CN112739947A

CN112739947A - Mechanical locking device, support arm of ultrasonic equipment and ultrasonic equipment

Info

Publication number: CN112739947A
Application number: CN201880097213.7A
Authority: CN
Inventors: 赵彦群; 张玉龙; 陈志武; 魏开云; 宋炜华
Original assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Current assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Priority date: 2018-11-26
Filing date: 2018-11-26
Publication date: 2021-04-30
Also published as: WO2020107143A1

Abstract

A mechanical locking device, and a support arm (2000) of an ultrasonic apparatus and an ultrasonic apparatus using the same, in which a slide bar (200) of the mechanical locking device is slidably installed in a mount (100), a first elastic member (320) thereof drives a locking member (310), and provides the locking member (310) with an elastic restoring force urging the locking member (310) against the slide bar (200), and causes the locking member (310) to lock the slide bar (200). The unlocking mechanism is used for driving the locking member (310) to overcome the elastic restoring force of the first elastic member (320), thereby unlocking the slide bar (200). The user can control the unlocking mechanism to unlock the sliding rod (200) at any time, so that the sliding rod (200) can be locked at any position, and stepless locking is realized. The mechanical locking device has the advantages of simpler structure, good locking effect, no noise and no discomfort to users.

Description

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

Technical Field

The present application relates to an ultrasonic apparatus, and more particularly, to a locking structure in an ultrasonic apparatus.

Background

In a general ultrasonic apparatus (for example, a table-type ultrasonic diagnostic apparatus having a lifting function), in order to facilitate the manipulation and observation of a user, it is generally required that the ultrasonic apparatus has a linear motion mechanism, and the linear motion mechanism can be locked and stabilized at a desired position. At present, linear motion mechanisms can be classified into stepless locking and polar locking according to locking gears.

The stepless locking, that is, the linear motion mechanism can realize locking at any position within a certain motion range, for example, the locking type gas spring or the stepping motor is used for controlling the screw rod to stretch and retract so as to drive the lifting and locking of the control panel. For the lifting structure supported and controlled by the lockable gas spring, the requirement of force values required by a balance control panel and the like can be met within a period of time. However, most of gas springs have the risks of gas leakage and force value attenuation, the supporting structure cannot completely support the control panel equipment after the gas springs are used for a period of time, the required operating force is increased, and sometimes even the situation that the gravity of the control panel cannot be supported and balanced due to the fact that the force value attenuation is large, and the self-locking force is obviously weakened, so that the self-locking cannot be achieved is caused. For the lifting system adopts an electric control lifting structure, the screw rod can provide larger self-locking force, the effect is not easy to be realized, but the structure comprises a control motor which can be used when the machine is electrified, the motor can generate noise during working, uncomfortable influence is generated on doctors and/or patients, and the cost is higher.

For polar locking, that is, the linear motion mechanism can only lock at a limited position in a certain motion range, for example, locking in the linear motion direction is realized by a thread, but the structure can only lock at a limited number of gears (the number of locked gears = thread length/thread pitch), and stepless locking in the motion range cannot be realized.

Technical problem

The application mainly provides a novel mechanical locking device, a supporting arm of ultrasonic equipment using the device and the ultrasonic equipment, and aims to realize stepless locking.

Technical solution

An embodiment provides a mechanical locking device, comprising:

a mount having a ram cavity;

a slide rod slidably mounted within the slide rod cavity;

a lock mechanism including a lock member for abutting against a surface of the slide bar and locking the slide bar, and a first elastic member that drives the lock member and provides the lock member with an elastic restoring force that urges the lock member to lock the slide bar;

and the unlocking mechanism is used for driving the locking piece to overcome the elastic restoring force of the first elastic piece to unlock the sliding rod.

In one embodiment, the slide bar and the cavity wall of the slide bar cavity enclose at least one section of moving channel, the aperture of the moving channel is gradually reduced along the axial direction of the slide bar, 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, the first elastic member drives the locking member to move towards the smallest end in the moving channel, and the aperture size of the smallest end is smaller than that of the locking member, so that the locking member can be clamped in the moving channel and tightly abut against the surface of the slide bar.

In one embodiment, the mounting seat has at least one inclined groove arranged along the slide rod, and the inclined groove and the outer wall of the slide rod enclose to form a wedge-shaped moving channel.

In one embodiment, the locking mechanism further comprises a shaft sleeve and a pushing block, the shaft sleeve is fixedly mounted on the mounting seat, the sliding rod penetrates through the shaft sleeve, the pushing block abuts against the locking piece, and the first elastic piece is located between the pushing block and the shaft sleeve and used for pushing the pushing block and the locking piece to move towards the minimum end of the moving channel.

In one embodiment, the shaft sleeve is provided with a protrusion, the protrusion is arranged facing the push block, one surface of the protrusion facing the push block is provided with a first groove, one surface of the push block facing the protrusion is provided with a second groove, and two ends of the first elastic piece are respectively arranged in the first groove and the second groove.

In one embodiment, the mounting seat has at least one section of locking channel, the locking channel is communicated with the largest end of the corresponding moving channel, the first elastic member is arranged in the locking channel, one end of the first elastic member is abutted against the locking member, a supporting member is fixedly arranged outside the locking channel, and the supporting member is abutted against the other end of the first elastic member.

In one embodiment, the locking channel extends through the mounting seat from the outside to the maximum end of the moving channel, and the support member is locked in the corresponding locking channel.

In one embodiment, one locking channel is correspondingly arranged on one moving channel.

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

In one embodiment, the two sets of moving channels are symmetrically distributed on two sides of the sliding rod, and each moving channel is correspondingly provided with the locking mechanism for locking the sliding rod from two sides of the sliding rod.

In one embodiment, the moving channel comprises a left moving channel and a right moving channel, the minimum end of the left moving channel and the minimum end of the right moving channel are arranged oppositely, the left moving channel extends along the slide rod from the minimum end of the left moving channel to the direction far away from the right moving channel, the right moving channel extends along the slide rod from the minimum end of the right moving channel to the direction far away from the left moving channel, the locking mechanism comprises a left locking mechanism and a right locking mechanism, the locking piece of the left locking mechanism is arranged corresponding to the left moving channel, and the locking piece of the right locking mechanism is arranged corresponding to the right moving channel.

In one embodiment, the left moving channel and the right moving channel are respectively provided with two groups, which are respectively symmetrically distributed on two sides of the sliding rod, each left moving channel is correspondingly provided with the left locking mechanism, and each right moving channel is correspondingly provided with the right locking mechanism.

In one embodiment, release mechanism includes unlocking piece and driving medium, left side removes passageway and right side and removes the passageway and be provided with corresponding unlocking piece respectively, unlocking piece has the unblock portion that is used for promoting corresponding locking piece unblock, the driving medium is located the centre that left side removed passageway and right side removed the passageway for drive unlocking piece is carried out the unblock to the locking piece in left side removed passageway and the right side removed the passageway simultaneously.

In one embodiment, the unlocking mechanism comprises an unlocking piece and a transmission piece, the unlocking piece is provided with an unlocking part, the unlocking part is located at the minimum end of the moving channel and can stretch into the moving channel, and the transmission piece drives the unlocking piece to push the locking piece to move towards the unlocking direction.

In one embodiment, in the unlocking piece movable mounting removal passageway, just the unlocking piece has the inclined plane that triggers, trigger the front end setting of inclined plane towards the driving medium, the antedisplacement of driving medium can make trigger the inclined plane and slide on the driving medium to make the unlocking piece promote the locking piece and remove to the unblock direction.

In one embodiment, the unlocking piece is provided with a sleeve body, the sliding rod is movably arranged in the sleeve body, and the trigger inclined plane is positioned on the outer wall of the sleeve body.

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

In one embodiment, the extending direction of the unlocking channel forms an included angle with the axial direction of the sliding rod.

In one embodiment, the extending direction of the unlocking channel is perpendicular to the axial direction of the sliding rod.

In one embodiment, the trigger ramp is disposed facing the unlocking passage.

In one embodiment, the unlocking mechanism further comprises a sliding guide piece, a sliding block, a second elastic piece and a driving piece, wherein the sliding block is arranged on the sliding guide piece in a sliding mode, the sliding block is provided with an unlocking supporting surface, the unlocking supporting surface is arranged towards an unlocking channel, the driving piece is placed on the unlocking supporting surface, at least part of the unlocking supporting surface is an inclined surface, the driving piece is connected with the sliding block and used for controlling the sliding block to move, the driving piece can be pushed by the inclined surface to move towards the unlocking channel, the second elastic piece acts on the sliding block and is used for driving the sliding block to reset, and the driving piece moves towards the outside of the unlocking channel along the inclined surface.

In one embodiment, the sliding guide is a sliding groove, the sliding block is arranged in the sliding groove, and the second elastic member is arranged between the sliding block and a groove wall of the sliding groove.

In one embodiment, the driving member is a cable.

In one embodiment, the mount pad has the unblock passageway, the driving medium rotates around a fulcrum to be connected, the one end of driving medium sets up in the unblock passageway and corresponds the setting with the unlocking piece, release mechanism still includes the driving piece, the driving piece is connected with the other end of driving medium for the drive driving medium winds the fulcrum rotates, makes the driving medium can promote the unlocking piece that corresponds and unblock the piece.

In one embodiment, the number of the transmission parts is two, and the two transmission parts are stacked and rotatably connected around the same pivot.

In one embodiment, the locking device further comprises a control mechanism, wherein the unlocking mechanism and the control mechanism are connected with the driving piece through a mechanical structure or an electric signal, so that a user can control the transmission piece through the control mechanism.

In one embodiment, the control mechanism has a control handle, which is connected to the transmission member for driving the unlocking member to unlock.

In one embodiment, the outer wall of the slide bar has a flat surface for contacting the locking member.

In one embodiment, the mount includes an upper mount and a lower mount that enclose the strut cavity.

An embodiment provides a support arm of an ultrasound device, comprising a translation support, a base, and a mechanical locking device as described in any of the above, wherein a mounting seat of the mechanical locking device is fixedly mounted on the base or the translation support, and a slide bar of the mechanical locking device is fixedly mounted on the corresponding translation support or the base.

In one embodiment, the base has a lifting mechanism to enable the support arm to be raised and lowered.

In one embodiment, the base comprises a top seat, an upper support arm, a lower support arm and a base, the top seat, the upper support arm, the lower support arm and the base form a parallelogram mechanism, and the mounting seat or the sliding rod of the mechanical locking device is fixedly mounted on the top seat.

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

An embodiment provides an ultrasonic device, a host computer, a control panel and a display device, and further comprises a support arm as described in any one of the above, wherein the support arm is connected between any two of the host computer, the control panel and the display device.

Advantageous effects

According to the mechanical locking device of the above embodiment, the sliding rod is slidably mounted in the mounting seat. The first elastic piece drives the locking piece, and provides elastic restoring force for the locking piece to urge the locking piece against the sliding rod, so that the locking piece locks the sliding rod. The unlocking mechanism is used for driving the locking piece to overcome the elastic restoring force of the first elastic piece, so that the sliding rod is unlocked. The user can control the unlocking mechanism to unlock the sliding rod at any time, so that the sliding rod can be locked at any position, and stepless locking is realized. The mechanical locking device has the advantages of simpler structure, good locking effect, no noise and no discomfort to users.

Drawings

FIG. 1 is a schematic structural view of a mechanical locking device according to an embodiment of the present application;

FIG. 2 is an exploded view of a mechanical locking device according to an embodiment of the present application;

FIG. 3 is a cross-sectional view of a portion of a locking element according to one embodiment of the present application;

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

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

FIG. 6 is a cross-sectional view of a set of left and right locking mechanisms, respectively, according to an embodiment of the present application;

FIG. 7 is a cross-sectional view of two sets of left locking mechanisms according to one embodiment of the present application;

FIG. 8 is a cross-sectional view of two sets of right locking mechanisms according to one embodiment of the present application;

FIG. 9 is a cross-sectional view of a mechanical locking device according to an embodiment of the present application;

FIG. 10 is a schematic structural diagram of an unlocking mechanism according to an embodiment of the present application;

FIG. 11 is an exploded view of an unlocking mechanism according to an embodiment of the present application;

FIG. 12 is an exploded view of a support arm according to an embodiment of the present application;

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

Modes for carrying out the invention

Detailed Description

The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.

Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).

In one embodiment of the present application, a mechanical locking device is provided that can achieve non-polar locking of a slide bar, particularly for use in an ultrasonic device, for achieving non-polar locking of a linear translational motion.

The mechanical locking device comprises a mounting seat, a sliding rod, a locking mechanism and an unlocking mechanism. The mount has a ram cavity. The slide rod is slidably mounted in the slide rod cavity, thereby realizing the linear reciprocating motion of the slide rod relative to the mounting seat. The locking mechanism is used for locking the slide bar and comprises a locking piece and a first elastic piece. The locking member is adapted to abut against a surface of the slide bar and lock the slide bar, and the first elastic member drives the locking member and provides the locking member with an elastic restoring force urging the locking member to lock the slide bar, thereby unlocking the slide bar. The first elastic member provides a pre-pressure to the locking member, thereby ensuring that the locking member is normally in a state of locking the slide bar. The unlocking mechanism is used for driving the locking piece to overcome the elastic restoring force of the first elastic piece and unlock the sliding rod. The user can control the unlocking mechanism to unlock the slide bar at any time, and after the unlocking state is finished, the locking piece can be used for propping against any position of the slide bar in the axial direction, so that the slide bar can be locked at any position, and stepless locking is realized. The mechanical locking device has the advantages of simpler structure, good locking effect, no noise and no discomfort to users.

The bidirectional locking means that the locking member is in the locking position, which allows the slide bar to be locked against movement in both directions of the reciprocating movement. The one-way locking means that the locking member, when in the locking position, can be such that the slide bar is locked against movement in one of the directions of the reciprocating movement, but is still movable in the other direction.

Referring to fig. 1-3 and 9, in one embodiment, to reduce manufacturing difficulties, the mounting base 100 may be formed by combining multiple components, such as an upper mounting base 110 and a lower mounting base 120, and the upper mounting base 110 and the lower mounting base 120 enclose a sliding rod cavity (a sliding rod, not shown, is installed in the sliding rod cavity). Of course, in some embodiments, the mounting base 100 may be integrally formed.

The slide bar 200 and the wall of the slide bar cavity enclose at least one section of the moving channel 101. The bore of the moving passage 101 is gradually reduced in the axial direction of the slide bar 200. The end of the moving channel 101 with a smaller aperture is the smallest end, and the end of the moving channel 101 with a larger aperture is the largest end. The tapered moving passage 101 may have a standardized shape such as a conical shape or a pyramidal shape, or may have a irregular structure having a non-standardized shape.

Referring to fig. 2-4, in one embodiment, the mounting base 100 has at least one inclined slot 102 disposed along the slide bar 200, the inclined slot 102 and the outer wall of the slide bar 200 enclose a wedge-shaped moving channel 101, and the locking member 310 is disposed in the moving channel 101. The inclined grooves 102 may be formed on the upper and lower mounting

seats

110 and 120, respectively, to form wedge-shaped moving channels 101 on upper and lower sides of the slide bar 200, respectively, after being assembled.

Referring to fig. 9, in another embodiment, the mounting base 100 has at least one circular hole 103 extending through the slide rod cavity wall from the outside in an oblique manner, and since the circular hole 103 is disposed in an oblique manner, a hole wall 1031 facing the slide rod 200 and disposed in an oblique manner is exposed at a through opening extending through the slide rod cavity wall, and the hole wall 1031 and the outer wall of the slide rod 200 enclose to form the moving channel 101.

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

For differently shaped moving channels 101, a locking element 310 can be selected that can be matched. Referring to fig. 2-4, the locking member 310 may be implemented as a roller when such a wedge or similar moving channel 101 is used. In the wedge-shaped moving channel 101 of fig. 2-4, the angle of the chute 102 is made smaller than the self-locking angle of the roller, so that the locking is reliable. When unlocking, only the roller is driven to be separated from the chute wall of the chute 102, the unlocking force is small, and the operation is easy. Referring to fig. 9, when the moving passage 101 defined by the duct wall of the circular duct 103 and the slide rod 200 is used, the locking member 310 may be a ball. Of course, the above selection of the locking member 310 is not exclusive, and other locking members 310 with matching shapes may be selected.

The slider bar 200 has a generally cylindrical outer wall, and in order to provide a greater contact area between the locking member 310 and the outer wall of the slider bar 200, referring to fig. 2, in one embodiment, the outer wall of the slider bar 200 has a flat surface 201 for contacting the locking member 310.

Further, referring to fig. 4 and 9, the locking member 310 is installed in the moving passage 101 and can move in the moving passage 101 by an external force. The first elastic member 320 drives the locking member 310 to move toward the smallest end in the moving passage 101, the aperture size of the smallest end is smaller than that of the locking member 310, and the locking member 310 cannot slide out of the moving passage 101 from the smallest end. Meanwhile, as the diameter of the moving channel 101 gradually decreases, the locking member 310 will gradually be clamped in the moving channel 101 and abut against the surface of the sliding rod 200 when moving to the smallest end, thereby locking the sliding rod 200 so that it cannot move to the side of the smallest end of the moving channel 101. At this time, of course, the sliding rod 200 can still move to the side of the maximum end of the moving channel 101 under the action of the external force.

Referring to fig. 4 and 9, in a conventional state, the locking member 310 is moved toward the smallest end of the moving passage 101 by the elastic restoring force of the first elastic member 320, thereby locking the slide bar 200. When unlocking is required, referring to fig. 5, the unlocking mechanism drives the locking member 310 against the elastic restoring force of the first elastic member 320 to urge the locking member 310 toward the maximum end of the moving passage 101, thereby releasing the locking member 310 from the clamping position and releasing the slide bar 200.

The elastic restoring force of the first elastic member 320 to the locking member 310 may be directly applied to the locking member 310, or may 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, and referring to fig. 2 to 4, the locking mechanism further includes a sleeve 330 and a push block 340. The shaft sleeve 330 is fixedly installed on the mounting seat 100, the sliding rod 200 passes through the shaft sleeve 330, the push block 340 abuts against the locking member 310, and the first elastic member 320 is located between the push block 340 and the shaft sleeve 330 and used for pushing the push block 340 and the locking member 310 to move towards the smallest end of the moving channel 101.

Referring to fig. 2 and 4, in one embodiment, the shaft sleeve 330 has a circular ring portion, the upper mounting seat 110 and the lower mounting seat 120 have arc-shaped

grooves

111 and 121 at two ends, the arc-shaped

grooves

111 and 121 of the upper mounting seat 110 and the lower mounting seat 120 are spliced to form a cavity matching with the circular ring portion of the shaft sleeve 330, and the shaft sleeve 330 is installed in the cavity. The

arc grooves

111, 121 have

stops

112, 122 inside, the inboard of the axle sleeve 330 is resisted against the

stop

112, 122, finish the positioning to the axle sleeve 330 on one end of axial inboard. The outer side of the sleeve 330 is fixed to the upper and lower mounting

seats

110 and 120 by the baffle 130, and the baffle 130 can be fixedly connected with the upper and lower mounting

seats

110 and 120, for example, screwed, welded, etc. The slider bar 200 is slidable within a sleeve 330 relative to the mount 100.

The first elastic member 320 may be a spring, a spring plate, or other elastic members. Referring to fig. 2, in an embodiment, taking a spring as an example, the shaft sleeve 330 has a protrusion 331, the protrusion 331 is disposed facing the pushing block 340, a first groove is disposed on a surface of the protrusion 331 facing the pushing block 340, a second groove is disposed on a surface of the pushing block 340 facing the protrusion 331, and two ends of the first elastic member 320 are disposed in the first groove and the second groove respectively.

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 realize the positioning of the corresponding first elastic member 320. The push block 340 may also be designed in a circular ring shape, and the sliding rod 200 slides through the middle of the push block 340. The second groove on the pushing block 340 corresponds to the first groove of the shaft sleeve 330 for installing the corresponding first elastic member 320.

Referring to fig. 9, in another embodiment, the mounting base 100 has at least one section of the locking channel 104. In the configuration shown in fig. 9, the locking channel 104 is part of the circular aperture 103. The locking channel 104 is communicated with the maximum end of the corresponding moving channel 101, the first elastic member 320 is disposed in the locking channel 104, one end of the first elastic member 320 abuts against the locking member 310, the outer side of the locking channel 104 is fixedly provided with the supporting member 150, and the supporting member 150 abuts against the other end of the first elastic member 320.

As shown in fig. 9, the locking channel 104 penetrates obliquely from the outside of the mounting seat 100 to the maximum end of the moving channel 101, and the supporting member 150 is locked in the corresponding locking channel 104. Of course, in the configuration shown in fig. 9, the locking channel 104 is part of the circular bore 103, so that the locking channel 104 can directly abut the largest end of the displacement channel 101. In other embodiments, the locking channel 104 may be provided separately from the circular aperture 103 shown in fig. 9.

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

With continued reference to fig. 9, the first elastic member 320 may be a spring. The first elastic member 320 is located in the locking channel 104, and one end of the first elastic member 320 directly abuts against the locking member 310, while the other end of the first elastic member 320 is fixedly installed with the supporting member 150, and the supporting member 150 can be screwed or otherwise fixed with the locking channel 104. Preferably, a detachable fixing may be used to replace or repair the first elastic member 320 and the locking member 310.

With the above-described arrangement of the moving path 101, when the locking member 310 is in the locking position, as shown in fig. 4 and 9, the locking member 310 can only lock the movement of the slide bar 200 toward the side of the smallest end of the moving path 101, and cannot lock the movement of the slide bar 200 toward the side of the largest end of the moving path 101. Therefore, the number and positions of the moving channels 101 and the locking mechanisms can be selected as desired at the time of design. Referring to fig. 4 and 9, more than one moving channel 101 can be selected, and the moving channels 101 can be designed such that the maximum end is located on the left side of the figure and the minimum end is located on the right side of the figure (for convenience of description, the moving channel 101 is referred to as a left moving channel 1011 in the present embodiment), or such that the minimum end is located on the left side of the figure and the maximum end is located on the right side of the figure (for convenience of description, the moving channel 101 is referred to as a right moving channel 1012 in the present embodiment). Of course, these moving channels 101 may also have both left moving channel 1011 and right moving channel 1012. The left and right sides are only referred to the orientation shown in the drawing, and when the overall placement position changes, the left and right sides are also changed to 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 are identical in structure, and the installation position is changed according to the arrangement of the left moving channel 1011 and the right moving channel 1012. The locking member 310 of the left locking mechanism is disposed corresponding to the left moving path 1011, and the locking member 310 of the right locking mechanism is disposed corresponding to the right moving path 1012.

In one embodiment, the moving channels 101 are two groups, which are symmetrically distributed on two sides of the sliding rod 200, and each moving channel 101 is correspondingly provided with a locking mechanism. The two moving channels may be all left moving channels 1011, all right moving channels 1012, and may further include a group of left moving channels 1011 and a group of right moving channels 1012. Referring to fig. 7, two sets of left moving channels 1011 are adopted in fig. 7, and the two sets of left moving channels 1011 are symmetrically distributed on two sides of the slide bar 200, and are used for simultaneously locking the slide bar 200 from two sides in the right direction, so that the slide bar 200 cannot move in the right direction. In fig. 8, two sets of right moving channels 1012 are adopted, and the two sets of right moving channels 1012 are symmetrically distributed on two sides of the slide bar 200, and are used for simultaneously locking the slide bar 200 from two sides in the left direction, so that the slide bar 200 cannot move to the left.

Of course, referring to fig. 4, 6 and 9, in one embodiment, the moving channel 101 includes both a left moving channel 1011 and a right moving channel 1012. The minimum end of the left moving channel 1011 is opposite to the minimum end of the right moving channel 1012, the left moving channel 1011 extends from the minimum end of the left moving channel 1011 along the slide bar 200 in a direction away from the right moving channel 1012, the right moving channel 1012 extends from the minimum end of the right moving channel 1012 along the slide bar 200 in a direction away from the left moving channel 1011, the locking mechanism simultaneously comprises a left locking mechanism and a right locking mechanism, the locking piece 310 of the left locking mechanism is arranged corresponding to the left moving channel 1011, and the locking piece 310 of the right locking mechanism is arranged corresponding to the right moving channel 1012. This enables a bi-directional lock of the slide bar 200, once locked, the slide bar 200 cannot move to either the left or the right.

Referring to fig. 4 and 9, in one embodiment, the left moving channel 1011 and the right moving channel 1012 are respectively provided in two sets, which are respectively symmetrically distributed on two sides of the sliding rod 200, and each left moving channel 1011 is provided with a left locking mechanism, and each right moving channel 1012 is provided with a right locking mechanism. Since the left moving channel 1011 and the right moving channel 1012 are symmetrically disposed on both sides of the slide bar 200 at the same time, it is possible to provide a stable and symmetrical locking force, thereby improving a locking effect of the slide bar 200.

Referring to fig. 6, in an embodiment, the left moving channel 1011 and the right moving channel 1012 are respectively a set, and the left moving channel 1011 and the right moving channel 1012 may be located on the same side of the slide bar 200, or may be separately located on both sides of the slide bar 200, so as to achieve bidirectional locking of the slide bar 200.

Further, the unlocking mechanism is mainly used to drive the locking member 310 to move in the unlocking direction. The unlocking mechanism may be electrically, pneumatically, hydraulically, or manually operated by a user to generate a force that moves the locking member 310.

In one embodiment, referring to fig. 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, and the unlocking portion is located at the smallest end of the moving passage 101 and can be inserted into the moving passage 101. The driving member 420 drives the unlocking member 410 to push the locking member 310 to move in the unlocking direction. The movement of the driving member 420 can be driven by electric, pneumatic, hydraulic or manual operation.

With continued reference to fig. 2 and 3, in one embodiment, the unlocking member 410 is movably mounted in the moving passage 101, and the unlocking member 410 has a trigger slope 411. The trigger slope 411 is disposed facing the front end of the transmission member 420, and the forward movement of the transmission member 420 can make the trigger slope 411 slide on the transmission member 420 and make the unlocking member 410 push the locking member 310 to move in the unlocking direction.

When the driving member 420 moves forward, the inclined trigger slope 411 may convert the forward movement of the driving member 420 into a movement of the unlocking member 410 in the unlocking direction. Such a trigger slope 411 allows the forward movement direction of the work transfer member not to coincide with the unlocking direction of the unlocking member 410, for example, referring to fig. 2 and 3, the work transfer member may be configured to move up and down, and the unlocking member 410 may be configured to move left and right, which is advantageous to the compactness of the entire apparatus.

Of course, in some embodiments, the transmission member 420 may alternatively cooperate with the unlocking member 410 in other manners to drive the unlocking member 410, for example, the transmission member 420 may be fixedly connected to directly drive the unlocking member 410 to move.

The unlocking element 410 may be located only in the displacement channel 101 or may be able to enter the displacement channel 101 during unlocking, and the unlocking element 410 may be located entirely in the displacement channel 101 or may be able to enter the displacement channel 101 during unlocking. Referring to fig. 2 and 3, in one embodiment, the unlocking member 410 has a sleeve body, the sliding rod 200 is movably disposed in the sleeve body, and the trigger slope 411 is disposed on an outer wall of the sleeve body. The sleeve body may have a raised arrangement or other shaped unlocking feature. Referring to fig. 9, the unlocking member 410 may also be a sleeve body integrally, and the sliding rod 200 is slidably disposed in the sleeve body. The unlocking part is the part of the sleeve body facing the locking member 310.

Further, referring to fig. 3 and 9, in one embodiment, the mounting base 100 has an unlocking passage 160, and the transmission member 420 is movably installed in the unlocking passage 160. The unlocking passage 160 may be penetratingly provided at the upper mount 110 and the lower mount 120. The unlocking channel 160 may extend at an angle to the axial direction of the slide bar 200. Preferably, the unlocking passage 160 extends in a direction perpendicular to the axial direction of the slide bar 200, and the trigger slope 411 is disposed to face the unlocking passage 160, so that the length of the device in the axial direction of the slide bar 200 can be reduced, resulting in a more compact structure.

In one embodiment, referring to fig. 3 and 9, the unlocking channel 160 may be disposed between the left moving channel 1011 and the right moving channel 1012, so that the locking member 310 in the left moving channel 1011 and the right moving channel 1012 can be unlocked by one driving member 420 at the same time, thereby facilitating the operation of the user.

Further, referring to fig. 2, 4 and 5, in one embodiment, the unlocking mechanism further includes a sliding guide 430, a sliding block 440, a second elastic member 450 and a driving member 460. The slider 440 is slidably provided on the slide guide 430, and the slider 440 has an unlocking support surface 441. The unlocking support surface 441 is disposed facing the unlocking passage 160, 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 sliding block 440 for controlling the sliding block 440 to move, so that the driving member 420 can move towards the unlocking passage 160 under the pushing of the inclined surface. 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 to the outside of the unlocking passage 160 under the action of gravity, and the unlocking mechanism normally keeps the transmission member 420 in a state where it cannot be unlocked, thereby preventing from being unlocked by mistake.

With continued reference to fig. 2, 4 and 5, the sliding guide 430 is a sliding slot, the sliding block 440 is disposed in the sliding slot, and the second elastic member 450 is disposed between the sliding block 440 and a slot wall of the sliding slot. Of course, the sliding guide 430 may also be a sliding rail or other structure. The second elastic member 450 may be a spring, a leaf spring, or other elastic structure. The driving member 460 may be a cable or the like so as to be connected to a power device or a control handle or the like for inputting power.

Referring to fig. 4, in a normal state, the sliding guide 430 (sliding chute) is fixedly connected to the mounting base 100. The sliding block 440 is located at the first position, and the driving member 420 is located at the lowest position of the unlocking supporting surface 441 (or a position where the unlocking member 410 cannot unlock the locking member 310), so that the driving member 420 is separated from the unlocking member 410 or drives the unlocking member 410 to be located at the non-unlocking position, and the locking member 310 locks the sliding rod 200 under the action of the first elastic member 320.

Referring to fig. 5, when the unlocking is required, a power device or a user manually inputs power, and the driving member 460 drives the sliding block 440 to move to the second position on the sliding guide 430 (sliding chute), so that the driving member 420 moves from the lowest position of the unlocking supporting surface 441 (or the position where the unlocking member 410 cannot unlock the locking member 310) to the inside of the unlocking channel 160, and gradually pushes the trigger slope 411 of the unlocking member 410, so that the unlocking member 410 pushes the locking member 310 to move in the unlocking direction (the direction of the maximum end of the moving channel 101), thereby completing the unlocking.

When the power for unlocking is removed, the slider 440 is reset by the second elastic member 450, and the driving member 420 is reset accordingly, moves outward from the unlocking passage 160 and returns to the lowest position of the unlocking support surface 441 (or the position where the unlocking member 410 cannot unlock the locking member 310), and the locking member 310 moves toward the locking position by the first elastic member 320 and pushes the unlocking member 410 to be reset, and finally returns to the locking state.

Referring to fig. 9-12, in another embodiment of the unlocking mechanism, the mounting base 100 has an unlocking passage 160, the transmission member 420 is rotatably connected around a pivot, and one end of the transmission member 420 is disposed in the unlocking passage 160 and corresponds to the unlocking member 410. The unlocking mechanism further includes a driving member 460, and the driving member 460 is connected to the other end of the transmission member 420 and is used 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.

This embodiment triggers the unlocking of the unlocking member 410 by pivoting about a pivot point, which may be a pivot shaft 470. Depending on the number of the locking members 310, for example, in the case where the left moving path 1011 and the right moving path 1012 are provided at the same time, the locking members 310 are provided to both the left moving path 1011 and the right moving path 1012. The unlocking channel 160 is located between the left moving channel 1011 and the right moving channel 1012, and two transmission members 420 are provided, which are stacked and rotatably connected around the same pivot. The top end of the driving member 420 may further be provided with a protruding pushing portion 421 so as to rapidly push the unlocking member 410 to move in the unlocking direction.

Of course, the above are merely exemplary configurations of two unlocking mechanisms, and in other embodiments, unlocking mechanisms of other shapes and configurations may also be employed.

Further, in some embodiments, the locking device further comprises 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 one manual control mode, the control mechanism has a control handle connected to the driving member 460, for example, the driving member 460 is a cable for driving the unlocking member 410 to unlock.

Further, referring 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 of the above embodiments. The mounting 100a (for the sake of distinction from the subsequent mounting 100b, the mounting is designated 100 a) of the mechanical locking device is fixedly mounted on the base or translation bracket 2100, and the slide bar 200a (for the sake of distinction from the subsequent slide bar 200b, the mounting is designated 200 a) of the mechanical locking device is fixedly mounted on the corresponding translation bracket 2100 or base. The base and translation support 2100 may be adapted to mount any two of a host, a display device, and a control panel.

The support arm may be a structure having only a translation function, or the support arm may be a structure having both an elevation function and a translation function. Wherein the base is provided with a lifting mechanism, so that the supporting arm can be lifted.

In a more specific embodiment, the base comprises a top seat 2201, an upper arm 2202, a lower arm 2203 and a base 2204, the top seat 2201, the upper arm 2202, the lower arm 2203 and the base 2204 form a parallelogram mechanism, and a mounting seat 100a or a sliding rod 200a of the mechanical locking device is fixedly mounted on the top seat 2201.

Referring to fig. 12, specifically, the sliding rail 2301 is fixed on the translation bracket 2100 through a screw, the slider 2302 is fixed on the top seat 2201 through a screw, and the translation bracket 2100 can move linearly along the sliding rail 2301 relative to the top seat 2201. The mounting base 100 of the locking device is fixed on the top base 2201 through a pin shaft, the sliding rod 200 is fixed on the translation bracket 2100 through a pin shaft, and the locking at any position in the translation movement range can be realized through the mechanical locking device. The top seat 2201, the upper arm 2202, the lower 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 to the base 2204 by a pin, and the other end is fixed to the upper arm 2202 by a pin. The damper 2400 may use, but is not limited to, the structure of the damper 2400 existing in the art.

Further, in one embodiment, a mechanical locking device as shown in any of the above embodiments may be disposed between the base 2204 and the upper arm 2202, and since the mechanical locking device can lock at any position in the axial direction of the sliding rod 200, any position locking function in the lifting range of the supporting arm can be realized by the mechanical locking device. The mounting base 100b of the mechanical locking device may be mounted on the base 2203 or the upper arm 2202 through a pin, and the corresponding sliding rod 200b may be mounted on the upper arm 2202 or the base 2203 correspondingly.

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. Further, a support arm 2000 as shown in any of the above embodiments is further included, and the support arm 2000 is connected between any two of the host pc 300, the control panel 4000 and the display device 5000. For example, in fig. 13, the support arm 2000 is disposed between the host pc 300 and the control panel 4000.

The present application has been described with reference to specific examples, which are provided only to aid understanding of the present application and are not intended to limit the present application. Variations of the above-described embodiments may occur to those of ordinary skill in the art in light of the teachings of this application.

Claims

A mechanical locking device, comprising:

a mount having a ram cavity;

a slide rod slidably mounted within the slide rod cavity;

a lock mechanism including a lock member for abutting against a surface of the slide bar and locking the slide bar, and a first elastic member that drives the lock member and provides the lock member with an elastic restoring force that urges the lock member to lock the slide bar;

and the unlocking mechanism is used for driving the locking piece to overcome the elastic restoring force of the first elastic piece to unlock the sliding rod.
The mechanical locking device of claim 1, wherein the slide rod and the cavity wall of the slide rod cavity define at least one section of moving channel, the aperture of the moving channel is gradually reduced along the axial direction of the slide rod, the end with smaller aperture of the moving channel is the smallest end, the end with larger aperture of the moving channel is the largest end, the locking member is installed in the moving channel, the first elastic member drives the locking member to move towards the smallest end in the moving channel, and the aperture size of the smallest end is smaller than that of the locking member, so that the locking member can be clamped in the moving channel and abut against the surface of the slide rod.
A mechanical locking device according to claim 2 wherein the mounting block has at least one angled slot disposed along the slide bar, the angled slot enclosing an outer wall of the slide bar to form a wedge-shaped path of travel.
The mechanical locking device of claim 2 or 3, wherein the locking mechanism further comprises a bushing and a push block, the bushing is fixedly mounted on the mounting seat, the slide rod passes through the bushing, the push block abuts against the locking member, and the first elastic member is located between the push block and the bushing and used for pushing the push block and the locking member to move towards the minimum end of the moving channel.
The mechanical locking device of claim 4, wherein the sleeve has a protrusion, the protrusion is disposed facing the pushing block, a surface of the protrusion facing the pushing block has a first groove, a surface of the pushing block facing the protrusion has a second groove, and two ends of the first elastic member are disposed in the first groove and the second groove, respectively.
The mechanical locking device of claim 2, wherein the mounting seat has at least one section of locking channel, the locking channel is communicated with the largest end of the corresponding moving channel, the first elastic member is disposed in the locking channel, one end of the first elastic member is abutted against the locking member, a supporting member is fixedly disposed outside the locking channel, and the supporting member is abutted against the other end of the first elastic member.
A mechanical locking arrangement as claimed in claim 6 wherein the locking channels extend diagonally from the outside of the mounting block to the maximum end of the displacement channel, the support member being locked in the respective locking channel.
A mechanical locking arrangement as claimed in claim 6 or 7 wherein one locking channel is provided for each of said displacement channels.
A mechanical locking arrangement as claimed in any of claims 2 to 8 wherein the locking member is a roller or ball.
A mechanical locking device according to any one of claims 2 to 9 wherein said displacement channels are provided in two sets which are symmetrically disposed on opposite sides of the slide bar, each of said displacement channels being provided with a said locking mechanism for locking the slide bar from both sides thereof.
The mechanical locking device of any one of claims 2 to 9, wherein the moving passage comprises a left moving passage and a right moving passage, a minimum end of the left moving passage and a minimum end of the right moving passage are oppositely disposed, the left moving passage is disposed to extend along the slide bar from the minimum end thereof in a direction away from the right moving passage, the right moving passage is disposed to extend along the slide bar from the minimum end thereof in a direction away from the left moving passage, the locking mechanism comprises a left locking mechanism and a right locking mechanism, a locking member of the left locking mechanism is disposed to correspond to the left moving passage, and a locking member of the right locking mechanism is disposed to correspond to the right moving passage.
The mechanical locking device of claim 11, wherein said left moving channel and said right moving channel are respectively provided in two groups, and are symmetrically distributed on two sides of said sliding rod, and each of said left moving channels is provided with said left locking mechanism, and each of said right moving channels is provided with said right locking mechanism.
The mechanical locking device according to claim 11 or 12, wherein the unlocking mechanism comprises an unlocking member and a transmission member, the left moving passage and the right moving passage are respectively provided with the corresponding unlocking members, the unlocking members have unlocking portions for pushing the corresponding locking members to unlock, and the transmission member is located in the middle of the left moving passage and the right moving passage for driving the unlocking members to unlock the locking members in the left moving passage and the right moving passage at the same time.
A mechanical locking device according to any one of claims 2 to 12 wherein the unlocking mechanism comprises an unlocking member having an unlocking portion located at the smallest end of the displacement passage and capable of extending into the displacement passage, and a drive member for driving the unlocking member to urge the locking member in the unlocking direction.
A mechanical locking arrangement according to claim 13 or 14 wherein the unlocking member is movably mounted in the displacement channel and has an activating ramp disposed towards the forward end of the drive member, forward displacement of the drive member causing the activating ramp to slide on the drive member and the unlocking member to urge the locking member in the unlocking direction.
The mechanical locking device of claim 15, wherein the unlocking member has a sleeve body, the slide rod is movably disposed in the sleeve body, and the trigger ramp is located on an outer wall of the sleeve body.
A mechanical locking arrangement as claimed in any of claims 13 to 16 wherein the mounting block has an unlocking passage and the transmission member is movably mounted in the unlocking passage.
The mechanical locking device of claim 17, wherein said unlocking channel extends at an angle to the axial direction of the slide rod.
The mechanical locking device of claim 17, wherein said unlocking channel extends in a direction perpendicular to the axial direction of the slide rod.
Mechanical locking device according to claim 18 or 19, wherein the trigger ramp is arranged facing the unlocking channel.
The mechanical locking device of any one of claims 17 to 20, wherein the unlocking mechanism further comprises a sliding guide, a slider slidably disposed on the sliding guide, the slider having an unlocking support surface disposed facing the unlocking passage, the transmission member being disposed on the unlocking support surface, the unlocking support surface being at least partially an inclined surface, a second elastic member connected to the slider for controlling the movement of the slider so that the transmission member can move into the unlocking passage under the urging of the inclined surface, and a driving member for driving the slider to return so that the transmission member moves out of the unlocking passage along the inclined surface.
A mechanical locking device according to claim 21 wherein the sliding guide is a slide channel, the slide block is disposed within the slide channel, and the second resilient member is disposed between the slide block and a channel wall of the slide channel.
A mechanical locking arrangement as claimed in claim 21 or 22 wherein the actuating member is a cable.
A mechanical locking device according to claim 13 or 14, wherein the mounting seat has an unlocking passage, the transmission member is rotatably connected around a fulcrum, one end of the transmission member is disposed in the unlocking passage and corresponds to the unlocking member, the unlocking mechanism further comprises a driving member connected to the other end of the transmission member for driving the transmission member to rotate around the fulcrum, so that the transmission member can push the corresponding unlocking member to unlock.
A mechanical lock according to claim 24 wherein there are two of said drive members, stacked and pivotally connected about the same pivot point.
A mechanical locking device as claimed in any of claims 13 to 25 further comprising a control mechanism, the release mechanism and control mechanism being connected to the actuating member by mechanical means or by electrical signals to enable a user to control the drive member via the control mechanism.
A mechanical locking device according to claim 26 wherein the control mechanism has a control handle connected to the drive member for actuating the unlocking member to unlock.
A mechanical locking device as claimed in any one of claims 1 to 27 wherein the outer wall of the slide bar has a flat surface for contact with the locking member.
A mechanical locking device according to any of claims 1 to 28 wherein the mounting comprises an upper mounting and a lower mounting which enclose the ram cavity.
A support arm for an ultrasound device, comprising a translating carriage, a base, and a mechanical locking device according to any one of claims 1-29, the mount of the mechanical locking device being fixedly mounted on the base or the translating carriage, and the slide bar of the mechanical locking device being fixedly mounted on the corresponding translating carriage or the base.
The support arm of claim 30, wherein the base has a lift mechanism to enable the support arm to be raised and lowered.
The support arm of claim 31, wherein said base comprises a top base, an upper arm, a lower arm, and a base, said top base, upper arm, lower arm, and base comprising a parallelogram mechanism, said mechanical locking device mount or slide being fixedly mounted on said top base.
Support arm according to claim 32, characterized in that a mechanical locking device according to any of claims 1-29 is also arranged between the upper arm and the base.
An ultrasound device, a host computer, a control panel and a display device, further comprising a support arm according to any one of claims 30 to 33 connected between any two of the host computer, the control panel and the display device.