Switch trigger mechanism and printer

Abstract

The utility model provides a switch trigger mechanism and a printer. The switch trigger mechanism includes a rotating shaft and a switch. The rotating shaft has a first state and a second state, and can be switched between the first state and the second state. The switch has a movable arm and a switch sub-, and the switch is switched on and off by squeezing or releasing the switch sub-by the movable arm. The movable arm is located on the switching path between the first state and the second state of the rotating shaft. The switch can be a micro switch or a touch switch, etc., and the on and off of the switch can be achieved by the cooperation of the movable arm and the switch sub-. When the rotating shaft is in the first state, the rotating shaft and the movable arm give way to cooperate, and the movable arm releases the switch sub-, so that the switch is in the closed state. When the rotating shaft is in the second state, the rotating shaft squeezes the movable arm, so that the movable arm squeezes the switch sub-, so that the switch is in the open state. By rotating the rotating shaft and switching the first state and the second state, the opening and closing of the switch can be controlled in linkage. The structure is simple and the operation is reliable.

Description

Technical Field

[0001] The utility model relates to the field of printer equipment, in particular to a switch trigger mechanism and a printer. Background Art

[0002] In printers, especially thermal printers, the cover needs to be opened and closed frequently because of the need to take and replace printing paper. In order to ensure that the cover is closed in place each time, a detection structure needs to be added to achieve this. The detection structure will start the print switch only after detecting that the cover is closed in place. This startup method is relatively complicated. Our company has designed a switch trigger structure and printer that can well combine cover closing detection with switch startup, thereby simplifying the structure. Utility Model Content

[0003] The utility model aims to provide a switch trigger mechanism and a printer.

[0004] The utility model aims to solve the problem that the steps and structures of turning on the print switch of the existing printer are relatively complicated.

[0005] In order to solve the above problems, the utility model is implemented through the following technical solutions:

[0006] A switch trigger mechanism comprises: a rotating shaft having a first state and a second state; a switch having a movable arm and a switch sub, wherein the switch is switched on and off by the movable arm squeezing or releasing the switch sub; the movable arm is located on a switching path between the first state and the second state of the rotating shaft; when the rotating shaft is in the first state, the rotating shaft and the movable arm give way to each other; when the rotating shaft is in the second state, the rotating shaft squeezes the movable arm so that the movable arm presses the switch sub to switch the switch on and off state.

[0007] A switch trigger mechanism comprises: a rotating shaft having a first state and a second state; a switch having a transmitter and a receiver, wherein the switch is switched on and off by blocking or giving way to the light between the transmitter and the receiver; the light propagation path between the transmitter and the receiver is located on the switching path between the first state and the second state of the rotating shaft; when the rotating shaft is in the first state, the rotating shaft does not block the light propagation path; when the rotating shaft is in the second state, the rotating shaft blocks the light propagation path.

[0008] A printer comprises the switch trigger mechanism mentioned above, and also comprises a mounting plate, an upper base side cover arranged opposite to the mounting plate, and a cover body; the rotating shaft is respectively connected to the mounting plate and the upper base side cover, the cover body is connected to the rotating shaft, and flipping the cover body can drive the rotating shaft to rotate; wherein, when the rotating shaft is in the first state, the cover body is opened; when the rotating shaft is in the second state, the cover body is closed.

[0009] Furthermore, the switch is arranged on a side of the mounting plate away from the upper base side cover, and the end of the rotating shaft passes through the mounting plate to cooperate with the switch.

[0010] Furthermore, the end of the rotating shaft that cooperates with the switch is provided with an arc surface and a plane arranged opposite to the arc surface. When the rotating shaft is in the second state, the arc surface abuts against the movable arm to squeeze the movable arm; when the rotating shaft is in the first state, the movable arm is opposite to the plane to give way to the movable arm.

[0011] Furthermore, a shielding member is provided at the end of the rotating shaft that cooperates with the switch, and the shielding member includes a connecting portion connected to the rotating shaft and a shielding portion arranged at one end of the connecting portion away from the rotating shaft; when the rotating shaft is in the second state, the shielding portion is located on the light propagation path; when the rotating shaft is in the first state, the shielding portion leaves the light propagation path.

[0012] Furthermore, the printer further comprises a dial button, the end of the rotating shaft passes through the upper base side cover, and the dial button is sleeved on the end and is limitedly engaged with the rotating shaft in the circumferential direction.

[0013] Furthermore, the dial button has a dial arm, and the dial arm is perpendicular to the rotation axis.

[0014] Compared with the prior art, the technical solution of the utility model and its beneficial effects are as follows:

[0015] (1) The switch trigger mechanism of the utility model can control the opening and closing of the switch by rotating the rotating shaft to switch between the first state and the second state, that is, switching the matching relationship between the rotating shaft and the switch. The structure is simple and the operation is reliable.

[0016] (2) The switch of the printer of the present invention is triggered only when the cover is fully closed, thereby avoiding the printer from being operated due to the switch being accidentally touched when the cover is not fully closed. The switch is turned on and off by synchronously linking the rotating shaft through the flipping of the cover. The scheme is simple and the operation is reliable. No additional structure is required to trigger the cover opening switch, thereby reducing costs.

[0017] (3) The printer of the present invention is also provided with a dial button, which is another way to control the rotation of the rotating shaft, and is provided with a dial arm, so that it is more labor-saving when the dial button is turned to drive the rotating shaft to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of a switch trigger mechanism provided by the first embodiment of the utility model, in which the rotating shaft is in the first state;

[0019] Figure 2 This is a structural diagram of a switch trigger mechanism provided in the first embodiment of the utility model, in which the rotating shaft is in the second state;

[0020] Figure 3 This is a structural diagram of a printer provided by the second embodiment of the utility model, in which the rotating shaft is in the first state;

[0021] Figure 4 This is a structural diagram of a printer provided by the second embodiment of the utility model, in which the rotating shaft is in the second state;

[0022] Figure 5 It is an exploded view of a part of the structure of the printer provided in the third embodiment of the utility model;

[0023] Figure 6 This is a structural diagram of a printer provided by the fourth embodiment of the utility model, in which the rotating shaft is in the first state;

[0024] Figure 7 This is a structural diagram of a printer provided by the fourth embodiment of the utility model, and the rotating shaft is in the second state at this time.

[0025] Illustration Description:

[0026] Rotating axis-1; arc surface-11; plane-12; connecting part-13; shielding part-14; switch-2; movable arm-21; switch sub-22; transmitter-23; receiver-24;

[0027] Mounting plate-100; upper base side cover-200; print head pressure assembly-300; print head-400; dial button-500; dial wall-510; cover body-600. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0029] Embodiment 1

[0030] See also Figure 1 and Figure 2 A switch trigger mechanism includes a rotating shaft 1 and a switch 2. The rotating shaft 1 has a first state and a second state and can be switched between the first state and the second state. The switch 2 has a movable arm 21 and a switch 22. The movable arm 21 squeezes or releases the switch 22 to realize the on-off switching of the switch 2. The movable arm 22 is located on the switching path between the first state and the second state of the rotating shaft 1. The switch can be a micro switch or a touch switch, etc., and the on-off of the switch can be realized by the cooperation of the movable arm and the switch.

[0031] When the rotating shaft 1 is in the first state, the rotating shaft 1 and the movable arm 21 make way for each other, and the movable arm 21 releases the switch 22, so that the switch 2 is in the closed state. Figure 1 When the rotating shaft 1 is in the second state, the rotating shaft 1 squeezes the movable arm 21, so that the movable arm 21 squeezes the switch 22, so that the switch 2 is in the open state. Figure 2 .

[0032] By rotating the rotating shaft 1 and switching between the first state and the second state, the switch 2 can be controlled to be on and off in linkage, with a simple structure and reliable operation.

[0033] Embodiment 2

[0034] See also Figure 3 and Figure 4 A printer includes the switch trigger mechanism. The printer also includes a mounting plate 100, an upper base side cover 200 disposed opposite to the mounting plate 100, and a cover body 600 ( Figure 5 The rotating shaft 1 is connected to the mounting plate 100 and the upper base side cover 200 respectively, and the cover body is connected to the rotating shaft 1. The flipping cover body can drive the rotating shaft 1 to rotate, that is, the flipping cover body can change the rotating shaft 1 to switch between the first state and the second state.

[0035] Specifically, when the cover 600 is fully opened, the rotating shaft 1 is in the first state, the rotating shaft 1 and the movable arm 21 make way for each other, the switch 2 is in the closed state, and the print head pressure assembly 300 disposed on the rotating shaft 1 rotates and tilts synchronously, releasing the pressure on the print head 400, such as Figure 3 When the cover 600 is closed, the rotating shaft 1 is in the second state, the switch 2 is in the open state, and the print head pressure assembly 300 disposed on the rotating shaft 1 rotates synchronously to the printing position to press the print head 400. Figure 4 That is, the switch 2 will be triggered only when the cover 600 is fully closed, thereby avoiding the printer from being operated due to the switch being accidentally touched when the cover is not fully closed. The switch is turned on and off by synchronously linking the rotating shaft 1 with the flipping of the cover 600. The solution is simple and the action is reliable. No additional structure is required to trigger the cover opening switch, thereby reducing the cost.

[0036] In this embodiment, the switch 2 is arranged on the side of the mounting plate 100 away from the upper base side cover 200, and the end of the rotating shaft 1 passes through the mounting plate 100 to make way with the movable arm 21 or squeeze the movable arm 21. Specifically, the end of the rotating shaft 1 that cooperates with the switch is provided with an arc surface 11 and a plane 12 arranged opposite to the arc surface 11. When the rotating shaft 1 is in the second state, the arc surface 11 abuts against the movable arm 21 to squeeze the movable arm 21, and the control switch is turned on. When the rotating shaft 1 is in the first state, the movable arm 21 is opposite to the plane 12 and makes way with the movable arm 21 to close the control switch. Through the ingenious design of the end of the rotating shaft 1, the rotating shaft 1 can achieve the making way with or squeezing of the movable arm 21.

[0037] Embodiment 3

[0038] The principle of this embodiment is the same as that of the second embodiment, except that this embodiment further includes a dial button.

[0039] See also Figure 5 The end of the rotating shaft 1 passes through the upper base side cover 200, and the dial button 500 is sleeved on the end of the rotating shaft 1 and is limited in the circumferential direction of the rotating shaft 1, that is, rotating the dial button 500 can synchronously drive the rotating shaft 1 to rotate. The dial button 500 has a toggle arm 510, and the toggle arm 510 is perpendicular to the rotating shaft 1. Adding the toggle arm 510 increases the force arm of the dial button 500. According to the principle of lever, it is more labor-saving when the dial button 500 drives the rotating shaft 1 to rotate.

[0040] Embodiment 4

[0041] The difference between this embodiment and the second or third embodiment is that the switch of this embodiment is a photoelectric induction switch.

[0042] See also Figure 6 and Figure 7A switch trigger mechanism includes a rotating shaft 1 and a switch 2. The rotating shaft 1 has a first state and a second state and can switch between the first state and the second state. The switch has a transmitter 23 and a receiver 24. The switch is switched on and off by blocking or giving way to the light between the transmitter 23 and the receiver 24. The light propagation path between the transmitter 23 and the receiver 24 is located on the switching path between the first state and the second state of the rotating shaft 1. Specifically, when the rotating shaft 1 is in the first state, the rotating shaft 1 does not block the light propagation path; when the rotating shaft is in the second state, the rotating shaft blocks the light propagation path.

[0043] The printer with a switch trigger mechanism of the utility model links the switching between the first state and the second state of the rotating shaft through the opening or closing action of the printer, thereby controlling the on-off switching of the switch. The scheme is simple and the action is reliable. The printer can only start working when the cover body is closed in place and the print head pressure component presses the print head tightly, thereby preventing the printer from malfunctioning.

[0044] The above description shows and describes the preferred embodiments of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept of this article through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A switch trigger mechanism, characterized in that: include: A rotating shaft having a first state and a second state; The switch comprises a movable arm and a switch sub-element, wherein the movable arm squeezes or releases the switch sub-element to realize the on-off switching of the switch; the movable arm is located on the switching path between the first state and the second state of the rotating shaft; When the rotating shaft is in the first state, the rotating shaft and the movable arm make way for each other; when the rotating shaft is in the second state, the rotating shaft squeezes the movable arm so that the movable arm presses the switch to switch the switch to an open or closed state.

2. A switch trigger mechanism, characterized in that: include: A rotating shaft having a first state and a second state; A switch having a transmitter and a receiver, wherein the switch is switched on and off by blocking or giving way to the light between the transmitter and the receiver; the light propagation path between the transmitter and the receiver is located on the switching path between the first state and the second state of the rotating shaft; When the rotation axis is in the first state, the rotation axis does not block the light propagation path; when the rotation axis is in the second state, the rotation axis blocks the light propagation path.

3. A printer, characterized in that: It includes the switch trigger mechanism as described in claim 1 or 2, and also includes a mounting plate, an upper base side cover arranged opposite to the mounting plate, and a cover body; the rotating shaft is respectively connected to the mounting plate and the upper base side cover, and the cover body is connected to the rotating shaft, and flipping the cover body can drive the rotating shaft to rotate; wherein, when the rotating shaft is in the first state, the cover body is opened; when the rotating shaft is in the second state, the cover body is closed.

4. A printer according to claim 3, characterized in that: The switch is arranged on a side of the mounting plate away from the upper base side cover, and the end of the rotating shaft passes through the mounting plate to cooperate with the switch.

5. A printer according to claim 4, characterized in that: The end of the rotating shaft that cooperates with the switch is provided with an arc surface and a plane arranged opposite to the arc surface. When the rotating shaft is in the second state, the arc surface abuts against the movable arm to squeeze the movable arm; when the rotating shaft is in the first state, the movable arm is opposite to the plane to give way to the movable arm.

6. A printer according to claim 4, characterized in that: A shielding member is provided at the end of the rotating shaft that cooperates with the switch, and the shielding member includes a connecting portion connected to the rotating shaft and a shielding portion arranged at one end of the connecting portion away from the rotating shaft; when the rotating shaft is in the second state, the shielding portion is located on the light propagation path; when the rotating shaft is in the first state, the shielding portion leaves the light propagation path.

7. A printer according to any one of claims 3 to 6, characterized in that: It also includes a dial button, the end of the rotating shaft passes through the upper base side cover, and the dial button is sleeved on the end and is limitedly matched with the rotating shaft in the circumferential direction.

8. A printer according to claim 7, characterized in that: The dial button has a dial arm, and the dial arm is perpendicular to the rotation axis.

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