Stepless adjustment supporting arm and infrared physiotherapy instrument

Abstract

The utility model discloses a kind of stepless adjustment supporting arm and infrared physiotherapy instrument, it is related to supporting arm technical field.The supporting arm includes first connecting piece, second connecting piece, shaped hose and tow chain;Shaped hose is sleeved in the containing passage of tow chain, and its both ends are respectively inserted in the inner hole of first and second connecting piece, and abut with the abutment portion in interior;Tow chain both ends are installed on connecting piece, for guiding shaped hose bending along the bending direction of tow chain.The utility model is compact in structure, flexible in adjustment, high in stability, safe and reliable, effectively avoid plastic deformation and positioning accuracy drop, suitable for infrared physiotherapy instrument and other equipment.

Description

Technical Field

[0001] This utility model relates to the field of support arms, specifically to a stepless adjustable support arm and an infrared physiotherapy device. Background Technology

[0002] In existing technologies, support arm structures typically employ the following types: spring-supported, damped pivot-type, bolt-clamped, and flexible hose-type. While each of these structures has its own advantages, they all have corresponding limitations in practical applications.

[0003] Spring-supported structures typically utilize gas springs or mechanical springs to provide auxiliary or balancing forces to counteract the torque generated by the load at the end of the support arm, thereby achieving angle adjustment and position holding functions. However, such structures are generally large in size and occupy a lot of space; there is a risk of clamping injury during adjustment, resulting in poor safety performance; the achievable rotation angle is also often limited; in addition, the appearance and structure are relatively complex, making it difficult to meet the application scenarios with high requirements for equipment miniaturization and aesthetics.

[0004] Damped pivot structures rely on the friction within the pivot to achieve a stable stop for the support arm. However, high-performance damped pivots are expensive, while low-quality products are prone to damping performance degradation during long-term use, leading to decreased stability. If a unidirectional damped pivot is used, rebound or oscillation is likely to occur in the undamped direction. If a bidirectional damped pivot is used, both gravity and pivot damping must be overcome when raising the support arm, resulting in greater operating force and a poor adjustment experience.

[0005] The bolt-tightening structure locks the angle of the support arm by tightening the bolts to compress the washers and generating friction. The bolts can be loosened for adjustment. The main problem with this method is that the bolts need to be tightened manually for each adjustment, which is inconvenient. In addition, if the bolts are not reliably tightened or become loose, the support arm may fall unexpectedly, posing a safety risk.

[0006] The fixed-tube structure utilizes the elasticity and plastic deformation of the metal material itself to achieve the positioning and adjustment of the support arm, which has the advantages of low cost and flexible adjustment. However, its typical disadvantage is that it allows bending in any direction, and after long-term use, it is prone to irreversible plastic deformation, resulting in abnormal shape and decreased positioning accuracy. Especially in medical equipment with high requirements for overall balance, the fixed-tube design requires increasing the chassis counterweight or expanding the equipment size to maintain stability, thus making it difficult to meet the requirements of miniaturization, portability and appearance. Utility Model Content

[0007] This invention addresses the technical problems of large structure, high safety risks, inconvenient operation, easy plastic deformation, and decreased positioning accuracy of existing support arms by providing a steplessly adjustable support arm and an infrared physiotherapy device. This invention achieves the beneficial effects of compact structure, flexible adjustment, high stability, and safety and reliability by placing a shaping hose in the receiving channel of a cable chain and guiding the shaping hose to bend in a predetermined direction through the cable chain.

[0008] The technical solution adopted in this utility model is:

[0009] A stepless adjustable support arm includes a first connector, a second connector, a shaping hose, and a cable chain;

[0010] The shaping hose is sleeved in the receiving channel of the cable chain. The first end of the shaping hose is inserted into the inner hole of the first connector and abuts against the first abutting part provided in the inner hole of the first connector. The second end is inserted into the inner hole of the second connector and abuts against the second abutting part provided in the inner hole of the second connector.

[0011] The first end of the cable chain is mounted on the first connector, and the second end is mounted on the second connector, for guiding the shaping hose to bend along the bending direction of the cable chain.

[0012] Preferably, the first connector and the second connector are respectively provided with a first mounting bracket and a second mounting bracket. The first mounting bracket and the second mounting bracket are each provided with a pair of ribs extending along the axial direction of the connector. Each rib is arranged parallel to the side wall of the cable chain. The pair of ribs are respectively hinged to the two side walls of the cable chain at their respective ends through hinges.

[0013] Preferably, the connecting end of the first connector is a sleeve structure, the shaping hose is inserted into the inner sleeve, and the first mounting bracket is disposed in the gap between the inner sleeve and the outer sleeve;

[0014] A first protective shell is installed on the outer wall of the sleeve, and the hinge of the first mounting bracket and the drag chain is located inside the first protective shell.

[0015] Preferably, the first protective shell is provided with a reinforcing member extending along the axial direction of the first protective shell, and the reinforcing member is located in the bending direction of the cable chain.

[0016] Preferably, a second protective shell is installed on the outer periphery of the second mounting bracket, and the hinge portion of the second mounting bracket and the cable chain is located inside the second protective shell.

[0017] Preferably, the first and second end sidewalls of the cable chain are provided with connecting edges for connecting the cable chain links, and the first mounting bracket and the second mounting bracket are respectively hinged to the connecting edges at their respective ends.

[0018] Preferably, the shaped hose includes a tube body and reinforcing ribs. The tube body has grooves spirally distributed on its outer wall, and the reinforcing ribs are embedded in the grooves so that the reinforcing ribs are spirally wound around the outer wall of the tube body.

[0019] Alternatively, the shaping hose includes a tube wall band, which is spirally wound to form several helical rings, and the side edges of adjacent helical rings are connected to each other to form a shaping hose.

[0020] Preferably, the cable chain is a semi-enclosed cable chain made of plastic, and the semi-enclosed cable chain can only bend along its open side.

[0021] Preferably, the drag chain is fitted with a protective silicone sleeve around its outer periphery.

[0022] An infrared physiotherapy device includes a chassis and a head, wherein the chassis is mounted on a first connecting member and the head is mounted on a second connecting member, and further includes the stepless adjustable support arm described above.

[0023] The beneficial effects of this utility model are:

[0024] 1. Compact structure and small space occupation: By fitting the shaped hose into the receiving channel of the cable chain and utilizing the guiding action of the cable chain, the support arm is integrated, reducing the overall volume and space occupation. It is particularly suitable for applications of miniaturized and portable devices such as infrared physiotherapy devices.

[0025] 2. Flexible adjustment and convenient operation: The first and second ends of the cable chain are respectively installed on the first and second connectors and guide the shaping hose to bend in a predetermined direction, realizing multi-angle stepless adjustment. Users can easily adjust the position of the support arm without additional tools or complicated operations, which improves the user experience.

[0026] 3. High stability and good positioning accuracy: The directional bending characteristics of the cable chain prevent the shaping hose from deforming in any direction. It can still maintain its shape stability after long-term use, which significantly improves positioning accuracy and reliability.

[0027] 4. Safe and reliable with low risk: The first and second protective shells effectively protect the hinges and internal structure, reducing the risk of external impact, foreign object intrusion, and pinching injuries during operation. The protective silicone sleeve covering the outer perimeter of the cable chain further reduces surface wear and the risk of scratching surrounding objects during use, enhancing safety and tactile friendliness.

[0028] 5. High durability and long service life: The shaping hose adopts a tube body and spiral reinforcing rib structure, and achieves shaping through plastic deformation. At the same time, the plastic material of the cable chain and the protective silicone sleeve provide wear resistance and corrosion resistance, extending the overall service life.

[0029] 6. Cost-effective: The simple structure and easy-to-manufacture and assemble components reduce production costs.

[0030] 7. Wide range of applications: It is not only applicable to infrared physiotherapy devices, but can also be extended to other equipment that requires support and adjustment, such as medical instruments and industrial machinery, making it highly versatile. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the structure of this utility model;

[0033] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0034] Figure 3 This is a schematic diagram of the drag chain structure in this utility model;

[0035] Figure 4 This is a schematic diagram of the structure of the shaping hose in this utility model;

[0036] Figure 5 This is a cross-sectional view of the present invention;

[0037] Figure 6 This is an assembly diagram of the first mounting bracket in this utility model;

[0038] Figure 7 This is an assembly diagram of the second mounting bracket in this utility model.

[0039] Among them, 1-first connector, 2-second connector, 3-shaped hose, 4-drag chain, 5-first abutment part, 6-second abutment part, 7-first mounting bracket, 8-second mounting bracket, 9-rib plate, 11-first protective shell, 12-reinforcing member, 13-second protective shell, 14-connecting edge, 15-pipe body, 16-reinforcing rib, 17-protective silicone sleeve. Detailed Implementation

[0040] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0041] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this invention.

[0042] The embodiments of the utility model will now be described in detail with reference to the accompanying drawings.

[0043] Example 1

[0044] See Figures 1 to 5 A stepless adjustable support arm includes a first connector 1, a second connector 2, a shaping hose 3, and a drag chain 4;

[0045] In this embodiment, both the first connector 1 and the second connector are shaft-shaped; the shaped hose 3 is a flexible tube with memory function, which can integrate devices such as wires, hydraulic lines or signal lines inside, and can be bent arbitrarily in three-dimensional space and maintain a specific shape, while providing appropriate support force; the cable chain 4, also known as a cable protection cable chain, is composed of several chain links that are hinged together, and is used to bind cables, wires, air compressor pipes or hydraulic pipes to facilitate their rotation and movement; in this embodiment, the body of the shaped hose 3 is sleeved in the receiving channel of the cable chain 4, and the two ends of the shaped hose 3 are respectively led out from the openings of the chain links at both ends of the cable chain 4.

[0046] The first end of the shaping hose 3 is inserted into the inner hole of the first connector 1. The inner hole of the first connector 1 extends along the axial direction of the first connector 1. The first end of the shaping hose 3 is interference-fitted into the inner hole of the first connector 1. Specifically, the first end of the shaping hose 3 is stamped and fixed in the inner hole of the first connector 1. The inner hole of the first connector 1 is provided with a first abutting part 5. The first abutting part 5 is the bottom surface of the inner hole of the first connector 1 or a step provided in the inner hole of the first connector 1.

[0047] The second end of the shaping hose 3 is inserted into the inner hole of the second connector 2. The inner hole of the second connector 2 extends along the axial direction of the second connector 2. The second end of the shaping hose 3 is press-fitted into the inner hole of the second connector 2. Specifically, the second end of the shaping hose 3 is stamped and fixed in the inner hole of the second connector 2. The inner hole of the second connector 2 is provided with a second abutment 6. The second abutment 6 is the bottom surface of the inner hole of the second connector 2 or a step provided in the inner hole of the second connector 2.

[0048] The first abutting part 5 and the second abutting part 6 cooperate with each other and abut against the two ends of the shaping hose 3 respectively, in order to limit the displacement of the shaping hose 3 along its axial direction;

[0049] The first end of the cable chain 4 is fixedly connected to or hinged to the first connector 1, and the second end of the cable chain 4 is fixedly connected to or hinged to the second connector 2. The links of the cable chain 4 restrict the rotation angle between the links, so the cable chain 4 can only bend in the same plane. Therefore, the cable chain 4 is used to guide the shaping hose 3, so that the shaping hose 3 bends in the direction that the cable chain 4 can bend, thereby preventing the shaping hose 3 from laterally shifting or twisting during movement.

[0050] Example 2

[0051] See Figure 6 and Figure 7 Based on the above embodiment 1, the first connecting member 1 and the second connecting member 2 are respectively provided with a first mounting bracket 7 and a second mounting bracket 8. The first mounting bracket 7 and the second mounting bracket 8 are each provided with a pair of ribs 9 extending along the axial direction of the connecting member, that is, two ribs 9 arranged in parallel to each other. Each rib 9 is arranged in parallel with the side wall of the drag chain 4. The two ribs 9 are respectively hinged to the two side walls of the drag chain 4 at their respective ends through a hinge shaft.

[0052] In this embodiment, the connecting end of the first connector 1 is a sleeve structure. The inner cavity of the inner sleeve and the inner cavity of the outer sleeve both extend axially and open at the connecting end of the first connector 1. The first end of the shaping hose 3 is inserted into the inner sleeve. The specific fixing method is described in Embodiment 1. The first mounting bracket 7 is fixedly installed in the gap between the inner sleeve and the outer sleeve.

[0053] A first protective shell 11 is installed on the outer wall of the sleeve. The first protective shell is used to protect the hinge between the first mounting bracket 7 and the drag chain 4, prevent damage to the hinge shaft between the first mounting bracket 7 and the drag chain 4, and prevent the hinge from pinching the operator. The hinge between the first mounting bracket 7 and the drag chain 4 is located inside the first protective shell 11.

[0054] In this embodiment, the first protective shell 11 is provided with a reinforcing member 12 extending along the axial direction of the first protective shell 11. The reinforcing member 12 can be a plate-shaped component made of engineering plastic or metal. The reinforcing member 12 is located in the bending direction of the cable chain 4 and is used to limit the bending angle of the cable chain 4 and prevent the bending of the cable chain 4 from damaging the first protective shell 11.

[0055] A second protective shell 13 is installed on the outer periphery of the second mounting bracket 8 to prevent damage to the hinge shaft between the second mounting bracket 8 and the cable chain 4. The hinge part between the second mounting bracket 8 and the cable chain 4 is located inside the second protective shell 13.

[0056] Example 3

[0057] Based on the above embodiment 1, the sidewalls of the first and second ends of the drag chain 4 are provided with connecting edges 14 for connecting the links of the drag chain 4. The first mounting bracket 7 and the second mounting bracket 8 are respectively hinged to the connecting edges 14 at their respective ends via hinge shafts.

[0058] The shaping hose 3 includes a tube body 15 and a reinforcing rib 16. The tube body 15 has a groove spirally distributed on its outer wall. The reinforcing rib 16 is embedded in the groove, so that the reinforcing rib 16 is spirally wound on the outer wall of the tube body 15.

[0059] Alternatively, the shaping hose 3 includes a tube wall band, which spirally wraps around to form several helical rings, and the side edges of adjacent helical rings are connected to each other to form the shaping hose 3; the way the side edges of adjacent helical rings are connected to each other can be found in Chinese patent document CN206600537U (publication date: October 31, 2017), but the specific way the side edges of adjacent helical rings are connected to each other is not limited to this form.

[0060] The cable chain 4 is a semi-enclosed cable chain made of plastic. The semi-enclosed cable chain can only bend along the open side of its links. The semi-enclosed cable chain is equipped with a cover plate for easy placement of the shaping hose 3. The shaping hose 3 can be placed by opening the cover plate. After closing the cover plate, the shaping hose 3 can be reliably confined in the receiving channel of the cable chain 4.

[0061] The cable chain 4 is covered with a protective silicone sleeve 17. The protective silicone sleeve 17 continuously covers the cable chain 4 along its axial direction and can bend synchronously with the cable chain 4 when it bends, effectively preventing dust, debris and liquid from entering the gaps between the links of the cable chain 4.

[0062] An infrared physiotherapy device includes a chassis and a head. The chassis is mounted on a first connecting member 1 via a bracket or other device, and the head is mounted on a second connecting member 2 via a bracket or other device. It also includes a stepless adjustable support arm as described in any one of Embodiments 1 to 3 above.

[0063] The above specific embodiments further illustrate the purpose, technical solution and beneficial effects of this utility model. It should be understood that the above are only specific embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A steplessly adjustable support arm, characterized in that: Includes a first connector (1), a second connector (2), a shaping hose (3), and a cable chain (4); The shaping hose (3) is sleeved in the receiving channel of the drag chain (4). The first end of the shaping hose (3) is inserted into the inner hole of the first connector (1) and abuts against the first abutting part (5) provided in the inner hole of the first connector (1). The second end is inserted into the inner hole of the second connector (2) and abuts against the second abutting part (6) provided in the inner hole of the second connector (2). The first end of the drag chain (4) is mounted on the first connector (1), and the second end is mounted on the second connector (2) to guide the shaping hose (3) to bend along the bending direction of the drag chain (4).

2. The continuously adjustable support arm as described in claim 1, characterized in that: The first connector (1) and the second connector (2) are respectively provided with a first mounting bracket (7) and a second mounting bracket (8). The first mounting bracket (7) and the second mounting bracket (8) are each provided with a pair of ribs (9) extending along the axial direction of their respective connectors. Each rib (9) is arranged parallel to the side wall of the drag chain (4). The pair of ribs (9) are respectively hinged to the two side walls of the drag chain (4) at their respective ends through hinges.

3. The continuously adjustable support arm as described in claim 2, characterized in that: The connecting end of the first connector (1) is a sleeve structure, the shaping hose (3) is inserted into the inner sleeve, and the first mounting bracket (7) is set in the gap between the inner sleeve and the outer sleeve; A first protective shell (11) is installed on the outer wall of the sleeve, and the hinge of the first mounting bracket (7) and the drag chain (4) is located inside the first protective shell (11).

4. The continuously adjustable support arm as described in claim 3, characterized in that: The first protective shell (11) is provided with a reinforcing member (12) extending axially along the first protective shell (11), and the reinforcing member (12) is located in the bending direction of the drag chain (4).

5. The continuously adjustable support arm as described in claim 2, characterized in that: A second protective shell (13) is installed on the outer periphery of the second mounting bracket (8), and the hinge of the second mounting bracket (8) and the drag chain (4) is located inside the second protective shell (13).

6. The continuously adjustable support arm as described in claim 2, characterized in that: The first and second end sidewalls of the drag chain (4) are provided with connecting edges (14) for connecting the drag chain (4) links. The first mounting bracket (7) and the second mounting bracket (8) are respectively hinged to the connecting edges (14) at their respective ends.

7. The continuously adjustable support arm as described in claim 1, characterized in that: The shaped flexible tube (3) includes a tube body (15) and reinforcing ribs (16). The tube body (15) has grooves spirally distributed on its outer wall. The reinforcing ribs (16) are embedded in the grooves, so that the reinforcing ribs (16) are spirally wound around the outer wall of the tube body (15). Alternatively, the shaping hose (3) may include a tube wall band, which is spirally wound to form a plurality of helical rings, and the side edges of adjacent helical rings are connected to each other to form the shaping hose (3).

8. The steplessly adjustable support arm as described in claim 1, characterized in that: The cable chain (4) is a semi-enclosed cable chain made of plastic, and the semi-enclosed cable chain can only bend along its open side.

9. The steplessly adjustable support arm as described in claim 1, characterized in that: The drag chain (4) is fitted with a protective silicone sleeve (17) around its periphery.

10. An infrared physiotherapy device, comprising a chassis and a head, wherein the chassis is mounted on a first connecting member (1) and the head is mounted on a second connecting member (2), characterized in that: It also includes the continuously adjustable support arm as described in any one of claims 1 to 9.

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