Floating ball type liquid level measuring device

Abstract

The utility model discloses a floating ball type liquid level measuring device, and relates to the technical field of liquid level measuring devices. The utility model provides a floating ball type liquid level measuring device which comprises an inserting rod, two conducting rods extending in the axial direction of the inserting rod are arranged in the inserting rod, a conducting connecting block is arranged between the two conducting rods, and a first magnetic attraction piece is arranged on the conducting connecting block; a floating ball assembly; the first floating ball and the second floating ball are provided with oppositely-arranged clamping grooves, and the two clamping grooves are buckled to form a limiting groove used for being matched with the inserting rod. The floating ball assembly further comprises connecting units arranged on the two sides of the limiting groove, each connecting unit comprises a connecting shaft, the connecting shafts are sleeved with second magnetic attraction pieces used for being matched with the first magnetic attraction pieces, the first ends of the connecting shafts are hinged to one of the first floating ball and the second floating ball, and the other floating ball is provided with a spring bolt. The second end of the connecting shaft is provided with a locking piece, and the locking piece is provided with a lock hole used for being matched with the spring bolt to form a limiting structure.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of liquid level measuring devices, in particular to a floating ball type liquid level measuring device. BACKGROUND

[0002] In some containers for containing solutions, such as storage tanks, tanks, reaction kettles, etc., it is often necessary to monitor the liquid level of the solution. The floating ball type liquid level measuring device is a liquid level measuring instrument designed based on the Archimedes buoyancy principle. When the liquid level in the container changes, the floating ball will float on the liquid surface according to the principle of displacing the same volume of liquid and move up and down with it.

[0003] In the prior art, when the floating ball needs to be maintained or replaced, the entire measuring device usually needs to be removed, and then the floating ball can be maintained or replaced, which is inconvenient to maintain and replace. CONTENT OF THE UTILITY MODEL

[0004] The main purpose of the present application is to provide a floating ball type liquid level measuring device, which aims to solve the technical problem that in the prior art, the entire measuring device usually needs to be removed, and then the floating ball can be maintained or replaced, which is inconvenient to maintain and replace.

[0005] To achieve the above purpose, the present application provides a floating ball type liquid level measuring device, comprising:

[0006] A plug rod is provided with two conductive rods extending in the axial direction of the plug rod, a conductive connecting block is arranged between the two conductive rods, and a first magnetic attraction member is arranged on the conductive connecting block;

[0007] A floating ball assembly is arranged on the plug rod and can move in the axial direction of the plug rod;

[0008] The floating ball assembly comprises a first floating ball and a second floating ball, the first floating ball and the second floating ball have oppositely arranged clamping grooves, and the two clamping grooves are buckled to form a limiting groove for cooperating with the plug rod;

[0009] The floating ball assembly further comprises a connecting unit arranged on both sides of the limiting groove, the connecting unit comprises a connecting shaft, a second magnetic attraction member for cooperating with the first magnetic attraction member is arranged on the connecting shaft, a first end of the connecting shaft is hingedly connected with one of the first floating ball and the second floating ball, a lock tongue is arranged on the other floating ball, a second end of the connecting shaft is provided with a locking member, and the locking member has a locking hole for cooperating with the lock tongue to form a limiting structure.

[0010] Optionally, the connecting unit further comprises a first positioning slot arranged on the first floating ball and a second positioning slot arranged on the second floating ball, the first positioning slot and the second positioning slot are oppositely arranged, the first positioning slot and the second positioning slot cooperatively form a placing slot, and the second magnetic attraction member is arranged in the placing slot.

[0011] Optionally, the first floating ball is further provided with a fixing slot in communication with the first positioning slot, a rotating shaft is arranged between two opposite inner walls of the fixing slot, and the first end of the connecting shaft has a through hole for cooperating with the rotating shaft.

[0012] Optionally, the second floating ball is further provided with a limiting slot, the limiting slot is in communication with the second positioning slot through a guide slot, the width of the limiting slot is greater than the width of the guide slot, the locking member comprises a guide cylinder and a limiting plate, the guide cylinder is sleeved on the second end of the connecting shaft, the guide cylinder is movable along the axial direction of the connecting shaft, the locking tongue is arranged on the inner wall of the limiting slot located on the side close to the guide slot, and the lock hole is arranged on the limiting plate and is aligned with the locking tongue.

[0013] Optionally, the width of the limiting slot in the first direction is greater than the thickness of the limiting plate in the first direction, so that when the connecting shaft is flipped around the hinged end, the limiting plate can enter the limiting slot.

[0014] Optionally, the guide cylinder and the connecting shaft are in threaded cooperation.

[0015] Optionally, the locking tongue is an annular protruding structure, the corresponding central angle of the annular protruding structure is less than 180°, the annular protruding structure is located on the periphery of the guide slot, and the lock hole is an annular slot structure.

[0016] Optionally, the connecting shaft of one of the two connecting units is hinged to the first floating ball, and the connecting shaft of the other connecting unit is hinged to the second floating ball.

[0017] Optionally, the outer wall of the second magnetic attraction member is provided with an arc-shaped slot, the clamping slots of the first floating ball and the second floating ball and the arc-shaped slots of the two connecting units cooperatively form a limiting space for cooperating with the insertion rod.

[0018] Optionally, the two ends of the insertion rod are provided with connecting flanges.

[0019] The application can achieve the following beneficial effects:

[0020] The ball float type liquid level measuring device provided by the embodiment of the application is characterized in that the ball float assembly is composed of a first ball float and a second ball float, the first ball float and the second ball float are connected through a connecting unit, when the ball float assembly needs to be installed on the insertion rod, the first ball float and the second ball float can be moved from both sides of the insertion rod to the direction of approaching the insertion rod, the clamping grooves on the first ball float and the second ball float are buckled to form a limiting groove for cooperating with the insertion rod, and the first ball float and the second ball float are connected through the connecting unit arranged on both sides of the limiting groove after the two clamping grooves are buckled; similarly, when the ball float unit needs to be removed from the insertion rod, the above operation is reversed, the insertion rod does not need to be disassembled, and the ball float assembly can be removed or installed from any height position of the insertion rod, compared with the prior art that the ball float is a one-piece structure and needs to be penetrated from the end of the insertion rod, when both ends of the insertion rod abut against the inner wall of the container, the insertion rod needs to be disassembled first, and then the ball float can be installed on the insertion rod from the end of the insertion rod, and the application can improve the disassembly and installation efficiency of the ball float. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 FIG. 1 is a cross-sectional structure schematic diagram of the liquid level measuring device of the embodiment of the application;

[0022] Figure 2 FIG. 2 is a top view structure schematic diagram of the ball float assembly of the embodiment of the application;

[0023] Figure 3 FIG. 3 is an enlarged structure schematic diagram of position A in FIG. 2; Figure 2

[0024] FIG. 4 is a structure schematic diagram of the ball float assembly of the embodiment of the application without the connecting unit. Figure 4 Figure 2 FIG. 5 is a structure schematic diagram of the ball float assembly of the embodiment of the application without the connecting unit.

[0025] The reference signs in the drawings are as follows:

[0026] 10-insertion rod, 11-connecting flange, 12-conductive rod, 13-conductive connecting block, 14-first magnetic attraction piece, 20-ball float assembly, 21-first ball float, 22-second ball float, 30-clamping groove, 40-placing groove, 41-first positioning groove, 411-fixing groove, 412-rotation shaft, 42-second positioning groove, 421-guiding groove, 422-limiting groove, 50-locking tongue, 60-connecting unit, 61-second magnetic attraction piece, 611-arc-shaped groove, 62-connecting shaft, 70-locking piece, 71-guiding cylinder, 72-limiting plate.

[0027] The implementation, functional features and advantages of the application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0028] ​With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] It should be noted that all the directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0030] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0031] In addition, if the present application embodiments involve "first", "second", etc. description, the "first", "second", etc. description is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features with "first", "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. For example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously meet the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of those skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection required by the present application.

[0032] Embodiment 1

[0033] Reference Figures 1-4The first embodiment of the present application provides a floating ball type liquid level measuring device, comprising: a plug rod 10, two conductive rods 12 extending along the axial direction of the plug rod 10 are arranged in the plug rod 10, a conductive connecting block 13 is arranged between the two conductive rods 12, and a first magnetic attraction piece 14 is arranged on the conductive connecting block 13; a floating ball assembly 20 is sleeved on the plug rod 10 and can move along the axial direction of the plug rod 10; wherein the floating ball assembly 20 comprises a first floating ball 21 and a second floating ball 22, the first floating ball 21 and the second floating ball 22 are provided with oppositely arranged clamping grooves 30, and the two clamping grooves 30 are buckled to form a limiting groove 422 for cooperating with the plug rod 10; the floating ball assembly 20 further comprises a connecting unit 60 arranged on both sides of the limiting groove 422, the connecting unit 60 comprises a connecting shaft 62, a second magnetic attraction piece 61 for cooperating with the first magnetic attraction piece 14 is sleeved on the connecting shaft 62, one of the first floating ball 21 and the second floating ball 22 is hinged to a first end of the connecting shaft 62, a lock tongue 50 is arranged on the other floating ball, and a locking piece 70 is arranged on a second end of the connecting shaft 62, the locking piece 70 has a locking hole for cooperating with the lock tongue 50 to form a limiting structure.

[0034] In the embodiment, the inside of the plug rod 10 is a hollow structure, in the use process, the inside of the plug rod 10 is kept in a sealed state to avoid the solution entering the inside of the plug rod 10. The conductive rods 12 can be made of metal material, the upper ends of the two conductive rods 12 are connected to a current detection circuit, one of the conductive rods 12 can be made of copper, and the other conductive rod 12 is made of another material to improve greater current resistance. The principle of measuring the liquid level height is that, as the liquid level changes, the floating ball assembly 20 follows the lifting movement of the liquid surface, the second magnetic attraction piece 61 is arranged on the floating ball assembly 20, the conductive connecting block 13 is arranged in the plug rod 10, the conductive connecting block 13 connects the two conductive rods 12, the first magnetic attraction piece 14 is arranged on the conductive connecting block 13; the second magnetic attraction piece 61 lifts and moves synchronously to drive the first magnetic attraction piece 14 to move synchronously, the first magnetic attraction piece 14 and the second magnetic attraction piece 61 are located at the same height, and then the conductive connecting block 13 follows the lifting movement of the liquid surface height, so that the length of the conductive rod 12 connected to the circuit changes, the resistance also changes synchronously, the detected current in the current detection circuit also changes correspondingly, and the liquid level height can be calculated according to the current value.

[0035] A mounting hole is arranged through the conductive connecting block 13, the mounting hole is used for cooperating with the conductive rod 12, and the conductive rod 12 can also limit and guide the conductive connecting block 13. The inside of the first floating ball 21 and the second floating ball 22 is a hollow structure to provide sufficient buoyancy. The two clamping grooves 30 of the first floating ball 21 and the second floating ball 22 are oppositely arranged along a first direction, and the two connecting units 60 are arranged on both sides of the limiting groove 422 along a second direction. Figure 2As shown, the lower end of the connecting shaft 62 of the connecting unit 60 on the left side is the first end, and the upper end of the connecting shaft 62 of the connecting unit 60 on the right side is the first end. The first end of the connecting shaft 62 is hinged with the first floating ball 21 and the second floating ball 22, and only the second end of the connecting shaft 62 needs to be connected and fixed during the connection of the first floating ball 21 and the second floating ball 22, thereby improving the disassembly and installation efficiency. During the installation of the first floating ball 21 and the second floating ball 22, the first floating ball 21 and the second floating ball 22 move in opposite directions from the two sides of the insertion rod 10, and the second end of the connecting shaft 62 is connected with the first floating ball 21 and the floating ball through the lock hole and the lock tongue 50.

[0036] Embodiment 2

[0037] As an optional embodiment, the embodiment provides a specific structure of the second magnetic attraction piece 61, which comprises: the connecting unit 60 further comprises a first positioning groove 41 arranged on the first floating ball 21 and a second positioning groove 42 arranged on the second floating ball 22, the first positioning groove 41 and the second positioning groove 42 are oppositely arranged, the first positioning groove 41 and the second positioning groove 42 cooperate to form a placing groove 40, and the second magnetic attraction piece 61 is arranged in the placing groove 40.

[0038] Specifically, as shown in the drawings, Figure 2 The first positioning groove 41 and the second positioning groove 42 are arranged on the left and right sides of the clamping groove 30. By arranging the placing groove 40, the second magnetic attraction piece 61 can be conveniently accommodated, and the second magnetic attraction piece 61 is arranged on the connecting shaft 62. The connecting shaft 62 can support the second magnetic attraction piece 61, and the first floating ball 21 and the second floating ball 22 can be connected through the connecting shaft 62.

[0039] Optionally, the first floating ball 21 is further provided with a fixed groove 411 in communication with the first positioning groove 41, and a rotating shaft 412 is arranged between the two inner walls opposite to the fixed groove 411. The first end of the connecting shaft 62 has a through hole for cooperating with the rotating shaft 412.

[0040] Specifically, the first end of the connecting shaft 62 has a through hole for cooperating with the rotating shaft 412, and the connecting shaft 62 can be flipped around the axis of the rotating shaft 412.

[0041] Embodiment 3

[0042] As an optional implementation, the embodiment provides a specific structure of the cooperation between the locking tongue 50 and the locking member 70, comprising: the second floating ball 22 is further provided with a limiting groove 422, the limiting groove 422 is communicated with the second positioning groove 42 through the guide groove 421, the width of the limiting groove 422 is greater than the width of the guide groove 421, the locking member 70 comprises a guide cylinder 71 and a limiting plate 72, the guide cylinder 71 is sleeved on the second end of the connecting shaft 62, the guide cylinder 71 can move along the axial direction of the connecting shaft 62, the locking tongue 50 is arranged on the inner wall of the limiting groove 422 located on the side close to the guide groove 421, and the lock hole is arranged on the limiting plate 72 and is aligned with the locking tongue 50.

[0043] Specifically, the width of the limiting groove 422 is greater than the width of the guide groove 421, the guide groove 421 is a U-shaped groove, so that when the limiting plate 72 is in the limiting groove 422, the limiting plate 72 can form a limiting structure with the inner wall of the limiting groove 422. The locking member 70 comprises the guide cylinder 71 and the limiting plate 72, the guide cylinder 71 is located in the guide groove 421, and the guide groove 421 can support and position the guide cylinder 71, so that when the limiting plate 72 enters the limiting groove 422, the lock hole on the limiting plate 72 can be aligned with the locking tongue 50 on the inner wall of the limiting groove 422. When the limiting plate 72 enters the limiting groove 422, there is a certain distance between the lock hole on the limiting plate 72 and the locking tongue 50 at this time, at this time, the guide cylinder 71 is adjusted to move along the direction close to the second magnetic member 61, the limiting plate 72 and the locking tongue 50 are close to each other, and when the locking tongue 50 enters the lock hole, the limiting effect of the limiting plate 72 in the vertical direction is realized. Since the limiting plate 72 plays a tensioning role under the action of the guide cylinder 71 at this time, that is, the limiting plate 72 will not move away from the second magnetic member 61. That is, through the cooperation of the locking tongue 50 and the lock hole, the relative movement of the first floating ball 21 and the second floating ball 22 in the vertical direction is realized, and through the cooperation of the limiting plate 72 and the connecting shaft 62, the movement of the first floating ball 21 and the second floating ball 22 away from each other is limited.

[0044] Optionally, the width of the limiting groove 422 in the first direction is greater than the thickness of the limiting plate 72 in the first direction, so that when the connecting shaft 62 is turned around the hinged end, the limiting plate 72 can enter the limiting groove 422.

[0045] Specifically, as shown in Figure 2 and 3 , the first direction is the vertical direction, and by setting the width of the limiting groove 422 in the first direction to be greater than the thickness of the limiting plate 72, it is ensured that when the limiting plate 72 is turned around the axis of the rotating shaft 412 and enters the limiting groove 422, the limiting plate 72 will not interfere with the locking tongue 50, and it is ensured that the limiting plate 72 can smoothly enter the limiting groove 422.

[0046] Optionally, the guide cylinder 71 and the connecting shaft 62 are in threaded cooperation.

[0047] Optionally, the lock tongue 50 is a ring-shaped protruding structure, a central angle corresponding to the ring-shaped protruding structure is less than 180°, the ring-shaped protruding structure is located at the periphery of the guide groove 421, and the lock hole is a ring-shaped groove structure.

[0048] Specifically, by threadedly connecting the guide cylinder 71 and the connecting shaft 62, the integrity of the limiting plate 72 and the connecting shaft 62 is facilitated, the relative position of the limiting plate 72 in the limiting groove 422 is facilitated to be adjusted, and the limiting plate 72 is maintained in an arbitrary state. The lock tongue 50 is a ring-shaped protruding structure, and the lock tongue 50 is a semi-ring, so that when the guide cylinder 71 is placed in the guide groove 421, the lock tongue 50 does not interfere with the guide cylinder 71 entering the guide groove 421. The lock hole of the limiting plate 72 is a ring-shaped groove structure, so that during the rotation of the limiting plate 72 following the guide cylinder 71, the lock tongue 50 can rotate relatively in the lock hole, and the limiting plate 72 can move in the direction of approaching the lock tongue 50, so that the lock tongue 50 and the lock hole can cooperate to form a limiting structure.

[0049] Optionally, the connecting shaft 62 of one of the two connecting units 60 is hingedly connected with the first floating ball 21, and the connecting shaft 62 of the other connecting unit 60 is hingedly connected with the second floating ball 22.

[0050] Specifically, by distributing the hinged ends of the two connecting shafts 62 on the two floating balls respectively, the stability of the first floating ball 21 and the second floating ball 22 when connected is improved.

[0051] Optionally, the outer wall of the second magnetic attraction member 61 is provided with an arc-shaped groove 611, and the clamping groove 30 of the first floating ball 21 and the second floating ball 22 and the arc-shaped groove 611 of the two connecting units 60 enclose a limiting space for cooperating with the plug rod 10.

[0052] Specifically, by providing the arc-shaped groove 611 on the outer wall of the second magnetic attraction member 61, the arc-shaped grooves 611 of the two second magnetic attraction members 61 cooperate with the clamping grooves 30 of the two floating balls to enclose a circular limiting space for cooperating with the outer wall of the plug rod 10. The floating ball assembly 20 can be as close as possible to the outer wall of the plug rod 10, so that the first magnetic attraction member 14 and the second magnetic attraction member 61 can maintain stable force.

[0053] Optionally, the plug rod 10 is provided with a connecting flange 11 at both ends.

[0054] Specifically, the plug rod 10, the first floating ball 21 and the second floating ball 22 can be made of plastic or other materials. By providing the connecting flange 11 at both ends of the plug rod 10, the plug rod 10 can be installed in the container.

[0055] The above merely preferred embodiments of the present application and are not intended to limit the patent scope of the present application, any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A float type liquid level measuring device, characterized by, include: The insertion rod has two conductive rods extending along its axial direction, and a conductive connecting block is provided between the two conductive rods. A first magnetic attraction element is provided on the conductive connecting block. A float assembly, which is sleeved on the insert rod and can move along the axial direction of the insert rod; The float assembly includes a first float and a second float, the first float and the second float having oppositely arranged slots, the two slots engaging to form a limiting groove for cooperating with the insert rod; The float assembly further includes connecting units disposed on both sides of the limiting groove. The connecting unit includes a connecting shaft, on which a second magnetic member is sleeved for cooperating with the first magnetic member. The first end of the connecting shaft is hinged to one of the first float and the second float, and the other float is provided with a locking tongue. The second end of the connecting shaft is provided with a locking member, which has a locking hole for cooperating with the locking tongue to form a limiting structure.

2. The float-type liquid level measuring device according to claim 1, characterized in that The connecting unit further includes a first positioning groove disposed on the first float and a second positioning groove disposed on the second float. The first positioning groove and the second positioning groove are disposed opposite to each other and cooperate to form a placement groove. The second magnetic suction member is disposed in the placement groove.

3. A float type liquid level measuring device according to claim 2, wherein The first float is also provided with a fixing groove that communicates with the first positioning groove. A rotating shaft is provided between the two inner walls opposite to the fixing groove. The first end of the connecting shaft has a through hole for cooperating with the rotating shaft.

4. The float type liquid level measuring device according to claim 2, wherein The second float is also provided with a limiting groove, which is connected to the second positioning groove through a guide groove. The width of the limiting groove is greater than the width of the guide groove. The locking member includes a guide cylinder and a limiting plate. The guide cylinder is sleeved on the second end of the connecting shaft and can move along the axial direction of the connecting shaft. The locking tongue is provided on the inner wall of the limiting groove near the guide groove. The locking hole is provided on the limiting plate and aligned with the locking tongue.

5. The float-type liquid level measuring device according to claim 4, characterized in that The width of the limiting groove along the first direction is greater than the thickness of the limiting plate along the first direction, so that when the connecting shaft is rotated around its hinge end, the limiting plate can enter the limiting groove.

6. The float-type liquid level measuring device according to claim 4, wherein The guide cylinder and the connecting shaft are threaded together.

7. A float type liquid level measuring device according to claim 6, wherein The latch is an annular protrusion structure with a central angle of less than 180°. The annular protrusion structure is located on the periphery of the guide groove, and the lock hole is an annular groove structure.

8. The float type liquid level measuring device as claimed in claim 1, wherein, The connecting shaft of one of the two connecting units is hinged to the first float, and the connecting shaft of the other connecting unit is hinged to the second float.

9. The float type liquid level measuring device as claimed in claim 1, wherein, The outer wall of the second magnetic component is provided with an arc-shaped groove, and the slots of the first float and the second float and the arc-shaped grooves of the two connecting units surround each other to form a limiting space for cooperating with the plug rod.

10. The float type liquid level measuring device as claimed in claim 1, wherein, The two ends of the insertion rod are provided with connecting flanges.

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