Large-load spring device

Abstract

The utility model discloses a large-load spring device, which belongs to the technical field of thermal stress pipelines and comprises a sleeve component and a positioning component, the sleeve component comprises a top plate, a sleeve wall and a flange cover; a long spring is arranged in the cylinder wall, the bottom of the long spring is connected with a spring base, the spring base is connected with a hanging rod through a nut, the top of the hanging rod is connected to the shaft part of the top plate in a penetrating mode, and the top end of the hanging rod is connected with a hanging hook; the shaft portion of the flange cover is connected with a pull rod in a penetrating mode, the top of the pull rod is fixedly connected with the flange cover through a nut, and the bottom of the pull rod is connected with a hook. The positioning assembly is connected with the hook and comprises a pin shaft sleeve, and a positioning pin shaft is arranged in the pin shaft sleeve; by means of the design, supporting tension can be provided for the movable pipeline, and self-adaptive adjustment can be conducted according to the height change generated by thermal expansion of the movable pipeline.

Description

Technical Field

[0001] The utility model belongs to the technical field of thermal stress pipelines, and in particular relates to a large-load spring device. Background Art

[0002] In engineering construction, especially in the application of large thermal pipelines, due to the high temperature of the fluid in the pipeline, large temperature stress will be generated during operation. In order to cope with this temperature stress, the design often requires the relevant pipeline to be disconnected and not directly connected to the relevant fixed components. This design results in a large load on the movable pipeline. Moreover, as the temperature changes, the length of the movable pipeline will also change. Therefore, this section of the movable pipeline needs certain support to ensure safety.

[0003] However, conventional movable pipe support devices typically only provide support and lack firm fixation, posing a certain risk. Furthermore, due to thermal expansion and contraction of the movable pipe, the movable pipe may slide on the support frame, causing damage to the movable pipe and the support frame, shortening the life of the movable pipe. In other words, existing movable pipe support devices are unable to adaptively adjust to the thermal expansion response of the movable pipe.

[0004] In view of the deficiencies in the prior art, the utility model provides a large-load spring device, aiming to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a large-load spring device that can provide supporting tension for a movable pipe and can adaptively adjust according to the height change of the movable pipe caused by thermal expansion.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A high-load spring device includes a sleeve assembly and a positioning assembly; wherein,

[0008] The sleeve assembly includes a top plate, a cylinder wall and a flange cover; a long spring is provided in the cylinder wall, the bottom of the long spring is connected to a spring base, the spring base is connected to a suspension rod through a nut, the top of the suspension rod is passed through the shaft portion connected to the top plate, and the top end of the suspension rod is connected to a hook; a pull rod is passed through the shaft portion of the flange cover, the top of the pull rod is connected and fixed to the flange cover through a nut, and the bottom of the pull rod is connected to a hook;

[0009] The positioning assembly is connected to the hook, and the positioning assembly includes a pin sleeve, and a positioning pin is provided in the pin sleeve.

[0010] Preferably, it further comprises a fixing ring, which is arranged on the outer periphery of the movable pipe, and a pair of positioning grooves are opened on two symmetrical sides of the fixing ring, and the positioning grooves are adapted to the positioning pin shaft for engaging and connecting with the positioning pin shaft.

[0011] Preferably, it further comprises a lifting lug and a stiffening plate, wherein the lifting lug is connected to the lifting hook, and the stiffening plate is connected to the lifting lug.

[0012] Preferably, it further comprises a gasket, which is arranged between the nut and the flange cover.

[0013] Preferably, the sleeve assembly and the positioning assembly are each provided in pair.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The utility model first designs a sleeve assembly, which is composed of a top plate, a cylinder wall and a flange cover. A long spring is arranged inside the cylinder wall, providing a structure that can withstand large loads. When the movable pipe expands or contracts thermally, the automatic adjustment of the long spring maintains a relative balance between the tension and gravity, that is, adaptive adjustment is achieved, thereby reducing friction and damage between the movable pipe and the bracket; secondly, a positioning assembly and a fixing ring are introduced. The positioning assembly includes a pin sleeve and a positioning pin. The fixing ring is arranged on the outer periphery of the movable pipe and is connected to the positioning pin through the adaptive engagement of the positioning groove, thereby enhancing the stability and positioning accuracy of the device, ensuring that the movable pipe can accurately cooperate with the support device when thermally expanded or contracted. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view of the present utility model.

[0017] Figure 2 It is a front view of a partial structure of the utility model.

[0018] Figure 3 It is a top view of a partial structure of the utility model.

[0019] in:

[0020] 10. Hook; 11. Lifting rod; 2. Sleeve assembly; 21. Top plate; 22. Cylinder wall; 23. Long spring; 24. Spring base; 25. Flange cover; 26. Nut; 27. Pad; 30. Pull rod; 31. Hook; 4. Positioning assembly; 40. Pin sleeve; 41. Positioning pin; 5. Fixing ring; 51. Positioning groove; 6. Movable pipe; 7. Lifting ear; 8. Stiffening plate. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are not intended to limit the scope of protection of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0023] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," 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 communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0024] refer to Figure 1-Figure 3 This embodiment provides a large-load spring device, including a sleeve assembly 2 and a positioning assembly 4; wherein,

[0025] The sleeve assembly 2 includes a top plate 21, a cylinder wall 22 and a flange cover 25; a long spring 23 is provided in the cylinder wall 22, the bottom of the long spring 23 is connected to a spring base 24, the spring base 24 is connected to the suspension rod 11 through a nut 26, the top of the suspension rod 11 is passed through the shaft portion connected to the top plate 21, and the top of the suspension rod 11 is connected to the hook 10; the shaft portion of the flange cover 25 is passed through and connected to the pull rod 30, the top of the pull rod 30 is connected and fixed to the flange cover 25 by a nut 26, and the bottom of the pull rod 30 is connected to the hook 31;

[0026] It should be noted that a threaded section is provided at the bottom of the suspension rod 11 for threaded connection with the nut 26; a threaded section is also provided at the top of the pull rod 30 for threaded connection with the nut 26; after the threaded connection is completed, the threaded section of the nut 26 and the suspension rod 11 are spot welded, and at the same time, the threaded section of the nut 26 and the pull rod 30 are also spot welded.

[0027] The positioning assembly 4 is connected to the hook 31 . The positioning assembly 4 includes a pin sleeve 40 . A positioning pin 41 is provided in the pin sleeve 40 .

[0028] As is known, the positioning pin 41 and the pin sleeve 40 can be connected and fixed by structures such as a nut 26 and a flat washer, and unnecessary details are not given here.

[0029] Furthermore, it also includes a fixing ring 5, which is arranged on the outer periphery of the movable pipe 6, and a pair of positioning grooves 51 are opened on the two symmetrical sides of the fixing ring 5, and the positioning grooves 51 are adapted to the positioning pin shaft 41 for engagement and connection with the positioning pin shaft 41.

[0030] It should be noted that the outer periphery of the fixing ring 5 and the movable pipe 6 are welded into a whole, and corresponding threaded holes (not marked in the figure) are left on the fixing ring 5 to facilitate the subsequent assembly installation.

[0031] Based on the structural design of the fixing ring 5 , the device provides a mechanism for fixing the movable pipe 6 and allowing its thermal expansion and displacement through the adaptive engagement of the positioning groove 51 and the positioning pin shaft 41 .

[0032] In order to enhance the strength and rigidity of the entire device and ensure stability and reliability when bearing large loads, in this embodiment, a lifting lug 7 and a stiffening plate 8 are also included. The lifting lug 7 is connected to the hook 10, and the stiffening plate 8 is connected to the lifting lug 7.

[0033] In order to reduce direct contact between the nut 26 and the flange cover 25 and extend the service life of the device, in this embodiment, a gasket 27 is further included. The gasket 27 is provided between the nut 26 and the flange cover 25 .

[0034] In order to enhance the balance and stability of the device, especially to better maintain the stability of the movable pipe 6 when bearing asymmetric loads, in this embodiment, the sleeve assembly 2 and the positioning assembly 4 are each provided with a pair.

[0035] Working principle: When in use, first fix the movable pipe 6 and the corresponding fixed ring 5 through the positioning pin 41, and then hang the hook 10 on the ear 7. At this time, the long spring 23 will generate an elastic force due to compression. Figure 1 It can be seen that the entire supporting device will generate an elastic force on the long spring 23 due to stretching, and when the movable pipe 6 moves upward due to thermal expansion, the long spring 23 automatically adjusts to maintain a relative balance between the tension and gravity. When the movable pipe 6 moves upward due to thermal expansion, the long spring 23 automatically adjusts to maintain a relative balance between the tension and gravity.

[0036] As is known, after being heated, the length of the movable pipe 6 increases, the center of gravity of the movable pipe 6 moves upward, and the supporting force of the fixed point of the movable pipe 6 on the movable pipe 6 moves upward to maintain the balance of force.

[0037] In summary, the present invention can effectively support large thermal movable pipes 6 through the unique design of this large-load spring device, adapt to the thermal expansion and contraction of the movable pipes 6 caused by temperature changes, reduce damage between the movable pipes 6 and the supporting device, and improve the safety and reliability of the movable pipe 6 system.

[0038] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A high-load spring device, characterized in that: It comprises a sleeve assembly (2) and a positioning assembly (4); wherein, The sleeve assembly (2) includes a top plate (21), a cylinder wall (22) and a flange cover (25); a long spring (23) is provided in the cylinder wall (22); the bottom of the long spring (23) is connected to a spring base (24); the spring base (24) is connected to a suspension rod (11) through a nut (26); the top of the suspension rod (11) is passed through the shaft portion connected to the top plate (21), and the top of the suspension rod (11) is connected to a hook (10); the shaft portion of the flange cover (25) is passed through the pull rod (30), the top of the pull rod (30) is connected and fixed to the flange cover (25) through a nut (26), and the bottom of the pull rod (30) is connected to a hook (31); The positioning assembly (4) is connected to the hook (31), and the positioning assembly (4) comprises a pin sleeve (40), wherein a positioning pin (41) is provided in the pin sleeve (40).

2. The high-load spring device according to claim 1, characterized in that: The invention also includes a fixing ring (5), which is arranged on the outer periphery of the movable pipe (6), and a pair of positioning grooves (51) are opened on two symmetrical sides of the fixing ring (5), and the positioning grooves (51) are adapted to the positioning pin shaft (41) and are used for engaging and connecting with the positioning pin shaft (41).

3. The high-load spring device according to claim 1, characterized in that: It also includes a lifting lug (7) and a stiffening plate (8), wherein the lifting lug (7) is connected to the lifting hook (10), and the stiffening plate (8) is connected to the lifting lug (7).

4. The high-load spring device according to claim 1, characterized in that: It also includes a gasket (27), which is arranged between the nut (26) and the flange cover (25).

5. The high-load spring device according to claim 1, characterized in that: The sleeve assembly (2) and the positioning assembly (4) are each provided in pair.

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