Portable choke plug

Abstract

The invention discloses a portable choke plug which comprises a shell, a control assembly and a plurality of clamping pieces. The control assembly comprises a control rod and a linkage table, and the control rod is in threaded fit with the linkage table; the control rod is rotatably arranged on the shell, and the control end of the control rod extends out of the shell; a plurality of guide grooves are formed in the outer wall of the linkage table and incline in the same axial direction. A plurality of penetrating holes are formed in the outer wall of the shell in the circumferential direction, one ends of the multiple clamping pieces are arranged in the penetrating holes in a penetrating mode in a one-to-one correspondence mode, and the other ends of the multiple clamping pieces are matched with the multiple guide grooves in the linkage table respectively; a plurality of clamping grooves are formed in a port of the pipeline, and the clamping grooves are in butt joint with the clamping pieces in a one-to-one mode. A port of a blocked pipeline can be quickly opened, and operation is convenient and fast.

Description

Technical Field

[0001] The invention relates to a blocking structure, in particular to a convenient blind plug. Background Art

[0002] A removable sealing structure is generally required at the end of a circular pipe to block or seal the pipe end. However, when the pipe needs to be opened, the sealing structure must be removed to open the pipe end. Therefore, the ease of assembly and disassembly and the robustness of the sealing structure at the pipe end are particularly important. The prior art lacks a sealing structure that is easily assembled and disassembled, which makes it difficult to quickly open and seal the end of a circular pipe. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a convenient blind head that can quickly open a port that blocks a pipeline and is easy to operate.

[0004] The purpose of the present invention is achieved through the following technical solutions:

[0005] A convenient bulkhead, comprising a shell, a control assembly and a plurality of clamping parts;

[0006] The control assembly includes a control rod and a linkage platform, wherein the control rod and the linkage platform are threadedly engaged with each other; the control rod is rotatably arranged on the housing, and the control end of the control rod extends out of the housing; the outer wall of the linkage platform is provided with a plurality of guide grooves, each of which is inclined along the same axial direction;

[0007] The outer wall of the shell is provided with a plurality of through holes along the circumferential direction, one end of the plurality of clamping members is correspondingly inserted into the plurality of through holes, and the other ends of the plurality of clamping members are respectively engaged with the plurality of guide grooves on the linkage table;

[0008] The port of the pipeline is provided with a plurality of slots, and the plurality of slots are connected one by one with the plurality of clamping members.

[0009] The working principle of the above-mentioned convenient bulkhead is:

[0010] When the port of a pipe needs to be sealed, the portable plug of the present invention is plugged into the port, and then the operating lever is rotated. The threaded engagement between the operating lever and the linkage platform causes the linkage platform to move axially, so that each clamping member, under the guidance of the guide groove of the linkage platform, drives each clamping member to extend radially outward and finally insert into the slot on the port of the pipe, completing the sealing of the pipe port. Similarly, when the plug needs to be removed, the operating lever is rotated in the opposite direction, driving the linkage platform to move in the opposite axial direction and causing each clamping member to move radially inward, finally causing each clamping member to leave the slot on the port of the pipe, completing the removal of the plug.

[0011] According to a preferred embodiment of the present invention, the shell includes an outer shell and an inner frame; the inner frame is connected to the side of the outer shell facing the port, and when the shell is assembled at the port, the inner frame is located in the pipe, and the outer shell is adapted to the inner diameter of the port to achieve sealing of the port.

[0012] Preferably, the control rod is rotatably connected to the outer shell and the inner frame, the control end of the control rod extends to the outside after passing through the outer shell, the linkage platform is located between the outer shell and the inner frame, and the control rod, the linkage platform and the shell are coaxial.

[0013] Preferably, the inner frame is tapered, with a larger end of the inner frame connected to the outer shell, a smaller end of the inner frame extending inward, and a reinforcement portion is provided inside the inner frame.

[0014] According to a preferred embodiment of the present invention, the linkage platform is in the shape of a frustum.

[0015] According to a preferred embodiment of the present invention, the shell further comprises a plurality of fixing brackets, one end of each of the fixing brackets is connected to the outer shell, and the other end extends axially toward one side of the inner frame, and each of the fixing brackets is provided with an avoidance hole; the clamping member is inserted into the avoidance hole of the fixing bracket.

[0016] According to a preferred embodiment of the present invention, the clamping member includes a linkage rod, a connecting plate and a clamping portion; the linkage rod is connected to the connecting plate, and the linkage rod extends radially toward a side close to the linkage platform, and the linkage rod is guided and cooperated with the linkage platform; the connecting plate is fan-shaped, and the clamping portion is located at the outer diameter of the connecting plate.

[0017] Preferably, the clamping portion includes a plurality of clamping protrusions, and the plurality of clamping protrusions are arranged at intervals; a plurality of clamping slots are provided at the port, and each of the clamping slots is matched with each of the clamping protrusions one by one.

[0018] Preferably, a reinforcement gap is provided between the clamping parts of two adjacent clamping members; the shell is provided with a protruding part in the reinforcement gap, and a locking part is provided at the port of the pipeline corresponding to the protruding part; the protruding part and the locking part are locked and connected by a locking structure.

[0019] According to a preferred embodiment of the present invention, the slot is wedge-shaped; and the end of the clamping member that is connected to the slot matches the slot.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention achieves the clamping or separation of the clamping member and the slot on the pipe port by rotating the operating lever and utilizing the linkage platform to drive each clamping member, thereby achieving the sealing or removal of the bulkhead and the pipe port, and is convenient and simple to operate. In addition, the port is provided with a slot that cooperates with the clamping member, and the clamping member is locked by the linkage platform. When the linkage platform remains in place, the clamping member will not move, thus achieving good clamping stability between the clamping member and the slot, which is conducive to improving the firmness between the bulkhead and the port. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a cross-sectional schematic diagram of a convenient bulkhead of the present invention.

[0023] Figure 2 for Figure 1 The diagram on the right.

[0024] Figure 3 for Figure 2 A schematic diagram showing one of the clamping parts with the line bolded for easier reference. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to examples and drawings, but the embodiments of the present invention are not limited thereto.

[0026] See also Figure 1-Figure 3 The present embodiment discloses a convenient blind plug, comprising a housing, a control assembly, and a plurality of clamping members 7. The control assembly comprises a control rod 6 and a linkage platform 8, wherein the control rod 6 and the linkage platform 8 are threadedly engaged with each other; the control rod 6 is rotatably mounted on the housing, and the control end of the control rod 6 extends out of the housing. A plurality of guide grooves 9 are provided on the outer wall of the linkage platform 8, each of which is inclined in the same axial direction, i.e., the distance between the guide groove 9 and the pipeline axis gradually decreases or increases from the inside to the outside in the axial direction; specifically, the distance between the guide groove 9 and the pipeline axis in the present embodiment gradually decreases from the inside to the outside in the axial direction.

[0027] The outer wall of the shell is provided with a plurality of through holes 21 along the circumferential direction, and one end of the plurality of clamping members 7 is correspondingly penetrated into the plurality of through holes 21, and the other ends of the plurality of clamping members 7 are respectively matched with the plurality of guide grooves 9 on the linkage platform 8; the port of the pipeline is provided with a plurality of clamping grooves 13, and the plurality of clamping grooves 13 are connected with the plurality of clamping members 7 one by one.

[0028] Furthermore, the housing of this embodiment includes an outer shell 1 and an inner frame 2. The inner frame 2 is connected to the side of the outer shell 1 facing the port. When the housing is assembled at the port, the inner frame 2 is located within the pipe. The outer shell 1 is adapted to the inner diameter of the port to achieve port sealing. In addition, a first sealing ring 14 is provided on the side of the outer shell 1 facing the port of the pipe in this embodiment, so that when the bulkhead is locked at the port, the sealing of the port can be improved.

[0029] Furthermore, to achieve rotatable control lever 6, in this embodiment, the control lever 6 has rotational connections with both the outer shell 1 and the inner frame 2. The control end of the control lever 6 extends through the outer shell 1 to the outside, and the linkage platform 8 is located between the outer shell 1 and the inner frame 2. The control lever 6, the linkage platform 8, and the housing are coaxial. To achieve rotational connection between the control lever 6 and the outer shell 1 and the inner frame 2, in this embodiment, bearings 20 are provided between the control lever 6 and the outer shell 1, and between the control lever 6 and the inner frame 2. The control end of the control lever 6 in this embodiment is specifically a handle, which facilitates rotational operation.

[0030] Furthermore, in this embodiment, the control rod 6 is provided with a threaded section, and the linkage platform 8 is provided with a threaded hole, which cooperates to achieve threaded engagement between the control rod 6 and the linkage platform 8. Furthermore, a second sealing ring 15 is provided between the control rod 6 and the housing 1, and a third sealing ring 16 is provided between the control rod 6 and the linkage platform 8. These sealing rings can improve the sealing performance of the bulkhead.

[0031] The inner frame 2 is tapered, with its larger end connected to the outer shell 1 and its smaller end extending inward. A reinforcement portion 3 is also provided within the inner frame 2. The tapered structure of the inner frame 2 creates a gradually shrinking structure, facilitating insertion into the port of the pipe. It also creates a accommodating space between the inner frame 2 and the outer shell 1, facilitating the placement of components such as the clamping member 7, linkage platform 8, and control lever 6.

[0032] The linkage platform 8 is shaped like a frustum. Furthermore, the linkage platform 8 of this embodiment can be configured as a truncated cone, a truncated pyramid, or other structures, allowing for flexible configuration based on practical needs. The frustum allows the outer wall of the linkage platform 8 to have a certain inclination angle, making it easier to machine the guide grooves 9 on the linkage platform 8. Combined with the structure of the linkage platform 8 itself, it also enables radial expansion and contraction of each clamping member 7.

[0033] The housing further includes a plurality of fixing brackets 4, each of which has one end connected to the outer shell 1 and the other end extending axially toward one side of the inner frame 2. Each fixing bracket 4 is provided with a clearance hole 5. A clamping member 7 is inserted through the clearance hole 5 of the fixing bracket 4. The provision of the fixing brackets 4 further improves the stability of the clamping member 7, providing support and a position-limiting function for the clamping member 7.

[0034] The cooperation between the clamping member 7 of this embodiment and the guide groove 9 on the linkage table 8 can refer to various linear guide structures in the prior art. For example, a guide block matching the guide groove 9 can be provided at the end of the clamping member 7, and the guide block is limited in the guide groove 9 and can slide in the guide groove 9.

[0035] The clamping member 7 of this embodiment includes a linkage rod 17, a connecting plate 18 and a clamping portion 19; the linkage rod 17 is connected to the connecting plate 18, and the linkage rod 17 extends radially toward the side close to the linkage platform 8, and the linkage rod 17 is guided and matched with the linkage platform 8; the connecting plate 18 is fan-shaped, and the clamping portion 19 is located at the outer diameter of the connecting plate 18.

[0036] In this embodiment, there are multiple clamping members 7, and since the connecting plates 18 of the clamping members 7 are arranged in a fan shape, the multiple clamping members 7 are arranged at equal intervals along the circumferential direction and basically combined to form a full circular structure, so that the clamping portions 19 on each clamping member 7 can form a basically complete circumferential clamping structure, thereby achieving a more reliable and firm clamping and sealing effect on the port of the pipeline.

[0037] Furthermore, the clamping portion 19 includes a plurality of clamping protrusions, which are arranged at intervals; a plurality of clamping slots 13 are provided at the port, and each clamping slot 13 is matched with each clamping protrusion one by one.

[0038] A reinforcement gap is provided between the clamping parts 19 of two adjacent clamping members 7; the shell 1 of the housing is provided with a protruding part 10 in the reinforcement gap, and a locking part 11 is provided at the port of the pipeline corresponding to the protruding part 10; the protruding part 10 and the locking part 11 are locked and connected by a locking structure.

[0039] Furthermore, through holes may be provided on the extension portion 10 and the locking portion 11, and the locking structure may use bolts 12 and nuts, thereby further reinforcing and locking the shell and the port of the pipeline to improve firmness.

[0040] The clamping slot 13 of this embodiment is wedge-shaped; the end of the clamping member 7 that is connected to the clamping slot 13 matches the clamping slot 13.

[0041] See also Figure 1-Figure 3 The working principle of the portable bulkhead of this embodiment is:

[0042] When it is necessary to seal the port of a pipe, the portable plug of the present invention is docked and inserted into the port, and then the operating lever 6 is rotated. The threaded fit between the operating lever 6 and the linkage platform 8 is utilized to cause the linkage platform 8 to move axially, so that each clamping member 7 is guided by the guide groove 9 of the linkage platform 8, driving each clamping member 7 to extend radially outward, and finally inserted into the groove 13 on the port of the pipe, completing the port sealing of the pipe. Similarly, when it is necessary to remove the plug, the operating lever 6 is rotated in the opposite direction, driving the linkage platform 8 to move in the opposite axial direction, and causing each clamping member 7 to move radially inward, finally causing each clamping member 7 to leave the groove 13 on the port of the pipe, completing the removal of the plug.

[0043] The above is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited to the above content. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principles of the present invention should be considered as equivalent replacement methods and are included in the scope of protection of the present invention.

Claims

1. A portable bulkhead, characterized in that: It includes a housing, a control assembly and a plurality of clamping parts; The control assembly includes a control rod and a linkage platform, wherein the control rod and the linkage platform are threadedly matched; the control rod is rotatably arranged on the housing, and the control end of the control rod extends out of the housing; the outer wall of the linkage platform is provided with a plurality of guide grooves, and each of the guide grooves is inclined along the same axial direction; The outer wall of the shell is provided with a plurality of through holes along the circumferential direction, one end of the plurality of clamping members is correspondingly inserted into the plurality of through holes, and the other ends of the plurality of clamping members are respectively matched with the plurality of guide grooves on the linkage table; The port of the pipeline is provided with a plurality of clamping grooves, and the plurality of clamping grooves are connected one by one with the plurality of clamping members.

2. The portable bulkhead according to claim 1, characterized in that: The shell includes an outer shell and an inner frame; the inner frame is connected to the side of the outer shell facing the port, and when the shell is assembled at the port, the inner frame is located in the pipeline, and the outer shell is adapted to the inner diameter of the port to achieve blocking of the port.

3. The portable bulkhead according to claim 2, characterized in that: The control rod is rotatably connected to the outer shell and the inner frame, the control end of the control rod passes through the outer shell and extends to the outside, the linkage platform is located between the outer shell and the inner frame, and the control rod, the linkage platform and the shell are coaxial.

4. The portable bulkhead according to claim 2 or 3, characterized in that: The inner frame is tapered, and the larger end of the inner frame is connected to the outer shell, and the smaller end of the inner frame extends inwardly. A reinforcement part is also provided inside the inner frame.

5. The portable bulkhead according to claim 1, characterized in that: The linkage platform is in a frustum shape.

6. The portable bulkhead according to claim 2, characterized in that: The shell also includes a plurality of fixing brackets, one end of each of which is connected to the outer shell and the other end of which extends axially toward one side of the inner frame, and each of the fixing brackets is provided with an avoidance hole; the clamping member is inserted into the avoidance hole of the fixing bracket.

7. The portable bulkhead according to claim 1, 2, 3, 5 or 6, characterized in that: The clamping member includes a linkage rod, a connecting plate and a clamping portion; the linkage rod is connected to the connecting plate, and the linkage rod radially extends to a side close to the linkage platform, and the linkage rod cooperates with the linkage platform guide; the connecting plate is fan-shaped, and the clamping portion is located at the outer diameter of the connecting plate.

8. The portable bulkhead according to claim 7, characterized in that: The clamping portion comprises a plurality of clamping protrusions, and the plurality of clamping protrusions are arranged at intervals; a plurality of clamping slots are provided at the port, and each of the clamping slots is matched with each of the clamping protrusions one by one.

9. The portable bulkhead according to claim 7, characterized in that: A reinforcement gap is provided between the clamping parts of two adjacent clamping members; a protruding part is provided in the reinforcement gap, and a locking part is provided at the port of the pipeline corresponding to the protruding part; the protruding part and the locking part are locked and connected by a locking structure.

10. The portable bulkhead according to claim 1, 2, 3, 5 or 6, characterized in that: The clamping slot is wedge-shaped; one end of the clamping piece that is butted against the clamping slot matches the clamping slot.

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