Leak-proof mechanical liquid quantitative extraction equipment

Abstract

The invention discloses anti-leakage mechanical quantitative liquid extraction equipment which comprises a bottom plate, the bottom of the bottom plate is fixedly connected with a plurality of evenly-distributed supporting rods, the top of the bottom plate is fixedly connected with a support, the top of the support is fixedly connected with a hydraulic cylinder, and the output end of the hydraulic cylinder is slidably connected with the support. The lower end of the output end of the hydraulic cylinder is fixedly connected with a motor, the lower end of the output end of the motor is fixedly connected with a connecting sleeve, the outer side of the connecting sleeve is fixedly sleeved with a connecting base, the right end of the connecting base is fixedly connected with a tank body, the lower end of the tank body is fixedly connected with a material head, and the material head is provided with an electromagnetic valve. An extraction mechanism is arranged on the tank body, a limiting mechanism is arranged on the extraction mechanism, and a rotating mechanism is arranged on the connecting sleeve. The invention relates to leakage-proof mechanical liquid-taking quantitative extraction equipment which has the characteristics that the quantitative liquid taking amount can be conveniently adjusted, and liquid can be conveniently taken from different positions.

Description

Technical Field

[0001] The invention belongs to the technical field of extraction equipment, and in particular relates to a leak-proof mechanical liquid quantitative extraction equipment. Background Art

[0002] A quantitative liquid sampling device is a device used to accurately measure and remove liquid samples. This device is often used in laboratories, medical and pharmaceutical fields to remove precise volumes of liquid samples for analysis, testing or experiments. The advantages of quantitative liquid sampling devices include accurate sampling, easy operation, good repeatability, and avoidance of human errors. They are widely used in chemical analysis, biomedical research, drug development and other fields, and are one of the indispensable tools in laboratory work.

[0003] The current quantitative liquid extraction device is not convenient to adjust the liquid volume during quantitative liquid extraction, and is not convenient to extract liquid at different positions, and is not convenient to operate. Therefore, it is necessary to design a leakproof mechanical liquid extraction quantitative extraction device. Summary of the invention The purpose of the present invention is to provide a leakproof mechanical liquid quantitative extraction device in order to solve the above problems, thereby solving the problems mentioned in the background technology.

[0005] In order to solve the above problems, the present invention provides a technical solution: A leakproof mechanical liquid quantitative extraction device comprises a base plate, a plurality of evenly distributed support rods are fixedly connected to the bottom of the base plate, a bracket is fixedly connected to the top of the base plate, a hydraulic cylinder is fixedly connected to the top of the bracket, the output end of the hydraulic cylinder is slidably connected to the bracket, the lower end of the output end of the hydraulic cylinder is fixedly connected to a motor, the lower end of the output end of the motor is fixedly connected to a connecting sleeve, the outer side of the connecting sleeve is fixedly sleeved with a connecting seat, the right end of the connecting seat is fixedly connected to a tank body, the lower end of the tank body is fixedly connected to a material head, the material head is provided with a solenoid valve, the tank body is provided with an extraction mechanism, the extraction mechanism is provided with a limiting mechanism, and the connecting sleeve is provided with a rotating mechanism.

[0006] Preferably, the extraction mechanism comprises an electric push rod, the top of the tank body is fixedly connected with an electric push rod, the output end of the electric push rod is slidably connected to the tank body, the lower end of the output end of the electric push rod is fixedly connected to a push-pull rod, the outer side of the push-pull rod is slidably sleeved with a baffle, the baffle is slidably connected to the tank body, the bottom of the push-pull rod is fixedly connected with a piston plate, the piston plate is slidably connected to the tank body, the inside of the tank body is fixedly connected with a guide rod, the guide rod is slidably connected to the baffle, the outer side of the guide rod is slidably sleeved with a sealing ring 1, the sealing ring 1 is fixedly connected to the piston plate, the inside of the tank body is rotatably connected with a screw rod through a bearing, the screw and the baffle are threadedly connected, the outer side of the screw is movably sleeved with a sealing ring 2, the sealing ring 2 is fixedly connected to the piston plate, the outer side of the screw is fixedly sleeved with a first bevel gear, the outer side of the first bevel gear is meshed with a second bevel gear, the right end of the second bevel gear is fixedly connected with a rotating shaft, the rotating shaft and the tank body are rotatably connected through a bearing, and the right end of the rotating shaft is fixedly connected with a handle. By designing the extraction mechanism, quantitative liquid extraction can be achieved.

[0007] Preferably, the limiting mechanism includes a slot, the shaft has a slot inside, a plug rod is slidably connected inside the slot, the upper end of the plug rod is fixedly connected to a pull rod, the outer side of the shaft is rotatably sleeved with a fixed seat, the fixed seat is fixedly connected to the tank body, the plug rod and the pull rod are both slidably connected to the fixed seat, the outer side of the pull rod is fixedly connected with a slider, the slider is slidably connected to the fixed seat, the inner side of the slider is slidably sleeved with a fixed rod, the fixed rod is fixedly connected to the fixed seat, and a first spring is arranged on the outer side of the fixed rod. By designing a limiting mechanism, the baffle position can be limited and fixed.

[0008] Preferably, the number of the slots is multiple, and the multiple slots are annular and continuously and evenly distributed inside the rotating shaft. By designing multiple slots, the insertion rod can be inserted into the slots at different positions.

[0009] Preferably, one end of the first spring is fixedly connected to the slider, and the other end of the first spring is fixedly connected to the fixing seat. By designing the first spring, the force of the first spring can act on the slider.

[0010] Preferably, the rotating mechanism comprises a square rod, the connecting sleeve is slidably sleeved with a square rod, the lower end of the square rod is fixedly connected with a rotating seat, the rotating seat is rotatably connected with the bottom plate, the outer side of the rotating seat is rotatably sleeved with a limit seat through a bearing, the limit seat is fixedly connected with the bottom plate, a groove is provided inside the limit seat, a ball is movably sleeved inside the groove, a rubber block is fixedly connected inside the groove, the rubber block contacts the ball, the ball is rotatably connected with the rotating seat, the outer side of the ball is movably sleeved with a sliding seat, the sliding seat is slidably connected with the rotating seat, the inner sliding sleeve of the sliding seat is connected with a connecting rod, the connecting rod is fixedly connected with the rotating seat, a second spring is arranged outside the connecting rod, a guide wheel is arranged at the bottom of the sliding seat, the guide wheel is slidably connected with the rotating seat. By designing the rotating mechanism, the position of the material head can be rotatably adjusted.

[0011] Preferably, the number of the grooves is multiple, and the multiple grooves are evenly distributed inside the limiting seat. By designing multiple grooves, the ball can roll into the grooves at different positions.

[0012] Preferably, one end of the second spring is fixedly connected to the rotating seat, and the other end of the second spring is fixedly connected to the sliding seat. By designing the second spring, the force of the second spring can act on the sliding seat.

[0013] The beneficial effects of the present invention are as follows: the present invention relates to a leakproof mechanical type liquid quantitative extraction device, which has the characteristics of convenient adjustment of the quantitative liquid extraction amount and convenient liquid extraction at different positions. In specific use, compared with the traditional leakproof mechanical type liquid quantitative extraction device, the leakproof mechanical type liquid quantitative extraction device has the following beneficial effects: Firstly, by designing the function of the electric push rod, the output end of the electric push rod can drive the piston plate to move, so that a negative pressure state can be formed inside the tank body, and the liquid can be extracted. During the extraction process, the moving distance of the piston plate can be limited under the restriction of the baffle, so as to achieve the purpose of quantitative extraction, and the position of the baffle can be adjusted by rotating the rotating shaft, so as to adjust the amount of liquid to be taken. By plugging the plug block into the slot, the rotating shaft can be limited, and then the baffle can be limited to avoid the movement of the baffle affecting the quantitative liquid extraction effect, and the electromagnetic valve is arranged on the material head to achieve the purpose of preventing liquid leakage; Secondly, by designing the function of the motor, the output end of the motor can drive the connecting sleeve and the tank body to rotate, which is convenient for adjusting the position of the material head and flexible for adjusting the liquid collection position. When the connecting sleeve rotates, it will drive the square rod and the rotating seat to rotate. The rotating seat can rotate along the limit seat. After the rotation of the rotating seat is completed, the rotating seat can be limited by plugging the ball and the groove, which can realize precise adjustment of the material head and improve its use effect. BRIEF DESCRIPTION OF THE DRAWINGS For ease of explanation, the present invention is described in detail with reference to the following specific implementations and the accompanying drawings.

[0015] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A three-dimensional cross-sectional view of the local structure of the tank; Figure 3 For the present invention Figure 2 A magnified image of point A; Figure 4 For the present invention Figure 2 A magnified view of point B; Figure 5 For the present invention Figure 4 A front cross-sectional view of a fixing seat; Figure 6 For the present invention Figure 2 Front view of the limit seat.

[0016] In the figure: 1, bottom plate; 2, support rod; 3, bracket; 4, hydraulic cylinder; 5, motor; 6, connecting sleeve; 7, extraction mechanism; 8, limit mechanism; 9, rotation mechanism; 10, connecting seat; 11, tank body; 12, material head; 71, electric push rod; 72, push-pull rod; 73, baffle; 74, piston plate; 75, guide rod; 76, sealing ring 1; 77, screw; 78, sealing ring 2; 79, first bevel gear wheel; 791, second bevel gear; 792, rotating shaft; 793, handle; 81, slot; 82, plug rod; 83, pull rod; 84, fixed seat; 85, slider; 86, fixed rod; 87, first spring; 91, square rod; 92, rotating seat; 93, limit seat; 94, rubber block; 95, ball bearing; 96, slide seat; 97, connecting rod; 98, second spring; 99, guide wheel; 991, groove. DETAILED DESCRIPTION like Figure 1-6 As shown, this specific implementation adopts the following technical solutions: Example: A leakproof mechanical liquid quantitative extraction device comprises a base plate 1, a plurality of evenly distributed support rods 2 are fixedly connected to the bottom of the base plate 1, a bracket 3 is fixedly connected to the top of the base plate 1, a hydraulic cylinder 4 is fixedly connected to the top of the bracket 3, an output end of the hydraulic cylinder 4 is slidably connected to the bracket 3, a motor 5 is fixedly connected to the lower end of the output end of the hydraulic cylinder 4, a connecting sleeve 6 is fixedly connected to the lower end of the output end of the motor 5, a connecting seat 10 is fixedly sleeved on the outer side of the connecting sleeve 6, a tank body 11 is fixedly connected to the right end of the connecting seat 10, a material head 12 is fixedly connected to the lower end of the tank body 11, a solenoid valve is arranged on the material head 12, an extraction mechanism 7 is arranged on the tank body 11, a limiting mechanism 8 is arranged on the extraction mechanism 7, and a rotating mechanism 9 is arranged on the connecting sleeve 6.

[0018] The extraction mechanism 7 includes an electric push rod 71, the top of the tank body 11 is fixedly connected with the electric push rod 71, the output end of the electric push rod 71 is slidably connected to the tank body 11, the lower end of the output end of the electric push rod 71 is fixedly connected with a push-pull rod 72, the outer side of the push-pull rod 72 is slidably sleeved with a baffle 73, the baffle 73 is slidably connected to the tank body 11, the bottom of the push-pull rod 72 is fixedly connected with a piston plate 74, the piston plate 74 is slidably connected to the tank body 11, the inside of the tank body 11 is fixedly connected with a guide rod 75, the guide rod 75 is slidably connected to the baffle 73, and the outer side of the guide rod 75 is slidably sleeved with a sealing ring. 76, the sealing ring 1 76 is fixedly connected to the piston plate 74, the inside of the tank body 11 is rotatably connected with a screw 77 through a bearing, the screw 77 is threadedly connected to the baffle 73, the outer side of the screw 77 is movably sleeved with a sealing ring 2 78, the sealing ring 2 78 is fixedly connected to the piston plate 74, the outer side of the screw 77 is fixedly sleeved with a first bevel gear 79, the outer side of the first bevel gear 79 is meshed with a second bevel gear 791, the right end of the second bevel gear 791 is fixedly connected with a rotating shaft 792, the rotating shaft 792 is rotatably connected to the tank body 11 through a bearing, and the right end of the rotating shaft 792 is fixedly connected with a handle 793. By designing the extraction mechanism 7, quantitative liquid extraction can be achieved.

[0019] The limiting mechanism 8 includes a slot 81, a slot 81 is provided inside the rotating shaft 792, a plug rod 82 is slidably connected inside the slot 81, the number of the slots 81 is multiple, and the multiple slots 81 are annular and continuously and evenly distributed inside the rotating shaft 792. By designing multiple slots 81, the plug rod 82 can be inserted into the slots 81 at different positions. The upper end of the plug rod 82 is fixedly connected to a pull rod 83, and the outer side of the rotating shaft 792 is rotatably sleeved with a fixed seat 84, and the fixed seat 84 is fixedly connected to the tank body 11, and the plug rod 82 and the pull rod 83 are both connected to the fixed seat 8 4 sliding connection, the outer side of the pull rod 83 is fixedly connected with a slider 85, the slider 85 is slidably connected with the fixing seat 84, the inner side of the slider 85 is slidably sleeved with a fixing rod 86, the fixing rod 86 is fixedly connected with the fixing seat 84, and the outer side of the fixing rod 86 is provided with a first spring 87, one end of the first spring 87 is fixedly connected with the slider 85, and the other end of the first spring 87 is fixedly connected with the fixing seat 84. By designing the first spring 87, the force of the first spring 87 can act on the slider 85, and by designing the limiting mechanism 8, the position of the baffle 73 can be limited and fixed.

[0020] The rotating mechanism 9 comprises a square rod 91, the square rod 91 is slidably sleeved inside the connecting sleeve 6, a rotating seat 92 is fixedly connected to the lower end of the square rod 91, the rotating seat 92 is rotatably connected to the base plate 1, the outer side of the rotating seat 92 is rotatably sleeved to a limit seat 93 through a bearing, the limit seat 93 is fixedly connected to the base plate 1, a groove 991 is provided inside the limit seat 93, a ball 95 is movably sleeved inside the groove 991, the number of the grooves 991 is multiple, and the multiple grooves 991 are evenly distributed inside the limit seat 93, and the ball 95 can roll into the grooves 991 at different positions by designing multiple grooves 991, a rubber block 94 is fixedly connected inside the groove 991, and the rubber block 94 It contacts with the ball 95, and the ball 95 is rotatably connected with the rotating seat 92. The outer side of the ball 95 is movably sleeved with a slide seat 96, and the slide seat 96 is slidably connected with the rotating seat 92. The inner side of the slide seat 96 is slidably sleeved with a connecting rod 97, and the connecting rod 97 is fixedly connected with the rotating seat 92. A second spring 98 is provided on the outer side of the connecting rod 97, and one end of the second spring 98 is fixedly connected with the rotating seat 92, and the other end of the second spring 98 is fixedly connected with the slide seat 96. By designing the second spring 98, the force of the second spring 98 can act on the slide seat 96. A guide wheel 99 is provided at the bottom of the slide seat 96, and the guide wheel 99 is slidably connected with the rotating seat 92. By designing the rotating mechanism 9, the position of the material head 12 can be rotated and adjusted.

[0021] The use state of the present invention is: during use, when liquid needs to be taken, the hydraulic cylinder 4 is started first, and the output end of the hydraulic cylinder 4 drives the motor 5 to move downward, and the motor 5 drives the connecting sleeve 6 to move downward, and the connecting sleeve 6 will slide along the square rod 91, so that the connecting seat 10 drives the tank body 11 to move downward and extend the material head 12 into the liquid, and then the electric push rod 71 is started, and the output end of the electric push rod 71 drives the push-pull rod 72 and the piston plate 74 to move upward. The movement of the piston plate 74 can form a negative pressure state inside the tank body 11, and the liquid can be extracted. During the extraction process, the moving distance of the piston plate 74 can be limited under the restriction of the baffle 73, so as to achieve the purpose of quantitative extraction, and an electromagnetic valve is arranged on the material head 12 to achieve the purpose of preventing liquid leakage.

[0022] When the amount of liquid to be taken needs to be adjusted, the pull rod 83 is first pulled up, and the pull rod 83 drives the slider 85 to slide along the fixed rod 86 and squeeze the first spring 87. At the same time, the pull rod 83 drives the plug rod 82 to move up and separate from the slot 81. Then, the handle 793 is turned, and the handle 793 drives the rotating shaft 792 to rotate, and the rotating shaft 792 drives the second bevel gear 791 to rotate, so that the first bevel gear 79 drives the screw 77 to rotate, and the baffle 73 makes a threaded motion. The baffle 73 slides along the guide rod 75, so that the baffle 73 slides inside the tank body 11, and the position of the baffle 73 can be adjusted to facilitate the adjustment of the amount of liquid taken. When the adjustment is completed, the plug rod 82 is reset so that the plug rod 82 is inserted into the slot 81 at another position, and the rotating shaft 792 can be limited, and then the baffle 73 can be limited to prevent the movement of the baffle 73 from affecting the quantitative liquid taking effect.

[0023] When the liquid taking position needs to be adjusted, the motor 5 is started, and the motor 5 drives the connecting sleeve 6 to rotate, thereby driving the tank body 11 and the material head 12 to rotate, so as to facilitate the position adjustment of the material head 12 and the flexible adjustment of the liquid taking position. When the connecting sleeve 6 rotates, the connecting sleeve 6 will drive the square rod 91 to rotate, the square rod 91 will drive the rotating seat 92 to rotate, the rotating seat 92 will drive the ball 95 to rotate, the ball 95 will slide along the arc surface of the groove 991, the ball 95 will be squeezed and pushed to roll inside the rotating seat 92, the ball 95 will drive the slide seat 96 to move, the slide seat 96 drives the guide wheel 99 to move, and at the same time the slide seat 96 will slide along the connecting rod 97 and squeeze the second spring 98, so that the ball 95 can be separated from the groove 991. As the ball 95 rotates, the elastic action of the second spring 98 will give the slide seat 96 a reverse thrust, so that the ball 95 can be pushed into the groove 991 at another position. By plugging the ball 95 into the groove 991, the rotating seat 92 can be limited, and the material head 12 can be accurately adjusted to improve its use effect.

[0024] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A leakproof mechanical liquid quantitative extraction device, comprising a bottom plate (1), characterized in that: The bottom of the base plate (1) is fixedly connected to a plurality of evenly distributed support rods (2); the top of the base plate (1) is fixedly connected to a bracket (3); the top of the bracket (3) is fixedly connected to a hydraulic cylinder (4); the output end of the hydraulic cylinder (4) is slidably connected to the bracket (3); the lower end of the output end of the hydraulic cylinder (4) is fixedly connected to a motor (5); the lower end of the output end of the motor (5) is fixedly connected to a connecting sleeve (6); the outer side of the connecting sleeve (6) is fixedly sleeved with a connecting seat (10); the right end of the connecting seat (10) is fixedly connected to a tank body (11); the lower end of the tank body (11) is fixedly connected to a material head (12); a solenoid valve is provided on the material head (12); an extraction mechanism (7) is provided on the tank body (11); a limit mechanism (8) is provided on the extraction mechanism (7); and a rotating mechanism (9) is provided on the connecting sleeve (6).

2. A leakproof mechanical liquid quantitative extraction device according to claim 1, characterized in that: The extraction mechanism (7) comprises an electric push rod (71), the top of the tank body (11) is fixedly connected to the electric push rod (71), the output end of the electric push rod (71) is slidably connected to the tank body (11), the lower end of the output end of the electric push rod (71) is fixedly connected to a push-pull rod (72), the outer side of the push-pull rod (72) is slidably sleeved with a baffle plate (73), the baffle plate (73) is slidably connected to the tank body (11), the bottom of the push-pull rod (72) is fixedly connected to a piston plate (74), the piston plate (74) is slidably connected to the tank body (11), the inside of the tank body (11) is fixedly connected to a guide rod (75), the guide rod (75) is slidably connected to the baffle plate (73), the outer side of the guide rod (75) is slidably sleeved with a sealing ring (71). 6), the sealing ring 1 (76) is fixedly connected to the piston plate (74), the interior of the tank body (11) is rotatably connected to a screw rod (77) via a bearing, the screw rod (77) is connected to the baffle plate (73) via a thread, the outer side of the screw rod (77) is movably sleeved with a sealing ring 2 (78), the sealing ring 2 (78) is fixedly connected to the piston plate (74), the outer side of the screw rod (77) is fixedly sleeved with a first bevel gear (79), the outer side of the first bevel gear (79) is meshed with a second bevel gear (791), the right end of the second bevel gear (791) is fixedly connected to a rotating shaft (792), the rotating shaft (792) is rotatably connected to the tank body (11) via a bearing, and the right end of the rotating shaft (792) is fixedly connected to a handle (793).

3. A leakproof mechanical liquid quantitative extraction device according to claim 2, characterized in that: The limiting mechanism (8) comprises a slot (81), the interior of the rotating shaft (792) is provided with a slot (81), the interior of the slot (81) is slidably connected with an insertion rod (82), the upper end of the insertion rod (82) is fixedly connected with a pull rod (83), the outer side of the rotating shaft (792) is rotatably sleeved with a fixed seat (84), the fixed seat (84) is fixedly connected to the tank body (11), the insertion rod (82) and the pull rod (83) are both slidably connected to the fixed seat (84), the outer side of the pull rod (83) is fixedly connected with a slider (85), the slider (85) is slidably connected to the fixed seat (84), the interior of the slider (85) is slidably sleeved with a fixing rod (86), the fixing rod (86) is fixedly connected to the fixing seat (84), and the outer side of the fixing rod (86) is provided with a first spring (87).

4. A leakproof mechanical liquid quantitative extraction device according to claim 3, characterized in that: The number of the slots (81) is multiple, and the multiple slots (81) are annular and continuously and evenly distributed inside the rotating shaft (792).

5. The leakproof mechanical liquid quantitative extraction device according to claim 3, characterized in that: One end of the first spring (87) is fixedly connected to the slider (85), and the other end of the first spring (87) is fixedly connected to the fixing seat (84).

6. The leakproof mechanical liquid quantitative extraction device according to claim 1, characterized in that: The rotating mechanism (9) comprises a square rod (91), the square rod (91) is slidably sleeved inside the connecting sleeve (6), a rotating seat (92) is fixedly connected to the lower end of the square rod (91), the rotating seat (92) is rotatably connected to the bottom plate (1), the outer side of the rotating seat (92) is rotatably sleeved to a limit seat (93) via a bearing, the limit seat (93) is fixedly connected to the bottom plate (1), a groove (991) is provided inside the limit seat (93), a ball (95) is movably sleeved inside the groove (991), and a rubber block is fixedly connected inside the groove (991). (94), the rubber block (94) contacts the ball (95), the ball (95) is rotatably connected to the rotating seat (92), the outer side of the ball (95) is movably sleeved with a sliding seat (96), the sliding seat (96) is slidably connected to the rotating seat (92), the inner side of the sliding seat (96) is slidably sleeved with a connecting rod (97), the connecting rod (97) is fixedly connected to the rotating seat (92), a second spring (98) is arranged on the outer side of the connecting rod (97), and a guide wheel (99) is arranged at the bottom of the sliding seat (96), and the guide wheel (99) is slidably connected to the rotating seat (92).

7. A leakproof mechanical liquid quantitative extraction device according to claim 6, characterized in that: There are a plurality of grooves (991), and the plurality of grooves (991) are evenly distributed inside the limiting seat (93).

8. The leakproof mechanical liquid quantitative extraction device according to claim 6, characterized in that: One end of the second spring (98) is fixedly connected to the rotating seat (92), and the other end of the second spring (98) is fixedly connected to the sliding seat (96).

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