CN221150888U - Adjustable concealed tendon penetrating box - Google Patents
Adjustable concealed tendon penetrating box Download PDFInfo
- Publication number
- CN221150888U CN221150888U CN202322694025.3U CN202322694025U CN221150888U CN 221150888 U CN221150888 U CN 221150888U CN 202322694025 U CN202322694025 U CN 202322694025U CN 221150888 U CN221150888 U CN 221150888U
- Authority
- CN
- China
- Prior art keywords
- reinforcing
- box body
- rib
- penetrating
- box
- 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
- 230000000149 penetrating effect Effects 0.000 title claims abstract description 92
- 210000002435 tendon Anatomy 0.000 title claims description 21
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 99
- 238000007493 shaping process Methods 0.000 claims abstract description 22
- 210000001520 comb Anatomy 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 210000003205 muscle Anatomy 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 abstract description 13
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 239000011083 cement mortar Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
Landscapes
- Connection Or Junction Boxes (AREA)
Abstract
The utility model discloses an adjustable concealed rebar penetrating box, which comprises a rebar penetrating box main body and a reinforcing mechanism; the rib penetrating box main body comprises a box body, rib penetrating lugs, a nut mounting piece, a female lock catch, a male lock catch, a side cup comb and a lower cup comb; the reinforcing mechanism comprises a rib penetrating reinforcing part, reinforcing ribs, a reinforcing sleeve, reinforcing rib angles and a shaping seat, wherein the joint of the rib penetrating lug and the box body is connected with the rib penetrating reinforcing part, and the upper end and the lower end of the rib penetrating lug are connected with the reinforcing ribs along the extending direction of the rib penetrating lug; both ends of the rib penetrating lugs are connected with reinforcing sleeves; reinforcing rib angles are uniformly distributed at corners of the inner cavity of the box body, and a shaping seat is arranged at the bottom of the inner cavity of the box body. The scheme realizes the reinforcement function of the reinforcement through the reinforcement penetrating part, the reinforcement rib and the reinforcement sleeve, and improves the strength of the reinforcement penetrating lug; the strength of the box body is improved through the reinforcing rib angles and the shaping seat, and the compression resistance of the box body is improved; the connection strength of the main lock catch, the sub lock catch and the box body is improved through the lock catch reinforcing part, and the service life of the box body is prolonged.
Description
Technical Field
The utility model relates to the technical field of tendon penetrating boxes, in particular to an adjustable concealed tendon penetrating box.
Background
The reinforcement penetrating box is very important electrical equipment in the electrical assembly of the building field and is used for embedding before concrete is poured, and cable connection is carried out after the concrete pouring is completed. When the existing tendon penetrating box is used, as the box body is mostly of a simple rectangular box body structure, the strength of the box body is weaker, so that the box body is easy to crack and deform in the concrete vibrating process; the outer side wall of the box body is provided with a protruding structure such as a rib penetrating lug, a primary lock catch and the like, and when the box is used, the connection part with the box body is easy to break, so that the box body is difficult to normally use in function; moreover, when the existing rib penetrating box is used, sediment is easy to penetrate into the perforated position of the spool on the box body, so that abrasion of the spool is easy to cause, the space of the rib penetrating box is occupied, the use safety of the rib penetrating box is reduced, and the rib penetrating box needs to be improved.
Disclosure of utility model
This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the utility model and in the title of the utility model, which may not be used to limit the scope of the utility model.
Therefore, the utility model aims to solve the technical problem of insufficient service life of the existing product by providing the adjustable concealed tendon penetrating box.
In order to solve the technical problems, the utility model provides the following technical scheme: an adjustable concealed reinforcement penetrating box comprises a reinforcement penetrating box main body and a reinforcing mechanism;
The rib penetrating box main body comprises a box body, rib penetrating lugs, nut mounting pieces, female locks, sub-locks, side cup combs and lower cup combs, wherein the rib penetrating lugs are arranged on two sides of the box body, and the female locks and the sub-locks which are matched with each other are respectively arranged on the other two sides of the box body; nut mounting pieces are arranged on two sides of the top end of the inner cavity of the box body and are connected with the nuts through the nut mounting pieces; the lateral side walls of the two sides of the box body are connected with lateral cup combs, the bottom of the box body is connected with a lower cup comb, and the lateral cup combs, the lower cup comb and the box body are of an integrated structural design;
The reinforcing mechanism comprises a rib penetrating reinforcing part, reinforcing ribs, a reinforcing sleeve, reinforcing rib angles and a shaping seat, wherein the joint of the rib penetrating lug and the box body is connected with the rib penetrating reinforcing part, and the upper end and the lower end of the rib penetrating lug are connected with the reinforcing ribs along the extending direction of the rib penetrating lug; the two ends of the rib penetrating lugs are connected with reinforcing sleeves, the reinforcing sleeves are sleeved on the outer sides of the rib penetrating lugs, and the end parts of the reinforcing sleeves are in fit connection with the outer side walls of the box body; reinforcing rib angles are uniformly distributed at the corners of the periphery of the inner cavity of the box body, a shaping seat is arranged at the bottom of the inner cavity of the box body, and the shaping seat is arranged at the corners of the periphery of the box body.
As a preferable scheme of the adjustable concealed installation tendon penetrating box, the utility model comprises the following steps: the reinforcing mechanism further comprises a lock catch reinforcing part, wherein the lock catch reinforcing parts are arranged at the joints of the sub lock catches and the box body, and the lock catch reinforcing parts, the box body, the sub lock catches and the main lock catches are of an integrated structure; the main lock catch is provided with a lock catch groove matched with the sub lock catch, and the sub lock catch is clamped in the main lock catch.
As a preferable scheme of the adjustable concealed installation tendon penetrating box, the utility model comprises the following steps: the reinforcing part and the lock catch reinforcing part are of concave arc structures and are attached to the outer side wall of the box body, the reinforcing part and the lug are of an integrated structure, and the lug is provided with a lug penetrating hole which is convenient for a reinforcing steel bar to penetrate through.
As a preferable scheme of the adjustable concealed installation tendon penetrating box, the utility model comprises the following steps: the cross section of the reinforcing rib is in a right triangle structure, and two right-angle planes of the reinforcing rib are respectively connected with the surfaces of the rib penetrating hanging lugs and the box body.
As a preferable scheme of the adjustable concealed installation tendon penetrating box, the utility model comprises the following steps: the cross sections of the reinforcing rib angles and the shaping seat are all in isosceles triangle structures, the equilateral end surfaces of the two sides of the reinforcing rib angles are connected with the inner cavity wall of the box body, and the two sides and the bottom of the shaping seat are all in integral structural design with the box body.
As a preferable scheme of the adjustable concealed installation tendon penetrating box, the utility model comprises the following steps: the reinforcing sleeve, the box body and the rib penetrating lugs are of an integrated structural design, and the reinforcing ribs are arranged on the rib penetrating lugs between the two groups of reinforcing sleeves.
The utility model has the beneficial effects that:
1. According to the adjustable concealed rib penetrating box provided by the utility model, the rib penetrating box is provided with the integrated lower cup comb and the integrated side cup comb, so that cement sand can be prevented from entering a cable threading hole on the rib penetrating box when a cement mortar supplementing groove is formed, meanwhile, the penetrated wire pipe can be protected, the abrasion of the wire pipe is reduced, and the service life of the wire pipe is prolonged; later stage accessible processing cup comb of different wall thicknesses realizes the regulation to the protective structure thickness of bobbin, satisfies multiple user demand.
2. According to the adjustable concealed rib penetrating box provided by the utility model, the reinforcing mechanism is additionally arranged on the rib penetrating box, and can realize the reinforcing function of the rib penetrating lug through the rib penetrating reinforcing part, the rib penetrating rib and the reinforcing sleeve, so that the strength of the rib penetrating lug is improved, and the conditions of fracture and deformation in the later period are avoided; the strength of the box body is improved through the reinforcing rib angle and the shaping seat, the compression resistance of the box body is improved, and the situation that the corners of the box body are broken or deformed is avoided; the connection strength of the main lock catch, the sub lock catch and the box body is improved through the lock catch reinforcing part, and the service life of the box body is prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
fig. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is a schematic bottom view of the present utility model.
Fig. 3 is a schematic top view of the present utility model.
Fig. 4 is a schematic side view of the present utility model.
In the figure: 100. a tendon passing box main body; 101. a case body; 102. penetrating the rib lugs; 1021. penetrating the rib holes; 103. a nut mounting piece; 104. a female lock catch; 1041. a latch groove; 105. a sub-lock catch; 106. a side cup comb; 107. a lower cup comb;
200. a reinforcing mechanism; 201. a reinforcement part for penetrating the rib; 202. reinforcing ribs; 203. a reinforcing sleeve; 204. reinforcing rib angles; 205. shaping the base; 206. a latch reinforcement.
Detailed Description
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Further, in describing the embodiments of the present utility model in detail, the cross-sectional view of the device structure is not partially enlarged to a general scale for convenience of description, and the schematic is only an example, which should not limit the scope of protection of the present utility model. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.
Example 1
Referring to fig. 1, for a first embodiment of the present utility model, an adjustable concealed installation tendon passing box is provided, the structure includes a tendon passing box main body 100 and a reinforcing mechanism 200;
The rib penetrating box main body 100 comprises a box body 101, rib penetrating lugs 102, nut mounting pieces 103, female locks 104, sub-locks 105, side cup combs 106 and lower cup combs 107, wherein the rib penetrating lugs 102 are arranged on two sides of the box body 101, the female locks 104 and the sub-locks 105 which are matched with each other are respectively arranged on the other two sides of the box body 101, and rib penetrating holes 1021 which are convenient for steel bars to penetrate are formed in the rib penetrating lugs 102; the distance between the upper surface of the rib penetrating lug 102 and the upper surface of the box body 101 can reach 30mm, so that the neck length of the box body can be increased, and the mold stripping rate is increased.
Nut mounting pieces 103 are arranged on two sides of the top end of the inner cavity of the box body 101, and are connected with nuts through the nut mounting pieces 103; a lock catch groove 1041 matched with the sub lock catch 105 is formed in the main lock catch 104, and the sub lock catch 105 is clamped in the main lock catch 104; the lateral side walls of the two sides of the box body 101 are connected with lateral cup combs 106, and the lateral cup combs 106 and the box body 101 are of an integrated structural design; the bottom of the box body 101 is connected with a lower cup comb 107 for adjusting the thickness of the box body 101.
In this embodiment: when the tendon passing box is in actual use, the position of the box body 101 is determined according to the line incoming direction, nuts are mounted on the nut mounting pieces 103, and the box body 101 is filled with filler; two pre-buried box bodies 101 are assembled with a main lock catch 104 through a sub lock catch 105; and determining the position of the box body 101 on the concrete wall surface, enabling the steel bars to pass through the steel bar penetrating holes 1021 on the steel bar penetrating lugs 102, and binding the steel bars on the box body 101 with the structural steel bars on the shear wall or column firmly by using binding wires.
After the box body 101 is fixed, the wire tube is connected through the side cup comb 106 and the lower cup comb 107, and the integrated lower cup comb 107 and the side cup comb 106 arranged on the reinforcement box main body 100 can prevent cement sand from entering the cable threading hole on the reinforcement box main body 100 when the cement mortar is in a wire supplementing slot, and meanwhile, the wire tube can be protected, the abrasion of the wire tube is reduced, the service life of the wire tube is prolonged, and the use safety of the box body 101 is guaranteed.
Example 2
Referring to fig. 2, 3 and 4, a second embodiment of the present utility model is different from the first embodiment in that: the reinforcing mechanism 200 comprises a rib penetrating reinforcing part 201, a reinforcing rib 202, a reinforcing sleeve 203, a reinforcing rib corner 204, a shaping seat 205 and a lock catch reinforcing part 206, wherein the joint of the rib penetrating lug 102 and the box body 101 is connected with the rib penetrating reinforcing part 201, and the upper end and the lower end of the rib penetrating lug 102 are connected with the reinforcing rib 202 along the extending direction; the cross section of the reinforcing rib 202 is in a right triangle structure, and two right-angle planes of the reinforcing rib 202 are respectively connected with the penetrating rib hanging lugs and the surface of the box body 101.
The both ends of wearing the muscle ear 102 all are connected with the enhancement cover 203, and the outside at wearing the muscle ear 102 is cup jointed to the enhancement cover 203, and the tip of enhancement cover 203 is connected with the lateral wall laminating of box body 101, the enhancement cover 203 is integrated with box body 101, wearing the muscle ear 102 and is structural design, and the enhancement rib 202 is arranged on wearing the muscle ear 102 between two sets of enhancement covers 203.
Reinforcing rib corners 204 are uniformly arranged at the peripheral corners of the inner cavity of the box body 101, a shaping seat 205 is arranged at the bottom of the inner cavity of the box body 101, and the shaping seat 205 is arranged at the peripheral corners of the box body 101; the cross sections of the reinforcing rib angles 204 and the shaping seat 205 are all in isosceles triangle structures, the equilateral end surfaces of the two sides of the reinforcing rib angles 204 are connected with the inner cavity wall of the box body 101, and the two sides and the bottom of the shaping seat 205 are all in an integrated structural design with the box body 101.
The connection parts of the sub lock catch 105 and the main lock catch 104 and the box body 101 are respectively provided with a lock catch reinforcing part 206, and the lock catch reinforcing parts 206, the box body 101, the sub lock catch 105 and the main lock catch 104 are of an integrated structure; the rib penetrating reinforcing part 201 and the lock catch reinforcing part 206 are both of concave arc structures and are attached to the outer side wall of the box body 101, and the rib penetrating reinforcing part 201 and the rib penetrating lug 102 are of an integrated structure.
The rest of the structure is the same as that of embodiment 1.
In this embodiment: because this scheme has reinforcing mechanism 200 on wearing the muscle box main part 100 for when using, wear muscle reinforcing part 201, strengthening rib 202 and enhancement cover 203 can realize strengthening function to wearing the muscle ear 102, improve its self intensity, when wearing the muscle ear 102 and receive the pressure of its inside reinforcing bar or surrounding concrete layer, can avoid the later stage to appear the circumstances of fracture, deformation.
Because the reinforcing rib angles 204 and the shaping seats 205 are arranged at the corners in the box body 101, the reinforcing rib angles 204 and the shaping seats 205 can be abutted against the peripheral side walls of the box body 101, the strength of the box body 101 is improved, the compression resistance of the box body is improved, the deformation of the box body 101 during concrete vibration is avoided, and the breakage or deformation of the corners of the box body 101 is avoided; the connection area of the main lock catch 104, the sub lock catch 103 and the box body 101 is increased through the lock catch reinforcing part 206, the compressive strength is improved, and the service life is prolonged.
It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.
Claims (6)
1. An adjustable concealed installation wears muscle box, its characterized in that: comprises a tendon penetrating box main body (100) and a reinforcing mechanism (200);
The rib penetrating box main body (100) comprises a box body (101), rib penetrating lugs (102), nut mounting plates (103), female locks (104), sub-locks (105), side cup combs (106) and lower cup combs (107), wherein the rib penetrating lugs (102) are arranged on two sides of the box body (101), and the female locks (104) and the sub-locks (105) which are matched with each other are respectively arranged on the other two sides; nut mounting pieces (103) are arranged on two sides of the top end of the inner cavity of the box body (101), and the box body is connected with a nut through the nut mounting pieces (103); the lateral cup combs (106) are connected to the outer side walls of the two sides of the box body (101), the bottom of the box body (101) is connected with the lower cup comb (107), and the lateral cup combs (106), the lower cup comb (107) and the box body (101) are of an integrated structural design;
The reinforcing mechanism (200) comprises a rib penetrating reinforcing part (201), reinforcing ribs (202), reinforcing sleeves (203), reinforcing rib angles (204) and a shaping seat (205), wherein the rib penetrating reinforcing part (201) is connected to the joint of the rib penetrating lug (102) and the box body (101), and the reinforcing ribs (202) are connected to the upper end and the lower end of the rib penetrating lug (102) along the extending direction of the rib penetrating lug; the two ends of the rib penetrating lugs (102) are connected with reinforcing sleeves (203), the reinforcing sleeves (203) are sleeved on the outer sides of the rib penetrating lugs (102), and the end parts of the reinforcing sleeves (203) are in fit connection with the outer side walls of the box body (101); reinforcing rib corners (204) are uniformly arranged at the peripheral corners of the inner cavity of the box body (101), a shaping seat (205) is arranged at the bottom of the inner cavity of the box body (101), and the shaping seat (205) is arranged at the peripheral corners of the box body (101).
2. The adjustable concealed installation tendon passing box as claimed in claim 1, wherein: the reinforcing mechanism (200) further comprises a lock catch reinforcing part (206), wherein the lock catch reinforcing parts (206) are arranged at the connecting parts of the sub lock catches (105), the main lock catches (104) and the box body (101), and the lock catch reinforcing parts (206) are of an integrated structure with the box body (101), the sub lock catches (105) and the main lock catches (104); the main lock catch (104) is provided with a lock catch groove (1041) matched with the sub lock catch (105), and the sub lock catch (105) is clamped in the main lock catch (104).
3. An adjustable concealed installation tendon passing box as claimed in claim 1 or 2, wherein: the steel bar penetrating reinforcing part (201) and the lock catch reinforcing part (206) are both of concave arc structures and are attached to the outer side wall of the box body (101), the steel bar penetrating reinforcing part (201) and the steel bar penetrating lug (102) are of an integrated structure, and steel bar penetrating holes (1021) which are convenient for steel bars to penetrate are formed in the steel bar penetrating lug (102).
4. The adjustable concealed installation tendon passing box as claimed in claim 1, wherein: the cross section of the reinforcing rib (202) is in a right triangle structure, and two right-angle planes of the reinforcing rib (202) are respectively connected with the surfaces of the rib penetrating lugs and the box body (101).
5. The adjustable concealed installation tendon passing box as claimed in claim 1, wherein: the cross sections of the reinforcing rib angle (204) and the shaping seat (205) are of isosceles triangle structures, the equilateral end surfaces of the two sides of the reinforcing rib angle (204) are connected with the inner cavity wall of the box body (101), and the two sides and the bottom of the shaping seat (205) are of an integrated structural design with the box body (101).
6. The adjustable concealed installation tendon passing box as claimed in claim 1, wherein: the reinforcing sleeve (203), the box body (101) and the rib penetrating lugs (102) are of an integrated structural design, and the reinforcing ribs (202) are arranged on the rib penetrating lugs (102) between the two groups of reinforcing sleeves (203).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322694025.3U CN221150888U (en) | 2023-10-09 | 2023-10-09 | Adjustable concealed tendon penetrating box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322694025.3U CN221150888U (en) | 2023-10-09 | 2023-10-09 | Adjustable concealed tendon penetrating box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221150888U true CN221150888U (en) | 2024-06-14 |
Family
ID=91389276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322694025.3U Active CN221150888U (en) | 2023-10-09 | 2023-10-09 | Adjustable concealed tendon penetrating box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221150888U (en) |
-
2023
- 2023-10-09 CN CN202322694025.3U patent/CN221150888U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5995788B2 (en) | Precast concrete floor slab connection structure | |
| CN221150888U (en) | Adjustable concealed tendon penetrating box | |
| JP3987875B1 (en) | Sleeper structure and sleeper structure manufacturing method | |
| KR101617247B1 (en) | Steel Fiber Rreinforced Telegraph Pole And Production Method Thereof | |
| CN109339247A (en) | A kind of split type built-in fitting of precast stair and its application method | |
| KR200461661Y1 (en) | Fixing structure for handrail | |
| CN202658777U (en) | Cast-in-place reinforced-concrete hollow floor | |
| CN210507820U (en) | Newly-built archaize building timber structure wall post connecting device | |
| CN107968369A (en) | A kind of pre-buried wire box of construction | |
| CN107119922A (en) | Support component for pre-stress floor post-cast strip stretching end | |
| CN106437150A (en) | Fixing device for preventing flotation of reinforcing steel bars in reinforced concrete | |
| KR101808058B1 (en) | Coupling beam of coupled shear wall to increase strength of the anchorage | |
| CN206233414U (en) | A kind of connecting sewing constructing structure of shear wall and Concrete Filled wall | |
| CN211075611U (en) | Basalt fiber composite concrete contact net support | |
| EP2909392A1 (en) | An anchor arrangement | |
| CN211058129U (en) | Assembled building reinforced concrete member | |
| CN102720305B (en) | Anti-floating retention structure | |
| JP4174613B2 (en) | Prestressed concrete tread manufacturing method | |
| CN207344806U (en) | Assembled architecture wallboard is with die assembly and assembled architecture wallboard mould | |
| CN206844714U (en) | Pre-stress floor post-cast strip stretching end support member | |
| CN210369307U (en) | Plug-in connection structure of precast concrete member | |
| CN101736859A (en) | Reinforced concrete hollow column | |
| CN219563752U (en) | Chiseling structure | |
| CN108457483A (en) | A kind of multifunctional universal pre-embedded device and application method | |
| CN214994708U (en) | Embedded structure of station construction site embedded part |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |