New energy automobile refrigeration valve rod and multi-component sealing test device

Abstract

The invention provides a new energy automobile refrigeration valve rod and multi-component sealing test device which is arranged in a valve seat in a valve, and a valve cavity is formed in the valve seat. A first circulation opening and a second circulation opening are formed in the side face and the bottom of the valve seat correspondingly. The valve comprises a valve rod, a second sealing part, a connecting part and a first sealing part which are connected in sequence. And a valve cover is arranged at the top of the valve rod. According to the new energy automobile refrigeration valve rod and multi-component sealing test device, the concave part is arranged at the connecting part, so that the space occupied by the connecting part can be reduced, and the concave space can be used as a flow channel of a refrigerant, so that the flow rate is increased. The reduced area of the concave part can also increase the axial size of the connecting part, so that the axial distance between the first sealing part and the second sealing part is increased, the operation size of the valve rod from full opening to full closing is reduced, and the opening and closing stroke of the valve rod is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of valve equipment, and in particular to a new energy vehicle refrigeration valve stem and multi-component sealing test device. Background Art

[0002] In new energy vehicles, refrigerant control is usually achieved through various valves in the refrigeration system. The valve includes a valve seat, a valve stem extending into the valve seat, and a valve core arranged inside the valve seat. The valve stem is rotatably arranged on the valve seat, and a rotary seal is formed between the valve stem and the valve seat.

[0003] However, after valves are manufactured, the entire batch needs to be inspected and tested within the factory. Traditional watertightness testing often involves manually fixing individual valves in testing equipment, which is very inconvenient for personnel. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In view of the deficiencies in the prior art, the present invention provides a new energy vehicle refrigeration valve stem and a multi-component sealing test device.

[0006] (2) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a new energy vehicle refrigeration valve stem and multi-component sealing test device, which is arranged in a valve seat in a valve, and a valve cavity is provided in the valve seat. The side and bottom of the valve seat are respectively provided with a first flow port and a second flow port, and include a valve stem, a second sealing portion, a connecting portion and a first sealing portion connected in sequence. A valve cover is provided on the top of the valve stem, and a recessed portion with a radial dimension smaller than the first and second sealing portions is provided on the side of the connecting portion. A multi-component sealing test device for a valve with such a valve stem is also included.

[0008] Preferably, the device comprises a base, a connecting mechanism, a vertical slide, an auxiliary slider, a bottom telescopic rod, two support rod sliders, two feeding mechanisms, and a multi-valve cover switch detection mechanism. A groove is defined on the base, and the support rod slider is slidably engaged with the base. The connecting mechanism is disposed on the support rod slider, and the vertical slide is vertically disposed on the base. The auxiliary slider is slidably engaged with the vertical slide, and the bottom telescopic rod is vertically disposed within the groove. Two multi-valve cover switch detection mechanisms are respectively disposed on the bottom of the auxiliary slider and the movable end of the bottom telescopic rod, and two feeding mechanisms are symmetrically disposed on both sides of the base.

[0009] Preferably, the connection mechanism includes a central ring base, two end bases, two drive motors, and rollers. The central ring base is pivotally connected to the support rod slider, and the two end bases are symmetrically pivoted to the upper and lower ends of the central ring base. The two drive motors are symmetrically arranged about the central circumference of the central ring base and are mounted on the central ring base. The rollers are mounted on the output ends of the drive motors and contact the end bases.

[0010] Preferably, the device further comprises a pump body, which is arranged on the base and communicates with the central ring seat through a conduit.

[0011] Preferably, the connecting mechanism further comprises a drive swivel, a drive slider, a crossbar, a drive shaft, a support rod, and a friction arc block. The drive swivel is mounted on a central ring seat, and the drive slider is slidably engaged with the drive swivel. The crossbar is mounted on the movable end of the drive slider, and the drive shaft is mounted on the crossbar. The support rod is mounted on the movable end of the drive shaft, and the friction arc block is mounted at the bottom of the support rod. The friction arc block corresponds to the surface of the valve cover.

[0012] Preferably, the multi-valve cover switch detection mechanism includes a chassis and a sensor 1. The sensor 1 is arranged on the chassis, and the sensor 1 corresponds to the second flow port.

[0013] Preferably, the multi-valve cover switch detection mechanism further includes four drive shaft seats, four arcuate friction guides, and a linkage rod. The multiple drive shaft seats are arranged on the chassis at equal angles with sensor one as the center. The linkage rod is disposed on the movable end of the drive shaft seats, and the arcuate friction guide is disposed on one end of the linkage rod. The arcuate friction guide contacts the valve cover.

[0014] Preferably, the multi-valve cover switch detection mechanism further includes a plurality of second sensors, which are arranged at equal angles on the inner side of the arc-shaped friction guide rail. The second sensors correspond to the gap between the valve cover and the valve seat.

[0015] Preferably, the feeding mechanism includes a water retaining cover, a slider, a connecting plate, a bottom guide rail, and a top guide rail. A chute is defined on the base, the slider slides within the chute, and the connecting plate slides onto the slider. The top and bottom guide rails are arranged side by side on the connecting plate, with the valve on the top guide rail inverted. The first flow openings on the valves on both the top and bottom guide rails correspond to the expansion joint.

[0016] (3) Beneficial effects

[0017] The present invention provides a new energy vehicle refrigeration valve stem and multi-component sealing test device. It has the following beneficial effects:

[0018] 1. The connection of this cold valve stem features a recessed portion, which reduces the space occupied by the connection. This recessed space serves as a refrigerant flow path, thereby increasing flow. The reduced area of ​​the recessed portion also increases the axial dimension of the connection, thereby increasing the axial distance between the first and second sealing portions. This reduces the operating dimension of the valve stem from fully open to fully closed, shortening the valve stem's opening and closing stroke.

[0019] 2. This new energy vehicle refrigeration valve stem and multi-component seal test device, through the coordinated arrangement of a base, connecting mechanism, vertical slide, auxiliary slider, bottom telescopic rod, two support sliders, two loading mechanisms, and a multi-valve cover opening and closing detection mechanism, enables the invention to simultaneously tighten or loosen the valve covers on multiple valves using a rolling mechanism. Furthermore, the spherical distribution design occupies less space than traditional row-shaped designs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a first plane cross-sectional view of the present invention;

[0021] Figure 2 This is the first stereogram of the present invention;

[0022] Figure 3 This is a second stereoscopic view of the present invention;

[0023] Figure 4 This is a third stereogram of the present invention;

[0024] Figure 5 This is a fourth stereogram of the present invention;

[0025] Figure 6 For the present invention Figure 3 Enlarged view of point A in the middle;

[0026] Figure 7 For the present invention Figure 5 Enlarged view of point B in the middle.

[0027] In the figure: 1 valve stem, 2 valve cover, 3 valve, 4 first sealing part, 5 connecting part, 6 first flow port, 7 second sealing part, 8 second flow port, 9 valve cavity, 10 valve seat, 11 base, 12 support rod slider, 13 groove cavity, 14 feeding mechanism, 15 auxiliary slider, 16 vertical slide, 17 multi-valve cover switch detection mechanism, 18 connecting mechanism, 19 water retaining cover, 20 slide, 21 slider, 22 bottom guide rail, 23 connecting plate, 24 top guide rail, 25 chassis, 26 sensor 2, 27 pump body, 28 sensor 1, 29 bottom telescopic rod, 30 telescopic joint, 31 central ring seat, 32 end seat, 33 drive universal seat, 34 drive motor, 35 roller, 36 drive swivel, 37 drive shaft, 38 support rod, 39 cross bar, 40 friction arc block, 41 drive slider, 42 arc friction guide, 43 linkage rod, 44 drive shaft seat. DETAILED DESCRIPTION

[0028] The embodiment of the present invention provides a new energy vehicle refrigeration valve stem and multi-component sealing test device, such as Figure 1-7 As shown, in new energy vehicles, the refrigerant is usually controlled by various valves in the refrigeration system, and the maintenance of various components in the refrigeration system is convenient. When the switching stroke of the valve stem is short, the valve body and the valve opening value become smaller, which will cause the flow rate of the stop valve to become smaller when it is in the upper sealing state. If the flow rate of the valve needs to be increased, the distance between the sealing surfaces needs to be reduced; however, this will increase the switching stroke of the valve stem and increase the overall length of the valve, thereby increasing the cost. In the present invention, a valve stem 1, a second sealing part 7, a connecting part 5 and a first sealing part 4 are connected in sequence. A valve cover 2 is provided on the top of the valve stem 1, and a recessed part with a radial dimension smaller than the first sealing part 4 and the second sealing part 7 is provided on the side of the connecting part 5. A multi-component sealing test device for a valve 3 with the valve stem is also included.

[0029] At the same time, a sealing joint is provided between the valve stem 1 and the valve cover 2. The inner side of the sealing joint is connected to the valve stem 1 through a sealing ring, and the outer side of the sealing joint is tightly connected to the valve cover 2 through another sealing ring, which can increase the sealing and pressure resistance and avoid leakage.

[0030] It includes a base 11, a connecting mechanism 18, a vertical slide 16, an auxiliary slider 15, a bottom telescopic rod 29, two support rod sliders 12, two feeding mechanisms 14 and a multi-valve cover switch detection mechanism 17. A groove cavity 13 is provided on the base 11, and the support rod slider 12 is slidably fitted on the base 11. The connecting mechanism 18 is arranged on the support rod slider 12, and the vertical slide 16 is vertically arranged on the base 11. The auxiliary slider 15 is slidably fitted on the vertical slide 16, and the bottom telescopic rod 29 is vertically arranged in the groove cavity 13. The two multi-valve cover switch detection mechanisms 17 are respectively arranged on the bottom of the auxiliary slider 15 and the movable end of the bottom telescopic rod 29, and the two feeding mechanisms 14 are symmetrically arranged on both sides of the base 11.

[0031] The connecting mechanism 18 comprises a central ring base 31, two end bases 32, two drive motors 34, and rollers 35. The central ring base 31 is pivotally connected to the support slider 12, while the two end bases 32 are symmetrically pivoted at the upper and lower ends of the central ring base 31. The two drive motors 34 are symmetrically arranged about the central circumference of the central ring base 31 and are mounted on the central ring base 31. Rollers 35 are mounted at the output ends of the drive motors 34 and contact the end bases 32.

[0032] The utility model further comprises a pump body 27, which is arranged on the base 11. The pump body 27 is communicated with the central ring seat 31 through a conduit.

[0033] The connecting mechanism 18 also includes a drive swivel 36, a drive slider 41, a crossbar 39, a drive shaft 37, a support rod 38, and a friction arc block 40. The drive swivel 36 is mounted on the central ring seat 31, and the drive slider 41 is slidably engaged with the drive swivel 36. The crossbar 39 is mounted on the movable end of the drive slider 41, and the drive shaft 37 is mounted on the crossbar 39. The support rod 38 is mounted on the movable end of the drive shaft 37, and the friction arc block 40 is mounted at the bottom of the support rod 38. The friction arc block 40 corresponds to the surface of the valve cover 2.

[0034] The multi-valve cover switch detection mechanism 17 includes a base plate 25 and a sensor 1 28. The sensor 1 28 is arranged on the base plate 25 and corresponds to the second flow port 8.

[0035] The multi-valve cover switch detection mechanism 17 also includes four drive shaft seats 44, four arcuate friction guides 42, and a linkage rod 43. The drive shaft seats 44 are arranged on the chassis 25 at equal angles around sensor 1 28. The linkage rod 43 is mounted on the movable end of the drive shaft seats 44, and the arcuate friction guide 42 is mounted on one end of the linkage rod 43. The arcuate friction guide 42 contacts the valve cover 2.

[0036] The multi-valve cover switch detection mechanism 17 further includes a plurality of second sensors 26 , which are arranged at equal angles on the inner side of the arc-shaped friction guide rail 42 . The second sensors 26 correspond to the gap between the valve cover 2 and the valve seat 10 .

[0037] The feeding mechanism 14 includes a water retaining cover 19, a slider 21, a connecting plate 23, a bottom guide rail 22, and a top guide rail 24. A chute 20 is defined on the base 11. The slider 21 slides within the chute 20, and the connecting plate 23 slides onto the slider 21. The top guide rail 24 and the bottom guide rail 22 are arranged side by side on the connecting plate 23. The valve 3 on the top guide rail 24 is inverted. The first flow opening 6 on the valve 3 on both the top guide rail 24 and the bottom guide rail 22 corresponds to the expansion joint 30.

[0038] Working principle: When in use, first, multiple valves 3 are sent into the top guide rail 24 and the bottom guide rail 22 respectively through the conveyor belt. Since the first flow port 6 thereon is close to the telescopic joint 30, the universal seat 33 and the telescopic joint 30 are controlled to drive so that the telescopic joint 30 is inserted into the first flow port 6 and connected to the valve 3. Then, the universal seat 33 is controlled to drive to move the valve 3 out. At the same time, the two drive motors 34 are controlled to work to drive the rollers 35 to rotate the two end seats 32. Repeat the operation to connect the multiple valves 3 to the multiple telescopic joints 30 on the end seats 32. Then, the support rod slider 12 is controlled to move between the two chassis 25. Then, the auxiliary slider 15 and the bottom telescopic rod 29 are controlled to move the chassis 25 to the vicinity of the connecting mechanism 18. Then, the drive shaft seat 44 is controlled to lift the linkage rod 43, so that the multiple arc-shaped friction guide rails 42 contact each other to form a circular track. Then, the universal seat 33 is controlled to make the valve cover 2 contact the arc-shaped friction guide 42, and the end seat 32 is controlled to rotate, thereby making the multiple valve covers 2 roll on the arc-shaped friction guide 42. The valve closing or opening operation is completed.

[0039] However, since the closing and opening forces of the valve covers 2 of different valves are also different, when the friction force between the valve cover 2 and the arc-shaped friction guide rail 42 is insufficient to achieve the operation purpose, the control driving slider 41 and the driving shaft 37 will apply downward pressure of the friction arc block 40 to the valve cover 2 close to the friction arc block 40, and at the same time drive the slider 41 to move quickly along the driving swivel 36. Since the speed of the friction arc block 40 is greater than the speed of the valve cover 2 on the arc-shaped friction guide rail 42, the valve cover 2 is forced to rotate a second time to complete the normal valve opening and closing operations.

[0040] When the valve is closed, pump 27 delivers coolant or other liquids and gases along support slider 12 into central ring seat 31. The coolant then flows through central ring seat 31, along drive universal seat 33, and expansion joint 30 into valve seat 10. Sensor 1 28 then determines the product's conformity based on whether coolant drips from its lower through-hole. Simultaneously, as valve cover 2 moves on arcuate friction guide 42, sensor 2 26 detects any leakage between valve cover 2 and valve seat 10.

[0041] When the experiment is completed, the central ring seat 31 can be controlled to rotate horizontally on the support rod slider 12, forcing multiple expansion joints 30 to correspond to the top guide rails 24 and the bottom guide rails 22 on both sides. Then the slider 21 is controlled to move along the slide 20 to force the two water retaining covers 19 to approach each other, thereby forming a relatively closed space. Personnel control the pump body 27 to work and spray cleaning liquid from the expansion joint 30 to clean the bottom guide rails 22 and the top guide rails 24 on both sides.

[0042] In summary, the new energy vehicle refrigeration valve stem and multi-component seal testing device, through the coordinated arrangement of the base 11, connecting mechanism 18, vertical slide 16, auxiliary slider 15, bottom telescopic rod 29, two support sliders 12, two loading mechanisms 14, and multi-valve cover switch detection mechanism 17, enables the invention to simultaneously tighten or loosen the valve covers 2 on multiple valves using a rolling mechanism. Furthermore, the spherical distribution design occupies less space than traditional row-shaped designs.

Claims

1. A new energy vehicle refrigeration valve stem is arranged in a valve seat (10) in a valve (3), a valve cavity (9) is provided in the valve seat (10), and a first flow port (6) and a second flow port (8) are respectively provided on the side and bottom of the valve seat (10), characterized in that: The invention comprises a valve stem (1), a second sealing portion (7), a connecting portion (5) and a first sealing portion (4) connected in sequence, wherein a valve cover (2) is provided on the top of the valve stem (1), and a recessed portion having a radial dimension smaller than that of the first sealing portion (4) and the second sealing portion (7) is provided on the side of the connecting portion (5), and further comprises a multi-component sealing test device for a valve (3) having the valve stem.

2. A multi-component sealing test device according to claim 1, characterized in that: The invention comprises a base (11), a connecting mechanism (18), a vertical slide (16), an auxiliary slider (15), a bottom telescopic rod (29), two support rod sliders (12), two feeding mechanisms (14) and a multi-valve cover switch detection mechanism (17), wherein a groove cavity (13) is provided on the base (11), the support rod slider (12) is slidably fitted on the base (11), the connecting mechanism (18) is arranged on the support rod slider (12), the vertical slide (16) is vertically arranged on the base (11), the auxiliary slider (15) is slidably fitted on the vertical slide (16), the bottom telescopic rod (29) is vertically arranged in the groove cavity (13), the two multi-valve cover switch detection mechanisms (17) are respectively arranged at the bottom of the auxiliary slider (15) and the movable end of the bottom telescopic rod (29), and the two feeding mechanisms (14) are symmetrically arranged on both sides of the base (11).

3. A multi-component sealing test device according to claim 2, characterized in that: The connecting mechanism (18) comprises a central ring seat (31), two end seats (32), two drive motors (34) and a roller (35); the central ring seat (31) is pivotally connected to the support rod slider (12); the two end seats (32) are symmetrically pivotally connected to the upper and lower ends of the central ring seat (31); the two drive motors (34) are symmetrical about the central circumference of the central ring seat (31); the drive motors (34) are arranged on the central ring seat (31); the roller (35) is arranged on the output end of the drive motor (34); and the roller (35) is in contact with the end seat (32).

4. A multi-component sealing test device according to claim 3, characterized in that: The invention also comprises a pump body (27), wherein the pump body (27) is arranged on the base (11), and the pump body (27) is communicated with the central ring seat (31) through a conduit.

5. A multi-component sealing test device according to claim 4, characterized in that: The connecting mechanism (18) further comprises a driving swivel (36), a driving slider (41), a cross bar (39), a driving shaft (37), a support rod (38) and a friction arc block (40), wherein the driving swivel (36) is arranged on the central ring seat (31), the driving slider (41) is slidably fitted on the driving swivel (36), the cross bar (39) is arranged on the movable end of the driving slider (41), the driving shaft (37) is arranged on the cross bar (39), the support rod (38) is arranged on the movable end of the driving shaft (37), the friction arc block (40) is arranged at the bottom of the support rod (38), and the friction arc block (40) corresponds to the surface of the valve cover (2).

6. A multi-component sealing test device according to claim 5, characterized in that: The multi-valve cover switch detection mechanism (17) includes a chassis (25) and a sensor (28). The sensor (28) is arranged on the chassis (25) and corresponds to the second flow port (8).

7. A multi-component sealing test device according to claim 6, characterized in that: The multi-valve cover switch detection mechanism (17) also includes four drive shaft seats (44), four arc-shaped friction guide rails (42) and a linkage rod (43). The multiple drive shaft seats (44) are arranged on the chassis (25) at equal angles with sensor 1 (28) as the center. The linkage rod (43) is arranged on the movable end of the drive shaft seat (44). The arc-shaped friction guide rail (42) is arranged on one end of the linkage rod (43). The arc-shaped friction guide rail (42) is in contact with the valve cover (2).

8. The multi-component sealing test device according to claim 7, characterized in that: The multi-valve cover switch detection mechanism (17) also includes a plurality of second sensors (26), which are arranged at equal angles on the inner side of the arc-shaped friction guide rail (42), and the second sensors (26) correspond to the gap between the valve cover (2) and the valve seat (10).

9. The multi-component sealing test device according to claim 8, characterized in that: The feeding mechanism (14) includes a water retaining cover (19), a slider (21), a connecting plate (23), a bottom guide rail (22) and a top guide rail (24); a slide groove (20) is provided on the base (11); the slider (21) is slidably fitted in the slide groove (20); the connecting plate (23) is slidably fitted on the slider (21); the top guide rail (24) and the bottom guide rail (22) are arranged side by side on the connecting plate (23); the valve (3) on the top guide rail (24) is inverted; and the first flow openings (6) on the valves (3) on the top guide rail (24) and the bottom guide rail (22) correspond to the telescopic joint (30).

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