Synchronous lifting mechanism for suspended DR machine and suspended DR machine

Abstract

The utility model provides a synchronous lifting mechanism for a suspended DR machine and the suspended DR.The lifting mechanism comprises a rack, a cow head assembly, a linkage mechanism, a plurality of guide mechanisms and a balance mechanism, the linkage mechanism comprises a plurality of linkage pieces and a transmission assembly, the adjacent linkage pieces are arranged in a sliding mode, and the transmission assembly is arranged between the linkage pieces; the linkage mechanism has a stretching state and a storage state, and the transmission assembly enables the multiple linkage pieces to be in transmission connection, so that when the linkage piece located on the second side ascends and descends, the linkage piece located between the first side and the second side ascends and descends synchronously, and switching between the stretching state and the storage state is achieved. The guide mechanisms are arranged between every two adjacent linkage pieces, and the balance mechanisms are used for providing upward constant tension for the linkage mechanisms. The lifting mechanism not only can meet the height requirement of work, but also can be stored to reduce the occupied space, and the guide rail can improve the stability and accuracy of movement of the linkage piece.

Description

Technical Field

[0001] The present application relates to the technical field of medical imaging equipment, and more specifically to a synchronous lifting mechanism for suspending a DR machine and a suspended DR machine. Background Art

[0002] DR stands for Direct Digital X-ray System. Suspended DR has the advantage of multiple degrees of freedom and can meet the needs of multi-body shooting, and its demand is gradually increasing. The hanger is the core component of suspended DR, and the lifting mechanism occupies a large proportion of the mechanical parts. Currently, most of the lifting mechanisms on the market are almost all realized by polygonal aluminum extruded sleeves and roller limiters, which have the problems of unstable movement of the lifting mechanism and inaccurate movement direction. Utility Model Content

[0003] The present application provides a synchronous lifting mechanism for suspending a DR machine and a suspended DR machine, which can improve the stability and accuracy of movement.

[0004] According to a first aspect, the present application provides a synchronous lifting mechanism for suspending a DR machine, comprising:

[0005] frame;

[0006] Bull head assembly;

[0007] A linkage mechanism, the linkage mechanism is used to drive the bull head assembly to move up and down, the linkage mechanism includes a plurality of linkage members and a transmission assembly, the linkage mechanism has a first side and a second side opposite to each other, one end of the linkage member located on the first side is fixedly arranged on the frame, and the remaining linkage members are arranged from the first side to the second side in sequence, and are slidably arranged between adjacent linkage members, the linkage mechanism has an extended state and a retracted state, the transmission assembly connects the plurality of linkage members by transmission, so that when the linkage member located on the second side moves up and down, the linkage members located between the first side and the second side move up and down synchronously, so as to realize the switching between the extended state and the retracted state;

[0008] A plurality of guide mechanisms, each of which is provided between two adjacent linkage members, and the guide mechanism comprises a guide rail and a guide block, wherein the guide rail and the guide block are respectively provided on opposite sides of two adjacent linkage members, so as to guide the two adjacent linkage members to perform linear motion along the extension direction of the guide rail;

[0009] and a balancing mechanism, wherein the balancing mechanism is used to provide an upward constant pulling force to the linkage mechanism.

[0010] In one embodiment, the transmission assembly includes a transmission wheel and a transmission chain, the transmission wheel is rotatably arranged, the transmission chain passes through the transmission wheel, one end of the transmission chain is fixed to a linkage member of the linkage mechanism, and the other end is fixed to another linkage member of the linkage mechanism.

[0011] In one embodiment, in the storage state, portions of the transmission chain located on opposite sides of the transmission wheel are of equal length.

[0012] In one embodiment, the linkage mechanism includes a first linkage member, a second linkage member, a third linkage member, a fourth linkage member and a transmission assembly. In the storage state, the first linkage member, the second linkage member, the third linkage member and the fourth linkage member are stacked in sequence from the first side to the second side, one end of the first linkage member is fixedly connected to the frame, and the bull head assembly is arranged on the fourth linkage member.

[0013] In one embodiment, the transmission assembly includes a first transmission wheel, a second transmission wheel, a first transmission chain and a second transmission chain, the first transmission wheel is arranged at an end of the second linkage member away from the frame, the first transmission chain passes through the first transmission wheel, one end of the first transmission chain is fixed to an end of the first linkage member close to the frame, and the other end is fixed to an end of the third linkage member close to the frame, the second transmission wheel is arranged at an end of the third linkage member away from the frame, the second transmission chain passes through the second transmission wheel, one end of the first transmission chain is fixed to an end of the second linkage member close to the frame, and the other end is fixed to an end of the fourth linkage member close to the frame.

[0014] In one embodiment, the guide rail extends from an end close to the frame to an end away from the frame.

[0015] In one embodiment, the balancing mechanism includes a constant force output component and a connecting member, wherein the constant force output component is arranged on the frame, one end of the connecting member is connected to the constant force output component, and the other end is fixedly connected to one end of the linkage member located on the second side close to the frame, so as to provide a constant upward pulling force to the linkage member located on the second side.

[0016] In one embodiment, the constant force output component is a spring balancer or a pneumatic balancer.

[0017] In one embodiment, it also includes multiple protective covers, two adjacent protective covers are slidably connected to each other, one end of the outermost protective cover is fixedly set on the frame, and when in the storage state, the anti-slip covers are stacked in sequence, and when in the extended state, the protective covers are covered on the linkage member one by one.

[0018] According to a second aspect, the present application provides a suspended DR machine, comprising the synchronous lifting mechanism for suspending the DR machine as described above; and a translation mechanism, the translation mechanism is connected to the frame and is used to drive the overall movement of the synchronous lifting mechanism for suspending the DR machine.

[0019] According to the above embodiment, the synchronous lifting mechanism for suspending the DR machine includes a linkage mechanism and multiple guide mechanisms. Since the linkage mechanism includes multiple linkage parts and a transmission assembly, a sliding arrangement is arranged between two adjacent linkage parts. When the linkage part located on the second side is lifted and lowered under the action of an external force, the transmission assembly can drive the remaining linkage parts arranged from the second side to the first side to lift and lower, thereby realizing the switching between the extended state and the stored state of the lifting mechanism. In the extended state, the distances from the multiple linkage parts from the first side to the second side to the frame increase successively, so that the maximum distance between the linkage mechanism and the frame can meet the lifting height requirement. In the stored state, multiple linkage parts are stacked, so that the maximum distance between the linkage mechanism and the frame is the length of the linkage part, which is convenient for storage and reduces the occupied space. When the linkage part is lifted and lowered, the guide rail can guide the linkage part to move in a straight line along it, so that the movement path of the linkage part is stable and consistent, which can improve the stability and accuracy of the movement of the linkage part.

[0020] The suspended DR machine according to the above embodiment has the above lifting mechanism, which can meet the lifting height requirements in the extended state and can also reduce the occupied space in the stored state, thereby facilitating the movement of the entire suspended DR machine or the movement of the entire lifting mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural stereoscopic schematic diagram of a lifting mechanism in an embodiment;

[0022] Figure 2 This is a structural front view of a lifting mechanism in an embodiment;

[0023] Figure 3 A schematic diagram of the lifting effect of a lifting mechanism in an embodiment;

[0024] Figure 4 This is a front view of the lifting effect structure of the lifting mechanism in one embodiment;

[0025] Figure 5 This is a schematic diagram of the structure after the protective cover is installed in one embodiment;

[0026] Among them: 100, frame; 200, bull head assembly; 300, linkage mechanism; 310, linkage member; 311, first linkage member; 312, second linkage member; 313, third linkage member; 314, fourth linkage member; 320, transmission assembly; 321, transmission wheel; 3211, first transmission wheel; 3212, second transmission wheel; 322, transmission chain; 3221, first transmission chain; 3222, second transmission chain; 400, guide mechanism; 410, guide rail; 420, guide block; 500, balancing mechanism; 510, constant force output assembly; 520, connecting member; 600, protective cover. DETAILED DESCRIPTION

[0027] The present application is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are intended to enable the present application to be better understood. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0028] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations, and the operation steps involved in each embodiment can also be replaced or adjusted in a sequence in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for the purpose of clearly describing a certain embodiment and do not mean that the composition and / or sequence are necessary.

[0029] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0030] The present application provides a suspended DR machine, which is used to perform X-ray photography on patients and analyze the patient's condition through the photographed images. It includes a synchronous lifting mechanism and a translation mechanism for suspending the DR machine, and the translation mechanism is connected to the frame and is used to drive the overall movement of the synchronous lifting mechanism for suspending the DR machine, that is, to drive it to perform lateral and / or longitudinal movements on a horizontal plane.

[0031] refer to Figure 1-5The lifting mechanism includes a frame 100, a bull head assembly 200, a linkage mechanism 300, a plurality of guide mechanisms 400 and a balancing mechanism 500. The linkage mechanism 300 is used to drive the bull head assembly 200 to move up and down. The linkage mechanism 300 includes a plurality of linkage members 310 and a transmission assembly 320. The linkage mechanism 300 has a first side and a second side opposite to each other. One end of the linkage member 310 located on the first side is fixedly arranged on the frame 100, and the remaining linkage members 310 are arranged from the first side to the second side in sequence, and are slidably arranged between adjacent linkage members 310. The linkage mechanism 300 has an extended state and a retracted state. The transmission assembly 320 moves the plurality of linkage members 310 to a desired state. The linkage member 310 is transmission connected so that when the linkage member 310 located on the second side moves up and down, the linkage member 310 located between the first side and the second side moves up and down synchronously to achieve switching between the extended state and the stored state. The guide mechanism 400 is provided between two adjacent linkage members 310. The guide mechanism 400 includes a guide rail 410 and a guide block 420. The guide rail 410 and the guide block 420 are respectively arranged on opposite sides of the two adjacent linkage members 310 to guide the two adjacent linkage members 310 to make linear motion along the extension direction of the guide rail. The balancing mechanism 500 is used to provide an upward constant pulling force to the linkage mechanism 300.

[0032] The linkage member 310 located on the second side is manually acted upon (manually or electrically), and preferentially performs lifting and lowering movements upward or downward. The linkage mechanism 300 performs lifting and lowering movements synchronously through linkage transmission, and also drives the bull head assembly 200 to lift and lower, and finally realizes the switching of the lifting mechanism between the extended state and the stored state. In the extended state, the bull head assembly 200 can reach the height of use, which is convenient for X-raying of patients with different parts or different heights. In the stored state, the entire lifting mechanism shrinks to the minimum height, which facilitates the overall movement of the lifting mechanism and avoids the height affecting the line of sight or colliding with other equipment during movement. The lifting movement is not limited to the movement parallel to the direction of gravity, but can also be a component of its movement trajectory parallel to the direction of gravity.

[0033] In one embodiment, the transmission assembly 320 includes a transmission wheel 321 and a transmission chain 322, the transmission wheel 321 is rotatably arranged, the transmission chain 322 passes through the transmission wheel 321, one end of the transmission chain is fixed to a linkage member 310 of the linkage mechanism 300, and the other end is fixed to another linkage member 310 of the linkage mechanism 300.

[0034] In one embodiment, in the storage state, the parts of the transmission chain located on opposite sides of the transmission wheel 321 are of equal length.

[0035] refer to Figure 2-4The linkage mechanism 300 includes a first linkage member 311, a second linkage member 312, a third linkage member 313, a fourth linkage member 314 and a transmission assembly 320. In the storage state, the first linkage member 311, the second linkage member 312, the third linkage member 313 and the fourth linkage member 314 are stacked in sequence from the first side to the second side, one end of the first linkage member 311 is fixedly connected to the frame 100, and the bull head assembly 200 is arranged on the fourth linkage member 314.

[0036] The transmission assembly 320 includes a first transmission wheel 3211, a second transmission wheel 3212, a first transmission chain 3221 and a second transmission chain 3222. The first transmission wheel 3211 is arranged at the end of the second linkage 312 away from the frame 100. The first transmission chain 3221 passes through the first transmission wheel 3211, one end of which is fixed to the end of the first linkage 311 close to the frame 100, and the other end of which is fixed to the end of the third linkage 313 close to the frame 100. The second transmission wheel 3212 is arranged at the end of the third linkage 313 away from the frame 100. The second transmission chain 3222 passes through the second transmission wheel 3212, one end of which is fixed to the end of the second linkage 312 close to the frame 100, and the other end of which is fixed to the end of the fourth linkage 314 close to the frame 100.

[0037] In order to make full use of the length (vertical dimension) of multiple linkage parts 310, the guide rail 410 is extended from one end close to the frame 100 to the end away from the frame 100, and the linkage parts 310 can eventually be roughly connected end to end. While meeting the lifting height requirements, it can also reduce the length of the entire lifting mechanism and reduce the occupied space.

[0038] In order to prevent the linkage member 310 from slipping off during the sliding process, the two ends of the guide rail 410 are provided with limiting parts, which can prevent the linkage member 310 from continuing to slide along the guide rail 410 and prevent the linkage member 310 from slipping off the guide rail 410.

[0039] The balancing mechanism 500 includes a constant force output assembly 510 and a connecting member 520. The constant force output assembly 510 is arranged on the frame 100. One end of the connecting member 520 is connected to the constant force output assembly 510, and the other end is fixedly connected to one end of the linkage member 310 located on the second side close to the frame 100, so as to provide an upward constant tension to the linkage member 310 located on the second side. The upward constant tension can be a vertically upward constant tension or an inclined upward constant tension. The vertically upward constant tension (which can be a vertically upward component of the inclined upward constant tension) is approximately equal to the sum of the gravity of the linkage mechanism 300, the bull head assembly 200 and the guide mechanism 400, so as to balance the gravity of the linkage mechanism 300, the bull head assembly 200 and the guide mechanism 400, and avoid the linkage mechanism 300, the bull head assembly 200 and the guide mechanism 400 from falling and damaging the equipment during operation.

[0040] In one embodiment, the constant force output assembly 510 is a spring balancer or a pneumatic balancer. The spring balancer and the pneumatic balancer are mature products in the prior art, and have the advantages of small size and stable output of constant force. The spring balancer is a disc structure, including structures such as a torsion spring and a tower wheel, and the torsion of the torsion spring is used to achieve stable output of constant tension. The connector 520 can be a wire rope or a chain, or other flexible structures with a certain strength.

[0041] In order to improve the aesthetics of the entire mechanism and protect the various components in the lifting mechanism, refer to Figure 5 , and also includes a plurality of protective covers 600, two adjacent protective covers 600 are slidably connected to each other, one end of the outermost protective cover 600 is fixedly set on the frame 100, and when in the storage state, the anti-slip covers 600 are stacked in sequence, and when in the extended state, the protective covers 600 are covered on the linkage member 310 one by one.

[0042] The above specific examples are used to illustrate the present application, which is only used to help understand the present application and is not intended to limit the present application. For technicians in the technical field to which the present application belongs, they can also make some simple deductions, deformations or substitutions based on the ideas of the present application.

Claims

1. A synchronous lifting mechanism for suspending a DR machine, characterized in that: include: frame; Bull head assembly; A linkage mechanism, the linkage mechanism is used to drive the bull head assembly to move up and down, the linkage mechanism includes a plurality of linkage members and a transmission assembly, the linkage mechanism has a first side and a second side opposite to each other, one end of the linkage member located on the first side is fixedly arranged on the frame, and the remaining linkage members are arranged from the first side to the second side in sequence, and are slidably arranged between adjacent linkage members, the linkage mechanism has an extended state and a retracted state, the transmission assembly connects the plurality of linkage members by transmission, so that when the linkage member located on the second side moves up and down, the linkage members located between the first side and the second side move up and down synchronously, so as to realize the switching between the extended state and the retracted state; A plurality of guide mechanisms, each of which is provided between two adjacent linkage members, and the guide mechanism comprises a guide rail and a guide block, wherein the guide rail and the guide block are respectively provided on opposite sides of two adjacent linkage members, so as to guide the two adjacent linkage members to perform linear motion along the extension direction of the guide rail; and a balancing mechanism, wherein the balancing mechanism is used to provide an upward constant pulling force to the linkage mechanism.

2. A synchronous lifting mechanism for suspending a DR machine according to claim 1, characterized in that: The transmission assembly includes a transmission wheel and a transmission chain. The transmission wheel is rotatably arranged. The transmission chain passes through the transmission wheel. One end of the transmission chain is fixed to a linkage member of the linkage mechanism, and the other end is fixed to another linkage member of the linkage mechanism.

3. A synchronous lifting mechanism for suspending a DR machine according to claim 2, characterized in that: In the storage state, the parts of the transmission chain located on opposite sides of the transmission wheel are of equal length.

4. The synchronous lifting mechanism for suspending a DR machine according to claim 1, characterized in that: The linkage mechanism includes a first linkage member, a second linkage member, a third linkage member, a fourth linkage member and a transmission assembly. In the storage state, the first linkage member, the second linkage member, the third linkage member and the fourth linkage member are stacked in sequence from the first side to the second side, one end of the first linkage member is fixedly connected to the frame, and the bull head assembly is arranged on the fourth linkage member.

5. The synchronous lifting mechanism for suspending a DR machine according to claim 4, characterized in that: The transmission assembly includes a first transmission wheel, a second transmission wheel, a first transmission chain and a second transmission chain, the first transmission wheel is arranged at an end of the second linkage member away from the frame, the first transmission chain passes through the first transmission wheel, one end of the first transmission chain is fixed to an end of the first linkage member close to the frame, and the other end is fixed to an end of the third linkage member close to the frame, the second transmission wheel is arranged at an end of the third linkage member away from the frame, the second transmission chain passes through the second transmission wheel, one end of the first transmission chain is fixed to an end of the second linkage member close to the frame, and the other end is fixed to an end of the fourth linkage member close to the frame.

6. The synchronous lifting mechanism for suspending a DR machine according to claim 1, characterized in that: The guide rail is extended from an end close to the frame to an end far away from the frame.

7. A synchronous lifting mechanism for suspending a DR machine according to any one of claims 1 to 6, characterized in that: The balancing mechanism includes a constant force output component and a connecting member, wherein the constant force output component is arranged on the frame, one end of the connecting member is connected to the constant force output component, and the other end is fixedly connected to one end of the linkage member located on the second side close to the frame, so as to provide an upward constant pulling force to the linkage member located on the second side.

8. The synchronous lifting mechanism for suspending a DR machine according to claim 7, characterized in that: The constant force output component is a spring balancer or a pneumatic balancer.

9. The synchronous lifting mechanism for suspending a DR machine according to claim 1, characterized in that: It also includes multiple protective covers, two adjacent protective covers are slidably connected to each other, one end of the outermost protective cover is fixedly set on the frame, when in the storage state, the protective covers are stacked in sequence, and when in the extended state, the protective covers are covered on the linkage member one by one.

10. A suspended DR machine, characterized in that: include: A synchronous lifting mechanism for suspending a DR machine according to any one of claims 1 to 9; and a translation mechanism, wherein the translation mechanism is connected to the frame and is used to drive the overall movement of the synchronous lifting mechanism used to suspend the DR machine.

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