Automatic wire harness winder and operating bed with same

Abstract

The utility model discloses an automatic wire harness winder and an operating bed with the same, the automatic wire harness winder comprises a drag chain, a rotary table, a slewing bearing assembly and a coil spring, the rotary table is arranged to be a rotary body, the drag chain is wound on the peripheral side of the rotary table, one end of the drag chain is fixed to a bed board, and the other end of the drag chain is fixed to the rotary table; the slewing bearing assembly comprises a first part and a second part which can rotate relatively, the turntable is fixed relative to the first part, and the second part is fixedly arranged relative to the bed main body; one end of the coil spring is fixed relative to the first part, the other end is fixed relative to the second part, and the elastic force of the coil spring is used for driving the first part to rotate relative to the second part towards the drag chain around the upper turntable; a wiring cavity is formed in the drag chain, and a wire harness penetrating out of the bed body penetrates through a first center wire passing hole in the slewing bearing assembly, then extends outwards through the wiring cavity and is connected to the position fixed relative to the bed board. The automatic winding device for the wire harness can realize automatic winding of the connecting wire harness.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a wire harness automatic coiling device and a surgical bed with the same. BACKGROUND

[0002] The bedside controller is an indispensable and most important controller of an X-ray digital subtraction angiography (DSA). The doctor performs positioning, exposure and other operations in the operating room through the bedside controller. In order to meet the requirement that the bedside controller moves with the doctor in a large range, the wire harness connected between the bedside controller and the main body of the surgical bed needs to be reserved to be relatively long. These wire harnesses will dangle and drag on the ground, which not only hinders the positioning and movement of other equipment, but also brings inconvenience to the movement of medical staff. In order to avoid the influence of the messy wire harness, the current solution is usually that the medical staff regularly arranges and hangs in a convenient position beside the bed, which is not convenient enough. CONTENT OF THE UTILITY MODEL

[0003] The present application provides a wire harness automatic coiling device which can realize automatic coiling of the connected wire harness.

[0004] According to a first aspect of the present application, a wire harness automatic coiling device is provided, which is used to be installed on a surgical bed, the surgical bed comprising a bed main body and a bed plate capable of translating relative to the bed main body, and the wire harness automatic coiling device comprising a turntable, a slewing bearing assembly and a coiled spring, wherein:

[0005] The turntable is arranged as a rotary body, and the wire harness passing out of the bed main body is arranged around the outer periphery of the turntable, one end of the wire harness being fixed relative to the bed plate and the other end being fixed relative to the turntable;

[0006] The slewing bearing assembly comprises a first part and a second part capable of relative rotation, the turntable being fixed relative to the first part, and the second part being fixedly arranged relative to the bed main body;

[0007] One end of the coiled spring is fixed relative to the first part, and the other end is fixed relative to the second part, and the elastic force of the coiled spring is used to drive the first part to rotate relative to the second part in the direction in which the wire harness is wound around the turntable.

[0008] Further, the wire harness automatic coiling device further comprises a drag chain, the drag chain being arranged around the outer periphery of the turntable and having two ends fixed to the bed plate and the turntable respectively; the drag chain is provided with a wire passing cavity, and the wire harness passing out of the bed main body extends outward through the wire passing cavity after passing through the first center wire passing hole on the slewing bearing assembly and is connected to a position fixed relative to the bed plate.

[0009] Furthermore, the slewing bearing assembly includes a bearing, a bearing upper cover, and a bearing lower cover, wherein: the bearing upper cover and the bearing lower cover are fixed relative to each other and together fix the inner ring of the bearing, the outer ring of the bearing is fixed relative to the turntable, the first part includes the outer ring, and the second part includes the bearing upper cover, the bearing lower cover, and the inner ring.

[0010] Furthermore, the first central through hole axially extends through the lower bearing cover. The lower bearing cover includes a connecting body, an upper cover support ring, an outer positioning ring, and a central ring portion. The upper cover support ring is disposed on the upper side of the connecting body and is used to fix the upper bearing cover. The outer positioning ring is disposed on the outer periphery of the connecting body and surrounds the upper cover support ring. The central ring portion is disposed on the lower side of the connecting body, and a positioning slot for fixing the inner ring end of the coil spring is provided on the central ring portion. In the assembled state, the inner ring of the bearing is clamped and fixed between the annular edge of the upper bearing cover that extends radially outward beyond the upper cover support ring and the outer positioning ring.

[0011] Furthermore, the automatic wire harness reel also includes a mounting plate fixedly installed to the bed body, the mounting plate having a second central wire passage hole for the wire harness to pass through; the bearing lower cover also includes an inner positioning ring extending downward from the central ring portion, the inner positioning ring being inserted into the second central wire passage hole.

[0012] Furthermore, the automatic wire harness reel also includes a tray, which is arranged in a ring shape and fixedly disposed on the lower end side of the turntable. One side of the tray forms a ring-shaped support surface on the outer periphery of the turntable for supporting the cable chain.

[0013] Furthermore, the automatic wire harness reel also includes a coil spring outer stop fixedly disposed on the other side plate of the tray. The coil spring outer stop is disposed around the outer periphery of the central ring portion. The coil spring is disposed in the annular space between the central ring portion and the coil spring outer stop, and the outer end of the coil spring is fixed to the tray by a coil spring fixing block.

[0014] Furthermore, the automatic wire harness reel also includes an outer baffle fixedly installed to the bed body, the outer baffle surrounding the mounting plate and having a notch for the cable chain to pass through from the inside to the outside.

[0015] Furthermore, the cable chain includes multiple rotatably connected links, the cavities within the multiple links are connected to form the cable routing cavity, and / or, the side of the turntable is provided with a cable pass-through port for the cable harness to pass through and enter the cable routing cavity.

[0016] According to a second aspect of this application, an operating table is also provided, the operating table including the above-described automatic wire harness rewinder.

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

[0018] When the bed board translates relative to the bed body, since one end of the cable chain is fixed to the bed board and the other end is fixed to the turntable, when the bed board translates in one direction relative to the bed body, the end of the cable chain fixed to the bed board moves with the bed board's translation. This allows the turntable to rotate circumferentially under the drive of the cable chain. The turntable is fixed relative to the first part of the slewing bearing assembly, while the second part of the slewing bearing assembly is fixed relative to the bed body. Therefore, the turntable can rotate relative to the bed body under the slewing bearing action of the slewing bearing assembly, thus meeting the release requirements of the cable chain and its internal wiring harness. At the same time, the two ends of the coil spring are fixed to the first and second parts of the slewing bearing assembly, respectively. Therefore, the rotation of the first part relative to the second part causes the coil spring to accumulate elastic potential energy. Thus, when the bed board translates in the opposite direction, the elastic potential energy accumulated in the coil spring is released, causing the first part to rotate in the opposite direction relative to the second part, which in turn drives the turntable to rotate in the opposite direction, thereby causing the cable chain to be rewound around the outer circumference of the turntable. During this process, the wire harness exiting the bed body enters the cable routing cavity within the cable chain through the first central hole on the slewing bearing assembly and extends outward. The wire harness can be wound / unwound along with the cable chain on the turntable, and is not affected by the relative rotation between the first and second parts of the slewing bearing assembly. The solution in this application enables automatic winding and unwinding of the wire harness between the bed board and the bed body, avoiding problems such as wire harness sagging and dragging on the ground. Attached Figure Description

[0019] Figure 1 This is an exploded structural diagram of an automatic wire harness reel in one embodiment of this application;

[0020] Figure 2 yes Figure 1 The diagram shows the assembly structure of the automatic wire harness reel, omitting the outer retaining ring structure.

[0021] Figure 3 yes Figure 2 A cross-sectional view of the assembly structure shown;

[0022] Figure 4 This is a schematic diagram of the bearing lower cover in an automatic wire harness reel according to an embodiment of this application;

[0023] Figure 5 yes Figure 4 Another perspective view of the bearing cover shown;

[0024] Figure 6 yesFigure 3 Enlarged view of part A of the assembly structure shown in the figure;

[0025] Figure 7 yes Figure 3 Enlarged view of part B of the assembly structure shown in the diagram;

[0026] Figure 8 This is a schematic diagram of an automatic wire harness reel in an embodiment of the present application installed on an operating table. In the figure, the cable chain and the wire harness inside the cable chain are in an extended state.

[0027] Figure 9 yes Figure 8 Another state view of the structure shown, in which the cable chain and the wire harness inside the cable chain are in a wound state.

[0028] Explanation of reference numerals in the attached figures:

[0029] 100. Automatic wire harness reel; 200. Bed board; 300. Bed body;

[0030] 11. Cable carrier; 111. Fixed end; 112. Cable routing cavity; 12. Turntable; 121. Cable passage port; 13. Tray; 14. Slewing bearing assembly; 141. Bearing; 142. Bearing upper cover; 143. Bearing lower cover; 1431. Positioning slot; 1432. Upper cover support ring; 1433. Connecting body; 1434. Outer positioning ring; 1435. Central ring; 1436. Inner positioning ring; 1437. First central cable passage hole; 15. Coil spring; 151. Inner ring end; 152. Outer ring end; 16. Coil spring outer stop; 17. Coil spring fixing block; 18. Outer baffle; 19. Mounting plate; 191. Second central cable passage hole. Detailed Implementation

[0031] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The modes described in the following exemplary embodiments do not represent all modes consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0032] The embodiments of this application will now be described in detail with reference to the accompanying drawings. Unless otherwise specified, the features in the following embodiments can be combined with each other.

[0033] First refer to Figure 8 and Figure 9The figure shows the structure of an operating table used in an operating room, including a main body 300 and a bed board 200 that can translate relative to the main body 300. Controllers for controlling the electrical functions of the operating table and surrounding equipment are located inside the main body 300; therefore, wiring harnesses extend outwards from the main body 300. For ease of wiring harness management, the wiring harnesses extending outwards from the main body 300 are usually fixed relative to the bed board 200 before being connected to relevant equipment that needs to be electrically connected to the operating table, such as bedside controllers.

[0034] Because the bed board 200 is relative to the bed body 300, as... Figure 8 and Figure 9 The illustrated translational movement necessitates that the wiring harnesses extending within the bed body 300 be of sufficient length to prevent breakage after the bed board 200 translates. When the bed board 200 is in... Figure 9 In the state shown, to prevent the reserved wire harness from drooping to the ground or being dragged on the ground, the wire harness automatic winding device 100 provided in one embodiment of this application can be used. The wire harness automatic winding device 100 can automatically wind / unwind the wire harness as the bed board 200 moves.

[0035] like Figure 1 and Figure 2 As shown in the illustration, an automatic wire harness reel 100 according to an embodiment of this application includes: a turntable 12, a slewing bearing assembly 14, and a coil spring 15. The turntable 12 is configured as a rotating body structure, and the wire harness passing through the bed body 300 is wound around the outer periphery of the turntable 12. Both ends of the wire harness are respectively fixed to the bed board 200 and the turntable 12. When the bed board 200 translates, one end of the wire harness is pulled along with the movement of the bed board 200, thereby causing the turntable 12 to rotate.

[0036] like Figure 2 As shown, in some embodiments, to prevent the wire harness from being directly pulled by external forces, the automatic wire harness reel 100 may also include a cable chain 11, one end of which is configured as... Figure 2 The fixed end 111 marked in the middle is fixed to the turntable 12; the other end of the cable chain 11 is fixed to... Figure 8 , Figure 9The bed board 200 shown in the diagram has a cable routing cavity 112 within the cable chain 11, and a first central cable passage hole 1437 at the center of the slewing bearing assembly 14. The turntable 12 has a cable passage opening 121 on its side for the cable harness to pass through and enter the cable routing cavity 112; in the illustrated embodiment, this cable passage opening 121 is located near the fixed end 111 of the cable chain 11. The cable harness exiting the bed body 300 passes through the first central cable passage hole 1437, then through the cable passage opening 121, exits the area surrounded by the turntable 12, enters the cable routing cavity 112, extends outward, and connects to a position relatively fixed to the bed board 200. In this way, the cable harness is wound around the turntable 12 and fixed in two places via the cable chain.

[0037] The slewing bearing assembly 14 includes a first part and a second part that are rotatable relative to each other. The turntable 12 is fixed relative to the first part, while the second part is fixed relative to... Figure 8 , Figure 9 The bed body 300 shown is fixed. Thus, the turntable 12 is rotatably supported on the bed body 300.

[0038] The coil spring 15 provides the power for the turntable 12 to rotate in one direction, thereby winding the cable chain 11. One end of the coil spring 15 is fixed relative to the first part of the slewing bearing assembly 14, and the other end is fixed relative to the second part. When the turntable 12 and the first part rotate in one direction relative to the second part under the pull of one end of the cable chain 11, the cable chain 11 unwinds, and at the same time, the coil spring 15 also unwinds and accumulates elastic potential energy. When the pull of the cable chain 11 is removed (e.g., along the bed board 200), the cable chain 11 unwinds. Figure 9 When the hollow arrow moves in the direction indicated, the elastic potential energy stored in the coil spring 15 is released and drives the turntable 12 to rotate in the opposite direction, thereby realizing the winding of the drag chain 11.

[0039] Since the first and second parts of the slewing bearing assembly 14 rotate relative to each other, passing the wire harness through the first central wire through hole 1437 can reduce the impact of this relative rotation on the wire harness. At the same time, the wire harness extends outward through the cable routing cavity 112 in the cable carrier 11, and the cable carrier 11 can reduce friction between the wire harness and other parts, thus protecting the wire harness.

[0040] In some embodiments, the cable chain 11 includes a plurality of rotatably connected links, and the cavities within the plurality of links are connected to form the aforementioned cable routing cavity 112. By utilizing the relative rotation between the links, the bending direction and degree of bending of the cable chain 11 can be changed, which can better protect the internal wire harness, while ensuring that the wire harness is wound and unwound with the cable chain 11.

[0041] like Figure 1 As shown, the slewing bearing assembly 14 includes a bearing 141, an upper bearing cover 142, and a lower bearing cover 143. (Combined) Figure 3 andFigure 6 As shown, the upper bearing cover 142 and the lower bearing cover 143 are fixed relative to each other and together fix the inner ring of the bearing 141, while the outer ring of the bearing 141 is fixed relative to the turntable 12. The aforementioned first and second rotatable parts of the slewing bearing assembly 14 are respectively configured as follows: the first part includes the outer ring of the bearing 141; the second part includes the upper bearing cover 142, the lower bearing cover 143, and the inner ring of the bearing 141. In some embodiments, the bearing 141 is configured as a four-point angular contact ball bearing, in which case rolling elements are also provided between the inner and outer rings of the bearing 141.

[0042] Please refer to the above. Figure 3 , Figure 4 , Figure 5 and Figure 7 As shown, the bearing lower cover 143 includes a connecting body 1433, an upper cover support ring 1432, an outer positioning ring 1434, and a central ring portion 1435. Specifically: the upper cover support ring 1432 is disposed on the upper side of the connecting body 1433 and is used to fix the bearing upper cover 142; the outer positioning ring 1434 is disposed on the outer periphery of the connecting body 1433 and surrounds the outer periphery of the upper cover support ring 1432. The central ring portion 1435 is disposed on the lower side of the connecting body 1433, and a positioning slot 1431 for fixing the inner ring end 151 of the coil spring 15 is provided on the central ring portion 1435. In the assembled state, the bearing upper cover 142 is fixedly connected to the upper end face of the upper cover support ring 1432, and the outer peripheral edge of the bearing upper cover 142 extends radially beyond the upper cover support ring 1432 to form an annular edge, and the inner ring of the bearing 141 is clamped and fixed between this annular edge and the outer positioning ring 1434.

[0043] like Figure 4 and Figure 5 As shown, the bearing lower cover 143 can be configured as an integral structure and the whole is a rotating body. The aforementioned first central through hole 1437 passes through the bearing lower cover 143 along the rotation axis of the rotating body.

[0044] refer to Figure 5 As shown, the positioning slot 1431 passes through the lower end face of the central ring portion 1435 to form a groove, so that the inner ring end 151 of the coil spring 15 can be locked into the positioning slot 1431 from the groove.

[0045] refer to Figure 3 and Figure 7As shown, the automatic wire harness reel 100 also includes a mounting plate 19 fixedly mounted to the bed body 300. The mounting plate 19 has a second central wire guide hole 191 for the wire harness to pass through. This second central wire guide hole 191 can be concentrically arranged with the aforementioned first central wire guide hole 1437. The bearing lower cover 143 also includes an inner positioning ring 1436 extending downward from the central ring portion 1435, which is inserted into the second central wire guide hole 191. Figure 5 As shown, with the inner positioning ring 1436 inserted into the second center wire hole 191, the bearing lower cover 143 and the mounting plate 19 can be connected and fixed by threaded fasteners passing through the lower end face of the center ring portion 1435 and the mounting plate 19.

[0046] Return to reference Figure 1 and Figure 2 As shown, the automatic wire harness reel 100 also includes a tray 13 for supporting the cable chain 11. The tray 13 is arranged in a ring shape and fixedly mounted on the lower side of the turntable 12. The ring-shaped support surface formed by one side of the tray 13 on the outer periphery of the turntable 12 can support the cable chain 11.

[0047] Combination Figure 1 , Figure 3 and Figure 6 As shown, the automatic wire harness reel 100 also includes a coil spring outer stop 16 fixedly disposed on the other side plate of the tray 13. The coil spring outer stop 16 is disposed around the outer periphery of the central ring portion 1435 of the bearing lower cover 143. The coil spring 15 is coiled in the annular space between the central ring portion 1435 and the coil spring outer stop 16, and the outer end 152 of the coil spring 15 is fixed to the tray 13 by a coil spring fixing block 17.

[0048] like Figure 1 As shown, the automatic wire harness reel 100 also includes an outer baffle 18 fixedly mounted to the bed body 300. The outer baffle 18 is provided around the mounting plate 19 and has a notch for the cable chain 11 to pass through from the inside to the outside. In this way, the outer baffle 18 can separate the cable chain 11 from the external space, preventing surrounding objects from entering the winding area of ​​the cable chain 11 and affecting the winding and unwinding of the cable chain 11, thereby affecting the winding and unwinding of the wire harness.

[0049] like Figure 8 and Figure 9 As shown in the illustration, in an embodiment of the operating table of this application, one end of the cable chain 11 is fixedly connected to one end of the bed board 200, and the automatic wire harness reel 100 is fixedly installed on the upper surface of the bed body 300. When the bed board 200 is positioned relative to the bed body 300 along... Figure 8When the hollow arrow marks the direction of translation, the cable chain 11 is pulled and unwound by the moving bed board 200. During this process, the aforementioned coil spring 15 also unwinds and accumulates elastic potential energy; while when the bed board 200 moves as... Figure 9 The shown in the middle, towards and Figure 8 When moving in the opposite direction, the end of the cable chain 11 fixed to the bed board 200 is no longer under tension. At this time, the coil spring 15 releases the accumulated elastic potential energy, causing the aforementioned turntable 12 to rotate to wind up the cable chain 11. In this way, the wire harness laid in the cable chain 11 also completes the winding and unwinding process along with the cable chain 11.

[0050] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Although this application has disclosed preferred embodiments as above, it is not intended to limit this application. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the technical solution of this application. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this application without departing from the content of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. An automatic wire harness reel for mounting on an operating table, the operating table comprising a bed body (300) and a bed board (200) capable of translating relative to the bed body (300), characterized in that, The automatic wire harness reel includes a turntable (12), a slewing bearing assembly (14), and a coil spring (15), wherein: The turntable (12) is configured as a rotating body, and the wire harness passing through the bed body (300) is wound around the outer periphery of the turntable (12). One end of the wire harness is fixed relative to the bed board (200), and the other end is fixed relative to the turntable (12). The slewing bearing assembly (14) includes a first part and a second part that can rotate relative to each other. The turntable (12) is fixed relative to the first part, and the second part is fixed relative to the bed body (300). One end of the coil spring (15) is fixed relative to the first part, and the other end is fixed relative to the second part. The elastic force of the coil spring (15) is used to drive the first part to rotate relative to the second part in the direction of the wire harness around the turntable (12).

2. The automatic wire harness reel as described in claim 1, characterized in that, The automatic wire harness reel also includes a cable chain (11), which is wound around the outer periphery of the turntable (12) and its two ends are respectively fixed to the bed board (200) and the turntable (12). The cable chain (11) is provided with a cable routing cavity (112). The cable bundle that comes out from the bed body (300) passes through the first center cable hole (1437) on the slewing bearing assembly (14), extends outward through the cable routing cavity (112), and is connected to a position that is fixed relative to the bed board (200).

3. The automatic wire harness reel as described in claim 2, characterized in that, The slewing bearing assembly (14) includes a bearing (141), a bearing upper cover (142), and a bearing lower cover (143), wherein: the bearing upper cover (142) and the bearing lower cover (143) are fixed relative to each other and together fix the inner ring of the bearing (141), and the outer ring of the bearing (141) is fixed relative to the turntable (12). The first part includes the outer ring, and the second part includes the bearing upper cover (142), the bearing lower cover (143), and the inner ring.

4. The automatic wire harness reel as described in claim 3, characterized in that, The first central through hole (1437) axially passes through the lower bearing cover (143), the lower bearing cover (143) including a connecting body (1433), an upper cover support ring (1432), an outer positioning ring (1434), and a central ring portion (1435), wherein: The upper cover support ring (1432) is disposed on the upper side of the connecting body (1433) and is used to fix the bearing upper cover (142). The outer positioning ring (1434) is disposed on the outer periphery of the connecting body (1433) and surrounds the upper cover support ring (1432). The central ring (1435) is disposed on the lower side of the connecting body (1433), and the central ring (1435) is provided with a positioning slot (1431) for fixing the inner ring end (151) of the coil spring (15). In the assembled state, the inner ring of the bearing (141) is clamped and fixed between the annular edge of the bearing cover (142) extending radially outward beyond the cover support ring (1432) and the outer positioning ring (1434).

5. The automatic wire harness reel in according to claim 4, characterized in that, The automatic wire harness reel also includes a mounting plate (19) fixedly installed to the bed body (300), and the mounting plate (19) has a second center wire passage hole (191) for the wire harness to pass through. The bearing lower cover (143) also includes an inner positioning ring (1436) extending downward from the central ring portion (1435), the inner positioning ring (1436) being inserted into the second central wire hole (191).

6. The automatic wire harness reel in according to claim 5, characterized in that, The automatic wire harness reel also includes a tray (13), which is arranged in a ring shape and fixedly disposed on the lower end of the turntable (12). One side of the tray (13) forms a ring-shaped support surface on the outer periphery of the turntable (12) for supporting the cable chain (11).

7. The automatic wire harness reel in according to claim 6, characterized in that, The automatic wire harness reel also includes a spring outer stop (16) fixedly disposed on the other side plate of the tray (13). The spring outer stop (16) is disposed around the outer periphery of the central ring (1435). The spring (15) is disposed in the annular space between the central ring (1435) and the spring outer stop (16). The outer end (152) of the spring (15) is fixed to the tray (13) by a spring fixing block (17).

8. The automatic wire harness reel in according to claim 7, characterized in that, The automatic wire harness reel also includes an outer baffle (18) fixedly installed to the bed body (300), the outer baffle (18) being arranged around the mounting plate (19) and having a notch for the drag chain (11) to pass through from the inside to the outside.

9. The automatic wire harness reel as described in claim 2, characterized in that, The drag chain (11) includes multiple rotatably connected links, and the cavities in the multiple links are connected to form the wiring cavity (112), and / or, the side of the turntable (12) is provided with a wire passage (121) for the wire harness to pass through and enter the wiring cavity (112).

10. An operating table, characterized in that, The operating table includes an automatic wire harness reel as described in any one of claims 1-9.

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