CN101006277A - Bolt falling preventive structure and hold ring - Google Patents
Bolt falling preventive structure and hold ring Download PDFInfo
- Publication number
- CN101006277A CN101006277A CNA2005800286205A CN200580028620A CN101006277A CN 101006277 A CN101006277 A CN 101006277A CN A2005800286205 A CNA2005800286205 A CN A2005800286205A CN 200580028620 A CN200580028620 A CN 200580028620A CN 101006277 A CN101006277 A CN 101006277A
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- bolt
- retaining ring
- hole
- buckling part
- main body
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- 230000003449 preventive effect Effects 0.000 title claims abstract description 24
- 229920001971 elastomer Polymers 0.000 claims description 11
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 10
- 229910052731 fluorine Inorganic materials 0.000 claims description 10
- 239000011737 fluorine Substances 0.000 claims description 10
- 239000005060 rubber Substances 0.000 claims description 10
- 229920000459 Nitrile rubber Polymers 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 238000003780 insertion Methods 0.000 abstract description 4
- 230000037431 insertion Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000605 extraction Methods 0.000 abstract 1
- 239000004065 semiconductor Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 239000002245 particle Substances 0.000 description 9
- 238000012423 maintenance Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
- F16B41/002—Measures against loss of bolts, nuts or pins
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
- Bolts, Nuts, And Washers (AREA)
- Forging (AREA)
Abstract
A bolt falling preventive structure and a hold ring used for a semiconductor manufacturing apparatus, enabling the easy extraction and insertion of the bolt while maintaining a necessary holding force, and manufacturable at low cost. A seat hole (12a') with a diameter larger than that of a screw insert hole (12) is formed in the surface of a fixed body, in which the screw insert hole (12) for passing a body fixing bolt (10) therein is formed, on the opposite side of the surface thereof in contact with the head of the body fixing bolt (10). The hold ring (13) formed in a cylindrical shape on the outer periphery, having a rear end part with a diameter larger than the inner diameter of the seat hole (12a), having a tip part with a diameter equal to or smaller than the inner diameter of the seat hole (12a), and having, at the tip part, a bolt engagement part (13a) engaged with the ridge part of the body fixing bolt (10) is fitted to the seat hole (12a). Thus, the body fixing bolt (10) can be prevented from falling.
Description
Technical field
The present invention relates to be installed on the tapped through hole as the mounting hole that is formed with the body that is fixed that makes the tapped through hole that bolt connects, be used to prevent the bolt falling preventive structure that comes off and the retaining ring of bolt.
Background technique
For example, the gas integrated unit that uses in semiconductor-fabricating device etc. are in order to require than higher in the past level of integration, in most cases to use as the state that hangs on the wall.Therefore, the bolt that in described parts fixing, uses, in most cases horizontal or under be screwed into.
Therefore, in as patent documentation 1, take to improve the method for operation in the disclosed method by temporary fixed bolt.
Shown in the figure of patent documentation 1, it is amplified detailed figures be shown in Figure 12, below carry out its explanation.
Be located at the bolt axial region through hole 112 in the mounting flange portion 11 of open and close valve etc., near intermediate portion and underpart, be provided with end difference 112a, end difference 112b, and to make the underpart be maximum diameter.O shape ring 111 embeds and is blocked by the end difference 112a of intermediate portion from the lower end of bolt axial region through hole 112, and has O shape to encircle prevention lining 113 from the embedding of big footpath side.Thus, form O shape ring embedding annular recessed portion 115 by the end difference 112a of intermediate portion, the upper surface of lining 113 and the circumferential surface of bolt axial region through hole 112.
The underpart of lining 113 be provided with the lower end near the lip part 11 of end difference 112b butt.And, being provided with circular protrusion 117 at the intermediate portion of lining 113, described circular protrusion 117 has the big a little external diameter of diameter than the bolt axial region through hole 112 of inlay busher 113.And during forcibly from the big footpath side inlay busher 113 of bolt axial region through hole 112, lip part 11 is blocked by near the end difference 112b the lower end, thereby circular protrusion 117 is crushed and realizes that coming off of lining 113 prevents.
Therefore, O shape ring 111 can not come off.The internal diameter of O shape ring 111 is a little littler than the external diameter of the axial region of main body fixing bolt 10.Because O shape ring 111 has elasticity, thereby forcibly the axial region of main body fixing bolt 10 to be inserted O shape ring 111 be very easy.
And reverse main body fixing bolt 10 and during with its never illustrated tapped hole dismounting, because of the elastic force of O shape ring 111, main body fixing bolt 10 can not break away from from O shape ring 111.Therefore, even under situation, can not lose main body fixing bolt 10 with the vertical configuration disposal subject yet.
And, also use plate to carry out temporary fixed method just like patent documentation 2 describedly.Introduce patent documentation 2 at Figure 13, below carry out its explanation.
In Figure 13 A, have the fixedly mounting plate 121a of usefulness in the end of the housing main body 121 of equipment etc., utilize screw 122 to be connected on the base 123 by plate 124.On the mounting plate 121a of housing main body 121, have jut 121c across jacket 121b in the inboard, have hole 121d in the outside, be provided with slit 121e in the lower end of jacket 121b.
In screw 122, have screw body 122a shown in Figure 13 C, columnar portion 122b that diameter is A, have the degree of depth less than the hole 121d of housing main body 121 with crest footpath B, the effective length L of the tapped hole 123a engagement of base 123, and with hole 121d can free chimeric screw section 122c.
And shown in Figure 13 B, plate 124 has can be by the thickness of slab t of slit 121e, at one end portion is provided with housing main body 121d jut 121c and holds the chimeric fixing fastening hole 124a in play ground, on the other end, on the position that the hole 121d with housing main body 121 coincide, be provided with the through hole 124b that the aperture is C.Thickness of slab t is less than the worm tooth pitch P of screw 122, the aperture C of through hole 124b is greater than the drum diameter A of threaded body 122a and less than crest footpath B, through hole 124b and screw section 122c are screwed togather and when being positioned at columnar portion 122b, though screw 122 its columnar portion 122b slide, can not contact worm tooth and slave plate 124 comes off in through hole 124b.
In said structure, plate 124 is passed through from the slit 121e of jacket 121b, make its fastening hole 124a and jut 121c fastening, on through hole 124b, be screwed into screw 122, temporarily as shown in FIG. 13A, through hole 124b is positioned on the columnar portion 122b, and makes screw section 122c in the face of columnar portion 121d, though thereby screw 122 can not come off from housing main body 121 freely in the through hole 124b of plate 124 slip.Then, this housing main body 121 is arranged on the base 123 and when tightening, screw section 122c is guided by hole 121d and can mesh with tapped hole 123a simply.And, prevent coming off, losing of screw 122 thus.
Patent documentation 1: the spy opens the 2002-317809 communique
Patent documentation 2: the spy opens flat 5-1711 communique
But, there are the following problems in previous methods point.
In the method for patent documentation 1 because the axial regions that keep main body fixing bolts 10 with O shape ring 111 are as prerequisite, thereby O shape ring 111 width can limit main body fixing bolt 10.
When this O shape ring 111 encircled 111 internal diameter size if not the axial region radius vector direction expansion O shape of encircling 111 o'clock main body fixing bolts 10 as main body fixing bolt 10 insertion O shapes, O shape ring 111 just can not be brought into play confining force.
That is, itself resiliently deformable takes place by O shape ring 111, stationary body fixing bolt 10, the tangent line part of the axial region of main body fixing bolt 10 and O shape ring 111 is with the strongest power extruding axial region.
Therefore, main body fixing bolt 10 encircles at 111 o'clock by O shape, because that O shape is encircled is 111 compacted, thereby is difficult to extract and inserts main body fixing bolt 10.And, because the worm tooth of main body fixing bolt 10 part is carried out the line contact in the inner-diameter portion whose of O shape ring 111, cut the internal surface of O shape ring 111 when loading and unloading, thereby have the possibility that produces particle.Consider and in the gas integrated unit that is used for semiconductor-fabricating device etc., use this device, owing to the use in the purifying chamber as prerequisite, thereby do not wish the generation of particle.
And structurally, must squeeze into and prevent O shape ring 111 linings that come off 113, its result increases the parts number of packages, and for the processing of lining 113 owing to the circular protrusion 117 that carries out preventing coming off, thereby cost also uprises.
In the method for patent documentation 2, think because in order to keep screw 122, only prepare plate 124, thereby it is respond well under situation as patent documentation 2, and since on the screw body 122a of screw 122 the through hole 124b of insert plate 124, thereby the situation of screw 122 cutting plates 124 etc. is also few when loading and unloading.
And,, thereby think and make worm tooth pass through also to be difficult to produce particle under the situation of plate 124 because the thickness of plate 124 is less than the worm tooth pitch P.
But, under the situation on the module that is applied to gas integrated unit etc., when smooth flange surface upper mounting plate 124 such as open and close valve, mass flow controller, structurally need the part of suitable mounting plates 124 such as slit 121e, jut 121c.Therefore, must increase component parts, processing, thereby cause fabricating cost to rise.And, owing to be the equipment that in the purifying chamber, uses, thereby do not wish on flange surface, to increase concavo-convex that particle etc. is detained easily.
Summary of the invention
The present invention makes in order to address the above problem, and its purpose is to provide and keeps necessary confining force and that extracting of bolt inserted is easy, cheap, and has the bolt falling preventive structure and the retaining ring of the mechanism that is difficult to produce particle in use.
Bolt falling preventive structure of the present invention and retaining ring have following structure:
(1) a kind of bolt falling preventive structure, it is characterized in that, be formed with the body that is fixed that makes the tapped through hole that bolt connects, be formed with the diameter seat hole bigger with surface than above-mentioned tapped through hole with a side of the surface opposite of bolt head butt, keep by the above-mentioned relatively seat of the shape of profile hole, and the retaining ring that is formed with the bolt buckling part that fastens with the crest portion of above-mentioned bolt in inside is installed in the above-mentioned seat hole, thereby prevents coming off of above-mentioned bolt.
The bolt buckling part that fastens in this crest alleged and bolt portion is following parts: the tooth bottom that enters bolt by a part that makes the bolt buckling part, promptly, the most inboard part by being positioned at the bolt buckling part with the axle of bolt as the diameter of a circle at center diameter less than the crest portion of bolt, the bolt buckling part is stuck in the crest portion of bolt thus, stay bolt and prevent to come off.Therefore, the tooth bottom that this statement that fastens with the crest portion of bolt renames as with bolt fastens, and also is equivalent.
(2) in (1) described bolt falling preventive structure, it is characterized in that, the periphery of above-mentioned retaining ring is a drum, the diameter of rearward end is greater than the internal diameter in above-mentioned seat hole, the diameter of front end is identical or littler with the internal diameter in above-mentioned seat hole, is formed with the bolt buckling part that the crest portion with bolt fastens at above-mentioned front end.
(3) in (1) or (2) described bolt falling preventive structure, it is characterized in that the thickness of above-mentioned bolt buckling part is less than the pitch of above-mentioned bolt.
In (1) or (2) or (3) described bolt falling preventive structure, it is characterized in that (4) material of above-mentioned retaining ring is fluorine rubber or nitrile butadiene rubber.
(5) a kind of retaining ring is used for keeping being installed in the bolt of mounting hole, it is characterized in that, keeps by the above-mentioned relatively mounting hole of the shape of profile, is formed with the bolt buckling part that the crest portion with above-mentioned bolt fastens in inside.
(6) in (5) described retaining ring, it is characterized in that, the periphery of above-mentioned retaining ring is a drum, the diameter of rearward end is greater than the internal diameter of above-mentioned mounting hole, the diameter of front end is identical with the internal diameter of above-mentioned mounting hole or littler, is formed with the bolt buckling part that fastens with the crest portion of bolt at above-mentioned front end.
(7) in (5) or (6) described retaining ring, it is characterized in that the thickness of above-mentioned bolt buckling part is less than the pitch of above-mentioned bolt.
In (5) or (6) or (7) described retaining ring, it is characterized in that (8) material is fluorine rubber or nitrile butadiene rubber.
(9) in each the described bolt falling preventive structure in (1) to (4), it is characterized in that the shape of the above-mentioned bolt buckling part of above-mentioned retaining ring is formed by a plurality of projections, the crest portion of above-mentioned projected front ends portion and above-mentioned bolt fastens.
(10) in each the described retaining ring in (5) to (8), it is characterized in that the shape of the above-mentioned bolt buckling part of above-mentioned retaining ring is formed by a plurality of projections, the crest portion of above-mentioned projected front ends portion and above-mentioned bolt fastens.
The invention effect
The bolt falling preventive structure with said structure and the action effect of retaining ring are described.
In bolt falling preventive structure of the present invention and retaining ring,
(1) owing to is following structure: it is characterized in that, be formed with the body that is fixed that makes the tapped through hole that bolt connects, be formed with the diameter seat hole bigger with surface than above-mentioned tapped through hole with a side of the surface opposite of bolt head butt, keep by the above-mentioned relatively seat of the shape of profile hole, and the retaining ring that is formed with the bolt buckling part that fastens with the crest portion of above-mentioned bolt in inside is by being installed in the above-mentioned seat hole, thereby prevent coming off of above-mentioned bolt, thereby play following excellent results: the shape of the profile by retaining ring remains on the seat hole that body had that is fixed with retaining ring itself, the bolt buckling part that retaining ring had, keep bolt by tooth bottom and the crest portion fastening that enters bolt, when extracting inserting bolt, retaining ring can not come off from the seat hole or rotate, need as the downward posture of the head of bolt of the body that fixedly is fixed under under the situation of installing, bolt can not come off yet.
(2) in (1) described bolt falling preventive structure, owing to it is characterized in that, the periphery of above-mentioned retaining ring is a drum, the diameter of rearward end is greater than the internal diameter in above-mentioned seat hole, the diameter of front end is identical or littler with the internal diameter in above-mentioned seat hole, be formed with the bolt buckling part that fastens with the crest portion of bolt at above-mentioned front end, thereby play following excellent results: though need as the downward posture of the head of the bolt of the body that fixedly is fixed under under the situation of installing, bolt can not come off yet, can prevent coming off of bolt so that very simple processing such as a hole to be set, can cheapness carry out.
(3) in (1) or (2) described bolt falling preventive structure, owing to it is characterized in that, the thickness of above-mentioned bolt buckling part is less than the pitch of above-mentioned bolt, thereby play following excellent results: the confining force that can keep needed bolt, and extracting of bolt inserted easily, because of the thin thickness easy deformation, because the bolt buckling part embeds along bolt tooth bottom, and fasten, thereby can suppress the bolt buckling part to be butted on the crest portion of bolt and the generation of cutting the particle that the reason of retaining ring etc. causes with the crest portion of bolt.
(4) in (1) or (2) or (3) described bolt falling preventive structure, owing to it is characterized in that, the material of above-mentioned retaining ring is fluorine rubber or nitrile butadiene rubber, thereby play following excellent results: heat resistance is good, and suitably have deformability, produce needed bolt confining force by its elastic force.
(5) owing to be a kind of retaining ring, its maintenance is installed in the bolt in the mounting hole, it is characterized in that, keep by the above-mentioned relatively mounting hole of the shape of profile, be formed with the bolt buckling part that the crest portion with above-mentioned bolt fastens in inside, thereby play following effect: install easily, be suitable for mounting hole, even thereby also can not break away under the situation of extracting insertion of bolt carrying out from main body by elastic force itself.
(6) in (5) described retaining ring, owing to it is characterized in that, the periphery of above-mentioned retaining ring is a drum, the diameter of rearward end is greater than the internal diameter of above-mentioned mounting hole, the diameter of front end is identical with the internal diameter of above-mentioned mounting hole or littler, be formed with the bolt buckling part that fastens with the crest portion of bolt at above-mentioned front end, thereby play following excellent results: the shape of the profile by retaining ring remains on mounting hole with retaining ring itself, the bolt buckling part fastens with crest portion by the tooth bottom that enters bolt and keeps bolt, when extracting inserting bolt, retaining ring can not come off from the seat hole or rotate, need as the downward posture of the head of bolt of the body that fixedly is fixed under under the situation of installing, bolt can not come off yet.
(7) owing to be following retaining ring: in (5) or (6) described retaining ring, it is characterized in that, the thickness of above-mentioned bolt buckling part is less than the pitch of above-mentioned bolt, thereby plays following effect: keep the confining force of sufficient bolt, and extracting of bolt inserted easily.
(8) in (5) or (6) or (7) described retaining ring, owing to it is characterized in that material is fluorine rubber or nitrile butadiene rubber, thereby it is good to play heat resistance, and produce the good effect of the confining force of sufficient bolt.
(9) in each the described bolt falling preventive structure in (1) to (4), owing to it is characterized in that, the shape of the above-mentioned bolt buckling part of above-mentioned retaining ring is formed by a plurality of projections, above-mentioned projected front ends portion enters the tooth bottom of above-mentioned bolt and fastens with crest portion, thereby play following good effect: when extracting inserting bolt, retaining ring can not come off from the seat hole or rotate, need as the downward posture of the head of bolt of the body that fixedly is fixed under under the situation of installing, bolt can not come off.And, can easily carry out the adjustment of the confining force that retaining ring keeps the bolt of the body that fixedly is fixed by the projection number of increase and decrease bolt buckling part.Adopt this structure, owing to when making retaining ring, can carry out the adjustment of confining force, thereby play and make effect easy to manufacture by the projection number.
(10) in each the described retaining ring in (5) to (8), owing to it is characterized in that, the shape of the above-mentioned bolt buckling part of above-mentioned retaining ring is formed by a plurality of projections, the crest portion of above-mentioned projected front ends portion and above-mentioned bolt fastens, thereby play following good effect: when extracting inserting bolt, retaining ring can not come off from the seat hole or rotate, need as the downward posture of the head of bolt of the body that fixedly is fixed under under the situation of installing, bolt can not come off yet.And, can easily carry out the adjustment of the confining force that retaining ring keeps the bolt of the body that fixedly is fixed by the projection number of increase and decrease bolt buckling part.Adopt this structure, owing to when making retaining ring, can carry out the adjustment of confining force, thereby play and make effect easy to manufacture by the projection number.
Description of drawings
Fig. 1 is the front portion sectional view of anti-locking mechanism of bolt falling and retaining ring.
Fig. 2 A is the part details drawing of flange portion of the body that is fixed of anti-locking mechanism of bolt falling and retaining ring.
Fig. 2 B is the component diagram of the retaining ring of anti-locking mechanism of bolt falling and retaining ring.
Fig. 3 is the perspective view of the retaining ring of the first embodiment of the present invention.
Fig. 4 is the perspective view of the retaining ring of the second embodiment of the present invention.
Fig. 5 is the top view of the retaining ring of the third embodiment of the present invention.
Fig. 6 represents the retaining ring of the third embodiment of the present invention is installed on the body that is fixed, and the assembling view of AOA section under the state of inserting bolt, Fig. 5.
Fig. 7 is the perspective view of the retaining ring of the fourth embodiment of the present invention.
Fig. 8 is that the retaining ring with the fourth embodiment of the present invention is installed on the body that is fixed, and the assembling view under the state of inserting bolt.
Fig. 9 is the top view of the retaining ring of the fifth embodiment of the present invention.
Figure 10 is that the retaining ring with the fifth embodiment of the present invention is installed on the body that is fixed, and the assembling view under the state of inserting bolt.
Figure 11 is the top view of the retaining ring of the sixth embodiment of the present invention.
Figure 12 is the front section view of the patent documentation 1 relevant with anti-locking mechanism of bolt falling and retaining ring.
Figure 13 A is the front section view of the patent documentation 2 relevant with anti-locking mechanism of bolt falling and retaining ring.
Figure 13 B is the component diagram of the patent documentation 2 relevant with anti-locking mechanism of bolt falling and retaining ring.
Figure 13 C is the side view of the bolt of use in the patent documentation 2 relevant with anti-locking mechanism of bolt falling and retaining ring.
Label declaration
10 main body fixing bolts
11 mounting flange portions
12 tapped through holes
12a seat hole
The 12b step surface
13 retaining rings
13a bolt buckling part
The 13b second bolt buckling part
The θ angle
L1 rearward end diameter
L2 front end diameter
L3 retaining ring height
L4 seat hole depth
L5 thickness
L6 seat bore dia
L7, L7a, L7b bolt buckling part internal diameter
P tip of thread pitch
Embodiment
About bolt falling preventive structure of the present invention and retaining ring, enumerate specific mode, and be elaborated with reference to the accompanying drawings.
First embodiment
Fig. 1 is the front portion sectional view of anti-locking mechanism of bolt falling of the present invention and retaining ring, particularly, be provided in a side of the module of the gas integrated units that use in the semiconductor-fabricating device etc., i.e. be fixed sectional view in the mounting flange portion 11 of open and close valve, flowmeter, mass flow controller etc. of body as a plurality of tapped through holes 12 parts of mounting hole.By inserting main body fixing bolt 10, above-mentioned module is installed on not shown attachment rail, the stream piece at this tapped through hole 12 (being called tapped through hole 12 later on) as mounting hole.
Fig. 2 is its part details drawing and component diagram.As the module of gas integrated unit the mounting flange portion 11 of open and close valve, mass flow controller on be provided with the tapped through hole 12 of a plurality of Fig. 2 A, with with the surface of the surface opposite side of the head butt of main body fixing bolt 10 on, big and seat hole depth is the seat hole 12a of L4 degree than tapped through hole 12 to be formed with diameter.
The retaining ring 13 of Fig. 2 B, periphery is a drum, rearward end diameter L1 is greater than the internal diameter of seat hole 12a, and front end diameter L2 is identical or littler than it with the internal diameter of seat hole 12a, is formed with the tooth bottom that enters main body fixing bolt 10 and the bolt buckling part 13a that fastens with crest portion on front end.The height of retaining ring 13 is a retaining ring height L3 degree, and the degree for shorter than seat hole depth L4 a little about external diameter, makes rearward end diameter L1 greater than front end diameter L2, and the tapering that angle is θ is set.And the thickness L5 of the bolt buckling part 13a of retaining ring 13 is less than the worm tooth pitch P.
For example, when establishing employed main body fixing bolt 10 for the bolt of M5, rearward end diameter L1 becomes φ 7.7mm, front end diameter L2 becomes φ 7.4mm, and seat bore dia L6 becomes φ 7.5mm, for height, retaining ring height L3 becomes 3.7mm, and seat hole depth L4 becomes 4mm.And the angle θ of tapering is approximately 2 °, in the present hole 12a of elastic force maintenance by retaining ring 13.Main body fixing bolt 10 is owing to be M5, thereby the worm tooth pitch P is 0.5mm, and because the thickness L5 of bolt buckling part 13a is set to about 0.5mm, thereby fastens with crest portion along the tooth bottom of main body fixing bolt 10.In addition, the result of trial-production, because the thickness L5 of buckling part 13a forms suitable confining force when 7/10ths following degree of worm tooth pitch P, thereby to be made as about 63% of worm tooth pitch P be 0.5mm.
And, consider elasticity and heat resistance for the material of retaining ring 13, use fluorine rubber.The hardness of fluorine rubber is considered the confining force among deformability and the present hole 12a, and use hardness is 70 raw material.In addition, from elasticity and stable on heating meaning, also can utilize can be at the nitrile butadiene rubber (NBR) of higher temperature use.
Described parts constitute as illustrated in fig. 1, and retaining ring 13 is gone into from the 12a side pressure of seat hole, contact with step surface 12b and keep in the present hole 12a.When main body fixing bolt 10 inserted in the tapped through holes 12, bolt buckling part 13a embedded the tooth bottom of the screw section of main body fixing bolt 10 and divides, and constituting comes off prevents structure and keep main body fixing bolt 10 with suitable confining force.Main body fixing bolt 10 because seat hole depth L4 is so not dark, even thereby main body fixing bolt 10 be not the Full Thread FT type, also remain on the crest portion of screw section, rather than in imperfect thread portion.In addition,, the tapering that angle is θ is set, thereby is pressed into easily in the hole 12a, and be difficult to break away from owing in the external diameter of retaining ring 13, make rearward end diameter L1 greater than front end diameter L2.Thus, insert main body fixing bolt 10, also produce the confining force of the degree that prevents that retaining ring 13 from becoming flexible even extract.
Owing to have aforesaid structure, thereby for example the not shown open and close valve as the body that is fixed is installed under the situation on the attachment rail, at first, on a plurality of tapped through holes 12 empty in the mounting flange portion 11 of the body that is fixed, main body fixing bolt 10 is inserted into the degree of depth of the bolt buckling part 13a of the retaining ring 13 that the seat of arrival on being located at tapped through hole 12 keep among the 12a of hole respectively, carries out the temporary fixed of main body fixing bolt 10 thus.Then, can insert at main body fixing bolt 10 on the position of tapped hole of attachment rail and keep open and close valve, utilize instrument etc. to tighten main body fixing bolt 10 and open and close valve is fixed on the attachment rail.
Under the situation of dismounting, keep open and close valve with one hand, loosening each main body fixing bolt 10 and when tapped hole dismantle owing to maintaining the screw section of main body fixing bolt 10 on the bolt buckling part 13a of retaining ring 13, thereby does not have the worry that main body fixing bolt 10 comes off from mounting flange portion 11.
Therefore owing to can prevent coming off of main body fixing bolt 10 as described above, even thereby make at needs under the situation that the head of the bolt of the body that fixedly is fixed installs with horizontal or downward posture, bolt can not come off yet, thus the raising operation.And,, thereby can realize bolt falling preventive structure at an easy rate because necessary processing is simpler than disclosed method in patent documentation 1, the patent documentation 2.And, because the material of retaining ring 13 is used fluorine rubber, thereby the heat resistance height, thereby can also be used in the semiconductor-fabricating device that might utilize about heater heats to 120 ℃ etc.And, since with the internal surface of the part of the head butt of main body fixing bolt 10 and with the surface side of attachment rail, stream piece butt on dug a hole 12a, thereby need not increase concavo-convexly, also needn't worry at concavo-convex place aggregated particle etc.
And, because the thickness L5 of bolt buckling part 13a is less than the worm tooth pitch P, thereby moderately keep main body fixing bolt 10, and the dismounting of main body fixing bolt 10 is also easy, even change main body fixing bolt 10 continually, because it is different with patent documentation 1, bolt buckling part 13a is less than the worm tooth pitch P, thereby copy the tooth deformation of bottom of main body fixing bolt 10, bolt buckling part 13a can not reamed by the worm tooth top substantially yet, though also can inferior limit in the use in the purifying chamber ground suppress the generation of particle etc.
In addition, the plate of patent documentation 2, though with retaining ring 13 of the present invention similarly, bolt buckling part 13a makes less than the worm tooth pitch P, but not having moderately to have the record of the parts of deformability as retaining ring 13 of the present invention, and for installation method, also is that retaining ring of the present invention 13 is easier, owing to do not need the slit 121e as patent documentation 2, the part that is used for mounting plate 124 the jut 121c, thereby the cost aspect is also good.
Second embodiment
Then, the second embodiment of the present invention is described.
Fig. 3 represents first embodiment's perspective view; Fig. 4 represents second embodiment's perspective view.
Second embodiment's retaining ring 13 is though have the profile roughly the same with first embodiment's retaining ring 13, the shape difference of the part of bolt buckling part 13a.Second embodiment's bolt buckling part 13a is not simple circle, has notch at 3 places, and the area of contact of bolt buckling part 13a and main body fixing bolt 10 diminishes.That is, bolt buckling part 13a forms and to be made of 3 roughly trapezoidal projections, the tooth base diameter contacting structure of one side of roughly trapezoidal projection and the external thread part of main body fixing bolt 10.In addition, the thickness L5 of bolt buckling part 13a is identical with first embodiment, and thickness L5 is set to less than the worm tooth pitch P.
As mentioned above, as shown in Figure 1, retaining ring 13 is gone into from the 12a side pressure of seat hole, contacts with step surface 12b and keeps in the present hole 12a.Then, when main body fixing bolt 10 inserted in the tapped through holes 12, bolt buckling part 13a embedded the tooth bottom of the screw section of main body fixing bolt 10 and divides, and constituting comes off prevents structure and keep main body fixing bolt 10 with suitable confining force.
Therefore, retaining ring 13 because of surperficial contact of the surperficial drum with seat hole 12a of the outside general cylindrical shape shape of retaining ring 13, produces frictional force on the both sides surface, thus the present 12a inside, hole of maintenance.
On the other hand, main body fixing bolt 10, the tooth bottom that embeds the screw section of main body fixing bolt 10 because of the bolt buckling part 13a of retaining ring 13 is divided, and promptly is stuck on the crest part of screw section of main body fixing bolt 10, thereby prevents to come off.Particularly, because bolt buckling part internal diameter L7 as bolt buckling part 13a internal diameter, tooth base diameter than the screw section of main body fixing bolt 10 is big a little, and the crest portion diameter than the screw section is little, thereby bolt buckling part 13a enters the tooth bottom of main body fixing bolt 10, the crest portion fastening of bolt buckling part 13a and main body fixing bolt 10.
No matter be first embodiment's situation, still under second embodiment's the situation, when main body fixing bolt 10 was inserted tapped through hole 12, the frictional force that the outside general cylindrical shape shape face of retaining ring 13 and seat hole 12a produce was greater than the frictional force of the contacting part generation of main body fixing bolt 10 and bolt buckling part 13a.Particularly, the power among the present hole 12a of retaining ring 13 reservations is greater than the power that retaining ring 13 keeps main body fixing bolts 10.
The big several times of area that the outer surface of common retaining ring 13 contacts with main body fixing bolt 10 than bolt buckling part 13a, thereby general being out of question, but under the situation a little less than the frictional force that the frictional force that the outside general cylindrical shape shape face of retaining ring 13 and seat hole 12a produce produces than the contacting part of main body fixing bolt 10 and bolt buckling part 13a, when thinking main body fixing bolt 10 insertion tapped through holes 12, retaining ring 13 can come off.
Particularly, when main body fixing bolt 10 was inserted tapped through hole 12, under the situation about inserting not making 10 rotations of main body fixing bolt, the worm tooth of main body fixing bolt 10 was stuck on the buckling part 13a, and this masterpiece is used on the retaining ring 13.
Be inserted into the situation in the retaining ring 13 making main body fixing bolt 10 rotation and main body fixing bolt 10 is rotated and be inserted under the situation in the retaining ring 13, be clear that, there is stronger masterpiece to be used on the retaining ring 13 under the latter's the situation, and since this power to extract from seat hole 12a retaining ring 13 directive effect, thereby this moment retaining ring 13 outer surface and the frictional force that produces of the internal surface of seat hole 12a hour, the danger that retaining ring 13 comes off uprises.
In order to prevent this situation, in first embodiment, produce suitable confining force by thickness L5 and the bolt buckling part internal diameter L7 that adjusts bolt buckling part 13a.And, owing in the external diameter of retaining ring 13, make rearward end diameter L1, angle is set only is the tapering of θ, thereby be pressed into easily in the hole 12a, and be difficult to break away from greater than front end diameter L2.Thus, insert main body fixing bolt 10, also produce the confining force of the degree that retaining ring 13 can not become flexible even extract.
But, no matter under the situation of the thickness L5 that adjusts bolt buckling part 13a, under the situation of adjusting bolt buckling part internal diameter L7, still under the angle θ of the tapering that makes the outside that is located at retaining ring 13 becomes big situation, all need when making, carry out the change of model etc.Therefore, in second embodiment shown in Figure 4, incision otch and can adjust confining force on bolt buckling part 13a.Thus, owing to for example can also after the shape that forms first embodiment, replenishing the shape that processing forms second embodiment, and adjust confining force, thereby make the more weak retaining ring 13 of power that keeps main body fixing bolt 10 easily by the projection number of bolt buckling part 13a.The 3rd embodiment
Then, the third embodiment of the present invention is described.
Fig. 5 represents the 3rd embodiment's upper surface figure; Fig. 6 represents the 3rd embodiment's sectional view.
In the 3rd embodiment, though form roughly the same profile roughly cylindraceous with first embodiment's retaining ring 13, but bolt buckling part 13a as the parts that are used to keep main body fixing bolt 10, different with second embodiment's bolt buckling part 13a, the width of thickness L5 is greater than the pitch of the bolt of main body fixing bolt 10.In the 3rd embodiment, establish pitch 2 times or more of the thickness L5 of bolt buckling part 13a at main body fixing bolt 10.
The shape of bolt buckling part 13a is not simple circle, has notch at 3 places, and the area of contact of bolt buckling part 13a and main body fixing bolt 10 diminishes.That is, bolt buckling part 13a forms and to be made of 3 roughly trapezoidal projections, and the tooth base diameter contacting structure of one side of roughly trapezoidal projection and the external thread part of main body fixing bolt 10 forms and the similar shape of second embodiment.
About the installation method of retaining ring 13, identical with first embodiment, second embodiment.
Apparently, the 3rd embodiment, owing to bolt buckling part 13a is not that the tooth bottom that enters main body fixing bolt 10 fastens, but the crest portion of bolt buckling part 13a extruding main body fixing bolt 10 and fastening, thereby can think and first embodiment and the opposite thought of second embodiment.
But, in first embodiment and second embodiment,, go up after all as long as the crest portion of main body fixing bolt 10 is stuck in the bolt buckling part 13a of retaining ring 13 in order to keep main body fixing bolt 10.That is, bolt buckling part 13a does not closely mesh with the tooth bottom of main body fixing bolt 10, can bring into play its function yet.
In fact, the claimant has confirmed following situation: no matter the front end of first embodiment's bolt buckling part 13a is a rectangle, still for closely along the shape of the tooth bottom of main body fixing bolt 10, by making bolt buckling part 13a enter the tooth bottom of main body fixing bolt 10, can both bring into play its function.Thereby, making on the retaining ring 13, better when the front end of bolt buckling part 13a is rectangle.
The 3rd embodiment expands this idea, and bolt buckling part 13a fastens by the crest portion with main body fixing bolt 10 and keeps main body fixing bolt 16.Promptly, the seat bore dia L6 of bolt buckling part 13a makes smaller than the crest portion diameter of main body fixing bolt 10, by inserting main body fixing bolt 10 bolt buckling part 13a is pressed in the crest portion of main body fixing bolt 10, carry out resiliently deformable, generation is pressed to inboard power with main body fixing bolt 10, and in the tooth bottom of main body fixing bolt 10, the shape that the bolt buckling part 13a of formation main body fixing bolt 10 enters a little.Thus, can be to hold main body fixing bolt 10 than first embodiment and strong the trying hard to keep of second embodiment.
This situation promptly is to fasten by the crest portion of main body fixing bolt 10 and bolt buckling part 13a to keep main body fixing bolt 10.In other words, also can be called bolt buckling part 13a also fastens with the tooth of main body fixing bolt 10 bottom.
As mentioned above, with second embodiment differently, under the situation that produces the power of stronger maintenance main body fixing bolt 10 than first embodiment, the 3rd embodiment's invention also is effective.
And, because the bolt buckling part 13a of retaining ring 13 keeps main body fixing bolt 10 with the amount of crest portion 2 pitch of main body fixing bolt 10, thereby the internal diameter that can make bolt buckling part 13a is greater than first embodiment, second embodiment, it is few promptly can to make bolt buckling part 13a enter the quantitative change of tooth bottom of main body fixing bolt 10, can produce the confining force that equates with first embodiment, second embodiment.Therefore, it is few to make bolt buckling part 13a enter the quantitative change of tooth bottom of main body fixing bolt 10, can expect to suppress the generation of particle.
The 4th embodiment
Fig. 7 is the perspective view of the 4th embodiment's screw thread retaining ring.And Fig. 8 is the top view of the 4th embodiment's the state that the screw thread retaining ring is inserted in the hole.
The 4th embodiment's retaining ring 13, profile are cube shaped, and the shape of bolt buckling part 13a and second embodiment have notch at 3 places in the same manner, and the area of contact of bolt buckling part 13a and main body fixing bolt 10 diminishes.That is, bolt buckling part 13a forms and to be made of 3 roughly trapezoidal projections, the tooth base diameter contacting structure of one side of roughly trapezoidal projection and the external thread part of main body fixing bolt 10.
In addition, about profile, also can be the lower surface trapezoidal shape bigger than upper surface area.
In the 4th embodiment, as shown in Figure 8, because the tapped through hole 12 that is located in the mounting flange portion 11 is circular hole, relative therewith, the profile of retaining ring 13 is a rectangle, thereby have following feature: by retaining ring 13 is inserted seat hole 12a, the corner angle of retaining ring 13 are crushed, and prevent that by its restoring force retaining ring 13 from supporting from seat hole 12a with coming off.
By this structure, has following feature: after retaining ring 13 is fastened with seat hole 12a securely, extract under the situation of retaining ring 13, extract easily owing to have the space between seat hole 12a and the retaining ring 13 from seat hole 12a.
And as mentioned above, because a seat hole 12a is a circular hole, relative therewith, the profile of retaining ring 13 is under the situation of rectangle, and the corner angle of retaining ring 13 are crushed and enter a hole 12a and get final product, thereby permission size error to a certain degree.That is, even the size of present hole 12a is that columnar situation makes retaining ring 13 easily enter the inside of hole 12a easily than the profile in retaining ring 13 also than under the big or little a little situation of standard.This is because the part that is crushed can be kept out of the way in the empty space.
The 5th embodiment
Fig. 9 is the top view of the 5th embodiment's screw thread retaining ring.And Figure 10 is the sectional view of the 5th embodiment's the state that main body fixing bolt 10 and retaining ring 13 have been installed in mounting flange portion 11.
In the 5th embodiment, it is characterized in that retaining ring 13 has bolt buckling part 13a and these two bolt buckling parts of the second bolt buckling part 13b.Determine bolt buckling part internal diameter L7a so that the bolt of bolt buckling part 13a and M5 fastens, and decision bolt buckling part internal diameter L7b is so that the bolt fastening of the second bolt buckling part 13b and M4.In addition, the thickness L5 of the bolt buckling part 13a and the second bolt buckling part 13b, identical with first embodiment, less than the worm tooth pitch P of main body fixing bolt 10.
The main body fixing bolt 10 of the M4 size of thus, can be shared in physical device, often using and the main body fixing bolt 10 of M5 size.Thus, has the effect that reduces number of components.
The 6th embodiment
Figure 11 is the top view of the 6th embodiment's screw thread retaining ring.
In the 6th embodiment, based on the idea identical with the 5th embodiment, the shape of bolt buckling part 13a is formed on the shape of cutting cross recess on the retaining ring 13.That is, when main body fixing bolt 10 was inserted retaining ring 13, under the form that makes bolt buckling part 13a expansion, main body fixing bolt 10 inserted in the retaining ring 13.Because retaining ring 13 is formed by elastomers such as fluorine rubber or nitrile butadiene rubbers, thereby restoring force works and produces the power that extruding is in the main body fixing bolt 10 of inboard.Thereby keep main body fixing bolt 10.
According to this structure, because the shape of bolt buckling part 13a also can not rely on the size of main body fixing bolt 10, thereby can be with multiple main body fixing bolt 10 shared retaining rings 13, for example be the advantage that the main body fixing bolt 10 of main body fixing bolt 10, serration of imperial sizing also can be tackled even have.
More than, although understand embodiments of the present invention, but the present invention is not limited to above-mentioned mode of execution, can realize various application.For example, can make the shape in a hole form ellipse, polygon as required, and make the profile of retaining ring also correspondingly change shape, thereby improve the confining force of retaining ring itself with respect to the seat hole, or a part that only makes retaining ring forms the shape of otch and make installation become easy, or move the deformation extent of adjusting retaining ring to the short transverse of retaining ring by the position that makes the bolt buckling part.
And the position of bolt buckling part can move freely, and its shape also can be triangle, four jiaos, curve-like.This is because the outside cylindrical shape portion that needs only retaining ring just can bring into play its function with the shape that the tooth bottom than power a little less than the frictional force that seat hole was had and bolt buckling part fastens.
Claims (10)
1. a bolt falling preventive structure is characterized in that,
Be formed with the body that is fixed that makes the tapped through hole that bolt connects, be formed with the diameter seat hole bigger with surface than described tapped through hole with a side of the surface opposite of bolt head butt;
Keep by the described relatively seat of the shape of profile hole, and the retaining ring of the bolt buckling part that fastens of the crest portion with described bolt that is formed with in inside is installed in the described seat hole, thereby prevents coming off of described bolt.
2. bolt falling preventive structure according to claim 1 is characterized in that,
The periphery of described retaining ring is a drum, and the diameter of rearward end is greater than the internal diameter in described seat hole, and the diameter of front end is identical or littler with the internal diameter in described seat hole, is formed with bolt buckling part with the crest portion fastening of bolt at described front end.
3. bolt falling preventive structure according to claim 1 and 2 is characterized in that,
The thickness of described bolt buckling part is less than the pitch of described bolt.
4. according to claim 1 or 2 or 3 described bolt falling preventive structures, it is characterized in that,
The material of described retaining ring is fluorine rubber or nitrile butadiene rubber.
5. retaining ring is used for keeping being installed in the bolt of mounting hole, it is characterized in that,
Keep by the described relatively mounting hole of the shape of profile, be formed with the bolt buckling part that the crest portion with described bolt fastens in inside.
6. retaining ring according to claim 5 is characterized in that,
The periphery of described retaining ring is a drum, and the diameter of rearward end is greater than the internal diameter of described mounting hole, and the diameter of front end is identical with the internal diameter of described mounting hole or littler, is formed with the bolt buckling part that fastens with the crest portion of bolt at described front end.
7. according to claim 5 or 6 described retaining rings, it is characterized in that,
The thickness of described bolt buckling part is less than the pitch of described bolt.
8. according to claim 5 or 6 or 7 described retaining rings, it is characterized in that,
Material is fluorine rubber or nitrile butadiene rubber.
9. according to each the described bolt falling preventive structure in claim 1 to 4, it is characterized in that,
The shape of the described bolt buckling part of described retaining ring is formed by a plurality of projections, and the crest portion of described projected front ends portion and described bolt fastens.
10. according to each the described retaining ring in the claim 5 to 8, it is characterized in that,
The shape of the described bolt buckling part of described retaining ring is formed by a plurality of projections, and the crest portion of described projected front ends portion and described bolt fastens.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP242766/2004 | 2004-08-23 | ||
| JP2004242766 | 2004-08-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101006277A true CN101006277A (en) | 2007-07-25 |
| CN100455830C CN100455830C (en) | 2009-01-28 |
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ID=35967322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800286205A Active CN100455830C (en) | 2004-08-23 | 2005-07-22 | Bolt falling preventive structure and hold ring |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPWO2006022103A1 (en) |
| KR (1) | KR20070049672A (en) |
| CN (1) | CN100455830C (en) |
| TW (1) | TWI285242B (en) |
| WO (1) | WO2006022103A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200164A (en) * | 2010-03-24 | 2011-09-28 | 株式会社山武 | Screwing structure |
| CN102705346A (en) * | 2012-06-20 | 2012-10-03 | 常熟市平冶机械有限公司 | Novel bolt |
| CN104514791A (en) * | 2013-09-29 | 2015-04-15 | 珠海格力电器股份有限公司 | Locking structure and door lock device and electric cabinet with same |
| CN108457940A (en) * | 2018-05-25 | 2018-08-28 | 茵科门控（珠海保税区）有限公司 | A kind of swivel nut disconnecting prevention structure |
| CN108700104A (en) * | 2016-03-02 | 2018-10-23 | 株式会社青山制作所 | Self-locking screw |
| CN109323795A (en) * | 2017-07-31 | 2019-02-12 | 日本特殊陶业株式会社 | Detonation sensor unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4987955B2 (en) * | 2009-12-21 | 2012-08-01 | 株式会社椿本チエイン | Tensioner unit for transmission |
| CN104208732B (en) * | 2014-09-16 | 2016-11-23 | 张家港市欧思瑞科技有限公司 | A kind of detachable vehicle of sterilization track of sterilizing cabinet |
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| JPS6338393U (en) * | 1986-08-27 | 1988-03-11 | ||
| CN87216534U (en) * | 1987-12-18 | 1988-09-21 | 滁州电业局电力修造厂 | Screw bolt capable of preventing nut from falling off |
| JPH0230518U (en) * | 1988-08-22 | 1990-02-27 | ||
| JPH051711A (en) * | 1991-06-24 | 1993-01-08 | Matsushita Electric Ind Co Ltd | Temporarily fastening device for case body mounting screw |
| JPH05237365A (en) * | 1992-02-27 | 1993-09-17 | Dai Ichi Seiyaku Co Ltd | Chlorine-based gas generating instrument and usage of the same instrument |
| CN2242362Y (en) * | 1995-12-15 | 1996-12-11 | 长沙市标准件二厂 | Bolt with locking function |
| JPH09262908A (en) * | 1996-03-28 | 1997-10-07 | Kureha Chem Ind Co Ltd | Defect examination method for plastic molded article |
| CN2316500Y (en) * | 1997-12-29 | 1999-04-28 | 黄茂雄 | Nut locking column structure |
| JP2000192933A (en) * | 1998-12-25 | 2000-07-11 | Asahi Chem Ind Co Ltd | Bolt installing structure and bolt installing member |
| GB0001296D0 (en) * | 2000-01-21 | 2000-03-08 | British Aerospace | Self-locking threaded fastening assembly |
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2005
- 2005-07-22 CN CNB2005800286205A patent/CN100455830C/en active Active
- 2005-07-22 WO PCT/JP2005/013495 patent/WO2006022103A1/en active Application Filing
- 2005-07-22 JP JP2006531387A patent/JPWO2006022103A1/en active Pending
- 2005-07-22 KR KR1020077006362A patent/KR20070049672A/en not_active Application Discontinuation
- 2005-07-26 TW TW094125266A patent/TWI285242B/en active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200164A (en) * | 2010-03-24 | 2011-09-28 | 株式会社山武 | Screwing structure |
| CN102705346A (en) * | 2012-06-20 | 2012-10-03 | 常熟市平冶机械有限公司 | Novel bolt |
| CN104514791A (en) * | 2013-09-29 | 2015-04-15 | 珠海格力电器股份有限公司 | Locking structure and door lock device and electric cabinet with same |
| CN104514791B (en) * | 2013-09-29 | 2017-01-04 | 珠海格力电器股份有限公司 | Locking mechanism and there is its door lock assembly and electric cabinet |
| CN108700104A (en) * | 2016-03-02 | 2018-10-23 | 株式会社青山制作所 | Self-locking screw |
| CN109323795A (en) * | 2017-07-31 | 2019-02-12 | 日本特殊陶业株式会社 | Detonation sensor unit |
| CN109323795B (en) * | 2017-07-31 | 2022-01-11 | 日本特殊陶业株式会社 | Knock sensor unit |
| CN108457940A (en) * | 2018-05-25 | 2018-08-28 | 茵科门控（珠海保税区）有限公司 | A kind of swivel nut disconnecting prevention structure |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20070049672A (en) | 2007-05-11 |
| WO2006022103A1 (en) | 2006-03-02 |
| CN100455830C (en) | 2009-01-28 |
| TW200613649A (en) | 2006-05-01 |
| JPWO2006022103A1 (en) | 2008-05-08 |
| TWI285242B (en) | 2007-08-11 |
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