CN210421332U - But quick replacement's pre-buried drain pipe structure - Google Patents
But quick replacement's pre-buried drain pipe structure Download PDFInfo
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- CN210421332U CN210421332U CN201920629285.3U CN201920629285U CN210421332U CN 210421332 U CN210421332 U CN 210421332U CN 201920629285 U CN201920629285 U CN 201920629285U CN 210421332 U CN210421332 U CN 210421332U
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Abstract
The utility model discloses a but quick replacement's pre-buried drain pipe structure belongs to civil engineering plumbing technical field, wherein through setting up outer tube and interior sleeve pipe that can coaxial matching, through with the pre-buried setting of outer tube between sand setting pit and wastewater disposal basin, and interior sleeve pipe can correspond nested, take and put at the outer tube, correspond the intercommunication that corresponds of realizing sand setting pit and wastewater disposal basin by interior sleeve pipe, realize the discharge of waste water, in case interior sleeve pipe appears ageing, the jam, the condition such as damaged, can correspond and take out interior sleeve pipe fast and change, thereby effectively avoid the excavation of a large amount of earthwork in the drain pipe replacement process. The utility model discloses a pre-buried drain pipe structure, its simple structure sets up portably, can realize the setting and the change of pre-buried drain pipe between desilting pit and the wastewater disposal basin fast, has simplified the step that pre-buried drain pipe overhauld, changed, has shortened the setting and the change cycle of pre-buried drain pipe, has reduced pre-buried drain pipe's application cost, has better application prospect and spreading value.
Description
Technical Field
The utility model belongs to the technical field of civil engineering plumbing, concretely relates to but quick replacement's pre-buried drain pipe structure.
Background
In civil engineering and construction, a certain number of drainage pipelines are often embedded in the main structure of the engineering for water supply and drainage. Taking railway traffic engineering as an example, smooth drainage in a rail running area is an important condition for ensuring normal operation of trains and reducing rail diseases, and especially, underground lines and tunnel lines are important for ensuring smooth drainage in the rail running area.
In the prior art, the drainage mode of the track area commonly adopted by the underground line or tunnel line of the railway traffic engineering is as follows: longitudinal drainage ditches are respectively arranged on two sides of the track bed of the track, and the water seepage of the tunnel in the track area is guided to the lowest point of the local section of the line and then drained to an adjacent wastewater pond, as shown in figure 2. In general, a sand basin is arranged between the wastewater pool and the drainage ditch of the track bed, and the wastewater pool is communicated with the sand basin through a correspondingly arranged pre-buried drainage pipe.
At present, pre-buried drain pipe buries underground when construction tunnel or station structure bottom plate to accomplish the construction that the drain pipe top corresponds the structure after burying underground, pre-buried drain pipe among the prior art is fixed to be set up in tunnel structure or underground structure promptly, the drain pipe structure of this kind of form can satisfy the needs of being connected of sand setting pit and wastewater disposal basin to a certain extent, but it also has great defect, in case bury underground the completion promptly, just can not change, or it is extremely troublesome to change the construction. Simultaneously, in the long-term use of drain pipe structure, the ageing, the jam condition of drain pipe structure very easily appear, and then lead to the ponding of underground line or tunnel line, the infiltration, influence track structure's normal operation, and drain pipe structure's change construction is loaded down with trivial details, and the change in-process also can produce great influence to track line's normal use, causes the increase of underground line or tunnel line application cost.
SUMMERY OF THE UTILITY MODEL
One or more in defect or improvement demand to prior art more, the utility model provides a but quick replacement's pre-buried drain pipe structure, wherein through setting up outer tube and the interior sleeve pipe that can coaxial matching, through with the pre-buried setting of outer tube between sand basin and wastewater disposal basin, and interior sleeve pipe can correspond nestedly, take and put at the outer tube, correspond the intercommunication that corresponds that realizes sand basin and wastewater disposal basin by interior sleeve pipe, realize the discharge of waste water, in case interior sleeve pipe appears ageing, block up, the condition such as damage, can correspond and take out fast and change interior sleeve pipe, can effectively avoid the excavation of a large amount of earthwork in the drain pipe replacement process, realize the quick replacement of drain pipe structure, reduce the setting cost and the maintenance cost of pre-buried drain pipe structure.
In order to achieve the purpose, the utility model provides a quick replaceable embedded drain pipe structure, which is characterized in that the structure comprises an outer sleeve, an inner sleeve which can be coaxially embedded in the outer sleeve, and a sealing cover which is arranged corresponding to the inner sleeve; wherein the content of the first and second substances,
the outer sleeve comprises a pipe body in a circular tubular structure, a first ring platform which is a ring platform structure with certain length and thickness is arranged on the inner peripheral wall surface of one end of the pipe body along the annular direction, and a second ring platform with the length smaller than that of the first ring platform is arranged on the inner peripheral wall surface of one side, close to the end part of the pipe body, of the first ring platform, so that a two-stage annular step structure is formed at one end of the pipe body; and is
The inner sleeve comprises a starting sleeve, a middle sleeve and a tail sleeve, wherein the pipe diameters of the starting sleeve, the middle sleeve and the tail sleeve are sequentially reduced; the outer diameter of the starting-end sleeve is smaller than the inner diameter of the outer sleeve, the starting-end sleeve can be coaxially nested in the outer sleeve and is spaced from the inner peripheral wall surface of the outer sleeve by a certain distance, and a clamping ring structure with certain thickness and length, namely a first inner clamping ring, is arranged on the inner peripheral wall surface at one end of the outer sleeve along the annular direction; the outer diameter of the middle sleeve is not larger than the inner diameter of the first inner clamping ring, a first outer clamping ring is arranged on the outer peripheral wall surface of one end of the middle sleeve along the annular direction, the outer diameter of the first outer clamping ring is not smaller than the inner diameter of the first inner clamping ring, and a second inner clamping ring is arranged on the inner peripheral wall surface of the other end of the middle sleeve along the annular direction; a second outer snap ring is arranged on the peripheral wall surface of one end of the tail end sleeve, the outer diameter of the second outer snap ring is not smaller than the inner diameter of the second inner snap ring, the outer diameter of the tail end sleeve is not larger than the inner diameter of the second inner snap ring and the inner diameter of the first ring platform, and the outer diameter of the tail end sleeve is larger than the inner diameter of the second ring platform, so that one end of the tail end sleeve can coaxially penetrate through the second inner snap ring and is placed on the first ring platform through the end part; and
a sealing cover is arranged corresponding to the starting-end sleeve, the sealing cover comprises a cover body which is larger than the inner diameter of the outer sleeve in outer diameter and is in a plate-shaped structure, a through hole penetrating through two end faces is formed in the middle of the cover body along the axial direction, a limiting snap ring which is in a circular ring-shaped structure is coaxially arranged on one side end face of the cover body, the inner diameter of the limiting snap ring is equal to the outer diameter of the starting-end sleeve, the outer diameter of the limiting snap ring is not larger than the inner diameter of the outer sleeve, and one end, away from the first inner snap ring, of the starting-end sleeve can be coaxially; then the top sleeve pipe the middle part sleeve pipe with the end sleeve pipe can match the cover in proper order along the axial and establish, forms the interior sleeve pipe that the pipe diameter reduces in proper order along the axial, just the less one end of interior sleeve pipe diameter can correspond to take and put first ring bench, and with the second ring bench is spacing to its axial, and the great one end of interior sleeve pipe diameter can correspond the embedding spacing snap ring in and fixed to form quick replacement's pre-buried drain pipe structure.
As a further improvement of the utility model, the lengths of the starting sleeve, the middle sleeve and the tail end sleeve are respectively equal.
As a further improvement of the utility model, the middle casing comprises a plurality of casing units with successively reduced pipe diameters and successively sleeved along the axial direction; one end of the sleeve unit is provided with the first outer clamping ring, and the other end of the sleeve unit is provided with the second inner clamping ring; then the sleeve unit with the largest pipe diameter can be coaxially sleeved in the starting-end sleeve, the first outer clamping ring at the end part of the sleeve unit can be abutted against the first inner clamping ring in the axial direction, the sleeve unit with the smallest pipe diameter can be correspondingly matched with the tail-end sleeve, and the second inner clamping ring at the end part of the sleeve unit can be abutted against the second outer clamping ring in the axial direction.
As a further improvement of the utility model, each the length of the sleeve pipe unit equals.
As a further improvement, the limiting snap ring is matched with the top sleeve pipe in a corresponding manner through threaded connection, namely, an internal thread is arranged on the inner peripheral wall surface of the limiting snap ring, and the top sleeve pipe deviates from an external thread is arranged on the periphery of one end of the first inner snap ring.
As a further improvement of the present invention, the thickness of the first inner snap ring is equal to the thickness of the first outer snap ring, and the thickness of the second outer snap ring is equal to the thickness of the second inner snap ring.
As a further improvement of the present invention, the first ring platform and the second ring platform are respectively parallel and level with the side wall surface the end surface of the outer sleeve.
As a further improvement of the utility model, the cover body of the sealing cover is of a circular plate-shaped structure, and the outer diameter of the cover body is larger than that of the outer sleeve.
The above-described improved technical features may be combined with each other as long as they do not conflict with each other.
Generally, through the utility model discloses above technical scheme who conceives compares with prior art, has following beneficial effect:
(1) the utility model discloses a but quick replacement's pre-buried drain pipe structure, it is through setting up the great outer tube of pipe diameter and can correspond the setting at the interior sleeve pipe of outer tube, through with the pre-buried setting of outer tube between sand basin and wastewater disposal basin, and interior sleeve pipe corresponds nested, take and put in the outer tube, correspond by interior sleeve pipe and realize the corresponding intercommunication of sand basin and wastewater disposal basin, realize the discharge of waste water, once the interior sleeve pipe appears ageing, jam, damaged circumstances such as, can correspond take out the interior sleeve pipe and change, thereby can effectively avoid the excavation of a large amount of earthwork in the drain pipe replacement process, avoided the influence to the normal operation of track line in the drain pipe replacement process, realized the quick replacement of pre-buried drain pipe structure, reduced the setting cost and the maintenance cost of pre-buried drain pipe structure;
(2) the utility model discloses a but quick replacement's pre-buried drain pipe structure, it is through setting up interior sleeve pipe to the coaxial nested and telescopic form of multistage formula, through the corresponding setting of interior snap ring and outer snap ring, can effectively realize corresponding sheathed tube tip spacing, when having realized interior sleeve pipe stable setting, still ensure the convenience when interior sleeve pipe is changed, through with other sleeve pipes except that the top sleeve pipe correspond retract to the top sleeve pipe in, can effectively shorten the length of interior sleeve pipe, thereby effectively avoided the problem that the drain pipe change degree of difficulty is big that leads to because the heavy sand pit volume is less, the change time limit for a project of interior sleeve pipe has further been shortened, construction cost when having practiced thrift the drain pipe and changing;
(3) the utility model discloses a but quick replacement's pre-buried drain pipe structure, it sets up the closing cap structure through the tip correspondence of inner tube, has effectively avoided the waste water in the sand pit to enter into between interior sleeve pipe and the outer tube to realized the stable fixed of top sleeve pipe tip, guaranteed the stability of interior sleeve pipe in the use, avoided the displacement situation that the corresponding sleeve pipe appears because of intraductal rivers impact, promoted the life of interior sleeve pipe, reduced the maintenance and the maintenance work of drain pipe structure;
(4) the utility model discloses a but quick replacement's pre-buried drain pipe structure, its simple structure sets up portably, can realize the setting and the change of pre-buried drain pipe between desilting pit and the wastewater disposal basin fast, has simplified the step that pre-buried drain pipe overhauld, changed, has shortened the setting and the change cycle of pre-buried drain pipe, has reduced pre-buried drain pipe's application cost, has better application prospect and spreading value.
Drawings
Fig. 1 is a cross-sectional view of an overall structure of a quick replaceable embedded drain structure according to an embodiment of the present invention;
fig. 2 is a schematic view of an arrangement form of a quick replaceable embedded drain pipe structure in an embodiment of the present invention;
fig. 3(a, b) are schematic structural diagrams of an outer sleeve of a pre-buried drain pipe structure capable of being replaced quickly according to an embodiment of the present invention;
fig. 4 is a schematic view of an inner sleeve structure of a pre-buried drain pipe structure capable of being replaced quickly according to an embodiment of the present invention;
fig. 5(a, b) is a schematic diagram of a structure of a sealing cover of a pre-buried drain pipe structure capable of being replaced quickly in the embodiment of the present invention;
fig. 6(a, b) are schematic diagrams of the starting end sleeve structure of the pre-buried drain pipe structure in the embodiment of the present invention;
fig. 7(a, b) are schematic diagrams of a middle sleeve structure of the pre-buried drain pipe structure in the embodiment of the present invention;
fig. 8(a, b) are schematic diagrams of the structure of the end sleeve of the pre-buried drain pipe structure in the embodiment of the present invention;
in all the figures, the same reference numerals denote the same features, in particular: 1. the outer sleeve is 101, the pipe body is 102, the first annular table is 103, and the second annular table is 103; 2. the device comprises an inner sleeve, 201, a starting end sleeve, 2011, a connecting end, 2012 and a first limiting end; 202. middle sleeve 203, end sleeve 204, inner snap ring 205, outer snap ring; 3. a sealing cover 301, a cover body 302, a limit snap ring; 4. a sand basin and a wastewater pool.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
The utility model discloses but quick replacement's pre-buried drain pipe structure is shown in figure 1 in the preferred embodiment, and is difficult to see by the figure, and it includes that outer tube 1, interior sleeve pipe 2 and closing cap 3 correspond to constitute, and wherein, outer tube 1 and interior sleeve pipe 2 are the tubular structure respectively, and the internal diameter of outer tube 1 is greater than the maximum value of interior sleeve pipe 2 external diameter for interior sleeve pipe 2 can correspond the cover and establish in outer tube 1.
Specifically, the inner sleeve 2 in the preferred embodiment is shown in fig. 4, and is of a collapsible multi-section design, and comprises a starting sleeve 201, a middle sleeve 202 and a tail sleeve 203 shown in fig. 6-7, wherein the diameters of the three sleeves are sequentially reduced, and the three sleeves can be sequentially matched to form the inner sleeve 2 with a certain length shown in fig. 4. By arranging the inner snap ring 204 and/or the outer snap ring 205 at the corresponding positions of the three sleeves, the inner snap ring 204 and the outer snap ring 205 are abutted on the side wall in the axial direction to realize the matching and limiting of the inner snap ring 204 and the outer snap ring 205 in the axial direction, the thickness of the inner snap ring 204 which can be matched with each other is not less than the thickness of the corresponding outer snap ring 204, and the inner diameter of the inner snap ring 204 is less than the outer diameter of the corresponding outer snap ring 205.
Further, the start sleeve 201 in the preferred embodiment is shown in fig. 6(a) and 6(b), wherein fig. 6(a) is a cross-sectional view of the start sleeve 201, and fig. 6(b) is a left side view of the start sleeve 201. In the inner sleeve 2, the pipe diameter of the starting end sleeve 201 is the largest, one end of the starting end sleeve is a connecting end 2011 capable of being correspondingly connected with the sealing cover 3, the other end of the starting end sleeve is a first limiting end 2012 capable of being correspondingly matched with the middle sleeve 202, an inner snap ring 204 with a certain thickness and width is arranged on the inner peripheral wall of the end part of the first limiting end 2012 along the circumferential direction, namely, a first inner snap ring, the inner diameter of the first inner snap ring is not less than the outer diameter of the middle sleeve 202 with the largest size, and in a preferred embodiment, the inner diameter of the first inner snap ring is preferably equal to the outer diameter of the middle sleeve 202 with the largest pipe diameter size, so that the middle sleeve 202 with the.
Further, the middle sleeve 202 in the preferred embodiment is shown in fig. 7(a) and 7(b), wherein fig. 7(a) is a cross-sectional view of the middle sleeve 202 and fig. 7(b) is a left side view of the middle sleeve 202. One end of the middle sleeve 202 is a second limit end, an outer snap ring 205 with a certain thickness and width is circumferentially arranged on the outer peripheral wall surface of the middle sleeve 202, the other end of the middle sleeve 202 is a third limit end, an inner snap ring 204 with a certain thickness and width is circumferentially arranged on the inner peripheral wall surface of the third limit end, and in a preferred embodiment, the thickness of the inner snap ring 204 is the same as that of the outer snap ring 205. Further, in the preferred embodiment, there are a plurality of middle sleeves 202, the plurality of middle sleeves 202 may be sequentially and coaxially sleeved, and of the two adjacent matched middle sleeves 202, the middle sleeve 202 with a larger pipe diameter is correspondingly matched with the outer snap ring 205 of the middle sleeve 202 with a smaller pipe diameter by the inner snap ring 204, so as to realize axial position limitation of the plurality of middle sleeves 202, as shown in fig. 4. Further, the number of the middle sleeves 202 in the preferred embodiment is 2-5, and the length of each middle sleeve 202 is preferably equal, so that the other middle sleeves 202 except the middle sleeve 202 with the largest pipe diameter can be retracted into the middle sleeve 202 with the largest pipe diameter.
Further, the tip sleeve 203 in the preferred embodiment is shown in fig. 8(a) and 8(b), wherein fig. 8(a) is a sectional view of the tip sleeve 203 and fig. 8(b) is a left side view of the tip sleeve 203. Specifically, the end sleeve 203 is disposed corresponding to the middle sleeve 202 with the smallest pipe diameter, one end of the end sleeve 203 is a fourth position-limiting end, and the outer diameter of the end sleeve 203 is not larger than the inner inside diameter of the middle sleeve 202 with the smallest pipe diameter, and the outer diameter of the end sleeve 203 is equal to the inner inside diameter of the middle sleeve 202 matched with the end sleeve 203, so that the end sleeve 203 can be coaxially nested in the middle sleeve 202 with the smallest pipe diameter. Further preferably, an inner circumferential wall surface of one end of the end sleeve 203 away from the fourth limit end is correspondingly provided with an inner snap ring 204.
Further, in the preferred embodiment, the outer sleeve 1 is provided corresponding to the inner sleeve 2, and as shown in fig. 3(a) and 3(b), it includes a tube body 101 with uniform diameter, and its inner diameter is larger than the outer diameter of the starting end sleeve 201, and when the inner sleeve 2 is coaxially nested in the outer sleeve 1, there is a certain gap between the starting end sleeve 201 and the inner peripheral wall of the outer sleeve 1; further, a first annular table 102 and a second annular table 103 are arranged at one end of the outer sleeve 1 corresponding to the tail end sleeve 203 in the inner sleeve 2, the first annular table 102 is arranged on the inner peripheral wall surface of the outer sleeve 1 along the annular direction and has a certain width and thickness, and the inner diameter of the first annular table 102 is not smaller than the outer diameter of the tail end sleeve 203, so that one end of the tail end sleeve 203, which is far away from the fourth limiting end, can be correspondingly nested in the first annular table 102 and is correspondingly supported by the first annular table 102; further, the second annular table 103 with a certain width and thickness is correspondingly arranged on the inner peripheral wall surface of one end of the first annular table 102 close to the end of the outer sleeve 1, and the inner diameter of the second annular table 103 is smaller than the outer diameter of the tail end sleeve 203, so that the end of the tail end sleeve 203 can abut against the side wall surface of the second annular table 103 after being correspondingly nested in the first annular table 102, and the end limiting of the tail end sleeve 203 is realized.
Further, the sleeve 201 corresponding to the starting end of the inner sleeve 2 is further provided with a sealing cover 3 as shown in fig. 5(a) and 5(b), the sealing cover has a cover body 301 with a circular plate structure, the outer diameter of the cover body 301 is not smaller than the inner diameter of the outer sleeve 1, a through hole with a certain size is formed in the middle of the cover body 301 along the axial direction for water flow to pass through, and an annular snap ring with a certain thickness and length, namely a limit snap ring 302 as shown in fig. 5(b), is coaxially arranged on one side end face of the cover body 301; further, the sealing cover 3 in the preferred embodiment can be coaxially covered on the end of the outer sleeve 1 after the inner sleeve 2 is correspondingly embedded into the outer sleeve 1, and the limiting snap ring 302 is correspondingly embedded between the starting-end sleeve 201 and the outer sleeve 1; further, the inner diameter of the limit snap ring 302 is equal to the outer diameter of the starting sleeve 201, an inner peripheral wall surface of the limit snap ring 302 is correspondingly provided with an inner thread, and an outer peripheral wall surface of the connecting end 2011 of the starting sleeve 201 is provided with an outer thread, so that the limit snap ring 302 and the starting sleeve 201 can be matched in a threaded manner, and one side end surface of the cover body 301 abuts against the end portion of the outer sleeve 1, thereby fixing the end portion of the inner sleeve 201.
The utility model discloses a pre-buried drain pipe structure, which is applied as shown in figure 2, namely, one end of the pre-buried drain pipe close to the end sleeve 203 is correspondingly communicated with a wastewater disposal basin 5, and the end provided with a sealing cover 3 is correspondingly communicated with a sand pit 4; further, the pre-buried drain pipe structure in the preferred embodiment is set at a certain inclination angle when in use, that is, the setting height of one end of the starting-end sleeve 201 is higher than the setting height of one end of the tail-end sleeve 203, so that the arrangement can sufficiently ensure that the inner snap ring 204 and the outer snap ring 205 of two adjacent sleeves are always in a matching state after each sleeve in the inner sleeve 2 is correspondingly set, thereby avoiding the retraction of the corresponding sleeve, and further ensuring that one end of the tail-end sleeve 203 is always placed on the first ring platform 102, thereby realizing the setting of the pre-buried drain pipe structure.
Further, the utility model discloses a pre-buried drain pipe structure, it can be preferred when setting up to go on according to following step:
s1: a corresponding foundation pit is correspondingly arranged between the wastewater pond 5 and the desilting pit 4, and the bottom of the foundation pit correspondingly forms a certain inclination angle, so that the height of the foundation pit at one side close to the desilting pit 4 is higher than that of the wastewater pond 5;
s2: correspondingly and fixedly arranging an outer sleeve 1 at the bottom of the foundation pit, so that one end provided with a first annular platform 102 and a second annular platform 103 is close to a wastewater pool 5;
s3: an inner sleeve 2 formed by correspondingly matching an initial end sleeve 201, a middle sleeve 202 and a tail end sleeve 203 is correspondingly arranged in the outer sleeve 1, one end of the tail end sleeve 203, which is far away from a fourth limiting end, is correspondingly placed on the first ring table 102, and two adjacent sleeves are correspondingly abutted and limited by an inner snap ring 204 and an outer snap ring 205 respectively;
s4: the end part of the outer sleeve 1 is correspondingly provided with the sealing cover 3, the sealing cover 3 is correspondingly matched with the connecting end 2011 of the starting sleeve 201, the application of the pre-buried drain pipe structure in a foundation pit is realized, and finally the foundation pit is backfilled.
Of course, when the drainage pipe structure is pre-buried in practical application, the setting process may not be performed according to the above steps. Under the general condition, the outer sleeve 1 can be pre-buried when the underground line or the tunnel line is correspondingly arranged, the inner sleeve 2 can be correspondingly arranged in the sand pit 4 after the construction is finished, once the inner sleeve 2 is aged, blocked, damaged and the like, the sealing cover 3 can be taken down from the sand pit 4, the sleeves can be correspondingly retracted into the initial sleeve 201, the initial sleeve 201 is correspondingly taken out from the sand pit 4, and a new inner sleeve 2 is correspondingly replaced into the outer sleeve 1 from the sand pit 4, so that the inner sleeve 2 can be quickly replaced and arranged, the problems that the size of the sand pit 4 is small and the replacement difficulty of the drain pipe is high are effectively solved, the replacement cost of the drain pipe is saved, the replacement step of the pre-buried drain pipe is simplified, the setting and replacement period of the pre-buried drain pipe is shortened, and the application prospect and popularization value are good.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A quick-replaceable embedded drain pipe structure is characterized by comprising an outer sleeve, an inner sleeve which can be coaxially embedded in the outer sleeve and a sealing cover which is arranged corresponding to the inner sleeve; wherein the content of the first and second substances,
the outer sleeve comprises a pipe body in a circular tubular structure, a first ring platform which is a ring platform structure with certain length and thickness is arranged on the inner peripheral wall surface of one end of the pipe body along the annular direction, and a second ring platform with the length smaller than that of the first ring platform is arranged on the inner peripheral wall surface of one side, close to the end part of the pipe body, of the first ring platform, so that a two-stage annular step structure is formed at one end of the pipe body; and is
The inner sleeve comprises a starting sleeve, a middle sleeve and a tail sleeve, wherein the pipe diameters of the starting sleeve, the middle sleeve and the tail sleeve are sequentially reduced; the outer diameter of the starting-end sleeve is smaller than the inner diameter of the outer sleeve, the starting-end sleeve can be coaxially nested in the outer sleeve and is spaced from the inner peripheral wall surface of the outer sleeve by a certain distance, and a clamping ring structure with certain thickness and length, namely a first inner clamping ring, is arranged on the inner peripheral wall surface at one end of the outer sleeve along the annular direction; the outer diameter of the middle sleeve is not larger than the inner diameter of the first inner clamping ring, a first outer clamping ring is arranged on the outer peripheral wall surface of one end of the middle sleeve along the annular direction, the outer diameter of the first outer clamping ring is not smaller than the inner diameter of the first inner clamping ring, and a second inner clamping ring is arranged on the inner peripheral wall surface of the other end of the middle sleeve along the annular direction; a second outer snap ring is arranged on the peripheral wall surface of one end of the tail end sleeve, the outer diameter of the second outer snap ring is not smaller than the inner diameter of the second inner snap ring, the outer diameter of the tail end sleeve is not larger than the inner diameter of the second inner snap ring and the inner diameter of the first ring platform, and the outer diameter of the tail end sleeve is larger than the inner diameter of the second ring platform, so that one end of the tail end sleeve can coaxially penetrate through the second inner snap ring and is placed on the first ring platform through the end part; and
a sealing cover is arranged corresponding to the starting-end sleeve, the sealing cover comprises a cover body which is larger than the inner diameter of the outer sleeve in outer diameter and is in a plate-shaped structure, a through hole penetrating through two end faces is formed in the middle of the cover body along the axial direction, a limiting snap ring which is in a circular ring-shaped structure is coaxially arranged on one side end face of the cover body, the inner diameter of the limiting snap ring is equal to the outer diameter of the starting-end sleeve, the outer diameter of the limiting snap ring is not larger than the inner diameter of the outer sleeve, and one end, away from the first inner snap ring, of the starting-end sleeve can be coaxially; then the top sleeve pipe the middle part sleeve pipe with the end sleeve pipe can match the cover in proper order along the axial and establish, forms the interior sleeve pipe that the pipe diameter reduces in proper order along the axial, just the less one end of interior sleeve pipe diameter can correspond to take and put first ring bench, and with the second ring bench is spacing to its axial, and the great one end of interior sleeve pipe diameter can correspond the embedding spacing snap ring in and fixed to form quick replacement's pre-buried drain pipe structure.
2. The quick replaceable embedded drain structure of claim 1, wherein the starting sleeve, the middle sleeve and the end sleeve are each equal in length.
3. The quick replaceable embedded drain pipe structure as claimed in claim 1, wherein the middle casing comprises a plurality of casing units with sequentially reduced pipe diameters and sequentially sleeved along an axial direction; one end of the sleeve unit is provided with the first outer clamping ring, and the other end of the sleeve unit is provided with the second inner clamping ring; then the sleeve unit with the largest pipe diameter can be coaxially sleeved in the starting-end sleeve, the first outer clamping ring at the end part of the sleeve unit can be abutted against the first inner clamping ring in the axial direction, the sleeve unit with the smallest pipe diameter can be correspondingly matched with the tail-end sleeve, and the second inner clamping ring at the end part of the sleeve unit can be abutted against the second outer clamping ring in the axial direction.
4. The quick replaceable embedded drain structure of claim 3, wherein the length of each of the sleeve units is equal.
5. The quick-replaceable embedded drain pipe structure as claimed in any one of claims 1 to 4, wherein the limiting snap ring and the starting sleeve are correspondingly matched in a threaded connection manner, that is, an inner circumferential wall surface of the limiting snap ring is provided with an inner thread, and an outer thread is provided on an outer circumference of one end of the starting sleeve, which is far away from the first inner snap ring.
6. The quick-replaceable embedded drain pipe structure as claimed in any one of claims 1 to 4, wherein the thickness of the first inner snap ring is equal to the thickness of the first outer snap ring, and the thickness of the second outer snap ring is equal to the thickness of the second inner snap ring.
7. The quick-replaceable embedded drain pipe structure as claimed in any one of claims 1 to 4, wherein the first annular table and the second annular table are flush with the end surface of the outer sleeve respectively through side wall surfaces.
8. The quick replaceable embedded drain pipe structure as claimed in any one of claims 1 to 4, wherein the cover body of the sealing cover is a circular plate-shaped structure, and the outer diameter of the circular plate-shaped structure is larger than that of the outer sleeve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920629285.3U CN210421332U (en) | 2019-05-05 | 2019-05-05 | But quick replacement's pre-buried drain pipe structure |
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| CN201920629285.3U CN210421332U (en) | 2019-05-05 | 2019-05-05 | But quick replacement's pre-buried drain pipe structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110130458A (en) * | 2019-05-05 | 2019-08-16 | 中铁第四勘察设计院集团有限公司 | A kind of fast changeable pre-buried drain structure |
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2019
- 2019-05-05 CN CN201920629285.3U patent/CN210421332U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110130458A (en) * | 2019-05-05 | 2019-08-16 | 中铁第四勘察设计院集团有限公司 | A kind of fast changeable pre-buried drain structure |
| CN110130458B (en) * | 2019-05-05 | 2024-04-02 | 中铁第四勘察设计院集团有限公司 | But quick replacement's pre-buried drain pipe structure |
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