Automatic water injection device of water bath kettle

Abstract

The utility model relates to the technical field of experimental instruments and equipment, and discloses an automatic water injection device for a water bath kettle, which comprises water bath kettle equipment and a mounting piece, the mounting piece is arranged on the water bath kettle equipment, and a water injection piece for automatically injecting water into the water bath kettle equipment is arranged on the mounting piece; the utility model effectively solves the problems that the water injection device on the conventional water bath kettle is designed into an integrated structure with a heating kettle, so that the universality of the automatic water injection water bath kettle is limited, the water bath kettles of different brands and models cannot be directly installed and used for the automatic water injection device, and the replacement cost and inconvenience of a user are increased; and the water injection device mostly adopts a mode that a buoy blocks a water injection port along with the rising of the water level to control the water inlet, so that the risk of excessive water addition exists, namely when the buoy is temporarily unbalanced due to the fluctuation of the water level or the external force, unnecessary additional water addition is possibly caused, and the stability and the heating efficiency of the water bath kettle can be influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to experimental instrument and equipment technical field especially relates to a water bath pot automatic water injection device. BACKGROUND

[0002] In the laboratory environment, water bath as a kind of commonly used heating equipment, is widely used in various chemical reactions, sample dissolution, biological sample heat preservation etc. Experimental process. The conventional water bath needs to be manually added moisture by operating personnel periodically to ensure that the water level in the pot is maintained in the safe and effective range during use. However, this manual operation mode is not only cumbersome, but also can cause the water in the pot to dry up due to negligence or forgetfulness, which may cause serious consequences such as electrical short circuit, equipment damage and even fire, seriously threatening the safety of the laboratory and the smooth progress of the experiment.

[0003] To solve this problem, automatic water injection water bath gradually appears in the market, which usually designs automatic water injection device and heating pot as integrated structure, which can automatically supplement water source when water level drops, effectively avoiding the safety hazards caused by water shortage. However, this integrated design also brings new problems: on the one hand, it limits the versatility of automatic water injection water bath, so that water baths of different brands and models cannot be directly installed with such automatic water injection devices, increasing the replacement cost and inconvenience of users; On the other hand, the existing automatic water injection device mostly uses the way that the float blocks the water inlet as the water level rises to control water inflow. Although this method is simple, it has the risk of excessive water addition, that is, when the float is temporarily unbalanced due to water level fluctuation or external force, it may cause unnecessary additional water, affecting the stability and heating efficiency of the water bath. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the water injection device on the existing water bath mentioned in the above background technology is designed as an integrated structure with the heating pot, which limits the versatility of automatic water injection water bath, so that water baths of different brands and models cannot be directly installed with such automatic water injection devices, increasing the replacement cost and inconvenience of users, and the water injection device mostly uses the way that the float blocks the water inlet as the water level rises to control water inflow, which has the risk of excessive water addition, that is, when the float is temporarily unbalanced due to water level fluctuation or external force, it may cause unnecessary additional water, which may affect the stability and heating efficiency of the water bath.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] The utility model provides an automatic water injection device of water bath kettle, including water bath kettle equipment and mounting piece, the mounting piece is equipped on water bath kettle equipment, and the mounting piece is equipped with the water injection spare of automatic water injection in water bath kettle equipment, the water injection spare includes the float ball and the liquid level switch spare of accurate control to water level height.

[0007] Preferably, the mounting piece includes a clamping device, the water injection device is clamped at the edge of the water bath kettle through the clamping device, and the clamping device can be a clamp during use. The automatic water injection device can be adapted to water bath kettles of different brands and different sizes through the clamping device, greatly improving the universality and compatibility of the device.

[0008] Preferably, the clamping device is provided with a connecting rod, the connecting rod is provided with a mounting end, the water injection device is arranged on the mounting end, and a horizontal block is arranged below the connecting rod. The fit of the horizontal block and the edge of the water bath kettle equipment ensures the vertical installation of the connecting rod, which is conducive to the accurate sensing of the water level by the float ball, improves the accuracy of liquid level detection, and makes the entire water injection process more stable and reliable.

[0009] Preferably, the water injection device includes a control box, the control box is provided with a water pump above, a PLC controller and a circuit breaker are arranged in the control box, the liquid level switch is arranged below the control box, the liquid level switch is connected with the PLC controller, the PLC controller is connected with the circuit breaker, the circuit breaker is connected with an external power supply line, the circuit breaker is connected with the water pump, and the liquid level switch, the PLC controller and the circuit breaker are connected through signal lines.

[0010] Preferably, the liquid level switch includes a connecting rod, the float ball is movably sleeved on the connecting rod, high and low switches are arranged on the connecting rod, and the float ball is arranged between the high and low switches. The float ball can move up and down with the rise and fall of the water level, and when the float ball reaches the set high or low switch position, the corresponding switch action is triggered to transmit the water level signal to the PLC controller.

[0011] Preferably, the high and low switches can be reed switches during use, and the float ball is provided with a magnet for cooperating with the reed switches. The reed switch has the advantages of no contact, long service life and fast response speed, can quickly sense the magnetic field change when the float ball approaches and trigger the switch action, and the cooperation of the magnet and the reed switch makes the liquid level detection more accurate, effectively avoids false triggering caused by liquid level fluctuation, improves the control accuracy of the automatic water injection device, and provides a more stable water bath environment for experiments. When the reed switch is used, the reed switch needs to be connected through a signal converter when connected with the PLC controller.

[0012] Preferably, the connecting rod is provided with a movable cavity, the connecting rod is provided with a moving hole communicated with the movable cavity, the low-level switch and the high-level switch are arranged in the movable cavity, the connecting rod is provided with two positioning members, the two positioning members pass through the moving hole and are connected with the low-level switch and the high-level switch respectively, and the movable cavity, the moving hole and the positioning members provided on the connecting rod facilitate the installation and adjustment of the high-level switch and the low-level switch.

[0013] Preferably, the movable cavity is provided with a partition plate, the partition plate divides the movable cavity into two moving chambers, the moving hole is provided with two moving holes, the two moving holes are symmetrically arranged on the connecting rod respectively, the two moving holes are communicated with the two moving chambers respectively, the low-level switch and the high-level switch are arranged in the two moving chambers respectively, and the two moving chambers are used for mounting the low-level switch and the high-level switch respectively, so that the mutual interference between the low-level switch and the high-level switch is avoided.

[0014] Preferably, the positioning member comprises a connecting block and a clamping plate, the connecting block is symmetrically provided with connecting ends, the clamping plate is provided with two clamping plates which are symmetrically arranged on two sides of the connecting block and are connected with the two connecting ends, the clamping plate is rotationally connected with the connecting end through a cylindrical pin, a torsional spring is sleeved on the cylindrical pin, the two ends of the torsional spring are connected with the connecting end and the clamping plate respectively, the inner side of the clamping plate is provided with a clamping end, the outer side of the connecting rod is symmetrically provided with a plurality of clamping grooves matched with the clamping end, the position adjustment of the high-level switch and the low-level switch is more convenient and faster through the positioning member, the clamping plate can be automatically reset in the clamping groove after the pressing plate is loosened, the position of the switch is fixed, and the pressing plate is arranged on the clamping plate, so that the user can drive the clamping plate to rotate by pressing the pressing plate.

[0015] Preferably, the high-level switch and the low-level switch are connected with positioning blocks, the positioning blocks are provided with extension ends, the extension ends pass through corresponding moving holes and are connected with corresponding connecting blocks, and the positioning blocks are connected with the extension ends on the positioning blocks through bolts, so that the corresponding low-level switch or high-level switch can be positioned when the positioning member is clamped on the connecting rod.

[0016] Compared with the prior art, the utility model has the advantages of the following beneficial effects:

[0017] The clamping equipment is arranged, the water injection equipment of the utility model can be flexibly installed at the edge of water bath pots of different brands and different sizes, the water bath pot itself does not need to be complicatedly modified or customized, and the application range of the device is greatly expanded.

[0018] And through the water injection part, the water bath kettle can be automatically injected, and the water level in the water bath kettle can be accurately controlled, and the positioning part is arranged, the high-level switch and the low-level switch in the water injection part can be quickly adjusted in position, the flexible setting of the water level control range is realized, the adaptability and practicality of the device in complex experimental scenes are improved, and the flexibility and efficiency of experimental operation are further improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0021] Figure 2 It is a connecting view of the mounting part and the water injection part of the present application.

[0022] Figure 3 It is a mounting part structure view of the present application.

[0023] Figure 4 It is an exploded view of the water injection part structure of the present application.

[0024] Figure 5 It is a positioning part structure view of the present application.

[0025] Figure 6 It is an exploded view of the positioning part structure of the present application.

[0026] Figure 7 It is a connecting rod structure view of the present application.

[0027] Figure number explanation: 1, water bath kettle equipment; 2, mounting part; 21, clamping equipment; 22, connecting rod body; 23, mounting end; 24, horizontal block; 3, water injection part; 31, water pump; 32, control box; 33, connecting rod; 331, partition plate; 332, moving hole; 333, clamping groove; 34, high-level switch; 35, low-level switch; 351, positioning block; 36, floating ball; 37, positioning part; 371, connecting block; 372, connecting end; 373, clamping plate; 3731, pressing plate; 374, clamping end; 375, cylindrical pin; 376, torsional spring. DETAILED DESCRIPTION

[0028] The present application will be described in further detail below with reference to the drawings.

[0029] The following description is used to disclose the present application so that those skilled in the art can implement the present application. The preferred embodiments in the following description are only examples, and other obvious modifications can be conceived by those skilled in the art. The basic principles defined in the following description can be used in other embodiments, modifications, improvements, equivalents and other technical solutions without departing from the spirit and scope of the present application.

[0030] Those skilled in the art should understand that in the disclosure of the present application, the orientations or positions indicated by the terms "longitudinal", "transverse", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or position relationships shown in the drawings, which are only for the convenience of the simplified description of the present application, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the above terms cannot be understood as a limitation of the present application.

[0031] It can be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as a limitation on the number. Embodiments

[0032] Please refer to Figures 1-7 An automatic water injection device for a water bath kettle, comprising a water bath kettle device 1 and a mounting member 2, the mounting member 2 is arranged on the water bath kettle device 1, and the mounting member 2 is provided with a water injection member 3 for automatically injecting water into the water bath kettle device 1, the water injection member 3 comprises a float ball 36 and a liquid level switch member for accurately controlling the water level.

[0033] The mounting member 2 comprises a clamping device 21, the water injection member 3 is clamped at the edge of the water bath kettle device 1 by the clamping device 21, the clamping device 21 can be a clamp during use, so that the automatic water injection device can be adapted to water bath kettles of different brands and different sizes, greatly improving the versatility and compatibility of the device.

[0034] The clamping device 21 is provided with a connecting rod body 22, the connecting rod body 22 is provided with a mounting end 23, the water injection member 3 is arranged on the mounting end 23, and a horizontal block 24 is arranged below the connecting rod body 22, the fit of the horizontal block 24 and the edge of the water bath kettle device 1 ensures the vertical installation of the connecting rod 33, which is conducive to the accurate sensing of the water level by the float ball 36, improves the accuracy of liquid level detection, and makes the entire water injection process more stable and reliable. The clamping device can be a clamp during use, which can be directly clamped on the edge of the water bath device 1.

[0035] The water injection device 3 comprises a control box 32, a water pump 31 is arranged above the control box 32, a PLC controller and a circuit breaker are arranged in the control box 32, a liquid level switch is arranged below the control box 32, the liquid level switch is connected with the PLC controller, the PLC controller is connected with the circuit breaker, the circuit breaker is connected with an external power supply line, the circuit breaker is connected with the water pump 31, the liquid level switch, the PLC controller and the circuit breaker are connected through signal lines, and the circuit breaker and the water pump 31 are connected through a power supply line.

[0036] The liquid level switch comprises a connecting rod 33, a floating ball 36 is movably arranged on the connecting rod 33, a high-level switch 34 and a low-level switch 35 are arranged on the connecting rod 33, and the floating ball 36 is arranged between the high-level switch 34 and the low-level switch 35. The floating ball 36 can move up and down with the change of the water level, and when the floating ball 36 reaches the position of the set high-level switch 34 or low-level switch 35, the corresponding switch is triggered to transmit the water level signal to the PLC controller.

[0037] The high-level switch 34 and the low-level switch 35 can be dry reed switches when in use, and a magnet is arranged in the floating ball 36 and cooperates with the dry reed switch. The dry reed switch has the advantages of no contact, long service life, fast response speed and the like, can rapidly sense the change of the magnetic field when the floating ball 36 approaches to trigger the switch action, meanwhile, the cooperation of the magnet and the dry reed switch makes the liquid level detection more accurate, can effectively avoid the false triggering caused by the fluctuation of the liquid level, improves the control accuracy of the automatic water injection device, and provides a more stable water bath environment for the experiment. When the dry reed switch is used, the dry reed switch needs to be connected through a signal converter when connected with the PLC controller.

[0038] The connecting rod 33 is provided with a movable cavity, the connecting rod 33 is provided with a moving hole 332 in communication with the movable cavity, the low-level switch 35 and the high-level switch 34 are arranged in the movable cavity, two positioning pieces 37 are arranged on the connecting rod 33, the two positioning pieces 37 pass through the moving hole 332 and are connected with the low-level switch 35 and the high-level switch 34 respectively, and the movable cavity, the moving hole 332 and the positioning pieces 37 arranged on the connecting rod 33 provide convenience for the installation and adjustment of the high-level switch 34 and the low-level switch 35.

[0039] A partition plate 331 is arranged in the movable cavity, the partition plate 331 divides the movable cavity into two movable chambers, the moving hole 332 is provided with two moving holes 332, the two moving holes 332 are symmetrically arranged on the connecting rod 33, the two moving holes 332 are respectively in communication with the two movable chambers, the low-level switch 35 and the high-level switch 34 are respectively arranged in the two movable chambers, and the two movable chambers are respectively used for mounting the low-level switch 35 and the high-level switch 34 to avoid the mutual interference therebetween.

[0040] The positioning piece 37 comprises a connecting block 371 and clamping plates 373, the connecting block 371 is symmetrically provided with connecting ends 372, the clamping plates 373 are provided in two, the two clamping plates 373 are symmetrically arranged on the two sides of the connecting block 371 and connected with the two connecting ends 372, the clamping plates 373 are rotationally connected with the connecting ends 372 through cylindrical pins 375, the cylindrical pins 375 are sleeved with torsional springs 376, the torsional springs 376 are connected with the connecting ends 372 and the clamping plates 373 at two ends respectively, the inner sides of the clamping plates 373 are provided with clamping ends 374, the outer side of the connecting rod 33 is symmetrically provided with a plurality of clamping grooves 333 matched with the clamping ends 374, the position adjustment of the high-level switch 34 and the low-level switch 35 is more convenient and fast through the positioning piece 37, the setting of the torsional spring 376 enables the clamping plate 373 to automatically reset after the pressing plate 3731 is loosened, and the clamping plate 373 is clamped into the clamping groove 333 again, thereby fixing the position of the switch, wherein the clamping plate 373 is provided with the pressing plate 3731, so that the user can drive the clamping plate 373 to rotate by pressing the pressing plate 3731.

[0041] The high-level switch 34 and the low-level switch 35 are connected with positioning blocks 351, the positioning blocks 351 are provided with protruding extension ends, the extension ends pass through corresponding moving holes 332 and are connected with corresponding connecting blocks 371, the positioning blocks 351 can be connected with the extension ends on the positioning blocks 351 through bolts, so that the positioning piece 37 can position the corresponding low-level switch 35 or high-level switch 34 when the positioning piece 37 is clamped on the connecting rod 33.

[0042] In use, the clamping device 21 is clamped at the edge of the water bath kettle device 1, when clamping, the lower end surface of the horizontal block 24 is attached to the edge of the water bath kettle device 1, the horizontal block 24 is in a horizontal state, ensuring that the connecting rod 33 is vertically arranged in the water bath kettle device 1, the water pump 31 is connected with a water source, and then an external power supply line is connected with an external power source, when the water level in the water bath kettle device 1 decreases during use, the float ball 36 descends, when the float ball 36 reaches the position of the low-level switch 35, the low-level switch 35 is triggered, a signal is transmitted to a PLC controller, the PLC controller controls the external power source and the water pump 31 to be connected through a relay, the water pump 31 pumps water into the water bath kettle device 1, and the water bath kettle device 1 is automatically watered, when the water level in the water bath kettle device 1 rises, the float ball 36 moves upwards, when the float ball 36 reaches the position of the high-level switch 34, the high-level switch 34 is triggered, a signal is transmitted to the PLC controller, the PLC controller controls the external power source and the water pump 31 to be disconnected through the relay, thereby stopping the water pump 31 from watering the water bath kettle device 1, and the water bath kettle device 1 can be automatically watered and the water level range can be accurately controlled.

[0043] When the positions of the high-level switch 34 and the low-level switch 35 need to be adjusted, pinch the two pressing plates 3731 on the positioning member 37, press the two pressing plates 3731 inward, the two pressing plates 3731 drive the two clamping plates 373 to rotate outward around the cylindrical pin 375 and drive the torsional spring 376 to tighten, the clamping plates 373 rotate away from the connecting rod 33, the clamping plates 373 drive the clamping end 374 to move out of the clamping groove 333, then the positioning member 37 can be moved up and down, the positioning member 37 drives the high-level switch 34 or the low-level switch 35 connected thereto to move, thereby the position adjustment of the high-level switch 34 and the low-level switch 35 can be performed, and the use range of the water injection member 3 is improved.

[0044] It will be understood by those skilled in the art that the embodiments of the present application described above and shown in the drawings are merely exemplary and not limiting of the present application. The objects of the present application have been fully and effectively achieved. The functions and structural principles of the present application have been demonstrated and described in the embodiments, and the embodiments of the present application can have any variations or modifications without departing from the principles.

Claims

1. A water bath pot automatic water injection device, characterized in that, The utility model relates to a water bath kettle equipment (1), Install (2) on water bath kettle equipment (1), install water injection spare (3) on water bath kettle equipment (1) in automatic water injection spare (3) including float ball (36) and the liquid level switch spare of accurate control water level height on the mounting piece (2), the water injection spare (3) is clamped and is arranged at the edge of water bath kettle equipment (1) through the clamping equipment (21).

2. The automatic water injection device for a water bath according to claim 1, characterized in that: The clamping equipment (21) is provided with a connecting rod body (22), the connecting rod body (22) is provided with a mounting end (23), the water injection spare (3) is arranged on the mounting end (23), and a horizontal block (24) is arranged below the connecting rod body (22).

3. The automatic water injection device of a water bath kettle according to claim 2, characterized in that: The water injection spare (3) includes a control box (32), the control box (32) is provided with a water pump (31) above, a PLC controller and a circuit breaker are arranged in the control box (32), the liquid level switch is arranged below the control box (32), the liquid level switch is connected with the PLC controller, the PLC controller is connected with the circuit breaker, the circuit breaker is connected with an external power line, and the circuit breaker is connected with the water pump (31).

4. The automatic water injection device of a water bath kettle according to claim 3, characterized in that: The liquid level switch includes a connecting rod (33), the connecting rod (33) is movably sleeved with a float ball (36), the connecting rod (33) is provided with a high-level switch (34) and a low-level switch (35), and the float ball (36) is arranged between the high-level switch (34) and the low-level switch (35).

5. The automatic water injection device of a water bath kettle according to claim 4, characterized in that: The high-level switch (34) and the low-level switch (35) can be dry reed switches when in use, and the float ball (36) is provided with a magnet for cooperating with the dry reed switch.

6. The automatic water injection device of a water bath kettle according to claim 5, characterized in that: The connecting rod (33) is provided with a movable cavity, the connecting rod (33) is provided with a moving hole (332) in communication with the movable cavity, the low-level switch (35) and the high-level switch (34) are arranged in the movable cavity, the connecting rod (33) is provided with two positioning members (37), and the two positioning members (37) pass through the moving hole (332) and are connected with the low-level switch (35) and the high-level switch (34) respectively.

7. The automatic water injection device of a water bath kettle according to claim 6, characterized in that: The movable cavity is provided with a partition plate (331), the partition plate (331) divides the movable cavity into two moving cavities, the moving hole (332) is provided with two, the two moving holes (332) are symmetrically arranged on the connecting rod (33), the two moving holes (332) are in communication with the two moving cavities respectively, and the low-level switch (35) and the high-level switch (34) are arranged in the two moving cavities respectively.

8. The automatic water injection device of a water bath kettle according to claim 7, characterized in that: ​ 9. The automatic water injection device of a water bath kettle according to claim 8, characterized in that: The positioning member (37) comprises a connecting block (371) and clamping plates (373), symmetrically arranged connecting ends (372) are arranged on the connecting block (371), two clamping plates (373) are arranged, the two clamping plates (373) are symmetrically arranged on both sides of the connecting block (371) and are connected with the two connecting ends (372), the clamping plates (373) are rotatably connected with the connecting ends (372) through cylindrical pins (375), torsional springs (376) are sleeved on the cylindrical pins (375), and two ends of the torsional springs (376) are connected with the connecting ends (372) and the clamping plates (373) respectively, clamping ends (374) are arranged on the inner sides of the clamping plates (373), and a plurality of clamping grooves (333) matched with the clamping ends (374) are symmetrically arranged on the outer side of the connecting rod (33).

10. The automatic water injection device for a water bath according to claim 9, characterized in that: The high-position switch (34) and the low-position switch (35) are connected with positioning blocks (351), the positioning blocks (351) protrude with extension ends, and the extension ends are connected with the corresponding connecting blocks (371) through the corresponding moving holes (332).

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