Joint structure and multi-stage folding arm type window cleaning machine

Abstract

The utility model discloses a joint structure and multistage folding arm type window cleaning machine, including the stay cord subassembly that installs on the body skeleton, the stay cord subassembly according to the function is divided into pulling rope, surrounding rope and driving rope, pulling rope is connected with folding arm end portion, pulling rope and folding arm hoisting position are arranged opposite, surrounding rope is provided outside the body skeleton, and the driving rope is connected with the body skeleton. And a driving disc for winding the driving rope is mounted on the base. According to the joint structure and the multi-stage folding arm type window cleaning machine provided by the utility model, the traction force above the end part of the folded arm after extension is provided through the traction rope, so that the traction force can be separated from the gravity generated by a hanging basket, namely, independent upward tension is set, so that the extrusion force on one side in the folded arm is counteracted, the damage to the folded arm is reduced, and the service life of the folded arm is prolonged. And meanwhile, the driving disc located on the base guarantees the stability of the initial end of the pull rope assembly, so that the traction rope can provide stable traction force, and the protection effect of the folding arm is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of window cleaning equipment, in particular to a joint structure and a multi-stage folding arm type window cleaning machine. Background Art

[0002] A window cleaning machine is a piece of equipment installed on the roof of a building and used to clean, protect and maintain the glass on the exterior walls of the building. Common installations include movable and fixed types.

[0003] According to the publication (announcement) number: CN202277308U, the publication (announcement) date: 2012-06-20, a multi-stage folding arm type window cleaning machine is disclosed.

[0004] According to the publication (announcement) number: CN218684076U, the publication (announcement) date: 2023-03-24, a multi-stage articulated folding arm type window cleaning machine is disclosed.

[0005] In the prior art including the above-mentioned patent, since the folding arm of the multi-stage folding arm window cleaning machine needs to be frequently extended for use, and the end of the folding arm is connected to the manned hanging basket, when the folding arm is in the segmented extended use state, the bearing force inside the folding arm will increase accordingly, and the gravity generated by the hanging basket is downward, and the extrusion force on the segmented position of the folding arm will be upward. Therefore, the inside of the folding arm will inevitably have uneven wear problems under long-term use, resulting in damage to the contact surface or pulley assembly on one side of the inside of the folding arm, reducing the service life of the folding arm, and also accompanied by safety issues. Utility Model Content

[0006] The purpose of the utility model is to provide a joint structure and a multi-stage folding arm type window cleaning machine, aiming to solve the above-mentioned problems.

[0007] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0008] A joint structure includes a body frame provided with a base and a folding arm, and also includes a pull rope assembly mounted on the body frame, wherein the pull rope assembly is divided into a traction rope, a loop rope and a drive rope according to function;

[0009] The traction rope is connected to the end of the folding arm, and the traction rope and the folding arm lifting position are arranged relative to each other. The surrounding rope is arranged on the outside of the body frame, and a driving disc for winding the driving rope is installed on the base.

[0010] Preferably, a drive box for accommodating the rotation of the drive disc is fixedly mounted on the base.

[0011] Preferably, a fitting cover for cooperating with the sliding of the traction rope is movably provided on the body frame, and a spring for straightening the traction rope is also fixedly installed on the fitting cover.

[0012] Preferably, it further comprises a protective cover installed between the base and the body frame, and a retaining member for pressing the protective cover is hingedly provided on the base.

[0013] Preferably, the retaining member is provided with a retaining head and a collar.

[0014] Preferably, the surrounding rope is inserted into and slides in the circumferentially arranged rings.

[0015] A multi-stage folding-arm window cleaning machine comprises the joint structure described above.

[0016] In the above technical solution, the utility model provides a joint structure and a multi-stage folding arm window cleaning machine, which have the following beneficial effects: a pulling force is provided above the extended rear end of the folding arm through a traction rope, so that the pulling force can be separated from the gravity generated by the hanging basket, that is, a separate upward pulling force is set to offset the extrusion force on one side of the inner side of the folding arm, thereby reducing damage to the folding arm. At the same time, the driving disk on the base ensures the stability of the initial end of the pull rope assembly, so that the traction rope can provide a stable pulling force, thereby improving the protective effect of the folding arm. At the same time, a ring-shaped surrounding rope is provided to increase the friction of the pull rope assembly, so that the traction rope is not prone to loosening and slipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 A schematic structural diagram of a window cleaning machine provided in an embodiment of the present utility model;

[0019] Figure 2 for Figure 1 A magnified schematic diagram of point A;

[0020] Figure 3 This is a schematic structural diagram of the pull rope assembly, fastening assembly and abutment member provided in an embodiment of the present utility model.

[0021] Description of reference numerals:

[0022] 1. Body frame; 10. Base; 11. Folding arm; 2. Pull rope assembly; 21. Traction rope; 22. Wrap rope; 23. Drive rope; 230. Drive box; 231. Drive disk; 3. Fastening assembly; 31. Fitting cover; 32. Spring; 33. Pad; 4. Abutment; 40. Protective cover; 41. Abutment head; 42. Ring. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0024] like Figure 1-3 As shown, a joint structure and a multi-stage folding arm type window cleaning machine include a body frame 1 provided with a base 10 and a folding arm 11, and also include a pull rope assembly 2 installed on the body frame 1. The pull rope assembly 2 is divided into a traction rope 21, a loop rope 22 and a drive rope 23 according to function;

[0025] The traction rope 21 is connected to the end of the folding arm 11, and the traction rope 21 and the folding arm 11 are arranged relative to each other. The surrounding rope 22 is set on the outside of the body frame 1, and a driving disc 231 for winding the driving rope 23 is installed on the base 10.

[0026] Specifically, the base 10 is installed on the roof, and the installation and connection method is the existing technology, which will not be described here. The end of the folding arm 11 is installed with a pulley assembly and is equipped with a hanging basket, and the body frame 1 is the frame on the window cleaning machine body, which is the existing technology and will not be described here.

[0027] Furthermore, the pull rope assembly 2 is a steel wire rope, and the connection method and material of its two ends are all existing technologies and will not be elaborated here. The end of the traction rope 21 is installed above the pulley assembly of the hanging basket, and the hanging basket is placed downward, so the traction rope 21 has an oblique pulling force that will eventually be transmitted upward and act on the entire folding arm 11 to resist the gravity generated by the hanging basket in the back direction, and the traction rope 21 passes through the body frame 1 with one end having a counterweight block, so that the traction rope 21 can more easily transmit force to the surrounding rope 22.

[0028] Furthermore, a torsion spring is fixedly installed on the driving disk 231. The installation method of the torsion spring is an existing technology and will not be described here. The driving rope 23 on the driving disk 231 is pre-equipped with an adaptive length after the folding arm 11 is extended, ensuring the gravity offset work after the folding arm 11 is extended, thereby improving the protection range of the folding arm 11.

[0029] The traction rope 21 provides a pulling force above the extended rear end of the folding arm 11. The purpose is to separate the pulling force from the gravity generated by the hanging basket, that is, to set a separate upward pulling force to offset the extrusion force on one side of the inner side of the folding arm 11, thereby reducing damage to the folding arm 11. At the same time, the driving disk 231 on the base 10 ensures the stability of the initial end of the pull rope assembly 2, so that the traction rope 21 can provide a stable pulling force and improve the protective effect of the folding arm 11. At the same time, a ring-shaped surrounding rope 22 is provided to increase the friction of the pull rope assembly 2, so that the traction rope 21 is not prone to loosening and slipping.

[0030] As an embodiment further provided by the present invention, a driving box 230 for accommodating the rotation of the driving disk 231 is fixedly mounted on the base 10 .

[0031] Specifically, the driving box 230 can be detachably mounted on one of the brackets of the base 10 using bolts and nuts, and the torsion spring on the driving disk 231 is connected to the inner wall of the driving box 230 .

[0032] The drive box 230 can protect the winding of the drive disk 231 to avoid environmental interference or potential dangers during the winding of the drive rope 23. At the same time, the stably installed drive box 230 can ensure the overall stability of the pull rope assembly 2.

[0033] As another embodiment further provided by the present invention, a fitting cover 31 is movably provided on the body frame 1 for cooperating with the sliding of the traction rope 21 , and a spring 32 for straightening the traction rope 21 is also fixedly installed on the fitting cover 31 .

[0034] Specifically, the fastening assembly 3 includes a chimeric cover 31 and a spring 32, and also includes a pad 33 fixedly mounted on the body frame 1. The spring 32 is fixedly mounted on the pad 33, and a rubber pad is fixedly mounted on the side of the pad 33 to provide damping generated by the sliding between the inner wall of the chimeric cover 31 and the rubber pad.

[0035] Furthermore, a recess is provided on the arc surface of the engaging cover 31 to accommodate the sliding of the traction rope 21 , so as to provide a limit for the stable sliding of the traction rope 21 .

[0036] The interlocking cover 31 is used to provide support for the stable sliding of the traction rope 21, and the pressure generated when the traction rope 21 is straightened acts on the interlocking cover 31, accompanied by the compression deformation of the spring 32, so that the deformation storage force of the spring 32 can further enhance the straightening effect of the traction rope 21, so that the traction rope 21 can stably provide the work of offsetting the gravity of the hanging basket, so that the protection of the folding arm 11 is better guaranteed.

[0037] As another embodiment further provided by the present invention, the protective cover 40 is further included and installed between the base 10 and the body frame 1 . A support member 4 for pressing the protective cover 40 is hingedly provided on the base 10 .

[0038] Specifically, the protective cover 40 is installed on the outside of the bottom rotation position of the body frame 1, and balls or pulleys are used to contact the inner wall of the protective cover 40 during rotation. The purpose is to provide protection for the rotation position of the body frame 1 without interfering with the normal rotation of the body frame 1.

[0039] The protective cover 40 provided can strengthen the protection of the bottom rotation position of the window cleaning machine, and at the same time cooperate with the abutment 4 to press the protective cover 40, in order to improve the stability of the protective cover 40 during operation and prevent the protective cover 40 from loosening and reducing the protection effect.

[0040] As another embodiment further provided by the present invention, the retaining member 4 is provided with a retaining head 41 and a collar 42 .

[0041] Specifically, the end of the retaining head 41 has a wrinkled depression, the purpose of which is to increase the friction between the retaining head 41 and the surface of the protective cover 40. The ring 42 is located at the rotating handle position of the retaining member 4, and a torsion spring is provided at the hinge position of the retaining member 4. In the default state, the torsion spring causes the wrinkled depression on the retaining head 41 to contact the outer surface of the protective cover 40.

[0042] The provision of the collar 42 can make the rotation operation of the retaining member 4 more convenient, and the circumferentially arranged retaining heads 41 can form a stable clamping function for the protective cover 40, thereby improving the use effect of the protective cover 40.

[0043] As another embodiment further provided by the present invention, the surrounding rope 22 is inserted into and slides in the circumferentially arranged rings 42 .

[0044] When the looping rope 22 reaches the position of the abutment 4, the looping rope 22 passes through multiple rings 42 in sequence. On the one hand, the friction of the looping rope 22 can be increased, so that the pull rope assembly 2 has a more stable straightening effect. On the other hand, the taut looping rope 22 can generate a radial force toward the annular axis, and the radial force can prompt the abutment 4 to continue to apply force to the abutment head 41 in a hinged position, thereby achieving a further compression effect on the protective cover 40 and ensuring the protection effect of the rotation position of the body frame 1. At the same time, the smaller the movable degree of the abutment 4, the more stable the protective cover 40, the tighter the looping rope 22, and the stronger the pulling ability of the traction rope 21.

[0045] Working principle: The traction rope 21 provides a pulling force above the extended rear end of the folding arm 11. The purpose is to separate the pulling force from the gravity generated by the hanging basket, that is, to set a separate upward pulling force, thereby offsetting the extrusion force on one side of the inner side of the folding arm 11, reducing damage to the folding arm 11, and at the same time, the driving disk 231 on the base 10 ensures the stability of the initial end of the pull rope assembly 2, so that the traction rope 21 can provide a stable pulling force, thereby improving the protective effect of the folding arm 11, and at the same time, when the surrounding rope 22 reaches the position of the abutment 4, the surrounding rope 22 is passed through multiple rings 42 in turn. On the one hand, it can increase the friction of the surrounding rope 22, so that the pull rope assembly 2 has a more stable straightening effect. On the other hand, the taut surrounding rope 22 can generate a radial force toward the annular axis, and this radial force can prompt the abutment 4 to continue to apply force to the abutting head 41 in a hinged position, thereby achieving a further compression effect on the protective cover 40.

[0046] The above has only described certain exemplary embodiments of the present application by way of illustration, and it is needless to say that the described embodiments can be modified in various ways without departing from the spirit and scope of the present application for those skilled in the art. Therefore, the above drawings and descriptions are illustrative in nature, and should not be understood as limiting the scope of protection of the claims of the present application.

Claims

1. A joint structure, comprising a body frame (1) provided with a base (10) and a folding arm (11), characterized in that: It also includes a pull rope assembly (2) installed on the body frame (1), wherein the pull rope assembly (2) is divided into a traction rope (21), a surrounding rope (22) and a driving rope (23) according to function; The traction rope (21) is connected to the end of the folding arm (11), and the traction rope (21) and the folding arm (11) are arranged at relative positions. The surrounding rope (22) is arranged outside the machine frame (1). A driving disc (231) for winding the driving rope (23) is installed on the base (10).

2. A joint structure according to claim 1, characterized in that: A driving box (230) for accommodating the rotation of the driving disk (231) is fixedly mounted on the base (10).

3. A joint structure according to claim 1, characterized in that: A fitting cover (31) for sliding with the traction rope (21) is movably provided on the machine frame (1); a spring (32) for straightening the traction rope (21) is also fixedly installed on the fitting cover (31).

4. A joint structure according to claim 1, characterized in that: It also includes a protective cover (40) installed between the base (10) and the body frame (1), and a support member (4) for pressing and fixing the protective cover (40) is hingedly provided on the base (10).

5. A joint structure according to claim 4, characterized in that: The abutting piece (4) is provided with a abutting head (41) and a collar (42).

6. A joint structure according to claim 5, characterized in that: The surrounding rope (22) is inserted into and slides in the circumferentially arranged rings (42).

7. A multi-stage folding arm window cleaning machine, characterized in that: The joint structure comprises the joint structure according to any one of claims 1 to 6.

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