A self-locking drum-type blind rivet

Abstract

The utility model discloses a self-locking drum-type core-pulling rivet, comprising a rivet cover, a rivet sleeve is fixedly connected to the middle of the bottom surface of the rivet cover, a core rod is inserted inside the rivet sleeve, a rivet head is fixedly connected to the bottom surface of the core rod, a thread is provided in the middle of the core rod, the core rod is threadedly connected to a fixing nut through the thread, a fixing seat is fixedly connected to the top surface of the right side of the rivet cover, a limiting buckle is hinged on the inner side of the fixing seat, and a plurality of limiting grooves are provided on the inner side of the limiting buckle. The utility model pulls the core rod by a rivet gun until the rivet gun breaks the core rod, and the rivet head moves upward to squeeze the rivet sleeve, and the strip hole facilitates the deformation of the rivet sleeve, thereby fixing the plate body, tightening the fixing nut to prevent the rivet sleeve and the rivet cover from gradually loosening during use, and the limiting buckle is sleeved on the outer side of the fixing nut, and the limiting groove limits the fixing nut to prevent the fixing nut from being loosened due to external force.

Description

Technical Field

[0001] The utility model relates to the technical field of blind rivets, in particular to a self-locking drum-type blind rivet. Background Art

[0002] Blind rivets are a type of rivet used for single-sided riveting, but they must be riveted using a special tool - a rivet gun (manual, electric, or pneumatic). During riveting, the rivet core is pulled by a special rivet gun to expand the rivet body and play a riveting role. This type of rivet is particularly suitable for riveting occasions where it is inconvenient to use ordinary rivets (which must be riveted from both sides), so it is widely used in construction, automobiles, ships, aircraft, machinery, electrical appliances, furniture and other products.

[0003] After long-term use, the fastening effect of the existing blind rivets gradually decreases, and the riveted parts are prone to loosening, which may cause a certain amount of looseness between the rivet and the riveted workpiece, affecting the riveting strength of the riveted workpiece. Utility Model Content

[0004] The utility model aims to provide a self-locking drum-type blind rivet to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a self-locking drum-type blind rivet, comprising a rivet cover, a rivet sleeve is fixedly connected to the middle part of the bottom surface of the rivet cover, a core rod is passed through the inside of the rivet sleeve, a rivet head is fixedly connected to the bottom surface of the core rod, a thread is provided in the middle part of the core rod, the core rod is threadedly connected to a fixing nut through the thread, a fixing seat is fixedly connected to the top surface of the right side of the rivet cover, a limiting buckle is hinged on the inner side of the fixing seat, and a plurality of limiting grooves are provided on the inner side of the limiting buckle.

[0006] Preferably, a plurality of strip-shaped holes are opened on the side surface of the rivet sleeve, and the plurality of strip-shaped holes are evenly distributed on the side surface of the rivet sleeve.

[0007] Preferably, a breaking groove is provided in the middle of the core rod, and the breaking groove is located above the thread.

[0008] Preferably, a protective cap is threadedly connected to the top end of the side surface of the rivet cover.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] The utility model uses a rivet gun to pull the core rod until the rivet gun breaks the core rod, and the rivet head moves upward to squeeze the rivet sleeve, and the strip hole facilitates the deformation of the rivet sleeve, thereby fixing the plate body, tightening the fixing nut to prevent the rivet sleeve and the rivet cover from gradually loosening during use, and the limiting buckle is sleeved on the outside of the fixing nut, and the limiting groove limits the fixing nut to prevent the fixing nut from being loosened due to external force. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of the utility model when viewed from above;

[0012] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0013] Figure 3 This is a schematic diagram of the core rod structure of the utility model;

[0014] Figure 4 It is a schematic diagram of the limit buckle structure of the utility model.

[0015] In the figure: 1. rivet cover; 2. rivet sleeve; 3. core rod; 4. rivet head; 5. thread; 6. fixing nut; 7. fixing seat; 8. limiting buckle; 9. limiting groove; 10. strip hole; 11. breaking groove; 12. protective cap. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-4 The utility model provides a technical solution: a self-locking drum-type blind rivet, comprising a rivet cover 1, a rivet sleeve 2 fixedly connected to the middle part of the bottom surface of the rivet cover 1, a core rod 3 passing through the inside of the rivet sleeve 2 and the middle part of the rivet cover 1, a rivet head 4 fixedly connected to the bottom surface of the core rod 3, a thread 5 opened in the middle of the core rod 3, the core rod 3 is threadedly connected to the fixing nut 6 through the thread 5, a fixing seat 7 is fixedly connected to the top surface of the right side of the rivet cover 1, a limiting buckle 8 is hinged on the inner side of the fixing seat 7, the limiting buckle 8 is made of elastic material, and a plurality of limiting grooves 9 are opened on the inner side of the limiting buckle 8.

[0018] A plurality of strip-shaped holes 10 are opened on the side surface of the rivet sleeve 2 , and the plurality of strip-shaped holes 10 are evenly distributed on the side surface of the rivet sleeve 2 .

[0019] The breaking groove 11 is formed in the middle of the core rod 3 , and is located above the thread 5 .

[0020] The protective cap 12 is threadedly connected to the top end of the side surface of the rivet cover 1 .

[0021] Working principle: When the utility model is in use, the protective cap 12 and the fixing nut 6 are removed, the rivet sleeve is passed through the installation plate body, the upper end of the core rod 3 is placed in the rivet gun, and the rivet gun pulls the core rod 3 until the rivet gun breaks the core rod 3, and the rivet head 4 moves upward to squeeze the rivet sleeve 2, and the strip hole 10 facilitates the deformation of the rivet sleeve 2, thereby fixing the plate body, tightening the fixing nut 6 to prevent the rivet sleeve 2 and the rivet cover 1 from gradually loosening during use, and the limiting buckle 8 is sleeved on the outside of the fixing nut 6, and the limiting groove 9 limits the fixing nut 6 to prevent the fixing nut 6 from being loosened by external force. The utility model has the advantages of easy use and good use effect.

[0022] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-locking drum-type blind rivet, comprising a rivet cover (1), characterized in that: A rivet sleeve (2) is fixedly connected to the middle of the bottom surface of the rivet cover (1), a core rod (3) is inserted into the interior of the rivet sleeve (2), a rivet head (4) is fixedly connected to the bottom surface of the core rod (3), a thread (5) is provided in the middle of the core rod (3), the core rod (3) is threadedly connected to a fixing nut (6) via the thread (5), a fixing seat (7) is fixedly connected to the top surface of the right side of the rivet cover (1), a limiting buckle (8) is hingedly connected to the inner side of the fixing seat (7), and a plurality of limiting grooves (9) are provided on the inner side of the limiting buckle (8).

2. A self-locking drum-type blind rivet according to claim 1, characterized in that: A plurality of strip-shaped holes (10) are provided on the side surface of the rivet sleeve (2), and the plurality of strip-shaped holes (10) are evenly distributed on the side surface of the rivet sleeve (2).

3. The self-locking drum-type blind rivet according to claim 1, characterized in that: A breaking groove (11) is provided in the middle of the core rod (3), and the breaking groove (11) is located above the thread (5).

4. The self-locking drum-type blind rivet according to claim 1, characterized in that: A protective cap (12) is threadedly connected to the top end of the side of the rivet cover (1).

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