Shell assembling structure of hand riveter

Abstract

The utility model relates to a shell assembling structure of a hand riveter, which comprises a handle component and a head component, and the head component is rotatably pivoted to a first end of the handle component; the head assembly and / or the handle assembly comprise / comprises a first sheet metal part and a second sheet metal part, the first sheet metal part and the second sheet metal part are assembled in a riveting mode to form a shell with a containing cavity, and the rotating assembly penetrates through the second sheet metal part and stretches into the containing cavity. Compared with the prior art, the beneficial effects of the utility model are that the plurality of sheet metal parts are riveted and fixed after being assembled to form the housing consistent with the integrally formed structure, thereby facilitating the installation of internal parts, and ensuring the firmness and appearance consistency of the housing at the same time.

Description

Technical Field

[0001] This utility model relates to riveting machines in the field of impact tools of hand tools, and particularly to a housing assembly structure for a rivet gun. Background Technology

[0002] Riveting machines are frequently used in the decoration industry as lightweight hand tools for lap joints. Their general principle and structure are as follows: the center rod of the rivet enters and clamps inside the machine head. By pressing the handle, the center rod is pulled back, forcing the rivet's outer tube to deform and expand. This clamps and positions the lapped material, achieving the purpose of riveting and lap jointing. To allow the riveting machine to adapt to different workplaces and terrains, it is designed with an adjustable head angle.

[0003] Chinese utility model patent CN2455412Y discloses an improved adjustable-angle riveting machine. A transmission rod serves as a pivot at the point where the machine head and handle meet, allowing the machine head to pivot. One end of the transmission rod is driven by a handle pivotally connected to the handle, and the other end is connected to the middle of a driving component. Both ends of the driving component are pivotally connected to the machine head and to a sleeve inside the machine body. Pressing the handle causes the transmission rod to drive the sleeve backward, ensuring a tight fit between the machine head and handle, preventing gaps and wobbling during riveting operations caused by the pivoting mechanism.

[0004] However, in such riveting machines, the outer shell is usually designed as a one-piece molded structure so that the outer shell has a large supporting force when the riveting machine is under pressure, thereby ensuring the consistency of the outer shell.

[0005] However, the rivet gun has many small parts inside, and its one-piece molded structure makes assembly extremely inconvenient and inefficient. Utility Model Content

[0006] In order to solve the above-mentioned problems in the prior art, the present invention provides a housing assembly structure for a rivet gun.

[0007] The above-mentioned problems of this utility model are solved by the following technical solution:

[0008] A housing assembly structure for a rivet gun includes a handle assembly and a head assembly, wherein the head assembly is rotatably pivotally connected to a first end of the handle assembly;

[0009] The head assembly and / or handle assembly includes a first sheet metal part and a second sheet metal part, which are riveted together to form a housing with a receiving cavity. The rotating assembly passes through the second sheet metal part and extends into the receiving cavity.

[0010] The above technical solution is further configured such that: the first sheet metal part is U-shaped, and the two side plates are provided with rivet holes for installing the second sheet metal part;

[0011] The second sheet metal part is provided with a locking protrusion corresponding to the riveting hole.

[0012] A further provision of the above technical solution is that the card protrusion and the riveting hole are connected and fixed by spot welding.

[0013] A further provision of the above technical solution is that the rotating assembly includes a guide sleeve fixed to the head assembly and the handle assembly, and a transmission rod passes through the guide sleeve; the end of the transmission rod is fixed to the handle assembly.

[0014] A further provision of the above technical solution is that the two ends of the guide sleeve are turned outward and then limited within the accommodating cavity.

[0015] A further provision of the above technical solution is that an anti-wear block is fixed on the outer end face of the second sheet metal part.

[0016] A further provision of the above technical solution is that an elastic component is provided between the head assembly and the handle assembly; the elastic component abuts against the outer end face of the anti-wear block.

[0017] A further provision of the above technical solution is that the handle assembly includes a fixed handle and a movable handle pivotally connected to the fixed handle, and the transmission rod is connected to the movable handle.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: multiple sheet metal parts are assembled and riveted to form an outer shell consistent with the one-piece molded structure, which facilitates the installation of internal components and ensures the sturdiness and appearance consistency of the outer shell. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the exploded structure of this utility model (elastic components are not shown).

[0021] Figure 3 This is an exploded structural diagram of the housing of the head assembly.

[0022] Figure 4 This is a cross-sectional structural diagram of the present invention (elastic components are not shown).

[0023] Figure 5 This is an isometric sectional view of the present invention (elastic components are not shown).

[0024] Figure 6 for Figure 4 A magnified structural diagram of part A in the middle.

[0025] The attached diagram is labeled: 100, head assembly; 110, movable handle; 120, fixed handle;

[0026] 200. Handle assembly;

[0027] 1. First sheet metal part; 2. Second sheet metal part; 3. Anti-wear block; 2.1. Assembly hole; 2.2. Clip protrusion; 1.1. Riveting hole; 2.3. Extension part; 4. Screw; 5. Third sheet metal part; 6. Guide sleeve; 7. Transmission rod; a. Degree of freedom clearance; 8. Elastic component. Detailed Implementation

[0028] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0029] A housing assembly structure for a rivet gun includes a handle assembly 200 and a head assembly 100, wherein the head assembly 100 is rotatably pivotally connected to a first end of the handle assembly 200.

[0030] The head assembly 100 and / or handle assembly 200 include a first sheet metal part 1 and a second sheet metal part 2, which are riveted together to form a housing with a receiving cavity. The rotating assembly passes through the second sheet metal part 2 and extends into the receiving cavity.

[0031] The above is the basic scheme of this embodiment.

[0032] Specific reference Figure 1 and Figure 2 As shown, in this embodiment, the head assembly 100 and the handle assembly 200 are both formed by riveting the first sheet metal part 1 and the second sheet metal part 2, which facilitates the installation of the internal structure of the two components.

[0033] Specifically, refer to Figure 1 As shown, the rivet gun is configured with two parts: a handle assembly 200 and a head assembly 100, and the head assembly 100 and the handle assembly 200 can rotate relative to each other.

[0034] The head assembly 100 is equipped with a rivet assembly, and the rivet head of the rivet assembly extends out of the housing.

[0035] The surface between the head assembly 100 and the handle assembly 200 is set as an inclined surface.

[0036] Reference Figure 2As shown, the second sheet metal parts 2 on the head assembly 100 and the handle assembly 200 are both located at the assembly position, that is, after the rotating component passes through the two second sheet metal parts 2, its two ends extend into the head assembly 100 and the handle assembly 200 respectively.

[0037] The second sheet metal part 2 is provided with an assembly hole 2.1 that can accommodate the passage of the rotating component.

[0038] In this embodiment, the driving method and structure of the handle assembly 200 and the riveting assembly are the same as those of the existing riveting gun, and will not be described in detail here.

[0039] In this embodiment, the first sheet metal part 1 is U-shaped, and the two side plates are provided with rivet holes 1.1 for installing the second sheet metal part 2;

[0040] The second sheet metal part 2 is provided with a locking protrusion 2.2 corresponding to the riveting hole 1.1.

[0041] In addition, in the second sheet metal part 2 of the head assembly 100, an extension 2.3 is provided at the upper end of the second sheet metal part 2. The extension 2.3 is set at an obtuse angle with the main body of the second sheet metal part 2 and is used as the upper end surface of the shell of the head assembly 100.

[0042] The second sheet metal part 2 extends between the two side plates of the first sheet metal part 1, supports the two side plates, and combines with the first sheet metal part 1 to form a complete shell.

[0043] During assembly, the second sheet metal part 2 is inserted between the two side plates of the first sheet metal part 1, and the snap-fit ​​protrusion 2.2 and the riveting hole 1.1 are aligned before riveting. The snap-fit ​​protrusion 2.2 is then inserted into the riveting hole 1.1.

[0044] In this embodiment, to ensure a firm connection of the outer shell, the protrusion 2.2 and the rivet hole 1.1 are connected and spot-welded together.

[0045] The protrusion 2.2 is a protruding structure on the two sides of the second sheet metal part 2.

[0046] In this embodiment, refer to Figure 3 As shown, a third sheet metal part 5 is also provided in the head assembly 100. The third sheet metal part 5 is located below the first sheet metal part 1 and is also riveted and fixed to the first sheet metal part 1 by a snap protrusion 2.2 and a rivet hole 1.1.

[0047] After the snap-fit ​​protrusion 2.2 and the rivet hole 1.1 are connected, they are still detachable. Therefore, the snap-fit ​​protrusion 2.2 and the rivet hole 1.1 are spot-welded to fix the edges of the snap-fit ​​protrusion 2.2 and the rivet hole 1.1 to ensure the integrity of the shell.

[0048] In addition, in this embodiment, after spot welding, the position of the protrusion 2.2 is ground so that the outer end face of the protrusion 2.2 and the outer end face of the side plate of the first sheet metal part 1 are flush, thereby making the protrusion 2.2 and the first sheet metal part 1 an integral unit, ensuring the smoothness and consistency of the outer shell.

[0049] In this embodiment, the rotating assembly includes a guide sleeve 6 fixed to the head assembly 100 and the handle assembly 200, and a transmission rod 7 is inserted inside the guide sleeve 6; the end of the transmission rod 7 is fixed to the handle assembly 200.

[0050] Specific reference Figure 4 and Figure 5 The fixed end of the transmission rod 7 extends into the handle assembly 200 and is fixed to the drive component inside the handle assembly 200, while the movable end extends into the head assembly 100 and is movably connected to the riveting component inside the head assembly 100. When the user operates the handle assembly 200, the transmission rod 7 is moved, thereby driving the riveting component.

[0051] Specifically, the two ends of the guide sleeve 6 are turned outward and then limited within the accommodating cavity.

[0052] Specific reference Figure 6 As shown, the guide sleeve 6 is a cylindrical structure that passes through the assembly holes 2.1 of the two second sheet metal parts 2. The two ends of the guide sleeve 6 extend into the inner side of the two second sheet metal parts 2, that is, the two ends of the guide sleeve 6 extend into the receiving chambers in the head assembly 100 and the handle assembly 200, respectively. During assembly, the two ends of the guide sleeve 6 are turned outward by riveting or other means to form a limit between them and the two second sheet metal parts 2. The outer diameter of the turned-out part is larger than the diameter of the assembly hole 2.1 on the second sheet metal part 2.

[0053] When the handle assembly 200 and the head assembly 100 rotate relative to each other, the two second sheet metal parts 2 will slide relative to each other, thus generating friction. In order to avoid friction causing the second sheet metal parts 2 to malfunction, in this embodiment, an anti-wear block 3 is fixed on the outer end face of the second sheet metal parts 2.

[0054] In this embodiment, the anti-wear block 3 is fixed to the second sheet metal part 2 by screws 4; and the anti-wear block 3 is provided with a clearance hole that is consistent with the mounting hole 2.1 on the second sheet metal part 2.

[0055] Preferably, in this embodiment, the outer end face of the anti-wear block 3 is at least flush with the ends of the two side plates of the first sheet metal part 1 at the mounting position of the anti-wear block 3, that is, when the handle assembly 200 and the head assembly 100 rotate relative to each other, the two anti-wear blocks 3 contact each other and produce relative sliding.

[0056] In addition, in the prior art, for ease of assembly, a degree-of-freedom gap a is usually left between the handle assembly 200 and the head assembly 100 to allow for smooth relative rotation between the handle assembly 200 and the head assembly 100. However, if the degree-of-freedom gap a is too large, it is not easy for the operator to control when adjusting the angle of the head assembly 100. Therefore, in this embodiment, an elastic member 8 is provided between the head assembly 100 and the handle assembly 200; the elastic member 8 abuts against the outer end face of the anti-wear block 3.

[0057] Specific reference Figure 5 As shown, the gap is located between the two anti-wear blocks 3, and the two ends of the elastic member 8 abut against the outer end faces of the two anti-wear blocks 3, so that the head assembly 100 and the handle assembly 200 have a small amount of damping when rotating relative to each other, which makes it convenient for the user to control the rotation angle of the head assembly 100.

[0058] Preferably, in this embodiment, the elastic component 8 can be a conventional spring or a wave-shaped washer.

[0059] In this embodiment, the handle assembly 200 includes a fixed handle 120 and a movable handle 110 pivotally connected to the fixed handle 120, and the transmission rod 7 is connected to the movable handle 110.

[0060] When operating the handle, pressure is applied to the movable handle 110 to make it rotate, thereby driving the transmission rod 7 and driving the riveting assembly to work.

[0061] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A housing assembly structure for a rivet gun, comprising a handle assembly (200) and a head assembly (100), wherein the head assembly (100) is rotatably pivotally connected to a first end of the handle assembly (200); Its features are: The head assembly (100) and / or handle assembly (200) include a first sheet metal part (1) and a second sheet metal part (2), which are riveted together to form a housing with a receiving cavity. The rotating assembly passes through the second sheet metal part (2) and extends into the receiving cavity.

2. The housing assembly structure of the rivet gun according to claim 1, characterized in that: The first sheet metal part (1) is U-shaped, and the two side plates are provided with rivet holes (1.1) for installing the second sheet metal part (2); The second sheet metal part (2) is provided with a locking protrusion (2.2) corresponding to the riveting hole (1.1).

3. The housing assembly structure of the rivet gun according to claim 2, characterized in that: The protrusion (2.2) and the rivet hole (1.1) are connected and fixed by spot welding.

4. The housing assembly structure of the rivet gun according to claim 1, characterized in that: The rotating assembly includes a guide sleeve (6) fixed to the head assembly (100) and the handle assembly (200), and a transmission rod (7) is inserted inside the guide sleeve (6); the end of the transmission rod (7) is fixed to the handle assembly (200).

5. The housing assembly structure of the rivet gun according to claim 4, characterized in that: The two ends of the guide sleeve (6) are turned outward and then limited to the accommodating cavity.

6. The housing assembly structure of the rivet gun according to claim 1, characterized in that: A wear-resistant block (3) is fixed on the outer end face of the second sheet metal part (2).

7. The housing assembly structure of the rivet gun according to claim 6, characterized in that: An elastic member (8) is provided between the head assembly (100) and the handle assembly (200); the elastic member (8) abuts against the outer end face of the anti-wear block (3).

8. The housing assembly structure of the rivet gun according to claim 4, characterized in that: The handle assembly (200) includes a fixed handle (120) and a movable handle (110) pivotally connected to the fixed handle (120), and the transmission rod (7) is connected to the movable handle (110).

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