CN219569354U - Column type inspection pit precast concrete track stand - Google Patents
Column type inspection pit precast concrete track stand Download PDFInfo
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- CN219569354U CN219569354U CN202320953156.6U CN202320953156U CN219569354U CN 219569354 U CN219569354 U CN 219569354U CN 202320953156 U CN202320953156 U CN 202320953156U CN 219569354 U CN219569354 U CN 219569354U
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- 239000011178 precast concrete Substances 0.000 title claims abstract description 23
- 238000007689 inspection Methods 0.000 title claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 238000010276 construction Methods 0.000 abstract description 37
- 239000011440 grout Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 239000002002 slurry Substances 0.000 description 6
- 239000004567 concrete Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 101001130171 Homo sapiens L-lactate dehydrogenase C chain Proteins 0.000 description 1
- 102100031357 L-lactate dehydrogenase C chain Human genes 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The column type inspection pit precast concrete track column comprises a precast column and a column foundation, wherein the column foundation is connected with the precast column; the prefabricated upright post comprises at least one sleeve, and the upright post foundation comprises at least one embedded plug-in; and one end of the embedded plug-in is subjected to embedded treatment, and the other end of the embedded plug-in is fixed in the sleeve to realize connection with the prefabricated stand column. The utility model adopts a mode of prefabricating the upright post, thereby improving the efficiency of site construction; the sleeve is arranged on the prefabricated upright post, the sleeve is inserted into the embedded plug-in component which is subjected to embedded treatment when being installed on site, and the sleeve is fixedly connected with the embedded plug-in component, so that the fixed connection between the prefabricated upright post and the upright post foundation is realized, and by arranging the sleeve and the embedded plug-in component to be matched, constructors can accurately and conveniently install the prefabricated upright post and the upright post foundation when in site construction, the operation means of site construction are simplified, and the construction efficiency and the construction quality are improved.
Description
Technical Field
The utility model relates to the technical field of track engineering construction, in particular to a column type inspection pit precast concrete track column.
Background
In the existing urban rail transit, for example, each subway line is required to be provided with a joint overhaul storage, an operation vehicle and the like, wherein a plurality of overhaul pits for periodically overhauling the operation vehicles are arranged in the joint overhaul storage and the operation storage.
In the prior art, the upright post structures in most of the maintenance pits adopt a cast-in-place concrete form or a cast-in-place upright post and foundation integrated form;
when the in-situ concrete upright posts are poured, the number of the upright posts in the warehouse is large, and the upright posts need to be poured one by one in a formwork supporting mode, so that the installation period is long; the casting quality of the cast-in-place concrete is difficult to guarantee, the cast-in-place concrete is greatly influenced by the outside, and the construction error of the upright post is large, so that the construction quality is difficult to guarantee;
the existing prefabricated upright post and foundation integrated pouring mode often has the problems of cross operation of the upright post and foundation, difficult field management and low construction efficiency.
Disclosure of Invention
According to the column type inspection pit precast concrete track column, the mode of prefabricating the column is adopted, so that the on-site construction period time can be shortened, the construction efficiency and the construction quality are improved, the column and the foundation are separated to construct the precast column, meanwhile, the cross operation of civil engineering and a track laying unit is avoided, and on-site management is facilitated.
The column type inspection pit precast concrete track column comprises a precast column and a column foundation, wherein the column foundation is connected with the precast column, and the column foundation is at least partially positioned in a foundation;
wherein the prefabricated upright post comprises at least one sleeve, the upright post foundation comprises at least one embedded plug-in,
one end of the embedded plug-in is positioned in the upright post foundation, and the other end of the embedded plug-in is fixed in the sleeve to realize connection with the prefabricated upright post.
Compared with the prior art, the column type inspection pit precast concrete track column adopts a precast column mode, so that the site construction efficiency is improved; in addition, the sleeve is arranged on the prefabricated upright post, when the prefabricated upright post is installed on site, the sleeve is inserted into the embedded plug-in unit which is subjected to embedded treatment, the sleeve and the embedded plug-in unit are fixedly connected through sleeve grouting and caulking layer pouring, so that the fixed connection of the prefabricated upright post and an upright post foundation is realized, and constructors can accurately and conveniently realize the installation of the prefabricated upright post and the upright post foundation when the prefabricated upright post and the embedded plug-in unit are matched, the operation means of site construction are simplified, and the construction efficiency and the construction quality are improved; besides, after the upright post foundation is pre-buried, the upright post foundation and the prefabricated upright post can be independently manufactured by separately manufacturing and installing, and compared with the traditional method for simultaneously installing the upright post foundation and the prefabricated upright post on site, the utility model ensures that the upright post foundation and the prefabricated upright post do not need to be matched in site construction at the same time through the design of the sleeve, the specification and the size of the connecting part of the upright post foundation and the prefabricated upright post are limited and matched in the same specification, the upright post foundation and the prefabricated upright post can be ensured to be separately installed and well matched and connected after being manufactured, and the problems of cross operation, disordered construction, long construction time and the like of site construction are avoided.
Further, the prefabricated upright post comprises a threaded blind hole, and the upright post foundation comprises a limit plug-in component matched with the threaded blind hole.
Furthermore, the limit plug-in units are fixedly connected with the embedded plug-in units through lacing wire crossing or steel plate crossing.
Further, the embedded length of the embedded plug-in is more than or equal to 35d, wherein d is the diameter of the steel bar; and/or the number of the groups of groups,
the embedded length of the limiting plug-in is more than or equal to 15d, and the length of the head is 15d.
Further, the sleeve is provided with a grouting hole and a grouting hole, and the grouting hole is positioned below the grouting hole.
Further, the number of the sleeves is four, and the four sleeves are arranged at four corners of the prefabricated upright post.
Furthermore, an adjusting layer is arranged below the prefabricated upright post.
Further, the prefabricated upright post comprises a stirrup encrypting section, and the stirrup encrypting section is arranged at the end part of the prefabricated upright post.
Furthermore, the prefabricated upright post is provided with an outgoing line embedded pipe.
Further, a fastener is arranged above the prefabricated upright post, and the prefabricated upright post is connected with the rail through the fastener.
The utility model relates to a column type inspection pit precast concrete rail column which has at least the following technical effects:
through set up the screw thread blind hole on prefabricating the stand, and set up on the stand foundation with screw thread blind hole complex spacing plug-in components, during the construction, the accessible screw thread blind hole realizes the accurate positioning with spacing plug-in components's cooperation for prefabricating the connection of stand and stand foundation is comparatively accurate, stable;
the limit plug-in components and the pre-buried plug-in components are fixedly connected in a crossed manner by using lacing wires or steel plates, so that the effective stability of the upright post foundation can be ensured;
by limiting the pre-buried length and the head-out length of the limiting plug-in units and the pre-buried plug-in units, the pre-buried effect of the upright post foundation can be ensured, and the connection stability of the prefabricated upright post and the upright post foundation can be ensured;
by arranging the grouting holes and the grouting holes on the sleeve and arranging the grouting holes at the upper end of the grouting holes, whether the grouting of the sleeve is finished or not can be known by observing the overflow degree of the grouting holes;
through respectively setting up a sleeve at four angles of prefabricated stand, four sleeves cooperate jointly, inject the connection of prefabricated stand and stand basis for during on-the-spot construction, the stand basis is more convenient, accurate with the connection of prefabricated stand.
Drawings
FIG. 1 is a schematic structural view of a column inspection pit precast concrete track column in accordance with one embodiment of the present utility model;
FIG. 2 is a schematic plan view of a prefabricated pillar according to an embodiment of the present utility model;
FIG. 3 is a schematic view of the connection structure of prefabricated columns and rails according to an embodiment of the present utility model;
FIG. 4 is a schematic cross-sectional view of a sleeve and blind threaded bore according to an embodiment of the present utility model;
FIG. 5 is a schematic cross-sectional view of an embodiment of the present utility model showing an embedment tube;
FIG. 6 is a schematic cross-sectional view of a dedicated return rail bolt hole in accordance with an embodiment of the present utility model;
FIG. 7 is a schematic front view of an insert in accordance with an embodiment of the present utility model;
fig. 8 is an enlarged partial schematic view of fig. 1.
Reference numerals: 1. column type inspection pit precast concrete track column;
11. prefabricating upright posts; 111. a sleeve; 112. a threaded blind hole; 113. a fastener; 114. an adjustment layer; 115. a stirrup encrypting section; 116. an outgoing line embedded pipe; 117. bolt holes; 118. embedding a sleeve into the fastener; 1111. grouting holes; 1112. a pulp outlet hole;
12. a column foundation; 121. embedding an insert; 122. a limit plug-in;
2. a rail.
Detailed Description
In order to better understand the technical solutions of the present disclosure, the present disclosure will be described in detail, clearly and completely 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 present disclosure.
In the description of the present utility model, the description of the first and second is only for the purpose of distinguishing technical features, and should not be construed as indicating or implying relative importance or implying the number of technical features indicated or the precedence of the technical features indicated.
It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present utility model.
The utility model is described in further detail below with reference to the accompanying drawings, see for example figures 1 to 8.
As shown in fig. 1, for providing a structural schematic diagram of a column type inspection pit precast concrete track column, the column type inspection pit precast concrete track column 1 of the present utility model includes a precast column 11 and a column foundation 12, the column foundation 12 is connected with the precast column 11, and the column foundation 12 is at least partially located in a foundation, thereby realizing installation of the precast concrete track column; the prefabricated upright post 11 comprises at least one sleeve 111, the upright post foundation 12 comprises at least one embedded plug-in 121, one end of the embedded plug-in 121 is positioned in the upright post foundation 12, namely, one end of the embedded plug-in 121 is poured in advance, the other end of the embedded plug-in 121 is exposed on the terrace, when the prefabricated upright post 11 is installed on site, the sleeve 111 end of the prefabricated upright post 11 is sleeved on the exposed end of the embedded plug-in 121, after the embedded plug-in 121 is fixedly connected with the sleeve 111, grouting and pouring embedded mortar pouring are carried out, and thus, the fixed connection between the upright post foundation 12 and the prefabricated upright post 11 is realized.
In the embodiment, the efficiency of site construction is improved by prefabricating the upright posts 11; in addition, the sleeve 111 is arranged on the prefabricated upright 11, when the prefabricated upright is installed on site, the sleeve 111 is inserted into the embedded plug-in 121 which is subjected to embedded treatment, and the sleeve 111 is fixedly connected with the embedded plug-in 121, so that the fixed connection of the prefabricated upright 11 and the upright foundation 12 is realized, and by arranging the sleeve 111 and the embedded plug-in 121 to be matched, constructors can accurately and conveniently realize the installation of the prefabricated upright 11 and the upright foundation 12 when in site construction, the operation means of site construction are simplified, and the construction efficiency and the construction quality are improved; besides, after the upright post foundation 12 is pre-buried, the upright post foundation 12 and the prefabricated upright post 11 can be manufactured independently by separately manufacturing and installing, and compared with the traditional method for simultaneously installing the upright post foundation 12 and the prefabricated upright post 11 on site, the utility model ensures that the upright post foundation 12 and the prefabricated upright post 11 do not need to be matched in site construction at the same time by the design of the sleeve 111, the specification and the size of the connecting part of the upright post foundation 12 and the prefabricated upright post 11 are uniformly limited and matched, the upright post foundation 12 and the prefabricated upright post 11 can be ensured to be installed separately and can be well matched and connected after being manufactured, and the problems of cross operation, disordered construction, long construction time and the like of site construction are avoided.
Preferably, as shown in fig. 2, the inside of the prefabricated upright 11 is of a solid design, the section of the prefabricated upright 11 is optimized to be 350mmX and 350mm, compared with 400mmX and 400mm of a traditional cast-in-situ upright, the upright material is saved, the weight is reduced, and the transportation and the lifting are convenient.
Preferably, the longitudinal distance between each prefabricated upright 11 in the line direction is 1250mm, and the height length from the top of each rail 2 to the terrace is 1100mm or 1000mm.
Preferably, the sleeve 111 is of CT32 type, the sleeve 111 is distributed at four corners of the prefabricated upright 11, the outer diameter of the sleeve 111 is between 60 and 65mm, the inner diameter is between 45 and 50mm, and the total length of the sleeve 111 is between 300 and 350 mm. More preferably, sleeve 111 has an outer diameter of 63mm, an inner diameter of 48mm and an overall length of 330mm.
In an alternative embodiment of the present utility model, as shown in fig. 1 and 4, the preformed stud 11 includes a threaded blind bore 112 and the stud base 12 includes a stop insert 122 that mates with the threaded blind bore 112. In this embodiment, the spacing plug-in 122 is reserved, and accurate positioning is achieved through cooperation of the threaded blind hole 112 and the spacing plug-in 122, so that connection between the prefabricated upright 11 and the upright foundation 12 is accurate and stable.
Preferably, the threaded blind hole 112 is 260mm long and 50mm in diameter, and the connecting effect of the threaded blind hole 112 and the limiting reinforcing steel bars is more stable by reasonably setting the size of the threaded blind hole 112.
In an alternative embodiment of the present utility model, as shown in fig. 1 and 8, the limiting insert 122 is fixedly connected with the pre-embedded insert 121 by tie bars or steel plates. In this embodiment, the spacing plug-in 122 and the embedded plug-in 121 are fixedly connected through tie bars or steel plates, so that the spacing plug-in 122 is positioned on site, grouting and caulking pouring of the prefabricated upright 11 are performed after foundation pouring, on-site cross operation can be avoided, and the construction efficiency is improved.
Preferably, before construction, the pre-buried plug-in components 121, spacing plug-in components 122 have all been carried out the ligature with basic steel reinforcement cage to carry out the integral type and pour, can improve the stability of stand basis 12, be convenient for follow-up stand basis 12 with prefabricate the connection of stand 11.
In another alternative embodiment of the present utility model, as shown in FIG. 1, in this embodiment, there are three possible embodiments, one of which is that the pre-buried length of the pre-buried insert 121 can be set to be greater than or equal to 35d, where d is the diameter of the rebar; the other is that the embedded length of the limiting plug-in 122 is more than or equal to 15d, and the length of the head is 15d; the last one is to set the pre-buried length of the pre-buried plug-in unit 121 to be more than or equal to 35d, the pre-buried length of the limiting plug-in unit 122 to be more than or equal to 15d, and the length of the head to be 15d, wherein d is the diameter of the steel bar. In this embodiment, the above three schemes can ensure the pre-embedding effect of the column foundation 12 by limiting the pre-embedding length and the head-out length of the limiting plug-in unit 122 and the pre-embedding plug-in unit 121, and ensure the connection stability of the prefabricated column 11 and the column foundation 12.
Preferably, the head length of the pre-embedded insert 121 is between 160mm and 170 mm; more preferably, the length of the head of the embedded plug-in 121 is 164mm, and before the prefabricated upright 11 is installed, the embedded ribs are ensured to meet the requirement, so that the construction efficiency can be improved.
In an alternative embodiment of the present utility model, as shown in fig. 1, a grouting hole 1111 and a grouting hole 1112 are provided on the sleeve 111, and the grouting hole 1111 is located below the grouting hole 1112. In the present embodiment, slurry is injected from the grouting holes 1111, the grout outlet holes 1112 are provided at the upper ends of the grouting holes 1111, and whether the grouting of the sleeve 111 is completed can be known by observing the overflow degree of the grout outlet holes 1112.
Similarly, the blind threaded hole 112 is also provided with a grout outlet 1112 and a grout outlet 1111, and the grout outlet 1111 is located below the grout outlet 1112.
In another alternative embodiment of the present utility model, as shown in fig. 1 and 4, four sleeves 111 are provided, and four sleeves 111 are provided at four corners of the prefabricated pillar 11. In this embodiment, the sleeves 111 are distributed at four corners of the prefabricated upright post 11, the four embedded inserts 121 on the upright post foundation 12 are in one-to-one correspondence with the sleeves 111, and the four sleeves 111 are matched together to limit the connection between the prefabricated upright post 11 and the upright post foundation 12, so that the connection between the upright post foundation 12 and the prefabricated upright post 11 is more convenient and accurate during site construction.
In an alternative embodiment of the utility model, as shown in fig. 1, 3 and 8, an adjustment layer 114 is provided under the prefabricated pillar 11. In this embodiment, the adjustment layer 114 performs leveling and connection functions, and when the prefabricated upright 11 is in place and the track is accurately adjusted, special caulking mortar is used for pouring.
Preferably, the thickness of the adjustment layer 114 is between 15-30 mm. More preferably, the adjustment layer 114 has a thickness of 20mm.
In an alternative embodiment of the present utility model, as shown in fig. 1, the prefabricated pillar 11 includes a stirrup-encryption section 115, and the stirrup-encryption section 115 is provided at an end of the prefabricated pillar 11. In this embodiment, as shown in fig. 1, the prefabricated upright 11 includes longitudinal ribs and stirrups, the inside of the rib body is solid, and the longitudinal ribs and the stirrups have the function of reinforcing the strength of the prefabricated upright 11; be equipped with stirrup encryption section 115 and stirrup standard section in the prefabricated stand 11, the interval is denser than stirrup standard section between the adjacent annular stirrup in the stirrup encryption section 115, and prefabricated stand 11 middle part is located to the stirrup standard section, because prefabricated stand 11's both ends are atress concentrated section often, so with stirrup encryption section 115 set up in being close to stand upper and lower both ends position for prefabricated stand 11 both ends are strengthened, are difficult to damage, thereby guarantee life.
In an alternative embodiment of the utility model, as shown in fig. 1, 4 and 5, the prefabricated upright 11 is provided with an outgoing line pre-buried pipe 116. In this embodiment, the outgoing line embedded pipe 116 is used for threading during construction for relevant professions such as a professional, and the outgoing line embedded pipe 116 is of a PC25 type.
In an alternative embodiment of the present utility model, as shown in fig. 1, a fastening 113 is provided above the prefabricated pillar 11, and the prefabricated pillar 11 is connected to the rail by the fastening 113. In this embodiment, the fastener 113 is used to connect the prefabricated pillar 11 with the track, and in the prefabricated pillar 11, a fastener pre-embedded sleeve 118 is provided to facilitate subsequent assembly of the fastener 113.
Preferably, the fastening member 113 may be any one of a general fastening member 113 and a vibration damping fastening member 113.
In an alternative embodiment of the utility model, the top surface of the interior of the prefabricated upright 11 is flat, no rail bottom slope is provided, and 1 is provided by the fastener 113: the 40 rail bottom slopes are arranged through the fasteners 113, the top surfaces of the prefabricated upright posts 11 are flat slopes, elevation control is good, secondary pouring adjustment is not needed, and therefore the rail installation accuracy is guaranteed.
In another alternative embodiment of the utility model, as shown in fig. 6, 4 bolt holes 117 are arranged on the upper side of the prefabricated upright 11, and are arranged in 2 rows, wherein the distance between the upper row and the lower row is 150mm, the distance between the reserved holes of the upper row and the top surface of the upright is 150mm, the distance between the reserved holes of the upper row and the reserved holes of the lower row is 90mm, the reserved holes of the upper row are arranged on the prefabricated upright 11 in a centering manner, the aperture of each bolt hole 117 is phi 18mm, and the depth of each hole is 225mm, so that the prefabricated upright can be used for installing a special return rail.
It should be noted that, the limiting plug-in 122 and the pre-embedded plug-in 121 are screw-thread steel bars; the longitudinal bars, stirrups, etc. as shown in fig. 1 and 8 are all screw-thread steel.
In the actual use process, the column foundation 12 is pre-buried in the construction site in advance, then the sleeve 111 end of the prefabricated column 11 is aligned with the pre-buried plug-in unit 121 of the column foundation 12, the threaded blind hole 112 is aligned with the limit plug-in unit 122, then slurry is injected from the grouting hole 1111 of the sleeve 111, when the slurry flows out from the slurry outlet 1112 of the sleeve 111, the slurry in the sleeve 111 is fully filled, the adjusting layer 114 and the sleeve 111 are matched for grouting, and the adjusting layer 114 adopts special caulking mortar; and waiting for the slurry to solidify, and finishing the installation of the prefabricated upright post 11 and the upright post foundation 12.
The foregoing has outlined rather broadly the more detailed description of the utility model in order that the detailed description of the utility model that follows may be better understood, and in order that the present utility model may be better understood. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.
Claims (10)
1. The column type inspection pit precast concrete track column is characterized by comprising a precast column (11) and a column foundation (12), wherein the column foundation (12) is connected with the precast column (11), and the column foundation (12) is at least partially positioned in a foundation;
wherein the prefabricated upright (11) comprises at least one sleeve (111), the upright foundation (12) comprises at least one pre-buried insert (121),
one end of the embedded plug-in unit (121) is positioned in the upright post foundation (12), and the other end of the embedded plug-in unit (121) is fixed in the sleeve (111) to realize connection with the prefabricated upright post (11).
2. A column inspection pit precast concrete track column according to claim 1, wherein,
the prefabricated upright (11) comprises a threaded blind hole (112), and the upright foundation (12) comprises a limiting insert (122) matched with the threaded blind hole (112).
3. A column inspection pit precast concrete track column according to claim 2, wherein,
the limiting plug-in units (122) are fixedly connected with the embedded plug-in units (121) through lacing wires or steel plates.
4. A column inspection pit precast concrete track column according to claim 2, wherein,
the embedded length of the embedded plug-in unit (121) is more than or equal to 35d, wherein d is the diameter of the steel bar; and/or the number of the groups of groups,
the embedded length of the limiting plug-in (122) is more than or equal to 15d, and the length of the head is 15d.
5. A column inspection pit precast concrete track column according to any one of claims 1 to 4, wherein,
the sleeve (111) is provided with a grouting hole (1111) and a grouting hole (1112), and the grouting hole (1111) is positioned below the grouting hole (1112).
6. A column inspection pit precast concrete track column according to claim 5, wherein,
the number of the sleeves (111) is four, and the four sleeves (111) are arranged at four corners of the prefabricated upright post (11).
7. A column inspection pit precast concrete track column according to claim 5, wherein,
an adjusting layer (114) is arranged below the prefabricated upright post (11).
8. A column inspection pit precast concrete track column according to claim 5, wherein,
the prefabricated upright post (11) comprises a stirrup encryption section (115), and the stirrup encryption section (115) is arranged at the end part of the prefabricated upright post (11).
9. A column inspection pit precast concrete track column according to claim 5, wherein,
the prefabricated upright post (11) is provided with an outgoing line embedded pipe (116).
10. The column type inspection pit precast concrete track column according to claim 5, wherein a fastener (113) is arranged above the precast column (11), and the precast column (11) is connected with the track through the fastener (113).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320953156.6U CN219569354U (en) | 2023-04-23 | 2023-04-23 | Column type inspection pit precast concrete track stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320953156.6U CN219569354U (en) | 2023-04-23 | 2023-04-23 | Column type inspection pit precast concrete track stand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219569354U true CN219569354U (en) | 2023-08-22 |
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ID=87653350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320953156.6U Active CN219569354U (en) | 2023-04-23 | 2023-04-23 | Column type inspection pit precast concrete track stand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219569354U (en) |
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2023
- 2023-04-23 CN CN202320953156.6U patent/CN219569354U/en active Active
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Address after: 315000 No.496, Xindian Road, Haishu District, Ningbo City, Zhejiang Province Patentee after: Zhejiang Huazhan Research and Design Institute Co.,Ltd. Country or region after: China Patentee after: CHINA RAILWAY ENGINEERING CONSULTATION GROUP Co.,Ltd. Address before: 315000 No.496, Xindian Road, Haishu District, Ningbo City, Zhejiang Province Patentee before: ZHEJIANG HUAZHAN INSTITUTE OF ENGINEERING RESEARCH AND DESIGN Country or region before: China Patentee before: CHINA RAILWAY ENGINEERING CONSULTATION GROUP Co.,Ltd. |
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