A multi-point bit display sampler

Abstract

This invention provides a multi-point digital display sampler, which solves the problems of cumbersome multi-point sampling operation, low sampling flexibility, and low accuracy of existing samplers. It includes a sampler; a hollow controller is located adjacent to the sampler, and multiple sliding rods parallel to the sampler are slidably connected inside the controller. Each sliding rod has a closing cover at its end. The sampler includes multiple sampling chambers, each with a sampling port on the side facing the controller, and each sampling port is slidably engaged with a corresponding closing cover. A push-button assembly abuts the top of each sliding rod, driving its axial movement. The controller contains a positioning block that cooperates with the push-button assembly to limit the movement of the rods. Each sampling chamber contains a weighing sensor, and a digital display screen is provided on its surface. The input end of the digital display screen is connected to the output end of the weighing sensor. This invention has wide applications in the field of sampling equipment technology.

Description

Technical Field

[0001] This application relates to the field of sampling equipment technology, and more specifically, to a multi-point digital display sampler. Background Technology

[0002] Sample collection is a crucial step in data analysis, directly impacting the accuracy and reliability of subsequent analytical results. Currently, most samplers employ a single-channel design, capable of collecting samples from only a single location. When sampling from different locations of the same sample or from different samples, multiple disassemblies or replacements of the sampling components are necessary, resulting in cumbersome operations, extended sampling intervals, and reduced sampling efficiency and subsequent experimental progress. While some multi-channel samplers offer multi-point sampling capabilities, the opening and closing of each sampling channel is uniformly regulated by a control structure, preventing independent operation of individual sampling ports. This makes it difficult to meet the diverse sampling needs of different locations, resulting in low sampling flexibility and limited applicability. Furthermore, during sampling, the speed at which the sample enters the sampling channel and the sample volume rely entirely on the operator's experience and judgment, lacking quantitative standards and leading to low sampling accuracy. Utility Model Content

[0003] To address the aforementioned problems, the present invention provides a multi-point digital display sampler, which solves the issues of cumbersome multi-point sampling operation, low sampling flexibility, and low accuracy of existing samplers. The sampler includes a hollow controller located adjacent to its side. Multiple movable rods parallel to the sampler are slidably connected within the controller, each rod having a closed cover at its end. The sampler includes multiple sampling chambers, each with a sampling port on its side facing the controller, and each port slidingly engaging with a corresponding closed cover. A push-button assembly abuts the top of each movable rod, driving its axial movement. A positioning block within the controller, cooperating with the push-button assembly, limits the movement of the rods. Each sampling chamber contains a weighing sensor and a digital display screen on its surface, with the input of the display screen connected to the output of the weighing sensor.

[0004] Preferably, the positioning block is provided with multiple positioning grooves spaced apart along the axial direction. The pressing component includes a pressing button movably connected to the top of the controller and an inclined cam abutting against the top of the moving rod. The pressing button and the inclined cam are slidably engaged, so that the inclined cam slides along the positioning groove. It also includes a return spring sleeved on the moving rod. The moving rod is provided with a limiting protrusion. The return spring is located between the bottom of the controller and the limiting protrusion and abuts against both.

[0005] Preferably, the inclined cam surface is provided with multiple gear protrusions with inclined tops on the circumferential direction, and the bottom of the button is provided with multiple triangular grooves that slide in cooperation with the inclined surfaces of the gear protrusions; the bottom of the inner side of the positioning block is provided with multiple inclined grooves, and the inclined surfaces of the gear protrusions slide in cooperation with the inclined grooves under the action of the return spring; the button surface is provided with multiple sliders on the circumferential direction, and both the sliders and the gear protrusions slide in cooperation with the positioning grooves.

[0006] Preferably, the top of the inclined cam is provided with a sliding rod, the button is hollow inside and is slidably connected to the sliding rod.

[0007] Preferably, the multiple sampling chambers are detachably connected to each other.

[0008] Preferably, the front end of the sampling chamber at the very front is connected to a pointed guide block.

[0009] Preferably, sealing rings are provided at the connection between the button and the controller, and at the connection between the moving rod and the controller.

[0010] Preferably, the closing cover and the moving rod are detachably connected.

[0011] The beneficial effects of this invention are as follows: each moving rod corresponds one-to-one with the sampling chamber, allowing independent control of the opening and closing of a single sampling port, meeting the needs of multi-point sampling and independent control, and improving the applicability of the sampler. Users can monitor the sampling volume in real time through the data on the digital display screen and control the sampling port of the target sampling chamber individually by pressing the components, avoiding over- or under-sampling, improving operational convenience and sampling accuracy, and increasing sampling efficiency. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the controller; Figure 3 This is a schematic diagram of the internal structure of the positioning block; Figure 4 This is a schematic diagram of the structure for pressing the button; Figure 5 This is a schematic diagram of the inclined plane cam.

[0014] Symbols in the diagram: 1. Sampler; 2. Controller; 3. Moving rod; 4. Closing cover; 5. Sampling chamber; 6. Positioning block; 7. Digital display screen; 8. Press button; 9. Angled cam; 10. Guide block; 301. Limiting protrusion; 601. Positioning groove; 602. Angled groove; 603. Sliding channel; 604. Locking structure; 801. Triangular groove; 802. Slider; 901. Gear protrusion; 902. Sliding rod. Detailed Implementation

[0015] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0016] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0017] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0018] The present application will now describe a multi-point digital display sampler provided in the embodiments of this application.

[0019] Please see Figure 1 This is a schematic diagram of the structure of the present invention. The multi-point digital display sampler 1 includes a sampler 1; a hollow controller 2 is provided on the adjacent side of the sampler 1, and multiple moving rods 3 arranged parallel to the sampler 1 are slidably connected inside the controller 2. Each moving rod 3 has a closing cover 4 connected to its end; the sampler 1 includes multiple sampling chambers 5, which are coaxially arranged and stacked sequentially. Each sampling chamber 5 has a sampling port on the side facing the controller 2, and each sampling port is slidably engaged with a corresponding closing cover 4; the top of the moving rod 3 abuts against a push assembly that drives its axial movement, and the controller 2 has a positioning block 6 that cooperates with the push assembly to limit the movement of the moving rod 3. Each sampling chamber 5 has a weighing sensor inside and a digital display screen 7 on its surface. The input end of the digital display screen 7 is connected to the output end of the weighing sensor.

[0020] Specifically, in the initial state, the sampling port of each sampling chamber 5 is completely aligned with the closing cover 4, the sampling port is in a closed state, and the moving rod 3 is in the initial position within the controller 2. When the user needs to sample the target sampling chamber 5, they press the corresponding actuating component of the sampling chamber 5, causing the moving rod 3 to slide downwards along the inner wall of the controller 2, simultaneously moving the closed cover 4 connected to it downwards. During the movement, the closed cover 4 gradually moves away from the sampling port, and the open area between them increases with the movement amplitude until the closed cover 4 completely leaves the sampling port, and the sampling port is fully open. During this process, the user can accurately control the size of the open area between the closed cover 4 and the sampling port by controlling the pressing amplitude of the actuating component, thereby regulating the sample entry speed and sampling quantity. Each actuating component can be operated independently, and can control the state of the corresponding moving rod 3 and the sampling port of the corresponding sampling chamber 5 respectively. Each sampling chamber 5 is equipped with a weighing sensor, which monitors the weight of the sample in each chamber in real time and displays it intuitively on the digital display screen 7. Users can monitor the sampling amount in real time through the data on the digital display screen 7, and adjust the opening size of the sampling port and the moving speed of the moving lever 3 in a timely manner to avoid over- or under-sampling, thus improving operational convenience and sampling accuracy. Each moving lever 3 corresponds one-to-one with a sampling chamber 5. Users can individually control the opening degree of the sampling port of the target sampling chamber 5 by pressing the component, meeting the needs of multi-point sampling and independent control, improving experimental efficiency, adapting to the sampling needs of different samples, and expanding the applicability of the sampler 1. By controlling the pressing amplitude of the component, users can adjust the relative position of the closing cover 4 and the sampling port, achieving precise adjustment of the sampling speed and sampling amount of the sampling chamber 5.

[0021] Please see Figure 1 and Figure 2 Furthermore, the positioning block 6 has multiple positioning grooves 601 spaced axially within it. The actuating assembly includes an actuating button 8 movably connected to the top of the controller 2 and an inclined cam 9 abutting against the top of the moving rod 3. The actuating button 8 and the inclined cam 9 are slidably engaged, allowing the inclined cam 9 to slide along the positioning grooves 601. A return spring (not shown in the figure) is also included, sleeved on the moving rod 3. The moving rod 3 has a limiting protrusion 301, and the return spring is located between the bottom of the controller 2 and the limiting protrusion 301, abutting against both. Specifically, the return spring provides an upward elastic force to drive the moving rod 3 and the inclined cam 9 to return to their original positions. When the user presses the actuating button 8, the moving rod 3 moves downward, applying pressure to the return spring through the limiting protrusion 301. When the user releases the actuating button 8, the return spring returns to its original deformation upward, pushing the inclined cam 9 upward.

[0022] Please see Figures 1 to 5Furthermore, the inclined cam 9 has multiple gear protrusions 901 with inclined tops on its circumferential surface, and the bottom of the button 8 has multiple triangular grooves 801 that slide in cooperation with the inclined surfaces of the gear protrusions 901; the bottom of the inner side of the positioning block 6 has multiple inclined grooves 602, and the inclined surfaces of the gear protrusions 901 slide in cooperation with the inclined grooves 602 under the action of the return spring; the surface of the button 8 has multiple sliders 802, and both the sliders 802 and the gear protrusions 901 slide in cooperation with the positioning grooves 601.

[0023] Specifically, the top of the inclined cam 9 is provided with a sliding rod 902, and the button 8 is hollow inside and slidably connected with the sliding rod 902.

[0024] In this embodiment, the pressing principle of the pressing component is similar to that of a ballpoint pen. Each inclined cam 9 has four gear protrusions 901 spaced circumferentially on its surface, and each pressing button 8 has eight sliders 802 spaced circumferentially on its surface, with eight triangular grooves 801 at its bottom. Each positioning block 6 has four positioning grooves 601 spaced apart on its inner wall, forming a sliding channel 603 between adjacent positioning grooves 601, capable of accommodating the axial sliding of the sliders 802 and gear protrusions 901. Each positioning groove 601 has two inclined grooves 602 on its bottom surface, forming a locking structure 604 between adjacent inclined grooves 602 to limit the movement of the gear protrusions 901 on the inclined cam 9.

[0025] When the user presses down on button 8 for the first time, button 8 pushes the inclined cam 9 to slide downwards. At this time, the gear protrusion 901 of the inclined cam 9 and the slider 802 of button 8 both move along the positioning groove 601. The positioning groove 601 limits both of them, so that the triangular groove 801 of button 8 only partially contacts the inclined surface of the gear protrusion 901 of the inclined cam 9. When the gear protrusion 901 completely disengages from the positioning groove 601, the elastic force of the return spring causes the inclined surface of the gear protrusion 901 to fully contact the triangular groove 801. The moving rod 3 drives the closing cover 4 to move downwards, and the sampling port gradually opens. By controlling the downward pressing force and speed, the user can adjust the moving speed of the closing cover 4, thereby adjusting the opening speed of the sampling port and controlling the speed and quantity of sample flowing into the sampling chamber 5.

[0026] When the user releases their grip, the return spring drives the inclined cam 9 to move upwards. The inclined surface of the gear protrusion 901 slides into the inclined groove 602 and engages with the corresponding locking structure 604. At this time, the moving rod 3 drives the closing cover 4 to completely leave the sampling port, and the sampling port is in a fully open state. The limiting effect of the inclined groove 602 on the positioning block 6 limits the moving rod 3, thereby limiting the fully open state of the closing cover 4.

[0027] When the user presses the button 8 again, the button 8 pushes the inclined cam 9 downwards, causing the gear protrusion 901 to disengage from the locking structure 604 and the inclined groove 602. When the gear protrusion 901 is completely out of the inclined groove 602, the return spring pushes the gear protrusion 901 into the next triangular groove 801 on the button 8. When the moving rod 3 moves to its maximum stroke, the user slowly releases the button. Under the elastic force of the return spring, the gear protrusion 901 slides up the inclined groove 602 and enters the sliding channel 603 between the adjacent positioning grooves 601, causing the moving rod 3 and the closing cover 4 to reset, completing the complete closure of the sampling port. By controlling the force and speed of releasing the button, the user can adjust the reset speed of the closing cover 4, thereby adjusting the closing speed of the sampling port and controlling the speed and quantity of sample flowing into the sampling chamber 5.

[0028] During the use of this device, users can easily open and close the sampling port with a simple pressing action, making it easy to operate. A single press is sufficient to switch states, improving sampling efficiency. Users can adjust the opening and closing speed of the sampling port by controlling the pressure applied when pressing and releasing, based on the current weight displayed on the digital display screen 7. This allows for adjustment of the sampling port size, controlling the speed and quantity of sample flowing into the sampling chamber 5, and achieving accurate measurement of the sample volume.

[0029] Specifically, multiple sampling chambers 5 are detachably connected to each other, and each sampling chamber 5 can be disassembled and cleaned individually.

[0030] Specifically, the front end of the sampling chamber 5 is connected to a pointed guide block 10. The pointed structure can be quickly and easily inserted into the sample, reducing resistance during sampling. Furthermore, sealing rings (not shown in the figure) are provided at the connection between the button 8 and the controller 2, and at the connection between the moving rod 3 and the controller 2.

[0031] Furthermore, the closing cover 4 is detachably connected to the moving rod 3.

[0032] The method of using this utility model is as follows: When it is necessary to open the sampling port, the user presses down on the button 8, and the button 8 and the inclined cam 9 move along the positioning groove 601; the moving rod 3 drives the closing cover 4 to move down, and the sampling port gradually opens. When the moving rod 3 moves to its maximum stroke, the user releases the button, and the return spring drives the inclined cam 9 to move up, and the gear protrusion 901 engages in the corresponding locking structure 604, at which point the sampling port is fully open. When it is necessary to close the sampling port, the user presses the button 8 again, and the button 8 pushes the inclined cam 9 down, so that the gear protrusion 901 completely leaves the inclined groove 602. When the moving rod 3 moves to its maximum stroke, the user slowly releases the button, and under the elastic force of the return spring, the gear protrusion 901 slides up along the inclined groove 602 and enters the sliding channel 603 between the adjacent positioning grooves 601, driving the moving rod 3 and the closing cover 4 to move up and reset, completing the closure of the sampling port.

[0033] In this invention, each movable lever 3 corresponds one-to-one with the sampling chamber 5, and can independently control the opening and closing of a single sampling port, meeting the needs of multi-point sampling and independent control of samples, thus improving the applicability of the sampler 1. During sampling, the user can monitor the sampling volume in real time through the data on the digital display screen 7, and individually control the sampling port of the target sampling chamber 5 by pressing the components, avoiding over- or under-sampling, improving operational convenience and sampling accuracy, and increasing sampling efficiency.

[0034] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A multi-point digital display sampler, comprising a sampler; characterized in that: The sampler has a hollow controller on its adjacent side. Multiple movable rods, parallel to the sampler, are slidably connected inside the controller, and each movable rod has a closed cover at its end. The sampler includes multiple sampling chambers, each with a sampling port on its side facing the controller. Each sampling port is slidably engaged with a corresponding closed cover. A push-button assembly abuts the top of each movable rod, driving its axial movement. The controller has a positioning block that cooperates with the push-button assembly to limit the movement of the movable rod. Each sampling chamber has a weighing sensor inside and a digital display screen on its surface. The input end of the digital display screen is connected to the output end of the weighing sensor.

2. The multi-point digital display sampler as described in claim 1, characterized in that: The positioning block has multiple positioning grooves spaced axially. The pressing component includes a pressing button movably connected to the top of the controller and an inclined cam abutting against the top of the moving rod. The pressing button and the inclined cam slide together, allowing the inclined cam to slide along the positioning groove. It also includes a return spring sleeved on the moving rod. The moving rod has a limiting protrusion. The return spring is located between the bottom of the controller and the limiting protrusion, and abuts against both of them.

3. A multi-point digital display sampler as described in claim 2, characterized in that: The inclined cam surface is provided with multiple gear protrusions with inclined tops on the circumferential direction. The bottom end of the push button is provided with multiple triangular grooves that slide in cooperation with the inclined surfaces of the gear protrusions. The bottom inner side of the positioning block is provided with multiple inclined grooves. The inclined surfaces of the gear protrusions slide in cooperation with the inclined grooves under the action of the return spring. The push button surface is provided with multiple sliders on the circumferential direction. The sliders and the gear protrusions slide in cooperation with the positioning grooves.

4. A multi-point digital display sampler as described in claim 3, characterized in that: The inclined cam has a sliding rod at its top, and the button is hollow inside and slidably connected to the sliding rod.

5. A multi-point digital display sampler as described in claim 1, characterized in that: The multiple sampling chambers are detachably connected to each other.

6. A multi-point digital display sampler as described in claim 1, characterized in that: The front end of the sampling chamber located at the very front is connected to a pointed guide block.

7. A multi-point digital display sampler as described in claim 2, characterized in that: Sealing rings are provided at the connection points of the push button and the controller, and at the connection points of the moving rod and the controller.

8. A multi-point digital display sampler as described in claim 1, characterized in that: The closing cover is detachably connected to the moving rod.

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