Cable double-sealing structure of throw-in type liquid level meter

Abstract

The utility model relates to a cable double-sealing structure of a throw-in type liquid level meter, which comprises a shell, a cable penetrates into the shell to be connected with an electronic element, and a first sealing structure and a second sealing structure which are used for sealing the cable and the shell are sleeved on the cable. In the sealing process, the first sealing structure adopts plane sealing, and the first locking assembly extrudes the first sealing component, so that the first sealing component deforms, and a first layer of sealing is formed between the cable and the shell; the second sealing structure adopts conical surface sealing, the second locking assembly extrudes the second sealing component, the second sealing component deforms to fill the first gap, and a second layer of sealing is formed; according to the double-sealing structure, under the working conditions of long-term high and low temperature alternation, vibration, impact and the like, the cable cannot be extruded and deformed, and even if the second sealing component is loosened under the vibration working condition to cause sealing failure of the second sealing structure, the first sealing structure can still maintain a good sealing effect.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing of immersion type liquid level gauges, in particular to a cable double sealing structure of immersion type liquid level gauges. Background Art

[0002] Since the submersible level meter works in liquid for a long time, its waterproof requirement is particularly high. The place where waterproof failure is most likely to occur is the cable outlet, so the cable sealing is of utmost importance. The level meter will encounter various complex working conditions during use, including but not limited to high and low temperature alternation, vibration, impact, etc. These complex working conditions will cause abnormalities such as cable deformation and loosening of sealing materials, causing cable sealing failure, which will cause waterproof failure of the level meter, thereby causing the entire level meter to fail. After the level meter fails, it can only be replaced, which will cause great losses to the user.

[0003] At present, the existing cable sealing joints will cause the cable to be squeezed and deformed during the process of tightening the seal. The sealing can be satisfied when the temperature change is small, but in the long-term high and low temperature alternating environment, the cable squeeze deformation and the deformation caused by the use temperature will cause the cable seal to fail, thereby causing the entire liquid level meter to fail and be damaged. At the same time, the liquid level meter is subjected to vibration and impact, which will loosen the bolts that press the sealing material of the liquid level meter, thereby forming a gap between the sealing material and the cable. When the gap expands to the point where liquid can enter, the cable seal will fail. Utility Model Content

[0004] In view of the shortcomings of the prior art mentioned above, the purpose of the utility model is to provide a double sealing structure for the cable of a immersion liquid level gauge, which is used to solve the problem that the existing immersion liquid level gauge is easily deformed by the cable and the tightening bolts of the sealing material loosen under harsh working conditions such as high and low temperature alternation, vibration, and impact, resulting in the waterproof failure of the liquid level gauge.

[0005] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides a cable double sealing structure of a submersible liquid level meter, comprising:

[0006] A housing, wherein the housing has an accommodating cavity, a first mounting groove, and a second mounting groove in sequence along the axial direction, the accommodating cavity, the first mounting groove, and the second mounting groove are connected, the accommodating cavity is used to accommodate electronic components, and the cable passes through the first mounting groove and the second mounting groove to be connected to the electronic components in the accommodating cavity;

[0007] A first sealing structure, sleeved on the cable, comprising a first sealing component and a first locking assembly, wherein the first sealing component contacts the bottom of the first mounting groove, the first locking assembly cooperates with the first sealing component in a plane, and the first locking assembly is locked and connected to the inner wall of the accommodating cavity;

[0008] A second sealing structure is sleeved on the cable, and the second sealing structure includes a second sealing component and a second locking assembly. The second sealing component contacts the bottom of the second mounting groove, the second locking assembly cooperates with the conical surface of the second sealing component, and the second sealing component and the second locking assembly have a first gap along the axial direction of the second mounting groove, and the second locking assembly is locked and connected to the side wall of the second mounting groove.

[0009] Optionally, the first locking assembly includes a first locking component and a first pressing component, the first locking component is threadedly engaged with the inner wall of the accommodating cavity, the first locking component abuts against the first pressing component, the first pressing component abuts against the first sealing component, and the first pressing component is slidably engaged with the side wall of the first mounting groove.

[0010] Optionally, the first pressing component includes a first limiting portion and a pressing portion, the diameter of the pressing portion is smaller than the diameter of the first mounting groove, and the diameter of the first limiting portion is larger than the diameter of the first mounting groove.

[0011] Optionally, the second sealing component is clearance-matched with the second mounting groove, and a second gap is provided between the second sealing component and the second mounting groove.

[0012] Optionally, the second sealing component includes a cylindrical sealing portion and a conical sealing portion, the cylindrical sealing portion contacts the bottom of the second mounting groove along the axial direction of the second mounting groove at one end close to the accommodating cavity, and the conical sealing portion cooperates with the conical surface of the second locking assembly.

[0013] Optionally, the second locking assembly includes a second clamping component, which includes a conical surface fitting portion, a first sliding fitting portion and an abutment fitting portion, and the conical surface fitting portion is used to cooperate with the conical sealing portion, and along the axial direction of the shell, the first gap is formed between the conical sealing portion and the conical surface fitting portion.

[0014] Optionally, the second locking assembly also includes a second locking component, which includes a second sliding fitting portion, a locking connection portion and a limiting fitting portion, the second sliding fitting portion is used to cooperate with the first sliding fitting portion, the locking connection portion is threadedly engaged with the side wall of the second mounting groove, and the limiting fitting portion is used to cooperate with the abutment fitting portion.

[0015] Optionally, the second locking component further includes a second limiting portion, the diameter of the second limiting portion is larger than the diameter of the second mounting groove, and the second limiting portion is used for abutting against the shell for limiting.

[0016] Optionally, a through hole is formed at the bottom of the first mounting groove and the second mounting groove along the axial direction of the shell, and the through hole is used to pass a cable.

[0017] Optionally, the first sealing component and the second sealing component are both rubber sealing components.

[0018] As described above, the utility model has the following beneficial effects: the cable passes through the first installation groove and the second installation groove and penetrates into the accommodating cavity to be connected with the electronic component, the first sealing structure and the second sealing structure are sleeved on the cable, and the first sealing structure is installed in the first installation groove and the second sealing structure is installed in the second installation groove, when the first locking component is in a locking fit with the side wall of the accommodating cavity, the first locking component squeezes the first sealing component, and the cable is locked in the first installation groove through the deformation of the first sealing component, and when the second locking component is in a locking fit with the second installation groove, the second locking component squeezes the second sealing component, because the conical surface between the second sealing component and the second locking component is matched, and the second sealing component and the second locking component have a first gap along the axial direction of the second installation groove, the second sealing part The component is deformed to fill the first gap, so that the second sealing component can firmly lock the cable without causing extrusion and deformation of the cable. The sealing effect can be achieved when the cable is completely locked, and the cable double sealing structure of the immersive liquid level gauge proposed in the present application, under long-term high and low temperature alternating working conditions, even if the second sealing component is deformed, the deformation of the second sealing component will extend toward the first gap to fill the first gap, and will not cause extrusion and deformation of the cable, thereby effectively avoiding the failure of the seal between the first sealing structure and the cable; when the liquid level gauge is vibrated or impacted, causing the second locking assembly to loosen, the second sealing structure fails, but because the double sealing structure of the present application also includes the existence of the first sealing structure, it can still meet the waterproof effect of the cable and maintain good sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The cross-sectional structure diagram of the double sealing of the cable of the submersible liquid level meter shown in the embodiment of the present application is shown;

[0020] Figure 2 Display as Figure 1 A schematic diagram of the cross-sectional structure of the middle shell;

[0021] Figure 3 Display as Figure 1 A schematic cross-sectional structure diagram of the first pressing component;

[0022] Figure 4 Display as Figure 1 A schematic cross-sectional structure diagram of the second sealing component;

[0023] Figure 5 Display as Figure 1A schematic cross-sectional structure diagram of the second pressing component;

[0024] Figure 6 Display as Figure 1 Schematic diagram of the cross-sectional structure of the second locking component.

[0025] Description of Reference Numerals

[0026] Shell 1, accommodating cavity 101, first mounting groove 102, second mounting groove 103, first sealing component 2, first locking assembly 3, first locking component 301, first pressing component 302, first limiting portion 302a, pressing portion 302b, second sealing component 4, cylindrical sealing portion 401, conical sealing portion 402, second locking assembly 5, second pressing component 501, conical surface fitting portion 501a, first sliding fitting portion 501b, abutting fitting portion 501c, second locking component 502, second sliding fitting portion 502a, locking connection portion 502b, limiting fitting portion 502c, second limiting portion 502d, first gap 6, second gap 7, through hole 8, cable 9. DETAILED DESCRIPTION

[0027] The following is an explanation of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0028] See also Figures 1 to 6 . It should be noted that the illustrations provided in this embodiment only illustrate the basic concept of the utility model in a schematic manner, so the diagram only shows the components related to the utility model rather than being drawn according to the number, shape and size of the components during actual implementation. During actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated. The structure, proportion, size, etc. illustrated in the drawings attached to this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the restrictive conditions for the implementation of the utility model, so they have no technical substantive significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in the utility model without affecting the effect and purpose that can be achieved by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present utility model. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of the present utility model without substantially changing the technical content.

[0029] Before describing the embodiments of the utility model in detail, the application environment of the utility model is described first. The technology of the utility model is mainly applied to the field of sealing technology of immersion level gauges. The utility model is used to solve the problem that the existing immersion level gauges are prone to cable deformation and loosening of the compression bolts of the sealing material under harsh working conditions such as high and low temperature alternation, vibration, and impact, resulting in the failure of the waterproofing of the level gauge.

[0030] Please combine Figures 1 to 6 As shown, the utility model provides a cable double sealing structure for a submersible liquid level meter.

[0031] In an exemplary embodiment of the present application, the double sealing structure of the cable 9 of the immersion level gauge includes: a housing 1, the housing 1 has a receiving cavity 101, a first mounting groove 102 and a second mounting groove 103 in sequence along the axial direction, the receiving cavity 101, the first mounting groove 102 and the second mounting groove 103 are connected, the receiving cavity 101 is used to receive electronic components, and the cable 9 passes through the first mounting groove 102 and the second mounting groove 103 to connect with the electronic components in the receiving cavity 101; a first sealing structure, which is sleeved on the cable 9, and the first sealing structure includes a first sealing component 2 and a first locking assembly 3, and the first sealing component 2 It is in contact with the bottom of the first mounting groove 102, the first locking component 3 is matched with the first sealing component 2 in a plane, and the first locking component 3 is locked and connected to the inner wall of the accommodating cavity 101; the second sealing structure is sleeved on the cable 9, the second sealing structure includes a second sealing component 4 and a second locking component 5, the second sealing component 4 is in contact with the bottom of the second mounting groove 103, the second locking component 5 is matched with the conical surface of the second sealing component 4, and the second sealing component 4 and the second locking component 5 have a first gap 6 along the axial direction of the second mounting groove 103, and the second locking component 5 is locked and connected to the side wall of the second mounting groove 103.

[0032] In this embodiment, the cable 9 passes through the first installation groove 102 and the second installation groove 103 and penetrates into the accommodating cavity 101 to be connected with the electronic component. The first sealing structure and the second sealing structure are sleeved on the cable 9, and the first sealing structure is installed in the first installation groove 102 and the second sealing structure is installed in the second installation groove 103. When the first locking component 3 is locked with the side wall of the accommodating cavity 101, the first locking component 3 squeezes the first sealing component 2, and the first sealing component 2 is deformed to lock the cable 9 in the first installation groove 102. When the second locking component 5 is locked with the second installation groove 103, the second locking component 5 squeezes the second sealing component 4. Due to the conical surface fit between the second sealing component 4 and the second locking component 5, and the second sealing component 4 and the second locking component 5 have a first gap along the axial direction of the second installation groove 103. 6. The second sealing component 4 is deformed to fill the first gap 6, so that the second sealing component 4 can firmly lock the cable 9 without causing squeezing and deformation to the cable 9. The sealing effect can be achieved when the cable 9 is completely locked. In addition, the double sealing structure of the cable 9 of the immersive liquid level gauge proposed in the present application is under long-term high and low temperature alternating working conditions. Even if the second sealing component 4 is deformed, the deformation of the second sealing component 4 will extend toward the first gap 6 to fill the first gap 6, and will not cause squeezing and deformation of the cable 9, thereby effectively avoiding the failure of the seal between the first sealing structure and the cable 9; when the liquid level gauge is vibrated or impacted, causing the second locking component 5 to loosen, the second sealing structure fails, but because the double sealing structure of the present application also includes the existence of the first sealing structure, it can still meet the waterproof effect of the cable 9 and maintain good sealing performance.

[0033] In an exemplary embodiment of the present application, the first locking assembly 3 includes a first locking component 301 and a first pressing component 302. The first locking component 301 is threadedly engaged with the inner wall of the accommodating cavity 101, the first locking component 301 abuts against the first pressing component 302, the first pressing component 302 abuts against the first sealing component 2, and the first pressing component 302 is slidably engaged with the side wall of the first mounting groove 102.

[0034] In this embodiment, the opening of the first installation groove 102 faces the accommodating chamber 101, and the first sealing component 2 is located in the first installation groove 102. Since the first locking component 301 cooperates with the internal thread of the accommodating chamber 101, and the first locking component 301 abuts against the first clamping component 302, and the first clamping component 302 abuts against the first sealing component 2, therefore, in the process of locking by the first locking component 301 and the side wall thread of the accommodating chamber 101, the first locking component 301 pushes the first clamping component 302 to move along the axial direction of the shell 1, the first clamping component 302 slides with the side wall of the first installation groove 102, and the first clamping component 302 squeezes the first sealing component 2, so that the first sealing component 2 is compressed along the axial direction of the shell 1, thereby locking and fixing the cable 9 in the first installation groove 102.

[0035] In an exemplary embodiment of the present application, the first clamping component 302 includes a first limiting portion 302a and a clamping portion 302b, the diameter of the clamping portion 302b is smaller than the diameter of the first installation groove 102, and the diameter of the first limiting portion 302a is larger than the diameter of the first installation groove 102.

[0036] In this embodiment, the diameter of the clamping portion 302b is designed to be smaller than the diameter of the first mounting groove 102, so that the clamping portion 302b can squeeze the first sealing component 2 arranged in the first mounting groove 102, thereby compressing the first sealing component 2 along the axial direction of the shell 1, and the diameter of the first limiting portion 302a is set larger than the first mounting groove 102, so that the first limiting portion 302a cannot enter the first mounting groove 102, thereby limiting the axial movement stroke of the clamping portion 302b, avoiding squeezing the first sealing component 2 to deform too much, thereby squeezing the cable 9, and causing the risk of deformation of the cable 9.

[0037] In an exemplary embodiment of the present application, the second sealing component 4 is clearance-matched with the second mounting groove 103 , and a second gap 7 is provided between the second sealing component 4 and the second mounting groove 103 .

[0038] In this embodiment, the second gap 7 is formed by the clearance fit between the second sealing component 4 and the second mounting groove 103. When the second locking assembly 5 applies pressure to the second sealing component 4, the second sealing component 4 can deform toward the first gap 6 and the second gap 7 at the same time. The second sealing structure can effectively avoid squeezing and deformation of the cable 9 while locking the cable 9.

[0039] In an exemplary embodiment of the present application, the second sealing component 4 includes a cylindrical sealing portion 401 and a conical sealing portion 402, the cylindrical sealing portion 401 contacts the bottom of the second mounting groove 103 along the axial direction of the second mounting groove 103 at one end close to the accommodating cavity 101, and the conical sealing portion 402 cooperates with the conical surface of the second locking assembly 5.

[0040] In this embodiment, the conical sealing portion 402 is deformed and extended toward the first gap 6 when squeezed by the second locking assembly 5. When the cylindrical sealing portion 401 is squeezed by the second locking assembly 5, one end of the cylindrical sealing portion 401 contacts the bottom of the second mounting groove 103, so the cylindrical sealing portion 401 is deformed and extended along the radial direction of the second mounting groove 103 to fill the second gap 7.

[0041] In an exemplary embodiment of the present application, the second locking assembly 5 includes a second clamping component 501, and the second clamping component 501 includes a conical surface fitting portion 501a, a first sliding fitting portion 501b and an abutment fitting portion 501c. The conical surface fitting portion 501a is used to cooperate with the conical sealing portion 402, and along the axial direction of the shell 1, a first gap 6 is formed between the conical sealing portion 402 and the conical surface fitting portion 501a.

[0042] In this embodiment, the second clamping component 501 is a tapered sleeve, and the tapered surface fitting portion 501a is sleeved on the tapered sealing portion 402. Along the axial direction of the housing 1, a first gap 6 is formed between the tapered sealing portion 402 and the tapered surface fitting portion 501a.

[0043] In an exemplary embodiment of the present application, the second locking assembly 5 also includes a second locking component 502, and the second locking component 502 includes a second sliding fitting portion 502a, a locking connection portion 502b and a limiting fitting portion 502c, the second sliding fitting portion 502a is used to cooperate with the first sliding fitting portion 501b, the locking connection portion 502b is threadedly engaged with the side wall of the second installation groove 103, and the limiting fitting portion 502c is used to cooperate with the abutting fitting portion 501c.

[0044] In this embodiment, during the locking process of the second locking component 502 and the second mounting groove 103, the first sliding fitting portion 501b slides with the second sliding fitting portion 502a, the abutting fitting portion 501c abuts with the limiting fitting portion 502c, and the limiting fitting portion 502c pushes the second clamping component 501 to move axially along the second mounting groove 103, thereby squeezing the second sealing component 4, causing the second sealing component 4 to deform and locking the cable 9 at the same time.

[0045] In an exemplary embodiment of the present application, the second locking component 502 further includes a second limiting portion 502d, the diameter of the second limiting portion 502d is greater than the diameter of the second installation groove 103, and the second limiting portion 502d is used to abut against the housing 1 for limiting.

[0046] In this embodiment, the second limiting portion 502d is used to limit the axial position of the second locking member 502 along the housing 1 , and the second limiting portion 502d is used to abut against the housing 1 to limit the axial movement of the second locking member 502 along the second installation groove 103 .

[0047] In an exemplary embodiment of the present application, a through hole 8 is formed through the bottom of the first installation groove 102 and the second installation groove 103 along the axial direction of the housing 1 , and the through hole 8 is used to pass the cable 9 .

[0048] In this embodiment, the first installation groove 102 and the second installation groove 103 share a common wall at the bottom, and the through hole 8 penetrates the first installation groove 102 and the second installation groove 103 at the same time.

[0049] In an exemplary embodiment of the present application, the first sealing component 2 and the second sealing component 4 are both rubber sealing components.

[0050] In this embodiment, the rubber sealing component has good elasticity and can be deformed when the first locking component 3 squeezes the first sealing component 2 and the second locking component 5 squeezes the second sealing component 4. The material is relatively soft and can avoid squeezing the cable 9 and avoid the risk of squeezing and deforming the cable 9.

[0051] Working principle: the cable 9 passes through the first installation groove 102 and the second installation groove 103 and enters the accommodating cavity 101 to be connected with the electronic component. The first sealing structure and the second sealing structure are sleeved on the cable 9, and the first sealing structure is installed in the first installation groove 102 and the second sealing structure is installed in the second installation groove 103. When the first locking component 3 is locked with the side wall of the accommodating cavity 101, the first locking component 3 squeezes the first sealing component 2, and the first sealing component 2 is deformed to lock the cable 9 in the first installation groove 102. When the second locking component 5 is locked with the second installation groove 103, the second locking component 5 squeezes the second sealing component 4. Due to the conical surface fit between the second sealing component 4 and the second locking component 5, and the second sealing component 4 and the second locking component 5 have a first gap 6 along the axial direction of the second installation groove 103. , the second sealing component 4 is deformed to fill the first gap 6, so that the second sealing component 4 can firmly lock the cable 9 without causing extrusion deformation to the cable 9. The sealing effect can be achieved when the cable 9 is completely locked, and the double sealing structure of the cable 9 of the immersive liquid level gauge proposed in the present application is under long-term high and low temperature alternating working conditions. Even if the second sealing component 4 is deformed, the deformation of the second sealing component 4 will extend toward the first gap 6 to fill the first gap 6, and will not cause extrusion deformation of the cable 9, thereby effectively avoiding the failure of the seal between the first sealing structure and the cable 9; when the liquid level gauge is vibrated or impacted, causing the second locking assembly 5 to loosen, the second sealing structure fails, but because the double sealing structure of the present application also includes the existence of the first sealing structure, it can still meet the waterproof effect of the cable 9 and maintain good sealing performance.

[0052] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A cable double sealing structure for a submersible liquid level gauge, characterized in that: include: A housing, wherein the housing has an accommodating cavity, a first mounting groove, and a second mounting groove in sequence along the axial direction, the accommodating cavity, the first mounting groove, and the second mounting groove are connected, the accommodating cavity is used to accommodate electronic components, and the cable passes through the first mounting groove and the second mounting groove to be connected to the electronic components in the accommodating cavity; A first sealing structure, sleeved on the cable, comprising a first sealing component and a first locking assembly, wherein the first sealing component contacts the bottom of the first mounting groove, the first locking assembly cooperates with the first sealing component in a plane, and the first locking assembly is locked and connected to the inner wall of the accommodating cavity; A second sealing structure is sleeved on the cable, and the second sealing structure includes a second sealing component and a second locking assembly. The second sealing component contacts the bottom of the second mounting groove, the second locking assembly cooperates with the conical surface of the second sealing component, and the second sealing component and the second locking assembly have a first gap along the axial direction of the second mounting groove, and the second locking assembly is locked and connected to the side wall of the second mounting groove.

2. The cable double sealing structure of the submersible liquid level meter according to claim 1 is characterized in that: The first locking assembly includes a first locking component and a first pressing component, the first locking component is threadedly engaged with the inner wall of the accommodating cavity, the first locking component abuts against the first pressing component, the first pressing component abuts against the first sealing component, and the first pressing component is slidably engaged with the side wall of the first mounting groove.

3. The cable double sealing structure of the submersible liquid level meter according to claim 2 is characterized in that: The first pressing component includes a first limiting portion and a pressing portion, the diameter of the pressing portion is smaller than the diameter of the first mounting groove, and the diameter of the first limiting portion is larger than the diameter of the first mounting groove.

4. The cable double sealing structure of the submersible liquid level meter according to claim 1 is characterized in that: The second sealing component is loosely matched with the second mounting groove, and a second gap is formed between the second sealing component and the second mounting groove.

5. The cable double sealing structure of the submersible liquid level meter according to claim 4 is characterized in that: The second sealing component includes a cylindrical sealing portion and a conical sealing portion. The cylindrical sealing portion contacts the bottom of the second mounting groove at one end close to the accommodating cavity along the axial direction of the second mounting groove, and the conical sealing portion cooperates with the conical surface of the second locking assembly.

6. The cable double sealing structure of the submersible liquid level meter according to claim 5 is characterized in that: The second locking assembly includes a second clamping component, which includes a conical surface fitting portion, a first sliding fitting portion and an abutting fitting portion. The conical surface fitting portion is used to cooperate with the conical sealing portion, and the first gap is formed between the conical sealing portion and the conical surface fitting portion along the axial direction of the shell.

7. The cable double sealing structure of the submersible liquid level meter according to claim 6 is characterized in that: The second locking assembly also includes a second locking component, which includes a second sliding fitting portion, a locking connection portion and a limiting fitting portion. The second sliding fitting portion is used to cooperate with the first sliding fitting portion, the locking connection portion is threadedly engaged with the side wall of the second mounting groove, and the limiting fitting portion is used to cooperate with the abutting fitting portion.

8. The cable double sealing structure of the submersible liquid level meter according to claim 7 is characterized in that: The second locking component further includes a second limiting portion, the diameter of the second limiting portion is larger than the diameter of the second mounting groove, and the second limiting portion is used for abutting against the housing for limiting.

9. The cable double sealing structure of the submersible liquid level meter according to claim 1 is characterized in that: A through hole is formed at the bottom of the first installation groove and the second installation groove along the axial direction of the housing, and the through hole is used for passing a cable.

10. The cable double sealing structure of the submersible liquid level meter according to claim 9 is characterized in that: The first sealing component and the second sealing component are both rubber sealing components.

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