A level transmitter housing structure

Abstract

The utility model discloses a kind of level transmitter shell structures, involve tuning fork liquid level switch application field, including tuning fork liquid level switch shell and tuning fork sensor, tuning fork liquid level switch shell one end is equipped with second outer thread, the outer thread of second outer thread is connected with second nut, the side of second nut is provided with extension block, recess is equipped in the side of extension block, the outside of tuning fork sensor is equipped with compression ring, the side of compression ring is provided with metal hook.The utility model is equipped with second outer thread in the one end of tuning fork liquid level switch shell, the outer thread of second outer thread is connected second nut, the outside of tuning fork sensor is equipped with compression ring, compression ring is connected by metal hook and the second nut installed at tuning fork liquid level switch end portion, and then by metal hook when second nut is twisted, tightening compression ring will be pulled, make compression ring firmly compress tuning fork sensor whole, to reduce the risk that circuit equipment in tuning fork liquid level switch shell is damp.

Description

Technical Field

[0001] This utility model relates to the application field of tuning fork level switches, specifically a housing structure for a level transmitter. Background Technology

[0002] A tuning fork level switch is a device that detects liquid levels through vibration. It uses the change in the frequency of the tuning fork's vibration in the liquid to determine the level. When the liquid level reaches the vibrating part of the tuning fork, the damping effect of the liquid will cause the vibration frequency of the tuning fork to change, thereby triggering the switch to operate.

[0003] The tuning fork level switch mainly consists of a housing, a vibration generator, an electronic module, and a tuning fork sensor. The vibration generator and electronic module are installed inside the housing, while the end of the tuning fork sensor is fitted with a sealing ring and inserted into the housing.

[0004] Tuning fork level switches have two mounting methods: external thread and flange, which are used to fix the tuning fork level switch to the container or pipeline. However, in practical applications, tuning fork level switches are sometimes installed in dark and humid places. The tuning fork sensor is inserted into the housing by a sealing ring, which makes the seal between the tuning fork sensor and the housing limited, which can easily cause the internal circuitry to get damp. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a housing structure for a level transmitter to solve the technical problems mentioned in the background.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a level transmitter housing structure, including a tuning fork level switch housing and a tuning fork sensor, wherein one end of the tuning fork level switch housing is provided with a second external thread, and the external thread of the second external thread is connected to a second nut, an extension block is provided on the side of the second nut, and a groove is provided on the side of the extension block, and a clamping ring is sleeved on the outside of the tuning fork sensor, and a metal hook is provided on the side of the clamping ring, and the metal hook matches the groove.

[0007] By adopting the above technical solution, a second external thread is opened at one end of the tuning fork level switch housing, and a second nut is connected to the external thread of the second external thread. A clamping ring is sleeved on the outside of the tuning fork sensor. The clamping ring is connected to the second nut installed at the end of the tuning fork level switch through a metal hook. When the second nut is turned, the clamping ring is pulled and tightened through the metal hook, so that the clamping ring firmly presses the tuning fork sensor as a whole. This not only prevents the tuning fork sensor from loosening, but also improves the sealing between the tuning fork sensor and the tuning fork level switch housing, thereby reducing the risk of moisture to the circuit equipment inside the tuning fork level switch housing.

[0008] The present invention is further configured such that the extension block is provided in two sets, and the two sets of extension blocks are symmetrically arranged about the second nut, and the sides of the two sets of extension blocks are provided with grooves.

[0009] Preferably, by setting two sets of extension blocks and opening two sets of grooves, the installation of the clamping ring and the metal hook is more stable.

[0010] The present invention is further configured such that the metal hooks are provided in two sets, and the two sets of metal hooks are symmetrically arranged with the clamping rings, and the two sets of metal hooks and the two sets of grooves are respectively engaged.

[0011] Preferably, by setting two sets of metal hooks to engage the clamping ring with the second nut, the combination of the second nut and the metal ring is made more stable.

[0012] The present invention is further configured such that the tuning fork sensor includes a tuning fork body and a connecting pipe, and one end of the connecting pipe is provided with an electrical connector for connecting to the circuit equipment inside the housing of the tuning fork level switch.

[0013] Preferably, by providing an electrical connector, the tuning fork body of the tuning fork sensor can be electrically connected to the circuitry inside the tuning fork level switch housing.

[0014] The present invention is further configured such that a first nut is provided on the outside of the insertion tube, and one end of the first nut is provided with a first external thread.

[0015] Preferably, by setting a first nut and a first external thread, the tuning fork level switch can be installed on the outer wall of the pipe by tightening the first nut through the first external thread.

[0016] The present invention is further configured such that a circular hole is provided through one side of the clamping ring, the diameter of which is larger than that of the tuning fork body and smaller than that of the first external thread.

[0017] Preferably, by opening a circular hole, the clamping ring can be first fitted onto the outside of the tuning fork sensor in an assembled manner, and then engaged with the second nut.

[0018] The present invention is further configured such that limiting blocks are provided on the sides of both sets of metal hooks, and limiting grooves matching the limiting blocks are provided on the inner sides of both sets of extension blocks.

[0019] Preferably, by setting a limiting block and a limiting groove, the engagement between the extension block and the metal hook is made more stable.

[0020] The present invention is further configured such that a fitting groove is provided on one side of the first nut, and a sealing ring is installed inside the fitting groove.

[0021] Preferably, by providing a sealing ring, the direct friction between the clamping ring and the end of the tuning fork body can be reduced.

[0022] In summary, the present invention has the following main advantages:

[0023] This invention features a second external thread at one end of the tuning fork level switch housing, with a second nut connected to the outer thread of the second external thread. A clamping ring is fitted around the tuning fork sensor, and the clamping ring is connected to the second nut installed at the end of the tuning fork level switch via a metal hook. When the second nut is tightened, the clamping ring is pulled and tightened by the metal hook, firmly pressing the tuning fork sensor together. This not only prevents the tuning fork sensor from loosening but also improves the sealing between the tuning fork sensor and the tuning fork level switch housing, thereby reducing the risk of moisture damage to the internal circuitry of the tuning fork level switch housing. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 A schematic diagram of the second external thread mechanism for the housing of the tuning fork level switch of this utility model;

[0026] Figure 3 This is a schematic diagram of the tuning fork sensor structure of this utility model;

[0027] Figure 4 A schematic diagram of the fitting groove structure for the tuning fork sensor of this utility model;

[0028] Figure 5 This is a schematic diagram showing the installation of the sealing ring and tuning fork sensor of this utility model;

[0029] Figure 6 This is a schematic diagram of the second nut structure of this utility model;

[0030] Figure 7 This is a schematic diagram showing the distribution of the clamping ring and metal hook of this utility model.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Tuning fork level switch housing; 2. Tuning fork sensor; 201. Tuning fork body; 202. Connecting pipe; 203. Electrical connector; 204. First nut; 205. First external thread; 3. Second external thread; 4. Fitting groove; 5. Second nut; 6. Extension block; 7. Groove; 8. Limiting groove; 9. Pressing ring; 10. Circular hole; 11. Metal hook; 12. Limiting block; 13. Sealing ring. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0034] The embodiments of this utility model will be described below based on its overall structure.

[0035] Please see Figures 1-7 A level transmitter housing structure includes a tuning fork level switch housing 1 and a tuning fork sensor 2. One end of the tuning fork level switch housing 1 has a second external thread 3, and the external thread of the second external thread 3 is connected to a second nut 5. An extension block 6 is provided on the side of the second nut 5, and a groove 7 is provided on the side of the extension block 6. A clamping ring 9 is fitted around the tuning fork sensor 2, and a metal hook 11 is provided on the side of the clamping ring 9, with the metal hook 11 matching the groove 7. By installing the second nut 5 through the second external thread 3 at one end of the tuning fork level switch housing 1, and then fitting the clamping ring 9 around the tuning fork sensor 2, the clamping ring 9 is connected to the second nut 5 at the end of the tuning fork level switch via the metal hook. When the second nut 5 is tightened, the metal hook 11 pulls and tightens the clamping ring 9, firmly pressing the entire tuning fork sensor 2, thereby reducing the risk of moisture damage to the internal circuitry of the tuning fork level switch housing 1.

[0036] Please refer to the above embodiments for further details. Figure 6 There are two sets of extension blocks 6, and the two sets of extension blocks 6 are symmetrically arranged about the second nut 5. The sides of the two sets of extension blocks 6 are provided with grooves 7. By setting two sets of extension blocks 6 and providing two sets of grooves 7, the installation of the clamping ring 9 and the metal hook 11 is more stable.

[0037] Please refer to the above embodiments for further details. Figure 7 Two sets of metal hooks 11 are provided, and the two sets of metal hooks 11 are symmetrically arranged with the clamping ring 9. The two sets of metal hooks 11 and the two sets of grooves 7 are respectively engaged. By setting two sets of metal hooks 11, the clamping ring 9 is engaged with the second nut 5, making the combination of the second nut 5 and the metal ring 11 more stable.

[0038] Please refer to the above embodiments for further details. Figure 3 The tuning fork sensor 2 includes a tuning fork body 201 and a connecting pipe 202. One end of the connecting pipe 202 is provided with an electrical connector 203. The electrical connector 203 is used to connect with the circuit equipment inside the tuning fork level switch housing 1. By providing the electrical connector 203, the tuning fork body 201 of the tuning fork sensor 2 can be electrically connected with the circuit equipment inside the tuning fork level switch housing 1.

[0039] Please refer to the above embodiments for further details. Figure 3 The insertion pipe 202 is provided with a first nut 204 on the outside, and one end of the first nut 204 is provided with a first external thread 205. By setting the first nut 204 and the first external thread 205, the tuning fork level switch can be installed on the outer wall of the pipe by turning the first nut 204 through the first external thread 205.

[0040] Please refer to the above embodiments for further details. Figure 1 A circular hole 10 is provided through one side of the clamping ring 9. The diameter of the circular hole 10 is larger than that of the tuning fork body 201 and smaller than that of the first external thread 205. By providing the circular hole 10, the clamping ring 9 can be first fitted onto the outside of the tuning fork sensor 2 in an assembled manner, and then engaged with the second nut 5.

[0041] Please refer to the above embodiments for further details. Figure 6 and Figure 7 Both sets of metal hooks 11 are provided with limiting blocks 12 on their sides, and both sets of extension blocks 6 are provided with limiting grooves 8 that match the limiting blocks 12 on their inner sides. By setting the limiting blocks 12 and the limiting grooves 8, the engagement between the extension blocks 6 and the metal hooks 11 is made more stable.

[0042] Please refer to the above embodiments for further details. Figure 4 and Figure 5 The first nut 204 has a fitting groove 4 on one side, and a sealing ring 13 is installed inside the fitting groove 4. By setting the sealing ring 13, the direct friction between the clamping ring 9 and the end of the tuning fork body 201 can be reduced.

[0043] In practical operation, the present invention is as follows: First, the operator takes the second nut 5 and screws it onto the second external thread 3 of the tuning fork level switch housing 1. Then, a sealing strip is fitted over the outside of the insertion tube 202 of the tuning fork sensor 2, and a sealing ring 13 is installed in the fitting groove 4. Next, the insertion tube 202 of the tuning fork sensor 2 is inserted into the mounting hole of the tuning fork level switch housing 1. Then, the clamping ring 9 is fitted over the outside of the tuning fork sensor 2, and the clamping ring 9 is clamped to the sealing ring 13. At the same time, the two sets of metal hooks 11 on the side of the clamping ring 9 are engaged in the groove 7, and the limiting block 12 on the side of the metal hook 11 is engaged in the limiting groove 8.

[0044] Next, use a special wrench to turn the second nut 5. When turning the second nut 5, ensure that the wrench is away from the two sets of metal hooks 11 to avoid the two sets of metal hooks 11 interfering with the wrench engaging with the outside of the second nut 5. Turning the second nut 5 with the wrench will pull the metal hooks 11 and the clamping ring 9 to move, thereby making the clamping ring 9 firmly press the entire tuning fork sensor 2, improving the sealing between the tuning fork level switch housing 1 and the tuning fork sensor 2.

[0045] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A level transmitter housing structure, comprising a tuning fork level switch housing (1) and a tuning fork sensor (2), characterized in that: The tuning fork level switch housing (1) has a second external thread (3) at one end, and the external thread of the second external thread (3) is connected to a second nut (5). The side of the second nut (5) is provided with an extension block (6), and the side of the extension block (6) is provided with a groove (7). The tuning fork sensor (2) is fitted with a clamping ring (9), and the side of the clamping ring (9) is provided with a metal hook (11), and the metal hook (11) matches the groove (7).

2. The housing structure of a level transmitter according to claim 1, characterized in that: The extension block (6) is provided in two sets, and the two sets of extension blocks (6) are symmetrically arranged about the second nut (5), and the sides of the two sets of extension blocks (6) are provided with grooves (7).

3. The housing structure of a level transmitter according to claim 2, characterized in that: The metal hooks (11) are provided in two sets, and the two sets of metal hooks (11) are symmetrically arranged with the clamping ring (9), and the two sets of metal hooks (11) and the two sets of grooves (7) are respectively engaged.

4. The housing structure of a level transmitter according to claim 3, characterized in that: The tuning fork sensor (2) includes a tuning fork body (201) and a connecting tube (202), and one end of the connecting tube (202) is provided with an electrical connector (203), which is used to connect to the circuit equipment inside the tuning fork level switch housing (1).

5. The housing structure of a level transmitter according to claim 4, characterized in that: The insertion tube (202) is provided with a first nut (204) on its outside, and one end of the first nut (204) is provided with a first external thread (205).

6. The housing structure of a level transmitter according to claim 5, characterized in that: A circular hole (10) is provided through one side of the clamping ring (9). The diameter of the circular hole (10) is larger than that of the tuning fork body (201) and smaller than that of the first external thread (205).

7. The housing structure of a level transmitter according to claim 6, characterized in that: Both sets of metal hooks (11) are provided with limiting blocks (12) on their sides, and both sets of extension blocks (6) are provided with limiting grooves (8) that match the limiting blocks (12) on their inner sides.

8. The housing structure of a level transmitter according to claim 7, characterized in that: The first nut (204) has a fitting groove (4) on one side, and a sealing ring (13) is installed inside the fitting groove (4).

Images