Locking device for preventing separation and air leakage of pouring head and pouring tank during positive pressure pouring
By designing an anti -leakage locking device that includes the pouring tank on the interface and locking device, the pouring head and the pouring tank are solved during the pouring of the positive pressure pouring process. The tight connection of the tank improves the quality of pouring.
Patent Information
- Application Number
- CN202420294809.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-18
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-02-18
AI Technical Summary
During the positive pressure pouring process, the docking point between the pouring head and the pouring tank is easy to separate, resulting in air leakage, and the normal pressure pouring cannot meet the product quality requirements.
Design a prolapse leakage locking device including the pouring tank and the locking device. The pouring tank's interface is the ring structure. The walls have a convex point. By rotating the locking device, the convex point moves in the slider. The pouring head is inserted into the round hole from the top, and the convex ring is clamped between the locking device and the pouring tank to achieve close connection.
Effectively prevent the separation of the pouring head from the pouring tank, avoid the phenomenon of air leakage, improve the quality of pouring, and ensure the satisfaction of product quality.
Smart Images
Figure CN222406790U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mutual inductor processing tooling, in particular to a locking device for preventing separation and leakage of a pouring head and a pouring pot during positive pressure pouring. Background Art
[0002] With the improvement of market and user requirements for the quality of transformer products, as well as the research on the local discharge value of difficult products, conventional casting can no longer meet the quality requirements. In this context, a new transformer casting process method was studied: positive pressure casting. That is, a certain amount of protective gas is pre-injected into the casting tank, and the casting liquid is injected into the casting tank at a certain pressure through the casting head for casting. Positive pressure casting can reduce the coil field strength and improve the partial discharge qualification rate, but at the same time there are certain problems in actual operation. The most important problem is that the casting is difficult and easy to leak. Since the casting tank is filled with a large amount of protective gas, once the casting head is separated from the casting tank, it will cause leakage. In the prior art, the casting head is directly inserted into the casting tank joint during casting, and the contact surface of the two is pressed by the weight of the casting head itself, which will cause leakage. Whether it is the vacuum requirement or the gas sealing after the inflation is completed, there will be hidden dangers. Moreover, after docking, due to the high pressure in the casting tank, the two are easily separated, and the effect of positive pressure casting cannot be achieved, and the product quality cannot be guaranteed. Summary of the invention
[0003] In order to improve at least one defect of the prior art, the utility model provides a locking device to prevent separation and leakage of a pouring head and a pouring tank during positive pressure pouring, which solves the problem of leakage caused by easy separation at the joint between the pouring head and the pouring tank during positive pressure pouring and the problem that normal pressure pouring cannot meet product quality requirements.
[0004] The technical scheme adopted by the utility model is a locking device for preventing separation and leakage of a pouring head and a pouring pot during positive pressure pouring, comprising a pouring pot docking port and a locking device, wherein the pouring pot docking port is fixedly connected to the upper end of the pouring port of the pouring pot, the pouring pot docking port is a circular ring structure, and three slideways are evenly distributed along the circumference on the outer side wall of the pouring pot docking port, the slideway is composed of three continuous sections, the uppermost section is an inlet section, and its end portion passes through the upper end surface of the pouring pot docking port, the inlet section is funnel-shaped, and the middle section is a slope section, which is arranged along the pouring pot docking port. The outer wall arc surface of the interface is a trough body that is inclined downward, and the lowest section is a horizontal section, which is a trough body extending horizontally along the outer wall arc surface of the pouring tank docking interface. The locking device is a circular groove structure, and a circular hole is processed on the bottom surface of the groove. A handle is fixedly connected to the outer wall of the locking device, and three convex points are evenly distributed along the circumference on the inner wall of the locking device. When the locking device is rotated, the convex points move in the slide along the direction of the slide. The pouring head is inserted into the circular hole from above, and a convex ring is processed on the outer wall of the pouring head, and the convex ring is located between the locking device and the pouring tank docking interface.
[0005] Preferably, a notch is processed on the inner side wall of the upper end surface of the pouring pot docking interface, and the outer diameter of the notch is equal to or greater than the outer diameter of the convex ring, so as to facilitate radial positioning of the convex ring.
[0006] Preferably, the diameter of the circular hole is larger than the outer diameter of the pouring head and smaller than the outer diameter of the convex ring, so as to facilitate the fitting and pressing of the locking device and the pouring head.
[0007] Preferably, the difference between the distance between the protrusion and the bottom surface of the locking device groove body and the distance between the groove and the lowest end of the horizontal section is equal to the height of the protruding ring, that is, when the protrusion is screwed into the horizontal section, the protruding ring is clamped between the locking device and the pouring tank interface.
[0008] The beneficial effects of the utility model are: the utility model has a simple structure, is easy to operate, has a good sealing effect, has a safe and firm connection, and improves the casting quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 This is a schematic diagram of the structure of a locking device to prevent separation and leakage of a pouring head and a pouring tank during positive pressure pouring.
[0010] Figure 2 It is a structural schematic diagram of the locking device in the locked state.
[0011] Figure 3 This is the front view of the pouring tank docking interface.
[0012] Figure 4 This is a top view of the pouring tank docking interface.
[0013] Figure 5 The schematic diagram of the cross-sectional structure of the locking device is marked as follows: 1-pouring tank docking port, 2-locking device, 3-pouring head, 4-pouring tank, 11-slide, 21-round hole, 22-handle, 23-convex point, 31-convex ring, 111-entrance section, 112-slope section, 113-horizontal section, 114-notch. DETAILED DESCRIPTION
[0014] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0015] like Figures 1 to 5As shown, a locking device for preventing separation and leakage of a pouring head and a pouring pot during positive pressure pouring is used. The locking device 2 can tightly connect the pouring head 3 and the pouring pot 4, which can not only play a pressing role, but also play a role in preventing separation. The device includes a pouring pot docking port 1 and a locking device 2. The pouring pot docking port 1 is fixedly connected to the upper end of the pouring port of the pouring pot 4. The pouring pot docking port 1 is a circular ring structure. The inner side wall of the upper end surface of the pouring pot docking port 1 is processed with a notch 114. The outer diameter of the notch 114 is equal to or greater than the outer diameter of the convex ring 31, which is convenient for radial positioning of the convex ring 31. Three slideways 11 are evenly distributed along the circumference of the outer side wall of the pouring pot docking port 1. The slideway 11 is planed and milled on the pouring pot docking port 1 by a machine tool, and is an integral part with the pouring pot docking port 1. The slideway 11 is composed of three sections that continuously form a groove extending along the outer wall arc surface of the pouring tank docking interface 1. The uppermost section is the entrance section 111, and its end passes through the upper end surface of the pouring tank docking interface 1. The entrance section 111 is funnel-shaped and has a large mouth at the upper end to facilitate the convex point 23 to enter the slideway 11. The middle section is the slope section 112, which is a groove body inclined downward along the outer wall arc surface of the pouring tank docking interface 1. The lowermost section is the horizontal section 113, which is a groove body extending in the horizontal direction along the outer wall arc surface of the pouring tank docking interface 1. The horizontal section 113 can lock and prevent the convex point 23 from 3 is moved up, the locking device 2 is a circular groove structure, and a circular hole 21 is processed on the bottom surface of the groove. The aperture of the circular hole 21 is larger than the outer diameter of the pouring head 3 and smaller than the outer diameter of the convex ring 31. In this embodiment, the aperture of the circular hole 21 is 2 mm larger than the outer diameter of the pouring head 3, and can be rotated and slid on the pouring head 3, which is equivalent to the locking device 2 being sleeved on the pouring head 3. The outer diameter of the convex ring 31 of the pouring head 3 is 5 mm larger than the outer diameter of the pouring head 3, that is, 3 mm larger than the aperture of the circular hole 21 of the locking device 2. In this way, the locking device 2 can press the convex ring 31 against the pouring tank docking port 1 when rotating. A handle 22 is fixedly connected to the outer wall of the locking device 2, and three convex points 23 are evenly distributed along the circumference on the inner wall of the locking device 2. When the locking device 2 is rotated, the convex point 23 moves in the slideway 11 along the direction of the slideway 11. The convex point 23 is equivalent to the role of a handle and can be firmly held in the slideway 11. The more it rotates downward, the tighter the upper pouring head 3 will be pressed onto the pouring pot docking port 1. The pouring head 3 is inserted into the circular hole 21 from above, and the outer wall of the pouring head 3 is processed with a convex ring 31, which is located between the locking device 2 and the pouring pot docking port 1. In addition, in order to better lock and prevent air leakage, the difference between the distance between the convex point 23 and the bottom surface of the groove body of the locking device 2 and the distance between the notch 114 and the lowest end of the horizontal section 113 is equal to the height of the convex ring 31, that is, when the convex point 23 is screwed into the horizontal section 113, the convex ring 31 is clamped between the notch 114 of the locking device 2 and the pouring pot docking port 1.
[0016] The pouring head 3 and the pouring tank docking port 1 are locked tighter and tighter as the locking device 2 rotates, and the slope of the slideway 11 is small. This can reduce the operator's usage intensity and make it easy to rotate. Secondly, it can prevent the locking device 2 from rebounding along the track of the slideway 11 and affecting the locking effect.
[0017] When in use, first put the product to be poured into the pouring pot 4 and fill the pouring pot 4 with protective gas, fix the pouring pot docking port 1 on the pouring pot 4, and put the locking device 2 on the pouring head 3; after the pouring head 3 is docked with the pouring pot docking port 1, rotate the locking device 2 to make the protrusion 23 slide into the horizontal section 113 of the slideway 11, and clamp the pouring head 3 with the pouring pot docking port 1, that is, the pouring head 3 is tightly connected with the pouring pot 4. Then, the pouring liquid is pressed into the pouring pot 4 by pressurizing the upper end of the pouring head 3 to realize positive pressure pouring.
[0018] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A locking device for preventing separation and leakage of a pouring head and a pouring tank during positive pressure pouring, characterized in that: The invention comprises a pouring tank docking port (1) and a locking device (2), wherein the pouring tank docking port (1) is fixedly connected to the upper end of the pouring port of the pouring tank (4), the pouring tank docking port (1) is a circular ring structure, and three slideways (11) are evenly distributed along the circumference of the outer wall of the pouring tank docking port (1), the slideway (11) is composed of three continuous sections, the uppermost section is an entrance section (111), the end of which passes through the upper end surface of the pouring tank docking port (1), the entrance section (111) is funnel-shaped, the middle section is a slope section (112), which is a trough body inclined downward along the arc surface of the outer wall of the pouring tank docking port (1), and the lowermost section is a horizontal section (113). The invention relates to a groove body extending in the horizontal direction along the arc surface of the outer wall of the pouring pot joint (1); the locking device (2) is a circular groove structure, a circular hole (21) is processed on the bottom surface of the groove, a handle (22) is fixedly connected to the outer wall of the locking device (2), three convex points (23) are evenly distributed along the circumference on the inner wall of the locking device (2); when the locking device (2) is rotated, the convex points (23) move in the slideway (11) along the direction of the slideway (11); the pouring head (3) is inserted into the circular hole (21) from above, and a convex ring (31) is processed on the outer wall of the pouring head (3); the convex ring (31) is located between the locking device (2) and the pouring pot joint (1).
2. The anti-separation and air leakage locking device for the pouring head and the pouring tank during positive pressure pouring according to claim 1, characterized in that: A notch (114) is processed on the inner side wall of the upper end surface of the pouring pot docking port (1), and the outer diameter of the notch (114) is equal to or greater than the outer diameter of the convex ring (31).
3. The anti-separation and air leakage locking device for the pouring head and the pouring tank during positive pressure pouring according to claim 1, characterized in that: The diameter of the circular hole (21) is larger than the outer diameter of the pouring head (3) and smaller than the outer diameter of the convex ring (31).
4. The anti-separation and air leakage locking device for the pouring head and the pouring tank during positive pressure pouring according to claim 2, characterized in that: The difference between the distance between the protrusion (23) and the bottom surface of the groove body of the locking device (2) and the distance between the notch (114) and the lowest end of the horizontal section (113) is equal to the height of the protrusion (31), that is, when the protrusion (23) is screwed into the horizontal section (113), the protrusion (31) is clamped between the locking device (2) and the pouring tank docking port (1).