CN219198499U - Connection structure of steel pipe and plastic tubing - Google Patents

Abstract

The utility model belongs to the technical field of pipeline connection structures, and particularly relates to a connection structure of a steel pipe and a plastic pipe; comprising the following steps: the steel pipe body is arranged on the sliding groove on one side in a sliding manner and moves to one side of the bottom plate along the sliding groove; the plastic pipe body is arranged on the sliding groove at the other side in a sliding way, and moves to the other side of the bottom plate along the sliding groove, and the end surfaces of the plastic pipe body and the steel pipe body are contacted with each other; the fixing assembly is arranged on the bottom plate and used for fixedly connecting the steel pipe body and the plastic pipe body into a whole; the positioning assemblies are arranged on two sides of the bottom plate and are used for positioning the steel pipe body and the plastic pipe body; the positioning assembly can prevent the phenomenon that the steel pipe body or the plastic pipe body is tilted to cause displacement when vibrating due to natural reasons. The utility model provides a steel pipe and plastic pipe fixing device, which can strengthen the fixation of the steel pipe and the plastic pipe, avoid the seesaw phenomenon of the steel pipe and the plastic pipe and ensure that the connection precision of the steel pipe and the plastic pipe is better.

Description

Connection structure of steel pipe and plastic tubing

Technical Field

The utility model belongs to the technical field of pipeline connection structures, and particularly relates to a connection structure of a steel pipe and a plastic pipe.

Background

Pipe connection refers to the connection of pipe sections that have been prefabricated into a finished system according to the requirements of the design drawing. During construction, different connection modes are selected according to the materials of the used pipes. Common pipeline connection methods such as threaded connection, flange connection, welding connection, socket connection, pipeline bonding connection and the like.

The plastic steel pipe is formed by combining a steel pipe and a plastic pipe, inherits the respective advantages of the steel pipe and the plastic pipe, simultaneously abandons the respective disadvantages, has the advantages of high strength, corrosion resistance, long service life and the like, and is widely applied to pipeline engineering such as water supply and drainage, heating ventilation, pollution discharge and the like. Most of the plastic steel pipes are fixedly connected with each other in a flange connection mode, but the traditional flange is relatively tedious and laborious to assemble and disassemble, and bolts and nuts matched with the flange are separated from each other, so that the risk of dropping and losing in the connection process is also caused.

The Chinese patent publication No. CN204254125U discloses a secondary elastic sealing steel pipe and plastic pipe connecting structure, which is characterized in that the sealing ring is additionally arranged on the outer circumference of the steel pipe combined with the plastic pipe to ensure the tightness of the connection between the plastic pipe and the steel pipe, although the technology provides the sealing performance between the steel pipe and the plastic pipe, the connection strength between the steel pipe and the plastic pipe is increased, and the sealing reliability is greatly improved; however, the whole structure of the technology is simpler, the protection performance between the steel pipe and the plastic pipe is poor, when the steel pipe or the plastic pipe vibrates or shakes due to some factors or natural reasons, the connecting end of the steel pipe and the plastic pipe is easy to damage, and when the steel pipe and the plastic pipe are connected, the steel pipe or the plastic pipe is easy to tilt and cause displacement phenomenon due to the fact that the inside of a connecting sleeve is smooth when the steel pipe or the plastic pipe vibrates due to other natural reasons, the connection between the steel pipe and the plastic pipe is influenced, the steel pipe or the plastic pipe slides down, and the connection precision is poor.

Disclosure of Invention

The utility model aims at solving the technical problems, and provides a connecting structure for fixing a steel pipe and a plastic pipe, which can avoid the warping phenomenon of the steel pipe and the plastic pipe and ensure that the steel pipe and the plastic pipe have better connecting precision.

In view of the above, the present utility model provides a connection structure of a steel pipe and a plastic pipe, comprising:

a bottom plate;

the base is provided with two bases which are respectively arranged at two sides of the bottom plate;

the chute is centrally arranged on the base;

the steel pipe body is arranged on the sliding groove on one side in a sliding manner and moves to one side of the bottom plate along the sliding groove;

the plastic pipe body is arranged on the sliding groove at the other side in a sliding way, and moves to the other side of the bottom plate along the sliding groove, and the end surfaces of the plastic pipe body and the steel pipe body are contacted with each other;

the fixing assembly is arranged on the bottom plate and used for fixedly connecting the steel pipe body and the plastic pipe body into a whole;

the positioning assemblies are arranged on two sides of the bottom plate and are used for positioning the steel pipe body and the plastic pipe body;

wherein, the locating component includes:

the lower shell is arranged on two sides of the bottom plate, the steel pipe body is positioned in the lower shell on one side, and the plastic pipe body is positioned in the lower shell on the other side;

the first brackets are respectively arranged on the front side and the rear side of the lower shell;

the second brackets are respectively arranged at two sides of the front side of the bottom plate;

the guide rod is arranged on the second bracket;

the sliding block is arranged on the guide rod in a sliding manner;

the elastic piece is arranged between the sliding block and the second bracket and provides an elastic force for the sliding block to move downwards;

the upper shell is arranged on the sliding block and covers the lower shell, the plastic pipe body and the steel pipe body.

In this technical scheme, when needs are connected steel pipe body and plastic tubing body, people pull the slider earlier, the slider moves along the guide bar upside, the elastic component is stretched, the slider drives the upper casing and moves to the upside, go up the casing and move to the back that breaks away from with lower casing, people just move steel pipe and plastic tubing respectively from the spout to in the lower casing, until the terminal surface with steel pipe and plastic tubing moves to mutual contact, after steel pipe and plastic tubing are placed, people just loosen the slider, under the reset action of elastic component, the slider moves to the downside along the guide bar, simultaneously the slider drives the upper casing and moves to the downside and contact with lower casing, close lower casing through last casing, compress tightly steel pipe and plastic tubing with it, thereby prevent that steel pipe or plastic tubing from taking place the displacement, make steel pipe and plastic tubing fixed connection become an organic whole, fix steel pipe and plastic tubing's length direction position through last casing and lower casing, thereby prevent that steel pipe and plastic tubing from taking place the perk and leading to displacement phenomenon because of the vibrations that natural cause, fix the effect is better to steel pipe and plastic tubing, so alright to realize fixing steel pipe and plastic tubing, prevent that steel pipe and plastic tubing from taking place hard collision with other objects from taking place, perk and the precision with the improvement.

In any of the above technical solutions, further, the elastic member is a return spring.

In the technical scheme, the reset spring is adopted as the elastic piece, so that the device has the advantages of being good in effect, convenient to install, low in price and the like, and production cost is saved.

In any of the above technical solutions, further, the inner diameter of the upper shell is the same as the inner diameter of the lower shell, and the upper shell and the lower shell are covered to form a fixing groove.

In this technical scheme, move to the lid through last casing downside and close down the casing to the internal diameter between last casing and the lower casing is the same, and forms the fixed slot, and the fixed slot can be to holding steel pipe and plastic tubing, and under the effect of last casing and lower casing, fixes its steel pipe and plastic tubing, prevents that steel pipe or plastic tubing from taking place the displacement, makes steel pipe and plastic tubing connect more accurately.

In any of the above solutions, further, the fixing assembly includes:

the first fixing sleeve is arranged at one end of the steel pipe body adjacent to the plastic pipe body;

the second fixing sleeve is arranged at one end of the plastic pipe body adjacent to the steel pipe body;

the first flange plate is arranged on the first fixed sleeve;

the second flange plate is arranged on the second fixed sleeve and is adjacent to the first flange plate;

the flange holes are formed in the first flange plate and the second flange plate along the circumferential direction;

the bolts penetrate through the flange holes on the same side and are in threaded connection with the flange holes.

In this technical scheme, when needs are connected steel pipe and plastic tubing, people move steel pipe and plastic tubing respectively along the spout in to the inferior valve earlier, until remove steel pipe and plastic tubing to first fixed sleeve and second fixed sleeve in, first fixed sleeve and second fixed sleeve can fix steel pipe and plastic tubing, the terminal surface of its steel pipe and plastic tubing is right thereafter, cover the fixed slot that the inferior valve formed through last casing, fix a position steel pipe and plastic tubing for steel pipe and plastic tubing are difficult for taking place the displacement, at this moment people wear the flange hole with the bolt, connect fixedly its first ring flange and second ring flange, thereby lock steel pipe and plastic tubing, make steel pipe and plastic tubing connect as an organic wholely, so alright reach and fix steel pipe and plastic tubing, make its steel pipe and plastic tubing connect as an organic wholely, the better effect of connection precision.

In any of the above technical solutions, further, a rubber gasket is arranged between the first flange plate and the second flange plate, and the rubber gasket is located between the outer diameters of the connecting ends of the steel pipe body and the plastic pipe body.

In the technical scheme, the rubber gasket has the performances of oil resistance, acid and alkali resistance, cold and heat resistance, aging resistance and the like, and can be directly cut into sealing gaskets in various shapes. The sealing performance of the steel pipe and the plastic pipe to material transportation can be improved through the rubber gasket, friction is reduced, leakage is prevented, isolation is prevented, and loosening or pressure dispersion is prevented.

In any one of the above technical solutions, further, the rubber gasket is provided with positioning holes along the circumferential direction, and the number of the positioning holes is consistent with and corresponds to the number of the flange holes one by one, and the bolts penetrate through the flange holes and then penetrate through the positioning holes.

In this technical scheme, through set up the locating hole that locates the flange hole the same position on the rubber pad circle to after wearing the flange hole with the bolt, wear again and set for the locating hole, with its first ring flange and second ring flange and rubber packing ring fixed connection as an organic wholely, make the difficult emergence displacement of rubber packing ring, better assurance steel pipe body and plastic tubing body between the leakproofness.

In any of the above technical solutions, the device further comprises an auxiliary assembly for auxiliary fixing of the steel pipe body and the plastic pipe body;

wherein, auxiliary assembly includes:

the third bracket is arranged on the upper shell;

the sliding rod is arranged on the third bracket in a sliding manner;

the moving block is arranged on the sliding rod;

the buffer spring is arranged between the moving block and the third bracket;

the pressing plate is arranged on the moving block;

the jacking blocks are uniformly arranged at the bottom of the pressing plate at intervals;

the guide grooves are formed in the upper shell, the number of the guide grooves is consistent with that of the jacking blocks in a one-to-one correspondence mode, and the jacking blocks penetrate through the guide grooves and are in contact with the steel pipe body and the plastic pipe body.

In this technical scheme, initially, the kicking block is stretching into the guide way in, buffer spring is normal condition, when last casing lid closes lower casing, when carrying out the location to steel pipe body and plastic tubing body, steel pipe body and plastic tubing body extrusion kicking block, make the kicking block drive the clamp plate and move to the upside, the clamp plate drives the movable block and moves to the upside, the movable block drives the slide bar and moves to the upside, buffer spring is slightly tensile, elasticity through buffer spring, play the cushioning effect to the movable block, thereby slightly weak friction and striking or the noise that structural resonance produced by steel pipe body or plastic tubing body, at this moment, the kicking block top tightly steel pipe body and plastic tubing body's external diameter, thereby supplementary steel pipe body and plastic tubing body take place the location, prevent steel pipe body or plastic tubing body to take place the displacement, when needs to dismantle steel pipe body and plastic tubing body, people move the upper casing and steel pipe body and plastic tubing body and it, the upper casing drives the third support and moves the upside, the movable block is moved to the upside, the movable block is driven to the movable block, the movable block drives the movable block is moved to the upside, the movable block is driven the clamp plate is moved to the upside, the clamp plate is driven to the movable block is moved to the side, the movable block is driven to the top side is moved to the side, the side is moved to the top is broken away from the top side to the steel pipe body or the lower side is moved to the noise that the structure resonance forms, at the side is moved down, at the end is moved to the side is moved to the reset to the side of plastic pipe body, can be moved to the plastic pipe side is moved to the plastic steel pipe side is moved to be moved to the plastic steel side.

The beneficial effects of the utility model are as follows:

1. the upper shell and the lower shell are used for positioning the steel pipe body and the plastic pipe body through the upper shell and the lower shell, so that the phenomenon of displacement caused by tilting of the steel pipe and the plastic pipe due to vibration generated by natural reasons is prevented, the connection of the steel pipe and the plastic pipe can be enhanced, and the steel pipe or the plastic pipe and other objects are prevented from being rigidly collided to cause displacement and tilting, and the connection precision of the steel pipe and the plastic pipe is prevented from being influenced;

2. the first flange plate and the second flange plate are fixedly connected through the flange holes penetrated by the bolts, so that the steel pipe and the plastic pipe are locked, and the steel pipe and the plastic pipe are connected into a whole, thus the effect of fixing the steel pipe and the plastic pipe, connecting the steel pipe and the plastic pipe into a whole and having better connection precision can be achieved;

3. the sealing performance of the steel pipe and the plastic pipe to material transportation can be improved through the rubber gasket, friction is reduced, leakage is prevented, isolation is prevented, and loosening or pressure dispersion is prevented.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic perspective view of a positioning assembly according to the present utility model;

FIG. 3 is a schematic view of a portion of a perspective structure of the present utility model;

FIG. 4 is a schematic perspective view of an auxiliary assembly of the present utility model;

FIG. 5 is an exploded view of the securing assembly of the present utility model;

the reference numerals in the drawings are: 1. a bottom plate; 2. a base; 3. a chute; 4. a steel pipe body; 5. a plastic tube body; 6. a fixing assembly; 61. a first fixed sleeve; 62. a second fixed sleeve; 63. a first flange; 64. a second flange; 65. a flange hole; 66. a bolt; 7. a positioning assembly; 71. a lower housing; 72. a first bracket; 73. a second bracket; 74. a guide rod; 75. a slide block; 76. an elastic member; 77. an upper housing; 8. a fixing groove; 9. a rubber gasket; 91. positioning holes; 10. an auxiliary component; 101. a third bracket; 102. a slide bar; 103. a moving block; 104. a buffer spring; 105. a pressing plate; 106. a top block; 107. a guide groove.

Detailed Description

Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some of the embodiments of the present application, but not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.

In the description of the present application, it is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. For ease of description, the dimensions of the various features shown in the drawings are not drawn to actual scale. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the authorization specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

Example 1:

as shown in fig. 1, 2, 3 and 5, the present embodiment provides a connection structure of a steel pipe and a plastic pipe, including:

a base plate 1;

the base 2 is provided with two bases which are respectively arranged at two sides of the bottom plate 1;

the chute 3 is centrally arranged on the base 2;

the steel pipe body 4 is arranged on the sliding groove 3 on one side in a sliding manner and moves to one side of the bottom plate 1 along the sliding groove 3;

the plastic pipe body 5 is arranged on the sliding groove 3 on the other side in a sliding way, and moves to the other side of the bottom plate 1 along the sliding groove 3, and the end surfaces of the plastic pipe body 5 and the steel pipe body 4 are contacted with each other;

the fixing component 6 is arranged on the bottom plate 1 and is used for fixedly connecting the steel pipe body 4 and the plastic pipe body 5 into a whole;

the positioning assemblies 7 are arranged on two sides of the bottom plate 1 and are used for positioning the steel pipe body 4 and the plastic pipe body 5;

wherein the positioning assembly 7 comprises:

the lower shells 71 are arranged on two sides of the bottom plate 1, the steel pipe body 4 is positioned in the lower shell 71 on one side, and the plastic pipe body 5 is positioned in the lower shell 71 on the other side;

the first brackets 72 provided in plural numbers on the front and rear sides of the lower case 71, respectively;

the second brackets 73 are respectively arranged on two sides of the front side of the bottom plate 1;

a guide lever 74 provided on the second bracket 73;

a slider 75 slidably disposed on the guide rod 74;

an elastic member 76 disposed between the slider 75 and the second bracket 73, the elastic member 76 providing an elastic force to move downward to the slider 75;

the upper case 77 is provided on the slider 75 and covers the lower case 71, the plastic pipe body 5, and the steel pipe body 4.

In this technical scheme, when needing to connect steel pipe body 4 and plastic tubing body 5, people pull slider 75 earlier, slider 75 moves along guide bar 74 to the upside, elastic component 76 is stretched, slider 75 drives upper casing 77 and moves to the upside, after upper casing 77 moves to and breaks away from the contact with lower casing 71, people just move steel pipe and plastic tubing respectively from spout 3 to in lower casing 71, until the terminal surface of steel pipe and plastic tubing moves to each other to contact, after steel pipe and plastic tubing are placed, people just loosen slider 75, under the reset action of elastic component 76, slider 75 moves down along guide bar 74, slider 75 drives upper casing 77 downside to contact with lower casing 71 simultaneously, through upper casing 77 lid lower casing 71, compress tightly steel pipe and plastic tubing, thereby prevent that steel pipe or plastic tubing from taking place the displacement, make steel pipe and plastic tubing fixed connection become an organic whole, through upper casing 77 and lower casing 71 fixed steel pipe's length direction position, thereby prevent that steel pipe and plastic tubing from taking place the perk and leading to displacement phenomenon because of natural reason from taking place, for its steel pipe and plastic tubing, it is better to the fixed effect, so, can be to the positioning and the rigid connection with other plastic tubing that bump and other can be reached to the impact, prevent that the displacement from taking place with other plastic tubing.

Example 2:

the present embodiment provides a connection structure of a steel pipe and a plastic pipe, which has the following technical features in addition to the technical scheme of the above embodiment.

As shown in fig. 2 and 4, in the present embodiment, the resilient member 76 is preferably a return spring.

In the technical scheme, the return spring is adopted as the elastic piece 76, so that the effect is good, the installation is convenient, the price is low, and the production cost is saved.

As shown in fig. 4, in the present embodiment, the inner diameter of the upper housing 77 is optimally the same as the inner diameter of the lower housing 71, and is covered to form the fixing groove 8.

In this technical scheme, move to the lid through last casing 77 downside and close down casing 71 to the internal diameter between last casing 77 and the lower casing 71 is the same, and forms fixed slot 8, and fixed slot 8 can be to holding steel pipe and plastic tubing, and under the effect of last casing 77 and lower casing 71, fixes its steel pipe and plastic tubing, prevents that steel pipe or plastic tubing from taking place the displacement, makes steel pipe and plastic tubing connect more accurately.

As shown in fig. 1, 2, 3 and 5, in the present embodiment, the fixing assembly 6 preferably comprises:

a first fixing sleeve 61 provided at one end of the steel pipe body 4 adjacent to the plastic pipe body 5;

a second fixing sleeve 62 provided at one end of the plastic pipe body 5 adjacent to the steel pipe body 4;

a first flange 63 disposed on the first fixing sleeve 61;

the second flange 64 is disposed on the second fixing sleeve 62 and adjacent to the first flange 63;

a flange hole 65 formed in the first flange 63 and the second flange 64 in the circumferential direction;

the bolts 66 pass through the flange holes 65 on the same side and are connected with the flange holes 65 in a threaded manner.

In this technical scheme, when needing to connect steel pipe and plastic tubing, people move steel pipe and plastic tubing respectively along spout 3 to down in the casing 71, until remove steel pipe and plastic tubing to first fixed sleeve 61 and second fixed sleeve 62 in, first fixed sleeve 61 and second fixed sleeve 62 can fix steel pipe and plastic tubing, the terminal surface of its steel pipe and plastic tubing is to the back, fix a position steel pipe and plastic tubing through the fixed slot 8 that lower casing 71 was formed of last casing 77 cover, make steel pipe and plastic tubing be difficult for taking place the displacement, at this moment people wear flange hole 65 with bolt 66, connect its first ring flange 63 and second ring flange 64 fixedly, thereby lock steel pipe and plastic tubing, make steel pipe and plastic tubing connect as an organic wholely, so alright reach and fix steel pipe and plastic tubing, make steel pipe and plastic tubing connect as an organic wholely, the better effect of connection precision.

As shown in fig. 1 and 5, in the present embodiment, preferably, a rubber gasket 9 is provided between the first flange 63 and the second flange 64, and the rubber gasket 9 is located between the outer diameters of the connection ends of the steel pipe body 4 and the plastic pipe body 5.

In the technical scheme, the rubber gasket 9 has the performances of oil resistance, acid and alkali resistance, cold and heat resistance, aging resistance and the like, and can be directly cut into sealing gaskets in various shapes. The sealing performance of the steel pipe and the plastic pipe to material transportation can be improved through the rubber gasket 9, and friction is reduced, leakage is prevented, isolation is prevented, and loosening or pressure dispersion is prevented.

As shown in fig. 5, in the present embodiment, the rubber gasket 9 is optimally provided with positioning holes 91 along the circumferential direction, and the number of the positioning holes 91 is consistent with and corresponds to the number of the flange holes 65 one by one, and the bolts 66 penetrate through the flange holes 65 and then penetrate through the positioning holes 91.

In this technical scheme, through set up in the locating hole 91 of flange hole 65 the same position on rubber packing ring 9 to wear to establish flange hole 65 with bolt 66 after, wear to establish locating hole 91 again, with its first ring flange 63 and second ring flange 64 and rubber packing ring 9 fixed connection as an organic wholely, make rubber packing ring 9 be difficult for taking place the displacement, better assurance steel pipe body 4 and plastic tubing body 5 between the leakproofness.

As shown in fig. 1-4, in the present embodiment, the steel pipe body 4 and the plastic pipe body 5 are optimally fixed by an auxiliary assembly 10;

wherein the auxiliary assembly 10 comprises:

a third bracket 101 provided on the upper case 77;

the sliding rod 102 is arranged on the third bracket 101 in a sliding manner;

a moving block 103 disposed on the slide bar 102;

a buffer spring 104 provided between the moving block 103 and the third bracket 101;

a platen 105 disposed on the moving block 103;

the top blocks 106 are arranged at the bottom of the pressing plate 105 at equal intervals;

guide grooves 107 are formed in the upper case 77, the number of the guide grooves 107 corresponds to the number of the top blocks 106 one by one, and the top blocks 106 pass through the guide grooves 107 and contact the steel pipe body 4 and the plastic pipe body 5.

In the technical scheme, initially, the top block 106 extends into the guide groove 107, the buffer spring 104 is in a normal state, when the upper shell 77 covers the lower shell 71 and positions the steel pipe body 4 and the plastic pipe body 5, the top block 106 contacts with the outer diameter of the steel pipe body 4 or the plastic pipe body 5, the steel pipe body 4 and the plastic pipe body 5 squeeze the top block 106, the top block 106 drives the pressing plate 105 to move upwards, the pressing plate 105 drives the moving block 103 to move upwards, the moving block 103 drives the slide bar 102 to move upwards, the buffer spring 104 is slightly stretched, the elasticity of the buffer spring 104 is used for buffering the moving block 103, so that the friction and impact generated by the steel pipe body 4 or the plastic pipe body 5 or noise formed by structural resonance is slightly weaker, at this time, the top block 106 pushes against the outer diameters of the steel pipe body 4 and the plastic pipe body 5, thereby assisting the steel pipe body 4 and the plastic pipe body 5 to position, preventing the steel pipe body 4 or the plastic pipe body 5 from displacing, when the steel pipe body 4 and the plastic pipe body 5 need to be disassembled, people move the upper shell 77 to be separated from the steel pipe body 4 and the plastic pipe body 5, the upper shell 77 drives the third bracket 101 to move upwards, the third bracket 101 drives the slide bar 102 to move upwards, the slide bar 102 drives the moving block 103 to move upwards, the moving block 103 drives the pressing plate 105 to move upwards, the pressing plate 105 drives the top block 106 to move upwards until the top block 106 moves to be separated from the steel pipe body 4 or the plastic pipe body 5, under the reset action of the buffer spring 104, the moving block 103 drives the pressing plate 105 to move downwards, the pressing plate 105 drives the top block 106 to move downwards along the guide groove 107 to reset, and finally, the positioning of the auxiliary steel pipe body 4 and the plastic pipe body 5 can be realized, preventing the displacement of the steel pipe body 4 or the plastic pipe body 5.

The embodiments of the present application and the features of the embodiments may be combined without conflict, and the present application is not limited to the specific embodiments described above, which are merely illustrative, not restrictive, and many forms may be made by those of ordinary skill in the art, without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims (7)

1. A connection structure of a steel pipe and a plastic pipe, comprising:

a bottom plate (1);

the base (2) is provided with two bases which are respectively arranged at two sides of the bottom plate (1);

the sliding groove (3) is centrally arranged on the base (2);

the steel pipe body (4) is arranged on the sliding groove (3) at one side in a sliding manner and moves to one side of the bottom plate (1) along the sliding groove (3);

the plastic pipe body (5) is arranged on the sliding groove (3) at the other side in a sliding manner, and moves to the other side of the bottom plate (1) along the sliding groove (3), and the end surfaces of the steel pipe body (4) and the plastic pipe body (5) are in contact with each other;

the fixing assembly (6) is arranged on the bottom plate (1) and is used for fixedly connecting the steel pipe body (4) and the plastic pipe body (5) into a whole;

the positioning assemblies (7) are arranged on two sides of the bottom plate (1) and are used for positioning the steel pipe body (4) and the plastic pipe body (5);

wherein the positioning assembly (7) comprises:

the lower shells (71) are arranged on two sides of the bottom plate (1), the steel pipe body (4) is positioned in the lower shell (71) on one side, and the plastic pipe body (5) is positioned in the lower shell (71) on the other side;

a plurality of first brackets (72) which are respectively arranged on the front side and the rear side of the lower shell (71);

the second brackets (73) are respectively arranged at two sides of the front side of the bottom plate (1);

a guide rod (74) provided on the second bracket (73);

a slider (75) slidably provided on the guide rod (74);

an elastic member (76) provided between the slider (75) and the second bracket (73), the elastic member (76) providing an elastic force to move downward to the slider (75);

and an upper shell (77) which is arranged on the sliding block (75) and covers the lower shell (71), the plastic pipe body (5) and the steel pipe body (4).

2. A connection structure of steel pipes and plastic pipes according to claim 1, characterized in that the elastic element (76) is a return spring.

3. A connection structure of steel pipes and plastic pipes according to claim 1, characterized in that the inner diameter of the upper housing (77) is the same as the inner diameter of the lower housing (71) and is covered to form a fixing groove (8).

4. A connection structure of steel pipes and plastic pipes according to claim 1, characterized in that the fixing assembly (6) comprises:

a first fixing sleeve (61) arranged at one end of the steel pipe body (4) adjacent to the plastic pipe body (5);

a second fixing sleeve (62) arranged at one end of the plastic pipe body (5) adjacent to the steel pipe body (4);

a first flange (63) provided on the first fixing sleeve (61);

a second flange (64) disposed on the second fixing sleeve (62) and adjacent to the first flange (63);

a flange hole (65) which is formed in the first flange (63) and the second flange (64) along the circumferential direction;

and bolts (66) penetrate through the flange holes (65) on the same side and are in threaded connection with the flange holes (65).

5. A connection structure of steel pipes and plastic pipes according to claim 4, characterized in that a rubber gasket (9) is arranged between the first flange (63) and the second flange (64), and the rubber gasket (9) is arranged between the outer diameters of the connection ends of the steel pipe body (4) and the plastic pipe body (5).

6. The connection structure of steel pipes and plastic pipes according to claim 5, wherein the rubber gasket (9) is provided with positioning holes (91) along the circumferential direction, the number of the positioning holes (91) is consistent with and corresponds to the number of the flange holes (65), and the bolts (66) penetrate through the flange holes (65) and then penetrate through the positioning holes (91).

7. A connection structure of steel pipes and plastic pipes according to claim 1, characterized by further comprising an auxiliary assembly (10) for auxiliary fixing of the steel pipe body (4) and the plastic pipe body (5);

wherein the auxiliary assembly (10) comprises:

a third bracket (101) provided on the upper case (77);

the sliding rod (102) is arranged on the third bracket (101) in a sliding manner;

a moving block (103) arranged on the sliding rod (102);

a buffer spring (104) provided between the moving block (103) and the third bracket (101);

a pressing plate (105) provided on the moving block (103);

the jacking blocks (106) are uniformly arranged at the bottom of the pressing plate (105) at intervals;

guide grooves (107) are formed in the upper shell (77), the number of the guide grooves (107) is consistent with the number of the jacking blocks (106) and corresponds to the number of the jacking blocks (106) one by one, and the jacking blocks (106) penetrate through the guide grooves (107) and are in contact with the steel pipe body (4) and the plastic pipe body (5).

Images