CN220705165U - Adjustable post location and prevent rotten root instrument - Google Patents
Adjustable post location and prevent rotten root instrument Download PDFInfo
- Publication number
- CN220705165U CN220705165U CN202321497126.5U CN202321497126U CN220705165U CN 220705165 U CN220705165 U CN 220705165U CN 202321497126 U CN202321497126 U CN 202321497126U CN 220705165 U CN220705165 U CN 220705165U
- Authority
- CN
- China
- Prior art keywords
- unit
- angle steel
- unit group
- unit groups
- adjacent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 62
- 239000010959 steel Substances 0.000 claims description 62
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 230000002265 prevention Effects 0.000 claims description 4
- 239000002893 slag Substances 0.000 abstract description 5
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The utility model discloses an adjustable column positioning and root rot preventing tool which is characterized in that the tool is a polygonal frame structure which is formed by sequentially assembling a plurality of unit groups and is consistent with the horizontal cross section shape of a concrete column to be poured, one side edge of the frame structure corresponds to one unit group, each unit group is detachably connected with an adjacent unit group, each unit group comprises a plurality of unit elements which are sequentially and detachably connected, each unit element is arranged at the root of the concrete column, the bottom of the unit element is contacted with the ground, and a template is erected at the top of the unit group. The utility model can clean the residual garbage at the root of the column after the template is erected, ensure the pouring quality of the concrete column and avoid the phenomenon of slag inclusion and root rot of the concrete column while realizing accurate positioning and blocking of the concrete column.
Description
Technical Field
The utility model relates to the technical field of concrete structural members. More particularly, the present utility model relates to an adjustable post positioning and root rot prevention tool.
Background
In traditional construction, the post root of concrete column appears positional deviation easily, cross-section size control is not good, post template seals post root department and has the phenomenon that rubbish can't clear up and lead to the rotten root of clamp slag, the patent of application number 201910006127.7 discloses a pin-connected high ductility cement sleeve cast in place concrete composite post of exempting from to form, and it comprises panel, strengthening rib connecting piece and cast-in-place concrete, and wherein the panel just is equivalent to the template of cast-in-place concrete, and the panel includes dull and stereotyped and gusset plate, dull and stereotyped and gusset plate pass through mortise structure connection, and be consolidated by strengthening rib and connecting piece and form, dull and stereotyped both ends design is "protruding" font to the design has the tenon, the gusset plate both ends design is "concave" font to the design has the tongue-and groove, before carrying out concrete placement, assembles the panel and forms confined framework structure, and panel that the mortise structure connects and form integral structure, after the panel is assembled, before concreting, can not clear up the remaining rubbish of post root, there is the potential safety hazard of clamp slag root of pouring.
Disclosure of Invention
It is an object of the present utility model to solve at least the above problems and to provide at least the advantages to be described later.
The utility model also aims to provide an adjustable column positioning and root rot preventing tool, which can clean the residual garbage at the root of the column after the template is erected, ensure the pouring quality of the concrete column and avoid the phenomenon of slag inclusion and root rot of the concrete column while realizing accurate positioning and blocking of the concrete column.
To achieve these objects and other advantages and in accordance with the purpose of the utility model, there is provided an adjustable post positioning and root rot preventing tool, which is a polygonal frame structure formed by sequentially assembling a plurality of unit groups in conformity with the horizontal cross-sectional shape of a concrete post to be poured, one side of the frame structure corresponding to one unit group, each unit group being detachably connected to an adjacent unit group, each unit group including a plurality of unit elements detachably connected in sequence, each unit element having a bottom portion in contact with the ground, and a form being erected on top.
Preferably, the horizontal section of the concrete column to be poured is rectangular, the tool is a rectangular frame structure formed by sequentially assembling four unit groups, and each unit group comprises a plurality of unit elements; each unit piece is a U-shaped structure, and the unit piece includes:
the longitudinal angle steel is arranged along the length direction of the side edge of the corresponding rectangular frame body structure, one side of the upper part of the longitudinal angle steel is provided with an L-shaped step for placing the template, and the other side of the bottom is provided with a horizontal plate which is in contact with the ground;
the two transverse angle steels are respectively arranged at the two ends of the longitudinal angle steel and are positioned at the same side with the horizontal plate, one end of each transverse angle steel is connected with the end part of the longitudinal angle steel, and the other end extends along the direction perpendicular to the longitudinal angle steel;
adjacent two transverse angle steel of two adjacent single elements positioned on the same side are detachably connected;
two ends of the two first unit groups which are symmetrically arranged are detachably connected with the two second unit groups which are symmetrically arranged respectively.
Preferably, the adjustable post positioning and root rot preventing tool is characterized in that the longitudinal angle steel and the two transverse angle steel of each single element are integrally formed.
Preferably, the adjustable post location and prevent rotten root instrument, be equipped with the bolt hole on the horizontal angle steel of every single element, be located two adjacent horizontal angle steel detachable connection of homonymy and two adjacent single elements, specifically: the rod parts of the bolts sequentially penetrate through two bolt holes on two adjacent transverse angle steels and are fixed through first nuts.
Preferably, the adjustable post positioning and root rot preventing tool has two ends of two first unit groups symmetrically arranged connected with two second unit groups symmetrically arranged through opposite-pull screws respectively.
Preferably, the adjustable pillar positioning and root rot preventing tool is provided with a second bolt hole penetrating along the width direction of the longitudinal angle steel at two ends, and a third bolt hole is arranged on the transverse angle steel; two ends of two first unit groups that the symmetry set up can dismantle with two second unit groups that the symmetry set up respectively and be connected, specifically: the opposite-pulling screw rod sequentially passes through one second bolt hole at the end part of one second unit group, all third bolt holes on the two first unit groups, one second bolt hole at the end part of the other second unit group, and the two ends of the opposite-pulling screw rod are fixed through second nuts.
Preferably, the adjustable pillar positioning and root rot preventing tool has the width of the L-shaped step on the longitudinal angle steel consistent with the thickness of the template.
The utility model at least comprises the following beneficial effects: the utility model discloses an adjustable column positioning and root rot preventing tool which is arranged at the root of concrete and positioned at the bottom of a concrete template, can be used for plugging the bottom of the template for pouring concrete, avoids slurry leakage at the bottom of the template when the concrete is poured, adopts a plurality of unit elements for assembly, can adaptively adjust the length of each unit group according to the size of a concrete column, and is suitable for concrete columns with different sizes.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
FIG. 1 is a top view of an adjustable post positioning and root rot prevention tool according to one embodiment of the present utility model;
FIG. 2 is a schematic view showing the structure of a unit cell in another embodiment of the present utility model;
fig. 3 is a schematic structural view of a unit piece spliced with a mold plate in another embodiment of the present utility model.
Reference numerals illustrate: 1-longitudinal angle steel; 11-steps; 12-horizontal plates; 13-a second bolt hole; 2-transverse angle steel; 21-bolt holes; 22-third bolt holes; 3-templates; 4-opposite-pulling a screw; 5-bolts.
Detailed Description
The present utility model is described in further detail below with reference to the drawings and examples to enable those skilled in the art to practice the utility model by referring to the description.
It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
In the description of the present utility model, the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus are not to be construed as limiting the present utility model.
As shown in fig. 1 to 3, the utility model provides an adjustable post positioning and root rot preventing tool, which is a polygonal frame structure formed by sequentially assembling a plurality of unit groups and consistent with the horizontal cross section shape of a concrete post to be poured, one side edge of the frame structure corresponds to one unit group, each unit group is detachably connected with an adjacent unit group, each unit group comprises a plurality of unit elements which are sequentially detachably connected, each unit element is arranged at the root part of the concrete post, the bottom of the unit element is contacted with the ground, and a template is erected at the top of the unit group.
In the technical scheme, the utility model discloses an adjustable post positioning and root rot preventing tool which is arranged at the root of concrete and at the bottom of a concrete template, can be used for plugging the bottom of the template for pouring concrete and positioning the post size, and can be used for effectively controlling the cross section of the post while avoiding slurry leakage at the bottom of the template when the concrete is poured; the utility model adopts a plurality of unit elements to assemble, can adaptively adjust the length of each unit group according to the size of the concrete column, is suitable for concrete columns with different sizes, and can realize the cleaning of the residual garbage of the column root before the concrete pouring and avoid the condition of rotten root of the concrete column caused by slag inclusion because the unit groups of each side are detachably connected when the root of the concrete column is positioned.
The utility model is a frame body structure which is adapted to the horizontal section of a concrete column, and in particular, the tool provided by the utility model is consistent with the horizontal section of a template of the concrete column in shape, and is a plugging piece for sealing the bottom of the template.
In the actual construction process, a unit group (a port is reserved) on one side edge can be reserved, the rest unit groups are assembled, the bottom of each unit element of each unit group is flush with the ground in the assembly process, a plurality of unit elements are detachably connected, two adjacent unit groups are detachably connected, after the assembly is completed, the template is erected, the root of a concrete column in an area surrounded by the template is cleaned after the template is erected, the cleaned garbage can be discharged from the port, and after the cleaning is completed, the reserved unit groups are assembled in place, and then the bottom of the template and the ground are completely plugged.
In another technical scheme, the horizontal section of the concrete column to be poured is rectangular, the tool is a rectangular frame structure formed by sequentially assembling four unit groups, and each unit group comprises a plurality of unit elements; each unit piece is a U-shaped structure, and the unit piece includes:
the longitudinal angle steel is arranged along the length direction of the side edge of the corresponding rectangular frame body structure, one side of the upper part of the longitudinal angle steel is provided with an L-shaped step for placing the template, and the other side of the bottom is provided with a horizontal plate which is in contact with the ground;
the two transverse angle steels are respectively arranged at the two ends of the longitudinal angle steel and are positioned at the same side with the horizontal plate, one end of each transverse angle steel is connected with the end part of the longitudinal angle steel, and the other end extends along the direction perpendicular to the longitudinal angle steel;
adjacent two transverse angle steel of two adjacent single elements positioned on the same side are detachably connected;
two ends of the two first unit groups which are symmetrically arranged are detachably connected with the two second unit groups which are symmetrically arranged respectively.
In the above technical scheme, further limited the shape structure of instrument be rectangular frame body, be applicable to the common horizontal cross-section in the construction and be rectangular concrete column, including four unit groups, every unit group is by a plurality of unit components can dismantle in proper order and assemble and form, and two adjacent unit groups can dismantle the connection, in the above technical scheme, the concrete structure of unit component to and unit component, unit group and unit group's concrete detachable connection mode specifically is: the single element is of a U-shaped structure formed by a longitudinal angle steel and two transverse angle steel, the two transverse angle steel provides a connecting part of the two adjacent single elements, the longitudinal angle steel is used for plugging a gap between the template and the ground, an L-shaped step matched with the bottom of the template is further arranged on the inner side of the upper part of the longitudinal angle steel, the single element can be assembled with the template in a more fitting way, and a horizontal plate attached to the ground is further arranged at the bottom of the longitudinal angle steel, so that the plugging effect of the utility model is improved;
as shown in fig. 2 to 3, the inner side (one side) (right side as shown in fig. 3) of the longitudinal angle steel of the unit piece with the U-shaped structure is provided with an L-shaped step for placing the template, the bottom of the outer side (left side as shown in fig. 3) is provided with a horizontal plate in contact with the ground, the transverse angle steel extends towards the outer side (left side as shown in fig. 2) of the longitudinal angle steel, and the unit piece has simple integral structure and better stability; the adjacent two single elements are detachably connected with the adjacent two transverse angle steels through bolts, so that the detachable connection of the two single elements is realized, and the plurality of single elements of each unit group are connected according to the method; for adjacent unit groups, two second unit groups which are symmetrically arranged can be detachably connected with two first unit groups at two ends of the two second unit groups, so that the detachable assembly of a plurality of unit groups is realized.
In another technical scheme, the adjustable post positioning and root rot preventing tool is characterized in that the longitudinal angle steel and the two transverse angle steel of each single element are integrally formed. The longitudinal angle steel and the two transverse angle steel are arranged into an integrally formed structure, so that the stability of the whole tool structure is improved.
In another technical scheme, adjustable post location and prevent rotten root instrument, be equipped with the bolt hole on every single element's the horizontal angle steel, be located the same side and adjacent two adjacent horizontal angle steel detachable connection of two single elements, specifically: the rod parts of the bolts sequentially penetrate through two bolt holes on two adjacent transverse angle steels and are fixed through first nuts.
In the above technical scheme, set up the bolt hole on horizontal angle steel, the concrete realization mode of the detachable connection of two adjacent single elements is: the shaft portion of the bolt passes through two adjacent first bolt holes of two adjacent single elements and is fixed by a first nut. The connection structure between the single elements is simple, the operation is easy, the assembly construction efficiency is improved, and the equipment cost is reduced.
In another technical scheme, the adjustable post location and prevent rotten root instrument, the both ends of two first unit groups that the symmetry set up are connected through the counter-pulling screw rod with two second unit groups that the symmetry set up respectively.
In another technical scheme, the adjustable post positioning and root rot preventing tool is characterized in that two ends of the longitudinal angle steel are respectively provided with a second bolt hole penetrating along the width direction of the longitudinal angle steel, and the transverse angle steel is provided with a third bolt hole; two ends of two first unit groups that the symmetry set up can dismantle with two second unit groups that the symmetry set up respectively and be connected, specifically: the opposite-pulling screw rod sequentially passes through one second bolt hole at the end part of one second unit group, all third bolt holes on the two first unit groups, one second bolt hole at the end part of the other second unit group, and the two ends of the opposite-pulling screw rod are fixed through second nuts.
In the technical scheme, the utility model particularly discloses a detachable connection structure characteristic between the unit groups, and the detachable connection between the unit groups is realized through the mutual pull of the screw rods and the fixation of two second nuts, so that the structure is simple and the operation is easy;
the best structure of the utility model is specifically described: reserving one side edge, splicing the rest three unit groups (the rectangular concrete column is preferably applicable to the utility model, three of the unit groups can be a plurality of unit groups, the number of the rest unit groups is determined according to the specific shape of the concrete column to be poured), specifically splicing, sequentially penetrating the opposite-pull screw rods through second bolt holes at the end parts of one second unit group which are symmetrically arranged, all second bolt holes (penetrating through along the length direction of the first unit group) on the first unit group (which are clamped between the two second unit groups which are symmetrically arranged), screwing second nuts at the two ends of the opposite-pull screw rods, and fixing the two ends of the opposite-pull screw rods; in the assembling process, the L-shaped steps are kept to face inwards, and the horizontal plate is contacted with the ground.
In another technical scheme, the adjustable post positioning and root rot preventing tool has the width of the L-shaped step on the longitudinal angle steel consistent with the thickness of the template. The width of the step is set to be consistent with the thickness of the template, so that the single element and the template can be better attached and spliced.
The construction steps of the utility model include:
step 1, according to a structural design drawing of the tool, prefabricating a plurality of single elements in a factory according to the drawing;
step 2, determining the number of single elements used by each side according to the size of a concrete column to be poured (the length of each side) (the reasonable size of longitudinal angle steel in the single elements can be determined by referring to the size of the concrete column to be poured in the factory prefabrication process), assembling each unit group (one side corresponds to one unit group), arranging a plurality of single elements of each unit group in a straight shape along the length direction of the corresponding side in the assembling process, enabling the rod parts of bolts to penetrate through two adjacent bolt holes of two adjacent single elements, fixing the two adjacent single elements through first nuts, fixing the two adjacent single elements, and so on, and assembling the plurality of single elements of each unit group;
step 3, reserving one side edge, splicing the rest three unit groups (the rectangular concrete column is preferably applicable to the utility model, the number of the rest unit groups can be determined according to the specific shape of the concrete column to be poured), specifically splicing, sequentially penetrating the opposite-pull screw rods through second bolt holes at the end parts of one second unit group which are symmetrically arranged, all second bolt holes (penetrating through along the length direction of the first unit group) on the first unit group (which are clamped between the two second unit groups which are symmetrically arranged), screwing a second nut at the two ends of the opposite-pull screw rod, and fixing the two ends of the opposite-pull screw rod; in the assembling process, the L-shaped steps are kept to face inwards, and the horizontal plate is contacted with the ground;
step 4, erecting a concrete column template, namely placing the bottoms of the concrete column templates corresponding to the assembled three unit groups on an L-shaped step, and clamping templates on two adjacent sides to realize the erection of the templates on one side of the assembled unit groups;
step 5, reserving a port (the position of a unit group which is not assembled in place) at the bottom of the closed template, cleaning the garbage at the root of the column, and discharging the garbage from the port;
and 6, after the column roots are cleaned, closing the rest unit group, inserting the unit group (the other first unit group) into the L-shaped step of the unit group to plug the opening, enabling the template to be just placed on the L-shaped step of the unit group, connecting the unit group with two second unit groups which are symmetrically arranged through opposite-pulling screws, and fixing the unit group through two second nuts.
The number of equipment and the scale of processing described herein are intended to simplify the description of the present utility model. Applications, modifications and variations of the present utility model will be readily apparent to those skilled in the art.
Although embodiments of the present utility model have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the utility model would be readily apparent to those skilled in the art, and accordingly, the utility model is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (6)
1. The adjustable pillar positioning and root rot preventing tool is characterized in that the tool is a polygonal frame structure which is formed by sequentially assembling a plurality of unit groups and is consistent with the horizontal cross section shape of a concrete pillar to be poured, one side edge of the frame structure corresponds to one unit group, each unit group is detachably connected with the adjacent unit group, each unit group comprises a plurality of unit elements which are sequentially detachably connected, the bottom of each unit element is contacted with the ground, and a template is erected on the top of each unit element;
the horizontal section of the concrete column to be poured is rectangular, the tool is a rectangular frame structure formed by sequentially assembling four unit groups, and each unit group comprises a plurality of unit elements; each unit piece is a U-shaped structure, and the unit piece includes:
the longitudinal angle steel is arranged along the length direction of the side edge of the corresponding rectangular frame body structure, one side of the upper part of the longitudinal angle steel is provided with an L-shaped step for placing the template, and the other side of the bottom is provided with a horizontal plate which is in contact with the ground;
the two transverse angle steels are respectively arranged at the two ends of the longitudinal angle steel and are positioned at the same side with the horizontal plate, one end of each transverse angle steel is connected with the end part of the longitudinal angle steel, and the other end extends along the direction perpendicular to the longitudinal angle steel;
adjacent two transverse angle steel of two adjacent single elements positioned on the same side are detachably connected;
two ends of the two first unit groups which are symmetrically arranged are detachably connected with the two second unit groups which are symmetrically arranged respectively.
2. The adjustable post alignment and root rot prevention tool of claim 1, wherein the longitudinal angle of each unit piece is integrally formed with two transverse angles.
3. The adjustable post positioning and root rot preventing tool as set forth in claim 1, wherein each of the lateral angle steel of each unit element is provided with a bolt hole, and two adjacent lateral angle steel of two adjacent unit elements on the same side are detachably connected, specifically: the rod parts of the bolts sequentially penetrate through two bolt holes on two adjacent transverse angle steels and are fixed through first nuts.
4. The adjustable post positioning and root rot preventing tool according to claim 1, wherein two ends of the two first unit groups symmetrically arranged are respectively connected with two second unit groups symmetrically arranged through opposite-pull screws.
5. The adjustable post positioning and root rot preventing tool as set forth in claim 4, wherein the two ends of the longitudinal angle steel are respectively provided with a second bolt hole penetrating along the width direction, and the transverse angle steel is provided with a third bolt hole; two ends of two first unit groups that the symmetry set up can dismantle with two second unit groups that the symmetry set up respectively and be connected, specifically: the opposite-pulling screw rod sequentially passes through one second bolt hole at the end part of one second unit group, all third bolt holes on the two first unit groups, one second bolt hole at the end part of the other second unit group, and the two ends of the opposite-pulling screw rod are fixed through second nuts.
6. The adjustable post alignment and root rot prevention tool of claim 1, wherein the L-shaped step on the longitudinal angle is of a width consistent with the thickness of the form.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202321497126.5U CN220705165U (en) | 2023-06-13 | 2023-06-13 | Adjustable post location and prevent rotten root instrument |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202321497126.5U CN220705165U (en) | 2023-06-13 | 2023-06-13 | Adjustable post location and prevent rotten root instrument |
Publications (1)
Publication Number | Publication Date |
---|---|
CN220705165U true CN220705165U (en) | 2024-04-02 |
Family
ID=90445800
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202321497126.5U Active CN220705165U (en) | 2023-06-13 | 2023-06-13 | Adjustable post location and prevent rotten root instrument |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN220705165U (en) |
-
2023
- 2023-06-13 CN CN202321497126.5U patent/CN220705165U/en active Active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN102704672A (en) | Installation construction method for large all-steel formwork at internal corner of shear wall | |
CN210263390U (en) | Connecting structure of steel structure beam and upright post | |
CN109113190A (en) | A kind of detachable assembling type beam column of steel structure connection structure | |
CN110067383B (en) | Closely knit type composite form of construction beam column concrete placement | |
CN220705165U (en) | Adjustable post location and prevent rotten root instrument | |
CN209723217U (en) | A kind of quick splicing node suitable for all types of steel columns | |
JPH078722Y2 (en) | Formwork fixture | |
CN216920699U (en) | Door type steel frame system | |
CN210858229U (en) | Assembled precast concrete enclosure | |
CN212773558U (en) | Positioning device for sleeve connecting steel bar of assembled building conversion layer | |
CN215055417U (en) | Inserting sheet type concrete separator | |
CN109162371A (en) | A kind of fixed structure and its construction method of outer patch rubber fastening band | |
CN212670855U (en) | Assembly type building node connection structure | |
CN205558046U (en) | Bar reinforcement positioning device | |
CN113293707A (en) | Tool for adjusting linear shape of guardrail steel template, manufacturing method and using method | |
CN211447846U (en) | A locator for construction of reinforcing bar roof beam | |
CN216156380U (en) | Prefabricated bridge deck system pre-buried sleeve positioning device | |
CN219993080U (en) | Scaffold and wall connection structure | |
CN208830598U (en) | A kind of architectural engineering built pile | |
CN219863689U (en) | Tool for fixing vertical reinforcement of column | |
CN218990445U (en) | Novel large-span shaped steel skeleton | |
CN219992740U (en) | Steel constructs pre-buried bolt positioner | |
CN218204897U (en) | Connecting joint of wood structure beam and cast-in-place structure | |
CN218596844U (en) | Novel tree pool template | |
CN219261713U (en) | Combined pre-buried fixing piece of overhanging I-steel |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |