Variable-diameter pipeline internal pressure testing device

Abstract

The utility model discloses a diameter-variable pipeline internal pressure testing device, and relates to the technical field of pipeline testing equipment. Through cooperation between the first positioning disc and the movable positioning piece, the movable positioning piece can slide in the open groove of the second positioning disc, and due to the fact that the movable positioning piece is fixedly connected with the pipeline fixing piece, the movable positioning piece can drive the pipeline fixing piece to move in the direction close to the pipeline mounting section or away from the pipeline mounting section; therefore, the device can adapt to internal pressure testing of pipelines with different external diameter specifications. When pipelines with different inner diameters need to be tested, only the inner sealing heads with different inner diameters need to be replaced, additional connection with pipe fittings is not needed, and the testing period is shortened; meanwhile, the structure of the device can be repeatedly applied to the testing process of pipelines of different specifications except for the inner sealing head, the testing cost is reduced, and the applicability of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline testing equipment technical field, specifically, relate to a pipeline internal pressure testing device of variable diameter. BACKGROUND

[0002] At present, the common pipeline pressure testing device is mostly a kind of tool fixture corresponding to one specification outer diameter of pipeline, and different specifications of pipeline need to be made or purchased different fixtures. But in the process of pipeline production, it is very common to produce different specifications of pipeline, which leads to higher cost and narrower applicability of pipeline pressure testing process, causing unnecessary resource waste. In addition, since the inner diameter of the pipeline pressure testing device is also fixed, when testing the pressure resistance of different specifications of pipeline, the corresponding pipe material must be connected in advance, which greatly lengthens the testing period, and limits the use range of the pipeline pressure testing device.

[0003] Therefore, the utility model is provided. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a pipeline internal pressure testing device of variable diameter.

[0005] The utility model is realized as follows:

[0006] Firstly, the utility model provides a pipeline internal pressure testing device of variable diameter, which comprises an inner end socket, a first positioning disc, a second positioning disc, a movable positioning piece and a pipeline fixing piece.

[0007] The inner end socket comprises a pipeline mounting section, the pipeline is configured to be sleeved on the surface of the pipeline mounting section, one end of the pipeline mounting section is a plugging end, and the opposite end is an open end, the plugging end is provided with a mounting column protruding from the surface on the side away from the open end, the first positioning disc and the second positioning disc are sleeved on the mounting column, and the second positioning disc is located in the direction close to the open end.

[0008] The second positioning disc is provided with an opening groove in a radial manner and penetrating the edge of the second positioning disc, the movable positioning piece is installed in the opening groove and is in sliding cooperation with the opening groove, the pipeline fixing piece is fixedly connected with the movable positioning piece, and the pipeline positioning piece is correspondingly and spacedly arranged with the pipeline mounting section of the inner end socket, and the gap between the pipeline fixing piece and the pipeline mounting section is configured to accommodate the pipeline.

[0009] The surface of the first positioning disc close to the second positioning disc is provided with a first positioning part, the surface of the movable positioning piece close to the first positioning disc is provided with a second positioning part, the first positioning part and the second positioning part are positioned in cooperation, and the positioning mode comprises a muscle, slot clamping positioning.

[0010] When the movable positioning member slides in the opening slot, the pipeline fixing member is driven to approach or move away from the pipeline mounting section, so that the pipeline is fixed and taken out.

[0011] Optionally, the first positioning part is a spiral rib, and the second positioning part is a plurality of spaced-apart clamping grooves.

[0012] Optionally, the top surface of each clamping groove is provided with a chamfer.

[0013] Optionally, the opening slot penetrates the upper and lower surfaces of the second positioning disc.

[0014] Optionally, a first sliding groove is arranged on the groove wall of the opening slot, and a second sliding groove is arranged on the movable positioning member, and the first sliding groove and the second sliding groove are in sliding cooperation.

[0015] Optionally, a plurality of reverse teeth are arranged on the side of the pipeline fixing member close to the pipeline mounting section.

[0016] Optionally, the surfaces of the pipeline fixing member and the pipeline mounting section arranged at intervals are arc-shaped.

[0017] Optionally, a sealing groove is arranged on the pipeline mounting section.

[0018] Optionally, a rotating handle is arranged on each of the first positioning disc and the second positioning disc.

[0019] Optionally, the mounting column has a material conveying hole communicating with the pipeline mounting section, and the material conveying hole is selectively blocked by a plug.

[0020] The utility model has the following beneficial effects:

[0021] The utility model provides a pipeline internal pressure testing device of variable diameter, through the cooperation between the first positioning disc and the movable positioning member, the movable positioning member can slide in the opening slot of the second positioning disc, because the movable positioning member and the pipeline fixing member are fixedly connected, the movable positioning member can drive the pipeline fixing member to move towards the pipeline mounting section or away from the pipeline mounting section, so that the internal pressure of the pipeline with different outer diameters can be tested, when the pipeline with different inner diameters needs to be tested, only the inner head with different inner diameters needs to be replaced, and the testing period is shortened without additional connection with the pipe fitting, the testing cost is reduced, and the applicability of the device is improved. DRAWINGS

[0022] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the premise of the drawings.

[0023] Figure 1 The structural section view of the variable-diameter pipeline internal pressure testing device provided by the first embodiment of the present application during the testing process;

[0024] Figure 2 The structural schematic view of the variable-diameter pipeline internal pressure testing device provided by the first embodiment of the present application;

[0025] Figure 3 The structural schematic view of the internal sealing head provided by the first embodiment of the present application;

[0026] Figure 4 The structural schematic view of the first positioning disc provided by the first embodiment of the present application;

[0027] Figure 5 The structural schematic view of the second positioning disc provided by the first embodiment of the present application;

[0028] Figure 6 The installation process schematic view of the variable-diameter pipeline internal pressure testing device provided by the first embodiment of the present application;

[0029] Figure 7 The structural schematic view of the connection between the movable positioning member and the pipeline fixing member provided by the first embodiment of the present application;

[0030] Figure 8 The structural schematic view of the connection between the movable positioning member and the pipeline fixing member provided by the first embodiment of the present application;

[0031] Figure 9 The structural schematic view of the connection between the variable-diameter pipeline internal pressure testing device and the pipeline provided by the first embodiment of the present application.

[0032] Main element symbol explanation: 100 - variable diameter pipeline internal pressure testing device; 110 - internal head; 111 - pipeline mounting section; 1111 - sealing groove; 112 - plugging end; 113 - open end; 114 - mounting column; 115 - material conveying channel; 120 - first positioning disc; 121 - rib; 130 - second positioning disc; 131 - opening groove; 132 - first sliding groove; 140 - movable positioning piece; 141 - second sliding groove; 142 - clamping groove; 150 - pipeline fixing piece; 151 - reverse tooth; 161 - nut; 162 - screw; 163 - rotating handle; 164 - sealing ring; 200 - pipeline. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the drawings in the embodiments of the present application will be described below, and the technical scheme in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0035] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0036] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0037] Furthermore, the terms "horizontal," "vertical," and the like are used as terms of convenience to provide reference points, and are not intended to limit the devices to an absolute horizontal or vertical orientation, but rather can be slightly inclined. As such, "horizontal" merely refers to a more horizontal orientation than "vertical," and does not require that the structure be perfectly horizontal, but rather can be slightly inclined.

[0038] In the description of the utility model, need explain further, unless have explicit stipulation and limitation, term " set up ", " install ", " link ", " connect " should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can through intermediate medium indirectly connect, can be two element inside intercommunication. For ordinary skilled in the art, can understand the concrete meaning of above-mentioned term in the utility model with specific circumstances.

[0039] First embodiment

[0040] Please refer to Figure 1 and Figure 2 The embodiment provides a variable-diameter pipeline internal pressure testing device 100, which comprises an inner head 110, a first positioning disc 120, a second positioning disc 130, a movable positioning piece 140 and a pipeline fixing piece 150.

[0041] Please refer to Figure 3 The inner head 110 comprises a pipeline mounting section 111, and the pipeline 200 is configured to be sleeved on the surface of the pipeline mounting section 111, so that, in the embodiment, a sealing groove 1111 is arranged on the pipeline mounting section 111, so that, after the pipeline 200 is installed, the pipeline 200 and the inner head 110 are in sealed connection, so as to ensure the smooth progress of the internal pressure testing process of the pipeline 200.

[0042] In the embodiment, in order to ensure the sealed connection between the pipeline 200 and the inner head 110, the sealing groove 1111 is two, and the two sealing grooves 1111 are arranged at intervals on the surface of the pipeline mounting section 111, and each sealing groove 1111 accommodates a sealing ring 164.

[0043] One end of the pipeline mounting section 111 is a plugging end 112, and the opposite end is an open end 113, the pipeline 200 is sleeved on the surface of the pipeline mounting section 111 from the open end 113 until the end face of the pipeline 200 abuts against the plugging end 112, and the pipeline 200 cannot continue to advance, then it is proved that the pipeline 200 is installed in place.

[0044] Therefore, the end face of the plugging end 112 is a closed structure, and the end face of the open end 113 is in an open state.

[0045] Since the pipeline 200 needs to discharge the excess gas in the pipeline 200 in advance before the internal pressure test, the pipeline 200 needs to be filled with gas or liquid to meet the test requirements during the internal pressure test, and the gas or liquid in the pipeline 200 needs to be discharged after the test is completed. Therefore, in order to facilitate the implementation of the above process, the plugging end 112 is further designed with a flow channel in communication with the pipeline mounting section 111.

[0046] Please refer to Figure 1 In the embodiment, the plugging end 112 is provided with a mounting column 114 protruding from the surface on the side away from the opening end 113, and the flow channel is located in the mounting column 114, and the material conveying hole 115 is in communication with the pipeline mounting section 111, and the material conveying hole 115 is selectively plugged by the plug.

[0047] Please refer to Figure 2 Further, the mounting column 114 can also serve as a positioning and mounting structure of the first positioning disc 120 and the second positioning disc 130. In the embodiment, the positioning of the first positioning disc 120 and the second positioning disc 130 on the mounting column 114 can be fixed by the screw 162 and the nut 161, so as to avoid the first positioning disc 120 and the second positioning disc 130 from slipping off the mounting column 114, and to ensure that the first positioning disc 120 and the second positioning disc 130 can rotate relative to the mounting column 114.

[0048] Please refer to Figure 4 and Figure 5 In the embodiment, the first positioning disc 120 and the second positioning disc 130 are both provided with a through center hole at the center, so that the first positioning disc 120 and the second positioning disc 130 are both sleeved on the mounting column 114, and the second positioning disc 130 is located in the direction close to the opening end 113.

[0049] Since the second positioning disc 130 is a structure for cooperating with the movable positioning member 140 and the pipeline fixing member 150, and the pipeline fixing member 150 is used for fixing the pipeline 200, and the pipeline 200 is sleeved on the surface of the pipeline mounting section 111, it is necessary to set the second positioning disc 130 in the direction close to the opening end 113 of the inner end cover 110.

[0050] Specifically, the structure of the second positioning disc 130 for cooperating with the movable positioning member 140 and the pipeline fixing member 150 is as follows:

[0051] Please refer to Figure 5 The second positioning disc 130 is provided with a plurality of opening grooves 131 which are radially arranged and penetrate the edge of the second positioning disc 130. In the embodiment, the number of the opening grooves 131 is three, and the three opening grooves 131 are uniformly and spacedly arranged on the second positioning disc 130 and radially extend along the center.

[0052] In the embodiment, the opening groove 131 is not through the center hole of the second positioning disc 130, but is through the side surface of the second positioning disc 130.

[0053] Please refer to Figure 6 The movable positioning member 140 is installed in the opening groove 131 and is in sliding fit with the opening groove 131. The opening groove 131 is designed so that when the movable positioning member 140 slides in the opening groove 131, the movable positioning member 140 can selectively extend beyond the edge of the second positioning disc 130, while limiting the farthest distance of the movable positioning member 140 moving towards the center hole of the second positioning disc 130, avoiding mutual contact of the plurality of movable positioning members 140.

[0054] Please refer to Figure 7 and Figure 8 The pipe fixing member 150 is fixedly connected with the movable positioning member 140, and when the movable positioning member 140 slides in the opening groove 131, the pipe fixing member 150 can be driven to move synchronously. The pipe positioning member is arranged in correspondence with the pipe mounting section 111 of the inner head 110 at intervals, and the gap between the pipe fixing member 150 and the pipe mounting section 111 is configured to accommodate the pipe 200.

[0055] Since the movable positioning member 140 slides in the opening groove 131 and drives the pipe fixing member 150 to move towards the pipe mounting section 111 or away from the pipe mounting section 111, the gap between the pipe fixing member 150 and the pipe mounting section 111 can be changed, thereby adapting to pipes 200 of different outer diameters for internal pressure testing of the pipe 200.

[0056] In the embodiment, in order to facilitate the fixed connection of the pipe fixing member 150 and the movable positioning member 140, and to realize the corresponding interval arrangement of the pipe fixing member 150 and the pipe mounting section 111 of the inner head 110, the overall structure of the pipe fixing member 150 is approximately "L" shaped.

[0057] In the embodiment, the surface of the side of the pipe fixing member 150 close to the pipe mounting section 111 is provided with a plurality of reverse teeth 151, which can be tightly connected with the pipe 200 to prevent the pipe 200 from slipping off.

[0058] In the embodiment, in order to ensure that the pipe fixing member 150 can better fix the pipe 200, the surface between the pipe fixing member 150 and the pipe mounting section 111 is arc-shaped, so that the pipe fixing member 150 can better adapt to the shape of the surface of the pipe 200.

[0059] In the embodiment, the number of the opening slots 131 on the second positioning disc 130 is three, and the number of the movable positioning members 140 is also three, each of which is accommodated in each of the opening slots 131. Further, the number of the pipe fixing members 150 is also three, each of which is fixedly connected with each of the movable positioning members 140.

[0060] In the embodiment, the opening slots 131 pass through the upper and lower surfaces of the second positioning disc 130 (i.e. the upper and lower disc surfaces of the second positioning disc 130), so that the sliding process of the movable positioning members 140 is smoother. In other embodiments, the opening slots 131 can be only slotted on one of the disc surfaces of the second positioning disc 130, and do not pass through the other disc surface, as long as the sliding process of the movable positioning members 140 can be realized.

[0061] Similarly, it can be understood that the number of the opening slots 131 on the second positioning disc 130 can also be adjusted according to the situation, for example, it can be two, four, five, six or more, as long as its function can be realized, and the embodiment does not limit this.

[0062] In the embodiment, the opening slots 131 are generally rectangular, and are provided with chamfers in the direction close to the central hole of the second positioning disc 130. In other embodiments, the shape of the opening slots 131 can also be triangular, sectorial, etc., as long as its function can be realized, and the embodiment does not limit this.

[0063] In the embodiment, the first sliding groove 132 is provided on the slot wall of the opening slot 131, and the second sliding groove 141 is provided on the movable positioning member 140, and the first sliding groove 132 and the second sliding groove 141 are in sliding fit. In other embodiments, the opening slot 131 and the movable positioning member 140 can also be realized by sliding groove and sliding block and other sliding fit structures.

[0064] Further, in order to control the sliding process of the movable positioning member 140 in the opening slot 131 of the second positioning disc 130, the first positioning disc 120 is provided with a first positioning part close to the surface of the second positioning disc 130, and the movable positioning member 140 is provided with a second positioning part close to the surface of the first positioning disc 120, the first positioning part and the second positioning part are in fit positioning, and the positioning mode includes muscle, slot clamping positioning.

[0065] In the embodiment, the first positioning part is a spiral rib 121, and the second positioning part is a plurality of spaced apart clamping grooves 142. By clamping groove 142 and spiral rib 121, the movement of the movable positioning member 140 in the opening slot 131 and the fixed connection of the pipe fixing member 150 and the pipe 200 are realized.

[0066] Specifically, by rotating the first positioning disc 120, the plurality of spaced-apart clamping grooves 142 on the movable positioning member 140 will be in rotational contact with the helical ribs 121 of the first positioning portion, thereby realizing the sliding process of the movable positioning member 140 in the open slot 131.

[0067] In the present embodiment, the first positioning disc 120 and the second positioning disc 130 are both provided with rotating handles 163. By rotating the rotating handles 163, the rotation of the first positioning disc 120 and the second positioning disc 130 is realized, and then the helical ribs 121 of the first positioning portion are in rotational contact with the plurality of spaced-apart clamping grooves 142 on the movable positioning member 140, thereby facilitating the sliding process of the movable positioning member 140 in the open slot 131.

[0068] In the present embodiment, the number of rotating handles 163 on the first positioning disc 120 and the second positioning disc 130 is three, and they are uniformly spaced apart.

[0069] In the present embodiment, in order to ensure the smooth sliding process of the movable positioning member 140 in the open slot 131, the parameters of the clamping grooves 142 and the ribs 121 need to be designed in coordination, for example, the distance between the adjacent two clamping grooves 142 is the same as the distance between the adjacent two ribs 121; each rib 121 can be accommodated in the clamping groove 142.

[0070] In the present embodiment, the top surface of each clamping groove 142 is provided with a chamfer, so as to facilitate the clamping of the helical ribs 121 into the clamping grooves 142.

[0071] The present embodiment provides a variable-diameter pipeline internal pressure testing device 100, and the installation process and working principle thereof are as follows:

[0072] Please refer to Figure 1 , Figure 6 and Figure 9, first, the sealing ring 164 is sleeved on the sealing groove 1111 of the pipeline mounting section 111 of the inner sealing head 110; the movable positioning member 140 and the pipeline fixing member 150 are fixedly connected (for example, through rivets or are made into an integrated structure), then the second positioning disc 130 is sleeved on the mounting column 114 of the inner sealing head 110 through the central hole thereof, the movable positioning member 140 is installed in the open groove 131 of the second positioning disc 130, and the extending direction of the pipeline fixing member 150 is ensured to be directed to the direction of the pipeline mounting section 111. Then the first positioning disc 120 is sleeved on the mounting column 114 of the inner sealing head 110 through the central hole thereof, the helical rib 121 on one side of the first positioning disc 120 is placed in the clamping groove 142 on the surface of the movable positioning member 140, and then the first positioning disc 120 and the second positioning disc 130 are positioned on the mounting column 114 through the screw 162 and the nut 161, but it is ensured that the first positioning disc 120 and the second positioning disc 130 can rotate relative to the mounting column 114.

[0073] When it is necessary to install the pipeline 200, the rotating handle 163 of the first positioning disc 120 and / or the second positioning disc 130 is rotated, so that the movable positioning member 140 moves away from the central hole of the second positioning disc 130, the movable positioning member 140 drives the pipeline fixing member 150 to move, so that the gap between the pipeline fixing member 150 and the pipeline mounting section 111 is increased, and the pipeline 200 is sleeved on the surface of the pipeline mounting section 111. When the pipeline 200 is installed, the rotating handle 163 of the first positioning disc 120 and / or the second positioning disc 130 is reversely rotated (if the first positioning disc 120 is rotated before, the second positioning disc 130 is reversely rotated here to ensure that the movable positioning member 140 returns), the movable positioning member 140 moves towards the central hole of the second positioning disc 130, the movable positioning member 140 drives the pipeline fixing member 150 to move, so that the gap between the pipeline fixing member 150 and the pipeline mounting section 111 is reduced, until the pipeline fixing member 150 is in contact with the outer surface of the pipeline 200, and the reverse tooth 151 on the pipeline fixing member 150 is clamped into the pipeline 200, so that the pipeline 200 is fixed.

[0074] After the pipeline 200 is fixed, the plug in the material conveying hole 115 on the mounting column 114 can be opened, the excess air in the pipeline 200 is discharged, then water or gas is injected into the pipeline 200, and internal pressure test is performed. After the test is completed, the plug is opened, the water or gas in the pipeline 200 is discharged, then the rotating handle 163 of the first positioning disc 120 and / or the second positioning disc 130 is rotated, so that the movable positioning member 140 moves away from the central hole of the second positioning disc 130, the movable positioning member 140 drives the pipeline fixing member 150 to move, so that the gap between the pipeline fixing member 150 and the pipeline mounting section 111 is increased, and the pipeline 200 is taken out.

[0075] By rotating the rotating handle 163 of the first positioning disc 120 and / or the second positioning disc 130, the gap between the pipe fixing member 150 and the pipe mounting section 111 can be controlled, and the testing process of the pipe 200 with different outer diameters can be adapted. When the pipe 200 with different inner diameters needs to be tested, the inner end cover 110 with different inner diameters can be directly replaced, and the first positioning disc 120, the second positioning disc 130, the movable positioning member 140 and the pipe fixing member 150 can be applied to the inner end cover 110 structures with different inner diameters.

[0076] The preferred embodiments of the present application have been described above by way of example only, not for limitation, and various changes and modifications can be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A variable diameter in-line pipe pressure testing device, characterized by, The inner sealing head, the first positioning disc, the second positioning disc, the movable positioning member and the pipeline fixing member are included. The inner sealing head includes a pipeline mounting section, a pipeline is configured to be sleeved on the surface of the pipeline mounting section, one end of the pipeline mounting section is a blocking end, the opposite end is an open end, the blocking end is provided with a mounting column protruding from the surface on the side away from the open end, the first positioning disc and the second positioning disc are sleeved on the mounting column, and the second positioning disc is located in the direction close to the open end. The second positioning disc is provided with an opening groove in a radial manner and penetrating the edge of the second positioning disc, the movable positioning member is installed in the opening groove and is in sliding fit with the opening groove, the pipeline fixing member is fixedly connected with the movable positioning member, and the pipeline positioning member is correspondingly and spacedly arranged with the pipeline mounting section of the inner sealing head, and the gap between the pipeline fixing member and the pipeline mounting section is configured to accommodate the pipeline. The surface of the first positioning disc close to the second positioning disc is provided with a first positioning part, the surface of the movable positioning member close to the first positioning disc is provided with a second positioning part, the first positioning part and the second positioning part are in positioning fit, and the positioning mode includes rib and groove clamping positioning. When the movable positioning member slides in the opening groove, the pipeline fixing member is driven to be close to or away from the pipeline mounting section to realize the fixing and taking out of the pipeline.

2. The apparatus of claim 1, wherein, The first positioning part is a spiral rib, and the second positioning part is a plurality of spacedly arranged clamping grooves.

3. The apparatus of claim 2, wherein, The top surface of each clamping groove is provided with a chamfer.

4. The apparatus of claim 1, wherein, The opening groove penetrates the upper and lower surfaces of the second positioning disc.

5. The apparatus of claim 1, wherein, The groove wall of the opening groove is provided with a first sliding groove, and the movable positioning member is provided with a second sliding groove, and the first sliding groove and the second sliding groove are in sliding fit.

6. The apparatus of claim 1, wherein, The side of the pipeline fixing member close to the pipeline mounting section is provided with a plurality of reverse teeth.

7. The apparatus of claim 1, wherein, The surface of the pipeline fixing member spacedly arranged with the pipeline mounting section is arc-shaped.

8. The apparatus of claim 1, wherein, The pipeline mounting section is provided with a sealing groove.

9. The apparatus of claim 1, wherein, The first positioning disc and the second positioning disc are both provided with a rotating handle.

10. The apparatus of claim 1, wherein, The mounting column has a material conveying hole communicating with the pipeline mounting section, and the material conveying hole is selectively blocked by a plug.

Images