Flame-retardant PP pipe structure

Abstract

The utility model relates to the technical field of PP (polypropylene) pipes, and discloses a flame-retardant PP pipe structure, which solves the problem that a PP pipe is inconvenient to connect with other pipelines quickly at present, and comprises a pipe body, a connecting pipe is arranged on the outer side of the pipe body, and a connecting mechanism is mounted between the connecting pipe and the pipe body. The connecting mechanism comprises a first connecting sleeve fixed to the end, close to the connecting pipe, of the pipe body. According to the utility model, through the cooperation of the positioning hole and the positioning rod and the cooperation of the insertion plate and the limiting frame, the connection of the connecting sleeve I and the connecting sleeve II is facilitated, and through the cooperation of the screw rod, the nut and the mounting plate, the fixation of the two sliding plates after moving along the two sliding chutes respectively is facilitated; and through cooperation between a movable rod and a side block and cooperation between a side groove and a fixing frame, the two limiting rods can conveniently penetrate through the two inserting plates correspondingly, then the first connecting sleeve and the second connecting sleeve can be fixed, and therefore the pipe body and the connecting pipe can be conveniently and rapidly connected and fixed.

Description

Technical Field

[0001] The utility model belongs to the technical field of PP pipes, in particular to a flame-retardant PP pipe structure. Background Art

[0002] PP pipe is a non-toxic, hygienic, high temperature resistant and recyclable pipe type. It is mainly used in indoor hot and cold water supply systems of buildings and is also widely used in heating systems. The characteristics of PP pipe are corrosion-resistant, wear-resistant, non-scaling, reduced vibration and noise, anti-freezing and anti-condensation, less heat loss, simple installation and long service life.

[0003] Currently, the connection between PP pipes and other pipes is mostly flange connection, so multiple bolts are needed, which makes the operation more complicated and inconvenient to quickly connect the PP pipes with other pipes. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a flame-retardant PP pipe structure, which effectively solves the problem that it is currently inconvenient to quickly connect the PP pipe with other pipes.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flame-retardant PP pipe structure, comprising a pipe body, a connecting pipe is provided on the outer side of the pipe body, and a connecting mechanism is installed between the connecting pipe and the pipe body;

[0006] The connecting mechanism includes a connecting sleeve 1 fixed to one end of the pipe body near the connecting pipe, a connecting sleeve 2 is fixedly installed on one end of the connecting pipe near the pipe body, two plug plates are symmetrically fixedly installed on one side of the connecting sleeve 1 near the connecting sleeve 2, and the two plug plates both penetrate the connecting sleeve 2, and two limit frames are symmetrically fixedly installed on the side of the connecting sleeve 2 away from the connecting sleeve 1, and the two limit frames are respectively sleeved on the outside of the two plug plates, and a side frame is fixedly installed on the side of the connecting sleeve 2 away from the connecting sleeve 1, and the side frame is fixedly sleeved on the outside of the connecting pipe, and two fixed frames are symmetrically fixedly installed on the outside of the side frame, and the insides of the two fixed frames are movably sleeved with limit rods, and the two limit rods respectively penetrate the two plug plates, and two positioning rods are symmetrically fixedly installed on one side of the connecting sleeve 1 near the connecting sleeve 2, and two positioning holes are symmetrically provided on the side of the connecting sleeve 2 near the connecting sleeve 1, and the two positioning rods are respectively inserted into the two positioning holes.

[0007] Preferably, a screw is fixedly installed on the outer side of the side frame, a mounting plate is movably sleeved on the outer side of the screw, a nut is provided on the side of the mounting plate away from the side frame, the nut is threadedly sleeved on the outer side of the screw, two slides are symmetrically fixedly connected to the side of the mounting plate close to the side frame, two sliding grooves are symmetrically provided on the outer side of the side frame, and the two slides are slidably connected to the two sliding grooves respectively.

[0008] Preferably, the two fixed frames are provided with side grooves, and side blocks are slidably connected in the two side grooves. The two side blocks are respectively fixed to the outsides of the two limit rods, and movable rods are rotatably connected to the two side blocks. One end of the two movable rods is rotatably connected to the two slides.

[0009] Preferably, a sealing gasket 1 is fixedly installed on a side of the connecting sleeve 1 close to the connecting sleeve 2, and a side of the connecting sleeve 2 close to the connecting sleeve 1 is in contact with the sealing gasket 1.

[0010] Preferably, an inner ring is fixedly installed inside the connecting sleeve 1, a sealing gasket 2 is fixedly installed on the side of the inner ring close to the connecting pipe, a connecting ring is fixedly installed on the side of the connecting sleeve 2 close to the connecting sleeve 1, and the connecting ring is arranged inside the connecting sleeve 1 and fits with the sealing gasket 2.

[0011] Preferably, the tube body comprises an inner tube, an outer tube is arranged on the outer side of the inner tube, a flame retardant layer is bonded to the outer side of the inner tube, the flame retardant layer is located on the inner side of the outer tube, and reinforcing ribs are bonded between the flame retardant layer and the outer tube.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The utility model facilitates the connection between the first connecting sleeve and the second connecting sleeve through the cooperation between the positioning hole and the positioning rod and between the plug plate and the limiting frame, and facilitates the fixation of the two slide plates after they move along the two slide grooves respectively through the cooperation between the screw rod and the nut and the mounting plate, and facilitates the two limiting rods to penetrate the two plug plates respectively through the cooperation between the movable rod and the side block and the side groove and the fixing frame, and then can fix the first connecting sleeve and the second connecting sleeve, so as to facilitate the rapid connection and fixation of the pipe body and the connecting pipe;

[0014] (2) The new type facilitates improving the sealing performance between the connecting sleeve 1 and the connecting sleeve 2 by coordinating between the connecting sleeve 2 and the sealing gasket 1, as well as between the sealing gasket 2 and the connecting ring, thereby ensuring the sealing between the pipe body and the connecting pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0016] In the attached picture:

[0017] Figure 1 This is a schematic diagram of the structure of the flame-retardant PP pipe of the utility model;

[0018] Figure 2 This is a schematic diagram of the pipe structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the connection mechanism of the utility model;

[0020] Figure 4 This is a structural schematic diagram of a connecting sleeve of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the second connecting sleeve of the utility model;

[0022] Figure 6 This is a schematic diagram of the side frame structure of the utility model;

[0023] Figure 7 For this utility model Figure 6 Enlarged structural diagram at A in the middle.

[0024] In the figure: 1. tube body; 101. inner tube; 102. outer tube; 103. reinforcing rib; 104. flame retardant layer; 2. connecting mechanism; 201. connecting sleeve 1; 202. connecting sleeve 2; 203. side frame; 204. limiting frame; 205. positioning rod; 206. sealing gasket 1; 207. inner ring; 208. sealing gasket 2; 209. plug-in plate; 2010. positioning hole; 2011. connecting ring; 2012. mounting plate; 2013. screw rod; 2014. nut; 2015. slide plate; 2016. movable rod; 2017. side block; 2018. limiting rod; 2019. fixing frame; 2020. side groove; 2021. slide groove; 3. connecting tube. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0026] Embodiment 1, by Figure 1-2 The utility model includes a tube body 1, a connecting tube 3 is provided on the outside of the tube body 1, a connecting mechanism 2 is installed between the connecting tube 3 and the tube body 1, the tube body 1 includes an inner tube 101, an outer tube 102 is provided on the outside of the inner tube 101, a flame retardant layer 104 is bonded to the outside of the inner tube 101, the flame retardant layer 104 is located on the inside of the outer tube 102, and a reinforcing rib 103 is bonded between the flame retardant layer 104 and the outer tube 102;

[0027] When in use, the inner tube 101 and the outer tube 102 are both made of PP resin, which has good mechanical properties and processing properties. The flame retardant layer 104 is made of a material composed of flame retardants and other additives, which can form a protective layer during the combustion process to isolate oxygen and heat, thereby achieving a flame retardant effect. Reinforcing ribs 103 are arranged between the flame retardant layer 104 and the outer tube 102 to improve the structural strength of the entire pipe.

[0028] Specifically, by Figure 2-7 The connection mechanism 2 includes a connection sleeve 1 201 fixed to one end of the pipe body 1 near the connection pipe 3, a connection sleeve 202 is fixedly installed at one end of the connection pipe 3 near the pipe body 1, two plug plates 209 are symmetrically fixedly installed on one side of the connection sleeve 1 201 near the connection sleeve 202, and the two plug plates 209 both penetrate the connection sleeve 202, and two limit frames 204 are symmetrically fixedly installed on one side of the connection sleeve 202 away from the connection sleeve 1 201, and the two limit frames 204 are respectively sleeved on the two plug plates 209. On the outside, a side frame 203 is fixedly installed on the side of the second connecting sleeve 202 away from the first connecting sleeve 201, and the side frame 203 is fixedly sleeved on the outside of the connecting pipe 3. Two fixed frames 2019 are symmetrically fixedly installed on the outside of the side frame 203. The insides of the two fixed frames 2019 are both movably sleeved with limit rods 2018. The two limit rods 2018 pass through the two plug plates 209 respectively. Two positioning rods 205 are symmetrically fixedly installed on the side of the connecting sleeve 1 201 close to the second connecting sleeve 202. The connecting sleeve 202 is close to the second connecting sleeve 202. Two positioning holes 2010 are symmetrically arranged on one side of the connecting sleeve 201, and two positioning rods 205 are respectively inserted into the two positioning holes 2010. A screw rod 2013 is fixedly installed on the outer side of the side frame 203, and a mounting plate 2012 is movably sleeved on the outer side of the screw rod 2013. A nut 2014 is provided on the side of the mounting plate 2012 away from the side frame 203, and the nut 2014 is threadedly sleeved on the outer side of the screw rod 2013. Two slide plates 2012 are symmetrically fixedly connected to the side of the mounting plate 2012 close to the side frame 203. 15. Two slide grooves 2021 are symmetrically provided on the outer side of the side frame 203, and the two slide plates 2015 are slidably connected to the two slide grooves 2021 respectively. The two fixed frames 2019 are each provided with a side groove 2020, and the two side grooves 2020 are slidably connected with a side block 2017. The two side blocks 2017 are respectively fixed to the outer sides of the two limit rods 2018, and the two side blocks 2017 are rotatably connected with a movable rod 2016, and one end of the two movable rods 2016 is rotatably connected to the two slide plates 2015 respectively.

[0029] When in use, first, the two plug plates 209 are passed through the connecting sleeve 202 until the two positioning rods 205 are fully inserted into the two positioning holes 2010 respectively. At this time, the two limit frames 204 are respectively sleeved on the outside of the two plug plates 209, and then the mounting plate 2012 is moved along the screw rod 2013 and close to the side frame 203, driving the two slide plates 2015 to slide along the two slide grooves 2021 respectively, and then the two side blocks 2017 are driven by the two movable rods 2016 to slide in the two side grooves 2020 respectively, and at the same time, the two limit rods 2018 are respectively moved along the two fixed frames 2019 until the two limit rods 2018 respectively pass through the two plug plates 209, and then the nut 2014 is tightened to limit the mounting plate 2012, so as to realize the fixation of the connecting sleeve 1 201 and the connecting sleeve 2 202, and finally complete the quick connection of the pipe body 1 and the connecting pipe 3.

[0030] Specifically, by Figure 4-5 It is given that a sealing gasket 1 206 is fixedly installed on one side of the connecting sleeve 1 201 close to the connecting sleeve 2 202, and a side of the connecting sleeve 202 close to the connecting sleeve 1 201 is in contact with the sealing gasket 1 206, an inner ring 207 is fixedly installed inside the connecting sleeve 1 201, and a sealing gasket 208 is fixedly installed on one side of the inner ring 207 close to the connecting pipe 3, and a connecting ring 2011 is fixedly installed on one side of the connecting sleeve 202 close to the connecting sleeve 1 201, and the connecting ring 2011 is sleeved inside the connecting sleeve 1 201 and in contact with the sealing gasket 208;

[0031] In the use state, when the tube body 1 is connected to the connecting tube 3, the connecting sleeve 202 fits with the sealing gasket 1 206, and at the same time the connecting ring 2011 is sleeved inside the connecting sleeve 1 201 and fits with the sealing gasket 208, thereby improving the sealing performance between the connecting sleeve 1 201 and the connecting sleeve 2 202 through double sealing.

Claims

1. A flame retardant PP pipe structure, comprising a pipe body (1), characterized in that: A connecting pipe (3) is provided on the outside of the pipe body (1), and a connecting mechanism (2) is installed between the connecting pipe (3) and the pipe body (1); The connection mechanism (2) comprises a connection sleeve 1 (201) fixed to one end of the pipe body (1) close to the connection pipe (3); a connection sleeve 2 (202) is fixedly installed on one end of the connection pipe (3) close to the pipe body (1); two plug plates (209) are symmetrically fixedly installed on one side of the connection sleeve 1 (201) close to the connection sleeve 2 (202); the two plug plates (209) both penetrate the connection sleeve 2 (202); two limit frames (204) are symmetrically fixedly installed on one side of the connection sleeve 2 (202) away from the connection sleeve 1 (201); the two limit frames (204) are respectively sleeved on the outer sides of the two plug plates (209); the connection sleeve 2 (202) is fixedly installed on one side of the connection sleeve 2 (201) away from the connection sleeve 1 (201); A side frame (203) is fixedly installed, the side frame (203) is fixedly sleeved on the outer side of the connecting pipe (3), two fixed frames (2019) are symmetrically fixedly installed on the outer side of the side frame (203), the interiors of the two fixed frames (2019) are movably sleeved with limit rods (218), the two limit rods (218) respectively penetrate the two plug plates (209), two positioning rods (205) are symmetrically fixedly installed on one side of the connecting sleeve 1 (201) close to the connecting sleeve 2 (202), two positioning holes (2010) are symmetrically provided on one side of the connecting sleeve 2 (202) close to the connecting sleeve 1 (201), and the two positioning rods (205) are respectively inserted into the two positioning holes (2010).

2. A flame retardant PP pipe structure according to claim 1, characterized in that: A screw rod (2013) is fixedly mounted on the outer side of the side frame (203); a mounting plate (2012) is movably sleeved on the outer side of the screw rod (2013); a nut (2014) is provided on the side of the mounting plate (2012) away from the side frame (203); the nut (2014) is threadedly sleeved on the outer side of the screw rod (2013); two slide plates (2015) are symmetrically fixedly connected to the side of the mounting plate (2012) close to the side frame (203); two slide grooves (2021) are symmetrically arranged on the outer side of the side frame (203); and the two slide plates (2015) are respectively slidably connected to the two slide grooves (2021).

3. The flame-retardant PP pipe structure according to claim 1, characterized in that: The two fixed frames (2019) are each provided with a side groove (2020), the two side grooves (2020) are each slidably connected with a side block (2017), the two side blocks (2017) are respectively fixed to the outside of the two limit rods (2018), the two side blocks (2017) are each rotatably connected with a movable rod (2016), and one end of the two movable rods (2016) is respectively rotatably connected to the two slide plates (2015).

4. The flame-retardant PP pipe structure according to claim 1, characterized in that: A sealing gasket 1 (206) is fixedly installed on the side of the connecting sleeve 1 (201) close to the connecting sleeve 2 (202), and a side of the connecting sleeve 2 (202) close to the connecting sleeve 1 (201) is in contact with the sealing gasket 1 (206).

5. The flame-retardant PP pipe structure according to claim 1, characterized in that: An inner ring (207) is fixedly installed inside the connecting sleeve 1 (201), a sealing gasket 2 (208) is fixedly installed on the side of the inner ring (207) close to the connecting pipe (3), and a connecting ring (2011) is fixedly installed on the side of the connecting sleeve 2 (202) close to the connecting sleeve 1 (201), and the connecting ring (2011) is sleeved inside the connecting sleeve 1 (201) and fits with the sealing gasket 2 (208).

6. The flame-retardant PP pipe structure according to claim 1, characterized in that: The tube body (1) comprises an inner tube (101), an outer tube (102) is arranged on the outer side of the inner tube (101), a flame retardant layer (104) is bonded to the outer side of the inner tube (101), the flame retardant layer (104) is located on the inner side of the outer tube (102), and a reinforcing rib (103) is bonded between the flame retardant layer (104) and the outer tube (102).

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