A connection structure

Abstract

The application provides a connecting structure for connecting a first device and a second device, comprising: a first connecting component capable of being fixedly arranged on the first device, the first connecting component comprising a shaft sleeve; a second connecting component capable of being fixedly arranged on the second device, the second connecting component comprising a connecting rod; the two ends of the connecting rod are respectively arranged in the shaft sleeve, the connecting rod and the shaft sleeve are in clearance fit, and the connecting rod can rotate relative to the shaft sleeve. The connecting rod of the second connecting component and the shaft sleeve of the first connecting component are in clearance fit, so that the first device and the second device connected by the connecting structure can not only change by a certain angle, but also the connection between the devices is more stable and firm. The first device and the second device connected with each other can be synchronized in movement, and the collision is reduced.

Description

Technical Field

[0001] This application relates to the field of connection technology between medical devices and external devices, and in particular to a connection structure. Background Technology

[0002] With the development of electrification and intelligence in medical equipment, and the increasing demand for convenient equipment, medical equipment is becoming increasingly reliant on energy, leading to a sharp increase in power consumption. For some devices, such as C-arm systems, to facilitate inter-departmental transport, processes like transport, axis movements, and X-ray exposure need to be completed in rooms without electricity or where wiring is inconvenient. Therefore, these devices require their own power supply with a certain amount of stored power. Existing technologies integrate UPS (Uninterruptible Power Supply) within the vehicle body for self-powering when the mains power is interrupted. However, with internal integration, the power supply cannot be easily disassembled or replaced in case of failure. If an external mobile power supply is used, ensuring smooth movement between the power supply and the medical equipment under different ground conditions is crucial. This is because collisions can easily damage such large medical equipment. Summary of the Invention

[0003] In view of this, this application provides a connection structure that can be used to connect medical devices and power banks. The connection structure ensures a stable connection between the medical devices and the power banks through a clearance fit between the connecting shaft and the bushing.

[0004] This application provides a connection structure for connecting a first device and a second device, comprising:

[0005] A first connecting component, which can be fixedly mounted on the first device, includes a bushing;

[0006] A second connecting component, which can be fixedly mounted on the second device, includes a connecting rod;

[0007] Both ends of the connecting rod are respectively inserted into the bushing, the connecting rod and the bushing are clearance-fitted, and the connecting rod can rotate relative to the bushing.

[0008] Furthermore, the connecting rod includes a connecting shaft and a sleeve, the sleeve being detachably and fixedly fitted onto both ends of the connecting shaft, and the connecting rod being clearance-fitted with the bushing through the sleeve.

[0009] Furthermore, the bushing has a notch, and the diameters at both ends of the connecting shaft are smaller than the width of the notch, so that the connecting shaft can enter the bushing through the notch.

[0010] Furthermore, the sleeve is provided with a limiting part protruding from the outer surface of the sleeve, the limiting part being located outside the bushing to prevent the connecting rod from moving axially.

[0011] Furthermore, one end of the sleeve has an internal thread, both ends of the connecting shaft are provided with external threads that mate with the internal thread, and the other end of the sleeve is provided with a fastener for driving the internal thread and the external thread to move relative to each other.

[0012] Furthermore, it also includes a limiting component, which can be relatively fixed to the first device or the second device. The limiting component is used to limit the rotation angle of the connecting rod and prevent the first device and the second device from contacting each other.

[0013] Furthermore, the second connecting assembly also includes a fixing seat that is fixedly connected to the second device, and the connecting rod is fixedly inserted into the upper hole of the fixing seat.

[0014] Furthermore, the first connecting assembly also includes a connecting plate, one side of which is provided for connecting the first device, and the bushing is fixedly installed on the other side of the connecting plate.

[0015] Furthermore, it also includes a limiting component, which is disposed on the second device. When the connecting rod rotates to a preset angle, the limiting component abuts against the connecting plate to prevent the first device and the second device from contacting each other.

[0016] Furthermore, the first device is a medical device, and the second device is a power bank.

[0017] The technical solutions provided by the embodiments of this application may include the following beneficial effects:

[0018] This application utilizes a clearance fit between the connecting rod of the second connecting component and the bushing of the first connecting component, enabling not only a certain angular change between the first and second devices connected by the connection structure, but also a more stable and secure connection between the devices. The first and second devices, after being connected, can move synchronously, reducing collisions. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure after the medical device and the power bank are connected by a connection structure;

[0020] Figure 2 This is a schematic diagram of the connection structure (in which the first connection component is separated from the first device and the sleeve of the second connection component is removed);

[0021] Figure 3 This is an exploded view of the connection structure;

[0022] Figure 4 It is a longitudinal cross-sectional view of the connecting structure along the connecting axis.

[0023] Figure label:

[0024] 100. First connecting assembly; 200. Second connecting assembly; 300. Limiting assembly; 400. Medical device; 500. Power bank; 11. Connecting plate; 12. Bushing; 121. Notch; 13. Connecting post; 21. Connecting rod; 211. Step; 212. Connecting shaft; 213. Sleeve; 2131. Limiting part; 2132. Fastener; 22. Fixing seat; 221. Hole; 24. Anti-rotation screw; 31. Limiting block; 32. Mounting seat. Detailed Implementation

[0025] The specific embodiments of this application are described in detail below with reference to the accompanying drawings.

[0026] like Figure 1 and 2As shown, this application provides a connection structure capable of connecting two independent devices. In this embodiment, the connection structure is used to connect a medical device 400 and a power bank 500. As shown in the figure, the connection structure includes a first connection component 100 and a second connection component 200, wherein the first connection component 100 is fixed to the medical device 400, and the second connection component 200 is fixed to the power bank 500. The connection structure realizes the interconnection between the medical device 400 and the power bank 500 through the mutual connection of the first connection component 100 and the second connection component 200, enabling the power bank 500 to provide a continuous and stable power supply to the medical device 400. Compared with the existing technology's internally integrated uninterruptible power supply solution, the method of using an external power bank proposed in this application shows considerable advantages. For medical devices with internally integrated uninterruptible power supplies, the size of the medical device itself is already quite large. Adding a built-in power supply on this basis will further increase its size, making it more susceptible to space constraints during the transportation of the device, such as in relatively confined areas like elevators. Therefore, even with an internal power supply, the capacity is limited by size requirements. However, for some medical devices, such as C-arm devices, the movement of the device itself, the motion of each axis, or surgical exposure all require a large amount of energy, and a small-capacity battery simply cannot meet its operational needs. This application solves the problem caused by the built-in power supply by stably connecting the medical device and the mobile power supply through a connection structure. Compared with existing solutions, the solution proposed in this application not only reduces the size of the medical device and increases its flexibility, but also allows for quick disassembly and charging when the mobile power supply is not in use. Furthermore, since the mobile power supply is replaceable, the overall battery life of the medical device can be increased by replacing it with a mobile power supply with one of larger capacity, enabling long-term transport or surgery even in locations without power.

[0027] The connection structure proposed in this application is also applicable to other application scenarios that require connecting two devices. Specifically, the first connection component 100 can be installed on a device with a large mass or one that is difficult to lift, while the second connection component 200 can be installed on a device with a relatively small mass and easy mobility.

[0028] The first connecting component 100 can be fixed to one side of the medical device 400 with screws. To facilitate stable movement between the connected medical device 400 and the power bank 500, the first connecting component 100 is preferably fixed to the outer surface of the medical device 400 in its normal movement direction. If the movement direction of the medical device 400 is not suitable for installing the first connecting component 100, it can also be fixed to a relatively flat side of the medical device 400, depending on the installation difficulty of the outer surface of the medical device 400. In this embodiment, to distinguish the different surfaces of the medical device 400, the front of the medical device 400 is defined as the side with the C-arm installed, and the back is the side opposite to the front. During the transport of the medical device 400, it normally moves in the direction from the back to the front. The first connecting component 100 can be installed on either the front or the back of the medical device 400. However, since the front of the medical device 400 is obstructed by the C-arm and the protruding roller base, the first connecting component 100 is fixed to the back of the medical device 400. Since the surface of the power bank 500 is usually relatively flat, the second connecting component 200 can be fixed to one side of the power bank 500 for ease of movement after installation.

[0029] like Figure 2 and Figure 3 As shown, the first connecting assembly 100 includes a connecting plate 11 and two bushings 12. The bushings 12 are fixed to both ends of the connecting plate 11 by screws, and the connecting plate 11 is fixed to the medical device 400 by screws. In some embodiments, the bushings 12 can also be directly installed on the medical device 400. In this embodiment, the connecting plate 11 provides a flat mounting platform for the bushings 12, which facilitates the installation and fixing of the bushings 12 and reduces the requirements for the flatness of the surface of the medical device 400 and the installation space for the bushings 12.

[0030] like Figure 3 and Figure 4 As shown, the second connecting assembly includes a connecting rod 21 and a fixing seat 22. The fixing seat 22 has a hole 221, through which the connecting rod 21 passes and is fixedly connected to the fixing seat 22. Furthermore, to prevent the connecting rod 21 from rotating or moving relative to the fixing seat 22, an anti-rotation screw 24 can be added. The anti-rotation screw 24 fixes the connecting rod 21 to the fixing seat 22, preventing synchronous rotation of the connecting rod 21 and the sleeve 213 when screwed into the sleeve 213. In some embodiments, the number of fixing seats 22 can be one or more. In this embodiment, two fixing seats 22 are provided. By fixing the connecting rod 21 with two fixing seats 22, the connection strength of the second connecting assembly is improved compared to a single fixing seat 22. Both fixing seats 22 are fixed to the power bank, and the second connecting assembly 200 is fixedly connected to the power bank 500 through the fixing seats 22.

[0031] Both ends of the connecting rod 21 pass through two bushings 12 and are clearance-fitted with the bushings 12. This configuration allows the connecting rod 21 to rotate within the bushings 12, enabling relative positional changes when the medical device 400 and the power bank 500 traverse sloping ground. For example, when moving uphill, the medical device 400, which is moving first, will move from flat ground to the slope, while the power bank 500 remains on flat ground. This results in an angle between the two devices. If they were fixedly connected, the contact point between the first and second connecting components would be subjected to significant force, potentially causing damage or breakage to the connection structure. The bushing-hole fit allows the connecting rod 21 to rotate at a certain angle within the bushings 12 according to the positions of the two devices, making the transport of the medical device 400 adaptable to various ground conditions (e.g., uneven surfaces, gaps), reducing transport difficulty. Simultaneously, the use of a clearance fit allows the gap between the connecting rod 21 and the bushing 12 to be controlled within a relatively small range. During their joint movement, this reduces equipment swaying and noise caused by excessive clearance, ensuring synchronized movement. When the medical device 400 and the power bank 500 traverse uneven ground or accelerate / decelerate, their relative positions change. If the gap between the connecting rod 21 and the bushing 12 is too large, the connecting rod 21 will have excessive space to wobble within the bushing 12, leading to noticeable swaying between the devices. Especially in the medical equipment field, where equipment is not only expensive but also requires a high-quality operating environment (avoiding shaking and collisions), the stability of the connection structure is paramount.

[0032] The connecting rod 21 includes a connecting shaft 212 and sleeves 213 that can be detachably fitted and fixed to both ends of the connecting shaft 212. The outer diameter of the sleeve 213 is slightly smaller than or equal to the inner diameter of the bushing 12, so that the sleeve 213 fits with the bushing 12 with a clearance fit. To facilitate the assembly of the connecting rod 21 and the bushing 12, a notch 121 is provided on the bushing 12, the width of which is larger than the diameter of both ends of the connecting shaft 212. During assembly, the connecting shaft 212 can be slid into the bushing 12 through the notch 121, and then the sleeves 213 are fitted onto both ends of the connecting shaft 212, so that the sleeves 213 are accommodated in the bushing 12.

[0033] In this embodiment, the notch 121 of the bushing 12 faces upwards, meaning the notch 121 is located in the direction away from the ground. Generally, when the first connecting component 100 and the second connecting component are separated, the axial height of the connecting shaft 212 is equal to or slightly higher than the axial height of the bushing 12, so that the connecting shaft 212 can be stably held within the bushing 12 after it enters. Because the notch 121 faces upwards, the power supply 500 needs to be gently lifted during the insertion of the connecting rod 21 into the bushing 12, allowing the connecting shaft 212 to enter the bushing 12 through the notch 121. In some embodiments, the notch 121 of the bushing 12 can also face the power supply 500. In this case, by designing the width of the notch 121 to be greater than the diameter of the connecting shaft 212, and further designing the relative height relationship between the notch 121 and the connecting shaft 212, lifting the power supply 500 can be avoided. However, compared to the implementation scheme of this embodiment, although it is relatively simple for the connecting rod 21 to enter the bushing 12, it is difficult during the assembly process of the sleeve 213. Because the bushing 12 does not restrict the connecting shaft 212, the connecting shaft 212 will come out of the bushing 12 with even slight movement, increasing the installation difficulty.

[0034] The sleeve 213 and the connecting shaft 212 are fixed by a threaded connection. The inner surface of the sleeve 213 is threaded, and the outer surface of the end of the connecting shaft 212 is threaded to mate with the inner thread of the sleeve 213. A fastener 2132 is provided at the end of the sleeve 213 away from the thread to drive the movement of the sleeve 213. In this embodiment, the fastener 2132 is an external hexagonal bolt; in other embodiments, the fastener 2132 can also be an internal hexagonal bolt or other similar components. Using the fastener 2132, during the assembly or disassembly of the sleeve 213 and the connecting shaft 212, external force can be applied to the fastener 2132 to drive the movement of the sleeve 213, thereby increasing the assembly speed.

[0035] In this embodiment, the internal thread length of the sleeve 213 is greater than the external thread length at the end of the connecting shaft 212. In other embodiments, the internal thread length of the sleeve 213 may be less than or equal to the external thread length at the end of the connecting shaft 212. Because medical devices and power banks 500 are relatively large, and the connecting structure is usually located at the bottom where it has less impact on personnel, the assembly personnel's view is obstructed by the device after the connecting shaft 212 is inserted into the bushing 12. This makes it difficult for the assembly personnel to promptly determine whether the assembly of both ends of the sleeve 213 is complete during the sleeve 213 assembly process. Sometimes, the sleeve 213 has already been assembled, but the assembly personnel continue to rotate the fastener 2132, leading to damage to the threaded structure. Furthermore, during the sleeve 213 assembly process, the two ends of the sleeve 213 are usually not assembled simultaneously; one end must be assembled before the other. Therefore, assembling the other end before determining whether one end is properly assembled can easily lead to a large difference in the fit between the sleeve 213 and the two ends of the connecting shaft 212, affecting the connection effect of the connecting structure. To ensure proper alignment of the sleeves 213 at both ends, assemblers typically need to adjust them back and forth, significantly reducing assembly speed. To address this issue, in this embodiment, a limiting part 2131 is provided on the sleeve 213. The limiting part 2131 protrudes from the circumferential surface of the sleeve 213. During assembly, as the sleeve 213 moves, the limiting part 2131 continuously approaches the bushing 12. Once the limiting part 2131 contacts or is about to contact the bushing 12, the assembler can immediately stop rotating the fastener 2132. This ensures that the connection length between the two ends of the connecting shaft 212 and the sleeve 213 is consistent, while also improving assembly speed. Simultaneously, since the limiting parts 2131 on both sides abut against the outside of the bushing 12, they also restrict the axial movement of the connecting shaft 212 within the bushing 12, preventing the first connecting assembly 100 from detaching from the second connecting assembly 200.

[0036] Because both the medical device and the power bank 500 are relatively large in size and weight, a higher requirement is placed on the simplicity of the assembly process. In this embodiment, during assembly, the power bank 500 needs to be slightly lifted before the connecting shaft 212 is placed into the bushing 12. Figure 3As shown, to enable the connecting shaft 212 to be quickly positioned with the bushing 12 after being inserted into it, two steps 211 can be provided on the connecting shaft 212. The two steps 211 are symmetrically distributed on the connecting shaft 212, and the distance between the two steps 211 is slightly less than the minimum distance between the two bushings 12, so that the bushing 12 is positioned outside the two steps 211, facilitating the assembly of the sleeve 213. Furthermore, when the diameter of the step 211 is larger than the diameter of the end of the connecting rod 21, the step 211 can also serve as a limiting structure between the connecting shaft 212 and the bushing 12, preventing the connecting shaft 212 from moving axially within the bushing 12 and preventing the first connecting assembly 100 from disengaging from the second connecting assembly 200. Additionally, when the sleeve 213 does not have a limiting part 2131, the step 211 can also serve as a limiting element, indicating that the fastener 2132 should stop rotating, protecting the threaded structure.

[0037] The sleeve 213 has a chamfer at one end with the internal thread. This chamfer guides the assembly process between the sleeve 213 and the connecting shaft 212, improving assembly speed. Similarly, chamfers can also be provided at both ends of the bushing 12 to facilitate the insertion of the sleeve 213 into the bushing 12. Furthermore, the chamfers on both sides effectively reduce the contact area between the step 211 on the connecting shaft 212 and the bushing 12, as well as between the upper limit portion 2131 of the sleeve 213 and the bushing 12, reducing friction and facilitating the rotation of the connecting rod 21 and the bushing 12.

[0038] Although the connecting shaft 212 can rotate within the bushing 12, allowing the connected medical device 400 and power bank 500 to adapt to more ground conditions, excessive rotation can easily cause the medical device 400 and power bank 500 to collide. For the medical device 400, impacts can easily damage its internal parts, causing significant losses, especially unintentional collisions, which are usually quite forceful and can easily damage the medical device 400. To prevent such incidents, the connection structure also includes a limiting component 300 to restrict contact between the medical device 400 and the power bank 500. The limiting component 300 is fixed to the medical device 400 or the power bank 500 directly or indirectly. In this embodiment, the limiting component 300 is directly fixed to the power bank 500. When the connecting shaft 212 rotates in the bushing 12, and the power bank 500 and the medical device 400 approach each other to a certain extent but have not yet made contact, the limiting component 300 can restrict the connecting shaft 212 from rotating further, thus preventing the power bank 500 from colliding with the medical device 400.

[0039] Specifically, such as Figure 2 and Figure 3As shown, the limiting component 300 may include a limiting block 31, which can be directly or indirectly fixed to the power bank 500 or the medical device 400. When the limiting block 31 is directly fixed to the power bank 500, rotating the connecting shaft 212 to a certain extent will cause the limiting block 31 to abut against the first connecting component 100 or the medical device 400. To prevent damage to the medical device 400 caused by the limiting block 31 abutting against the first connecting component 100, the limiting block 31 can be placed against the first connecting component 100. In this embodiment, the limiting block 31 abuts against the connecting plate 11 of the first connecting component 100. To further reduce the impact of the abutment on the medical device 400, the connecting plate 11 is also provided with a connecting post 13 protruding outward from the connecting plate 11, and the connecting plate 11 is fixed to the medical device 400 through the connecting post 13. Because of the presence of the connecting post 13, there is a certain space between the connecting plate 11 and the medical device 400. Even if the connecting plate 11 is deformed due to the abutment of the limiting block 31, the connecting plate 11 will not touch the medical device 400.

[0040] In some embodiments, the limiting block 31 can also be installed on the second connecting assembly 200, for example, on the connecting shaft 212. When the connecting shaft 212 rotates at a certain angle, the limiting block 31 abuts against the connecting plate 11. In other embodiments, the limiting block 31 can also be installed on the connecting plate 11 of the first connecting assembly 100.

[0041] To reduce the damage to the equipment or connection structure that the limit block 31 is pressed against, the side of the limit block 31 used for pressing is designed to be arc-shaped.

[0042] In this embodiment, the limiting component 300 may further include a mounting base 32. The limiting block 31 is fixedly engaged with the mounting base 32 by screws. The mounting base 32 has an L-shaped cross-section and is fixed to the junction of the bottom and side surfaces of the power supply 500. The two ends of the L-shape are connected to the bottom and side surfaces of the power supply 500, respectively, thereby improving the installation strength between the limiting component 300 and the power supply 500. To make the connection structure more compact, the mounting base 32 is installed between the two fixing seats 22 of the second connecting component 200.

Claims

1. A connection structure for connecting a first device and a second device, characterized in that, include: A first connecting component (100) is fixedly mounted on the first device, and the first connecting component (100) includes a bushing (12). The second connecting component (200) can be fixedly mounted on the second device, and the second connecting component (200) includes a connecting rod (21). The two ends of the connecting rod (21) are respectively inserted into the bushing (12), the connecting rod (21) and the bushing (12) are in clearance fit, and the connecting rod (21) can rotate relative to the bushing (12); The connecting rod (21) includes a connecting shaft (212) and a sleeve (213). The sleeve (213) can be detachably fixedly sleeved on both ends of the connecting shaft (212). The bushing (12) has a notch (121). The diameter of both ends of the connecting shaft (212) is smaller than the width of the notch (121). During the assembly process, the connecting shaft (212) is moved into the bushing (12) through the notch (121), and then the sleeve (213) is sleeved on both ends of the connecting shaft (212) so that the sleeve (213) is accommodated in the bushing (12). The connecting rod (21) is clearance-fitted with the bushing (12) through the sleeve (213).

2. The connection structure according to claim 1, characterized in that, The sleeve (213) is provided with a limiting part (2131) protruding from the outer surface of the sleeve (213). The limiting part (2131) is located outside the bushing (12) to prevent the connecting rod (21) from moving axially.

3. The connection structure according to claim 1, characterized in that, One end of the sleeve (213) has an internal thread, and both ends of the connecting shaft (212) are provided with external threads that mate with the internal thread. The other end of the sleeve (213) is provided with a fastener (2132) for driving the internal thread and the external thread to move relative to each other.

4. The connection structure according to claim 1, characterized in that, It also includes a limiting component (300), which can be relatively fixed to the first device or the second device. The limiting component (300) is used to limit the rotation angle of the connecting rod (21) to prevent the first device and the second device from contacting each other.

5. The connection structure according to claim 1, characterized in that, The second connecting assembly (200) further includes a fixing seat (22) fixedly connected to the second device, and the connecting rod (21) is fixedly inserted into the upper hole (221) of the fixing seat (22).

6. The connection structure according to claim 1, characterized in that, The first connecting assembly (100) further includes a connecting plate (11), one side of which is provided for connecting the first device, and the bushing (12) is fixedly installed on the other side of the connecting plate (11).

7. The connection structure according to claim 6, characterized in that, It also includes a limiting component (300), which is disposed on the second device. When the connecting rod (21) rotates to a preset angle, the limiting component (300) abuts against the connecting plate (11) to prevent the first device and the second device from contacting each other.

8. The connection structure according to claim 1, characterized in that, The first device is a medical device, and the second device is a portable power bank.

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