Fire hose stress compensator

Abstract

The utility model relates to fire safety technical field, and disclose a fire pipeline stress compensation device, this fire pipeline stress compensation device, including the connecting head of no. The utility model relates to fire safety technical field, and disclose a fire pipeline stress compensation device, this fire pipeline stress compensation device, including the connecting head of no. The utility model relates to fire safety technical field, and disclose a fire pipeline stress compensation device, this fire pipeline stress compensation device, including the connecting head of no. The utility model relates to fire safety technical field, and disclose a fire pipeline stress compensation device, this fire pipeline stress compensation device, including the connecting head of no.

Description

Technical Field

[0001] This utility model relates to the field of fire safety technology, specifically a stress compensation device for fire pipelines. Background Technology

[0002] In fire protection piping systems, the function of fire protection piping stress compensation devices is to absorb pipe stress through flexible compensation structures, thereby ensuring the integrity of the system.

[0003] The device consists of a high-pressure compensation core, a bidirectional guiding mechanism, an anti-corrosion sealing component, and a limit protection unit. When the pipeline is stressed due to temperature, vibration, or settlement, the compensation core absorbs the displacement through the expansion or bending of the bellows, the guiding mechanism maintains the stability of the pipeline axis, the sealing component ensures no leakage, and the limit rod prevents damage from exceeding the range.

[0004] However, the above-mentioned equipment has obvious shortcomings in use. Traditional stress compensation devices rely only on the anti-corrosion layer of the corrugated pipe itself and have no additional protective structure. The humid environment and dust accumulation common in fire pipelines can easily lead to corrosion of the corrugated pipe. In view of this, we propose a stress compensation device for fire pipelines. Utility Model Content

[0005] The purpose of this invention is to provide a stress compensation device for fire-fighting pipelines to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A stress compensation device for fire-fighting pipelines includes a first connector, on which one end of a corrugated pipe is fixedly installed, and on the other end of the corrugated pipe, a second connector is fixedly installed. Contact heads are fixedly installed on both the first and second connectors. A protective component is provided on the first connector, the protective component comprising: Mounting bracket No. 1 is fixedly installed on connector No. 1, and mounting bracket No. 2 is fixedly installed on connector No. 2. A nut is fixedly installed on mounting bracket No. 2. A screw is rotatably mounted on the first connector. A protective tube is fixedly mounted on the first connector and the second connector. A limit ring is fixedly mounted on the protective tube. A hinge frame is fixedly mounted on the limit ring. A roller is rotatably mounted on the hinge frame. A protective cylinder is provided between the first connector and the second connector. A sliding groove is provided on the protective cylinder, and a limiting ring is fixedly installed on the protective cylinder.

[0007] In a further embodiment, multiple sets of the first mounting bracket, the second mounting bracket, the nut, the screw, the protective tube, the limit ring, the hinge bracket, the roller, the slide groove, and the limiting ring are provided.

[0008] In a further embodiment, multiple sets of the protective tubes and limiting rings slide inside the protective cylinder, and multiple sets of the limiting rings are arranged between multiple sets of limiting rings.

[0009] In a further embodiment, the roller is disposed inside the slide groove, the corrugated pipe is disposed inside the protective pipe and the protective cylinder, and the screw is threaded onto the nut.

[0010] In a further embodiment, an auxiliary component is provided on the first connector, the auxiliary component including a rubber ring, the rubber ring being fixedly installed on the first connector, a buffer pad being fixedly installed on the limiting ring, and a spring being fixedly installed between the first mounting bracket and the second mounting bracket.

[0011] In a further embodiment, multiple sets of the rubber ring, buffer pad, and spring are provided.

[0012] In a further embodiment, the screw is located inside the spring, and multiple sets of the buffer pads are positioned opposite the rubber ring.

[0013] Compared with the prior art, this utility model provides a stress compensation device for fire-fighting pipelines, which has the following beneficial effects: 1. This fire-fighting pipeline stress compensation device, in order to ensure the stability of the fire-fighting pipeline in harsh environments, is equipped with a protective component. When the pipeline is stressed due to temperature changes or vibration, this component, together with the expansion and contraction of the corrugated pipe, drives the No. 1 and No. 2 connectors to move relative to each other. The protective pipe slides synchronously with the connectors inside the protective cylinder, forming a double protective structure to block external dust, water vapor and collision damage to the corrugated pipe. During the movement, the limiting ring slides between the limiting rings and, together with the rollers, rolls along the slide groove to guide the movement of the connectors and prevent the corrugated pipe from tortuous stress due to displacement.

[0014] 2. In order to meet the stringent requirements for safe operation of the fire protection system, this fire protection pipeline stress compensation device is equipped with an auxiliary component. When the pipeline generates instantaneous stress that causes the connector to move rapidly, this component, together with the buffer pad on the limiting ring, fits against the rubber ring of the first connector. Through elastic deformation, it absorbs the impact energy and avoids the deformation of the components caused by rigid collision of the protective component. The spring is sleeved on the outside of the screw and expands and contracts synchronously when the connector moves relative to each other, providing a reset auxiliary force for the bellows and preventing the bellows from fatigue failure due to long-term tension or compression. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of part of the structure of this utility model; Figure 3 This is a partial structural schematic diagram from another perspective of the present invention; Figure 4 This is a cross-sectional view of part of the structure of this utility model; Figure 5 This is a schematic diagram of the internal structure of the protective cylinder of this utility model.

[0016] Explanation of icon numbers: 1. Connector No. 1; 2. Connector No. 2; 3. Bellows; 4. Contact head; 5. Protective assembly; 51. Mounting bracket No. 1; 52. Mounting bracket No. 2; 53. Nut; 54. Screw; 55. Protective tube; 56. Limiting ring; 57. Hinge bracket; 58. Roller; 59. Protective cylinder; 510. Slide groove; 511. Restricting ring; 6. Auxiliary assembly; 61. Rubber ring; 62. Buffer pad; 63. Spring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In this application, the term "above" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is primarily used to better describe this application and its embodiments, and is not intended to limit the indicated device, element, or component to having a specific orientation, or to construct and operate in a specific orientation. Furthermore, the term "above" may also be used in certain circumstances to indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances.

[0019] Please see Figures 1-5 This utility model provides a technical solution: A stress compensation device for fire-fighting pipelines includes a first connector 1, one end of a corrugated pipe 3 is fixedly installed on the first connector 1, and a second connector 2 is fixedly installed on the other end of the corrugated pipe 3. Contact heads 4 are fixedly installed on the first connector 1 and the second connector 2.

[0020] In one embodiment of this utility model, a protective component 5 is provided on the first connector 1. The protective component 5 includes a first mounting bracket 51, which is fixedly mounted on the first connector 1. A second mounting bracket 52 is fixedly mounted on the second connector 2. A nut 53 is fixedly mounted on the second mounting bracket 52. A screw 54 is rotatably mounted on the first connector 1. A protective tube 55 is fixedly mounted on the first connector 1 and the second connector 2. A limit ring 56 is fixedly mounted on the protective tube 55. A hinge frame 57 is fixedly mounted on the limit ring 56. A roller 58 is rotatably mounted on the hinge frame 57. A connection is provided between the first connector 1 and the second connector 2. A protective cylinder 59 is provided, and a sliding groove 510 is opened on the protective cylinder 59. A limiting ring 511 is fixedly installed on the protective cylinder 59. Multiple sets of mounting bracket 51, mounting bracket 52, nut 53, screw 54, protective tube 55, limiting ring 56, hinge bracket 57, roller 58, sliding groove 510 and limiting ring 511 are provided. Multiple sets of protective tubes 55 and limiting rings 56 slide inside the protective cylinder 59. Multiple sets of limiting rings 56 are set between multiple sets of limiting rings 511. Roller 58 is set inside the sliding groove 510. Corrugated pipe 3 is set inside the protective tube 55 and the protective cylinder 59. Screw 54 is threaded on nut 53.

[0021] In this embodiment, when the fire-fighting pipeline experiences axial stress due to temperature changes or vibration, the corrugated pipe 3 undergoes expansion and contraction deformation, causing the first connector 1 and the second connector 2 to move relative to each other. The protective pipes 55 on the first connector 1 and the second connector 2 slide synchronously along the inside of the protective cylinder 59, forming a double nested structure that completely encloses the corrugated pipe 3, preventing damage to the corrugated pipe 3 from external dust, moisture erosion, and external impacts. During the movement, the limiting ring 56 on the protective pipe 55 always slides between the limiting rings 511 of the protective cylinder 59, limiting the connection... The maximum moving distance is ensured to prevent the bellows 3 from being overstretched or compressed and failing. At the same time, the roller 58 on the limiting ring 56 rolls along the groove 510 of the protective cylinder 59, converting the sliding friction between the protective pipe 55 and the protective cylinder 59 into rolling friction, reducing moving resistance, ensuring smooth movement of the connector, and preventing the bellows 3 from generating torsional stress due to excessive resistance. In addition, rotating the screw 54 on the first mounting bracket 51 allows it to move along the thread of the nut 53 on the second mounting bracket 52, which can finely adjust the relative position of the two connectors, adapt to minor deviations during pipeline installation, and enhance the versatility of the device.

[0022] In one embodiment of this utility model, an auxiliary component 6 is provided on the first connector 1. The auxiliary component 6 includes a rubber ring 61, which is fixedly installed on the first connector 1. A buffer pad 62 is fixedly installed on the limiting ring 511. A spring 63 is fixedly installed between the first mounting bracket 51 and the second mounting bracket 52. Multiple sets of rubber rings 61, buffer pads 62 and springs 63 are provided. A screw 54 is located inside the spring 63. Multiple sets of buffer pads 62 are directly opposite the rubber rings 61.

[0023] In this embodiment, when the pipeline experiences instantaneous stress due to a sudden event, causing rapid relative movement between connector 1 and connector 2, the limiting ring 511 of the protective cylinder 59 moves with the protective cylinder 59. The buffer pad 62 on the protective cylinder 59 contacts the rubber ring 61 of connector 1. The two absorb the impact energy through elastic deformation, preventing rigid collision between the limiting ring 56 and the limiting ring 511 of the protective component 5, which would cause component deformation and ensure the integrity of the protective structure. At the same time, the spring 63 between mounting bracket 51 and mounting bracket 52 is sleeved outside the screw 54. When the connectors move relative to each other, the spring 63 stretches or compresses synchronously with the extension and retraction of the bellows 3. When the bellows 3 stretches, the spring 63 generates a contraction force; when the bellows 3 is compressed, the spring 63 generates an extension force, providing a reset auxiliary force for the bellows 3 and preventing fatigue failure of the bellows 3 due to long-term tension or compression.

[0024] All standard parts used in this application can be purchased from the market. The specific connection methods of each part are all conventional methods such as riveting and welding that are mature in the prior art. In addition, the standard parts are all conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art.

[0025] It should be noted that the above electrical components are all existing technology products. Those skilled in the art should select, install, and complete the circuit debugging work according to the needs of use to ensure that each electrical appliance can work normally. The components are all general standard parts or components known to those skilled in the art. Their structure and principle can be known by those skilled in the art through technical manuals or conventional experimental methods. No specific restrictions are made here. The supporting structures of the hydraulic drive structure appearing in this application document, such as hydraulic tanks and hydraulic pumps, are existing equipment and will not be described in detail here.

[0026] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A stress compensation device for fire-fighting pipelines, comprising a first connector (1), on which one end of a corrugated pipe (3) is fixedly installed, and on the other end of the corrugated pipe (3) a second connector (2) is fixedly installed, and on the first connector (1) and the second connector (2) a contact head (4) is fixedly installed, characterized in that: The first connector (1) is provided with a protective component (5), which includes: Mounting bracket 1 (51) is fixedly installed on connector 1 (1), and mounting bracket 2 (52) is fixedly installed on connector 2 (2). Nut (53) is fixedly installed on mounting bracket 2 (52). The screw (54) is rotatably mounted on the first connector (1). A protective tube (55) is fixedly mounted on the first connector (1) and the second connector (2). A limit ring (56) is fixedly mounted on the protective tube (55). A hinge frame (57) is fixedly mounted on the limit ring (56). Roller (58) is rotatably mounted on the hinge frame (57). A protective cylinder (59) is provided between the first connector (1) and the second connector (2). A sliding groove (510) is provided on the protective cylinder (59). A limiting ring (511) is fixedly installed on the protective cylinder (59).

2. The fire-fighting pipeline stress compensation device according to claim 1, characterized in that: The first mounting bracket (51), the second mounting bracket (52), the nut (53), the screw (54), the protective tube (55), the limiting ring (56), the hinge bracket (57), the roller (58), the slide groove (510), and the limiting ring (511) are provided in multiple sets.

3. The fire-fighting pipeline stress compensation device according to claim 1, characterized in that: Multiple sets of the protective tubes (55) and the limiting rings (56) slide inside the protective cylinder (59), and multiple sets of the limiting rings (56) are arranged between multiple sets of limiting rings (511).

4. The fire-fighting pipeline stress compensation device according to claim 1, characterized in that: The roller (58) is located inside the slide groove (510), the corrugated pipe (3) is located inside the protective pipe (55) and the protective cylinder (59), and the screw (54) is threaded onto the nut (53).

5. The fire-fighting pipeline stress compensation device according to claim 1, characterized in that: An auxiliary component (6) is provided on the first connector (1). The auxiliary component (6) includes a rubber ring (61). The rubber ring (61) is fixedly installed on the first connector (1). A buffer pad (62) is fixedly installed on the limiting ring (511). A spring (63) is fixedly installed between the first mounting bracket (51) and the second mounting bracket (52).

6. The fire-fighting pipeline stress compensation device according to claim 5, characterized in that: The rubber ring (61), buffer pad (62) and spring (63) are provided in multiple sets.

7. The fire-fighting pipeline stress compensation device according to claim 5, characterized in that: The screw (54) is located inside the spring (63), and multiple sets of the buffer pads (62) are positioned opposite the rubber ring (61).

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