Quick-release plug

Abstract

The utility model provides a quick-release plug, relates to the technical field of plugs, and solves the technical problems of complex installation and high labor intensity when a plug is installed in an over-overflow matching mode. The quick-release plug comprises an adjusting unit, a connecting rod unit, a supporting pipe unit and a sealing unit, the sealing unit is connected to the tail end of the connecting rod unit so as to plug the water path opening; the pipe supporting unit is movably arranged on the connecting rod unit and located on the inner side of the sealing unit and can be unfolded outwards to lock and support the pipe wall or closed inwards to loosen the pipe wall during moving. The adjusting unit is connected with the connecting rod unit and can drive the connecting rod unit to move axially. The device has the advantages of being convenient to install, simple in structure and reliable in sealing, can be flexibly adjusted according to the depth of the position of a waterway hole, and meets various die waterway sealing use scenes; and quick disassembly and secondary use can be performed according to use requirements, so that the material cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of plugs, in particular to a quick-release plug. Background Art

[0002] Plugs are used to block unnecessary openings in pipes, providing a seal and functioning similarly to blind plates, end caps, and pipe caps. When sealing water pipes, existing plugs vary in size depending on the pipe size. During mold production, changes to the waterway may necessitate modifications due to product changes and mold lifespan, necessitating the sealing of the mold waterway. Currently, the method for sealing mold waterway modifications is plugging, primarily using traditional threaded joints and copper plugs for rigid connections.

[0003] The applicant has discovered that the prior art has at least the following technical problems:

[0004] Existing copper plugs are mostly used for sealing mold water channels due to the certain ductility of copper materials. However, their installation mainly relies on metal overflow to achieve rigid connection of materials, which has problems such as complex installation and high labor intensity. Utility Model Content

[0005] The purpose of the utility model is to provide a mold pipeline quick-release plug that is easy to install, simple in structure, and reliable in sealing, so as to solve the technical problems in the prior art that the plug is installed in an over-and-overflow matching manner, which results in complex installation and high labor intensity.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] The utility model provides a mold water channel quick-release plug, which includes an adjustment unit, a connecting rod unit, a pipe support unit, and a sealing unit; wherein:

[0008] The sealing unit is connected to the end of the connecting rod unit to seal the waterway opening;

[0009] The pipe supporting unit is movably arranged on the connecting rod unit and is located inside the sealing unit. It can be expanded outwards to lock and support the pipe wall or closed inwards to loosen the pipe wall when moving.

[0010] The adjusting unit is connected to the connecting rod unit and can drive the connecting rod unit to move axially.

[0011] The mold water channel quick-release plug provided by the utility model is a pipe plug that is easy to install, simple in structure, and reliable in sealing. The adjusting unit can drive the connecting rod unit to move, and when the connecting rod unit moves, the support pipe unit is expanded to lock the inner wall of the pipeline or retract it to realize the disassembly of the plug. Compared with traditional commonly used threaded sealing plugs, this utility model can save the thread processing step and directly install the corresponding plug according to the actual size of the mold water channel.

[0012] As a further improvement of the present invention, the adjustment unit includes an adjustment cylinder, a telescopic cylinder, a locking groove, a sliding groove, a mounting seat, a clamping column, and a spring; wherein:

[0013] The lower part of the adjusting cylinder is symmetrically provided with the locking groove opened along the circumferential direction;

[0014] The telescopic cylinder is sleeved in the adjusting cylinder and can be telescopically moved relative to the adjusting cylinder in the axial direction;

[0015] The telescopic cylinder is symmetrically provided with the sliding groove opened along the axial direction;

[0016] The mounting seat is placed in the telescopic cylinder and can move axially relative to the telescopic cylinder;

[0017] The clamping column is arranged on the mounting seat, and both ends thereof pass through the sliding groove and are engaged with the locking groove;

[0018] One end of the spring abuts against the mounting seat, and the other end abuts against the top wall of the telescopic cylinder.

[0019] As a further improvement of the present invention, the top of the adjusting cylinder is an open structure, and the inner wall of the open end is provided with an internal thread section, and the extension section is detachably connected to the internal thread section to extend the overall length of the quick-release plug.

[0020] Through the above structural setting, the depth of the water channel hole position can be flexibly adjusted to meet the use scenarios of various mold water channel sealing.

[0021] As a further improvement of the present invention, the connecting rod unit includes a fixed cylinder and a push rod, a first pull rod and a second pull rod arranged in the fixed cylinder; wherein:

[0022] The fixed cylinder is detachably connected to the telescopic cylinder;

[0023] One end of the push rod is connected to the mounting seat, and the other end is connected to the first pull rod;

[0024] The second pull rod is sleeved on the end of the top rod and is arranged side by side and staggered with the first pull rod;

[0025] The pipe supporting unit is connected to the first pull rod and the second pull rod respectively.

[0026] As a further improvement of the present invention, a fixing ring is provided at the end of the push rod; the number of the first pull rods is four, which are evenly spaced and arranged around the circumference of the fixing ring.

[0027] As a further improvement of the present invention, the first pull rod is a rectangular plate-shaped structure with a first accommodating groove provided on the outer end surface, and at least one first rotating hole is provided on the first pull rod corresponding to the position of the first accommodating groove.

[0028] As a further improvement of the present invention, the second pull rod includes a top seat and a connecting plate connected to the bottom of the top seat; wherein:

[0029] The top seat is sleeved on the top rod and abuts against the fixing ring;

[0030] The connecting plates are rectangular plate-shaped structures, and there are four of them, which are evenly arranged along the circumference of the fixing ring, and the connecting plates and the first pull rods are staggered.

[0031] A second accommodating groove is provided on the outer end surface of the connecting plate; and at least one second rotating hole is provided on the connecting plate at a position corresponding to the second accommodating groove.

[0032] As a further improvement of the present invention, the pipe support unit includes a small support block, a large support block, and a guide seat; wherein:

[0033] The small support blocks are 1 / 12 circular ring structures, and there are four of them. They are movably connected to the first pull rod through connecting rods. The small support blocks can be expanded outward or retracted inward when the push rod is raised or lowered.

[0034] The large support blocks are 1 / 6 circular ring structures, and there are four of them, which are movably connected to the second pull rod through a connecting rod. The large support blocks can be expanded outward or retracted inward when the push rod is raised or lowered;

[0035] The large support block and the small support block can be spliced together to form a circle when they are stretched outwards, so as to be supported on the inner wall of the waterway to be blocked;

[0036] The guide seat is arranged at the bottom of the push rod, and a guide hole for the first connecting rod and the second connecting rod to pass through is arranged on the guide seat along the circumferential direction.

[0037] As a further improvement of the present invention, the sealing unit includes a sealing disk and a screw; wherein:

[0038] The sealing disk is connected to the top seat via the screw;

[0039] The guide seat passes through the screw and is placed in the concave cavity of the sealing disk.

[0040] As a further improvement of the present invention, a U-shaped connecting portion is provided on both the large support block and the small support block; there is at least one connecting rod, one end of which is rotatably connected in the U-shaped connecting portion, and the other end is rotatably connected to the first pull rod or the second pull rod.

[0041] The plug of the utility model can be quickly disassembled and used twice according to usage needs, thereby reducing material costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0043] Figure 1 This is a structural diagram of the utility model quick-release plug;

[0044] Figure 2 This is a structural diagram of the utility model wherein the quick-release plug is removed from the adjusting cylinder;

[0045] Figure 3 This is a structural diagram of the utility model quick-release plug after the adjustment tube and the telescopic tube are removed;

[0046] Figure 4 This is a structural diagram of the connecting rod unit, the pipe support unit and the sealing unit in the quick-release plug of the utility model;

[0047] Figure 5 This is a partial structural diagram of the quick-release plug of the utility model for removing the sealing disk;

[0048] Figure 6 This is a schematic structural diagram of the quick-release plug of the utility model from another perspective;

[0049] Figure 7 This is a structural diagram of the utility model wherein the quick-release plug is removed from the sealing disk;

[0050] Figure 8 This is a schematic structural diagram of the connecting rod unit in the quick-release plug of the utility model;

[0051] Figure 9 This is a schematic structural diagram of the second pull rod in the quick-release plug of the utility model;

[0052] Figure 10 This is a structural diagram of the support pipe unit in the quick-release plug of the utility model;

[0053] Figure 11 This is a structural diagram of the support pipe unit in the quick-release plug of the utility model from another perspective;

[0054] Figure 12 This is a schematic diagram of the explosion structure of the quick-release plug of the utility model;

[0055] Figure 13 This is a bottom view of the fixed cylinder in the quick-release plug of the utility model;

[0056] Figure 14 This is a schematic diagram of the structure of the large support block in the quick-release plug of the utility model;

[0057] Figure 15 This is a schematic diagram of the structure of the small support block in the quick-release plug of the utility model;

[0058] Figure 16 This is a schematic diagram of the structure of the adjustment cylinder in the quick-release plug of the utility model;

[0059] Figure 17 This is a structural diagram of the adjustment tube in the quick-release plug of the utility model from another perspective;

[0060] Figure 18 This is a schematic diagram of the structure of the telescopic cylinder in the quick-release plug of the utility model;

[0061] Figure 19 It is a structural schematic diagram of the telescopic tube in the quick-release plug of the utility model from another perspective.

[0062] In the figure, 1. adjusting unit; 11. adjusting cylinder; 12. telescopic cylinder; 13. locking groove; 14. sliding groove; 15. mounting seat; 16. clamping column; 17. spring; 18. internal thread section; 2. connecting rod unit; 21. fixing cylinder; 22. top rod; 23. first pull rod; 231. first accommodating groove; 232. first rotating hole; 24. second pull rod; 241. top seat; 242. connecting plate; 243. second accommodating groove; 244. second rotating hole; 25. fixing ring; 3. support tube unit; 31. small support block; 32. large support block; 33. guide seat; 34. connecting rod; 35. guide hole; 36. U-shaped connecting part; 4. sealing unit; 41. sealing disk; 42. screw; 43. concave cavity. DETAILED DESCRIPTION

[0063] To make the purpose, technical solution, and advantages of the present invention more clear, the technical solution of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0064] like Figures 1-19 As shown, the utility model provides a mold water channel quick-release plug, which can be used to seal the mold water channel. Of course, the quick-release plug can also be used to seal other pipe openings, not limited to the mold water channel.

[0065] The following is a specific explanation using the example of blocking the mold water channel.

[0066] In this embodiment, the quick-release plug includes an adjustment unit 1, a connecting rod unit 2, a pipe support unit 3, and a sealing unit 4; wherein:

[0067] The sealing unit 4 is connected to the end of the connecting rod unit 2 to seal the waterway opening under the drive of the connecting rod unit 2;

[0068] The pipe support unit 3 is movably arranged on the connecting rod unit 2 and is located inside the sealing unit 4. It can be expanded outward to lock and support the pipe wall or closed inward to loosen the pipe wall when moving;

[0069] The adjusting unit 1 is connected to the connecting rod unit 2 and can drive the connecting rod unit 2 to move axially.

[0070] The mold water channel quick-release plug provided by the utility model is a pipe plug that is easy to install, simple in structure, and reliable in sealing. The adjusting unit 1 can drive the connecting rod unit 2 to move. When the connecting rod unit 2 moves, the support pipe unit 3 is opened to lock the inner wall of the pipeline or retract it to realize the disassembly of the plug. Compared with traditional commonly used threaded sealing plugs, this utility model can save the thread processing step and directly install the corresponding plug according to the actual size of the mold water channel.

[0071] As an optional embodiment of the present invention, the adjustment unit 1 includes an adjustment cylinder 11, a telescopic cylinder 12, a locking groove 13, a sliding groove 14, a mounting seat 15, a clamping column 16, and a spring 17; wherein:

[0072] The adjustment cylinder 11 is a cylindrical structure with open ends. A locking groove 13 is symmetrically provided at the lower portion of the adjustment cylinder 11 along the circumference. Specifically, there are two locking grooves 13, and the openings face opposite directions, so that the locking column 16 locked in the locking groove 13 can be released or locked during rotation.

[0073] The telescopic cylinder 12 is a cylindrical structure with one end open and a sealed top. The telescopic cylinder 12 is sleeved in the adjustment cylinder 11 and can move axially relative to the adjustment cylinder 11.

[0074] The telescopic cylinder 12 is symmetrically provided with axially opened sliding grooves 14; specifically, there are two sliding grooves 14, and the sliding grooves 14 are straight groove structures and extend along the axial direction of the telescopic cylinder 12;

[0075] The mounting seat 15 is placed in the telescopic cylinder 12 and can move axially relative to the telescopic cylinder 12;

[0076] The clamping column 16 is horizontally arranged on the mounting seat 15, and its two ends respectively pass through the sliding groove 14 and are engaged with the locking groove 13;

[0077] One end of the spring 17 abuts against the mounting seat 15 , and the other end abuts against the top wall of the telescopic cylinder 12 .

[0078] Furthermore, taking into account the different depths of the pipe openings and the problem of whether there are components interfering near the pipe openings, which may make it difficult to install the plug, in this embodiment, the top of the adjusting cylinder 11 is an open structure, and the inner wall of the open end is provided with an internal thread section 18, and the extension section is detachably connected to the internal thread section 18 to extend the overall length of the quick-release plug.

[0079] Through the above structural setting, the depth of the water channel hole position can be flexibly adjusted to meet the use scenarios of various mold water channel sealing.

[0080] As an optional embodiment of the present invention, the connecting rod unit 2 includes a fixed cylinder 21 and a push rod 22, a first pull rod 23 and a second pull rod 24 arranged in the fixed cylinder 21; wherein:

[0081] The fixed tube 21 is a cylindrical structure with a sealed top. The top of the fixed tube 21 extends upward to form a connecting ring with an external thread. The inner wall of the bottom of the telescopic tube 12 is provided with an internal thread. The fixed tube 21 is detachably connected to the internal thread of the telescopic tube 12 through the external thread on the connecting ring.

[0082] With this structural arrangement, the mounting seat 15 cannot enter the fixed cylinder 21 and can only move within the telescopic cylinder 12 .

[0083] One end of the top rod 22 is connected to the mounting seat 15, and the other end is connected to the first pull rod 23. Specifically, the top rod 22 is a segmented structure, including a thick rod section and a thin rod section. The thick rod section is provided with a hole for the clamping column 16 to pass through; the mounting seat 15 is provided with a hole for the thick rod section to pass through. During installation, after the thick rod section passes through the hole of the mounting seat 15, the clamping column 16 passes through the hole of the thick rod section and the hole of the mounting seat 15 in turn, and then extends out of the slide 14. When the thick rod section is installed on the mounting seat 15, and the clamping column 16 is inserted into the thick rod section and the mounting seat 15, the top end of the thick rod section protrudes from the mounting seat, facilitating the installation and fixation of the spring 17. The thin rod section is connected to the first pull rod 23 and the second pull rod 24.

[0084] The first pull rod 23 is installed at the end of the thin rod section, and the extension direction of the first pull rod 23 is parallel to the axial direction of the top rod 22;

[0085] The second pull rod 24 is sleeved on the end of the top rod 22 and is arranged side by side and staggered with the first pull rod 23. It should be noted that the side by side and staggered here means that the first pull rod 23 and the second pull rod 24 are parallel to each other and maintain the same extension direction; and the first pull rod 23 and the second pull rod 24 are arranged alternately along the circumferential direction after being unfolded, so as to be connected to the staggered small support blocks 31 and large support blocks 32 respectively.

[0086] The pipe support unit 3 is connected to the first tie rod 23 and the second tie rod 24 respectively.

[0087] As an optional embodiment of the present invention, a fixing ring 25 is provided at the end of the top rod 22; there are four first pull rods 23, which are evenly spaced around the side of the fixing ring 25, that is, the first pull rods 23 are connected to the edge of the fixing ring 25 at a 90-degree angle.

[0088] Furthermore, the first pull rod 23 is a rectangular plate-like structure, and a first accommodating groove 231 is provided on the outer end face (the end face away from the other side of the first pull rod 23). The first accommodating groove 231 is a U-shaped structure, and at least one first rotating hole 232 is provided on the first pull rod 23 corresponding to the position of the first accommodating groove 231.

[0089] It should be noted that all the first rotation holes 232 are arranged at intervals along the axial direction of the push rod 22; optimally, there are two first rotation holes 232, and the two first rotation holes 232 are rotatably connected to the support tube unit 3 through a pin shaft or a rotating shaft.

[0090] Furthermore, the second pull rod 24 includes a top seat 241 and a connecting plate 242 connected to the bottom of the top seat 241; wherein:

[0091] The top seat 241 is a cylindrical structure with a through hole in the middle. The top seat 241 is sleeved on the thin rod section of the top rod 22 through the middle through the through hole, and the bottom of the top seat 241 abuts against the top surface of the fixing ring 25; through this structure, the connection and limitation of the second pull rod 234 and the top rod 22 are achieved.

[0092] The connecting plates 242 are rectangular plate structures, and there are four of them, which are evenly arranged along the circumference of the fixing ring 25, and the connecting plates 242 and the first pull rods 23 are staggered. It should be noted that in order to ensure that the connecting plates 242 in the first pull rod 23 and the second pull rod 24 are in a concentric circle structure.

[0093] A second accommodating groove 243 is provided on the outer end surface of the connecting plate 242 (the end surface away from the other side connecting plate 242); specifically, the second accommodating groove 243 is also a U-shaped groove; at least one second rotating hole 244 is provided on the connecting plate 242 corresponding to the position of the second accommodating groove 243.

[0094] It should be noted that all the second rotation holes 243 are arranged at intervals along the axial direction of the push rod 22; optimally, there are two second rotation holes 243, and the two second rotation holes 243 are rotatably connected to the support tube unit 3 through a pin shaft or a rotating shaft.

[0095] As an optional embodiment of the present invention, the pipe support unit 3 includes a small support block 31, a large support block 32, and a guide seat 33; wherein:

[0096] The small support blocks 31 are 1 / 12 circular ring structures, and there are four of them. They are movably connected to the first pull rod 23 through the connecting rod 34. The small support blocks 31 can be expanded outward or retracted inward when the top rod 22 is raised or lowered.

[0097] The large support blocks 32 are 1 / 6 circular ring structures, and there are four of them. They are movably connected to the second pull rod 24 through the connecting rod 34. The large support blocks 32 can be expanded outward or retracted inward when the top rod 22 is raised or lowered.

[0098] When the large support block 32 and the small support block 31 are stretched outward, they can be joined together to form a circle, which is used to support the inner wall of the waterway to be blocked;

[0099] It should be noted that, in this embodiment, the number of connecting rods 34 used to connect the large support block 32 and the small support block 11 is two, one end of the connecting rod 34 is rotatably connected to the large support block 32 or the small support block 31, and can be connected through a pin or a rotating shaft, and the other end of the connecting rod 34 is rotatably connected to the connecting plate 242 of the first pull rod 23 or the second pull rod 24 through a pin or a rotating shaft. Through the above structural setting, a parallelogram connecting rod structure is realized between the large support block 32 and the second pull rod 24, and the small support block 31 and the first pull rod 23.

[0100] When the push rod 22 is lifted and lowered axially, the large support block 32 and the small support block 31 can be expanded or retracted. When expanded, they extend out of the fixed tube 21 and form a ring to abut against the sealing tube wall, and when retracted, they retract into the fixed tube 21.

[0101] The guide seat 33 is provided at the bottom of the push rod 22 , and a guide hole 35 is circumferentially provided on the guide seat 33 for the first connecting rod and the second connecting rod to pass through.

[0102] Through the above structural arrangement, the large support block 32 and the small support block 31 move along the direction of the guide hole 35 when expanding or retracting.

[0103] As an optional embodiment of the present invention, the sealing unit 4 includes a sealing disk 41 and a screw 42; wherein:

[0104] The sealing disk 41 is connected to the top seat 241 via screws 42. Specifically, there are four screws 42, which are evenly arranged along the circumference of the sealing disk 41. The screws 42 pass through the sealing disk 41 and the guide seat 33 in sequence before being connected to the top seat 241.

[0105] The guide seat 33 passes through the screw rod 42 and is placed in the concave cavity 43 of the sealing disk 41 .

[0106] Furthermore, a U-shaped connecting portion 36 is provided on both the large support block 32 and the small support block 31; there is at least one connecting rod 34, one end of which is rotatably connected in the U-shaped connecting portion 36, and the other end is rotatably connected to the first pull rod 23 or the second pull rod 24.

[0107] The plug of the utility model can be quickly disassembled and reused according to use needs, thereby reducing material costs.

[0108] Assembly method:

[0109] When installing the quick-release plug of the present invention, first assemble the large support block 32 and the small support block 31 to the first pull rod 23 and the second pull rod 24 using a pin linkage rod; use four screws 42 to pre-assemble the sealing disk 41 and the guide seat 33, and then connect them to the top seat 241, and tighten the screws 42; then install the first pull rod 23 and the second pull rod 24 on the fixing ring 25 at the end of the top rod 22, and then pass the top rod 22 through the mounting seat 15, pass the clamping column 16 through the top rod 22 and the mounting seat 15, then put on the spring 17, put on the telescopic cylinder 12, and the adjusting cylinder 11; finally, pass the screw 42 through the sealing disk 41 and the guide seat 33 to complete the installation of the main structure.

[0110] Instructions for use:

[0111] 1. After selecting the plug of corresponding diameter according to the size of the hole, rotate the adjusting cylinder 11 to make the clamping column 16 disengage from the locking groove 13, and then pull the adjusting cylinder 11 backward to make the clamping column 16 move along the slide groove 14 to the side away from the sealing unit 4, driving the internal spring 17 to be compressed. After reaching the sealing pipe position, the sealing disk 41 is inserted into the pipe mouth, and then the adjusting cylinder 11 is released. The adjusting cylinder 11 moves forward under the action of the spring 17. When the adjusting cylinder 11 drives the push rod 22 to move, the large support block 32 and the small support block 31 are stretched outward to form a fixing ring, which is clamped on the inner wall of the sealing pipe. At this time, the adjusting cylinder 11 is rotated to make the clamping column 16 fit into the locking groove 13 to realize the position locking of the plug. The internal threaded section at the top of the adjusting cylinder 11 can be connected to an extension rod according to use needs.

[0112] 2. The forward and backward movement of the clamping column 16 drives the first pull rod 23 to move backward synchronously, so that the small support block 31 connected to the first pull rod 23 slides backward synchronously. After sliding to the limit, it starts to drive the second pull rod 24 to move backward synchronously, and at the same time, it also drives the large support block 32 on the second pull rod 24 to start moving backward. The two groups of support blocks move backward and shrink inward synchronously, so that both groups of support blocks are lower than the sealing disk 41. At this time, the plug can be placed in the hole that needs to be blocked.

[0113] 3. Pull and rotate the adjusting cylinder 11. The internal spring 17 resets to generate axial thrust, driving the two sets of support blocks to move to form a circular fixed ring. At this time, the fixed ring is tightly attached to the hole to be blocked to ensure its sealing. The installation is completed.

[0114] The quick-release plug of the utility model is an internally supported quick plug, which can plug the pipeline conveniently and quickly, and can be flexibly adjusted according to the depth of the water channel hole to be firmly connected to the pipeline wall. It is easy and labor-saving to install and has a good sealing effect.

[0115] First of all, it should be noted that “inward” refers to the direction toward the center of the accommodating space, and “outward” refers to the direction away from the center of the accommodating space.

[0116] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate directions or positional relationships based on the attached figures. Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0117] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0118] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0119] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0120] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0121] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A quick-release plug, characterized in that: It includes an adjustment unit, a connecting rod unit, a pipe support unit, and a sealing unit; wherein: The sealing unit is connected to the end of the connecting rod unit to seal the waterway opening; The pipe supporting unit is movably arranged on the connecting rod unit and is located inside the sealing unit. It can be expanded outwards to lock and support the pipe wall or closed inwards to loosen the pipe wall when moving. The adjusting unit is connected to the connecting rod unit and can drive the connecting rod unit to move axially.

2. The quick-release plug according to claim 1, characterized in that: The adjustment unit includes an adjustment cylinder, a telescopic cylinder, a locking groove, a sliding groove, a mounting seat, a clamping column, and a spring; wherein: The lower part of the adjusting cylinder is symmetrically provided with the locking groove opened along the circumferential direction; The telescopic cylinder is sleeved in the adjusting cylinder and can be telescopically moved relative to the adjusting cylinder in the axial direction; The telescopic cylinder is symmetrically provided with the sliding groove opened along the axial direction; The mounting seat is placed in the telescopic cylinder and can move axially relative to the telescopic cylinder; The clamping column is arranged on the mounting seat, and both ends thereof pass through the sliding groove and are engaged with the locking groove; One end of the spring abuts against the mounting seat, and the other end abuts against the top wall of the telescopic cylinder.

3. The quick-release plug according to claim 2, characterized in that: The top of the adjusting cylinder is an open structure, and the inner wall of the open end is provided with an internal thread section, and the extension section is detachably connected to the internal thread section to extend the overall length of the quick-release plug.

4. The quick-release plug according to claim 2, characterized in that: The connecting rod unit includes a fixed cylinder and a push rod, a first pull rod and a second pull rod arranged in the fixed cylinder; wherein: The fixed cylinder is detachably connected to the telescopic cylinder; One end of the push rod is connected to the mounting seat, and the other end is connected to the first pull rod; The second pull rod is sleeved on the end of the top rod and is arranged side by side and staggered with the first pull rod; The pipe supporting unit is connected to the first pull rod and the second pull rod respectively.

5. The quick-release plug according to claim 4, characterized in that: A fixing ring is provided at the end of the push rod; there are four first pull rods, which are evenly spaced and arranged around the fixing ring.

6. The quick-release plug according to claim 5, characterized in that: The first pull rod is a rectangular plate-shaped structure, with a first accommodating groove provided on the outer end surface. At least one first rotating hole is provided on the first pull rod corresponding to the position of the first accommodating groove.

7. The quick-release plug according to claim 5, characterized in that: The second pull rod includes a top seat and a connecting plate connected to the bottom of the top seat; wherein: The top seat is sleeved on the top rod and abuts against the fixing ring; The connecting plates are rectangular plate-shaped structures, and there are four of them, which are evenly arranged along the circumference of the fixing ring, and the connecting plates and the first pull rods are staggered. A second accommodating groove is provided on the outer end surface of the connecting plate; and at least one second rotating hole is provided on the connecting plate at a position corresponding to the second accommodating groove.

8. The quick-release plug according to claim 7, characterized in that: The pipe support unit includes a small support block, a large support block, and a guide seat; wherein: The small support blocks are 1 / 12 circular ring structures, and there are four of them. They are movably connected to the first pull rod through connecting rods. The small support blocks can be expanded outward or retracted inward when the push rod is raised or lowered. The large support blocks are 1 / 6 circular ring structures, and there are four of them, which are movably connected to the second pull rod through a connecting rod. The large support blocks can be expanded outward or retracted inward when the push rod is raised or lowered; The large support block and the small support block can be spliced together to form a circle when they are stretched outwards, so as to be supported on the inner wall of the waterway to be blocked; The guide seat is arranged at the bottom of the push rod, and a guide hole for the first pull rod and the second pull rod to pass through is arranged on the guide seat along the circumferential direction.

9. The quick-release plug according to claim 8, characterized in that: The sealing unit includes a sealing disk and a screw; wherein: The sealing disk is connected to the top seat via the screw; The guide seat passes through the screw and is placed in the concave cavity of the sealing disk.

10. The quick-release plug according to claim 8, characterized in that: The large support block and the small support block are both provided with a U-shaped connecting portion; the number of the connecting rod is at least one, one end of which is rotatably connected in the U-shaped connecting portion, and the other end is rotatably connected to the first pull rod or the second pull rod.

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