Rotary type quick connection valve

Abstract

The utility model relates to a connecting valve, and discloses a rotary type quick connecting valve which comprises a valve shell, a switch assembly and a valve element assembly. By rotating the rotating main shaft, the shifting fork connected to the rotating main shaft in a sleeving mode is driven to rotate, then the pressing position of the valve element is pressed downwards so that the valve element can get close to the fixed element in the first direction, and then the first opening is opened; the fluid flows to subsequent equipment connected with the first opening through the first opening; the rotating main shaft is reversely rotated to drive the shifting fork to be far away from the downward pressing position, so that the valve element is far away from the fixed element in the first direction, the valve element covers the first opening, and then the fluid is stopped from being continuously conveyed outwards; after the valve core covers the first opening, the rotary quick connection valve is closed, and the front end of the rotary quick connection valve is not provided with a cavity, so that the fluid cannot remain at the front end of the valve shell, and environmental pollution caused by volatilization of the residual fluid is avoided; in addition, through a quick connection clamping position integrally arranged at the front end of the valve shell, the valve shell can be meshed and screwed with an external connector conveniently, and butt joint is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of connecting valves, in particular to a kind of rotary quick-connecting valve. BACKGROUND

[0002] Rotary quick-connecting valve is a kind of connecting equipment for docking and disassembling in fluid conveying process, commonly used in petroleum chemical industry and other industries needing to transport fluid through pipeline. In use, rotary quick-connecting valve is usually installed on equipment pipeline through flange to realize quick docking and disassembling, so as to improve work efficiency.

[0003] However, the closed front end of the commonly used rotary quick-connecting valve has a cavity. After fluid conveying is completed, for example, after oil unloading is completed, residual oil and oil gas will be stored in the cavity. These residual oil and oil gas will gradually evaporate and discharge into the atmosphere, thereby causing environmental pollution. SUMMARY

[0004] The utility model aims to provide a kind of rotary quick-connecting valve, solve the problem that the front end cavity of rotary quick-connecting valve in prior art leaves residual fluid after fluid conveying is completed, thereby causing environmental pollution.

[0005] To achieve the above purpose, the utility model provides a kind of rotary quick-connecting valve, which comprises a valve shell, a switch assembly and a valve core assembly. The axial direction of the valve shell is defined as the first direction.

[0006] A conveying cavity is formed in the valve shell. First and second openings are formed at the two ends of the valve shell, and the first opening is located in front of the second opening in the first direction. The conveying cavity is in communication with the first and second openings. A switch channel is also formed in the valve shell, which is in communication with the conveying cavity and penetrates the outer surface of the valve shell. The axial direction of the switch channel is perpendicular to the first direction.

[0007] The switch assembly comprises a rotating main shaft and a shift fork. The rotating main shaft is rotatably and sealingly connected in the switch channel. The shift fork is fixedly sleeved on the outer periphery of one end of the rotating main shaft in the switch channel.

[0008] The valve core assembly is located in the conveying cavity. The valve core assembly comprises a valve core, a valve rod, a fixed core and a first spring. The valve core and the fixed core are spaced apart along the first direction, and the valve core is located in front of the fixed core. One end of the valve rod is connected to the valve core, and the other end is movably arranged in the fixed core. The fixed core is fixedly arranged in the conveying cavity. The first spring is sleeved on the outer periphery of the valve rod, and the two ends are connected to the valve core and the fixed core respectively.

[0009] The front end of the valve core is shaped to match the first opening for opening or covering the first opening; a pressing position is arranged in the valve core, and one end of the yoke away from the rotating shaft is overlapped on the pressing position;

[0010] The front end of the valve shell is uniformly provided with a plurality of quick connection clamping positions in the circumferential direction, and the valve shell and the quick connection clamping positions are integrally formed, the quick connection clamping positions are arranged to extend forward in the first direction, and the inner side of the quick connection clamping positions is provided with a spiral arc line for butt joint and tightening;

[0011] When the rotating shaft rotates, the yoke presses the pressing position, so that the valve core approaches the fixed core in the first direction, thereby opening the first opening; when the rotating shaft reversely rotates, the yoke is away from the pressing position, so that the valve core is away from the fixed core in the first direction under the restoring force of the first spring, thereby covering the first opening.

[0012] Further, the switch assembly further comprises a switch handle, a first shaft pin and a positioning column;

[0013] The axial direction of the rotating shaft is defined as the second direction, and a third direction perpendicular to the first direction and the second direction is defined;

[0014] The switch handle is provided with a connecting hole, and the switch handle is sleeved on the outer periphery of the rotating shaft through the connecting hole; the axial direction of the first shaft pin is perpendicular to the second direction, and the first shaft pin is sequentially connected to the switch handle and the rotating shaft, so that the switch handle is connected to the rotating shaft and can rotate around the axial direction of the first shaft pin;

[0015] The positioning column is spaced apart from and parallel to the rotating shaft in the third direction, and the positioning column is fixedly arranged on the outer surface of the valve shell; one end of the switch handle is provided with a positioning groove matched with the positioning column;

[0016] The switch handle drives the rotating shaft to rotate, when the switch handle rotates to the position that the positioning groove is opposite to the positioning column, the yoke presses the pressing position, and the distance between the valve core and the fixed core is the smallest.

[0017] Further, the switch assembly further comprises a second spring;

[0018] The second spring is sleeved on the outer periphery of the rotating shaft, and two ends of the second spring are connected to the switch handle and the outer surface of the valve shell respectively.

[0019] Further, the valve core assembly further comprises a second shaft pin and a roller;

[0020] The second shaft pin is fixedly arranged in the valve core, and the axial direction of the second shaft pin is perpendicular to the first direction.

[0021] The roller is rotatably sleeved on the outer periphery of the second shaft pin, and the outer periphery surface of the roller defines the pressing position.

[0022] Further, a connecting groove is formed in a surface of the valve core towards the fixed core;

[0023] The valve rod is riveted in the connecting groove.

[0024] Further, the valve housing comprises a first valve body, a second valve body and a fastener which are sealingly connected from front to back;

[0025] The first opening is formed in the front end of the first valve body, and the second opening is formed in the rear end of the second valve body; and the switch channel is formed in the second valve body.

[0026] The end surface of the first valve body and the end surface of the second valve body are engaged, and the fastener is arranged at the joint of the end surface of the first valve body and the end surface of the second valve body, and the fastener is used for fixedly connecting the first valve body and the second valve body.

[0027] Further, a flange plate is arranged around the rear end of the second valve body.

[0028] A plurality of fixing holes are formed in the flange plate, and the fixing holes penetrate through the two side surfaces of the flange plate in the first direction.

[0029] Further, the observation window is further included.

[0030] The observation window is fixedly arranged on the outer surface of the valve housing and communicates with the conveying cavity, and the observation window is used for observing the situation in the conveying cavity.

[0031] Compared with the prior art, the rotary quick connection valve has the beneficial effects that:

[0032] The utility model provides a kind of rotary quick connection valve, it includes valve shell, switch subassembly and valve core subassembly;When using, the second opening one end of the valve shell is connected to tank truck or other fluid storage equipment, the first opening one end is connected to the pipeline port to be filled with fluid;Rotating the rotating main shaft, to drive the shift fork rotation on the rotating main shaft, and then press the valve core down to make the valve core close to the fixed core in the first direction, and then open the first opening;Fluid can flow to the pipeline or equipment connected with the first opening through the first opening;When conveying is finished, reverse rotation the rotating main shaft, drive the shift fork away from the down position, so that the valve core is away from the fixed core in the first direction under the recovery force of the first spring, and then cover the first opening;Then stop fluid continues to deliver outward, and after valve core covers the first opening, the rotary quick connection valve is closed and its front end does not have cavity, so fluid will not remain in the front end of valve shell, and then avoid environmental pollution problem caused by fluid volatilization.In addition, the spiral arc line inside the quick connection detent integrated at the front end of valve shell, rotary quick connection valve can be engaged with the spiral arc line of external joint to be connected to tighten, so as to realize butt joint. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is the cross-sectional view of the utility model embodiment a kind of rotary quick connection valve in the first opening cover state;

[0034] Figure 2 It is the cross-sectional view of the utility model embodiment a kind of rotary quick connection valve in the first opening open state;

[0035] Figure 3 It is Figure 1 cutting schematic view of A-A in it;

[0036] Figure 4 It is Figure 3 cutting schematic view of B-B in it;

[0037] Figure 5 It is the three-dimensional structure schematic view of the utility model embodiment a kind of rotary quick connection valve.

[0038] In the figure, 100, rotary quick connection valve; 1, valve shell; 10, conveying cavity; 101, first opening; 102, second opening; 11, switch channel; 12, first valve body; 121, quick connection clamping; 13, second valve body; 131, flange; 14, fastener; 2, switch assembly; 21, rotary main shaft; 22, yoke; 23, switch handle; 230, connecting hole; 231, positioning groove; 24, first shaft pin; 25, positioning column; 26, second spring; 3, valve core assembly; 31, valve core; 311, connecting groove; 32, valve rod; 33, fixed core; 34, first spring; 35, second shaft pin; 36, roller; 4, observation window. DETAILED DESCRIPTION

[0039] The specific embodiments of the utility model are described in further detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

[0040] As Figures 1-5 shown, the utility model embodiment's one rotary quick connection valve 100, it includes valve shell 1, switch assembly 2 and valve core assembly 3;The axial direction of definition the valve shell 1 is first direction X;

[0041] The conveying cavity 10 is opened in the valve shell 1, and the first opening 101 and the second opening 102 are opened in the both ends of the valve shell 1 respectively, and the first opening 101 is located in the front of the second opening 102 in the first direction X;The first opening 101 and the second opening 102 are communicated with the conveying cavity 10 respectively;Switch channel 11 is also opened in the valve shell 1, and the switch channel 11 is communicated with the conveying cavity 10 and penetrates the outer surface of the valve shell 1;The axial direction of the switch channel 11 is perpendicular to the first direction X;

[0042] The switch assembly 2 includes rotary main shaft 21 and yoke 22;The rotary main shaft 21 is rotatably and sealingly connected in the switch channel 11, and the rotary main shaft 21 is fixedly sleeved with the yoke 22 on the outer periphery of one end in the switch channel 11;

[0043] The valve core assembly 3 is located in the conveying cavity 10, and the valve core assembly 3 includes valve core 31, valve rod 32, fixed core 33 and first spring 34;The valve core 31 and fixed core 33 are spaced apart along the first direction X, and the valve core 31 is located in the front of the fixed core 33, one end of the valve rod 32 is connected to the valve core 31, and the other end is movably threaded in the fixed core 33;The fixed core 33 is fixedly arranged in the conveying cavity 10;The first spring 34 is sleeved on the outer periphery of the valve rod 32, and the two ends are connected to the valve core 31 and the fixed core 33 respectively;

[0044] The front end shape of the valve core 31 matches the first opening 101, for opening or covering the first opening 101; the valve core 31 is provided with a pressing position, and the yoke 22 is overlapped on the pressing position away from the rotating spindle 21;

[0045] The front end of the valve shell 1 is uniformly provided with a plurality of quick connection clamping positions 121 along the circumference, and the valve shell 1 and the quick connection clamping positions 121 are integrally formed, the quick connection clamping positions 121 are arranged in the first direction X and extend forward, and the inner side of the quick connection clamping positions 121 is provided with a spiral arc line for butt joint and tightening;

[0046] When the rotating spindle 21 rotates, the yoke 22 presses the pressing position, so that the valve core 31 approaches the fixed core 33 along the first direction X, and the first opening 101 is opened; when the rotating spindle 21 reversely rotates, the yoke 22 is away from the pressing position, so that the valve core 31 is away from the fixed core 33 along the first direction X under the restoring force of the first spring 34, and the first opening 101 is covered.

[0047] Based on the above technical scheme, in use, one end of the second opening 102 of the valve shell 1 is connected to a tank truck or other fluid storage equipment, and one end of the first opening 101 is connected to a pipeline opening to be filled with fluid; the rotating spindle 21 is rotated to drive the yoke 22 on the rotating spindle 21 to rotate, and then the pressing position of the valve core 31 is pressed to make the valve core 31 approach the fixed core 33 along the first direction X, and the first opening 101 is opened; the fluid can flow to the pipeline or equipment connected with the first opening 101 through the first opening 101; when the delivery is completed, the rotating spindle 21 is reversely rotated to drive the yoke 22 away from the pressing position, so that the valve core 31 is away from the fixed core 33 along the first direction X under the restoring force of the first spring 34, and the first opening 101 is covered; then the fluid continues to be delivered out, and after the valve core 31 covers the first opening 101, the rotary quick connection valve 100 is closed and the front end thereof has no cavity, so that the fluid does not remain in the front end of the valve shell 1, and the environmental pollution problem caused by fluid evaporation is avoided. In addition, the spiral arc line on the inner side of the quick connection clamping position 121 integrally arranged at the front end of the valve shell 1 facilitates the rotary quick connection valve 100 to engage and tighten with the spiral arc line of the external joint to be connected, so as to realize butt joint.

[0048] Preferably, as shown in Figure 1 and Figure 2 The valve core 31 is coaxially arranged with the valve rod 32 and the valve shell 1, so that the valve rod 32 can be uniformly stressed synchronously when the valve core 31 moves under the pressing force of the yoke 22.

[0049] Further, as shown in Figures 1-5 the switch assembly 2 further comprises a switch handle 23, a first shaft pin 24 and a positioning column 25; the axial direction of the rotating main shaft 21 is defined as the second direction Y and the third direction Z is perpendicular to the first direction X and the second direction Y;

[0050] The switch handle 23 is provided with a connecting hole 230, and the switch handle 23 is sleeved on the outer periphery of the rotating main shaft 21 through the connecting hole 230; the axial direction of the first shaft pin 24 is perpendicular to the second direction Y, and the first shaft pin 24 is sequentially connected to the switch handle 23 and the rotating main shaft 21, so that the switch handle 23 is connected to the rotating main shaft 21 and can rotate around the axial direction of the first shaft pin 24; the positioning column 25 is spaced apart from and parallel to the rotating main shaft 21 in the third direction Z, and the positioning column 25 is fixedly arranged on the outer surface of the valve housing 1; one end of the switch handle 23 is provided with a positioning groove 231 matched with the positioning column 25; the connection of the switch handle 23 and the rotating main shaft 21 is realized through the first shaft pin 24, so that the rotating main shaft 21 can be driven to rotate by rotating the switch handle 23, and then the switch assembly 2 can drive the valve core 31 to open or cover the first opening 101.

[0051] When the switch handle 23 drives the rotating main shaft 21 to rotate, the switch handle 23 is rotated to the position where the positioning groove 231 is opposite to the positioning column 25, the yoke 22 is pressed to the pressing position, and the distance between the valve core 31 and the fixed core 33 is the smallest; that is, the distance between the first opening 101 and the valve core 31 is the largest, and the fluid can flow out through the largest channel; and since the switch handle 23 can rotate around the axial direction of the first shaft pin 24, the switch handle 23 can be sleeved on the outer periphery of the positioning column 25 through the positioning groove 231, thereby temporarily fixing the switch handle 23, so that the first opening 101 remains in the open state; when it is needed to cover the first opening 101, the switch handle 23 is only needed to be rotated around the axial direction of the first shaft pin 24 to move the positioning groove 231 away from the positioning column 25, so that the valve core 31 is moved away from the fixed core 33 along the first direction X under the restoring force of the first spring 34, thereby covering the first opening 101.

[0052] Further, as shown in Figures 1-5As shown, the switch assembly 2 further comprises a second spring 26; the second spring 26 is sleeved on the outer periphery of the rotating main shaft 21, and the two ends thereof are connected to the switch handle 23 and the outer surface of the valve housing 1 respectively. Through the second spring 26, on the one hand, the stability of the switch handle 23 when being sleeved on the outer periphery of the positioning column 25 through the positioning slot 231 can be improved, and the positioning column 25 and the positioning slot 231 can be prevented from being separated due to accidental touch of the switch handle 23; on the other hand, after the switch handle 23 rotates around the first shaft pin 24, the switch handle 23 can automatically return to the state perpendicular to the axial direction of the rotating main shaft 21 when the external force is lost, thereby facilitating the subsequent use of the switch handle 23.

[0053] Further, as shown in Figure 1 and Figure 2 , the valve core assembly 3 further comprises a second shaft pin 35 and a roller 36; the second shaft pin 35 is fixedly penetrated in the valve core 31, and the axial direction of the second shaft pin 35 is perpendicular to the first direction X; the roller 36 is rotatably sleeved on the outer periphery of the second shaft pin 35, the outer periphery surface of the roller 36 defines the pressing position, and one end of the shift fork 22 is overlapped on the outer periphery surface of the roller 36. Through the arrangement of the second shaft pin 35 and the roller 36, the stress concentration of the shift fork 22 when being pressed on the pressing position can be reduced, so as to avoid the breakage of the shift fork 22, thereby improving the service life of the shift fork 22.

[0054] Further, as shown in Figure 1 , Figure 2 , in order to realize the connection of the valve core 31 and the valve rod 32 and guarantee the reliability of the connection of the valve core 31 and the valve rod 32, a connecting groove 311 is formed on the surface of the valve core 31 facing the fixed core 33; the valve rod 32 is riveted in the connecting groove 311.

[0055] Further, as shown in Figure 1 , Figure 2 , Figure 4 and Figure 5 , due to the complex structure of the valve housing 1, in order to facilitate the manufacturing of the valve housing 1, the valve housing 1 comprises a first valve body 12, a second valve body 13 and a fastener 14 which are sealingly connected from front to back; the first opening 101 is formed on the front end of the first valve body 12, the second opening 102 is formed on the rear end of the second valve body 13, the switch channel 11 is formed in the second valve body 13, the end surface of the first valve body 12 and the end surface of the second valve body 13 are joined, the fastener 14 is arranged at the joint of the end surface of the first valve body 12 and the end surface of the second valve body 13, and the fastener 14 is used for fixedly connecting the first valve body 12 and the second valve body 13.

[0056] Further, as shown inFigure 1 , Figure 2 and Figure 5 As shown, to facilitate the connection of the valve body 1 to a tanker truck or other equipment for storing fluids, a flange 131 is provided around the rear end of the second valve body 13; a plurality of fixing holes 1310 are provided on the flange 131, and the fixing holes 1310 penetrate the two sides of the flange 131 in the first direction X.

[0057] Furthermore, such as Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, to facilitate observation of the specific situation during fluid transportation, the rotary quick-connect valve 100 also includes an observation window 4; the observation window 4 is fixed on the outer surface of the valve body 1 and communicates with the transportation chamber 10; the observation window 4 is used to observe the situation inside the transportation chamber.

[0058] The working process of this utility model is as follows:

[0059] The valve body 1 is connected to the tank truck or other fluid storage equipment through a number of fixing holes 1310 on the flange 131, and the valve body 1 is connected to the external connector by the helical arc on the inner side of the number of quick connection slots 121 interlocking with the helical arc of the connector to be connected and screwing it tight.

[0060] In the initial state, the first spring 34 is in the normal state and the valve core 31 covers the first opening 101; rotating the switch handle 23 drives the rotating spindle 21 to rotate, thereby driving the fork 22 on the rotating spindle 21 to rotate, and then pressing down the valve core 31 to the lower position so that the valve core 31 moves closer to the fixed core 33 along the first direction X, thereby opening the first opening 101; fluid can flow through the first opening 101 to the pipe or equipment connected to the first opening 101; and by fitting the positioning groove 231 onto the outer periphery of the positioning post 25, the switch handle 23 is fixed so that the fork 22 remains in the state of pressing down the lower position, thereby maintaining the opening of the first opening 101; during the fluid transportation process, the flow of fluid in the transportation chamber 10 is observed through the observation window 4.

[0061] After the fluid delivery is completed, rotate the switch handle 23 to separate the positioning groove 231 and the positioning post 25, causing the rotating spindle 21 to rotate in the opposite direction, thereby driving the shift fork 22 away from the lower pressure position, so that the valve core 31 moves away from the fixed core 33 along the first direction X under the restoring force of the first spring 34, and thus covers the first opening 101; so that the front end of the valve body 1 has no cavity, thereby avoiding the environmental pollution problem caused by fluid remaining in the cavity.

[0062] In summary, the utility model embodiment provides a kind of rotary quick connection valve 100, it includes valve shell 1, switch component 2 and valve core component 3;When using, one end of the second opening 102 of the valve shell 1 is connected to tank truck or other fluid storage equipment, one end of the first opening 101 is connected to the pipe opening to be filled with fluid;Rotating the rotary spindle 21, to drive the shift fork 22 on the rotary spindle 21 rotates, in turn, the lower pressure position of the valve core 31 is pressed down to make the valve core 31 approach the fixed core 33 along the first direction X, in turn, the first opening 101 is opened;Fluid can flow to the pipe or equipment connected with the first opening 101 through the first opening 101;When conveying is finished, reverse rotation rotary spindle 21, drive the shift fork 22 away from the lower pressure position, so that the valve core 31 is away from the fixed core 33 along the first direction X under the recovery force of the first spring 34, in turn, the first opening 101 is closed;In turn, stop fluid to continue to deliver outward, and after valve core 31 closes the first opening 101, the rotary quick connection valve 100 is closed and its front end does not have cavity, so fluid will not remain in the front end of valve shell 1, avoid environmental pollution problem caused by fluid volatilization.In addition, the spiral arc line inside the quick connection detent 121 integrally arranged at the front end of valve shell 1, facilitate rotary quick connection valve 100 can be engaged with the spiral arc line of the external joint to be connected and tightened, so as to realize butt joint.

[0063] The above is only the preferred embodiment of the utility model, it should be pointed out, for ordinary skilled person in the art, without departing from the technical principle of the utility model, can make several improvements and substitutions, these improvements and substitutions also should be considered as the protection scope of the utility model.

Claims

1. A rotary quick connect valve, characterized by, The valve includes a valve housing, a switch assembly and a valve core assembly; an axial direction of the valve housing is defined as a first direction; A delivery cavity is formed in the valve housing, and a first opening and a second opening are respectively formed at two ends of the valve housing, and the first opening is located in front of the second opening in the first direction; The delivery cavity is in communication with the first opening and the second opening respectively, and a switch channel is further formed in the valve housing, which is in communication with the delivery cavity and penetrates through the outer surface of the valve housing, and the axial direction of the switch channel is perpendicular to the first direction; The switch assembly includes a rotating shaft and a shift fork; the rotating shaft is rotatably and sealingly connected in the switch channel, and an outer periphery of one end of the rotating shaft in the switch channel is fixedly sleeved with the shift fork; The valve core assembly is located in the delivery cavity, and includes a valve core, a valve rod, a fixed core and a first spring; the valve core and the fixed core are spaced apart along the first direction, and the valve core is located in front of the fixed core; one end of the valve rod is connected to the valve core, and the other end is movably penetrated in the fixed core; the fixed core is fixedly arranged in the delivery cavity; the first spring is sleeved on the outer periphery of the valve rod, and two ends thereof are connected to the valve core and the fixed core respectively; A front end of the valve core is shaped to match the first opening, for opening or covering the first opening; a pressing position is arranged in the valve core, and one end of the shift fork away from the rotating shaft is overlapped on the pressing position; A plurality of quick connection clamping positions are uniformly arranged along the circumferential direction at the front end of the valve housing, and the valve housing and the quick connection clamping positions are integrally formed; the quick connection clamping positions are arranged to extend forward along the first direction, and the inner side of the quick connection clamping positions is provided with a spiral arc line for abutting and tightening; When the rotating shaft rotates, the shift fork presses the pressing position, so that the valve core approaches the fixed core along the first direction, thereby opening the first opening; when the rotating shaft reversely rotates, the shift fork is away from the pressing position, so that the valve core is away from the fixed core along the first direction under the restoring force of the first spring, thereby covering the first opening.

2. The rotary quick connect valve of claim 1, wherein, The switch assembly further includes a switch handle, a first shaft pin and a positioning column; An axial direction of the rotating shaft is defined as a second direction, and a third direction perpendicular to the first direction and the second direction is defined; A connecting hole is formed in the switch handle, and the switch handle is sleeved on the outer periphery of the rotating shaft through the connecting hole; the axial direction of the first shaft pin is perpendicular to the second direction, and the first shaft pin is sequentially connected to the switch handle and the rotating shaft through penetration, so that the switch handle is connected to the rotating shaft and can rotate around the axial direction of the first shaft pin; The positioning column is spaced apart from and parallel to the rotating shaft in the third direction, and is fixedly arranged on the outer surface of the valve housing; one end of the switch handle is provided with a positioning groove matched with the positioning column; The switch handle drives the rotation of the rotation main shaft, when the switch handle is rotated to the position where the positioning groove is opposite to the positioning column, the pressing position of the shift fork is pressed, and the distance between the valve core and the fixed core is the smallest.

3. The rotary quick connect valve of claim 2, wherein, The switch assembly further comprises a second spring; The second spring is sleeved on the outer periphery of the rotation main shaft, and the two ends thereof are connected to the switch handle and the outer surface of the valve shell respectively.

4. The rotary quick connect valve of claim 1, wherein, The valve core assembly further comprises a second shaft pin and a roller; The second shaft pin is fixedly penetrated in the valve core, and the axial direction of the second shaft pin is perpendicular to the first direction; The roller is rotatably sleeved on the outer periphery of the second shaft pin, and the outer peripheral surface of the roller defines the pressing position; one end of the shift fork is overlapped on the outer peripheral surface of the roller.

5. The rotary quick connect valve of claim 1, wherein, A connecting groove is formed on the surface of the valve core towards the fixed core; The valve rod is riveted in the connecting groove.

6. The rotary quick connect valve of claim 1, wherein, The valve shell comprises a first valve body, a second valve body and a fastener which are sealingly connected from front to back; The first opening is formed on the front end of the first valve body, the second opening is formed on the rear end of the second valve body, and the switch channel is formed in the second valve body; The end surface of the first valve body and the end surface of the second valve body are engaged, and the fastener is arranged at the joint of the end surface of the first valve body and the end surface of the second valve body, and the fastener is used for fixedly connecting the first valve body and the second valve body.

7. The rotary quick connect valve of claim 6, wherein, A flange is annularly arranged on the rear end of the second valve body; A plurality of fixing holes are formed on the flange, and the fixing holes penetrate through the two side surfaces of the flange in the first direction.

8. The rotary quick connect valve of claim 1, wherein, Further comprising an observation window; The observation window is fixedly arranged on the outer surface of the valve shell and communicates with the conveying cavity; the observation window is used for observing the situation in the conveying cavity.

Images