CN220226941U - A prestressing force stock for engineering is last - Google Patents
A prestressing force stock for engineering is last Download PDFInfo
- Publication number
- CN220226941U CN220226941U CN202321997458.XU CN202321997458U CN220226941U CN 220226941 U CN220226941 U CN 220226941U CN 202321997458 U CN202321997458 U CN 202321997458U CN 220226941 U CN220226941 U CN 220226941U
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- grouting
- rod body
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- cavity
- anchor
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- 238000007599 discharging Methods 0.000 claims description 18
- 230000009471 action Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 125000006850 spacer group Chemical group 0.000 claims 1
- 238000009434 installation Methods 0.000 description 14
- 239000011435 rock Substances 0.000 description 5
- 239000013307 optical fiber Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to the technical field of anchor rods, in particular to a prestressed anchor rod used in engineering. Comprising the following steps: the anchor rod comprises an anchor rod body, wherein the anchor rod body comprises a polished rod part and a screw rod part, a cavity is arranged in the anchor rod body, and an opening of the cavity is positioned at the end side of the polished rod part; the fixing part is arranged at the polish rod part and is suitable for fixing the anchor rod body in the pre-buried hole; the grouting part is arranged on the anchor rod body and is suitable for grouting the embedded hole; the positioning part is arranged on the polish rod part and the grouting part and is suitable for controlling the grouting of the grouting part to the embedded hole so as to prevent the prestressed anchor rod from being blocked by sundries; and the anti-slip part is arranged at the screw part and is suitable for preventing the anchor rod body from sliding in the embedded hole.
Description
Technical Field
The utility model relates to the technical field of anchor rods, in particular to a prestressed anchor rod used in engineering.
Background
The anchor rod is the most basic component part of roadway support in contemporary coal mines, and reinforces surrounding rocks of the roadway together so that the surrounding rocks are supported. The anchor rod is not only used for mines, but also used in engineering technology for main reinforcement of slopes, tunnels and dams. The anchor rod is used as one of the main support forms of underground engineering and rock slopes, plays an important role in maintaining the stability of civil engineering, and particularly has obvious reinforcement effect on rock mass in joint fracture rock mass.
In the process of penetrating into the embedded holes, the position of a grouting outlet of the common anchor rod in the market can be blocked by sundries such as soil, and the like, so that insufficient filling is easily caused by blocking during grouting.
Disclosure of Invention
The present utility model is therefore directed to overcoming the technical problems required in the prior art and providing a prestressed anchor rod for engineering that prevents clogging.
The utility model provides a prestressed anchor rod used in engineering, which is used for grouting in a pre-buried hole and comprises the following steps: the anchor rod comprises an anchor rod body, wherein the anchor rod body comprises a polished rod part and a screw rod part, a cavity is arranged in the anchor rod body, and an opening of the cavity is positioned at the end side of the polished rod part; the fixing part is arranged at the polish rod part and is suitable for fixing the anchor rod body in the pre-buried hole; the grouting part is arranged on the anchor rod body and is suitable for grouting the embedded hole; the positioning part is arranged on the polish rod part and the grouting part and is suitable for controlling the grouting of the grouting part to the embedded hole so as to prevent the prestressed anchor rod from being blocked by sundries; and the anti-slip part is arranged at the screw part and is suitable for preventing the anchor rod body from sliding in the embedded hole.
Further, the fixing portion includes: the installation seat is arranged at the joint of the polish rod part and the screw rod part, the polish rod part penetrates through the installation seat, an installation hole is formed in the installation seat, and the installation seat is fixedly arranged on the embedded hole through the installation hole; the thread sleeve is arranged on the polish rod part, and threads which are in threaded connection with the thread sleeve are arranged on the polish rod part; the fixed plate is arranged between the mounting seat and the threaded sleeve and is fixedly connected with the threaded sleeve, and the polish rod part penetrates through the fixed plate;
the connecting components are in multiple groups and are arranged on the fixed plate; the connecting component is suitable for fixedly connecting the fixed plate with the mounting seat, so that the anchor rod body is fixedly connected with the embedded hole.
Further, the connection assembly includes: the first bolt hole is arranged on the fixed plate; the second bolt hole is arranged on the mounting seat, and the second bolt hole is opposite to the first bolt hole; the connecting bolt is in threaded connection with the first bolt hole; the spring is sleeved on the outer side of the connecting bolt; the gasket is arranged between the nut of the connecting bolt and the spring; the connecting bolt is screwed under the action of external force and is in threaded connection with the second bolt hole, so that the fixing plate is fixedly connected with the mounting seat.
Further, the grouting portion includes: the grouting rod is arranged in the cavity, and one end of the grouting rod extends out of the opening of the cavity, which is positioned at the polish rod part; the discharging channel is arranged at the screw part, is matched with the grouting rod and is communicated with the pre-buried hole; during grouting, materials enter a discharge channel through a grouting rod and are irrigated into the pre-buried holes.
Further, the grouting rod includes: the grouting rod body is arranged in the cavity, and one end of the grouting rod body extends out of the opening of the cavity, which is positioned at the polish rod part; the grouting cavity is arranged in the grouting rod body, and an opening of the grouting cavity is arranged at one end, close to the polish rod, of the grouting rod body; the flow guide channel is arranged on the grouting rod body, one end of the flow guide channel is communicated with the grouting cavity and is matched with the discharging channel; the grouting rod body is rotatably connected with the cavity, and has a conducting state and a closing state when rotating in the cavity; when the grouting rod body is in a conducting state, the discharging channel is communicated with the diversion channel; when the grouting rod body is in a closed state, the discharging channel is not communicated with the diversion channel.
Further, the positioning portion includes: the fixed disc is fixedly arranged at the end side of the polish rod part; the positioning mark is arranged on the circumferential surface of the fixed disc; the rotary disc is fixedly arranged on the end side, close to the polish rod, of the grouting rod body; an index disposed on the circumferential surface of the rotating disk; rotating the rotary disk under the action of external force, and when the index is aligned with the locating mark, communicating the discharge channel with the diversion channel, wherein the grouting rod body is in a conducting state; when the index is not aligned with the positioning index, the discharging channel is not communicated with the diversion channel, and the grouting rod body is in a closed state.
Further, a grouting opening is formed in the rotating disc and communicated with the grouting cavity.
Further, the anti-slip part includes: the sleeve is arranged on the screw rod part, and the end side of the screw rod part is in threaded connection with the sleeve; the anti-skid column is arranged outside the sleeve and is arranged at one end of the sleeve, which is far away from the screw rod part; the anti-slip strip is arranged on the side wall of the anti-slip column; the anti-skid column and the anti-skid strip are arranged in the embedded hole and are suitable for anti-skid of the anchor rod body.
The technical scheme of the utility model has the following advantages:
the utility model provides an engineering prestress anchor rod, wherein a fixing part is suitable for fixing an anchor rod body in a pre-buried hole; the grouting part is suitable for grouting the embedded hole; the positioning part is suitable for controlling the grouting of the grouting part to the embedded hole and preventing the prestressed anchor rod from being blocked by sundries; the anti-slip part is suitable for preventing the anchor rod body from sliding in the embedded hole.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the structure of the fixing portion and the positioning portion of the present utility model;
fig. 3 is a schematic view of the structure of the anti-slip part of the present utility model.
Reference numerals illustrate;
10. an anchor body; 11. a polish rod portion; 12. a screw portion; 13. a cavity; 20. a fixing part; 21. a mounting base; 22. a mounting hole; 23. a thread sleeve; 24. a fixing plate; 25. a connection assembly; 251. a first bolt hole; 252. a second bolt hole; 253. a connecting bolt; 254. a spring; 255. a gasket; 30. a grouting part; 31. grouting rods; 311. a grouting rod body; 312. grouting cavities; 313. a diversion channel; 32. a discharge channel; 40. a positioning part; 41. a fixed plate; 42. positioning marks; 43. a rotating disc; 44. an index; 45. a grouting port; 50. an anti-slip part; 51. a sleeve; 52. an anti-skid column; 53. an anti-slip strip.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of 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 should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
Examples
An embodiment of a prestressed anchor for engineering as shown in fig. 1 to 3, wherein the screw portion 12 of fig. 1 includes a schematic cross-sectional view of a grouting portion 30, the prestressed anchor for engineering for grouting in a pre-buried hole, comprising: the anchor rod body 10, wherein the anchor rod body 10 comprises a polished rod part 11 and a screw rod part 12, a cavity 13 is arranged in the anchor rod body 10, and an opening of the cavity 13 is positioned at the end side of the polished rod part 11; the fixing part 20 is arranged on the polish rod part 11 and is suitable for fixing the anchor rod body 10 in the pre-buried hole; the grouting part 30 is arranged on the anchor rod body 10 and is suitable for grouting the embedded hole; the positioning part 40 is arranged on the polish rod part 11 and the grouting part 30, and is suitable for controlling the grouting of the grouting part 30 to the pre-buried hole so as to prevent the pre-stressed anchor rod from being blocked by sundries; and an anti-slip part 50 provided at the screw portion 12 and adapted to prevent the anchor body 10 from sliding in the pre-buried hole.
Specifically, in the embodiment of the present utility model, the positioning portion 40 may adjust the state of the grouting portion 30, so as to control the grouting of the grouting portion 30, and for the positioning portion 40, for example, the positioning portion 40 may be two optical fiber sensors and an electromagnetic valve, which are disposed in the grouting portion 30, the two optical fiber sensors detect whether the grouting portion 30 is in a grouting state, and the electromagnetic valve controls the grouting of the grouting portion 30, and when the two optical fiber sensors detect that the grouting portion 30 is in a grouting state, the electromagnetic valve is controlled to be opened, so that the grouting portion 30 can be smoothly grouted. Of course, the present embodiment is merely illustrative of a specific embodiment of the positioning portion 40, but is not limited thereto, and those skilled in the art may change the embodiment according to actual circumstances, and may achieve the same technical effects.
Further, the fixing portion 20 includes: the installation seat 21 is arranged at the joint of the polish rod part 11 and the screw rod part 12, the polish rod part 11 penetrates through the installation seat 21, an installation hole 22 is formed in the installation seat 21, and the installation seat 21 is fixedly arranged on the pre-buried hole through the installation hole 22; the thread sleeve 23 is arranged on the polish rod part 11, and threads which are in threaded connection with the thread sleeve 23 are arranged on the polish rod part 11; the fixed plate 24 is arranged between the mounting seat 21 and the threaded sleeve 23 and is fixedly connected with the threaded sleeve 23, and the polish rod part 11 penetrates through the fixed plate 24; the connecting components 25 are arranged on the fixed plate 24 in a plurality of groups; the connecting assembly 25 is suitable for fixedly connecting the fixing plate 24 with the mounting seat 21, so that the anchor rod body 10 is fixedly connected with the embedded hole.
It should be noted that the installation hole 22 and the pre-buried hole may be connected by a rope, or the installation hole 22 and the pre-buried hole may be connected by a fixing bolt or a screw, which is not limited in this embodiment. The fixing portion 20 is fixedly connected with the anchor body 10 and the connecting component 25, the connecting component 25 can be fixedly connected with the mounting seat 21 under the action of external force, and the mounting hole 22 is connected with the embedded hole, so that the anchor body 10 is fixedly arranged in the embedded hole.
Further, the connection assembly 25 includes: a first bolt hole 251 provided on the fixing plate 24; a second bolt hole 252 provided in the mount 21, the second bolt hole 252 being provided opposite to the first bolt hole 251; the connecting bolt 253 is screwed in the first bolt hole 251; a spring 254 sleeved outside the connecting bolt 253; a washer 255 disposed between the nut of the connection bolt 253 and the spring 254; the connecting bolt 253 is screwed under the action of external force, and the connecting bolt 253 is screwed in the second bolt hole 252, so that the fixing plate 24 is fixedly connected with the mounting seat 21.
It should be noted that, when the connecting bolt 253 is screwed, the connecting bolt 253 can be screwed into the second bolt hole 252, so as to play a role in fixedly connecting the fixing plate 24 with the mounting seat 21, and when the connecting bolt 253 is screwed continuously, the fixing plate 24 and the mounting seat 21 are close to each other as much as possible or are directly clung to each other, at this time, the spring 254 is in a compressed spring state, and it can be seen that the spring 254 applies a pulling force to the connecting bolt 253, so that the connecting bolt 253 is not easy to loosen with the first bolt hole 251 and the second bolt hole 252.
Further, the grouting portion 30 includes: a grouting rod 31 arranged in the cavity 13, wherein one end of the grouting rod 31 extends out of the cavity 13 and is positioned at the opening of the polish rod part 11; the discharging channel 32 is arranged on the screw part 12, is matched with the grouting rod 31 and is communicated with the pre-buried hole; during grouting, materials enter the discharge channel 32 through the grouting rod 31 and are irrigated into the pre-buried holes.
Further, the grouting rod 31 includes: the grouting rod body 311 is arranged in the cavity 13, and one end of the grouting rod body 311 extends out of the cavity 13 and is positioned at the opening of the polish rod part 11; a grouting cavity 312, which is arranged in the grouting rod body 311, wherein an opening of the grouting cavity 312 is arranged at one end of the grouting rod body 311, which is close to the polish rod part 11; the guide channel 313 is arranged on the grouting rod body 311, and one end of the guide channel 313 is communicated with the grouting cavity 312 and is matched with the discharging channel 32; the grouting rod body 311 is rotatably connected with the cavity 13, and when the grouting rod body 311 rotates in the cavity 13, the grouting rod body 311 has a conducting state and a closing state; when the grouting rod body 311 is in a conducting state, the discharging channel 32 is communicated with the diversion channel 313; when the grouting rod body 311 is in a closed state, the discharging channel 32 is not communicated with the diversion channel 313.
It should be noted that, one end of the guide channel 313 is communicated with the grouting cavity 312, the other end is communicated with the outer surface of the grouting rod body 311, one end of the discharge channel 32 is communicated with the pre-buried hole, the other end is communicated with the outer surface of the grouting rod body 311, the guide channel 313 and the discharge channel 32 can be multiple, and the guide channel 313 and the discharge channel 32 are oppositely arranged. When the prestressed anchor rod is vertically used in use, under the action of gravity, when the grouting rod body 311 rotates in the cavity 13, the grouting rod body 311 and the cavity 13 cannot axially relatively displace, and the flow guide channel 313 and the discharge channel 32 are communicated or not.
Further, the positioning portion 40 includes: a fixed plate 41 fixedly provided on the end side of the polish rod portion 11; a positioning mark 42 provided on the circumferential surface of the fixed disk 41; a rotary disk 43 fixedly provided on the grouting rod body 311 on an end side close to the polish rod portion 11; an index 44 provided on the circumferential surface of the rotary disk 43; rotating the rotary disk 43 under the action of external force, when the index 44 is aligned with the positioning index 42, the discharging channel 32 is communicated with the diversion channel 313, and the grouting rod body 311 is in a conducting state; when the index 44 is not aligned with the positioning index 42, the discharge channel 32 is not communicated with the diversion channel 313, and the grouting rod body 311 is in a closed state.
It should be noted that, when the grouting rod body 311 is in the closed state, the prestressed anchor rod may be disposed in the pre-buried hole, and at this time, since the discharging channel 32 is not communicated with the diversion channel 313, impurities such as soil may be prevented from blocking the discharging channel 32, and thus the grouting cavity 312 may be blocked. When the grouting rod body 311 is in a conducting state, grouting can be performed through the grouting rod body 311. In addition, when the grouting is stopped, the grouting rod body 311 should also be in a closed state.
Further, a grouting opening 45 is provided on the rotating disk 43, and the grouting opening 45 is communicated with the grouting cavity 312.
Further, the anti-slip part 50 includes: a sleeve 51 provided on the screw portion 12, an end side of the screw portion 12 being screwed into the sleeve 51; a spool 52 disposed outside the sleeve 51, the spool 52 being disposed on the sleeve 51 at an end thereof remote from the screw portion 12; a cleat 53 provided on a side wall of the cleat 52; the anti-slip column 52 and the anti-slip strip 53 are arranged in the embedded hole and are suitable for anti-slip of the anchor rod body 10.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.
Claims (8)
1. A prestressed anchor rod for engineering, for grouting in a pre-buried hole, comprising:
the novel anchor rod comprises an anchor rod body (10), wherein the anchor rod body (10) comprises a polished rod part (11) and a screw rod part (12), a cavity (13) is arranged in the anchor rod body (10), and an opening of the cavity (13) is positioned at the end side of the polished rod part (11);
the fixing part (20) is arranged on the polish rod part (11) and is suitable for fixing the anchor rod body (10) in the embedded hole;
the grouting part (30) is arranged on the anchor rod body (10) and is suitable for grouting the embedded hole;
the positioning part (40) is arranged on the polish rod part (11) and the grouting part (30) and is suitable for controlling the grouting of the grouting part (30) to the embedded hole so as to prevent the prestressed anchor rod from being blocked by sundries;
and the anti-skid part (50) is arranged on the screw rod part (12) and is suitable for preventing the anchor rod body (10) from sliding in the embedded hole.
2. A prestressed anchor for engineering according to claim 1, characterized in that said fixing portion (20) comprises:
the mounting seat (21) is arranged at the joint of the polish rod part (11) and the screw rod part (12), the polish rod part (11) penetrates through the mounting seat (21), a mounting hole (22) is formed in the mounting seat (21), and the mounting seat (21) is fixedly arranged on the pre-buried hole through the mounting hole (22);
the thread sleeve (23) is arranged on the polish rod part (11), and threads which are in threaded connection with the thread sleeve (23) are arranged on the polish rod part (11);
the fixed plate (24) is arranged between the mounting seat (21) and the threaded sleeve (23) and is fixedly connected with the threaded sleeve (23), and the polish rod part (11) penetrates through the fixed plate (24);
the connecting components (25) are arranged on the fixed plate (24) in a plurality of groups;
the connecting assembly (25) is suitable for fixedly connecting the fixing plate (24) with the mounting seat (21) so that the anchor rod body (10) is fixedly connected with the embedded hole.
3. A prestressed anchor for engineering according to claim 2, characterized in that said connection assembly (25) comprises:
a first bolt hole (251) provided in the fixing plate (24);
a second bolt hole (252) provided on the mounting seat (21), the second bolt hole (252) being provided opposite to the first bolt hole (251);
the connecting bolt (253) is screwed in the first bolt hole (251);
the spring (254) is sleeved on the outer side of the connecting bolt (253);
a spacer (255) disposed between the nut of the connecting bolt (253) and the spring (254);
the connecting bolt (253) is screwed under the action of external force, and the connecting bolt (253) is screwed in the second bolt hole (252) so that the fixing plate (24) is fixedly connected with the mounting seat (21).
4. A prestressed anchor for engineering according to claim 1, wherein said grouting portion (30) includes:
the grouting rod (31) is arranged in the cavity (13), and one end of the grouting rod (31) extends out of the opening of the cavity (13) positioned in the polish rod part (11);
the discharging channel (32) is arranged on the screw rod part (12), is matched with the grouting rod (31) and is communicated with the pre-buried hole;
during grouting, materials enter a discharge channel (32) through a grouting rod (31) and are irrigated into the pre-buried holes.
5. A prestressed anchor for engineering according to claim 4, wherein said grouting bar (31) comprises:
the grouting rod body (311) is arranged in the cavity (13), and one end of the grouting rod body (311) extends out of the cavity (13) and is positioned at the opening of the polish rod part (11);
the grouting cavity (312) is arranged in the grouting rod body (311), and an opening of the grouting cavity (312) is arranged at one end, close to the polish rod part (11), of the grouting rod body (311);
the guide channel (313) is arranged on the grouting rod body (311), and one end of the guide channel (313) is communicated with the grouting cavity (312) and is matched with the discharging channel (32);
the grouting rod body (311) is rotatably connected with the cavity (13), and when the grouting rod body (311) rotates in the cavity (13), the grouting rod body (311) has a conducting state and a closing state;
when the grouting rod body (311) is in a conducting state, the discharging channel (32) is communicated with the diversion channel (313);
when the grouting rod body (311) is in a closed state, the discharging channel (32) is not communicated with the diversion channel (313).
6. A prestressed anchor for engineering according to claim 5, wherein said positioning portion (40) includes:
a fixed disk (41) fixedly arranged at the end side of the polish rod part (11);
the locating mark (42) is arranged on the circumferential surface of the fixed disc (41);
the rotary disc (43) is fixedly arranged on the end side, close to the polish rod part (11), of the grouting rod body (311);
an index (44) provided on the circumferential surface of the rotary disk (43);
rotating the rotary disc (43) under the action of external force, when the index (44) is aligned with the locating mark (42), the discharging channel (32) is communicated with the diversion channel (313), and the grouting rod body (311) is in a conducting state; when the index (44) is not aligned with the locating mark (42), the discharging channel (32) is not communicated with the diversion channel (313), and the grouting rod body (311) is in a closed state.
7. A prestressed anchor for engineering according to claim 6, characterized in that the rotary disc (43) is provided with a grouting opening (45), said grouting opening (45) being in communication with the grouting cavity (312).
8. A prestressed anchor for engineering according to claim 1, characterized in that said anti-slip portion (50) comprises:
a sleeve (51) provided on the screw portion (12), the end side of the screw portion (12) being screwed into the sleeve (51);
a spool (52) disposed outside the sleeve (51), the spool (52) being disposed on the sleeve (51) at an end thereof remote from the screw portion (12);
a cleat (53) provided on the side wall of the cleat (52);
the anti-skid column (52) and the anti-skid strip (53) are arranged in the embedded hole and are suitable for anti-skid of the anchor rod body (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321997458.XU CN220226941U (en) | 2023-07-27 | 2023-07-27 | A prestressing force stock for engineering is last |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321997458.XU CN220226941U (en) | 2023-07-27 | 2023-07-27 | A prestressing force stock for engineering is last |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220226941U true CN220226941U (en) | 2023-12-22 |
Family
ID=89185762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321997458.XU Active CN220226941U (en) | 2023-07-27 | 2023-07-27 | A prestressing force stock for engineering is last |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220226941U (en) |
-
2023
- 2023-07-27 CN CN202321997458.XU patent/CN220226941U/en active Active
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