CN214502724U

CN214502724U - Novel sacculus expansion manometer

Info

Publication number: CN214502724U
Application number: CN202120900924.2U
Authority: CN
Inventors: 陈军波; 任栋昊; 张伟
Original assignee: Zhoushan Jiaerling Instrument Co ltd
Current assignee: Zhoushan Jiaerling Instrument Co ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2021-10-26
Anticipated expiration: 2031-04-29

Abstract

Novel sacculus expansion manometer, including watchcase, dial plate, pointer, spring pipe, fixing base, core, feed liquor pipe, the stiff end of spring pipe is installed on the fixing base and with feed liquor pipe intercommunication, the core is connected and is transmitted the displacement of displacement end to indicating part with the displacement end of spring pipe, the watchcase bottom face is equipped with the stand axle, be equipped with the centre bore in the stand axle and with feed liquor pipe intercommunication, the stand axle peg graft and cooperate in the fixing base and rather than the intercommunication, the utility model discloses a cooperation of pegging graft of stand axle and fixing base has cancelled prior art's screw fixation, has guaranteed pressurization in-process inner structure position precision and stability.

Description

Novel sacculus expansion manometer

Background

The utility model relates to an instrument and meter technical field, concretely relates to novel sacculus expansion manometer.

Background

The pressure gauge has wide application in the industrial field, and the working principle of the pressure gauge is that the pressure change is represented as the elastic deformation of a sensitive element (a spring tube), and the elastic deformation of the sensitive element is amplified and transmitted to a pointer by an amplifying transmission mechanism to cause the pointer to rotate and cooperate with a dial plate to display the pressure. The pressure gauge comprises a meter shell, a spring tube, a fixed seat, a movement, an indicating component and the like, wherein the fixed end of the spring tube is fixed on the fixed seat and connected with a pressure system, the displacement end of the spring tube is connected with a connecting rod of the movement, the other end of the connecting rod is fixed on a clamping plate of a transmission mechanism and connected with a sector gear, and the sector gear is meshed with a gear on a pointer rotating shaft and drives the pointer to rotate.

The fixing seat and the watchcase are fixed by screws in the prior art, but the connecting structure cannot ensure the position accuracy and stability of the internal structure in the pressurizing process of the pressure gauge.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a novel sacculus expansion manometer.

The utility model adopts the technical scheme as follows:

novel sacculus expansion manometer, including watchcase, dial plate, pointer, spring pipe, fixing base, core, feed liquor pipe, the stiff end of spring pipe is installed on the fixing base and is managed the intercommunication with the feed liquor, the core is connected and is transmitted the displacement of displacement end to indicating part with the displacement end of spring pipe, the watchcase bottom face is equipped with the stand axle, be equipped with the centre bore in the stand axle and manage the intercommunication with the feed liquor, the stand axle plug-in fit just communicates rather than the fixing base.

And a sealing ring is arranged between the upright post shaft and the fixed seat.

The stand axle up end is equipped with the annular groove, the sealing washer is installed in the annular groove. And the upright post shaft and the fixed seat are in interference fit.

The bottom end face of the watch case is provided with a clamping groove, and the lower clamp plate of the movement is buckled into the clamping groove for installation. The inner wall of the clamping groove is provided with a clamping groove, and the lower clamp plate of the movement is clamped into the clamping groove to be installed in a matched mode. The watchcase and the liquid inlet pipe are integrally arranged.

The fixing seat is a copper seat.

Has the advantages that: the utility model discloses a stand axle and fixing base cooperation of pegging graft has cancelled prior art's screw fixation, has guaranteed pressurization in-process inner structure position precision and stability.

Drawings

Fig. 1 is the structural intention of the present invention.

Fig. 2 is an enlarged view of a portion a.

FIG. 3 is an enlarged view of the portion B.

Watchcase 1, dial plate 2, pointer 3, fixing base 4, core 5, feed liquor pipe 6, stand axle 7, sealing washer 8, annular groove 9, draw-in groove 10, joint groove 11.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings and examples.

Novel sacculus expansion manometer, including watchcase 1, dial plate 2, pointer 3, spring pipe, fixing base 4, core 5, feed liquor pipe 6, the stiff end of spring pipe is installed on fixing base 4 and is managed 6 intercommunications with the feed liquor, core 5 is connected and transmits the displacement of displacement end to indicating part with the displacement end of spring pipe, 1 bottom face of watchcase be equipped with stand axle 7 and manage 6 intercommunications with the feed liquor, the cooperation of pegging graft of stand axle 7 and fixing base 4, the utility model discloses a cooperation of pegging graft of stand axle 7 and fixing base 4 has cancelled prior art's screw fixation, has guaranteed pressurization in-process inner structure position precision and stability.

Install sealing washer 8 between stand axle 7 and the fixing base 4, guarantee the leakproofness between stand axle 7 and the fixing base 4, ensure that whole gaseous flow direction can not produce the leakage, make the value of manometer reach the most accurate.

An annular groove 9 is formed in the upper end face of the upright post shaft 7, and the sealing ring 8 is installed in the annular groove 9. The upright post shaft 7 and the fixed seat 4 are in interference fit, and the interference fit connection is characterized by simple structure, good centering property, large bearing capacity, small strength weakening of the shaft and the hub and good impact resistance.

The fixed seat 4 is a copper seat.

A clamping groove 10 is arranged on the bottom end face of the watch case 1, and the lower clamping plate of the movement 5 is buckled into the clamping groove 10 for installation. The inner wall of the clamping groove 10 is provided with a clamping groove 11, and the lower clamping plate of the machine core 5 is clamped into the clamping groove 11 to be installed in a matched mode. Watchcase 1 sets up with feed liquor pipe 6 an organic whole, and the position that sets up of this structure is accurate, promotes the manometer precision.

Fixing base 4 and the internal portion of casing stand axle 7 interference fit cancel the screw fixation, effectively guarantee internal structure position precision and stability in the pressurization process simultaneously with 5 draw-in grooves 10 of core.

It is obvious that the above embodiments of the present invention are only examples for illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. There is no need or no way to give poor examples of all embodiments. And that such obvious changes and modifications are within the scope of the present invention as defined by the appended claims.

Claims

1. Novel sacculus expansion manometer, including watchcase (1), dial plate (2), pointer (3), bourdon tube, fixing base (4), core (5), feed liquor pipe (6), the stiff end of bourdon tube is installed on fixing base (4) and is communicate with feed liquor pipe (6), core (5) are connected and transmit the displacement of displacement end to indicating part, its characterized in that with the displacement end of bourdon tube: the bottom end face of the watch case (1) is provided with a column shaft (7), a central hole is formed in the column shaft and is communicated with the liquid inlet pipe (6), and the column shaft (7) is in plug-in fit with the fixed seat (4) and is communicated with the fixed seat.

2. The novel balloon-expandable pressure gauge according to claim 1, wherein: and a sealing ring (8) is arranged between the upright post shaft (7) and the fixed seat (4).

3. The novel balloon-expandable pressure gauge according to claim 2, wherein: an annular groove (9) is formed in the upper end face of the upright post shaft (7), and the sealing ring (8) is installed in the annular groove (9).

4. The novel balloon-expandable pressure gauge according to claim 1, wherein: and the upright post shaft (7) is in interference fit with the fixed seat (4).

5. The novel balloon-expandable pressure gauge according to claim 1, wherein: the bottom end face of the watch case (1) is provided with a clamping groove (10), and the lower clamping plate of the movement (5) is buckled into the clamping groove (10) for installation.

6. The novel balloon-expandable pressure gauge according to claim 5, wherein: the inner wall of the clamping groove (10) is provided with a clamping groove (11), and the lower clamping plate of the machine core (5) is clamped into the clamping groove (11) in a matching mode.

7. The novel balloon-expandable pressure gauge according to claim 1, wherein: the watchcase (1) and the liquid inlet pipe (6) are integrally arranged.

8. The novel balloon-expandable pressure gauge according to claim 1, wherein: the fixed seat (4) is a copper seat.