JPH0612353U - Pressure vessel lid stopper - Google Patents

Abstract

(57) [Summary] [Purpose] The installation and removal work is simple and easy, and it is possible to reliably prevent the lid body from shifting due to an increase in internal pressure. Also, when the internal pressure rises, the pressure is released and the internal pressure is kept constant. To be able to hold. [Structure] A lower surface of a collar portion 7 projecting from an outer peripheral surface of an opening of the container body 1, and an upper surface of a collar portion 9 projecting from an outer peripheral edge of a lid body 2 that hermetically seals the opening portion of the container body 1. Locking parts 14, 1
The circular plates 11 and 12 having 5 are arranged respectively. The circular plates 11, 1 are formed by a plurality of elastic locking pieces 13 formed in a substantially bow shape, the ends of which are locked by the locking portions 14, 15.
Hold 2 elastically.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a lid stopper device suitable for use in a pressure vessel such as a desiccator.

[0002]

[Prior art]

 The desiccator, which is mainly used to store solid substances in a dry state at room temperature, has a container body made of thick-walled glass whose upper surface is open, and the same as it is made of thick-walled glass, which hermetically closes the upper opening of the container body. It is used by placing a perforated plate inside the container body, placing the substance to be preserved on it, and placing a desiccant such as silica gel, anhydrous calcium chloride or concentrated sulfuric acid on the bottom side. It To seal the container body and lid, use the joint surface of the two as a sliding surface, and apply silicone oil to this sliding surface. In order to prevent the lid from slipping, the lid is tightly bound and fixed to the container body by an appropriate string member. That is, for example, when a corrosive liquid is put in the lower part of the perforated plate and the sample is placed in the upper part and the temperature is raised in a thermostatic chamber to generate a corrosive gas and a corrosion resistance test is carried out, the If the internal pressure of the desiccator rises, the lid will be lifted and displaced, so it was necessary to tie it up with the cord material.

[0003]

[Problems to be solved by the device]

 However, in the above-mentioned conventional desiccator, since the shape is circular and streamlined, there is a problem that the work of binding the container body and the lid with the string member is troublesome and easily loosened.

The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to easily and easily attach and remove, and to prevent the displacement of the lid body due to an increase in internal pressure. It is an object of the present invention to provide a lid stopper device for a pressure vessel that can be reliably prevented and that when the internal pressure rises, the pressure is released to the outside to keep the internal pressure constant.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention is directed to a lower surface of a collar portion projecting from an outer peripheral surface of an opening of a container body and a collar portion projecting to an outer peripheral edge of a lid body that hermetically seals the opening portion of the container body. An annular disc having locking portions is arranged on the upper surface of each of them, and the circular discs are elastically elasticized by a plurality of substantially elastic holding pieces whose end portions are locked to the locking portions. It was designed to be held. Also, the present invention has a plurality of strip-shaped extensions integrally formed by being radially formed of a soft elastic material, and each tip of each strip-shaped extension is provided with an elastic holding portion having a U-shaped cross section. The elastic holding section holds the container body and the joint end of the lid body that hermetically closes the opening of the container body. Further, the present invention comprises a first band attached to the container body side and a second band attached to the lid side which hermetically seals the opening of the container body. A plurality of hooks are radially provided on one of the bands via an elastic member, and a plurality of locking portions for locking the hooks are radially provided on the other side.

[0006]

[Action]

 In the present invention, the elastic holding piece elastically holds the upper and lower circular plates to fix the lid to the main body of the container, and when the inner pressure rises, the elastic holding piece extends to release the inner pressure to the outside. The elastic holding portion elastically holds the joint end portion of the container body and the lid body to fix the lid body to the container body, and when the inner pressure rises, the lid holds the lid body and expands to release the inner pressure to the outside. The first and second bands fix the lid to the container body by the engagement of the hook and the locking portion, and the elastic member expands as the internal pressure rises, thereby releasing the internal pressure to the outside.

[0007]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings. FIG. 1 is a sectional view showing a first embodiment of a pressure vessel lid stopper device according to the present invention. In the figure, 1 is a container body made of thick glass, 2 is a lid made of thick glass that hermetically closes the upper opening of the container body 1, and these constitute a desiccator 3. A porcelain porous plate 4 is arranged in the main body 1, a sample 5 is placed on it, and a desiccant 6 such as silica gel is arranged on the lower side. A flange 7 is integrally provided on the outer peripheral surface of the opening of the container body 1, and the upper surface of the flange 7 forms a sliding surface with the lid 2. The lid body 2 has a handle 8 projecting from the center of the upper surface, and a collar portion 9 is integrally provided on the outer peripheral portion, and the lower surface of the collar portion 9 is slidably engaged with the collar portion 7 of the container body 1. Forming a surface.

Reference numeral 10 denotes a lid stopper device for fixing the lid body 2 to the container body 1. The lid stopper device 10 is made of metal, resin, or the like respectively provided on the lower surface of the collar portion 7 and the upper surface of the collar portion 9. And a plurality of elastic holding pieces 13 (for example, three) that elastically hold the pair of circular plates 11 and 12. The circular plates 11 and 12 are formed in the same shape, and integrally have locking portions 14 and 15 that are bent and formed in a hook shape at the outer peripheral edge portions. In this case, the circular wheel plate 11 located below is brought into close contact with the lower surface of the collar portion 7 with the locking portion 14 facing downward, and the circular wheel plate 12 located above is arranged with the locking portion 15 facing upward. And is arranged on the collar portion 9. The elastic holding piece 13 is curved in a substantially arc shape by a leaf spring or the like, and is bent inward at the upper and lower ends into a substantially hook shape, so that the engaging portions 14, 15 of the circular plates 11, 12 are formed. Engagement portions 16 that respectively engage with are formed.

In the lid stopper device 10 having such a configuration, when the lid body 2 is fixed to the container body 1, the lid body 2 is placed on the upper opening of the container body 1 and then one of the circular plates is attached. 11 is fixed to or in close contact with the lower surface of the collar portion 7, the other circular plate 12 is placed on the collar portion 9, and then both end engaging portions 16 of the elastic holding piece 13 are attached to the circular plates 11, 12 respectively. It suffices to engage both of the locking portions 14 and 15 and elastically sandwich the both circular plates 11 and 12 by the elastic holding piece 13. When the elastic holding piece 13 is elastically deformed outward, it extends in the longitudinal direction and the distance between the engaging portions 16 at both ends becomes larger than the distance between the engaging portions 14 and 15, so that the engaging portion 16 is engaged. The parts 14, 15 can be easily engaged. When the pressure inside the desiccator 3 rises due to temperature rise, gas generation, etc., the lid 2 is pushed up. At this time, the elastic holding piece 13 extends in the longitudinal direction to release the internal pressure to the outside. Therefore, the rise in the internal pressure can be kept constant, and the desiccator 3 can be prevented from being broken.

2 and 3 are a plan view showing a second embodiment of the present invention and a sectional view taken along line III-III of FIG. In this embodiment, the lid 2 is fixed to the container body 1 by the band 20. The band 20 is made of a soft elastic material having excellent heat resistance in a Y-shape, and has three strip-shaped extensions 20A, 20B, 20C that intersect each other at an angle of 120 °, and a center (the strip-shaped extensions 20A, 20B, 20C) and a through hole 21 into which the handle 8 of the lid 2 is inserted, and a container body 1 and a lid 2 integrally provided at the tips of the strip-shaped extensions 20A, 20B, 20C, respectively. And an elastic holding portion 22 that elastically clamps the collar portions 7 and 9. The elastic holding portion 22 has a U-shaped cross section, and the distance between the pair of holding piece portions 22a and 22b that vertically oppose each other and sandwich the holding portions 7 and 9 is a natural state in order to obtain a required holding force. It is set to be slightly smaller than the sum of the plate thicknesses.

Also in the lid stopper device having such a configuration, since it is only necessary to elastically sandwich the collar portions 7 and 9 with the elastic holding portion 22, the fixing operation of the lid body 2 is easy as in the above-described embodiment. It is simple and easy, and can be securely fixed. Further, when the internal pressure rises, the elastic holding portion 22 extends to release the internal pressure to the outside, so that the internal pressure rise can be kept constant and the desiccator 3 can be prevented from being broken. To prevent.

4 to 6 are a sectional view showing a third embodiment of the present invention, a plan view of a first band, and a plan view of a second band. In this embodiment, a lid stopper device is constituted by a first band 31 mounted on the container body 1 side and a second band 32 mounted on the lid body 2 side that hermetically seals the opening of the container body 1. It is composed. The first band 31 is connected to a ring-shaped cord 31A fitted on the outer periphery of the body of the container body 1 at one end at equal intervals in the circumferential direction of the cord 31A and at the other end by a ring (locking). Part 33, each of which is attached, for example, three extension cord portions 34a, 34b, 34c. The second band 32 is connected to a small ring-shaped cord body 35 through which the handle 8 of the lid body 2 is inserted, and one end thereof is connected at equal intervals in the circumferential direction of the cord body 35, and the other end thereof is pulled by the ring 33. A hook 36 to be hung is provided with a plurality of hook cords 36 attached via springs 37, for example, three extension cord portions 35a, 35b, 35c. A height adjusting tool 38 is attached. The ridge 37 enables the lid body 2 to rise with an increase in the internal pressure of the desiccator 3, and keeps the increase in the internal pressure constant. In this embodiment, the engaging portion 33 is provided on the first band 31 and the hook 36 is attached to the second band 32 via the spring 37. However, it is needless to say that the reverse order is also possible.

[0013]

[Effect of device]

 As described above, according to the lid stopper device for a pressure vessel according to the present invention, the lid can be easily attached to the pressure vessel, the lid can be securely fixed to the vessel body, and when the internal pressure rises, It is safe because there is no risk of the container breaking because it is possible to keep the rise in internal pressure constant.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a first embodiment of a pressure vessel lid stopper device according to the present invention.

FIG. 2 is a plan view showing a second embodiment of the present invention.

3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a sectional view showing a third embodiment of the present invention.

FIG. 5 is a plan view of a first band.

FIG. 6 is a plan view of a second band.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container body 2 Lid body 3 Desiccator 7 Collar part 8 Handle 9 Collar part 10 Lid stop device 11, 12 Ring plate 13 Elastic holding piece 14, 15 Locking part 16 Engagement part 20 Band 20A, 20B, 20C Strip-shaped extension part 22 Elastic Holding Part 31 First Band 32 Second Band 33 Locking Part 36 Hook 37 Spring

Claims (3)

[Scope of utility model registration request] Claims: 1. Locking to a lower surface of a flange portion projecting from an outer peripheral surface of an opening of the container body, and an upper surface of a flange portion projecting to an outer peripheral edge of a lid for hermetically sealing the opening of the container body. Each of which has a circular ring plate, and each end of which is elastically held by the plurality of elastic holding pieces formed in a substantially arcuate shape that is locked to the locking portion. A lid stopper device for a pressure container, characterized in that an increase in internal pressure of the container body is made constant by extension of the piece. 2. A plurality of strip-shaped extensions are integrally formed by being radially formed of a soft elastic material, and an elastic holding portion having a U-shaped cross section is provided at the tip of each strip-shaped extension. A band is provided, and the container body and the joint end of the lid that hermetically closes the opening of the container body are elastically held by the elastic holding portion, and the expansion of the elastic holding portion raises the internal pressure of the container body. A lid stopper device for a pressure vessel, characterized in that 3. A first band attached to the container body side, and a second band attached to the lid side that hermetically seals the opening of the container body. A plurality of hooks are radially provided on one side of the container through elastic members, and a plurality of locking portions that lock the hooks are radially provided on the other side of the container body by extending the elastic members. A lid stopper device for a pressure vessel, characterized in that an increase in internal pressure is made constant.