A fastening fixture applicable to tower-type metal pressure vessels

Abstract

The present invention discloses a fastening fixture applicable to a tower-type metal pressure vessel, which relates to the technical field of fastening fixtures and includes a first mounting seat, a second mounting seat, a connecting shaft, two pressure vessels arranged between the first mounting seat and the second mounting seat, and connecting flanges. The connecting shaft is movably installed between the first mounting seat and the second mounting seat. The two pressure vessels are arranged one above the other. The two connecting flanges are arranged between the two pressure vessels and are respectively fixedly connected to the two connecting flanges. A plurality of fixing bolts are movably installed between the two connecting flanges through threads, and fixing nuts are movably installed on the fixing bolts through threads. Multiple groups of fastening mechanisms are uniformly arranged on the first mounting seat and the second mounting seat at positions corresponding to the fixing bolts; the fastening mechanism includes a clamping seat, an oil cylinder body, and a force-applying shaft. The present invention can clamp connecting flanges of different sizes while making the clamping more firm.

Description

Technical Field

[0001] The present invention relates to the technical field of fastening fixtures, and particularly to a fastening fixture suitable for a tower-type metal pressure vessel. Background Art

[0002] The fastening mechanism of a tower-type pressure vessel is a key component for fixing, connecting or supporting the vessel, ensuring the stability and safety of the vessel during installation, operation and maintenance.

[0003] After retrieving the Chinese patent with the publication number CN113458699A, a fastening fixture suitable for a metal pressure vessel is disclosed, which includes a base. Two symmetrically arranged annular seats are provided on the upper side of the base, and a clamping mechanism is rotatably fitted in the annular seats. This patent uses the clamping mechanisms on the left and right sides to clamp and fix the two halves of the gas tank respectively. Under the action of six clamping wheel seats moving inward simultaneously, the two halves of the gas tank on the left and right sides can be quickly and accurately centered, ensuring that the two halves of the gas tank on the left and right sides can be accurately butted during welding. At the same time, driven by the clamping rotating seat, the gas tanks on the left and right sides rotate together, facilitating subsequent welding work. Moreover, the distance that the clamping wheel seat moves inward can be adjusted by a lead screw, thereby realizing the clamping and fixing of gas tanks with different diameters.

[0004] However, the above invention has the following deficiencies:

[0005] The above invention supports the pressure vessel installed in the horizontal direction, and at the same time, the device applies a clamping force to the pressure vessel through the force of the thread. However, if the pressure is prone to vibration, the vibration is likely to cause the thread to displace and rotate. At this time, the clamping force will decrease due to the force of the displacement and rotation, and then the stability of the pressure vessel will decline, making it inconvenient to use. Summary of the Invention

[0006] The purpose of the present invention is to provide a fastening fixture suitable for a tower-type metal pressure vessel to solve the problems raised in the above background art.

[0007] The technical solution of the present invention is: a fastening fixture suitable for a tower-type metal pressure vessel, which includes a first mounting seat, a second mounting seat, a connecting shaft, and two pressure vessels and a connecting flange arranged between the first mounting seat and the second mounting seat. The connecting shaft is movably installed between the first mounting seat and the second mounting seat. The two pressure vessels are arranged vertically. The two connecting flanges are arranged between the two pressure vessels and are respectively fixedly connected to the two pressure vessels. A plurality of fixing bolts are movably installed between the two connecting flanges through threads, and fixing nuts are movably installed on the fixing bolts through threads. Multiple groups of fastening mechanisms are uniformly arranged on the first mounting seat and the second mounting seat at positions corresponding to the fixing bolts;

[0008] The fastening mechanism includes a clamping seat, an oil cylinder body, a force-applying shaft, clamping blocks and a cylinder. The opening of the clamping seat faces the position of the connecting flange. The oil cylinder body is embedded and installed inside the first mounting seat and the second mounting seat. The force-applying shaft is movably installed inside the oil cylinder body, and is fixedly connected between the force-applying shaft and the clamping seat. There are two clamping blocks, and the two clamping blocks are symmetrically arranged up and down inside the clamping seat. There are multiple cylinders, and the multiple cylinders are respectively fixedly installed on the upper and lower wall surfaces of the clamping seat. The output end of the cylinder is fixedly connected to the clamping block. A locking mechanism is also provided on the clamping seat, and the oil cylinder body is connected with a driving mechanism.

[0009] Preferably, the driving mechanism includes an oil tank, a first oil inlet pipe, a check valve, a second oil inlet pipe, a sealing plate and a first sealing member. The force-applying shaft is fixedly installed at the bottom of the first mounting seat and the second mounting seat corresponding to the clamping seat. The inside of the force-applying shaft is filled with hydraulic oil. The first oil inlet pipe is fixedly installed on the top of the oil tank and is located inside the first mounting seat and the second mounting seat. The check valve is embedded and installed on the oil cylinder body. The first oil inlet pipe is connected to the check valve, and the first oil inlet pipe is communicated with the inside of the oil cylinder body through the check valve. The second oil inlet pipe is fixedly installed on the side of the top of the oil tank away from the first oil inlet pipe, and the second oil inlet pipe is communicated with the left side inside the oil cylinder body. The sealing plate is fixedly installed on the force-applying shaft, and the first sealing member is embedded and installed on the side wall of the sealing plate. The sealing plate is in interference fit with the oil cylinder body through the first sealing member. A pressurizing mechanism is provided between the clamping seat and the force-applying shaft.

[0010] Preferably, the pressurizing mechanism includes a pressurizing rod, a second sealing member and a pressing plate. Pressurizing ports are opened on the force-applying shaft and the sealing plate. The pressurizing rod is movably installed inside the pressurizing port. The second sealing member is embedded and installed on the side wall of the pressurizing rod. A placing groove is opened on the inner wall of the clamping seat. One end of the pressurizing rod penetrates through the side wall of the clamping seat and is located inside the placing groove. A spring is sleeved on the end of the pressurizing rod located inside the placing groove, and the pressing plate is fixedly installed on the pressurizing rod.

[0011] Preferably, the locking mechanism includes two groups of locking blocks, a locking seat, a torsion spring shaft, a locking block, a rotating block, a pressing block and a connecting rod. The two fastening mechanisms are respectively arranged inside the two clamping blocks. The locking block is movably installed on the clamping block. Locking grooves are opened inside the two locking blocks. The locking grooves are regular octagon structures adapted to the fixing bolts and fixing nuts. The locking grooves are used to fix the fixing bolts and fixing nuts. Positioning grooves are opened on the locking blocks corresponding to the locking grooves. The positioning grooves are octagon grooves that gradually become larger near the fixing bolts and fixing nuts.

[0012] Preferably, the locking seat is movably mounted on the locking block. A plurality of reset grooves are formed inside the locking seat. There are a plurality of torsion spring shafts, and the torsion spring shafts are movably mounted inside the reset grooves. The locking block is fixedly sleeved on the torsion spring shafts. The rotating block is movably mounted inside the locking seat. The extrusion block is fixedly mounted on the side wall of the rotating block. The connecting rod is fixedly mounted between the rotating block and the locking block, and the locking blocks and the extrusion blocks inside the upper and lower locking seats are mounted in opposite directions.

[0013] Preferably, a connecting mechanism is provided between the first mounting seat and the second mounting seat. The connecting mechanism includes two mounting grooves, a connecting block, a limiting groove, a movable groove and a movable rod. Connecting grooves are respectively formed on the upper and lower sides at one end of the first mounting seat. One end of the first mounting seat is located inside the connecting groove. The two mounting grooves are respectively formed on the upper and lower sides inside the connecting groove. The two connecting blocks are respectively movably mounted inside the two mounting grooves, and the inclined surfaces of the two connecting blocks face to the right. The two limiting grooves are respectively formed inside the connecting groove at positions corresponding to the two connecting blocks. One ends of the two connecting blocks are respectively located inside the two limiting grooves. The two movable grooves are respectively formed inside the two mounting grooves. The two movable rods are respectively movably mounted inside the two movable grooves and are fixedly connected to the connecting blocks. Springs are sleeved on the movable rods.

[0014] Preferably, the connecting mechanism further includes a rack groove, a transmission rack, a transmission groove, a rotating shaft, a transmission gear and a knob. There are two rack grooves, and the two rack grooves are respectively formed inside the two mounting grooves. There are two transmission racks, and the two transmission racks are respectively movably mounted inside the two rack grooves and are fixedly connected to the two connecting blocks. The transmission groove is a groove with a rectangular structure. The transmission groove is formed inside the first mounting seat and communicates with the two rack grooves. The transmission gear is fixedly sleeved on the rotating shaft at a position corresponding to the transmission rack. The transmission gear meshes with the two transmission racks for transmission. The knob is fixedly mounted on the rotating shaft and is located on the outer side wall of the first mounting seat.

[0015] Preferably, a supporting mechanism is provided at the bottom of the first mounting seat. The supporting mechanism includes a first base, a second base, a clamping seat, a clamping block, a clamping groove, a hydraulic support rod and a pressing ring. The first base is arranged below the first mounting seat. The second base is movably mounted inside the first base, and the second base can move inside the first base. The clamping seat is fixedly mounted on one side wall surface of the first base. The clamping block is fixedly mounted at one end of the second base, and the clamping block is located inside the clamping seat.

[0016] Preferably, clamping grooves are formed on both the clamping seat and the clamping block. There are three hydraulic support rods. One of the hydraulic support rods is fixedly mounted on the top of the first base, and the other two hydraulic support rods are fixedly mounted on the bottom wall surface of the second mounting seat. The pressing ring is fixedly mounted on the output end located inside the clamping groove.

[0017] Preferably, the output end of one of the hydraulic support rods on the base one is movably connected to the mounting seat one, and the output end of the other hydraulic support rod is located inside the card slot.

[0018] The present invention provides an improved fastening fixture applicable to a tower-type metal pressure vessel. Compared with the prior art, it has the following improvements and advantages:

[0019] First: By setting the fastening mechanism in the present invention, after the mounting seat one and the mounting seat two are closed, the clamping seat can be moved between the two connecting flanges. Then, the cylinder is started, and the cylinder drives the plurality of clamping blocks to move up or down, so as to clamp the two connecting flanges up and down. At the same time, the side wall of the clamping seat contacts the connecting flange, and the two connecting flanges can be horizontally clamped between the plurality of clamping seats, thereby achieving the effect of firmly supporting pressure vessels and connecting flanges of different sizes.

[0020] Second: The present invention is provided with a driving mechanism and a pressurizing mechanism. The oil tank sends hydraulic oil into the interior of the cylinder body through the first oil inlet pipe and the check valve. As the hydraulic oil increases, the sealing plate drives the force-applying shaft to move inside the cylinder body, so as to drive the clamping seat to move towards the pressure vessel and the connecting flange. First, the pressing plate contacts the side wall of the connecting flange, and the pressing plate is squeezed by the connecting flange and moves into the placement groove, further driving the pressurizing rod to move inside the pressurizing port. Since the pressurizing port is communicated with the interior of the cylinder body, when the pressurizing rod moves inside the pressurizing port, it will pressurize the interior of the cylinder body again. The pressure inside the cylinder body becomes larger, and at this time, the squeezing force of the force-applying shaft and the clamping seat on the pressure vessel and the connecting flange will also be greater, so that while being able to clamp connecting flanges of different sizes, the clamping is also more firm.

[0021] Third: By setting a locking mechanism in the present invention, when the positions of the pressurizing port and the fixing bolt and the fixing nut do not correspond, the larger positioning groove enables the fixing bolt and the fixing nut to first move into the positioning groove. As the locking block moves, the squeezing between the locking block and the fixing bolt and the fixing nut causes the locking block to rotate. After the locking block rotates, the fixing bolt and the fixing nut can move into the locking groove. While achieving the effect of fixing the fixing bolt and the fixing nut to prevent them from falling off, it also achieves the effect of automatic alignment.

[0022] Fourth: By setting a connecting mechanism in the present invention, when it is necessary to separate the mounting seat one and the mounting seat two, the knob can be rotated. The knob drives the rotating shaft and the transmission gear to rotate, and the transmission gear meshes with the transmission rack for transmission. The transmission rack will move inside the rack groove, thereby driving the base one to leave the interior of the base two, and then the mounting seat one and the mounting seat two can be separated, achieving the effect of facilitating the fixed connection and separation of the mounting seat one and the mounting seat two.

[0023] Fifthly: With the support mechanism provided in the present invention, when the hydraulic support rod is activated, the hydraulic support rod can drive the first mounting seat and the second mounting seat to move up and down, so as to firmly support the pressure vessel and the connecting flange at different height positions. At the same time, the output end of the hydraulic support rod is moved into the card slot, and then the first base and the second base can be fixedly connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 is the overall structural schematic diagram of the present invention;

[0026] Figure 2 is the internal cross-sectional view of a part of the present invention;

[0027] Figure 3 is the structural schematic diagram of the driving mechanism of the present invention;

[0028] Figure 4 is in the present invention Figure 2 the enlarged view at A;

[0029] Figure 5 is the structural schematic diagram of the locking block of the present invention;

[0030] Figure 6 is the structural schematic diagram of the locking mechanism of the present invention;

[0031] Figure 7 is the structural schematic diagram of the connecting mechanism of the present invention;

[0032] Figure 8 is in the present invention Figure 7 the enlarged view at B.

[0033] Reference numerals:

[0034] 1. Mount one; 2. Mount two; 3. Connecting shaft; 4. Pressure vessel; 5. Connecting flange; 6. Fixing bolt; 7. Fixing nut; 8. Clamping seat; 9. Cylinder block; 10. Force-applying shaft; 11. Fuel tank; 12. First oil inlet pipe; 13. Check valve; 14. Second oil inlet pipe; 15. Sealing plate; 16. First seal; 17. Clamping block; 18. Cylinder; 19. Locking block; 20. Locking groove; 21. Positioning groove; 22. Locking seat; 23. Reset groove; 24. Torsion spring shaft; 25. Limiting block; 26. Rotating block; 27. Extrusion block; 28. Connecting rod; 29. Pressurizing port; 30. Pressurizing rod; 31. Second seal; 32. Placing groove; 33. Pressing plate; 34. Connecting groove; 35. Mounting groove; 36. Connecting block; 37. Limiting groove; 38. Moving groove; 39. Moving rod; 40. Rack groove; 41. Transmission rack; 42. Transmission groove; 43. Rotating shaft; 44. Transmission gear; 45. Knob; 46. First base; 47. Second base; 48. Clamping seat; 49. Clamping block; 50. Clamping groove; 51. Hydraulic support rod; 52. Pressing ring. Detailed implementation mode

[0035] The present invention will be described in detail below. The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0036] The present invention provides an improved fastening fixture applicable to a tower-type metal pressure vessel herein. The technical solution of the present invention is as follows:

[0037] As Figure 1 and Figure 2 shown, the embodiment of the present invention provides a fastening fixture applicable to a tower-type metal pressure vessel, including a mount one 1, a mount two 2, a connecting shaft 3, a pressure vessel 4 disposed between the mount one 1 and the mount two 2, and a connecting flange 5. Both the mount one 1 and the mount two 2 are semi-circular ring structures. The connecting shaft 3 is movably installed between the mount one 1 and the mount two 2. The mount one 1 and the mount two 2 can be flipped and moved with the connecting shaft 3 as the base point. There are two pressure vessels 4 and two connecting flanges 5. The two pressure vessels 4 are arranged up and down. The two connecting flanges 5 are disposed between the two pressure vessels 4 and are respectively fixedly connected to the two pressure vessels 4. A plurality of fixing bolts 6 are movably installed between the two connecting flanges 5 by threads. The fixing bolts 6 penetrate the upper and lower wall surfaces of the connecting flange 5. Fixing nuts 7 are movably installed on the fixing bolts 6 by threads. Multiple fastening mechanisms are uniformly arranged on the mount one 1 and the mount two 2 at positions corresponding to the fixing bolts 6;

[0038] As Figures 1 to 4As shown in the figure, the fastening mechanism includes a clamping seat 8, an oil cylinder body 9, a force application shaft 10, clamping blocks 17, and a cylinder 18. The clamping seat 8 is a hollow "C" - shaped structure, and the opening of the clamping seat 8 faces the position of the connecting flange 5. The oil cylinder body 9 is a hollow structure and is embedded and installed inside the first mounting seat 1 and the second mounting seat 2. The force application shaft 10 is movably installed inside the oil cylinder body 9, and the force application shaft 10 is fixedly connected to the clamping seat 8. The oil cylinder body 9 is connected to a driving mechanism. The clamping blocks 17 are arc - shaped blocks, and there are two clamping blocks 17 in total. The two clamping blocks 17 are symmetrically arranged up and down inside the clamping seat 8. There are multiple cylinders 18 in total, and the multiple cylinders 18 are respectively fixedly installed on the upper and lower wall surfaces of the clamping seat 8. The output end of the cylinder 18 is fixedly connected to the clamping block 17. A locking mechanism is also provided on the clamping seat 8. When the first mounting seat 1 and the second mounting seat 2 are closed, the clamping seat 8 can be moved between the two connecting flanges 5. Subsequently, the cylinder 18 is started, and the cylinder 18 drives the multiple clamping blocks 17 to move up or down, so as to clamp the two connecting flanges 5 up and down. At the same time, the side wall of the clamping seat 8 contacts the connecting flange 5, and the two connecting flanges 5 can be horizontally clamped through the multiple clamping seats 8, thus achieving the effect of firmly supporting pressure vessels 4 and connecting flanges 5 of different sizes;

[0039] The driving mechanism includes an oil tank 11, a first inlet pipe 12, a check valve 13, a second inlet pipe 14, a sealing plate 15, and a first seal 16. The force application shaft 10 is fixedly installed at the bottom of the first mounting seat 1 and the second mounting seat 2 corresponding to the position of the clamping seat 8. The inside of the force application shaft 10 is filled with hydraulic oil. The first inlet pipe 12 is fixedly installed on the top of the oil tank 11 and is located inside the first mounting seat 1 and the second mounting seat 2. The check valve 13 is embedded and installed on the oil cylinder body 9. The first inlet pipe 12 is connected to the check valve 13, and the first inlet pipe 12 is communicated with the inside of the oil cylinder body 9 through the check valve 13. The second inlet pipe 14 is fixedly installed on the top of the oil tank 11 on the side far from the first inlet pipe. The second inlet pipe 14 is communicated with the left side inside the oil cylinder body 9. The sealing plate 15 is a circular plate with the same size as the inside of the oil cylinder body 9. The sealing plate 15 is fixedly installed on the force application shaft 10. The first seal 16 is an annular structure, and the first seal 16 is embedded and installed on the side wall of the sealing plate 15. The sealing plate 15 is in interference fit with the oil cylinder body 9 through the first seal 16. A pressurizing mechanism is provided between the clamping seat 8 and the force application shaft 10. Through the setting of the driving mechanism, the oil tank 11 sends hydraulic oil into the inside of the oil cylinder body 9 through the first inlet pipe 12 and the check valve 13. As the hydraulic oil increases, the sealing plate 15 will drive the force application shaft 10 to move inside the oil cylinder body 9, so as to drive the clamping seat 8 to move towards the pressure vessel 4 and the connecting flange 5;

[0040] The pressing mechanism includes a pressing rod 30, a second seal 31, and a pressing plate 33. Pressing ports 29 are formed on the force-applying shaft 10 and the sealing plate 15. The pressing ports 29 are circular grooves. The pressing rod 30 is of a cylindrical structure and is movably installed inside the pressing ports 29. The second seal 31 is of an annular structure and is embedded on the side wall of the pressing rod 30. A placement groove 32 is formed on the inner wall of the clamping seat 8. The placement groove 32 is a circular groove. One end of the pressing rod 30 penetrates through the side wall of the clamping seat 8 and is located inside the placement groove 32. A spring is sleeved on the end of the pressing rod 30 located inside the placement groove 32. The pressing plate 33 is a circular plate and is fixedly installed on the pressing rod 30. Through the setting of the pressing mechanism, when hydraulic oil is injected into the inside of the oil cylinder body 9 and the clamping seat 8 squeezes the connecting flange 5, first, the pressing plate 33 will contact the side wall of the connecting flange 5, and the pressing plate 33 will be squeezed by the connecting flange 5 and move toward the inside of the placement groove 32, thereby driving the pressing rod 30 to move inside the pressing port 29. Since the pressing port 29 is communicated with the inside of the oil cylinder body 9, when the pressing rod 30 moves inside the pressing port 29 at this time, it will press the inside of the oil cylinder body 9 again, and the pressure inside the oil cylinder body 9 will increase. At this time, the squeezing force of the force-applying shaft 10 and the clamping seat 8 on the pressure vessel 4 and the connecting flange 5 will also be greater. Thus, while being able to clamp connecting flanges 5 of different sizes, the clamping is also made more firm.

[0041] Such as Figure 2 , Figure 5 and Figure 6As shown in the figure, the locking mechanism consists of two sets of locking blocks 19, locking seats 22, torsion spring shafts 24, limit blocks 25, rotating blocks 26, extrusion blocks 27 and connecting rods 28. The two fastening mechanisms are respectively arranged inside the two clamping blocks 17. The locking block 19 is of a circular structure and is movably installed on the clamping block 17. Locking grooves 20 are opened inside both of the two locking blocks 19. The locking groove 20 is a regular octagon structure adapted to the fixing bolt 6 and the fixing nut 7. The locking groove 20 is used to fix the fixing bolt 6 and the fixing nut 7. Positioning grooves 21 are opened at the positions corresponding to the locking grooves 20 on the locking block 19. The positioning groove 21 is an octagonal groove that gradually becomes larger near the fixing bolt 6 and the fixing nut 7. When the clamping block 17 presses down on the connecting flange 5, the locking block 19 will move onto the fixing bolt 6 and the fixing nut 7. The fixing bolt 6 and the fixing nut 7 can be fixed through the locking groove 20, preventing the fixing bolt 6 and the fixing nut 7 from rotating and falling off due to the vibration generated during the operation of the pressure vessel 4 and the connecting flange 5. And by providing the positioning groove 21, when the positions of the locking groove 20 and the fixing bolt 6 and the fixing nut 7 do not correspond, the larger positioning groove 21 allows the fixing bolt 6 and the fixing nut 7 to first move into the positioning groove 21. As the locking block 19 moves, the extrusion between the locking block 19 and the fixing bolt 6 and the fixing nut 7 can cause the locking block 19 to rotate. After the locking block 19 rotates, the fixing bolt 6 and the fixing nut 7 can move into the locking groove 20. While achieving the effect of fixing the fixing bolt 6 and the fixing nut 7 to prevent them from falling off, it also achieves the effect of automatic alignment;

[0042] The locking seat 22 is of a hollow cylindrical structure and is movably installed on the locking block 19. A plurality of reset grooves 23 are opened inside the locking seat 22. The reset groove 23 is of an arc-shaped triangular structure. The torsion spring shaft 24 is of a cylindrical structure. There are a plurality of torsion spring shafts 24, and the torsion spring shafts 24 are movably installed inside the reset grooves 23. The limit block 25 is of a triangular structure, and the limit block 25 is fixedly sleeved on the torsion spring shaft 24. The rotating block 26 is of a circular structure, and the rotating block 26 is movably installed inside the locking seat 22. The extrusion block 27 is of a triangular structure, and the extrusion block 27 is fixedly installed on the side wall of the rotating block 26. The connecting rod 28 is fixedly installed between the rotating block 26 and the locking block 19. And the installation directions of the limit blocks

[0043] As Figure 7 and Figure 8 shown, a connecting mechanism is provided between the first mounting seat 1 and the second mounting seat 2. The connecting mechanism includes two mounting grooves 35, a connecting block 36, a limiting groove 37, a movable groove 38 and a movable rod 39. Connecting grooves 34 are respectively opened on the upper and lower sides of one end of the first mounting seat 1. The connecting groove 34 is a groove with a rectangular structure. One end of the first mounting seat 1 is located inside the connecting groove 34. The mounting groove 35 is a groove with a rectangular structure. The two mounting grooves 35 are respectively opened on the upper and lower sides inside the connecting groove 34. The connecting block 36 is a block with a trapezoidal structure. The two connecting blocks 36 are respectively movably installed inside the two mounting grooves 35, and the inclined surfaces of the two connecting blocks 36 face to the right. The limiting groove 37 is a groove with a rectangular structure. The two limiting grooves 37 are respectively opened at positions corresponding to the two connecting blocks 36 inside the connecting groove 34. One ends of the two connecting blocks 36 are respectively located inside the two limiting grooves 37. The movable groove 38 is a cylindrical groove. The two movable grooves 38 are respectively opened inside the two mounting grooves 35. The movable rod 39 is a cylindrical structure. The two movable rods 39 are respectively movably installed inside the two movable grooves 38 and fixedly connected to the connecting block 36. Springs are sleeved on the movable rods 39. Through the arrangement of the connecting mechanism, when the first mounting seat 1 and the second mounting seat 2 are moved to the outside of the pressure vessel 4 and the connecting flange 5, the first mounting seat 1 and the second mounting seat 2 can be buckled together, so that one end of the first mounting seat 1 is inserted into the inside of the connecting groove 34. At this time, the inclined surface of the connecting block 36 will contact the second mounting seat 2, so that the connecting block 36 is squeezed and moves into the inside of the mounting groove 35, and at the same time, the spring on the movable rod 39 is squeezed. Subsequently, the spring releases elastic force, so that the connecting block 36 can move into the inside of the limiting groove 37. At this time, the first mounting seat 1 and the second mounting seat 2 will be fixedly connected, and then the pressure vessel 4 and the connecting flange 5 can be firmly supported;

[0044] The connecting mechanism further includes a rack groove 40, a transmission rack 41, a transmission groove 42, a rotating shaft 43, a transmission gear 44 and a knob 45. The rack groove 40 is a groove with a rectangular structure. There are two rack grooves 40, and the two rack grooves 40 are respectively opened inside the two mounting grooves 35. The transmission rack 41 has a rectangular structure. There are two transmission racks 41, and the two transmission racks 41 are respectively movably installed inside the two rack grooves 40 and fixedly connected to the two connecting blocks 36. The transmission groove 42 is a groove with a rectangular structure. The transmission groove 42 is opened inside the first mounting seat 1 and communicates with the two rack grooves 40. The rotating shaft 43 has a cylindrical structure. The transmission gear 44 is fixedly sleeved on the rotating shaft 43 at a position corresponding to the transmission rack 41. The transmission gear 44 meshes and transmits with the two transmission racks 41. The knob 45 is fixedly installed on the rotating shaft 43 and is located on the outer side wall of the first mounting seat 1. When it is necessary to separate the first mounting seat 1 and the second mounting seat 2, the knob 45 can be rotated. The knob 45 drives the rotating shaft 43 and the transmission gear 44 to rotate. Since the transmission gear 44 meshes and transmits with the transmission rack 41, the transmission rack 41 will move inside the rack groove 40, thereby driving the first base 46 to leave the inside of the second base 47, and then the first mounting seat 1 and the second mounting seat 2 can be separated, achieving the effect of facilitating the fixed connection and separation of the first mounting seat 1 and the second mounting seat 2.

[0045] Such as Figure 1As shown, a support mechanism is provided at the bottom of the first mounting seat 1. The support mechanism includes a first base 46, a second base 47, a clamping seat 48, a clamping block 49, a clamping groove 50, a hydraulic support rod 51, and a pressing ring 52. The first base 46 is a hollow arc-shaped structure and is arranged below the first mounting seat 1. The second base 47 is an arc-shaped strip and is movably installed inside the first base 46. The second base 47 can move inside the first base 46. The clamping seat 48 is a hollow rectangular structure and is fixedly installed on one side wall surface of the first base 46. The clamping block 49 is a rectangular block and is fixedly installed at one end of the second base 47. The clamping block 49 is located inside the clamping seat 48. The clamping seat 48 and the clamping block 49 are both provided with clamping grooves 50. The clamping groove 50 is a cylindrical groove. There are three hydraulic support rods 51 in total. One of the hydraulic support rods 51 is fixedly installed on the top of the first base 46, and the other two hydraulic support rods 51 are both fixedly installed on the bottom wall surface of the second mounting seat 2. The output end of one of the hydraulic support rods 51 on the first base 46 is movably connected to the first mounting seat 1, and the output end of the other hydraulic support rod 51 is located inside the clamping groove 50. The pressing ring 52 is a circular ring structure and is fixedly installed on the output end located inside the clamping groove 50. Through the setting of the support mechanism, when the hydraulic support rod 51 is started, the hydraulic support rod 51 can drive the first mounting seat 1 and the second mounting seat 2 to move up and down, so as to tightly support the pressure vessel 4 and the connecting flange 5 at different height positions. At the same time, the output end of the hydraulic support rod 51 is moved into the clamping groove 50, and then the first base 46 and the second base 47 can be fixedly connected.

[0046] Specific implementation steps: When the first mounting seat 1 and the second mounting seat 2 are closed, the clamping seat 8 can be moved between the two connecting flanges 5. Then, the cylinder 18 is started, and the cylinder 18 drives the plurality of clamping blocks 17 to move up or down, so as to clamp the two connecting flanges 5 up and down. At the same time, the side wall of the clamping seat 8 contacts the connecting flange 5, and the two connecting flanges 5 can be horizontally clamped between the plurality of clamping seats 8, so as to achieve the effect of tightly supporting the pressure vessel 4 and the connecting flange 5 of different sizes.

[0047] A driving mechanism and a pressing mechanism are simultaneously provided. The oil tank 11 sends hydraulic oil into the interior of the cylinder body 9 through the first oil inlet pipe 12 and the check valve 13. As the hydraulic oil increases, the sealing plate 15 drives the force-applying shaft 10 to move inside the cylinder body 9, thereby driving the clamping seat 8 to move towards the pressure vessel 4 and the connecting flange 5. First, the pressing plate 33 contacts the side wall of the connecting flange 5, and the pressing plate 33 is squeezed by the connecting flange 5 and moves into the placement groove 32, further driving the pressing rod 30 to move inside the pressing port 29. Since the pressing port 29 is communicated with the interior of the cylinder body 9, when the pressing rod 30 moves inside the pressing port 29, it will pressurize the interior of the cylinder body 9 again. The pressure inside the cylinder body 9 increases, and at this time, the squeezing force of the force-applying shaft 10 and the clamping seat 8 on the pressure vessel 4 and the connecting flange 5 will also be greater. Thus, while being able to clamp connecting flanges 5 of different sizes, the clamping is also made more secure.

[0048] The above description enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fastening fixture applicable to a tower-type metal pressure vessel, comprising a first mounting seat (1), a second mounting seat (2), a connecting shaft (3), two pressure vessels (4) arranged between the first mounting seat (1) and the second mounting seat (2), and a connecting flange (5). The connecting shaft (3) is movably installed between the first mounting seat (1) and the second mounting seat (2). The two pressure vessels (4) are arranged vertically. The two connecting flanges (5) are arranged between the two pressure vessels (4) and are respectively fixedly connected to the two pressure vessels (4), and it is characterized in that: A plurality of fixing bolts (6) are movably installed between the two connecting flanges (5) by means of threads, and fixing nuts (7) are movably installed on the fixing bolts (6) by means of threads. A plurality of groups of fastening mechanisms are uniformly arranged on the mounting base one (1) and the mounting base two (2) at positions corresponding to the fixing bolts (6). The fastening mechanism includes a clamping seat (8), an oil cylinder body (9), a force-applying shaft (10), clamping blocks (17), and a cylinder (18). The opening of the clamping seat (8) faces the position of the connecting flange (5). The oil cylinder body (9) is embedded and installed inside the mounting base one (1) and the mounting base two (2). The force-applying shaft (10) is movably installed inside the oil cylinder body (9). The force-applying shaft (10) is fixedly connected to the clamping seat (8). There are two clamping blocks (17) in total. The two clamping blocks (17) are symmetrically arranged up and down inside the clamping seat (8). There are a plurality of cylinders (18) in total. The plurality of cylinders (18) are respectively fixedly installed on the upper and lower wall surfaces of the clamping seat (8). The output end of the cylinder (18) is fixedly connected to the clamping block (17). A locking mechanism is also arranged on the clamping seat (8). The oil cylinder body (9) is connected with a driving mechanism, and the driving mechanism is used to convey hydraulic oil into the oil cylinder body (9) to drive the force-applying shaft (10) to move. The locking mechanism includes two groups of locking blocks (19), a locking seat (22), a torsion spring shaft (24), a limiting block (25), a rotating block (26), a pressing block (27), and a connecting rod (28). The two groups of fastening mechanisms are respectively arranged inside the two clamping blocks (17). The locking blocks (19) are movably installed on the clamping blocks (17). Locking grooves (20) are opened inside the two locking blocks (19). The locking grooves (20) are regular octagon structures adapted to the fixing bolts (6) and the fixing nuts (7). The locking grooves (20) are used to fix the fixing bolts (6) and the fixing nuts (7). Positioning grooves (21) are opened at positions corresponding to the locking grooves (20) on the locking blocks (19). The positioning grooves (21) are octagon grooves that gradually become larger near the fixing bolts (6) and the fixing nuts (7). The locking seat (22) is movably installed on the locking block (19). A plurality of reset grooves (23) are opened inside the locking seat (22). There are a plurality of torsion spring shafts (24) in total. The torsion spring shafts (24) are movably installed inside the reset grooves (23). The limiting blocks (25) are fixedly sleeved on the torsion spring shafts (24). The rotating block (26) is movably installed inside the locking seat (22). The pressing block (27) is fixedly installed on the side wall of the rotating block (26). The connecting rod (28) is fixedly installed between the rotating block (26) and the locking block (19), and the limiting blocks (25) and the pressing blocks (27) inside the upper and lower two locking seats (22) are installed in opposite directions.

2. The fastening fixture applicable to a tower-type metal pressure vessel according to claim 1, wherein: The driving mechanism includes an oil tank (11), a first inlet pipe (12), a check valve (13), a second inlet pipe (14), a sealing plate (15) and a first seal (16). The force application shaft (10) is fixedly installed at the bottom of the first mounting seat (1) and the second mounting seat (2) corresponding to the position of the clamping seat (8). The inside of the force application shaft (10) is filled with hydraulic oil. The first inlet pipe (12) is fixedly installed at the top of the oil tank (11) and is located inside the first mounting seat (1) and the second mounting seat (2). The check valve (13) is embedded in the cylinder block (9). The first inlet pipe (12) is connected to the check valve (13), and the first inlet pipe (12) is communicated with the inside of the cylinder block (9) through the check valve (13). The second inlet pipe (14) is fixedly installed on one side of the top of the oil tank (11) away from the first inlet pipe (12), and the second inlet pipe (14) is communicated with the left side inside the cylinder block (9). The sealing plate (15) is fixedly installed on the force application shaft (10), and the first seal (16) is embedded on the side wall of the sealing plate (15). The sealing plate (15) is in interference fit with the cylinder block (9) through the first seal (16). A pressurizing mechanism is arranged between the clamping seat (8) and the force application shaft (10).

3. The fastening fixture applicable to the tower-type metal pressure vessel according to claim 2, wherein: The pressurizing mechanism includes a pressurizing rod (30), a second seal (31) and a pressing plate (33). A pressurizing port (29) is opened on the force application shaft (10) and the sealing plate (15). The pressurizing rod (30) is movably installed inside the pressurizing port (29). The second seal (31) is embedded on the side wall of the pressurizing rod (30). A placing groove (32) is opened on the inner wall of the clamping seat (8). One end of the pressurizing rod (30) penetrates through the side wall of the clamping seat (8) and is located inside the placing groove (32). A spring is sleeved on the end of the pressurizing rod (30) located inside the placing groove (32). The pressing plate (33) is fixedly installed on the pressurizing rod (30).

4. A fastening fixture applicable to a tower-type metal pressure vessel according to claim 1, characterized in that: A connecting mechanism is arranged between the first mounting seat (1) and the second mounting seat (2). The connecting mechanism includes two mounting grooves (35), a connecting block (36), a limiting groove (37), a movable groove (38) and a movable rod (39). Connecting grooves (34) are opened on both the upper and lower sides of one end of the first mounting seat (1). One end of the first mounting seat (1) is located inside the connecting grooves (34). The two mounting grooves (35) are respectively opened on the upper and lower sides inside the connecting grooves (34). The two connecting blocks (36) are respectively movably installed inside the two mounting grooves (35), and the inclined surfaces of the two connecting blocks (36) face to the right. The two limiting grooves (37) are respectively opened on the inside of the connecting grooves (34) corresponding to the two connecting blocks (36). One end of each of the two connecting blocks (36) is respectively located inside the two limiting grooves (37). The two movable grooves (38) are respectively opened inside the two mounting grooves (35). The two movable rods (39) are respectively movably installed inside the two movable grooves (38) and are fixedly connected to the connecting blocks (36). Springs are sleeved on the movable rods (39).

5. The fastening fixture for a tower-type metal pressure vessel according to claim 4, characterized in that: The connecting mechanism further includes a rack groove (40), a transmission rack (41), a transmission groove (42), a rotating shaft (43), a transmission gear (44), and a knob (45). There are two rack grooves (40), and the two rack grooves (40) are respectively opened inside the two mounting grooves (35). There are two transmission racks (41), and the two transmission racks (41) are respectively movably installed inside the two rack grooves (40) and fixedly connected to the two connecting blocks (36). The transmission groove (42) is a groove with a rectangular structure. The transmission groove (42) is opened inside the first mounting seat (1) and communicated with the two rack grooves (40). The transmission gear (44) is fixedly sleeved on the rotating shaft (43) at the position corresponding to the transmission rack (41). The transmission gear (44) meshes with the two transmission racks (41) for transmission. The knob (45) is fixedly installed on the rotating shaft (43) and located on the outer side wall of the first mounting seat (1).

6. The fastening fixture applicable to the tower-type metal pressure vessel according to claim 1, wherein: A support mechanism is provided at the bottom of the first mounting seat (1). The support mechanism includes a first base (46), a second base (47), a card seat (48), a card block (49), a card slot (50), a hydraulic support rod (51), and a pressure ring (52). The first base (46) is arranged below the first mounting seat (1). The second base (47) is movably installed inside the first base (46), and the second base (47) can move inside the first base (46). The card seat (48) is fixedly installed on one side wall surface of the first base (46). The card block (49) is fixedly installed at one end of the second base (47), and the card block (49) is located inside the card seat (48).

7. The fastening fixture for a tower-type metal pressure vessel according to claim 6, characterized in that: Card slots (50) are opened on both the card seat (48) and the card block (49). There are three hydraulic support rods (51). One of the hydraulic support rods (51) is fixedly installed on the top of the first base (46), and the other two hydraulic support rods (51) are both fixedly installed on the bottom wall surface of the second mounting seat (2). The pressure ring (52) is fixedly installed on the output end located inside the card slot (50).

8. The fastening fixture for a tower-type metal pressure vessel according to claim 6, characterized in that: The output end of the hydraulic support rod (51) on one of the first bases (46) is movably connected to the first mounting seat (1), and the output end of the other hydraulic support rod (51) is located inside the card slot (50).

Images