Kitchen range valve body
阅读说明：本技术 灶具阀体 (Kitchen range valve body ) 是由 钟健 苏慧玲 严力峰 俞瑜 郑军妹 于 2020-06-30 设计创作，主要内容包括：本发明公开了一种灶具阀体,其包括外壳以及位于外壳内的旋钮杆和电磁阀,该灶具阀体还包括：感应件,用于检测电磁阀的吸合面状态；驱动件和锁止件,驱动件信号连接至感应件,并连接锁止件,锁止件用于限制旋钮杆进行旋转；当电磁阀的吸合面处于吸合状态时,感应件传递感应信号至驱动件,驱动件驱动锁止件移动并解除对旋钮杆的旋转限制。本发明提供的灶具阀体通过旋钮杆和电磁阀之间设置感应件、驱动件和锁止件,来实现在吸合面吸合后能传递感应信号触发驱动件,对锁止件进行驱动,解开旋钮杆的旋转限制,实现了阀针下压至电磁阀吸合的行程B等于锁止件解开的行程A,解决了锁止件解开的行程需要设置较长距离的问题,改善了用户体验。(The invention discloses a stove valve body, which comprises a shell, a knob rod and an electromagnetic valve, wherein the knob rod and the electromagnetic valve are positioned in the shell, and the stove valve body also comprises: the sensing part is used for detecting the state of the suction surface of the electromagnetic valve; the driving piece is connected with the sensing piece in a signal mode and connected with the locking piece, and the locking piece is used for limiting the knob rod to rotate; when the suction surface of the electromagnetic valve is in a suction state, the sensing part transmits a sensing signal to the driving part, and the driving part drives the locking part to move and removes the rotation limitation on the knob rod. According to the stove valve body provided by the invention, the induction part, the driving part and the locking part are arranged between the knob rod and the electromagnetic valve, so that the induction signal can be transmitted to trigger the driving part after the suction surface is sucked, the locking part is driven, the rotation limitation of the knob rod is released, the valve needle is pressed down until the stroke B of the suction of the electromagnetic valve is equal to the stroke A of the release of the locking part, the problem that the release stroke of the locking part needs to be set for a long distance is solved, and the user experience is improved.)
1. The utility model provides a cooking utensils valve body, its includes the shell and is located knob pole and solenoid valve in the shell, its characterized in that, cooking utensils valve body still includes:
the induction part is used for detecting the state of the suction surface of the electromagnetic valve;
the driving piece is connected with the sensing piece in a signal mode and is connected with the locking piece, and the locking piece is used for limiting the knob rod to rotate;
when the suction surface of the electromagnetic valve is in a suction state, the sensing part transmits a sensing signal to the driving part, and the driving part drives the locking part to move and remove the rotation limitation on the knob rod.
2. The cooktop valve body of claim 1, wherein a bayonet is disposed on a side of the knob stem, and the locking member is positioned in the bayonet and restricts rotation of the knob stem;
when the locking piece moves out of the bayonet, the locking piece releases the rotation limitation of the knob rod.
3. The cooktop valve body of claim 1, wherein the suction surface of the solenoid valve comprises a fixed surface and a moving surface, the fixed surface and the moving surface contacting each other when the suction surface of the solenoid valve is in a suction state;
the driving part is electrically connected with the sensing part, the sensing part can be communicated with a circuit of the driving part when the suction surface of the electromagnetic valve is in a suction state, and the driving part generates driving force acting on the locking part.
4. The cooktop valve of claim 3, wherein the induction member comprises:
the two ends of the connecting part are respectively and electrically connected to the driving part and the fixing surface;
conflict portion, the one end electricity of conflict portion is connected to the driving piece, the other end of conflict portion is close to the stationary plane sets up, works as when the actuation face of solenoid valve is in the actuation state, it drives to remove the face the other end of conflict portion with the stationary plane electricity is connected, conflict portion with connecting portion constitute the return circuit that switches on of driving piece.
5. The cooker valve body of claim 4, wherein the other end of the collision portion is disposed between the fixed surface and the movable surface, the fixed surface is provided with a receiving groove matched with the other end of the collision portion, and when the suction surface of the electromagnetic valve is in a suction state, the movable surface pushes the other end of the collision portion to be disposed in the receiving groove.
6. The cooktop valve body of claim 4, wherein the other end of the interference portion is electrically connected to the moving surface, and the moving surface and the fixed surface can be in communication with each other when in a suction state.
7. The cooktop valve body of claim 3, wherein one end of the actuating member is electrically connected to the sensing member, and the other end of the actuating member is connected to the locking member;
and the other end of the driving piece is provided with an electromagnetic element, when the suction surface of the electromagnetic valve is in a suction state, the circuit of the electromagnetic element is switched on to generate magnetism, the electromagnetic element generates attraction force on the locking piece, and the locking piece moves towards the direction far away from the knob rod.
8. The cooktop valve of claim 7, wherein an elastic member is coupled between the other end of the driving member and the locking member, the elastic member being compressed when the locking member is disengaged from limiting rotation of the knob stem.
9. The cooking utensil valve body of claim 2, wherein the knob stem comprises a knob stem body and a limiting disc, the limiting disc is arranged around the surface of the knob stem body, the limiting disc and the knob stem body are fixed together along the rotation direction of the knob stem, and the bayonet is positioned at the edge of the limiting disc.
10. The cooktop valve body of claim 9, wherein the spacing disk is slidable relative to the knob stem along an axis of the knob stem.
11. The cooktop valve body of any of claims 1-10, wherein the driver is fixedly attached to a surface of the outer shell.
Technical Field
The invention particularly relates to a stove valve body.
Background
The existing stove valve body comprises a shell and a valve core arranged in the shell, wherein the valve core comprises a valve needle and a knob rod, the knob rod is connected above the valve needle, the lower part of the valve needle is abutted against a convex block at one end of a push rod, and a push arm at the other end of the push rod is abutted against one end of an electromagnetic valve. When the knob rod is pressed down, the knob rod drives the valve needle to move down, the igniter is triggered to ignite in the process, the valve needle presses the convex block downwards to drive the ejector rod to rotate, so that the push arm at the other end of the ejector rod pushes the electromagnetic valve along with the rotation of the ejector rod, and two attraction surfaces of the electromagnetic valve are mutually contacted and attracted. Meanwhile, when the knob rod is pressed down to a certain height, the child lock can be unlocked, so that the knob rod can be rotated to drive the valve core to rotate, the gas channel is communicated, and the burner generates flame immediately.
It can be found that, because it is necessary to ensure that the suction surface of the solenoid valve is in contact when the child lock is unlocked, for the setting of the child lock, the stroke B of pressing the valve needle down to suction the solenoid valve needs to be smaller than the stroke a of pressing the valve needle down to unlock the child lock, but because B is smaller than a, when the child lock can be unlocked, the solenoid valve is already sucked, so it is best that a and B are equal to avoid excessive pushing and pressing of the solenoid valve. However, in view of manufacturing process issues, it is difficult to ensure that B remains exactly equal to a due to tolerances in the manufacturing process. If B is larger than A, the problem of flameout due to loosening of hands can occur, namely, the child lock is unlocked, the electromagnetic valve is not attracted, and the successful ignition can not be realized even if the knob is rotated. Therefore, on the premise that B is smaller than A, flameout caused by loosing one's hand can be avoided, so that the child lock needs to be longer, and user experience is affected.
Disclosure of Invention
The invention aims to overcome the defects that the unlocking distance of a child lock is too long and the user experience is influenced in the prior art, and provides a stove valve body.
The invention solves the technical problems through the following technical scheme:
the utility model provides a cooking utensils valve body, its includes the shell and is located knob pole and solenoid valve in the shell, its characterized in that, cooking utensils valve body still includes:
the induction part is used for detecting the state of the suction surface of the electromagnetic valve;
the driving piece is connected with the sensing piece in a signal mode and is connected with the locking piece, and the locking piece is used for limiting the knob rod to rotate;
when the suction surface of the electromagnetic valve is in a suction state, the sensing part transmits a sensing signal to the driving part, and the driving part drives the locking part to move and remove the rotation limitation on the knob rod.
In this scheme, through set up response piece, driving piece and locking piece between knob pole and the solenoid valve at cooking utensils valve body to realize the state of response solenoid valve actuation face, and control and trigger the driving piece based on this state, and make the driving piece drive the locking piece, untie the purpose of locking piece to the rotation restriction of knob pole. After through above-mentioned mode, can realize untiing the restriction to the knob pole along the rotation direction degree of freedom in the twinkling of an eye of actuation face contact, namely through inductive signal to the locking piece of transmission contact when actuation face contacts each other to the realization makes the needle push down to the stroke B of solenoid valve actuation equal to the stroke A that the knob pole can rotate (the stroke that the child lock unties), solved and make the stroke that the child lock unties for avoiding the hand loosening flame-out longer, lead to the user to press down could rotate the knob pole after the longer distance, influence user experience's problem.
Preferably, a bayonet is arranged on the side surface of the knob rod, and the locking piece is positioned in the bayonet and limits the knob rod to rotate;
when the locking piece moves out of the bayonet, the locking piece releases the rotation limitation of the knob rod. The knob rod is limited to rotate through the locking piece, the structure is simple to set, operation is convenient, and free rotation of the knob rod can be achieved when the locking piece moves out of the bayonet.
Preferably, the suction surface of the solenoid valve comprises a fixed surface and a moving surface, and when the suction surface of the solenoid valve is in a suction state, the fixed surface and the moving surface are in contact with each other;
the driving part is electrically connected with the sensing part, the sensing part can be communicated with a circuit of the driving part when the suction surface of the electromagnetic valve is in a suction state, and the driving part generates driving force acting on the locking part.
In this scheme, switch on the circuit of driving piece through the state of the actuation face of response piece perception solenoid valve, make the driving piece produce one and can make the locking piece carry out the drive power that removes to the guide locking piece removes, and then realize the state change to the knob pole. Through the way that the circuit is connected, response speed is fast, realizes just can realize untieing the knob pole in the twinkling of an eye of actuation state.
Preferably, the sensing member includes:
the two ends of the connecting part are respectively and electrically connected to the driving part and the fixing surface;
conflict portion, the one end electricity of conflict portion is connected to the driving piece, the other end of conflict portion is close to the stationary plane sets up, works as when the actuation face of solenoid valve is in the actuation state, it drives to remove the face the other end of conflict portion with the stationary plane electricity is connected, conflict portion with connecting portion constitute the return circuit that switches on of driving piece.
In this scheme, the other end of conflict portion is close to the stationary plane, when the actuation face of solenoid valve is in the actuation state, it promotes the other end of conflict portion to be close to the stationary plane and contacts until it and stationary plane, at this moment, conflict portion, the solenoid valve part and the connecting portion that set up the stationary plane constitute the intercommunication return circuit, and then the switching-on return circuit of switch-on driving piece, this kind promotes whether the mode that makes conflict portion contact stationary plane can be according to the state perception solenoid valve actuation face actuation of moving the face, the response is accurate, and the structure sets up conveniently.
Preferably, the other end of conflict portion set up in the stationary plane with remove between the face, be provided with on the stationary plane with the other end assorted storage tank of conflict portion, work as when the actuation face of solenoid valve is in the actuation state, it promotes to remove the face the other end of conflict portion is arranged in the storage tank. The other end complex mode of storage tank and conflict portion makes the structure of conflict portion not influence the stability of solenoid valve actuation face, and when the stationary plane and the face of removing laminated each other, the other end of conflict portion just is located the storage tank, and the normal actuation of actuation face of solenoid valve.
Preferably, the other end of the abutting portion is electrically connected to the moving surface, and the moving surface and the fixing surface can be conducted with each other when in a suction state. The other end lug connection of conflict face is in removing the face, and when removing the face and the stationary phase actuation, conflict portion and connecting portion switch on each other through removing face and actuation face to the actuation face structure of direct utilization solenoid valve realizes the effect of switching on, need not to set up middle trigger device and makes the structure setting simpler.
Preferably, one end of the driving member is electrically connected to the sensing member, and the other end of the driving member is connected to the locking member;
and the other end of the driving piece is provided with an electromagnetic element, when the suction surface of the electromagnetic valve is in a suction state, the circuit of the electromagnetic element is switched on to generate magnetism, the electromagnetic element generates attraction force on the locking piece, and the locking piece moves towards the direction far away from the knob rod. The driving piece attracts the locking piece through magnetism to untie the limitation on the knob rod, so that a large structure which is required to be connected with the locking piece and the knob rod is not required to be arranged between the driving piece and the locking piece, and the locking piece can move towards the driving room through the attraction force, namely, the locking piece can move towards the direction far away from the knob rod.
Preferably, an elastic member is connected between the other end of the driving member and the locking member, and when the locking member releases the rotation restriction on the knob lever, the elastic member is in a compressed state. The elastic member is used for providing acting force for restoring the locking member to the rotation limit of the knob rod when the driving member stops driving the locking member.
Preferably, the knob stem comprises a knob stem body and a limiting disc, the limiting disc is arranged around the surface of the knob stem body, the limiting disc and the knob stem body are fixed together along the rotation direction of the knob stem, and the bayonet is located at the edge of the limiting disc. The limiting disc extends outwards relative to the knob rod body, the limiting disc and the knob rod body rotate synchronously, and the locking piece is convenient to set a short distance to achieve rotation limitation on the knob rod.
Preferably, the limiting disc is slidable relative to the knob stem along the axial direction of the knob stem. The limiting disc can slide along the axial direction of the knob rod body, so that a vertical space allowing the limiting disc to pass through does not need to be arranged in the axial direction of the knob rod body, and the knob rod can be driven to rotate only after unlocking.
Preferably, the driving member is fixedly connected to a surface of the housing to ensure stability during operation.
On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.
The positive progress effects of the invention are as follows: the cooker valve body provided by the invention realizes the state of the attraction surface of the induction electromagnetic valve by arranging the induction part, the driving part and the locking part between the knob rod and the electromagnetic valve, so that the induction part can transmit an induction signal to trigger the driving part after the attraction surface is attracted, the locking piece is driven, so that the rotation limitation of the locking piece to the knob rod is released, the locking piece is moved at the moment of contact of the suction surface, the locking piece is triggered to be released when the valve needle is pressed down to the stroke B of the suction of the electromagnetic valve, the pressing stroke at the moment is also the stroke A of the knob rod capable of rotating, thereby solving the problem that a longer distance is needed to be set for the unlocking stroke of the locking piece to avoid the unlocking and flameout of hands, simplifying the structure in the valve body, meanwhile, other structures are not needed to be arranged to absorb redundant pressing distance, ignition can be achieved after pressing to the attraction face, and user experience is improved.
Drawings
Fig. 1 is a schematic structural view of a cooker valve body according to a preferred embodiment of the present invention.
Fig. 2 is a schematic structural view of a cooker valve body according to a preferred embodiment of the invention.
Fig. 3 is a partial structural view of a portion a in fig. 2.
FIG. 4 is a schematic view of a connection structure of the driving member and the locking member according to the preferred embodiment of the invention.
Fig. 5 is a schematic cross-sectional structure view of a cooker valve body according to a preferred embodiment of the invention.
Fig. 6 is a partial structural view of a portion B in fig. 5.
Description of reference numerals:
outer casing 1
Knob rod 2
Bayonet 21
Knob stem body 22
Limiting disc 23
Electromagnetic valve 3
Fastening surface 31
Moving surface 32
Accommodation groove 33
Induction part 4
Connecting part 41
Interference part 42
Driving member 5
Electromagnetic element 51
Locking piece 6
Push
Detailed Description
The present invention will be more fully described by way of a preferred embodiment in conjunction with the accompanying drawings, which are not intended to limit the scope of the invention thereto.
As shown in fig. 1-6, the present embodiment provides a stove valve body, which includes a housing 1, and a knob stem 2 and a solenoid valve 3 located in the housing 1, and the stove valve body further includes: the electromagnetic valve comprises a sensing piece 4, a driving piece 5 and a locking piece 6, wherein the sensing piece 4 is used for detecting the state of an attraction surface of the electromagnetic valve 3; the driving piece 5 is connected with the sensing piece 4 through signals and is connected with the locking piece 6, and the locking piece 6 is used for limiting the knob rod 2 to rotate; when the suction surface of the electromagnetic valve 3 is in the suction state, the sensing part 4 transmits a sensing signal to the driving part 5 after detecting the state, and the driving part 5 drives the locking part 6 to move and removes the rotation limitation on the knob rod 2 based on the sensing signal.
The cooker valve body realizes the purpose of sensing the state of the suction surface of the electromagnetic valve 3 by arranging the sensing part 4, the driving part 5 and the locking part 6 between the knob rod 2 and the electromagnetic valve 3. The sensing part 4 can transmit a sensing signal to trigger the driving part 5 after the suction surface is sucked, and the driving part 5 drives the locking part 6 to move, so that the rotation limitation of the locking part 6 to the knob rod 2 is unlocked. Through the mode, the limitation of the knob rod 2 along the direction of the rotational freedom degree is unlocked instantly when the suction surface is contacted, the valve needle is pressed down to the stroke B of the electromagnetic valve 3 for sucking, the stroke B is equal to the stroke A of the knob rod 2 capable of rotating freely (namely the stroke of unlocking the child lock), the problem that the stroke of unlocking the knob rod 2 relative to the child lock needs to be set for a long distance to avoid flameout of hands, and a user can rotate the knob only after pressing down a long distance to influence the user experience is solved.
As shown in fig. 3, a bayonet 21 is arranged at a side position of the knob stem 2, and the locking member 6 is positioned in the bayonet 21 and limits the knob stem 2 to rotate; when the lock member 6 moves out of the bayonet 21, the lock member 6 releases the rotation restriction of the knob lever 2. The knob rod 2 is limited to rotate through the locking piece 6, the structure is simple to set, operation is convenient, and free rotation of the knob rod 2 can be achieved when the locking piece 6 moves out of the bayonet 21. The drive member 5 is fixedly connected to the surface of the housing 1 to ensure stability during operation.
Further, in this embodiment, the knob rod 2 is configured to include a knob rod body 22 and a limiting disc 23, the limiting disc 23 is disposed around the surface of the knob rod body 22 and extends outward relative to the knob rod body 22, and the limiting disc 23 and the knob rod body 22 are mutually positioned along the rotation direction of the knob rod 2, so that the limiting disc 23 can rotate synchronously with the knob rod body 22, and the bayonet 21 is disposed at the edge position of the limiting disc 23, so that the locking member 6 can rotate by limiting the limiting disc 23, and the purpose of limiting the rotation of the knob rod body 22 is achieved at the same time.
In this embodiment, the limiting disc 23 is slidable along the axis direction of the knob stem body 22 relative to the knob stem body 22, therefore, the limiting disc 23 can be positioned on the housing 1 of the cooker valve body along the height direction, and does not need to move up and down along with the knob stem body 22 synchronously, in this case, because the bayonet 21 does not move up and down, therefore, the locking piece 6 only needs to set up a short size relative to the bayonet 21 to realize the limitation on the rotational freedom degree of the knob stem 2, so as to effectively reduce the size of the locking piece 6, the structure of the whole cooker valve body is simpler, and the reliability is higher.
Meanwhile, since the stopper disk 23 can slide along the axial direction of the knob stem body 22, a vertical space allowing the stopper disk 23 to pass through is not required to be provided in the axial direction of the knob stem body 22, and only a space allowing the stopper disk 23 to rotate is provided after the restriction in the rotational degree of freedom direction is released.
As shown in fig. 5 and 6, the attraction surface of the solenoid valve 3 includes a fixed surface 31 and a moving surface 32, and when the attraction surface of the solenoid valve 3 is in the attraction state, the fixed surface 31 and the moving surface 32 are in contact with each other; the driving member 5 is electrically connected to the sensing member 4, the sensing member 4 can be connected to a circuit of the driving member 5 when the suction surface of the solenoid valve 3 is in a suction state, and the driving member 5 generates a driving force acting on the locking member 6. The driving force generated by the driving piece 5 can guide the locking piece 6 to move, so that the state of the knob rod 2 can be changed, the response speed is high in a circuit connection mode, and the knob rod 2 can be unlocked at the moment of the suction state.
Specifically, the sensing member 4 in this embodiment specifically includes the following structure to achieve the purpose of detecting the attraction state of the fixed surface 31 and the moving surface 32.
The sensing member 4 includes a connection portion 41 and an interference portion 42. As shown in fig. 6, two ends of the connecting portion 41 are electrically connected to the driving member 5 and the fixing surface 31 respectively, that is, the fixing surface 31 is electrically connected to the driving member 5, and one end of the abutting portion 42 is electrically connected to the driving member 5, and the other end is disposed near the fixing surface 31 and between the fixing surface 31 and the moving surface 32. When the suction surface of the solenoid valve 3 is in a suction state, that is, the fixed surface 31 and the moving surface 32 are tightly attached to each other (not shown in the figure), the moving surface 32 pushes the interference portion 42 to contact the fixed surface 31 along the suction direction, so as to be electrically connected to the fixed surface 31, so that the interference portion 42 and the connecting portion 41 form a conduction loop which is conducted to the driving member 5 through the fixed surface 31. In this case, a current can be transmitted to the driver 5 through the conduction loop to constitute an induction signal for driving the movement of the locking piece 6 and releasing the restriction of the rotational degree of freedom of the knob lever 2.
As shown in fig. 6, the fixed surface 31 is provided with a receiving groove 33 matching with the other end of the interference portion 42, and when the attraction surface of the solenoid valve 3 is in the attraction state, the moving surface 32 pushes the other end of the interference portion 42 to be disposed in the receiving groove 33, so as to prevent the interference portion 42 from affecting the effective attachment of the fixed surface 31 and the moving surface 32.
In this scheme, the other end of conflict portion 42 is close to stationary plane 31, when the actuation face of solenoid valve 3 is in the actuation state, it is close to stationary plane 31 until it contacts with stationary plane 31 that the other end that moves face 32 promotion conflict portion 42 is close to, this moment, conflict portion 42, solenoid valve 3 part and connecting portion 41 that set up stationary plane 31 constitute the intercommunication return circuit, and then the switching-on return circuit of switch-on driving piece 5, this kind promotes the mode that makes conflict portion 42 contact stationary plane 31 through moving face 32 can be according to the actuation whether of the 3 actuation faces of state perception solenoid valve of moving face 32, the response is accurate, and the structure sets up conveniently. The structure of the interference portion 42 does not affect the stability of the suction surface of the solenoid valve 3 through the above-mentioned matching manner, when the fixed surface 31 and the moving surface 32 are mutually attached, the other end of the interference portion 42 is just located in the accommodating groove 33, and the suction surface of the solenoid valve 3 is normally sucked.
Of course, in other embodiments, the other end of the abutting portion 42 may be directly electrically connected to the moving surface 32, and the moving surface 32 and the fixing surface 31 can be conducted with each other when they are in the attraction state, so that the two attraction surfaces of the solenoid valve 3 are directly utilized to transmit electric energy, and the conduction function is directly realized without providing an intermediate triggering device or moving device, and the abutting portion 42 only needs to be continuously connected to the moving surface 32, so that the structure setting is simpler.
In addition, regarding the arrangement manner between the driving member 5 and the locking member 6, the present embodiment provides a better scheme for driving the driving member 5 to drive the locking member 6 to move based on the sensing signal: as shown in fig. 3 and 4, the driving member 5 is electrically connected to the sensing member 4, and an electromagnetic element 51 is disposed on a side of the driving member 5 close to the locking member 6, and the electromagnetic element 51 is disposed on a side of the locking member 6 away from the knob stem 2. When the suction surface of the electromagnetic valve 3 is in the suction state, the driving member 5 supplies power to the electromagnetic element 51 based on the induction signal, so that the electromagnetic element 51 generates magnetism, and the electromagnetic element 51 generates magnetic attraction force on the locking member 6 to attract the locking member 6 to move towards the direction far away from the knob rod 2. As shown in fig. 4. The driver 5, the locking member 6 and the knob lever 2 do not need to be large and connected to each other, and the locking member 6 is moved in the direction between the drivers, that is, in the direction away from the knob lever 2 by the suction force.
Preferably, an elastic member may be connected between the other end of the driving member 5 and the locking member 6, and the elastic member is in a compressed state when the locking member 6 releases the rotation restriction of the knob lever 2. The elastic member is used to provide a force for returning the lock member 6 to the position for restricting the rotation of the knob lever 2 when the driver 5 stops driving the lock member 6, so that the lock member 6 can be returned to the position for restricting the rotation of the knob lever 2 when the electromagnetic element 51 is de-energized.
When the stove valve body is opened, the knob rod 2 is pressed downwards, the lower part of the knob rod 2 is abutted against a convex block at one end of a top rod of the stove valve body, one end of the top rod rotates under the action of downward pressure, and a
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
- 上一篇：一种医用注射器针头装配设备
- 下一篇：一种换流阀在线监测与评估的方法及系统