Anti-blocking hand riveter and pull claw outer sleeve of hand riveter

Abstract

The utility model discloses an anti-jamming hand riveter and a pull claw jacket of the hand riveter, which comprise a shell, a head shell, a pull claw jacket, a motor, a transmission component and a pull claw component, the head shell is connected to the shell and combined with the shell to form an assembly cavity, and the motor and the transmission component are mounted in the assembly cavity. The transmission assembly comprises a planetary gear reducer, a first gear, a second gear, a lead screw and a lead screw nut limited in the assembly cavity to rotate, the lead screw nut drives the lead screw to do linear motion when the motor is started and the lead screw nut rotates, and the pull claw assembly is connected to the front end of the lead screw, located outside the head shell and driven by the lead screw to do reciprocating motion. The pull claw outer sleeve comprises a sleeve body, the rear end of the sleeve body is fixedly connected with the head shell and arranged on the outer side of the pull claw assembly in a sleeving mode, an inserting opening is formed in the front end of the sleeve body, and at least one waste discharging hole is formed in the side wall of the sleeve body and used for discharging rivet pulling waste remaining in the sleeve body.

Description

Technical Field

[0001] The utility model relates to a rivet gun, in particular to a rivet gun with anti-stuck material function and a claw outer sleeve of the rivet gun. Background Art

[0002] Rivet guns are tools specially used for installing rivets, and are usually divided into manual riveter guns, pneumatic riveter guns, and electric riveter guns. Generally speaking, manual riveter guns are laborious to use, and are prone to fatigue and low efficiency during frequent and continuous riveting work; pneumatic riveter guns have the advantages of fast speed and high pulling force, but they must have an air source, are noisy, and cannot be used in the field; electric riveter guns, especially handheld electric riveter guns, are easy to carry and can be used in the field, and are widely used.

[0003] For example, the electric rivet gun disclosed in patent CN205798316U includes a shell, an outer sleeve, a motor located in the shell, a transmission mechanism, a riveting mechanism and a control mechanism. The motor is connected to the transmission mechanism, and the transmission mechanism is connected to the riveting mechanism. The motor has a motor shaft that drives the transmission mechanism to drive the riveting structure to move. The transmission mechanism includes a planetary gear reducer, a screw, a screw nut, a parallel shaft, a second spur gear, an output shaft, and a first spur gear. The input end of the planetary gear reducer is connected to the motor shaft, and the output end of the planetary gear reducer is connected to the output shaft. The first spur gear is fixedly sleeved on the output shaft, and the screw nut is rotatably arranged in the shell. The second spur gear is fixed to the outside of the screw nut and meshes with the first spur gear. The screw is inserted into the screw nut and cooperates with the screw nut. The riveting mechanism includes a spring sleeve threadedly connected to the front end of the screw. A clamping sleeve, three claws located in the clamping sleeve, a top core, and a top core spring. The clamping sleeve and the spring sleeve are connected by screws. The parallel shaft is hollow inside and passes through the center of the screw rod. The front end of the parallel shaft is opposite to the riveting mechanism, and the rear end of the parallel shaft is connected to the nail collecting box arranged at the rear end of the screw rod. The outer sleeve is fixedly connected to the front end of the shell and is sleeved on the outside of the riveting mechanism. The front end of the outer sleeve is connected with a guide nozzle. When the motor drives the output shaft to rotate through the planetary gear reducer, the first spur gear drives the second spur gear and the screw nut to rotate. The cooperation of the screw rod and the screw nut converts the rotational motion of the second spur gear into linear motion. The screw rod drives the spring sleeve to perform reciprocating linear motion, so that the clamping jaws perform riveting work. When the rivet head and the nail core are pulled off and separated, the nail core falls into the nail collecting box through the hollow parallel shaft located in the screw rod and the discharge pipe connected to the parallel shaft.

[0004] After the rivets of the existing rivet gun are broken, waste aluminum or waste iron will fall into the claw housing, causing the claw assembly to be stuck in the claw housing during the forward and backward movement, thereby damaging the tool and making it unusable. Utility Model Content

[0005] Based on the problem that after the rivets of the above-mentioned rivet gun are broken, waste aluminum or waste iron will fall into the claw housing, causing the claw assembly to be stuck in the claw housing during the forward and backward movement, the utility model provides a rivet gun and a claw housing of the rivet gun that prevents material from getting stuck.

[0006] The technical solution adopted by the utility model to solve the above technical problems is: a rivet gun with anti-jamming, including a shell, a head shell, a claw jacket, a motor, a transmission assembly and a claw assembly for clamping rivets for riveting, the head shell is connected to the shell and combined with the shell to form an assembly cavity, the motor and the transmission assembly are installed in the assembly cavity, the transmission assembly includes a planetary gear reducer, a first gear, a second gear, a screw and a screw nut limited to rotate in the assembly cavity, the motor shaft of the motor is connected to the input end of the planetary gear reducer, the output end of the planetary gear reducer has an output shaft, the first gear is fixedly connected to the output shaft, the outer wall of the screw nut is fixed with a second gear meshing with the first gear for transmission, the screw The screw nut is connected with the screw nut through the screw nut. When the motor is started and the screw nut rotates, the screw nut drives the screw to move linearly. The claw assembly is connected to the front end of the screw and is located outside the head shell. The claw assembly is driven to reciprocate by the screw. The claw sleeve includes a sleeve body, a cavity is provided in the sleeve body, and the rear end of the sleeve body is fixedly connected to the head shell and is sleeved on the outside of the claw assembly located outside the head shell. The rear end of the sleeve body is provided with a first opening of the cavity for the claw assembly to enter, and the front end of the sleeve body is provided with a socket for inserting the rivet into the cavity. At least one waste discharge hole is provided on the side wall of the sleeve body, and the waste discharge hole is used to discharge the rivet waste remaining in the sleeve body.

[0007] A further preferred technical solution of the utility model is that at least two rows of waste discharge holes in a circumferential array are provided on the side wall of the sleeve body along the length direction, and the positions of the waste discharge holes in two adjacent rows are staggered.

[0008] A further preferred technical solution of the utility model is: the waste discharge hole is arranged at a position adjacent to the socket at the front end of the sleeve body, and the waste discharge hole has an extension length extending along the length direction of the sleeve body.

[0009] A further preferred technical solution of the utility model is: an annular collecting groove is provided on the inner wall of the cavity, and the waste discharge hole is at least partially provided in the collecting groove.

[0010] A further preferred technical solution of the utility model is: a first connecting hole connected to the inside of the head shell is provided at the front end of the head shell, the front end of the screw rod extends from the first connecting hole and is connected to an external pulling claw assembly, the first connecting hole is a threaded hole, and a threaded connection part is provided at the rear end of the sleeve body, and the threaded connection part is threadedly connected in the first connecting hole, and an outer ring edge is provided on the side wall at the rear end of the sleeve body for upper limiting the edge of the hole opening of the first connecting hole when threadedly connected.

[0011] Another topic: The claw cover of a rivet gun includes a sleeve body, a cavity is provided in the sleeve body, a first opening of the cavity is provided at the rear end of the sleeve body, a socket connected to the cavity is provided at the front end of the sleeve body, and at least one waste discharge hole connected to the internal cavity is provided on the side wall of the sleeve body.

[0012] A further preferred technical solution of the utility model is that at least two rows of waste discharge holes in a circumferential array are provided on the side wall of the sleeve body along the length direction, and the positions of the waste discharge holes in two adjacent rows are staggered.

[0013] A further preferred technical solution of the utility model is: an annular collecting groove is provided on the inner wall of the cavity, and the waste discharge hole is at least partially provided in the collecting groove.

[0014] A further preferred technical solution of the utility model is: a threaded connection portion for connection is provided at the rear end of the sleeve body, an outer ring edge for abutting and limiting during threaded connection is provided on the side wall of the sleeve body located in front of the threaded connection portion, and at least one group of disassembly plane groups for tool disassembly and assembly are provided on the side wall of the sleeve body, the disassembly plane group includes two disassembly planes, and the two disassembly planes are arranged at symmetrical positions on both sides of the outer side wall of the sleeve body.

[0015] A further preferred technical solution of the utility model is: the waste discharge hole is arranged at a position adjacent to the socket at the front end of the sleeve body, and the waste discharge hole has an extension length extending along the length direction of the sleeve body.

[0016] Compared with the prior art, the advantage of the utility model is that at least one waste discharge hole is arranged on the side wall of the sleeve body. When the rivet gun is started and the claw assembly moves backward until the rivet breaks, the waste that falls when the rivet breaks can fall out of the claw housing through the waste discharge hole of the claw housing, thereby preventing the waste from getting stuck in the claw assembly when the claw assembly resets and moves forward, or preventing the claw assembly from pushing the waste into the claw housing, causing the machine overcurrent protection or directly cracking the head shell connected to the claw housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be used as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematically representing the composition or structure of the described object and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0018] Figure 1 It is a schematic diagram of the overall structure of a rivet gun;

[0019] Figure 2This is a disassembled diagram of the claw jacket, guide nozzle and rivet gun;

[0020] Figure 3 The structure of the claw jacket is shown in Figure 1. Figure 1 ;

[0021] Figure 4 The structure of the claw jacket is shown in Figure 1. Figure 2 ;

[0022] Figure 5 It is a longitudinal section schematic diagram of the claw jacket;

[0023] Figure 6 It is an overall cutaway diagram of a rivet gun;

[0024] Figure 7 It is a schematic diagram of the transverse section of the claw jacket.

[0025] In the figure: 1. shell; 2. head shell; 3. claw cover; 4. waste discharge hole; 5. guide nozzle; 6. nail collection box; 7. claw assembly; 8. first connecting hole; 9. sleeve body; 10. disassembly and assembly plane; 11. outer ring edge; 12. threaded connection part; 13. first opening; 14. straight section; 15. gathering section; 16. socket; 17. first cavity; 18. second cavity; 19. second connecting hole; 20. handle; 21. control switch; 22. main shell; 23. claw; 24. motor; 25. planetary gear reducer; 26. output shaft; 27. first gear; 28. discharge pipe; 29. ​​nail core guide tube; 30. screw rod; 31. screw rod nut; 32. second gear; 33. spring sleeve; 34. clamping sleeve; 35. cavity; 36. top core; 37. collecting tank. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It will be appreciated by those skilled in the art that these descriptions are merely illustrative and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0027] It should be noted that like reference numerals denote similar items in the following drawings, and thus, once an item is defined in one drawing, it may not be further defined or explained in subsequent drawings.

[0028] Figure 1-Figure 7 As shown, the anti-stuck rivet gun includes a shell 1, a head shell 2, a claw housing 3, a motor 24, a transmission assembly and a claw assembly 7 for clamping rivets for riveting.

[0029] The head shell 2 is connected to the outer shell 1 and combined with the outer shell 1 to form an assembly cavity, and the motor 24 and the transmission assembly are installed in the assembly cavity.

[0030] Figure 6 As shown, the transmission assembly includes a planetary gear reducer 25, a first gear 27, a second gear 32, a screw 30 and a screw nut 31 restricted in rotation in the assembly cavity. The motor shaft of the motor 24 is connected to the input end of the planetary gear reducer 25, and the output end of the planetary gear reducer 25 has an output shaft 26. The first gear 27 is fixedly connected to the output shaft 26. The outer wall of the screw nut 31 is fixed with a second gear 32 meshing with the first gear 27. The screw 30 passes through the screw nut 31 and is connected with the screw nut 31. When the motor 24 is started, the motor shaft of the motor 24 drives the first gear 27 to rotate through the output shaft 26 of the planetary gear reducer 25, and the first gear 27 drives the second gear 32 meshing with it to rotate. When the second gear 32 rotates, the screw nut 31 drives the screw 30 to move linearly. The claw assembly 7 is connected to the front end of the screw 30 and is located outside the head shell 2. The claw assembly 7 is driven by the screw 30 to reciprocate linearly. The transmission structure of the transmission assembly is the same as the transmission structure on the existing rivet gun, and reference may be made to the transmission structure disclosed in patent CN205798316U.

[0031] The axis center line of the output shaft 26 is parallel to the axis center line of the screw nut 31 .

[0032] Figure 2 As shown, a first connecting hole 8 is opened at the front end of the head shell 2 to connect to the interior of the head shell 2 , and a front end of the screw rod 30 extends from the first connecting hole 8 to connect to the external pulling claw assembly 7 .

[0033] The housing 1 includes a main shell 22 and a handle 20 fixed on the main shell 22. The handle 20 is provided with a control switch 21. The bottom end of the handle 20 is detachably connected to a lithium battery pack.

[0034] The claw cover 3 is connected to the front end of the head shell 2 , and the claw cover 3 is sleeved on the outer side of the claw assembly 7 located outside the head shell 2 .

[0035] Figure 1-Figure 4 As shown, the claw housing 3 includes a sleeve body 9, in which a cavity 35 is provided for accommodating the claw assembly 7 to reciprocate and draw rivets. A first opening 13 of the cavity 35 is provided at the rear end of the sleeve body 9, and the claw assembly 7 enters the cavity 35 from the first opening 13. A socket 16 for inserting rivets into the cavity 35 is provided at the front end of the sleeve body 9, and at least one waste discharge hole 4 connected to the cavity 35 is provided on the side wall of the sleeve body 9.

[0036] The claw assembly 7 is the same as the riveting mechanism in the existing riveting gun, for example, it includes a spring sleeve 33, a clamping sleeve 34, three claws 23 located in the clamping sleeve 34, a top core 36 and a top core spring, the clamping sleeve 34 is connected to the spring sleeve 33 by threads, and the spring sleeve 33 is connected to the front end of the screw rod 30 by threads. Reference can be made to the riveting mechanism disclosed in patent CN205798316U.

[0037] During riveting, the rivet core is inserted from the socket 16 between the three claws 23 in the cavity 35, and the rivet gun is started so that the screw rod 30 is driven by the screw rod nut 31 to move linearly backward. The screw rod 30 pulls the spring sleeve 33 to move backward so that the three claws 23 clamp the core and pull the core backward until the rivet head and the core are pulled apart. After the nail head and the core are pulled apart, the screw rod 30 drives the spring sleeve 33 to move forward and reset to prepare for the next riveting.

[0038] When the rivet gun is started and the claw assembly 7 moves backward until the rivet breaks, the waste that falls when the rivet breaks can fall out of the claw housing 3 through the waste discharge hole 4 of the claw housing 3, thereby preventing the waste from getting stuck in the claw assembly 7 when the claw assembly 7 is reset and moves forward, or the claw assembly 7 pushes the waste into the claw housing 3, causing the machine overcurrent protection or directly cracking the head shell 2 connected to the claw housing 3.

[0039] Figure 5 As shown, preferably, the cavity 35 includes a first cavity 17 and a second cavity 18, the first cavity 17 is a straight cavity extending axially along the sleeve body 9, the first opening 13 is connected to the rear end of the first cavity 17, the second cavity 18 is a bell-mouth shape, the second cavity 18 is located in front of the first cavity 17, and the large mouth end of the second cavity 18 is connected to the front end of the first cavity 17, and the socket 16 is connected to the small mouth end of the second cavity 18.

[0040] The sleeve body 9 is a cylindrical main body structure.

[0041] Preferably, the first communication hole 8 is a threaded hole, and the rear end of the sleeve body 9 is provided with a threaded connection portion 12, which is inserted into the first communication hole 8 and threadedly connected with the first communication hole 8, so that the sleeve body 9 is fixedly connected to the front end of the head shell 2. The threaded connection portion 12 is an external thread provided on the outer wall of the rear end of the sleeve body 9.

[0042] In addition, an outer ring edge 11 is provided on the side wall at the rear end of the sleeve body 9, and the outer ring edge 11 is located on the front side of the threaded connection part 12. The outer ring edge 11 is used to limit the sleeve body 9 on the edge of the opening of the first connecting hole 8 when the threaded connection part 12 is screwed into the first connecting hole 8, so as to prevent the sleeve body 9 from being screwed in too much.

[0043] In addition, at least one group of disassembly planes for tools to disassemble and assemble is provided on the side wall of the sleeve body 9, and the disassembly plane group includes two disassembly planes 10. The two disassembly planes 10 are arranged at symmetrical positions on both sides of the outer side wall of the sleeve body 9. The pliers used for disassembly and assembly can be clamped on the two disassembly planes 10 to rotate the sleeve body 9, so that the threaded connection part 12 at the rear end of the sleeve body 9 is screwed into or out of the first connecting hole 8.

[0044] Preferably, two groups of disassembly and assembly plane groups are provided.

[0045] Figure 3 , Figure 4 As shown, preferably, the waste discharge hole 4 is arranged at a position adjacent to the socket 16 at the front end of the sleeve body 9. Specifically, the sleeve body 9 includes a gathering section 15 and a straight section 14 at the front end, the outer diameter of the gathering section 15 gradually decreases from the back to the front, the gathering section 15, the straight section 14, the disassembly plane 10, the outer ring edge 11 and the threaded connection portion 12 are arranged in sequence from the front to the back, and the waste discharge hole 4 is arranged at the connection between the straight section 14 and the gathering section 15 and / or on the straight section 14.

[0046] Since the fractured part is basically located at the front end of the sleeve body 9 when the rivet breaks, the waste discharge hole 4 is arranged at the front end of the sleeve body 9 to ensure the discharge of waste without machining too many holes on the sleeve body 9 to cause the sleeve body 9 to have too low strength.

[0047] Preferably, at least two rows of waste discharge holes 4 are arranged in a circumferential array on the side wall of the sleeve body 9 along the length direction, and the positions of the waste discharge holes 4 in two adjacent rows are staggered, so that waste can be discharged in the circumferential direction of the sleeve body 9, and the staggered arrangement makes the waste discharge effect optimal. Preferably, two rows of waste discharge holes 4 are provided on the sleeve body 9.

[0048] Preferably, the waste discharge hole 4 has an extended length extending along the length direction of the sleeve body 9 to meet the waste discharge requirements in a wider range. Preferably, the waste discharge hole 4 is a waist-shaped hole.

[0049] Figure 5 , Figure 7 As shown, preferably, an annular collecting groove 37 is provided on the inner wall of the cavity 35, and the waste discharge hole 4 is at least partially provided in the collecting groove 37, and the collecting groove 37 can be used to collect the waste dropped when the rivet is broken, and then discharged from the waste discharge hole 4. The collecting groove 37 is opened on the inner wall of the first cavity 17.

[0050] Figure 2 As shown, the front end of the sleeve body 9 is threadedly connected with the guide nozzle 5, and the sleeve body 9 is provided with a second connecting hole 19 located between the socket 16 and the second cavity 18. The second connecting hole 19 connects the socket 16 and the second cavity 18. The second connecting hole 19 is a threaded hole. After the guide nozzle 5 is inserted into the socket 16, it is threadedly connected to the second connecting hole 19.

[0051] In addition, the screw rod 30 is hollow inside and has two ends through, and a nail core guide tube 29 is provided in the center of the screw rod 30, the front end of the nail core guide tube 29 is opposite to the claw assembly 7, and the rear end of the nail core guide tube 29 is connected to the nail collection box 6 provided at the rear end of the screw rod 30. When the rivet head and the nail core are pulled apart, the nail core falls into the nail collection box 6 through the nail core guide tube 29 located in the screw rod 30 and the discharge tube 28 connected to the nail core guide tube 29. This structure is the same as that of the existing rivet gun, and the patent CN205798316U can be referred to.

[0052] The other structures of the electric rivet gun are the same as those of the existing rivet guns. For example, a controller and other electronic components are arranged in the housing 1.

[0053] The above is an introduction to the anti-stuck rivet gun and the rivet gun claw cover provided by the utility model. This article uses specific examples to illustrate the principle and implementation of the utility model. The description of the above embodiments is only used to help understand the utility model and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A rivet gun for preventing material from getting stuck, comprising a shell, a head shell, a claw jacket, a motor, a transmission assembly and a claw assembly for clamping rivets for riveting, the head shell being connected to the shell and combined with the shell to form an assembly cavity, the motor and the transmission assembly being installed in the assembly cavity, the transmission assembly comprising a planetary gear reducer, a first gear, a second gear, a screw and a screw nut limited to rotate in the assembly cavity, the motor shaft of the motor being connected to the input end of the planetary gear reducer, the output end of the planetary gear reducer having an output shaft, the first gear being fixedly connected to the output shaft, the outer wall of the screw nut being fixed with a second gear meshing with the first gear for transmission, the screw passing through the screw nut and being connected with the screw nut, when the motor is started and the screw nut rotates, the screw nut drives the screw to move linearly, the claw assembly is connected to the front end of the screw and is located outside the head shell, the claw assembly is driven to reciprocate by the screw, and is characterized in that, The claw sleeve includes a sleeve body with a cavity provided therein. The rear end of the sleeve body is fixedly connected to the head shell and is sleeved on the outside of the claw assembly located outside the head shell. The rear end of the sleeve body is provided with a first opening of the cavity for the claw assembly to enter. The front end of the sleeve body is provided with a socket for the rivet to be inserted into the cavity. The side wall of the sleeve body is provided with at least one waste discharge hole for discharging rivet waste remaining in the sleeve body.

2. The anti-stuck rivet gun according to claim 1, characterized in that: At least two rows of waste discharge holes in a circumferential array are arranged on the side wall of the sleeve body along the length direction, and the positions of the waste discharge holes in two adjacent rows are staggered.

3. The anti-stuck rivet gun according to claim 1, characterized in that: The waste discharge hole is arranged at a position adjacent to the insertion opening at the front end of the sleeve body, and the waste discharge hole has an extension length extending along the length direction of the sleeve body.

4. The anti-jamming rivet gun according to claim 1, 2 or 3, characterized in that: An annular collecting groove is arranged on the inner wall of the cavity, and the waste discharge hole is at least partially arranged in the collecting groove.

5. The anti-stuck rivet gun according to claim 1, characterized in that: The front end of the head shell is provided with a first connecting hole connected to the inside of the head shell, the front end of the screw rod extends from the first connecting hole and is connected to the external pulling claw assembly, the first connecting hole is a threaded hole, the rear end of the sleeve body is provided with a threaded connection part, the threaded connection part is threadedly connected in the first connecting hole, and the side wall of the rear end of the sleeve body is provided with an outer ring edge for upper limiting the edge of the hole opening of the first connecting hole when threadedly connected.

6. The claw cover of the rivet gun is characterized by: It includes a sleeve body, a cavity is arranged in the sleeve body, a first opening of the cavity is arranged at the rear end of the sleeve body, a socket connected to the cavity is arranged at the front end of the sleeve body, and at least one waste discharge hole connected to the internal cavity is arranged on the side wall of the sleeve body.

7. The claw cover of the rivet gun according to claim 6, characterized in that: At least two rows of waste discharge holes in a circumferential array are arranged on the side wall of the sleeve body along the length direction, and the positions of the waste discharge holes in two adjacent rows are staggered.

8. The claw cover of the rivet gun according to claim 6, characterized in that: An annular collecting groove is arranged on the inner wall of the cavity, and the waste discharge hole is at least partially arranged in the collecting groove.

9. The claw cover of the rivet gun according to claim 6, characterized in that: A threaded connection portion for connection is provided at the rear end of the sleeve body, an outer ring edge for abutting and limiting during threaded connection is provided on the side wall of the sleeve body located in front of the threaded connection portion, and at least one group of disassembly plane groups for tool disassembly and assembly is provided on the side wall of the sleeve body, the disassembly plane group includes two disassembly planes, and the two disassembly planes are arranged at symmetrical positions on both sides of the outer side wall of the sleeve body.

10. The claw cover of the rivet gun according to claim 6, 7 or 8, characterized in that: The waste discharge hole is arranged at a position adjacent to the insertion opening at the front end of the sleeve body, and the waste discharge hole has an extension length extending along the length direction of the sleeve body.

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