CN210202273U - Sealing structure of wireless data terminal - Google Patents

Abstract

The utility model provides a wireless data terminal's seal structure belongs to mechanical technical field. It has solved the current problem of using for a long time sealed easy inefficacy. This wireless data terminal includes casing and lid, this seal structure includes the sealing washer, it keeps off along the convex annular that has to follow circumference on the periphery wall of lid, the annular keeps off the lower terminal surface on edge and has seted up the ring channel, the sealing washer inlays to be established in the ring channel, convex lug has on the inner wall of casing, it sets up flutedly still to correspond on the lower terminal surface of lid, the lid is fixed back with the casing, the lower extreme of lid stretches into in the casing, the lug can insert in the recess that corresponds, the annular keeps off along compressing tightly to support at the opening border and the sealing washer of casing and support at the opening border of casing. Through the design of lug and recess, can further realize that circumference between upper cover and the casing is spacing, make it can not take place the rotation each other to avoid the wearing and tearing of sealing washer, be difficult for becoming invalid, reduced the fault rate, thereby reduced the maintenance cost.

Description

Sealing structure of wireless data terminal

Technical Field

The utility model belongs to the technical field of machinery, a wireless data terminal's seal structure is related to.

Background

The wireless data terminal is generally used in the field, is powered by a battery, is mainly used for sampling data parameters of water supply equipment, such as the number of each water meter, the degree of each water meter, instantaneous flow, pressure, water level and the like, and uploads the acquired data to a data service platform, so that the monitoring of each data is realized.

The existing wireless data terminal generally comprises a shell, a cover body, a power supply and a chip circuit board, wherein the chip circuit board is used for data acquisition and transmitting sampled data to a data service platform in a wireless mode, and the shell and the cover body are fixedly connected to form a closed cavity. The wireless data terminal is generally used in the field, the working environment of the wireless data terminal is generally severe and is often dirty and wet, and moisture prevention and dirt prevention are particularly important for ensuring the normal operation of the wireless data terminal. The casing and the lid of current wireless data terminal adopt threaded connection mostly, and sealed between them all is at the threaded connection department winding round sealing strip of casing with the lid, and it is inefficacy easily after having used for a long time, and sealed effect is poor.

Disclosure of Invention

The utility model aims at having the above-mentioned problem to current technique, provided a wireless data terminal's seal structure, the utility model aims to solve the technical problem that: how to ensure that the long-term seal does not fail.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a wireless data terminal's seal structure, wireless data terminal include one end open-ended casing and fix the lid at the casing open end, its characterized in that, this seal structure includes the sealing washer, it keeps off the edge to have convex annular along circumference on the periphery wall of lid, the annular keeps off the lower terminal surface on edge and has seted up the ring channel, the sealing washer inlays to be established in the ring channel, convex lug has on the inner wall of casing, it sets up flutedly still to correspond on the lower terminal surface of lid, the lid is fixed back with the casing, the lower extreme of lid stretches into in the casing, the lug can insert in the recess that corresponds, the annular is kept off along compressing tightly to lean on just the opening border of casing the sealing washer supports to press at the opening border of casing.

In this seal structure, the lower extreme of lid stretches into in the casing, and the design that the cooperation annular kept off the edge, the annular is kept off along the opening border that leans on at the casing, then keep off along setting up the ring channel again in the annular, set up the sealing washer in the ring channel, the casing is fixed back with the lid, the annular is kept off along compressing tightly the opening border that leans on at the casing, make the sealing washer take place elastic deformation and tightly support at the opening border of casing, sealing performance is better, the effect of realization dampproofing and antifouling dirt that can be fine, thereby the fault rate has been reduced. Meanwhile, through the design of the convex block and the groove, the circumferential spacing between the upper cover and the shell can be further realized, so that the mutual rotation can not occur, the abrasion of the sealing ring is avoided, the failure is not easy to occur, the better sealing effect can be further realized for a long time, the failure rate is reduced, and the maintenance cost is reduced.

In the sealing structure of the wireless data terminal, the cover body comprises an upper cover and a pressing ring, the annular blocking edge is arranged on the peripheral wall of the upper cover, the upper end of the pressing ring is provided with an annular blocking shoulder protruding inwards, the pressing ring is sleeved on the upper cover, the annular blocking shoulder is abutted against the annular blocking edge, the lower end of the upper cover extends into the shell, and the pressing ring is in threaded connection with the shell, and the annular blocking edge is tightly abutted against the opening edge of the shell. Through the effect that the annular keeps off the shoulder on the clamping ring, can keep off the edge with annular and compress tightly at the opening border of casing to make the sealing washer take place elastic deformation and tightly support and press at the opening border of casing, sealing performance is better. Meanwhile, the compression ring is in threaded connection with the shell, the shell does not rotate in the installation process, abrasion of the sealing ring is further avoided, and the effects of moisture resistance and dirt prevention can be well achieved, so that the failure rate is reduced.

In the sealing structure of the wireless data terminal, the groove comprises a shallow groove section and a deep groove section, a step groove is formed between the shallow groove section and the deep groove section, the pressing ring is in threaded connection with the shell, the annular blocking edge is pressed against the opening edge of the shell, and the convex block can be inserted into the deep groove section. The groove is designed into a stepped groove, the shallow groove section is used for installation transition, the whole groove is larger, installation alignment is more convenient, during installation, the lug is embedded into the groove, the upper cover is rotated to enable the lug to be abutted against the side wall of the deep groove section, the pressing ring is screwed, the upper cover is pressed on the shell, the sealing ring is abutted against the deep groove section to be elastically deformed, the lug is inserted into the deep groove section to achieve positioning, circumferential spacing between the upper cover and the shell is achieved, mutual rotation cannot occur, abrasion of the sealing ring is avoided, the sealing effect is further guaranteed, the failure rate is reduced, and maintenance cost is reduced.

In the sealing structure of the wireless data terminal, the opening edge of the housing is further provided with an annular convex edge which protrudes upwards, and the annular convex edge can be embedded into the annular groove and pressed against the sealing ring. Set up convex annular protruding edge at the opening border of casing to in the annular protruding edge embedding ring channel, changed the clearance route between upper cover and the casing, make it be a form of buckling, reduced the probability that rainwater and dirt got into in the casing, the structural design of sealing washer is deuterogamied simultaneously, thereby can thoroughly completely cut off rainwater and dirt entering, dampproofing and antifouling dirty effect of realization that can be fine, thereby reduced the fault rate.

Compared with the prior art, the sealing structure of the wireless data terminal has the following advantages:

1. in the protruding edge embedding ring channel of annular, changed the clearance route between upper cover and the casing, made it be a form of buckling, reduced the probability in rainwater and the dirt entering casing, the structural design of cooperation sealing washer again simultaneously to can thoroughly completely cut off rainwater and dirt entering, dampproofing and antifouling dirty effect of realization that can be fine, thereby reduced the fault rate.

2. Through the design of lug and recess, can further realize that circumference between upper cover and the casing is spacing, make it can not take place the rotation each other to avoid the wearing and tearing of sealing washer, difficult inefficacy has further guaranteed to realize better sealed effect for a long time, has reduced the fault rate, thereby has reduced the maintenance cost.

Drawings

Fig. 1 is a cross-sectional view of a wireless data terminal having the present seal configuration.

Fig. 2 is an enlarged view at a in fig. 1.

Fig. 3 is a perspective view of the housing.

Fig. 4 is a perspective view of the upper cover.

In the figure, 1, a cover body; 1a, an upper cover; 1a1, annular rim; 1a2, annular groove; 1a3, groove; 1b, pressing a ring; 1b1, annular shoulder; 2. a power source; 3. a chip circuit board; 4. a housing; 4a, an annular convex edge; 5. a bump; 6. and (5) sealing rings.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1-4, the wireless data terminal structure includes a housing 4, a cover 1, a power supply 2 disposed in the housing 41, and a chip circuit board 3 for sampling data and transmitting the sampled data to a data service platform via wireless transmission, and the sealing structure includes a sealing ring 6. In the present embodiment, the housing 4 is cylindrical.

The cover body 1 comprises an upper cover 1a and a pressing ring 1b, a protruding annular blocking edge 1a1 is arranged on the outer peripheral wall of the upper cover 1a along the circumferential direction, an annular groove 1a2 is formed in the lower end face of the annular blocking edge 1a1, and a sealing ring 6 is embedded in the annular groove 1a 2. The upper end of the pressing ring 1b is provided with an annular retaining shoulder 1b1 protruding inwards, the pressing ring 1b is sleeved on the upper cover 1a, and the annular retaining shoulder 1b1 abuts against the annular retaining edge 1a 1. The opening edge of the shell 4 is also provided with an annular convex edge 4a which protrudes upwards, the lower end of the upper cover 1a extends into the shell 4, the press ring 1b is in threaded connection with the shell 4 to press the annular blocking edge 1a1 against the opening edge of the shell 4, and the annular convex edge 4a can be embedded into the annular groove 1a2 to press against the sealing ring 6. The annular convex edge 4a changes the clearance path between the upper cover 1a and the shell 4, so that the annular convex edge is bent, the probability of rainwater and dirt entering the shell 4 is reduced, and meanwhile, the structural design of the sealing ring 6 is matched, so that the rainwater and the dirt can be completely isolated from entering, the damp-proof and dirt-proof effects can be well realized, and the failure rate is reduced.

The inner wall of the shell 4 is provided with a convex bump 5, the lower end face of the upper cover 1a is correspondingly provided with a groove 1a3, the groove 1a3 comprises a shallow groove section and a deep groove section, a step groove is formed between the shallow groove section and the deep groove section, the shallow groove section is used for installation transition, the groove 1a3 is integrally larger, and installation alignment is more convenient, during installation, the bump 5 is embedded into the groove 1a3, then the upper cover 1a is rotated to enable the bump 5 to abut against the side wall of the deep groove section, then the press ring 1b is screwed, the press ring 1b is in threaded connection with the shell 4 to enable the annular baffle edge 1a1 to abut against the opening edge of the shell 4, the seal ring 6 is abutted against and elastically deformed, the bump 5 can be inserted into the deep groove section, the circumferential limit between the upper cover 1a and the shell 4 is realized, so that mutual rotation can not occur, the abrasion of the seal ring 6 is avoided, and the sealing effect is further ensured, the failure rate is reduced, thereby reducing the maintenance cost.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (4)

1. The utility model provides a wireless data terminal's seal structure, wireless data terminal include one end open-ended casing (4) and fix lid (1) at casing (4) open end, its characterized in that, this seal structure includes sealing washer (6), it keeps off along (1a1) to have convex annular along circumference on the periphery wall of lid (1), annular groove (1a2) have been seted up along the lower terminal surface of (1a1) to the annular fender, sealing washer (6) are inlayed and are established in annular groove (1a2), convex lug (5) have on the inner wall of casing (4), still correspond on the lower terminal surface of lid (1) and set up fluted (1a3), lid (1) and casing (4) fixed back, the lower extreme of lid (1) stretches into in casing (4), lug (5) can insert in corresponding recess (1a3), the annular is kept off along (1a1) compresses tightly and is supported and is leaned on at the opening border of casing (4) just sealing washer (6) ) Is pressed against the opening edge of the shell (4).

2. The sealing structure of the wireless data terminal according to claim 1, wherein the cover body (1) comprises an upper cover (1a) and a pressing ring (1b), the annular flange (1a1) is disposed on the outer peripheral wall of the upper cover (1a), the upper end of the pressing ring (1b) is provided with an annular flange (1b1) protruding inwards, the pressing ring (1b) is sleeved on the upper cover (1a), the annular flange (1b1) abuts against the annular flange (1a1), the lower end of the upper cover (1a) extends into the casing (4), and the pressing ring (1b) is in threaded connection with the casing (4) to press the annular flange (1a1) against the opening flange of the casing (4).

3. The sealing structure of wireless data terminal according to claim 2, wherein the groove (1a3) comprises a shallow groove section and a deep groove section, a step groove is formed between the shallow groove section and the deep groove section, the press ring (1b) is in threaded connection with the housing (4) to press the annular flange (1a1) against the opening edge of the housing (4), and the projection (5) can be inserted into the deep groove section.

4. The sealing structure of wireless data terminal according to any one of claims 1-3, wherein the opening edge of the housing (4) further has an annular convex edge (4a) protruding upward, and the annular convex edge (4a) can be inserted into the annular groove (1a2) and press against the sealing ring (6).

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