CN212131023U

CN212131023U - Stainless steel Yuanbao bolt

Info

Publication number: CN212131023U
Application number: CN202020503958.3U
Authority: CN
Inventors: 周乾
Original assignee: Zhejiang Jingyi Standard Parts Co ltd
Current assignee: Zhejiang Jingyi Standard Parts Co ltd
Priority date: 2020-04-08
Filing date: 2020-04-08
Publication date: 2020-12-11
Anticipated expiration: 2030-04-08

Abstract

The utility model relates to a standard component technical field, concretely relates to be used in a stainless steel yuan bao bolt on the positive negative terminal of automobile storage battery. The utility model discloses a body, the head department of body is equipped with the external screw thread, the afterbody of body is equipped with T type head, the shape of T type head is rectangular shape, the minor face of T type head is equipped with the bellied cusp of outside screw thread direction, cusp, T type head and body form a recess. The beneficial effects of the utility model are that solved the easy thread condition of dying of problem of rustting and copper product material when long-term circular telegram, this product rust-resistant ability reinforce, the relative copper product of manufacturing cost is cheap a lot of, and is convenient more convenient when installing simultaneously.

Description

Stainless steel Yuanbao bolt

Technical Field

The utility model relates to a standard component technical field, concretely relates to be used in a stainless steel yuan bao bolt on the positive negative terminal of automobile storage battery.

Background

The automobile storage battery is used for supplying power for fuel automobiles, new energy electric automobiles and hybrid electric automobiles, the voltage of the automobile storage battery is usually 12V, the automobile storage battery is usually used for opening and closing of automobile doors, supplying power for lamps, starting the automobiles and the like, for fuel household cars, particularly trucks, large ignition current is needed when the automobiles are started, instantaneous current can reach hundreds of amperes, 300A current is very common, the action time can be 3 seconds to 5 seconds, and large heat can be released.

The bolts on the positive and negative terminals of the automobile storage battery on the market are usually standard bolts made of common iron materials, the surfaces of the bolts are galvanized to prevent rust, and the storage battery is usually electrified for a long time, so that the problems that the common bolts are subjected to electrochemical corrosion, are oxidized quickly to rust, and the threads are easy to slip and the like can be caused. The connection of positive and negative terminal posts on the automobile storage battery is generally divided into two types, one type is a raised cylinder and is clamped by a connector clamp, and the other type is internal threads on the positive and negative terminal posts. The joint checkpost is with bolt and nut cooperation chucking terminal, just so need 2 spanners to carry the bolt separately and the nut is screwed up the operation inconvenient, and the internal thread of terminal upper band is that directly adopt the bolt to screw into and compress tightly the electric wire. The bolts on the positive and negative terminals of part of the automobile storage battery are made of copper materials, but the copper materials are softer, and threads can be seized under the condition of high temperature for a long time.

SUMMERY OF THE UTILITY MODEL

In order to overcome the deficiency of the background art, the utility model provides a stainless steel Yuanbao bolt.

The technical scheme of the utility model is that: the T-shaped head is rectangular, the short edge of the T-shaped head is provided with a tooth shape protruding towards the direction of the external thread, and the tooth shape, the T-shaped head and the body form a groove.

Preferably, the side of the tooth close to the external thread is provided with a slope, so that the groove is in a shape with a large outside and a small inside.

Preferably, the number of the teeth is 2 and the teeth are symmetrical to each other.

Preferably, the short side of the T-shaped head and the long side of the T-shaped head are provided with rounded transitions, and the end of the T-shaped head away from the tooth shape is provided with a chamfer.

Preferably, the length of the long side of the T-shaped head is 1.5 to 2.5 times the length of the short side of the T-shaped head.

Preferably, the length of the long side of the T-head is 2 times the length of the short side of the T-head.

Preferably, the T-shaped head is provided with a mark.

Preferably, the material of the body is stainless steel.

Preferably, the body is made of austenitic stainless steel, and the tensile strength is more than or equal to 700 MPa.

The beneficial effects of the utility model are that solved the easy thread condition of dying of problem of rustting and copper product material when long-term circular telegram, this product rust-resistant ability reinforce, the relative copper product of manufacturing cost is cheap a lot of, and is convenient more convenient when installing simultaneously.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a left side view of the present invention.

Fig. 3 is a right side view of the present invention.

In fig. 1-3, a body 1, a head 11, a tail 12, an external thread 2, a T-shaped head 3, a short side 31, a chamfer 32, a long side 33, a fillet 34, a tooth 4, a bevel 41, a groove 42, and a mark 5.

Detailed Description

Embodiments of the invention are further described below with reference to the accompanying drawings:

as shown in fig. 1-3, the present embodiment provides a stainless steel ingot bolt, which includes a body 1, wherein a head 11 of the body 1 is provided with an external thread 2, a tail 12 of the body 1 is provided with a T-shaped head 3, the T-shaped head 3 is shaped like a rectangular block, a short side 31 of the T-shaped head 3 is provided with a tooth 4 protruding toward the direction of the external thread 2, and the tooth 4, the T-shaped head 3 and the body 1 form a groove 42.

When the utility model discloses the product is connected on the positive and negative terminal of automobile storage battery through connecting the checkpost, bellied cusp 4 can mutually support with connecting the checkpost on the T type head 3, recess 42 card goes into to connect on the checkpost, is equivalent to a spanner and fixes T type head 3, only need during the installation screw up with the utility model discloses the complex nut can, need not use two spanners, operation boundary is simple.

When the utility model discloses when the product direct mount is on the positive and negative terminal of automobile storage battery, just place the electric wire in the recess 42, make 2 carabines of external screw thread go into the internal thread of the positive and negative terminal of automobile storage battery in the head of hand direct T type 3. During screwing, the wire is wound around the body 1 in the groove 42 in a rotating mode and is finally pressed on the positive and negative binding posts by the T-shaped head 3.

The sizes of the connector clips produced by different specifications and different manufacturers can be different to a certain extent, but the sizes and the capacities of the automobile storage batteries are close to each other, so that the sizes of the connector clips cannot be different to a large extent. In order to make the utility model of the product easy to match, it is preferable that the side of the tooth 4 close to the external thread 2 is provided with a slope 41 to make the groove 42 in a shape of big outside and small inside. Different sizes on the joint checkpost can all match the chucking mutually with big inside and small outside recess 42 like this, and the card that the size is big is first some outward, and the card that the size is little is first some inward.

In order to make the product of the invention more compact with the connector card, it is preferable that the number of teeth 4 is 2 and symmetrical to each other.

For a large-scale mass production product, it is important to reduce the single production cost, and the blank is basically manufactured by a cold heading process. Preferably, the short side 31 of the T-head 3 is provided with a rounded corner 34 transition with the long side 33 of the T-head 3, and the end of the T-head 3 away from the tooth 4 is provided with a chamfer 32. The chamfer 32 and the fillet 34 facilitate production of a cold heading process, reduce right angles, enable the user to watch the workpiece relatively smoothly and not to generate burrs, and prevent the user from being injured by hand when the workpiece is twisted by hand.

From the viewpoint of beauty, practicality, cost, etc., it is preferable that the length of the long side 33 of the T-shaped head 3 is 1.5 times to 2.5 times the length of the short side 31 of the T-shaped head 3.

Preferably, the length of the long side 33 of the T-head 3 is 2 times the length of the short side 31 of the T-head 3. If the weight of the product is more than 2 times, the weight of the product is correspondingly increased, and the natural cost is also improved; less than 2 times the space of the recess 42 is relatively narrow and not very well used and installed.

In order to conveniently display trademarks, marking materials and marking specifications, preferably, the T-shaped head 3 is provided with a mark 5. The mark 5 can be a convex character protruding upwards, and the mark 5 can also be a concave character inwards.

In order to prevent the iron bolt from rusting, the problem that the threads are easily seized due to high temperature when the copper material is used for a long time is solved, and meanwhile, the cost of the copper material is relatively high, preferably, the body 1 is made of stainless steel. The stainless steel material has good antirust capability.

Preferably, the body 1 is made of austenitic stainless steel, and the tensile strength is more than or equal to 700 MPa. For example, 304 austenitic stainless steel is selected, the 304 austenitic stainless steel belongs to steel produced in large scale in China, the cost is relatively low, the processing is convenient, the antirust capacity is strong, the strength is high, and the bolt manufactured by iron materials is solved.

The present embodiment should not be considered as a limitation of the present invention, but any modification made based on the spirit of the present invention should be within the scope of the present invention.

Claims

1. The utility model provides a stainless steel yuan bao bolt, includes body (1), head (11) department of body (1) is equipped with external screw thread (2), its characterized in that: the T-shaped head (3) is arranged at the tail part (12) of the body (1), the T-shaped head (3) is rectangular, a tooth-shaped part (4) protruding towards the direction of the thread (2) is arranged on a short side (31) of the T-shaped head (3), and a groove (42) is formed by the tooth-shaped part (4), the T-shaped head (3) and the body (1).

2. The stainless steel shoe bolt of claim 1, wherein: the side of the tooth-shaped part (4) close to the external thread (2) is provided with an inclined plane (41) to enable the groove (42) to be in a shape with a large outside and a small inside.

3. The stainless steel shoe bolt of claim 2, wherein: the number of the teeth (4) is 2 and the teeth are symmetrical to each other.

4. The stainless steel shoe bolt of claim 1, wherein: the short side (31) of the T-shaped head (3) and the long side (33) of the T-shaped head (3) are provided with round corners (34) for transition, and the end, far away from the tooth-shaped head (4), of the T-shaped head (3) is provided with a chamfer (32).

5. The stainless steel shoe bolt of claim 4, wherein: the length of the long side (33) of the T-shaped head (3) is 1.5 to 2.5 times that of the short side (31) of the T-shaped head (3).

6. The stainless steel shoe bolt of claim 5, wherein: the length of the long side (33) of the T-shaped head (3) is 2 times of the length of the short side (31) of the T-shaped head (3).

7. The stainless steel shoe bolt of claim 1, wherein: and the T-shaped head (3) is provided with a mark (5).

8. The stainless steel shoe bolt of claim 1, wherein: the body (1) is made of stainless steel.

9. The stainless steel shoe bolt of claim 8, wherein: the body (1) is made of austenitic stainless steel, and the tensile strength is larger than or equal to 700 MPa.