Heat supply pipeline pressure test blind plate

Abstract

The heat supply pipeline pressure test blind plate comprises a main body, a blind plate assembly and a pressing mechanism, the main body comprises a mounting pipe, the side wall of the mounting pipe is fixedly connected with two sets of connecting plates, the two sets of connecting plates are arranged in an up-down opposite mode, the two sets of connecting plates are matched with fixing columns, and the fixing columns are fixedly connected with the two sets of connecting plates and penetrate through the two sets of connecting plates; the top of the fixed column is rotatably connected with a rotating column, the side wall of the rotating column is fixedly connected with a connecting beam, the side, away from the rotating column, of the connecting beam is fixedly connected with a connecting cylinder, the top of the connecting cylinder is fixedly connected with a shell, and the blind plate assembly comprises a threaded rotating cylinder. According to the device, the blind plate can rapidly press and seal the mounting pipe by rotating the first-stage rotating disc, the second-stage rotating disc can be continuously rotated after the mounting pipe is pressed by the blind plate so that the threaded rod can further press the blind plate downwards, and compared with an existing device, the sealing effect can be further guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of pipelines, in particular to a pressure test blind plate for a heating pipeline. Background Art

[0002] The heating pipe pressure test blind plate is a device used to seal the end of the pipe during the pressure test of the heating pipe. Its main function is to prevent leakage during the pressure test and cause damage to the equipment and the environment.

[0003] Publication number CN219013683U discloses a blind plate for pressure testing a heating pipe, comprising a blind plate body, a clamping member, and an annular member. The top surface of the blind plate body is fixedly connected to the clamping member, which is also fixedly connected to the annular member. The annular member includes a ring body, and the blind plate body is positioned between the ring body and the clamping member. The central axis of the blind plate body and the central axis of the ring body are collinear. The clamping member includes a handwheel, a threaded support rod, a connecting seat, a threaded bracket, and connecting ribs. The design of the annular member, blind plate body, and clamping member eliminates the need for workers to repeatedly align the relative welding positions of the pressure test blind plate and the heating pipe.

[0004] The above device has the following defects: the device only presses the blind plate body component against the pipeline for sealing by rotating the threaded support rod. When the threaded support rod rotates, the blind plate body component will be driven to rotate. When the blind plate body component is in contact with the end of the pipeline, friction will be generated between the blind plate body component and the pipeline, making it difficult for the threaded support rod to continue to rotate, and the sealing effect of the blind plate body component on the pipeline cannot be ensured. In view of this, a heating pipeline pressure test blind plate is proposed. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0006] In view of the above-mentioned problem of the blind plate for pressure testing of heating pipelines, the present utility model is proposed.

[0007] Therefore, the purpose of the present invention is to provide a heating pipeline pressure test blind plate, which is used to solve the problems that the existing device is difficult to ensure the sealing effect.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: a heating pipeline pressure test blind plate, comprising:

[0009] The main body includes a mounting tube, the side wall of the mounting tube is fixedly connected to two groups of connecting plates, the two groups of connecting plates are arranged vertically opposite each other, the two groups of connecting plates are matched with fixing columns, the fixing columns are fixedly connected to the two groups of connecting plates and pass through the two groups of connecting plates, the top of the fixing columns is rotatably connected to the rotating columns, the side wall of the rotating columns is fixedly connected to the connecting beam, the side of the connecting beam away from the rotating columns is fixedly connected to the connecting tube, and the top of the connecting tube is fixedly connected to the shell;

[0010] The blind plate assembly includes a threaded barrel, the threaded barrel is rotatably connected to the connecting barrel and passes through the connecting barrel, the shell is provided with a through hole at a position opposite to the threaded barrel, the threaded barrel passes through the shell through the through hole, the threaded barrel is threadedly connected to a threaded rod, the threaded rod passes through the threaded barrel, the bottom of the threaded barrel is fixedly connected to a connecting plate, the bottom of the connecting plate is detachably connected to a blind plate, the blind plate is located directly above the mounting tube and is arranged to coincide with the axis of the mounting tube;

[0011] The clamping mechanism includes a worm gear, which is arranged in a housing and fixedly sleeved on the outside of the threaded rotating cylinder. The housing is also equipped with a worm, which is rotatably connected to the housing and passes through the housing. The worm and the worm gear are meshed with each other.

[0012] As a preferred solution of the heating pipe pressure test blind plate described in the utility model, the blind plate assembly further includes a primary turntable, which is fixedly connected to the top of the threaded rod.

[0013] As a preferred solution of the heating pipeline pressure test blind plate described in the utility model, the first-level turntable, threaded rod, connecting plate and blind plate axis are arranged to coincide with each other, and the outer side of the first-level turntable has anti-slip grooves.

[0014] As a preferred solution of a heating pipe pressure test blind plate described in the utility model, wherein: four groups of through holes are opened on the top of the connecting plate, and the four groups of through holes are equidistantly distributed in a ring shape. The blind plate is opened with threaded holes at positions opposite to each group of through holes and is equipped with connecting bolts. The four groups of connecting bolts pass through the four groups of through holes respectively and are screwed into the corresponding threaded holes. The blind plate is detachably connected to the connecting plate through the four groups of connecting bolts.

[0015] As a preferred solution of the heating pipeline pressure test blind plate described in the utility model, the clamping mechanism further includes a secondary turntable, and the secondary turntable is fixedly connected to one end of the worm.

[0016] As a preferred solution of the heating pipeline pressure test blind plate described in the utility model, the secondary turntable is arranged to coincide with the worm axis, and the outer side of the secondary turntable has anti-slip grooves.

[0017] The beneficial effects of the present invention are as follows: by arranging a clamping mechanism in cooperation with the blind plate assembly, the device can not only quickly clamp the blind plate and close the installation pipe by rotating the first-level turntable, but also continue to rotate the second-level turntable after the blind plate has clamped the installation pipe to make the threaded rod further press down the blind plate. Compared with the existing device, the sealing effect can be further guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. Among them:

[0019] Figure 1 The utility model is a three-dimensional structural schematic diagram of a heating pipeline pressure test blind plate.

[0020] Figure 2 The utility model is a partial cross-sectional structural schematic diagram of a heating pipeline pressure test blind plate.

[0021] Figure 3 The utility model is a schematic diagram of the cross-sectional structure of the shell part of a heating pipeline pressure test blind plate.

[0022] Description of the drawings: 100, main body; 101, mounting tube; 102, connecting plate; 103, fixed column; 104, rotating column; 105, connecting beam; 106, connecting cylinder; 107, shell; 200, blind plate assembly; 201, threaded rotating cylinder; 202, threaded rod; 203, connecting plate; 204, blind plate; 205, connecting bolt; 206, primary turntable; 300, clamping mechanism; 301, worm gear; 302, worm; 303, secondary turntable. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0026] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing embodiments of the present invention, cross-sectional views of device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0027] Reference Figure 1-Figure 3 , is an embodiment of the present utility model, which provides a heating pipeline pressure test blind plate, comprising:

[0028] The main body 100 includes a mounting tube 101. Two sets of connecting plates 102 are fixedly connected to the side wall of the mounting tube 101. The two sets of connecting plates 102 are arranged vertically opposite each other. The two sets of connecting plates 102 are matched with fixing columns 103. The fixing columns 103 are fixedly connected to the two sets of connecting plates 102 and pass through the two sets of connecting plates 102. The top of the fixing columns 103 is rotatably connected to a rotating column 104. The side wall of the rotating column 104 is fixedly connected to a connecting beam 105. The side of the connecting beam 105 away from the rotating column 104 is fixedly connected to a connecting tube 106. The top of the connecting tube 106 is fixedly connected to a housing 107.

[0029] The blind plate assembly 200 includes a threaded barrel 201, which is rotatably connected to the connecting barrel 106 and passes through the connecting barrel 106. A through hole is formed in the housing 107 opposite the threaded barrel 201. The threaded barrel 201 passes through the housing 107 through the through hole. The threaded barrel 201 is threadedly connected to a threaded rod 202, which passes through the threaded barrel 201. A connecting disc 203 is fixedly connected to the bottom of the threaded barrel 201. A blind plate 204 is detachably connected to the bottom of the connecting disc 203. The blind plate 204 is located directly above the mounting tube 101 and is arranged to coincide with the axis of the mounting tube 101.

[0030] The clamping mechanism 300 includes a worm gear 301, which is arranged in the housing 107 and fixedly sleeved on the outside of the threaded rotating cylinder 201. The housing 107 is also equipped with a worm 302, which is rotatably connected to the housing 107 and passes through the housing 107. The worm 302 and the worm gear 301 are engaged with each other.

[0031] Among them, the blind plate assembly 200 also includes a first-level turntable 206, which is fixedly connected to the top of the threaded rod 202. The first-level turntable 206 is used to facilitate the rotation of the threaded rod 202. The first-level turntable 206, the threaded rod 202, the connecting plate 203 and the blind plate 204 are arranged to coincide with the axis to ensure structural stability. The outer side of the first-level turntable 206 has anti-slip grooves, which are used to prevent slipping when rotating the first-level turntable 206.

[0032] In addition, four groups of through holes are provided on the top of the connecting plate 203, and the four groups of through holes are equidistantly distributed in a circular shape. The blind plate 204 is provided with threaded holes at positions opposite to each group of through holes and is equipped with connecting bolts 205. The four groups of connecting bolts 205 pass through the four groups of through holes respectively and are screwed into the corresponding threaded holes. The blind plate 204 is detachably connected to the connecting plate 203 through the four groups of connecting bolts 205.

[0033] It should be noted that the clamping mechanism 300 also includes a secondary turntable 303, which is fixedly connected to one end of the worm 302. The secondary turntable 303 is used to facilitate the rotation of the worm 302. The secondary turntable 303 is arranged to coincide with the axis of the worm 302 to ensure structural stability. The outer side of the secondary turntable 303 has anti-slip grooves, which are used to prevent slipping when rotating the secondary turntable 303.

[0034] Working principle: The installation tube 101 is placed on the end of the pipeline and fixed by welding or other means, and the threaded rod 202 is rotated by the primary turntable 206. Since the worm 302 is stuck in the worm wheel 301, the threaded cylinder 201 cannot rotate, so the threaded rod 202 will move up or down along the threaded cylinder 201, thereby driving the blind plate 204 to move up or down. The primary turntable 206 is rotated until the blind plate 204 presses the installation tube 101. At this time, one person grasps the primary turntable 206 to rotate the threaded rod 202, and the other person rotates the secondary turntable 303. The secondary turntable 303 drives the worm 302 to rotate, and the worm 302 drives the worm wheel 301 to rotate. The worm gear 301 drives the threaded rotating cylinder 201 to rotate. Since the threaded rod 202 cannot rotate, the threaded rotating cylinder 201 will drive the threaded rod 202 to move upward or downward, and continue to rotate the secondary turntable 303 to make the threaded rotating cylinder 201 press down the connecting disk 203 and the blind plate 204. Due to the deceleration and torque increase characteristics of the worm gear structure, the blind plate 204 can be further pressed against the sealing installation tube 101. After rotating until the secondary turntable 303 cannot rotate, the installation is completed. When the blind plate 204 needs to be replaced, first rotate the primary turntable 206 to open and raise the height of the blind plate 204, then unscrew the four sets of connecting bolts 205 to remove the blind plate 204 for replacement.

[0035] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A heating pipe pressure test blind plate, characterized in that: include: The main body (100) comprises a mounting tube (101), wherein the side wall of the mounting tube (101) is fixedly connected with two groups of connecting plates (102), the two groups of connecting plates (102) are arranged vertically opposite to each other, the two groups of connecting plates (102) are matched with fixing columns (103), the fixing columns (103) are fixedly connected to the two groups of connecting plates (102) and pass through the two groups of connecting plates (102), the top of the fixing columns (103) is rotatably connected with a rotating column (104), the side wall of the rotating column (104) is fixedly connected with a connecting beam (105), the side of the connecting beam (105) away from the rotating column (104) is fixedly connected with a connecting tube (106), and the top of the connecting tube (106) is fixedly connected with a shell (107); A blind plate assembly (200) comprises a threaded rotating cylinder (201), wherein the threaded rotating cylinder (201) is rotatably connected to the connecting cylinder (106) and passes through the connecting cylinder (106), a through hole is provided in the housing (107) at a position opposite to the threaded rotating cylinder (201), the threaded rotating cylinder (201) passes through the housing (107) through the through hole, the threaded rotating cylinder (201) is threadedly connected to a threaded rod (202), the threaded rod (202) passes through the threaded rotating cylinder (201), a connecting disk (203) is fixedly connected to the bottom of the threaded rotating cylinder (201), a blind plate (204) is detachably connected to the bottom of the connecting disk (203), and the blind plate (204) is located directly above the mounting tube (101) and is arranged to coincide with the axis of the mounting tube (101); The pressing mechanism (300) includes a worm gear (301), which is arranged in a housing (107) and fixedly sleeved on the outside of the threaded rotating cylinder (201). The housing (107) is also equipped with a worm (302), which is rotatably connected to the housing (107) and passes through the housing (107). The worm (302) and the worm gear (301) are meshed with each other.

2. A heating pipe pressure test blind plate according to claim 1, characterized in that: The blind plate assembly (200) further includes a primary turntable (206), and the primary turntable (206) is fixedly connected to the top of the threaded rod (202).

3. A heating pipe pressure test blind plate according to claim 2, characterized in that: The primary turntable (206), the threaded rod (202), the connecting disc (203) and the blind plate (204) are arranged to coincide with each other in axis, and the outer side of the primary turntable (206) has anti-slip grooves.

4. A heating pipe pressure test blind plate according to claim 1, characterized in that: The top of the connecting plate (203) is provided with four groups of through holes, and the four groups of through holes are distributed in an annular shape with equal intervals. The blind plate (204) is provided with threaded holes at positions opposite to each group of through holes and is matched with connecting bolts (205). The four groups of connecting bolts (205) pass through the four groups of through holes respectively and are screwed into the corresponding threaded holes. The blind plate (204) is detachably connected to the connecting plate (203) through the four groups of connecting bolts (205).

5. A heating pipe pressure test blind plate according to claim 1, characterized in that: The pressing mechanism (300) further comprises a secondary rotating disc (303), and the secondary rotating disc (303) is fixedly connected to one end of the worm (302).

6. A heating pipe pressure test blind plate according to claim 5, characterized in that: The secondary rotating disc (303) is arranged to coincide with the axis of the worm (302), and the outer side of the secondary rotating disc (303) has anti-slip grooves.

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