CN215767969U - Fixing device for centering and adjusting distance of steel fiber tensioning and clamping fixture - Google Patents
Fixing device for centering and adjusting distance of steel fiber tensioning and clamping fixture Download PDFInfo
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- CN215767969U CN215767969U CN202122043782.5U CN202122043782U CN215767969U CN 215767969 U CN215767969 U CN 215767969U CN 202122043782 U CN202122043782 U CN 202122043782U CN 215767969 U CN215767969 U CN 215767969U
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Abstract
The utility model belongs to the technical field of steel fiber mechanical property testing. The fixing device comprises a supporting table, a fixing unit, a workbench and a clamping unit, wherein the fixing unit is used for fixing the supporting table on a basic platform; the two work tables are oppositely arranged on the support table from left to right, a sliding locking unit is arranged on the support table and used for adjusting the distance between the two work tables and fixing the work tables and the support table; and each workbench is correspondingly provided with a clamping unit which is used for fixing the steel fiber tensioning and clamping fixture. This application structural design is reasonable, can realize the effective centering location centre gripping to steel fibre, avoids the centre gripping in-process to steel fibre's non-directional tension-compression and twist reverse, improves the accuracy nature that detects.
Description
Technical Field
The utility model belongs to the technical field of steel fiber mechanical property testing, and particularly relates to a fixing device for centering and adjusting a steel fiber tensioning and clamping fixture.
Background
In order to accurately test various physical performance indexes of the steel fiber, particularly mechanical indexes such as tensile strength, elastic modulus and ultimate elongation, a direct tensile performance test of the steel fiber needs to be carried out. In order to better match a steel fiber tensioning and clamping fixture and a steel fiber tensile property testing system (CN 105486592A) invented by the inventor in the prior art, realize the rapid and efficient test of the mechanical property of the steel fiber, avoid the repeated tension, compression and torsion of the tensioning and clamping fixture on the steel fiber in the process of clamping the steel fiber and installing the steel fiber tensioning and clamping fixture, and enable the steel fiber to bear fatigue stress, thereby causing different damage to the steel fiber, leading the testing value not to be the true tensile strength of the steel fiber, even leading the steel fiber to generate fracture and damage in advance, and reducing the success rate of the test, a tensioning and fixing device which has simple structure and convenient operation and is used for centering and distance adjustment of the steel fiber clamping fixture is necessary to be developed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems and the defects, and provides a centering and distance-adjusting fixing device for a steel fiber tensioning and clamping fixture, which has reasonable structural design, can realize effective centering, positioning and clamping on steel fibers, avoids non-directional tension, compression and torsion on the steel fibers in the clamping process, and improves the detection accuracy.
In order to realize the purpose, the adopted technical scheme is as follows:
the utility model provides a fixing device of steel fibre stretch-draw centre gripping anchor clamps centering roll adjustment, includes:
a support table;
the fixing unit is used for fixing the supporting platform on a basic platform;
the two work tables are oppositely arranged on the support table from left to right, a sliding locking unit is arranged on the support table and used for adjusting the distance between the two work tables and fixing the work tables and the support table; and
and the clamping units are correspondingly arranged on the work tables and are used for fixing the steel fiber tensioning and clamping fixture.
According to the fixing device for centering and adjusting the distance of the steel fiber tensioning and clamping clamp, the fixing unit preferably comprises:
a base plate;
the base plate is matched, attached and supported on the connecting blocks;
the first bolts are arranged on the bottom plate and correspondingly connected with the first screw holes; and
the supporting platform is supported and arranged on the bottom plate, the limiting locking unit is arranged between the supporting platform and the bottom plate, and the limiting locking unit is used for restraining the position of the supporting platform on the bottom plate and fixing the supporting platform and the bottom plate.
According to the fixing device for centering and adjusting the distance of the steel fiber tensioning and clamping clamp, preferably, the limit locking unit comprises:
the first limit baffle is arranged on one side of the bottom plate;
the second limiting baffle is arranged on the other side of the bottom plate, and the first limiting baffle and the second limiting baffle are oppositely arranged; and
and the second bolt is used for fixing the support platform and the bottom plate.
According to the fixing device for centering and adjusting the distance of the steel fiber tensioning and clamping fixture, preferably, a second bolt is arranged on one of the first limiting baffle and the second limiting baffle, the second bolt is correspondingly connected with the supporting table end face top support or a second screw hole arranged on the supporting table end face, and an upper pressing plate attached to the upper end face of the supporting table is arranged on the upper portion of the other one of the first limiting baffle and the second limiting baffle; or
A plurality of second bolts are arranged on the support table, and third screw holes corresponding to the second bolts are arranged on the bottom plate; or
And the first limit baffle and the second limit baffle are both provided with second bolts, and the end face of the support table is provided with fourth screw holes corresponding to the second bolts.
According to the fixing device for centering and adjusting the distance of the steel fiber tensioning and clamping fixture, preferably, the bottom plate is further provided with an anti-falling stop block, and the anti-falling stop block, the first limit baffle and the second limit baffle form a positioning groove with three surfaces wrapped.
According to the centering and distance-adjusting fixing device for the steel fiber tensioning and clamping fixture, preferably, the upper end face of the bottom plate comprises supporting end faces at two ends and a fixing end face at the middle part, and the fixing end face is of a sink groove type structure.
According to the fixing device for centering and adjusting the distance of the steel fiber tensioning and clamping clamp, the sliding and locking unit preferably comprises:
the sliding groove is formed in the supporting table, and the width of the groove body of the sliding groove is larger than that of the notch of the sliding groove;
the sliding block is arranged on the workbench and is arranged in the sliding groove in a matching sliding manner; and
and the third bolt is used for fixing the workbench and the support platform.
The sliding groove is a dovetail groove; or
The sliding groove is a rectangular groove, an anti-falling groove is formed in the side edge of the sliding groove, and an anti-falling side sliding plate corresponding to the anti-falling groove is arranged on the sliding block.
According to the fixing device for centering and adjusting the distance of the steel fiber tensioning and clamping fixture, preferably, the clamping unit comprises a fixed clamping block, a fixed table and a clamping screw, the fixed clamping block is arranged at the first end of the workbench, the fixed table is arranged at the second end of the workbench, the clamping screw is connected to the fixed table through threads, and a movable clamping block corresponding to the fixed clamping block is arranged at the end of the clamping screw.
By adopting the technical scheme, the beneficial effects are as follows:
this application structural design is reasonable, can realize effective centering location centre gripping to steel fibre to prevent that steel fibre stretch-draw centre gripping anchor clamps from drawing repeatedly to press and twist reverse steel fibre, avoid the steel fibre test piece to bear fatigue stress at the installation stage, and make steel fibre be in same water flat line all the time at the installation stage, prevent to bear crooked and torsional stress. The supporting table is arranged, so that the positioning, mounting and dismounting can be more conveniently carried out, the position movement can be avoided in the process of clamping and tensioning the steel fibers, and the convenience of steel fiber operation and the connection convenience in the subsequent detection process are improved; the arrangement of the supporting table and the workbench facilitates the adjustment of the distance between the two workbenches, so that the requirement on the length of the steel fiber test piece is met, the arrangement of the sliding limiting unit not only enables the workbench and the supporting table to be more convenient to assemble and disassemble, but also improves the stability of the structure, enables the sliding to be smoother, facilitates the fixation after adjustment, and is strong in practicability; the clamping unit is arranged, so that on one hand, the operation is convenient, on the other hand, the interference on the subsequent disassembly of the steel fiber tensioning clamping fixture cannot be caused, and the workbench and the supporting table can be separated from the steel fiber tensioning clamping fixture conveniently during the tensioning test; the utility model provides a fixed unit can make the assembly more edit through addding the bottom plate, the split work of the different stages of being more convenient for interfere still less in carrying out operation process, more convenient and fast, the practicality is stronger, can make the influence that produces reduce to the minimum in the steel fibre installation, fully ensure test data's reliability.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention will be briefly described below. Wherein the drawings are only for purposes of illustrating some embodiments of the utility model and are not to be construed as limiting the utility model to all embodiments thereof.
Fig. 1 is a schematic structural diagram of a centering and distance-adjusting fixing device of a steel fiber tensioning and clamping fixture according to an embodiment of the utility model.
Fig. 2 is a schematic structural diagram of a base plate according to an embodiment of the present invention.
FIG. 3 is a schematic diagram of a support stage according to an embodiment of the utility model.
Fig. 4 is a schematic perspective view of a clamping unit according to an embodiment of the present invention.
Fig. 5 is a rear view schematically illustrating a clamping unit according to an embodiment of the present invention.
Fig. 6 is a schematic structural view of an operating state of a centering and distance-adjusting fixing device of a steel fiber tensioning and clamping clamp according to an embodiment of the utility model.
Fig. 7 is a schematic view of a clamping structure of a steel fiber and steel fiber tensioning and clamping fixture according to an embodiment of the utility model.
Number in the figure:
100 is a bottom plate, 101 is a connecting block, 102 is a first bolt, 103 is a first screw hole, 104 is a first limit baffle, 105 is a second limit baffle, 106 is a second bolt, 107 is an anti-drop stop block, 108 is an upper pressure plate, 109 is a second screw hole, 110 is a supporting end face, and 111 is a fixing end face;
200 is a supporting platform, 201 is a chute, and 202 is an anti-drop groove;
300 is a workbench, 301 is a slide block, 302 is a third bolt, 303 is an anti-falling side sliding plate;
400 is a clamping unit, 401 is a fixed clamping block, 402 is a fixed table, 403 is a clamping screw rod, 404 is a movable clamping block;
the device comprises a steel fiber tensioning and clamping clamp 510, a steel fiber 520, a load sensor 530 and a tensioning rod 540.
Detailed Description
Illustrative aspects of embodiments of the utility model are described more fully hereinafter with reference to the accompanying drawings, in which specific embodiments of the utility model are shown. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art.
In the description of the present invention, it should be understood that the terms "first" and "second" are used to describe various elements of the utility model, and are not intended to limit any order, quantity, or importance, but rather are used to distinguish one element from another.
It should be noted that when an element is referred to as being "connected," "coupled," or "connected" to another element, it can be directly connected, coupled, or connected, but it is understood that intervening elements may be present therebetween; i.e., positional relationships encompassing both direct and indirect connections.
It should be noted that the use of the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items.
It should be noted that terms indicating orientation or positional relationship such as "upper", "lower", "left", "right", and the like, are used only for indicating relative positional relationship, which is for convenience in describing the present invention, and do not indicate that the device or element must have a specific orientation, be constructed and operated in a specific orientation; when the absolute position of the object to be described is changed, the relative positional relationship may also be changed accordingly.
A fixing device for centering and adjusting distance of a steel fiber tensioning and clamping fixture comprises a supporting table 200, a fixing unit, a workbench 300 and a clamping unit, wherein the fixing unit is used for fixing the supporting table 200 on a basic platform; the two work tables 300 are oppositely arranged on the support platform 200 from left to right, a sliding locking unit is arranged on the support platform 200 and used for adjusting the distance between the two work tables 300 and fixing the work tables 300 and the support platform 200; each of the work tables 300 is correspondingly provided with a clamping unit, and the clamping unit 400 is used for fixing a steel fiber tensioning and clamping fixture 510.
In the structure, in order to improve the disassembly and assembly performance between the integral structure and the base platform and further facilitate assembly and disassembly after subsequent clamping is completed, the fixing unit comprises a bottom plate 100, a connecting block 101, a first bolt 102 and a limiting locking mechanism, wherein a plurality of connecting blocks 101 are fixed on the base platform, a first screw hole 103 is formed in the connecting block 101, and the bottom plate 100 is matched, attached and supported on the connecting block 101; a plurality of first bolts 102 are arranged on the bottom plate 100, and the first bolts 102 are correspondingly connected with the first screw holes 103; the supporting platform 200 is supported and arranged on the bottom plate 100, the limiting locking unit is arranged between the supporting platform 200 and the bottom plate 100, and the limiting locking unit is used for restraining the position of the supporting platform on the bottom plate 100 and fixing the supporting platform 200 and the bottom plate 100.
The connecting block can be with basic platform structure as an organic whole, and connecting block upper portion is provided with the supporting plane, and the bottom plate laminating is supported on the supporting plane, also can adopt as shown in the figure structure set up the boss in the bottom plate lower part, and the laminating is supported with the connecting block one-to-one to the boss, and then connects through first bolt.
The limit locking unit comprises a first limit baffle 104, a second limit baffle 105 and a second bolt 106, wherein the first limit baffle 104 is arranged on one side of the bottom plate 100; the second limit baffle 105 is arranged on the other side of the bottom plate 100, and the first limit baffle 104 and the second limit baffle 105 are oppositely arranged; the second bolt 106 is used to fix the support table 200 and the base plate 100.
To the position relation and specific structure between limit baffle and the second bolt, this application has given three kinds of different arrangement forms: the first form: one of the first limit baffle 104 and the second limit baffle 105 is provided with a second bolt 106, the end face of the support platform 200 is provided with a second screw hole 109 corresponding to the second bolt 106, and the upper part of the other limit baffle is provided with an upper pressure plate 108 attached to the upper end face of the support platform 200. The structure is the structure shown in the attached drawing, one end of the supporting table is matched and inserted in a groove body formed by the upper pressure plate and the first limiting baffle, the second end part of the supporting table is attached to the second limiting baffle, and the second limiting baffle and the supporting table are fixedly connected through the second bolt. In this structure, first limit baffle and second limit baffle all are L type structure to make the both ends of brace table set up on first limit baffle and second limit baffle's horizontal side, form heavy groove formula structure between two limit baffle and between the bottom plate, make things convenient for arranging of first bolt, avoid having between first bolt and the brace table to interfere. The upper end face of the bottom plate can also be designed, specifically, the upper end face of the bottom plate 100 includes a supporting end face 110 located at two ends and a fixing end face 111 located at the middle part, and the fixing end face 111 is a sink structure, that is, the supporting end face and the fixing end face are arranged in a step shape.
Above-mentioned structure can also all set up the top board at first limit baffle and second limit baffle's top to the brace table is pull formula structure and assembles, also all can set up the second bolt on first limit baffle and the second limit baffle, improves the stability of structure.
Or the structure can be provided with no second screw hole, the second bolt is directly supported on the end face of the supporting table, and the supporting table is prevented from being separated from the bottom plate at the moment, so that the upper pressure plate is arranged on the first limiting baffle and the second limiting baffle, and the top is limited.
The second form: this concrete structure is roughly the same with the structure of the form one, and the difference lies in, does not include the top board in this structure, is provided with a plurality of second bolts 106 on a supporting bench 200, be provided with the third screw that corresponds with each second bolt 106 on the bottom plate 100, realizes being connected of bottom plate and supporting bench through many second bolts, and this structure leads to the operating procedure loaded down with trivial details easily because a plurality of second bolts are required to operate, and the practicality is relatively poor.
The third form: the embodiment is basically the same as the first embodiment, and the difference is that the structure does not include an upper pressure plate, and the second embodiment adopts a mode of directly connecting a bottom plate and a support platform to fix, in the present application, the second bolts 106 are respectively arranged on the first limit baffle 104 and the second limit baffle 105, and the end surface of the support platform 200 is provided with fourth screw holes corresponding to the second bolts 106, so that the support platform is connected with the first limit baffle and the second limit baffle.
Because first limit baffle and second limit baffle have carried out the spacing of two directions, but the brace table can freely slide in two other directions in the installation, does not have the position constraint, consequently still is provided with anticreep dog 107 on the bottom plate 100 of this application, anticreep dog 107 with first limit baffle 104 and second limit baffle 105 form the constant head tank of trilateral parcel. Therefore, the supporting table can be quickly positioned and fastened.
The sliding locking unit in this embodiment includes a sliding groove 201, a sliding block 202, and a third bolt 302, wherein the sliding groove 201 is provided on the support table 200, and the width of the groove body of the sliding groove 201 is larger than the width of the notch of the sliding groove 201; the sliding block 301 is arranged on the workbench 300, and the sliding block 301 is arranged in the sliding groove 201 in a matching sliding manner; the third bolt 302 is used to fix the work stage 300 and the support stage 200.
The spout 201 in this embodiment can directly adopt the dovetail to can not lead to the slider to break away from out from the spout, also be convenient for carry out the fastening between workstation and the brace table moreover, only need set up the bottom surface of the tight spout in third bolt top on the workstation or the up end of brace table can.
In addition, the sliding chute 201 of the application can also adopt a rectangular groove, in order to prevent the sliding block from separating from the rectangular groove, the side edge of the sliding chute 201 is provided with an anti-falling groove 202, the sliding block 301 is provided with an anti-falling side sliding plate 303 corresponding to the anti-falling groove 202, and the purpose that the sliding block can achieve is basically the same as that of a dovetail groove.
Further, clamping unit 400 of this application includes fixed centre gripping piece 401, fixed station 402 and clamping screw 403, fixed centre gripping piece 401 sets up the first end of workstation 300, fixed station 402 sets up the second end of workstation 300, clamping screw 403 passes through threaded connection on the fixed station 402, clamping screw 403's tip be provided with the movable centre gripping piece 404 that fixed centre gripping piece 401 corresponds.
Other clamping structure can also be adopted, other clamping structure need ensure can not lead to steel fibre stretch-draw centre gripping anchor clamps and clamping structure to cause the interference when dismantling, because during subsequent dismantlement, test devices such as steel fibre stretch-draw centre gripping anchor clamps and load sensor have assembled.
A steel fiber tension test method utilizes the steel fiber tension clamping fixture to test a centering and distance-adjusting fixing device, and specifically comprises the following steps:
the workbench 300 and the support platform 200 are assembled, the support platform is fixed on the basic platform through the fixing unit, specifically, the bottom plate 100 is fixed on the basic platform, the workbench 300 and the support platform 200 are assembled, the support platform 200 and the bottom plate 100 are aligned, and the situation that the workbench 300 cannot be assembled after the support platform 200 and the bottom plate 100 are assembled is avoided;
after the supporting is completed and the base plate 100 is fixed to the base plate 200, the clamping unit 400 is mounted on the workbench 300, the steel fiber tensioning and clamping fixture 510 is fixed to the workbench, the distance between the two workbenches is adjusted, and the workbench and the supporting table are fixed after the length of the steel fiber 520 meets the testing requirement;
the steel fiber tensioning and clamping fixture 510 is driven to anchor the steel fiber test piece, clamping of the steel fiber test piece is completed, redundant swinging and twisting are not needed in the real process, and the integrity of the steel fiber test piece is fully guaranteed;
loosening the fixing unit, and removing the support table from the base platform, wherein the support table, the workbench and the steel fiber tensioning and clamping fixture are of an integral structure, and the integral turnover is carried out, so that a tensioning rod 540 of the steel fiber tensioning and clamping fixture is connected with a load sensor 530, and the connection of the steel fiber tensioning and clamping fixture and the test equipment is completed;
after the belt connection is debugged in place, the clamping unit 400 is loosened, the clamping unit 400 and the steel fiber tensioning and clamping fixture 510 are separated, and the support table 200 and the workbench 300 are taken away;
and (5) performing a tension test, reading and recording data of the load sensor 530.
In the whole process, effective centering, positioning and clamping of the steel fibers are achieved, so that the steel fibers are prevented from being repeatedly pulled, pressed and twisted by the steel fiber tensioning and clamping clamp, the steel fiber test piece is prevented from bearing fatigue stress in the installation stage, the steel fibers are always positioned on the same horizontal line in the installation stage, and bending and torsional stress are prevented from being borne.
While the preferred embodiments for carrying out the utility model have been described in detail, it should be understood that they have been presented by way of example only, and not limitation as to the scope, applicability, or configuration of the utility model in any way. The scope of the utility model is defined by the appended claims and equivalents thereof. Many modifications may be made to the foregoing embodiments by those skilled in the art, which modifications are within the scope of the present invention.
Claims (9)
1. The utility model provides a fixing device of steel fibre stretch-draw centre gripping anchor clamps centering roll adjustment which characterized in that includes:
a support table;
the fixing unit is used for fixing the supporting platform on a basic platform;
the two work tables are oppositely arranged on the support table from left to right, a sliding locking unit is arranged on the support table and used for adjusting the distance between the two work tables and fixing the work tables and the support table; and
and the clamping units are correspondingly arranged on the work tables and are used for fixing the steel fiber tensioning and clamping fixture.
2. A device for centering and adjusting a steel fiber tensioning clamp according to claim 1, characterized in that the fixing unit comprises:
a base plate;
the base plate is matched, attached and supported on the connecting blocks;
the first bolts are arranged on the bottom plate and correspondingly connected with the first screw holes; and
the supporting platform is supported and arranged on the bottom plate, the limiting locking unit is arranged between the supporting platform and the bottom plate, and the limiting locking unit is used for restraining the position of the supporting platform on the bottom plate and fixing the supporting platform and the bottom plate.
3. A device for centering and adjusting a steel fiber tensioning and clamping fixture according to claim 2, wherein the limiting and locking unit comprises:
the first limit baffle is arranged on one side of the bottom plate;
the second limiting baffle is arranged on the other side of the bottom plate, and the first limiting baffle and the second limiting baffle are oppositely arranged; and
and the second bolt is used for fixing the support platform and the bottom plate.
4. A device for fixing a steel fiber tensioning and clamping fixture for centering and adjusting distance according to claim 3, wherein a second bolt is arranged on one of the first limit baffle and the second limit baffle, the second bolt is correspondingly connected with the supporting platform end face top support or a second screw hole arranged on the supporting platform end face, and an upper pressing plate attached to the supporting platform upper end face is arranged on the upper portion of the other one of the first limit baffle and the second limit baffle; or
A plurality of second bolts are arranged on the support table, and third screw holes corresponding to the second bolts are arranged on the bottom plate; or
And the first limit baffle and the second limit baffle are both provided with second bolts, and the end face of the support table is provided with fourth screw holes corresponding to the second bolts.
5. A device for fixing a steel fiber tensioning and clamping fixture in centering adjustment according to claim 3 or 4, characterized in that a retaining block is further arranged on the bottom plate, and the retaining block, the first limit baffle and the second limit baffle form a positioning groove with three sides surrounding.
6. A device for centering and adjusting a steel fiber tensioning and clamping fixture as claimed in claim 2, wherein the upper end face of the bottom plate comprises a supporting end face at two ends and a fixing end face at the middle part, and the fixing end faces are of a sink structure.
7. A device for centering and adjusting a clamping fixture for tensioning steel fibers according to claim 1, wherein the sliding locking unit comprises:
the sliding groove is formed in the supporting table, and the width of the groove body of the sliding groove is larger than that of the notch of the sliding groove;
the sliding block is arranged on the workbench and is arranged in the sliding groove in a matching sliding manner; and
and the third bolt is used for fixing the workbench and the support platform.
8. A fixing device for centering and adjusting a steel fiber tensioning and clamping fixture according to claim 7, wherein the sliding groove is a dovetail groove; or
The sliding groove is a rectangular groove, an anti-falling groove is formed in the side edge of the sliding groove, and an anti-falling side sliding plate corresponding to the anti-falling groove is arranged on the sliding block.
9. A fixing device for centering and adjusting a steel fiber tensioning and clamping fixture according to claim 1, wherein the clamping unit comprises a fixed clamping block, a fixed table and a clamping screw, the fixed clamping block is arranged at a first end of the workbench, the fixed table is arranged at a second end of the workbench, the clamping screw is connected to the fixed table through threads, and a movable clamping block corresponding to the fixed clamping block is arranged at an end of the clamping screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122043782.5U CN215767969U (en) | 2021-08-27 | 2021-08-27 | Fixing device for centering and adjusting distance of steel fiber tensioning and clamping fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122043782.5U CN215767969U (en) | 2021-08-27 | 2021-08-27 | Fixing device for centering and adjusting distance of steel fiber tensioning and clamping fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215767969U true CN215767969U (en) | 2022-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122043782.5U Active CN215767969U (en) | 2021-08-27 | 2021-08-27 | Fixing device for centering and adjusting distance of steel fiber tensioning and clamping fixture |
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| Country | Link |
|---|---|
| CN (1) | CN215767969U (en) |
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2021
- 2021-08-27 CN CN202122043782.5U patent/CN215767969U/en active Active
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