CN217421825U

CN217421825U - Spring screw with insulating function

Info

Publication number: CN217421825U
Application number: CN202221620799.0U
Authority: CN
Inventors: 郭书琴; 杨继
Original assignee: Dongguan Jinri Hardware Products Co ltd
Current assignee: Dongguan Jinri Hardware Products Co ltd
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2022-09-13
Anticipated expiration: 2032-06-27

Abstract

The utility model relates to a screw especially relates to a spring screw with insulating function. The utility model discloses a spring screw with insulating function, include: the head and the straight rod part are fixedly connected to form an integrated structure, the screw insulation sleeve is sleeved on the outer side of the head and the straight rod part, the integrated structure formed by the head and the straight rod part is detachably connected with the screw insulation sleeve, threads are arranged on the outer circular surface of the lower section part of the screw insulation sleeve, and a spring is sleeved on the outer side of the screw insulation sleeve. The utility model has the advantages that after the screw insulating sleeve is screwed into the screw hole of the equipment, the spring has elasticity on the equipment, thereby playing a role in fastening the screw insulating sleeve and preventing the equipment from vibrating to loosen the screw; after the head, the straight rod part, the threaded rod and the screw insulating sleeve are matched, no metal material is exposed outside, and therefore the whole range is insulating.

Description

Spring screw with insulating function

Technical Field

The utility model relates to a screw especially relates to a spring screw with insulating function.

Background

In the conventional screws, the screws are generally made of metal. After the screw is used on the circuit board, the possibility of short circuit is greatly increased and the circuit board is damaged because other electronic devices installed on the circuit board contact the screw. In addition, vibration may occur during operation after installation of the equipment, causing the threaded screw to loosen due to vibration.

SUMMERY OF THE UTILITY MODEL

For solving the problem that exists among the background art, the utility model provides a spring screw with insulating function.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

the utility model provides a spring screw with insulating function which characterized in that includes: the screw insulation sleeve is detachably connected with the integrated structure formed by the head part and the straight rod part, threads are arranged on the outer circular surface of the lower section part of the screw insulation sleeve, and a spring is sleeved on the outer side of the screw insulation sleeve.

Furthermore, an insulating rubber ring is fixed on the lower edge of the side face of the head.

Further, the screw insulating sleeve is composed of an upper section and a lower section, and both the upper section and the lower section are of a cavity structure.

Furthermore, the straight rod part is inserted into the upper section part, the lower end of the straight rod part is fixedly provided with a threaded rod, and the threaded rod is in threaded connection with the inner cavity of the lower section part.

Furthermore, the diameter of the cavity in the upper section part is the same as that of the straight rod part,

furthermore, one end of the spring, which is close to the head, is fixedly connected with the screw insulating sleeve, and the spring is sleeved on the upper section.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. screwing the screw insulating sleeve into the equipment screw hole, screwing the head, the straight rod part and the threaded rod into the screw insulating sleeve, and extruding the lower section part by the threaded rod to screw the lower section part and the equipment screw hole tightly;

2. after the screw insulating sleeve is screwed into the screw hole of the equipment, the spring has elasticity on the equipment, so that the screw insulating sleeve is fastened, and the equipment is prevented from vibrating to loosen a threaded connection structure;

3. after the head, the straight rod part, the threaded rod and the screw insulating sleeve are matched, no metal material is exposed outside, so that the whole range is insulated, and the rigidity degree of the threaded connection structure is ensured.

Drawings

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

fig. 2 is a schematic view of the internal structure of the middle screw insulating sleeve of the present invention.

In the figure: 1. a head portion; 2. an insulating rubber ring; 3. a spring; 4. a lower section; 5. a screw insulating sleeve; 6. an upper section; 7. an internal thread; 8. a threaded rod; 9. a straight rod part.

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.

As shown in fig. 1-2, the technical solution adopted by the present invention is as follows: a spring screw with an insulation function comprises a head part 1. The head part 1 is fixedly connected with a straight rod part 9, and a threaded rod 8 is fixed at the lower end of the straight rod part 9. Thus, the head part 1, the straight rod part 9 and the threaded rod 8 form an integrated structure to form the internal screw assembly. The outer side of the inner screw component is sleeved with a screw insulating sleeve 5. The head part 1 is made of insulating materials, is exposed and cannot conduct electricity, and electric shock danger is avoided.

An insulating rubber ring 2 is fixed on the lower edge of the side surface of the head part 1. When the screw insulating sleeve 5 is sleeved on the outer sleeve of the internal screw assembly, the lower end of the insulating rubber ring 2 is contacted with the upper surface of the screw insulating sleeve 5, so that the gap between the head 1 and the screw insulating sleeve 5 is sealed, and dust is prevented from entering.

The screw insulation sleeve 5 consists of an upper section 6 and a lower section 4. The screw insulating sleeve 5 body is made of insulating plastic materials, and the screw insulating sleeve 5 has certain plasticity and can not be used independently. The upper section 6 and the lower section 4 are both hollow.

The diameter of the cavity in the upper section part 6 is the same as that of the straight rod part 9. The outer side of the lower section part 4 is provided with an external thread. The cavity in the lower section part 4 is provided with an internal thread 7, and a threaded rod 8 is matched with the internal thread 7 in the lower section part 4. The threaded rod 8 is matched with the internal thread of the lower section 4. After the screw insulating sleeve 5 is screwed into the screw hole of the equipment, the inner screw assembly is screwed into the screw insulating sleeve 5. The threaded rod 8 is screwed into the cavity in the lower section 4, so that the threaded rod 8 and the threaded hole diameter of the device cooperate to extrude the lower section 4, so that the screw insulation sleeve 5 is fastened in the threaded hole and the inner screw assembly is fastened in the screw insulation sleeve 5.

One end of the spring 3 close to the head 1 is fixedly connected with the screw insulating sleeve 5, and the spring 3 is sleeved on the upper section part 6. After the screw insulating sleeve 5 is screwed into the screw hole of the equipment, the spring 3 has elasticity on the equipment, so that the screw insulating sleeve 5 is fastened, and the equipment is prevented from vibrating to loosen the screw.

In the working process, after the screw insulating sleeve 5 is screwed into the equipment screw hole, the inner screw assembly is screwed into the screw insulating sleeve 5. The threaded rod 8 enters the lower section 4 and is in threaded connection with the lower section 4, and the straight rod part 9 enters the upper section 6. After the screw insulating sleeve 5 is screwed into the screw hole of the equipment, the spring 3 is extruded, so that the screw insulating sleeve 5 is fastened, and the equipment is prevented from vibrating to loosen the screw.

After the inner screw assembly is matched with the screw insulating sleeve 5, no metal material is exposed outside, so that the whole range is insulating.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a spring screw with insulating function which characterized in that includes: head (1), head (1) and straight rod portion (9) fixed connection become the integral structure, head (1) and straight rod portion (9) outside cover have screw insulation cover (5), the integral structure that head (1) and straight rod portion (9) formed is detachable with screw insulation cover (5) and is connected, is provided with the screw thread on the outer disc of lower section portion (4) of screw insulation cover (5), screw insulation cover (5) outside cover has spring (3).

2. The spring screw with the insulating function according to claim 1, characterized in that: and an insulating rubber ring (2) is fixed at the lower edge of the side surface of the head part (1).

3. The spring screw with the insulating function according to claim 1, characterized in that: the screw insulating sleeve (5) is composed of an upper section part (6) and a lower section part (4), and the upper section part (6) and the lower section part (4) are both of a cavity structure.

4. The spring screw with the insulating function according to claim 3, characterized in that: the straight rod part (9) is inserted into the upper section part (6), a threaded rod (8) is fixedly arranged at the lower end of the straight rod part (9), and the threaded rod (8) is in threaded connection with the inner cavity of the lower section part (4).

5. The spring screw with the insulating function according to claim 4, wherein: the diameter of the cavity in the upper section part (6) is the same as that of the straight rod part (9).

6. The spring screw with the insulating function according to claim 3, characterized in that: one end of the spring (3) close to the head (1) is fixedly connected with the screw insulating sleeve (5), and the spring (3) is sleeved on the upper section (6).