CN218718069U - Full-thread screw with root eliminating structure - Google Patents

Abstract

The utility model discloses a full-thread screw with root structure disappears, including first lead screw and second lead screw, the bottom of first lead screw is provided with the second lead screw, the inside of first lead screw bottom is provided with first mounting groove, the inside of first lead screw and second lead screw bottom is provided with the second mounting groove, the top fixedly connected with screw head of first lead screw. This full-thread screw with root structure disappears is through being provided with parts such as screwdriver head, twist soon first screw pole twist with the work piece twist to install when fixed, the screwdriver can insert to close into the preformed groove, at this moment, utilize reset spring's elasticity, the fixed block can carry out the pressfitting to the screwdriver, reset spring is at flexible in-process, the movable sleeve can be in the outside activity of dead lever, thereby it is more stable to make to be connected between screwdriver and the screwdriver head, be difficult for droing when the installation, it is stable inadequately when twisting between screwdriver and the screwdriver head to have solved, the problem that easily takes place to drop.

Description

Full-thread screw with root eliminating structure

Technical Field

The utility model relates to a screw technical field specifically is a full thread screw with root structure disappears.

Background

The full-thread screw is a tool for fastening machine parts of a device, is mostly made of steel and the like, and is an indispensable industrial necessity in daily life.

According to application number CN201921721514.0, a full-thread screw is disclosed, including spiral shell head and full-thread double-screw bolt, the spiral shell head is kept away from double-screw bolt one end has seted up the horizontal groove, the horizontal groove with the lateral wall intercommunication of spiral shell head.

According to the scheme, the double-screw bolt can be screwed out by transversely inserting the double-screw bolt into the transverse groove by using a tool, so that disassembly is realized, in the actual use process, when the screwdriver and the screw head are screwed, the reserved groove is shallow, and an auxiliary fixing structure is not arranged, so that the screwdriver is not stable enough and is easy to fall off when the screwdriver drives the screw head to screw, and the full-screw with the root eliminating structure is troublesome in use and time-consuming, so that the full-screw with the root eliminating structure is required to be improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a full thread screw with root structure disappears to propose among the above-mentioned background art and twist when revolving between screwdriver and the screw head stable, take place the problem that drops inadequately easily.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a full-thread screw with root structure disappears, includes first lead screw and second lead screw, the bottom of first lead screw is provided with the second lead screw, the inside of first lead screw bottom is provided with first mounting groove, the inside of first lead screw and second lead screw bottom is provided with the second mounting groove, the top fixedly connected with screw head of first lead screw, the inside on screw head top is provided with the reservation groove, the inside one end fixed mounting of reservation groove has reset spring, reset spring's inside is provided with the dead lever, the movable sleeve has been cup jointed to the outside of dead lever, the one end fixedly connected with fixed block of movable sleeve.

Preferably, one end of the fixing rod is fixedly connected with one end inside the preformed groove, and the preformed groove is in a cross shape.

Preferably, the top fixedly connected with mount pad of second lead screw, the outside of mount pad is provided with the external screw thread, the inside of first mounting groove and second mounting groove is provided with the internal thread, the second lead screw passes through between mount pad and the first mounting groove and can dismantle.

Preferably, the rubber sleeve is sleeved outside the screw head, the screw head and the rubber sleeve are identical in shape, and the screw head is in a conical shape.

Preferably, four groups of return springs are arranged, and the return springs are distributed in the reserved groove at equal intervals.

Preferably, the movable sleeve is sleeved outside the fixed rod and can move.

Compared with the prior art, the beneficial effects of the utility model are that: the full-thread screw with the root eliminating structure not only realizes that the screw driver and the screw head are not easy to fall off during screwing, is more stable, realizes that the screw rod is convenient to be properly increased or reduced according to the required installation length, but also realizes the protection of the surface of a workpiece during installation between the screw head and the workpiece;

(1) By arranging the screw head, the reserved groove, the reset spring, the fixed rod, the movable sleeve and the fixed block, the movable sleeve is sleeved outside the fixed rod, the reset springs are arranged in the reserved groove at equal intervals, when the first screw rod is screwed and fixed with a workpiece, the screwdriver can be inserted into the reserved groove, at the moment, the fixed block can press the screwdriver by utilizing the elasticity of the reset spring, and the movable sleeve can move outside the fixed rod in the telescopic process of the reset spring, so that the screwdriver and the screw head are more stably connected and are not easy to fall off during installation;

(2) By arranging the first mounting groove, the mounting seat, the second lead screw and the second mounting groove, because the outer part of the mounting seat is provided with the external thread and the inner part of the second mounting groove is provided with the internal thread, if the length of the first lead screw during the connection with the workpiece is not enough, the mounting seat at the top end of the second lead screw can be conveniently screwed into the first mounting groove for fixing, so that the proper increase or decrease can be conveniently carried out according to the required length so as to adapt to the length of the workpiece during the mounting;

(3) The rubber sleeve and the screw head are arranged, the screw head is conical, the effect of eliminating roots is achieved during installation, the rubber sleeve is matched with the screw head in shape and can be sleeved outside the screw head, when the first screw rod is screwed to the bottom of the assembling groove in the workpiece, the rubber sleeve can be attached to the surface of the workpiece, scratches caused by over-tight screwing of the bottom of the screw head and the surface of the workpiece are avoided, and the protective performance is achieved;

drawings

Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

fig. 2 is a schematic side view of the connection between the striker plate and the first fixing seat of the present invention;

FIG. 3 is a schematic side view of the connection of the guiding material and the material receiving box of the present invention;

fig. 4 is a schematic view of the structure of the guide block and the guide groove of the present invention.

In the figure: 1. a first lead screw; 2. a first mounting groove; 3. a mounting seat; 4. a second lead screw; 5. a second mounting groove; 6. a rubber sleeve; 7. a screw head; 8. reserving a groove; 9. a return spring; 10. fixing the rod; 11. a movable sleeve; 12. and (5) fixing blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Example 1: referring to fig. 1-4, a full-thread screw with a root-eliminating structure includes a first screw rod 1 and a second screw rod 4, the bottom end of the first screw rod 1 is provided with the second screw rod 4, the inside of the bottom end of the first screw rod 1 is provided with a first mounting groove 2, the inside of the bottom ends of the first screw rod 1 and the second screw rod 4 is provided with a second mounting groove 5, the top end of the first screw rod 1 is fixedly connected with a screw head 7, the inside of the top end of the screw head 7 is provided with a reserved groove 8, one end inside the reserved groove 8 is fixedly provided with a return spring 9, the inside of the return spring 9 is provided with a fixed rod 10, the outside of the fixed rod 10 is sleeved with a movable sleeve 11, and one end of the movable sleeve 11 is fixedly connected with a fixed block 12;

one end of the fixed rod 10 is fixedly connected with one end inside the reserved groove 8, and the reserved groove 8 is in a cross shape;

the movable sleeve 11 is sleeved outside the fixed rod 10 and can move;

specifically, as shown in fig. 1 and 2, when the first lead screw 1 is screwed and fixed with a workpiece, the screwdriver may be inserted into the preformed groove 8, at this time, the fixed block 12 may press the screwdriver by using the elasticity of the return spring 9, and the movable sleeve 11 may move outside the fixed rod 10 during the expansion and contraction process of the return spring 9, so that the connection between the screwdriver and the lead screw 7 is more stable, and the screwdriver is not easy to fall off during installation.

Example 2: the top end of the second lead screw 4 is fixedly connected with an installation seat 3, external threads are arranged outside the installation seat 3, internal threads are arranged inside the first installation groove 2 and the second installation groove 5, and the second lead screw 4 is detachable from the first installation groove 2 through the installation seat 3;

specifically, as shown in fig. 1 and 4, if the length of the first lead screw 1 is insufficient when being connected to the workpiece, the mounting seat 3 at the top end of the second lead screw 4 can be conveniently screwed into the first mounting groove 2 for fixing, so that the length can be conveniently increased or decreased according to the required length to adapt to the length of the workpiece when being mounted.

Example 3: the rubber sleeve 6 is sleeved outside the screw head 7, the screw head 7 and the rubber sleeve 6 are the same in shape, and the screw head 7 is conical;

specifically, as shown in fig. 1 and 3, the screw head 7 is in a conical shape, so that the screw head has a root eliminating effect during installation, and since the rubber sleeve 6 is matched with and adapted to the screw head 7 in shape, the rubber sleeve 6 can be sleeved outside the screw head 7, and when the first lead screw 1 is screwed to the bottom of the assembly groove in the workpiece, the rubber sleeve 6 can be attached to the surface of the workpiece, so that the surface of the workpiece is protected to a certain extent.

The working principle is as follows: the utility model discloses when using, at first, length when being connected between first lead screw 1 and the work piece is not enough, can be convenient for twist into first mounting groove 2 with the mount pad 3 on second lead screw 4 top soon and fix, thereby can be convenient for carry out appropriate increase or reduction according to required length, length when adapting to the work piece installation, afterwards, twist first lead screw 1 soon, when twisting the installation solid with the work piece, the screwdriver can insert and close into preformed groove 8, at this moment, utilize reset spring 9's elasticity, fixed block 12 can carry out the pressfitting to the screw sword, reset spring 9 is at flexible in-process, movable sleeve 11 can be at dead lever 10 outside activity, thereby it is more stable to make to be connected between screwdriver and screw head 7, be difficult for droing, and finally, utilize screw head 7 to be the relation of toper form, the effect of eliminating the root has when the installation, because rubber sleeve 6 is identical with screw head 7's shape, adapt to, can cup joint its rubber sleeve 6 in the outside of screw head 7 when the installation, when the assembly portion in first lead screw 1 to the work piece, rubber sleeve 6 can laminate rather than the surface, the protection tank of its surface has certain soon.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. The utility model provides a full thread screw with eliminate root structure, includes first lead screw (1) and second lead screw (4), its characterized in that: the bottom of first lead screw (1) is provided with second lead screw (4), the inside of first lead screw (1) bottom is provided with first mounting groove (2), the inside of first lead screw (1) and second lead screw (4) bottom is provided with second mounting groove (5), the top fixedly connected with screw head (7) of first lead screw (1), the inside on screw head (7) top is provided with preformed groove (8), the inside one end fixed mounting in preformed groove (8) has reset spring (9), the inside of reset spring (9) is provided with dead lever (10), movable sleeve (11) has been cup jointed to the outside of dead lever (10), the one end fixedly connected with fixed block (12) of movable sleeve (11).

2. The full-thread screw with the root eliminating structure as claimed in claim 1, wherein: one end of the fixing rod (10) is fixedly connected with one end inside the reserved groove (8), and the reserved groove (8) is in a cross shape.

3. The full-thread screw with the root eliminating structure as claimed in claim 1, wherein: the top fixedly connected with mount pad (3) of second lead screw (4), the outside of mount pad (3) is provided with the external screw thread, the inside of first mounting groove (2) and second mounting groove (5) is provided with the internal thread, second lead screw (4) can be dismantled through between mount pad (3) and first mounting groove (2).

4. The full-thread screw with the root eliminating structure as claimed in claim 1, wherein: the rubber sleeve (6) is sleeved outside the screw head (7), the screw head (7) and the rubber sleeve (6) are identical in shape, and the screw head (7) is in a conical shape.

5. The full-thread screw with the root eliminating structure as claimed in claim 1, wherein: the four groups of reset springs (9) are arranged, and the reset springs (9) are distributed in the reserved groove (8) at equal intervals.

6. The full-thread screw with the root eliminating structure as claimed in claim 1, wherein: the movable sleeve (11) is sleeved outside the fixed rod (10) and can move.

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