CN205021541U - A safety arrangement for power actuated setting device switch - Google Patents

Abstract

The utility model discloses a safety protection device for a nail gun switch, which comprises a mounting seat (1), a connecting plate (2), a push rod (3), a trigger (4), a pressing plate (12) and an elastic paddle (5), the connecting plate (2) includes a first vertical plate (2.1), a horizontal plate (2.2) and a second vertical plate (2.3); the upper end of the second vertical plate (2.3) is provided with a bayonet (6), push The lower end of the rod (3) is provided with a card slot (7) for connecting with the bayonet (6); 3) A through hole (8) through which the upper end passes; a guiding device is provided in the mounting seat (1); a reset device is provided between the push rod (3) and the mounting seat (1). The invention provides a safety protection device for a nail gun switch which has a small probability of accidentally injuring operators.

Description

Safety protection device for nail gun switch

technical field

The utility model relates to the technical field of nail guns, in particular to a safety protection device for a nail gun switch.

Background technique

The nail gun is a common tool, mainly used in home decoration and furniture decoration. Among them, the nail gun is a powerful tool with a high risk factor. When the nail is shot out of the nail gun, it can obtain a speed of at least 420 meters per second, which also causes the number of people injured by the nail gun every year. raised. The main reason for this phenomenon is that the operator accidentally presses the switch of the nail gun to cause nails to be shot out of the nail gun. That is to say, when the operator does not want to shoot nails, the nails will be shot out of the nail gun And shoot at the human body. Therefore, new requirements are put forward for improving the safety of the nail gun switch device, so as to ensure the safety of the operator.

Utility model content

The technical problem to be solved by the utility model is to overcome the existing technical defects and provide a safety protection device for the switch of the nail gun with a small probability of accidentally injuring the operator.

The technical solution of the present invention is to provide a safety protection device for a nail gun switch with the following structure: including a mounting seat fixedly connected to the nail gun shell, a connecting plate, a push rod, a trigger and a Or close the paddle of the switch in the nail gun, the connecting plate includes a first vertical plate for contacting with the shot workpiece, a horizontal plate for transmission and a second vertical plate for connecting with the lower end of the push rod; the second vertical plate The upper end of the plate is provided with a bayonet, and the lower end of the push rod is provided with a slot for connecting with the bayonet; the push rod is slidably connected in the mounting seat, and the mounting seat is provided with a through hole for the upper end of the push rod to pass through; the trigger passes through The first hinge point is rotatably connected to the mounting base, and the nail gun housing is provided with a stopper for trigger limit; the paddle is rotatably connected to the trigger through the second hinge point, and the second hinge point is set far away from the first hinge point. point; the through hole on the mounting base is located below the paddle, and the paddle is located below the switch in the block; the pressure plate is fixedly connected to the nail gun shell near the nail injection position, the first vertical The plate is slidingly connected between the pressure plate and the nail gun housing; the mounting seat is provided with a guiding device for the push rod to move in the vertical direction; To the reset device of the movement.

In the utility model, when the nail shooting end of the nail gun is close to the surface of the workpiece to be shot, the connecting plate will be pushed up, and the movement of the connecting plate will push the movement of the push rod, and the movement of the push rod will lift up the paddle, thereby changing the paddle. The distance from the internal switch of the block, at this time, the trigger can be turned on to start the nail gun to shoot nails; otherwise, when the distance between the paddle and the internal switch of the block has not been changed, no matter how much you pull the trigger, it will only make the trigger Abutting against the edge of the retainer, the trigger cannot be brought into contact with the switch in the retainer, that is to say, the trigger cannot start the nail gun for nailing work; thereby effectively reducing the risk of personnel accidents caused by the operator accidentally opening the nail gun. The probability of accidental injury; the setting of the pressure plate can guide the sliding of the first vertical plate, prevent the end of the first vertical plate from jumping and disengage from the shell of the nail gun, and prevent the deformation of the connecting plate; among them , the setting of the guide device can ensure that the push rod is lifted and lowered along the vertical direction, and can prevent the push rod from deflecting during the lifting process, so that the paddle can be better promoted to rotate. Therefore, the utility model provides a safety protection device for the switch of a nail gun with little chance of accidental injury to the operator.

As a preference, the guide means that a guide groove and a limit block are provided in the mounting seat, a guide plate is clamped in the guide groove, a limit opening is provided on the guide plate, and the limit opening and the side wall of the limit block can form a A channel for the push rod to slide; the push rod is provided with a first protrusion and a second protrusion extending outward at intervals along the length direction, the distance between the first protrusion and the second protrusion is greater than zero, and the guide plate is located at Between the first bump and the second bump. Through this preference, the push rod can be displaced on the connecting line between the channel and the through hole, providing a guiding function for the lifting of the push rod; in addition, the cooperation between the first protrusion, the second protrusion and the guide plate can play a role The position limiting function makes the displacement of the push rod within the gap between the first protrusion and the second protrusion.

As a preference, the reset device means that a compression spring is provided between the push rod and the mounting seat, one end of the compression spring is pressed against the first bump, and the other end is pressed against the lower end surface of the through hole on the mounting seat, And the compression spring is sleeved on the push rod. Through this optimization, the push rod and the connecting plate can be effectively driven to reversely move and reset.

As a preference, the pressing plate is provided with a chute for sliding the first vertical plate. Through this preference, the sliding movement of the first vertical plate can be well guided, so that the first vertical plate slides in the sliding groove.

As a preference, the pressure plate is connected with the nail gun housing through screws. The assembly and disassembly of the pressing plate can be facilitated by screws.

As a preference, the first vertical board, the horizontal board and the second vertical board are integrally formed. The integrity of the transmission of the connecting plate can be improved through integral molding, and the entire connecting plate can be attached to the outer wall of the nail gun housing through integral molding, so that the structure of the entire nail gun is more compact.

As a preference, the length direction of the first riser is consistent with the shooting direction of the nails on the nail gun. Through this optimization, it can be ensured that the first vertical plate can effectively drive the push rod to rise or fall, and the stroke of the first vertical plate can be directly fed back to the push rod, so that the push rod can also obtain a large stroke; The force on the vertical plate is more uniform, that is, the force fed back to the operator’s hand through the first vertical plate is parallel to the reaction force when the nail is shot out, so that the operator can hold the nail gun more firmly, which makes the operator in the nail gun. It is more stable and safer when using the nail gun.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is an enlarged view of the safety device of the present invention.

Fig. 3 is the rear view of the connecting plate in the utility model.

Fig. 4 is a structural schematic diagram of the connecting plate in the utility model.

Fig. 5 is a schematic structural view of the mounting seat in the present invention.

Fig. 6 is a structural schematic diagram of the push rod in the present invention.

Fig. 7 is a schematic diagram of the assembly of the connecting plate and the mounting seat in the present invention.

Fig. 8 is another schematic diagram of assembly of the connecting plate and the mounting seat in the present invention.

Fig. 9 is a schematic structural view of the medium pressure plate of the present invention.

Fig. 10 is another structural schematic diagram of the medium pressure plate of the present invention.

Fig. 11 is a schematic structural view of the guide plate in the present invention.

As shown in the figure: 1. Mounting seat, 2. Connecting plate, 2.1, First vertical plate, 2.2, Horizontal plate, 2.3, Second vertical plate, 3. Push rod, 4. Trigger, 5. Pick, 6, Bayonet, 7, card slot, 8, through hole, 9, first hinge point, 10, stop seat, 11, second hinge point, 12, pressure plate, 13, chute, 14, guide groove, 15, limit Block, 16, guide plate, 17, limit mouth, 18, the first bump, 19, the second bump.

detailed description

Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described.

Working principle: As shown in the figure, when the nailing port of the nail gun is close to the surface of the workpiece to be shot, the end of the first vertical plate 2.1 abuts against the surface of the workpiece and is pushed up, that is, the end of the first vertical plate 2.1 Can slide on the chute 13 in the pressure plate 12, so that the entire connecting plate 2 rises, and the upper end of the second vertical plate 2.2 pushes the push rod 3 to rise through the buckle 6 and the slot 7 at the lower end of the push rod 3; Further, the push rod 3 pushes one end of the paddle 5 to rise, that is, the paddle 5 rotates and rises around the second hinge point 11. During this process, the distance from the top surface of the paddle 5 to the nail gun switch in the retaining seat 10 becomes smaller Among them, during the rising process of the push rod 3, the compression spring will be squeezed and deformed, so that the compression spring reserves a certain amount of elastic force; then, the user pulls the trigger 4, so that the trigger 4 abuts against the edge of the stopper 10, and at the same time it can Drive the paddle 5 in the trigger 4 to contact the nail gun switch in the stopper 10 to drive the nail gun to shoot nails; it is equivalent to say that the contact point between the upper end of the push rod 3 and the lower surface of the paddle 5 is raised, that is After the fulcrum of the plectrum 5 becomes higher, the plectrum 5 can be turned to be in contact with the nail gun switch. Wherein, the displacement direction of the push rod 3 is always on the connection line between the channel formed by the limit port 17 and the limit block 15 and the through hole 8; moreover, the guide plate 16 is always located between the first bump 18 and the second bump 19 , making the overall structure more solid and reliable during the working process.

When the nailing port of the nail gun is disengaged from the surface of the workpiece, the push rod 3 and the connecting plate 2 can be driven to move in the opposite direction and reset due to the elastic force of the compression spring reserve, so that the plectrum 5 itself is also in contact with the shooting position in the retaining seat 10. The nail gun switch is disengaged, that is, the nail gun is turned off. To sum up, only when the nailing port of the nail gun is close to the surface of the workpiece so that the connecting plate 2 drives the push rod 3 to move and the paddle 5 is deformed, can the nail gun be turned on by the trigger 4 to shoot nails, otherwise It is impossible to open the nail gun for nail shooting, thereby improving the safety of the nail gun.

The safety protection device for the switch of the nail gun of the utility model comprises a mounting seat 1 fixedly connected with the shell of the nail gun, a connecting plate 2, a push rod 3, a trigger 4 and a paddle for opening or closing the switch inside the nail gun 5. The connecting plate 2 includes a first vertical plate 2.1 for contact with the workpiece to be shot, a horizontal plate 2.2 for transmission and a second vertical plate 2.3 for connecting with the lower end of the push rod 3; the upper end of the second vertical plate 2.3 There is a bayonet 6, and the lower end of the push rod 3 is provided with a slot 7 for connecting with the bayonet 6; the push rod 3 is slidably connected in the mounting seat 1, and the mounting seat 1 is provided with a hole for the upper end of the push rod 3 to pass through. The through hole 8; the trigger 4 is rotatably connected to the mounting base 1 through the first hinge point 9, and the nail gun housing is provided with a stopper 10 for the limit of the trigger 4; the paddle 5 is rotatably connected to the second hinge point 11 On the trigger 4, the second hinge point 11 is arranged on the trigger 4 away from the first hinge point 9; the through hole 8 on the mounting base 1 is located below the paddle 5, and the paddle 5 is located below the switch in the stopper 10; The pressing plate 12 is fixedly connected on the nail gun housing near the nail injection position, and the first vertical plate 2.1 is slidably connected between the pressing plate 12 and the nail gun housing; A guiding device for the rod 3 to move in the vertical direction; a reset device for the reverse movement of the push rod 3 is provided between the push rod 3 and the mounting seat 1 .

The guide device refers to that the mounting seat 1 is provided with a guide groove 14 and a limit block 15, and a guide plate 16 is clamped in the guide groove 14, and a limit opening 17 is provided on the guide plate 16, and the limit opening 17 and the limit block 15 The side wall constitutes a passage for the push rod 3 to slide; the push rod 3 is provided with a first protruding block 18 and a second protruding block 19 extending outward at intervals along the length direction, and the first protruding block 18 and the second protruding block The distance between 19 is greater than zero, and the guide plate 16 is located between the first bump 18 and the second bump 19 .

The reset device means that a compression spring is provided between the push rod 3 and the mounting seat 1, one end of the compression spring is pressed against the first bump 18, and the other end is pressed against the lower end surface of the through hole 8 on the mounting seat 1, And the stage clip is sleeved on the push rod 3 .

The pressing plate 12 is provided with a slide groove 13 for the sliding of the first vertical plate 2.1. Pressing the end of the first vertical plate 2.1 by the pressing plate 12 can prevent the first vertical plate 2.1 from warping and deforming during the sliding process.

The pressing plate 12 is connected with the nail gun housing through screws.

The first vertical plate 2.1, the horizontal plate 2.2 and the second vertical plate 2.3 are integrally formed.

The length direction of the first vertical board 2.1 is consistent with the nail shooting direction on the nail gun.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Any modifications, equivalent replacements and improvements made within the claims of the utility model shall be included in the protection scope of the utility model.

Claims (7)

1. the safety guard for ail gun switch, it is characterized in that: it comprises the mount pad (1), connecting plate (2), push rod (3), trigger (4), pressing plate (12) and the elastic plectrum (5) for opening or close switch in ail gun that are fixedly connected with ail gun shell, connecting plate (2) comprise for shot the starting stave (2.1) of absorption surface, for the transverse slat (2.2) of transmission and the second riser (2.3) for being connected with push rod (3) lower end; Second riser (2.3) upper end is provided with bayonet socket (6), and push rod (3) bottom is provided with the draw-in groove (7) for being connected with bayonet socket (6); Push rod (3) is slidably connected in mount pad (1), and mount pad (1) is provided with the through hole (8) passed for push rod (3) upper end; Trigger (4) is rotatably connected on mount pad (1) by the first pin joint (9), and ail gun housing is provided with for the spacing block seat (10) of trigger (4); Elastic plectrum (5) is rotatably connected on trigger (4) by the second pin joint (11), and the second pin joint (11) is arranged on the trigger (4) away from the first pin joint (9); Through hole (8) on mount pad (1) is positioned at the below of elastic plectrum (5), and elastic plectrum (5) is positioned at the below of the switch of block seat (10); Described pressing plate (12) is fixedly connected on ail gun housing on nail injection position, and starting stave (2.1) is slidably connected between pressing plate (12) and ail gun housing; The guider for push rod (3) vertically movement is provided with in described mount pad (1); Be provided with for push rod (3) heterodromous resetting means between described push rod (3) and mount pad (1).

2. the safety guard for ail gun switch according to claim 1, it is characterized in that: described guider refers in mount pad (1) and is provided with gathering sill (14) and limited block (15), guide plate (16) is connected with in gathering sill (14), guide plate (16) is provided with limited mouth (17), and limited mouth (17) and limited block (15) sidewall form the passage that push rod (3) can be supplied to slide; Described push rod (3) is arranged at intervals with outward extending first projection (18) and the second projection (19) along its length, distance between first projection (18) and the second projection (19) is greater than zero, and guide plate (16) is positioned between the first projection (18) and the second projection (19).

3. the safety guard for ail gun switch according to claim 2; it is characterized in that: described resetting means refers to; stage clip is provided with between push rod (3) and mount pad (1); stage clip one end and the first projection (18) push against; the lower surface of the other end and the upper through hole (8) of mount pad (1) pushes against, and compression spring sleeve is connected on push rod (3).

4. the safety guard for ail gun switch according to claim 1, is characterized in that: described pressing plate (12) is provided with the chute (13) slided for starting stave (2.1).

5. the safety guard for ail gun switch according to claim 1, is characterized in that: described pressing plate (12) is connected with ail gun housing by screw.

6. the safety guard for ail gun switch according to claim 1, is characterized in that: described starting stave (2.1), transverse slat (2.2) and the second riser (2.3) are one-body molded.

7. the safety guard for ail gun switch according to claim 1, is characterized in that: it is consistent that described starting stave (2.1) length direction and nail on ail gun penetrate direction.