Angle adjusting mechanism, medical trolley and medical ultrasonic system

Abstract

The invention provides an angle adjusting mechanism, a medical trolley and a medical ultrasonic system. The angle adjusting mechanism comprises a fixed part, a rotating part and a connecting assembly, the rotating part is connected with the fixed part through the connecting assembly, the connecting assembly comprises a connecting shaft and a rotation limiting structure, and the rotating part is hinged to the fixed part through the connecting shaft so as to rotate around the connecting shaft relative to the fixed part; the rotating piece rotates within a specified angle relative to the fixed piece through the rotating limiting structure; the rotation limiting structure comprises a limiting groove, a limiting shaft and a force transmission piece, the limiting shaft penetrates through the limiting groove, the force transmission piece transmits acting force towards the limiting shaft in the direction perpendicular to the axial direction of the limiting shaft so as to drive the limiting shaft to move in the limiting groove, the limiting groove is provided with at least two locking positions, and when the limiting shaft moves to the locking positions, the limiting shaft is locked. Rotation of the rotating member relative to the fixed member is limited. According to the angle adjusting mechanism, angle adjusting and locking are achieved, and when the angle adjusting mechanism is used, the use experience is better.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to an angle adjustment mechanism, a medical trolley and a medical ultrasound system. Background Art

[0002] Medical staff often use medical carts to carry and assist in the movement of medical equipment such as ultrasound diagnostic systems. These carts typically feature a support table on which medical equipment can be placed. Depending on the usage scenario, medical staff may have varying requirements for the support table's tilt angle. Therefore, medical carts require an angle adjustment mechanism to accommodate these requirements.

[0003] In existing medical trolleys, some angle adjustment mechanisms lock the angle through friction after completing the angle adjustment. After the angle is locked, the support platform can only bear a very small load; some angle adjustment mechanisms use driving elements such as hydraulic cylinders to achieve the angle adjustment of the support platform. Such angle adjustment mechanisms are too complex in structure, occupy a large space, and are expensive; in other angle adjustment mechanisms, it is necessary to manually insert and remove the locking component at the rotation position to achieve angle locking or adjustment, which is very inconvenient to operate. In summary, medical staff have a very poor user experience when using the angle adjustment mechanism of existing medical trolleys, and there is an urgent need for an angle adjustment mechanism to improve the user experience of medical staff. Summary of the Invention

[0004] In order to at least partially solve the problems existing in the prior art, the present invention provides an angle adjustment mechanism. The angle adjustment mechanism includes a fixed member, a rotating member, and a connecting assembly. The rotating member is connected to the fixed member via the connecting assembly. The connecting assembly includes a connecting shaft and a rotation limiting structure. The rotating member is hinged to the fixed member via the connecting shaft so as to be rotatable relative to the fixed member around the connecting shaft. The rotating member rotates within a specified angle relative to the fixed member via the rotation limiting structure. The rotation limiting structure includes a limiting groove, a limiting shaft, and a force transmission member. The limiting shaft is disposed in the limiting groove. The force transmission member transmits a force toward the limiting shaft in a direction perpendicular to the axial direction of the limiting shaft to drive the limiting shaft to move within the limiting groove. The limiting groove has at least two locking positions. When the limiting shaft moves to the locking position, the rotating member is restricted from rotating relative to the fixed member.

[0005] The angle adjustment mechanism provided by the present invention has a rotating member hinged to a fixed member via a connecting shaft and rotatable relative to the fixed member about the connecting shaft. When the rotating member rotates to a suitable angle relative to the fixed member, a rotation limit structure can lock the relative angle between the rotating member and the fixed member. Specifically, when the limit shaft is in the locking position within the limit groove, the rotating member cannot rotate relative to the fixed member, thus achieving angle locking. Under the action of the force transmission member, the limit shaft moves within the limit groove and leaves the locking position, allowing the rotating member to rotate relative to the fixed member, thus completing angle adjustment. The limit shaft returns to the locking position within the limit groove, thus achieving angle relocking. Different angle locks can be achieved for different locking positions, thus achieving angle adjustment and locking. Furthermore, when the angle adjustment mechanism is in the angle locking state, the limit shaft is in the locking position within the limit groove, and the position of the limit shaft is not easily changed. This angle locking is a rigid locking, and the angle adjustment mechanism in the angle locking state can bear a large load. Furthermore, during operation, such an angle adjustment mechanism only requires applying an external force to the force-transmitting member, such as pulling the force-transmitting member, to adjust the relative angle between the rotating member and the fixed member, making operation very simple and convenient. The angle adjustment mechanism is also structurally simple, cost-effective, and easy to manufacture. Medical staff experience a better user experience when using such an angle adjustment mechanism.

[0006] Exemplarily, the limiting groove includes a first groove provided on the rotating member and a second groove provided on the fixed member, or the limiting groove includes a first groove provided on the fixed member and a second groove provided on the rotating member, wherein the locking position is formed on the first groove, and when the limiting shaft leaves the locking position, the limiting shaft moves in the first groove and the second groove.

[0007] Exemplarily, the first groove includes a sliding segment and at least two locking segments, the at least two locking segments are connected by the sliding segment, and the locking position is formed on the locking segment.

[0008] Exemplarily, the second slot is a linear slot, the locking segment is a linear slot, and for each locking segment, there is at least one relative angle between the rotating member and the fixed member, so that the locking segment is parallel to the second slot.

[0009] Exemplarily, the sliding segment is an arc-shaped groove, and the at least two locking segments are located on the same side of the sliding segment.

[0010] Exemplarily, the rotating member includes a first mounting plate that can support external objects and two first connecting plates respectively arranged on opposite ends of the first mounting plate; the fixed member includes a second mounting plate that can be mounted to the outside and two second connecting plates respectively arranged on opposite ends of the second mounting plate; wherein the connecting shaft passes through the first connecting plate and the second connecting plate.

[0011] Exemplarily, the limit shaft is connected to a reset assembly, and the reset assembly resets the limit shaft when the force transmitted by the force transmission member is cancelled.

[0012] Exemplarily, the reset assembly includes a mounting seat, a connecting plate and a reset member, the mounting seat is arranged on the second mounting plate, one end of the reset member is connected to the mounting seat, and the other end is connected to the connecting plate, and the connecting plate is fixedly connected to the limit shaft.

[0013] Exemplarily, a connecting groove is provided on the limiting shaft, the force transmission member passes through the connecting groove and the end portion abuts against the connecting groove or is fixed to the connecting plate.

[0014] Exemplarily, both ends of the connecting shaft pass through the first connecting plate and the second connecting plate in sequence respectively.

[0015] Exemplarily, the angle adjustment mechanism includes a torsion assembly connected to the connecting shaft for providing rotational resistance to the rotating member.

[0016] Exemplarily, the torsion assembly includes a limiting cap, a disc spring and a locking nut. The connecting shaft has a first end and a second end that pass through the second connecting plate. The limiting cap is arranged on the first end. The disc spring is provided on the connecting shaft between the limiting cap and the second connecting plate. A locking nut is provided on the second end. The locking nut is used to adjust the length of the second end.

[0017] Exemplarily, the connecting shaft has a middle portion located between the two first connecting plates, a sleeve is sleeved on the middle portion, and both ends of the sleeve abut against the first connecting plates.

[0018] Exemplarily, a torsion spring is provided on the sleeve, and the torsion spring provides support for the rotating member in a direction opposite to the direction of gravity.

[0019] Exemplarily, at a location where the connecting shaft passes through the first connecting plate and the second connecting plate, the first connecting plate abuts against the second connecting plate via a friction plate.

[0020] Exemplarily, a bushing is provided on the limiting shaft at a position in contact with the limiting groove, and the bushing is rotatable relative to the limiting shaft.

[0021] According to another aspect of the present invention, a medical trolley is provided, comprising a support platform, a column and any angle adjustment mechanism as described above, wherein the support platform is connected to a rotating member, and a fixing member is mounted on the top of the column.

[0022] Exemplarily, the support platform is provided with an operating handle, the operating handle is provided with a control button, one end of the force transmission member is connected to the limit shaft, and the other end is connected to the control button.

[0023] According to another aspect of the present invention, a medical ultrasound system is provided. The medical ultrasound system includes a portable ultrasound device and any one of the medical trolleys described above, wherein the portable ultrasound device is disposed on a tabletop of a support table.

[0024] This summary introduces a series of simplified concepts that will be further described in the detailed description. This summary is not intended to limit the key features and essential features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0025] The advantages and features of the present invention are described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The following drawings of the present invention are hereby incorporated into the present invention for understanding the present invention. The drawings show embodiments of the present invention and their descriptions, and are used to explain the principles of the present invention. In the drawings,

[0027] Figure 1 A perspective view of a medical trolley according to an exemplary embodiment of the present invention viewed from one direction;

[0028] Figure 2 for Figure 1 A perspective view of the medical trolley shown as viewed from another direction;

[0029] Figure 3 A perspective view of an angle adjustment mechanism according to an exemplary embodiment of the present invention viewed from one direction;

[0030] Figure 4 for Figure 3 A perspective view of the angle adjustment mechanism as viewed from another direction;

[0031] Figure 5 for Figure 3 An exploded view of the angle adjustment mechanism shown;

[0032] Figure 6A is a schematic diagram of a first slot according to an exemplary embodiment of the present invention (1);

[0033] Figure 6B is a schematic diagram of a first slot according to an exemplary embodiment of the present invention (II);

[0034] Figure 7A FIG1 is a partially enlarged view of a limiting shaft according to an exemplary embodiment of the present invention (I);

[0035] Figure 7B is a partially enlarged view (2) of a limiting shaft according to an exemplary embodiment of the present invention; and

[0036] Figure 8 FIG. 1 is a partially enlarged view of a medical trolley according to an exemplary embodiment of the present invention.

[0037] The above drawings include the following reference numerals:

[0038] 10. Angle adjustment mechanism; 100. Rotating member; 110. First mounting plate; 120. First connecting plate; 200. Fixing member; 210. Second mounting plate; 220. Second connecting plate; 300. Connecting shaft; 310. Sleeve; 311. Torsion spring; 400. Rotation limiting structure; 410. Limiting groove; 411. First groove; 4111. Sliding section; 4112. Locking section; 412. Second groove; 420. Limiting shaft; 421. Connecting groove; 422. Mounting mating hole; 4 23. Bushing; 424. Annular sleeve; 425. Open retaining ring; 430. Force transmission member; 431. End; 500. Reset assembly; 510. Mounting seat; 511. Mounting column; 520. Connecting plate; 521. Mounting hole; 530. Reset member; 600. Torque assembly; 610. Limiting cap; 620. Disc spring; 630. Locking nut; 20. Medical trolley; 21. Column; 700. Operating handle; 710. Control button; 800. Support platform; 900. Friction plate. DETAILED DESCRIPTION

[0039] In the following description, a large amount of detail is provided to facilitate a thorough understanding of the present invention. However, it will be appreciated by those skilled in the art that the following description merely illustrates preferred embodiments of the present invention, and that the present invention may be practiced without one or more of these details. Furthermore, to avoid confusion with the present invention, some technical features well known in the art have not been described in detail.

[0040] See also Figure 1 and Figure 2 The present invention provides an angle adjustment mechanism 10. The angle adjustment mechanism 10 provided by the present invention can be applied to any suitable equipment, including but not limited to a medical trolley 20. Therefore, according to another aspect of the present invention, a medical trolley 20 is provided.

[0041] See also Figure 3 and Figure 4The angle adjustment mechanism 10 may include a fixed member 200, a rotating member 100 and a connecting assembly, and the rotating member 100 may be connected to the fixed member 200 via the connecting assembly. The rotating member 100 and the fixed member 200 may be of any suitable form. Typically, the rotating member 100 may have a first mounting plate 110, which may carry an external medical device, and the fixed member 200 may have a second mounting plate 210, which may be mounted to the outside, so that the angle adjustment mechanism 10 may be mounted to the outside, for example, to any suitable position of the medical trolley 20. The connecting assembly may include a connecting shaft 300 and a rotation limiting structure 400. The rotating member 100 may be hinged to the fixed member 200 via the connecting shaft 300 so as to be rotatable relative to the fixed member 200 around the connecting shaft 300. The rotating member 100 and the fixed member 200 may each have a connecting plate, and the connecting shaft 300 is provided through these connecting plates to enable the rotating member 100 to be hinged to the fixed member 200 so as to be rotatable relative to the fixed member 200 about the connecting shaft 300. Of course, the form in which the rotating member 100 is hinged to the fixed member 200 via the connecting shaft 300 so as to be rotatable relative to the fixed member 200 about the connecting shaft 300 may also be various other forms. For example, the connecting shaft 300 may be provided on the fixed member 200, and the rotating member 100 may have a mounting portion that can be sleeved on the connecting shaft 300, thereby enabling the rotating member 100 to be hinged to the fixed member 200 and rotatable relative to the fixed member 200 about the connecting shaft 300.

[0042] The rotating member 100 can rotate within a specified angle relative to the fixed member 200 via the rotation limiting structure 400. The rotating member 100 is hinged to the fixed member 200 via the connecting shaft 300, allowing the rotating member 100 to rotate relative to the fixed member 200 around the connecting shaft 300. However, the rotation limiting structure 400 can limit the rotation of the rotating member 100, so that although the rotating member 100 can rotate relative to the fixed member 200, it can only rotate within a certain angle range.

[0043] The rotation limiting structure 400 may include a limiting groove 410, a limiting shaft 420, and a force transmission member 430. The force transmission member 430 may be in various forms, such as a rope, a connecting rod, or a Bowden cable, capable of transmitting an applied force. Typically, the force transmission member 430 may be capable of transmitting a tensile force. Pulling the force transmission member 430 can transmit the tensile force to the limiting shaft 420. The limiting shaft 420 is disposed through the limiting groove 410 and can move within the limiting groove 410, so that the limiting shaft 420 can have multiple positions within the limiting groove 410. The limiting groove 410 may have a certain thickness, but since the axial length of the limiting shaft 420 is much greater than the thickness of the limiting groove 410, it can be considered that the limiting groove 410 is located on a single surface. The thickness of the limiting groove 410 will be ignored in the following description. The limiting groove 410 may be a groove in the form of an opening on a plane or a groove in the form of a curved opening in a three-dimensional space. This is not limited in this application. Preferably, when the limiting groove 410 is an open groove on a plane, the overall structure is simpler and more stable. For ease of description, the following description will take the limiting groove 410 as an open groove on a plane as an example. The limiting groove 410 can have any suitable shape. The force transmission member 430 transmits a force toward the limiting shaft 420 in a direction perpendicular to the axial direction of the limiting shaft 420 to drive the limiting shaft 420 to move in the limiting groove 410. The plane where the limiting groove 410 is located and the axial direction of the limiting shaft 420 can have any angle. Preferably, the plane where the limiting groove 410 is located can be perpendicular to the axial direction of the limiting shaft 420. The limiting groove 410 can have at least two locking positions. When the limiting shaft 420 moves to the locking position, the rotation of the rotating member 100 relative to the fixed member 200 is restricted. The locking positions on the limiting groove 410 can be two, three or any number. When the limiting shaft 420 is in the locked position, it restricts the rotation of the rotating member 100 relative to the fixed member 200. At this time, the angle adjustment mechanism 10 is in the angle locked state. When the force transmission member 430 transmits a force toward the limiting shaft 420 in a direction perpendicular to the axis of the limiting shaft 420, driving the limiting shaft 420 to move within the limiting groove 410, the limiting shaft 420 leaves the locked position, allowing the rotating member 100 to rotate relative to the fixed member 200. At this time, the angle adjustment mechanism 10 is in the angle adjustment state. After the rotating member 100 rotates a certain angle relative to the fixed member 200, the force on the force transmission member 430 is removed, and the limiting shaft 420 reaches the next locked position. The rotating member 100 is no longer able to rotate relative to the fixed member 200. At this time, the angle adjustment mechanism 10 is in the angle locked state, and the angle of the rotating member 100 relative to the fixed member 200 has changed, thereby achieving angle adjustment and locking of the rotating member 100 relative to the fixed member 200. The limiting groove 410 can be of any form and can be located in any suitable position.For example, the limiting groove 410 may include a first groove in a "C" shape and a second groove in a straight line. The first groove in the "C" shape may be provided on the rotating member 100, and the second groove in the straight line may be provided on the fixed member 200. Among them, the first groove has an adjustment section corresponding to the vertical line on the "C", and two locking ends corresponding to the other side of the adjustment section on the "C". One end of the limiting shaft 420 located in the second groove in the straight line and located at the locking end in the first groove in the "C" shape, when the limiting shaft 420 is located at the locking position of the limiting groove 410, and the other end of the limiting shaft 420 located in the second groove in the straight line and located at the adjustment section in the first groove in the "C" shape, the limiting shaft 420 is in a state of leaving the locking position, and the angle adjustment mechanism 10 is in an angle adjustment state. Among them, when the force transmitting member 430 transmits a force to the limiting shaft 420, the limiting shaft 420 can move from one end of the second groove in the straight line to the other end, and move from the locking end of the first groove in the "C" shape to the adjustment section. When the external force on the force transmitting member 430 is removed, the limiting shaft 420 returns from the other end of the second groove in the straight line to "one end of the second groove in the straight line", and moves from the adjustment section of the first groove in the "C" shape to the locking end.

[0044] For the angle adjustment mechanism 10 provided by the present invention, the rotating member 100 is hinged to the fixed member 200 through the connecting shaft 300 and can rotate relative to the fixed member 200 around the connecting shaft 300. When the rotating member 100 rotates relative to the fixed member 200 to an appropriate angle, the rotating limiting structure 400 can lock the relative angle between the rotating member 100 and the fixed member 200. Among them, when the limiting shaft 420 is located at the locking position in the limiting groove 410, the rotating member 100 cannot rotate relative to the fixed member 200, that is, the angle is locked. Under the action of the force transmitting member 430, the limiting shaft 420 moves in the limiting groove 410 and leaves the locking position, and the rotating member 100 can rotate relative to the fixed member 200. At this time, the angle can be adjusted. When the limiting shaft 420 returns to the locking position in the limiting groove 410 again, the angle is re-locked. Different angle locks can be completed for different locking positions. Such an angle adjustment mechanism 10 realizes the adjustment and locking of the angle. And, when the angle adjustment mechanism 10 is in the angle locking state, the limiting shaft 420 is located at the locking position in the limiting groove 410, and the position of the limiting shaft 420 is not easy to change. Such an angle lock belongs to a rigid lock, and the angle adjustment mechanism 10 in the angle locking state can bear a large load. In addition, during the operation of such an angle adjustment mechanism 10, only an external force needs to be applied to the force transmitting member 430, for example, the force transmitting member 430 can be pulled, and the relative angle between the rotating member 100 and the fixed member 200 can be adjusted. The operation is very simple and convenient. Such an angle adjustment mechanism 10 also has a very simple structure, lower cost, and is easy to produce. When medical staff use such an angle adjustment mechanism 10, the use experience is better.

[0045] In one embodiment of the present invention, see Figure 5 、 Figure 6A and Figure 6B The limiting groove 410 includes a first groove 411 provided on the rotating member 100 and a second groove 412 provided on the fixed member 200. The locking position is formed in the first groove 411. When the limiting shaft 420 leaves the locking position, the limiting shaft 420 moves within the first groove 411 and the second groove 412. The limiting shaft 420 is located in the limiting groove 410. In fact, the limiting shaft 420 is located in both the first groove 411 and the second groove 412. It can be considered that the limiting shaft 420 is respectively provided through the first groove 411 and the second groove 412, that is, the limiting shaft 420 is respectively provided through the rotating member 100 and the fixed member 200. Since the rotating member 100 is hinged to the fixed member 200 through the connecting shaft 300, the rotating member 100 and the fixed member 200 can rotate relative to each other but cannot move relative to each other. The limiting groove 410 includes a first groove 411 provided on the rotating member 100 and a second groove 412 provided on the fixed member 200. The locking position is provided on the first groove 411. When the limiting shaft 420 leaves the locking position in the first groove 411, the limiting shaft 420 moves in the first groove 411, and the limiting shaft 420 and the first groove 411 are relatively displaced. At this time, if the limiting shaft 420 and the first groove 411 are relatively displaced, The trajectory of the relative displacement between the limiting shaft 420 and the first slot 411 is an arc around the connecting shaft 300, so the locking position is on this arc, which obviously does not satisfy the requirement that "when the limiting shaft 420 moves to the locking position, the rotation of the rotating member 100 relative to the fixed member 200 is restricted". Therefore, the relative displacement between the limiting shaft 420 and the first slot 411 is the relative displacement between the limiting shaft 420 and the rotating member 100. Considering that the rotating member 100 and the fixed member 200 can only rotate relative to each other but not displace relative to each other, the limiting shaft 420 and the fixed member 200 also undergo relative displacement, that is, the limiting shaft 420 also moves within the second slot 412. It can be seen from this that when the limiting shaft 420 leaves the locking position, the limiting shaft 420 moves within the first slot 411, and although the locking position is on the first slot 411, the limiting shaft 420 should also be able to move within the second slot 412. At this time, the second slot 412 can guide the limiting shaft 420 to move along a suitable path through reasonable design.

[0046] After the limit shaft 420 leaves the locking position in the first groove 411, it can reach a special position. When the limit shaft 420 is in the special position, the limit shaft 420 can move within the first groove 411 while remaining stationary relative to the second groove 412. The limit groove 410 includes a first groove 411 provided on the rotating member 100 and a second groove 412 provided on the fixed member 200. The limit shaft 420 has a locking position within the first groove 411, and the limit shaft 420 located at the locking position is stationary relative to both the first groove 411 and the second groove 412; when the limit shaft 420 leaves the locking position, the limit shaft 420 moves within the first groove 411 and the second groove 412; in addition, when the limit shaft 420 is at the special position, it can move within the first groove 411 while remaining stationary relative to the second groove 412, which means that when the limit shaft 420 is at the special position, the rotating member 100 can rotate relative to the fixed member 200; thus, such an angle adjustment mechanism 10 can achieve angle adjustment and locking, and the overall structure is very simple, easy to manufacture and implement. It can be understood that the first groove 411 and the second groove 412 here are only for distinction, and the limit groove 410 can also include a first groove 411 provided on the fixed member 200 and a second groove 412 provided on the rotating member 100. Similar to the above content, it will not be elaborated here.

[0047] For example, as Figure 5 and Figure 6A shown in the embodiment, the first groove 411 can include a sliding section 4111 and at least two locking sections 4112. The at least two locking sections 4112 can be connected by the sliding section 4111. When the limit shaft 420 is located within such a first groove 411, it can move from any one of the locking sections 4112 to the sliding section 4111 and can move from the sliding section 4111 to any one of the locking sections 4112. The trajectory defined by such a first groove 411 is similar to a "C" shape. For specific reference, see Figure 5 , the second groove 412 can be a straight groove. For the convenience of description, Figure 5In the illustrated embodiment, the end of the second groove 412 in the form of a straight groove, which is far from the connecting shaft 300, is the distal end, and the end of the second groove 412 in the form of a straight groove, which is close to the connecting shaft 300, is the proximal end. The locking position can be formed on the locking section 4112. When no external force is applied to the force transmission member 430, the limiting shaft 420 is located within the locking section 4112, and the limiting shaft 420 is located at the distal end of the second groove 412. At this time, restricted by the limiting shaft 420, the rotating member 100 cannot rotate relative to the fixed member 200, and the angle adjustment mechanism 10 is in an angle locking state at this time. When an external force is applied to the force transmission member 430, for example, by pulling the force transmission member 430, the limiting shaft 420 moves within the limiting groove 410, that is, the limiting shaft 420 moves from the locking section 4112 to the sliding section 4111, and the limiting shaft 420 moves from the distal end of the second groove 412 to the proximal end of the second groove 412. At this time, the limiting shaft 420 can move within the sliding section 4111, but the limiting shaft 420 is restricted by the second groove 412 and cannot move in the direction perpendicular to the second groove 412, which enables the sliding section 4111 to move relative to the limiting shaft 420, that is, enables the rotating member 100 to rotate relative to the limiting shaft 420. Since the limiting shaft 4,20 is relatively stationary with respect to the second groove 412 in the moving direction of the sliding section 4111, the rotation of the rotating member 100 relative to the fixed member 200 is realized. After the rotating member 100 rotates relative to the fixed member 200 by a certain angle, the external force on the force transmission member 430 is removed, or the force transmission member 430 can be pushed, so that the limiting shaft 420 moves from the proximal end to the distal end within the second groove 412, and moves from the sliding section 4111 to another locking section 4112 within the first groove 411. Thus, the relative angle of the rotating member 100 relative to the fixed member 200 is re-locked, and during this entire process, the angle adjustment and locking of the angle adjustment mechanism 10 are realized. The first groove 411 is a "U"-shaped limiting groove 410 structure, which is simpler and easier to implement.

[0048] See Figure 6B , there can be three locking sections 4112 within the first groove 411. At this time, there are three locking positions within the limiting groove 410. The process of angle adjustment and locking of such an angle adjustment mechanism 10 is similar to the above content and will not be elaborated here. There can be multiple locking positions within the first groove 411 with multiple locking sections 4112. For example, for the first groove 411 with four locking sections 4112, such a limiting groove 410 can have four locking positions. That is to say, when the number of locking sections 4112 within the first groove 411 is more, the number of angles at which the angle adjustment mechanism 10 can perform angle locking is also more.

[0049] The second slot 412 may be a linear slot, and the locking section 4112 may be a linear slot. For each locking section 4112, there may be at least one relative angle between the rotating member 100 and the fixed member 200, such that the locking section 4112 is parallel to the second slot 412. The movement path of the limiting shaft 420 within the linear second slot 412 is a linear path, and the movement path of the limiting shaft 420 within the linear locking section 4112 is also a linear path. When the limiting shaft 420 leaves the locked position, it moves linearly within the first slot 411 to the sliding section 4111, and then moves linearly from the distal end to the proximal end within the second slot 412. At this time, the locking section 4112 is parallel to the second slot 412. The limiting shaft 420 can simultaneously move linearly within the first slot 411 to the sliding section 4111, and then move linearly from the distal end to the proximal end within the second slot 412 by moving in a straight line. In this way, the movement of the limiting shaft 420 from the locked position can be smoother. Typically, the force transmission member 430 can be pulled to move the limit shaft 420 away from the locked position. That is, in such an angle adjustment mechanism 10, the external force required to pull the force transmission member 430 to move the limit shaft 420 away from the locked position is smaller, which saves more effort when adjusting the angle, and provides a better user experience for medical workers.

[0050] The sliding section 4111 may be an arcuate groove, and the at least two locking sections 4112 may be located on the same side of the sliding section 4111. When the at least two locking sections 4112 are located on opposite sides of the sliding section 4111, the operation of moving the limiting shaft 420 from the locking section 4112 to the sliding section 4111 and then from the sliding section 4111 to the other locking section 4112 is overly complicated and very unstable, and angle adjustment failure is likely to occur. The first groove 411 in which the at least two locking sections 4112 are located on opposite sides of the sliding section 4111 is also difficult to manufacture and is not easy to implement. When the limiting shaft 420 is located in the sliding section 4111, the rotating member 100 can rotate relative to the fixed member 200. At this time, the first groove 411 will move relative to the limiting shaft 420, that is, the sliding section 4111 moves relative to the limiting shaft 420. Since the rotating member 100 rotates around the connecting shaft 300 relative to the fixed member 200, and the distance between the limiting shaft 420 and the connecting shaft 300 is fixed at this time, it is necessary that the distance between the position of the limiting shaft 420 in the sliding section 4111 and the connecting shaft 300 remains fixed at all times during the movement of the sliding section 4111. Naturally, the sliding section 4111 should be designed as an arc-shaped groove. With such a sliding section 4111, the rotating member 100 can rotate more smoothly relative to the fixed member 200, and the angle adjustment mechanism 10 can also be smoother when performing angle adjustment.

[0051] In one embodiment of the present invention, see Figure 3 、 Figure 4 and Figure 5The rotating member 100 can include a first mounting plate 110 capable of supporting external objects and two first connecting plates 120 disposed at opposite ends of the first mounting plate 110. The first mounting plate 110 can be designed in any desired form. For example, the support platform 800 of the medical trolley 20 can be mounted on the first mounting plate 110, and the portable ultrasound device can be placed or removably mounted on the surface of the support platform 800. When the support platform 800 is used to support the portable ultrasound device, the first mounting plate 110 can have a suitable form and size. Typically, the first mounting plate 110 can be a flat plate, but this application does not exclude the possibility of the first mounting plate 110 being a curved plate or other various forms. In the illustrated embodiment, the first mounting plate 110 can be a rectangular panel. In other embodiments not shown, the first mounting plate 110 can be designed in any desired shape. First connecting plates 120 are disposed at opposite ends of the first mounting plate 110. Similarly, the first connecting plates 120 can be designed in any desired form. Preferably, the first connecting plates 120 are flat plates perpendicular to the first mounting plate 110.

[0052] The fixing member 200 may include a second mounting plate 210 that can be mounted to the outside and two second connecting plates 220 respectively provided on opposite ends of the second mounting plate 210. The second mounting plate 210 may be in any form that is easy to mount to the outside. For example, when the angle adjustment mechanism 10 is used for a medical trolley 20, the second mounting plate 210 may be in a form that is easy to connect to the medical trolley 20. In the illustrated embodiment, the second mounting plate 210 may be rectangular. In other embodiments not shown, the second mounting plate 210 may be designed into any shape as needed. Second connecting plates 220 are provided on opposite ends of the second mounting plate 210. Similarly, the second connecting plates 220 may be designed into any form as needed. Preferably, the second connecting plate 220 may be in the form of a flat plate perpendicular to the second mounting plate 210.

[0053] The connecting shaft 300 can pass through the first connecting plate 120 and the second connecting plate 220, so that the rotating member 100 is hinged to the fixed member 200 via the connecting shaft 300 and can rotate relative to the fixed member 200 around the connecting shaft 300. Such an angle adjustment mechanism 10 has a simpler structure.

[0054] In one embodiment of the present invention, see Figure 3 、 Figure 4 and Figure 5The limit shaft 420 may be connected to a reset assembly 500, which resets the limit shaft 420 when the force transmitted by the force transmission member 430 is removed. Typically, the force transmission member 430 is pulled to release the limit shaft 420 from the locked position, and then pushed to return the limit shaft 420 to the locked position. The reset assembly 500 allows the limit shaft 420 to be released from the locked position and the angle adjustment completed by removing the external force on the force transmission member 430. This allows the limit shaft 420 to return to the locked position under the action of the reset assembly 500, thus completing the angle locking. The reset assembly 500 may reset the limit shaft 420 through magnetic attraction, spring force, or other various other methods.

[0055] See Figure 5 The reset assembly 500 may include a mounting seat 510, a connecting plate 520, and a reset member 530. The mounting seat 510 may be fixedly mounted on the second mounting plate 210 by threaded connection or various other forms. One end of the reset member 530 may be connected to the mounting seat 510, and the other end may be connected to the connecting plate 520. There may be multiple reset members 530, and a mounting post 511 may be provided on the mounting seat 510. The reset member 530 may be a spring. The reset member 530 may be sleeved on the mounting post 511. For multiple reset members 530, the mounting seat 510 may be provided with multiple mounting posts 511, and the multiple mounting posts 511 may correspond one-to-one to the multiple reset members 530. The mounting post 511 may be passed through the connecting plate 520, and the connecting plate 520 may be movable relative to the mounting post 511. The connecting plate 520 can be fixedly connected to the limiting shaft 420 and can move synchronously with the limiting shaft 420. In the illustrated embodiment, the connecting plate 520 is provided with a mounting hole 521, and the limiting shaft 420 is provided with a mounting mating hole 422 corresponding to the mounting hole 521. Fasteners are inserted through the mounting hole 521 and the mounting mating hole 422 to securely connect the connecting plate 520 to the limiting shaft 420. Such a simple structure of the reset assembly 500 also makes the structure of the angle adjustment mechanism 10 simpler and reduces the cost.

[0056] See Figure 5The limiting shaft 420 may be provided with a connecting groove 421, and the force transmission member 430 may pass through the connecting groove 421 and the end 431 may abut against the connecting groove 421 or be fixed to the connecting plate 520. In the illustrated embodiment, the force transmission member 430 has a small hammer-shaped end 431. The portion near the end 431 of the force transmission member 430 passes through the connecting groove 421, and the small hammer-shaped end 431 will abut against the outside of the connecting groove 421. When the force transmission member 430 is pulled, the end 431 will drive the limiting shaft 420 to move synchronously. In an embodiment not shown, the end 431 of the force transmission member 430 may also be fixedly connected to the connecting plate 520 by various means such as clamping, welding or threaded connection. Since the connecting plate 520 is fixedly connected to the limiting shaft 420, pulling the force transmission member 430 will also drive the limiting shaft 420 to move synchronously. Such an angle adjustment mechanism 10 has a simple overall structure, is very stable when transmitting the applied force, and has a stronger overall structural stability. Compared with the case where the end 431 of the force transmission member 430 is fixedly connected to the connecting plate 520 , the angle adjustment mechanism 10 in which the end 431 of the force transmission member 430 abuts against the connecting groove 421 has a simpler structure and is easier to disassemble, repair or replace.

[0057] In one embodiment of the present invention, see Figure 3 、 Figure 4 and Figure 5 The two ends of the connecting shaft 300 can respectively pass through the first connecting plate 120 and the second connecting plate 220 in sequence. The two first connecting plates 120 are both located inside the accommodation space enclosed by the two second connecting plates 220. In such an angle adjustment mechanism 10, the fixed member 200 can protect at least part of the rotating member 100. Moreover, the fixed member 200 is usually fixedly mounted to the outside, and the rotating member 100 needs to rotate relative to the fixed member 200. In such an angle adjustment mechanism 10, the rotation of the rotating member 100 relative to the fixed member 200 is not easily affected by external factors, and the overall structure is more stable.

[0058] The angle adjustment mechanism 10 may include a torsion assembly 600, which may be connected to the connecting shaft 300 to provide rotational resistance to the rotating member 100. The first mounting plate 110 of the rotating member 100 may generally be connected to the support platform 800 of the medical trolley 20. The surface of the support platform 800 may support external medical equipment, such as a portable ultrasound device that may be placed on the surface of the support platform 800, or the portable ultrasound device may be detachably mounted to the surface of the support platform 800. When the rotating member 100 is required to rotate relative to the fixed member 200, the limit shaft 420 leaves the locked position under the action of the force transmission member 430, and the rotating member 100 rapidly moves downward under the action of the gravity of the support platform 800 and the external medical equipment. The provision of the torque assembly 600 can increase the rotational resistance of the rotating member 100 during rotation. This means that after the limit shaft 420 leaves the locked position under the action of the force transmission member 430, the speed at which the rotating member 100 rotates downward under the weight of the support platform 800 and the external medical device can be reduced, providing a better user experience for medical workers. The torque assembly 600 can provide a preset upward rotation torque to the rotating member 100, or it can take other various forms.

[0059] See Figure 5 The torque assembly 600 may include a limiting cap 610, a disc spring 620, and a locking nut 630. The connecting shaft 300 may have a first end and a second end that pass through the second connecting plate 220. The first and second ends are merely distinguishable and are not specifically limited. The limiting cap 610 may be disposed on the first end. The disc spring 620 may be disposed between the limiting cap 610 and the second connecting plate 220 on the connecting shaft 300. A locking nut 630 may be disposed on the second end. The locking nut 630 may be threadedly engaged with the second end. By rotating the locking nut 630, the length of the second end of the connecting shaft 300 that passes through the second connecting plate 220 can be adjusted. When the locking nut 630 increases the length of the second end, the length of the first end will correspondingly decrease. At this time, the limiting cap 610 will compress the disc spring 620, which will also generate greater rotational resistance for the rotation of the connecting shaft 300. With such an angle adjustment mechanism 10 , the rotational resistance of the connecting shaft 300 can be adjusted, so that in different usage scenarios, the rotating member 100 will not suddenly rotate downward after the limiting shaft 420 leaves the locking position.

[0060] The connecting shaft 300 may have a middle portion located between the two first connecting plates 120. A sleeve 310 may be mounted on the middle portion, and both ends of the sleeve 310 may abut against the first connecting plates 120. Turning the lock nut 630 inevitably reduces the distance between the two second connecting plates 220, potentially damaging the second connecting plates 220 in some cases. The sleeve 310, with both ends abutting against the first connecting plates 120, can prevent the distance between the two second connecting plates 220 from further decreasing after the two second connecting plates 220 respectively contact the two first connecting plates 120, thereby preventing damage to the two second connecting plates 220. Moreover, in the embodiment where the first connecting plate 120 is abutted against the second connecting plate 220 through the friction plate 900, both ends of the sleeve 310 can abut against the first connecting plate 120, and the sleeve 310 forms a support for the second connecting plate 220 through the first connecting plate 120, so that the distance between the two second connecting plates 220 will not be changed when the locking nut 630 is rotated, thereby preventing damage to the second connecting plate 220 and enhancing the stability of the overall structure.

[0061] A torsion spring 311 may be provided on the sleeve 310 to provide support for the rotating member 100 in the opposite direction of gravity. The first mounting plate 110 of the rotating member 100 may typically be connected to the support platform 800 of the medical trolley 20, which may carry external medical equipment. When the rotating member 100 is required to rotate relative to the fixed member 200, after the limit shaft 420 leaves the locked position under the action of the force transmission member 430, the rotating member 100 will rapidly move downward under the action of the gravity of the support platform 800 and the external medical equipment. The provision of the torsion spring 311 provides support for the rotating member 100 in the opposite direction of gravity, thereby preventing the rotating member 100 from suddenly rotating downward after the limit shaft 420 leaves the locked position.

[0062] In one embodiment of the present invention, see Figure 5 Where the connecting shaft 300 passes through the first connecting plate 120 and the second connecting plate 220, the first connecting plate 120 abuts against the second connecting plate 220 via the friction plate 900. The friction plate 900 can be made of a wear-resistant material. In this case, the first connecting plate 120 and the second connecting plate 220 do not directly participate in friction, so the first connecting plate 120 and the second connecting plate 220 do not need to be made of wear-resistant material, which greatly reduces the difficulty of manufacturing the first connecting plate 120 and the second connecting plate 220.

[0063] In one embodiment of the present invention, see Figure 5 and Figure 7AA bushing 423 is provided on the limiting shaft 420 at the position where it contacts the limiting groove 410. The bushing 423 is rotatable relative to the limiting shaft 420. The bushing 423 can freely rotate relative to the limiting shaft 420, and the bushing 423 can freely move and rotate within the limiting groove 410. The provision of the bushing 423 can make the limiting shaft 420 move more smoothly within the limiting groove 410, providing a better user experience for medical workers.

[0064] In one embodiment of the present invention, see Figure 7B A shorter bushing 423 and an annular sleeve 424 can be provided at the position on the limiting shaft 420 that contacts the limiting groove 410. The annular sleeve 424 can rotate freely relative to the limiting shaft 420 and the bushing 423. The setting of the annular sleeve 424 can make the limiting shaft 420 slide more smoothly in the limiting groove 410.

[0065] In one embodiment of the present invention, see Figure 5 、 Figure 7A and Figure 7B An open retaining ring 425 may be provided at the outermost end of the limiting shaft 420. The provision of the open retaining ring 425 may prevent the limiting shaft 420 or the bushing 423 from falling off, thereby improving the stability of the overall structure.

[0066] According to another aspect of the present application, the present application also provides a medical trolley 20, see Figure 1 and Figure 2 The medical trolley 20 may include a support platform 800, a column 21, and any of the angle adjustment mechanisms 10 described above. The support platform 800 may be connected to the rotating member 100, and the fixing member 200 may be mounted to the top of the column 21. The support platform 800 may carry medical equipment, such as a portable ultrasound device, which may be placed on the surface of the support platform 800 or removably mounted to the surface of the support platform 800. Such a medical trolley 20 can achieve angle adjustment and locking of the support platform 800, providing a better user experience for medical workers.

[0067] See also Figure 8The support platform 800 can be provided with an operating handle 700, which can be of any suitable form. The operating handle 700 can be provided with a control button 710. One end of the force transmission member 430 can be connected to the limit shaft 420, and the other end can be connected to the control button 710. Pressing the control button 710 can generate a pulling force on the force transmission member 430, and then the force transmission member 430 can transmit the pulling force to the limit shaft 420, so that the angle adjustment mechanism 10 can be adjusted and locked. The specific process has been described in detail above and will not be repeated here. When adjusting the angle of the support platform 800 of such a medical trolley 20, pressing the control button 710 and simultaneously raising or lowering the operating handle 700, and then releasing the control button 710 can complete the angle adjustment and locking of the support platform 800. Medical workers can complete the operation with one hand, which provides a good user experience. Preferably, the force transmission member 430 can be located inside the medical trolley 20, so that the overall appearance of the medical trolley 20 is more consistent.

[0068] According to another aspect of this application, see Figure 1 and Figure 2 The present application also provides a medical ultrasound system, which may include a portable ultrasound device and any one of the medical trolleys 20 described above. The medical trolley 20 may include a support table 800, and the portable ultrasound device may be arranged on the table top of the support table 800. That is, the portable ultrasound device may be placed directly on the table top of the support table 800, or may be detachably installed on the table top of the support table 800.

[0069] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front", "back", "up", "down", "left", "right", "horizontal", "vertical", "vertical", "horizontal", "top", "bottom", etc. are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside" and "outside" refer to the inside and outside relative to the outline of each component itself.

[0070] For ease of description, area-relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the regional positional relationship between one or more components or features shown in the figures and other components or features. It should be understood that area-relative terms include not only the orientation of the components as described in the figures, but also different orientations in use or operation. For example, if the components in the drawings are inverted as a whole, the situation where the components are "above other components or features" or "above other components or features" will include the situation where the components are "below other components or structures" or "below other components or structures". Thus, the exemplary term "above" may include both the orientations "above" and "below". In addition, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this document is intended to include all of these situations.

[0071] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, parts, components and / or combinations thereof.

[0072] It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present invention described herein can be practiced in an order other than that illustrated or described herein.

[0073] The present invention has been described through the above-described embodiments. However, it should be understood that the above-described embodiments are for illustrative and illustrative purposes only and are not intended to limit the present invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments and that various variations and modifications may be made based on the teachings of the present invention, all of which fall within the scope of the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An angle adjustment mechanism, comprising a fixed member, a rotating member, and a connecting assembly, wherein the rotating member is connected to the fixed member through the connecting assembly. Characterized in that, The connecting assembly includes: A connecting shaft, the rotating member is hinged to the fixed member through the connecting shaft and is rotatable relative to the fixed member around the connecting shaft; and A rotation limiting structure, the rotating member rotates relative to the fixed member within a specified angle through the rotation limiting structure; Wherein, the rotation limiting structure includes a limiting groove, a limiting shaft, and a force transmission member. The limiting shaft passes through the limiting groove, and the force transmission member transmits a force toward the limiting shaft in a direction perpendicular to the axial direction of the limiting shaft to drive the limiting shaft to move in the limiting groove. The limiting groove has at least two locking positions. When the limiting shaft moves to the locking position, the rotation of the rotating member relative to the fixed member is restricted.

2. The angle adjustment mechanism according to claim 1, Characterized in that, The limiting groove includes a first groove provided on the rotating member and a second groove provided on the fixed member, or, the limiting groove includes a first groove provided on the fixed member and a second groove provided on the rotating member. Wherein, the locking position is formed on the first groove. When the limiting shaft leaves the locking position, the limiting shaft moves in the first groove and the second groove.

3. The angle adjustment mechanism according to claim 2, Characterized in that, The first groove includes a sliding section and at least two locking sections. The at least two locking sections are connected by the sliding section, and the locking position is formed on the locking section.

4. The angle adjustment mechanism according to claim 3, Characterized in that, The second groove is a straight groove, and the locking section is a straight groove. For each locking section, there is at least one relative angle between the rotating member and the fixed member such that the locking section is parallel to the second groove.

5. The angle adjustment mechanism according to claim 3, Characterized in that, The sliding section is an arc groove, and at least two locking sections are located on the same side of the sliding section.

6. The angle adjustment mechanism according to claim 1, Characterized in that, The rotating member includes a first mounting plate capable of carrying an external object and two first connecting plates respectively provided at opposite ends of the first mounting plate; The fixed member includes a second mounting plate that can be mounted to the outside and two second connecting plates respectively provided at opposite ends of the second mounting plate; Wherein, the connecting shaft passes through the first connecting plate and the second connecting plate.

7. The angle adjustment mechanism according to claim 6, Characterized in that, The limiting shaft is connected with a reset assembly, and the reset assembly resets the limiting shaft when the force transmitted by the force transmission member is withdrawn.

8. The angle adjustment mechanism according to claim 7, Characterized in that, The reset assembly includes a mounting seat, a connecting plate, and a reset member. The mounting seat is provided on the second mounting plate. One end of the reset member is connected to the mounting seat, and the other end is connected to the connecting plate. The connecting plate is fixedly connected to the limiting shaft.

9. The angle adjustment mechanism according to claim 8, characterized in that, a connection groove is provided on the limit shaft, and the force transmission member passes through the connection groove and the end thereof abuts against the connection groove or is fixed to the connection plate.

10. The angle adjustment mechanism according to claim 6, characterized in that, both ends of the connection shaft sequentially pass through the first connection plate and the second connection plate.

11. The angle adjustment mechanism according to claim 10, characterized in that, the angle adjustment mechanism includes a torsion assembly, and the torsion assembly is connected to the connection shaft for providing a rotational resistance to the rotating member.

12. The angle adjustment mechanism according to claim 11, characterized in that, the torsion assembly includes a limit cap, a disc spring and a locking nut. The connection shaft has a first end and a second end passing through the second connection plate. The limit cap is provided on the first end. The disc spring is sleeved on the connection shaft between the limit cap and the second connection plate. The locking nut is provided on the second end, and the locking nut is used to adjust the length of the second end.

13. The angle adjustment mechanism according to claim 10, characterized in that, the connection shaft has an intermediate portion located between the two first connection plates, and a sleeve is sleeved on the intermediate portion, and both ends of the sleeve abut against the first connection plate.

14. The angle adjustment mechanism according to claim 13, characterized in that, a torsion spring is provided on the sleeve, and the torsion spring provides a support opposite to the direction of gravity for the rotating member.

15. The angle adjustment mechanism according to claim 10, characterized in that, at the position where the connection shaft passes through the first connection plate and the second connection plate, the first connection plate abuts against the second connection plate through a friction plate.

16. The angle adjustment mechanism according to claim 1, characterized in that, a bushing is provided at the position on the limit shaft in contact with the limit groove, and the bushing is rotatable relative to the limit shaft.

17. A medical trolley, characterized in that, it includes a support table, a column and the angle adjustment mechanism according to any one of claims 1-16. The support table is connected to the rotating member, and the fixing member is installed at the top of the column.

18. The medical trolley according to claim 17, characterized in that, the support table is provided with an operation handle, a control button is provided on the operation handle, one end of the force transmission member is connected to the limit shaft, and the other end is connected to the control button.

19. A medical ultrasound system, characterized in that, it includes a portable ultrasound device and the medical trolley according to claim 17 or 18, and the portable ultrasound device is arranged on the tabletop of the support table.

Images