CN210690291U - Light steel keel for building and accessory mechanical property testing test bench - Google Patents
Light steel keel for building and accessory mechanical property testing test bench Download PDFInfo
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- CN210690291U CN210690291U CN201921460780.2U CN201921460780U CN210690291U CN 210690291 U CN210690291 U CN 210690291U CN 201921460780 U CN201921460780 U CN 201921460780U CN 210690291 U CN210690291 U CN 210690291U
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Abstract
The utility model relates to a light steel keel for building and accessory mechanical property test bench, including lower rack and upper rack, the mount of lower rack and movable frame enclose into the test surface that is equipped with the mounting bracket in, the mounting bracket includes fixed mounting bracket to and the movable mounting bracket that cup joints with the activity of fixed mounting bracket, set up the second locating hole that matches with first locating hole on fixed mounting bracket and the movable mounting bracket; the fixed mounting frame is used for fixing a first rotating shaft at the fixed end of the fixed frame and is rotationally connected with the fixed frame through the first rotating shaft; the movable mounting frame is fixed with a second rotating shaft at the end part of the movable frame and is rotationally connected with the movable frame through the second rotating shaft, and the first rotating shaft and the second rotating shaft are positioned on the same straight line; the movable frame is provided with a driving device which can drive the second rotating shaft to drive the mounting frame to rotate, and the driving device is connected with the second rotating shaft through a transmission mechanism. The utility model discloses can realize that the integral type detects the mechanical properties of light gauge steel and accessory, improve detection efficiency and data accuracy.
Description
Technical Field
The utility model relates to a building detection technology field, concretely relates to light gauge steel for building and accessory mechanical properties test bench.
Background
With the high-speed development of the building industry, novel building materials are continuously emerging, and the light steel keel serving as the novel building material is more and more widely applied to various building structures due to the characteristics of high standardization degree, flexible spatial arrangement, good earthquake resistance, industrial production, short construction period, environmental protection, energy conservation and the like.
The light steel keel is a cold-bending thin-wall metal framework for buildings, which is formed by rolling a high-quality continuous hot galvanized plate serving as a raw material through a cold bending process, and is used for modeling and decorating non-bearing walls and building roofs with light plates such as paper-faced gypsum boards, decorative gypsum boards and the like as veneers. As the light steel keel belongs to cold-formed thin-wall section steel, and the mechanical properties of wall and ceiling keel components meet related requirements, the light steel keel and the components need to be detected according to national standard light steel keel for construction GB/T11981 and industry standard light steel keel for construction JC/T558. Wherein: when testing the light steel keel of wall body, the horizontal distance of loading point apart from rack stiff end is 1.5 m.
The patent document with the application number of 201520586162.8 discloses a light steel keel detection frame, which comprises a static load test frame and an impact suspension frame positioned on the static load test frame, wherein the static load test frame is a square frame, one end of the static load test frame is a movable end, and the movable end is connected with a static load supporting accessory through a connecting piece; the impact suspension bracket comprises a suspension bracket vertical supporting rod and a suspension bracket horizontal supporting rod, a suspended ceiling keel suspension rod and a fixed pulley supporting rod are arranged on the suspension bracket horizontal supporting rod, and 1 fixed pulley is arranged on the fixed pulley supporting rod. It has the following disadvantages:
firstly, when a wall keel impact resistance test is carried out, the static load test frame needs gypsum boards for fixing and installing dial indicators on the upper surface and the lower surface of a light steel keel, and the gypsum boards and the dial indicators need to be installed at the bottom of the wall keel by manually bending the back surface on the ground due to the low height of the whole test device, so that the installation is difficult and great inconvenience is brought to reading in the test process;
second, when carrying out wall body fossil fragments shock resistance test, need transfer in wall body fossil fragments top 30cm department through the sand bag of 60 jin of artifical transport, artifical manually operation can't guarantee to decide apart from the weighing apparatus, and the detection data error is great, and the testing result accuracy is poor to because need the manual work to place the sand bag, so the workstation can't be heightened, wastes time and energy during the operation.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art's not enough, provide a light gauge steel and accessory mechanical properties for building detect and use test bench, can solve the problem of light gauge steel fixed mounting difficulty to can realize that the integral type detects the mechanical properties of light gauge steel and accessory, improve detection efficiency and data accuracy.
The utility model discloses a realize through following technical scheme:
a test bed for detecting mechanical properties of light steel keels and accessories for buildings comprises a lower bed frame and an upper bed frame, wherein the lower bed frame comprises a fixed frame and a movable frame positioned at the extended end of the fixed frame, the fixed frame and the movable frame are connected and positioned through a positioning pin and a first positioning hole, the fixed frame and the movable frame enclose a test surface for testing the light steel keels,
a mounting rack is arranged in the test surface,
the mounting frame comprises a fixed mounting frame positioned in the fixed frame and a movable mounting frame positioned in the movable frame and movably sleeved with the fixed mounting frame, and second positioning holes matched with the first positioning holes are formed in the fixed mounting frame and the movable mounting frame;
the fixed mounting frame is fixed with a first rotating shaft at the fixed end of the fixed mount and is rotationally connected with the fixed mount through the first rotating shaft; the movable mounting frame is fixedly provided with a second rotating shaft at the end part of the movable frame and is rotationally connected with the movable frame through the second rotating shaft, and the first rotating shaft and the second rotating shaft are positioned on the same straight line;
the movable frame is provided with a driving device which can drive the second rotating shaft to drive the mounting frame to rotate, and the driving device is connected with the second rotating shaft through a transmission mechanism.
This scheme installs the mounting bracket through rotating in the test face, it is spacing to utilize locating pin and locating hole, fixed mounting bracket and movable mounting bracket can carry out length variation as required, when installation light gauge steel and gypsum board in the mounting bracket, can finish the back at the front installation, shift out the locating pin, drive the mounting bracket through drive arrangement and rotate around first pivot and second pivot, come on the upset of the back, the installation of the back gypsum board and percentage table of being convenient for, and convenient operation has improved the installation effectiveness.
Furthermore, the transmission mechanism comprises a first transmission gear, a second transmission gear and a transmission chain for connecting the two transmission gears, the first transmission gear is in key connection with the driving end of the driving device, and the second transmission gear is in key connection with the second rotating shaft; the driving device is a servo motor.
Through drive gear and drive chain cooperation, through the servo motor drive, can realize that servo motor drives the second pivot and rotates, can design the gear ratio of first drive gear and second drive gear and cooperate the motor action time according to the gear ratio, realize that the motor action drives the second pivot at every turn and rotates the round, and then realize the 180 upset of mounting bracket.
As another scheme, the transmission mechanism comprises a transmission rod, the transmission rod is vertically and rotatably arranged in the height direction of the fixed frame through a supporting seat and a bearing, and two ends of the transmission rod are respectively fixed with a first helical gear;
the driving device also comprises two second bevel gears which are respectively matched with the first bevel gears, wherein one second bevel gear is in key connection with the driving end of the driving device, and the other second bevel gear is in key connection with the second rotating shaft; the driving device is a servo motor.
The transmission mechanism is matched with the transmission rod through the bevel gear, so that the power of the motor can be transmitted to the second rotating shaft, the second rotating shaft is driven to rotate, and the mounting frame is overturned.
Furthermore, the upper rack comprises a rectangular frame spliced and fixed by a vertical support rod and a horizontal support rod, a fixed pulley support rod vertical to the length direction of the lower rack is fixed at the center of the upper surface of the rectangular frame, two ceiling keel suspension rods are symmetrically fixed on two sides of the fixed pulley support rod, and each ceiling keel suspension rod is provided with a suspension rib positioning hole; the middle point of the fixed pulley supporting rod is provided with a hanging point, a hanging fixed pulley is installed on the hanging point, and a hanging rope with one end fixed with a heavy object is arranged on the hanging fixed pulley.
The hanging points on the fixed pulley supporting rods on the upper rack are provided with the hanging fixed pulleys, and the pulleys are used, so that the weight can be set at an accurate height and vertically and smoothly fall freely, and the test accuracy is improved; the ceiling keel suspension rods on the two sides of the fixed pulley support rod can be used for testing the ceiling keel.
Furthermore, the unilateral rail wheel matched with the edge of the movable frame is installed at the bottom of the vertical supporting rod, at least two third positioning holes used for limiting the upper rack in the test are formed in the movable frame, a positioning pin is arranged in each positioning hole, the upper rack is limited between the positioning pins, and the horizontal distance between the suspension point and the fixed end of the fixed frame is 1500 mm.
Go up the rack and roll through unilateral rail wheel and set up on the rack down, can remove last rack when the installation gypsum board, the installation of the gypsum board of being convenient for, unilateral rail wheel can prevent to go up the rack and break away from with rack down, through third locating hole and locating pin cooperation, can carry on spacingly to last rack, makes it when experimental, can guarantee the accuracy of position, improves the test accuracy.
Furthermore, a guide fixed pulley which is arranged in the same direction as the hanging fixed pulley is also arranged on the fixed pulley supporting rod, and the other end of the hanging rope penetrates through the hanging fixed pulley and the guide fixed pulley in sequence and is connected with a driving shaft of a heavy object motor arranged on the upper rack.
The suspension rope is guided by the guide fixed pulley, the suspension rope is driven by the driving motor, the manual lifting of the heavy object during the test is changed into the lifting of the motor driven heavy object, the manpower can be saved, and the labor intensity of the test personnel is reduced.
Furthermore, two accessory test holes with the distance of 200mm are formed in the suspended ceiling keel suspension rod.
The ceiling keel suspension rod is provided with the accessory test hole, the hanging rib can be installed through the accessory test hole, the hanging piece (matched hanging piece) is hung, the bearing keel with the length corresponding to the tested hanging piece is installed, the motor is matched, the corresponding weight is hung, and the test is carried out according to the standard requirement.
Further, the fixed mounting frame and the fixed frame are respectively provided with turnover limiting holes in two sides of the first rotating shaft, the movable mounting frame and the movable frame are respectively provided with turnover limiting holes in two sides of the second rotating shaft, and turnover limiting pins are arranged in the turnover limiting holes.
The spacing round pin of upset cooperation upset can cooperate the spacer pin in the first locating hole, the second locating hole to carry out all-round spacing to the mounting bracket, guarantees the stability of mounting bracket.
Furthermore, a lockable movable roller is arranged below the movable frame.
Can prolong or shorten holistic length through removing gyro wheel slip mount when adjusting down rack length, conveniently remove to utilize the locking function realization locking of removing the gyro wheel after the definite position.
The utility model has the advantages that:
the mounting frame is connected with the lower rack in a rotating mode, so that the front side and the back side of the mounting frame can be conveniently installed with the gypsum board and the dial indicator, the installation difficulty is reduced, and the reading is convenient.
And secondly, the mechanical property test of the wall keel, the mechanical property test of the ceiling keel and the mechanical property test of the accessories are integrated on one experiment table, so that the mechanical property detection of the integrated light steel keel and the accessories is realized, and meanwhile, the test floor area is reduced.
And thirdly, the hanging fixed pulley and the weight motor are matched to lift the heavy object, so that the labor intensity of testing personnel can be reduced, the hanging fixed pulley is matched with the falling of the weight, the position accuracy can be ensured, and the testing precision is improved.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
FIG. 2 is a top view of the lower gantry of FIG. 1;
FIG. 3 is a front view of FIG. 2;
FIG. 4 is a top view of the upper stage of FIG. 1;
FIG. 5 is a front view of FIG. 4;
fig. 6 is a schematic structural view of a transmission mechanism according to embodiment 2.
Shown in the figure:
1. a lower rack, 2, an upper rack, 3, a fixed rack, 4, a movable rack, 5, a driving device, 6, a weight motor, 7, a hanging fixed pulley, 8, a guiding fixed pulley, 9, a moving roller, 10, a positioning pin, 11, a hanging rope, 12, a test surface, 13, a mounting rack, 14, a fixed mounting rack, 15, a movable mounting rack, 16, a first positioning hole, 17, a second positioning hole, 18, a first rotating shaft, 19, a second rotating shaft, 20, a turnover limiting pin, 21, a third positioning hole, 22, a second transmission gear, 23, a first transmission gear, 24, a transmission chain, 25, a rectangular frame, 26, a hanging point, 27, a fixed pulley supporting rod, 28, a ceiling supporting rod, 29, a hanging rib positioning hole, 30, an accessory test hole, 31, a unilateral track wheel, 32, a weight, 33, a transmission rod, 34, a first bevel gear, 35, a second bevel gear, 36, a weight motor, 7, a hanging, And (4) supporting the base.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.
Example 1:
the utility model provides a light gauge steel for building and accessory mechanical properties test bench, includes rack 1 and last rack 2 down, and rack 1 includes mount 3 and is located the adjustable shelf 4 of 3 extension ends of mount, is connected the location through locating pin 10 and first locating hole 16 between mount 3 and the adjustable shelf 4, and mount 3 encloses into with adjustable shelf 4 and is used for the experimental test surface 12 of light gauge steel, is equipped with mounting bracket 13 in the test surface 12.
The mounting frame 13 comprises a fixed mounting frame 14 located in the fixed frame 3 and a movable mounting frame 15 located in the movable frame 4 and movably sleeved with the fixed mounting frame 14, a second positioning hole 17 matched with the first positioning hole 16 is formed in the fixed mounting frame 14 and the movable mounting frame 15, and the lockable movable roller 9 is mounted below the movable frame 4.
The fixed mounting frame 14 is fixed with a first rotating shaft 18 at the fixed end of the fixed frame 3 and is rotationally connected with the fixed frame 3 through the first rotating shaft 18; the movable mounting frame 15 is fixed with a second rotating shaft 19 at the end of the movable frame 4, and is rotatably connected with the movable frame 4 through the second rotating shaft 19, and the first rotating shaft 18 and the second rotating shaft 19 are located on the same straight line.
The movable frame 4 is provided with a driving device 5 which can drive the second rotating shaft 19 to drive the mounting frame 13 to rotate, and the driving device 5 is connected with the second rotating shaft 19 through a transmission mechanism.
The fixed mounting frame 14 and the fixed frame 3 are respectively provided with overturn limiting holes at two sides of the first rotating shaft 18, the movable mounting frame 15 and the movable frame 4 are respectively provided with overturn limiting holes at two sides of the second rotating shaft 19, and overturn limiting pins 20 are arranged in the overturn limiting holes.
The transmission mechanism comprises a first transmission gear 23, a second transmission gear 22 and a transmission chain 24 for connecting the two transmission gears, the first transmission gear 23 is in key connection with the driving end of the driving device 5, and the second transmission gear 22 is in key connection with the second rotating shaft 19; the drive means 5 is a servo motor.
The upper rack 2 comprises a rectangular frame 25 which is spliced and fixed by a vertical supporting rod and a horizontal supporting rod, a fixed pulley supporting rod 27 which is vertical to the length direction of the lower rack 1 is fixed at the center of the upper surface of the rectangular frame 25, two ceiling keel suspension rods 28 are symmetrically fixed on two sides of the fixed pulley supporting rod 27, and a suspension rib positioning hole 29 is formed in each ceiling keel suspension rod 28.
A hanging point 26 is arranged at the middle point of the fixed pulley supporting rod 27, a hanging fixed pulley 7 is arranged on the hanging point 26, and a hanging rope 11 with one end fixed with a weight 32 is arranged on the hanging fixed pulley 7. The fixed pulley supporting rod 27 is also provided with a guide fixed pulley 8 which is arranged in the same direction as the hanging fixed pulley 7, and the other end of the hanging rope 11 passes through the hanging fixed pulley 7 and the guide fixed pulley 8 in sequence and is connected with a driving shaft of a weight motor 6 arranged on the upper rack 2.
Two accessory test holes 30 with the distance of 200mm are formed in the suspended ceiling keel suspension rod 28.
The unilateral rail wheel 31 with 4 edge complex of adjustable shelf is installed to the bottom of vertical support pole, offers on the adjustable shelf 4 to be used for when experimental to two at least third locating holes 21 of last rack 2 spacing, is equipped with locating pin 10 in every locating hole 21, and the rack 2 spacing just keeps hanging the stiff end horizontal distance that point 26 apart from mount 3 between locating pin 10 to be 1500 mm.
And (3) about wall keel detection description:
lower rack 1 detects usefulness for the wall body fossil fragments, and the wall body fossil fragments are installed in mounting bracket 13, and mounting bracket 13 rotates with lower rack 1 through first pivot 18 and second pivot 19 to usable locating pin 10 is fixed with first locating hole 16, the cooperation of second locating hole 17. The width of the mounting frame 13 and the width of the lower rack 1 are fixed (1200 mm); the length can be adjusted according to the model of the wall keel (Q50 type is 2700mm, Q75 type is 4000mm, Q100 type and above is 5000 mm).
The adjusting method comprises the steps of pulling out the positioning pin 10, sliding the fixed end of the movable frame 4, rolling by using the movable roller 9 until the fixed end is fixed by the positioning pin 10 at the position with the first positioning hole 16 according to the corresponding length, installing a wall keel according to design or construction requirements, installing a front gypsum board, moving out the turnover limiting pins 20 on two sides, separating the positioning pins 10 in the first positioning hole 16 and the second positioning hole 17 from the mounting frame, starting the driving motor 5 to turn over the mounting frame 13, putting the turnover limiting pins 20 back into the turnover limiting holes, inserting the positioning pins in the first positioning hole 16 and the second positioning hole 17 into the mounting frame 13, and installing a back gypsum board. The upper rack 2 is pushed to the position (loading point) of 1500mm from the center of the heavy object 32 to the fixed end of the movable frame 4, and the upper rack is fixed by inserting the positioning pin 10 into the third positioning hole 21. Starting the weight motor 6 of the upper rack 2, hanging the weight 32, placing the corresponding wood lining plate on the loading point after hanging the weight 32, installing the magnetic seat dial indicator on the back of the loading point, and testing according to the standard requirement.
Description about ceiling keel detection:
the upper rack 2 is used for detecting the suspended ceiling keel and accessories, corresponding hanging rib positioning holes (900 x 900 or 1000 x 600) are selected according to the type of the suspended ceiling keel to install hanging ribs, and corresponding hanging racks, bearing keels (main keels) and covering keels are installed according to design or construction requirements. Starting the weight motor 6 of the upper rack 2, hanging the weight 32, placing the corresponding wood lining plate on the loading point after hanging the weight 32, respectively installing the magnetic seat dial indicators below the keel to be tested, and testing according to the standard requirements.
And (3) hanging piece detection description:
there are two intervals to be 200 mm's accessory test hole 30 on last rack 2 middle part furred ceiling keel bracing piece 28, and the muscle is hung in the installation, hangs the piece (customization steel sheet or thickening and hangs the piece), selects to hang the corresponding length that bears the weight of keel cross-section the same with being surveyed and is 300 mm's steel sheet, installs in the middle of the steel sheet and is surveyed and hang the piece. And starting the weight motor 6 of the upper rack, hanging the corresponding weight and testing according to the standard requirement.
Pendant detection description:
there are two interval 200 mm's accessory test hole 30 on 2 furred ceiling fossil fragments bracing pieces 28 of upper rack, the installation hangs the muscle, hangs a piece (supporting hanging), the corresponding length of installation and the pendant of being surveyed is 300 mm's bearing keel, the pendant of being surveyed is installed in the middle of bearing the keel, the facing fossil fragments of installation length 300mm, installation square pipe (120 60) and couple (install on 200 50 steel sheet), the position of adjustment side pipe makes the facing fossil fragments level. And starting the weight motor 6 of the upper rack 2, hanging the corresponding weight and testing according to the standard requirement.
Example 2:
the difference between the embodiment and embodiment 1 is that the transmission mechanism includes a transmission rod 33, the transmission rod 33 is vertically and rotatably mounted in the height direction of the fixed frame 3 through a support seat 36 and a bearing, and two ends of the transmission rod 33 are respectively fixed with a first bevel gear 34;
the driving device also comprises two second bevel gears 35 which are respectively matched with the first bevel gears 34, wherein one second bevel gear is in key connection with the driving end of the driving device 5, and the other second bevel gear is in key connection with the second rotating shaft 19; the drive means 5 is a servo motor.
Of course, the above description is not limited to the above examples, and technical features of the present invention that are not described in the present application may be implemented by or using the prior art, and are not described herein again; the above embodiments and drawings are only used for illustrating the technical solutions of the present invention and are not intended to limit the present invention, and the present invention has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should also belong to the protection scope of the claims of the present invention.
Claims (9)
1. The utility model provides a light gauge steel for building and accessory mechanical properties test bench, includes lower rack and last rack, and lower rack includes the mount and is located the adjustable shelf of mount extension end, through locating pin and first locating hole connection location between mount and the adjustable shelf, and the mount encloses with the adjustable shelf to be used for the experimental test surface of light gauge steel, its characterized in that:
a mounting rack is arranged in the test surface,
the mounting frame comprises a fixed mounting frame positioned in the fixed frame and a movable mounting frame positioned in the movable frame and movably sleeved with the fixed mounting frame, and second positioning holes matched with the first positioning holes are formed in the fixed mounting frame and the movable mounting frame;
the fixed mounting frame is fixed with a first rotating shaft at the fixed end of the fixed mount and is rotationally connected with the fixed mount through the first rotating shaft; the movable mounting frame is fixedly provided with a second rotating shaft at the end part of the movable frame and is rotationally connected with the movable frame through the second rotating shaft, and the first rotating shaft and the second rotating shaft are positioned on the same straight line;
the movable frame is provided with a driving device which can drive the second rotating shaft to drive the mounting frame to rotate, and the driving device is connected with the second rotating shaft through a transmission mechanism.
2. The test bed for detecting the mechanical properties of the light steel keel and the accessories for the building according to claim 1, wherein: the transmission mechanism comprises a first transmission gear, a second transmission gear and a transmission chain for connecting the two transmission gears, the first transmission gear is in key connection with the driving end of the driving device, and the second transmission gear is in key connection with the second rotating shaft; the driving device is a servo motor.
3. The test bed for detecting the mechanical properties of the light steel keel and the accessories for the building according to claim 1, wherein: the transmission mechanism comprises a transmission rod, the transmission rod is vertically and rotatably arranged in the height direction of the fixed frame through a supporting seat and a bearing, and two ends of the transmission rod are respectively fixed with a first helical gear;
the driving device also comprises two second bevel gears which are respectively matched with the first bevel gears, wherein one second bevel gear is in key connection with the driving end of the driving device, and the other second bevel gear is in key connection with the second rotating shaft; the driving device is a servo motor.
4. The test bed for detecting the mechanical properties of the light steel keel and the accessories for the building according to claim 1, wherein: the upper rack comprises a rectangular frame spliced and fixed by a vertical supporting rod and a horizontal supporting rod, a fixed pulley supporting rod vertical to the length direction of the lower rack is fixed at the center of the upper surface of the rectangular frame, two ceiling keel suspension rods are symmetrically fixed on two sides of the fixed pulley supporting rod, and each ceiling keel suspension rod is provided with a suspension rib positioning hole; the middle point of the fixed pulley supporting rod is provided with a hanging point, a hanging fixed pulley is installed on the hanging point, and a hanging rope with one end fixed with a heavy object is arranged on the hanging fixed pulley.
5. The test bed for detecting the mechanical properties of the light steel keel and the accessories for the building according to claim 4, wherein: the unilateral rail wheel that matches with the adjustable shelf edge is installed to the bottom of vertical support pole, offers on the adjustable shelf to be used for when experimental to two at least third locating holes of last rack spacing, is equipped with the locating pin in every locating hole, goes up the rack spacing and keeps hanging the stiff end horizontal distance that the point is apart from the mount between the locating pin to be 1500 mm.
6. The test bed for detecting the mechanical properties of the light steel keel and the accessories for the building according to claim 4, wherein: the fixed pulley supporting rod is also provided with a guide fixed pulley which is arranged in the same direction as the hanging fixed pulley, and the other end of the hanging rope penetrates through the hanging fixed pulley and the guide fixed pulley in sequence and is connected with a driving shaft of a heavy object motor arranged on the upper rack.
7. The test bed for detecting the mechanical properties of the light steel keel and the accessories for the building according to claim 4, wherein: two accessory test holes with the distance of 200mm are formed in the suspended ceiling keel suspension rod.
8. The test bed for detecting the mechanical properties of the light steel keel and the accessories for the building according to claim 1, wherein: the fixed mounting frame and the fixed frame are respectively provided with overturning limiting holes in two sides of the first rotating shaft, the movable mounting frame and the movable frame are respectively provided with overturning limiting holes in two sides of the second rotating shaft, and overturning limiting pins are arranged in the overturning limiting holes.
9. The test bed for detecting the mechanical properties of the light steel keel and the accessories for the building according to claim 1, wherein: a lockable movable roller is arranged below the movable frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921460780.2U CN210690291U (en) | 2019-09-04 | 2019-09-04 | Light steel keel for building and accessory mechanical property testing test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921460780.2U CN210690291U (en) | 2019-09-04 | 2019-09-04 | Light steel keel for building and accessory mechanical property testing test bench |
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| CN210690291U true CN210690291U (en) | 2020-06-05 |
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| CN201921460780.2U Active CN210690291U (en) | 2019-09-04 | 2019-09-04 | Light steel keel for building and accessory mechanical property testing test bench |
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| Country | Link |
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