Sealing device for fire-fighting pipeline connecting piece

Abstract

The utility model provides a fire-fighting pipeline connecting piece sealing device, which belongs to the technical field of fire-fighting pipelines, and comprises a first connecting pipe and a second connecting pipe which are spliced through a sealing piece, the two ends of the inner wall of the sealing piece are both provided with receding parts, and a plurality of clamping plates are arranged in each receding part in a sliding manner along the radial direction of the sealing piece. Each clamping plate and the corresponding receding part are connected through an elastic telescopic piece. The first connecting pipe and the second connecting pipe are sleeved with the transmission part and provided with clamping grooves. The transmission part is in transmission abutting fit with the clamping plate, and the clamping groove is in transmission clamping fit with the clamping plate. And threaded rings are fixedly arranged on the two transmission parts, and the two threaded rings are in one-to-one corresponding threaded fit with the two ends of the sealing piece. Under the elastic action of the elastic telescopic piece, in the process that the first connecting pipe and the second connecting pipe are inserted into the sealing piece for butt joint, the clamping plate cannot hinder the first connecting pipe and the second connecting pipe, and therefore the operation difficulty is lowered.

Description

TECHNICAL FIELD

[0001] The utility model belongs to fire control pipeline technical field, concretely relates to a fire control pipeline connecting piece sealing device. BACKGROUND

[0002] Fire control pipeline refers to the pipeline material for fire control, connecting fire control equipment and equipment, conveying fire extinguishing water, gas or other medium, due to special requirements, the thickness and material of fire control pipeline have special requirements, and are sprayed with red paint to convey fire water.In actual life, the sealing property of pipeline connection is very important, and the existing sealing device often puts the sealing ring in the connection of the pipeline, so that the pipeline is tightly combined with the sealing ring.

[0003] The patent with the publication number CN220286692U provides a pipeline connecting piece convenient to install, which is provided with a sealing rubber ring, a first connecting pipe, a second connecting pipe, a first annular protrusion, a second annular protrusion, a first annular groove, a second annular groove, an upper clamp, a lower clamp, a bolt and the like, and when in use, the sealing rubber ring is sleeved on one end of the first connecting pipe and the second connecting pipe provided with the first annular protrusion, so that the first annular protrusion on the first connecting pipe and the second connecting pipe is clamped into the second annular groove formed in the sealing rubber ring, thereby completing the butt joint of the first connecting pipe and the second connecting pipe.Then, the upper clamp and the lower clamp are inserted into the outside of the sealing rubber ring, so that the second annular protrusion on the sealing rubber ring is clamped into the first annular groove formed in the upper clamp and the lower clamp.Subsequently, the bolt is rotated to fix and clamp the upper clamp and the lower clamp.

[0004] The above scheme realizes the sealing connection of the first connecting pipe and the second connecting pipe by the insertion and clamping of the first annular protrusion and the second annular groove and the sealing rubber ring.However, in the process of sleeving the sealing rubber ring on the outer surface of the first connecting pipe and the second connecting pipe, the first annular protrusion hinders the sleeving of the sealing rubber ring, so that the operator needs to expand the opening of the sealing rubber ring, and the sealing rubber ring is easy to rebound in the process of expansion, which causes the failure of sleeving of the sealing rubber ring, and thus the expansion needs to be performed again, which leads to a large operation difficulty of the whole scheme. UTILITY MODEL CONTENTS

[0005] To solve the problems in the background art, the utility model provides a fire control pipeline connecting piece sealing device.

[0006] To achieve the above purpose, the utility model provides the technical scheme as follows:

[0007] The utility model provides a fire -fighting pipeline connecting piece sealing device, including first connecting pipe and second connecting pipe through the splicing of sealing piece, the inner wall of sealing piece is equipped with the department that gives room to each end, each department that gives room to each end is slid along the radial direction of sealing piece and is equipped with a plurality of clamping plates, and each clamping plate is connected with the department that gives room to each end through the setting elastic expansion piece, first connecting pipe and second connecting pipe are set transmission part and are equipped with the clamping groove, and transmission part and clamping plate transmission contact cooperation, and clamping groove and clamping plate transmission joint cooperation, two transmission parts are fixedly set threaded ring, and two threaded rings are corresponding with the two ends of sealing piece thread cooperation.

[0008] Further, the elastic expansion piece includes a placement slot, the placement slot is communicated and arranged in the department that gives room to each end, a telescopic rod is fixedly arranged in the placement slot, and the telescopic rod is arranged along the radial direction of the sealing piece; a spring is sleeved on the outer surface of the telescopic rod, the telescopic direction of the spring is the same as that of the telescopic rod, the top of the spring is fixedly connected with the placement slot, and the bottom of the spring is fixedly connected with the clamping plate.

[0009] Further, the second connecting pipe is fixedly provided with an annular sealing protrusion at one end, and the first connecting pipe and the second connecting pipe are provided with a sealing groove matched with the sealing protrusion at the opposite end.

[0010] Further, a plurality of limiting plates are fixedly arranged in the middle of the inner wall of the sealing piece, and the plurality of limiting plates are arranged in a circumferential array along the central axis of the sealing piece; a plurality of limiting grooves are arranged at the opposite ends of the first connecting pipe and the second connecting pipe, the limiting grooves on the first connecting pipe and the second connecting pipe are in one-to-one correspondence and are communicated, and the limiting grooves after being communicated are matched with the limiting plates and are in one-to-one limiting joint cooperation.

[0011] The application has the following beneficial effects:

[0012] 1. Under the elastic effect of the elastic expansion piece, the clamping plate does not hinder the first connecting pipe and the second connecting pipe during the process of inserting the first connecting pipe and the second connecting pipe into the sealing piece for butt joint, thereby reducing the operation difficulty. After butt joint is completed, the operator only needs to rotate the threaded ring to make the clamping plate enter the clamping groove, so that the limiting and fixing of the sealing piece to the first connecting pipe and the second connecting pipe can be completed.

[0013] 2. The sealing property of the first connecting pipe and the second connecting pipe after butt joint is further improved through the arrangement of the sealing protrusion and the sealing groove. BRIEF DESCRIPTION OF DRAWINGS

[0014] The above and other objects, features and advantages of the exemplary embodiments of the present application will be more apparent from the following detailed description read in conjunction with the accompanying drawings, in which:

[0015] Figure 1 is a schematic diagram of the overall structure of the present application;

[0016] Figure 2 is a sectional view of the present application;

[0017] Figure 3 is the present application Figure 2 A local enlarged schematic view of the place;

[0018] Figure 4 is a schematic diagram of the first connecting pipe structure of the present application.

[0019] Explanation of reference signs:

[0020] 1, the first connecting pipe; 2, the second connecting pipe; 3, the sealing element; 4, the placing groove; 5, the telescopic rod; 6, the spring; 7, the clamping plate; 8, the clamping groove; 9, the threaded ring; 10, the transmission part; 11, the limiting plate; 12, the limiting groove; 13, the accommodating part; 14, the sealing protrusion; 15, the sealing groove. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application, and those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0022] As Figures 1-4 shown, the technical scheme adopted by the present application is as follows: a fire-fighting pipeline connecting piece sealing device, comprising a first connecting pipe 1 and a second connecting pipe 2 spliced by a sealing element 3, the sealing element 3, the first connecting pipe 1 and the second connecting pipe 2 are coaxially arranged, an annular sealing protrusion 14 is fixedly arranged at one end of the second connecting pipe 2, and the end of the first connecting pipe 1 facing the second connecting pipe 2 is provided with a sealing groove 15 matched with the sealing protrusion 14. Through the plug-in cooperation of the sealing protrusion 14 and the sealing groove 15, the sealing effect after the connection of the first connecting pipe 1 and the second connecting pipe 2 is improved.

[0023] A plurality of limiting plates 11 are fixedly arranged in the middle of the inner wall of the sealing element 3, and the plurality of limiting plates 11 are distributed in a circumferential array along the central axis of the sealing element 3. The opposite ends of the first connecting pipe 1 and the second connecting pipe 2 are both provided with a plurality of limiting grooves 12, the limiting grooves 12 on the first connecting pipe 1 and the limiting grooves 12 on the second connecting pipe 2 are one-to-one corresponding and communicated, and the communicated limiting grooves 12 and the limiting plates 11 are matched and one-to-one corresponding limiting clamping. For limiting the limiting plate 11, to avoid the relative rotation of the limiting plate 11 and the first connecting pipe 1 and the second connecting pipe 2.

[0024] The inner wall of the sealing member 3 is provided with a letting part 13 at both ends, and a plurality of clamping plates 7 are slidably arranged in each letting part 13 along the radial direction of the sealing member 3. One side of the clamping plate 7 is arc-shaped, and each clamping plate 7 is connected with the letting part 13 through an elastic expansion member.

[0025] The elastic expansion member includes a placement groove 4, the letting part 13 is connected with the placement groove 4, the placement groove 4 is fixedly provided with an expansion rod 5, the expansion rod 5 is arranged along the radial direction of the sealing member 3, the top of the expansion rod 5 is fixedly connected with the placement groove 4, and the bottom of the expansion rod 5 is fixedly connected with the clamping plate 7. The outer surface of the expansion rod 5 is sleeved with a spring 6, the expansion direction of the spring 6 is the same as that of the expansion rod 5, the top of the spring 6 is fixedly connected with the placement groove 4, and the bottom of the spring 6 is fixedly connected with the clamping plate 7.

[0026] The outer surfaces of the first connecting pipe 1 and the second connecting pipe 2 are sleeved with a transmission part 10 and provided with a clamping groove 8, the transmission part 10 can slide and rotate on the outer surfaces of the first connecting pipe 1 and the second connecting pipe 2. The outer surface of the transmission part 10 is fixedly provided with a threaded ring 9 coaxial with the transmission part 10, and the two threaded rings 9 are threadedly connected with the two ends of the sealing member 3.

[0027] One side of the transmission part 10 is arc-shaped, the arc surface of the transmission part 10 is matched with and in transmission contact with the arc surface of the clamping plate 7, and the clamping plate 7 is in transmission clamping connection with the clamping groove 8.

[0028] The threaded ring 9 is rotated to threadedly connect the threaded ring 9 with the sealing member 3, the threaded ring 9 drives the transmission part 10 to rotate and approach the letting part 13, in the process of approaching, the arc surface of the transmission part 10 is in sliding contact with the arc surface of the clamping plate 7, so that the clamping plate 7 slides along the radial direction of the sealing member 3 towards the direction of approaching the central axis of the sealing member 3, thereby completing the clamping connection of the clamping plate 7 and the clamping groove 8 and realizing the splicing of the first connecting pipe 1 and the second connecting pipe 2. In this process, the spring 6 and the expansion rod 5 are stretched.

[0029] Working principle: when the first connecting pipe 1 and the second connecting pipe 2 need to be spliced, the first connecting pipe 1 and the second connecting pipe 2 are first arranged opposite to each other, the limiting grooves 12 on the first connecting pipe 1 and the second connecting pipe 2 are arranged opposite to the limiting plates 11 on the sealing member 3, and the opposite ends of the first connecting pipe 1 and the second connecting pipe 2 are inserted from the two ends of the sealing member 3.

[0030] During the insertion of the first connecting pipe 1 and the second connecting pipe 2, the clamping plate 7 is in a lifted state, and the clamping plate 7 does not hinder the insertion of the first connecting pipe 1 and the second connecting pipe 2. When the sealing protrusion 14 on the second connecting pipe 2 is completely inserted into the sealing groove 15 on the first connecting pipe 1, the limiting groove 12 on the first connecting pipe 1 and the second connecting pipe 2 just completes the limiting clamping of the limiting plate 11. At this time, the clamping plate 7 is opposite to the clamping groove 8.

[0031] Subsequently, the threaded ring 9 is rotated, so that the threaded ring 9 is screwed with the sealing element 3, and the threaded ring 9 drives the transmission part 10 to rotate to approach the accommodating part 13. During the approaching process, the arc surface of the transmission part 10 will slide against the arc surface of the clamping plate 7, so that the clamping plate 7 slides along the radial direction of the sealing element 3 to the direction of approaching the central axis of the sealing element 3, thereby completing the clamping of the clamping plate 7 and the clamping groove 8, and further realizing the splicing operation of the first connecting pipe 1 and the second connecting pipe 2. During the process, the spring 6 and the telescopic rod 5 are gradually stretched.

[0032] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A fire hose coupling seal apparatus, comprising: The utility model provides a sealing piece (3) is spliced to first connecting pipe (1) and second connecting pipe (2), the inner wall both ends of sealing piece (3) are all set up to let the department (13), and each let the department (13) is slid along the radial direction of sealing piece (3) and is set up a plurality of clamping plate (7), and each clamping plate (7) is connected with the let department (13) through setting elastic telescopic part, first connecting pipe (1) and second connecting pipe (2) are set up transmission part (10) on both sleeves, and are set up clamping slot (8), transmission part (10) and clamping plate (7) transmission counteract and cooperate, and clamping slot (8) and clamping plate (7) transmission clamping cooperation, two transmission parts (10) are all fixedly set threaded ring (9), and two threaded rings (9) and the both ends of sealing piece (3) one to one threaded cooperation.

2. The fire hose coupling seal apparatus of claim 1, wherein, The elastic telescopic part includes a placement slot (4), and the placement slot (4) is communicated and arranged in the let department (13), the telescopic rod (5) is fixedly arranged in the placement slot (4), and the telescopic rod (5) is arranged along the radial direction of the sealing piece (3); the outer surface of the telescopic rod (5) is sleeved with a spring (6), the spring (6) is arranged in the same direction as the telescopic rod (5), the top of the spring (6) is fixedly connected with the placement slot (4), and the bottom of the spring (6) is fixedly connected with the clamping plate (7).

3. The fire hose coupling seal apparatus of claim 1, wherein, The second connecting pipe (2) is fixedly provided with an annular sealing protrusion (14) at one end, and the first connecting pipe (1) and the second connecting pipe (2) are provided with a sealing groove (15) at the end facing each other, which is matched with the sealing protrusion (14).

4. The fire hose coupling seal apparatus of claim 1, wherein, The inner wall of the sealing piece (3) is fixedly provided with a plurality of limiting plates (11) in the middle, and the plurality of limiting plates (11) are distributed in a circular array along the central axis of the sealing piece (3); the facing ends of the first connecting pipe (1) and the second connecting pipe (2) are provided with a plurality of limiting grooves (12), the limiting grooves (12) on the first connecting pipe (1) and the second connecting pipe (2) are communicated one by one, and the limiting grooves (12) after communication are matched with the limiting plates (11) and are matched one by one.

Images