Anti-falling rivet

Abstract

The utility model relates to the technical field of rivet connection, and discloses an anti-falling rivet which comprises a rivet rod, the end portion of the rivet rod is fixedly connected with a lap joint rod, the other end of the lap joint rod is detachably connected with a connecting rod, the other end of the connecting rod is fixedly connected with an inclined table, the other side of the inclined table is fixedly connected with an extrusion head, and the extrusion head is fixedly connected with the rivet rod. A riveting barrel is slidably connected to the periphery of the riveting rod, a fixing cap is fixedly connected to one side of the riveting barrel, a guide groove is formed in the outer side of the extrusion head, the thickness of the end of the riveting barrel is matched with the radian of the guide groove, and an anti-skid assembly is fixedly connected to the outer side of the riveting barrel. According to the utility model, through the mutual cooperation of the sloping bench and the guide groove, when the rivet cylinder shrinks and deforms, the deformation of the end part can be guided, so that the rivet cylinder gets close to a workpiece, thereby increasing the riveting strength, and then through the mutual cooperation of the anti-slip strip I and the anti-slip strip II, the sliding after riveting can be reduced, thereby ensuring the riveting effect.

Description

Technical Field

[0001] The utility model relates to the technical field of rivet connection, in particular to an anti-falling 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 ordinary rivets are inconvenient to use, so it is widely used in construction, automobiles, ships, aircraft, machinery, electrical appliances, furniture and other products. Among them, open-type flat round head blind rivets are the most widely used, countersunk head blind rivets are suitable for riveting occasions that require smooth surfaces, and closed-type blind rivets are suitable for riveting occasions that require higher loads and certain sealing properties.

[0003] After searching, Chinese patent announcement number: CN219605767U discloses a connecting rivet, which relates to the technical field of rivet production; and the utility model includes a connecting rivet barrel, the upper end face of the connecting rivet barrel is fixedly connected with a fixing cap, the lower end face of the connecting rivet barrel is fixedly connected with an extrusion barrel, and a plurality of connecting grooves are provided below the outer wall of the extrusion barrel; by providing a connecting groove below the outer wall of the extrusion barrel, an extension groove is provided below the inner wall of the extrusion barrel, and the pull rod is inserted into the rivet gun, and the rivet gun is started, and the extrusion head will first enter the interior of the extrusion barrel through the extension groove, and the extension groove is provided to facilitate the introduction of the extrusion head, and the connection groove is provided to facilitate the extrusion head to extrude the outer wall of the extrusion barrel, so that the lower square of the outer wall of the extrusion barrel is deformed and expanded, thereby fixing the connecting piece, and then the rivet gun breaks the connecting rod, and the outer wall of the connecting rod is provided with a cutting groove, and the cutting groove will fit on the cutting ring on the inner wall of the fixing ring, and the cutting ring is against the cutting groove, which is convenient for the staff to quickly break the connecting rod.

[0004] Although the above technical solution realizes the breaking of the rivet core nail, thereby improving work efficiency, it only fixes the rivet by deforming the extrusion cylinder. After the connection, the rivet and the surface of the riveted joint are prone to sliding, affecting the firmness of the riveting. Therefore, an anti-falling rivet is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides an anti-dropping rivet, which aims to improve the problem in the prior art that the rivet is prone to slipping after installation, thereby affecting the firmness of the riveting.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an anti-dropping rivet, comprising a rivet rod, the end of the rivet rod is fixedly connected to a lap rod, the other end of the lap rod is detachably connected to a connecting rod, the other end of the connecting rod is fixedly connected to an inclined platform, the other side of the inclined platform is fixedly connected to an extrusion head, the outer periphery of the rivet rod is slidably connected to a rivet barrel, one side of the rivet barrel is fixedly connected to a fixing cap, a guide groove is provided on the outer side of the extrusion head, the thickness of the end of the rivet barrel is adapted to the curvature of the guide groove, and the outer side of the rivet barrel is fixedly connected to an anti-slip component;

[0007] Through the above technical solution, the installation of the rivet can be completed. At the same time, with the cooperation of the inclined platform and the guide groove, the deformation of the rivet barrel can be guided so that after the rivet barrel is bent, it can form an angle with the workpiece, thereby increasing the riveting effect.

[0008] As a further description of the above technical solution: the anti-slip assembly includes an anti-slip strip 2, the anti-slip strip 2 is fixedly connected to the outside of the rivet barrel, and a plurality of anti-slip strips 1 are fixedly connected to a side of the fixing cap close to the rivet barrel;

[0009] Through the above technical solution, the second anti-slip strip and the first anti-slip strip can squeeze the two sides of the workpiece after riveting is completed, so as to increase the friction between the workpiece and the rivet and improve the riveting effect.

[0010] As a further description of the above technical solution: the outer sides of the anti-slip strip 1 and the anti-slip strip 2 are both provided with a plurality of notches;

[0011] Through the above technical solution, after the notch is opened, the contact area between the anti-slip strip 1 and the anti-slip strip 2 and the workpiece can be reduced, and the pressure can be increased so that the anti-slip strip 2 and the anti-slip strip 1 can be slightly embedded in the workpiece, thereby improving the stability after riveting.

[0012] As a further description of the above technical solution: a notch is provided at one end of the riveting barrel close to the extrusion head;

[0013] Through the above technical solution, the notch can guide the deformation of the rivet barrel, so that the rivet barrel bends toward the fixing cap to change the contact angle with the workpiece.

[0014] As a further description of the above technical solution: a plurality of gripping grooves are provided on the outer periphery of the rivet rod, a threaded rod is fixedly connected to one end of the lap rod, a threaded groove is provided on one end of the connecting rod, and the threaded rod is threadedly connected to the middle of the threaded groove;

[0015] Through the above technical solution, through the mutual cooperation of the threaded rod and the threaded groove, after the riveting is completed, the rivet rod and the connecting rod can be separated, so that the rivet rod can be reused and the use cost is reduced.

[0016] As a further description of the above technical solution: a breaking groove is provided on the outer circumference of the connecting rod;

[0017] The above technical solution is used to facilitate the rivet gun to grab the rivet rod.

[0018] As a further description of the above technical solution: the inner edge of the rivet barrel close to the extrusion head is provided with an oblique angle;

[0019] Through the above technical solution, the bevel angle can cooperate with the inclined platform and the guide groove to guide the bending deformation of the rivet barrel.

[0020] As a further description of the above technical solution: the fixing cap is located at the outer periphery of the lap rod, and the inner diameter of the fixing cap is smaller than the outer diameter of the rivet rod;

[0021] Through the above technical solution, after the rivet rod and the connecting rod are connected, the position of the fixing cap can be restricted to prevent the fixing cap from sliding on the rivet rod.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, by the cooperation between the inclined platform and the guide groove, the deformation of the end portion can be guided when the rivet barrel shrinks and deforms, so that the rivet barrel is close to the workpiece, thereby increasing the riveting strength, and then the anti-slip strip 1 and the anti-slip strip 2 cooperate with each other to reduce the sliding after riveting, thereby ensuring the riveting effect.

[0024] 2. In the utility model, the position of the fixing cap can be limited by the lap rod, and then the lap rod and the connecting rod can be installed and separated by the mutual cooperation of the threaded rod and the threaded groove, so that the rivet rod can be reused, thereby reducing the waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional schematic diagram of an anti-falling rivet proposed by the utility model;

[0026] Figure 2 This is a structural schematic diagram of a fixing cap of an anti-falling rivet proposed by the utility model;

[0027] Figure 3 This is a structural schematic diagram of a connecting rod of an anti-falling rivet proposed by the utility model;

[0028] Figure 4 This is a schematic diagram of the cross-sectional structure of a rivet barrel of an anti-drop-off rivet proposed by the utility model;

[0029] Figure 5 The utility model is a schematic diagram of the cross-sectional structure of an extrusion head of an anti-dropping rivet.

[0030] Legend:

[0031] 1. Rivet rod; 2. Extrusion head; 3. Rivet barrel; 4. Fixing cap; 5. Inclined platform; 6. Guide groove; 7. Anti-slip strip 1; 8. Anti-slip strip 2; 9. Notch; 10. Notch; 11. Grasping groove; 12. Lap rod; 13. Connecting rod; 14. Bevel; 15. Breaking groove; 16. Threaded groove; 17. Threaded rod. DETAILED DESCRIPTION

[0032] 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.

[0033] Reference Figure 1 , Figure 3 and Figure 5 The utility model provides an embodiment: an anti-drop rivet, including a rivet rod 1, the end of the rivet rod 1 is fixedly connected to a lap rod 12, the other end of the lap rod 12 is detachably connected to a connecting rod 13, the other end of the connecting rod 13 is fixedly connected to a ramp 5, the other side of the ramp 5 is fixedly connected to an extrusion head 2, the outer periphery of the rivet rod 1 is slidably connected to a rivet barrel 3, and the end of the rivet barrel 3 close to the extrusion head 2 is provided with a notch 9. A fixing cap 4 is fixedly connected to one side of the rivet barrel 3, a guide groove 6 is provided on the outer side of the extrusion head 2, and the thickness of the end of the rivet barrel 3 is adapted to the curvature of the guide groove 6;

[0034] Specifically, the inclined platform 5 can guide the end of the rivet barrel 3, so that the rivet barrel 3 first moves to fold outward, and then after the rivet barrel 3 contacts the guide groove 6, it will bend along the shape of the guide groove 6, so that the end of the rivet barrel 3 can move toward the fixing cap 4. In this way, the contact surface between the rivet barrel 3 and the workpiece is inclined after deformation, thereby changing the force direction of the end of the rivet barrel 3, thereby improving the strength of the riveting. At the same time, the opening of the notch 9 can guide the bending direction of the rivet barrel 3.

[0035] Reference Figure 1 The outer side of the rivet barrel 3 is fixedly connected with an anti-skid component, and the anti-skid component includes an anti-skid strip 2 8, and the anti-skid strip 2 8 is fixedly connected to the outer side of the rivet barrel 3. A plurality of anti-skid strips 1 7 are fixedly connected to the side of the fixed cap 4 close to the rivet barrel 3, and a plurality of notches 10 are provided on the outer sides of the anti-skid strip 1 7 and the anti-skid strip 2 8;

[0036] Specifically, during riveting, the anti-slip strip 1 7 will contact one side of the workpiece, and the rivet barrel 3 will contact the other side of the workpiece with the anti-slip strip 2 8 after deformation, and during riveting, the anti-slip strip 1 7 and the anti-slip strip 2 8 will fully contact the workpiece to avoid sliding of the rivet after riveting and ensure the riveting effect. After the notch 10 is opened on the outside of the anti-slip strip 1 7 and the anti-slip strip 2 8, the pressure of the anti-slip strip 1 7 and the anti-slip strip 2 8 can be reduced. During riveting, the anti-slip strip 1 7 and the anti-slip strip 2 8 will be slightly inserted into the workpiece to ensure the riveting effect. At the same time, the notch 10 can also allow the anti-slip strip 2 8 to be bent to a certain extent to ensure the riveting effect of the anti-slip strip 2 8 on the workpiece after the rivet barrel 3 is deformed.

[0037] Reference Figure 2-Figure 3 The outer periphery of the rivet rod 1 is provided with a plurality of grasping grooves 11, one end of the lap rod 12 is fixedly connected with a threaded rod 17, one end of the connecting rod 13 is provided with a threaded groove 16, and the threaded rod 17 is threadedly connected to the middle of the threaded groove 16. The outer periphery of the connecting rod 13 is provided with a breaking groove 15;

[0038] Specifically, the grasping groove 11 can facilitate the rivet gun to grasp the rivet rod 1, thereby ensuring the riveting effect. By adding the threaded rod 17 and the threaded groove 16, the lap rod 12 and the connecting rod 13 can be separated, so that the rivet rod 1 can be reused, thereby reducing the cost of use.

[0039] Reference Figure 3-Figure 4 The inner edge of the rivet barrel 3 near the extrusion head 2 is provided with an angled corner 14. By providing the angled corner 14, the rivet barrel 3 can be conveniently contacted with the ramp 5 and the guide groove 6, so that the rivet barrel 3 can be bent and deformed better. The fixing cap 4 is located at the periphery of the lap rod 12, and the inner diameter of the fixing cap 4 is smaller than the outer diameter of the rivet rod 1. When the rivet rod 1 and the new fixing cap 4 are connected, the rivet rod 1 is passed through the middle of the fixing cap 4 and the fixing cap 4 is placed on the upper part of the lap rod 12. Then, by rotating the rivet rod 1, the lap rod 12 and the connecting rod 13 can be connected with the cooperation of the threaded rod 17 and the threaded groove 16, so that it can be used again.

[0040] Working principle: When in use, insert the end of the rivet rod 1 into the rivet gun, then insert one end of the extrusion head 2 into the workpiece to be riveted, and then pull the rivet rod 1 by driving the rivet gun. At this time, the extrusion head 2 approaches the direction of the fixing cap 4 and completes the extrusion of the rivet barrel 3. At this time, the end of the rivet barrel 3 will be flipped outward under the guidance of the ramp 5 and the guide groove 6, and it will be arc-shaped after flipping, so as to change the inclination of the contact surface between the end of the rivet barrel 3 and the workpiece, so as to improve the stability after riveting. At the same time, after the rivet barrel 3 is deformed and bent, the anti-slip strip 2 8 can be driven to deform together. At this time, the anti-slip strip 2 8 will contact one side of the workpiece, and the anti-slip strip 1 7 will contact the other side of the workpiece, so as to increase the friction between the rivet and the workpiece, thereby avoiding the sliding of the workpiece after riveting.

[0041] Secondly, after the riveting is completed, the connecting rod 13 will be disconnected from the position of the breaking groove 15, and then the rivet rod 1 and a part of the connecting rod 13 can be pulled out. At this time, the connecting rod 13 and the lap rod 12 can be separated by the threaded rod 17 and the threaded groove 16. After the new fixing cap 4 is inserted, the rivet rod 1 and the new connecting rod 13 are connected by the threaded rod 17 and the threaded groove 16, so that the rivet rod 1 can be reused, thereby reducing the waste of resources.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-drop rivet, comprising a rivet rod (1), characterized in that: The end of the rivet rod (1) is fixedly connected to a lap rod (12), the other end of the lap rod (12) is detachably connected to a connecting rod (13), the other end of the connecting rod (13) is fixedly connected to an inclined platform (5), the other side of the inclined platform (5) is fixedly connected to an extrusion head (2), the outer periphery of the rivet rod (1) is slidably connected to a rivet barrel (3), one side of the rivet barrel (3) is fixedly connected to a fixing cap (4), a guide groove (6) is provided on the outer side of the extrusion head (2), the thickness of the end of the rivet barrel (3) is adapted to the curvature of the guide groove (6), and an anti-slip component is fixedly connected to the outer side of the rivet barrel (3).

2. The anti-drop rivet according to claim 1, characterized in that: The anti-skid component comprises an anti-skid strip 2 (8), wherein the anti-skid strip 2 (8) is fixedly connected to the outside of the rivet barrel (3), and a plurality of anti-skid strips 1 (7) are fixedly connected to a side of the fixing cap (4) close to the rivet barrel (3).

3. The anti-drop rivet according to claim 2, characterized in that: The outer sides of the anti-slip strip 1 (7) and the anti-slip strip 2 (8) are both provided with a plurality of notches (10).

4. The anti-dropping rivet according to claim 1, characterized in that: A notch (9) is formed on one end of the riveting barrel (3) close to the extrusion head (2).

5. The anti-dropping rivet according to claim 1, characterized in that: The outer circumference of the rivet rod (1) is provided with a plurality of gripping grooves (11); one end of the lap rod (12) is fixedly connected to a threaded rod (17); one end of the connecting rod (13) is provided with a threaded groove (16); and the threaded rod (17) is threadedly connected to the middle portion of the threaded groove (16).

6. The anti-drop rivet according to claim 1, characterized in that: A breaking groove (15) is formed on the outer circumference of the connecting rod (13).

7. The anti-dropping rivet according to claim 1, characterized in that: An inner edge of the rivet barrel (3) close to the extrusion head (2) is provided with an oblique angle (14).

8. The anti-dropping rivet according to claim 1, characterized in that: The fixing cap (4) is located on the outer periphery of the lap rod (12), and the inner diameter of the fixing cap (4) is smaller than the outer diameter of the rivet rod (1).

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