JP5140548B2 - Fire extinguisher - Google Patents

Description

  The present invention relates to a fire extinguisher equipped with a pressure gauge.

Conventionally, when attaching a pressure gauge to a fire extinguisher, a hole with a female thread was provided on the front side of the valve, and the rear end surface of the pressure gauge was projected rearward, and a male thread was cut on the outer periphery. A method of connecting a valve provided with a screw boss and a pressure gauge is used (for example, Patent Document 1). The threading start end position of each of the female screw and male screw is defined so that the pressure gauge is fixed in a normal posture with the proper display area portion at a predetermined angular position when the female screw and male screw are combined to the final tightening position. Has been. By adopting such a conventional connection method, when assembling the fire extinguisher, it is possible to attach the proper display region portion to a normal posture so as to be at a predetermined angular position by only mounting the female screw and the male screw once.
JP 2002-272868 A

  A pressure gauge is a device that has a characteristic that it is not useful in situations where a fire extinguisher must be used unless a predetermined scale position is always directed in a certain direction. Therefore, sufficient consideration is required for attaching the pressure gauge to the fire extinguisher. Adopting the connection method described in the above-mentioned Patent Document 1 is one solution, but this means requires a work for cutting off the internal thread and the external thread very precisely for the valve and the pressure gauge, and the pressure gauge Therefore, the number of manufacturing steps and the manufacturing cost are increased. If the above-mentioned means is adopted, the valve may be damaged due to an operation mistake or the like in the operation of cutting the internal thread in the valve, and there is a possibility that a pressure drop is caused by liquid leakage or gas leakage from the valve. Therefore, a simple and reliable pressure gauge mounting mechanism or means has been desired.

  The present invention greatly contributes to the simplification of the configuration for connecting the fire extinguisher valve body and the pressure gauge and the improvement of the reliability by solving the above-described technical problems.

  One fire extinguisher of the present invention includes a pressure gauge and a fire extinguisher valve body. The pressure gauge has an insertion portion having a cylindrical portion and a fitted portion made of a convex portion or a concave portion formed in the insertion direction of the insertion portion. Further, the fire extinguisher valve body is inserted into the insertion portion that seals the cylindrical portion when the insertion portion is inserted, and is fitted into the insertion portion, and is perpendicular to the insertion direction of the pressure gauge. And a fitting portion that prevents rotation of the flat surface.

  According to this fire extinguisher, the insertion portion of the pressure gauge is inserted and sealed in the insertion portion of the fire extinguisher valve body, and the convex portion formed in the insertion direction of the insertion portion described above or a part of the pressure gauge Since it has the fitting part fitted in a recessed part, a pressure gauge can be fixed, without cutting a screw to the valve body for fire extinguishers, or a pressure gauge. In addition, the above-described fitting portion and fitted portion prevent the pressure gauge from rotating on a plane perpendicular to the insertion direction of the pressure gauge. Further, according to one fire extinguisher of the present invention, the fire extinguisher valve body is not damaged when the screw is cut, and liquid leakage or gas leakage from the fire extinguisher valve body is not caused.

According to a preferred aspect of the present invention, the above-described fitted portion is a regular polygonal columnar convex portion having the same central axis as the central axis of the above-described cylindrical portion, and the above-described fitted portion is the convex portion. In this fire extinguisher, a plurality of concave portions having a regular polygonal column shape corresponding to the portion are formed at substantially equal angular intervals around the central axis of the convex portion having the regular polygonal column shape to be inserted . That is, a plurality of regular polygonal column-shaped recesses are formed at substantially equal angular intervals at positions that are point-symmetric about the central axis of the recess.

Another preferred embodiment of the present invention is that the fitting portion is a regular polygonal columnar convex portion having the same central axis as the central axis of the cylindrical portion, and the fitted portion is In this fire extinguisher, a plurality of regular polygonal column-shaped recesses corresponding to the projections are formed at substantially equal angular intervals around the central axis of the inserted regular polygonal column-shaped projections . That is, a plurality of regular polygonal column-shaped recesses are formed at substantially equal angular intervals at positions that are point-symmetric about the central axis of the recess.

  Another preferable aspect of the present invention is that the above-described fitted portion has the above-described convex portion formed apart from the above-described insertion portion, and the above-described fitting portion has the convex portion. A fire extinguisher in which a plurality of recesses corresponding to is formed apart from the insertion portion at substantially equal angular intervals on the same circumference around the central axis of the cylindrical portion sealed by the insertion portion. is there.

  In addition, according to another preferable aspect of the present invention, the above-described fitting portion has the above-described convex portion that is formed apart from the above-described insertion portion, and the above-described fitted portion has the convex shape. A fire extinguisher in which a plurality of recesses corresponding to a portion are formed spaced apart from the insertion portion at substantially equal angular intervals on the same circumference around the central axis of the cylindrical portion sealed by the insertion portion It is.

  By adopting the configuration of each of the preferred embodiments described above, when the pressure gauge is attached, it is only necessary to fit the fitting part or the non-fitting part at a position where the normal posture is set or a position close to the normal posture. Thus, not only can the pressure gauge be installed, but also the movement in the rotational direction from the installation position is prevented. Accordingly, it is not necessary to manufacture a precise screw for attaching the pressure gauge to the fire extinguisher valve body in a normal posture or to screw the pressure gauge, and the number of manufacturing steps and manufacturing costs can be greatly reduced.

  According to the fire extinguisher of the present invention, the structure for connecting the fire extinguisher valve body and the pressure gauge can be simplified and the reliability can be improved.

  Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In this description, common parts are denoted by common reference symbols throughout the drawings unless otherwise specified. In the drawings, the elements of the present embodiment are not necessarily shown to scale. In addition, in order to make each drawing easy to see, some symbols may be omitted.

<First Embodiment>
FIG. 1 is a front view showing a fire extinguisher 100 of the present embodiment. FIG. 2 is a partial cross-sectional view showing a part of the fire extinguisher 100 from the front. FIG. 3 is a partial cross-sectional view showing the fire extinguisher valve body 70 and the fire extinguisher operation lever 30 from the front, excluding the safety plug 35, and FIG. 4 is a cross-sectional view showing the fire extinguisher valve body 70.

  A fire extinguisher 100 shown in FIGS. 1 and 2 is for a fire extinguisher connected to a known fire extinguisher storage container 10 filled with a fire extinguisher 60 (for example, a powder fire extinguishing agent) and an opening above the fire extinguisher storage container 10. A valve body 70, a fire extinguisher operating lever 30 for operating the fire extinguisher valve body 70, a siphon tube 20 for guiding the fire extinguisher 60 stored in the fire extinguisher storage container 10 to the fire extinguisher valve body 70, When the fire extinguisher valve body 70 is in an open state, the fire extinguisher hose 40 is connected to the siphon tube 20 so as to be able to flow. The extinguishing agent storage container 10 and the fire extinguisher valve body 70 are fixed by a known joining means such as screwing as in this embodiment. In addition, the vicinity of the spout of the fire extinguisher hose 40 is attached to the fire extinguisher storage container 10 in a detachable state by using an adhesive means such as a hook-and-loop fastener.

  Next, the fire extinguisher valve body 70 of the present embodiment will be described.

  The fire extinguisher valve body 70 according to the present embodiment includes a valve box 71, a valve rod 72 located in the valve box 71, a valve body 73 fixed to the valve rod 72, and a spring 74 that biases the valve rod 72. Prepare.

  The valve box 71 of this embodiment is made of polyamide 6, and is integrally molded by a known injection molding method using a plurality of partial molds. For this reason, the weight is significantly reduced as compared with a conventional valve box made of metal (generally, nonferrous metal such as aluminum or brass). In the present embodiment, the valve box 71 is integrally formed with the fixed lever 32 of the fire extinguisher operation lever 30.

  In addition, several functional parts are formed in the valve box 71. Specifically, the packing fixing portion 71a is for fixing the packing for restraining the tip of the siphon tube 20 and maintaining an airtight or liquid-tight state between the fire extinguisher storage container 10 and the fire extinguisher valve body 70. Used for. Further, the fire extinguisher 60 is discharged from the siphon tube 20 through the flow path 71b and the fire extinguisher hose 40 by operating the fire extinguisher operation lever 30.

  The valve stem 72 includes a rod-shaped portion 72a, a valve rod-side spring receiving portion 72b formed in a convex shape on the outer peripheral surface of the upper end of the rod-shaped portion 72a, and a valve body engaging portion 72c fixed to the valve body 73. . The valve rod 72 moves forward and backward while the rod-shaped portion 72a is in close contact with a part of the valve box 71 so that the extinguishing agent 60 inside the channel 71b does not leak. In order to secure a close contact state between the valve stem 72 and a part of the valve box 71, a means for sealing a known gap such as an O-ring is used. Further, a spring 74 is disposed between the valve box side spring receiving portion 71e and the valve stem side spring receiving portion 72b. Thereby, the valve stem 72 is urged in a direction in which the valve body 73 is in contact with the valve seat 71g (upward direction in FIG. 4).

  Further, the valve box 71 is formed with an activation lever engaging portion 71h for engaging with the activation lever 33 and a raising / lowering hook engaging portion 71i for engaging with the raising / lowering rod 34. For this reason, the fire extinguisher operation lever 30 described later can be easily combined.

  Next, a structure part in which a part of the pressure gauge 50 is fixed in the fire extinguisher valve body 70 will be described.

  FIG. 5 is an explanatory view showing a state in which the pressure gauge 50, the fire extinguisher valve body 70, and the restraining member 90 are disassembled. 6 is a back view showing the pressure gauge 50, and FIG. 7 is a perspective view thereof. FIG. 8 is a back view showing the fire extinguisher valve body 70.

  Further, FIG. 9 is a perspective view showing the restraining member 90, and FIG. 10 is a plan view thereof. 11 is a plan view showing the pressure gauge 50 and the fire extinguisher valve body 70 before being restrained by the restraining member 90. FIG. 12 is a plan view showing the pressure gauge 50 and the fire extinguisher valve body 70 being restrained by the restraining member 90. FIG.

  As shown in FIGS. 5 to 7, the pressure gauge 50 includes an insertion portion 51, a convex portion 53 formed integrally with the insertion portion 51, and a display portion 54. The insertion part 51 includes a cylindrical part 51a. Moreover, the convex part 53 is formed in the regular hexagonal column shape which has the same central axis as the central axis of the cylindrical part 51a in this embodiment. For example, a general-purpose nut may be combined with a screw attached to fix the display unit 54 when the pressure gauge 50 is manufactured, and this nut may serve as the convex portion 53.

  On the other hand, as shown in FIG. 8, the fire extinguisher valve body 70 includes an insertion portion 71 p that seals the cylindrical portion 51 a when the insertion portion 51 is inserted, and a fitting portion 71 q that fits the convex portion 53. Prepare. The inserted portion 71p serves as a communication hole for transmitting the internal pressure of the fire extinguisher 100. Further, the fitting portion 71q has 24 corners (four times the number of corners (6) of the convex portions 53) at equal angles around the central axis of the convex portion 53 when fitted to the convex portions 53. 71r is provided. That is, in the fitting portion 71q, the regular hexagonal concave portion corresponding to the convex portion 53 is substantially equiangularly spaced about the central axis of the concave portion (for example, a range of deviation of ± 5 degrees due to dimensional tolerance). Two are formed. By fitting the fitting portion 71q with the convex portion 53, rotation of a plane perpendicular to the insertion direction of the pressure gauge 50 can be prevented.

  In this embodiment, the pressure gauge 50 can be rotated every 30 degrees (360 degrees / 12 pieces) to perform alignment. This is very useful in the manufacturing process of the actual fire extinguisher 100. For example, if the convex portion 53 of the pressure gauge 50 is the above-described nut and is formed in a regular hexagonal column shape as shown in FIG. 6, the position of the apex of the regular hexagonal column varies depending on the tightening condition of the nut. It is common to occur. However, even in such a case, by forming the above-described fitting portion 71q, it can be prevented that the fitting portion 71q is inclined at an angle of 15 degrees or more, and is easy to see for the user of the fire extinguisher 100. A total of 50 can be installed. For example, if the pressure gauge 50 has been placed in a state of being inclined by 25 degrees, the pressure gauge 50 may be inserted again after being rotated by 30 degrees, and the pressure gauge 50 may be arranged in a state of being inclined by 5 degrees. it can.

  As shown in FIGS. 9 and 10, the restraining member 90 includes a main body 91 and two spherical or sectional arc-shaped protrusions 93 protruding from the main body 91 in the same direction. The main body portion 91 includes a restraining portion 92. The restraining portion 92 restrains the movement of the pressure gauge 50 in the insertion direction by engaging the insertion portion 51 of the pressure gauge 50 with a groove portion 52 formed in a circumferential shape in a cross section perpendicular to the insertion direction of the pressure gauge 50. To do.

  Further, the restraining member 90 has a guide portion 94 extending from the main body portion 91. Two guide portions 94 having the same number as the pressure gauge restricting guide grooves 71m are arranged in parallel to each other. Thus, since it has the guide part 94 inserted in the guide groove 71m for pressure gauge restraint, the positioning at the time of combining the restraint member 90 and the fire extinguisher valve body 70 becomes easy. Further, the constraining member 90 is formed by punching a general-purpose cold rolled steel plate (SPCC) to form the main body 91, the constraining portion 92, and the guide portion 94, and then forming the protrusion 93 by embossing. Finished by Thus, since the restraint member 90 can be formed by simple processing, the manufacturing cost can be greatly reduced.

  As shown in FIGS. 5 and 11, first, the insertion portion 51 including the groove portion 52 of the pressure gauge 50 is inserted in the direction of arrow C shown in FIG. 5 with respect to the insertion portion 71p. When inserting the pressure gauge 50, the pressure gauge 50 is inserted so that the convex part 53 fits into the fitting part 71q. For example, when the convex portion 53 does not fit into the fitting portion 71q, the pressure gauge 50 is oriented on a plane perpendicular to the insertion direction until the convex portion 53 is fitted into the fitting portion 71q. Rotate little by little in the desired direction. Thereby, the pressure gauge 50 can be fitted. With the insertion portion 51 of the pressure gauge 50 inserted in the inserted portion 71p in this way, the guide portion 94 of the restraining member 90 moves downward (from the arrow shown in FIG. 5) with respect to the pressure gauge restraining guide groove 71m. D direction).

  Here, a pressure gauge restraining guide groove 71m for holding a restraining member 90 for restraining movement of the pressure gauge 50 in the insertion direction and a pair of opposing pressure gauge restraining wall surfaces 71n are provided in the valve box 71. It is formed. In the present embodiment, two pressure gauge restraining guide grooves 71m are formed in parallel to each other on both sides of the insertion portion 71p. The pressure gauge restraint wall 71n is formed perpendicular to the insertion direction of the pressure gauge 50.

  Further, the distance h1 (see FIG. 10) between the bottom of the main body 91 of the restraining member 90 of the present embodiment and the apex of the protrusion 93 is between the pair of pressure gauge restraining walls 71n of the fire extinguisher valve body 70. The distance h3 (see FIG. 11) is about 0.1 mm to 0.2 mm longer. Therefore, when the guide portion 94 is guided by the pressure gauge restraining guide groove 71m and the restraining member 90 advances in the direction of the arrow D shown in FIG. 5, at least the tip of the projection 93 and one pressure gauge restraining wall surface 71n project. Hit. This prevents the restraint member 90 from proceeding in the direction of arrow D shown in FIG. In addition, as above-mentioned, the cross-sectional shape perpendicular | vertical to the pressure gauge restraint wall surface 71n of the projection part 93 is an arc shape. Therefore, the contact between the protrusion 93 and the one pressure gauge restraining wall 71n is minimized, and the restraining member 90 can be inserted into the fire extinguisher valve body 70 very easily. Damage to the fire extinguisher valve body 70 can be suppressed.

  When the constraining member 90 is further pushed in the direction of arrow D shown in FIG. 5 in a state where the projecting portion 93 and one pressure gauge constraining wall surface 71n abut, the one pressure gauge constraining wall surface 71n is pressed against the projecting portion 93. Therefore, the distance h3 between the pair of pressure gauge constraining wall surfaces 71n is widened by the elasticity of the fire extinguisher valve body 70. Then, the restraining member 90 further advances in the direction of arrow D shown in FIG. 5, and finally the restraining portion 92 engages with the groove portion 52. The engagement of the restraining portion 92 with the groove portion 52 can restrain the movement of the pressure gauge 50 in the direction of arrow C shown in FIG. 5, in other words, the movement of the pressure gauge 50 in the insertion direction. Preferably, the restricting portion 92 is engaged with the groove portion 52 in a state where the protrusion portion 93 is inserted into the groove portion 52 by adjusting the protruding height and width of the protrusion portion 93. In this way, the movement of the pressure gauge 50 in the insertion direction can be more reliably restrained.

  In addition, as shown in FIG. 12, the main body portion 91 and the protrusion 93 that are arranged by being pushed between the pair of pressure gauge constraining wall surfaces 71n are made of resin from the pair of pressure gauge constraining wall surfaces 71n. Is received between the pair of pressure gauge restraining wall surfaces 71n. Therefore, the positions of the main body 91 and the protrusion 93 are constrained when the main body 91 and the protrusion 93 are sandwiched between the pair of pressure gauge constraining wall surfaces 71n. In this way, the restraining member 90 is fixed in the fire extinguisher valve body 70.

  As described above, the pressure gauge 50 is fixed by being restrained in the insertion direction and the direction perpendicular to the insertion direction.

  The extinguisher hose 40 is inserted into a fire extinguisher hose insertion portion 71c connected to the flow path 71b and then restrained by the same restraining member as the restraining member 90 restraining the pressure gauge 50.

<Second Embodiment>
FIG. 13 is a back view showing the fire extinguisher valve body 270 according to the present embodiment.

  The fire extinguisher 200 of the present embodiment is the same as the fire extinguisher 100 of the first embodiment except that the fire extinguisher valve body 70 constituting the fire extinguisher 100 of the first embodiment is changed to a fire extinguisher valve body 270. Has the same configuration. Therefore, the description which overlaps with 1st Embodiment is abbreviate | omitted.

  As shown in FIG. 13, the fire extinguisher valve body 270 is different from the first embodiment in that a fitting portion 71 q fitted to the convex portion 53 is changed to a fitting portion 271 q fitted to the convex portion 53. Different from the fire extinguisher valve body 70. The fitting portion 271q includes six corner portions 271r (equal to the number of corners (six pieces) of the convex portion 53) at equal angles around the central axis of the convex portion 53 when fitted to the convex portion 53. Prepare. That is, the fitting portion 271q is formed with a regular hexagonal column-shaped concave portion corresponding to the convex portion 53. By fitting the fitting portion 271q with the convex portion 53, rotation of a plane perpendicular to the insertion direction of the pressure gauge 50 can be prevented.

  In the present embodiment, alignment can be performed by rotating the pressure gauge 50 every 60 degrees (360 degrees / 6 pieces). This is very useful in the manufacturing process of the actual fire extinguisher 200. However, since the fire extinguisher 100 of the first embodiment can rotate the pressure gauge 50 every 30 degrees and perform alignment, the inclination of the display unit 54 of the pressure gauge 50 can be finely adjusted. The fire extinguisher 100 of one embodiment is preferred.

<Third Embodiment>
FIG. 14 is a perspective view showing the back surface of the pressure gauge 350 of the present embodiment. FIG. 15 is a back view showing the fire extinguisher valve body 370 of the present embodiment.

  In the fire extinguisher 300 of the present embodiment, the pressure gauge 50 of the first embodiment is changed to a pressure gauge 350, and the fire extinguisher valve body 70 of the first embodiment is changed to a fire extinguisher valve body 370. Except for these points, it has the same configuration as the fire extinguisher 100 of the first embodiment. Therefore, the description which overlaps with 1st Embodiment is abbreviate | omitted.

  As shown in FIG. 14, in the pressure gauge 350, the convex portion 53 formed integrally with the insertion portion 51 of the first embodiment is changed to a convex portion 353 formed apart from the insertion portion 51. This is different from the pressure gauge 50 of the first embodiment. In the present embodiment, the convex portion 353 is formed in a cylindrical shape at a position that does not overlap the insertion portion 51 in a plan view in a direction perpendicular to the insertion direction of the insertion portion 51.

  On the other hand, as shown in FIG. 15, the fire extinguisher valve body 370 is different from the first fire extinguisher bulging part body 70 in that the fitting part 71q of the first embodiment is changed to a fitting part 371q. . In the present embodiment, the fire extinguisher valve body 370 includes a single fitting portion 371q that fits the convex portion 353. The fitting portion 371q can prevent rotation of a plane perpendicular to the insertion direction of the pressure gauge 350 by fitting the fitting portion 371q with the convex portion 353.

  In this embodiment, the fitting part 371q is single. For this reason, in the fire extinguisher 300 of this embodiment, the tilt of the display unit 54 of the pressure gauge 50 is performed by rotating the pressure gauge every 30 degrees as in the fire extinguisher 100 of the first embodiment. Cannot be fine-tuned. Therefore, the fire extinguisher 100 of the first embodiment is a more preferable aspect from the viewpoint that the pressure gauge can be easily aligned.

<Fourth Embodiment>
FIG. 16 is a back view showing the fire extinguisher valve body 470 of the present embodiment.

  The fire extinguisher 400 of the present embodiment has the same configuration as the fire extinguisher 300 of the third embodiment, except that the fire extinguisher valve body 370 of the third embodiment is changed to a fire extinguisher valve body 470. Yes. Therefore, the description which overlaps with 1st and 3rd embodiment is abbreviate | omitted.

  As shown in FIG. 16, the fire extinguisher valve body 470 includes eight pieces (eight times the number (one) of the convex portions 353) at equal angles on the same circumference around the central axis of the inserted portion 71 p. A fitting portion 471q is provided. The fitting portion 471q can prevent rotation of a plane perpendicular to the insertion direction of the pressure gauge 350 by fitting with the convex portion 353.

In this embodiment, the pressure gauge 350 can be rotated every 45 degrees (360 degrees / 8 pieces) to perform alignment. This is very useful in the manufacturing process of the actual fire extinguisher 400. That is, by providing the above-described four fitting portions 471q, it is possible to prevent the pressure gauge 350 from being placed in an inclined state of 22.5 degrees or more, and to install the pressure gauge 350 that is easy to see for the user of the fire extinguisher 400 become.

<Fifth Embodiment>
FIG. 17 is an explanatory view showing a state in which the pressure gauge 550, the fire extinguisher valve body 570, and the restraining member 90 are disassembled. 18 is a back view showing the pressure gauge 550, and FIG. 19 is a back view showing the fire extinguisher valve body 570. As shown in FIG.

  In the fire extinguisher 500 of this embodiment, the pressure gauge 50 of the first embodiment is changed to a pressure gauge 550, and the fire extinguisher valve body 70 of the first embodiment is changed to a fire extinguisher valve body 570. Except for these points, it has the same configuration as the fire extinguisher 100 of the first embodiment. Therefore, the description which overlaps with 1st Embodiment is abbreviate | omitted.

  As shown in FIG. 18, the pressure gauge 550 of the present embodiment is different from the pressure gauge 50 of the first embodiment in that the convex portion 53 of the first embodiment is changed to a concave portion 553. The concave portion 553 includes 24 corner portions 553a (four times the number of corners (6) of the fitting portions 571q) at equal angles around the central axis of the cylindrical portion 51a. The concave portion 553 has a regular polygonal concave portion corresponding to the fitting portion 571q (to be described later) substantially equiangularly spaced from the central axis of the concave portion (for example, a range of deviation of ± 5 degrees due to dimensional tolerance etc. ). Further, the concave portion 553 is formed integrally with the insertion portion 51.

  On the other hand, as shown in FIGS. 17 and 19, the fire extinguisher valve body 570 is for the fire extinguisher of the first embodiment in that the fitting portion 71q of the first embodiment is changed to the fitting portion 571q. Different from the valve body 70. In the present embodiment, the fitting portion 571q is a regular hexagonal columnar convex portion having the same central axis as the central axis of the cylindrical portion 51a when the concave portion 553 is fitted. By fitting the fitting portion 571q with the concave portion 553, rotation of a plane perpendicular to the insertion direction of the pressure gauge 550 can be prevented.

  Similarly to the first embodiment, in this embodiment, the pressure gauge 550 can be rotated every 30 degrees (360 degrees / 12 pieces) to perform alignment. Therefore, also in the present embodiment, the pressure gauge 550 can be attached in an appropriate direction as in the first embodiment.

<Sixth Embodiment>
FIG. 20 is an explanatory view showing a state in which the pressure gauge 650, the fire extinguisher valve body 670, and the restraining member 90 are disassembled. FIG. 21 is a back view showing the pressure gauge 650, and FIG. 22 is a back view showing the fire extinguisher valve body 670.

  In the fire extinguisher 600 of the present embodiment, the pressure gauge 50 of the first embodiment is changed to a pressure gauge 650, and the fire extinguisher valve body 70 of the first embodiment is changed to a fire extinguisher valve body 670. Except for these points, it has the same configuration as the fire extinguisher 100 of the first embodiment. Therefore, the description which overlaps with 1st Embodiment is abbreviate | omitted.

  As shown in FIG. 21, the pressure gauge 650 of the present embodiment is different from the pressure gauge 50 of the first embodiment in that the convex portion 53 of the first embodiment is changed to a concave portion 653. The pressure gauge 650 includes two concave portions 653 (two times the number (one) of the fitting portions 671q) at equal angles on the same circumference around the central axis of the cylindrical portion 51a. The recess 653 is formed away from the insertion portion 51. Further, in the present embodiment, the recess 653 is formed in a columnar shape at a position that does not overlap in a plan view in a direction perpendicular to the insertion direction of the insertion portion 51.

  On the other hand, as shown in FIGS. 20 and 22, the fire extinguisher valve body 670 is for the fire extinguisher of the first embodiment in that the fitting portion 71q of the first embodiment is changed to a fitting portion 671q. Different from the valve body 70. In the present embodiment, the fire extinguisher valve body 670 includes a fitting portion 671q that is a single convex portion that fits into one concave portion 653. By fitting the fitting portion 671q with the recess 653, rotation of a plane perpendicular to the insertion direction of the pressure gauge 650 can be prevented.

  In this embodiment, the pressure gauge 650 can be rotated every 180 degrees (360 degrees / 2 pieces) to perform alignment.

  By the way, in each embodiment mentioned above, although the valve box was made from the polyamide 6, it is not limited to this. For example, in addition to polyamide 6, it may be made of a resin such as a polyamide resin, a fluororesin, a phenol resin, or a polyethylene resin, or may be made of metal or non-metallic. However, polyamide 6 has a gas permeability that is about 1/40 times that of polyethylene, and has an advantageous feature that gas hardly permeates among resins. Furthermore, the polyamide 6 does not contain substances that are considered to have an adverse effect on the environment and the human body, such as phenolic resins such as formaldehyde and vinyl chloride. In addition, the polyamide 6 is low in cost compared to other resins. For the above reasons, it is considered preferable to employ a polyamide 6 valve box 72.

  Moreover, in each embodiment mentioned above, the convex part or recessed part 53,253,353,453,553,653 and the fitting part 71q, 271q, 371q, 471q, 571q, 671lang fitting to these are illustrated. However, it is not limited to these shapes. For example, it may be a combination of the convex portion 753 and the fitting portion 771q having the shape shown in FIG. 23, or a combination of the convex portion 853 and the fitting portion 871q having the shape shown in FIG. That is, as long as it is a combination of shapes in which the protruding portions 753a and 853a of the plane perpendicular to the insertion direction of the convex portions 753 and 853 and the corner portions 771s and 871s of the fitting portions 771q and 871q can be engaged, The effect equivalent to the embodiment is achieved. In addition, even if the above-mentioned convex part 753,853 is a recessed part, if a fitting part respond | corresponds to them, there will exist an effect equivalent to each above-mentioned embodiment.

  Moreover, in each embodiment mentioned above, although the movement of the insertion direction of the pressure gauges 50, 250, 350, 450, 550, 650 is restrained using the restraint member 90, the pressure gauge 50 is determined by other known restraining methods. , 250, 350, 450, 550, 650 can be restrained from moving in the insertion direction. For example, the pressure gauges 50, 250, 350, 450 and 450, 550, 650 and the valve boxes 71, 271, 371, 471, 571, 671 are provided with an adhesive to intervene the pressure gauges 50, 250, 350, 450. , 550, 650 may be restrained from moving in the insertion direction. As described above, modifications that exist within the scope of the present invention are also included in the claims.

  The present invention can be widely used as a fire extinguisher equipped with a pressure gauge.

It is a front view which shows one fire extinguisher of this invention. It is a fragmentary sectional view which shows a part of one fire extinguisher of this invention from the front. It is a fragmentary sectional view which shows the valve body for fire extinguishers and the operation lever for fire extinguishers from the front except a safety stopper. It is sectional drawing which shows the valve body for fire extinguishers. It is explanatory drawing which shows the state which decomposed | disassembled one pressure gauge of this invention, the valve body for fire extinguishers, and a restraint member. It is a reverse view which shows one pressure gauge of this invention. It is a perspective view which shows one pressure gauge of this invention. It is a reverse view which shows the valve body for one fire extinguisher of this invention. It is a perspective view which shows a restraint member. It is a top view which shows a restraint member. It is a top view which shows the pressure gauge and the fire extinguisher valve body before restraint by a restraint member. It is a top view which shows the pressure gauge after a restraint by a restraint member, and the valve body for fire extinguishers. It is a reverse view which shows the valve body for other fire extinguishers of this invention. It is a perspective view which shows the back surface of the other pressure gauge of this invention. It is a reverse view which shows the valve body for other fire extinguishers of this invention. It is a reverse view which shows the valve body for other fire extinguishers of this invention. It is explanatory drawing which shows the state which decomposed | disassembled the other pressure gauge of this invention, the valve body for fire extinguishers, and the restraint member. It is a reverse view which shows the other pressure gauge of this invention. It is a reverse view which shows the valve body for other fire extinguishers of this invention. It is explanatory drawing which shows the state which decomposed | disassembled the other pressure gauge of this invention, the valve body for fire extinguishers, and the restraint member. It is a reverse view which shows the other pressure gauge of this invention. It is a reverse view which shows the valve body for other fire extinguishers of this invention. It is explanatory drawing which shows the combination of the other convex part and fitting part of this invention. It is explanatory drawing which shows the combination of the other convex part and fitting part of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Fire extinguisher storage container 20 Siphon pipe | tube 30 Operation lever for fire extinguisher 32 Fixing lever 33 Starting lever 34 Tilting hook 35 Safety plug 40 Fire extinguisher hose 41, 52 Groove part 50,250,350,450,550,650 Pressure gauge 51 Insertion part 51a Cylindrical part 53,253,353,453,553,653,753,853 Convex part or concave part 54 Display part 60 Fire extinguisher 70,270,370,470,570,670 Fire extinguisher valve body 71,271,371,471 , 571, 671 Valve box 71a Packing fixing part 71b Flow path 71e Valve box side spring receiving part 71g Valve seat 71h Start lever engaging part 71i Lifting lever engaging part 71p Inserted part 71m Pressure gauge restraining guide groove 71n Pressure gauge Wall surface for restraint 71q, 271q, 371q, 471q, 571q, 671q, 7 71q, 871q fitting portion 71r, 271r corner portion 72 valve rod 72a rod-like portion 72b valve rod side spring receiving portion 72c valve body engaging portion 73 valve body 90 restraining member 91 main body portion 92 restraining portion 93 projecting portion 94 guiding portion 100, 200, 300, 400, 500, 600 Fire extinguisher 553a Corner part 753a, 853a Projection part 771s, 871s Corner part

Claims (5)

A pressure gauge having an insertion portion having a cylindrical portion and a fitted portion formed of a convex portion or a concave portion formed in the insertion direction of the insertion portion;
The insertion portion that seals the cylindrical portion when the insertion portion is inserted and the position of the fitting portion that is temporarily fitted are rotated by 30 degrees or 45 degrees, and then the 30 portion is again inserted. degrees or said provided at a position rotated the 45 degrees by fitting the fitted portion, a fire extinguisher valve having a fitting portion to prevent the rotation of the plane perpendicular to the insertion direction by the pressure gauge A fire extinguisher with a body. The fitted part is a regular polygonal columnar convex part having the same central axis as the central axis of the cylindrical part,
2. The fitting portion is formed by forming a plurality of regular polygonal column-shaped concave portions corresponding to the convex portions at substantially equal angular intervals around a central axis of the regular polygonal column-shaped convex portion to be inserted. Fire extinguisher as described in The fitting part is a regular polygonal columnar convex part having the same central axis as the central axis of the cylindrical part,
The fitting portion is formed by forming a plurality of concave portions having a regular polygonal column shape corresponding to the convex portions at substantially equal angular intervals around a central axis of the convex portion having the regular polygonal column shape to be inserted. The fire extinguisher according to 1. The fitted portion has the convex portion formed apart from the insertion portion,
In the fitting portion, a concave portion corresponding to the convex portion is separated from the insertion portion at substantially equal angular intervals on the same circumference centering on a central axis of a cylindrical portion sealed by the insertion portion. The fire extinguisher according to claim 1, wherein a plurality of fire extinguishers are formed. The fitting portion has the convex portion formed apart from the insertion portion,
The fitting portion has a recess corresponding to the convex portion spaced apart from the insertion portion at substantially equal angular intervals on the same circumference around the central axis of the cylindrical portion sealed by the insertion portion. The fire extinguisher according to claim 1, wherein a plurality of fire extinguishers are formed.

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