Blind rivet convenient to disassemble and assemble

Abstract

The utility model belongs to the technical field of rivets, and particularly relates to a self-plugging rivet convenient to disassemble and assemble, which comprises a rivet core and a disassembling and assembling mechanism, an expansion ball with the diameter larger than that of the rivet core is fixed at the end of the rivet core, an expansion sleeve is sleeved at one end, close to the expansion ball, of the rivet core, and the expansion sleeve is in a hollow tube shape. The outer diameter of the expansion ball is larger than the inner diameter of the expansion sleeve, a nail cap is detachably arranged on the outer side wall of the expansion sleeve, the nail cap is in a hollow disc shape, and the nail cap is in clearance fit with the expansion sleeve. The multiple dismounting and mounting mechanisms are arranged around the nail cap at equal intervals in the circumferential direction of the nail cap and used for controlling the nail cap and the expansion sleeve to be mounted or dismounted. According to the utility model, through the arranged dismounting mechanism, when the rivet needs to be dismounted in the later period, the rivet cap can be controlled to be separated from the expansion sleeve, so that the problem that the existing rivet is difficult to dismount after being mounted is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to rivet technical field, concretely is a kind of core-pulling rivet of easy dismounting. BACKGROUND

[0002] After the opening type core-pulling rivet is riveted, the rivet body is inflated and bulges, so as to cooperate with the riveting effect of rivet end cap, the opening type core-pulling rivet has two kinds, one is flat round head opening type core-pulling rivet, and the other is countersunk head opening type core-pulling rivet, among them, flat round head opening type core-pulling rivet is most widely used, countersunk head opening type core-pulling rivet is suitable for the riveting occasion that surface needs to be smooth.

[0003] Traditional core-pulling rivet, its after installation rivet cap and the expansion sleeve after inflation are closely fixed, difficult to dismount in later period, need to damage rivet or workpiece, it is very difficult when dismounting, thus needs to develop a kind of core-pulling rivet of easy dismounting. SUMMARY

[0004] This section aims to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name. Such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] To solve the above technical problems, according to one aspect of the utility model, the utility model provides the following technical scheme:

[0006] A kind of core-pulling rivet of easy dismounting, it includes nail core and dismounting mechanism:

[0007] The end of the nail core is fixed with expansion ball with greater diameter than the nail core, the end of the nail core close to expansion ball is equipped with expansion sleeve, the expansion sleeve is hollow tubular, and the outer diameter of the expansion ball is greater than the inner diameter of the expansion sleeve, the outer side wall of the expansion sleeve is detachably provided with rivet cap, the rivet cap is hollow disc, and the rivet cap and expansion sleeve are gap fitted.

[0008] A plurality of the dismounting mechanism is arranged around the rivet cap along the circumferential direction of the rivet cap at equal intervals, and the dismounting mechanism is used to control the installation / dismounting of the rivet cap and the expansion sleeve.

[0009] As a preferred scheme of the core-pulling rivet of easy dismounting of the utility model, wherein: the outer side of the shank of the nail core is provided with a notch around the circumferential direction of the nail core, and the notch is located at the inner side of the expansion sleeve.

[0010] As a preferred scheme of the utility model discloses a kind of convenient disassembly's blind rivet, wherein: the stem position of the nail core away from expansion ball is provided with anti-skid line, the side of the nail cap close to expansion ball is provided with sealing pad.

[0011] As a preferred scheme of the utility model discloses a kind of convenient disassembly's blind rivet, wherein: the expansion sleeve is close to the expansion ball one end and is opened around with expansion mouth, and the expansion mouth is opened along the length direction of expansion sleeve.

[0012] As a preferred scheme of the utility model discloses a kind of convenient disassembly's blind rivet, wherein: the dismounting mechanism includes the first screw hole opened on the side wall of nail cap, the first screw hole is opened along the radial direction of nail cap, the second screw hole that is aligned with the first screw hole is opened on the outer side wall of expansion sleeve, and the screw is jointly screwed in the first screw hole and the second screw hole, the end of the screw is not contacted with the outer side of nail core, the end of the screw away from the center of nail cap is fixedly provided with knob, the diameter of the knob is less than the thickness of nail cap, a circle of anti-skid line is arranged on the outer side of the knob, and the inner hexagonal slot hole is opened in the side wall of the knob.

[0013] As a preferred scheme of the utility model discloses a kind of convenient disassembly's blind rivet, wherein: the dismounting mechanism includes the sliding slot opened in the inner cavity of nail cap, the sliding slot is opened along the radial direction of nail cap, the plug rod is slidably penetrated and arranged on the inner side of nail cap, the plug rod is slid along the radial direction of nail cap, the insertion hole for the plug rod is inserted is opened on the outer side wall of expansion sleeve, and the end of the plug rod is not contacted with the outer side of nail core.

[0014] As a preferred scheme of the utility model discloses a kind of convenient disassembly's blind rivet, wherein: the connecting block is fixedly arranged in the middle part of the stem of plug rod, the spring is fixedly arranged between the side of the connecting block away from the center of nail cap and the inner side wall of sliding slot, the spring is telescopic along the radial direction of nail cap, and the spring pushes the connecting block, so that the plug rod is inserted into the hole of insertion hole.

[0015] As a preferred scheme of the utility model discloses a kind of convenient disassembly's blind rivet, wherein: the stem of plug rod and the ring of spring are arranged with clearance, and the end of plug rod on the outer side of nail cap is protrusively provided with pull ring, and the diameter of pull ring is less than the thickness of nail cap.

[0016] The utility model discloses the beneficial effect is: through being arranged dismounting mechanism, when needing to disassemble rivet in later period, nail cap and expansion sleeve can be controlled to separate, to solve the problem that existing rivet is difficult to disassemble after installation. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the present application will be described in detail below with reference to the drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor. Among them:

[0018] Figure 1 The structure diagram of the first embodiment of the dismounting mechanism of the present application;

[0019] Figure 2 The structure diagram of the present application Figure 1 after the screw is dismounted;

[0020] Figure 3 The structure diagram of the present application Figure 1 of the expansion sleeve;

[0021] Figure 4 The structure diagram of the notch and other components of the present application;

[0022] Figure 5 The structure diagram of the cross-section inside of the present application Figure 1 of the nail cap;

[0023] Figure 6 The structure diagram of the second embodiment of the dismounting mechanism of the present application;

[0024] Figure 7 The structure diagram of the present application Figure 6 after the plug rod is pulled out;

[0025] Figure 8 The structure diagram of the present application Figure 6 of the expansion sleeve;

[0026] Figure 9 The structure diagram of the present application Figure 1 of the cross-section inside of the nail cap;

[0027] Figure 10 The structure diagram of the present application Figure 9 after the plug rod is pulled;

[0028] In the figure: nail core 100, expansion ball 101, expansion sleeve 102, nail cap 103, notch 104, anti-skid line 105, sealing gasket 106, expansion opening 107, dismounting mechanism 200, first screw hole 201, second screw hole 202, screw 203, knob 204, sliding groove 205, plug rod 206, plug hole 207, connecting block 208, spring 209, pull ring 210. DETAILED DESCRIPTION

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0033] Please see Figures 1-10 The diagram shows a structural schematic of an embodiment of the present invention, a conveniently assembled and disassembled blind rivet. Please refer to [link / reference]. Figures 1-10 This paper provides a detailed introduction to a type of pop rivet that is easy to assemble and disassemble.

[0034] A convenient blind rivet includes a rivet core 100 and a disassembly / assembly mechanism 200.

[0035] The end of the nail core 100 is fixed with an expansion ball 101 with a diameter larger than that of the nail core 100. An expansion sleeve 102 is sleeved on the end of the nail core 100 near the expansion ball 101. The expansion sleeve 102 is hollow and tubular, and the outer diameter of the expansion ball 101 is larger than the inner diameter of the expansion sleeve 102. A nail head 103 is detachably provided on the outer wall of the expansion sleeve 102. The nail head 103 is hollow and disc-shaped, and the nail head 103 and the expansion sleeve 102 are clearance-fitted. The clearance-fitted nail head 103 and the expansion sleeve 102 facilitate the later removal of the nail head 103.

[0036] Multiple disassembly and assembly mechanisms 200 are arranged at equal intervals around the nail head 103 along the circumferential direction of the nail head 103, and the disassembly and assembly mechanisms 200 are used to control the installation / removal of the nail head 103 and the expansion sleeve 102.

[0037] Furthermore, the outer side of the shank of the rivet 100 is provided with a notch 104 around the circumference of the rivet 100. The notch 104 is located inside the expansion sleeve 102. When the rivet 100 is pulled by force to expand the ball 101, the ball 101 compresses the expansion sleeve 102, causing the expansion sleeve 102 to expand and deform. This places the two sides of the component to be fixed between the deformed expansion sleeve 102 and the rivet head 103, respectively. When the rivet 100 continues to be subjected to force, it can be broken at the notch 104, thereby completing the installation of the rivet.

[0038] The nail core 100 is provided with anti-slip texture 105 at the position of the shaft away from the expansion ball 101. The anti-slip texture 105 makes it easy for the rivet gun to fix the nail core 100. The nail head 103 is provided with a sealing gasket 106 on the side close to the expansion ball 101. The sealing gasket 106 helps to seal the rivet installation point.

[0039] The expansion sleeve 102 has an expansion opening 107 around one end near the expansion ball 101. The expansion opening 107 is opened along the length of the expansion sleeve 102. The expansion ball 101 can easily squeeze the expansion sleeve 102 to make it expand and deform. It also reduces the expansion of the expansion sleeve 102 near the nail head 103. In addition, the nail head 103 and the expansion sleeve 102 are fitted with a gap, which makes it easy to remove the nail head 103 later.

[0040] Please refer to it again. Figures 1 to 5 This is a first embodiment of the disassembly and assembly mechanism 200. In this embodiment, the disassembly and assembly mechanism 200 includes a first screw hole 201 opened on the side wall of the nail head 103. The first screw hole 201 is opened along the radial direction of the nail head 103. The outer side wall of the expansion sleeve 102 is opened with a second screw hole 202 aligned with the first screw hole 201. A screw 203 is screwed into the aligned first screw hole 201 and second screw hole 202. The screw 203 is made of a high-strength and hard material to ensure its firmness. The end of the screw 203 does not contact the outside of the nail core 100. A knob 204 is fixedly protruding from the end of the screw 203 away from the center of the nail head 103. The diameter of the knob 204 is smaller than the thickness of the nail head 103. A ring of anti-slip texture is provided on the outer side of the knob 204. An internal hexagonal slot is opened on the side wall of the knob 204.

[0041] In this embodiment, when the user needs to remove the nail head 103, the anti-slip texture on the outside of the knob 204 can be used to rotate the screw 203. If the force point is small and it is not convenient to turn the screw 203, the user can also use an appropriate hex wrench to insert into the hex socket and remove the screw 203, so that the screw 203 is separated from the second screw hole 202, thereby removing the nail head 103 from the expansion sleeve 102 and completing the removal of the rivet.

[0042] Please refer to it again. Figures 6 to 10 This is a second embodiment of the disassembly and assembly mechanism 200. In this embodiment, the disassembly and assembly mechanism 200 includes a groove 205 that opens into the inner cavity of the nail head 103. The groove 205 is opened along the radial direction of the nail head 103. An insertion rod 206 is slidably provided through the inner side of the nail head 103. The insertion rod 206 is made of a high-strength and hard material to ensure its firmness. The insertion rod 206 slides along the radial direction of the nail head 103. The outer wall of the expansion sleeve 102 has an insertion hole 207 for the insertion rod 206 to fit and be inserted. The end of the insertion rod 206 does not contact the outer side of the nail core 100.

[0043] A connecting block 208 is fixedly installed in the middle of the rod body of the insertion rod 206. A spring 209 is fixedly installed between the side of the connecting block 208 away from the center of the nail head 103 and the inner sidewall of the slide groove 205. The spring 209 extends and retracts along the radial direction of the nail head 103, and pushes the connecting block 208 so that the insertion rod 206 is inserted into the hole of the insertion hole 207.

[0044] The rod body of the insertion rod 206 is spaced apart from the inner coil of the spring 209. A pull ring 210 protrudes from one end of the insertion rod 206 outside the nail head 103. The diameter of the pull ring 210 is smaller than the thickness of the nail head 103.

[0045] In this embodiment, when the user needs to remove the nail head 103, the plug rod 206 can be pulled along the radius of the nail head 103 by the pull ring 210, so that the spring 209 is compressed and the plug rod 206 is pulled out of the insertion hole 207, and then the nail head 103 can be removed from the expansion sleeve 102 to complete the removal of the rivet; in this embodiment, two people can work together to complete the pulling operation of multiple plug rods 206.

[0046] The two disassembly and assembly mechanisms 200 described above allow users to choose the appropriate processing method based on their specific needs.

[0047] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A conveniently detachable blind rivet, comprising a rivet core (100) and a detachment / assembly mechanism (200), characterized in that: The end of the nail core (100) is fixed with an expansion ball (101) with a diameter larger than that of the nail core (100). An expansion sleeve (102) is fitted on one end of the nail core (100) near the expansion ball (101). The expansion sleeve (102) is hollow tubular, and the outer diameter of the expansion ball (101) is larger than the inner diameter of the expansion sleeve (102). A nail head (103) is detachably provided on the outer wall of the expansion sleeve (102). The nail head (103) is hollow disc-shaped, and the nail head (103) is clearance-fitted with the expansion sleeve (102). Multiple disassembly mechanisms (200) are arranged at equal intervals around the nail head (103) along the circumferential direction of the nail head (103), and the disassembly mechanisms (200) are used to control the installation / removal of the nail head (103) and the expansion sleeve (102).

2. The easy-to-assemble and disassemble blind rivet according to claim 1, characterized in that: The outer side of the rod of the nail core (100) is provided with a notch (104) around the circumference of the nail core (100), and the notch (104) is located inside the expansion sleeve (102).

3. The easy-to-assemble and disassemble blind rivet according to claim 1, characterized in that: The nail core (100) has anti-slip texture (105) on the shaft position away from the expansion ball (101), and the nail head (103) has a sealing gasket (106) on the side close to the expansion ball (101).

4. The easy-to-assemble and disassemble blind rivet according to claim 1, characterized in that: The expansion sleeve (102) has an expansion port (107) around one end near the expansion ball (101), and the expansion port (107) is opened along the length direction of the expansion sleeve (102).

5. The easy-to-assemble and disassemble blind rivet according to claim 1, characterized in that: The disassembly and assembly mechanism (200) includes a first screw hole (201) on the side wall of the nail head (103), the first screw hole (201) is opened along the radial direction of the nail head (103), the outer side wall of the expansion sleeve (102) is opened with a second screw hole (202) aligned with the first screw hole (201), a screw (203) is screwed into the aligned first screw hole (201) and second screw hole (202), the end of the screw (203) does not contact the outside of the nail core (100), a knob (204) is fixedly protruding from the end of the screw (203) away from the center of the nail head (103), the diameter of the knob (204) is smaller than the thickness of the nail head (103), a ring of anti-slip texture is provided on the outside of the knob (204), and an internal hexagonal slot is opened on the side wall of the knob (204).

6. The easy-to-assemble and disassemble blind rivet according to claim 1, characterized in that: The disassembly and assembly mechanism (200) includes a groove (205) opening in the inner cavity of the nail head (103). The groove (205) is opened along the radial direction of the nail head (103). A rod (206) is slidably provided through the inner side of the nail head (103). The rod (206) slides along the radial direction of the nail head (103). The outer wall of the expansion sleeve (102) has an insertion hole (207) for the rod (206) to be inserted. The end of the rod (206) does not contact the outer side of the nail core (100).

7. A conveniently assembled and disassembled blind rivet according to claim 6, characterized in that: A connecting block (208) is fixedly installed in the middle of the rod (206). A spring (209) is fixedly installed between the side of the connecting block (208) away from the center of the nail head (103) and the inner sidewall of the slide groove (205). The spring (209) extends and retracts along the radial direction of the nail head (103), and the spring (209) pushes the connecting block (208) so that the rod (206) is inserted into the hole of the insertion hole (207).

8. A conveniently assembled and disassembled blind rivet according to claim 7, characterized in that: The rod (206) is positioned with a gap between its body and the inner coil of the spring (209). A pull ring (210) protrudes from one end of the rod (206) outside the nail head (103), and the diameter of the pull ring (210) is smaller than the thickness of the nail head (103).

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