WO2020107143A1

WO2020107143A1 - Mechanical lock apparatus, support arm of ultrasonic device, and ultrasonic device

Info

Publication number: WO2020107143A1
Application number: PCT/CN2018/117391
Authority: WO
Inventors: 赵彦群; 张玉龙; 陈志武; 魏开云; 宋炜华
Original assignee: 深圳迈瑞生物医疗电子股份有限公司
Priority date: 2018-11-26
Filing date: 2018-11-26
Publication date: 2020-06-04
Also published as: CN112739947A

Abstract

Provided are a mechanical lock apparatus, and a support arm (2000) of an ultrasonic device and ultrasonic device which use such an apparatus; a slide rod (200) of the mechanical lock apparatus is slidably mounted in a mounting base (100), and a first elastic member (320) of said slide rod drives a lock member (310) and provides an elastic restoring force to the lock member (310) to induce the lock member (310) to abut against the slide rod (200), and cause the lock member (310) to lock the slide rod (200). An unlock mechanism is used for driving the lock member (310) to overcome the elastic restoring force of the first elastic member (320) and thereby unlock the slide rod (200). A user can control the unlock mechanism to unlock the slide rod (200) at any time, and cause the slide rod (200) to be locked at any position, thereby achieving stepless locking. The mechanical lock apparatus has a simpler structure, locking performance is good, and no noise is generated, thus avoiding discomfort to the user.

Description

Mechanical locking device, supporting arm of ultrasonic equipment and ultrasonic equipment

Technical field

The present application relates to an ultrasound device, in particular to a locking structure in the ultrasound device.

Background technique

In a conventional ultrasound device (for example, a desktop ultrasound diagnostic instrument with a lifting function), in order to facilitate user's manipulation and observation, it is generally required that the ultrasound device has a linear motion mechanism, and the linear motion mechanism can be locked and stopped at a desired position. At present, the linear motion mechanism can be divided into infinite locking and polar locking according to the locked gear.

The stepless locking, that is, the linear motion mechanism can be locked at any position within a certain range of motion, such as controlling the expansion and contraction of the screw by a lockable gas spring or a stepping motor to drive the lifting and locking of the control panel. For the lifting structure controlled by the lockable gas spring, it can meet the required force value requirements such as the balance control panel within a period of time. However, most gas springs have the risk of air leakage and force value attenuation. After a period of use, the support structure cannot fully support the control panel equipment, the required operating force will increase, and sometimes even the force value attenuation will cause a large Unable to support the gravity of the balanced control panel, so that the self-locking force is also significantly weakened, resulting in a situation where the self-locking cannot be achieved. For the electric control lifting structure of the lifting system, the screw can provide a large self-locking force, which is not easy to be effective. However, this structure includes a control motor, which can be used only when the machine is powered on. The motor will generate noise during work. And/or the patient has an uncomfortable effect, and the cost is higher.

For pole locking, that is, the linear motion mechanism can only lock in a limited number of positions within a certain range of motion, for example, through the thread to achieve linear motion direction locking, but this structure can only achieve locking in a limited number of gears (locked gear Number=thread length/pitch), it can not achieve stepless locking in the range of motion.

technical problem

The present application mainly provides a new type of mechanical locking device, a supporting arm and an ultrasonic device of an ultrasonic device applying the device, to realize a stepless locking.

Technical solution

An embodiment provides a mechanical locking device, including:

A mounting base, the mounting base has a sliding rod cavity;

A sliding rod, the sliding rod is slidably installed in the sliding rod cavity;

A locking mechanism, the locking mechanism includes a locking member and a first elastic member, the locking member is used to bear against the surface of the sliding rod and lock the sliding rod, the first elastic member drives the locking member, and provides an incentive to the locking member The elastic restoring force of the locking member locking slide bar;

And an unlocking mechanism, the unlocking mechanism is used to drive the locking member to overcome the elastic restoring force of the first elastic member to unlock the slide bar.

In one embodiment, the sliding rod and the cavity wall of the sliding rod cavity form at least a section of a moving channel, the aperture of the moving channel gradually decreases along the axis of the sliding rod, and the end with the smaller aperture of the moving channel is the smallest end , The end with the larger aperture of the moving channel is the largest end, the locking member is installed in the moving channel, and the first elastic member drives the locking member to move to the smallest end in the moving channel, the minimum The size of the aperture of the end is smaller than the size of the locking piece, so that the locking piece can be clamped in the moving channel and pressed against the surface of the sliding rod.

In an embodiment, the mounting seat has at least one inclined groove provided along the sliding rod, and the inclined groove and the outer wall of the sliding rod surround to form a wedge-shaped moving channel.

In an embodiment, the locking mechanism further includes a sleeve and a push block, the sleeve is fixedly installed on a mounting seat, the slide bar passes through the sleeve, and the push block abuts the locking member, so The first elastic member is located between the pushing block and the sleeve, and is used to push the pushing block and the locking member to move to the smallest end of the moving channel.

In one embodiment, the sleeve has a protrusion, the protrusion is disposed facing the push block, and the side of the protrusion facing the push block has a first groove, and the push block faces the side of the protrusion A second groove is provided, and two ends of the first elastic member are respectively arranged in the first groove and the second groove.

In one embodiment, the mounting base has at least one locking channel, the locking channel communicates with the largest end of the corresponding moving channel, the first elastic member is disposed in the locking channel, and the first elastic One end of the member abuts the locking member, and a support member is fixedly arranged outside the locking channel, and the support member abuts the other end of the first elastic member.

In one embodiment, the locking channel penetrates diagonally from the outside of the mounting base to the largest end of the moving channel, and the support member is locked in the corresponding locking channel.

In an embodiment, each of the moving channels is correspondingly provided with a locking channel.

In one embodiment, the locking member is a roller or a ball.

In one embodiment, there are two groups of the moving channels, which are symmetrically distributed on both sides of the slide bar, and each of the moving channels is correspondingly provided with the locking mechanism for locking the slide bar from both sides of the slide bar.

In one embodiment, the moving channel includes a left moving channel and a right moving channel, the smallest end of the left moving channel is opposite to the smallest end of the right moving channel, and the left moving channel runs along the slide bar from its smallest end It extends away from the right movement channel. The right movement channel extends from the smallest end along the slide bar away from the left movement channel. The locking mechanism includes a left locking mechanism and a right locking mechanism. The locking piece is set corresponding to the left moving channel, and the locking piece of the right locking mechanism is set corresponding to the right moving channel.

In one embodiment, the left movement channel and the right movement channel are respectively two groups, which are symmetrically distributed on both sides of the slide bar, and each left movement channel is correspondingly provided with the left locking mechanism, each The right movement channel is correspondingly provided with the right locking mechanism.

In an embodiment, the unlocking mechanism includes an unlocking member and a transmission member, and the left and right movement channels are respectively provided with corresponding unlocking members, and the unlocking member has an unlocking portion for pushing the corresponding locking member to unlock, The transmission member is located in the middle of the left movement channel and the right movement channel, and is used to drive the unlocking member to unlock the lock members in the left movement channel and the right movement channel at the same time.

In an embodiment, the unlocking mechanism includes an unlocking member and a transmission member, the unlocking member has an unlocking portion, the unlocking portion is located at the smallest end of the moving channel and can extend into the moving channel, the driving member The unlocking member is driven to push the locking member to move in the unlocking direction.

In an embodiment, the unlocking member is movably installed in a moving channel, and the unlocking member has a trigger slope, and the trigger slope is disposed facing the front end of the transmission member, and the forward movement of the transmission member enables the trigger slope to The transmission member slides, and the unlocking member pushes the locking member to move in the unlocking direction.

In one embodiment, the unlocking member has a sleeve body, the slide bar is movably disposed in the sleeve body, and the trigger slope is located on the outer wall of the sleeve body.

In one embodiment, the mounting base has an unlocking channel, and the transmission member is movably installed in the unlocking channel.

In one embodiment, the extending direction of the unlocking channel forms an angle with the axial direction of the slide bar.

In one embodiment, the extending direction of the unlocking channel is perpendicular to the axial direction of the slide bar.

In one embodiment, the trigger slope is set facing the unlocking channel.

In an embodiment, the unlocking mechanism further includes a sliding guide, a slider, a second elastic member, and a driving member. The slider is slidably disposed on the sliding guide. The slider has an unlocking support surface. An unlocking support surface is provided facing the unlocking channel, the transmission member is placed on the unlocking support surface, the unlocking support surface is at least partially an inclined surface, and the driving member is connected to the slider to control the movement of the slider so that the The transmission member can move into the unlocking channel under the pushing of the inclined surface, and the second elastic member acts on the slider to drive the slider to reset, so that the transmission member moves along the inclined surface outside the unlocking channel.

In an embodiment, the sliding guide is a sliding groove, the slider is disposed in the sliding groove, and the second elastic member is disposed between the slider and the groove wall of the sliding groove.

In one embodiment, the driving member is a cable.

In an embodiment, the mounting base has an unlocking channel, the transmission member is connected to rotate around a fulcrum, one end of the transmission member is disposed in the unlocking channel and is corresponding to the unlocking member, and the unlocking mechanism further includes a drive The drive member is connected to the other end of the transmission member, and is used to drive the transmission member to rotate around the fulcrum, so that the transmission member can push the corresponding unlocking member to unlock.

In one embodiment, there are two transmission members, which are stacked and connected in rotation around the same fulcrum.

In one embodiment, it further includes a control mechanism. The unlocking mechanism and the control mechanism are connected to the driving member through a mechanical structure or an electrical signal, so that the user can control the transmission member through the control mechanism.

In one embodiment, the control mechanism has a control handle, and the control handle is connected to the transmission member and used to drive the unlocking member to unlock.

In one embodiment, the outer wall of the sliding rod has a plane for contacting with the locking member.

In an embodiment, the mounting base includes an upper mounting base and a lower mounting base, and the upper mounting base and the lower mounting base are enclosed to form the sliding rod cavity.

An embodiment provides a support arm of an ultrasound apparatus, including a translational support, a base, and the mechanical locking device as described in any one of the above, the mounting seat of the mechanical locking device is fixedly installed on the base or the translational support , The slide bar of the mechanical locking device is fixedly installed on the corresponding translation bracket or base.

In one embodiment, the base has an elevating mechanism to enable the support arm to elevate.

In an embodiment, the base includes a top seat, an upper arm, a lower arm, and a base. The top seat, the upper arm, the lower arm, and the base form a parallelogram mechanism, and the mechanical locking device is installed The seat or the slide bar is fixedly installed on the top seat.

In an embodiment, a mechanical locking device as described in any one of the above is also provided between the upper arm and the base.

An embodiment provides an ultrasound device, a host, a control panel, and a display device, and further includes a support arm according to any one of the above, the support arm is connected to any two of the host, the control panel, and the display device between.

Beneficial effect

According to the mechanical locking device of the above embodiment, the slide bar is slidably installed in the mounting seat. The first elastic member drives the locking member, and provides the locking member with an elastic restoring force for urging the locking member against the sliding rod, and causes the locking member to lock the sliding rod. The unlocking mechanism is used to drive the locking member to overcome the elastic restoring force of the first elastic member, thereby unlocking the slide bar. The user can control the unlocking mechanism to unlock the slide bar at any time, that is, the slide bar can be locked at any position, thereby achieving stepless locking. This mechanical locking device has a simpler structure, a good locking effect, and no noise, which can avoid discomfort to the user.

BRIEF DESCRIPTION

1 is a schematic structural diagram of a mechanical locking device in an embodiment of this application;

2 is an exploded view of a mechanical locking device in an embodiment of this application;

3 is a cross-sectional view of a lock part in an embodiment of this application;

4 is a cross-sectional view of a mechanical locking device in an locked state according to an embodiment of the present application;

5 is a cross-sectional view of a mechanical locking device in an unlocked state in an embodiment of the present application;

6 is a cross-sectional view of a group of left locking mechanism and right locking mechanism in an embodiment of this application;

7 is a cross-sectional view when the left locking mechanism is two groups in an embodiment of the present application;

8 is a cross-sectional view when the right locking mechanism is two groups in an embodiment of the present application;

9 is a cross-sectional view of a mechanical locking device in an embodiment of this application;

10 is a schematic structural diagram of an unlocking mechanism in an embodiment of this application;

11 is an exploded view of an unlocking mechanism in an embodiment of this application;

12 is an exploded view of a support arm in an embodiment of this application;

13 is a schematic structural diagram of an ultrasound device in an embodiment of the present application.

Embodiments of the invention

detailed description

The present invention will be further described in detail below through specific embodiments and drawings. Corresponding similar element labels are used for similar elements in different embodiments. In the following embodiments, many details are described so that the present application can 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 this application are not shown or described in the specification. This is to avoid the core part of this application being overwhelmed by too many descriptions. For those skilled in the art, describe these in detail Related operations are not necessary, they can fully understand related operations according to the description in the manual and general technical knowledge in the field.

In addition, the features, operations, or characteristics described in the specification may be combined in any appropriate manner to form various embodiments. At the same time, the steps or actions in the method description can also be sequentially replaced or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and the drawings are only for clearly describing a certain embodiment, and do not mean a necessary order, unless otherwise stated that a certain order must be followed.

The serial numbers themselves, such as "first", "second", etc., are used to distinguish the described objects, and do not have any order or technical meaning. The "connection" and "connection" mentioned in this application, unless otherwise specified, include direct and indirect connection (connection).

An embodiment of the present application provides a mechanical locking device, which can realize the electrodeless locking of a sliding rod, especially applied to an ultrasonic device, to realize the electrodeless locking of linear translational motion.

The mechanical locking device includes a mounting seat, a slide bar, a locking mechanism and an unlocking mechanism. The mounting base has a sliding rod cavity. The sliding rod is installed in the sliding rod cavity in a slidable manner, so as to realize linear reciprocating movement of the sliding rod relative to the mounting seat. The locking mechanism is used to lock the slide bar, and includes a locking member and a first elastic member. The locking member is used to resist the surface of the sliding rod and lock the sliding rod. The first elastic member drives the locking member and provides the locking member with an elastic restoring force that urges the locking member to lock the sliding rod, thereby unlocking the sliding rod. The first elastic member provides a pre-pressure to the locking member, so as to ensure that the locking member is in a state of locking the slide bar under normal conditions. The unlocking mechanism is used to drive the locking member to overcome the elastic restoring force of the first elastic member and unlock the slide bar. The user can control the unlocking mechanism to unlock the slide bar at any time. After the unlocking state is completed, the locking member can be used to resist any position in the axial direction of the slide bar, that is, the slide bar can be locked at any position, thereby achieving a stepless locking. This mechanical locking device has a simpler structure, a good locking effect, and no noise, which can avoid discomfort to the user.

The two-way locking means that when the locking member is in the locked position, it can lock the slide bar in both directions of reciprocating motion and cannot move. The one-way locking means that when the locking member is in the locked position, it can lock the slide bar in one direction of reciprocating motion and cannot move, but can still move in the other direction.

Please refer to FIGS. 1-3 and FIG. 9. In an embodiment, in order to reduce manufacturing difficulty, the mounting base 100 may be formed by combining a plurality of components, for example, may include an upper mounting base 110 and a lower mounting base 120, the upper mounting The base 110 and the lower mounting base 120 surround to form a sliding rod cavity (the sliding rod has been installed in the figure, not shown). Of course, in some embodiments, the mounting base 100 may also be integrally formed.

The sliding rod 200 and the cavity wall of the sliding rod cavity form at least one moving channel 101. The aperture of the moving channel 101 gradually decreases along the axial direction of the slide bar 200. Wherein, the end of the mobile channel 101 with a smaller aperture is the smallest end, and the end of the mobile channel 101 with a larger aperture is the largest end. The tapered moving channel 101 may have a standardized shape such as a conical shape or a pyramid shape, or may be a special-shaped structure with an irregular shape.

Please refer to FIGS. 2-4. In one embodiment, the mounting base 100 has at least one chute 102 provided along the slide bar 200, and the chute 102 and the outer wall of the slide bar 200 form a wedge-shaped moving channel 101 for locking The piece 310 is placed in the moving channel 101. The chute 102 can be separately arranged on the upper mounting base 110 and the lower mounting base 120, so that after being assembled, wedge-shaped moving channels 101 are respectively formed on the upper and lower sides of the slide bar 200.

Please refer to FIG. 9. In another embodiment, the mounting base 100 has at least one circular hole 103 obliquely penetrating from the outer side to the cavity wall of the sliding rod cavity. Since the circular hole 103 is disposed obliquely, it is located at A through-hole penetrating through the cavity wall of the slide bar will expose a section of a channel wall 1031 facing the slide bar 200 and arranged obliquely. The channel wall 1031 and the outer wall of the slide bar 200 form a moving channel 101.

Of course, the above are only two example structures for forming the moving channel 101. In other embodiments, other shapes and structures of the moving channel 101 may also be used. More than one moving channel 101 may be provided. For example, in the structures shown in FIGS. 2-4 and 9, four moving channels 101 are provided in total, and each moving channel 101 may be equipped with a corresponding locking mechanism.

For the moving channels 101 of different shapes, a matching locking member 310 can be selected. Please refer to FIGS. 2-4. When adopting such a wedge-shaped or similar moving channel 101, the locking member 310 may be a roller. In the wedge-shaped moving channel 101 of FIGS. 2-4, the angle of the chute 102 is made smaller than the self-locking angle of the roller, so the locking is reliable. When unlocking, only the driving roller needs to be separated from the groove wall of the chute 102, the unlocking force is small, and it is easy to operate. Please refer to FIG. 9, when the moving channel 101 surrounded by the hole wall of the circular hole 103 and the slide bar 200 is used, the locking member 310 may be a ball. Of course, the above selection of the locking member 310 is not the only one, and other locking members 310 that can match other shapes can also be selected.

The sliding rod 200 generally has a cylindrical outer wall. In order to make the locking member 310 have a larger contact area with the outer wall of the sliding rod 200, please refer to FIG.的平面201。 The plane 201.

Further, referring to FIGS. 4 and 9, the locking member 310 is installed in the moving channel 101 and can move in the moving channel 101 under the action of external force. The first elastic member 320 drives the locking member 310 to move to the smallest end in the moving channel 101. The aperture size of the smallest end is smaller than the size of the locking member 310. The locking member 310 cannot slide out of the moving channel 101 from the smallest end. At the same time, as the aperture of the moving channel 101 gradually narrows, when the locking member 310 moves toward the smallest end, it will gradually lock in the moving channel 101 and press against the surface of the sliding bar 200, thereby locking the sliding bar 200 from moving The side of the smallest end of the channel 101 moves. Of course, at this time, the slider 200 can still move toward the side of the largest end of the moving channel 101 under the action of external force.

Please refer to FIGS. 4 and 9. In the normal state, the elastic restoring force of the first elastic member 320 causes the locking member 310 to move toward the smallest end of the moving channel 101, thereby locking the slide bar 200. When unlocking is required, please refer to FIG. 5, the unlocking mechanism drives the locking member 310 to overcome the elastic restoring force of the first elastic member 320, and causes the locking member 310 to move toward the maximum end of the moving channel 101, thereby disengaging the locking member 310 from the locked position , Release the slide bar 200.

The elastic restoring force of the first elastic member 320 against the locking member 310 may be directly applied to the locking member 310, or may be used to indirectly drive the locking member 310 to move through other components. In one embodiment, a structure for driving the locking member 310 to lock the slide bar 200 is provided. Please refer to FIGS. 2-4. The locking mechanism further includes a sleeve 330 and a push block 340. The sleeve 330 is fixedly installed on the mounting base 100, the sliding rod 200 passes through the sleeve 330, the pushing block 340 abuts the locking member 310, and the first elastic member 320 is located between the pushing block 340 and the sleeve 330 for pushing The block 340 and the locking member 310 move toward the smallest end of the moving channel 101.

Please refer to FIGS. 2 and 4, in one embodiment, the sleeve 330 has an annular portion, the upper mounting base 110 and the lower mounting base 120 have arc-shaped grooves 111, 121 at both ends, and the upper mounting base 110 and the lower mounting The arc-shaped grooves 111 and 121 of the seat 120 are assembled to form a cavity matching the circular portion of the sleeve 330, and the sleeve 330 is installed in the cavity. The arc-shaped grooves 111 and 121 have stoppers 112 and 122 inside, and the inside of the sleeve 330 abuts against the stoppers 112 and 122, and the positioning of the sleeve 330 is completed at the axially inner end. The outer side of the sleeve 330 is fixed to the upper mounting base 110 and the lower mounting base 120 by a baffle 130, and the baffle 130 can be fixedly connected with the upper mounting base 110 and the lower mounting base 120, such as screwing, welding, and the like. The sliding rod 200 can slide relative to the mounting base 100 in the sleeve 330.

The first elastic member 320 may be a spring, an elastic sheet or other elastic members. Please continue to refer to FIG. 2. In one embodiment, taking a spring as an example, the sleeve 330 has a protrusion 331, the protrusion 331 is disposed facing the push block 340, and the side of the protrusion 331 facing the push block 340 has a first groove The push block 340 has a second groove on the side facing the protrusion 331, and the two ends of the first elastic member 320 are divided into the first groove and the second groove.

According to the number of the first elastic members 320, the sleeve 330 may have more than one protrusion 331, and each protrusion 331 is correspondingly provided with a first groove, so as to achieve positioning of the corresponding first elastic member 320. The push block 340 can also be designed in a circular ring shape, and the sliding bar 200 slides through the middle of the push block 340. The second groove on the push block 340 corresponds to the first groove of the sleeve 330 and is used to install the corresponding first elastic member 320.

Please refer to FIG. 9. In another embodiment, the mounting base 100 has at least one locking channel 104. In the structure shown in FIG. 9, the locking channel 104 is a part of the circular hole 103. The locking channel 104 communicates with the largest end of the corresponding moving channel 101. The first elastic member 320 is disposed in the locking channel 104, and one end of the first elastic member 320 abuts the locking member 310. The outer side of the locking channel 104 is fixedly provided with a support For the member 150, the supporting member 150 abuts the other end of the first elastic member 320.

As shown in FIG. 9, the locking channel 104 penetrates diagonally from the outside of the mounting base 100 to the largest end of the moving channel 101, and the support 150 is locked in the corresponding locking channel 104. Of course, in the structure shown in FIG. 9, the locking channel 104 belongs to a part of the circular hole 103, so the locking channel 104 can be directly docked with the largest end of the moving channel 101. In other embodiments, the locking channel 104 can also be provided separately from the circular channel 103 shown in FIG. 9.

In order to facilitate the first elastic member 320 to better control the corresponding locking member 310, it can generally be designed that one moving channel 101 is correspondingly provided with one locking channel 104. The first elastic member 320 in one locking channel 104 correspondingly controls the locking member 310 in one moving channel 101.

Please continue to refer to FIG. 9, the first elastic member 320 may use a spring. The first elastic member 320 is located in the locking channel 104, one end of which directly abuts the locking member 310, and the other end of the first elastic member 320 is fixedly installed with a support member 150, which can be screwed with the locking channel 104 or by other means fixed. Preferably, a detachable fixation can be used to replace or repair the first elastic member 320 and the locking member 310.

With the solution of the above-mentioned moving channel 101, when the locking member 310 is in the locked position, as shown in FIGS. The slider 200 moves toward the side of the largest end of the moving channel 101. Therefore, in the design, the number and position of the moving channel 101 and the locking mechanism can be selected according to requirements. Please refer to FIGS. 4 and 9, more than one mobile channel 101 can be selected. These mobile channels 101 can be designed such that the largest end is located on the left side of the diagram and the smallest end is located on the right side of the diagram (for convenience of description, this embodiment will use this This kind of moving channel 101 is called the left moving channel 1011). It can also be designed such that the smallest end is on the left side of the figure and the largest end is on the right side of the figure (for convenience of description, this embodiment refers to this moving channel 101 as a right moving channel 1012). Of course, these moving channels 101 may also have a left moving channel 1011 and a right moving channel 1012 at the same time. Among them, the left and right are only based on the illustrated orientation. When the overall placement position changes, the said left and right should also be transformed into other corresponding orientations. For such a left moving channel 1011 and a right moving channel 1012, correspondingly, the locking mechanism may also include a left locking mechanism and a right locking mechanism. The left locking mechanism and the right locking mechanism have the same structure, and the installation position is based on the left moving channel 1011 It changes with the setting of the right movement channel 1012. The locking member 310 of the left locking mechanism is provided corresponding to the left moving channel 1011, and the locking member 310 of the right locking mechanism is provided corresponding to the right moving channel 1012.

In one embodiment, the moving channels 101 are two groups, which are symmetrically distributed on both sides of the slide bar 200, and each moving channel 101 is correspondingly provided with a locking mechanism. The two groups of moving channels may be all left moving channels 1011, or all may be right moving channels 1012, and may further include a group of left moving channels 1011 and a group of right moving channels 1012. Please refer to FIG. 7. In FIG. 7, two sets of left movement channels 1011 are used. The two sets of left movement channels 1011 are symmetrically distributed on both sides of the slide bar 200 to simultaneously lock the slide bar 200 to the right from both sides. , So that the slider 200 cannot move to the right. In FIG. 8, two sets of right movement channels 1012 are used. The two sets of right movement channels 1012 are symmetrically distributed on both sides of the slide bar 200 to simultaneously lock the slide bar 200 from both sides to the left, so that the slide bar 200 Can't move to the left.

Of course, please refer to FIGS. 4, 6 and 9. In one embodiment, the moving channel 101 includes a left moving channel 1011 and a right moving channel 1012 at the same time. The smallest end of the left movement channel 1011 and the smallest end of the right movement channel 1012 are arranged oppositely. The left movement channel 1011 extends from its smallest end along the slide bar 200 in a direction away from the right movement channel 1012, and the right movement channel 1012 from its smallest end The sliding rod 200 extends away from the left moving channel 1011. The locking mechanism includes both a left locking mechanism and a right locking mechanism. The locking member 310 of the left locking mechanism corresponds to the left moving channel 1011, and the locking member 310 of the right locking mechanism corresponds to The right movement channel 1012 is set. This can achieve two-way locking of the slide bar 200. Once locked, the slide bar 200 cannot move to the left and right.

Please refer to FIGS. 4 and 9, in one embodiment, the left movement channel 1011 and the right movement channel 1012 are two groups, which are symmetrically distributed on both sides of the slide bar 200, and each left movement channel 1011 is correspondingly provided with For the left locking mechanism, each right moving channel 1012 is correspondingly provided with a right locking mechanism. Since the left movement channel 1011 and the right movement channel 1012 are symmetrically distributed on both sides of the slide bar 200 at the same time, it can provide stable and symmetrical locking force, thereby improving the locking effect on the slide bar 200.

Please refer to FIG. 6, in one embodiment, the left movement channel 1011 and the right movement channel 1012 are respectively a group, and the left movement channel 1011 and the right movement channel 1012 may be located on the same side of the slide bar 200, or may be separately located on the slide Two sides of the lever 200, so as to achieve two-way locking of the sliding lever 200.

Further, the unlocking mechanism is mainly used to drive the locking member 310 to move in the unlocking direction. The unlocking mechanism may adopt electric, pneumatic, hydraulic and manual operation methods to generate a force for moving the locking member 310.

In one embodiment, please refer to FIGS. 2, 3 and 9, the unlocking mechanism includes an unlocking member 410 and a transmission member 420, the unlocking member 410 has an unlocking portion, the unlocking portion is located at the smallest end of the moving channel 101 and can extend into the moving channel Within 101. The transmission member 420 drives the unlocking member 410 to push the locking member 310 to move in the unlocking direction. The movement of the transmission member 420 can be driven by electric, pneumatic, hydraulic and manual operation methods of the user.

2 and 3, in one embodiment, the unlocking member 410 is movably installed in the moving channel 101, and the unlocking member 410 has a trigger slope 411. The trigger slope 411 faces the front end of the transmission member 420, and the forward movement of the transmission member 420 can cause the trigger slope 411 to slide on the transmission member 420, and the unlocking member 410 pushes the locking member 310 to move in the unlocking direction.

When the transmission member 420 moves forward, the obliquely set trigger slope 411 can convert the forward movement of the transmission member 420 into the movement of the unlocking member 410 in the unlocking direction. This kind of trigger slope 411 makes the forward direction of the power transmission member not the same as the unlocking direction of the unlocking member 410. For example, referring to FIGS. 2 and 3, the power transmission member can be set to move up and down, and the unlocking member 410 can be set to Move left and right, which is conducive to the compactness of the entire device.

Of course, in some embodiments, the transmission member 420 may also choose to cooperate with the unlocking member 410 in other ways to drive the unlocking member 410, for example, may be fixedly connected, so that the transmission member 420 directly drives the movement of the unlocking member 410.

The unlocking member 410 may only have the unlocking part located in the moving channel 101 or can enter the moving channel 101 when unlocking, and the unlocking member 410 may be entirely located in the moving channel 101 or can enter the moving channel 101 when unlocking. 2 and 3, in one embodiment, the unlocking member 410 has a sleeve body, the slide bar 200 is movably disposed in the sleeve body, and the trigger slope 411 is located on the outer wall of the sleeve body. The sleeve body may have an unlocking portion provided with a protrusion or other shapes. Please refer to FIG. 9, the unlocking member 410 may also be a sleeve body as a whole, and the slide bar 200 is slidably disposed in the sleeve body. The unlocking portion is a portion of the sleeve body facing the locking member 310.

Further, please refer to FIGS. 3 and 9. In one embodiment, the mounting base 100 has an unlocking channel 160, and the transmission member 420 is movably installed in the unlocking channel 160. The unlocking channel 160 may be disposed on the upper mounting base 110 and the lower mounting base 120. The extending direction of the unlocking channel 160 may form an angle with the axial direction of the slide bar 200. Preferably, the extending direction of the unlocking channel 160 is perpendicular to the axial direction of the slide bar 200, and the trigger slope 411 is disposed facing the unlocking channel 160, which can reduce the length of the device in the axial direction of the slide bar 200 and form a more compact structure.

In an embodiment, please refer to FIGS. 3 and 9, the unlocking channel 160 may be disposed in the middle of the left moving channel 1011 and the right moving channel 1012, so that the left moving channel 1011 and the right moving channel can be simultaneously controlled by a transmission member 420 The locking member 310 in 1012 is unlocked to facilitate the user's operation.

Further, please refer to FIGS. 2, 4 and 5. In one embodiment, the unlocking mechanism further includes a sliding guide 430, a slider 440, a second elastic member 450 and a driving member 460. The slider 440 is slidably disposed on the sliding guide 430, and the slider 440 has an unlocking support surface 441. The unlocking support surface 441 is disposed facing the unlocking channel 160, and the transmission member 420 is placed on the unlocking support surface 441, and the unlocking support surface 441 is at least partially a slope. The driving member 460 is connected to the slider 440 to control the movement of the slider 440 so that the transmission member 420 can move into the unlocking channel 160 under the pushing of the inclined plane. The second elastic member 450 acts on the slider 440 to drive the slider 440 to reset, so that the transmission member 420 moves along the inclined surface outside the unlocking channel 160 under the action of gravity, and the unlocking mechanism keeps the transmission member 420 incapable under normal conditions Unlocked state to avoid unlocking by mistake.

Please continue to refer to FIGS. 2, 4 and 5, the sliding guide 430 is a sliding groove, the slider 440 is disposed in the sliding groove, and the second elastic member 450 is disposed between the slider 440 and the groove wall of the sliding groove. Of course, the sliding guide 430 may also be a slide rail or other structures. The second elastic member 450 may adopt a spring, an elastic sheet or other forms of elastic structure. The driving member 460 may adopt a structure such as a cable, so that it can be connected with a power device or a control handle to input power.

Please refer to FIG. 4. In a normal state, the sliding guide 430 (chute) is fixedly connected to the mounting base 100. The slider 440 is in the first position, and the transmission member 420 is located at the lowest position of the unlocking support surface 441 (or the position where the unlocking member 410 cannot unlock the locking member 310), so that the transmission member 420 is separated from the unlocking member 410 or drives the unlocking member 410 is in the non-unlocked position, and the locking member 310 locks the slide bar 200 under the action of the first elastic member 320.

Please refer to FIG. 5, when unlocking is required, power is manually input by the power device or the user, and the slider 440 is driven by the driving member 460 to move to the second position on the sliding guide 430 (chute) to enable the transmission member 420 to unlock itself The lowest part of the supporting surface 441 (or the position where the unlocking piece 410 cannot unlock the locking piece 310) moves toward the inside of the unlocking channel 160, and gradually pushes the trigger slope 411 of the unlocking piece 410, so that the unlocking piece 410 pushes the locking piece 310 toward the unlocking direction ( Move the direction of the largest end of the mobile channel 101) to complete unlocking.

When the power for unlocking disappears, the slider 440 is reset under the action of the second elastic member 450, and the transmission member 420 is also reset accordingly, moving outward from the unlocking channel 160 and returning to the lowest position of the unlocking support surface 441 ( Or the unlocking member 410 cannot unlock the position of the locking member 310), and the locking member 310 moves to the locking position under the action of the first elastic member 320 and pushes the unlocking member 410 to reset, and finally returns to the locked state.

9-12, in another embodiment of the unlocking mechanism, the mounting base 100 has an unlocking channel 160, and the transmission member 420 is rotationally connected about a fulcrum. One end of the transmission member 420 is disposed in the unlocking channel 160 and is unlocked Piece 410 corresponds to the setting. The unlocking mechanism further includes a driving member 460 connected to the other end of the transmission member 420 for driving the transmission member 420 to rotate around the fulcrum, so that the transmission member 420 can push the corresponding unlocking member 410 to unlock.

In this embodiment, the unlocking member 410 is triggered to unlock by rotating around a fulcrum, and the fulcrum may be a rotating shaft 470. Depending on the number of the locking members 310, for example, when the left movement channel 1011 and the right movement channel 1012 are provided at the same time, the left movement channel 1011 and the right movement channel 1012 are provided with the locking members 310. The unlocking channel 160 is located between the left moving channel 1011 and the right moving channel 1012. At this time, two transmission members 420 can be provided, which are stacked and connected in rotation around the same fulcrum. A convex pushing portion 421 may be further provided on the top of the transmission member 420, so as to quickly push the unlocking member 410 to move in the unlocking direction.

Of course, the above are only example structures of two types of unlocking mechanisms. In other embodiments, other shapes and structures of unlocking mechanisms may also be used.

Further, in some embodiments, the locking device further includes a control mechanism. The unlocking mechanism and the control mechanism are connected to the driving member 460 through a mechanical structure or an electrical signal, so that the user can control the driving member 460 through the control mechanism.

In a manual control mode, the control mechanism has a control handle, and the control handle is connected to the driving member 460. For example, the driving member 460 uses a cable to drive the unlocking member 410 to unlock.

Further, please refer to FIG. 12, an embodiment further provides a support arm of an ultrasound apparatus, including a translation bracket 2100, a base, and a mechanical locking device as described in any one of the above embodiments. The mounting base 100a of the mechanical locking device (in order to distinguish it from the subsequent mounting base 100b, here the mounting base is marked as 100a) is fixedly installed on the base or the translation bracket 2100, and the sliding bar 200a of the mechanical locking device (in order to slide with the subsequent The rod 200b is distinguished, and here the mounting base is marked as 200a) fixedly mounted on the corresponding translation bracket 2100 or base. The base and the translation bracket 2100 can be correspondingly used to install any two of the host, the display device and the control panel.

The support arm may be a structure having only a translation function, or the support arm may also be a structure having both lifting and translation functions. Among them, the base has an elevating mechanism to enable the support arm to elevate.

In a more specific embodiment, the base includes a top base 2201, an upper arm 2202, a lower arm 2203, and a base 2204. The top base 2201, upper arm 2202, lower arm 2203, and base 2204 form a parallel The quadrilateral mechanism, the mounting base 100a of the mechanical locking device or the slide bar 200a are fixedly mounted on the top base 2201.

Please refer to FIG. 12. Specifically, the sliding rail 2301 is fixed to the translation bracket 2100 by screws, and the slider 2302 is fixed to the top base 2201 by screws. The translation bracket 2100 can move linearly along the sliding rail 2301 relative to the top base 2201. The mounting base 100 of the locking device is fixed to the top base 2201 by a pin shaft, and the slide bar 200 is fixed to the translation bracket 2100 by a pin shaft. The above-mentioned mechanical locking device can achieve locking at any position within the translation movement range. The top base 2201, the upper support arm 2202, the lower support arm 2203 and the base 2204 form a parallelogram structure through 4 rotating shafts to realize the lifting function. One end of the damper 2400 is fixed on the base 2204 through a pin shaft, and one end is fixed on the upper support arm 2202 through a pin shaft. The damper 2400 can use, but is not limited to, the structure of the damper 2400 existing in the art.

Further, in an embodiment, a mechanical locking device as shown in any of the foregoing embodiments may also be provided between the base 2204 and the upper arm 2202, because the mechanical locking device One position is locked, so the locking device can achieve any position locking function within the lifting range of the support arm. Wherein, the mounting base 100b of the mechanical locking device can be installed on the base 2203 or the upper arm 2202 through a pin, and the corresponding sliding rod 200b can be correspondingly installed on the upper arm 2202 or the base 2203.

Further, referring to FIG. 13, an embodiment further provides an ultrasound apparatus, which includes a host 300, a control panel 4000 and a display device 5000. In addition, a support arm 2000 as shown in any of the above embodiments is included, and the support arm 2000 is connected between any two of the host 300, the control panel 4000, and the display device 5000. For example, in FIG. 13, the support arm 2000 is provided between the host 300 and the control panel 4000.

A

The above uses specific examples to explain this application, but it is only used to help understand this application, not to limit this application. For those of ordinary skill in the art, based on the ideas of the present application, the above-mentioned specific embodiments may be changed.

Claims

A mechanical locking device is characterized by comprising:

A mounting base, the mounting base has a sliding rod cavity;

A sliding rod, the sliding rod is slidably installed in the sliding rod cavity;

A locking mechanism, the locking mechanism includes a locking member and a first elastic member, the locking member is used to bear against the surface of the sliding rod and lock the sliding rod, the first elastic member drives the locking member, and provides an incentive to the locking member The elastic restoring force of the locking member locking slide bar;

And an unlocking mechanism, the unlocking mechanism is used to drive the locking member to overcome the elastic restoring force of the first elastic member to unlock the slide bar.
The mechanical locking device according to claim 1, wherein the sliding rod and the cavity wall of the sliding rod cavity form at least a section of a moving channel, and the aperture of the moving channel gradually decreases along the axial direction of the sliding rod. The end with the smaller channel aperture is the smallest end, and the end with the larger channel aperture is the largest end, the locking member is installed in the moving channel, and the first elastic member drives the locking member toward the inside of the moving channel The smallest end moves, and the aperture size of the smallest end is smaller than the size of the locking member, so that the locking member can be clamped in the moving channel and pressed against the surface of the sliding rod.
The mechanical locking device according to claim 2, wherein the mounting seat has at least one inclined groove provided along the sliding rod, and the inclined groove and the outer wall of the sliding rod surround to form a wedge-shaped moving channel.
The mechanical locking device according to claim 2 or 3, characterized in that the locking mechanism further comprises a shaft sleeve and a push block, the shaft sleeve is fixedly installed on a mounting seat, and the sliding rod passes through the shaft sleeve The push block abuts the locking member, and the first elastic member is located between the push block and the sleeve, and is used to push the push block and the locking member to move to the smallest end of the moving channel.
The mechanical locking device according to claim 4, wherein the sleeve has a protrusion, the protrusion is provided facing the push block, and a surface of the protrusion facing the push block has a first groove, the A side of the push block facing the protrusion has a second groove, and two ends of the first elastic member are respectively arranged in the first groove and the second groove.
The mechanical locking device according to claim 2, wherein the mounting seat has at least one locking channel, the locking channel is in communication with the largest end of the corresponding moving channel, and the first elastic member is disposed on the locking In the channel, and one end of the first elastic member abuts against the locking member, a support member is fixedly arranged outside the locking channel, and the support member abuts against the other end of the first elastic member.
The mechanical locking device according to claim 6, wherein the locking channel penetrates diagonally from the outside of the mounting base to the largest end of the moving channel, and the support member is locked in the corresponding locking channel.
The mechanical locking device according to claim 6 or 7, characterized in that each of the moving channels is correspondingly provided with a locking channel.
The mechanical locking device according to any one of claims 2-8, wherein the locking member is a roller or a ball.
The mechanical locking device according to any one of claims 2-9, wherein the moving channels are two groups, which are symmetrically distributed on both sides of the slide bar, and each of the moving channels is correspondingly provided with the locking Mechanism for locking the slide bar from both sides of the slide bar.
The mechanical locking device according to any one of claims 2-9, wherein the movement channel includes a left movement channel and a right movement channel, and the smallest end of the left movement channel is opposite to the smallest end of the right movement channel , The left movement channel extends from its smallest end along the slide bar away from the right movement channel, the right movement channel extends from its smallest end along the slide bar away from the left movement channel, and the lock The mechanism includes a left locking mechanism and a right locking mechanism. The locking member of the left locking mechanism is set corresponding to the left moving channel, and the locking member of the right locking mechanism is set corresponding to the right moving channel.
The mechanical locking device according to claim 11, wherein the left movement channel and the right movement channel are respectively two groups, which are symmetrically distributed on both sides of the slide bar, and each of the left movement channels is correspondingly set There is the left locking mechanism, and each of the right movement channels is correspondingly provided with the right locking mechanism.
The mechanical locking device according to claim 11 or 12, wherein the unlocking mechanism includes an unlocking member and a transmission member, and the left and right movement channels are respectively provided with corresponding unlocking members, and the unlocking member has The unlocking part is used to push the unlocking part of the corresponding locking member, and the transmission member is located in the middle of the left and right moving channels, and is used to drive the unlocking member to unlock the locking members in the left and right moving channels simultaneously.
The mechanical locking device according to any one of claims 2-12, wherein the unlocking mechanism includes an unlocking member and a transmission member, the unlocking member has an unlocking portion, and the unlocking portion is located at a minimum of the moving channel And the end can be extended into the moving channel, the transmission member drives the unlocking member to push the locking member to move in the unlocking direction.
The mechanical locking device according to claim 13 or 14, wherein the unlocking member is movably installed in the moving channel, and the unlocking member has a trigger slope, the trigger slope is provided facing the front end of the transmission member, the transmission The forward movement of the piece can slide the trigger slope on the transmission piece and cause the unlocking piece to push the locking piece to move in the unlocking direction.
The mechanical locking device according to claim 15, wherein the unlocking member has a sleeve body, the slide bar is movably disposed in the sleeve body, and the trigger slope is located on an outer wall of the sleeve body.
The mechanical locking device according to any one of claims 13 to 16, wherein the mounting seat has an unlocking channel, and the transmission member is movably installed in the unlocking channel.
The mechanical locking device according to claim 17, wherein the extending direction of the unlocking channel forms an angle with the axial direction of the slide bar.
The mechanical locking device according to claim 17, wherein the extending direction of the unlocking channel is perpendicular to the axial direction of the slide bar.
The mechanical locking device according to claim 18 or 19, wherein the triggering slope is provided facing the unlocking channel.
The mechanical locking device according to any one of claims 17-20, wherein the unlocking mechanism further includes a sliding guide, a slider, a second elastic member, and a driving member, and the slider is slidably disposed on the sliding guide On the component, the slider has an unlocking support surface, the unlocking support surface is disposed facing the unlocking channel, the transmission member is placed on the unlocking support surface, the unlocking support surface is at least partially an inclined surface, and the driving component is The slider is connected to control the movement of the slider, so that the transmission member can move into the unlocking channel under the push of the inclined surface, and the second elastic member acts on the slider to drive the slider to reset so that The transmission member moves along the inclined surface outside the unlocking channel.
The mechanical locking device according to claim 21, wherein the sliding guide member is a sliding groove, the slider is disposed in the sliding groove, and the second elastic member is disposed on the groove wall of the slider and the sliding groove between.
The mechanical locking device according to claim 21 or 22, wherein the driving member is a cable.
The mechanical locking device according to claim 13 or 14, wherein the mounting seat has an unlocking channel, the transmission member is rotationally connected about a fulcrum, and one end of the transmission member is disposed in the unlocking channel and is connected to the unlocking member Correspondingly, the unlocking mechanism further includes a driving member. The driving member is connected to the other end of the transmission member for driving the transmission member to rotate about the fulcrum, so that the transmission member can push the corresponding unlocking member to unlock.
The mechanical locking device according to claim 24, wherein there are two transmission members, which are stacked and connected in rotation around the same fulcrum.
The mechanical locking device according to any one of claims 13-25, further comprising a control mechanism, the unlocking mechanism and the control mechanism are connected to the driving member through a mechanical structure or an electrical signal, so that the user can pass The control mechanism controls the transmission parts.
The mechanical locking device according to claim 26, wherein the control mechanism has a control handle, and the control handle is connected to the transmission member for driving the unlocking member to unlock.
The mechanical locking device according to any one of claims 1-27, wherein the outer wall of the slide bar has a plane for contacting with the locking member.
The mechanical locking device according to any one of claims 1-28, wherein the mounting seat includes an upper mounting seat and a lower mounting seat, and the upper mounting seat and the lower mounting seat enclose to form the sliding rod cavity .
A support arm of an ultrasonic device, characterized in that it includes a translation bracket, a base and the mechanical locking device according to any one of claims 1-29, and the mounting seat of the mechanical locking device is fixedly installed on the base or translated On the bracket, the slide bar of the mechanical locking device is fixedly installed on the corresponding translation bracket or base.
The support arm according to claim 30, wherein the base has a lifting mechanism to enable the support arm to be raised and lowered.
The support arm according to claim 31, wherein the base includes a top seat, an upper support arm, a lower support arm, and a base, and the top seat, upper support arm, lower support arm, and base form a parallelogram mechanism , The mounting seat or sliding rod of the mechanical locking device is fixedly installed on the top seat.
The support arm according to claim 32, wherein a mechanical locking device according to any one of claims 1-29 is also provided between the upper support arm and the base.
An ultrasonic device, a host, a control panel and a display device, further comprising the support arm according to any one of claims 30-33, the support arm is connected between any two of the host, the control panel and the display device.