CN103536307A - Rotating member limiting device used for medical equipment and medical equipment comprising same - Google Patents
Rotating member limiting device used for medical equipment and medical equipment comprising same Download PDFInfo
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- CN103536307A CN103536307A CN201310459992.XA CN201310459992A CN103536307A CN 103536307 A CN103536307 A CN 103536307A CN 201310459992 A CN201310459992 A CN 201310459992A CN 103536307 A CN103536307 A CN 103536307A
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Abstract
The invention discloses a rotating member limiting device used for medical equipment and the medical equipment comprising the same. The rotating member limiting device comprises a machine frame, a rotating member, a first clockwise switch, a second clockwise switch, a first anticlockwise switch, a second anticlockwise switch and a controller. The rotating member is rotationally arranged on the machine frame and is provided with a triggering part, the first clockwise switch and the second clockwise switch are fixed on the first clockwise position and the second clockwise position of the machine frame respectively, the first anticlockwise switch and the second anticlockwise switch are fixed on the first anticlockwise position and the second anticlockwise position of the machine frame respectively, the first clockwise position corresponds to the position where a triggering pin clockwise rotates the angle alpha1 from the zero position, the second clockwise position corresponds to the position where the triggering pin clockwise rotates the angle beta1 from the zero position, the first anticlockwise position corresponds to the position where the triggering pin anticlockwise rotates the angle alpha2 from the zero position, and the second anticlockwise position corresponds to the position where the triggering pin anticlockwise rotates the angle beta2 from the zero position of the triggering pin, and the controller is used for controlling the rotating member. The rotating member limiting device has reliable electrical limitation, can achieve double-direction limitation of the rotating member, and is reliable in limitation.
Description
Technical field
The present invention relates to technical field of medical instruments, especially relate to a kind of rotary part stopping means for armarium and there is its armarium.
Background technology
The detector of traditional human body SPECT equipment is fixed on rotary part, detector circles, detector can above rotate in the clockwise direction with counterclockwise, and the stroke rotating is general over 180 °, cable for fear of detector is pulled off, need to carry out effectively spacing to the maximum rotation stroke of rotary part, but because detector one direction is rotated over 180 °, therefore detector clockwise or while rotating counterclockwise movement locus exist and repeat, greatly improved thus spacing difficulty, at present not well technical scheme to solve this technical problem.
Summary of the invention
The present invention is intended to solve at least to a certain extent one of above-mentioned technical problem of the prior art.
For this reason, one object of the present invention is to propose a kind of rotary part stopping means for armarium, and this rotary part stopping means has reliable electric limiting, can realize the bidirectionally limited of rotary part, and spacing reliable.
Another object of the present invention is to propose a kind of armarium, this armarium comprises above-mentioned rotary part stopping means.
According to an aspect of the present invention, proposed a kind of rotary part stopping means for armarium, should comprise for the rotary part stopping means of armarium: frame, rotary part, described rotary part is located in described frame rotationally around the rotation axis of described rotary part, the minimum point of the movement locus that the zero-bit that is fixed with trigger unit and described trigger unit on described rotary part is described trigger unit, the first clockwise switch and the first counterclockwise switch, the described first clockwise switch is fixed on the clockwise position of first in described frame, described the first counterclockwise switch is fixed on the counterclockwise position of first in described frame, the described first clockwise position is for turning over along clockwise direction the position of angle [alpha] 1 correspondence from described zero-bit, the described first counterclockwise position is for turning in the counterclockwise direction the position of described angle [alpha] 2 correspondences from described zero-bit, the second clockwise switch and the second counterclockwise switch, the described second clockwise switch is fixed on the clockwise position of second in described frame, described the second counterclockwise switch is fixed on the counterclockwise position of second in described frame, the described second clockwise position is for turning over along clockwise direction the position of angle beta 1 correspondence from described zero-bit, the described second counterclockwise position is for turning in the counterclockwise direction the position of described angle beta 2 correspondences from described zero-bit, wherein α 1 and β 1 and α 2 and β 2 meet respectively relational expression: 0 ° of < α 1 < β 1, 360 ° of 180 ° of < β 1 <, 0 ° of < α 2 < β 2, 360 ° of 180 ° of < β 2 <, with for controlling the controller of described rotary part, wherein: in described trigger unit, from described zero-bit, turn in the counterclockwise direction angle [alpha] 2 and continue to turn in the counterclockwise direction angle beta 2-α 2 when triggering described the second counterclockwise switch to trigger described the first counterclockwise switch and described trigger unit, described controller is controlled described rotary part and stopped the rotation, or in described trigger unit, from described zero-bit, turn over along clockwise direction angle [alpha] 1 and continue to turn over along clockwise direction angle beta 1-α 1 when triggering the described second clockwise switch to trigger the described first clockwise switch and described trigger unit, described controller is controlled described rotary part and is stopped the rotation.
According to the rotary part stopping means for armarium of the embodiment of the present invention, by the first clockwise switch is set, the second clockwise switch, the first counterclockwise switch and the second counterclockwise switch, thereby at the first clockwise switch with the second clockwise switch is triggered or when the first counterclockwise switch and the second counterclockwise switch are triggered simultaneously simultaneously, controller can be controlled rotary part and stop operating, thereby correctly realize the limit function to the motion of rotary part twocouese, avoid the rotation of rotary part one direction excessively, cause breaking cable, affect armarium normal operation, and this electric limiting structure is spacing reliable, and can realize the rotating range that rotary part surpasses 360 °, practical function is remarkable.
In addition, the rotary part stopping means for armarium according to the embodiment of the present invention, can also have following additional technical feature:
According to some embodiments of the present invention, described rotary part stopping means also comprises:
The 3rd clockwise switch and the 3rd counterclockwise switch, the described the 3rd clockwise switch is fixed on the clockwise position of the 3rd in described frame, described the 3rd counterclockwise switch is fixed on the counterclockwise position of the 3rd in described frame, the described the 3rd clockwise position is for turning over along clockwise direction the position of angle γ 1 correspondence from described zero-bit, the described the 3rd counterclockwise position is for turning in the counterclockwise direction the position of described angle γ 2 correspondences from described zero-bit, wherein γ 1 and γ 2 meet respectively 360 ° of relational expression: β 1 < γ 1 <, 360 ° of β 2 < γ 2 <, wherein
Described in when described trigger unit turns over angle beta 2 in the counterclockwise direction from described zero-bit, rotary part does not stop the rotation, and described trigger unit continue to turn in the counterclockwise direction angle γ 2-β 2 when triggering described the 3rd counterclockwise switch described in controller control described rotary part and stop the rotation; Or
Described in when described trigger unit turns over angle beta 1 along clockwise direction from described zero-bit, rotary part does not stop the rotation, and described trigger unit continue to turn over along clockwise direction corner γ 1-β 1 when triggering the described the 3rd clockwise switch described in controller control described rotary part and stop the rotation.
Thus, make this rotary part stopping means there is secondary electric limiting, and after one-level electric limiting lost efficacy, can to rotary part, be carried out by secondary electric limiting spacingly, make spacing more reliable, and when system works, can realize spacing to rotary part by one-level electric limiting.
According to some embodiments of the present invention, described β 1 and γ 1 and β 2 and γ 2 further meet relational expression: 270 ° of 180 ° of < β 1 < γ 1 <, 270 ° of 180 ° of < β 2 < γ 2 <.
According to some embodiments of the present invention, described α 1 and α 2, β 1 and β 2 and γ 1 γ 2 meet respectively relational expression: α 1=α 2, β 1=β 2, γ 1=γ 2.
According to some embodiments of the present invention, described α 1 and α 2 meet: α 1=α 2=90 °.
According to some embodiments of the present invention, described trigger unit is for triggering pin.
According to some embodiments of the present invention, the described first clockwise switch and described the first counterclockwise switch are unidirectional maintained switch.
According to some embodiments of the present invention, the described second clockwise switch and described the second counterclockwise switch and the described the 3rd clockwise switch and described the 3rd counterclockwise switch are two-way non-maintained switch.
According to a further aspect in the invention, proposed a kind of armarium, this armarium comprises the above-mentioned rotary part stopping means for armarium.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of rotary part stopping means according to an embodiment of the invention;
Fig. 2 and Fig. 3 are the schematic diagrams of rotary part stopping means in accordance with another embodiment of the present invention;
Fig. 4-Fig. 7 is the electrical connection schematic diagram of each switch in rotary part stopping means according to an embodiment of the invention;
Fig. 8 and Fig. 9 are the schematic diagrams of unidirectional maintained switch;
Figure 10 and Figure 11 are the schematic diagrams of two-way non-maintained switch.
Reference numeral:
The clockwise switch 103 of the clockwise switch 102, the three of the first clockwise switch 101, the second;
The first counterclockwise switch 201, the second counterclockwise switch 202, the three counterclockwise switch 203;
Trigger unit (triggering pin) 301.
The specific embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment being described with reference to the drawings, be exemplary, be intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, orientation or the position relationship of the indications such as term " " center ", " on ", D score, 'fornt', 'back', " left side ", " right side ", " vertically ", " level ", " clockwise ", " counterclockwise " be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; rather than the device of indication or hint indication or element must have specific orientation, with specific orientation structure and operation, so can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the invention, the implication of " a plurality of " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or be integral; Can be mechanical connection, can be to be also electrically connected to; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, can understand as the case may be above-mentioned term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, First Characteristic Second Characteristic it " on " or D score can comprise that the first and second features directly contact, also can comprise that the first and second features are not directly contacts but contact by the other feature between them.And, First Characteristic Second Characteristic " on ", " top " and " above " comprise First Characteristic directly over Second Characteristic and oblique upper, or only represent that First Characteristic level height is higher than Second Characteristic.First Characteristic Second Characteristic " under ", " below " and " below " comprise First Characteristic under Second Characteristic and tiltedly, or only represent that First Characteristic level height is less than Second Characteristic.
Below with reference to Fig. 1-Figure 11, describe according to the rotary part stopping means for armarium of the embodiment of the present invention, this armarium can be human body SPECT(Single-Photon Emission Computed Tomography, SPECT (single photon emission computed tomography)) equipment.This SPECT equipment has been prior art, for example can comprise fixed frame, be located at rotationally the annular rotary part in frame, rotary part can drive its rotation by drive motors, on rotary part, can be provided with detector, patient is suitable for lying on the moving bed of SPECT equipment, detector is used for surveying human body, detector need to be electrically connected to some parts on mainframe, therefore need to turn round connecton layout for the layout of cabling, for the convenience that cabling is arranged, feasibility and maintenance cost, the consideration of complete machine cost, the angle that rotary part drives detector to rotate along a direction is generally between 180 °-360 °, along clockwise direction or the angle of counterclockwise rotating all over 180 °, but be generally not more than 360 °, therefore two stopping means need to be set respectively to rotary part in the clockwise direction and counterclockwise, realize respectively spacing.But, because one direction is rotated all over 180 °, therefore when rotating, rotary part one direction have and only have a stopping means can play position-limiting action, and another stopping means is not only by spacing.Thus, the concrete structure of stopping means and function are had to special requirement, below with reference to Fig. 1-Figure 11, describe rotary part stopping means according to some embodiments of the invention in detail.
Rotary part stopping means for armarium can comprise frame, rotary part, the first clockwise switch 101 and first counterclockwise switch the 201, second clockwise switch 102 and the second counterclockwise switch 202 and controller according to an embodiment of the invention.
Frame is fixed, and frame can be used as the carrier that miscellaneous part is installed, and miscellaneous part all can be arranged in frame directly or indirectly.Rotary part is located in frame rotationally around the rotation axis of rotary part, and particularly, rotary part circles around rotation axis in vertical plane.Here, rotary part circles should make broad understanding, for example can be understood as is that rotary part circles in certain angle, as described below, the maximum angle that rotary part moves in the counterclockwise direction from the zero-bit (the O position Fig. 1 and Tu) of trigger unit 301 is the embodiment in β 2(corresponding diagram 1) or γ 2(corresponding diagram 2 in embodiment), along clockwise direction motion maximum angle be the embodiment in β 1(corresponding diagram 1) or γ 1(corresponding diagram 2 in embodiment), wherein 180 ° of < β 1 < γ 1 < 360 °, 360 ° of 180 ° of < β 2 < γ 2 <.
On rotary part, be fixed with trigger unit 301, be that trigger unit 301 together circles with rotary part, as along clockwise direction or counterclockwise at vertical in-plane moving, therefore the movement locus of trigger unit 301 has minimum point and peak, and the movement locus minimum point that wherein defines trigger unit 301 is zero-bit.According to some embodiments of the present invention, trigger unit 301 can be to trigger pin.
Shown in Fig. 1, the first clockwise switch 101 is fixed on the position (the K1 position in Fig. 1 and Fig. 2) clockwise of first in frame, and the first clockwise switch 101 is fixed with respect to rotary part.Wherein the first clockwise position is for turning over along clockwise direction the position of angle [alpha] 1 correspondence from zero-bit.In other words, from zero-bit turns over α 1 angle clockwise, corresponding shelf position is the fixed position of the first clockwise switch 101, and when rotary part turns to this position, trigger unit 301 will trigger the first clockwise switch 101.
Shown in Fig. 1, the first counterclockwise switch 201 is fixed on the position (the T1 position in Fig. 1 and Fig. 2) counterclockwise of first in frame, and the first counterclockwise switch 201 is fixed with respect to rotary part.Wherein the first counterclockwise position is for turning in the counterclockwise direction the position of angle [alpha] 2 correspondences from zero-bit.In other words, from zero-bit turns over α 2 angles counterclockwise, corresponding shelf position is the fixed position of the first counterclockwise switch 201, and when rotary part turns to this position, trigger unit 301 will trigger the first counterclockwise switch 201.
Equally, shown in Fig. 1, the second clockwise switch 102 is fixed on the position (the K2 position in Fig. 1 and Fig. 2) clockwise of second in frame, and the second clockwise switch 102 is fixed with respect to rotary part.Wherein the second clockwise position is for turning over along clockwise direction the position of angle beta 1 correspondence from zero-bit.In other words, from zero-bit turns over β 1 angle clockwise, corresponding shelf position is the fixed position of the second clockwise switch 102, and when rotary part turns to this position, trigger unit 301 will trigger the second clockwise switch 102.
Shown in Fig. 1, the second counterclockwise switch 202 is fixed on the position (the T2 position in Fig. 1 and Fig. 2) counterclockwise of second in frame, and the second counterclockwise switch 202 is fixed with respect to rotary part.Wherein the second counterclockwise position is for turning in the counterclockwise direction the position of angle beta 2 correspondences from zero-bit.In other words, from zero-bit turns over β 2 angles counterclockwise, corresponding shelf position is the fixed position of the second counterclockwise switch 202, and when rotary part turns to this position, trigger unit 301 will trigger the second counterclockwise switch 202.
Wherein α 1 and β 1 and α 2 and β 2 meet relational expression: 0 ° of < α 1 < β 1,360 ° of 180 ° of < β 1 <, 0 ° of < α 2 < β 2,360 ° of 180 ° of < β 2 <, that is to say, the zero-bit of trigger unit 301 of take is starting point, the second clockwise switch 102 is positioned at the downstream of the first clockwise switch 101, and the second counterclockwise switch 202 is positioned at the downstream of the first counterclockwise switch 201.
According to preferred embodiments more of the present invention, α 1=α 2, β 1=β 2.In other words, the first clockwise switch 101 and the first counterclockwise switch 201 are symmetrical about vertical center line, and this vertical center line is for passing through the straight line of trigger unit 301 movement locus peaks and minimum point.Equally, the second clockwise switch 102 and the second counterclockwise switch 202 are also symmetrical about this vertical center line.But, should be appreciated that and the present invention includes but be not limited to this, for example, according to other embodiment of the present invention, α 1 and α 2 can be also unequal, same β 1 and β 2 can be also unequal.
Controller is used for controlling rotary part, in other words, controller is used for controlling rotary part rotation or control rotary part stops operating, and for example rotary part can be driven by drive motors, and controller can be controlled forward, the reversion of drive motors and control drive motors and stop operating.
Wherein, in this embodiment, only, at the first counterclockwise switch 201 with when the second counterclockwise switch 202 is triggered or the first clockwise switch 101 and the second clockwise switch 102 are triggered simultaneously simultaneously, controller just can be controlled rotary part and stop operating.And, when one of the first counterclockwise switch 201 and second counterclockwise switch 202 are triggered or one of the first clockwise switch 101 and second clockwise switch 102 are triggered, rotary part can rotate, and this Time Controller is not used in and controls rotary part and stop the rotation.
Thus, in trigger unit 301, from zero-bit, turn in the counterclockwise direction angle [alpha] 2 and continue to turn in the counterclockwise direction angle beta 2-α 2 when triggering the second counterclockwise switch 202 to trigger the first counterclockwise switch 201 and trigger unit 301, controller is controlled rotary part and is stopped the rotation, thereby realizes the electric limiting to it when rotary part rotates counterclockwise.
Particularly, when trigger unit 301 turns to the first counterclockwise position in the counterclockwise direction from zero-bit, trigger unit 301 triggers the first counterclockwise switch 201, trigger unit 301 continues to turn in the counterclockwise direction the second clockwise position, trigger unit 301 triggers the second clockwise switch 102, trigger unit 301 continues to turn in the counterclockwise direction the second counterclockwise position, trigger unit 301 triggers the second counterclockwise switch 202, now because the first counterclockwise switch 201 and the second counterclockwise switch 202 are all triggered, so controller is controlled rotary part and is stopped the rotation.In this process, owing to only having the second clockwise switch 102 to be triggered in the first clockwise switch 101 and the second clockwise switch 102, therefore trigger unit 301 is when triggering and pass through the second clockwise switch 102, controller can not controlled rotary part and stop, thereby rotary part and trigger unit 301 can freely be passed through the second clockwise switch 102 continuation to the second counterclockwise switch 202 motions.
In trigger unit 301, from zero-bit, turn over along clockwise direction angle [alpha] 1 and continue to turn over along clockwise direction angle beta 1-α 1 when triggering the second clockwise switch 102 to trigger the first clockwise switch 101 and trigger unit 301, controller control rotary part stops the rotation.
Particularly, when trigger unit 301 turns to the first clockwise position along clockwise direction from zero-bit, trigger unit 301 triggers the first clockwise switch 101, trigger unit 301 continues to turn to along clockwise direction the second counterclockwise position, trigger unit 301 triggers the second counterclockwise switch 202, trigger unit 301 continues to turn to along clockwise direction the second clockwise position, trigger unit 301 triggers the second clockwise switch 102, now because the first clockwise switch 101 and the second clockwise switch 102 are all triggered, so controller is controlled rotary part and is stopped the rotation.In this process, owing to only having the second counterclockwise switch 202 to be triggered in the first counterclockwise switch 201 and the second counterclockwise switch 202, therefore trigger unit 301 is when triggering and pass through the second counterclockwise switch 202, controller can not controlled rotary part and stop, thereby rotary part and trigger unit 301 can freely be passed through the second counterclockwise switch 202 continuation to the second clockwise switch 102 motions.
According to some embodiments of the present invention, the first clockwise switch 101 and the first counterclockwise switch 201 are unidirectional maintained switch.Here " unidirectional " can be understood as this unidirectional maintained switch only allow to trigger pin from " passing through direction " by and trigger the contact of unidirectional maintained switch, for example, in the schematic diagram of the clockwise switch 101 of first shown in Fig. 8 or the first counterclockwise switch 201, its A direction i.e. direction is from left to right described by direction, from B direction, can not pass through from right to left.Equally, at first shown in Fig. 9 clockwise in the schematic diagram of switch 101 or the first counterclockwise switch 201, its A direction i.e. direction is from right to left described by direction, from B direction, can not pass through from left to right.
In addition, here the state after " maintenance " can be understood as and can keep after this unidirectional maintained switch is triggered being triggered, this unidirectional maintained switch can not return to original state after being triggered voluntarily, and only after this unidirectional maintained switch is triggered again, just can return to original state.
For example, this unidirectional maintained switch has the first contact (being contact 1) and the second contact (being contact 2), shown in seeing figures.1.and.2, when trigger unit 301 is positioned at zero-bit, the contact 1 in the contact 1 in the first clockwise switch 101 and the disconnection of contact 2 or closure state and the first counterclockwise switch 201 and the disconnection of contact 2 or closure state are as shown in the figure.
According to one embodiment of present invention, the second clockwise switch 102 and the second counterclockwise switch 202 are two-way non-maintained switch.Here " two-way " can be understood as this two-way non-maintained switch and allows triggering pin all can pass through from clockwise and counter clockwise direction, here " non-maintenance " can be understood as after triggering this two-way non-maintained switch of pin triggering, after triggering pin continuation motion is left, state before this two-way non-maintained switch is triggered recovery, returns to original state.
Be appreciated that, above-mentioned two-way non-maintained switch and unidirectional maintained switch are prior art, and by those of ordinary skill in the field, known, therefore here for concrete structure and the operation principle of two-way non-maintained switch and unidirectional maintained switch, do not made specified otherwise.
Wherein, shown in Fig. 4-Fig. 7, in these four schematic diagrams, shown the first clockwise switch 101 and the second clockwise switch 102(and the 3rd clockwise switch 103 that will mention below) and the first counterclockwise switch 201 and the second counterclockwise switch 202(and the 3rd counterclockwise switch 203 that will mention below) between circuit connection diagram, be to be understood that, this circuit diagram is only schematic, can not be interpreted as it is the circuit diagram of product practical application, for the ordinary skill in the art, after understanding technical scheme of the present invention in conjunction with the basic circuit knowledge of electricity field, obviously can above-mentioned circuit diagram be modified and/or be replaced, and can realize technical scheme of the present invention equally, above-mentioned circuit diagram is only example explanation, can not be interpreted as it is to a kind of restriction of the present invention.Wherein, the other parts of the dotted rectangle part representative system circuit in foregoing circuit schematic diagram, for this partial circuit, can need and adaptability design according to actual product, this should be easily to understand and be easy to realize for the ordinary skill in the art.
Below with reference to Fig. 1, Fig. 4-Fig. 7, rotary part stopping means is simply described according to an embodiment of the invention for realizing the process to the one-level electric limiting of rotary part, wherein with trigger unit 301, clockwise rotate as example, and take SM2 and represent that the first clockwise switch 101, STS2 represent that the second clockwise switch 102, SM1 represent that the first counterclockwise switch 201, STS1 represent that the second counterclockwise switch 202 is example.
Shown in Fig. 1, Fig. 4-Fig. 7, when two switches in each circuit diagram disconnect, system thinks that limit signal triggers, thereby controller is controlled rotary part and is stopped operating, because each electric limiting is formed in parallel by two switch contacts, therefore according to the basic general knowledge of circuit, only when two collateral contacts all disconnect, corresponding limit signal is just triggered.Wherein, as shown in Figure 1, its contact 1 closure during SM2 original state, contact 2 disconnect, during SM1 original state its contact 1 disconnect, contact 2 closures, when STS2 and STS1 original state all in closure state.Thus, it is closed in these four circuit diagrams, having a switch or contact at least, so these four circuit all can not send spacing restricting the number in trigger unit 301 during in zero-bit.
When trigger unit 301 starts to move along clockwise direction from zero-bit, first pass through SM2, change its contact machine performance, thereby the contact of SM2 1 becomes disconnection from closure, contact 2 becomes closure from disconnection.
When trigger unit 301 continues to move to STS1 place, trigger STS1 its inner contact is disconnected, and now the SM1 contact 2 in parallel with STS1 still remains closed (as shown in Figure 6), limit signal is not triggered thus.
When trigger unit 301 continues to move to STS2 place, trigger STS2 its inner contact is disconnected, and now the SM2 contact 1 in parallel with STS2 disconnected (as shown in Figure 4), therefore limit signal is triggered, controller stops operating control rotary part.
Thus, realized the clockwise electric limiting to rotary part, prevented that rotary part from clockwise rotating excessively.
When first trigger unit 301 passes through STS1 during from STS2 return-to-zero position, because contact 2 open and-shut modes of the SM1 in parallel with STS1 do not change (closed), therefore can not send limit signal, trigger unit 301, again by getting back to smoothly zero-bit after SM2, wherein converts back original state by its state when trigger unit 301 process SM2.
For the counterclockwise sports limiting of trigger unit 301, its process and principle and above-mentioned roughly the same, be therefore not described in detail here.
Wherein, because β 1 and β 2 meets: 360 ° of 180 ° of < β 1 <, 360 ° of 180 ° of < β 2 <, therefore rotary part and trigger unit 301 clockwise or the angle rotating counterclockwise will be over 180, thereby always rotation angle range is over 360 °.
According to the rotary part stopping means for armarium of the embodiment of the present invention, by the first clockwise switch 101 is set, the second clockwise switch 102, the first counterclockwise switch 201 and the second counterclockwise switch 202, thereby at the first clockwise switch 101 with the second clockwise switch 102 is triggered or when the first counterclockwise switch 201 and the second counterclockwise switch 202 are triggered simultaneously simultaneously, controller can be controlled rotary part and stop operating, thereby correctly realize the limit function to the motion of rotary part twocouese, avoid the rotation of rotary part one direction excessively, cause breaking cable, affect armarium normal operation, and this electric limiting structure is spacing reliable, and can realize the rotating range that rotary part surpasses 360 °, practical function is remarkable.
Because rotary part stopping means adopts circuit signal to control turning, stopping of rotary part to rotary part, therefore there is the probability of fault.For example, controller is can to stop operating by control rotary part after receiving spacing restricting the number, but be to be understood that, controller can not stop by control rotary part in direct mechanical ground, but indirectly control rotary part by signal and intermediate member, stop, if when for example driving the drive motors of rotary part to break down or not receiving the stop signal that controller sends, may appear at and trigger after limit signal, although sending control signal, controller stops for controlling rotary part, but because may causing rotary part, some above-mentioned faults continue to rotate according to former direction, thereby cause electric limiting to lose efficacy, easily accidents caused, may cause rotary part stopping means to damage.
In view of this, in order to improve the reliability spacing to rotary part, according to another embodiment of the invention, rotary part stopping means also comprises the 3rd clockwise switch 103 and the 3rd counterclockwise switch 203, as shown in Figure 2.
Shown in Fig. 2, the 3rd clockwise switch 103 is fixed on the clockwise position of the 3rd in frame (the K3 position in Fig. 2), and the 3rd clockwise switch 103 is fixed with respect to rotary part.Wherein the 3rd clockwise position is for turning over along clockwise direction the position of angle γ 1 correspondence from zero-bit.In other words, from zero-bit turns over γ 1 angle clockwise, corresponding shelf position is the fixed position of the 3rd clockwise switch 103, and when rotary part turns to this position, trigger unit 301 will trigger the 3rd clockwise switch 103.
Shown in Fig. 2, the 3rd counterclockwise switch 203 is fixed on the counterclockwise position of the 3rd in frame (the T3 position in Fig. 2), and the 3rd counterclockwise switch 203 is fixed with respect to rotary part.Wherein the 3rd counterclockwise position is for turning in the counterclockwise direction the position of angle γ 2 correspondences from zero-bit.In other words, from zero-bit turns over γ 2 angles counterclockwise, corresponding shelf position is the fixed position of the 3rd counterclockwise switch 203, and when rotary part turns to this position, trigger unit 301 will trigger the 3rd counterclockwise switch 203.Wherein γ 1 and γ 2 meet relational expression: 360 ° of β 1 < γ 1 <, 360 ° of β 2 < γ 2 <.
Preferably, according to one embodiment of present invention, α 1 and α 2 meet: α 1=α 2=90 °.According to one embodiment of present invention, β 1 and γ 1 and β 2 and γ 2 further meet relational expression: 270 ° of 180 ° of < β 1 < γ 1 <, 270 ° of 180 ° of < β 2 < γ 2 <.; for the ordinary skill in the art; can specifically set according to different medical equipment the scope of α 1, β 1 and γ 1 and α 2, β 2 and γ 2; as long as meet: 0 ° of < α 1 < β 1; 360 ° of 180 ° of < β 1 < γ 1 <; 360 ° of 2,180 ° of < β of 0 ° of < α 2 < β, 2 < γ 2 <.And preferably, α 1 is equal with α 2, and β 1 is equal with β 2, and γ 1 and γ 2 equate.
In this embodiment, as shown in Figures 2 and 3, rotary part stopping means fault when trigger unit 301 turns over angle beta 2 in the counterclockwise direction from zero-bit is not so that rotary part stops the rotation, and trigger unit 301 continues to turn in the counterclockwise direction angle γ 2-β 2 and controls rotary parts and stop the rotation to trigger the 3rd counterclockwise switch 203 Time Controllers.
Particularly, when trigger unit 301 turns to the first counterclockwise position in the counterclockwise direction from zero-bit, trigger unit 301 triggers the first counterclockwise switch 201, trigger unit 301 continues to turn in the counterclockwise direction the 3rd clockwise position, trigger unit 301 triggers the 3rd clockwise switch 103, trigger unit 301 continues to turn in the counterclockwise direction the second clockwise position, trigger unit 301 triggers the second clockwise switch 102, trigger unit 301 continues to turn in the counterclockwise direction the second counterclockwise position, trigger unit 301 triggers the second counterclockwise switch 202, now because the first counterclockwise switch 201 and the second counterclockwise switch 202 are all triggered, at rotary part stopping means during in normal operating conditions, controller can be controlled rotary part, and rotary part finally can stop, but after rotary part stopping means breaks down, now rotary part still can be according to being counterclockwise rotated further, thereby trigger unit 301 turns to the 3rd counterclockwise position, trigger unit 301 triggers the 3rd counterclockwise switch 203, thereby controller can be controlled rotary part again, so that rotary part stops operating.That is to say, above-described embodiment can be equivalent to have one-level electric limiting function, and in this embodiment, on one-level electric limiting basis, set up secondary electric limiting, and after losing efficacy, one-level electric limiting can realize spacing counterclockwise to rotary part by secondary electric limiting.
In this embodiment, as shown in Figures 2 and 3, when trigger unit 301 turns over angle beta 1 along clockwise direction from zero-bit due to rotary part stopping means fault so that rotary part does not stop the rotation, and trigger unit 301 continues to turn over along clockwise direction corner γ 1-β 1 and stops the rotation to trigger the 3rd clockwise switch 103 Time Controllers control rotary parts.
Particularly, when trigger unit 301 turns to the first clockwise position along clockwise direction from zero-bit, trigger unit 301 triggers the first clockwise switch 101, trigger unit 301 continues to turn to along clockwise direction the 3rd counterclockwise position, trigger unit 301 triggers the 3rd counterclockwise switch 203, trigger unit 301 continues to turn to along clockwise direction the second counterclockwise position, trigger unit 301 triggers the second counterclockwise switch 202, trigger unit 301 continues to turn to along clockwise direction the second clockwise position, trigger unit 301 triggers the second clockwise switch 102, now because the first clockwise switch 101 and the second clockwise switch 102 are all triggered, at rotary part stopping means during in normal operating conditions, controller can be controlled rotary part, and rotary part finally can stop, but after rotary part stopping means breaks down, now rotary part still can be according to being rotated further clockwise, thereby trigger unit 301 turns to the 3rd clockwise position, trigger unit 301 triggers the 3rd clockwise switch 103, thereby controller can be controlled rotary part again, so that rotary part stops operating.That is to say, in this embodiment, on one-level electric limiting basis, set up secondary electric limiting, and can realize spacing clockwise to rotary part by secondary electric limiting after one-level electric limiting loses efficacy.
In this embodiment, the 3rd clockwise switch 103 and the 3rd counterclockwise switch 203 are two-way non-maintained switch, identical with the second counterclockwise switch 202 with the above-mentioned second clockwise switch 102.
Below with reference to Fig. 2-Fig. 7, rotary part stopping means is simply described in accordance with another embodiment of the present invention for realizing the process to the secondary electric limiting of rotary part, wherein with trigger unit 301, clockwise rotate as example, and take SM2 and represent that the first clockwise switch 101, STS2 represent that the second clockwise switch 102, SM1 represent that the first counterclockwise switch 201, STS1 represent that the second counterclockwise switch 202, STH1 represent that the 3rd counterclockwise switch 203, STH2 represent that the 3rd clockwise switch 103 is example.
Shown in Fig. 4-Fig. 7, when two switches in each circuit diagram disconnect, system thinks that limit signal triggers, thereby controller is controlled rotary part and is stopped operating, because each electric limiting is formed in parallel by two switch contacts, therefore according to the basic general knowledge of circuit, only when two collateral contacts all disconnect, corresponding limit signal is just triggered.Wherein, as shown in Figure 2, its contact 1 closure during SM2 original state, contact 2 disconnect, during SM1 original state its contact 1 disconnect, contact 2 closures, when STS2, STS1, STH2 and STH1 original state all in closure state.Thus, it is closed in these four circuit diagrams, having a switch or contact at least, so these four circuit all can not send spacing restricting the number in trigger unit 301 during in zero-bit.
When trigger unit 301 starts to move along clockwise direction from zero-bit, first pass through SM2, as shown in Figure 3, change SM2 contact machine performance, the contact 1 of SM2 becomes disconnection from closure, and the contact 2 of SM2 becomes closure from disconnection.
When trigger unit 301 continues to move to STH1 place, trigger STH1 its inner contact is disconnected, and now the SM2 contact 2 in parallel with STH1 is closed, therefore limit signal is not triggered.
When trigger unit 301 continues to move to STS1 place, trigger STS1 its inner contact is disconnected, and now the SM1 contact 2 in parallel with STS1 still remains closed, therefore limit signal is not triggered.
When trigger unit 301 continues to move to STS2 place, triggering STS2 disconnects its inner contact, and now the contact 1 of the SM2 in parallel with STS2 has disconnected, therefore limit signal is triggered, controller will be controlled rotary part, if system does not break down, rotary part can stop (this is one-level electric limiting).
If system breaks down while causing rotary part to continue to clockwise rotate, trigger unit 301 will continue to move to STH2 place, triggering STH2 disconnects its inner contact, and now the SM1 contact 1 in parallel with STH2 still remains open, therefore limit signal is triggered again, controller will be controlled rotary part stop operating (this for secondary electric limiting) again.
Thus, realized the clockwise secondary electric limiting to rotary part, prevented that rotary part from clockwise rotating excessively.
When triggering pin, from clockwise extreme position (i.e. the 3rd clockwise position), get back to the process of zero-bit, successively by STS1 and STH1, because the contact open and-shut mode in parallel with STS1 and STH1 do not change, therefore identical with aforementioned process, when triggering pin triggering STS1 and STH1, corresponding limit signal is not triggered, trigger pin and can get back to smoothly zero-bit, and when through SM2, its state is converted back to original state.
For the counterclockwise sports limiting of trigger unit 301, its process and principle and above-mentioned roughly the same, be therefore not described in detail here.
Wherein, because β 1 and β 2 meet respectively: 360 ° of 180 ° of < β 1 <, 360 ° of 180 ° of < β 2 <, therefore rotary part and trigger unit 301 clockwise or the angle rotating counterclockwise will be over 180, thereby always rotation angle range is over 360 °.
Rotary part stopping means in this embodiment has secondary electric limiting, and can to rotary part, carry out spacing by secondary electric limiting after one-level electric limiting lost efficacy, make spacing more reliably, and when system works, can realize spacing to rotary part by one-level electric limiting.
It should be noted that, in foregoing description of the present invention, be the angle in 1 expression clockwise after angle [alpha], β and γ, is the angle in 2 expression counterclockwise after α, β and γ.
Armarium according to an embodiment of the invention is simply described below.
Armarium, comprises the rotary part stopping means for armarium in above-described embodiment according to an embodiment of the invention.
According to one embodiment of present invention, armarium includes but not limited to human body SPECT equipment.
In the description of this description, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, to the schematic statement of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiment or example.In addition, those skilled in the art can engage the different embodiment that describe in this description or example and combine.
Although illustrated and described embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, modification, replacement and modification.
Claims (9)
1. for a rotary part stopping means for armarium, it is characterized in that, comprising:
Frame;
Rotary part, described rotary part is located in described frame rotationally around the rotation axis of described rotary part, the minimum point of the movement locus that the zero-bit that is fixed with trigger unit and described trigger unit on described rotary part is described trigger unit;
The first clockwise switch and the first counterclockwise switch, the described first clockwise switch is fixed on the clockwise position of first in described frame, described the first counterclockwise switch is fixed on the counterclockwise position of first in described frame, the described first clockwise position is for turning over along clockwise direction the position of angle [alpha] 1 correspondence from described zero-bit, the described first counterclockwise position is for turning in the counterclockwise direction the position of described angle [alpha] 2 correspondences from described zero-bit;
The second clockwise switch and the second counterclockwise switch, the described second clockwise switch is fixed on the clockwise position of second in described frame, described the second counterclockwise switch is fixed on the counterclockwise position of second in described frame, the described second clockwise position is for turning over along clockwise direction the position of angle beta 1 correspondence from described zero-bit, the described second counterclockwise position is for turning in the counterclockwise direction the position of described angle beta 2 correspondences from described zero-bit, wherein α 1 and β 1 and α 2 and β 2 meet respectively relational expression: 0 ° of < α 1 < β 1, 360 ° of 180 ° of < β 1 <, 0 ° of < α 2 < β 2, 360 ° of 180 ° of < β 2 <, with
For controlling the controller of described rotary part, wherein:
In described trigger unit, from described zero-bit, turn in the counterclockwise direction angle [alpha] 2 and continue to turn in the counterclockwise direction angle beta 2-α 2 when triggering described the second counterclockwise switch to trigger described the first counterclockwise switch and described trigger unit, described controller is controlled described rotary part and is stopped the rotation; Or
In described trigger unit, from described zero-bit, turn over along clockwise direction angle [alpha] 1 and continue to turn over along clockwise direction angle beta 1-α 1 when triggering the described second clockwise switch to trigger the described first clockwise switch and described trigger unit, described controller is controlled described rotary part and is stopped the rotation.
2. the rotary part stopping means for armarium according to claim 1, is characterized in that, also comprises:
The 3rd clockwise switch and the 3rd counterclockwise switch, the described the 3rd clockwise switch is fixed on the clockwise position of the 3rd in described frame, described the 3rd counterclockwise switch is fixed on the counterclockwise position of the 3rd in described frame, the described the 3rd clockwise position is for turning over along clockwise direction the position of angle γ 1 correspondence from described zero-bit, the described the 3rd counterclockwise position is for turning in the counterclockwise direction the position of described angle γ 2 correspondences from described zero-bit, wherein γ 1 and γ 2 meet respectively 360 ° of relational expression: β 1 < γ 1 <, 360 ° of β 2 < γ 2 <, wherein:
Described in when described trigger unit turns over angle beta 2 in the counterclockwise direction from described zero-bit, rotary part does not stop the rotation, and described trigger unit continue to turn in the counterclockwise direction angle γ 2-β 2 when triggering described the 3rd counterclockwise switch described in controller again control described rotary part and stop the rotation; Or
Described in when described trigger unit turns over angle beta 1 along clockwise direction from described zero-bit, rotary part does not stop the rotation, and described trigger unit continue to turn over along clockwise direction corner γ 1-β 1 when triggering the described the 3rd clockwise switch described in controller again control described rotary part and stop the rotation.
3. the rotary part stopping means for armarium according to claim 2, it is characterized in that, described β 1 and γ 1 and β 2 and γ 2 further meet relational expression: 270 ° of 180 ° of < β 1 < γ 1 <, 270 ° of 180 ° of < β 2 < γ 2 <.
4. the rotary part stopping means for armarium according to claim 2, is characterized in that, described α 1 and α 2, β 1 and β 2 and γ 1 γ 2 meet respectively relational expression: α 1=α 2, β 1=β 2, γ 1=γ 2.
5. the rotary part stopping means for armarium according to claim 4, is characterized in that, described α 1 and α 2 meet: α 1=α 2=90 °.
6. the rotary part stopping means for armarium according to claim 1, is characterized in that, described trigger unit is for triggering pin.
7. the rotary part stopping means for armarium according to claim 1, is characterized in that, the described first clockwise switch and described the first counterclockwise switch are unidirectional maintained switch.
8. the rotary part stopping means for armarium according to claim 2, it is characterized in that, the described second clockwise switch and described the second counterclockwise switch and the described the 3rd clockwise switch and described the 3rd counterclockwise switch are two-way non-maintained switch.
9. an armarium, is characterized in that, comprises according to the rotary part stopping means for armarium described in any one in claim 1-8.
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| CN201310459992.XA CN103536307B (en) | 2013-09-27 | 2013-09-27 | For armarium rotary part stopping means and there is its armarium |
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| CN201310459992.XA CN103536307B (en) | 2013-09-27 | 2013-09-27 | For armarium rotary part stopping means and there is its armarium |
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| CN107272573A (en) * | 2016-04-06 | 2017-10-20 | 上海气焊机厂有限公司 | Automatically controlled stopping means and automatically controlled limit method and automatically controlled back to zero method |
| CN114939792A (en) * | 2022-07-25 | 2022-08-26 | 沈阳机床(集团)有限责任公司 | Five-axis head C-axis rotation angle limiting method |
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Address after: 100084, Beijing, Zhongguancun Tongzhou District science and Technology Park, Tongzhou Jinqiao Technology Industrial base, central section road, No. 17, 17A Applicant after: BEIJING NOVEL MEDICAL EQUIPMENT Ltd. Address before: 100084, Beijing, Zhongguancun Tongzhou District science and Technology Park, Tongzhou Jinqiao Technology Industrial base, central section road, No. 17, 17A Applicant before: Beijing Nucmed Technology Ltd. |
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Address after: 610219 Chengdu Tianfu International Biological City, Chengdu, Sichuan Province (No. 618 Fenghuang Road, Shuangliu District) Patentee after: Chengdu Yongxin Medical Equipment Co.,Ltd. Country or region after: China Address before: No. 17A, Huanke Middle Road, Jinqiao Science and Technology Industrial Base, Tongzhou Park, Zhongguancun Science and Technology Park, Tongzhou District, Beijing, 100084 Patentee before: BEIJING NOVEL MEDICAL EQUIPMENT Ltd. Country or region before: China |