Pipeline connecting structure and fire extinguishing system
By designing a pipeline connection structure including elastic parts, the water leakage problem caused by temperature changes in the sealing ring is solved, and efficient sealing and leakage prevention effect of fire-fighting pipe connection gaps is achieved.
Patent Information
- Application Number
- CN202420488346.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-13
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-03-13
AI Technical Summary
The sealing ring of the existing fire-fighting pipeline connection structure is easily affected by temperature changes, resulting in poor sealing and gaps, resulting in water leakage in the fire-fighting pipeline.
A pipe connection structure is designed, including a sealing portion, which forms first and second abutment ends at the connecting gap, abuts against the outer peripheral wall of the fire duct, and provides a pressing force through the first and second elastic portions. , ensure that the sealing part is closely fitted with the pipe wall.
Effectively eliminate the adverse effects of temperature changes on sealing performance, ensure that the fire pipe connection gap is always sealed, improve the leakage prevention effect, and prevent fire water leakage.
Smart Images
Figure CN222513800U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fire-fighting pipeline connection, in particular to a pipeline connection structure and a fire-fighting system. Background Art
[0002] Fire-fighting pipes refer to pipe materials used in fire-fighting to connect fire-fighting equipment and fire-fighting instruments and to transport water, gas or other media for fire-fighting. Considering the large temperature difference between summer and winter, in order to ensure that the fire-fighting pipes can expand and contract when the temperature changes, a certain gap is left at the connection between two adjacent fire-fighting pipes. When connecting fire-fighting pipes, a connecting structure is often used to quickly connect and seal the fire-fighting pipes.
[0003] The existing connection structure usually includes a sealing ring, which is arranged at the connection gap between two adjacent fire-fighting pipes, and the sealing ring needs to be tightly attached to the outer peripheral wall of the fire-fighting pipe to form a seal for the fire-fighting water and prevent the fire-fighting water in the fire-fighting pipe from leaking from the connection gap. However, the elasticity of the sealing ring will be affected by temperature changes. When the temperature drops, the elasticity of the sealing ring will decrease, causing the sealing ring to no longer be tightly attached to the outer peripheral wall of the fire-fighting pipe, resulting in a loose seal between the sealing ring and the fire-fighting pipe and a gap, thereby causing the fire-fighting pipe to leak. Utility Model Content
[0004] The main purpose of the utility model is to provide a pipe connection structure and a fire protection system, aiming to solve the technical problem that the sealing ring of the existing connection structure is easily affected by temperature, thereby causing water leakage in the fire protection pipe.
[0005] To achieve the above-mentioned purpose, the utility model proposes a pipeline connection structure, which is used to connect a first pipeline and a second pipeline that are adjacently arranged, and seal a connection gap between the first pipeline and the second pipeline, the connection structure comprises a sealing portion, the sealing portion comprises a first opening portion, the first opening portion is arranged around the connection gap, the sealing portion forms a first abutting end and a second abutting end at the first opening portion, the first abutting end surrounds and abuts against the outer peripheral wall of the first pipeline, the second abutting end surrounds and abuts against the outer peripheral wall of the second pipeline, so that the sealing portion forms a seal at the connection gap;
[0006] The first abutting end is provided with a first groove, the second abutting end is provided with a second groove, the first groove is provided with a first elastic part, the second groove is provided with a second elastic part, the first elastic part provides an elastic force toward the first pipe, and the second elastic part provides an elastic force toward the second pipe.
[0007] In some embodiments, the sealing portion further includes a first cavity, the first cavity is communicated with the first opening, and the first cavity extends from the first abutting end and the second abutting end in a direction away from the connecting gap.
[0008] In some embodiments, along the axial direction of the first pipe and in a direction away from the first cavity, the sealing portion also includes a second cavity, the second cavity includes a second opening, and the sealing portion forms a third abutting end at an end of the second opening away from the first cavity, and the third abutting end abuts against the outer peripheral wall of the first pipe.
[0009] In some embodiments, along the axial direction of the second pipe and in a direction away from the first cavity, the sealing portion also includes a third cavity, the third cavity includes a third opening, and the sealing portion forms a fourth abutting end at an end of the third opening away from the first cavity, and the fourth abutting end abuts against the outer peripheral wall of the second pipe.
[0010] In some embodiments, the third abutting end is provided with a third groove, the third groove is provided with a third elastic portion, the third elastic portion provides an elastic force toward the first pipe, and the fourth abutting end is provided with a fourth groove, the fourth groove is provided with a fourth elastic portion, and the fourth elastic portion provides an elastic force toward the second pipe.
[0011] In some embodiments, the first abutting end and the first elastic portion are an integrally formed structure, and the second abutting end and the second elastic portion are an integrally formed structure.
[0012] In some embodiments, a shell is provided on the side of the sealing portion facing away from the first pipe, and the shell includes a first shell and a second shell, the first shell and the second shell are arranged around the sealing portion, and the first shell and the second shell are connected by bolts for clamping the sealing portion at the connecting gap.
[0013] In some embodiments, the sealing portion is a structure made of rubber, and the first elastic portion, the second elastic portion, the third elastic portion, and the fourth elastic portion are all structures made of metal springs.
[0014] In some embodiments, the first pipe and the second pipe are fire protection pipes.
[0015] Correspondingly, the utility model also proposes a fire protection system, comprising any of the above-mentioned pipe connection structures.
[0016] Compared with the prior art, the beneficial effects of the utility model are:
[0017] In the technical solution of the present utility model, in order to eliminate the influence of temperature changes on the elasticity of the sealing ring (for example, the sealing ring usually adopts a rubber structure, when the temperature rises, the elasticity of the sealing ring will become better, and when the temperature drops, the elasticity of the sealing ring will become worse), ensure that the connection gap between two adjacent fire-fighting pipes is always in a sealed state, and improve the anti-leakage effect of the fire-fighting pipe, a pipe connection structure with good sealing performance is provided. The connection structure seals at the connection gap between two adjacent first pipes and second pipes, and includes a sealing portion arranged around the connection gap. Corresponding to the connection gap, the sealing portion has a circle of first opening portions, and the sealing portion forms a first abutment end and a second abutment end at the opening of the first opening portion. The first abutment end surrounds and abuts against the outer peripheral wall of the first pipe, and the second abutment end surrounds and abuts against the outer peripheral wall of the second pipe, so that the first opening portion covers and seals the connection gap between the first pipe and the second pipe, thereby effectively preventing fire water from leaking from the connection gap. Furthermore, the first abutting end is provided with a first elastic portion, and the second abutting end is provided with a second elastic portion. The first elastic portion can be used to increase the clamping force between the first abutting end and the outer peripheral wall of the first pipe so that the first abutting end is tightly attached to the outer peripheral wall of the first pipe. The second elastic portion can be used to increase the clamping force between the second abutting end and the outer peripheral wall of the second pipe so that the second abutting end is tightly attached to the outer peripheral wall of the second pipe. In this way, even when the temperature drops and the elasticity of the sealing portion deteriorates, the pressure between the sealing portion and the outer peripheral wall of the fire protection pipe can be increased by the first elastic portion and the second elastic portion, thereby preventing a gap from being generated between the sealing portion and the outer peripheral wall of the fire protection pipe and ensuring a tight fit between the sealing portion and the outer peripheral wall of the fire protection pipe.
[0018] The connection structure provided by the utility model can eliminate the adverse effects of temperature changes on the sealing performance of the sealing part, ensure that the abutting end of the sealing part can always fit tightly with the outer peripheral wall of the fire-fighting pipe, improve the sealing effect of the sealing part on the fire-fighting water in the fire-fighting pipe, and effectively prevent the fire-fighting water from leaking at the connecting gap of the fire-fighting pipe.
[0019] The fire protection system using the above-mentioned pipe connection structure can ensure that the fire protection water will not leak when the fire protection water is transported, thereby ensuring the safe operation of other equipment under the fire protection pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0021] Figure 1A cross-sectional view of the pipe connection structure provided by one embodiment of the utility model before filling the fire-fighting pipe with fire-fighting water;
[0022] Figure 2 A cross-sectional view of a pipe connection structure provided by an embodiment of the utility model after the fire-fighting pipe is filled with fire-fighting water;
[0023] Figure 3 A configuration form of the elastic part in the pipeline connection structure provided by one embodiment of the utility model;
[0024] Figure 4 Another arrangement form of the elastic part in the pipeline connection structure provided in one embodiment of the utility model.
[0025] Description of Figure Numbers:
[0026] 100- sealing part;
[0027] 110 - first cavity; 120 - second cavity; 130 - third cavity;
[0028] 111 - first opening; 112 - first abutting end; 113 - second abutting end; 114 - first elastic part; 115 - second elastic part;
[0029] 121 - second opening; 122 - third abutting end; 123 - third elastic portion;
[0030] 131 - third opening portion; 132 - fourth abutting end; 133 - fourth elastic portion;
[0031] 200-housing;
[0032] 210-first housing; 220-second housing;
[0033] 300-first pipeline;
[0034] 400-Second pipeline.
[0035] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0037] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0038] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or", "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0039] Fire-fighting pipes refer to pipe materials used in fire-fighting to connect fire-fighting equipment and fire-fighting instruments and to transport water, gas or other media for fire-fighting. Considering the large temperature difference between summer and winter, in order to ensure that the fire-fighting pipes can expand and contract when the temperature changes, a certain gap is left at the connection between two adjacent fire-fighting pipes. When connecting fire-fighting pipes, a connecting structure is often used to quickly connect and seal the fire-fighting pipes.
[0040] The existing connection structure usually includes a sealing ring, which is arranged at the connection gap between two adjacent fire-fighting pipes, and the sealing ring needs to be tightly attached to the outer peripheral wall of the fire-fighting pipe to form a seal for the fire-fighting water and prevent the fire-fighting water in the fire-fighting pipe from leaking from the connection gap. However, the elasticity of the sealing ring will be affected by temperature changes. When the temperature drops, the elasticity of the sealing ring will decrease, causing the sealing ring to no longer be tightly attached to the outer peripheral wall of the fire-fighting pipe, resulting in a loose seal between the sealing ring and the fire-fighting pipe and a gap, thereby causing the fire-fighting pipe to leak.
[0041] In order to solve the technical problem that the sealing ring of the existing connection structure is easily affected by temperature, thus causing water leakage in the fire protection pipe, refer to Figure 1 to Figure 2The utility model provides a pipe connection structure in one embodiment, which is used to connect a first pipe 300 and a second pipe 400 which are arranged adjacent to each other, and seal the connection gap between the first pipe 300 and the second pipe 400, and comprises a sealing part 100, wherein the sealing part 100 comprises a first opening part 111, and the first opening part 111 is arranged around the connection gap, and the sealing part 100 forms a first abutting end 112 and a second abutting end 113 at the first opening part 111, wherein the first abutting end 112 surrounds and abuts against the outer peripheral wall of the first pipe 300, and the second abutting end 113 surrounds and abuts against the outer peripheral wall of the second pipe 400, so that the sealing part 100 forms a seal at the connection gap. The first abutting end 112 is provided with a first groove, and the second abutting end 113 is provided with a second groove, and the first groove is provided with a first elastic part 114, and the second groove is provided with a second elastic part 115, and the first elastic part 114 provides elastic force toward the first pipe 300, and the second elastic part 115 provides elastic force toward the second pipe 400.
[0042] Specifically, in this embodiment, in order to eliminate the influence of temperature change on the elasticity of the sealing ring (for example, the sealing ring usually adopts a rubber structure, when the temperature rises, the elasticity of the sealing ring will become better, and when the temperature drops, the elasticity of the sealing ring will become worse), ensure that the connection gap between two adjacent fire-fighting pipes is always in a sealed state, and improve the anti-leakage effect of the fire-fighting pipe, a pipe connection structure with good sealing performance is provided. This connection structure is sealed at the connection gap between two adjacent first pipes 300 and second pipes 400, including a sealing ring around the connection gap. The sealing portion 100 is arranged in the gap, corresponding to the connecting gap, and the sealing portion 100 has a circle of first opening portion 111. The sealing portion 100 forms a first abutting end 112 and a second abutting end 113 at the opening of the first opening portion 111. The first abutting end 112 surrounds and abuts against the outer peripheral wall of the first pipe 300, and the second abutting end 113 surrounds and abuts against the outer peripheral wall of the second pipe 400, so that the first opening portion 111 covers and seals the connecting gap between the first pipe 300 and the second pipe 400, thereby effectively preventing the fire water from leaking from the connecting gap. Furthermore, the first abutting end 112 is provided with a first elastic portion 114, and the second abutting end 113 is provided with a second elastic portion 115. The first elastic portion 114 can be used to increase the clamping force between the first abutting end 112 and the outer peripheral wall of the first pipe 300, so that the first abutting end 112 is tightly attached to the outer peripheral wall of the first pipe 300. The second elastic portion 115 can be used to increase the clamping force between the second abutting end 113 and the outer peripheral wall of the second pipe 400, so that the second abutting end 113 is tightly attached to the outer peripheral wall of the second pipe 400. In this way, even when the temperature drops and the elasticity of the sealing portion 100 deteriorates, the pressure between the sealing portion 100 and the outer peripheral wall of the fire protection pipe can be increased by the first elastic portion 114 and the second elastic portion 115, thereby preventing a gap from being generated between the sealing portion 100 and the outer peripheral wall of the fire protection pipe, thereby ensuring that the sealing portion 100 and the outer peripheral wall of the fire protection pipe are tightly attached.
[0043] The connection structure provided in this embodiment can eliminate the adverse effects of temperature changes on the sealing performance of the sealing part 100, ensure that the abutting end of the sealing part 100 can always fit tightly against the outer wall of the fire pipe, improve the sealing effect of the sealing part 100 on the fire water in the fire pipe, and effectively prevent the fire water from leaking at the connecting gap of the fire pipe.
[0044] Further, the first elastic portion 114 can be snapped into the first groove, and the second elastic portion 115 can be snapped into the second groove. In some embodiments, referring to Figure 3 to Figure 4, for example, the first elastic part 114 can be arranged around the outer peripheral wall of the first pipe 300 for one circle, and similarly, the second elastic part 115 can also be arranged around the outer peripheral wall of the second pipe 400 for one circle, and the circumferential tightening force of the first elastic part 114 and the second elastic part 115 can be used to tightly clamp the abutting end of the sealing part 100 on the outer peripheral wall of the fire-fighting pipe, so that the sealing part 100 and the outer peripheral wall of the fire-fighting pipe are in close contact. In other embodiments, for example, the first elastic part 114 can be arranged around a part of the outer peripheral wall of the first pipe 300, and similarly, the second elastic part 115 can also be arranged around a part of the outer peripheral wall of the second pipe 400, and the local circumferential tightening force of the first elastic part 114 and the second elastic part 115 can be used to tightly clamp the abutting end of the sealing part 100 on the outer peripheral wall of the fire-fighting pipe, so that the sealing part 100 and the outer peripheral wall of the fire-fighting pipe are in close contact. In addition to achieving the effect of tightening the sealing part 100, such a structure can also save materials and reduce production costs.
[0045] In some embodiments, reference Figure 1 to Figure 2 The sealing portion 100 further includes a first cavity 110 , the first cavity 110 is connected to the first opening 111 , and the first cavity 110 extends from the first abutting end 112 and the second abutting end 113 in a direction away from the connection gap.
[0046] Specifically, in the present embodiment, when the fire-fighting water in the fire-fighting pipe flows through the connecting gap, it will enter the first cavity 110 through the first opening portion 111 and be stored in the first cavity 110. The fire-fighting water in the first cavity 110 will generate a certain pressure on the surroundings. At the abutment between the sealing portion 100 and the outer peripheral wall of the fire-fighting pipe, the fire-fighting water in the first cavity 110 will provide an extrusion force toward the fire-fighting pipe, so that the first abutting end 112 of the sealing portion 100 is tightly pressed against the outer peripheral wall of the first pipe 300, and the second abutting end 113 is tightly pressed against the outer peripheral wall of the second pipe 400, which is conducive to further eliminating the gap between the abutting end of the sealing portion 100 and the outer peripheral wall of the fire-fighting pipe, thereby further improving the sealing effect of the sealing portion 100.
[0047] It should be noted that, similar to the first opening 111, the first cavity 110 is also circumferentially arranged around the connecting gap between the fire-fighting pipes. No single limitation is imposed on the structural form of the first cavity 110, as long as the fire-fighting water in the first cavity 110 can provide pressure on the abutting end of the sealing portion 100 toward the outer wall of the fire-fighting pipe.
[0048] In some embodiments, reference Figure 1 to Figure 2, along the axial direction of the first pipe 300 and in a direction away from the first cavity 110, the sealing portion 100 also includes a second cavity 120, the second cavity 120 includes a second opening portion 121, and the sealing portion 100 forms a third abutting end 122 at one end of the second opening portion 121 away from the first cavity 110, and the third abutting end 122 abuts against the outer peripheral wall of the first pipe 300.
[0049] Specifically, in the present embodiment, the sealing portion 100 is further provided with a second cavity 120 at intervals on the periphery of the first cavity 110 to form a secondary seal of the sealing portion 100 for the fire water. If the first elastic portion 114 fails and causes a gap to be generated between the first abutting end 112 and the outer peripheral wall of the first pipe 300, and they are no longer tightly fitted, the fire water may flow out from the gap between the first abutting end 112 and the outer peripheral wall of the first pipe 300. Since a circle of second cavities 120 is further provided on the periphery of the first cavity 110, the fire water will flow into the second cavity 120. Since the third abutting end 122 is tightly abutted against the outer peripheral wall of the first pipe 300, the third abutting end 122 can be used to prevent the fire water from continuing to leak outward, so that the fire water flowing out of the first cavity 110 will be stored in the second cavity 120, and will not directly flow to the outside of the sealing portion 100 to cause water leakage.
[0050] By setting a second cavity 120 inside the sealing part 100, the fire water can be effectively sealed and protected for the second time. When the fire water leaks from the first cavity 110, it can be blocked and stored in the second cavity 120 without directly causing the fire water to leak to the outside of the sealing part 100.
[0051] It should be noted that, in order to ensure that the sealing portion 100 can provide more stringent sealing protection for the fire water, the sealing portion 100 may be provided with multiple circles of second cavities 120 along the axial direction of the first pipe 300 and in a direction away from the first cavity 110 .
[0052] In some embodiments, reference Figure 1 to Figure 2 The third abutting end 122 is provided with a third groove, and the third groove is provided with a third elastic portion 123. Exemplarily, for example, the third elastic portion 123 can be snapped into the third groove, and the third elastic portion 123 provides an elastic force toward the first pipe 300 so that the third abutting end 122 is tightly attached to the outer peripheral wall of the first pipe 300.
[0053] Specifically, in the present embodiment, in order to further improve the sealing effect of the sealing portion 100 and avoid the reduction of the elasticity of the sealing portion 100 due to the influence of temperature, resulting in a gap between the third abutting end 122 and the outer peripheral wall of the first pipe 300, a third elastic portion 123 is provided at the third abutting end 122. The third elastic portion 123 can be used to increase the pressing force between the third abutting end 122 and the outer peripheral wall of the first pipe 300, so that the third abutting end 122 can be tightly attached to the outer peripheral wall of the first pipe 300. In this way, even when the temperature decreases and the elasticity of the sealing portion 100 deteriorates, the pressure between the sealing portion 100 at the second cavity 120 and the outer peripheral wall of the first pipe 300 can be increased by the third elastic portion 123, thereby preventing the sealing portion 100 from generating a gap between the second cavity 120 and the outer peripheral wall of the first pipe 300, ensuring that the sealing portion 100 at the second cavity 120 and the outer peripheral wall of the first pipe 300 can be tightly attached, thereby ensuring the secondary sealing effect of the sealing portion 100.
[0054] In some embodiments, reference Figure 1 to Figure 2 , along the axial direction of the second pipe 400 and in a direction away from the first cavity 110, the sealing portion 100 also includes a third cavity 130, the third cavity 130 includes a third opening portion 131, and the sealing portion 100 forms a fourth abutting end 132 at one end of the third opening portion 131 away from the first cavity 110, and the fourth abutting end 132 abuts against the outer peripheral wall of the second pipe 400.
[0055] Specifically, in this embodiment, referring to the above embodiment, in addition to the second cavity 120 being provided on one side of the outer circumference of the first cavity 110, the sealing portion 100 is also provided with a third cavity 130 at intervals on the other side opposite to the outer circumference of the first cavity 110, so as to form a secondary seal for the fire water on both sides of the first cavity 110. If the second elastic portion 115 fails and a gap is generated between the second abutting end 113 and the outer circumferential wall of the second pipe 400, and they are no longer tightly fitted, the fire water may flow out from the second abutting end 113 to the outer circumferential wall of the second pipe 400. 3 and the outer peripheral wall of the second pipe 400. Since the outer periphery of the first cavity 110 is also provided with a circle of third cavity 130, the fire-fighting water will flow into the third cavity 130. Since the fourth abutting end 132 is tightly abutted against the outer peripheral wall of the second pipe 400, the fourth abutting end 132 can be used to prevent the fire-fighting water from continuing to leak out, so that the fire-fighting water flowing out of the first cavity 110 will be stored in the third cavity 130, and will not directly flow to the outside of the sealing portion 100 to cause water leakage.
[0056] By setting the third cavity 130 inside the sealing part 100, the fire water can be effectively sealed and protected for the second time. When the fire water leaks from the first cavity 110, it can be blocked and stored in the third cavity 130 without directly causing the fire water to leak to the outside of the sealing part 100.
[0057] It should be noted that, in order to ensure that the sealing portion 100 can provide more stringent sealing protection for the fire water, the sealing portion 100 may be provided with multiple circles of third cavities 130 along the axial direction of the second pipe 400 and in a direction away from the first cavity 110 .
[0058] In some embodiments, reference Figure 1 to Figure 2 The fourth abutting end 132 is provided with a fourth groove, and the fourth groove is provided with a fourth elastic portion 133. Exemplarily, for example, the fourth elastic portion 133 can be snapped into the fourth groove, and the fourth elastic portion 133 provides an elastic force toward the second pipe 400 so that the fourth abutting end 132 is tightly attached to the outer peripheral wall of the second pipe 400.
[0059] Specifically, in the present embodiment, referring to the above embodiment, in order to further improve the sealing effect of the sealing portion 100 and avoid the elasticity of the sealing portion 100 being reduced due to the influence of temperature, resulting in a gap between the fourth abutting end 132 and the outer peripheral wall of the second pipe 400, the fourth abutting end 132 is provided with a fourth elastic portion 133, and the fourth elastic portion 133 can be used to increase the pressing force between the fourth abutting end 132 and the outer peripheral wall of the second pipe 400, so that the fourth abutting end 132 can be closely attached to the outer peripheral wall of the second pipe 400, so that even when the temperature decreases and the elasticity of the sealing portion 100 deteriorates, the pressure between the sealing portion 100 at the third cavity 130 and the outer peripheral wall of the second pipe 400 can be increased by the fourth elastic portion 133, so as to prevent the sealing portion 100 from generating a gap between the third cavity 130 and the outer peripheral wall of the second pipe 400, and ensure that the sealing portion 100 can be closely attached to the outer peripheral wall of the second pipe 400 at the third cavity 130, thereby ensuring the secondary sealing effect of the sealing portion 100.
[0060] In some embodiments, a first groove is disposed inside the first abutting end 112, a first elastic portion 114 is disposed in the first groove, and the first abutting end 112 and the first elastic portion 114 are an integrally formed structure, a second groove is disposed inside the second abutting end 113, a second elastic portion 115 is disposed in the second groove, and the second abutting end 113 and the second elastic portion 115 are an integrally formed structure.
[0061] Specifically, in the present embodiment, in addition to forming a groove on the surface of the abutting end and snapping the elastic part into the groove, another form of arranging the elastic part at the abutting end is provided, that is, when processing the sealing part 100, a groove is formed inside the abutting end, and the elastic part is arranged inside the abutting end, so that the elastic part and the sealing part 100 are an integrated structure. Compared with the form of snapping the elastic part into the groove, the integrated structure provided in the present embodiment is conducive to improving the connection stability between the elastic part and the sealing part 100, and effectively preventing the elastic part from falling off from the sealing part 100, thereby ensuring that under the tightening force of the elastic part, the sealing part 100 can be tightly attached to the outer peripheral wall of the fire protection pipe, thereby improving the sealing effect of the sealing part 100 at the connection gap of the fire protection pipe.
[0062] Similarly, in some embodiments, the third abutting end 122 may be provided with a third groove inside, the third groove is provided with a third elastic part 123, and the third abutting end 122 and the third elastic part 123 are an integrally formed structure, and the fourth abutting end 132 may be provided with a fourth groove inside, the fourth groove is provided with a fourth elastic part 133, and the fourth abutting end 132 and the fourth elastic part 133 are an integrally formed structure. The beneficial effects of the integrated structure between the third abutting end 122 and the third elastic part 123 and between the fourth abutting end 132 and the fourth elastic part 133 refer to the above embodiments, and will not be repeated here.
[0063] In some embodiments, reference Figure 1 to Figure 2 A shell 200 is provided on the side of the sealing part 100 away from the first pipe 300. The shell 200 includes a first shell 210 and a second shell 220. The first shell 210 and the second shell 220 are arranged around the sealing part 100, and the first shell 210 and the second shell 220 are connected by bolts to clamp the sealing part 100 at the connecting gap.
[0064] Specifically, in this embodiment, the sealing part 100 is clamped at the connection gap by the housing 200 in the form of a hoop structure, ensuring that the sealing performance of the sealing part 100 at the connection gap is good. Further, the tightness between the first shell 210 and the second shell 220 can be adjusted by adjusting the bolts, thereby adjusting the sealing performance of the sealing part 100 at the connection gap. The above-mentioned connection structure is used to clamp the sealing part 100 at the connection gap. The connection form is simple and easy to operate, which facilitates the installation and removal of the sealing part 100, and the sealing part 100 can be replaced in time after the sealing part 100 fails.
[0065] It should be noted that the clamp connection is a commonly used connection method in the art, so its structure will not be described in detail here.
[0066] In some embodiments, the sealing portion 100 is a structure made of rubber, and the first elastic portion 114 , the second elastic portion 115 , the third elastic portion 123 , and the fourth elastic portion 133 are all structures made of metal springs.
[0067] Specifically, in the present embodiment, the sealing part 100 can be made of rubber material, so that the sealing part 100 has good resilience and air tightness, and can ensure that the sealing part 100 and the outer peripheral wall of the fire pipe are closely fitted, thereby ensuring the sealing performance of the sealing part 100 at the connection gap of the fire pipe, and the rubber is hydrophobic, which can ensure that the sealing part 100 will not absorb excessive fire water in the first cavity 110, the second cavity 120 and the third cavity 130. In addition, the rubber has good anti-aging performance and is durable, which can ensure the service life of the sealing part 100 and avoid the frequent replacement of the sealing part 100.
[0068] The first elastic part 114, the second elastic part 115, the third elastic part 123 and the fourth elastic part 133 can all be made of stainless steel. The stainless steel elastic part has good mechanical properties, can play a contracting role on the sealing part 100 without being easily damaged and failing, and the stainless steel elastic part has good corrosion resistance, which can extend the service life of the elastic part in a humid working environment, and always ensure that the abutting end of the sealing part 100 can fit tightly with the outer peripheral wall of the fire protection pipe.
[0069] In some embodiments, the first pipe and the second pipe are fire-fighting pipes, and fire-fighting water is passed through the first pipe and the second pipe.
[0070] Correspondingly, another embodiment of the present invention further provides a fire fighting system, which includes the pipe connection structure in any of the above embodiments.
[0071] Specifically, in this embodiment, the fire fighting system using the above-mentioned pipe connection structure can ensure that the fire fighting water will not leak when the fire fighting water is transported, thereby ensuring the safe operation of other equipment under the fire fighting pipe. Thanks to the improvement of the above-mentioned pipe connection structure, the fire fighting system of this embodiment has the same technical effect as the above-mentioned pipe connection structure, which will not be described in detail here.
[0072] It should be noted that the other contents of the pipe connection structure and the fire protection system disclosed in the present utility model can be referred to the prior art and will not be described in detail here.
[0073] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A pipeline connection structure, used to connect a first pipeline and a second pipeline arranged adjacent to each other and seal a connection gap between the first pipeline and the second pipeline, characterized in that: The sealing part includes a first opening, the first opening is arranged around the connecting gap, the sealing part forms a first abutting end and a second abutting end at the first opening, the first abutting end surrounds and abuts against the outer peripheral wall of the first pipe, and the second abutting end surrounds and abuts against the outer peripheral wall of the second pipe, so that the sealing part forms a seal at the connecting gap; The first abutting end is provided with a first groove, the second abutting end is provided with a second groove, the first groove is provided with a first elastic part, the second groove is provided with a second elastic part, the first elastic part provides an elastic force toward the first pipe, and the second elastic part provides an elastic force toward the second pipe.
2. The pipeline connection structure according to claim 1, characterized in that: The sealing portion further includes a first cavity, the first cavity is communicated with the first opening, and the first cavity extends from the first abutting end and the second abutting end in a direction away from the connecting gap.
3. The pipeline connection structure according to claim 2, characterized in that: Along the axial direction of the first pipe and in a direction away from the first cavity, the sealing portion also includes a second cavity, the second cavity includes a second opening, and the sealing portion forms a third abutting end at an end of the second opening away from the first cavity, and the third abutting end abuts against the outer peripheral wall of the first pipe.
4. The pipeline connection structure according to claim 3, characterized in that: Along the axial direction of the second pipe and in the direction away from the first cavity, the sealing portion also includes a third cavity, the third cavity includes a third opening, and the sealing portion forms a fourth abutting end at one end of the third opening away from the first cavity, and the fourth abutting end abuts against the outer peripheral wall of the second pipe.
5. The pipeline connection structure according to claim 4, characterized in that: The third abutting end is provided with a third groove, the third groove is provided with a third elastic part, the third elastic part provides elastic force toward the first pipe, the fourth abutting end is provided with a fourth groove, the fourth groove is provided with a fourth elastic part, the fourth elastic part provides elastic force toward the second pipe.
6. The pipeline connection structure according to claim 1, characterized in that: The first abutting end and the first elastic portion are an integrally formed structure, and the second abutting end and the second elastic portion are an integrally formed structure.
7. The pipeline connection structure according to claim 1, characterized in that: A shell is provided on the side of the sealing portion facing away from the first pipe, and the shell includes a first shell and a second shell. The first shell and the second shell are arranged around the sealing portion, and the first shell and the second shell are connected by bolts for clamping the sealing portion at the connecting gap.
8. The pipeline connection structure according to claim 5, characterized in that: The sealing portion is a structure made of rubber, and the first elastic portion, the second elastic portion, the third elastic portion, and the fourth elastic portion are all structures made of metal springs.
9. The pipeline connection structure according to any one of claims 1 to 8, characterized in that: The first pipe and the second pipe are fire-fighting pipes.
10. A fire fighting system, characterized in that: The invention comprises the pipeline connection structure according to any one of claims 1 to 9.