WO2015051568A1 - 医疗设备的记录仪及其开门结构 - Google Patents

医疗设备的记录仪及其开门结构 Download PDF

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Publication number
WO2015051568A1
WO2015051568A1 PCT/CN2013/086696 CN2013086696W WO2015051568A1 WO 2015051568 A1 WO2015051568 A1 WO 2015051568A1 CN 2013086696 W CN2013086696 W CN 2013086696W WO 2015051568 A1 WO2015051568 A1 WO 2015051568A1
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WO
WIPO (PCT)
Prior art keywords
door
button
outer casing
opening structure
lock
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Application number
PCT/CN2013/086696
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English (en)
French (fr)
Inventor
魏涛
张学刚
罗申
Original Assignee
深圳迈瑞生物医疗电子股份有限公司
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Application filed by 深圳迈瑞生物医疗电子股份有限公司 filed Critical 深圳迈瑞生物医疗电子股份有限公司
Publication of WO2015051568A1 publication Critical patent/WO2015051568A1/zh

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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C1/00—Fastening devices with bolts moving rectilinearly
    • E05C1/08—Fastening devices with bolts moving rectilinearly with latching action
    • E05C1/12—Fastening devices with bolts moving rectilinearly with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch
    • E05C1/14—Fastening devices with bolts moving rectilinearly with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the handle or member moving essentially towards or away from the plane of the wing or frame
    • E05C1/145—Fastening devices with bolts moving rectilinearly with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the handle or member moving essentially towards or away from the plane of the wing or frame flush
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/316—Modalities, i.e. specific diagnostic methods
    • A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
    • A61B5/333—Recording apparatus specially adapted therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6887—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient mounted on external non-worn devices, e.g. non-medical devices
    • A61B5/6889—Rooms

Definitions

  • the invention relates to the field of machinery, in particular to a recorder for medical equipment and a door opening structure thereof.
  • the current method of opening the door of the recorder door is generally opened directly, and the wrench is designed to be opened by a wrench on the front side of the machine or by a button on the surface of the door.
  • These kinds of door opening structures and their disadvantages are as follows: 1. Opening the recorder door by the button position, the operation is inconvenient, the ease of use is not good, and the recorder door needs to protrude from the machine surface; 2. The recorder door is opened by the wrench. The width of the recorder door needs to be increased. It is difficult to realize in the case of limited space, and the feel of the wrench is not good. 3. The door is opened by the surface button, the stroke of the button is small, the operation force is relatively large, and the ease of use is not good. The above method of opening the door will damage the flatness of the machine surface, and the required operating force is large, and the ease of use is not good.
  • An opening structure for opening a door relative to a casing wherein the door is located at a first surface of the casing
  • the door opening structure comprising: a locking mechanism, configured to lock the door and the casing a solid lock and a first reset member for resetting the lock after unlocking; a button mechanism including a button, the button being threaded through the second surface of the outer casing and opposite to the second surface Actuating to control the unlocking of the lock such that the door is openable relative to the outer casing.
  • the lock body includes a lock body and a hook protruding from the lock body, the lock body is movably mounted on the door, and the hook is disposed on the outer casing
  • the upper buckle is detachably engaged;
  • the button mechanism further includes a link member, the link member is movably disposed in the outer casing, and the link member has a force receiving portion and a force applying portion.
  • the force receiving portion is coupled to the button to receive a force applied by the button to move the link member, and the urging portion drives the lock body to move when the link member moves to cause the hook to be hooked Detach from the buckle.
  • the locking mechanism further includes a pivot disposed on the door, the lock being rotatably mounted to the door by the pivot; the first reset member is twisted a spring, the torsion spring is disposed on the pivot, one end of the torsion spring abuts the door, and the other end is fixed to the lock.
  • the number of the locks is two, two locks are respectively mounted on both ends of the pivot shaft, and are fixedly connected by a connecting rod;
  • the link member includes a cross bar and a slave Two arms extending from opposite ends of the cross bar, the force receiving portion is located on the cross bar, and the urging portion is located at a front end of the two arms and respectively corresponding to the two locking members,
  • a convex shaft is disposed on each inner side of the two arms for rotational connection with the outer casing.
  • the button mechanism further includes a second reset member disposed between the link member and the outer casing to drive the link member to be reset.
  • the second resetting member is a compression spring
  • the outer casing is provided with a stud
  • the compression spring is sleeved and fixed on the stud
  • the crossbar is provided for receiving
  • the groove of the compression spring, the bottom of the groove is further provided with a through hole for the stud to pass through.
  • the button includes a baffle portion and a pressing portion and a connecting portion that are outwardly protruded from both sides of the baffle portion; the connecting portion is fixedly connected to the force receiving portion of the link member, The pressing portion protrudes from the second surface.
  • the link member is a straight rod that is movably mounted in the outer casing along a length thereof, and the force receiving portion and the urging portion are respectively opposite ends of the straight rod.
  • the force receiving portion is a first inclined surface, and one end of the button is disposed as a second inclined surface that cooperates with the first inclined surface.
  • the button mechanism further includes an elastic member for securing to the outer casing and being compressed between the door and the outer casing when the door is closed.
  • the lock is an electromagnetic switch or an electronic lock
  • the push button is an actuating switch that unlocks the electromagnetic switch or electronic lock.
  • a recorder for a medical device comprising a housing and a door, the recorder opening the door relative to the housing with an opening structure as described above, the second surface of the housing being provided for the button to be traversed The opening.
  • the medical device is an electrocardiograph.
  • the above embodiment provides the door and the button for opening the door on different surfaces of the casing, the button being separated from the door, and the door being flush with the surface of the casing.
  • the device with the door opening structure can ensure the integrity of the surface of the device and the flatness of the door surface, and is convenient to use, and is particularly suitable for a recorder of medical equipment such as an electrocardiograph recorder.
  • FIG. 1 is a perspective view of a medical device with a door opening structure according to an embodiment.
  • FIG. 2 is a perspective view of the door opening structure shown in FIG. 1.
  • FIG. 3 is a top plan view of the door opening structure shown in FIG. 1.
  • Figure 4 is a cross-sectional view showing the door locking state of the door opening structure shown in Figure 1.
  • Figure 5 is a cross-sectional view showing the unlocked state of the door opening structure of Figure 1.
  • Figure 6 is a cross-sectional view showing the door opening state of the door opening structure shown in Figure 1.
  • Figure 7 is an exploded perspective view of the button mechanism of an embodiment.
  • Figure 8 is a cross-sectional view showing a door opening structure of another embodiment.
  • Figure 9 is a cross-sectional view showing a door opening structure of still another embodiment.
  • the following embodiment describes the door opening structure of the present invention by taking a recorder of an electrocardiograph as an example. It can be understood that the door opening structure can also be applied to recorders of other medical devices other than electrocardiograph recorders, and even other mechanical devices other than medical device recorders.
  • the device has a housing and a door on a surface of the housing, and the door opening structure on the device provides an operator operable button on the other surface of the housing, the button and the door are on different surfaces, and the button is separated from the door. With the door opening structure of the present invention, the door can be flush with the surface of the casing without having to protrude from the surface of the casing.
  • the surface on which the door is located is the front side
  • the surface on which the button is located is the side surface. It should be noted that the “front side” and the “side surface” are only relative terms, indicating the relative positional relationship between the two.
  • an electrocardiograph of an embodiment includes a housing 1 and a door 2 disposed on the housing 1 to be open relative to the housing 1.
  • the door 2 is located on the first surface (i.e., the front side) of the outer casing 1, and the door 2 is flush with the front surface of the outer casing 1 when closed.
  • An opening structure is provided between the door 2 and the outer casing 1 to open the door 2 relative to the outer casing 1.
  • the second surface (i.e., the side surface) of the outer casing 1 is provided with an opening 11, through which the button 31 of the door opening structure is passed, and the user can open the door 2 by operating the button 31.
  • the door opening structure mainly includes a locking mechanism 40 and a button mechanism 30 .
  • the function of the locking mechanism 40 is primarily to allow the door 2 to be self-locking when closed on the outer casing 1.
  • the button mechanism 30 is used to release the locking state and allow the door 2 to be opened outward.
  • the locking mechanism 40 includes a locking member 41 and a first reset member 42.
  • the locking member 41 is used to lock the door 2 and the outer casing 1.
  • the first reset member 42 is used to reset the locking member 41 after being unlocked.
  • the locking member 41 includes a locking body 411 and a hook 412 protruding from the locking body 411 .
  • the door 2 is provided with a pivotable pivot 43.
  • the locking body 411 is fixedly disposed on the pivot 43 to realize the rotatably mounting of the locking member 41 on the door 2.
  • the first returning member 42 is a torsion spring in this embodiment.
  • the torsion spring 42 is also disposed on the pivot shaft 43 and has one end that abuts the door 2 and the other end penetrates into the lock 41 to be fixed to the lock 41.
  • the number of the locks 41 is two, and a lock 41 is mounted on each end of the pivot shaft 43.
  • the two locks 41 are also fixedly connected by a connecting rod 44 for synchronized movement. It can be understood that the number of the locks 41 can also be one, three or more.
  • the outer casing 1 Opposite the lock 41, the outer casing 1 is provided with a buckle 12, and the hook 412 of the lock 41 is engaged with the buckle 12. Further, the angle formed between the hook 412 and the latch body 411 is an acute angle, that is, the hook 412 is mated with the buckle 12 to securely lock the door 2 and the outer casing 1.
  • the button mechanism 30 includes a button 31 and a link member 32.
  • the button 31 is available to the operator, and the button 31 is threaded through the opening 11 on the side of the outer casing 1 and movable relative to the opening 11 to control the unlocking of the lock 41 to further open the door 2 outward.
  • the link member 32 acts as a power transmission member to transmit the movement of the button 31 to act on the lock member 41.
  • the link member 32 includes a cross bar 321 and two arms 322 extending perpendicularly from opposite ends of the cross bar 321 .
  • the inner sides of the arms 322 are respectively provided with a protruding shaft 323.
  • the outer casing 1 is provided with a connecting rod fixing frame 13, and the connecting rod member 32 is mounted on the connecting rod fixing frame 13 through the convex shaft 323, and the protruding shaft 323 is freely rotatable on the connecting rod fixing frame 13 to realize the connecting rod
  • the member 32 is rotatably mounted on the outer casing 1.
  • the front ends of the two arms 322 are respectively protruded from the biasing portion 324, and the biasing portion 324 is opposite to the locking body 411 and can drive the locking body 411 to rotate.
  • the middle portion of the crossbar 321 is a force receiving portion 325, and the force receiving portion 325 receives the force applied by the button 31 to rotate the link member 32 around the center line of the convex shaft 323.
  • the hook 412 of the lock 41 is engaged with the buckle 12 on the outer casing 1.
  • the button 31 is pressed, and the pressure is transmitted to the link member 32.
  • the button 31 and the link member 32 are rotated together with the center line of the convex shaft 323, and the arm 322 is The front end is lifted, and the urging portion 324 is in contact with the lock body 411 and drives the lock body 411 to rotate about the pivot 43.
  • the hook 412 is separated from the buckle 12 of the outer casing 1, and the door 2 and the outer casing 1 are unlocked.
  • the lock body 411 comes into contact with the door 2, and the lock 41 reaches the top dead center of rotation, and stops rotating.
  • the door 2 When the door 2 is unlocked from the outer casing 1, the door 2 can be opened relative to the outer casing 1.
  • the pushing of the door 2 can be continued by the cooperation of the button 31, the connecting rod 32 and the locking member 41, or can be realized by other structures.
  • the button 31 when the button 31 is continuously pressed in the unlocked state, the link member 32 continues to apply force to the lock body 411. Since the lock 41 has been in contact with the door 2 and cannot continue to rotate, the lock 41 will directly apply to the door 2. Force the door 2 to open, to achieve the door opening action.
  • the lock 41 rotates so that the torsion spring 42 is deformed, and the deformation does not recover due to the retention of the operator's force; when the operator no longer applies pressure to the button 31, the link member 32 and the lock
  • the firmware 41 is separated, and the torsion spring 42 is no longer subjected to an external force, and its deformation is restored, and the lock 41 is driven to rotate and reset. If an external force acts on the door 2 to close the door 2, the hook 412 of the lock 41 will again be engaged with the buckle 12 of the outer casing 1.
  • the button mechanism 30 is also provided with a second reset member.
  • the second returning member is a compression spring 33 disposed between the link member 32 and the outer casing 1 to drive the link member 32 to be reset.
  • the housing 1 has a stud 14 protruding therefrom.
  • the cross member 321 of the connecting rod member 32 is provided with a recess 3211.
  • the bottom of the recess 3211 is provided with a through hole 3212 through which the stud 14 is inserted.
  • the stud 14 passes through.
  • the through hole 3212 extends into the recess 3211, and the compression spring 33 is sleeved on the stud 14 and fixed to the stud 14 by screws 15.
  • the compression spring 33 When the door 2 is in the closed state, the compression spring 33 is in an initial state, so that the link member 32 can be kept stationary to avoid shaking; when the button 31 is pressed to unlock the door 2 and the outer casing 1, the compression spring 33 is compressed by the link member 32. The deformation is generated while the compression spring 33 also functions as a buffer; when the pressure applied to the button 31 is removed, the compression spring 33 returns to deformation to reset the link member 32. It will be understood that the compression spring 33 can also be omitted.
  • the button 31 and the link member 32 are separable.
  • the button 31 includes a shutter portion 311 and a pressing portion 312 and a connecting portion 313 which are outwardly projected on both sides of the shutter portion 311.
  • the force receiving portion 325 of the link member 32 is provided with a mounting hole 3213.
  • the connecting portion 313 is inserted into the mounting hole 3213 of the cross bar 321, and the two are fixedly connected by screws 34.
  • the shutter portion 311 is located inside the outer casing 1 and can block the opening 11 on the side of the outer casing 1 to prevent dust from entering the inside of the outer casing 1.
  • the pressing portion 312 protrudes from the opening 11 on the side of the outer casing 1 to be provided for operation by the operator.
  • the button 31 may also be integrally formed with the link member 32, and the button 31 extends outwardly from the central portion of the crossbar 321 .
  • the door 2 is flush with the front surface of the outer casing 1
  • the button 31 is located on the side of the outer casing 1
  • the button 31 is separated from the door 2
  • the power is transmitted by the cooperation of the link member 32 and the lock 41, and the button is 31 operation can realize that the door 2 is opened upward from the bottom of the door 2, which saves space for opening the door structure.
  • the link member 32 constitutes a lever mechanism
  • the convex shaft 323 is a fulcrum of the lever.
  • the distance between the force receiving portion 325 and the convex shaft 323 is greater than the distance between the force applying portion 324 and the convex shaft 323 to save labor.
  • the structure of the button (32, not shown) that cooperates with the link member 32 drives the lock 41 to rotate to disengage the hook 412 from the buckle 12 of the outer casing 1.
  • the door 2 is unlocked from the outer casing 1.
  • the embodiment further includes an elastic member 35, which may be a spring, a spring piece or other elastic structure.
  • the elastic member 35 is fixed to the outer casing 1 and is compressed between the door 2 and the outer casing 1 when the door 2 is closed. When the door 2 and the outer casing 1 are unlocked, the elastic member 35 rebounds to open the door 2 to realize the door opening action.
  • the button 31 is moved back and forth within the housing 1 relative to the opening, with the button 31 being movable in a horizontal direction, extending into the end of the housing 1 with reference to the view of Figure 9 Set to bevel.
  • the connecting rod member 32 is a straight rod disposed in a vertical direction, and is movably mounted in the outer casing 1.
  • the connecting rod member 32 is movable up and down along the longitudinal direction thereof, and the upper end thereof is abutting portion of the biasing portion with the locking member 41 to drive the locking member 41 to rotate.
  • the lower end is a force receiving portion, and the end is a sloped surface, and is matched with the inclined surface of the button 31.
  • an elastic member may also be disposed between the door 2 and the outer casing 1, and the door is bounced by the elastic member after being unlocked.
  • the buckle is rotated by the link member to disengage the hook of the hook from the outer casing.
  • the linear motion of the drive lock can also be used for unlocking.
  • the lock is not limited to the mechanical part, and the electromagnetic switch or the electronic lock can also be used.
  • the electromagnetic switch or the electronic lock locks the door and the outer casing, and the button disposed on the side of the outer casing is an actuating switch to unlock the electromagnetic switch or the electronic lock, and then Other structures such as elastic members or pushers can be used to open the door.
  • the link member can also be omitted.

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Abstract

一种医疗设备的记录仪及其开门结构，所述记录仪包括外壳（1）和位于外壳第一表面的门（2），通过所述的开门结构使门（2）相对于外壳（1）打开，所述开门结构包括锁固机构（40）和按钮机构（30），所述锁固机构（40）包括用以使所述门（2）与所述外壳（1）锁固的锁固件（41）和用以使所述锁固件（41）在脱离锁固后复位的第一复位件（42）；所述按钮机构（30）包括按钮（31），所述按钮（31）突设于所述外壳第二表面并可相对于所述外壳第二表面活动以控制所述锁固件（41）解锁从而使门（2）可相对于外壳（1）打开。该结构将门与用以开门的按钮设置于外壳的不同表面，按钮与门相分离，门可以与外壳的表面平齐，保证设备表面的完整性和门表面的平整性，便于使用。

Description

医疗设备的记录仪及其开门结构
【技术领域】
本发明涉及机械领域，尤其涉及一种医疗设备的记录仪及其开门结构。
【背景技术】
目前的记录仪门的开门方式一般采用直接打开，在机器正面设计扳手通过扳手打开，或通过在门的表面设置按钮打开。这几种开门结构及其缺点如下：1、通过扣手位打开记录仪门方式，操作不便，易用性不好，且记录仪门需凸出机器表面；2、通过扳手打开记录仪门方式，记录仪门宽度需要增加，在空间有限的情况下很难实现，同时扳手的手感不好；3、通过表面按钮开门方式，按钮行程较小，操作力比较大，易用性不好。以上开门方式会破坏机器表面的平整性，且所需的操作力较大，易用性不好。
【发明内容】
有鉴于此，有必要提供一种开门结构，以解决记录仪的门凸出机器表面，以及扳手操作手感不好的问题。
一种开门结构，用以使门相对于外壳打开，其中，所述门位于所述外壳的第一表面，所述开门结构包括：锁固机构，包括用以使所述门与所述外壳锁固的锁固件和用以使所述锁固件在解锁后复位的第一复位件；按钮机构，包括按钮，所述按钮穿设于所述外壳的第二表面并可相对于所述第二表面活动，以控制所述锁固件解锁从而使所述门可相对于所述外壳打开。
在一个实施例中，所述锁固件包括锁扣本体和突伸于所述锁扣本体的卡勾，所述锁扣本体活动安装于所述门上，所述卡勾与设置在所述外壳上的卡扣可分离地卡合；所述按钮机构还包括连杆件，所述连杆件可活动地设置于所述外壳内，所述连杆件具有受力部和施力部，所述受力部与所述按钮连接以承受按钮施加的力而使所述连杆件活动，所述施力部在所述连杆件活动时驱动所述锁扣本体活动而使所述卡勾与所述卡扣脱离。
在一个实施例中，所述锁固机构还包括设置在所述门上的枢轴，所述锁固件通过所述枢轴可转动地安装于所述门上；所述第一复位件为扭簧，所述扭簧穿设于所述枢轴上，所述扭簧的一端与所述门相抵接，另一端与所述锁固件固定。
在一个实施例中，所述锁固件的数量为两个，两个锁固件分别安装于所述枢轴的两端，并通过一连接杆固定连接；所述连杆件包括一横杆和从所述横杆两端伸出的两支臂，所述受力部位于所述横杆上，所述施力部位于所述两支臂的前端并分别与所述两个锁固件相对应，所述两支臂内侧各设有一凸轴用以与所述外壳转动连接。
在一个实施例中，所述按钮机构还包括第二复位件，所述第二复位件设置于所述连杆件与所述外壳之间以驱动所述连杆件复位。
在一个实施例中，所述第二复位件为压簧，所述外壳上设有螺柱，所述压簧套设并固定在所述螺柱上，所述横杆上设有用以容置所述压簧的凹槽，所述凹槽底部还设有供所述螺柱穿过的通孔。
在一个实施例中，所述按钮包括挡板部以及分列于挡板部两侧向外凸伸的按压部和连接部；所述连接部与所述连杆件的受力部固定连接，所述按压部突出于所述第二表面。
在一个实施例中，所述连杆件为直杆，可沿其长度方向活动地安装于所述外壳内，所述受力部和所述施力部分别为所述直杆的两端，所述受力部为第一斜面，所述按钮的一端部设置为与所述第一斜面相配合的第二斜面。
在一个实施例中，所述按钮机构还包括弹性件，所述弹性件用以固定于所述外壳上并在所述门闭合时在门与外壳之间被压缩。
在一个实施例中，所述锁固件为电磁开关或电子锁，所述按钮为使所述电磁开关或电子锁解锁的作动开关。
一种医疗设备的记录仪，包括外壳和门，所述记录仪采用如上述的开门结构使所述门相对于所述外壳打开，所述外壳的第二表面设置有供所述按钮活动穿设的开口。
在一个实施例中，所述医疗设备为心电图机。
上述实施例将门与用以开门的按钮设置于外壳的不同表面，按钮与门相分离，门可以与外壳的表面平齐。采用该开门结构的设备可以保证设备表面的完整性和门表面的平整性，便于使用，特别适用于如心电图机记录仪之类的医疗设备的记录仪。
【附图说明】
图1为应用一实施例的开门结构的医疗设备的立体示意图。
图2为图1所示开门结构的立体示意图。
图3为图1所示开门结构的俯视图。
图4为图1所示开门结构的门锁紧状态的剖视图。
图5为图1所示开门结构的门解锁状态的剖视图。
图6为图1所示开门结构的门打开状态的剖视图。
图7为一实施例的按钮机构的立体分解图。
图8为另一实施例的开门结构的剖视图。
图9为又一实施例的开门结构的剖视图。
【具体实施方式】
为使本发明的上述目的、特征和优点能够更加明显易懂，下面结合附图对本发明的具体实施方式做详细的说明。在下面的描述中阐述了很多具体细节以便于充分理解本发明。但是本发明能够以很多不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本发明内涵的情况下做类似改进，因此本发明不受下面公开的具体实施的限制。
以下实施例以心电图机的记录仪为例来介绍本发明的开门结构。可以理解的是，该开门结构也可应用于心电图机记录仪之外的其他医疗设备的记录仪中，甚至于医疗设备记录仪之外的其他机械设备。这种设备具有外壳和位于外壳一表面的门，而设备上的开门结构提供给操作者可操作的按钮则位于外壳的另一表面，按钮与门位于不同的表面，按钮与门相分离。采用本发明的开门结构可以使得门与外壳表面平齐而不必凸出于外壳表面。下列实施例中，均以门所在的表面为正面，而按钮所在的表面为侧面，需要说明的是，“正面”和“侧面”仅为相对的说法，表示两者的相对位置关系。
请参阅图1，一实施例的心电图记录仪，其包括外壳1与设置于外壳1上可相对于外壳1打开的门2。门2位于外壳1的第一表面（即正面），且门2闭合时与外壳1的正面平齐。门2与外壳1之间设置开门结构而使门2相对于外壳1打开。外壳1的第二表面（即侧面）设置有开口11，开门结构的按钮31穿设于开口11，使用者可以通过操作按钮31来使门2打开。
结合图2至图6，本实施例中，所述的开门结构主要包括锁固机构40和按钮机构30。锁固机构40的作用主要是使门2在闭合于外壳1上时可以自锁。按钮机构30用以解除锁固状态并使门2可向外打开。
锁固机构40包括锁固件41和第一复位件42。锁固件41用以使门2与外壳1锁固，第一复位件42则用以使锁固件41在脱离锁固后复位。
具体地，请参阅图4，锁固件41包括锁扣本体411和突伸于锁扣本体411的卡勾412。门2上设有一可转动的枢轴43。锁扣本体411固定穿设于该枢轴43上，从而实现了锁固件41在门2上的可转动安装。第一复位件42在本实施例中为一扭簧。扭簧42亦穿设于枢轴43上，其一端与门2相抵，另一端穿入锁固件41内而与锁固件41固定。本实施例中，锁固件41的数量为两个，枢轴43两端各安装一个锁固件41。两个锁固件41还通过一连接杆44固定连接以实现同步运动。可以理解，锁固件41的数量也可以为一个、三个或更多。与锁固件41相对地，外壳1上设置有卡扣12，锁固件41的卡勾412与该卡扣12相扣合。进一步地，卡勾412与锁扣本体411之间形成的夹角为锐角，即卡勾412与卡扣12斜面配合，使门2与外壳1可靠地锁固。
按钮机构30包括按钮31和连杆件32。按钮31可供操作者使用，按钮31穿设于外壳1侧面的开口11并可相对于开口11活动以控制锁固件41解锁从而进一步使门2可向外打开。连杆件32则作为动力传动件将按钮31的运动传递而作用于锁固件41。
请参阅图3，连杆件32包括一横杆321和从横杆321两端垂直伸出的两支臂322，两支臂322的内侧各设有一凸轴323。对应地，外壳1上设有连杆固定架13，连杆件32通过凸轴323安装于连杆固定架13上，且凸轴323在连杆固定架13上可自由转动，以实现连杆件32在外壳1上可转动地安装。两支臂322的前端分别突出设置有施力部324，该施力部324与锁扣本体411相对并可驱动锁扣本体411转动。横杆321的中部为受力部325，受力部325承受按钮31施加的力使连杆件32以凸轴323中心线为中心转动。
参阅图4，当门2与外壳1处于闭合状态时，锁固件41的卡勾412与外壳1上的卡扣12卡固。如图5所示，当需要打开门2时，按下按钮31，该压力传递给连杆件32，按钮31和连杆件32一同以凸轴323的中心线为中心转动，支臂322的前端抬起，施力部324与锁扣本体411接触并驱动锁扣本体411绕枢轴43转动。锁扣本体411转动一定角度后，卡勾412与外壳1的卡扣12分离，门2与外壳1解除锁固。此时，锁扣本体411与门2接触，锁固件41到达转动的上止点，停止转动。
当门2与外壳1解锁后，门2即可相对于外壳1打开。门2的推开可继续通过按钮31、连接杆32与锁固件41的配合实现，亦可通过其他的结构来实现。请参阅图6，在解锁状态下继续按下按钮31，连杆件32继续向锁扣本体411施力，由于锁固件41已与门2接触无法继续转动，锁固件41将直接向门2施力将门2顶开，实现开门动作。
在解锁的过程中，锁固件41转动使得扭簧42发生形变，并由于操作者施力的保持，该形变不会恢复；当操作者不再向按钮31施压时，连杆件32与锁固件41分离，扭簧42不再受外力作用，其形变恢复，驱使锁固件41转动复位。若外力作用于门2上使门2闭合，锁固件41的卡勾412将再次与外壳1的卡扣12卡合固定。
进一步地，按钮机构30亦设置有第二复位件。在本实施例中，该第二复位件为压簧33，该压簧33设置于连杆件32与外壳1之间以驱动连杆件32复位。具体地，外壳1上凸伸有螺柱14，连杆件32的横杆321上设有凹槽3211，凹槽3211底部设有供螺柱14穿设的通孔3212，螺柱14穿过该通孔3212伸入至凹槽3211内，压簧33套接于螺柱14上并由螺钉15固定在螺柱14上。当门2处于闭合状态时，压簧33为初始状态，可以使连杆件32保持不动避免晃动；当按下按钮31使门2与外壳1解锁时，压簧33被连杆件32压缩产生形变，同时压簧33也起到一个缓冲的作用；当施加于按钮31上的压力消除后，压簧33恢复形变使连杆件32复位。可以理解，压簧33也可省略。
请参阅图7，在本实施例中，按钮31与连杆件32是可分离式的。按钮31包括挡板部311以及分列于挡板部311两侧向外凸伸的按压部312和连接部313。连杆件32的受力部325开设有安装孔3213。连接部313插入横杆321的安装孔3213内，两者再通过螺钉34固定连接。挡板部311位于外壳1内部，可以遮挡外壳1侧面的开口11防止灰尘进入外壳1内部；按压部312突伸出外壳1侧面的开口11，提供给操作者操作。在其他实施例中，按钮31也可以是直接与连杆件32为一体成型结构，按钮31从横杆321的中部向外延伸。
在上述实施例中，门2与外壳1的正面平齐，按钮31位于外壳1的侧面，按钮31与门2相分离，通过连杆件32与锁固件41的配合使动力进行传递，对按钮31操作即可实现从门2下方使门2向上打开，节省开门结构占用空间。其中，连杆件32构成了一杠杆机构，凸轴323为杠杆的支点。较优地，受力部325与凸轴323之间的距离大于施力部324与凸轴323之间的距离，以起到省力的作用。
参阅图8，在另一个实施例中，仍然采用按钮（图中未示出）与连杆件32配合的结构驱动锁固件41转动使卡勾412与外壳1的卡扣12脱离锁固而使门2与外壳1解锁。区别在于，本实施例中还包括一弹性件35，该弹性件35可为弹簧、弹片或其他弹性结构。弹性件35固定在外壳1上并在门2闭合时在门2与外壳1之间被压缩。当门2与外壳1解锁后，弹性件35回弹顶开门2而实现开门动作。
参阅图9，在另一个实施例中，按钮31在外壳1内相对于开口来回运动，以图9的视图方向为参照，按钮31可沿水平方向运动，其伸入至外壳1内的端部设置为斜面。连杆件32为竖直方向设置的直杆，活动安装于外壳1内，连杆件32可沿其长度方向上下运动，其上端为施力部与锁固件41抵接以驱动锁固件41转动，下端为受力部，该端为斜面，与按钮31斜面配合。当从右按下按钮31使按钮31向左运动时，直杆垂直向上运动，驱动锁固件41转动使卡勾412与外壳1的卡扣12脱离而解锁，继续按压按钮31可进一步使锁固件41推开门。该实施例中，亦可在门2与外壳1之间设置弹性件，在解锁后通过弹性件使门弹开。
上述的三种结构中，均是通过连杆件使锁扣转动后使卡勾与外壳的卡扣脱离卡固，在其他实施例中，也可以是驱动锁扣直线运动实现解锁。另外锁扣也并非限于机械件，亦可以采用电磁开关或电子锁，通过电磁开关或电子锁使门与外壳锁紧，设置于外壳侧面的按钮为作动开关使电磁开关或电子锁解锁，然后可利用弹性件或推杆等其他结构使门打开。此时，连杆件也可省略。
以上仅为本发明的较佳可行实施例，并非限制本发明的保护范围，凡运用本发明说明书及附图内容所作出的等效结构变化，均包含在本发明的保护范围内。

Claims (12)

  1. 一种开门结构，用以使门相对于外壳打开，其中，所述门位于所述外壳的第一表面，其特征在于，所述开门结构包括：
    锁固机构，包括用以使所述门与所述外壳锁固的锁固件和用以使所述锁固件在解锁后复位的第一复位件；
    按钮机构，包括按钮，所述按钮穿设于所述外壳的第二表面并可相对于所述第二表面活动，以控制所述锁固件解锁从而使所述门可相对于所述外壳打开。
  2. 根据权利要求1所述的开门结构，其特征在于：所述锁固件包括锁扣本体和突伸于所述锁扣本体的卡勾，所述锁扣本体活动安装于所述门上，所述卡勾与设置在所述外壳上的卡扣可分离地卡合；
    所述按钮机构还包括连杆件，所述连杆件可活动地设置于所述外壳内，所述连杆件具有受力部和施力部，所述受力部与所述按钮连接以承受按钮施加的力而使所述连杆件活动，所述施力部在所述连杆件活动时驱动所述锁扣本体活动而使所述卡勾与所述卡扣脱离。
  3. 根据权利要求2所述的开门结构，其特征在于：所述锁固机构还包括设置在所述门上的枢轴，所述锁固件通过所述枢轴可转动地安装于所述门上；所述第一复位件为扭簧，所述扭簧穿设于所述枢轴上，所述扭簧的一端与所述门相抵接，另一端与所述锁固件固定。
  4. 根据权利要求3所述的开门结构，其特征在于：所述锁固件的数量为两个，两个锁固件分别安装于所述枢轴的两端，并通过一连接杆固定连接；
    所述连杆件包括一横杆和从所述横杆两端伸出的两支臂，所述受力部位于所述横杆上，所述施力部位于所述两支臂的前端并分别与所述两个锁固件相对应，所述两支臂内侧各设有一凸轴用以与所述外壳转动连接。
  5. 根据权利要求4所述的开门结构，其特征在于：所述按钮机构还包括第二复位件，所述第二复位件设置于所述连杆件与所述外壳之间以驱动所述连杆件复位。
  6. 根据权利要求5所述的开门结构，其特征在于：所述第二复位件为压簧，所述外壳上设有螺柱，所述压簧套设并固定在所述螺柱上，所述横杆上设有用以容置所述压簧的凹槽，所述凹槽底部还设有供所述螺柱穿过的通孔。
  7. 根据权利要求2所述的开门结构，其特征在于：所述按钮包括挡板部以及分列于挡板部两侧向外凸伸的按压部和连接部；所述连接部与所述连杆件的受力部固定连接，所述按压部突出于所述第二表面。
  8. 根据权利要求2所述的开门结构，其特征在于：所述连杆件为直杆，可沿其长度方向活动地安装于所述外壳内，所述受力部和所述施力部分别为所述直杆的两端，所述受力部为第一斜面，所述按钮的一端部设置为与所述第一斜面相配合的第二斜面。
  9. 根据权利要求1所述的开门结构，其特征在于：所述按钮机构还包括弹性件，所述弹性件用以固定于所述外壳上并在所述门闭合时在门与外壳之间被压缩。
  10. 根据权利要求1所述的开门结构，其特征在于：所述锁固件为电磁开关或电子锁，所述按钮为使所述电磁开关或电子锁解锁的作动开关。
  11. 一种医疗设备的记录仪，包括外壳和门，其特征在于，所述记录仪采用如权利要求1-10任一项所述的开门结构使所述门相对于所述外壳打开，所述外壳的第二表面设置有供所述按钮活动穿设的开口。
  12. 根据权利要求11所述的医疗设备的记录仪，其特征在于：所述医疗设备为心电图机。
PCT/CN2013/086696 2013-10-11 2013-11-07 医疗设备的记录仪及其开门结构 WO2015051568A1 (zh)

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