An automatic droplet device

Abstract

The utility model provides an automatic liquid dropping device, including base, the base upper surface front half part is provided with the glass slide limiting piece, the base upper surface rear half part fixedly installed has the guide, the guide is connected with the support frame on the sliding, support frame bottom is provided with horizontal shift drive part, support frame front side detachable installation has the liquid drop subassembly, the extrusion subassembly is passed through and is provided with in support frame, and the extrusion subassembly lower half part is provided with the rotary limiting piece between support frame. The utility model has the advantages of automatic liquid dropping, convenient control liquid drop amount, liquid drop effect stable.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to an automatic dripping device. Background Technology

[0002] When testing blood, blood needs to be dropped onto a glass slide and then spread evenly to form a single-cell layer. Next, test reagents need to be dropped onto the slide. In current technology, this is done manually using a Pasteur dropper to drop the reagent in the center of the slide. Since the single-cell layer formed in the center of the slide is relatively stable, it needs to be dropped precisely in the center. Manual operation is prone to error. Furthermore, the area covered by each drop is inconsistent, which can easily lead to inaccurate results.

[0003] Chinese patent application date: May 23, 2022, publication number: CN217901327U, discloses a slide dripping device, particularly relating to the field of medical testing instruments. It includes a base and a lifting mechanism mounted on the base. A dropper fixing component is mounted on the lifting mechanism, and a slide holder is mounted on the base corresponding to the dropper fixing component. This application provides the advantage of easily controlling the dripping height.

[0004] In this technical solution, the positioning component can ensure that the droplet is dropped at the center of the slide. However, it requires manual squeezing of the dropper, and it is difficult to keep the squeezing force consistent each time, which can easily cause the droplet area to be different on different slides. Therefore, further improvements can be made. Utility Model Content

[0005] In order to solve the problems existing in the background art, this utility model proposes an automatic dripping device.

[0006] An automatic liquid dispensing device includes a base, a glass slide limiting member is provided on the front half of the upper surface of the base, a guide rail is fixedly installed on the rear half of the upper surface of the base, a support frame is slidably connected on the guide rail, a transverse drive member is provided at the bottom of the support frame, a liquid dispensing assembly is detachably installed on the front side of the support frame, a squeezing assembly is provided through the support frame, and a rotation limiting member is provided between the lower half of the squeezing assembly and the support frame.

[0007] Based on the above, the slide limiting component includes a horizontal bar fixedly installed in the middle of the upper surface of the base, a spacer bar arrayed on the front half of the upper surface of the base, a slide placed between two adjacent spacers, two sliding grooves opened on the front half of the upper surface of the base, a push plate attached to the upper surface of the base, sliders fixedly installed at the bottom of both ends of the push plate, the sliders slidably connected in the sliding grooves, and clearance grooves arrayed at the bottom of the push plate, the push plate slidably connected to the spacer bar through the clearance grooves.

[0008] Based on the above, the array spacing of the spacers is equal to the length of the glass slide, and a discharge port is reserved between the rear end of the spacers and the crossbars, with the width of the discharge port being equal to the width of the glass slide.

[0009] Based on the above, the support frame includes a slide block slidably connected to a guide rail. A mounting plate is welded to the front end of the slide block, and the mounting plate is perpendicular to the slide block. Two guide grooves are formed through the surface of the mounting plate. The transverse drive component includes a motor fixedly installed on the right side of the base. A threaded rod is connected to the left output end of the motor. A transverse plate is provided on the rear half of the upper surface of the base. The transverse plate is threadedly connected to the threaded rod. An inclined groove and a straight groove are formed on the upper surface of the transverse plate. The front end of the inclined groove communicates with the left end of the straight groove. A sliding column is fixedly installed on the rear side of the top of the mounting plate. The sliding column passes through the slide block, and the bottom end of the sliding column is slidably connected in the inclined groove and the straight groove.

[0010] Based on the above, the dripping assembly includes a slot fixedly installed on the front side of the support frame, an insert plate inserted into the slot, the insert plate being inverted L-shaped, a support plate welded to the front top of the slot, and the support plate fitting against the bottom of the horizontal portion of the insert plate; an array of syringes are fixedly fixed on the front end of the insert plate, and a piston is slidably connected inside the syringe, with the top ends of the pistons fixedly installed through a connecting plate.

[0011] Based on the above, the extrusion assembly includes a sleeve fitted on the outside of the slide column, the outer wall of the sleeve is provided with threads, a U-shaped frame is threadedly connected to the sleeve, the U-shaped frame is slidably connected through the guide groove, the sleeve is rotatably connected through the slide block, a gear is fixedly installed at the bottom end of the sleeve, a rack plate is fixedly installed at the top of the transverse plate, the rack plate is located behind the straight groove and is parallel to the straight groove, the gear meshes with the rack plate, and a distance sensor is fixedly installed on the front side of the top of the mounting plate.

[0012] Based on the above, the rotation limiting component is fixedly installed on the arc-shaped plate at the top of the slide block. The arc-shaped plate is attached to the right side of the sleeve. A crossbar is slidably connected through both ends of the arc-shaped plate. A friction plate is fixedly installed at the left end of the crossbar. A spring is fixedly installed between the right end of the crossbar and the arc-shaped plate. The friction plate is attached to the left side of the sleeve.

[0013] This invention has substantial features and advancements compared to existing technologies. Specifically, by moving the transverse plate to the left, the inclined groove sidewall squeezes the sliding column, allowing the syringe to move directly above the center of the glass slide. The transverse plate continues to move to the left, and the rack plate drives the gear to rotate, thereby driving the U-shaped frame to push the connecting plate downward. At the same time, a distance sensor detects the downward movement of the connecting plate, ensuring that the amount of liquid dripped from the bottom of multiple syringes is equal. This invention has the advantages of automatic dripping, easy control of dripping volume, and stable dripping effect. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the rear view of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the base and glass slide limiting component of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the transverse sliding plate and the sliding column of this utility model.

[0018] Figure 5 This is a three-dimensional structural diagram of the extrusion assembly and rotation limiting component of this utility model.

[0019] Figure 6 This is a three-dimensional structural diagram of the dripping component of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 100, base; 200, slide holder; 300, guide rail; 400, support frame; 500, transverse drive; 600, dripping assembly; 700, squeezing assembly; 800, rotation limiter; 201. Horizontal bar; 202. Spacer bar; 203. Slide groove; 204. Push plate; 205. Slider; 206. Clearance groove; 401. Slide; 402. Mounting plate; 403. Guide groove; 501. Motor; 502. Threaded rod; 503. Transverse plate; 504. Inclined groove; 505. Straight groove; 506. Sliding column; 601, slot; 602, insert plate; 603, support plate; 604, syringe; 605, piston; 606, connecting plate; 701. Sleeve; 702. U-shaped frame; 703. Gear; 704. Rack plate; 705. Distance sensor; 801. Arc plate; 802. Crossbar; 803. Friction plate; 804. Spring. Detailed Implementation

[0021] 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 some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1-6As shown, an automatic liquid dispensing device includes a base 100. A slide positioning member 200 is provided on the front half of the upper surface of the base 100, which limits the placement of the slides, ensuring that multiple slides are equidistantly distributed on the top of the base 100. A guide rail 300 is fixedly mounted on the rear half of the upper surface of the base 100. A support frame 400 is slidably connected to the guide rail 300. A transverse drive member 500 is provided at the bottom of the support frame 400, which drives the support frame 400 to slide along the guide rail 300. A liquid dispensing assembly 600 is detachably mounted on the front side of the support frame 400. A squeezing assembly 700 is disposed through the support frame 400. A rotation limiting member 800 is provided between the lower half of the squeezing assembly 700 and the support frame 400.

[0023] In use, the slide limiting component 200 includes a horizontal bar 201 fixedly installed in the middle of the upper surface of the base 100. Spacers 202 are arrayed on the front half of the upper surface of the base 100, with a slide placed between adjacent spacers 202. The array spacing of the spacers 202 is equal to the length of the slide, allowing the spacers 202 to limit the slide in the left-right direction. Two sliding grooves 203 are formed in the front half of the upper surface of the base 100. A push plate 204 is attached to the upper surface of the base 100. Slider blocks 205 are fixedly installed at both ends of the push plate 204. The sliders 205 are slidably connected within the sliding grooves 203. The cross-section of the sliders 205 is convex to prevent them from detaching from the sliding grooves 203. Alternating grooves 206 are arrayed at the bottom of the push plate 204, through which the push plate 204 is slidably connected to the spacers 202. A discharge port is reserved between the rear end of the spacer 202 and the crossbar 201, and the width of the discharge port is equal to the width of the glass slide.

[0024] Multiple slides can be pre-placed between the spacers 202, and then the pusher 204 is pushed backward along the slide groove 203, thereby moving the slides backward between the two spacers 202 until the slides are attached to the crossbar 201. The spacers 202, by separating the slides, ensure that multiple slides are equidistantly distributed on the front side of the crossbar 201. After the liquid is dispensed, the slides can be pushed left-right to move them along the length of the crossbar 201 and transfer them from between the crossbar 201 and the spacers 202.

[0025] Specifically, the support frame 400 includes a slide block 401 slidably connected to the guide rail 300. A mounting plate 402 is welded to the front end of the slide block 401, perpendicular to the slide block 401. Two guide grooves 403 are formed through the surface of the mounting plate 402. The transverse drive component 500 includes a motor 501 fixedly mounted on the right side of the base 100. The motor 501 is model 1FL6064-1AC61-2AB1. A threaded rod 502 is connected to the left output end of the motor 501. A transverse plate 503 is provided on the rear half of the upper surface of the base 100, fitting against the top of the base 100 and threadedly connected to the threaded rod 502. The motor 501 drives the threaded rod 502 to rotate, causing the transverse plate 503 to move left or right against the top of the base 100.

[0026] The upper surface of the transverse sliding plate 503 has an inclined groove 504 and a straight groove 505. The front end of the inclined groove 504 is connected to the left end of the straight groove 505. A sliding column 506 is fixedly installed on the rear side of the top of the mounting plate 402. The sliding column 506 passes through the slide block 401, and its bottom end is slidably connected within the inclined groove 504 and the straight groove 505. When the threaded rod 502 drives the transverse sliding plate 503 to move to the left, the transverse sliding plate 503, located on the side wall of the inclined groove 504, presses against the sliding column 506, causing the support frame 400 to move forward along the guide rail 300. When the sliding column 506 slides into the straight groove 505, the transverse sliding plate 503 continues to move to the left, but the support frame 400 remains relatively stationary with respect to the guide rail 300. In practice, when the sliding column 506 slides into the straight groove 505, the dripping assembly 600 is directly above the center of the glass slide.

[0027] The drip assembly 600 includes a slot 601 fixedly mounted on the front side of a support frame 400. An insert plate 602, in an inverted L-shape, is inserted into the slot 601. A support plate 603 is welded to the top front side of the slot 601, and the support plate 603 fits against the bottom of the horizontal portion of the insert plate 602. The support plate 603 supports the horizontal portion of the insert plate 602, ensuring stability after insertion into the slot 601. An array of syringes 604 are fixedly mounted on the front end of the insert plate 602. Pistons 605 are slidably connected within the syringes 604, and their tops are fixedly mounted via a connecting plate 606. The connecting plate 606 allows multiple pistons 605 to slide synchronously within the syringes 604.

[0028] In reality, the extrusion assembly 700 includes a sleeve 701 fitted onto the outside of the slide column 506. The outer wall of the sleeve 701 is threaded, and a U-shaped bracket 702 is threadedly connected to the sleeve 701. The U-shaped bracket 702 is slidably connected within the guide groove 403. The sleeve 701 is rotatably connected to the slide block 401. A gear 703 is fixedly installed at the bottom end of the sleeve 701. A rack plate 704 is fixedly installed on the top of the transverse plate 503. The rack plate 704 is located behind the straight groove 505 and is parallel to the straight groove 505. The gear 703 meshes with the rack plate 704. A distance sensor 705 is fixedly installed on the front top of the mounting plate 402. The distance sensor 705 is located directly above the connecting plate 606.

[0029] As the sliding column 506 slides into the straight groove 505 and the transverse plate 503 continues to move to the left, the rack plate 704 contacts and meshes with the gear 703, causing the gear 703 and the sleeve 701 to rotate. This, in turn, causes the U-shaped frame 702 to move downward along the guide groove 403, pushing the connecting plate 606 downward. Simultaneously, the distance sensor 705 detects the distance between the connecting plate 606 and the U-shaped frame 702, thus controlling the amount of liquid squeezed out of the syringe 604. In practice, the distance sensor 705 and the motor 501 are connected to a PLC controller. The distance sensor 705 detects the downward movement of the connecting plate 606 and sends a signal to the PLC controller, which then controls the motor 501 to stop.

[0030] A rotation limiter 800 is fixedly installed on the arc-shaped plate 801 at the top of the slide block 401. The arc-shaped plate 801 is attached to the right side of the sleeve 701. A crossbar 802 is slidably connected through both ends of the arc-shaped plate 801. A friction plate 803 is fixedly installed at the left end of the crossbar 802, and a spring 804 is fixedly installed between the right end of the crossbar 802 and the arc-shaped plate 801. The friction plate 803 is attached to the left side of the sleeve 701. The friction between the friction plate 803 and the arc-shaped plate 801 on the sleeve 701 prevents the sleeve 701 from rotating accidentally.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An automatic dripping device, characterized in that: Includes a base (100), the front half of the upper surface of the base (100) is provided with a glass slide limiting member (200), the rear half of the upper surface of the base (100) is fixedly installed with a guide rail (300), a support frame (400) is slidably connected on the guide rail (300), and a transverse drive member (500) is provided at the bottom of the support frame (400). A dripping assembly (600) is provided on the front side of the support frame (400), and a squeezing assembly (700) is provided through the support frame (400). A rotation limiting member (800) is provided between the lower half of the squeezing assembly (700) and the support frame (400).

2. The automatic dripping device according to claim 1, characterized in that: The slide limiting component (200) includes a horizontal bar (201) fixedly installed in the middle of the upper surface of the base (100). The front half of the upper surface of the base (100) is provided with spacers (202), and a slide is placed between two adjacent spacers (202). The front half of the upper surface of the base (100) has two sliding grooves (203). A push plate (204) is attached to the upper surface of the base (100). A slider (205) is fixedly installed at the bottom of both ends of the push plate (204). The slider (205) is slidably connected in the sliding groove (203). An avoidance groove (206) is provided at the bottom of the push plate (204). The push plate (204) is slidably connected to the spacer (202) through the avoidance groove (206).

3. The automatic dripping device according to claim 2, characterized in that: The array spacing of the spacers (202) is equal to the length of the glass slide. A discharge port is reserved between the rear end of the spacers (202) and the crossbar (201), and the width of the discharge port is equal to the width of the glass slide.

4. The automatic dripping device according to claim 1, characterized in that: The support frame (400) includes a slide (401) slidably connected to the guide rail (300). A mounting plate (402) is welded to the front end of the slide (401). The mounting plate (402) is perpendicular to the slide (401). Two guide grooves (403) are formed through the surface of the mounting plate (402). The transverse drive (500) includes a motor (501) fixedly installed on the right side of the base (100), a threaded rod (502) connected to the left output end of the motor (501), and a transverse plate (503) provided on the rear half of the upper surface of the base (100), the transverse plate (503) being threadedly connected to the threaded rod (502). The upper surface of the transverse plate (503) is provided with an inclined groove (504) and a straight groove (505). The front end of the inclined groove (504) is connected to the left end of the straight groove (505). A sliding column (506) is fixedly installed on the rear side of the top of the mounting plate (402). The sliding column (506) passes through the slide block (401). The bottom end of the sliding column (506) is slidably connected in the inclined groove (504) and the straight groove (505).

5. The automatic dripping device according to claim 1, characterized in that: The dripping assembly (600) includes a slot (601) fixedly installed on the front side of the support frame (400), a plug plate (602) is inserted into the slot (601), the plug plate (602) is inverted L shape, and a support plate (603) is welded to the front top of the slot (601), the support plate (603) is attached to the bottom of the horizontal part of the plug plate (602); An injection cylinder (604) is fixedly arranged on the front end of the insert plate (602), and a piston (605) is slidably connected inside the injection cylinder (604). The top ends of the pistons (605) are fixedly installed through a connecting plate (606).

6. The automatic dripping device according to claim 4, characterized in that: The extrusion assembly (700) includes a sleeve (701) sleeved on the outside of the slide column (506). The outer wall of the sleeve (701) is provided with threads. A U-shaped frame (702) is threadedly connected to the sleeve (701). The U-shaped frame (702) is slidably connected in the guide groove (403). The sleeve (701) is rotatably connected to the slide block (401). A gear (703) is fixedly installed at the bottom end of the sleeve (701). A rack plate (704) is fixedly installed on the top of the transverse plate (503). The rack plate (704) is located behind the straight groove (505) and is parallel to the straight groove (505). The gear (703) meshes with the rack plate (704). A distance sensor (705) is fixedly installed on the front side of the top of the mounting plate (402).

7. The automatic dripping device according to claim 6, characterized in that: The rotation limiter (800) is fixedly installed on the arc plate (801) on the top of the slide (401). The arc plate (801) is attached to the right side of the sleeve (701). A crossbar (802) is slidably connected through both ends of the arc plate (801). A friction plate (803) is fixedly installed on the left end of the crossbar (802). A spring (804) is fixedly installed between the right end of the crossbar (802) and the arc plate (801). The friction plate (803) is attached to the left side of the sleeve (701).

Images