Constant force suspension spring box release device and constant force suspension spring box release method

Abstract

The present invention relates to a constant force spring box release device and a constant force hanging spring box release method. The constant force spring box release device includes a connecting assembly and an adjusting assembly. One end of the connecting assembly is used to connect to the spring in the constant force spring box, and the other end is used to connect to the pipeline that needs to be supported; one end of the adjusting assembly is connected to a fixed structure, and the other end is connected to the end of the spring away from the connecting assembly; wherein the end of the adjusting assembly connected to the spring can move in a direction away from the connecting assembly to provide tension for the stretching of the spring, so as to release the load applied by the spring to the locking structure of the constant force spring box. Through such a constant force spring box release device, the locking structure can be removed from the constant force spring box without the need for special dedicated tools, thereby achieving support for the pipeline.

Description

Technical Field

[0001] The present invention relates to the field of nuclear power technology, and in particular to a constant force hanger spring box releasing device and a constant force hanger spring box releasing method. Background Art

[0002] Constant force spring hanger (hereinafter referred to as constant force hanger) is a commonly used pipeline support device in power plants. It can withstand large loads, up to 500KN, and can provide constant support within a large thermal displacement range, providing reliable guarantee for the safe operation of the pipeline system.

[0003] A set of spring supports and hangers includes the core constant force spring box as well as connecting parts such as pull rods, pipe connectors, and rooting steel structures. Before leaving the factory, the internal spring of the constant force spring box needs to be pre-compressed to the designed position, and then the compressed spring is fixed by a locking device. At this time, the elastic force of the spring is completely borne by the locking device, which is composed of a locking block, a circlip, and a locking groove. After the constant force hanger is installed in the designated position of the pipeline system, before the pipeline is commissioned, the locking block and circlip in the locking device need to be removed to release the function of the spring box so that the constant force hanger can play a normal pipeline support role.

[0004] Generally, when a constant force hanging spring box is installed in a piping system, when the weight (additional load) hanging below the spring box reaches the level of spring preload, that is, the designed equilibrium state is reached, the spring locking block can be easily removed. However, in actual situations, there is a certain discrepancy between the load obtained by theoretical calculation and the actual load. Due to overload or underload, the resulting deviation will cause the locking device to get stuck and the locking block cannot be removed. If tools are used to forcibly pull it out, it will cause permanent damage to the spring box. Therefore, the removal of the spring box locking device must be done in a reasonable manner and with reasonable tools, which is very important for the normal operation of the pipeline in the future.

[0005] In the prior art, if the locking device is stuck, the load of the spring box is usually reset by adjusting several load nuts at the bottom of the constant force spring phase, and the locking block can be removed when the deviation disappears. However, this method has a limited adjustment range and cannot adapt to larger load deviations; and for constant force hanging spring boxes with relatively large loads, a very large torque is required to adjust the load nuts, which cannot be done manually and requires the use of special tools. For existing constant force hanging spring boxes with relatively large loads, special hydraulic tools are usually set below the constant force spring box, and the load is hydraulically borne by a hand pump. However, the structures of constant force spring boxes on the market are different. For constant force spring boxes with different structures, specially customized hydraulic systems and support devices are required, which are costly; and if improperly operated, damage to the constant force spring box and the pull rod threads may be caused. Summary of the Invention

[0006] Based on this, it is necessary to provide a constant force spring box release device and a constant force spring box release method to address the technical problem that the function release of the constant force spring box in the existing technology requires customized special tools, which leads to high costs.

[0007] A constant force spring box releasing device, comprising:

[0008] A connecting assembly, one end of which is used to connect to the spring in the constant force spring box, and the other end is used to connect to the pipe that needs to be supported;

[0009] an adjusting assembly, one end of which is connected to the fixed structure, and the other end of which is connected to an end of the spring away from the connecting assembly;

[0010] The end of the adjustment component connected to the spring can move in a direction away from the connecting component to provide tension for the extension of the spring, thereby releasing the load applied by the spring to the locking structure of the constant force spring box.

[0011] In one embodiment, the adjustment component includes:

[0012] a support beam, one end of which is hinged to the fixed structure and the other end of which is connected to the spring;

[0013] an adjusting rod, one end of which is hinged to the fixed structure, and the other end of which is hinged to an end of the support beam close to the constant force spring box, wherein the length between the two ends of the adjusting rod is adjustable;

[0014] The adjusting rod and the supporting beam are arranged at an angle, and the end of the supporting beam connected to the spring is configured to move away from or towards the connecting assembly as the length of the adjusting rod changes.

[0015] In one embodiment, the adjustment component further comprises:

[0016] a first hinge support, fixedly connected to the fixed structure;

[0017] The first pin is rotatably connected to the first hinge support, and the support beam is fixedly connected to the first pin; or the first pin is fixedly connected to the first hinge support, and the support beam is rotatably connected to the first pin.

[0018] In one embodiment, the adjustment component further comprises:

[0019] a second hinge support, fixedly connected to the fixed structure and located above the support beam;

[0020] a second pin connected to the second hinge support, the adjustment rod being connected to the second pin so that the adjustment rod can rotate relative to the second hinge support; and / or the adjustment assembly further includes:

[0021] a third hinge support, fixedly connected to one end of the support beam close to the constant force spring box;

[0022] The third pin is connected to the third hinge support, and the end of the adjustment rod away from the fixed structure is connected to the third pin, so that the adjustment rod can rotate relative to the third hinge support.

[0023] In one embodiment, the adjustment component further comprises:

[0024] a pin seat, fixedly connected to the side of the support beam facing the constant force spring box;

[0025] A lifting ring is fixedly connected to the pin seat, and the lifting ring is used to be connected to the spring.

[0026] In one embodiment, the constant force spring box release device further comprises a hanging piece, one end of which is detachably connected to the platform above the constant force spring box, and the other end of which is detachably connected to the support beam;

[0027] The hanging member is configured to apply a pulling force to the support beam away from the connecting assembly to release the load applied by the spring on the locking structure.

[0028] In one embodiment, the connection assembly includes:

[0029] A connecting rod, one end of which is connected to the spring and the other end of which extends toward the pipe;

[0030] A pipe clamp is connected to one end of the connecting rod facing the pipe, and is used to clamp the pipe.

[0031] A constant force hanging spring box releasing method, wherein the constant force hanging spring box releasing method uses the above-mentioned constant force spring box releasing device, and the constant force spring box releasing method comprises the following steps:

[0032] connecting the pipe and the spring in the constant force spring box to the connecting assembly;

[0033] Connecting the adjustment assembly to an end of the spring in the constant force spring box away from the connecting assembly;

[0034] The adjusting assembly is adjusted so that the end of the adjusting assembly connected to the spring moves away from the connecting assembly to stretch the spring until the load applied by the spring on the locking structure is released.

[0035] In one embodiment, the adjustment assembly includes a support beam and an adjustment rod hinged to the fixed structure, and the length of the adjustment rod is adjustable; connecting the adjustment assembly to the end of the spring in the constant force spring box away from the connection assembly includes:

[0036] hingedly connecting the end of the adjusting rod away from the fixed structure to the supporting beam structure;

[0037] connecting the end of the support beam away from the fixed structure to the spring;

[0038] The adjusting of the adjusting assembly includes: applying a force to the adjusting rod to control the length of the adjusting rod to be shortened, and controlling the end of the support beam connected to the spring to move in a direction away from the connecting assembly.

[0039] In one embodiment, the adjustment assembly includes a support beam and an adjustment rod hinged to the fixed structure, the length of the adjustment rod is adjustable, and adjusting the adjustment assembly includes:

[0040] Connecting one end of the hanging piece to the end of the support beam away from the fixed structure, pulling the hanging piece in a direction away from the connecting assembly, and controlling the end of the support beam connected to the spring to move in a direction away from the connecting assembly;

[0041] When the axial force of the adjusting rod is zero, disconnecting the adjusting rod from the support beam;

[0042] Continue to pull the lifting member until the locking structure is loosened, and remove the locking structure from the spring;

[0043] The hoisting member is controlled to move the support beam away from one end of the fixed structure toward the connection assembly until the support beam is in a horizontal state, and then the adjustment rod is connected to the support beam.

[0044] Beneficial effects of the present invention:

[0045] The constant force spring box release device provided by the present invention connects the constant force spring box to the pipeline through a connecting assembly, and sets the end of the adjustment assembly connected to the spring to be able to move in a direction away from the connecting assembly, so that a pulling force can be applied to the spring in the constant force spring box while the adjustment assembly moves, thereby changing the load of the spring in the spring box through the synergistic action of the connecting assembly and the adjustment assembly. When the load in the spring reaches equilibrium, the load of the spring is no longer applied to the locking structure, so that the locking structure can move relative to the spring to achieve the purpose of releasing the load applied by the spring to the locking structure. After the locking structure is removed, the adjustment assembly can be used as part of the pipeline support structure to bear the load transferred to the pipeline by the constant force spring box. Through such a constant force spring box release device, the locking structure can be removed from the constant force spring box without the need for special dedicated tools, thereby achieving support for the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 A schematic structural diagram of a constant force spring box release device provided in one embodiment of the present invention;

[0047] Figure 2 A schematic structural diagram of a constant force spring box release device provided by one embodiment of the present invention from another perspective;

[0048] Figure 3 This is a flow chart of a method for releasing a constant force hanger spring box provided in one embodiment of the present invention.

[0049] Connecting assembly 100; connecting rod 110; pipe clamp 120;

[0050] Adjustment assembly 200; support beam 210; adjustment rod 220; first hinge support 230; first pin 240; second hinge support 250; second pin 260; third hinge support 270; third pin 280;

[0051] Constant force spring box 300;

[0052] Fixed wall 400. DETAILED DESCRIPTION

[0053] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0054] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0055] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0056] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0057] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0058] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0059] See Figure 1 and Figure 2 A constant force spring box 300 release device includes a connecting assembly 100 and an adjusting assembly 200. The connecting assembly 100 has one end connected to the spring in the constant force spring box 300 and the other end connected to a pipe to be supported. The adjusting assembly 200 has one end connected to a fixed structure and the other end connected to the end of the spring away from the connecting assembly 100. The end of the adjusting assembly 200 connected to the spring can move away from the connecting assembly 100 to provide tension for the spring, thereby releasing the load applied by the spring to the locking structure of the constant force spring box 300.

[0060] The constant force spring box 300 release device provided by the present invention connects the constant force spring box 300 to the pipeline through the connecting assembly 100, and sets the end of the adjustment assembly 200 connected to the spring to be able to move in a direction away from the connecting assembly 100, so that when the adjustment assembly 200 moves, a tension force can be applied to the spring in the constant force spring box 300, thereby changing the load of the spring in the spring box through the synergistic effect of the connecting assembly 100 and the adjustment assembly 200. When the load in the spring reaches equilibrium, the load of the spring is no longer applied to the locking structure, so that the locking structure can move relative to the spring to achieve the purpose of releasing the load applied by the spring on the locking structure. After the locking structure is removed, the adjustment assembly 200 can be used as part of the pipeline support structure to bear the load transferred to the pipeline by the constant force spring box 300. Through such a constant force spring box 300 release device, the locking structure can be removed from the constant force spring box 300 without special dedicated tools, thereby achieving support for the pipeline. This can effectively reduce the risk of damage to the constant force spring box 300 due to improper operation when special tools are required to disassemble the locking structure.

[0061] It is understood that the fixed structure can be a wall or an angle steel that is fixed relative to the pipe and can support the adjustment assembly 200, the constant force spring box 300, and other components such as the pipe. There is no limitation on the structural form of the adjustment assembly 200, as long as it can apply tension to the spring in the constant force spring box 300 in a direction away from the connecting assembly 100, so that the spring receives the load from the adjustment assembly 200 and can loosen the locking structure.

[0062] like Figure 1 and Figure 2 As shown, in one embodiment, the adjustment component 200 includes a support beam 210 and an adjustment rod 220, one end of the support beam 210 is hinged to the fixed structure, and the other end is connected to the spring; one end of the adjustment rod 220 is hinged to the fixed structure, and the other end is hinged to one end of the support beam 210 close to the constant force spring box 300, and the length between the two ends of the adjustment rod 220 can be adjusted; wherein, the adjustment rod 220 and the support beam 210 are arranged at an angle, and the end of the support beam 210 connected to the spring is configured to move in a direction away from or close to the connection component 100 as the length of the adjustment rod 220 changes.

[0063] Specifically, in this embodiment, the support beam 210 is a square steel tube beam, one end of which is pivotally connected to the fixed wall 400. The adjustment rod 220 has one end pivotally connected to the fixed wall 400 and the other end pivotally connected to the end of the support beam 210 away from the fixed cavity. This arrangement, through the combined action of the support beam 210 and the adjustment rod 220, supports the constant force spring box 300, the connection assembly 100, and the pipeline. Furthermore, by adjusting the length of the adjustment rod 220, the end of the support beam 210 connected to the spring in the constant force spring box 300 can be moved. For example, when the spring in the constant force spring box 300 needs to be relieved of pressure, the adjustment rod 220 can be shortened. The support beam 210 rotates about the hinge point under the tension of the adjustment rod 220, thereby causing the end of the support beam 210 connected to the spring to move upward, thereby stretching the spring upward. As the length of the adjusting rod 220 is adjusted, the constant force spring box 300 applies a load to the pipe. Under the joint action of the pipe, the adjusting rod 220 and the support beam 210, the load on the spring is gradually balanced, so that the spring no longer applies a load to the locking structure. At this time, the locking structure is loose and can be removed from the constant force spring box 300 without any tools.

[0064] Such a setting, on the one hand, can adapt to the deviation of the spring box load, and then make it possible to adapt to the load deviation and installation deviation of the constant force spring box 300 by adjusting the component 200 at the installation site of the pipeline, thereby making the pipeline installation more convenient; on the other hand, during the pipeline installation process, the load applied to the locking structure by the spring of the constant force spring box 300 can be released without the use of special dedicated tools, thereby removing the locking structure from the constant force spring box 300; in addition, the adjustment component 200 can also serve as part of the pipeline support structure, bearing the pipeline load transmitted by the constant force spring box 300, thereby achieving support for the pipeline. It should be noted that through the above structure, during the installation of the pipeline, there is no need to contact the constant force spring box 300 or the pipeline, and no damage will be caused to the bracket used to support the pipeline and the pipeline.

[0065] There is no restriction on the structure of the adjusting rod 220. Optionally, the adjusting rod 220 includes two connecting sections and an adjusting section. The two connecting sections are hinged to the fixed wall 400 and the support beam 210 respectively. The two ends of the adjusting section are threadedly connected to the two connecting sections respectively. When the distance between the two connecting sections needs to be adjusted, one connecting section can be moved toward the other connecting section by rotating the adjusting section.

[0066] It is understood that there is no limitation on the angle between the adjustment rod 220 and the support beam 210, and it can be 30°, 45°, 60°, etc. As a preferred solution, the angle between the adjustment rod 220 and the support beam 210 is set to 45°. It should be noted that the adjustment rod 220 should be located on the side of the support beam 210 away from the constant force spring box 300.

[0067] like Figure 1 and Figure 2 As shown, in one embodiment, the adjustment assembly 200 further includes a first hinge support 230 and a first pin 240. The first hinge support 230 is fixedly connected to the fixed structure; the first pin 240 is rotatably connected to the first hinge support 230, and the support beam 210 is fixedly connected to the first pin 240; alternatively, the first pin 240 is fixedly connected to the first hinge support 230, and the support beam 210 is rotatably connected to the first pin 240. The first hinge support 230 is fixedly connected to the fixed wall 400 by bolts. The support beam 210 is rotatably connected to the first hinge support 230 via the first pin 240. With the above structure, the reliability of the hinge connection between the support beam 210 and the fixed wall 400 can be improved.

[0068] In one embodiment, the adjustment assembly 200 further includes a second hinge support 250 and a second pin 260. The second hinge support 250 is fixedly connected to the fixed structure and is located above the support beam 210. The second pin 260 is connected to the second hinge support 250, and the adjustment rod 220 is connected to the second pin 260 so that the adjustment rod 220 can rotate relative to the second hinge support 250. And / or, the adjustment assembly 200 further includes a third hinge support 270 and a third pin 280. The third hinge support 270 is fixedly connected to an end of the support beam 210 near the constant force spring box 300. The third pin 280 is connected to the third hinge support 270, and the end of the adjustment rod 220 away from the fixed structure is connected to the third pin 280 so that the adjustment rod 220 can rotate relative to the third hinge support 270. Specifically, the second hinge support 250 is secured to the fixed wall 400 via bolts, and the adjustment rod 220 is pivotally connected to the second hinge support 250 via a second pin 260. The third hinge support 270 is welded to the support beam 210, and the adjustment rod 220 is rotatably connected to the third hinge support 270 via a third pin 280. This structure not only facilitates the installation of the adjustment rod 220, but also helps improve the reliability of the rotation of the adjustment rod 220 relative to the support beam 210.

[0069] It can be understood that the first hinge support 230, the second hinge support 250 and the third hinge support 270 are all constructed with U-shaped grooves, and the connected parts, such as the ends of the support beam 210 or the adjustment rod 220, can be accommodated in the U-shaped grooves and then connected to the first hinge support 230 through the pin shaft.

[0070] like Figure 1 and Figure 2 As shown, in one embodiment, the adjustment assembly 200 further includes a pin holder and a lifting ring. The pin holder is fixedly connected to the side of the support beam 210 facing the constant force spring box 300; the lifting ring is fixedly connected to the pin holder, and the lifting ring is used to connect to the spring. The pin holder is welded to the support beam 210 or fixed by bolts. Optionally, the lifting ring is a bolt lifting ring, which is threadedly fixed to the pin holder, and the annular portion of the bolt lifting ring is connected to the spring. Such a configuration not only simplifies the structure but also facilitates the connection between the support beam 210 and the spring.

[0071] like Figure 1 and Figure 2As shown, in one embodiment, the release device of the constant force spring box 300 also includes a hanging piece, one end of which is detachably connected to the platform above the constant force spring box 300, and the other end is detachably connected to the support beam 210; wherein the hanging piece is configured to be able to apply a pulling force away from the connecting assembly 100 to the support beam 210 to release the load applied by the spring on the locking structure. Specifically, the hanging piece is connected to the angle steel on the platform above the constant force spring box 300. Optionally, the hanging piece can be a hand chain hoist. With such an arrangement, when the adjustment range of the constant force spring box 300 and the pipeline is large during installation, the adjustment efficiency by adjusting the pull rod 220 is low. At this time, the support beam 210 can be pulled to move by the hand chain hoist. Thereby, the load on the locking structure of the spring of the constant force spring box 300 is released, thereby improving efficiency.

[0072] like Figure 1 and Figure 2 As shown, in one embodiment, the connection assembly 100 includes a connecting rod 110 and a pipe clamp 120. One end of the connecting rod 110 is connected to a spring, and the other end extends toward the pipe. The pipe clamp 120 is connected to the end of the connecting rod 110 facing the pipe, and is used to clamp the pipe. The pipe clamp 120 is used to clamp the pipe, and the connecting rod 110 is used to connect the pipe clamp 120 to the constant force spring box 300, thereby connecting the pipe and the constant force spring box 300, thereby enabling the constant force spring box 300 to support the pipe.

[0073] like Figure 3As shown, the present invention also provides a constant force hanging spring box release method according to an embodiment. The constant force hanging spring box release method uses the above-mentioned constant force spring box 300 release device, and the constant force spring box 300 release method includes the following steps: step S10, connecting the pipe and the spring in the constant force spring box 300 to the connecting assembly 100; step S20, connecting the adjustment assembly 200 to the end of the spring in the constant force spring box 300 away from the connecting assembly 100; step S30, adjusting the adjustment assembly 200 so that the end of the adjustment assembly 200 connected to the spring moves away from the connecting assembly 100 to stretch the spring until the load applied by the spring on the locking structure is released. By adjusting the adjustment assembly 200, the end of the adjustment assembly 200 connected to the spring box moves away from the connecting assembly 100, thereby applying a load to the spring through the adjustment assembly 200, so as to release the load applied by the spring on the locking structure, thereby facilitating the removal of the locking structure from the constant force spring box 300. By using the above method, when the load applied to the locking structure by the spring of the constant force spring box 300 is released, the locking structure can be removed from the constant force spring box 300 without special tools. This not only improves the installation efficiency of the pipeline, but also helps to reduce the risk of damage to the constant force spring box 300 caused by improper operation when removing the locking structure due to the need for special tools. In one embodiment, the adjustment assembly 200 includes a support beam 210 and an adjustment rod 220 hinged to the fixed structure, and the length of the adjustment rod can be adjusted; connecting the adjustment assembly 200 to the end of the spring in the constant force spring box 300 away from the connection assembly 100 includes: hingedly connecting the end of the adjustment rod 220 away from the fixed structure to the support beam 210 structure; connecting the end of the support beam 210 away from the fixed structure to the spring; adjusting the adjustment assembly 200 includes: applying a force to the adjustment rod 220 to control the length of the adjustment rod 220 to decrease, and controlling the end of the support beam 210 connected to the spring to move in a direction away from the connection assembly 100. For small-scale load adjustment, the length of the adjusting rod 220 can be adjusted using a dedicated wrench by adjusting the adjustment hole provided by the adjusting rod 220. As the length of the adjusting rod 220 changes, the support beam 210 rotates around the first pin 240, and the spring on the constant-force spring box 300 is stretched, thereby changing the load on the spring. When the load on the locking structure by the spring is zero, the load of the constant-force spring box 300 is mainly applied to the pipe, thereby achieving support for the pipe. At the same time, the locking structure can be removed from the spring.

[0074] In one embodiment, the adjustment component 200 includes a support beam 210 and an adjustment rod 220 hinged to the fixed structure, and the length of the adjustment rod 220 can be adjusted. Adjusting the adjustment component 200 includes: connecting one end of the hanging piece to the end of the support beam 210 away from the fixed structure, pulling the hanging piece in a direction away from the connecting component 100, and controlling the end of the support beam 210 connected to the spring to move in a direction away from the connecting component 100; when the axial force on the adjustment rod 220 is zero, disconnecting the adjustment rod 220 from the support beam 210; continuing to pull the hanging piece until the locking structure loosens, and removing the locking structure from the spring; controlling the hanging piece so that the end of the support beam 210 away from the fixed structure moves toward the connecting component 100 until the support beam 210 is in a horizontal state, and then connecting the adjustment rod 220 to the support beam 210.

[0075] When the load range that needs to be adjusted is large, the efficiency of adjustment through the adjusting rod 220 is low. At this time, the adjustment function of the support beam 210 is realized by a lifting part, such as a hand hoist, instead of the adjusting rod 220. Specifically, the hand hoist is used to slowly pull up the end of the support beam 210 hinged to the top of the constant force spring box 300, and the adjusting rod 220 is disconnected from the support beam 210 when the adjusting rod 220 is loose. Continue to stretch the support beam 210 upward through the hand hoist while observing the locking block in the locking structure. When the locking block is loose, remove the locking structure. After completing the unlocking operation of the constant force spring box 300, slowly release the hand hoist so that the support beam 210 returns to the horizontal, and then connect the adjusting rod 220 to the support beam 210. Finally, release the hand hoist to complete the release of the constant force spring box 300. 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.

[0076] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A constant force spring box release device, characterized in that: The constant force spring box releasing device comprises: A connecting assembly, one end of which is used to connect to the spring in the constant force spring box, and the other end is used to connect to the pipe that needs to be supported; an adjusting assembly, one end of which is connected to the fixed structure, and the other end of which is connected to an end of the spring away from the connecting assembly; wherein one end of the adjustment assembly connected to the spring can move in a direction away from the connecting assembly to provide tension for the extension of the spring, thereby releasing the load applied by the spring to the locking structure of the constant force spring box; The adjustment component includes: a support beam, one end of which is hinged to the fixed structure and the other end of which is connected to the spring; an adjusting rod, one end of which is hinged to the fixed structure, and the other end of which is hinged to an end of the support beam close to the constant force spring box, wherein the length between the two ends of the adjusting rod is adjustable; The adjusting rod and the support beam are arranged at an angle, and the end of the support beam connected to the spring is configured to move away from or towards the connecting assembly as the length of the adjusting rod changes; The constant force spring box release device further includes a hanging piece, one end of which is detachably connected to the platform above the constant force spring box, and the other end of which is detachably connected to the support beam; The hanging member is configured to apply a pulling force to the support beam away from the connecting assembly to release the load applied by the spring on the locking structure.

2. The constant force spring box release device according to claim 1, characterized in that: The adjustment component also includes: a first hinge support, fixedly connected to the fixed structure; The first pin is rotatably connected to the first hinge support, and the support beam is fixedly connected to the first pin; or the first pin is fixedly connected to the first hinge support, and the support beam is rotatably connected to the first pin.

3. The constant force spring box release device according to claim 1, characterized in that: The adjustment component also includes: a second hinge support, fixedly connected to the fixed structure and located above the support beam; a second pin connected to the second hinge support, the adjustment rod being connected to the second pin so that the adjustment rod can rotate relative to the second hinge support; and / or the adjustment assembly further includes: a third hinge support, fixedly connected to one end of the support beam close to the constant force spring box; The third pin is connected to the third hinge support, and the end of the adjustment rod away from the fixed structure is connected to the third pin, so that the adjustment rod can rotate relative to the third hinge support.

4. The constant force spring box release device according to claim 1, characterized in that: The adjustment component also includes: a pin seat, fixedly connected to the side of the support beam facing the constant force spring box; A lifting ring is fixedly connected to the pin seat, and the lifting ring is used to be connected to the spring.

5. The constant force spring box release device according to claim 1, characterized in that: The connection component includes: A connecting rod, one end of which is connected to the spring and the other end of which extends toward the pipe; A pipe clamp is connected to one end of the connecting rod facing the pipe, and is used to clamp the pipe.

6. A method for releasing a constant force hanging spring box, characterized in that: The constant force spring box releasing method uses the constant force spring box releasing device according to any one of claims 1 to 5, and the constant force spring box releasing method comprises the following steps: connecting the pipe and the spring in the constant force spring box to the connecting assembly; Connecting the adjustment assembly to an end of the spring in the constant force spring box away from the connecting assembly; The adjusting assembly is adjusted so that the end of the adjusting assembly connected to the spring moves away from the connecting assembly to stretch the spring until the load applied by the spring on the locking structure is released.

7. The method for releasing a constant force suspension spring box according to claim 6, characterized in that: The adjustment assembly includes a support beam hinged to the fixed structure and an adjustment rod, the length of the adjustment rod being adjustable; and connecting the adjustment assembly to an end of the spring in the constant force spring box away from the connection assembly includes: hingedly connecting the end of the adjusting rod away from the fixed structure to the supporting beam structure; connecting the end of the support beam away from the fixed structure to the spring; The adjusting of the adjusting assembly includes: applying a force to the adjusting rod to control the length of the adjusting rod to be shortened, and controlling the end of the support beam connected to the spring to move in a direction away from the connecting assembly.

8. The method for releasing a constant force suspension spring box according to claim 6, characterized in that: The adjustment assembly includes a support beam hinged to the fixed structure and an adjustment rod, the length of the adjustment rod is adjustable, and the adjustment of the adjustment assembly includes: Connecting one end of the hanging piece to the end of the support beam away from the fixed structure, pulling the hanging piece in a direction away from the connecting assembly, and controlling the end of the support beam connected to the spring to move in a direction away from the connecting assembly; When the axial force of the adjusting rod is zero, disconnecting the adjusting rod from the support beam; Continue to pull the lifting member until the locking structure is loosened, and remove the locking structure from the spring; The hoisting member is controlled to move the support beam away from one end of the fixed structure toward the connection assembly until the support beam is in a horizontal state, and then the adjustment rod is connected to the support beam.

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