Telescopic device and shifting machine

Abstract

The invention provides a telescopic device and a shifting machine, the telescopic device comprises a fixed part and a telescopic part arranged on the fixed part, and the telescopic part comprises a mounting bracket, a telescopic assembly and a transmission assembly; the telescopic assembly comprises a driving unit, a first telescopic unit and a supporting unit. The first telescopic unit comprises a first support slidably connected to the mounting support. The driving unit drives the first bracket to get away from or close to the mounting bracket; the transmission assembly comprises a belt transmission unit and a belt conveying unit. The first conversion set is arranged to support the first support when the first support stretches out, so that the weight of a patient is shared by the sickbed, the connecting stress of the first support concentrated at the connecting point of the mounting support when the telescopic assembly stretches out is shared, the patient is supported through the supporting unit, the structure is stable and reliable, and the weight of the patient can be effectively borne; the problems that the friction force is too large when the first support moves and the friction force is too large when the first support moves are effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a telescopic device and a transfer machine. Background Art

[0002] At present, hospital nursing faces difficulties such as difficulty in transferring special patients, which may cause secondary injuries, low safety and comfort coefficient, and poor level of intelligence. These problems increase the risk of secondary injuries during the transfer of critically ill patients, preoperative and postoperative patients, disabled groups, and patients with fractures and bone injuries. At the same time, they greatly increase the workload of medical staff and reduce the operating efficiency of medical facilities.

[0003] Due to the different weights of patients, how to ensure the transfer efficiency and safety of patients with a heavier weight, such as 100 kg, during bed transfer is a problem that is difficult to solve with current patient transfer equipment. Therefore, there is an urgent need for a device suitable for large-load usage scenarios to provide a transfer solution for patients who are severely comatose or whose condition is not suitable for normal transfer through traditional methods. Summary of the invention

[0004] Based on this, in order to solve the above problems, the present invention provides a telescopic device and a transfer machine, and its specific technical solutions are as follows:

[0005] On the one hand, a telescopic device includes a fixed component and a telescopic component arranged on the fixed component, the telescopic component includes a mounting bracket, a telescopic assembly and a transmission assembly; the telescopic assembly includes a driving unit, a first telescopic unit and a supporting unit, the first telescopic unit includes a first bracket slidably connected to the mounting bracket; the driving unit drives the first bracket away from or close to the mounting bracket; the transmission assembly includes a belt transmission unit and a belt conveying unit, the belt conveying unit includes a fixed roller group arranged on the mounting bracket, a first roller group arranged on the first bracket, and a conveying belt wound around the fixed roller group and the first roller group; the belt transmission unit is used to drive the fixed roller group to rotate and drive the conveying belt to perform a conveying action; the supporting unit includes a first support wheel and a first conversion group for connecting the first support wheel and the first bracket, the first conversion group is used to support the first bracket when the first bracket is extended.

[0006] The above-mentioned telescopic device supports the first bracket when the first bracket is extended, thereby sharing the patient's weight on the bed and sharing the connection stress of the first bracket concentrated on the connection point of the mounting bracket when the telescopic component is extended. The patient is supported by the support unit, the structure is stable and reliable, and can effectively bear the patient's weight, and effectively solves the problem of excessive friction when the first bracket moves and the problem of excessive friction when moving.

[0007] Furthermore, the first conversion group includes a first connecting rod connecting the first supporting wheel and the first bracket, and a spring-pressing member vertically disposed on top of the first connecting rod.

[0008] Furthermore, the elastic pressure member includes a spring member whose two ends are respectively connected to the first bracket and the first connecting rod.

[0009] Furthermore, the spring-pressing member is arranged on a side of the first connecting rod away from the mounting bracket; the first bracket is provided with a mounting structure for mounting the spring-pressing member, the mounting structure includes a mounting groove and a limiting protrusion, the mounting groove can accommodate the first conversion group, and the limiting protrusion is arranged on a side of the mounting groove away from the spring-pressing member.

[0010] Furthermore, the telescopic component also includes a guide support assembly, which includes guide plates arranged on both sides of the mounting bracket, guide rails arranged on the guide plates, and a guide unit arranged on the first bracket; the guide unit includes a first wheel group that rolls in contact with the guide plates, and a second wheel group that rolls in contact with the guide rails.

[0011] Furthermore, the guide track is a guide ridge protruding inward from the guide plate; the second wheel set includes a first guide wheel in rolling contact with the lower side of the guide ridge, and a second guide wheel in rolling contact with the upper side of the guide ridge.

[0012] Furthermore, the telescopic assembly also includes a second telescopic unit; the second telescopic unit includes a second bracket slidably connected to the first bracket.

[0013] Furthermore, the belt drive unit includes a transmission motor and a transmission sprocket group; the transmission motor is fixedly mounted on the mounting bracket, and the fixed roller group includes a driving roller; the transmission sprocket group includes a driving sprocket arranged at the output end of the transmission motor, a driven sprocket connected to the driving roller hub, and a transmission chain that transmits and connects the driving sprocket and the driven sprocket.

[0014] Furthermore, the driving unit includes a driving motor arranged on the first bracket, a driving sprocket arranged at the output end of the driving motor, and a driving chain drivingly connected to the driving sprocket; one end of the driving chain is fixedly connected to the mounting bracket, and the other end is fixedly connected to the second bracket.

[0015] On the other hand, a transfer machine includes a movable bed and a telescopic device; the fixing component is arranged on the movable bed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention can be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily drawn to scale, but the emphasis is placed on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0017] Figure 1 is a schematic structural diagram of a telescopic device according to an embodiment of the present invention;

[0018] Figure 2 is a cross-sectional view of the structure of the telescopic device according to one embodiment of the present invention Figure 1 ;

[0019] Figure 3 is a cross-sectional view of the structure of the telescopic device according to one embodiment of the present invention Figure 2 ;

[0020] Figure 4 yes Figure 3 A magnified view of the structure at E in the middle;

[0021] Figure 5 is a structural schematic diagram of a support unit and a mounting structure according to an embodiment of the present invention;

[0022] Figure 6 It is a schematic structural diagram of a transfer machine according to an embodiment of the present invention.

[0023] Description of reference numerals:

[0024] 1. Fixed parts; 2. Telescopic parts; 3. Mounting bracket; 4. Telescopic assembly; 5. Transmission assembly; 6. Guide support assembly; 7. Moving bed; 8. Telescopic device;

[0025] 41. driving unit; 42. first telescopic unit; 43. supporting unit; 44. mounting structure; 45. second telescopic unit;

[0026] 411, driving motor; 412, driving sprocket; 413, driving chain;

[0027] 421, first bracket;

[0028] 431, first supporting wheel; 432, first conversion group; 433, first connecting rod; 434, elastic member;

[0029] 441, mounting groove; 442, limiting protrusion;

[0030] 451, second bracket;

[0031] 51. Belt drive unit; 52. Belt conveyor unit; 53. Transmission motor; 54. Transmission sprocket set;

[0032] 521, fixed roller group; 522, first roller group; 523, conveyor belt; 524, active roller;

[0033] 541, driving sprocket; 542, driven sprocket;

[0034] 61. guide plate; 62. guide rail; 63. guide unit;

[0035] 631, first wheel group; 632, second wheel group; 633, first guide wheel; 634, second guide wheel. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with its embodiments. It should be understood that the specific implementation methods described herein are only used to explain the present invention and do not limit the protection scope of the present invention.

[0037] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0039] The “first” and “second” mentioned in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0040] On the one hand, if Figure 1 and Figure 2 , Figure 3As shown, a telescopic device in one embodiment of the present invention includes a fixed component 1 and a telescopic component 2 arranged on the fixed component 1, the telescopic component 2 includes a mounting bracket 3, a telescopic assembly 4 and a transmission assembly 5; the telescopic assembly 4 includes a driving unit 41, a first telescopic unit 42 and a supporting unit 43, the first telescopic unit 42 includes a first bracket 421 slidably connected to the mounting bracket 3; the driving unit 41 drives the first bracket 421 away from or close to the mounting bracket 3; the transmission assembly 5 includes a belt driving unit 51 and a belt conveying unit 52, and the belt conveying unit 52 includes a setting A fixed roller group 521 on the mounting bracket 3, a first roller group 522 arranged on the first bracket 421, and a conveying belt 523 wound around the fixed roller group 521 and the first roller group 522; the belt transmission unit 51 is used to drive the fixed roller group 521 to rotate and drive the conveying belt 523 to perform a conveying action; the supporting unit 43 includes a first supporting wheel 431, and a first conversion group 432 for connecting the first supporting wheel 431 and the first bracket 421, and the first conversion group 432 is used to support the first bracket 421 when the first bracket 421 is extended.

[0041] The above-mentioned telescopic device supports the first bracket 421 when the first bracket 421 is extended by setting the first conversion group 432, so that the patient's weight is shared on the bed, and the connection stress of the first bracket 421 concentrated on the connection point of the mounting bracket 3 when the telescopic component 4 is extended is shared. The patient is supported by the support unit 43. The structure is stable and reliable, and can effectively bear the patient's weight, and effectively solves the problem of excessive friction when the first bracket 421 moves.

[0042] like Figure 2 and Figure 5 As shown, in one embodiment, the first conversion group 432 includes a first connecting rod 433 connecting the first supporting wheel 431 and the first bracket 421, and a spring-pressing member 434 vertically arranged on top of the first connecting rod 433. In this way, the spring-pressing member 434 vertically arranges the first connecting rod 433 on top of the first bracket 421, so that when the first bracket 421 is extended, the first connecting rod 433 is used as a supporting point, and the connection stress of the first bracket 421 concentrated at the connection point of the mounting bracket 3 can be effectively shared.

[0043] In one embodiment, the spring member 434 includes a spring member whose two ends are respectively connected to the first bracket 421 and the first connecting rod 433. In this way, the spring member has a simple and reliable structure, and the elastic restoring force of the spring member can effectively press the first connecting rod 433 to be vertically arranged.

[0044] In one embodiment, the first conversion group 432 further includes a first rod seat and a first rod body, the second rod body includes a second hinged end for hinged connection with the first connecting rod 433 and a sleeve rod end sleeved with the spring member, the first rod seat includes a first hinged end hinged with the first bracket 421 and a plug end sleeved with the sleeve rod end; the sleeve rod end can move in the plug end. In this way, by utilizing the elastic restoring force of the spring member, the first rod seat can move relative to the first rod body, thereby effectively pressing the first connecting rod 433 to be vertically arranged.

[0045] In one embodiment, the spring-pressing member 434 is arranged on a side away from the mounting bracket 3 relative to the first connecting rod 433; the first bracket 421 is provided with a mounting structure 44 for mounting the spring-pressing member 434, the mounting structure 44 comprises a mounting groove 441 and a limiting protrusion 442, the mounting groove 441 can accommodate the first conversion group 432, and the limiting protrusion 442 is arranged on a side of the mounting groove 441 away from the spring-pressing member 434. In this way, when the first bracket 421 extends to the mounting bracket 3, the spring-pressing member 434 presses the first connecting rod 433, and the first connecting rod 433 is arranged in a vertical state due to the limiting protrusion 442; when the first bracket 421 retracts to the mounting bracket 3, the first connecting rod 433 is pressed and rotated toward one side of the spring-pressing member 434, the spring-pressing member 434 is compressed, and is placed in the mounting groove 441 together with the spring-pressing member 434, so that the first conversion group 432 is automatically retracted.

[0046] In one embodiment, the mounting bracket 3 is a mounting shell provided with a telescopic outlet, a pressing roller is provided on the inner wall of the mounting shell near the telescopic outlet, a guide flange adapted to fit the pressing roller is provided on the first bracket 421, and the mounting groove 441 is provided on the guide flange. Specifically, a limiting protrusion is provided on the side of the pressing roller toward the telescopic inner cavity of the mounting shell to limit the ejection of the spring-pressing member 434.

[0047] In one embodiment, the first conversion group 432 further includes a second connecting rod, which is used to connect the spring-pressing member 434 and the first bracket 421. Specifically, the second connecting rod includes a first rod seat, a first rod body and a compression spring. In this way, when the first bracket 421 is retracted to the mounting bracket 3, the first connecting rod 433 is pressed and rotated to one side of the spring-pressing member 434, the spring-pressing member 434 is compressed, and the second connecting rod rotates accordingly, avoiding the first support wheel 431 and providing a storage space for the first support wheel 431, and is placed in the mounting groove 441 together, so that the first conversion group 432 is automatically retracted.

[0048] like Figure 3 and Figure 4As shown, in one embodiment, the telescopic component 2 further includes a guide support assembly 6, which includes guide plates 61 arranged on both sides of the mounting bracket 3, guide rails 62 arranged on the guide plates 61, and guide units 63 arranged on the first bracket 421; the guide unit 63 includes a first wheel group 631 rolling contact with the guide plate 61, and a second wheel group 632 rolling contact with the guide rail 62. In this way, the displacement of the first bracket 421 in the vertical direction of the telescopic inner cavity of the mounting bracket 3 is limited by the rolling contact between the second wheel group 632 and the guide rail 62; the first wheel group 631 rolling contact with the guide plate 61 limits the displacement of the first bracket 421 in the left and right directions of the telescopic inner cavity of the mounting bracket 3.

[0049] In one embodiment, the guide rail 62 is a guide ridge protruding inward from the guide plate 61; the second wheel group 632 includes a first guide wheel 633 in rolling contact with the lower side of the guide ridge, and a second guide wheel 634 in rolling contact with the upper side of the guide ridge. Specifically, the first guide wheel 633 and the second guide wheel 634 are respectively connected to the first bracket 421 through adjusting screws.

[0050] In one embodiment, the telescopic assembly 4 further includes a second telescopic unit 45; the second telescopic unit 45 includes a second bracket 451 slidably connected to the first bracket 421. In this way, the telescopic assembly 4 is implemented in three stages of telescopic motion by the second telescopic unit 45, thereby reducing the length dimension of the mounting bracket 3 along the telescopic direction, so that the telescopic device can be widely used in various scenarios.

[0051] In one embodiment, the support unit 43 further includes a second conversion group disposed on the second bracket 451 , and the structure of the second conversion group is similar to that of the first conversion group 432 .

[0052] In one embodiment, a second guide inner cavity is provided in the first bracket 421, and the direction of the second guide inner cavity is downward relative to the horizontal plane. Thus, when the second bracket 451 is extended, the second bracket 451 is tilted and arranged with the first bracket 421, so that the second bracket 451 can be extended under the patient, and the patient is transported to the first bracket 421 and the mounting bracket 3 by the conveying belt 523 to complete the conveying action.

[0053] In one embodiment, the belt transmission unit 51 includes a transmission motor 53 and a transmission sprocket set 54; the transmission motor 53 is fixedly mounted on the mounting bracket 3, and the fixed roller set 521 includes a driving roller 524; the transmission sprocket set 54 includes a driving sprocket 541 arranged at the output end of the transmission motor 53, a driven sprocket 542 connected to the hub of the driving roller 524, and a transmission chain that drives and connects the driving sprocket 541 and the driven sprocket 542. In this way, the driving sprocket 541 is driven to rotate by the transmission motor 53, and the driven sprocket 542 is driven to rotate by the transmission chain, so that the driving roller 524 is rotated, thereby driving the conveying belt 523 to perform the conveying action.

[0054] In one embodiment, the transmission motor 53 is a servo motor. Thus, the servo motor is used for speed feedback control, which can ensure the uniform, stable and reliable movement of the heavily loaded patient.

[0055] In one embodiment, the driving unit 41 includes a driving motor 411 disposed on the first bracket 421, a driving sprocket 412 disposed at the output end of the driving motor 411, and a driving chain 413 drivingly connected to the driving sprocket 412; one end of the driving chain 413 is fixedly connected to the mounting bracket 3, and the other end is fixedly connected to the second bracket 451. Specifically, the driving motor 411 is a servo motor. In this way, the driving sprocket 412 is driven to rotate by the driving motor 411, and the driving sprocket 412 is drivingly connected to the chain link on the driving chain 413, so that the first bracket 421, the second bracket 451 and the mounting bracket 3 move relative to each other, thereby completing the telescopic action of the first bracket 421 and the second bracket 451; at the same time, the servo motor is used for speed feedback control to ensure that the extension speed of the first bracket 421 is uniform, stable and reliable.

[0056] like Figure 1 and Figure 6 As shown, on the other hand, a transfer machine in an embodiment of the present invention includes a mobile bed body 7 and a telescopic device 8; the fixing component 1 is arranged on the mobile bed body 7. In this way, the telescopic device 8 is controlled by the mobile bed body 7 to move to the side of the bed, the first bracket 421 is extended under the patient, the conveying belt 523 conveys the patient to the mounting bracket 3, and then the first bracket 421 is retracted to the mounting bracket 3, thereby completing the transfer of the patient.

[0057] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A telescopic device, characterized in that: It comprises a fixed component (1) and a telescopic component (2) arranged on the fixed component (1), wherein the telescopic component (2) comprises a mounting bracket (3), a telescopic assembly (4) and a transmission assembly (5); The telescopic assembly (4) comprises a driving unit (41), a first telescopic unit (42) and a supporting unit (43); the first telescopic unit (42) comprises a first bracket (421) slidably connected to the mounting bracket (3); The driving unit (41) drives the first bracket (421) to move away from or closer to the mounting bracket (3); The transmission assembly (5) comprises a belt transmission unit (51) and a belt conveying unit (52); the belt conveying unit (52) comprises a fixed roller group (521) arranged on the mounting bracket (3), a first roller group (522) arranged on the first bracket (421), and a conveying belt (523) wound around the fixed roller group (521) and the first roller group (522); The belt drive unit (51) is used to drive the fixed roller group (521) to rotate and drive the conveying belt (52) to perform a conveying action; The support unit (43) comprises a first support wheel (431) and a first conversion group (432) for connecting the first support wheel (431) and the first bracket (421), wherein the first conversion group (432) is used to support the first bracket (421) when the first bracket (421) is extended.

2. A telescopic device according to claim 1, characterized in that: The first conversion group (432) comprises a first connecting rod (433) connecting the first supporting wheel (431) and the first bracket (421), and a spring-pressing member (434) vertically arranged on top of the first connecting rod (433).

3. A telescopic device according to claim 2, characterized in that: The elastic member (434) comprises a spring member with two ends respectively connected to the first bracket (421) and the first connecting rod (433).

4. A telescopic device according to claim 2, characterized in that: The elastic member (434) is arranged on a side of the first connecting rod (434) away from the mounting bracket (3); The first bracket (421) is provided with a mounting structure (44) for mounting the spring-loaded component (434), the mounting structure (44) comprising a mounting groove (441) and a limiting protrusion (442), the mounting groove (441) being capable of accommodating the first conversion group (432), and the limiting protrusion (442) being arranged on a side of the mounting groove (441) away from the spring-loaded component (434).

5. A telescopic device according to claim 1, characterized in that: The telescopic component (2) further comprises a guide support assembly (6), wherein the guide support assembly (6) comprises guide plates (61) arranged on both sides of the mounting bracket (3), guide rails (62) arranged on the guide plates (61), and a guide unit (63) arranged on the first bracket (421); The guide unit (63) comprises a first wheel set (631) in rolling contact with the guide plate (61), and a second wheel set (632) in rolling contact with the guide track (62).

6. A telescopic device according to claim 5, characterized in that: The guide rail (62) is a guide convex strip protruding inwardly from the guide plate (61); The second wheel set (632) comprises a first guide wheel (633) in rolling contact with the lower side of the guide ridge, and a second guide wheel (634) in rolling contact with the upper side of the guide ridge.

7. A telescopic device according to claim 2, characterized in that: The telescopic assembly (4) further comprises a second telescopic unit (45); The second telescopic unit (45) comprises a second bracket (451) slidably connected to the first bracket (421).

8. A telescopic device according to claim 7, characterized in that: The belt transmission unit (51) comprises a transmission motor (53) and a transmission sprocket set (54); The transmission motor (53) is fixedly mounted on the mounting bracket (3), and the fixed roller group (521) includes a driving roller (524); The transmission sprocket assembly (54) comprises a driving sprocket (541) arranged at the output end of the transmission motor (53), a driven sprocket (542) connected to the hub of the driving roller (524), and a transmission chain that transmission-connects the driving sprocket (541) and the driven sprocket (542).

9. A telescopic device according to claim 8, characterized in that: The driving unit (41) comprises a driving motor (411) arranged on the first bracket (421), a driving sprocket (412) arranged at the output end of the driving motor (411), and a driving chain (413) drivingly connected to the driving sprocket (412); One end of the driving chain (413) is fixedly connected to the mounting bracket (3), and the other end is fixedly connected to the second bracket (451).

10. A transfer machine, characterized in that: It comprises a movable bed (7) and a telescopic device (8) according to any one of claims 1 to 9; The fixing component (1) is arranged on the movable bed (7).

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