CN111623850B

CN111623850B - Liquid level transmitter waterproof sealing structure

Info

Publication number: CN111623850B
Application number: CN202010546927.0A
Authority: CN
Inventors: 刘术林; 沈麒麟
Original assignee: Nanjing Wotian Technology Co ltd
Current assignee: Nanjing Wotian Technology Co ltd
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2022-04-26
Anticipated expiration: 2040-06-16
Also published as: CN111623850A

Abstract

The invention relates to the technical field of liquid level transmitters, and discloses a waterproof sealing structure of a liquid level transmitter, which comprises a shell, wherein a first thread and a second thread are respectively arranged on the inner wall of the upper end of the shell, the inner wall of the first thread is in threaded connection with a glue filling compression ring, the inner wall of the second thread is in threaded connection with a compression sleeve, a liquid level cable is inserted into the inner wall of the compression sleeve, a sealing gasket is attached to the lower surface of the compression sleeve, a baffle is attached to the lower surface of the sealing gasket, the lower surface of the baffle is attached to the upper surface of the glue filling compression ring, glue is attached to the inner wall of the glue filling compression ring, the problems that the liquid level cable is fixed to the transmitter and the gap inside the cable cannot be prevented from being waterproof are solved, and the purpose of long-term extrusion deformation of a wire core and an air guide tube is avoided.

Description

Liquid level transmitter waterproof sealing structure

Technical Field

The invention relates to the technical field of liquid level transmitters, in particular to a waterproof sealing structure of a liquid level transmitter.

Background

The mode and the liquid level cable assembly that present changer casing adopted the extrusion seal pad to warp, the benefit of this kind of mode is the simple operation exactly, and simple process, but rely on the sealed deflection of filling up can't solve gapped phenomenon between inside filler of cable and the sinle silk completely, the cable is also can cause the deformation of inside sinle silk of cable and air duct by extrusion deformation for a long time in addition, provides a liquid level transmitter waterproof sealing structure for this reason, in order to solve the above-mentioned problem that proposes.

Disclosure of Invention

The present invention is directed to a waterproof sealing structure of a liquid level transmitter, which solves the above problems of the related art.

In order to achieve the purpose, the invention provides the following technical scheme: a waterproof sealing structure of a liquid level transmitter comprises a shell, wherein a first thread and a second thread are respectively arranged on the inner wall of the upper end of the shell, the inner wall of the first thread is in threaded connection with a glue filling compression ring, the inner wall of the second thread is in threaded connection with a compression sleeve, a liquid level cable is inserted into the inner wall of the compression sleeve, the lower surface of the compression sleeve is attached with a sealing gasket, the lower surface of the sealing gasket is attached with a baffle, the lower surface of the baffle is attached with the upper surface of the glue filling compression ring, and the inner wall of the glue filling compression ring is attached with glue filling; the liquid level cable includes the sheath, the laminating of sheath lateral wall compresses tightly the cover inner wall, the laminating sinle silk of sheath inner wall, what the baffle adopted is the wedge structure, the upper end of baffle struts and inserts position between the inner wall of sheath and the outer wall of sinle silk.

Preferably, the upper end of the inner wall of the shell is provided with a groove, the outer side wall of the pressing sleeve is integrally formed with a limit ring, and the side wall of the limit ring is attached to the inner wall of the groove.

Preferably, the pressure head is advanced in the laminating of casing lower surface, advance pressure head upper surface fixed mounting seal cover, third screw thread is seted up to shells inner wall, third screw thread inner wall spiro union seal cover lateral wall, advance pressure head inner wall fixed mounting core, seal cover inner wall fixed mounting clamping ring, installation clamping ring upper surface fixed mounting keysets, analog circuit board is connected to the keysets electricity.

Preferably, a potentiometer is fixedly installed on the upper surface of the adapter plate, and the upper surface of the potentiometer is fixedly connected with the lower surface of the analog circuit board.

Preferably, the lower end of the inner wall of the pressure inlet head is provided with a fourth thread, the inner wall of the fourth thread is in threaded connection with a protective cap, and the lower surface of the protective cap is provided with an inclined through hole.

Compared with the prior art, the invention has the beneficial effects that: a waterproof sealing structure of a liquid level transmitter is characterized in that a baffle plate with a wedge-shaped structure is adopted to stretch a liquid level cable shielding layer and a wire sheath (sheath), and a sealing gasket is deformed through thread assembly, so that the fixation of a cable and the sealing and the waterproofing between the cable and a shell are completed. Because wedge structure baffle, sealed deformation that fills up will be used in the cable crust, and not the sinle silk, solve the cable inside gapped through the encapsulating at last, realized solving the fixed of liquid level cable and changer assembly, the unable waterproof problem in cable inside clearance, avoid the long-term extrusion deformation's of sinle silk, air duct purpose.

Drawings

FIG. 1 is a schematic view of a half-section structure of the present invention.

Fig. 2 is an enlarged view of the baffle plate and the connection structure thereof according to the present invention.

Fig. 3 is a schematic view of the structure of the baffle plate of the present invention.

In the figure: the cable comprises a shell body 1, a first thread 101, a second thread 102, a groove 103, a third thread 104, a glue pouring press ring 2, a 3 pressing sleeve, a 301 limiting ring, a 4 liquid level cable, a 401 cable sheath, a 402 wire core, a 5 sealing gasket, a 6 baffle, a 7 glue pouring, an 8 pressure inlet head, an 801 sealing sleeve, a 802 fourth thread, a 9 core, a 10 mounting press ring, an 11 adapter plate, a 12 simulation circuit board, a 13 potentiometer, a 14 protective cap and an 1401 inclined through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a waterproof sealing structure of a liquid level transmitter comprises a shell 1, wherein a first thread 101 and a second thread 102 are respectively arranged on the inner wall of the upper end of the shell 1, the inner wall of the first thread 101 is in threaded connection with a glue pouring compression ring 2, the inner wall of the second thread 102 is in threaded connection with a compression sleeve 3, a liquid level cable 4 is inserted into the inner wall of the compression sleeve 3, a sealing gasket 5 is attached to the lower surface of the compression sleeve 3, a baffle 6 is attached to the lower surface of the sealing gasket 5, the lower surface of the baffle 6 is attached to the upper surface of the glue pouring compression ring 2, glue is attached to the inner wall of the glue pouring compression ring 2, the liquid level cable 4 comprises a cable sheath 401, the outer side wall of the cable sheath 401 is attached to the inner wall of the compression sleeve 3, the inner wall of the cable sheath 401 is attached to a cable core 402, the upper end of the baffle 6 is stretched and inserted between the inner wall of the cable sheath 401 and the outer wall of the cable core 402, the baffle adopts a wedge-shaped structure as shown in figure 3, the first thread is positioned at the lower part of an upper port, the second thread is positioned at the upper part of the upper port, the outer side wall of the compression sleeve and the outer side wall of the glue-pouring compression ring are both processed by threads, and the sealing gasket is made of elastic materials in the prior art.

The recess 103 is seted up to casing 1 inner wall upper end, and 3 lateral wall integrated into one piece of pressing sleeve have a spacing ring 301, and spacing ring 301 lateral wall laminating recess 103 inner wall is spacing through the laminating of spacing ring to the recess, makes pressing sleeve and casing form the butt joint and accomplish.

The pressure head 8 is advanced in the laminating of 1 lower surface of casing, advance 8 upper surface fixed mounting seal covers 801 of pressure head, third screw thread 104 is seted up to 1 inner wall of casing, third screw thread 104 inner wall spiro union seal cover 801 lateral wall, advance 8 inner wall fixed mounting cores 9 of pressure head, seal cover 801 inner wall fixed mounting clamping ring 10, surface fixed mounting keysets 11 on the installation clamping ring 10, simulation circuit board 12 is connected to keysets 11 electricity, the keysets passes through the through-hole that the connecting cap upper surface was seted up and is connected with the core electricity, simulation circuit board is connected to the keysets electricity, the sinle silk is connected to the upwards electricity of simulation circuit board, the seal cover lateral wall adopts the screw thread to handle.

The potentiometer 13 is fixedly arranged on the upper surface of the adapter plate 11, the upper surface of the potentiometer 13 is fixedly connected with the lower surface of the simulation circuit board 12, and the adapter plate and the simulation circuit board are connected and assembled through the potentiometer, so that the structure between the adapter plate and the simulation circuit board is more stable.

Advance 8 inner walls lower extremes of pressure head and offer fourth screw thread 802, fourth screw thread 802 inner wall spiro union helmet 14, inclined through-hole 1401 is offered to helmet 14 lower surface, carries out isolated protection to the bottom of device through the helmet, and the threaded treatment is adopted to helmet lateral wall upper end.

The working principle is as follows: when the liquid level cable fixing device is used, the baffle 6 with the wedge-shaped structure is adopted to open the cable sheath 401 of the liquid level cable 4, the sealing gasket 5 is deformed through the thread assembly of the second thread 102, the inner wall of which is in threaded connection with the pressing sleeve 3, and the fixing of the liquid level cable 4 and the sealing and water prevention between the liquid level cable 4 and the shell 1 are completed. Because wedge structure baffle 6, the deformation of sealed 4 will be used in cable sheath 401, and not core 402, solves the inside gapped problem of liquid level cable 4 through encapsulating 7 at last, and the schematic diagram of structure is as shown in fig. 2.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A liquid level transmitter waterproof sealing structure comprises a shell (1), and is characterized in that: a first thread (101) and a second thread (102) are respectively formed in the inner wall of the upper end of the shell (1), the inner wall of the first thread (101) is in threaded connection with the glue filling compression ring (2), the inner wall of the second thread (102) is in threaded connection with the compression sleeve (3), the inner wall of the compression sleeve (3) is connected with the liquid level cable (4) in an inserting mode, the lower surface of the compression sleeve (3) is attached with the sealing gasket (5), the lower surface of the sealing gasket (5) is attached with the baffle (6), the lower surface of the baffle (6) is attached with the upper surface of the glue filling compression ring (2), and the inner wall of the glue filling compression ring (2) is attached with the glue filling (7);

liquid level cable (4) include cable sheath (401), the laminating of cable sheath (401) lateral wall compresses tightly cover (3) inner wall, cable sheath (401) inner wall laminating sinle silk (402), what baffle (6) adopted is the wedge structure, the upper end of baffle (6) struts and inserts position between the outer wall of the inner wall of cable sheath (401) and sinle silk (402).

2. The waterproof and sealing structure of a liquid level transmitter according to claim 1, wherein: the upper end of the inner wall of the shell (1) is provided with a groove (103), the outer side wall of the pressing sleeve (3) is integrally formed with a limiting ring (301), and the side wall of the limiting ring (301) is attached to the inner wall of the groove (103).

3. The waterproof and sealing structure of a liquid level transmitter according to claim 1, wherein: pressure head (8) are advanced in the laminating of casing (1) lower surface, advance fixed surface installation seal cover (801) on pressure head (8), third screw thread (104) are seted up to casing (1) inner wall, third screw thread (104) inner wall spiro union seal cover (801) lateral wall, advance pressure head (8) inner wall fixed assembly core (9), seal cover (801) inner wall fixed mounting clamping ring (10), fixed surface installation keysets (11) are gone up in installation clamping ring (10), analog circuit board (12) are connected to keysets (11) electricity.

4. The waterproof and sealing structure of a liquid level transmitter according to claim 3, wherein: the potentiometer (13) is fixedly installed on the upper surface of the adapter plate (11), and the upper surface of the potentiometer (13) is fixedly connected with the lower surface of the analog circuit board (12).

5. The waterproof and sealing structure of a liquid level transmitter according to claim 3, wherein: fourth screw threads (802) are formed in the lower end of the inner wall of the pressure inlet head (8), a protective cap (14) is in threaded connection with the inner wall of the fourth screw threads (802), and an inclined through hole (1401) is formed in the lower surface of the protective cap (14).