CN115978217A

CN115978217A - Sealing valve

Info

Publication number: CN115978217A
Application number: CN202211657607.8A
Authority: CN
Inventors: 张华�; 江汉忠; 于仁标
Original assignee: Nantong Zhengda Carbon Products Co ltd
Current assignee: Nantong Zhengda Carbon Products Co ltd
Priority date: 2022-12-22
Filing date: 2022-12-22
Publication date: 2023-04-18

Abstract

The invention relates to the technical field of sealing valves, in particular to a sealing valve which comprises a valve body, a valve rod, a control box and a flashboard, wherein the valve rod is arranged in the valve body; a first cavity and a liquid channel are respectively arranged in the valve body, and two ends of the liquid channel are communicated with connecting pipes; the other end of the valve rod penetrates through one end of the control box and extends into the control box, a second cavity is arranged in the control box, four adjusting assemblies are arranged in the second cavity at equal angles, and the other end of the valve rod is connected with the four adjusting assemblies in a sliding mode; according to the invention, through the matching of the four adjusting assemblies and the valve rod, when the valve rod is inclined, the position of the valve rod can be conveniently and timely adjusted through the adjusting assemblies at corresponding positions, so that the valve rod is always kept vertical, the sealing block in the valve body is prevented from being in a deformation state for a long time, the aging speed of the sealing block is reduced, the sealing property of the sealing block is improved, and the service life of the sealing block is prolonged.

Description

Sealing valve

Technical Field

The invention belongs to the technical field of sealing valves, and particularly relates to a sealing valve.

Background

Valves are fittings for pipes that are used to open and close the pipe, control flow direction, regulate and control parameters of the transport medium, such as temperature, pressure and flow. The valve is a control part in a fluid conveying system and has the functions of stopping, regulating, guiding, preventing counter flow, stabilizing pressure, shunting, overflowing, relieving pressure and the like.

The valve rod of the existing valve can only be vertically installed, and has the following defects: 1. because the fluid medium pressure inside the valve body is very high, the valve body is inside to be full of high-pressure fluid for the valve rod produces the slope of certain angle, can take sealing rubber to take place the deformation and lead to the water stain infiltration, and sealing performance reduces. 2. When the valve rod inclines, the straightening mechanism is not arranged to adjust the valve rod in time, so that the aging speed of the deformed sealing rubber is accelerated, and the service life of the valve is shortened. For example, CN112682526A discloses a dual-sealing valve, which has no straightening mechanism on the valve body, and when the valve stem is inclined, the valve stem cannot be adjusted quickly in time. Therefore, a need exists for a sealing valve.

Disclosure of Invention

In order to solve the problems, the invention provides a sealing valve which comprises a valve body, a valve rod, a control box and a flashboard;

a first cavity and a liquid channel are respectively formed in the valve body, two ends of the liquid channel are communicated with a connecting pipe, and a flange is fixed at one end of the connecting pipe;

one end of the control box is fixed with one end of the valve body, one end of the valve rod penetrates through one end of the valve body and extends into the first cavity, the valve rod is in threaded connection with the valve body, the flashboard is rotatably connected to one end of the valve rod, and the other end of the flashboard is movably inserted into the liquid channel;

the other end of the valve rod penetrates through one end of the control box and extends into the control box, a second cavity is arranged in the control box, a levelness detection sensor is mounted at the other end of the valve rod, four adjusting assemblies are arranged in the second cavity at equal angles, and the other end of the valve rod is connected with the four adjusting assemblies in a sliding mode;

every group adjusting part includes transfer line, correction board and first motor, the length of correcting the board is half of valve rod length, just the installation direction of correcting the board is unanimous with the installation direction of valve rod, one side of correcting the board is connected through the lateral wall of two telescopic links and second cavity, just one side of correcting the board is rotated with the one end of transfer line and is connected, four third cavities have been seted up to the inside of control box, the other end threaded connection of transfer line extends to the inside of one of them third cavity at the lateral wall of second cavity, and the other end of transfer line rotates with the lateral wall of third cavity to be connected, the other end of transfer line passes through first motor drive, the other end at the valve rod is installed to levelness detection sensor.

Furthermore, the transmission rod comprises a second screw rod and a first sleeve, one end of the second screw rod is movably inserted into one end of the first sleeve through a limiting component, two ends of the first sleeve are rotatably connected with the side wall of the third cavity, a first gear is fixed on the outer wall of the other end of the first sleeve, the first motor is embedded in the side wall of the third cavity, a second gear is fixed on an output shaft of the first motor, and the first gear is meshed with the second gear.

Further, spacing subassembly includes two stoppers, two the stopper is fixed at the one end outer wall of second screw rod, and two the stopper is the symmetry setting, the gliding spacing groove of two stoppers of confession is seted up to first sheathed tube inner wall.

Furthermore, the other end of the second screw penetrates through the side wall of the second cavity and is installed in the middle of the correction plate, two telescopic rods located on the correction plate are located on two sides of the second screw respectively, and the installation direction of the telescopic rods is consistent with that of the second screw.

Furthermore, the correction plate comprises a moving plate, two opposite sides of the moving plate are arc-shaped surfaces, a sliding groove is formed in one of the arc-shaped surfaces, and the other two sides of the moving plate are inclined surfaces.

Furthermore, the telescopic rod comprises a second sleeve, an inner rod, a stop block and a spring, the stop block and the spring are located inside the second sleeve, one end of the inner rod penetrates through one end of the second sleeve to be fixed with one side of the stop block, and the spring is located on the other side of the stop block.

Further, the valve rod includes first screw rod and fixed plate, the one end of first screw rod is rotated with one side of fixed plate and is connected, angle such as lateral wall of fixed plate is fixed with four lugs, the lug is located the inside of spout, the second motor is installed to the opposite side of fixed plate, the one end of first screw rod is passed the fixed plate and is fixed with the output shaft of second motor, the groove of stepping down that supplies the second motor to get into is seted up to the one end of second cavity.

Further, the flashboard includes separation board and circulation board, the one end of circulation board and the one end fixed connection of separation board, and the circulation board is the slope setting with the lateral wall of separation board junction, the through-hole has been seted up to one side of circulation board, liquid channel's inner wall is seted up and is supplied the other end male recess of circulation board, and the notch department of recess installs first sealed piece, the other end of separation board is fixed with the connecting block, the one end of connecting block is rotated with the other end of first screw rod and is connected.

Further, the sealed piece of second is all installed at the both ends of first cavity, the connecting block includes diaphragm and riser, one side of diaphragm and the one end fixed connection of riser, just the both sides of riser are the slope setting, one the through hole that supplies the riser other end to run through is seted up to the sealed piece of second, another the sealed piece of second cup joints the outside at first screw rod.

Further, still include the controller, the lateral wall at the control box is installed to the controller, the levelness detects the sensor and fixes the other end at the fixed plate, just levelness detects sensor and controller electric connection, the controller still respectively with first motor and second motor electric connection.

The invention has the beneficial effects that:

1. according to the invention, through the matching of the four adjusting assemblies and the valve rod, when the valve rod is inclined, the position of the valve rod can be conveniently and timely adjusted through the adjusting assemblies at corresponding positions, so that the valve rod is always kept vertical, the sealing block in the valve body is prevented from being in a deformation state for a long time, the aging speed of the sealing block is reduced, the sealing property of the sealing block is improved, and the service life of the sealing block is prolonged.

2. The invention is also provided with a controller, whether the valve rod is in an inclined state or not can be detected conveniently in time through the matching of the levelness detection sensor and the valve rod, a signal is transmitted to the controller in time, and the first motor at the corresponding position is started through the controller to drive the transmission rod to move, so that the automatic adjustment is carried out.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

FIG. 1 shows a schematic cross-sectional view of a valve closing according to an embodiment of the invention;

FIG. 2 shows a schematic cross-sectional view of a valve opening according to an embodiment of the invention;

FIG. 3 shows an enlarged schematic view at A in FIG. 2 according to an embodiment of the invention;

FIG. 4 shows a schematic view of a drive link construction according to an embodiment of the invention;

FIG. 5 shows a schematic view of a corrective plate construction according to an embodiment of the invention;

FIG. 6 is a schematic cross-sectional view of a telescopic rod according to an embodiment of the present invention;

FIG. 7 shows a schematic view of a valve stem configuration according to an embodiment of the invention;

FIG. 8 shows a ram configuration schematic according to an embodiment of the present invention.

In the figure: 1. a valve body; 2. a valve stem; 201. a first screw; 202. a fixing plate; 203. a second motor; 3. a gate plate; 301. a barrier plate; 302. a flow-through plate; 303. a through hole; 4. a control box; 5. an adjustment assembly; 51. a transmission rod; 511. a first sleeve; 512. a first gear; 513. a second screw; 514. a second gear; 52. straightening a plate; 521. moving the plate; 522. a chute; 53. a first motor; 6. a telescopic rod; 601. a second sleeve; 602. an inner rod; 603. a stopper; 604. a spring; 7. a connecting pipe; 8. a flange; 9. a first cavity; 10. a liquid channel; 11. a first seal block; 12. a second seal block; 13. a second cavity; 14. a third cavity; 15. a limiting block; 16. a limiting groove; 17. a levelness detection sensor; 18. a controller; 19. a bump; 20. and (7) connecting the block.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

The embodiment of the invention provides a sealing valve, as shown in fig. 1, comprising a valve body 1, a valve rod 2, a control box 4 and a gate plate 3; a first cavity 9 and a liquid channel 10 are respectively arranged in the valve body 1, one end of the first cavity 9 is communicated with one side of the liquid channel 10, two ends of the liquid channel 10 are communicated with connecting pipes 7, one end of each connecting pipe 7 is fixedly provided with a flange 8, and the valve body 1 is conveniently connected with a mounted water pipe through the flange 8;

one end of the control box 4 is fixed with one end of the valve body 1, one end of the valve rod 2 penetrates through one end of the valve body 1 and extends into the first cavity 9, the valve rod 2 is in threaded connection with the valve body 1, the flashboard 3 is rotatably connected to one end of the valve rod 2, the other end of the flashboard 3 is movably inserted into the liquid channel 10, and the flashboard 3 is driven by the valve rod 2 to move so as to block or circulate liquid entering the liquid channel 10;

the other end of valve rod 2 passes the one end that passes control box 4 and extends to the inside of control box 4, and the inside of control box 4 is provided with second cavity 13, and the other end of valve rod 2 installs levelness detection sensor 17, and levelness detection sensor 17's one end electric connection has controller 18, and the angle such as inside of second cavity 13 is provided with four adjusting part 5, and the other end of valve rod 2 all with four adjusting part 5 sliding connection.

As shown in fig. 2, each set of adjusting assembly 5 includes a transmission rod 51, a correcting plate 52 and a first motor 53, the length of the correcting plate 52 is half of the length of the valve rod 2, the installation direction of the correcting plate 52 is the same as the installation direction of the valve rod 2, one side of the correcting plate 52 is connected with the side wall of the second cavity 13 through two telescopic rods 6, one side of the correcting plate 52 is rotatably connected with one end of the transmission rod 51, four third cavities 14 are formed in the control box 4, the other end of the transmission rod 51 is screwed to the side wall of the second cavity 13 and extends into one of the third cavities 14, the other end of the transmission rod 51 is rotatably connected with the side wall of the third cavity 14, the other end of the transmission rod 51 is driven by the first motor 53, whether the valve rod 2 is tilted or not is sensed through the levelness detecting sensor 17, and then a signal is transmitted to the controller 18 for analysis, when the valve rod 2 is tilted, the transmission rod 51 is driven to rotate by the first motor 53 in a corresponding position according to the tilting direction of the valve rod 2, so that the transmission rod 51 drives the valve rod 52 to push the valve rod 52 in a direction opposite to the tilting direction of the valve rod 2, thereby facilitating the sealing block to prevent the sealing block from being aged, and further reducing the sealing performance of the sealing block sealing in a long time.

As shown in fig. 3 and 4, the transmission rod 51 includes a second screw 513 and a first sleeve 511, one end of the second screw 513 is movably inserted into one end of the first sleeve 511 through a limiting component, both ends of the first sleeve 511 are rotatably connected to the side wall of the third cavity 14, a first gear 512 is fixed on the outer wall of the other end of the first sleeve 511, the first motor 53 is embedded in the side wall of the third cavity 14, a second gear 514 is fixed on the output shaft of the first motor 53, the first gear 512 is meshed with the second gear 514, during transmission, the first motor 53 drives the second gear 514 to rotate, the second gear 514 drives the first gear 512 to rotate, the first sleeve 511 rotates the first sleeve 511, the first sleeve 511 drives the second screw 513 to synchronously rotate, and one end of the second screw 513 slides inside the first sleeve 511, and since the second screw 513 is matched with the thread of the side wall of the second cavity 13, the second screw 513 can drive the plate 52 to move horizontally during rotation.

As shown in fig. 4, the limiting component includes two limiting blocks 15, the two limiting blocks 15 are fixed on the outer wall of one end of the second screw 513, the two limiting blocks 15 are symmetrically arranged, the inner wall of the first sleeve 511 is provided with a limiting groove 16 for the two limiting blocks 15 to slide, and the first sleeve 511 is convenient to drive the second screw 513 to move synchronously through the cooperation of the limiting blocks 15 and the limiting groove 16.

As shown in fig. 2, the other end of the second screw 513 passes through the side wall of the second chamber 13 and is installed in the middle of the straightening plate 52, two telescopic rods 6 on the straightening plate 52 are respectively located on both sides of the second screw 513, and the installation direction of the telescopic rods 6 is the same as the installation direction of the second screw 513, so that the straightening plate 52 can move horizontally by the limitation of the two telescopic rods 6.

As shown in fig. 5, the correction plate 52 includes a moving plate 521, two opposite sides of the moving plate 521 are provided with arc-shaped surfaces, one of the arc-shaped surfaces is provided with a sliding groove 522, the other two sides of the moving plate 521 are provided with inclined surfaces, and the arc-shaped surfaces are convenient to be attached to the side wall of the valve rod 2, so that the stability of the moving plate 521 and the side wall of the valve rod 2 is improved.

As shown in fig. 6, the telescopic rod 6 includes a second sleeve 601, an inner rod 602, a stop 603 and a spring 604, the stop 603 and the spring 604 are both located inside the second sleeve 601, one end of the inner rod 602 passes through one end of the second sleeve 601 and is fixed to one side of the stop 603, the spring 604 is located on the other side of the stop 603, and the resilience of the spring 604 is utilized to facilitate the movement of the inner rod 602 in the second sleeve 601 and provide a supporting force in the opposite direction to the inner rod 602, so that the supporting force of the inner rod 602 to the correction plate 52 is improved, and the probability of the inclination of the correction plate 52 is reduced.

As shown in fig. 7, the valve rod 2 includes a first screw 201 and a fixing plate 202, one end of the first screw 201 is rotatably connected to one side of the fixing plate 202, four protrusions 19 are fixed to a side wall of the fixing plate 202 at equal angles, the protrusions 19 are located inside the sliding slot 522, so that the fixing plate 202 can move up and down in the vertical direction of the sliding slot 522, a second motor 203 is installed on the other side of the fixing plate 202, one end of the first screw 201 penetrates through the fixing plate 202 and is fixed to an output shaft of the second motor 203, one end of the second cavity 13 is provided with a yielding slot for the second motor 203 to enter, the first screw 201 is driven by the second motor 203 to rotate, due to the threaded fit between the first screw 201 and the valve body 1, the first screw 201 drives the gate 3 to move in the vertical direction, so that the liquid passage 10 can be opened or closed, and the first screw 201 drives the second motor 203 to move in the vertical direction while driving the gate 3 to move.

As shown in fig. 8, the gate plate 3 includes a blocking plate 301 and a flow plate 302, one end of the flow plate 302 is fixedly connected to one end of the blocking plate 301, a side wall of a joint of the flow plate 302 and the blocking plate 301 is disposed in an inclined manner, a through hole 303 is formed at one side of the flow plate 302, a groove into which the other end of the flow plate 302 is inserted is formed in an inner wall of the liquid passage 10, a first sealing block 11 is installed at a notch of the groove, the first sealing block 11 is used for increasing the sealing property between the flow plate 302 and the groove, a connecting block 20 is fixed at the other end of the blocking plate 301, one end of the connecting block 20 is rotatably connected to the other end of the first screw 201, and is used for blocking the liquid flow in the liquid passage 10 when the blocking plate 301 is located in the liquid passage 10, and the liquid in the liquid passage 10 flows through the through hole 303 when the flow plate 302 is located in the liquid passage 10, thereby facilitating the transmission of the liquid.

As shown in fig. 1, the second sealing blocks 12 are installed at both ends of the first cavity 9, the connecting block 20 comprises a transverse plate and a vertical plate, one side of the transverse plate is fixedly connected with one end of the vertical plate, the two sides of the vertical plate are obliquely arranged, a through hole for the other end of the vertical plate to penetrate through is formed in one second sealing block 12, the other second sealing block 12 is sleeved on the outside of the first screw rod 201, the sealing performance between the separation plate 301 and the screw rod as well as the first cavity 9 is improved through the second sealing block 12, and the liquid in the liquid channel 10 is reduced to enter the first cavity 9.

As shown in fig. 1, the controller 18 is installed on a side wall of the control box 4, the levelness detection sensor 17 is fixed at the other end of the fixing plate 202, the levelness detection sensor 17 is electrically connected with the controller 18, the controller 18 is also electrically connected with the first motor 53 and the second motor 203 respectively, when the valve needs to be opened or closed, the first motor 53 is started through the controller 18, the first screw 201 is driven to rotate through the first motor 53, and the valve is automatically opened or closed; when the levelness detection sensor 17 detects that the position of the fixing plate 202 is inclined, the levelness detection sensor 17 transmits a signal to the controller 18, the controller 18 starts the corresponding second motor 203 in time, so that the second motor 203 drives the transmission rod 51 to rotate conveniently, the transmission rod 51 drives the correction plate 52 at the corresponding position to move conveniently, and the position of the valve rod 2 is adjusted in time conveniently.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A sealing valve, characterized in that: comprises a valve body (1), a valve rod (2), a control box (4) and a flashboard (3);

a first cavity (9) and a liquid channel (10) are respectively formed in the valve body (1), two ends of the liquid channel (10) are communicated with a connecting pipe (7), and a flange (8) is fixed at one end of the connecting pipe (7);

one end of the control box (4) is fixed with one end of the valve body (1), one end of the valve rod (2) penetrates through one end of the valve body (1) and extends into the first cavity (9), the valve rod (2) is in threaded connection with the valve body (1), the flashboard (3) is rotatably connected to one end of the valve rod (2), and the other end of the flashboard (3) is movably inserted into the liquid channel (10);

the other end of the valve rod (2) penetrates through one end of the control box (4) and extends into the control box (4), a second cavity (13) is arranged inside the control box (4), a levelness detection sensor (17) is installed at the other end of the valve rod (2), four adjusting assemblies (5) are arranged inside the second cavity (13) at equal angles, and the other end of the valve rod (2) is connected with the four adjusting assemblies (5) in a sliding mode;

each group of adjusting assemblies (5) comprises a transmission rod (51), a correcting plate (52) and a first motor (53), the length of the correcting plate (52) is half of the length of the valve rod (2), the installation direction of the correcting plate (52) is consistent with the installation direction of the valve rod (2), one side of the correcting plate (52) is connected with the side wall of the second cavity (13) through two telescopic rods (6), one side of the correcting plate (52) is rotatably connected with one end of the transmission rod (51), four third cavities (14) are formed in the control box (4), the other end of the transmission rod (51) is in threaded connection with the side wall of the second cavity (13) and extends into one of the third cavities (14), the other end of the transmission rod (51) is rotatably connected with the side wall of the third cavity (14), the other end of the transmission rod (51) is driven by the first motor (53), and the levelness detecting sensor (17) is installed at the other end of the valve rod (2).

2. A sealing valve as claimed in claim 1, wherein: the transmission rod (51) comprises a second screw rod (513) and a first sleeve pipe (511), one end of the second screw rod (513) is movably connected with one end of the first sleeve pipe (511) through a limiting component in an inserting mode, two ends of the first sleeve pipe (511) are connected with the side wall of the third cavity (14) in a rotating mode, a first gear (512) is fixed to the outer wall of the other end of the first sleeve pipe (511), the first motor (53) is embedded in the side wall of the third cavity (14), a second gear (514) is fixed to the output shaft of the first motor (53), and the first gear (512) is meshed with the second gear (514).

3. A sealing valve as claimed in claim 2, wherein: the limiting assembly comprises two limiting blocks (15), the two limiting blocks (15) are fixed on the outer wall of one end of the second screw (513), the two limiting blocks (15) are symmetrically arranged, and limiting grooves (16) for the two limiting blocks (15) to slide are formed in the inner wall of the first sleeve (511).

4. A sealing valve as claimed in claim 3, wherein: the other end of the second screw rod (513) penetrates through the side wall of the second cavity (13) and is installed in the middle of the correction plate (52), two telescopic rods (6) located on the correction plate (52) are located on two sides of the second screw rod (513) respectively, and the installation direction of the telescopic rods (6) is consistent with the installation direction of the second screw rod (513).

5. A sealing valve as claimed in claim 1, wherein: the correcting plate (52) comprises a moving plate (521), two opposite sides of the moving plate (521) are arranged to be arc-shaped surfaces, a sliding groove (522) is formed in one of the arc-shaped surfaces, and the other two sides of the moving plate (521) are arranged to be inclined planes.

6. A sealing valve as claimed in claim 1, wherein: the telescopic rod (6) comprises a second sleeve (601), an inner rod (602), a stop block (603) and a spring (604), wherein the stop block (603) and the spring (604) are located inside the second sleeve (601), one end of the inner rod (602) penetrates through one end of the second sleeve (601) and is fixed with one side of the stop block (603), and the spring (604) is located on the other side of the stop block (603).

7. A sealing valve as claimed in claim 1, wherein: valve rod (2) include first screw rod (201) and fixed plate (202), the one end of first screw rod (201) is rotated with one side of fixed plate (202) and is connected, the angle such as lateral wall of fixed plate (202) is fixed with four lugs (19), lug (19) are located the inside of spout (522), second motor (203) are installed to the opposite side of fixed plate (202), the output shaft that fixed plate (202) and second motor (203) were passed to the one end of first screw rod (201) is fixed, the groove of stepping down that supplies second motor (203) to get into is seted up to the one end of second cavity (13).

8. A sealing valve as claimed in claim 7, wherein: flashboard (3) are including baffling board (301) and circulation board (302), the one end of circulation board (302) and the one end fixed connection of baffling board (301), and the lateral wall of circulation board (302) and baffling board (301) junction is the slope setting, through-hole (303) have been seted up to one side of circulation board (302), the other end male recess that supplies circulation board (302) is seted up to the inner wall of liquid passage (10), and the notch department of recess installs first sealed piece (11), the other end of baffling board (301) is fixed with connecting block (20), the one end of connecting block (20) is rotated with the other end of first screw rod (201) and is connected.

9. A sealing valve as claimed in claim 8, wherein: sealed piece of second (12) is all installed at the both ends of first cavity (9), connecting block (20) are including diaphragm and riser, the one side of diaphragm and the one end fixed connection of riser, just the both sides of riser are the slope setting, one the through hole that supplies the riser other end to run through is seted up in sealed piece of second (12), another sealed piece of second (12) cup joint in the outside of first screw rod (201).

10. A sealing valve as claimed in claim 7, wherein: still include controller (18), the lateral wall at control box (4) is installed in controller (18), levelness detection sensor (17) are fixed at the other end of fixed plate (202), just levelness detection sensor (17) and controller (18) electric connection, controller (18) still respectively with first motor (53) and second motor (203) electric connection.