Start-stop switch

Abstract

The utility model discloses a start-stop switch which comprises a switch box, a knob switch is rotatably arranged on the switch box, and an excitation block is arranged on the knob switch; the trigger assembly comprises a reset switch and a plurality of state switches which are arranged on the switch box in a vertically sliding manner; the reset assembly is arranged in the switch box in a transverse sliding mode, the reset assembly can be pushed to transversely slide by pressing the corresponding state switches, and the other state switches in the state switches are adjusted to be in a non-excitation state in a sliding mode. In the utility model, each state switch corresponds to different centrifugal states, and only one state switch can be adjusted to the excitation state all the time, so that the condition of false starting is avoided, and after the reset switch is started, the state switch in the excitation state can be reset by matching with the reset assembly, so that the practical use is convenient.

Description

Technical Field

[0001] This utility model relates to the field of switch device technology, and in particular to a start / stop switch. Background Technology

[0002] The statements herein provide only background information related to this invention and do not necessarily constitute prior art.

[0003] A centrifuge is a laboratory device whose main function is to separate different components in a mixture using centrifugal force generated by high-speed rotation. Existing centrifuges typically offer several centrifugation modes, including instantaneous centrifugation, step centrifugation, and conventional centrifugation. These modes are usually controlled by virtual buttons on a screen. However, during actual operation, operators often accidentally press other virtual buttons, leading to incorrect centrifugation modes and consequently affecting the centrifugation results. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned shortcomings by providing a start / stop switch that is less prone to accidental activation and can accurately start the centrifuge in the appropriate state.

[0005] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a start / stop switch, comprising,

[0006] A switch box having a rotary switch rotatably mounted thereon, the rotary switch having an actuation block;

[0007] The triggering component includes a reset switch that can slide vertically on the switch box and multiple status switches;

[0008] A reset component is slidably disposed within the switch box. Pressing the corresponding state switch will push the reset component to slide laterally, and cause the remaining state switches to slide to the non-excited state. When the knob switch is rotated so that the excitation block faces the state switch in the excitation state, the state switch in the excitation state is connected to the excitation block. The reset switch is used to drive the reset component to slide laterally, so that the corresponding state switch in the excitation state is reset.

[0009] Furthermore, the switch box includes a box body and a detachable transparent cover disposed on the box body.

[0010] Furthermore, a first spring is provided inside the housing, and the reset assembly includes an operating plate that can slide laterally inside the housing. One side of the operating plate contacts the first spring, and multiple positioning grooves are formed on the operating plate along its moving direction. Each positioning groove is an L-shaped groove composed of a vertical portion with an inclined surface and a horizontal portion at the bottom of the vertical portion. When the corresponding state switch slides to the activated state, it abuts against the inclined surface of the vertical portion of the positioning groove and pushes the operating plate to move laterally closer to the first spring. When the state switch continues to slide into the horizontal end of the positioning groove, the first spring pushes the operating plate to reset and limits the state switch. Furthermore, when the operating plate moves laterally closer to the first spring, it will release the other state switches from their limited states.

[0011] The operation panel is also provided with a reset groove, which is trapezoidal and has an inclined surface on the side near the first spring. When the reset switch slides vertically to the activated state, it abuts against the inclined surface of the reset groove and causes the operation panel to move towards the side near the first spring. The movement of the operation panel is used to release the limit on the corresponding state switch.

[0012] Furthermore, the status switch includes an L-shaped sleeve disposed within the housing. A start button is slidably mounted on the vertical end of the L-sleeve. A first abutment block for abutting the inclined surface of a positioning groove is disposed on the side wall of the start button. A second spring is vertically disposed within the L-sleeve and contacts the start button. A trigger rod is slidably mounted on the horizontal end of the L-sleeve. An abutment strip is disposed on the side of the trigger rod near the start button. The abutment strip is offset from the second spring and is strip-shaped. The side of the abutment strip near the start button has an inclined surface that abuts against the start button. A tension spring connected to the trigger rod is horizontally disposed within the L-sleeve. Pressing the start button abuts against the inclined surface of the abutment strip and moves the trigger rod towards the side near the rotary switch, thus activating the corresponding status switch. The trigger rod is connected to the centrifuge signal. When the corresponding status switch is in the activated state, rotating the rotary switch causes the activation block to contact the trigger end of the corresponding trigger rod.

[0013] Furthermore, the reset switch includes a mounting sleeve disposed within the housing, a reset button slidably disposed within the mounting sleeve, a second abutting block for abutting against the inclined surface of the reset groove on the side wall of the reset button, and a third spring vertically disposed within the mounting sleeve, the third spring contacting the reset button.

[0014] The beneficial effects of this utility model are reflected in:

[0015] This invention first controls the activation of the state switch corresponding to the current state, putting the state switch into the activated state. Then, rotating the rotary switch causes the activation block to move synchronously to contact the state switch and establish a signal connection, thereby starting the centrifuge in this state. Only one of the state switches can be slidably adjusted to the activated state at any given time, thus preventing accidental activation. After activating the reset switch, it, in conjunction with the reset component, can reset the state switch in the activated state, facilitating practical use. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention;

[0017] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0018] Figure 3 This is a schematic diagram showing the connection between the reset component and the trigger component of this utility model;

[0019] Figure 4 This is a partial cross-sectional view of the status switch in this utility model;

[0020] Figure 5 This is a partial cross-sectional view of the reset switch in this utility model.

[0021] In the picture:

[0022] 1. Switch box; 11. Box body; 12. Cover; 2. Rotary switch; 21. Rotary body; 22. Actuating block; 3. First spring; 4. Reset assembly; 41. Operation panel; 42. Positioning groove; 43. Reset groove; 44. Sliding groove; 5. Trigger assembly; 51. Status switch; 511. L-shaped sleeve; 512. Start button; 513. First contact block; 514. Second spring; 515. Trigger rod; 516. Contact strip; 517. Tension spring; 52. Reset switch; 521. Mounting sleeve; 522. Reset button; 523. Second contact block; 524. Third spring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0024] Please see Figure 1-5This utility model discloses a start / stop switch, including a switch box 1 and a trigger component 5. The switch box 1 is installed on a centrifuge, and a rotary switch 2 is rotatably installed on it. The rotary switch 2 includes a knob body 21 and an excitation block 22 installed on the knob body 21. The trigger component 5 includes a reset switch 52 that can slide vertically on the switch box 1 and multiple status switches 51. The centrifuge has signal lines that connect different start states, and the multiple status switches 51 are respectively connected to the corresponding signal lines.

[0025] In one embodiment, a reset component 4 is slidably disposed in the switch box 1. Pressing the corresponding state switch 51 will push the reset component 4 to slide laterally and adjust the remaining state switches 51 to the non-excitation state. When the rotary switch 2 is rotated so that the excitation block 22 is facing the state switch 51 in the excitation state, the state switch 51 in the excitation state is connected to the excitation block 22. The reset switch 52 is used to drive the reset component 4 to slide laterally and reset the corresponding state switch 51 in the excitation state.

[0026] In practice, when it is necessary to control the centrifuge to start in a certain state, the state switch 51 corresponding to that state is first activated, so that the state switch 51 is in the activated state. Then, the rotary switch 2 is rotated so that the activation block 22 moves synchronously to contact the state switch 51 and connect with the signal, so that the centrifuge starts in that state. Only one of the state switches 51 can be slidably adjusted to the activated state, so there will be no accidental start. After the reset switch 52 is activated, it can reset the state switch 51 in the activated state in conjunction with the reset component 4, so as to facilitate actual use.

[0027] In one embodiment, the switch box 1 includes a box body 11 and a transparent cover 12 that is detachably mounted on the box body 11.

[0028] With this design, staff can observe the status of the status switch 51 and the reset switch 52 through the transparent cover 12, thus preventing insufficient adjustment accuracy.

[0029] In one embodiment, a first spring 3 is horizontally installed inside the box 11. The reset assembly 4 includes an operation plate 41 that can slide horizontally inside the box 11. The bottom of the operation plate 41 has a strip-shaped sliding groove 44. The box 11 has a strip-shaped piece located in the sliding groove 44. Both sides of the operation plate 41 have space between them and the inner wall of the box 11 for movement. One side of the operation plate 41 is in contact with the first spring 3. The operation plate 41 has a plurality of positioning grooves 42 along its moving direction. The positioning groove 42 is an L-shaped groove composed of a vertical part with a slope and a horizontal part located at the bottom of the vertical part. The operation plate 41 also has a reset groove 43. The reset groove 43 is trapezoidal and has a slope on the side near the first spring 3.

[0030] In practice, the operator presses the corresponding status switch 51, causing it to slide vertically to the activated state. During this process, the status switch 51 abuts against the inclined surface of the vertical part of the positioning groove 42 and pushes the operating plate 41 to move laterally towards the side closer to the first spring 3. When the status switch 51 continues to slide into the lateral end of the positioning groove 42, it separates from the inclined surface of the vertical part of the positioning groove 42. The first spring 3 then pushes the operating plate 41 to reset and limit the status switch 51, thus keeping the status switch 51 in the activated state. During the lateral movement of the operating plate 41, the other status switches 51 will be released from their limit states. Therefore, only one status switch 51 in the trigger assembly 5 will always be in the activated state. When it is necessary to make all status switches 51 in the deactivated state, the reset switch 52 is pressed and slid to the activated state. At this time, the reset switch 52 abuts against the inclined surface of the reset groove 43 and causes the operating plate 41 to move towards the side closer to the first spring 3. When the operating plate 41 moves laterally towards the side closer to the first spring 3, it will release the limit state of the corresponding status switch 51.

[0031] In one embodiment, the status switch 51 includes an L-shaped sleeve 511 installed inside the housing 11. A start button 512 is slidably mounted on the vertical end of the L-sleeve 511. A first abutting block 513 for abutting the inclined surface of the positioning groove 42 is installed on the side wall of the start button 512. A second spring 514 is vertically mounted inside the L-sleeve 511 and contacts the start button 512. A trigger rod 515 is slidably mounted on the horizontal end of the L-sleeve 511. An abutting strip 516 is installed on the side of the trigger rod 515 near the start button 512 and engages with the second spring 514. The abutment strip 516 is strip-shaped and has an inclined surface on the side near the start button 512 that abuts against the start button 512. A tension spring 517 connected to the trigger rod 515 is installed laterally inside the L-sleeve 511. Pressing the start button 512 abuts against the inclined surface of the abutment strip 516 and moves the trigger rod 515 towards the side near the rotary switch 2, so that the corresponding status switch 51 is in the activated state. The trigger rod 515 is connected to the centrifuge signal. When the corresponding status switch 51 is in the activated state, rotating the rotary switch 2 can make the excitation block 22 contact the trigger end of the corresponding trigger rod 515.

[0032] In practice, when the start button 512 in the corresponding status switch 51 is pressed, the start button 512 moves towards the side closer to the second spring 514 until it abuts against the inclined surface of the contact bar 516. As the start button 512 continues to move, the contact bar 516 and the trigger rod 515 are pushed and move towards the side closer to the rotary switch 2. At this time, the status switch 51 corresponding to the trigger rod 515 is in the activated state. When the corresponding status switch 51 is in the activated state, the trigger block 22 can contact the trigger end of the trigger rod 515. When the corresponding status switch 51 is in the non-activated state, the activation block 22 cannot contact the trigger end of the trigger rod 515, so that the activation block 22 can only contact the corresponding trigger rod 515; while the start button 512 moves, the first abutting block 513 abuts against the inclined surface of the positioning groove 42, thereby driving the operation plate 41 to move laterally. When the first abutting block 513 moves to the lateral part of the positioning groove 42, the operation plate 41 is then pushed by the first spring 3 and the first abutting block 513 and the start button 512 are limited.

[0033] In one embodiment, the reset switch 52 includes a mounting sleeve 521 installed inside the housing 11. A reset button 522 is slidably mounted in the mounting sleeve 521. A second abutting block 523 for abutting the inclined surface of the reset groove 43 is installed on the side wall of the reset button 522. A third spring 524 is vertically mounted inside the mounting sleeve 521 and contacts the reset button 522.

[0034] In practice, when it is necessary to keep all status switches 51 in the non-activated state, the operator can press the reset button 522 and move it to the side closer to the third spring 524. At this time, the second abutment block 523 abuts against the inclined surface of the reset groove 43, thereby driving the operation plate 41 to move laterally and releasing the limit on the corresponding first abutment block 513 and start button 512.

[0035] In one embodiment, the reset switch 52 may also be an electric switch (not shown in the figure), and the centrifuge is equipped with a timing device. The centrifuge, the timing device and the centrifuge signal are connected. The operator sets the centrifugation time at the timing device. When the centrifuge reaches the centrifugation time, the timing device sends a reset signal to the reset switch 52.

[0036] With this design, when the centrifuge finishes centrifugation in the corresponding state, the timing device can send a signal to the reset switch 52, causing the reset switch 52 to start automatically and all state switches 51 to be reset. The above structure is common knowledge in the field, so its specific structural composition and working principle will not be described in detail in this article.

[0037] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0038] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0039] Additionally, "multiple" refers to two or more.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A start / stop switch, characterized in that: include, A switch box (1) on which a rotary switch (2) is rotatably mounted, the rotary switch (2) having an excitation block (22); Triggering component (5), which includes a reset switch (52) that can slide vertically on the switch box (1) and a plurality of status switches (51); The reset assembly (4) is slidably disposed in the switch box (1). Pressing the corresponding state switch (51) will push the reset assembly (4) to slide laterally and adjust the remaining state switches (51) to the non-excitation state. When the rotary switch (2) is rotated so that the excitation block (22) faces the excitation state switch (51), the excitation state switch (51) and the excitation block (22) are connected. The reset switch (52) is used to drive the reset assembly (4) to slide laterally and reset the corresponding state switch (51) in the excitation state.

2. The start / stop switch according to claim 1, characterized in that: The switch box (1) includes a box body (11) and a detachable transparent cover (12) disposed on the box body (11).

3. The start / stop switch according to claim 2, characterized in that: The box (11) is equipped with a first spring (3) inside. The reset assembly (4) includes an operation plate (41) that can slide laterally inside the box (11). One side of the operation plate (41) is in contact with the first spring (3). The operation plate (41) has multiple positioning grooves (42) along its moving direction. The positioning groove (42) is an L-shaped groove composed of a vertical part with an inclined surface and a horizontal part at the bottom of the vertical part. When the corresponding state switch (51) slides to the activated state, it abuts against the inclined surface of the vertical part of the positioning groove (42) and pushes the operation plate (41) to move laterally towards the side closer to the first spring (3). When the state switch (51) continues to slide into the horizontal end of the positioning groove (42), the first spring (3) pushes the operation plate (41) to reset and limits the state switch (51). When the operation plate (41) moves laterally towards the side closer to the first spring (3), it will release the other state switches (51) from the limit state. The operation plate (41) is also provided with a reset groove (43). The reset groove (43) is trapezoidal and has an inclined surface on the side near the first spring (3). When the reset switch (52) slides vertically to the activated state, it abuts against the inclined surface of the reset groove (43) and causes the operation plate (41) to move towards the side near the first spring (3). The movement of the operation plate (41) is used to release the limit on the corresponding state switch (51).

4. The start / stop switch according to claim 3, characterized in that: The status switch (51) includes an L-shaped sleeve (511) disposed inside the housing (11). A start button (512) is slidably disposed on the vertical end of the L-sleeve (511). A first abutting block (513) for abutting the inclined surface of the positioning groove (42) is disposed on the side wall of the start button (512). A second spring (514) is vertically disposed inside the L-sleeve (511) and contacts the start button (512). A trigger rod (515) is slidably disposed on the horizontal end of the L-sleeve (511). An abutting strip (516) is disposed on the side of the trigger rod (515) near the start button (512). The abutting strip (516) and the second spring (514) are connected. The abutment strip (516) is strip-shaped and has an inclined surface on the side near the start button (512) that abuts against the start button (512). A tension spring (517) connected to the trigger rod (515) is arranged horizontally inside the L sleeve (511). Pressing the start button (512) abuts against the inclined surface of the abutment strip (516) and moves the trigger rod (515) towards the side near the rotary switch (2), so that the corresponding status switch (51) is in the activated state. The trigger rod (515) is connected to the centrifuge signal. When the corresponding status switch (51) is in the activated state, rotating the rotary switch (2) can make the trigger block (22) contact the trigger end of the corresponding trigger rod (515).

5. The start / stop switch according to claim 3, characterized in that: The reset switch (52) includes a mounting sleeve (521) disposed inside the housing (11). A reset button (522) is slidably disposed in the mounting sleeve (521). A second abutting block (523) for abutting the inclined surface of the reset groove (43) is disposed on the side wall of the reset button (522). A third spring (524) is vertically disposed inside the mounting sleeve (521). The third spring (524) contacts the reset button (522).

Images