Medical tower crane

Abstract

The utility model provides a medical tower crane. The medical tower crane comprises a mounting frame, a motor, a transmission mechanism, a lead screw assembly and an adjusting arm, a mounting plate is arranged on the mounting frame, a first assembling opening and a second assembling opening which are spaced are formed in the mounting plate, the motor is fixed to the bottom side of the mounting plate, the output end of the motor penetrates through the first assembling opening to be connected with the transmission mechanism, and one end of the lead screw assembly penetrates through the second assembling opening upwards from the bottom side of the mounting plate and is connected with the transmission mechanism. The adjusting arm is arranged at the other end of the lead screw assembly in a sleeving mode, and the adjusting arm is rotationally matched with the lead screw assembly. According to the medical tower crane, the transmission mechanism and the lead screw assembly are arranged, through the cooperation of the motor, the transmission mechanism and the lead screw assembly, the position of the adjusting arm can be adjusted in the height direction, and compared with a tower crane with a cantilever only capable of moving in the horizontal direction, the tower crane is more flexible to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and particularly relates to a medical suspension tower. Background Art

[0002] Suspension towers are widely used in the medical field. The most commonly used ones are those that rely on rotating shafts and bearings to rotate, collectively referred to as "mechanical towers". For such suspension towers, the cantilever can only move horizontally and it is difficult to achieve vertical movement. When someone needs to pass under the suspension tower, the suspension tower needs to be rotated to move it out of the way. In addition, during use, there may be some obstacles that are difficult to move, resulting in difficulty in moving the suspension tower out of the way. Both pedestrians and equipment need to be careful to avoid when passing under the suspension tower, making it inconvenient to use. Content of the Utility Model

[0003] The technical objective of the utility model is to provide a medical suspension tower, aiming to solve the problem of inflexible adjustment of the position of the cantilever of the suspension tower in the related art.

[0004] To solve the above technical problem, the utility model is implemented as follows. A medical suspension tower is provided, which includes: a mounting frame, a motor, a transmission mechanism, a lead screw assembly, and an adjustment arm; a mounting plate is provided on the mounting frame, and a spaced first assembly port and a second assembly port are opened on the mounting plate. The motor is fixed to the bottom side of the mounting plate, and the output end of the motor passes through the first assembly port and is connected to the transmission mechanism. One end of the lead screw assembly passes upward through the second assembly port from the bottom side of the mounting plate and is connected to the transmission mechanism. The adjustment arm is sleeved on the other end of the lead screw assembly, and the adjustment arm is rotationally matched with the lead screw assembly.

[0005] Further, the transmission mechanism is a sprocket assembly. The sprocket assembly includes a driving sprocket, a driven sprocket, and a chain. The driving sprocket is connected to the output end, the driven sprocket is connected to the top end of the lead screw, and the inner side of the chain is respectively connected to the outer periphery of the driving sprocket and the outer periphery of the driven sprocket.

[0006] Further, the transmission mechanism is a gear assembly. The gear assembly includes a driving sprocket connected to the output end and a driven sprocket meshing with the driving sprocket. The lead screw assembly is connected to the driven sprocket.

[0007] Further, the lead screw assembly includes a lead screw and a bearing sleeved on the outer periphery of the lead screw. The bearing is fixed on the second assembly port. The transmission mechanism is provided with an assembly hole, and the top end of the lead screw enters the assembly hole and is fixed to the assembly hole.

[0008] Further, the lead screw assembly further includes a fixing member. Grooves adapted to the fixing member are respectively opened on the outer periphery of the lead screw and the wall surface of the assembly hole. Part of the fixing member is embedded in the groove of the lead screw, and the other part is embedded in the groove at the assembly hole.

[0009] Further, a limiting edge is connected inside the second assembly opening; the bearing includes a first bearing and a second bearing that are arranged inside the second assembly opening and respectively installed at both ends of the limiting edge.

[0010] Further, the adjusting arm includes a main body arm and a connecting block movably connected to the main body arm, and the connecting block is connected to the lead screw through a first nut.

[0011] Further, the adjusting arm further includes a positioning shaft and an adjusting shaft arranged at intervals. The positioning shaft passes through between the mounting frame, the main body arm and the connecting block, and the adjusting shaft is connected between the main body arm and the mounting frame. The connecting block is used to drive the adjusting shaft to rotate around the positioning shaft under the drive of the lead screw, so as to cause relative rotation between the main body arm and the mounting frame.

[0012] Further, the mounting frame is provided with a mounting hole, and an adjusting hole corresponding to the mounting hole is formed on the main body arm. The adjusting shaft passes through between the mounting hole and the adjusting hole; a guiding surface is formed on the adjusting hole, and the guiding surface is used for the adjusting shaft to slide.

[0013] Further, a fixing plate for fixedly connecting with an external base frame is further arranged on the mounting frame.

[0014] Further, the motor and the mounting plate are fixed by means of threaded connection.

[0015] Compared with the prior art, the medical suspension tower of the present utility model has the beneficial effects that: the motor can drive the transmission mechanism to rotate, so that the lead screw assembly can be driven to rotate through the transmission mechanism, and the rotation of the lead screw can cause the position of the adjusting arm to change accordingly; thereby realizing the adjustment of the position of the adjusting arm in the height direction. The medical suspension tower of the present application has a simple structure, flexible position adjustment and more convenient use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the medical suspension tower in the first embodiment of the present utility model;

[0017] Figure 2 is a schematic diagram of the overall structure of the medical suspension tower in the second embodiment of the present utility model;

[0018] Figure 3 is a schematic diagram of the overall structure of the mounting frame in the embodiment of the present utility model;

[0019] Figure 4 is a schematic diagram of a partial structure of the adjusting arm in the embodiment of the present utility model;

[0020] Figure 5 is a schematic diagram of a partial structure of the medical suspension tower in the first embodiment of the present utility model;

[0021] Figure 6 is Figure 5Exploded view of the corresponding structure;

[0022] Figure 7 is a schematic diagram of a partial structure of a medical suspension tower in the second embodiment of the present utility model;

[0023] Figure 8 is Figure 7 the exploded view of the corresponding structure.

[0024] In the drawings, each reference numeral represents: 1, mounting frame; 11, mounting plate; 111, first assembly port; 112, second assembly port; 12, fixing plate;

[0025] 2, motor;

[0026] 3a, gear assembly; 31a, driving wheel; 32a, driven wheel; 3b, sprocket assembly; 31b, driving wheel; 32b, driven wheel; 33b, chain;

[0027] 4a, lead screw assembly; 41a, lead screw; 42a, bearing; 421a, first bearing; 422a, second bearing; 43a, fixing piece; 4b, lead screw; 41b, second nut; 42b, locking washer; 43b, fixing piece; 44b, bearing; 45b, fixing plate;

[0028] 5, adjusting arm; 51, main body arm; 52, connecting block; 53, first nut; 54, positioning shaft; 55, adjusting shaft; a1, first mounting hole; a2, second mounting hole; b, adjusting hole. Detailed implementation manners

[0029] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as limiting the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the scope of protection of the present utility model.

[0030] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0031] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0032] Embodiment:

[0033] As Figures 1-8 shown, in this embodiment, the medical suspension tower includes: a mounting frame 1, a motor 2, a transmission mechanism, a lead screw assembly 4a, and an adjustment arm 5; a mounting plate 11 is provided on the mounting frame 1, and spaced first assembly openings 111 and second assembly openings 112 are formed on the mounting plate 11. The motor 2 is fixed to the bottom side of the mounting plate 11, and the output end of the motor 2 passes through the first assembly opening 111 to be connected to the transmission mechanism. One end of the lead screw assembly 4a passes upward through the second assembly opening 112 from the bottom side of the mounting plate 11 and is connected to the transmission mechanism. The adjustment arm 5 is sleeved on the other end of the lead screw assembly 4a, and the adjustment arm 5 is rotationally matched with the lead screw assembly 4a.

[0034] Specifically, the motor 2 can drive the transmission mechanism to rotate, so that the lead screw assembly 4a can be driven to rotate through the transmission mechanism. The rotation of the lead screw 41a can cause the position of the adjustment arm 5 to change accordingly; thereby realizing the position adjustment of the adjustment arm 5 in the height direction. It can be seen that the medical suspension tower of the present application has a simple structure, flexible position adjustment, and more convenient use.

[0035] As Figures 1-4As shown in the figure, in this embodiment, the adjusting arm 5 includes a main body arm 51 and a connecting block 52 movably connected to the main body arm 51. The connecting block 52 is connected to the lead screw 41a of the lead screw assembly 4a through a first nut 53. Specifically, the main body arm 51 is indirectly connected to the first nut 53, that is, the main body arm 51 is movably connected to the first nut 53 through the connecting block 52, so that the adjustment range is not limited to the overall rise or fall of the main body arm 51 with the first nut 53, and other forms of position adjustment can also be realized, improving the flexibility of the position adjustment of the adjusting arm 5.

[0036] Furthermore, in this embodiment, the adjusting arm 5 further includes a positioning shaft 54 and an adjusting shaft 55 arranged at intervals. The positioning shaft 54 passes through the mounting bracket 1, the main body arm 51 and the connecting block 52, and the adjusting shaft 55 is connected between the main body arm 51 and the mounting bracket 1; the connecting block 52 is used to drive the adjusting shaft 55 to rotate around the positioning shaft 54 under the drive of the lead screw 41a, so that a relative rotation occurs between the main body arm 51 and the mounting bracket 1. Through the arrangement of the positioning shaft 54 and the adjusting shaft 55, a relative rotation can occur between the main body arm 51 and the mounting bracket 1 around the positioning shaft 54, that is, one end of the main body arm 51 far from the connecting block 52 can be raised or lowered, so as to flexibly avoid obstacles or pedestrians.

[0037] In some specific implementation manners, the mounting bracket 1 is provided with mounting holes, and the main body arm 51 is provided with adjusting holes b corresponding to the mounting holes. The adjusting shaft 55 passes through the corresponding mounting holes and adjusting holes b; a guiding surface is formed on the adjusting hole b, and the guiding surface is used for the adjusting shaft 55 to slide. Specifically, both the mounting bracket 1 and the main body arm 51 are provided with mounting holes for the positioning shaft 54 or the adjusting shaft 55 to pass through, that is, the mounting bracket 1 is provided with first mounting holes a1, and the main body arm 51 is provided with second mounting holes a2 and adjusting holes b. One end of the main body arm 51 and the connecting block 52 both pass through the mounting bracket 1. The connecting block 52 has a mounting cavity. The part of the first mounting hole a1 of the mounting bracket 1, the second mounting hole a2 of the main body arm 51 and the mounting cavity on the connecting block 52 are passed through by the positioning shaft 54 to connect the three into one body. The adjusting shaft 55 passes through the other part of the first mounting hole a1 on the mounting bracket 1 and the adjusting hole b on the main body arm 51 to realize the limit connection between the mounting bracket 1 and the main body arm 51. A guiding surface is formed on the adjusting hole b, and the adjusting shaft 55 can move along the guiding surface, so that a relative rotation occurs between the main body arm 51 and the mounting bracket 1, thereby realizing the position adjustment of the main body arm 51. In some more specific implementation manners, the shape and size of the adjusting hole b can be designed according to actual needs, so that the main body arm 51 can move within the required range, which is not limited here.

[0038] Such as Figures 1-3As shown, in this embodiment, a fixing plate 12 for fixedly connecting with an external base frame is further provided on the mounting frame 1. Multiple assembly holes can be formed on the fixing plate 12, so that the fixing plate 12 and the external base frame can be connected through fasteners such as bolts. The mounting frame 1 and the motor 2 can be firmly fixed on the mounting frame 1.

[0039] In this embodiment, the transmission mechanism can be a gear assembly 3a or a sprocket assembly 3b:

[0040] In the first implementation manner, the transmission mechanism is a gear assembly 3a. As Figure 1 、 5 、6 shows, the gear assembly 3a includes a driving wheel 31a connected to the output end, a driven wheel 32a meshing with the driving wheel 31a, and a lead screw assembly 4a connected to the driven wheel 32a. The output end of the motor 2 and the driving wheel 31a can be connected through a coupling. When the motor 2 rotates, it can drive the driving wheel 31a to rotate. The driving wheel 31a rotates to drive the driven wheel 32a to rotate, and then drives the lead screw 41a to rotate, finally realizing lifting adjustment. In this embodiment, the motor 2 and the mounting plate 11 are fixed by means of threaded connection. That is, the motor 2 can be fixed on the mounting plate 11 through four screws, and the fixing effect is good.

[0041] Further, as an example, the lead screw assembly 4a includes a lead screw 41a and a bearing 42a sleeved on the outer periphery of the lead screw 41a. The bearing 42a is fixed on the second assembly port 112. The top end of the lead screw 41a enters the assembly hole of the driven wheel 32a and is fixed to the assembly hole. The lead screw 41a can drive the adjusting arm 5 to move as the driven wheel 32a rotates. The bearing 42a can stabilize the position of the lead screw 41a and make the rotation of the lead screw 41a smoother and more stable. Further, in this embodiment, the lead screw assembly 4a further includes a fixing member 43a. Grooves adapted to the fixing member 43a are respectively formed on the outer periphery of the lead screw 41a and the wall surface of the assembly hole. A part of the fixing member 43a is embedded in the groove of the lead screw 41a, and the other part is embedded in the groove at the assembly hole. That is, the lead screw 41a and the assembly hole of the driven wheel 32a are connected and integrated through cooperation with the fixing member 43a, which can ensure the connection stability between the lead screw 41a and the driven wheel 32a. In some specific implementation manners, a limiting edge is connected inside the second assembly port 112; the bearing 42a is included inside the second assembly port 112, and a first bearing 421a and a second bearing 422a are respectively installed at both ends of the limiting edge. That is, two bearings 42a are provided, and the first bearing 421a and the second bearing 422a are respectively inserted from both ends of the second assembly port 112, which can further improve the connection stability between the lead screw 41a and the mounting plate 11 while making the rotation of the lead screw 41a smoother and more stable.

[0042] In the second embodiment, the transmission mechanism is a sprocket assembly 3b. As shown in Figure 2 , 7 , and 8, the sprocket assembly 3b is connected to one end of the motor 2 and the lead screw 4b. The sprocket assembly 3b is used to drive the lead screw 4b to rotate under the drive of the motor 2; the end of the adjusting arm 5 is sleeved on the other end of the lead screw 4b, and the adjusting arm 5 is movably connected to the mounting frame 1. The lead screw 4b is used to drive the adjusting arm 5 to swing up and down relative to the mounting frame 1. Specifically, the sprocket assembly 3b can drive the lead screw 4b to rotate through the drive of the motor 2, so that the lead screw 4b can rotate and cooperate with the corresponding connection part on the adjusting arm 5, and then the adjusting arm 5 can be controlled to swing up and down relative to the mounting frame 1, thereby realizing the adjustment of the position height direction of the adjusting arm 5. The medical suspension tower of the present application has a simple structure, flexible position adjustment, and is more convenient to use.

[0043] As an example, the sprocket assembly 3b includes a driving wheel 31b, a driven wheel 32b, and a chain 33b. The driving wheel 31b is connected to the motor 2, the driven wheel 32b is connected to the lead screw 4b, and the inner sides of the chain 33b are respectively connected to the outer periphery of the driving wheel 31b and the outer periphery of the driven wheel 32b. Specifically, the bottom surface of the driving wheel 31b is attached to the motor 2, the output end of the motor 2 passes through the assembly hole of the driving wheel 31b and cooperates with the driving wheel 31b, and the output end of the motor 2 and the driving wheel 31b can be fixed by set screws. The chain 33b is connected between the driving wheel 31b and the driven wheel 32b, so that the driving wheel 31b, the chain 33b, and the driven wheel 32b can cooperate with each other and rotate under the drive of the motor 2.

[0044] As an example, the mounting frame 1 includes a mounting plate 11. The mounting plate 11 is provided with spaced first assembly openings 111 and second assembly openings 112. The output end of the motor 2 passes through the first assembly opening 111 from the bottom of the mounting plate 11 and is connected to the driving wheel 31b on the upper side of the mounting plate 11, and the lead screw 4b passes through the second assembly opening 112 from the bottom of the mounting plate 11 and is connected to the driven wheel 32b on the upper side of the mounting plate 11. With such a setting, the assembly between the sprocket assembly 3b, the lead screw 4b, and the mounting plate 11 is ingenious, the structural stability is good, and the positions of the components are compact, which is beneficial to reducing the volume of the device. The motor 2 can be fixed to the mounting frame 1 as a whole through fasteners, that is, the motor 2 can be fixed to the bottom side of the mounting plate 11 by four or six screws, and the fixing effect is good. The frame body also includes a main frame body. The mounting plate 11 can be fixed to the main frame body through structures such as shafts and threaded components to ensure the structural stability of the mounting frame 1.

[0045] As an example, a bearing 44b is provided on the outer periphery of the lead screw 4b, and the bearing 44b is installed in the second assembly port 112. The lead screw 4b can drive the adjusting arm 5 to move as the driven wheel 32b rotates, while the bearing 44b can stabilize the position of the lead screw 4b and make the rotation of the lead screw 4b smoother and more stable. Specifically, two bearings 44b can also be provided on the lead screw 4b, and the two bearings 44b can be respectively inserted into the second assembly port 112 from the upper and lower sides of the second assembly port 112. While further improving the connection stability between the lead screw 4b and the mounting plate 11, the rotation of the lead screw 4b can be made smoother and more stable, and the installation operation is simple. A fixing piece 45b can also be sleeved on the lead screw 4b, and the fixing piece 45b can be located at the outer end face of the bearing 44b (that is, at the end of the bearing 44b far from the other bearing 44b), thereby improving the assembly stability of the lead screw 4b and the bearing 44b.

[0046] Further, as an example, the top end of the lead screw 4b passes through the assembly hole of the driven wheel 32b and is fixedly matched with the second nut 41b. A stop washer 42b is still connected between the lead screw 4b and the second nut 41b, and the stop washer 42b can prevent the first nut 53 from loosening when the lead screw 4b rotates, thereby stabilizing the lead screw 4b. The second nut 41b in this embodiment can be a round nut, a square nut, a hexagonal nut, etc., preferably a round nut. The round nut can cooperate with the stop washer 42b. During assembly, the inner tongue of the stop washer 42b is inserted into the limit groove of the lead screw 4b, and the outer tongue of the stop washer 42b is embedded in the groove of the round nut, and the round nut can be locked. Further, in some embodiments, the lead screw 4b further includes a fixing member 43b. Grooves adapted to the fixing member 43b are respectively formed on the outer periphery of the lead screw 4b and the wall surface of the assembly hole. A part of the fixing member 43b is embedded in the groove of the lead screw 4b, and the other part is embedded in the groove at the assembly hole. That is, the lead screw 4b and the assembly hole of the driven wheel 32b are limited by the fixing member 43b to ensure that the lead screw 4b and the driven wheel 32b can be firmly connected as a whole, and further ensure that the driven wheel 32b can drive the lead screw 4b to rotate stably.

[0047] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A medical suspension arm, characterized in that, It includes a mounting frame, a motor, a transmission mechanism, a lead screw assembly and an adjusting arm; a mounting plate is provided on the mounting frame, a spaced first assembly opening and a second assembly opening are formed on the mounting plate, the motor is fixed to the bottom side of the mounting plate, and the output end of the motor passes through the first assembly opening and is connected to the transmission mechanism, one end of the lead screw assembly passes upward through the second assembly opening from the bottom side of the mounting plate and is connected to the transmission mechanism, the adjusting arm is sleeved on the other end of the lead screw assembly, and the adjusting arm is rotationally matched with the lead screw assembly.

2. The medical suspension tower according to claim 1, characterized in that, The transmission mechanism is a gear assembly, the gear assembly includes a driving wheel connected to the output end, a driven wheel meshing with the driving wheel, and the lead screw assembly is connected to the driven wheel.

3. The medical pendant according to claim 1, wherein, The transmission mechanism is a sprocket assembly, the sprocket assembly includes a driving wheel, a driven wheel and a chain, the driving wheel is connected to the output end, the driven wheel is connected to the top end of the lead screw, and the inner side of the chain is respectively connected to the outer periphery of the driving wheel and the outer periphery of the driven wheel in a mating manner.

4. The medical suspension tower according to claim 1, wherein, The lead screw assembly includes a lead screw and a bearing sleeved on the outer periphery of the lead screw, the bearing is fixed on the second assembly opening; the transmission mechanism is provided with an assembly hole, and the top end of the lead screw enters the assembly hole and is fixed to the assembly hole.

5. The medical pendant according to claim 4, characterized in that, The lead screw assembly further includes a fixing member, grooves adapted to the fixing member are respectively formed on the outer periphery of the lead screw and the wall surface of the assembly hole, and a part of the fixing member is embedded in the groove of the lead screw, and the other part is embedded in the groove at the assembly hole.

6. The medical pendant according to claim 4, characterized in that A limiting edge is connected in the second assembly opening; the bearing includes a first bearing and a second bearing which are arranged in the second assembly opening and respectively mounted at both ends of the limiting edge.

7. The medical suspension tower according to claim 4, characterized in that, The adjusting arm includes a main body arm and a connecting block movably connected to the main body arm, and the connecting block is connected to the lead screw through a first nut.

8. The medical pendant according to claim 7, wherein, The adjusting arm further includes a positioning shaft and an adjusting shaft arranged at intervals, the positioning shaft passes through the mounting frame, the main body arm and the connecting block, and the adjusting shaft is connected between the main body arm and the mounting frame; the connecting block is used for driving the adjusting shaft to rotate around the positioning shaft under the drive of the lead screw, so as to cause relative rotation between the main body arm and the mounting frame.

9. The medical pendant according to claim 8, wherein, The mounting frame is provided with a mounting hole, an adjusting hole corresponding to the mounting hole is formed on the main body arm, and the adjusting shaft passes through the mounting hole and the adjusting hole; a guiding surface is formed on the adjusting hole, and the guiding surface is used for the adjusting shaft to slide.

10. The medical suspension tower according to claim 1, characterized in that, A fixing plate for fixedly connecting with an external base frame is further provided on the mounting frame; and / or, the motor and the mounting plate are fixed by means of threaded connection.

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