Push type endless speed regulating switch and blender

Abstract

The utility model relates to the technical field of blender, especially point to a kind of press type stepless speed regulation switch and blender, including first casing, the first casing is shaped with first cavity and second cavity in, second cavity is equipped with the strong electric switch movable pin assembly and strong electric switch fixed pin of corresponding arrangement, reset spring and resistance sheet are equipped in first cavity;Switch button, the switch button first end is located outside first casing, switch button second end sliding is located in first casing, switch button second end is equipped with the transmission arm of corresponding arrangement with the strong electric switch movable pin assembly and the resistance connector of sliding arrangement with resistance sheet, the both ends of reset spring abut on switch button second end and first cavity inner wall;When pressing switch button, strong electric switch movable pin and strong electric switch fixed pin corresponding conduction, and resistance connector along resistance sheet sliding to different positions.The strong electric and potentiometer are controlled by same switch button, easy to operate, and no cumulative tolerance.

Description

Technical Field

[0001] This utility model relates to the field of mixer technology, specifically to a push-button stepless speed control switch and a mixer. Background Technology

[0002] Currently, the existing push-type stepless speed-regulating mixers on the market use a high-voltage switch and a potentiometer to achieve push-to-regulate speed. In this process, not only is the assembly efficiency low and the assembly error too large, but the speed regulation consistency is uneven. At the same time, the assembly is complicated and there are many parts, resulting in a high total cost. Utility model patent CN210810655U discloses a sliding food processor speed control component, including a housing. Inside the housing are a switch bracket, a PCB board, and a drive device. The PCB board has a sliding variable resistor, corresponding switch springs and contacts, and corresponding acceleration springs and contacts. The sliding variable resistor, switch springs, and switches form a first circuit, and the acceleration springs and contacts form a second circuit. The second circuit is connected in parallel across the sliding variable resistor. The first circuit is connected to the drive device. The switch bracket has an acceleration button and a speed control button. The acceleration button corresponds to the acceleration springs via a selector switch and controls the opening and closing of the acceleration springs and contacts. The speed control button drives the sliding variable resistor to slide and controls the opening and closing of the switch springs and contacts. This prior art has a complex structure, large size, and high cost; furthermore, controlling the first circuit (equivalent to a potentiometer) and the second circuit (equivalent to a high-voltage switch) separately via the acceleration button and speed control button results in large tolerances and inconvenient operation.

[0003] Therefore, there is still room for improvement and development in existing technologies. Utility Model Content

[0004] To address the problems of existing technologies, this utility model provides a push-button stepless speed control switch and a mixer. Through mechanical transmission, a high-voltage switch and a potentiometer are integrated into one unit. The switch button reciprocates under the action of a return spring and external force. As the switch button moves continuously, the resistance connector continuously changes the resistance value, achieving the purpose of push-button stepless speed control. The high-voltage switch and the potentiometer are controlled by the same switch button, which is convenient to operate, has no cumulative tolerance, and is small in size and low in cost.

[0005] To achieve the above objectives, the technical solution applied in this utility model is as follows: A push-button stepless speed control switch includes a first housing, within which a first cavity and a second cavity are formed. The second cavity contains a correspondingly configured high-voltage switch movable pin assembly and a high-voltage switch fixed pin. The first cavity contains a reset spring and a resistor. A switch button has a first end located outside the first housing and a second end slidably located inside the first housing. The second end of the switch button has a transmission arm corresponding to the high-voltage switch movable pin assembly and a resistor connector slidably disposed with the resistor. The two ends of the reset spring abut against the second end of the switch button and the inner wall of the first cavity. When the switch button is pressed, the high-voltage switch movable pin and the high-voltage switch fixed pin are connected, and the resistor connector slides along the resistor to different positions. In this configuration, initially, the movable pin assembly of the high-voltage switch and the fixed pin of the high-voltage switch are disconnected, and the resistor connector is located at the upper end of the resistor plate. When the switch button is pressed, the movable pin assembly and the fixed pin of the high-voltage switch become conductive, and the high-voltage switch is activated. Simultaneously, the resistor connector slides along the resistor plate to different positions, changing the resistance value. The high-voltage switch and potentiometer are controlled by the same switch button, which is convenient to operate, has no cumulative tolerance, is small in size, and low in cost. This utility model integrates the high-voltage switch and potentiometer into one unit through mechanical transmission. The switch button reciprocates under the action of the return spring and external force, and the resistor connector continuously changes its resistance value as the switch button moves, achieving stepless speed regulation by pressing.

[0006] According to the above scheme, the high-voltage switch movable pin assembly includes an actuating torsion spring, a spring-loaded connecting rod, and a high-voltage switch pin. The high-voltage switch pin is fixed in the second cavity, and the spring-loaded connecting rod is rotatably mounted on the high-voltage switch pin and electrically connected to it. The actuating torsion spring is located between the first end of the spring-loaded connecting rod and the inner wall of the second cavity. The second end of the spring-loaded connecting rod is provided with a moving contact, and the fixed pin of the high-voltage switch is provided with a stationary contact. The moving contact and the stationary contact are correspondingly arranged. The transmission arm and the spring-loaded connecting rod are correspondingly arranged. Initially, with this setup, the transmission arm is positioned at the upper end of the electric linkage, the actuating torsion spring is in an energy-storing state, and the resistor connector is fixed to the switch button. Simultaneously, the high-voltage linkage and the high-voltage switch pin are electrically connected, and the high-voltage linkage can rotate on the high-voltage switch pin. When the switch button moves downwards under external pressure, the high-voltage linkage loses the force of the transmission arm. At this point, the actuating torsion spring activates, releasing its elasticity and causing the high-voltage linkage to rotate and connect with the fixed pin of the high-voltage switch, thus turning on the high-voltage switch. As the switch button continues to move downwards, the resistor connector connects at different points on the resistor plate, controlling the resistance value and achieving the press-to-adjust speed function. When the pressing force is lost, the switch button is reset by the elasticity of the return spring, and simultaneously, the transmission arm drives the high-voltage linkage to separate from the fixed pin of the high-voltage switch, thus de-energizing the circuit.

[0007] According to the above scheme, the first end of the spring-electrode link is provided with a transmission block, and the transmission arm and transmission block are correspondingly arranged. With this arrangement, initially, the transmission arm and transmission block abut and limit the upper end of the spring-electrode link, causing the lower end of the spring-electrode link to be in a raised state initially, separating it from the fixed pin of the high-voltage switch; when the transmission arm moves downward, the transmission arm separates from the transmission block, causing the high-voltage link to lose the force of the transmission arm, allowing the high-voltage link to rotate and conduct electricity with the fixed pin of the high-voltage switch; when the transmission arm returns to the upper end of the spring-electrode link, the transmission arm abuts and limits the transmission block again.

[0008] According to the above scheme, the high-voltage switch pin is provided with a first connecting post, and the spring-loaded connecting rod is provided with a second connecting post, the second connecting post being rotatably mounted on the first connecting post. With this configuration, after assembly, the spring-loaded connecting rod can rotate around the axis of the first connecting post.

[0009] According to the above scheme, a partition is provided between the first cavity and the second cavity. This arrangement facilitates the assembly of the reset spring and the resistor in the first cavity, and the assembly of the movable pin and the fixed pin of the high-voltage switch in the second cavity, without interference between the potentiometer and the high-voltage switch.

[0010] According to the above scheme, the first housing includes a lower housing and an upper housing, which are connected by a locking mechanism; the lower housing is provided with a locking block, and the upper housing is provided with a locking hole, which are connected by a locking mechanism. This arrangement facilitates the assembly of the lower housing and the upper housing.

[0011] The mixer described in this utility model includes a second housing and the aforementioned push-button stepless speed control switch. The second housing has a cavity formed within it, containing a circuit board and a motor that are fixedly and electrically connected. The push-button stepless speed control switch is fixedly and electrically connected to the circuit board. A button is movably mounted on the second housing, abutting against the first end of the switch button of the push-button stepless speed control switch. This configuration integrates the circuit board, motor, and push-button stepless speed control switch into a single electrical system, housed within the cavity. The button is then mounted on the second housing. Pressing the button activates the switch. With continuous movement of the switch button, the resistance connector continuously changes its resistance value, feeding back the electrical signal to the circuit board to control the motor, thus achieving push-button stepless speed control.

[0012] According to the above scheme, the second housing includes a top cover, a front shell, a rear shell, and an outer shell. The front shell and the rear shell are fixedly connected, the top cover is fixed to the upper end of the front shell and the rear shell, and the outer shell is fixedly fitted onto the lower end of the front shell and the rear shell. With this configuration, during assembly, the power system is installed in the rear shell, the button is then assembled on the front shell, and the front shell and the rear shell are fixed so that the button abuts against the first end of the push-button stepless speed control switch. Finally, the top cover and the outer shell are assembled at the upper and lower ends of the front shell and the rear shell to form a mixer.

[0013] According to the above scheme, the outer shell is fixed to the lower ends of the front and rear shells by limiting rings. This configuration uses the limiting rings to restrict the outer shell and prevent it from detaching.

[0014] The beneficial effects of this utility model are: This invention integrates a high-voltage switch and a potentiometer into one unit through mechanical transmission. The switch button reciprocates under the action of a reset spring and external force. As the switch button moves continuously, the resistance connector changes its resistance value, achieving stepless speed regulation via a push-button design. The high-voltage switch and potentiometer are controlled by the same switch button, making operation convenient, eliminating cumulative tolerances, and resulting in a small size and low cost. Attached Figure Description

[0015] Figure 1 This is an exploded view of a push-button stepless speed control switch according to this utility model; Figure 2 This is an internal view of the push-button stepless speed control switch of this utility model; Figure 3 yes Figure 2 Sectional view at position AA; Figure 4 yes Figure 2 Sectional view of the BB position; Figure 5 This is an exploded view of a mixer according to this utility model; Figure 6 This is a partial view of a mixer according to the present invention; Figure 7 yes Figure 6 Enlarged view of position C.

[0016] In the picture: 1. Top cover; 2. Front shell; 3. Button; 4. Decorative piece; 5. Rear shell; 6. Outer shell; 7. Limiting ring; 8. Circuit board; 9. Motor; 10. Press-type stepless speed control switch; 100. Return spring; 101. Lower shell; 102. Switch button; 103. Resistor connector; 104. Resistor piece; 105. Actuating torsion spring; 106. Spring-loaded connecting rod; 107. High-voltage switch pin; 108. High-voltage switch fixing pin; 109. Upper shell; 110. Transmission arm; 111. First cavity; 112. Second cavity; 113. Locking block; 114. Locking hole; 115. First connecting post; 116. Second connecting post; 117. Partition; 118. Transmission block. Detailed Implementation

[0017] The technical solution of this utility model will be described below with reference to the accompanying drawings and embodiments.

[0018] like Figures 1 to 4As shown, the push-button stepless speed control switch of this utility model includes a first housing, within which a first cavity 111 and a second cavity 112 are formed. The second cavity 112 contains a correspondingly arranged high-voltage switch movable pin assembly and a high-voltage switch fixed pin 108. The first cavity 111 contains a reset spring 100 and a resistor sheet 104. A switch button 102 is also included, with its first end located outside the first housing and its second end slidably located inside the first housing. The second end of the switch button 102 has a transmission arm 110 corresponding to the high-voltage switch movable pin assembly and a resistor connector 103 slidably disposed with the resistor sheet 104. The two ends of the reset spring 100 abut against the second end of the switch button 102 and the inner wall of the first cavity 111. When the switch button 102 is pressed, the high-voltage switch movable pin assembly and the high-voltage switch fixed pin 108 are connected, and the resistor connector 103 slides along the resistor sheet 104 to different positions.

[0019] Among them, the resistor connector 103 and the resistor piece 104 together form a potentiometer, and the active pin of the high-voltage switch and the fixed pin of the high-voltage switch 108 together form a high-voltage switch. With this setup, in the initial state, such as Figures 2 to 4 As shown, the movable pin assembly of the high-voltage switch is disconnected from the fixed pin 108 of the high-voltage switch, and the resistor connector 103 is located at the upper end of the resistor piece 104. When the switch button 102 is pressed, the movable pin of the high-voltage switch and the fixed pin 108 of the high-voltage switch are connected, and the high-voltage switch is activated. At the same time, the resistor connector 103 slides along the resistor piece 104 to different positions, and the resistance value changes. The high-voltage switch and the potentiometer are controlled by the same switch button 102, which is convenient to operate, has no cumulative tolerance, small size, and low cost.

[0020] This utility model integrates a high-voltage switch and a potentiometer into one unit through mechanical structure transmission; the switch button 12 achieves reciprocating motion under the action of the reset spring 100 and external force, and under the continuous movement of the switch button 12, the resistance connector 13 continuously changes the resistance value to achieve the purpose of stepless speed regulation by pressing.

[0021] Furthermore, the active pin assembly of the high-voltage switch includes an actuating torsion spring 105, a spring-loaded connecting rod 106, and a high-voltage switch pin 107. The high-voltage switch pin 107 is fixed inside the second cavity 112. The spring-loaded connecting rod 106 is rotatably mounted on the high-voltage switch pin 107, and the spring-loaded connecting rod 106 and the high-voltage switch pin 107 are electrically connected. The actuating torsion spring 105 is located between the first end of the spring-loaded connecting rod 106 and the inner wall of the second cavity 112. The second end of the spring-loaded connecting rod 106 is provided with a moving contact, and the fixed pin 108 of the high-voltage switch is provided with a stationary contact. The moving contact and the stationary contact are correspondingly arranged. The transmission arm 110 and the spring-loaded connecting rod 106 are correspondingly arranged.

[0022] The spring force of the actuating torsion spring 105 tends to make the moving contact on the spring-electric linkage 106 conduct with the stationary contact on the fixed pin 108 of the high-voltage switch.

[0023] This setting, such as Figures 2 to 4 As shown, initially, the transmission arm 110 is located at the upper end of the spring-electric connecting rod 106, the actuating torsion spring 105 is in an energy storage state, the resistor connector 103 is fixed to the switch button 102, and at the same time, the high-voltage connecting rod 106 and the high-voltage switch pin 107 form an electrical connection, and the high-voltage connecting rod 106 can rotate on the high-voltage switch pin 107; due to the downward movement of the switch button 102 under the action of external force, the high-voltage connecting rod 106 loses the force of the transmission arm 110, at which time the actuating torsion spring 105 plays its role, and the actuating torsion spring 105... 05. Release the spring force to rotate the high-voltage connecting rod 106 and make it conductive with the fixed pin 108 of the high-voltage switch, thereby turning on the high-voltage switch; as the switch button 102 continues to move downward, the resistor connector 103 forms a connection at different points on the resistor piece 104 to control the resistance value and realize the press speed regulation function; when the pressing force is lost, the switch button 102 is reset under the elastic force of the reset spring 100, and at the same time, the high-voltage connecting rod 106 is driven to separate from the fixed pin 108 of the high-voltage switch through the transmission arm 110 to realize the power cut-off.

[0024] When the transmission arm 110 is located at the upper end of the spring-electric link 106, the upper end of the spring-electric link 106 is limited, causing the lower end of the spring-electric link 106 to initially tilt up and separate from the fixed pin 108 of the high-voltage switch. When the transmission arm 110 moves downward, the high-voltage link 106 loses the limitation of the transmission arm 110 and rotates under the rebound force of the action torsion spring 105, connecting with the fixed pin 108 of the high-voltage switch. During the continued downward movement of the switch button 102, the high-voltage link 106 and the fixed pin 108 of the high-voltage switch are always in a connected state. Only when the transmission arm 110 returns to the upper end of the spring-electric link 106 is the upper end of the spring-electric link 106 limited again, causing the lower end of the spring-electric link 106 to tilt up and separate from the fixed pin 108 of the high-voltage switch.

[0025] Furthermore, the first end of the elastic connecting rod 106 is provided with a transmission block 118, and the transmission arm 110 and the transmission block 118 are correspondingly arranged. This arrangement, as... Figures 2 to 4As shown, initially, the transmission arm 110 abuts against the transmission block 118, limiting the upper end of the spring-loaded connecting rod 106, so that the lower end of the spring-loaded connecting rod 106 is initially in a raised state and separated from the fixed pin 108 of the high-voltage switch; when the transmission arm 110 moves downward, the transmission arm 110 separates from the transmission block 118, causing the high-voltage connecting rod 106 to lose the force of the transmission arm 110, causing the high-voltage connecting rod 106 to rotate and conduct to the fixed pin 108 of the high-voltage switch; when the transmission arm 110 returns to the upper end of the spring-loaded connecting rod 106, the transmission arm 110 abuts against the transmission block 118 again.

[0026] Furthermore, the high-voltage switch pin 107 is provided with a first connecting post 115, and the spring-loaded connecting rod 106 is provided with a second connecting post 116, which is rotatably mounted on the first connecting post 115. With this configuration, after assembly, the spring-loaded connecting rod 106 can rotate around the axis of the first connecting post 115.

[0027] The second connecting post 116 is preferably located at the first end of the elastic connecting rod 106.

[0028] Furthermore, a partition 117 is provided between the first cavity 111 and the second cavity 112. This arrangement facilitates the assembly of the reset spring 100 and the resistor 104 in the first cavity 111, and the assembly of the active pin and the fixed pin 108 of the high-voltage switch in the second cavity 112, without the potentiometer and the high-voltage switch interfering with each other.

[0029] Furthermore, the first housing includes a lower housing 101 and an upper housing 109, which are interlocked. The lower housing 101 is provided with a locking block 113, and the upper housing 109 is provided with a locking hole 114, which are interlocked. This arrangement facilitates the assembly of the lower housing 101 and the upper housing 109.

[0030] like Figures 5 to 7As shown, a mixer includes a second housing and the aforementioned push-button stepless speed control switch 10. The second housing has a cavity formed within it, containing a circuit board 8 and a motor 9 that are fixedly and electrically connected. The push-button stepless speed control switch 10 is fixedly and electrically connected to the circuit board 8. A button 3 is movably mounted on the second housing, and the button 3 abuts against the first end of the switch button 102 of the push-button stepless speed control switch 10. This configuration integrates the circuit board 8, motor 9, and push-button stepless speed control switch 10 into a single electrical system (wherein, the potentiometer and high-voltage switch are first integrated into a single push-button stepless speed control switch 10, ensuring consistent speed control). These components are installed in the cavity (making assembly easier), and the button 3 is then mounted on the second housing. Pressing the button 3 activates the switch button 102. With the continuous movement of the switch button 102, the resistance connector 103 continuously changes its resistance value, feeding back the electrical signal to the circuit board 8 to control the motor 9, thus achieving push-button stepless speed control.

[0031] Specifically, when the resistor connector 103 is located at the top of the resistor piece 104, the resistance value is at its maximum (or minimum), and the motor 9 speed is at its minimum (or maximum). When the resistor connector 103 is located at the bottom of the resistor piece 104, the resistance value is at its minimum (or maximum), and the motor 9 speed is at its maximum (or minimum).

[0032] Furthermore, the second housing includes a top cover 1, a front shell 2, a rear shell 5, and an outer shell 6. The front shell 2 and the rear shell 5 are fixedly connected, the top cover 1 is fixed to the upper end of the front shell 2 and the rear shell 5, and the outer shell 6 is fixedly fitted onto the lower end of the front shell 2 and the rear shell 5. With this configuration, during assembly, the power system is installed in the rear shell 5, the button 3 is assembled on the front shell 2, and then the front shell 2 and the rear shell 5 are fixed so that the button 3 abuts against the first end of the switch button 102 of the push-button stepless speed control switch 10. Finally, the top cover 1 and the outer shell 6 are assembled at the upper and lower ends of the front shell 2 and the rear shell 5 to form a mixer.

[0033] Furthermore, the outer shell 6 is fixed to the lower ends of the front shell 2 and the rear shell 5 by a limiting ring 7. This arrangement limits the outer shell 6 by the limiting ring 7, preventing the outer shell 6 from coming off.

[0034] Furthermore, the front cover 2 is provided with a decorative piece 4 corresponding to the button 3. This design not only makes the button 3 more aesthetically pleasing but also reminds the user of its location.

[0035] Among them, button 3 is limited by the snap-fit ​​to the second housing and will not come out of the second housing. After assembly, button 3 abuts against the first end of switch button 102, and the second end of switch button 102 abuts against the reset spring 100. The elastic force of reset spring 100 has the tendency to keep the first end of switch button 102 and button 3 in contact.

[0036] The embodiments of the present utility model have been described above with reference to the accompanying drawings. However, the present utility model is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present utility model without departing from the spirit and scope of the claims, and all of these forms are within the scope of protection of the present utility model.

Claims

1. A push-type endless speed regulating switch characterized by, include: The first housing has a first cavity (111) and a second cavity (112) formed inside it. The second cavity (112) is provided with a corresponding high-voltage switch movable pin assembly and a high-voltage switch fixed pin (108). The first cavity (111) is provided with a reset spring (100) and a resistor (104). A switch button (102) has a first end located outside the first housing and a second end slidably located inside the first housing. The second end of the switch button (102) is provided with a transmission arm (110) corresponding to the active pin assembly of the high-voltage switch and a resistor connector (103) slidably disposed with the resistor sheet (104). The two ends of the reset spring (100) abut against the second end of the switch button (102) and the inner wall of the first cavity (111). When the switch button (102) is pressed, the active pin assembly of the high-voltage switch is connected to the fixed pin (108) of the high-voltage switch, and the resistor connector (103) slides along the resistor piece (104) to different positions.

2. A press-type endless speed regulating switch according to claim 1, characterized in that: The active pin assembly of the high-voltage switch includes an actuating torsion spring (105), a spring-loaded connecting rod (106), and a high-voltage switch pin (107). The high-voltage switch pin (107) is fixed inside the second cavity (112). The spring-loaded connecting rod (106) is rotatably mounted on the high-voltage switch pin (107), and the spring-loaded connecting rod (106) and the high-voltage switch pin (107) are electrically connected. The actuating torsion spring (105) is located between the first end of the spring-loaded connecting rod (106) and the inner wall of the second cavity (112). The second end of the spring-loaded connecting rod (106) is provided with a moving contact. The fixed pin (108) of the high-voltage switch is provided with a stationary contact. The moving contact and the stationary contact are correspondingly arranged. The transmission arm (110) is correspondingly arranged with the spring-loaded connecting rod (106).

3. A push-button type stepless speed control switch according to claim 2, characterized in that: The first end of the elastic link (106) is provided with a transmission block (118), and the transmission arm (110) and the transmission block (118) are respectively arranged.

4. A push-button stepless speed control switch according to claim 2, characterized in that: The high-voltage switch pin (107) is provided with a first connecting post (115), and the spring-loaded connecting rod (106) is provided with a second connecting post (116). The second connecting post (116) is rotatably mounted on the first connecting post (115).

5. A push-button type stepless speed control switch according to claim 2, characterized in that: A partition (117) is provided between the first cavity (111) and the second cavity (112).

6. A push-button type stepless speed control switch according to claim 2, characterized in that: The first housing includes a lower housing (101) and an upper housing (109), which are connected by a locking mechanism.

7. A push-button type stepless speed control switch according to claim 6, characterized in that: The lower shell (101) is provided with a locking block (113), and the upper shell (109) is provided with a locking hole (114). The locking block (113) and the locking hole (114) are connected in a locking position.

8. A mixer, characterized in that: The device includes a second housing and a push-button stepless speed control switch (10) as described in any one of claims 1-7. The second housing has a cavity formed inside, and a circuit board (8) and a motor (9) are fixed and electrically connected inside the cavity. The push-button stepless speed control switch (10) is fixed and electrically connected to the circuit board (8). A button (3) is movably provided on the second housing, and the button (3) abuts against the first end of the switch button (102) of the push-button stepless speed control switch (10).

9. A mixer according to claim 8, characterized in that: The second housing includes a top cover (1), a front shell (2), a rear shell (5), and an outer shell (6). The front shell (2) and the rear shell (5) are fixedly connected. The top cover (1) is fixed to the upper end of the front shell (2) and the rear shell (5). The outer shell (6) is fixedly sleeved on the lower end of the front shell (2) and the rear shell (5).

10. A mixer according to claim 9, characterized in that: The outer shell (6) is fixed to the lower ends of the front shell (2) and the rear shell (5) by a limiting ring (7).

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