Valve and turnover box having same

Abstract

The present invention provides a valve and a turnover box having the same, wherein the valve comprises: a valve body, the valve body having a liquid inlet portion, the liquid inlet portion having a liquid inlet channel for liquid to enter; a valve base, the valve base is arranged on the liquid inlet portion, the valve base is used to connect with a liquid bag, and the liquid outlet of the liquid bag is connected with the liquid inlet channel; wherein the liquid inlet portion comprises a supporting portion, the supporting portion is located on the side of the cavity of the valve base close to the liquid bag; a liquid inlet hole is arranged on the supporting portion, the liquid inlet hole extends to the inner wall surface and the outer wall surface of the liquid inlet portion, so as to solve the problem of low unloading efficiency of the liquid turnover box in the prior art.

Description

Technical Field

[0001] The present invention relates to the field of material transportation, and in particular to a valve and a turnover box having the same. Background Art

[0002] At present, turnover boxes are widely used in the packaging and transportation of liquid goods or granular and powdered goods. The difference from traditional turnover boxes is that the turnover boxes used for the packaging and transportation of liquid goods, granular and powdered goods, in addition to meeting the strength requirements of conventional turnover boxes and facilitating long-distance transportation and handling and unloading, must also have the function of free material unloading.

[0003] When transporting liquid, a liquid bag needs to be placed inside the turnover box, and the liquid bag has a discharge port, and a discharge valve is provided on the discharge port. During transportation, closing the valve can prevent the liquid contained in the turnover box from flowing out. When unloading, opening the valve can allow the liquid to flow out through the valve to achieve the function of self-discharging of materials.

[0004] However, during unloading, a portion of the liquid will accumulate in the liquid bag and cannot enter the valve channel, making it difficult to unload the remaining liquid in the liquid bag, thereby reducing the unloading efficiency of the liquid turnover box. Summary of the invention

[0005] The main purpose of the present invention is to provide a valve and a turnover box having the same, so as to solve the problem of low unloading efficiency of liquid turnover boxes in the prior art.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, there is provided a valve, comprising: a valve body, the valve body having a liquid inlet portion, the liquid inlet portion having a liquid inlet channel for liquid to enter; a valve base, the valve base being arranged on the liquid inlet portion, the valve base being used to be connected to a liquid bag, the liquid outlet of the liquid bag being connected to the liquid inlet channel; wherein the liquid inlet portion comprises a supporting portion, the supporting portion being located on the side of the cavity of the valve base close to the liquid bag; a liquid inlet hole is arranged on the supporting portion, the liquid inlet hole extending to the inner wall surface and the outer wall surface of the liquid inlet portion.

[0007] Furthermore, there are multiple liquid inlet holes, and the multiple liquid inlet holes are arranged at intervals along the circumference of the liquid inlet portion.

[0008] Furthermore, there are four liquid inlet holes, and the four liquid inlet holes are evenly distributed along the circumference of the liquid inlet.

[0009] Furthermore, the liquid inlet portion is tubular, the liquid inlet hole is a cylindrical hole, and the center line of the cylindrical hole is arranged to intersect with the axis of the liquid inlet portion.

[0010] Furthermore, the liquid inlet part is tubular, and the valve base is sleeved on the liquid inlet part; a first clamping part is provided on the liquid inlet part, and a second clamping part for cooperating with the first clamping part is provided on the valve base, so that the valve base can be locked on the liquid inlet part through the cooperation between the first clamping part and the second clamping part.

[0011] Furthermore, the valve base has a sleeve hole for being sleeved on the liquid inlet portion, and the sleeve hole and the tube wall of the liquid inlet portion are in interference fit.

[0012] Furthermore, the first clamping portion is a clamping protrusion protruding from the outer peripheral surface of the liquid inlet portion, and the second clamping portion is a clamping end surface, so that after the valve base is sleeved on the liquid inlet portion, the clamping protrusion is clamped on the clamping end surface.

[0013] Furthermore, there are multiple clamping protrusions, which are arranged at intervals along the circumference of the liquid inlet; the clamping end face is annular, which is arranged around the liquid inlet, and the multiple clamping protrusions are all clamped on the clamping end face.

[0014] Furthermore, the first clamping portion is a clamping protrusion protruding from the outer peripheral surface of the liquid inlet portion, and the second clamping portion is a clamping groove, so that after the valve base is sleeved on the liquid inlet portion, the clamping protrusion is clamped in the clamping groove.

[0015] Furthermore, a plurality of elastic holes are arranged on the liquid inlet portion, and the plurality of elastic holes are arranged at intervals along the circumference of the liquid inlet portion, so that the liquid inlet portion is deformed under the action of the plurality of elastic holes when subjected to external force; and the clamping protrusion is arranged between two adjacent elastic holes.

[0016] Furthermore, the liquid inlet portion is a tube body, the elastic hole is a strip-shaped hole, and the length direction of the strip-shaped hole is parallel to the axial direction of the liquid inlet portion.

[0017] Furthermore, a sealing protrusion is provided on the liquid inlet portion, and the sealing protrusion protrudes from the outer peripheral surface of the liquid inlet portion so that the sealing protrusion abuts against the inner wall surface of the valve base.

[0018] Furthermore, the sealing protrusion is an annular protrusion, and the annular protrusion is arranged around the outer peripheral surface of the liquid inlet portion.

[0019] Furthermore, there are multiple sealing protrusions, and the multiple sealing protrusions are arranged at intervals along the extension direction of the liquid inlet portion.

[0020] Furthermore, the valve body includes a mounting plate and a liquid outlet portion, the liquid inlet portion and the liquid outlet portion are arranged on opposite sides of the mounting plate, the liquid outlet portion has a liquid outlet hole, and the liquid outlet hole is connected to the liquid inlet hole; a third clamping portion is arranged on the mounting plate, and the mounting plate is connected to the mounting base through the third clamping portion.

[0021] Furthermore, the valve also includes: a valve core, which is rotatably mounted on the liquid outlet portion, with at least a portion of the valve core located in the liquid outlet hole, so as to control the on / off state of the liquid outlet hole by rotating the valve core; a sealing ring, which is clamped between the valve core and the inner wall of the liquid outlet hole, so as to seal the valve core and the inner wall of the liquid outlet hole through the sealing ring; wherein, when the valve core is located in a position for placing the liquid outlet hole in an off-circuit state, the sealing ring is located on the side of the rotation axis of the valve core away from the liquid inlet portion.

[0022] Furthermore, the liquid outlet has a transition hole section, and the inner wall surface of the transition hole section is formed by rotating the first arc line around the center line of the liquid outlet hole; the valve core has a transition part, and the outer wall surface of the transition part is formed by rotating the second arc line around the axis of the valve core; the transition part cooperates with the transition hole section, and the sealing ring is arranged on the transition part.

[0023] Furthermore, the valve also includes: a first rotating shaft and a second rotating shaft, the first rotating shaft and the second rotating shaft are both arranged on the valve body, and the valve core is connected to the first rotating shaft and the second rotating shaft to support the valve core through the first rotating shaft and the second rotating shaft; an operating handle, the operating handle is connected to the first rotating shaft to drive the valve core to rotate relative to the valve body through the first rotating shaft; wherein a first clamping portion is provided on the first rotating shaft, and a second clamping portion is provided on the second rotating shaft, and the first clamping portion and the second clamping portion are both clamped on the valve body to axially limit the first rotating shaft and the second rotating shaft.

[0024] Furthermore, a first clamping groove for cooperating with a first clamping portion is provided on the valve body, and the first clamping portion is clamped in the first clamping groove; the first clamping groove extends around the rotation axis of the valve core so that the first clamping portion slides along the first clamping groove when the first rotating shaft rotates relative to the valve body; and / or, a second clamping groove for cooperating with a second clamping portion is provided on the valve body, and the second clamping portion is located in the second clamping groove; the second rotating shaft is fixed to the valve body by the cooperation between the second clamping portion and the second clamping groove, and the valve core is rotatably arranged relative to the second rotating shaft.

[0025] Furthermore, the operating handle includes a handle portion and a driving portion, and the driving portion is connected to the shaft portion of the first rotating shaft; a first limiting protrusion is provided on the driving portion, and a second limiting protrusion matching the first limiting protrusion is provided on the mounting plate to limit the rotation angle of the operating handle through the cooperation between the first limiting protrusion and the second limiting protrusion.

[0026] Furthermore, a first stop portion and a second stop portion are provided on the mounting plate, and a third stop portion and a fourth stop portion are provided on the driving portion. The first stop portion cooperates with the third stop portion, and the second stop portion cooperates with the fourth stop portion, so as to limit the rotation angle of the operating handle within a predetermined range; the first limit protrusion is located between the third stop portion and the fourth stop portion, and the second limit protrusion is located between the first stop portion and the second stop portion, so that when the valve core is switched from a closed position to an open position, the second limit protrusion rotates past the second stop portion and abuts against the first limit protrusion.

[0027] Further, the first stop portion includes a plurality of stop ridges, the plurality of stop ridges are arranged in parallel, the third stop portion is a first stop end surface used for the first stop portions to stop each other; and / or, the second stop portion is a bent plate, the bent plate has a stop plate surface, and the fourth stop portion has a second stop end surface used for stopping each other with the stop plate surface.

[0028] Furthermore, the valve body also includes a liquid outlet end cover for covering the liquid outlet port of the liquid outlet part, the liquid outlet end cover has a stop end face, and the fourth stop part has a third stop end face that stops mutually with the stop end face, so that when the valve core is in a position where the third stop end face is located for putting the liquid outlet hole in an off-circuit state, the first stop part and the third stop part stop mutually, and the stop end face and the third stop end face stop mutually.

[0029] Furthermore, a first connecting portion is provided on the operating handle, and a second connecting portion is provided on the liquid outlet cover, so that the liquid outlet cover is connected to the operating handle via a connecting piece connected between the first connecting portion and the second connecting portion.

[0030] Further, the first connecting portion is a first connecting hole, the second connecting portion is a lug structure having a second connecting hole, and the connecting member is a connecting rope connected to both the first connecting hole and the second connecting hole.

[0031] Furthermore, there are multiple second connection parts, and the multiple second connection parts are arranged at intervals along the circumference of the liquid outlet end cover.

[0032] According to another aspect of the present invention, a turnover box is provided, comprising a base and a valve arranged on the base, the valve being used to connect with a liquid bag so that liquid in the liquid bag flows out through the valve, and the valve is the above-mentioned valve body.

[0033] The technical solution of the present invention is applied, and the valve includes a valve body and a valve base, the valve body has a liquid inlet, the liquid inlet has a liquid inlet channel for liquid to enter, the valve base is arranged on the liquid inlet, the valve base is used to connect with the liquid bag, and the liquid outlet of the liquid bag is connected with the liquid inlet channel, so that the liquid in the liquid bag can flow into the liquid inlet channel of the liquid inlet; wherein the liquid inlet includes a support portion, and the support portion is located on the side of the cavity of the valve base close to the liquid bag; the support portion is provided with a liquid inlet hole, and the liquid inlet hole extends to the inner wall surface and the outer wall surface of the liquid inlet, so that the liquid between the valve base and the liquid inlet can enter the liquid inlet channel through the liquid inlet hole. Preferably, the valve base is detachably mounted on the liquid inlet, which can facilitate the disassembly and assembly of the valve base, the replacement of the valve base and the maintenance of the valve body. In specific use, the liquid bag is connected to the valve base to make the liquid in the liquid bag flow out through the liquid inlet channel, and by arranging the liquid inlet hole on the liquid inlet, the liquid in the liquid bag can flow into the liquid inlet channel through the liquid inlet hole, thereby increasing the outflow speed of the liquid. In addition, since residual liquid often remains at the bottom of the liquid bag, by utilizing the valve of the present invention, the residual liquid in the liquid bag can flow into the liquid inlet channel through the liquid inlet hole, so that the liquid in the liquid bag can completely flow into the liquid inlet channel. At the same time, in order to prevent the liquid bag from being adsorbed in the liquid inlet channel due to pressure when draining, a support portion is provided to support the liquid bag. The above-mentioned valve is installed on the liquid turnover box, which greatly improves the unloading efficiency of the liquid turnover box and solves the problem of low unloading efficiency of the liquid turnover box in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0035] Figure 1 A schematic structural diagram of an embodiment of a valve body according to the present invention is shown;

[0036] Figure 2 A schematic structural diagram of an embodiment of a valve body according to the present invention from one viewing angle is shown;

[0037] Figure 3 shows a front view of a valve body according to the present invention;

[0038] Figure 4 Shown according to Figure 3 AA section view of the valve body;

[0039] Figure 5 shows a side view of a valve body according to the present invention;

[0040] Figure 6 An exploded view of the valve core, the first rotating shaft and the second rotating shaft according to the present invention is shown;

[0041] Figure 7 A schematic structural diagram of an embodiment of a first clamping portion and a second clamping portion according to the present invention is shown;

[0042] Figure 8 A schematic structural diagram of an embodiment of a turnover box according to the present invention is shown.

[0043] The above drawings include the following reference numerals:

[0044] 2. Base; 10. Valve body; 11. Liquid inlet; 110. Liquid inlet channel; 111. Support; 112. Liquid inlet hole; 113. First clamping part; 114. Elastic hole; 115. Sealing protrusion; 12. Mounting plate; 120. Third clamping part; 121. Second limit protrusion; 122. First stopper; 123. Second stopper; 13. Liquid outlet; 130. Liquid outlet hole; 1301. Transition hole section; 14. First clamping groove; 15. Second clamping groove;

[0045] 20. Valve base; 201. Second clamping part; 30. Valve core; 31. Transition part; 32. Clamping hole; 40. Sealing ring; 50. First rotating shaft; 51. First clamping part; 52. First sealing member; 53. Clamping shaft section; 60. Second rotating shaft; 61. Second clamping part; 62. Second sealing member; 70. Operating handle; 71. Handle part; 72. Driving part; 720. First limiting protrusion; 721. Third stopping part; 722. Fourth stopping part; 73. First connecting part; 80. Liquid outlet end cover; 81. Stop end face; 82. Second connecting part. DETAILED DESCRIPTION

[0046] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0047] The present invention provides a valve, please refer to Figures 1 to 6 , including: a valve body 10, the valve body 10 has a liquid inlet part 11, the liquid inlet part 11 has a liquid inlet channel 110 for liquid to enter; a valve base 20, the valve base 20 is arranged on the liquid inlet part 11, the valve base 20 is used to connect with the liquid bag, and the liquid outlet of the liquid bag is connected with the liquid inlet channel 110; wherein the liquid inlet part 11 includes a support part 111, the support part 111 is located on the side of the cavity of the valve base 20 close to the liquid bag; the support part 111 is provided with a liquid inlet hole 112, and the liquid inlet hole 112 extends to the inner wall surface and the outer wall surface of the liquid inlet part 11. .

[0048] According to the valve provided by the present invention, the valve includes a valve body 10 and a valve base 20, the valve body 10 has a liquid inlet portion 11, the liquid inlet portion 11 has a liquid inlet channel 110 for liquid to enter, the valve base 20 is arranged on the liquid inlet portion 11, the valve base 20 is used to be connected with a liquid bag, and the liquid outlet of the liquid bag is communicated with the liquid inlet channel 110, so that the liquid in the liquid bag can flow into the liquid inlet channel 110 of the liquid inlet portion 11; wherein the liquid inlet portion 11 includes a supporting portion 111, and the supporting portion 111 is located on the side of the cavity of the valve base 20 close to the liquid bag; a liquid inlet hole 112 is arranged on the supporting portion 111, and the liquid inlet hole 112 extends to the inner wall surface and the outer wall surface of the liquid inlet portion 11, so that the liquid between the valve base 20 and the liquid inlet portion 11 can enter the liquid inlet channel 110 through the liquid inlet hole 112. Preferably, the valve base 20 is detachably mounted on the liquid inlet portion 11, which can facilitate the disassembly and assembly of the valve base 20, the replacement of the valve base 20 and the maintenance of the valve body 10. In specific use, the liquid bag is connected to the valve base 20 to allow the liquid in the liquid bag to flow out through the liquid inlet channel 110. By providing the liquid inlet hole 112 on the liquid inlet portion 11, the liquid in the liquid bag can flow into the liquid inlet channel 110 through the liquid inlet hole 112, thereby increasing the outflow speed of the liquid. In addition, since residual liquid often remains at the bottom of the liquid bag, by utilizing the valve of the present invention, the residual liquid in the liquid bag can flow into the liquid inlet channel 110 through the liquid inlet hole 112, so that the liquid in the liquid bag can completely flow into the liquid inlet channel 110. At the same time, in order to prevent the liquid bag from being adsorbed in the liquid inlet channel 110 due to pressure when the liquid bag is draining, a support portion 111 is provided to support the liquid bag. The above-mentioned valve is installed on the liquid turnover box, which greatly improves the unloading efficiency of the liquid turnover box and solves the problem of low unloading efficiency of the liquid turnover box in the prior art.

[0049] Specifically, the height of the support portion 111 is 0 cm to 20 cm.

[0050] In this embodiment, if Figure 1 As shown, there are multiple liquid inlet holes 112, and the multiple liquid inlet holes 112 are arranged at intervals along the circumference of the liquid inlet portion 11, ensuring that during the unloading process, the residual liquid in the liquid bag can completely flow into the liquid inlet channel 110 through the multiple liquid inlet holes 112, so that the unloading is more thorough. Preferably, there are four liquid inlet holes 112, and the four liquid inlet holes are evenly distributed along the circumference of the liquid inlet portion 11, the diameter of the liquid inlet holes 112 is 0.5cm to 3cm, and the diameter of the liquid inlet channel 110 is 4cm to 30cm. It should be noted here that the number of liquid inlet holes 112 is at least four.

[0051] In this embodiment, one arrangement of the liquid inlet 112 is as follows: Figure 1As shown, the liquid inlet portion 11 is tubular, and the liquid inlet hole 112 is a cylindrical hole, and the center line of the cylindrical hole is arranged to intersect with the axis of the liquid inlet portion 11. This arrangement enables the liquid to flow into the liquid inlet channel 110 along the radial direction of the liquid inlet portion 11 to guide the liquid. This arrangement enables the liquid to flow into the liquid inlet channel 110 as quickly as possible, increases the unloading speed, and ensures that the residual liquid in the liquid bag flows into the liquid inlet channel 110 more completely through the liquid inlet hole 112.

[0052] Another arrangement of the liquid inlet hole 112 in this embodiment is that the liquid inlet portion 11 is tubular, the liquid inlet hole 112 is a cylindrical hole, the centerline of the cylindrical hole and the axial centerline of the liquid inlet portion 11 form a predetermined angle, and the predetermined angle is an obtuse angle or an acute angle, so that the liquid flows into the liquid inlet channel 110 along the extension direction of the liquid inlet hole 112.

[0053] like Figure 2 As shown, the liquid inlet 11 is tubular, and the valve base 20 is sleeved on the liquid inlet 11; the liquid inlet 11 is provided with a first clamping portion 113, and the valve base 20 is provided with a second clamping portion 201 for cooperating with the first clamping portion 113, so that the valve base 20 is locked on the liquid inlet 11 through the cooperation between the first clamping portion 113 and the second clamping portion 201. The mutually clamping connection between the valve base 20 and the liquid inlet 11 can facilitate the installation and removal of the valve base 20, and at the same time can ensure the connection stability of the valve base 20 and the liquid inlet 11.

[0054] Furthermore, the valve base 20 has a sleeve hole for sleeved on the liquid inlet 11, and the sleeve hole and the tube wall of the liquid inlet 11 are interference fit. Such a setting can effectively prevent liquid from leaking out from between the hole wall of the sleeve hole and the tube wall of the liquid inlet 11, thereby avoiding liquid leakage.

[0055] Specifically, the first clamping portion 113 is a clamping protrusion protruding from the outer peripheral surface of the liquid inlet portion 11, and the second clamping portion 201 is a clamping end surface, so that after the valve base 20 is sleeved on the liquid inlet portion 11, the clamping protrusion is clamped on the clamping end surface. This arrangement can largely prevent the valve base 20 from falling off the liquid inlet portion 11.

[0056] In order to ensure the clamping effect, Figure 1 As shown, there are multiple clamping protrusions, and the multiple clamping protrusions are arranged at intervals along the circumference of the liquid inlet portion 11; the clamping end face is annular, and the clamping end face is arranged around the liquid inlet portion 11, and the multiple clamping protrusions are all clamped on the clamping end face, so that the valve base 20 is limited by the multiple clamping protrusions, thereby increasing the connection tightness between the valve base 20 and the liquid inlet portion 11.

[0057] In another embodiment provided by the present invention, the first clamping portion 113 is a clamping protrusion protruding from the outer peripheral surface of the liquid inlet portion 11, and the second clamping portion 201 is a clamping groove, so that after the valve base 20 is sleeved on the liquid inlet portion 11, the clamping protrusion is clamped in the clamping groove. The clamping protrusion cooperates with the clamping groove to facilitate the connection between the valve base 20 and the liquid inlet portion 11.

[0058] like Figure 2 and Figure 3 As shown, the liquid inlet portion 11 is provided with a plurality of elastic holes 114, which are arranged at intervals along the circumference of the liquid inlet portion 11, so that the liquid inlet portion 11 is deformed under the action of the plurality of elastic holes 114 when subjected to external force; the clamping protrusion is arranged between two adjacent elastic holes 114. Preferably, both ends of the clamping protrusion extend to two adjacent elastic holes 114.

[0059] By providing the elastic hole 114, on the one hand, the liquid inlet portion 11 can be elastically deformed, and then when the inner wall surface of the valve base 20 is relatively abutted against the clamping protrusion, the liquid inlet portion 11 can be elastically deformed, and then the valve base 20 can move to the side of the clamping protrusion away from the liquid inlet of the liquid inlet portion 11; on the other hand, after the clamping protrusion is clamped on the clamping end surface, part of the liquid in the liquid bag can flow into the elastic hole 114 along the clamping end surface, so as to prevent residual liquid from remaining on the clamping end surface and make the unloading more thorough.

[0060] Specifically, the liquid inlet 11 is a tube, and the elastic hole 114 is a strip hole, and the length direction of the strip hole is parallel to the axial direction of the liquid inlet 11. In this way, the elastic deformation effect of the liquid inlet 11 can be ensured, so that the outer wall of the liquid inlet 11 has a tendency to expand and contract toward the inside and outside of the liquid inlet 11. Preferably, the strip hole extends along the extension direction of the liquid inlet 11.

[0061] In order to increase the sealing performance of the connection between the valve base 20 and the liquid inlet 11, Figure 3 and Figure 4 As shown, a sealing protrusion 115 is provided on the liquid inlet portion 11 , and the sealing protrusion 115 protrudes from the outer peripheral surface of the liquid inlet portion 11 so that the sealing protrusion 115 abuts against the inner wall surface of the valve base 20 .

[0062] In the embodiment provided by the present invention, the sealing protrusion 115 is an annular protrusion, and the annular protrusion is arranged around the outer peripheral surface of the liquid inlet portion 11. In a specific implementation, there are multiple sealing protrusions 115, and the multiple sealing protrusions 115 are arranged at intervals along the extension direction of the liquid inlet portion 11. This arrangement does not require a separate sealing device to be arranged between the valve base 20 and the liquid inlet portion 11, which reduces the cost and makes the structure simpler. At the same time, it is also convenient for the disassembly and assembly of the valve base 20. By providing multiple sealing protrusions 115, the sealing performance of the valve base 20 and the liquid inlet portion 11 is improved.

[0063] like Figure 4 As shown, the valve body 10 includes a mounting plate 12 and a liquid outlet portion 13. The liquid inlet portion 11 and the liquid outlet portion 13 are arranged on opposite sides of the mounting plate 12. The liquid outlet portion 13 has a liquid outlet hole 130, and the liquid outlet hole 130 is connected to the liquid inlet hole 112. A third clamping portion 120 is arranged on the mounting plate 12, and the mounting plate 12 is connected to the mounting base through the third clamping portion 120.

[0064] In the embodiment provided by the present invention, the mounting base refers to a turnover box, the mounting plate 12 is connected to the body of the turnover box through the third clamping portion 120 , and the liquid in the liquid bag is discharged through the liquid outlet portion 13 .

[0065] The valve further includes: a valve core 30, which is rotatably mounted on the liquid outlet 13, and at least part of the valve core 30 is located in the liquid outlet hole 130, so as to control the opening and closing of the liquid outlet hole 130 by rotating the valve core 30; and a sealing ring 40, which is sandwiched between the valve core 30 and the inner wall of the liquid outlet hole 130, so as to seal the valve core 30 and the inner wall of the liquid outlet hole 130 through the sealing ring 40; wherein, when the valve core 30 is located at a position for making the liquid outlet hole 130 in an off-circuit state, the sealing ring 40 is located on the side of the rotation axis of the valve core 30 away from the liquid inlet 11. Such a setting can prevent leakage between the valve core 30 and the liquid outlet 130, and at the same time, the sealing ring 40 is arranged on the side of the rotation axis of the valve core 30 on the principle liquid inlet 11, so as to avoid the driving device for driving the valve core 30 to rotate, which not only ensures the sealing performance of the valve, but also facilitates the driving of the valve core 30 to rotate.

[0066] In the specific implementation process, the liquid outlet 130 has a transition hole section 1301, and the inner wall surface of the transition hole section 1301 is formed by rotating the first arc line around the hole center line of the liquid outlet 130; the valve core 30 has a transition part 31, and the outer wall surface of the transition part 31 is formed by rotating the second arc line around the axis of the valve core 30; the transition part 31 cooperates with the transition hole section 1301, and the sealing ring 40 is arranged on the transition part 31.

[0067] The valve further includes: a first rotating shaft 50 and a second rotating shaft 60, both of which are arranged on the valve body 10, and the valve core 30 is connected to the first rotating shaft 50 and the second rotating shaft 60, so as to support the valve core 30 through the first rotating shaft 50 and the second rotating shaft 60; an operating handle 70, which is connected to the first rotating shaft 50, so as to drive the valve core 30 to rotate relative to the valve body 10 through the first rotating shaft 50; wherein, the first rotating shaft 50 is provided with a first clamping portion 51, and the second rotating shaft 60 is provided with a second clamping portion 61, and the first clamping portion 51 and the second clamping portion 61 are both clamped on the valve body 10 to axially limit the first rotating shaft 50 and the second rotating shaft 60. Such a setting can drive the valve core 30 to rotate by rotating the operating handle 70, so as to control the on and off of the liquid outlet 130, and at the same time, the first rotating shaft 50 and the second rotating shaft 60 are limited by the first clamping portion 51 and the second clamping portion 61, so as to control the rotation angle of the valve core.

[0068] Specifically, Figure 5 As shown, the valve body 10 is provided with a first clamping groove 14 for cooperating with the first clamping portion 51, and the first clamping portion 51 is clamped in the first clamping groove 14; the first clamping groove 14 extends around the rotation axis of the valve core 30, so that when the first rotating shaft 50 rotates relative to the valve body 10, the first clamping portion 51 slides along the first clamping groove 14; and / or, the valve body 10 is provided with a second clamping groove 15 for cooperating with the second clamping portion 61, and the second clamping portion 61 is located in the second clamping groove 15; the second rotating shaft 60 is fixed to the valve body 10 by the cooperation between the second clamping portion 61 and the second clamping groove 15, and the valve core 30 is rotatably arranged relative to the second rotating shaft 60. This arrangement makes it easy for the operating handle 70 to control the rotation angle of the valve core 30 around the rotation axis. When the valve core 30 rotates 180° around the rotation axis, the flow rate of the liquid outlet 130 is maximum. The first clamping portion 51 cooperates with the second clamping groove 15 to prevent the valve core 30 from rotating beyond 180° around the rotation axis, thereby reducing the unloading efficiency.

[0069] In order to further increase the sealing performance of the valve body, the first rotating shaft 50 has a first step structure, and the valve body is provided with a first through hole for the first rotating shaft 50 to pass through. The first step structure is provided with a first seal 52, and the first seal 52 is arranged around the first rotating shaft 50, and the first seal 52 is arranged between the step end surface of the first step structure and the valve body constituting the first through hole; the second rotating shaft 60 has a second step structure, and the valve body is provided with a second through hole for the second rotating shaft 60 to pass through. The second step structure is provided with a second seal 62, and the second seal 62 is arranged around the second rotating shaft 60, and the second seal 62 is arranged between the step end surface of the second step structure and the valve body constituting the second through hole.

[0070] like Figure 6As shown, a clamping shaft section 53 is provided on the first rotating shaft 50, and a clamping protrusion is provided on the clamping shaft section 53. There are multiple clamping protrusions, and the multiple clamping protrusions are arranged at intervals around the axis of the clamping shaft section 53. A clamping hole 32 matching with the clamping shaft section 53 is provided on the valve core 30, and a clamping groove matching with the clamping protrusion is provided on the hole wall of the clamping hole 32. There are multiple clamping grooves, and the multiple clamping grooves are arranged around the hole center line of the clamping hole 32. The multiple clamping grooves are arranged one-to-one with the multiple clamping protrusions. At least a part of the clamping shaft section 53 is inserted into the clamping hole 32 so that the clamping protrusion and the clamping groove cooperate with each other, so that when the operating handle 70 is rotated, the clamping protrusion and the clamping groove are clamped with each other, so that the operating handle 70 drives the valve core 30 to rotate.

[0071] like Figure 3 As shown, the operating handle 70 includes a handle portion 71 and a driving portion 72, and the driving portion 72 is connected to the shaft portion of the first rotating shaft 50; a first limiting protrusion 720 is provided on the driving portion 72, and a second limiting protrusion 121 matching the first limiting protrusion 720 is provided on the mounting plate 12, so as to limit the rotation angle of the operating handle 70 through the cooperation between the first limiting protrusion 720 and the second limiting protrusion 121.

[0072] Specifically, the first limiting protrusion 720 is a first limiting protrusion protruding from the outer surface of the driving part 72, and the second limiting protrusion 121 is a second limiting protrusion protruding from the surface of the mounting plate 12, so as to limit the rotation angle of the operating handle 70 through the limiting action between the first limiting protrusion and the second limiting protrusion.

[0073] In the embodiment provided by the present invention, a first stop portion 122 and a second stop portion 123 are provided on the mounting plate 12, and a third stop portion 721 and a fourth stop portion 722 are provided on the driving portion 72. The first stop portion 122 cooperates with the third stop portion 721, and the second stop portion 123 cooperates with the fourth stop portion 722 to limit the rotation angle of the operating handle 70 within a predetermined range; the first limiting protrusion 720 is located between the third stop portion 721 and the fourth stop portion 722, and the second limiting protrusion 121 is located between the first stop portion 122 and the second stop portion 123, so that when the valve core 30 is switched from the closed position to the open position, the second limiting protrusion 121 rotates past the second stop portion 123 and abuts against the first limiting protrusion 720.

[0074] Specifically, the first stopper 122 includes a plurality of stopper ridges, the plurality of stopper ridges are arranged in parallel, the third stopper 721 is a first stopper end face for mutually stopping the first stopper 122; and / or, the second stopper 123 is a bent plate, the bent plate has a stopper plate face, and the fourth stopper 722 has a second stopper end face for mutually stopping the stopper plate face. The stopper ridges can also strengthen the strength of the mounting plate 12 and improve the service life of the valve body.

[0075] like Figure 7 As shown, the valve further includes a liquid outlet cover 80 for covering the liquid outlet of the liquid outlet portion 13, the liquid outlet cover 80 has a stopper end face 81, and the fourth stopper 722 has a third stopper end face that stops mutually with the stopper end face 81, so that when the valve core 30 is in a position where the third stopper end face is located for making the liquid outlet hole 130 in an off-circuit state, the first stopper 122 and the third stopper 721 stop mutually, and the stopper end face 81 and the third stopper end face stop mutually. This arrangement can prevent the operator from misoperating the operating handle 70, so that the liquid outlet cover 80 cannot be rotated in the locked state.

[0076] The operating handle 70 is provided with a first connection portion 73, and the liquid outlet cover 80 is provided with a second connection portion 82, so that the liquid outlet cover 80 is connected to the operating handle 70 through a connection piece connected between the first connection portion 73 and the second connection portion 82. In the specific use process, the connection piece can be removed from the liquid outlet cover 80, so that the liquid outlet cover 80 can be screwed off the valve body 10 to discharge liquid normally.

[0077] Preferably, the first connecting portion 73 is a first connecting hole, the second connecting portion 82 is a lug structure having a second connecting hole, and the connecting member is a connecting rope connected to both the first connecting hole and the second connecting hole. By passing at least part of the connecting rope through the connecting hole, the operating handle 70 is connected to the liquid outlet cover 80 to prevent the liquid outlet cover 80 from falling. In addition, the operating handle 70 can be positioned by the connecting rope so that the operating handle 70 is in a predetermined working position. In another embodiment provided by the present invention, the connecting member can also be a customs lock, so that the customs lock can be opened according to a set password to discharge liquid. Such a setting can also prevent theft. It should be noted here that the connecting member can also be other connecting members with connecting and / or locking functions.

[0078] In the embodiment provided by the present invention, there are multiple second connection parts 82, and the multiple second connection parts 82 are arranged at intervals along the circumference of the liquid outlet cover 80. When the liquid outlet cover 80 is rotated to any angle, the operating handle 70 can be connected to the liquid outlet cover.

[0079] like Figure 8 As shown, the present invention also provides a turnover box, including a base 2 and a valve arranged on the base 2, the valve is used to connect with the liquid bag so that the liquid in the liquid bag can flow out through the valve, and the valve is the valve of the above embodiment.

[0080] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0081] According to the valve provided by the present invention, the valve includes a valve body 10 and a valve base 20, the valve body 10 has a liquid inlet portion 11, the liquid inlet portion 11 has a liquid inlet channel 110 for liquid to enter, the valve base 20 is arranged on the liquid inlet portion 11, the valve base 20 is used to be connected with a liquid bag, and the liquid outlet of the liquid bag is communicated with the liquid inlet channel 110, so that the liquid in the liquid bag can flow into the liquid inlet channel 110 of the liquid inlet portion 11; wherein the liquid inlet portion 11 includes a supporting portion 111, and the supporting portion 111 is located on the side of the cavity of the valve base 20 close to the liquid bag; a liquid inlet hole 112 is arranged on the supporting portion 111, and the liquid inlet hole 112 extends to the inner wall surface and the outer wall surface of the liquid inlet portion 11, so that the liquid between the valve base 20 and the liquid inlet portion 11 can enter the liquid inlet channel 110 through the liquid inlet hole 112. Preferably, the valve base 20 is detachably mounted on the liquid inlet portion 11, which can facilitate the disassembly and assembly of the valve base 20, the replacement of the valve base 20 and the maintenance of the valve body 10. In specific use, the liquid bag is connected to the valve base 20 to allow the liquid in the liquid bag to flow out through the liquid inlet channel 110. By providing the liquid inlet hole 112 on the liquid inlet portion 11, the liquid in the liquid bag can flow into the liquid inlet channel 110 through the liquid inlet hole 112, thereby increasing the outflow speed of the liquid. In addition, since residual liquid often remains at the bottom of the liquid bag, by utilizing the valve of the present invention, the residual liquid in the liquid bag can flow into the liquid inlet channel 110 through the liquid inlet hole 112, so that the liquid in the liquid bag can completely flow into the liquid inlet channel 110. At the same time, in order to prevent the liquid bag from being adsorbed in the liquid inlet channel 110 due to pressure when the liquid bag is draining, a support portion 111 is provided to support the liquid bag. The above-mentioned valve is installed on the liquid turnover box, which greatly improves the unloading efficiency of the liquid turnover box and solves the problem of low unloading efficiency of the liquid turnover box in the prior art.

[0082] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A valve, characterized in that: include: A valve body, wherein the valve body has a liquid inlet portion, and the liquid inlet portion has a liquid inlet channel for liquid to enter; A valve base, which is arranged on the liquid inlet portion and is used to be connected to the liquid bag, and the liquid outlet of the liquid bag is connected to the liquid inlet channel; The liquid inlet portion includes a support portion, which is located on the side of the cavity of the valve base close to the liquid bag; a liquid inlet hole is provided on the support portion, and the liquid inlet hole extends to the inner wall surface and the outer wall surface of the liquid inlet portion; The valve body comprises a mounting plate and a liquid outlet portion, wherein the liquid inlet portion and the liquid outlet portion are arranged on opposite sides of the mounting plate, and the liquid outlet portion (having a liquid outlet hole, the liquid outlet hole is connected with the liquid inlet hole; a third clamping portion is arranged on the mounting plate, and the mounting plate is connected to the mounting base through the third clamping portion; The valve further includes: a valve core, which is rotatably mounted on the liquid outlet portion, at least a portion of which is located in the liquid outlet hole, so as to control the opening and closing of the liquid outlet hole by rotating the valve core; a first rotating shaft and a second rotating shaft, both of which are penetrated through the valve body; an operating handle, which is connected to the first rotating shaft, so as to drive the valve core to rotate relative to the valve body through the first rotating shaft; The operating handle includes a handle portion and a driving portion, wherein the driving portion is connected to the shaft portion of the first rotating shaft; a first limiting protrusion is provided on the driving portion, and a second limiting protrusion matched with the first limiting protrusion is provided on the mounting plate, so as to limit the rotation angle of the operating handle through the cooperation between the first limiting protrusion and the second limiting protrusion; A first stop portion and a second stop portion are provided on the mounting plate, and a third stop portion and a fourth stop portion are provided on the driving portion. The first stop portion cooperates with the third stop portion, and the second stop portion cooperates with the fourth stop portion to limit the rotation angle of the operating handle within a predetermined range; the first limiting protrusion is located between the third stop portion and the fourth stop portion, and the second limiting protrusion is located between the first stop portion and the second stop portion, so that when the valve core is switched from a closed position to an open position, the second limiting protrusion rotates past the second stop portion and abuts against the first limiting protrusion.

2. The valve according to claim 1, characterized in that There are multiple liquid inlet holes, and the multiple liquid inlet holes are arranged at intervals along the circumference of the liquid inlet part.

3. The valve according to claim 1, characterized in that There are four liquid inlet holes, and the four liquid inlet holes are evenly distributed along the circumference of the liquid inlet part.

4. The valve according to claim 1, characterized in that The liquid inlet portion is tubular, the liquid inlet hole is a cylindrical hole, and the center line of the cylindrical hole is arranged to intersect with the axis of the liquid inlet portion.

5. The valve according to claim 1, characterized in that The liquid inlet part is tubular, and the valve base is sleeved on the liquid inlet part; a first clamping part is provided on the liquid inlet part, and a second clamping part for cooperating with the first clamping part is provided on the valve base, so that the valve base can be locked on the liquid inlet part through the cooperation between the first clamping part and the second clamping part.

6. The valve according to claim 4, characterized in that The valve base is provided with a sleeve hole for being sleeved on the liquid inlet portion, and the sleeve hole and the tube wall of the liquid inlet portion are in interference fit.

7. The valve according to claim 5, characterized in that The first clamping part is a clamping protrusion protruding from the outer peripheral surface of the liquid inlet part, and the second clamping part is a clamping end surface, so that after the valve base is sleeved on the liquid inlet part, the clamping protrusion is clamped on the clamping end surface.

8. The valve according to claim 7, characterized in that There are multiple clamping protrusions, which are arranged at intervals along the circumference of the liquid inlet; the clamping end face is annular, which is arranged around the liquid inlet, and the multiple clamping protrusions are all clamped on the clamping end face.

9. The valve according to claim 5, characterized in that The first clamping part is a clamping protrusion protruding from the outer peripheral surface of the liquid inlet part, and the second clamping part is a clamping groove, so that after the valve base is sleeved on the liquid inlet part, the clamping protrusion is clamped in the clamping groove.

10. The valve according to claim 7, characterized in that The liquid inlet is provided with a plurality of elastic holes which are arranged at intervals along the circumference of the liquid inlet so that the liquid inlet is deformed under the action of the plurality of elastic holes when subjected to external force; the clamping protrusion is arranged between two adjacent elastic holes.

11. The valve according to claim 10, characterized in that The liquid inlet portion is a tube body, the elastic hole is a strip hole, and the length direction of the strip hole is parallel to the axial direction of the liquid inlet portion.

12. A valve according to any one of claims 1 to 11, characterised in that A sealing protrusion is arranged on the liquid inlet portion, and the sealing protrusion protrudes from the outer peripheral surface of the liquid inlet portion so that the sealing protrusion abuts against the inner wall surface of the valve base.

13. The valve according to claim 12, characterized in that The sealing protrusion is an annular protrusion, and the annular protrusion is arranged around the outer peripheral surface of the liquid inlet portion.

14. The valve according to claim 12, characterized in that There are multiple sealing protrusions, and the multiple sealing protrusions are arranged at intervals along the extending direction of the liquid inlet portion.

15. The valve according to claim 1, characterized in that The valve also includes: A sealing ring is sandwiched between the valve core and the inner wall of the liquid outlet hole to seal the valve core and the inner wall of the liquid outlet hole through the sealing ring; When the valve core is located at a position for placing the liquid outlet in an off-circuit state, the sealing ring is located on a side of the rotation axis of the valve core away from the liquid inlet portion.

16. The valve according to claim 15, characterized in that The liquid outlet hole has a transition hole section, and the inner wall surface of the transition hole section is formed by rotating a first arc line around the hole center line of the liquid outlet hole; the valve core has a transition part, and the outer wall surface of the transition part is formed by rotating a second arc line around the axis of the valve core; the transition part cooperates with the transition hole section, and the sealing ring is arranged on the transition part.

17. The valve according to claim 15, characterized in that The valve core is connected to both the first rotating shaft and the second rotating shaft so as to support the valve core through the first rotating shaft and the second rotating shaft; Among them, a first clamping portion is arranged on the first rotating shaft, and a second clamping portion is arranged on the second rotating shaft. Both the first clamping portion and the second clamping portion are clamped on the valve body to axially limit the first rotating shaft and the second rotating shaft.

18. The valve according to claim 17, characterized in that The valve body is provided with a first clamping groove for cooperating with the first clamping portion, and the first clamping portion is clamped in the first clamping groove; the first clamping groove extends around the rotation axis of the valve core, so that when the first rotating shaft rotates relative to the valve body, the first clamping portion slides along the first clamping groove; and / or, The valve body is provided with a second clamping groove for cooperating with the second clamping part, and the second clamping part is located in the second clamping groove; the second rotating shaft is fixed to the valve body through the cooperation between the second clamping part and the second clamping groove, and the valve core is rotatably arranged relative to the second rotating shaft.

19. The valve according to claim 1, characterized in that The first stop portion includes a plurality of stop ridges, which are arranged in parallel, and the third stop portion is a first stop end face for stopping the first stop portion; and / or the second stop portion is a bent plate, the bent plate has a stop plate surface, and the fourth stop portion has a second stop end face for stopping the stop plate surface.

20. The valve according to claim 1, characterized in that The valve body also includes a liquid outlet end cover for covering the liquid outlet of the liquid outlet part, the liquid outlet end cover has a stop end face, and the fourth stop part has a third stop end face that stops mutually with the stop end face, so that when the third stop end face is located at a position for putting the liquid outlet hole in an off-circuit state, the first stop part and the third stop part stop mutually, and the stop end face and the third stop end face stop mutually.

21. The valve according to claim 20, characterized in that The operating handle is provided with a first connecting portion, and the liquid outlet end cover is provided with a second connecting portion, so that the liquid outlet end cover is connected to the operating handle through a connecting piece connected between the first connecting portion and the second connecting portion.

22. The valve according to claim 21, characterized in that The first connecting portion is a first connecting hole, the second connecting portion is a lug structure having a second connecting hole, and the connecting member is a connecting rope connected to both the first connecting hole and the second connecting hole.

23. The valve according to claim 21, characterized in that There are multiple second connection parts, and the multiple second connection parts are arranged at intervals along the circumference of the liquid outlet end cover.

24. A turnover box, comprising a base and a valve disposed on the base, the valve being used to connect with a fluid bag so that the liquid in the fluid bag can flow out through the valve, characterized in that: The valve is a valve according to any one of claims 1 to 23.

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