Adjustable air pipe pressure testing device

Abstract

The utility model provides an adjustable air pipe pressure test device belongs to air pipe pretreatment equipment technical field. The device includes support frame, telescopic plugging mechanism, translation mechanism, plugging push plate and clamping mechanism, support frame has the placing table, and the placing table is used for the vertical placement of air pipe, telescopic plugging mechanism installs on support frame, and is located above the placing table, and telescopic plugging mechanism can move up and down to cover or open the upper open end of air pipe, translation mechanism is located in one side of support frame, and plugging push plate is driven to be connected with translation mechanism, and translation mechanism can drive plugging push plate reciprocating translation to cover or open the side open end of air pipe, clamping mechanism is installed on plugging push plate, when plugging push plate covers the side open end, clamping mechanism can hold or open the rim of plugging push plate and the rim of side open end. The telescopic plugging mechanism, translation mechanism, plugging push plate and clamping mechanism of the device cooperate and plug the open end of air pipe, can improve the operation convenience and reliability of air pipe pressure test.

Description

Technical Field

[0001] This utility model belongs to the technical field of duct pretreatment equipment, specifically relating to an adjustable duct pressure testing device. Background Technology

[0002] In the blast furnace ironmaking process, the blast furnace duct, or air duct, plays a crucial role in supplying high-temperature, high-pressure blast to the blast furnace tuyeres. Its structural strength and sealing performance directly affect the safe and stable operation of the blast furnace. Therefore, to ensure that the duct is free from high-pressure leakage or bursting risks due to manufacturing defects, poor welding, or inadequate sealing before actual use, a rigorous pressure test after manufacturing is an indispensable and important procedure. This test is a necessary means to verify the pressure-bearing capacity and integrity of the duct.

[0003] Under current technological conditions, the pressure testing process for ductwork largely relies on manual operation. This typically involves operators manually sealing flanges or other connections before connecting the pressure testing equipment. The entire process requires significant on-site manpower and manual intervention. However, during manual pressure testing, processes such as alignment and sealing of interfaces are time-consuming, manual tightening and disassembly of connections are inefficient, coordination is difficult when multiple points need to be operated simultaneously, and human error can easily lead to incomplete sealing, significantly impacting testing efficiency and reliability. Utility Model Content

[0004] The technical problem to be solved by this utility model is how to improve the ease of operation and reliability of duct pressure testing in order to ensure the test results. In view of the shortcomings of the existing technology, an adjustable duct pressure testing device is provided.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: This utility model provides an adjustable duct pressure testing device, including a support frame, a telescopic sealing mechanism, a translation mechanism, a sealing push plate, and a locking mechanism. The support frame has a placement platform for vertically placing the duct. The telescopic sealing mechanism is mounted on the support frame and located above the placement platform, and is used to move up and down to cover or open the upper opening end of the duct. The translation mechanism is located on one side of the support frame, and the sealing push plate is drivenly connected to the translation mechanism. The translation mechanism is used to drive the sealing push plate to reciprocate to cover or open the side opening end of the duct. The locking mechanism is mounted on the sealing push plate, and when the sealing push plate covers the side opening end, the locking mechanism is used to clamp or open the edge of the sealing push plate from the edge of the side opening end.

[0006] Compared to existing technologies, the advantages of this utility model include: An adjustable duct pressure testing device is composed of a support frame, a telescopic sealing mechanism, a translation mechanism, a sealing push plate, and a locking mechanism. The support frame, as an integral support structure, is equipped with a placement platform where the duct can be placed vertically. The placement platform not only provides stable support for the duct but also seals the lower opening of the duct. Simultaneously, the telescopic sealing mechanism is mounted on the support frame, ensuring its installation stability. Located above the duct, the telescopic sealing mechanism can cover or open the upper opening of the duct by moving up and down. This configuration allows the telescopic sealing mechanism to cover the upper opening, thus cooperating with the placement platform to automatically seal the upper and lower openings of the duct. Furthermore, the translation mechanism is located on one side of the support frame, and the sealing push plate is driven and connected to the translation mechanism. In this configuration, the translation mechanism drives the sealing push plate to reciprocate to cover or open the side opening of the duct, thus working in conjunction with the telescopic sealing mechanism and the placement platform to automatically seal all openings of the duct. When the duct is pressure tested, simply place it on the placement platform, effectively improving the ease of operation. Furthermore, the placement platform and telescopic sealing mechanism work together to clamp the duct, ensuring stability during sealing and thus improving the stability during pressure testing. Finally, a locking mechanism is installed on the sealing push plate. When the sealing push plate covers the side opening, the locking mechanism can clamp or open the edge of the sealing push plate against the edge of the side opening. The clamping force of the locking mechanism maintains stable sealing of the opening, further improving the stability during sealing and thus the stability during pressure testing, ensuring optimal test results.

[0007] Optionally, the translation mechanism includes a track laid on one side of the placement platform and extending away from the placement platform. The lower end of the sealing push plate is provided with a sliding groove, and the track is placed in the sliding groove.

[0008] Optionally, the translation mechanism further includes a first telescopic drive member, which is mounted on the track and located on the side of the sealing push plate away from the placement platform. The first telescopic drive member is drivenly connected to the sealing push plate and is used to drive the sealing push plate to reciprocate along the track.

[0009] Optionally, the locking mechanism includes a left and right telescopic drive assembly, a second telescopic drive member, and a clamping plate. The left and right telescopic drive assembly is mounted on the sealing push plate and located on the side of the sealing push plate away from the placement platform. There are two second telescopic drive members, which are mounted on the left and right telescopic ends of the left and right telescopic drive assembly. The clamping plate is located on the side of the sealing push plate facing the placement platform and is drivenly connected to the second telescopic drive member. When the air duct is located on the placement platform, the second telescopic drive member is used to drive the clamping plate to move toward or away from the side opening end. When the telescopic end of the left and right telescopic drive assembly retracts, the projection of the clamping plate on the air duct covers the edge of the side opening end.

[0010] Optionally, the engaging mechanism further includes a mounting plate and a protective box. The mounting plate is mounted on the telescopic end of the left and right telescopic drive assembly, and the lower end of the mounting plate is bent to form a mounting platform. The second telescopic drive component is mounted on the mounting platform. The protective box is mounted on the sealing push plate and has a hollow structure. The left and right telescopic drive assembly is mounted inside the protective box, and the left and right telescopic ends extend out from the left and right openings of the protective box, respectively.

[0011] Optionally, the left and right telescopic drive assembly includes a rotary gear column and a first rack and a second rack. The rotary gear column is vertically mounted on the plate surface of the sealing push plate and is used for reciprocating rotation around the axial direction. The first rack and the second rack are located on the upper and lower sides of the rotary gear column, respectively, and both mesh with the rotary gear column. The first rack and the second rack are respectively connected to two second telescopic drive members.

[0012] Optionally, the telescopic sealing mechanism includes a lifting assembly and a sealing plate. The lifting assembly is mounted on the support frame and located above the placement platform. The sealing plate is located between the lifting assembly and the placement platform and is drivenly connected to the lifting assembly. The lifting assembly is used to drive the sealing plate to move up and down to cover or open the upper opening end.

[0013] Optionally, the lifting assembly includes a mounting frame, a lifting cylinder, and a drive column. The mounting frame is fitted onto the support frame and has a through hole running vertically through it. The lifting cylinder is mounted on the mounting frame and is drivenly connected to the drive column running through the through hole. The drive column is connected to the sealing pressure plate.

[0014] Optionally, the support frame includes vertical support components and horizontal support columns. There are two vertical support components, which are installed at intervals on the placement platform so that the air duct is placed between the two vertical support components. The two ends of the horizontal support column are respectively connected to the upper ends of the two vertical support components.

[0015] Optionally, the vertical support assembly includes a support base, a lifting column, and a third telescopic drive component. The support base is installed on the placement platform and is a hollow structure with an open top. One end of the lifting column is installed inside the support base, and the other end is connected to the horizontal support column. The opposite side walls of the lifting column extend to form lifting protrusions. The two third telescopic drive components are vertically installed on the placement platform and are respectively driven connected to the two lifting protrusions. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings.

[0017] Figure 1 : A schematic diagram of the adjustable duct pressure testing device from one angle in this embodiment of the present invention; Figure 2 : A schematic diagram of the adjustable duct pressure testing device from another perspective in this embodiment of the present invention; Figure 3 : A structural schematic diagram of the adjustable duct pressure testing device from another perspective in this embodiment of the present invention.

[0018] Among them, 1-support frame, 11-placement platform, 12-vertical support assembly, 121-support base, 122-lifting column, 1221-lifting protrusion, 123-third telescopic drive component, 13-horizontal support column, 2-telescopic sealing mechanism, 21-lifting assembly, 211-mounting frame, 212-lifting cylinder, 213-drive column, 22-sealing pressure plate, 3-translation mechanism, 31-track, 32-first telescopic drive component, 4-sealing push plate, 5-locking mechanism, 51-left and right telescopic drive assembly, 511-rotating gear column, 512-first rack, 513-second rack, 52-second telescopic drive component, 53-clamping plate, 54-mounting plate, 55-protective box, 6-air duct, 61-upper opening end, 62-side opening end. Detailed Implementation

[0019] To better understand this utility model, the following embodiments further illustrate its content, but the scope of protection of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.

[0020] It should be noted that the Z-axis in the attached figures represents the vertical direction, i.e., the up-down position, with the positive direction of the Z-axis representing upward and the negative direction representing downward; the Y-axis in the attached figures represents the horizontal direction and is designated as the front-back position, with the positive direction of the Y-axis representing the front and the negative direction representing the back; the X-axis in the attached figures represents the left-right position, with the positive direction of the X-axis representing the right and the negative direction representing the left. It should also be noted that the aforementioned representations of the Z, Y, and X axes are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0022] It should be noted that the terms "one" and "multiple" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0023] An embodiment of this utility model provides an adjustable duct pressure testing device, including a support frame 1, a telescopic sealing mechanism 2, a translation mechanism 3, a sealing push plate 4, and a locking mechanism 5. The support frame 1 has a placement platform 11 for vertically placing the duct 6. The telescopic sealing mechanism 2 is installed on the support frame 1 and located above the placement platform 11. The telescopic sealing mechanism 2 is used to move up and down to cover or open the upper opening end 61 of the duct 6. The translation mechanism 3 is located on one side of the support frame 1. The sealing push plate 4 is drivenly connected to the translation mechanism 3. The translation mechanism 3 is used to drive the sealing push plate 4 to reciprocate to cover or open the side opening end 62 of the duct 6. The locking mechanism 5 is installed on the sealing push plate 4. When the sealing push plate 4 covers the side opening end 62, the locking mechanism 5 is used to clamp or open the edge of the sealing push plate 4 and the edge of the side opening end 62.

[0024] Specifically, the translation mechanism 3 can be a linear telescopic drive mechanism, the telescopic sealing mechanism 2 can be driven by a telescopic hydraulic cylinder, and the locking mechanism 5 can be a chuck or a chuck. The adjustable duct pressure test device is also equipped with an inflation mechanism for filling the duct 6 with high-pressure gas, which will not be described in detail here.

[0025] In this embodiment, as Figure 1 As shown, an adjustable duct pressure testing device is composed of a support frame 1, a telescopic sealing mechanism 2, a translation mechanism 3, a sealing push plate 4, and a locking mechanism 5. The support frame 1 serves as the overall support structure and includes a placement platform 11 on which the duct 6 can be placed vertically. The platform 11 provides stable support for the duct 6 and also seals the lower opening of the duct 6. The telescopic sealing mechanism 2 is mounted on the support frame 1, ensuring its installation stability. Located above the duct 6, the telescopic sealing mechanism 2 can cover or open the upper opening 61 of the duct 6 by moving up and down. This configuration allows the telescopic sealing mechanism 2 to cover the upper opening 61, thus automatically sealing the upper and lower openings of the duct 6 in conjunction with the placement platform 11. The translation mechanism 3 is located on one side of the support frame 1, and the sealing push plate 4 is driven by the translation mechanism 3. The driveable sealing push plate 4 can reciprocate to cover or open the side opening end 62 of the air duct 6, thereby cooperating with the telescopic sealing mechanism 2 and the placement platform 11 to achieve automated sealing of each opening of the air duct 6. Then, when the air duct 6 is pressure tested, it is only necessary to place the air duct 6 on the placement platform 11, which effectively improves the convenience of the air duct 6 pressure test operation. Moreover, the placement platform 11 and the telescopic sealing mechanism 2 work together to clamp the air duct 6, which effectively ensures the stability of the air duct 6 during sealing, thereby improving the stability of the air duct 6 during pressure test. Finally, the locking mechanism 5 is installed on the sealing push plate 4. When the sealing push plate 4 covers the side opening end 62, the locking mechanism 5 can clamp or open the edge of the sealing push plate 4 and the edge of the side opening end 62. Thus, the clamping force of the locking mechanism 5 can maintain the stable sealing of the side opening end 62 by the sealing push plate 4, further improving the stability of the air duct 6 during sealing, and further improving the stability of the air duct 6 during pressure test, ensuring the test effect.

[0026] Optionally, the translation mechanism 3 includes a track 31, which is laid on one side of the placement platform 11 and extends away from the placement platform 11. The lower end of the sealing push plate 4 is provided with a sliding groove, and the track 31 is placed in the sliding groove.

[0027] Specifically, track 31 is a double-row square track.

[0028] In this optional embodiment, such as Figure 1As shown, the translation mechanism 3 is provided with a track 31, which is laid on one side of the placement platform 11 and extends away from the placement platform 11. The lower end of the sealing push plate 4 is provided with a sliding groove, and the track 31 is placed in the sliding groove, so that the sealing push plate 4 can move towards or away from the placement platform 11 under the guidance of the track 31. Then, when the air duct 6 is placed on the placement platform 11, the side opening end 62 of the air duct 6 is sealed to ensure the sealing stability of the air duct 6.

[0029] Optionally, the translation mechanism 3 further includes a first telescopic drive member 32, which is mounted on the track 31 and located on the side of the sealing push plate 4 away from the placement platform 11. The first telescopic drive member 32 is drivenly connected to the sealing push plate 4 and is used to drive the sealing push plate 4 to reciprocate along the track 31.

[0030] Specifically, such as Figure 1 As shown, the first telescopic drive component 32 is a telescopic hydraulic cylinder or a telescopic pneumatic cylinder, and there are two of them. There are also two rails 31, which are arranged side by side. The two first telescopic drive components 32 are respectively installed on the two rails 31.

[0031] In this optional embodiment, to ensure the ease of movement of the blocking push plate 4, such as... Figure 1 As shown, the translation mechanism 3 is also provided with a first telescopic drive component 32, wherein the first telescopic drive component 32 is installed on the track 31 and is located on the side of the sealing push plate 4 away from the placement platform 11. At the same time, the first telescopic drive component 32 is driven to connect with the sealing push plate 4, thereby driving the sealing push plate 4 to move back and forth along the track 31 to realize the automatic sealing and opening of the opposite opening end 62.

[0032] Optionally, the locking mechanism 5 includes a left and right telescopic drive assembly 51, a second telescopic drive member 52, and a clamping plate 53. The left and right telescopic drive assembly 51 is mounted on the sealing push plate 4 and is located on the side of the sealing push plate 4 away from the placement platform 11. There are two second telescopic drive members 52, which are mounted on the left and right telescopic ends of the left and right telescopic drive assembly 51. The clamping plate 53 is located on the side of the sealing push plate 4 facing the placement platform 11 and is drivenly connected to the second telescopic drive member 52. When the air duct 6 is located on the placement platform 11, the second telescopic drive member 52 is used to drive the clamping plate 53 to move toward or away from the side opening end 62. When the telescopic ends of the left and right telescopic drive assembly 51 are retracted, the projection of the clamping plate 53 on the air duct 6 covers the edge of the side opening end 62.

[0033] Specifically, the left and right telescopic drive assembly 51 can be composed of two telescopic cylinders or telescopic hydraulic cylinders arranged in opposite directions, and the second telescopic drive component 52 can be a telescopic cylinder or a telescopic hydraulic cylinder.

[0034] In this optional embodiment, such as Figure 1 and Figure 2As shown, a locking mechanism 5 is formed by a left and right telescopic drive assembly 51, a second telescopic drive component 52, and a clamping plate 53. The left and right telescopic drive assembly 51 is mounted on the sealing push plate 4 and located on the side of the sealing push plate 4 away from the placement platform 11, thus ensuring effective sealing of the side opening end 62 of the sealing push plate 4. Two second telescopic drive components 52 are installed on the left and right telescopic ends of the left and right telescopic drive assembly 51. The clamping plate 53 is located on the side of the sealing push plate 4 facing the placement platform 11 and is driven by the second telescopic drive component 52. When the air duct 6 is located on the placement platform 11, the second telescopic drive component 52 can drive the clamping plate 53 to move towards or away from the side opening end 62. When the telescopic ends of the left and right telescopic drive assembly 51 retract, the clamping plate 53 engages with the air duct 6. The projection on the top covers the edge of the side opening 62. With this configuration, when the duct 6 is placed on the placement platform 11, the two telescopic ends of the left and right telescopic drive assembly 51 can drive the two clamping plates 53 connected to the second telescopic drive component 52 to move away from each other, so that the sealing push plate 4 can seal the side opening 62. Then, the two telescopic ends of the left and right telescopic drive assembly 51 can drive the two clamping plates 53 connected to the second telescopic drive component 52 to move closer to each other, so that the clamping plates 53 are located on the side of the side opening 62 away from the sealing push plate 4. At this time, the second telescopic drive component 52 drives the clamping plates 53 to move towards the sealing push plate 4, so that the clamping plates 53 and the sealing push plate 4 cooperate to clamp the edge of the side opening 62, realizing automated sealing and ensuring the convenience and stability of sealing.

[0035] Optionally, the locking mechanism 5 also includes a mounting plate 54 and a protective box 55. The mounting plate 54 is mounted on the telescopic end of the left and right telescopic drive assembly 51. The lower end of the mounting plate 54 is bent to form a mounting platform, and the second telescopic drive component 52 is mounted on the mounting platform. The protective box 55 is mounted on the sealing push plate 4 and has a hollow structure. The left and right telescopic drive assembly 51 is mounted inside the protective box 55, and the left and right telescopic ends extend out from the left and right openings of the protective box 55, respectively.

[0036] In this optional embodiment, such as Figure 2 and Figure 3As shown, the engaging mechanism 5 is also equipped with an mounting plate 54 and a protective box 55. The mounting plate 54 is installed on the telescopic ends of the left and right telescopic drive components 51. The lower end of the mounting plate 54 is bent to form a mounting platform, and the second telescopic drive component 52 is installed on the mounting platform. Thus, the mounting plate 54 can ensure the connection stability between the left and right telescopic drive components 51 and the second telescopic drive component 52, and the mounting platform can ensure the installation stability of the second telescopic drive component 52. On this basis, the protective box 55 is installed on the sealing push plate 4 and has a hollow structure. The left and right telescopic drive components 51 are installed inside the protective box 55, and the left and right telescopic ends extend from the left and right openings of the protective box 55, respectively. This arrangement can ensure the working stability of the left and right telescopic drive components 51 through the protective box 55, and the guiding effect of the openings of the protective box 55 can ensure the movement stability of the two telescopic ends of the left and right telescopic drive components 51.

[0037] Optionally, the left and right telescopic drive assembly 51 includes a rotating gear column 511 and a first rack 512 and a second rack 513. The rotating gear column 511 is vertically mounted on the plate surface of the sealing push plate 4 and is used for reciprocating rotation around the axial direction. The first rack 512 and the second rack 513 are located on the upper and lower sides of the rotating gear column 511, respectively, and both mesh with the rotating gear column 511. The first rack 512 and the second rack 513 are respectively connected to two second telescopic drive members 52.

[0038] In this optional embodiment, such as Figure 3 As shown, a left-right telescopic drive assembly 51 is formed by a rotating gear column 511, a first rack 512, and a second rack 513. The rotating gear column 511 is vertically mounted on the surface of the sealing push plate 4 and can reciprocate around the axial direction. The first rack 512 and the second rack 513 are located on the upper and lower sides of the rotating gear column 511, respectively, and both mesh with the rotating gear column 511. With this configuration, when the rotating gear column 511 rotates, due to the meshing action, the first rack 512 and the second rack 513 can reciprocate in opposite directions, thereby achieving synchronous extension and retraction of the first rack 512 and the second rack 513 on the left and right sides. Based on this, the first rack 512 and the second rack 513 are respectively connected to two second telescopic drive members 52, so that the rotation of the rotating gear column 511 can achieve the driving effect of moving the two second telescopic drive members 52 closer to each other or further away, thereby achieving stable driving of the clamping plate 53.

[0039] Optionally, the telescopic sealing mechanism 2 includes a lifting assembly 21 and a sealing plate 22. The lifting assembly 21 is mounted on the support frame 1 and located above the placement platform 11. The sealing plate 22 is located between the lifting assembly 21 and the placement platform 11 and is drivenly connected to the lifting assembly 21. The lifting assembly 21 is used to drive the sealing plate 22 to move up and down to cover or open the upper opening end 61.

[0040] Specifically, the lifting assembly 21 can be a structure driven by a telescopic hydraulic cylinder or a telescopic electric cylinder.

[0041] In this optional embodiment, such as Figures 1 to 3 As shown, a telescopic sealing mechanism 2 is formed by a lifting component 21 and a sealing plate 22. The lifting component 21 is mounted on the support frame 1 and located above the placement platform 11, while the sealing plate 22 is located between the lifting component 21 and the placement platform 11 and is drivenly connected to the lifting component 21. With this configuration, the lifting component 21 can drive the sealing plate 22 to move up and down, thereby covering or opening the upper opening end 61, realizing the sealing and opening of the upper opening end 61. The sealing plate 22 can also utilize the gravity effect and cooperate with the continuous force of the lifting component 21 to ensure effective and stable sealing of the upper opening end 61.

[0042] Optionally, the lifting assembly 21 includes a mounting frame 211, a lifting cylinder 212, and a drive column 213. The mounting frame 211 is fitted onto the support frame 1 and has a through hole running vertically through it. The lifting cylinder 212 is mounted on the mounting frame 211 and is driven connected to the drive column 213 through the through hole. The drive column 213 is connected to the sealing pressure plate 22.

[0043] In this optional embodiment, such as Figure 1 and Figure 2 As shown, a lifting assembly 21 is composed of a mounting frame 211, a lifting cylinder 212, and a drive column 213. The mounting frame 211 is fitted onto the support frame 1 and has a through hole running vertically through it. The lifting cylinder 212 is mounted on the mounting frame 211 and is driven by the drive column 213 through the through hole, so that the drive column 213 can move stably up and down under the guidance of the through hole. The drive column 213 is connected to the sealing pressure plate 22, thereby achieving stable driving of the sealing pressure plate 22.

[0044] Optionally, the support frame 1 includes a vertical support assembly 12 and a horizontal support column 13. There are two vertical support assemblies 12, which are installed at intervals on the placement platform 11 so that the air duct 6 can be placed between the two vertical support assemblies 12. The two ends of the horizontal support column 13 are respectively connected to the upper ends of the two vertical support assemblies 12.

[0045] Specifically, the vertical support component 12 can be a base or column structure.

[0046] In this optional embodiment, to ensure the stability of the sealing, such as Figures 1 to 3As shown, the support frame 1 is also provided with vertical support components 12 and horizontal support columns 13. There are two vertical support components 12, which are installed at intervals on the placement platform 11, so that the air duct 6 is placed between the two vertical support components 12. The two ends of the horizontal support column 13 are respectively connected to the upper ends of the two vertical support components 12, which facilitates the installation of the telescopic sealing mechanism 2 and thus ensures the sealing stability of the upper opening end 61.

[0047] Optionally, the vertical support assembly 12 includes a support base 121, a lifting column 122, and a third telescopic drive member 123. The support base 121 is installed on the placement platform 11 and is a hollow structure with an open top. One end of the lifting column 122 is installed inside the support base 121, and the other end is connected to the horizontal support column 13. The opposite side walls of the lifting column 122 extend to form lifting protrusions 1221. The two third telescopic drive members 123 are vertically installed on the placement platform 11 and are drivenly connected to the two lifting protrusions 1221 respectively.

[0048] Specifically, the third telescopic drive component 123 is a telescopic hydraulic cylinder or a telescopic electric cylinder, etc.

[0049] In this optional embodiment, such as Figures 1 to 3 As shown, a vertical support assembly 12 is formed by a support base 121, a lifting column 122, and a third telescopic drive component 123. The support base 121 is installed on the placement platform 11 and is a hollow structure with an open top. One end of the lifting column 122 is installed inside the support base 121, and the other end is connected to the horizontal support column 13, thereby enabling vertical extension and retraction. The opposite side walls of the lifting column 122 extend to form lifting protrusions 1221. Two third telescopic drive components 123 are vertically installed on the placement platform 11 and are driven and connected to the two lifting protrusions 1221 respectively. Thus, the height of the horizontal support column 13 can be adjusted by driving the third telescopic drive components 123, which is suitable for pressure testing of air ducts 6 of different sizes.

[0050] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An adjustable duct pressure testing device, characterized in that, The system includes a support frame (1), a telescopic sealing mechanism (2), a translation mechanism (3), a sealing push plate (4), and a locking mechanism (5); the support frame (1) has a placement platform (11) for vertically placing the air duct (6); the telescopic sealing mechanism (2) is mounted on the support frame (1) and located above the placement platform (11), and the telescopic sealing mechanism (2) is used to move up and down to cover or open the upper opening end (61) of the air duct (6); the translation mechanism (3) is located at... On one side of the support frame (1), the sealing push plate (4) is driven to connect with the translation mechanism (3). The translation mechanism (3) is used to drive the sealing push plate (4) to reciprocate to cover or open the side opening end (62) of the air duct (6). The locking mechanism (5) is installed on the sealing push plate (4). When the sealing push plate (4) covers the side opening end (62), the locking mechanism (5) is used to clamp or open the edge of the sealing push plate (4) and the edge of the side opening end (62).

2. The adjustable duct pressure testing device as described in claim 1, characterized in that, The translation mechanism (3) includes a track (31), which is laid on one side of the placement platform (11) and extends away from the placement platform (11). The lower end of the sealing push plate (4) is provided with a sliding groove, and the track (31) is placed in the sliding groove.

3. The adjustable duct pressure testing device as described in claim 2, characterized in that, The translation mechanism (3) further includes a first telescopic drive member (32), which is installed on the track (31) and located on the side of the sealing push plate (4) away from the placement platform (11). The first telescopic drive member (32) is driven to connect with the sealing push plate (4) and is used to drive the sealing push plate (4) to reciprocate along the track (31).

4. The adjustable duct pressure testing device as described in claim 1, characterized in that, The locking mechanism (5) includes a left and right telescopic drive assembly (51), a second telescopic drive member (52), and a clamping plate (53). The left and right telescopic drive assembly (51) is mounted on the sealing push plate (4) and is located on the side of the sealing push plate (4) away from the placement platform (11). There are two second telescopic drive members (52), which are mounted on the left and right telescopic ends of the left and right telescopic drive assembly (51). The clamping plate (53) is located on the side of the sealing push plate (4) facing the placement platform (11) and is driven to connect with the second telescopic drive member (52). When the air duct (6) is located on the placement platform (11), the second telescopic drive member (52) is used to drive the clamping plate (53) to move toward or away from the side opening end (62). When the telescopic end of the left and right telescopic drive assembly (51) retracts, the projection of the clamping plate (53) on the air duct (6) covers the edge of the side opening end (62).

5. The adjustable duct pressure testing device as described in claim 4, characterized in that, The locking mechanism (5) further includes a mounting plate (54) and a protective box (55). The mounting plate (54) is mounted on the telescopic end of the left and right telescopic drive assembly (51). The lower end of the mounting plate (54) is bent to form a mounting platform. The second telescopic drive component (52) is mounted on the mounting platform. The protective box (55) is mounted on the sealing push plate (4) and has a hollow structure. The left and right telescopic drive assembly (51) is mounted inside the protective box (55), and the left and right telescopic ends extend out from the left and right openings of the protective box (55) respectively.

6. The adjustable duct pressure testing device as described in claim 4, characterized in that, The left and right telescopic drive assembly (51) includes a rotary gear column (511) and a first rack (512) and a second rack (513). The rotary gear column (511) is vertically mounted on the plate surface of the sealing push plate (4) and is used to reciprocate around the axial direction. The first rack (512) and the second rack (513) are located on the upper and lower sides of the rotary gear column (511) respectively and are both meshed with the rotary gear column (511). The first rack (512) and the second rack (513) are respectively connected to two second telescopic drive members (52).

7. The adjustable duct pressure testing device as described in claim 1, characterized in that, The telescopic sealing mechanism (2) includes a lifting assembly (21) and a sealing plate (22). The lifting assembly (21) is installed on the support frame (1) and located above the placement platform (11). The sealing plate (22) is located between the lifting assembly (21) and the placement platform (11) and is drivenly connected to the lifting assembly (21). The lifting assembly (21) is used to drive the sealing plate (22) to move up and down to cover or open the upper opening end (61).

8. The adjustable duct pressure testing device as described in claim 7, characterized in that, The lifting assembly (21) includes a mounting frame (211), a lifting cylinder (212), and a drive column (213). The mounting frame (211) is fitted onto the support frame (1) and has a through hole running vertically through it. The lifting cylinder (212) is mounted on the mounting frame (211) and is driven connected to the drive column (213) running through the through hole. The drive column (213) is connected to the sealing pressure plate (22).

9. The adjustable duct pressure testing device as described in any one of claims 1 to 8, characterized in that, The support frame (1) includes a vertical support assembly (12) and a horizontal support column (13). There are two vertical support assemblies (12), which are installed at intervals on the placement platform (11) so that the air duct (6) can be placed between the two vertical support assemblies (12). The two ends of the horizontal support column (13) are respectively connected to the upper ends of the two vertical support assemblies (12).

10. The adjustable duct pressure testing device as described in claim 9, characterized in that, The vertical support assembly (12) includes a support base (121), a lifting column (122), and a third telescopic drive member (123). The support base (121) is installed on the placement platform (11) and is a hollow structure with an open top. One end of the lifting column (122) is installed inside the support base (121), and the other end is connected to the horizontal support column (13). The opposite side walls of the lifting column (122) extend to form lifting protrusions (1221). The two third telescopic drive members (123) are vertically installed on the placement platform (11) and are driven connected to the two lifting protrusions (1221) respectively.

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