Rivet removal tool

Abstract

A rivet removing tool comprises a pin shaft, two handles, a chuck mechanism and a sleeve. The two handles are pivoted to the top end of the pin shaft. And the chuck mechanism is connected with the pin shaft. The sleeve is sleeved outside the chuck mechanism in a sliding mode, and the tail ends of the two handles abut against the sleeve. According to the rivet removing tool, the head of the rivet to be removed is clamped in an abutting mode through the clamping groove, so that the rivet is clamped and compressed, and the rivet is removed from the inner annular groove of the mounting part.

Description

TECHNICAL FIELD

[0001] The present invention relates to a rivet removal tool. BACKGROUND

[0002] Currently, the connection between printed circuit boards and housings is mainly achieved by screw fastening. The amount of screws used is large, and it takes a long time to tighten the screws for assembly. The effective thread depth of the threaded hole usually needs to be at least 1.5 times the diameter of the screw. When assembling in a narrow area, the screw column needs to be lengthened in the opposite direction to ensure sufficient effective thread length, thus occupying the space of the housing. SUMMARY

[0003] The present invention provides a rivet structure to solve the problems of the prior art, and a rivet removal tool to remove the rivet structure of the present invention.

[0004] According to an embodiment of the present invention, a rivet removal tool includes a pin shaft, two handles, a chuck mechanism, and a sleeve. The two handles are pivotally connected to the top end of the pin shaft. The chuck mechanism is connected to the pin shaft. The sleeve is slidingly connected to the outside of the chuck mechanism, wherein the ends of the two handles abut the sleeve.

[0005] According to another embodiment of the present invention, the ends of the two handles are both U-shaped structures.

[0006] According to another embodiment of the present invention, the chuck mechanism includes a plurality of clamping pieces, and the clamping pieces are arranged along a circular circumference.

[0007] According to another embodiment of the present invention, each clamping piece has an outwardly expanding slope.

[0008] According to another embodiment of the present invention, each clamping piece has a clamping groove.

[0009] According to another embodiment of the present invention, the outwardly expanding slope and the clamping groove are located on two opposite sides of each clamping piece.

[0010] According to another embodiment of the present invention, the sleeve has an inner inclined wall corresponding to the outwardly expanding slope.

[0011] According to another embodiment of the present invention, the sleeve is slidingly connected between the outwardly expanding slope and the top end of the pin shaft.

[0012] According to another embodiment of the present invention, the included angle of the two handles is less than 180 degrees.

[0013] According to another embodiment of the present invention, the clamping groove of each clamping piece abuts a rivet to be removed.

[0014] In summary, the present application provides a riveting structure of a substrate and a shell, which can still achieve connection when the installation height is limited, and only needs to be pressed once by a pressing head during assembly to achieve assembly, so that the assembly is simple and fast, the rivet structure is simple and can be formed by one-time stamping, and the connecting piece is lower in price. When the rivet is removed, a specially designed rivet removal tool is used to abut and clamp the head of the rivet to be removed through the clamping groove, so as to clamp and compress the rivet, and then the rivet is removed from the inner annular groove of the mounting portion.

[0015] The above description will be described in detail in the embodiments, and the technical solutions of the present application will be further explained. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to make the above and other purposes, features, advantages and embodiments of the present application more obvious and easy to understand, the following is a description of the accompanying drawings:

[0017] Figure 1 is a perspective view of the riveting structure of the present application;

[0018] Figure 2 is a sectional view of the riveting structure of the present application in a first state;

[0019] Figure 3 is a sectional view of the riveting structure of the present application in a second state;

[0020] Figure 4 is a sectional view of the riveting structure of the present application after the pressing head is removed; Figure 3

[0021] Figure 5 is a side view of the rivet removal tool of the present application;

[0022] Figure 6 is a partially enlarged sectional view of the rivet removal tool of the present application; and

[0023] Figure 7 is a partially enlarged perspective view of the rivet removal tool of the present application. Figure 5

[0024] Among them, the reference signs are as follows:

[0025] 100: riveting structure

[0026] 102: mounting portion

[0027] 102a: inner annular groove

[0028] 104: rivet

[0029] 104a: head

[0030] 104b: rod-shaped portion ​​

[0031] 104c: hollow slot

[0032] 104d: opening

[0033] 106: pressure head

[0034] 106a: bottom

[0035] 110: base plate

[0036] 110a: through hole

[0037] 200: rivet removal tool

[0038] 201: handle

[0039] 203: handle

[0040] 204: rotating shaft

[0041] 201a: tip

[0042] 203a: tip

[0043] 205: pin shaft

[0044] 205b: top end

[0045] 205a: bottom end

[0046] 206: sleeve

[0047] 206a: inner inclined wall

[0048] 206b: top end

[0049] 207: chuck mechanism

[0050] 208: clamp

[0051] 208c: interval

[0052] 208a: outer expanded inclined surface

[0053] 208b: clamping groove

[0054] R1: outer diameter

[0055] R1': expanded outer diameter

[0056] R2: inner diameter

[0057] R3: outer diameter

[0058] R5: original inner diameter

[0059] R6: expanded inner diameter

[0060] D1: depth

[0061] A1: included angle

[0062] r1: distance

[0063] r2: distance DETAILED DESCRIPTION

[0064] For the purpose of making the description of the present application more complete and complete, reference can be made to the accompanying drawings and various embodiments described below, in which the same numbers represent the same or similar elements. On the other hand, well-known elements and steps are not described in the embodiments to avoid unnecessary limitations on the present application.

[0065] In the embodiments and claims, unless the context specifically provides otherwise, "a" and "the" can refer to one or more.

[0066] Please refer to Figure 1 , Figure 2 , Figure 1 is a perspective view illustrating a riveting structure 100 of the present application, Figure 2 is a cross-sectional view illustrating the riveting structure 100 of the present application in a first state. The riveting structure 100 is used to fix a substrate 110 to a case. The riveting structure 100 includes a mounting portion 102 and a rivet 104. The mounting portion 102 is provided on the case or is a part of the case. The mounting portion 102 has an inner annular groove 102a. The rivet 104 has a head portion 104a, a rod-shaped portion 104b, and a hollow groove 104c. The hollow groove 104c extends within the head portion 104a and the rod-shaped portion 104b and has an opening 104d in the head portion 104a. The rod-shaped portion 104b of the rivet 104 is used to be inserted into the inner annular groove 102a of the mounting portion 102, and the outer diameter R1 of the rod-shaped portion 104b is smaller than the inner diameter R2 of the inner annular groove 102a, so as to facilitate the insertion of the rod-shaped portion 104b into the inner annular groove 102a. In some embodiments of the present application, the substrate 110 can be various forms of circuit boards, such as a printed circuit board.

[0067] When the riveting structure 100 is used to fix the substrate 110 to the case, the rod-shaped portion 104b of the rivet 104 passes through the through hole 110a of the substrate 110 and is inserted into the inner annular groove 102a of the mounting portion 102 on the case, so that the head portion 104a of the rivet 104 abuts against the upper surface of the substrate 110. In some embodiments of the present application, the outer diameter R3 of the head portion 104a of the rivet 104 is greater than the outer diameter R1 of the rod-shaped portion 104b and is also greater than the inner diameter of the through hole 110a of the substrate 110, so as to facilitate the rivet 104 to fix the substrate 110. When the substrate 110 is located between the head portion 104a of the rivet 104 and the mounting portion 102 on the case, the substrate 110 is limited between the head portion 104a of the rivet 104 and the mounting portion 102.

[0068] In some embodiments of the present application, the depth D1 of the inner annular groove 102a of the mounting portion 102 is less than 1.5 times the outer diameter R1 of the rod portion 104b of the rivet 104, so that the rivet 104 has a small required length, which is beneficial for assembly in a narrow area.

[0069] In some embodiments of the present application, the hollow groove 104c of the rivet 104 is used to accommodate a deformable plunger 106, which is used to apply an expansion force to the hollow groove 104c. When the plunger 106 has not applied an expansion force to the hollow groove 104c, the riveting structure 100 is in the first state, the rod portion 104b of the rivet 104 maintains the uniform outer diameter R1, and the rivet 104 has not been positioned on the mounting portion 102 to secure the substrate 110 to the housing.

[0070] Please refer to Figure 3 , Figure 4 , Figure 3 to illustrate a cross-sectional view of the riveting structure 100 of the present application in the second state, Figure 4 to illustrate Figure 3 a cross-sectional view of the riveting structure 100 of the present application after the plunger is removed. When the riveting structure 100 is desired to change from the first state to the second state, an expansion force is applied to the hollow groove 104c by the bottom 106a of the deformable plunger 106, so that the hollow groove 104c of the rivet 104 expands from the original inner diameter R5 to the expanded inner diameter R6, and the rod portion 104b of the rivet 104 expands from the outer diameter R1 to the expanded outer diameter R1', which is equal to the inner diameter R2 of the inner annular groove 102a. The rod portion 104b of the rivet 104 is positioned on the mounting portion 102 due to the expanded outer diameter R1', so that the substrate 110 can be secured to the housing. After the rivet 104 secures the substrate 110 to the housing, the plunger 106 can be removed, and the riveting is completed. The plunger 106 can be inserted into or removed from the hollow groove 104c through the opening 104d of the rivet 104. In some embodiments of the present application, the deformable plunger 106 can be a rubber column.

[0071] Please refer to Figure 5 , Figure 6 , Figure 7 , Figure 5 to illustrate a side view of the rivet removal tool 200 of the present application, Figure 6 to illustrate a partially enlarged cross-sectional view of the rivet removal tool 200 of the present application, Figure 7 to illustrate Figure 5 a partially enlarged perspective view of the rivet removal tool 200 of the present application. The above Figures 1 to 4 describes the process of using the riveting structure 100 to secure a substrate 110 to a housing. When the rivet 104 is desired to be removed (for example, when the substrate 110 is desired to be removed from the housing), the rivet removal tool 200 is used to facilitate the removal of the rivet 104 from the mounting portion 102.

[0072] In some embodiments of the present application, the rivet removal tool 200 comprises a pin 205, two handles 201, 203, a chuck mechanism 207, and a sleeve 206. The two handles 201, 203 are pivotally connected to the top end 205b of the pin 205 via a pivot 204. The chuck mechanism 207 is connected to the pin 205. The sleeve 206 is slidably connected to the chuck mechanism 207, and the ends 201a, 203a of the two handles 201, 203 abut the top end 206b of the sleeve 206. By moving the two handles 201, 203 in the direction of the arrow of FIG. 2, the relative position of the sleeve 206 and the pin 205 is pushed, so that the sleeve 206 drives the chuck mechanism 207, and the chuck mechanism 207 clamps the head 104a of the rivet 104. When the head 104a of the rivet 104 is clamped and compressed, the expanded outer diameter R1' of the rod-shaped portion 104b of the rivet 104 is also compressed synchronously. When the expanded outer diameter R1' of the rod-shaped portion 104b is compressed to be smaller than the opening inner diameter of the inner annular groove 102a, the rivet 104 is easily pulled out of the inner annular groove 102a of the mounting portion 102 by the rivet removal tool 200. Figure 5

[0073] In some embodiments of the present application, the ends 201a, 203a of the two handles 201, 203 are U-shaped structures, which facilitate moving the two handles 201, 203 to slide the ends 201a, 203a relative to the top end 206b of the sleeve 206 and push the sleeve 206. Because the distance r1 from the pivot center of the ends 201a, 203a of the two handles 201, 203 to the end is greater than the distance r2 to the side, when the two handles 201, 203 are moved in the direction of the arrow of FIG. 2, the ends 201a, 203a of the two handles 201, 203 drive the sleeve 206 to move downward relative to the top end 205b of the pin 205. Figure 6

[0074] In some embodiments of the present application, the chuck mechanism 207 is connected to the bottom end 205a of the pin 205, and the chuck mechanism 207 comprises a plurality of clamping pieces 208 arranged along a circumferential direction. Adjacent clamping pieces 208 of the plurality of clamping pieces 208 each have a spacing 208c.

[0075] In some embodiments of the present application, each clamping piece 208 has an outwardly expanding slope 208a, and the sleeve 206 has an inner inclined wall 206a corresponding to the outwardly expanding slope 208a. When the sleeve 206 is driven by the ends 201a, 203a of the two handles 201, 203 to move downward relative to the top end 205b of the pin 205, the inner inclined wall 206a of the sleeve 206 abuts the outwardly expanding slope 208a of each clamping piece 208, so that the spacing 208c between the plurality of clamping pieces 208 is reduced. ​​

[0076] In some embodiments of the present application, the sleeve 206 is slidingly connected between the outer expansion surface 208a of the clamping member 208 and the top end 205b of the pin shaft 205, and thereby drives the clamping member 208 to clamp the rivet 104.

[0077] In some embodiments of the present application, each clamping member 208 has a clamping groove 208b, and the outer expansion surface 208a and the clamping groove 208b are located at two opposite sides of each clamping member 208. Each clamping groove 208b is used to abut against the head 104a of the rivet 104 to be removed, so as to clamp and compress the rivet 104, and thereby remove the rivet 104 from the inner annular groove 102a of the mounting portion 102.

[0078] In some embodiments of the present application, when the two handles (201, 203) are moved in the arrow direction, the included angle A1 between the two handles (201, 203) is less than 180 degrees. Figure 5

[0079] The present application provides a riveting structure of a substrate and a housing, which can still achieve connection when the installation height is limited. Only one time of pressing by a pressing head is needed during assembly to achieve assembly, and the assembly is simple and fast. The rivet structure is simple, and can be formed by one time of stamping. The connector is lower in price. When the rivet is removed, a specially designed rivet removal tool is used. The head of the rivet to be removed is clamped by the clamping groove, so as to clamp and compress the rivet, and thereby remove the rivet from the inner annular groove of the mounting portion.

[0080] Although the present application has been disclosed with embodiments as above, it is not intended to limit the present application. Any person skilled in the art can make various modifications and decorations without departing from the spirit and scope of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.​

Claims

1. A rivet removal tool, characterized in that: Include: a pin; a second handle pivotally connected to the top end of the pin; a chuck mechanism connected to the pin; and A sleeve is slidably sleeved on the outside of the chuck mechanism, wherein the ends of the second handles abut against the sleeve.

2. The rivet removal tool according to claim 1, wherein: The ends of the two handles are both U-shaped structures.

3. The rivet removal tool according to claim 1, wherein: The clamping head mechanism comprises a plurality of clamping members, and the plurality of clamping members are arranged along a circular circumference.

4. The rivet removal tool according to claim 3, wherein: Each of the clamping elements has an outwardly expanding inclined surface.

5. The rivet removal tool according to claim 4, characterized in that Each of the clamping pieces has a clamping groove.

6. The rivet removal tool according to claim 5, wherein: The outwardly expanding inclined surface and the clamping groove are located on two opposite sides of each clamping piece.

7. The rivet removal tool according to claim 5, wherein: The clamping groove of each clamping piece abuts against a rivet to be removed.

8. The rivet removal tool according to claim 4, wherein: The sleeve has an inner inclined wall corresponding to the outwardly expanded inclined surface.

9. The rivet removal tool according to claim 4, wherein: The sleeve is slidably connected between the outwardly expanding inclined surface and the top end of the pin shaft.

10. The rivet removal tool according to claim 1, wherein: The included angle of the second handle is less than 180 degrees.

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