Button connecting structure for preventing push rod of tool switch from being broken

Abstract

The utility model relates to a button connecting structure capable of preventing a push rod of a tool switch from being broken, which is characterized in that two reinforcing ribs are arranged on the top surface of a guide sheet, and two limiting sheets are arranged in a button to clamp the guide sheet and the two reinforcing ribs, so that the guide sheet and the two reinforcing ribs can share lateral force which is applied to the push rod and is vertical to the guide sheet; the two sides of the guide piece abut against the inner wall of the inner cavity of the button in a sliding mode respectively, so that the guide piece can share lateral force parallel to the guide piece and borne by the push rod, the lateral force borne by the push rod can be effectively reduced through combination of the guide piece and the push rod, the push rod is prevented from being broken in the pushing or falling process, and the service life of the push rod is prolonged. And a space is provided for further reducing the diameter of the push rod.

Description

Technical Field

[0001] The utility model belongs to the field of switch technology and specifically relates to a button connection structure for preventing the push rod of a tool switch from breaking. Background Art

[0002] The switch of an electric tool is usually composed of a housing, a push rod, an internal transmission module, an internal circuit and a button. The button is usually directly connected to the exposed end of the push rod. Pressing the button can push the push rod to slide on the switch housing, thereby driving the internal transmission module to move, turning the internal circuit on or off, and realizing the switch opening and closing function.

[0003] However, this switch structure places high demands on the push rod's strength. All lateral forces during the button pressing process need to be borne by the push rod. If the push rod is not strong enough, it may break, affecting the normal operation of the switch. Even though some switches have guide plates on the housing that insert into the button, these guide plates only serve to guide and limit the button's rotation and cannot share the lateral forces on the push rod. As a result, the push rod size of current power tool switches has always been relatively thick, which has begun to hinder the further miniaturization of tool switches.

[0004] Based on the above technical problems, it is necessary to provide a button connection structure that prevents the push rod of the tool switch from breaking, so as to reduce the diameter of the push rod. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a button connection structure to prevent the push rod of the tool switch from breaking, and solve the problem of the current tool switch push rod breaking.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a button connection structure for preventing the push rod of the tool switch from breaking, comprising a switch housing, a push rod movably plugged into the switch housing, and a button, one end of the push rod is inserted into the switch housing, and the other end extends out of the switch housing, the button is connected to one end of the push rod outside the switch housing, the switch housing is also integrally formed with a guide piece parallel to the axial direction of the push rod, the guide piece is located on one side of the push rod, the button is provided with a socket that cooperates with one end of the push rod and a cavity for accommodating the insertion of the guide piece, the guide piece is provided in the interior of the button The two side edges of the guide piece slide in contact with the inner walls of the two sides of the cavity respectively. The guide piece is used for guiding when pressing and resetting the button, and at the same time limits the rotation of the button. Two reinforcing ribs are vertically connected to the top surface of the guide piece. The two reinforcing ribs are arranged on both sides of the push rod and are parallel to the axial direction of the push rod. Two limit pieces are arranged up and down and are parallel to the guide piece inside the button. The guide piece and the two reinforcing ribs are inserted between the two limit pieces. The lower surface of the guide piece slides in contact with the upper surface of the limit piece located below, and the top surfaces of the two reinforcing ribs slide in contact with the lower surface of the limit piece located above.

[0007] As a preferred solution, the middle part of the guide piece protrudes upward to form a boss with the same height as the reinforcing rib, the top surface of the boss is in contact with the lower surface of the limiting piece located above, and the boss is located between the two reinforcing ribs and is spaced apart from each other.

[0008] As a preferred solution, a slot is provided in the middle of the boss, which extends from one end of the boss where the button is inserted to one end of the switch housing. The depth of the slot is 0.4 to 0.6 times the length of the guide piece. A limiting column is vertically arranged inside the button to cooperate with the slot, and the top of the limiting column is fixedly connected to the limiting piece located above.

[0009] As a preferred solution, the lower end of the boss is integrally formed with two connecting plates symmetrically arranged in an "eight" shape, the upper ends of the connecting plates are respectively connected to the edges of the slots, and the lower ends extend to the bottom of the limiting plate. A notch is provided in the middle of the limiting plate below for the connecting plate to pass through.

[0010] As a preferred solution, the lower edges of the two connecting plates are respectively connected with reinforcing plates extending outward and parallel to the guide plates. The spacing between the reinforcing plates and the guide plates is equal to the thickness of the limiting plates located below. The limiting plates located below are inserted between the guide plates and the two reinforcing plates.

[0011] As a preferred solution, the opening end of the slot is in a trumpet shape.

[0012] The beneficial effect of the present invention is as follows: the present invention arranges two reinforcing ribs on the top surface of the guide piece, and arranges two limiting pieces inside the button to clamp the guide piece and the two reinforcing ribs, so that the guide piece and the two reinforcing ribs can share the lateral force perpendicular to the guide piece exerted on the push rod, and the two sides of the guide piece are respectively in sliding contact with the inner wall of the cavity inside the button, so that the guide piece can share the lateral force parallel to the guide piece exerted on the push rod. Combined with the two, the button connection structure described in the present invention can effectively reduce the lateral force exerted on the push rod, thereby preventing the push rod from being broken during pushing or falling, and also provides space for further reducing the diameter of the push rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0014] Figure 1 This is an exploded view of a specific structure of the utility model;

[0015] Figure 2 This is a schematic diagram of a specific connection structure between the switch housing and the guide piece;

[0016] Figure 3 It is a specific structural diagram of a button;

[0017] Figures 1 to 3 Middle: 1. Switch housing; 2. Push rod; 3. Button; 4. Guide plate; 5. Socket; 6. Cavity; 7. Reinforcement rib; 8. Limiting plate; 9. Boss; 10. Slot; 11. Limiting column; 12. Connecting plate; 13. Notch; 14. Reinforcement plate. DETAILED DESCRIPTION

[0018] The specific implementation scheme of the present utility model is described in detail below with reference to the accompanying drawings.

[0019] like Figures 1 to 3 The button connection structure shown in the figure prevents the push rod of the tool switch from breaking, comprising a switch housing 1, a push rod 2 movably plugged into the switch housing 1, and a button 3. One end of the push rod 2 is inserted into the switch housing 1, and the other end extends out of the switch housing 1. The button 3 is connected to one end of the push rod 2 outside the switch housing 1. It is characterized in that a guide piece 4 parallel to the axial direction of the push rod 2 is integrally formed on the switch housing 1. The guide piece 4 is located on one side of the push rod 2. The button 3 is provided with a socket 5 that cooperates with one end of the push rod 2 and a cavity 6 for accommodating the insertion of the guide piece 4. The edges of the guide piece 4 on both sides are The guide piece 4 is in sliding contact with the inner walls on both sides of the cavity 6, and is used for guiding the button 3 when pressing and resetting, and at the same time limiting the rotation of the button 3. Two reinforcing ribs 7 are vertically connected to the top surface of the guide piece 4, and the two reinforcing ribs 7 are arranged on both sides of the push rod 2 and are parallel to the axial direction of the push rod 2. Two limit pieces 8 are arranged up and down and are parallel to the guide piece 4 inside the button 3. The guide piece 4 and the two reinforcing ribs 7 are inserted between the two limit pieces 8. The lower surface of the guide piece 4 is in sliding contact with the upper surface of the limit piece 8 located below, and the top surfaces of the two reinforcing ribs 7 are in sliding contact with the lower surface of the limit piece 8 located above.

[0020] Two reinforcing ribs 7 are provided on the top surface of the guide piece 4, and two limiting pieces 8 are provided inside the button 3 to clamp the guide piece 4 and the two reinforcing ribs 7, so that the guide piece 4 and the two reinforcing ribs 7 can share the lateral force perpendicular to the guide piece 4 exerted on the push rod 2, and the two sides of the guide piece 4 are respectively in sliding contact with the inner wall of the cavity inside the button 3, so that the guide piece 4 can share the lateral force parallel to the guide piece 4 exerted on the push rod 2. Combined with the two, the button connection structure described in this embodiment can effectively reduce the lateral force exerted on the push rod 2, thereby preventing the push rod 2 from being broken during pushing or falling.

[0021] In this embodiment, a boss 9 is preferably formed in the middle of the guide piece 4, protruding upward and having a height equal to that of the reinforcing rib 7. The top surface of the boss 9 abuts against the lower surface of the upper limiting piece 8. The boss 9 is located between the two reinforcing ribs 7 and spaced apart from each other. The boss 9 further expands the load-bearing area of ​​the upper limiting piece 8, thereby enabling the upper limiting piece 8 to withstand greater thrust without breaking.

[0022] This embodiment also preferably has a slot 10 formed in the middle of the boss 9. The slot 10 extends from the end of the boss 9 into which the button 3 is inserted to one end of the switch housing 1. The depth of the slot 10 is 0.5 times the length of the guide piece 4. A limiting post 11 is vertically provided inside the button 3 to cooperate with the slot 10. The top end of the limiting post 11 is fixedly connected to the limiting piece 8 located above. The lower end of the limiting post 11 extends to the outer wall of the positioning post 15 in which the insertion hole 5 is provided. The positioning post 15 is integrally formed with the button 3. The provision of the limiting post 11 can further enhance the strength of the limiting piece 8 located above. The limiting post 11 passes through the limiting piece 8 located below.

[0023] The depth of the slot 10 refers to the direction in which the slot 10 extends toward the switch housing 1. The depth of the slot 10 can be adjusted within a range of 0.4 to 0.6 times the length of the guide piece 4 (inclusive).

[0024] This embodiment further forms two connecting plates 12 symmetrically arranged in an "eight" shape at the lower end of the boss 9. The upper ends of the connecting plates 12 are respectively connected to the edges of the slots 10, and the lower ends extend to the bottom of the limiting plate 8. A notch 13 is provided in the middle of the limiting plate 8 below for the connecting plate 12 to pass through.

[0025] The arrangement of the two connecting plates 12 further provides support for the lateral force inclined to the reinforcing ribs 7 and the guide plates 4 , thereby further sharing the lateral force exerted on the push rod 2 .

[0026] In order to further improve the strength of the guide piece 4, this embodiment further connects the lower edges of the two connecting plates 12 with reinforcing pieces 14 extending outward and parallel to the guide piece 4. The spacing between the reinforcing piece 14 and the guide piece 4 is equal to the thickness of the limiting piece 8 located below. The limiting piece 8 located below is inserted between the guide piece 4 and the two reinforcing pieces 14.

[0027] The two reinforcing plates 14 are used to share the force parallel to the guide plate 4 on the guide plate 4 and the push rod 2, and further share the lateral force on the push rod 2, thereby ensuring the safety of the push rod 2.

[0028] In order to facilitate assembly, the opening end of the slot 10 in this embodiment is in a bell-mouth shape.

[0029] The lateral force in this embodiment refers to a force that forms a certain angle with the axial direction of the push rod.

[0030] The working principle of the present invention is as follows: the present invention provides two reinforcing ribs 7 on the top surface of the guide piece 4, and provides two limiting pieces 8 inside the button 3 to clamp the guide piece 4 and the two reinforcing ribs 7, so that the guide piece 4 and the two reinforcing ribs 7 can share the lateral force perpendicular to the guide piece 4 exerted on the push rod 2, and the two sides of the guide piece 4 are respectively in sliding contact with the inner wall of the cavity inside the button 3, so that the guide piece 4 can share the lateral force parallel to the guide piece 4 exerted on the push rod 2. Combined with the two, the button connection structure described in the present invention can effectively reduce the lateral force exerted on the push rod 2, thereby preventing the push rod 2 from being broken during pushing or falling, and also providing space for further reducing the diameter of the push rod.

[0031] The additional boss 9, connecting plate 12 and reinforcing sheet 14 of the present invention further share the lateral force on the push rod 2, ensuring the safe use of the push rod 2. The additional limiting column 11 increases the strength of the button 3, making the internal structure of the button 3 stable and reliable.

[0032] The above embodiments are merely illustrative of the principles and effects of the present invention, as well as some embodiments of its application, and are not intended to limit the present invention. It should be noted that a person skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A button connection structure for preventing a push rod of a tool switch from breaking, comprising a switch housing (1), a push rod (2) movably plugged into the switch housing (1), and a button (3), wherein one end of the push rod (2) is inserted into the switch housing (1) and the other end extends out of the switch housing (1), and the button (3) is connected to one end of the push rod (2) outside the switch housing (1), characterized in that: The switch housing (1) is also integrally formed with a guide piece (4) parallel to the axial direction of the push rod (2), and the guide piece (4) is located on one side of the push rod (2). The button (3) is provided with a socket (5) that matches one end of the push rod (2) and a cavity (6) that can accommodate the guide piece (4) to be inserted. The two side edges of the guide piece (4) are respectively in sliding contact with the inner walls of the two sides of the cavity (6). The guide piece (4) is used for guiding the button (3) when it is pressed and reset, and at the same time limits the rotation of the button (3). The guide piece (4) ) is vertically connected to the top surface of the push rod (2), and the two reinforcing ribs (7) are arranged on both sides of the push rod (2) and are parallel to the axial direction of the push rod (2). Two limit plates (8) arranged up and down and both parallel to the guide plate (4) are provided inside the button (3). The guide plate (4) and the two reinforcing ribs (7) are inserted between the two limit plates (8). The lower surface of the guide plate (4) is in sliding contact with the upper surface of the limit plate (8) located below, and the top surfaces of the two reinforcing ribs (7) are in sliding contact with the lower surface of the limit plate (8) located above.

2. The button connection structure for preventing the push rod of a tool switch from breaking according to claim 1, characterized in that: The middle portion of the guide piece (4) protrudes upward to form a boss (9) having a height consistent with that of the reinforcing rib (7). The top surface of the boss (9) is in contact with the lower surface of the limiting piece (8) located above. The boss (9) is located between the two reinforcing ribs (7) and is spaced apart from each other.

3. The button connection structure for preventing the push rod of a tool switch from breaking according to claim 2, characterized in that: A slot (10) is provided in the middle of the boss (9), and the slot (10) extends from one end of the boss (9) into which the button (3) is inserted to one end of the switch housing (1), and the depth of the slot (10) is 0.4 to 0.6 times the length of the guide piece (4). A limiting column (11) is vertically provided inside the button (3) and is matched with the slot (10), and the top end of the limiting column (11) is fixedly connected to the limiting piece (8) located above.

4. The button connection structure for preventing the push rod of a tool switch from breaking according to claim 3, characterized in that: The lower end of the boss (9) is integrally formed with two connecting plates (12) symmetrically arranged in an "eight" shape. The upper ends of the connecting plates (12) are respectively connected to the edges of the slots (10), and the lower ends extend below the limiting plates (8). A notch (13) is provided in the middle of the limiting plates (8) located below for the connecting plates (12) to pass through.

5. The button connection structure for preventing the push rod of a tool switch from breaking according to claim 4, characterized in that: The lower edges of the two connecting plates (12) are respectively connected with reinforcing plates (14) extending outward and parallel to the guide plates (4), the spacing between the reinforcing plates (14) and the guide plates (4) is equal to the thickness of the limiting plates (8) located below, and the limiting plates (8) located below are inserted between the guide plates (4) and the two reinforcing plates (14).

6. The button connection structure for preventing the push rod of a tool switch from breaking according to claim 3, characterized in that: The opening end of the slot (10) is in a trumpet shape.

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