Arm supporting device

Abstract

The utility model discloses a limb arm support device, including operating bed, mattress, fixed plate, lifting subassembly, rotating subassembly, upper arm subassembly, raising subassembly and forearm subassembly, the mattress is placed on the operating bed, fixed plate is located on one side of mattress and connected to operating bed, lifting subassembly is located on one side of fixed plate, rotating subassembly is located on the other side of fixed plate. The rotating assembly is located on one side of the lifting assembly and connected to the lifting assembly, the lifting assembly is connected with the fixing plate through the rotating assembly, the upper arm assembly is transversely arranged on one side of the lifting assembly, one end of the upper arm assembly is hinged to the lifting assembly, and the lifting assembly is arranged in the upper arm assembly and connected to the upper arm assembly. The front arm assembly is located at the other end of the upper arm assembly, one end of the front arm assembly is connected to the upper arm assembly, and the height of the front arm assembly and the height of the upper arm assembly can be adjusted up and down through the lifting assembly in the using process so that it can be guaranteed that the arms of a patient can be placed on the front arm assembly and the upper arm assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to an arm support device. Background Art

[0002] Coronary artery intervention surgeries include percutaneous transluminal coronary angioplasty, coronary artery stenting, rotational atherectomy of coronary plaque, laser angioplasty and other techniques. Coronary artery intervention treatment is to perform coronary angiography and balloon dilation stent implantation. The radial artery is the first choice for the surgical approach. During the operation, an arm plate is needed to support the upper limb. When the surgical approach is the left upper limb, the left upper limb of the patient is suspended after the radial artery puncture.

[0003] Chinese Patent Publication No. CN220917698U discloses an arm support device used in coronary artery surgery, which includes a "U"-shaped block with an opening to the right. An installation block is fixed on the left side wall of the block. A fixing member for fixing the block to the hospital bed is installed through the lower end of the block. A armrest for placing the patient's arm is horizontally arranged on the left side of the block. The armrest is in an arc structure. A rotating shaft rotatably matched with the installation block is vertically installed in the installation block. The top of the rotating shaft is fixed to the right bottom of the armrest. A limiting block for preventing the rotating shaft from sliding up and down is sleeved on the rotating shaft. A handrest for placing the patient's hand is horizontally arranged on the left side of the armrest. A fixing block is fixed to the left lower end of the armrest. A fixing rod is horizontally fixed on the left side wall of the fixing block. A sliding sleeve slidably matched with the fixing rod in the left-right direction is sleeved on the fixing rod. The sliding sleeve is fixed to the bottom of the handrest. A tray rotatably matched with the handrest is installed at the left bottom of the handrest.

[0004] However, the above device cannot be stored when the patient needs to transfer to another bed, so it will cause obstruction to the patient when transferring the bed, and the height and angle of its fixing block cannot be adjusted according to the use requirements, so the patient's arm will be suspended. Content of the Utility Model

[0005] The utility model aims to overcome the above-mentioned disadvantages existing in the prior art that it cannot be stored when the patient needs to transfer to another bed, so it will cause obstruction to the patient when transferring the bed, and the height and angle of its fixing block cannot be adjusted according to the use requirements, so the patient's arm will be suspended.

[0006] A limb support device is proposed, which includes an operating table, a mattress, a fixing plate, a lifting component, a rotating component, an upper arm component, a lifting component and an upper arm component. The mattress is placed on the operating table. The fixing plate is located on one side of the mattress and is inserted and connected at the middle position between the mattress and the operating table. The lifting component is located on one side of the fixing plate. The rotating component is located on one side of the lifting component and is connected to the lifting component. The lifting component and the fixing plate are connected through the rotating component. The upper arm component is horizontally arranged on one side of the lifting component, and one end of the upper arm component is hinged to the lifting component. The lifting component is arranged inside the upper arm component and is connected to the upper arm component. The forearm component is located at the other end of the upper arm component, and one end of the forearm component is connected to the upper arm component.

[0007] In the technical solution of the present utility model, when the patient needs to transfer beds, the forearm component and the upper arm component can be folded and stored under the operating table through the rotating component. At this time, the patient can transfer beds, and the forearm component and the upper arm component will not obstruct the patient. At the same time, when the patient is in different positions, the height and angle of the forearm component and the upper arm component can be adjusted through the lifting component to ensure that the patient's arm can be completely placed on the forearm component and the upper arm component, thereby avoiding the patient's arm from hanging in the air, so as to solve the disadvantages mentioned in the technical background that it cannot be stored when the patient needs to transfer beds, so it will obstruct the patient when the patient transfers beds, and the height and angle of its fixed block cannot be adjusted according to the use requirements, so the patient's arm will hang in the air.

[0008] Preferably, in the technical solution of the present utility model, the lifting component includes a guide plate, a sliding seat, a clamping block and a first spring. The rotating component is located on one side of the guide plate and is connected to the guide plate. The guide plate is connected to the fixing plate through the rotating component. The sliding seat is located at the center position of the guide plate and the sliding seat is slidably arranged on the guide plate. Grooves are opened at both ends of the sliding seat. There are two groups of clamping blocks, and the two groups of clamping blocks are respectively slidably arranged in the grooves provided at both ends of the sliding seat. Blind holes are opened on the inner walls of the grooves at both ends of the sliding seat. A first spring is arranged inside each group of blind holes, and both ends of the two groups of first springs are connected to the clamping block and the sliding seat. The lifting component can directly change the height of the forearm component and the upper arm component through the guide plate and the sliding seat to avoid the patient's arm from hanging in the air.

[0009] Preferably, in the technical solution of the present utility model, a plurality of card slots are opened at the center position of the guide plate, and the sliding seat is clamped on the guide plate through the card slots. Therefore, the guide plate can be directly replaced when needed, or the height of the forearm component and the upper arm component can be changed.

[0010] For the optimization of the technical solution of the present utility model, the rotating assembly includes a fixed cylinder, a ratchet tooth, a second spring and a ratchet wheel. The fixed cylinder is horizontally arranged at one end of the guide plate and connected to the guide plate. The ratchet tooth is slidably arranged inside the fixed cylinder. A blind hole is opened at one end of the ratchet tooth. The second spring is horizontally arranged in the blind hole of the ratchet tooth, and both ends of the second spring are respectively connected to the ratchet tooth and the fixed cylinder. The ratchet wheel is located on one side of the fixed cylinder and connected to a through hole preset on the fixed plate, and the ratchet wheel is sleeved on the fixed cylinder. The rotating assembly can fold and store the upper arm assembly and the forearm assembly under the operating bed to avoid obstruction when the patient is transferred to the bed.

[0011] For the optimization of the technical solution of the present utility model, the upper arm assembly includes an upper arm support plate, a first braking screw, an upper arm support block, a rotary damper and a rotating cylinder. One end of the upper arm support plate is hinged to the sliding seat. The lifting assembly is located above the upper arm support plate and connected to the upper arm support plate. The first braking screw is on one side of the sliding seat and threadedly connected to the upper arm support plate. The upper arm support block is connected above the lifting assembly. The rotary damper is located at the other end of the upper arm support plate and connected to the upper arm support plate. The rotating cylinder is vertically arranged above the rotary damper, and the bottom end of the rotating cylinder is connected to the rotary damper. One end of the forearm assembly is hinged to the top end of the rotary damper. The upper arm support plate is hinged to the sliding seat, so the angle between the upper arm support plate and the operating bed can be changed according to the use requirements.

[0012] For the optimization of the technical solution of the present utility model, the lifting assembly includes a first placement box, a second placement box, scissors arms and a locking assembly. The first placement box is connected to the upper arm support plate. The second placement box is located above the first placement box and connected to the upper arm support block. There are two groups of scissors arms arranged inside the first placement box and the second placement box. One ends of the two groups of scissors arms are respectively hinged to the first placement box and the second placement box. The other ends of the two groups of scissors arms are respectively slidably connected to the second placement box and the locking assembly. When in use, the scissors arms can lift the upper arm support block upward until the upper arm support block is at the same height as the forearm support block to avoid the upper arm of the patient from hanging in the air.

[0013] For the optimization of the technical solution of the present utility model, the locking assembly includes a guide block, a moving block, a stop block, a pressure rod, a fixed shell, a sliding shell, a third spring and a fourth spring. There are two groups of guide blocks, both of which are connected inside the first placement box, and the two groups of guide blocks are respectively arranged on one side of the two scissor arms. The moving block is slidably arranged inside the first placement box and is located between the two guide blocks. The fixed shell is located at one end of the moving block and is arranged inside the moving block. The sliding shell is slidably arranged inside the fixed shell. The pressure rod is located on one side of the sliding shell and is connected to the sliding shell. The stop block is slidably arranged inside the sliding shell. The third spring is arranged inside the sliding shell and is located at one end of the stop block. The fourth spring is arranged inside the fixed shell, and the fourth spring is located at one end of the pressure rod. When the upper arm support block needs to move upward, it can be directly lifted, and the locking assembly can directly fix the positions of the upper arm support block and the second placement box, preventing the upper arm support block and the second placement box from suddenly falling.

[0014] For the optimization of the technical solution of the present utility model, the forearm assembly includes a forearm support plate, a second brake screw and a forearm support block. One end of the forearm support plate is hinged to the top of the rotating cylinder. The second brake screw is located at one end of the forearm support plate and is threadedly connected to the forearm support plate. The forearm support block is located above the forearm support plate and is connected to the forearm support plate. The forearm push plate is hinged to the upper arm support plate, so the angle between the upper arm support plate and the forearm support plate can be changed according to the usage requirements.

[0015] The beneficial effects of the present utility model compared with the prior art are as follows:

[0016] When in use, the present utility model can adjust the heights of the forearm assembly and the upper arm assembly up and down through the lifting assembly to ensure that the patient's arm can be placed on the forearm assembly and the upper arm assembly. After use, the lifting assembly, the forearm assembly and the upper arm assembly can be folded and stored under the operating table through the rotating assembly to avoid obstruction when the patient is transferred to another bed. Moreover, the angles between the forearm assembly and the upper arm assembly, and between the upper arm assembly and the operating table can be adjusted to ensure that the forearm assembly and the upper arm assembly can fit the patient's arm more closely and prevent the patient's arm from hanging in the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of a limb support device;

[0018] Figure 2 It is a schematic diagram of the folded state of a limb support device;

[0019] Figure 3 It is a schematic diagram of the opened state of a limb support device;

[0020] Figure 4 It is a connection schematic diagram of the lifting assembly, the upper arm assembly and the forearm assembly of a limb support device;

[0021] Figure 5 Schematic diagram of the internal structure of the sliding seat of the lifting component of a limb support device (the sliding seat is a whole, with a piece removed to show the internal structure).

[0022] Figure 6 Schematic diagram of the structure of the rotating component of a limb support device

[0023] Figure 7 Schematic diagram of the internal structure of the rotating component of a limb support device (the fixed cylinder and the ratchet are a whole, with a piece removed to show the internal structure). <M

[0024] Figure 8 For Figure 7 Enlarged schematic diagram of point A

[0025] Figure 9 Schematic diagram of the internal structure of the lifting component of a limb support device

[0026] Figure 10 Schematic diagram of the structure of the locking component of a limb support device

[0027] Figure 11 Schematic diagram of the internal structure of the locking component of a limb support device (the sliding shell and the fixed shell are a whole, with a piece removed to show the internal structure).

[0028] Figure 12 For Figure 11 Enlarged schematic diagram of point B (the sliding shell and the fixed shell are a whole, with a piece removed to show the internal structure).

[0029] In the figure: 1 - operating table, 2 - mattress, 3 - fixing plate, 4 - lifting component, 41 - guiding plate, 42 - sliding seat, 43 - clamping block, 44 - first spring, 45 - clamping groove, 5 - rotating component, 51 - fixed cylinder, 52 - ratchet teeth, 53 - second spring, 54 - ratchet, 6 - upper arm component, 61 - upper arm support plate, 62 - first braking screw, 63 - upper arm support block, 64 - rotary damper, 65 - rotating cylinder, 7 - lifting component, 71 - first placement box, 72 - second placement box, 73 - scissors arm, 8 - forearm component, 81 - forearm support plate, 82 - second braking screw, 83 - forearm support block, 9 - locking component, 91 - guiding block, 92 - moving block, 93 - stop block, 94 - pressing rod, 95 - fixed shell, 96 - sliding shell, 97 - third spring, 98 - fourth spring.[[ID=XX]] Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be described in detail in conjunction with the accompanying drawings in the embodiments of the present invention. Figures 1-12 of the present invention.

[0031] AsFigures 1-3 As shown in the figure, a limb support device includes an operating table 1, a mattress 2, a fixing plate 3, a lifting assembly 4, a rotating assembly 5, an upper arm assembly 6, a lifting assembly 7 and a forearm assembly 8. The mattress 2 is placed on the operating table 1. The fixing plate 3 is located on one side of the mattress 2 and is inserted and connected at the middle position between the mattress 2 and the operating table 1. After the patient lies on the mattress 2, fixation can be completed. The lifting assembly 4 is located on one side of the fixing plate 3, and the rotating assembly 5 is located on one side of the lifting assembly 4 and is connected to the lifting assembly 4. The lifting assembly 4 is connected to the fixing plate 3 through the rotating assembly 5.

[0032] As Figures 1-3 shown in the figure, after the lifting assembly 4 is used, the lifting assembly 4 can rotate downward with the rotating assembly 5 as the center until the lifting assembly 4 rotates below the operating table 1 to complete storage. The upper arm assembly 6 is horizontally arranged on one side of the lifting assembly 4, and one end of the upper arm assembly 6 is hinged to the lifting assembly 4. Therefore, when the lifting assembly 4 rotates and is stored below the operating table 1, it can drive the upper arm assembly 6 to rotate together. However, one end of the upper arm assembly 6 is hinged to the lifting assembly 4.

[0033] As Figures 1-3 shown in the figure, the upper arm assembly 6 can move up and down on the lifting assembly 4, so as to adjust the height between the upper arm assembly 6 and the ground. Moreover, one end of the upper arm assembly 6 is hinged to the lifting assembly 4. Therefore, the upper arm assembly 6 can rotate with the connection point between the upper arm assembly 6 and the lifting assembly 4 as the center, so as to change the angle between the upper arm assembly 6 and the mattress 2. The lifting assembly 7 is arranged inside the upper arm assembly 6 and is connected to the upper arm assembly 6. The lifting assembly 7 can be used when the upper arm assembly 6 and the forearm assembly 8 are fully opened.

[0034] As Figures 1-3 shown in the figure, the lifting assembly 7 can raise the height of the upper arm support block 63 of the upper arm assembly 6, so as to ensure that the height of the upper arm support block 63 is the same as the height of the forearm support block 83 of the forearm assembly 8. The forearm assembly 8 is located at the other end of the upper arm assembly 6, and one end of the forearm assembly 8 is rotatably connected to the upper arm assembly 6. Therefore, the forearm assembly 8 and the upper arm assembly 6 can be rotated and opened relative to each other, and the forearm assembly 8 can rotate with the connection point between the forearm assembly 8 and the upper arm assembly 6 as the center, so as to change the angle between the forearm assembly 8 and the upper arm assembly 6.

[0035] As Figure 3As shown, the upper arm assembly 6 includes an upper arm support plate 61, a first braking screw 62, an upper arm support block 63, a rotary damper 64, and a rotating cylinder 65. One end of the upper arm support plate 61 is hinged to the sliding seat 42. The elevation assembly 7 is located above the upper arm support plate 61 and is connected to the upper arm support plate 61 by screws. The first braking screw 62 is located on one side of the sliding seat 42, and one end of the first braking screw 62 passes through the sliding seat 42 and is threadedly connected to the upper arm support plate 61.

[0036] As Figure 3 shown, when the first braking screw 62 is rotated forward, the upper arm support plate 61 can rotate up and down. After the upper arm support plate 61 has completed its rotation, the first braking screw 62 can be rotated in the reverse direction to lock the upper arm support plate 61 and the sliding seat 42. The upper arm support block 63 is located above the elevation assembly 7 and is connected to the elevation assembly 7 by screws. Therefore, when needed, the elevation assembly 7 can lift the upper arm support block 63 upward, thereby changing the distance between the upper arm support plate 61 and the upper arm support block 63.

[0037] As Figure 3 shown, the rotary damper 64 is located at the other end of the upper arm support plate 61 and is fixedly connected to the upper arm support plate 61 by screws. The rotating cylinder 65 is vertically arranged above the rotary damper 64, and the bottom end of the rotating cylinder 65 is connected to the rotary damper 64 by screws. Therefore, the rotating cylinder 65 can rotate on the rotary damper 64. Due to the characteristics of the rotary damper 64, after the rotating cylinder 65 has completed its rotation, in the absence of external force, the fixed cylinder 51 will stop rotating and hold its position. One end of the forearm assembly 8 is hinged to the top of the rotary damper 64.

[0038] As Figure 3 shown, the forearm assembly 8 includes a forearm support plate 81, a second braking screw 82, and a forearm support block 83. One end of the forearm support plate 81 is hinged to the top of the rotating cylinder 65. Therefore, the forearm support plate 81 can rotate around the hinge point between the forearm support plate 81 and the rotating cylinder 65, thereby changing the angle between the forearm support plate 81 and the upper arm support plate 61. The second braking screw 82 is located at one end of the forearm support plate 81 and is threadedly connected to the forearm support plate 81. One end of the second braking screw 82 passes through the forearm support plate 81 and contacts the rotating cylinder 65.

[0039] As Figure 3 shown, when the second braking screw 82 is rotated in the reverse direction, the forearm support plate 81 can rotate. After the forearm support plate 81 has completed its rotation, the second braking screw 82 can be rotated forward to lock the rotating cylinder 65 and the forearm support plate 81. The forearm support block 83 is located above the forearm support plate 81 and is connected to the forearm support plate 81 by screws. Therefore, when the forearm support plate 81 rotates, it will drive the forearm support block 83 to rotate together.

[0040] As Figures 3-4As shown, the lifting assembly 4 includes a guide plate 41, a sliding seat 42, a clamping block 43 and a first spring 44. The rotating assembly 5 is located on one side of the guide plate 41 and is fixedly connected to the guide plate 41. The guide plate 41 is rotatably connected to the fixed plate 3 through the rotating assembly 5, so that the guide plate 41 can rotate with the rotating assembly 5 as the center. The sliding seat 42 is located at the center of the guide plate 41. A sliding groove is vertically opened at the center of the guide plate 41. The sliding seat 42 is connected to the inside of the sliding groove in the center of the guide plate 41, and clamping grooves are opened on both sides of the central sliding groove of the guide plate 41.

[0041] like Figures 3-4 As shown, grooves for setting blocks 43 are transversely opened at both ends of the sliding seat 42. There are two groups of blocks 43, and the two groups of blocks 43 are respectively slidably set in the grooves set at both ends of the sliding seat 42. One end of the two groups of blocks 43 is slidably set in the groove, and the other ends of the two groups of blocks 43 pass through the sliding seat 42 and are set on the outside of the sliding seat 42. Blind holes are opened on the inner walls of the grooves at both ends of the sliding seat 42, and a first spring 44 is transversely set inside each group of blind holes. The two groups of first springs 44 are located inside the two groups of blocks 43.

[0042] like Figures 3-4 As shown, both ends of the two groups of first springs 44 are respectively clamped on the block 43 and the sliding seat 42, and one end of the forearm support plate 81 of the forearm assembly 8 is hinged on the sliding seat 42. Therefore, when it is necessary to adjust the height of the forearm assembly 8, it is only necessary to press the two groups of blocks 43 inward until the blocks 43 are disengaged from the inside of the slot. At this time, the sliding seat 42 can drive the forearm assembly 8 to move up and down. When pressing the blocks 43, the two groups of first springs 44 will be squeezed by the blocks 43 to deform and start to accumulate force. After moving to the desired position, release the blocks 43, and the blocks 43 can bounce back to the inside of the slot under the action of the first springs 44, thereby clamping the sliding seat 42.

[0043] like Figures 6-8 As shown, the rotating assembly 5 includes a fixed cylinder 51, a ratchet 52, a second spring 53 and a ratchet 54. The fixed cylinder 51 is horizontally arranged at one end of the guide plate 41 and welded to the guide plate 41. Therefore, the guide plate 41 can be rotatably connected to the fixed plate 3 through the fixed cylinder 51. When the guide plate 41 rotates, it will drive the fixed cylinder 51 to rotate synchronously. The ratchet 52 is slidably arranged inside the fixed cylinder 51. A slot is provided at the top of the fixed cylinder 51. The top of the ratchet 52 passes through the slot at the top of the fixed cylinder 51 and is arranged on the outside of the fixed cylinder 51.

[0044] like Figures 6-8As shown in the figure, when the fixed cylinder 51 rotates, it will drive the ratchet tooth 52 to rotate together. One end of the ratchet tooth 52 is provided with a blind hole. The second spring 53 is horizontally arranged in the blind hole of the ratchet tooth 52, and both ends of the second spring 53 are respectively clamped on the ratchet tooth 52 and the fixed cylinder 51. The ratchet wheel 54 is located on one side of the fixed cylinder 51 and is welded in the through hole preset on the fixed plate 3, and the ratchet wheel 54 is sleeved on the fixed cylinder 51. Therefore, when the ratchet tooth 52 is pressed inward, the guide plate 41 can drive the fixed cylinder 51 and the ratchet tooth 52 to rotate. When the guide plate 41 and the fixed cylinder 51 are released after the operation, the second spring 53 can use the force accumulated when pressing the ratchet tooth 52 to bounce the ratchet tooth 52 back into the interior of the ratchet tooth 52, thereby locking the positions of the guide plate 41 and the fixed cylinder 51.

[0045] As Figures 9-12 shown, the lifting assembly 7 includes a first placement box 71, a second placement box 72, scissors arms 73 and a locking assembly 9. The first placement box 71 is connected to the upper arm support plate 61 by screws. The second placement box 72 is located above the first placement box 71 and is connected to the upper arm support block 63 by screws. There are two groups of scissors arms 73 which are both arranged inside the first placement box 71 and the second placement box 72, and the two groups of scissors arms 73 are mirror - image arranged on both sides of the first placement box 71 and the second placement box 72. One end of each of the two groups of scissors arms 73 is hinged to the first placement box 71 and the second placement box 72.

[0046] As Figures 9-12 shown, the other ends of the two groups of scissors arms 73 are respectively slidably connected to the second placement box 72 and the locking assembly 9. Therefore, when it is necessary to raise the height of the upper arm support block 63, the upper arm support block 63 can be directly lifted upward. At this time, the scissors arms 73 will gradually open. After moving the upper arm support block 63 to the specified height, the locking assembly 9 will fix the position of the scissors arms 73. At this time, the scissors arms 73 will support the upper arm support block 63 and the second placement box 72. After use, the scissors arms 73 can be released through the locking assembly 9.

[0047] As Figures 9-12 shown, during the process of the upper arm support block 63 moving downward, the scissors arms 73 will gradually close. Until the first placement box 71 and the second placement box 72 are in full contact, the scissors arms 73 will also be fully closed. At this time, the two groups of scissors arms 73 will be received inside the first placement box 71 and the second placement box 72.

[0048] As Figures 9-12As shown, the locking assembly 9 includes a guide block 91, a moving block 92, a stop block 93, a pressure rod 94, a fixed housing 95, a sliding housing 96, a third spring 97 and a fourth spring 98. There are two sets of guide blocks 91, both of which are connected to the inside of the first placement box 71 by screws, and the two sets of guide blocks 91 are respectively arranged inside the two sets of scissors arms 73. Guide grooves are provided inside the two sets of guide blocks 91. The moving block 92 is slidably arranged inside the first placement box 71 and is located between the two sets of guide blocks 91. The fixed housing 95 is located at one end of the moving block 92 and is bonded to a groove preset inside the moving block 92.

[0049] As Figures 9-12 As shown, the sliding housing 96 is slidably arranged inside the fixed housing 95. The pressure rod 94 is located on one side of the sliding housing 96, and one end of the pressure rod 94 is bonded to the sliding housing 96. The other end of the pressure rod 94 passes through a set of guide blocks 91, the scissors arm 73 and the first placement box 71, and is arranged outside the first placement box 71. The lower end of the scissors arm 73 on one side of the pressure rod 94 is hinged to the pressure rod 94, and its top end is slidably connected to the second guide housing. For the scissors arm 73 on the other side of the moving block 92, its bottom end is hinged to a handover shaft preset on the moving block 92, and its top end is slidably connected to the second guide box.

[0050] As Figures 9-12 As shown, the stop block 93 is snap - connected to the inside of the sliding housing 96 and is slidably arranged on the bottom plate inside the sliding housing 96. A blind hole is provided at one end of the stop block 93. The third spring 97 is located inside the sliding housing 96 and is arranged inside the blind hole of the stop block 93, and both ends of the third spring 97 are respectively snap - connected to the sliding housing 96 and the stop block 93. The fourth spring 98 is arranged inside the fixed housing 95. A blind hole is provided at one end of the pressure rod 94. The fourth spring 98 is located inside the fixed housing 95 and is arranged inside the blind hole of the pressure rod 94, and both ends of the fourth spring 98 are respectively snap - connected to the pressure rod 94 and the fixed housing 95.

[0051] As Figures 9-12 As shown, an inclined surface is provided at the end of the stop block 93, and an inclined surface is provided at the position where the guide block 91 contacts the stop block 93. Therefore, when the second placement box 72 is lifted upward and the moving block 92 slides forward, under the action of the inclined surfaces of the guide block 91 and the stop block 93 itself, the stop block 93 will successively slide into the inside of the sliding housing 96. When the stop block 93 slides, it will compress the third spring 97. When the second placement box 72 stops moving upward, the stop block 93 will bounce back into the inclined surface inside the stop block 93 under the action of the third spring 97, thereby clamping the moving block 92 and the scissors arm 73.

[0052] As Figures 9-12As shown, when it is necessary to move the second placement box 72 downward, only need to press the pressure lever 94 inward. When pressing the pressure lever 94, the fourth spring 98 will deform and store energy. When the pressure lever 94 moves inward, it will drive the movable block and the stopper 93 to move synchronously into the interior of the fixed shell 95 until the stopper 93 moves out of the inclined surface of the guide block 91. At this time, the upper arm support block 63 can be pressed downward. During the downward movement of the upper arm support block 63, the movable block 92 will move to the original position under the action of the scissors arm 73. Then release the pressure lever 94, and the pressure lever 94 can move to the original position under the action of the fourth spring 98. At this time, the stopper 93 will also re-engage into the interior of the guide block 91.

[0053] The movement process of this embodiment: After inserting the fixed plate 3 under the mattress 2, press the ratchet 52 inward, and then rotate the guide plate 41, the forearm assembly 8 and the upper arm assembly 6 downward until the guide plate 41 is vertical, then release the ratchet 52. Then rotate the first brake screw 62 in the reverse direction, and then rotate the upper arm assembly 6 and the forearm assembly 8 upward. After the upper arm assembly 6 rotates to the required position, rotate the first brake screw 62 in the forward direction, and then fully open the forearm assembly 8 outward. After opening, rotate the second brake screw 82 in the reverse direction, and then rotate the forearm assembly 8 upward as needed to adjust the angle between the forearm assembly 8 and the upper arm assembly 6. After the forearm assembly 8 rotates, rotate the second brake screw 82 in the forward direction, then lift the forearm support block 83 upward until the bottom ends of the upper arm support block 63 and the forearm support block 83 are at the same height, then stop. Then, press the block 43 as needed and adjust the heights of the forearm assembly 8 and the upper arm assembly 6 up and down.

[0054] The above embodiments are only used to illustrate the technical idea of the present invention, and the protection scope of the present invention cannot be limited by this. Any modification made on the basis of the technical solution according to the technical idea proposed by the present invention falls within the protection scope of the present invention.

Claims

1. An arm support device, characterized in that: It includes an operating table (1), a mattress (2), a fixing plate (3), a lifting assembly (4), a rotating assembly (5), an upper arm assembly (6), a lifting assembly (7) and a forearm assembly (8). The mattress (2) is placed on the operating table (1). The fixing plate (3) is located on one side of the mattress (2) and is inserted and connected at the middle position between the mattress (2) and the operating table (1). The lifting assembly (4) is located on one side of the fixing plate (3). The rotating assembly (5) is located on one side of the lifting assembly (4) and is connected to the lifting assembly (4). The lifting assembly (4) is connected to the fixing plate (3) through the rotating assembly (5). The upper arm assembly (6) is horizontally arranged on one side of the lifting assembly (4), and one end of the upper arm assembly (6) is hinged to the lifting assembly (4). The lifting assembly (7) is arranged inside the upper arm assembly (6) and is connected to the upper arm assembly (6). The forearm assembly (8) is located at the other end of the upper arm assembly (6), and one end of the forearm assembly (8) is connected to the upper arm assembly (6).

2. The limb support device according to claim 1, wherein: The lifting assembly (4) includes a guide plate (41), a sliding seat (42), a clamping block (43) and a first spring (44). The rotating assembly (5) is located on one side of the guide plate (41) and is connected to the guide plate (41). The guide plate (41) is connected to the fixing plate (3) through the rotating assembly (5). The sliding seat (42) is located at the center of the guide plate (41) and the sliding seat (42) is slidably arranged on the guide plate (41). Grooves are provided at both ends of the sliding seat (42). There are two groups of clamping blocks (43), and the two groups of clamping blocks (43) are respectively slidably arranged in the grooves provided at both ends of the sliding seat (42). Blind holes are provided on the inner walls of the grooves at both ends of the sliding seat (42). A first spring (44) is arranged inside each group of blind holes, and both ends of the two groups of first springs (44) are connected to the clamping block (43) and the sliding seat (42).

3. The limb support device according to claim 2, characterized in that: Multiple groups of card slots (45) are provided at the center of the guide plate (41).

4. The limb support device according to claim 2, wherein: The rotating assembly (5) includes a fixed cylinder (51), a ratchet tooth (52), a second spring (53) and a ratchet wheel (54). The fixed cylinder (51) is horizontally arranged at one end of the guide plate (41) and is connected to the guide plate (41). The ratchet tooth (52) is slidably arranged inside the fixed cylinder (51). A blind hole is provided at one end of the ratchet tooth (52). The second spring (53) is horizontally arranged in the blind hole of the ratchet tooth (52), and both ends of the second spring (53) are respectively connected to the ratchet tooth (52) and the fixed cylinder (51). The ratchet wheel (54) is located on one side of the fixed cylinder (51) and is connected to a through hole preset on the fixing plate (3), and the ratchet wheel (54) is sleeved on the fixed cylinder (51).

5. The limb support device according to claim 1, characterized in that: The upper arm assembly (6) includes an upper arm support plate (61), a first braking screw (62), an upper arm support block (63), a rotary damper (64), and a rotating cylinder (65). One end of the upper arm support plate (61) is hinged to the sliding seat (42). The lifting assembly (7) is located above the upper arm support plate (61) and is connected to the upper arm support plate (61). The first braking screw (62) is located on one side of the sliding seat (42) and is threadedly connected to the upper arm support plate (61). The upper arm support block (63) is connected above the lifting assembly (7). The rotary damper (64) is located at the other end of the upper arm support plate (61) and is connected to the upper arm support plate (61). The rotating cylinder (65) is vertically arranged above the rotary damper (64), and the bottom end of the rotating cylinder (65) is connected to the rotary damper (64). One end of the forearm assembly (8) is hinged to the top end of the rotary damper (64).

6. The limb support device according to claim 5, characterized in that: The lifting assembly (7) includes a first placement box (71), a second placement box (72), a scissor arm (73), and a locking assembly (9). The first placement box (71) is connected to the upper arm support plate (61). The second placement box (72) is located above the first placement box (71) and is connected to the upper arm support block (63). There are two groups of scissor arms (73) both arranged inside the first placement box (71) and the second placement box (72). One ends of the two groups of scissor arms (73) are respectively hinged to the first placement box (71) and the second placement box (72). The other ends of the two groups of scissor arms (73) are respectively slidably connected to the second placement box (72) and the locking assembly (9).

7. The limb support device according to claim 6, characterized in that: The locking assembly (9) includes a guide block (91), a moving block (92), a stop block (93), a pressure rod (94), a fixed shell (95), a sliding shell (96), a third spring (97), and a fourth spring (98). There are two groups of guide blocks (91) both connected inside the first placement box (71), and the two groups of guide blocks (91) are respectively arranged on one side of the two groups of scissor arms (73). The moving block (92) is slidably arranged inside the first placement box (71) and is located between the two groups of guide blocks (91). The fixed shell (95) is located at one end of the moving block (92) and is arranged inside the moving block (92). The sliding shell (96) is slidably arranged inside the fixed shell (95). The pressure rod (94) is located on one side of the sliding shell (96) and is connected to the sliding shell (96). The stop block (93) is slidably arranged inside the sliding shell (96). The third spring (97) is arranged inside the sliding shell (96) and is located at one end of the stop block (93). The fourth spring (98) is arranged inside the fixed shell (95), and the fourth spring (98) is located at one end of the pressure rod.

8. An arm support device according to claim 5, characterized in that: The forearm assembly (8) includes a forearm support plate (81), a second braking screw (82), and a forearm support block (83). One end of the forearm support plate (81) is hinged to the top end of the rotating cylinder (65). The second braking screw (82) is located at one end of the forearm support plate (81) and is threadedly connected to the forearm support plate (81). The forearm support block (83) is located above the forearm support plate (81) and is connected to the forearm support plate (81).

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