Leakage-proof liquid level meter

By designing a leak-proof level gauge and utilizing a connection method involving a movable joint and a control valve stem, the problem of liquid leakage caused by easy damage to the glass measuring tube was solved, enabling quick disassembly and sealing and simplifying the replacement process.

CN223909047UActive Publication Date: 2026-02-13ZHENGZHOU YUMING MASCH EQUIP CO LTD
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Patent Information

Application Number
CN202520276921.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-20
Publication Date
2026-02-13
Estimated Expiration
2035-02-20

AI Technical Summary

Technical Problem

Existing level gauges typically use glass measuring tubes, which are easily damaged, leading to leakage of the solution inside the container. Furthermore, replacement is inconvenient and wasteful.

Method used

A leak-proof level gauge was designed, which uses an upper connector and a lower connector to connect to the upper and lower connecting pipes respectively through a movable joint and a control valve stem. The sealing is achieved by using a sealing ring and a snap ring groove, which facilitates the disassembly and replacement of the measuring tube assembly.

Benefits of technology

It enables quick disassembly and sealing of the measuring tube assembly, preventing liquid leakage, simplifying the replacement process, and reducing maintenance costs.

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Abstract

The utility model relates to the technical field of liquid level meters, in particular to a leakage-proof liquid level meter which comprises a measuring pipe assembly, an upper connector and a lower connector are communicated with the two ends of the measuring pipe assembly respectively, and the upper connector and the lower connector are communicated with an upper communicating pipe and a lower communicating pipe respectively. The upper communicating pipe and the lower communicating pipe are connected with an upper connecting flange and a lower connecting flange, the upper connector and the lower connector are in threaded connection with an upper movable connector and a lower movable connector respectively, and the two ends of the measuring pipe assembly are inserted into the upper movable connector and the lower movable connector. The upper connector and the lower connector are in threaded connection with an upper control valve rod and a lower control valve rod respectively, so that the upper control valve rod and the lower control valve rod control communication between the upper communicating pipe and the measuring pipe assembly and communication between the lower communicating pipe and the measuring pipe assembly respectively. The liquid level meter is widely applied to the technical field of liquid level meters.
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Description

TECHNICAL FIELD

[0001] The utility model relates to liquid level meter technical field especially, it is a kind of anti-leakage liquid level meter. BACKGROUND

[0002] Liquid level meter is a kind of tool commonly used in liquid level measurement, mainly utilizes the principle of communicating vessel to show the liquid level in container on liquid level meter, to facilitate confirmation the liquid level in container, liquid level meter is usually connected fixed with container by mounting seat and communicates with container.

[0003] In prior art, liquid level meter is all installed in the outside of container, and the measuring tube in liquid level meter is mostly glass material, is easily damaged, causes the solution in container to leak from liquid level meter, influences the normal use of liquid level meter, and after breakage, it needs to replace liquid level meter as a whole, it is more wasteful, and inconvenient to replace, thus needing a kind of liquid level meter to solve the above problems. UTILITY MODEL CONTENT

[0004] To solve the problem in prior art that liquid level meter is all installed in the outside of container, and the measuring tube in liquid level meter is mostly glass material, is easily damaged, causes the solution in container to leak from liquid level meter, influences the normal use of liquid level meter, and after breakage, it needs to replace liquid level meter as a whole, it is more wasteful, and inconvenient to replace, a kind of anti-leakage liquid level meter is invented.

[0005] The technical scheme of the utility model is a kind of anti-leakage liquid level meter, including measuring tube assembly, wherein, the both ends of the measuring tube assembly are communicated with upper connector and lower connector, the upper connector and lower connector are respectively communicated with upper communicating pipe and lower communicating pipe, the upper communicating pipe and lower communicating pipe are connected with upper connection flange and lower connection flange, the upper connector and lower connector are respectively threadedly connected with upper movable joint and lower movable joint, the both ends of the measuring tube assembly are inserted on the upper movable joint and lower movable joint, the upper connector and lower connector are respectively threadedly connected with upper control valve stem and lower control valve stem, so that the communication of upper communicating pipe and lower communicating pipe with measuring tube assembly is controlled by upper control valve stem and lower control valve stem respectively.

[0006] Preferably, first threaded hole and second threaded hole that are communicated are formed in the upper connector, the upper movable joint and upper control valve stem are respectively threadedly connected in first threaded hole and second threaded hole, liquid outlet hole is formed in the upper connector, the upper communicating pipe is connected on the upper connector at liquid outlet hole, the upper communicating pipe is communicated with liquid outlet hole, liquid outlet hole is vertically arranged and communicated with second threaded hole.

[0007] Preferably, the lower connecting head is provided with a third threaded hole and a fourth threaded hole in communication, and the lower movable joint and the lower control valve rod are respectively screwed into the third threaded hole and the fourth threaded hole.

[0008] Preferably, the upper connecting head and the upper movable joint are respectively provided with a first clamping ring groove and a second clamping ring groove on the proximal end face, and the first clamping ring groove and the second clamping ring groove are clamped with a first sealing ring.

[0009] Preferably, the lower connecting head and the lower movable joint are respectively provided with a third clamping ring groove and a fourth clamping ring groove on the proximal end face, and the third clamping ring groove and the fourth clamping ring groove are clamped with a second sealing ring.

[0010] Preferably, the upper movable joint is provided with an upper insertion hole, the inner wall of the upper insertion hole is provided with a plurality of upper clamping ring grooves, the upper clamping ring grooves are clamped with an upper sealing ring, and one end of the measuring pipe assembly is inserted into the upper insertion hole through the upper sealing ring.

[0011] Preferably, the lower movable joint is provided with a lower insertion hole, the inner wall of the lower insertion hole is provided with a plurality of lower clamping ring grooves, the lower clamping ring grooves are clamped with a lower sealing ring, and one end of the measuring pipe assembly is inserted into the lower insertion hole through the lower sealing ring.

[0012] Preferably, the upper control valve rod and the lower control valve rod are respectively connected with an upper swivel and a lower swivel.

[0013] The technical scheme of the utility model can achieve the following beneficial effects: (1) the upper connecting head and the lower connecting head are used to connect and communicate the measuring pipe assembly with the upper communication pipe and the lower communication pipe; (2) the upper movable joint and the lower movable joint are used to quickly disassemble and assemble the measuring pipe assembly, and ensure the sealing of the measuring pipe assembly with the upper connecting head and the lower connecting head, avoiding leakage; (3) the upper control valve rod and the lower control valve rod are used to control the opening and closing of the two ends of the measuring pipe assembly with the upper communication pipe and the lower communication pipe, so that the upper communication pipe and the lower communication pipe can be plugged when the measuring pipe assembly is replaced, thereby realizing the convenient replacement of the measuring pipe assembly. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a side view of the utility model of a leakage-proof liquid level meter.

[0015] Figure 2 It is a side view of the utility model of a leakage-proof liquid level meter. Figure 1 It is a local enlarged view of region A.

[0016] Figure 3 For Figure 1 Local enlarged view of the middle B area.

[0017] Wherein, 1, measuring pipe assembly, 2, upper communication pipe, 3, upper connecting flange, 4, lower communication pipe, 5, lower connecting flange, 6, upper connecting head, 7, liquid outlet hole, 8, first threaded hole, 9, upper movable joint, 10, first clamping ring groove, 11, second clamping ring groove, 12, first sealing ring, 13, upper insertion hole, 14, upper clamping ring groove, 15, upper sealing ring, 16, second threaded hole, 17, upper control valve rod, 18, upper swivel, 19, lower connecting head, 20, liquid inlet hole, 21, third threaded hole, 22, lower movable joint, 23, third clamping ring groove, 24, fourth clamping ring groove, 25, second sealing ring, 26, lower insertion hole, 27, lower clamping ring groove, 28, lower sealing ring, 29, fourth threaded hole, 30, lower control valve rod, 31, lower swivel. DETAILED DESCRIPTION

[0018] The technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application. In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0019] In addition, the terms "first", "second", "third" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance. In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0020] The embodiments of the present application disclose a kind of anti-leakage liquid level meter. Refer to Figure 1, including the measuring tube assembly 1, the measuring tube assembly 1 has a measuring tube, a magnetic float, a magnetic flap and a scale bar, for monitoring and displaying the liquid level of the solution in the container. The upper and lower connecting heads 6 and 19 are communicated with the upper and lower communication tubes 2 and 4, so that the two ends of the measuring tube assembly 1 are respectively communicated with the upper and lower communication tubes 2 and 4 through the upper and lower connecting heads 6 and 19, so as to realize the communication between the upper and lower communication tubes 2 and 4 and the container, so that the measuring tube assembly 1 can monitor the liquid level in the container. The upper and lower communication tubes 2 and 4 are sealingly welded with the upper and lower connecting flanges 3 and 5, so that the upper and lower connecting flanges 3 and 5 are connected together to form an integral whole, so as to facilitate the connection of the upper and lower communication tubes 2 and 4 with the container through the upper and lower connecting flanges 3 and 5.

[0021] Referring to Figure 1 、 Figure 2 The upper connecting head 6 is threadedly connected with the upper movable joint 9, specifically, the first threaded hole 8 is formed on the upper connecting head 6, and the upper movable joint 9 is threadedly connected on the upper connecting head 6, so that the upper movable joint 9 is connected together with the upper connecting head 6 to form an integral whole, and the detachable connection of the upper connecting head 6 and the upper movable joint 9 is facilitated by the threaded connection. The first and second clamping ring grooves 10 and 11 are respectively formed on the end faces of the upper connecting head 6 and the upper movable joint 9, and the first sealing ring 12 is clamped in the first and second clamping ring grooves 10 and 11, so that the first sealing ring 12 is clamped and limited by the first and second clamping ring grooves 10 and 11, avoiding the first sealing ring 12 from being separated from the upper connecting head 6 and the upper movable joint 9, so as to block the gap between the upper connecting head 6 and the upper movable joint 9 by the first sealing ring 12, avoiding the liquid from leaking from the gap between the upper connecting head 6 and the upper movable joint 9.

[0022] Referring to Figure 1 、 Figure 3The lower connecting head 19 is threadedly connected with the lower movable joint 22. Specifically, the third threaded hole 21 is formed in the lower connecting head 19, and the lower movable joint 22 is threadedly connected to the lower connecting head 19, so that the lower movable joint 22 is connected together with the lower connecting head 19 to form an integral whole, and the lower connecting head 19 and the lower movable joint 22 are detachably connected through the threaded connection. The third clamping ring groove 23 and the fourth clamping ring groove 24 are respectively formed in the end faces of the lower connecting head 19 and the lower movable joint 22, and the second sealing ring 25 is clamped in the third clamping ring groove 23 and the fourth clamping ring groove 24, so that the second sealing ring 25 is clamped and limited by the third clamping ring groove 23 and the fourth clamping ring groove 24, to prevent the second sealing ring 25 from being separated from the lower connecting head 19 and the lower movable joint 22, thereby using the second sealing ring 25 to block the gap between the lower connecting head 19 and the lower movable joint 22, to prevent liquid from leaking from the gap between the lower connecting head 19 and the lower movable joint 22.

[0023] Referring to Figure 1 , Figure 2 , Figure 3 , the two ends of the measuring pipe assembly 1 are inserted into the upper movable joint 9 and the lower movable joint 22, so that the measuring pipe assembly 1 is detachably connected to the upper movable joint 9 and the lower movable joint 22 through the insertion connection, thereby being connected and communicated with the upper connecting head 6 and the lower connecting head 19. Specifically, the upper insertion hole 13 is formed in the upper movable joint 9, and one end of the measuring pipe assembly 1 is inserted into the upper insertion hole 13, thereby realizing the insertion connection between the upper movable joint 9 and the measuring pipe assembly 1. The inner wall of the upper insertion hole 13 is provided with a plurality of upper clamping ring grooves 14, the upper sealing ring 15 is clamped in the upper clamping ring grooves 14, and one end of the measuring pipe assembly 1 penetrates through the upper sealing ring 15 and is inserted into the upper insertion hole 13, so that the upper sealing ring 15 is clamped and limited by the upper clamping ring grooves 14, to prevent the upper sealing ring 15 from being separated from the upper insertion hole 13, thereby using the upper sealing ring 15 to block the gap between the upper insertion hole 13 and the measuring pipe assembly 1, to prevent liquid from leaking from the gap between the upper insertion hole 13 and the measuring pipe assembly 1. The lower insertion hole 26 is formed in the lower movable joint 22, and one end of the measuring pipe assembly 1 is inserted into the lower insertion hole 26, thereby realizing the insertion connection between the lower movable joint 22 and the measuring pipe assembly 1. The inner wall of the lower insertion hole 26 is provided with a plurality of lower clamping ring grooves 27, the lower sealing ring 28 is clamped in the lower clamping ring grooves 27, and one end of the measuring pipe assembly 1 penetrates through the lower sealing ring 28 and is inserted into the lower insertion hole 26, so that the lower sealing ring 28 is clamped and limited by the lower clamping ring grooves 27, to prevent the lower sealing ring 28 from being separated from the lower insertion hole 26, thereby using the lower sealing ring 28 to block the gap between the lower insertion hole 26 and the measuring pipe assembly 1, to prevent liquid from leaking from the gap between the lower insertion hole 26 and the measuring pipe assembly 1.

[0024] Referring to Figure 1 ,Figure 2 , Figure 3 The upper control valve rod 17 and the lower control valve rod 30 are respectively screwed on the upper connector 6 and the lower connector 19, so that the upper communication pipe 2 and the lower communication pipe 4 are respectively controlled to communicate with the measuring pipe assembly 1 through the upper control valve rod 17 and the lower control valve rod 30. Specifically, the upper control valve rod 17 is screwed on the second threaded hole 16 which is communicated with the first threaded hole 8, so that the upper control valve rod 17 is screwed together with the upper connector 6 through the upper control valve rod 17, thereby adjusting the position of one end of the upper control valve rod 17 in the upper connector 6 by rotating the upper control valve rod 17. The lower control valve rod 30 is screwed on the fourth threaded hole 29 which is communicated with the third threaded hole 21, so that the lower control valve rod 30 is screwed together with the lower connector 19 through the lower control valve rod 30, thereby adjusting the position of one end of the lower control valve rod 30 in the lower connector 19 by rotating the lower control valve rod 30. The upper control valve rod 17 and the lower control valve rod 30 are respectively detachably fixedly connected with the upper swivel ring 18 and the lower swivel ring 31 through bolts, so that the upper control valve rod 17 and the lower control valve rod 30 are respectively controlled to rotate through the upper swivel ring 18 and the lower swivel ring 31.

[0025] Referring to Figure 1 , Figure 2 , Figure 3 The upper control valve rod 17 and the lower control valve rod 30 are respectively detachably fixedly connected with the upper swivel ring 18 and the lower swivel ring 31 through bolts, so that the upper control valve rod 17 and the lower control valve rod 30 are respectively controlled to rotate through the upper swivel ring 18 and the lower swivel ring 31.

[0026] In use, when the measuring tube assembly 1 is damaged and needs to be replaced, first, the upper control valve rod 17 and the lower control valve rod 30 are rotated to block the liquid outlet hole 7 and the liquid inlet hole 20, then the upper movable joint 9 and the lower movable joint 22 are rotated to be separated from the upper connecting head 6 and the lower connecting head 19 respectively, then the measuring tube assembly 1, the upper movable joint 9 and the lower movable joint 22 are removed, then the upper movable joint 9 and the lower movable joint 22 are separated from the damaged measuring tube assembly 1, then the upper movable joint 9 and the lower movable joint 22 are sleeved on the new measuring tube assembly 1, then the upper movable joint 9 and the lower movable joint 22 are respectively screwed on the upper connecting head 6 and the lower connecting head 19, and finally the upper control valve rod 17 and the lower control valve rod 30 are rotated to make the liquid outlet hole 7 and the first threaded hole 8 communicate, and the liquid inlet hole 20 and the third threaded hole 21 communicate.

[0027] In the above embodiments, the device elements are conventional device elements unless otherwise specified, and the structure setting mode, working mode or control mode are conventional setting mode, working mode or control mode unless otherwise specified.

[0028] The above embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A leak-tight level gauge comprising a measuring tube assembly (1), wherein Both ends of the measuring pipe assembly (1) are communicated with an upper connecting head (6) and a lower connecting head (19), the upper connecting head (6) and the lower connecting head (19) are respectively communicated with an upper communicating pipe (2) and a lower communicating pipe (4), the upper communicating pipe (2) and the lower communicating pipe (4) are connected with an upper connecting flange (3) and a lower connecting flange (5), the upper connecting head (6) and the lower connecting head (19) are respectively threadedly connected with an upper movable joint (9) and a lower movable joint (22), both ends of the measuring pipe assembly (1) are inserted into the upper movable joint (9) and the lower movable joint (22), the upper connecting head (6) and the lower connecting head (19) are respectively threadedly connected with an upper control valve rod (17) and a lower control valve rod (30), so that the upper communicating pipe (2) and the lower communicating pipe (4) are respectively controlled to communicate with the measuring pipe assembly (1) through the upper control valve rod (17) and the lower control valve rod (30).

2. A leakproof liquid level gauge according to claim 1, wherein A first threaded hole (8) and a second threaded hole (16) are formed in the upper connecting head (6) and communicated with each other, the upper movable joint (9) and the upper control valve rod (17) are respectively threadedly connected in the first threaded hole (8) and the second threaded hole (16), a liquid outlet hole (7) is formed in the upper connecting head (6), the upper communicating pipe (2) is connected to the upper connecting head (6) at the liquid outlet hole (7), the upper communicating pipe (2) is communicated with the liquid outlet hole (7), and the liquid outlet hole (7) is vertically arranged and communicated with the second threaded hole (16).

3. A leakproof liquid level gauge according to claim 1, wherein A third threaded hole (21) and a fourth threaded hole (29) are formed in the lower connecting head (19) and communicated with each other, the lower movable joint (22) and the lower control valve rod (30) are respectively threadedly connected in the third threaded hole (21) and the fourth threaded hole (29), a liquid inlet hole (20) is formed in the lower connecting head (19), the lower communicating pipe (4) is connected to the lower connecting head (19) at the liquid inlet hole (20), the lower communicating pipe (4) is communicated with the liquid inlet hole (20), and the liquid inlet hole (20) is vertically arranged and communicated with the fourth threaded hole (29).

4. A leakproof liquid level gauge according to claim 1, wherein First and second clamping ring grooves (10) and (11) are respectively formed in the end faces of the upper connecting head (6) and the upper movable joint (9) close to each other, and a first sealing ring (12) is clamped in the first and second clamping ring grooves (10) and (11).

5. A leakproof liquid level gauge according to claim 1, wherein Third and fourth clamping ring grooves (23) and (24) are respectively formed in the end faces of the lower connecting head (19) and the lower movable joint (22) close to each other, and a second sealing ring (25) is clamped in the third and fourth clamping ring grooves (23) and (24).

6. A leakproof liquid level gauge according to claim 1, wherein An upper insertion hole (13) is formed in the upper movable joint (9), a plurality of upper clamping ring grooves (14) are formed in the inner wall of the upper insertion hole (13), an upper sealing ring (15) is clamped in the upper clamping ring grooves (14), and one end of the measuring pipe assembly (1) is inserted into the upper insertion hole (13) through the upper sealing ring (15).

7. A leakproof liquid level gauge according to claim 1, wherein The lower movable joint (22) is provided with a lower insertion hole (26), the inner wall of the lower insertion hole (26) is provided with a plurality of lower clamping ring grooves (27), the lower clamping ring grooves (27) are clamped with lower sealing rings (28), and one end of the measuring pipe assembly (1) is inserted into the lower insertion hole (26) through the lower sealing rings (28).

8. A leakproof liquid level gauge according to claim 1, wherein The upper control valve rod (17) and the lower control valve rod (30) are respectively connected with an upper swivel (18) and a lower swivel (31).