Auxiliary mounting device for safety valve

Abstract

The utility model discloses an auxiliary mounting device for a safety valve, which comprises a mounting rack, a lifting frame movably arranged on the mounting rack, a lifting mechanism connected with the lifting frame, a first lifting rope arranged at the lower end of the lifting frame, three fixed pulleys arranged in the lifting frame, and a second lifting rope wound on the peripheries of the three fixed pulleys, the uppermost fixed pulley is connected with a first motor; the upper end of the safety valve is connected with the first lifting rope, the two sides of the safety valve are correspondingly connected to the second lifting ropes, the lower end of the safety valve is provided with a connecting flange, a plurality of threaded rods are distributed on the circumference of the connecting flange, the lower end of each threaded rod is in threaded connection with a first gear, and the threaded rods move in the vertical direction relative to the first gears. The multiple first gears are in meshing transmission with a circular rack, and the circular rack is connected with a driving assembly. The safety valve auxiliary installation device of the structure can complete gravity center centering of the safety valve, can drive the multiple threaded rods to move synchronously, and accelerates the installation efficiency of the safety valve.

Description

Technical Field

[0001] The utility model relates to the technical field of safety valve installation, in particular to an auxiliary installation device for a safety valve. Background Art

[0002] At present, installing a safety valve means correctly assembling the safety valve into a pressure vessel, pipeline or other system that requires pressure protection to ensure that the system can release excess pressure in a timely and effective manner when overpressure occurs, thereby preventing the equipment or system from exploding or being damaged due to excessive pressure, which is beneficial to protecting personnel safety and equipment integrity.

[0003] However, during the installation process, safety valves are connected using multiple bolts, requiring users to rotate the bolts one by one, which is time-consuming, labor-intensive, and inefficient. Furthermore, due to the lack of proper centering of the safety valve's center of gravity, the connection surface of the safety valve can easily tilt, causing the bolt axis to be misaligned with the mounting hole of the device being assembled, thus affecting the subsequent safety valve installation efficiency. Utility Model Content

[0004] In view of the above shortcomings, the utility model proposes a safety valve auxiliary installation device, which can not only align the center of gravity of the safety valve for assembly, but also drive multiple threaded rods to move synchronously, which is conducive to speeding up the installation efficiency of the safety valve.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The cam is secured to the bottom of the frame, and the cam has a first end secured to the bottom of the frame, and a second end secured to the bottom of the frame for rotation.

[0007] According to the safety valve auxiliary installation device of the embodiment of the present utility model, there are at least the following beneficial effects: when in use, the safety valve is connected to the first lifting rope and the second lifting rope, and then the first motor drives the fixed pulley located at the top to rotate forward and reverse, thereby driving the two ends of the second lifting rope to be at the same height position, which can not only drive the connecting surface of the safety valve to be set horizontally, which is conducive to the axis of the threaded rod and the installation hole of the equipment to be assembled to be colinear, but also complete the center of gravity centering operation of the safety valve, so that the gravity of the safety valve is evenly distributed on both sides of the first lifting rope and the second lifting rope, and then operate the driving component to make the circular rack drive the multiple first gears to rotate synchronously, so that the multiple threaded rods move downward to pass through the installation hole of the equipment to be assembled, and finally, only the locking nut needs to be tightened on the threaded rod to complete the connection and fixation of the safety valve and the equipment, which is conducive to improving the installation efficiency of the safety valve.

[0008] Furthermore, the driving assembly includes a second motor, the output end of the first motor is connected to a second gear, and the second gear is in driving engagement with the outer sides of the plurality of first gears and the circular rack.

[0009] Furthermore, an annular groove is provided on the outer peripheral wall of the circular rack, and a plurality of rotating balls are rotatably mounted on the circular rack. The plurality of rotating balls are circumferentially distributed inside the annular groove, and the rotating balls roll and abut against the inner wall of the connecting flange.

[0010] Furthermore, the lifting mechanism includes a rotating roller, which is rotatably arranged horizontally on the mounting frame. One end of the rotating roller is transmission-connected to a third motor. A pull rope is wrapped around the outer wall of the rotating roller. The lower end of the pull rope is connected to the hanging frame. The fixed pulley at the top is located on the extension line of the pull rope.

[0011] Furthermore, the mounting frame includes a vertical rod, a first mounting frame and a second mounting frame, the first mounting frame and the second mounting frame are distributed along the same horizontal plane, the first mounting frame is arranged at the upper end of the vertical rod, the second mounting frame is connected to the vertical rod through a diagonal rod, and the rotating roller is rotatably arranged on the first mounting frame and the second mounting frame.

[0012] Furthermore, the mounting frame also includes a base, the lower end of the vertical rod is connected to the base, the upper surface of the base is provided with a counterweight box, and the lower end surface of the base is provided with moving wheels.

[0013] Furthermore, there are four moving wheels, which are distributed on the base in a rectangular shape.

[0014] Furthermore, a hook is provided at the lower end of the pull rope, and a mounting ring that matches the hook is provided at the upper end of the hanging frame.

[0015] Furthermore, a nut is provided at the upper end of the threaded rod, a guide rod is provided on the nut along the vertical direction, and a guide hole is provided on the connecting flange to match the guide rod.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 This is a structural schematic diagram of an embodiment of a safety valve auxiliary installation device of the present utility model;

[0019] Figure 2 for Figure 1 A schematic diagram of the internal structure of the hanging frame;

[0020] Figure 3 for Figure 1 Structural diagram of threaded rod assembled with connecting flange;

[0021] Figure 4 for Figure 3 A schematic diagram of the structure with some parts removed;

[0022] Figure 5 for Figure 1 Schematic diagram of the lifting mechanism.

[0023] In the figure: mounting frame 100, vertical rod 110, first mounting frame 120, second mounting frame 130, diagonal rod 140, base 150, counterweight box 160, control panel 161, moving wheel 170, hanging frame 200, mounting ring 201, first lifting rope 210, fixed pulley 220, first motor 221, second lifting rope 230, lifting mechanism 300, rotating roller 310, third motor 320, pull rope 330, hook 331, safety valve 400, connecting flange 500, threaded rod 510, nut 511, guide rod 512, first gear 520, circular rack 530, annular groove 531, rotating bead 532, second motor 600, second gear 610. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings of the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that the terms "inside", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the product of the present invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as a limitation on the present invention.

[0026] In the description of this utility model, "several" means one or more, "multiple" means more than two, "greater than," "less than," and "exceed" are understood to be exclusive of the number itself, while "above," "below," and "within" are understood to be inclusive of the number itself. The terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

[0027] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0028] See also Figures 1 to 5A safety valve auxiliary installation device includes: a mounting frame 100, the mounting frame 100 is movably provided with a hanging frame 200, the hanging frame 200 is connected to a lifting mechanism 300 that drives it to move in a vertical direction, a first hanging rope 210 is provided at the lower end of the hanging frame 200, and three fixed pulleys 220 are built into the hanging frame 200. The three fixed pulleys 220 form an isosceles triangle structure, a second hanging rope 230 is provided around the outer circumference of the three fixed pulleys 220, and the uppermost fixed pulley 220 is connected to a first motor 221; a safety valve 400, the upper end of the safety valve 400 is connected to the first hanging rope 210, The two sides of the safety valve 400 are correspondingly connected to the second lifting rope 230. The lower end of the safety valve 400 is provided with a connecting flange 500. A plurality of threaded rods 510 are distributed circumferentially around the connecting flange 500. The lower end of each threaded rod 510 is threadedly connected to a first gear 520. The threaded rod 510 moves in a vertical direction relative to the first gear 520. The plurality of first gears 520 are meshed with a circular rack 530. The circular rack 530 is connected to a driving assembly that drives it to rotate. When the circular rack 530 drives the plurality of first gears 520 to rotate, the plurality of threaded rods 510 move back and forth in the vertical direction.

[0029] When the safety valve auxiliary installation device with the above structure is used, the safety valve 400 is connected to the first lifting rope 210 and the second lifting rope 230, and then the first motor 221 drives the fixed pulley 220 at the top to rotate, thereby driving the two ends of the second lifting rope 230 to be at the same height position, which not only drives the connecting surface of the connecting flange 500 to be set horizontally, which is conducive to the axis of the threaded rod 510 being colinear with the installation hole of the equipment to be assembled, but also completes the center of gravity alignment operation of the safety valve 400, so that the gravity of the safety valve 400 is evenly distributed to the first lifting rope 210 and the second lifting rope 230, and then operates the driving assembly, so that the circular rack 530 drives the multiple first gears 520 to rotate synchronously, so that the multiple threaded rods 510 move downward to pass through the installation hole of the equipment to be assembled, and finally, only the lock nut needs to be tightened on the threaded rod 510 to complete the connection and fixation of the safety valve 400 and the equipment, which is conducive to improving the installation efficiency of the safety valve 400.

[0030] See also Figure 1 and Figure 2 It can be understood that the three fixed pulleys 220 are arranged in an isosceles triangle, and loops are provided at both ends of the second lifting rope 230. The two loops are hung on both sides of the safety valve 400. There are two first lifting ropes 210. The uppermost fixed pulley 220 is located at the symmetrical center line of the two first lifting ropes 210, so that the center of gravity of the safety valve 400 and the uppermost fixed pulley 220 are arranged collinearly, so that the gravity of the safety valve 400 can be evenly distributed to the first lifting rope 210 and the second lifting rope 230, thereby improving the stability of subsequent lifting of the safety valve 400.

[0031] See also Figure 1、 Figure 3 and Figure 4 Furthermore, the drive assembly includes a second motor 600. The output end of the first motor 221 is connected to a second gear 610. The second gear 610 is in driving engagement with the outer sides of the multiple first gears 520 and the circular rack 530. Specifically, when the second motor 600 is in operation, the second gear 610 drives the circular rack 530 to rotate, causing the multiple first gears 520 to rotate synchronously under force, thereby driving the multiple threaded rods 510 to rise and fall in the vertical direction, which facilitates the installation of the safety valve 400. It is understood that there are two connecting flanges 500, which are respectively fixedly connected to the bottom and side of the safety valve 400. The side of the safety valve 400 is a valve, so the fixing of the safety valve 400 and the connection of the valve are completed through the connecting flanges 500, which will not be described in detail here.

[0032] See also Figure 3 and Figure 4 Furthermore, an annular groove 531 is defined on the outer circumferential wall of the circular rack 530. A plurality of rotating balls 532 are rotatably mounted on the circular rack 530. The plurality of rotating balls 532 are circumferentially distributed within the annular groove 531. The rotating balls 532 roll against the inner wall of the connecting flange 500, facilitating rolling friction between the circular rack 530 and the connecting flange 500, thereby improving the smoothness of the rotation of the circular rack 530. It is understood that the connecting flange 500 has a mounting cavity, the bottom of which is provided with a cylindrical portion. The circular rack 530 has a through hole that rotatably engages with the cylindrical portion. A mounting space for mounting components such as the circular rack 530 and the first gear 520 is formed between the outer circumferential wall of the cylindrical portion and the sidewall of the mounting cavity.

[0033] See also Figure 1 and Figure 5 Furthermore, the lifting mechanism 300 includes a rotating roller 310, which is rotatably mounted horizontally on the mounting frame 100. One end of the rotating roller 310 is connected to a third motor 320. A pull rope 330 is wound around the outer wall of the rotating roller 310. The lower end of the pull rope 330 is connected to the hanging frame 200, and the uppermost fixed pulley 220 is located on the extension line of the pull rope 330. Specifically, the third motor 320 drives the rotating roller 310 to rotate, thereby winding the pull rope 330 to drive the hanging frame 200 to rise and fall. This structure is simple and easy to install. The uppermost fixed pulley 220 is located on the extension line of the pull rope 330, so that the center of gravity of the safety valve 400 is aligned with the pull rope 330, further improving the smoothness of the lifting and lowering of the safety valve 400.

[0034] See also Figure 1 and Figure 5Furthermore, the mounting frame 100 includes a vertical rod 110, a first mounting frame 120, and a second mounting frame 130. The first mounting frame 120 and the second mounting frame 130 are arranged along the same horizontal plane. The first mounting frame 120 is located at the upper end of the vertical rod 110. The second mounting frame 130 is connected to the vertical rod 110 via a diagonal rod 140. The rotating roller 310 is rotatably mounted on the first mounting frame 120 and the second mounting frame 130. Specifically, the vertical rod 110, the first mounting frame 120, and the second mounting frame 130 form a triangular structure, which helps to improve the structural strength of the mounting frame 100 and thereby ensure the stability of the installation of the rotating roller 310. Among them, the upper end of the vertical rod 110 is provided with a cavity, and the third motor 320 is built into the cavity. The first mounting frame 120 is bolted to the upper end of the vertical rod 110. The third motor 320 is connected to the rotating roller 310 via a bevel gear reducer. The bevel gear reducer is located in the first mounting frame 120 to change the direction of torque transmission.

[0035] See also Figure 1 Furthermore, the mounting frame 100 also includes a base 150, the lower end of the vertical rod 110 is connected to the base 150, the upper surface of the base 150 is provided with a counterweight box 160, and the lower end surface of the base 150 is provided with a moving wheel 170. Specifically, the provision of the moving wheel 170 can facilitate people to move the device to the area to be assembled. The provision of the counterweight box 160 can prevent the device from tipping over, thereby stabilizing the placement of the mounting frame 100. Among them, the counterweight box 160 is provided with a control panel 161, and the control panel 161 is electrically connected to the first motor 221, the second motor 600 and the third motor 320. Each motor can be controlled through the control panel 161, thereby improving people's user experience.

[0036] See also Figure 1 Furthermore, four moving wheels 170 are provided, arranged in a rectangular pattern on the base 150. This evenly distributes the weight of the mounting frame 100 across the four moving wheels 170, improving the smooth movement of the device. It is understood that the moving wheels 170 can be conventional universal wheels with a locking mechanism. After the device is moved, the locking mechanism restricts the rotation of the universal wheels, thereby stabilizing the device's position.

[0037] See also Figure 1 and Figure 5 Furthermore, a hook 331 is provided at the lower end of the pull rope 330, and a mounting ring 201 is provided at the upper end of the hanging frame 200 that cooperates with the hook 331, so that the hanging frame 200 is hung on the mounting ring 201 through the hook 331, which simplifies the installation of the hanging frame 200 and is also convenient for subsequent disassembly of the hanging frame 200 for maintenance.

[0038] See also Figure 3Furthermore, a nut 511 is provided at the upper end of the threaded rod 510. A guide rod 512 is provided vertically on the nut 511, and a guide hole is provided on the connecting flange 500 to mate with the guide rod 512. Specifically, a first gear 520 is threadedly engaged with the threaded rod 510. Under the action of the threads and the guidance of the guide rod 512, the threaded rod 510 can translate vertically relative to the first gear 520, thereby enabling the threaded rod 510 to be more easily inserted into the mounting hole of the device to be assembled.

[0039] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0040] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A safety valve auxiliary installation device, characterized in that: include: A mounting frame (100) is provided with a movably mounted hanging frame (200), the hanging frame (200) is connected to a lifting mechanism (300) for driving the hanging frame (200) to move in a vertical direction, a first hanging rope (210) is provided at the lower end of the hanging frame (200), three fixed pulleys (220) are built into the hanging frame (200), the three fixed pulleys (220) are surrounded by an isosceles triangle structure, a second hanging rope (230) is provided around the outer periphery of the three fixed pulleys (220), and the uppermost fixed pulley (220) is connected to a first motor (221); A safety valve (400), the upper end of the safety valve (400) is connected to the first lifting rope (210), and the two sides of the safety valve (400) are correspondingly connected to the second lifting rope (230). The lower end of the safety valve (400) is provided with a connecting flange (500), and the connecting flange (500) is circumferentially distributed with a plurality of threaded rods (510), and the lower end of each threaded rod (510) is threadedly connected to a first gear (520), and the threaded rod (510) moves in a vertical direction relative to the first gear (520), and the plurality of first gears (520) are meshed with a circular rack (530), and the circular rack (530) is connected to a driving assembly that drives it to rotate. When the circular rack (530 drives the plurality of first gears (520) to rotate, the plurality of threaded rods (510) move back and forth in the vertical direction.

2. The safety valve auxiliary installation device according to claim 1, characterized in that: The driving assembly includes a second motor (600), the output end of the second motor (600) is connected to a second gear (610), and the second gear (610) is in driving engagement with the outer sides of the plurality of first gears (520) and the circular rack (530).

3. The auxiliary installation device for a safety valve according to claim 1, characterized in that: An annular groove (531) is provided on the outer peripheral wall of the circular rack (530), and a plurality of rotating balls (532) are rotatably mounted on the circular rack (530). The plurality of rotating balls (532) are circumferentially distributed inside the annular groove (531), and the rotating balls (532) are in rolling contact with the inner wall of the connecting flange (500).

4. The auxiliary installation device for a safety valve according to claim 1, characterized in that: The lifting mechanism (300) includes a rotating roller (310), which is rotatably arranged horizontally on the mounting frame (100), one end of the rotating roller (310) is connected to a third motor (320), a pull rope (330) is wound around the outer wall of the rotating roller (310), the lower end of the pull rope (330) is connected to the hanging frame (200), and the fixed pulley (220) at the top is located on the extension line of the pull rope (330).

5. The auxiliary installation device for a safety valve according to claim 4, characterized in that: The mounting frame (100) comprises a vertical rod (110), a first mounting frame (120) and a second mounting frame (130), wherein the first mounting frame (120) and the second mounting frame (130) are distributed along the same horizontal plane, the first mounting frame (120) is arranged at the upper end of the vertical rod (110), the second mounting frame (130) is connected to the vertical rod (110) through an oblique rod (140), and the rotating roller (310) is rotatably arranged on the first mounting frame (120) and the second mounting frame (130).

6. The auxiliary installation device for a safety valve according to claim 5, characterized in that: The mounting frame (100) further includes a base (150), the lower end of the vertical rod (110) is connected to the base (150), a counterweight box (160) is provided on the upper surface of the base (150), and a moving wheel (170) is provided on the lower end surface of the base (150).

7. The auxiliary installation device for a safety valve according to claim 6, characterized in that: There are four moving wheels (170), and the four moving wheels (170) are distributed on the base (150) in a rectangular shape.

8. The auxiliary installation device for a safety valve according to claim 4, characterized in that: The lower end of the pull rope (330) is provided with a hook (331), and the upper end of the hanging frame (200) is provided with a mounting ring (201) that matches the hook (331).

9. The auxiliary installation device for a safety valve according to claim 1, characterized in that: The upper end of the threaded rod (510) is provided with a nut (511), the nut (511) is provided with a guide rod (512) in the vertical direction, and the connecting flange (500) is provided with a guide hole matched with the guide rod (512).

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