Airtight inspection cover parking and installation gantry and mobile airtight inspection device

Abstract

The present application provides a parking and installation trolley for an airtight inspection cover and a mobile airtight inspection device, which relates to the technical field of airtight inspection. The parking and installation trolley for the airtight inspection cover includes: a chassis, a lifting bracket, a cantilever beam, and a lifting device. The lifting bracket is rotatably arranged on the chassis, the cantilever beam is arranged on the lifting bracket and can be lifted under the drive of the lifting bracket, and the lifting device is movably arranged on the cantilever beam. The mobile airtight inspection device includes an airtight inspection cover and the above-mentioned trolley. The airtight inspection cover is placed vertically on the chassis, and the lifting device can hang the airtight inspection cover. This parking and installation trolley can drive the airtight inspection cover to lift through the lifting device, comprehensively adjust the height of the airtight inspection cover through the lifting bracket, and adjust the horizontal position of the airtight inspection cover on the cantilever beam so that it can be docked with the cylinder body. In addition, it can conveniently store the airtight inspection cover, avoid damage to the sealing strip of the airtight inspection cover, and effectively improve the existing technical problems.

Description

Technical Field

[0001] The present application relates to the technical field of airtight inspection, and more particularly, to a parking and installation trolley for an airtight inspection cover and a mobile airtight inspection device. Background Art

[0002] For the first time, a gantry crane was used to lift the airtight inspection cover for airtight inspection. This working mode requires the cooperation of a bridge crane. In the actual guarantee process of multiple guarantee works, this mode will inevitably affect the parallel development of other guarantee works. Secondly, because the structure of the airtight inspection cover is in the shape of a semi-spherical shell, the airtight inspection cover is to block both ends of a cylindrical barrel and then seal and pressurize to check for leaks. Usually, it is placed horizontally on the wooden pads on the factory floor, which will squeeze the sealing rubber strip. And due to the inaccessibility inside its structure, it is impossible to check the airtight operation holes, inspect and touch up the paint and other maintenance operations on its inner surface during use and maintenance. In addition, affected by factors such as use bumps and rubber aging, the safety and reliability of the airtight inspection cover in use are affected.

[0003] Finally, the self-weight of the airtight inspection cover is about 750 Kg, it occupies a large space, and it cannot be carried and moved manually. A bridge crane is required to lift, lower and move its position. There are more than a dozen sets of technical support equipment in the factory building. Affected by factors such as equipment size and factory building function layout, and in addition, multiple sets of equipment need to be parked temporarily, the positions available for placing the airtight inspection cover in the factory building are very few, and it often needs to be moved due to work guarantee reasons, which restricts the effective use of space in the factory building and at the same time reduces the efficiency of equipment deployment during the preparation of guarantee work.

[0004] Therefore, aiming to solve the problems existing in the guarantee mode and equipment use and maintenance, developing a special trolley for the airtight inspection cover is of great significance for improving the work efficiency of the entire process of guarantee work and improving the use reliability and maintenance convenience of airtight inspection. Summary of the Invention

[0005] The purpose of the present application is to provide a parking and installation trolley for an airtight inspection cover, which can improve the inconvenience in the use and storage of the existing airtight inspection cover.

[0006] Another purpose of the present application is to provide a mobile airtight inspection device, which includes the above-mentioned parking and installation trolley for an airtight inspection cover and has all the characteristics of the parking and installation trolley for an airtight inspection cover.

[0007] The embodiments of the present application are implemented as follows:

[0008] The embodiments of the present application provide a parking and installation trolley for an airtight inspection cover, including: a chassis, a lifting bracket, a cantilever beam and a lifting device;

[0009] The lifting bracket is rotatably arranged on the chassis. The cantilever beam is arranged on the lifting bracket and can be lifted under the drive of the lifting bracket. The hoisting device is movably arranged on the cantilever beam.

[0010] The hoisting device can lift the airtight inspection cover to realize the lifting of the airtight inspection cover. Combining with the lifting drive of the lifting bracket, when the airtight inspection cover is needed for airtight inspection, the height of the airtight inspection cover can be adjusted according to the height of the inspection object. And the hoisting device can move on the cantilever beam, so that the distance between the airtight inspection cover and the inspection object in the horizontal direction can be adjusted, which is convenient for installing the airtight inspection cover on the inspection object. During daily storage, the height of the airtight inspection cover can be lowered to reduce the center of gravity, so that the whole vehicle is stable during storage. And since the airtight inspection cover can be lifted, the sealing strip is prevented from being extruded and affecting the airtight effect, effectively improving the existing problems.

[0011] In addition, the airtight inspection cover parking and installation vehicle provided by the embodiment of the present application may also have the following additional technical features:

[0012] In an optional embodiment of the present application, the lifting bracket includes a first gantry and a second gantry. The first gantry is rotatably arranged on the chassis. The second gantry is liftably arranged on the first gantry. The cantilever beam is connected to the second gantry.

[0013] In an optional embodiment of the present application, the second gantry is liftably arranged on the first gantry through a lifting mechanism;

[0014] The lifting mechanism includes a hoisting rope shaft, a hoisting rope wheel mechanism and a winch. The winch is arranged on the first gantry. The hoisting rope wheel mechanism is arranged on the first gantry. The hoisting rope shaft is arranged on the second gantry. The cable of the winch is wound around the hoisting rope wheel mechanism and connected to the hoisting rope shaft.

[0015] The lifting mechanism composed of the hoisting rope shaft, the hoisting rope wheel mechanism and the winch can be conveniently arranged according to the relative positional relationship between the first gantry and the second gantry to realize the lifting of the second gantry relative to the first gantry.

[0016] In an optional embodiment of the present application, a plug plate mechanism is arranged on the first gantry. The plug plate mechanism can support the second gantry after the second gantry rises to the position.

[0017] Through the supporting action of the plug plate mechanism, it can be further ensured that when installing the airtight inspection cover, the airtight inspection cover can be maintained at the required height, avoiding the unstable situation of the second gantry, ensuring the safety of the airtight inspection cover and the inspection object, and also ensuring the safety of the operator.

[0018] In an alternative embodiment of the present application, the airtight inspection cover parking and installation gantry vehicle further includes a support structure, which includes an upper support assembly and a bottom support assembly. The upper support assembly is disposed on the first gantry and is used to support the upper outer wall of the airtight inspection cover in a vertically placed state, and the bottom support assembly is disposed on the chassis and is used to support the lower edge of the airtight inspection cover in a vertically placed state.

[0019] The upper support assembly and the bottom support assembly can support the airtight inspection cover in a vertically placed state and maintain this state, preventing the sealing strip of the airtight inspection cover from being excessively deformed and becoming ineffective.

[0020] In an alternative embodiment of the present application, the lifting bracket is rotatably disposed on the chassis through a slewing mechanism.

[0021] Combined with the function of the slewing mechanism, the direction of the airtight inspection cover in the horizontal plane can be adjusted more conveniently to facilitate docking with the inspection object.

[0022] In an alternative embodiment of the present application, the slewing mechanism includes a support plate and a slewing bearing. The slewing bearing is disposed on the chassis, the support plate is disposed on the top of the slewing bearing, and the lifting bracket is disposed on the support plate.

[0023] The slewing bearing technology is mature and reliable, and the adjustment is accurate when used to adjust the lifting bracket. With the support plate to increase the support area during support, the lifting bracket can be adjusted on the premise of stably supporting it.

[0024] In an alternative embodiment of the present application, the lifting device is a chain hoist.

[0025] In an alternative embodiment of the present application, the chassis includes a base, tires, and support leg frames;

[0026] The tires are disposed at the bottom of the base, the lifting bracket is disposed above the base, the support leg frames are foldably disposed on the base, and the support leg frames include a folded state and a support state. In the support state, the support leg frames extend out and support together with the tires.

[0027] On the one hand, the tires can play a supporting role, and on the other hand, they can allow the base to move. Combined with the auxiliary stabilizing effect of the support leg frames, it can ensure that the overall structure is more stable during the hoisting of the airtight inspection cover and does not tip over.

[0028] An embodiment of the present application provides a mobile airtight inspection device, which includes an airtight inspection cover and the airtight inspection cover parking and installation gantry vehicle described in any one of the above. The airtight inspection cover is placed vertically on the chassis, and the lifting device can hang the airtight inspection cover.

[0029] The mobile airtight inspection device can be easily stored in the workshop by finding a location, and can be directly moved to the location where the object to be inspected is located as needed, without interfering with other operations in the workshop, making it very convenient to use. Brief Description of the Drawings

[0030] To more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without creative efforts.

[0031] Figure 1 Isometric view of the airtight inspection cover parking and mounting carriage provided for the embodiment of the present application;

[0032] Figure 2 Is Figure 1 Left view of;

[0033] Figure 3 Is Figure 1 Schematic diagram of the airtight inspection cover parked on the airtight inspection cover parking and mounting carriage of;

[0034] Figure 4 Is Figure 2 Schematic diagram of the airtight inspection cover parked on the airtight inspection cover parking and mounting carriage of;

[0035] Figure 5 Is Figure 4 Partial enlarged view of part A of;

[0036] Figure 6 Schematic diagram of the slewing bearing and the rotating shaft;

[0037] Figure 7 Isometric view of the first gantry;

[0038] Figure 8 Is Figure 7 Front view of;

[0039] Figure 9 Isometric view of the second gantry;

[0040] Figure 10 Is Figure 9 Cross-sectional view of the second gantry shown in;

[0041] Figure 11 Schematic diagram of the upper support assembly;

[0042] Figure 12 Schematic diagram of the hoist and the cable of the lifting mechanism;

[0043] Figure 13 Is an axonometric view of the chassis;

[0044] Figure 14 Is Figure 13 The bottom view of.

[0045] Icons: 1000 - Parking and mounting frame for airtight inspection cover; 10 - Chassis; 11 - Arc-shaped track groove; 12 - Base; 13 - Tires; 14 - Support leg frame; 15 - Steering link mechanism; 16 - Brake system; 17 - Drawbar; 30 - Lifting bracket; 31 - First gantry; 311 - Card hole; 312 - Upper cross beam; 32 - Second gantry; 321 - Guide wheel; 322 - Roller shaft; 323 - Forklift bearing; 324 - Bearing gland; 325 - Locking assembly; 3251 - Locking seat; 3252 - Locking adjustment bolt; 3253 - Locking plug; 326 - Drum; 50 - Cantilever beam; 70 - Lifting device; 90 - Upper support assembly; 91 - Support connecting piece; 92 - Support rod; 93 - First positioning piece; 94 - Second positioning piece; 95 - Support cushion block; 110 - Bottom support assembly; 131 - Rotary drive; 132 - Rotating shaft; 133 - Handle; 140 - Guide shoe; 151 - Hoisting rope shaft; 1521 - First guide wheel; 1522 - Steering wheel; 1523 - Second guide wheel; 153 - Winch; 1531 - Rope; 1532 - Reducing motor; 1533 - Core shaft; 1534 - Drum; 160 - Third guide wheel; 170 - Rack and pinion plug mechanism; 1001 - Electric control box; 2000 - Airtight inspection cover. Detailed implementation manners

[0046] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated herein can be arranged and designed in various different configurations.

[0047] 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 present application claimed, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0048] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0049] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "inside" and "outside" is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product is usually placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In addition, terms such as "first" and "second" are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0050] In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "set" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0051] Embodiment

[0052] Please refer to Figures 1 to 14 , the present application provides a parking and installation trolley 1000 for an airtight inspection cover, including: a chassis 10, a lifting bracket 30, a cantilever beam 50, and a lifting device 70;

[0053] The lifting bracket 30 is rotatably arranged on the chassis 10, the cantilever beam 50 is arranged on the lifting bracket 30 and can be lifted under the drive of the lifting bracket 30, and the lifting device 70 is movably arranged on the cantilever beam 50.

[0054] The lifting device 70 can lift the airtight inspection cover 2000 to realize the lifting of the airtight inspection cover 2000. Combining with the lifting drive of the lifting bracket 30, when the airtight inspection cover 2000 is needed for airtight inspection, the height of the airtight inspection cover 2000 can be adjusted according to the height of the inspection object. And the lifting device 70 can move on the cantilever beam 50, so that the distance between the airtight inspection cover 2000 and the inspection object in the horizontal direction can be adjusted, facilitating the installation of the airtight inspection cover 2000 onto the inspection object.

[0055] During daily storage, the height of the airtight inspection cover 2000 can be lowered to reduce the center of gravity, making the entire trolley stable during storage. And because there is a support structure to support the airtight inspection cover 2000, the sealing rubber strip is prevented from being squeezed and affecting the airtight effect, effectively improving the existing problems.

[0056] Among them, the support structure can be a sole base provided on the chassis 10, which has a groove that can exactly accommodate Figure 4The lower half of the airtight inspection cover 2000 shown. It can also be composed of an upper support assembly 90 and a bottom support assembly 110 as in this embodiment, jointly supporting the airtight inspection cover 2000 in a vertical placement state as Figure 4 generally.

[0057] Regarding the upper support assembly 90, please refer to Figure 5 and Figure 11 , in this embodiment, the upper support assembly 90 includes a support connecting piece 91, a support rod 92, a first positioning piece 93, and a second positioning piece 94. The support connecting piece 91 can be connected to the outer gantry in the following text. The upper support assemblies 90 are provided on both side columns of the outer door, and the support connecting pieces 91 of the two upper support assemblies 90 are symmetrically distributed. One end of the support rod 92 is connected to the support connecting piece 91, and a first card slot is provided at the other end of the support rod 92. The first positioning piece 93 is connected to the side wall of the support rod 92, and a first sliding groove is provided in the middle of the first positioning piece 93. The second positioning piece 94 is connected to the first positioning piece 93 through bolts and nuts. The second positioning piece 94 has a second sliding groove and also has a second card slot. The first card slot and the second card slot are used to accommodate Figure 5 the support cushion block 95 shown. The support cushion block 95 fits the outer wall contour of the airtight inspection cover 2000, which can increase the contact area and provide better support for the airtight inspection cover 2000. It should be noted that Figure 1 the support cushion block 95 is not shown in

[0058] but it does not mean that this component does not exist.

[0059] Regarding the bottom support assembly 110, please refer to Figure 1 and Figure 3 , the bottom support assembly 110 includes multiple ones, and the multiple bottom support assemblies are different in height. In this embodiment, the middle bottom support assembly 110 has a lower height, and the two on both sides have the same height and are symmetrically located. This can provide support in accordance with the circumferential contour of the airtight inspection cover 2000. Moreover, its card slot structure allows the airtight inspection cover 2000 to be tilted, so that the center of gravity of the airtight inspection cover 2000 falls on the airtight inspection cover parking and mounting trolley 1000, ensuring stability during storage. It should be noted that since the self-weight of the cover body of the airtight inspection cover 2000 is borne by the bottom support assembly 110, and the sealing strip only contacts the bottom support assembly 110 and will not be squeezed by the cover body, the sealing strip will not be deformed excessively and fail during the storage of the airtight inspection cover 2000.

[0060] In this embodiment, the lifting bracket 30 is rotatably arranged on the chassis 10 through a slewing mechanism. Considering the function of the slewing mechanism, it is more convenient to adjust the direction of the airtight inspection cover 2000 in the horizontal plane so as to facilitate docking with the inspection object.

[0061] Specifically, the slewing mechanism includes a support plate and a slewing bearing. The slewing bearing is arranged on the chassis 10, the support plate is arranged on the top of the slewing bearing, and the lifting bracket 30 is arranged on the support plate. Please refer to Figure 6 , the slewing bearing is composed of a slewing drive 131 and a rotating shaft 132, and can be rotated by a handle 133 at the end of the rotating shaft 132, or rotated by other driving devices, so as to control the rotation of the object carried on the slewing drive 131. The slewing bearing technology is mature and reliable, and is accurate when used to adjust the lifting bracket 30. With the support plate to increase the support area during support, the lifting bracket 30 can be adjusted on the premise of stably supporting it. Specifically, a slewing bearing of the worm and worm type with the model SE17 can be adopted. Its slewing support performance parameters are: output torque is 10 kN·m, overturning moment is 135.6 kN·m, axial static load is 970 kN, radial static load is 390 kN, axial dynamic load is 235 kN, radial dynamic load is 205 kN, and the effective diameter of its worm wheel is 526 mm. It can meet the current usage requirements. It can be understood that when the airtight inspection cover 2000 has other weights, it can also be calculated according to the situation and a suitable slewing bearing can be selected.

[0062] Among them, please refer to Figure 1 , an arc-shaped track groove 11 is also provided on the chassis 10. A guide shoe 140 is provided below the bottom of the outer gantry in the following text ( Figure 8 This structure is also shown in), a roller is provided at the end of the guide shoe 140, and the roller is embedded in the track groove. When the outer gantry is driven to rotate by the slewing bearing, the cooperation between the guide shoe 140 and the track groove can also make the rotation of the outer gantry smoother. The roller can reduce the friction force and make the rotation of the outer gantry smoother.

[0063] Among them, please refer to Figure 13 and Figure 14 , the chassis 10 of this embodiment includes a base 12, tires 13 and support leg frames 14.

[0064] The tires 13 are arranged at the bottom of the base 12, the lifting bracket 30 is arranged above the base 12, and the support leg frames 14 are foldably arranged on the base 12. The support leg frames 14 include a folded state and a support state. In the support state, the support leg frames 14 extend out and jointly support with the tires 13. On the one hand, the tires 13 can play a supporting role, and on the other hand, they can allow the base 12 to move. Combining with the auxiliary stabilizing effect of the support leg frames 14, it can ensure that the whole is more stable when hoisting the airtight inspection cover 2000 and does not tip over.

[0065] Specifically, in the schematic diagram of the present application, the support legs 14 are all in a folded state, and the four support legs 14 are respectively hinged to the four corners of the base 12. The folding and support of the support legs 14 can refer to the legs used in common cranes, and their operating principles are the same. To facilitate the movement of the base 12, a steering link mechanism 15 is provided on the front wheels, and a braking system 16 is configured. These are all common configurations, and those skilled in the art can set them according to requirements, which will not be elaborated here. In addition, a towing bar 17 can also be provided on the base 12 and towed by other driving devices to tow the entire airtight inspection cover parking mounting trolley 1000 to the working position. Of course, it can also be considered to replace the above-mentioned tires 13 with self-driven hub motors to complete the movement of the chassis 10 through its own drive.

[0066] Optionally, the chassis 10 can be designed into a structure that can rotate in place. For example, by adjusting the suspension of the tires, it can rotate in place when driving to drive the lifting bracket 30 to rotate. In this way, the adjustment of the direction of the airtight inspection cover 2000 can also be achieved.

[0067] In this embodiment, the lifting device 70 is a chain hoist. This is a mature and reliable small lifting device with a suitable volume and convenient and reliable operation, which is very suitable for adjusting the height of the airtight inspection cover 2000. Taking the commonly used 750 Kg airtight inspection cover 2000 as an example, a chain hoist with a rated lifting capacity of 2 T can be adapted to it, which is sufficient to meet the requirements for installing and storing the airtight inspection cover 2000.

[0068] Please refer to Figures 7 to 10 , specifically, in this embodiment, the lifting bracket 30 includes a first gantry 31 and a second gantry 32. The first gantry 31 is rotatably arranged on the chassis 10, the second gantry 32 is vertically movable on the first gantry 31, and the cantilever beam 50 is connected to the second gantry 32. Further, the second gantry 32 is vertically movable on the first gantry 31 through a lifting mechanism.

[0069] Among them, the lifting mechanism includes a lifting rope shaft 151, a lifting rope wheel mechanism, and a winch 153. The winch 153 is arranged at the bottom of the first gantry 31, the lifting rope wheel mechanism is arranged on the first gantry 31, the lifting rope shaft 151 is arranged on the second gantry 32, and the cable 1531 of the winch 153 is wound around the lifting rope wheel mechanism and connected to the lifting rope shaft 151. The lifting mechanism composed of the lifting rope shaft 151, the lifting rope wheel mechanism, and the winch 153 can be conveniently arranged according to the relative positional relationship between the first gantry 31 and the second gantry 32 to realize the vertical movement of the second gantry 32 relative to the first gantry 31. Among them, please refer to Figure 12, The winch 153 is composed of a reduction motor 1532, a mandrel 1533, and a drum 1534. The reduction motor 1532 is located at the bottom of the first gantry 31. A mandrel 1533 is connected to each of the two output ends on both sides of the reduction motor 1532. The mandrel 1533 is supported by a bearing block. The other end of the mandrel 1533 is connected to the drum 1534. The cable 1531 is connected to the drum 1534. By operating the reduction motor 1532, the drum 1534 can be controlled to wind or unwind the cable 1531. Among them, the direction of the cable 1531 indicates the direction during actual winding. The part where the end of the cable 1531 forms a loop is the schematic state when connected to the suspension rope shaft 151.

[0070] Specifically, both the first gantry 31 and the second gantry 32 are each a gantry frame formed by two left and right columns connected by a certain number of cross beams between the two columns. In this embodiment, the first gantry 31 is an outer gantry, and the second gantry 32 is an inner gantry.

[0071] The suspension rope wheel mechanism includes a first guide wheel 1521, a turning wheel 1522, and a second guide wheel 1523. The axis of rotation of the first guide wheel 1521 is parallel to the axis of rotation of the drum 1534. The axis of rotation of the turning wheel 1522 is perpendicular to the axis of rotation of the first guide wheel 1521. The axis of rotation of the turning wheel 1522 is parallel to the axis of rotation of the second guide wheel 1523. In this embodiment, the outer shape of the second guide wheel 1523 is approximately that of a roller.

[0072] The cable 1531 is wound from the drum 1534 around the first guide wheel 1521 below the outside of the outer gantry, then upwards around the turning wheel 1522, and then around the second guide wheel 1523. The turning wheel 1522 is located outside the columns of the outer gantry, and the second guide wheel 1523 is located inside the columns of the outer gantry. In this way, the end of the cable 1531 on the drum 1534 can be connected to the suspension rope shaft 151 on the column of the inner gantry. In addition, a third guide wheel 160 is also provided on the outer gantry. The circumference of the third guide wheel 160 contacts the column of the inner gantry, which can guide the inner gantry during the up and down movement of the inner gantry and reduce the friction during the guiding process.

[0073] Furthermore, the columns of the inner and outer gantries in this embodiment both adopt a C-shaped cross-section, and the assembly form is a CC side-by-side type. Low-alloy 16Mn steel can be used, so that the material specifications are single, which is convenient for purchasing and manufacturing the gantry. For example, the second gantry 32 is made of channel steel. Further, a reinforcing plate is provided inside the channel steel. Adding a reinforcing plate here can greatly improve the micro-bending deformation caused by the sudden increase in the suspended weight between the cantilever beam 50 and the second gantry 32, and relieve the fatigue deformation between the cantilever beam 50 and the second gantry 32 after the airtight inspection cover parking installation trolley 1000 has been used for a long time.

[0074] Among them, the upper parts of the two columns of the second gantry 32 are connected by rectangular steel pipes, and the cantilever beam 50 can be fixed on the rectangular steel pipes. This can not only increase the lateral stability of the inner gantry, but also increase the welding area with the cantilever beam 50 and reduce the tensile moment of the welded position of the cross beam caused by the lifted heavy object, avoiding the occurrence of cracking accidents at the welded parts. Specifically, there are two pairs of rectangular steel pipes, one pair on each of the left and right sides of the cantilever beam 50. Taking one pair as an example, a part of each rectangular steel pipe and the cantilever beam 50 are fixed by bolts, and the other part is welded to the steel plate. The steel plate and the top of the column of the inner gantry are bolted together.

[0075] Optionally, a plug plate mechanism is provided on the first gantry 31. The plug plate mechanism can support the second gantry 32 after the second gantry 32 rises to the in-place position. Through the supporting action of the plug plate mechanism, it can further ensure that when installing the airtight inspection cover 2000, the airtight inspection cover 2000 can be maintained at the required height, avoiding the unstable situation of the second gantry 32, ensuring the safety of the airtight inspection cover 2000 and the inspection object, and also ensuring the safety of the operator. In this embodiment, a gear-rack plug plate mechanism 170 is adopted. By turning the gear with a wrench, the rack can be extended. The rack can be used as a plug plate to support the bottom of the second gantry 32.

[0076] Among them, the outer gantry has an upper cross beam 312 and a middle cross beam. The shape of the upper cross beam 312 needs to consider avoiding the movement of the inner gantry, forming a unique outwardly winding shape. At the same time, in order to facilitate the operator to insert and remove the plug plate, a certain number of transverse rib plates are welded on the outer gantry, which can not only play a role in stabilizing the columns of the outer gantry, but also facilitate the operator to get on and off.

[0077] In this embodiment, after the second gantry 32 is raised, the bottom of the column of the second gantry 32 is directly supported by the plug plate mechanism, and then the airtight inspection cover 2000 is lifted and lowered by a chain hoist. Optionally, please combine Figure 7 and Figure 10 , a card hole 311 is provided on the outer gantry, and a locking component 325 is provided on the inner gantry. The locking component 325 includes a locking seat 3251, a locking adjustment bolt 3252 and a locking plug plate 3253. The locking seat 3251 is fixed to the inner gantry, the locking adjustment bolt 3252 is screwed to the locking seat 3251, and the locking plug plate 3253 is connected to the locking adjustment bolt 3252. After the inner gantry is lifted to the in-place position, first turn the locking adjustment bolt 3252 to make the locking plug plate 3253 extend and insert into the card hole 311 on the outer gantry, so that the inner gantry and the outer gantry remain relatively stable, and then adjust the plug plate mechanism to make the inner gantry get more stable support.

[0078] Of course, in order to make the lifting of the inner gantry more smooth, guide wheels 321 can also be provided on the columns of the inner gantry. At this time, the outer gantry can act as a guide rail. By reducing friction through the guide wheels 321, the movement of the inner gantry can be made smooth and wear between components can be reduced. Please refer to Figure 10 , in this embodiment, the guide wheel 321 is composed of a roller shaft 322, a forklift bearing 323 and a bearing gland 324. The roller shaft 322 is fixed to the inner gantry. The forklift bearing 323 is sleeved on the roller shaft 322. The bearing gland 324 is fixed to the roller shaft 322 by bolts and fixes the inner ring of the forklift bearing 323. The outer ring of the forklift bearing 323 is in rolling cooperation with the column of the outer gantry. The above-mentioned guide wheel 321 cooperates with the two opposite side walls of a single column of the outer gantry, and the connecting wall between the two side walls may also cause a certain amount of friction with the inner gantry. At this time, a roller 326 can be provided on the inner gantry. The rotation axis of the roller 326 is perpendicular to the rotation axis of the guide wheel 321, further improving the smoothness of the inner gantry during lifting.

[0079] Based on the airtight inspection cover parking and mounting trolley 1000 of any one of the above, an embodiment of the present application provides a mobile airtight inspection device, including an airtight inspection cover 2000 and an airtight inspection cover parking and mounting trolley 1000. The airtight inspection cover 2000 is placed in a vertical position on the chassis 10, and the lifting device 70 can hang the airtight inspection cover 2000. The mobile airtight inspection device can facilitate finding a location for storage in the factory building and can also be directly moved to the location where the inspection object is located as needed without interfering with other work in the factory building, making it very convenient to use.

[0080] The principle of this embodiment is:

[0081] In the current use of the airtight inspection cover 2000, it is necessary to use a bridge crane for lifting. However, other more important work in the factory building also requires the use of a bridge crane. In this way, on the one hand, the use of the airtight inspection cover 2000 will affect the development of other more important work, and on the other hand, it occupies the corresponding operating space and is not convenient for the development of other work.

[0082] There are corresponding work arrangements and space requirements for site use in the current factory building. Therefore, the current use of the airtight inspection cover 2000 quite increases the time consumption and will also delay the progress of other work.

[0083] In addition, during daily storage, the airtight inspection cover 2000 is buckled on the sleeper. After a long storage time, its sealing strip is not easy to deform or cannot return to the initial state, affecting the development of airtight inspection. And because of the inverted way, it is not convenient for daily maintenance and it is impossible to detect the inner surface condition of the airtight inspection cover 2000.

[0084] In view of this, the present application provides an airtight inspection cover parking and installation gantry 1000, which can lift the airtight inspection cover 2000 to facilitate airtight inspection, can also store the airtight inspection cover 2000 for convenient maintenance, and can prevent the sealing rubber strip from deforming, ensuring the reliability of airtight inspection.

[0085] In addition, the airtight inspection cover 2000 can also be directly and detachably connected to the hoisting device 70 and used as a mobile airtight inspection device, which is specifically used for airtight inspection of the cylinder body.

[0086] During daily storage, the second gantry 32 is in a lower position, and the upper support assembly 90 and the bottom support assembly 110 jointly support the airtight inspection cover 2000 to make it stand vertically. Since the position of the airtight inspection cover 2000 is relatively low, the entire airtight inspection cover parking and installation gantry 1000 and the airtight inspection cover 2000 can be stored stably without tipping over. Moreover, since the sealing rubber strip of the airtight inspection cover 2000 is not squeezed, the integrity of the sealing rubber strip is ensured. In addition, the airtight inspection cover parking and installation gantry 1000 can also transfer the airtight inspection cover 2000 without occupying the bridge crane according to the progress of other work in the workshop, which is very convenient to use.

[0087] When performing airtight inspection, first move the airtight inspection cover parking and installation gantry 1000 to near one end of the cylinder body, and then unfold the support leg frame 14 to make the support leg frame 14 enter the support state.

[0088] Then the winch 153 works to raise the second gantry 32. When the second gantry 32 is raised to the required position, the winch 153 keeps pulling to keep the position of the second gantry 32 unchanged. Then adjust the plug board of the plug board mechanism to the bottom of the column of the second gantry 32 to support the second gantry 32. Combining with the limiting support effect of the locking plug board 3253 inserted into the card hole 311 on the outer gantry, the stability of the second gantry 32 can be effectively ensured.

[0089] Then the chain hoist works. On the one hand, it can adjust the height of the airtight inspection cover 2000, and on the other hand, it can also make the airtight inspection cover 2000 move along the length direction of the cantilever beam 50 to adjust the horizontal position of the airtight inspection cover 2000 relative to the cylinder body to be tested.

[0090] If it is found that the orientation of the airtight inspection cover 2000 is not aligned with the cylinder body, the slewing mechanism can be driven to rotate the entire lifting support 30, so as to change the orientation of the airtight inspection cover 2000 to align it with the cylinder body to be tested. Then, the airtight inspection cover 2000 can be installed at one end of the cylinder body according to the conventional installation steps, and the corresponding airtight inspection operations can be carried out.

[0091] After the inspection is completed, disconnect the connection between the airtight inspection cover 2000 and the cylinder body, move the airtight inspection cover 2000 to a position closer to the second gantry 32 on the cantilever beam 50, further lower the airtight inspection cover 2000 with the chain hoist, then release the limit support of the plug plate mechanism, and the winch 153 works in reverse to lower the second gantry 32, finally returning the airtight inspection cover 2000 to its initial state. The parking and installation cart 1000 of the airtight inspection cover can then drive the airtight inspection cover 2000 back to the storage position in the factory area. It can be understood that for the elevation of the second gantry 32 and the operation of the chain hoist during the airtight inspection, etc., it can be controlled by the electric control box 1001, and the user only needs to press the corresponding operation keys. The electric control box 1001 is relatively common, and those skilled in the art can select and match it according to their needs, so it will not be elaborated here.

[0092] In summary, the parking and installation cart 1000 of the airtight inspection cover of the present application can drive the airtight inspection cover 2000 to rise and fall through the lifting device 70, comprehensively adjust the height of the airtight inspection cover 2000 through the lifting bracket 30, and adjust the horizontal position of the airtight inspection cover 2000 on the cantilever beam 50 to enable it to be docked with the cylinder body. In addition, it can conveniently store the airtight inspection cover 2000, avoid damage to the sealing strip of the airtight inspection cover 2000, and effectively improve the existing technical problems.

[0093] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. An airtight inspection cover parking and installation gantry vehicle, Characterized in that, Comprising: A chassis, a lifting bracket, a cantilever beam and a lifting device; The lifting bracket is rotatably arranged on the chassis, the cantilever beam is arranged on the lifting bracket and can be lifted under the drive of the lifting bracket, the lifting device is movably arranged on the cantilever beam, the airtight inspection cover in the vertical placement state can be stored on the chassis, and the lifting device is used for lifting the airtight inspection cover in the vertical placement state; The lifting bracket includes a first gantry and a second gantry, the first gantry is rotatably arranged on the chassis, the second gantry is liftably arranged on the first gantry, and the cantilever beam is connected to the second gantry; The airtight inspection cover parking and installation gantry vehicle further includes a support structure, the support structure includes an upper support assembly and a bottom support assembly, the upper support assembly is arranged on the first gantry and is used for supporting the upper outer wall of the airtight inspection cover in the vertical placement state, and the bottom support assembly is arranged on the chassis and is used for supporting the lower edge of the airtight inspection cover in the vertical placement state; There are multiple bottom support assemblies, and the heights of the multiple bottom support assemblies are different; The upper support assembly includes a support connecting piece, a support rod, a first positioning piece, and a second positioning piece. One end of the support rod is connected to the support connecting piece, the other end of the support rod is provided with a first card slot, the first positioning piece is connected to the side wall of the support rod, a first sliding slot is provided in the middle of the first positioning piece, the second positioning piece is connected to the first positioning piece through bolts and nuts, the second positioning piece has a second sliding slot and a second card slot, and the first card slot and the second card slot are used for accommodating support pads, and the support pads fit the outer wall contour of the airtight inspection cover.

2. The airtight inspection cover parking and installation gantry vehicle according to claim 1, Characterized in that, The second gantry is liftably arranged on the first gantry through a lifting mechanism; The lifting mechanism includes a hoisting rope shaft, a hoisting rope wheel mechanism and a winch. The winch is arranged on the first gantry, the hoisting rope wheel mechanism is arranged on the first gantry, the hoisting rope shaft is arranged on the second gantry, and the cable of the winch is wound around the hoisting rope wheel mechanism and connected to the hoisting rope shaft.

3. The airtight inspection cover parking and installation gantry vehicle according to claim 1, Characterized in that, An insertion plate mechanism is provided on the first gantry, and the insertion plate mechanism can support the second gantry after the second gantry rises in place.

4. The airtight inspection cover parking and installation gantry vehicle according to claim 1, Characterized in that, The lifting bracket is rotatably arranged on the chassis through a slewing mechanism.

5. The airtight inspection cover parking and installation gantry vehicle according to claim 4, Characterized in that, The slewing mechanism includes a support plate and a slewing bearing. The slewing bearing is arranged on the chassis, the support plate is arranged on the top of the slewing bearing, and the lifting bracket is arranged on the support plate.

6. The airtight inspection cover parking and installation gantry vehicle according to claim 1, Characterized in that, The lifting device is a chain hoist.

7. The airtight inspection cover parking and installation gantry vehicle according to claim 1, Characterized in that, The chassis includes a base, tires, and support legs; The tires are provided at the bottom of the base, the lifting bracket is provided above the base, the support legs are foldably provided on the base, the support legs include a folded state and a supporting state, and in the supporting state, the support legs extend out and jointly support with the tires.

8. A mobile airtight inspection device characterized in that it includes an airtight inspection cover and the airtight inspection cover parking and mounting trolley according to any one of claims 1-7, the airtight inspection cover is placed vertically on the chassis, and the lifting device can hang the airtight inspection cover.

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