CN112856067A - Drainage pipeline connecting device - Google Patents

Abstract

A drainage pipeline connecting device relates to the technical field of pipeline connection. The drainage pipeline connecting device comprises two connecting pipelines, a connecting ring and two clamping lantern rings, wherein the two connecting pipelines are respectively inserted into the two connecting ports of the connecting ring, and the two clamping lantern rings are respectively sleeved on the outer wall of the connecting ring and are in one-to-one correspondence with the two connecting pipelines and used for respectively radially fixing the two connecting pipelines in the connecting ring; two groups of through holes are formed in the outer wall of the connecting ring, a limiting block is connected in each group of through holes in a sliding mode, and a limiting groove matched with the limiting block is formed in the outer wall of each connecting pipeline; the clamping sleeve ring is driven to radially tighten, the clamping sleeve ring can act on the limiting block, and the limiting block is driven to slide so that one end of the limiting block is inserted into the limiting groove. The drainage pipeline connecting device can effectively improve the connection reliability and the sealing property between two pipelines.

Description

Drainage pipeline connecting device

Technical Field

The invention relates to the technical field of pipeline connection, in particular to a drainage pipeline connecting device.

Background

The municipal water supply and drainage pipeline refers to rainwater and sewage pipelines under municipal roads, is generally called municipal drainage pipeline in engineering, and has been increasingly applied along with the vigorous development of drainage engineering.

Most of the existing drainage pipes are buried underground, and the adjacent drainage pipes are usually connected through a flange plate. However, the pipeline is buried underground for a long time, so that the situation that the flange and the pipeline are dislocated easily occurs under the action of long-term pressure and impact force, and therefore the tightness of the pipeline connected through the flange is poor, water seepage inside the pipeline is easily caused, sewage seepage can cause small-range deposition, the quality of soil around the drainage pipeline is affected, and the use of the pipeline is affected after long-term use.

Disclosure of Invention

The invention aims to provide a drainage pipeline connecting device which can effectively improve the connection reliability between two connecting pipelines and further improve the connection tightness of the two connecting pipelines.

The embodiment of the invention is realized by the following steps:

in one aspect of the invention, a drainage pipeline connecting device is provided, which comprises two connecting pipelines, a connecting ring and two clamping lantern rings, wherein the two connecting pipelines are respectively inserted into the two connecting ports of the connecting ring; two groups of through holes are formed in the outer wall of the connecting ring, a limiting block is connected in each group of through holes in a sliding mode, and a limiting groove matched with the limiting block is formed in the outer wall of each connecting pipeline; the clamping sleeve ring is driven to radially tighten, the clamping sleeve ring can act on the limiting block, and the limiting block is driven to slide so that one end of the limiting block is inserted into the limiting groove. The drainage pipeline connecting device can effectively improve the connection reliability and the sealing property between two pipelines.

Optionally, the inner wall of the clamping sleeve ring is provided with an extrusion block, and the extrusion block and the limiting block are correspondingly arranged.

Optionally, the number of the extrusion blocks is multiple, and the multiple extrusion blocks are uniformly distributed on the inner wall of the clamping sleeve ring; the limiting blocks also comprise a plurality of limiting blocks, and the limiting blocks correspond to the plurality of extruding blocks one to one.

Optionally, the clamping ring comprises a clamping ring and a fastening screw, the clamping ring is sleeved on the outer wall of the connecting ring, two ends of the clamping ring are respectively provided with a threaded plate extending outwards, and the fastening screw fastens the clamping ring by fastening the two threaded plates.

Optionally, one end of one threaded plate close to the hooping ring is convexly provided with a clamping plate, one end of the other threaded plate close to the hooping ring is concavely provided with a clamping groove clamped with the clamping plate, and when the hooping ring is in a hooping state, the clamping plate and the clamping groove are clamped.

Optionally, a containing groove communicated with the through hole is further formed in the connecting ring, the containing groove and the through hole are coaxially arranged, and the diameter of the containing groove is larger than that of the through hole; the accommodating groove is internally provided with an annular pressing plate and an elastic piece, the annular pressing plate is annularly arranged on the periphery of the limiting block, one end of the elastic piece is abutted against the annular pressing plate, and the other end of the elastic piece is abutted against the bottom of the accommodating groove.

Optionally, the drainage pipeline connecting device further comprises a fixing rod, one end of the fixing rod is connected with the annular pressing plate, the other end of the fixing rod is abutted to the bottom of the accommodating groove, and the elastic piece is sleeved on the fixing rod.

Optionally, the inner wall of the connection ring is connected with an annular inner plate, two opposite sides of the annular inner plate are respectively provided with an annular protrusion in a protruding manner, the end face of the connection pipeline close to the connection ring is provided with an annular groove, and the annular groove is matched with the annular protrusion.

Optionally, a positioning block is arranged on the annular protrusion, a positioning groove is concavely arranged at the bottom of the annular groove, and the positioning block is matched with the positioning groove.

Optionally, the positioning blocks include a plurality of positioning blocks, the positioning blocks are uniformly distributed on the annular protrusion, and the positioning grooves also include a plurality of positioning grooves, which correspond to the positioning blocks one to one.

The beneficial effects of the invention include:

the embodiment provides a drainage pipeline connecting device, which comprises two connecting pipelines, a connecting ring and two clamping lantern rings, wherein the two connecting pipelines are respectively inserted into the two connecting ports of the connecting ring; the outer wall of the connecting ring is provided with a through hole, a limiting block is connected in the through hole in a sliding manner, and the outer wall of the connecting pipeline is provided with a limiting groove matched with the limiting block; the clamping sleeve ring is driven to radially tighten, the clamping sleeve ring can act on the limiting block, and the limiting block is driven to slide so that one end of the limiting block is inserted into the limiting groove. In the using process, the connecting ports of the connecting pipelines at the two sides can be correspondingly inserted into the two connecting ports of the connecting ring one by one, and the two clamping lantern rings are sleeved on the periphery of the connecting ring; then radially tighten up two and press from both sides the lantern ring, like this, press from both sides the lantern ring alright with the stopper rather than corresponding, thereby drive the stopper and slide towards the connecting tube in the through-hole, and then make the stopper be close to the one end of connecting tube and insert the spacing inslot of locating the connecting tube, in order to reach the purpose of connecting the connecting tube with the go-between through the stopper, therefore, can effectively improve the connection stability between connecting tube and the go-between, thereby avoid because the connecting tube is in the unreliable problem of the connection leakproofness that brings that the pressurized state leads to for a long time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural view of a drain pipe connecting device according to an embodiment of the present invention;

FIG. 2 is a schematic view of the connection relationship between the connection ring and the clamping collar provided by the embodiment of the present invention;

FIG. 3 is a schematic diagram of a clamp collar according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a limiting block installed in a through hole according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a connection pipe according to an embodiment of the present invention.

Icon: 10-connecting a pipe; 11-a limiting groove; 12-an annular groove; 13-positioning grooves; 20-a connecting ring; 21-a through hole; 22-a receiving groove; 23-an annular inner plate; 231-an annular projection; 232-positioning blocks; 24-a containing groove; 30-a clamping collar; 31-an extrusion block; 32-a cinch ring; 33-a fastening screw; 34-a thread plate; 35-a clamping plate; 36-a card slot; 40-a limiting block; 50-annular pressing plate; 60-an elastic member; 70-fixing the rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 and 2, the present embodiment provides a drainage pipeline connecting device, which includes two connecting pipelines 10, a connecting ring 20 and two clamping rings 30, wherein the two connecting pipelines 10 are respectively inserted into the two connecting ports of the connecting ring 20, the two clamping rings 30 are respectively sleeved on the outer wall of the connecting ring 20 and are in one-to-one correspondence with the two connecting pipelines 10, and are used for respectively radially fixing the two connecting pipelines 10 in the connecting ring 20; two groups of through holes 21 are formed in the outer wall of the connecting ring 20, a limiting block 40 is connected in each group of through holes 21 in a sliding mode, and a limiting groove 11 matched with the limiting block 40 is formed in the outer wall of each connecting pipeline 10; the clamping collar 30 is driven to be radially tightened, the clamping collar 30 can act on the limiting block 40, and the limiting block 40 is driven to slide so that one end of the limiting block is inserted into the limiting groove 11.

The connecting pipes 10 include two connecting pipes 10, and the two connecting pipes 10 are respectively inserted into two connecting ports of the connecting ring 20. It should be noted that the connection ring 20 is an annular member having a certain width for connecting the two connection pipes 10, and as shown in fig. 1 and 2, the connection ring 20 has two connection ports communicating with each other, so that one of the connection pipes 10 is connected to one of the connection ports of the connection ring 20 and the other connection pipe 10 is connected to the other connection port of the connection ring 20, thereby enabling the two connection pipes 10 to communicate with each other through the connection ring 20.

The two clamping rings 30 are also arranged, and the two clamping rings 30 are respectively sleeved on the outer peripheral wall of the connecting ring 20; and one of the clamping collars 30 is sleeved on a side close to one of the connecting pipes 10, and the other clamping collar 30 is sleeved on a side close to the other connecting pipe 10, so that each clamping collar 30 can be used to fix one connecting pipe 10 into the connecting ring 20.

Optionally, in this embodiment, the connecting ring 20 may further include two receiving grooves 24 formed on the outer periphery thereof, the two receiving grooves 24 are respectively formed on the outer periphery of the connecting ring 20, and the two receiving grooves 24 are respectively formed on the opposite ends of the connecting ring 20, so that the two clamping rings 30 can be conveniently sleeved on the connecting ring 20.

Illustratively, in this embodiment, two sets of through holes 21 are formed on the outer wall of the connection ring 20, and a stop block 40 is slidably connected in each set of through holes 21, that is, the stop block 40 can slide up and down in the through holes 21. It should be noted that one set of through holes 21 is provided on the side of the connection ring 20 close to one of the connection pipes 10, and the other set of through holes 21 is provided on the side of the connection ring 20 close to the other connection pipe 10.

Optionally, each group of through holes 21 may include a plurality of sub through holes 21, and the plurality of sub through holes 21 are uniformly distributed along the radial direction of the connection ring 20, wherein when each group of through holes 21 includes a plurality of sub through holes 21, correspondingly, each sub through hole 21 may be correspondingly provided with a limiting block 40 therein, so that the connection stability between the connection ring 20 and the connection pipe 10 may be further improved. It should be understood that when each set of through holes 21 includes a plurality of sub through holes 21, in order to enable the radial tightening of the clamping collar 30 to act on the stop block 40, the position of the clamping collar 30 annularly disposed on the connection ring 20 should correspond to the position of the distribution of the plurality of sub through holes 21.

And the outer peripheral wall of the connecting pipe 10 is provided with a limiting groove 11, and the limiting groove 11 is adapted to the limiting block 40 (wherein, the number of the limiting grooves 11 should be the same as and one-to-one corresponding to the number of the limiting blocks 40). Like this, when the drive presss from both sides tight lantern ring 30 and radially tightens up, press from both sides tight lantern ring 30 and can act on the stopper 40 in the through-hole 21 of go-between 20, and then drive stopper 40 and slide towards connecting tube 10, thereby make the stopper 40 be close to the one end of connecting tube 10 and insert the spacing groove 11 of locating connecting tube 10, so, connecting tube 10 alright be connected with go-between 20 through stopper 40, thereby can effectively avoid connecting tube 10 to break away from go-between 20 from the axial of go-between 20, and then make this application can improve the connection reliability between two connecting tube 10, so also can improve connecting tube 10's sealing performance to a certain extent.

Of course, in order to further improve the connection sealing performance of the present drain pipe connection device, in the present embodiment, a sealing ring may be further provided at the connection between each connection pipe 10 and the connection ring 20. The periphery of the limiting block 40 can be sleeved with a sealing ring to improve the connection sealing performance of the limiting block 40 in the through hole 21. Of course, the sealing material is not limited to the above, and those skilled in the art can choose to dispose the sealing material at the appropriate connection according to actual needs.

In summary, the present embodiment provides a drainage pipeline connecting device, which includes two connecting pipelines 10, a connecting ring 20 and two clamping collars 30, wherein the two connecting pipelines 10 are respectively inserted into the two connecting ports of the connecting ring 20, the two clamping collars 30 are respectively sleeved on the outer wall of the connecting ring 20 and are in one-to-one correspondence with the two connecting pipelines 10, and are used for respectively radially fixing the two connecting pipelines 10 in the connecting ring 20; the outer wall of the connecting ring 20 is provided with a through hole 21, a limiting block 40 is connected in the through hole 21 in a sliding manner, and the outer wall of the connecting pipeline 10 is provided with a limiting groove 11 matched with the limiting block 40; the clamping collar 30 is driven to be radially tightened, the clamping collar 30 can act on the limiting block 40, and the limiting block 40 is driven to slide so that one end of the limiting block is inserted into the limiting groove 11. In this way, in the using process, the connection ports of the connection pipes 10 at the two sides can be inserted into the two connection ports of the connection ring 20 in a one-to-one correspondence manner, and the two clamping lantern rings 30 are sleeved on the periphery of the connection ring 20; then two clamping sleeve rings 30 are radially tightened, so that the clamping sleeve rings 30 can extrude the limiting blocks 40 corresponding to the clamping sleeve rings, the limiting blocks 40 are driven to slide towards the connecting pipeline 10 in the through holes 21, one ends, close to the connecting pipeline 10, of the limiting blocks 40 are inserted into the limiting grooves 11 of the connecting pipeline 10, and the purpose of connecting the connecting pipeline 10 and the connecting ring 20 through the limiting blocks 40 is achieved.

Referring to fig. 3, optionally, a pressing block 31 is disposed on an inner wall of the clamping collar 30, and the pressing block 31 is disposed corresponding to the limiting block 40. In this way, the clamping collar 30 is radially tightened, and the clamping collar 30 can press the limiting block 40 in the through hole 21 of the connecting ring 20 through the pressing block 31, so as to effectively drive the movement of the limiting block 40. The shape of the pressing block 31 is not limited in this application, as long as the pressing block can play a role of driving the stopper 40 to move when the clamping collar 30 is radially tightened.

Optionally, the extrusion block 31 includes a plurality of extrusion blocks 31 uniformly distributed on the inner wall of the clamping collar 30; the limiting block 40 is also provided with a plurality of limiting blocks, and corresponds to the plurality of squeezing blocks 31 one by one. In this way, the plurality of pressing blocks 31 can act on the plurality of limiting blocks 40 in a one-to-one correspondence manner, so that the connection reliability of the connection pipe 10 and the connection ring 20 is better. It should be understood that, as shown in fig. 1, two connecting pipes 10 are respectively connected to the left and right sides of the connecting ring 20, and the two connecting pipes 10 are respectively fixed to the connecting ring 20 in the same manner, that is, the clamping collar 30 located at the left side of the connecting ring 20 drives the limiting block 40 located in the group of through holes 21 at the left side of the connecting ring 20 to move towards the connecting pipe 10 located at the left side of the connecting ring 20, so that one end of the limiting block 40 is inserted into the limiting groove 11 of the connecting pipe 10, thereby realizing the connection between the connecting pipe 10 at the left side and the connecting ring 20; the connection between the connecting tube 10 and the connecting ring 20 can be achieved by the same method, which is not described in detail herein.

Referring to fig. 3, optionally, the clamping collar 30 includes a clamping ring 32 and a fastening screw 33, the clamping ring 32 is sleeved on the outer wall of the connecting ring 20, two threaded plates 34 are respectively extended from two ends of the clamping ring 32, and the fastening screw 33 fastens the clamping ring 32 by fastening the two threaded plates 34.

The threaded plates 34 are respectively provided with threaded holes, and the fastening screws 33 are inserted into the two threaded holes, as shown in fig. 3. Like this, when using, locate the periphery of go-between 20 with the hoop ring 32 cover, through screwing up fastening screw 33 alright be close to each other with the both ends of drive hoop ring 32, and then make hoop ring 32 radially tighten up, thereby make the stopper 40 that the extrusion piece 31 in the hoop ring 32 acted on in the through-hole 21 of go-between 20, and then drive stopper 40 and remove towards connecting tube 10, thereby make the stopper 40 be close to the one end of connecting tube 10 and insert the spacing groove 11 of locating connecting tube 10, so alright be connected with the go-between 20 through stopper 40 with realizing connecting tube 10.

In this embodiment, optionally, one end of one of the screw plates 34 close to the tightening ring 32 is provided with a protruding snap-in plate 35, and one end of the other screw plate 34 close to the tightening ring 32 is provided with a recessed snap-in groove 36 for engaging with the snap-in plate 35, and when the tightening ring 32 is in a tightened state, the snap-in plate 35 is engaged with the snap-in groove 36. In this way, it is convenient to butt the two ends of the tightening ring 32 against each other, and excessive tightening of the tightening ring 32 is avoided. The arrangement positions of the clamping plates 35 and the clamping grooves 36 can be interchanged, and the shapes of the clamping grooves 36 of the clamping plates 35 are matched. In addition, it should be noted that the sizes of the clamping plate 35 and the clamping groove 36 are not limited in this application, and can be set by a person skilled in the art according to needs.

Referring to fig. 4 again, optionally, a receiving groove 22 communicated with the through hole 21 is further disposed in the connecting ring 20, the receiving groove 22 and the through hole 21 are coaxially disposed, and a diameter of the receiving groove 22 is greater than a diameter of the through hole 21; an annular pressing plate 50 and an elastic piece 60 are arranged in the accommodating groove 22, the annular pressing plate 50 is annularly arranged on the periphery of the limiting block 40, one end of the elastic piece 60 is abutted against the annular pressing plate 50, and the other end of the elastic piece 60 is abutted against the bottom of the accommodating groove 22.

It should be noted that, when each group of through holes 21 includes a plurality of sub-through holes 21, each sub-through hole 21 is correspondingly provided with an accommodating groove 22 communicated therewith, and since those skilled in the art can easily obtain the situation through the description of the embodiment, the detailed description of the situation is omitted in this application.

The accommodating groove 22 is located at the middle position of the through hole 21, and the accommodating groove 22 is disposed to facilitate accommodating the annular pressing plate 50 and the elastic element 60.

In addition, in this embodiment, the annular pressing plate 50 is sleeved on the outer periphery of the limiting block 40 and connected to the outer wall of the limiting block 40, so that when the pressing block 31 acts on the limiting block 40, the limiting block 40 compresses the elastic member 60 through the annular pressing plate 50 and moves toward the connecting pipe 10, and the fixing of the connecting ring 20 and the connecting pipe 10 can be achieved. Simultaneously, when connecting tube 10 and go-between 20 are dismantled to needs, can get rid of earlier and press from both sides tight lantern ring 30, like this, stopper 40 loses the effort, and elastic component 60 releases the ability, alright reset fast with drive stopper 40, and then make connecting tube 10 conveniently take out in the go-between 20.

In order to improve the operational reliability of the elastic member 60, optionally, the drain pipe connecting device further includes a fixing rod 70, one end of the fixing rod 70 is connected to the annular pressing plate 50, the other end of the fixing rod is abutted against the bottom of the receiving groove 22, and the elastic member 60 is sleeved on the fixing rod 70. Therefore, in the using process of the drainage pipeline connecting device, the elastic piece 60 can be further ensured to play a role all the time, and the elastic piece 60 can be effectively prevented from losing efficacy due to translocation of the elastic piece 60. In this embodiment, the elastic member 60 is a compression spring.

In this embodiment, the size of the annular pressing plate 50 is larger than the port diameter of the through hole 21, so that the stopper 40 can be prevented from coming off the through hole 21. The annular pressing plate 50, the elastic member 60 and the fixing rod 70 may be accommodated in the accommodating groove 22 in advance when the connection ring 20 is manufactured. Specifically, the installation manner of the annular pressing plate 50, the elastic member 60, and the fixing rod 70 is not limited in the present application as long as the structure as shown in fig. 4 is finally formed.

Referring to fig. 5 again, in the present embodiment, optionally, the inner wall of the connection ring 20 is connected to an annular inner plate 23, two opposite sides of the annular inner plate 23 are respectively provided with an annular protrusion 231 in a protruding manner, an end surface of the connection pipe 10 close to the connection ring 20 is provided with an annular groove 12, and the annular groove 12 is matched with the annular protrusion 231.

In this way, the end surface of the connecting pipeline 10 can be attached to the inner annular plate 23, and the annular groove 12 on the connecting pipeline 10 can be clamped on the annular protrusion 231 on the inner annular plate 23, so that the axial positioning reliability of the connecting pipeline 10 and the inner annular plate 23 is improved.

It should be noted that, in this embodiment, the annular protrusions 231 are all disposed at the middle position of the inner annular plate 23 in an encircling manner, that is, a certain gap is further formed between the inner side and the outer side of the annular protrusions 231, so that the end surface of the connecting pipe 10 can be conveniently attached to the inner annular plate 23.

Optionally, as shown in fig. 5, a positioning block 232 is disposed on the annular protrusion 231, a positioning groove 13 is concavely disposed on the bottom of the annular groove 12, and the positioning block 232 is fitted with the positioning groove 13. In this way, the connection reliability of the connecting pipe 10 and the inner annular plate 23 can be further improved.

For example, in the present embodiment, the positioning block 232 includes a plurality of positioning blocks 232, and the plurality of positioning blocks 232 are uniformly distributed on the annular protrusion 231, and the positioning slot 13 also includes a plurality of positioning slots, and the positioning slots correspond to the positioning blocks 232 one to one.

Therefore, when the drainage pipeline connecting device provided by the embodiment is used, the connecting ports of the two connecting pipelines 10 can be inserted into the connecting ring 20 in alignment, so that the two connecting pipelines 10 are respectively attached to the two opposite sides of the inner annular plate 23, the annular protrusions 231 on the two sides of the inner annular plate 23 are clamped into the annular grooves 12 of the connecting pipelines 10 on the two sides, and the positioning blocks 232 are inserted into the positioning grooves 13 in a matching manner, thereby achieving the purpose of positioning and fixing the connecting pipelines 10 on the two sides in the connecting ring 20, and effectively ensuring the connection tightness of the connecting pipelines 10 on the two sides.

When the positioning blocks 232 are clamped into the positioning grooves 13, the limiting blocks 40 are aligned with the limiting grooves 11, and the fastening screws 33 on both sides are screwed to make the threaded plates 34 on both ends of the clamping ring 32 approach each other, so that the clamping plates 35 are inserted into the clamping grooves 36 in a matched manner. Meanwhile, the clamping collar 30 is stressed to contract radially to drive the plurality of squeezing blocks 31 to squeeze the limiting blocks 40 through the upper end openings of the through holes 21, the plurality of limiting blocks 40 are squeezed to be stressed to compress the plurality of pressing springs through the annular pressing plate 50 and move towards the limiting grooves 11, and then the purpose that one ends of the plurality of limiting blocks 40 are matched and clamped into the plurality of limiting grooves 11 is achieved, so that the reliable connection of the connecting pipeline 10 and the connecting ring 20 is achieved.

The above description is only an alternative embodiment of the present invention and is not intended to limit the present invention, and various modifications and variations of the present invention may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.

Claims (10)

1. A drainage pipeline connecting device is characterized by comprising two connecting pipelines, a connecting ring and two clamping lantern rings, wherein the two connecting pipelines are respectively inserted into the two connecting ports of the connecting ring, and the two clamping lantern rings are respectively sleeved on the outer wall of the connecting ring and correspond to the two connecting pipelines one by one and are used for respectively radially fixing the two connecting pipelines in the connecting ring;

two groups of through holes are formed in the outer wall of the connecting ring, a limiting block is connected in each group of through holes in a sliding mode, and a limiting groove matched with the limiting block is formed in the outer wall of each connecting pipeline; the clamping sleeve ring is driven to be radially tightened, the clamping sleeve ring can act on the limiting block, and the limiting block is driven to slide so that one end of the limiting block is inserted into the limiting groove.

2. The drainage pipeline connecting device according to claim 1, wherein the inner wall of the clamping collar is provided with a squeezing block, and the squeezing block is arranged corresponding to the limiting block.

3. The drainpipe connecting device according to claim 2, wherein the plurality of squeezing blocks are uniformly distributed on the inner wall of the clamping collar; the limiting blocks also comprise a plurality of limiting blocks, and the limiting blocks correspond to the plurality of extruding blocks one to one.

4. The drainpipe connecting device of claim 1, wherein the clamping ring includes a clamping ring and a fastening screw, the clamping ring is sleeved on the outer wall of the connecting ring, and two ends of the clamping ring are respectively provided with a threaded plate extending outwards, and the fastening screw fastens the clamping ring by fastening the two threaded plates.

5. The drainage pipeline connecting device of claim 4, wherein a clamping plate is convexly arranged at one end of one of the threaded plates close to the clamping ring, a clamping groove clamped with the clamping plate is concavely arranged at one end of the other threaded plate close to the clamping ring, and the clamping plate and the clamping groove are clamped when the clamping ring is in the clamping state.

6. The connecting device for a drainage pipeline according to claim 1, wherein a containing groove communicated with the through hole is further formed in the connecting ring, the containing groove and the through hole are coaxially arranged, and the diameter of the containing groove is larger than that of the through hole; the elastic piece is arranged at the bottom of the accommodating groove and is connected with the bottom of the accommodating groove in a butt-joint mode.

7. The connecting device for a drainage pipeline according to claim 6, further comprising a fixing rod, wherein one end of the fixing rod is connected with the annular pressing plate, the other end of the fixing rod is abutted against the bottom of the accommodating groove, and the elastic member is sleeved on the fixing rod.

8. The drainage pipeline connecting device as claimed in claim 1, wherein the inner wall of the connecting ring is connected with an annular inner plate, two opposite sides of the annular inner plate are respectively provided with an annular protrusion in a protruding manner, and the end surface of the connecting pipeline close to the connecting ring is provided with an annular groove which is matched with the annular protrusion.

9. The drainage pipeline connecting device of claim 8, wherein the annular protrusion is provided with a positioning block, the bottom of the annular groove is concavely provided with a positioning groove, and the positioning block is matched with the positioning groove.

10. The drainage pipeline connecting device of claim 9, wherein the positioning blocks are uniformly distributed on the annular protrusion, and the positioning grooves are corresponding to the positioning blocks one to one.

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