CN219535103U - Measurement line connection structure and measurement device - Google Patents
Measurement line connection structure and measurement device Download PDFInfo
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- CN219535103U CN219535103U CN202222881751.1U CN202222881751U CN219535103U CN 219535103 U CN219535103 U CN 219535103U CN 202222881751 U CN202222881751 U CN 202222881751U CN 219535103 U CN219535103 U CN 219535103U
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Abstract
The utility model provides a measuring circuit connecting structure and a measuring device, which comprise a first measuring connecting wire, and further comprise a switching part, wherein the switching part is electrically connected to the second end of the first measuring connecting wire, a limiting piece is in limiting connection with the first position of the limiting piece, the second position of the limiting piece is provided with a first limiting through hole in a limiting way, the first measuring connecting wire passes through the first limiting through hole, a clamping piece is clamped by the clamping piece and is positioned between the first position and the second position, the clamping piece cannot pass through the first limiting through hole, the tensile force or pulling trend transmitted by the measuring connecting wire is transmitted to the limiting piece through the matching structure of the measuring connecting wire, the clamping piece and the limiting piece, meanwhile, the switching part and the limiting piece have a follow-up relation, and the relative position relation between the measuring connecting wire and the switching part is always limited within a range, so that the tensile force cannot be transmitted to the electric connection position between the measuring connecting wire and the switching part, and the reliability of electric connection is maintained.
Description
Technical Field
The utility model relates to the technical field of measurement, in particular to a measurement circuit connection structure and a measurement device based on the measurement circuit connection structure.
Background
In the field measurement process of physical quantities such as pressure, temperature, humidity and the like, generally, a measurement probe is arranged at a position to be measured in an environment to be measured, a signal processing device such as a data acquisition device, a patrol instrument, a test host and the like is arranged outside the environment to be measured, the measurement probe and the signal processing device are electrically connected through a measurement connecting wire, in the working process, the measurement probe continuously performs measurement and generates a measurement signal representing a measurement result, the measurement signal reaches the signal processing device through the measurement connecting wire, the signal processing device processes the measurement signal to obtain measurement information, and then the measurement information is used for detection, calibration, verification and the like.
In general, the measurement connection line includes a wire core and a line protection layer, where the wire core is located at an axial center of the measurement connection line, and is a component for actually implementing electric signal transmission, and the line protection layer wraps the wire core in a circumferential direction, so as to protect the wire core portion, and in some cases, the measurement connection line may be formed by a plurality of sub-connection lines, and in general, the line protection layer is also disposed on an overall periphery of the sub-connection lines. In the working process, part of the measuring connecting wire and the measuring probe are arranged in the environment to be measured, and the environment to be measured in the industrial site can be in conditions of high temperature, high humidity, liquid and the like, so that the circuit protection layer needs to have the characteristics of non-sticking, high temperature resistance, corrosion resistance and the like, and the common circuit protection layer materials, such as polytetrafluoroethylene and the like, are materials in the prior art and can meet the requirements.
The characteristics of the aforementioned line protection layer bring problems to the connection and fixation of the measurement line, in particular in: in the manufacturing process, the measurement connecting wire and other measurement components, such as a measurement probe or a connector, are electrically connected in a welding mode and the like, and due to the characteristics of the circuit protection layer, the conventional fixing mode such as bonding and the like can not well fix the circuit protection layer and the other measurement components together, and only the fixing force can be provided by means of the electric connection position, so that the electric connection position is often influenced by the tension with variable magnitude in the subsequent use process, the electric connection position can be subjected to adverse changes such as movement and loosening, the accurate transmission of measurement signals is influenced, the service life of the measurement circuit is reduced, and the reliability of the electric connection position is reduced.
Disclosure of Invention
Aiming at the technical problems that in the prior art, a measuring circuit can be in tension at an electric connection position and the reliability of electric connection is reduced, the field measuring circuit connection structure and a measuring device based on the field measuring circuit connection structure are provided.
The on-site measurement circuit connection structure comprises a first measurement connection wire, wherein a first end of the first measurement connection wire is used for being electrically connected with a measurement device, and the on-site measurement circuit connection structure further comprises an adapter part, wherein the adapter part is electrically connected with a second end of the first measurement connection wire; the switching part is in limiting connection with a first position of the limiting part, a second position of the limiting part is provided with a first limiting through hole in a limiting mode, and a first measuring connecting wire penetrates through the first limiting through hole; the clamping piece clamps the first measurement connecting wire and is located between the first position and the second position, and the outer peripheral outline of the clamping piece is at least partially larger than the inner peripheral outline of the first limiting through hole, so that the clamping piece cannot pass through the first limiting through hole.
Preferably, the length of the first measurement connecting line between the adapter part and the clamping piece is a first line length, and the wiring distance between the first position and the second position is smaller than or equal to the first line length.
Preferably, the clamping piece is in limiting connection with a third position of the limiting piece, and the third position is located between the first position and the second position.
Preferably, the limiting part forms a limiting pipe at the third position, and the limiting pipe is at least partially filled with fixing glue, so that the clamping part is fixedly connected with the limiting part through the fixing glue.
Preferably, the third position is provided with a second limiting through hole in a limiting manner, the clamping piece is located between the second position and the third position, and the outer peripheral outline of the clamping piece is at least partially larger than the inner peripheral outline of the second limiting through hole, so that the clamping piece cannot pass through the second limiting through hole.
Preferably, the limiting piece is fixedly provided with at least one limiting bulge between the first limiting through hole and the second limiting through hole, and the limiting bulge is positioned on the rotating path of the clamping piece, so that when the clamping piece rotates relative to the limiting piece, the clamping piece is in limiting connection with the limiting bulge;
further preferably, the limiting protrusion forms at least two rotating limiting grooves in the limiting piece, the rotating limiting grooves are distributed or oppositely arranged along the circumferential direction of the limiting piece, at least two rotating limiting blocks are arranged on the clamping piece, and the rotating limiting blocks are adaptively inserted into the rotating limiting grooves;
Or, it is further preferable that the limiting member has a smaller inner diameter at the position of the limiting protrusion, at least one rotation limiting block is provided on the clamping member, and the clamping member has a larger outer diameter at the position of the rotation limiting block.
Preferably, the clamping piece is movably arranged between the first limiting through hole and the second limiting through hole, and the wiring distance between the first position and the third position is more than or equal to half of the first line length.
The utility model provides a field measurement device, includes measurement probe and signal terminal, and measurement probe is used for measuring the physical quantity, and the signal terminal is used for transmitting measurement signal, and the signal terminal is based on aforesaid measurement circuit connection structure electricity and is connected in measurement probe, and the first end electricity of first measurement connecting wire is connected in the signal terminal, and switching portion electricity is connected in measurement probe, and measurement probe spacing connection is in the locating part.
Preferably, the device further comprises a memory, the memory is fixedly arranged on the limiting piece or the measuring probe, the first measuring connecting wire comprises a first sub-signal wire and a second sub-signal wire, the memory is electrically connected to the first sub-signal wire, and the switching part is electrically connected to the second sub-signal wire.
The utility model provides a field measurement device, includes measurement probe and signal terminal, and measurement probe is used for measuring the physical quantity, and the signal terminal is used for transmitting measurement signal, and the aforesaid measurement circuit connection structure of measurement probe electricity is connected in the signal terminal, and the first end electricity of first measurement connecting wire is connected in measurement probe, and switching portion electricity is connected in the signal terminal, and signal terminal spacing connection is in the locating part.
Preferably, the device further comprises a memory, the memory is fixedly arranged on the limiting piece or the signal end, the signal end comprises a first signal interface and a second signal interface, the memory is electrically connected to the first signal interface, and the switching part is electrically connected to the second signal interface.
The beneficial effects are that:
through the cooperation structure of measurement connecting wire, holder and locating part, the pulling force or the pulling trend that will measure the connecting wire transmission transmit the locating part, simultaneously, changeover portion and locating part have follow-up relation, will measure the relative position relation between connecting wire and the changeover portion and always restrict in a within range to make the pulling force can not transmit the electric connection position between measurement connecting wire and the changeover portion, maintained the reliability of electric connection.
Drawings
Fig. 1 is an external schematic view of an exemplary field measurement line connection structure, the location of region a being marked in fig. 1.
Fig. 2 is a schematic cross-sectional view of an exemplary field measurement line connection structure of region a in the axial direction.
Fig. 3 is a schematic cross-sectional view of an exemplary stop member in an axial direction.
Fig. 4 is a schematic cross-sectional view in the axial direction of another example field measurement line connection structure of region a.
Fig. 5 is a schematic radial cross-sectional view of another example field measurement line connection structure in a third position of the stop.
Fig. 6 is a schematic radial cross-sectional view of another example field measurement line connection structure in a third position of the stop.
Fig. 7 is a schematic radial cross-sectional view of another example field measurement line connection structure in a third position of the stop.
FIG. 8 is an external schematic view of an exemplary field measurement apparatus.
Fig. 9 is a schematic diagram of an exemplary connection of field measurement devices.
Fig. 10 is a schematic diagram of the connection of another example field measurement apparatus.
Fig. 11 is a schematic diagram of the connection relationship of another example field measurement apparatus.
Fig. 12 is a schematic diagram of the connection relationship of another example field measurement apparatus.
Reference numerals:
100. the first measuring connecting wire, 110, a first sub-signal wire, 120, a second sub-signal wire, 200, a switching part, 210, a lead connector, 220, a memory, 300, a limiting piece, 310, a first position, 320, a second position, 330, a third position, 331, a limiting ring groove, 332, a limiting bulge, 333, a third limiting bulge, 334, a rotating limiting groove, 335, a limiting tube, 340, a second limiting elastic block, 341, a first limiting through hole, 350, a limiting ring, 351, a second limiting through hole, 400, a clamping piece, 410, a rotating limiting block, 500, a measuring probe, 510, a measuring sensor, 600, a signal end, 601, a first signal interface, 602, a second signal interface, 710, a data acquisition device, 720 and an upper computer.
Detailed Description
The following description of the present utility model will be based on embodiments, but the technical solution of the present utility model is not limited to these embodiments, and in the following detailed description of the technical solution, specific details are described in detail, it should be understood that these details are not limiting the scope of the present utility model, and it is also understood that the present utility model may be fully understood by those skilled in the art without descriptions of these details, and that these details are based on non-inventive modifications, obvious variations, alternatives of conventional technical means, etc.
In the description of the utility model, unless explicitly stated otherwise or as would be meaningless to one of ordinary skill in the art based on the relevant representations: the word "comprising" does not exclude other elements or steps; singular references do not exclude a plurality; the expressions "first XX", "second XX", etc. do not denote a defined number or a selected order, but rather are used to distinguish one from another functional entity in a homogeneous object, and at the same time, such distinction is mainly functional and does not involve distinguishing between specific entities, it will be understood by those skilled in the art that if the first, second, etc. entities are only independent of each other to solve a technical problem, the first, second, etc. in a solution denote different specific entities, and if part or all of the first, second, etc. entities may be used as one specific entity and as such to solve a technical problem, it is intended that the solution described in the present utility model includes such a case, and shall fall within the scope of the utility model; multiple structures, components, units may be implemented as a single entity where applicable.
The limit in the application aims to express a relative position relation on a structure, and comprises a fixed limit and an unfixed limit, wherein the fixed limit means that the relative position of each side of the limit relation is kept unchanged, the unfixed limit means that the relative position of each side of the limit relation can be changed, but the change is limited by the structural design so as to only move within the allowed range for solving the technical problem, and in some cases, the fixed limit and the unfixed limit can be combined so as to better solve the technical problem.
Detailed description of the preferred embodiments
A field measurement line connection structure for connection of a field measurement line, which means that the line is used for field measurement, including measurement of pressure, temperature, humidity, etc. not limited to an industrial site, as shown in fig. 1, 2, and 3, includes a first measurement connection line 100, a first end of which is used to electrically connect a measurement device, which means one of a measurement probe, a connector for transmitting a measurement signal, a signal processing device for processing a measurement signal, etc., or a combination thereof, so it is understood that the field measurement line connection structure may be used to constitute a field measurement device.
The field measurement line connection structure further includes an adapter 200, a stopper 300, and a holder 400.
The adaptor 200 is electrically connected to the second end of the first measurement connection wire 100, and the first end of the first measurement connection wire 100 and the second end of the first measurement connection wire 100 are different ends.
For example, the adaptor 200 may be a circuit board, a connector lug or other components capable of realizing electrical connection, and the electrical connection may be welding, or other prior art means capable of realizing electrical connection, and the adaptor 200 may have a certain signal or data processing capability, or may only play a role in signal transmission.
The stopper 300 includes a first position 310 and a second position 320, the first position 310 and the second position 320 being different positions with a certain distance therebetween.
The adaptor 200 is limitedly connected to the first position 310 of the limiter 300.
By way of example, the means for achieving a positive connection may be one or a combination of: for example, if the adapter 200 is a circuit board or is located on the circuit board, the adapter 200 is fixed at the first position 310, and the specific fixing manner may be one of the prior art fixing manners such as adhesive fixing, bolt fixing, and fastening fixing; for another example, the adaptor part 200 is a connector lug, the adaptor part 200 is electrically connected with the first measurement connecting wire 100 and another measurement component (for example, a measurement probe), and the other measurement component is fixed on the limiting piece 300 or has a part of structure and is integrated with the limiting piece 300, so that the relative fixation of the adaptor part 200 can be realized; for another example, the adapting portion 200 is limited to move in the first position 310, the limiting member 300 is provided with a limiting groove extending along the axial direction at the first position 310, and correspondingly, the adapting portion 200 includes a limiting protrusion, the limiting protrusion is inserted into the limiting groove, and the axial length of the limiting protrusion is smaller than that of the limiting groove, at this time, when the first measurement connecting wire 100 generates a tensile force, the first measurement connecting wire 100 drives the adapting portion 200 to move along the axial direction of the limiting member 300 through the electrical connection position until the limiting protrusion abuts against the limiting groove, and then the adapting portion 200 will not move continuously; for another example, the limiting member 300 is provided with an elastic member at the first position 310, one end of the elastic member is fixedly arranged at the first position 310, and the other end of the elastic member is fixedly arranged at the adapting portion 200, at this time, the adapting portion 200 can also move along the axial direction of the limiting member 300, but is limited by the length of the elastic member, and the moving distance is limited; it will be appreciated that other implementations of the prior art are not specifically illustrated herein for achieving a fixed or limited articulation of the adaptor 200 and the stop 300.
The second position 320 of the limiting member 300 is provided with a first limiting through hole 341 in a limiting manner, and the first limiting through hole 341 is used as a through hole, the first limiting through hole 341 penetrates out of the limiting member 300 from the second position 320, the inner diameter of the first limiting through hole 341 is equal to or larger than that of the first measuring connecting wire 100, and the first measuring connecting wire 100 penetrates through the first limiting through hole 341.
For example, there is a solid structure for forming the first limiting through hole 341, which may be a block with the first limiting through hole 341, a ring provided with the first limiting through hole 341, or a structure protruding inwards from the second position 320 of the limiting member 300, thereby forming a similar through hole, or other prior art structures, which will not be described in detail herein, it will be understood that the technical purpose of the so-called first limiting through hole 341 is to achieve limiting, and therefore, its equivalent technical features include similar structures capable of achieving the technical effect; for example, the stop 300 has at least two protrusions inwardly at the second position 320, with a certain gap between them, which gap may allow the first measurement connection wire 100 to pass through, but would prevent the larger clamping member from passing through, which gap should also be regarded as the first stop through hole 341; it can be further appreciated that the second limiting relationship is similar to the first limiting relationship, and includes both a fixed connection relationship and a limited movable connection relationship, which is different from the first limiting relationship, and the limiting relationship between the first limiting through hole 341 and the limiting member 300 is realized by forming a physical structure of the first limiting through hole 341 and the limiting connection relationship between the limiting member 300; it should be noted that, in some cases, the specific structure of forming the first limiting through hole 341 may be formed by the limiting member 300 entirely or partially, so that the first limiting through hole 341 may be a part of the limiting member 300 or may be formed by a relatively independent member.
For example, the limiting member 300 forms a cavity with a conical shape near the second position 320, an opening is formed at the cone head part of the conical cavity, the cone head part of the conical cavity is communicated with the inside and the outside of the limiting member 300, the cone bottom part of the conical cavity extends to the second position 320, the second limiting elastic block 340 is arranged at a position from the second position 320 to the opening, the outer circumferential contour of the second limiting elastic block 340 is adapted to the inner cavity contour of the limiting member 300, so that the second limiting elastic block 340 can be adaptively inserted into the cavity of the limiting member 300, and because the second limiting elastic block 340 has a certain elasticity, the free state contour of the second limiting elastic block 340 can be slightly larger than the inner cavity contour of the limiting member 300, based on the slightly larger adaptation, the second limiting elastic block 340 and the inner wall of the limiting member 300 can be detachably fixed by the elasticity of the second limiting elastic block 340, the middle part of the second limiting elastic block 340 is provided with a first limiting through hole 341, the first limiting through hole 341 is coaxial with the axial center of the limiting member 300, one end of the first limiting elastic block 340 is provided near the opening of the other end of the cavity of the limiting member 300.
The clamping member 400 clamps the first measurement connecting wire 100, and the position where the clamping member 400 clamps the first measurement connecting wire 100 is located between the first position 310 and the second position 320, and the outer circumferential profile of the clamping member 400 is at least partially larger than the inner circumferential profile of the first limiting through hole 341, so that the clamping member 400 cannot pass through the first limiting through hole 341.
Preferably, the length of the portion of the first measurement connection line 100 between the adaptor 200 and the holder 400 is a first line length, and the connection distance between the first position 310 and the second position 320 is less than or equal to the first line length.
For example, the clamping member 400 may be made of metal or other materials with a certain rigidity, so as to clamp the first measurement connection line, where the clamping member 400 may be implemented by any feasible technology in the prior art, for example, the clamping member 400 is made of two copper sheets, which are oppositely disposed on two sides of the first measurement connection line 100, and the two copper sheets are pressed and welded, so that the clamping of the first measurement connection line 100 between the two copper sheets can be implemented.
It should be noted that, according to the connection between the clamping member 400 and the limiting member 300, the clamping member 400 may be located at a fixed position between the first position 310 and the second position 320, if so, the clamping member 400 and the limiting member 300 may have a fixed connection (may be via a fixing medium), and if so, the clamping member 400 may not have a fixed connection with the limiting member 300, and if so, the clamping member 400 may be movable between the first position 310 and the second position 320, and no fixed position is available.
To maintain the relative position of the clamping member 400, on the one hand, since the first measurement connection wire 100 is electrically connected to the adaptor portion 200, the electrical connection relationship can limit the first measurement connection wire 100 from moving further beyond the adaptor portion 200, and the adaptor portion 200 is located at the first position 310, so that the clamping member 400 is also limited from moving further beyond the first position 310; on the other hand, the outer circumferential contour of the clip 400 is at least partially larger than the inner circumferential contour of the first limiting through hole 341, so that the clip 400 cannot pass through the first limiting through hole 341, specifically, at least partially larger than the inner circumferential contour of the first limiting through hole 341 including, but not limited to, one of which is that the outer circumferential contour of the clip 400 is completely larger than the inner circumferential contour of the first limiting through hole 341, the other of which is that the outer circumferential contour of the clip 400 partially exceeds the inner circumferential contour of the first limiting through hole 341, and the other of which is that the outer circumferential contour of the clip 400 has a certain change in the axial direction, at least one of the various change sections, and the outer circumferential contour of the clip 400 exceeds the inner circumferential contour of the first limiting through hole 341, and the above one to the fourth of which can be combined under the realizable conditions.
Based on the foregoing design, it can be appreciated that when the first measurement connecting wire 100 is pulled away from the limiting member 300, the clamping member 400 moves corresponding to the first limiting through hole 341, and gradually approaches, contacts or even partially overlaps, and when contacting or partially overlaps, the outer circumferential contour of the clamping member 400 is at least partially larger than the inner circumferential contour of the first limiting through hole 341, so that, at a second position or a region near the second position, the solid structure forming the first limiting through hole 341 is in force connection with the clamping member 400, thereby limiting the continued relative movement of the clamping member 400.
For example, the radial cross section of the first limiting through hole 341 is circular, correspondingly, the inner circumferential profile of the first limiting through hole 341 is circular with a relatively smaller radius, the radial cross section of the clamping member 400 is annular, correspondingly, the inner circumferential profile of the clamping member 400 corresponds to the outer circumferential profile of the first measurement connecting wire 100, that is, is smaller than the inner circumferential profile of the first limiting through hole 341, and the outer circumferential profile of the clamping member 400 is circular with a relatively larger radius (exceeding the radius of the first limiting through hole 341), so that when the clamping member 400 moves to the second position, the clamping member 400 contacts the second limiting elastic block 340, thereby being limited to continue moving.
The length of the portion of the first measurement connection line 100 between the adaptor 200 and the holder 400 is a first line length, and the connection distance between the first position 310 and the second position 320 is less than or equal to the first line length.
To achieve this technical effect, during the manufacturing process, the wiring distance between the first location 310 and the second location 320 may be determined first, set to l 2 The cavity formed by the stop 300 is a linearly extending cavity, and therefore, the wiring distance l 2 I.e., the linear distance between the first location 310 and the second location 320, in some cases, if the stop 300 forms a curved or otherwise non-linearly extending cavity, the wire connection distance corresponds to the minimum length that a wire connection is achievedDegree, in determining l 2 Thereafter, a first line length l may be determined 1 In some examples, a first line length l 1 Not a length value which has to be strictly adhered to, but a length range, i.e. l 1 ≥l 2 。
In operation, the two ends of the measuring line connection structure may be connected to different measuring components or devices, respectively, and when one measuring process is completed to replace the next measuring process or the measurement is completed, if the first measuring connection line 100 is pulled at or near the end B, the pressure will be transmitted along the first measuring connection line 100 until reaching the position of the clamping member 400, and the clamping member 400 is driven to move in a direction approaching the second limiting elastic block 340, at this time, due to l 1 ≥l 2 Thus, the pulling force can only pull out the redundant first measuring connection line 100 between the first position 310 and the second position 320, without transmitting the pulling force to the adapter 200, and subsequently, due to l 1 ≥l 2 Before or while the first measurement connection wire 100 between the first position 310 and the second position 320 is pulled, the clamping member 400 contacts the second limiting elastic block 340, from which, if the first measurement connection wire 100 is pulled continuously at or near the end B, the pulling force is transmitted to the limiting member 300 through the contact position of the clamping member 400 and the second limiting elastic block 340 when reaching the clamping member 400, and further the limiting member 300 is directly driven to move, and since the switching portion 200 is limited at the first position of the limiting member 300, the limiting member 300 drives the switching portion 200 to move, and therefore the pulling force generated at or near the end B is not transmitted to the electrical connection position between the switching portion 200 and the first measurement connection wire 100, and the electrical connection position is not affected by the pulling force, thereby ensuring the stability and reliability of the electrical connection and improving the service life of the whole measurement circuit.
It should be understood that, although the structure of the measurement connection line is described in the background art, this description is not meant to limit the solution of the present application, and specifically, based on the innovative concept of the present application, the first measurement connection line 100 may also be in one or a combination of several forms:
First, the first measurement connecting wire 100 is composed of a signal wire, and then the first measurement connecting wire 100 comprises a wire core and a circuit protection layer, the circuit protection layer has the characteristic of being difficult to fix, and the clamping piece 400 is clamped on the first measurement connecting wire 100 from outside the circuit protection layer;
the second, the first measurement connection line 100 includes at least two parallel sub-signal lines, the first sub-signal line and the second sub-signal line, at least the first sub-signal line has a first sub-line core and a first sub-line protection layer wrapping the first sub-line core, possibly, the total line protection layer is not stripped at the position of the clamping piece 400, the clamping piece 400 is clamped on the first measurement connection line 100 from the outside of the total line protection layer, and possibly, the total line protection layer is stripped, at this time, at least one of the exposed sub-line protection layer and/or the sub-line core still has a characteristic of being difficult to fix, and then the clamping piece 400 clamps each sub-signal line together;
thirdly, a certain section of the measurement connection line 100 includes at least two sub-signal connection lines, wherein at least one sub-signal connection line has a characteristic of being difficult to fix, and the clamping member 400 only clamps the sub-signal connection line, if so, the sub-signal connection line is regarded as the first measurement connection line 100.
Second embodiment
The present embodiment is used to improve the first embodiment, and therefore, in the process of understanding the present embodiment, it should be understood in conjunction with all or part of the content of the first embodiment, and only the technical solution with differences will be described with emphasis on the present embodiment.
It can be understood that, as an improvement scheme, the present embodiment has a better technical effect, and from the aspect of solving the technical problem of the prior art, the first embodiment can be implemented independently to solve the technical problem, and can also be combined with the present embodiment to solve the technical problem.
In implementing an embodiment, it is found that, in some cases, the first measurement connection wire 100 may be made of a relatively hard material (not easy to deform or having a strong tendency to recover after deformation), and in other cases, the electrical connection position between the first measurement connection wire 100 and the adaptor 200 may be relatively sensitive to the pushing force, and if the first measurement connection wire 100 is excessively stacked between the first position 310 and the second position 320, the reliability of the electrical connection position may be affected.
A solution to the foregoing technical problem is provided, and the description of the solution is made with reference to fig. 1 and 4, in which the clamping member 400 is limitedly connected to the third position 330 of the limiting member 300, and the third position 330 of the limiting member 300 is located between the first position 310 and the second position 320 thereof.
For example, the clamping member 400 and the third position 330 of the limiting member 300 may be directly fixed by welding, bonding, screw fixing, or other fixing methods in the prior art, at this time, the clamping member 400 and the third position 330 are in contact, and in this implementation manner, generally, the third position 330 is adjacent to the first position 310, in subsequent operations, if the first measurement connecting wire 100 is pulled toward the B end, the clamping member 400 directly transmits the pulling force to the limiting member 300 by means of the fixed connection of the first limiting through hole 341 and the third position 330, so that the adaptor 200 is driven to move together by the limiting member 300, if the first measurement connecting wire 100 is pushed to one end, the clamping member 400 directly transmits the pushing force to the limiting member 300 by means of the fixed connection of the third position 330, so that the adaptor 200 is driven to move together by the limiting member 300, and finally, no stress is generated in any way, and in the relative position between the clamping member 400 and the adaptor 200, the electrical connection position between the first measurement connecting wire 100 and the adaptor 200 is not changed, so that the protection of the electrical connection position is realized.
As another example, the limiting member 300 forms a cavity with two open ends in the axial direction and closed or semi-closed in the circumferential direction at the third position 330, and is filled with glue or other filler near the third position 330, the filler may have viscosity, and the filler fills the space between the third position 330 and the clamping member 400, so as to limit the clamping member 400, and at this time, the limiting connection is realized through a certain medium, and is not in contact connection.
For example, if the blocking structure surrounds the clamping member 400 in all directions and no moving space is left, the blocking structure actually realizes the fixation between the clamping member 400 and the limiting member 300, and if the blocking structure leaves a certain moving space, or if the blocking structure does not have a certain moving space in some directions, the clamping member 400 can perform a certain movement relative to the limiting member 300, but when the limiting member 300 wants to move beyond or separate from the third position 330 continuously, the clamping member 400 is blocked by the limiting connection, so that the clamping member cannot move continuously, thereby realizing the protection of the electric connection position.
In relation to the foregoing example cases, a relatively preferred modification is provided, in which, referring to fig. 1 and 4, the third position 330 is provided with a second limiting through hole 351 in a limiting manner, and the clamping member 400 is located between the second position 320 and the third position 330, and the outer circumferential contour of the clamping member 400 is at least partially larger than the inner circumferential contour of the second limiting through hole 351, so that the clamping member 400 cannot pass through the second limiting through hole 351.
For example, the second limiting through hole 351 is formed by a limiting ring 350, the limiting ring 350 is made of a material with a certain elasticity, and correspondingly, the limiting member 300 is provided with a limiting ring groove 331 at one position of the third position 330, the limiting ring groove 331 means that the groove body extends along the annular direction, the groove bottom of the limiting ring groove 331 forms a ring with a larger diameter, the notch of the limiting ring groove 331 forms a pair of rings with a smaller diameter, the ledge position of the limiting ring groove 331 forms a limit for other structures in the groove, the peripheral outline of the limiting ring 350 is larger than the ring formed by the notch of the limiting ring groove 331, and can be slightly larger than, equal to or smaller than the ring formed by the groove bottom of the limiting ring groove 331, when in installation, the limiting ring 350 is arranged in the limiting ring groove 331, during operation, due to the adapting structure between the limiting ring 350 and the limiting ring groove 331, the stop collar 350 can only move or be fixed in the stop collar groove 331, so as to realize the stop setting of the second stop collar 351, and subsequently, if the first measurement connecting wire 100 is pushed to move towards one end of the measurement line connecting structure at or near the end B of the measurement line connecting structure, the clamping member 400 will continue to move towards the adaptor 200, when the clamping member 400 moves to near the second stop collar groove 351, it will contact with the stop collar 350 forming the second stop collar 351, because the stop collar 350 is limited in the stop collar groove 331, the stop collar 350 cannot continue to move towards the adaptor 200, and will prevent the clamping member 400 from continuing to move towards the adaptor 200, but is limited to the third position 330, and can only drive the stop member 300 to move together, the first measurement connecting wire 100 between the second stop collar 351 and the adaptor 200 will not continue to increase, thereby achieving protection of the electrical connection location at the adapter 200.
As another example, there may be other deformation structures for forming the second limiting through hole 351, for example, referring to fig. 5, the limiting member 300 is provided with a plurality of second limiting protrusions 332 at one position of the third position 330, the bottom of the second limiting protrusion 332 is fixed on the inner side wall of the third position 330 of the limiting member 300, the protruding direction of the second limiting protrusion 332 points to the axial center of the limiting member 300, and three protrusions shown in the drawing may be implemented in a manner that two protrusions, or more protrusions, are distributed (preferably uniformly distributed) along the circumferential direction of the limiting member 300, and are located on the same axial plane of the limiting member 300, so that the top ends of the second limiting protrusions 332 enclose the second limiting through hole 351, and it may be understood that when the clamping member 400 moves near the second limiting through hole 351, the clamping member 400 is blocked by the second limiting protrusion 332 and is limited to the third position 330, and then only the limiting member 300 is driven to move together when the clamping member is required to continue to move, so that the first connecting wire 100 cannot continue to be added between the second limiting through hole 351 and the adapter 200, and the first connecting position 100 is protected.
In the implementation of the foregoing solution, it has further been found that in some cases, the first measurement connection wire 100 may also rotate relative to the adapter 200, and in some cases, if such relative rotation occurs excessively, the electrical connection position between the two may be affected by the rotation moment, which reduces the reliability.
A solution is provided for the foregoing technical problem, and a second improvement is shown in fig. 6 and 7, in which, at least one limiting protrusion 333 (for distinguishing from the preceding second limiting protrusion 332, the limiting protrusion 333 is denoted by a third limiting protrusion 333 subsequently) is fixed between the second position 320 and the second limiting through hole 351 of the limiting member 300, and the third limiting protrusion 333 is located on the rotation path of the clamping member 400, so that, when the clamping member 400 rotates relative to the limiting member 300, the clamping member 400 is in limiting connection with the third limiting protrusion 333.
As shown in fig. 6, the third limiting protrusion 333 and the inner side wall of the limiting member 300 form at least two rotation limiting grooves 334, as shown in the drawing, when there are only two rotation limiting grooves 334, the two rotation limiting grooves 334 should be disposed opposite or as far as possible opposite, when there are more rotation limiting grooves 334, these rotation limiting grooves 334 can be distributed along the circumferential direction of the limiting member 300, the third limiting protrusion 333 forms a ledge of the rotation limiting groove 334, the inner side wall of the limiting member 300 forms a groove bottom of the rotation limiting groove 334, the notch of the rotation limiting groove 334 is directed at the axial center of the limiting member 300, the first measurement connecting wire 100 and the limiting member 300 are coaxial, two oppositely disposed rotation limiting blocks 410 are formed after the clamping member 400 clamps the first measurement connecting wire 100, the rotation limiting blocks 410 and the rotation limiting grooves 334 are adapted, at this moment, no matter when there is clockwise rotation trend of the clamping member 400, the third limiting protrusion 333 is located on the rotation path of the rotation limiting blocks 410 exactly, when the clamping member 400 rotates relative to the limiting member 300 (when there is a rotation trend of clockwise rotation trend), the first measurement connecting wire 100 and the third limiting protrusion is not connected with the first rotation limiting member 300, the rotation limiting member is prevented from rotating by the same rotation moment, the first measurement connecting wire 100 and the second measurement connecting wire 300 is not connected with the first rotation limiting member 300, and the first rotation limiting member 300 is prevented from rotating by the rotation limiting member, and the rotation limiting member is prevented from rotating by the first rotation limiting protrusion, and the first rotation limiting protrusion is prevented from rotating the rotation limiting protrusion and the rotation limiting protrusion.
The arrangement positions of the rotation limiting groove 334 and the rotation limiting block 410 in the foregoing example may be reversed, for example, the rotation limiting groove 334 is located on the clamping member 400, the rotation limiting block 410 is located on the limiting member 300, and similar limiting effects may be achieved through the adaptive connection of the rotation limiting block 410 and the rotation limiting groove 334, it may be understood that there may be at least one or three or more adaptations of the rotation limiting groove 334 and the rotation limiting block 410, and an effect similar to the fixing may be achieved through such an adaptive relationship, so that the first measurement connection wire 100 and the adapter 200 cannot relatively rotate, or can relatively rotate only within a small angle.
As another example, as shown in fig. 7, in some cases, the third limiting protrusion 333 may have at least one rotation limiting block 410, where the clamping member 400 is provided with at least one rotation limiting block 410, and the third limiting protrusion 333 and the rotation limiting block 410 have no corresponding relationship in number, including one to many, many to one, the same number of many to many or many to one, etc., where the limiting member 300 has a smaller inner diameter at the position of the third limiting protrusion 333, the clamping member 400 has a larger outer diameter at the position of the rotation limiting block 410, and as shown, when the first measuring connection wire 100 rotates counterclockwise or clockwise relative to the limiting member 300, the rotation limiting block 410 may rotate up to 360 ° (because both the rotation limiting block 410 and the third limiting protrusion 333 have protrusions, therefore, after the rotation of 360 ° is impossible, the rotation limiting block 410 contacts with the third limiting protrusion 333 on the rotation path, since the inner diameter of the limiting member 300 at the third limiting protrusion 333 is smaller, and the outer diameter of the corresponding clamping member 400 at the rotation limiting block 410 is larger, subsequently, if the first measurement connecting wire 100 continues to rotate, the switching portion 200 is driven to rotate along with the rotation limiting block 410, the third limiting protrusion 333, the limiting member 300 and the switching portion 200 through the stress transmission relationship among the clamping member 400, the rotation limiting block 410, the switching portion 200, so that the first measurement connecting wire 100 and the switching portion 200 cannot excessively rotate relatively, and the reliability of the electrical connection can be ensured under the condition that the electrical connection position and the connection strength are preset.
For each example of the present embodiment and its modification, a third modification is to refer to fig. 4, in which a certain distance is provided between the second limiting through hole 351 and the first limiting through hole 341, and this distance is providedExceeding the axial length of the clamping member 400, the clamping member 400 is movable between the first and second limiting through holes 341, 351, i.e. the clamping member 400 is movably arranged between the second and third positions 320, 330, limiting the actual linear length of the first and third positions 310, 330, in particular, the wire connection distance l of the first and second positions 310, 320 can be determined according to the structural shape of the limiting member 300 during the mounting phase, without additional axial fixation 2 The wiring distance l of the first location 310 and the third location 330 can also be determined 3 Since the third position 330 is located between the first position 310 and the second position 320, l 3 <l 2 Based on l 2 And l 3 Can be applied to the first line length l 1 I.e. the length of the first measuring link 100 between the holder 400 and the adapter 200 is designed to be 2l 3 ≥l 1 ≥l 2 I.e. first line length l 1 Should have a certain length, i.e./ 1 ≥l 2 But not too long, i.e. 2l 3 ≥l 1 I.e. l 3 ≥l 1 It should be noted that the first line length l 1 The limitation of the range here not only limits the clamping position of the clamping element 400, but also influences the design of the limiting element 300, i.e. 2l is required when designing the first position 310, the second position 320 and the third position 330 on the limiting element 300 3 ≥l 2 。
For each example of the present embodiment and its modification, there may be a modification fourth, referring to fig. 2, 3 and 4, in which the limiting member 300 forms a limiting tube 335 at the third position 330, and the limiting tube 335 is at least partially filled with a fixing adhesive, so that the clamping member 400 is adhered and fixed to the inner side of the limiting tube 335.
For example, the limiting tube 335 is a tubular structure with two open ends in the axial direction and closed in the circumferential direction, and is a part of the limiting member 300, in some cases, the limiting tube 335 may be open in the circumferential direction and may have a partial area, meanwhile, the limiting tube 335 may be a tubular structure extending linearly, may be a tubular structure extending in a curve and having a certain angle, or may be a tubular structure with other shapes, the fixing glue may be filled between the first limiting through hole 341 and the second limiting through hole 351, or may be located only in the area between the clamping member 400 and the first limiting through hole 341, at this time, although the first measurement connecting wire 100 cannot be limited by the fixing glue, the clamping member 400 may have an adhesive relationship with the fixing glue, and the clamping member 400 may be fixed on the inner side of the limiting tube 335 by means of the fixing glue, and is fixed by means of the adhesive of the fixing glue, if there is a large tensile force, the tensile force is transmitted to the vicinity of the first limiting through hole 341 through the extrusion of the fixing glue, the transmission of the tensile force can be assisted by the first limiting through hole 341, and the adhesion force of the fixing glue is not needed to be excessively fixed, on the other hand, the structural member forming the second limiting through hole 351 can be omitted because the clamping member 400 can be prevented from approaching the transferring part 200 by the adhesion force of the fixing glue, if so, the third position 330 of the clamping member 400 in limiting connection with the limiting member 300 is realized by the adhesion force of the fixing glue, of course, the existence of the second limiting through hole 351 and the structural member thereof can be maintained, at this time, the second limiting through hole 351 plays a role of protecting the fixing glue more, and on the other hand, the existence of the structures such as the rotation limiting block 410, the third limiting protrusion 333 and the like can be omitted because of the existence of the fixing glue, because the adhesive force of the fixing glue can prevent the rotation of the clamping member 400.
Detailed description of the preferred embodiments
The present embodiment is implemented based on the foregoing first embodiment, or the second embodiment, or a combination of the first embodiment and the second embodiment, so in understanding the present embodiment, it should be understood that the foregoing first embodiment and/or the second embodiment should be combined, and only the technical solutions that are different will be described in this embodiment with emphasis.
Referring to fig. 8, 9 and 10, the present embodiment provides a field measurement device, which includes a measurement probe 500 and a signal end 600, wherein the measurement probe 500 is used for measuring a physical quantity, the signal end 600 is used for transmitting a measurement signal, the signal end 600 is electrically connected to the measurement probe 500 based on the measurement line connection structure of the first embodiment and/or the second embodiment, the first end of the first measurement connection line 100 is electrically connected to the signal end 600, the adapter 200 is electrically connected to the measurement probe 500, and the measurement probe 500 is in limiting connection with the limiting member 300.
By way of example, the measuring probe 500 comprises a measuring sensor 510, a sensor housing (not shown in the figures) for fixing and protecting the measuring sensor 510, and a limiting member 300 adapted to the measuring sensor 510, wherein the sensor housing and a housing portion of the limiting member 300 are fixed, so that the measuring probe 500 is in limiting connection with the limiting member 300, an adapter 200 is fixedly arranged in the limiting member 300, a plurality of lead connectors 210 are led out from the adapter 200, and one or more of the lead connectors 210 are electrically connected to the measuring sensor 510, thereby realizing the electrical connection between the measuring sensor 510 and the adapter 200. The signal terminal 600 may be a connector with a universal connector, and the connector is connected to the host computer 720 through a signal. It will be appreciated that in some cases, the measurement sensor 510 may be wholly or partially incorporated into the structure of the stop 300, or the stop 300 may be integrally formed with the sensor housing, or the relevant structure of the stop 300 may be directly formed in the sensor housing, if so, the limited attachment of the measurement probe 500 to the stop 300 includes wholly or partially integral aspects of the measurement probe 500 and the stop 300.
The measuring line connection structure, including the first measuring connection line 100, the limiting member 300, the adapter 200, and the fixed connection structure therebetween, is described with reference to the first embodiment and/or the second embodiment and the description of fig. 1 to 7 of the drawings, and is not repeated here.
In the working process, the measurement sensor 510 measures the physical quantity to be measured, generates a measurement signal, the measurement signal is transmitted to the switching part 200 through the lead connector 210, the measurement signal is transmitted to the first measurement connecting wire 100 from the switching part 200, the measurement signal is transmitted to the signal end 600 from the first measurement connecting wire 100, and then is transmitted to the upper computer 720 from the signal end 600, and the upper computer 720 processes the obtained measurement information.
After the work is finished, the signal end 600 or the first measurement connecting wire 100 nearby the signal end is pulled, the pulling force can be transmitted along the first measurement connecting wire 100 until the pulling force reaches the vicinity of the limiting piece 300, in the limiting piece 300, the pulling force drives the clamping piece 400 to move towards the direction of the first limiting through hole 341, when the clamping piece 400 reaches the first limiting through hole 341, the clamping piece 400 and the first limiting through hole 341 form stressed connection in the pulling force direction, the pulling force can be directly transmitted to the limiting piece 300, so that the moving trend is also transferred to the limiting piece 300, the transfer part 200 is influenced and follows by the limiting piece 300, the relative position relationship between the clamping piece 400 is unchanged, the electric connection position between the first measurement connecting wire 100 and the transfer part 200 is always in an unstressed state, and the safety of the electric connection position is protected.
Further improvements to the foregoing may include a field measurement device further including a memory 220, where the memory 220 is fixedly disposed on the limiting member 300 or the measurement probe 500. The first measurement connection line 100 includes a first sub-signal line 110 and a second sub-signal line 120, the memory 220 is electrically connected to the first sub-signal line 110, and the adaptor 200 is electrically connected to the second sub-signal line 120.
For example, in some cases where the memory 220 is secured within a cavity formed by the stop 300, and in other cases where the memory 220 is secured within a cavity formed by the measurement probe 500, calibration information for the field measurement device may be stored in the memory 220. The signal terminal 600 has a first signal interface 610 and a second signal interface 620, where the first signal interface 610 is used for transmitting digital signals, the second signal interface 620 is used for transmitting analog electrical signals, the corresponding first measurement connection line 100 includes a first sub-signal line 110 for transmitting digital signals, and a second sub-signal line 120 for transmitting analog signals, the memory 220 is connected to the first signal interface 610 through the first sub-signal line 110, the adapter 200 is connected to the second signal interface 620 through the second sub-signal line 120, the upper computer 720 is connected to the first signal interface 610 and the second signal interface 620, respectively, the upper computer 720 reads calibration information from the memory 220 through the first signal interface 610, the upper computer 720 reads measurement signals from the measurement sensor 510 through the second signal interface 620, the upper computer 720 processes the measurement signals to obtain measurement results before compensation, processes the measurement results before compensation by using the calibration information to obtain measurement results after compensation, the calibration deviation is eliminated, and the accuracy of the measurement results is improved.
The signal terminal 600 has an analog-to-digital conversion circuit, or the digital signal is output by the measurement probe 500, or the field measurement device uses a duplex mode to perform signal transmission, so that the first signal interface 610 and the second signal interface 620 may be integrated, or the same signal interface.
Detailed description of the preferred embodiments
The present embodiment is implemented based on the foregoing first embodiment, or the second embodiment, or a combination of the first embodiment and the second embodiment, so in understanding the present embodiment, it should be understood that the foregoing first embodiment and/or the second embodiment should be combined, and only the technical solutions that are different will be described in this embodiment with emphasis.
It can be understood that, since the present embodiment and the third embodiment are intended to protect different portions of the entire field measurement apparatus, according to practical situations, the present embodiment and the third embodiment are not mutually exclusive, but may be independent of each other to solve the technical problem, or may be combined to solve the technical problem.
Referring to fig. 1, 4, 11 and 12, the present embodiment provides a field measurement device, which includes a measurement probe 500 and a signal end 600, the measurement probe 500 is used for measuring a physical quantity, the signal end 600 is used for transmitting a measurement signal, the measurement probe 500 is electrically connected to the signal end 600 based on the measurement line connection structure in the first embodiment and/or the second embodiment, the first end of the first measurement connection line 100 is electrically connected to the measurement probe 500, the adapter 200 is electrically connected to the signal end 600, and the signal end 600 is limitedly connected to the limiter 300.
For example, the signal terminal 600 is electrically connected to one or more of the plurality of lead connectors 210, and a user may select a signal transmission object of the signal terminal 600 according to needs, for example, may select an air plug connector as the signal terminal 600 or a part of the signal terminal 600, electrically connect the lead connector 210 with the air plug connector, fix the housing of the air plug connector with the housing of the limiting member 300, or may select the data collector 710 as a signal receiving object of the signal terminal 600, and plug the air plug connector into a measurement channel of the data collector 710, thereby completing the combination; it will be appreciated that the limited connection of the signal terminal 600 to the limiting member 300 includes such situations: the avionics connector and other structures may be omitted or integrally formed with the stop 300, and the signal terminal 600 and stop 300 may be all or partially integrated.
As another example, the measurement probe 500 may be a temperature probe, a humidity probe, a pressure probe, or other types of probes for measuring physical quantities in the field, and when a plurality of probes may be connected and arranged, the types of physical quantities measured by the respective measurement probes may be the same or different.
The measuring line connection structure, including the first measuring connection line 100, the limiting member 300, the adapter 200, and the fixed connection structure therebetween, is described with reference to the first embodiment and/or the second embodiment and the description of fig. 1 to 7 of the drawings, and is not repeated here.
In the working process, the measurement probe 500 measures the physical quantity to be measured, generates a measurement signal, the measurement signal is transmitted through the first measurement connecting wire 100, reaches the switching part 200, is transmitted from the switching part 200 to the lead connector 210, is transmitted from the lead connector 210 to the aviation connector, is transmitted from the aviation connector to the data collector 710, and the data collector 710 processes the measurement signal and stores the measurement information obtained by the processing.
After the work is completed, the measuring probe 500 or the first measuring connecting wire 100 nearby the measuring probe is pulled, the pulling force is transmitted along the first measuring connecting wire 100 until reaching the vicinity of the limiting piece 300, and in the limiting piece 300, the pulling force drives the clamping piece 400 to move towards the direction of the first limiting through hole 341 firstly, and the first wire length l is due to 1 Exceeding the wiring distance l between the adapter 200 and the clip 400 2 I.e. first line length l 1 At a wiring distance l 2 There is a margin in the interior, so that the tension force will not be continuously transmitted to the adapter 200 through the clamping member 400, and then, when the clamping member 400 reaches the first limiting through hole 341, the clamping member 400 and the first limitThe first limiting through hole 341 is a part of the limiting piece 300 or is in limiting arrangement with the limiting piece 300, so that the pulling force can be directly transmitted to the limiting piece 300, at this time, the relative position relationship between the adapter part 200 and the clamping piece 400 is unchanged because the limiting piece 300 is stressed, the pulling force can not be transmitted to the electric connection position between the adapter part 200 and the first measuring connecting wire 100, and the shell of the avionics connector is fixed to the shell of the limiting piece 300, so that the avionics connector can be stressed along with the connecting wire, and further, if the pulling force is smaller than the bearing force between the avionics connector and the data collector 710, the data collector 710 can be driven to move along with the connecting wire, if the data collector 710 is fixed at a certain position, the moving trend is not transferred to the limiting piece 300, the pulling force is allowed to be gradually increased, and when the pulling force exceeds the bearing force between the avionics connector and the data collector 710, the avionics connector can be directly pulled down; in the above process, the electrical connection position between the first measurement connection wire 100 and the adapter 200 is always in an unstressed state, thereby protecting the safety of the electrical connection position.
Further improvements to the foregoing solutions may include a field measurement device further including a memory 220, where the memory 220 is fixedly disposed on the signal end 600 or the limiting member 300. The signal terminal 600 includes a first signal interface 610 and a second signal interface 620, the memory 220 is electrically connected to the first signal interface 610, and the adaptor 200 is electrically connected to the second signal interface 620.
Specifically, referring to fig. 2 and 8, the memory 220 is fixedly disposed in the cavity formed by the limiting member 300, in other cases, the memory 220 may also be fixedly disposed in the cavity formed by the signal end 600, calibration information of the field measurement device may be stored in the memory 220, during operation, the data collector 710 is connected to the lead connector 210 and the first signal interface 610 and the second signal interface 620 electrically, before, after or simultaneously with reading the measurement signal (from the measurement probe 500), the data collector 710 reads the calibration information from the memory 220, and compensates the information represented by the measurement signal by using the calibration information, and finally the measurement information stored in the data collector 710 is the information after the compensation process, thereby ensuring the accuracy of the measurement result.
In some cases, the adaptor 200 has an analog-to-digital conversion circuit, or the measurement probe 500 outputs a digital signal, or the field measurement device uses a duplex mode to perform signal transmission, the memory 220 may be electrically connected to the adaptor 200, and then electrically connected to the first signal interface 610 through the adaptor 200, where the first signal interface 610 and the second signal interface 620 may be integrated, or the same signal interface.
The foregoing description of the preferred embodiments of the application is illustrative only, and there can be numerous changes and modifications to the application herein before described, and it is contemplated that the application will fall within the spirit and scope of the application.
Claims (10)
1. A measuring line connection structure comprising a first measuring connection line, a first end of which is used for electrically connecting a measuring device, characterized in that,
the switching part is electrically connected to the second end of the first measurement connecting wire;
the switching part is in limiting connection with a first position of the limiting part, a first limiting through hole is formed in a second position of the limiting part in a limiting mode, and the first measuring connecting wire penetrates through the first limiting through hole;
the clamping piece is used for clamping the first measuring connecting wire and is positioned between the first position and the second position, and the outer circumferential profile of the clamping piece is at least partially larger than the inner circumferential profile of the first limiting through hole, so that the clamping piece cannot pass through the first limiting through hole.
2. The measurement line connection structure according to claim 1, wherein a length of the first measurement connection line between the adapter and the holder is a first line length, and a wiring distance between the first position and the second position is less than or equal to the first line length.
3. The measurement line connection structure according to claim 1 or 2, wherein the clip member is limitedly connected to a third position of the limiter member, the third position being located between the first position and the second position.
4. The measurement circuit connection structure according to claim 3, wherein the limiting member forms a limiting tube at the third position, and the limiting tube is at least partially filled with a fixing adhesive, so that the clamping member is fixedly connected to the limiting member through the fixing adhesive.
5. A measurement line connection as defined in claim 3, wherein the third position is provided with a second limiting through hole, the clamping member is located between the second position and the third position, and an outer peripheral contour of the clamping member is at least partially larger than an inner peripheral contour of the second limiting through hole, so that the clamping member cannot pass through the second limiting through hole.
6. The measurement circuit connection structure according to claim 5, wherein the limiting member has at least one limiting protrusion fixed between the first limiting through hole and the second limiting through hole, the limiting protrusion being located on a rotation path of the clamping member, such that the clamping member and the limiting protrusion are in limiting connection when the clamping member rotates relative to the limiting member;
The limiting protrusion forms at least two rotating limiting grooves in the limiting piece, the rotating limiting grooves are distributed along the circumferential direction of the limiting piece or are oppositely arranged, at least two rotating limiting blocks are arranged on the clamping piece, and the rotating limiting blocks are adaptively inserted into the rotating limiting grooves; or, the limiting piece is provided with a smaller inner diameter at the position of the limiting protrusion, the clamping piece is provided with at least one rotation limiting block, and the clamping piece is provided with a larger outer diameter at the position of the rotation limiting block.
7. The measurement line connection structure according to claim 1, wherein a length of the first measurement connection line between the adapter and the holder is a first line length;
the clamping piece is in limiting connection with a third position of the limiting piece, and the third position is located between the first position and the second position;
the third position is provided with a second limiting through hole in a limiting way;
the clamping piece is movably arranged between the first limiting through hole and the second limiting through hole, and the wiring distance between the first position and the third position is greater than or equal to half of the first line length.
8. The utility model provides a measuring device, includes measurement probe and signal terminal, measurement probe is used for measuring the physical quantity, signal terminal is used for transmitting measurement signal, its characterized in that, the signal terminal based on the measurement circuit connection structure of any one of claims 1-6 electrically connect in measurement probe, first end of first measurement connecting wire electrically connect in signal terminal, switching portion electrically connect in measurement probe, measurement probe spacing connect in the locating part.
9. The measurement device of claim 8, further comprising a memory, wherein the memory is fixedly arranged on the limiting member or the measurement probe, the first measurement connecting line comprises a first sub-signal line and a second sub-signal line, the memory is electrically connected to the first sub-signal line, and the switching portion is electrically connected to the second sub-signal line.
10. A measuring device comprising a measuring probe and a signal end, wherein the measuring probe is used for measuring physical quantities, the signal end is used for transmitting measuring signals, and the measuring probe is electrically connected to the signal end based on the measuring line connecting structure according to any one of claims 1-7, a first end of a first measuring connecting line is electrically connected to the measuring probe, the switching part is electrically connected to the signal end, and the signal end is in limiting connection with the limiting piece;
The device also comprises a memory, the memory is fixedly arranged on the limiting piece or the signal end, the signal end comprises a first signal interface and a second signal interface, the memory is electrically connected with the first signal interface, and the switching part is electrically connected with the second signal interface.
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| CN202222881751.1U CN219535103U (en) | 2022-10-31 | 2022-10-31 | Measurement line connection structure and measurement device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116960412A (en) * | 2023-09-18 | 2023-10-27 | 中国科学院宁波材料技术与工程研究所 | Inspection pointer assembly structure of metal polar plate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116960412A (en) * | 2023-09-18 | 2023-10-27 | 中国科学院宁波材料技术与工程研究所 | Inspection pointer assembly structure of metal polar plate |
| CN116960412B (en) * | 2023-09-18 | 2024-03-08 | 中国科学院宁波材料技术与工程研究所 | Inspection pointer assembly structure of metal polar plate |
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