CN214309276U - Waterproof high-precision pressure transmitter - Google Patents

Abstract

A waterproof high-precision pressure transmitter comprises a pressure transmitter main body, a front cover, a rear cover and waterproof sealing structures, wherein the two groups of waterproof sealing structures are respectively arranged between the pressure transmitter main body and the front cover and between the pressure transmitter main body and the rear cover; the waterproof sealing structure comprises a circular ring, a compression structure, a sealing gasket and a vessel head bolt. The waterproof sealing structure is arranged on the connecting surface of the pressure transmitter main body and the front cover and the connecting surface of the pressure transmitter main body and the rear cover, so that a good waterproof effect is achieved, and the precision of the pressure transmitter is greatly improved. Wherein the sealing gasket in the waterproof sealing structure is tightly attached to the front cover or the rear cover through the pressing structure, so that the waterproof capacity is greatly improved, and the pressing structures are uniformly arranged, so that the uniformity of the overall sealing performance is ensured.

Description

Waterproof high-precision pressure transmitter

Technical Field

The utility model relates to a pressure transmitter field especially relates to a waterproof nature high accuracy pressure transmitter.

Background

A pressure transmitter is a device that converts pressure into a pneumatic signal or an electric signal for control and remote transmission. It can convert the physical pressure parameters sensed by the load cell sensor into standard electric signals for the secondary instruments such as indicating alarm, recorder and regulator to measure, indicate and regulate the process.

The current pressure transmitter has great defects in the using process: the circuit board and the sensor in the pressure transmitter are arranged in a main body shell of the pressure transmitter, and then the two ends of the circuit board and the sensor are connected through threads, and a front cover provided with a display and a rear cover convenient to maintain are installed. However, in some working environments with humid environments, water molecules easily enter the pressure transmitter along the gaps between the front cover, the rear cover and the main body shell, so that a circuit board, a sensor and the like in the shell are damaged, the detection precision of the pressure transmitter is affected, and the service life of the pressure transmitter is greatly shortened.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at providing a waterproof nature high accuracy pressure transmitter solves and sees the problem that pressure transmitter exists when using.

The technical scheme is as follows: the utility model provides a waterproof high-precision pressure transmitter, which comprises a pressure transmitter main body, a front cover, a rear cover and waterproof sealing structures, wherein the number of the waterproof sealing structures is two, and the two groups of the waterproof sealing structures are respectively arranged between the pressure transmitter main body and the front cover and between the pressure transmitter main body and the rear cover; wherein, waterproof sealing structure includes ring, compact structure, sealed pad, ware first bolt, compact structure is total six groups to the ring axle center is the circumference array setting in ring one side and through ware first bolt fastening as the center, sealed pad sets up the opposite side of keeping away from compact structure on the ring. The waterproof sealing structure is arranged on the connecting surface of the pressure transmitter main body and the front cover and the connecting surface of the pressure transmitter main body and the rear cover, so that a good waterproof effect is achieved, and the precision of the pressure transmitter is greatly improved. Wherein the sealing gasket in the waterproof sealing structure is tightly attached to the front cover or the rear cover through the pressing structure, so that the waterproof capacity is greatly improved, and the pressing structures are uniformly arranged, so that the uniformity of the overall sealing performance is ensured.

Furthermore, a groove is arranged on the circular ring. The groove is used for arranging a sealing gasket.

Furthermore, a dish head hole is also formed in the circular ring. The dish head bolt is connected with the compressing structure through the dish head hole, so that the position precision of the dish head bolt is greatly improved, the position precision of the front cover and the rear cover during installation is ensured, and the sealing effect is improved.

Furthermore, compact structure includes connecting rod, guide bar, spring, guide bar one end sets up in the connecting rod, the spring sets up on the connecting rod. The one end that the guide bar was kept away from to the connecting rod is fixed in the pressure transmitter main part, and after protecgulum or hou gai were fixed in the pressure transmitter main part, the spring atress took place to deform, and the sealed pad that the guide bar drive set up on the ring is done along the connecting rod and is removed to play the automatic effect that compresses tightly.

Furthermore, the connecting rod comprises a threaded section and a polished rod, and the threaded section and the polished rod are connected in sequence. The connecting rod is fixed on the pressure transmitter main body through the thread section, and the polished rod plays a limiting role in the position of the connecting rod and is used for positioning the spring.

Furthermore, a first hole and a second hole are formed in the connecting rod, and the first hole and the second hole are sequentially connected; the first hole is also provided with a positioning groove. The guide rod is position-limited by the positioning slot and is moved in position in the first hole under the action of the spring.

Furthermore, the guide rod comprises a guide section and a connecting section, and the guide section and the connecting section are sequentially connected; a positioning block is arranged on the guide section; one end of the connecting section, which is far away from the guide section, is provided with a first threaded hole. The positioning block and the positioning groove are matched for use, so that the position precision in the pressing process is improved, and the sealing effect is improved; the dish head bolt is connected with the guide rod through a threaded hole.

Furthermore, the combination surface of the pressure transmitter main body, the front cover and the rear cover is provided with mounting grooves; the mounting groove is internally provided with six groups of second threaded holes which are circumferentially arranged in the mounting groove by taking the center of the mounting groove as the center. The mounting groove is used for assembling the waterproof sealing structure, and the threaded section of the connecting rod is matched with the second threaded hole for use, so that the waterproof sealing structure is fixed.

Above-mentioned technical scheme can find out, the utility model discloses following beneficial effect has: 1) the waterproof sealing structure is arranged on the connecting surface of the pressure transmitter main body and the front cover and the connecting surface of the pressure transmitter main body and the rear cover, so that a better waterproof effect is achieved, the precision of the pressure transmitter is greatly improved, and the damage to a circuit board and the like caused by the fact that water enters the pressure transmitter is avoided; 2) the multiple groups of compression structures are arranged, and the sealing gasket is always tightly attached to the joint surface of the front cover or the rear cover through the self deformation of the spring, so that the stability of the sealing effect is ensured in the use process of the pressure transmitter; 3) simple structure, convenient assembly and wide applicability.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a cross-sectional view of a water-tight seal;

FIG. 3 is a perspective view of the ring;

FIG. 4 is a perspective view of the connecting rod;

FIG. 5 is a cross-sectional view of the connecting rod;

FIG. 6 is a perspective view of the guide bar;

FIG. 7 is a front view of the pressure transmitter body.

In the figure: the pressure transmitter comprises a pressure transmitter body 1, a mounting groove 11, a second threaded hole 12, a front cover 2, a rear cover 3, a waterproof sealing structure 4, a ring 41, a groove 411, a pan head hole 412, a pressing structure 42, a connecting rod 421, a threaded section 4211, a polish rod 4212, a first hole 4213, a positioning groove 42131, a second hole 4214, a guide rod 422, a guide section 4221, a positioning block 42211, a connecting section 4222, a first threaded hole 42221, a spring 423, a sealing gasket 43 and a pan head bolt 44.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Example one

Fig. 1 shows a front view of the present invention, which includes a pressure transmitter main body 1, a front cover 2, a rear cover 3, and a waterproof sealing structure 4, wherein two groups of waterproof sealing structures 4 are provided between the pressure transmitter main body 1 and the front cover 2, and between the pressure transmitter main body 1 and the rear cover 3, respectively; fig. 2 shows a cross-sectional view of the waterproof sealing structure 4, which includes a ring 41, a pressing structure 42, a sealing gasket 43, and a stud 44, where the pressing structure 42 includes six groups, and is disposed on one side of the ring 41 and fixed by the stud 44 in a circumferential array with an axis of the ring 41 as a center, and the sealing gasket 43 is disposed on the other side of the ring 41 away from the pressing structure 42.

Fig. 3 shows a perspective view of the ring 41, on which a groove 411 is provided.

The ring 41 is further provided with a dish hole 412.

The pressing structure 42 comprises a connecting rod 421, a guide rod 422 and a spring 423, wherein one end of the guide rod 422 is arranged in the connecting rod 421, and the spring 423 is arranged on the connecting rod 421.

Fig. 4 and 5 are a perspective view and a cross-sectional view of the connecting rod 421, respectively, and include a threaded section 4211 and a polished rod 4212, and the threaded section 4211 and the polished rod 4212 are connected in sequence.

A first hole 4213 and a second hole 4214 are formed in the connecting rod 421, and the first hole 4213 and the second hole 4214 are connected in sequence; the first hole 4213 is further provided with a positioning groove 42131.

Fig. 6 is a perspective view of the guide rod 422, which includes a guide segment 4221 and a connection segment 4222, wherein the guide segment 4221 and the connection segment 4222 are connected in sequence; a positioning block 42211 is arranged on the guide section 4221; the end of the connecting segment 4222 away from the guide segment 4221 is provided with a first threaded hole 42221.

As shown in fig. 7, which is a front view of the pressure transmitter body 1, the joint surface of the pressure transmitter body 1, the front cover 2 and the rear cover 3 is provided with an installation groove 11; the mounting groove 11 is internally provided with six groups of second threaded holes 12, and the second threaded holes 12 are arranged in the mounting groove 11 in a circumferential array by taking the center of the mounting groove 11 as the center.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principles of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims (8)

1. The utility model provides a waterproof nature high accuracy pressure transmitter which characterized in that: the waterproof sealing structure comprises a pressure transmitter main body (1), a front cover (2), a rear cover (3) and two waterproof sealing structures (4), wherein the two waterproof sealing structures (4) are respectively arranged between the pressure transmitter main body (1) and the front cover (2) and between the pressure transmitter main body (1) and the rear cover (3); wherein, waterproof sealing structure (4) include ring (41), compact structure (42), sealed pad (43), ware stud (44), compact structure (42) are total six groups to ring (41) axle center is the circumference array and sets up in ring (41) one side and fixed through ware stud (44) as the center, sealed pad (43) set up the opposite side of keeping away from compact structure (42) on ring (41).

2. The waterproof high-precision pressure transmitter according to claim 1, characterized in that: a groove (411) is arranged on the circular ring (41).

3. The waterproof high-precision pressure transmitter of claim 2, characterized in that: the circular ring (41) is also provided with a dish head hole (412).

4. The waterproof high-precision pressure transmitter according to claim 1, characterized in that: the pressing structure (42) comprises a connecting rod (421), a guide rod (422) and a spring (423), one end of the guide rod (422) is arranged in the connecting rod (421), and the spring (423) is arranged on the connecting rod (421).

5. The waterproof high-precision pressure transmitter according to claim 4, characterized in that: the connecting rod (421) comprises a threaded section (4211) and a polished rod (4212), and the threaded section (4211) and the polished rod (4212) are sequentially connected.

6. The waterproof high-precision pressure transmitter according to claim 5, characterized in that: a first hole (4213) and a second hole (4214) are formed in the connecting rod (421), and the first hole (4213) and the second hole (4214) are connected in sequence; the first hole (4213) is also provided with a positioning groove (42131).

7. The waterproof high-precision pressure transmitter according to claim 4, characterized in that: the guide rod (422) comprises a guide section (4221) and a connecting section (4222), and the guide section (4221) and the connecting section (4222) are sequentially connected; a positioning block (42211) is arranged on the guide section (4221); one end of the connecting section (4222) far away from the guide section (4221) is provided with a first threaded hole (42221).

8. The waterproof high-precision pressure transmitter according to claim 1, characterized in that: the joint surface of the pressure transmitter main body (1) and the front cover (2) and the rear cover (3) is provided with a mounting groove (11); be equipped with second screw hole (12) in mounting groove (11), six groups in total are organized in second screw hole (12), use mounting groove (11) center to be the setting of circumference array in mounting groove (11) as the center.

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