Auxiliary positioning mechanism for detecting tensile strength of reinforcing steel bar

Abstract

The utility model relates to the technical field of reinforcing steel bar tensile strength detection, and discloses an auxiliary positioning mechanism for reinforcing steel bar tensile strength detection, the auxiliary positioning mechanism comprises a bottom plate and a clamping piece, the top of the bottom plate is provided with a connecting assembly, and the connecting assembly comprises a mounting block slidably connected to the top of the bottom plate; a T-shaped assembly for guiding the mounting block is arranged at the bottom of the mounting block, a connecting groove is formed in the top of the mounting block, a connecting block slidably connected with the connecting groove is fixedly mounted at the bottom of the clamping piece, and a penetrating groove penetrating to the right side of the connecting block is formed in the left side of the connecting block; and two vertical plates are fixedly mounted between the inner top wall and the inner wall of the through groove. According to the auxiliary positioning mechanism for detecting the tensile strength of the reinforcing steel bar, the clamping piece can be rapidly mounted and dismounted by arranging the connecting assembly, when the clamping piece is abraded, the clamping piece can be rapidly replaced through the connecting assembly, the situation that the reinforcing steel bar is clamped unstably is prevented, and therefore the accuracy of measured data is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar tensile strength detection, in particular to an auxiliary positioning mechanism for steel bar tensile strength detection. Background Art

[0002] Rebar tensile strength testing is a test method used to determine the tensile strength of rebar. This test is usually used to ensure that the rebar meets design and construction standards. Especially in concrete structures, rebar is a key building material. When testing the tensile strength of rebar, the rebar needs to be effectively fixed and then stretched to obtain the most accurate tensile strength test value of the rebar.

[0003] According to an auxiliary positioning device for tensile strength detection of steel bars proposed by Chinese patent announcement No. CN216747149U, the steel bars can be effectively clamped by the clamping parts, that is, the clamping parts are set as V-shaped clamping ends, so that when the steel bars are clamped, the clamping force applied to the steel bars is the clamping force in four directions, and under the condition of ensuring that the steel bars are set horizontally, it can be ensured that the pressure on the steel bars in all directions is consistent, so that the steel bars can be effectively clamped, and because the two inclined clamping end faces of the V-shaped clamping end are between the vertical clamping end faces, when clamping some non-circular steel bars, the non-circular steel bars can also be clamped through the vertical clamping end faces, so as to ensure that the adaptability of the device is better, and a leveling part is also provided between the two clamping parts, when the steel bars are installed During the installation operation, the steel bar is first leveled by the leveling piece so that the two ends of the steel bar can be in a horizontal state at the center position of the two clamping pieces. At this time, the steel bar is clamped by the clamping piece to ensure that the two ends of the steel bar are also in a horizontal state, so that the steel bar can be stretched horizontally when it is stretched, thereby avoiding the problem of the steel bar being tilted and stretched when it is stretched. The application document can ensure that the steel bar is in a horizontal position when used, and at the same time, the steel bar is stably clamped. However, after a period of use, the friction between the clamping piece and the steel bar will cause the clamping piece to wear to a certain extent, resulting in unstable clamping of the steel bar, which further leads to the problem of inaccurate measurement data. Therefore, an auxiliary positioning mechanism for steel bar tensile strength detection is proposed to solve the above problem. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an auxiliary positioning mechanism for detecting the tensile strength of steel bars, which has the advantages of easy and quick replacement of clamping parts, and solves the problem that the clamping parts of the existing positioning mechanism will produce certain wear, resulting in unstable clamping of the steel bars, which further leads to inaccurate measurement data.

[0005] In summary, the utility model provides the following technical solutions: an auxiliary positioning mechanism for steel bar tensile strength detection, comprising a base plate and a clamping member, wherein a connecting assembly is arranged on the top of the base plate.

[0006] The connecting component includes a mounting block slidably connected to the top of the base plate, a T-shaped component for guiding the mounting block is provided at the bottom of the mounting block, a connecting groove is provided at the top of the mounting block, a connecting block slidably connected to the connecting groove is fixedly installed at the bottom of the clamping member, a through groove is provided on the left side of the connecting block and extends to the right side thereof, two vertical plates are fixedly installed between the inner top wall and the inner wall of the through groove, threaded rods are provided inside the two vertical plates, and positioning blocks are threadedly connected to the outer sides of the two threaded rods, sliding components for limiting the two positioning blocks are provided at the top and bottom of the two positioning blocks, positioning grooves slidably connected to the positioning blocks are provided on the left and right sides of the inner cavity of the connecting groove, and a driving component is provided on the front side of the connecting block.

[0007] The utility model adopts the above technical solution, and under the action of the two positioning grooves, the connection block can be installed and disassembled by moving the two positioning blocks on one side or on the other side, thereby installing and disassembling the clamping member, which is convenient for replacing the clamping member.

[0008] Furthermore, the driving assembly includes a rotating rod rotatably connected to the front side of the connecting block and penetrating into the inside of the through slot, a knob is fixedly mounted on the front side of the rotating rod, and a transmission assembly is arranged on the outer side of the rotating rod.

[0009] The beneficial effect of adopting the above further solution is that by rotating the knob, the two threaded rods can be rotated under the transmission action of the rotating rod and the transmission assembly.

[0010] Furthermore, there are two groups of the clamping members and the connecting components, and both are symmetrically distributed on the top of the base plate. A leveling component is provided on the top of the base plate.

[0011] The beneficial effect of adopting the above further solution is that the two ends of the steel bar can be clamped respectively by two groups of clamping members, and the two clamping members can be installed and removed respectively by two groups of connecting components.

[0012] Furthermore, the T-shaped assembly includes a T-shaped guide block fixedly mounted on the bottom of the mounting block, and the top of the base plate is provided with a T-shaped guide groove slidably connected to the T-shaped guide block.

[0013] The beneficial effect of adopting the above further solution is that the installation block is guided and limited by the T-shaped guide block and the T-shaped guide groove, ensuring that the movement of the installation block is more stable, and at the same time, it can also prevent the installation block from being separated from the base plate.

[0014] Furthermore, the front side of the connecting groove penetrates to the front side of the mounting block.

[0015] The beneficial effect of adopting the above further solution is that it ensures that the mounting block can be installed and removed through the top or front side of the connecting groove.

[0016] Furthermore, a rotation hole penetrating to the opposite side of the two vertical plates is opened on the opposite side, and the two threaded rods are rotatably connected to the inside of the two rotation holes through bearings respectively.

[0017] The beneficial effect of adopting the above further solution is that the two rotating holes and the two bearings can respectively ensure the stability of the rotation of the two threaded rods, thereby preventing the threaded rods from deviating to the left and right.

[0018] Furthermore, the sliding assembly includes a limiting block fixedly mounted on the bottom of the top of the positioning block, and the inner top wall and the inner bottom wall of the through groove are both provided with limiting grooves slidably connected to the limiting block.

[0019] The beneficial effect of adopting the above further solution is that the positioning block can be limited by the limiting block and the limiting groove, so as to prevent the positioning block from rotating and prevent the positioning block from being separated from the through groove.

[0020] Furthermore, the transmission assembly includes a driving bevel gear fixedly mounted on the outside of the rotating rod, and a driven bevel gear meshing with the driving bevel gear is fixedly mounted on opposite sides of the two threaded rods.

[0021] The beneficial effect of adopting the above further solution is that the rotating rod can drive the two threaded rods to rotate through the driving bevel gear and the driven bevel gear.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] The auxiliary positioning mechanism for steel bar tensile strength detection can quickly install and disassemble the clamping part by setting a connecting component. When the clamping part is worn, the clamping part can be quickly replaced through the connecting component to prevent the steel bar from being clamped unstably, thereby ensuring the accuracy of the measurement data. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the utility model;

[0025] Figure 2 It is a schematic diagram of the top view of the connecting component in the utility model;

[0026] Figure 3 For this utility model Figure 1 Schematic diagram of the enlarged structure of part A in the middle.

[0027] Description of reference numerals:

[0028] 1. Base plate; 2. Clamping piece; 3. Connecting assembly; 301. Mounting block; 302. T-shaped assembly; 303. Connecting groove; 304. Connecting block; 305. Through groove; 306. Vertical plate; 307. Threaded rod; 308. Positioning block; 309. Sliding assembly; 310. Positioning groove; 311. Driving assembly; 3111. Rotating rod; 3112. Knob; 3113. Transmission assembly; 4. Leveling assembly. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-3 In this embodiment, an auxiliary positioning mechanism for detecting the tensile strength of a steel bar includes a base plate 1 and a clamping member 2, and a connecting component 3 is arranged on the top of the base plate 1.

[0031] like Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, the connecting component 3 includes a mounting block 301 slidably connected to the top of the base plate 1, a T-shaped component 302 is provided at the bottom of the mounting block 301 to guide it, a connecting groove 303 is provided at the top of the mounting block 301, and a connecting block 304 slidably connected to the connecting groove 303 is fixedly installed at the bottom of the clamping member 2.

[0032] Among them, the T-shaped component 302 includes a T-shaped guide block fixedly installed at the bottom of the mounting block 301, and a T-shaped guide groove slidably connected to the T-shaped guide block is opened on the top of the base plate 1. The mounting block 301 is guided and limited by the T-shaped guide block and the T-shaped guide groove to ensure that the movement of the mounting block 301 is more stable, and at the same time, it can also prevent the mounting block 301 from detaching from the base plate 1.

[0033] It should be noted that the sliding of the mounting block 301 can drive the clamping member 2 to move, and the clamping member 2 can fix the steel bar. The tensile strength of the steel bar can be tested through the movement of the clamping member 2.

[0034] In addition, the front side of the connection groove 303 penetrates through the front side of the mounting block 301 , ensuring that the mounting block 301 can be installed and removed through the top or front side of the connection groove 303 .

[0035] like Figure 1, Figure 2 and Figure 3 As shown, in this embodiment, a through groove 305 is provided on the left side of the connecting block 304 and extends to the right side thereof, two vertical plates 306 are fixedly installed between the inner top wall and the inner wall of the through groove 305, threaded rods 307 are provided inside the two vertical plates 306, and a driving assembly 311 is provided on the front side of the connecting block 304.

[0036] Among them, the two vertical plates 306 are each provided with a rotation hole extending through the opposite side thereof, and the two threaded rods 307 are respectively rotatably connected to the inside of the two rotation holes through bearings. The two rotation holes and the two bearings can ensure the rotation stability of the two threaded rods 307 and prevent the threaded rods 307 from shifting left and right.

[0037] It should be noted that the driving assembly 311 includes a rotating rod 3111 rotatably connected to the front side of the connecting block 304 and extending into the through slot 305 . A knob 3112 is fixedly mounted on the front side of the rotating rod 3111 , and a transmission assembly 3113 is disposed on the outer side of the rotating rod 3111 .

[0038] The back side of the rotating rod 3111 is rotatably connected to the rear side wall of the inner cavity of the through slot 305 to ensure the stability of the rotation of the rotating rod 3111. When the knob 3112 is rotated, the knob 3112 will drive the rotating rod 3111 to rotate.

[0039] In addition, the transmission assembly 3113 includes a driving bevel gear fixedly installed on the outside of the rotating rod 3111, and a driven bevel gear meshing with the driving bevel gear is fixedly installed on the opposite side of the two threaded rods 307. When the rotating rod 3111 rotates, the rotating rod 3111 will drive the driving bevel gear to rotate, and the driving bevel gear will drive the two driven bevel gears meshing with it to rotate, and the two driven bevel gears will respectively drive the two threaded rods 307 to rotate. Through the driving bevel gear and the driven bevel gear, the rotating rod 3111 can drive the two threaded rods 307 to rotate.

[0040] like Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, the outer sides of the two threaded rods 307 are threadedly connected with positioning blocks 308, the tops and bottoms of the two positioning blocks 308 are provided with sliding components 309 for limiting them, and the left and right sides of the inner cavity of the connecting groove 303 are provided with positioning grooves 310 that are slidably connected to the positioning blocks 308.

[0041] Among them, the sliding assembly 309 includes a limit block fixedly installed at the bottom of the top of the positioning block 308, and the inner top wall and the inner bottom wall of the through-groove 305 are both provided with limit grooves slidably connected to the limit block. The positioning block 308 can be limited by the limit block and the limit groove to prevent the positioning block 308 from rotating and prevent the positioning block 308 from separating from the through-groove 305. When the two threaded rods 307 rotate, under the action of the threaded thrust, the two threaded rods 307 will respectively drive the two positioning blocks 308 to move to the opposite side or the opposite side.

[0042] like Figure 1 As shown, in this embodiment, there are two groups of clamping members 2 and connecting components 3, and both are symmetrically distributed on the top of the base plate 1. A leveling component 4 is provided on the top of the base plate 1.

[0043] The two ends of the steel bar can be clamped respectively by two sets of clamping members 2, and the two clamping members 2 can be installed and removed respectively by two sets of connecting components 3.

[0044] It should be noted that the clamping member 2 includes a V-shaped clamping end, an inclined clamping end face and a vertical clamping end face. The clamping force applied to the steel bar by the V-shaped clamping end and the inclined clamping end face is a clamping force in four directions, making the steel bar clamping more stable. The vertical clamping end face allows the clamping member 2 to stably clamp non-circular steel bars.

[0045] In addition, the leveling assembly 4 includes two leveling plates, a slide groove and a bidirectional screw transmission mechanism. The two leveling plates are respectively threadedly arranged at the two ends of the bidirectional screw transmission mechanism with opposite thread directions. The thread thrust of the bidirectional screw transmission mechanism can make the two leveling plates move synchronously along the slide groove, so that the two leveling plates can clamp the steel bars so that the two ends of the steel bars can be in a horizontal state at the center position of the two clamping parts 2.

[0046] The working principle of the above embodiment is:

[0047] The auxiliary positioning mechanism for steel bar tensile strength detection, when the clamping member 2 needs to be replaced, the knob 3112 is turned, the knob 3112 will drive the rotating rod 3111 to rotate, the rotating rod 3111 will drive the active bevel gear to rotate, the active bevel gear will drive the two driven bevel gears meshing therewith to rotate, the two driven bevel gears will respectively drive the two threaded rods 307 to rotate, under the action of the thread thrust, the two threaded rods 307 will respectively drive the two positioning blocks 308 to move to the opposite side, when the two positioning blocks 308 are respectively aligned with the two positioning grooves 310 When disengaging, the connecting block 304 can be removed from the top or front of the connecting groove 303, so that the clamping member 2 can be disassembled. When installing the clamping member 2, the connecting block 304 is slidably connected to the inside of the connecting groove 303 through the top or front of the connecting groove 303, and then the knob 3112 is rotated in the opposite direction. According to the above principle, the two positioning blocks 308 can be moved to the back side. When the two positioning blocks 308 enter the two positioning grooves 310 respectively, the connecting block 304 is fixed inside the connecting groove 303, so that the clamping member 2 can be fixed.

Claims

1. An auxiliary positioning mechanism for steel bar tensile strength testing, comprising a base plate (1) and a clamping member (2), characterized in that: A connecting component (3) is provided on the top of the bottom plate (1); The connecting assembly (3) comprises a mounting block (301) slidably connected to the top of the base plate (1); a T-shaped assembly (302) for guiding the mounting block (301) is arranged at the bottom; a connecting groove (303) is provided at the top of the mounting block (301); a connecting block (304) slidably connected to the connecting groove (303) is fixedly installed at the bottom of the clamping member (2); a through groove (305) is provided on the left side of the connecting block (304) and extends to the right side thereof; a top wall of the through groove (305) and an inner wall of the through groove (305) are connected to each other. Two vertical plates (306) are fixedly installed in the space between the two vertical plates (306), the interior of the two vertical plates (306) is provided with a threaded rod (307), the outer sides of the two threaded rods (307) are threadedly connected to positioning blocks (308), the tops and bottoms of the two positioning blocks (308) are provided with sliding components (309) for limiting the positioning thereof, the left and right sides of the inner cavity of the connecting groove (303) are provided with positioning grooves (310) slidably connected to the positioning blocks (308), and the front side of the connecting block (304) is provided with a driving component (311).

2. The auxiliary positioning mechanism for steel bar tensile strength detection according to claim 1, characterized in that: The driving assembly (311) comprises a rotating rod (3111) rotatably connected to the front side of the connecting block (304) and extending through the interior of the through slot (305); a knob (3112) is fixedly mounted on the front side of the rotating rod (3111); and a transmission assembly (3113) is disposed on the outer side of the rotating rod (3111).

3. The auxiliary positioning mechanism for steel bar tensile strength detection according to claim 1, characterized in that: The clamping members (2) and the connecting components (3) are each in two groups, and are both located on the top of the base plate (1) and are symmetrically distributed. A leveling component (4) is provided on the top of the base plate (1).

4. The auxiliary positioning mechanism for steel bar tensile strength detection according to claim 1, characterized in that: The T-shaped component (302) comprises a T-shaped guide block fixedly mounted on the bottom of the mounting block (301), and a T-shaped guide groove slidably connected to the T-shaped guide block is provided on the top of the bottom plate (1).

5. The auxiliary positioning mechanism for steel bar tensile strength detection according to claim 1, characterized in that: The front side of the connection groove (303) penetrates to the front side of the mounting block (301).

6. The auxiliary positioning mechanism for steel bar tensile strength detection according to claim 1, characterized in that: A rotation hole is provided on the opposite side of the two vertical plates (306) and penetrates to the opposite side thereof, and the two threaded rods (307) are rotatably connected to the inside of the two rotation holes via bearings respectively.

7. The auxiliary positioning mechanism for steel bar tensile strength detection according to claim 1, characterized in that: The sliding assembly (309) comprises a limit block fixedly mounted at the bottom of the top of the positioning block (308), and the inner top wall and the inner bottom wall of the through groove (305) are both provided with limit grooves slidably connected to the limit block.

8. The auxiliary positioning mechanism for steel bar tensile strength detection according to claim 2, characterized in that: The transmission assembly (3113) comprises a driving bevel gear fixedly mounted on the outside of the rotating rod (3111), and a driven bevel gear meshing with the driving bevel gear is fixedly mounted on opposite sides of the two threaded rods (307).

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