CN217212850U

CN217212850U - Instrument signal measuring meter pen with pressing type sucker structure

Info

Publication number: CN217212850U
Application number: CN202220388258.3U
Authority: CN
Inventors: 胡明生; 陈平; 窦振寰; 张�林; 张瑞瑞; 黄俏; 刘静; 姬瑶瑶; 宋虎; 张天庚; 石可鹏
Original assignee: Shannxi Diesel Engine Heavy Industry Co Ltd
Current assignee: Shannxi Diesel Engine Heavy Industry Co Ltd
Priority date: 2022-02-25
Filing date: 2022-02-25
Publication date: 2022-08-16
Anticipated expiration: 2032-02-25

Abstract

The utility model provides a push type suction disc structure's instrument signal measurement pen-shape metre, pen-shape metre body left end face outer edge department is equipped with the sucker structure, system has the cylinder air inlet that is located the left side of electrical isolation bars on the pen-shape metre body outer peripheral wall, pen-shape metre body left end face system has the annular groove that is located the sucking disc inboard, and system has the cylinder gas outlet with the inside intercommunication of pen-shape metre body on the annular groove inner ring, the inside linkage piston valve body device that is equipped with the right-hand member fixedly and the left end is located between cylinder gas outlet and the cylinder air inlet of pen-shape metre body, sucking disc and measured object surface actuation and linkage piston valve body device left end and pen-shape metre body inner hole wall location laminating state under, by with the signal measurement probe of measured object surface contact with on with the linkage piston valve body device with detected signal conduction. The utility model discloses utilize cylinder theory of operation and combine the sucking disc, design one kind and can satisfy the measured object surface and for the burnishing surface and do not have any instrument signal measurement pen-shape metre that measures pin wiring stake fixable, adsorb and demolish convenient and fast.

Description

Instrument signal measuring meter pen with pressing type sucker structure

Technical Field

The utility model belongs to the technical field of signal test, concretely relates to push type sucker structure's instrument signal measurement pen-shape metre.

Background

The instrument measuring stylus in the current market is a handheld test stylus, and the probe structure of the handheld test stylus is mainly divided into three types, namely an alligator clip type probe and a telescopic hook type probe. When signal sampling measurement is carried out, the crocodile mouth clamp type and the telescopic probe hook type can be fixed at a wiring terminal or a pin by means of a special structure, and signal measurement sampling can be carried out without the need of hand-held contact operation of people; the probe type is limited by a probe of a meter pen, and can only be operated by hand.

The crocodile mouth clamp type, probe type and telescopic probe hook type test meter pens with three structures can not meet the requirements in the following measurement occasions: measuring the busbar voltage for fault diagnosis and troubleshooting at an industrial low-voltage power transmission and distribution site for a long time without brake-separating band points; the bus bars are all copper bars or aluminum bars with smooth surfaces, and no measuring pin is used for fixing the test meter pen; secondly, vibration parameters of important equipment for rotation or vibration are measured on site, but measuring points are located at key parts of the equipment, the surface is smooth, no test suspension point exists, and test points cannot be set in a mode that drilling or using an adhesive and the like influence the test surface; in addition, after the conventional sucker structure is sucked to a flat surface, the sucker structure needs to be pulled out by force when being detached, which is unsafe in a live-line measurement environment and affects the service life of the sucker, so that improvement is needed for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem: the utility model provides a push type sucker structure's instrument signal measurement pen-shape metre utilizes cylinder theory of operation to combine the sucking disc, design one kind and can satisfy measured object surface for the planishing face and do not have any instrument signal measurement pen-shape metre that measures pin wiring stake fixable, can realize sucker structure automatic absorption simultaneously and demolish the function, improve the convenience and the security of signal measurement operation, increase of service life, compact structure, good reliability, easy operation, suitability are strong.

The utility model adopts the technical proposal that: the instrument signal measuring meter pen with the pressing type sucker structure comprises a meter pen body with an annular cylindrical structure, wherein an electrical isolation grid is arranged in the middle of the outer circumferential wall of the meter pen body, a sucker is arranged at the outer edge of the left end face of the meter pen body, an air cylinder air inlet communicated with the inside of the meter pen body and positioned on the left side of the electrical isolation grid is formed in the outer circumferential wall of the meter pen body, an annular groove positioned on the inner side of the sucker is formed in the left end face of the meter pen body, an air cylinder air outlet communicated with the inside of the meter pen body is formed in the inner annular surface of the annular groove, a linkage piston type valve body device with the right end fixed and the left end positioned between the air cylinder air outlet and the air cylinder air inlet is arranged in the meter pen body, and the air cylinder air outlet and the air cylinder air inlet are disconnected under the positioning and fitting state between the left end of the linkage piston type valve body device and the wall of the meter pen body under the action of the linkage piston type valve body with the expansion function at the left end, or the left end of the linkage piston type valve body device is compressed and moves right to communicate the air outlet of the air cylinder with the air inlet of the air cylinder; the measuring pen is characterized in that a signal measuring probe with a left end extending into the sucker and a right end fixedly connected with the left end of the linkage piston type valve body device is arranged at the left end of the inner hole of the meter pen body, the sucker is attracted with the surface of a measured object, the left end of the linkage piston type valve body device is positioned and attached with the inner hole wall of the meter pen body, a detection signal is conducted to the linkage piston type valve body device through the signal measuring probe in surface contact with the measured object, and the right end of the linkage piston type valve body device is connected with a measuring cable or a conversion joint of an instrument.

The linkage piston type valve body device comprises an air inlet valve, a spring and a test plug, wherein the air inlet valve is of a T-shaped structure, a tapered hole which is located on the left side of an air inlet of an air cylinder and is in transitional connection with a small-diameter inner hole at the left end and a large-diameter inner hole at the right end is formed in the inner hole wall of a gauge pen body, a tapered ring surface matched with the tapered hole wall of the gauge pen body is formed in the large-head end of the air inlet valve, the left end of the air inlet valve and the left end of the left end are fixedly connected with a signal measuring probe of a spherical surface, the two ends of the spring are respectively connected with the large-diameter end of the air inlet valve and the left end of the test plug, the test plug is of a T-shaped structure, the left end of the test plug is fixed on the inner hole wall of the large-diameter inner hole of the gauge pen body, and the right end of the test plug is connected with a measuring cable or a conversion joint of an instrument.

Further, the air inlet valve and the signal measuring probe are of an integrated structure.

Further, the conversion joint comprises a T-shaped sleeve and a signal connection pin, wherein the inner hole of the T-shaped sleeve is a stepped hole, the left end of the signal connection pin is an annular sleeve which is sealed by the right end of a test plug which is matched with the right end of a circular base of a male plug, the right end of the signal connection pin is a connecting plate which is of an integrated structure and is arranged on the right end face of the annular sleeve, and the end part of the connecting plate at the right end of the signal connection pin is of an arc structure and is provided with a through hole.

Furthermore, the sucker and the meter pen body are of an integrated structure made of insulating materials.

The utility model has the advantages compared with the prior art:

1. the technical scheme designs an instrument signal measuring meter pen which can meet the requirement that the surface of a measured object is a flat surface and can be fixed without any measuring pin wiring pile by utilizing the working principle of a cylinder and combining a sucker;

2. according to the technical scheme, the sucker is pressed on the surface of the test object, so that the automatic sucking and dismounting functions of the sucker structure are realized, and the convenience and the safety of signal measurement operation are improved;

3. the technical scheme designs the adapter which is adaptive to the test plug, the adapter can be used as a test meter pen to connect the test plug with a test instrument for signal measurement, and can also be connected with an alligator clip or a telescopic probe hook type test meter pen by installing the adapter, so that the flexibility of a measurement mode is improved;

4. the technical scheme can be used for wired connection between a measuring cable and instrument equipment; can also realize the wireless remote unmanned monitoring sampling of signal through installing the wireless signal module in test plug department, long service life, compact structure, good reliability, easy operation, suitability are strong.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the utility model in a normal adsorption state;

FIG. 3 is a schematic view of the state of the present invention when the adsorption is eliminated;

fig. 4 is a schematic view of the adapter structure of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to fig. 1-4 in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements" does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

An instrument signal measuring stylus with a pressing type sucker structure is shown in figure 1 and comprises a stylus body 7 with an annular cylindrical structure, wherein an electrical isolation grid 6 is arranged in the middle of the outer circumferential wall of the stylus body 7, a sucker 2 is arranged at the outer edge of the left end face of the stylus body 7, an air cylinder air inlet 5 communicated with the inside of the outer circumferential wall of the stylus body 7 and positioned on the left side of the electrical isolation grid 6 is arranged on the outer circumferential wall of the stylus body 7, an annular groove positioned on the inner side of the sucker 2 is arranged on the left end face of the stylus body 7, an air cylinder air outlet 3 communicated with the inside of the stylus body 7 is arranged on the inner annular face of the annular groove, a linkage piston type valve body device with the right end fixed and the left end positioned between the air cylinder air outlet 3 and the air cylinder air inlet 5 is arranged inside the stylus body 7, and the air cylinder air outlet 3 and the air cylinder air inlet 5 are disconnected under the positioning and fitting state of the left end of the inner hole wall of the linkage piston type valve body device with the stylus body 7 under the action of the linkage piston type valve body, or the left end of the linkage piston type valve body device is compressed and moves right to communicate the air outlet 3 of the air cylinder with the air inlet 5 of the air cylinder; the left end of the inner hole of the meter pen body 7 is provided with a signal measuring probe 1, the left end of the signal measuring probe extends into the sucker 2, the right end of the signal measuring probe is fixedly connected with the left end of the linkage piston type valve body device, the sucker 2 is attracted with the surface of a measured object, the left end of the linkage piston type valve body device is positioned and attached with the inner hole wall of the meter pen body 7, a detection signal is transmitted to the linkage piston type valve body device through the signal measuring probe 1 which is in contact with the surface of the measured object, and the right end of the linkage piston type valve body device is connected with a measuring cable or a conversion joint 10 of an instrument; in the structure, by utilizing the working principle of the cylinder and combining the sucker 2, the instrument signal measuring meter pen which can meet the requirements that the surface of a measured object is a flat surface and is not provided with any measuring pin wiring pile and can be fixed is designed, and the sucker 2 is pressed on the surface of the measured object, so that the automatic adsorption and removal functions of the sucker 2 structure are realized, and the convenience and the safety of signal measuring operation are improved;

the signal measuring probe 1 is used for contacting with the surface of an object to be measured and measuring electric signals of the object, such as voltage, vibration, temperature and other signals; the sucker 2 and the meter pen body 7 are designed into an integral structure, a closed space is formed between the surface of a tested object and the inside of the sucker 2 by pressing the sucker 2 to deform, and the test meter pen is firmly adsorbed and fixed on the surface of the tested object by utilizing the difference between the internal and external atmospheric pressures; the air outlet 3 of the air cylinder is communicated with the inside of the sucker 2, so that external atmospheric air can enter the sucker 2, the internal and external atmospheric pressures of the sucker 2 are consistent, the air inlet valve 4 is forced to move by pressing the sucker 2, and the establishment of the internal and external atmospheric pressure difference of the sucker is realized by matching with the air outlet 3 of the air cylinder and the air inlet 5 of the air cylinder; the air inlet 5 of the air cylinder is communicated with the outside of the sucker 2 to ensure that outside air enters the meter pen body 7, and when the air inlet valve 4 is opened, the outside air enters the sucker 2 through the air inlet valve 4; the electrical isolation fence 6 and the meter pen body 7 are designed into a whole, so that when the voltage electrified signal is measured, a reasonable distance between a test person finger and the cylinder air inlet 5 can be ensured, the occurrence of electric arc overflowing from the cylinder air inlet 5 is prevented, and the occurrence of electric shock danger is avoided.

The specific structure of the linkage piston type valve body device is as follows: the linkage piston type valve body device comprises an air inlet valve 4, a spring 8 and a test plug 9, wherein the air inlet valve 4 is of a T-shaped structure, a conical hole which is positioned on the left side of an air inlet 5 of an air cylinder and is used for connecting a small-diameter inner hole at the left end with a large-diameter inner hole at the right end in a transition mode is formed in the inner hole wall of a meter pen body 7, a conical ring surface which is matched with the conical hole wall of the meter pen body 7 is formed in the large-head end of the air inlet valve 4, the left end of the air inlet valve 4 is fixedly connected with a signal measuring probe 1 of which the left end is spherical, the two ends of the spring 8 are respectively connected with the large-diameter end of the air inlet valve 4 and the left end of the test plug 9, the test plug 9 is of a T-shaped structure, the left end of the test plug 9 is fixed on the large-diameter inner hole wall of the meter pen body 7, and the right end of the test plug 9 is connected with a measuring cable or a conversion joint 10 of an instrument; specifically, the air inlet valve 4 and the signal measuring probe 1 are of an integrated structure; in the structure, the spring 8 has two functions; firstly, a thrust is provided for the air inlet valve 4, so that the air inlet valve 4 is always kept closed under the action of no external force, and external air cannot enter the suction disc 2; secondly, the signal measuring probe 1 is elastically connected, and if the surface of the measured object is in a high-frequency vibration environment, the signal measuring probe 1 is ensured to be in good contact with the surface of the measured object by absorbing most vibration interference, so that the fidelity of the measured signal is improved; the test plug 9 is elastically connected with the signal measuring probe 1 through the spring 8, and transmits a measured signal to the test plug 9, and the test plug 9 is designed into a male plug round base and can be connected with measuring cables of various instruments; meanwhile, the adapter 10 can be connected to expand the wiring types.

As shown in fig. 1 and 4, the adapter 10 is composed of a T-shaped sleeve 12 whose inner hole is a stepped hole and a signal connection pin 11, the left end of the signal connection pin 11 is an annular sleeve whose right end is sealed and which is adapted to a test plug 9 whose right end is a circular base of a male plug, the right end of the signal connection pin 11 is a connection plate which is integrated with the annular sleeve and is arranged on the right end face of the annular sleeve, the end of the connection plate at the right end of the signal connection pin 11 is of an arc structure, and a through hole is formed in the surface of the connection plate at the right end of the signal connection pin 11; the adapter 10 which is in adaptive connection with the test plug 9 is designed, the adapter can be used as a test meter pen to connect the test plug 9 with a test instrument for signal measurement, and can also be connected with an alligator clip or a telescopic probe hook type test meter pen by installing the adapter 10, so that the flexibility of a measurement mode is improved;

the sucker 2 and the meter pen body 7 are of an integrated structure made of insulating materials.

The specific working principle is as follows:

when the measurement is started, the test meter pen is held by hand and is pressed down against the surface of the measured object, the sucker 2 starts to deform under the action of external force, and the distance from the signal measuring probe 1 to the surface of the measured object is reduced; the test meter pen is continuously pressed, the deformation of the sucker 2 is continuously increased, the signal measuring probe 1 starts to be in contact with the surface of the object to be tested, the space inside the sucker is reduced, and the state is shown in figure 2; continuing to press the test meter pen, wherein the pressure generated by air compression in the sucker 2 forces the air inlet valve 4 to open, and the compressed air in the sucker 2 begins to be exhausted from the air outlet 3 of the air cylinder, the air inlet valve 4 and the air inlet 5 of the air cylinder; at this point the suction cup 2 has been pressed to the maximum deformation state, as shown in fig. 3; at this moment, the test pen pointer can not be pressed continuously, at this moment, the hand is loosened slowly, the air inlet valve 4 is closed under the elastic restoring force effect of the spring 8, the inside approximate vacuum state of the sucker 2 is realized, the outside of the sucker 2 is in a standard atmospheric pressure state, the atmospheric pressure difference inside and outside the sucker is the largest at this moment, the adsorption force of the sucker 2 is the largest, and at this moment, a test cable or the pen pointer can be utilized to connect a relevant instrument for signal measurement.

The technical scheme can be used for wired connection between a measuring cable and instrument equipment; can also be through installing the wireless signal module in test plug department, realize the wireless remote unmanned on duty monitoring sampling of signal, prolonged sucking disc 2's life when improving measurement simple operation nature and security, compact structure, good reliability, easy operation, suitability are strong.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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 description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. Instrument signal measurement pen-shape metre of push type sucker structure, its characterized in that: the gauge pen comprises a gauge pen body (7) with an annular cylindrical structure, wherein an electrical isolation grid (6) is arranged in the middle of the outer circumferential wall of the gauge pen body (7), a sucker (2) is arranged at the outer edge of the left end face of the gauge pen body (7), an air cylinder air inlet (5) communicated with the inside of the gauge pen body (7) and positioned on the left side of the electrical isolation grid (6) is formed in the outer circumferential wall of the gauge pen body (7), an annular groove positioned on the inner side of the sucker (2) is formed in the left end face of the gauge pen body (7), an air cylinder air outlet (3) communicated with the inside of the gauge pen body (7) is formed in the inner annular face of the annular groove, a linkage piston type valve body device with the right end fixed and the left end positioned between the air cylinder air outlet (3) and the air cylinder air inlet (5) is arranged in the gauge pen body (7), and under the action of the linkage piston type valve body device with the telescopic function at the left end, the air cylinder air outlet (3) is positioned and attached in the gauge pen body (7) The air outlet (3) of the air cylinder is communicated with the air inlet (5) of the air cylinder after being disconnected with the air inlet (5) of the air cylinder or being compressed and moved to the right by the left end of the linkage piston type valve body device; the utility model discloses a linkage piston valve body device, including pen-shape metre body (7), sucking disc (2) and linkage piston valve body device left end and meter pen body (7), the signal measurement probe (1) that the hole left end was equipped with the left end and stretched into in sucking disc (2) and the right-hand member and linkage piston valve body device left end fixed connection, under sucking disc (2) and the actuation of testee surface and linkage piston valve body device left end and the interior pore wall location laminating state of pen-shape metre body (7), on signal measurement probe (1) by with the surface contact of testee will detect signal conduction to linkage piston valve body device, linkage piston valve body device right-hand member is connected with measuring cable or crossover sub (10) of instrument and meter.

2. The instrument signal measuring pen with the pressing type sucker structure as claimed in claim 1, wherein: the linkage piston type valve body device comprises an air inlet valve (4), a spring (8) and a test plug (9), the air inlet valve (4) is of a T-shaped structure, the inner hole wall of the gauge pen body (7) is provided with a tapered hole which is positioned at the left side of the air inlet (5) of the air cylinder and connects the small-diameter inner hole at the left end with the large-diameter inner hole at the right end in a transition way, the big end of the air inlet valve (4) is provided with a conical ring surface matched with the conical hole wall of the gauge pen body (7), the left end of the air inlet valve (4) is fixedly connected with a signal measuring probe (1) with a spherical surface at the left end part, two ends of the spring (8) are respectively connected with the large-diameter end of the air inlet valve (4) and the left end of the test plug (9), the test plug (9) is of a T-shaped structure, the left end of the test plug (9) is fixed on the wall of the large-diameter inner hole of the meter pen body (7), and the right end of the test plug (9) is connected with a measuring cable or a conversion joint (10) of an instrument.

3. The apparatus signal measuring pen with pressing type sucker structure as claimed in claim 2, wherein: the air inlet valve (4) and the signal measuring probe (1) are of an integrated structure.

4. The apparatus signal measuring pen with pressing sucker structure as claimed in claim 3, wherein: crossover sub (10) are constituteed for T type cover (12) and signal connection pin (11) of shoulder hole by the hole, signal connection pin (11) left end is the annular cover that seals for the right-hand member that is the test plug (9) adaptation of public plug circular base with the right-hand member, and signal connection pin (11) right-hand member is the integral type structure and locates the connecting plate of annular cover right-hand member face for covering with the annular, system has the through-hole on signal connection pin (11) right-hand member connecting plate face for arc structure and signal connection pin (11) right-hand member connecting plate tip.

5. The apparatus signal measuring pen with suction cup structure as claimed in any one of claims 1 to 4, wherein: the sucker (2) and the meter pen body (7) are of an integrated structure made of insulating materials.