JPH0524172Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention provides a drip-proof casing for accommodating equipment such as a thermometer, which improves the drip-proof effect with a simple configuration by using an eccentric cam, for example. It is related to.

[Prior Art] As shown in FIG. 4, a conventional drip-proof casing housing a thermometer to which the present invention is applied uses an O-ring 3 when fixing a thermometer main body 1 and a panel part 2.
is interposed between the thermometer main body 1 and the panel 2, and after temporarily fixing it with the screws 4, while pressing the panel part 2 toward the main body 1 side, the foot part 6 fixed to the panel 2 with the screw 5 is They are screwed together to maintain close contact between the main body 1 and the panel 2.

[Problems to be Solved by the Invention] In this conventional method, it is troublesome to tighten the screws while pressing the panel, and the panel is often screwed and fixed without sufficiently pressing the O-ring. For this reason, the drip-proof performance is unstable and the work is labor-intensive.

The present invention has been proposed in view of these points, and aims to provide a drip-proof casing that has a simple configuration, is easy to disassemble and assemble, and can provide a reliable drip-proof effect.

[Means for Solving the Problem] As a means for solving this problem, the drip-proof casing of this embodiment includes a casing main body having an opening, a lid that closes the opening, and a lid. an elastic body provided in an annular shape between the body and the end face of the opening and capable of liquid-tightly holding the lid and the opening; and an engaging portion that temporarily fastens the housing body and the lid. a fixing member connected to the lid, extending toward the casing main body when viewed from the lid, and having at least one hole; and a fixing member provided through a through hole drilled in the casing main body. It consists of an eccentric cam, which is provided at the end of the rotating shaft, and the rotating shaft is eccentric and has a cylindrical part that engages with the hole of the fixing member, and when the eccentric cam rotates, the fixing member moves the lid toward the inside of the casing body using the locking portion as a fulcrum, and the casing body and the lid are fluid-tightly fixed via an elastic body.

[Operation] The bracket moves by the rotation of the eccentric cam and the panel is pulled toward the main body, so a pressing force acts between the panel and the main body without pressing the panel surface.
The O-ring is sufficiently compressed to provide a sufficient drip-proof effect.

[Embodiments] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows an embodiment of the present invention, in which an O-ring 3 is disposed between a thermometer main body 1 and a display panel section 2 to which a temperature display panel 2a is attached, and a liquid-tight structure is shown. It is becoming. Incidentally, reference numeral 4 denotes a temporary fixing screw, which is used for temporarily fixing the main body 1 and the display panel section 2 together. Reference numeral 7 denotes a bracket, which is fixed to the display panel section 2 with screws 12. 8 is a cam portion of the eccentric cam, and 9 is a shaft portion of the eccentric cam. The cam part 8 is the bracket 7
The shaft portion 9 engages with the opening 15 provided in the
is engaged with a perforation 19 provided in the main body 1.
Reference numeral 11 is a screw, which is used to fix the bracket 7 to the main body 1 after tightening by an eccentric cam. 10 is a blind lid, which is attached after the bracket 7 is fixed.

In addition, there is a dry cell storage section 20 at the top of the main body 1.
The dry battery stored in the dry battery storage part 20 is secured to the dry battery storage part lid 21 which is fixed to the main body 1 with bolts 22.
Fixed by An O-ring 23 is disposed between the dry battery storage lid 21 and the main body 1 to keep them liquid-tight. Furthermore, a substrate 25 is fixed to the lower part of the display panel section 2 with screws 24, and an electric circuit 26 is disposed on the substrate 25. This board 25 is positioned and fixed by the board locking recess 27 of the main body 1.

FIG. 2a is a front view of the eccentric cam 14, showing a groove 13 formed in the shaft portion 9 for turning with a tool such as a screwdriver.

FIG. 2b is a side view of the eccentric cam 14, showing that the cam part 8 is connected to the shaft part 9.

FIG. 3 is a plan view showing the bracket 7 in detail, showing the opening 15 that engages with the cam part 8 and the screw 1.
Hole 1 for tightening to display panel part 2 at 2
Holes 16 for fixing the bracket 7 to the main body 1 with screws 11 and 7 are shown.

When assembling the thermometer, the bracket 7 and the substrate 25 are attached to the display panel section 2, and the display panel section 2 is temporarily fixed to the thermometer main body 1 with screws 4. Thereafter, the eccentric cam 14 is rotated to pull the display panel portion 2 coupled to the bracket 7 toward the main body 1, and then the bracket 7 and the main body 1 are fixed with screws 11. Then, the dry battery is stored in the dry battery storage part 20, and the dry battery storage part lid 21 is fixed to the main body 1 with bolts 22.

[Effects of the invention] As described above, according to the invention, it is possible to obtain a drip-proof casing that has a simple configuration, is easy to disassemble and assemble, and has a reliable drip-proof effect, and is extremely effective in practical use. Useful.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of one embodiment of the present invention;
Figure a is a front view of the eccentric cam of this embodiment, Figure 2 b is a side view of the eccentric cam of this embodiment, Figure 3 is a plan view of the bracket of this embodiment, and Figure 4 is a partial cross section of the conventional example. FIG. In the figure, 1...Thermometer body, 2...Display panel section, 3, 23...O ring, 4, 5, 11, 1
2, 24... Screw, 7... Bracket, 8... Cam part, 9... Shaft part, 10... Blind lid, 14... Eccentric cam, 15... Opening, 19... Perforation, 20...
Dry cell storage section, 21...Dry cell storage section lid, 22
...Volt, 25... Board, 26... Electric circuit.

Claims (1)

[Scope of utility model registration request] A housing body having an opening, a lid that closes the opening, and an annular structure provided between the lid and the end surface of the opening to keep the lid and the opening liquid-tight. an elastic body to be obtained, a locking part for temporarily fixing the casing body and the lid body, and a locking part connected to the lid body and extending in the direction of the casing body when viewed from the lid body, and having at least one hole. a fixing member, a rotating shaft provided through a through hole drilled in the housing body, and a rotating shaft provided at the end thereof, eccentric to the rotating shaft and engaging with the hole of the fixing member. It consists of an eccentric cam consisting of a cylindrical part,
As the eccentric cam rotates, the fixing member moves the lid toward the inside of the casing body using the locking portion as a fulcrum, and liquid-tightly fixes the casing body and the lid via the elastic body. A drip-proof casing featuring the following features: