CN219413172U

CN219413172U - Double-ended tooth self-tapping screw

Info

Publication number: CN219413172U
Application number: CN202320483344.7U
Authority: CN
Inventors: 柯万和
Original assignee: Zhejiang Yijie Te Fastener Manufacturing Co ltd
Current assignee: Zhejiang Yijie Te Fastener Manufacturing Co ltd
Priority date: 2023-03-14
Filing date: 2023-03-14
Publication date: 2023-07-25
Anticipated expiration: 2033-03-14

Abstract

The utility model relates to the technical field of screws and discloses a double-thread self-tapping screw which comprises a screw rod and a screw rod, wherein a connecting hole is formed in the top of the screw rod, regulating grooves are formed in two sides of an inner cavity of the connecting hole, a screw rod is rotatably connected between the upper side and the lower side of the inner cavity of one regulating groove in the two regulating grooves, and a worm wheel is fixedly connected to the outer side of the screw rod. According to the screw rod, the connecting hole, the adjusting groove, the screw rod, the worm wheel, the rotating shaft, the worm, the connecting groove, the driving disc, the adjusting rod, the adjusting block and the threaded hole are arranged, the worm is driven to rotate by screwing the driving disc, the worm is meshed with the worm wheel, the screw rod is driven to rotate, the adjusting rod slides in the adjusting groove through the adjusting block to guide movement, and the worm wheel and the worm are connected with each other to form a self-locking mechanism, so that the connecting length of the screw rod and the screw rod can be adjusted, the screw rod and the screw rod can be stably connected, and the firmness of screw installation is further improved.

Description

Double-ended tooth self-tapping screw

Technical Field

The utility model relates to the technical field of screws, in particular to a double-head tooth self-tapping screw.

Background

The double-ended self-tapping screw is a screw with threads at two ends, is usually used for installing equipment, accessories and the like, one end of the screw is screwed into a main body, the other end of the screw is fixed by installing a nut after the accessories are installed, and the screw is very convenient to replace by using the double-ended bolt because the number of times of dismounting the accessories is more than that of the main body.

The prior patent (publication number: CN 201921932951.7) discloses a double-thread self-tapping screw, which comprises a rod body, wherein bolt parts and screw parts are respectively arranged at two ends of the rod body, a sleeve is arranged on the surface of the rod body, a baffle plate, machine threads and wood threads are respectively arranged on the surface of the sleeve, the baffle plate is positioned between the machine threads and the wood threads, guide grooves are respectively arranged on the surfaces of the bolt parts and the screw parts, connecting feet which are in sliding connection with the guide grooves are arranged at the positions of the two ends of the sleeve corresponding to the guide grooves, and threads matched with the shapes of the bolt parts and the screw parts are respectively arranged on the surfaces of the two connecting feet.

In the process of implementing the present utility model, the inventor finds that at least the following problems in the prior art are not solved: the length of current bolt portion and screw portion regulation connection only through the elastic pad locking, and then cause the stability that bolt portion and screw portion are connected relatively poor, and then cause the screw installation insecure, consequently, we propose a double-end tooth self-tapping screw.

Disclosure of Invention

The utility model aims to provide a double-ended tooth self-tapping screw, which solves the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the double-head tooth self-tapping screw comprises a screw rod and a screw rod, wherein a connecting hole is formed in the top of the screw rod, adjusting grooves are formed in two sides of an inner cavity of the connecting hole, a screw rod is rotatably connected between the upper side and the lower side of the inner cavity of one of the two adjusting grooves, a worm wheel is fixedly connected to the outer side of the screw rod, a rotating shaft is rotatably connected between the two sides of the inner cavity of the adjusting groove, a worm is fixedly connected to the outer side of the rotating shaft, and a connecting groove is formed in one end of the outer side of the screw rod; one end fixedly connected with of bolt pole is adjusted the pole, both sides of adjusting the pole all weld the regulating block, two in the regulating block one of them the screw hole has been seted up on the regulating block.

As an alternative scheme of the technical scheme, a sliding rod is rotatably connected between the upper side and the lower side of an inner cavity of the adjusting groove, and a limiting hole is formed in the other adjusting block.

As an alternative of the technical scheme of the application, the rotating shaft rotates to penetrate through the screw rod to be placed in the connecting groove, and the driving disc is fixedly connected to the rotating shaft in the connecting groove.

As an alternative scheme of this application technical scheme, cross notch has been seted up to the outside one end of driving disk, hexagonal notch has been seted up at the middle part of cross notch, the degree of depth of cross notch and hexagonal notch is 1 centimetre.

As an alternative of the technical scheme of the application, a sealing plug is inserted into the connecting groove, the size of the sealing plug is matched with the size of the connecting groove, and the sealing plug has elasticity.

As an alternative of the technical scheme of the application, a finger hole is formed in one end of the outer side of the sealing plug, the depth of the finger hole is 4 cm, and the diameter of the finger hole is 3 cm.

Compared with the prior art, the beneficial effects of the technical scheme are as follows:

1. this application technical scheme is through screw pole, the bolt pole, the connecting hole, the spread groove, the lead screw, the worm wheel, the pivot, the worm, the spread groove, the driving disk, adjust pole, setting of regulating block and screw hole, rotate through twisting the drive disk area worm, because worm and worm wheel meshing, and then drive the lead screw rotates, because adjust the pole and pass through regulating block in the spread groove sliding guide removal, because worm wheel and worm connection have self-locking mechanism, and then can adjust the length that screw pole and bolt pole are connected, and then carry out stable connection with screw pole and bolt pole, further improvement screw installation's fastness.

2. This application technical scheme is through setting up of adjustment tank, slide bar, regulating block and spacing hole, establishes the outside at the slide bar with the regulating block slip cap through spacing hole, simultaneously the regulating block sliding connection in the adjustment tank, and then leads the reciprocates to the regulating rod, further improvement bolt rod and screw rod pass through the stability of adjusting the pole connection.

Drawings

Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:

FIG. 1 is a front view of a double-ended tooth self-tapping screw according to the present utility model;

FIG. 2 is a top view of a screw shank of a double-ended tooth self-tapping screw according to the present utility model;

FIG. 3 is a top view showing the connection between the bolt shank of the double-ended self-tapping screw and the adjusting block;

FIG. 4 is an enlarged view of the portion A of a double-ended self-tapping screw according to the present utility model;

fig. 5 is a front view of a driving plate of a double-ended self-tapping screw according to the present utility model.

In the figure: 1. a screw rod; 101. a connection hole; 102. an adjustment tank; 103. a connecting groove; 2. a bolt rod; 201. an adjusting rod; 3. a slide bar; 4. a screw rod; 401. a worm wheel; 5. a worm; 501. a rotating shaft; 6. an adjusting block; 601. a limiting hole; 602. a threaded hole; 7. a sealing plug; 701. finger holes; 8. a drive plate; 801. a cross-shaped notch; 802. hexagonal notch.

Detailed Description

Referring to fig. 1-5, the present utility model provides a technical solution: the double-head tooth self-tapping screw comprises a screw rod 1 and a screw rod 2, wherein a connecting hole 101 is formed in the top of the screw rod 1, adjusting grooves 102 are formed in two sides of an inner cavity of the connecting hole 101, a screw rod 4 is rotatably connected between the upper side and the lower side of the inner cavity of one of the two adjusting grooves 102, a worm wheel 401 is fixedly connected to the outer side of the screw rod 4, a rotating shaft 501 is rotatably connected between the two sides of the inner cavity of the adjusting groove 102, a worm 5 is fixedly connected to the outer side of the rotating shaft 501, the worm 5 is meshed with the worm wheel 401, a connecting groove 103 is formed in one end of the outer side of the screw rod 1, the rotating shaft 501 rotatably penetrates through the screw rod 1 and is arranged in the connecting groove 103, and a driving disc 8 is fixedly connected to the rotating shaft 501 in the connecting groove 103; one end fixedly connected with regulation pole 201 of bolt pole 2, the both sides of regulation pole 201 all weld regulating block 6, have offered screw hole 602 on one of them regulating block 6 in two regulating blocks 6, and two regulating blocks 6 sliding connection respectively are in adjusting tank 102, and regulating block 6 passes through screw hole 602 spiral cover and establishes in the outside of lead screw 4.

In this kind of technical scheme, through screw pole 1, bolt pole 2, connecting hole 101, adjustment tank 102, lead screw 4, worm wheel 401, pivot 501, worm 5, connecting groove 103, driving disk 8, adjust pole 201, regulating block 6 and screw hole 602's setting, drive disk 8 takes worm 5 to rotate through twisting, because worm 5 and worm wheel 401 meshing, and then drive lead screw 4 rotates, because adjust pole 201 through regulating block 6 in adjusting tank 102 sliding guide removal, because worm wheel 401 and worm 5 connect have self-locking mechanism, and then can adjust the length that screw pole 2 and bolt pole 1 are connected, and then carry out stable connection with screw pole 2 and bolt pole 1, further improvement screw installation's fastness.

In some technical schemes, a sliding rod 3 is rotatably connected between the upper side and the lower side of the inner cavity of the other adjusting groove 102 in the two adjusting grooves 102, a limiting hole 601 is formed in the other adjusting block 6 in the two adjusting blocks 6, and the adjusting blocks 6 are slidably sleeved on the outer side of the sliding rod 3 through the limiting hole 601.

In this kind of technical scheme, through the setting of adjustment tank 102, slide bar 3, regulating block 6 and spacing hole 601, establish regulating block 6 slip cap in the outside of slide bar 3 through spacing hole 601, simultaneously regulating block 6 sliding connection in adjustment tank 102, and then carry out the guide and reciprocate to adjusting lever 201, further improvement bolt rod 2 and screw rod 1 pass through the stability of adjusting lever 201 connection.

In some technical schemes, a cross-shaped notch 801 is formed in one end of the outer side of the driving disc 8, a hexagonal notch 802 is formed in the middle of the cross-shaped notch 801, and the depths of the cross-shaped notch 801 and the hexagonal notch 802 are 1 cm.

In this kind of technical scheme, through the setting of cross notch 801 and hexagon notch 802, and then the spanner instrument of being convenient for difference is pegged graft on driving disk 8, and then the length of the rotatory adjusting screw of driving disk 8 is driven to multiple instrument of being convenient for.

In some technical solutions, the sealing plug 7 is inserted into the connecting slot 103, the size of the sealing plug 7 is matched with the size of the connecting slot 103, and the sealing plug 7 has elasticity.

In this kind of technical scheme, through the setting of sealing plug 7, and then the cooperation has elastic sealing plug 7 can be stable insert in the spread groove 103, and then can protect driving disk 8, further extension driving disk 8's life.

In some technical solutions, a finger hole 701 is formed in one end of the outer side of the sealing plug 7, the depth of the finger hole 701 is 4 cm, and the diameter of the finger hole 701 is 3 cm.

In this technical solution, the finger hole 701 is provided, so that the finger of the operator can be inserted conveniently, and the sealing plug 7 can be detached conveniently.

When the screw rod is used, firstly, the spanner is inserted into the cross-shaped notch 801 and the hexagonal notch 802, then the driving disc 8 is screwed by the spanner to rotate with the worm 5, and the worm 5 is meshed with the worm wheel 401 to drive the screw rod 4 to rotate, and the adjusting rod 201 slides in the adjusting groove 102 to guide and move through the adjusting block 6, so that the length of the connection between the screw rod 1 and the screw rod 2 can be adjusted, the screw rod 2 and the screw rod 1 can be stably connected, the firmness of screw installation is further improved, the adjusting block 6 is sleeved on the outer side of the sliding rod 3 in a sliding mode through the limiting hole 601, meanwhile, the adjusting block 6 slides in the adjusting groove 102 to be connected, the adjusting rod 201 is guided to move up and down, and the stability of the connection between the screw rod 2 and the screw rod 1 through the adjusting rod 201 is further improved.

Claims

1. The utility model provides a double-end tooth self-tapping screw, includes screw pole (1) and bolt pole (2), its characterized in that: the screw rod is characterized in that a connecting hole (101) is formed in the top of the screw rod (1), regulating grooves (102) are formed in two sides of an inner cavity of the connecting hole (101), a screw rod (4) is rotatably connected between the upper side and the lower side of the inner cavity of one regulating groove (102) in the two regulating grooves (102), a worm wheel (401) is fixedly connected to the outer side of the screw rod (4), a rotating shaft (501) is rotatably connected between the two sides of the inner cavity of the regulating groove (102), a worm (5) is fixedly connected to the outer side of the rotating shaft (501), and a connecting groove (103) is formed in one end of the outer side of the screw rod (1);

one end fixedly connected with of bolt pole (2) is adjusted pole (201), both sides of adjusting pole (201) have all welded regulating block (6), two in regulating block (6) screw hole (602) have been seted up on regulating block (6).

2. The double-ended self-tapping screw as in claim 1, wherein: a sliding rod (3) is rotatably connected between the upper side and the lower side of the inner cavity of the other adjusting groove (102) in the two adjusting grooves (102), and a limiting hole (601) is formed in the other adjusting block (6) in the two adjusting blocks (6).

3. The double-ended self-tapping screw as in claim 1, wherein: the rotating shaft (501) rotates to penetrate through the screw rod (1) and is arranged in the connecting groove (103), and the driving disc (8) is fixedly connected to the rotating shaft (501) in the connecting groove (103).

4. A double-ended self-tapping screw as claimed in claim 3, wherein: the driving disc is characterized in that a cross-shaped notch (801) is formed in one end of the outer side of the driving disc (8), a hexagonal notch (802) is formed in the middle of the cross-shaped notch (801), and the depths of the cross-shaped notch (801) and the hexagonal notch (802) are 1 cm.

5. The double-ended self-tapping screw as in claim 1, wherein: a sealing plug (7) is inserted in the connecting groove (103), the size of the sealing plug (7) is matched with the size of the connecting groove (103), and the sealing plug (7) has elasticity.

6. The double-ended self-tapping screw as in claim 5, wherein: finger holes (701) are formed in one end of the outer side of the sealing plug (7), the depth of each finger hole (701) is 4 cm, and the diameter of each finger hole (701) is 3 cm.