Arm armrest and operating bed thereof

Abstract

The utility model discloses an arm armrest and an operating bed thereof, and belongs to the field of medical instruments. The operating bed comprises a bed board, a control device, a base and the arm handrails, the base and the control device are fixedly installed on the bottom face of the bed board, and the arm handrails are rotationally installed on the two sides of the control device. A first rotating device, a bearing rotating device and a second rotating device in the control device are connected in a meshed mode, the bearing rotating device is installed between the first rotating device and the second rotating device, and the first rotating device and the second rotating device are connected with a first rack and a second rack in a meshed mode respectively. The first rack and the second rack are connected with the main supporting plates on the two sides of the control device through a first movable plate and a second movable plate respectively. The arm handrails on the two sides can be opened and retracted at the same time through meshing of the gears in the control device, operation is easy and fast, and the operation time of a user is saved.

Description

Technical Field

[0001] The utility model relates to the field of medical equipment, and more specifically, to an armrest and an operating table thereof. Background Art

[0002] For example, the specification of CN201822211644.1 published on August 27, 2019 introduces such an operating bed hand block and a comprehensive operating bed. The operating bed hand block of the patent includes a hand block and a connecting assembly, and the connecting assembly includes a first connecting assembly and a second connecting assembly; one end of the first connecting assembly is detachably connected to the operating bed, and the other end is rotatably connected to one end of the second connecting assembly; one end of the second connecting assembly is provided with a fixed gear, and the other end is fixedly connected to one end of the hand block through the fixed gear; the bottom of the hand block is also provided with a rotating rod meshing with the fixed gear, and the rotating rod drives the hand block to rotate around the fixed gear. However, when installing the hand block, the surgeon needs to squat so that the height of the body is lower than the height of the operating bed, and then buckle the first connecting assembly of the hand block under the bed board of the operating bed, which increases the working steps of the surgeon; and the hand block can only be operated in one direction during the opening and retracting process, which takes up time during the operation and is easy to affect the progress of the operation.

[0003] Therefore, it is necessary to design such an armrest and operating table which are easy to open and retract and can be carried out quickly. Utility Model Content

[0004] 1. Problem to be solved

[0005] In view of the problems existing in the prior art, the first purpose of the utility model is to provide an armrest, which can drive the rotation of the armrest on one side by flipping the armrest on the other side, so that the armrests on both sides can be opened at the same time, and the operation is simple and can be carried out quickly. The second purpose is to provide an operating bed containing the above-mentioned armrest.

[0006] 2. Technical solution

[0007] To solve the above problems, the utility model adopts the following technical solutions.

[0008] An armrest, comprising a control device fixed on a bed board and a pair of armrests, the armrest comprising a movable support plate, a gasket and a main support plate, wherein the main support plate is rotatably mounted on the bottom surface of the bed board, a main rotating shaft is fixedly mounted on one side of the main support plate, the gasket and the movable support plate are sleeved on the main rotating shaft, and the gasket is located between the main support plate and the main rotating shaft; the control device comprises a first rotating device, a first movable plate, a first rack, a bearing device, a pull ring, a second rack, a second movable plate, a second rotating device, and an outer shell, the inner bottom surface of the outer shell is provided with a first rack and a first gear. The two racks slide in the internal sliding groove, the first movable plate is rotatably connected to the first rack, the rack teeth of the first rack on the side facing the rear wall of the shell are meshed and connected with the lower end of the first rotating device, the upper end of the supporting device is meshed and connected between the upper ends of the first rotating device and the second rotating device, the lower end of the supporting device is fixedly connected with a pull ring, the lower end of the second rotating device is meshed and connected with the second rack, the end of the second rack away from the control device is rotatably connected to the second movable plate, and the ends of the first movable plate and the second movable plate opposite to each other are rotatably connected to a pair of main support plate side walls respectively.

[0009] Furthermore, the second rotating device includes a second upper gear, a second rotating shaft and a second lower gear fixedly connected in sequence from top to bottom, and one end of the second upper gear close to the inner top surface of the outer shell is sleeved on the fixed rod inside the outer shell; the first rotating device includes a first upper gear, a first rotating shaft and a first lower gear fixedly connected in sequence from top to bottom, and one end of the first upper gear close to the inner top surface of the outer shell is also sleeved on another fixed rod inside the outer shell.

[0010] Furthermore, the rotating device includes a rotating gear and a connecting shaft. The rotating gear is sleeved on one end of the connecting shaft close to the inner top surface of the shell. A square protrusion is fixed on the connecting shaft to match the sliding groove on the inner wall of the shell to limit the connecting shaft to only vertical movement.

[0011] Furthermore, the square protrusion can only move on the upper side of the first rack and the second rack.

[0012] An operating table suitable for the above-mentioned armrest comprises a bed plate, a hand-pull switch and a base, wherein the bed plate is fixed on the top of the base, and the hand-pull switch is slidably mounted on the bottom of the bed plate.

[0013] 3. Beneficial effects

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] 1. The two armrests of the utility model are rotatably mounted on the bottom surface of the bed board through hinges, so that the armrests can rotate around the hinges until they are flush with the top surface of the bed board, and the operation is simple. A control device is fixedly mounted between the two armrests, and the armrests on both sides can be opened at the same time through the control device, saving the time of opening the armrests, and the control device is fixed on the bottom surface of the bed board to prevent the control device from falling off the bed board during use.

[0016] 2. A gasket is installed between the movable support plate and the main support plate of the armrest of the utility model, which increases the force that needs to be overcome for the main shaft to rotate, so that the positioning angle of the armrest is not easy to change after opening, thereby reducing the impact on the operation caused by the change of the angle of the movable support plate.

[0017] 3. A pull ring is fixed to the end of the rotating device of the utility model away from the control device, and the position of the rotating device can be changed in the vertical direction by changing the position of the pull ring to realize the opening of the single-side armrest. A square protrusion is arranged at the end of the rotating device close to the pull ring, and the square protrusion can only move up and down in the matching slide groove on the inner wall of the shell, and will not contact the first rack and the second rack, so that it is not easy to affect the movement of the first rack and the second rack during its movement in the vertical direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model in an unused state;

[0019] Figure 2 It is a schematic diagram of the internal structure of the control device of the utility model;

[0020] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of part A;

[0021] Figure 4 This is a schematic diagram of the structure of the armrest of the utility model from an unused state to an opened state;

[0022] Figure 5 This is a structural schematic diagram of the practical male buckle and the push-pull switch from an unfastened state to a fastened state.

[0023] Description of the numbers in the figure:

[0024] 1 bed board, 11 hand-pull switch, 2 movable support plate, 3 gasket, 4 main support plate, 41 male buckle, 5 control device, 51 first rotating device, 511 first upper gear, 512 first rotating shaft, 513 first lower gear, 52 first movable plate, 53 first rack, 54 bearing device, 541 bearing gear, 542 connecting shaft, 55 pull ring, 56 second rack, 57 second movable plate, 58 second rotating device, 581 second upper gear, 582 second rotating shaft, 583 second lower gear, 59 housing, 6 main rotating shaft, 7 base. DETAILED DESCRIPTION

[0025] Example bed board 1:

[0026] See also Figure 1-5 A surgical bed includes a bed board 1, a control device 5, a base 7 and a pair of armrests. The bed board 1 and the base 7 are fixedly connected, the control device 5 is fixed on the bottom surface of the bed board 1, and two armrests are rotatably mounted on the bottom surface of the bed board 1 and on both sides of the base 7, and the positions of the two armrests are symmetrical about the control device 5.

[0027] like Figure 1 As shown, the armrest includes a movable support plate 2, a gasket 3, a main support plate 4, and a main shaft 6. The main support plate 4 is mounted on the bed board 1 through a hinge, so that the main support plate 4 can rotate around the hinge; and the hinge is mounted on the side of the main support plate 4 away from the control device 5, the main shaft 6 is fixed on the side of the main support plate 4 away from the control device 5, and a raised male buckle 41 is fixedly connected to the side of the main support plate 4 close to the bed board 1; the gasket 3 and the movable support plate 2 are sleeved on the main shaft 6, so that the movable support plate 2 can rotate around the main shaft 6, and the gasket 3 is installed between the main shaft 6 and the movable support plate 2, which increases the force required to rotate the main shaft 6, so that the movable support plate 2 is not easy to rotate around the main shaft 6, and the influence of the angle change of the main shaft 6 on the operation is reduced.

[0028] like Figure 5 As shown, the bottom surface of the bed board 1 is provided with a space corresponding to the position of the male buckle 41 and into which the male buckle 41 can be inserted, and a hand-pull switch 11 is slidably installed in the space toward the front end of the bed board 1. After the main support plate 4 is flipped around the hinge, the hand-pull switch 11 can be moved and buckled into the groove of the male buckle 41, thereby fixing the armrest to the bottom end of the bed board 1, making it difficult for it to rotate in the direction away from the bed board 1 due to gravity.

[0029] like Figure 2-3As shown, the control device 5 includes a first rotating device 51, a first movable plate 52, a first rack 53, a bearing device 54, a second rack 56, a second movable plate 57, a second rotating device 58, and a shell 59. The outer top surface of the shell 59 is fixed on the bed board 1 to prevent the shell 59 from moving during use, thereby affecting the use of the control device 5; a slide groove is provided on the inner bottom surface of the shell 59, and the first rack 53 and the second rack 56 are slidably placed in the slide groove. Through holes matching the first rack 53 and the second rack 56 are provided on both sides of the shell 59, so that the first rack 53 and the second rack 56 are not easy to deflect during the movement in the through holes, and the first rack 53 and the second rack 56 are located in the same horizontal plane. The first movable plate 52 is rotatably connected to the end of the first rack 53 away from the control device 5, and the other end of the first movable plate 52 is rotatably connected to the side of the main support plate 4 facing the control device 5, so that it can follow the rotation of the main support plate 4 and move accordingly in the horizontal direction. A second movable plate 57 is also rotatably connected to the end of the second rack 56 away from the control device 5, and the other end of the second movable plate 57 is also rotatably connected to another main support plate 4, so that the second rack 56 can also follow the rotation of the main support plate 4 rotatably connected to the other end of the second movable plate 57 and perform corresponding movement in the horizontal direction.

[0030] The first rack 53 is provided with rack teeth on one side facing the second rack 56, and the rack teeth of the first rack 53 are meshedly connected with the first rotating device 51, so that the first rotating device 51 can rotate with the horizontal movement of the first rack 53; the first rotating device 51 includes a first upper gear 511, a first rotating shaft 512 and a first lower gear 513, and the first upper gear 511, the first rotating shaft 512 and the first lower gear 513 are fixedly connected together from top to bottom; one end of the first upper gear 511 away from the first lower gear 513 is sleeved on the fixing rod, and the other end of the fixing rod is fixed to the inner top surface of the shell 59, so that the first upper gear 511, the first rotating shaft 512 and the first lower gear 513 are fixedly connected together from top to bottom; The position of a rotating device 51 is not easily shifted during movement; similarly, the second rotating device 58 includes a second upper gear 581, a second rotating shaft 582 and a second lower gear 583, wherein the second upper gear 581, the second rotating shaft 582 and the second lower gear 583 are fixedly connected together from top to bottom; the second lower gear 583 is meshedly connected with the second rack 56, and the top end of the second upper gear 581 is also sleeved on another fixed rod fixed on the top surface of the outer shell 59, so that the second rotating device 58 is not easily shifted, thereby reducing the impact of the position shift of the second rotating device 58 on the control device 5.

[0031] The rotating device 54 includes a rotating gear 541 and a connecting shaft 542; the rotating gear 541 is sleeved on the top of the connecting shaft 542; the second upper gear 581 and the first upper gear 511 are both meshed with the rotating gear 541. A square protrusion is fixed to one end of the connecting shaft 542 close to the first rack 53, and the square protrusion can move vertically in a slideway matched with the inner wall of the housing 59, and the square protrusion moves on the upper side of the first rack 53 or the second rack 57, so that the rotating device 54 is not easy to affect the movement of the first rack 51 and the second rack 56 when moving in the vertical direction. A pull ring 55 is fixed to the bottom end of the rotating device 54. During use, the rotating device 54 can be driven to move by pulling or pushing the pull ring 55 in the vertical direction.

[0032] like Figure 4 As shown, (a) is the state of the armrest when it is not in use, (b) is the state of the armrest after it is turned around the hinge, and (c) is the state of the armrest when it is fully unfolded. When in use, the user can rotate the armrest around the hinge until the movable support plate 2 is flush with the top surface of the bed board 1. In the process of rotating the armrest on one side, the armrest on the other side is opened at the same time under the action of the control device 5 to reach state (b). Then, the user can rotate the movable support plate 2 around the main shaft 6 according to the different requirements of the operation for the angle between the armrest and the bed board 1, which is simple and quick to operate. When the armrest needs to be retracted, first restore the armrest to state (b), then pull the square protrusion of the hand-pull switch 11 to make the male buckle 41 lose the buckle with the hand-pull switch 11, and then rotate the armrest on either side in the direction close to the control device 5 to the position in state (a); the armrest on the other side will be automatically retracted under the action of the control device 5, reducing the time consumption of the operator when rotating the armrest during the operation.

[0033] When the user only needs to rotate one side of the armrest, he can pull the pull ring 55 in the vertical direction away from the control device 5 until he feels that the pull ring 55 can no longer be pulled. At this time, the rotation device 54 loses the meshing with the first rotation device 51 and the second rotation device 58. When both need to be used at the same time, the pull ring 55 is pushed in the vertical direction toward the control device 5 until it is difficult to push further; at this time, the rotation gear 541 is meshed with the first upper gear 511 and the second upper gear 581 again, and the armrests on both sides can be opened at the same time.

[0034] The utility model can realize the operation of opening and retracting the armrests on both sides at the same time, the operation is simple, and the use time of the armrests during the operation is saved.

Claims

1. An armrest, characterized in that: The invention comprises a control device (5) fixed on a bed board (1) and a pair of armrests, wherein the armrests comprise a movable support plate (2), a gasket (3) and a main support plate (4), wherein the main support plate (4) is rotatably mounted on the bottom surface of the bed board (1), a main rotating shaft (6) is fixedly mounted on one side of the main support plate (4), the gasket (3) and the movable support plate (2) are sleeved on the main rotating shaft (6), and the gasket (3) is located between the main support plate (4) and the main rotating shaft (6); The control device (5) comprises a first rotating device (51), a first movable plate (52), a first rack (53), a bearing device (54), a pull ring (55), a second rack (56), a second movable plate (57), a second rotating device (58), and a housing (59). The inner bottom surface of the housing (59) is provided with a slide groove for the first rack (53) and the second rack (56) to slide inside. The first movable plate (52) is rotatably connected to the first rack (53). The rack teeth on the side of the first rack (53) facing the rear wall of the housing (59) are connected to the second rotating device (58). The lower end of a rotating device (51) is meshedly connected, the upper end of a rotation bearing device (54) is meshedly connected between the upper ends of the first rotating device (51) and the second rotating device (58), the lower end of the rotation bearing device (54) is fixedly connected with a pull ring (55), the lower end of the second rotating device (58) is meshedly connected with a second rack (56), the end of the second rack (56) away from the control device (5) is rotatably connected with a second movable plate (57), and the ends of the first movable plate (52) and the second movable plate (57) facing away from each other are rotatably connected with the side walls of a pair of main support plates (4).

2. The armrest according to claim 1, characterized in that: The second rotating device (58) comprises a second upper gear (581), a second rotating shaft (582) and a second lower gear (583) which are fixedly connected in sequence from top to bottom, and one end of the second upper gear (581) close to the inner top surface of the housing (59) is sleeved on a fixed rod inside the housing (59); The first rotating device (51) comprises a first upper gear (511), a first rotating shaft (512) and a first lower gear (513) which are fixedly connected in sequence from top to bottom, and one end of the first upper gear (511) close to the inner top surface of the outer shell (59) is also sleeved on another fixed rod inside the outer shell (59).

3. The armrest according to claim 1, characterized in that: The rotation bearing device (54) comprises a rotation bearing gear (541) and a connecting shaft (542). The rotation bearing gear (541) is sleeved on one end of the connecting shaft (542) close to the inner top surface of the housing (59). A square protrusion is fixed on the connecting shaft (542) to match the slideway on the inner wall of the housing (59) to limit the connecting shaft (542) to only be able to move vertically.

4. The armrest according to claim 3, characterized in that: The square protrusion can only move on the upper side of the first rack (53) and the second rack (56).

5. An operating table suitable for the armrest according to any one of claims 1 to 4, characterized in that: The invention comprises a bed board (1), a pair of hand-pull switches (11) and a base (7), wherein the bed board (1) is fixed to the top of the base (7), the pair of hand-pull switches (11) are slidably mounted on both sides of the bottom surface of the bed board (1), and a protruding male buckle (41) is fixed to a side surface of the main support plate (4) close to the main rotating shaft (6), and the male buckle (41) and the hand-pull switch (11) can be buckled.

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