A nozzle

Abstract

The present invention provides a nozzle, comprising a tube body, a through hole is provided at the bottom of the tube body, or a mounting hole is provided at the bottom of the tube body, and a fixed valve plate is provided in the mounting hole, the fixed valve plate is circumferentially sealed and connected to the mounting hole, a second valve hole is provided on the fixed valve plate, wherein the through hole is consistent with the second valve hole in shape, size and number; a rotary valve plate, the rotary valve plate is arranged on the outside of the tube body, and is rotatably sealed and connected to the bottom of the tube body, the rotary valve plate is provided with a first valve hole corresponding to the through hole and a wrench protruding from the outer edge of the rotary valve plate, when the rotary valve plate rotates relative to the bottom of the tube body, the through hole overlaps with the first valve hole and forms an opening for circulating liquid, or the through hole is staggered with the first valve hole and is sealed. The nozzle according to the embodiment of the present invention can increase the drainage flow cross-sectional area and shorten the drainage time during the drainage of a photovoltaic slicer.

Description

Technical Field

[0001] The invention relates to a nozzle, in particular to a cutting liquid nozzle used for a photovoltaic slicer. Background Art

[0002] The cutting liquid nozzle of the photovoltaic slicer supplies cutting coolant during the process of cutting silicon rods. After each cut, the liquid needs to be drained and disassembled. The amount of liquid required to be drained for each rod is about 4L. A cutting liquid nozzle is set on both sides of the silicon rod. The existing cutting liquid nozzle generally uses a rubber ball installed at the bottom of the spring rod end, and the bottom is in contact and sealed with the circular hole of the cutting liquid nozzle. The rubber ball is concentric with the hole, and the pull rod is positioned on the cutting liquid nozzle through two orifice plates. After the silicon rod is cut and needs to be drained, the upper hand ball of the pressure rod is manually pulled up, the spring is compressed, and a gap is generated between the rubber ball and the circular hole. The residual cutting liquid is discharged through the gap and the circular hole. During the discharge process, the hand is always in the lifting state. After the cutting liquid is discharged, the hand is released, the spring is reset, and the rubber ball is in contact and sealed with the circular hole. When there is a deviation in the movable gap of the pressure rod and the alignment of the rubber ball and the circular hole, dripping occurs. During the discharge of the cutting liquid, the personnel need to keep lifting and pulling. The lifting time is long and the pulling force is large, which wastes the working time and physical energy of the employees. Summary of the invention

[0003] In view of this, the present invention provides a nozzle to solve the problem of slow discharge of cutting liquid from the cutting liquid nozzle of a photovoltaic slicer, which wastes manpower.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] The nozzle according to the first embodiment of the present invention comprises:

[0006] A tube body, wherein a through hole is provided at the bottom of the tube body, or a mounting hole is provided at the bottom of the tube body, and a fixed valve plate is provided in the mounting hole, the fixed valve plate is circumferentially sealed and connected to the mounting hole, and a second valve hole is provided on the fixed valve plate, wherein the through hole is consistent with the second valve hole in shape, size and number;

[0007] A rotary valve plate, wherein the rotary valve plate is arranged on the outer side of the tube body and is rotatably sealed and connected to the bottom of the tube body. The rotary valve plate is provided with a first valve hole corresponding to the through hole and a wrench protruding from the outer edge of the rotary valve plate. When the rotary valve plate rotates relative to the bottom of the tube body, the first valve hole overlaps with the through hole or the second valve hole to form an opening for circulating liquid, or the first valve hole is staggered with the through hole or the second valve hole and is sealed.

[0008] Preferably, a shaft hole is opened on the tube body or the fixed valve plate, a shaft is provided on the rotary valve plate, the shaft passes through the shaft hole, a spring is sleeved axially on the shaft, one end of the spring is fixed to the free end of the shaft, and the other end is abutted against the tube body or the fixed valve plate.

[0009] Preferably, the rotating shaft is fixedly connected to the spring by a bolt fastener.

[0010] The bolt fastener comprises:

[0011] A screw, wherein the screw is provided with an external thread, and an internal thread matching the external thread is provided inside the free end of the rotating shaft;

[0012] A gasket is arranged at the end of the rotating shaft and is fastened to the free end of the rotating shaft by the screw.

[0013] Preferably, the nozzle further comprises:

[0014] A valve closing assembly, the valve closing assembly comprising a tension spring, one end of the tension spring being connected to the free end of the wrench, and the other end being fixedly connected to the tube body, the valve closing assembly driving the wrench to rotate to one side so that the first valve hole is staggered with the through hole or the second valve hole and is sealed by the bottom of the tube body or the fixed valve plate and the rotary valve plate respectively;

[0015] A valve opening assembly, the valve opening assembly comprising a hook, a first end of the hook being rotatably connected to the tube body, and a second end forming a hook body, the hook body being used to fix the wrench when the wrench rotates to one side thereof, so that the first valve hole overlaps with the through hole or the second valve hole and forms an opening for circulating liquid.

[0016] Preferably, the valve opening assembly further comprises:

[0017] A coil spring is fixed on the tube body and connected to one end of the hook.

[0018] Preferably, a polytetrafluoroethylene plate is attached to a side surface of the rotary valve plate close to the bottom of the tube body.

[0019] Preferably, the nozzle further comprises:

[0020] An extension plate is in contact with the upper end surface of the hook, and when the extension plate applies pressure to the hook, the hook rotates downward.

[0021] Preferably, the upper end surface of the hook body of the hook is provided with a chamfer to facilitate the wrench to slide toward the first end of the hook.

[0022] Preferably, a left limit block and a right limit block are respectively provided on both sides of the wrench, the left limit block is used to limit the wrench from continuing to rotate when the wrench closes the valve, and the right limit block is used to limit the wrench from continuing to rotate when the wrench opens the valve.

[0023] Preferably, the through hole, the first valve hole and the second valve hole are arranged in a fan shape or a circle.

[0024] The above technical solution of the present invention has at least one of the following beneficial effects:

[0025] The nozzle according to the embodiment of the present invention can discharge the liquid by opening the valve hole of the nozzle without the need for manual operation during the discharge of the photovoltaic slicer, thereby improving production efficiency and preventing forgetting to close the nozzle before cutting by the photovoltaic slicer, thereby avoiding losses caused by manual misoperation. The opening and closing of the valve hole of the nozzle requires little operating force, is tightly sealed, has no dripping phenomenon, has a large discharge flow cross-sectional area, and has a short discharge time. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the structure of a nozzle according to an embodiment of the present invention;

[0027] Figure 2 Schematic diagram of the relative positions of the fixed valve plate and the rotary valve plate during liquid discharge in an embodiment of the present invention;

[0028] Figure 3 Schematic diagram of the relative positions of the fixed valve plate and the rotary valve plate during liquid discharge in an embodiment of the present invention;

[0029] Figure 4 Schematic diagram of the nozzle shaft structure according to an embodiment of the present invention.

[0030] Reference numerals:

[0031] Tube body 10; left limit block 11; right limit block 12; fixing hook 13;

[0032] Rotary valve plate 20; first valve hole 21; wrench 22; rotating shaft 23; spring 24; screw 25; gasket 26; PTFE plate 27;

[0033] Fixed valve plate 30; second valve hole 31;

[0034] Extension plate 40;

[0035] Valve closing assembly 50; tension spring 51;

[0036] Valve opening assembly 60; hook 61; coil spring 62. DETAILED DESCRIPTION

[0037] The following first describes in detail the nozzle according to an embodiment of the first aspect of the present invention with reference to the accompanying drawings.

[0038] It should be noted that, in the embodiments of the present application, a through hole can be directly provided at the bottom of the tube body, or a fixed valve plate can be provided on the tube body, the fixed valve plate is installed in the mounting hole of the tube body, and the fixed valve plate is circumferentially sealed and connected with the mounting hole to prevent the liquid in the tube body from flowing out through the mounting hole, and a second valve hole is provided on the fixed valve plate. The through hole and the second valve hole are two completely identical holes, for example, the size, shape, number and interval between the holes are completely consistent, so that the through hole and the second valve hole can cooperate with the first valve hole on the rotary valve plate to discharge the liquid in the tube body, or prevent the liquid from flowing out.

[0039] The following is an example in which a fixed valve plate is provided on the tube body, the fixed valve plate is installed in the mounting hole of the tube body, the fixed valve plate is circumferentially sealed and connected to the mounting hole, and a second valve hole is provided on the fixed valve plate, and the discharge and prohibition of discharge of liquid in the nozzle of the present application are described in detail.

[0040] like Figures 1 to 4 As shown, the nozzle according to the embodiment of the present invention includes a nozzle body 10 and a rotary valve plate 20 .

[0041] Specifically, a mounting hole is provided at the bottom of the tube body 10, and the fixed valve plate 30 is sealed on the mounting hole, wherein the fixed valve plate 30 can be fixed on the tube body 10 by spot welding. A second valve hole 31 is opened on the fixed valve plate 30. The rotary valve plate 20 is arranged on the outer side of the fixed valve plate 30, and is rotatably sealed and connected with the fixed valve plate 30. The first valve hole 21 on the rotary valve plate 20 is correspondingly arranged with the second valve hole 31 on the fixed valve plate 30. When the rotary valve plate 20 rotates relative to the fixed valve plate 30, the first valve hole 21 overlaps with the second valve hole 31 and forms an opening, or the first valve hole 21 and the second valve hole 31 are staggered and sealed with each other. The first valve hole 21 and the second valve hole 31 can be rotated relative to each other by rotating the wrench 22, and when the two valve holes overlap, the valve hole is opened to facilitate the circulation of the liquid. When the two valve holes are completely staggered, that is, there is no intersection between the holes, the valve hole is closed at this time, and the liquid circulation is prohibited.

[0042] According to an embodiment of the present application, a shaft hole may be opened on the fixed valve plate 30, and a shaft 23 may be welded to the rotary valve plate 20. The shaft 23 passes through the shaft hole of the fixed valve plate 10, and a spring 24 is sleeved on the axial direction of the shaft 23. One end of the spring 24 is fixed to the free end of the shaft 23, and the other end is abutted on the fixed valve plate 30, and then the shaft 23 and the spring 24 are fixedly connected by bolt fasteners. The thrust of the spring 24 can effectively fit the fixed valve plate 30 and the rotary valve plate 20, thereby enhancing the sealing performance.

[0043] Preferably, the rotating shaft 23 and the spring 24 are fixedly connected by a bolt fastener, and the bolt fastener includes a screw 25 and a washer 26. The screw 25 is provided with an external thread, and the free end of the rotating shaft 23 is provided with an internal thread matching the external thread. The washer 26 is arranged at the end of the rotating shaft 23 and is fastened to the free end of the rotating shaft 23 by the screw 25. The bolt fastener can firmly lock the rotating shaft 23 and the spring 24.

[0044] According to an embodiment of the present application, a mounting hole is provided at the bottom of the tube body 10, and a fixed valve plate 30 corresponding to the rotary valve plate 20 is covered on the mounting hole. The fixed valve plate 30 is provided with a second valve hole 31 consistent with the through hole.

[0045] According to one embodiment of the present application, the nozzle further includes a valve closing assembly 50 and a valve opening assembly 60. One end of the valve closing assembly 50 is connected to the free end of the wrench 22, and the other end is fixedly connected to the pipe body 10. The valve closing assembly 50 drives the wrench 22 to rotate to one side so that the first valve hole 21 and the second valve hole 31 are staggered and sealed by the bottom of the rotary valve plate 20 and the fixed valve plate 30 respectively. The valve opening assembly 60 includes a hook 61, the first end of the hook 61 is rotatably connected to the pipe body 10, and the second end forms a hook body, which is used to fix the wrench 22 when the wrench 22 rotates to one side thereof, so that the first valve hole 21 overlaps with the second valve hole 31 and forms an opening.

[0046] The valve closing assembly 50 is used to pull the wrench 22 to the left. Preferably, the valve closing assembly 50 may include a tension spring 51, one end of which is connected to the wrench 22, and the other end of which may be fixed to the fixing hook 13 at the bottom of the nozzle body 10. When the tension spring 51 is in the reset state, the tension spring 51 drives the wrench 22 of the rotary valve plate 20 to rotate clockwise, that is, the wrench 22 moves to the left. At this time, Figure 3 As shown, the first valve hole 21 of the rotary valve plate 20 and the second valve hole 31 of the fixed valve plate 30 are staggered to form a sealed state, and the nozzle discharge state is a closed state.

[0047] The other side of the wrench 22 of the rotary valve plate 20 is the hook 61 of the valve opening assembly 60. When the wrench 22 is pulled to the upper end surface of the hook 61 and pressure is applied downward, the hook 61 is squeezed by the wrench 22 and rotates downward, and the wrench 22 slides into the hook body and fixes the wrench 22. At this time, the rotary valve plate 20 is locked in the open position, and the valve hole of the rotary valve plate 20 overlaps with the valve hole of the fixed valve plate 30 to form an opening, such as Figure 2 As shown, the first valve hole 21 of the rotary valve plate 20 can overlap with the second valve hole 31 of the fixed valve plate 30 to form an opening, and the nozzle discharge state is open, that is, continuous discharge without manual operation.

[0048] Preferably, the valve opening assembly 60 further includes: a coil spring 62, which is fixed on the tube body 10 and connected to one end of the hook 61. When the hook 61 rotates, the coil spring 62 is driven to rotate counterclockwise, and when the wrench 22 is stuck in the hook body, the coil spring 62 is reset, driving the hook body to reset, so that the wrench 22 is firmly stuck in the hook body, and at this time, the valve is opened to discharge liquid.

[0049] The shape, quantity and distribution of the through hole or the first valve hole 21 and the second valve hole 31 of the present application can be set to fan-shaped or circular according to actual conditions. The size, shape and position of the through hole or the second valve hole 31 and the first valve hole 21 of the rotary valve plate 20 and the second valve hole 31 of the fixed valve plate 30 can be consistent. For example, four fan-shaped holes are evenly distributed on the rotary valve plate 20 and the fixed valve plate 30, and the area between the fan-shaped holes is slightly larger than the area of ​​the fan-shaped trapezoidal holes. This structure and quantity can ensure that the valve holes can be sealed with each other and increase the discharge volume as much as possible.

[0050] Preferably, a PTFE plate 27 is attached to one side of the rotary valve plate 20 close to the fixed valve plate 30. The PTFE plate 27 has a valve hole that is consistent in size, shape and position with the first valve hole 21 of the rotary valve plate 20, and a rotating shaft hole is opened in the center of the PTFE plate 27. The PTFE plate 27 is bonded to the rotary valve plate 20 with glue. The PTFE plate 27 has the advantages of corrosion resistance, good electrical insulation, low friction coefficient, etc., and plays a role in sealing and reducing friction.

[0051] According to an embodiment of the present application, the upper end surface of the hook body of the hook 61 is provided with a chamfer to facilitate the wrench 22 to slide toward the first end of the hook 61. This allows the wrench 22 to smoothly slide over the upper end surface of the hook body and engage in the hook body.

[0052] According to an embodiment of the present application, the nozzle further includes an extension plate 40, which abuts against the upper end surface of the hook 61, and when the extension plate 40 applies pressure to the hook 61, the hook 61 rotates downward. The extension plate 40 can be connected to the cutting chamber door of the photovoltaic slicer. If the employee forgets to close the rotary valve plate 20, when preparing to cut the silicon rod, the cutting chamber door of the photovoltaic slicer needs to be closed, and the cutting chamber door drives the extension plate 40 to descend, and the extension plate 40 presses down the hook 61, so that the wrench 22 of the rotary valve plate 20 is separated from the hook 61. Under the action of the tension spring 51, the rotary valve plate 20 reaches a closed state, ensuring that the nozzle discharge state is closed when the slicer cuts the silicon rod, thereby ensuring safe production.

[0053] Preferably, a left limit block 11 and a right limit block 12 are respectively provided on both sides of the wrench 22. The left limit block 11 is used to limit the wrench 22 from continuing to rotate when the wrench 22 closes the valve, and the right limit block 12 is used to limit the wrench 22 from continuing to rotate when the wrench 22 opens the valve. The left limit block 11 and the right limit block 12 can prevent the wrench 22 from excessively rotating and affecting the closing or opening of the valve hole.

[0054] Since the through hole and the second valve hole in the present application are completely identical holes, and the cooperation between the through hole and the first valve hole to achieve the prohibition of liquid discharge from the tube body, or the process of discharging liquid is also completely identical, therefore, the cooperation process between the through hole and the first valve hole can refer to the cooperation process between the first valve hole and the second valve hole in the above embodiment, and will not be repeated here.

[0055] The nozzle according to the embodiment of the present invention can discharge the liquid by opening the valve hole of the nozzle without the need for manual operation during the discharge of the photovoltaic slicer, thereby improving production efficiency. The nozzle has a fool-proof measure to prevent the user from forgetting to close the nozzle before cutting by the photovoltaic slicer, thereby avoiding losses caused by manual misoperation. The opening and closing of the valve hole of the nozzle requires little operating force, is tightly sealed, and does not cause dripping. When multiple valve holes are coordinated, the drainage cross-sectional area is large and the drainage time is short.

[0056] Other structures and operations of the water pipe according to the embodiment of the present invention are understandable and easy to implement for those skilled in the art, and thus will not be described in detail.

[0057] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A nozzle, characterized in that: include: A tube body, wherein a mounting hole is provided at the bottom of the tube body, and a fixed valve plate is provided in the mounting hole, the fixed valve plate is circumferentially sealed and connected to the mounting hole, and a second valve hole is provided on the fixed valve plate; A rotary valve plate, the rotary valve plate is arranged on the outside of the tube body and is rotatably sealed with the bottom of the tube body, the rotary valve plate is provided with a first valve hole corresponding to the second valve hole and a wrench protruding from the outer edge of the rotary valve plate, when the rotary valve plate rotates relative to the bottom of the tube body, the first valve hole overlaps with the second valve hole and forms an opening for circulating liquid, or the first valve hole and the second valve hole are staggered and sealed, and a PTFE plate is attached to a side of the rotary valve plate close to the bottom of the tube body; A valve closing assembly, the valve closing assembly comprising a tension spring, one end of the tension spring being connected to the free end of the wrench, and the other end being fixedly connected to the tube body, the valve closing assembly driving the wrench to rotate to one side so that the first valve hole and the second valve hole are staggered and respectively sealed by the fixed valve plate and the rotary valve plate; A valve opening assembly, the valve opening assembly comprising a hook, a first end of the hook being rotatably connected to the tube body, and a second end forming a hook body, the hook body being used to fix the wrench when the wrench rotates to one side thereof, so that the first valve hole overlaps with the second valve hole and forms an opening for circulating liquid.

2. The nozzle according to claim 1, characterized in that A shaft hole is opened on the fixed valve plate, and a shaft is arranged on the rotary valve plate. The shaft passes through the shaft hole, and a spring is sleeved on the axial direction of the shaft. One end of the spring is fixed to the free end of the shaft, and the other end is abutted against the fixed valve plate.

3. The nozzle according to claim 2, characterized in that The rotating shaft is fixedly connected to the spring by bolt fasteners. The bolt fastener comprises: A screw, wherein the screw is provided with an external thread, and an internal thread matching the external thread is provided inside the free end of the rotating shaft; A gasket is arranged at the end of the rotating shaft and is fastened to the free end of the rotating shaft by the screw.

4. The nozzle according to claim 1, characterized in that The valve opening assembly also includes: A coil spring is fixed on the tube body and connected to one end of the hook.

5. The nozzle according to claim 1, characterized in that Also includes: An extension plate is in contact with the upper end surface of the hook, and when the extension plate applies pressure to the hook, the hook rotates downward.

6. The nozzle according to claim 1, characterized in that The upper end surface of the hook body of the hook is provided with a chamfer for facilitating the sliding of the wrench toward the first end of the hook.

7. The nozzle according to claim 1, characterized in that A left limit block and a right limit block are respectively provided on both sides of the wrench. The left limit block is used to limit the wrench from continuing to rotate when the wrench closes the valve, and the right limit block is used to limit the wrench from continuing to rotate when the wrench opens the valve.

8. The nozzle according to any one of claims 1 to 7, characterized in that: The first valve hole and the second valve hole are configured to be fan-shaped or circular.

9. A nozzle, characterized in that: include: A tube body, wherein a through hole is provided at the bottom of the tube body; A rotary valve plate, the rotary valve plate is arranged on the outside of the tube body and is rotatably sealed and connected to the bottom of the tube body. The rotary valve plate is provided with a first valve hole corresponding to the through hole and a wrench protruding from the outer edge of the rotary valve plate. When the rotary valve plate rotates relative to the bottom of the tube body, the first valve hole overlaps with the through hole and forms an opening for circulating liquid, or the first valve hole is staggered with the through hole and is sealed. A PTFE plate is attached to a side of the rotary valve plate close to the bottom of the tube body; A valve closing assembly, the valve closing assembly comprising a tension spring, one end of the tension spring being connected to the free end of the wrench, and the other end being fixedly connected to the tube body, the valve closing assembly driving the wrench to rotate to one side so that the first valve hole is staggered with the through hole and respectively sealed by the bottom of the tube body and the rotary valve plate; A valve opening assembly, the valve opening assembly comprising a hook, a first end of the hook being rotatably connected to the tube body, and a second end forming a hook body, the hook body being used to fix the wrench when the wrench rotates to one side thereof, so that the first valve hole overlaps with the through hole and forms an opening for circulating liquid.

10. The nozzle according to claim 9, characterized in that A shaft hole is opened on the tube body, a shaft is arranged on the rotary valve plate, the shaft passes through the shaft hole, a spring is sleeved on the axial direction of the shaft, one end of the spring is fixed to the free end of the shaft, and the other end is stopped on the tube body.

11. The nozzle according to claim 10, characterized in that The rotating shaft is fixedly connected to the spring by bolt fasteners. The bolt fastener comprises: A screw, wherein the screw is provided with an external thread, and an internal thread matching the external thread is provided inside the free end of the rotating shaft; A gasket is arranged at the end of the rotating shaft and is fastened to the free end of the rotating shaft by the screw.

12. The nozzle according to claim 11, characterized in that The valve opening assembly also includes: A coil spring is fixed on the tube body and connected to one end of the hook.

13. The nozzle according to claim 11, characterized in that Also includes: An extension plate is in contact with the upper end surface of the hook, and when the extension plate applies pressure to the hook, the hook rotates downward.

14. The nozzle according to claim 11, characterized in that The upper end surface of the hook body of the hook is provided with a chamfer for facilitating the sliding of the wrench toward the first end of the hook.

15. The nozzle according to claim 11, characterized in that A left limit block and a right limit block are respectively provided on both sides of the wrench. The left limit block is used to limit the wrench from continuing to rotate when the wrench closes the valve, and the right limit block is used to limit the wrench from continuing to rotate when the wrench opens the valve.

16. The nozzle according to any one of claims 9 to 15, characterized in that The through hole and the first valve hole are arranged in a fan shape or a circle.

Images