Non-return device for guiding silane raw materials out of storage tank through diaphragm pump

Abstract

The utility model discloses a non-return device for guiding silane raw materials out of a storage tank through a diaphragm pump, which comprises the diaphragm pump and an air outlet pipe fixed on one side of the diaphragm pump. The dismounting assembly comprises a non-return frame, a mounting ring, a fixing pipe, springs and clamping columns, the non-return frame is fixed to one side of the air outlet pipe, the mounting ring is fixed in the non-return frame, the fixing pipe is located in the middle of the mounting ring, the two springs are fixed to the two ends of the fixing pipe, and the two clamping columns are fixed to one ends of the corresponding springs; fixing holes are formed in the upper side and the lower side of the interior of the mounting ring, the tail ends of the two clamping columns are clamped into the fixing holes, two square grooves are formed in the outer surface of the fixing pipe, connecting blocks are fixed to the outer surfaces of the springs and penetrate through the square grooves, and movable plates are rotationally installed on the two sides of the outer surface of the fixing pipe. The non-return device has the advantages that the aged movable plate can be independently replaced, and the whole non-return device does not need to be replaced, so that the maintenance and replacement cost can be obviously reduced.

Description

Technical Field

[0001] This utility model relates to the field of check valve technology, and in particular to a check valve for discharging silane feedstock from a storage tank via a diaphragm pump. Background Art

[0002] A check valve is a device that prevents fluid from flowing backwards in a piping system. In the process of silane feedstock being pumped from a storage tank through a diaphragm pump, the check valve ensures that the fluid flows in only one direction, preventing backflow. This device is typically located at the pump outlet to prevent fluid in the pipeline from flowing back into the storage tank due to gravity or other reasons when the pump stops operating.

[0003] A search revealed Chinese patent publication number CN212455939U, which discloses a snap-fit ​​check valve flue connection structure. The structure includes a check valve assembly, an adapter assembly, and a flue. One end of the flue is connected to the adapter assembly. The structure also includes a latching assembly, which is mounted on and rotatably connected to the adapter assembly. The check valve assembly has a latching groove at a corresponding position to the latching assembly. The latching groove engages with the latching assembly to form a locked position and an open position. This design allows for the rapid and repeated assembly of the check valve.

[0004] The aforementioned check device is prone to aging of its internal moving plate after long-term use, which affects the check-off effect and requires the replacement of the entire check device. Since the external parts of the check device are not damaged, the entire device needs to be replaced only because the internal moving plate is worn out. This leads to unnecessary costs. Replacing the entire check device means that the external parts that could still be used are discarded, resulting in a waste of resources. Therefore, it is necessary to provide a check device with a removable and replaceable internal moving plate to reduce resource waste. Utility Model Content

[0005] The purpose of this invention is to provide a check device for discharging silane raw materials from a storage tank via a diaphragm pump, in order to solve the problem mentioned in the background art, where the internal moving plate of the existing check device is prone to aging after long-term use, affecting the check effect and requiring the replacement of the entire check device. Since the external of the check device is not damaged, only the internal moving plate is aged, requiring the replacement of the entire device, which leads to unnecessary cost expenditures. Replacing the entire check device means that the external parts that could continue to be used are discarded, resulting in a waste of resources.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a check valve device for discharging silane feedstock from a storage tank via a diaphragm pump, comprising:

[0008] A diaphragm pump and an outlet pipe, wherein the outlet pipe is fixed to one side of the diaphragm pump;

[0009] The disassembly assembly includes a check frame, a mounting ring, a fixing tube, springs, and locking pins. The check frame is fixed to one side of the air outlet pipe, the mounting ring is fixed inside the check frame, the fixing tube is located in the middle of the mounting ring, two springs are fixed to both ends of the fixing tube, and two locking pins are fixed to one end of the corresponding spring.

[0010] Furthermore, a base is fixed to the lower surface of the diaphragm pump, and an air inlet pipe is fixed to the lower end of the diaphragm pump.

[0011] Furthermore, the mounting ring has fixing holes on its upper and lower sides, and the ends of the two locking pins are inserted into the fixing holes.

[0012] Furthermore, two square grooves are formed on the outer surface of the fixed tube, a connecting block is fixed on the outer surface of the spring and the connecting block passes through the square groove, movable plates are rotatably installed on both sides of the outer surface of the fixed tube, and a baffle is fixed on one side of the inner wall of the mounting ring.

[0013] Furthermore, it also includes a safety assembly, which includes a sealing ring, a retaining ring, and a threaded rod. The sealing ring is fixed to the outer surface of the check frame, the retaining ring is fixed to one side of the sealing ring, and the threaded rod passes through one side of the retaining ring.

[0014] Furthermore, the threaded rod has two nuts threaded through both ends, and the movable plate contacts one side of the baffle.

[0015] Compared with existing technologies, the advantages of this utility model are:

[0016] I. This utility model, through the design of a diaphragm pump and disassembly assembly, allows for easy replacement of the aging movable plate inside the check valve when it becomes worn. Workers simply need to grasp the two connecting blocks and move them synchronously towards the center, compressing the two springs inside the fixed tube. The locking pin moves with the springs, allowing its end to move out of the fixed hole. At this point, the entire component on the fixed tube can be disassembled. When replacing the movable plate, the above steps are repeated, aligning the locking pin with the fixed hole. Then, the hand pressing the connecting blocks is released, and under the spring's elastic force, the spring quickly returns to its original shape, causing the end of the locking pin to engage in the fixed hole. This allows for the replacement of the worn movable plate alone, without needing to replace the entire check valve, thus significantly reducing maintenance and replacement costs.

[0017] II. Based on the first beneficial effect, by setting up a diaphragm pump, disassembly components, and safety components, when installing the check device, the check device is installed on both sides of the vent pipe. Then, the sealing ring is placed on the outer surface of the check frame, and the fixing ring is tied to one side of the sealing ring. The threaded rod passes through the fixing ring, and then the two nuts are tightened at both ends of the threaded rod. This improves the sealing performance of the check frame installation, making the connection between the check frame and the vent pipe tighter and more secure. This helps to prevent fluid leakage under high pressure or high flow rate conditions, thereby ensuring the safety of the entire pipeline system. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a first-person perspective schematic diagram of the present invention;

[0020] Figure 2 This is a second-view schematic diagram of the present invention;

[0021] Figure 3 This is a structural diagram of the disassembly assembly of this utility model;

[0022] Figure 4 This is an exploded view of the disassembly component of this utility model;

[0023] Figure 5 This is a schematic diagram of the safety component of this utility model.

[0024] The following is a list of components represented by each number in the attached diagram:

[0025] 11. Diaphragm pump; 12. Base; 13. Inlet pipe; 14. Outlet pipe;

[0026] 21. Anti-reverse frame; 22. Mounting ring; 23. Fixing hole; 24. Fixing tube; 241. Square groove; 25. Spring; 251. Connecting block; 26. Locking post; 27. Movable plate; 28. Baffle;

[0027] 31. Sealing ring; 32. Retaining ring; 33. Threaded rod; 34. Nut. DETAILED DESCRIPTION

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0032] Please see Figures 1 to 5 As shown, this embodiment is a check valve device for discharging silane feedstock from a storage tank via a diaphragm pump, comprising:

[0033] Diaphragm pump 11, air outlet pipe 14, air outlet pipe 14 is fixed on one side of diaphragm pump 11, base 12 is fixed on the lower surface of diaphragm pump 11, and air inlet pipe 13 is fixed at the lower end of diaphragm pump 11.

[0034] The diaphragm pump 11 is a positive displacement pump that draws in and discharges fluids through the movement of a diaphragm. During the transportation of silane feedstock, the diaphragm pump 11 provides stable flow and pressure, ensuring a continuous supply of silane feedstock.

[0035] The disassembly assembly includes a check frame 21, a mounting ring 22, a fixing tube 24, a spring 25, and a locking pin 26. The check frame 21 is fixed to one side of the air outlet pipe 14, the mounting ring 22 is fixed inside the check frame 21, the fixing tube 24 is located in the middle of the mounting ring 22, two springs 25 are fixed at both ends of the fixing tube 24, and two locking pins 26 are fixed at one end of the corresponding spring 25.

[0036] The check frame 21 is part of the check device, used to fix the entire check device and prevent it from moving or falling off during use. The fixing tube 24 is located in the middle of the mounting ring 22, used to accommodate the spring 25 and the locking pin 26, and to provide them with space to move. The spring 25 is one of the key components of the check device, and controls the position of the locking pin 26 through elastic force, thereby realizing the disassembly and assembly of the movable plate 27.

[0037] Furthermore, fixing holes 23 are provided on the upper and lower sides of the inner side of the mounting ring 22, and the ends of the two locking pins 26 are inserted into the fixing holes 23. Two square grooves 241 are provided on the outer surface of the fixing tube 24. A connecting block 251 is fixed on the outer surface of the spring 25, and the connecting block 251 passes through the square groove 241. Movable plates 27 are rotatably installed on both sides of the outer surface of the fixing tube 24, and a baffle 28 is fixed on one side of the inner wall of the mounting ring 22.

[0038] The fixing hole 23 is used to accommodate and fix the end of the locking post 26. The square groove 241 is connected to the movable connecting block 251. The connecting block 251 passes through the square groove 241 and is connected to the spring 25, so that the spring 25 can reciprocate on the fixing tube 24. The connecting block 251 is used to transmit the elastic force of the spring 25 and drive the locking post 26 to move.

[0039] The movable plate 27 is a movable component in the check valve. It contacts the baffle 28 to control the flow direction of the fluid. When the fluid flows in the forward direction, the movable plate 27 is open. When the fluid flows in the reverse direction, the movable plate 27 is blocked by the baffle 28, which limits the rotation range of the movable plate 27 and ensures that the movable plate 27 is closed when the fluid flows in the reverse direction to prevent backflow.

[0040] Working principle:

[0041] When the movable plate 27 inside the check valve ages, the operator only needs to pinch the two connecting blocks 251 and move them synchronously towards the center, so that the two springs 25 are compressed inside the fixed tube 24. At this time, the locking pin 26 moves with the movement of the springs 25, so that the end of the locking pin 26 moves out of the fixed hole 23. At this time, the components on the entire fixed tube 24 can be disassembled. When replacing the new movable plate 27, repeat the above steps, then drive the locking pin 26 to align with the fixed hole 23, and then release the hand that is pressing the connecting block 251. Under the elastic force of the spring 25, the spring 25 quickly returns to its deformation, driving the end of the locking pin 26 to lock into the fixed hole 23.

[0042] This step allows for the replacement of the aged movable plate 27 separately, without replacing the entire check valve, thus significantly reducing maintenance and replacement costs.

[0043] Please see Figures 1 to 5 As shown; this embodiment, based on the above embodiment, further includes:

[0044] The safety assembly includes a sealing ring 31, a retaining ring 32, and a threaded rod 33. The sealing ring 31 is fixed to the outer surface of the check frame 21, the retaining ring 32 is fixed to one side of the sealing ring 31, and the threaded rod 33 passes through one side of the retaining ring 32. Two nuts 34 are threaded through both ends of the threaded rod 33, and the movable plate 27 contacts one side of the baffle 28.

[0045] The sealing ring 31 is a key component installed on the outer surface of the check frame 21. Its main function is to provide a sealing effect. The retaining ring 32 is used to firmly fix the sealing ring 31 to the check frame 21. The threaded rod 33 has threads at both ends, passes through the retaining ring 32, and is tightened by the nut 34.

[0046] Working principle:

[0047] When installing the check valve, install the check valve on both sides of the vent pipe 14, then put the sealing ring 31 on the outer surface of the check frame 21, then tie the fixing ring 32 on one side of the sealing ring 31, the threaded rod 33 passes through the fixing ring 32, and then tighten the two nuts 34 at both ends of the threaded rod 33 to improve the sealing performance of the check frame 21 and make the connection between the check frame 21 and the vent pipe 14 tighter and more secure.

[0048] This step helps prevent fluid leakage under high pressure or high flow rate conditions, thereby ensuring the safety of the entire pipeline system.

[0049] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0050] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A check valve for discharging silane feedstock from a storage tank via a diaphragm pump, characterized in that, include: Diaphragm pump (11) and vent pipe (14), wherein the vent pipe (14) is fixed to one side of diaphragm pump (11); The disassembly assembly includes a check frame (21), a mounting ring (22), a fixing tube (24), a spring (25), and a locking pin (26). The check frame (21) is fixed to one side of the air outlet pipe (14), the mounting ring (22) is fixed inside the check frame (21), the fixing tube (24) is located in the middle of the mounting ring (22), two springs (25) are fixed at both ends of the fixing tube (24), and two locking pins (26) are fixed at one end of the corresponding spring (25).

2. The check valve for discharging silane feedstock from a storage tank via a diaphragm pump according to claim 1, characterized in that, The diaphragm pump (11) has a base (12) fixed on its lower surface and an air inlet pipe (13) fixed at its lower end.

3. The check valve for discharging silane feedstock from a storage tank via a diaphragm pump according to claim 1, characterized in that, The mounting ring (22) has fixing holes (23) on its upper and lower sides, and the ends of the two locking pins (26) are inserted into the fixing holes (23).

4. The check valve for discharging silane feedstock from a storage tank via a diaphragm pump according to claim 1, characterized in that, Two square grooves (241) are opened on the outer surface of the fixed tube (24). A connecting block (251) is fixed on the outer surface of the spring (25) and the connecting block (251) passes through the square groove (241). Movable plates (27) are rotatably installed on both sides of the outer surface of the fixed tube (24). A baffle (28) is fixed on one side of the inner wall of the mounting ring (22).

5. A check valve for discharging silane feedstock from a storage tank via a diaphragm pump according to claim 4, characterized in that, It also includes a safety assembly, which includes a sealing ring (31), a retaining ring (32), and a threaded rod (33). The sealing ring (31) is fixed to the outer surface of the check frame (21), the retaining ring (32) is fixed to one side of the sealing ring (31), and the threaded rod (33) passes through one side of the retaining ring (32).

6. A check valve for discharging silane feedstock from a storage tank via a diaphragm pump according to claim 5, characterized in that, The threaded rod (33) has two nuts (34) threaded through both ends, and the movable plate (27) is in contact with one side of the baffle (28).

Images