CN212297215U

CN212297215U - Combined screw

Info

Publication number: CN212297215U
Application number: CN202020152731.9U
Authority: CN
Inventors: 张志国
Original assignee: Suzhou Farnberg Electronics Co ltd
Current assignee: Suzhou Farnberg Electronics Co ltd
Priority date: 2020-02-05
Filing date: 2020-02-05
Publication date: 2021-01-05
Anticipated expiration: 2030-02-05

Abstract

The utility model discloses a combination screw, including head and pole portion, the bottom of head is provided with pole portion, and pole portion from the top down has set gradually first smooth section, screw thread section and the smooth section of second, the top of first smooth section is around there being spring washer, and the bottom cover of first smooth section is equipped with flat washer, the jack has been seted up to the inside axial of the smooth section of second, and the middle part level of the smooth section of second has seted up positioning hole to run through perpendicularly between positioning hole and the jack, be provided with branch under the jack, and the middle part level of branch has seted up the via hole, and the bottom welding of branch has the stabilizer blade, the left side level of jack is provided with the round pin stick. This combination screw, the body of not only being convenient for and the location installation of supporting subassembly have improved the assembly efficiency of combination screw, have the function of buffering, increase friction and conflict area moreover to stability when having improved the combination screw use.

Description

Combined screw

Technical Field

The utility model relates to a screw technical field specifically is a combination screw.

Background

In the prior art, screws are widely applied to production activities of various industries, and are called industrial rice because of various types and styles. The combination screw is a combination, generally including a screw and a washer (a flat washer and a spring washer), and is a universal screw product.

However, the existing combined screw still has certain problems, and the specific problems are as follows:

1. the combined screw is often used for the purposes of connection or clamping and the like, and a plurality of components are often required to be additionally added according to the requirements of a working environment, but the actual assembly difficulty is increased because the screw body lacks a corresponding positioning structure;

2. when the screw is embedded to be installed or positioned and clamped, the stability of screw connection is required to be ensured, and the screw is prevented from loosening or slipping.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a combination screw possesses advantages such as the stability is strong when convenient reliable, the use of assembly to solve the problem that proposes in the above-mentioned background art.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a combined screw, includes head and pole portion, the bottom of head is provided with pole portion, and pole portion from the top down has set gradually first smooth section, screw thread section and the smooth section of second, the top of first smooth section is around having spring washer, and the bottom cover of first smooth section is equipped with flat washer, the jack has been seted up to the inside axial of the smooth section of second, and the middle part level of the smooth section of second has seted up positioning hole to run through perpendicularly between positioning hole and the jack, be provided with branch under the jack, and the middle part level of branch has seted up the via hole to the bottom welding of branch has the stabilizer blade, the left side level of jack is provided with the round pin stick.

Preferably, the outer side wall of the head part is provided with convex stripes at equal angles, and the center of the top of the head part is provided with an inner hexagonal sinking groove.

Preferably, the spring washer is of a single-ring structure, and the upper end and the lower end of the spring washer are respectively used for elastically abutting against the bottom end of the head and the top end of the flat washer.

Preferably, the diameter of the first smooth section is equal to the diameter of the second smooth section, and the diameters of the first smooth section and the second smooth section are both smaller than the outer diameter of the threaded section.

Preferably, the length of the pin is slightly smaller than the diameter of the second smooth section, and the length of the pin is larger than the diameter of the insertion hole.

Preferably, the supporting rod is used for being mutually nested with the jack, and the pin rod is used for penetrating through the positioning through hole and the through hole at one time to form a limiting structure.

(III) advantageous effects

Compared with the prior art, the utility model provides a combination screw possesses following beneficial effect:

1. according to the combined screw, the inner hexagonal sinking groove is formed in the top of the head, so that the combined screw can be conveniently sunk and screwed, the jack and the positioning through hole are formed in the second smooth section and vertically penetrate through the second smooth section, the pin rod and the support rod are respectively conveniently inserted through the through hole formed in the support rod, and the pin rod is slightly shorter than the diameter of the second smooth section, so that the blocking caused by the outward protrusion can be avoided, and the assembling efficiency of the combined screw is improved;

2. this combination screw is through suit spring washer, plain washer on first smooth section for the spring washer of single loop structure contradicts with head, plain washer elasticity respectively, is used for the top buffering, and through waiting angle setting striae on the lateral wall of head, the increase friction has the branch of stabilizer blade through ann inserting in the inside of jack, is used for the increase area of contradicting, thereby has improved the stability when combination screw uses.

Drawings

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

fig. 2 is a schematic view of the main sectional structure of the present invention.

In the figure: 1. a head portion; 2. a raised stripe; 3. a spring washer; 4. a flat washer; 5. a rod portion; 501. a first smooth section; 502. a threaded segment; 503. a second smooth section; 6. a pin bar; 7. positioning the through hole; 8. a via hole; 9. a strut; 10. a support leg; 11. a jack; 12. an inner hexagonal sinking groove.

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 work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a combined screw, including head 1 and pole portion 5, the bottom of head 1 is provided with pole portion 5, and pole portion 5 from the top down has set gradually first smooth section 501, screw thread section 502 and the smooth section 503 of second, the top of first smooth section 501 is around having spring washer 3, and the bottom cover of first smooth section 501 is equipped with flat washer 4, jack 11 has been seted up to the inside axial of the smooth section 503 of second, and positioning hole 7 has been seted up to the middle part level of the smooth section 503 of second, and run through perpendicularly between positioning hole 7 and the jack 11, be provided with branch 9 under jack 11, and the middle part level of branch 9 has seted up via hole 8, and the bottom welding of branch 9 has stabilizer blade 10, the left side level of jack 11 is provided with round pin stick 6.

As shown in the figures 1 and 2, the outer side wall of the head part 1 is provided with convex stripes 2 at equal angles for increasing friction, and the center of the top of the head part 1 is provided with an inner hexagonal sinking groove 12 for facilitating sinking screwing.

As shown in fig. 1 and 2, the spring washer 3 is of a single-ring structure, and the upper end and the lower end of the spring washer 3 are respectively used for elastically abutting against the bottom end of the head 1 and the top end of the flat washer 4 for top buffering.

As shown in fig. 1, the diameter of the first smooth section 501 is equal to the diameter of the second smooth section 503, and the diameters of the first smooth section 501 and the second smooth section 503 are both smaller than the outer diameter of the threaded section 502, so as to avoid generating blockage.

As shown in fig. 2, the length of the pin 6 is slightly smaller than the diameter of the second smooth section 503, and the length of the pin 6 is larger than the diameter of the insertion hole 11, so as to avoid the end of the pin 6 protruding outwards to cause blockage.

As shown in FIG. 2, the supporting rod 9 is used for being nested with the jack 11, and the pin 6 is used for penetrating through the positioning through hole 7 and the through hole 8 at a time and forming a limiting structure, so that positioning and installation are facilitated.

The working principle is as follows: when the combined screw is used for the sunk installation, according to the attached

drawings

1 and 2, the inner hexagonal sunk groove 12 at the top of the head part 1 can be directly screwed, so that the head part 1 and the rod part 5 are integrally embedded into the workpiece and have a connecting effect, meanwhile, along with the gradual screwing of the combined screw, the spring washer 3 on the first smooth section 501 is stressed and compressed between the head part 1 and the flat washer 4 and is reversely and elastically collided for top buffering, and the friction between the spring washer and the workpiece can be increased and the looseness can be avoided by arranging the convex stripes 2 on the outer side wall of the head part 1 at equal angles;

when being used for the centre gripping work piece, the accessible is at the inside arrangement branch 9 of jack 11, then the stabilizer blade 10 through branch 9 bottom increases the conflict area between with the work piece, before this, through set up jack 11, positioning hole 7 in second smooth section 503, and run through perpendicularly between the two, and through set up via hole 8 in branch 9, be convenient for respectively branch 9, the arrangement of pin 6, because the length of pin 6 slightly is less than the diameter of second smooth section 503, and the length of pin 6 is greater than the diameter of jack 11, avoid the evagination to cause and block, finally accomplish the whole work of this combination screw.

In conclusion, this combination screw, the location installation of body and supporting subassembly of not only being convenient for has improved the assembly efficiency of combination screw, has the function of buffering, increase friction and conflict area moreover to stability when having improved the combination screw use.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A combination screw, includes head (1) and pole portion (5), its characterized in that: the bottom end of the head part (1) is provided with a rod part (5), the rod part (5) is sequentially provided with a first smooth section (501), a threaded section (502) and a second smooth section (503) from top to bottom, the top of the first smooth section (501) is surrounded by a spring washer (3), a flat gasket (4) is sleeved at the bottom of the first smooth section (501), a jack (11) is axially arranged in the second smooth section (503), and the middle part of the second smooth section (503) is horizontally provided with a positioning through hole (7), the positioning through hole (7) is vertically penetrated with the jack (11), a support rod (9) is arranged right below the jack (11), the middle part of the support rod (9) is horizontally provided with a through hole (8), and the bottom welding of branch (9) has stabilizer blade (10), the left side level of jack (11) is provided with round pin stick (6).

2. The combination screw of claim 1, wherein: the outer side wall of the head (1) is provided with convex stripes (2) at equal angles, and the center of the top of the head (1) is provided with an inner hexagonal sinking groove (12).

3. The combination screw of claim 1, wherein: the spring washer (3) is of a single-ring structure, and the upper end and the lower end of the spring washer (3) are respectively used for elastically abutting against the bottom end of the head (1) and the top end of the flat washer (4).

4. The combination screw of claim 1, wherein: the diameter of the first smooth section (501) is equal to that of the second smooth section (503), and the diameters of the first smooth section (501) and the second smooth section (503) are both smaller than the outer diameter of the threaded section (502).

5. The combination screw of claim 1, wherein: the length of the pin rod (6) is slightly smaller than the diameter of the second smooth section (503), and the length of the pin rod (6) is larger than the diameter of the insertion hole (11).

6. The combination screw of claim 1, wherein: the supporting rod (9) is used for being mutually nested with the jack (11), and the pin rod (6) is used for penetrating through the positioning through hole (7) and the through hole (8) at a time and forming a limiting structure.