CN210050333U

CN210050333U - Duplex valve

Info

Publication number: CN210050333U
Application number: CN201920898054.2U
Authority: CN
Inventors: 彭帮强; 黄忠
Original assignee: Tolp Technology Co Ltd
Current assignee: Tolp Technology Co Ltd
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2020-02-11
Anticipated expiration: 2029-06-14

Abstract

The utility model provides a double-link valve, includes the double valve body, locates the valve gap of double valve body bottom to and locate the motor element of valve gap bottom, be equipped with two spools in the double valve body, and with each case between form two passageways, one of them spool is used for switching hot and cold water, another spool is used for switching different models oil, the inside control panel that is equipped with of motor element. The utility model discloses in, when diesel automobile reduces or the northern area traveles at temperature, the case that leads to oil leads to low-grade oil earlier and supplies with engine work, treat engine operating temperature normal back, the control panel receives switching instruction, control motor assembly drives the case switching channel that leads to water and leads to hot water, make hot water heat to high-grade, after the oil temperature of high-grade oil reaches operation requirement, the control panel receives high-grade oil switching instruction, the case switching channel that the control leads to oil supplies with logical high-grade oil engine work, realize switching oil and hot and cold water to diesel automobile automatically promptly, thereby reduce driver's operation action.

Description

Duplex valve

Technical Field

The utility model relates to a diesel engine technical field, in particular to double valve.

Background

Conventional diesel vehicles are generally filled with only one type of fuel, for example, the freight car tank is commonly filled with 0 # diesel. However, when the air temperature is reduced or the vehicle runs in the northern area, the No. 0 diesel oil often crystallizes, so that an oil way is blocked, the engine is difficult to start, or the engine automatically stalls during the running process. If the fuel tank is filled with low-grade fuel in the applicable temperature range, such as-10 # diesel (4 ℃ to-5 ℃), -35 # diesel (-14 ℃ to-29 ℃), although the fuel is not crystallized, the low-grade fuel is inferior to high-grade diesel in dynamic property and economical efficiency, thereby increasing the transportation cost. For this reason, diesel vehicles with a dual fuel system have been used and are preferred.

When the temperature is low or in northern areas, a driver needs to switch the working high-grade channel to the low-grade channel before a diesel vehicle with a double-fuel system stops. If a driver forgets to switch the oil passage to the low-grade passage, when the engine is directly flamed out and stopped, high-grade oil is filled in the oil supply system pipeline of the engine, and after the stopping time is long, the high-grade oil in the pipeline of the engine can be crystallized, so that the engine cannot be started or is difficult to start. In order to ensure that the oil circuit system of the engine is low-grade oil before parking, a driver needs to manually switch the oil product before parking to ensure that the oil supply system of the engine is low-grade oil, and then the engine is shut down to park, so that the operation is complicated.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims at providing a pair valve can switch oil and hot and cold water to diesel vehicle automatically to reduce driver's operation action.

A duplex valve comprises a duplex valve body, a valve cover arranged at the bottom of the duplex valve body and a motor assembly arranged at the bottom of the valve cover, wherein two valve cores are arranged in the duplex valve body, two channels are formed between each valve core and the two valve cores, one valve core is used for switching cold and hot water, the other valve core is used for switching oil products of different models, and each valve core is connected with the motor assembly through a connecting assembly;

a limit switch is arranged in the duplex valve body, two groups of stationary contacts are respectively arranged at two ends of the lower surface of the limit switch, two ends of the limit switch respectively extend to the bottom of each valve core, a linkage element rotating along with the valve core is clamped at the bottom of each valve core, and two elastic movable contacts which are correspondingly contacted and matched with the two groups of stationary contacts are arranged on the linkage element;

the control panel is arranged in the motor assembly and electrically connected with the limit switch, when the control panel receives an external switching instruction, the motor assembly is controlled to drive the corresponding valve core to rotate until one of the elastic movable contacts and the corresponding fixed contact break away and stop, and the valve core is switched to the other channel from one channel.

Compared with the prior art, among the pair valve, when diesel automobile went in temperature reduction or northern area, the case that leads to oil leads to low-grade oil supply engine work through one of them passageway earlier, treats engine operating temperature normal back, and the control panel receives hot water switching instruction, control motor element drives the case switching channel that leads to water and carries out logical hot water, makes hot water heat high-grade number, and after the oil temperature of high-grade number oil reached operation requirement, the control panel received high-grade number oil switching instruction, and the case switching channel that the control leads to oil supplied with engine work with leading to high-grade number oil, realized switching oil and hot and cold water to diesel automobile automatically promptly to reduce driver's operation action.

Furthermore, two groups of stationary contacts at each end of the limit switch are symmetrically arranged, each group of stationary contacts comprises two sections of stationary contact circular arcs which are concentrically arranged, each elastic movable contact comprises an electrification block and electric contacts arranged at two ends of the electrification block, each electric contact is correspondingly in contact connection with one section of the stationary contact circular arcs, and when the motor assembly drives the corresponding valve core to rotate clockwise or anticlockwise and the two electric contacts in the elastic movable contact and the two stationary contact circular arcs at the two ends of the corresponding position are separated and stopped, the valve core is switched to the other channel through one channel.

Furthermore, the middle part of the limit switch is provided with a group of connecting holes and a group of wire passing holes, the group of connecting holes are connected with the duplex valve body through bolts, and the group of wire passing holes are used for the passing of a connecting wire between the limit switch and the control panel;

u-shaped avoidance notch grooves are respectively formed in two ends of the limit switch, and the positions of the avoidance notch grooves correspond to the bottom of the valve core.

Furthermore, a runway-type linkage hole is formed in the middle of the linkage element, and the linkage hole is clamped at the bottom of the valve core.

Furthermore, the connecting assembly comprises a manual shaft connected with the bottom of the valve core, a manual pull rod arranged in the manual shaft and capable of being pulled up and down, a connecting shaft arranged below the manual shaft, and a gear box shaft connected with the connecting shaft and the motor assembly;

when the manual shifting rod is in a horizontal state, the upper part of the manual shifting rod is clamped in the middle of the manual shaft, the lower part of the manual shifting rod is clamped in the connecting shaft, and the motor assembly drives the manual shaft and the valve core to rotate through the connecting shaft and the manual shifting rod so as to automatically realize that the valve core is switched from one channel to the other channel;

when the manual pulling rod is pulled upwards to enable the manual pulling rod to be separated from the connecting shaft, the valve core is manually switched from one channel to the other channel through the manual pulling rod.

Furthermore, the top of the manual shaft protrudes outwards to form a protruding part, a protruding hole is formed in the protruding part, and the manual shaft is connected with the valve core through the protruding hole;

the bottom of manual axis is equipped with the holding tank, be equipped with the fixed orifices that runs through the lateral wall on two lateral walls of holding tank one end, manual dead lever is located in the holding tank and pass through the fixed orifices is connected.

Furthermore, the manual shifting lever comprises a middle connecting part, and a hand holding part and a manual connecting part which are arranged at two ends of the middle connecting part, wherein the manual connecting part and the middle connecting part are positioned in the accommodating groove;

an avoidance notch is formed between the lower part of the manual connecting part and the middle connecting part, a manual connecting hole is formed in the end part of the manual connecting part, and the manual pulling rod is connected with the fixing hole through the manual connecting hole;

one side of the middle connecting portion, which is close to the manual shaft, is provided with an avoidance inclined plane, and the avoidance inclined plane and the avoidance notch are respectively located on two sides of the middle connecting portion.

Further, the end of the manual connection part is arc-shaped.

Furthermore, a clamping groove with the center penetrating through the edge is formed in the top end of the connecting shaft, and when the manual shifting rod is in a horizontal state, the lower part of the middle connecting part is clamped in the clamping groove;

the connecting shaft is internally provided with a shaft hole which penetrates through the connecting shaft in the axial direction, and the gear box shaft is arranged in the shaft hole.

Furthermore, the side wall of the shaft hole comprises an arc surface and a straight surface connected with the arc surface, and the arc length of the section of the arc surface is greater than half of the perimeter of the section of the shaft hole.

Drawings

Fig. 1 is a schematic structural diagram of a double-link valve according to an embodiment of the present invention;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic view of a connection structure of the valve core, the limit switch and the connecting assembly in FIG. 2;

FIG. 4 is an exploded view of FIG. 3;

FIG. 5 is a schematic structural diagram of the limit switch of FIG. 4;

FIG. 6 is a schematic view of the linkage element of FIG. 4;

FIG. 7 is a schematic view of the limit switch of FIG. 3 in connection with one of the linkage elements;

FIG. 8 is a schematic view of the limit switch of FIG. 7 in a corresponding alternative connection with the linkage element;

FIG. 9 is a schematic structural view of the manual shaft of FIG. 4;

FIG. 10 is a schematic view of the manual lever of FIG. 4;

fig. 11 is a structural schematic diagram of the connecting shaft in fig. 4.

Description of the main element symbols:

duplex valve body	10	Valve cover	11
				Motor assembly	12	Valve core	13
Connecting assembly	14	Manual shaft	141
				Raised part	1411	Raised hole	1412
Accommodating tank	1413	Fixing hole	1414
				Manual shifting lever	142	Intermediate connecting part	1421
Hand holding part	1422	Manual connection	1423
				Avoiding gap	1424	Manual connection hole	1425
Avoiding inclined plane	1426	Connecting shaft	143
				Clamping groove	1431	Shaft hole	1432
Gear box shaft	144	Limit switch	15
				Static contact	151	Connecting hole	152
Wire through hole	153	Avoidance notch	154
				Linkage element	16	Elastic moving contact	161
Energizing block	1611	Electrical contact	1612
				Linkage hole	162

The following detailed description of the invention will be further described in conjunction with the above-identified drawings.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 4, an embodiment of the present invention provides a duplex valve, including a duplex valve body 10, a valve cover 11 disposed at the bottom of the duplex valve body 10, and a motor assembly 12 disposed at the bottom of the valve cover 11, wherein two valve cores 13 are disposed in the duplex valve body 10, and each valve core 13 is connected to the motor assembly 12 through a connecting assembly 14. It should be noted that two passages are formed between the double valve body 10 and each valve core 13, wherein one valve core 13 is used for switching hot and cold water, and the other valve core 13 is used for switching oil products of different types.

Referring to fig. 3 to 6, a limit switch 15 is disposed inside the dual valve body 10, two sets of stationary contacts 151 are disposed at two ends of a lower surface of the limit switch 15, two ends of the limit switch 15 extend to a bottom of each valve element 13, a linkage element 16 rotating with the valve element 13 is clamped at the bottom of each valve element 13, and two elastic movable contacts 161 contacting and matching with the two sets of stationary contacts 151 are disposed on the linkage element 16. When two sets of the fixed contacts 151 are in contact with both the two elastic moving contacts 161, which is equivalent to that the corresponding motor in the motor assembly 12 is connected, the motor assembly 12 can drive the valve element 13 to rotate through the connecting assembly 14, and when one of the elastic moving contacts 161 is separated from the corresponding fixed contact 151, which is equivalent to that the corresponding driving motor in the motor assembly 12 is disconnected, the driving motor stops rotating, so that the limitation of the rotating stroke of the driving motor in the motor assembly 12, that is, the limitation of the rotating stroke of the valve element 13 is realized, and the position deflection of the valve element 13 is avoided.

It should be noted that a control board is disposed inside the motor assembly 12, the control board is electrically connected to the limit switch 15, and when the control board receives an external switching instruction, the control board controls the motor assembly 12 to drive the corresponding valve element 13 to rotate until one of the elastic moving contacts 161 and the corresponding stationary contact 151 are separated and stop, and the valve element 13 is switched from one of the channels to the other channel.

It should be further noted that, when the diesel vehicle is running in a low temperature area or in a northern area, the valve element 13 through which oil flows first supplies low-grade oil to the engine through one of the channels to operate, after the operating temperature of the engine is normal, the control panel receives a hot water switching instruction, controls the motor assembly 12 to drive the valve element 13 through which water flows to switch the channels to supply hot water, so that the hot water heats a high-grade oil, and after the oil temperature of the high-grade oil reaches the use requirement, the control panel receives the high-grade oil switching instruction, controls the valve element 13 through which oil flows to switch the channels to supply the high-grade oil to the engine to operate, that is, the diesel vehicle is automatically switched between oil and cold and hot water, thereby reducing the operation actions of a driver.

Referring to fig. 5 to 8, two sets of stationary contacts 151 at each end of the limit switch 15 are symmetrically disposed, each set of stationary contacts 151 includes two concentric stationary contact arcs, and each elastic moving contact 161 includes an energizing block 1611 and electrical contacts 1612 disposed at two ends of the energizing block 1611.

It should be noted that each of the electrical contacts 1612 is correspondingly connected with one of the static contact arcs, and when the motor assembly 12 drives the corresponding valve element 13 to rotate clockwise or counterclockwise, and the two electrical contacts 1612 in one of the elastic moving contacts 161 and the two static contact arcs at the corresponding position are separated and stopped, the valve element 13 is switched from one of the channels to the other channel.

Referring to fig. 7, in particular, a set of stationary contacts 151 and a flexible moving contact 161 located at the upper portion are separated from contact, and the driving motor at this position is equivalent to a circuit disconnection and cannot rotate clockwise, that is, the stroke of the driving motor is limited, and at this time, a channel of the valve element 13 is connected.

Referring to fig. 8, in particular, the group of stationary contacts 151 and the one resilient moving contact 161 located at the lower portion are separated from contact, and the driving motor at this position is equivalent to a circuit disconnection and cannot rotate counterclockwise, that is, the stroke of the driving motor is limited, and at this time, the other channel of the valve element 13 is connected.

Referring to fig. 5 again, a group of connection holes 152 and a group of wire holes 153 are disposed in the middle of the limit switch 15, the group of connection holes 152 are connected to the double valve body 10 through bolts, and the group of wire holes 153 are used for passing through a connection wire between the limit switch 15 and the control board.

Preferably, two ends of the limit switch 15 are respectively provided with a U-shaped avoiding notch 154, the position of the avoiding notch 154 corresponds to the bottom of the valve element 13, and the avoiding notch 154 is U-shaped to avoid position interference between the limit switch 15 and the valve element 13.

Referring to fig. 6, a track-type linkage hole 162 is formed in a middle portion of the linkage element 16, the linkage hole 162 is clamped at the bottom of the valve core 13, and the track-type linkage hole 162 serves to prevent axial rotation between the linkage element 16 and the valve core 13.

Referring to fig. 3 and 4, the connecting assembly 14 includes a manual shaft 141 connected to the bottom of the valve core 13, a manual lever 142 disposed in the manual shaft 141 and capable of being pulled up and down, a connecting shaft 143 disposed below the manual shaft 141, and a gear box shaft 144 connected to the connecting shaft 143 and connected to the motor assembly 12.

In the present embodiment, when it is not necessary to perform oil supply or cold/hot water switching by an automatic method, the automatic mode may be switched to the manual mode. The method specifically comprises the following steps: when the manual lever 142 is in a horizontal state, the upper part of the manual lever 142 is clamped in the manual shaft 141, and the lower part of the manual lever 142 is clamped in the connecting shaft 143, and the motor assembly 12 drives the manual shaft 141 and the valve core 13 to rotate through the connecting shaft 143 and the manual lever 142, so as to automatically realize the switching of the valve core 13 from one channel to another channel; when the manual lever 142 is pulled upwards to make the manual lever 142 be out of contact with the connecting shaft 143, the valve core 13 is manually switched from one channel to the other channel through the manual lever 142.

Referring to fig. 4 and 9, a convex portion 1411 is convexly formed at the top of the manual shaft 141, a convex hole 1412 is formed in the convex portion, and the manual shaft 141 is connected with the valve core 13 through the convex hole 1412.

Preferably, the bottom of the manual shaft 141 is provided with a receiving groove 1413, two side walls at one end of the receiving groove 1413 are provided with fixing holes 1414 penetrating through the side walls, and the manual lever 142 is disposed in the receiving groove 1413 and connected through the fixing holes 1414.

Referring to fig. 10, the manual lever 142 includes a middle connecting portion 1421, and a hand holding portion 1422 and a hand connecting portion 1423 disposed at two ends of the middle connecting portion 1421, wherein the hand connecting portion 1423 and the middle connecting portion 1421 are disposed in the receiving groove 1413.

In the present invention, in a preferred embodiment, an avoiding gap 1424 is formed between the lower portion of the manual connection portion 1423 and the middle connection portion 1421, and a manual connection hole 1425 is disposed in the end portion, the manual lever 142 passes through the manual connection hole 1425 and the fixed hole 1414 are connected, and the purpose of avoiding the gap 1424 is to avoid interference between the manual connection portion 1423 and the connection shaft 143 when the manual lever 142 is in a horizontal state.

In another preferred embodiment of the present invention, the middle connecting portion 1421 is close to one side of the manual shaft 141 is provided with an avoiding inclined surface 1426, the avoiding inclined surface 1426 and the avoiding notch 1424 are respectively located at two sides of the middle connecting portion 1421, the purpose of avoiding the inclined surface 1426 is to avoid the interference between the middle connecting portion 1421 and the manual shaft 141 when the manual lever 142 makes the manual lever 142 and the connecting shaft 143 break away from the contact.

Further, the end of the manual connection part 1423 is formed in a circular arc shape, so that the end is prevented from interfering with the connection shaft 143 when the manual lever 142 is pulled up and down.

Referring to fig. 11, in order to facilitate the engagement between the connecting shaft 143 and the manual lever 142, a slot 1431 is formed at a top end of the connecting shaft 143, the slot 1431 penetrates through an edge of the connecting shaft from a center, and when the manual lever 142 is in a horizontal state, a lower portion of the middle connecting portion 1421 is engaged with the slot 1431. An axial hole 1432 is formed in the connecting shaft 143, and the gearbox shaft 144 is disposed in the axial hole 1432.

Further, in order to prevent the axial rotation between the connecting shaft 143 and the gearbox shaft 144, the side wall of the shaft hole 1432 includes an arc surface and a straight surface connected to the arc surface, and in order to ensure the strength of the gearbox shaft 144, the arc length of the section of the arc surface is greater than half of the circumference of the section of the shaft hole.

To sum up, in the duplex valve, through control panel control motor element 12 drives the case 13 that leads to oil or logical hot and cold water and rotates, to one of them elasticity movable contact 151 and correspondence stationary contact 161 breaks away from and stops, and corresponding case 13 is switched to another passageway by one of them passageway, realizes switching oil and hot and cold water to diesel automobile automatically promptly to reduce driver's operation action. In addition, the manual lever 142 can be shifted up and down to switch between an automatic mode and a manual mode, so that the operation is more convenient.

The above-mentioned embodiments only express a certain implementation manner of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a duplex valve, includes the duplex valve body, locates the valve gap of duplex valve body bottom, and locate the motor element of valve gap bottom, its characterized in that: two valve cores are arranged in the duplex valve body, two channels are formed between each valve core and the duplex valve body, one valve core is used for switching cold water and hot water, the other valve core is used for switching oil products of different types, and each valve core is connected with the motor assembly through a connecting assembly;

2. The double valve according to claim 1, wherein two sets of stationary contacts at each end of the limit switch are symmetrically arranged, each set of stationary contacts comprises two sections of stationary contact circular arcs which are concentrically arranged, each elastic movable contact comprises an energizing block and electric contacts arranged at two ends of the energizing block, each electric contact is correspondingly in contact connection with one of the stationary contact circular arcs, and when the motor assembly drives the corresponding valve element to rotate clockwise or counterclockwise, and two electric contacts in one of the elastic movable contacts and two stationary contact circular arcs at corresponding positions are separated and stopped, the valve element is switched from one of the channels to the other channel.

3. The double valve according to claim 1, wherein a group of connecting holes and a group of line through holes are formed in the middle of the limit switch, the group of connecting holes are connected with the double valve body through bolts, and the group of line through holes are used for allowing a connecting line between the limit switch and the control plate to pass through;

4. The double valve according to claim 1, wherein a raceway type interlocking hole is provided in a middle portion of the interlocking member, and the interlocking hole is caught at a bottom portion of the spool.

5. The dual valve according to any one of claims 1 to 4, wherein the connecting assembly comprises a manual shaft connected to the bottom of the valve core, a manual pulling rod disposed in the manual shaft and capable of being pulled up and down, a connecting shaft disposed below the manual shaft, and a gear box shaft connected to the connecting shaft and connected to the motor assembly;

6. The double valve according to claim 5, wherein a boss is convexly formed at the top of the manual shaft, a boss hole is formed in the boss, and the manual shaft is connected with the valve core through the boss hole;

7. The double valve of claim 6, wherein the manual lever comprises an intermediate connecting portion, and a hand grasping portion and a manual connecting portion disposed at both ends of the intermediate connecting portion, the manual connecting portion and the intermediate connecting portion being located in the receiving groove;

8. The double valve according to claim 7, wherein an end of the manual connection portion is rounded.

9. The double valve according to claim 7, wherein a clamping groove is formed at the top end of the connecting shaft and penetrates through the edge from the center, and when the manual pulling rod is in a horizontal state, the lower part of the middle connecting part is clamped in the clamping groove;

10. The dual valve according to claim 9, wherein the sidewall of the shaft bore comprises a circular arc surface and a straight surface connected to the circular arc surface, and the circular arc surface has a cross-sectional arc length greater than half of the cross-sectional circumference of the shaft bore.