CN212321293U - Reinforcing bar tensile strength testing machine - Google Patents
Reinforcing bar tensile strength testing machine Download PDFInfo
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- CN212321293U CN212321293U CN202020898659.4U CN202020898659U CN212321293U CN 212321293 U CN212321293 U CN 212321293U CN 202020898659 U CN202020898659 U CN 202020898659U CN 212321293 U CN212321293 U CN 212321293U
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- positioning
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- fixing device
- reinforcing bar
- ring
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Abstract
The utility model relates to a reinforcing bar tensile strength testing machine, which relates to a building field material testing machine, and comprises a machine body, a base arranged at the bottom end of the machine body, a lower end fixing device arranged on the base, a stretching table arranged at the upper end of the machine body and an upper end fixing device arranged on the stretching table, wherein a bottom plate arranged above the lower end fixing device is arranged on the base, and a positioning hole corresponding to the lower end fixing device is arranged on the bottom plate; the improved base plate is characterized in that an auxiliary fixing device is arranged on the base plate and comprises a base and a positioning ring connected with the base, the axis of the positioning ring coincides with the axis of the positioning hole, positioning pads are arranged on the base and the positioning ring in opposite directions, an adjusting bolt connected with the positioning ring in a threaded manner is connected onto the positioning pad of the positioning ring, and the axial direction of the positioning bolt extends to the base. The utility model discloses the fixed effect accurate with the guarantee test result that has the strengthening reinforcement.
Description
Technical Field
The utility model relates to a building field material testing machine especially relates to a reinforcing bar tensile strength testing machine.
Background
In building structural materials, reinforcing steel bars are an important component, and the performance of the reinforcing steel bars directly influences the applicability and safety of the structure. Therefore, the steel bars need to be subjected to necessary performance tests before being used in engineering construction.
In the prior art, reference can be made to a utility model patent with an authorization publication number of CN202814793U, and the utility model relates to a tensile testing machine, which comprises a machine body, wherein the machine body is provided with a base, the middle part of the base is provided with a lower end fixing device, the lower end fixing device comprises a fixing seat, a lock catch and a fixing pipe, and two side supports are arranged on two sides of the machine body; a stretching table is arranged between the two side supports, an upper end fixing device is arranged in the middle of the bottom end of the stretching table, and the upper end fixing device and the lower end fixing device have the same structure and are matched for use; the top of the machine body main body is provided with a cylinder and is fixedly connected with the stretching table through a connecting rod; the air cylinder is controlled by a control panel.
The above prior art solutions have the following drawbacks: above-mentioned testing machine passes through upper end fixing device and lower extreme fixing device and fixes the reinforcing bar, then in tensile process, the reinforcing bar can produce slight rocking and probably leads to the reinforcing bar to drop from fixing device to influence the test result accuracy.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims at providing a reinforcing bar tensile strength testing machine, its fixed effect accurate with the guarantee test result that has reinforcing bar.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
a reinforcing steel tensile strength testing machine comprises a machine body, a base arranged at the bottom end of the machine body, a lower end fixing device arranged on the base, a stretching table arranged at the upper end of the machine body and an upper end fixing device arranged on the stretching table, wherein a bottom plate arranged above the lower end fixing device is arranged on the base, and a positioning hole corresponding to the lower end fixing device is formed in the bottom plate; the improved base plate is characterized in that an auxiliary fixing device is arranged on the base plate and comprises a base and a positioning ring connected with the base, the axis of the positioning ring coincides with the axis of the positioning hole, positioning pads are arranged on the base and the positioning ring in opposite directions, an adjusting bolt connected with the positioning ring in a threaded manner is connected onto the positioning pad of the positioning ring, and the axial direction of the positioning bolt extends to the base.
Through adopting above-mentioned technical scheme, after the reinforcing bar is fixed through upper end fixing device and lower extreme fixing device, overlap the holding ring on the reinforcing bar and be connected with the base, then rotate adjusting bolt and come the alignment pad to the holding ring and adjust to make two alignment pads press from both sides the reinforcing bar tightly, thereby promote the reinforcing bar in the steadiness of tensile in-process, ensure the accuracy of test result.
The present invention may be further configured in a preferred embodiment as: two the locating pad all establishes to the cambered surface, and the cambered surface of two locating pads is towards the direction bending that deviates from mutually.
Through adopting above-mentioned technical scheme, establish the position pad into the cambered surface to when the position pad presss from both sides tightly the reinforcing bar, the contact surface of position pad and reinforcing bar surface is bigger, thereby promotes the firm effect of position pad to the reinforcing bar.
The present invention may be further configured in a preferred embodiment as: two ends of the base are respectively and rotatably connected with a positioning screw rod, positioning grooves matched with the positioning screws are respectively arranged at two ends of the positioning rings, which are connected with the base, and the positioning screws are in threaded connection with positioning nuts; after the positioning screw rod rotates into the positioning groove, the positioning nut can be screwed to be pressed against the positioning ring.
Through adopting above-mentioned technical scheme, after the retaining ring closes with the base, rotate the positioning screw at base both ends to the constant head tank on the holding ring in to rotate set nut and holding ring and support to die, alright realize the quick installation of holding ring on the base, and then realize the quick effect of stabilizing the reinforcing bar of holding ring.
The present invention may be further configured in a preferred embodiment as: the positioning nut is fixedly connected with a gasket at one side abutting against the positioning ring, and the outer diameter of the gasket is larger than that of the positioning nut.
Through adopting above-mentioned technical scheme, when set nut contradicts with the holding ring, the gasket on the set nut can increase the contact surface between set nut and the holding ring to promote the fixed action of set nut to the holding ring.
The present invention may be further configured in a preferred embodiment as: the gasket is provided with friction lines on the surface abutting against the positioning ring.
Through adopting above-mentioned technical scheme, set up friction line on the gasket to promote the friction between gasket and holding ring, thereby effectively prevent positioning nut's not hard up and lead to the unstability of holding ring.
The present invention may be further configured in a preferred embodiment as: the base is provided with a placing groove on the connecting surface with the positioning ring, and the positioning ring is provided with a placing block matched with the placing groove on the connecting surface with the base.
Through adopting above-mentioned technical scheme, when the retaining ring is connected with the base, the arrangement groove on the base can be inserted to the settling block on the retaining ring to realize that retaining ring and base are quick, accurate involution between them.
The present invention may be further configured in a preferred embodiment as: the mounting block is fixedly provided with a reinforcing plate vertical to the mounting block, and a reinforcing groove matched with the reinforcing plate is formed in the mounting groove.
Through adopting above-mentioned technical scheme, set up on settling the piece and settle piece vertically gusset plate, set up the reinforcement groove with the gusset plate adaptation in settling the inslot, when settling the piece and arranging the inslot in, the gusset plate also can arrange the reinforcement inslot in to positioning ring and base involution play the reinforcing effect, so that both fix.
The present invention may be further configured in a preferred embodiment as: the base is connected with the bottom plate in a sliding mode along the axial direction of the adjusting bolt, and the base is connected with a positioning bolt which is abutted to the bottom plate in a threaded mode.
Through adopting above-mentioned technical scheme, base along adjusting bolt's axial and bottom plate sliding connection, make the base can adjust the position of self according to the size of reinforcing bar to ensure the holding ring with the base installation back, the axis of holding ring can coincide with the axis of locating hole all the time.
To sum up, the utility model discloses a following at least one useful technological effect:
1. the reinforcing steel bars are clamped by the two positioning pads, so that the stability of the reinforcing steel bars in the stretching process is improved, and the accuracy of test results is guaranteed;
2. after the positioning ring is closed to the base, the positioning screws at the two ends of the base are rotated to the positioning grooves in the positioning ring, and the positioning nuts are rotated to be abutted against the positioning ring, so that the positioning ring can be quickly installed on the base, and the effect of quickly stabilizing the reinforcing steel bars by the positioning ring is further realized;
3. the base is connected with the bottom plate in a sliding mode along the axial direction of the adjusting bolt, the base can adjust the position of the base according to the size of the steel bar, and therefore the positioning ring is guaranteed to be installed on the base, and the axis of the positioning ring can coincide with the axis of the positioning hole all the time.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged partial schematic view of portion A of FIG. 1;
fig. 3 is a schematic sectional view along a-a in fig. 2.
In the figure, 1, a machine body; 11. a base; 12. a lower end fixing device; 13. a side bracket; 14. a stretching table; 15. an upper end fixing device; 16. a cylinder; 17. a base plate; 171. positioning holes; 2. an auxiliary fixing device; 21. a base; 211. positioning a screw rod; 212. positioning a nut; 213. a gasket; 214. rubbing the lines; 215. positioning the bolt; 216. a placing groove; 217. a reinforcing groove; 22. a positioning ring; 221. positioning a groove; 222. a mounting block; 223. a reinforcing plate; 23. a positioning pad; 231. and adjusting the bolt.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the reinforcing steel bar tensile strength testing machine disclosed by the utility model comprises a machine body 1, wherein a base 11 is fixedly connected to the bottom end of the machine body 1, a lower end fixing device 12 is installed in the middle of the base 11, and two side supports 13 are fixedly connected to two sides of the machine body 1; a stretching table 14 is connected between the two side brackets 13 in a sliding manner, an upper end fixing device 15 is installed in the middle of the bottom surface of the stretching table 14, and the upper end fixing device 15 and the lower end fixing device 12 are identical in structure and are matched for use; the top of the machine body 1 is fixedly connected with a cylinder 16 and is fixedly connected with the stretching table 14 through a piston rod.
Referring to fig. 1 and 2, a bottom plate 17 disposed above the lower end fixing device 12 is fixedly connected to the base 11, and a positioning hole 171 corresponding to the lower end fixing device 12 is formed in the middle of the bottom plate 17. In use, the bottom end of the reinforcing bar is first inserted through the positioning hole 171 to be coupled to the lower end fixture 12.
Referring to fig. 2, an auxiliary fixing device 2 is installed in the middle of the bottom plate 17, and the auxiliary fixing device 2 includes a base 21 slidably connected to the bottom plate 17 and a positioning ring 22 connected to the base 21 in an involutory manner; the base 21 is in a shape of a Chinese character 'tu', the convex surface of the base 21 faces the positioning ring 22, the base 21 slides on the bottom plate 17 along the direction opposite to or away from the positioning ring 22, and the base 21 is in threaded connection with a positioning bolt 215 which is abutted against the bottom plate 17 so as to fix the base 21 on the bottom plate 17; the positioning ring 22 is in an omega shape, the axis of the circular ring in the positioning ring 22 is always overlapped with the axis of the positioning hole 171, and the surface of the positioning ring 22 departing from the circular ring is in butt joint fit with the convex surface of the base 21.
Referring to fig. 2, the positioning pads 23 are mounted on the opposite surfaces of the base 21 and the positioning ring 22, the positioning pads 23 are rubber pads, the two positioning pads 23 are arc surfaces, the arc surfaces of the two positioning pads 23 are bent towards the opposite directions, and the arc surfaces on the positioning pads 23 are matched with the surface radian of the steel bar, so that the wrapping performance of the positioning pads 23 on the steel bar is improved; an adjusting bolt 231 in threaded connection with the positioning ring 22 is adhered to the positioning pad 23 of the positioning ring 22, and the axial direction of the positioning bolt 215 extends towards the base 21 to adjust the position of the positioning pad 23 to stabilize the steel bar.
Referring to fig. 2, two ends of the base 21 are respectively and rotatably connected with a positioning screw 211, the axial direction of the rotary connection position of the positioning screw 211 and the base 21 is parallel to the axial direction of the positioning hole 171, two ends of the positioning ring 22, which is connected with the base 21, are respectively provided with a positioning groove 221 matched with the positioning screw 211, and each positioning screw 211 is in threaded connection with a positioning nut 212; when the positioning screw 211 rotates into the corresponding positioning groove 221, the positioning nut 212 on the positioning screw 211 can be screwed to abut against the positioning ring 22, so that the positioning ring 22 can be quickly mounted on the base 21.
Referring to fig. 2, a gasket 213 is fixedly connected to one surface of each positioning nut 212 abutting against the positioning ring 22, the outer diameter of each gasket 213 is larger than that of each positioning nut 212, a friction grain 214 is arranged on one surface of each gasket 213 abutting against the positioning ring 22, and the friction grain 214 is a diagonal line arranged on the surface of each gasket 213 along the circumferential direction of the gasket 213, so that the friction force between the gasket 213 and the positioning ring 22 is increased.
Referring to fig. 2 and 3, a mounting groove 216 is formed in a connecting surface of the base 21 and the positioning ring 22, and a mounting block 222 adapted to the mounting groove 216 is fixedly connected to the connecting surface of the positioning ring 22 and the base 21; the mounting block 222 is fixedly provided with a reinforcing plate 223 perpendicular to the mounting block 222, and the mounting groove 216 is internally provided with a reinforcing groove 217 matched with the reinforcing plate 223. When the positioning ring 22 is connected with the base 21, the mounting block 222 on the positioning ring 22 can be inserted into the mounting groove 216 on the base 21, and the reinforcing plate 223 can also be placed in the reinforcing groove 217, so as to achieve the effect that the positioning ring 22 hooks the base 21.
The implementation principle of the embodiment is as follows: during the use, pass the bottom of reinforcing bar from the locating hole 171 earlier, then the reinforcing bar is fixed through upper end fixing device 15 and lower extreme fixing device 12, later with holding ring 22 cover on the reinforcing bar and be connected with base 21, then rotate adjusting bolt 231 and adjust the location pad 23 on the holding ring 22 to make two location pads 23 press from both sides the reinforcing bar tightly, thereby promote the reinforcing bar in tensile stability of in-process, ensure the accuracy of test result.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (7)
1. The utility model provides a reinforcing bar tensile strength testing machine, includes organism (1), installs base (11) in organism (1) bottom, installs lower extreme fixing device (12) at base (11), installs tensile platform (14) in organism (1) upper end and installs upper end fixing device (15) on tensile platform (14), its characterized in that: a bottom plate (17) arranged above the lower end fixing device (12) is arranged on the base (11), and a positioning hole (171) corresponding to the lower end fixing device (12) is formed in the bottom plate (17); be provided with supplementary fixing device (2) on bottom plate (17), supplementary fixing device (2) including install base (21) on bottom plate (17) and holding ring (22) be connected with base (21), the axis of holding ring (22) coincides with the axis of locating hole (171), both be equipped with locating pad (23) on the face of facing each other of base (21) and holding ring (22), be connected with adjusting bolt (231) with holding ring (22) threaded connection on locating pad (23) of holding ring (22), axial and bottom plate (17) sliding connection of adjusting bolt (231) are followed in base (21), threaded connection has positioning bolt (215) of contradicting with bottom plate (17) on base (21), the axial of positioning bolt (215) extends to base (21).
2. The reinforcing bar tensile strength testing machine of claim 1, characterized in that: two the cambered surface is all established to locating pad (23), and the cambered surface of two locating pads (23) is towards the direction bending that deviates from mutually.
3. The reinforcing bar tensile strength testing machine of claim 1, characterized in that: two ends of the base (21) are respectively and rotatably connected with a positioning screw rod (211), two ends of the positioning ring (22) which is connected with the base (21) are respectively provided with a positioning groove (221) which is matched with the positioning screw rod (211), and the positioning screw rod (211) is in threaded connection with a positioning nut (212); after the positioning screw rod (211) rotates into the positioning groove (221), the positioning nut (212) can be screwed to be pressed against the positioning ring (22).
4. The reinforcing bar tensile strength testing machine of claim 3, characterized in that: positioning nut (212) is in one side fixedly connected with gasket (213) of contradicting with holding ring (22), the external diameter of gasket (213) is greater than positioning nut (212)'s external diameter.
5. The reinforcing bar tensile strength testing machine of claim 4, characterized in that: and the gasket (213) is provided with friction grains (214) on one surface abutting against the positioning ring (22).
6. The reinforcing bar tensile strength testing machine of claim 1, characterized in that: the base (21) is provided with a placing groove (216) on the connecting surface with the positioning ring (22), and the positioning ring (22) is provided with a placing block (222) matched with the placing groove (216) on the connecting surface with the base (21).
7. The reinforcing bar tensile strength testing machine of claim 6, characterized in that: the mounting block (222) is fixedly provided with a reinforcing plate (223) perpendicular to the mounting block (222), and a reinforcing groove (217) matched with the reinforcing plate (223) is formed in the mounting groove (216).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020898659.4U CN212321293U (en) | 2020-05-25 | 2020-05-25 | Reinforcing bar tensile strength testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020898659.4U CN212321293U (en) | 2020-05-25 | 2020-05-25 | Reinforcing bar tensile strength testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212321293U true CN212321293U (en) | 2021-01-08 |
Family
ID=74022942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020898659.4U Active CN212321293U (en) | 2020-05-25 | 2020-05-25 | Reinforcing bar tensile strength testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212321293U (en) |
-
2020
- 2020-05-25 CN CN202020898659.4U patent/CN212321293U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 1919, Shuanghe East Road, Laishan District, Yantai City, Shandong Province Patentee after: Yantai Construction Engineering Testing Service Center Co.,Ltd. Address before: No. 1919, Shuanghe East Road, Laishan District, Yantai City, Shandong Province Patentee before: Yantai Construction Engineering Testing Service Center |
|
| CP01 | Change in the name or title of a patent holder |