CN201696420U - Fastening structure of blind rivet - Google Patents

Abstract

The utility model relates to a fastening structure of a blind rivet, which consists of a rivet rod and a rivet sleeve, wherein the rivet rod is generally in a T shape, the end edge of the rivet rod forms a rivet head with a larger diameter, the rivet sleeve is in an inverted T shape and is provided with a hollow sleeve, and a stop part is extended outwards from the tail end of the sleeve; the nail sleeve forms a deformation section at the proper part of the circumference of the middle section of the sleeve, and the inner wall of the tail end forms a second fastening section; when the nail rod is sleeved on the nail sleeve and fastened by embedding the first fastening section and the second fastening section, the expansion rod section pushes the deformation section to locally expand outwards in a V shape to deform, the outward expansion area of the deformation section is relatively increased along with the increase of the embedding part of the first fastening section and the second fastening section, and then the deformation section is used for pressing and fastening fixed objects, so that the effect of increasing the fastening structure of the pull nail is achieved.

Description

The fastening structure of the rivet

technical field

The utility model refers to a pull rivet, which is related to its fastening structure.

Background technique

Rivet is the abbreviation of Rivet Rivet, which is a tool used to fix two plates together. Generally, the rivet will be used with the rivet gun. The method of use is to put the rivet into the mouth of the rivet gun, hold the handle of the rivet gun with your hand, put the rivet head into the nail hole of the plate and close it On the hole, press the handle firmly with your hand, and the head of the nail will be expanded outward by the torque of the nail gun, so that the materials will be tightly bonded together, and the force will be kept until the nail stem is torn off. Pull nails are suitable for riveting work that can be completed by one-side construction. The construction and operation are very convenient and fast, and will not damage the workpiece.

Known from the prior art, the general pull studs are mainly made of metal. The strength of the metal pull studs is sufficient and the fixation is good, which is widely accepted by the market. However, the metal pull studs also have some disadvantages, such as easy to rust, conductive, and relatively costly. Expensive etc. In order to meet the needs of some special occasions, the industry has also developed some plastic pull studs. The biggest advantages of plastic pull studs are waterproof and rust-free, good flexibility and low cost. For example, the creation disclosed in the patent case "Improved Structure of Pull Stud" published in Taiwan, China, No. 492526, its structural design generally includes a hollow cap nail, an expansion stop head plug and a guide pull rod. The hollow cap nail has a barrel Body part, a socket part and a visor part, the expansion stop head plug has a first end, a cone part and a second end, the cone part of the expansion stop head plug is between the first end and the second end Between the ends, the guiding rod has a thinned end and a rod body, the thinned end can be combined with the second end of the expansion-stop head plug, and the first end of the expansion-stop head plug is provided with a brake structure. When the above-mentioned conventional case is used, the structure of the clamped object is unstable due to the expansion of the head. The main reason is that the expansion area of the head is too small, resulting in insufficient clamping surface. In addition, when the pull nail clamps the workpiece to a fixed state, the conventional creation only uses the fastening structure that the two sides of the cone in the shape of <> are clamped in the cylinder, and cannot securely fix the workpiece, resulting in a lack of use. There is a need for further improvement.

Utility model content

The main purpose of the utility model is to provide a fastening structure of the pull rivet, so that when the pull rivet clamps and fixes the workpiece, its clamping part can have a larger clamping area, and a fastening structure that is stable and not easy to loose The stability and performance of the pull nail to clamp the workpiece.

For reaching above-mentioned purpose, the technical scheme that the utility model adopts is:

A fastening structure for pull rivets, comprising a nail shank and a nail sleeve, the nail shank is a rod body and a nail head with a larger diameter is formed on the end edge, and the nail sleeve has a hollow sleeve, and is attached to the sleeve The end forms a stopper, wherein, the rod body of the nail rod adjacent to the nail head forms a bar expansion section and a first fastening section, and the nail sleeve forms a deformed section at an appropriate part of the casing circumference, and the In the second fastening section, the outer diameter of the expanding rod section is greater than the inner diameter of the casing.

The first fastening section and the second fastening section are respectively composed of a plurality of unilaterally inclined teeth.

The first fastening section and the second fastening section are respectively composed of several V-shaped conical teeth.

The deformed section of the nail sleeve is formed by cutting a number of slot holes along the circumferential direction in the middle section of the sleeve section.

The body of the nail shank shrinks inwardly to form a neck at a suitable place adjacent to the first fastening section.

Adopt the above-mentioned scheme, because the rod body of the nail shank of the present utility model forms a rod expansion section and the first fastening section, and the nail sleeve forms a deformation section and a second fastening section at an appropriate position in the middle section of the casing, when the nail shank When the nail sleeve is fitted and fastened by the first fastening section and the second fastening section, the expanding rod section pushes the deformed section and expands in a V-shape locally to deform, and along with the first fastening section With the increase of the fitting part between the fastening section and the second fastening section, the outwardly expanded area of the deformed section is relatively increased, and then the deformed section is used to press against and tighten the fixed object, and the space for clamping the workpiece by the pull rivet is increased. area, and the first fastening section and the second fastening section are embedded and fixed together to achieve the effect of increasing the fastening structure of the pull stud.

The utility model will be described in detail below in conjunction with preferred embodiments and accompanying drawings.

Description of drawings

Fig. 1 is the three-dimensional assembly drawing of the present utility model;

Fig. 2 is a three-dimensional exploded view of the utility model;

Fig. 3, 3A, 3B are combined sectional views of the utility model;

Fig. 4, 4A, 4B are another combined sectional view of the utility model;

Fig. 5 is the use schematic diagram of the utility model;

Fig. 6 is a schematic diagram of the completed use of the utility model.

Description of main component symbols

10 Nail rod 11 Rod body 12 Nail head

13 Expansion rod section 14 Fastening section 15 Neck

20 Nail Sets 21 Sleeves 211 Slotted Holes

22 Stopping part 23 Deformation section 24 Second fastening section

Detailed ways

Please refer to Fig. 1 to Fig. 6, which is the fastening structure of the rivet of the present invention, which includes a nail shank 10 and a nail sleeve 20. Pull the end of the nail rod 10 to achieve the purpose of clamping and fixing the workpiece, wherein:

The nail rod 10 is roughly T-shaped, and is a rod body 11 with a larger-diameter nail head 12 formed on the end edge. And a first fastening section 14 composed of several teeth. As shown in FIGS. 3 , 3A, 3B, 4 , 4A, and 4B, the tooth portion of the first fastening section 14 is a unilateral inclined tooth portion, or a V-shaped conical tooth portion. In addition, the rod body 11 adjoins the appropriate part of the first fastening section 14, and shrinks inwardly to form a neck 15, which is used as a pull nail to finish fixing the object, and the tail end of the nail rod is designed to be broken.

The nail sleeve 20 is in an inverted T shape, has a hollow sleeve 21, and a stopper 22 integrally formed at the end of the sleeve 21, and a number of slots 211 are cut along the circumferential direction in the middle of the sleeve 21. A deformation section 23 is formed, and at the same time, a second fastening section 24 formed by a plurality of teeth is formed on the inner wall surface of the end of the sleeve 21 . The second fastening section 24 is the same as the tooth section of the first fastening section 14 , and can be a unilateral inclined tooth section or a V-shaped conical tooth section structure.

When the utility model pull nail is in use, as shown in Figures 3, 5, and 6, after the nail sleeve 20 is penetrated into two inner edges of workpieces to be fixed, the nail rod 10 is put through the inner edge of the sleeve pipe 21. And make the nail pulling gun 30 and the rod body 11 end of the nail rod 10 fixed. When the nail pulling gun 30 is activated to pull the nail rod 10 to engage the first fastening section 14 with the second fastening section 24, because the outer diameter of the expanding rod section 13 is larger than the deformation section of the sleeve 21 23 inner diameter, so the expanded rod section 13 will push the deformed section 13 partially outward to expand and deform in a V shape. With the increase of the fitting position between the first fastening section 14 and the second fastening section 24 , the outward expansion area of the deformation section 23 also relatively increases. As shown in Figure 6, when the nail sleeve 10 and the nail sleeve 20 are combined to the limit by the fitting of the first fastening section 14 and the second fastening section 24, the rod body 11 will break from the position of the neck 15; and deform The segment 23 will be extruded into a flat shape, and further pressed against the surface of the workpiece, thereby increasing the force bearing area of the clamping and fixing of the workpiece. At the same time, the first fastening section 14 and the second fastening section 24 will present a stable fixed structure through the close embedding of the teeth and the teeth, which can prevent the fixing structure of the workpiece from loosening and increase the effect of the rivet fastening structure. Effect.

In summary, the utility model has excellent progressive practicability among similar products. The above-mentioned embodiments are only used to illustrate the utility model, not to limit the implementation of the utility model, without departing from the utility model. Various equivalent replacements, modifications and applications made should fall within the scope of the present utility model.

Claims (5)

1. the fastening structure of a blind rivet comprises a nail bar and nail and overlaps, and this nail bar is the ailhead that a body of rod and ora terminalis form big footpath, and this nail overlaps the sleeve pipe with a hollow, and forms a stopper part in this tube ends, it is characterized in that:

The body of rod of adjacent this ailhead of this nail bar forms a spreader bar section and first fastening section, should then form deformation section in sleeve pipe circumference suitable position by the nail cover, and be positioned at terminal second fastening section, and the external diameter of this spreader bar section is greater than the internal diameter of this sleeve pipe.

2. the fastening structure of blind rivet as claimed in claim 1 is characterized in that: this first fastening section and second fastening section are monolateral oblique tooth portion and are constituted by some respectively.

3. the fastening structure of blind rivet as claimed in claim 1, it is characterized in that: this first fastening section and second fastening section is made of some V-shaped taper tooth portions respectively.

4. the fastening structure of blind rivet as claimed in claim 1 is characterized in that: the deformation section of this nail cover is along the circumferential direction to cut open in this cover section position, stage casing to establish some slotted eyes and constitute.

5. the fastening structure of blind rivet as claimed in claim 1, it is characterized in that: the body of rod of this nail bar inwardly shortens a neck in abutting connection with this appropriate location of first fastening section.

Images