Height-adjustable water conveying pipe structure and combined type eyewash equipment

Abstract

The utility model discloses a height-adjustable water delivery pipe structure and a composite eyewash equipment, the water delivery pipe structure comprises a fixed pipe, an adjusting nut, a movable pipe and a sealing plug ring. A water conveying pipeline is formed by a fixed pipe and a movable pipe which are matched in an inserted mode, the fixed pipe is in clearance fit with the movable pipe, an adjusting nut is in threaded connection with the upper end of the fixed pipe, and a sealing plug ring is arranged on the outer wall of the movable pipe in a sleeving mode and located in the adjusting nut. The diameter of the sealing plug ring tends to be reduced, the movable pipe is held tightly, the position of the movable pipe is fixed, meanwhile, a gap between the fixed pipe and the movable pipe is sealed, and normal use of a water conveying pipeline is guaranteed. The height-adjustable water conveying pipe structure is applied to the combined type eyewash equipment, so that the overall height of the combined type eyewash equipment can be adjusted, and the combined type eyewash equipment is not limited by using space.

Description

Technical Field

[0001] The utility model relates to the field of eye washers, in particular to a water delivery pipe structure with adjustable height and a composite eye washer. Background Art

[0002] As a commonly used emergency shower equipment, eyewash has a large application demand in chemical plants and laboratories where chemicals need to be operated. The original eyewash with only eyewash function is usually only about one meter high and fixed to the ground by a pipe. The upper end of the steel pipe is equipped with eyewash nozzles and switches and other related facilities. This structure basically meets the requirements of on-site use. However, after the composite eyewash has added the shower function, the overall height of the equipment exceeds 2 meters.

[0003] Existing eyewashers, such as Chinese invention patent application CN202111276916.6, disclose an eyewasher equipped with a remote monitoring module for real-time monitoring of water quality. The height of the eyewasher is determined at the factory and cannot be adjusted according to the installation environment. If the space height at the site is not enough, it cannot be installed and used. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a water delivery pipe structure with adjustable height and a composite eyewash device using the structure, which can adjust the height of the equipment according to the space of the use environment.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A height-adjustable water pipe structure, characterized by comprising:

[0007] A fixed tube having an adjustment thread at the upper end of the outer wall thereof;

[0008] The adjusting nut has a lower section of an inner cavity having a threaded section connected to the adjusting thread, and an upper section of the inner cavity being a conical pressure regulating section;

[0009] The movable tube has its lower end inserted into the fixed tube and fits in with the inner wall of the fixed tube; and

[0010] A sealing plug ring is sleeved on the outer wall of the movable tube, the ring of the sealing plug ring has an opening, the upper section of the outer wall of the sealing plug ring has a conical pressure surface, the pressure surface is in contact with the pressure regulating section of the adjusting nut, the lower section of the outer wall of the sealing plug ring has an inverted cone-shaped sealing surface, and the lower end of the sealing plug ring is inserted into the gap between the fixed tube and the movable tube.

[0011] A further technical solution is that the upper end of the adjusting nut is provided with a threaded locking hole, a locking pin is screwed into the threaded locking hole, and the locking pin can radially tighten the outer wall of the movable tube.

[0012] A further technical solution is that the threaded locking holes have three or four holes evenly distributed in the circumferential direction.

[0013] A further technical solution is that a guide sealing joint is fixed to the bottom end of the movable tube, and the guide sealing joint can be in sealing contact with the inner wall of the fixed tube.

[0014] A further technical solution is that a plurality of sealing rings are embedded on the guide sealing joint and the inner wall of the fixed tube, and the sealing rings are in contact and seal with the inner wall of the fixed tube.

[0015] A further technical solution is that an air bag ring is provided between the inner cavity at the upper end of the adjusting nut and the outer wall of the movable tube, the air bag ring is located above the sealing plug ring, and the inflation-deflation nozzle of the air bag ring is exposed outwardly.

[0016] A composite eyewash, comprising an eyewash basin and a shower head, characterized in that the height-adjustable water pipe structure described in any one of the above items is applied, the lower end of the fixed pipe is connected to the water inlet of the composite eyewash, a control valve for controlling the conduction or cutoff of the pipeline is provided on the fixed pipe, the water supply pipeline of the eyewash basin is connected to the side wall of the movable pipe, and the shower head is connected to the top of the movable pipe.

[0017] The beneficial effects of adopting the above technical solution are:

[0018] In the height-adjustable water pipe structure, a water pipe is formed by plugging and matching fixed pipes and movable pipes, and a clearance fit is provided between the fixed pipe and the movable pipe to facilitate the expansion and contraction of the movable pipe during adjustment, so that the height of the eyewash station matches the use environment.

[0019] In order to ensure the overall sealing of the water pipe, a sealing plug ring is provided. The upper and lower ends of the outer wall of the sealing plug ring have conical surfaces facing oppositely. The conical pressure surface at the upper end contacts the pressure regulating section of the adjusting nut, and the inverted conical sealing surface at the lower end is inserted into the gap between the fixed pipe and the movable pipe. When the adjusting nut is screwed downward with the fixed pipe, the upper end surface of the sealing plug ring is pressed downward by the adjusting nut. Because the sealing plug ring has a taper, due to the principle of force decomposition, the force on the sealing plug ring is decomposed into a downward force and a force perpendicular to the central axis. Under the action of the decomposed force, and because the sealing plug ring has an annular opening, the diameter of the sealing plug ring tends to become smaller, and the movable pipe is tightly held. The opening is closed, so that the position of the movable pipe is fixed, and at the same time, the gap between the fixed pipe and the movable pipe is sealed to ensure the normal use of the water pipeline.

[0020] Regarding the sealing of the sealing plug ring, when the adjusting nut is tightened, the upper end face of the outer wall of the sealing plug ring is in sealing contact with the inner wall of the adjusting nut, the lower end face of the outer wall of the sealing plug ring is in sealing contact with the inner wall of the fixed tube, and the inner wall of the sealing plug ring is in sealing contact with the outer wall of the movable tube. That is, through the setting of the sealing plug ring, upper and lower seals are achieved between the fixed tube and the movable tube, and the sealing effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] Figure 1 It is a structural schematic diagram of the water delivery pipe structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the cross-sectional structure of the water delivery pipe structure of the utility model;

[0024] Figure 3 It is a structural schematic diagram of the adjusting nut in the utility model;

[0025] Figure 4 It is a structural schematic diagram of the sealing plug ring in the utility model;

[0026] Figure 5 It is a structural schematic diagram of the composite eyewash device in the utility model. DETAILED DESCRIPTION

[0027] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] like Figure 1 to Figure 4 As shown, a height-adjustable water pipe structure includes a fixed pipe 10, an adjusting nut 30, a movable pipe 20 and a sealing plug ring 40. The fixed pipe 10 and the movable pipe 20 are plugged together to form a water pipe, and a clearance fit is set between the fixed pipe 10 and the movable pipe 20 to facilitate the expansion and contraction of the movable pipe 20 during adjustment, so that the height of the eyewash station matches the use environment.

[0030] An adjusting thread is provided at the upper end of the outer wall of the fixed tube 10, and the lower section of the inner cavity of the adjusting nut 30 has a thread section connected to the adjusting thread, so that the adjusting nut 30 is threadedly connected to the upper end of the fixed tube 10. The lower end of the movable tube 20 is inserted into the fixed tube 10, and its outer diameter is smaller than the inner diameter of the fixed tube 10 and matches the gap with the inner wall of the fixed tube 10. The sealing plug ring 40 is sleeved on the outer wall of the movable tube 20 and is located in the adjusting nut 30.

[0031] The upper section of the inner cavity of the adjusting nut 30 is a tapered pressure regulating section 31. The sealing plug ring 40 has an opening on the annular direction, and the upper section of the outer wall of the sealing plug ring 40 has a tapered pressure receiving surface 41, which contacts the pressure regulating section 31 of the adjusting nut 30. The lower section of the outer wall of the sealing plug ring 40 has an inverted tapered sealing surface 42, and the lower end of the sealing plug ring 40 is inserted into the gap between the fixed tube 10 and the movable tube 20.

[0032] In order to ensure the sealing of the water pipe as a whole, a sealing plug ring 40 is provided. The upper and lower ends of the outer wall of the sealing plug ring 40 have conical surfaces facing oppositely. The conical pressure surface 41 at the upper end contacts the pressure regulating section 31 of the adjusting nut 30, and the inverted conical sealing surface 42 at the lower end is inserted into the gap between the fixed pipe 10 and the movable pipe 20. When the adjusting nut 30 and the fixed pipe 10 are screwed downward, the upper end surface of the sealing plug ring 40 is pressed downward by the adjusting nut 30. Because the sealing plug ring 40 has a taper, due to the principle of force decomposition, the force on the sealing plug ring 40 is decomposed into a downward force and a force perpendicular to the central axis. Under the action of the decomposed force, and because the sealing plug ring 40 has an axial opening, the diameter of the sealing plug ring 40 tends to become smaller, and the movable pipe 20 is tightly held to fix the position of the movable pipe 20. At the same time, the gap between the fixed pipe 10 and the movable pipe 20 is sealed to ensure the normal use of the water pipe.

[0033] Regarding the sealing of the sealing plug ring 40, when the adjusting nut 30 is tightened, the upper end surface of the outer wall of the sealing plug ring 40 is in sealing contact with the inner wall of the adjusting nut 30, the lower end surface of the outer wall of the sealing plug ring 40 is in sealing contact with the inner wall of the fixed tube 10, and the inner wall of the sealing plug ring 40 is in sealing contact with the outer wall of the movable tube 20. That is, through the setting of the sealing plug ring 40, the upper and lower seals between the fixed tube 10 and the movable tube 20 are achieved, and the sealing effect is better.

[0034] The adjusting nut 30 can be locked with the movable tube 20 after adjustment, further improving the stability of the movable tube 20 in the adjusted state. A threaded locking hole 32 is provided at the upper end of the adjusting nut 30, and a locking pin is screwed into the threaded locking hole 32. The locking pin can radially press against the outer wall of the movable tube 20, thereby achieving the grip of the movable tube 20. Preferably, the threaded locking holes 32 have three or four circumferentially evenly distributed, so that the movable tube 20 is uniformly stressed in the circumferential direction, ensuring the coaxiality of the movable tube 20 and the fixed tube 10.

[0035] Furthermore, a guide sealing joint 50 is fixed at the bottom end of the movable tube 20, and the guide sealing joint 50 can be in sealing contact with the inner wall of the fixed tube 10. The movable tube 20 and the fixed tube 10 are in sliding contact only through the guide sealing joint 50, which ensures the coaxiality between the movable tube 20 and the fixed tube 10, ensures the stability of the annular gap between the two, and makes the sealing plug ring 40 uniformly stressed in the annular direction.

[0036] A plurality of sealing rings 51 are embedded on the inner wall of the guide sealing joint 50 and the fixed pipe 10, and the sealing rings 51 are in contact and sealed with the inner wall of the fixed pipe 10. The guide sealing joint 50 seals the gap between the movable pipe 20 and the fixed pipe 10, further ensuring the sealing of the faucet as a whole and preventing water seepage.

[0037] In addition, in order to prevent impurities from entering through the adjusting nut 30 and affecting the airtightness of the sealing plug ring 40, an inflatable bag ring 60 is provided between the inner cavity at the upper end of the adjusting nut 30 and the outer wall of the movable tube 20. The inflatable bag ring 60 can be bonded and fixed to the adjusting nut 30. The inflatable bag ring 60 is located above the sealing plug ring 40, and the inflation-deflation nozzle of the inflatable bag ring 60 is exposed to the outside. When the height of the movable tube 20 needs to be adjusted, the inflatable bag ring 60 is in a deflated state. When the height of the movable tube 20 is locked, the inflatable bag ring 60 is inflated to expand it, and the upper end of the adjusting nut 30 is sealed to prevent impurities from entering.

[0038] A composite eyewash station, such as Figure 5 As shown, it includes an eyewash basin 101 and a spray head 102, and uses any of the above-mentioned height-adjustable water pipe structures. The lower end of the fixed pipe 10 is connected to the water inlet of the compound eyewash. A control valve for controlling the conduction or cutoff of the pipeline is provided on the fixed pipe 10. The water supply pipeline of the eyewash basin 101 is connected to the side wall of the movable pipe 20 through a three-way joint, and the spray head 102 is connected to the top of the movable pipe 20. By using the height-adjustable water pipe structure, the overall height of the compound eyewash can be adjusted without being limited by the use space.

[0039] The above are only preferred embodiments of the present invention. Any simple modification, deformation and equivalent replacement made by anyone to the present invention according to the content of the present invention shall fall within the protection scope of the present invention.

Claims

1. A height-adjustable water pipe structure, characterized in that: include: A fixed tube (10) having an adjustment thread at the upper end of its outer wall; An adjusting nut (30), wherein the lower section of the inner cavity thereof has a threaded section connected to the adjusting thread, and the upper section of the inner cavity is a conical pressure regulating section (31); The movable tube (20) has its lower end inserted into the fixed tube (10) and is gap-matched with the inner wall of the fixed tube (10); and A sealing plug ring (40) is sleeved on the outer wall of the movable tube (20). The sealing plug ring (40) has an opening on the annular direction. The upper section of the outer wall of the sealing plug ring (40) has a conical pressure-bearing surface (41), and the pressure-bearing surface (41) contacts the pressure-adjusting section (31) of the adjusting nut (30). The lower section of the outer wall of the sealing plug ring (40) has an inverted conical sealing surface (42). The lower end of the sealing plug ring (40) is inserted into the gap between the fixed tube (10) and the movable tube (20).

2. The height-adjustable water pipe structure according to claim 1, characterized in that: The upper end of the adjusting nut (30) is provided with a threaded locking hole (32), a locking pin is screwed into the threaded locking hole (32), and the locking pin can radially press against the outer wall of the movable tube (20).

3. The height-adjustable water pipe structure according to claim 2, characterized in that: The threaded locking holes (32) are three or four in number and are evenly distributed in the circumferential direction.

4. The height-adjustable water pipe structure according to claim 1, characterized in that: A guide sealing joint (50) is fixed to the bottom end of the movable tube (20), and the guide sealing joint (50) can be in sealing contact with the inner wall of the fixed tube (10).

5. The height-adjustable water pipe structure according to claim 4, characterized in that: A plurality of sealing rings (51) are embedded on the inner wall of the guide sealing joint (50) and the fixed tube (10), and the sealing rings (51) are in contact and sealed with the inner wall of the fixed tube (10).

6. The height-adjustable water pipe structure according to claim 1, characterized in that: An inflatable bag ring (60) is provided between the inner cavity at the upper end of the adjusting nut (30) and the outer wall of the movable tube (20). The inflatable bag ring (60) is located above the sealing plug ring (40), and the inflation-deflation nozzle of the inflatable bag ring (60) is exposed to the outside.

7. A composite eyewash, comprising an eyewash basin (101) and a shower head (102), characterized in that: The height-adjustable water pipe structure according to any one of claims 1 to 6 is applied, the lower end of the fixed pipe (10) is connected to the water inlet of the composite eyewash, a control valve for controlling the conduction or shutoff of the pipeline is provided on the fixed pipe (10), the water supply pipeline of the eyewash basin (101) is connected to the side wall of the movable pipe (20), and the spray head (102) is connected to the top of the movable pipe (20).

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