Pressure type liquid level meter

Abstract

The utility model relates to the technical field of liquid level meters, and discloses a pressure type liquid level meter. Comprising a liquid level meter probe body, a gas guide cable is fixedly connected to the top of the liquid level meter probe body, a liquid level meter head is fixedly connected to the end, away from the liquid level meter probe body, of the gas guide cable, and an auxiliary straightening mechanism is arranged on the outer wall of the liquid level meter probe body; the auxiliary straightening mechanism comprises a vertical connecting rod installed on the outer wall of the end, close to the liquid level meter probe body, of the gas guide cable, a rectangular balancing weight is slidably connected to the outer wall of the vertical connecting rod, and a rectangular positioning block is installed on the outer wall of the middle section of the liquid level meter probe body. Two positioning rods are symmetrically and fixedly connected to the side wall of the top end of the side, close to the rectangular balancing weight, of the rectangular positioning block, and two L-shaped inserting rods are symmetrically and fixedly connected to the side wall of the bottom end of the rectangular balancing weight. The liquid level meter probe body keeps static measurement, dynamic pressure interference caused by floating is avoided, and the measurement precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of liquid level gauge technology, and more specifically, to a pressure liquid level gauge. Background Technology

[0002] Pressure level gauges are devices that determine liquid level by measuring the static pressure of a liquid. They are widely used in industries such as industry, chemical industry, and water treatment. Their structure is relatively simple, mainly consisting of a pressure sensor, pressure guide tube, transmitter, seals, and housing. In practical applications, it is necessary to select appropriate materials and configurations based on the specific operating environment and media characteristics to ensure the long-term stable operation of the equipment.

[0003] When using a pressure level gauge, the probe must first be immersed in the liquid to be measured. When the density of the probe is less than that of the liquid, the probe will float on the surface of the liquid. At the same time, when the liquid flows or fluctuates, if the probe is not fixed or is not fixed firmly, the probe position will also be unstable, and it will float with the liquid flow. When this floating phenomenon occurs, it can easily affect the performance of the sensor and the liquid level measurement results. Utility Model Content

[0004] The purpose of this invention is to provide a pressure level gauge to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides a pressure-type liquid level gauge, including a liquid level gauge probe body. A gas guide cable is fixedly connected to the top of the liquid level gauge probe body. A liquid level gauge head is fixedly connected to the end of the gas guide cable away from the liquid level gauge probe body. An auxiliary straightening mechanism is provided on the outer wall of the liquid level gauge probe body. The auxiliary straightening mechanism includes a vertical connecting rod installed on the outer wall of the gas guide cable near the end of the liquid level gauge probe body. A rectangular counterweight is slidably connected to the outer wall of the vertical connecting rod. A rectangular positioning block is installed on the outer wall of the middle section of the liquid level gauge probe body. Two positioning rods are symmetrically fixedly connected to the top side wall of the rectangular positioning block near the rectangular counterweight. Two L-shaped inserts are symmetrically fixedly connected to the bottom side wall of the rectangular counterweight. The ends of the two positioning rods away from the side wall of the rectangular positioning block are respectively inserted and engaged with the two L-shaped inserts.

[0006] As a further improvement to this technical solution, a long sliding groove is provided on the inner wall of the vertical connecting rod away from the air guide cable. A support slider is slidably connected inside the long sliding groove, and the outer wall of the support slider away from the air guide cable is fixedly connected to the side wall of the rectangular counterweight.

[0007] As a further improvement to this technical solution, rectangular limiting blocks are fixedly connected to the top and bottom of the vertical connecting rod, and the vertical connecting rod always remains parallel to the liquid level gauge probe body when the liquid level gauge probe body is vertical.

[0008] As a further improvement to this technical solution, damping blocks are fixedly connected to the side walls of the two L-shaped inserts away from the positioning rod. The damping blocks are made of silicone, which is resistant to high temperatures and chemical corrosion and is suitable for harsh environments.

[0009] As a further improvement to this technical solution, a number of first fixing buckles are uniformly fixed to the outer wall of the vertical connecting rod away from the rectangular counterweight. The ends of the first fixing buckles away from the vertical connecting rod are snapped onto the outer wall of the air guide cable. All the first fixing buckles are fixed by bolts.

[0010] As a further improvement to this technical solution, the rectangular positioning block is fixedly connected to a second fixing buckle on the outer wall of one side of the positioning rod. The end of the second fixing buckle away from the rectangular positioning block is snapped onto the outer wall of the liquid level gauge probe body. The second fixing buckle is also fixed by bolts.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] In this pressure-type liquid level gauge, an auxiliary straightening mechanism is set up. Two L-shaped plugs are inserted and matched with two positioning rods, so that the rectangular counterweight block can cooperate with the rectangular positioning block and positioning rod to straighten the liquid level gauge probe body. This ensures that the vertical connecting rod, the rectangular counterweight block and the liquid level gauge probe body are all in a vertical state, so that the liquid level gauge probe body remains stationary for measurement, avoiding dynamic pressure interference caused by floating and improving measurement accuracy. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a partial cross-sectional view of the three-dimensional structure of relevant components of the liquid level gauge probe body of the utility model;

[0015] Figure 3 This is a three-dimensional structural diagram of the relevant components of the rectangular counterweight of the utility model.

[0016] The meanings of the labels in the diagram are as follows:

[0017] 1. Level gauge probe body; 2. Gas guide cable; 3. Level gauge head; 4. Auxiliary straightening mechanism; 41. Vertical connecting rod; 42. Rectangular counterweight; 43. Rectangular positioning block; 44. Positioning rod; 45. L-shaped insert rod; 51. Long slide groove; 52. Support slider; 53. Rectangular limit block; 6. Damping block; 7. First fixing buckle; 71. Second fixing buckle. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] Example 1

[0021] Please see Figures 1-3 As shown, this embodiment provides a pressure-type liquid level gauge, including a liquid level gauge probe body 1. A gas guide cable 2 is fixedly connected to the top of the liquid level gauge probe body 1. The end of the gas guide cable 2 away from the liquid level gauge probe body 1 is fixedly connected to a liquid level gauge head 3. By vertically placing the liquid level gauge probe body 1 into the liquid to be detected, the liquid level gauge probe body 1 and the liquid level gauge head 3 are connected by the gas guide cable 2, so that the liquid level gauge probe body 1 can transmit the liquid level information to the display screen on the liquid level gauge head 3 for display by means of an electrical signal.

[0022] An auxiliary straightening mechanism 4 is provided on the outer wall of the level gauge probe body 1. The auxiliary straightening mechanism 4 includes a vertical connecting rod 41 installed on the outer wall of the gas guide cable 2 near one end of the level gauge probe body 1. A rectangular counterweight 42 is slidably connected to the outer wall of the vertical connecting rod 41. A rectangular positioning block 43 is installed on the outer wall of the middle section of the level gauge probe body 1. Two positioning rods 44 are symmetrically fixedly connected to the top side wall of the rectangular positioning block 43 near the rectangular counterweight 42. Two L-shaped inserts 45 are symmetrically fixedly connected to the bottom side wall of the rectangular counterweight 42. The ends of the two positioning rods 44 away from the side wall of the rectangular positioning block 43 are respectively inserted into the two L-shaped inserts 45. A long sliding groove 51 is opened on the inner wall of the vertical connecting rod 41 away from the gas guide cable 2. A support slider 52 is slidably connected inside the long sliding groove 51. The support slider 52 is located away from the side wall of the vertical connecting rod 41. One side of the outer wall of the air guide cable 2 is fixedly connected to the side wall of the rectangular counterweight 42. The top and bottom of the vertical connecting rod 41 are fixedly connected to rectangular limiting blocks 53. When the vertical connecting rod 41 is in the vertical state of the liquid level probe body 1, it always remains parallel to the liquid level probe body 1. When the liquid level probe body 1 is inside the liquid to be detected, the rectangular counterweight 42 slides from the end of the air guide cable 2 toward the side of the liquid level probe body 1 through the support slider 52 in the long slide groove 51 under its own weight. This allows the rectangular counterweight 42 to slide toward the side of the rectangular positioning block 43 on the outer wall of the vertical connecting rod 41. During the sliding, the rectangular limiting block 53 can limit the up and down sliding of the support slider 52 in the long slide groove 51, thereby ensuring the sliding stability of the rectangular counterweight 42.

[0023] As the rectangular counterweight 42 moves to the bottom of the outer wall of the vertical connecting rod 41, under the action of gravity, it works with the liquid level gauge probe body 1 to straighten the gas guide cable 2, ensuring that the liquid level gauge probe body 1 and the gas guide cable 2 are always vertical inside the liquid. This prevents the gas guide cable 2 from bending due to liquid buoyancy and liquid flow. At the same time, the two L-shaped plugs 45 are connected to the two positioning rods 44, allowing the rectangular counterweight 42 to work with the rectangular positioning block 43 and positioning rods 44 to straighten the liquid level gauge probe body 1. This ensures that the vertical connecting rod 41, the rectangular counterweight 42, and the liquid level gauge probe body 1 are all in a vertical state, keeping the liquid level gauge probe body 1 stationary for measurement. This avoids dynamic pressure interference caused by floating and improves measurement accuracy.

[0024] Damping blocks 6 are fixedly connected to the side walls of the two L-shaped insertion rods 45 away from the positioning rod 44. The damping blocks 6 are made of silicone, which is resistant to high temperature and chemical corrosion and suitable for harsh environments. With the damping blocks 6, when the positioning rod 44 and the L-shaped insertion rods 45 are inserted, the liquid level probe body 1 is slightly shaken by the liquid flow, causing the end of the positioning rod 44 to contact and press against the damping blocks 6. Since the damping blocks 6 are elastic and suitable for use in various liquids, the damping blocks 6 can offset the displacement of the positioning rod 44, which helps to maintain the stability of the liquid level probe body 1. This results in a small fluctuation in the value of the liquid level probe body 1 during measurement, thus improving the accuracy of liquid level detection.

[0025] Several first fixing buckles 7 are evenly fixed to the outer wall of the vertical connecting rod 41 on the side away from the rectangular counterweight 42. The ends of the first fixing buckles 7 away from the vertical connecting rod 41 are snapped onto the outer wall of the air guide cable 2. The first fixing buckles 7 are all fixed by bolts. The purpose of setting multiple first fixing buckles 7 is to firmly fix the vertical connecting rod 41 to the outer wall of the air guide cable 2. At the same time, the bolts can facilitate the installation and disassembly of the vertical connecting rod 41. The rectangular positioning block 43 is fixed to the outer wall of the positioning rod 44 on the side with a second fixing buckle 71. The end of the second fixing buckle 71 away from the rectangular positioning block 43 is snapped onto the outer wall of the liquid level gauge probe body 1. The second fixing buckle 71 is also fixed by bolts. The second fixing buckle 71 is used to fix the rectangular positioning block 43 to the outer wall of the liquid level gauge probe body 1, ensuring that the rectangular positioning block 43 remains stable when the liquid level gauge probe body 1 is inside the measured liquid. In addition, the second fixing buckle 71 and the bolts can facilitate installation and disassembly.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pressure-type liquid level gauge, comprising a liquid level gauge probe body (1), characterized in that: A gas guide cable (2) is fixedly connected to the top of the liquid level gauge probe body (1). A liquid level gauge head (3) is fixedly connected to one end of the gas guide cable (2) away from the liquid level gauge probe body (1). An auxiliary calibration mechanism (4) is provided on the outer wall of the liquid level gauge probe body (1). The auxiliary calibration mechanism (4) includes a vertical connecting rod (41) installed on the outer wall of the gas guide cable (2) near the liquid level gauge probe body (1). A rectangular rod is slidably connected to the outer wall of the vertical connecting rod (41). A rectangular counterweight (42) is provided. A rectangular positioning block (43) is installed on the outer wall of the middle section of the liquid level gauge probe body (1). Two positioning rods (44) are symmetrically fixedly connected to the top side wall of the rectangular positioning block (43) near the rectangular counterweight (42). Two L-shaped plugs (45) are symmetrically fixedly connected to the bottom side wall of the rectangular counterweight (42). The two positioning rods (44) are respectively inserted and engaged with the two L-shaped plugs (45) at the side wall away from the rectangular positioning block (43).

2. The pressure level gauge according to claim 1, characterized in that: The vertical connecting rod (41) has a long sliding groove (51) on the inner wall away from the air guide cable (2). A support slider (52) is slidably connected inside the long sliding groove (51). The outer wall of the support slider (52) away from the air guide cable (2) is fixedly connected to the side wall of the rectangular counterweight (42).

3. The pressure level gauge according to claim 1, characterized in that: The vertical connecting rod (41) is fixedly connected to a rectangular limiting block (53) at both the top and bottom. The vertical connecting rod (41) remains parallel to the liquid level gauge probe body (1) when the liquid level gauge probe body (1) is vertical.

4. The pressure level gauge according to claim 1, characterized in that: Both L-shaped inserts (45) are fixedly connected to a damping block (6) on the side wall away from the positioning rod (44). The damping block (6) is made of silicone, which is resistant to high temperature and chemical corrosion and is suitable for harsh environments.

5. The pressure level gauge according to claim 1, characterized in that: The vertical connecting rod (41) is uniformly fixed with several first fixing buckles (7) on the outer wall away from the rectangular counterweight (42). The ends of the first fixing buckles (7) away from the vertical connecting rod (41) are snapped onto the outer wall of the air guide cable (2). The first fixing buckles (7) are all fixed by bolts.

6. The pressure level gauge according to claim 1, characterized in that: The rectangular positioning block (43) is fixedly connected to the outer wall of the positioning rod (44) with a second fixing buckle (71). The end of the second fixing buckle (71) away from the rectangular positioning block (43) is snapped onto the outer wall of the liquid level gauge probe body (1). The second fixing buckle (71) is also fixed by bolts.

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