Pressure-sensitive rivet

Abstract

The utility model discloses a pressure-sensitive rivet, which relates to the technical field of rivets and comprises a rivet cap and an elastic rivet rod fixedly arranged on one side of the rivet cap, articles riveted by the rivet are arranged on the outer side of the elastic rivet rod, and a protruding part which protrudes out of two ends of the elastic rivet rod and is matched with the rivet cap to extrude and fix the articles is arranged in the middle of the elastic rivet rod. An elastic reinforcing rib used for deforming along with the protruding part is fixedly arranged in the elastic rivet rod, and anti-retreating mechanisms used for abutting against an object to prevent the rivet from retreating from the object after being pulled are movably arranged in the middles of the two ends of the elastic rivet rod. According to the pressure-sensitive rivet, the elastic reinforcing rib is arranged in the elastic rivet rod of the rivet and can also deform along with deformation of the protruding part of the elastic rivet rod, so that the pressure-sensitive rivet can pass through the through hole, the fastening effect between the pressure-sensitive rivet and an object can be enhanced, and the anti-retreating mechanism and the rivet cap abut against the two sides of the object, so that the anti-retreating effect of the rivet is improved. And the rivet cannot retreat from the object after being pulled, so that the fastening effect on the object is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rivets, in particular to a pressure-sensitive rivet. Background Art

[0002] A rivet is a nail-shaped object with a cap on one end. It connects the parts being riveted together by using its own deformation or interference fit. There are many different types of rivets, and they come in a variety of shapes. Commonly used are round head, flat head, semi-tubular rivets, solid rivets, countersunk rivets, blind rivets, and hollow rivets. These typically connect the parts being riveted by using their own deformation. Generally, rivets smaller than 8 mm are cold-riveted, while those larger are hot-riveted. However, there are exceptions, such as the nameplate on a three-ring lock, which is riveted using the interference fit between the rivet and the lock body.

[0003] The patent with announcement number CN202266554U discloses "a pressure-sensitive rivet, comprising a nail head and a nail body, wherein the middle part of the nail body has a protrusion protruding from both ends of the nail body, and the protrusion is an elastic body that can produce elastic deformation under pressure. The elastic deformation produced by the protrusion when subjected to pressure can enable the nail body to be inserted into or pulled out of the hole, thereby not damaging the nail body, and the pressure-sensitive rivet can be used repeatedly."

[0004] Regarding the above-mentioned related technologies, the inventor believes that they only squeeze and fix the object through the protrusion, and the protrusion is elastic, which makes the fixation between the rivet and the object relatively unstable, and there is room for improvement. Utility Model Content

[0005] The present invention aims to solve the problems in the existing technology and provides a pressure-sensitive rivet. The specific technical solution is as follows:

[0006] A pressure-sensitive rivet comprises a nail cap and an elastic nail rod fixed on one side of the nail cap, an object to be riveted by the rivet is provided on the outside of the elastic nail rod, a protrusion is provided in the middle of the elastic nail rod, which protrudes from both ends of the elastic nail rod and cooperates with the nail cap to squeeze and fix several of the objects, an elastic reinforcement rib is fixed in the elastic nail rod for deforming with the protrusion, and an anti-retraction mechanism is movably provided in the middle of both ends of the elastic nail rod for resisting the object to prevent the rivet from withdrawing from the object after being pulled.

[0007] By adopting the above technical solution and setting up the elastic reinforcement ribs, the elastic reinforcement ribs can also deform along with the deformation of the protruding portion of the elastic nail rod, thereby enhancing the fastening effect between the pressure-sensitive rivet and the object. By the anti-retreat mechanism and the nail cap abutting against both sides of the object, the rivet will not retreat from the object after being pulled, thereby further improving the fastening effect on the object.

[0008] Optionally, a through hole for the elastic nail rod to pass through is fixedly provided in the object, a hollow groove is provided in the elastic nail rod, the elastic reinforcement rib is fixed in the hollow groove of the elastic nail rod, a notch is provided at one end of the elastic nail rod away from the nail cap, and one end of the elastic reinforcement rib is located in the notch.

[0009] By adopting the above technical solution, the provision of the hollow groove and the notch can reduce the weight of the rivet.

[0010] Optionally, the anti-retreat mechanism includes two groups of anti-retreat rods movably arranged in the middle of both ends of the elastic nail rod and cooperating to abut against one side of the object, and a spring sheet fixedly arranged between the two groups of anti-retreat rods and located inside the hollow groove. Two groups of limiting holes located between the object and the protrusion are opened in the middle of both ends of the elastic nail rod. The anti-retreat rod is slidably connected in the limiting holes of the elastic nail rod. One side of the anti-retreat rod is provided with a guiding inclined surface for guiding the anti-retreat rod during riveting so that the anti-retreat rod can be retracted into the elastic nail rod.

[0011] By adopting the above technical solution and setting the guiding slope, the anti-backoff rod can be guided when the rivet is riveted into the object, so that the anti-backoff rod can be retracted into the elastic nail rod, thereby not hindering the riveting process of the rivet.

[0012] Optionally, one end of the anti-retreat rod is fixedly provided with a limiting block that cooperates and abuts against the hollow groove of the elastic nail rod.

[0013] By adopting the above technical solution, the limit block can limit the anti-retraction rod, thereby preventing the anti-retraction mechanism from shaking randomly in the rivet during transportation and generating noise.

[0014] In summary, the present invention has at least one of the following beneficial effects:

[0015] 1. By arranging elastic reinforcing ribs in the elastic nail rod of the rivet, the elastic reinforcing ribs can also deform along with the deformation of the protruding portion of the elastic nail rod, so that they can pass through the through hole and enhance the fastening effect between the pressure-sensitive rivet and the object. Through the anti-retraction mechanism and the nail cap abutting against both sides of the object, the rivet will not retreat from the object after being pulled, further improving the fastening effect of the object.

[0016] 2. By setting the guiding slope, the anti-backward rod can be guided when the rivet is riveted into the object, so that the anti-backward rod can be retracted into the elastic nail rod, thereby not hindering the riveting process of the rivet. The limit block can limit the anti-backward rod to avoid the anti-backward mechanism from shaking randomly in the rivet during transportation and generating noise, which is convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the internal structure of the utility model;

[0018] Figure 2This is a front view of the nail cap and elastic nail rod of the utility model;

[0019] Figure 3 This utility model Figure 2 Enlarged view of the middle anti-recoil rod and shrapnel structure.

[0020] Explanation of the accompanying reference numerals: 1. Nail cap; 11. Elastic nail rod; 12. Protrusion; 13. Hollow groove; 14. Elastic reinforcing rib; 15. Notch; 16. Limiting hole; 2. Object; 21. Through hole; 3. Anti-retraction rod; 31. Spring piece; 32. Guide slope; 33. Limiting block. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-3 The utility model is described in further detail.

[0022] Reference Figure 1-3 The embodiment of the present utility model discloses a pressure-sensitive rivet, comprising a rivet cap 1 and an elastic rivet rod 11. The rivet cap 1 is the part of the rivet that is subjected to force during riveting.

[0023] Reference Figure 1 An object 2 to be riveted is provided on the outside of the elastic nail rod 11, and a through hole 21 for the elastic nail rod 11 to pass through is fixed inside the object 2. The number of objects 2 is two or more, which facilitates riveting multiple objects 2 with rivets.

[0024] Reference Figure 1-2 The middle part of the elastic nail rod 11 is provided with a protrusion 12 that protrudes from both ends of the elastic nail rod 11 and cooperates with the nail cap 1 to squeeze and fix several objects 2. The protrusion 12 of the elastic nail rod 11 is an elastic body that can produce elastic deformation under pressure. One side of the nail cap 1 will cooperate and abut against the outside of the object 2, so that the nail cap 1 can cooperate with the extrusion of the protrusion 12 to preliminarily fix the object 2.

[0025] Reference Figure 1-2 An elastic reinforcement rib 14 is fixed inside the elastic nail rod 11 and is used to deform along with the protrusion 12. A hollow groove 13 is opened inside the elastic nail rod 11. The elastic reinforcement rib 14 is fixed in the hollow groove 13 of the elastic nail rod 11. The elastic reinforcement rib 14 can also deform along with the deformation of the protrusion 12 of the elastic nail rod 11, so that it can pass through the through hole 21 of the object 2 and can enhance the fastening effect between the pressure-sensitive rivet and the object 2.

[0026] Reference Figure 1-2 A notch 15 is provided at one end of the elastic nail rod 11 away from the nail cap 1, and one end of the elastic reinforcement rib 14 is located in the notch 15. The setting of the notch 15 can minimize the weight of the rivet, and the elastic reinforcement rib 14 can fill the notch 15 and improve the connection strength between the elastic nail rod 11 and the elastic reinforcement rib 14.

[0027] Reference Figure 1-3 The middle part of both ends of the elastic nail rod 11 is movably provided with an anti-retreat mechanism for resisting the object 2 to prevent the rivet from withdrawing from the object 2 after being pulled. The anti-retreat mechanism includes two groups of anti-retreat rods 3 movably provided in the middle part of both ends of the elastic nail rod 11 and cooperating to abut against one side of the object 2, and a spring piece 31 fixedly provided between the two groups of anti-retreat rods 3 and located inside the hollow groove 13. Two groups of limiting holes 16 located between the object 2 and the protrusion 12 are provided in the middle part of both ends of the elastic nail rod 11. The anti-retreat rod 3 is slidably connected to the limiting holes 16 of the elastic nail rod 11. The elastic nail rod 11 can limit the anti-retreat rod 3 through the limiting holes 16, so that the anti-retreat rod 3 can only move laterally. The spring piece 31 will push the two groups of anti-retreat rods 3 to the outside of the elastic nail rod 11 under the elastic force.

[0028] The anti-backoff rod 3 cooperates with the nail cap 1 to resist the clamped object 2, thereby further tightening the object 2. When the rivet is pulled, the anti-backoff rod 3 blocks the rivet from falling out of the object 2, thereby improving the stability of the rivet after fixation.

[0029] Reference Figure 1-3 One side of the anti-backward rod 3 is provided with a guiding inclined surface 32 for guiding the anti-backward rod 3 during riveting so that the anti-backward rod 3 can be retracted into the elastic nail rod 11.

[0030] When it is necessary to fasten the object 2, the rivet is pressed into the pre-designed through hole 21. The protrusion 12 and the elastic reinforcement rib 14 of the elastic nail rod 11 will be elastically deformed due to the extrusion pressure around the through hole 21, so that the size of the protrusion 12 and the elastic reinforcement rib 14 will become smaller, so that the protrusion 12 and the elastic reinforcement rib 14 can pass through the through hole 21. At this time, the anti-retraction rod 3 exposed at both ends of the elastic nail rod 11 will also be subject to the extrusion pressure around the through hole 21, and will retract into the elastic nail rod 11 under the guidance of the guide slope 32. After passing through the through hole 21, it will pop out from both ends of the elastic nail rod 11 again due to the elastic force of the spring piece 31 to press against the object 2 and tighten the rivet.

[0031] Reference Figure 1-3 One end of the anti-backward rod 3 is fixed with a limit block 33 that cooperates with and abuts against the hollow groove 13 of the elastic nail rod 11. The two sets of limit blocks 33 abutting against the elastic nail rod 11 can limit the anti-backward rod 3 to prevent the anti-backward mechanism such as the anti-backward rod 3 from shaking freely in the rivet during transportation and generating noise.

[0032] The implementation principle of a pressure-sensitive rivet in an embodiment of the present utility model is:

[0033] When the object 2 needs to be fastened, the rivet is pressed into the pre-designed through-hole 21. The protrusion 12 and the elastic reinforcement rib 14 of the elastic nail rod 11 will be elastically deformed due to the squeezing pressure around the through-hole 21, so that the size of the protrusion 12 and the elastic reinforcement rib 14 becomes smaller, so that the protrusion 12 and the elastic reinforcement rib 14 can pass through the through-hole 21.

[0034] At this time, the anti-retraction rods 3 exposed at both ends of the elastic nail rod 11 will also be squeezed by the pressure around the through hole 21, and will be retracted into the elastic nail rod 11 under the guidance of the guide slope 32. After passing through the through hole 21, they will pop out from both ends of the elastic nail rod 11 again due to the elastic force of the spring piece 31 to press against the object 2, and cooperate with the nail cap 1 to abut the other side of the object 2 to fasten the object 2 and cooperate with the protrusion 12 and the elastic reinforcement rib 14 to elastically squeeze the object 2 to rivet the object 2.

[0035] When the rivet needs to be pulled out, the user can use a tool to apply pressure to the two ends of the elastic nail rod 11, causing the protrusion 12 and the elastic reinforcement rib 14 to be elastically deformed and reduced in size, and the anti-retraction rod 3 to retract into the elastic nail rod 11. Then the user can pull the nail cap 1 to free the elastic nail rod 11 and other components from the constraints of the through hole 21 and pull them out from the object 2. After the rivet is pulled out, the protrusion 12 and the elastic reinforcement rib 14 will return to their original shape, and the anti-retraction rod 3 will pop out from the two ends of the elastic nail rod 11 again under the elastic force of the spring piece 31 to be exposed, so that the pressure-sensitive rivet can be reused.

[0036] The above description is merely 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 will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A pressure-sensitive rivet comprising a rivet cap (1) and an elastic rivet rod (11) fixed to one side of the rivet cap (1), wherein an object (2) to be riveted by the rivet is provided on the outer side of the elastic rivet rod (11), characterized in that: The middle portion of the elastic nail rod (11) is provided with protrusions (12) protruding from both ends of the elastic nail rod (11) and cooperating with the nail cap (1) to squeeze and fix the plurality of objects (2). The elastic nail rod (11) is fixedly provided with elastic reinforcing ribs (14) for deforming along with the protrusions (12). The middle portions of both ends of the elastic nail rod (11) are movably provided with anti-retraction mechanisms for abutting against the objects (2) to prevent the rivet from withdrawing from the object (2) after being pulled.

2. The pressure-sensitive rivet according to claim 1, characterized in that: A through hole (21) for the elastic nail rod (11) to pass through is fixedly provided in the object (2).

3. The pressure-sensitive rivet according to claim 1, characterized in that: A hollow groove (13) is provided in the elastic nail rod (11), and the elastic reinforcing rib (14) is fixed in the hollow groove (13) of the elastic nail rod (11).

4. The pressure-sensitive rivet according to claim 3, characterized in that: A notch (15) is formed at one end of the elastic nail rod (11) facing away from the nail cap (1), and one end of the elastic reinforcing rib (14) is located in the notch (15).

5. The pressure-sensitive rivet according to claim 4, characterized in that: The anti-recoil mechanism comprises two sets of anti-recoil rods (3) movably arranged in the middle of both ends of the elastic nail rod (11) and cooperating to abut against one side of the object (2), and a spring piece (31) fixedly arranged between the two sets of anti-recoil rods (3) and located inside the hollow groove (13).

6. The pressure-sensitive rivet according to claim 5, characterized in that: Two groups of limiting holes (16) located between the object (2) and the protruding portion (12) are provided in the middle of both ends of the elastic nail rod (11), and the anti-retraction rod (3) is slidably connected in the limiting holes (16) of the elastic nail rod (11).

7. The pressure-sensitive rivet according to claim 6, characterized in that: One side of the anti-retraction rod (3) is provided with a guide inclined surface (32) for guiding the anti-retraction rod (3) during riveting so that the anti-retraction rod (3) can be retracted into the elastic nail rod (11).

8. The pressure-sensitive rivet according to claim 7, characterized in that: One end of the anti-retraction rod (3) is fixedly provided with a limiting block (33) that cooperates and abuts against the hollow groove (13) of the elastic nail rod (11).

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