JP7295079B2 - Physical quantity measuring device - Google Patents

Description

The present invention relates to a physical quantity measuring device.

2. Description of the Related Art A physical quantity measuring device having a built-in electronic adjustment section for adjusting an electronic circuit section provided on a circuit board is known (for example, Japanese Unexamined Patent Application Publication No. 2002-100000).
In Japanese Patent Laid-Open No. 2004-100003, a lid member attached to the open end of a cylindrical case is provided with an operation hole used for adjusting an electronic adjustment unit, so that electronic adjustment can be performed without removing the lid member from the case. It allows the operation of parts.

Further, in Patent Document 1, in order to prevent water or the like from entering the case through the operation hole, a cap member that closes the operation hole is detachably attached. In order to prevent the cap member from being lost, one end of a loss prevention member is connected to the cap member.

JP 2015-184259 A

In Patent Document 1, it is necessary to connect one end of the loss prevention member to the cap member and engage the other end to the lid member before attaching the lid member to the case. In this case, the cap member to which one end of the loss prevention member is connected cannot be attached while the lid member is attached to the case. Therefore, if the loss prevention member is damaged after the case is assembled, the loss prevention member cannot be replaced unless the case is disassembled, which complicates the repair work.

An object of the present invention is to provide a physical quantity measuring device capable of facilitating repair work.

A physical quantity measuring device of the present invention includes a cylindrical case having a through hole provided in a peripheral surface portion, a sensor module that is housed in the cylindrical case and detects a physical quantity, and the sensor module is attached to the cylindrical case. A joint arranged to cover one opening, a cover member arranged to cover the other opening of the cylindrical case, an electronic circuit section for receiving a signal detected by the sensor module, and the electronic circuit. a circuit board accommodated in the cylindrical case; a cap member attached so as to cover the through hole; and sealing between the through hole and the cap member. a sealing member, wherein the electronic adjusting section has an operated section arranged at a position corresponding to the through hole; the lid member includes a circuit board supporting section that supports the circuit board; A cap member has an attached portion to which a cap member is detachably attached, and the cap member includes a cap member main body portion arranged outside the cylindrical case and covering the through hole, and a bottom surface of the cap member main body portion. and a cap member engaging portion extending from the tip of the cap member shaft in a radial direction of the cap member shaft, wherein the sealing member is provided in an annular shape. a sealing member main body disposed so as to surround the cap member shaft; a linear member extending from the sealing member main body; and a sealing member engagement provided at a tip of the linear member. The attached portion includes a shaft portion insertion hole through which the cap member shaft portion can be inserted, and the shaft portion insertion hole through which the cap member engaging portion can be inserted. and a groove portion in which the linear member is arranged and which is continuous with the shaft portion insertion hole. The cap member engaging portion can be inserted into the engaging portion insertion hole in the first posture, and the cap member engaging portion is engaged with the attached portion in the second posture. In the first posture, the linear member is located on the side of the cap member engaging portion in the rotational direction of rotation from the first posture to the second posture when viewed from the direction of the cap member shaft portion. It is characterized in that it is arranged in

In the present invention, the cap member comprises: a cap member main body portion arranged outside the cylindrical case and covering the through hole; a cap member shaft portion extending from the bottom surface of the cap member main body portion; a cap member engaging portion extending radially of the cap member shaft. The sealing member includes a sealing member main body provided in an annular shape and arranged so as to surround the cap member shaft, a linear member extending from the sealing member main body, and a tip of the linear member. and a sealing member engagement portion provided. The attached portion to which the cap member is detachably attached includes a shaft portion insertion hole through which the cap member shaft portion can be inserted, and the shaft portion insertion hole through which the cap member engaging portion can be inserted. A continuous engaging portion insertion hole and a groove portion in which the linear member is arranged are provided. As a result, the cap member engaging portion can be inserted into the engaging portion insertion hole in the first posture, and the cap member engaging portion engages with the attached portion in the second posture. can be detachably attached to the
Here, in the first posture, the linear member is arranged on the side of the cap member engaging portion in the rotational direction of rotation from the first posture to the second posture when viewed from the axial direction of the cap member shaft portion. . Therefore, when the cap member shaft portion and the linear member are inserted into the shaft portion insertion hole with the cap member in the first posture, and then the cap member is rotated from the first posture to the second posture, The shaped member is urged by the cap member engaging portion to rotate in the same direction as the cap member. Then, since the linear member is guided to the groove of the attached portion while moving in the rotational direction, the linear member can be arranged in the groove. Therefore, even when the cap member is attached after the tubular case is assembled, the linear member that prevents the loss of the cap member can be attached to the attached portion arranged in the tubular case. Therefore, even if the linear member is damaged after the tubular case is assembled, the sealing member having the linear member can be easily replaced.

A physical quantity measuring device of the present invention includes a cylindrical case having a through hole provided in a peripheral surface portion, a sensor module that is housed in the cylindrical case and detects a physical quantity, and the sensor module is attached to the cylindrical case. A joint arranged to cover one opening, a cover member arranged to cover the other opening of the cylindrical case, an electronic circuit section for receiving a signal detected by the sensor module, and the electronic circuit. a circuit board accommodated in the cylindrical case; a cap member attached so as to cover the through hole; and sealing between the through hole and the cap member. a sealing member, wherein the electronic adjusting section has an operated section arranged at a position corresponding to the through hole; the lid member includes a circuit board supporting section that supports the circuit board; A cap member has an attached portion to which a cap member is detachably attached, and the cap member includes a cap member main body portion arranged outside the cylindrical case and covering the through hole, and a bottom surface of the cap member main body portion. and a cap member engaging portion extending from the tip of the cap member shaft in a radial direction of the cap member shaft, wherein the sealing member is provided in an annular shape. a sealing member main body disposed so as to surround the cap member shaft; a linear member extending from the sealing member main body; and a linear member provided at a tip of the linear member. a sealing member engaging shaft portion arranged along an intersecting direction, wherein the mounting portion includes a shaft portion insertion hole through which the cap member shaft portion can be inserted; and the cap member. an engaging portion insertion hole configured so that an engaging portion can be inserted thereinto and which is continuous with the shaft portion insertion hole; and an engaging shaft portion insertion hole in which the linear member is arranged and through which the sealing member engaging shaft portion can be inserted; is provided, and the cap member is pivotally supported by the mounting portion so as to be rotatable between a first posture and a second posture, and in the first posture, the cap member engaging portion engages the engaging portion insertion hole. It is characterized in that the cap member engaging portion engages with the attached portion in the second posture.

In the present invention, the cap member comprises: a cap member main body portion arranged outside the cylindrical case and covering the through hole; a cap member shaft portion extending from the bottom surface of the cap member main body portion; a cap member engaging portion extending radially of the cap member shaft. The sealing member includes a sealing member main body provided in an annular shape and arranged so as to surround the cap member shaft, a linear member extending from the sealing member main body, and a tip of the linear member. and a sealing member engaging shaft portion arranged along a direction intersecting with the linear member provided. The attached portion to which the cap member is detachably attached includes a shaft portion insertion hole through which the cap member shaft portion can be inserted, and a shaft portion insertion hole through which the cap member engaging portion can be inserted. and an engagement shaft insertion hole through which the linear member is arranged and the sealing member engagement shaft can be inserted. As a result, the cap member engaging portion can be inserted into the engaging portion insertion hole in the first posture, and the cap member engaging portion engages with the attached portion in the second posture. can be detachably attached to the

Here, the attached portion is provided with an engaging shaft portion insertion hole through which the sealing member engaging shaft portion can be inserted. Therefore, by first inserting the sealing member engaging shaft portion into the engaging shaft portion insertion hole and then arranging the linear member in the engaging shaft portion insertion hole, the sealing member can be attached to the mounting portion. can be installed. At this time, since the linear member and the sealing member engaging shaft portion intersect, after the linear member is arranged in the engaging shaft portion insertion hole, the sealing member engaging shaft portion and the mounted portion are separated from each other. engages. That is, even if the linear member is pulled in the direction of removing the sealing member, the sealing member engaging shaft portion cannot be easily removed from the attached portion. Therefore, if the sealing member is attached to the attached portion according to the procedure described above with the cap member attached, loss of the cap member can be prevented.
That is, even when the cap member is attached after the cylindrical case is assembled, the linear member that prevents the loss of the cap member can be attached to the attached portion arranged in the cylindrical case. Therefore, even if the linear member is damaged after the tubular case is assembled, the sealing member having the linear member can be easily replaced.

In the physical quantity measuring device of the present invention, a projecting portion whose diameter decreases toward the tip is formed at one end of the sealing member engaging shaft portion, and the other end of the sealing member engaging shaft portion It is desirable that a concave portion be formed along the axial direction in the end portion.
With this configuration, a tool such as a screwdriver can be inserted into the concave portion of the sealing member engaging shaft portion, and in this state, the protruding portion of the sealing member engaging shaft portion can be inserted into the engaging shaft portion insertion hole. Therefore, the operation of inserting the sealing member engaging shaft portion into the engaging shaft portion insertion hole can be facilitated.

In the physical quantity measuring device of the present invention, it is preferable that the attached portion is provided with an engaging convex portion that protrudes toward the through hole and engages with the through hole.
With this configuration, the engagement protrusion of the attached portion can be engaged with the through hole, so that the attached portion can be easily positioned with respect to the through hole. Therefore, it is possible to facilitate the assembly of the physical quantity measuring device.

In the physical quantity measuring device of the present invention, the cap member engaging portion is provided on a side opposite to the first engaging portion with respect to the first engaging portion and the cap member shaft portion. and a second engaging portion having a different size, and the engaging portion insertion hole includes a first engaging portion insertion hole corresponding to the first engaging portion and a shaft portion insertion hole sandwiching the It is preferable to have a second engaging portion insertion hole provided on the opposite side of the first engaging portion insertion hole and corresponding to the second engaging portion.
In this configuration, since the cap member engaging portion has the first engaging portion and the second engaging portion, it can be reliably engaged with the attached portion in the second posture. Therefore, in the second posture, it is possible to prevent the cap member from falling off from the attached portion.

In the physical quantity measuring device of the present invention, it is preferable that the cap member main body is formed in a pentagonal shape.
In this configuration, since the cap member main body has a pentagonal shape, the user can easily recognize whether the cap member is in the first posture or the second posture.

BRIEF DESCRIPTION OF THE DRAWINGS The perspective view which shows the outline of the physical-quantity measuring apparatus which concerns on 1st Embodiment of this invention. FIG. 2 is an exploded perspective view showing an outline of the physical quantity measuring device of the embodiment; The front view which shows the outline of a cover member. The perspective view which shows the outline of a cap member and a sealing member. The figure which shows the attachment process of a cap member and a sealing member. The figure which shows the attachment process of a cap member and a sealing member. The figure which shows the attachment process of a cap member and a sealing member. The figure which shows the attachment state of a sealing member. The front view which shows the outline of the cover member of 2nd Embodiment. The perspective view which shows the outline of the sealing member of 2nd Embodiment. The figure which shows the attachment process of a cap member and a sealing member. The figure which shows the attachment process of a cap member and a sealing member. The figure which shows the attachment process of a cap member and a sealing member. The figure which shows the attachment process of a cap member and a sealing member. The figure which shows the attachment state of a sealing member.

[First embodiment]
A first embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing an outline of a physical quantity measuring device 1 of this embodiment, and FIG. 2 is an exploded perspective view showing an outline of the physical quantity measuring device 1. As shown in FIG. The physical quantity measuring device 1 of this embodiment is configured to be able to measure the pressure of the fluid to be measured.
As shown in FIGS. 1 and 2, the physical quantity measuring device 1 includes a tubular case 2, a joint 3, a sensor module 4, a lid member 5, a circuit board 6, a signal transmission member 7, and a holding member 8. , a cap member 9 and a sealing member 10 .

[Cylindrical case 2]
The cylindrical case 2 is a metal member formed in a cylindrical shape, and has a first opening 21 formed in one direction along the central axis R and a second opening 22 formed in the other direction.
A recess 23 formed by recessing a part of the cylindrical case 2 is provided on the peripheral surface of the cylindrical case 2 . A through hole 24 is formed in the bottom surface of the concave portion 23 of the cylindrical case 2 . That is, the through hole 24 is provided in the peripheral surface portion of the tubular case 2 .
Further, a fitting ring 25 for fitting the lid member 5 is provided on the second opening 22 side. A step portion 26 is formed inside the fitting ring 25 .

[Joint 3]
The joint 3 is a member made of metal and arranged so as to cover the first opening 21 of the cylindrical case 2 . In this embodiment, the joint 3 is welded and joined to the end of the tubular case 2 on the first opening 21 side. Note that the joint 3 and the cylindrical case 2 are not limited to being joined by welding, and for example, the joint 3 may be attached to the cylindrical case 2 by being screwed together.
The joint 3 is formed with an introduction hole (not shown) for introducing the fluid to be measured. One end of the joint 3 is formed as a tool engaging portion 31 that extends radially from the center and engages with a tool such as a wrench, and the other end is screwed to a mounting portion (not shown). A male screw portion 32 is provided. The other end of the joint 3 is not limited to being the male threaded portion 32, and may be, for example, a female threaded portion. Furthermore, the other end portion of the joint 3 may be configured to be attached to the attachment location by welding.

[Sensor module 4]
The sensor module 4 has a cylindrical body portion 41 attached to one end side of the joint 3 and a diaphragm 42 integrally formed on the one end side of the cylindrical body portion 41 .
A strain gauge (not shown) is formed on the diaphragm 42, and this strain gauge detects the pressure of the fluid to be measured introduced from the introduction hole. The sensor module 4 is configured to output a detection signal to an electronic circuit section 62, which will be described later, according to the detected pressure.
The sensor module 4 is not limited to one having the diaphragm 42. For example, a so-called MEMS (Micro Electro Mechanical System) sensor may be used as long as it is configured to detect the pressure of the fluid to be measured. good.

[Lid member 5]
FIG. 3 is a front view showing an outline of the lid member 5. FIG.
As shown in FIGS. 1 to 3, the lid member 5 is a so-called connector-type member made of resin, and includes a lid body 51, a cylindrical portion 52, a circuit board support portion 53, and a mounting portion 54. Prepare.

The lid main body 51 is formed in a disc shape, and is attached to the tubular case 2 by crimping the above-described fitting ring 25 . A communication hole (not shown) that communicates with the cylindrical portion 52 is provided in the bottom surface of the lid body 51 .
The cylindrical portion 52 has a mounting hole 521 that accommodates the signal transmission member 7 on the inner peripheral surface thereof. Further, the outer peripheral surface of the tubular portion 52 is formed as a male thread portion.

The circuit board support portion 53 is a member that supports the circuit board 6 and is provided so as to protrude from the lid body 51 . In this embodiment, the circuit board support portion 53 has a pair of first support portion 531 and second support portion 532 . The circuit board supporting portion 53 supports the circuit board 6 by sandwiching the circuit board 6 between the first supporting portion 531 and the second supporting portion 532 .

The attached portion 54 is a member to which the cap member 9 is detachably attached. In this embodiment, the attached portion 54 has an attached portion main body 541 , a connecting portion 542 , and an engaging convex portion 543 .
The attached portion main body 541 is provided in a flat plate shape, and is connected to and supported by the first support portion 531 and the second support portion 532 by a connecting portion 542 . The attached portion main body 541 includes a shaft portion insertion hole 541A, a first engagement portion insertion hole 541B, a second engagement portion insertion hole 541C, a groove portion 541D, and an engaged portion 541E (see FIG. 5). ) are formed.
The engaging convex portion 543 is provided so as to protrude from the attached portion main body 541 toward the through hole 24 of the cylindrical case 2 . And in this embodiment, the engaging convex part 543 is inserted in the through-hole 24, and is engaged. Thereby, the lid member 5 is positioned with respect to the tubular case 2 .

A cap member shaft portion 92 of the cap member 9, which will be described later, can be inserted through the shaft portion insertion hole 541A.
The first engaging portion insertion hole 541B is provided continuously with the shaft portion insertion hole 541A. The first engaging portion insertion hole 541B is formed in a shape corresponding to the first engaging portion 931 of the cap member 9, which will be described later, so that the first engaging portion 931 can be inserted therethrough.
The second engaging portion insertion hole 541C is provided continuously with the shaft portion insertion hole 541A on the opposite side of the shaft portion insertion hole 541A from the first engagement portion insertion hole 541B. The second engaging portion insertion hole 541C is formed in a shape corresponding to the second engaging portion 932 of the cap member 9, which will be described later, so that the second engaging portion 932 can be inserted therethrough. The first engaging portion insertion hole 541B and the second engaging portion insertion hole 541C constitute an engaging portion insertion hole of the present disclosure that is continuous with the shaft portion insertion hole 541A.

The groove portion 541D is provided continuously with the shaft portion insertion hole 541A. In this embodiment, the groove portion 541D is formed so as to communicate with the position of the shaft portion insertion hole 541A from the first engaging portion insertion hole 541B. A linear member 102 of the sealing member 10, which will be described later, is arranged in the groove portion 541D.
The engaged portion 541E (see FIG. 5) is formed to be engageable with the first engaging portion 931. As shown in FIG. Details of the engaged portion 541E will be described later.
Details of how to attach the cap member 9 and the sealing member 10 to the attached portion 54 will be described later.

[Circuit board 6]
The circuit board 6 has a board body 61 , an electronic circuit section 62 and an electronic adjustment section 63 .
The substrate main body 61 is a planar rectangular plate member whose longitudinal direction is along the central axis R of the cylindrical case 2, and a wiring pattern (not shown) is formed on the front surface thereof. In this embodiment, the substrate body 61 includes a first substrate 611 and a second substrate 612 that are arranged parallel to each other, and the first substrate 611 and the second substrate 612 are connected by a connector 613. ing. The first substrate 611 and the second substrate 612 are supported by the lid member 5 by being sandwiched between the circuit substrate support portions 53 of the lid member 5 described above.
Further, in this embodiment, the second substrate 612 is formed with two locking holes 612A. The circuit board 6 is held by the holding member 8 by inserting a locking piece portion 82 of the holding member 8, which will be described later, into the locking hole 612A.
The board body 61 is not limited to the above configuration. For example, the board body 61 may be composed of one board, or may be composed of three or more boards.

The electronic circuit section 62 receives a detection signal from the sensor module 4 and is provided on the first substrate 611 . The strain gauges of the sensor module 4 and the electronic circuit section 62 are electrically connected by wires or the like (not shown).

The electronic adjustment section 63 adjusts the electronic circuit section 62 and is provided on the first substrate 611 so as to face the peripheral surface of the tubular case 2 .
In this embodiment, the electronic adjustment section 63 has an operated section 631 that functions as a trimmer. The operated portion 631 is provided at a position corresponding to the through hole 24 of the tubular case 2 . Accordingly, when the cap member 9 is removed to expose the through hole 24 , the operated portion 631 can be operated by inserting a screwdriver or the like through the through hole 24 .

[Signal transmission member 7]
The signal transmission member 7 has a cylindrical member 71 and a plurality of terminal terminals 72 provided on the cylindrical member 71 . The terminal terminals 72 are electrically connected to the circuit board 6 by wires or the like (not shown).

[Holding member 8]
The holding member 8 is a metal member for holding the circuit board 6 . In this embodiment, the holding member 8 has a flat portion 81 and a locking piece portion 82 . The plane portion 81 has a first plate portion 81A and a second plate portion 81B.

The first plate portion 81A is sandwiched between the stepped portion 26 of the cylindrical case 2 and the lid body 51 of the lid member 5, and its outer shape corresponds to the inner peripheral surface of the fitting ring 25. As shown in FIG.
A linear portion opposite to the outer surface forming the arc of the first plate portion 81</b>A contacts the side surface of the circuit board support portion 53 . Thereby, the holding member 8 is positioned with respect to the lid member 5 .

The second plate portion 81B is formed integrally with the first plate portion 81A, and is inserted between the pair of the first support portion 531 and the second support portion 532 and between the lid body 51 and the circuit board 6. be. A window portion 81C is formed in the second plate portion 81B. The window portion 81</b>C is a space for inserting an electric wire or the like for electrically connecting the terminal terminal 72 and the circuit board 6 .

The locking piece portion 82 is formed integrally with the first plate portion 81A. In this embodiment, two locking pieces 82 are provided. As described above, the locking pieces 82 are respectively inserted into the locking holes 612A of the circuit board 6, and the locking pieces 82 and the locking holes 612A are fixed by soldering (not shown). there is Thereby, the holding member 8 holds the circuit board 6 .

[Cap member 9]
FIG. 4 is a perspective view showing an outline of the cap member 9 and the sealing member 10. FIG.
As shown in FIGS. 1 to 4, the cap member 9 is made of resin and attached so as to cover the through hole 24 . In this embodiment, the cap member 9 is detachably attached to the attached portion 54 of the lid member 5 as described above. Also, the cap member 9 has a cap member body portion 91 , a cap member shaft portion 92 and a cap member engaging portion 93 .

The cap member body portion 91 is arranged outside the tubular case 2 so as to cover the through hole 24 of the tubular case 2 . More specifically, the cap member body portion 91 is arranged in the concave portion 23 of the tubular case 2 .
In this embodiment, the cap member main body 91 is formed in a pentagonal shape having an apex 91A, and has a bottom surface 91B facing the cylindrical case 2 and a surface 91C provided on the opposite side of the bottom surface 91B. are doing.

The cap member shaft portion 92 extends integrally with the cap member main body portion 91 from the bottom surface 91B of the cap member main body portion 91 . As described above, the cap member shaft portion 92 is configured to be able to be inserted into the shaft portion insertion hole 541A of the attached portion 54 .

The cap member engaging portion 93 extends from the tip of the cap member shaft portion 92 in the radial direction of the cap member shaft portion 92 . In this embodiment, the cap member engaging portion 93 has a first engaging portion 931 and a second engaging portion 932 .
The first engaging portion 931 extends in a quadrangular prism shape from the cap member shaft portion 92 and can be inserted into the above-described first engaging portion insertion hole 541B. That is, the first engaging portion 931 is formed slightly smaller than the first engaging portion insertion hole 541B.

The second engaging portion 932 is provided on the side opposite to the first engaging portion 931 with the cap member shaft portion 92 interposed therebetween. In this embodiment, the second engaging portion 932 extends from the cap member shaft portion 92 in the shape of a quadrangular prism, and can be inserted into the above-described second engaging portion insertion hole 541C. That is, the second engaging portion 932 is formed slightly smaller than the second engaging portion insertion hole 541C.
Moreover, in the present embodiment, the second engaging portion 932 is formed to be one size larger than the first engaging portion 931 . That is, the first engaging portion 931 and the second engaging portion 932 are different in size.

Here, in the present embodiment, when the apex 91A of the cap member main body portion 91 protrudes upward, that is, when it protrudes in the vertical direction, the first engaging portion 931 and the second engaging portion 932 are aligned with the cap member axis. It extends in the horizontal direction with respect to the portion 92 and can be inserted through the first engaging portion insertion hole 541B and the second engaging portion insertion hole 541C. That is, when the vertex 91A of the cap member main body portion 91 protrudes in the vertical direction, the cap member 9 is attached to the attached portion 54 of the lid member 5, or the cap member 9 is removed from the attached portion 54 of the lid member 5. be able to.
Further, when the apex 91A of the cap member main body portion 91 protrudes sideways, that is, when it protrudes in the horizontal direction, the first engaging portion 931 and the second engaging portion 932 are perpendicular to the cap member shaft portion 92. direction and engages with the attached portion 54 of the lid member 5 . That is, when the vertex 91A of the cap member main body portion 91 protrudes in the horizontal direction, the cap member 9 cannot be removed from the attached portion 54 of the lid member 5 .
The posture of the cap member 9 in which the vertex 91A protrudes vertically is an example of the first posture of the present invention, and the posture of the cap member 9 in which the vertex 91A protrudes in the horizontal direction is an example of the second posture of the present invention. be.

[Sealing member 10]
The sealing member 10 is a member that seals between the through hole 24 of the cylindrical case 2 and the cap member main body portion 91 of the cap member 9 . The sealing member 10 is made of rubber or synthetic resin having elasticity, and is attached to the cap member 9 . In this embodiment, the sealing member 10 has a sealing member body portion 101 , a linear member 102 and a sealing member engaging portion 103 .

The sealing member body portion 101 is provided in an annular shape and arranged so as to surround the cap member shaft portion 92 . In this embodiment, the sealing member main body 101 is formed with a protruding portion 101A protruding toward the cylindrical case 2 along the edge. When the sealing member main body 101 is arranged between the cap member main body 91 and the cylindrical case 2, the projecting part 101A is elastically deformed, so that the cap member main body 91 and the through hole 24 are separated. Seal the space.

The linear member 102 extends like a rod from the cap member main body 91 toward the cylindrical case 2 . Then, the linear member 102 is inserted through the groove portion 541D of the attached portion main body 541 described above.
The sealing member engaging portion 103 is provided at the tip of the linear member 102 . In this embodiment, the sealing member engaging portion 103 is formed in a substantially hemispherical shape.

[Method for Attaching Cap Member 9 and Sealing Member 10]
Next, a method for attaching the cap member 9 and the sealing member 10 will be described.
5 to 7 are diagrams showing the process of attaching the cap member 9 and the sealing member 10. FIG. 5 to 7, the tubular case 2, the circuit board 6, etc. are omitted for the sake of clarity. 5 to 7, the lid member 5 is viewed from the direction opposite to that in FIG.

First, the cylindrical case 2 is assembled. That is, the physical quantity measuring device 1 is assembled except for the cap member 9 and the sealing member 10 . Then, as shown in FIG. 5, the cap member main body portion 91 is directed so that the vertex 91A protrudes in the vertical direction, and in this state, the cap member shaft portion 92, the first engaging portion 931, and the second engaging portion 932 are engaged. are inserted through the shaft portion insertion hole 541A, the first engagement portion insertion hole 541B, and the second engagement portion insertion hole 541C, respectively.
Further, the linear member 102 and the sealing member engaging portion 103 are inserted through the shaft portion insertion hole 541A. That is, when viewed from the axial direction of the cap member shaft portion 92, the sealing member 10 is arranged such that the linear member 102 and the sealing member engaging portion 103 are located on the counterclockwise side of the second engaging portion 932. is attached to the cap member 9.

Next, as shown in FIG. 6, the cap member 9 is rotated counterclockwise around the cap member shaft portion 92 as the center of rotation. Then, the linear member 102 and the sealing member engaging portion 103 are biased by the second engaging portion 932 and move counterclockwise. Note that the counterclockwise direction is an example of the rotation direction of the present invention.

Then, as shown in FIG. 7, when the cap member 9 is further rotated counterclockwise, the first engaging portion 931 is engaged with the vertex 91A of the cap member main body portion 91 facing the horizontal direction. It engages with portion 541E. This restricts the counterclockwise rotation of the cap member 9 . Then, as described above, in this state, the first engaging portion 931 and the second engaging portion 932 are engaged with the attached portion 54 . Therefore, in this state, the cap member 9 does not drop off from the attached portion 54 . That is, the cap member 9 is pivotally supported by the attached portion 54 so as to be rotatable between a posture in which the vertex 91A protrudes in the vertical direction and a posture in which the vertex 91A protrudes in the horizontal direction.

Further, as shown in FIG. 7, when the cap member 9 is rotated counterclockwise until the first engaging portion 931 engages the engaged portion 541E, the linear member 102 moves toward the second engaging portion 932. is placed in the groove portion 541D. Thereby, the sealing member 10 is attached to the attached portion 54 . Thus, in this embodiment, the cap member 9 and the sealing member 10 can be attached while the cylindrical case 2 is assembled.
Even if the cap member 9 is rotated clockwise in this state, the linear member 102 is arranged in the groove portion 541D and is biased by the first engaging portion 931 and the second engaging portion 932. no. In other words, the sealing member 10 does not come off from the attached portion 54 even when the cap member 9 is rotated between the posture in which the apex 91A protrudes in the vertical direction and the posture in which the vertex 91A protrudes in the horizontal direction.

FIG. 8 is a diagram showing the mounting state of the sealing member 10. As shown in FIG.
As shown in FIG. 8, the first engaging portion 931 and the second engaging portion 932 can be removed from the attached portion 54 by rotating the cap member 9 to a posture in which the apex 91A protrudes in the vertical direction. In this state, since the linear member 102 is arranged in the groove portion 541D, the sealing member engaging portion 103 is engaged with the attached portion 54. As shown in FIG. Accordingly, even when the cap member 9 is removed from the attached portion 54 , the sealing member 10 does not come off from the attached portion 54 . Therefore, when the cap member 9 is removed, it is possible to prevent the cap member 9 to which the sealing member 10 is attached from being lost.
In this embodiment, since the cap member main body portion 91 is formed in a pentagonal shape having an apex 91A, the directions of the first engaging portion 931 and the second engaging portion 932 can be easily recognized. In other words, the user can easily recognize whether or not the cap member 9 is detachable by checking the orientation of the cap member main body portion 91 .

The following effects can be obtained in this embodiment as described above.
(1) In the present embodiment, the cap member 9 includes a cap member main body portion 91 arranged outside the cylindrical case 2 and covering the through hole 24, and a cap member shaft extending from the bottom surface 91B of the cap member main body portion 91. and a first engaging portion 931 and a second engaging portion 932 extending from the tip of the cap member shaft portion 92 in the radial direction of the cap member shaft portion 92 . Further, the sealing member 10 includes a sealing member main body portion 101 provided in an annular shape and arranged so as to surround the cap member shaft portion 92, a linear member 102 extending from the sealing member main body portion 101, and a sealing member engaging portion 103 provided at the tip of the linear member 102 . The attached portion 54 to which the cap member 9 is detachably attached has a shaft portion insertion hole 541A through which the cap member shaft portion 92 can be inserted, and a shaft portion insertion hole 541A through which the first engaging portion 931 can be inserted. a first engagement portion insertion hole 541B continuous with the shaft portion insertion hole 541A; a second engagement portion insertion hole 541C configured so that the second engagement portion 932 can be inserted and continuous with the shaft portion insertion hole 541A; A groove portion 541D in which 102 is arranged is provided. As a result, the first engaging portion 931 and the second engaging portion 932 are inserted through the first engaging portion insertion hole 541B and the second engaging portion insertion hole 541B, respectively. It can be inserted through the hole 541C. Furthermore, the first engaging portion 931 and the second engaging portion 932 of the cap member 9 are engaged with the attached portion 54 in the posture in which the apex 91A protrudes in the horizontal direction, that is, in the second posture. Therefore, the cap member 9 is detachably attached to the attached portion 54 .
Here, in the posture in which the apex 91A protrudes in the vertical direction, that is, in the first posture, the linear member 102 rotates more counterclockwise than the second engaging portion 932 when viewed from the axial direction of the cap member shaft portion 92. placed on the direction side. For this reason, the cap member shaft portion 92 and the linear member 102 are inserted into the shaft portion insertion hole 541A in a state in which the apex 91A of the cap member 9 protrudes vertically, and then the cap member 9 is rotated counterclockwise. When rotated in the direction, the linear member 102 is urged by the second engaging portion 932 to rotate counterclockwise. Then, the linear member 102 is guided to the groove portion 541D of the attached portion 54 while moving counterclockwise, so that the linear member 102 can be arranged in the groove portion 541D. Therefore, even when the cap member 9 is attached after the cylindrical case 2 is assembled, the linear member 102 that prevents the loss of the cap member 9 should be attached to the attached portion 54 arranged inside the cylindrical case 2 . can be done. Therefore, even if the linear member 102 is damaged after the tubular case 2 is assembled, the sealing member 10 having the linear member 102 can be easily replaced.

(2) In the present embodiment, since the engaging protrusions 543 of the attached portion 54 can be engaged with the through holes 24 , the attached portion 54 can be easily positioned with respect to the through holes 24 . Therefore, assembly of the physical quantity measuring device 1 can be facilitated.

(3) In the present embodiment, since the cap member engaging portion 93 has the first engaging portion 931 and the second engaging portion 932, it can be reliably engaged with the attached portion . Therefore, it is possible to prevent the cap member 9 from falling off from the attached portion 54 .

(4) In the present embodiment, the cap member body 91 has a pentagonal shape, so the user can easily recognize whether the cap member 9 is in the first posture or the second posture.

[Second embodiment]
Next, a second embodiment of the invention will be described with reference to the drawings.
In the second embodiment, the sealing member 10A has a sealing member engaging shaft portion 107A provided at the tip of the linear member 106A and arranged along the direction intersecting the linear member 106A. 54A differs from the first embodiment in that an engagement shaft insertion hole 541J through which the sealing member engagement shaft 107A can be inserted is formed. In addition, in 2nd Embodiment, the same code|symbol is attached|subjected to the same or similar structure as 1st Embodiment, and description is abbreviate|omitted.

[Lid member 5A]
FIG. 9 is a front view showing an outline of the lid member 5A of this embodiment.
As shown in FIG. 9, the lid member 5A is a so-called connector-type member made of resin like the lid member 5 of the first embodiment described above, and includes a lid body 51A, a cylindrical portion 52A, and a circuit board support. It has a portion 53A and an attached portion 54A.
Note that the lid body 51A, the cylindrical portion 52A, and the circuit board support portion 53A are the same as the lid body 51, the cylindrical portion 52, and the circuit board support portion 53 of the first embodiment described above. A detailed explanation is omitted.

The attached portion 54A is a member to which the cap member 9 is detachably attached, similar to the attached portion 54 of the first embodiment. In this embodiment, the attached portion 54A has an attached portion main body 541F, a connecting portion 542A, and an engaging protrusion 543A. Since the connecting portion 542A and the engaging convex portion 543A are the same as the connecting portion 542 and the engaging convex portion 543 of the first embodiment described above, detailed description thereof will be omitted.
The attached portion main body 541F is provided in a flat plate shape, and is connected to and supported by the first support portion 531A and the second support portion 532A by a connecting portion 542A. A shaft portion insertion hole 541G, a first engagement portion insertion hole 541H, a second engagement portion insertion hole 541I, and an engagement shaft portion insertion hole 541J are formed in the attached portion main body 541F. . As in the first embodiment described above, an engaged portion 541E (see FIG. 13) is formed in the attached portion main body 541F in the same manner as in the first embodiment described above.

The cap member shaft portion 92 of the cap member 9 can be inserted through the shaft portion insertion hole 541G as in the first embodiment described above.
The first engaging portion insertion hole 541H is provided continuously with the shaft portion insertion hole 541G. The first engaging portion insertion hole 541H is formed in a shape corresponding to the first engaging portion 931 of the cap member 9 so that the first engaging portion 931 can be inserted therethrough.
The second engaging portion insertion hole 541I is formed continuously with the shaft portion insertion hole 541G on the opposite side of the shaft portion insertion hole 541G from the first engagement portion insertion hole 541H. The second engaging portion insertion hole 541I is formed in a shape corresponding to the second engaging portion 932 of the cap member 9 so that the second engaging portion 932 can be inserted therethrough. The first engaging portion insertion hole 541H and the second engaging portion insertion hole 541I constitute an engaging portion insertion hole of the present disclosure that is continuous with the shaft portion insertion hole 541G.

The engaging shaft insertion hole 541J is provided independently of the shaft insertion hole 541G, that is, not connected to the shaft insertion hole 541G. A linear member 106A of a sealing member 10A, which will be described later, can be arranged in the engagement shaft portion insertion hole 541J, and a sealing member engagement shaft portion 107A can be inserted therethrough.
Details of how to attach the cap member 9 and the sealing member 10A to the attached portion 54A will be described later.

[Sealing member 10A]
FIG. 10 is a front view schematically showing the sealing member 10A of this embodiment.
As shown in FIG. 10, the sealing member 10A has a gap between the through hole 24 of the cylindrical case 2 and the cap member body 91 of the cap member 9, like the sealing member 10 of the first embodiment described above. It is a member that seals the The sealing member 10A is made of rubber or synthetic resin having elasticity, and is attached to the cap member 9. As shown in FIG. In this embodiment, the sealing member 10A has a sealing member body portion 104A, a linear member 106A, and a sealing member engaging shaft portion 107A.

The sealing member main body portion 104A is provided in an annular shape and arranged so as to surround the cap member shaft portion 92 . In this embodiment, the sealing member main body 104A is formed with a protruding portion 105A protruding toward the cylindrical case 2 along the edge. When the sealing member main body portion 104A is arranged between the cap member main body portion 91 and the cylindrical case 2, the projecting portion 105A is elastically deformed, so that the cap member main body portion 91 and the through hole 24 are separated. Seal the space.

The linear member 106A extends like a rod from the cap member main body 91 toward the tubular case 2 side. The linear member 106A is arranged in the engaging shaft portion insertion hole 541J of the attached portion main body 541F described above.
The sealing member engaging shaft portion 107A is provided at the tip of the linear member 106A and extends in a direction orthogonal to the linear member 106A. That is, the linear member 106A and the sealing member engaging shaft portion 107A form a T shape. In this embodiment, a protrusion 108A and a recess 109A are formed in the sealing member engagement shaft 107A.

The projecting portion 108A is provided at one end of the sealing member engaging shaft portion 107A, and is formed so that the diameter decreases toward the tip. That is, the projecting portion 108A is conical.
The recess 109A is formed along the axial direction of the sealing member engaging shaft portion 107A at the other end of the sealing member engaging shaft portion 107A. A tool such as a screwdriver can be inserted into the recess 109A.

[How to attach cap member 9 and sealing member 10A]
Next, a method for attaching the cap member 9 and the sealing member 10A will be described.
11 to 14 are diagrams showing the process of attaching the cap member 9 and the sealing member 10A. 11 to 14, the cylindrical case 2, the circuit board 6, etc. are omitted for the sake of clarity. 13 and 14, the lid member 5A is viewed from the direction opposite to that in FIG.

First, the tubular case 2 is assembled in the same manner as in the first embodiment described above. Then, as shown in FIG. 11, the cap member main body portion 91 is directed so that the apex 91A protrudes in the vertical direction, and in this state, the protrusion portion 108A of the sealing member engagement shaft portion 107A is inserted into the engagement shaft portion. It is arranged at a position corresponding to the hole 541J.

Next, as shown in FIG. 12, the sealing member engaging shaft portion 107A is inserted into the engaging shaft portion insertion hole 541J with the projecting portion 108A leading. At this time, a tool such as a screwdriver is inserted into the concave portion 109A of the sealing member engaging shaft portion 107A, and in this state, the projecting portion 108A is inserted into the engaging shaft portion insertion hole 541J. Thereby, the sealing member engaging shaft portion 107A can be easily inserted into the engaging shaft portion insertion hole 541J.

Next, as shown in FIG. 13, the cap member shaft portion 92, the first engaging portion 931, and the second engaging portion 932 are inserted into the shaft portion insertion hole 541G, the first engaging portion insertion hole 541H, and the second engaging portion, respectively. is inserted through the partial insertion hole 541I.

Next, as shown in FIG. 14, the cap member 9 is rotated counterclockwise around the cap member shaft portion 92 as the center of rotation. Then, the first engaging portion 931 is engaged with the engaged portion 541E with the vertex 91A of the cap member main body portion 91 facing in the horizontal direction. This restricts the counterclockwise rotation of the cap member 9 . In this state, the first engaging portion 931 and the second engaging portion 932 are engaged with the attached portion 54A, similarly to the first embodiment described above. Therefore, in this state, the cap member 9 does not come off from the attached portion 54A. That is, the cap member 9 is rotatably supported by the attached portion 54A so that the vertex 91A protrudes vertically and horizontally.
Thus, in this embodiment, the cap member 9 and the sealing member 10A can be attached while the cylindrical case 2 is assembled.

FIG. 15 is a diagram showing the mounting state of the sealing member 10A.
As shown in FIG. 15, when the cap member 9 is rotated to a posture in which the vertex 91A protrudes vertically, the first engaging portion 931 and the second engaging portion 932 can be removed from the attached portion 54A. In this state, since the linear member 106A is arranged in the engaging shaft portion insertion hole 541J, the sealing member engaging shaft portion 107A engages with the attached portion 54A. Accordingly, even when the cap member 9 is removed from the attached portion 54A, the sealing member 10A does not come off from the attached portion 54A. Therefore, when the cap member 9 is removed, it is possible to prevent the cap member 9 to which the sealing member 10A is attached from being lost.

The following effects can be obtained in this embodiment as described above.
(5) In the present embodiment, the cap member 9 includes a cap member main body portion 91 arranged outside the cylindrical case 2 and covering the through hole 24, and a cap member shaft extending from the bottom surface 91B of the cap member main body portion 91. and a first engaging portion 931 and a second engaging portion 932 extending from the tip of the cap member shaft portion 92 in the radial direction of the cap member shaft portion 92 . The sealing member 10A includes a sealing member main body portion 104A which is provided in an annular shape and is arranged so as to surround the cap member shaft portion 92, a linear member 106A which extends from the sealing member main body portion 104A, and a wire member. and a sealing member engaging shaft portion 107A provided at the tip of the shaped member 106A and arranged along a direction orthogonal to the linear member 106A. The attached portion 54A to which the cap member 9 is detachably attached has a shaft portion insertion hole 541G through which the cap member shaft portion 92 can be inserted, and a shaft portion insertion hole 541G through which the first engaging portion 931 can be inserted. A first engaging portion insertion hole 541H continuous with the shaft portion insertion hole 541G, a second engaging portion insertion hole 541I configured so that the second engaging portion 932 can be inserted and continuous with the shaft portion insertion hole 541G, and a linear member 106A is arranged and an engagement shaft portion insertion hole 541J through which the sealing member engagement shaft portion 107A can be inserted is provided. As a result, the cap member engaging portion 93 can be inserted into the shaft portion insertion hole 541G in the posture in which the apex 91A of the cap member 9 protrudes in the vertical direction, that is, in the first posture. Furthermore, the first engaging portion 931 and the second engaging portion 932 of the cap member 9 engage with the attached portion 54A in the posture in which the vertex 91A protrudes in the horizontal direction, that is, in the second posture. That is, the cap member 9 is detachably attached to the attached portion 54A.
Here, the attached portion 54A is provided with an engaging shaft portion insertion hole 541J through which the sealing member engaging shaft portion 107A can be inserted. Therefore, first, the sealing member engaging shaft portion 107A is inserted into the engaging shaft portion insertion hole 541J, and then the linear member 106A is arranged in the engaging shaft portion insertion hole 541J. can be attached to the attached portion 54A. At this time, since the linear member 106A and the sealing member engaging shaft portion 107A are perpendicular to each other, after the linear member 106A is arranged in the engaging shaft portion insertion hole 541J, the sealing member engaging shaft portion 107A and the attached portion 54A are engaged. That is, even if the linear member 106A is pulled in the direction of removing the sealing member 10A, the sealing member engaging shaft portion 107A cannot be easily removed from the attached portion 54A. Therefore, if the sealing member 10A is attached to the attached portion 54A according to the procedure described above with the cap member 9 attached, the loss of the cap member 9 can be prevented.
That is, even when the cap member 9 is attached after the tubular case 2 is assembled, the linear member 106A that prevents the loss of the cap member 9 can be attached to the attached portion 54A arranged inside the tubular case 2. can be done. Therefore, even if the linear member 106A is damaged after the tubular case 2 is assembled, the sealing member 10A having the linear member 106A can be easily replaced.

(6) In this embodiment, a tool such as a screwdriver is inserted into the concave portion 109A of the sealing member engaging shaft portion 107A, and in this state, the projecting portion 108A of the sealing member engaging shaft portion 107A is inserted into the engaging shaft portion. It can be inserted through the hole 541J. Therefore, the operation of inserting the sealing member engaging shaft portion 107A into the engaging shaft portion insertion hole 541J can be facilitated.

[Modification]
It should be noted that the present invention is not limited to the above-described embodiments, and includes modifications, improvements, etc. within the scope of achieving the object of the present invention.
In each of the embodiments described above, the tubular case 2 is formed in a cylindrical shape, but is not limited to this. For example, the tubular case may be formed in a polygonal tubular shape.

In each of the above embodiments, the cylindrical case 2, the joint 3, and the holding member 8 are made of metal, but they are not limited to this, and may be made of resin, for example.

In each of the above-described embodiments, the cap member 9 rotates counterclockwise when viewed from the axial direction of the cap member shaft portion 92 from the posture in which the vertex 91A protrudes vertically to the posture in which the vertex 91A protrudes in the horizontal direction. Although it was configured to be possible, it is not limited to this. For example, the cap member 9 is configured to be rotatable clockwise when viewed from the axial direction of the cap member shaft portion 92 from an attitude in which the vertex 91A protrudes vertically to an attitude in which the vertex 91A protrudes in the horizontal direction. All you have to do is

In each of the above-described embodiments, the cap member body portion 91 is formed in a pentagonal shape having an apex 91A, but is not limited to this. For example, the cap member main body may be formed in a square shape or a triangular shape. Further, the cap member main body may be provided with a mark indicating the orientation of the first engaging portion and the second engaging portion.

In each of the embodiments described above, the first engaging portion 931 and the second engaging portion 932 have different sizes, but the present invention is not limited to this. For example, the first engaging portion and the second engaging portion may have the same size.

In each of the above-described embodiments, the mounting portions 54 and 54A are provided with the engaging projections 543 and 543A that protrude toward the through hole 24 and engage with the through hole 24, but the present invention is not limited to this. For example, the present invention includes a case where the attached portion is not provided with the engaging protrusion.

In the first embodiment, the sealing member engaging portion 103 is formed in a substantially hemispherical shape, but is not limited to this. For example, the sealing member engaging portion may be formed in a plate shape as long as it can be engaged with the attached portion.

In the second embodiment, the sealing member engaging shaft portion 107A is provided along the direction orthogonal to the linear member 106A at the distal end of the linear member 106A, but the present invention is not limited to this. The sealing member engaging shaft portion may be provided along a direction intersecting the linear member, and when the linear member is arranged in the engaging shaft portion insertion hole, the sealing member engaging shaft portion can be engaged with the mounted portion. It just needs to be configured.

In the above embodiment, the physical quantity measuring device 1 is configured to be able to measure the pressure of the fluid to be measured, but is not limited to this, and may be configured to be capable of measuring differential pressure or temperature, for example. .

DESCRIPTION OF SYMBOLS 1... Physical quantity measuring apparatus 2... Cylindrical case 3... Joint 4... Sensor module 5, 5A... Lid member 6... Circuit board 7... Signal transmission member 8... Holding member 9... Cap member 10 , 10A...sealing member, 21...first opening, 22...second opening, 23...recessed portion, 24...through hole, 25...fitting ring, 26...stepped portion, 31...tool engaging portion, 32...male screw portion , 41... Cylindrical part 42... Diaphragm 51, 51A... Lid main body 52, 52A... Cylindrical part 53, 53A... Circuit board supporting part 54, 54A... Attached part 61... Substrate main body 62... Electronic circuit portion 63 Electronic adjustment portion 71 Cylindrical member 72 Terminal terminal 81 Plane portion 81A First plate portion 81B Second plate portion 81C Window portion 82 Locking piece portion , 91... Cap member main body portion 91A... Vertex 91B... Bottom surface 91C... Surface 92... Cap member shaft portion 93... Cap member engaging portion 101, 104A... Sealing member main body portion 101A, 105A... Projection Part 102, 106A Linear member 103 Sealing member engaging portion 107A Sealing member engaging shaft 108A Protruding portion 109A Recess 521 Mounting hole 531, 531A First support Part 532, 532A... Second support part 541, 541F... Attached part main body 541A, 541G... Shaft insertion hole 541B, 541H... First engagement part insertion hole 541C, 541I... Second engagement part Insertion hole 541D Groove 541E Engaged portion 541J Engagement shaft portion insertion hole 542, 542A Connection portion 543, 543A Engagement protrusion 611 First substrate 612 Second substrate , 612A... locking hole, 631... operated portion, 931... first engaging portion, 932... second engaging portion.

Claims (6)

a cylindrical case having a through hole in the peripheral surface;
a sensor module that is housed in the tubular case and detects a physical quantity;
a joint to which the sensor module is attached and arranged so as to cover one opening of the cylindrical case;
a lid member arranged to cover the other opening of the cylindrical case;
a circuit board housed in the tubular case, the circuit board having an electronic circuit unit for receiving a signal detected by the sensor module and an electronic adjustment unit for adjusting the electronic circuit unit;
a cap member attached to cover the through hole;
a sealing member that seals between the through hole and the cap member;
The electronic adjustment section has an operated section arranged at a position corresponding to the through hole,
The lid member has a circuit board supporting portion that supports the circuit board and an attached portion to which the cap member is detachably attached,
The cap member includes a cap member main body portion arranged outside the cylindrical case and covering the through hole, a cap member shaft portion extending from a bottom surface of the cap member main body portion, and a tip end of the cap member shaft portion. a cap member engaging portion extending in the radial direction of the cap member shaft portion from
The sealing member includes a sealing member main body provided in an annular shape and arranged so as to surround the cap member shaft, a linear member extending from the sealing member main body, and the linear member. and a sealing member engaging portion provided at the tip,
The mounting portion includes a shaft insertion hole through which the cap member shaft can be inserted, and an engaging portion insertion hole through which the cap member engaging portion can be inserted and which is continuous with the shaft insertion hole. and a groove portion in which the linear member is arranged and which is continuous with the shaft portion insertion hole,
The cap member is rotatably supported by the mounting portion in a first posture and a second posture, and the cap member engaging portion can be inserted through the engaging portion insertion hole in the first posture. , the cap member engaging portion engages with the attached portion in the second posture;
In the first posture, the linear member is arranged on the side of the cap member engaging portion in the rotational direction of rotation from the first posture to the second posture when viewed from the direction of the cap member shaft portion. A physical quantity measuring device characterized by: a cylindrical case having a through hole in the peripheral surface;
a sensor module that is housed in the tubular case and detects a physical quantity;
a joint to which the sensor module is attached and arranged so as to cover one opening of the cylindrical case;
a lid member arranged to cover the other opening of the cylindrical case;
a circuit board housed in the tubular case, the circuit board having an electronic circuit unit for receiving a signal detected by the sensor module and an electronic adjustment unit for adjusting the electronic circuit unit;
a cap member attached to cover the through hole;
a sealing member that seals between the through hole and the cap member;
The electronic adjustment section has an operated section arranged at a position corresponding to the through hole,
The lid member has a circuit board supporting portion that supports the circuit board and an attached portion to which the cap member is detachably attached,
The cap member includes a cap member main body portion arranged outside the cylindrical case and covering the through hole, a cap member shaft portion extending from a bottom surface of the cap member main body portion, and a tip end of the cap member shaft portion. a cap member engaging portion extending in the radial direction of the cap member shaft portion from
The sealing member includes a sealing member main body provided in an annular shape and arranged so as to surround the cap member shaft, a linear member extending from the sealing member main body, and the linear member. a sealing member engaging shaft portion provided at the tip and arranged along a direction intersecting with the linear member;
The mounting portion includes a shaft insertion hole through which the cap member shaft can be inserted, and an engaging portion insertion hole through which the cap member engaging portion can be inserted and which is continuous with the shaft insertion hole. and an engaging shaft portion insertion hole through which the linear member is arranged and through which the sealing member engaging shaft portion can be inserted,
The cap member is rotatably supported by the mounting portion in a first posture and a second posture, and the cap member engaging portion can be inserted through the engaging portion insertion hole in the first posture. , the physical quantity measuring device, wherein the cap member engaging portion engages with the attached portion in the second posture. In the physical quantity measuring device according to claim 2,
At one end of the sealing member engaging shaft portion, a projecting portion whose diameter decreases toward the tip is formed,
A physical quantity measuring device, wherein a concave portion is formed in the other end portion of the sealing member engaging shaft portion along the axial direction. In the physical quantity measuring device according to any one of claims 1 to 3,
The physical quantity measuring device, wherein the attached portion is provided with an engaging convex portion that protrudes toward the through hole and engages with the through hole. In the physical quantity measuring device according to any one of claims 1 to 4,
The cap member engaging portion includes a first engaging portion and a second engaging portion provided on the opposite side of the cap member shaft portion from the first engaging portion and having a size different from that of the first engaging portion. having a joint and
The engaging portion insertion hole is provided on a side opposite to the first engaging portion insertion hole with the first engagement portion insertion hole corresponding to the first engagement portion and the shaft portion insertion hole interposed therebetween. and a second engaging portion insertion hole corresponding to the second engaging portion. In the physical quantity measuring device according to any one of claims 1 to 5,
A physical quantity measuring device, wherein the cap member main body is formed in a pentagonal shape.

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