CN221280351U - Reliable fixed seal structure - Google Patents

Abstract

The utility model discloses a reliable fixed sealing structure which comprises a converter rod body, wherein a lock nut is sleeved outside the converter rod body, a sensor rod body is arranged below the converter rod body, a cavity nut is fixedly connected to the outer surface of the sensor rod body, a fixed sleeve is fixedly connected to the outer surface of the sensor rod body, a lower gasket is sleeved outside the converter rod body, an upper gasket is arranged inside the lock nut, the upper surface of the upper gasket is fixedly connected with the inner top wall of the lock nut, a threaded hole is formed in the outer surface of the lock nut, a threaded jackscrew is connected to the inner wall of the threaded hole in a threaded mode, a locking ring is sleeved on the outer surface of the converter rod body, and a limiting ring is fixedly connected to the outer surface of the converter rod body. This fixed seal structure will carry out reliable fixed seal, improves the fastness behind the connection of both, prevents the phenomenon that gas leakage appears, guarantees the accuracy when gas flowmeter measures.

Description

Reliable fixed seal structure

Technical Field

The utility model relates to the field of gas flow meters, in particular to a reliable fixed sealing structure.

Background

The gas flowmeter is mainly used for measuring the flow of medium fluid in industrial pipeline, such as various mediums of gas, liquid and steam, and is characterized by small pressure loss, large measuring range, high accuracy, no influence of parameters such as fluid density, pressure, temperature and viscosity, etc. when measuring the volume flow of working condition, the gas flowmeter has no movable mechanical parts, thus the reliability is high, the maintenance amount is small, the instrument parameters can be stabilized for a long time, the gas flowmeter adopts a piezoelectric stress sensor with high reliability, can work in the working temperature range of-20 ℃ to +250 ℃, has analog standard signals, also has digital pulse signal output, is easy to be matched with digital systems such as computers, etc., and is a comparatively advanced and ideal measuring instrument.

The gas flowmeter is composed of a converter operation part, a sensor rod body and a sensor measuring body, wherein the converter operation part is required to be assembled and connected with the sensor rod body, but the existing converter operation part and the sensor rod body are poor in firmness after being connected, are difficult to reliably fix and seal, are easy to cause gas leakage, influence the accuracy of the gas flowmeter during measurement, and therefore, a reliable fixing and sealing structure is provided to solve the problems.

Disclosure of utility model

The present utility model is directed to a reliable fixing seal structure, which solves the above-mentioned problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

The utility model provides a reliable fixed seal structure, includes the converter body of rod, the outside cover of the converter body of rod is equipped with lock nut, the below of the converter body of rod is equipped with the sensor body of rod, the surface fixedly connected with cavity nut of sensor body of rod, the surface fixedly connected with of sensor body of rod is fixed the cover, the outside cover of the converter body of rod is equipped with down the gasket.

In a further embodiment, an upper gasket is arranged in the lock nut, and the upper surface of the upper gasket is fixedly connected with the inner top wall of the lock nut.

In a further embodiment, a threaded hole is formed in the outer surface of the lock nut, and a threaded jackscrew is connected to the inner wall of the threaded hole in a threaded manner.

In a further embodiment, the outer surface of the converter rod body is sleeved with a locking ring, the outer surface of the converter rod body is fixedly connected with a limiting ring, and the upper surface of the limiting ring is in contact with the bottom surface of the locking ring.

In a further embodiment, the outer surface of the fixing sleeve is provided with connecting threads, and the outer surface of the sensor rod body is fixedly connected with a threaded connecting block.

In a further embodiment, the converter rod body and the sensor rod body are made of the same material, and the inner wall of the lock nut is matched with the outer surface of the connecting thread.

Compared with the prior art, the utility model has the beneficial effects that:

This fixed seal structure, fixed cover and connecting screw thread through the sensor body is equipped with, simultaneously with the cooperation of the outside lock nut of converter body of rod, can make lock nut rotate at connecting screw thread's surface, will make quick connect between converter body of rod and the sensor body of rod, and through last gasket and lower gasket, reach the effect to double seal between converter body of rod and the sensor body of rod, screw hole and the screw thread jackscrew that are equipped with through lock nut, can lock the outside fixed cover of sensor body of rod again, improve the fastness after both are connected, will carry out reliable fixed seal, prevent the phenomenon of gas leakage, the accuracy when guaranteeing the gas flowmeter measurement.

Drawings

Fig. 1 is a schematic perspective view of a front view of a reliable fixed seal structure.

Fig. 2 is a schematic partial perspective view of a front view of a converter rod in a reliable fixed seal configuration.

Fig. 3 is a cross-sectional view of a bottom view of a lock nut in a secure seal configuration.

In the figure: 1. a converter rod body; 2. a sensor lever; 3. a lock nut; 4. a lower gasket; 5. a locking ring; 6. a limiting ring; 7. a fixed sleeve; 8. a threaded jackscrew; 9. a cavity nut; 10. a connecting thread; 11. a threaded connecting block; 12. a gasket is arranged on the upper part; 13. and (3) a threaded hole.

Detailed Description

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, directly connected, indirectly connected through an intermediate medium, or may be communication between two elements, and in the following, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, in the present utility model, a reliable fixing and sealing structure includes a converter rod body 1, a lock nut 3 sleeved outside the converter rod body 1, a sensor rod body 2 arranged below the converter rod body 1, a cavity nut 9 fixedly connected to an outer surface of the sensor rod body 2, a fixing sleeve 7 fixedly connected to an outer surface of the sensor rod body 2, and a lower gasket 4 sleeved outside the converter rod body 1.

The inside of lock nut 3 is equipped with gasket 12, and the upper surface of going up gasket 12 and lock nut 3's interior roof fixed connection, and screw hole 13 has been seted up to lock nut 3's surface, and screw hole 13's inner wall threaded connection has screw thread jackscrew 8, and the sealed effect when deepening the connection through last gasket 12 utilizes screw hole 13 and screw thread jackscrew 8, will be better fixed when connecting.

The surface cover of the converter body of rod 1 is equipped with locking ring 5, the surface fixedly connected with spacing ring 6 of the converter body of rod 1, the upper surface of spacing ring 6 contacts with the bottom surface of locking ring 5, connecting screw thread 10 has been seted up to the surface of fixed cover 7, the surface fixedly connected with screw thread connecting block 11 of sensor body of rod 2, the same material is all adopted to the converter body of rod 1 and sensor body of rod 2, the inner wall of lock nut 3 and the surface looks adaptation of connecting screw thread 10, through locking ring 5 and spacing ring 6, can be to the better spacing of the converter body of rod 1 during installation, utilize lock nut 3 and the cooperation of connecting screw thread 10, will be better screw thread seal during the installation.

The working principle of the utility model is as follows: when the converter rod body 1 is assembled and connected with the sensor rod body 2, firstly the converter rod body 1 at the bottom of the operation part of the converter is inserted into the fixing sleeve 7, then the insertion position of the converter rod body 1 can be limited by the limiting ring 6, then the locking nut 3 is rotated downwards by a spanner, the locking nut 3 can be rotated on the surface of the connecting thread 10, double sealing can be carried out between the locking nut 3 and the fixing sleeve 7 by using the upper gasket 12 and the lower gasket 4, finally the threaded jackscrew 8 is rotated in the threaded hole 13, the fixing sleeve 7 outside the sensor rod body 2 can be locked again, and then the assembly of the locking nut 3 and the fixing sleeve 7 is firmer.

While the utility model has been described with reference to the preferred embodiments, it will be apparent to those skilled in the art that the utility model is not limited to the details of the exemplary embodiments and that the utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof, as long as the scope of the utility model is defined by the claims and its spirit and scope. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (6)

1. A reliable fixed seal structure, characterized in that: including the converter body of rod (1), the outside cover of converter body of rod (1) is equipped with lock nut (3), the below of converter body of rod (1) is equipped with sensor body of rod (2), the surface fixedly connected with cavity nut (9) of sensor body of rod (2), the surface fixedly connected with of sensor body of rod (2) is fixed cover (7), the outside cover of converter body of rod (1) is equipped with gasket (4) down.

2. A reliable fixed seal structure as claimed in claim 1 wherein: an upper gasket (12) is arranged in the lock nut (3), and the upper surface of the upper gasket (12) is fixedly connected with the inner top wall of the lock nut (3).

3. A reliable fixed seal structure as claimed in claim 1 wherein: the outer surface of lock nut (3) has seted up screw hole (13), the inner wall threaded connection of screw hole (13) has screw thread jackscrew (8).

4. A reliable fixed seal structure as claimed in claim 1 wherein: the outer surface of the converter rod body (1) is sleeved with a locking ring (5), the outer surface of the converter rod body (1) is fixedly connected with a limiting ring (6), and the upper surface of the limiting ring (6) is in contact with the bottom surface of the locking ring (5).

5. A reliable fixed seal structure as claimed in claim 1 wherein: the outer surface of the fixed sleeve (7) is provided with a connecting thread (10), and the outer surface of the sensor rod body (2) is fixedly connected with a threaded connecting block (11).

6. A reliable fixed seal structure as claimed in claim 1 wherein: the converter rod body (1) and the sensor rod body (2) are made of the same material, and the inner wall of the lock nut (3) is matched with the outer surface of the connecting thread (10).