CN100569134C - Self-locking type multiple safety hook - Google Patents
Self-locking type multiple safety hook Download PDFInfo
- Publication number
- CN100569134C CN100569134C CNB2006101185034A CN200610118503A CN100569134C CN 100569134 C CN100569134 C CN 100569134C CN B2006101185034 A CNB2006101185034 A CN B2006101185034A CN 200610118503 A CN200610118503 A CN 200610118503A CN 100569134 C CN100569134 C CN 100569134C
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- cap liner
- hook
- safety door
- groove
- slot
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Abstract
The invention discloses a kind of self-locking type multiple safety hook, comprise hook body, gib head and cap liner, gib head comprises a bend and a sharp mouth, is connected with back-moving spring between cap liner and the hook body, the point mouth is provided with an alignment pin, and the head formation one of cap liner can be entangled the sealing sleeve of described alignment pin; Hook is provided with a pivot and a pilot pin on one's body, and cap liner is provided with one can center on the groove that pilot pin moves around the slot and that pivot moves.Compare with existing safety door hook, the ability that this safety door hook bears comprehensive load is stronger, and when safety door hook bore external force, the cap liner of this safety door hook reduced greatly from the unexpected possibility that breaks away from of the sharp mouth of safety door hook.This safety door hook can be used for the guard system that falls.
Description
Technical field
The present invention relates to the articles for labour protection field, relate in particular to a kind of multi-purpose self-locking type multiple safety hooks such as safety belt, safety belt, safety rope that are used for.
Background technology
Safety door hook has many different styles, and different separately purposes is also arranged.Wherein just comprise the high-altitude fall arrest.
In the construction site, work high above the ground or ground excavation scene, and all may cause the occasion of casualties, property loss because of personnel or object fall, the protection of falling is vital.In many areas, using the protection of falling is basic demand, also is legal provisions.A common cover guard system that falls is to fasten one's safety belt or safety belt to the operating personnel, with rope, cable or belt the operating personnel is connected on the fixture.For example, personnel can fasten one's safety belt or life line during operation on bridge, tower or high building usually, and life line is made by rope or belt mostly, and an end of rope or belt is fixed on the fixture of personnel institute operation.At lumbering, personnel also can fasten safety belt during operation usually on the tree bar, and belt one end of safety belt links to each other with a side of safety belt, and the other end links to each other with the opposite side of safety belt around trunk.Usually, belt has at least an end need use safety door hook, enables to be connected with safety belt or fixture easily.
In theory, if staff is with belt and safety belt is tied up on a fixture securely by a life line,, also be a bit of distance even these personnel fall so, can be not dangerous before being rescued.Safety belt and the high-altitude fall arrest product that uses not is to play a role at present, even can not prevent the generation of accident but in fact.If safety door hook is malfunctioning on safety belt and the lifting operation, will cause serious consequence.
Use cap liner at the safety door hook sweep, an end of life line is fixed on the jobbie,, comprised and be hung in interior various application so be widely used in because this method is easy.But easy safety door hook may accident be opened when cap liner is stressed.For this reason, people have developed various locking devices.Though these locking devices have reduced the possibility that the safety door hook accident is opened, directly stressed when safety door hook, especially when the cap liner of safety door hook bore load perpendicular to the hook longitudinal axis, cap liner was easy to from the bend of safety door hook or the disengaging of sharp mouth.
For easy to use, most cap liner only need bear single external force and just can open.But, during other was used at some, people just can open the external force that the structure of cap liner and locking device is designed to apply two different directions, and these two external force act on respectively on cap liner and the locking device.Nonetheless, when placing safety door hook on the surface of solids, extruding also may cause cap liner to break away from from sharp mouth is unexpected.At this moment, the disengaging of cap liner will constitute significant threat to the safety of personnel and equipment.
Summary of the invention
Technical problem to be solved by this invention is the above-mentioned defective that overcomes prior art, provide a kind of safe class higher self-locking type multiple safety hook, compared with prior art, the ability that this safety door hook bears comprehensive load is stronger, when safety door hook bore external force, the cap liner of this safety door hook reduced greatly from the unexpected possibility that breaks away from of the sharp mouth of safety door hook.
Self-locking type multiple safety hook of the present invention, comprise hook body, gib head and cap liner, gib head comprises a bend and a sharp mouth, is connected with back-moving spring between cap liner and the hook body, the point mouth is provided with an alignment pin, and the head formation one of cap liner can be entangled the sealing sleeve of described alignment pin; Hook is provided with a pivot and a pilot pin on one's body, and cap liner is provided with one can center on the groove that pilot pin moves around the slot and that pivot moves.
The shape of described slot is J-shaped or C shape, and the shape of described groove is S-shaped or Z-shaped.
As another kind of technical scheme of the present invention, self-locking type multiple safety hook of the present invention, comprise hook body, gib head and cap liner, gib head comprises a bend and a sharp mouth, be connected with back-moving spring between cap liner and the hook body, the point mouth is provided with an alignment pin, and the head formation one of cap liner can be entangled the sealing sleeve of described alignment pin; Hook is provided with a slot and a groove on one's body, and cap liner is provided with a pivot that can move along described slot and a pilot pin that can move along described groove.
The shape of described slot is J-shaped or C shape, and the shape of described groove is S-shaped or Z-shaped.
Self-locking type multiple safety hook of the present invention, interaction by sealing sleeve and alignment pin, and on safety door hook, be provided with slot and groove, cap liner is carried out screens, feasible needs apply four external force successively from different directions just can open cap liner, thereby strengthened the ability that cap liner bears comprehensive load, greatly reduced cap liner, improved the safety of safety door hook from the possibility that safety bill mouth breaks away from.
Description of drawings
Fig. 1 is the front view of self-locking type multiple safety hook of the present invention;
Fig. 2 is the vertical view of self-locking type multiple safety hook of the present invention;
Fig. 3 is the upward view of self-locking type multiple safety hook of the present invention;
Fig. 4 is the left view of self-locking type multiple safety hook of the present invention;
Fig. 5 is the right view of self-locking type multiple safety hook of the present invention;
Fig. 6 is the front view of the cap liner of self-locking type multiple safety hook of the present invention when being in open mode;
Fig. 7 is the profile along A-A line among Fig. 2;
Fig. 8 is in the profile of firm open mode for the cap liner of Fig. 7;
Fig. 9 is in the profile of further open mode for the cap liner of Fig. 8;
Figure 10 is in the further profile of open mode for the cap liner of Fig. 9;
Figure 11 is in the profile of full open position for the cap liner of Figure 10.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
Fig. 1 is the front view of self-locking type multiple safety hook of the present invention, as shown in the figure, safety door hook 1 comprises hook body 3, and an end of hook body is a gib head 4, the other end is device such as annulus hook tail 5 or U-shaped hook normally, and safety door hook is fixed on rope, cable, belt, chain or other object.In most cases, hook body 3, gib head 4 and annulus hook tail 5 are an integral body, are made by high-intensity steel alloy or other metal, in order to gain in strength, also can forge.
Gib head 4 is an arch, and it comprises bend 41, sharp mouth 42 and the openend 43 that is connected sharp mouth 42.Distance between point mouth 42 and the hook body 3 forms an opening 10, and this opening can be fixed on the object that installs such as eyebolt, life line and safety rope etc. by safety door hook 1.Safety door hook 1 also comprises cap liner 9, is used to seal opening 10 and prevents that safety door hook 1 breaks away from from cable or other device that it was connected.Identical with the safety door hook of prior art, the cap liner of this safety door hook also has enable possition and closed position.In the closed position, it is across opening, thereby seals the opening of bend 41; In the enable possition, object can pass opening comparatively unobstructedly and enter bend 41.Profile 7 to 11 shows cap liner 9 and is connected to the mode on the hook body 3 and the method for operating of cap liner.In this embodiment, shape is similar to the cap liner 9 of fuel plate, is received within the groove 11 of hook body 3.According to the manufacture method of hook body 3, groove 11 can be to add a cover on one's body hook, also can process on one's body at hook.As shown in the figure, hook body 3 is lamination type, is formed by a series of plate object riveted joints, and has groove 11.
Regardless of the manufacture method of hook body 3,, form the ability that a lamination type structure can improve the intensity of cap liner and bear the edge load as long as cap liner is in the groove 11.Cap liner 9 is fixed on the hook body 3 with the form of rotating by one or more alignment pin or pivot, so that cap liner is housed in the groove 11 at least in part.Cap liner around the alignment pin or the pivot of rotation can be the part of hook body, also can be fixed on the cap liner.Fig. 7 shows alignment pin 12 and pivot 13, and alignment pin or pivot can be riveted on one's body the hook.Open cap liner 9, cap liner 9 will rotate around the alignment pin on the sharp mouth 42 12 earlier, and the pivot on hook body 3 13 rotates then.As a kind of embodiment, alignment pin 12 is positioned on the sharp mouth 42, and alignment pin 12 can be connecting rod or rivet.When cap liner is in when closing, alignment pin 12 to small part is enclosed in the sealing sleeve 94, and sealing sleeve 94 is on the openend 95 of cap liner.The interaction of alignment pin 12 and sealing sleeve 94 has strengthened cap liner and has born the ability of load, and prevents that openend 95 breaks away from from sharp mouth.Similar with the hook body 3 of band slot, the openend 43 that connects sharp mouth 42 also has an interior slot, and the openend 95 of cap liner can be received in this slot (sees Fig. 1 and Fig. 2).The advantage of this safety door hook is: when cap liner was in the closed position, alignment pin 12 to small part was enclosed in the sealing sleeve 94, was all strengthened thereby make the cap liner top bear the ability that external load and bend 41 bear external load.In addition, the head of cap liner is curved, and when cap liner was in the closed position, cap liner, gib head and hook figure had become the circulus of sealing.This structure helps stressed uniformly, thereby has improved the ability that cap liner and gib head bear load.As shown in Figure 7, pivot 13 is fixed on the hook body 3, is provided with the slot 16 that is used for blocking pivot 13 on cap liner 9.Because pivot 13 is stuck in the slot 16, cap liner 9 just has been fixed on the hook body 3, and can rotate between the opening and closing position around hook.Simultaneously, the rotation of cap liner is subjected to the control of pivot 13 in the slot 16 to a great extent, and this also is one of advantage of safety door hook of the present invention.Another advantage is that the position of pivot 13 and slot 16 can exchange, and promptly pivot is positioned on the cap liner, and slot is positioned on one's body the hook, and the method is not shown in the diagram.
The same with the safety door hook of prior art, cap liner is in normally closed position.For this reason, safety door hook has at least one back-moving spring 17, its role is to keep cap liner to be in closed condition.As shown in the figure, an end of back-moving spring 17 is fixed on the arm 98, and arm 98 is positioned on the cap liner 9, and the other end is fixed on the hook body 3 with alignment pin 19.As cap liner is rotated around pivot 13, need apply a external force greater than spring force.With alignment pin back-moving spring is fixed on one's body the hook, makes spring in the cap liner moving process, in the groove 11 of hook body 3, can rotate freely.
As shown in Figure 7, safety door hook 1 of the present invention has also disposed a pilot pin 20 that is enclosed within the groove 21, is used for keeping cap liner 9 to be in closed condition.Pilot pin 20 is fixed on the hook body 3, is provided with a groove 21 on cap liner 9.The position of pilot pin and groove also can exchange, and promptly pilot pin is positioned on the cap liner, and groove is positioned on one's body the hook.Pilot pin 20 and groove 21 can be controlled cap liner and rotate around pivot 13.Assembling for convenience, under the situation, alignment pin 12, pivot 13, alignment pin 19 and pilot pin 20 all are mounted in the rivet of hook body 3 sides mostly.
In order to introduce the function of safety door hook 1 more fully, how will to introduce in detail below cap liner 9 will be moved to the enable possition from the closed position.This need apply four external force in succession.Fig. 7 has shown the cap liner 9 that is in closed condition.Sealing sleeve 94 on the openend 95 of cap liner partly entangles alignment pin 12, and back-moving spring 17 applies longitudinal pressure to cap liner.In this process, back-moving spring 17 impels pivot 13 and pilot pin 20 to enter the blind end 22 and 23 of slot 16 and groove 21 respectively.The size of cap liner preferably, when pivot 13 and pilot pin 20 entered blind end 22,23, alignment pin 12 still part was enclosed within the sealing sleeve 14.Like this, as mentioned above, the interaction of alignment pin 12 and sealing sleeve 14 will strengthen the ability of load that cap liner bears.Fig. 8 is the profile during firm open mode for the cap liner of safety door hook 1 is in.Applied an external force parallel with the coupler body longitudinal axis to cap liner 9 this moment.When this external force surpasses the elastic force of back-moving spring 17, cap liner 9 will slide to the direction parallel with the coupler body longitudinal axis, slide to alignment pin 12 and enter sealing sleeve 14 fully up to this alignment pin, and this moment, pivot 13 and pilot pin 20 were in the outer rim of blind end 22,23.For making pivot 13 and pilot pin 20 can be in the outer rim of blind end 22,23, preferably, when cap liner was in closed condition, the gap (see figure 7) width between the bottom of sealing sleeve 14 and the alignment pin 12 equaled gap width between pivot 13 and blind end 22 outer rims and the gap width between pilot pin 20 and the blind end 23.Applying an external force vertical with the first road power to cap liner 10 again impels cap liner 9 to rotate around alignment pin 12, pivot 13 and pilot pin 20 will slide to slot 16 and groove 21 lateral parts 31,32 respectively, stop up to the corner 24,25 of pivot 13 and pilot pin 20 each comfortable slot 16 and groove 21.This moment, alignment pin 12 still was enclosed in the sealing sleeve 94, as shown in Figure 9.As continuing to open cap liner 9, need apply an external force opposite once more with first force direction.That is, cap liner slides to the right, and is parallel with the longitudinal axis of coupler body, so that sealing sleeve 94 is pulled away from alignment pin 12.This will impel pivot 13 and pilot pin 20 to enter the longitudinal component 26,27 of slot 16 and groove 21.For sealing sleeve 94 is pulled away from alignment pin 12, preferably, pilot pin 20 in the longitudinal component 27 of groove 21 movably length should be not less than the degree of depth of sealing sleeve 94.As shown in the figure, groove 21 be shaped as S shape, slot 16 is generally J-shaped.Those skilled in the art are easy to expect that being shaped as of groove 21 can be Z-shaped, and slot 16 can be C shape.In longitudinal component 26, a spring 28 is arranged, the effect of spring 28 is restriction pivot 13 moving in longitudinal component 26, can control cap liner simultaneously.Between pivot 13 and spring 28, place spring foundation ring 29, be used for fixing spring and provide a supporting surface for pivot 13.Figure 10 and 11 is the generalized section in latter two stage in cap liner 9 opening procedures.After applying the 3rd external force to the right, the cap liner alignment pin 12 that slips away to the right, do not have alignment pin in the sealing sleeve 94 this moment, and cap liner can rotate around pivot 13, and pilot pin 20 moves along the arciform leg 30 of groove 21.Need to apply the power all round of rotation at last, cap liner is rotated around pivot 13, pilot pin 20 continues to move along the arciform leg 30 of groove 21.Simultaneously, the openend 95 of cap liner will leave sharp mouth 42 to inner rotary, and then successfully open safety door hook.Reduce to the minimum point of arciform leg 30 when pilot pin 20, as shown in figure 11, cap liner 9 is opened fully.Preferably, the upper end of cap liner is provided with thumb post by place 97, makes it to move more convenient.
Openhanded opening, cap liner is closed automatically.Cap liner is decontroled, and back-moving spring 17 will impel cap liner to rotate to the direction opposite with the external force of opening cap liner, and when cap liner rotated, pivot 13 moved backward, and pilot pin 20 moves the back mutually along arciform leg 30; When pilot pin 20 crosses whole arciform leg 30, cap liner will the direction perpendicular to alignment pin 12 move in the effect lower edge of compression spring 28, will be inserted in again in the sealing sleeve 94 up to alignment pin 12.Then, back-moving spring 17 will impel cap liner to rotate to the direction of leaving the hook body around alignment pin 12, and pivot 13 and pilot pin 20 cross the lateral part 31 and 32 of slot 16 and groove 21 respectively, in finally being parked in blind end 22 and 23, as shown in Figure 7.
In sum, as can be seen: the inherent safety that safety door hook structure of the present invention is shown is that safety door hook was not available in the past, and it has strengthened the ability that safety door hook bears multi-faceted load.Have only when four road external force act on cap liner in the correct order, safety door hook just can be opened, and therefore the in use unexpected possibility of opening of safety door hook of the present invention is very little.
Though description of the invention combines certain embodiments, it should be understood by one skilled in the art that the present invention is not limited to embodiment described here, and can carry out various modifications and variations and do not deviate from the spirit and scope of the present invention.
Claims (10)
1. self-locking type multiple safety hook, comprise hook body, gib head and cap liner, described gib head comprises a bend and a sharp mouth, be connected with back-moving spring between described cap liner and the described hook body, it is characterized in that, described sharp mouth is provided with an alignment pin, and the head formation one of described cap liner can be entangled the sealing sleeve of described alignment pin; Described hook is provided with a pivot and a pilot pin on one's body, and described cap liner is provided with one can center on the groove that described pilot pin moves around the slot and that described pivot moves.
2. safety door hook as claimed in claim 1 is characterized in that, the shape of described slot is J-shaped or C shape, and the shape of described groove is S-shaped or Z-shaped.
3. safety door hook as claimed in claim 2 is characterized in that, is provided with a spring in described slot.
4. as claim 2 or 3 described safety door hooks, it is characterized in that, described slot comprise first longitudinal component, with described first longitudinal component first lateral part connected vertically and with described first lateral part first closed end portion connected vertically; Described groove comprise the arciform leg that is circular-arc, second longitudinal component that is connected with described arciform leg, with described second longitudinal component second lateral part connected vertically and with described second lateral part second closed end portion connected vertically; Described pilot pin in described groove second longitudinal component movably length be not less than the degree of depth of described sealing sleeve; When described cap liner is in closed condition, one gap is arranged between the bottom of sealing sleeve and the alignment pin, and the width in this gap equals the gap width between the second blind end outer rim of gap width between the first blind end outer rim of described pivot and described slot and described pilot pin and described groove.
5. safety door hook as claimed in claim 4 is characterized in that the head of described cap liner is curved, and when described cap liner was in closed condition, cap liner, gib head and hook figure became the ring of a sealing.
6. safety door hook as claimed in claim 5 is characterized in that described hook is provided with a groove on one's body, and described cap liner is contained in the described groove.
7. self-locking type multiple safety hook, comprise hook body, gib head and cap liner, described gib head comprises a bend and a sharp mouth, be connected with back-moving spring between described cap liner and the described hook body, it is characterized in that, described sharp mouth is provided with an alignment pin, and the head formation one of described cap liner can be entangled the sealing sleeve of described alignment pin; Described hook is provided with a slot and a groove on one's body, and described cap liner is provided with a pivot that can move along described slot and a pilot pin that can move along described groove.
8. safety door hook as claimed in claim 7 is characterized in that, the shape of described slot is J-shaped or C shape, and the shape of described groove is S-shaped or Z-shaped, is provided with a spring in described slot.
9. safety door hook as claimed in claim 8 is characterized in that, described slot comprise first longitudinal component, with described first longitudinal component first lateral part connected vertically and with described first lateral part first closed end portion connected vertically; Described groove comprise the arciform leg that is circular-arc, second longitudinal component that is connected with described arciform leg, with described second longitudinal component second lateral part connected vertically and with described second lateral part second closed end portion connected vertically; Described pilot pin in groove second longitudinal component movably length be not less than the degree of depth of described sealing sleeve; When described cap liner is in closed condition, one gap is arranged between the bottom of sealing sleeve and the alignment pin, and the width in this gap equals the gap width between the second blind end outer rim of gap width between the first blind end outer rim of described pivot and described slot and described pilot pin and described groove.
10. safety door hook as claimed in claim 9 is characterized in that the head of described cap liner is curved, and when described cap liner was in closed condition, cap liner, gib head and hook figure became the ring of a sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101185034A CN100569134C (en) | 2006-11-20 | 2006-11-20 | Self-locking type multiple safety hook |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101185034A CN100569134C (en) | 2006-11-20 | 2006-11-20 | Self-locking type multiple safety hook |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101190051A CN101190051A (en) | 2008-06-04 |
| CN100569134C true CN100569134C (en) | 2009-12-16 |
Family
ID=39485365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101185034A Expired - Fee Related CN100569134C (en) | 2006-11-20 | 2006-11-20 | Self-locking type multiple safety hook |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100569134C (en) |
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2006
- 2006-11-20 CN CNB2006101185034A patent/CN100569134C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101190051A (en) | 2008-06-04 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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Granted publication date: 20091216 Termination date: 20111120 |