阅读说明：本技术 一种万向自复位压力表 (Universal self-resetting pressure gauge ) 是由 周方龙 林晓峰 周一兵 林雷震 卢凯权 林秉论 陈圆圆 于 2021-08-20 设计创作，主要内容包括：本申请涉及一种万向自复位压力表,涉及压力表的技术领域,其包括表头,还包括：接头外套,供表头的接头进行螺纹连接；压紧螺母,设于接头外套的内侧、且上端口能够与表头的接头连通；安装座,设于接头外套下方、且具有导流孔；导通软管,一端与压紧螺母的下端口连通、且另一端与导流孔连通；法兰盘,设置于安装座上；其中,安装座与接头外套通过支撑组件形成转动配合。通过设置能够与安装座相对转动的接头外套,当生产人员扳动表头时,表头能够带动接头外套摆动,并使得表头的指针朝上且面向生产人员,此设计使得生产人员对表头进行校验时,无需弯腰或下蹲即可查看表头的参数,既能便于生产人员对表头的快速校验,还能降低生产人员的工作负担。(The utility model relates to an it is universal from restoring to throne manometer relates to the technical field of manometer, and it includes the gauge outfit, still includes: the joint outer sleeve is used for threaded connection of a joint of the gauge head; the compression nut is arranged on the inner side of the joint outer sleeve, and the upper port of the compression nut can be communicated with the joint of the gauge outfit; the mounting seat is arranged below the joint outer sleeve and is provided with a flow guide hole; one end of the conduction hose is communicated with the lower port of the compression nut, and the other end of the conduction hose is communicated with the flow guide hole; the flange plate is arranged on the mounting seat; wherein, the mount pad passes through supporting component with the joint overcoat and forms normal running fit. Through setting up the joint overcoat that can rotate relatively with the mount pad, when the producer pulled the gauge outfit, the gauge outfit can drive and connect the overcoat swing to make the pointer of gauge outfit up and towards the producer, this design makes the producer check-up the gauge outfit time, need not to bow or squat and to look over the parameter of gauge outfit, can be convenient for the producer to the quick check-up of gauge outfit, can also reduce producer's work burden.)

1. The utility model provides a universal self-reset pressure gauge, includes gauge outfit (1), its characterized in that: further comprising:

the joint outer sleeve (2) is used for performing threaded connection on the joint of the gauge head (1);

the compression nut (7) is arranged on the inner side of the joint outer sleeve (2), and an upper port of the compression nut can be communicated with a joint of the gauge outfit (1);

the mounting seat (4) is arranged below the joint outer sleeve (2) and is provided with a flow guide hole (10);

one end of the conduction hose (11) is communicated with the lower port of the compression nut (7), and the other end of the conduction hose is communicated with the diversion hole (10);

the flange plate (5) is arranged on the mounting seat (4);

the mounting seat (4) and the joint outer sleeve (2) form a rotating fit through the supporting component (3).

2. The universal self-resetting pressure gauge according to claim 1, wherein: the supporting component (3) comprises a return spring (31), one end of the return spring (31) is fixedly connected with the joint outer sleeve (2) and the other end of the return spring is fixedly connected with the mounting seat (4).

3. A universal self-resetting pressure gauge according to claim 2, wherein: the conducting hose (11) is located on the inner side of the return spring (31).

4. A universal self-resetting pressure gauge according to claim 2, wherein: the mounting seat (4) and the flange plate (5) form rotating fit through a sealing bearing.

5. The universal self-resetting pressure gauge according to claim 1, wherein: the support assembly (3) comprises:

the lower end part of the floating stepped shaft (32) is fixedly connected with the mounting seat (4), the upper end part of the floating stepped shaft extends to the inner side of the joint outer sleeve (2), and the flow guide hole (10) extends upwards and penetrates through the floating stepped shaft (32);

the support ring (33) is fixedly sleeved at the upper end part of the floating stepped shaft (32) and is positioned on the inner side of the joint outer sleeve (2);

the limiting ring (34) is fixed on the inner wall of the joint outer sleeve (2) and arranged along the circumferential direction of the joint outer sleeve (2), and the limiting ring (34) is positioned right below the supporting ring (33) and is abutted against the supporting ring (33);

a reset component (35) arranged on the inner side of the joint outer sleeve (2), wherein the reset component (35) can support the joint outer sleeve (2) and can reset the joint outer sleeve (2);

wherein, support ring (33) are round platform form setting, the external diameter of support ring (33) up end is less than the external diameter of its lower terminal surface, the inner wall of spacing ring (34) with there is the confession between the circumference lateral wall of unsteady step shaft (32) joint overcoat (2) wobbling clearance.

6. The universal self-resetting pressure gauge according to claim 5, wherein: the reset assembly (35) comprises:

a spring washer (351) movably arranged on the inner side of the joint outer sleeve (2) and positioned above the support ring (33);

and a return spring (352) having one end fixedly connected to the spring washer (351) and the other end fixedly connected to the pressing nut (7).

7. The universal self-resetting pressure gauge according to claim 6, wherein: the lower end surface of the spring washer (351) can be attached to the upper end surface of the support ring (33).

8. The universal self-resetting pressure gauge according to claim 5, wherein: the floating stepped shaft (32) is arranged in a circular truncated cone shape, and the outer diameter of the upper end face of the floating stepped shaft (32) is smaller than that of the lower end face of the floating stepped shaft.

9. The universal self-resetting pressure gauge according to claim 5, wherein: the conducting hose (11) and the floating stepped shaft (32) form a rotating fit through a sealing bearing.

10. A universal self-resetting pressure gauge according to any one of claims 1-9, wherein: the upper end position of joint overcoat (2) inboard can be dismantled and be connected with thread bush (6), thread bush (6) supply the joint of gauge outfit (1) carries out threaded connection.

Technical Field

The application relates to the field of pressure gauges, in particular to a universal self-resetting pressure gauge.

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 is widely applied to various fields of heating power pipe networks, oil and gas transmission, water and gas supply systems, vehicle maintenance factories and the like.

The pressure gauge in the related art generally comprises a gauge head, a base arranged at the lower end of the gauge head and a flange plate arranged at the lower end of the base, and the pressure gauge can be installed after the flange plate is fixedly connected with an external pipeline.

In the production process of the pressure gauge in the related art, production personnel need to fixedly connect the pressure gauge with a detection device and then frequently adjust precision devices such as a connecting rod hairspring in the pressure gauge so as to verify the pressure gauge, so that the pressure gauge reaches a standard qualified pressure indication value.

When the manufacturer verifies the device at the top of the header, the manufacturer needs to bend down or crouch down to observe the header parameters. Because the production personnel need to check more manometer every day to increase production personnel's work burden, await improvement.

Disclosure of Invention

In order to reduce production personnel's work burden, this application provides a universal self-resetting manometer.

The application provides a universal self-resetting pressure gauge adopts following technical scheme:

the utility model provides a universal self-reset pressure gauge, includes the gauge outfit, still includes: the joint outer sleeve is used for performing threaded connection on the joint of the gauge head; the compression nut is arranged on the inner side of the joint outer sleeve, and an upper port of the compression nut can be communicated with the joint of the gauge outfit; the mounting seat is arranged below the joint outer sleeve and is provided with a flow guide hole; one end of the conduction hose is communicated with the lower port of the compression nut, and the other end of the conduction hose is communicated with the flow guide hole; the flange plate is arranged on the mounting seat; wherein, the mount pad with connect the overcoat and form normal running fit through supporting component.

Through adopting above-mentioned technical scheme, through setting up the joint overcoat that can rotate relatively with the mount pad, when producers pulled the gauge outfit, the gauge outfit can drive and connect the overcoat swing to make the pointer of gauge outfit up and towards producers. This design makes the producer when checking up the gauge outfit, need not to bow or squat down and can look over the parameter of gauge outfit, can be convenient for the producer to the quick check-up of gauge outfit, can reduce producer's work burden again, can also improve production efficiency. Simultaneously, when the user used the manometer, the user also can pull the gauge outfit and rotate to the person of facilitating the use looks over of gauge outfit parameter, and then improves the convenience of use.

In the related art, when a maintenance worker maintains the pressure gauge, a production worker needs to maintain or detect the gauge head by using a maintenance tool or a detection tool. However, pressure gauges are typically mounted on the pipe, and if the pipe is relatively dense, there is a risk that maintenance or inspection tools will interfere with the pipe. This design makes maintenance personal can adjust the angle of gauge outfit to increase maintenance personal's operating space, thereby reduce maintenance tool or detect the risk that instrument and pipeline take place to interfere, and then the maintenance personal's of being convenient for operation.

Optionally, the supporting component comprises a return spring, one end of the return spring is fixedly connected with the joint outer sleeve, and the other end of the return spring is fixedly connected with the mounting seat.

Through adopting above-mentioned technical scheme, when the user pulled the gauge outfit and drove the motion of joint overcoat, return spring takes place elastic deformation. When the user loosens the gauge outfit, the joint outer sleeve drives the gauge outfit to reset under the elastic force action of the return spring. The design can realize the quick movement of the gauge outfit, thereby facilitating the quick adjustment of the gauge outfit angle by a user and further improving the operation convenience. Simultaneously, the automatic re-setting of gauge outfit and joint overcoat can also be realized to this design to further improve the convenience of use. Simultaneously, in case the gauge outfit receives external force when striking, return spring can take place elastic deformation and absorb the impact force to improve the shock resistance of manometer, and then improve the stability in use and the life of manometer.

Optionally, the conducting hose is located inside the return spring.

Through adopting above-mentioned technical scheme, realize the protection of shielding to switching on the hose, reduce the risk that switches on the hose by other article fish tails or cut to improve the stability in use and the life who switches on the hose.

Optionally, the mounting seat and the flange form a rotating fit through a sealing bearing.

Through adopting above-mentioned technical scheme, when user's rotating gauge outfit, the gauge outfit can drive and connect overcoat and mount pad to rotate, and at this moment, switches on the hose and can follow the gauge outfit and rotate. The design can increase the adjustable angle of the gauge head, so that a user can observe parameters of the gauge head in more directions, and the use convenience is further improved.

Optionally, the support assembly includes: the lower end part of the floating stepped shaft is fixedly connected with the mounting seat, the upper end part of the floating stepped shaft extends to the inner side of the joint outer sleeve, and the flow guide hole extends upwards and penetrates through the floating stepped shaft; the support ring is fixedly sleeved at the upper end part of the floating stepped shaft and is positioned on the inner side of the joint outer sleeve; the limiting ring is fixed on the inner wall of the joint outer sleeve and arranged along the circumferential direction of the joint outer sleeve, and the limiting ring is positioned right below the supporting ring and is abutted against the supporting ring; the resetting component is arranged on the inner side of the joint outer sleeve, can support the joint outer sleeve and can reset the joint outer sleeve; the support ring is arranged in a round table shape, the outer diameter of the upper end face of the support ring is smaller than that of the lower end face of the support ring, and a gap for swinging the joint outer sleeve exists between the inner wall of the limit ring and the circumferential side wall of the floating stepped shaft.

Through adopting above-mentioned technical scheme, when the user pulled the gauge outfit, the gauge outfit drove and connects the overcoat swing to make the pointer of gauge outfit up or down. When the user loosens the gauge outfit, the joint outer sleeve drives the gauge outfit to reset under the driving of the reset component. Through setting up simple structure, the convenient supporting component of operation, the person of facilitating the use is to the quick adjustment of gauge outfit angle to improve the operation convenience.

Optionally, the reset assembly includes: the spring washer is movably arranged on the inner side of the joint outer sleeve and is positioned above the support ring; and one end of the reset spring is fixedly connected with the spring washer, and the other end of the reset spring is fixedly connected with the compression nut.

Through adopting above-mentioned technical scheme, when the user pulls the gauge outfit and drives and connect the overcoat motion, reset spring compresses gradually, and meanwhile, spring washer is the slope form under the effect of unsteady step shaft to spring washer's one end with unsteady step shaft butt, the other end with unsteady step shaft separation. When a user loosens the gauge outfit, the reset spring pushes the spring washer to reset, and meanwhile, the compression nut drives the joint outer sleeve and the gauge outfit to reset under the elastic force action of the reset spring. Through setting up simple structure, simple operation, the stable subassembly that resets of drive effect, realize the quick, stable resetting of parts such as joint overcoat and table head to improve the convenience of use.

Meanwhile, the reset spring can provide certain acting force for the compression nut and the floating stepped shaft, and the compression nut and the floating stepped shaft have the moving trend of being far away from each other. Meanwhile, the limiting ring and the supporting ring are mutually abutted tightly, so that the joint outer sleeve is stably supported. This design makes to connect and has certain rigidity between overcoat and the mount pad, effectively reduces gauge outfit and connects the overcoat and appear random wobbling risk to improve the stability in use of manometer.

Optionally, the lower end surface of the spring washer can be attached to the upper end surface of the support ring.

Through adopting above-mentioned technical scheme, when the gauge outfit drives and connects the overcoat swing, the up end of the step shaft that floats and the lower terminal surface form the point contact of spring washer, simultaneously, the spring compression that resets is dodged upwards. When the user releases the gauge head, the spring washer moves downwards under the action of the elastic force of the return spring so as to destroy the original point contact mode of the spring washer and the floating stepped shaft. When the upper end face of the floating stepped shaft is attached to the lower end face of the spring washer, the spring washer is in surface contact with the floating stepped shaft. At this moment, the up end of unsteady step shaft can provide certain spacing effect for spring washer and joint overcoat to make the joint overcoat can the rapid stop swing and reset. The design is ingenious, and the components such as the watch head can be reset quickly, so that the use convenience is further improved.

Optionally, the floating stepped shaft is arranged in a round table shape, and the outer diameter of the upper end face of the floating stepped shaft is smaller than that of the lower end face of the floating stepped shaft.

Through adopting above-mentioned technical scheme, when the swing of joint overcoat, the one end of spacing ring is towards the lower extreme motion of unsteady step shaft, the other end towards the upper end motion of unsteady step shaft. Because the diameter of the lower end of the floating stepped shaft is relatively large, the lower end position of the side wall of the floating stepped shaft can block and support the limiting ring, and the limitation of the maximum swing stroke of the joint outer sleeve is realized. This design can reduce the gauge outfit and excessively swing and cause the cracked risk to appear between support ring and the step shaft that floats to improve the stability in use and the life of manometer.

Optionally, the conducting hose and the floating stepped shaft form a rotating fit through a sealing bearing.

Through adopting above-mentioned technical scheme, when the user rotating gauge outfit, the gauge outfit can drive subassembly such as joint overcoat and rotate, and at this moment, it follows the gauge outfit and rotates to switch on the hose. The design can increase the adjustable angle of the gauge head, so that a user can observe parameters of the gauge head in more directions, and the use convenience is further improved.

Optionally, the upper end position of the inner side of the joint outer sleeve is detachably connected with a threaded sleeve, and the threaded sleeve is used for the joint of the gauge outfit to be in threaded connection.

Through adopting above-mentioned technical scheme, through setting up the detachable thread bush, when the model of the joint of gauge outfit is different, the user only needs to change the thread bush, can satisfy the connection ability of different gauge outfits and joint overcoat to improve the use suitability of manometer.

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

by arranging the joint outer sleeve capable of rotating relative to the mounting seat, when a producer pulls the gauge head, the gauge head can drive the joint outer sleeve to swing, so that a pointer of the gauge head faces upwards and faces the producer, and the design enables the producer to check the gauge head without stooping or squatting so as to check parameters of the gauge head, thereby facilitating the rapid check of the producer on the gauge head and reducing the workload of the producer;

by arranging the supporting component which is simple in structure and convenient to operate, a user can conveniently and quickly adjust the angle of the gauge head, so that the operation convenience is improved;

because the gauge outfit can swing and rotate relative to the mount pad to increase the adjustable angle of gauge outfit, thereby make the user can be in the parameter of more azimuths observation gauge outfit, further improve the convenience in use.

Drawings

Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present application.

Fig. 2 is an exploded view of example 1 of the present application.

Fig. 3 is a partial sectional view of embodiment 1 of the present application.

Fig. 4 is an enlarged schematic view of the region a in fig. 3.

Fig. 5 is a partial sectional view of embodiment 2 of the present application.

Fig. 6 is a schematic view of the overall structure of embodiment 3 of the present application.

Fig. 7 is an exploded view of example 3 of the present application.

Fig. 8 is a partial sectional view of embodiment 3 of the present application.

Fig. 9 is a partial cross-sectional view of the present application in example 3, showing a state in which the joint housing is swung.

Fig. 10 is a partial sectional view of embodiment 4 of the present application.

Description of reference numerals: 1. a gauge head; 2. a joint housing; 3. a support assembly; 31. a return spring; 32. a floating stepped shaft; 33. a support ring; 34. a limiting ring; 35. a reset assembly; 351. a spring washer; 352. a return spring; 4. a mounting seat; 5. a flange plate; 6. a threaded sleeve; 7. a compression nut; 8. a positioning ring; 9. positioning a groove; 10. a flow guide hole; 11. the hose is conducted.

Detailed Description

The present application is described in further detail below with reference to figures 1-10.

The embodiment of the application discloses universal self-resetting pressure gauge.

Example 1:

referring to fig. 1 and 2, universal self-resetting pressure gauge includes gauge outfit 1, joint overcoat 2, supporting component 3 and mount pad 4 that from top to bottom set gradually, connects the inboard upper end position threaded connection of overcoat 2 and has thread bush 6 to the joint of gauge outfit 1 forms threaded connection with thread bush 6. The joint outer sleeve 2 is connected with the mounting seat 4 through the supporting component 3, and the flange plate 5 is fixedly connected to the lower end of the mounting seat 4, so that the mounting seat 4 is connected with an external pipeline conveniently.

Referring to fig. 3 and 4, if the type of the joint of the gauge outfit 1 is adapted to the upper port of the joint housing 2, the joint of the gauge outfit 1 can be directly screwed with the joint housing 2 after the threaded sleeve 6 is unscrewed from the joint housing 2. If the joint model of gauge outfit 1 and threaded sleeve 6 and connect when overcoat 2 can not all be fit for, the user can change the threaded sleeve 6 of different models to satisfy gauge outfit 1 and the being connected of connecting overcoat 2, thereby improve the use suitability of manometer.

Referring to fig. 3 and 4, a compression nut 7 is threadedly coupled to an inner side of the joint housing 2, and the compression nut 7 is located below the threaded sleeve 6. The fixed cover is equipped with holding ring 8 on gland nut 7, connects the inner wall of overcoat 2 to offer the constant head tank 9 that supplies the embedding of holding ring 8 to realize fixing a position 7 mounted position's of gland nut fast. Meanwhile, when the threaded sleeve 6 abuts against the compression nut 7, the threaded sleeve 6 just forms threaded fit with the joint outer sleeve 2, so that the installation position of the threaded sleeve 6 is quickly limited. When the joint of the gauge outfit 1 is screw-engaged with the threaded sleeve 6 or the joint outer case 2, the lower end of the joint of the gauge outfit 1 is inserted into the upper port of the compression nut 7, and the joint of the gauge outfit 1 is made to communicate with the upper port of the compression nut 7.

Referring to fig. 2 and 3, a flow guide hole 10 vertically penetrates through the mounting seat 4, a rubber conduction hose 11 is arranged between the joint outer sleeve 2 and the mounting seat 4, the upper end of the conduction hose 11 is fixedly connected with the compression nut 7, and the lower end of the conduction hose is fixedly connected with the mounting seat 4. Meanwhile, the lower port of the compression nut 7 is communicated with the diversion hole 10 through the conduction hose 11, so that a medium in an external pipeline can enter the conduction hose 11 through the diversion hole 10 and then enter the gauge outfit 1 through the port of the compression nut 7. In other embodiments, the conducting hose 11 may be made of latex or silicone, or may be a flexible bellows, as long as it can be bent.

Referring to fig. 2 and 3, the mounting seat 4 is in a rotational engagement with the joint housing 2 via the support member 3, and the joint housing 2 can swing up and down or left and right. When the user pulls gauge outfit 1, gauge outfit 1 can drive and connect the swing of overcoat 2 to make the pointer of gauge outfit 1 up and towards the producer, so that the fast check-up of producer to gauge outfit 1.

Referring to fig. 2 and 3, the support assembly 3 includes a return spring 31, and an upper end portion of the return spring 31 is fixedly connected to the joint housing 2 and a lower end portion thereof is fixedly connected to the mounting seat 4. When a user pulls the gauge outfit 1 to drive the joint outer sleeve 2 to move, the return spring 31 is elastically deformed. When the user releases the gauge outfit 1, the joint outer sleeve 2 can drive the gauge outfit 1 to reset under the elastic force of the return spring 31. In other embodiments, the return spring 31 may be replaced by an elastic tube, a flexible elastic corrugated tube, or a strip structure made of an elastic material, as long as the elastic connection between the joint housing 2 and the mounting seat 4 can be achieved, and a certain rigid support can be provided for the joint housing 2, and the joint housing 2 can be reset.

Referring to fig. 2 and 3, the lead-through hose 11 is located inside the return spring 31 to achieve shielding protection of the lead-through hose 11, and reduce the risk that the lead-through hose 11 is scratched or cut by other objects, thereby improving the service stability and the service life of the lead-through hose 11.

The implementation principle of the embodiment 1 is as follows: when a producer inspects the gauge outfit 1, the producer can pull the gauge outfit 1, and then the gauge outfit 1 can drive the joint outer sleeve 2 to swing, so that the pointer of the gauge outfit 1 faces upwards and faces the producer. This design makes the producer when checking up to gauge outfit 1, need not to bow or squat down and can look over the parameter of gauge outfit 1, can be convenient for the producer to gauge outfit 1's quick check-up, can reduce producer's work burden again, can also improve production efficiency.

Example 2:

referring to fig. 5, the present embodiment is different from embodiment 1 in that: the mounting seat 4 and the flange 5 form a rotating fit through a sealed bearing, and the mounting seat 4 can rotate around the central line of the diversion hole 10 to realize the universal rotation capability of the joint outer sleeve 2 and the gauge outfit 1. When the user rotates gauge outfit 1, gauge outfit 1 can drive and connect overcoat 2 and mount pad 4 to rotate, and at this moment, switches on hose 11 and can follow gauge outfit 1 and rotate, then the pointer of gauge outfit 1 can be towards the maintainer.

The implementation principle of the embodiment 2 is as follows: maintain gauge outfit 1 when the maintainer to when the parameter of gauge outfit 1 needs to be looked over, the user can rotate gauge outfit 1, then pulls gauge outfit 1 and swings, thereby makes things convenient for the maintainer to look over of gauge outfit 1 parameter, and then improves the operation convenience. Simultaneously, but this design also can increase gauge outfit 1's angle regulation to make the maintainer can look over the parameter of gauge outfit 1 in more positions, in order to improve the convenience of use.

Example 3:

referring to fig. 6 and 7, the present embodiment is different from embodiment 1 in that: the support member 3 includes a floating stepped shaft 32 integrally formed at the upper end of the mount 4, and the upper end portion of the floating stepped shaft 32 extends to the inside of the joint housing 2. Meanwhile, the diversion hole 10 extends upwards and penetrates through the floating stepped shaft 32, the lower end of the conduction hose 11 is fixedly connected with the floating stepped shaft 32, and the conduction hose 11 communicates the lower port of the compression nut 7 with the diversion hole 10.

Referring to fig. 7 and 8, a support ring 33 located inside the joint housing 2 is integrally formed at an upper end portion of the floating stepped shaft 32, a stopper ring 34 is integrally formed at a lower end position of an inner wall of the joint housing 2 in a circumferential direction thereof, the stopper ring 34 is located directly below the support ring 33, and the stopper ring 34 abuts against the support ring 33.

Referring to fig. 7 and 8, the support ring 33 is disposed in a circular truncated cone shape, and an outer diameter of an upper end surface of the support ring 33 is smaller than an outer diameter of a lower end surface thereof. When the joint outer sleeve 2 swings, the circumferential side wall of the support ring 33 can avoid the inner wall of the joint outer sleeve 2, so that interference caused by normal swinging of the joint outer sleeve 2 is avoided.

Referring to fig. 7 and 8, the floating stepped shaft 32 is disposed in a circular truncated cone shape, and an outer diameter of an upper end surface of the floating stepped shaft 32 is smaller than an outer diameter of a lower end surface thereof. Meanwhile, a gap for swinging the joint outer sleeve 2 exists between the inner wall of the limit ring 34 and the circumferential side wall of the upper end of the floating stepped shaft 32, so as to avoid interference on the joint outer sleeve 2.

Referring to fig. 7 and 8, the inner side of the joint housing 2 is provided with a reset component 35, and the reset component 35 can provide a vertically upward acting force to the joint housing 2 so as to support the joint housing 2 and the components such as the watch head 1. Meanwhile, when the user releases the gauge outfit 1, the reset component 35 can reset the components such as the joint housing 2 and the gauge outfit 1.

Referring to fig. 7 and 8, the reset assembly 35 includes a spring washer 351 movably disposed inside the joint housing 2, and the spring washer 351 is located above the support ring 33. Meanwhile, a return spring 352 is disposed between the spring washer 351 and the compression nut 7, and an upper end of the return spring 352 is fixedly connected to the compression nut 7 and a lower end thereof is fixedly connected to the spring washer 351. The return spring 352 is in a compressed state, so that the compression nut 7 and the floating stepped shaft 32 have a tendency to move away from each other, and the limit ring 34 and the support ring 33 abut against each other, thereby achieving stable support of the joint housing 2.

Referring to fig. 8 and 9, the upper end surface of the support ring 33 is horizontally arranged, and the lower end surface of the spring washer 351 can be attached to the upper end surface of the support ring 33. In the process that spring washer 351 reset, when the up end of unsteady stepped shaft 32 and the lower terminal surface laminating of spring washer 351, the up end of unsteady stepped shaft 32 can provide certain spacing effect for spring washer 351 and joint overcoat 2 to make joint overcoat 2 can the rapid stop swing.

The implementation principle of the embodiment 3 is as follows: when a user pulls the gauge outfit 1 to drive the joint outer sleeve 2 to move, the spring washer 351 is inclined under the action of the floating stepped shaft 32, one end of the spring washer 351 is abutted to the floating stepped shaft 32, and the other end of the spring washer is separated from the floating stepped shaft 32. At this time, the upper end surface of the floating stepped shaft 32 comes into point contact with the lower end surface of the spring washer 351, and at the same time, the return spring 352 compresses and causes the spring washer 351 to recede upward. When the user releases the gauge outfit 1, the spring washer 351 moves downward under the elastic force of the return spring 352 to break the original point contact manner of the spring washer 351 and the floating stepped shaft 32, and meanwhile, the compression nut 7 drives the joint housing 2 and the gauge outfit 1 to reset under the elastic force of the return spring 352. When the upper end surface of the floating stepped shaft 32 is fitted with the lower end surface of the spring washer 351, the spring washer 351 is brought into surface contact with the floating stepped shaft 32. At this time, the upper end surface of the floating stepped shaft 32 can provide a certain limiting effect for the spring washer 351 and the joint housing 2, so that the joint housing 2 can rapidly stop swinging, and resetting of the components such as the gauge outfit 1 is realized.

Example 4:

referring to fig. 10, the present embodiment is different from embodiment 3 in that: the lower end of the lead-through hose 11 is in a rotary fit with the floating stepped shaft 32 through a seal bearing, so that the universal rotation capability of the joint housing 2 and the gauge outfit 1 is realized. When a user rotates the gauge outfit 1, the gauge outfit 1 can drive the components such as the joint outer sleeve 2 and the like to rotate, and at the moment, the conduction hose 11 rotates along with the gauge outfit 1. The design can increase the adjustable angle of the gauge head 1, so that a user can observe parameters of the gauge head 1 in more directions, and the use convenience is further improved.

The implementation principle of the embodiment 4 is as follows: when the user looked over the parameter of gauge outfit 1, the user can rotate gauge outfit 1, then pulls gauge outfit 1 and swings to make gauge outfit 1's pointer towards the user, in order to make things convenient for the maintainer to look over of gauge outfit 1 parameter. Simultaneously, but this design also can increase gauge outfit 1's angle of adjustment to make the user can look over the parameter of gauge outfit 1 in more positions, thereby improve the convenience of use.

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.