CN217687657U

CN217687657U - Small-sized pressure gauge capable of observing pressure on two sides

Info

Publication number: CN217687657U
Application number: CN202221796697.4U
Authority: CN
Inventors: 李琪; 温金建; 胡小燕
Original assignee: Hongqi Instrument Changxing Co ltd
Current assignee: Hongqi Instrument Changxing Co ltd
Priority date: 2022-07-11
Filing date: 2022-07-11
Publication date: 2022-10-28
Anticipated expiration: 2032-07-11

Abstract

The utility model belongs to the technical field of the manometer and specifically relates to a but small-size manometer of two-sided observation pressure is related to, it is including connecting and installing in the watchcase that connects, be provided with measurement system and indicating system in the watchcase, indicating system is including two pointers that can take place the displacement under the measurement system drive and two sets of graduations of respectively towards the not equidirectional lateral wall of watchcase, and two sets be provided with transparent observation luffer boards, two on the watchcase lateral wall that the graduations orientation was faced respectively the pointer is each other linkage and with the graduations one-to-one. This application has the effect of realizing two-sided observation manometer internal pressure indicator, improves the manometer of single face demonstration and has the inconvenient problem of observation in actual observation.

Description

Small-sized pressure gauge capable of observing pressure on two sides

Technical Field

The application relates to the field of pressure gauges, in particular to a small pressure gauge capable of observing pressure on two sides.

Background

The pressure gauge is an instrument which takes an elastic element as a sensitive element and measures and indicates the pressure higher than the ambient pressure, and the application is very wide. In the related art, a transparent glass plate for observing the change of an internal pointer is arranged on the surface of a pressure gauge, a bourdon tube is arranged in the pressure gauge, the bourdon tube expands under the action of internal pressure to generate elastic deformation, and then the pressure deformation of the bourdon tube is transmitted to the pointer through a transmission mechanism arranged in the pressure gauge, so that the pointer rotates to display the pressure.

In view of the above-mentioned related technologies, the inventor believes that the transparent glass plate of the pressure gauge is usually only disposed on the top or the side wall of the pressure gauge for displaying the pointer pressure in a single direction, and only can be observed in a single direction, but the pressure gauges of the same specification may be respectively disposed at different heights of the device, and the pressure gauge with a single display may limit the observation angle of the operator, which results in inconvenient observation.

SUMMERY OF THE UTILITY MODEL

In order to improve the inconvenient condition of manometer of single face demonstration existence observation in actual observation, this application provides a but small-size manometer of two-sided observation pressure.

The application provides a but small-size manometer of two-sided observation pressure adopts following technical scheme:

the utility model provides a but small-size manometer of two-sided observation pressure, includes to connect and installs in the watchcase that connects, be provided with measurement system and indicating system in the watchcase, indicating system is including two pointers that can take place the displacement under the measurement system drive and two sets of graduates of the not equidirectional lateral wall of watchcase respectively, and two sets be provided with transparent observation luffer boards on the watchcase lateral wall that the graduate was faced respectively, two the pointer is linked each other and with the graduate one-to-one.

Through adopting above-mentioned technical scheme for the pointer changes can all be observed to the lateral wall of watchcase equidirectional not to direct reading under the supplementary of corresponding graduation apparatus, and it is obvious to instruct, realizes two-sided observation pressure, improves the manometer of single face demonstration and has the inconvenient problem of observation in actual observation.

Optionally, the measuring system includes a spiral pipe, a straight pipe section of the spiral pipe is fixedly inserted into the joint, a spiral section of the spiral pipe is located in the watch case, and gaps are formed between the periphery of the spiral pipe and the inner wall of the watch case.

Through adopting above-mentioned technical scheme, adopt a coiled pipe to replace drive mechanism and the bourdon tube in traditional manometer, when the coiled pipe received the internal pressure of equipment or pipeline to be tested, the spiral section of coiled pipe takes place the inflation or shrink, and then the indicator pressure change, adopts the coiled pipe to make whole manometer weight lighter, and the structure is simpler and practical.

Optionally, two of the pointers are perpendicular to each other and have their ends fixedly connected to each other, and one of the pointers is fixed to the outermost sidewall of the spiral segment of the spiral pipe.

By adopting the technical scheme, the pointer is fixed on the outermost side wall of the spiral section of the spiral pipe, and when the spiral pipe expands or contracts, the pointer is driven to generate circular arc displacement along the axis of the spiral section of the spiral pipe; the two pointers are connected in a most direct fixed connection mode, so that the improvement of the degree of cooperation of the pointers is facilitated; when the pressure in the spiral pipe changes, the spiral pipe can drive two synchronous displacement, so that the pressure change can be observed on two adjacent side walls of the watchcase in different directions, the structure is simple and practical, and the processing is more convenient.

Optionally, the two graduations are respectively coated and printed on the corresponding transparent observation window plates.

Through adopting above-mentioned technical scheme for need not additionally to install the clamp plate that has the scale in watchcase inside during processing, make watchcase inner structure simpler, weight is lighter and processing is convenient.

Optionally, a safety hole is formed through the side wall of the watch case.

Through adopting above-mentioned technical scheme, when inside coiled pipe takes place to leak or when damaged, watchcase accessible safety vent maintains inside and outside pressure balance to reduce because of the too big probability that causes the broken accidental injury personnel of transparent glass on the manometer of intraductal pressure, improve the security performance of manometer.

Optionally, the watch case and the joint are in interference fit.

Through adopting above-mentioned technical scheme, replace traditional screw mounting means through interference fit's mode for the installation is simpler, is favorable to the volume production.

Optionally, a mounting ring is coaxially arranged on the end face of the joint, a clamping edge is coaxially and fixedly arranged on the outer wall of the mounting ring, a fastening strip is coaxially and fixedly arranged on the inner wall of the circumference of the watch case, and the clamping edge and the fastening strip are fastened with each other.

Through adopting above-mentioned technical scheme for mutual lock between watchcase and the joint replaces traditional screw mounting means with the mode of lock, makes the installation simpler, is favorable to the volume production.

Optionally, the safety hole runs through towards the one end that connects to be provided with the stopper of protrusion card arris on the collar, the stopper can be pegged graft and butt in the safety hole inner wall.

Through adopting above-mentioned technical scheme, when the stopper was pegged graft into the safety vent, can restrict the watchcase and take place to rotate along self axis direction to carry on spacingly to the graduation apparatus on the watchcase, improve the precision of instructing.

Optionally, the limiting block is connected to the mounting ring in a sliding manner along the radial direction of the mounting ring, a spring for pushing the limiting block to be inserted into the safety hole in a sliding manner is fixedly arranged on the limiting block, and a telescopic axis of the spring is parallel to the sliding direction of the limiting block; the limiting block is far away from the mounting ring and is far away from the end face of the joint, and an arc surface capable of forcing the limiting block to be close to the mounting ring is arranged on the end face of the limiting block.

By adopting the technical scheme, when the watchcase and the connector are mutually buckled, if the position of the limiting block does not correspond to that of the mounting hole, the limiting block can be pressed by the watchcase to be retracted into the mounting hole under the guiding action of the arc surface, the watchcase can be rotated at the moment and the limiting block is aligned to the mounting hole, and then the limiting block can be inserted into and abutted against the safety hole under the action of the reset force of the spring to realize the connection of the watchcase and the connector; the arrangement can ensure that the positions of the limiting block and the mounting hole are not needed to be paid extra attention when the watchcase and the joint are assembled, and the assembly is more convenient.

In summary, the present application includes at least one of the following beneficial technical effects:

the pressure gauge can display pressure in two directions, so that the problem that the pressure gauge with single-sided display is inconvenient to observe in actual observation is solved;

the measuring system and the indicating system are simple and practical in structure, light in overall weight and convenient to process.

Drawings

Fig. 1 is a perspective view of a first embodiment of the present application.

Fig. 2 is a schematic internal structural diagram of the first embodiment of the present application.

Figure 3 is a schematic view of the connection of the second embodiment of the present application to a watch case.

Description of reference numerals: 1. a joint; 2. a watch case; 3. a mounting ring; 4. observing the window plate; 5. a measurement system; 6. an indication system; 7. a coiled pipe; 8. a pointer; 9. a dial gauge; 10. a safety vent; 11. clamping edges; 12. a fastening strip; 13. a limiting block; 14. a spring; 15. mounting a block; 16. an anti-drop block; 17. a circular arc surface.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The first embodiment is as follows:

the embodiment of the application discloses but two-sided observation pressure's small-size manometer, refer to fig. 1 and fig. 2, including the joint 1 that is used for connecting equipment under test or pipeline, install watchcase 2 on the joint 1, watchcase 2 is coaxial with joint 1 to joint 1 is towards the coaxial collar 3 that is fixed with of tip of watchcase 2, collar 3 and watchcase 2 interference fit joint. A transparent observation window plate 4 is fixedly arranged on the end face, far away from the joint 1, of the watchcase 2, and a transparent observation window plate 4 is also fixedly arranged on the circumferential side wall of the watchcase 2, wherein the two observation window plates 4 face the side walls of the watchcase 2 in different directions and are fixedly connected with each other.

With reference to fig. 1 and 2, a measurement system 5 and an indication system 6 are provided inside the watch case 2. The measuring system 5 comprises a coiled pipe 7, the coiled pipe 7 is divided into a straight pipe section and a spiral section, the straight pipe section of the coiled pipe 7 coaxially penetrates through and is fixedly connected to the connector 1, the spiral section of the coiled pipe 7 is located in the watchcase 2, and gaps exist between the periphery of the coiled pipe 7 and the inner wall of the watchcase 2.

Referring to fig. 1 and 2, the indicating system 6 comprises two pointers 8 and two sets of scales 9, wherein the scales 9 correspond to the observation window plates 4 one by one, and the scales 9 are coated on the corresponding observation window plates 4; the two pointers 8 are linked with each other and correspond to the scale 9 one by one. The linkage mode of pointer 8 can select through the connection modes such as drive mechanism linkage or direct fixed, adopts direct fixed connection mode in this application embodiment, two pointer 8 mutually perpendicular and tip fixed connection to each other, and each pointer 8 all is on a parallel with the observation luffer boards 4 at corresponding graduation apparatus 9 place, and the pointer 8 that is on a parallel with watchcase 2 lateral wall is fixed connection in the outermost circle of the spiral section of convolute duct 7 simultaneously.

When the coiled pipe 7 receives the inside pressure of equipment under test or pipeline, the spiral section of coiled pipe 7 takes place the inflation or shrink and then produce the spiral and roll up or loosen, and the spiral section of coiled pipe 7 can drive pointer 8 and take place the displacement in step this moment, and then operating personnel can cooperate the graduation apparatus 9 of observing on the luffer board 4 to observe pressure.

Referring to fig. 1 and 2, a safety hole 10 is further formed in the side wall, away from the observation window plate 4, of the watchcase 2 in a penetrating mode, one end, facing the joint 1, of the safety hole 10 penetrates through the safety hole, the safety hole 10 is used for balancing internal and external air pressure, and the phenomenon that the observation window plate 4 is exploded and splashed to hurt people due to the fact that the pressure in the watch is too high is prevented.

The implementation principle of the first embodiment is as follows: when pressure detection is carried out, the joint 1 is firstly installed on a device to be detected or a pipeline, and the spiral pipe 7 is subjected to the pressure inside the device to be detected or the pipeline, so that the spiral section of the spiral pipe 7 expands or contracts, and the pointer 8 is driven to displace to indicate the pressure; the observation personnel can look over the degree of instruction of manometer pointer 8 from different observation angles through the observation luffer boards 4 of different installation directions and the graduation apparatus 9 of scribbling on the watchcase 2 respectively, and the convenience is observed and simple structure to the manometer.

Example two:

referring to fig. 3, the present embodiment is different from the first embodiment in that case 2 is engaged with joint 1 in a different manner. In this embodiment, the outer wall of the mounting ring 3 is coaxially and fixedly provided with a clamping ridge 11 in the shape of a circular ring, and the inner wall of the circumference of the watch case 2 is coaxially and fixedly provided with a fastening strip 12 in the shape of a circular ring; when watchcase 2 and joint 1 cooperate the joint each other, mutual butt lock between arris 11 and the lock joint strip 12, the terminal surface that watchcase 2 kept away from observation window board 4 also butts on the terminal surface of joint 1 simultaneously.

Referring to fig. 3, the mounting ring 3 penetrates through and is connected with a limiting block 13 in a sliding manner, the sliding direction of the limiting block 13 is perpendicular to the axis of the mounting ring 3, and the limiting block 13 penetrates through the side wall of one end of the mounting ring 3 and can be inserted and abutted against the inner wall of the safety hole 10; meanwhile, the end face of the joint 1 is fixedly provided with a mounting block 15, the mounting block 15 is fixedly connected with a spring 14, and one end of the spring 14, which is far away from the mounting block 15, is fixedly connected to the end face of the limiting block 13, which faces the axis of the mounting ring 3. The telescopic axis of the spring 14 is parallel to the sliding direction of the limiting block 13; meanwhile, the side wall of the limiting block 13 close to the spring 14 is also fixedly provided with an anti-falling block 16 for preventing the limiting block 13 from being separated from the mounting ring 3, and the anti-falling block 16 can abut against the inner wall of the mounting ring 3; the end face of the limiting block 13 far away from the mounting ring 3 and far away from the joint 1 is further provided with an arc surface 17 which can force the limiting block 13 to retract into the mounting ring 3.

The second embodiment is implemented according to the following principle: when the watch case 2 is clamped with the connector 1, if the position of the safety hole 10 corresponds to that of the limiting block 13, the clamping ridge 11 and the buckling strip 12 can be abutted and buckled, and meanwhile, the limiting block 13 can be inserted into the safety hole 10, so that the watch case 2 and the connector 1 can be quickly installed; if safety hole 10 does not correspond with stopper 13 position, the terminal surface of watchcase 2 can be earlier butt on arc surface 17 to under the direction of arc surface 17, stopper 13 slides and contracts into collar 3, and operating personnel can suitably rotate watchcase 2 this moment, and when rotatory to stopper 13 and safety hole 10 position and correspond, stopper 13 can pop out collar 3 and insert safety hole 10 under the effort of spring 14 in, is convenient for watchcase 2 and the quick installation of joint 1.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A small-sized pressure gauge capable of observing pressure on two sides comprises a joint (1) and a meter shell (2) arranged on the joint (1), wherein a measuring system (5) and an indicating system (6) are arranged in the meter shell (2), and is characterized in that: the indicating system (6) comprises two pointers (8) capable of displacing under the drive of the measuring system (5) and two sets of graduations (9) facing to side walls of the watchcase (2) in different directions respectively, the two sets of graduations (9) are provided with transparent observation window plates (4) on the side walls of the watchcase (2) facing to, and the two pointers (8) are mutually linked and correspond to the graduations (9) one by one.

2. The small pressure gauge capable of observing pressure on two sides according to claim 1, wherein: the measuring system (5) comprises a spiral pipe (7), a straight pipe section of the spiral pipe (7) is fixedly arranged in the connector (1) in a penetrating mode, a spiral section of the spiral pipe (7) is located in the watchcase (2), and gaps are formed between the periphery of the spiral pipe (7) and the inner wall of the watchcase (2).

3. A small pressure gauge for double-sided pressure observation according to claim 2, wherein: the two pointers (8) are perpendicular to each other, the ends of the two pointers are fixedly connected with each other, and one pointer (8) is fixed on the side wall of the outermost circle of the spiral section of the spiral pipe (7).

4. The small pressure gauge for double-sided observation of pressure as claimed in claim 1, wherein: and the two graduations (9) are respectively coated and printed on the corresponding transparent observation window plates (4).

5. The small pressure gauge for double-sided observation of pressure as claimed in claim 1, wherein: the side wall of the watchcase (2) is provided with a safety hole (10) in a penetrating way.

6. The small pressure gauge capable of observing pressure on two sides according to claim 1, wherein: the watchcase (2) is in interference fit with the joint (1).

7. The miniature pressure gauge capable of observing pressure on two sides as claimed in claim 5, wherein: the connector is characterized in that a mounting ring (3) is coaxially arranged on the end face of the connector (1), a clamping edge (11) is coaxially and fixedly arranged on the outer wall of the mounting ring (3), a fastening strip (12) is coaxially and fixedly arranged on the inner wall of the circumference of the watchcase (2), and the clamping edge (11) and the fastening strip (12) are mutually fastened.

8. The small pressure gauge for double-sided observation of pressure as claimed in claim 7, wherein: safety hole (10) run through towards the one end that connects (1) to be provided with stopper (13) of protrusion card arris (11) on collar (3), stopper (13) can be pegged graft and butt in safety hole (10) inner wall.

9. The small pressure gauge capable of observing pressure on two sides according to claim 8, wherein: the limiting block (13) is connected to the mounting ring (3) in a sliding mode along the radial direction of the mounting ring (3), meanwhile, a spring (14) used for pushing the limiting block (13) to be inserted into the safety hole (10) in a sliding mode is fixedly arranged on the limiting block (13), and the telescopic axis of the spring (14) is parallel to the sliding direction of the limiting block (13); the limiting block (13) is far away from the mounting ring (3) and is far away from the end face of the joint (1), and an arc surface (17) capable of forcing the limiting block (13) to be close to the mounting ring (3) is arranged on the end face.