Plastic-coated steel pipe quick connecting device with good stability

Abstract

The utility model relates to the technical field of butt joint of plastic-coated steel pipes, in particular to a plastic-coated steel pipe quick connecting device with good stability. According to the technical scheme, the device comprises adjusting annular plates and a quick connecting pipe, butt joint annular plates are fixedly installed at the two ends of the quick connecting pipe, sealing rubber pads are fixedly installed on the outer sides of the butt joint annular plates, the two ends of the exterior of the quick connecting pipe are sleeved with the adjusting annular plates respectively, and the tops and the bottoms of the adjusting annular plates are movably installed on holding rings through installing plates. Through combination of various structures, the plastic-coated steel pipes are tightened during butt joint, so that the sealing performance of the device during butt joint of the plastic-coated steel pipes is improved, the quality of the plastic-coated steel pipes during quick connection is improved, the plastic-coated steel pipes are elastically cushioned during butt joint of the plastic-coated steel pipes, and the service life of the plastic-coated steel pipes is prolonged. And the situation that the butt joint position is loosened due to vibration generated by internal water flow during operation of the plastic-coated steel pipe is avoided, and the stability of the device during long-time butt joint use of the plastic-coated steel pipe is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic-coated steel pipe butt joint, in particular to a plastic-coated steel pipe quick-connect device with good stability. Background Art

[0002] Plastic coated steel pipe, also known as plastic coated pipe, steel-plastic composite pipe, plastic coated composite steel pipe, is a steel-plastic composite steel pipe with a steel pipe as the base, and a layer of plastic anti-corrosion layer is welded on the inner surface of the steel pipe (bottom pipe) by spraying, rolling, dipping and sucking processes, or a plastic anti-corrosion layer is welded on the inner and outer surfaces. The plastic coated steel pipe needs to be butt-jointed when in use, so a plastic coated steel pipe quick-connect device is needed. The application number is "CN212718576U" disclosed in "a plastic coated steel pipe quick-connect device with good stability", which has solved the technical disadvantage of poor stability of the plastic coated steel pipe after connection, but in actual use, devices with similar structures still have many defects, such as the overall structure The structure is relatively simple, and it does not have the function of adjusting the tightness of the plastic-coated steel pipe when it is connected. It is easy to have loose connections and gaps when the plastic-coated steel pipe is connected, resulting in low sealing quality when the plastic-coated steel pipe is quickly connected, reducing the sealing performance of the device for the plastic-coated steel pipe when it is quickly connected; at the same time, it does not have the function of elastically absorbing the connection when the plastic-coated steel pipe is connected. When the liquid in the plastic-coated steel pipe flows, the vibration will cause the connection to loosen, causing the connection between the device and the plastic-coated steel pipe to loosen after long-term use, resulting in poor stability of the device during use. Therefore, it is necessary to design a plastic-coated steel pipe quick connection device with good stability. Utility Model Content

[0003] The purpose of the utility model is to provide a plastic-coated steel pipe quick-connect device with good stability to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plastic-coated steel pipe quick-connect device with good stability, comprising an adjusting ring plate and a quick-connect pipe, both ends of the quick-connect pipe are fixedly installed with docking ring plates, and the outer sides of the docking ring plates are fixedly installed with sealing rubber pads, the adjusting ring plates are respectively sleeved on the two ends of the outer side of the quick-connect pipe, the top and bottom of the adjusting ring plate are movably installed on a holding ring through a mounting plate, and the front and back sides of the holding ring are fixedly installed with tightening plates, the tightening plates are used with two groups of tightening holes, the outer side of the holding ring is fixedly installed with a clamping ring, and the inner wall of the clamping ring is fixedly installed with multiple groups of anti-slip rubber rings, the inner side of the adjusting ring plate is threaded with two groups of adjusting screws, the front and back sides of the docking ring plate are fixedly installed with adjusting plates used in conjunction with the adjusting screws, and a corrugated pipe is fixedly installed at the central position of the quick-connect pipe.

[0005] A plastic-coated steel pipe quick-connect device with good stability using the technical solution, the docking ring plate can dock the plastic-coated steel pipes, the sealing pad increases the sealing performance when the docking ring plate and the plastic-coated steel pipe are docked, the quick-connect pipe can connect the plastic-coated steel pipes, thereby facilitating the connection operation between the plastic-coated steel pipes, the holding ring moves at the top and bottom of the adjusting ring plate through the mounting plate, and the adjusting ring plate is clamped at both ends of the outer wall of the quick-connect pipe;

[0006] When the quick-connect pipe is connected to the plastic-coated steel pipe, the holding ring is clamped on its outer wall, and the tightening bolt is movably installed in the tightening hole on the tightening plate, so that the holding ring can be shrunk and tightened on the outside of the plastic-coated steel pipe through the tightening bolt and the tightening plate, and the clamping ring can increase the contact area between the holding ring and the plastic-coated steel pipe, and the anti-slip rubber ring increases the friction force of the inner wall of the clamping ring, so that the clamping ring and the anti-slip rubber ring increase the stability of the holding ring and the plastic-coated steel pipe when they are tightly held, and avoid the slippage between the holding ring and the plastic-coated steel pipe, so that the holding ring plate and the plastic-coated steel pipe can be fixed when they are connected, and the connecting ring plate can be adjusted by rotating the adjusting screw, so that the tightness of the connecting ring plate and the plastic-coated steel pipe interface can be adjusted when they are connected, thereby increasing the firmness and sealing of the device when connecting the plastic-coated steel pipe;

[0007] The bellows can perform elastic shock-absorbing treatment when the quick-connect pipe is connected to the plastic-coated steel pipe, avoiding the situation where the vibration generated by the flow of liquid in the plastic-coated steel pipe causes the connection between the device and the plastic-coated steel pipe to loosen, thereby increasing the functionality of the device and improving its stability during long-term use.

[0008] Preferably, a heat-insulating layer is fixedly installed inside the bellows, and an anti-corrosion layer is fixedly installed inside the heat-insulating layer. The heat-insulating layer can perform heat-insulating treatment on the outside of the bellows during operation, thereby preventing the supervisor from accidentally touching the bellows during heat flow transmission by the plastic-coated steel pipe and causing burns, and the anti-corrosion layer can perform anti-corrosion treatment on the outside of the bellows, thereby increasing the service life of the bellows.

[0009] Preferably, the outer wall of the docking ring plate is fixedly mounted with multiple sets of support plates, and the support plates are fixedly mounted with support springs. The support springs can elastically support the bellows during operation, thereby avoiding or reducing the deformation of the bellows during long-term use.

[0010] Preferably, a plurality of groups of reinforcing rib rings are fixedly installed at equal distances inside the bellows, which increase the strength of the bellows and prolong the service life of the bellows.

[0011] Preferably, two sets of tightening bolts are movably installed inside the tightening hole, and manual nuts are installed on the external threads of the tightening bolts. The tightening bolts and the manual nuts can perform tightening operations between the tightening plates.

[0012] Preferably, a slot is provided on the outer side of the butt-jointed ring plate, and a convex plate is fixedly installed on the inner side of the sealing rubber pad. The convex plate is inserted into the slot to limit the sealing rubber pad, thereby increasing the stability of the sealing rubber pad during operation.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. By setting the cooperation between the docking ring plate and the sealing pad, the holding ring and the adjusting bolt, the docking slide plate can directly dock the two groups of plastic-coated steel pipes. At the same time, the sealing pad increases the sealing performance of the device when docking the plastic-coated steel pipe. The holding ring can be fixed on the outside of the plastic-coated steel pipe, so that the device can be fixed to the plastic-coated steel pipe during operation. The adjusting bolt can be used to tighten the device when docking the plastic-coated steel pipe, thereby increasing the sealing performance of the device when docking the plastic-coated steel pipe and improving the quality of quick connection of the plastic-coated steel pipe.

[0015] 2. By setting the coordination between the bellows and the reinforcing rib ring, the bellows can perform elastic shock absorption when the device is docked with the plastic-coated steel pipe, avoiding the loosening of the docking joint caused by the vibration generated by the internal water flow of the plastic-coated steel pipe during operation, thereby increasing the stability of the device when docking the plastic-coated steel pipe for a long time. The reinforcing rib ring increases the strength of the bellows during use and improves the service life of the bellows. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the unfolded structure of the holding ring of the utility model;

[0018] Figure 3 This is a schematic diagram of the quick-connect pipe structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the quick-connect pipe of the utility model;

[0020] Figure 5 It is a schematic diagram of the ring structure of the utility model.

[0021] In the figure: 1. holding ring; 101. tightening plate; 102. mounting plate; 103. tightening hole; 2. snap ring; 201. anti-skid rubber ring; 3. tightening bolt; 301. manual nut; 4. adjusting ring plate; 401. adjusting screw; 5. quick pipe; 501. bellows; 502. supporting spring; 503. reinforcing rib ring; 504. anti-corrosion layer; 505. thermal insulation layer; 6. docking ring plate; 601. adjusting plate; 602. supporting plate; 603. sealing rubber pad; 604. slot; 605. convex plate. DETAILED DESCRIPTION

[0022] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] Embodiment 1

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the utility model proposes a plastic-coated steel pipe quick-connect device with good stability, including an adjusting ring plate 4 and a quick-connect pipe 5, both ends of the quick-connect pipe 5 are fixedly installed with a docking ring plate 6, and the outer side of the docking ring plate 6 is fixedly installed with a sealing rubber pad 603, the adjusting ring plate 4 is respectively sleeved on the two ends of the outer side of the quick-connect pipe 5, the top and bottom of the adjusting ring plate 4 are movably installed on the holding ring 1 through the mounting plate 102, and the front and back of the holding ring 1 are fixedly installed with a tightening plate 101, and the tightening plate 101 is used for two groups of tightening holes 103, the outer side of the holding ring 1 is fixedly installed with a clamping ring 2, and the inner wall of the clamping ring 2 is fixedly installed with multiple groups of anti-slip rubber rings 201, the inner side of the adjusting ring plate 4 is threaded with two groups of adjusting screws 401, the front and back of the docking ring plate 6 are fixedly installed with an adjusting plate 601 used in conjunction with the adjusting screw 401, and a bellows 501 is fixedly installed at the central position of the quick-connect pipe 5;

[0025] A plurality of groups of reinforcing rib rings 503 are fixedly installed at equal intervals inside the bellows 501 , two groups of tightening bolts 3 are movably installed inside the tightening hole 103 , and manual nuts 301 are installed on the external threads of the tightening bolts 3 .

[0026] The working principle of the plastic-coated steel pipe quick-connect device with good stability based on Example 1 is: the docking ring plate 6 can dock the plastic-coated steel pipes, the sealing rubber pad 603 increases the sealing performance when the docking ring plate 6 and the plastic-coated steel pipe are docked, the quick-connect pipe 5 can connect the plastic-coated steel pipes, thereby facilitating the connection operation between the plastic-coated steel pipes, the holding ring 1 moves on the top and bottom of the adjusting ring plate 4 through the mounting plate 102, and the adjusting ring plate 4 is clamped on both ends of the outer wall of the quick-connect pipe 5;

[0027] When the quick-connect pipe 5 is connected to the plastic-coated steel pipe, the holding ring 1 is clamped on its outer wall, and the tightening bolt 3 is movably installed in the tightening hole 103 on the tightening plate 101, so that the holding ring 1 can be contracted and tightened on the outside of the plastic-coated steel pipe through the tightening bolt 3 and the tightening plate 101. The manual nut 301 is convenient for the staff to tighten the tightening plate 101 manually. The clamping ring 2 can increase the contact area between the holding ring 1 and the plastic-coated steel pipe, and the anti-slip rubber ring 201 increases the friction of the inner wall of the clamping ring 2 , thereby increasing the stability of the holding ring 1 and the plastic-coated steel pipe when they are tightly held by the clamp ring 2 and the anti-slip rubber ring 201, avoiding the slippage between the holding ring 1 and the plastic-coated steel pipe, so that the docking ring plate 6 and the plastic-coated steel pipe can be fixed by the holding ring 1 and the clamp ring 2 when they are docked, and the docking ring plate 6 can be adjusted by rotating the adjusting screw 401, so that the tightness of the docking ring plate 6 and the plastic-coated steel pipe interface when docking can be adjusted, thereby increasing the firmness and sealing of the device when docking the plastic-coated steel pipe;

[0028] The bellows 501 can perform elastic shock-absorbing treatment when the quick-connect pipe 5 is connected to the plastic-coated steel pipe, avoiding the vibration generated when the liquid flows in the plastic-coated steel pipe and causing the connection between the device and the plastic-coated steel pipe to loosen. Therefore, the functionality of the device is increased and the stability of long-term use is improved. The reinforcing rib ring 503 increases the strength of the bellows 501 and improves the service life of the bellows 501.

[0029] Embodiment 2

[0030] like Figure 2 , Figure 3 and Figure 4 As shown, the utility model proposes a plastic-coated steel pipe quick-connect device with good stability. Compared with the first embodiment, this embodiment also includes: a heat insulation layer 505 is fixedly installed inside the corrugated tube 501, and an anti-corrosion layer 504 is fixedly installed on the inner side of the heat insulation layer 505, a plurality of groups of support plates 602 are fixedly installed on the outer wall of the docking ring plate 6, and a support spring 502 is fixedly installed on the support plate 602, a card groove 604 is provided on the outer side of the docking ring plate 6, and a convex plate 605 is fixedly installed on the inner side of the sealing rubber pad 603.

[0031] In this embodiment, Figure 4 As shown, the heat insulation layer 505 can perform heat insulation treatment on the outside of the bellows 501 during operation, avoiding the situation where the supervisor accidentally touches the bellows 501 during heat flow transmission of the plastic-coated steel pipe and causes burns. The anti-corrosion layer 504 can perform anti-corrosion treatment on the outside of the bellows 501, thereby increasing the service life of the bellows 501; Figure 2 and Figure 3 , Figure 4As shown, the support spring 502 can elastically support the bellows 501 during operation, thereby avoiding or reducing the deformation of the bellows 501 during long-term use; Figure 4 As shown, the protruding plate 605 inserted into the slot 604 can limit the sealing rubber pad 603, thereby increasing the stability of the sealing rubber pad 603 during operation.

[0032] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A plastic-coated steel pipe quick-connect device with good stability, comprising an adjusting ring plate (4) and a quick-connect pipe (5), characterized in that: Both ends of the quick-connect pipe (5) are fixedly mounted with docking ring plates (6), and the outer sides of the docking ring plates (6) are fixedly mounted with sealing rubber pads (603). The adjusting ring plates (4) are respectively sleeved on the two ends of the outside of the quick-connect pipe (5). The top and bottom of the adjusting ring plates (4) are movably mounted on the holding ring (1) through the mounting plate (102), and the front and back sides of the holding ring (1) are fixedly mounted with tightening plates (101). The tightening plates (101) are used on the two ends of the holding ring (1). A tightening hole (103) is formed on the outer side of the holding ring (1), a clamping ring (2) is fixedly installed on the inner wall of the clamping ring (2), and a plurality of anti-slip rubber rings (201) are fixedly installed on the inner wall of the adjusting ring plate (4), two sets of adjusting screws (401) are fixedly installed on the inner thread of the adjusting ring plate (4), an adjusting plate (601) used in conjunction with the adjusting screws (401) is fixedly installed on the front and back sides of the docking ring plate (6), and a bellows (501) is fixedly installed at the central position of the quick-connect pipe (5).

2. A plastic-coated steel pipe quick-connect device with good stability according to claim 1, characterized in that: A heat insulation layer (505) is fixedly installed inside the bellows (501), and an anti-corrosion layer (504) is fixedly installed on the inner side of the heat insulation layer (505).

3. A plastic-coated steel pipe quick-connect device with good stability according to claim 1, characterized in that: A plurality of groups of support plates (602) are fixedly mounted on the outer wall of the docking ring plate (6), and support springs (502) are fixedly mounted on the support plates (602).

4. A plastic-coated steel pipe quick-connect device with good stability according to claim 1, characterized in that: A plurality of groups of reinforcing rib rings (503) are fixedly installed at equal intervals inside the bellows (501).

5. The plastic-coated steel pipe quick-connect device with good stability according to claim 1, characterized in that: Two groups of tightening bolts (3) are movably installed inside the tightening hole (103), and manual nuts (301) are installed on the external threads of the tightening bolts (3).

6. A plastic-coated steel pipe quick-connect device with good stability according to claim 1, characterized in that: A clamping groove (604) is provided on the outer side of the docking ring plate (6), and a convex plate (605) is fixedly installed on the inner side of the sealing rubber pad (603).

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