CN214843040U - Bridge expansion joint detection device - Google Patents
Bridge expansion joint detection device Download PDFInfo
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- CN214843040U CN214843040U CN202120944724.7U CN202120944724U CN214843040U CN 214843040 U CN214843040 U CN 214843040U CN 202120944724 U CN202120944724 U CN 202120944724U CN 214843040 U CN214843040 U CN 214843040U
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Abstract
The utility model provides a bridge expansion joint detection device relates to bridge expansion joint check out test set technical field. The bridge expansion joint detection device comprises a base, a clamp assembly, an extrusion plate, a driving assembly, a second baffle, a limiting frame and an adjusting screw rod. The upper side of the base is provided with an accommodating groove. The clamp assembly is used for fixing the right side of the bridge expansion joint. The extrusion plate is used for extruding the left side of the bridge expansion joint, and a first baffle is fixed on the front side of the extrusion plate. The driving assembly comprises a lead screw and a sliding block which are connected in a sliding mode. The lead screw passes through the bearing and installs in the holding tank, and the one end of lead screw has the rocking handle, and the lower extreme of stripper plate is fixed on the slider. The second baffle is arranged on the upper side of the base and used for limiting the rightward movement of the first baffle. The adjusting screw is in threaded connection with the right side of the limiting frame, and the left end of the adjusting screw is rotatably connected with the second baffle through a bearing. The bridge expansion joint detection device has the advantages of good detection effect, simple structure, low cost, convenience in transportation and the like, and is suitable for large-area popularization.
Description
Technical Field
The utility model belongs to the technical field of bridge expansion joint check out test set technique and specifically relates to a bridge expansion joint detection device is related to.
Background
In order to meet the requirement of bridge deck deformation, expansion joints are usually provided between two beam ends, between a beam end and an abutment, or at the hinge joint of a bridge.
At present, the detection mode of the bridge expansion joint is to completely manually clamp a sample of the bridge expansion joint by manpower and keep a clamping state for a period of time. In order to ensure the accuracy of the detection result, multiple tests are needed, but in the process of repeated tests, the magnitude of the clamping force applied to the sample is difficult to control (manual operation is difficult to keep the force consistent), so that the accuracy of the detection result is reduced.
Disclosure of Invention
In order to the above situation, the utility model provides a bridge expansion joint detection device has solved current bridge expansion joint and has examined time measuring repeatedly many times, and the size of the clamping-force that the sample received is difficult to control to reduce the technical problem of testing result's accuracy.
In order to achieve the above object, the utility model provides a following technical scheme:
a bridge expansion joint detection device mainly comprises: base, anchor clamps subassembly, stripper plate, drive assembly, second baffle, spacing frame and adjusting screw.
The upper side of the base is provided with an accommodating groove.
And the clamp assembly is used for fixing the right side of the bridge expansion joint.
The extrusion plate is used for extruding the left side of the bridge expansion joint, and a first baffle is fixed on the front side of the extrusion plate.
And the driving assembly comprises a lead screw and a sliding block which are connected in a sliding mode. The lead screw passes through the bearing and installs in the holding tank, and the one end of lead screw has the rocking handle. The slider has the screw nut who matches with the lead screw, the bottom of slider and the bottom butt of holding tank. The lower end of the extrusion plate is fixed on the sliding block.
The second baffle is arranged on the upper side of the base and used for limiting the rightward movement of the first baffle.
The limiting frame is characterized in that a first guide rail is fixedly arranged at the bottom of the inner side of the limiting frame, the second baffle is provided with a sliding groove matched with the first guide rail, and the second baffle is perpendicular to the limiting frame and can move along the length direction of the limiting frame.
And the adjusting screw is in threaded connection with the right side of the limiting frame, and the left end of the adjusting screw is rotationally connected with the second baffle through a bearing.
The setting of drive assembly, removal stripper plate that can be even is through the common cooperation of anchor clamps subassembly and stripper plate so that the bridge expansion joint takes place to warp to can keep this state for a period of time. The second baffle is fixed, and the movement of the extrusion plate towards the right can be limited, so that the movement distances of the extrusion plate in the multiple testing processes are the same, the stress of the bridge expansion joint in the multiple testing processes is basically the same, and the accuracy of the detection result is ensured. In addition, the position of the second baffle plate can be adjusted by rotating the adjusting screw rod, so that the distance of the right movement of the extrusion plate can be adjusted. The bridge expansion joint detection device has the advantages of good detection effect, simple structure, low cost, convenience in transportation and the like, and is suitable for large-area popularization.
In some embodiments of the present invention, the above-mentioned clamp assembly includes: support frame, extension board, clamp plate and regulating plate.
The support frame is the font of falling V, and the right side at bridge expansion joint can be with the left side looks butt of support frame.
The extension plate is L-shaped, and the lower part of the extension plate is fixed on the support frame.
The upper part of the pressing plate is rotationally connected with the extension plate through a rotating shaft, and the pressing plate is matched with the support frame together to fix the bridge expansion joint. And two sides of the upper part of the pressing plate are fixedly provided with limiting screws, and the limiting screws are provided with first fastening nuts matched with the limiting screws.
The regulating plate is fixed on the upper portion of the extending plate, an arc-shaped first slide way is arranged on the regulating plate along the thickness direction of the regulating plate, the first slide way is coaxial with the rotating shaft, and the limiting screw rod can slide along the first slide way. The first fastening nut is screwed down to limit the movement of the limiting screw rod.
Through the setting of clamp plate and support frame, not only can fix the bridge expansion joint, can also be through removing the bridge expansion joint to suitably adjust the interval of bridge expansion joint and base. The setting of regulating plate, first slide, stop screw and first fastening nut can be fixed with the clamp plate to make the clamp plate compress tightly the bridge expansion joint on the support frame.
In some embodiments of the present invention, a fixing plate is disposed on the upper side of the base, and the fixing plate has a second slide way. The support frame includes: a first support plate and a second support plate.
The lower part of the first support plate is rotatably connected to the upper side of the base.
And the upper part of the second support plate is rotationally connected with the first support plate, the lower part of the second support plate is fixedly provided with a connecting rod, the connecting rod is connected in the second slideway in a sliding manner, one end of the connecting rod is in threaded connection with a second fastening nut, and the fixing plate is positioned between the second support plate and the second fastening nut.
The included angle of first extension board and second extension board can be adjusted, conveniently fixes multiple bridge expansion joint.
The utility model discloses an in some embodiments, the below of above-mentioned base can be dismantled and be provided with the bottom plate, and the mounting hole has all been seted up to the four corners department of bottom plate. The side of base sets firmly the mounting panel, and the mounting panel passes through the bolt with the bottom plate and links to each other.
When the bridge expansion joint detection device does not need to be moved, the bridge expansion joint detection device can be fixed through the fixing bottom plate. When the bridge expansion joint detection device needs to be moved, the bottom plate can be detached, and the movement of the bridge expansion joint detection device is facilitated.
In some embodiments of the present invention, the upper side of the base is provided with a mounting seat, and the mounting seat is used for fixing the camera.
The mount pad is used for fixed camera, can take notes whole testing process through the camera, subsequent analysis, the evidence of being convenient for.
In some embodiments of the present invention, the second guide rail is fixedly disposed on the base, the cross section of the second guide rail is T-shaped, the second guide rail is slidably connected to the sliding seat, and the lower end of the mounting seat is inserted into the sliding seat.
The second guide rail and the sliding seat are arranged, so that the position of the mounting seat can be conveniently adjusted. The lower extreme of mount pad is pegged graft in the sliding seat, makes things convenient for the installation, the change of mount pad.
In some embodiments of the present invention, a drawer is disposed on one side of the base.
The arrangement of the drawer is convenient for accommodating articles such as a camera.
In some embodiments of the present invention, the base is rotatably connected to a position-limiting member for limiting the movement of the drawer, and the position-limiting member is cross-shaped.
The limiting part is arranged, so that the drawer can be prevented from being accidentally opened in the moving process, and articles in the drawer can be prevented from being damaged.
The embodiment of the utility model provides an at least, have following advantage or beneficial effect:
1. the setting of drive assembly, removal stripper plate that can be even is through the common cooperation of anchor clamps subassembly and stripper plate so that the bridge expansion joint takes place to warp to can keep this state for a period of time. The second baffle is fixed, and the movement of the extrusion plate towards the right can be limited, so that the movement distances of the extrusion plate in the multiple testing processes are the same, the stress of the bridge expansion joint in the multiple testing processes is basically the same, and the accuracy of the detection result is ensured. In addition, the position of the second baffle plate can be adjusted by rotating the adjusting screw rod, so that the distance of the right movement of the extrusion plate can be adjusted. The bridge expansion joint detection device has the advantages of good detection effect, simple structure, low cost, convenience in transportation and the like, and is suitable for large-area popularization.
2. Through the setting of clamp plate and support frame, not only can fix the bridge expansion joint, can also be through removing the bridge expansion joint to suitably adjust the interval of bridge expansion joint and base. The setting of regulating plate, first slide, stop screw and first fastening nut can be fixed with the clamp plate to make the clamp plate compress tightly the bridge expansion joint on the support frame.
3. The mount pad is used for fixed camera, can take notes whole testing process through the camera, subsequent analysis, the evidence of being convenient for.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of a bridge expansion joint;
fig. 2 is a schematic structural view of a bridge expansion joint detection device according to an embodiment of the present invention;
FIG. 3 is a schematic view of a portion of the structure of FIG. 2;
FIG. 4 is a schematic view of a portion of the structure of FIG. 2 taken along direction A;
FIG. 5 is an enlarged view of a portion of the V position in FIG. 4;
FIG. 6 is a schematic view of the bridge expansion joint of FIG. 3 with the expansion joint removed;
fig. 7 is a schematic structural view of a second support plate and an extension plate according to an embodiment of the present invention;
fig. 8 is a partially enlarged view of the position viii in fig. 2.
Icon: 1-bridge expansion joint detection device, 11-base, 111-accommodating groove, 112-fixing plate, 113-second slide way, 114-mounting plate, 115-mounting seat, 116-second guide rail, 117-drawer, 118-limiting piece, 119-sliding seat, 12-clamp component, 121-supporting frame, 122-extending plate, 123-pressing plate, 124-adjusting plate, 125-limiting screw rod, 126-first fastening nut, 127-first slide way, 128-first supporting plate, 129-second supporting plate, 131-connecting rod, 132-second fastening nut, 14-extrusion plate, 141-first baffle, 151-lead screw, 152-sliding block, 153-rocking handle, 154-lead screw nut, 16-second baffle, 17-limiting frame, 171-first guide rail, 18-adjusting screw, 19-bottom plate, 191-mounting hole.
Detailed Description
In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the embodiments of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.
In the description of the embodiments of the present invention, it should be understood that the terms "length", "thickness", "upper", "lower", "front", "rear", "left", "right", "bottom", "inner", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the embodiments of the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features through another feature not in direct contact. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.
The following disclosure provides many different embodiments or examples for implementing different configurations of embodiments of the invention. In order to simplify the disclosure of embodiments of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit embodiments of the present invention. Furthermore, embodiments of the present invention may repeat reference numerals and/or reference letters in the various examples for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example 1
Referring to fig. 1 to 8, the present embodiment provides a bridge expansion joint detection apparatus 1, which mainly includes: the device comprises a base 11, a clamp assembly 12, an extrusion plate 14, a driving assembly, a second baffle plate 16, a limiting frame 17 and an adjusting screw 18.
The base 11 has a receiving cavity 111 on the upper side.
And a clamp assembly 12 for fixing the right side of the bridge expansion joint.
The extrusion plate 14 is used for extruding the left side of the bridge expansion joint, and a first baffle 141 is fixed on the front side of the extrusion plate 14.
And a driving assembly including a lead screw 151 and a slider 152 slidably coupled. The lead screw 151 is mounted in the receiving groove 111 through a bearing, and one end of the lead screw 151 has a crank 153. The slider 152 has a lead screw nut 154 matching the lead screw 151, and the bottom of the slider 152 abuts against the bottom of the accommodation groove 111. The lower end of the pressing plate 14 is fixed to the slider 152.
And a second barrier 16 disposed on the upper side of the base 11, wherein the second barrier 16 is used for limiting the movement of the first barrier 141 to the right.
Spacing frame 17, the inboard bottom of spacing frame 17 sets firmly first guide rail 171, and second baffle 16 has the spout that matches with first guide rail 171, and second baffle 16 is perpendicular and can move along the length direction of spacing frame 17 with spacing frame 17.
And the adjusting screw 18 is screwed on the right side of the limiting frame 17, and the left end of the adjusting screw 18 is rotatably connected with the second baffle 16 through a bearing.
The driving assembly is arranged to move the extrusion plate 14 uniformly, so that the bridge expansion joint is deformed through the cooperation of the clamp assembly 12 and the extrusion plate 14, and the state can be maintained for a period of time. The second baffle 16 is fixed, and the movement of the extrusion plate 14 to the right can be limited, so that the movement distances of the extrusion plate 14 in multiple testing processes are the same, and further, the stress of the bridge expansion joint in multiple testing processes is basically the same, and the accuracy of a detection result is ensured. Further, the position of the second shutter 16 can be adjusted by rotating the adjustment screw 18 so as to adjust the distance of rightward movement of the compression plate 14. The bridge expansion joint detection device 1 has the advantages of good detection effect, simple structure, low cost, convenience in transportation and the like, and is suitable for large-area popularization.
Specifically, the method comprises the following steps:
the clamp assembly 12 includes: a support frame 121, an extension plate 122, a pressure plate 123, and an adjustment plate 124. The support frame 121 is in an inverted V shape, and the right side of the bridge expansion joint can be abutted against the left side of the support frame 121. The extension plate 122 is L-shaped, and the lower portion thereof is fixed to the support frame 121. The upper part of the pressing plate 123 is rotatably connected with the extension plate 122 through a rotating shaft, and the pressing plate 123 is matched with the support frame 121 together to fix the bridge expansion joint. And two sides of the upper part of the pressing plate 123 are fixedly provided with limit screws 125, and the limit screws 125 are provided with first fastening nuts 126 matched with the limit screws. The adjusting plate 124 is fixed on the upper portion of the extending plate 122, an arc-shaped first slide way 127 is arranged on the adjusting plate 124 along the thickness direction of the adjusting plate, the first slide way 127 is coaxial with the rotating shaft, and the limiting screw 125 can slide along the first slide way 127. The movement of the check screw 125 is restricted by tightening the first tightening nut 126. Through the setting of clamp plate 123 and support frame 121, not only can fix the bridge expansion joint, can also be through removing the bridge expansion joint to suitably adjust the interval of bridge expansion joint and base 11. The setting of regulating plate 124, first slide 127, spacing screw 125 and first fastening nut 126 can be fixed with clamp plate 123 to make clamp plate 123 compress tightly the bridge expansion joint on support frame 121.
The upper side of the base 11 is provided with a fixing plate 112, and the fixing plate 112 is provided with a second slide way 113. The support frame 121 includes: first leg 128 and second leg 129. The lower portion of the first leg 128 is pivotally connected to the upper side of the base 11. The upper part of the second support plate 129 is rotatably connected with the first support plate 128, the lower part is fixedly provided with a connecting rod 131, the connecting rod 131 is slidably connected in the second slideway 113, one end of the connecting rod 131 is screwed with a second fastening nut 132, and the fixing plate 112 is positioned between the second support plate 129 and the second fastening nut 132. As shown in fig. 1, the included angles α of the bridge expansion joints of different specifications and sizes are different, and in order to make the symmetry line β of the bridge expansion joint perpendicular to the base 11, the included angles of the first support plate 128 and the second support plate 129 can be adjusted, so as to conveniently fix various bridge expansion joints.
The bottom plate 19 is detachably arranged below the base 11, and mounting holes 191 are formed in four corners of the bottom plate 19. The side of the base 11 is fixedly provided with a mounting plate 114, and the mounting plate 114 is connected with the bottom plate 19 through bolts. When the bridge expansion joint detection device 1 does not need to be moved, the bridge expansion joint detection device 1 can be fixed through the fixing bottom plate 19. When the bridge expansion joint detection device 1 needs to be moved, the lower plate 19 can be detached, so that the movement of the bridge expansion joint detection device 1 is facilitated.
The upper side of the base 11 is provided with a mounting seat 115, and the mounting seat 115 is used for fixing a camera (not shown in the figure). The mounting base 115 is used for fixing the camera, and can record the whole detection process through the camera, so that subsequent analysis and evidence obtaining are facilitated.
The base 11 is fixedly provided with a second guide rail 116, the section of the second guide rail 116 is T-shaped, the second guide rail 116 is slidably connected with a sliding seat 119, and the lower end of the mounting seat 115 is inserted into the sliding seat 119. The second guide rail 116 and the sliding seat 119 are arranged to facilitate the adjustment of the position of the mounting seat 115. The lower end of the mounting seat 115 is inserted into the sliding seat 119, so that the mounting seat 115 is convenient to mount and replace.
A drawer 117 is provided at one side of the base 11. The drawer 117 is provided to facilitate storage of articles such as a camera.
A limiting member 118 for limiting the movement of the drawer 117 is rotatably connected to the base 11, and the limiting member 118 is cross-shaped. The limiting member 118 is disposed to prevent the drawer 117 from being opened accidentally during the moving process, so as to prevent the articles in the drawer 117 from being damaged.
The working principle of the bridge expansion joint detection device 1 is as follows:
after the base 11 is fixed, a sample of the bridge expansion joint to be detected is taken, the first fastening nut 126 is unscrewed, the pressing plate 123 is rotated to enable the right side of the sample to lean against the first supporting plate 128, the pressing plate 123 is rotated in the other direction to enable the pressing plate 123 to compress the sample, and the sample can be fixed by screwing the first fastening nut 126. Then, the adjusting screw 18 is rotated, and the adjusting screw 18 drives the second baffle 16 to move relative to the limiting frame 17, so as to adjust the position of the second baffle 16. Then, the handle 153 is rotated to move the pressing plate 14 to the right to press the sample, and when the first shutter 141 is stopped by the second shutter 16, it is difficult for the operator to continue rotating the handle 153. When the sample is repeatedly tested for many times, the rocking handle 153 is only required to be rotated for many times.
When the included angle between first plate 128 and second plate 129 needs to be adjusted, second fastening nut 132 can be loosened, second plate 129 can be moved to a proper position, and second fastening nut 132 can be tightened.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A bridge expansion joint detection device, characterized by includes:
a base, the upper side of which is provided with an accommodating groove;
the clamp assembly is used for fixing the right side of the bridge expansion joint;
the extrusion plate is used for extruding the left side of the bridge expansion joint, and a first baffle is fixed on the front side of the extrusion plate;
the driving assembly comprises a lead screw and a sliding block which are connected in a sliding manner; the lead screw is arranged in the accommodating groove through a bearing, and one end of the lead screw is provided with a rocking handle; the sliding block is provided with a lead screw nut matched with the lead screw, and the bottom of the sliding block is abutted to the bottom of the accommodating groove; the lower end of the extrusion plate is fixed on the sliding block;
the second baffle is arranged on the upper side of the base and used for limiting the first baffle to move rightwards;
the bottom of the inner side of the limiting frame is fixedly provided with a first guide rail, the second baffle is provided with a sliding groove matched with the first guide rail, and the second baffle is perpendicular to the limiting frame and can move along the length direction of the limiting frame; and
and the adjusting screw is in threaded connection with the right side of the limiting frame, and the left end of the adjusting screw is rotationally connected with the second baffle through a bearing.
2. The bridge expansion joint detection apparatus of claim 1, wherein the clamp assembly comprises:
the support frame is in an inverted V shape, and the right side of the bridge expansion joint can be abutted against the left side of the support frame;
the lower part of the L-shaped extension plate is fixed on the support frame;
the upper part of the pressing plate is rotationally connected with the extension plate through a rotating shaft, and the pressing plate is matched with the support frame together to fix the bridge expansion joint; two sides of the upper part of the pressure plate are fixedly provided with limit screws, and the limit screws are provided with first fastening nuts matched with the limit screws;
the adjusting plate is fixed at the upper part of the extending plate, an arc-shaped first slide way is formed in the adjusting plate along the thickness direction of the adjusting plate, the first slide way is coaxial with the rotating shaft, and the limiting screw rod can slide along the first slide way; and the first fastening nut is tightened to limit the movement of the limiting screw rod.
3. The bridge expansion joint detection device according to claim 2, wherein a fixing plate is arranged on the upper side of the base, and the fixing plate is provided with a second slideway; the support frame includes:
the lower part of the first support plate is rotatably connected to the upper side of the base;
and the upper part of the second support plate is rotationally connected with the first support plate, the lower part of the second support plate is fixedly provided with a connecting rod, the connecting rod is connected in the second slideway in a sliding manner, one end of the connecting rod is connected with a second fastening nut in a threaded manner, and the fixing plate is positioned between the second support plate and the second fastening nut.
4. The bridge expansion joint detection device according to claim 1, wherein a bottom plate is detachably arranged below the base, and mounting holes are formed in four corners of the bottom plate; the side of base sets firmly the mounting panel, the mounting panel with the bottom plate passes through the bolt and links to each other.
5. The bridge expansion joint detection device according to any one of claims 1 to 4, wherein a mounting seat is arranged on the upper side of the base, and the mounting seat is used for fixing a camera.
6. The device for detecting the expansion joint of the bridge as claimed in claim 5, wherein the base is fixedly provided with a second guide rail, the section of the second guide rail is T-shaped, the second guide rail is slidably connected with a sliding seat, and the lower end of the mounting seat is inserted into the sliding seat.
7. The apparatus for detecting the expansion joint of the bridge as claimed in claim 5, wherein a drawer is provided at one side of the base.
8. The device for detecting the expansion joint of the bridge as claimed in claim 7, wherein the base is rotatably connected with a position-limiting member for limiting the movement of the drawer, and the position-limiting member is cross-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120944724.7U CN214843040U (en) | 2021-05-06 | 2021-05-06 | Bridge expansion joint detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120944724.7U CN214843040U (en) | 2021-05-06 | 2021-05-06 | Bridge expansion joint detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214843040U true CN214843040U (en) | 2021-11-23 |
Family
ID=78772129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120944724.7U Active CN214843040U (en) | 2021-05-06 | 2021-05-06 | Bridge expansion joint detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214843040U (en) |
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2021
- 2021-05-06 CN CN202120944724.7U patent/CN214843040U/en active Active
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