CN2482066Y

CN2482066Y - Leakproof safety manometer

Info

Publication number: CN2482066Y
Application number: CN 01237605
Authority: CN
Inventors: 周建明; 陈祖岳
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-04-26
Filing date: 2001-04-26
Publication date: 2002-03-13
Anticipated expiration: 2011-04-26

Abstract

The utility model belongs to a pressure meter, in particular to the pressure meter having the functions of anti-leakage and anti-splashing and filling liquid in a meter casing. The utility model has the main technical proposal that a meter core and a meter disk and a pointer and a spring pipe are arranged in a cavity body surrounded with the meter casing and a transparent meter window positioned at the front surface of the meter casing. The utility model is characterized in that a concave pit of the bottom surface which is a plane is formed at the side surface of the meter casing formed by a punching press, an inner connector is arranged in the cavity body, after the outer end of the inner connector is extended out the meter casing, the outer end of the inner connector is connected with a pipe connecting nozzle, a step is arranged on the inner connector, a concave groove is arranged at the contact position of the axial end surface and the plane of the step, and an O-shaped sealing ring is arranged in the concave groove. After the device is utilized, the accident of the human body injury can be avoided, and the measurement accuracy of the pressure meter is improved.

Description

Anti-leak safety-type tensimeter

The utility model belongs to a kind of tensimeter, refers in particular to a kind of tensimeter with anti-leak and splashproof function at the watchcase internal-filling liquid.

In the prior art, diameter be φ 100, φ 150mm, watchcase internal-filling liquid with watchcase be hermetic protected against splashing water tensimeter, be mostly on the basis of ordinarily manometer, common watchcase repacking is designed to hermetically-sealed construction, its movement still adopts the movement of ordinarily manometer, joint is the monoblock cast structure, joint adopts screw fastening with being connected of watchcase, the special-shaped rubber blanket is used in the sealing of joint and watchcase, and be coated with fluid sealant, there is one to be used for liquid is circulated into filling hole in the watchcase at the watchcase top, after liquid pours into watchcase, seals with sealing-plug.This tensimeter does not have explosion-proof pressure relief.When flexible member breaks, or the tensimeter pressure guiding system because sealing-plug can not be discharged pressure rapidly, causes the table window to break when leaking, and the accident that operating personnel are damaged happens occasionally; Its two, in existing tensimeter, the liquid of filling has caused chronic leakage to a certain degree between screw, joint and watchcase in the watchcase, not only makes this tensimeter lose original antivibration function, but also can cause pollution to a certain degree; Its three, in existing tensimeter, when operating ambient temperature changed, pressure and atmospheric pressure imbalance in the watchcase caused bourdon tube generation microdisplacement, amplified pointer generation angular displacement, the distortion of build-up of pressure meter accuracy by movement; Its four, in existing tensimeter, watchcase and joint are cast member, the manufacturing process complexity of watchcase, cost height, as use stamping parts instead, then manometric twisting strength is not enough, makes the distortion of tensimeter indication operating accuracy; Joint adopts foundry goods, and its material is loose, and defective such as pore is arranged unavoidably, be mingled with is leaked easily, and security is also relatively poor.

The purpose of this utility model is to seek a kind of anti-leak safety-type tensimeter of rational in infrastructure, easily manufactured, good airproof performance.

Its main technical schemes is by the watchcase and the cavity in the transparent table window besieged city that is positioned at the watchcase front watch core to be installed, dial plate, pointer and bourdon tube, it is characterized in that forming the pit that a bottom surface is the plane in the side of stamping forming watchcase, nipple is set in cavity, the connection adapter was chewed after watchcase was stretched out in the outer end of nipple, step is arranged on nipple, the axial end of step also is the plane, at the axial end of step and the contact position on plane groove is set, the O RunddichtringO is set in groove, the outer side plane of pit contacts with taking over the inner side end of chewing, and takes over passage and the interior channel connection of nipple in chewing;

The back side at watchcase is provided with perforate, and Explosion-proof cap is installed in perforate; At tapping the film air bag is installed, the perforate on the annular projection that this film air bag utilizes the Explosion-proof cap inboard and the watchcase cooperate the inboard that is installed on Explosion-proof cap;

In the end that adapter is chewed and the joint portion of nipple packing washer is set;

Nipple and the sealing of taking between chewing also can be adopted this form: between nipple and adapter are chewed the sealed tube that there is passage inside is set, the two ends of sealed tube are respectively sphere, this sphere is chewed inclined-plane fitted seal corresponding to separately passage place with nipple and adapter respectively, passage 28 is communicated with

passage

24,25, and nipple and adapter are chewed and interconnected;

Nipple and the another kind of seal form of taking between chewing are in the outer end of nipple Rotary-table to be set, and one section excessive portion with the Rotary-table fitted seal is arranged at the passage place that adapter is chewed, and each passage is interconnected, and nipple is chewed with adapter and is connected;

Table window utilization table lid is installed on the front of watchcase, in the joint portion of table window and watchcase the window pad is set, and the section configuration of this window pad is L shaped; Side at watchcase is provided with sealing-plug.

The utility model has the advantages that because whole watchcase is a stamping parts, and at the arcuate flanks of the watchcase pit that to stamp out a bottom surface be the plane, one step is set on the nipple in watchcase, the axial end of this step also is the plane, axial end at step is provided with groove again, in groove, place the O RunddichtringO, utilize nipple and the power that is threaded of taking between chewing, the inner face that axial end on the nipple and pit inner plane and adapter are chewed tightly fits together, compress the O RunddichtringO, produce good sealing effectiveness, guaranteed that the filling liquid in the tensimeter watchcase does not leak from the joint portion of watchcase and nipple, and original sealing is to utilize a special sealing gasket, the sealing pad simultaneously is an arcwall face, and another side is the plane, and cooperates with plane nipple with the watchcase of arc respectively, the sealing effectiveness of this sealing means is bad, and sealing gasket damages easily; Secondly, be provided with Explosion-proof cap at the watchcase back side, when tensimeter pressure guiding system generation leakage phenomenon, Explosion-proof cap can eject from tensimeter back immediately, pressure in the pressure guiding system is released, avoided the interior pressure of pressure guiding system to manometric positive area scattering, the operator has been caused the accident of personal injury; The 3rd, owing to the film air bag has been installed at the back side of watchcase, when above-mentioned manometric environment temperature changes, pressure and atmospheric pressure imbalance in the watchcase, the pressure gage spring tube pipe end is subjected to displacement, when causing the tensimeter index error, the film air bag can change shape thereupon, make pressure and atmospheric pressure balance in the watchcase,, play the effect of automatic compensation to guarantee manometric measuring accuracy; The 4th, be provided with hermetically-sealed construction at nipple with taking over the joint portion chew, improved sealing effectiveness, its hermetically-sealed construction can be the O-ring seal of simple in structure a, good sealing effect; Also can be and take over the sealed tube sealing that dribbling face in end is set between chewing at nipple, utilize nipple and the power that screws of taking over the screw thread pair of chewing, sealed tube, nipple, adapter are chewed compress, and make it produce plastic yield, realize sealing; Can also on nipple, make a Rotary-table, utilize nipple and the power that screws of taking over the screw thread pair generation of chewing, make the conical surface of Rotary-table and take over the excessive portion wringing fit of chewing on the passage, make it produce plastic yield, reach the purpose of sealing.

Fig. 1 is a planimetric map of the present utility model.

Fig. 2 is the M-M view among Fig. 1.

Fig. 3 is the partial enlarged drawing of A among Fig. 2.

Fig. 4 is the partial enlarged drawing of C among Fig. 2.

Fig. 5 is the partial enlarged drawing of B among Fig. 1.

Fig. 6 is the another kind of structural drawing of M-M view among Fig. 1.

Fig. 7 is the 3rd a kind of structural drawing of M-M view among Fig. 1.

Fig. 8 is the partial enlarged drawing of D among Fig. 2.

Fig. 9 is the partial enlarged drawing of E among Fig. 6.

Figure 10 is the partial enlarged drawing of F among Fig. 7.

As shown in the figure:

By the watchcase 1 and the cavity 23 in transparent table window 5 besieged cities that are positioned at watchcase 1 front watch core 15 is being installed, dial plate 3, pointer 4 and bourdon tube 12, forming a bottom surface in the side of stamping forming watchcase 1 is the pit 35 on plane 34, nipple 16 is set in cavity 23, the outer end of nipple 16 is stretched out watchcase 1 back connection adapter and is chewed 11, on nipple 16, step is arranged, the axial end of step also is the plane, at the axial end of step and the contact position on plane 34 groove 36 is set, O RunddichtringO 17 is set in groove 36, the outer side plane of pit 35 is chewed 11 inner side end and contact with taking over, and takes over the passage 25 chewed in 11 and nipple 16 interior passages 24 and is communicated with.

At the back side of watchcase 1 perforate 32 is set, Explosion-proof cap 13 is installed in perforate 32, perforate 32 on the annular projection 31 that film air bag 14 utilizes Explosion-proof cap 13 inboards and the watchcase 1 cooperate the inboard that is installed on Explosion-

proof cap

13,6 among Fig. 2,7 is respectively movement screw and dial screw;

Chew 11 end and the joint portion of nipple 16 is provided with packing washer 10 in adapter.

Also can and take over and chew 20 the sealed tube 19 that there is passage 28 inside is set at nipple 18, the two ends of sealing pipe 19 are respectively sphere 27, sphere 27 is respectively with nipple 18 and take over inclined-plane 26 fitted seal chew on 20 corresponding to separately

passage

24,25 places, passage 28 is communicated with

passage

24,25, and nipple 18 is chewed 20 with adapter and interconnected.

One Rotary-table 29 can also be set in the outer end of nipple 21, and chewing 22 passage 25 places in adapter has one section excessive portion 30 with Rotary-table 29 fitted seal, and passage 24 is communicated with 25, and nipple 21 is chewed 22 with adapter and is connected.

Table window 5 utilization tables lid 8 is installed on the front of watchcase 1, joint portion at table window 5 and watchcase 1 is provided with window pad 9, the section configuration of this window pad 9 is L shaped, during installation, the part that watchcase 1 end is outwards routed up is pressed in one side of window pad 9 on the table window 5, the another side of window pad 5 is the inwall that free state wraps in watchcase 1, when the extruding force of 1 pair of window pad 9 of watchcase is excessive, but one side free shrink that is free state, played certain regulating and compensating role, avoid damaging by pressure and leaking, be provided for stopping up the sealing-plug 2 in filling hole in the side of watchcase 1.

Claims

1, anti-leak safety-type tensimeter, by the cavity (23) in watchcase (1) transparent table window (5) besieged city positive watch core (15) is being installed with being positioned at watchcase (1), dial plate (3), pointer (4) and bourdon tube (12), it is characterized in that forming the pit that a bottom surface is plane (34) (35) in the side of stamping forming watchcase (1), nipple (16) is set in cavity (23), the outer end of nipple (16) is stretched out the connection adapter of watchcase (1) back and is chewed (11), on nipple (16), step is arranged, the axial end of step also is the plane, at the axial end of step and the contact position of plane (34) groove (36) is set, O RunddichtringO (17) is set in groove (36), the outer side plane of pit (35) is chewed (11) with adapter inner side end contacts, and takes over the interior passage (24) of the passage (25) chew in (11) and nipple (16) and is communicated with.

2, tensimeter according to claim 1 is characterized in that chewing the end of (11) in adapter and the joint portion of nipple (16) is provided with packing washer (10).

3, tensimeter according to claim 1, it is characterized in that chewing and between (20) inside is set the sealed tube of passage (28) (19) is arranged in nipple (18) and adapter, the two ends of sealing pipe (19) are respectively sphere (27), sphere (27) is chewed (20) with nipple (18) and adapter respectively and is gone up corresponding to passage (24) separately, inclined-plane (26) fitted seal that (25) are located, passage (28) is communicated with passage (24), (25), and nipple (18) is chewed (20) with adapter and interconnected.

4, tensimeter according to claim 1, the outer end that it is characterized in that nipple (21) is Rotary-table (29), the passage (25) of chewing (22) in adapter is located one section excessive portion (30) with Rotary-table (29) fitted seal, passage (24) is communicated with (25), and nipple (21) is chewed (22) and is connected with adapter.

5, tensimeter according to claim 1 is characterized in that at the back side of watchcase (1) perforate (32) being set, and Explosion-proof cap (13) is installed in perforate (32).

6, tensimeter according to claim 5 is characterized in that locating to be equipped with film air bag (14) in perforate (32).

7,, it is characterized in that film air bag (14) utilizes the inboard that is installed on Explosion-proof cap (13) that cooperates of perforate (32) on the inboard annular projection (31) of Explosion-proof cap (13) and the watchcase (1) according to claim 5 or 6 described tensimeters.

8, tensimeter according to claim 1 is characterized in that showing window (5) and utilizes table lid (8) to be installed on the front of watchcase (1), in the joint portion of table window (5) and watchcase (1) window pad (9) is set, and the section configuration of this window pad (9) is L shaped.

9, tensimeter according to claim 1 is characterized in that in the side of watchcase (1) sealing-plug (2) being set.