Reinforcing steel bar welded mesh shearing resistance detection device for reinforced concrete

Abstract

The utility model relates to the technical field of steel bar mesh detection, in particular to a steel bar welded mesh shearing resistance detection device for reinforced concrete, which comprises a lower clamp, the lower clamp is used for clamping a vertical rod of a steel bar sample, the steel bar sample further comprises a transverse rod, and the transverse rod is welded at the upper end of the vertical rod; the cross rod is hung on the hook; the lower clamp comprises an extruding assembly and a clamping assembly, the extruding assembly extrudes the clamping assembly to clamp and fix the vertical rod, the extruding assembly comprises a cross beam, the two ends of the cross beam are fixedly connected with connecting bases, a driving assembly is arranged on the side edge of the cross beam, and a locking assembly is arranged on the lower side of the driving assembly. The steel bar sample clamping device can adapt to clamping of steel bar samples with different diameters, the universality of the detection device is improved, and the left clamping plate and the right clamping plate can move downwards when getting close to each other, so that the steel bar samples are driven to move downwards in the steel bar sample clamping process, and the steel bar samples are prevented from being separated from the hook.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel bar net sheet detection technical field, especially in steel bar net for reinforced concrete is welded net anti -shear detection device. BACKGROUND

[0002] Steel bar net sheet is also called steel bar net, steel bar welded net, steel bar welded net sheet, etc., is longitudinal reinforcement and transverse reinforcement respectively with certain interval arrangement and each other right angle, all cross points are welded together net sheet. In our country steel bar net sheet application is still in the initial stage, the proportion of the total amount of steel bar of the application amount is less. Steel bar net sheet its market application prospect is very broad, and, steel bar welded net is suitable for factory, large -scale production, is the new industry of high benefit, meets the environmental protection requirement, adapts to the industrialization development trend of building industry.

[0003] For steel bar net sheet, has various performance requirements, for example surface state, connection angle, steel bar strength, welding strength etc. In each performance requirement of steel bar net sheet, the strength of steel bar net sheet staggered welding point is particularly important, usually adopts net sheet anti -shear test to carry out test.

[0004] Because steel bar net sheet is staggered structure of vertical and horizontal, so it is quite inconvenient to clamp the sample of steel bar net, and after clamping the steel bar sample, it is necessary to apply large shear force for detection, and it is necessary to maintain stable clamping action to maintain the stability of clamping and pulling force. During clamping, usually cooperate with appropriate steel bar clamping die to install, the horizontal rod of steel bar sample is hung by die, and the vertical rod is clamped by hydraulic embedding device, and during clamping process, the current commonly used hydraulic clamp is easy to appear unstable clamping, and the steel bar is easy to produce the condition that the amplitude of up and down movement is too large, so that the horizontal rod of steel bar is easy to separate from the hook of die, and it is necessary to try many times, and the operation is often inconvenient. UTILITY MODEL CONTENTS

[0005] In view of the above situation, in order to overcome the defects of prior art, the utility model provides a steel bar welded net anti -shear detection device for reinforced concrete.

[0006] The utility model provides a steel bar welded net anti -shear detection device for reinforced concrete, including lower clamp, the vertical rod of steel bar sample is clamped by lower clamp, the steel bar sample still includes horizontal rod, the horizontal rod is welded on the vertical rod upper end, the horizontal rod is hung on the hook,

[0007] The lower clamp includes extrusion assembly and clamping assembly, and the extrusion assembly extrudes the clamping assembly to realize the clamping and fixing of the vertical rod, the extrusion assembly includes crossbeam, both ends of crossbeam are fixedly connected with connecting seat, the side of crossbeam is provided with drive assembly, the downside of drive assembly is provided with locking assembly,

[0008] The left and right ends of the cross beam are respectively sleeved with a left sliding sleeve and a right sliding sleeve, the upper end of the left sliding sleeve is rotationally connected with a left roller, the upper end of the right sliding sleeve is rotationally connected with a right roller, and the left roller and the right roller are arranged on the two sides of the clamping assembly.

[0009] Further, the lower side of the left sliding sleeve is fixedly connected with a left rack, the upper side of the right sliding sleeve is fixedly connected with a right rack, and the left rack and the right rack are connected with a driving assembly.

[0010] The driving assembly comprises a gear, the gear is simultaneously meshingly connected between the left rack and the right rack, the gear is coaxially fixedly connected with a ratchet wheel, and the side, away from the gear, of the ratchet wheel is fixedly connected with a handle.

[0011] Further, the lower side of the ratchet wheel is connected with a locking assembly, the locking assembly comprises a sliding shell fixedly connected to the lower side of the cross beam, a sliding rod is slidingly connected in the sliding shell, the upper end of the sliding rod is provided with a clamping tooth, the clamping tooth is clamped on the ratchet teeth uniformly distributed on the outer circumference of the ratchet wheel, and a spring is arranged between the clamping tooth and the sliding shell.

[0012] Further, the clamping assembly comprises a bottom plate, the bottom plate is arranged in contact with the upper side of the cross beam, the left end of the bottom plate is rotationally connected with a left rotating plate, the lower side of the left rotating plate is provided with a left rib plate, the end of the left rib plate is hingedly connected with a left clamping plate, the right end of the bottom plate is rotationally connected with a right rotating plate, the lower side of the right rotating plate is provided with a right rib plate, the end of the right rib plate is hingedly connected with a right clamping plate, the upper side of the left rotating plate is in abutment with the left roller, and the upper side of the right rotating plate is in abutment with the right roller.

[0013] Further, spring plates are arranged between the bottom plate and the left rotating plate and the right rotating plate.

[0014] Further, the left clamping plate is horizontally arranged in a "V" shape, two movable clamping plates are symmetrically arranged on the inside of the left clamping plate, and the hinging shafts of the two movable clamping plates are vertically arranged and hingedly connected with the inside of the left clamping plate.

[0015] Further, the inside of the movable clamping plate is provided with a left transverse groove, and the inside of the right clamping plate is provided with a right transverse groove.

[0016] The movable clamping plate is hingedly arranged on the left clamping plate, the two movable clamping plates can be slightly rotated, the detection device can be adapted to the clamping of steel bars of different diameters, and the universality of the detection device is improved.

[0017] When the left clamping plate and the right clamping plate are close to each other, a downward component motion is generated, so that the steel bar is driven to move downward during clamping, and the steel bar is prevented from being separated from the hook.

[0018] When the steel bar sample is detected, the clamping assembly has a tendency to move upward, and when the clamping assembly moves upward, the left clamping plate and the right clamping plate on the clamping assembly have a tendency to approach each other due to the restriction of the left sliding sleeve and the right sliding sleeve, so that the clamping force of the left clamping plate and the right clamping plate on the steel bar sample is larger, and the steel bar sample is prevented from being separated from the clamping assembly. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure schematic view of the utility model;

[0020] Figure 2 It is a clamp structure schematic view of the utility model;

[0021] Figure 3 It is a extrusion assembly structure schematic view of the utility model;

[0022] Figure 4 It is a extrusion assembly internal structure schematic view of the utility model;

[0023] Figure 5 It is a utility model Figure 4 It is a structure schematic view of A place in the utility model;

[0024] Figure 6 It is a clamping assembly structure schematic view of the utility model;

[0025] Figure 7 It is another view structure schematic view of the clamping assembly of the utility model.

[0026] Wherein, 1 clamp, 11 connecting seat, 12 drive assembly, 121 handle, 122 ratchet wheel, 1221 ratchet tooth, 123 gear, 13 locking assembly, 131 sliding shell, 132 sliding rod, 1321 pawl, 133 spring, 14 extrusion assembly, 15 crossbeam, 152 right sliding sleeve, 1521 right roller, 1522 right rack, 153 left sliding sleeve, 1531 left roller, 1532 left rack;

[0027] 2 steel bar sample, 21 vertical rod, 22 horizontal rod; 3 hook;

[0028] 4 clamping assembly, 41 bottom plate, 42 right rotating plate, 421 right rib plate, 43 spring plate, 44 left clamping plate, 441 movable clamping plate, 442 left horizontal groove, 443 hinged shaft, 45 right clamping plate, 451 right horizontal groove, 46 left rotating plate, 461 left rib plate.

[0029] The drawings are used to provide further understanding of the utility model, and constitute a part of the specification, and are used together with the embodiments of the utility model to explain the utility model, and do not constitute the limitation of the utility model. DETAILED DESCRIPTION

[0030] Clearly, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments; based on the embodiments in the present application, all the other embodiments obtained by those ordinarily skilled in the art without creative labor fall within the protection scope of the present application.

[0031] As shown in Figures 1-7 The utility model provides a reinforced concrete is with steel bar welded mesh anti -shear detection device, including lower clamp 1, lower clamp 1 clamps the vertical pole 21 of steel bar pattern 2, steel bar pattern 2 still includes crossbeam 22, crossbeam 22 is welded on the vertical pole 21 upper end, crossbeam 22 is hung in the hook 3, lower clamp 1 and hook 3 are arranged on the tension mechanism of monitoring device respectively, and the shear strength of crossbeam 22 and vertical pole 21 is monitored through the tension mechanism of monitoring device, and the detection device is prior art, and here will not repeat.

[0032] Lower clamp 1 includes extrusion subassembly 14 and clamping subassembly 4, and extrusion subassembly 14 extrudes clamping subassembly 4 to realize the clamping fixation to vertical pole 21, extrusion subassembly 14 includes crossbeam 15, both ends of crossbeam 15 are fixedly connected with connecting seat 11, connecting seat 11 is connected with the tension mechanism of detection device, the side of crossbeam 15 is provided with drive assembly 12, the downside of drive assembly 12 is provided with locking assembly 13;

[0033] Referring to Figures 3-4 Crossbeam 15 left and right two ends are slidably sleeved with left slide sleeve 153 and right slide sleeve 152 respectively, the upper end of left slide sleeve 153 is rotatably connected with left roller 1531, the upper end of right slide sleeve 152 is rotatably connected with right roller 1521, left roller 1531 and right roller 1521 are arranged at the two sides of clamping subassembly 4.

[0034] Further, the downside of left slide sleeve 153 is fixedly connected with left rack 1532, the upside of right slide sleeve 152 is fixedly connected with right rack 1522, left rack 1532 and right rack 1522 are connected with drive assembly 12;

[0035] The driving assembly 12 comprises a gear 123 which is engaged with a left rack 1532 and a right rack 1522 at the same time, the gear 123 is coaxially fixedly connected with a ratchet wheel 122, and the side, away from the gear 123, of the ratchet wheel 122 is fixedly connected with a handle 121. The handle 121 is rotated to drive the gear 123 to rotate, and the gear 123 drives the left rack 1532 and the right rack 1522 to move in opposite directions, thereby driving the left sliding sleeve 153 and the right sliding sleeve 152 to move close to or away from each other, and when the left sliding sleeve 153 and the right sliding sleeve 152 move close to each other, the left sliding sleeve 153 and the right sliding sleeve 152 drive the clamping assembly 4 to clamp the steel bar pattern 2.

[0036] Further, referring to Figure 5 , the lower side of the ratchet wheel 122 is connected with a locking assembly 13, the locking assembly 13 comprises a sliding shell 131 fixedly connected to the lower side of the cross beam 15, a slide rod 132 is slidingly connected in the sliding shell 131, the upper end of the slide rod 132 is provided with a clamping tooth 1321, the clamping tooth 1321 is clamped on the ratchet teeth 1221 uniformly distributed on the outer circumference of the ratchet wheel 122, and a spring 133 is arranged between the clamping tooth 1321 and the sliding shell 131. When working, due to the clamping action of the clamping tooth 1321 and the ratchet tooth 1221, the ratchet wheel 122 can only rotate in one direction, the ratchet wheel 122 and the gear 123 are fixedly connected, and the gear 123 can only rotate in one direction, when the handle 121 drives the ratchet wheel 122 and the gear 123 to rotate, the left sliding sleeve 153 and the right sliding sleeve 152 move close to each other, and the left sliding sleeve 153 and the right sliding sleeve 152 drive the clamping assembly 4 to clamp the steel bar pattern 2. When it is needed to loosen the left sliding sleeve 153 and the right sliding sleeve 152, the slide rod 132 is only needed to be pulled outward, so that the clamping tooth 1321 and the ratchet tooth 1221 are separated from each other, at this time the ratchet wheel 122 can be freely rotated, the handle 121 is reversely rotated, the gear 123 is reversely rotated, at this time the left sliding sleeve 153 and the right sliding sleeve 152 move away from each other, and the clamping assembly 4 is no longer pressed.

[0037] Further, referring to Figures 6-7 , the clamping assembly 4 comprises a bottom plate 41, the bottom plate 41 is arranged in contact with the upper side of the cross beam 15, the left end of the bottom plate 41 is rotatably connected with a left rotating plate 46, the lower side of the left rotating plate 46 is provided with a left rib plate 461, the end of the left rib plate 461 is hingedly connected with a left clamping plate 44, the right end of the bottom plate 41 is rotatably connected with a right rotating plate 42, the lower side of the right rotating plate 42 is provided with a right rib plate 421, the end of the right rib plate 421 is hingedly connected with a right clamping plate 45, the upper side of the left rotating plate 46 is in abutment with a left roller 1531, and the upper side of the right rotating plate 42 is in abutment with a right roller 1521.

[0038] Further, the spring plates 43 are arranged between the bottom plate 41 and the left rotating plate 46 and the right rotating plate 42. The spring plates 43 drive the left rotating plate 46 and the right rotating plate 42 to rotate in the direction away from each other.

[0039] Further, the left clamping plate 44 is horizontally placed in a "V" shape, two movable clamping plates 441 are symmetrically arranged on the inside of the left clamping plate 44, and the two movable clamping plates 441 are hinged to the inside of the left clamping plate 44 and the hinge shafts 443 are vertically arranged. The movable clamping plates 441 are hingedly arranged on the left clamping plate 44, and the two movable clamping plates 441 can be slightly rotated to adapt to the clamping of steel bar patterns 2 of different diameters, thereby improving the versatility of the detection device.

[0040] Further, the inside of the movable clamping plate 441 is provided with a left transverse groove 442, and the inside of the right clamping plate 45 is provided with a right transverse groove 451.

[0041] In operation, the steel bar pattern 2 is placed between the two movable clamping plates 441 and the right clamping plate 45, and by operating the handle 121 to drive the ratchet 122 and the gear 123 to rotate, the left sliding sleeve 153 and the right sliding sleeve 152 are brought close to each other, the left roller 1531 on the left sliding sleeve 153 presses the left rotating plate 46, the right roller 1521 on the right sliding sleeve 152 presses the right rotating plate 42, thereby driving the left rotating plate 46 and the right rotating plate 42 to overturn, the left rotating plate 46 and the right rotating plate 42 overturning drive the left clamping plate 44 and the right clamping plate 45 to move close to each other, and the left clamping plate 44 and the right clamping plate 45 move close to each other with a downward movement, thereby driving the steel bar pattern 2 to move downward during clamping the steel bar pattern 2, preventing the steel bar pattern 2 from disengaging the hook 3.

[0042] When detecting, the steel bar pattern 2 will drive the clamping assembly 4 to have a tendency to move upward, and when the clamping assembly 4 moves upward, due to the limitation of the left sliding sleeve 153 and the right sliding sleeve 152, the left clamping plate 44 and the right clamping plate 45 on the clamping assembly 4 have a tendency to move close to each other, thereby making the clamping force of the left clamping plate 44 and the right clamping plate 45 on the steel bar pattern 2 greater, preventing the steel bar pattern 2 from disengaging the clamping assembly 4.

[0043] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A reinforced concrete welded steel bar shear resistance detection device, comprising a lower clamp (1) clamping a vertical rod (21) of a steel bar sample (2), the steel bar sample (2) further comprising a horizontal rod (22) welded on the upper end of the vertical rod (21); the horizontal rod (22) is hung on a hook (3); characterized in that: the lower clamp (1) comprises a pressing assembly (14) and a clamping assembly (4), the pressing assembly (14) presses the clamping assembly (4) to achieve clamping and fixing of the vertical rod (21), the pressing assembly (14) comprises a cross beam (15), both ends of the cross beam (15) are fixedly connected with connecting seats (11), the side of the cross beam (15) is provided with a driving assembly (12), the lower side of the driving assembly (12) is provided with a locking assembly (13); the left and right ends of the cross beam (15) are respectively slidably sleeved with a left sliding sleeve (153) and a right sliding sleeve (152), the upper end of the left sliding sleeve (153) is rotatably connected with a left roller (1531), the upper end of the right sliding sleeve (152) is rotatably connected with a right roller (1521), the left roller (1531) and the right roller (1521) are arranged on both sides of the clamping assembly (4).

2. The apparatus for detecting the shearing resistance of a welded wire fabric for reinforced concrete according to claim 1, characterized in that: the lower side of the left sliding sleeve (153) is fixedly connected with a left rack (1532), the upper side of the right sliding sleeve (152) is fixedly connected with a right rack (1522), the left rack (1532) and the right rack (1522) are connected with the driving assembly (12); the driving assembly (12) comprises a gear (123), the gear (123) is connected between the left rack (1532) and the right rack (1522) at the same time, the gear (123) is coaxially fixedly connected with a ratchet wheel (122), one side of the ratchet wheel (122) away from the gear (123) is fixedly connected with a handle (121).

3. The apparatus for detecting the shearing resistance of a welded wire fabric for reinforced concrete according to claim 2, characterized in that: the lower side of the ratchet wheel (122) is connected with the locking assembly (13), the locking assembly (13) comprises a sliding shell (131) fixedly connected on the lower side of the cross beam (15), the sliding shell (131) is slidably connected with a sliding rod (132), the upper end of the sliding rod (132) is provided with a clamping tooth (1321), the clamping tooth (1321) is clamped on the ratchet teeth (1221) uniformly distributed on the outer circumference of the ratchet wheel (122), the spring (133) is arranged between the clamping tooth (1321) and the sliding shell (131).

4. The apparatus for detecting the shearing resistance of a welded wire fabric for reinforced concrete according to any one of claims 1 to 3, characterized in that: The clamping assembly (4) comprises a bottom plate (41) which is arranged on the upper side of the cross beam (15), the left end of the bottom plate (41) is rotatably connected with a left rotating plate (46), the lower side of the left rotating plate (46) is provided with a left rib plate (461), the end of the left rib plate (461) is hingedly connected with a left clamping plate (44), the right end of the bottom plate (41) is rotatably connected with a right rotating plate (42), the lower side of the right rotating plate (42) is provided with a right rib plate (421), the end of the right rib plate (421) is hingedly connected with a right clamping plate (45), the upper side of the left rotating plate (46) abuts against a left roller (1531), and the upper side of the right rotating plate (42) abuts against a right roller (1521).

5. The apparatus for detecting the shearing resistance of a welded wire fabric for reinforced concrete according to claim 4, characterized in that: The bottom plate (41) is provided with a spring plate (43) between the left rotating plate (46) and the right rotating plate (42).

6. The apparatus for detecting the shearing resistance of a welded wire fabric for reinforced concrete according to claim 5, characterized in that: The left clamping plate (44) is horizontally arranged in a "V" shape, two movable clamping plates (441) are symmetrically arranged inside the left clamping plate (44), the movable clamping plates (441) are hingedly connected with the inner side of the left clamping plate (44), and the hinge shafts (443) are vertically arranged.

7. The apparatus for detecting the shearing resistance of a welded wire fabric for reinforced concrete according to claim 6, characterized in that: The inner side of the movable clamping plate (441) is provided with a left horizontal groove (442), and the inner side of the right clamping plate (45) is provided with a right horizontal groove (451).

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