CN212658553U - Experimental biography power frock of dish knot scaffold connection pad shear strength - Google Patents
Experimental biography power frock of dish knot scaffold connection pad shear strength Download PDFInfo
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- CN212658553U CN212658553U CN202021017778.0U CN202021017778U CN212658553U CN 212658553 U CN212658553 U CN 212658553U CN 202021017778 U CN202021017778 U CN 202021017778U CN 212658553 U CN212658553 U CN 212658553U
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Abstract
The utility model discloses a force transmission tool for shear strength test of a connecting disc of a disc buckle scaffold, which comprises a main beam, a first force transmission cushion block, a second force transmission cushion block, a first fixing piece and a second fixing piece; the first force transmission cushion block and the second force transmission cushion block are symmetrically arranged on two sides of the bottom of the main beam, the top end of the first force transmission cushion block is fixedly connected with one side of the bottom of the main beam through a first fixing piece, and the second force transmission cushion block is fixedly connected with the other side of the bottom of the main beam through a second fixing piece; the bottom of the first force transmission cushion block is provided with a first arc-shaped groove; the bottom of the second force transmission cushion block is provided with a second arc-shaped groove. The utility model discloses a first mounting and second mounting are connected first biography power cushion, second biography power cushion and girder respectively, can realize that the dish detains the unilateral two side shear strength test of scaffold connection pad, also can realize that the dish detains the shear strength detection of a connection pad under different moments, have simplified experimental frock, and simple structure, installation and dismantlement are convenient.
Description
Technical Field
The utility model relates to a building element test equipment technical field specifically is a dish detains experimental biography power frock of scaffold connection pad shear strength.
Background
According to the requirements of 'socket type disc buckled steel pipe support members' (JG/T503), the shear strength detection of single and double sides of a disc buckled steel pipe support connecting disc is tested according to the diagrams of 6.4.1 and 6.4.2 respectively, the premise of completing the test is that a set of reliable and convenient test loading tool is designed and processed firstly, and no mature standard basis exists for the design and processing of the test tool at present. The shear strength test of the existing disc buckle type steel pipe support connecting disc mostly adopts a universal testing machine, each test corresponds to a set of test tools which are processed in a matched mode, multiple sets of test tools need to be matched for completing the shear strength test of the disc buckle type scaffold connecting disc under different moments, materials are wasted, and the difficulty of mounting and dismounting the tools is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a can realize under the different moment the experimental dish of connection pad unilateral both sides shear strength detains scaffold connection pad shear strength test and passes power frock is provided.
The utility model discloses a following technical means realizes solving above-mentioned technical problem:
a force transmission tool for a shear strength test of a connecting disc of a disc buckle scaffold comprises a main beam, a first force transmission cushion block, a second force transmission cushion block, a first fixing piece and a second fixing piece; the first force transmission cushion block and the second force transmission cushion block are symmetrically arranged on two sides of the bottom of the main beam, the top end of the first force transmission cushion block is fixedly connected with one side of the bottom of the main beam through a first fixing piece, and the second force transmission cushion block is fixedly connected with the other side of the bottom of the main beam through a second fixing piece;
the bottom of the first transmission cushion block is provided with a first arc-shaped groove matched with a steel pipe of the disc buckle scaffold connecting disc;
and a second arc-shaped groove matched with the steel pipe of the coiling scaffold connecting plate is formed in the bottom of the second force transmission cushion block.
When the shear strength test of the single side of the connecting disc of the disc-buckle scaffold needs to be carried out under different moments, firstly, a disc-buckle scaffold test piece is placed on a lifting platform of a universal testing machine, then the distance between a first force transmission cushion block and a second force transmission cushion block is adjusted according to the moment requirements, then the first force transmission cushion block and the second force transmission cushion block are fixedly installed on the two sides of the bottom of a main beam by using a first fixing piece and a second fixing piece respectively, then an assembled tool is installed on the disc-buckle scaffold test piece, a first arc-shaped groove and a second arc-shaped groove at the bottoms of the first force transmission cushion block and the second force transmission cushion block are simultaneously clamped with a transverse steel pipe at the single side of the connecting disc on a vertical rod of the disc-buckle scaffold test piece, and then the lifting platform of the universal testing machine is started to carry out the shear strength test; similarly, when the bilateral shear strength tests of the disc-buckling scaffold connecting disc are required under different moments, the disc-buckling scaffold connecting disc is placed on a lifting platform of a universal testing machine, then the distance between a first force transmission cushion block and a second force transmission cushion block is adjusted according to the requirement of the moment, then the first force transmission cushion block and the second force transmission cushion block are fixedly installed on two sides of the bottom of a main beam by using a first fixing piece and a second fixing piece respectively, then an assembled tool is installed on a disc-buckling scaffold test piece, a first arc-shaped groove at the bottom of the first force transmission cushion block is clamped with a transverse steel pipe on one side of the disc-buckling scaffold connecting disc, a second arc-shaped groove at the bottom of the second force transmission cushion block is clamped with a transverse steel pipe on the other side of the disc-buckling scaffold connecting disc, and then the lifting platform of the universal testing machine is started to perform the bilateral shear strength tests of the disc-buckling scaffold connecting.
The utility model discloses a first mounting and second mounting are connected first power cushion, second power cushion and girder respectively, and one set of frock can realize that the dish detains scaffold connection pad list both sides shear strength test, and passes the distance between the power cushion through adjusting first power cushion and second, also can realize the shear strength detection of dish knot frame connection pad under different moments, has simplified experimental frock, and simple structure, installation and dismantlement are convenient.
Preferably, the main beam comprises a top beam, a support beam and a bottom beam which are connected together; the supporting beam is vertically arranged, the top end of the supporting beam is fixedly connected with the central axis of the bottom of the top beam, and the bottom end of the supporting beam is fixedly connected with the central axis of the top of the bottom beam.
Preferably, the main beam is an I-shaped frame structure.
Preferably, the bottom beam one end is located a first mounting hole that link up from top to bottom is seted up to a supporting beam bilateral symmetry, first mounting hole is bar-shaped hole structure.
Preferably, the other end of the bottom beam is positioned on two sides of the supporting beam, and second mounting holes which are communicated up and down are symmetrically formed in the two sides of the supporting beam, and each second mounting hole is of a strip-shaped hole structure.
Preferably, first threaded holes are symmetrically formed in two sides of the top of the first force transmission cushion block, and the first threaded holes correspond to the first mounting holes.
Preferably, second threaded holes are symmetrically formed in two sides of the top of the second force transmission cushion block, and the second threaded holes correspond to the second mounting holes.
Preferably, the first fixing member includes a first bolt and a first nut; the lower end of the first bolt is in threaded connection with the first threaded hole, and the middle part of the first bolt is sleeved in the first mounting hole; the first nut is sleeved at the upper end of the first bolt, and the bottom of the first nut can abut against the bottom beam; because the first mounting hole is of a strip-shaped hole structure, the screw rod of the first bolt can be sleeved in the first mounting hole and can slide in the length direction of the first mounting hole, and the distance between the first force transmission cushion block and the second force transmission cushion block can be adjusted by utilizing the matching relation of the screw rod and the screw hole.
Preferably, the second fixing member includes a second bolt and a second nut; the lower end of the second bolt is in threaded connection with the second threaded hole, and the middle part of the second bolt is sleeved in the second mounting hole; the second nut is sleeved at the upper end of the second bolt, and the bottom of the second nut can abut against the bottom beam; because the second mounting hole is of a strip-shaped hole structure, the screw rod of the second bolt can be sleeved in the second mounting hole and can slide in the length direction of the second mounting hole, and the distance between the first force transmission cushion block and the second force transmission cushion block can be adjusted by utilizing the matching relation of the screw rod and the screw hole.
The working principle is as follows: firstly, placing a coil buckle scaffold test piece on a lifting platform of a universal testing machine, then adjusting the distance between a first force transmission cushion block and a second force transmission cushion block according to the requirement of torque, firstly aligning a first threaded hole at the top of the first force transmission cushion block with the position of a first mounting hole, aligning a second threaded hole at the top of the second force transmission cushion block with the position of a second mounting hole, then sequentially inserting a screw rod of a first bolt into the first mounting hole and the first threaded hole, screwing the first bolt until the lower end of the first bolt is completely screwed into the first threaded hole, sleeving a first nut at the upper end of the first bolt, and screwing the first nut until the bottom of the first nut can abut against the top surface of a bottom beam; inserting the screw of a second bolt into the second mounting hole and the second threaded hole in sequence, screwing the second bolt until the lower end of the second bolt is completely screwed into the second threaded hole, sleeving a second nut on the upper end of the screw of the second bolt, and screwing the second nut until the bottom of the second nut can abut against the top surface of the bottom beam; when the shear strength of the single side of the connecting disc of the disc buckle scaffold is required to be tested, the assembled tool can be firstly installed on a disc buckle scaffold test piece, a first arc-shaped groove and a second arc-shaped groove at the bottoms of a first force transmission cushion block and a second force transmission cushion block are simultaneously clamped with a transverse steel pipe on the single side of the connecting disc on the vertical rod of the disc buckle scaffold test piece, and then a lifting platform of a universal testing machine is started to perform the shear strength test of the single side of the connecting disc of the disc buckle scaffold; when the bilateral shear strength test of the scaffold connecting disc needs to be carried out on the disc buckle, the assembled tool is firstly installed on the scaffold test piece, the first arc-shaped groove at the bottom of the first force transmission cushion block is clamped with the transverse steel pipe on one side of the connecting disc on the scaffold test piece vertical rod, the second arc-shaped groove at the bottom of the second force transmission cushion block is clamped with the transverse steel pipe on the other side of the connecting disc on the scaffold test piece vertical rod, and then the lifting platform of the universal testing machine is started to carry out the bilateral shear strength test of the scaffold connecting disc.
The utility model has the advantages that:
1. the utility model discloses a first mounting and second mounting are connected first power cushion, second power cushion and girder respectively, and one set of frock can realize that the dish detains scaffold connection pad list both sides shear strength test, and passes the distance between the power cushion through adjusting first power cushion and second, also can realize the shear strength detection of dish knot frame connection pad under different moments, has simplified experimental frock, and simple structure, installation and dismantlement are convenient.
2. Because the first mounting hole and the second mounting hole are both of a strip-shaped hole structure, the screw rod of the first bolt can be sleeved in the first mounting hole and can slide in the length direction of the first mounting hole, the screw rod of the second bolt can be sleeved in the second mounting hole and can slide in the length direction of the second mounting hole, and the distance between the first force transmission cushion block and the second force transmission cushion block can be adjusted by utilizing the matching relation between the screw rod and the screw hole.
Drawings
Fig. 1 is a schematic structural view of a force transmission tool for a shear strength test of a connecting plate of a coil scaffold of the utility model;
fig. 2 is a schematic view of a split structure of the tool according to the embodiment of the present invention;
FIG. 3 is a schematic structural view of a single-side shear strength test of a connecting disc of a disc buckle scaffold according to an embodiment of the present invention;
fig. 4 is an enlarged schematic structural view of a double-side shear strength test of the connecting disc of the scaffold for a disc buckle according to the embodiment of the present invention.
The reference numbers illustrate:
1. a main beam; 11. a top beam; 12. a support beam; 13. a bottom beam; 131. a first mounting hole; 132. a second mounting hole; 2. a first force transfer pad; 21. a first arc-shaped slot; 22. a first threaded hole; 3. a second force transfer pad; 31. a second arc-shaped slot; 32. a second threaded hole; 4. a first fixing member; 41. a first bolt; 42. a first nut; 5. a second fixing member; 51. a second bolt; 52. a second nut.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example one
As shown in fig. 1, the embodiment discloses a force transmission tool for a shear strength test of a connecting disc of a disc buckle scaffold, which comprises a main beam 1, a first force transmission cushion block 2, a second force transmission cushion block 3, a first fixing piece 4 and a second fixing piece 5.
As shown in fig. 2, and with particular reference to the orientation of fig. 2, the main beam 1 comprises a top beam 11, a support beam 12 and a bottom beam 13, which are connected together and may be formed integrally; the supporting beam 12 is vertically arranged, the top end of the supporting beam 12 is welded and fixed with the central axis of the bottom of the top beam 11, the supporting beam can also be fixedly connected in the existing bolt or screw connection mode, the bottom end of the supporting beam 12 is welded and fixed with the central axis of the top of the bottom beam 13, and the supporting beam can also be fixedly connected in the existing bolt or screw connection mode.
As shown in fig. 2, and with reference to the orientation of fig. 2, the top of the left end of the bottom beam 13 on both sides of the support beam 12 is symmetrically provided with vertically penetrating first mounting holes 131, the first mounting holes 131 are in a strip-shaped hole structure, and the first mounting holes 131 may also be in a waist-shaped hole structure.
As shown in fig. 2, and with reference to the orientation of fig. 2, the top of the right end of the bottom beam 13 at both sides of the support beam 12 is symmetrically provided with vertically penetrating second mounting holes 132, the second mounting holes 132 are in a strip-shaped hole structure, and the second mounting holes 132 may also be in a waist-shaped hole structure.
As shown in fig. 1 and 2, and specifically referring to the orientation of fig. 1, the first force transmission cushion block 2 of the present embodiment is a rectangular block structure, the first force transmission cushion block 2 is disposed on the left side of the bottom beam 13, and the bottom of the first force transmission cushion block 2 is provided with a first arc-shaped groove 21 penetrating from left to right, and the first arc-shaped groove 21 is matched with the outer wall of the steel pipe of the disc buckle scaffold connection disc; the top of the first force transmission cushion block 2 in this embodiment may be directly welded to the left side of the bottom beam 13, or may be glued to the left side of the bottom beam 13;
the first force transmission cushion block 2 of this embodiment can also be fixedly mounted on the left side of the bottom beam 13 by using the existing bolt or screw connection method, therefore, the first threaded holes 22 are symmetrically formed in the front and rear sides of the top of the first force transmission cushion block 2 of this embodiment, and the positions of the first threaded holes 22 correspond to the positions of the first mounting holes 131.
As shown in fig. 1, 2, and particularly with reference to the orientation of fig. 2, the first fixing member 4 includes a first bolt 41 and a first nut 42; the lower end of the first bolt 41 is in threaded connection with the first threaded hole 22, the middle part of the first bolt 41 is sleeved in the first mounting hole 131, and the first mounting hole 131 is of a strip-shaped hole structure, so that a screw of the first bolt 41 can be sleeved in the first mounting hole 131 and can slide in the length direction of the first mounting hole 131, and the distance between the first force transmission cushion block 2 and the second force transmission cushion block 3 can be adjusted by utilizing the matching relationship between the screw and the screw; the first nut 42 is disposed on the upper end of the first bolt 41, and the bottom of the first nut 42 can abut against the top surface of the bottom beam 13.
As shown in fig. 1 and 2, and referring to the orientation of fig. 1, the second force transmission cushion block 3 of the present embodiment is a rectangular block structure, the second force transmission cushion block 3 is disposed on the right side of the bottom beam 13, and the bottom of the second force transmission cushion block 3 is provided with a second arc-shaped groove 31 penetrating from left to right, and the second arc-shaped groove 31 is matched with the outer wall of the steel pipe of the connecting disc of the disc buckle scaffold; the top of the second force transmission cushion block 3 of the embodiment can be directly welded on the right side of the bottom beam 13, and can also be glued on the right side of the bottom beam 13;
the second force transmission cushion block 3 of this embodiment can also be fixedly mounted on the right side of the bottom beam 13 by using the existing bolt or screw connection method, therefore, the second threaded holes 32 are symmetrically formed in the front and rear sides of the top of the second force transmission cushion block 3 of this embodiment, and the positions of the second threaded holes 32 correspond to the positions of the second mounting holes 132.
As shown in fig. 1, 2, and particularly with reference to the orientation of fig. 2, the second mount 5 includes a second bolt 51 and a second nut 52; the lower end of the second bolt 51 is in threaded connection with the second threaded hole 32, the middle part of the second bolt 51 is sleeved in the second mounting hole 132, and the second mounting hole 132 is of a strip-shaped hole structure, so that a screw of the second bolt 51 can be sleeved in the second mounting hole 132 and can slide in the length direction of the second mounting hole 132, and the distance between the first force transmission cushion block 2 and the second force transmission cushion block 3 can be adjusted by utilizing the matching relationship between the screw and the screw; the second nut 52 is disposed on the upper end of the second bolt 51, and the bottom of the second nut 52 can abut against the top surface of the bottom beam 13.
The working principle of the embodiment is as follows: the utility model provides a dish is detained scaffold connection pad shear strength test and is passed power frock, at first place dish knot scaffold test piece on universal tester's elevating platform, then adjust first power cushion 2, the distance between the second power cushion 3 according to the demand of moment, at first aim at the position of the first screw hole 22 at first power cushion 2 top with first mounting hole 131, the second screw hole 32 at second power cushion 3 top is aimed at with the position of second mounting hole 132, then insert first mounting hole 131 and first screw hole 22 in proper order with the screw rod of first bolt 41, and twist first bolt 41 until the complete screw thread of the lower extreme of first bolt 41 precession first screw hole 22, overlap first nut 42 in first bolt 41 upper end again, twist first nut 42 until the bottom of first nut 42 can support on the floorbar 13 top surface; inserting the screw of the second bolt 51 into the second mounting hole 132 and the second threaded hole 32 in sequence, screwing the second bolt 51 until the lower end of the second bolt 51 is screwed into the second threaded hole 32 completely, sleeving the second nut 52 on the upper end of the screw of the second bolt 51, and screwing the second nut 52 until the bottom of the second nut 52 can abut against the top surface of the bottom beam 13; when the single-side shear strength test of the connecting disc of the disc buckle scaffold is needed, the assembled tool can be firstly installed on a disc buckle scaffold test piece, a first arc-shaped groove 21 and a second arc-shaped groove 31 at the bottoms of a first force transmission cushion block 2 and a second force transmission cushion block 3 are simultaneously clamped with a transverse steel pipe at the single side of the connecting disc on the vertical rod of the disc buckle scaffold test piece, the structure is shown in figure 3, and then a lifting platform of a universal testing machine is started to carry out the single-side shear strength test of the connecting disc of the disc buckle scaffold; when the bilateral shear strength test of the connecting disc of the disc-buckle scaffold is needed, the assembled tool is firstly installed on the disc-buckle scaffold test piece, the first arc-shaped groove 21 at the bottom of the first force transmission cushion block 2 is clamped with the steel pipe at one side of the connecting disc of the disc-buckle scaffold, the second arc-shaped groove 31 at the bottom of the second force transmission cushion block 3 is clamped with the transverse steel pipe at the other side of the connecting disc on the vertical rod of the disc-buckle scaffold test piece, and the structure is shown in fig. 4, and then the lifting platform of the universal testing machine is started to perform the bilateral shear strength test of the connecting disc of the disc-buckle scaffold.
Compared with the prior art, the utility model has the following advantages: one of the two, the utility model discloses a first mounting 4 and second mounting 5 are connected first power transmission cushion 2, second power transmission cushion 3 and girder 1 respectively, and one set of frock can realize the dish and detain the unilateral both sides shear strength test of scaffold connection pad, and passes the distance between the cushion 3 through adjusting first power transmission cushion 2 and second, also can realize the shear strength detection of dish knot frame connection pad under different moments, has simplified experimental frock, simple structure, it is convenient to install and dismantle. Secondly, because the first mounting hole 131 and the second mounting hole 132 are both of a strip-shaped hole structure, the screw of the first bolt 41 can be sleeved in the first mounting hole 131 and can slide in the length direction of the first mounting hole 131, the screw of the second bolt 51 can be sleeved in the second mounting hole 132 and can slide in the length direction of the second mounting hole 132, and the adjustment of the distance between the first force transmission cushion block 2 and the second force transmission cushion block 3 is realized by utilizing the matching relationship between the screws and the screw holes.
Example two
The present embodiment differs from the above embodiments in that: as shown in fig. 1 and 2, the main beam 1 of the present embodiment is an i-shaped frame structure.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (9)
1. The utility model provides a dish detains experimental biography power frock of scaffold connection pad shear strength which characterized in that: the device comprises a main beam, a first force transmission cushion block, a second force transmission cushion block, a first fixing piece and a second fixing piece; the first force transmission cushion block and the second force transmission cushion block are symmetrically arranged on two sides of the bottom of the main beam, the top end of the first force transmission cushion block is fixedly connected with one side of the bottom of the main beam through a first fixing piece, and the second force transmission cushion block is fixedly connected with the other side of the bottom of the main beam through a second fixing piece;
the bottom of the first transmission cushion block is provided with a first arc-shaped groove matched with a steel pipe of the disc buckle scaffold connecting disc;
and a second arc-shaped groove matched with the steel pipe of the coiling scaffold connecting plate is formed in the bottom of the second force transmission cushion block.
2. The force transmission tool for the shear strength test of the connecting disc of the disc-buckle scaffold according to claim 1, wherein the force transmission tool comprises: the main beam comprises a top beam, a support beam and a bottom beam which are connected together; the supporting beam is vertically arranged, the top end of the supporting beam is fixedly connected with the central axis of the bottom of the top beam, and the bottom end of the supporting beam is fixedly connected with the central axis of the top of the bottom beam.
3. The force transmission tool for the shear strength test of the connecting disc of the disc-buckle scaffold according to claim 2, wherein the force transmission tool comprises: the main beam is of an I-shaped frame structure.
4. The force transmission tool for the shear strength test of the connecting disc of the disc-buckle scaffold according to claim 2, wherein the force transmission tool comprises: the bottom beam is characterized in that one end of the bottom beam is located on two sides of the supporting beam, first mounting holes which are through up and down are symmetrically formed in the two sides of the supporting beam, and the first mounting holes are of strip-shaped hole structures.
5. The force transmission tool for the shear strength test of the connecting disc of the disc-buckle scaffold according to claim 2, wherein the force transmission tool comprises: the other end of the bottom beam is located on two sides of the supporting beam, second mounting holes which are communicated up and down are symmetrically formed in the two sides of the supporting beam, and the second mounting holes are of a strip-shaped hole structure.
6. The force transmission tool for the shear strength test of the connecting disc of the disc-buckle scaffold according to claim 4, wherein the force transmission tool comprises: first threaded holes are symmetrically formed in two sides of the top of the first force transmission cushion block, and the first threaded holes correspond to the first mounting holes.
7. The force transmission tool for the shear strength test of the connecting disc of the disc-buckle scaffold according to claim 5, wherein the force transmission tool comprises: and second threaded holes are symmetrically formed in two sides of the top of the second force transmission cushion block and correspond to the second mounting holes.
8. The force transmission tool for the shear strength test of the connecting disc of the disc-buckle scaffold according to claim 6, wherein the force transmission tool comprises: the first fixing piece comprises a first bolt and a first nut; the lower end of the first bolt is in threaded connection with the first threaded hole, and the middle part of the first bolt is sleeved in the first mounting hole; the first nut sleeve is arranged at the upper end of the first bolt, and the bottom of the first nut can abut against the bottom beam.
9. The force transmission tool for the shear strength test of the connecting disc of the disc-buckle scaffold according to claim 7, wherein the force transmission tool comprises: the second fixing piece comprises a second bolt and a second nut; the lower end of the second bolt is in threaded connection with the second threaded hole, and the middle part of the second bolt is sleeved in the second mounting hole; the second nut sleeve is arranged at the upper end of the second bolt, and the bottom of the second nut can abut against the bottom beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021017778.0U CN212658553U (en) | 2020-06-05 | 2020-06-05 | Experimental biography power frock of dish knot scaffold connection pad shear strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021017778.0U CN212658553U (en) | 2020-06-05 | 2020-06-05 | Experimental biography power frock of dish knot scaffold connection pad shear strength |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212658553U true CN212658553U (en) | 2021-03-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021017778.0U Active CN212658553U (en) | 2020-06-05 | 2020-06-05 | Experimental biography power frock of dish knot scaffold connection pad shear strength |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212658553U (en) |
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2020
- 2020-06-05 CN CN202021017778.0U patent/CN212658553U/en active Active
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