Electric linear push rod type dual-channel fluorescent light source switching mechanism

Abstract

The utility model discloses an electric linear push rod type dual-channel fluorescent light source switching mechanism, which belongs to the technical field of fluorescent microscopic imaging and comprises a support plate, a PCB (printed circuit board), a fluorescent light source module, a connecting piece, a spring, a linear push rod electromagnet, a light source mounting plate, a linear slide block, a linear guide rail and a limiting block. By means of the mode, in the switching process of the two fluorescent light sources, a closed-loop control mode is omitted, position feedback of a sensor is not needed, use of a motor is omitted, and use and assembly of a lead screw and a lead screw nut are omitted, the structural mode is simplified, the assembly difficulty and the structural cost are reduced, and the control mode is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of fluorescence microscopy, in particular to an electric linear push rod type dual-channel fluorescence light source switching mechanism. Background Art

[0002] In the prior art, the fluorescent light source switching mechanisms on the market are mainly multi-channel fluorescent light source switching mechanisms, and the mechanisms used are mainly divided into two categories: the first category is a turntable switching mechanism, and the second category is a linear switching mechanism.

[0003] Among many existing technologies, Chinese patent application CN209281060U discloses a switchable multi-channel fluorescence module device, including a frame, and also including a control module, a rotation module and a positioning module fixed on the frame; the rotation module includes a motor and a turntable fixedly connected to the motor shaft, and six fluorescence modules are equidistantly arranged on the turntable; the positioning template includes an optical coupler fixed on the frame and a light-shielding seat fixed on the edge of the turntable; the control module includes a control part, which is respectively connected to the motor and the optical coupler; it also includes a lens barrel and an objective lens adapter fixed on the frame and coaxial, and each fluorescence module is coaxial with the lens barrel and the objective lens adapter respectively through rotation.

[0004] However, the switching method in this patented technology is the switching of multi-channel fluorescence. This multi-channel switching requires closed-loop control to ensure that the mechanism can move to the preset position. The closed-loop method mostly uses a closed-loop motor to perform position control or uses a position sensor to feedback the actual physical position. The linear switching method mostly uses a combination of a screw and a nut, which has a more complex structure and more restrictions.

[0005] Based on this, the utility model designs an electric linear push rod type dual-channel fluorescent light source switching mechanism to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides an electric linear push rod type dual-channel fluorescent light source switching mechanism.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] An electric linear actuator type dual-channel fluorescent light source switching mechanism includes a support plate, a PCB board, a fluorescent light source module, a connector, a spring, a linear actuator electromagnet, a light source mounting plate, a linear slide, a linear guide rail, and a limit block;

[0009] The PCB board is electrically connected with the fluorescent light source module through contact matching, the fluorescent light source module is fixedly installed at the bottom of the light source mounting plate, the PCB board is fixedly installed at the upper end of the light source mounting plate, the light source mounting plate is fixedly installed at the upper portion of the linear slide, the linear slide is slidably connected with the side surface of the linear guide rail, the linear guide rail is fixedly installed at the upper end of the support plate, two groups of limiting blocks are fixedly installed at the left and right sides of the linear guide rail through bolts, the connecting piece is fixedly installed at the side end of the light source mounting plate through a bolt, the output end of the linear push rod electromagnet is fixedly installed on the connecting piece through a bolt, and the linear push rod electromagnet is fixedly installed at the upper end of the support plate.

[0010] Further, the fluorescent light source module is provided with two groups and is symmetrically distributed about the center line of the light source mounting plate.

[0011] Further, the model of the fluorescent light source module is set to DM.

[0012] Further, the connecting piece is arranged on the right side of the light source mounting plate.

[0013] Further, the model of the linear push rod electromagnet is set to a de-energized electromagnet.

[0014] Further, the light source mounting plate is set to an L-shaped plate.

[0015] Compared with the prior art, the utility model has the beneficial effects that: 1, the utility model is applied to the double-channel fluorescent light source switching, the switching mode of the mechanism adopts a linear switching mode, cancels the high-cost screw nut mechanism, adopts the linear push rod electromagnet, under the condition of energizing and de-energizing the linear push rod electromagnet, the moving mechanism and the linear push rod motor move to the limit position on both sides, which is also the preset target position, the moving position of the moving mechanism is limited by the limiting block on both sides of the moving mechanism, and the moving distance of the linear push rod electromagnet is also limited, so that the purpose of accurate switching is achieved, the closed-loop control scheme and cost can be saved in the double-channel fluorescent light source switching, and the structural scheme is also more simple. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating creative labor.

[0017] Fig. 1This is a three-dimensional diagram of the electric linear push rod type dual-channel fluorescent light source switching mechanism of the present invention in an extended state;

[0018] Fig. 2 This is a front view of the electric linear push rod type dual-channel fluorescent light source switching mechanism of the utility model in a compressed state;

[0019] Fig. 3 This is a three-dimensional diagram of the electric linear push rod type dual-channel fluorescent light source switching mechanism of the present invention in a compressed state.

[0020] The numbers in the figure represent:

[0021] 1. Support plate; 2. PCB board; 3. Fluorescent light source module; 4. Connector; 5. Spring; 6. Linear push rod electromagnet; 7. Light source mounting plate; 8. Linear slider; 9. Linear guide rail; 10. Limit block. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0023] The terms “left,” “right,” “front,” “back,” “up,” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0024] Example 1: In some embodiments, please refer to the accompanying drawings of the specification. Figs. 1-3 , an electric linear push rod type dual-channel fluorescent light source switching mechanism, including a support plate 1, a PCB board 2, a fluorescent light source module 3, a connector 4, a spring 5, a linear push rod electromagnet 6, a light source mounting plate 7, a linear slider 8, a linear guide rail 9 and a limit block 10;

[0025] The PCB board 2 is electrically connected to the fluorescent light source module 3 through contact cooperation. The fluorescent light source module 3 is fixedly installed on the bottom of the light source mounting plate 7 by bolts. The PCB board 2 is fixedly installed on the upper end of the light source mounting plate 7. The light source mounting plate 7 is fixedly installed on the upper part of the linear slider 8 by bolts. The linear slider 8 is slidably connected with the side of the linear guide rail 9. The linear guide rail 9 is fixedly installed on the upper end of the support plate 1. Two groups of limit blocks 10 are fixedly installed on the left and right sides of the linear guide rail 9 by bolts. The connecting piece 4 is fixedly installed on the side end of the light source mounting plate 7 by bolts. The output end of the linear push rod electromagnet 6 is fixedly installed on the connecting piece 4 by bolts. The linear push rod electromagnet 6 is fixedly installed on the upper end of the support plate 1. One end of the spring 5 is fixedly connected to the side of the output end of the linear push rod electromagnet 6 close to the connecting piece 4, and the other end of the spring 5 is fixedly connected to the inner shell of the linear push rod electromagnet 6.

[0026] When the utility model is used, when the linear push rod electromagnet 6 is powered off, the spring 5 rebounds from the compressed state, driving the output end of the linear push rod electromagnet 6 to extend to the side away from the linear push rod electromagnet 6, and the output end of the linear push rod electromagnet 6 drives the connecting member 4 to move, the connecting member 4 drives the light source mounting plate 7 to move, the light source mounting plate 7 drives the PCB board 2 and the fluorescent light source module 3 to move, and the light source mounting plate 7 drives the linear slide 8 to move along the linear guide rail 9 until the light source mounting plate 7 hits the limit block 10 on the side away from the linear push rod electromagnet 6. Stop moving; when the linear push rod electromagnet 6 is energized, the output end of the linear push rod electromagnet 6 retracts to the side close to the linear push rod electromagnet 6, driving the spring 5 to compress, and the output end of the linear push rod electromagnet 6 drives the connecting part 4, the light source mounting plate 7, the PCB board 2, the fluorescent light source module 3 and the linear slider 8 to move to the other side until they hit the limit block 10 close to the side of the linear push rod electromagnet 6 and stop moving. Switching the position of the fluorescent light source can be completed by simply turning the linear push rod electromagnet 6 on and off, which is convenient to operate and has a simple structure.

[0027] The fluorescent light source modules 3 are provided in two groups and are distributed symmetrically about the center line of the light source installation plate 7 .

[0028] When the present invention is used, the two sets of fluorescent light source modules 3 can be used to replace different light sources to increase the coverage of the light source.

[0029] The model of the fluorescent light source module 3 is set to DM750.

[0030] The connecting member 4 is arranged on the right side of the light source mounting plate 7 .

[0031] The linear push rod electromagnet 6 is a type of power-off electromagnet.

[0032] The light source mounting plate 7 is configured as an L-shaped plate.

[0033] When the present invention is used, the L-shaped light source mounting plate 7 supports the fluorescent light source module 3 and the PCB board 2 at the same time, thereby reducing occupied space.

[0034] Embodiment 2: In some embodiments, as Figs. 1-3 As shown; as a preferred embodiment of the present utility model, the linear sliders 8 are provided in two groups and are symmetrically distributed about the center line of the light source mounting plate 7.

[0035] When the present invention is used, the two groups of linear sliders 8 provide more uniform support forces to the light source mounting plate 7 , thereby facilitating stable movement of the fluorescent light source module 3 on the light source mounting plate 7 .

[0036] Embodiment 3: In some embodiments, as Figs. 1-3 As shown, as a preferred embodiment of the present invention, the limit block 10 is configured as a square block.

[0037] When the present invention is used, when the square limiting block 10 contacts the side end of the light source mounting plate 7 , the contact area is larger and the force is more evenly distributed.

[0038] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An electric linear push rod type dual-channel fluorescent light source switching mechanism, comprising a support plate (1), characterized in that: It also includes a PCB board (2), a fluorescent light source module (3), a connector (4), a spring (5), a linear push rod electromagnet (6), a light source mounting plate (7), a linear slider (8), a linear guide rail (9) and a limit block (10); The PCB board (2) and the fluorescent light source module (3) are electrically connected through contact matching. The fluorescent light source module (3) is fixedly mounted on the bottom of the light source mounting plate (7) by bolts. The PCB board (2) is fixedly mounted on the upper end of the light source mounting plate (7). The light source mounting plate (7) is fixedly mounted on the upper part of the linear slider (8) by bolts. The linear slider (8) is slidably connected with the side of the linear guide rail (9). The linear guide rail (9) is fixedly mounted on the upper end of the support plate (1). The left and right sides of the linear guide rail (9) are respectively Two sets of limit blocks (10) are fixedly installed by bolts, the connecting member (4) is fixedly installed on the side end of the light source mounting plate (7) by bolts, the output end of the linear push rod electromagnet (6) is fixedly installed on the connecting member (4) by bolts, the linear push rod electromagnet (6) is fixedly installed on the upper end of the support plate (1), one end of the spring (5) is fixedly connected to the side of the output end of the linear push rod electromagnet (6) close to the connecting member (4), and the other end of the spring (5) is fixedly connected to the inner shell of the linear push rod electromagnet (6).

2. The electric linear actuator type dual-channel fluorescent light source switching mechanism according to claim 1, characterized in that: The fluorescent light source modules (3) are provided in two groups and are distributed symmetrically about the center line of the light source mounting plate (7).

3. The electric linear actuator type dual-channel fluorescent light source switching mechanism according to claim 2, characterized in that: The model of the fluorescent light source module (3) is set to DM750.

4. The electric linear actuator type dual-channel fluorescent light source switching mechanism according to claim 1, characterized in that: The connecting member (4) is arranged on the right side of the light source mounting plate (7).

5. The electric linear actuator type dual-channel fluorescent light source switching mechanism according to claim 1, characterized in that: The linear push rod electromagnet (6) is of a type set to be a power-off type electromagnet.

6. The electric linear actuator type dual-channel fluorescent light source switching mechanism according to claim 1, characterized in that: The light source mounting plate (7) is configured as an L-shaped plate.

7. The electric linear actuator type dual-channel fluorescent light source switching mechanism according to claim 6, characterized in that: The linear sliders (8) are provided in two groups and are distributed symmetrically about the center line of the light source mounting plate (7).

8. The electric linear actuator type dual-channel fluorescent light source switching mechanism according to claim 1, characterized in that: The limiting block (10) is configured as a square block.

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