CN209945866U

CN209945866U - Bridge construction is with crab-bolt tensile strength detection device that pulls out

Info

Publication number: CN209945866U
Application number: CN201821848236.0U
Authority: CN
Inventors: 卫洁; 许小琴; 马旭; 孟志军; 陈晓帆
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-11-11
Filing date: 2018-11-11
Publication date: 2020-01-14
Anticipated expiration: 2028-11-11

Abstract

The utility model relates to the technical field of anti-pulling strength detection, in particular to an anti-pulling strength detection device for an anchor bolt for bridge construction, which can be conveniently moved, save physical force during movement and reduce labor intensity; meanwhile, the device components can be relatively shielded, so that the cleaning times are reduced, and the usability is improved; the friction force between the connecting rope and the pulley in the moving process is reduced, and the use reliability is improved; the device comprises a base, a bracket, a driving device, a driving rod, a placing plate, a connecting rope, a fixing buckle, a front connecting plate, a rear connecting plate and two groups of pulleys, wherein a tension detector is arranged on the driving device; the output ends of the two groups of fixing pieces are positioned below the base; the driving device and the bracket are respectively positioned at the inner sides of the first shielding piece and the second shielding piece; the two groups of front rotating shafts and the two groups of rear rotating shafts are also included, and the rear ends of the two groups of front rotating shafts are respectively connected with the front ends of the two groups of pulleys.

Description

Bridge construction is with crab-bolt tensile strength detection device that pulls out

Technical Field

The utility model relates to a technical field that tensile strength detected, especially relate to a bridge construction is with crab-bolt tensile strength detection device that pulls out.

Background

As is well known, an anchor bolt tensile strength detection device for bridge construction is an auxiliary device which is used for testing the tensile strength of an anchor bolt in the road and bridge construction process so as to ensure the construction quality, and is widely used in the field of road and bridge construction detection; the existing anchor bolt anti-pulling strength detection device for bridge construction comprises a base, a support, a driving device, a driving rod, a placing plate, a connecting rope, a fixing buckle, a front connecting plate, a rear connecting plate and two groups of pulleys, wherein the driving device and the support are respectively arranged on the left area and the right area of the top end of the base; when the existing anchor bolt tensile strength detection device for bridge construction is used, the device is moved to a designated area, a prefabricated part to be detected is located below a through hole, then, a driving device is controlled to drive a connecting plate on a driving rod to move upwards, a fixing buckle is made to move downwards until the fixing buckle is contacted with an anchor bolt on the prefabricated part, then, the fixing buckle is connected with the anchor bolt, and after connection is completed, the driving device is controlled to drive the connecting plate on the driving rod to move downwards, so that the fixing buckle is pulled to move upwards, tension is applied to the anchor bolt on the prefabricated part until the anchor bolt is pulled out of the prefabricated part, and the tension change and the tension value on an instant tension detector of pulling out of the anchor bolt are detected through the tension; the existing anchor bolt anti-pulling strength detection device for bridge construction is found to have larger weight, more physical effort during movement and higher labor degree in use; moreover, the device has more components, so that the dust falling from the upper surface of the device is troublesome to clean, and the usability is limited; and the connecting rope can rub against the pulley in the moving process, so that the service life of the connecting rope is shortened, and the use reliability is limited.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides a movable chair which can be moved conveniently, save the physical power during moving and reduce the labor intensity; meanwhile, the device components can be relatively shielded, so that the cleaning times are reduced, and the usability is improved; and the friction force between the connecting rope and the pulley in the moving process is reduced, and the use reliability is improved.

The utility model relates to a tensile strength detection device of anchor bolt for bridge construction, which comprises a base, a bracket, a driving device, a driving rod, a placing plate, a connecting rope, a fixing buckle, a front connecting plate, a rear connecting plate and two groups of pulleys, wherein the driving device and the bracket are respectively arranged on the left part area and the right part area of the top end of the base, the driving device is provided with a tension detector, the driving rod is arranged on the top output end of the driving device, the placing plate is arranged on the top end of the driving rod, the right part area of the top end of the base is provided with an opening, the fixing buckle is arranged between the bracket and the opening, the front connecting plate and the rear connecting plate are respectively arranged on the front side and the rear side of the top end of the bracket, the two groups of pulleys are, one end of the connecting rope is connected with the top end of the placing plate, and the other end of the connecting rope penetrates through the bracket and is connected with the top end of the fixing buckle; the four groups of rollers are respectively arranged on the left front side, the left rear side, the right front side and the right rear side of the bottom end of the base, the two groups of fixing pieces are respectively arranged on the left end and the right end of the base, and the output ends of the two groups of fixing pieces are positioned below the base; the device comprises a base, a driving device and a bracket, and is characterized by further comprising a first shielding piece and a second shielding piece, wherein the first shielding piece and the second shielding piece are respectively arranged on the left area and the right area of the top end of the base, and the driving device and the bracket are respectively positioned on the inner sides of the first shielding piece and the second shielding piece; the front connecting plate is characterized by further comprising two groups of front rotating shafts and two groups of rear rotating shafts, front slots are formed in the left half area and the right half area of the rear end of the front connecting plate, the two groups of front rotating shafts are arranged on the two groups of front slots respectively, the rear ends of the two groups of front rotating shafts are connected with the front ends of the two groups of pulleys respectively, rear slots are formed in the left half area and the right half area of the front end of the rear connecting plate respectively, the two groups of rear rotating shafts are arranged on the two groups of rear slots respectively, and the front ends of the two groups of rear rotating shafts are connected.

The utility model discloses a bridge construction is with crab-bolt tensile strength detection device, the mounting includes threaded rod, turning block and bottom plate, and the base top left and right sides all is provided with the screw thread mouth, and threaded rod spiral shell dress is on the screw thread mouth, and turning block and bottom plate set up respectively on threaded rod top and bottom.

The utility model relates to a bridge construction is with crab-bolt tensile strength detection device that pulls out, first shielding part includes left baffle, overhead gage, first transparent shutter, preceding extension board, back extension board and right extension board, left baffle sets up on base top left half region, and left baffle lies in the drive device left side, the overhead gage sets up on left baffle top, and preceding extension board, back extension board and right extension board set up respectively on overhead gage bottom front side, rear side and right side, and preceding extension board, back extension board and right extension board bottom respectively with support top left front side, base top rear side and support top middle part be connected, preceding extension board and back extension board left end respectively with left baffle right side upper end front side and right side rear end connection, preceding extension board and back extension board right-hand member respectively with right extension board left end front and back both sides, first transparent shutter articulates on left baffle, and first transparent shutter top contacts with preceding extension board bottom left side, the right end of the first transparent shutter is in contact with the front side of the left end of the bracket, and the bottom end of the first transparent shutter is in contact with the front left area of the top end of the base.

The utility model discloses a bridge construction is with crab-bolt tensile strength detection device that pulls out, the second shielding part includes backplate, right baffle and the transparent shutter of second, backplate and right baffle set up respectively on base top right back region and right half region, and backplate and right baffle top are connected with roof rear side and right side in the support respectively, the transparent shutter of second articulates on support front end right side, and roof front side contact in the transparent shutter top of second and the support, left side wall front end contact in the transparent shutter left end of second and the support, first transparent shutter bottom and the regional contact in the right side of base top.

The utility model discloses a bridge construction is with crab-bolt tensile strength detection device that pulls out still includes the baffle, the baffle sets up on left baffle right-hand member first region, and the baffle right-hand member is connected with support left end upside, and both sides are connected with preceding connecting plate and back connecting plate bottom left side respectively around the baffle top, baffle top middle part is provided with the intercommunication mouth, and connects the rope and pass the intercommunication mouth.

The utility model discloses a bridge construction is with crab-bolt tensile strength detection device that pulls out still includes two sets of preceding ball bearings and two sets of back ball bearing, two sets of preceding ball bearings set up respectively inside two sets of preceding slots, and two sets of preceding rotating shaft front ends insert respectively to inside two sets of preceding ball bearings, two sets of back ball bearings set up respectively inside two sets of back slots, and two sets of back rotating shaft rear ends insert respectively to inside two sets of back ball bearings.

The utility model discloses a bridge construction is with crab-bolt tensile strength detection device that pulls out, still including placing the box, place the box setting left side wall upside in the support, and place the box top and be provided with the standing groove.

The utility model discloses a bridge construction is with crab-bolt tensile strength detection device that pulls out still includes two sets of antiskid ribbed tile, two sets of antiskid ribbed tile set up respectively in two sets of bottom plate bottoms.

Compared with the prior art, the beneficial effects of the utility model are that: the device can be conveniently moved by arranging the roller, so that the physical strength during moving is saved, and the labor degree is reduced; meanwhile, the device component can be relatively shielded by the first shielding piece and the second shielding piece, so that the entering of dust is reduced, the cleaning times are reduced, and the usability is improved; and the friction between the connecting rope and the pulley in the moving process can be reduced through the rotation of the pulley, and the use reliability is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an external schematic view of FIG. 1;

FIG. 3 is a schematic view of the structure between the roller and the front and rear connection plates;

FIG. 4 is an enlarged partial view of portion A of FIG. 1;

in the drawings, the reference numbers: 1. a base; 2. a support; 3. a drive device; 4. a drive rod; 5. placing the plate; 6. connecting ropes; 7. a fixing buckle; 8. a front connecting plate; 9. a pulley; 10. a tension detector; 11. a roller; 12. a first shield; 13. a second shield; 14. a front rotary shaft; 15. a rear rotating shaft; 16. a threaded rod; 17. rotating the block; 18. a base plate; 19. a left baffle; 20. an upper baffle plate; 22. a first transparent shutter; 23. a front support plate; 24. a right support plate; 25. a right baffle; 26. a second transparent shutter; 27. a partition plate; 28. a rear ball bearing; 29. placing the box; 30. an antiskid plate.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in figures 1 to 4, the anchor bolt anti-pulling strength detection device for bridge construction of the utility model comprises a base 1, a support 2, a driving device 3, a driving rod 4, a placing plate 5, a connecting rope 6, a fixing buckle 7, a front connecting plate 8, a rear connecting plate and two groups of pulleys 9, wherein the driving device 3 and the support 2 are respectively arranged on the left region and the right region of the top end of the base 1, the driving device 3 is provided with a tension detector 10, the driving rod 4 is arranged on the top output end of the driving device 3, the placing plate 5 is arranged on the top end of the driving rod 4, the right half region of the top end of the base 1 is provided with an opening, the fixing buckle 7 is arranged between the support 2 and the opening, the front connecting plate 8 and the rear connecting plate are respectively arranged on the front side and the rear side of the top end of the support 2, the two groups of pulleys 9 are arranged on the inner sides of the, one end of the connecting rope 6 is connected with the top end of the placing plate 5, and the other end of the connecting rope 6 penetrates through the bracket 2 and is connected with the top end of the fixing buckle 7; the device also comprises four groups of rollers 11 and two groups of fixing pieces, wherein the four groups of rollers 11 are respectively arranged on the left front side, the left rear side, the right front side and the right rear side of the bottom end of the base 1, the two groups of fixing pieces are respectively arranged on the left end and the right end of the base 1, and the output ends of the two groups of fixing pieces are both positioned below the base 1; the device further comprises a first shielding piece 12 and a second shielding piece 13, wherein the first shielding piece 12 and the second shielding piece 13 are respectively arranged on the left area and the right area of the top end of the base 1, and the driving device 3 and the bracket 2 are respectively positioned on the inner sides of the first shielding piece 12 and the second shielding piece 13; the front connecting plate is characterized by further comprising two groups of front rotating shafts 14 and two groups of rear rotating shafts 15, front slots are formed in the left half area and the right half area of the rear end of the front connecting plate 8, the two groups of front rotating shafts 14 are arranged on the two groups of front slots respectively, the rear ends of the two groups of front rotating shafts 14 are connected with the front ends of the two groups of pulleys 9 respectively, rear slots are formed in the left half area and the right half area of the front end of the rear connecting plate, the two groups of rear rotating shafts 15 are arranged on the two groups of rear slots respectively, and the front ends of the two groups of rear rotating shafts 15 are connected; the device can be conveniently moved by arranging the roller, so that the physical strength during moving is saved, and the labor degree is reduced; meanwhile, the device component can be relatively shielded by the first shielding piece and the second shielding piece, so that the entering of dust is reduced, the cleaning times are reduced, and the usability is improved; and the friction between the connecting rope and the pulley in the moving process can be reduced through the rotation of the pulley, and the use reliability is improved.

The utility model discloses a bridge construction is with crab-bolt tensile strength detection device, mounting include threaded rod 16, turning block 17 and bottom plate 18, and the both sides are provided with the screw thread mouth on the top of base 1, and threaded rod 16 spiral shell dress is on the screw thread mouth, and turning block 17 and bottom plate 18 set up respectively on threaded rod 16 top and bottom; its accessible helicitic texture drives the bottom plate through rotatory threaded rod and removes to through making the bottom plate with place regional contact, thereby the steadiness when reinforcing device places.

The utility model relates to a tensile strength detection device of anchor bolt for bridge construction, a first shielding piece 12 comprises a left baffle plate 19, an upper baffle plate 20, a first transparent baffle door 22, a front support plate 23, a rear support plate and a right support plate 24, the left baffle plate 19 is arranged on the left half area of the top end of a base 1, the left baffle plate 19 is positioned on the left side of a driving device 3, the upper baffle plate 20 is arranged on the top end of the left baffle plate 19, the front support plate 23, the rear support plate and the right support plate 24 are respectively arranged on the front side, the rear side and the right side of the bottom end of the upper baffle plate 20, the bottom ends of the front support plate 23, the rear support plate and the right support plate 24 are respectively connected with the left front side of the top end of the support 2, the rear side of the top end of the base 1 and the middle part of the top end of the support 2, the left ends of the front support plate 23 and the rear support plate are respectively connected with the front side and the rear end of the upper end of, the top end of the first transparent shutter 22 is in contact with the left side of the bottom end of the front support plate 23, the right end of the first transparent shutter 22 is in contact with the front side of the left end of the support 2, and the bottom end of the first transparent shutter 22 is in contact with the front left area of the top end of the base 1; the cleaning device can relatively shield components such as driving equipment and the like, and reduces the entering of dust, thereby reducing the cleaning times and improving the usability.

The utility model discloses a bridge construction is with crab-bolt tensile strength detection device that pulls out, second shielding piece 13 includes backplate, right baffle 25 and second transparent shutter 26, backplate and right baffle 25 set up respectively on base 1 top right rear region and right half region, and backplate and right baffle 25 top are connected with roof rear side and right side in the support 2 respectively, second transparent shutter 26 articulates on support 2 front end right side, and second transparent shutter 26 top contacts with roof front side in the support 2, second transparent shutter 26 left end contacts with left side wall front end in the support 2, first transparent shutter 22 bottom contacts with base 1 top right front region; the cleaning device can relatively shield components such as a bracket and the like, and reduces the entering of dust, thereby reducing the cleaning times and improving the usability.

The utility model discloses a bridge construction is with crab-bolt tensile strength detection device that pulls out, still include baffle 27, baffle 27 sets up on the upper half area of the right-hand member of left baffle 19, and baffle 27 right-hand member is connected with support 2 left end upside, baffle 27 top front and back both sides respectively with preceding connecting plate 8 and back connecting plate bottom left side connection, baffle 27 top middle part is provided with the intercommunication mouth, and connect rope 6 and pass the intercommunication mouth; the pulley can be shielded, so that dust is prevented from entering the pulley, and the usability of the pulley is improved.

The utility model discloses a bridge construction is with crab-bolt tensile strength detection device that pulls out still includes two sets of preceding ball bearings and two sets of back ball bearing 28, and two sets of preceding ball bearings set up respectively inside two sets of front slots, and two sets of front rotating shaft 14 front ends insert respectively to two sets of preceding ball bearings inside, and two sets of back ball bearing 28 set up respectively inside two sets of back slots, and two sets of back rotating shaft 15 rear ends insert respectively to two sets of back ball bearing 28 insides; it can enhance the rotating effect and improve the usability.

The utility model discloses a bridge construction anchor bolt anti-drawing strength detection device, which also comprises a placing box 29, wherein the placing box 29 is arranged at the upper side of the left side wall in the bracket 2, and the top end of the placing box 29 is provided with a placing groove; the fixing buckle can be placed after being used, so that the device can shake back and forth when moving, and the usability is improved.

The utility model discloses a bridge construction is with crab-bolt tensile strength detection device that pulls out, still include two sets of antiskid ribbed tile 30, two sets of antiskid ribbed tile 30 set up in 18 bottoms of two sets of bottom plates respectively; it can increase friction force and improve the stability of the device after being placed.

The utility model discloses a bridge construction is with crab-bolt tensile strength detection device, it moves the device to the appointed area earlier when using, and make the prefab that awaits measuring be located the opening below, later rotatory two sets of rotating blocks drive the bottom plate on the threaded rod and move down, until make the antiskid ribbed tile and place the regional contact, the steadiness after reinforcing means is placed, later control drive arrangement drive connecting plate on the actuating lever upward movement, make the fastener move down until it contacts with the crab-bolt on the prefab, later connect fastener and crab-bolt, control drive arrangement drive connecting plate on the actuating lever downward movement after connecting, thus pull fastener upward movement, exert the pulling force to the crab-bolt on the prefab, until the crab-bolt comes out from the prefab, and detect the pulling force change and pull out the pulling force value on the tensile detector in the moment through the tensile detector, thereby obtaining the tensile strength of the anchor bolt; in the process, the device component can be relatively shielded by the first shielding piece and the second shielding piece, so that the entering of dust is reduced, the cleaning times are reduced, and the usability is improved; and the friction between the connecting rope and the pulley in the moving process can be reduced through the rotation of the pulley, and the use reliability is improved.

The utility model discloses a bridge construction is with crab-bolt tensile strength detection device that pulls out, unless clear and definite regulation and restriction in addition, the term "set up", "install", "link to each other", "connect" should be understood in a broad sense, for example, can be fixed connection, also can be detachable connection, or integrative connection, can be mechanical connection, also can be the electricity connection, can be direct connection, also can be through intermediate medium linking, can be the intercommunication in two components, to the ordinary skilled person in the art, can understand the specific meaning of above-mentioned term in this utility model according to specific situation; the types of the components are not limited, the components can be implemented as long as the beneficial effects of the components can be achieved, the driving device and the tension detector are designed and manufactured in the prior art, and the technical improvement of the driving device and the tension detector is not realized.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A device for detecting the tensile strength of an anchor bolt for bridge construction comprises a base (1), a bracket (2), a driving device (3), a driving rod (4), a placing plate (5), a connecting rope (6), a fixing buckle (7), a front connecting plate (8), a rear connecting plate and two groups of pulleys (9), wherein the driving device (3) and the bracket (2) are respectively arranged on the left area and the right area of the top end of the base (1), the driving device (3) is provided with a tension detector (10), the driving rod (4) is arranged on the top output end of the driving device (3), the placing plate (5) is arranged at the top end of the driving rod (4), the right area of the top end of the base (1) is provided with through holes, the fixing buckle (7) is positioned between the bracket (2) and the through holes, the front connecting plate (8) and the rear connecting plate are respectively arranged on the front side and the rear side, two groups of pulleys (9) are arranged on the inner sides of the front connecting plate (8) and the rear connecting plate, the connecting rope (6) is arranged at the top ends of the two groups of pulleys (9), one end of the connecting rope (6) is connected with the top end of the placing plate (5), and the other end of the connecting rope (6) penetrates through the support (2) and is connected with the top end of the fixing buckle (7); the method is characterized in that: the device is characterized by further comprising four groups of rollers (11) and two groups of fixing pieces, wherein the four groups of rollers (11) are respectively arranged on the left front side, the left rear side, the right front side and the right rear side of the bottom end of the base (1), the two groups of fixing pieces are respectively arranged on the left end and the right end of the base (1), and the output ends of the two groups of fixing pieces are both positioned below the base (1); the automatic cleaning device is characterized by further comprising a first shielding piece (12) and a second shielding piece (13), wherein the first shielding piece (12) and the second shielding piece (13) are respectively arranged on the left area and the right area of the top end of the base (1), and the driving device (3) and the support (2) are respectively located on the inner sides of the first shielding piece (12) and the second shielding piece (13); the front connecting plate is characterized by further comprising two groups of front rotating shafts (14) and two groups of rear rotating shafts (15), front slots are formed in the left half area and the right half area of the rear end of the front connecting plate (8), the two groups of front rotating shafts (14) are arranged on the two groups of front slots respectively, the rear ends of the two groups of front rotating shafts (14) are connected with the front ends of the two groups of pulleys (9) respectively, rear slots are formed in the left half area and the right half area of the front end of the rear connecting plate respectively, the two groups of rear rotating shafts (15) are arranged on the two groups of rear slots respectively, and the front ends of the two groups of rear rotating shafts (15) are connected with the rear ends.

2. The anchor bolt tensile strength detection device for bridge construction according to claim 1, wherein the fixing member includes a threaded rod (16), a rotating block (17) and a bottom plate (18), threaded openings are formed on both sides of the top end of the base (1), the threaded rod (16) is screwed on the threaded openings, and the rotating block (17) and the bottom plate (18) are respectively formed on the top end and the bottom end of the threaded rod (16).

3. The anchor bolt tensile strength detection device for bridge construction according to claim 2, wherein the first shielding member (12) comprises a left baffle plate (19), an upper baffle plate (20), a first transparent shutter (22), a front plate (23), a rear support plate and a right support plate (24), the left baffle plate (19) is disposed on the left half region of the top end of the base (1), the left baffle plate (19) is located on the left side of the driving apparatus (3), the upper baffle plate (20) is disposed on the top end of the left baffle plate (19), the front plate (23), the rear support plate and the right support plate (24) are respectively disposed on the front side, the rear side and the right side of the bottom end of the upper baffle plate (20), the bottom ends of the front plate (23), the rear support plate and the right support plate (24) are respectively connected with the front side of the top end of the bracket (2), the rear side of the top end of the base (1) and the middle portion of the top end of the bracket (2), the left end of the front plate (23) and the left end of the rear plate are respectively connected with the front, the front support plate (23) and the rear support plate are respectively connected with the front side and the rear side of the left end of the right support plate (24), the first transparent stop door (22) is hinged to the left baffle (19), the top end of the first transparent stop door (22) is in contact with the left side of the bottom end of the front support plate (23), the right end of the first transparent stop door (22) is in contact with the front side of the left end of the support (2), and the bottom end of the first transparent stop door (22) is in contact with the front left area of the top end of the base (1).

4. The anchor bolt tensile strength detection device for bridge construction according to claim 3, wherein the second shielding member (13) comprises a rear baffle, a right baffle (25) and a second transparent shutter (26), the rear baffle and the right baffle (25) are respectively disposed on the right rear region and the right half region of the top end of the base (1), the top ends of the rear baffle and the right baffle (25) are respectively connected with the rear side and the right side of the inner top wall of the bracket (2), the second transparent shutter (26) is hinged on the right side of the front end of the bracket (2), the top end of the second transparent shutter (26) is in contact with the front side of the inner top wall of the bracket (2), the left end of the second transparent shutter (26) is in contact with the front end of the inner left side wall of the bracket (2), and the bottom end of the first transparent shutter (22) is in contact with the right front region of the top end of the base (1).

5. The anchor bolt tensile strength detection device for bridge construction according to claim 4, further comprising a partition plate (27), wherein the partition plate (27) is arranged on the upper half area of the right end of the left baffle plate (19), the right end of the partition plate (27) is connected with the upper side of the left end of the bracket (2), the front side and the rear side of the top end of the partition plate (27) are respectively connected with the front connecting plate (8) and the left side of the bottom end of the rear connecting plate, a communication port is formed in the middle of the top end of the partition plate (27), and the connecting rope (6) passes through the communication port.

6. The apparatus for detecting tensile strength of an anchor bolt for bridge construction according to claim 5, further comprising two sets of front ball bearings and two sets of rear ball bearings (28), wherein said two sets of front ball bearings are respectively disposed inside said two sets of front slots, front ends of said two sets of front rotary shafts (14) are respectively inserted into said two sets of front ball bearings, said two sets of rear ball bearings (28) are respectively disposed inside said two sets of rear slots, and rear ends of said two sets of rear rotary shafts (15) are respectively inserted into said two sets of rear ball bearings (28).

7. The anchor bolt tensile strength detection device for bridge construction according to claim 6, further comprising a placement box (29), wherein the placement box (29) is arranged on the upper side of the inner left side wall of the bracket (2), and a placement groove is formed in the top end of the placement box (29).

8. The anchor bolt tensile strength detection device for bridge construction according to claim 7, further comprising two sets of anti-slip plates (30), wherein the two sets of anti-slip plates (30) are respectively disposed at the bottom ends of the two sets of bottom plates (18).