CN112548913A

CN112548913A - Self-tapping self-locking bolt

Info

Publication number: CN112548913A
Application number: CN202011456292.1A
Authority: CN
Inventors: 彭志远; 陈帅
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-11
Filing date: 2020-12-11
Publication date: 2021-03-26

Abstract

The invention relates to the field of fasteners, in particular to a self-tapping self-locking bolt which comprises a bearing chute frame, wherein an auxiliary tapping plate is connected in a sliding and clamping mode in the bearing chute frame, fixed scribers are symmetrically and fixedly welded on one side of the bearing chute frame, the bearing chute frame comprises an open groove, a plectrum, a chute plate, a first chute, a second chute and a third chute, the second chute is symmetrically arranged at the top end and the bottom end in the interior of the chute plate, the third chute is symmetrically arranged at the top end and the bottom end in the interior of the chute plate at equal intervals, the third chute is located at the rear end of the second chute, the first chute is symmetrically arranged at the top end and the bottom end in one side of the chute plate, and the plectrum is symmetrically connected in the first chute in a sliding and clamping mode. Through the cooperation use of fixed scriber and marking device, completion marking off work that can be quick, and allotment mutually between L type feather key, second spout and the third spout, realized when the wrong is twisted in different positions, prevent the self tapping screw skew.

Description

Self-tapping self-locking bolt

Technical Field

The invention relates to the field of fasteners, in particular to a self-tapping self-locking bolt.

Background

The self-tapping screw is used for nonmetal or softer metal, can realize fixation without drilling a bottom hole and tapping, and can tap, drill, extrude and press corresponding threads on a solidified material by means of the threads of the self-tapping screw, so that the fixed material and the solidified material are mutually and tightly matched.

However, there are still some problems in use and operation of the self-tapping screw, such as:

the self-tapping screw is usually manually or electrically driven to perform self-tapping inwards, and during the inwards screwing process, the drilling direction of the self-tapping screw may deviate during the inwards screwing process because the external force cannot be perpendicular inwards.

Before screwing, the self-tapping screw needs to be scribed and positioned on a plate by staff in advance, and then self-tapping work can be carried out according to a wire body, so that self-tapping and scribing need to be separately carried out independently, and therefore when a large amount of self-tapping screws need to be screwed, the working efficiency can be directly influenced.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a self-tapping self-locking bolt.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a self tapping self-locking bolt, is including bearing the spout frame, the inside sliding clamping that bears the spout frame has supplementary tapping board, the fixed welding of one side symmetry that bears the spout frame has fixed scriber, bear the spout frame including open groove, plectrum ware, chute board, first spout, second spout and third spout, the inside top and the bottom at the chute board are seted up to second spout symmetry, the inside top and the bottom at the chute board are seted up to third spout symmetry equidistance, just the third spout is located the rear end of second spout, the top and the bottom in chute board one side are seted up to first spout symmetry, just plectrum ware symmetry slip joint is in the inside of first spout, open groove symmetry is seted up and is deviated from one side top and the bottom of second spout at the chute board.

The fixed scriber comprises a bearing, a movable groove plate, a scribing device, a first clamping plate, a gasket, a limiting screw, a roller, a second clamping plate and a first spring, wherein the movable groove plate is fixedly welded at the top end of the first clamping plate, the scribing device is slidably clamped inside the movable groove plate, the first spring is symmetrically and fixedly welded inside the side end of the first clamping plate, the second clamping plate is symmetrically and fixedly welded at the end head of the first spring, the bearing is symmetrically and fixedly arranged on two sides of the inside of the first clamping plate and the inside of the second clamping plate, the roller is symmetrically and fixedly connected inside the bearing, the limiting screw is symmetrically and threadedly inserted into the side end of the first clamping plate and the side end head of the second clamping plate, and the gasket is symmetrically and rotatably connected at the end head of the limiting screw.

Specifically, the marking device comprises a first sliding key, a second spring, a movable clamping key, a fixed handle, a limiting screw ring, a connecting plate, a marking pen and a rotating wheel, wherein the fixed handle is fixedly welded at the center of one side of the movable clamping key, the second spring is fixedly connected inside the other side of the movable clamping key, the first sliding key is symmetrically and fixedly welded at one side of the connecting plate, the first sliding key is slidably clamped inside the movable clamping key, the rotating wheel is rotatably connected at the center of one side, which deviates from the first sliding key, of the connecting plate, the limiting screw ring is in threaded connection with one side of the top end of the connecting plate, and the marking pen is slidably connected with one end of the side face of the connecting plate.

Specifically, the plectrum ware includes fixed sleeve, spacing inserted bar, operating handle and third spring, the fixed welding of spacing inserted bar is in operating handle's bottom, operating handle and spacing inserted bar slip grafting are in fixed sleeve's inside, third spring fixed connection is at fixed sleeve's inside center.

Specifically, supplementary threading board includes reset spring, contact pad, buffer spring, first limiting plate, the smooth key of L type, second limiting plate, bolt and joint piece, buffer spring symmetry fixed connection is at the side of first limiting plate and second limiting plate, the one end department of buffer spring is fixed to the contact pad symmetry, reset spring symmetry fixed connection is in bottom and top one side of first limiting plate and second limiting plate, just the smooth key symmetry fixed connection of L type is on reset spring, the fixed welding of bolt symmetry is in one side that the second limiting plate deviates from buffer spring, the fixed welding of joint piece symmetry is in one side that first limiting plate deviates from buffer spring, just the bolt slides and pegs graft in the inside of joint piece.

Specifically, when the bolt moves to a limit distance, the first limiting plate is attached to the second limiting plate, semicircular grooves are formed in the side ends of the second limiting plate and the first limiting plate, the side ends of the semicircular grooves are arranged in an arc shape, when the L-shaped sliding key descends to the limit position, the L-shaped sliding key is flush with the top ends and the bottom ends of the first limiting plate and the second limiting plate, clamping grooves matched with the bolt are formed in the clamping blocks, accommodating grooves matched with the contact pads are formed in the side ends of the second limiting plate and the first limiting plate, circular holes matched with the limiting insertion rods are formed in the fixing sleeve, the moving distance of the limiting insertion rods does not exceed the length of the fixing sleeve, the diameter of the third spring is smaller than that of the top ends of the limiting insertion rods, and the thickness of the open groove is consistent with that of the first limiting plate and the second limiting plate, the limiting insertion rod is in contact with the L-shaped sliding key when moving downwards, a slot matched with the first sliding key is formed in the moving clamping key, the limiting screw ring is screwed downwards to a limit position, the marking pen is fastened with the connecting plate, the gasket and the contact gasket are made of plastic, and a moving groove matched with the moving clamping key is formed in the moving groove plate.

Specifically, the sliding groove plate is fixedly welded at the top of the side end of the first clamping plate, the movable clamping key is clamped inside the movable sliding groove plate in a sliding mode, the fixed sleeve is symmetrically clamped inside the first sliding groove in a sliding mode, and the L-shaped sliding key is symmetrically clamped inside the second sliding groove in a sliding mode.

The invention has the beneficial effects that:

the self-tapping self-locking bolt is inserted at the side ends of the limit screw and the second clamping plate through the symmetrical threads of the limit screw, the gasket is symmetrically and rotatably connected at one end of the limit screw, the limit screw can be respectively screwed inwards until the gasket is driven to be fastened with a workpiece, the gasket is made of plastic, the surface of the workpiece can be prevented from being damaged when the gasket is contacted with the workpiece, the self-tapping self-locking bolt is symmetrically and fixedly welded between the second clamping plate and the first clamping plate through the first spring, the first clamping plate and the second clamping plate can be pulled through the elasticity of the first spring, so that the self-tapping self-locking bolt can adapt to workpieces with different thicknesses, the self-tapping self-locking bolt is symmetrically and fixedly arranged at two inner sides of the first clamping plate and the second clamping plate through the bearings, the rollers are symmetrically and fixedly connected inside the bearings, when the first spring is retracted inwards, the rollers can be driven to be contacted with the surface of, the movable clamping key can be clamped in the movable groove in a sliding manner through the movable groove plate, the fixed handle is moved to drive the movable clamping key to move in the movable groove, the movable clamping key is fixedly welded on one side of the connecting plate through the first sliding key in a symmetrical manner, the movable clamping key is internally provided with a slot matched with the first sliding key, the first sliding key can be clamped in the slot in a sliding manner, so that the connecting plate can not deviate during moving, the connecting plate is fixedly connected in the movable clamping key through the second spring, the connecting plate is fixedly connected to one end of the second spring, when the connecting plate is contacted with a workpiece, the surface of the workpiece is uneven, so that the connecting plate can be inwards contracted through the elasticity of the second spring, the scribing work of different workpiece surfaces can be adapted, and the movable clamping key is connected to one side of the connecting plate through the rotation of the rotating wheel, the rotating wheel can be contacted with the workpiece at the first time, so that the smoothness of the connecting plate during movement can be improved.

The self-tapping self-locking bolt is characterized in that a round hole matched with the limiting inserted rod and the operating handle is formed in the fixing sleeve, the limiting inserted rod and the operating handle can be clamped in the fixing sleeve in a sliding mode, the operating handle can be extruded downwards until the operating handle is contacted with the L-shaped sliding key, the L-shaped sliding key can be driven to move downwards, subsequent sliding work is facilitated, the third spring is fixedly welded in the fixing sleeve, the diameter of the top end of the limiting inserted rod is larger than that of the third spring, therefore, after the limiting inserted rod is extruded downwards, the operating handle can be reset upwards through the elasticity of the third spring, the movable range of the limiting inserted rod and the operating handle does not exceed the length of the fixing sleeve, the limiting inserted rod and the operating handle can be prevented from popping upwards, when the limiting inserted rod is contacted with the L-shaped sliding key, the limiting inserted rod and the operating handle are symmetrically and fixedly welded at the bottom end of the L-shaped sliding key through the reset spring, the L-shaped sliding key can continuously move downwards, and the L-shaped sliding key is flush with the top end and the bottom end of the first limiting plate and the second limiting plate when moving downwards to the limit position, so that when the first limiting plate and the second limiting plate move inwards, the L-shaped sliding key can be driven to move to the inside of the third chute, the self-tapping screw can be ensured to keep straight inwards when being screwed, the L-shaped sliding key is symmetrically and fixedly welded at the side ends of the first limiting plate and the second limiting plate through the buffer spring, the contact gasket is symmetrically and fixedly connected at one end of the buffer spring, the self-tapping screw can be prevented from dropping downwards and rapidly, the side ends of the first limiting plate and the second limiting plate are provided with accommodating grooves matched with the contact gaskets, when the first limiting plate and the second limiting plate move inwards to the limit position, the contact gasket can be accommodated in the first limiting plate and the second limiting plate, and the self-tapping screw can be ensured to be screwed inwards, the thickness through the open groove is unanimous with first limiting plate and second limiting plate thickness, when first limiting plate and second limiting plate removed extreme position, can separate first limiting plate and second limiting plate to the self tapping screw that can be convenient for continues to twist extremely position.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of the main structure of the present invention;

FIG. 2 is a schematic view of a fixed scribe according to the present invention;

FIG. 3 is a schematic view of the scribing apparatus of the present invention;

FIG. 4 is a schematic view of the structure of the load-bearing runner frame of the present invention;

FIG. 5 is a schematic view of the structure of the pick of the present invention;

fig. 6 is a schematic structural view of the auxiliary tapping plate of the present invention.

In the figure: 1-fixed scriber, 2-bearing sliding groove frame, 3-auxiliary tapping plate, 11-bearing, 12-moving groove plate, 13-scribing device, 14-first clamping plate, 15-gasket, 16-limit screw, 17-roller, 18-second clamping plate, 19-first spring, 131-first sliding key, 132-second spring, 133-moving clamping key, 134-fixed handle, 135-limit screw ring, 136-connecting plate, 137-marker pen, 138-rotating wheel, 21-open groove, 22-plectrum, 23-sliding groove plate, 24-first sliding groove, 25-second sliding groove, 26-third sliding groove, 221-fixed sleeve, 222-limit inserted bar, 223-operating handle, 224-third spring, 31-a return spring, 32-a contact pad, 33-a buffer spring, 34-a first limit plate, 35-an L-shaped sliding key, 36-a second limit plate, 37-a bolt and 38-a clamping block.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-6, the self-tapping self-locking bolt of the invention comprises a bearing chute frame 2, an auxiliary tapping plate 3 is slidably clamped inside the bearing chute frame 2, a fixed scriber 1 is symmetrically and fixedly welded on one side of the bearing chute frame 2, the bearing chute frame 2 comprises an open groove 21, a plectrum 22, a chute plate 23, a first chute 24, a second chute 25 and a third chute 26, the second chute 25 is symmetrically arranged at the top end and the bottom end inside the chute plate 23, the third chute 26 is symmetrically arranged at the top end and the bottom end inside the chute plate 23 at equal intervals, and the third sliding groove 26 is located at the rear end of the second sliding groove 25, the first sliding groove 24 is symmetrically arranged at the top end and the bottom end of one side of the sliding groove plate 23, and the plectrum 22 is symmetrically clamped in the first sliding groove 24 in a sliding manner, and the open grooves 21 are symmetrically formed in the top end and the bottom end of one side of the sliding groove plate 23, which is far away from the second sliding groove 25.

Specifically, the fixed scriber 1 comprises a bearing 11, a movable groove plate 12, a scribing device 13, a first clamping plate 14, a gasket 15, a limit screw 16, rollers 17, a second clamping plate 18 and a first spring 19, wherein the movable groove plate 12 is fixedly welded at the top end of the first clamping plate 14, the scribing device 13 is slidably clamped inside the movable groove plate 12, the first spring 19 is symmetrically and fixedly welded inside the side end of the first clamping plate 14, the second clamping plate 18 is symmetrically and fixedly welded at the end head of one end of the first spring 19, the bearings 11 are symmetrically and fixedly arranged at two sides inside the first clamping plate 14 and the second clamping plate 18, the rollers 17 are symmetrically and fixedly connected inside the bearing 11, the limit screw 16 is symmetrically and threadedly inserted into the side ends of the first clamping plate 14 and the second clamping plate 18, the gasket 15 is symmetrically and rotatably connected at the end head of one end of the limit screw 16, and workpieces with different thicknesses can be clamped through the arrangement of the first spring 19, and the position of the first card 14 and the second card 18 can be fixed by the cooperation of the limit screw 16 and the gasket 15.

Specifically, the scribing device 13 includes a first sliding key 131, a second spring 132, a movable clamping key 133, a fixed handle 134, a limit screw ring 135, a connecting plate 136, a marker pen 137 and a rotating wheel 138, wherein the fixed handle 134 is fixedly welded at the center of one side of the movable clamping key 133, the second spring 132 is fixedly connected inside the other side of the movable clamping key 133, the first sliding key 131 is symmetrically and fixedly welded at one side of the connecting plate 136, the first sliding key 131 is slidably clamped inside the movable clamping key 133, the rotating wheel 138 is rotatably connected at the center of one side of the connecting plate 136 away from the first sliding key 131, the limit screw ring 135 is in threaded connection with one side of the top end of the connecting plate 136, the marker pen 137 is in sliding connection with one end of the side of the connecting plate 136, and the scribing work can be completed quickly by the cooperation of the second spring 132, the connecting plate 136 and the marker pen 137.

Specifically, plectrum 22 includes fixed sleeve 221, spacing inserted bar 222, operating handle 223 and third spring 224, and spacing inserted bar 222 is fixed to be welded in the bottom of operating handle 223, and operating handle 223 and spacing inserted bar 222 slide and peg graft in the inside of fixed sleeve 221, and third spring 224 fixed connection is in the inside center of fixed sleeve 221, uses through the cooperation of spacing inserted bar 222 with third spring 224, can be quick after the use reset.

Specifically, the auxiliary tapping plate 3 comprises a return spring 31, a contact pad 32, a buffer spring 33, a first limit plate 34, an L-shaped sliding key 35, a second limit plate 36, a bolt 37 and a clamping block 38, wherein the buffer spring 33 is symmetrically and fixedly connected to the side ends of the first limit plate 34 and the second limit plate 36, the contact pad 32 is symmetrically and fixedly connected to the end head of one end of the buffer spring 33, the return spring 31 is symmetrically and fixedly connected to the bottom end and the top end side of the first limit plate 34 and the second limit plate 36, the L-shaped sliding key 35 is symmetrically and fixedly connected to the return spring 31, the bolt 37 is symmetrically and fixedly welded to the side of the second limit plate 36 departing from the buffer spring 33, the clamping block 38 is symmetrically and fixedly welded to the side of the first limit plate 34 departing from the buffer spring 33, the bolt 37 is inserted into the clamping block 38 in a sliding manner, and the L-shaped sliding key 35 can be quickly inserted into the third chute 26 by matching, thereby facilitating subsequent operations.

Specifically, when the bolt 37 moves to the limit distance, the first limit plate 34 is attached to the second limit plate 36, the second limit plate 36 and the first limit plate 34 are both provided with a semicircular groove at the inner side, the side of the semicircular groove is arranged in an arc shape, when the L-shaped sliding key 35 descends to the limit position, the L-shaped sliding key is flush with the top end and the bottom end of the first limit plate 34 and the second limit plate 36, the clamping block 38 is provided with a clamping groove matched with the bolt 37 at the inner side, the second limit plate 36 and the first limit plate 34 are provided with a containing groove matched with the contact gasket 32 at the inner side, the fixed sleeve 221 is provided with a circular hole matched with the limit inserted bar 222 at the inner side, the moving distance of the limit inserted bar 222 does not exceed the self length of the fixed sleeve 221, the diameter of the third spring 224 is smaller than the diameter of the top end of the limit inserted bar 222, the thickness of the open groove 21 is consistent with the thicknesses, the limiting insertion rod 222 is contacted with the L-shaped sliding key 35 when moving downwards, a slot matched with the first sliding key 131 is formed in the movable clamping key 133, when the limiting screw ring 135 is screwed downwards to the limiting position, the marking pen 137 is fastened with the connecting plate 136, the gasket 15 and the contact gasket 32 are made of plastic, a movable groove matched with the movable clamping key 133 is formed in the movable groove plate 12, and all parts are connected with one another to facilitate subsequent work.

Specifically, the sliding groove plate 23 is fixedly welded on the top of the side end of the first clamping plate 14, the movable clamping key 133 is slidably clamped inside the movable groove plate 12, the fixing sleeve 221 is symmetrically slidably clamped inside the first sliding groove 24, and the L-shaped sliding key 35 is symmetrically slidably clamped inside the second sliding groove 25, so that the position relationship among parts is determined, and the work is facilitated.

The working principle is as follows: when the workpiece clamping device is used, the first clamping plate 14 and the second clamping plate 18 are symmetrically clamped on two sides of a workpiece, and are symmetrically and fixedly welded between the first clamping plate 14 and the second clamping plate 18 through the first spring 19, so that the workpiece clamping device can adapt to the fixing work of workpieces with different thicknesses, the bearing 11 is symmetrically and fixedly arranged on two sides of the inner parts of the first clamping plate 14 and the second clamping plate 18, the rollers 17 are symmetrically and fixedly connected in the bearing 11, when the first clamping plate 14 and the second clamping plate 18 contract inwards, the rollers 17 can be in surface contact with the workpiece, so that the smoothness of the first clamping plate 14 and the second clamping plate 18 during moving can be improved, when the workpiece clamping device moves to a specified position, the limiting screw rods 16 are inserted at the side ends of the first clamping plate 14 and the second clamping plate 18 through threads of the limiting screw rods 16, the limiting screw rods 16 can be respectively screwed inwards until the spacer 15 is driven to be in surface contact with the workpiece, therefore, the second clamping plate 18 and the first clamping plate 14 can be fastened with the surface of a workpiece, the first clamping plate 14 and the second clamping plate 18 are prevented from shaking in the subsequent work, when the positions are fixed, the movable groove matched with the movable clamping key 133 is formed in the movable groove plate 12, the movable clamping key 133 can be clamped in the movable groove in a sliding mode and is fixedly connected in the movable clamping key 133 through the second spring 132, the connecting plate 136 is fixedly connected at the other end of the second spring 132, the connecting plate 136 can be pressed to be in contact with the workpiece through the elasticity of the second spring 132, the rotating wheel 138 is rotatably connected to the back of the connecting plate 136, the rotating wheel 138 can roll on the surface of the workpiece, the smoothness of the connecting plate 136 in the moving process can be improved, the slot matched with the first sliding key 131 is formed in the movable clamping key 133, the first sliding key 131 can be clamped in the slot in a sliding mode, and the phenomenon that the connecting plate 136 deviates in the moving process can be avoided, the marking pen 137 is inserted into the connecting plate 136 in a sliding manner, and when the limiting screw ring 135 moves downwards to a limit position, the marking pen 137 is fastened with the connecting plate 136, so that when the connecting plate 136 moves, the marking pen 137 can be driven to complete marking on the surface of a workpiece, meanwhile, the L-shaped sliding key 35 is symmetrically clamped into the second chute 25 in a sliding manner, the return spring 31 is symmetrically and fixedly connected to the bottom end of the L-shaped sliding key 35, when the L-shaped sliding key 35 keeps a normal state, the L-shaped sliding key 35 is pressed against the top end of the second chute 25, so that the L-shaped sliding key 35 can be prevented from falling downwards from the inside of the second chute 25, a user can move the first limiting plate 34 and the second limiting plate 36 on the second chute 25 to a proper position until the first limiting plate is aligned with the third chute 26 according to own needs, and meanwhile, the first limiting plate 221 is clamped into the first chute 24 in a sliding manner, the limit inserting rod 222 and the operating handle 223 are slidably inserted into the fixing sleeve 221, the operating handle 223 can be pressed downward, so that the limit inserting rod 222 drives the L-shaped sliding key 35 to be pressed downward, the limit inserting rod 222 and the operating handle 223 can be reset through the elasticity of the third spring 224 after the operating handle 223 is pressed downward, and the moving range of the limit inserting rod 222 and the operating handle 223 does not exceed the self length of the fixing sleeve 221, so that the limit inserting rod 222 and the operating handle 223 can be prevented from being ejected from the inside of the fixing sleeve 221, and at the same time, the first limit plate 34 and the second limit plate 36 are moved inward, so that the L-shaped sliding key 35 can be moved from the inside of the second sliding groove 25 to the inside of the third sliding groove 26, the semicircular grooves are symmetrically formed at the inner side ends of the first limiting plate 34 and the second limiting plate 36, and the self-tapping screws can be inserted into the semicircular grooves, so that the self-tapping screws can drive the first limiting plate 34 and the second limiting plate 36 to move inwards, when the self-tapping screws move inwards, the self-tapping screws can be slidably clamped in the third sliding grooves 26 through the L-shaped sliding keys 35, the first limiting plate 34 and the second limiting plate 36 can be ensured to move inwards along a straight line, so that the self-tapping screws can be prevented from generating angular deviation during screwing, the self-tapping screws are symmetrically and fixedly connected at the side ends of the first limiting plate 34 and the second limiting plate 36 through the buffer springs 33, the contact gaskets 32 are fixedly connected at one end of the buffer springs 33, the first limiting plate 34 and the second limiting plate 36 can be prevented from rapidly moving downwards through the elasticity of the buffer springs 33, the accommodating grooves matched with the contact gaskets 32 are formed at the side ends of the first limiting plate 34, when the first limiting plate 34 and the second limiting plate 36 move to the limit positions, the contact pads 32 can be accommodated in the first limiting plate 34 and the second limiting plate 36, so that the self-tapping screws can continuously move inwards, meanwhile, the open groove 21 is formed in one side of the top end of the chute plate 23, the thickness of the open groove 21 is consistent with that of the first limiting plate 34 and the second limiting plate 36, when the first limiting plate 34 and the second limiting plate 36 move to the limit positions, the plug pin 37 can be drawn out from the inside of the clamping block 38, the first limiting plate 34 and the second limiting plate 36 are separated, so that the operator can continuously screw the self-tapping screws inwards to the limit positions, and the whole self-tapping screw screwing and fixing work is completed.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a self tapping self-locking bolt which characterized in that: including bearing the weight of the spout frame (2), the inside slip joint of bearing the weight of the spout frame (2) has supplementary tapping board (3), the fixed welding of one side symmetry of bearing the weight of the spout frame (2) has fixed scriber (1), bearing the weight of the spout frame (2) and including open groove (21), plectrum ware (22), chute board (23), first spout (24), second spout (25) and third spout (26), the inside top and the bottom in chute board (23) are seted up to second spout (25) symmetry, the inside top and the bottom in chute board (23) are seted up to third spout (26) symmetry equidistance, just third spout (26) are located the rear end of second spout (25), the top and the bottom in chute board (23) one side are seted up to first spout (24) symmetry, and plectrum ware (22) symmetry slip joint is in the inside of first spout (24), the open grooves (21) are symmetrically formed in the top end and the bottom end of one side, deviating from the second sliding groove (25), of the sliding groove plate (23).

2. A self-tapping and self-locking bolt according to claim 1, wherein: the fixed scriber (1) comprises a bearing (11), a movable groove plate (12), a scribing device (13), a first clamping plate (14), a gasket (15), a limiting screw (16), rollers (17), a second clamping plate (18) and a first spring (19), wherein the movable groove plate (12) is fixedly welded at the top end of the first clamping plate (14), the scribing device (13) is slidably clamped inside the movable groove plate (12), the first spring (19) is symmetrically and fixedly welded inside the side end of the first clamping plate (14), the second clamping plate (18) is symmetrically and fixedly welded at the end head of one end of the first spring (19), the bearing (11) is symmetrically and fixedly arranged at two sides of the inside of the first clamping plate (14) and the second clamping plate (18), the rollers (17) are symmetrically and fixedly connected inside the bearing (11), the limiting screw (16) is symmetrically and threadedly inserted at the side ends of the first clamping plate (14) and the second clamping plate (18), and the gasket (15) is symmetrically and rotatably connected to the end head of one end of the limit screw rod (16).

3. A self-tapping and self-locking bolt according to claim 2, wherein: the marking device (13) comprises a first sliding key (131), a second spring (132), a movable clamping key (133), a fixed handle (134), a limit screw ring (135), a connecting plate (136), a marking pen (137) and a rotating wheel (138), the fixed handle (134) is fixedly welded at the center of one side of the movable clamping key (133), the second spring (132) is fixedly connected with the inner part of the other side of the movable clamping key (133), the first sliding keys (131) are symmetrically and fixedly welded on one side of the connecting plate (136), the first sliding keys (131), the first sliding key (131) is clamped in the mobile card key (133) in a sliding way, the rotating wheel (138) is rotatably connected to the center of one side of the connecting plate (136) departing from the first sliding key (131), the limit screw ring (135) is inserted into one side of the top end of the connecting plate (136) in a threaded manner, the marking pen (137) is inserted at one end of the side surface of the connecting plate (136) in a sliding mode.

4. A self-tapping and self-locking bolt according to claim 3, wherein: the plectrum ware (22) includes fixed sleeve (221), spacing inserted bar (222), operating handle (223) and third spring (224), spacing inserted bar (222) fixed welding is in the bottom of operating handle (223), operating handle (223) and spacing inserted bar (222) slip grafting are in the inside of fixed sleeve (221), third spring (224) fixed connection is in the inside center of fixed sleeve (221).

5. A self-tapping and self-locking bolt according to claim 4, characterized in that: the auxiliary tapping plate (3) comprises a return spring (31), a contact gasket (32), a buffer spring (33), a first limiting plate (34), an L-shaped sliding key (35), a second limiting plate (36), a bolt (37) and a clamping block (38), wherein the buffer spring (33) is symmetrically and fixedly connected to the side ends of the first limiting plate (34) and the second limiting plate (36), the contact gasket (32) is symmetrically and fixedly connected to one end of the buffer spring (33), the return spring (31) is symmetrically and fixedly connected to the bottom ends and the top ends of the first limiting plate (34) and the second limiting plate (36), the L-shaped sliding key (35) is symmetrically and fixedly connected to the return spring (31), the bolt (37) is symmetrically and fixedly welded to one side of the second limiting plate (36) deviating from the buffer spring (33), the clamping block (38) is symmetrically and fixedly welded to one side of the first limiting plate (34) deviating from the buffer spring (33), and the bolt (37) is inserted in the clamping block (38) in a sliding manner.

6. A self-tapping and self-locking bolt according to claim 5, characterized in that: when the bolt (37) moves to a limit distance, the first limit plate (34) is attached to the second limit plate (36), semicircular grooves are formed in the side ends of the second limit plate (36) and the first limit plate (34), the side ends of the semicircular grooves are arranged in an arc shape, when the L-shaped sliding key (35) descends to the limit position, the L-shaped sliding key is flush with the top ends and the bottom ends of the first limit plate (34) and the second limit plate (36), a clamping groove matched with the bolt (37) is formed in the clamping block (38), a containing groove matched with the contact gasket (32) is formed in the side ends of the second limit plate (36) and the first limit plate (34), a round hole matched with the limit inserting rod (222) is formed in the fixing sleeve (221), and the moving distance of the limit inserting rod (222) is not more than the length of the fixing sleeve (221), the diameter of third spring (224) is less than the diameter on spacing inserted bar (222) top, the thickness of open groove (21) is unanimous with the thickness of first limiting plate (34) and second limiting plate (36), contact with L type feather key (35) when spacing inserted bar (222) move down, the slot with first feather key (131) looks adaptation is seted up to the inside of removing feather key (133), when spacing spiral shell screwing ring (135) twisted limit position downwards, marker pen (137) fasten with connecting plate (136) mutually, the material of gasket (15) and contact pad (32) is the plastic, the removal groove with removal feather key (133) looks adaptation is seted up to the inside of removing frid (12).

7. A self-tapping and self-locking bolt according to claim 5, characterized in that: the sliding groove plate (23) is fixedly welded at the top of the side end of the first clamping plate (14), the movable clamping key (133) is clamped inside the movable groove plate (12) in a sliding mode, the fixed sleeve (221) is symmetrically clamped inside the first sliding groove (24) in a sliding mode, and the L-shaped sliding key (35) is symmetrically clamped inside the second sliding groove (25) in a sliding mode.