CN221033527U - High tension anti-loosening expansion bolt - Google Patents

Abstract

The application discloses a high-tension anti-loosening expansion bolt, which relates to the technical field of expansion bolts and comprises an expansion pipe, wherein a driving piece is connected to the top end of the expansion pipe in a threaded manner, a moving piece is connected to one end of the driving piece in a rotating manner, the moving piece is slidably arranged in the expansion pipe, a plurality of fixing pieces are slidably connected to the expansion pipe, a plurality of elastic fixing plates are fixedly connected to one end of the expansion pipe, which is far away from the driving piece, a gasket is inserted into one end of the expansion pipe, a fixing nut is connected to the driving piece in a threaded manner, the moving piece is driven to move under the driving of the driving piece, so that the elastic fixing plates are unfolded, the inner wall of a wall hole is further fixed in a collision manner, meanwhile, the fixing piece can be driven to be extruded towards the inner wall of the wall hole when the moving piece moves, the fixing strength of the bolt is further improved, and the tension force of the bolt is improved, so that the bolt is more stable.

Description

High tension anti-loosening expansion bolt

Technical Field

The application relates to the technical field of expansion bolts, in particular to a high-tension anti-loosening expansion bolt.

Background

The expansion bolt is a common standard component, and is composed of a countersunk bolt, an expansion pipe, a flat washer, a spring pad and a hexagonal nut.

The prior China published patent grant bulletin number: the expansion bolt mentioned in CN101526099B is characterized in that a longitudinal screw hole is formed in the conical body, each expansion sheet is longitudinally provided with a thin end and a thick end, and the expansion sheets are connected by a connecting lath; when the expansion piece is used, the cone body is inserted into a space surrounded by the two expansion pieces, and the small end of the cone body points to the thick end of the expansion piece; the expansion sheet is provided with the elastic locating sleeve, so that the problem that the base rod of the expansion sheet cannot be detached when the expansion sheet needs to be detached after the expansion sheet is used is solved.

When the existing expansion bolt is used, the whole expansion bolt is embedded into a wall hole, an internal screw rod is rotated, then a component of an external expansion pipe is extruded, the expansion pipe structure of the expansion bolt is expanded, the expansion bolt is fixed in the wall hole, and then the external fixing part is connected in the next step, but in the use process of the bolt, the connected fixing part is inevitably collided by external force to vibrate, vibration force is transmitted into the bolt, the internal screw rod of the bolt is vibrated to rotate by sliding wires, the extrusion force of the screw rod to the expansion pipe component is reduced, the bolt is easy to loose, and the use of people is not facilitated.

Disclosure of utility model

The application aims at: in order to solve the problems that in the prior art, in the using process of a bolt, a connected fixing part is inevitably collided by external force to vibrate, vibration force is transmitted into the bolt and can cause a screw rod in the bolt to vibrate and slide wires to rotate, so that the extrusion force of the screw rod to an expansion pipe component is reduced, the bolt is easy to loosen, and the use of people is not facilitated, the application provides a high-tension anti-loosening expansion bolt.

The application adopts the following technical scheme for realizing the purposes:

The utility model provides a high tension locking expansion bolts, includes the expanded tube, the top threaded connection of expanded tube has the driving piece, the one end of driving piece rotates and is connected with the moving part, moving part slidable mounting is in the inside of expanded tube, sliding connection has a plurality of mounting on the expanded tube, the one end fixedly connected with a plurality of elastic fixation boards of driving piece are kept away from to the expanded tube, the gasket has been inserted to the one end of expanded tube, threaded connection has fixation nut on the driving piece, and one side of fixation nut is contradicted with the gasket, the one end fixedly connected with elasticity plug-in components of driving piece are kept away from to the expanded tube, and elasticity plug-in components are located the inboard of elastic fixation board, the one end of elasticity plug-in components corresponds with the one end of moving part, the inboard fixedly connected with a plurality of locating parts of expanded tube connects.

Through adopting above-mentioned technical scheme, under the drive of driving piece, drive the moving piece and remove for moving piece inner member drives the elastic fixation board, makes the elastic fixation board expand, and then contradicts fixedly to the wall hole inner wall, simultaneously, when moving the piece and remove, can drive the mounting, makes the mounting extrude towards the wall hole inner wall, and then improves the fixed strength of this bolt, improves the tight power that rises of bolt simultaneously, makes this bolt more firm.

Further, the driving piece comprises a threaded rod which is connected with one end of the expansion pipe in a threaded mode, one end of the threaded rod is fixedly connected with a screwing block, and one end, far away from the screwing block, of the threaded rod is connected with the moving piece in a rotating mode.

Through adopting above-mentioned technical scheme, through rotating the threaded rod, can make the threaded rod drive the moving part.

Further, the moving part comprises a sliding rod arranged in the expansion pipe, one end of the sliding rod is rotationally connected with the threaded rod, one end of the sliding rod, far away from the threaded rod, is fixedly connected with a conical driving block, a plurality of driving blocks are fixedly connected to the sliding rod, a guide plate is fixedly connected to the bottom end of the driving block, a plurality of sliding grooves are formed in the inner side of the expansion pipe, and the guide plate is slidably mounted in the sliding grooves.

Through adopting above-mentioned technical scheme, can drive mounting and elasticity fixed plate through drive piece and toper drive piece.

Further, offer a plurality of movable slots on the expanded pipe, the mounting includes the conflict board of slidable mounting at movable inslot portion, the equal fixedly connected with guide block in both sides of conflict board, the spacing piece of one end fixedly connected with of guide block, the guide slot has all been offered to the both sides of movable slot, the equal slidable mounting of guide block and spacing piece is inside the guide slot, one side fixedly connected with atress piece of conflict board.

Through adopting above-mentioned technical scheme, contradict the extrusion through conflict board and wall hole inner wall, and then strengthen the fixed strength of expand tube.

Further, an anti-slip layer is fixedly connected to the outer side of the abutting plate.

Through adopting above-mentioned technical scheme, can strengthen the frictional force between conflict board and the wall hole inner wall through the skid resistant course.

Further, the locating part includes fixed block of fixed connection in the expanded tube inboard, one side fixedly connected with of fixed block is symmetrical each other's elastic plate, the one end fixedly connected with dog that the fixed block was kept away from to the elastic plate, two the dog all is located between two drive blocks, and the dog is contradicted with the lateral wall slip of drive block.

Through adopting above-mentioned technical scheme, can carry out the joint through the dog with the drive piece to this is spacing to moving the piece.

Further, the elastic plug-in comprises a plug board fixedly connected to one end of the expansion pipe, and one end of the plug board is fixedly connected with an elastic baffle.

Through adopting above-mentioned technical scheme, in embedding the moving member through the elasticity separation blade, can carry out spacing fixed to the moving member.

Further, a clamping groove is formed in the conical driving block, a check ring is arranged at the notch of the clamping groove, and the clamping groove corresponds to the elastic baffle.

Through adopting above-mentioned technical scheme, through retaining ring and the mutual joint of elasticity separation blade, can carry out spacing fixed to the moving part.

In summary, the present application includes at least one of the following advantages;

1. According to the application, the moving part is driven to move by the driving part, so that the inner member of the moving part drives the elastic fixing plate, the elastic fixing plate is unfolded to further support and fix the inner wall of the wall hole, and meanwhile, when the moving part moves, the fixing part can be driven to extrude the fixing part towards the inner wall of the wall hole, thereby improving the fixing strength of the bolt, and improving the tensioning force of the bolt, so that the bolt is more stable.

2. According to the application, after the movable piece drives the elastic fixing plate and the fixing piece, the elastic plug-in can be embedded into one end of the movable piece to fix the movable piece, and the movable piece is clamped and limited through the internal structure of the limiting piece, so that the movable piece is prevented from being driven to move when the driving piece is subjected to external acting force, the interference and tensioning of the fixing piece and the elastic fixing plate are prevented, and the possibility of loosening when the bolt is used is reduced.

Drawings

FIG. 1 is a schematic perspective view of the present application;

FIG. 2 is a cross-sectional view of the present application;

FIG. 3 is a schematic view of the structure of an expanded pipe according to the present application;

FIG. 4 is a diagram showing the construction of the connection between the driving member and the moving member according to the present application;

FIG. 5 is a schematic view of the mounting structure of the resilient insert of the present application;

fig. 6 is a schematic structural view of a fixing member in the present application:

Fig. 7 is an enlarged view of fig. 2 in the present application.

Reference numerals illustrate:

1. Expanding the pipe; 2. a driving member; 3. a fixing member; 4. an elastic fixing plate; 5. an elastic insert; 6. a fixing nut; 7. a gasket; 8. a limiting piece; 9. a moving member; 11. a guide groove; 12. a sliding groove; 21. twisting blocks; 22. a threaded rod; 31. a contact plate; 32. a stress block; 33. a guide block; 34. a limiting piece; 35. an anti-slip layer; 51. inserting plate; 52. an elastic baffle; 81. a fixed block; 82. an elastic plate; 83. a stop block; 91. a slide bar; 92. a driving block; 93. a guide plate; 94. a tapered drive block; 95. a clamping groove; 96. and (5) a retainer ring.

Detailed Description

The application is described in further detail below with reference to fig. 1-7.

The embodiment of the application discloses a high-tension anti-loosening expansion bolt.

Referring to fig. 1, fig. 2 and fig. 3, a high tension locking expansion bolt comprises an expansion pipe 1, wherein a driving part 2 is connected to the top end of the expansion pipe 1 in a threaded manner, one end of the driving part 2 is rotationally connected with a moving part 9, the moving part 9 is slidably mounted in the expansion pipe 1, a plurality of fixing parts 3 are slidably connected onto the expansion pipe 1, one end of the expansion pipe 1, far away from the driving part 2, is fixedly connected with a plurality of elastic fixing plates 4, a gasket 7 is inserted into one end of the expansion pipe 1, a fixing nut 6 is connected to the driving part 2 in a threaded manner, one side of the fixing nut 6 is abutted against the gasket 7, one end of the expansion pipe 1, far away from the driving part 2, is fixedly connected with an elastic plug 5, the elastic plug 5 is located on the inner side of the elastic fixing plates 4, one end of the elastic plug 5 corresponds to one end of the moving part 9, and the inner side of the expansion pipe 1 is fixedly connected with a plurality of limiting parts 8.

When the expansion bolt is used, a wall hole can be formed on a wall, after the expansion bolt is drilled, the expansion pipe 1 is inserted into the wall hole, and the driving piece 2 is hammered through the outer hammer head, so that the expansion pipe 1 is forced into the wall hole, after the expansion pipe 1 is completely embedded into the wall hole, the driving piece 2 can be rotated, the driving piece 2 is pulled out from the expansion pipe 1, the moving piece 9 is driven to move, the moving piece 9 is enabled to move in the expansion pipe 1, when the moving piece 9 moves, the elastic fixing plates 4 can be acted, the elastic fixing plates 4 can be opened outwards, the elastic fixing plates 4 can be attached and extruded to the inner wall of the wall hole, the expansion pipe 1 is fixed, meanwhile, when the moving piece 9 moves, the fixing piece 3 can be driven, the fixing piece 3 moves towards the inner wall of the wall hole, and is attached and supported with the inner wall, so that the fixing strength of the bolt is improved, when the moving part 9 drives the fixing part 3 and the elastic fixing plate 4 to extend completely, at this time, the elastic plug-in 5 can be embedded into one end of the moving part 9, and then the moving part 9 is clamped and fixed, meanwhile, the limiting part 8 can form clamping connection with the internal components of the moving part 9, and can limit and fix the moving part 9, so that the moving part 9 is prevented from moving in the expansion pipe 1, and further, the fixing part 3 and the elastic fixing plate 4 are prevented from shrinking and rebounding due to external vibration force, so that the bolt is prevented from loosening during use, and the tightening force of the bolt is improved, after the expansion pipe 1 is fixed, an external mounting part can be placed at the end part of the expansion pipe 1, and the external mounting part is connected and fixed through the fixing nut 6 and the gasket 7, and here, after the fixing nut 6 is connected with the driving part 2 in a threaded manner, the driving part 2 can be fixed.

Referring to fig. 4 and 5, the driving member 2 includes threaded rod 22 of threaded connection in the one end of the expanded pipe 1, the one end fixedly connected with of threaded rod 22 twists piece 21, and the one end that the threaded rod 22 kept away from twists piece 21 rotates with moving member 9 to be connected, moving member 9 is including installing the slide bar 91 inside the expanded pipe 1, the one end and the threaded rod 22 rotation of slide bar 91 are connected, the one end fixedly connected with toper driving piece 94 that threaded rod 22 was kept away from to slide bar 91, fixedly connected with a plurality of driving pieces 92 on the slide bar 91, the bottom fixedly connected with baffle 93 of driving piece 92, a plurality of sliding tray 12 have been seted up to the inboard of expanded pipe 1, baffle 93 slidable mounting is inside sliding tray 12.

The screw rod 21 can be driven by an external wrench to drive the threaded rod 22 to rotate, when the threaded rod 22 rotates, the sliding rod 91 can be driven to move in the expansion pipe 1 and the driving block 92 and the conical driving block 94 are driven to move, when the conical driving block 94 moves, the elastic fixing plates 4 can be extruded to further enable the elastic fixing plates 4 to be outwards opened to attach and fix the inner wall of the wall hole, when the driving block 92 moves, the fixing piece 3 can be driven to further enable the fixing piece 3 to be outwards opened to move towards the inner wall of the wall hole, further, the moving piece 9 can drive the fixing piece 3 and the elastic fixing plates 4, the conical driving block 94 is conical, the abutting surface of the driving block 92 and the fixing piece 3 is an inclined surface, the driving block 92 and the conical driving block 94 can be uniformly opened to the fixing piece 3 and the elastic fixing plate 4 along with the movement of the sliding rod 91, and when the driving block 91 moves, the guide plate 93 can be driven to slide in the sliding groove 12 to limit the movement of the sliding rod 91, and the sliding rod 91 is prevented from rotating during the movement.

Referring to fig. 4 and 7, a plurality of movable grooves are formed in the expansion pipe 1, the fixing member 3 comprises a supporting plate 31 slidably mounted in the movable grooves, guide blocks 33 are fixedly connected to two sides of the supporting plate 31, a limiting plate 34 is fixedly connected to one end of each guide block 33, guide grooves 11 are formed in two sides of each movable groove, the guide blocks 33 and the limiting plates 34 are slidably mounted in the guide grooves 11, a stress block 32 is fixedly connected to one side of the supporting plate 31, and an anti-slip layer 35 is fixedly connected to the outer side of the supporting plate 31.

When the driving block 92 moves, the inclined surface of the driving block 92 can squeeze the force-bearing block 32, so that the force-bearing block 32 drives the abutting plate 31, the abutting plate 31 slides out from the movable groove, the abutting plate 31 moves towards the direction of the inner wall of the wall hole, the abutting plate 31 and the inner wall of the wall hole are further attached and squeezed, the expansion pipe 1 is supported in an auxiliary mode, the fixing strength of the bolt is improved, when the driving block 92 drives the abutting plate 31, the guide block 33 can slide in the guide groove 11, the movement of the abutting plate 31 is guided, the smoothness of the movement of the abutting plate 31 is improved, the limit piece 34 can prevent the guide block 33 from sliding out from the guide groove 11, the anti-slip layer 35 is a metal layer surface adopting frosting hand wheel rough treatment, the friction force between the abutting plate 31 and the inner wall hole can be enhanced, and the fixing strength of the bolt is further enhanced.

Referring to fig. 3, the limiting member 8 includes a fixing block 81 fixedly connected to the inner side of the expansion pipe 1, one side of the fixing block 81 is fixedly connected with an elastic plate 82 which is symmetrical to each other, one end of the elastic plate 82, which is far away from the fixing block 81, is fixedly connected with a stop block 83, two stop blocks 83 are located between two driving blocks 92, and the stop block 83 is in sliding contact with the side wall of the driving block 92.

When the slide bar 91 is moving, two dogs 83 can slide between two drive blocks 92, when the drive blocks 92 are fully expanding the fixing piece 3, the dogs 83 can slide across the drive blocks 92, so that the side wall of the drive blocks 92 is free from being in interference with the dogs 83, when the dogs 83 slide across the drive blocks 92, the dogs 83 can extend outwards under the elastic action of the elastic plate 82, and then form clamping connection with the bottom wall of the drive blocks 92, so that the moving piece 9 is limited, and the moving piece 9 is prevented from moving.

Referring to fig. 6, the elastic plug-in unit 5 includes a plug board 51 fixedly connected to one end of the expansion pipe 1, one end of the plug board 51 is fixedly connected with an elastic baffle 52, a tapered driving block 94 is provided with a clamping groove 95, a retainer ring 96 is disposed at a notch of the clamping groove 95, and the clamping groove 95 corresponds to the elastic baffle 52.

When the conical driving block 94 drives the elastic fixing plate 4, the inserting plate 51 and the elastic baffle plate 52 can move towards the clamping groove 95, and when the elastic fixing plate 4 is completely unfolded, the inserting plate 51 and the elastic baffle plate 52 are embedded into the clamping groove 95, so that the elastic baffle plate 52 and the check ring 96 form clamping connection, and therefore limiting and fixing are carried out on the moving piece 9, and the moving piece 9 is prevented from moving.

Working principle: when the expansion bolt is used, a wall hole can be formed on the wall, after the expansion bolt is drilled, the expansion pipe 1 is inserted into the wall hole, and the driving piece 2 is hammered through the outer hammer head, so that the expansion pipe 1 is forced into the wall hole, after the expansion pipe 1 is completely embedded into the wall hole, the sliding rod 91 can be driven to move in the expansion pipe 1, the driving block 92 and the conical driving block 94 are driven to move, when the conical driving block 94 moves, the elastic fixing plates 4 can be extruded, the elastic fixing plates 4 can be outwards expanded, the inner wall of the wall hole can be attached and fixed, the elastic fixing plates 4 can be attached and extruded to the inner wall of the wall hole, the expansion pipe 1 can be fixed, meanwhile, when the sliding rod 91 moves, the driving block 92 can be driven to move, the inclined surface of the driving block 92 can be extruded to the stress block 32, the stress block 32 can be driven to the abutting plate 31, the abutting plate 31 slides out of the movable groove, the abutting plate 31 moves towards the direction of the inner wall of the wall hole, the abutting plate 31 is attached to the inner wall of the wall hole and pressed, the expansion pipe 1 is supported in an auxiliary mode, the fixing strength of the bolt is improved, when the moving piece 9 drives the fixing piece 3 and the elastic fixing plate 4 to be fully extended, at the moment, the inserting plate 51 and the elastic baffle 52 are embedded into the clamping groove 95, the elastic baffle 52 and the check ring 96 form clamping connection, the moving piece 9 is limited and fixed, and therefore the moving piece 9 is prevented from moving, meanwhile, when the sliding rod 91 moves, the two baffle blocks 83 can slide between the two driving blocks 92, when the driving block 92 is fully unfolded by the fixing piece 3, the baffle blocks 83 can slide through the driving block 92, the side wall of the driving block 92 is released from abutting with the baffle blocks 83, when the baffle blocks 83 slide through the driving block 92, the baffle blocks 83 can be outwards extended under the elastic action of the elastic plate 82, and then form the joint with the diapire of driving piece 92, and then carry out spacing to moving piece 9 to prevent that moving piece 9 from taking place to remove, and then prevent mounting 3 and elastic fixation board 4 from receiving outside vibration force and leading to its shrink resilience, and then prevent that the bolt from taking place not hard up when using, improve the tight power that rises of this bolt simultaneously, after the expand tube 1 is fixed, can place the end at expand tube 1 with external mounting spare, and connect fixedly through fixation nut 6 and gasket 7 external mounting spare.

Claims (8)

1. The utility model provides a high tension locking expansion bolts, includes expander (1), its characterized in that: the novel expansion pipe is characterized in that a driving piece (2) is connected to the top end of the expansion pipe (1) in a threaded manner, a moving piece (9) is connected to one end of the driving piece (2) in a rotating manner, the moving piece (9) is slidably mounted inside the expansion pipe (1), a plurality of fixing pieces (3) are slidably connected to the expansion pipe (1), a plurality of elastic fixing plates (4) are fixedly connected to one end of the expansion pipe (1) away from the driving piece (2), a gasket (7) is inserted into one end of the expansion pipe (1), a fixing nut (6) is connected to the driving piece (2) in a threaded manner, one side of the fixing nut (6) is abutted to the gasket (7), one end of the expansion pipe (1) away from the driving piece (2) is fixedly connected with an elastic insert (5), the elastic insert (5) is located on the inner side of the elastic fixing plate (4), one end of the elastic insert (5) corresponds to one end of the moving piece (9), and a plurality of limiting pieces (8) are fixedly connected to the inner side of the expansion pipe (1).

2. The high tension check expansion bolt of claim 1, wherein: the driving piece (2) comprises a threaded rod (22) which is in threaded connection with one end of the expansion pipe (1), one end of the threaded rod (22) is fixedly connected with a screwing block (21), and one end of the threaded rod (22) far away from the screwing block (21) is in rotary connection with the moving piece (9).

3. The high tension check expansion bolt of claim 2, wherein: moving part (9) is including installing inside slide bar (91) at expand tube (1), the one end and the threaded rod (22) of slide bar (91) rotate to be connected, the one end fixedly connected with toper drive block (94) of threaded rod (22) are kept away from to slide bar (91), fixedly connected with a plurality of drive blocks (92) on slide bar (91), the bottom fixedly connected with baffle (93) of drive block (92), a plurality of sliding tray (12) have been seted up to the inboard of expand tube (1), baffle (93) slidable mounting is inside sliding tray (12).

4. The high tension check expansion bolt of claim 1, wherein: offer a plurality of movable slots on expand tube (1), mounting (3) are including slidable mounting at the inside conflict board (31) of movable slot, the equal fixedly connected with guide block (33) in both sides of conflict board (31), the one end fixedly connected with spacing piece (34) of guide block (33), guide slot (11) have all been seted up to the both sides of movable slot, guide block (33) and the equal slidable mounting of spacing piece (34) are inside guide slot (11), one side fixedly connected with atress piece (32) of conflict board (31).

5. The high tension check expansion bolt as claimed in claim 4, wherein: an anti-slip layer (35) is fixedly connected to the outer side of the abutting plate (31).

6. A high tension check expansion bolt as defined in claim 3, wherein: the limiting piece (8) comprises fixed blocks (81) fixedly connected to the inner side of the expansion pipe (1), one side of each fixed block (81) is fixedly connected with an elastic plate (82) which is symmetrical to each other, one end of each elastic plate (82) away from each fixed block (81) is fixedly connected with a stop block (83), two stop blocks (83) are located between two driving blocks (92), and the stop blocks (83) are in sliding contact with the side walls of the driving blocks (92).

7. A high tension check expansion bolt as defined in claim 3, wherein: the elastic plug-in unit (5) comprises a plug board (51) fixedly connected to one end of the expansion pipe (1), and one end of the plug board (51) is fixedly connected with an elastic blocking piece (52).

8. The high tension check expansion bolt as claimed in claim 7, wherein: the conical driving block (94) is provided with a clamping groove (95), a check ring (96) is arranged at the notch of the clamping groove (95), and the clamping groove (95) and the elastic baffle (52) correspond to each other.