third boom 8 back and retracts them together.

[0055] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent replacement and improvement of the above embodiments made according to the technical essence of the present invention, within the spirit and principles of the present invention, without departing from the content of the technical solution of the present invention, still fall within the protection scope of the technical solution of the present invention.

Claims

1. An adjustable telescopic arm, characterized in that: The adjustable telescopic arm comprises a first arm section (1), a second arm section (4), a third arm section (8), a fourth arm section (11), a second arm section pulley mechanism, a second arm section pulley mechanism, a third arm section pulley mechanism, a third arm section pulley mechanism and a fourth arm section pulley mechanism; The rear end of the first boom (1) is inserted into the front end of the second boom (4), the rear end of the second boom (4) is inserted into the front end of the third boom (8), the rear end of the third boom (8) is inserted into the front end of the fourth boom (11), the second boom pulley mechanism is installed at the front end of the second boom (4), the second boom pulley mechanism is installed at the rear end of the second boom (4), the third boom pulley mechanism is installed at the front end of the third boom (8), the third boom pulley mechanism is installed at the rear part of the fourth boom (11), and the fourth boom pulley mechanism is installed at the front end of the fourth boom (11).

2. The adjustable telescopic arm according to claim 1, characterized in that: The second arm pulley mechanism comprises a second arm front pulley assembly (2) and a second arm fixed pulley assembly (3); The second arm front pulley assembly (2) and the second arm fixed pulley assembly (3) are sequentially installed at the front end of the second arm (4) from front to back, and the pulley of the second arm front pulley assembly (2) is rollingly connected to the outer wall of the first arm (1).

3. The adjustable telescopic arm according to claim 2, characterized in that: The front pulley assembly (2) of the second boom section is composed of four pulleys arranged in a rectangular shape, and two pulleys are respectively arranged on both sides of the first boom section (1).

4. The adjustable telescopic arm according to claim 1, characterized in that: The second boom pulley mechanism comprises a second boom movable pulley assembly (13) and a second boom pulley assembly (14); The second boom pulley assembly (14) is installed at the rear end of the second boom (4), and the second boom movable pulley assembly (13) is installed at the rear end of the second boom pulley assembly (14).

5. The adjustable telescopic arm according to claim 1, characterized in that: The third arm pulley mechanism comprises a third arm front pulley assembly (5), a third arm fixed pulley assembly (6) and a third arm wire guide wheel (7); The third arm front pulley assembly (5) and the third arm fixed pulley assembly (6) are sequentially mounted at the front end of the third arm (8) from front to back, the third arm wire guide wheel (7) is mounted on the inner wall of the front end of the third arm (8), and the pulley of the third arm front pulley assembly (5) is rollingly connected to the outer side wall of the second arm (4).

6. The adjustable telescopic arm according to claim 5, characterized in that: The front pulley assembly (5) of the third arm section is composed of four pulleys arranged in a rectangular shape, and two pulleys are respectively arranged on both sides of the second arm section (4).

7. The adjustable telescopic arm according to claim 1, characterized in that: The third-section arm pulley mechanism comprises a third-section arm pulley assembly (15) and a third-section arm pulley assembly (16); The third arm pulley assembly (15) and the third arm trolley assembly (16) are sequentially installed at the rear end of the third arm (8) from front to back, and the third arm pulley assembly (15) and the third arm trolley assembly (16) are both located in the rear part of the fourth arm (11).

8. The adjustable telescopic arm according to claim 1, characterized in that: The fourth arm pulley mechanism comprises a fourth arm front pulley assembly (9) and a fourth arm fixed pulley assembly (10); The fourth arm front pulley assembly (9) and the fourth arm fixed pulley assembly (10) are sequentially installed at the front end of the fourth arm (11) from front to back, and the pulley of the fourth arm front pulley assembly (9) is rollingly connected to the outer side wall of the third arm (8).

9. The adjustable telescopic arm according to claim 1, characterized in that: The adjustable telescopic arm also includes a first arm pulley assembly (12); The first boom pulley assembly (12) is installed at the rear end of the first boom (1), and the first boom pulley assembly (12) is located in the rear part of the second boom (4).

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